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根据不同的使用性能要求,按给定油缸初始位置的尺度和2个极限位置进行了油缸直推式举升机构的尺寸设计,即初始位置油缸作用力臂最大的机构、上下限位置传动角相等的机构和油缸推力波动最小的机构。建立举升机构的运动学和动力学数学模型,并在油缸推进力为常数时分别对这3种机构的输出特性进行了分析和比较,从而验证了这种设计方法的正确性和可行性。
According to different performance requirements, according to the initial position of a given cylinder scale and two extreme positions of the cylinder thrust push the size of the lifting mechanism design, the initial position of the cylinder arm force largest institutions, the upper and lower limit position transmission angle equal The mechanism and cylinder thrust fluctuations in the smallest institutions. The mathematical model of kinematics and dynamics of the lifting mechanism is established, and the output characteristics of the three mechanisms are analyzed and compared respectively when the propulsion force of the cylinder is constant. The results show that the design method is correct and feasible.