Subsoil flat knife weeding and soil preparation machine

Abstract

The invention discloses a subsoiling flat cutter weeding and soil preparation machine, which comprises a suspension frame, a machine frame, an earth wheel, a subsoiling shovel, a transmission mechanism and a weeding and soil preparation machine, wherein the transmission mechanism consists of a transmission shaft, a gearbox, an eccentric shaft, a connecting rod, a swinging arm, a weeding cutter leg and a machine frame, and the weeding and soil preparation mechanism comprises a weeding cutter leg, a weeding flat cutter and a separation grid sieve. The subsoiling and the flat cutter weeding and soil preparation are optimized and combined, the combined operation of subsoiling, weeding and soil preparation is realized through one-step operation, the damage to the soil structure is small through the flat cutter weeding, the soil layer disturbing is small, the operation moisture loss is little, the moisture preservation effect is good, the weeding is overall and thorough, and the weeding effect is good. The grass roots and residue stubbles and roots cut by the weeding flat cutter are separated from the soil and cover the earth surface through the separation grid sieve, the surface layer soil layer structure cannot be damaged, the soil moisture loss is little, the earth surface is smooth after the operation, the earth surface residue stubble coverage rate is high, the effects of weeding and earth surface straw residue stubble coverage maintaining are reached, and the effects of water storage and moisture preservation, sand storm prevention, moisture evaporation reduction and the like are realized.

Description

technical field [0001] The invention belongs to the supporting agricultural machinery for protective tillage agricultural technology, and in particular relates to an agricultural machinery which is suitable for carrying out protective tillage operations on stubble fields of crops such as wheat and small miscellaneous grains, and has the functions of subsoiling, weeding and soil preparation. Background technique [0002] At present, agricultural conservation tillage technology is the most advanced sustainable agricultural technology in the world today, and it is an agricultural cost-saving, efficiency-enhancing and environmental-friendly technology that is promoted and applied nationwide. Its main technical features: less tillage or no tillage on the surface, and the coverage rate of straw residues on the surface after the crops are sown is greater than 30%. In dryland wheat and small miscellaneous grain production areas, the production process of conservation tillage is as f...

AI Technical Summary

Problems solved by technology

Existing rotary tiller weeding, rotary tillage destroys the soil structure, straw residues, grass roots mixed with the soil, the weeding effect is poor, and the straw coverage on the surface is reduced, which does not meet the requirements of conservation tillage

The existing wing shovel type weeder, because the weeding wing shovel has a certain angle, the soil is turned over to form a furrow during operation, and the soil moisture is large. At the same time, the grass roots cannot be separated from the soil, and the soil is mixed with weeds and straw residues. Poor, the surface straw residue coverage is low

In short, when the existing rotary tillage and weeding and soil preparation machines operate, the depth of rotary tillage is large, and the amount of straw residue coverage on the surface is greatly reduced, which cannot guarantee the technical requirement that the coverage rate of straw residue on the surface after sowing is greater than 30%. The structural damage is serious, the soil is suspended, the soil moisture is serious, and the moisture conservation ability is poor, which reduces the production quality standard of conservation tillage and affects the benefits of conservation tillage technology.

The above problems have formed a bottleneck in the promotion of conservation tillage technology in dryland wheat and small miscellaneous grain production areas, seriously restricting the development of conservation tillage technology, and become a technical problem that needs to be solved urgently

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