Special harrow device for plowing and preparing farmlands

Abstract

The invention discloses a special harrow device for plowing and preparing farmlands. The special harrow device is hung at the tail of agricultural mechanical equipment, and comprises a harrow frame. A suspension crossbeam is arranged on the harrow frame, a mounting seat is mounted between the harrow frame and the suspension crossbeam, a suspension bracket used for being connected with the agricultural mechanical equipment is hinged on the connecting seat, harrow tooth mounting shafts are distributed in the harrow frame, harrow tooth sleeves are fixedly sleeved on outer portions of the harrow tooth mounting shafts, harrow teeth with different lengths are distributed on the harrow tooth sleeves, two ends of each harrow tooth mounting shaft penetrate through the harrow frame to extend outwardly, and mounting shaft locking devices are arranged among the harrow tooth mounting shafts and the harrow frame. The special harrow device has the advantages that the mounting shaft locking devices can be adjusted, so that the harrow tooth mounting shafts can drive the harrow teeth to rotate on the harrow frame, the harrow teeth with the different lengths can be selected to level the farmlands, the depth of leveled soil can be adjusted according to actually planted crops, and root-taking and growth of the crops and irrigation for the crops are facilitated.

Description

technical field [0001] The invention relates to an agricultural machinery equipment, in particular to a special harrow used for leveling agricultural soil. Background technique [0002] At present, the tools used for farmland soil leveling are mainly rake devices. The device mainly includes a square mounting frame. A rake beam with rake teeth is installed in the mounting frame. When in use, the device is directly hung on the frame of the agricultural vehicle Just the tail. The main disadvantage of the rake device used in the above-mentioned prior art is that the length of the rake teeth is fixed, and it can only level and break the soil at a certain depth, so that the surface of the cultivated land is relatively smooth, and there are still large soil clods at a certain depth below the surface. And gaps, when the farmland is irrigated, the soil below the surface becomes loose when it encounters water, and the surface sinks, so the surface is uneven, which seriously affects t...

AI Technical Summary

Problems solved by technology

The main disadvantage of the rake device used in the above-mentioned prior art is that the length of the rake teeth is fixed, and it can only level and break the soil at a certain depth, so that the surface of the cultivated land is relatively smooth, and there are still large soil clods at a certain depth below the surface. And gaps, when the farmland is irrigated, the soil below the surface becomes loose when it encounters water, which makes the surface subsidence, so the surface is uneven, which seriously affects the later maintenance of crops

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