缺点是价格相对较高，需要润滑和维护, 在选择滚珠丝杠时，需要根据具体应用的需求来选择适当的单牙口或双牙口螺纹接口,CT系列滚珠丝杠是一种高精度、高刚性的传动装置，由滚珠、丝杠和导轨组成，可以将旋转运动转换为线性运动,三门峡微型滚珠丝杠具有精度高、承载能力强、寿命长、运动平稳等优点，已成为现代工业生产中不可或缺的重要组成部分, 滚珠丝杠杂化的结构是在丝杠表面镶嵌滚珠，通过滚珠与螺纹的配合来实现传动，从而提高传动效率和精度, 滚珠丝杠轴向定位法的优点是定位精度高、稳定性好、可靠性高,使用扳手等工具，对螺母进行额外的旋转，以确保其牢固地固定在滚珠丝杠上, 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,需要购买与原来相同尺寸和材质的滚珠，再进行更换,THK是一家日本公司，专门生产各种精密滚珠丝杠及导轨产品