公开(公告)号：US20240337305A1

公开(公告)日：2024-10-10

申请号：US18734736

申请日：2024-06-05

Applicant: NABTESCO CORPORATION

Inventor： Kazuyoshi MAKISUMI

IPC: F16H1/32 ,  F16H57/032 ,  F16H57/08

CPC classification number: F16H1/32 ,  F16H57/032 ,  F16H57/08 ,  F16H2001/325 ,  F16H2057/085

Abstract: A speed reducer relating to one aspect of the present disclosure includes: an internal gear having a casing and a plurality of outer pins, where the casing surrounds a main axis, and the outer pins are rotatably arranged in pin grooves provided on an inner periphery of the casing; an external gear meshing with the internal gear; an eccentric body for oscillating the external gear; a carrier rotatable relative to the casing; and a main bearing having an inner sliding surface and an outer sliding surface, where the inner sliding surface is rotatable integrally with the casing, and the outer sliding surface is rotatable integrally with the carrier. One of the inner and outer sliding surfaces is made of resin, and the other of the inner and outer sliding surfaces is made of a thermally conductive material that is more wear-resistant than the resin.

公开(公告)号：US12031612B2

公开(公告)日：2024-07-09

申请号：US17590552

申请日：2022-02-01

Applicant: NABTESCO CORPORATION

Inventor： Kazuyoshi Makisumi

IPC: F16H1/32 ,  F16H57/032 ,  F16H57/08

CPC classification number: F16H1/32 ,  F16H57/032 ,  F16H57/08 ,  F16H2001/325 ,  F16H2057/085

Abstract: A speed reducer relating to one aspect of the present disclosure includes: an internal gear having a casing and a plurality of outer pins, where the casing surrounds a main axis, and the outer pins are rotatably arranged in pin grooves provided on an inner periphery of the casing; an external gear meshing with the internal gear; an eccentric body for oscillating the external gear; a carrier rotatable relative to the casing; and a main bearing having an inner sliding surface and an outer sliding surface, where the inner sliding surface is rotatable integrally with the casing, and the outer sliding surface is rotatable integrally with the carrier. One of the inner and outer sliding surfaces is made of resin, and the other of the inner and outer sliding surfaces is made of a thermally conductive material that is more wear-resistant than the resin.

公开(公告)号：US11920657B2

公开(公告)日：2024-03-05

申请号：US17897105

申请日：2022-08-26

Applicant: MINTROBOT CO., LTD.

Inventor： Hyeong Seok Kang ,  Soon Bin Hong

IPC: F16H1/32 ,  F16H55/10 ,  F16H57/021

CPC classification number: F16H1/32 ,  F16H55/10 ,  F16H57/021 ,  F16H2001/325 ,  F16H2001/327

Abstract: A cycloidal reducer includes a reduction unit configured to reduce a torque input and an output unit configured to transfer the reduced output to the outside. A cycloidal rotor that is one constituent element of the reduction unit has a tooth-type protrusion formed in the shape of a circular arc. Thus, the level of difficulty of process is decreased more than when the tooth-type protrusion in the related art is formed in the shape of a broken line. In addition, rotor pins are accommodated in through-holes, respectively, that are equally spaced in the cycloidal rotor. A bushing is formed that fills a gap between the through-hole and the rotor pin is formed in order for the rotor pin to stably transfer rotational power. Accordingly, the advantage of effectively distributing a load and stably transferring a reduction torque to the outside is provided.

公开(公告)号：US20230167880A1

公开(公告)日：2023-06-01

申请号：US17995470

申请日：2021-09-28

Applicant: Robert Bosch GmbH

Inventor： Matthias Lauermann ,  Christoph Oehler ,  Sebastian Martin Reichert

IPC: F16H1/32

CPC classification number: F16H1/32 ,  F16H2001/323 ,  F16H2001/325

Abstract: An eccentric gear unit for a braking force generator. The eccentric gear unit includes an input shaft with an eccentric, which input shaft can be rotated about an axis of rotation, wherein the eccentric is mounted in a central hole of a cam which rolls on a ring gear, and wherein the cam is coupled to an output shaft which is coaxial with the input shaft, via coupling arrangement which includes at least one pin which engages in an opening of the cam. A braking force generator having an eccentric gear unit is also provided.

公开(公告)号：US20180355952A1

公开(公告)日：2018-12-13

申请号：US15993704

申请日：2018-05-31

Applicant: DENSO CORPORATION

Inventor： Yukihiro HONDA ,  Soichi KINOUCHI

IPC: F16H1/32

CPC classification number: F16H1/32 ,  F16H55/088 ,  F16H2001/325

Abstract: Each of an external tooth-bottom surface and an external bottom-side contact surface has a cross-sectional shape formed by a hypocycloid curved line. An external front-side contact surface has a cross-sectional shape formed by an epicycloid curved line. An external tooth-front surface is formed at a radial-inside position of a reference epicycloid curved line, that is, a position closer to a first pitch circle of an external gear. A possible contact between a tooth-front portion of the external gear and a tooth-front portion of an internal gear can be avoided. A connecting point between the external tooth-front surface and the external front-side contact surface is located at such a position that a contact surface length of an external tooth-contact surface is larger than twenty percent of a total tooth surface of the external gear.

公开(公告)号：US20180287455A1

公开(公告)日：2018-10-04

申请号：US15936528

申请日：2018-03-27

Applicant: Nidec Tosok Corporation

Inventor： Yutaka UEMATSU ,  Kazumi SHINKAI ,  Shuichi KINJO

IPC: H02K5/22 ,  H02K7/116 ,  H02K11/215 ,  H02K11/33 ,  F16H1/32 ,  F16H57/02

CPC classification number: H02K5/225 ,  F16H1/32 ,  F16H57/02 ,  F16H2001/325 ,  F16H2057/02034 ,  H02K7/116 ,  H02K11/215 ,  H02K11/33 ,  H02K11/38 ,  H02K2211/03

Abstract: An electric actuator includes a motor, a speed reduction mechanism, a case, an output portion, a first board, a rotation detection device that detects rotation of the output portion, a connector portion, a first wiring member electrically connected to electrical wiring via the connector portion, and a second wiring member electrically connected to the rotation detection device. The case includes a first case and a second case. The first board is accommodated in the first case. The rotation detection device is accommodated in the second case. The first wiring member includes a first connecting portion held in the first case. The second wiring member includes a second connecting portion held in the second case. The first connecting portion is exposed on one side in the axial direction of the first case. The second connecting portion is exposed on the other side in the axial direction of the second case.

公开(公告)号：US09939049B2

公开(公告)日：2018-04-10

申请号：US15147160

申请日：2016-05-05

Applicant: TERAFORCE Precision Technology Co., Ltd.

Inventor： Te-En Liu

IPC: F16H3/70 ,  F16H57/04

CPC classification number: F16H3/70 ,  F16H1/32 ,  F16H57/0484 ,  F16H2001/325

Abstract: A speed change device is provided, including: an outer ring part, an interior thereof including at least one outer gear; a spindle, coaxially pivoted to the outer ring part with the at least one outer gear, having a central axis, an outer circumference of the spindle having a plurality of cam assembling portions; a plurality of cam parts, respectively disassemblably assembled to the plurality of cam assembling portions, synchronizingly rotating with the spindle, at least two of the plurality of cam parts having a phase difference of angle which is larger than zero degree; a plurality of inner gears, being rigid, respectively sleeved on the plurality of cam parts and being non-rotatable with the plurality of the cam parts, respectively meshed with the at least one outer gear.

公开(公告)号：US09903442B2

公开(公告)日：2018-02-27

申请号：US14772601

申请日：2014-02-26

Applicant: NABTESCO CORPORATION

Inventor： Hiroki Mizuhashi ,  Kazuma Oishi

IPC: F16H1/32

CPC classification number: F16H1/32 ,  F16H2001/325

Abstract: A driving device is provided with a first supporting member disposed in one direction along a rotation axis of a rotated member, and a second supporting member disposed in the other direction. The first supporting member is provided with a first case and a first supporting shaft. The first supporting shaft passes through a first through hole of the first case. The second supporting member is provided with a second case and a second supporting shaft. The second supporting shaft passes through a second through hole of the second case. Only one first bearing is disposed between the first case and the first supporting shaft. Only one second bearing is disposed between the second case and the second supporting shaft.

公开(公告)号：US20170095934A1

公开(公告)日：2017-04-06

申请号：US15128034

申请日：2015-03-19

Applicant: NABTESCO CORPORATION

Inventor： Hongyou WANG ,  Yoshiaki MAKIZOE ,  Hideshi SHIMADA

IPC: B25J17/02 ,  B25J9/10

CPC classification number: B25J17/0241 ,  B25J9/102 ,  F16H1/32 ,  F16H2001/325 ,  Y10S901/25 ,  Y10S901/28

Abstract: A joint mechanism includes: a first member; a second member that includes a first portion and second portion; a gear device including a crank shaft on which a first eccentric portion is formed, a first oscillating gear that has first external teeth and a first insertion hole, a carrier that retains the crank shaft, and an external cylinder that has internal-tooth pins. The carrier and the external cylinder are configured to be displaced coaxially due to oscillation of the first oscillating gear. The joint mechanism further includes a first fixing member that fixes the external cylinder to the first member, and a second fixing member that fixes the carrier to the second member. The second fixing member includes a one-side fixing member that fixes the carrier to the first portion and an other-side fixing member that fixes the carrier to the second portion.

公开(公告)号：US20160333965A1

公开(公告)日：2016-11-17

申请号：US15112404

申请日：2014-04-22

Applicant: NOVITRANS AUTOMATIC CO., LTD.

Inventor： Xihe Shen

IPC: F16H1/32 ,  F16H57/08

CPC classification number: F16H1/32 ,  F16D37/008 ,  F16D37/02 ,  F16H37/0833 ,  F16H57/08 ,  F16H2001/323 ,  F16H2001/325 ,  F16H2057/087

Abstract: A magneto-rheological servo speed regulator-reducer comprises a power output shaft, a planetary gear (2), an eccentric shaft (3), a left speed reduction main shaft (4), a pin gear housing (5), a cycloidal pin (6), a main bearing (7), a right speed reduction main shaft (8), a signal control line (9), a base housing (10), a clutch end plate (11), a coil iron core (12), an excitation coil (13), an input shaft bracket (14), an input bearing (15), a power input shaft (16), an input shaft oil seal (17), magneto-rheological fluid (18), a transmission clutch disc (19), a clutch cavity (20), a transmission oil seal (21), a clutch oil seal (22), an encoder (23), a transmission bearing (24), a cycloidal gear bearing (25), a cycloidal gear (26), a speed reduction main shaft oil seal (27), an eccentric bearing (28) and a transmission main shaft (29).

Abstract translation: 磁流变伺服调速减速器包括动力输出轴，行星齿轮（2），偏心轴（3），左减速主轴（4），销齿轮壳体（5），摆线销 （6），主轴承（7），右减速主轴（8），信号控制线（9），基座壳体（10），离合器端板（11），线圈铁芯 ），励磁线圈（13），输入轴支架（14），输入轴承（15），动力输入轴（16），输入轴油封（17），磁流变流体（18）， 传动离合器盘（19），离合器腔（20），变速箱油封（21），离合器油封（22），编码器（23），变速器轴承（24），摆线齿轮轴承 摆动齿轮（26），减速主轴油封（27），偏心轴承（28）和变速器主轴（29）。