Support roller for wheel flaw detection

Abstract

The invention provides a support roller for wheel flaw detection. The support roller comprises an annular roller core, an annular roller ring and a fastening element, wherein the roller ring comprisesan upper roller ring and a lower roller ring; an annular V-shaped groove is formed in the outer circle surface of the roller ring; the roller core comprises a wheel hub, a wheel disc and a wheel rim;a positioning groove is processed in the outer circle surface of the wheel rim; an annular lug boss is arranged at the inner ring of the roller ring; the inner ring surface of the roller ring is in contact with the outer circle surface of the wheel rim; a plurality of through holes are uniformly formed in the peripheral direction of the annular position, inserted in the positioning groove, of theannular lug boss; a sink hole is processed in one outer side of each through hole; a cylinder head of a socket head cap screw is sunk into the sink hole. The support roller can adapt to the flaw detection requirements of train wheels in various specifications; a split dismountable structure is used; the structure is simple and compact; the installation is convenient; during the repair, the integral replacement is not needed; the overhaul difficulty is reduced; the overhaul time is saved; different materials are used; under the condition of ensuring the support roller intensity, certain guarantee is realized on the surface quality of the wheel; the market competitive power of wheel products is enhanced.

Description

technical field [0001] The invention relates to an idler roller for flaw detection of internal defects of train wheels, which belongs to the technical field of mechanical equipment for component detection. . Background technique [0002] In order to prevent the finished train wheels from leaving the factory with internal defects exceeding the standard, the train wheels are tested by ultrasonic flaw detection, a non-destructive testing method, before leaving the factory. At present, the on-line flaw detection of train wheels adopts contact flaw detection, water is used as the couplant, and the wheels are placed vertically. [0003] Before the inspection, the train wheel is located on the "incoming wheel position" track, and the transport trolley located above the flaw detector travels above the train wheel, adjust the position of the hole center of the train wheel so that it is located in the center of the two pressure rollers of the transport trolley, and then lower the tra...

AI Technical Summary

Problems solved by technology

[0005] In order to make the roller suitable for driving train wheels of various specifications (φ600---φ1250), the size of the roller is relatively large (the diameter is about 500, and the roller width is approximately 71mm). Once the V-shaped groove wears out, the train with a relatively narrow rim The top of the rim of the wheel will be in contact with the bottom of the V-shaped groove, which will cause shaking or even slippage during the flaw detection process of the train wheel. The idler roller needs to be replaced. Once the idler roller needs to be replaced, it needs to be disassembled together with the idler shaft, which is troublesome to replace. , inconvenient assembly and disassembly, time-consuming and laborious

In addition, since water is used as coupling agent for flaw detection, the cast steel idler is easy to rust, and the cast steel idler has a certain hardness, which affects the appearance quality of the contact with the train wheel

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