Pneumatic straw deep-burying returning machine

Abstract

The invention belongs to the field of agricultural tillage and land preparation machinery, relates to a pneumatic straw deep-burying returning machine and aims to functionally realize gas-phase and solid-phase material conveying under blowing pressure and pneumatically convey crushed straws with stubble cleaned to furrows made by furrowers to realize straw deep-burying returning. The pneumatic straw deep-burying returning machine integrally and structurally comprises a frame, a transmission system, a stubble cutting device, a picking and crushing device, a conveying assembly, a furrowing device, an earthing device, a compacting device and depth rollers and the like. A pneumatic conveying device which is a key part is arranged in rear of the picking and crushing device and comprises a screw, a fan, a conveying pipeline, a discharging pipeline and the like. A furrowing device is designed and mounted under the screw and the discharging pipeline, and the compacting device, the earthing device formed by left and right earthing shovels and the like are sequentially mounted in rear of the discharging pipeline. The problem of excessive straw incineration in autumn is effectively solved, and straw deep-burying returning, soil porosity improving, soil water permeability improving, waterlogging preventing, drought resisting and soil organic matter increasing are realized.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, in particular to a pneumatic straw deep-bury returning machine. Background technique [0002] With the improvement of crop yield, the annual output of straw is also rising. Since the straw cannot be effectively disposed of, and the excess straw is burned, the problems of air pollution and environmental safety are becoming more and more prominent. At present, the straw returning technology is mainly the harvester crushing the straw returning to the field, the stubble machine returning to the field, and the straw returning to the field with shallow rotation, which causes the soil to leak air and moisture, and the quality of the straw crushed and returned to the field is poor, and the straw cannot be used reasonably; and Long-term continuous tillage causes the soil plow layer to become shallow, and the plow bottom layer to thicken and move up, which affects the increase in crop yield...

AI Technical Summary

Problems solved by technology

Due to the ineffective treatment of straw, the surplus of straw is burned, causing air pollution and environmental safety issues to become increasingly prominent

At present, the technology of straw returning to the field is mainly the harvester smashing the straw back to the field, the stubble machine returning to the field, the straw returning to the field with a shallow rotation, causing the soil to leak air and moisture, and the quality of the crushed straw returning to the field is poor, and the straw cannot be used reasonably; and Long-term continuous tillage causes the soil plow layer to become shallow, and the bottom of the plow layer to thicken and move up, which affects the increase in crop yields

In the flat cropping area, the conventional plow can be used to plow 25cm to achieve straw burial, but in the northeast ridge cropping area, it is required that the seedlings are tight and the plow layer structure is loose, and the conventional plow cannot meet the requirements.

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