ELECTRIC POWER STEERING DEVICE AND SHAFT COUPLER USED THEREIN

    公开(公告)号:EP2818386B1

    公开(公告)日:2018-11-21

    申请号:EP13751585.4

    申请日:2013-02-04

    申请人: KYB Corporation

    IPC分类号: B62D5/04 F16D3/12 F16D3/68

    摘要: A shaft coupler that couples a worm shaft and an output shaft of an electric motor in an electric power steering device includes a joint on a motor side that is connected to the output shaft, a joint on a worm side that is connected to the worm shaft, and a coupling that is provided between the joints and that is for transmitting rotational torque of the electric motor to the worm shaft. The joint on the motor side and the joint on the worm side, each having a plurality of protrusion parts that extend in an axial direction, are arranged so that the protrusion parts are aligned alternately in a circumferential direction. The coupling is formed by a plurality of caps that are fitted to the protrusion parts of the joint on the motor side or the joint on the worm side.

    Torque fluctuation absorbing apparatus

    公开(公告)号:EP2703688B1

    公开(公告)日:2018-11-14

    申请号:EP13181175.4

    申请日:2013-08-21

    IPC分类号: F16F15/14

    CPC分类号: F16D3/12 F16F15/145

    摘要: A torque fluctuation absorbing apparatus absorbing a torsional vibration includes a plate member (1, 101a, 101b, 101c, 201, 301a, 301d, 301g, 301j) configured to be provided at the power transmission system (120a) and including a rolling guide surface (121, 215, 315a, 315b), and a mass member (2, 202, 302k) rolling on the rolling guide surface of the plate member. The rolling guide surface includes plural first rolling guide surfaces (121a, 215a, 315b) each formed in an arc shape and provided radially inward relative to an outer circumferential portion of the plate member to be arranged in a circumferential direction and a second rolling guide surface (121b, 121d, 215b, 215c, 215d, 215e, 215f, 315a) allowing the mass member to roll on a locus which is different from a locus on the first rolling guide surface formed in the arc shape. Loci of the mass member are seamlessly switched from the locus in which the mass member rolls on the first rolling guide surface to the locus in which the mass member rolls on the second rolling guide surface.

    TORSIONAL VIBRATION DAMPER
    4.
    发明公开

    公开(公告)号:EP3396200A1

    公开(公告)日:2018-10-31

    申请号:EP18169074.4

    申请日:2018-04-24

    IPC分类号: F16F15/14

    摘要: A torsional vibration damper (1) in which vibration damping performance is ensured by preventing a contact between a rolling mass and a rotary member. A rolling mass (19) includes a trunk (26) penetrating through a bore (20). A first corner (32) formed in an axial end of the trunk (26) is rounded. A rotary member (18) includes a second corner (35) formed in the bore (29). an axial length (B) of the first corner (32) of the rolling mass (19) is longer than an axial length (A) of the second corner (35) of the rotary member (18).

    RIEMENSCHEIBENENTKOPPLER
    6.
    发明公开

    公开(公告)号:EP3274603A1

    公开(公告)日:2018-01-31

    申请号:EP16719202.0

    申请日:2016-03-16

    发明人: HAUCK, Christian

    IPC分类号: F16D3/12

    摘要: The invention relates to a decoupler (1) for rotationally driving a generator of an auxiliary-unit belt drive of an internal combustion engine, comprising: a pulley (2), a hub (4), and two bearing points (5, 6), at which the pulley is rotatably supported on the hub, a series connection of a helical torsion spring (13) and a one-way clutch (12), which allows the hub to overtake the pulley, and a spring plate (19), which is rotationally fixed in relation to the pulley or the hub, for the one spring end and a spring plate (18), which can be rotated in relation to the pulley and the hub, for the other spring end. The spring ends, which lie against ramp steps (20) of the spring plates, radially expand the helical torsion spring as the driving torque is transmitted. The frictional torque, produced in one of the bearing points when the hub is overtaking, acts on the rotatable spring plate in the direction of rotation of the rotationally fixed spring plate. The other bearing point, according to the invention, has a part that is rotationally fixed in relation to the rotationally fixed spring plate, on which part the rotatable spring plate is supported, a further frictional torque thus being produced, which acts on the rotatable spring plate in the direction of rotation of the rotationally fixed spring plate.

    VORRICHTUNG ZUR EINBRINGUNG EINES HILFSDREHMOMENTS IN EINE LENKWELLE
    8.
    发明公开
    VORRICHTUNG ZUR EINBRINGUNG EINES HILFSDREHMOMENTS IN EINE LENKWELLE 审中-公开
    用于向方向盘引入辅助扭矩的装置

    公开(公告)号:EP3253644A1

    公开(公告)日:2017-12-13

    申请号:EP15813871.9

    申请日:2015-12-22

    IPC分类号: B62D5/04

    摘要: The invention relates to a device (2) for introducing an auxiliary torque into a steering shaft (1) of an electromechanical power steering system (100), comprising an electric motor (4) which has a motor shaft (40) that is coupled to a gear wheel (21) via a coupling element (6) so as to transmit a torque, said gear wheel meshing with a toothed wheel (20) arranged on the steering shaft (1) in a rotationally fixed manner. The aim of the invention is to provide an improved coupling between the electric motor (4) and the gear wheel (21) with reduced production complexity and cost. According to the invention this is achieved in that the coupling element has a torsionally elastic rod element (6) which is torsioinally softer than the motor shaft (40) and the gear wheel (21).

    STRUCTURE FOR SHAFT, MALE MEMBER, AND FEMALE MEMBER
    10.
    发明公开
    STRUCTURE FOR SHAFT, MALE MEMBER, AND FEMALE MEMBER 审中-公开
    结构为轴,男性成员和女性成员

    公开(公告)号:EP3176452A1

    公开(公告)日:2017-06-07

    申请号:EP15826434.1

    申请日:2015-06-08

    申请人: Nitta Corporation

    IPC分类号: F16D3/06

    摘要: A shaft structure installed in a shaft capable of making a power-transmission includes a male component having splines and spline bottoms on an outer periphery, a female component having splines and spline bottoms on an inner periphery and allows the male component to be slidably inserted in an axial direction thereby making up the shaft structure, and an elastic member covering the outer or inner periphery of the male or female component, wherein the female component has substantially U or V-shaped cross-section grooves on the outer periphery as opposed to splines, and a shape defined by the spline of the female component and the groove is such a shape that when the male or female component is twisted and a stress is applied to the spline in a direction around the shaft, the spline could be elastically deformed and absorb a maximum design stress within an elastic region.

    摘要翻译: 安装在能够进行动力传递的轴上的轴结构包括在外周上具有花键和花键底部的凸形部件,在内周上具有花键和花键底部的凹形部件,并且允许凸形部件可滑动地插入 由此构成轴结构的轴向方向以及覆盖阳部件或阴部件的外周或内周的弹性构件,其中阴构件在外周上具有与花键相对的基本上U形或V形的横截面凹槽 ,并且由阴部件和槽的花键限定的形状是这样的形状:当阳部件或阴部件扭曲并且沿着围绕轴的方向向花键施加应力时,花键可以弹性变形并且 吸收弹性区域内的最大设计应力。