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公开(公告)号：US20240352977A1
公开(公告)日：2024-10-24
申请号：US18685716
申请日：2022-08-10
申请人： NTN CORPORATION
发明人： Taku ITAGAKI
IPC分类号： F16D3/205
CPC分类号： F16D3/2055
摘要： In a tripod type constant velocity universal joint 1 of a double roller type, a carbon content in a core portion of a tripod member 3 is set to 0.23 to 0.44%, and a hardened layer 16 of a carburized layer is provided on the surface of a leg shaft 32. A first region P having a radius of curvature Ra in a cross section in a direction orthogonal to a joint axial direction including an axial line of the leg shaft 32 and a second region Q having a radius of curvature Rb in a cross section in the joint axial direction including the axial line of the leg shaft 32 are provided in an intermediate portion 33 provided between a body portion 31 of the tripod member 3 and the leg shaft 32. Ra>Rb is set.
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公开(公告)号：US12013053B2
公开(公告)日：2024-06-18
申请号：US17297970
申请日：2020-12-28
申请人： Chun Kuen Sze
发明人： Chun Kuen Sze
CPC分类号： F16K31/53 , F16D3/205 , F16K31/055
摘要： The present disclosure relates to the technical field of pipeline equipment, and discloses a transmission part, a valve drive assembly and a valve. The valve drive assembly includes a first transmission part, a second transmission part and a driving part, the first transmission part is configured to be detachably connected with the rotating shaft of the valve; the second transmission part is in transmission connection with the first transmission part, and can move in an axial direction of the rotating shaft relative to the first transmission part; the driving part is used to drive the second transmission part to rotate so as to drive the first transmission part and the rotating shaft of the valve to rotate. With the application of the valve drive assembly of the present disclosure, even if the rotating shaft moves axially in the process of rotation, the first transmission part moves therewith, and can always maintain cooperation with the second transmission part, thus realizing the transmission between the two. Therefore, the valve drive assembly can be adapted to the axial displacement of the rotating shaft, and has better adaptability. The transmission part provided in the present disclosure can be applied to the above-mentioned valve drive assembly. The valve provided in the present disclosure includes the valve drive assembly described above.
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公开(公告)号：US20230358280A1
公开(公告)日：2023-11-09
申请号：US17735559
申请日：2022-05-03
IPC分类号： F16D3/205
CPC分类号： F16D3/2055 , F16D2003/2026
摘要： A constant velocity joint includes an inner race having a main body defining a central opening. The constant velocity joint also includes a shaft member extending through the central opening, wherein the shaft member is staked to the inner race to axially retain the shaft member to the inner race.
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公开(公告)号：US11781599B2
公开(公告)日：2023-10-10
申请号：US17207791
申请日：2021-03-22
发明人： Yusuke Hibino , Masayoshi Nakamura
CPC分类号： F16D3/2055 , F16D2003/2026 , Y10S464/905
摘要： An inner member of a constant velocity joint includes holding portions that hold roller assemblies. Each of the holding portions includes a first orthogonal part and a second orthogonal part brought into contact with an inner roller of the roller assembly. When first and second transmission shafts are coaxially disposed, top parts of the first and second orthogonal parts are brought into contact with the inner circumferential wall of the inner roller. The first and second orthogonal parts are each sectioned into a first curved surface extending from the proximal end of the holding portion to the top part and a second curved surface extending from the top part to the distal end of the holding portion. The curvature radius of the second curved surfaces is larger than the curvature radius of the first curved surfaces.
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公开(公告)号：US11655857B2
公开(公告)日：2023-05-23
申请号：US16875582
申请日：2020-05-15
发明人： Keishi Kobata , Yosei Ando
CPC分类号： F16D3/2055 , F16D2003/2023 , F16D2003/2026 , Y10S464/905
摘要： A tripod constant-velocity joint including: an inner ring; three trunnions protruding from the inner ring; three roller units supported by the trunnions; and an outer ring storing the roller units. Each roller unit includes: an inner roller that is in contact with a convex outer-circumferential surface of the corresponding trunnion at a tangent point; an outer roller supported by the inner roller through rolling elements that are interposed between the inner and outer rollers; and a limiting portion protruding from the outer roller, so as to limit movements of the rolling elements and the inner roller. A clearance between the inner roller and the limiting portion is smaller than an axial length of a crowned end portion of each rolling element, and is larger than a stroke distance of reciprocating movement of the tangent point when a joint angle of the tripod constant-velocity joint is a predetermined value.
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公开(公告)号：US11292317B2
公开(公告)日：2022-04-05
申请号：US16395285
申请日：2019-04-26
发明人： Wenke Wu , Xialin Tan
摘要： A multi-directional smooth damper includes a base including an inner cavity, two ends of the inner cavity defining openings, a first rotating portion, and a second rotating portion. A first end of the first rotating portion is rotated and disposed in the inner cavity of the base and a shape of the first end of the first rotating portion corresponds to a shape of the inner cavity. A second end of the first rotating portion passes through an opening of one end of the base. The first rotating portion is disposed at one end of the base having the opening and the inner cavity. A first end of the second rotating portion is rotated and disposed in an inner cavity of the first rotating portion. A grease layer is coated between a surface of the first rotating portion and the surface of the inner cavity of the base.
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公开(公告)号：US20210364060A1
公开(公告)日：2021-11-25
申请号：US17045975
申请日：2019-04-09
摘要： An apparatus for correcting an imbalance in a rotating shaft along with a method for correcting the imbalance in a rotating shaft is identified. The apparatus includes a joint assembly having a first joint member that is drivingly connected to a second joint member by one or more third joint members. At least a portion of a first shaft may be drivingly connected to at least a portion of the first joint member and at least a portion of a second shaft may be drivingly connected to at least a portion of a second end portion of the second join member. A boot can may be connected to at least a portion of a first end portion of the second joint member. One or more balancing elements may then be connected to at least a portion of the boot can and/or the second joint member of the joint assembly.
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公开(公告)号：US20210332856A1
公开(公告)日：2021-10-28
申请号：US17131743
申请日：2020-12-23
IPC分类号： F16D3/205
摘要： A tripot housing includes a housing body that extends between a first housing end and a second housing end along a longitudinal central axis. The housing body defines a guide channel that extends from the first housing end toward the second housing end. The guide channel has a first wall, a second wall, and a third wall that extends between the first wall and the second wall. An elliptical contact surface area transitions the first wall with the third wall and the second wall with the third wall, with the elliptical contact surface areas being configured for engagement with an outer roller of a roller assembly to inhibit a locking condition.
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公开(公告)号：US11098765B2
公开(公告)日：2021-08-24
申请号：US15928131
申请日：2018-03-22
发明人： Hsiang Chen Yu
摘要： An elastic short-pin type universal joint includes a first base, a second base, a jointer, a first elastic member, two second elastic members, and four short pins. The first base engages the second base to form a space therebetween. The jointer is received in the space between the first and the second bases. The jointer has a first bore passing through the jointer, a second bore, and a third bore. The first elastic member is received in the first bore of the jointer, and the second elastic members are received in the second bore and the third bore. The short pins are urged by ends of the first elastic member and the second elastic members to press the first base and the second base respectively. As a result, the first base is able to rotate related to the second base in all directions.
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公开(公告)号：US20200347890A1
公开(公告)日：2020-11-05
申请号：US16864195
申请日：2020-05-01
申请人： Braun GmbH
IPC分类号： F16D3/205
摘要： The present disclosure is concerned with a personal care device having a head portion having a driven treatment head, a handle portion having a drive unit for providing a motion having a motion direction, and a drive train extending between the drive unit and the driven treatment head for transmitting the motion from the drive unit to the driven treatment head, the drive train having a separable coupling. The separable coupling has a first coupling part having a first coupling element, a second coupling part having a second coupling element, the first and the second coupling elements being separably engaged with each other, and a resilient element biasing the first coupling element and the second coupling element against each other so that the first and second coupling elements are engaged in a gap-free manner along the motion direction.
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