Head-cutter for optimal tooth modifications in spiral bevel gears |
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| Authors: | Vilmos Simon |
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| Affiliation: | 1. School of Mechanical Engineering, Chongqing University of Technology, 400054, China;2. Department of Mechanical and Aerospace Engineering, University of Texas at Arlington, 76019, USA;1. Department of Mechanical, Energy and Management Engineering, University of Calabria, Ponte P. Bucci Cubo 46C, Arcavacata di Rende 87036, CS, Italy;2. Siemens Industry Software NV, Interleuvenlaan 68, B-3001 Leuven, Belgium;3. Department of Mechanical Engineering, KU Leuven, Celestijnenlaan 300B, Leuven B-3001, Belgium;4. DMMS Core Lab, Flanders Make, Belgium |
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| Abstract: | A method for the determination of optimal tooth modifications in spiral bevel gears based on improved load distribution and reduced maximum tooth contact pressure and transmission errors is presented. The modifications are introduced into the pinion tooth-surface by using a head-cutter with bicircular profile and with optimal diameter. In the optimization of tool parameters the influence of relative position errors of the mating gears is included.By using the computer program developed for load distribution calculation, the influence of head-cutter parameters and relative position errors of the mating gears on tooth contact and transmission errors is investigated. Based on the results obtained, the radii and the position of the circular tool profile arcs and the cutter diameter for pinion teeth finishing were optimized. By applying the optimal tool parameters, the maximum tooth contact pressure is reduced by 45% and the maximum angular position error of the driven gear by 60%, in regard to the spiral bevel gear pair with a pinion manufactured by a cutter of straight-sided profile and of diameter determined by the commonly used methods. |
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