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    • 4. 发明授权
    • Electromechanical vehicle brake
    • 机电车辆刹车
    • US08875851B2
    • 2014-11-04
    • US13262004
    • 2010-03-17
    • Thomas Winkler
    • Thomas Winkler
    • B60T7/00B60T13/58F16D65/14F16H25/22F16D65/18F16D121/24F16D121/02F16D123/00F16D125/40F16D125/52
    • F16D65/18F16D2121/02F16D2121/24F16D2123/00F16D2125/40F16D2125/52F16H25/2233Y10T74/18576Y10T74/19749
    • A combined electromechanical vehicle brake has a hydraulically activated operating brake and an electromechanically activated parking brake apparatus. A hydraulic operating pressure chamber in a brake housing is delimited by a brake piston that can be loaded by hydraulic pressure to carry out operating braking actions. The brake piston can be activated along a longitudinal piston axis to achieve a braking effect. The parking brake apparatus acts upon the brake piston by a gear unit because the gear unit converts the rotational movement of an electromechanical actuator into a translational movement, causing the brake piston to be activated to carry out parking brake processes and remain in the activated position. The gear unit has a threaded spindle and a threaded nut that contact one another via a plurality of rolling elements. A spring element allows the rolling elements to slip when the gear unit is activated in the unloaded state.
    • 组合的机电车辆制动器具有液压激活的操作制动器和机电启动的驻车制动装置。 制动器壳体中的液压操作压力室由可通过液压加载以执行操作制动动作的制动器活塞限定。 制动活塞可以沿着纵向活塞轴线起作用,以实现制动效果。 驻车制动装置通过齿轮单元作用在制动活塞上,因为齿轮单元将机电致动器的旋转运动转换成平移运动,致使制动活塞进行驻车制动过程并保持在激活位置。 齿轮单元具有螺纹主轴和通过多个滚动元件彼此接触的螺纹螺母。 当齿轮单元在无负载状态下被激活时,弹簧元件允许滚动元件滑动。
    • 8. 发明申请
    • Ball screw
    • 滚珠丝杠
    • US20030126937A1
    • 2003-07-10
    • US10331654
    • 2002-12-31
    • NSK LTD.
    • Toshiharu Kajita
    • F16H025/22
    • F16C33/3706F16C33/3713F16H25/2233F16H25/24F16H2025/2481Y10T74/18576Y10T74/19702Y10T74/19721Y10T74/19744
    • A ball screw has: a screw shaft having a spiral ball rolling groove; a ball nut having a ball rolling groove corresponding to said ball rolling groove; and a large number of balls interposed between said ball rolling grooves so as to roll freely; wherein said ball rolling groove of at least one of said screw shaft and said ball nut is ground so that a maximum value component of a number of undulation peaks per lead in said ball rolling groove is out of a range of from 0.95 nm to 1.05 nm centered on an integral multiple nm of a number m of load balls per lead calculated by an expression: 1 ( null null null null d m ) 2 + L 2 P in which P is a distance between centers of said adjacent load balls disposed at substantially equal intervals in said ball rolling groove, dm is a ball pitch circle diameter, and L is a lead.
    • 滚珠丝杠具有:具有螺旋滚珠滚动槽的螺杆轴; 具有与所述滚珠滚动槽相对应的滚珠滚动槽的滚珠螺母; 以及插入在所述滚珠滚动槽之间以便自由滚动的大量滚珠; 其特征在于,所述丝杠轴和所述滚珠螺母中的至少一个的所述滚珠滚动槽被研磨,使得所述滚珠滚动槽中的每个引线数量的起伏峰值的最大值分量在0.95nm至1.05nm的范围内 以一个表达式计算的每个导数的m个负载球的整数倍的nm为中心: 1 pi it > > 2 + L 2 其中P是所述相邻负载球的中心之间的距离 处以苏 所述滚珠滚动槽的间隔相等,dm为球节圆直径,L为导线。
        • 9. 发明授权
        • Ball screw
        • 滚珠丝杠
        • US06439072B1
        • 2002-08-27
        • US09313999
        • 1999-05-19
        • Toshiharu KajitaTakayuki YabeHideyuki Sato
        • Toshiharu KajitaTakayuki YabeHideyuki Sato
        • F16H2702
        • F16H25/2223F16H25/2233Y10T74/18576Y10T74/18648
        • A ball nut 30 has a dowel 60 for circulating balls 50. A cage type retainer 40 is disposed between a screw shaft 20 and the ball nut 30 which engages with the screw shaft 20 through the ball 50. The retainer 40 is provided with a plurality of elongated holes 42 at a peripheral surface thereof to extend to an axial direction thereof so as to separate the balls 50 from one another in a peripheral direction thereof and to hold the balls therein to be free to roll. The distance of a space between the screw shaft 20 and the cage type retainer 40 is set to be smaller than that of a space between the dowel 60 and the cage type retainer 40 n the radial direction of the screw shaft.
        • 滚珠螺母30具有用于循环滚珠50的定位销60.笼式保持器40设置在螺杆轴20和滚珠螺母30之间,滚珠螺母30通过滚珠50与螺杆轴20接合。保持架40设有多个 在其周向表面上延伸有细长孔42,以沿其轴向方向延伸,以便使球50在其圆周方向上彼此分离,并将球保持在其中以自由滚动。 螺杆轴20与保持架型保持架40之间的距离设定为小于螺钉轴的径向方向上的定位销60与保持架型保持架40之间的间隔。