Sealing device and ultrasonic wheel detector

Abstract

The invention relates to a sealing device and an ultrasonic wheel detector. The sealing device comprises a sealing block and a plate shaft. The plate shaft is provided with a plate shaft through holewhich penetrates through the two ends of the plate shaft. The sealing block is provided with multiple sealing block wire passage holes. At least one end of the plate shaft through hole is provided with an inner conical surface. The diameter of the inner conical surface gradually increases from the middle of the plate shaft to the end of the plate shaft. At least one sealing block is arranged. Thesealing block is provided with an outer conical surface matched with the inner conical surface. The sealing block is in interference fit with the corresponding end of the plate shaft through hole. Wire cables are in interference fit with the sealing block wire passage holes. The sealing device and the ultrasonic wheel detector have the beneficial effects that the problems in sealing of coupling fluid of the ultrasonic wheel detector are solved, the wheel detector can be conveniently and quickly detached or installed, the sealing performance is improved, operation is convenient and quick to carry out, the time for filling glue to dry is shortened, and the assembly efficiency of the wheel detector is improved; and the service life of the wheel detector can be effectively prolonged, the problems of gas intake and interior pressure reduction of a wheel detector caused by fluid leakage happen less, and the detection quality of the wheel detector is improved.

Description

technical field [0001] The invention relates to the field of ultrasonic detection of rails, in particular to a sealing device and an ultrasonic detection wheel, and is especially suitable for the detection wheel of a rail flaw detection vehicle. Background technique [0002] With the rapid development of railways, the safety of rails has gained extra attention. Rail non-destructive testing technology has a large number of applications on railways. For a long time, ultrasonic flaw detection trolleys on railways have made great contributions to the detection of rails, but at the same time, there is a serious lag in the development of flaw detection trolley technology. The single-track hand-push detection speed is slow, the artificial interference factor is large, and the manipulation technology is difficult. In recent years, the double-track rail flaw detector has developed rapidly, and the ultrasonic detection wheel of the flaw detection device is adopted. The ultrasonic pr...

AI Technical Summary

Problems solved by technology

[0004] The current method is usually to manually pour glue into the disk shaft of the disk group module to seal the cable and the threading hole, and the seal block and the disk shaft. Affected by human experience factors, the sealing effect of the glue is uneven, and it is easy to Leakage occurs, and the glue takes 2-3 days to solidify, and the work efficiency is seriously lagging behind. At the same time, the probe wheel will be damaged when it is disassembled and repaired, which restricts the performance of the probe wheel

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