Patent ID: 8925658
Filing Date: 2015-01-06
Classification: B62D,E21B,E21F

Abstract:
1. A drill rig relocation system, comprising: a lift frame connectable to each end of a pair of base box sections of a drill rig substructure; a lift cylinder connected to each lift frame, and having an extendable shaft with an extendable end; a bearing housing rotatably connected to the extendable 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 by 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.