Crop weeding machine for dry farmland

Abstract

The invention relates to agricultural machinery, in particular to a crop weeding machine for dry farmland. The crop weeding machine comprises a traction frame which can be connectedly hung to a power machine. The crop weeding machine is characterized in that a supporting arm extending downwards is mounted on a cross beam of the traction frame, a rotatable cross shaft is mounted at the lower end of the supporting arm, the cross shaft and the power machine are in transmission through a transmission part, cutter plates are mounted at two ends of the cross shaft respectively, elongated blades are mounted on the cutter plates respectively, the upper portion of each blade radially extends along the cross shaft, the middle of each blade is bent inwards, and a soil cover covers the cross shaft and the cutter plates. The crop weeding machine has advantages that the rotatable cutter plates are capable of cutting and upturning surface layers among crop lines to remove grass among lines, and the soil cover above the cutter plates can protect seedlings from being pressed by flying soil while appropriate amount of surface soil can be thrown among crop seedlings to eliminate grass among the seedlings; in addition, cutting completeness, great soil crushing performance, high operation efficiency and thoroughness in weeding are realized, and the crop weeding machine can be combined with deep scarification and topdressing and is promising in popularization prospect.

Description

Technical field [0001] The invention relates to an agricultural machine, that is, a dry field crop weeding machine. Background technique [0002] Dry field crops such as corn and sorghum need to be cleared of weeds during the growth period, especially for a period of time after the emergence of the seedlings. If the weeds are not timely weeded, the growth of the seedlings will cause great damage. At present, there are three main methods of weeding: one is to use a hoe to weed the weeds, the other is to use animal power or a machine to weed the weeds, and the third is to use herbicides to weed. Dry field crops are planted with a certain spacing and row spacing. When weeding, it is necessary to remove the weeds between the rows and the weeds between the rows. Obviously, the first type can eradicate weeds between crop rows and crop seedlings, and weeding is more thorough. However, the labor intensity is high, the efficiency is low, the cost is high, and it is easy to violate the f...

AI Technical Summary

Problems solved by technology

However, the labor intensity is high, the efficiency is low, the cost is high, and it is easy to miss the farming time and reduce the output.

Although the second method can reduce the burden on manpower, it can only remove the weeds between the rows, but cannot remove the weeds between the seedlings, and people need to use hoes to carry out auxiliary operations.

The third type of herbicide used has certain damage to crops and has adverse effects on soil and the environment

In addition, there is a grass scraper improved on the basis of a rotary tiller on the market. Since the rotary tiller requires a higher speed, the thrown soil has a great impact and can only be used in woodlands, orchards, etc. It is not suitable for weeding in the narrow rows of upland crops such as corn, especially at the seedling stage.

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