　　One end of the screw is fixed and the other end is free. The fixed end bearing bears axial force and radial force. This type of support is used for small stroke short lead screws.

　　(2)双推一撑

　　（2） Double push and one support

　　丝杠一端固定，另一端支撑。固定端轴承承受轴向力和径向力。支承端轴承仅能承受径向力，并能使跟踪轴向浮动，能避免或减少因自重和弯曲而产生的丝杠。同时，THK滚珠丝杆热变形可自由延伸一端。

　　One end of the lead screw is fixed and the other end is supported. The fixed end bearing bears axial force and radial force. The bearing at the supporting end can only bear radial force and make the tracking axial floating, which can avoid or reduce the lead screw caused by self weight and bending. At the same time, THK ball screw thermal deformation can be freely extended to one end.

　　(3)双推，双推

　　(3) Double push

　　螺丝端固定。固定端轴承能同时承受轴向力和径向力。该支护方法可在THK滚珠丝杠上施加适当的预紧力，提高丝杠的支护刚度，部分补偿丝杠的热变形。

　　Fix the screw end. Fixed end bearing can bear axial force and radial force at the same time. The support method can apply appropriate preload on THK ball screw, improve the support stiffness of the screw, and partially compensate the thermal deformation of the screw.

　　(4)采用螺钉固定和螺母旋转驱动方式

　　(4) Screw fixation and nut rotation drive

　　此时,螺母旋转,一边移动一边沿着固定导螺杆轴向:因为导螺杆不动,它可以避免临界速度的限制,避免各种各样的问题,当细长THK滚珠螺杆高速运行。螺母惯性小，运动灵活，转速高。这样可以对丝杠施加预紧力，提高丝杠的支撑刚度，补偿丝杠的热变形。

　　At this time, the nut rotates and moves along the axis of the fixed guide screw: because the guide screw does not move, it can avoid the limitation of critical speed and various problems. When the slender THK ball screw runs at high speed. The nut has small inertia, flexible movement and high rotation speed. In this way, the preload can be applied to the lead screw to improve the support stiffness of the lead screw and compensate the thermal deformation of the lead screw.

　　以上是导轨丝杠制造商为大家介绍的相关内容，想要了解更多内容，欢迎访问网站：http://tianboo.net

　　These are the related contents introduced by the guide screw manufacturer. If you want to know more, please visit the website: http://tianboo.net

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