Mud pumps are often used in the field of oil drilling and are an important part of drilling equipment. They are mainly used to transport flushing fluids such as mud or water into the borehole during the drilling process. Commonly used mud pumps are piston-type or plunger-type. The power machine drives the crankshaft of the pump to rotate, and then the crankshaft drives the plunger or piston to reciprocate in the pump cylinder through the crosshead. Under the alternating action of suction and discharge, the flushing fluid is circulated.