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Device and method for evaluating abrasion resistance of bearing retainer

A bearing cage and wear resistance technology, applied in the field of tribology, can solve the problems of long evaluation time and inconsistent evaluation indicators, and achieve the effects of short evaluation time, low cost and simple operation

Pending Publication Date: 2019-05-10
SOUTHWEAT UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the traditional friction and wear evaluation method cannot truly reflect the operating conditions of the cage, and it also has the disadvantages of long evaluation time and inconsistent evaluation indicators.

Method used

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  • Device and method for evaluating abrasion resistance of bearing retainer
  • Device and method for evaluating abrasion resistance of bearing retainer
  • Device and method for evaluating abrasion resistance of bearing retainer

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0056] A method for evaluating the wear resistance of a bearing cage using the above-mentioned device for evaluating the wear resistance of a bearing cage includes the following steps:

[0057] Step 1. Add 10-18 mesh white corundum abrasives into the frequency conversion vibrator;

[0058] Step 2. Weigh the mass of the bearing cage to be tested. The polyimide cage used is used. The measurement accuracy of the microcrystalline balance for measuring the cage should be 0.001g. The cage to be tested is measured 3 times, and the obtained The average weight is 2.1302g; then fix the bearing cage to be tested on the motor shaft of the motor through the cage fixture; fix the motor on the lifting platform through the motor fixture and L-shaped cantilever; paste reflective paper on the back of the cage fixture , used to measure the cage speed;

[0059] Step 3. Completely immerse the bearing cage into the abrasive material of the frequency conversion vibrator through the lifting platform...

Embodiment 2

[0063] A method for evaluating the wear resistance of a bearing cage using the above-mentioned device for evaluating the wear resistance of a bearing cage includes the following steps:

[0064] Step 1. Add 10-18 mesh white corundum abrasives into the frequency conversion vibrator;

[0065] Step 2. Weigh the mass of the bearing cage after the experiment of Example 1 is completed. The measurement accuracy of the microcrystalline balance for measuring the cage should be 0.001g. The cage to be tested is measured 3 times, and the average weight obtained is 2.0421g; Then fix the bearing cage to be tested on the motor shaft of the motor through the cage fixture; fix the motor on the lifting platform through the motor fixture and L-shaped cantilever; stick reflective paper on the back of the cage fixture for measuring the cage Rotating speed;

[0066] Step 3. Completely immerse the bearing cage into the abrasive material of the frequency conversion vibrator through the lifting platfo...

Embodiment 3

[0070] A method for evaluating the wear resistance of a bearing cage using the above-mentioned device for evaluating the wear resistance of a bearing cage includes the following steps:

[0071] Step 1. Add 10-18 mesh white corundum abrasives into the frequency conversion vibrator;

[0072] Step 2. Weigh the mass of the bearing cage after the experiment of Example 2 is completed. The measurement accuracy of the microcrystalline balance for measuring the cage should be 0.001g. The cage to be tested is measured 3 times, and the average weight obtained is 1.9725g; Then fix the bearing cage to be tested on the motor shaft of the motor through the cage fixture; fix the motor on the lifting platform through the motor fixture and L-shaped cantilever; stick reflective paper on the back of the cage fixture for measuring the cage Rotating speed;

[0073] Step 3. Completely immerse the bearing cage into the abrasive material of the frequency conversion vibrator through the lifting platfo...

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Abstract

The invention discloses a device and method for evaluating abrasion resistance of a bearing retainer. The device comprises a base, an L-shaped cantilever, a motor, a retainer clamp, a variable frequency vibrator, an acceleration sensor and a rotating speed sensor; a lifting table is connected to the base; the horizontal end of the L-shaped cantilever is connected to the lifting table; the motor isconnected to the vertical end of the L-shaped cantilever; the retainer clamp is used for being connected with the bearing retainer and connected with a motor shaft of the motor, and reflective paperis pasted to the back face of the retainer clamp; an abrasive material is placed in the variable frequency vibrator; the retainer clamp is immersed in the abrasive material of the variable frequency vibrator through ascending and descending of the lifting table, and the variable frequency vibrator is placed in a dustproof box; the acceleration sensor is arranged on the upper surface of the variable frequency vibrator; and the rotating speed sensor is used for measuring the rotating speed of the bearing retainer and located above a vibration sensor, and faces the bearing retainer in the abrasive material. The device and method for evaluating the abrasion resistance of the bearing retainer are proposed in a random point contact abrasion mode, the operating conditions of the retainer can be really simulated, and the abrasion resistance of multiple surfaces of the retainer is evaluated simultaneously.

Description

technical field [0001] The invention belongs to the field of tribology. The method and device of the invention can simulate the friction, wear and impact behavior of the bearing cage and the rolling elements, inner and outer rings during high-speed operation, and then quickly and effectively evaluate the wear resistance of the cage . Background technique [0002] As one of the core components of precision mechanical systems, the tribological properties of precision bearings directly determine the reliability and stability of the entire mechanical system. The cage is a key component of precision bearings, and the cage has various forms and many processing and forming processes, and unpredictable defects will inevitably occur during the production and processing process. Small defects on the cage may lead to abnormal wear of the cage during operation, causing the failure of the entire system. For example, in the field of aerospace, slight wear of the cage of the gyro motor an...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04G01N3/56
Inventor 张亚锋张韶华周刚张激扬卿涛周宁宁姚永瑰
Owner SOUTHWEAT UNIV OF SCI & TECH
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