DE6801666U - DISC MOWER WITH EXTERIOR DRUM - Google Patents

Description

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BROTHERS WELGER

WOLFENBQTTEL

P 1109 Hol / Bβ

Seheibenmähwerk with external clearing drum

The invention relates to a disc mower, its cutter disks which can be driven around vertical axes arranged at a lateral distance are mounted on the top of a flat gear box, and that on his Outside has a clearing drum rotating about a vertical axis.

On disc mowers of the type mentioned above conventional swath boards have been tried. They cleared between standing goods and Mähschv / ad too narrow a track free. The high travel speed at which the disc mowers are used Vf he the, and the relatively large tractors f. Which are used for propulsion, demand a wide price track. The inner shoe must also go through an angular gear arranged there usually kept very broad; he then needs the wide free lane in order not to drive over and push the crop in front of him.

It has therefore already been proposed to coaxially and rigidly one on the outermost cutter disc to attach pot-type clearing drum. Your way of working Cannot satisfy, because their high circumferential speed means that the mown crop is strong damaged. In addition, it consumes considerable amounts due to the friction between it and the crop Driving forces. Kach will make another suggestion a similar clearing drum behind the outermost one

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the drum is mounted on the G-est ell beam * Your coat reaches down almost to the level of the gear box and is outside the Mes3erbahnο It is driven by the gear box the end. The speed is BV / ar lower than that of the knife tr-omnieln, it can. · But, conditionally due to the smoky gear ratios, not 80 can be reduced far that the Mähgutsbe damage is avoided «In addition, owing to its small diameter, it tends to sum Winding up stalks of cuttings “Both well-known clearing drums due to their small diameter are also not able to provide the required wide driving-- ' .Lane for me.

-The mentioned defect can be solved according to the invention in that the freely rotatably mounted on the gearbox paddle drum from behind the aia • outermost cutting disc covers about its axis of rotation out and is in drive connection with its "This arrangement enables _p the paddle drum very large in diameter. As a result, it no longer tends to wind up Gutshulmen even at low speed. The overlap of the knife disc in front of its axis of rotation allows the mowed material to hit the haulm drum in a favorable conveying direction and guarantees a smooth, disruption-free transfer to the mowing swath,

The advantageous low Trormiield speed can through the type of drive seen, can be easily reached; it should preferably consist in that the inside of the Irommel coat with a protruding one Hub shoulder of the cutter disc in force or shape

6801666 04/22/76

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there is a coherent connection «

Expedient has proved SiOH, a fieibrad be placed on the I of the cutting disk, which engages with a Innenradkranz the lläumtromniel in .Operate sverbindung _t the axis of the paddle drum is connected via a leaf spring to the gear box. The clearing drum can, however, also have an inner rim and the Mabenansata can be designed as a pinion »

The. The invention also provides that the clearing drum in the form of a cone with a small Cone angle is executed * where the lower 'iromineldurchmessör approximately the öröbe of the knife disc diameter and the drum height is smaller than this diameter is.

Ea can also be beneficial for certain crops the narrowest possible swath by bringing the crop from both sides together generate au. For this year, the invention provides that a second JSaunrbronuiLel on the inside of the mower in the same way as the outer broaching tromiiiel arranged lat and covers the knife disc furthest inward.

An exemplary embodiment of the invention is shown in the drawing and will be described in more detail below described. Show it

Pig. 1 is a plan view of the cutting part of a Seheibenmähwerkes ,.

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Fig. 2 the section A - B through the Mittelaoh.se the outermost knife disc, and

5 ¹ Ig. Figure 5 is a plan view of the outer end of the gear box with the cutter was removed.

The cutter disks 1 of the embodiment example are rotatably geletgert on the gear box 2 at a lateral distance. They are driven by the Sehleppers PTO via a main drive shaft 3 and individual angular gears 4. In the exemplary embodiment, the knife disks 1 consist of circular disks with helically curved, overlapping edge area sections 5i at their deepest circumferential points, knives 6 projecting radially.

A partition plate is located on the outer edge of the gear box 2 17 offered.

A leaf spring S is fastened with two screws on the rear side of the gear box 2 at a distance from its rear wall 7. In its central area, a screw bracket 9 is screwed on _9, which is guided from the bottom upwards around the knife disc 1 and into a bearing pin 10 ends , on which a thumb drum 11 is freely rotatably mounted ”, it covers the ijabe 12 of the outermost knife disk 1“ on the inside of its wooleis 13 a rubber ring 14 is pressed in ”.

On the Kabe 12 is a friction wheel 15 is screwed "The pipe bracket 9 is such that the Käuintrominel 11 presses with the rubber ring 14 against the friction wheel 15 _f whereby the contact pressure by the tension of the sheet

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spring 8 is generated. One attached to the tubular bracket 9 AMeekbleeh 16 covers the clearing drum 11 of down and leaves only one opening for that Friction wheel 15 free,

.By the big difference av / i see the for the Drum drive effective diameters of the wheels 14 and 15 becomes the drive speed of the broach drum kept very low.

The invention is not limited to the example shown, but also applies to any disc mower with drive from below »whose mower discs are shaped differently. It is also irrelevant whether a and what severing device 17 is used.

The advantages achieved by the invention are _f that even with difficult mowed material, a sufficiently wide free lane is cleared for the tractor and inner shoe during the next mowing process, with neither the material being damaged nor the stalks being wound up.

6801666 22.OA.76

Claims (1)

1, disc mower ,. do that perpendicular. ,, im laterally spaced axes aritreibbaren Cutting discs are mounted on the top of a flat gear box »and that has on its outside a clearing drum rotating about a vertical axis, characterized in that which can be freely rotated on the gear box (2) · Te. Häumtromiael (11) from behind di, e furthest outside located knife disc (1) covered over its axis of rotation and with it in Drive connection is. 2. Seheibenaiähwerk according to claim 1, 'thereby marked that the inside of the drum shell (13) with an upwardly protruding habenaneatz (15) of the knife disc (1) is in a force-fitting or form-fitting connection. - 5 * disc mower according to claim 1 or 2, characterized in that ' on the honeycomb (12) of the knife disc (1) a lieibrad (15) is arranged, which with an inner wheel rim (14) the clearing drum (11) by spring-1 pressure is in drive connection » - 7th 4. See ibenmäh plant according to claim 3 _f, characterized in that the axis (10) of the clearing drum via a leaf spring (8) with abuti gear box (2) is connected. 5 * disc mower according to claim 2, characterized in that the clearing drum has an internal ring gear and the hub shoulder (15) is designed as a pinion. 6. Disc mower according to claim 5 _S, characterized in that the inner rim and / or pinion consist of metallic or flexible material, 7 «disc sewing unit according to one of claims 1-6, gekennzecihnet characterized in that the clearing drum (11) in the shape of a truncated cone it is designed with a small cone angle, the lower srouuaeldurehinessor approximately the Size of the knife disk diameter and the drum height is smaller than this diameter 8 »Disk mower according to one of claims 1-7? characterized in that a second clearing drum (18) on the inside of the slower in the same way as the outer clearing drum (11) is arranged and covers the most inner cutter disc. 6801666 2Z.0t.76