利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

23 条记录 (耗时 0.017 秒)

    Method for manufacturing annular member
    1.
    发明授权
    Method for manufacturing annular member 有权

    公开(公告)号：US10471555B2

    公开(公告)日：2019-11-12

    申请号：US15035270

    申请日：2014-11-26

    申请人： NSK Ltd.

    发明人： Kazuto Kobayashi ,  Yuu Yasuda

    IPC分类号： B23P15/00 ,  B23D21/00 ,  B21H1/12 ,  B21H7/18 ,  F16C33/64 ,  B21H1/06

    摘要： A method for manufacturing an annular member includes: a cylindrical member forming step of forming a cylindrical member with an annular shape from a round bar material; and a cutting and separating step of cutting and separating the cylindrical member over an axial direction of the cylindrical member while rotating the cylindrical member, the cylindrical member being cut and separated by a shear force obtained by restraining molds, which apply an urging force to an outer circumferential surface of the cylindrical member, and by a restraining mold, which is provided with a gap on the outer circumferential surface of the cylindrical member, among a plurality of restraining molds provided on an inner circumferential surface side and an outer circumferential surface side of the cylindrical member along the axial direction, to obtain a plurality of annular members.

    MANUFACTURING METHOD FOR BEARING OUTER RING
    3.
    发明申请
    MANUFACTURING METHOD FOR BEARING OUTER RING 有权
    用于承载外圈的制造方法

    公开(公告)号：US20150068264A1

    公开(公告)日：2015-03-12

    申请号：US14151272

    申请日：2014-01-09

    申请人： NSK, Ltd.

    发明人： Kazuto Kobayashi ,  Hiroshi Koyama

    IPC分类号： B23P15/00

    CPC分类号： B23P15/003 ,  B21J1/00 ,  B21J1/04 ,  B21J1/06 ,  B21J5/025 ,  B21J5/10 ,  B21K1/04 ,  B21K21/02 ,  F16C19/184 ,  F16C33/64 ,  Y10T29/49636 ,  Y10T29/49643

    摘要： When the column-shaped raw material 10 is subjected to an upsetting process, a simultaneous forward-backward extrusion process, a punching process, a rolling process and a finishing process in order, to obtain an outer ring 3 that constitutes a back-to back double-row angular ball bearing 3, in the simultaneous forward-backward extrusion process, using a floating die 31 having a bottom plate section 35 with a circular convex section 34 and a punch 33 having a punch side convex section 37 provided on an distal end thereof, the section closer to the center in the radial direction of the first intermediate material 11a is compressed in the axial direction, causing the metal material of the first intermediate material 11a to move outward in the radial direction and move approximately uniformly in both extrusion (forward and backward) direction of the punch 33, whereby the middle metal material 29 having a high degree of cleanliness of the column-shaped raw material 10 is exposed over the entire portion that will become the double-row outer-ring raceways 2.

    摘要翻译： 当对柱状原料10进行镦锻处理，同时进行前后挤出处理，冲压加工，轧制处理和精加工时，为了得到构成背靠背的外圈3 双列角球轴承3在同时向前后退挤压工序中，使用具有圆形凸部34的底板部35的浮动模31和设置在前端的冲头侧凸部37的冲头33 第一中间材料11a的径向中心附近的部分沿轴向被压缩，导致第一中间材料11a的金属材料在径向方向上向外移动并且在两个挤出中大致均匀地移动 向前和向后）的方向，从而使柱状原料10具有高清洁度的中间金属材料29暴露在e 将成为双列外圈滚道的ntire部分2。

    Method for manufacturing ring-shaped member and manufacturing apparatus for same
    4.
    发明授权
    Method for manufacturing ring-shaped member and manufacturing apparatus for same 有权

    公开(公告)号：US10583475B2

    公开(公告)日：2020-03-10

    申请号：US15505689

    申请日：2015-08-20

    申请人： NSK LTD.

    发明人： Kazuto Kobayashi ,  Yuu Yasuda

    IPC分类号： B21H1/12 ,  B21B5/00 ,  F16C33/00

    摘要： Construction is achieved that, together with preventing the occurrence of damage to a mandrel, is able to improve precision of the shape of a ring-shaped member after processing. A mandrel includes a pair of support shaft sections that are provided so as to be separated in the axial direction and so as to be concentric with each other, and a rolling shaft section that is concentrically provided in the axial direction between the pair of support shaft sections. One of the support shaft sections is provided in a state in which displacement in the axial direction with respect to the rolling shaft section is regulated. The other support shaft section is provided in a state in which displacement in a direction going away from the rolling shaft section is possible when a pressing force is applied in that direction.

    Method for manufacturing ring-shaped member
    6.
    发明授权
    Method for manufacturing ring-shaped member 有权

    公开(公告)号：US10272485B2

    公开(公告)日：2019-04-30

    申请号：US15115698

    申请日：2015-02-12

    申请人： NSK Ltd.

    发明人： Kazuto Kobayashi ,  Yuu Yasuda

    IPC分类号： B21H1/12 ,  B21K1/04 ,  F16C33/64

    摘要： There is provided a method for manufacturing ring-shaped members at a good yield and high production efficiency. To achieve this object, the following is performed. A single (a sequence of) forging produces a joined body formed by radially coupling four cylindrical portions with different inner diameter sizes. A cylindrical member that has the largest inner diameter size and a cylindrical member that has the third largest inner diameter size after the forging are employed as ring-shaped members without change. A rolling process is performed on respective cylindrical member that has the smallest inner diameter size and cylindrical member that has the second largest inner diameter size to obtain ring-shaped members. Thus, two sets of ring-shaped members are obtained as two sets of inner rings and outer rings.

    ROLLER CLUTCH EQUIPPED WITH SUPPORT BEARINGS
    9.
    发明申请
    ROLLER CLUTCH EQUIPPED WITH SUPPORT BEARINGS 审中-公开
    带有支撑轴承的滚子离合器

    公开(公告)号：US20150204395A1

    公开(公告)日：2015-07-23

    申请号：US14422875

    申请日：2013-07-24

    申请人： NSK Ltd.

    发明人： Hirofumi Mori ,  Kazuto Kobayashi

    IPC分类号： F16D41/067

    CPC分类号： F16D41/067 ,  F16C19/28 ,  F16D13/76 ,  F16D2041/0601 ,  F16D2300/02

    摘要： Provided is a low-cost roller clutch equipped with support bearings having excellent transmission performance and durability and for which it is possible to surely prevent interference between component members. Of the component members of a roller clutch 10b, a first support bearing 29 and second support bearing 30, an outer-ring member 27 is common. A first race member 33, which functions as the inner ring of the first support bearing 29, and a clutch inner-ring member 28 are a single body. The clutch inner-ring member 28 and a second race member 34 of the second support bearing 30 are separate bodies. A clutch retainer 15b is held between the back-end sections of concave sections 19 of a cam surface 18 and the end edge of the second race member 34, and displacement in the axial direction of the clutch retainer 15b is suppressed. As a result, the clutch retainer 15b is prevented from hindering the rotation of the first support bearing 29 and second support bearing 30.

    摘要翻译： 提供一种具有优异的传动性能和耐久性的支承轴承的低成本辊式离合器，并且能够可靠地防止部件之间的干涉。 在辊式离合器10b的构成部件中，第一支承轴承29和第二支承轴承30是外圈部件27。 用作第一支撑轴承29的内圈的第一座圈构件33和离合器内圈构件28是单体。 第二支撑轴承30的离合器内圈构件28和第二座圈构件34是分离的主体。 离合器保持器15b保持在凸轮表面18的凹部19的后端部和第二座圈构件34的端部边缘之间，并且抑制了离合器保持器15b的轴向位移。 结果，防止离合器保持器15b阻碍第一支撑轴承29和第二支撑轴承30的旋转。

    Ribbon cage and manufacturing method thereof
    10.
    发明授权
    Ribbon cage and manufacturing method thereof 有权
    丝带笼及其制造方法

    公开(公告)号：US09080609B2

    公开(公告)日：2015-07-14

    申请号：US14394818

    申请日：2013-04-16

    申请人： NSK LTD.

    发明人： Keita Itagaki ,  Yuuki Mizushima ,  Kazuto Kobayashi

    IPC分类号： F16C33/42 ,  F16C33/38 ,  F16C33/46 ,  F16C19/06 ,  F16C43/04

    CPC分类号： F16C33/38 ,  F16C19/06 ,  F16C33/427 ,  F16C33/467 ,  F16C43/04 ,  F16C2226/54 ,  F16C2240/40 ,  Y10T29/49691

    摘要： Characteristics of joint sections using rivets 11a that join flat sections 12a, 12b of a pair of cage elements are improved regardless of differences in the volumes of the rivets 11a. A head section 16a and a crimped section 19a of a rivet 11a comprise flange sections 23a, 23b and convex sections 24a, 24b. The inside surfaces of the flange sections 23a, 23b press against the outside surfaces of the flat sections 12a, 12b. The convex sections 24a, 24b have a truncated cone shape with the maximum diameter being on the flange section 23a, 23b side. The diameter d24 of the apex of the convex sections 24a, 24b is equal to or less than the inner diameter R15 of circular holes 15, and the outer diameter D23 of the flange sections 23a, 23b is equal to or greater than the outer diameter D24 of the bottom section of the convex sections 24a, 24b. Furthermore, the amount of protrusion L23 that the flange sections 23a, 23b protrude from the convex sections 24a, 24b is equal to or less than two times the thickness T23 in the axial direction of the flange sections 23a, 23b.

    摘要翻译： 无论铆钉11a的体积有多大变化，都能够提高使用铆接件11a的接合部的特性，该铆钉11a与一对保持架元件的平坦部12a，12b接合。 铆钉11a的头部16a和卷曲部19a包括凸缘部23a，23b和凸部24a，24b。 凸缘部分23a，23b的内表面压靠平面部分12a，12b的外表面。 凸部24a，24b具有截头圆锥形状，最大直径在凸缘部23a，23b侧。 凸部24a，24b的顶点的直径d24等于或小于圆形孔15的内径R15，凸缘部23a，23b的外径D23等于或大于外径D24 的凸部24a，24b的底部。 此外，凸缘部23a，23b从凸部24a，24b突出的突起量L23等于或小于凸缘部23a，23b的轴向厚度T23的两倍。