Tooth contact analysis of x-zero helical gears by the modification of the tooth trace

Bodzás, Sándor (2019) Tooth contact analysis of x-zero helical gears by the modification of the tooth trace. INTERNATIONAL JOURNAL OF AUTOMOTIVE SCIENCE AND TECHNOLOGY, 3 (4). pp. 77-83. ISSN 2587-0963

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Abstract

The helical gear pairs are widely used in different mechanical constructs. The main advantage is the good efficiency and the low noise during the connection. We have worked out a computer software with which the designing process of the helical gears could be eased. Based on the calculated gear parameters the CAD models of the elements could be prepared. Knowing of the geometries the assem-bly could be created based on the fixed freedom degrees and the elementary centre distance. We have designed five types of gear pairs. The differences are only the different tooth traces. All of other parameters have not been modified. The aim of this research is the function between the tool trace and the mechan-ical parameters. Using of the TCA the mechanical parameters of the connecting elements on the contact zone could be analyses by different loads. We have done this analysis which means we have analyzed the effect of the modified parameter for the normal stress, normal deformation and the normal elastic strain on the contact zone. Based on the results we have prepared diagrams for the analysis of the correlations between the changing parameters. Before the real production the TCA is suggested because of the determination of the estimated mechanical parameters. If these parameters would not give re-quired results it could be possible to return to the geometric designing process and modify the geometric parameters.

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