公开(公告)号：US08925413B2

公开(公告)日：2015-01-06

申请号：US13816912

申请日：2011-07-27

申请人： Kotaro Kawai ,  Harutaka Tsuiki ,  Masanori Yoshino ,  Kunio Takano

发明人： Kotaro Kawai ,  Harutaka Tsuiki ,  Masanori Yoshino ,  Kunio Takano

IPC分类号： F16H25/22

CPC分类号： F16H25/2214 ,  Y10T74/19749 ,  Y10T74/19767

摘要： The rolling element screw device includes: a screw shaft having a rolling element raceway groove; a nut member, which has a loaded rolling element raceway groove opposed to the rolling element raceway groove and is threadingly engaged with the screw shaft through intermediation of the rolling elements; and the circulation component, which includes a pair of the first circulating portions passing through a peripheral wall of the nut member, and the second circulating portion coupling the pair of first circulating portions together, to thereby form the endless circulation path for the rolling elements. Each of the first circulating portions includes a first cylindrical portion fitted into a circulation component mounting hole of the nut member, and a second cylindrical portion which has an outer diameter larger than an outer diameter of the first cylindrical portion. The first cylindrical portion includes a rolling element introducing hole.

摘要翻译： 滚动体螺纹装置包括：具有滚动体滚道槽的螺杆轴; 螺母构件，其具有与滚动元件滚道槽相对的负载滚动元件滚道槽，并且通过滚动元件与螺纹轴螺纹接合; 以及包括一对通过螺母构件的周壁的第一循环部的循环构件和将一对第一循环部联接在一起的第二循环部，从而形成用于滚动体的循环循环路径。 每个第一循环部分包括装配在螺母构件的循环构件安装孔中的第一圆柱形部分和具有大于第一圆柱形部分的外径的外径的第二圆柱形部分。 第一圆筒部包括滚动体导入孔。

公开(公告)号：US20130139629A1

公开(公告)日：2013-06-06

申请号：US13816912

申请日：2011-07-27

申请人： Kotaro Kawai ,  Harutaka Tsuiki ,  Masanori Yoshino ,  Kunio Takano

发明人： Kotaro Kawai ,  Harutaka Tsuiki ,  Masanori Yoshino ,  Kunio Takano

IPC分类号： F16H25/22

CPC分类号： F16H25/2214 ,  Y10T74/19749 ,  Y10T74/19767

摘要： The rolling element screw device includes: a screw shaft having a rolling element raceway groove; a nut member, which has a loaded rolling element raceway groove opposed to the rolling element raceway groove and is threadingly engaged with the screw shaft through intermediation of the rolling elements; and the circulation component, which includes a pair of the first circulating portions passing through a peripheral wall of the nut member, and the second circulating portion coupling the pair of first circulating portions together, to thereby form the endless circulation path for the rolling elements. Each of the first circulating portions includes a first cylindrical portion fitted into a circulation component mounting hole of the nut member, and a second cylindrical portion which has an outer diameter larger than an outer diameter of the first cylindrical portion. The first cylindrical portion includes a rolling element introducing hole.

摘要翻译： 滚动体螺纹装置包括：具有滚动体滚道槽的螺杆轴; 螺母构件，其具有与滚动元件滚道槽相对的负载滚动元件滚道槽，并且通过滚动元件与螺纹轴螺纹接合; 以及包括一对通过螺母构件的周壁的第一循环部的循环构件和将一对第一循环部联接在一起的第二循环部，从而形成用于滚动体的循环循环路径。 每个第一循环部分包括装配在螺母构件的循环构件安装孔中的第一圆柱形部分和具有大于第一圆柱形部分的外径的外径的第二圆柱形部分。 第一圆筒部包括滚动体导入孔。