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A valve and valve seat wear testing machine

A valve seat ring and wear test technology, which is applied in the direction of testing wear resistance and testing material strength by applying repetitive force/pulsation force, which can solve the problem that the fretting wear of valve and valve seat ring cannot be controlled, and the amount of wear cannot be accurately controlled, etc. question

Active Publication Date: 2019-02-12
CHINA NORTH ENGINE INST TIANJIN
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the problem that the amount of wear cannot be accurately controlled and the fretting wear of the friction pair between the valve and the valve seat cannot be controlled during the wear test of the valve and the valve seat, and provides a valve and the valve seat Abrasion testing machine

Method used

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  • A valve and valve seat wear testing machine

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Embodiment Construction

[0007] Such as figure 1 As shown, a valve and valve seat ring wear tester, it includes a test platform, a driving mechanism, a high temperature and high pressure airflow generating mechanism, a control mechanism and a monitoring mechanism, the test platform is connected with the high temperature and high pressure airflow generating mechanism, the The driving mechanism is connected to the test platform, the control mechanism is respectively connected to the driving mechanism and the high-temperature and high-pressure airflow generating mechanism, the monitoring mechanism is respectively connected to the test platform, the driving mechanism and the high-temperature and high-pressure airflow generating mechanism, and the The test platform consists of a valve 1, a valve seat ring 2, a valve seat ring mounting plate 3, a spring 4 and a test chamber 7, wherein the V-shaped conical surface of the valve 1 is inserted into the center hole of the valve seat ring 2, and the valve seat rin...

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Abstract

The invention relates to an air valve and an air valve seat ring abrasion tester. A test platform comprises an air valve (1), an air valve seat ring (2), an air valve seat ring mounting plate (3), a spring (4) and a test chamber, wherein a driving mechanism comprises a servo motor (6) and a cam shaft (5); a high-temperature and high-pressure airflow generation mechanism comprises an air heating device (8), a high-pressure pulse airflow generator (9) and a pipeline (10); a control mechanism comprises a motor rotation speed adjusting device (11), a temperature control device (12) and an air pressure control device (13); a monitoring mechanism comprises a temperature displayer (14), a rotation speed displayer (15), an air pressure displayer (16) and a cycle number displayer (17). The air valve seat ring abrasion tester is capable of more actually reflecting the abrasion of an air valve-air valve seat ring friction pair under the specific condition.

Description

technical field [0001] The invention belongs to testing equipment for valves and valve seats, in particular to a wear testing machine for valves and valve seats. Background technique [0002] When the traditional valve and valve seat wear testing machine carries out the wear test, it cannot establish a high temperature and high pressure pulse air flow environment. The test has the following deficiencies: the test is only the valve-valve seat wear at normal temperature, not the real wear at high temperature; in addition, the test is the impact of impact load on wear, and does not include the impact of dynamic wear on friction pairs. Contents of the invention [0003] The present invention aims to solve the problem that the amount of wear cannot be accurately controlled and the fretting wear of the friction pair between the valve and the valve seat cannot be controlled during the wear test of the valve and the valve seat, and provides a valve and the valve seat Abrasion tes...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N3/56G01N3/36
Inventor 郭昌明强智臻熊毕伟张丽
Owner CHINA NORTH ENGINE INST TIANJIN
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