Ridge-top self-cleaning folding-type digging harvesting machine for multi-row sweet potatoes

Abstract

The invention relates to a ridge-top self-cleaning folding-type digging harvesting machine for multi-row sweet potatoes, and belongs to the technical field of agricultural machinery. The machine comprises a rectangular machine frame, and the machine frame is composed of a middle frame and foldable left and right end frames hinged with the middle frame; and the front side of the middle frame is supported on a pair of depth limiting wheels, digging ploughs are installed on the rear sides of the middle frame and the left and right end frames, the middle of the rear side of the machine frame is hinged with left and right rotating sleeves with internal threads in a supporting manner, left and right lifting threaded rods respectively matched with the left and right rotating sleeves are respectively installed in the left and right rotating sleeves, and the outer ends of the left and right lifting threaded rods are respectively hinged with the outer ends of the left and right end frames. The machine provided by the invention can simultaneously obtain the multi-ridge sweet potatoes, and has high production efficiency; when transfer or transportation of the machine are needed in a field, theend frames located on the left and right sides are hinged to the middle frame of the machine frame through pin shafts, so that the digging ploughs located on two sides can be folded through manipulation of the lifting threaded rods, a width of the machine tool is significantly reduced, and transfer and transportation are greatly facilitated.

Description

technical field [0001] The invention relates to the technical field of agricultural machinery. Background technique [0002] Sweet potato is a labor-intensive crop planted on high ridges (ridge height 25cm, ridge spacing 80-100 cm), vines, high yield, and deep growth. It is mostly distributed in plain dam areas and hilly thin land. , loam and light clay. Sweet potato vines grow lush, long, thick and tough (up to 5 meters long), and have root hairs on the vines, which make the vines grow close to the ground and can cover the entire ridge and the ground, and the vines between the ridges are intertwined , not easy to separate. Therefore, before harvesting sweet potatoes, it is usually necessary to use a special straw crushing and returning machine to chop the vines. However, due to the particularity of the sweet potato vines, it is difficult for the vine crushing equipment to clean the vines thoroughly. The left and right broken straws lead to the accumulation of broken vine...

AI Technical Summary

Problems solved by technology

Therefore, before harvesting sweet potatoes, it is usually necessary to use a special straw crushing and returning machine to chop the vines. However, due to the particularity of the sweet potato vines, it is difficult for the vine crushing equipment to clean the vines thoroughly. The left and right broken straws lead to the accumulation of broken vine straws on the two sides of the harvester or the front of the column of the digging and harvesting plow when the sweet potato machines are digging and harvesting, resulting in poor soil fluidity, which in turn causes seedling soil congestion and increases the load on the machine tool. It is forced to stop for cleaning, otherwise it will cause mechanical damage and seriously affect the operation efficiency and quality. At present, most of the sweet potato digging and harvesting equipment in China are small single-row harvesters. Working in sandy loam and mortar black soil areas, there is a shortage of clay working machines

Moreover, when these harvesters are operating, there are many problems such as serious entanglement of broken vines, clogged soil, and poor operation smoothness. With the acceleration of land circulation, the number of large domestic sweet potato growers is increasing, and the number of large tractors with about 100 horsepower is also increasing, and their demand for sweet potato harvesting equipment with higher production efficiency (more than two ridges) is also increasing. more and more urgent

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