US 2026/0168337 A1Published application

Compact Spinner Assembly

OwnerStephen Francis Farkasdiinventor

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Abstract

A compact spinner assembly for rotating tubulars, such as pipes or casings, particularly in drilling operations, is provided. The compact spinner assembly includes a first arm and a second arm, each having a drive roller and the ability to pivot to retain and rotate a tubular. The assembly includes hydraulic actuators for adjusting the arms between open and closed positions, allowing for secure engagement with tubulars of varying diameters without manual adjustment. A motor operably connected via a power transmission system with chains, sprockets, and gears rotates the drive rollers in both clockwise and counterclockwise directions, enabling efficient and continuous rotation of the tubular. The compact design allows for mounting the assembly within confined spaces such as drilling masts, enhancing worker safety and increasing productivity by facilitating hands-free operation and reducing the need for manual handling.

Claims20

Dependent claims

A compact spinner assembly for rotating a tubular comprising:

a first arm having a first roller and a second arm having a second roller;
wherein the first and second arms form a tubular region sized to receive the tubular therein;
wherein the first and second arms are configured to adjustably and cooperatively retain the tubular within the tubular region;
wherein the first and second arms are configured to transition between an open and closed position, wherein in the open position the arms are moved away from each other to enlarge the tubular region and in the closed position the arms are moved towards each other to secure the tubular against the first and second rollers;
one or more fixed rollers configured to urge the tubular against the first and second rollers when in the closed position;
a motor configured to rotate the first and second rollers, wherein the closed position the first and second rollers engage the tubular to cooperatively rotate the tubular;
wherein at least one of the first roller and the second roller is movable independent of the one or more fixed rollers;
wherein the motor is operably connected to the first and second rollers via a power transmission system.

5 more elements

Dependencies are inferred from the claim text.