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    Sintered pulley hub construction and method of making same
    41.
    发明授权
    Sintered pulley hub construction and method of making same 失效
    烧结皮带轮轮毂结构及其制作方法

    公开(公告)号：US4056014A

    公开(公告)日：1977-11-01

    申请号：US680427

    申请日：1976-04-26

    申请人： Derald H. Kraft

    发明人： Derald H. Kraft

    IPC分类号： B22F7/06 ,  B23P15/22 ,  F16H55/44 ,  F16H55/36

    CPC分类号： B23P15/22 ,  B22F7/06 ,  F16H55/44 ,  B22F2998/00 ,  Y10S474/902 ,  Y10T29/49453 ,  Y10T29/49456

    摘要： A sintered pulley hub construction for mounting on a bottom wall of a sheet metal pulley cup. A pair of tubular members is pressure formed in a green compact state from a metal powder mixture. One of the members has a cylindrical body which terminates at one end in an outwardly extending annular flange which forms a hub pulling flange. The other member has an interior annular cavity formed in one end and a radially outwardly extending annular flange formed on the other end. The cylindrical body of the one member is telescopically received within the annular cavity of the other member. The members are joined by sintering to form an integral homogeneous body. The outer surface of the other member has a cylindrical portion extending axially between the radial end flange and an annular shoulder for receiving an axially extending flange of a pulley cup, with the shoulder providing a zone for welding the pulley cup to the hub. The method of forming the improved hub includes the steps of separately pressure-forming each of the tubular members in a green compact state in a pair of molds. Then a cylindrical end portion formed on one of the tubular members is telescopically mounted within an annular interior cavity formed in one end of the other tubular member. The joined members then are sintered in a furnace and the green compacted members cohere to each other and form an integral homogeneous member.

    摘要翻译： 一种用于安装在钣金滑轮杯的底壁上的烧结滑轮轮毂结构。 一对管状构件是从金属粉末混合物压制形成的压实状态。 其中一个构件具有圆柱体，其在一端处于形成轮毂拉动凸缘的向外延伸的环形凸缘中。 另一个构件具有在一端形成的内部环形空腔和在另一端形成的径向向外延伸的环形凸缘。 一个构件的圆柱体可伸缩地容纳在另一个构件的环形空腔内。 这些构件通过烧结连接以形成整体均匀的体。 另一个构件的外表面具有在径向端凸缘和环形肩部之间轴向延伸的圆柱形部分，用于接收滑轮杯的轴向延伸的凸缘，肩部提供用于将滑轮杯焊接到轮毂的区域。 形成改进的轮毂的方法包括以下步骤：在一对模具中以压坯状态分别加压成形管状件。 然后，形成在其中一个管状构件上的圆柱形端部可伸缩地安装在形成在另一管状构件的一端中的环形内腔内。 然后将接合的构件在炉中烧结，并且将生坯压实构件彼此固定并形成一体的均匀构件。