Wind power yaw speed reducer
By improving the gear transmission structure of the wind turbine yaw reducer and adopting a two-stage planetary structure of 2Z-X plus 3Z, the problems of numerous parts, heavy weight, and inconvenient maintenance of the existing wind turbine yaw reducer have been solved, resulting in fewer parts, lighter weight, and easier maintenance.
CN224032698UActive Publication Date: 2026-03-24YINCHUAN WEILI REDUCER MACHINERY
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Patent Information
- Application Number
- CN202520851270.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-03-24
- Estimated Expiration
- 2035-04-30
AI Technical Summary
Technical Problem
Existing wind turbine yaw reducers have a large speed ratio, resulting in numerous parts, high weight, large size, high cost, and inconvenient maintenance.
Method used
The 2Z-X plus 3Z type two-stage planetary structure is adopted to improve the gear transmission, reduce the number of planetary gear transmission stages, and take advantage of the large speed ratio characteristics of the 3Z type planetary structure to change the four to five-stage planetary transmission into a two-stage planetary transmission.
Benefits of technology
It effectively reduces the number of parts, weight, and overall dimensions, improving maintenance convenience.
✦ Generated by Eureka AI based on patent content.
Abstract
A wind power yaw speed reducer relates to the technical field of yaw transmission of a wind driven generator, can meet the requirement of large speed ratio of the yaw speed reducer by modifying a gear transmission structure and adopting a 2Z-X and 3Z type two-stage planetary structure, can effectively reduce the transmission stage number of planetary gears, and reduces the number, weight and overall appearance size of parts. And later maintenance is facilitated. In the wind power yaw speed reducer, a motor base and an upper machine body are connected with a lower machine body through bolts, and the lower machine body is fixed to a wind driven generator rack; the yaw speed reducer box body is fixed during working, and motor power is output to a yaw gear ring through an open gear after speed reduction and torque increase through a gear in the speed reducer.
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