A wear-resistant ring piston

Abstract

The invention discloses a wear-resistant ring-inlaid piston, which mainly consists of a piston body, a pin shaft hole, one ring groove, two ring grooves, three ring grooves, a wear-resistant ring ring body and the like. The overall structure of the piston body is the same as that of the traditional piston. The upper end is the head, the lower end is the skirt, and the middle end is the piston pin seat. There is a pin hole for connecting the piston and the connecting rod. In the present invention, a ring groove is wear-resistant inlaid. Compared with the prior art, the present invention has certain changes in the selection of the material of the wear-resistant insert body, the determination of the insert process, and the shape design of the insert body. The high-nickel austenitic cast iron is selected as the insert body The material adopts the aluminizing process in the temperature range of 650°C-700°C, and adopts a trapezoidal design for the cross-section of the wear-resistant insert body, which ensures the working fastness of the piston and the entire insert ring structure. works well.

Description

(1) Technical field [0001] The invention belongs to the technical field of fuel engines, and in particular relates to a wear-resistant ring piston with a novel structure. (2) Background technology [0002] The piston is the "heart" of the fuel engine, and it is also one of the key components with the worst working conditions in the engine. The main function of the piston in the fuel engine is to bear the gas pressure. It works under the conditions of high temperature, high pressure, high speed and poor lubrication, and the heat dissipation condition is very poor. Large, the diesel engine is as high as 6-9MPa, and it must also bear the effect of side pressure; the piston reciprocates at a speed of (8-12m / s) in the cylinder, and it must bear a large additional load under the action of inertial force. The above-mentioned harsh working conditions of the piston are prone to deformation of the piston body and wear and aging of multiple sealing rings and oil seals, especially the ...

AI Technical Summary

Problems solved by technology

The above-mentioned harsh working conditions of the piston are prone to deformation of the piston body and wear and aging of multiple sealing rings and oil seals, especially the first sealing ring, which is the most prone to wear and aging. Main Factors of Diesel Engine Operating Conditions and Piston Service Life

In recent years, the research on the piston body and the sealing ring has achieved more results. The research and development of the piston wear-resistant insert ring technology has been vigorously promoted by auto parts manufacturers for many years to effectively improve the working efficiency of the piston, prolong the service life and It is a new topic to improve the working effect of the engine, but the wear-resistant ring of the piston is a production process with complex processing technology and high technical content. The selection of ring material and research on the technology of the ring have always been difficult problems that have plagued the improvement of this technology. one

Images