Cable bending displacement measuring device

Abstract

The invention discloses a cable bending displacement measuring device which comprises a lateral measuring ruler and an offset measuring unit. Supporting portions are arranged at the two ends of the measuring ruler. The offset measuring unit includes a measuring rod, a sliding seat in sliding connection with the measuring ruler horizontally, and a sliding cylinder fixed on the sliding seat vertically. A sliding block in sliding connection with the sliding cylinder is fixed at one end of the measuring rod and the other end of the measuring rod extends out of the sliding cylinder. A lateral displacement sensor is arranged at the sliding seat and a bending displacement sensor is arranged at the sliding block. During measurement, the measuring ruler is in close contact with a to-be-measured cable by the supporting portions; the offset measuring unit slides from one end of the measuring ruler to the other end and the outer end portion of the measuring rod is kept to be abutted against the outer surface of the to-be-measured cable during the sliding process; the lateral displacement sensor measures the lateral move displacement amount of the sliding seat in real time and the bending displacement sensor measures the bending displacement amount of the cable in real time during the sliding process; and the measurement data are displayed in real time by a display panel. The measurement becomes simple and convenient and the accuracy is high.

Description

technical field [0001] The invention relates to the technical field of linear bending degree measurement, in particular to a cable bending displacement measurement device. Background technique [0002] The manufacturing process of cable accessories (terminals, intermediate joints) has a great impact on the safe operation of power cable lines. According to data, in most cable failure cases, cable failures caused by substandard cable accessories installation processes account for more than 30%. [0003] Cable accessories need to be heated and straightened during the production and installation process, and the heating and straightening effect directly affects the installation quality; Regarding the evaluation of the effect of heating and straightening, there are the following regulations: the bending offset of each 600mm length of the cable shall not be greater than 2mm. At present, at the cable installation site, the usual measurement method is to place two long rulers verti...

AI Technical Summary

Problems solved by technology

At present, at the cable installation site, the usual measurement method is to place two long rulers vertically at the place where the cable may have the largest offset, and then judge whether it is up to standard by human eyes; the error introduced by human factors in the measurement process is very large, and the accuracy is very high. The accuracy is low and the accuracy is difficult to meet the standard requirements

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