Quenching device for supporting wheels

Abstract

The invention discloses a quenching device for a thrust wheel. The quenching device comprises a frame body used for providing a sealed heat-insulation environment, a heating unit and a cooling unit, wherein the heating unit comprises a platform used for bearing a thrust wheel, an induction coil body used for heating the thrust wheel and a supporting shaft used for rotating; the platform is located at the top of the supporting shaft and driven by the supporting shaft to rotate; a circular-platform-shaped positioning block is connected to and located above the center of the platform, and the upper end of the positioning block is clamped in the lower end of the thrust wheel; the induction coil body is a hollow columnar cylinder which has the same shape as the thrust wheel, and is connected to a first inner side of the frame body in a sliding manner; the size of the induction coil body allows the induction coil body exactly sleeves the thrust wheel; the cooling unit comprises a spray cover which has the same shape as the thrust wheel, is located above the platform and sleeves the induction coil body; the spray cover is connected to a second inner side, corresponding to the first inner side, in the frame body in a sliding manner; and nozzles in matrix arrangement and the same size are arranged on the inner side of the spray cover and face to the thrust wheel. The quenching device has the advantage that the hardness of the thrust wheel is uniform.

Description

Technical field [0001] The invention relates to a heat treatment process for metal materials, and more specifically, the invention relates to a quenching device for a supporting wheel. Background technique [0002] The track roller is one of the four-wheel belts of the tracked construction machinery chassis. It is mainly used to carry the weight of large machinery such as bulldozers and excavators, so that the track can move along the direction of the rollers. Since the working environment of the supporting roller is very bad and the wear phenomenon is very serious, the supporting roller is required to have strong strength, hardness and wear resistance. In the prior art, a quenching process is usually used to increase the hardness of the surface of the roller by quenching and cooling the surface of the roller. In the quenching process, induction coils are usually used to heat the rollers, and intermediate frequency heating is used to ensure the hardness of the rollers. [0003] H...

AI Technical Summary

Problems solved by technology

[0004] Aiming at the deficiencies in the above-mentioned technologies, the present invention provides a quenching device for the track rollers, which solves the problems of the track rollers in the prior art by providing an induction coil body and a spray cover with the same shape as the track rollers. The problem of uneven hardness after quenching has the advantage of uniform hardness of the rollers

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