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Air valve and air valve seat ring abrasion tester

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: 2014-11-26
CHINA NORTH ENGINE INST TIANJIN
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  • 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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  • Air valve and air valve seat ring abrasion tester

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Embodiment Construction

[0007] Such as figure 1 As shown, a valve and valve seat wear testing machine 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 to the high temperature and high pressure airflow generating mechanism. The driving mechanism is connected to the test platform, the control mechanism is connected to the driving mechanism and the high temperature and high pressure air flow generating mechanism, and the monitoring mechanism is connected to the test platform, the driving mechanism and the high temperature and high pressure air flow generating mechanism. The test platform consists of valve 1, valve seat 2, valve seat mounting plate 3, spring 4, and test chamber 7. The V-shaped cone of valve 1 is inserted in the center hole of valve seat 2, and valve seat 2 Connected with the valve seat ring mounting plate 3 about the center hole coaxially, the lo...

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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 a valve and valve seat test equipment, and specifically relates to a valve and valve seat ring wear tester. Background technique [0002] When the traditional valve and valve seat wear testing machine carries out the wear test, the high temperature and high pressure pulse airflow environment cannot be established. The test has the following shortcomings: the test is only the wear of the valve-valve seat ring at room temperature, not the actual wear at high temperature; in addition, the test is the impact of impact load on wear, without the impact of dynamic wear on the friction pair. Summary of the invention [0003] The present invention is to solve the problem that the amount of wear cannot be accurately controlled during the wear test of the valve and the valve seat ring, and the fretting wear of the friction pair between the valve and the valve seat ring cannot be controlled, and provides a valve and valve seat ring Wear testing...

Claims

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Application Information

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Patent Type & Authority Applications(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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