Method and system for monitoring pitch bearing

A pitch bearing and monitoring system technology, applied in the direction of physical/chemical change thermometers, measuring forces, measuring devices, etc., can solve problems such as large ambient temperature gradient, harsh environment, failure of pitch bearings, etc., and achieve optimal design parameters , the effect of reducing the probability of failure

Active Publication Date: 2017-05-10
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Moreover, the working environment of the pitch bearing is harsh, and the ambient temperature gradient is large, and the pitch bearin

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  • Method and system for monitoring pitch bearing
  • Method and system for monitoring pitch bearing
  • Method and system for monitoring pitch bearing

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Embodiment Construction

[0024] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings and examples. The detailed description and drawings of the following embodiments are used to illustrate the principle of the present invention, but not to limit the scope of the present invention, that is, the present invention is not limited to the described embodiments.

[0025] In the description of the present invention, it should be noted that unless otherwise specified, the meaning of "several" is one or more; the meaning of "plurality" is two or more; the terms "upper" and "lower" , "Left", "Right", "Inner", "Outer", "Front", "Rear", "Head", "Tail" and other indicated directions or positional relationships are based on the directions shown in the drawings or The positional relationship is only for the convenience of describing the present invention and simplifying the description, but does not indicate or imply that the referred device or e...

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Abstract

The invention relates to a method and system for monitoring a pitch bearing. The pitch bearing (100) comprises bearing end faces (130, 140) and bolt holes (1 to 54) disposed on the bearing end faces (130, 140). The monitoring method comprises: using a fiber bragg grating sensing measuring system (500) to monitor the temperature and strain parameters of the bearing end faces (130, 140) or the bolt holes (1 to 54); and using the temperature parameters to correct the strain parameters of the bearing end faces (130, 140) or the bolt holes (1 to 54) to obtain actual strain parameters.

Description

technical field [0001] The invention relates to the technical field of monitoring bearings, in particular to a monitoring method and a monitoring system for variable pitch bearings. Background technique [0002] Energy is the main material basis of social economy and human life, and the driving force of social development. However, the reserves of non-renewable energy such as petroleum, coal, and natural gas, which are the main pillars of energy in the world, are decreasing day by day. All countries in the world are developing wind power generation. As a new energy source, wind power generation has formed a mature scale. [0003] A wind turbine is a device that converts wind energy into electrical energy. In a wind turbine, the pitch bearing, as the connecting part between the blade and the hub, plays a very important role in the pitch change process of wind power generation. Pitch adjustment is to change the angle of attack of the airflow on the blades by adjusting the ang...

Claims

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Application Information

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IPC IPC(8): G01D21/02G01K11/32G01L1/24G01K11/3206
CPCG01D21/02G01K11/3206G01L1/246
Inventor 聂峰
Owner BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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