Test system and test method of wind turbine generator main shaft bearing
A technology for main shaft bearings and wind turbines, applied in the direction of mechanical bearing testing, etc., can solve the problems of not considering the influence of operating environment bearings, unfavorable quality assurance of high-power main shaft bearings, etc., and achieve the effect of meeting the needs of performance testing
Active Publication Date: 2015-06-24
SINOVEL WIND GRP
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Problems solved by technology
This kind of test is only carried out according to the usual requirements of the bearing torque, speed, etc., without considering the actual operating environment of the bearing and the influence of other wind power facilities on the bearing, which is not conducive to the quality assurance of high-power spindle bearings
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[0026] The main shaft bearing in the wind turbine is an important part of the wind power generator. The main shaft bearing is arranged between the hub of the fan and the gearbox, the blades are installed on the hub, one end of the main shaft is connected to the hub through the bearing, and the other end of the main shaft is connected to the gearbox. , the main shaft bearing is responsible for absorbing the various forces and overturning moments brought by the wind load, and at the same time transmits the torque to the gearbox. The operating environment of the main shaft bearing is harsh. Therefore, the main shaft bearing is required to have high quality and reliability. Therefore, an embodiment of the present invention provides a wind turbine main shaft bearing testing system, which can simulate the operation of the main shaft bearing when the wind turbine is running in a real environment, so as to test the performance of the main shaft bearing.
[0027] figure 1 The block dia...
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The invention discloses a test system and a test method of a wind turbine generator main shaft bearing. The test system comprises a controller, a voltage control switch, a frequency converter, a drive motor and a hydraulic loading device, wherein the controller is respectively connected with the frequency converter, the hydraulic loading device and the voltage control switch, the voltage control switch is connected with a drive voltage source, the frequency converter is respectively connected with the drive voltage source and the drive motor, an output shaft of the drive motor is connected with the main shaft bearing needed to be tested, and the hydraulic pressure loading device is connected with a main shaft bearing needed to be tested. By stimulating the actual operating environment of the bearing and influence of other wind electricity appliances to the bearing, realizing the complete simulation of a wind load, the test system and the test method test the performance of the bearing when the bearing is operated under different working conditions, and thus test requirements to the wind turbine generator main shaft bearing is met.
Description
technical field [0001] The invention relates to wind power generation technology, in particular to a testing system and testing method for a main shaft bearing of a wind turbine. Background technique [0002] In wind power generation, the main shaft bearing of the unit is an important part of the wind power generating unit. The torque is transmitted to the gearbox. Therefore, the operating environment of the main shaft bearing is harsh, which requires the main shaft bearing to have high quality and reliability, and the wind power industry requires that the service life of the main shaft bearing is not less than 20 years. [0003] At present, the bearing industry has no corresponding detection and testing technology for wind power main shaft bearings, especially high-power main shaft bearings. The quality test of main shaft bearings is carried out by the main shaft bearing manufacturers. This kind of test is only carried out according to the usual requirements of bearing tor...
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IPC IPC(8): G01M13/04
Inventor 王兆奎李文剑马文勇辛理夫李磊
Owner SINOVEL WIND GRP