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Testing bench for wind generating set wheel hub and variable pitch system loading testing

A technology for wind turbines and pitch systems, which is applied in the monitoring of wind turbines, wind turbines, engines, etc., can solve the problems of high construction cost of test benches and high requirements for hydraulic equipment, and achieve a simplified structure of the test bench and a small number of hydraulic devices. , the effect of reducing construction costs

Pending Publication Date: 2019-04-05
GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the few wheel hub and pitch system test benches today can generate sufficient loads on the pitch system and wheel hub, but because the load comes from hydraulic loads, the requirements for hydraulic equipment are high, resulting in high construction costs for the test bench.

Method used

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  • Testing bench for wind generating set wheel hub and variable pitch system loading testing
  • Testing bench for wind generating set wheel hub and variable pitch system loading testing

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Embodiment Construction

[0018] The present invention will be further described below in conjunction with specific examples.

[0019] see figure 1 and figure 2 As shown, the test bench for the loading test of the wind turbine hub and the pitch system provided by this embodiment includes the hub supporting tool 21, the main loading tool for statically and dynamically loading the hub and the pitch system, and A torque loading unit for applying a torque load to the main loading tool and an axial force loading tool for applying an axial force to the main loading tool. The hub support tooling 21 is fixed on the foundation plane 1, and is used to share the total load transferred from the load. The inclination of the plane can be adjusted. It can be made of steel, cast iron or concrete, and has a high bearing capacity. The plane type can include but not It is limited to steel plates, cast iron platforms, concrete, etc., and its connection and fixing methods include but not limited to, bolt connection, wel...

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Abstract

The invention discloses a testing bench for wind generating set wheel hub and variable pitch system loading testing. The testing bench comprises a wheel hub supporting tool, a main loading tool, a torque loading unit and an axial force loading tool; a wheel hub is supported and fixed by the wheel hub supporting tool, and a non-testing variable pitch bearing on the wheel hub is also fixed and constrained by the wheel hub supporting tool; one end of the main loading tool is connected with a flange of a variable pitch bearing needing to be tested on the wheel hub, the other end of the main loading tool extends outwards and is connected with the axial force loading tool through a conversion assembly, and a hydraulic cylinder is connected to the other end of the main loading tool; and the mainloading tool is provided with an installing position used for allowing a gravity load module to be fixedly installed in a reserved mode, and the torque loading unit is installed on the main loading tool and used for exerting torque loads to the main loading tool. According to the testing bench for wind generating set wheel hub and variable pitch system loading testing, static and dynamic loading on the torque, the bending moment, the radial shearing force and the axial force of a wheel hub and variable pitch system can be achieved, and the construction cost of the wheel hub and variable pitchsystem testing bench is reduced while the loading performance requirement is met.

Description

technical field [0001] The invention relates to the technical field of loading test of a hub of a wind power generator set and a pitch control system, in particular to a test bench for a load test of a hub of a wind power generator set and a pitch control system. Background technique [0002] For wind turbines, with the development of technology, the blade length and load are getting larger and larger, and the methods and equipment for verifying and testing the hub and pitch system of wind turbines are becoming more and more important. [0003] The existing pitch bearing test bench can only be used to test the pitch bearing, and cannot fully test and verify the entire pitch system. Moreover, due to the high stiffness of the pitch bearing test bench, it is impossible to simulate the correct deformation of the pitch bearing under load when it is installed on the hub. [0004] Therefore, in order to overcome the deficiencies of the pitch bearing test rig and further carry out ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F03D17/00
CPCF03D17/00F05B2260/83
Inventor 黎相昊黄成彦冯驹李俊威陈艳
Owner GUANGDONG MINGYANG WIND POWER IND GRP CO LTD
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