A grooving
machine with three saw rods capable of advancing in clay comprises a supporting shaft and a hoisting lug. The supporting shaft is arranged on the upper portion of the grooving
machine, the hoisting lug is disposed on the lower portion of the grooving
machine, a sandstone pump is fixed at the lower end of a
slurry outlet
steel tube, a suction opening is arranged at the bottom end of the sandstone pump, and the upper end of the
slurry outlet
steel tube is connected with a
slurry outlet rubber tube; upper ends of a
rocker arm A, a
rocker arm B, a
rocker arm C and a rocker arm D are connected to the slurry outlet
steel tube, the lower end of the rocker arm A is connected to a connector A, the lower end of the rocker arm B is connected to a base, the lower end of the rocker arm C is connected to a base B, the lower end of the rocker arm D is connected to a connector C, the connector A, a connector B and the connector C are respectively used for being connected with upper portions, middles and lower portions of a cutter arbor A and a cutter arbor C, and the base A and the base B are respectively disposed at the upper end and the lower end of a cutter arbor B; the left lower end of a connecting rod A is connected to the right upper end of the cutter arbor C via a pin, the right upper end of the connecting rod A is hinged to a
crankshaft, the left lower end of a connecting rod B is connected to the right upper end of the cutter arbor B via a pin, the right upper end of the connecting rod B is hinged to the
crankshaft, and the left upper end of the
crankshaft is connected to a driving power speed
reducer; and a plurality of cutter plates are disposed at the bottom of each of the cutter arbor A, the cutter arbor B and the cutter arbor C. The grooving machine is a special
machine tool for building underground continuous walls.