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High-power wind power generation variable-pitch speed reducer

A reducer, high-power technology, applied in wind turbine components, wind power generation, wind turbines, etc., can solve the problems of not fully mature technology, and achieve the effect of saving processing time, unique structure, and reducing costs

Inactive Publication Date: 2013-01-16
YINCHUAN WEILI REDUCER MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the domestic 1.5MW and 2.5MW yaw reducers have been mass-produced, while the design of the 2.5MW pitch reducer has just begun, and there is no fully mature technology.

Method used

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  • High-power wind power generation variable-pitch speed reducer

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Embodiment Construction

[0019] The high-power wind power generation variable pitch reducer of the present invention includes a motor, a motor base 8 is installed below the motor, and an organic casing is installed on the motor base 8, and the casing is composed of an upper body 6 and a lower body 2. The middle part of the motor base 8—the central axis of the motor main shaft is provided with a socket 9, and the bottom of the socket 9 is connected with a three-stage planetary gear set sequentially. Each stage of the planetary gear set is composed of a sun gear in the middle part, a planetary gear installed around the sun gear and meshed with it, a planetary carrier supporting the planetary gear, and an internal gear. There are 3 planetary gears, which are evenly distributed on the sun gear around. The internal gears of the first-stage and second-stage planetary gear sets are integrated with the upper body 6, the internal gears of the third-stage planetary gear set are connected back-to-back with the a...

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Abstract

The invention relates to a high-power wind power generation variable-pitch speed reducer. The high-power wind power generation variable-pitch speed reducer comprises a motor and a casing connected with the motor through a motor base below the motor, and is characterized in that three-level planetary gear groups are sequentially connectedly mounted on the central axis of a motor spindle in the casing, a third planetary carrier of a third-level planetary gear group is in transmission with an output shaft through a spline, and the output shaft and an open gear below the same are in an integral structure. The high-power wind power generation variable-pitch speed reducer has the technical advantages of compact and stable structure, large torque, high transmission efficiency, low cost and the like, and is capable of making use of wind energy to the maximum extent and improving electric energy production.

Description

technical field [0001] The invention relates to a speed reducer, in particular to a pitch variable speed reducer for high-power wind power generation. Background technique [0002] Wind power is the fastest growing new energy in the world. The main equipment for wind power generation is a wind turbine. The wind power generation pitch reducer plays a vital role in the pitch control system of the wind power generator. The pitch system absorbs the maximum wind energy by changing the direction of the pitch blades. The wind power generation pitch The main function of the reducer is to adjust the output speed of the variable frequency motor pitch reducer according to the wind speed, thereby increasing the power generation. The combination of the pitch system and the variable speed constant frequency technology improves the power generation efficiency and power quality of the wind power generation system. [0003] Due to the uncertainty of the natural wind speed, there are few win...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16H1/28F16H57/08F03D11/02
CPCY02E10/722Y02E10/72
Inventor 李阿波
Owner YINCHUAN WEILI REDUCER MACHINERY