Drill drive arrangement, multiple rotary drive arrangement, and drilling rig for civil engineering, as well as method for operating a drill drive arrangement for civil engineering

Abstract

The invention relates to a drilling drive arrangement (80) for driving a drilling tool (34) for the civil engineering, with a rotary gearbox (41) that has at least two gearbox inputs each for inputting an input torque and is configured to add the input torques and provide them as an output torque at a gearbox output (49) for driving the drilling tool (34), wherein a drive motor unit (42, 43) for generating and providing a motor torque as input torque for the rotary gearbox (41) is mounted or mountable on each of the at least two gearbox inputs and at least one of the mounted drive motor units (42, 43) has a hydraulic motor. At least one of the mounted or mountable drive motor units (42, 43) has an electric motor.

Dependencies are inferred from the claim text.