Electrohydraulic control device of bulldozer and bulldozer

The electrohydraulic control device of the bulldozer comprises an oil tank, a hydraulic pump, a first electrohydraulic proportional valve set, a second electrohydraulic proportional valve set, a third electrohydraulic proportional valve set, a first transmission device, a second transmission device,...

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Bibliographische Detailangaben
Hauptverfasser:	HU XIANDONG, NIU HONGJIE, LIAO CHONGQING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BLASTING DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR DREDGING FIXED CONSTRUCTIONS FLUID-PRESSURE ACTUATORS FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS FOUNDATIONS HEATING HYDRAULIC ENGINEERING HYDRAULICS OR PNEUMATICS IN GENERAL LIGHTING MECHANICAL ENGINEERING SOIL SHIFTING SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The electrohydraulic control device of the bulldozer comprises an oil tank, a hydraulic pump, a first electrohydraulic proportional valve set, a second electrohydraulic proportional valve set, a third electrohydraulic proportional valve set, a first transmission device, a second transmission device, a third transmission device and a controller, the first transmission device comprises a first steering clutch, and the second transmission device comprises a second steering clutch. The third transmission device comprises a linear driving clutch and a braking clutch, and the controller controls the first transmission device, the second transmission device and the third transmission device so that the bulldozer can linearly advance, linearly retreat, forward left steering, retreat left steering, forward right steering or retreat right steering. Therefore, the electro-hydraulic proportional valve is adopted to replace an original hydraulic control valve, the variety of control elements can be greatly reduced, hydrau