Device for handling fuel assemblies within a nuclear reactor core专利检索-燃料组件核能专利检索查询-专利查询网

Device for handling fuel assemblies within a nuclear reactor core

阅读：589发布：2022-11-13

专利汇可以提供Device for handling fuel assemblies within a nuclear reactor core专利检索，专利查询，专利分析的服务。并且The device comprises two arms having synchronized movements, the tubular portions of the two arms being rigidly fixed to each other by means of a sliding connection and capable of being endowed by means of a differential drive system with movements for producing the same effort but applied in the opposite direction in order that the lateral reaction on the grab of the first arm on a fuel assembly should be equal and opposite to the lateral reaction of the cylindrical guide tube of the second arm on the same fuel assembly.，下面是Device for handling fuel assemblies within a nuclear reactor core专利的具体信息内容。

权利要求

1. A DEVICE FOR HANDLING FUEL ASSEMBLIES WITHIN THE CORE OF A NUCLEAR REACTOR, SAID DEVICE BEING CONSTITUTED BY A GROUP OF FUEL ASSEMBLIES PLACED IN ADJACENT RELATION IN THE VERTICAL POSITION AND SURROUNDED BY A REACTOR CONTAINMENT VALUT OR VESSEL STRUCTURE WHICH PROVIDES SUITABLE PROTECTION AGAINST RADIATIONS, WHEREIN SAID DEVICE COMPRISES TWO ARMS HAVING SYNCHRONIZED MOVEMENTS, THE FIRST ARM BEING CONSTITUTED BY A VERTICAL TUBULAR PORTION, A RIGHT-ANGELED HORIZONTAL SUPPORT BRACKET FIXED AT THE END OF THE TUBULAR PORTION WHICH PENETRATES INTO THE REACTOR VESSEL STRUCTURE AND A VERTICAL SLEEVE F OR GUIDING A HANDLING GRAB WHICH IS PROVIDED AT THE OPPOSITE END OF THE SUPPORT BRACKET WITH RESPECT TO THE FIRST ARM, THE SECOND ARM BBEING PROVVIDED WITH A VERTICAL TUBULAR PORTION, A RIGHT-ANGLED HORIZONTAL SUPPORT BRACKET DISPOSED IN THE VERTICAL PLANE CONTAINING THE SUPPORT BRACKET OF THE FIRST ARM, A VERTICAL CYLINDRICAL GUIDE TUBE WHICH IS COAXIAL WITH THE GUIDE SLEEVE OF SAID GRAB, THE TUBULAR PORTIONS OF TWO ARMS BEING RIGIDLY FIXED TO EACH OTHER BY MEANS OF A SLIDING COUPLING AND ENDOWED BY MEANS OF A DIFFERENTIAL DRIVE STYSTEM WITH MOVEMENTS FOR PRODUCING THE SAME EFFORT BUT APPLIED IN THE OPPOSITE DIRECTION IN ORDER THAT THE LATERAL REACTION OF THE GRAB OF THE FIRST ARM ON A FUEL ASSEMBLY SHOULD BE EQUAL AND OPPOSITE TO THE LATERAL REACTION OF THE CYLINDRICAL GUIDE TUBE OF THE SECOND ARM ON THE SAME FUEL ASSEMBLY, THE DIFFERENTIAL STYSTEM FOR ACTUATING THE TWO ARMS COMPRISES A COMMON DRIVING MOTOR FOR A DRIVING RING-GEAR WHICH CARRIES TWO PLANETARY PINIONSS DISPOSED IN MESHING ENGAGEMENTS WITH TWO SUN-GEARS RIGIDLY FIXED TO TWO DRIVEN OUTPUT SHAFTS WHICH ARE DISPOSED IN THE LINE OF EXTENSION OF EACH OTHER AND PROVIDED WITH TWO ELEMENTS FOR DIRECT MOTION TRANSMISSION TO THE VERTICAL TUBULAR PORTIONS OF THE TWO ARMS.

2. A handling device according to claim 1, wherein the sliding coupling between the vertical tubular portion of the two arms is constituted by a transverse stirrup-piece which is rigidly fixed to one of the arms and carries rollers freely mounted on horizontal pins and applied against the surface of the other arm.

3. A handling device according to claim 1, wherein the output shafts of the two sun-gears are each associated with a brake which permits independent operation of either one arm or the other.

4. A handling device according to claim 1, wherein the elements for driving the tubular portions of the two arms are constituted by pinions engaged with racks carried by said tubular portions or by sprockets actuating chains which are connected to said tubular portions at the upper ends thereof.

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Device for handling fuel assemblies within a nuclear reactor core

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