Mounting structure for frictional wear test for valve mechanism of engine

A technology of friction and wear test and gas distribution mechanism, which is applied in the direction of engine testing, machine/structural component testing, mechanical component testing, etc. It can solve the problems of high cost and long cycle, and achieve simple structure, strong versatility, The coaxiality is easy to guarantee the effect

Active Publication Date: 2014-09-24
NO 70 INST OF CHINA NORTH IND GRP
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  • Abstract
  • Description
  • Claims
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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

Method used

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  • Mounting structure for frictional wear test for valve mechanism of engine

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Embodiment Construction

[0026] An installation body structure used for friction and wear tests of engine valve mechanism, mainly including valve, seat ring, guide tube, spring, lock clip, spring inner seat, spring outer seat, installation upper plate, installation lower plate, support box, etc. Parts, of which the valve and seat ring are the main test samples for the test; the lock clip is the part provided to match the valve and seat ring; the upper plate, the lower plate and the spring outer seat are the main parts of the reusable installation body; the conduit, The spring inner seat is a transition piece used to match the installation of the valve-seat ring and the main body parts;

[0027] There is a cylindrical boss on the upper part of the lower plate, and two inner and outer cylindrical bosses on the lower part. The upper boss of the lower plate is positioned and connected with the upper plate with a small fit gap. Positioning connection with small fit clearance; the seat ring processed by the...

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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...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M13/00G01M15/00
Inventor 陈闯王小慧彭海雄王根全田彩霞韩文刚卫军朝
Owner NO 70 INST OF CHINA NORTH IND GRP
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