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1. 发明授权

US10359102B2 Friction roller-type reduction gear 有权
公开(公告)号：US10359102B2
公开(公告)日：2019-07-23
申请号：US15562315
申请日：2016-02-24
申请人： NSK LTD.
发明人： Hiroshi Kawahara , Hiroyasu Yoshioka , Tetsu Takehara , Yuji Shimomura
IPC分类号： F16H13/04 , F16H13/08 , F16H13/14
摘要： A friction roller-type reduction gear includes a sun roller concentric with an input shaft, a ring roller having a stationary ring roller element and a moveable ring roller element, intermediate rollers in rolling contact with an outer peripheral surface of the sun roller and an inner peripheral surface of the ring roller, a coupling part coupling the ring roller and the output shaft, and a loading cam mechanism having a cam ring for changing contact surface pressure of each rolling contact surface. The outer surface of the sun roller is a concave curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped concave curve, and an outer surface of the intermediate roller is a convex curved surface of which a shape of an outer edge in an axial cross-section is a single circular arc-shaped convex curve.

2. 发明申请

US20170227111A1 ROTATION TRANSMISSION DEVICE 审中-公开
公开(公告)号：US20170227111A1
公开(公告)日：2017-08-10
申请号：US15436996
申请日：2017-02-20
申请人： NSK LTD.
发明人： Yasuyuki MATSUDA , Daisuke Gunji , Masafumi Hikida , Kazutaka Tanaka , Tooru Ueda , Tetsu Takehara , Tomoharu Saito , Hiroyasu Yoshioka , Yuka Kaneko
IPC分类号： F16H57/00 , F16C19/36 , G01L3/10 , F16C33/58 , F16C33/66 , F16F15/121 , F16C19/46
CPC分类号： F16H57/0037 , F16C19/364 , F16C19/463 , F16C33/581 , F16C33/6677 , F16C2361/65 , F16F15/1216 , F16H2059/147 , G01L3/101 , G01L3/104 , G01L3/105 , G01L3/109
摘要： A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).

3. 发明授权

US10480635B2 Rotation transmission device 有权
公开(公告)号：US10480635B2
公开(公告)日：2019-11-19
申请号：US15436996
申请日：2017-02-20
申请人： NSK LTD.
发明人： Yasuyuki Matsuda , Daisuke Gunji , Masafumi Hikida , Kazutaka Tanaka , Tooru Ueda , Tetsu Takehara , Tomoharu Saito , Hiroyasu Yoshioka , Yuka Kaneko
IPC分类号： G01L3/00 , F16H57/00 , G01L3/10 , F16C33/66 , F16C19/36 , F16C19/46 , F16C33/58 , F16F15/121 , F16H59/14
摘要： A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).

4. 发明申请

US20160195183A1 ROTATION TRANSMISSION DEVICE 审中-公开
标题翻译：旋转传动装置
公开(公告)号：US20160195183A1
公开(公告)日：2016-07-07
申请号：US14901063
申请日：2013-11-08
申请人： NSK LTD.
发明人： Yasuyuki MATSUDA , Daisuke Gunji , Masafumi Hikida , Kazutaka Tanaka , Tooru Ueda , Tetsu Takehara , Tomoharu Saito , Hiroyasu Yoshioka , Yuka Kaneko
IPC分类号： F16H57/00 , G01L3/10
CPC分类号： F16H57/0037 , F16C19/364 , F16C19/463 , F16C33/581 , F16C33/6677 , F16C2361/65 , F16F15/1216 , F16H2059/147 , G01L3/101 , G01L3/104 , G01L3/105 , G01L3/109
摘要： A rotation transmission device having a high torque measurement resolution is provided. The rotation transmission device is provided with: a rotary-shaft unit (6) having a first and second rotary shaft (13, 14) combined so as to be coaxial and such that the end sections thereof can rotate relative to each other and a torsion bar (15) that is provided on the inner-diameter side of the first and second rotary shafts so as to be coaxial therewith, has one end section connected to the first rotary shaft (13), and has the other end section connected to the second rotary shaft (14); a first gear (7) fastened to the outer peripheral surface of the first rotary shaft (13); a second gear (8) fastened to the outer peripheral surface of the second rotary shaft (14); a coupling shaft (9) provided on the inner-diameter side of the torsion bar (15) so as to be coaxial therewith, having one end section connected to one rotary shaft (13), and having the other end section protruding from an end of the torsion bar (15) in the axial direction; a first encoder disposed and fixed on the other end of the coupling shaft (9) so as to be coaxial with the first rotary shaft (13) and having a first detected section (39); a second encoder fastened on the other end of the second rotary shaft (14) so as to be close to the first encoder and having a second detected section (40); and a sensor unit having at least one sensor (42a, 42b) that faces the first and second detected sections (39, 40).
摘要翻译：提供具有高扭矩测量分辨率的旋转传递装置。旋转传递装置设置有：具有第一和第二旋转轴（13,14）的旋转轴单元（6），该第一和第二旋转轴（13,14）组合成同轴的，并且使得其端部部分能够相对于彼此旋转，设置在第一和第二旋转轴的内径侧以与其同轴的杆（15）具有连接到第一旋转轴（13）的一个端部，并且另一个端部连接到第二旋转轴（14）; 固定到第一旋转轴（13）的外周面的第一齿轮（7）; 固定到第二旋转轴（14）的外周表面的第二齿轮（8）; 设置在扭杆（15）的内径侧以与其同轴的联接轴（9），其一端部连接到一个旋转轴（13），并且另一端部从端部的扭杆（15）在轴向上; 第一编码器，设置并固定在所述联结轴（9）的另一端，以与所述第一旋转轴（13）同轴并具有第一检测部分（39）; 固定在所述第二旋转轴（14）的另一端以便靠近所述第一编码器并具有第二检测部分（40）的第二编码器; 以及传感器单元，其具有面向所述第一和第二检测部分（39,40）的至少一个传感器（42a，42b）。

5. 发明授权

US09625332B2 Torque measurement device-equipped rotation transmission apparatus 有权
公开(公告)号：US09625332B2
公开(公告)日：2017-04-18
申请号：US14916668
申请日：2014-09-03
申请人： NSK Ltd.
发明人： Tomoharu Saito , Yasuyuki Matsuda , Daisuke Gunji , Masafumi Hikida , Kazutaka Tanaka , Tohru Ueda , Yuka Kaneko , Tetsu Takehara , Hiroyasu Yoshioka
IPC分类号： G01L3/10 , G01L25/00
CPC分类号： G01L3/104 , G01L3/101 , G01L3/109 , G01L25/003
摘要： 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.

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