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Low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine

A technology for aerospace and bearing materials, which is applied in analyzing materials, testing wear resistance, and using mechanical devices. Stability and other issues, to achieve the effects of accurate and reliable measurement results, shortened response time, and high positioning accuracy

Active Publication Date: 2021-04-30
HENAN UNIV OF SCI & TECH
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Problems solved by technology

[0003] The loading systems of existing bearing friction testing machines include hydraulic loading and lever loading, etc., which have shortcomings such as unstable loading and slow response, and large measurement errors. At the same time, it is impossible to test the influence of rolling body spin on bearing friction performance, and Tribological behavior of angular contact ball bearings and lack of cooling system for bearing testing machines

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  • Low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine
  • Low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine
  • Low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine

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Embodiment Construction

[0030] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments.

[0031] Such as Figure 1-5 , the low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine of the present invention comprises a bearing material friction performance simulation testing machine main part ( figure 1 , figure 2 , image 3 , Figure 5 ), jet oil supply lubrication system ( Figure 4 ).

[0032] Such as figure 1 , figure 2 , image 3 , Figure 5 As shown, the main part of the bearing material friction performance simulation testing machine includes a loading system, a friction measurement system, a rotational displacement device, a specimen mounting device, a low temperature cooling device and a ball head mounting device.

[0033]Described loading system provides the vertical loading force that jacks up, and loading system comprises the power source...

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Abstract

A low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine comprises a loading system, a friction force measuring system, a ball head mounting device, a rotary displacement device, a test piece mounting device, a low-temperature cooling device and a jet oil supply lubricating system. The loading system provides upward jacking vertical loading force, the friction force measuring system is arranged above the loading system, the rotary displacement device and the friction force measuring system are arranged side by side, and the rotary displacement device comprises a horizontal displacement mechanism and a vertical rotating mechanism arranged on the horizontal displacement mechanism; the test piece mounting device is fixedly arranged above the rotary displacement device, and a low-temperature cooling pipe outlet of the low-temperature cooling device corresponds to the oil receiving disc and is used for cooling a test environment; and an outlet of an oil supply pipe of the jet oil supply lubricating system is arranged corresponding to a contact surface where a bearing material is in contact for oil injection lubrication. The testing machine is compact in structure, diverse in function and capable of accurately measuring friction torque and abrasion performance under the two states.

Description

technical field [0001] The invention relates to the field of bearing testing machines, in particular to a low-temperature multifunctional high-precision aerospace bearing material friction performance simulation testing machine. Background technique [0002] In the actual operation of aerospace ball bearings, the friction pair of the ball and the raceway contains a variety of mixed motion states of spin, sliding and rolling. The study of its friction characteristics is helpful for bearing dynamics simulation and research on rolling surface fatigue failure, etc. . For the low-temperature environment of aerospace, the lubrication method of ball bearings mostly adopts the self-lubrication of solid film transfer phenomenon. In addition, the friction performance of low-temperature oil lubrication in the actual working environment of aerospace bearings is also worth studying. Studying the friction characteristics of rolling element-cage and rolling element-raceway friction pairs ...

Claims

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Application Information

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IPC IPC(8): G01N3/56G01N19/02
CPCG01N3/56G01N19/02Y02T90/00
Inventor 苏冰李智昊刘丰波张广涛刘鹏王健张文虎邓四二
Owner HENAN UNIV OF SCI & TECH
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