Method for measuring elastic-strip pressure and apparatus

A method of measuring and buckle pressure technology, which is applied in the direction of measuring devices, measuring force, instruments, etc., can solve the problems of low accuracy of measurement results and long measurement time

Active Publication Date: 2009-07-29
CHINA ACADEMY OF RAILWAY SCI CORP LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] Therefore, the task of the present invention is to propose a method for determining the buckle pressure of the elastic

Method used

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  • Method for measuring elastic-strip pressure and apparatus
  • Method for measuring elastic-strip pressure and apparatus
  • Method for measuring elastic-strip pressure and apparatus

Examples

Experimental program
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Embodiment Construction

[0037] Embodiments of the present invention will be described below, and these descriptions are merely illustrative rather than limiting of the present invention.

[0038] reference now figure 1 , which shows a preferred embodiment of the present invention. In this embodiment, the clip pressure measuring device is generally shown at 100 . The elastic strip buckle pressure measuring device 100 includes a clamping device for clamping the elastic strip. In this embodiment, the clamping device is a four-link clamp 1, but it is understood that other clamping devices known to those skilled in the art can also be used.

[0039] In this embodiment, the force-applying device is a hydraulic device. The hydraulic equipment includes a piston 2 , a valve block 3 , a hydraulic cylinder 4 , an oil tank 8 , a hydraulic pump 9 and a drive motor 11 . In addition, in order to release the clip 1 to restore the original position after the buckle pressure of the elastic strip is measured, an un...

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PUM

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Abstract

The invention provides a measuring method of spring bar fastener pressure. The method comprises the following steps: (1) applying an upward load to a spring bar which comprises a toe end acting on a steel rail; (2) measuring a load-displacement relation curve of the load applied on the spring bar while the spring bar move upwards; (3) determining a discontinuity point with a reducing slope coefficient in the load-displacement relation curve as an inflexion point; and (4) determining the load at the inflexion point as the spring bar fastener pressure. The invention further provides a measuring device of spring bar fastener pressure.

Description

technical field [0001] The invention relates to a method for measuring the buckle pressure of an elastic strip and a device for measuring the buckle pressure of an elastic strip. Background technique [0002] At present railway lines use elastic strips to crimp the rails to the sleepers. In order to ensure the safety of driving, it is necessary to measure the buckle pressure of the clip on the rail. The elastic bar buckle pressure measuring device needs to lift the spring bar in the process of measuring the buckle pressure, and the load when the spring bar is just completely separated from the insulating gauge block is the buckle pressure of the spring bar on the rail. [0003] In the "Technical Conditions for the Supply of Type III Spring Clips" formulated by the Transportation Bureau of the Ministry of Railways, a device for measuring the pressure of Type III clips is proposed, in which hydraulic jacks are used to load, four-link clamps to clamp the clips, and other manua...

Claims

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Application Information

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IPC IPC(8): G01L1/00
Inventor 杨其全邹定强田常海
Owner CHINA ACADEMY OF RAILWAY SCI CORP LTD
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