Effects of misalignment and crowning on contact characteristics of crown gear coupling. (June 2019)

• Record Type: Journal Article
• Authors: Guan, Yabin; Fang, Zongde; Yang, Xiaohui; Chen, Guoding
• Other Names: Huo Dehong guest-editor.; Cheng Kai guest-editor.
• Is Part Of: Proceedings of the Institution of Mechanical Engineers. Volume 233:Number 12(2019)
• Page Start: 4397
• Page End: 4417
• Publication Date: 2019-06
• Subjects: Crown gear coupling -- load distribution -- tooth contact analysis -- optimum displacement circle radius -- angular misalignment; Mechanical engineering -- Periodicals; 621.05
• DOI: 10.1177/0954406218815516
• Languages: English
• ISSNs: 0954-4062

Abstract

Although crown gear couplings are widely used in rotating machinery, very little is known about their contact behavior and load distribution characteristics. In this study, the manufacturing methods are presented for crown gear coupling. Complete geometrical mathematical models from tools to crown gear coupling are proposed based on the theories of differential geometry and gear mesh. Then, a high-fidelity finite element model verified by tooth contact analysis under light load is employed to investigate load distribution along the crown gear coupling interfaces. The effects of meshing position, torque, and angular misalignment are investigated on load distributions along with crowning amount depending on the displacement circle radius. Finally, it is observed that when the contact position is 0.2 times the width of the tooth, the radius of the displacement circle is the optimal result for the performance of the crown gear coupling.