Lorry spiral bevel gear double-row rare earth continuous gas carburization heat treatment equipment

Abstract

The invention relates to lorry spiral bevel gear double-row rare earth continuous gas carburization heat treatment equipment, which relates to automobile spiral bevel gear heat treatment carburization equipment and solves the problems that the defects of thick and big martensite needle and low level of the residue austenite are caused by poor uniformity of a carburization layer and high temperature (higher than the quenching temperature) of a V-region part, the carbon black is easy to generate, the carburization cost is high, the surface hardness of a carburization gear is low, the adhesion and abrasion resistance performance of a gear is poor, the service life is short, and a dripping pipe is easy to block. A material disc and a heating device are arranged in a furnace body, a carburization medium flow rate disc is arranged outside the furnace body and is connected with the furnace body, an anti-coking dripping and nitrogen blockage removing device of the carburization furnace is connected with the furnace body, and a direct connection type lateral fan is arranged on the side wall of the furnace body. The lorry spiral bevel gear double-row rare earth continuous gas carburization heat treatment equipment has the advantages that the operation cost is reduced, the heat treatment production efficiency and the product quality are improved, and the rare earth carburization technology is adopted, so the quality and the yield of the products are greatly improved.

Description

technical field [0001] The invention relates to carburizing heat treatment equipment for spiral bevel gears of automobiles, in particular to double-row rare earth continuous gas carburizing heat treatment equipment for spiral bevel gears of trucks. Background technique [0002] At present, the uniformity of the carburized layer of the carburized gear parts produced by the double-row continuous gas carburizing automatic production line is poor, and the temperature of the parts in the V zone is higher than the quenching temperature, resulting in the disadvantages of coarse martensitic needles and excessive grades of retained austenite ;It is easy to produce carbon black, the amount of methanol is large, the cost of carburizing is high, the hardness of the carburized gear surface is low, the performance of the gear against adhesive wear is poor, and the service life of the produced spiral bevel gear is short; double-row carburizing furnace equipment The failure rate is high; th...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the disadvantages of poor carburized layer uniformity of carburized gear parts in the existing production line and the temperature of V-zone parts being higher than the quenching temperature, resulting in thick martensite needles and out-of-tolerance grades of residual austenite, carbon black is easily produced , the amount of methanol used is large, the cost of carburizing is high; the hardness of the carburized gear surface is low, the performance of the gear against adhesive wear is poor, the service life of the spiral bevel gear produced is short, the failure rate of the equipment is high, and the drip tube is easy to block To solve the problem, a double-row rare earth continuous gas carburizing heat treatment equipment for the spiral bevel gear of the truck is provided. The specific technical solution to solve the problem is as follows:

Images