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  首页《机械工程学报(英文版)》2008年3期目录ANALYSIS OF TRANSMISSION CHARACTERISTICS OF COSINE GEAR DRIVE

WANG Jian

LUO Shanming

CHEN Lifeng

CHEN Lei

HU Huarong
School of Electromechanical Engineering,
Hunan University of Science
and Technology,
Xiangtan 411201, China

 

 

ANALYSIS OF TRANSMISSION CHARACTERISTICS OF COSINE GEAR DRIVE*

 

Abstract: Based on the mathematical model of a novel cosine gear drive, a few characteristics, such as the contact ratio, the sliding coefficient, and the contact and bending stresses, of this drive are analyzed. A comparison study of these characteristics with the involute gear drive is also carried out. The influences of design parameters including the number of teeth and the pressure angle on the contact and bending stresses are studied. The following conclusions are achieved: the contact ratio of the cosine gear drive is about 1.2 to 1.3, which is reduced by about 20% in comparison with that of the involute gear drive. The sliding coefficient of the cosine gear drive is smaller than that of the involute gear drive. The contact and bending stresses of the cosine gear drive are lower than those of the involute gear drive. The contact and bending stresses decrease with the growth of the number of teeth and the pressure angle.

Key words: Gear drive Cosine profile Contact ratio Sliding coefficient Stress

 


* This project is supported by National Natural Science Foundation of China (No. 50575071), Natural Science Foundation of Hunan Province, China (No. 06JJ10008), S&T Programs of Hunan Province, China (No. 2007FJ4047), and Program for New Century Excellent Talents in University, China. Received June 20, 2007; received in revised from March 19, 2008; accepted April 10, 2008

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Biographical notes


WANG Jian is currently a teacher in Hunan University of Science and Technology, China. His research interests include mechanical transmission.
Tel: +86-13467915575; E-mail: wangjian4211@yahoo.com.cn

LUO Shanming is currently a professor in Hunan University of Science and Technology, China. His research interests include mechanical design and theory, CAD/CAE/CAM.
E-mail: s.luo@hotmail.com

CHEN Lifeng is currently a teacher in Hunan University of Science and Technology, and a PhD candidate in Chongqing University, China. His research interests include mechanical design and theory, CAD/CAE/CAM.
E-mail: lfchen@hnust.edu.cn

CHEN Lei is currently a graduate student in Hunan University of Science and Technology, China. His research interests include mechanical transmission.
E-mail: chenlei0371@yahoo.com.cn

HU Huarong is currently a graduate student in Hunan University of Science and Technology, China. His research interests include mechanical transmission.
E-mail: huhuarong1977@126.com


References


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