Automatic loading device of stress ring

An automatic loading and stress ring technology, which is applied in the direction of testing wear resistance, etc., can solve the problems of inability to real-time stress ring loading pressure, real-time limitation, limited accuracy, etc. Effect

Inactive Publication Date: 2010-08-04
SHANGHAI JIAO TONG UNIV
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Problems solved by technology

Since the actual pressure on the stress ring is indirectly measured by detecting the displacement, there are errors in the middle, so the existing technology has the characteristics of limited precision and limited real-time performance, and the actual loading pressure of the stress ring cannot be read online in real time, and it needs Tensile testing machine, higher cost

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  • Automatic loading device of stress ring
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Embodiment Construction

[0013] The embodiments of the present invention are described in detail below. This embodiment is implemented on the premise of the technical solution of the present invention, and detailed implementation methods and specific operating procedures are provided, but the protection scope of the present invention is not limited to the following implementation example.

[0014] Such as figure 1 a and figure 1 As shown in b, this embodiment includes: a frame 1, a transmission pressurization mechanism 2 and a stress ring positioning plate 3, wherein: the stress ring positioning plate 3 is horizontally arranged at the bottom of the frame 1, and the transmission pressurization mechanism 2 is located in the frame 1 And it is vertically arranged above the stress ring positioning plate 3 .

[0015] The transmission and pressurization mechanism 2 includes: a stepper motor 4, a synchronous belt transmission mechanism 5, a vertical drive mechanism 6 and a connecting pressurization mechanis...

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Abstract

The invention relates to an automatic loading device of a stress ring for a hydrogen sulfide resistant stress corrosion test, belonging to the technical field of mechanical tests. The automatic loading device comprises a stand, a transmission pressurization mechanism and a stress ring positioning board, wherein the stress ring positioning board is horizontally arranged at the bottom of the stand, and the transmission pressurization mechanism is positioned in the stand and is vertically arranged above the stress ring positioning board. The transmission pressurization mechanism comprises a stepping motor, a synchronous belt transmission mechanism, a vertical driving mechanism and a connection pressurization mechanism, wherein the stepping motor is fixedly arranged at the upper part of the stand and is connected with one end of the synchronous belt transmission mechanism; the other end of the synchronous belt transmission mechanism is connected with the vertical driving mechanism; the vertical driving mechanism is rotatablely arranged at the upper part of the stand vertically; and the connection pressurization mechanism is fixedly arranged at the lower end of the vertical driving mechanism and is in contact with the stress ring to be measured. The invention realizes the purpose of loading the load of which the loading force is 0.1-40KN through a compact structure.

Description

technical field [0001] The invention relates to a device in the technical field of mechanical testing, in particular to a stress ring automatic loading device for hydrogen sulfide stress corrosion resistance testing. Background technique [0002] Hydrogen sulfide has a great corrosion and destructive effect on engineering materials such as steel, especially under stress conditions. In order to improve the hydrogen sulfide stress corrosion resistance of the material, it is necessary to carry out the hydrogen sulfide stress corrosion resistance test in order to study the factors affecting the test results in the preparation process of the specimen, such as dimensional accuracy and surface roughness. The hydrogen sulfide stress corrosion resistance test adopts the method in the American standard NACE0177-2005 (i.e. acid solution immersion method). The first problem that needs to be solved when using this method is how to carry out pressure loading on the stress ring, and use th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N3/56
Inventor 王海丽谢剑峰桂明祥裴景玉胡德金
Owner SHANGHAI JIAO TONG UNIV
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