Hydraulic excavator movable arm potential energy recovery system
A technology of potential energy recovery and motorized arms, which is applied in the direction of earth movers/shovels, construction, etc., can solve the problems of potential energy waste, achieve energy saving, reduce energy consumption, and highlight the effect of substantive features
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[0018] In order to clearly illustrate the technical features of the solution, the solution will be described below through a specific implementation mode combined with the accompanying drawings.
[0019] It can be seen from the drawings that a hydraulic excavator boom potential energy recovery system includes a fuel tank 1 and a hydraulic pump 2, and also includes two main control cylinders 7 and an auxiliary cylinder 8 for driving the movement of the boom. Oil cylinders 8 are arranged in parallel with two main control oil cylinders 7 respectively. The cylinder rods of the two main control oil cylinders 7 and the auxiliary oil cylinder 8 move synchronously to jointly control the rise or fall of the boom. The main control oil cylinder 7 is a conventional The hydraulic cylinder, the auxiliary cylinder 8 has the function of energy recovery, and the auxiliary cylinder 8 is located between the two main control cylinders 7 . The hydraulic pump 2 communicates with the rod cavity and ...
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