Clamp system for joint bearing life test

Abstract

The invention provides a clamp system for a joint bearing life test. The clamp system comprises a joint bearing clamping subsystem, a base, a rotation applying subsystem, a box penetrating shaft sleeve, a temperature box, a tested joint bearing, a radial load applying subsystem, an axial load applying subsystem, and an acquisition and control system. The clamp can apply an axial load to the testedjoint bearing through the axial load applying subsystem, and apply a radial load to the tested joint bearing through the radial load applying subsystem. The clamp has strong universality, clamping oflife tests of joint bearings of different width series can be achieved by replacing and adjusting bushings, clamping of life tests of joint bearings of different diameters can be achieved by replacing a core shaft, an ejector block and a loading plate, and the test clamp is high in utilization rate and good in universality.

Description

technical field [0001] The present invention relates to the technical field of a fixture, and more specifically, the present invention relates to a fixture for a joint bearing life test and an installation method thereof. Background technique [0002] The life test of spherical plain bearings is used to evaluate the durability life index of spherical plain bearings under certain test profile conditions, and is an important basis and judgment for determining the refurbishment period and service life of spherical plain bearings in the design, development, customization and selection of spherical plain bearing products guidelines. During the life test, the control of the ambient temperature, load, and reciprocating motion state requires real-time control, and the entire test process has a long operating cycle, so a test system with a high degree of automation is required to achieve external environmental conditions, load conditions, and operation. The conditions can be consist...

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Problems solved by technology

[0003] However, the existing system has the following problems: (1) The existing joint life test fixture can only realize the application of radial load to the joint bearing, and cannot completely simulate the actual situation that the joint bearing is subjected to radial force and axial force at the same time. There is a large error between the test results and the real life of the product, and the life of the spherical plain bearing cannot be accurately predicted based on the existing life test fixture; (2) Due to the large load, the product volume of the tested product, etc. It is bulky, and the limited space is not easy to install and fix the tested product and the test fixture. The process of installing and fixing the tested fixture is relatively cumbersome and laborious, and the test preparation time is long; (3) The existing life test fixture has poor design versatility , when completing the life test of different types of spherical plain bearings, fixtures of various specifications are required, resulting in a great waste of funds, time and storage space

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