Multifunctional manipulator for primary support operation of small-section shallow-buried excavation electric power tunnel

The invention belongs to the technical field of construction in tunnels, and particularly relates to a multifunctional manipulator for primary support operation of a small-section shallow-buried excavation electric power tunnel. According to the scheme, the multifunctional mechanical arm comprises the multifunctional mechanical arm mounting base, and the gripper device, the longitudinal hydraulic motor, the vertical hydraulic motor, the pitching leveling oil cylinder and the like which are mounted on the multifunctional mechanical arm mounting base, and the gripper device can be used for clamping a drilling mechanism, an arch frame lifting mechanism, a concrete spraying device and the like; the functions of primary support drilling, small guide pipe drilling, arch erecting and spraying mixing are integrated, the multiple functions of drilling, small guide pipe drilling, arch erecting and spraying mixing are achieved, and the gripper device can rapidly switch the drilling mechanism, the arch frame lifting mech