Device producing hammering

Abstract

A hammering device comprising a body ( 1 ) from which the device can be connected to a working machine, for instance, a stroke-transmitting piece ( 5 ) fixed in the body and taking the strokes of moving and hammering mass ( 2 ) and transmitting the strokes to pile ( 7 ) to be hammered into or pulled up from the ground, whereby between piece ( 5 ) and pile ( 7 ) a clamp ( 6 ) is applied, by means of which pile ( 7 ) surface is grasped. The device includes mass ( 2 ) moving cylinders ( 8 ), by means of which the back-motion of the mass can be carried out conducting the fluid pressure to have effect on piston ( 16 ) of said cylinders on primary side ( 20 ), and by means of which cylinders the hammering motion of mass can be carried out compressing the gas on the secondary side of cylinders 8 into wanted pressure by means of fluid pressure conducted to primary side ( 20 ), whereby hammering motion is carried out discharging the fluid pressure from primary side of the cylinders.

1 . A hammering device comprising a body ( 1 ) from which the device can be connected to a working machine, for instance, a stroke-transmitting piece ( 5 ) fixed in body ( 1 ) taking the strokes of moving and hammering mass ( 2 ) and transmitting the strokes to a pile ( 7 ) or similar to be hammered into or pulled up from the ground or to a tool connected to the device, whereby between piece ( 5 ) and pile ( 7 ) or the tool a clamp ( 6 ) is applied, by means of which pile ( 7 ) or tool is grasped and in which device strokes transmitting piece ( 5 ) and hammering mass ( 2 ) are ring-shaped and pile ( 7 ) to be hammered is arranged to travel through the ring-shaped parts, characterized in that the device includes ring-mass ( 2 ) moving cylinders ( 8 ), by means of which the back-motion of ring-mass can be carried out conducting the fluid pressure to have effect on piston ( 6 ) of said cylinders on primary side ( 20 ), and by means of which cylinders the hammering motion of mass ( 2 ) can be carried out compressing the gas on the secondary side of cylinders  8  into wanted pressure by means of fluid pressure conducted to primary side ( 20 ), whereby hammering motion is carried out discharging the fluid pressure from primary side ( 20 ) of the cylinders.  
   
   
       2 . A hammering device according to  claim 1  characterized in that cylinders ( 8 ) are from their other end fixed to mass ( 2 ).  
   
   
       3 . A hammering device according to  claim 1  characterized in that mass ( 2 ) hammering energy can be regulated by means of the length (s) of mass ( 2 ) back-motion.  
   
   
       4 . A hammering device according to  claim 1  characterized in that mass ( 2 ) hammering energy can be regulated adjusting the pressure (p) of cylinder ( 8 ) secondary side.  
   
   
       5 . A hammering device according to  claim 1  characterized in that to mass ( 2 ) additional mass ( 17 ) is arranged moving in regard to mass ( 2 ), the hammering impact of which on piece ( 5 ) takes place with delay in regard the stroke of mass ( 2 ) due to distance (d).  
   
   
       6 . A hammering device according to claim characterized in that the device can be turned 180°, both for hammering in and pulling out piles from the ground.  
   
   
       7 . A hammering device according to  claim 1  characterized in that the device has a control unit ( 17 , by means of which the hammering energy of mass ( 2 ) can be regulated by remote control.  
   
   
       8 . A hammering device according to  claim 1  characterized in that the device has a pipe ( 9 ) steering mass ( 2 ) and running through the centre hole of mass ( 2 ).  
   
   
       9 . A hammering device according to  claim 1  characterized in that in piece ( 5 ) pre-pressure in hammering direction can be arranged by means of the working machine or similar.