Loading simulation device for test bed of wind turbine

Abstract

The invention discloses a loading simulation device for a test bed of a wind turbine. A driving shaft is connected with a flange and a mainshaft flange of the wind turbine by a single-flange flexible shaft coupler, a torque sensor, a flange and a loading shaft; two ends of the loading shaft are supported in the bearing seat respectively; one end of each of four vertical dual-action oil cylinders is connected with a base; the other end of each of the four vertical dual-action oil cylinders is symmetrically connected at two sides of a loading bearing seat respectively; one end of each of two axial dual-action oil cylinders is connected with the base respectively; the other end of each of the two axial dual-action oil cylinders is connected with the loading bearing seat close to the mainshaft flange end of the wind turbine mainshaft; one end of each of two connecting rods is connected on the base; and the other end of each of the two connecting rods is connected with the lower part of each of the two loading bearing seats. The loading simulation device can be used for simulating various loads under practical running conditions of the wind turbine; the oil cylinder in only one direction is arranged in radial plane; the vertical force is converted into horizontal force by the connecting rods, thus realizing the loading of any radial forces; the loading simulation device has a simple and compact structure, has the advantages of reducing the arrangement space and cost, and can be controlled conveniently.

Description

technical field [0001] The invention relates to a simulated loading device, in particular to a simulated loading device for a test bench of a wind power generating set. Background technique [0002] With the continuous aggravation of the energy crisis, wind power generation has become an important way to solve the energy crisis due to its environmental protection and sustainable characteristics. Due to the harshness of the wind turbine application environment and the special requirements for long life, high reliability and safety of the wind turbine, a wind turbine test bench is established to test important components of the wind turbine, such as gearboxes, main shafts, generators, etc. , which plays a very important role in optimizing product performance and ensuring product quality. [0003] Due to the complex actual operating conditions of wind turbines, the end of the main shaft will be subjected to the joint action of six degrees of freedom forces and moments in space...

AI Technical Summary

Problems solved by technology

Most of the traditional wind turbine test benches only simulate the torque around the main shaft axis generated by the rotation of the wind wheel; the patent CN101614615B uses three hydraulic cylinders to realize the loading of 4 degrees of freedom according to the force characteristics of the helicopter tail reducer; the patent CN201680969U uses 12 One hydraulic cylinder loads the wind turbine test bench, but there is a constraint relationship between the forces exerted by the four hydraulic cylinders in the radial plane, which greatly increases the difficulty of control, and too many hydraulic cylinders lead to a large space. ,high cost

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