Combined subsoiler

Abstract

The invention discloses a combined subsoiler which comprises a main machine frame. A traction frame and a plurality of harrow needles are installed on the main machine frame in a detachable mode through fastening parts. A plurality of shovel handle fixing seats are arranged on the main machine frame, a two-layer sub-soiling shovel is arranged on each shovel handle fixing seat through a fastening part, each two-layer sub-soiling shovel comprises a shovel handle, a breaking shovel and a sub-soiling shovel are arranged on the shovel handle, and the breaking shovel is arranged above the sub-soiling shovel. The combined subsoiler is simple in structure, capable of achieving light weight, convenient to combine, easy and convenient to operate, little in operation resistance, low in manufacture cost and easy to popularize.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery, in particular to a combined subsoiler. Background technique [0002] Subsoiling operation is one of the key technologies of conservation tillage. It has the functions of loosening the soil, deepening the plowing layer, improving soil water permeability, air permeability and soil aggregate structure. It is also conducive to the infiltration of rainwater, improving the ability of soil water storage and moisture conservation, and improving soil Fertility and other effects are a major measure in the field of farmland cultivation. The simple soil preparation harrow is suitable for operations such as breaking the soil compaction layer on the ground, crushing the soil after plowing, leveling moisture and soil preparation before sowing, and can also replace the plow for shallow plowing operations on soft soil. Therefore, this design adopts a double-layer deep loosening shovel structure, c...

AI Technical Summary

Problems solved by technology

Because the plowing width is larger than the outer edge of the rear wheel of the tractor, there is no tire indentation after plowing, so the ground surface is flat, there is no moisture ditch, the coverage is tight, the efficiency is high, and the fuel consumption is low. Both dry land and irrigated land can be used. The disadvantages are: 1. .Complicated structure, many parts, high cost, high maintenance cost, and short service life; 2. High requirements for traction machinery and large traction force, which are difficult to match with general small agricultural machinery; 3. High failure rate in the field and difficult maintenance; 4. .Combined operation of subsoiling knife and rotary tillage knife, heavy force and slow operation speed; 5. The rotary tillage knife is fixed, and the depth of rotary tillage cannot be adjusted, which affects the quality of rotary tillage operation

Its disadvantages are: 1. It has high requirements for traction machinery and large traction force, and it is difficult to match it with small-scale agricultural machinery; 2. The rotary tiller blade is fixed, and the depth of rotary tillage cannot be adjusted, which affects the quality of rotary tillage operations; There are large loose soil ditch, because the topsoil cannot be covered in time, which intensifies the evaporation of soil moisture

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