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    • 25. 发明授权
    • Reciprocating drive
    • 接力驱动
    • US3792616A
    • 1974-02-19
    • US3792616D
    • 1973-02-07
    • NORCO INC
    • WENTZEL M
    • B41J19/20F16H25/12
    • F16H25/12Y10T74/18312
    • A reciprocating drive mechanism comprising an elongate shaft and a collar which fits around the shaft and is slidable lengthwise thereof. The shaft has one or more grooves cut into it, each groove constituting a closed loop. If multiple loops are provided on the shaft they are all identical to and arranged in conformity with each other. The collar has one or more roller pins projecting into its bore and adapted to be accommodated respectively in the grooves of the shaft. The roller pins are carried by means of anti-friction bearings which enable them to turn easily and with the least amount of friction. The shaft grooves preferably have divergent walls, and the rollers have conical tips adapted to engage and ride along the walls in the manner of a roller following a track. Additionally, the rollers are spring biased inwardly to insure proper loading contact of each roller with a wall of its respective groove. At its two ends, the collar carries annular needle bearing assemblages which ride on the shaft and centralize the latter in the collar as well as providing a low friction bearing for the shaft. Any continued relative movement between the shaft and collar is characterized by a reciprocation of the latter with respect to the shaft.
    • 一种往复式驱动机构,包括细长轴和一个套环,该套环围绕该轴并且可沿其长度方向滑动。 该轴具有切入其中的一个或多个槽,每个槽构成闭环。 如果在轴上设置多个环,则它们都相同并排列成彼此一致。 套环具有一个或多个凸出的突出到其孔中并且适于分别容纳在轴的槽中的辊销。 滚子销通过抗摩擦轴承承载,使其能够容易地并且以最少的摩擦力转动。 轴槽优选地具有发散壁,并且辊具有锥形尖端,其适于沿着跟随轨道的辊的方式沿着壁接合和骑行。 此外,辊子被向内弹簧偏压,以确保每个辊子与相应凹槽的壁的适当负载接触。 在其两端,轴环带有环形滚针轴承组件,其骑在轴上并将其集中在轴环中,以及为轴提供低摩擦轴承。 轴和轴环之间的任何持续的相对运动的特征在于后者相对于轴的往复运动。
    • 26. 发明授权
    • Radial roller anti-friction transmission with eccentric bushings
    • 径向滚子抗摩擦传动与偏心布置
    • US3766788A
    • 1973-10-23
    • US3766788D
    • 1972-08-23
    • NORCO INC
    • METZ J
    • F16H25/22F16H25/24F16H55/18F16H1/18F16H55/22
    • F16H25/2261F16H25/2003Y10T74/18728Y10T74/19805Y10T74/19902Y10T74/19981
    • A mechanical transmission having an anti-friction nut construction which comprises an annular body member provided with a longitudinal bore to receive a cooperable member in the form of a screw or bar, and with a plurality of roller elements extending radially into the bore for engagement with side wall surfaces of the cooperable member. The body has sockets in which there are eccentric bushing assemblages carrying the roller elements on anti-friction bearings. The assemblages are rotatable in the sockets, and thus the positions of the roller elements can be minutely adjustably shifted laterally. Locking means secure the assemblages against movement once they are properly positioned. The above arrangement enables a given nut to be used with screws or bars of slightly differing tolerances and pitches, since the roller elements can be shifted within limits to accommodate the slight inevitable manufacturing variations. Alternately, the bushing assemblages can be adjusted so the rollers engage opposite side walls of the groove of the screw or bar, and thus backlash can be reduced to zero. The assemblages are easily removable from the body to facilitate servicing and replacement.
    • 具有抗摩擦螺母结构的机械传动装置,其包括设置有纵向孔的环形主体构件,以容纳呈螺杆或杆形式的可配合构件,并且具有径向延伸到所述孔中的多个滚子元件,用于与 可配合构件的侧壁表面。 本体具有插座,其中存在承载滚子元件的偏心衬套组件在抗摩擦轴承上。 组合件可以在插座中旋转,因此滚子元件的位置可以被精确地可调地横向偏移。 锁定意味着固定组合件,一旦它们被正确定位就不会移动。 上述布置使得可以使用具有稍微不同的公差和间距的螺钉或杆使用给定的螺母,因为滚子元件可以在限制内移动以适应轻微的不可避免的制造变化。 或者,可以调整衬套组件,使得辊接合螺钉或杆的槽的相对侧壁,并且因此齿隙可以减小到零。 组合可以方便地从身体移除,以方便维修和更换。