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摘要： 本文研究了滚珠丝杠的摩擦特性。首先介绍了滚珠丝杠的基本结构和工作原理，然后根据滚珠丝杠的力学模型，推导了滚珠丝杠的静摩擦力和动摩擦力公式，并分析了影响滚珠丝杠摩擦特性的因素。最后，通过实验验证了理论分析结果，得出了滚珠丝杠的摩擦系数和摩擦力与转速和载荷的关系，为滚珠丝杠的设计和应用提供了理论基础。 关键词：滚珠丝杠；摩擦特性；摩擦系数；摩擦力；力学模型 Abstract: This paper studies the friction characteristics of ball screws. Firstly, the basic structure and working principle of ball screws are introduced. Then, according to the mechanical model of ball screws, the formulas of static friction force and dynamic friction force of ball screws are derived, and the factors affecting the friction characteristics of ball screws are analyzed. Finally, the theoretical analysis results are verified by experiments, and the friction coefficient and friction force of ball screws are obtained with the relationship between speed and load, which provides a theoretical basis for the design and application of ball screws. Keywords: ball screw; friction characteristics; friction coefficient; friction force; mechanical model