Main shaft fatigue detection equipment for wind generating set

Abstract

The invention relates to a wind driven generator, and discloses a main shaft fatigue detection device for a wind generating set, which comprises a main shaft, a detection ring for ultrasonic flaw detection on the surface of the main shaft is sleeved on the main shaft, and two ends of the main shaft are also provided with installation assemblies for installing the detection ring and keeping relatively static when the main shaft rotates. A driving assembly for driving the detection ring to reciprocate is arranged on the mounting assembly, a speed reducer for adjusting the rotating speed is further arranged between the driving gear ring and the driving screw rod, and a connecting mechanism for controlling the input end of the speed reducer to be connected with the driving gear ring is arranged in the speed reducer. The surface of the main shaft can be intermittently scanned and detected by the detection ring in the horizontal direction, rotation of the main shaft does not need to be stopped, intelligent main shaft flaw detection is achieved, meanwhile, the power generation efficiency of the main shaft is not affected, the overall practicability of the detection equipment is further improved, shaft diameter changes of different sections of the main shaft can be adapted, and the detection efficiency is improved. And adaptive rapid clamping installation is achieved.

Description

technical field [0001] The invention relates to a wind power generator, in particular to a main shaft fatigue detection device for a wind power generator. Background technique [0002] A wind turbine is a power device that converts wind energy into mechanical work, which drives the rotor to rotate, and finally outputs alternating current. Wind turbines are generally composed of components such as wind rotors, generators (including devices), steering devices (tail fins), towers, speed-limiting safety mechanisms, and energy storage devices. The working principle of the wind generator is relatively simple. The wind wheel rotates under the action of the wind, which converts the kinetic energy of the wind into the mechanical energy of the main shaft, and the generator rotates to generate electricity under the drive of the main shaft. In a broad sense, wind energy is also solar energy, so it can also be said that a wind generator is a thermal energy utilization generator that use...

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Problems solved by technology

[0005] Aiming at the deficiencies of the existing technology, the present invention provides a main shaft fatigue detection device for wind power generators, which has the advantages of fast installation of the main shaft diameter adaptability, etc., and solves the inconvenience of real-time monitoring on the surface of the main shaft of the wind power generator in the prior art, etc. series of questions

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