device for automatic transfer of the auction of puncturing of a tower of oil or similar survey

摘要

The device enables the automatic transfer of drilling rods held in the vertical position inside a derrick to a horizontal position near to a storage area and the reverse transfer operation, and comprises a carriage provided with bistable chucks for holding a triple set of rods during transfer. The carriage moves along two pairs of rails; the first pair of rails is horizontal, the second pair of rails starts off as an inclined curve through an angle of 30 DEG to 45 DEG in relation to the horizontal position and coming into the vertical position near the derrick, thus, the center of gravity of the load carriage describes a straight line.