Control rod drive handling assembly for a nuclear reactor
AssigneeGeneral Electric Company
InventorJames E. Burner
Life of this patent
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Abstract
A positioning apparatus for a CRD handling assembly for a nuclear reactor. The positioning apparatus includes at least one linear slide rail, a drive screw coupled to the at least one slide rail, an elevator movably coupled to the drive screw, and at least one linear bearing attached to the elevator. The linear bearing is slidably coupled to the at least one slide rail.
Claims21
A positioning apparatus for a control rod drive (CRD) handling assembly for a nuclear reactor, said positioning apparatus comprising:
- at least one linear slide rail;
- a drive screw coupled to said at least one slide rail;
- an elevator movably coupled to said drive screw;
- and
- at least one linear bearing attached to said elevator and slidably engaged with said at least one slide rail.
A handling assembly for a CRD for a nuclear reactor, said handling assembly comprising:
- a trunnion cart;
- a tower coupled to said trunnion cart;
- a drive screw coupled to said tower;
- an elevator movably coupled to said drive screw;
- and
- at least one slide rail coupled to said tower, said at least one slide rail aligning said elevator.
A handling assembly for a CRD for a nuclear reactor, said handling assembly comprising:
- a trunnion cart comprising a plurality of trunnion axles;
- a tower pivotally coupled to said trunnion cart, said tower sized to receive a CRD, said tower comprising a wheel assembly, a first tie plate, a second tie plate, a lower drive screw bearing, an upper drive screw bearing, and a drive screw thrust bearing;
- a threaded drive screw rotatably coupled to said tower by said lower drive screw bearing, said upper drive screw bearing, and said drive screw thrust bearing,
- said drive screw including a drive screw operator;
- an elevator comprising a plurality of linear bearings, a CRD support plate, a nut recess, and a elevator nut received in said nut recess, said elevator nut threadedly engaged with said drive screw;
- said drive screw retaining said elevator nut in said nut recess;
- and
- a plurality of linear slide rails coupled to said tower, each said slide rail slidably engaged to one of said elevator linear bearings, said linear slide rails aligning said elevator.
Dependencies are inferred from the claim text.