Calculation and experiment of spiral bevel gear by duplex helical method predesigned contact path

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  • GENG Longlong
    School of Mechatronic Engineering, Northwestern Polytechnical University
  • DENG Xiaozhong
    Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing, Henan Province
  • DENG Jing
    Collaborative Innovation Center of Machinery Equipment Advanced Manufacturing, Henan Province
  • JIANG Chuang
    School of Mechatronics Engineering, Henan University of Science and Technology
  • HAN Zhengyang
    School of Mechatronic Engineering, Northwestern Polytechnical University

抄録

<p>In this paper a method to calculate machine tool setting parameters for spiral bevel gars by duplex helical method is proposed, in which contact path is predesigned. Firstly, machine setting parameters and curvature parameters in reference points of gear are calculated; secondly, curvature parameters of technology and cut in reference points of pinion are calculated based on meshing theory; then, machine tool setting parameters of pinion are calculated on the basic of the relationship of curvature parameters of technology and cut. Mathematic models of tooth contact analysis and ease-off topology are established to check out the machine tool setting parameters. An example is presented that machine tool setting parameters are calculated based on the method proposed in this paper, which predesign contact paths are 45°, 60°, and 70° respectively. The contact path of TCA results exist errors are less than 0.5% comparing to predesign; the results achieve the design requirement. Finally a cut experiment is carried out which the predesign of contact path is 70°; the results of rolling test are consistent with results of TCA. The correctness and validity of the method is verified.</p>

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