Hydraulic torque converter for large-tonnage loader

The invention relates to a hydraulic torque converter for a large-tonnage loader. The 340 circulating circle torque converter solves the technical problem that an existing 340 circulating circle torque converter is matched with an engine of a large-tonnage loading machine in performance, and the performance of the engine cannot be fully exerted, and specifically comprises a cover wheel assembly, a guide wheel assembly, a turbine assembly and a pump wheel assembly. The turbine assembly comprises turbine blades, a turbine body and a turbine hub. The pump wheel assembly comprises pump wheel blades and a pump wheel outer ring. The guide wheel assembly comprises guide wheel body blades; the inlet angle of each turbine blade is 30-35 degrees; the outlet angle of each turbine blade is 135 to 140 degrees; the inlet angle of each pump impeller blade is 90-95 degrees; the outlet angle of the pump impeller blade is 95-100 degrees, and the inlet angle of the guide wheel body blade is 95-100 degrees; the outlet angle of e