547 金属とCOPNA樹脂よりなる複合無潤滑低騒音歯車の開発(知的材料・特性評価, OS-17 知的材料・構造システム)

概要

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Recently, a low noise gear without lubrication has been developed. In the gear, however, strength is small, and so it is difficult to utilize it to practical gear trains. The present article provides a new type gear which consists of COPNA material and steel. In our gear, a steel gear with profile shifted gear teeth is provided. COPNA material is inserted in a grove, which is cut around the gear teeth of the steel gear. Hence, the tooth made of COPNA material is supported at both sides. This means that only COPNA gear tooth contacts to the engaged gear tooth, but steel gear tooth does not contact. COPNA material is one of the solid lubricants, and so lubrication is not required when using this gear. Production processes are presented, and its characteristics are investigated for the lubrication and noise. It is ascertained that the strength of our gear is greater than a plastic gear.
社団法人日本機械学会の論文
2004-09-27