歯の加工法の違いによるポリアセタール歯車の騒音比較

概要

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The mass production of plastic gears by injection molding has many advantages ; however, hobbing has been used in cases where injection molding could not be applied due to economical problems of mold shrinkage in the small-volume production of a wide variety of gears and technical problems in the processing of large-sized thick gears. It has been said that there are differences in the magnitude of noises between injection-molded plastic gears and hobbed plastic gears causing a difference in acoustic characteristics based on the difference of crystallinity of their gear surfaces. In this study, by using a polyacetal gear, and by measuring noises of both gears at each point of time when the properties of their gear surfaces were changed by the wear during a long period of operation, the difference of noises based on the difference of plastic gear processing methods was verified quantitatively based on experimental results.
1995-02-25