OVERLOAD IMPACT-RESISTANT PLANETARY REDUCER, ROBOT JOINT, AND QUADRUPED ROBOT

    公开(公告)号:US20240133454A1

    公开(公告)日:2024-04-25

    申请号:US18269430

    申请日:2021-11-30

    摘要: The present application discloses an overload impact-resistant planetary reducer, including a tooth face portion made of a rigid material and a buffer portion capable of being elastically deformed. The buffer portion is made of a material having certain rigidity and capable of being elastically deformed under an impact force, and is coaxially nested with the tooth face portion to form a reducer component capable of preventing overload impact. The planetary reducer is capable of being elastically deformed under the impact force, effectively absorbing energy during overload impact, thus protecting transmission parts such as gears. The structure is simple and practical. The present application further discloses an overload impact-resistant planetary reducer, a robot joint and a quadruped robot.

    FLEXIBLE EXTERNAL GEAR, WAVE REDUCER, AND ROBOT

    公开(公告)号:US20230160462A1

    公开(公告)日:2023-05-25

    申请号:US17989750

    申请日:2022-11-18

    发明人: Taihei TSUBONE

    IPC分类号: F16H49/00 F16H55/14 B25J9/10

    摘要: A gear includes a tubular portion and a diaphragm portion. The diaphragm portion extends in a direction including a radial component from one axial end portion of the tubular portion. The portion includes a first portion and a second portion. The first portion is on one axial side of the portion. The second portion is on another axial side relative to the first portion. The second portion includes teeth protruding radially outward. A maximum value of a thickness of the diaphragm portion is equal to or less than twice a distance from radially outer ends of the teeth to a radially inner surface of the second portion, and a minimum value of a thickness of the first portion is equal to or less than half the maximum value of the thickness of the diaphragm portion.

    Resin gear
    4.
    发明授权

    公开(公告)号:US11549576B2

    公开(公告)日:2023-01-10

    申请号:US16972617

    申请日:2018-06-21

    IPC分类号: F16H55/06 F16H55/14 F16H55/17

    摘要: A space and an elastic member have a first part where a distance between an outer peripheral surface of a metal bush and an inner peripheral surface of a resin member is a first distance, a second part where the distance between the outer peripheral surface and the inner peripheral surface is a second distance different from the first distance, and a third part where the distance between the outer peripheral surface and the inner peripheral surface is a third distance different from the first distance in a cross section along a radial direction of a resin gear. The first part is provided between the second part and the third part in an axial direction of the resin gear.

    GEAR HOUSING FOR A PLANETARY GEAR DEVICE THAT STRUCTURALLY ISOLATES AN INNER GEAR

    公开(公告)号:US20220186825A1

    公开(公告)日:2022-06-16

    申请号:US17653482

    申请日:2022-03-04

    摘要: Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

    Gear housing for a planetary gear device that structurally isolates an inner gear

    公开(公告)号:US11156286B2

    公开(公告)日:2021-10-26

    申请号:US16945779

    申请日:2020-07-31

    摘要: Separate structural units for an inner gear and a housing of a planetary gear device include an inner gear with a first raised portion formed on the outer peripheral surface of the inner gear, where the first raised portion extends towards in a direction that is inclined with respect to the axial direction of the inner gear. A housing includes a second raised portion formed on an inner peripheral surface, where the second raised portion extends in a direction that is inclined in respect to the axial direction. The housing contains the inner gear such that there is a gap formed between the inner peripheral surface of the housing and the outer peripheral surface of the inner gear. Movement of the inner gear within the interior of the housing is limited through linear contact of the first raised portion and the second raised portion.

    Polymeric gear
    9.
    发明授权

    公开(公告)号:US10948067B2

    公开(公告)日:2021-03-16

    申请号:US16108160

    申请日:2018-08-22

    摘要: A transmission includes an input drive shaft, a drive gear, an idler gear, and a driven gear. The drive gear is rotationally fixed to the input drive shaft which, in turn, may but not necessarily, be powered by an engine. The idler gear may include a second set of gear teeth mounted to a bearing wherein the second set of gear teeth are formed from polymeric material. The second set of gear teeth for the idler gear may be in meshing engagement with the first set of gear teeth. The driven gear may include a third set of gear teeth in meshing engagement with the second set of gear teeth. The driven gear may be rotationally fixed to a pump shaft for a transmission pump. The input drive shaft, the drive gear, the idler gear, and the driven gear are configured to power a transmission pump.

    Roller pinions for driving an aircraft wheel in rotation

    公开(公告)号:US10738871B2

    公开(公告)日:2020-08-11

    申请号:US15939121

    申请日:2018-03-28

    摘要: A roller pinion for rotating about a central axis generally includes a core having an axial bore at its center for mounting on a drive shaft and recesses extending the length of the core. The recesses define faces with a plurality of regularly distributed sectors extending between them. The roller pinion also includes a cage associated with a plurality of rollers. The cage extends around the outer peripheral surface of the core, and presents, facing the outer peripheral surface of the core, a concentric spherical inner surface that faces the recesses of the core. Protuberances are provided that extend into the recesses. The protuberances have faces positioned parallel to and facing the faces of the recesses. Metal strips arranged in bundles with elastomer material interposed between the strips are inserted in a space between the respective faces of one recess in the core and one protuberance of the cage.