A spiral precision fertilizer feeding device

Abstract

The invention discloses a spiral precision fertilizer feeding device, which comprises a feeding box, a feeding box and a power driving device, one side of the feeding box is connected with the power driving device, and a transporting The fertilizer spiral casing is connected with the casing of the fertilizer transport section on the discharge box. The input box, the fertilizer spiral casing, the fertilizer section casing and the discharge box together form a complete fertilizer feeding shell. The screw conveying assembly for fertilizer feeding is installed, and the power drive device drives the interaction between the fertilizer feeding screw and the input box, coaxial sleeve and output box, so as to achieve the purpose of fertilizer discharge and control the rotation speed of the power drive device The speed of fertilization can be adjusted and the amount of fertilization can be changed.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a screw precision fertilizer feeding device. Background technique [0002] The use of chemical fertilizers is an important guarantee for farmers to increase production and income. Precision fertilization technology is a scientific fertilization mode proven by practice, which is of great significance to improve the utilization rate of fertilizers and reduce agricultural film source pollution. Improving the precision of fertilizer feeding, reducing the energy consumption of fertilizer feeding, and optimizing the linearity of fertilizer discharge control are of great significance to the development of precision agriculture and meet the needs of sustainable development of modern agriculture. [0003] The screw is an ideal short-distance precision conveying device, which has the characteristics of closed conveying environment, stable conveying volume, and forced conveyi...

AI Technical Summary

Problems solved by technology

However, due to the limitation of its structural characteristics, there are two main reasons why the general screw cannot be used for fertilization: one is that the conveying volume of the screw conveying has the characteristics of low-frequency pulsation, which will cause the amount of fertilizer to be unstable. Obvious broken strips appear; the second is that fertilizer feeding is a forced closed process, and fertilizer particles are easily stuck between the closed spiral and the spiral sleeve, resulting in the stagnation of the fertilizer discharger and the crushing of the fertilizer

In addition, most of the existing fertilizer dischargers adopt a serial power transmission method, which cannot realize the start-up and shutdown of a single fertilizer discharger and the independent adjustment of the fertilizer discharge volume, which is not conducive to the calibration of the fertilizer discharger and variable fertilization in the width direction.

[0004] The fertilizer inlet of the existing equipment (fertilizer discharger) is directly above the spiral, and the space between the spiral and the inner wall of the casing is gradually closed, which will cause the particles to be stuck, ranging from being stuck, resulting in unsmooth fertilizer discharge, to severe Directly burn out the motor, and use the fertilizer directly below (the fertilizer outlet is directly below the spiral), affected by the rotation phase angle of the spiral blade, the size of the space formed by the blade and the outlet is pulsating, and the fertilizer flow will appear low-frequency pulsation. Difficult to achieve uniform strip application

Therefore, the existing equipment (fertilizer) has poor fertilization accuracy, low uniformity, and large fertilizer discharge resistance. It cannot realize different fertilization amounts between rows of crops, and the linearity of the adjustment amount and the control amount is low. Realize stepless adjustment of fertilizer discharge and other issues

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