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IJAT Vol.5 No.2 pp. 132-137
doi: 10.20965/ijat.2011.p0132
(2011)

Paper:

Evaluation of Pitch Deviations with Comprehensive Representation Suitable for Engagement Evaluation in Different Types of Gears

Syuhei Kurokawa, Yasutsune Ariura, and Toshiro Doi

Faculty of Engineering, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan

Received:
December 2, 2010
Accepted:
December 22, 2010
Published:
March 5, 2011
Keywords:
gear metrology, pitch deviation, comprehensive representation, engagement evaluation
Abstract

Gear tooth flank deviations should be characterized to evaluate individual gear accuracy directly linked to gear performance during engagement. The comprehensive pitch deviation representation we propose is calculated using multiple tooth flank surface deviations as 0-order form deviations. In this representation, pitch error is expressed by angle unit, not by length unit, and calculated from measured conventional deviation (profiles and leads) withoutmeasuring pitch deviation. For spur and helical gears, pitch deviation is expressed by a single length unit and also by a single angle unit. On the other hand, for bevel gear flank, pitch deviation expressed by length unit consists of many different values even on a single flank. Using the angle unit expression, form deviation is described exactly by a single parameter. The comprehensive representation we propose overcomes the disadvantages of conventional pitch deviation evaluation, going right to the point of gear engagement evaluation.

Cite this article as:
S. Kurokawa, Y. Ariura, and T. Doi, “Evaluation of Pitch Deviations with Comprehensive Representation Suitable for Engagement Evaluation in Different Types of Gears,” Int. J. Automation Technol., Vol.5, No.2, pp. 132-137, 2011.
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References
  1. [1] ISO, “Cylindrical gears – ISO system of accuracy – Part 1: Definitions and allowable values of deviations relevant to corresponding flanks of gear teeth,” ISO-1328-1, 1995.
  2. [2] ISO, “Cylindrical gears – Code of inspection practice – Part 1: Inspection of corresponding flanks of gear teeth,” ISO/TR-10064-1, 1992.
  3. [3] G. Goch, “Gear Metrology,” Annals of the CIRP, Vol.52, No.2, pp. 1-37, 2003.
  4. [4] T. Pfeifer, S. Kurokawa, and S. Meyer, “Derivation of parameters of global form deviations for 3-dimensional surfaces in actual manufacturing processes,” Measurement, Vol.29, pp. 179-200, 2001.
  5. [5] M.Weck, O. Guzman, and P.W. Gold, “Measuring the flank geometry of bevel gears on a multiple-coordinate measuring machine,” Precision Engineering, Vol.2, Issue 2, pp. 85-88, 1980.

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Last updated on Nov. 08, 2019