Harvester header lifting and traveling steering parallel control energy-saving valve group
The invention relates to the technical field of agricultural machinery, in particular to a harvester header lifting and traveling steering parallel control energy-saving valve bank which comprises a steering control unit, a working unit, an oil inlet pipeline and an oil return pipeline, and the work...
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Format: | Patent |
Sprache: | chi ; eng |
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Zusammenfassung: | The invention relates to the technical field of agricultural machinery, in particular to a harvester header lifting and traveling steering parallel control energy-saving valve bank which comprises a steering control unit, a working unit, an oil inlet pipeline and an oil return pipeline, and the working unit comprises a header oil cylinder and a working control valve; the steering control unit comprises a left steering cylinder, a right steering cylinder and a steering control valve; a first overflow branch and a second overflow branch are connected between the oil inlet pipeline and the oil return pipeline, a main overflow valve is arranged on the first overflow branch, a steering overflow valve and a hydraulic control valve are arranged on the second overflow branch, and the set pressure of the steering overflow valve is smaller than that of the main overflow valve. According to the invention, the highest pressure of the system is taken during independent lifting operation of the header, and the low pressure |
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