Field weeder and weeding method

Abstract

The invention discloses a field weeder and a weeding method. The weeder comprises a power chassis, a lifting hydraulic cylinder, a parallelogram suspension bracket, a weeding frame, a transmission assembly and a weeding unit, wherein the power chassis is connected with the weeding frame through the parallelogram suspension bracket, is connected with the parallelogram suspension bracket through thelifting hydraulic cylinder, and is used for vertically adjusting the work depth of the weeder; the transmission assembly is used for transferring power of the power chassis to the weeding unit through chain transmission; 4-8 groups of weed collection pawls are distributed on the weed collection screw of the weeding unit, have the pawl angle being 50-70 degrees, and are used for drawing inter-rowweeds and feeding the weeds into a weed chopping channel; a screwed weed chopping cutter comprises 6-10 groups of cutter teeth which are of a screwed structure and are used for chopping weeds and delivering the weeds into a feed channel; a two-way variable pitch auger comprises two groups of variable pitch screwed augers which rotate in opposite directions, is used for pressurizing and deliveringthe chopped weeds to the outlet of the feed channel and discharging the chopped weeds, and is used for covering weeds among plants. The field weeder has complete weeding operation, high work efficiency and good weeding effect.

Description

technical field [0001] The invention belongs to the technical field of agricultural production, and relates to a paddy field seedling weeder and a weeding method. Background technique [0002] Weeds are an inevitable harmful element in the paddy field environment, competing with seedlings for growth space, fertilizer nutrients, light and other resources, seriously affecting the yield and quality of rice. According to reports, the rice yield loss rate caused by weeds is more than 15% every year. Chemical weeding is the most widely used weeding method at present, and it has the advantages of rapidity, high efficiency and economy. However, the extensive use of chemical agents has brought about many problems such as environmental pollution and pesticide residues. The development of non-chemical agent weeding technology has received more and more government support and research attention. [0003] At present, the non-chemical weeding method is still mainly manual weeding. Weeds...

AI Technical Summary

Problems solved by technology

The above-mentioned blade type or rake tooth type weeding devices all achieve the purpose of pulling out weeds through the rotation of blades or rake teeth, but the weeding operation of this type of device is not thorough.

Weeds usually have strong vitality and can regenerate after being pulled out and discarded in the paddy field environment, which leads to the unsatisfactory weeding effect of the above device

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