COMBINED EROSION-PREVENTIVE TOOL

摘要

FIELD: agricultural engineering. SUBSTANCE: erosion-preventive tool has frame 1, arm 5 connected with frame 1 through pivot joint and subsoil plow 7 fixed on arm 5. Stem 11 of hydraulic cylinder 12 is connected with subsoil plow 7 through pivot joint 10. Hydraulic cylinder 12 is attached on frame 1 through pivot joint 13. Subsoil plow 7 is fixed on arm 5 through cylindrical vertical pivot joint 6 and axial pivot joint 10. Pivot joint 6 has catch for limiting angle of rotation of pin within sleeve. Subsoil plow 7 is formed as blade positioned in vertical plane. When stem 11 is moving in opposite direction, subsoil plow changes its position relative to arm 5 by turning within stem 6 through an angle allowed by catch. Position of front surface of subsoil plow 7 in the process of soil tillage facilitates development of moment relative to pivot joint 4, with this moment being of the same character as moment developed by stem 11. The total moment imparts rocking motion to arm 5. EFFECT: improved erosion-preventive treatment of soil by increased area of Z-shaped furrow and enhanced reliability in operation. 3 dwg