径向柱塞式液压马达等接触应力内曲线的精确绘制  

Accurate Drawing of Equal Contact Stress Inner Curve for Radial-piston Hydraulic Motor

作　　者：黄菲[1] 黄方平[1] 沈萌红[1] 

机构地区：[1]浙江大学宁波理工学院,浙江宁波315100

出　　处：《机床与液压》2013年第19期148-150,共3页Machine Tool & Hydraulics

基　　金：宁波市工业攻关资助项目(2010B10002)

摘　　要：针对传统的图解法绘制等接触应力曲线存在作图精度低的缺点,对多作用径向柱塞式液压马达等接触内曲线进行理论分析,得到其微分方程,运用MATLAB求出等接触内曲线的数值解并采用拟合方法得到近似解析解,然后在Pro/E等CAD软件中精确绘制出完整的曲线。绘制出的曲线可以直接用于数控曲线磨床进行内曲线液压马达导轨的加工和生产。In accordance with the feature of traditional graphic method, drawing of equal contact stress inner curve is always inaccu- rate. Through analyzing equal contact stress inner curve of multi-stroke radial-piston hydraulic motor, its differential equation was estab- lished. The numerical solution and its approximate analytic solution of differential equation were obtained by using the mathematic software MATLAB, the whole inner curve could be drawn accurately with Pro/E or other CAD software for manufacture.

关 键 词：径向柱塞马达 内曲线 等接触应力 

分 类 号：TH137[机械工程—机械制造及自动化]