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首页> 外文期刊>Journal of the Chinese Society of Mechanical Engineers, Series C: Transactions of the Chinese Society of Mechanical Engineers >Calculation of Tooth Surface Contact Stress and Tooth Root Bending Stress of the Asymmetric Gear with Double Pressure Angles Meshing Beyond the Pitch Point Based on Friction Between Teeth
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Calculation of Tooth Surface Contact Stress and Tooth Root Bending Stress of the Asymmetric Gear with Double Pressure Angles Meshing Beyond the Pitch Point Based on Friction Between Teeth

机译：基于牙齿摩擦的双压角线啮合的双压角度啮合的齿面接触应力和齿根弯曲应力的计算

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摘要

Advantages of asymmetric gear include larger load carrying capacity, smaller vibration and longer life. The vibration of the gear system due to the change of the direction of the friction force can be avoided when meshing beyond the pitch point happens. But the meshing mechanism of asymmetric gear with double pressure angles meshing beyond the pitch point is not yet known. In this paper, the basic theory of the asymmetric gear driving system meshing beyond the pitch point is developed. Through analyzing the forces exerted on the driving gear of reducing-speed asymmetric spur gear drive system meshing beyond the pitch point in single & double pairs teeth meshing range, the contact stress and bending stress on the pinion under the action of the sliding friction between teeth are derived. It will be seen that the contact stress and bending stress of asymmetric gear drive system meshing behind the pitch point are lower than those of the symmetric gear drive system meshing behind the pitch point, under equal conditions. And the contact stress can be effectively reduced by tuning the pressure angle of driving side, modification coefficient on pinion, the modulus and the addendum coefficient on the coast side.
机译：不对称齿轮的优点包括较大的负载承载能力，较小的振动和较长的寿命。当啮合超过俯仰点时，可以避免由于摩擦力方向的变化而导致的齿轮系统的振动。但是，不对称齿轮的啮合机构与双压角线啮合超过俯仰点尚不清楚。在本文中，开发了超越俯仰点的非对称齿轮驱动系统的基本理论。通过分析施加在减速速度不对称正齿轮驱动系统的驱动齿轮上的力超出单双对齿啮合范围的俯仰点，在齿之间的滑动摩擦的作用下的触头上的接触应力和弯曲应力派生。可以看出，在俯仰点的后面啮合的不对称齿轮驱动系统的接触应力和弯曲应力低于俯仰点的对称齿轮驱动系统的啮合，在等于条件下。通过调节驱动侧的压力角，小齿轮上的改性系数，水模量和海岸侧的附加系数，可以有效地减少接触应力。

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