Rock drilling machine, removable cartridge, stop ring and drilling rig

Abstract

The invention relates to a rock drilling machine comprising a front part ( 1 a ), a removable cartridge ( 5 ) arranged in the front part ( 1 a ), a shank adapter ( 3 ) and a stop ring ( 4 ) for the shank adapter ( 3 ). According to the invention, the diameter of the removable cartridge ( 5 ) is at least as great as the diameter of the stop ring ( 4 ), such that it is possible during demounting of the removable cartridge ( 5 ) to mount or demount the stop ring ( 4 ), without removing the front part ( 1 a ) from the rock drilling machine. The invention also relates to a removable cartridge ( 5 ), a stop ring ( 4 ) and a drilling rig incorporating the drilling machine.

1 . A rock drilling machine comprising a front part, a removable cartridge arranged in the front part, a shank adapter and a stop ring for the shank adapter, wherein the diameter of the removable cartridge is at least as great as the diameter of the stop ring, such that it is possible during demounting of the removable cartridge to mount or demount the stop ring, without removing the front part from the rock drilling machine. 
     
     
         2 . The rock drilling machine according to  claim 1 , wherein the front part further comprises a cavity for the stop ring, which cavity is arranged such that the stop ring can lie in an open condition during mounting and demounting, and in a locked condition during operation of the drilling machine. 
     
     
         3 . The rock drilling machine according to  claim 2 , wherein the front part comprises a stop edge, and wherein the stop ring in the locked condition comprises a forward contact area that makes contact with the stop edge. 
     
     
         4 . The rock drilling machine according to  claim 1 , wherein the stop ring is shaped as a polygon with at least two corners, preferably two to five corners. 
     
     
         5 . The rock drilling machine according to  claim 1 , wherein the front part has a recess for mounting and demounting of the stop ring, into which recess the stop ring fits. 
     
     
         6 . The rock drilling machine according to  claim 1 , wherein the rock drilling machine further includes a lock ring in order to retain the stop ring in its locked condition. 
     
     
         7 . The rock drilling machine according to  claim 1 , wherein the rock drilling machine constitutes a top hammer. 
     
     
         8 . A removable cartridge for mounting in a front part in a top hammer, which top hammer comprises a stop ring, wherein the diameter of the removable cartridge is at least as great as the diameter of the stop ring, such that it is possible during demounting of the removable cartridge to mount or demount the stop ring, without removing the front part from the top hammer. 
     
     
         9 . A stop ring for mounting in a top hammer, which top hammer comprises a front part and a removable cartridge arranged in the front part, wherein the diameter of the stop ring is at most as great as the diameter of the removable cartridge, such that it is possible during demounting of the removable cartridge to mount or demount the stop ring, without removing the front part from the top hammer. 
     
     
         10 . The stop ring according to  claim 9 , wherein the stop ring is shaped as a polygon with at least two corners, preferably three to five corners. 
     
     
         11 . A drilling rig comprising a drilling machine according to  claim 1 . 
     
     
         12 . The rock drilling machine according to  claim 2 , wherein the stop ring is shaped as a polygon with at least two corners, preferably two to five corners. 
     
     
         13 . The rock drilling machine according to  claim 3 , wherein the stop ring is shaped as a polygon with at least two corners, preferably two to five corners. 
     
     
         14 . The rock drilling machine according to  claim 2 , wherein the front part has a recess for mounting and demounting of the stop ring, into which recess the stop ring fits. 
     
     
         15 . The rock drilling machine according to  claim 3 , wherein the front part has a recess for mounting and demounting of the stop ring, into which recess the stop ring fits. 
     
     
         16 . The rock drilling machine according to  claim 4 , wherein the front part has a recess for mounting and demounting of the stop ring, into which recess the stop ring fits. 
     
     
         17 . The rock drilling machine according to  claim 2 , wherein the rock drilling machine further includes a lock ring in order to retain the stop ring in its locked condition. 
     
     
         18 . The rock drilling machine according to  claim 3 , wherein the rock drilling machine further includes a lock ring in order to retain the stop ring in its locked condition. 
     
     
         19 . The rock drilling machine according to  claim 4 , wherein the rock drilling machine further includes a lock ring in order to retain the stop ring in its locked condition. 
     
     
         20 . The rock drilling machine according to  claim 5 , wherein the rock drilling machine further includes a lock ring in order to retain the stop ring in its locked condition.