Water pump multi-stage control system and operation machine

• Main Authors: ZUO DUO, CHEN XIANXIN, CHI JINGJIAN
• Format: Patent
• Language: Chinese; English
• Published: 02.12.2022
• Subjects: BLASTING; EARTH DRILLING; EARTH DRILLING, e.g. DEEP DRILLING; FIXED CONSTRUCTIONS; GALLERIES; HEATING; LARGE UNDERGROUND CHAMBERS; LIGHTING; MECHANICAL ENGINEERING; MINING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; SHAFTS; TUNNELS; WEAPONS

The utility model relates to the technical field of hydraulic systems, and provides a water pump multi-stage control system and an operation machine. The water pump multi-stage control system comprises an oil source, a control valve, a plurality of oil conveying branch pipes, a plurality of pressure regulating valves and a water pump. One end of each oil conveying branch pipe is connected with an oil source through a control valve, and the other end of each oil conveying branch pipe is connected with an oil inlet of the water pump. The control valve is used for controlling the communication state of the oil conveying branch pipes and the oil source. And a pressure regulating valve is arranged on each oil conveying branch pipe. The control valve controls the oil source to be communicated with a certain oil conveying branch pipe, and the pressure regulating valves installed on the oil conveying branch pipes can control the output pressure of the corresponding oil conveying branch pipes respectively. Furthermore