Mounting structure for frictional wear test for valve mechanism of engine

Abstract

The invention discloses a mounting structure for frictional wear test for a valve mechanism of an engine. The mounting structure mainly comprises parts including a valve (1), a seat ring (2), a guide tube (3), a spring (4), a lock clamp (5), an inner spring seat (6), an outer spring seat (7), an upper mounting disc (8), a lower mounting disc (9), a support box (10) and the like. The valve (1) and the seat ring (2) are main assessment test samples for the test, the lock clamp (5) is the part for matching the valve (1) with the seat ring (2), the upper mounting disc (8), the lower mounting disc (9) and the outer spring seat (7) are reusable main parts of the mounting structure, and the guide tube (3) and the inner spring seat (6) are transitional connectors for fittingly mounting the gas valve and the seat ring with the main parts. The mounting structure is a combined type structure and is easy to process; coaxiality of the guide tube and a seat ring hole is high; and the mounting structure is convenient and speedy to assemble and disassemble and high in universality, and can be used for valve-seat ring tests in multiple schemes.

Description

technical field [0001] The invention belongs to the technical field of engines, and in particular relates to an installation body structure used for friction and wear tests of engine valve trains. Background technique [0002] The valve-seat structure is one of the important friction pairs of the engine. The service life and reliability of the valve and seat determine the engine's working performance, service life and output power to some extent. In recent years, as the power and reliability requirements of engines, especially diesel engines, have increased, the requirements for valve-seat friction pairs have also increased accordingly. Therefore, it is very necessary to build a test bench that can quickly, efficiently and reliably evaluate valve-seat friction and wear. [0003] Usually, the valves and seat rings of each scheme need to be equipped with a set of corresponding mounting bodies to match them, which takes a long cycle and high cost. Therefore, it is very import...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that a set of corresponding mounting bodies need to be configured to match the valves and seat rings of each scheme, the cycle is long and the cost is high, and thus a new structure of mounting bodies is proposed to realize matching Coaxial installation of multi-scheme valve-seat ring in friction and wear test of pneumatic mechanism

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