Combined polymer material gear structure

Abstract

The invention provides a combined high-polymer material gear structure to solve the problems that a metal gear in the prior art is complicated in processing technology, and high in cost; meshing noise is easily generated; and a high-polymer material gear is low in strength, finite in transmission loads and the like. The combined high-polymer material gear structure comprises a metal mold insert, a gear ring insert, and a high-polymer material flute profile, wherein the excircle of the metal mold insert is provided with connecting teeth and caulking grooves; the quantity, the distribution positions and the sizes of the caulking groove are matched with those of stop teeth on an inner circle of the gear ring insert; the stop teeth are arranged on the inner circle of the gear ring insert; a gear ring is arranged on the excircle; the quantity, the distribution positions and the sizes of the teeth of the gear ring are matched with those of the high-polymer material flute profile; and the high-polymer material flute profile is a high-polymer material gear which is molded at the outer side of an assembly part of the metal mold insert and the gear ring insert in an injection manner. The combined high-polymer material gear structure has the beneficial technical effects that the strength and the rigidity of the high-polymer material gear are effectively improved; the loading capacity of the high-polymer material gear is improved; and the high-polymer material gear structure is simple in manufacturing process, and low in cost.

Description

technical field [0001] The invention relates to a combined gear structure, in particular to a combined high polymer material gear structure. Background technique [0002] The gears in the prior art are usually made of metal materials, and the gears are obtained after mechanical processing such as billet making, gear hobbing, gear shaping, shaving, and gear grinding. Another manufacturing method is to use powder metallurgy technology to use metal powder after pressing and sintering get gear. The advantages of metal material gears are high strength, good wear resistance, and high temperature resistance; the disadvantages are that the processing technology is complicated and the cost is high. It is easy to generate meshing noise. For gear transmission systems whose load requirements are much lower than the strength of metal gears, gears processed by injection molding of polymer materials can be used. Gears made of polymer materials have good vibration-absorbing properties, w...

AI Technical Summary

Problems solved by technology

[0003] In order to solve the problems of complex processing technology, high cost and easy meshing noise existing in metal gears in the prior art, as well as the low strength and limited transmission load of polymer material gears, the present invention proposes a combined polymer material gear. gear structure

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