Device for testing material property of hemiconical block of air valve

A material performance and inspection device technology, which is applied in the direction of applying stable tension/pressure to test the strength of materials, can solve the problems of inconvenient, inaccurate and inaccurate measurement of E2 value, and can not truly and effectively reflect the actual quality of the half-cone block. The effect of improving labor productivity, accurate detection value and simple structure

Active Publication Date: 2012-04-11
HUDONG HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

After loading, the pressure tool will press the head of the valve stem, and the measurement of the E2 value is inconvenient and inaccurate, and cannot truly and effectively reflect the actual quality of the half-cone block

Method used

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  • Device for testing material property of hemiconical block of air valve
  • Device for testing material property of hemiconical block of air valve
  • Device for testing material property of hemiconical block of air valve

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.

[0025] see figure 2 and image 3 , figure 2 It is a top view of the testing device for the performance of the valve half-cone block material of the present invention, image 3 yes figure 2 Middle A-A sectional view. It can be seen from the figure that a test device for the material performance of the valve half-cone block consists of a tensioner, a valve stem 2 and a cone block seat 3:

[0026] The stretcher includes a cylindrical hydraulic cylinder, the inner cavity of the hydraulic cylinder is provided with a piston 6, and the center of the piston 6 is provided with a piston hole. The hydraulic cylinder is composed of a hydraulic cylinder top 10 and a hydraulic cylinder bottom 13. Quick connectors 12 are respectively provided on the upper part 10 of the hydraulic ...

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PUM

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Abstract

The invention discloses a device for testing material property of a hemiconical block of an air valve. In structure, the device comprises a stretcher, a valve rod and a conical block seat, wherein the stretcher comprises a cylindrical hydraulic cylinder, which consists of an upper part of the hydraulic cylinder and a lower part of the hydraulic cylinder; the upper part of the hydraulic cylinder and the lower part of the hydraulic cylinder are respectively provided with a quick joint; the conical block seat is in a convex shape, and an obconical through hole is formed at the centre of the conical block seat; the conical block seat is connected with the top of the hydraulic cylinder; and a hemiconical block is mounted at the upper part of the valve rod, and the lower part of the valve rod is connected with a piston in the hydraulic cylinder. Hydraulic oil is injected through the upper and lower quick joints, so as to control the stretcher to ascend or descend, and further control the valve rod to ascend or descend.

Description

technical field [0001] The invention relates to the field of mechanical manufacturing, in particular to a testing device for the performance of the material performance of the half-cone block of an air valve. Background technique [0002] The intake and exhaust valves are opened by pressing down on the rocker arm, and closed by the restoring force of the spring. The valve stem and the spring are connected through a half cone block and a spring seat. The intake and exhaust valves open downward, and a pressure is transmitted to the spring through the half-cone block. When the spring rebounds, an upward force is transmitted to the valve stem through the half-cone block to complete the valve closing action. If the quality of the half-cone block is unqualified, it will cause excessive friction between the half-cone block and the valve stem, and scrape the valve stem to generate metal debris. In severe cases, the half cone sticks to the valve stem, causing the valve to fail to m...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/10
Inventor 黄尚朱跃斌陆建军
Owner HUDONG HEAVY MACHINERY
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