DE20022895U1 - Collection vehicle for sile bales - Google Patents

Description

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'JiJ' ¹ JJ '·..*.?. Dr. Werner Hassler Patent Attorney Asenberg 62 2: 58507 Luedenscheid ■ . a Applicant: Karsten Pieper Stillebeul 75 58515 Luedenscheid Collection vehicles for silage bales Description

23 November 2000 AOOlOl

The invention relates to a collection vehicle for silage bales, the frame of which accommodates a pickup device and a sliding track for picking up and moving the silage bales.

DE 3121816 A1 describes a collection vehicle of the generic type with a gripper-like pick-up device that grasps a round bale wrapped in film between its arms and lifts it up. This can easily cause damage to the film in which the round bales are wrapped. This applies in particular to silage bales, into which oxygen can penetrate if the film is damaged, so that the contents of the silage bale suffer.

The object of the invention is to ensure gentle handling of the silage bales.

This object is achieved according to the invention in that the pickup device has two support arms seated on a web, which receive a silage bale with an axis aligned parallel to the support arms, that the web can be pivoted upwards and lifts the silage bale over the side wall of the sliding track and that the sliding track is designed as a roller track.

The invention differs from the prior art in that the support arms are moved in the axial direction of the silage bale when it is picked up and gently grip under the outer surface of the silage bale. The silage bale is lifted by the support arms with support from below, without pressing or exerting pressure on the film, and is transported over the side wall into the roller conveyor, where it lies with its axis in the longitudinal direction of the frame. Damage to the film is thereby excluded. The collection vehicle is operated from the tractor, so that no additional operator is required.

A symmetrical pick-up of the silage bale is ensured by two roller conveyors aligned parallel to each other forming a channel with a V-shaped cross-section.

The silage bales are concentrated on the collection vehicle by a slider that can be moved longitudinally on the central axis of the frame.

The drive of the slider is also hydraulically such that a chain guided over a sprocket and a deflection wheel drives the slider and that the sprocket is driven by a hydraulic motor

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This means that the entire collection vehicle can be operated using the tractor's hydraulics.

The lifting of the silage bales by the pickup device is ensured by the fact that the web on one side of the frame is arranged so that it can pivot around a pin.

Alignment of the silage bales on the support arms is ensured by the fact that the support arms end in fingers pointing away from each other.

In order to avoid damage to a silage bale during transfer to the roller conveyor, it is proposed that a roller be arranged in the area of the support arms on the associated side wall, the axis of which is aligned parallel to the longitudinal direction of the frame.

The unloading of the silage bales at the collection point is made easier by the fact that the drawbar and the frame can be pivoted against each other around an axis.

An embodiment is explained with reference to the drawings, in which:

Fig. 1 a side view of the collection vehicle and

Fig. 2 a rear view of the collection vehicle.

The collection vehicle 1 according to Fig. 1 is designed as a trailer for a tractor, in particular for a tractor. However, a self-propelled collection vehicle 1 can also be provided.

In the case of the collection vehicle 1 shown as a trailer, a frame 2 sits on a single-axle chassis 3 with two wheels 4 and has a drawbar 5 on the front for attaching to a towing vehicle (not shown) such as a tractor. The drawbar 5 can be pivoted vertically about an axis 6 aligned horizontally, transversely to the longitudinal direction of the frame 2, by means of a hydraulic device 7 shown in dash-dotted lines, so that the drawbar 5 can be bent vertically relative to the frame 2. As a result of this bending, the rear end of the frame 2 is pivoted downwards.

Side walls 8 and center rails 9 are mounted on the frame 2, between which a slot 10 remains free in the central longitudinal axis of the frame 2. A center rail 9 and a side wall 8 each carry a roller conveyor 11, if necessary on an intermediate frame. The roller conveyors 11 are inclined in opposite directions to one another and form a channel with a V-shaped cross-section. A tubular slide 12 is guided within the slot 10. A chain 21 is guided within the slot 10 via a chain wheel 22 and a deflection wheel 23. The slide 12 is coupled to the chain 21. The chain wheel 22 is driven by a hydraulic motor 24. The hydraulic motor 24 is operated by the driver of the tractor.

At the front end of the frame 2, a pivotable pick-up device 13 is arranged on one side. The pick-up device 13 comprises an angled web 14, the leg 15 of which is offset at an approximately right angle and can be pivoted about a pin 16 aligned in the longitudinal direction of the frame 2. The hydraulic drive device for pivoting the web 14 is not shown in detail. Two adjustable support arms 17 are seated on the web 14, which are aligned in the longitudinal direction of the frame 2 and whose distance can be adjusted to the respective diameter of the silage bale. The support arms 17 end in fingers 18 directed away from one another. A

A seated, also pivotable leg 19 serves to stabilize the arrangement. In the area of the pickup device 13, a roller 20 is arranged on the associated side wall 8, the axis of which is aligned parallel to the longitudinal axis of the frame 2.

The collection vehicle is operated by the tractor's hydraulics. The hydraulics are not explained in detail. During hay harvesting, the respective harvesting vehicle or baler places silage bales on the meadow, which are then picked up by the collection vehicle.

To pick up a silage bale, the collection vehicle 1 is driven in the direction of the axis of a sillage bale with the pickup device folded down, see Fig. 2 in dash-dotted representation, so that the support arms 17 are aligned parallel to the axis of the sillage bale and are pushed forward laterally from the support line of the sillage bale under the casing of the same. The support arms 17 thus slide laterally under the casing of the sillage bale, with the angled fingers 18 guiding the sillage bale. As soon as the support arms 17 are completely under the casing of the sillage bale, the collection vehicle 1 stops. The pickup device is pivoted up by approximately 90° so that the sillage bale rolls over the roller 20 into the V-shaped groove between the roller conveyors 11. The roller 20 supports this movement of the sillage bale.

In this position of a silage bale, the hydraulic motor 24 is driven and moves the chain 21 so that the tubular slider 12 in the roller conveyor 11 is moved towards the rear end of the collecting vehicle 1 and reaches the rear end of the collecting vehicle 1. The chain wheel 22 is then driven in the opposite direction so that the slider 12 returns to its starting position.

The next silage bale can then be collected on the meadow in the manner described. This silage bale is pushed by the pusher 12 against the silage bale that has already been deposited. In this way, several sillage bales, approximately 4 to 6 sillage bales, can be placed on the collection vehicle 1.

As soon as the collection vehicle 1 is completely loaded with silage bales, the collection vehicle is driven to a collection point for the silage bales. There, the drawbar 5 is pivoted about the axis 6 by the hydraulic device 7, so that the frame 2 is bent relative to the drawbar 5 and the rear end of the frame 2 is pivoted downwards. The silage bales are moved backwards with the support of the slider 12 and deposited at the collection point or depositing point.

Claims (8)

1. A collection vehicle for silage bales, the frame of which accommodates a pickup device and a displacement track for receiving and displacing the sillage bales, characterized in that the pickup device ( 13 ) has two support arms ( 17 ) seated on a web ( 14 ), which receive a sillage bale with an axis aligned parallel to the support arms ( 17 ), that the web ( 14 ) can be pivoted upwards and lifts the sillage bale over the side wall of the displacement track and that the displacement track is designed as a roller conveyor ( 11 ). 2. Collection vehicle according to claim 1, characterized in that two roller conveyors ( 11 ) aligned parallel to one another form a channel with a V-shaped cross-section. 3. Collection vehicle according to claim 1 or 2, characterized in that a slider ( 12 ) is displaceable in the longitudinal direction on the central axis of the frame ( 2 ). 4. Collection vehicle according to claim 3, characterized in that a chain ( 21 ) guided over a chain wheel ( 22 ) and a deflection wheel ( 23 ) drives the slider ( 12 ) and that the chain wheel ( 22 ) is driven by a hydraulic motor ( 24 ). 5. Collection vehicle according to one of claims 1 to 4, characterized in that the web ( 14 ) is arranged on one side of the frame ( 2 ) so as to be pivotable about a pin ( 16 ). 6. Collection vehicle according to one of claims 1 to 5, characterized in that the support arms ( 17 ) end in fingers ( 18 ) directed away from one another. 7. Collection vehicle according to one of claims 1 to 6, characterized in that in the region of the support arms ( 17 ) on the associated side wall ( 8 ) a roller ( 20 ) is arranged, the axis of which is aligned parallel to the longitudinal direction of the frame ( 2 ). 8. Collection vehicle according to one of claims 1 to 7, characterized in that the drawbar ( 5 ) and the frame ( 2 ) can be pivoted relative to one another about an axis ( 6 ).