Title:
METHOD FOR CHANGING LOAD OF STRESSED PART OF VARIABLE PITCH BEARING
Document Type and Number:
WIPO Patent Application WO/2021/073369
Kind Code:
A1
Abstract:
A method for changing the load of a stressed part of a variable pitch bearing, the method comprising the following steps: determining a rotational speed difference between an inner ring (101) of the variable pitch bearing and a stressed part (103, 104), wherein the inner ring (101) is used for connecting to blades; and enabling the inner ring (101) and the stressed part (103, 104) to rotate relatively by a certain angle, such that the load of the stressed part (103, 104) changes, the probability that the same stressed part (103, 104) of the variable pitch bearing is always located in a heavy load area is reduced, and the service life of the variable pitch bearing is prolonged. The present invention also relates to a system for changing the load of a stressed part of a variable pitch bearing.
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Inventors:
LIANG BAOZHU (CN)
CHEN LIN (CN)
GAO XUEHAI (CN)
CAI ZHENGYU (CN)
CHEN LIN (CN)
GAO XUEHAI (CN)
CAI ZHENGYU (CN)
Application Number:
PCT/CN2020/116666
Publication Date:
April 22, 2021
Filing Date:
September 22, 2020
Export Citation:
Assignee:
SHEYANG ENVISION ENERGY CO LTD (CN)
International Classes:
F03D7/02; F03D80/70
Domestic Patent References:
| WO2015110138A1 | 2015-07-30 |
Foreign References:
| CN110821751A | 2020-02-21 | |||
| CN109469593A | 2019-03-15 | |||
| CN209212779U | 2019-08-06 | |||
| CN204099407U | 2015-01-14 | |||
| CN109753723A | 2019-05-14 | |||
| CN109281930A | 2019-01-29 | |||
| CN102132055A | 2011-07-20 | |||
| CN108603491A | 2018-09-28 | |||
| CN204175798U | 2015-02-25 |
Attorney, Agent or Firm:
SHANGHAI ZHISHENG INTELLECTUAL PROPERTY OFFICE (CN)
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