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2. 发明授权

US4539174A Fuel pin transfer tool 失效
标题翻译：燃油销转移工具
公开(公告)号：US4539174A
公开(公告)日：1985-09-03
申请号：US427621
申请日：1982-09-29
申请人： Richard S. Patenaude
发明人： Richard S. Patenaude
IPC分类号： G21C19/10
CPC分类号： G21C19/10 , Y10S294/906
摘要： A fuel pin transfer tool has a latching device of the collet type attached to a first member movable vertically through a long work stroke enabling a fuel pin in an under water assembly to be engaged and withdrawn therefrom or placed therein and released. The latching device has a collet provided with a plurality of resilient fingers having cam portions normally spaced apart to receive the upper end of a fuel pin between them and a second member, movable vertically through a short stroke relative to the first member is provided with cam portions engageable with those of the fingers and is yieldably and resiliently held in a raised position in which its cam portions engage those of the fingers and force the fingers into their pin-gripping positions. When a predetermined force is applied to the second member, it is so moved that its cam portions are disengaged from the cam portions of the fingers permitting the latter to move into their normal relationship in which a gripped pin is released or another pin received but with their pin-gripping relationship positively re-established and maintained once the force on the tubular member is lessened. Movement of the first member in either direction and movement of the second member into its raised position is attended by forces inadequate to affect the integrity of fuel pin cladding. That force is applied in the preferred embodiment, by a power operated actuator which is within the upper portion of a housing and, in the preferred embodiment, carried by the long stroke member but always in the upper housing portion which is of a material sufficiently translucent to enable the actuator to be observed throughout the work stroke and is sufficiently light in weight to prevent the tool from being top heavy.
摘要翻译：燃料销转移工具具有夹头类型的锁定装置，该闩锁装置连接到通过长的工作行程垂直运动的第一构件，使得下水组件中的燃料销能够接合并从中抽出或放置在其中并被释放。闩锁装置具有设置有多个弹性指状物的夹头，其具有通常间隔开的凸轮部分，以容纳在它们之间的燃料销的上端和相对于第一构件在短行程中垂直移动的第二构件设置有凸轮可与手指的那些接合的部分，并且可屈服地和弹性地保持在升高位置，在凸起位置中，其凸轮部分接合手指的凸起部分并且将手指压入其夹持位置。当预定的力施加到第二构件时，其被移动，使得其凸轮部分从指状物的凸轮部分脱离，从而允许凸轮部分移动到它们的正常关系中，在该关系中夹持的销被释放，或者另一个销被接收，一旦管状构件上的力减小，它们的夹紧关系就被肯定地重新建立和维持。第一构件在任一方向上的移动和第二构件到其升高位置的运动由不足以影响燃料销包层的完整性的力来承受。在优选实施例中，通过位于壳体的上部内的动力操作的致动器施加该力，并且在优选实施例中，由长行程构件承载，但总是在上壳体部分中，其具有足够半透明的材料以使致动器能够在整个工作行程中被观察并且重量足够轻以防止工具被顶部重重。

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