Multi-path hydraulic system of hydraulic excavator
A technology of hydraulic excavators and hydraulic systems, which is applied in the direction of earthmoving machines/shovels, construction, etc., can solve the problems of inability to control independently, increase in control instability factors, and inability to realize energy-saving control, and avoid energy consumption. Wasteful, flexible control effects
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[0028] The present invention is further described below in conjunction with accompanying drawing:
[0029] see Figure 1 to Figure 6 , a hydraulic excavator multi-channel hydraulic system, including a controller 4, an oil inlet pipe, an oil return pipe, a variable pump 1, a boom cylinder hydraulic system, an arm cylinder hydraulic system, a bucket cylinder hydraulic system, a swing motor hydraulic system and a walking Motor hydraulic system; the outlet of the variable pump 1 is connected to the oil inlet pipe through the pipeline, and the inlet of the variable pump 1 is connected to the oil return pipe through the pipeline; the hydraulic system of the boom cylinder, the hydraulic system of the arm cylinder, the hydraulic system of the bucket cylinder, and the hydraulic system of the swing motor The hydraulic system of the travel motor and the travel motor are both arranged between the oil inlet pipe and the oil return pipe;
[0030] The hydraulic system of the boom cylinder i...
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