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.

A handling system for handling expendables for a drill rig arranged for automated handling of the expendables is provided. The handling system includes a pickup mechanism configured to move an expendable back and forth between a magazine of the drill rig for expendables and a loading position within the drill rig, a first outer guide device configured to receive and guide the expendable, optionally grip and hold the trailing portion of the expendable when the expendable is in an outer extreme position, and a second outer guide device provided adjacent the first outer guide device between the first outer guide device and an inner guide device.

A cable handling device for an underground mining drill rig, wherein the cable handling device includes a first feeding assembly having a cable bending guide and a first feeding device configured to receive a cable, grip the cable and feed the cable in a first direction into the cable bending guide. The cable bending guide is configured to guide the cable along an arcuate path such that the cable exits the cable bending guide in a second direction offset a predetermined angle to the first direction.

A setting device for a self-drilling anchor bolt of the present invention includes: a drive shaft, one end thereof having a shank for connecting to an impact tool, and another end being a setting part for pushing the self-drilling anchor bolt axially; a coupling, partially surrounding the drive shaft along an axis, and being supported on the drive shaft in such a way as to be incapable of relative rotation while being axially moveable at least locally; and a releasable locking component, disposed between the drive shaft and the coupling; in a locked position, the locking component is coupled to an extremity of an anchor rod such that the anchor rod is fed axially with rotational striking into a receiving material, and in a released position, the drive shaft strikes a sleeve to advance axially along the anchor rod and expand at an expansion part.

An apparatus serves to grip a cable for delivery into a borehole in a surface of a mine passage in connection with an actuator, such as a drill mast having a carriage capable of being advanced and retracted along the drill mast. A pusher is formed from a pair of jaws for engaging the cable. The jaws may be biased toward a first position for engaging the cable during an advance of the carriage, and automatically movable to a second position for releasing from engagement with the cable during a retraction of the carriage. The pusher may be pivotally mounted to a carriage capable of being advanced and retracted along a drill mast, which movement may cause the jaws to self-actuate for engaging and advancing the cable during an upstroke and release therefrom during a downstroke. Related methods are also disclosed.

A screen handling system is provided for a rock drilling device including a feed assembly, at least one rail system supporting the feed assembly for translational movement relative to a boom along a first axis, and an actuator for advancing a bit or bolt into a rock face parallel to the first axis. The screen handling system includes a pad disposed proximate the bit or bolt, a block having a bore that defines a second axis parallel to the first axis, a gripper at least partially disposed within and axially moveable relative to the bore in a direction along the second axis, and a drive mechanism coupled to the block that is capable of continuously rotating the pad about the second axis to a desired orientation.

A composite support structure, a construction system, and a method, the composite support structure includes a plurality of arc plate rings that are longitudinally arranged along a roadway. A concrete fill steel tube support is arranged on an inner side or an outer side of each arc plate ring. The arc plate ring is formed by splicing a plurality of arc plates. Each concrete fill steel tube support is formed by splicing a plurality of steel pipe sections. The arc plate rings and the concrete fill steel tube supports are capable of jointly supporting walls of the roadway. The support structure has high bearing capability, high construction efficiency of a construction system, and low labor intensity.

A mining or construction vehicle comprising a boom extending in a first direction, which boom, via a first and a second rotation device, is connected to a hydraulic device arranged on a mounting device arranged at a free end of said boom, the first rotation device being arranged to provide a rotation around a first axis that is substantially parallel to the first direction, and a second rotation device being arranged to provide a rotation around a second axis that is arranged at an angle with respect to the first axis. Hydraulic conduits for supply of hydraulic fluid to said hydraulic device on said mounting device are arranged through at least one of the first and second rotation devices.

A boom for supporting a drilling and bolting tool includes a first portion, a second portion, an actuator for moving the second portion relative to the first portion in a direction parallel to the longitudinal axis. The second portion includes an elongated shaft having a proximal end and a distal end, the proximal end supported by a shaft support for movement relative to the first portion in a direction parallel to the longitudinal axis, the distal end configured to support the drilling and bolting tool.

A locking dog assembly including a body including inner cavity with a lower opening, a first locking dog at least partially extending through a first side of the body and displaceable into and out of the inner cavity, a second locking dog at least partially extending through a second side of the body, opposite the first side, and displaceable into and out of the inner cavity, and a mechanism for simultaneous displacement of the first and second locking dogs with mechanical advantage.