Modular rotary drill head

Details Modular rotary drill head Modular rotary drill head

E - Fixed Constructions

21

B

E21B 3/02 (2006.01) E21B 7/02 (2006.01)

Patent

CA 2738008

A modular base assembly for a rotary drill head includes a drive flange assembly having a tubular drive shaft configured to engage at least a lower drive interface, a gear housing supporting the drive flange assembly, and a plurality of interchangeable gear pinions selectively coupled to the drive flange assembly.

L'invention concerne un ensemble de base modulaire destiné à une tête de forage rotative, qui comporte un ensemble bride d'entraînement ayant un arbre d'entraînement tubulaire destiné à venir en prise avec au moins une interface d'entraînement inférieure, un boîtier d'engrenage supportant l'ensemble bride d'entraînement, et plusieurs pignons d'engrenages interchangeables couplés sélectivement à l'ensemble bride d'entraînement.

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