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7 条记录 (耗时 0.026 秒)

    Carburized and induction-hardened component
    2.
    发明申请
    Carburized and induction-hardened component 有权
    渗碳和感应淬火组分

    公开(公告)号：US20090301608A1

    公开(公告)日：2009-12-10

    申请号：US11919068

    申请日：2006-04-28

    申请人： Takao Taniguchi ,  Hisao Shirai ,  Kouji Ohbayashi ,  Kazuaki Okada ,  Hideo Kanisawa ,  Shuji Kozawa

    发明人： Takao Taniguchi ,  Hisao Shirai ,  Kouji Ohbayashi ,  Kazuaki Okada ,  Hideo Kanisawa ,  Shuji Kozawa

    IPC分类号： C23C8/22

    CPC分类号： C21D9/40 ,  C21D1/00 ,  C21D1/06 ,  C21D1/10 ,  C21D7/06 ,  C21D9/32 ,  C22C38/001 ,  C22C38/02 ,  C22C38/04 ,  C22C38/06 ,  C22C38/22 ,  Y02P10/253

    摘要： A steel component formed by carburizing and then induction-hardening of a steel consisting essentially of, by mass, C: minimum 0.08% and less than 0.3%; Si: maximum 2.0%; Mn: from 0.2% to 3.0%; P: maximum 0.03%; S: from 0.005% to 0.05%; Ni: maximum 1.5%; Cr: maximum 3.0%; Mo: maximum 1.0%; O: maximum 0.0025%; and N: from 0.005% to 0.03%; and further including either or both of, by mass, Al: from 0.005% to 0.05%, and Ti: from 0.005% to 0.05%; and still further including either or both of, by mass, V: maximum 0.3%, and Nb: maximum 0.3%; and a balance including Fe and unavoidable impurities. The hardness of the surface layer is at least 55 HRC and the hardness of the core portion is from 20 to 50 HRC. The core portion does not include a martensite structure.

    摘要翻译： 通过基本上以质量计C：最小0.08％且小于0.3％的钢渗碳然后感应硬化而形成的钢部件; Si：最大2.0％; Mn：0.2〜3.0％ P：最大0.03％; S：0.005〜0.05％ 镍：最高1.5％; Cr：最高3.0％; Mo：最大1.0％; O：最大0.0025％; 和N：0.005〜0.03％。 并且进一步包括以质量计Al，0.005％至0.05％，Ti：0.005％至0.05％中的一种或两种; 并且还进一步包括以下两种或两种：V：最大0.3％，Nb：最大0.3％; 余量包括Fe和不可避免的杂质。 表面层的硬度至少为55HRC，芯部的硬度为20〜50HRC。 核心部分不包括马氏体结构。

    Outer race working method and apparatus therefor
    5.
    发明授权
    Outer race working method and apparatus therefor 失效
    外场工作方法及其设备

    公开(公告)号：US4369558A

    公开(公告)日：1983-01-25

    申请号：US211848

    申请日：1980-12-01

    申请人： Yasuo Iwata ,  Hisao Shirai

    发明人： Yasuo Iwata ,  Hisao Shirai

    IPC分类号： B21J5/02 ,  B21J5/12 ,  B21J13/02 ,  B21K1/14 ,  B21K1/76 ,  B21K1/04

    CPC分类号： B21J5/12 ,  B21K1/762 ,  B21K1/765 ,  F16D3/223 ,  F16D2250/00 ,  Y10T29/49689 ,  Y10T29/53109

    摘要： Herein disclosed are outer race working method and apparatus of the type, in which such a roughly shaped outer race workpiece of a Birfield type constant-velocity ball joint as is formed with a groove made axially straight at its portion above the joint center and having an axial curvature below the joint center, in which a hexagonal-pillar guide punch and a split mandrel composed of six segments are inserted into the aforementioned groove of the roughly shaped workpiece thereby to iron the inner surface of the aforementioned groove and to form both a center hole corresponding to the center of a ball rolling groove and a face for providing a reference for the axial position of the groove center, and in which the roughly shaped workpiece is then ironed by means of an ironing die, whereby the ball rolling groove is plastically worked all over its surface from its lower portion to its upper portion.

    摘要翻译： 这里公开的是这种类型的外圈加工方法和装置，其中Birfield型等速球形接头的这种大致形状的外圈工件形成有在其接合中心上方的部分轴向成直角的槽，并且具有 在六角柱引导冲头和由六个部分组成的分裂心轴插入到大致成形工件的上述凹槽中的轴向曲率下方，从而熨烫上述凹槽的内表面并形成两个中心 与滚珠槽的中心对应的孔，以及用于为槽中心的轴向位置提供基准的面，其中粗大的成形工件然后通过熨烫模具熨烫，由此滚珠槽是塑性的 在其整个表面上从其下部到其上部。

    Rotor assembly of roots pump
    6.
    发明授权
    Rotor assembly of roots pump 失效
    根泵转子总成

    公开(公告)号：US4747763A

    公开(公告)日：1988-05-31

    申请号：US870746

    申请日：1986-06-04

    申请人： Takuo Sibata ,  Hisao Shirai ,  Yoshio Kuroiwa ,  Katsuro Harada ,  Kichiro Kato ,  Naofumi Masuda

    发明人： Takuo Sibata ,  Hisao Shirai ,  Yoshio Kuroiwa ,  Katsuro Harada ,  Kichiro Kato ,  Naofumi Masuda

    IPC分类号： F04C2/12 ,  F01C21/08 ,  F04C2/08 ,  F04C2/18 ,  F04C15/00 ,  F04C18/00 ,  F16D1/00

    CPC分类号： F01C21/08 ,  F04C15/0076 ,  F04C2/084 ,  Y10T403/4966 ,  Y10T403/7035 ,  Y10T403/7088

    摘要： A Roots pump having a plurality of rotor assemblies each including a light-alloy rotor, a steel shaft press-fitted in a bore of the rotor and a lock pin which is inserted through the rotor and the shaft to prevent removal of the shaft from the rotor. The lock pin is located substantially at an axial center of a press-fitted portion of the shaft accommodated the axial bore. The shaft has a timing gear at one end thereof for meshing with a timing gear of the shaft of the adjacent rotor assembly. The shaft further has a plurality of engagement teeth provided at one of opposite ends of the press-fitted portion on the side of the timing gear. The engagement teeth are at least partially embedded in an inner surface defining the axial bore of the rotor, upon press-fitting of the press-fitted portion in the axis bore, to thereby prevent a rotational movement of the shaft relative to the rotor.

    摘要翻译： 一种具有多个转子组件的罗茨泵，每个转子组件包括轻合金转子，压配合在转子的孔中的钢轴和插入通过转子和轴的锁销，以防止轴脱离 转子。 锁销基本上位于容纳轴向孔的轴的压配部分的轴心处。 轴在其一端具有正时齿轮，用于与相邻转子组件的轴的正时齿轮啮合。 轴还具有设置在正时齿轮侧的压配合部分的相对端之一的多个啮合齿。 当将压配合部分压配合在轴孔中时，接合齿至少部分地嵌入限定转子的轴向孔的内表面中，从而防止轴相对于转子的旋转运动。

    Solenoid valve for hydraulic control
    7.
    发明授权
    Solenoid valve for hydraulic control 失效
    电磁阀用于液压控制

    公开(公告)号：US4647008A

    公开(公告)日：1987-03-03

    申请号：US766800

    申请日：1985-08-19

    申请人： Hisao Shirai ,  Takuo Sibata ,  Takashi Izuo

    发明人： Hisao Shirai ,  Takuo Sibata ,  Takashi Izuo

    IPC分类号： F16K31/06

    CPC分类号： F16K31/0655

    摘要： A solenoid valve for hydraulic control, comprises: a stationary iron core; a guide pipe; a return spring; a plunger; and a valve body.Firstly, the plunger is made slidable immediately on the inner periphery of a columnar recess of the stationary iron core, whereby a magnetic reluctance of a magnetic path formed when a current is passed is decreased, so that an attracting force can be increased accordingly.Furthermore, the plunger made hollow is made slidable on the outer periphery of the guide pipe and the valve body is fixed to and disposed at an end portion of the plunger, so that these movable members can be rendered light in weight.Further, a member for guiding the sliding of the plunger (a guide pipe) is disposed on the inner periphery of the plunger made hollow, further, this guide member is made hollow, and a return spring is incorporated in this guide member, so that the solenoid valve as a whole can be rendered very compact.Moreover, an input port is disposed on an axis, so that the positional relationship of another component as being a counterpart, to which the solenoid valve is mounted, can be simplified.

    摘要翻译： 一种用于液压控制的电磁阀，包括：固定铁芯; 导管; 回春 柱塞 和阀体。 首先，使柱塞立即在静止铁心的柱状凹部的内周上滑动，由此，在通过电流时形成的磁路的磁阻减小，能够相应地增大吸引力。 此外，制成中空的柱塞在引导管的外周上可滑动，并且阀体固定到柱塞的端部并设置在柱塞的端部，使得这些可动构件的重量变轻。 此外，用于引导柱塞（导向管）的滑动的构件设置在柱塞制成中空的内周上，此外，该引导构件制成中空，并且在该引导构件中并入复位弹簧，使得 电磁阀整体上可以非常紧凑。 此外，输入端口设置在轴上，从而可以简化安装电磁阀的作为对方的另一部件的位置关系。