| 摘要 |
The invention relates to a rock drilling apparatus comprising a carrier and at least one drill boom mounted in the carrier and provided with a drifter and a feeding beam. Valves for the control of the operations of the drifter and the feeding beam are arranged in the form of an integral control unit. The control unit is mounted in a cradle provided for the feeding beam and it communicates with the carrier by means of merely two pressure fluid hoses and a control cable. |
