Drill Rig Relocation System

摘要

The present invention discloses a drill rig relocation system. Lift frames are provided as add-ons to existing drill rigs, or as integral openings within the length of the base boxes. A lift cylinder and bearing mat assembly is connected beneath the lift frame or base boxes. Each bearing mat assembly has a slew drive for controlled directional rotation. A torque arrest system allows vertical movement of the torque reaction point as the substructure is elevated to control the orientation and magnitude of forces. In one embodiment, the drill rig is supported on linear sleeve bearings slideably mounted in the bearing mat assemblies. Translation cylinders on the bearing mats expand to move the drill rig by translating the linear sleeve bearings along the shafts.

主权项

1. A drill rig relocation system, comprising:
a first end of a lift cylinder connected to a base box of a drill rig; a bearing housing rotatably connected to a second end of the lift cylinder; a bearing mat, having a ground side and an opposite top side; a slide housing extending above the top side of the bearing mat; a cylindrical slide shaft supported on the slide housing; a linear sleeve bearing mounted in the bearing housing, and positioned on the slide shaft in slidable relation; and, an extendable translation cylinder connected at one end to the top side of the bearing mat, and connected at its opposite end to the bearing housing; and, wherein extension of the translation cylinder results in horizontal displacement between the bearing mat and the bearing housing.