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1. 发明授权

US4462286A Portable slotting device 失效
标题翻译：便携式开槽装置
公开(公告)号：US4462286A
公开(公告)日：1984-07-31
申请号：US452605
申请日：1982-12-23
申请人： Herman H. Erhard
发明人： Herman H. Erhard
IPC分类号： B23B41/00 , B23B41/06
CPC分类号： B23B41/00 , Y10T82/125
摘要： A portable slotting device is used to cut a conical slot in a propellant grain of a rocket motor. A telescoping arm having a cutter thereon is mounted at an angle upon a rotating shaft held in position by a housing attached to said motor. Pressurized fluid is fed to the telescoping arm for providing the motive force to extend the cutter. A control cable is attached to one of two extension arms in the telescoping arm and to an adjusting knob. As the drive shaft is rotated, the adjusting knob is unthreaded from a rod having the control cable attached thus allowing the control cable to extend the telescoping arm. The pressurized fluid forces the extension arms out while the control cable restrains movement. The cutter thus moves in a spiraling conical motion paring out propellant grain.
摘要翻译：便携式开槽装置用于切割火箭发动机的推进剂颗粒中的锥形槽。在其上具有切割器的伸缩臂以一定角度安装在通过附接到所述马达的壳体保持就位的旋转轴上。加压流体被馈送到伸缩臂以提供用于延伸切割器的动力。控制电缆连接到伸缩臂中的两个延伸臂中的一个和调节旋钮。当驱动轴旋转时，调节旋钮与连接有控制电缆的杆无螺纹连接，从而允许控制电缆延伸伸缩臂。当控制电缆限制运动时，加压流体迫使伸出臂伸出。因此，切割器以螺旋状的锥形运动移动推出推进剂颗粒。

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