Cross universal joint and manufacturing method thereof
    1.
    发明授权
    Cross universal joint and manufacturing method thereof 有权
    十字万向节及其制造方法

    公开(公告)号:US08986126B2

    公开(公告)日:2015-03-24

    申请号:US14118969

    申请日:2012-07-23

    IPC分类号: F16D3/38 F16D3/26

    摘要: Structure of a cross universal joint is achieved in which the fact that an excessive torque was applied to a universal joint due to a collision accident or mishandling can be easily determined afterwards. Protrusions 20, which are straight lines as seen from the outside surface sides of linking arm sections 15c of a yoke 12c, are formed on the outside surfaces of the linking arm sections 15c. When an excessive torque acts and the linking arm sections 15c are plastically deformed, the protrusions 20 change from a straight line to a non-straight line. From this change it is possible to easily confirm that an excessive torque has been applied to a cross universal joint that includes this yoke 12c. Moreover, when the space between the inside surfaces of the linking arm sections 15c is taken to be D, and the length in the axial direction of the linking arm sections 15c is taken to be L, the dimensions of the parts of the yoke 12c are regulated so that the relation 3

    摘要翻译: 实现十字万向接头的结构,其中随后可以容易地确定由于碰撞事故或误操作而向万用接头施加过大扭矩的事实。 在连接臂部15c的外表面上形成有从轭部12c的连接臂部15c的外表面侧观察的直线的突起20。 当过大的扭矩作用并且连接臂部15c塑性变形时,突起20从直线变为非直线。 从该变化可以容易地确认对包括该轭12c的十字万向接头施加过大的扭矩。 此外,当连接臂部15c的内表面之间的空间被取为D,并且连接臂部15c的轴向长度被取为L时,轭12c的部分的尺寸为 使得满足3

    Fluid bearing device
    3.
    发明授权
    Fluid bearing device 失效
    流体轴承装置

    公开(公告)号:US06827495B2

    公开(公告)日:2004-12-07

    申请号:US10369757

    申请日:2003-02-21

    IPC分类号: F16C3206

    摘要: A spindle motor comprises a hollow shaft 13 having one end formed with a thrust plate 15, and a sleeve 12 provided to face the shaft 13 through a radial fluid bearing clearance R therebetween, wherein a thrust fluid bearing S is formed between the opposite flat surfaces 15s of the thrust plate 15 and the sleeve 12 facing the flat surfaces 15s. In addition, the hollow shaft 13 has a connection portion 30 at the lower end formed in a concave shape, such that the thrust plate 15 is guided by the inner peripheral surface of the connection portion 30 such that it is coaxial with the shaft 15, and fixed to the shaft 13 by fitting the cylindrical portion 20b of a set screw 20 to the through hole 15b of the thrust plate 15 and the connection portion 30.

    摘要翻译: 主轴电动机包括一端形成有推力板15的空心轴13和通过其间的径向流体轴承间隙R而与轴13相对设置的套筒12,其中推力流体轴承S形成在相对的平面之间 止推板15的15s和面向平坦表面15s的套筒12。 此外,空心轴13在下端形成有连接部30,该连接部30形成为凹形,使得止推板15由连接部30的内周面引导,使其与轴15同轴, 并通过将固定螺钉20的圆筒部20b装配到推力板15的通孔15b和连接部30而固定在轴13上。

    DRIVING-WHEEL SUPPORTING HUB UNIT AND ITS MANUFACTURING METHOD
    5.
    发明申请
    DRIVING-WHEEL SUPPORTING HUB UNIT AND ITS MANUFACTURING METHOD 有权
    驱动轮支持单元及其制造方法

    公开(公告)号:US20090045670A1

    公开(公告)日:2009-02-19

    申请号:US12295169

    申请日:2007-03-29

    IPC分类号: B60B27/02 B21K1/40

    摘要: When an inner ring 3 of a driving-wheel supporting hub unit is fixed to a hub 2, a pressing die 24 is displaced downward and an annular working surface 27 at a lower end surface of the pressing die 24 is pressed against a front end of a cylindrical portion 13a over its whole periphery. Further, in this state, the pressing die 24 is pressed downward toward the hub 2 without rocking the pressing die 24 relative to the hub 2. Thus, the cylindrical portion 13a is plastically deformed radially outward along the working surface 27 simultaneously over its whole periphery. By adopting this method, the operation of plastically deforming the cylindrical portion 13a at the inner end of the hub 2 to form a caulking portion, can be easily and performed accurately. Accordingly, the structure of the caulking portion forming apparatus 21 can be simplified.

    摘要翻译: 当驱动轮支撑轮毂单元的内圈3固定到轮毂2上时,压模24向下移位,并且在压模24的下端面处的环形工作表面27被压靠在 在其整个周边上的圆柱形部分13a。 此外,在这种状态下,按压模具24向下压向轮毂2,而不会使压模24相对于轮毂2摇动。因此,圆筒部分13a沿着工作表面27在其整个周边上同时沿径向向外塑性变形 。 通过采用这种方法,可以容易地并且精确地进行使轮毂2的内端的圆筒部13a塑性变形以形成铆接部的操作。 因此,可以简化铆接部形成装置21的结构。

    Manufacturing method and manufacturing apparatus for wheel-support rolling bearing unit
    6.
    发明授权
    Manufacturing method and manufacturing apparatus for wheel-support rolling bearing unit 有权
    车轮支承滚动轴承单元的制造方法和制造装置

    公开(公告)号:US07121003B2

    公开(公告)日:2006-10-17

    申请号:US11018424

    申请日:2004-12-21

    IPC分类号: B21D53/10 B23P19/04

    摘要: In a manufacturing method and a manufacturing apparatus for a wheel-support rolling bearing unit, when forming a crimped portion 14 on an end (inside end) of a hub main body 8a, by rocking die forging using a die 26, while preventing enlargement of equipment, in order to prevent forming indentations in a second outer raceway 6a and a second inner raceway 12a, in the present invention, the outer ring 1a is turned by a motor 48, and the balls 32 are rotated. A difference is provided between the rotation speed of the balls 32 and an oscillation speed of the die 26. This difference is preferably at least 10 min−1. By rotating the balls 32 the formation of indentations in the second outer raceway 6a and the second inner raceway 12a is prevented. Moreover, by providing the difference between the rotation speed and the oscillation speed of the die 26, an increase in the torque required for rotation the outer ring 1a is suppressed.

    摘要翻译: 在用于车轮支承滚动轴承单元的制造方法和制造装置中,当通过使用模具26摇摆模锻而在轮毂主体8a的端部(内端)形成卷边部14时,同时防止放大 的设备,为了防止在第二外滚道6a和第二内滚道12a中形成凹陷,在本发明中,外圈1a由马达48转动,滚珠32旋转。 球32的旋转速度和模具26的振动速度之间存在差异。 该差异优选为至少10分钟-1。 通过旋转球32,防止在第二外滚道6a和第二内滚道12a中形成凹陷。 此外,通过提供模具26的旋转速度和振动速度之间的差异,可以抑制旋转外圈1a所需的扭矩的增加。

    Driving-wheel supporting hub unit and its manufacturing method
    8.
    发明授权
    Driving-wheel supporting hub unit and its manufacturing method 有权
    驱动轮支撑轮毂单元及其制造方法

    公开(公告)号:US08814278B2

    公开(公告)日:2014-08-26

    申请号:US12295169

    申请日:2007-03-29

    摘要: When an inner ring of a driving-wheel supporting hub unit is fixed to a hub, a pressing die is displaced downward and an annular working surface at a lower end surface of the pressing die is pressed against a front end of a cylindrical portion over its whole periphery. Further, in this state, the pressing die is pressed downward toward the hub without rocking the pressing die relative to the hub. Thus, the cylindrical portion is plastically deformed radially outward along the working surface simultaneously over its whole periphery. By adopting this method, the operation of plastically deforming the cylindrical portion at the inner end of the hub to form a caulking portion, can be easily and performed accurately. Accordingly, the structure of the caulking portion forming apparatus can be simplified.

    摘要翻译: 当驱动轮支撑轮毂单元的内圈固定在轮毂上时,压模向下移位,压模的下端面处的环形工作面压靠在其上的圆柱形部分的前端 整个周边。 此外,在这种状态下,按压模具向下压向轮毂而不使压模相对于轮毂摇动。 因此,圆柱形部分沿其工作表面在其整个周边上同时沿径向向外塑性变形。 通过采用这种方法,可以容易且准确地进行使轮毂内端的圆筒部塑性变形而形成铆接部的动作。 因此,可以简化铆接部形成装置的结构。

    Rolling bearing unit for a drive wheel and a wheel driving unit
    9.
    发明授权
    Rolling bearing unit for a drive wheel and a wheel driving unit 有权
    用于驱动轮和车轮驱动单元的滚动轴承单元

    公开(公告)号:US06908231B2

    公开(公告)日:2005-06-21

    申请号:US10173973

    申请日:2002-06-19

    申请人: Nobuyuki Hagiwara

    发明人: Nobuyuki Hagiwara

    摘要: A rolling bearing unit for a drive wheel comprises a hub and a double row rolling bearing thereon. The hub has a first inner ring raceway formed on an inner ring element integrally or separately formed with the hub in an intermediate portion, and a fit cylindrical surface section in a part closer to the inner end of the outer peripheral surface. A separate inner ring having a second inner ring raceway is fitted on the hub, with the axially inner end surface pressed by a caulking portion formed by plastically deforming a cylindrical section formed in the axially inner end portion of the hub in a state that the inner ring is fitted on the fit cylindrical surface section, to be fixed to the hub.

    摘要翻译: 用于驱动轮的滚动轴承单元包括轮毂和双列滚动轴承。 轮毂具有形成在内圈元件上的第一内圈滚道,所述内圈元件在中间部分中与所述毂一体地或分开地形成,并且在靠近所述外周表面的内端的部分中具有配合的圆柱形表面部分。 具有第二内圈滚道的单独的内圈安装在轮毂上,其轴向内端面被铆接部分挤压,所述铆接部分通过使形成在轮毂的轴向内端部的圆柱形部分的塑性变形而形成, 环安装在合适的圆柱形表面部分上,固定到轮毂上。