Gear profile heat treatment device for tank crawler drive gear

Abstract

The invention relates to a heat treatment device for induction heating of the tooth profile of a driving gear of a tank track. By providing a new mode induction heater and separate cooling device, the problems of uneven depth of induction hardening, low surface hardness of tooth profile and excessive hardness of tooth root part of the driving gear of the track of the tank vehicle are solved by induction heating. The induction heating device is composed of copper billets imitating the tooth profile on both sides, silicon light sheets, insulating plates, water flushers and heat insulation plates to prevent the tooth top from being heated. The cooling device is installed in the induction heating device. On the projection position parallel to the induction heating device below, the distance from the induction heating device is more than 10cm, it is made of hollow copper billet, the upper part is connected to the quenching machine tool, and the lower half is the same as the copper billet of the induction heating device. There are dense spray holes. Compared with the carburizing and quenching heat treatment process, the present invention has the advantages of rapidity, high efficiency, small deformation, energy saving, environmental protection and high degree of automation.

Description

Technical field: [0001] The invention relates to a gear heat treatment device, in particular to a heat treatment device for inductively heating the gear profile of a tank crawler drive gear. [0002] technical background: [0003] The driving gear of the track transmission part of the military tank vehicle is responsible for the driving function of the tank vehicle. The special-shaped gear cannot work in the lubricating medium (such as: oil film), and can only drive the track in the atmosphere to drive the tank forward. Therefore, it is required that the surface hardness of the gear tooth profile is high, the depth of the hardened layer is uniform, and the wear resistance is good; while the top and root of the tooth are not allowed to be hardened, and the impact resistance is good. The ordinary heat treatment method of buried oil quenching and induction heating has the problem of uneven heat treatment depth or substandard surface hardness of the tooth profile, which makes the...

AI Technical Summary

Problems solved by technology

[0004] The present invention solves the problems of uneven induction hardening depth, low surface hardness of the tooth profile and excessive hardness of the tooth top and tooth root of the active gear of the track of the tank vehicle by providing a new mode-dependent induction heater and a separate cooling device. Solve the problem of the low pass rate of the primary inspection of the active gear of the tank tracked vehicle

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