Multifunctional piston-cylinder sleeve system friction-wear experiment testing machine

Abstract

The invention discloses a multifunctional piston-cylinder sleeve system friction-wear experiment testing machine and belongs to the field of mechanical friction-wear test. In order to solve the problems that the conventional friction test machine cannot truly reflect the friction-wear state of the piston-cylinder sleeve system during actual work, and has low friction force measuring precision, themultifunctional piston-cylinder sleeve system friction-wear experiment testing machine performs high-precision simulation on pressure, temperature, vibration and the like of the actual working conditions of an engine by taking a speed-regulating motor as driving and adopting the following simple open type structure: a special suspended type cylinder sleeve, a linear bearing type piston skirt part, a cylinder pressure simulating mechanism, a piston ring radial force elastic adjustment mechanism and the like, under the condition of non-real-machine ignition and combustion, performs piston-cylinder sleeve system friction-wear test, performs high-precision measurement on the friction force, and avoids the influence on the experimental test by high temperature and vibration of a real engine. In addition, the test machine can perform the related friction-wear experiment of a plunger piston type air compressor.

Description

technical field [0001] The invention relates to a multifunctional piston-cylinder liner system friction and wear testing machine, which belongs to the field of material friction and wear testing. Background technique [0002] The piston-cylinder liner system is widely used in internal combustion engines, air compressors and other equipment. Especially for the engine, the friction and wear of the piston-cylinder liner system occupies a large proportion in the overall mechanical loss, accounting for about 50% of the total mechanical friction loss of the engine, and the friction and wear failure of the piston-cylinder liner system is the The main cause of institutional damage. The application of low-friction technology for the piston-cylinder liner system has extremely important practical significance for reducing friction loss, reducing emissions, improving fuel economy of internal combustion engines, and increasing the working life of internal combustion engines. [0003] M...

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem that the existing conventional friction and wear testing machine cannot completely and reliably reflect and test the friction and wear condition of the piston-cylinder liner system, the present invention provides a multifunctional piston-cylinder liner system friction and wear test machine, which overcomes the common Rod mechanism, the test accuracy of the power test method is low, which overcomes the limitation of the measurement when the engine is ignited and burned, and accurately simulates the piston ring of the engine to the cylinder liner and piston without the ignition of the real machine through a simple simulation mechanism. The friction and wear of the skirt on the cylinder liner, and the friction between these friction pairs can be measured at the same time (can be carried out simultaneously or separately), and due to the reasonable and direct sensor arrangement, the system has the function of accurate data measurement and collection

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