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Spiral Axial Compression Experimental Displacement Meter

A technology of screw type and displacement meter, which is applied in the direction of measuring devices, instruments, and mechanical devices, etc. It can solve the problems of small measuring range, poor precision, and harsh service conditions, and achieve the effects of high precision, convenient installation and use, and large effective range

Inactive Publication Date: 2018-02-06
HOHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The electronic displacement gauge has high precision, but its use conditions are harsh, and the data export must use a strain collector with a special interface, and it is easy to damage
Mechanical displacement gauges are mainly dial gauges and dial gauges. This kind of displacement gauge is not easy to install, has a small range and poor accuracy. It is not suitable for laboratory use at present.

Method used

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  • Spiral Axial Compression Experimental Displacement Meter
  • Spiral Axial Compression Experimental Displacement Meter
  • Spiral Axial Compression Experimental Displacement Meter

Examples

Experimental program
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Embodiment Construction

[0012] Such as figure 1 As shown, the screw type axial pressure test displacement gauge of the present invention mainly includes a fixed cylinder 1 , a rotating cylinder 2 and a threaded rod 31 . Wherein, the rotating cylinder 2 is rotatably connected to one end of the fixed cylinder, and the threaded rod is coaxial with the rotating cylinder and threaded 31 . A through hole 11 is opened along the length of the fixed cylinder, a scale 21 is provided along the circumference of the rotating cylinder, and a top plate 32 is integrally formed or fixedly connected to the end of the threaded rod.

[0013] When in use, the fixed cylinder and the threaded rod are squeezed, and the threaded rod moves downwards, making the rotating cylinder rotate around the axis. Every time the threaded rod turns a pitch, the rotating cylinder will rotate a circle. Therefore, the threaded rod can be moved Length and scale on rotating cylinder to calculate axial displacement. It can be seen from the ab...

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Abstract

The invention discloses a spiral axial pressure experimental displacement gauge, which comprises a fixed cylinder, a rotating cylinder rotatably connected to one end of the fixed cylinder, and a threaded rod coaxial with the rotating cylinder and threaded; A through hole is opened in the direction of the length, a scale is provided along the circumference of the rotating cylinder, and the end of the threaded rod is integrally formed or fixedly connected with a top plate. The invention has the advantages of convenient installation and use, large effective range and high precision.

Description

technical field [0001] The invention belongs to measuring devices, in particular to a screw type axial pressure test displacement meter used in civil engineering experiments. Background technique [0002] Axial compression test is an important part of civil engineering test. In order to meet the needs of scientific research and engineering, full-scale axial compression tests of column members are often carried out in the laboratory. The height of the members is usually more than 3m, and the axial displacement is generally higher than the current displacement. Measurement range. [0003] There are two main types of displacement gauges used in civil engineering laboratories today: electronic displacement gauges and mechanical displacement gauges. The electronic displacement gauge has high precision, but its use conditions are harsh, and the data export must use a strain collector with a special interface, and it is easy to damage. Mechanical displacement gauges are mainly di...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01B5/02
Inventor 伍凯张贺曹平周桑胜涛陈峰
Owner HOHAI UNIV
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