| 摘要 |
A device in a hydraulic rock drilling machine (1) including a distribution valve (7,7′, 7″) arranged in connection with the rock drilling machine for controlling hydraulic flows to different parts of the rock drilling machine, wherein the distribution valve includes a valve body (8, 8′, 8″), which is arranged movable to and fro in axial directions inside a valve chamber (33) and wherein the valve chamber is limited in axial direction by two valve end walls (10,11; 10′,11; 10″,11″). One of the valve end walls is movable in an axial direction against an abutment (12,12″) in such a way that it defines an end position for the valve body, and a pressing device (13,13′,13″) is arranged for pressing said at least one of the valve end walls against said abutment. The invention also relates to a rock drilling machine. |
