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    Stationary type constant velocity universal coupling
    1.
    发明专利
    Stationary type constant velocity universal coupling 审中-公开
    静态类型恒定速度通用耦合

    公开(公告)号：JP2003004062A

    公开(公告)日：2003-01-08

    申请号：JP2001191553

    申请日：2001-06-25

    Applicant: Ntn Corp ,  エヌティエヌ株式会社

    Inventor： NAKAGAWA AKIRA ,  IKEI KATSUYUKI ,  KURA HISAAKI

    IPC: F16D3/227

    Abstract: PROBLEM TO BE SOLVED: To enhance allowable load torque of a stationary type constant velocity universal coupling and secure enough depth in a track groove and thus prevent a ball from riding on and beating a spherical part by slipping off the track groove.
    SOLUTION: The present invention is the stationary type constant universal joint which is constituted of an outer race 1, an inner race 2, eight balls 3 and a retainer 4 and of which center O
    1 of part position, in which grooved bottom in a guided groove 1b of the outer race 1 is curve shaped, and of which center O
    2 of part position, in which grooved bottom in a guided groove 2b of the inner race 2 is curve shaped, are offset in opposite side by equidistance F (=F
    0 =F
    i ) in an axial direction against center of a sphere on inside diameter face 1a and center of a sphere on outside diameter face 2a, respectively, and ratio R1 (=F/PCR) of amount of the offset F versus length of line portion (PCR) connecting the center O
    1 of the part position, in which grooved bottom in a guided groove 1b of the outer race 1 is curve shaped, or the center O
    2 of the part position, in which grooved bottom in a guided groove 2b of the inner race 2 is curve shaped, with center O
    3 of the ball 3 is within 0.069≤R1≤0.121 and contact angle α between each guided groove 1b, 2b and the ball 3 is set to 37° or less.
    COPYRIGHT: (C)2003,JPO

    Abstract translation: 要解决的问题：为了增加静止型等速万向接头的允许负载转矩，并且在轨道槽中确保足够的深度，并且因此通过滑出轨道槽来防止球骑乘并打击球形部分。 解决方案：本发明是由外圈1，内座圈2，八个球3和保持器4构成的固定式恒定万向接头，其中部分位置的中心O1，其中在引导槽 外圈1的1b是曲线形状的，并且其中部位置的中心O 2在内圈2的导向槽2b中的凹槽底部弯曲成形，在相反侧以等距离F（= F0 = Fi ）分别在内径面1a上的球体的中心和外径面2a上的球的中心的轴向方向上，偏移量F与线部分的长度的比率R1（= F / PCR）（PCR ），其中连接外圈1的导向槽1b中的凹槽底部的部分位置的中心O1或部分位置的中心O2，其中内圈的导向槽2b中的凹槽底部 2是曲线形状，球3的中心O 3在0.069 <= R1内 <= 0.121，各引导槽1b，2b与球3之间的接触角α设定为37度。 或更少。

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