Installation and maintenance tool for yaw brake

Abstract

The utility model relates to the technical field of wind driven generator installation and maintenance tools, and particularly discloses a yaw brake installation and maintenance tool which comprises a support. The lifting platform is arranged on the support in a sliding mode, can do lifting motion in the gravity direction and is used for placing a yaw brake; the at least two chain wheels are rotatably arranged on the bracket; the chain is arranged on the chain wheel in a tensioning and sleeving mode, and the lifting platform is fixedly connected with the chain; an output shaft of the reduction gearbox is in transmission connection with one chain wheel, and an input shaft of the reduction gearbox is used for a user to rotate by hand; the limiting assemblies are arranged on the lifting platform, located on the periphery of the yaw brake and used for being connected with the yaw brake in a clamped mode; by means of the yaw brake lifting device, the yaw brake does not need to be lifted and transported by multiple persons together, the manual labor amount of maintenance work of the yaw brake can be effectively reduced, and the personal safety of workers is protected.

Description

Technical Field

[0001] This utility model relates to the technical field of installation and maintenance fixtures for wind turbine generators, and in particular to an installation and maintenance fixture for a yaw brake. Background Technology

[0002] During the operation and maintenance of wind turbine generators, the stable operation of the yaw system is crucial to the power generation efficiency and safety of the turbine. The yaw brake, as a key component of the yaw system, plays a vital role in adjusting the turbine's direction and maintaining stability.

[0003] Currently, traditional disassembly and installation methods for yaw brake maintenance have many drawbacks. Due to the weight and size of the yaw brake itself, disassembly and assembly usually require at least three people to work together to lift and transport it. First, the yaw brake is removed from the wind turbine, and after maintenance, it needs to be lifted back onto the wind turbine and reinstalled.

[0004] In the maintenance of such yaw brakes, manually moving the yaw brakes is not only inefficient, but also prone to causing personal injury accidents due to improper operation.

[0005] Therefore, developing a specialized maintenance tool that can improve the efficiency of yaw brake installation and maintenance and ensure operational safety is of great practical significance. Utility Model Content

[0006] In view of the above problems, this utility model provides a yaw brake installation and maintenance fixture, the purpose of which is to reduce manual labor and improve the protection of the personal safety of workers.

[0007] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0008] A yaw brake installation and maintenance fixture is provided, comprising: a bracket; a lifting platform slidably mounted on the bracket and capable of lifting and lowering along the direction of gravity for placing the yaw brake; at least two sprockets rotatably mounted on the bracket; a chain tensioned and sleeved on the sprockets, with the lifting platform and the chain fixedly connected; a reduction gearbox, the output shaft of which is driven to one of the sprockets, and the input shaft of which is manually cranked by a user; and several limiting components mounted on the lifting platform around the yaw brake for engaging the yaw brake.

[0009] Furthermore, the tooling also includes a rocker arm, which is fixedly connected to the input shaft of the gearbox and is held by the user.

[0010] Furthermore, the tooling also includes: an installation groove, which is provided on the lifting platform for the bracket to pass through; a roller, which is rotatably mounted on the lifting platform and located in the installation groove; and a V-shaped groove provided on the roller, into which the bracket is engaged.

[0011] Furthermore, the tooling also includes: an installation frame, which is fixedly mounted on the lifting platform, with the chain passing through the installation frame along the direction of gravity; and a fixing plate, which is fixedly mounted on the lifting platform at one end and passes through the chain and the installation frame at the other end.

[0012] Furthermore, the fixture also includes a base and casters, with several casters mounted on the base and a bracket welded to the base.

[0013] Furthermore, the limiting assembly includes: a limiting rod, which is slidably disposed within the lifting platform along the direction of gravity; a pressure block, disposed at one end of the limiting rod, for pressing against the yaw brake; a limiting block, disposed at the end of the limiting rod away from the pressure block; and a spring, sleeved on the limiting rod, with one end abutting against the lifting platform and the other end abutting against the limiting block.

[0014] Furthermore, the limiting rod includes a threaded section and a square section; wherein, the threaded section has a circular cross-section and is provided with external threads, and the limiting block and the threaded section are connected by threads; the square section has a square cross-section and is slidably disposed within the lifting platform.

[0015] Furthermore, the limiting assembly also includes a gasket, made of rubber, disposed on the pressure block, for pressing against the yaw brake.

[0016] Furthermore, the tooling also includes several storage slots located on the lifting platform for embedding and placing the pressure blocks.

[0017] The beneficial effects of this utility model are as follows: by using this utility model, the yaw brake can be effectively reduced by eliminating the need for multiple people to lift and transport it; the yaw brake can be protected from manual lifting and lowering without the need for manual handling; and by setting a limiting component that secures the yaw brake around its four sides, the yaw brake can be prevented from falling off the lifting platform, further protecting the personal safety of the workers. Attached Figure Description

[0018] Figure 1 This is a side view of the overall structure of the tooling provided in an embodiment of this application.

[0019] Figure 2 This is a top view of the overall structure of the tooling provided in an embodiment of this application.

[0020] Figure 3 for Figure 2 Enlarged diagram of point A.

[0021] Figure 4 This is a schematic diagram of the installation structure of the limiting component and the lifting platform provided in the embodiments of this application.

[0022] Among them, 11. Bracket; 12. Base; 13. Caster wheel; 14. Sprocket; 15. Chain; 16. Gearbox; 17. Rocker arm; 2. Lifting platform; 21. Fixing plate; 22. Roller; 23. Mounting frame; 24. Storage slot; 31. Limiting rod; 311. Threaded section; 312. Square section; 32. Pressure block; 33. Limiting block; 34. Spring; 35. Washer; 4. Yaw brake. Detailed Implementation

[0023] To better understand the above technical solutions, the following will provide a detailed explanation of the technical solutions in conjunction with the accompanying drawings and specific implementation methods.

[0024] Reference Figure 1 As shown in the embodiment of this application, a yaw brake installation and maintenance fixture is disclosed, including: a bracket 11; a lifting platform 2, slidably mounted on the bracket 11, capable of moving up and down along the direction of gravity, for placing the yaw brake 4; at least two sprockets 14, rotatably mounted on the bracket 11; a chain 15, tensioned and sleeved on the sprockets 14, and the lifting platform 2 and the chain 15 are fixedly connected; a reduction gearbox 16, the output shaft of the reduction gearbox 16 is driven to one of the sprockets 14, and the input shaft of the reduction gearbox 16 is manually cranked by the user; and several limiting components, mounted on the lifting platform 2, located around the yaw brake 4, for engaging the yaw brake 4.

[0025] In this utility model, when it is necessary to move the yaw brake 4 up and down along the direction of gravity during the maintenance of the yaw brake 4, the lifting platform 2 is placed below the yaw brake 4, and the yaw brake 4 is supported by the lifting platform 2. Then, the input shaft of the reduction gearbox 16 is manually turned to drive one of the sprockets 14 to rotate, which in turn drives the chain 15 to move. This is used to pull the lifting platform 2 up and down in the vertical direction, thereby driving the yaw brake 4 to move up or down.

[0026] By using this utility model, the yaw brake 4 can be lifted and transported without the need for multiple people to work together, which can effectively reduce the amount of manual labor required for the maintenance of the yaw brake 4; the yaw brake 4 can be moved up and down manually without the need for manual labor, which can protect the personal safety of the staff; by setting a limiting component, the limiting component can lock the yaw brake 4 around its four sides, which can prevent the yaw brake 4 from falling off the lifting platform 2, further protecting the personal safety of the staff.

[0027] Preferably, the tooling further includes: a rocker arm 17, which is fixedly connected to the input shaft of the gearbox 16 and is held by the user; so that the operator can rotate the input shaft of the gearbox 16 by holding and rocking the rocker arm 17.

[0028] Reference Figure 2 As shown, the tooling also includes: an installation groove, which is opened on the lifting platform 2 for the bracket 11 to pass through; a roller 22, which is rotatably set on the lifting platform 2 and is located in the installation groove; a V-shaped groove is opened on the roller 22, and the bracket 11 is engaged in the V-shaped groove.

[0029] By setting rollers 22 to make the lifting platform 2 and the bracket 11 roll into contact, it is easy to guide the lifting platform 2 to move along the bracket 11, and the bracket 11 is locked in the V-groove, which can improve the stability of the lifting movement.

[0030] It is worth mentioning that a support rod can be added below the lifting platform 2. The support rod and the lifting platform are installed in a triangular shape, and the support rod is attached to the bracket 11 to further improve the stability of the lifting platform 2 on the bracket 11.

[0031] Reference Figure 3 As shown, the tooling also includes: a mounting frame 23, which is fixedly mounted on the lifting platform 2, and the chain 15 passes through the mounting frame 23 along the direction of gravity; and a fixing plate 21, one end of which is fixedly mounted on the lifting platform 2, and the other end of which passes through the chain 15 and the mounting frame 23.

[0032] By setting a fixed plate to fix the lifting platform 2 and the chain 15, the movement of the chain 15 can drive the lifting platform 2 to move synchronously.

[0033] Preferably, the tooling further includes: a base 12 and casters 13, with several casters 13 disposed on the base 12, and the bracket 11 welded and installed on the base 12; wherein, the casters 13 are selected from commercially available casters 13 with self-locking function, and by setting the casters 13, the entire tooling can be easily moved, improving convenience.

[0034] Reference Figure 4 As shown, the limiting assembly includes: a limiting rod 31, which is slidably disposed within the lifting platform 2 along the direction of gravity; a pressure block 32, disposed at one end of the limiting rod 31, for pressing against the yaw brake 4; a limiting block 33, disposed at the end of the limiting rod 31 away from the pressure block 32; and a spring 34, sleeved on the limiting rod 31, with one end abutting against the lifting platform 2 and the other end abutting against the limiting block 33.

[0035] After placing the yaw brake 4 on the lifting platform 2, manually pull the pressure block 32 to compress the spring 34 and adjust the direction of the pressure block 32 so that it faces the yaw brake 4. After releasing the pressure block 32, it will press the yaw brake 4 into contact and engage it, thus limiting the yaw brake 4 on the lifting platform 2 and preventing it from falling, further enhancing the protection of the staff.

[0036] Preferably, the limiting rod 31 includes a threaded section 311 and a square section 312; wherein the threaded section 311 has a circular cross-section and is provided with external threads, and the limiting block 33 and the threaded section 311 are connected by threads; the square section 312 has a square cross-section and is slidably disposed within the lifting platform 2.

[0037] Specifically, a square hole is provided on the lifting platform 2, and the square segment 312 of the limiting rod 31 can be slidably placed in the square hole. It is worth mentioning that when the pressure block 32 presses against the yaw brake, the square segment 312 is in the square hole, which can restrict the rotation of the limiting rod 31 and ensure that the pressure block 32 faces the yaw brake 4, further improving the stability of the yaw brake 4.

[0038] Specifically, a threaded section 311 is provided on the limiting rod 31, and the pressure block 32 and the threaded section 311 are installed by threaded connection, allowing the user to rotate the pressure block 32 flexibly; when the yaw brake 4 needs to be limited, the user can rotate the pressure block 32 until the pressure block 32 faces the yaw brake 4 and presses the yaw brake 4 into contact; when the yaw brake 4 needs to be released from the limit, the user can rotate the pressure block 32 until the pressure block 32 moves away from the yaw brake 4, and under the action of the spring 34 resetting, the limiting rod 31 can be driven downward, releasing the space around the yaw brake 4.

[0039] Specifically, the limiting component also includes: a shim 35, made of rubber, disposed on the pressure block 32, for pressing against the yaw brake 4, thereby elastically pressing the yaw brake 4 against the pressure block 32.

[0040] Preferably, the tooling further includes: several storage slots 24, which are provided on the lifting platform 2 for the pressure block 32 to be embedded and placed; ensuring that the yaw brake 4 can be placed flat on the lifting platform 2.

[0041] It is worth mentioning that several sets of limiting components are arranged along the rectangular array on the lifting platform 2. These sets of limiting components can adapt to the limiting requirements of yaw brakes 4 of different sizes, thereby improving the applicability of this utility model.

[0042] Those skilled in the art will understand that although preferred embodiments of the present invention have been described, those skilled in the art, once they learn the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the present invention. Clearly, those skilled in the art can make various alterations and modifications to the present invention without departing from its spirit and scope. Thus, if these modifications and modifications of the present invention fall within the scope of the machine equivalents of the claims of the present invention, the present invention also intends to include these modifications and modifications.

Claims

1. A tooling for installing and maintaining a yaw brake, characterized in that, include: Scaffold (11); The lifting platform (2) is slidably mounted on the bracket (11) and can move up and down along the direction of gravity for the yaw brake (4) to be placed. At least two sprockets (14) are rotatably mounted on a bracket (11); The chain (15) is tensioned and sleeved on the sprocket (14), and the lifting platform (2) and the chain (15) are fixedly connected; The gearbox (16) has an output shaft that is connected to one of the sprockets (14), and the input shaft of the gearbox (16) is cranked by hand by the user. Several limiting components are set on the lifting platform (2) and are located around the yaw brake (4) to engage the yaw brake (4).

2. The yaw brake installation and maintenance fixture according to claim 1, characterized in that, Also includes: The joystick (17) is fixedly connected to the input shaft of the gearbox (16) and is held by the user.

3. The yaw brake installation and maintenance fixture according to claim 1, characterized in that, Also includes: The mounting slot is provided on the lifting platform (2) for the bracket (11) to pass through; The roller (22) is rotatably mounted on the lifting platform (2) and is located in the mounting slot; a V-shaped groove is provided on the roller (22) and the bracket (11) is engaged in the V-shaped groove.

4. The yaw brake installation and maintenance fixture according to claim 1, characterized in that, Also includes: The mounting frame (23) is fixedly installed on the lifting platform (2), and the chain (15) passes through the mounting frame (23) along the direction of gravity; The fixing plate (21) is fixed at one end on the lifting platform (2) and the other end passes through the chain (15) and the mounting frame (23).

5. The yaw brake installation and maintenance fixture according to claim 1, characterized in that, Also includes: A base (12) and casters (13) are provided. Several casters (13) are provided on the base (12), and a bracket (11) is welded and installed on the base (12).

6. The yaw brake installation and maintenance fixture according to claim 1, characterized in that, The limit components include: The limiting rod (31) is slidably installed in the lifting platform (2) along the direction of gravity; A pressure block (32) is located at one end of the limiting rod (31) and is used to press against the yaw brake (4); A limiting block (33) is located at the end of the limiting rod (31) away from the pressure block (32); A spring (34) is fitted onto a limiting rod (31), with one end abutting against the lifting platform (2) and the other end abutting against the limiting block (33).

7. The yaw brake installation and maintenance fixture according to claim 6, characterized in that, The limiting rod (31) includes a threaded section (311) and a square section (312); wherein the threaded section (311) has a circular cross-section and is provided with an external thread, and the limiting block (33) and the threaded section (311) are connected by threads; the square section (312) has a square cross-section and is slidably disposed in the lifting platform (2).

8. The yaw brake installation and maintenance fixture according to claim 6, characterized in that, The limiting assembly also includes a gasket (35), made of rubber, disposed on the pressure block (32), for pressing against the yaw brake (4).

9. The yaw brake installation and maintenance fixture according to claim 6, characterized in that, Also includes: Several storage slots (24) are provided on the lifting platform (2) for the pressure block (32) to be embedded and placed.

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