Walking substructure device

Details Walking substructure device Walking substructure device

1997-09-16

1999-07-13

Mai, Lanna

Motor vehicles

Special driving device

Stepper

180 85, 180 86, B62D 5702

Patent

active

059213361

ABSTRACT:
A walking substructure device having a drilling rig substructure. A plurality of lifting jacks is provided, each lifting jack having an upper end and a lower end, the upper end connected to the drilling rig substructure. A plurality of roller assemblies is provided, each roller assembly connected to the lower end of one of the jacks, each roller assembly pivotal radially about an axis of the lifting jack. A plurality of jack pads is provided, with each jack pad having a center beam wherein one of the roller assemblies engages the center beam and rolls thereon. A push-pull mechanism extends between each jack pad and each roller assembly in order to move the shoe assemblies in relation to the drilling substructure.

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