Abrasion test method of air valve and seat ring novel abrasion test system of valve and seat ring

A wear test, valve seat ring technology, applied in the field of power machinery, can solve the problems of inconvenient data sorting and regular exploration, unfavorable progress and cycle control, accuracy and precision effects, etc., to shorten the test time and improve the reliability. , the effect of improving the accuracy

CN101398359AInactive Publication Date: 2009-04-01ZHEJIANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
Publication Date
2009-04-01
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a quick abrasion testing system in the field of power machinery technique, aiming at providing a novel abrasion testing system used for a valve and a seat ring used for an internal combustion machine; the system comprises a cylinder cover, a valve, a valve spring and a valve seat ring; the valve is positioned on the cylinder cover; the valve seat ring is positioned between the valve and the cylinder cover; the valve rod of the valve passes through the cylinder cover; the end of the valve rod fixes the spring seat ring by a valve lock lamp; one end of the valve spring is supported on the cylinder cover and the other end thereof pushes against the spring seat ring; the system also comprises an electromagnet which is arranged on the cylinder cover and positioned at the lower part of the spring seat ring; the quick abrasion testing system can achieve extremely high impact frequency, and shorten the testing time; the dripping speed of the valve can be jointly determined by two different sensors and the accuracy of the test is improved; and the temperature of the cylinder cover is kept at the temperature of the cylinder cover when the internal combustion machine works normally, thus ensuring the reliability of the testing conclusion. The parts are few, the structure is simple and the manufacture cost is low.
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Description

technical field

[0001] The invention relates to a rapid wear test system in the technical field of power machinery, more specifically, the invention relates to a novel wear test system for valves and seat rings used in internal combustion engines. Background technique

[0002] The valve and the seat ring are one of the important friction pairs of the engine. They work under the condition of high temperature and impact, and at the same time, there is exhaust gas corrosion. The working conditions are harsh, and they are prone to wear and failure. The operating life and reliability of valves and seat rings determine the working performance, service life and output power of the engine to some extent. Especially in recent years, as the power and reliability requirements of engines, especially diesel engines, have increased, the requirements for the friction pair of valves and seat rings have also increased accordingly. In recent years, with the deepening of research on the wear ...

Examples

Embodiment Construction

[0021] The present invention will be described in further detail below in conjunction with the accompanying drawings, but not as a limitation of the present invention.

[0022] Such as figure 1 , 2 As shown, the new valve and seat ring wear test system diagram is divided into test state and calibration state state diagram. It includes: cylinder head 1, valve 2, valve spring 3, electromagnet 4, spring seat 5, valve lock clip 6, valve acceleration sensor 7, spring seat displacement sensor 8, valve seat 9, electromagnet cooling fan 10 , the cylinder head temperature sensor 11, the burner 12, the valve 2 is located on the cylinder head 1, the cylinder head temperature sensor 11 is installed on the cylinder head 1, one end of the valve spring 3 is supported on the cylinder head 1, and the other end is pressed against the spring seat ring 5 Above, the spring retainer 5 is fixed on the valve 2 with the valve lock clip 6, the electromagnet 4 is installed on the cylinder head 1, and ...