X-shaped fast positioning device for railway rail center position measurement

Abstract

The invention relates to an X-shaped fast positioning device for railway rail center position measurement. For the steel rail three-dimensional space posture observation in the prior art, a rail geometrical state measuring instrument needs to be put in a steel rail measuring position for positioning, and the collecting efficiency is lower. The X-shaped fast positioning device comprises a lower layer X arm and an upper layer X arm provided with center open holes, wherein the two arms are respectively straight arms, the upper and lower center open holes are aligned, crossed and combined for forming an X shape; a locking screw nut is arranged in each center open hole, a prism rod is inserted in each locking screw nut, the bottom end of each prism rod is a concave spherical surface, a semi-cylinder is arranged under the concave spherical surface, and is positioned on the surface of the steel rail, the bottom surface of the semi-cylinder is a flat plane, and the top surface of the semi-cylinder is a spherical surface; the end part of the lower layer X arm and the end part of the upper layer X arm are respectively provided with downwards steel rail clamp hook heads which are positioned at the two sides of the steel rail; fixing buckles are arranged between the same ends of the lower layer X arm and the upper layer X arm positioned at the opposite sides of the steel rail. The X-shaped fast positioning device has the advantages that the fast positioning of the high-speed railway rail center position can be realized through a full station instrument, the collecting efficiency is improved, the measurement is simple, convenient and flexible, and the measuring precision is also greatly improved.

Description

technical field [0001] The invention belongs to the technical field of railway measurement, and in particular relates to an X-type rapid positioning device for measuring the center position of a railway track. Background technique [0002] With the development of my country's high-speed railway construction, track laying, completion acceptance and maintenance work will be gradually carried out. In order to quickly understand the three-dimensional space attitude of the rail on site, it is necessary to place a track geometric state measuring instrument at the measurement position of the rail for positioning, and then through the whole The station instrument observes the prism fixed on the track geometric state measuring instrument, and then calculates the three-dimensional coordinates of the track center position through the three-dimensional coordinates of the prism center combined with the fixed mechanical size of the track geometric state measuring instrument, and compares i...

AI Technical Summary

Problems solved by technology

This method of locating the center of the track using a track geometric state measuring instrument is expensive in equipment, low in acquisition efficiency, and inconvenient to carry.

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