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38 条记录 (耗时 0.014 秒)

    Drive device having a tubular linear motor
    1.
    发明授权
    Drive device having a tubular linear motor 有权

    公开(公告)号：US12081094B2

    公开(公告)日：2024-09-03

    申请号：US17001655

    申请日：2020-08-24

    申请人： NTI AG

    发明人： Ronald Rohner

    IPC分类号： H02K5/16 ,  F16C19/14 ,  H02K5/173

    CPC分类号： H02K5/173 ,  F16C19/14 ,  F16C2202/40 ,  F16C2208/36 ,  F16C2208/52

    摘要： A drive device comprises at least one tubular linear motor (M1; M1′; M2) which has a cylindrical armature (20; 120) and a tubular stator (10) with a cylindrical magnetic yoke (11) and a through-hole (13) coaxial with the magnetic yoke (11). Electric drive coils (12; 112) are arranged in the magnetic yoke (11). The armature (20; 120) has a non-magnetic armature tube (21) in which permanent magnets (23) are arranged. The armature (20; 120) extends coaxially through the through-hole (13) and is mounted so as to be movable in its longitudinal direction relative to the stator (10). The drive device comprises linear ball bearings (15; 115), and the armature (20; 120) of the tubular linear motor (M1; M1′; M2) is mounted in the linear ball bearings (15; 115).

    ROLLER BEARING
    5.
    发明申请
    ROLLER BEARING 有权

    公开(公告)号：US20170204902A1

    公开(公告)日：2017-07-20

    申请号：US15392263

    申请日：2016-12-28

    申请人： JTEKT CORPORATION

    发明人： Yuki SHISHIHARA ,  Shigeo KAMAMOTO ,  Junji MURATA

    IPC分类号： F16C19/36 ,  F16C33/56 ,  F16C33/58 ,  F16C33/46 ,  F16C33/36

    CPC分类号： F16C33/4605 ,  F16C19/364 ,  F16C33/366 ,  F16C33/46 ,  F16C33/4635 ,  F16C33/4676 ,  F16C33/56 ,  F16C33/585 ,  F16C33/6681 ,  F16C2208/52 ,  F16C2240/50 ,  F16C2361/61

    摘要： A roller bearing includes an inner ring having an inner-ring raceway surface on an outer periphery of the inner ring, an outer ring arranged concentric with and peripherally outside the inner ring, and having, on an inner periphery of the outer ring, an outer-ring raceway surface that faces the inner-ring raceway surface, a plurality of rollers interposed between the inner-ring raceway surface and the outer-ring raceway surface in a rollable manner, and a cage that holds the rollers at predetermined intervals along a circumferential direction. Opposite end portions of the outer-ring raceway surface in an axial direction serve as guide surfaces or which rotation of the cage is guided. Or an outer periphery of the cage, slidable contact surfaces are formed which slidably contact the guide surfaces and which are arranged to thee the respective guide surfaces across a labyrinth clearance.

    Rolling Bearing
    6.
    发明申请
    Rolling Bearing 审中-公开
    滚动轴承

    公开(公告)号：US20170023065A1

    公开(公告)日：2017-01-26

    申请号：US15210013

    申请日：2016-07-14

    申请人： JTEKT CORPORATION

    发明人： Shigeo KAMAMOTO ,  Junji MURATA ,  Yuki SHISHIHARA ,  Kunishige NAKAZAWA

    IPC分类号： F16C33/78 ,  F16C19/06

    CPC分类号： F16C19/06 ,  F16C19/527 ,  F16C33/7846 ,  F16C33/7856 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2220/04

    摘要： A rolling bearing includes an inner ring, an outer ring, a plurality of balls, a cage that holds the balls, and a sealing device that is attached to each of opposite sides of the outer ring in an axial direction to prevent foreign matter from entering inside the bearing. A noise-reduction portion that attenuates sound inside the bearing is formed on at least one of a surface of the cage and a bearing inner-side surface of the sealing device.

    摘要翻译： 滚动轴承包括内圈，外圈，多个球，保持滚珠的保持架，以及密封装置，其沿轴向安装在外圈的相对侧中的每一侧，以防止异物进入 在轴承内。 在保持架的表面和密封装置的轴承内侧表面中的至少一个上形成有使轴承内的声音衰减的噪声降低部。

    Retainer and ball bearing
    8.
    发明授权
    Retainer and ball bearing 有权

    公开(公告)号：US09709095B2

    公开(公告)日：2017-07-18

    申请号：US14386962

    申请日：2013-03-25

    申请人： NTN Corporation

    发明人： Takashi Ueno

    IPC分类号： F16C33/38 ,  F16C33/42 ,  F16C19/06 ,  F16C33/66

    CPC分类号： F16C33/3887 ,  F16C19/06 ,  F16C33/3875 ,  F16C33/427 ,  F16C33/6651 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2240/44 ,  F16C2326/06

    摘要： A retainer includes two annular retaining plates combined with each other, and each having semispherical bulging portions arranged at predetermined intervals along a circumferential direction of the retainer. The semispherical bulging portions, which face each other, form a pocket having a ring-like shape, for retaining a ball. The pocket includes a ball non-contact portion formed in a ball facing surface of the pocket at a center portion in a pocket axial direction, the ball non-contact portion being defined by a recess extending in a pocket circumferential direction. The following relationship is set: A/(B+C)=0.70 to 0.90, where “A” represents a pocket circumferential length of the ball non-contact portion, “B” represents a diameter of the ball, and “C” represents a gap formed between the ball and the ball facing surface of the pocket.

    ROLLING BEARING
    9.
    发明申请
    ROLLING BEARING 有权
    滚动轴承

    公开(公告)号：US20150093060A1

    公开(公告)日：2015-04-02

    申请号：US14389467

    申请日：2013-04-11

    申请人： NTN CORPORATION

    发明人： Tomohisa Uozumi ,  Tomoyoshi Izutsu

    IPC分类号： F16C33/66 ,  F16C33/46

    CPC分类号： F16C33/6681 ,  F16C19/06 ,  F16C33/3875 ,  F16C33/4605 ,  F16C33/4652 ,  F16C33/583 ,  F16C33/7893 ,  F16C33/80 ,  F16C2208/36 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2208/62 ,  F16C2208/90

    摘要： A rolling bearing includes inner and outer races rotatable relative to each other, a plurality of rolling elements interposed between the inner and outer races, and a retainer arranged between the inner and outer races for retaining the plurality of rolling elements equiangularly. Flange portions are formed on a radially inner side and a radially outer side of an axial end portion of the retainer so as to extend radially. Recessed grooves are formed in a region of the inner race and a region of the outer race corresponding to the respective flange portions so as to form labyrinths together with the flange portions. Inner side surfaces of the flange portions and axial end surfaces of the recessed grooves, which are opposed to the inner side surfaces of the flange portions, are inclined radially so as to generate a flow of lubricant.

    摘要翻译： 滚动轴承包括可相对于彼此旋转的内座圈和外座圈，插入在内座圈和外座圈之间的多个滚动元件，以及设置在内座圈和外座圈之间的用于等轴地保持多个滚动元件的保持器。 凸缘部形成在保持器的轴向端部的径向内侧和径向外侧，以径向延伸。 在内座圈的区域和外圈的与相应的凸缘部分相对应的区域中形成凹槽，以便与凸缘部分一起形成迷宫。 与凸缘部的内侧面相对的凸缘部的内侧面和凹槽的轴向端面，径向地倾斜，产生润滑剂的流动。

    SLIDING BEARING AND IMAGE FORMING APPARATUS
    10.
    发明申请
    SLIDING BEARING AND IMAGE FORMING APPARATUS 有权
    滑动轴承和图像形成装置

    公开(公告)号：US20140226927A1

    公开(公告)日：2014-08-14

    申请号：US14346675

    申请日：2012-09-20

    申请人： NTN CORPORATION

    发明人： Takuya Ishii ,  Ikuma Fujitsuka ,  Kei Hattori ,  Kazuo Hirose ,  Satoru Fukuzawa

    IPC分类号： F16C33/20 ,  F16C33/10 ,  F16C33/12

    CPC分类号： F16C33/201 ,  F16C13/02 ,  F16C17/02 ,  F16C17/022 ,  F16C17/22 ,  F16C23/045 ,  F16C23/046 ,  F16C33/102 ,  F16C33/121 ,  F16C33/124 ,  F16C33/208 ,  F16C2202/32 ,  F16C2204/52 ,  F16C2204/60 ,  F16C2204/66 ,  F16C2204/70 ,  F16C2204/72 ,  F16C2208/32 ,  F16C2208/36 ,  F16C2208/40 ,  F16C2208/52 ,  F16C2208/60 ,  F16C2208/66 ,  F16C2208/78 ,  F16C2220/04 ,  F16C2240/30 ,  F16C2240/54 ,  F16C2324/16 ,  F16C2370/38 ,  G03G15/167 ,  G03G15/2053 ,  G03G15/757 ,  G03G21/1647

    摘要： Provided is a sliding bearing that has a simple, easy-to-manufacture structure, does not require an insulating sleeve or the like, is not affected by the material or surface roughness of a roller against which the bearing slides, exhibits low friction torque and low wear, tolerates moment loads, and is easy to replace; as well as an image forming apparatus using the bearing. The sliding bearing is a radial sliding bearing provided with a sliding bearing (1), an inner ring (2), and an outer ring (3), the inner ring (2) is made of melt-cast metal and the outer ring (3) being constituted by an article molded from a resin composition, the inner ring (2) comprising a concavely curved surface (2a) on part of the axial direction of the outer circumference and a bearing hole (4) for mating with a support shaft on the inner circumference, the outer ring (3) comprising a convexly curved surface (3a) that contacts and slides against the concavely curved surface (2a) on the outer circumference of the inner ring (2) along part of the axial direction of the inner circumference, and the inner ring (2) and the outer ring (3) relatively rotating without contacting each other apart from the contact between the convexly curved surface and the concavely curved surface.

    摘要翻译： 提供一种滑动轴承，其具有简单，易于制造的结构，不需要绝缘套筒等，不受轴承滑动的辊的材料或表面粗糙度的影响，表现出低摩擦转矩和 低磨损，容易承受力矩，易于更换; 以及使用该轴承的图像形成装置。 滑动轴承是设置有滑动轴承（1），内圈（2）和外圈（3）的径向滑动轴承，内圈（2）由熔铸金属制成，外圈 3）由由树脂组合物成型的制品构成，所述内圈（2）在外周的轴向的一部分上包括凹曲面（2a）和用于与支撑轴配合的轴承孔（4） 所述外圈（3）包括凸形弯曲表面（3a），所述凸形弯曲表面（3a）沿着所述内圈（2）的外周的一部分沿着所述内环（2）的外周的一部分接触并且抵靠所述凹形曲面 内圈和内圈（2）和外圈（3）相对旋转而不与凸曲面和凹曲面之间的接触彼此接触。