Patent ID: 8955636
Filing Date: 2015-02-17
Classification: B60L,E21B,Y02T

Abstract:
1. A rock drilling rig which is electrically driven comprising: a carriage having a plurality of wheels for moving the carriage; at least one drilling boom movable by at least one boom actuator in relation to the carriage; at least one drilling unit including a feed beam, a rock drilling machine supported by the feed beam, the rock drilling machine including at least a percussion device and a rotating device, and a feeding device for moving the rock drilling machine on the feed beam; a hydraulic drilling system including at least one hydraulic pump having a pressure energy that drives at least one of the following drilling actuators: the percussion device, the rotating device, the feeding device, and the boom actuator, the hydraulic drilling system converting potential energy of the rock drilling rig to pressure energy during a downhill period of transfer drive; and a drive equipment including at least one electric drive motor and mechanical drive transmission means for transmitting driving power from the drive motor to the wheels, wherein the hydraulic pump of the hydraulic drilling system and the mechanical drive transmission of the drive equipment are driven by at least one common electric motor and are each independently connectable and disconnectable by a clutch to be driven and not to be driven by the electric motor.