摘要
对于行星传动,常采用变位齿轮配凑所需的中心距,若变位系数选择不合适,反而有可能会降低齿轮承载能力。因此,研究变位系数分配问题,已成为设计变位齿轮的关键。目前,变位系数的选取大都采用封闭图法来解决,工作量很大,并且大量的封闭图不适合计算机来处理。从减小齿面滑动磨损、降低胶合和减少点蚀方面,即力求啮合两齿面的相对滑动趋于均衡的角度,同时考虑行星减速机齿轮的中心距约束条件,将啮合齿轮变位系数选取方法抽象为求解一个多约束非线性单目标数学优化问题,利用优化设计思想实现了变位系数的计算机取值。
People used the modification gear to get the required center distance,but if the modification coefficient was not suitable,it would reduce gear strength instead.People used the＂blocking contour＂chart to selecte modification coefficient,but its workload was too much and it was difficult to use the computer,at present.It aimed at abstracting selection of the modification coefficient of involute cylindrical spur gears to solve the mathmatical optimization question,under the center distance constraint condition,in order to reduce gear slipping wear、pitting、scuffing and make the two maximal sliding ratios equal.This method utilizes optimization design to realize selecting modification coefficient by computer.
出处
《机械设计与制造》
北大核心
2013年第1期130-133,共4页
Machinery Design & Manufacture
关键词
行星减速机
变位系数
最大滑动率
中心距
优化设计
Planetary Reducer
Modification Coefficient
Sliding Ratio
Center Distance
Optimization Design
