DE1903730A1 - Mowing device with rotating cutting tools - Google Patents

Description

Mowing device with rotating cutting tools Mowing devices with t rotating cutting tools are known.

There are several cutting tools next to each other on a support frame arranged. The cutting tools are in a row at right angles to the direction of travel. The support frame is usually arranged on the three-point linkage of an agricultural tractor.

The support frame is optionally at a corresponding distance above the cutting tools. The units are driven from above or it lies below the cutting tools and in the latter case is very kept flat in order to achieve the shortest possible mowing stubble.

The cutting tools themselves usually consist of a flat arched one Plate and the movably arranged knives on it.

The circular paths of the blades of two neighboring cutting units intersect yourself to avoid leaving an uncut strip.

It is now advantageous to keep the knife as short as possible to their To reduce inertia forces and to avoid that the mowed material sliding over the plate is cut again at the back.

The shorter the knife, the larger the diameter of the Plate.

In the case of a circular plate, the knife of the bar is used M§haggregates get into the area of this plate.

To avoid a collision between the knife and the adjacent plate, the knives are to be guided under or over this plate.

If you run them under this plate, collisions will result if the mower knife is lifted once by colliding with an obstacle. One leads it over the neighboring plate, the result is a stubble that is too high. One has this Attempts to remedy the disadvantage by creating oval plates.

If the knife is bent here, it will not hit the counter plate.

These oval plates again have the disadvantage that they when Driving into obstacles is extremely stressful.

The invention now provides a remedy here.

She suggests round plates to be placed in the area that the knife des adjacent mowing unit are brushed over, pressed through.

The pressing through can take place downwards, so that the adjacent Knife strokes the plate. A slightly longer mowing stubble is in here To take purchase. Advantageously, however, the plate is pressed upwards, so that the neighboring knife can run unhindered under the plate.

The pressing is carried out in such a way that also a bent up Knife still has enough space.

The contour of the penetration can be the knife path of the benaphbarren According to the knife. However, it can also be such that it is as flat as possible Angle adjoins the outer circumference of the plate, you can also go as far as possible to the holder of the plate's own M-sers, so that this is in front of Damage from stones and the like. Is protected.

In this case, the pressed-up surface can also be turned against the direction of rotation be pressed upwards.

In order to avoid stones, earth and the like To get to the storage of the mower disc, deflectors can, advantageously be arranged in a spiral to keep such foreign bodies away.

The figures show an embodiment of the invention.

The embodiment shown relates to a mowing device, whose drive is below the cutting tools.

Fig. 1 shows the top view.

Fig.lL and III each have a section with different designs the pressing through.

The cutting units A, B and C, essentially consisting of the plates 1, the knives 2 and their holder 3 are rotatably mounted on the hollow beam 4, in which the drive means are arranged. The drive takes place via the Transmission 5 from the towing vehicle. The Anlenkinig on the towing vehicle takes place via the linkage (>.

The mowing units move in or counter clockwise direction rotate. The directions of rotation of the neighboring sewing units to one another result in the angular range of the area swept by the neighboring knife.

Dei Fig. II shows a press-through of the plate 1 upwards so that the contour 7 of the pressed-up surface 8 1 of the circular path 9 of the neighboring Messers follows. In order to avoid radial edges as far as possible, the contour 10 be chosen, which connects to the outer circumference of the plate at a shallow angle.

As already mentioned, the high pressure can be as close as possible be brought up to the holder 3 of the knife to protect it from damage to protect.

Fig. III shows a surface 11 rising against the direction of rotation, which favors the forwarding of the junk goods.

As also mentioned, ribs 12 and 13 can advantageously be placed under the plate be arranged in a spiral. These ribs prevent stones from entering Earth and cuttings under the plates and thus damage to the plate storage.

Claims (1)

Protection claims 1.) Mowing device with several, side by side at right angles to the direction of travel arranged rotating, plate-shaped cutting tools, the Knife of one cutting tool as it rotates into the area of the neighboring one Get cutting tool, characterized in that the adjacent cutting tool in the areas that are swept over by the knives of the other tool, are pressed through so that the knife of one touches the plate of the other tool is avoided. 2.) Sewing device according to claim 1, characterized in that the Contour of the pressing through on the plate dor the path of the outer edge of the coating follows at a certain distance. 3.) Mowing device according to claim 1, characterized in that the The contour of the high pressure on the plate is guided so that it is as flat as possible Angle adjoins the outer edge of the plate 4.) Mowing device according to claim 1 characterized in that the area swept over by the adjacent knife is pressed up so that it protects the holder of your own knife from damage. 5.) Mowing device according to claim 1, characterized in that the The area swept over by the neighboring knife is pressed upwards against the direction of rotation is. 6) Mowing device according to claim 1, characterized in that the Plates are provided with deflectors if the one swept over by the neighboring knife Area of the plate is pressed up.