Elastically-adaptive straw harrow

Abstract

The invention discloses an elastically-adaptive straw harrow and relates to a plough harrow with specially-shaped or specially-fixed plough teeth. The elastically-adaptive straw harrow is formed by aharrow frame and a harrow tooth, the harrow frame is formed by an upper beam and a lower beam which are parallel, two ends of the upper beam and the lower beams are fixedly connected through connecting rods, and a tensioning device is arranged in the middle of the front part of the harrow frame; a row of harrow teeth is movably matched on the lower beam, the top end of each harrow tooth is hingedwith one end of a guide rod, the other end of the guide rod penetrates the upper beam to be movably matched with the upper beam, and the guide rods between the upper beam and the harrow teeth are sleeved with springs. A buffer structure formed by the guide rods and the springs is adopted, the harrow teeth can rise to skim over hard objects when touching the same, operation efficiency is improved and service life of the elastically-adaptive straw harrow is prolonged; tips of the harrow teeth are flat, and leveling the land is facilitated; the elastically-adaptive straw harrow is divided into three sections in structure, the harrow can be lengthened or shortened as required, the burden that farmers purchase agricultural tools is reduced, and space occupation is reduced.

Description

technical field [0001] The invention relates to a columbine rake with special shaped or specially fixed columbine teeth, in particular to an elastic self-adaptive straw rake. Background technique [0002] The harrow is an important agricultural tool, which can gather or disperse straw, grain, etc., and can also be used to cultivate the topsoil of the land. If they encounter hard objects during work, they will collide with hard objects, which not only reduces the working efficiency of the harrow but also causes great damage to the teeth of the harrow; and when farming, according to different situations and needs, people have to choose different sizes Therefore, it is necessary to be equipped with rakes of different sizes for backup, but it takes up a lot of space when not in use, and the cost is also a burden for farmers. Contents of the invention [0003] The object of the present invention is to provide an elastic self-adaptive straw rake in order to overcome the above p...

AI Technical Summary

Problems solved by technology

[0002] The harrow is an important agricultural tool, which can gather or disperse straw, grain, etc., and can also be used to cultivate the topsoil of the land. If they encounter hard objects during work, they will collide with hard objects, which not only reduces the working efficiency of the harrow but also causes great damage to the teeth of the harrow; and when farming, according to different situations and needs, people have to choose different sizes harrow, so it needs to be equipped with different sizes of harrows for backup, but it takes up a lot of space when not in use, and the cost is also a burden for farmers

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