High-speed multi-station piston ring-cylinder liner sliding pair friction test machine

Abstract

The invention relates to friction test machines, in particular to a high-speed multi-station piston ring-cylinder liner sliding pair friction test machine. The problems that the test process of a traditional friction test machine is slow, the mutual-affected frictional wear state among piston cavities cannot be tested, and the traditional friction test machine is not suitable for high-speed occasions are solved. The high-speed multi-station piston ring-cylinder liner sliding pair friction test machine includes a first box-shaped machine frame, a second box-shaped machine frame, a third box-shaped machine frame, a crank connecting rod mechanism, a variable frequency motor, N loading screws, N pressure sensors, N compression springs, N wireless passive strain sensors and N wireless passive inclination sensors, wherein N is a positive integer, and N is more than or equal to 2; an output shaft of the variable frequency motor is connected to the free end of a crank of the crank connecting rod mechanism; the N loading screws penetrate through N screw holes one to one; and the N pressure sensors are fixed to the lower ends of the N loading screws one to one. The high-speed multi-station piston ring-cylinder liner sliding pair friction test machine is suitable for a friction test of a piston ring-cylinder liner sliding pair.

Description

technical field [0001] The invention relates to a friction testing machine, in particular to a high-speed multi-station piston ring-cylinder liner sliding pair friction testing machine. Background technique [0002] The piston ring-cylinder liner sliding pair is an important part of the crank-link mechanism of an internal combustion engine. In order to improve the performance of the piston ring-cylinder liner sliding pair, a friction tester is usually used to conduct friction tests on the piston ring-cylinder liner sliding pair. The traditional friction testing machine is mainly divided into two types according to the structural form: 1. The first type of friction testing machine directly fixes the force sensor on the cylinder liner, so the measurement results of the force sensor cannot be decoupled. The friction test can only be carried out on a single piston ring-cylinder liner sliding pair, which not only leads to a slow test process, but also cannot test the friction an...

AI Technical Summary

Problems solved by technology

[0003] The present invention provides a high-speed multi-station piston ring-cylinder in order to solve the problems that the traditional friction testing machine is slow in the test process, unable to test the friction and wear state of mutual influence between the various piston chambers, and not suitable for high-speed occasions. Set of sliding pair friction testing machine

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