Vertical cylinder liner piston ring friction-wear test device

Abstract

The invention discloses a vertical cylinder liner piston ring friction-wear test device which comprises a motor and an oil supply pipeline. The device is characterized by comprising a friction test device, a heightened clamping jaw, a piston assembly, a positive pressure test device, a chuck base, an oil groove and a heating device. A to-be-tested cylinder liner is cut into three test pieces to be mounted on clamping jaws of an electric centering three-jaw chuck respectively, the clamping jaws clamp the test pieces for radial loading, the friction and lubrication performance of a cylinder liner piston ring is tested through simulation of the load change of the cylinder liner piston ring, and pairing and model selection of cylinder liner piston ring friction pairs are guided accordingly.

Description

technical field [0001] The invention relates to an engine performance test device, in particular to a vertical cylinder liner piston ring friction and wear test device. Background technique [0002] The cylinder liner-piston ring friction pair is the most critical friction pair in the engine, and its friction and lubrication performance directly affects the performance of the engine, so it is of great significance to conduct experimental research on the cylinder liner-piston ring friction pair and lubrication characteristics. [0003] At present, the test methods for testing the friction and wear performance of cylinder liner and piston ring mainly include sample test method, component simulation test method, engine bench test method and installed machine use test method, etc. The sample test method is to cut the cylinder liner and piston ring into a standard sample shape and size and test it on the testing machine. This method has a simple structure. The test parameters ar...

AI Technical Summary

Problems solved by technology

Its advantage is that it is similar to the actual working conditions, and the conditions are well controllable, but the test preparation is complicated, the cycle is long, and the cost is high

The installation uses the experimental method to try to install the cylinder liner and piston ring for actual work. The advantage is that it can be exactly the same as the actual working condition, but the test cycle and cost are greatly increased.

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