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Axial loading device and bearing test bench

An axial loading and axial technology, which is applied in mechanical bearing testing and other directions, can solve problems such as inability to simulate bearings and affect the accuracy of test results, and achieve the effect of ensuring accuracy

Pending Publication Date: 2021-05-07
LUOYANG BEARING RES INST CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an axial loading device to solve the technical problem that the bearing test device in the prior art cannot simulate the working condition of the bearing in the vibration process, which affects the accuracy of the test results; the purpose of the present invention is also to Provide a bearing test bench

Method used

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  • Axial loading device and bearing test bench

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Such as figure 1 and figure 2 As shown, the bearing test bench includes a frame body 21, a main shaft support is arranged inside the frame body 21, a main shaft 26 is arranged on the main shaft support, and the axial direction of the main shaft 26 is the front and rear direction, and the rear end of the main shaft 26 is provided with an axial loading device and vibration device, the front end of the main shaft 26 is provided with a main shaft driving device, and the main shaft driving device is used to drive the main shaft 26 to rotate.

[0059] In this embodiment, the rear end of the main shaft 26 is provided with a bearing 25 to be tested, the inner ring of the bearing 25 to be tested is fixed on the main shaft 26, and its outer ring is fixed on the holder 32; The outer ring of the bearing 25 applies an axial loading force, and the vibration device is used to provide vibration to the bearing 25 to be tested. Wherein, a vibration sensor 24 is fixed on the fixing sea...

Embodiment 2

[0074] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the driving cylinder is an annular loading cylinder 19, and the annular loading cylinder 19 includes a plunger 192, the front end of the plunger 192 is fixedly connected with the loading plate 29, and the plunger 192 has a hollow cavity body, the loading rod 18 passes through the hollow cavity and is connected to the front end cover 27 in transmission. In this embodiment, based on the transmission connection between the loading rod and the front end cover, the driving cylinder is a common oil cylinder. There are at least two common oil cylinders arranged at intervals along the circumference of the loading rod. The driving end of the common oil cylinder is in transmission connection with the loading plate.

Embodiment 3

[0076] The difference between this embodiment and Embodiment 1 is that in Embodiment 1, the loading end cover includes a front end cover 27 and a rear end cover 30, the annular loading oil cylinder 19 includes a plunger 192, and the front end of the plunger 192 is fixedly connected with the loading plate 29, and the loading A compression spring is provided between the plate 29 and the corresponding end cap to realize the transmission. In this embodiment, the front end of the plunger is not provided with a loading plate, but is directly fixedly connected with the front cover to realize transmission. In other embodiments, no rear cover may be provided.

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Abstract

The invention relates to an axial loading device and a bearing test bench. The axial loading device comprises a loading end cover which is used for transmitting axial loading force and vibration to the outer ring of a bearing to be tested; a loading rod having one end in transmission connection with the loading end cover and the other end in transmission connection with a vibration device, and used for transmitting vibration to the loading end cover, and a driving cylinder arranged in parallel with the loading rod; the driving cylinder is provided with a driving end, and the driving end is in transmission connection with the loading end cover so as to provide axial loading force for the loading end cover. The axial loading device can transmit the axial load to the loading end cover through the driving cylinder so as to realize the axial load of the bearing to be tested, and can transmit the vibration to the loading end cover through the loading rod so as to realize the vibration of the bearing to be tested, so that the axial loading device can complete the axial loading of the bearing to be tested under the condition of vibration. And the accuracy of a test result is ensured.

Description

technical field [0001] The invention relates to an axial loading device and a bearing test stand. Background technique [0002] The traction motor bearing is one of the key components in the motor vehicle, and its performance and quality have a great influence on the performance and safety of the motor vehicle. Therefore, the traction motor bearing needs to pass the operation test and meet the standard before it can be put into use. [0003] The Chinese invention patent application with the application publication number CN109855870A discloses a bearing test device, including a device base, a main shaft support is arranged on the device base, a main shaft is rotated on the main shaft support, and a bearing to be tested and a radial shaft are mounted on the main shaft. Supporting bearings; the bearing test device includes a main shaft drive device, an axial loading device and a radial loading device. The main shaft driving device and the axial loading device are respectively ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01M13/04
CPCG01M13/04
Inventor 刘佳申志新马德锋李斑虎张海鹏杨啸高卫锋
Owner LUOYANG BEARING RES INST CO LTD
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