| 摘要 |
FIELD: agriculture. ^ SUBSTANCE: tool comprises hingedly frame-mounted spring-loaded beams with working elements, every of which has a safety device. Safety device is arranged in the form of hydraulic cylinders installed on frame, stems of which are connected to beams. Working cavities of hydraulic cylinders are communicated with hydraulic accumulator. Safety device is equipped with hydraulic pulsator connected to hydraulic cylinders by means of valve, heat exchanger and check valve. Hydraulic cylinders are communicated by means of check and safety valves. ^ EFFECT: structural design will make it possible to increase reliability of design and to reduce traction resistance of tool, and also to increase quality of soil tillage. ^ 1 dwg |
