CN111350844B - Ball valve - Google Patents

Ball valve Download PDF

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Publication number
CN111350844B
CN111350844B CN201811582853.5A CN201811582853A CN111350844B CN 111350844 B CN111350844 B CN 111350844B CN 201811582853 A CN201811582853 A CN 201811582853A CN 111350844 B CN111350844 B CN 111350844B
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China
Prior art keywords
valve
valve core
valve body
hole
component
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Application number
CN201811582853.5A
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Chinese (zh)
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CN111350844A (en
Inventor
不公告发明人
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Zhejiang Sanhua Automotive Components Co Ltd
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Zhejiang Sanhua Automotive Components Co Ltd
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Application filed by Zhejiang Sanhua Automotive Components Co Ltd filed Critical Zhejiang Sanhua Automotive Components Co Ltd
Priority to CN201811582853.5A priority Critical patent/CN111350844B/en
Priority to US17/309,299 priority patent/US11384852B2/en
Priority to JP2021526810A priority patent/JP7228694B2/en
Priority to PCT/CN2019/115843 priority patent/WO2020134613A1/en
Priority to EP19902051.2A priority patent/EP3904736A4/en
Publication of CN111350844A publication Critical patent/CN111350844A/en
Application granted granted Critical
Publication of CN111350844B publication Critical patent/CN111350844B/en
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
    • F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
    • F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
    • F16K11/087—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug
    • F16K11/0873—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with spherical plug the plug being only rotatable around one spindle
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K27/00—Construction of housing; Use of materials therefor
    • F16K27/06—Construction of housing; Use of materials therefor of taps or cocks
    • F16K27/067—Construction of housing; Use of materials therefor of taps or cocks with spherical plugs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/02—Actuating devices; Operating means; Releasing devices electric; magnetic
    • F16K31/04—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor
    • F16K31/041—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves
    • F16K31/043—Actuating devices; Operating means; Releasing devices electric; magnetic using a motor for rotating valves characterised by mechanical means between the motor and the valve, e.g. lost motion means reducing backlash, clutches, brakes or return means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K31/00—Actuating devices; Operating means; Releasing devices
    • F16K31/44—Mechanical actuating means
    • F16K31/53—Mechanical actuating means with toothed gearing
    • F16K31/535—Mechanical actuating means with toothed gearing for rotating valves
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0605—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor with particular plug arrangements, e.g. particular shape or built-in means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0647—Spindles or actuating means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
    • F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
    • F16K5/06—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having spherical surfaces; Packings therefor
    • F16K5/0663—Packings
    • F16K5/0689—Packings between housing and plug

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electrically Driven Valve-Operating Means (AREA)

Abstract

本发明公开一种球阀，包括驱动机构、传动机构、阀体组件和阀芯部件，驱动机构包括转子部件和电机轴部件，电机轴部件与转子部件固定或者限位连接，电机轴部件与传动机构固定或者限位连接，阀芯部件与传动结构固定或者限位连接；阀体组件包括第一阀体部件，阀体组件形成有容纳腔，容纳腔包括第一阀体部件腔，第一阀体部件腔位于第一阀体部件，阀芯部件至少部分容置于第一阀体部件腔，阀芯部件设置有阀芯通孔，电机轴部件穿过阀芯通孔，且电机轴部件与阀芯通孔所对应的内壁之间间隙配合，电机轴部件的一端伸出阀芯部件且限位于第一阀体部件。如此设置，能够减小阀芯部件在转动过程中发生偏斜和晃动量，提高阀芯部件的稳定性。

Figure 201811582853

The invention discloses a ball valve, which includes a driving mechanism, a transmission mechanism, a valve body assembly and a valve core component. The driving mechanism includes a rotor component and a motor shaft component. Fixed or limit connection, the valve core part is fixed or limited connection with the transmission structure; the valve body assembly includes a first valve body part, the valve body assembly is formed with an accommodating cavity, the accommodating cavity includes a first valve body part cavity, and the first valve body The component cavity is located in the first valve body component, the valve core component is at least partially accommodated in the first valve body component cavity, the valve core component is provided with a valve core through hole, the motor shaft component passes through the valve core through hole, and the motor shaft component is connected to the valve core through hole. The inner walls corresponding to the core through holes are in clearance fit, and one end of the motor shaft part protrudes from the valve core part and is limited to the first valve body part. This arrangement can reduce the amount of deflection and shaking of the valve core component during the rotation process, and improve the stability of the valve core component.

Figure 201811582853

Description

Ball valve
[ technical field ] A
The invention relates to the technical field of fluid control, in particular to a ball valve.
[ background of the invention ]
The electric ball valve can be used as a component of a heat management system such as a new energy automobile air conditioning system and battery cooling, and has the function of switching medium flow. The motor shaft of general electric ball valve is connected with transmission structure, and the case passes through the valve rod and is connected with transmission mechanism, and in order to prevent that the case from taking place the skew and rocking, the valve rod is comparatively complicated with case, transmission mechanism connection.
[ summary of the invention ]
The technical scheme of the invention provides a ball valve which can improve the stability of a valve element component, and comprises a driving mechanism, a transmission mechanism, a valve body component and a valve element component, wherein the driving mechanism is driven to act through the action of the driving mechanism, the valve element component is driven to act through the action of the transmission mechanism, the driving mechanism comprises a rotor component and a motor shaft component, the motor shaft component is fixedly or limitedly connected with the rotor component, the motor shaft component is fixedly or limitedly connected with the transmission mechanism, and the valve element component is fixedly or limitedly connected with the transmission mechanism;
the valve body component comprises a first valve body part, a containing cavity is formed in the valve body component, the containing cavity comprises a first valve body part cavity, the first valve body part cavity is located in the first valve body part, at least part of the valve core part is contained in the first valve body part cavity, the valve core part is provided with a valve core through hole, the motor shaft part penetrates through the valve core through hole and is in clearance fit with the inner wall corresponding to the valve core through hole, and one end of the motor shaft part extends out of the valve core part and is limited on the first valve body part.
The driving mechanism also comprises a sleeve, the rotor part is arranged in the sleeve, the rotor part is provided with a first through hole, one end of the motor shaft part penetrates through the first through hole and is limited in the sleeve, the sleeve comprises a tubular body with one closed end, a first blind hole part protruding outwards is arranged at the center or near the center of the top of the sleeve, one end of the motor shaft part close to the rotor part extends into the first blind hole part, the motor shaft part is in clearance fit with the first blind hole part, the first valve body part comprises a valve body part, the inner bottom of the valve body part is provided with a second blind hole part at a position corresponding to the valve core through hole, one end of the motor shaft component, which is close to the valve core component, extends into the second blind hole part, and the motor shaft component is in clearance fit with the second blind hole part.
The transmission mechanism is a planetary gear and comprises a sun gear and a first gear ring, a second through hole is formed in the sun gear at or near the axial center line, the motor shaft part penetrates through the second through hole, and the motor shaft part is fixedly connected or in limited connection with the sun gear.
The valve core component comprises a valve core and a valve core column, one end of the valve core column is fixedly connected or in limited connection with the first gear ring, the other end of the valve core column is fixed with the valve core or the valve core column and the valve core are of an integrated structure, one part of a through hole of the valve core is located in the valve core column, and the other part of the through hole of the valve core is located in the valve core column.
The valve body assembly further comprises a second valve body component, the first valve body component is fixedly connected with the second valve body component, the accommodating cavity comprises a second valve body component cavity, the second valve body component cavity is located in the second valve body component, the transmission mechanism is at least partially located in the second valve body component cavity, one side, facing the valve core component, of the first gear ring is abutted to the valve core component, and the outer diameter of the abutting contact portion of the valve core component and the first gear ring is smaller than the inner diameter of the first gear ring.
The first gear ring is provided with a central hole, one end of the valve core column extends into the central hole and is fixedly or in limited connection with the first gear ring, the valve core component comprises a platform part, the valve core comprises the platform part, and the valve core column is fixed with the platform part or is integrated with the platform part;
or the valve core column comprises the platform part, and the platform part is fixed with the valve core or the platform part and the valve core are of an integral structure;
one side of the first gear ring, which faces the valve core component, is abutted against the platform part, the outer diameter of the platform part is smaller than the inner diameter of the first gear ring, the valve core further comprises a plane part, and a certain distance is kept between at least one part of one side of the first gear ring, which faces the valve core component, and the plane part of the valve core.
The first gear ring is provided with a stepped hole portion, the stepped hole portion comprises a step portion, one end of the valve stem extends into the stepped hole portion and is fixedly or in limited connection with the first gear ring, the end face portion of the valve stem is abutted to the step portion, the valve core further comprises a plane portion, and a certain distance is kept between at least one part of one side, facing the valve core component, of the first gear ring and the plane portion of the valve core.
At least one limiting column is further arranged on one side, facing the inner bottom corresponding to the first valve body component cavity, of the valve core component, a limiting groove matched with the limiting column is formed in the inner bottom corresponding to the first valve body component cavity, and the limiting column is in sliding fit with the limiting groove.
The valve core component is provided with two limiting columns, the limiting columns are symmetrically arranged on two sides of the axis of the valve core component, each limiting groove comprises two arc-shaped grooves, the two arc-shaped grooves are arranged by taking the second blind hole portion as the center and are in an arc angle of 90 degrees, at least parts of the limiting columns extend into the arc-shaped grooves, and when the inner wall of one end portion of each arc-shaped groove is abutted against the limiting column, the valve core component stops rotating.
The sleeve is fixedly connected with the second valve body part or integrally formed, the valve body part is provided with a port part, one end of the second valve body part is matched with the port part, the end surface part of the port part is also provided with an annular groove, and the annular groove is provided with a sealing gasket;
the transmission mechanism further comprises a planet wheel and a second gear ring, wherein the second gear ring is fixedly connected with the second valve body part on the side back to the planet wheel, or the second gear ring and the second valve body part are integrally formed.
The motor shaft part of the ball valve is fixedly or in limited connection with the rotor part, the valve core part is provided with the valve core through hole, the motor shaft part penetrates through the valve core through hole, the motor shaft part is in clearance fit with the inner wall corresponding to the valve core through hole, one end of the motor shaft part extends out of the valve core part and is limited in the first valve body part, the deviation and the shaking amount of the valve core part in the rotating process can be reduced, and the stability of the valve core part is improved.
Drawings
FIG. 1 is a schematic perspective view of a ball valve according to an embodiment of the present invention;
FIG. 2 is a schematic cross-sectional view of the ball valve of FIG. 1;
FIG. 3 is a perspective view of a rotor member of the ball valve of FIG. 1;
FIG. 4 is a schematic perspective view of a sleeve and a second body member of the ball valve of FIG. 1;
FIG. 5 is a schematic perspective view of a first body member of the ball valve of FIG. 1;
FIG. 6 is a perspective view of a drive mechanism in the ball valve of FIG. 1;
FIG. 7 is a schematic perspective view of a first ring gear of the ball valve of FIG. 1;
FIG. 8 is a schematic perspective view of a core member of the ball valve of FIG. 1;
FIG. 9 is a perspective view of another perspective of the core member of the ball valve of FIG. 1;
FIG. 10 is a perspective view of another perspective of the first body member of the ball valve of FIG. 1;
FIG. 11 is a schematic cross-sectional view of the ball valve in a first operating condition;
FIG. 12 is a schematic cross-sectional view of the ball valve in a second operating condition;
FIG. 13 is a perspective view of the sleeve and second body member from another perspective;
FIG. 14 is a cross-sectional schematic view of the sleeve and valve body assembly.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
One embodiment of the present invention is shown in fig. 1 to 14. The ball valve of this embodiment includes a drive mechanism 10, a valve body assembly 11, a transmission mechanism 12, and a spool member 13. As shown in fig. 2, the driving mechanism 10 includes a stator coil 1, a motor shaft 2, a rotor 3, and a sleeve 8, the motor shaft 2 is fixedly connected to the rotor 3, the rotor 3 rotates to drive the motor shaft 2 to rotate, the sleeve 8 is a tubular body with a closed end, the sleeve 8 is sleeved on the stator coil 1, and at least a part of the rotor 3 is disposed in the sleeve 8.
As shown in fig. 3, the rotor part 3 is provided with a first through hole 55 at or near the axial center line, the motor shaft part 2 passes through the first through hole 55, the motor shaft part 2 and the rotor part 3 are fixedly connected by injection molding, and the motor shaft part 2 and the rotor part 3 may further be provided with a keyway fit, so as to enhance the firmness of the combination of the motor shaft part 2 and the rotor part 3.
The closed end of the sleeve 8 is defined as a top, as shown in fig. 4, a first blind hole portion 82 protruding outward is arranged at the center of the top of the sleeve 8 or near the center, one end of the motor shaft component 2 close to the rotor component 3 extends into the first blind hole portion 82, the motor shaft component 2 is in clearance fit with the first blind hole portion 82, and the first blind hole portion 82 plays a role in limiting the motor shaft component 2.
As shown in fig. 1 and 2, the valve body assembly 11 includes the first valve body part 4 and the second valve body part 6, and when the valve body assembly 11 is made of a plastic material, the sleeve 8 and the second valve body part 6 may be integrally formed through an injection molding process, as shown in fig. 4, so that the sealing between the sleeve 8 and the second valve body part 6 is better. It should be mentioned here that the connection between the sleeve 8 and the second valve body part 6 can also be fixed by means of a connecting socket.
As shown in fig. 5, the first valve body part 4 includes a valve body part 40, one end of the valve body part 40 is open and disposed, the valve body part 40 includes a port part 45, the port part 45 is located at the open end of the valve body part 40, the end defining the opening of the valve body part 40 is a top, the opposite end is a bottom, one end of the second valve body part 6 is matched with the port part 45 and fixed with the valve body part 40 by a bolt connection, and it should be noted here that the second valve body part 6 and the valve body part 40 may also be fixedly connected by other forms such as welding.
The end surface portion of the port portion 45 of the valve body portion 40 is also provided with an annular groove 450, and the annular groove 450 is provided with a gasket, thereby improving the sealability at the junction of the second valve body member 6 and the valve body portion 40. It should be noted here that when the second valve body member 6 is fixed to the valve body portion 40 by welding, a gasket may not be provided.
As shown in fig. 2, the valve body assembly 11 is formed with a receiving cavity, the receiving cavity includes a first valve body component cavity 50, the first valve body component cavity 50 is located in the valve body 40, the valve core component 13 is at least partially received in the first valve body component cavity 50, the receiving cavity further includes a second valve body component cavity 65, the second valve body component cavity 65 is located in the second valve body component 6, and the transmission mechanism 12 is at least partially located in the second valve body component cavity 65.
As shown in fig. 2 and fig. 6, the transmission mechanism 12 is a planetary gear, the transmission mechanism 12 includes a sun gear 20, planet gears 21, a first gear ring 22, a second gear ring 23, a first mounting plate 24, a second mounting plate 25, and a gear shaft 26, in this embodiment, the number of planet gears 21 is three, the number of corresponding gear shafts 26 is also three, the first mounting plate 24 and the second mounting plate 25 may be circular ring structures, the central circular through hole of the first mounting plate facilitates the matching of the motor shaft part 2 and the sun gear 20, the three planet gears 21 are rotatably disposed between the first mounting plate 24 and the second mounting plate 25 through the gear shaft 26, and all three planet gears 21 are meshed with the sun gear 20.
The first gear ring 22 and the second gear ring 23 both have an internal toothing, one end of the planet wheels 21 being in meshing connection with the first gear ring 22 at the internal toothing of the first gear ring 22, and the opposite end of the planet wheels 21 being in meshing connection with the second gear ring 23 at the internal toothing of the second gear ring 23. The second ring gear 23 is fixedly connected to the second body part 6 on the side facing away from the planet gears 2, for example by being mounted to the second body part 6 in an interference or positive-locking manner.
It should be mentioned here that when the second valve body part 6 and the second ring gear 23 are both made of a plastic material, the second ring gear 23 can be formed integrally with the second valve body part 6, for example by means of an injection moulding process, which reduces the number of parts of the ball valve and makes assembly more convenient.
Motor shaft part 2 is connected with drive mechanism 12 transmission, and sun gear 20 is provided with second through hole 56 near axial centerline or axial centerline, and motor shaft part 2 passes second through hole 56, and motor shaft part 2 can be connected through interference crimping or block with sun gear 20, and when motor shaft part 2 rotated, sun gear 20 rotated in step, and then drove the planet wheel and the ring gear rotates. At the same transmission ratio, the transmission mechanism has a relatively compact structure and small volume, so that the volume of the ball valve is relatively reduced.
As shown in fig. 7, the first gear ring 22 has a central hole 220, as shown in fig. 8, the valve core part 13 includes the valve core 130 and the valve stem 30, one end of the valve stem 30 extends into the central hole 220, and is pressed by interference or the central hole 220 may be configured in a special shape, and accordingly the shape of the valve stem 30 is matched to achieve rotation driving, that is, the valve stem 30 is matched with the first gear ring 22 to achieve rotation of the valve stem 30 driven by the first gear ring 22. The opposite end of the valve stem 30 is in transmission connection with the valve core 130 or the valve stem 30 and the valve core 130 are integrated, so that when the valve stem 30 rotates, the valve core 130 can be driven to rotate together.
It should be noted here that the valve core 130 may also be provided with a clamping groove, and the valve core column 30 is matched with the clamping groove to realize the rotation driving. In the present embodiment, the stem 30 and the valve body 130 are integrally configured.
It should also be noted here that the valve core 130 may be of a general shape such as spherical, cylindrical, and elliptical.
It should also be mentioned here that the transmission mechanism can also be implemented in other conventional transmission ways, for example, in a multi-stage gear transmission.
As shown in fig. 8 and 2, the spool 130 includes a land portion 131, the spool 30 is fixed to the land portion 131 or the spool 30 and the land portion 131 are integrated, or the spool 30 includes a land portion 131, the land portion 131 is fixed to the spool 130 or the land portion 131 and the spool 130 are integrated. The side of the first ring gear 22 facing the spool member 13 abuts the land portion 131, and the outer diameter L1 of the land portion 131 is smaller than the inner diameter L2 of the first ring gear 22, thereby reducing the driving force required to drive the spool member 13.
It should be noted here that in the present embodiment, the transmission mechanism 12 is in direct contact with the valve core part 13, that is, the side of the first gear ring 22 facing the valve core part 13 is in contact with the platform part 131, so that the valve cover of the first valve body part 4 is omitted, the parts of the ball valve are reduced, the structure of the ball valve is relatively more compact, and the volume of the ball valve is reduced.
It should also be noted here that the central hole 220 of the first gear ring 22 may also be configured as a stepped hole portion including a stepped portion, the valve stem 30 extends into the stepped hole portion, the end surface portion of the valve stem 30 abuts against the stepped portion, and the side of the first gear ring 22 facing the valve core member 13 does not contact with the platform portion 131, and this configuration makes the diameter of the contact surface of the first gear ring 22 and the valve core member 13 smaller, which is more favorable for reducing the driving force required for driving the valve core member 13.
As shown in fig. 8, the spool 130 is further provided with a flat portion 132 on the side facing the first ring gear 22, the flat portion 132 is provided around the land portion 131, and the land portion 131 protrudes from the flat portion 132 in the direction facing the first ring gear 22, and as shown in fig. 2, at least a portion of the side of the first ring gear 22 facing the spool member 13 is kept at a distance from the flat portion 132. It should be noted here that the flat surface portion 132 may be provided as a curved surface portion, a tapered surface portion, or the like.
As shown in fig. 8, the spool member 13 is provided with a spool through hole 57 at or near the axial center line, and a part of the spool through hole 57 is located in the spool 30 and a part is located in the spool 130. The motor shaft part 2 passes through the valve core through hole 57, and the motor shaft part 2 is in clearance fit with the inner wall corresponding to the valve core through hole 57, where it should be described that the motor shaft part 2 cannot directly drive the valve core part 13 to rotate when rotating, and the first gear ring 22 can drive the valve core part 13 to rotate the motor shaft part of the motor shaft part.
Motor shaft part as shown in fig. 10, the motor shaft part 40 further includes an inner bottom portion 47, the inner bottom portion 47 is provided with a second blind hole portion 49 at a position corresponding to the valve core through hole 57, the axis of the second blind hole portion 49 coincides with or approximately coincides with the axis of the first blind hole portion 82, one end of the motor shaft part 2 close to the valve core part 13 extends into the second blind hole portion 49, the motor shaft part 2 is in clearance fit with the second blind hole portion 49, and the second blind hole portion 49 plays a limiting role for the motor shaft part 2.
In the present embodiment, the motor shaft component 2 sequentially passes through the rotor component 3, the sun gear 20 and the valve core component 13, one end of the motor shaft component 2 is limited in the first blind hole portion 82, the other opposite end is limited in the second blind hole portion 49, and the motor shaft component 2 is in clearance fit with the valve core component 13, so that the deflection and shaking amount of the valve core component 13 in the rotation process can be reduced, and the stability of the valve core component 13 is improved.
As shown in fig. 9, the valve core part 13 is further provided with at least one position-limiting column 31 on one side facing the inner bottom 47, in this embodiment, two position-limiting columns 31 are provided, the position-limiting columns 31 are symmetrically arranged on two sides of the axis of the valve core part 13, and the two position-limiting columns 31 may be integrated with the valve core part 13.
As shown in fig. 10, the inner bottom 47 of the valve body 40 is provided with a limiting groove matched with the limiting post 31, the limiting post 31 is in sliding fit with the limiting groove, the limiting groove comprises at least one arc-shaped groove 32, in this embodiment, the limiting groove comprises two arc-shaped grooves 32, and the two arc-shaped grooves 32 are symmetrically distributed by taking the second blind hole part 49 as a center.
At least part of gag post 31 stretches into arc recess 32, sliding fit between the inner wall of arc recess 32 and the gag post 31, it is spacing through the inner wall cooperation with arc recess 32, the rotation range of case part 13 can be restricted to the both ends of arc recess 32, when case part 13 clockwise rotates, when one of them tip inner wall of arc recess 32 and gag post 31 looks butt, case part 13 stall in clockwise, the rotation range of case part 13 can be restricted to the arc angle size between the arc recess 32 both ends under the general condition, in this embodiment, the arc angle of arc recess 32 is established to 90, here should know, in different operational environment, the arc angle can the adaptability set up.
The working principle is as follows: when the motor shaft part 2 rotates clockwise, the sun gear 20 is driven to rotate clockwise, the planet gear 21 is driven to rotate through meshing connection, the second gear ring 23 is fixed, the planet gear 21 rotates around the axis of the planet gear 21, meanwhile, the sun gear 1 also rotates circumferentially, namely, the motor shaft part 2 rotates around the center, and is meshed with the second gear ring 23 to rotate, so that the first gear ring 22 is driven to rotate, the first gear ring 22 drives the valve core column 30 to rotate together, meanwhile, the valve core column 30 drives the valve core 130 to rotate, the rotation angle is 0-90 degrees, when the inner wall of one end part of the arc-shaped groove 32 is abutted to the limiting column 31, the valve core part 13 stops rotating in the rotating direction, and the motor shaft part 2 rotates counterclockwise similarly, which is not described in detail.
As shown in fig. 5, the valve body 40 further has a first opening 401, a second opening 402, a third opening 403, and a fourth opening 404, and the first opening 401, the second opening 402, the third opening 403, and the fourth opening 404 are arranged on the circumferential side of the valve body 40 in the order of clockwise or counterclockwise and are arranged symmetrically with respect to the center of the valve body 40.
The first valve body part 4 further includes a first interface part 41, a second interface part 42, a third interface part 43 and a fourth interface part 44, as shown in fig. 11, the first interface part 41 is provided with a first channel 71, the second interface part 42 is provided with a second channel 72, the third interface part 43 is provided with a third channel 73, the fourth interface part 44 is provided with a fourth channel 74, one end of the first interface part 41 is fixedly connected with and sealed at the first opening part 401, one end of the second interface part 42 is fixedly connected with and sealed at the second opening part 402, one end of the third interface part 43 is fixedly connected with and sealed at the third opening part 403, and one end of the fourth interface part 44 is fixedly connected with and sealed at the fourth opening part 404.
As shown in fig. 11, the spool 130 is internally provided with a first spool passage 14 and a second spool passage 15, and the ball valve of the present invention includes at least two working states: a first operating state in which, as shown in fig. 11, the first passage 71 communicates with the second passage 72 through the first spool passage 14, and the third passage 73 communicates with the fourth passage 74 through the second spool passage 15; in the second operating state, as shown in fig. 12, the first passage 71 communicates with the fourth passage 74 through the first spool passage 14, and the second passage 72 communicates with the third passage 73 through the second spool passage 15.
As shown in fig. 5, a first protruding portion 411 is provided on the inner circumferential wall of the valve body portion 40 near the side of the first opening portion 401 close to the inner bottom portion 47, the first protruding portion 411 protrudes inward relative to the inner circumferential wall of the valve body portion 40, one end of the first protruding portion 411 away from the first opening portion 401 extends to the inner bottom portion 47, a first arc portion 412 is formed at one end of the first protruding portion 411 close to the first opening portion 401, and the first arc portion 412 is located below the first opening portion 401. The central axis corresponding to the first arc portion 412 coincides or approximately coincides with the central axis of the first opening portion 401, the size of the central angle corresponding to the first arc portion 412 is not specifically limited here, and in the present embodiment, the central angle corresponding to the first arc portion 412 is 180 °, which is advantageous for the demolding process during injection molding of the valve body portion 40.
As shown in fig. 13, the second valve body member 6 is provided with a second protruding portion 511 on a side facing the valve body portion 40, the second protruding portion 511 is disposed opposite to the first protruding portion 411, the second protruding portion 511 is located on an upper portion of the first protruding portion 411, one end of the second protruding portion 511 close to the first opening portion 401 is formed with a second arc portion 512, the second arc portion 512 is disposed opposite to the first arc portion 412, a central axis corresponding to the second arc portion 512 is coincident with or approximately coincident with a central axis of the first opening portion 401, a size of a central angle corresponding to the second arc portion 512 is not specifically limited here, and in the present embodiment, the central angle corresponding to the second arc portion 512 is 180 °. As shown in fig. 14, the first circular arc portion 412 and the second circular arc portion 512 cooperate to form a cylindrical space 60.
As shown in fig. 2, the ball valve further includes a sealing ring 90 disposed in the space 60, the sealing ring 90 is limited to the first arc portion 412 and the second arc portion 512, an inner diameter of the sealing ring 90 is larger than a diameter of the first channel and is also larger than a diameter of the channel inside the valve core member 13, one end of the sealing ring 90 abuts against the inner wall corresponding to the valve body portion 40, the opposite end of the sealing ring 90 abuts against the outer wall corresponding to the valve core member 13, and the sealing ring 90 is further pressed against and abutted against the first arc portion 412 and the second arc portion 512.
In the prior art, in order to install the sealing ring, the first opening part and the first valve body part are separated, the sealing ring is installed at the joint of the first opening part and the first valve body part, the sealing ring needs to be installed in the first valve body part firstly, then the first opening part and the first valve body part are fixed in a welding mode, a screwing mode and the like, and the direction of installing the valve core part in the first valve body part is inconsistent with the direction of installing the sealing ring in the first valve body part. In this embodiment, the first arc portion 412 and the second arc portion 512 are matched to limit the sealing ring 90, the first protruding portion 411 and the second protruding portion 511 are arranged on the valve body portion 40, so that the sealing ring 90 is easy to assemble, the valve core portion 13 and the sealing ring 90 are both the first valve body portion installed from the port portion 45, and the installation of parts is simple.
The ball valve is formed with cylindrical spaces in the second opening 402, the third opening 403 and the fourth opening 404 in the same or similar manner, and is provided with sealing rings, which are not described in detail herein.
As shown in fig. 5, the inner peripheral wall of the valve body 40 is further provided with a third protruding portion 46 between the first opening portion 401 and the second opening portion 402, the third protruding portion 46 extends from the inner bottom 47 of the valve body 40 to the top of the valve body 40, in the present embodiment, one side of the third protruding portion 46 is smoothly connected or approximately smoothly connected with the first protruding portion 411 corresponding to the first opening portion 401, and the opposite side of the third protruding portion 46 is smoothly connected or approximately smoothly connected with the first protruding portion 411 corresponding to the second opening portion 402. At least one part of the third protrusion 46 is located between the two second protrusions 511, and the second protrusion 511 is limited between the two third protrusions 46, so that the matching precision of the second protrusion 511 and the first protrusion 411 can be improved.
The third protruding portion 46 is provided with first protruding and recessed portions 461 at two sides of one end close to the top of the valve body portion 40, the second protruding portion 511 is provided with second protruding and recessed portions 513 at the positions corresponding to the first protruding and recessed portions 461, and the first protruding and recessed portions 461 and the second protruding and recessed portions 513 are matched, so that the second valve body member 6 and the valve body portion 40 can be combined more firmly.
The thickness of the third protrusion 46 between the two second protrusions 511 is smaller than that of the first protrusion 411, and a shoulder 460 is formed at the junction of the portion of the third protrusion 46 with the smaller thickness and the portion with the larger thickness. The second valve body part 6 is further provided with a fourth projecting portion 48 between the two second projecting portions 511, and both sides of the fourth projecting portion 48 are smoothly connected or nearly smoothly connected with the second projecting portions 511. The fourth protruding portion 48 is disposed opposite to the shoulder 460, and one end of the fourth protruding portion 48 facing the valve body portion 40 abuts against the shoulder 460, so as to limit the second valve body member 6.
Between the second opening 402 and the third opening 403, between the third opening 403 and the fourth opening 404, and between the fourth opening 404 and the first opening 401, a third convex portion and a convex-concave portion of the third convex portion are provided in the same or similar manner, and the second valve body member 6 is also provided with corresponding convex-concave portions in the same or similar manner, which is not described in detail herein.
It should be noted that: although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will understand that modifications and equivalents may be made thereto without departing from the spirit and scope of the invention, and all such modifications and improvements are intended to be included within the scope of the following claims.

Claims (10)

1. A ball valve comprises a driving mechanism, a transmission mechanism, a valve body assembly and a valve core component, wherein the driving mechanism is driven to act through the action of the driving mechanism, and the valve core component is driven to act through the action of the transmission mechanism;
the valve body assembly comprises a first valve body part, an accommodating cavity is formed in the valve body assembly, the accommodating cavity comprises a first valve body part cavity, the first valve body part cavity is located in the first valve body part, at least part of the valve core part is accommodated in the first valve body part cavity, a valve core through hole is formed in the valve core part, the motor shaft part penetrates through the valve core through hole and is in clearance fit with the inner wall corresponding to the valve core through hole, and one end of the motor shaft part extends out of the valve core part and is limited to the first valve body part; the motor shaft part sequentially penetrates through the rotor part and the valve core part.
2. The ball valve according to claim 1, wherein the rotor member is disposed in a sleeve, the rotor member is provided with a first through hole, one end of the motor shaft member passes through the first through hole and is limited by the sleeve, the sleeve comprises a tubular body with one end closed, the first valve body member comprises a valve body portion, the inner bottom of the valve body portion is provided with a second blind hole portion at a position corresponding to the valve core through hole, one end of the motor shaft member close to the valve core member extends into the second blind hole portion, and the motor shaft member is in clearance fit with the second blind hole portion.
3. The ball valve according to claim 2, wherein the transmission mechanism is a planetary gear, the transmission mechanism includes a sun gear and a first ring gear, the sun gear is provided with a second through hole at or near an axial center line, the motor shaft part passes through the second through hole, and the motor shaft part is fixedly connected or in limited connection with the sun gear.
4. The ball valve according to claim 3, wherein the valve core component comprises a valve core and a valve core column, one end of the valve core column is fixedly or limitedly connected with the first gear ring, the other end of the valve core column is fixed with the valve core or the valve core column and the valve core are integrated, and a part of the through hole of the valve core is located in the valve core column and a part of the through hole of the valve core is located in the valve core.
5. The ball valve according to claim 3 or 4, wherein the valve body assembly further comprises a second valve body part, the first valve body part is fixedly connected with the second valve body part, the accommodating cavity comprises a second valve body part cavity, the second valve body part cavity is positioned in the second valve body part, the transmission mechanism is at least partially positioned in the second valve body part cavity, one side of the first gear ring facing the valve core part is abutted with the valve core part, and the outer diameter of the abutting part of the valve core part and the first gear ring is smaller than the inner diameter of the first gear ring.
6. The ball valve according to claim 5, wherein the first gear ring has a central hole, one end of the valve stem extends into the central hole and is fixedly or limitedly connected with the first gear ring, the valve core part comprises a platform part, the valve core comprises the platform part, and the valve stem is fixed with the platform part or is of an integral structure;
or the valve core column comprises the platform part, and the platform part is fixed with the valve core or the platform part and the valve core are of an integral structure;
one side of the first gear ring, which faces the valve core component, is abutted against the platform part, the outer diameter of the platform part is smaller than the inner diameter of the first gear ring, the valve core further comprises a plane part, and a certain distance is kept between at least one part of one side of the first gear ring, which faces the valve core component, and the plane part of the valve core.
7. The ball valve according to claim 5, wherein the first ring gear has a stepped hole portion including a stepped portion into which one end of the valve stem protrudes and is fixed or position-limited to the first ring gear, wherein an end surface portion of the valve stem abuts against the stepped portion, wherein the valve element further includes a flat portion, and wherein at least a portion of a side of the first ring gear facing the valve element member is spaced apart from the flat portion of the valve element.
8. The ball valve according to claim 6 or 7, wherein the valve core part is further provided with at least one limiting column at a side facing the inner bottom corresponding to the first valve body part cavity, the inner bottom corresponding to the first valve body part cavity is provided with a limiting groove matched with the limiting column, and the limiting column is in sliding fit with the limiting groove.
9. The ball valve according to claim 8, wherein the valve core member is provided with two limiting columns, the limiting columns are symmetrically arranged on two sides of the axis of the valve core member, the limiting grooves comprise two arc-shaped grooves, the two arc-shaped grooves are arranged by taking the second blind hole portion as a center and forming an arc angle of 90 degrees, the limiting columns at least partially extend into the arc-shaped grooves, and when the inner wall of one end portion of the arc-shaped grooves abuts against the limiting columns, the valve core member stops rotating.
10. The ball valve according to claim 9, wherein the sleeve is fixedly connected to or integrally formed with the second body member, the body member having a port portion with which one end of the second body member is fitted, an end surface portion of the port portion being further provided with an annular groove provided with a gasket;
the transmission mechanism further comprises a planet wheel and a second gear ring, wherein the second gear ring is fixedly connected with the second valve body component on one side back to the planet wheel, or the second gear ring and the second valve body component are integrally formed.
CN201811582853.5A 2018-12-24 2018-12-24 Ball valve Active CN111350844B (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
CN201811582853.5A CN111350844B (en) 2018-12-24 2018-12-24 Ball valve
US17/309,299 US11384852B2 (en) 2018-12-24 2019-11-06 Ball valve
JP2021526810A JP7228694B2 (en) 2018-12-24 2019-11-06 Ball valve
PCT/CN2019/115843 WO2020134613A1 (en) 2018-12-24 2019-11-06 Ball valve
EP19902051.2A EP3904736A4 (en) 2018-12-24 2019-11-06 BALL VALVE

Applications Claiming Priority (1)

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CN201811582853.5A CN111350844B (en) 2018-12-24 2018-12-24 Ball valve

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CN111350844B true CN111350844B (en) 2022-09-23

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Publication number Priority date Publication date Assignee Title
CN115076435B (en) * 2021-03-12 2023-10-20 浙江三花汽车零部件有限公司 Electric valve
CN116220611B (en) * 2023-02-06 2023-09-01 江苏苏盐阀门机械有限公司 Corrosion-proof oil well valve

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4029292A (en) * 1976-04-06 1977-06-14 Eisenbahn-Verkehrsmittel Ag Globe valve construction
JPS5947574A (en) * 1982-09-08 1984-03-17 Tlv Co Ltd Multidirection ball valve
US5507314A (en) * 1991-06-11 1996-04-16 Masco Corporation Mixer valve having a ball valve element
US6254058B1 (en) * 2000-04-25 2001-07-03 Eaton Corporation Spring returning a rotary valve with a differential planetary drive
DE102009051324B4 (en) * 2009-10-29 2018-07-26 Marco Systemanalyse Und Entwicklung Gmbh Selector valve
DE102015210157B4 (en) * 2014-06-04 2021-12-23 Schaeffler Technologies AG & Co. KG Multi-chamber rotary valve module for heat management
CN206958295U (en) * 2017-04-17 2018-02-02 浙江三花汽车零部件有限公司 A kind of ball valve
CN207049360U (en) * 2017-04-17 2018-02-27 浙江三花汽车零部件有限公司 A kind of ball valve

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