Rock drilling arrangement and machine

A rock drilling arrangement comprising:

• an impact device including a frame, a plurality of pressure chambers in the frame, and a piston arranged in the impact device;
• a rear mounting arrangement arranged for attaching the impact device to a carriage, the rear mounting arrangement having a front side and a back side and including two fastening lugs having a through hole as a mounting hole and arranged perpendicular in relation to an axial direction of the piston;
• a front mounting arrangement arranged for attaching the impact device to a machine component;
• at least one fore pressure accumulator arranged on the front side of the rear mounting arrangement in the axial direction of the piston;
• and
• at least one rear pressure accumulator arranged on back side of the rear mounting arrangement, the at least one fore pressure accumulator and the at least one rear pressure accumulator being connected to one of the plurality of pressure chambers and arranged to absorb pressure fluctuations in the plurality of pressure chambers.