Unidirectional loading gear

Abstract

The invention discloses a unidirectional loading gear. The unidirectional loading gear comprises a gear body. The gear body comprises an end face and gear teeth arranged on the end face. Tooth spacesare formed between the gear teeth. The gear teeth comprise a supporting layer located on one sides of the tooth spaces, and a hardened layer which is arranged on the supporting layer and used for loading. The hardened layer comprises a hardening layer connected with the supporting layer, and a high-hardness surface layer arranged on the hardening layer. The high-hardness surface layer is located on the other sides of the tooth spaces. The thickness of the supporting layer is larger than that of the hardening layer. The thickness of the hardening layer is larger than that of the high-hardness surface layer. The gear is simple in structure, high in gear strength, good in abrasion resistance, long in service life and high in gear loading capacity, the hardened layer of the gear teeth of the gear is effectively prevented from being deformed severely, and the situation that embrittlement of the high-hardness surface layer occurs or the fatigue resistance is reduced is prevented.

Description

technical field [0001] The invention relates to the field of gears, in particular to a one-way load gear. Background technique [0002] As we all know, gears are key components in mechanical equipment, and they are widely used in industrial fields such as automobiles, airplanes, tanks, and ships. It has the advantages of accurate transmission, compact structure and long service life. Gear transmission is the most common type of mechanical vibration in modern machines. It is an important form of transmitting mechanical power and motion, and is an important basic part of mechanical products. Compared with belt, chain, friction, hydraulic and other machinery, it has a series of advantages such as large power range, high transmission efficiency, high peripheral speed, accurate transmission ratio, long service life, and small size and structure. Therefore, it has become an indispensable transmission part for many mechanical products, and it is also the transmission form with th...

AI Technical Summary

Problems solved by technology

[0004] One side of the gear tooth is the load-bearing surface, and the other side is rarely loaded in reverse. In addition, the gear is rarely installed in the reverse direction after being installed in one direction, which belongs to the light-loaded surface. The existing processing methods are no matter Both the heavy-loaded surface and the light-loaded surface are heated and quenched together. Although the quenching process requirements are met, the quality of the gear is reduced, and the heavy-loaded surface of the sawtooth is more likely to be worn or broken in subsequent processing operations. , shortened service life

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