A vertical cylinder liner piston ring friction and wear test device

Abstract

A vertical cylinder sleeve piston ring friction-wear test device comprises a motor (1) and an oil supply pipe (2), and further comprises a friction force test device (3), a raised holding jaw (5), a piston assembly (6), a positive pressure test device (7), a chuck base (8), an oil storage tank (9) and a heating device (10). A cylinder sleeve to be tested is cut into three test pieces (4) respectively mounted on the holding jaws (5) of a centered electrically powered three-jaw chuck, the raised holding jaws (5) clamping to apply a radial load. A load change between cylinder sleeve piston rings is simulated to test friction and lubricity performance thereof, so as to guide the pairing and selection of a cylinder sleeve piston ring friction pair model.

Description

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

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.

Images