Electronic ruler for railway rail joint maintenance and inspection

Abstract

The invention provides an electronic ruler for railway rail joint maintenance and inspection. The electronic ruler for railway rail joint maintenance and inspection comprises a machine box and a measuring device arranged in the machine box, wherein the measuring device comprises an electronic leveling ruler positioned at the lower layer of the machine box and a DSP correspondingly controlling capacitance measuring; the electronic leveling ruler comprises a plurality of polar plate capacitors which are arranged in parallel and equidistantly; the polar plate capacitors are connected through SPIbuses; each polar plate capacitor is provided with a capacitance measuring point and a capacitance calculation circuit; a control processor and a power supply and signal transmission device connectedto the control processor are arranged on the upper layer of the machine box; and one end of the DSP is connected with the electronic leveling ruler through a hard wire, and the other end of the DSP isconnected with the control processor. Compared with a traditional device for detecting the flatness of a steel rail, the electronic ruler formed by the polar plate capacitors has high measuring precision, the flatness of each point on the steel rail can be measured, uneven positions on the steel rail can be intuitively found through curves, and automatic completion of the whole process and simpleoperation are achieved.

Description

technical field [0001] The invention belongs to the field of rail maintenance equipment, and in particular relates to an electronic ruler used for maintenance inspection of railway rail joints. Background technique [0002] With the rapid development of my country's high-speed rail technology, there are more and more seamless rails. All rails are welded by short rails. If the rails run for a long time, welding quality problems are likely to occur at the rail joints. In order to ensure the safe operation of high-speed trains, it is necessary to inspect the rail joints to check whether the rail joints are straight. If there is a problem at the rail joint, it will be repaired. Whether it meets the safe operation needs of the high-speed train after the repair must also be checked for straightness. [0003] The technical solution for checking the straightness of rail joints in the prior art uses a steel ruler. It is determined whether it is level by observing whether the water ...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to: aim at the existing problem that the straightness of each point within 1 meter of the rail joint weld can not be accurately measured and the measurement accuracy is low, the present invention provides a method for railway rail joint maintenance inspection electronic ruler

Images