Sliding-cutting type resistance-reducing deep loosening shovel
A subsoiling shovel and sliding cutting technology, applied in the field of subsoiling shovels, can solve problems such as large gaps and large soil clods, and achieve the effect of reducing working resistance, preventing soil erosion, and leveling the ground surface
Inactive Publication Date: 2012-07-11
JILIN UNIV
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Problems solved by technology
[0004] The purpose of the present invention is to provide a sliding-cut drag-reducing subsoiling shovel with a new structure to solve the problem of large soil clods and large gaps formed on the ground surface after operation, and can reduce the working resistance of subsoiling operations and save energy consumption.
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[0024] Taking the maximum tillage depth of 400mm as an example, the subsoiling shovel handle is made of Q275 steel not lower than the GB / T 700, and the width of the shovel handle is L 2 The values of σ and thickness σ are 75mm and 30mm respectively, and the connection holes or clamps are designed according to the installation requirements of the rack structure. Rack connection section H 1 The structural size range is 255mm. Shovel tip connecting section L, L 4 and bolt hole position L 1 The values are 130mm, 145mm and 40mm respectively.
[0025] The inner directrix BC is given by the polynomial equation The formed curve is obtained by rotating the center of rotation at the end point B on the inner directrix at an angle of 40° in the counterclockwise direction. The x and y coordinates (unit: mm) of the BC section are calculated as follows:
[0026] x
0
85.42017
126.3856
156.3209
176.73
189.1171
y
0
...
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The invention relates to a sliding-cutting type resistance-reducing deep loosening shovel in the field of agricultural ploughing and soil preparation machinery. The sliding-cutting type resistance-reducing deep loosening shovel comprises a shovel handle and a copy shovel point connected to the shovel handle through bolts, and is characterized in that: an included angle (alpha) between a shovel point mounted plane (RC) of a shovel point connecting section and the horizontal plane is 20-24 degrees; a sliding-cutting angle (beta) formed between a tangent line of an internal directrix (BC) of a hook-shaped working section at an upper end point (B) and the vertical plane is 30-40 degrees; and the internal directrix (BC) of the hook-shaped working section is a curve formed according to a polynomial equation. Compared with the conventional other types of deep loosening shovels in the market, the sliding-cutting type resistance-reducing deep loosening shovel has the advantages that: the farming resistance is reduced, and the working resistance is obviously reduced particularly when the deep loosening depth and the operating speed are increased, so that energy is saved; meanwhile, large soil blocks and large gaps formed on the earth's surface after deep loosening operation are reduced, so that the earth's surface is flat and the loss of soil and water is prevented.
Description
technical field [0001] The invention relates to a subsoiling shovel in the field of agricultural land preparation machinery. Background technique [0002] Traditional farming operations will form a hard plow bottom layer, which will affect the water storage and moisture conservation of the soil, and easily cause problems such as soil erosion and soil degradation. Subsoiling technology is one of the important agricultural conservation tillage technologies, which can solve the adverse consequences of traditional arable land operations and provide a technical guarantee for the sustainable development of agriculture. However, the energy consumption of the subsoiler is large, especially with the increase of the depth of the subsoiler and the forward speed of the machine, the traction resistance of the subsoiler increases significantly. Therefore, reducing the tillage resistance of the subsoiler is of great significance for saving energy consumption. [0003] The subsoiling shove...
Claims
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Inventor 张强于路路于海业孙裕晶肖英奎张蕾贾洪雷刘宪军张璐
Owner JILIN UNIV