CN218062529U - Wind generating set's wind blade wheel locking device - Google Patents

Abstract

The utility model provides a wind blade wheel locking device of a wind generating set, which is characterized in that an electromagnetic driving component, a spacing baffle plate, an elastic connecting piece, a permanent magnet and a locking component are arranged in a cabin body of the wind generating set; the electromagnetic driving component comprises an electromagnet and a driving circuit; the electromagnet comprises an iron core and an electromagnetic coil sleeved on the iron core; the driving circuit is electrically connected with the electromagnetic coil and used for changing the magnetic pole direction of the electromagnet by changing the current direction; the limiting partition plate is arranged below the electromagnet; one end of the permanent magnet is connected with the locking assembly, and the other end of the permanent magnet penetrates through the limiting partition plate and is fixedly connected with one end of the elastic connecting piece; the other end of the elastic connecting piece is fixedly connected with the top of the limiting partition plate, so that the impeller can be locked, and the safety is high.

Description

Wind generating set's wind blade wheel locking device

Technical Field

The utility model relates to a aerogenerator technical field, in particular to wind generating set's wind blade wheel locking device.

Background

The wind power generator is an electric power device which converts wind energy into mechanical power, and the mechanical power drives a rotor to rotate so as to finally output alternating current.

The wind driven generator generally comprises components such as a wind wheel, a generator, a direction regulator (empennage), a tower frame, a speed-limiting safety mechanism, an energy storage device and the like, the wind driven generator needs to be overhauled after being used for a long time, and an impeller needs to stop rotating during overhauling so that a worker can conveniently overhaul the wind driven generator.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

In order to solve the above problems in the prior art, the utility model provides a wind generating set's wind vane wheel locking device can lock and the security is high to the impeller.

(II) technical scheme

In order to achieve the above object, the utility model discloses a main technical scheme include:

a wind blade wheel locking device of a wind generating set comprises an electromagnetic driving assembly, a limiting partition plate, an elastic connecting piece, a permanent magnet and a locking assembly, wherein the electromagnetic driving assembly, the limiting partition plate, the elastic connecting piece, the permanent magnet and the locking assembly are arranged in a cabin body of the wind generating set;

the electromagnetic driving assembly comprises an electromagnet and a driving circuit;

the electromagnet comprises an iron core and an electromagnetic coil sleeved on the iron core;

the driving circuit is electrically connected with the electromagnetic coil and used for changing the magnetic pole direction of the electromagnet by changing the current direction;

the limiting partition plate is arranged below the electromagnet;

one end of the permanent magnet is connected with the locking assembly, and the other end of the permanent magnet penetrates through the limiting partition plate and is fixedly connected with one end of the elastic connecting piece;

the other end of the elastic connecting piece is fixedly connected with the top of the limiting partition plate.

Further, the elastic connecting piece is specifically a memory spring.

Further, the wind driven generator comprises a cabin body, a fixed frame, a rotating shaft and a wind blade wheel;

the fixed frame is fixed in the cabin body, and the wind blade wheel is arranged outside the cabin body;

one end of the rotating shaft is rotatably connected with the fixing frame, and the other end of the rotating shaft is connected with the wind blade wheel.

Further, the locking assembly includes a lower platen and a friction pad;

one end of the permanent magnet is connected with one end of the lower pressure plate;

the friction pad is sleeved on the rotating shaft and is positioned right below the lower pressing plate.

Further, the lower pressing plate is an arc-shaped pressing plate;

and a plurality of bulges are arranged on one surface of the lower pressing plate, which is close to the friction pad.

(III) advantageous effects

The beneficial effects of the utility model reside in that: an electromagnetic driving assembly, a limiting partition plate, an elastic connecting piece, a permanent magnet and a locking assembly are arranged in a cabin body of the wind driven generator; the electromagnetic driving component comprises an electromagnet and a driving circuit; the electromagnet comprises an iron core and an electromagnetic coil sleeved on the iron core; the driving circuit is electrically connected with the electromagnetic coil and used for changing the magnetic pole direction of the electromagnet by changing the current direction; the limiting partition plate is arranged below the electromagnet; one end of the permanent magnet is connected with the locking assembly, and the other end of the permanent magnet penetrates through the limiting partition plate and is fixedly connected with one end of the elastic connecting piece; the other end of the elastic connecting piece is fixedly connected with the top of the limiting partition plate, so that the impeller can be locked, and the safety is high.

Drawings

Fig. 1 is an installation schematic view of a wind vane wheel locking device of a wind generating set according to an embodiment of the present invention;

fig. 2 is a schematic view of the overall structure of the wind vane wheel locking device of the wind generating set according to the embodiment of the present invention.

[ description of reference ]

1: a cabin body; 2: a fixed mount; 3: a rotating shaft; 4: an electromagnetic drive assembly; 5: a permanent magnet; 6: pressing the plate downwards; 7: a friction pad; 8: an impeller; 9: a fan blade; 10: a housing; 11: a drive circuit; 12: an iron core; 13: an electromagnetic coil; 14: a limiting partition plate; 15: a memory spring; 16: and (4) protruding.

Detailed Description

For a better understanding of the present invention, reference will now be made in detail to the present invention, examples of which are illustrated in the accompanying drawings.

Referring to fig. 1 to 2, a wind blade wheel locking device of a wind turbine generator system includes an electromagnetic driving assembly 4, a limiting partition plate 14, an elastic connecting member, a permanent magnet 5 and a locking assembly, which are disposed in a cabin 1 of the wind turbine generator;

the electromagnetic driving component 4 comprises an electromagnet and a driving circuit 11;

the electromagnet comprises an iron core 12 and an electromagnetic coil 13 sleeved on the iron core 12;

the driving circuit 11 is electrically connected with the electromagnetic coil 13 and is used for changing the magnetic pole direction of the electromagnet by changing the current direction;

the limiting partition plate 14 is arranged below the electromagnet;

one end of the permanent magnet 5 is connected with the locking assembly, and the other end of the permanent magnet penetrates through the limiting partition plate 14 and is fixedly connected with one end of the elastic connecting piece;

the other end of the elastic connecting piece is fixedly connected with the top of the limiting partition plate 14.

Specifically, the electromagnetic driving assembly 4 further comprises a housing 10, and the electromagnet, the driving circuit 11 and the limiting partition plate 14 are all arranged in the housing 10;

the impeller 8 is connected with the rotating shaft 3;

a double pole double throw switch may be used to change the drive circuit 11 and thereby change the direction of current in the solenoid coil 13.

The elastic connecting piece is embodied as a memory spring 15.

Specifically, through setting up memory spring 15, can improve the stability of locking, not only can make holding down plate 6 when pushing down, frictional force between holding down plate 6 and the friction pad 7 can not increase suddenly to the locking appears, can also be when for the appeal between electro-magnet and permanent magnet 5, prevent that the electro-magnet from striking spacing baffle 14 top, thereby damage spacing baffle 14 top.

The wind driven generator comprises a cabin body 1, a fixed frame 2, a rotating shaft 3 and a wind blade wheel;

the fixed frame 2 is fixed in the cabin body 1, and the wind blade wheel is arranged outside the cabin body 1;

one end of the rotating shaft 3 is rotatably connected with the fixing frame 2, and the other end of the rotating shaft is connected with the wind blade wheel.

Specifically, the wind blade wheel comprises a wind blade 9 and an impeller 8, and the impeller 8 is connected with a plurality of wind blades 9.

The locking assembly comprises a lower pressure plate 6 and a friction pad 7;

one end of the permanent magnet 5 is connected with one end of the lower pressure plate 6;

the friction pad 7 is sleeved on the rotating shaft 3 and is located right below the lower pressing plate 6.

The lower pressing plate 6 is an arc-shaped pressing plate;

and a plurality of protrusions 16 are arranged on one surface of the lower pressure plate 6 close to the friction pad 7.

Specifically, by providing the protrusions 16 on the lower pressure plate 6, the frictional force between the lower pressure plate 6 and the friction pad 7 can be increased, thereby enabling the rotating shaft 3 to be locked quickly.

The working principle of the utility model is as follows:

when the wind generating set needs to be overhauled, an overhaul person can change the current direction in the electromagnetic coil 13 through the double-pole double-throw switch, so that the magnetic pole of one end, close to the permanent magnet 5, of the electromagnet is the same as the magnetic pole of the other end of the permanent magnet 5, namely, a repulsive force exists between the two, the permanent magnet 5 moves downwards along the limiting partition plate 14, the memory spring 15 is in a stretching state and drives the lower pressing plate 6, the lower pressing plate 6 and the friction pad 7 rub against each other, and the impeller 8 and the blade are locked under the action of friction force, so that the overhaul person can conveniently overhaul.

When the maintenance is finished, the maintenance personnel change the current direction of the electromagnetic coil 13 again through the double-pole double-throw switch, so that the magnetic pole of one end of the electromagnet close to the permanent magnet 5 is opposite to the magnetic pole of the other end of the permanent magnet 5, namely, the magnetic pole and the permanent magnet are attractive, the permanent magnet 5 drives the lower pressing plate 6 to be separated from the friction pad 7 under the combined action of the repulsive force and the tensile force of the memory spring 15, and the wind generating set works normally.

The above mentioned is only the embodiment of the present invention, and the patent scope of the present invention is not limited thereby, and all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.

Claims (5)

1. A wind blade wheel locking device of a wind generating set is characterized by comprising an electromagnetic driving assembly, a limiting partition plate, an elastic connecting piece, a permanent magnet and a locking assembly, wherein the electromagnetic driving assembly, the limiting partition plate, the elastic connecting piece, the permanent magnet and the locking assembly are arranged in a cabin body of the wind generating set;

the electromagnetic driving assembly comprises an electromagnet and a driving circuit;

the electromagnet comprises an iron core and an electromagnetic coil sleeved on the iron core;

the driving circuit is electrically connected with the electromagnetic coil and used for changing the magnetic pole direction of the electromagnet by changing the current direction;

the limiting partition plate is arranged below the electromagnet;

one end of the permanent magnet is connected with the locking assembly, and the other end of the permanent magnet penetrates through the limiting partition plate and is fixedly connected with one end of the elastic connecting piece;

the other end of the elastic connecting piece is fixedly connected with the top of the limiting partition plate.

2. Wind vane wheel locking device of a wind park according to claim 1, characterised in that the elastic connection is embodied as a memory spring.

3. The wind blade wheel locking device of a wind generating set according to claim 1, wherein the wind generator comprises a nacelle, a fixed frame, a rotating shaft and a wind blade wheel;

the fixed frame is fixed in the cabin body, and the wind blade wheel is arranged outside the cabin body;

one end of the rotating shaft is rotatably connected with the fixing frame, and the other end of the rotating shaft is connected with the wind blade wheel.

4. The wind vane wheel locking device of a wind turbine generator set of claim 3, wherein the locking assembly includes a lower pressure plate and a friction pad;

one end of the permanent magnet is connected with one end of the lower pressure plate;

the friction pad is sleeved on the rotating shaft and is positioned right below the lower pressing plate.

5. The wind vane wheel locking device of a wind generating set of claim 4, wherein the lower pressure plate is an arc-shaped pressure plate;

and a plurality of bulges are arranged on one surface of the lower pressing plate close to the friction pad.

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