摘要
短幅系数是影响摆线钢球行星传动的重要参数,它的选取直接影响传动性能。围绕短幅系数选取这一关键问题进行研究。首先考虑摆线钢球行星传动的综合力学性能,设定短幅系数上、下限的取值范围。其次基于啮合副受力分析、转臂轴承的受力分析及几何约束条件,以转臂轴承可靠性为原则确定短幅系数下限的计算方法。然后考虑啮合副顶切磨合和承载变化的实际工况,以摆线钢球啮合副的强度为基础,确定短幅系数上限的计算方法。最后给出短幅系数的取值区间,并通过设计实例验证。
Curtate ratio is important parameters of cycloid ball planetary transmission,its selection directly affects the transmission performance. According to its importance, the selection of curtate ra- tio is researched. Firstly, considering the comprehensive mechanical properties of the cycloid ball plan- etary transmission, and setting the range of curtate ratio. Secondly, based on the stress analysis of the meshing pairs, and the stress analysis and geometric constraints of turning arm bearing, with the relia- bility of turning arm bearing for the principle the method of compute the lower limit of curtate ratio is determined. Then considering the actual conditions of load fluctuation and top cutting running--in of the meshing pair, and taking the strength of meshing pairs of cycloid ball as the foundation, the meth- od to compute the upper limit of curtate ratio is determined. Finally, the range of curtate ratio is giv- en, and the conclusion is verified by the design examples.
出处
《机械传动》
CSCD
北大核心
2014年第3期27-30,共4页
Journal of Mechanical Transmission
关键词
短幅系数
摆线钢球
行星传动
转臂轴承
顶切
Curtate ratio Cycloid steel ball Planetary transmission Turning arm bearingTop cutting
