Hydraulic Three in One Drilling Rig Drilling-Loading-Bolting Integrated Unit is with multi-usage,integrating multiple functions including drill jumbo, rock bolting machine, mucking loader, crusher and into one unit, which avoids the problem of multiple devices crossing each other in the roadway and the problem of tunneling in hard rock roadway can be solved comprehensively. Drilling, bolting, loading, digging, crushing and other functional modules are with reasonable layout for non-interference during the working. It not only reduces the repeated input of power equipment, but also reduce the purchase and maintenance cost of the whole machine. The drilling arm adopts double-triangle self-parallel mechanism and 360 ° flexible displacement mechanism, which can realize multi-position and multi-angle drilling. Folding type scraper plate, double chain scraper structure and large scope of dipper realize the efficient and reliable loading capacity. &nb…