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A Load Measurement Method for Sliding Bearings Based on Bearing Pad Deformation

A load measurement, sliding bearing technology, applied in mechanical bearing testing, using stable tension/pressure to test the strength of materials, etc. Effect

Active Publication Date: 2021-04-02
SHANGHAI MINGHUA ELECTRIC POWER TECH & ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This method will be limited by the structural space of the shaft system on site. For example, the end cover bearings at both ends of the generator cannot meet the requirements of the three measurement sections at both ends because they are integrated with the generator stator.

Method used

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  • A Load Measurement Method for Sliding Bearings Based on Bearing Pad Deformation
  • A Load Measurement Method for Sliding Bearings Based on Bearing Pad Deformation
  • A Load Measurement Method for Sliding Bearings Based on Bearing Pad Deformation

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Embodiment Construction

[0042] The present invention will be described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0043] Such as figure 1 and image 3 As shown, a strain gauge is arranged on the axis directly below the outer surface of the bearing bush 101 (the contact surface with the bearing seat 102 ) as the strain measuring point 103 , and the strain measuring point is sealed in an oil-proof manner. The strain gauge needs to use a strain gauge with temperature compensation function in order to eliminate the measurement error caused by temperature. In this way, in order to measure the linear deformation of the bearing bush along the circumferential direction at the strain measuring point in the actual installation state, it is denoted as ε x (0);

[0044] When the bearing bush is installed but the journal is not installed, a temperature self-compensating strain measurement unit is used to record and output the strain signal value ε 1 , that is, th...

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Abstract

The invention provides a method for measuring the load of a bearing through measuring the deformation of a bearing bush. The load exerting on the sliding bearing under an actual installation state iscomputed through testing the deformation of the bearing bush. Compared with the prior art, the sliding bearing load measurement method based on the deformation of the bearing bush has relatively highreliability, the measurement result also has the relatively high accuracy, the workload needing to be measured is small, and the method is applicable to the load tests of most sliding bearings, and has the relatively high popularization prospect.

Description

technical field [0001] The invention relates to a bearing load measurement method, in particular to a method for testing sliding bearing loads based on bearing shell deformation, which is used to test the loads borne by sliding bearings of various rotating machines in the actual installation state, in order to evaluate the alignment quality of shafting , Bearing installation quality and safe operating life to help. Background technique [0002] In modern industry, bearings are an important component of all kinds of rotating machinery, and are crucial to the safe and stable operation of the unit. A lot of research and practice have shown that the load on the bearing directly affects its working condition. If the bearing load is too heavy, it will cause failures such as high tile temperature, cracking of the black gold, and tile rolling; if the bearing load is too light, it is prone to failures such as oil film whirl and oil film oscillation. Both of these situations will ca...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04G01N3/08
CPCG01M13/04G01N3/08
Inventor 张世东王健
Owner SHANGHAI MINGHUA ELECTRIC POWER TECH & ENG