0
Applications

Effects of Eccentricity on Transmission Errors of Trochoidal Gears

[+] Author and Article Information
Hiroyuki Ohta

Department of Mechanical Engineering,  Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japanohta@mech.nagaokaut.ac.jp

Ayumu Yamakawa

Department of Mechanical Engineering,  Graduate School, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata, 940-2188, Japan

Yoshitake Katayama

 Engineering Department, Kamo Seiko Corporation, 1166 Kamewari, Matsuki, Toyota, Aichi, 470-0424, Japan

J. Tribol 134(1), 011102 (Mar 06, 2012) (7 pages) doi:10.1115/1.4005645 History: Received May 10, 2011; Revised December 19, 2011; Published March 05, 2012; Online March 06, 2012

This article deals with the effects of eccentricity on transmission errors of trochoidal gears (consisting of a roller gear and cam gear). For the tests, three types of roller gears and three types of cam gears (which had different eccentricity) were used. The experimental results showed that the peak to peak values of transmission errors had a tendency to be greater under a larger eccentricity. The measured transmission error waveforms fluctuated with periods 1/fr , 1/fc and 1/zr fr (in which fr and fc are the rotational frequencies of the roller gears and cam gears, while zr is the number of rollers). The peaks with nfr (n = 1, 2, 3, …), nfc , nzr fr , nzr fr  ± mfr (m = 1, 2, 3, …) and nzr fr  ± mfc appeared in the measured transmission error spectra. The amplitudes of peaks with fr and nzr fr  ± mfr increased as er increased, while the amplitudes of peaks with fc and nzr fr  ± mfc increased as ec increased. The transmission errors of test gears with eccentricity were estimated by the multibody analysis (MBA). A reasonable correlation exits between the calculated results obtained by the MBA and the measured experimental results.

FIGURES IN THIS ARTICLE
<>
Copyright © 2012 by American Society of Mechanical Engineers
Topics: Gears , Errors , Rollers
Your Session has timed out. Please sign back in to continue.

References

Figures

Grahic Jump Location
Figure 2

Amplitude and phase of eccentricity

Grahic Jump Location
Figure 4

Initial positions of geometric and rotation centers

Grahic Jump Location
Figure 5

Measured transmission error waveforms

Grahic Jump Location
Figure 6

TEp-p versus total eccentricity

Grahic Jump Location
Figure 7

Measured transmission error spectra

Grahic Jump Location
Figure 9

Friction characteristics in revolute joint of rollers

Grahic Jump Location
Figure 10

Friction characteristics between rollers and cam gear

Grahic Jump Location
Figure 11

Calculated transmission error waveform and spectrum of non-eccentric gears

Grahic Jump Location
Figure 12

Calculated transmission error waveforms of eccentric gears (test gears)

Grahic Jump Location
Figure 13

Calculated transmission error spectra of eccentric gears (test gears)

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In