More efficient machining of globoid worm gears

Sutyagin, A. V.; Mal’ko, L. S.; Трифанов, И В

doi:10.3103/s1068798x1508016x

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“…Double enveloping worm drives have been the subject of research by numerous scientists. The research on mathematical modeling and analyses of the gears [7,8], the introduction of modifications [9,10], surface analyses [11,12], the development of new types of globoid worm gears [13,14], and manufacturing methods [15,16] are still ongoing. Chen and Tsay [7] studied the hourglass worm gear composed of a ZN-type hourglass worm generated by straight-edged blade cutters and a worm wheel generated by worm-type hourglass hob cutters.…”

Section: Introductionmentioning

confidence: 99%

Determination of contact pattern for double enveloping worm gear

Połowniak

Sobolak

Marciniec

2020

Advances in Manufacturing Science and Technology

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The paper presents the method of determining geometric contact pattern by using the direct computer-aided design (CAD) method for ideal globoid worm gear in which mounting deviations are considered. The tooth contact analysis was performed for all cycle of worm rotation. Based on the results of temporary contact pattern, graphical characteristics of the contact area size depending on worm position were made. A complete analysis of the correctness of gear meshing can be obtained based on presented method. If the worm or worm wheel is incorrectly designed in terms of the geometry, the meshing simulation of CAD models can indicate the collision. Geometric contact pattern analyses were made at two pressure angles of ideal gear. The analysis of the influence of mounting deviations was done against one selected pressure angle and one gear position.

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