5. 前后端支撑方式：滚珠丝杠的前后端支撑方式一般分为固定端支撑、浮动端支撑等不同的方式, 3. 转速：根据工作需求和材料特性确定, 2. 拆卸数控车床的床身外壳，以便于进一步操作,与传统的滑动副相比，滚珠丝杠副可以承受更高的负载和转速，同时也具有更长的使用寿命,滚珠轴承丝杠的牙型一般有三种：三角形牙型、矩形牙型和梯形牙型, 关键词：滚珠丝杠；升降机；传动效率；负载能力；动态响应 Abstract: This paper mainly introduces the structure and working principle of the ball screw lifting mechanism, and analyzes and evaluates its performance. Firstly, the basic principle and classification of the lifting machine are introduced, and then the structure and working principle of the ball screw lifting mechanism are introduced in detail, including the ball screw, guide rail, motor and other components. Then, the performance of the ball screw lifting mechanism is analyzed and evaluated, mainly including transmission efficiency, load capacity, dynamic response and other aspects. Finally, the advantages and disadvantages of the ball screw lifting mechanism are discussed, and some improvement measures and application prospects are put forward. Keywords: ball screw; lifting machine; transmission efficiency; load capacity; dynamic response,东莞滚珠丝杠的转矩计算公式为： 转矩 = 力矩 / 导程系数 其中，力矩为施加在滚珠丝杠上的力的大小乘以力臂的长度，即： 力矩 = F × L F为施加在滚珠丝杠上的力的大小，单位为牛顿（N）；L为力臂的长度，即施加力的作用点距离滚珠丝杠轴心的距离，单位为米（m）,P1型滚珠丝杠的精度等级一般为C0-C5,同时，在机器运行过程中也需要注意观察滚珠丝杠的运动状态，及时发现问题并进行处理, 3. 滚珠螺母丝杠的使用寿命长，不易磨损，能够承受较大的负载和冲击力