Experimental Evaluation on the Friction Characteristics of Linear Ball Guides
Experimental Evaluation on the Friction Characteristics of Linear Ball Guides
复制标题
直线滚珠导轨摩擦特性的实验评估
DOI：
10.1299/kikaic.73.2811
复制
发表时间：
2007
期刊：
影响因子：
--
通讯作者：
Daisuke Imaki
中科院分区：
文献类型：
--
作者：
R. Sato;M. Tsutsumi;Daisuke Imaki
本文研究了滚珠直线导轨副的摩擦特性。线性滚珠导轨通常用于引导进给驱动系统的线性运动。在这项研究中，摩擦特性的直线滚珠导轨是通过使用一个无芯直线电机测量。作为数学分析的结果，它已被证实，导轨的摩擦力可以作为推力命令在实验系统中测量。对三种尺寸的导轨、三种类型的润滑脂、三种类型的预紧力以及有无保持架进行了测量试验。首先讨论了速度与摩擦力的关系。结果表明，速度与摩擦力的关系取决于润滑脂的粘度和滚珠的直径。还测量了微区的非线性弹簧特性。作为测量结果，可以说非线性弹簧特性取决于球的尺寸、预载荷和保持器。非线性弹簧特性的差异对阶跃响应的振动阻尼有影响。
This paper investigates friction characteristics of the linear ball guides. Linear ball guides are generally used for guiding linear motions of feed drive systems. In this study, friction characteristics of the linear ball guides are measured by using a core-less linear motor. As a result of the mathematical analysis, it have been confirmed that the friction force of the guides can be measured as a thrust force command in the experimental system. Measurement tests were carried out for three sizes of guides, three types of greases, three types of pre-load, and with or without of retainer. Firstly, relationships between velocity and friction force are discussed. As the results, it is clarified that the relationship between velocity and friction force depends on the grease viscosity, and the diameter of rolling ball. Non-linear spring characteristics in microscopic region are also measured. As the results of the measurement, it can be said that the non-linear spring characteristics depend on the size of the ball, pre-load, and retainer. The differences of the non-linear spring characteristics have influence on the vibration dumping of step responses.