公开(公告)号：US06675669B2

公开(公告)日：2004-01-13

申请号：US09932078

申请日：2001-08-17

申请人： Noriaki Sekiya ,  Daisuke Maruyama ,  Toshiyuki Iehisa ,  Kazuo Miyaguchi

发明人： Noriaki Sekiya ,  Daisuke Maruyama ,  Toshiyuki Iehisa ,  Kazuo Miyaguchi

IPC分类号： F16H2522

CPC分类号： F16H25/2214 ,  Y10T74/19767 ,  Y10T74/19772

摘要： A ball screw apparatus is provided with a screw shaft having a spiral ball screw groove, a nut member having a screw groove, and a plurality of balls. A smoothly continuous worked portion is formed at a portion of the screw groove by grinding a corner portion between the screw groove and a connecting way. The worked portion is formed such that the distance between the screw grooves is gradually reduced regarding an advancing direction of the ball entering from the connecting way in between the screw grooves. This worked portion extends from an end of the connecting way in a circumferential direction of the nut member and within a range of 90° from the corner portion along the circumferential direction of the nut member.

摘要翻译： 一种滚珠丝杠装置具有螺旋轴，其具有螺旋滚珠丝杠槽，螺母构件，具有螺纹槽，以及多个滚珠。 通过研磨螺纹槽和连接方式之间的角部，在螺纹槽的一部分处形成平滑连续的加工部分。 加工部形成为使得螺旋槽之间的距离随着从螺旋槽之间的连接方式进入的球的前进方向而逐渐减小。 该加工部从螺母构件的圆周方向的连接方向的端部延伸，并且在从螺母构件的圆周方向的角部90°的范围内延伸。

公开(公告)号：US06450055B1

公开(公告)日：2002-09-17

申请号：US09653072

申请日：2000-08-31

申请人： Noriaki Sekiya ,  Daisuke Maruyama ,  Toshiyuki Iehisa ,  Kazuo Miyaguchi

发明人： Noriaki Sekiya ,  Daisuke Maruyama ,  Toshiyuki Iehisa ,  Kazuo Miyaguchi

IPC分类号： F16H2522

CPC分类号： F16H25/2214 ,  Y10T74/19772

摘要： A ball screw apparatus comprises a screw shaft, a nut, and a plurality of balls. A first helical groove is formed at an outer peripheral surface of the screw shaft. A second helical groove is formed at an inner peripheral surface of the nut. A rolling contact way of balls is defined by the first helical groove and the second helical groove facing each other. A connecting way formed of a tube for connecting a part and another part of the rolling contact way is provided on the nut. An endlessly communicating circuit is defined by the connecting way and the rolling contact way. Each of the balls is endlessly arranged in the circuit. A smoothly continuous machined portion is formed by cutting out an angular portion between the helical groove and the connecting way of the nut.

摘要翻译： 滚珠丝杠装置包括螺杆轴，螺母和多个滚珠。 第一螺旋槽形成在螺杆轴的外周面。 在螺母的内周面形成第二螺旋槽。 球的滚动接触方式由第一螺旋槽和彼此面对的第二螺旋槽限定。 在螺母上设置由用于连接一部分的管和滚动接触方式的另一部分形成的连接方式。 无缝连接电路由连接方式和滚动接触方式定义。 每个滚珠都是循环地布置在电路中。 通过切割螺旋槽和螺母的连接方式之间的角部形成平滑连续的加工部。