Excavation device for geomechanical model test system

The invention relates to an excavation device for a geomechanical model test system. The excavation device comprises a rubber roller, a roller shaft, a flat washer, a longitudinal sliding plate, a hexagon nut, a synchronous belt I, a hexagon socket cap screw I, a longitudinal bottom sliding plate, a compression spring, a gear, a transmission optical shaft, a round nut, an elastic check ring I, a longitudinal clamping sliding plate, a clamping transmission shaft, a worm gear, a sleeve, a worm I, an elastic check ring II, a clamping optical shaft, a hexagon flange nut, a short shaft, a worm II, a transverse driving transmission shaft, a synchronous belt wheel, a transverse driven transmission shaft, a synchronous belt II, a transverse sliding plate, a hexagon head screw I, a drilling tool clamping frame, a hexagon head screw II, a drilling tool clamping top plate, an axial transmission shaft, a synchronous belt III, a motor axial sliding plate, a hexagon head screw III, a motor, a C-shaped common flat key, a dr