Novel joint bearing wearing service lifetime testing clamp

Abstract

The invention discloses a novel joint bearing wearing service lifetime testing clamp, and relates to the testing technology field. The novel joint bearing wearing service lifetime testing clamp comprises a mandrel without a keyway, a jig body I, a jig body II, a left supporting bearing, a right supporting bearing, a left lining, a right lining, a left bearing pressing cover, a right bearing pressing cover, a baffle plate, and a nut. The novel joint bearing wearing service lifetime testing clamp is advantageous in that the spindle head and the spindle body of the mandrel are not provided with the keyways, and therefore the intensity and the rigidness can be improved, and the load and the torque can be reduced; the left supporting bearing seat and the right supporting bearing seat are integrated together, and then the assembly and the disassembly are more convenient, the assembly disassembly intensity can be reduced, and the assembly disassembly efficiency can be improved; the inner ring and the outer ring of the left supporting bearing seat and the right supporting bearing seat are provided with axial fixing links, and then the slipping phenomenon of the bearing can be prevented during the high-speed rotation and swinging, and therefore the test fault occurrence probability can be reduced, the stability of the testing jigs and the safety performance of the test can be improved.

Description

technical field [0001] The invention relates to the technical field of testing, in particular to a novel joint bearing swing wear life test jig. Background technique [0002] Joint bearings, also known as spherical sliding bearings, have the characteristics of large load capacity and strong impact resistance, and are widely used in aerospace, construction machinery, trucks, water conservancy facilities, etc. The main failure mode of spherical plain bearings is wear, which increases the clearance between the inner and outer rings of the bearing, causes vibration of the bearing support part, and can lead to failure of related components when the wear is severe. Therefore, it is of great significance to carry out the swing friction and wear life test for spherical plain bearings. [0003] The Chinese patent No. 201420300293.0 discloses a jig for swing wear life test of joint bearings, which includes a mandrel without keyway, left top sleeve, right top sleeve, left support bear...

AI Technical Summary

Problems solved by technology

The fixture system has the advantages of simple structure, easy processing, low test cost, and avoiding the impact of keys, etc., but it is inconvenient to install and disassemble, and it is easy to slip off the supporting bearing when rotating and swinging at high speed, which has a certain degree of danger.

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