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Sleeper longitudinal-transverse resistance dynamic detector and detecting method

A technology of lateral resistance and detector, applied in force/torque/work measuring instruments, instruments, measuring devices, etc., can solve problems such as disturbance of the ballast bed and slow detection speed, and achieve low labor intensity, lightweight instruments, and simple operation. Effect

Active Publication Date: 2014-03-12
CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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  • Abstract
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  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The test method in the above-mentioned prior art disturbs the rail, adjacent sleepers and ballast bed or requires a reaction device, and the detection speed is slow

Method used

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  • Sleeper longitudinal-transverse resistance dynamic detector and detecting method
  • Sleeper longitudinal-transverse resistance dynamic detector and detecting method
  • Sleeper longitudinal-transverse resistance dynamic detector and detecting method

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specific Embodiment

[0043] Such as Figure 1a , Figure 1b , figure 2 As shown, before the test, place the longitudinal and transverse bearing devices 2-1 and 2-2 of the sleeper on the upper or side of the sleeper, place the acceleration or displacement sensor 1 on the upper part of the bearing device, and place the force sensor 5 on the side of the bearing device to fix , the tester host 3 is connected to the acceleration or displacement sensor 1 and the force sensor 5 respectively. During the test, the loading device 8 is held in hand, and a dynamic load is applied horizontally to the position of the force sensor, and the force sensor transmits the force to the sleeper through the bearing device, so that the sleeper is displaced. The dynamic load value and the resulting displacement change are measured by the force sensor 5 and the acceleration or displacement sensor 1 respectively, and the measured signal is transmitted to the tester host 3 through the cable, and the tester host 3 automatica...

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Abstract

The invention discloses a sleeper longitudinal-transverse resistance dynamic detector and detecting method. The detector comprises a loading device, a sleeper longitudinal-transverse bearing device and an electronic testing device. The end of the loading device is provided with an impact head. An impact hammer and a spring augmenter are disposed inside the impact head. The electronic testing device comprises a force sensor and an acceleration or displacement sensor, wherein the force sensor and the acceleration or displacement sensor are respectively connected with a tester mainframe. The acceleration or displacement sensor is disposed on the upper portion of the sleeper longitudinal-transverse bearing device. The force sensor is disposed on the side of the sleeper longitudinal-transverse bearing device. The detector capable of dynamically detecting sleeper longitudinal and transverse resistance is light, convenient to use, simple to operate, simple to mount, accurate and objective in data, and capable of automatically printing and saving detecting results, labor intensity of detecting personnel is lowered, and detecting efficiency is increased.

Description

technical field [0001] The invention relates to a technology for detecting the longitudinal and lateral resistance of a sleeper, in particular to a dynamic detector and a detection method for the longitudinal and lateral resistance of a sleeper. Background technique [0002] The longitudinal and lateral resistance of the sleeper is the mechanical index of the ballasted track bed, which plays an important role in the strength and stability of the track structure. The relevant standards of high-speed railways in my country stipulate that the longitudinal resistance of ballasted track sleepers should not be less than 14kN / sleeper, and the transverse resistance should not be less than 12kN / sleeper. [0003] Before the ballasted track line is opened, the longitudinal and lateral resistance of the sleeper should be tested. In the prior art, the detection of the longitudinal resistance of the sleeper adopts jack loading, that is, a hydraulic jack is set between the two sleepers, t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/00
Inventor 肖金凤邢亮孙嘉良杨永强李树峰
Owner CHINA RAILWAY FIFTH SURVEY & DESIGN INST GRP
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