Abstract
With the rapid development of processing technology, the demand for precision, durability and NVH performance of processing machinery has also increased. This paper presents an optimally designed gear train composed of a set each of spiral bevel gears and spur gears to serve as a high precision rotating unit for processing machinery. The safety of each component used in the rotating unit gear train was verified using the geometry method and empirical formulae. The load contact pattern and PPTE value, which is an important indicator of the gear whine characteristic, were optimized using micro geometry modifications. In addition, the transfer efficiency of the entire gear train was determined and a novel dynamic analysis based on the comparison of the dynamic transmission error and the modal flexibility was performed to verify the correctness of the geometry design.
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