公开(公告)号：EP1677031A1

公开(公告)日：2006-07-05

申请号：EP04787647.9

申请日：2004-09-06

申请人： THK CO., LTD.

发明人： TERAMACHI, Akihiro; ,  MICHIOKA, Hidekazu; ,  NIWA, Hiroshi; ,  NISHIMURA, Kentaro;

IPC分类号： F16H25/22

CPC分类号： F16H25/2247 ,  F16C33/3706 ,  F16H25/2214 ,  F16H25/2238 ,  F16H2025/2271 ,  Y10T74/19749 ,  Y10T74/19777

摘要： A roller screw includes: a screw shaft 1 having an outer peripheral surface in which a spiral roller rolling groove 1a is formed; a nut member 2 having an inner peripheral surface in which a spiral loaded roller rolling groove 2a is formed so as to oppose to the roller rolling groove 1a; a return pipe 4 connecting one and another ends of a loaded roller rolling groove 2a of the nut member 2; and a plurality of rollers 6 disposed in the loaded roller rolling passage 3 and the return pipe 4. A spacer 31 is disposed between a pair of adjacent rollers 6, 6 so as to prevent the paired rollers 6, 6 from contacting each other. According to such roller screw, the rollers can be smoothly circulated without causing any skew.

摘要翻译： 滚轴螺杆包括：螺杆轴1，其具有其中形成螺旋滚轴滚动槽1a的外周表面; 具有内周面的螺母构件2，在该内周面形成有螺旋状的负载滚子滚动槽2a，以与滚子滚动槽1a相对; 连接螺母构件2的负载滚子滚动槽2a的一端和另一端的返回管4; 以及设置在负载滚子滚动通道3和返回管4中的多个滚子6.间隔件31设置在一对相邻滚子6和6之间，以防止成对滚子6和6彼此接触。 根据这种滚柱丝杠，滚子可以平滑地循环而不会产生任何歪斜。