Monitoring method and monitoring system for pitch bearing

A technology of variable pitch bearings and monitoring systems, which is applied in the direction of physical/chemical change thermometers, force measurement, and measurement of the change force of optical properties of materials when they are stressed, and can solve the problem of large environmental temperature gradients and harsh environments. , Pitch bearing failure and other problems, to achieve the effect of optimizing design parameters and reducing the probability of failure

Active Publication Date: 2019-05-10
BEIJING GOLDWIND SCI & CREATION WINDPOWER EQUIP CO LTD
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  • Summary
  • 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 bearing may also cause failure due to temperature changes affecting the lubrication of the grease and the characteristics of the material.

Method used

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  • Monitoring method and monitoring system for pitch bearing
  • Monitoring method and monitoring system for pitch bearing
  • Monitoring method and monitoring system for 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 monitoring method and a monitoring system for pitch bearings. The pitch bearing (100) includes a bearing end face (130, 140) and bolt holes (1-54) opened on the bearing end face (130, 140), wherein the monitoring method includes: using a fiber grating The sensing and measuring system (500) monitors the temperature parameters and strain parameters of the bearing end surfaces (130, 140) or the bolt holes (1-54); and uses the temperature parameters to monitor the bearing end surfaces (130, 140) or the strain parameters of the bolt holes (1-54) are corrected 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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Patent Type & Authority Patents(China)
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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