System for soil compactness measurement and automatic adjustment of finely prepared land

Abstract

The invention provides a system for soil compactness measurement and automatic adjustment of finely prepared land. The system includes a soil compactness measurement mechanism, a compression depth automatic adjustment mechanism and a controller; the soil compactness measurement mechanism includes vertical pulling pressure transducers, horizontal pulling pressure transducers and monitoring wheels;the compression depth automatic adjustment mechanism includes a transverse girder, an electric cylinder and a compression roller; the controller collects the acting force performed by the soil on themonitoring wheels in the horizontal and vertical directions and measured by the pressure transducers, and obtains the soil compactness after fine soil preparation online according to a created relationship model of force performed on the monitoring wheels, the compression depth and the soil compactness; the controller feeds back and adjusts the compression depth of the compression roller in real time according to the relationship between the compression depth and the soil compactness to make the soil compactness maintain within a set target value range, and the soil compactness can meet agricultural technological requirements of planting of different crops. The system can effectively prevent differentiation of the soil compactness due to unreasonable compression depth, improve the operation quality of fine soil preparation machines and the adaptability of the fine soil preparation machines to different soil environments.

Description

technical field [0001] The invention belongs to the technical field of automatic control of finishing machines, in particular to a soil compactness measurement and automatic adjustment system for finishing soils, which is mainly used for continuous measurement and real-time feedback adjustment of soil compactness after the finishing machine operation. Background technique [0002] The finishing machine is an important equipment for the mechanized production of fruits and vegetables. It is mainly composed of devices such as furrowing, rotary tillage and crushing, and suppression and leveling. After operation, the three-dimensional configuration of soil with deep loosening, middle loosening, and fine and flat topsoil can be obtained. Among them, soil compactness is an important index to evaluate the quality of finished land. Appropriate soil compactness is not only conducive to the root system absorbing water and nutrients from the soil, but also makes the seeds fully contact ...

AI Technical Summary

Problems solved by technology

In the actual operation process, the soil compactness after finishing operations is often unstable due to changes in soil texture, structural properties and water content. Fluctuations in soil compactness will affect soil air permeability, water permeability, fertilizer use efficiency and biological activity

Therefore, the present invention proposes a continuous measurement method of soil compactness in finishing operations, and adjusts the depth of suppression according to the real-time feedback of the measurement results, so as to meet the agronomic requirements of soil compactness for crop planting, thereby improving the working performance and adaptability of the finishing machine. It has important theoretical research significance and practical value, and there is no public research report so far

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