The Parallel Connection Structure of Measuring Wheel and Displacement Sensor of Track Measuring Instrument

Abstract

The invention relates to a parallel connection structure for track measurement instrument measuring wheels and displacement sensors. The accuracy and reliability of data collection are directly influenced by the spatial arrangement of the track measurement instrument measuring wheels and the displacement sensors. The parallel connection structure comprises a measuring wheel and a displacement sensor, wherein an installation base plate which is provided with an upward opening and shaped like a Chinese character 'ji' is arranged on the bottom face of one end of a beam, a guide track perpendicular to the track direction is arranged on the bottom face of the installation base plate, a guide track slide block is arranged in the guide track, the measuring wheel is fixed to the bottom face of the guide track slide block through a measuring wheel axle, the displacement sensor is arranged in a groove in the installation base plate shaped like the Chinese character 'ji', and the displacement sensor is connected with the guide track slide block through an L-shaped connection plate. The measuring wheel is fixed to the slide block of the guide track, the slide block and the displacement sensor are installed on the upper side and the lower side of the installation base plate respectively, and therefore the vertically-distributed parallel connection relation is achieved, the reasonable layout of the measuring wheel and the displacement sensor on the aspect of spatial positions is achieved, and the compactness of a beam arrangement structure is improved.

Description

technical field [0001] The invention belongs to the technical field of railway measurement, and in particular relates to a parallel connection structure of a measuring wheel of a rail measuring instrument and a displacement sensor. Background technique [0002] The smoothness of the railway track refers to the ups and downs and left-right deviation of the track due to the long-term operation of the train on the track and the change of the track subgrade, which affects the normal running of the train. With the continuous improvement of train speed, in order to achieve the safety and comfort of train operation, especially the smoothness of high-speed railway tracks directly affects the safety and stability of high-speed trains, the design and construction of lines must achieve high smoothness, The railway department has higher and higher requirements on the parameters of the railway irregularity state, so the detection and maintenance of the track smoothness is particularly im...

AI Technical Summary

Problems solved by technology

[0003] At present, the detection of railway track smoothness is mostly carried out by means of a track geometric state measuring instrument, that is, a track measuring instrument. Measuring wheels are installed on the inner side of the running wheels at both ends of the instrument beam to measure the gauge or track vector distance. The displacement perpendicular to the rail direction must be obtained by displacement sensors. The spatial layout of the measuring wheel and displacement sensors directly affects the accuracy and reliability of data collection, and also affects the compactness and rationality of the overall beam structure.

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