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    • 3. 发明申请
    • Telescopically moving structure
    • 望远镜移动结构
    • US20040211275A1
    • 2004-10-28
    • US10296151
    • 2004-03-31
    • Preben Bo FichChristian Noergaard
    • F16H025/20
    • F16H25/20A47B9/04F16B7/1436F16H25/2056Y10T74/18576Y10T74/18672
    • A telescopically moving structure (1) comprising a nut (2) mounted in a rotationally fixed manner in relation to a frame part, a spindle tube (3) with an external thread in engagement with the nut (2), which spindle tube (3) furthermore has an internal thread (4) with the opposite direction to that of the external thread, which internal thread (4) is in engagement with a non-rotational spindle (5) provided with an external thread, the spindle tube (3) being connected in a rotationally fixed manner, but in the axial direction in a slidable manner to a driving shaft (6), wherein the driving shaft (6) has an essentially polygonal cross section with a perimeter forming two opposite longitudinal tracks for engagement with torque-transferring rolling bodies which are journalled in a bushing fastened in the spindle tube (3) to thereby enable transfer of a large torque without the risk of seizure between the driving shaft (6) and the spindle tube (3).
    • 一种伸缩移动结构(1),包括相对于框架部分以旋转固定的方式安装的螺母(2),具有与所述螺母(2)接合的外螺纹的主轴管(3),所述主轴管 )还具有与外螺纹相反方向的内螺纹(4),所述内螺纹(4)与设置有外螺纹的非旋转主轴(5)接合,所述主轴管(3) 以可旋转地固定的方式连接,但是在轴向方向上以可滑动的方式连接到驱动轴(6),其中驱动轴(6)具有基本上多边形的横截面,周边形成两个相对的纵向轨道,用于与扭矩 将滚动体保持在紧固在主轴管(3)中的衬套中,从而能够传递大的转矩而不会在驱动轴(6)和主轴管(3)之间发生卡死的危险。