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Electromagnetic quick release structure of material friction abnormal sound test bed

A test bench and electromagnetic technology, applied in the direction of analyzing materials, measuring devices, instruments, etc., can solve problems such as inconvenient operation, narrow space at the connection, and long connection time

Pending Publication Date: 2021-04-27
CHINA AUTOMOTIVE ENG RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the connection between the connecting seat and the pressure rod is bolted or flanged, but the connection takes a long time, and the space at the connection is narrow, and it is very inconvenient to operate when tightening the bolts

Method used

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  • Electromagnetic quick release structure of material friction abnormal sound test bed
  • Electromagnetic quick release structure of material friction abnormal sound test bed

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] This embodiment is basically as figure 1 Shown: The electromagnetic type quick release structure of the material friction abnormal sound test bench, including the connecting seat 1 and the docking seat, the connecting ear 101 is fixedly connected on the side of the connecting seat 1, the connecting ear 101 has a through hole, and the middle part of the connecting seat 1 has a A circular hole 2 with a diameter of 25 mm and a depth of 30 mm. The diameter of the circular hole 2 is smaller than the diameter of the docking seat. A column 5 with a rectangular cross-section and a height of 50 mm is installed at the center of the top surface of the docking seat. Four blocks are fixed on the column 5. Electromagnet 8, four electromagnets 8 are respectively fixed on the four sides of column 5, there are four spring sheets 6 with a thickness of 2mm evenly distributed around column 5, spring sheet 6 is parallel to column 5, and electromagnet 8 faces spring sheet 6. The spring piece...

Embodiment 2

[0026] The difference between this embodiment and Embodiment 1 is that: figure 2 As shown, hoop 10 is also included, hoop 10 is a ring, the inner diameter of hoop 10 is 22mm, the thickness of hoop 10 is 1mm, column 5 is a cylinder, and the end of the cylinder near the docking seat is provided with external threads, and the docking seat Be provided with the threaded hole 9 that cooperates with column 5, depth is 30mm, column 5 is threadedly connected with threaded hole 9, and magnetic block 7 is a permanent magnet.

[0027] Put the hoop 10 on the outside of all the spring pieces 6, periodically change the polarity of the electromagnet 8, the magnetic block 7 and the column 5 constitute the rotor structure of the motor, when the rotor rotates, the column 5 is under the action of the external thread It can be lifted and lowered in the threaded hole 9 to control whether the column 5 needs to be higher than the top of the spring leaf 6 .

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Abstract

The invention relates to the technical field of friction abnormal sound test equipment and particularly relates to a material friction abnormal sound test bed electromagnetic quick release structure. The structure comprises a connecting base and a butt joint base, wherein a round hole is formed in the middle of the connecting base, the diameter of the round hole is smaller than that of the butt joint base, and a stand column is installed in the center of the top face of the butt joint base; after the electromagnets are powered on, magnetic poles are located on the side faces of the stand columns, at least two spring pieces are evenly distributed on the peripheries of the stand columns, the spring pieces are parallel to the stand columns, the spring pieces are statically connected to the butt joint bases, and magnetic attraction blocks corresponding to the electromagnets are fixedly connected to the spring pieces; and the diameter of the excircle of the outer side edge of the oppositely-arranged magnetic attraction block is greater than that of the round hole. When a material friction abnormal sound test is carried out, the abnormal sound friction experiment table connecting seat and the pressing rod can be quickly and conveniently connected.

Description

technical field [0001] The invention relates to the technical field of friction noise test equipment, in particular to an electromagnetic quick release structure of a material friction noise test bench. Background technique [0002] Car abnormal noise is the sound produced by two materials colliding or rubbing against each other. This sound is almost the most disturbing and unbearable problem for all consumers. The abnormal noise of the vehicle can hardly be completely avoided, among which the abnormal noise caused by friction is a common and difficult to solve abnormal noise problem in automobiles. The friction coefficient between the samples can be tested through the abnormal noise friction test bench, so as to predict the location of the abnormal noise of the vehicle in advance , Eliminate or reduce this sound from the source. During the test, a certain pressure is exerted on the two materials in the vertical direction by the vertical loading mechanism, and the two test ...

Claims

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Application Information

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IPC IPC(8): G01N19/02
CPCG01N19/02
Inventor 谭成友李沛然佘扬佳绕刚
Owner CHINA AUTOMOTIVE ENG RES INST