Shipping package up-ender
View Patent ↗A reusable up-ending device for loading or unloading nuclear fuel assembly shipping packages. The device has a translating base mounted to a fixed beam structure and two stabilizing arms affixed to a mounting fixture on the base that is secured to the operating floor. The stabilizing arms include a spring dampener and have a simple elbow joint that straightens after the package is up righted. Translation is achieved by means of a hand adjustable lead screw and enables the base to be most advantageously positioned. The shipping package is inserted into pivot mount blocks located at the front of the base and the package is secured at the pivot mount blocks by means of a trunnion and at the support arms by means of a locking pin. Once the package is up-righted the elbows on the support arms are locked in place.
1. An elongated nuclear component shipping package up-ending device for supporting the shipping package as it is translated between a horizontal and vertical orientation, comprising:
a base member having a top surface, a first end, a second end, a first side and a second side;
a first yoke affixed to the base member proximate the intersection of the first end and first side of the base member and formed to pivotally connect to an underside of a first end on a first side of the shipping package;
a second yoke affixed to the base member proximate the intersection of the first end and the second side of the base member and formed to pivotally connect to an underside of the first end on a second side of the shipping package;
a first support arm pivotally connected to the base member proximate the intersection of the second end and first side of the base member and formed to pivotally connect to a first side of the shipping package at a location spaced a first distance from the first end of the shipping package, the first support arm having at least two ligaments connected through a pivoting first joint;
a second support arm pivotally connected to the base member proximate the intersection of the second end and second side of the base member and formed to pivotally connect to a second side of the shipping package at a location spaced the first distance from the first end of the shipping package, the second support arm having at least two ligaments connected through a pivoting second joint; and
means for securing the up-ending device in position as the shipping package is translated between the horizontal and vertical orientation.
2. The up-ending device of claim 1 wherein the first support arm is connected to the base member and through the first joint so that the first arm pivots through a first plane and the second support arm is connected to the base member and through the second joint so that the second support arm pivots through a second plane.
3. The up-ending device of claim 1 wherein at least one of the first support arm and the second support arm includes a lock that when activated locks the ligaments in position when the ligaments are fully extended to a coaxial extent.
4. The up-ending device of claim 3 wherein the lock on the first support arm comprises an eyelet on either side of the first joint with an aperture in each eyelet aligned coaxially with the aperture in the other eyelet when the ligaments on the first support arm are fully extended so that a locking pin can be inserted through the eyelets and lock the ligaments of the first support arm in position when the first support arm is fully extended.
5. The up-ending device of claim 1 wherein the ligaments of the first support arm are spring biased in a fully extended position.
6. The up-ending device of claim 5 wherein at least one of the ligaments of the first support arm is a hollow tube including a spring anchored at one end within and extending through the hollow tube and connected at another end of the spring to the other ligament across the first joint.
7. The up-ending device of claim 1 including a track parallel to the first side and second side of the base member wherein the base member can translate along the track in a direction perpendicular to the first end and the second end of the base member.
8. The up-ending device of claim 7 including means for translating the base member along the track.
9. The up-ending device of claim 8 wherein the means for translating the base member along the track is a worm screw drive.
10. The up-ending device of claim 1 including a trunnion for securing a leg on the shipping package to the first yoke.
11. The up-ending device of claim 1 including a lock pin for connecting the first side of the shipping package at the location spaced the first distance from the first end of the shipping package.
12. The up-ending device of claim 1 wherein the means for securing the up-ending device in position comprises bolts that bolt the up-ending device to a floor structure.