Auxiliary device convenient for disassembling yaw speed reducer of doubly-fed unit
By designing a supporting device including brackets, rail wheels, rails and hand -stretching gourds, the problem of disassembly difficulty caused by the narrow space around the dual -feed unit polarization reducer, achieve faster and secure disassembly and installation, reduced it, and reduced it. The device shutdown time increases the useful use rate of the unit.
Patent Information
- Application Number
- CN202421238441.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-03
- Publication Date
- 2025-01-24
- Estimated Expiration
- 2034-06-03
AI Technical Summary
The space around the double-feeding unit is yawed and the space around the reducer is small, which makes it difficult to disassemble the equipment and requires more manpower and time, resulting in long-term shutdown of the equipment and loss of power.
Design a auxiliary device, including brackets, rail wheels, guide rails, and hand -stretched gourds. It provides new strength points through guide rails and rail wheels. The sum of the weight of the polarization reducer and the gourd of the hand.
Through this auxiliary device, a new point of focus is provided, which simplifies the disassembly and installation process of the polar reducer, reduces human and time needs, reduces equipment suspension time, and improves the availability of the unit.
Smart Images
Figure CN222389476U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of mechanical disassembly and replacement, and is specifically an auxiliary device for facilitating the disassembly of a yaw reducer of a double-fed unit. Background Art
[0002] According to the current wind power generation form, most of the doubly-fed wind turbines have been running for a long time, and the rotating mechanical parts of the units have been damaged and need to be replaced. There are no obstacles on the top and sides of the yaw reducer during initial installation, so the installation is relatively convenient. The yaw reducer during operation has the main shaft and gearbox on the side, the cabin bottom below, and the cabin platform above. The space is extremely narrow, and there is no fulcrum for personnel to disassemble or replace. The equipment is difficult to disassemble. When the equipment is damaged, personnel need more manpower and time to replace the yaw reducer, which will cause long-term equipment shutdown and power loss. Utility Model Content
[0003] The technical problem to be solved by the utility model is to solve the problem that the space around the yaw reducer is extremely narrow and the equipment is difficult to disassemble, and to provide an auxiliary device for facilitating the disassembly of the yaw reducer of the double-fed unit
[0004] In response to the above technical problems, the technical solution of the utility model is an auxiliary device for facilitating the disassembly of the yaw reducer of a doubly fed unit, comprising a bracket, a track wheel, a guide rail for the track wheel to slide underneath, one end of the guide rail overlapping the top of the bracket, the track wheel having a connecting hole, and a hand winch cooperating with the connecting hole of the track wheel, the pulling force of the hand winch being greater than or equal to the weight of each stage of the yaw reducer, and the bearing capacity of the guide rail being greater than or equal to the sum of the weight of each stage of the yaw reducer and the weight of the hand winch.
[0005] Specifically, the guide rail has a stopper near the end of the guide rail.
[0006] Specifically, a lifting ring is provided near the end of the guide rail, a connecting rod is fixedly connected to the lifting ring, the outer diameter of the connecting rod is matched with the inner diameter of the lifting ear of the unit gear box, and a universal wheel is provided at the bottom of the bracket.
[0007] Specifically, a threaded sheet is provided at the bottom of the bracket, the thread of the threaded sheet is in contact with the bottom plate of the unit cabin platform, and the end of the guide rail is provided with a thread.
[0008] Specifically, the bracket is a tripod bracket.
[0009] Specifically, the guide rail is made of angle iron.
[0010] Specifically, a support plate is provided between one end of the guide rail and the top of the bracket.
[0011] Due to the above-mentioned special design of the auxiliary device, the extremely narrow space around the yaw reducer is avoided, and a new fulcrum is provided on the periphery of the yaw reducer. The utility model has a simple and light structure, is easy to install, and is highly practical. It can speed up the disassembly of the yaw reducer of the doubly fed unit by personnel, improve the safety and efficiency of personnel when disassembling and assembling the yaw reducer, further reduce the non-downtime of the unit, and improve the availability of the unit. BRIEF DESCRIPTION OF THE DRAWINGS
[0012] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present application, rather than limiting the present application.
[0013] Figure 1 This is the structure diagram of the utility model
[0014] Among them, 1 bracket, 2 blocks, 3 guide rails, 4 hand chain hoists, 5 track wheels DETAILED DESCRIPTION
[0015] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be clearly and completely described below in conjunction with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all of the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by ordinary technicians in this field without creative work belong to the scope of protection of this application.
[0016] Unless otherwise defined, technical or scientific terms used herein shall have the common meanings understood by a person having ordinary skills in the field to which this application belongs.
[0017] The specific implementation methods of the utility model are fully and detailedly described below in conjunction with the accompanying drawings.
[0018] like Figure 1As shown, an auxiliary device for facilitating the disassembly of the yaw reducer of a doubly fed generator set comprises a bracket 1, a track wheel 5, a guide rail 3 for the track wheel 5 to slide underneath, one end of the guide rail overlaps the top of the bracket 1, the track wheel 5 has a connecting hole, a hand chain hoist 4 matched with the connecting hole of the track wheel 5, the pulling force of the hand chain hoist 4 is greater than or equal to the weight of each stage of the yaw reducer, and the bearing capacity of the guide rail 3 is greater than or equal to the sum of the weight of each stage of the yaw reducer and the weight of the hand chain hoist 4. When in use, first disassemble the yaw reducer in stages, fix the last stage of the yaw reducer with a sling, place the bracket 1 in an open area on the cabin platform, overlap one end of the guide rail 3 on the top of the bracket 1, and place the other end in the lifting ear of the gearbox, slide the track wheel 5 above the yaw reducer, connect the hand chain hoist 4 to the connection hole of the track wheel 5, operate the handle of the hand chain hoist 4, connect the hook of the hand chain hoist 4 to the lifting part of the sling, and then pull the handle of the hand chain hoist 4 to slowly pull the last stage of the yaw reducer to slightly above the cabin platform, move the track wheel 5 to drive the yaw reducer to the top of the open area of the cabin platform, and then operate the handle of the hand chain hoist 4 to slowly place the yaw reducer on the cabin platform, and finally slowly transfer it to the side of the lifting hole, and lower the cabin after it is firmly fixed. Finally, complete the disassembly of other stages of the yaw reducer in sequence. During installation, suspend the yaw reducers of each stage to the installation site through this auxiliary device, and complete the installation in sequence.
[0019] Specifically, the track wheel 5 is a self-locking track wheel, which can enhance the stability of disassembly and installation operations.
[0020] Specifically, the guide rail 3 has a stopper 2 near the end of the guide rail, which can enhance the safety of disassembly and installation operations.
[0021] Specifically, the stopper 2 is detachably connected to the guide rail 3, so that the track wheel 5 can be easily replaced.
[0022] Specifically, the guide rail 3 has a lifting ring near the end of the guide rail, and the lifting ring is fixedly connected to a connecting rod. The outer diameter of the connecting rod is adapted to the inner diameter of the lifting ear of the unit gear box. The bottom of the bracket 1 is provided with a universal wheel to facilitate the adjustment of the direction of the guide rail.
[0023] Specifically, a threaded sheet is provided at the bottom of the bracket 1, and the thread of the threaded sheet is in contact with the bottom plate of the unit cabin platform. The end of the guide rail 3 is provided with a thread, which can enhance the stability of the bracket 1 and the stability of the cooperation between the guide rail 3 and the gear box lifting ear.
[0024] Specifically, the bracket 1 is a triangular bracket, which can enhance the stability of the bracket 1.
[0025] Specifically, the guide rail 3 is made of angle iron, which can enhance the coordination stability between the guide rail 3 and the track wheel 5 .
[0026] Specifically, there is a support plate between one end of the guide rail 3 and the top of the bracket 1, which can enhance the matching stability between the guide rail 3 and the bracket 1.
[0027] Specifically, the support plate has threads on both sides, which can further enhance the matching stability between the guide rail 3 and the bracket 1 .
[0028] The above description is merely an exemplary embodiment of the present application and is not intended to limit the protection scope of the present application. The protection scope of the present application is determined by the appended claims.
Claims
1. An auxiliary device for facilitating the disassembly of a yaw reducer of a doubly-fed generator set, characterized in that The invention comprises a bracket (1), a track wheel (5), a guide rail (3) on which the track wheel (5) can slide, one end of the guide rail (3) overlaps with the top of the bracket (1), the track wheel (5) has a connecting hole, and a hand chain hoist (4) matched with the connecting hole of the track wheel (5), the pulling force of the hand chain hoist (4) is greater than or equal to the weight of each stage of the yaw reducer, and the bearing capacity of the guide rail (3) is greater than or equal to the sum of the weight of each stage of the yaw reducer and the weight of the hand chain hoist (4).
2. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that The track wheel (5) is a self-locking track wheel.
3. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that The guide rail (3) is provided with a stopper (2) near the end of the guide rail.
4. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 3, characterized in that The stopper (2) is detachably connected to the guide rail (3).
5. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that The guide rail (3) is provided with a lifting ring near the end of the guide rail, and the lifting ring is fixedly connected to a connecting rod, the outer diameter of the connecting rod is adapted to the inner diameter of the lifting ear of the unit gear box, and a universal wheel is provided at the bottom of the bracket (1).
6. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that A threaded sheet is provided at the bottom of the bracket (1), the thread of the threaded sheet is in contact with the bottom plate of the unit cabin platform, and a thread is provided at the end of the guide rail.
7. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that The bracket (1) is a triangular bracket.
8. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that The guide rail (3) is made of angle iron.
9. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 1, characterized in that A support plate is provided between one end of the guide rail (3) and the top of the bracket (1).
10. The auxiliary device for facilitating the disassembly of the yaw reducer of a doubly-fed generator set according to claim 9, characterized in that The supporting plate has threads on both sides.