DE2529019A1 - ATTACHMENTS - Google Patents

Description

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Patent application Attachable forage harvesters

The invention relates to a straw chopper, in particular a chopper for combine harvesters, comprising rotating cutting tools which are arranged between at intervals Countercutters are moved, chopping up the supplied straw and distributing it on the field via guide plates.

The known machines of this type essentially consist of a hotfzontal rotating knife shaft and one Set of counter knives arranged at right angles to the direction of travel

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at the straw outlet of the combine harvester.

The straw outlet and the chopper width are narrower, like the cutting width of the combine «With the guide plates should the chopped straw thrown out lengthways towards the combine harvester at the rear onto the Cutting width of the combine harvester.

In the known machines, the width distribution is insufficient.

The object of the present invention is a straw chopper with a uniform width distribution of the chop the entire cutting width of the combine harvester, thus unhindered reworking of the tillage equipment is possible.

The object of the invention was achieved in that the straw cutting tool consists of one or more knife shafts rotating transversely to the direction of travel.

The knife shafts are advantageously arranged vertically or approximately vertically.

Due to the vertical arrangement of the knife files, they circle Cutting knife in a horizontal plane and fling the cut straw transversely to the direction of travel, whereby

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at the same time the width distribution takes place.

In an embodiment of the invention, there is one at the lower end of the knife shaft to improve the centrifugal effect Centrifugal disc arranged with throwing vanes.

In a further embodiment of the invention, two cutter shafts running in opposite directions of rotation are arranged, whereby the hackle is thrown in opposite directions.

In the case of cutter blocks running in opposite directions In the area between the knife shafts fixed counter knives are attached at a cutting angle.

To limit the distribution width, there is a half behind the common ejection opening of the Meanor waves Conical shaped boundary plate laterally unj £ adjustable in height appropriate.

With this delimitation plate, which is acted upon with chaff on its inside, the adjustability of the Throwing angle can be adjusted in its size and the throwing direction.

The boundary plate can be adjusted using a cable so that the direction of throw of the chaff can be adjusted to the wind

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adjusted accordingly from the driver's seat and thus the chaff is not driven into the uncut grain.

Another possibility for adjusting the throwing angle consists in an embodiment of the invention by a Inclination of the knife shafts.

When the knife shafts are in a vertical position, the throwing angle is flat and the spreading width is large.

By swiveling the lower end of the knife shafts in the direction of travel, the throwing angle becomes steeper and the spreading width becomes steeper smaller.

The technical details of the invention are in the following description with reference to drawings of a Embodiment discussed and are characterized in the subclaims.

As an exemplary embodiment, one out of two is opposite The direction of rotation of rotating cutter shafts built on a straw chopper is shown on a combine harvester.

With the selected exemplary embodiment, the idea of the invention is implemented on a purpose-built machine.

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According to the feature of the invention, straw choppers can also be used be built with one or more like two knife shafts

The Μβββeverellen could also be installed horizontally. With knives rotating transversely to the direction of travel, chaff can be ejected transversely to the combine harvester.

The drawings show in the

Fig. 1 t with the combine harvester in a side view an attached straw chopper with omitted side wall.

Fig. 2: the straw chopper in a larger representation in plan view.

Fig. 3: The straw chopper according to Fig. 2 in the direction of view - direction from arrow A in FIG. 1.

At the end of the straw channel of a combine harvester Io are

Knife shafts 12, 15 standing vertically in a frame 11 arranged in camps l4 and 15.

As with straw choppers, there are on the cutter shafts 12, 13 known, at intervals l6 cutting knife 17 attached by means of bearing bolts.

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The cutter shafts 12, 13 have an opposite direction of rotation 18 and 19

In the area between the Messenrellen 12, 15 are in one Cutting angle 2o fixed counter knife arranged, which are combed by the cutting knives 17.

Via a round belt 21 and belt pulley 22 arrangement shown in FIG. 2 with dashed and dashed lines the cutter shafts are rotated.

If straw is conveyed via the straw shaker 23, then it is fed to the rotating cutting knives 17 via a chute 2k , grasped by them, chopped into chaff during the combing on the counter knives, thrown backwards laterally and distributed in the width.

To improve the centrifugal effect, centrifugal disks 25 can be attached to the lower end of the cutter shafts 12, 13 Throwing blades 26 must be attached

It coats it through the counter-rotating measurer waves to a side conveyance in two directions.

This means that even with a large cutting width of the combine harvester a sufficient width distribution of the relatively suffering,

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poorly centrifugal chaff guaranteed.

For limiting the spreading width and setting the control direction is behind the common ejection opening 27 of the two Moeser shafts 12, 13 as a half cone shell shaped delimitation plate 28 attached via a universal joint.

The delimitation plate 28 is acted upon with chaff on its inside and can be used via the universal joint Adjustment of the throwing angle and the given spreading width more or less swung out to the rear and be determined.

The limiting hech 28 also pivoted to the side 31 via a remote control 3o and thus the direction of spread according to the wind conditions can be adjusted from the driver's seat.

Another possibility for setting the spreading width is expediently by pivoting the knife shafts 12, 13 by pivoting the whole chopper 32 by changing the throwing angle.

If the straw that has not been chopped is deposited on the field as a swath of straw, the chute Zh is swiveled backwards via a pivot point 3] at the top 3 ^ »

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At the same time, the chopper is covered and the straw is directed to the ground.

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Claims (8)

Claims 1. Attachment chopper in particular for combine harvesters, comprehensive revolving cutting tools, which are moved between spaced-apart counter blades, thereby characterized in that the straw cutting tool consists of one or more rotating transversely to the direction of travel Knife shafts (12, 13) 2. Attachment chopper according to claim 1, characterized in that one or more Meseerwellen (12, 13) is vertical
or are arranged approximately vertically. 3. Attachment chopper according to claims 1 and 2, characterized
marked that two with in opposite sense (l8, 19)
rotating cutter shafts (12, 13) are arranged. 4. Attachment chopper according to claim 5t, characterized in that in the area between the Meseerwellen C12, 13) in
Fixed counter knives (2o) are attached at a favorable cutting angle. 5. Attachment chopper according to claim 1, characterized in that centrifugal disks at the lower end of the cutter shafts (25) are arranged with throwing blades (26). 609883/0068 _ ₂ _ 6. Attachment chopper according to claim 3, characterized in that that behind the ejection opening (27) a side and height-pivotable delimitation plate (28) is attached. 7. A construction chopper according to claim 6, characterized in that the delimitation plate is via a remote control (3o) can be swiveled sideways. 8. Attachment chopper according to claim 1, characterized in that the entire chopper for changing (32) the throwing angle is pivotable. 9. Attachment chopper according to Claim I _1, characterized in that the chute (24) can be pivoted upwards and backwards (34) via a pivot point (32). 609883/0068