A vibration and noise test bench for wind turbine yaw braking system

Abstract

A vibration and noise test bench for the yaw brake system of a wind power generator, which is composed of upper and lower pressurization modules, a motor module and a base; Between the shrinkage sections of the guide rods, the upper guide rods are sequentially connected to the upper and upper friction sensors, normal force sensors and the upper back plate, and the upper brake pads are bonded to the upper back plate; except for the mounting components, the lower pressure module The structure is the same as that of the upper pressurization module, and the upper and lower parts are arranged symmetrically; the motor structure module is: the servo motor is connected with the reducer and installed in the hollow support, and the upper part of the output shaft of the reducer is fixed with a brake disc. The upper and lower loading modules and the hollow support are respectively fixed on the inverted T-shaped notches of the machine base through screws. The modular design of each part of the test bench is convenient for disassembly and modification. The upper and lower loading modules can be loaded simultaneously or separately, which can simulate Various working conditions of the above-mentioned braking system provide information on its frictional vibration and noise characteristics to explore the influence of different test parameters on the frictional vibration characteristics of the braking system.

Description

technical field [0001] The invention relates to a vibration and noise test device, in particular to a vibration and noise test bench for a yaw braking system of a wind power generator. Background technique [0002] The contradiction between energy, the environment and human survival and development is one of the urgent problems that must be solved today. As a green and sustainable new energy source, wind power can not only save the increasingly scarce common energy, but also reduce Environmental pollution has good economic and social benefits, and its superiority has received more and more attention. [0003] During the working process of the wind turbine, it is necessary to rotate the head and blades of the wind turbine with the change of the wind direction, so that it always faces the direction of the strongest wind force, so as to ensure the working efficiency of the wind turbine to the greatest extent. This process is Work process for yaw (windward). The yaw brake syst...

AI Technical Summary

Problems solved by technology

At present, due to the lack of necessary test equipment, the vibration and noise characteristics of the yaw braking system of wind turbines have not been systematically studied, and it is impossible to propose solutions to the unstable vibration and noise problems of the yaw braking system. ; At the same time, the life and reliability of its mechanical system cannot be effectively tested, which are major problems in the design and operation of wind turbines

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