A Novel Harmonic Drive With Pure Involute Tooth Gear Pair-Reference-Cited by-同舟云学术

A Novel Harmonic Drive With Pure Involute Tooth Gear Pair

Published:2004-01-01 Issue:1 Volume:126 Page:178-182
ISSN:1050-0472
Container-title:Journal of Mechanical Design
language:en
Short-container-title:

Author:

Maiti Rathindranath¹

Affiliation:

1. Department of Mechanical Engineering, Indian Institute of Technology, Kharagpur-721 302, India Phone: ++91 3222, 282938 Fax: ++91 3222 282278/255303,

Abstract

Consider commercially available “harmonic drives” or “strain wave gearings” (all patented designs). The tooth profiles of the mating pairs of teeth of the noncircular (pitch curve) flex gear and circular (pitch circle) ring gears are nearly conjugate and noninvolute. Evidently none of them offers ideal gear kinematics. In this paper, we propose a new wave generator (or cam) to drive flex gears of harmonic drives with fully conjugate gear pairs of purely involute profiles. The cam profile is made of circular arcs at the two diametrically opposite contact zones and shifted elliptical curves for the other two zones. The geometric construction is done in such a way that tip interference is properly avoided for both engagement and disengagement with nominally stubbed or full depth tooth involute gears. We develop the theory of geometric and gearing conditions. We have also built a physical model in order to verify the geometry of tooth interference and other relevant gearing kinematics.

Publisher

ASME International

Subject

Computer Graphics and Computer-Aided Design,Computer Science Applications,Mechanical Engineering,Mechanics of Materials

Link

http://asmedigitalcollection.asme.org/mechanicaldesign/article-pdf/126/1/178/5604208/178_1.pdf

Reference9 articles.

1. Diamond, A. , 1991, “Harmonic Drive Gearing Revisited,” Motion, May/June pp. 11–15.

2. Fisher, A. , 1961, “Some Design Characteristics of the Internal Gear Pairs,” Machinery, 99, Aug. 2, pp. 270–275.

3. Maiti, R., and Roy, A. K., 1996, “Minimum Tooth Difference in Internal-External Involute Gear Pair,” Mech. Mach. Theory, 31(4), pp. 475–484.

4. Kiyosawa, Y., Sasahara, M., and Ishikawa, S., 1989, “Performance of a Strain Wave Gearing using a new Tooth Profile,” Proceedings, ASME International Power Transmission and Gearing Conference, 11, pp. 607–612.

5. Kondo, K., and Takada, J., 1990, “Study on Tooth Profiles of the Harmonic Drive,” ASME J. Mech. Des., 112, pp. 131–137.

Cited by 50 articles. 订阅此论文施引文献订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献

1. A novel harmonic drive with the full conjugate tooth profile;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2024-07-26

2. Kinematic Characteristics Analysis of Gear Teeth in Harmonic Drive;Advances in Mechanism and Machine Science;2023-11-05

3. A Novel Strain Wave Gear Reducer with Double Flexsplines;Actuators;2023-08-01

4. Design study on small transmission ratio harmonic reducer with new profile wave generator;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2023-01-10

5. Modeling of the pure kinematic error for harmonic drive gears with considering multiple meshing teeth;Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science;2023-01-02