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Bearing test result evaluation method

A technology of result evaluation and bearing test, which is applied in the direction of mechanical bearing test, mechanical component test, machine/structural component test, etc., can solve the problems that cannot meet the assessment requirements of aviation bearing test, and there is no evaluation method of bearing test result, etc., to achieve The effect of speeding up the process of localization substitution and complete standard content

Pending Publication Date: 2021-02-26
AVIC HARBIN BEARING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention provides an evaluation method for bearing test results based on the problem that there is no special evaluation method for bearing test results in China and cannot meet the assessment requirements of aviation bearing tests

Method used

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  • Bearing test result evaluation method

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Experimental program
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specific Embodiment approach 1

[0034] Specific Embodiment 1: In this embodiment, a bearing test result evaluation method includes steps before the test, steps during the test and steps after the test;

[0035] Step 1: The steps before the test include:

[0036] Step 11: test bearing inspection;

[0037] Step 1 and 2: Test equipment inspection;

[0038] Step 13: Installation and debugging;

[0039] Step 2: The steps in the test include:

[0040] Step 21: During the test, monitor the bearing speed, load, temperature, oil supply pressure, oil inlet and outlet temperature, and vibration of the main body of the testing machine;

[0041] Step 2 and 2: The test personnel conduct inspections and records according to the regulations, do a good job in equipment inspection and maintenance, and ensure that the equipment systems are in good condition;

[0042] Step 2 and 3: If any abnormality is found in the test, stop the machine for inspection, find out the cause or dismantle the machine to check the bearing, and ...

specific Embodiment approach 2

[0063] Specific implementation mode 2: The difference between this implementation mode and specific implementation mode 1 is: the standard for checking the test bearing in step 11 is: ①, the state of the test bearing should be consistent with the bearing pattern; ②, the quality certification documents of the test bearing should be complete, and Consistent with the real thing; ③. The test bearing is clean in appearance, free of scratches, bruises and corrosion. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0064] Specific implementation mode three: the difference between this implementation mode and specific implementation mode one or two is: the standard for checking the test equipment in step one or two is: 1. The test equipment should be checked and accepted by appraisal, and regular maintenance and maintenance should be carried out to ensure The test equipment is in good condition; ②, the measuring equipment used for the test should be verified or calibrated, meet the test requirements, and be within the validity period; ③, whether the speed, load, oil supply temperature and oil supply pressure control accuracy of the test equipment meet the requirements, that is, the requirements The speed error is not greater than ±1%F.S, the load error is not greater than ±2%F.S, the oil supply temperature error is not greater than ±2%F.S, and the oil supply pressure error is not greater than ±5%F.S. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a bearing test result evaluation method, relates to aero-engine bearing test method research, and belongs to the field of bearing operation test. The invention aims to solve the problem that no special bearing test result evaluation method exists in China at present and the aviation bearing test assessment requirements cannot be met. The method specifically comprises the steps of carrying out test preparation; carrying out installing and debugging; monitoring bearing rotating speed, load, temperature, oil supply pressure, oil inlet and return temperature and testing machine main body vibration in the testing process; enbaling a tester to carry out inspection and recording according to regulations, carry out equipment inspection and maintenance, so as to ensure thatall system states of the equipment are intact; if abnormity is found in the test, carrying out shutdown inspection, reason finding or disassembly for bearing inspection, and evaluating the test bearing; carrying out spectral analysis on lubricating oil in the test process; after the test is completed, collecting, sorting, processing and analyzing test records and all original data, and judging whether the bearing passes the test assessment or not. The method is suitable for judging the bearing quality.

Description

technical field [0001] The invention relates to the research on a test method of an aero-engine bearing, and belongs to the field of bearing operation test. Background technique [0002] Bearing test refers to the operation of the bearing under certain working conditions to verify whether the bearing meets the expected performance and service life requirements. In the past, due to the limitation of domestic aviation bearing special tester resources, bearing manufacturers generally lacked the necessary test verification means. The performance evaluation and life determination of aero-engine bearing products mainly depended on the engine bench test and aircraft test flight of the host unit. Not only It has caused a great waste of resources and funds, and has also brought great hidden dangers to the safety of aircraft flight. In recent years, with the country's emphasis on national defense and military industry, the localization of aviation bearings has become imperative. The...

Claims

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Application Information

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IPC IPC(8): G01M13/04G01M13/045
CPCG01M13/04G01M13/045
Inventor 栾景燕杨明亮安浩俊闫众孙明辉张大鹏张翔宇王振元李慧边立春苗生成
Owner AVIC HARBIN BEARING
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