Sintered oil retaining bearing and fabrication method thereof
    31.
    发明授权
    Sintered oil retaining bearing and fabrication method thereof 失效
    烧结保油轴承及其制造方法

    公开(公告)号:US06505971B2

    公开(公告)日:2003-01-14

    申请号:US09897523

    申请日:2001-07-02

    Abstract: A sintered oil retaining bearing has a bearing bore through which a rotary shaft is inserted formed at a bearing main unit made of a porous sintered alloy. The inner circumferential wall serving as the bearing bore includes a center inner circumferential wall located at the center region of the inner circumferential wall, and one end side inner circumferential wall and other end side inner circumferential wall, located at one end side and the other end side, respectively, of the center inner circumferential wall in the direction of the rotary shaft. The center inner circumferential wall has a blinded portion where the air permeability is not more than 0.3×10−3 darcy, and air permeability lower than that of the one end side and other end side inner circumferential wall.

    Abstract translation: 烧结保油轴承具有轴承孔,旋转轴通过该轴承孔形成在由多孔烧结合金制成的轴承主体上。 用作轴承孔的内周壁包括位于内周壁的中心区域的中心内周壁,一端侧内周壁和另一端侧内周壁,位于一端侧,另一端 侧分别为中心内周壁的旋转轴方向。 中心内周壁具有透气度不大于0.3×10 -3达西的透气性,并且透气性低于一端侧和另一端侧内周壁的透气性。

    Powder molding device for forming spiral bevel gear
    32.
    发明授权
    Powder molding device for forming spiral bevel gear 失效
    用于形成螺旋锥齿轮的粉末成型装置

    公开(公告)号:US06247912B1

    公开(公告)日:2001-06-19

    申请号:US09444558

    申请日:1999-11-19

    Abstract: A spiral bevel gear having right and left tooth flanks having such a small pitch angle that either right or left ones are not seen in plan from the apex side of cone is molded by a powder molding device so as not to interfere with a die of the device when removed from the die. The die has teeth for molding and is rotatably supported. A fixed guide mechanism for guiding the die is provided. Guide portions of the guide mechanism have a predetermined lead so that the die is rotated guided by the guide portions when the molded article is punched out of the die. Thus, the teeth formed on the molded article reliably disengage from the teeth for molding. This makes it possible to reliably punch the molded article out of the die.

    Abstract translation: 具有左右齿面的螺旋锥齿轮由粉末成形装置模制而成,其具有从锥体的顶点侧的平面中看不到右侧或左侧的左右齿面,从而不会干扰 设备从模具中取出时。 模具具有用于模制的齿并被可旋转地支撑。 提供了用于引导模具的固定引导机构。 引导机构的引导部分具有预定的引线,使得当模制品冲压出模具时,模具被引导部分引导。 因此,形成在模制品上的齿可以与用于模制的齿可靠地脱开。 这使得可以将模制品可靠地冲压出模具。

    Brushless electric machine
    38.
    发明授权
    Brushless electric machine 有权
    无刷电机

    公开(公告)号:US08319469B2

    公开(公告)日:2012-11-27

    申请号:US13299667

    申请日:2011-11-18

    Abstract: The brushless electric machine includes a first drive member (30U) having a plurality of permanent magnets (32U); a second drive member (10) having a plurality of electromagnetic coils and capable of movement relative to the first drive member (30U); and a third drive member (30L) disposed at the opposite side from the first drive member (30U) with the second drive member (10) therebetween. The second drive member (10) has magnetic sensors (40A, 40B) for detecting the relative position of the first and second drive members. The third drive member (30L) has at locations facing the permanent magnets of the first drive member (30U) a plurality of magnetic field strengthening members (32L) for strengthening the magnetic field at the location of the second drive member (10) in conjunction with the permanent magnets.

    Abstract translation: 无刷电机包括具有多个永磁体(32U)的第一驱动部件(30U)。 具有多个电磁线圈并能够相对于第一驱动构件(30U)移动的第二驱动构件(10); 以及第三驱动构件(30L),其与第一驱动构件(30U)的相对侧设置有第二驱动构件(10)。 第二驱动构件(10)具有用于检测第一和第二驱动构件的相对位置的磁传感器(40A,40B)。 第三驱动构件(30L)在与第一驱动构件(30U)的永磁体相对的位置处具有用于在第二驱动构件(10)的位置处加强磁场的多个磁场强化构件(32L) 与永磁体。

    Method for forming spiral bevel gear
    40.
    发明授权
    Method for forming spiral bevel gear 失效
    形成螺旋锥齿轮的方法

    公开(公告)号:US6113848A

    公开(公告)日:2000-09-05

    申请号:US141734

    申请日:1998-08-27

    Abstract: A spiral helical gear having right and left tooth flanks having such a small pitch angle that either right or left ones are not seen in plan from the apex side of cone is molded by a powder molding device so as not to interfere with a die of the device when removed from the die. The die has teeth for molding and is rotatably supported. A fixed guide mechanism for guiding the die is provided. Guide portions of the guide mechanism have a predetermined lead so that the die is rotated guided by the guide portions when the molded article is punched out of the die. Thus, the teeth formed on the molded article reliably disengage from the teeth for molding. This makes it possible to reliably punch the molded article out of the die.

    Abstract translation: 具有左右齿面的螺旋斜齿轮由粉末成型装置模制而成,具有如右侧或左侧所示的左右齿面从锥体的顶端侧看不到平面的左右齿面,以免与 设备从模具中取出时。 模具具有用于模制的齿并被可旋转地支撑。 提供了用于引导模具的固定引导机构。 引导机构的引导部分具有预定的引线,使得当模制品冲压出模具时,模具被引导部分引导。 因此,形成在模制品上的齿可以与用于模制的齿可靠地脱开。 这使得可以将模制品可靠地冲压出模具。

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