System for transferring large loads and method for operating thereof

Abstract

System for transferring large loads and method for operating thereof completely versatile and suitable for any load, regardless its weight and size. The system comprises several rolling paths and several trolleys supporting loads. The trolleys have a roll or skid system through which these move forward along rolling paths, a mean for lifting the load to a small distance from the floor using hydraulic cylinders, and a system for avoiding the overturning, of the pinion-rack type, which also serves for guiding and dragging the trolley.

1 . System for transferring large loads of those using several rolling paths and several trolleys supporting loads and running on these rolling paths, characterized in that each trolley comprises a roll or skid system through which it moves forward along the rolling paths comprising a thin wheel to which a thicker and thinner wheel is joined, a mean for lifting the load to a small distance from the floor using hydraulic cylinders, and a system for avoiding the overturning which also serves for guiding and dragging the trolley. 
     
     
         2 . System for transferring large loads according to  claim 1  characterized in that the rolling paths length is the same as the entire route to be performed by the load. 
     
     
         3 . System for transferring large loads according to  claim 2  characterized in that the wheels forming the rolling paths are made of steel. 
     
     
         4 . System for transferring large loads according to  claim 1  characterized in that the rolling system is a commercial skid. 
     
     
         5 . System for transferring large loads according to  claim 1  characterized in that the hydraulic cylinders are located in two blocks placed on both sides of the skid to which a series of drill-holes is made on its upper face, and the pistons are inserted therein. 
     
     
         6 . System for transferring large loads according to  claim 5  characterized in that the hydraulic fluid of the cylinders is stored in a drill-hole or continuous tube made in the block and perpendicular to the cylinders, which will be the one that, through a small orifice made in said cylinders, injects the hydraulic fluid therein. 
     
     
         7 . System for transferring large loads according to  claim 6  characterized in that all the trolleys running on the same rolling path are connected together by a tube, so that all the tubes distributing the fluid to the pistons are in communication, and the fluid is at the same height, through communicating vessels. 
     
     
         8 . System for transferring large loads according to  claim 1  characterized in that the system for avoiding the derailment comprises a transmission and side guides by rack-pinion. 
     
     
         9 . System for transferring large loads according to  claim 5  characterized in that the underside of each block is fixed to at least one pinion driven by a motor running through a rack located on the thin wheel side, so that it in turn server for guiding and dragging. 
     
     
         10 . Method for operating the system for transferring large loads described in preceding claims comprising the following operations:
 depending on the type of load to be transferred, the number of rolling paths to be needed and the number of trolleys needed in every path are calculated,   the wheels forming the rolling paths are fixed,   then U-shaped profiles are placed on the rolling paths,   on these a sheet of polyethylene or any lightweight and flexible plastic is placed,   if building were needed, the construction on the U-shaped profiles of the structure to be transferred is proceeded or, in case of a concrete platform, the platform to be transferred is concreted, if not, the load is simply placed on the U,   when these operations are completed or when the concrete of the platform is hardened, trolleys are introduced into the hole left by the U,   once the trolleys are under the piece to be transferred, the pistons are lifted so that the entire platform is raised,   with a remote control the motors moving the pinions are connected, and the trolleys with the load are moved through the rolling paths towards where desired,   when the destination is reached, the motor stops, the pressure is taken off the pneumatic cylinders and the load is lowered, the trolleys can then be removed for use elsewhere.