A drive device (1) serves for adjusting an operating element (2) for a valve, a throttle, a blow-out preventor or the like, in particular in the field of gas and oil production, the operating element (2) being actively connected to at least one driving motor (4) via a drive train (3), and at least one transmission changing unit (5) being arranged in the drive train (3) for converting a revolution of the driving motor (4) into a revolution of the operating element (2) and/or a revolution/linear motion converter being arranged for converting the revolution of the driving motor (4) into a linear motion of the operating element (2). In order to also have a very compact design in case of a high possible performance and to simultaneously permit a good thermal distribution within the drive device, so that separate cooling devices for carrying off the generated lost heat are superfluous, the drive train (3) comprises at least one essentially disk- or wheel-shaped revolution introducing device which is actively connected with at least two drive shafts driven by separate driving motors.