Locomotive wheelset connecting rod pin crack ultrasonic probe

Abstract

The invention discloses a locomotive wheelset connecting rod pin crack ultrasonic probe. The locomotive wheelset connecting rod pin crack ultrasonic probe comprises two organic glass delay blocks, a sound insulation layer and two double-crystal probes with flaw detection chips, wherein the sound insulation layer is vertically arranged between the two organic glass delay blocks; the flaw detection chip with an emission end and the flaw detection chip with a receiving end are respectively arranged on the double-crystal probes on two sides of the sound insulation layer; two ferromagnets are attached to both sides of the organic glass delay blocks; the organic glass delay blocks, the sound insulation layer and the ferromagnets are encapsulated in a probe shell; a connector is arranged on one side of the probe shell. The locomotive wheelset connecting rod pin crack ultrasonic probe realizes crack flaw detection of a locomotive wheelset at a single independent finished product state and an assembling state (namely, non-individual, independent and un-disassembly state, i.e. non-detachable overhauling), as well as in-service online detection, real-time tracking and monitoring of connecting rod pins, and the quality of products is improved.

Description

technical field [0001] The invention relates to a probe, in particular to an ultrasonic probe for cracks in a locomotive wheel pair connecting rod pin, belonging to the technical field of probes. Background technique [0002] At present, the non-destructive testing of the connecting rod pins of domestic locomotive wheels is to use magnetic particle testing to detect defects on the surface of the connecting rod pins when they are not assembled or disassembled, that is, in a single and independent state. [0003] The technical requirements for the product drawings of the connecting rod pin of the locomotive wheel set are: to conduct magnetic particle inspection on the surface of the connecting rod pin, and cracks are not allowed. The existing non-destructive testing process for connecting rod pins is to perform magnetic particle inspection on the detection parts in the state of a single and independent finished product of the connecting rod pins, and can only detect crack de...

AI Technical Summary

Problems solved by technology

[0005] 1. It can only detect surface crack defects of locomotive wheel set connecting rod pins in a single and independent state, and cannot detect crack defects of locomotive wheel set connecting rod pins in assembled and undisassembled states;

[0006] 2. In-service online detection, real-time tracking and monitoring of locomotive wheel set connecting rod pins cannot be realized

It is feasible and effective to use the magnetic particle inspection method for the connecting rod pin in a single piece, independent and exposed state; however, it is not a single piece, independent and in the In the online state of service, since the detection part of the connecting rod pin is not visible to the naked eye, that is, the detection part is not exposed, the crack defect of the connecting rod pin cannot be effectively detected by using the existing ultrasonic probe to detect the crack of the connecting rod pin of the locomotive wheel

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