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Shear force sensor

A force sensor and force measurement technology, applied in the field of shear force sensors, can solve the problems of low measurement accuracy and difficult implementation of shear force sensors, and achieve the effects of improving measurement accuracy and reducing measurement costs.

Inactive Publication Date: 2015-01-21
RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Aiming at the defects in the above-mentioned prior art, the present invention solves the problems that the existing shear force sensor is difficult to implement and has low measurement accuracy

Method used

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Embodiment Construction

[0017] For a clearer and more comprehensive understanding of the characteristics, effects and technical objectives of the shear force sensor of the present invention, further detailed description will be given below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Such as figure 1 As shown, the shear force sensor in one embodiment of the present invention includes that one side of the metal force-measuring support base 10 is a circular force-measuring surface 11, and the middle part of the force-measuring surface 11 is integrally formed or separately connected. Force plate 20. Surrounding the area of ​​the force measuring plate 20, a plurality of force measuring sensing convex teeth 12 are provided on the force measuring surface 11. The force measuring sensing convex teeth 12 can be a plurality of concentric ring convex teeth, or spiral convex teeth, when they are concentric ring convex teeth , the concentric ring spacing is 1-2mm; w...

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Abstract

The invention relates to a shear force sensor comprising a force measuring supporting seat and a strain gage. The middle of the force measuring surface of the force measuring supporting seat is provided with a force measuring plate, force measuring sensing convex teeth are arranged on the force measuring surface surrounding the force measuring plate, and the strain gage is fixed to the force measuring plate in an adhered manner; by means of the force measuring sensing convex teeth, the shear force of the surface to be detected is conducted inwardly to the region of the force measuring plate, the strain gage deforms, and the value of the shear force of the surface to be detected is acquired. Thus, the problems that according to an existing shear force sensor, the implementation is difficult, and the measurement accuracy is low are solved.

Description

technical field [0001] The invention relates to the technical field of track detection, and is applied in the process of track safety detection, in particular to a shear force sensor. Background technique [0002] During the construction and later use of the track, the stress state of the track is monitored to achieve the monitoring of the running state of the train and the state of the track structure. Therefore, it is necessary to apply "shear sensors" on both sides of the track to detect the status of the track. The existing "shear sensors" are mostly "non-perforated shear sensors", which need to be pasted and installed during use. On both sides of the track to be tested, symmetrical force-measuring points need to be pressed and fixed on both sides of the track to be tested. However, in the implementation process of this detection method, on the one hand, it can only be implemented by adding additional installation devices through external assistance; in addition, the Th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B61K9/08
CPCB61K9/08
Inventor 柴雪松冯毅杰凌烈鹏李旭伟田德柱李家林谢锦妹于国丞薛峰李健超
Owner RAILWAY ENG RES INST CHINA ACADEMY OF RAILWAY SCI