DE2357723A1 - TRACTOR ATTACHMENT TO REMOVE FEED PORTIONS FROM DRIVING SILOS - Google Patents

Description

PATE H TANWSLTE η *> r π ** ο *>

2357/23

DlPL-INS. DR, IUR. DIPL.-IN6.

VOLKER BUSSE DiETRlCH BUSSE

45 Osnabrück _s November 16, 1973

MOSERSTRASSE 2O / 24

Alfons Sprehe

28 * 11 Harpendorf

Sehlepper attachment for removal in front of putter port ions from driving silos

The invention relates to a tractor attachment 2; for the removal of fodder portions in bale form from silos, consisting of a support frame that can be connected to the tractor with a tine fork attached to its lower end and with guides for an up and down running perpendicular to the plane of the tine bite movable _s a separating element supporting carriage or slide. · wherein the separating element has an approximately rectangular ₉ on its side facing the tine fork 'lower narrow side provided with knives frame "

In one known device diesor type DIE lower .Schmalseite of the frame immediately forms the knife edge at a _s the Abwärtsbewegung.des'Trennorgans the lining in the clamp

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penetrated and from this divides a substantially cuboid \ bale, which is gripped from below by the prong fork on its underside. Such a configuration requires a high knife pressure in order to drive the knife edge through the putter. This requires a heavy construction that can cope with the loads that occur and large, expensive hydraulic cylinders for actuating the separating element. But even at high 'cutting Press a reliable and difficulties in separating a bale of feed is not always guaranteed because _s especially long-fiber components Putter knife oppose a high resistance. The device, which is limited to relatively small ball cross-sections in order to avoid excessive loads | requires a hone of forage layers in a driving silo

lovely overhanging, undesirable construction height. j

Furthermore, a device of the type mentioned is known in which the underside of the frame is equipped with double finger knives ₃ which perform a scissor-shaped cut with alternating movement. Are in this case can only straight running and moving knife used that to-the lediglicö along .of two of the three frame legs extend and accordingly describe an approximately L-Foei--shaped line "liucfe such a design is structurally complex ₉ · verhältnisi"> The small bale formats that can be separated are limited and, if the L-shaped cutting line is visible, it requires the removal of the bales of food from the silo in a certain order.

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The invention is based on the object of a device of the initially called type to create, with the Futcerballen a largely Any bale cross-sectional shape can be separated from the forage in mobile silos and that with a structurally simple construction allows for a clean cutting out of feed.

For this purpose, the device according to the invention is primarily characterized in that the frame forms a guide link for an endless cutting _{element encompassing the cash register, driven in a parallel to the level of the tine fork, rotating s endless cutting element s} which is equipped with expanding bodies for widening the kerf. The cutting member is preferably formed by a unilaterally occupied with cutting blades and cutting movement in the direction of this downstream roller chain sprags _s lie can be performed at high robustness and easy along the desired cutting line without diverting pulleys. The device according to the invention enables _{bales of largely any cross-sectional configuration to be cut out of the forage of mobile silos with a simple s} lighter and space-saving design, with in particular clean cuboid bales being able to be cut out. The Trennorgau provides it a clean cut examined at _a feed compositions which a cutter by ^ process due to resistance or Langfaserigkeit normally oppose considerable resistance.

With a bale cut out the maximum height only The device can go along with the installation height that is insignificantly larger than the all three legs of the rphmens incision made independently

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j depending on any order at any suitable point of the driving silo to feed in this and butter divide.

In a further embodiment of the invention, the support frame also supports a ball that can be placed on top of the food to be separated from the feed, along the guides of the support gesture. ¹ Is up and down sliding hold-down _{device from 3} with, whose help the bale of fodder can be held securely on the tine fork during the separation process and after this when moving from the silo to a feeding station.

Further features and advantages emerge from the claims and the description in conjunction with the drawing, in which several embodiments of the subject matter of the invention are illustrated in more detail are show it:

Fig. 1 is a schematic, simplified side view of the device according to the invention,
a top view see Fig. 1,

in a detail view an enlarged view of the separating organ *,

a cross section through the separator, a side view 'similar rig. lesser modified Execution of the device «? according to the invention, a plan view of Fig. 5,

a side view similar to FIG. 5 of the device when dividing a bale of fodder,

Fig. 2 Fig. 3 Fig. 4th Fig. 5 Fig. 6th Fi ₆ . 7th

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8 shows a broken individual illustration of an embodiment

of the hold-down device with milling tape, and FIG. 9 shows a side view of FIG. 8.

^{The device which can be attached to the lower link 1 f} at 1 and 2 to the upper link 2 'of the three-point hydraulic system of an agricultural tractor comprises a support frame 3 _S which is provided with a fork 4 on its underside. In the example shown, the base of the sink fork 4 has the shape of a rectangle, as can best be seen from FIG. The support frame 3, with its U-shaped rails 3 "vertical guides dai _'s in which a carriage or slide 5 slidingly or by means of rollers 5' is slidable up and down. A separating unit 6 is attached to this carriage 5, which has an essentially rectangular contour in plan view and, in the example shown, presents rounded front corners 22. The carriage 5 is od on chains. 7 or the like, suspended, which guide wheels 8 _S 9 on the supporting frame 3 umlaufen- The lower pulleys 9 are mounted on a common shaft 9 _s attaches the its drive via a 'ratchet-pawl Wechselgetr-ove 10 of a transmission 12 over a link 10 "receives. The transmission 12 is connected to the articulated shaft connector on the tractor via a cardan shaft 11. Vertical spline shafts 13 are driven by the transmission 12 via intermediate connections or transmissions, on which chain wheels 14 of the separating unit S are arranged so as to be longitudinally displaceable. ■ · ',

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The separating unit 6 comprises in detail an essentially rectangular hollow profile support 17 (FIG. 4) in the example shown, inside which a guide gap for a roller chain 15 delimiting guide rails 16 are arranged. The roller chain 15 _{s are} screwed to the lower straps l8 of the cutting blades 19 or fastened with other suitable quick-release fasteners, together with these forms a cutting link which is driven endlessly in front of the shafts 13 via the chain wheels lH, which as a result of the guidance in the carrier 1? works in a plane parallel to the plane of the Zinkelgabel'4. The frame 17 encloses! the roller chain 15 and has on its lower narrow side a passage slot for the knives 19, which are designed as triangular pieces with a scfolifr suitable for silage. The cutting edge of the knife 19 is shown in FIG. 19 'indicated. On the plates 18 of the roller chain ·. 15, expansion bodies 20 are also attached, which, as shown, can consist of cones or wedge pieces = these expansion bodies 20, which are rigidly attached to the lugs 18 of the roller chain 15 and can be rotated on an axis of rotation if they are designed as cones, are used for this purpose to expand den.by a preceding knife 19 formed cutting gap in the putter to a width that allows easy penetration of the separating member 6 in its entirety into the feed mass. Accordingly, the conical expansion bodies 20 shown have a width at their base which slightly exceeds that of the frame 17. A retaining wall 21 can be provided on the top of the frame 17,

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_r .

closing the kerf above the frame 17 counteracts and at the same time has a holding function on a cut bale. The height of such a wall 21 can for example 20 to 50 cm.

In order to cut out a bale of fodder from the coherent fodder in a silo, the separating unit 6 is raised so that when the tine fork H pushes into the fodder, it overlaps the top of the fodder. Then the cutting member 15 _S 19 is put into operation and the cutting unit 6 is moved downwards as a whole until the one above the tine fork
Feed area is separated as a bale. By lifting the entire device with the aid of the tractor hydraulics, the
Bales from the surrounding area. The feed area is lifted out and can be moved to a desired unloading point. Before that, by switching the pawls on the change gear 10, the separating unit can be completely or partially moved back into an upper starting position. Appropriately, however, this is only moved so far downwards during a process that it still encloses the divided bale as a holder.

The execution of the Cerates according to FIGS. 5 to 7 corresponds to essential of the Fig. 1 to * », but with a number of Modifications. First and foremost, the support frame still supports on the top of the feed in the area of the bale of feed to be separated placeable hold-down device 22, which runs along the guides 3 'of the support frame 3 is slidable up and down. This low

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Holder 22 in FIGS. 5 to 7 imfaftt a lever carrier 24 held with t'leit pieces 23 above the carriage 5 in the guides 3 ^{1 of} the support frame 3, which is designed as a double carrier and is combined into a bow-shaped component via a cross member 25. ' A holding member 27, which in the example shown is designed as a substantially rectangular tubular bracket, is supported on the cross member 25 via a suspension device 26. The suspension device 26 comprises an upper plate 28 and a lower plate 29 as well as springs 30, which press the two plates against one another and accordingly align the lower plate 29 with the upper plate. In this way, the holding bracket PJ has an orientation parallel to the tine fork in the starting position. If, however, the retaining bracket 27 rests on an uneven top side of the lining, the retaining bracket 27 can perform a displacement or evasive movement permitted by the springs for adjustment purposes.

The sliders attached to the ends of the lever support ? 5 experiences a clamping on the support frame 3 in the counterclockwise direction from the starting position upwards. This upwardly directed pivoting movement occurs when the hold-down device 22 rests on the upper side of the chuck, but still executes a certain downward movement relative to the retaining bracket 27 in the area of the sliding pieces. To bring about this

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Downward movement are provided on the Ws. Ge η 5 locking clutches' 31, which engage with an upward movement of the carriage 5 on pin 32, but disengage from the pin in a downward movement if the sliding pieces 23 oppose such a downward movement with too high a resistance . D5es is the fall, v'enn as a result of the pivoting movement of the lever carrier 2k, the self-. jamming of the sliding pieces occurs in the guides. The latching couplings include, in particular, two tabs 33 which are pressed together by an adjustable spring 3Ί and together delimit a pin eye into which the pin 32 on the associated slider 23 can fall.

The drive of the roller chain 15 takes place in turn via chain wheels l4, which are arranged on spline shafts or the like 13 mounted vertically on the support frame 3 and are supported in the separating unit 6. To drive the shafts 13, an intermediate shaft 35 is used, ie in the region of its upper end and the upper end of a shaft 13 above a. Chain drive, V-belt drive or the like 36 drives one of the two shafts 13 shown. The intermediate shaft 35 is based on a central gear 37 which can be connected to the PTO shaft connection of the tractor via a cardan shaft and carries an eccentric 38 which actuates the rocker arm H of a freewheel indexing gear * 12 via a plunger 39 and an intermediate overload spring Ho. From this gear 42, the drive shaft 9 'for the driven deflection wheels 9 of the drive chain 7, which can always be driven step by step in the direction of the arrow hj>, and the carriage via an intermediate link ¹ J ^{il is actuated}

409832/0282 ^BA0 ORIGINAL

takes away. In this embodiment, the separating unit 6 executes a downward movement and, without a change in direction, of the movement of the drive chain 7, it also carries out an upward movement again.

To cut out a bale 45 (FIG. 7), the separating unit 6 is moved downwards from an upper end position in which it is connected to the hold-down device 22 via the latching couplings 31 after the prong 4 has been pierced into the putter, the bale being separated progressively will. Shortly after the initiation of the cutting movement, the hold-down device 22 rests with its holding bracket 27 on the top of the forage in the ball area and, as a result of the engagement of the locking coupling 31, comes into pressure engagement with the top of the forage. The lever support 24 undergoes a slight pivoting in the counterclockwise direction, whereby the sliders 23 of the support frame 3 arrive in small Main handle in the guides 3 ¹ and 22 prevent the hold-down at a "Eiteren downward movement. The separating unit 6, which continues to move downwards, is released from the hold-down device 22 by spreading the tabs 33 and continues on its way until the bale 45 has been completely separated from the rest of the fodder. To set down the bale of fodder at a desired point of use for fodder, the separating unit is raised again so far that the locking couplings 31 engage with the pins 32 of the sliders 23 and take them upwards, causing the lever carrier 24 to counter-pivot

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while releasing the clerical lock Raise the cutting unit and hold-down device to an upper starting position is in it the device for a renewed removal process ready. FIGS. 8 and 9 show a modified hold-down device in which a milling tape is used at the location of the retaining bracket 27 46 is suspended as a holding member which can be operated independently by means of a separate drive 47. That in a housing 48 housed milling tape 46 creates the possibility, in addition to fulfilling its holding function on transport routes and during Cutting After removing the bale, mill off the forage from the top of the bale and loosen it up for consumption To be able to supply feeding places for animals. The direction of movement of the milling belt 46 is symbolized in FIG. 9 by the arrow 49 and runs transversely to the piercing direction of the tine fork 4 in the feed of a driving silo.

In a modification of the illustrated embodiment, the device can also be attached to a front loader harness instead of being attached to the three-point hydraulic system of a tractor. Furthermore, a band equipped with knives and support bodies or a flexible saw blade provided with the support body can also be used as the cutting element. It is also conceivable to give the hold-down a separate drive for up and down movements.

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Claims (10)

Expectations: 1.7 Tractor attachment for removing putter portions in bale form from silos, consisting of a support frame that can be connected to the Schlenper with a tine fork attached to its lower end and with guides running perpendicular to the plane of the tine fork for a carriage or slide that can be moved up and down and supports a separating element, wherein the separating member has an approximately right-angled frame provided with knives on its lower narrow side facing the prong fork, characterized in that the frame (17) has a guide link for a guide slot for a knife (19) encompassing and parallel ^{to the plane of the prong fork (10)} Plane driven revolving, endless cutting member (15,18,19) is formed, which is occupied with expanding bodies (20) for widening the kerf. 2. Apparatus according to claim 1, characterized in that the cutting member of one-sided cutting knife (19) and in cJcut movement direction this downstream expansion body (20) bearing roller chain (15,18) is formed. 3.. Apparatus according to claim 1 or 2, characterized in that the frame (17) has a box-shaped hollow profile which is attached its underside has a continuous slot for the knife to pass through presents. 409832/0282 4. Apparatus according to claim 3, characterized by inside of the frame (17) arranged and extending along this Pührungsschxenen (16) j which between them a Fürrungsspalt for the roles of the roller chain (Ib, 18) limit. 5. Apparatus according to one or more of claims 1 to 4, characterized in that the expansion body (20) as a cone or Wedge bodies are formed. 6. Apparatus according to one or more of claims 1 to 5, characterized in that the support frame (3) has one on top of the putter can be placed in the area of the bale (45) to be separated, along the guides (3) of the support frame and from the sliding hold-down device (22). 7. Apparatus according to claim 6, characterized in that the hold-down device (22) comprises a lever carrier (24) held with sliders (23) above the carriage or slide (5) in the guides (3 ^{1) of the Tragg.estells (3)} at the free end of which a holding member (27, 46) which can be placed on the top of the feed in the area bounded by the frame (17) for the cutting element (15, 18, 19) is suspended. 8. Apparatus according to claim 7, characterized in that the -, holding member is designed as a holding bracket (27) aligned in the starting position in a parallel position to the level of the tine fork (4), 409832/0282 which can be deflected to a limited extent via a resiliently flexible suspension (26 ) and has a contour that essentially corresponds to the cross-sectional contour of the bale to be cut out. 9. Device according to one or more of claims 6 to 8, characterized in that the sliders (23) of the lever carrier (24) can be coupled via locking couplings (3D with the carriage or slide (5) for a limited common up and down movement and the sliding pieces oine have an eccentric shape that clamps the support frame (3) ^{in the guides (3 1} ) during a pivoting movement of the lever carrier from an initial position upwards. 10. Device according to one or more of claims 6, 7 or 9, characterized in that the holding member is from a presband (16) formed with a separate, independently operable drive (47) is. - 409832/0282 Blank page