Wind turbine coupling slip torque calibration test bench and calibration method

Abstract

The invention relates to a wind turbine coupling slip torque calibration test bench and a calibration method, which are especially suitable for simulating the actual working environment for the slip torque calibration test in the development and delivery of the wind turbine coupling. The test bench of the present invention is mainly composed of a bench, a base plate, a torque loading mechanism, a torque output detection mechanism, a hydraulic system, and a computer control system; during the test, the wind turbine coupling is firstly installed on the test bench, and the hydraulic swing oil cylinder is activated. The wind turbine coupling is loaded through the torque loading mechanism, and the load is applied to the tension and pressure sensor through the torque output detection mechanism, and the transmission torque is indirectly detected; when the torque limiter of the wind turbine coupling slips, the computer control system A sudden change in torque on the torque-angle curve is monitored, which is the slip torque of the wind turbine coupling. The present invention is also applicable to the calibration of slip torque of other types of couplings or transmission shafts.

Description

technical field [0001] The invention relates to a slip torque calibration test bench and a calibration method of a wind power generator coupling, which is particularly suitable for performing a slip torque calibration test by simulating the actual working environment during the development and delivery of the wind power generator coupling. Background technique [0002] Wind turbines rely on wind power to drive the propeller to rotate, increase the speed through the gear gearbox, and connect the output shaft of the gear gearbox and the rotor shaft of the generator through the wind turbine coupling to convert wind energy into electrical energy. When the wind turbine generator transmission torque exceeds its limit, the torque limiter on the wind turbine generator coupling slips to protect it from damage. The slip torque needs to be calibrated during the development and delivery of the wind turbine coupling to meet the requirements of stable operation of the wind turbine system....

AI Technical Summary

Problems solved by technology

The existing problems of the currently used wind turbine coupling slip torque calibration test bench and calibration method are: 1. Driven by a linear hydraulic cylinder, the rear end of the cylinder is hinged to the base, the piston rod of the cylinder is hinged to the swing block, and the swing block is fixed on the The input end of the generator coupling, so that the reciprocating linear motion of the piston rod of the oil cylinder is changed into the reciprocating swing of the coupling. The disadvantage of this method is that the mechanism is relatively complicated, which is inconsistent with the actual driving state of the wind turbine coupling. During the test, the vibration is very large; 2. The torque detection device at the output end of the wind turbine coupling adopts a large torque sensor, and the price is relatively high; 3. During the test, the torque limiter is judged to be slipping by drawing a line on the torque limiter and observing whether it is misplaced , which will cause a delay in the test judgment and a large error in the calibration of the slip torque

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