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[CN 202010302355.1] High and low pressure switching hydraulic mechanical leg independently controlled by robot and load port


[CN 202010302355.1] A High and Low Pressure Switching Hydraulic Mechanical Leg with Independent Control of Robot and Load Port Title: A High and Low Pressure Switching Hydraulic Mechanical Leg with Independent Control of Robot and Load Port Application Number: CN 202010302355.1 Applicant: Zhejiang University Application Date: 2020-4-16 Patent Type: Invention Application The present invention relates to a High and Low Pressure Switching Hydraulic Mechanical Leg with Independent Control of Robot and Load Port, belonging to the technical field of robots. The mechanical leg includes two adjacent leg rods, a control actuator and a hydraulic cylinder for driving the two leg rods to swing relatively; the control actuator includes a high-pressure end valve, a first low-pressure end valve and a third-position three-way valve. The second low-pressure end valve; one of the double-pipe joints of the high-pressure end valve is connected with the inlet of the oil tank, and the other is connected with the high-pressure hydraulic source; one of the double-pipe joints of the first low-pressure end valve is in communication with the low-pressure hydraulic source, the other is in communication with the oil tank, and its single-pipe joint and the single-pipe joint of the high-pressure end valve are in communication with the rodless oil cavity interface through a three-way pipe structure; One of the double-pipe joints of the second low-pressure end valve is in communication with the low-pressure hydraulic source, and the other with the oil tank. The structure can effectively improve the energy efficiency of the robot system, and can be widely used in the technical field of multi-legged robots.