| CPC E21B 17/073 (2013.01) | 13 Claims |
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1. A drill rod for transferring a torque comprising
an elongate rod base body, along which runs at least one base line for a fluid and/or electric current and/or data,
an upper suspension device for suspending the drill rod from a support element,
a rotary bearing, which is arranged between the suspension device and the rod base body, wherein the rod base body is mounted rotatably relative to the suspension device about a rod longitudinal axis, and
a rotary feedthrough, through which a line connection is formed between at least one feed line, which is fixed relative to the support element, and the at least one base line of the rotatably-mounted rod base body,
wherein
the rotary bearing comprises an axial bearing which is arranged above or below the rotary feedthrough,
wherein
the rotary feedthrough and the rotary bearing, which comprises the axial bearing, are spatially and functionally separate,
the rotary bearing is arranged axially distanced from the rotary feedthrough,
the rotary feedthrough comprises a sleeve-shaped outer part, which is connected to the rod base body torque proof, and an inner part, which is arranged within the outer part and is connected to the suspension device torque proof, and
the inner part of the rotary feedthrough is arranged on a spike-like portion of the suspension device, wherein the spike-like portion of the suspension device extends downwardly through the rotary bearing, which is configured in annular shape.
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