Bushing friction and wear test device

Abstract

The invention belongs to the technical field of workpiece wear test devices. The invention particularly relates to a bushing friction and wear test device which comprises a crankshaft and crankshaft mounting seats supported at two ends of the crankshaft, a plurality of eccentric parts are arranged on the crankshaft; the crankshaft is formed by detachably connecting a plurality of eccentric parts into a whole; each eccentric part of the crankshaft is sequentially and uniformly deflected and distributed in the circumferential direction; the number of eccentric parts of the crankshaft is not lessthan three; the two end parts of the crankshaft are coaxial; the end part of the crankshaft is mounted in the mounting hole of the crankshaft mounting seat; each eccentric part of the crankshaft is provided with a test oil cylinder, the test oil cylinders are arranged on the two sides of the crankshaft in a crossed mode, a force application oil cylinder is installed on the concentric part, between every two adjacent test oil cylinders, of the crankshaft, the force application oil cylinders are arranged on the two sides of the crankshaft in a crossed mode, and the test oil cylinders and the force application oil cylinders are hinged and fixed through corresponding oil cylinder mounting bases. The test device can be used for carrying out a wear test on a plurality of bushings at one time, so that the working efficiency is greatly improved.

Description

technical field [0001] The invention belongs to the technical field of workpiece wear test devices, and in particular relates to a bush friction and wear test device. Background technique [0002] In the prior art, the slider-crank mechanism is used to install the bushing at the hinge point between the cylinder and the crank, and the piston rod moves to drive the crank to swing to realize the wear test of the bushing. The bushing is installed at the hinge point of the crank and the fixed oil cylinder, and the fixed oil cylinder pulls the connecting shaft between the crank and the fixed oil cylinder to cause deformation to realize the friction and wear test of the bushing. The existing technology can only do one bushing wear test at a time. During the movement, the movable cylinder is the active part, and the movement of the piston rod of the movable cylinder drives the crank to swing back and forth. According to the movement principle of the slider crank mechanism, when the...

AI Technical Summary

Problems solved by technology

According to the movement principle of the slider crank mechanism, when the slider is the active part, it is easy to get stuck, so when the device moves to the dead point, it is easy to get stuck, and the existing technology still cannot simulate the actual working conditions, and the friction of the bushing is not good. Uniformity, the problem of long test period

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