关于曲柄滑块机构连杆运动瞬心线特征的研究  

Research on Characteristics of Centrode of Link Motion of Crank-Slider Mechanism

作　　者：谭维奇[1] 谢鸿满[1] 

机构地区：[1]安庆职业技术学院公共基础部,安徽安庆246003

出　　处：《安徽理工大学学报（自然科学版）》2012年第3期63-66,共4页Journal of Anhui University of Science and Technology:Natural Science

摘　　要：绘出了平面曲柄滑块机构连杆运动的定瞬心线,用图解法给出了瞬心线的轨迹的参数方程,并分多种情况进行了讨论。用数学方法证明了当曲柄AB和连杆BC相等时,对心曲柄滑块机构(偏距e=0)连杆BC运动的定瞬心线π4和动瞬心线π2均为圆,其替代机构——内啮合圆柱齿轮传动机构中,与内齿轮啮合的外齿轮上各点的运动轨迹分别为直线运动、圆运动、椭圆运动和内摆线运动。研究这些点的运动学特征,将会大大拓宽机构运动设计的思路和范围。The fixed centrode of link motion of crank-slider mechanism was presented in the paper.The parameter equation of centrode track was given by graphical method and discussed at different situations.By mathematical method it was proved,that when the crank AB is equal to the connecting rod BC,the fixed link motion centrode π4 and the variable centrode π2 are both round(if offset e=0),and in its substitute,the internal spur gear transmission mechanism,trajectories of points on the external gear meshing with the internal gear is linear motion,circular motion,elliptical motion,and hypocycloidal motion,respectively.The research on the kinematics characteristics of the points will broaden mind and scope of mechanism motion designing.

关 键 词：曲柄滑块机构 瞬心线 齿轮传动 

分 类 号：TH122[机械工程—机械设计及理论]