公开(公告)号：US6053062A

公开(公告)日：2000-04-25

申请号：US953235

申请日：1997-10-17

申请人： Hirokazu Ishikawa ,  Takeki Shirai ,  Tadashi Hirokawa

发明人： Hirokazu Ishikawa ,  Takeki Shirai ,  Tadashi Hirokawa

IPC分类号： F16C29/06 ,  F16H25/20 ,  F16H23/22

CPC分类号： F16C29/064 ,  F16H25/20 ,  F16H2025/2075 ,  Y10T74/18648 ,  Y10T74/19902

摘要： A linear motion apparatus comprises a linear track rail having a roller running groove; a feeding threaded shaft rotatably arranged in parallel with the track rail; and a movable block arranged on the track rail through rollers, and provided with a nut portion having a threaded bore into which the feeding threaded shaft is to be screwed. The movable block comprises (i) a block body having a roller running counter-groove which faces on the roller running groove of the track rail and a roller returning passage and (ii) direction changing passage forming members respectively provided on both ends of the block body, each of which members forms a U-shaped direction changing passage connecting the roller running counter-groove and the roller returning passage to each other. The movable block is linearly moved on the track rail through the rollers by rotating the feeding threaded shaft. The nut portion is integrally formed on the direction changing passage forming member, and a position of a center axis of the threaded bore of the nut portion is determined by the direction changing passage forming member on a basis of a position of the roller running counter-groove.

摘要翻译： 直线运动装置包括具有滚轮运行槽的直线轨道轨道; 与轨道轨道平行地可旋转地布置的进给螺纹轴; 以及通过辊布置在轨道轨上的可移动块，并且设置有具有螺纹孔的螺母部分，进给螺纹轴将被拧入该螺母部分。 可移动块包括（i）块体，其具有面向轨道轨道的滚轮延伸槽的辊运行相对槽和辊返回通道，以及分别设置在块的两端的方向改变通道形成构件 每个构件形成将滚子运行的相对槽和滚子返回通道相互连接的U形方向转换通道。 通过旋转进给螺纹轴，可移动块通过滚子在轨道轨道上线性移动。 螺母部分一体地形成在方向转换通道形成构件上，并且螺母部分的螺纹孔的中心轴线的位置由方向转换通道形成构件基于辊运行反向通道形成构件的位置确定， 槽。