DE9112873U1 - Distributor device for mowers - Google Patents

Description

H. NIEMEYER SÖHNE GMBH & CO. KG 17 October 1991

Heinrich-Niemeyer-Str. 52 Big./Av

4446 Hörstel-Riesenbeck

Distributor device for mowers
15

The invention relates to a distribution device for mowers or grass conditioners according to the preamble of claim 1.

A conditioning device with a distribution device is known from DE-A-26 53 463. Behind the conditioning device, in the area of the exiting material flow, a roller is arranged which can be rotated about a horizontal axis 5 lying approximately transversely to the conveying direction of the conditioning device. The material flow can pass either above or below the continuous roller and is intended to be loosened in the process. The loosening effect is not sufficient with such an arrangement. The engagement of the loosening tools in the material flow is small when the roller is on top, and when the roller is on the bottom, the entire material flow rests on the roller, which also cannot bring about effective loosening. Furthermore, the distribution device cannot be adapted to the composition and size of the material flow or the working speed. The material flow remains relatively compact, since there is also no uniform lateral widening.

The object of the invention is to provide a distribution device behind a mower or a grass conditioner which enables a particularly loose swath formation using simple means.
5

The invention solves the problem in that the distribution device is provided with two rotating disks for distributing the cuttings, a partial area of which is located in a crop flow in the flow direction of the cuttings, the rotation planes of which are inclined in the shape of a V with the tip facing the direction of travel.

With regard to further advantageous embodiments of the invention, reference is made to claims 2 to 13.

Thanks to the advantageous arrangement of the rotating distribution discs, the cuttings emerging from the crop conditioner are captured and partially deflected to the side. The rotating discs create an additional swirling effect, so that a wide, loose swath is created. The drying effect is promoted and the required further processing effort, for example by tedders, is reduced. If the cuttings are to be ensiled, any further processing can even be dispensed with.

When working, the left disc rotates clockwise and the right disc anti-clockwise when viewed in the direction of travel. The advantageous V-shape and the design of the discs in the outer area mean that the distributor device has a good grip, takes in the crop well and has a widening effect when forming the swath.

The work of the distribution discs is independent of the working speed, since they are primarily driven by the emerging grass clippings. Essentially only the lower part of the distribution discs comes into contact with the grass clippings, so that after the invention of the disc

diameter can be preselected according to the cross-section of the resulting mown material.

According to the invention, the angle of attack for the V-shape is adjustable, and the angle that the rotation axes of the discs form with the ground can also be continuously adjusted. Other adjustments include the height of the discs relative to the crop and the distance between them.

The discs are preferably designed to be concave in the direction of travel of the mower in order to make it easier for the grass to be redirected. In one embodiment, the outer edge of the discs is advantageously equipped with protruding drivers, which preferably stand on grips and thus penetrate the grass particularly easily. In another embodiment, the outer edge of the discs can be designed to be tooth-shaped or can be designed in a different way to facilitate penetration into the grass and grip.

Due to the advantageous design of the edge of the discs according to the invention, a vortex effect is created during swath formation, which contributes significantly to the looser deposition of the mown material in the swath.

The distribution device can be used advantageously behind all mowers that form at least one swath. When used behind mowers with several swaths, a separate distribution device must be provided for each swath.

With a minimum of effort, the invention creates a distribution device that meets the requirement for a loose swath for the cuttings emerging from a crop conditioner or a mower.

Further features and advantages of the invention will become apparent from the following description and the drawings in which

two embodiments of a distribution device according to the invention are shown schematically, approximately to scale.

Show it:

Fig. 1 - Top view of a mower with grass conditioner and the distributor device in working position
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Fig. 2 - The side view of the mower with grass conditioner and distributor device in working position as shown in Fig. 1.

Fig. 3 - The side view of a distributor disc.

Fig. 4 - The front view of a distributor disc according to
Fig.3

Fig. 5 - A side view of another embodiment of a distributor disc.

Fig. 6 - A front view of a distributor disc according to
Fig.5.

As an embodiment of the invention, a distributor device (7) is shown in Fig. 1 and Fig. 2, which is arranged behind a crop conditioner (4) of a mower (3). The mower (3) is designed as a rotary mower with two mowing discs (5, 6) driven about vertical axes. The mower (3) is articulated, for example, via a three-point linkage (2) to a tractor (1), which moves in the direction of travel (F) when working.

5 The grass cut by the mower (3) is gathered into a swath by the mowing discs (5,6) and fed to the grass conditioner (4), which processes the grass and throws it out to the rear. There it is distributed by the distributor

direction (7) and loosely deposited to form a swath which is particularly enlarged in width.

The distribution device (7) preferably consists of disks (8,9) that can be rotated about axes (12) and that engage the flowing grass during operation. Only the lower half of the disks (8,9) is actuated, so that each disk (8,9) is set in rotation, namely the left disk (8) viewed in the direction of travel (F) clockwise and the right disk (9) viewed in the direction of travel anti-clockwise. Such actuation of the distribution device (7) is particularly advantageous, since in the case of "overhead actuation" the relatively high weight of the grass would have an unfavourable effect on distribution.

In order to make particularly good use of the inherent dynamics of the crop to drive the distribution device (7), according to the invention the guide plates (23, 24) of the crop conditioner (4) are preferably interrupted symmetrically to the working width of the crop conditioner (4) and the distribution device (7) is largely arranged in this gap. This keeps the energy loss of the crop to a minimum and promotes the distribution effect. The distribution device (7) is therefore arranged directly downstream of the crop conditioner (4) or the mower (3).

The adjustment options on the distributor device (7) are particularly important for high work quality. They allow adaptation to any type of crop in terms of composition and quantity, as well as to the working speed.

According to the embodiment (Fig. 1, 2), the distributor device (7) is arranged so that its length can be adjusted via elongated holes (25) behind the crop conditioner (4). This allows the horizontal distance of the distributor device (7) to the discharge point of the crop conditioner (4) to be adjusted.

For the distribution device (7) to work properly, it is advantageous if the axes of rotation (12) of the discs (8, 9) rise upwards against the direction of travel (F). Depending on the crop, the angle (ß) is 35° to 75°, preferably 55°. This angle is set by turning a clamp holder (26) on a torsion-proof guide shaft (27) after loosening the clamping screws. According to the example, each clamp holder (26) is assigned two clamping screws so that it is adequately supported on the guide shaft (27).

The representation of the spatially arranged opening angle (α) in Fig. 1 is simplified and folded parallel to the ground level. The angle adjustment option of the V, i.e. the actual opening angle (α) is 50° to 150°, preferably 120°, depending on the crop and working speed. The angle is adjusted using the preferably round disc handles (21), which are guided in the cross-shaped clamp holder (26) and, according to the example, are secured against rotation by clamping screws.

The height adjustment of the discs (8,9) is carried out in a simple and advantageous manner via the round disc stem (21), 5 which allows axial displacement after loosening the clamping screws in the clamp holder (26).

The distance between the discs (8,9) is also easily adjusted using clamping screws using the clamp holder (26) on the guide shaft (27).

A particularly effective loosening and distribution of the swath is achieved if the discs (10; 18, 19) are concave to the direction of travel (F) of the mower (3). This prevents abrupt deflection and improves the flow of the crop during the distribution process.

In Fig. 3, 4 and Fig. 5, 6 two embodiments are shown for the design of the disks (8, 9; 16, 17). Fig. 3 shows the side view of the complete disks (8, 9) with the concave disk (10), which can be freely rotated around the axis of rotation (12). The disk stem (21) arranged vertically to the axis of rotation (12) is preferably round. Fig. 4 shows the front view of this complete disk (8, 9). According to this embodiment, the disk (10) is tooth-shaped on its outer diameter. The teeth are radially symmetrical. However, according to the invention, other tooth shapes can also be used advantageously. With this shape, the grip of the disk (8, 9) can be influenced and adapted to requirements.

The discs (8, 9) are preferably used in pairs in the distributor device (7), whereby in the exemplary embodiment the complete disc (8) is arranged to the left of the center of the crop conditioner (4) as seen in the direction of travel and the complete disc (9) is arranged to the right of the center of the crop conditioner (4) as seen in the direction of travel.

As a further advantageous embodiment, a complete disk (16) is shown in Fig. 5, 6, in which, in contrast to the complete disk (8, 9) in Fig. 3, 4, drivers (20) are attached to the disk (18). The drivers (20) are preferably mounted on a handle in the direction of travel (F), whereby the distribution effect can be intensified depending on the angle position. The complete disk (17), not shown, differs from the complete disk (16) in that the drivers (20) are mounted on

the disc (18) are arranged in a mirror image. If these discs (16,17) are used in the distributor device (7), the disc (16) is arranged on the left in the direction of travel to the plane of symmetry of the crop conditioner (4) with a clockwise direction of rotation and the disc (17) on the right with a counterclockwise direction of rotation. The drivers (20)

According to the invention, they preferably have a round cross-section.

If the distribution width and the swirling effect are to be further increased, particularly with a large cross-section of the crop, the invention provides for the disks to be driven with variable peripheral speeds. The drive can be branched off from the mower or crop conditioner drive or can be provided by a separate drive system.

The advantages of the invention are not limited to the embodiments shown. They can be advantageous wherever swaths need to be loosened and laid down in an airy manner.

Claims (13)

H. NIEMEYER SÖHNE GMBH & CO. KG October 17, 1991 Heinrich-Niemeyer-Str. 52 Big./Av Hörstel-Riesenbeck CLAIMS 15 1. Distribution device for mowers or crop conditioners which discharge the crop in a combined crop flow backwards, the distribution device having a distributor body arranged at the rear of the mower (3) or the crop conditioner (4) and rotatable about an axis, characterized in that the distribution device (7) has two rotatable disks (8, 9) for distributing the crop, with a partial area located in a crop flow in the flow direction of the crop, the rotation planes of which are inclined in the shape of a V with the tip facing the direction of travel (F). 2. Distribution device according to claim 1, characterized in that the axes of rotation (12) of the discs (8,9) rise upwards counter to the direction of travel (F). 3. Distributor device according to claim 1 or 2, characterized in that the V of the inclination has an opening angle (α) of 60° to 150°, preferably 120°. 4. Distribution device according to one of claims 1 to 3, characterized in that the axis of rotation (12) encloses an angle of incidence (ß) of approximately 35° to 75°, preferably 55°, with the ground plane. 5. Distribution device according to one of claims 1 to 4, characterized in that the discs (8,9) are adjustable in height. 6. Distributor device according to one of claims 1 to 5, characterized in that the discs (8, 9) are adjustable in their mutual distance. 7. Distribution device according to one of claims 1 to 6, characterized in that the angle of attack (ß) of the axis of rotation (12) to the ground plane is adjustable. 8. Distributor device according to one of claims 1 to 7, characterized in that the opening angle (a) of the V of the inclination of the discs (8,9) is adjustable. 9. Distributor device according to one of claims 1 to 8, characterized in that the discs (10,18) are slightly curved. 10.Distribution device according to claim 9, characterized in that the discs (10,18) are concave to the direction of travel (F) of the mowing machine (3). 11.Distribution device according to one of claims 1 to 10, characterized in that the discs (10) are tooth-shaped at their outer diameter. 12. Distributor device according to one of claims 1 to 11, 5 characterized in that drivers (20) projecting over the outer edge of the disc (18) are attached. 13.Distribution device according to claim 12, characterized in that the drivers (20) have the cross-sectional shape of round material.