Resin nozzle positioner
AssigneeOldenburg Cannon, Inc.
InventorPerry L. Coombs
Life of this patent
Estimating the term…
Abstract
A resin nozzle positioner for a rock bolter, having a frame supporting feed tracks traversed by a drill and a bolt driver, has a resin nozzle that guides a resin sausage into a hole drilled along a work axis. A positioner base is fixed to the frame and two arms are pivotably connected to the positioner base and to a nozzle block, to which the resin nozzle is mounted. The arms remain parallel and move such that the resin nozzle remains parallel to the work axis while moving along an arc between a retracted position, where the resin nozzle is spaced apart from the work axis, and an extended position, where the resin nozzle is aligned with the work axis. An actuator operably connected to two elements selected from the arms, the positioner base, and the nozzle block serves to move the resin nozzle.
Claims15
A resin nozzle positioner for a rock bolter having a frame which supports at least one feed track on which a rock drill is advanced along a work axis toward a rock surface to bore a bolt hole into the rock surface, and on which a bolt driver is advanced along the work axis to drive a bolt into the bolt hole, the resin nozzle positioner comprising:
- a positioner base mounted so as to be fixable with respect to the frame;
- a pair of arms, each of said pair of arms terminating in an arm base end region and an arm free end region, said arm base end region of each of said pair of arms being pivotably attached to said positioner base so as to pivot about a base pivot axis, said base pivot axes being normal to the work axis and spaced apart at a separation S;
- a nozzle block pivotably attached to said arm free end region of each of said pair of arms such that said arm free end region pivots about a block pivot axis, said block pivot axes being normal to the work axis and spaced apart from each other at said separation S, said base pivot axis and said block pivot axis for each of said pair of arms being spaced apart at a separation L which defines the effective length of said pair of arms, thereby assuring that said pair of arms are pivotable and remain at all times substantially parallel to each other;
- a resin nozzle having a nozzle passage with a nozzle axis, said nozzle passage passing through said resin nozzle and communicating with a resin hose, said resin nozzle being mounted to said nozzle block such that said nozzle axis and the work axis are parallel and lie in a plane normal to said pivot axes, thereby assuring that the plane in which said nozzle axis moves contains the work axis;
- and
- means for displacing said nozzle block with respect to said positioner base to move said resin nozzle between a retracted position, where said nozzle axis is displaced from the work axis, and an extended position, where said nozzle axis is aligned with the work axis and said nozzle passage is in close proximity to the rock surface.
A resin nozzle positioner for a rock bolter having a frame which supports a centralizer, having a centralizer axis, and a turret which supports a drill feed track, on which a rock drill is advanced when aligned with the centralizer axis toward a rock surface to bore a bolt hole into the rock surface, and a driver feed track, on which a bolt driver is advanced when aligned with the centralizer axis to drive a bolt into the bolt hole, the turret pivoting about the centralizer axis to align either the rock drill or the bolt driver therewith, the resin nozzle positioner comprising:
- a positioner base affixed with respect to the frame;
- a pair of arms, each of said pair of arms terminating in an arm base end region and an arm free end region, said arm base end region of each of said pair of arms being pivotably attached to said positioner base so as to pivot about a base pivot axis, said base pivot axes being normal to the centralizer axis and spaced apart from each other at a separation S;
- a nozzle block pivotably attached to said arm free end region of each of said pair of arms such that said arm free end region pivots about a block pivot axis, said block pivot axes being normal to the work axis and spaced apart at said separation S, said base pivot axis and said block pivot axis for each of said pair of arms being spaced apart at a separation L which defines the effective length of said pair of arms;
- a resin nozzle having a nozzle passage with a nozzle axis, said nozzle passage passing through said resin nozzle and communicating with a resin hose, said resin nozzle being mounted to said nozzle block such that said nozzle axis and the centralizer axis are parallel and lie in a plane normal to said pivot axes, thereby assuring that the plane in which said nozzle axis moves contains the centralizer axis;
- and
- means for displacing said nozzle block with respect to said positioner base to move said resin nozzle between a retracted position, where said nozzle axis is displaced from the centralizer axis to avoid interference with rotation of the turret by said resin nozzle or said nozzle block, and an extended position, where said nozzle axis is aligned with the centralizer axis and said nozzle passage is in close proximity to the centralizer.
Dependencies are inferred from the claim text.