利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

72 条记录 (耗时 0.012 秒)

    Continuous ratchet drive
    1.
    发明授权
    Continuous ratchet drive 失效
    连续棘轮传动

    公开(公告)号：US4409865A

    公开(公告)日：1983-10-18

    申请号：US225407

    申请日：1981-01-15

    申请人： Wilhelm F. Krautter ,  John K. Junkers

    发明人： Wilhelm F. Krautter ,  John K. Junkers

    IPC分类号： B25B13/46 ,  B25B13/36 ,  B25B21/00 ,  F16D41/12 ,  F16H31/00

    CPC分类号： B25B23/0078 ,  B25B21/005 ,  Y10T74/1556 ,  Y10T74/1581

    摘要： A ratchet drive comprises a support on which a ratchet gear is mounted turnably about a first pivot axis. A lever is mounted on the support tiltable about a second pivot axis spaced from and parallel to the first pivot axis between a forward stroke and a return stroke. A pair of drive pawls are mounted at one of the ends thereof on the lever tiltable about axes located spaced from and respectively to opposite sides of the second pivot axis and engaging with the other end thereof the ratchet gear, so that when the lever is moved along its forward stroke, one of the drive pawls will engage a tooth of the ratchet gear to turn the latter in one direction while the other pawl moves rearwardly over a tooth and so that during the return stroke the other pawl engages a tooth of the ratchet gear to turn the latter in the same direction while the one pawl moves rearwardly over a tooth. The ratchet drive may be used for turning a threaded connector, in which case a ratchet gear is either provided with a polygonal passage therethrough adapted to engage with the polygonal head of a threaded connector to be turned or with a coaxial projection of polygonal cross section extending beyond the support on which a socket for engaging the head of a threaded connector is exchangeably mounted. The lever may be moved along its forward and its return stroke by a fluid operated cylinder-and-piston unit mounted on the support.

    摘要翻译： 棘轮驱动器包括支撑件，棘轮在其上围绕第一枢转轴线可转动地安装在该支撑件上。 杠杆安装在支撑件上，可绕第二枢转轴线倾斜，第二枢转轴线在前进行程和返回行程之间与第一枢转轴线间隔开并平行。 一对驱动爪安装在其一个端部上的杠杆上，该杆可绕第二枢转轴线间隔开并分别连接到第二枢转轴线的相对侧并且与棘轮的另一端接合，使得当杠杆移动时 沿着其向前行程，驱动爪中的一个将与棘轮的齿接合，以使其在一个方向上转动，而另一个棘爪向后移动到齿上，并且使得在返回行程期间，另一个棘爪接合棘轮的齿 齿轮使后者在同一方向上转动，同时一个爪向后移动到一个齿上。 棘轮驱动器可以用于转动螺纹连接器，在这种情况下，棘轮齿轮或者设置有多边形通道，其中通过该多边形通道，该多边形通道适于与待旋转的螺纹连接器的多边形头部接合，或者与多边形横截面的同轴突起延伸 超出了用于接合螺纹连接器的头部的插座可交换安装的支撑件。 杠杆可以通过安装在支撑件上的流体操作的气缸和活塞单元沿其前方和其返回行程移动。