BALL SCREW DEVICE, LINEAR ACTUATOR AND VEHICLE STEERING SYSTEM
    1.
    发明申请
    BALL SCREW DEVICE, LINEAR ACTUATOR AND VEHICLE STEERING SYSTEM 有权
    球螺丝装置,线性致动器和车辆转向系统

    公开(公告)号:US20130239714A1

    公开(公告)日:2013-09-19

    申请号:US13877455

    申请日:2011-09-29

    Inventor: Kosuke Yamanaka

    Abstract: A ball screw device has a plurality of spiral raceways. One end and the other end of each raceway is connected via a bridge. An annular flange of a ball nut has a plurality of mounting portions at equal intervals in a circumferential direction. A fixing screw is fitted to each mounting portion. The bridges arranged so as to overlap with the annular flange in position in an axial direction are arranged at positions different in the circumferential direction from positions at which the mounting portions are arranged, and are arranged at unequal intervals in the circumferential direction.

    Abstract translation: 滚珠丝杠装置具有多个螺旋滚道。 每个滚道的一端和另一端通过桥连接。 滚珠螺母的环形凸缘在圆周方向上具有相等间隔的多个安装部。 固定螺丝安装在每个安装部分上。 布置成与环形凸缘在轴向方向上的位置重叠的桥被布置在圆周方向上与安装部分布置的位置不同的位置处,并且沿圆周方向以不等间隔布置。

    Ball screw assembly with enhanced radial load capacity and method of construction thereof
    2.
    发明授权
    Ball screw assembly with enhanced radial load capacity and method of construction thereof 有权
    具有增强的径向载荷能力的滚珠丝杠组件及其构造方法

    公开(公告)号:US08950282B2

    公开(公告)日:2015-02-10

    申请号:US13362303

    申请日:2012-01-31

    Abstract: A linear ball screw assembly and method of construction thereof is provided. The assembly includes a screw having a helical external groove and a ball nut having a through bore configured for receipt of the screw therethrough and including a helical internal groove radially aligned with the external groove of the screw to form a helical raceway. A plurality of axial load balls are disposed in the helical raceway. The nut includes a pair of non-grooved internal cylindrical surfaces extending in axially opposite directions from the internal groove along the external groove of the screw to provide outer surfaces of a pair of radial load raceways. A plurality of radial load balls are disposed in the radial load raceways. The radial and axial load balls have different diameters and/or the internal cylindrical surfaces are provided by a pair of sleeve inserts.

    Abstract translation: 提供一种直线滚珠丝杠组件及其构造方法。 组件包括具有螺旋形外部槽的螺钉和具有通孔的滚珠螺母,所述通孔构造成用于容纳螺钉,并且包括与螺钉的外部凹槽径向对准的螺旋形内槽,以形成螺旋形的滚道。 多个轴向负荷球设置在螺旋滚道中。 螺母包括一对非槽的内圆柱形表面,其沿着沿着螺钉的外槽的内凹槽沿轴向相反的方向延伸,以提供一对径向载荷滚道的外表面。 多个径向载荷球布置在径向载荷滚道中。 径向和轴向负载球具有不同的直径和/或内部圆柱形表面由一对套筒插入件提供。

    Ball screw mechanism and assembling method of the same
    3.
    发明授权
    Ball screw mechanism and assembling method of the same 有权
    滚珠丝杠机构及组装方法相同

    公开(公告)号:US08196486B2

    公开(公告)日:2012-06-12

    申请号:US11817631

    申请日:2006-09-05

    Abstract: Since it is configured that an female screw groove 2a of a nut 2 extends round an axis of the nut 2 through 360 degrees or less and a sectional shape thereof taken at right angles to the groove contains a circular arc portion 2c of 90 degrees or less and a rectilinear portion 2d which connects to the circular arc portion at a bottom of the groove and extends in parallel with the axis, after molding, a lower mold LM and an upper mold UM can simply be removed from a barrel mold BM in the axial direction, and consequently, the necessity of provision of a parting plane which passes through the thread groove 2a can be obviated, thereby making it possible to easily form the thread groove 2a which is free from a difference in level or a stepped portion.

    Abstract translation: 由于螺母2的阴螺纹槽2a在螺母2的轴线上延伸360度以下,其与槽成直角的截面形状为90度以下的圆弧部2c 以及直线部分2d,其在凹槽的底部处连接到圆弧部分并且与轴线平行延伸,在模制之后,下模LM和上模具UM可以简单地从轴向的圆筒模具BM中移除 因此,可以避免提供通过螺纹槽2a的分型面的必要性,从而可以容易地形成没有水平差或阶梯部的螺纹槽2a。

    Internal recirculating ball screw and nut assembly

    公开(公告)号:US20040103734A9

    公开(公告)日:2004-06-03

    申请号:US10413936

    申请日:2003-04-15

    Inventor: John Drake

    Abstract: An internal recirculating ball screw and nut system that is easier to manufacture and more reliant by virtue of a particular configuration of the grooves on the interior of the nut or the follower. Crossback portions of select nut grooves are arranged in a manner that allows the bearing balls to recirculate by slipping over the top of adjacent thread lands of the screw, advancing and recirculating within a single 360 degree rotation within said nut. Said recirculation is accomplished solely through the design of the path of a unitary nut, without use of any ancillary devices.

    Direct attachment electric motor operated ball nut and screw linear actuator
    5.
    发明授权
    Direct attachment electric motor operated ball nut and screw linear actuator 失效
    直接连接电动机操作的滚珠螺母和螺杆线性执行机构

    公开(公告)号:US06453761B1

    公开(公告)日:2002-09-24

    申请号:US09714312

    申请日:2000-11-16

    Abstract: A linear actuator comprises a ball screw carrying an axially restrained rotatable ball nut driven by an electrically energized motor. An enclosing motor housing has front and rear walls with axially aligned openings for passing the ball screw. The motor has a radially inner hollow stator assembly and a generally concentric radially outer rotor assembly. A can member is integrated with the rotor assembly to rotate therewith and has a radial end wall connected to the nut.

    Abstract translation: 线性致动器包括承载由电动马达驱动的轴向限制的可旋转滚珠螺母的滚珠丝杠。 封闭的马达壳体具有用于使滚珠丝杠通过的具有轴向对齐的开口的前壁和后壁。 电动机具有径向内部中空定子组件和大致同心的径向外部转子组件。 罐构件与转子组件一体地与其一起旋转并且具有连接到螺母的径向端壁。

    BALL SCREW ASSEMBLY WITH ENHANCED RADIAL LOAD CAPACITY AND METHOD OF CONSTRUCTION THEREOF
    6.
    发明申请
    BALL SCREW ASSEMBLY WITH ENHANCED RADIAL LOAD CAPACITY AND METHOD OF CONSTRUCTION THEREOF 有权
    具有增强径向载荷能力的球螺旋组件及其构造方法

    公开(公告)号:US20120192663A1

    公开(公告)日:2012-08-02

    申请号:US13362303

    申请日:2012-01-31

    Abstract: A linear ball screw assembly and method of construction thereof is provided. The assembly includes a screw having a helical external groove and a ball nut having a through bore configured for receipt of the screw therethrough and including a helical internal groove radially aligned with the external groove of the screw to form a helical raceway. A plurality of axial load balls are disposed in the helical raceway. The nut includes a pair of non-grooved internal cylindrical surfaces extending in axially opposite directions from the internal groove along the external groove of the screw to provide outer surfaces of a pair of radial load raceways. A plurality of radial load balls are disposed in the radial load raceways. The radial and axial load balls have different diameters and/or the internal cylindrical surfaces are provided by a pair of sleeve inserts.

    Abstract translation: 提供一种直线滚珠丝杠组件及其构造方法。 组件包括具有螺旋形外部槽的螺钉和具有通孔的滚珠螺母,所述通孔构造成用于容纳螺钉,并且包括与螺钉的外部凹槽径向对准的螺旋形内槽,以形成螺旋形的滚道。 多个轴向负荷球设置在螺旋滚道中。 螺母包括一对非槽的内圆柱形表面,其沿着沿着螺钉的外槽的内凹槽沿轴向相反的方向延伸,以提供一对径向载荷滚道的外表面。 多个径向载荷球布置在径向载荷滚道中。 径向和轴向负载球具有不同的直径和/或内部圆柱形表面由一对套筒插入件提供。

    Assembly apparatus for ball screw device, parts supply device and counter device
    7.
    发明申请
    Assembly apparatus for ball screw device, parts supply device and counter device 有权
    滚珠丝杠装置装配装置,零件供应装置和计数装置

    公开(公告)号:US20070137349A1

    公开(公告)日:2007-06-21

    申请号:US11546351

    申请日:2006-10-12

    Abstract: An assembly apparatus for assembling a ball screw device includes a support block, a nut arranged in a longitudinal direction, a nut reception base that arranges the nut so that its axial direction towards vertical direction of the assembly apparatus and that supports the nut so as to elevate the nut with respect to the support block, a temporary shaft inserted into an inner diameter side of the nut arranged on the nut reception base and rotatably supported by the support block, an inclined face provided at a forward end portion of the temporary shaft, for guiding balls into the nut raceway groove and a pushing mechanism that has elasticity in the radial direction of the temporary shaft and that pushes balls which are fed into the nut raceway groove by a forward end portion protruding from the outer circumferential face of the temporary shaft.

    Abstract translation: 用于组装滚珠丝杠装置的组装装置包括支撑块,沿纵向布置的螺母,螺母接收基座,其将螺母布置成使得其轴向朝向组装设备的垂直方向并且支撑螺母,以便 相对于支撑块升高螺母,临时轴插入到设置在螺母接收基座上并由支撑块可旋转地支撑的螺母的内径侧中,设置在临时轴的前端部的倾斜面, 用于将球引导到螺母滚道槽中;以及推动机构,其在临时轴的径向方向上具有弹性,并且通过从临时轴的外周面突出的前端部推动供给到螺母滚道槽中的球 。

    Lubricant supply device
    8.
    发明授权
    Lubricant supply device 有权
    润滑油供应装置

    公开(公告)号:US06364058B1

    公开(公告)日:2002-04-02

    申请号:US09512677

    申请日:2000-02-25

    Abstract: A lubricant supply device is to be fitted to a nut member engaging with a screw shaft through rolling members to supply lubricant to the screw shaft along with a relative rotational motion of the nut member to the screw shaft. The device comprises an application member, a lubricant storage member and a control device. The application member for applying the lubricant on the screw shaft has at least one tongue portion, which is capable of coming into contact with at least one of rolling-member running surface of the screw shaft. The number of the at least one tongue portion is identical with or larger than the number of the rolling-member running surface. The lubricant storage member supplies the lubricant to the application member. The control device controls an amount of the lubricant supplied from the lubricant storage member to the application member.

    Abstract translation: 润滑剂供给装置将被安装到通过滚动构件与螺纹轴接合的螺母构件,以将螺母件与螺杆轴的相对旋转运动一起向螺杆轴提供润滑剂。 该装置包括施加构件,润滑剂储存构件和控制装置。 用于在螺杆轴上施加润滑剂的施加构件具有至少一个舌部,其能够与螺杆轴的滚动构件运行表面中的至少一个接触。 至少一个舌部的数量等于或大于滚动件运行表面的数量。 润滑剂储存构件将润滑剂供应到施加构件。 控制装置控制从润滑剂储存构件向施加构件供给的润滑剂的量。

    Ball screw device, linear actuator and vehicle steering system
    10.
    发明授权
    Ball screw device, linear actuator and vehicle steering system 有权
    滚珠丝杠装置,线性执行器和车辆转向系统

    公开(公告)号:US08960037B2

    公开(公告)日:2015-02-24

    申请号:US13877455

    申请日:2011-09-29

    Inventor: Kosuke Yamanaka

    Abstract: A ball screw device has a plurality of spiral raceways. One end and the other end of each raceway is connected via a bridge. An annular flange of a ball nut has a plurality of mounting portions at equal intervals in a circumferential direction. A fixing screw is fitted to each mounting portion. The bridges arranged so as to overlap with the annular flange in position in an axial direction are arranged at positions different in the circumferential direction from positions at which the mounting portions are arranged, and are arranged at unequal intervals in the circumferential direction.

    Abstract translation: 滚珠丝杠装置具有多个螺旋滚道。 每个滚道的一端和另一端通过桥连接。 滚珠螺母的环形凸缘在圆周方向上具有相等间隔的多个安装部。 固定螺丝安装在每个安装部分上。 布置成与环形凸缘在轴向方向上的位置重叠的桥被布置在圆周方向上与安装部分布置的位置不同的位置处,并且沿圆周方向以不等间隔布置。

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