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Device for testing thermal stability of aviation rolling bearing

A rolling bearing and thermal stability technology, applied in the field of aeronautical rolling bearing thermal stability testing devices, can solve problems such as lack of thermal stability measuring equipment, and achieve the effects of easy expansion, improved performance and life, and simple structure

Active Publication Date: 2017-11-21
XIAN TECHNOLOGICAL UNIV
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a thermal stability testing device for aviation rolling bearings, which solves the problem of lack of dedicated thermal stability measuring equipment for various components of aviation rolling bearings in the prior art

Method used

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  • Device for testing thermal stability of aviation rolling bearing
  • Device for testing thermal stability of aviation rolling bearing
  • Device for testing thermal stability of aviation rolling bearing

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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the present invention is further described:

[0023] see Figure 1-Figure 3 A thermal stability testing device for aviation rolling bearings is shown, including a computer system, a working platform 1, a driving system 2, a testing system 3 and a loading system 4 arranged on the working platform 1;

[0024] Described test system 3 comprises test casing, and in the test casing, high-speed test main shaft 5 is set by support bearing group, and tested bearing 6 is set on high-speed test main shaft 5; The position of the rolling body is equipped with a temperature sensor, and the temperature sensor is connected to the computer system through the lead wire extending out of the casing;

[0025] The drive system 2 is connected with the computer system. The drive system 2 includes an electric spindle base 7 and a high-speed electric spindle 8 arranged on the electric spindle base 7. The output end of the high-speed electric spind...

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Abstract

The invention relates to a device for testing the thermal stability of an aviation rolling bearing. The device includes a computer system, a working platform, and a drive system, a test system and a loading system which are arranged on the working platform. The test system includes a test case. A high-speed test spindle is arranged in the test case through a support bearing group. A tested bearing is arranged on the high-speed test spindle. Temperature sensors are respectively arranged in an inner ring position, in an outer ring position and in a rolling body position of the tested bearing. The output shaft of a high-speed electric spindle of the drive system is connected with the high-speed test spindle through a coupling. The loading system includes a radial loading mechanism and a bearing loading body. The temperature sensors are arranged on the inner ring, the outer ring and the rolling body of the tested bearing in order to acquire a more comprehensive distribution law of the temperature field of an aviation rolling bearing. The key influence mechnism and the restraining method for the thermal instability of aviation rolling bearings can be measured and acquired, in order to improve the performance and life of rolling bearings.

Description

technical field [0001] The invention belongs to the technical field of bearing testing, and in particular relates to a thermal stability testing device for aviation rolling bearings. Background technique [0002] Rolling bearings are the rotating supporting components of mechanical equipment, and their thermal stability is a key issue when studying the lubrication failure of aviation rolling bearings. Once the thermal instability of the bearing occurs, its temperature will rise sharply, which will pose a great threat to its stable and reliable operation. For the judgment of the thermal stability of aviation rolling bearings, in the past, most of them relied on the combination of kinematics, dynamic analysis theory and simulation analysis methods to study, but it is difficult to make an accurate prediction of bearing life, and it is also impossible to accurately provide its failure mechanism and reliability analysis. result. From the analysis of the existing literature, it ...

Claims

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Application Information

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IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 李军宁吴宗保
Owner XIAN TECHNOLOGICAL UNIV
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