Yaw mechanical locking device of wind turbine generator set

A wind turbine and mechanical locking technology, applied in the field of mechanical locking devices and locking devices for rotating parts, can solve the problems of increasing the safety factor of yaw braking and insufficient braking torque, so as to increase the safety factor and improve the braking torque. , the effect of preventing loss

Inactive Publication Date: 2013-06-19
JIANGSU WENDE NEW ENERGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a mechanical locking device to solve the problem of insufficient braking torque when replacing the yaw reducer and under severe conditions, and increase the safety factor of yaw braking

Method used

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  • Yaw mechanical locking device of wind turbine generator set
  • Yaw mechanical locking device of wind turbine generator set
  • Yaw mechanical locking device of wind turbine generator set

Examples

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Embodiment Construction

[0015] The present invention will be further described below in conjunction with drawings and embodiments.

[0016] Such as figure 1 ~As shown in FIG. 5 , the present invention includes a nacelle underframe 40 , a yaw bearing 20 and a locking pin 30 arranged on the underside of the nacelle underframe 40 , and the yaw bearing 20 is an outer ring toothed bearing. The locking pin 30 includes a shaft body 303 , and the radial side of the shaft body 303 extends an axial tooth 304 meshing with the teeth of the outer ring of the yaw bearing 20 . The cross section of the shaft body 303 is a circular shaft or a polygonal shaft. image 3 The shaft body 303 shown in the first embodiment is circular, Figure 4 The shaft 303 shown in the second embodiment is square, and the cross-sectional shape of the shaft body 303 is not limited by the first and second embodiments; the upper end of the locking pin 30 is provided with a baffle plate 302 to prevent it from falling, and the upper side of ...

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Abstract

The invention discloses a yaw mechanical locking device of a wind turbine generator set. The mechanical locking device of the wind turbine generator set comprises a cabin chassis, a yaw bearing arranged on the lower side of the cabin chassis and a locking pin, wherein the yaw bearing is a bearing with teeth on the outer ring, the locking pin comprises a shaft body, axial teeth extended on the radial side of the shaft body are meshed with the teeth of the outer ring of the yaw bearing, the cabin chassis is provided with a locking pin hole, and the locking pin hole corresponds to the position of the teeth of the outer ring of the yaw bearing. When a yaw system is locked, the locking pin is inserted into the locking pin hole, and the axial teeth on the side of the locking pin are inserted between two neighboring teeth of the outer ring of the yaw bearing. The mechanical locking device of the wind turbine generator set increases the braking torque when a yaw reducer is replaced or under bad meteorological conditions, and increases safety factors of yaw braking.

Description

technical field [0001] The invention relates to a locking device for rotating parts, in particular to a mechanical locking device for a yaw system of a wind power generating set, and belongs to the technical field of special power generation equipment. Background technique [0002] The yaw system is one of the important components of the wind turbine control system, and its main function is to correctly adjust its windward direction according to the operating conditions of the wind turbine. The yaw of the wind turbine is divided into three basic working states: clockwise yaw, counterclockwise yaw, and stop yaw. When the yaw reaches a reasonable position, the yaw system needs to be locked. At present, the yaw motor and hydraulic brake are used to ensure locking. However, when replacing the yaw reducer with problems, the yaw motor needs to be stopped. At this time, the hydraulic brake alone is required. The braking torque cannot meet the complete braking requirements; in add...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D11/00
Inventor 樊欣姚建明杨瑞袁东高海平王立峯陈小平
Owner JIANGSU WENDE NEW ENERGY
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