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Oar-changing bearing test methods for wind power generator

A technology for wind turbines and pitch bearings, which is applied in the direction of mechanical bearing testing, etc., can solve the problems of affecting the speed of bearing improvement, the cycle and cost of installation and commissioning, and the use performance affecting the safe use of wind power generation equipment, etc., to ensure the qualified efficiency, and the effect of ensuring safe use performance

Active Publication Date: 2010-06-02
WAFANGDIAN BEARING GRP CO LTD
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AI Technical Summary

Problems solved by technology

[0002] At present, there is still a blank in the field of performance and life testing of large slewing bearings in China. The performance and life testing of large slewing bearings can only be carried out in the actual operation of industrial sites. The analysis of bearings through operating data seriously affects the speed of bearing design improvement.
Especially for wind power generation equipment, the installation and commissioning cycle and cost of each bearing are very large, and the service performance and safety life of the bearing directly affect the safe use performance of wind power generation equipment

Method used

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  • Oar-changing bearing test methods for wind power generator
  • Oar-changing bearing test methods for wind power generator

Examples

Experimental program
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Embodiment Construction

[0027] Such as figure 1 As shown, the test bearing is installed on the wind turbine pitch bearing test machine according to the actual working conditions; the test is divided into three parts:

[0028] The first part: dynamic loading test;

[0029] The second part: static load loading test;

[0030] The third part: dynamic and static load staggered test;

[0031] (1) Dynamic load loading test:

[0032] (1) Carry out 25%, 50%, 75%, 100% dynamic load loading tests, and keep them for 30 minutes respectively, and check whether the connections are loose;

[0033] (2) Carry out running tests under the conditions of 25%, 50%, 75%, and 100% dynamic loads, respectively run for 3 minutes, and run at a speed of 1.5r / min;

[0034] (3) Carry out running tests under the conditions of 25%, 50%, 75%, and 100% dynamic loads, respectively run for 10 minutes, and run at a speed of 1.5r / min;

[0035] (4) Carry out running tests under the conditions of 25%, 50%, 75%, and 100% dynamic loads, r...

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Abstract

The invention belongs to the technical field of manufacture and performance detection of a variable propeller bearing of a wind motor, and in particular relates to a method for testing the variable propeller bearing of the wind motor, which is a novel means for detecting the performance and the service life of a large turntable bearing. The test method is to perform three bearing tests, includinga dynamic load loading test, a static load loading test and a dynamic and static load staggered test, and examines the comprehensive quality level of the bearing according to test result analysis. Thetest method has the advantages of not only guaranteeing the ex factory pass rate of products but also guaranteeing the safety service performance of the wind motor.

Description

Technical field [0001] The invention belongs to the technical field of manufacturing and performance testing of pitch bearings for wind power generators, in particular to a test method for pitch bearings of wind power generators, which is a new means for performance and life testing of large slewing bearings. Background technique [0002] At present, there is still a blank in the field of performance and life testing of large slewing bearings in China. The performance and life testing of large slewing bearings can only be carried out in the actual operation of industrial sites. The analysis of bearings through operating data seriously affects the speed of bearing design improvement. . Especially for wind power generation equipment, the installation and commissioning cycle and cost of each bearing are very large, and the service performance and safe life of the bearing directly affect the safe use performance of wind power generation equipment. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
Inventor 谢盈忠曲圣贤胡栋徐四宁陈澍尹福刚
Owner WAFANGDIAN BEARING GRP CO LTD
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