Drive tool for upper end fitting locking arrangement
    1.
    发明授权
    Drive tool for upper end fitting locking arrangement 失效
    用于上端配件锁定装置的驱动工具

    公开(公告)号:US5461647A

    公开(公告)日:1995-10-24

    申请号:US298813

    申请日:1994-08-31

    IPC分类号: G21C3/334 G21C19/00

    摘要: A tool for use with an integral reusable locking arrangement between the guide tubes and upper end fitting in a nuclear fuel assembly. A positioner on the tool locates the tool on the upper end fitting grillage and aligns a wrench on the tool with projections on a spring collar used in the locking arrangement. The wrench on the lower end of the tool has slots that engage with the reusable locking arrangement on the guide tube upon application of downward pressure on the tool driver. Rotation of the driver causes corresponding rotation of the spring collar on the reusable locking arrangement for locking or unlocking of the upper end fitting in place relative to the guide tubes. Axial and rotational motion of the driver is limited by interaction between a set screw on the positioner and slots in the driver. Upward motion of the driver disengages the wrench from the spring collar for removal of the tool.

    摘要翻译: 一种用于引导管和核燃料组件中的上端配件之间的整体可重复使用的锁定装置的工具。 工具上的定位器将工具定位在上端配件格架上,并将工具上的扳手与在锁定装置中使用的弹簧环上的突起对准。 工具下端的扳手具有槽,其在施加工具驱动器上的向下压力时与导向管上的可重复使用的锁定装置接合。 驾驶员的旋转导致弹簧套环在可重复使用的锁定装置上的相应旋转,以将上端配件相对于导管锁定或解锁到适当位置。 驱动器的轴向和旋转运动受定位器上的固定螺钉和驱动器中的槽之间的相互作用的限制。 驱动器的向上运动使扳手从弹簧圈脱离,以移除工具。