KUGELGEWINDETRIEB
    4.
    发明公开

    公开(公告)号:EP1776535A1

    公开(公告)日:2007-04-25

    申请号:EP05769665.0

    申请日:2005-08-02

    申请人: Schaeffler KG

    IPC分类号: F16H25/22 B62D5/04 F16H25/24

    摘要: The invention relates to a ball screw (1) comprising a ball caster spindle (3) and a driven spindle nut (2) arranged thereon. Balls (7) are arranged in a continuously rotatable manner in at least one endless ball channel (8), said ball channel (8) comprising a load section (9) which is wound around the ball caster spindle (3) and defined by ball tracks (10, 11) of the ball caster spindle (3) and the spindle nut (2), and a load-free recycling section (12) which continuously connects the beginning and end thereof. A regreasing device (15) which is arranged on the spindle nut (2) in a rotationally fixed manner supplies lubricant to the ball channel (8) using centrifugal force.

    摘要翻译: 本发明涉及一种包括设置在其上的球形主轴(3)和从动主轴螺母(2)的滚珠丝杠(1)。 在至少一个无端球通道(8)中,球(7)以可连续旋转的方式布置,所述球通道(8)包括负载部分(9),所述负载部分围绕球脚轴(3)缠绕并且由球 滚珠丝杆轴3和丝杠螺母2的轨道10,11以及连续地连接其始端和终端的无载循环部分12。 以旋转固定的方式布置在心轴螺母(2)上的再润滑装置(15)利用离心力向滚珠通道(8)供应润滑剂。

    SPINDELMUTTER FÜR EINEN KUGELGEWINDETRIEB
    6.
    发明授权
    SPINDELMUTTER FÜR EINEN KUGELGEWINDETRIEB 有权
    阀杆螺母FOR A滚珠丝杆传动

    公开(公告)号:EP1749158B1

    公开(公告)日:2009-08-26

    申请号:EP05752562.8

    申请日:2005-05-14

    申请人: Schaeffler KG

    IPC分类号: F16H25/22

    摘要: The invention relates to a spindle nut for a ball screw, comprising a continuous ball track (1) for balls (2), a ball groove (3, 14) for the balls (2), extending on the inner periphery of the spindle nut about the rotational axis thereof and along a helical line, said ball groove extending across at least one thread (4), and a diversion device (5). In the diverting channel (9) thereof, balls (2) are diverting from one end of a thread (4) to a beginning of a thread (4). The spindle nut is provided with ball inlets (13, 16) connected on one end to the ball groove (3, 14) and on the other end to the diverting channel (9). The ball groove (3, 14) and the ball inlet (13, 16) have identical cross-sectional profiles.

    VERFAHREN ZUM HERSTELLEN EINER SPINDELMUTTER EINES KUGELGEWINDETRIEBES UND WERKZEUGDORN HIERFÜR
    8.
    发明授权
    VERFAHREN ZUM HERSTELLEN EINER SPINDELMUTTER EINES KUGELGEWINDETRIEBES UND WERKZEUGDORN HIERFÜR 有权
    用于生产滚珠丝杠刀具的刀柄螺母,目的荆棘

    公开(公告)号:EP1526933B1

    公开(公告)日:2008-04-02

    申请号:EP03750402.4

    申请日:2003-07-29

    申请人: Schaeffler KG

    IPC分类号: B21K1/56 F16H25/22

    摘要: Disclosed is a method for the production of a spindle nut (3) of a spherical thread drive mechanism. The inner circumference of said spindle nut (3) comprises at least one screw-shaped track (4) which is formed thereupon as a single piece and the threads (38) of which are separated by means of shoulders (6). Said shoulder (6) is interrupted at least at one peripheral position by a deflecting recess (23) in order to redirect balls (13) from one thread into an adjacent thread (38). The inventive method comprises the following steps: a tool arbor (56), the outer circumference of which is provided with a counter-profile of the screw-shaped track (4) and a projecting part (59) for each deflecting recess, is disposed inside a hollow blank (57); a tool exercising radial forces (F) acts upon and reshapes the blank (57) from the outside, the inner circumferential surface of the blank (57) being shaped according to the counter-profile and the projecting part (59) of the tool arbor (56) during the reshaping process such that the screw-shaped track (4) and the deflecting recess (23) are formed. The invention also relates to a device for carrying out said method.