Piston pin, bushing test piece structure and engine swing wear simulation test tool

Abstract

The invention provides a piston pin, a bushing test piece structure and an engine swing abrasion simulation test tool. The engine swing abrasion simulation test tool comprise a first bearing seat, a second bearing seat, a driving motor, a swing type transmission mechanism, a hydraulic cylinder, a driving tip cone shaft, a follow-up tip cone shaft, an adjusting screw and a bushing test piece structure. A bearing of the first bearing pedestal, a bearing of the second bearing pedestal and a circular hole in the bushing test piece structure are coaxially arranged, the bushing test piece structureis arranged between the first bearing pedestal and the second bearing pedestal, the driving motor is connected with the driving tip cone shaft through the swing type transmission mechanism, and the driving tip cone shaft penetrates through the bearing of the second bearing pedestal. According to the piston pin, the bushing test piece structure and the engine swing abrasion simulation test tool, the technical problem that an existing test tool is complex in disassembly and assembly process is solved.

Description

technical field [0001] The invention belongs to the field of engine friction tests, and in particular relates to a structure of a piston pin and a bushing test piece and tooling for an engine swing wear simulation test. Background technique [0002] The friction and wear simulation test of the engine swing friction pair is used to evaluate the tribological performance of the friction pair composed of the engine piston pin and the small end bushing of the connecting rod. The connecting shaft simulates the swinging motion of the small end of the connecting rod through the reciprocating eccentric mechanism or the crank rocker mechanism, and loads the friction pair composed of the piston pin and the connecting rod test part through the hydraulic cylinder. At present, the support method of the test tooling adopts rolling bearings to support both sides of the swing friction pair. The piston pin is installed in cooperation with the two ends of the support shaft through the two ends...

AI Technical Summary

Problems solved by technology

[0003] In view of this, the present invention aims to propose a piston pin, bushing test piece structure and engine swing wear simulation test tooling, which solves the technical problem of low utilization rate existing in the existing bushing test piece structure;

[0004] Further solved the technical problem of the cumbersome disassembly and assembly process of the existing test tooling

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