| 摘要 |
An oil well drilling rig mover is formed from a pair of laterally spaced dollies detachably connected by braces between them. Each of the dollies includes a beam for resting on a support, and a pair of laterally spaced wheels at each end of the beam. An arm extends outwardly from the outer end of a tiltable support member that is pivotally connected to the end of the beam beneath it. The arm can be connected to the support member in either of two laterally spaced positions. Extending downwardly from the outer end of each arm is a rotatable shaft, the lower end of which is connected to the central portion of the axle for the wheels. The support members at the opposite ends of a beam can be tilted away from each other to lift the beam. The two beams and the braces between them form a skid base for a drilling rig which can be moved laterally by turning the shafts 90 degrees. |
