Automatic control system for opening depth for disk-type opener

Abstract

The invention relates to an automatic control system for the opening depth for disk-type opener. The system is characterized by comprising a machine frame, a detection unit, a control unit, a hydraulic system, an executing mechanism and the disk-type opener, wherein the machine frame comprises a cross beam, a four-bar mechanism and a small machine frame; the opener is fixed on the small machine frame; the detection unit comprises a connecting rod, a detection land wheel and a linear variable displacement transducer; the detection land wheel is hinged on the small machine frame through the connecting rod; the upper end of the transducer is arranged on the small machine frame while the lower end is connected with the axle of the detection land wheel; the input end of the control unit is connected with the detection unit while the output end is connected with the hydraulic system; the executing mechanism comprises an L-shaped rod, a working frame and an adjusting land wheel; one end of the L-shaped rod is hinged with the hydraulic system while the other end is connected with the working frame; the L-shaped rod is hinged on the small machine frame at the corner; the front end of the working frame is hinged with the small machine frame; a chute is reserved at the middle position of the working frame and is connected with the L-shaped rod; and the adjusting land wheel is fixed at the rear end of the working frame. The system can adjust the opening depth of the disk-type opener in real time, thus avoiding over-deep or over-shallow opening operation, adjusting sowing depth in real time and improving the consistency of the sowing depth.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to an automatic control system for the ditching depth of a disc type ditch opener. Background technique [0002] Conservation tillage implements no-tillage and less-tillage on farmland, covers the surface with crop straw, reduces wind and water erosion, and improves soil fertility and drought resistance. It has been widely promoted in northern my country. The no-tillage fertilization and seeding technology is the most critical technology of conservation tillage. In view of this, Chinese scientific researchers have innovatively designed and developed a series of light-duty high-blocking-free seeding machines suitable for my country's national conditions. [0003] At present, the types of openers used on non-seeding machines mainly include sharp-angle openers, disc-type openers, rotary tiller openers and power-driven disc openers. Among them, the rotary tiller opens Th...

AI Technical Summary

Problems solved by technology

The surface of conservation tillage has complex soil structure and field conditions, and the soil quality is variable. When sowing with a disc opener, it will sink deeper in soft soil and increase the sowing depth; while in hard soil, the resistance of soil penetration is large. , the soil is not enough, the sowing is too shallow, and the sowing quality cannot be guaranteed

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