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Dynamic monitor for ballast bed and method

A technology of dynamic monitoring and monitors, applied in the direction of instruments, measuring force, measuring devices, etc., can solve the problems of long preparation period, test accuracy of damaged roadbed, etc., and achieve the effect of simple operation

Active Publication Date: 2012-09-12
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method has a long preparation period before testing, damage to the subgrade and low test accuracy

Method used

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  • Dynamic monitor for ballast bed and method
  • Dynamic monitor for ballast bed and method
  • Dynamic monitor for ballast bed and method

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Embodiment Construction

[0012] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0013] The track bed dynamic monitor of the present invention, its preferred embodiment is:

[0014] It includes a pre-tightening device, a force sensor, and a bearing device arranged in sequence from top to bottom, and a displacement measurement sensor is arranged in the bearing device, and the force sensor and the displacement measurement sensor are respectively connected with an electronic testing device.

[0015] The carrying device includes a carrying plate, and the displacement measurement sensor is arranged on the carrying plate.

[0016] The electronic test device includes a tester and a panel. The side of the tester is provided with a printer interface and a charging socket, and the panel is provided with a liquid crystal display and buttons.

[0017] The above-mentioned ballast bed dynamic monitor of the present invention realizes th...

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Abstract

The invention discloses a dynamic monitor for a ballast bed and a method. The dynamic monitor for the ballast bed comprises a pre-tightening device, a force sensor and a loading device which are arranged in turn from up to down; a displacement measuring sensor is arranged in the loading device; the force sensor and the displacement measuring sensor are respectively connected with an electronic test device; the pre-tightening device, the force sensor and the loading device are arranged between a steel rail and the ballast bed; a pre-tightening force is applied by the pre-tightening device; a dynamic strain generated on the ballast bed during the running process of a train is monitored by the displacement measuring sensor; a dynamic load generated on the ballast bed during the running process of the train is monitored by the force sensor; a monitored data signal is transmitted to the electronic test device through a cable; and the data is processed by the electronic test device. The dynamic monitor for the ballast bed is simple in operation and high in measuring speed and has no interference to the running train and no harm to a roadbed.

Description

technical field [0001] The invention relates to a device for monitoring the dynamic load and dynamic strain relationship of a ballast bed under train running conditions, in particular to a ballast bed dynamic monitor and method. Background technique [0002] The subgrade is the foundation of the line, and its stiffness and strength affect the geometric dimensions and smoothness of the track structure. In the roadbed design and construction specifications, the design dynamic load and compact state of the roadbed are clearly stipulated for different road grades. [0003] The monitoring methods in the prior art are mainly realized by embedding force sensors, displacement sensors or acceleration sensors on the surface of the foundation bed. This method takes a long period of preparation before testing, damages the subgrade, and has low test accuracy. Contents of the invention [0004] The object of the present invention is to provide a ballast bed dynamic monitor and method ...

Claims

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Application Information

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IPC IPC(8): G01L1/00G01B21/32
Inventor 郭绍影肖金凤东爱明邢亮孙嘉良蔡泓徐惠纯程慧林李树峰刘嘉
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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