Arm support system for tunnel primary support construction equipment

The utility model discloses a cantilever crane system for tunnel primary support construction equipment, which comprises a cantilever crane, a cantilever crane revolving seat is fixedly arranged at the tail part of the cantilever crane, a leveling seat is connected with the stroke tail end of the cantilever crane, a mounting seat is arranged on the leveling seat, a rock drilling system is arranged on the side surface of the mounting seat, and a rock drilling system is arranged on the rock drilling system. A manipulator leveling seat is mounted at the end of the mounting seat, and an end effector manipulator is mounted on the manipulator leveling seat. According to the cantilever crane system for the tunnel primary support construction equipment, the structure is simple, the vertical frame system, the rock drilling system and the hanging basket are integrated on the same mechanical arm, operation is flexible, the vertical frame mechanical arm and the rock drilling system do not interfere with each other in wor