Smashed straw quantitative ditch-buried and returning-to-field device

Abstract

The invention belongs to the technical field of agricultural machinery and particularly relates to a smashed straw quantitative ditch-buried and returning-to-field device. A two-sided ditching plow of the device opens a straw burying ditch, a roller blind driving mechanism drives a roller blind (12) to be opened and fixes the positions of a spiral nut (10) and a connecting plate (11), the opened roller blind (12) blocks smashed straw (22) sent by a smashing mechanism in the front, the smashed straw (22) falls into a spiral conveying mechanism (7), a left spiral blade (702) and a right spiral blade (703) on a rotating shaft (701) convey the smashed straw from the two ends to the middle, and through a central hole of a spiral conveying casing (8), the smashed straw (22) blocked by the roller blind (12) is guided into the straw burying ditch through a straw guiding casing (14). The smashed straw returns to fields partially by burial and partially by earth surface covering, the quantitative adjustment of the proportion of the smashed straw returning to field by ditch burial is achieved, and the adaptability is good under the conditions of a large straw amount.

Description

technical field [0001] The invention belongs to the technical field of agricultural machinery, and in particular relates to a crushed straw variable ditch burying returning device used in conjunction with a horizontal straw crushing and returning machine. Background technique [0002] In modern agricultural production, the crushed crop stalks are often evenly covered on the ground surface, which can change the physical and chemical properties of the soil, fertilize the soil, etc. However, with the increase of crop yield, the amount of straw increases, and the method of crushing and covering the ground in full amount brings great difficulties to the subsequent plowing and sowing operations. Therefore, it is imperative to actively explore and find new ways of straw returning. Among them, straw crushing and ditch burying have gradually become a research hotspot. Patent CN200910223897.3 discloses a crushed straw deep application machine, which uses a hydraulic device to drive t...

AI Technical Summary

Problems solved by technology

Patent CN200910223897.3 discloses a crushed straw deep application machine, which uses a hydraulic device to drive the straw conveying device and deep application device, applies the crushed straw in the material box to the soil plow layer, and can realize the adjustment of the amount of straw buried, However, the separation of straw crushing and deep construction is not conducive to continuous operation, and the structure is relatively complicated

Patent CN201010568451.7 discloses a buried straw returning machine. A guide plate and furrow plow are installed at the rear of the straw grinder to guide the crushed straw into the furrow for burial. And when the amount of straw is large, it is impossible to adjust the buried amount of crushed straw, and it is difficult to guarantee the buried quality

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