A straight rack wind rotor blade adjustment mechanism

Abstract

Provided is a linear rack based rotor blade adjustment mechanism, comprising: a drive motor fixation disc (2), a cylindrical nacelle wall (6), a front rack fixation disc (5), a rear rack fixation disc (12), a front pressure plate (1), a rear pressure plate (8), a gear rack mechanism, a screw nut mechanism, slide bar bearing pedestals (9), a sliding rod bearing (10), and a slide bar (11). The front pressure plate (1) is connected to the drive motor fixation disc (2). Three slide bar bearing pedestals (9) are evenly disposed on the rear pressure plate (8). A blade shaft (7) passing through a bearing (13) is mounted on the cylindrical nacelle wall (6). A gear (14) is fixed to the end of the blade shaft (7) at the inner side of the cylindrical nacelle wall (6) so as to engage with a rack (15). A nut (5) is fixed to the center of the front rack fixation disc (5). A screw (3) fits the nut (5) and is connected with an output mechanism of a power unit (16). The driving method is changed by changing the structure of the blade adjustment mechanism, thereby increasing the driving stability and precision.

Description

technical field [0001] The invention relates to the technical field of wind power generation equipment, in particular to a straight rack type wind rotor blade adjustment mechanism. Background technique [0002] The wind turbine blade adjustment mechanism is connected with the power unit to drive the main transmission part to move, and the windward angle of the blade is adjusted through the transmission of the transmission mechanism. [0003] At present, some wind turbine blades are installed at a fixed angle, and some are independently adjusted for the blade angle. The independent adjustment of blade angle is poor in synchronization. [0004] In addition, the gear structure of a single-frame impeller disclosed in the invention patent application number 201410561011.7 and the utility model patent ZL201420608931.5 is also not ideal in terms of blade angle control. As a result, the overall operation and unit power generation cost are still unsatisfactory. Contents of the in...

AI Technical Summary

Problems solved by technology

The blade angle is independently adjusted and the synchronization is poor

[0004] In addition, the gear structure of a single-frame impeller disclosed in the invention patent and utility model patent ZL201420608931.5 of the invention patent application number 201410561011.7 is not ideal in terms of blade angle control

As a result, the overall operation and unit power generation cost are still unsatisfactory

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