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公开(公告)号：US20190210491A1
公开(公告)日：2019-07-11
申请号：US16325463
申请日：2017-07-31
申请人： NTN CORPORATION
发明人： Naotsugu KITAYAMA , Koji SATO
CPC分类号： B60N2/1892 , B60N2/16 , B60N2/1814 , B60N2/1864 , F16D13/02 , F16D13/38 , F16D15/00 , F16D41/02 , F16D41/06 , F16D41/067 , F16D41/08 , F16D41/105 , F16D63/00 , F16D67/02
摘要： A clutch unit includes a lever-side clutch part to control transmission and interruption of rotational torque input through a lever operation and a brake-side clutch part to transmit the rotational torque from the lever-side clutch part to the output side and interrupt rotational torque reversely input from the output side. The brake-side clutch part includes an outer ring constrained in rotation, an output shaft to output the rotation, cylindrical rollers to control interruption of the rotational torque reversely input from the output shaft and transmission of the rotational torque input from the lever-side clutch part through engagement and disengagement between the outer ring and the output shaft, a friction ring to apply a rotational resistance to the output shaft, and a variable part to change the rotational resistance applied to the output shaft between the transmission and the interruption of the rotational torque.
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公开(公告)号：US20230374993A1
公开(公告)日：2023-11-23
申请号：US18031502
申请日：2021-10-06
申请人： NTN Corporation
CPC分类号： F04D13/0686 , F04D29/5813 , H05K7/20009
摘要： An electric oil pump 1 includes: a pump unit 2 that generates hydraulic pressure; a motor unit 3 that drives the pump unit; a substrate 4 on which a control circuit for controlling the motor unit 3 is formed by a plurality of electronic components 41; and a housing 5 equipped with a pump accommodation unit 53 that houses the pump unit, a motor accommodation unit 54 that houses the motor unit, and a substrate accommodation unit 55 that houses the substrate. The substrate 4 is disposed along the tangential direction of a circle about the axis of the motor unit 3. The pump accommodation unit 53, the motor accommodation unit 54, and the substrate accommodation unit 55 are integrally formed.
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公开(公告)号：US20170009821A1
公开(公告)日：2017-01-12
申请号：US15113616
申请日：2015-01-26
申请人： NTN CORPORATION
发明人： Marina FUKUNARI , Takahide SAITO , Koji SATO , Makoto TOKUDA , Kyohei SASANUMA , Motohiro TADA , Naotsugu KITAYAMA
IPC分类号： F16D41/066 , F16D27/10
CPC分类号： F16D41/066 , F16D27/10 , F16D27/112 , F16D27/14 , F16D41/088 , F16D41/105 , F16D2023/123 , F16D2300/22 , F16F1/3732 , F16F1/376
摘要： A rotation transmission device is provided in which a collision sound by an armature and a rotor is less likely to occur, and further the armature is stably attracted to the rotor. A buffer is provided between the armature and the rotor. The buffer is constituted by a metal annulus axially movably supported by the armature, and a rubber annulus configured such that as the armature approaches the rotor, the rubber annulus is axially compressed by the metal annulus and the armature. The rubber annulus has different axial thicknesses at different circumferential locations thereof such that when the degree of axial compression of the rubber annulus is large, the rubber annulus is axially compressed in its longer circumferential area than when the degree of axial compression of the rubber annulus is small.
摘要翻译： 提供了一种旋转传递装置，其中不太可能发生电枢和转子的碰撞声，并且电枢被稳定地吸引到转子。 在电枢和转子之间提供缓冲器。 缓冲器由可由电枢轴向移动地支撑的金属环构成，并且橡胶环被构造成使得当衔铁接近转子时，橡胶环被金属环和电枢轴向地压缩。 橡胶环在其不同的周向位置处具有不同的轴向厚度，使得当橡胶环的轴向压缩程度大时，橡胶环在其较长的周向区域中被轴向压缩，而不是橡胶环的轴向压缩程度 小。
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公开(公告)号：US20170002876A1
公开(公告)日：2017-01-05
申请号：US15125688
申请日：2015-03-23
申请人： NTN CORPORATION
IPC分类号： F16D41/08 , F16D41/066 , F16D27/10
CPC分类号： F16D41/088 , F16D27/10 , F16D27/112 , F16D41/066 , F16D2023/123
摘要： A rotation transmission device includes an inner ring provided on an input shaft, the outer ring, which is provided on an output shaft, rollers mounted between the inner periphery of the outer ring and the outer periphery of the inner ring, an electromagnet, as a driving source for moving a roller retainer, mounted at the end portion of the housing on the side of the input shaft, a first bearing mounted between the electromagnet and the input shaft, a second bearing mounted between the end portion of the housing on a side of the output shaft and the output shaft, and a third bearing mounted between the inner ring and the outer ring. The rotation transmission device further includes a fourth bearing configured to prevent inclination of the axes of the input shaft and the output shaft relative to each other.
摘要翻译： 旋转传递装置包括设置在输入轴上的内圈，设置在输出轴上的外圈，安装在外圈内周和内圈外周之间的滚子，电磁铁 驱动源，用于移动安装在所述壳体的所述输入轴侧的端部处的滚子保持器，安装在所述电磁体和所述输入轴之间的第一轴承，安装在所述壳体的所述端部的一侧 的输出轴和输出轴，以及安装在内圈和外圈之间的第三轴承。 旋转传递装置还包括第四轴承，其构造成防止输入轴和输出轴相对于彼此的倾斜。
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公开(公告)号：US20160238092A1
公开(公告)日：2016-08-18
申请号：US15024998
申请日：2014-09-25
申请人： NTN CORPORATION
发明人： Koji AKIYOSHI , Koji SATO , Naotsugu KITAYAMA , Takahide SAITO
IPC分类号： F16D47/04 , F16D41/067 , F16D41/08 , F16D21/08
CPC分类号： F16D47/04 , F16D21/08 , F16D27/118 , F16D41/067 , F16D41/088
摘要： When a control retainer and a rotary retainer rotate relative to each other, a plurality of pairs of rollers received in respective pockets are pushed by pillars so as to move to their disengaged position. An anti-rotation means is provided between an outer ring and the control retainer. The anti-rotation means prevents the control retainer from rotating relative to the outer ring when the rollers are engaged, so that that the rollers does not move to their neutral position. This increases reliability. The anti-rotation means includes a plurality of first protrusions formed on the surface of the outer ring, and a plurality of second protrusions formed on the surface of the control retainer axially opposed to the surface of the outer ring. Heat treatment is performed to the first and second protrusions so as to increase the hardness thereof.
摘要翻译： 当控制保持器和旋转保持器相对于彼此旋转时，容纳在各个袋中的多对辊被柱子推动以移动到其脱离位置。 在外圈和控制保持器之间提供防旋转装置。 当滚子接合时，防旋转装置防止控制保持器相对于外圈旋转，使得辊不移动到其中立位置。 这增加了可靠性。 防旋转装置包括形成在外圈表面上的多个第一突起和形成在与外圈表面轴向相对的控制保持器的表面上的多个第二突起。 对第一和第二突起进行热处理以增加其硬度。
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公开(公告)号：US20170198760A1
公开(公告)日：2017-07-13
申请号：US15315673
申请日：2015-05-28
IPC分类号： F16D27/112 , F16D27/14
CPC分类号： F16D27/112 , F16D13/40 , F16D27/14 , F16D2300/22
摘要： An electromagnetic connection device includes an armature (4), a rotor (3), an electromagnetic coil (14), and a spring member (24) that biases the armature (4) in a direction in which the armature (4) is separated from the rotor (3). The electromagnetic connection device includes a damping member (25) mounted on the armature (4) so as to face the rotor (3). The armature (4) includes a flat portion (22) and a tubular portion (8). The damping member (25) includes a damper cover (26) including an abutment portion along the flat portion (22) and an engaging portion along the tubular portion (8), and an elastic member (27) sandwiched between the abutment portion and the flat portion (22). The damper cover (26) is put on the armature (4) from the side of the rotor (3) and movably held on the tubular portion (8). The flat portion (22) includes a concave portion (35) configured to store the abutment portion of the damper cover (26). There is provided an electromagnetic connection device capable of obtaining a high damping effect and raising the productivity while preventing the elastic member from being exposed to a friction surface.
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公开(公告)号：US20160186820A1
公开(公告)日：2016-06-30
申请号：US14912245
申请日：2014-08-08
申请人： NTN CORPORATION
发明人： Naotsugu KITAYAMA , Kyohei SASANUMA , Marina FUKUNARI , Takahide SAITO , Koji SATO , Masahiro KAWAI
IPC分类号： F16D41/08 , F16D27/108
CPC分类号： F16D41/088 , F16D27/108 , F16D27/112 , F16D2023/123
摘要： A rotation transmission device is provided in which leakage of magnetism from an armature to a control retainer is reduced, and of which a two-way clutch can be operated accurately and reliably. This device includes a restricting arrangement for restricting the fitting amount between a coupling tube of the armature and a tubular portion of the control retainer such that a gap is defined between a back surface of the armature, with respect to its surface to be attracted to a rotor, and an end surface of the tubular portion, to prevent leakage of magnetism from the back surface of the armature to the end surface of the tubular portion when an electromagnet is energized and the armature is pulled to the rotor.
摘要翻译： 提供了一种旋转传递装置，其中磁体从电枢向控制保持器的泄漏减少，并且其中双向离合器可以被精确和可靠地操作。 该装置包括用于限制电枢的联接管与控制保持器的管状部分之间的配合量的限制装置，使得在电枢的后表面之间限定相对于其表面被吸引到 转子和管状部分的端面，以防止当电磁体被激励并且电枢被拉到转子时磁体从电枢的后表面泄漏到管状部分的端面。
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公开(公告)号：US20160010702A1
公开(公告)日：2016-01-14
申请号：US14763527
申请日：2014-01-16
申请人： (NTN CORPORATION)
发明人： Naotsugu KITAYAMA , Marina FUKUNARI , Kyohei SASANUMA , Koji AKIYOSHI , Masahiro KAWAI , Takahide SAITO , Koji SATO
CPC分类号： F16D27/14 , F16D27/08 , F16D27/10 , F16D27/102 , F16D27/108 , F16D27/112 , F16D41/07 , F16D41/084 , F16D41/088 , F16D41/105 , F16D2023/123 , F16D2300/22
摘要： A rotation transmission device is provided which generates less colliding sounds and vibrations. The rotation transmission device is configured such that when an electromagnet of an electromagnetic clutch is energized, an armature is attracted toward a rotor, so that a control retainer forming a two-way clutch is moved in the axial direction, whereby the control retainer and a rotary retainer are rotated relative to each other in the direction in which the circumferential widths of pockets decrease, thereby disengaging pairs of rollers from the inner periphery of an outer ring and the outer periphery of an inner ring. The rotation transmission device includes a shock absorbing member provided on the surface of the armature facing the rotor and configured to absorb impact force when the armature is attracted to the rotor by being elastically deformed.
摘要翻译： 提供了一种旋转传递装置，其产生较少的碰撞声和振动。 旋转传递装置被构造成使得当电磁离合器的电磁体通电时，电枢被吸引到转子，使得形成双向离合器的控制保持器在轴向方向上移动，由此控制保持器和 旋转保持器在凹部的周向宽度减小的方向上相对旋转，从而使成对的辊与外圈的内周和内圈的外周分离。 旋转传递装置包括设置在面向转子的电枢的表面上的减震构件，其构造成当电枢被弹性变形地吸引到转子时吸收冲击力。
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公开(公告)号：US20240247654A1
公开(公告)日：2024-07-25
申请号：US18577974
申请日：2022-06-23
申请人： NTN CORPORATION
IPC分类号： F04B49/20
CPC分类号： F04B49/20 , F04B2203/0201 , F04B2203/0209
摘要： An electrically-driven oil pump device includes a pump that circulates oil, a motor that drives the pump, a control unit that drives the motor on the basis of the received command rotational speed, a current detection unit that detects a motor current flowing through the motor, and a rotation sensor that detects the rotational speed of the motor. When the current detection unit detects a motor current greater than or equal to a set value that has been set in advance on the basis of the relationship of the motor current with respect to the pressure (hydraulic pressure) of the oil, the control unit outputs a response rotational speed corresponding to the command rotational speed instead of the actual rotational speed detected by the rotation sensor.
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公开(公告)号：US20170138415A1
公开(公告)日：2017-05-18
申请号：US15127562
申请日：2015-03-26
申请人： NTN CORPORATION
IPC分类号： F16D41/08 , F16D41/067 , F16D27/06
CPC分类号： F16D41/086 , F16D27/06 , F16D41/067 , F16D2023/123
摘要： A rotation transmission device includes an electromagnetic clutch including an armature, a rotor having an outer tubular portion and an inner tubular portion, and an electromagnet. A bearing support tube is provided at the outer end surface of a core supporting an electromagnetic coil of the electromagnet. A bearing is mounted in the bearing support tube so as to be axially fixed in position and not to be pulled out of the bearing support tube. The small-diameter tubular portion is provided at the end of the inner tubular portion of the rotor, and press-fitted in the bearing such that the rotor and the electromagnet form a unit.
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