Liquid fertilizer variable rate fertilization system controlled by electro-hydraulic proportional velocity regulating valve

• Main Authors: SU WENHAI, LI QICHAO, OUYANG BINLIN, LAI QINGHUI, JI WENYI, ZHANG JICHENG
• Format: Patent
• Language: Chinese; English
• Published: 12.06.2013
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS; FERTILISING; FISHING; FORESTRY; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; HUMAN NECESSITIES; HUNTING; PLANTING; SOWING; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRAPPING

The utility model discloses a liquid fertilizer variable rate fertilization system controlled by an electro-hydraulic proportional velocity regulating valve and belongs to agricultural machinery. Two ends of a quick coupling are connected with a hydraulic pump oil outlet and an electromagnetic directional valve oil inlet respectively, two oil outlets of an electromagnetic directional valve are connected with an oil inlet of an electromagnetic proportional velocity regulating valve and an oil return port of a hydraulic oil tank respectively, an oil inlet and an oil outlet of a hydraulic motor are connected with an oil outlet of the electro-hydraulic proportional velocity regulating valve and an oil return port of the electromagnetic directional valve respectively, a liquid fertilizer pump is connected with the hydraulic motor through a coupler, and a liquid fertilizer inlet and a liquid fertilizer outlet of the liquid fertilizer pump are connected with a liquid fertilizer box and a liquid fertilizer output tub