| 摘要 |
<p>A method and an arrangement for controlling the operation of a rock drilling unit driven by a diesel-hydraulic power source. In the invention, the hydraulic fluid flow supplied by a diesel engine (3) driven pressure controlled volume flow pump (5) to the hydraulic motor (8) of a compressor (9) is controlled in proportion to the speed of rotation of the diesel engine (3), so that when the speed of rotation drops owing to the load caused by the rock drill (1), the volume flow of the hydraulic fluid supplied by the volume flow pump (5) decreases in order to decrease the load.</p> |
