Corn-harvesting and stalk-chopping test bench

Abstract

The invention relates to the technical field of agricultural machinery, in particular to a corn-harvesting and stalk-chopping test bench, which comprises an ear picking device, a feeding device, a horizontal chopping blade device, a frame, a hydraulic pump, a first variable-frequency and variable-speed motor, a hydraulic oil tank, a torque sensor, a second variable-frequency and variable-speed motor, a testing operation monitor station, a universal joint and a transmission shaft. The ear picking device is hung to the frame through pins, the torque sensor is installed on an output shaft of the second variable-frequency and variable-speed motor which transmits power to the ear picking device through the universal joint and the transmission shaft, and the horizontal chopping blade device below the ear picking device is hung to the frame through U-shaped bolts. The testing operation monitor station is capable of displaying torque and rotation speed of the output shafts of the variable-frequency and variable-speed motors and adjusting the rotation speed, and is safe and convenient in operation and reliable in data. The horizontal chopping blade device is capable of moving in the direction of any coordinate axis in a rectangular coordinate system so as to spatially position moving blades and meet the impact need of the spatial position of the moving blades upon the effect of chopping corn plants.

Description

technical field [0001] The invention relates to a corn harvesting stem cutting test stand, which belongs to the field of agricultural machinery test stands. Background technique [0002] Returning corn stalks to the field can effectively increase the organic matter content of the soil, improve the soil structure, and fertilize the soil. It has a positive effect on improving the soil, especially to alleviate the contradiction of the imbalance of nitrogen, phosphorus and potassium in my country, to make up for the shortage of phosphorus and potassium fertilizers, and to promote sustainable agriculture. Development is of great significance, however, the poor effect of returning to the field will directly affect the quality of sowing, resulting in low emergence rate, resulting in reduced grain production, and improving the effect of returning to the field is an urgent problem that needs to be solved. [0003] At present, the corn stalk returning devices in my country are roughly ...

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Problems solved by technology

[0002] Returning corn stalks to the field can effectively increase the organic matter content of the soil, improve the soil structure, and fertilize the soil. It has a positive effect on improving the soil, especially to alleviate the contradiction of the imbalance of nitrogen, phosphorus and potassium in my country, to make up for the shortage of phosphorus and potassium fertilizers, and to promote sustainable agriculture. Development is of great significance. However, the poor effect of returning to the field will directly affect the quality of sowing, resulting in low emergence rate and reduced grain production. Improving the effect of returning to the field is an urgent problem that needs to be solved

[0003] At present, the corn stalk returning devices in my country are roughly divided into two types: horizontal and vertical according to the blade type. Factors affecting the quality of returning to the field are characterized by diversification. An important factor of returning field quality, but the discussion on this factor is still at the level of subjective inference, and there is no scientific and objective experimental analysis and research, resulting in the chopping effect of most domestic horizontal blade returning machines that have not yet reached the national standard , to a large extent hindered the development of corn straw returning machinery in China

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