In combination a drilling mast and a top drive system for a drilling rig having a drill floor with a well center. The drilling mast has a U-shaped horizontal cross section with a left-hand mast wall, a rear mast wall, and a right-hand mast wall, and with an open front side. Each of the mast walls is provided with one or more vertical rails that are, in use of the drilling rig, parallel to a vertical firing line that extends through the well center. The top drive system comprises a traveling carriage and a top drive unit supported by said carriage. A left-hand fingerboard device is mounted to the left-hand mast wall and a right-hand side fingerboard device is mounted to the right-hand mast wall.

In combination a drilling mast and a top drive system for a drilling rig having a drill floor with a well center. The drilling mast has a U-shaped horizontal cross section with a left-hand mast wall, a rear mast wall, and a right-hand mast wall, and with an open front side. Each of the mast walls is provided with one or more vertical rails that are, in use of the drilling rig, parallel to a vertical firing line that extends through the well center. The top drive system comprises a traveling carriage and a top drive unit supported by said carriage. A left-hand fingerboard device is mounted to the left-hand mast wall and a right-hand side fingerboard device is mounted to the right-hand mast wall.

A lubricating system is disclosed. The lubricating system includes: at least one first to-be-lubricated component, wherein an inlet of each of the at least one first to-be-lubricated component is connected with a first lubrication oil inlet pipe, and an outlet of the each of the at least one first to-be-lubricated component is connected with a first lubrication oil outlet pipe; and at least one second to-be-lubricated component, wherein an inlet of each of the second to-be-lubricated component is connected with a second lubrication oil inlet pipe, and an outlet of the each of the at least one second to-be-lubricated component is connected with a second lubrication oil outlet pipe. An operating pressure of the each of the at least one first to-be-lubricated component is different from a working pressure of the each of the at least one second to-be-lubricated component.

An apparatus for feeding a tubular object inside a drill hole, a rock drilling rig and a method of supporting mouth openings of drill holes is provided. The apparatus includes a support device for supporting an elongated tube element blank having the potential for several successive tube inserts. A front end of the tube element blank is moved longitudinally inside a drill hole by means of a feeding device. Thereby, the drill hole is provided with a protective section extending a limited longitudinal dimension towards a bottom of the drill hole. The apparatus further includes a separation device for detaching the mentioned tube inserts one by one from the tube element blank.

A gear feed system includes a carrier and a mast mounted on the carrier. The mast includes a pair of panels forming opposing sides of the mast along a central axis of the mast. Each of the pair of panels includes a fixed rack attached to an interior surface of the each of the panels. A gear carrier pair includes a gear, a movable rack assembly, and a cylinder. Each of the gear is coupled to one of the panels and each of the gear couples one of the fixed racks to one of the movable rack assemblies (hoist tubes). The cylinder and the movable rack assembly are coupled via the gear wherein an axial movement of the cylinders causes a corresponding axial displacement of the movable rack assemblies.

A method may include obtaining power production and fuel consumption data of a first piece of rig equipment through a flow meter, where the rig equipment includes a plurality of pieces of equipment. The method further includes feeding the power production and fuel consumption data of the first piece of rig equipment into a real-time monitoring system of the rig via the flow meter. The method further includes determining an energy efficiency, based on real-time performance, of the first piece of rig equipment using a consumption efficiency model. The method further includes comparing the energy efficiency of the first piece of rig equipment against continuously updated historical data of the first piece of rig equipment by a real-time database monitoring system. The method further includes identifying deficiencies of the first piece of rig equipment in real-time and determining maintenance or replacement of the first piece of rig equipment.

A component for a rock breaking system is magnetized into a state of remanent magnetization. The remanent magnetization of the component has a predetermined varying magnetization profile relative to geometry of the component, the varying magnetization profile describing varying magnetization intensity in the component relative to the geometry of the component.

A drilling and bolting device for driving a drill element into a rock surface includes a frame, a drive unit supported for movement relative to the frame, and an actuator for moving the drive unit relative to the frame. The drive unit includes a motor and a chuck for engaging the drill element. The chuck is driven by the motor. In some aspects, the actuator includes a magnet exerting a magnetic force on the block to provide magnetic coupling between the actuator and a block supporting the motor. In some aspects, the actuator is positioned at least partially within an elongated member of the frame. In some aspects, the drive unit includes a switched reluctance motor including a stator and a rotor supported for rotation relative to the stator, and the rotor is directly coupled to the chuck.

Systems and methods for estimating a hardness of a rock mass during operation of an industrial machine. One system includes an electronic processor configured to receive a rock mass model and to receive live drilling data from the industrial machine. The electronic processor is also configured to update the rock mass model based on the live drilling data and to estimate a drilling index for a hole based on the updated rock mass model. After estimating a drilling index for the hole, the electronic processor is also configured to set a blasting parameter for the hole based on the estimated drilling index.

An extreme load creeper interface comprising a planar roller array wherein a plurality of extreme load rollers with parallel rotational axes are dispersed both laterally and longitudinally within the plane, so as to fractionalize a weight applied perpendicular to the plane, and thereby promote longitudinal motion of the roller array in a direction perpendicular to the plurality of roller rotational axes.