公开(公告)号：US20170191552A1

公开(公告)日：2017-07-06

申请号：US15313167

申请日：2015-03-25

Applicant: NSK LTD.

Inventor： Hiroyasu YOSHIOKA ,  Yasuyuki MATSUDA ,  Kazutaka TANAKA ,  Takashi IMANISHI

IPC: F16H13/10 ,  F16H13/04 ,  F16H13/08

CPC classification number: F16H13/10 ,  F16H13/04 ,  F16H13/08

Abstract: A sun roller of a friction roller-type transmission includes a movable sun roller element (23) capable of moving in an axial direction. Furthermore, the sun roller is provided with a loading cam mechanism which is formed along the circumferential direction of an input shaft (12), the loading cam mechanism having a first cam surface (75), a second cam surface (77) arranged facing the first cam surface (75) and secured to the input shaft (12), rolling elements (63) held between the first and second cam surfaces (75, 77), and an annular holding device (51), and the loading cam mechanism axially displacing the movable sun roller element (23). The holding device (51) has an inside-diameter-surface guiding part (81) for positioning the holding device relative to the input shaft by being fitted over the input shaft, the guiding part being provided to the inside diameter surface.

公开(公告)号：US20240052915A1

公开(公告)日：2024-02-15

申请号：US18265810

申请日：2022-06-22

Applicant: NSK LTD.

Inventor： Ryo SEGAWA ,  Kazutaka TANAKA

IPC: F16H25/22 ,  F16H25/24

CPC classification number: F16H25/2214 ,  F16H25/24 ,  F16H2025/2075

Abstract: A ball screw device has: a screw shaft rotationally moving during use, a nut having a protruding non-rotating side engaging portion at an end portion on one side in an axial direction, the nut linearly moving during use, balls arranged between a shaft-side and nut-side grooves, and a driving member fixed to the screw shaft having an arc-shaped rotating-side engaging groove portion into which the non-rotating side engaging portion can be inserted in the axial direction, and which can be engaged with the non-rotating side engaging portion in a circumferential direction.

公开(公告)号：US20160195442A1

公开(公告)日：2016-07-07

申请号：US14916668

申请日：2014-09-03

Applicant: NSK Ltd.

Inventor： Tomoharu SAITO ,  Yasuyuki MATSUDA ,  Daisuke GUNJI ,  Masafumi HIKIDA ,  Kazutaka TANAKA ,  Tohru UEDA ,  Yuka KANEKO ,  Tetsu TAKEHARA ,  Hiroyasu YOSHIOKA

IPC: G01L3/10

CPC classification number: G01L3/104 ,  G01L3/101 ,  G01L3/109 ,  G01L25/003

Abstract: In order to implement a structure capable of improving the resolution of torque measurement while preventing the plastic deformation of a torsion bar (15), an input-side stopper (61) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an input-side rotating body (55) that includes an input shaft (13) and an input gear (7), and an output-side stopper (63) having an uneven shape (gear shape) in the circumferential direction is provided in a portion of an output-side rotating body (56) that includes an output shaft (14) and an output gear (8). The input-side stopper (61) and the output-side stopper (63) are combined so as to be engaged to be able to transmit torque only when the torsional angle within the elastic range of the torsion bar (15) reaches a predetermined amount.

Abstract translation: 为了实现能够在防止扭杆（15）的塑性变形的同时提高转矩测量的分辨率的结构，在周向上具有不均匀形状（齿轮形状）的输入侧止动器（61）设置在 包括输入轴（13）和输入齿轮（7）的输入侧旋转体（55）的一部分和沿圆周方向具有不平坦形状（齿轮形状）的输出侧止动件（63） 设置在包括输出轴（14）和输出齿轮（8）的输出侧旋转体（56）的一部分中。 输入侧止动器（61）和输出侧止动器（63）被组合以仅在扭杆（15）的弹性范围内的扭转角达到预定量时才能够传递扭矩 。

公开(公告)号：US20160252168A1

公开(公告)日：2016-09-01

申请号：US15032493

申请日：2014-09-26

Applicant: NSK LTD.

Inventor： Kazutaka TANAKA ,  Yasuyuki MATSUDA

IPC: F16H13/08 ,  F16H25/18 ,  F16H13/14

CPC classification number: F16H13/08 ,  F16H13/14 ,  F16H25/186

Abstract: A friction roller type reduction gear includes a first sun roller so mounted on an input shaft movably in the axial direction of the input shaft, a plurality of first cam grooves formed in the end face of the first sun roller, a cam plate so mounted on the input shaft as is opposed to the first cam groove side of the first sun roller, a plurality of second cam grooves so formed in the cam plate as are opposed to the first cam grooves, rolling elements interposed between the first and second cam grooves, and a cage for holding the rolling elements rollably, while a pitch circle diameter of the position for holding the rolling elements is different from pitch circle diameter of the first and second cam grooves.

Abstract translation: 一种摩擦辊式减速机包括：第一太阳辊，其安装在输入轴上，该第一太阳辊沿输入轴的轴向可移动;多个第一凸轮槽，形成在第一太阳辊的端面;凸轮板，其安装在 所述输入轴与所述第一太阳辊的所述第一凸轮槽侧相对，在所述凸轮板上形成有与所述第一凸轮槽相对的多个第二凸轮槽，所述第二凸轮槽设置在所述第一和第二凸轮槽之间， 以及用于保持滚动元件的保持架，而用于保持滚动元件的位置的节圆直径不同于第一和第二凸轮槽的节圆直径。