Rock Drilling Device and Rock Drilling Rig Incorporating A Pressure Cylinder For Feeding The Drilling Machine

Abstract

The present invention relates to a rock drilling device comprising a feed beam ( 4 ), which has a drill end ( 41 ) from which the drill point protrudes at drilling and a rear end ( 42 ) opposite said drill end. A rock drilling machine ( 5 ) is movable along the feed beam ( 4 ) and a pressure cylinder ( 6 ) is arranged at least partly inside the feed beam ( 4 ) with one end ( 622 ) movable relative to the feed beam ( 4 ) and one end ( 611 ) fixedly arranged relative to the feed beam. A feed line ( 51 ) is driven by the pressure cylinder ( 6 ) and connected to the drilling machine ( 5 ) for feeding it to and for along the feed beam ( 4 ). At least a part of the pressure cylinder ( 6 ) is arranged inside the feed beam ( 4 ) and the fixed end ( 611 ) of the pressure cylinder ( 6 ) is arranged at the rear end ( 42 ) of the feed beam, the pressure cylinder ( 6 ) being adapted to feed, via said feed line ( 51 ), the drilling machine ( 5 ) to and for along the feed beam. The invention also relates to a drill rig comprising said rock drilling device.

1 . Rock drilling device comprising a feed beam ( 4 ), which has a drill end ( 41 ) from which the drill point protrudes at drilling and a rear end ( 42 ) opposite said drill end; a rock drilling machine ( 5 ) movable along the feed beam ( 4 ); a pressure cylinder ( 6 ), which at least partly is arranged inside the feed beam ( 4 ) with one end ( 622 ) movable relative to the feed beam ( 4 ) and one end ( 611 ) fixedly arranged relative to the feed beam ( 4 ); a feed line ( 51 ), which is driven by the pressure cylinder ( 6 ) and connected to the drilling machine ( 5 ) for feeding it to and fro along the feed beam ( 4 ), characterised in that the fixed end ( 611 ) of the pressure cylinder ( 6 ) is arranged at the rear end ( 42 ) of the feed beam ( 4 ) and that the feed line ( 51 ) is routed over two outer sheaves ( 52 ,  53 ) that are fixedly arranged at each end ( 42 ,  41 ) of the feed beam, the pressure cylinder ( 6 ) being adapted to feed, via said feed line ( 51 ), the drilling machine ( 5 ) to and fro along the feed beam ( 4 ). 
   
   
       2 . Rock drilling device according to  claim 1 , characterised in that two inner sheaves ( 54 ,  55 ) are arranged on the movable end ( 622 ) of the pressure cylinder ( 6 ) inside the feed beam ( 4 ), the feed line ( 51 ) being arranged such that it passes from the outer sheaves ( 52 ,  53 ) over the inner sheaves ( 54 ,  55 ) to its two endpoints where it is fixedly arranged ( 512 ,  511 ). 
   
   
       3 . Rock drilling device according to  claim 1 , characterised in that the pressure cylinder ( 6 ) comprises two cylinders ( 61 ,  62 ), one outer cylinder ( 61 ) and one inner cylinder ( 62 ) that runs inside the outer cylinder ( 61 ), wherein the outer cylinder is fixedly arranged at the rear ( 42 ) end of the feed beam ( 4 ). 
   
   
       4 . Rock drilling device according to  claim 1 , characterised in that the feed beam is a box beam. 
   
   
       5 . Rock drilling device according to  claim 1 , characterised in that a measuring device that measures the location of the drilling machine ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 ). 
   
   
       6 . Rock drilling device according to  claim 5 , characterised in that the measuring device is arranged to the shaft ( 9 ) of a outer sheave ( 52 ,  53 ) and that the sheave ( 52 ,  53 ) and shaft ( 9 ) are integrated such that they rotate together. 
   
   
       7 . Rock drilling device according to  claim 6 , characterised in that the measuring device is arranged on the shaft extension. 
   
   
       8 . Drill rig comprising a rock drilling device according to  claim 1 . 
   
   
       9 . Rock drilling device according to  claim 2 , characterised in that the pressure cylinder ( 6 ) comprises two cylinders ( 61 ,  62 ), one outer cylinder ( 61 ) and one inner cylinder ( 62 ) that runs inside the outer cylinder ( 61 ), wherein the outer cylinder is fixedly arranged at the rear ( 42 ) end of the feed beam ( 4 ). 
   
   
       10 . Rock drilling device according to  claim 2 , characterised in that the feed beam is a box beam. 
   
   
       11 . Rock drilling device according to  claim 3 , characterised in that the feed beam is a box beam. 
   
   
       12 . Rock drilling device according to  claim 2 , characterised in that a measuring device that measures the location of the drilling machine, ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 )., 
   
   
       13 . Rock drilling device according to  claim 3 , characterised in that a measuring device that measures the location of the drilling machine ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 ). 
   
   
       14 . Rock drilling device according to  claim 4 , characterised in that a measuring device that measures the location of the drilling machine ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 ). 
   
   
       15 . Rock drilling device according to  claim 10 , characterised in that a measuring device that measures the location of the drilling machine ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 ). 
   
   
       16 . Rock drilling device according to  claim 11 , characterised in that a measuring device that measures the location of the drilling machine ( 5 ) relative to the feed beam is arranged at one or both of the outer sheaves ( 52 ,  53 ). 
   
   
       17 . Drill rig comprising a rock drilling device according to  claim 2 . 
   
   
       18 . Drill rig comprising a rock drilling device according to  claim 3 . 
   
   
       19 . Drill rig comprising a rock drilling device according to  claim 4 . 
   
   
       20 . Drill rig comprising a rock drilling device according to  claim 5 .