Modular spinner roller
AssigneeCameron International Corporation
InventorBard Henning Kaasin
Life of this patent
Estimating the term…
Abstract
A spinner roller set adapted for use in an apparatus used to connect and disconnect threaded drilling tubulars includes a first and a second modular spinner roller that mounts independent drive and spacer discs on a central shaft. The setup is arranged so that the spinner rollers when in use can engage a small diameter tubular using the same setup as that for engaging a much larger diameter tubular. When a drive disc is in need of replacement, the worn drive disc can be removed from the central shaft and replaced with a new drive disc. The other drive discs and spacers can be reused.
Claims7
A spinner roller set adapted for use in an apparatus used to connect and disconnect threaded drilling tubulars, the spinner roller set comprising:
- a first and a second modular spinner roller, the first and second modular spinner rollers including:
- a central shaft spanning a top to bottom distance of the spinner roller;
- and
- at least two independent drive discs mounted on and removable from the central shaft and spaced apart from one another by a spacer disc that is separately mounted on and removable from the central shaft;
- wherein said drive discs and said spacer discs receive only said central shaft;
- wherein said spacer disc has a different outside diameter than said drive discs
- wherein the drive discs and the spacer disc having a non-circular central opening complementary in shape to the central shaft.
A spinner roller adapted for use in an apparatus used to connect and disconnect threaded drilling tubulars, the spinner roller comprising:
- a central shaft spanning a top to bottom distance of the spinner roller;
- and
- at least two independent drive discs mounted on and removable from the central shaft and spaced apart from one another by a spacer disc that is separately mounted on and removable from the central shaft;
- wherein said spacer disc has a different outside diameter than said drive discs;
- wherein the drive discs and the spacer disc having only a single non-circular central opening complementary in shape to the central shaft.
A method of replacing a worn spinner roller use in an apparatus used to connect and disconnect threaded drilling tubulars, the method comprising the steps of:
- separately removing one or more drive discs and spacers from a central shaft of the spinner roller, at least one of the separately removed drive discs being a worn drive disc in need of replacement wherein said spacers having a smaller outside diameter than said one or more drive discs;
- and
- replacing the worn drive disc with a new drive disc, the new drive disc being mounted on the central shaft;
- and
- reusing and replacing said spacer, said spacer being mounted on the central drive shaft;
- wherein said drive discs and said spacer discs receive only said central shaft.
Dependencies are inferred from the claim text.