CS386791A3 - Fodder cutting and crushing machine - Google Patents

Description

Cutter for crushing straw

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Matted masses

BACKGROUND OF THE INVENTION The present invention relates to a cutter for crushing a stalked glass with a knife drum having a horizontal axis which interacts with a fixedly disposed opposite blade and a steeply sloping throwing shaft, the knives moving around an opposing blade from the bottom up and throwing away the material directly up.

So far the former

This type of cutter is known as a side cutter or field cutter, which is known from German Patent Specification 24 46 916. The choice of opposing blade arrangement, or the corresponding direction of rotation of the cutter drum, has the advantage that losses due to friction of the crushed material on the wall are noticeably avoided. a knife drum housing, which results in energy savings compared to cutters in which the knife drum has the opposite direction of rotation. However, the distance of the throw is not sufficient to handle high-volume, that is, high and long transport vehicles.

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SUMMARY OF THE INVENTION It is an object of the present invention to provide a greater casting distance and a fan-like distribution of the cut material beam, i.e. to achieve a flow of material that is evenly distributed over the cross section of the casting shaft. _ about _

This object is achieved by a cutter according to the invention, the principle being that an additional accelerator is provided on the discharge shaft. Furthermore, it is proposed to provide an additional crushing device, in particular in the form of two parallel axis crushing rollers which crush the corn grains and which can optionally be inserted between the knife drum and the additional accelerator. It is particularly advantageous if the knife drum, the additional crusher and the additional accelerator are arranged at a minimum distance from one another.

Such small distances make replacement difficult. Therefore, according to a further preferred embodiment of the invention, it is provided that an additional crusher housing is provided, which, together with the crushing rollers arranged therein, is a replaceable shaft section which is arranged between the additional accelerator and between the knife drum. Furthermore, the replacement can be facilitated by providing the housing of the additional crusher and the shaft section with an always-wall part of the housing of the knife drum housing and of the additional accelerator housing, and that the replaceable parts are connectable to the remaining housing parts by screwable flanges.

The main advantages of the invention are that the cutter can be used for any long-fiber glass material and that large-volume transport vehicles can be filled easily with a high and long throw-away system. £ 2 £ £ 2 £ £ 2 £ £ 2 £ £ 2 £ £

The invention is explained in more detail below with the aid of the embodiment in conjunction with the drawing.

FIG. 1 is a schematic side elevational view of a field section. FIG. 2 is a similar view of the knife drum shown in FIG. 1 and the subsequent conveyor channel system with an additional accelerator. FIG. 3 shows a variant of the embodiment of FIG. 2 with grain crushing rolls. The cutter of FIG. 1 has a collector 1 and a transverse conveyor 2 which transports the harvested harvest material to the cutting aggregate 3. Behind the transverse conveying screw 2, the harvested material is drawn in and compacted by conveyor rollers, some of which are profiled. The upper, fixed rollers 4 tangentially contact the transport plane in which also the adjacent cutting edge 5 is provided, while the sprung rollers 6 are provided at the bottom.

Knife 7 of the knife drum 8, which is driven at a high speed in accordance with FIG. 1 in the right direction, throws away the cut material immediately after the cutting process to an additional accelerator having four blade-like, also rotating vane rollers. The material to be discarded by the drum 8 slides, preferably with a slightly curved collecting guide plate 11, in a thin compact stream to an additional accelerator C). This unloads the cut material evenly through the so-called tower 12 and only the indicated ejection tip 13 on the conveyor. It also produces a uniform flow of cut material throughout the cross section even when the ejection tip 13 is laterally tilted. 4

In Fig. 2, the knife drum S with its opposing blade 2 and the additional accelerator 9 are shown again on a larger scale. The feed material to be fed 14 is marked in compressed form. The detailed section makes it possible to recognize that the lower shaft section 15 of the discharge shaft is formed as a removable part of the housing between the knife drum and the additional accelerator 9. This shaft section 15 has a collecting guide plate 11 on one side and a flat, adjacent wall 16 on the opposite side, as well as two cylindrical wall portions 17a 18 and unmarked axial pivot portions. The removable shaft section 15 can be connected to the other casing via screwed bars 19. It can be seen from FIG. 3 that during the maize harvesting operation, a housing 20 of the additional crusher can be used instead of the shaft section 15. This has identically arranged bolted strips 19 and there are two mutually cooperating grain cylinders 21 arranged therein, the axes of which are parallel to the roller rollers. The drive of these grain crushers 21 is arranged such that it can be detached when the casing 20 is removed and remains off when the grass is crushed.

Claims (5)

AT PATENT CLAIMS harvested masses with knife?? What is claimed is: 1. A cutter for crushing a stalked drum having a horizontal axis that cooperates with a " fixedly opposed blade " and a steeply rising deburring shaft, the blades moving around an opposing blade from the bottom up and throwing the cut material straight out; characterized in that an additional accelerator (9), rotatably arranged in the same direction of rotation as the knife rod (8), is provided on the stripping shaft. Cutter according to claim 1, characterized in that it has an additional crusher (20, 21), in particular for crushing maize grains, optionally connectable between a knife cell (8) and an additional accelerator (9). The cutter according to claim 2, characterized in that the knife drum (8), the additional crusher (20, 21) and the additional accelerator (9) are arranged as close to each other as possible. in The cutter according to claim 3, characterized in that an additional crusher housing (20) is provided which, together with the crushing rollers (21) arranged therein, can be exchanged for a shaft section (15) which is arranged between the additional accelerator (9) ) and between the knob (8), Cutter according to claim 4, characterized in that the housing (20) of the additional crusher and the shaft (15) each form a wall part (17, 18) of the housing of the knife drum (8) and the housing of the additional accelerator (9) and that the replaceable parts are can be connected with the remaining parts of the spark-plug flange (19).