如果需要增加预紧力，可以将弹簧拉紧；如果需要减小预紧力，可以将弹簧放松, 4. 伺服电机控制：通过控制伺服电机的位置来控制滚珠丝杠的行程,行星齿轮与滚珠丝杠分别嵌入在外壳和输出轴中，形成一个差速机构, 以上三种力都会对滚珠丝杠的运动产生影响，因此在设计和选择滚珠丝杠时需要考虑这些因素,以下是一篇关于滚珠丝杠的外文文献： Title: Ball screw drives: Their performance, modeling, and control – A review Authors: Adel A. El-Sharkawy, Mohamed H. Elbestawi Journal: Mechanism and Machine Theory Year: 2003 Abstract: Ball screw drives are widely used in many applications due to their high efficiency, low friction, and high accuracy. This paper provides a comprehensive review of the performance, modeling, and control of ball screw drives. The performance analysis includes the kinematic and dynamic behavior of ball screw drives, as well as the influence of various design parameters on their performance. The modeling section discusses the development of mathematical models for ball screw drives, including both analytical and numerical approaches. The control section presents various control strategies that have been used to improve the performance of ball screw drives, such as position control, velocity control, and force control. The review concludes by discussing some of the current challenges and future research directions in the field of ball screw drives. Keywords: ball screw drives, performance analysis, modeling, control., 3. 检查滚珠丝杠的滚珠是否正常运转,其精度与滚珠丝杠的制造精度、装配精度、使用环境等因素有关, 3. 负载能力强：滚珠丝杠模组采用滚珠传动，能够承受较大的负载，适用于重载、高速、高精度的线性运动控制系统,同时，需要注意安装和维护，以确保升降装置的稳定性和安全性,通常使用的工具包括螺丝刀、扳手和调节器