DE3312665A1 - Field, reaping or picking chopper - Google Patents

Abstract

A field, reaping or picking chopper is provided with a crushing device consisting of rollers, in such a way that the triangular tooth-like grooves mesh in one another with a smaller play than corresponds to the grain thickness. The rollers are driven by means of outer synchronously running spur wheels.

Description

Field, Mali or picking chopper

The invention relates to a field chopper, mower or picking chopper with a downstream essentially consisting of nip rollers existing squeezing device and the like. And a further conveying device.

There is as yet no theory as to the formation of the nip rolls of such nip devices. Man has their sizes and their surface design as well as their drive speed according to the empirical values of the Mill construction determines where more of a grinding into flour, i.e. grinding of the grains, is sought. Based on experience we know that the grains are crushed by higher pressure forces with a smaller diameter and thus Reduction of the crushing area and the same peripheral speed of the rollers achieved. Such trained or driven shot or squeeze rollers, however, also take shredded material containing plant parts bad at. In order to avoid possible blockages of the flow to the further conveying devices with choppers avoid, one has interposed storage funding organs.

A known chopping and shredding device of this type - DE-OS 30 00 946 - e.g. sees one at the bottom of the cutting mechanism Tronimelhäckslers an ejection, from which the chopped material is conveyed by four trough conveyors leading upwards on an inclined plane into the gap of two pinch rollers.

The shredded shredder mix passing through by the squeeze rollers then enters a l'roq screw conveyor in free fall, 'which it feeds to a sausage blower. The elevators form the storage. Which inevitably Harvesting machine consisting of many individual units is very complex and accordingly heavy and expensive, so all in all a broad and versatile Application is unlikely to be possible. Also the device is through the many in a row arranged units so expansive that their general use as a tractor attachment is hardly an option.

Accordingly, the object of the invention is to provide a chopper with nip rollers which easily accepts the chopped material, so that it can be made in a lighter, more compact and less bulky construction and in which, in addition, there is no grinding of the material .

The object of the invention is achieved in that the rollers are provided with corrugated profiles, depending on Comb the setting with a smaller clearance than the respective grain thickness and insert the outside through a intermeshing spur gears are driven synchronously.

BATH ORIGINAL

This places the grains between the corrugated profiles completely squashed and not crushed with the other parts of the plant harvested with the forage harvester. Most animals store the food better when it is chewed in the rough form obtained in this form can be ensiled without major losses. The squat, compact design of the Device that is therefore convenient and easy to use and easy to maneuver.

Further refinements can be seen in subclaims 2 and 3.

The invention is shown in the drawing using an exemplary embodiment explained and described in more detail.

Show it:

1 shows a forage harvester with the squeezing device according to the invention;

FIG. 2 shows the formation of a detail in the device according to FIG. 1

In the drawing, 1 is the knife drum of a drum forage harvester and with 2 denotes its feeding device. The latter to be connected upstream is not shown Mower or picking mechanism for the maize plants or maize cobs. 3 is a cutter wheel of the drum chopper, which is equipped with a Wave 4 revolves. 5 is a floor pan. 6 is an ejection opening provided below of the drum chopper 1. In a Trough 7 of the bottom plate 5 is a lower pinch roller 8, which rotates with its shaft 9 in bearings 9a, and is embedded about it, offset slightly to the rear, an upper squeegee roller 11 rotating with its shaft 10 in bearings 10a Squeeze rollers rotate in opposite directions in the direction of arrows a - b and run parallel to the knife wheel shaft 4. An the trough 7 closes at the bottom an inlet funnel 12a a blower 13 connected downstream of the drum chopper 1, whose blade carrier 14 rotates with blades 15 provided on the circumference with a central shaft 16. 17 is an ejection of the blower 13 located at the top.

In Fig. 2 the position of the drum chopper is approximately the same width 1 extending nip rollers 8 and 11 can be seen. With 18 and 19, the drive is the same by two equally large Called spur gears. As can be seen in Fig. 1, the nip rollers 8 and 11 are tooth-like with on the circumference Tooth-like corrugations 20 and 21 meshing with one another are provided with a game. The game cannot do this over a further

device 28 shown are set and is selected according to the invention so that the grains more or
less crushed. Grinding of the grains is ruled out by the synchronous running of the nip rollers 8 and 11 and by the above-described interaction between them.

COPY

Claims (3)

Claims 1.) Field chopper, mower or picking chopper with a downstream consisting essentially of nip rollers and the like. And one Further conveying device, characterized in that the rollers (8 and 11) have corrugated profiles which, depending on the setting, mesh with one another with a smaller clearance than the respective grain thickness and are driven synchronously on the outside, e.g. by intermeshing spur gears (18 and 19). 2. Field, mowing or picking chopper according to claim 1, characterized in that the corrugations (20 and 21) have a triangular tooth cross-sectional shape. 3. Field, mower or picking chopper according to claim 2, characterized in that the flank length of the Corrugation (20 and 21) approximately to 'the root diameter the nip rollers (8 and 11) behave like 1: 6 to 1: 8.