Frame-type postposed reversing ditcher

Abstract

The invention discloses a frame-type postposed reversing ditcher. The ditcher comprises a speed-change gearbox fixed on left and right shells, a side transmission case and a supporting arm, wherein lower parts of the side transmission case and the supporting arm are supported against two ends of a cutter shaft; the cutter shaft positioned outside a ditching cutter is arranged on the cutter shaft in a sleeving manner by virtue of a sleeve through a bearing and a dust-proof ring. During operation of the frame-type postposed reversing ditcher, the cutter shaft and the ditching cutter rotate, and the sleeve of which soil is arranged on the surface is attached to the ground, automatically rolls, and does not rotate along with the cutter shaft; the sleeve does not rotate, and cannot be wound by stalks; an intermediate gear is arranged before the transmission gear, so that a universal cutter shaft forward rotation structure is changed into a cutter shaft reverse rotation structure. According to the frame-type postposed reversing ditcher, the problem caused by stalk wound on the cutter shaft can be completely solved due to the sleeve arranged on the cutter shaft, the operation efficiency and ditching quality can be greatly improved, and the ditcher is well received by users.

Description

Technical field [0001] The invention relates to an agricultural machine, in particular to a frame type rear reverse ditching machine matched with a hand drag. Background technique [0002] Ditching machine is a kind of commonly used agricultural machinery. The configuration of the ditching machine matched with the hand drag has front type and rear type. The front type ditching machine is reverse rotary cutting. Belt transmission, wear and tear on the belt, the front of the machine is heavy and the rear is light, it is troublesome to load and unload, it is very laborious to turn around and cross the field ridge in the field, and the labor intensity of the operator is high. The frame type rear trenching machine currently has two structures: forward rotation and reverse rotation. The forward-rotating rear-mounted ditcher has a simple structure and low price, but the quality of ditching is poor. The frame-type rear-mounted reverse-mounted ditcher is easy to load and unload, easy...

AI Technical Summary

Problems solved by technology

[0002] Ditching machine is a kind of commonly used agricultural machinery. The configuration of the ditching machine matched with the hand drag has front type and rear type. The front type ditching machine is reverse rotary cutting. Belt transmission, wear and tear on the belt, the front of the machine is heavy and the rear is light, it is troublesome to load and unload, it is very laborious to turn around and cross the field ridge in the field, and the labor intensity of the operator is high. The frame type rear trenching machine currently has two structures: forward rotation and reverse rotation. The forward-rotating rear-mounted ditcher has a simple structure and low price, but the quality of ditching is poor. The frame-type rear-mounted reverse-mounted ditcher is easy to load and unload, easy to operate, throws soil evenly, and has no broken soil at the bottom of the ditch. At present, the frame-type rear-mounted reverse ditcher When the ditching machine is used to ditch the field where the straw is returned to the field, due to the large amount of straw in the field, the straw is easily entangled on the cutter shaft, and the cutter shafts located on both sides of the ditching knife about 100 meters away will be entangled by a large amount of straw , affect the normal operation, the operator must often use a knife to cut and clean the straw wrapped around the knife shaft. Under the situation of vigorously advocating the return of straw to the field, the frame type rear ditching machine has a serious defect that the knife shaft is wrapped around the straw and affects the operation.

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