Ball screw mechanism and assembling method of the same
    1.
    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

    IPC分类号: F16H1/24

    摘要: 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.

    摘要翻译: 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。

    Ball Screw
    4.
    发明申请
    Ball Screw 审中-公开
    滚珠丝杠

    公开(公告)号:US20130220047A1

    公开(公告)日:2013-08-29

    申请号:US13879752

    申请日:2011-03-31

    IPC分类号: F16H25/22

    摘要: A ball screw having a groove-shaped ball return passage has improved durability, ball circulation performance, and working performance. The ball screw is provided with: a threaded shaft having a spiral groove at its outer circumferential surface; a nut having a spiral groove which faces the spiral groove at its inner circumferential surface; a plurality of balls rotatably loaded in a spiral raceway constituted by the two spiral grooves; and a ball circulation groove which returns and circulates the balls from an end point to a start point of the raceway. Further, the edge portions constituted by the two side surfaces of the ball circulation groove and the surfaces which continue from the side surfaces and extend in the axial direction are formed to be rounded.

    摘要翻译: 具有槽形球返回通道的滚珠丝杠具有改进的耐久性,球循环性能和工作性能。 滚珠丝杠设有:螺纹轴,其外圆周表面具有螺旋槽; 螺母,其具有在其内周面处面对螺旋槽的螺旋槽; 可旋转地装载在由两个螺旋槽构成的螺旋滚道中的多个滚珠; 以及球循环槽,其使球从端点返回到滚道的起始点。 此外,由球循环槽的两个侧面构成的边缘部分和从侧面延伸并在轴向方向上延伸的表面形成为圆形。

    Ball Screw and Manufacturing Method of Nut for Ball Screw
    5.
    发明申请
    Ball Screw and Manufacturing Method of Nut for Ball Screw 审中-公开
    滚珠丝杠螺母和螺母的制造方法

    公开(公告)号:US20120325036A1

    公开(公告)日:2012-12-27

    申请号:US13581210

    申请日:2011-03-16

    IPC分类号: F16H25/22 B21K1/70

    摘要: A ball screw is provided in which an outer circumferential formation is formed at a portion facing a ball circulating passage out of outer circumferential surface of a nut. The ball screw includes: a screw shaft having on its outer circumferential surface a screw groove; a nut having on its inner circumferential surface a screw groove facing the screw groove; a plurality of balls rollably loaded in a spiral ball rolling passage formed by both screw grooves; and a ball circulating passage to return the balls from a start point to an end point of the ball rolling passage for recirculation. The ball circulating passage is a concaved groove formed by concaving a groove on a part of the cylindrical inner circumferential surface of the nut by plastic working. Then, a flange is integrally provided at a portion facing the ball circulating passage and the screw groove.

    摘要翻译: 提供一种滚珠丝杠,其中在与螺母的外周面相对的面向球循环通道的部分处形成有外周部结构。 滚珠丝杠包括:螺杆轴,其外周面上具有螺纹槽; 螺母在其内周面上具有面向螺纹槽的螺纹槽; 可滚动地装载在由两个螺纹槽形成的螺旋滚珠滚动通道中的多个滚珠; 以及球循环通道,用于将球从起始点返回到球滚动通道的终点以用于再循环。 球循环通道是通过塑性加工在螺母的圆柱形内圆周表面的一部分上凹入凹槽而形成的凹槽。 然后,在面对球循环通道和螺纹槽的部分上一体地设有凸缘。