Steel sheet film strain test force-applying apparatus

A film stress and force application device technology, which is used in measuring devices, using stable tension/pressure to test material strength, force/torque/work measuring instruments, etc. problem, to achieve the effect of simple operation and low requirements

Inactive Publication Date: 2017-07-04
CHINA UNIV OF PETROLEUM (EAST CHINA)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the existing biaxial tensile testing machines in China are relatively old and have not been popularized and prac

Method used

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  • Steel sheet film strain test force-applying apparatus
  • Steel sheet film strain test force-applying apparatus
  • Steel sheet film strain test force-applying apparatus

Examples

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[0021] The present invention will be further described below in conjunction with the drawings.

[0022] Such as Figure 1a , 1b , As shown in 1c, the steel sheet film stress test force device includes: a steel frame 1, a sliding dovetail clamp 3, a dovetail groove guide 4, a guide plate 5, a frame reinforced side plate 6, a force transmission stud 7, a top plate 8 And hydraulic jack 9; the structure of each side of the steel film stress test force device is the same, and the structure of each side is axisymmetric, that is, the structure is both central and axisymmetric; the steel tensile test piece 2 consists of two upper and lower sliding dovetail clamps 3 Clamping, sliding dovetail fixture 3 can slide up and down along the dovetail groove guide 4 and the level can be adjusted. It is driven by a hydraulic jack 9 and the top plate 8 moves outward, and the top plate 8 drives the dovetail groove guide 4 outward through the force transmission stud 7 Move, so as to realize the stretch...

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Abstract

The invention relates to a steel sheet film strain test force-applying apparatus which includes a donate-shaped steel frame, a steel sheet stretching test piece, sliding swallow tail holders, swallow tail groove guide rails, guiding plates, frame reinforcing side plates, force-transmitting bolts, top bearing plates and hydraulic jacks. The steel sheet film strain test force-applying apparatus has same structure at each side thereof, and the sides are axially symmetrical in such a manner that in terms of structure, the sides are centrally symmetrical and axially symmetrical. Each side is configured such that the steel sheet stretching test piece is clamped by an upper sliding swallow tail holder and a lower sliding swallow tail holder; the sliding swallow tail holders can slide up and down along the swallow tail groove guide rail, can be adjusted at horizontal level; the top bearing plate is driven by the hydraulic jack to move outwardly; the top bearing plate drives the swallow tail groove guide rail to move outwardly through the force-transmitting bolts so as to realize the stretching of the steel sheet stretching test piece; and the force-transmitting bolts are supported and positioned by the frame reinforcing side plate and the guide plate. According to the invention, the apparatus can simulate axial and ring-direction strain born in the operation of a petroleum pipeline, is easy to operate, safe and reliable.

Description

technical field [0001] The invention belongs to the field of oil pipeline detection, and in particular relates to a steel plate thin film stress testing device for simulating axial and circumferential stresses suffered by oil pipelines during operation. [0002] technical background [0003] In recent years, with the rapid development of the oil and gas storage and transportation industry, technological innovations in oil pipeline inspection and maintenance are also changing with each passing day. However, behind the rapid development of high-tech, there are also a series of problems that people have to pay attention to, which have caused various engineering accidents. With geological movement and chemical changes, many oil and gas pipelines have gradually entered the middle and late stages of operation, and the deformation, dislocation and corrosion of oil pipelines all over the country are also increasing year by year. In order to meet the needs of simulating pipeline stre...

Claims

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Application Information

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IPC IPC(8): G01L5/00G01N3/12
CPCG01L5/0047G01N3/12G01N2203/0048
Inventor 李玉坤于文广赵瑞华国旭慧张伯楠
Owner CHINA UNIV OF PETROLEUM (EAST CHINA)
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