DE1902441A1 - Machine for spreading, turning and swathing of grass, hay, straw or other clippings - Google Patents

Description

Herr Hermann Hufer, 591 Mittelhees b. Kreuztal, house no.3

Machine for spreading, turning and swathing of grass, hay, straw or other clippings

The invention relates to machines for spreading, turning and swathing grass, hay, straw or other Cuttings with a mobile housing »

Known machines of this type (also often called "hay machines") work with tine forks to mechanically move the clippings to move. However, not all stalks of the clippings are covered, especially not the short, broken ones Stalks, so that a lot of clippings, especially when heaped up in so-called swaths, remains lying on the meadow or on the ground. The known machines do not work optimally economically because they are purely mechanical.

It is the object of the invention to provide a machine of the aforementioned To create a species that deviates from the mechanical working principle and moves the cut material pneumatically.

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This object is achieved according to the invention primarily in that in the machine housing a device for Generating vortex suction and / or compressed air flows for lifting and providing for tossing the clippings.

The device for eyeing vortex air currents has invention ^ cemäß on a multi-vane rotor, which is in extends substantially across the width of the machine and about an axis transverse to the direction of travel of the machine, for example from the power take-off shaft of a tractor or the like. here is driven in rotation. Stands can be attached to the outer edges of the rotor blades, on which they are evenly spaced Distances from each other 'vortex, suction air or vortex' are suspended freely.

The rotor is expediently driven in a direction opposite to the direction of travel of the machine, and the vortex suction air blades can consist of tunnel-shaped bent sheet metal pieces, which are each attached to a bearing bush.

The tunnel-shaped sheet metal seams of the vortex suction air blades are, according to a further partial feature of the invention, arranged with their curvatures in the direction of their circumference.

If vortex compressed air blades are used, these can have parallelogram-shaped flat sheet metal pieces, each of which be attached to a rod seated on the bearing bush in such a way that their planes are parallel to each other and to the axis of the bearing bush and their short edges are angled to each other.

To produce swaths of clippings, you can use Let the rear outer edges of the machine guide plates be -.- ^. k '- \ r and stored in a lockable manner.

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The blades producing the eddy air currents become useful with a peripheral speed of about 25 m / sec. driven.

In order to adjust the distance between the vortex airflow blades and the cut material, the machine can be designed to be height-adjustable will.

The invention will now be explained in more detail with reference to the drawing which shows it for example, namely shows

Pig. 1 is a perspective view from behind of a machine according to the invention,

Pig. 2 a schematic section through the machine,

Figure 3 is a view similar to that of Pig. 1 with attached Guide plates for producing swaths of the clippings

Fig. 4 in perspective an embodiment of a one Vortex suction air flow generating wing of the machine,

Fig. 5 is a plan view of a wing for generating a vortex compressed air flow, while

FIG. 6 shows a section along the line VI-VI in FIG. 5.

The in FIGS. 1 to 3 shown machine has a mobile housing 1, in which a rotor 2 around an axis 3j is rotatably mounted transversely to the direction of travel of the machine. The rotor 2 has two rotor blades 4 on their outer edges Rods 5 (see Fig. 2) are attached, on which in equal-

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moderate distances from one another vortex suction air or vortex compressed air blades 6 or 6 ¹ (FIGS. 5 and 6) are mounted in a freely oscillating manner. The rotor 2 is driven, for example, by the power take-off shaft of a tractor via corresponding intermediate gears and rotates against the direction of travel of the machine (see arrows in FIG. 2).

A wing 6 for generating a vortex suction air flow is shown in FIG. It consists of a tunnel-shaped bent sheet metal piece 7, which is attached to a bearing bush 8 attached. e.g. welded on.

The FIGS. 5 and 6 show a wing 6 ', the parallelo- ^ Gram-shaped sheet metal pieces 9 and 10 which are attached to a rod 11 so that their planes are parallel to each other and to the axis of the bearing bush 8 to which the rod 11 is attached, and their short edges 12 each make an angle lock in.

For the production of swaths of the cut material can be the rear outer edges 13 of the machine guide plates 14 are mounted pivotably and lockably, as shown in FIG. 3. For this purpose, corresponding hangers 15 (see FIG. 1) are provided on the rear edges 13 of the machine.

The machine can be adjusted in height so that- ' play by means of a crank 16 that the wings 6 or 6 'move close to the clippings, but they do this do not need to touch. The wings 6 and 6 'are at a peripheral speed of about 25 m / sec. driven, which corresponds to a speed of about 90 km / h. The blades generate 6 vortex suction winds or vortex suction air currents, so that the clippings are lifted up and thrown backwards through the machine housing 1. In a similar way Way, the wings 6 * (Figs. 5 and 6) generate vortex-pressure air currents, which have roughly the same effect.

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Which shape of the wing 6 or 6 ^{1 is} used depends essentially on the type and nature of the cut material.

Special advantages of the machine according to the invention are that due to the pneumatic operation of the same, all stalks of the cut material, even very short ones, are lifted out by the vortex air currents between the stubble, so that the loss of cut material, which is relatively high in the known machines, is considerably reduced will. While in the known machines that work with tines, the clippings must be moved mechanically by touching the tines, the clippings are moved by the vortex air flow blades 6, 6 ^! the machine according to the invention is not touched. Thus, there is practically no wear on the wings 6, 6 ¹ .

The invention also relates to modifications of the embodiment outlined in the accompanying patent claim 1 and relates above all on all features of the invention, individually - or in combination - in the whole Description and drawing are disclosed.

Claims

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ORIGINAL INSPECTED

Claims (8)

Claims 1.Machine for spreading, turning and swathing grass, Hay, straw or other cuttings with a mobile housing, characterized in that in the machine housing (1) a device (2, 4 »* 6) for generating vortex suction and / or streams of compressed air for lifting and tossing of the cut material is provided. 2. Machine according to claim 1, characterized in that the device for generating eddy air currents has a multi-vane rotor (2) which extends essentially over the entire width of the machine and about an axis (3) transverse to the direction of travel of the machine for example, from the power take-off shaft of a tractor o. the like. rotatably driven, and that (4) rods (5) are attached to the outer edges of the rotor blades, on which in equal distances from each other vortex suction air or fluidized-pressure air wing (6 or 6 ¹ ) are freely oscillating. 3. Machine according to claim 2, characterized in that the rotor (2) is driven in rotation against the direction of travel of the machine and that the vortex suction air blades (6) are off There are tunnel-shaped bent sheet metal pieces (7) that are ever attached to a bearing bush (8) are attached. 009833/1000 4. Machine according to claim 3> characterized in that that the tunnel-shaped sheet metal pieces (7) of the vortex suction air blades (6) are arranged with their curvatures in the direction of their circumferential movement. 5. Machine according to claim 2, characterized in that the vortex compressed air blades (6 ¹ ) have parallelogram-shaped flat sheet metal pieces (9, 10) which are each fastened to a rod (11) seated on the bearing bush (8) that their planes are parallel to each other and to the axis of the bearing bush (8) and their short edges (12) are at an angle to each other. 6. Machine according to claim 1 to 5 »characterized in that for the production of swaths of the cut material to the rear outer edges (13) of the machine baffles (14) are pivotable and lockable. 7. Hay machine according to claim 1 to 5 »characterized in that the eddy air currents generating wings (6, 6 ¹ ) with a peripheral speed of about 25 m / sec. are driven. 8. Hay machine according to Ansprurh 1 to 7, characterized in that it is used to adjust the distance between the vortices ™ air flow blade (6, 6 ¹ ) is designed to be height-adjustable for the cut material. 009833/1000 Blank page