CN118531864A - Automatic lubrication control system and control method for gear pair of hydraulic excavator slewing mechanism - Google Patents
Automatic lubrication control system and control method for gear pair of hydraulic excavator slewing mechanism Download PDFInfo
- Publication number
- CN118531864A CN118531864A CN202410689701.4A CN202410689701A CN118531864A CN 118531864 A CN118531864 A CN 118531864A CN 202410689701 A CN202410689701 A CN 202410689701A CN 118531864 A CN118531864 A CN 118531864A
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- Prior art keywords
- gear pair
- hydraulic
- hydraulic main
- lubrication
- lubricating
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/08—Superstructures; Supports for superstructures
- E02F9/10—Supports for movable superstructures mounted on travelling or walking gears or on other superstructures
- E02F9/12—Slewing or traversing gears
- E02F9/121—Turntables, i.e. structure rotatable about 360°
- E02F9/126—Lubrication systems
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2025—Particular purposes of control systems not otherwise provided for
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/2058—Electric or electro-mechanical or mechanical control devices of vehicle sub-units
- E02F9/2095—Control of electric, electro-mechanical or mechanical equipment not otherwise provided for, e.g. ventilators, electro-driven fans
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F9/00—Component parts of dredgers or soil-shifting machines, not restricted to one of the kinds covered by groups E02F3/00 - E02F7/00
- E02F9/20—Drives; Control devices
- E02F9/22—Hydraulic or pneumatic drives
- E02F9/2264—Arrangements or adaptations of elements for hydraulic drives
- E02F9/2267—Valves or distributors
-
- 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
- F16N—LUBRICATING
- F16N23/00—Special adaptations of check 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
- F16N—LUBRICATING
- F16N7/00—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated
- F16N7/38—Arrangements for supplying oil or unspecified lubricant from a stationary reservoir or the equivalent in or on the machine or member to be lubricated with a separate pump; Central lubrication systems
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Mechanical Engineering (AREA)
- General Details Of Gearings (AREA)
Abstract
本发明公开一种液压挖掘机回转机构齿轮副自动润滑控制系统，包括：显示器、控制器、发动机、液压主泵、液压油箱、液压主阀、回转马达、齿轮副润滑区、操纵手柄、电比例控制阀、润滑油加注器、润滑油脂存储器，显示器、发动机、液压主泵、操纵手柄、电比例控制阀与控制器电连接，发动机与液压主泵机械连接，为液压主泵提供动力，所述液压主泵进油口通过管路与液压油箱连接，液压主泵出油口通过管路分别与电比例控制阀、液压主阀连接；通过控制方法精准控制既保证了齿轮副的润滑，延长了齿轮的使用寿命，又减少了润滑油脂的浪费，也防止了润滑油脂滴落到地面，避免了润滑油脂对环境造成污染。The invention discloses an automatic lubrication control system for a gear pair of a slewing mechanism of a hydraulic excavator, comprising: a display, a controller, an engine, a hydraulic main pump, a hydraulic oil tank, a hydraulic main valve, a slewing motor, a gear pair lubrication area, an operating handle, an electric proportional control valve, a lubricating oil filler, and a lubricating grease storage device. The display, the engine, the hydraulic main pump, the operating handle, the electric proportional control valve and the controller are electrically connected, the engine is mechanically connected to the hydraulic main pump to provide power for the hydraulic main pump, the oil inlet of the hydraulic main pump is connected to the hydraulic oil tank through a pipeline, and the oil outlet of the hydraulic main pump is respectively connected to the electric proportional control valve and the hydraulic main valve through pipelines; accurate control through the control method not only ensures the lubrication of the gear pair and prolongs the service life of the gear, but also reduces the waste of lubricating grease, and prevents the lubricating grease from dripping onto the ground, thereby avoiding the pollution of the environment by the lubricating grease.
Description
Technical Field
The invention relates to the field of filling of friction pair lubricating oil of a hydraulic excavator, in particular to an automatic lubrication control system and a control method for a gear pair of a slewing mechanism of the hydraulic excavator.
Background
The hydraulic excavator has the function of 360-degree rotation of the upper carriage, and the inner teeth of the slewing bearing are driven by the output gear of the slewing motor, so that 360-degree rotation of the upper carriage of the excavator is realized, and the operations of digging, loading, unloading and the like of a user are met; the output gear of the rotary motor is meshed with the internal gear of the rotary support, abrasion can be generated, and the service life is shortened, so that lubricating grease needs to be filled for lubrication to reduce the abrasion, and the service life of the gear is prolonged.
The patent number 202311321942.5 discloses that two machining plates are added on the basis of a lubricating oil pool commonly used in industry, a cavity is formed by the two machining plates, a platform base, a slewing bearing, a sealing plate and the like, the sealing performance of the lubricating oil pool is enhanced, an output gear of a slewing motor lubricates a gear pair through stirring lubricating grease filled in the oil pool in advance, but the amount of the lubricating grease in the oil pool is large, and a lot of lubricating grease is still not effectively applied to the gear pair, so that a large amount of lubricating grease is wasted.
The existing slewing mechanism is filled with lubricating grease in a lubricating oil pool in advance, the filling amount is large, grease can be changed without being used for a long time, all the grease needs to be replaced, waste is caused, and otherwise the lubricating effect on the gear pair is reduced.
Disclosure of Invention
The invention provides an automatic lubrication control system and a control method for a gear pair of a hydraulic excavator rotation mechanism, wherein the automatic lubrication control system comprises a controller, a control handle signal of a rotation motor is operated to judge and identify whether a driving rotation mechanism of the excavator is activated or not so as to judge whether the rotation mechanism gear needs to be lubricated, and the filling amount of lubricating grease is related to the mode selection of the hydraulic excavator; if the machine hand selects an economic mode, the controller sends a set electric signal to the electric proportional control valve, so that the electric proportional control valve realizes a proper opening, and pressure oil reaches the lubricating oil filler through the proportional control valve to lubricate the gear pair of the rotary mechanism with relatively economic filling quantity.
In order to achieve the above purpose, the technical scheme adopted by the invention is as follows: an automatic lubrication control system for a gear pair of a swing mechanism of a hydraulic excavator, comprising: the display, the engine, the hydraulic main pump, the hydraulic oil tank, the hydraulic main valve, the rotary motor, the gear pair lubrication area, the control handle, the electric proportional control valve, the lubricating oil filling device and the lubricating grease storage device are electrically connected with the controller, the engine is mechanically connected with the hydraulic main pump to provide power for the hydraulic main pump, an oil inlet of the hydraulic main pump is connected with a hydraulic oil tank through a pipeline, and an oil outlet of the hydraulic main pump is respectively connected with the electric proportional control valve and the hydraulic main valve through pipelines;
The oil outlet of the electric proportional control valve is connected with the lubricating oil filling device through a pipeline to control the lubricating oil filling device to carry out oiling work, the lubricating oil filling device is communicated with a lubricating area of the gear pair through a pipeline, and the oil outlet of the lubricating grease storage is connected with the lubricating oil filling device through a pipeline to provide lubricating grease for the lubricating grease storage;
The output oil port of the hydraulic main valve is connected with the rotary motor through a pipeline to control the rotary motor to work, the control oil port of the hydraulic main valve is connected with the control handle through a pipeline to control the switching of the hydraulic main valve through the control handle so as to control the rotation direction of the rotary motor, the controller is an ECU, the output shaft of the rotary motor is connected with a gear pair of the rotary mechanism to control the rotary mechanism to work, and the electric proportional control valve and the oil return port of the hydraulic main valve are connected with the hydraulic oil tank through pipelines.
Further, the lubricating oil pool in the slewing mechanism is used for storing the lubricating grease injected by the lubricating oil injector.
Further, the gear pair lubrication area is located above the gear cavity of the gear pair of the slewing mechanism.
According to actual needs, the automatic mode of the control system is selected to lubricate the gear pair, if not needed, the function can be manually closed; the automatic lubrication is controlled as follows: the method comprises the steps that signals for collecting and operating the slewing mechanism are transmitted to a controller, the controller sends instructions to an electric proportional control valve according to a working mode selected by a manipulator, pressure oil provided by a hydraulic main pump is transmitted to a lubricating oil filling device at the moment, a piston of the lubricating oil filling device is pushed, proper lubricating grease is filled into a gear pair of the slewing mechanism, the gear pair is fully lubricated, and working condition requirements are met; when the lubricating grease stored in the lubricating oil pool is suitable for gear pair lubrication, the automatic lubrication function is cut off.
Further, the specific method is as follows:
(1) Before the whole excavator is started, the electric proportional control valve is in a power-off state, a machine hand fills the lubricating grease storage with lubricating grease, the lubricating grease is filled into the lubricating grease filling device through a pipeline after being pressurized, and the whole excavator is waited for starting;
(2) Deactivating the automatic lubrication switch and the operating mode via the display: in a heavy load mode or an economic mode, when a manipulator operates the control handle, an electric signal is sent to the controller, meanwhile, the hydraulic main valve is controlled to be reversed, the engine drives the hydraulic main pump to work, the pressure provided by the hydraulic main pump is sent to the rotary motor through the hydraulic main valve, the rotary motor works, and the output gear of the rotary motor is meshed with the gear pair of the rotary mechanism to drive the excavator to get on the truck to rotate;
(3) When the upper vehicle rotates, the controller receives an electric signal of the control handle, judges that the upper vehicle rotating action is activated, controls the electric proportional control valve to work according to a working mode command signal sent by the display, and the hydraulic main pump provides pressure oil to be conveyed to the lubricating oil filling device through the electric proportional control valve to push the piston of the lubricating oil filling device to fill lubricating grease into a lubricating area of the gear pair, so that the gear pair of the rotating mechanism is fully lubricated;
(4) When the lubricating grease stored in the lubricating oil pool of the slewing mechanism is suitable for gear pair lubrication, the automatic lubrication function is manually cut off, the controller does not send an instruction to the electric proportional control valve, and the lubricating oil filling device does not work.
The beneficial effects of the invention are as follows:
(1) According to the requirements of the hydraulic excavator on the rotation action, the gear pair of the rotation mechanism is automatically lubricated, when the hydraulic excavator is not operated, the filling of lubricating grease is stopped, a small amount of lubricating grease still adheres to the tooth surface at the moment, the tooth surface is protected, the timely and proper accurate filling of the lubricating grease can be realized, the effective lubrication effect is achieved, and the waste of the lubricating grease is reduced;
(2) The controller recognizes a working mode according to working conditions by detecting a rotation operation signal of the hydraulic excavator, sends an instruction to the electric proportional control valve, pushes the lubricating oil filling device through the opening size of the electric proportional control valve, and automatically fills lubricating grease along with rotation of a rotation mechanism gear;
(3) Automatically filling lubricating grease by detecting a rotation operation signal of the hydraulic excavator, and if the rotation is not operated, sending a command by the controller without the power supply proportion control valve, and stopping the lubricating oil filling device from providing lubricating oil for a gear pair of the rotation mechanism;
(4) The original lubricating oil pool of the whole machine is reserved, lubricating grease does not need to be filled in advance, the lubricating grease is only used for storing the lubricating grease which is dripped from the lubricating gear pair, and when the accumulated height of the lubricating grease is suitable for the gear pair lubrication, the automatic lubrication function is manually cut off; through the precise control, the lubrication of the gear pair is ensured, the service life of the gear is prolonged, the waste of lubricating grease is reduced, the lubricating grease is prevented from dripping on the ground, and the pollution of the lubricating grease to the environment is avoided.
Drawings
FIG. 1 is a schematic view of an electro-hydraulic control architecture of the present invention;
FIG. 2 is a schematic diagram of the structure of the present invention;
In the figure: 1. a display; 2. a controller; 3. an engine; 4. a hydraulic main pump; 5. a hydraulic oil tank; 6. a hydraulic main valve; 7. a rotary motor; 8. a gear pair lubrication area; 9. a manipulation handle; 10. an electric proportional control valve; 11. a lubricant filler; 12. and a lubricating grease storage.
Detailed Description
The present invention will be further described in detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the detailed description and specific examples, while indicating the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention.
Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the terms used herein in this description of the invention are for the purpose of describing particular embodiments only and are not intended to be limiting of the invention.
As shown in fig. 1-2, an automatic lubrication control system for a swing mechanism gear pair of a hydraulic excavator includes: the hydraulic oil pump comprises a display 1, a controller 2, an engine 3, a hydraulic main pump 4, a hydraulic oil tank 5, a hydraulic main valve 6, a rotary motor 7, a gear pair lubrication area 8, a control handle 9, an electric proportional control valve 10, a lubricating oil filler 11 and a lubricating grease storage 12, wherein the display 1, the engine 3, the hydraulic main pump 4, the control handle 9 and the electric proportional control valve 10 are electrically connected with the controller 2, the engine 3 is mechanically connected with the hydraulic main pump 4 and provides power for the hydraulic main pump 4, an oil inlet of the hydraulic main pump 4 is connected with the hydraulic oil tank 5 through a pipeline, and an oil outlet of the hydraulic main pump 4 is respectively connected with the electric proportional control valve 10 and the hydraulic main valve 6 through pipelines;
The oil outlet of the electric proportional control valve 10 is connected with the lubricating oil filling device 11 through a pipeline, the lubricating oil filling device 11 is controlled to perform oiling work, the lubricating oil filling device 11 is communicated with the gear pair lubricating area 8 through a pipeline, and the oil outlet of the lubricating grease storage 12 is connected with the lubricating oil filling device 11 through a pipeline, so as to provide lubricating grease for the lubricating grease storage 12;
The output oil port of the hydraulic main valve 6 is connected with the rotary motor 7 through a pipeline to control the rotary motor 7 to work, the control oil port of the hydraulic main valve 6 is connected with the control handle 9 through a pipeline to control the switching of the hydraulic main valve 6 through the control handle 9 so as to control the rotation direction of the rotary motor 7, the controller 2 is an ECU, the output shaft of the rotary motor 7 is connected with a gear pair of a rotary mechanism to control the rotary mechanism to work, and the electric proportional control valve 10 and the oil return port of the hydraulic main valve 6 are connected with the hydraulic oil tank 5 through pipelines.
And a lubricating oil pool in the rotary mechanism is used for storing lubricating grease injected by the lubricating oil injector 11, and the gear pair lubricating area 8 is positioned above a gear cavity of a gear pair of the rotary mechanism.
According to actual needs, the automatic mode of the control system is selected to lubricate the gear pair, if not needed, the function can be manually closed; the automatic lubrication is controlled as follows: the method comprises the steps that signals for collecting and operating the slewing mechanism are transmitted to a controller 2, the controller 2 sends instructions to an electric proportional control valve 10 according to a working mode selected by a manipulator, pressure oil provided by a hydraulic main pump 4 is transmitted to a lubricating oil injector 11 at the moment, a piston of the lubricating oil injector 11 is pushed, proper lubricating grease is injected into a gear pair of the slewing mechanism, the gear pair is fully lubricated, and working condition requirements are met; when the lubricating grease stored in the lubricating oil pool is suitable for gear pair lubrication, the automatic lubrication function is cut off.
The specific method comprises the following steps:
(1) Before the whole excavator is started, the electric proportional control valve 10 is in a power-off state, a machine operator fills the lubricating grease storage with lubricating grease, and fills the lubricating grease into the lubricating grease filling device 11 through a pipeline after pressurizing, and waits for the starting of the standby whole excavator;
(2) Deactivation of the automatic lubrication switch and the operation mode by means of the display 1: in a heavy-load mode or an economic mode, when a manipulator operates the control handle 9, an electric signal is sent to the controller 2, meanwhile, the hydraulic main valve 6 is controlled to be reversed, the engine 3 drives the hydraulic main pump 4 to work, the pressure provided by the hydraulic main pump 4 is sent to the rotary motor 7 through the hydraulic main valve 6, the rotary motor 7 works, and the output gear of the rotary motor 7 is meshed with a gear pair of the rotary mechanism to drive the excavator to get on the car to rotate;
(3) When the upper vehicle rotates, the controller 2 receives an electric signal of the control handle 9, judges that the upper vehicle rotating action is activated, controls the electric proportional control valve 10 to work according to a working mode command signal sent by the display 1, and the hydraulic main pump 4 provides pressure oil to be conveyed to the lubricating oil filler 11 through the electric proportional control valve 10 to push the piston of the lubricating oil filler 11 to fill lubricating grease into the gear pair lubricating area 8 so as to fully lubricate the gear pair of the rotating mechanism;
(4) When the lubricating grease stored in the lubricating oil pool of the slewing mechanism is suitable for gear pair lubrication, the automatic lubrication function is manually cut off, the controller 2 does not send a command to the electric proportional control valve 10, and the lubricating oil filler 11 does not work.
Because the gear pair of the slewing mechanism is in a closed space, in order to ensure that a certain amount of lubricating grease can be fully injected into the slewing mechanism, an exhaust device is further arranged on the slewing mechanism, and the slewing mechanism is a pressure relief valve in the example.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, or alternatives falling within the spirit and principles of the invention.
Claims (7)
1. The utility model provides a hydraulic shovel swing mechanism gear pair automatic lubrication control system which characterized in that includes: the hydraulic oil pump comprises a display, a controller, an engine, a hydraulic main pump, a hydraulic oil tank, a hydraulic main valve, a rotary motor, a gear pair lubrication area, a control handle, an electric proportional control valve, a lubricating oil filler and a lubricating grease storage, wherein the display, the engine, the hydraulic main pump, the control handle and the electric proportional control valve are electrically connected with the controller, the engine is mechanically connected with the hydraulic main pump and provides power for the hydraulic main pump, an oil inlet of the hydraulic main pump is connected with the hydraulic oil tank through a pipeline, and an oil outlet of the hydraulic main pump is respectively connected with the electric proportional control valve and the hydraulic main valve through pipelines.
2. The automatic lubrication control system for the gear pair of the swing mechanism of the hydraulic excavator according to claim 1, wherein the oil outlet of the electric proportional control valve is connected with the lubricating oil filling device through a pipeline to control the lubricating oil filling device to perform oiling work, the lubricating oil filling device is communicated with the lubrication area of the gear pair through a pipeline, and the oil outlet of the lubricating grease storage is connected with the lubricating oil filling device through a pipeline to provide lubricating grease for the lubricating grease storage.
3. The automatic lubrication control system for the gear pair of the rotary mechanism of the hydraulic excavator according to claim 2, wherein an output oil port of the hydraulic main valve is connected with the rotary motor through a pipeline to control the rotary motor to work, a control oil port of the hydraulic main valve is connected with the control handle through a pipeline to control the switching of the hydraulic main valve through the control handle so as to control the rotation direction of the rotary motor, the controller is an ECU, an output shaft of the rotary motor is connected with the gear pair of the rotary mechanism to control the rotary mechanism to work, and an electric proportional control valve and an oil return port of the hydraulic main valve are connected with a hydraulic oil tank through pipelines.
4. The automatic lubrication control system for a gear pair of a swing mechanism of a hydraulic excavator according to claim 3, wherein the lubrication oil pool in the swing mechanism is used for storing the lubrication grease injected by the lubrication oil injector.
5. A system for automatically controlling the lubrication of a gear pair of a swing mechanism of a hydraulic excavator according to claim 3, wherein the gear pair lubrication area is located above a gear cavity of the gear pair of the swing mechanism.
6. A control method of an automatic lubrication control system for a gear pair of a swing mechanism of a hydraulic excavator according to claim 3, wherein the gear pair is lubricated by selecting the automatic mode of the control system according to actual needs, if not, the function can be manually closed; the automatic lubrication is controlled as follows: the method comprises the steps that signals for collecting and operating the slewing mechanism are transmitted to a controller, the controller sends instructions to an electric proportional control valve according to a working mode selected by a manipulator, pressure oil provided by a hydraulic main pump is transmitted to a lubricating oil filling device at the moment, a piston of the lubricating oil filling device is pushed, proper lubricating grease is filled into a gear pair of the slewing mechanism, the gear pair is fully lubricated, and working condition requirements are met; when the lubricating grease stored in the lubricating oil pool is suitable for gear pair lubrication, the automatic lubrication function is manually cut off.
7. The control method of the automatic lubrication control system for the slewing mechanism gear pair of the hydraulic excavator according to claim 6, wherein the control method comprises the following steps: the specific method comprises the following steps:
(1) Before the whole excavator is started, the electric proportional control valve is in a power-off state, a machine hand fills the lubricating grease storage with lubricating grease, the lubricating grease is filled into the lubricating grease filling device through a pipeline after being pressurized, and the whole excavator is waited for starting;
(2) Deactivating the automatic lubrication switch and the operating mode via the display: in a heavy load mode or an economic mode, when a manipulator operates the control handle, an electric signal is sent to the controller, meanwhile, the hydraulic main valve is controlled to be reversed, the engine drives the hydraulic main pump to work, the pressure provided by the hydraulic main pump is sent to the rotary motor through the hydraulic main valve, the rotary motor works, and the output gear of the rotary motor is meshed with the gear pair of the rotary mechanism to drive the excavator to get on the truck to rotate;
(3) When the upper vehicle rotates, the controller receives an electric signal of the control handle, judges that the upper vehicle rotating action is activated, controls the electric proportional control valve to work according to a working mode command signal sent by the display, and the hydraulic main pump provides pressure oil to be conveyed to the lubricating oil filling device through the electric proportional control valve to push the piston of the lubricating oil filling device to fill lubricating grease into a lubricating area of the gear pair, so that the gear pair of the rotating mechanism is fully lubricated;
(4) When the lubricating grease stored in the lubricating oil pool of the slewing mechanism is suitable for gear pair lubrication, the automatic lubrication function is manually cut off, the controller does not send an instruction to the electric proportional control valve, and the lubricating oil filling device does not work.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410689701.4A CN118531864A (en) | 2024-05-30 | 2024-05-30 | Automatic lubrication control system and control method for gear pair of hydraulic excavator slewing mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410689701.4A CN118531864A (en) | 2024-05-30 | 2024-05-30 | Automatic lubrication control system and control method for gear pair of hydraulic excavator slewing mechanism |
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| CN118531864A true CN118531864A (en) | 2024-08-23 |
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| CN202410689701.4A Pending CN118531864A (en) | 2024-05-30 | 2024-05-30 | Automatic lubrication control system and control method for gear pair of hydraulic excavator slewing mechanism |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201302032Y (en) * | 2008-11-20 | 2009-09-02 | 徐州重型机械有限公司 | Meshing gear lubricating device of swing mechanism |
| US20100235060A1 (en) * | 2007-11-13 | 2010-09-16 | Komatsu Ltd. | Engine control device of construction machine |
| CN110409536A (en) * | 2019-06-28 | 2019-11-05 | 三一重机有限公司 | Slewing gear and excavators |
| CN215000887U (en) * | 2021-04-21 | 2021-12-03 | 天津轻工职业技术学院 | Automatic lubricating grease injection device for excavator |
| CN215636435U (en) * | 2021-08-19 | 2022-01-25 | 上海三一重机股份有限公司 | Automatic lubricating system and operation machine |
-
2024
- 2024-05-30 CN CN202410689701.4A patent/CN118531864A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20100235060A1 (en) * | 2007-11-13 | 2010-09-16 | Komatsu Ltd. | Engine control device of construction machine |
| CN201302032Y (en) * | 2008-11-20 | 2009-09-02 | 徐州重型机械有限公司 | Meshing gear lubricating device of swing mechanism |
| CN110409536A (en) * | 2019-06-28 | 2019-11-05 | 三一重机有限公司 | Slewing gear and excavators |
| CN215000887U (en) * | 2021-04-21 | 2021-12-03 | 天津轻工职业技术学院 | Automatic lubricating grease injection device for excavator |
| CN215636435U (en) * | 2021-08-19 | 2022-01-25 | 上海三一重机股份有限公司 | Automatic lubricating system and operation machine |
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Inventor after: Li Yao Inventor after: Liu Hetao Inventor after: Jin Chao Inventor after: Zhong Jiawei Inventor after: Li Yongsen Inventor before: Liu Hetao Inventor before: Li Yao Inventor before: Jin Chao Inventor before: Zhong Jiawei Inventor before: Li Yongsen |