LINEAR RACK-BASED ROTOR BLADE ADJUSTMENT MECHANISM

WIPO Patent Application WO/2016/183942

A1

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.

ZHANG XIAOXIN (CN)
ZHANG DAOYU (CN)
GUO JIAWEI (CN)
YAN XIAOXIU (CN)
ZHAO HAIPING (CN)
BAI JUNPING (CN)
ZHANG XIUGUO (CN)
JIA XUEJIAO (CN)
YANG FEI (CN)
HAN YANJIE (CN)
BAI ZHENYI (CN)
LIAN ZHICHAO (CN)

PCT/CN2015/085891

November 24, 2016

August 01, 2015

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ZHANG XIAOXIN (CN)

F03D1/06; F03D7/04

WO2009025765A2

2009-02-26

CN101718251A	2010-06-02
CN104005908A	2014-08-27
CN102859185A	2013-01-02
US5324164A	1994-06-28

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