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公开(公告)号:US10767744B2
公开(公告)日:2020-09-08
申请号:US16313718
申请日:2017-06-30
发明人: Roderick Kleiss
摘要: This anti-backlash gear includes a gear wheel and gear teeth. Each gear tooth comprises first and second flanks, a top face and a bottom face, wherein for each gear tooth each flank extends from the top face to the bottom face, wherein the gear teeth comprise a polymeric material which comprises a repeat unit of form I wherein t1, and w1 independently represent 0 or 1 and v1 represents 0, 1 or 2. For each gear tooth, at least one of said flanks comprises two or more surfaces arranged to form a single protrusion extending along the at least one said flank such that a tooth thickness of each gear tooth varies between the top face and the bottom face of said gear tooth in a direction parallel to an axis of rotation of the gearwheel in operation. In use, the single protrusion is elastically deformable so as to absorb backlash.
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公开(公告)号:US20200232550A1
公开(公告)日:2020-07-23
申请号:US16843746
申请日:2020-04-08
摘要: A toothed pulley P is made with a thermoplastic resin and includes a pulley body with an outer circumference along which teeth are arranged at a constant pitch. The pulley body is made of a resin composition containing a copolymer of nylon 6T and nylon 11 and glass fibers with a flat cross section.
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公开(公告)号:US10655716B2
公开(公告)日:2020-05-19
申请号:US16110218
申请日:2018-08-23
申请人: Kinematics, LLC
发明人: Kenneth D. Miller , Adam P. Plesniak , Kyle Zech , Mark Henderson
IPC分类号: F16H1/46 , F16H37/04 , F16H19/00 , F24S30/425 , E02F9/12 , F16H57/02 , F16H57/01 , F16H19/02 , F16H55/22 , G01D5/14 , F16C17/10 , F16H1/16 , F16H57/021 , F16H57/00 , F16H55/06 , F16H57/039
摘要: A slew drive comprises a worm gear which is integrated with a reducer assembly. One end of the worm gear operates as a carrier which engages a plurality of planetary gears which are part of the reducer assembly. The carrier may be a separate component that is coupled with the worm gear. Alternatively, one end of the worm gear can be machined to operate as the carrier. The carrier engages a plurality of planetary gears via a plurality of holes.
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44.
公开(公告)号:US10576673B2
公开(公告)日:2020-03-03
申请号:US16086527
申请日:2017-02-22
申请人: ENPLAS CORPORATION
发明人: Kazuyuki Sakamaki , Tetsuya Tokiwa
摘要: A resin gear includes a web with a side surface on which a first annular rib and a second annular rib are formed to be concentric with a boss. The web has an inner web portion coupling the first annular rib to the second annular rib, and an outer web portion coupling the second annular rib to a rim. The inner web portion is formed to have a thickness gradually reduced from one intersection point toward another intersection point, the intersection points being intersection points of a virtual radial direction line passing through a center of the boss with the second annular rib. The first annular rib has a side surface on which only one gate mark of an injection molding is formed at a position on a radially outer side with respect to a first tooth portion and a position biased to the other intersection point on the virtual radial direction line.
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公开(公告)号:US20200063848A1
公开(公告)日:2020-02-27
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.
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公开(公告)号:US20200025279A1
公开(公告)日:2020-01-23
申请号:US16514213
申请日:2019-07-17
发明人: Wei Hu , Shane Lewis , Bruce D. Hansen , Bryan Kenneth Baskin
摘要: A hybrid gear includes a first portion having a plurality of first engagement features formed from a first material and having a first stiffness and a second portion having a plurality of second engagement features in intermeshing arrangement with the plurality of first engagement features. The plurality of second engagement features is formed from a second material distinct from the first material and having a second stiffness. The first stiffness of the plurality of first engagement features is within 20% of the second stiffness of the plurality of second engagement features.
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公开(公告)号:US20200016688A1
公开(公告)日:2020-01-16
申请号:US16032880
申请日:2018-07-11
发明人: Daniel J. Wilson , Huaxin Li , Jianghuai Yang , James D. Cremonesi , Qigui Wang
摘要: A composite metal flexplate is disclosed that includes an aluminum center plate and a steel ring gear joined to the aluminum center plate by a solid-state joint. The solid-state joint that joins together the aluminum center plate and the steel ring gear may be formed by friction welding. During the friction welding process, a surface of an annular body of the steel ring gear is preheated, followed by bringing the preheated surface of the annular body into contact with a surface of a periphery of a circular body of the aluminum center plate. The two contacting surfaces are then caused to experience relative rotational contacting movement, which generates frictional heat therebetween and softens adjacent regions of the steel ring gear and the aluminum center plate. Once this occurs, an applied force is administered to compress and forge the contacting surfaces together, thereby establishing the solid-state joint.
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48.
公开(公告)号:US20190352762A1
公开(公告)日:2019-11-21
申请号:US16305519
申请日:2017-05-31
IPC分类号: C23C8/22 , C21D9/32 , C21D1/06 , C21D8/06 , C21D9/52 , C22C38/28 , C22C38/26 , C22C38/22 , C22C38/04 , C22C38/02 , C22C38/00 , C22C38/06 , C23C8/02 , C23C8/80 , F16H55/06
摘要: A case hardening steel suitable as raw material for producing a mechanical structural part having high rotating bending fatigue strength and pitting fatigue strength at relatively low cost and a method of producing the case hardening steel are provided. A case hardening steel comprises a chemical composition containing, in mass %, C, Si, Mn, P, S, Cr, Mo, Al, N, and O in a predetermined relationship, with a balance being Fe and inevitable impurities, wherein √I≤80 (where I denotes an area (μm2) of an oxide-based inclusion located in a fish eye central portion at a fracture surface after subjecting the case hardening steel to carburizing-quenching and tempering and then performing a rotating bending fatigue test).
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公开(公告)号:US10451174B2
公开(公告)日:2019-10-22
申请号:US15658798
申请日:2017-07-25
发明人: Masaaki Sakata
摘要: A robot includes a first member, a second member provided to be capable of turning with respect to the first member, and a gear device configured to transmit a driving force from one side to the other side of the first member and the second member. The gear device includes internal teeth and external teeth provided halfway in a transmission path of the driving force and configured to mesh with each other and lubricant disposed between the internal teeth and the external teeth. An average grain size of a constituent material of the external teeth is smaller than an average grain size of a constituent material of the internal teeth.
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50.
公开(公告)号:US20190264793A1
公开(公告)日:2019-08-29
申请号:US16411681
申请日:2019-05-14
发明人: Tobias HERTTER , Hakan SAHIN
摘要: A gear pair including at least one first gear with a microstructure and at least one additional gear is provided. The first gear has first teeth with first tooth flanks and the additional gear has additional teeth with additional tooth flanks. In order to transfer power from the first gear to the additional gear, a first tooth flank contacts an additional tooth flank on an imaginary tangential plane which touches both tooth flanks in a contact point. The addition of the speeds of the two tooth flanks in the contact point on the tangential plane produces a sum speed. The microstructure is designed as a depression on the first tooth flank and runs at least partly along a structure line on the first tooth flank, and the structure line is touched by a structure tangent in the contact point. The structure tangent lies on the tangential plane.
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