Abstract: A bolting and drilling system comprising a vehicle, a gantry mounted to the vehicle, a boom assembly having a first end mounted to the gantry and a second end having a first quick connector and a second quick connector. The system includes a bolter assembly connectable to the first quick connector, wherein the bolter assembly comprises a stinger, a drill and a bolter for stinging, drilling and bolting a roof of an underground mine. The system includes a drill feed assembly connectable to the second quick connector, wherein the drill feed assembly comprises a drill for drilling a rock face of a heading. The drill feed assembly is longer than the bolter assembly.

Abstract: A rock drilling system comprising a rock drill adapted to hold a drill steel to which a drill bit is connected, a drill feed rail for slidably supporting a drill feed that displaces the rock drill along the drill feed rail, a stinger-supported centralizer assembly for centralizing the drill steel, wherein the stinger-supported centralizer assembly has a centralizer base made of an elastomeric material, and a travelling cradle centralizer assembly slidable over the drill feed rail for centralizing the drill steel, wherein the travelling cradle centralizer assembly has a cradle made of an elastomeric material.

Abstract: A bolting and drilling system comprising a vehicle, a gantry mounted to the vehicle, a boom assembly having a first end mounted to the gantry and a second end having a first quick connector and a second quick connector. The system includes a bolter assembly connectable to the first quick connector, wherein the bolter assembly comprises a stinger, a drill and a bolter for stinging, drilling and bolting a roof of an underground mine. The system includes a drill feed assembly connectable to the second quick connector, wherein the drill feed assembly comprises a drill for drilling a rock face of a heading. The drill feed assembly is longer than the bolter assembly.

Abstract: A rock bolting system rock bolting system comprising a frame supporting a movable bolter feed rail, a bolter feed slidable on the bolter feed rail, the bolter feed having a bolt driver for driving a rock bolt into a drilled hole in a rock face, a plate magazine for storing a plurality of bolt plates, and a plate holder for holding a plate to enable the plate to function as a centralizer to centralize the bolt.

Abstract: A rock drilling and bolting system includes a frame, a drill feed rail rotationally supported on the frame, the drill feed rail having a drill feed slidable on the drill feed rail and a bolter feed rail rotationally supported on the frame, the bolter feed rail having a bolter feed slidable on the bolter feed rail. The system further includes a rotary mechanism comprising a first pivot arm and a parallel second pivot arm that rotationally couples the bolter feed rail to the drill feed rail and an actuator mounted to the frame and the rotary mechanism for simultaneously rotating the drill feed rail and the bolter feed rail between a drilling position for drilling and a bolting position for bolting.

Abstract: A rock drilling system comprising a rock drill adapted to hold a drill steel to which a drill bit is connected, a drill feed rail for slidably supporting a drill feed that displaces the rock drill along the drill feed rail, a stinger-supported centralizer assembly for centralizing the drill steel, wherein the stinger-supported centralizer assembly has a centralizer base made of an elastomeric material, and a travelling cradle centralizer assembly slidable over the drill feed rail for centralizing the drill steel, wherein the travelling cradle centralizer assembly has a cradle made of an elastomeric material.

Abstract: A rock bolting system rock bolting system comprising a frame supporting a movable bolter feed rail, a bolter feed slidable on the bolter feed rail, the bolter feed having a bolt driver for driving a rock bolt into a drilled hole in a rock face, a plate magazine for storing a plurality of bolt plates, and a plate holder for holding a plate to enable the plate to function as a centralizer to centralize the bolt.

Abstract: A bolt centralizer for a bolting feed in a rock bolt system has a flexible body capable of elastically flexing from an upright posture for centralizing a rock bolt to a folded posture that permits a bolting feed to advance. The centralizer includes a passage for guiding the rock bolt into a hole drilled by the rock bolt system. The centralizer also includes a base for fastening the centralizer to a sliding carriage adapted to travel over rails of the bolting feed.

Abstract: A rock drilling and bolting vehicle includes a drill feed adapted to slide on a drill feed rail and a bolter feed adapted to slide on a bolter feed rail. The vehicle includes a first wireless or ultrasonic transmitter disposed on the drill feed rail for transmitting a first signal, a second wireless or ultrasonic transmitter disposed on the drill feed for transmitting a second signal. The vehicle includes first, second and third wireless or ultrasonic receivers each capable of receiving the first signal and the second signal. A processor coupled to the receivers processes the signals to determine positions of the first and second wireless or ultrasonic transmitters.

Abstract: A feed rail for a rock drill is composed of two segments, a first beam defining a first rail segment and a second beam defining a second rail segment. The second beam may be detachably connected to the first beam so that the second beam can be removed altogether from the first beam. This invention enables the feed rail to be shortened, thereby making the feed rail much easier to maneuver in mines.

Abstract: A rock drilling and bolting system comprises a drill feed slidable on a drill feed rail for drilling a hole, a bolter feed slidable on a bolter feed rail, the bolter feed having a main bolt driver for driving a rock bolt, a side-mounted bolt driver mounted to the bolter feed rail, the side-mounted bolt driver being disposed rearwardly of the main bolt driver to receive the rock bolt when there is insufficient space to load the rock bolt in the main bolt driver and to drive the rock bolt partially into the hole, and an indexing mechanism for rotating the main bolt driver into alignment with the rock bolt that is partially driven into the hole, wherein the main bolt driver drives the rock bolt fully into the hole.

Abstract: A screen-handling stinger extends and retracts hydraulically from within a bore of a hydraulic stinger of a rock bolter. The screen-handling stinger has a finger that engages a screen. The screen-handling stinger retracts the screen until it snugly abuts the front face of a pad of the stinger. The screen can then be rotated by the rotation motor of the stinger.

Abstract: A rock drilling and bolting system includes a frame, a drill feed rail rotationally supported on the frame, the drill feed rail having a drill feed slidable on the drill feed rail and a bolter feed rail rotationally supported on the frame, the bolter feed rail having a bolter feed slidable on the bolter feed rail. The system further includes a rotary mechanism comprising a first pivot arm and a parallel second pivot arm that rotationally couples the bolter feed rail to the drill feed rail and an actuator mounted to the frame and the rotary mechanism for simultaneously rotating the drill feed rail and the bolter feed rail between a drilling position for drilling and a bolting position for bolting.

Abstract: A rock drilling and bolting system comprises a drill feed slidable on a drill feed rail for drilling a hole, a bolter feed slidable on a bolter feed rail, the bolter feed having a main bolt driver for driving a rock bolt, a side-mounted bolt driver mounted to the bolter feed rail, the side-mounted bolt driver being disposed rearwardly of the main bolt driver to receive the rock bolt when there is insufficient space to load the rock bolt in the main bolt driver and to drive the rock bolt partially into the hole, and an indexing mechanism for rotating the main bolt driver into alignment with the rock bolt that is partially driven into the hole, wherein the main bolt driver drives the rock bolt fully into the hole.

Abstract: A bolt centralizer for a bolting feed in a rock bolt system has a flexible body capable of elastically flexing from an upright posture for centralizing a rock bolt to a folded posture that permits a bolting feed to advance. The centralizer includes a passage for guiding the rock bolt into a hole drilled by the rock bolt system. The centralizer also includes a base for fastening the centralizer to a sliding carriage adapted to travel over rails of the bolting feed.

Abstract: A rock bolting system comprises independently movable hydraulic stinger, drill feed and bolting feed. The stinger is hydraulically extended to sting or engage the face of the rock. With the stinger stinging the rock face, the drill feed drills a hole in the rock. With the stinger still stinging the rock face, the bolting feed is indexed into position and a rock bolt is installed in the hole. A flexible elastomeric bolt centralizer may be mounted to the bolting feed to guide the rock bolt into the hole drilled by the drill feed.

Abstract: A screen-handling stinger extends and retracts hydraulically from within a bore of a hydraulic stinger of a rock bolter. The screen-handling stinger has a finger that engages a screen. The screen-handling stinger retracts the screen until it snugly abuts the front face of a pad of the stinger. The screen can then be rotated by the rotation motor of the stinger.

Abstract: A foldable feed rail for a rock drill is composed of two segments, a first beam defining a first rail segment and a second beam defining a second rail segment. The second beam may be pivotally connected to the first beam with a hinge to enable the second beam to be folded relative to the first beam. Alternatively, the second beam can be detachably connected to the first beam so that the second beam can be removed altogether from the first beam. This invention enables the feed rail to be shortened, thereby making the feed rail much easier to maneuver in mines.

Abstract: A feed rail for a rock drill is composed of two segments, a first beam defining a first rail segment and a second beam defining a second rail segment. The second beam may be detachably connected to the first beam so that the second beam can be removed altogether from the first beam. This invention enables the feed rail to be shortened, thereby making the feed rail much easier to manoeuvre in mines.

Abstract: A rock bolting system comprises independently movable hydraulic stinger, drill feed and bolting feed. The stinger is hydraulically extended to sting or engage the face of the rock. With the stinger stinging the rock face, the drill feed drills a hole in the rock. With the stinger still stinging the rock face, the bolting feed is indexed into position and a rock bolt is installed in the hole. A flexible elastomeric bolt centralizer may be mounted to the bolting feed to guide the rock bolt into the hole drilled by the drill feed.