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An accelerated fatigue test device for heavy-duty rolling bearings

A rolling bearing and fatigue test technology, applied in the field of mechanical engineering, can solve the problems of non-critical component fault interference, low signal-to-noise ratio of collected signals, low test safety factor, etc., to eliminate non-critical components interference, simple maintenance, and reduce signal attenuation. Effect

Active Publication Date: 2017-09-12
KUNMING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an accelerated fatigue test device for heavy-loaded rolling bearings to solve the problem of low signal-to-noise ratio of the collected signal, inability to load strong loads, and problems caused by the introduction of a large amount of interference noise and the large signal attenuation caused by the long transmission path in the existing test device. The safety factor of the test is not high, the non-key component failure interference that may exist in the test, the overall life of the test bench is reduced due to lack of lubrication, etc., and the test cycle is long.

Method used

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  • An accelerated fatigue test device for heavy-duty rolling bearings
  • An accelerated fatigue test device for heavy-duty rolling bearings
  • An accelerated fatigue test device for heavy-duty rolling bearings

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0053] Embodiment 1: as Figure 1-20 As shown, a heavy-load rolling bearing accelerated fatigue test device includes a driving device, a transmission device, a test device, a loading device, a guide rail device, and an anti-overload protection device; wherein the guide rail device is placed on the ground, and the drive device, transmission device, and test The test device and the loading device are installed on the guide rail device, the driving device is connected to one end of the transmission device, the other end of the transmission device is connected to one end of the test device, the other end of the test device is connected to the loading device, and the drive device and the transmission device are connected to each other. Between, the transmission device and the loading device are connected through an anti-overload protection device.

[0054] The driving device includes a motor 1 and a shaft coupling 2; the motor 1 is installed on the slide block 22 of the guide rail ...

Embodiment 2

[0067] Embodiment 2: as Figure 1-20 As shown, it is basically the same as Example 1, the difference is: a kind of accelerated fatigue test device for heavy-duty rolling bearings,

[0068] The sensor housing chamber 18 is provided with 8 outlets, and the unused outlets are sealed by sound-insulating rubber blocks 25 .

[0069] One end of the shaft coupling 2 is threadedly connected to the drive shaft of the motor 1; one end of the transmission shaft 3 is threadedly connected to the shaft coupling 2, and the other end is threadedly connected to the bearing support plate 11; one side of the test thrust bearing 12 is connected to the The bearing support plate 11 is connected by threads; the rib plate 26 is connected with the bearing seat 9 by welding.

Embodiment 3

[0070] Embodiment 3: as Figure 1-20 As shown, it is basically the same as Example 1, the difference is: a kind of accelerated fatigue test device for heavy-duty rolling bearings,

[0071] The sensor housing chamber 18 is provided with 4 outlets (distributed symmetrically at 90° to each other), and the unused outlets are sealed by sound-insulating rubber blocks 25 .

[0072] One end of the shaft coupling 2 is threadedly connected to the drive shaft of the motor 1; one end of the transmission shaft 3 is connected to the shaft coupling 2 through a key, and the other end is connected to the bearing support plate 11 through a key; one side of the test thrust bearing 12 is connected to the The bearing support plate 11 is connected by threads; a pair of ribs 26 are symmetrically distributed on both sides of the back of the bearing seat, and are fixed to the back of the bearing seat 9 by welding.

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Abstract

The invention relates to an accelerated fatigue test device for a heavy-load rolling bearing, which belongs to the technical field of mechanical engineering. The present invention includes a driving device, a transmission device, a test and testing device, a loading device, a guide rail device, and an overload protection device; wherein the guide rail device is placed on the ground, and the driving device, the transmission device, the test and testing device, and the loading device are all installed on the guide rail device , the driving device is connected to one end of the transmission device, the other end of the transmission device is connected to one end of the test device, and the other end of the test device is connected to the loading device. Overload protection device connection. The invention has the advantages of low cost, simple structure, easy implementation, simple and convenient maintenance; it can shorten the signal transmission path, reduce signal attenuation and almost eliminate environmental noise interference; it can shorten the fatigue failure period, improve the speed and efficiency of scientific research, and the safety factor of the test bench is obtained. improve.

Description

technical field [0001] The invention relates to an accelerated fatigue test device for a heavy-load rolling bearing, which belongs to the technical field of mechanical engineering. Background technique [0002] Rolling bearings occupy a pivotal position in the machinery industry, and rolling bearings are known as "the joints of industry". According to data records, 30% of rotating machinery failures are caused by bearing failures. Accurate judgment on the contact fatigue failure process of rolling bearings can not only ensure the normal operation of the enterprise or the test, but also avoid sudden failures near the end of life stage and cause shutdown losses due to untimely replacement, which is of great significance to maintain good economic benefits of the enterprise . The invention carries out the fatigue failure research on the thrust bearing, which can be extended to the research on the contact fatigue failure of other types of rolling bearings. [0003] In order to...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/04
Inventor 柳小勤王之海伍星刘畅刘韬陈庆谢金葵
Owner KUNMING UNIV OF SCI & TECH