WO2021224706A1 - Presse à balles - Google Patents

Presse à balles Download PDF

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Publication number
WO2021224706A1
WO2021224706A1 PCT/IB2021/053325 IB2021053325W WO2021224706A1 WO 2021224706 A1 WO2021224706 A1 WO 2021224706A1 IB 2021053325 W IB2021053325 W IB 2021053325W WO 2021224706 A1 WO2021224706 A1 WO 2021224706A1
Authority
WO
WIPO (PCT)
Prior art keywords
bale
baler
pickup
wheeled
formers
Prior art date
Application number
PCT/IB2021/053325
Other languages
English (en)
Inventor
Hendrik Jacobus Van Zyl
Original Assignee
Hendrik Jacobus Van Zyl
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hendrik Jacobus Van Zyl filed Critical Hendrik Jacobus Van Zyl
Publication of WO2021224706A1 publication Critical patent/WO2021224706A1/fr

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Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
    • A01F15/00—Baling presses for straw, hay or the like
    • A01F15/07—Rotobalers, i.e. machines for forming cylindrical bales by winding and pressing
    • A01F15/0705—Arrangements for continuous operation

Definitions

  • This invention relates to agricultural machinery and, in particular, to a baler used to compress and form, cut and raked crop into compact bales.
  • balers There are a host of different types of balers ranging from small, square or rectangular balers capable of producing small bales, which can be easily handled, carried by an individual and stored, to fixed or variable chamber round balers which produce much larger, heavier bales.
  • Square balers tend to be suited for small farming practices whilst round balers are more economical for mid-sized farms.
  • round bales can be stored outside uncovered with less weather damage than square or rectangular bales.
  • balers include an automated twine binding or net wrapping mechanism which binds the bale with twine or wraps the bale with a net or plastic material before the bale is ejected from the baler to prevent forage or feed loss and to keep the bale together during transportation and handling.
  • a drawback associated with round balers is that the tractor pulling the baler generally needs to stop once the baling chamber is full or the bale has reached a predetermined size for bale binding or wrapping to be completed. Otherwise, if the tractor doesn’t stop, a bale pickup would continue to feed hay or straw into the bale chamber which would interfere with the bale binding or wrapping process or lead to unnecessary wastage. Once the bale has been bound or wrapped, it is ejected from the baling chamber, following which the tractor can advance along the windrow again. This necessitated stoppage reduces productivity.
  • the present invention aims to alleviate, at least to some extent, the drawback discussed above.
  • a baler for forming round bales from cut/harvested crop
  • the baler including: a wheeled chassis; at least two separate bale formers mounted to the wheeled chassis, each bale former defining a bale chamber for accommodating a round bale therein, each bale former being configured to form a round bale in the bale chamber; a bale pickup pivotally mounted to the wheeled chassis, the bale pickup being pivotally displaceable relative to the wheeled chassis between an inoperative retracted position in which the bale pickup is spaced away from the ground and a lowered position in which the bale pickup is closely spaced to, or engages, the ground such that it is configured to pick up cut crop; and a bale chamber feeder which abuts the bale pickup and is displaceable relative to the two bale formers and is operatively configured to receive cut crop from the bale pickup and to convey it to the respective bale chambers of the bale formers in alternating fashion.
  • the baler may be self-propelled.
  • the baler is tractor-driven. Accordingly, the baler may be hitched to and towed behind a tractor.
  • the baler may be driven or powered by the tractor’s Power Take-Off (PTO).
  • the baler may include a drawbar which is connected to the wheeled chassis and protrudes operatively in a forward direction therefrom and is configured to couple to the tractor or other draught vehicle.
  • the drawbar may include a swivel joint to facilitate turning of the baler whilst being towed.
  • the drawbar may be configured to couple to hoist arms of the tractor.
  • the baler may be able to turn up to 45 degrees to the left and right relative to the tractor.
  • the two bale formers may be arranged in a side-by-side configuration.
  • Each bale former may include a bale former gate which is pivotally mounted to a bale former body. When in an open position, the bale former gate may be configured to permit ejection of a bale from the bale chamber.
  • the respective bale formers may be chain driven, roller driven, shaft driven, belt driven or a combination of any of the above.
  • the wheeled chassis may be a single axle chassis.
  • the bale pickup may include a wheeled pickup frame which is pivotally connected to the wheeled chassis.
  • a pickup reel is mounted to the wheeled pickup frame toward a front edge thereof for rotation about a reel axis.
  • the pickup reel comprises a series of laterally spaced apart reel tines mounted to a common shaft for rotation about the reel axis.
  • the bale chamber feeder may include an open-ended feed chute which defines a diverging mouth at an operatively upstream end thereof which is configured to receive cut crop picked up by the pickup reel.
  • the bale chamber feeder may further include an in-feed chain which is configured to convey the cut crop along the feed chute to a bale chamber of the bale formers.
  • the in- feed chain comprises a series of endless chains mounted for rotation about two spaced apart axles and a plurality of spaced apart, transversely extending serrated feeder bars connected between the series of chains and configured to convey the crop through the feed chute.
  • the bale chamber feeder is pivotally mounted to the pickup frame and includes an actuator which is configured to swivel the bale chamber feeder relative to the pickup frame between first and second positions. In the first position, the bale chamber feeder is configured to convey crop to one of the bale chambers, and in the second position, the bale chamber feeder is configured to convey crop to the other of the bale chambers via the feed chute.
  • the pickup frame may include an arcuate track which is configured to receive rollers attached to the feed chute of the bale chamber feeder. The track has end stops to delimit angular displacement of the bale chamber feeder relative to the pickup frame.
  • the baler may include a wheeled bale accumulator or wheeled bale carrier which is pivotally mounted to a rear of the wheeled chassis, behind the bale formers.
  • the bale carrier may be configured to receive bales ejected from either of the bale chambers and may be configured to carry at least four round bales.
  • the bale carrier may include sensors to detect a number of bales carried at a particular point in time.
  • the bale carrier may be displaceable relative to the wheeled chassis between a retracted position in which the bale carrier is lifted off the ground and a lowered position in which wheels of the bale carrier engage the ground.
  • the bale carrier may include a bale carrier gate which is configured to pivot between open and closed positions in order to allow bales to be discharged from the bale carrier when in its lowered position.
  • the baler may further include a twine tying or net wrapping mechanism which is configured automatically to tie or wrap a bale in the bale chambers once it has reached a predetermined size.
  • the twine tying or net wrapping mechanism may be disposed toward an operatively upper, front part of the bale formers.
  • the baler may include actuators for displacing various parts of the baler.
  • the actuators may be hydraulic actuators.
  • At least part of the drawbar may be hollow. To this end, the drawbar may be configured as a hydraulic fluid reservoir.
  • the baler may include a control unit which is configured to receive input signals from the respective sensors.
  • the control unit may include a graphical display including a graphical user interface configured to provide outputs to an operator and to receive inputs from the operator.
  • the baler may be remotely controllable through use of the graphical user interface.
  • the control unit may be a remote control unit.
  • the remote control unit may include at least one camera which is configured to provide a video input stream to the graphical display.
  • the camera may be rear-view camera.
  • the bale formers may have variable or fixed bale chambers.
  • the baler may include a rotor cutter or chopper which precedes the bale chambers to cut the crop down to a predetermined length.
  • Figure 1 shows a three-dimensional view of a baler in accordance with the invention
  • Figure 2 illustrates another three-dimensional view of the baler of Figure 1 ;
  • Figure 3 shows a three-dimensional rear view of the baler with a bale carrier in a lowered position
  • Figure 4 shows a three-dimensional front view of the baler with a bale pickup in a lowered position
  • FIG. 5 shows yet another three-dimensional front view of the baler of Figure 4.
  • Figure 6 shows a three-dimensional view of the bale pickup and bale chamber feeder from the top
  • Figure 7 shows a three-dimensional view of the bale pickup from below with the bale chamber feeder in a first position
  • Figure 8 shows the bale chamber feeder in a second position
  • Figure 9 shows a three-dimensional view of the baler from the rear with the bale carrier unloading four bales
  • Figure 10 illustrates a side view of the baler of Figure 9
  • Figure 11 illustrates a blade or knife
  • Figure 12 shows an exemplary graphical user interface.
  • reference numeral 10 refers generally to a baler for forming round bales 40 from cut crop or harvested material such as hay, straw or forage. Prior to baling it may be necessary to rake the cut crop into windrows, in conventional fashion.
  • the baler 10 is configured to be towed behind a tractor (not shown) and is therefore tractor- driven by connecting a drivetrain 12 of the baler 10 to the tractor’s PTO (not shown). It is conceivable that in a different embodiment the baler may be self- propelled.
  • the baler 10 illustrated in the figures includes a single-axle wheeled chassis 13. At a foremost end, the baler 10 includes a laterally extending drawbar 14 having a clevis coupling 14.1 at each end for securing the baler 10 to hoist arms of the tractor or other draught vehicle. In addition, the baler 10 includes a lever-operated parking jack 7 which can be raised and folded away (see figure 9), when the baler 10 is in use, and lowered to support a front of the baler 10 when the baler 10 is unhitched (see figures 1 and 2).
  • the baler 10 further includes twin bale formers 15.1 , 15.2 mounted to the wheeled chassis 13 in a side-by-side configuration. Each bale former 15 defines an inner bale chamber 16 (see figure 3) and is configured to form a round bale 40 therein.
  • the baler 10 further includes a bale pickup 17 pivotally mounted to the wheeled chassis 13 such that it is displaceable relative to the wheeled chassis 13 between an inoperative retracted position (see Figure 2), in which the bale pickup 17 is spaced away from the ground, and a lowered position (see Figure 4) in which the bale pickup 17 is closely spaced to, or engages, the ground such that it is configured to pick up cut crop.
  • the baler 10 further includes a bale chamber feeder 18 which abuts an upper part of the bale pickup 17 and is pivotally displaceable relative thereto and to the two bale formers 15.1 , 15.2.
  • the bale chamber feeder 18 is operatively configured to receive cut crop from the bale pickup 17 and to convey it to the respective bale chambers 16 of the bale formers 15, in alternating fashion, as will be alluded to below.
  • the wheeled chassis 13 includes an A- frame assembly 19 which extends in a forward direction from above each wheel of the chassis 13.
  • An upright 20 of the A-frame assembly 19 is connected to the drawbar 14 via a swivel joint or turntable 5 to facilitate sharp turning of the baler 10.
  • the swivel joint 5 aims to reduce a turning circle of the baler 10 when towed behind the tractor.
  • the drivetrain 12 comprises a vertical driveshaft 12.1 which passes through the swivel joint 5 and is drivingly connected to a hydraulic pump 4.
  • the hydraulic pump 4 supplies hydraulic actuators with hydraulic fluid in order to displace various members of the baler 10, as will be described below.
  • the hydraulic fluid is stored in hollow members of the A-frame assembly 19, which doubles up as a hydraulic reservoir.
  • the vertical driveshaft 12.1 extends vertically upward into a right- angled transmission box 21.
  • the transmission box 21 may include a differential to account for any differences in angular velocity between parts of the drivetrain 12 on opposing sides of the swivel joint 5.
  • each bale former 15.1 , 15.2 includes a bale former gate 22 which is pivotally mounted to a bale former body 23 and is displaceable relative to the body 23 between open and closed positions owing to action of a hydraulic cylinder 22.1.
  • the bale former gate 22 opens rearwardly and, when in its open position, the bale former gate 22 is configured to permit ejection of the bale 40 from the bale chamber 16.2 as shown in figure 3.
  • the respective bale formers 15.1 , 15.2 may be chain driven, roller driven, belt driven or a combination of any of the above.
  • the bale formers 15.1 , 15.2 are belt and roller driven.
  • the bale formers 15.1 , 15.2 each include a belt tensioning arrangement 24 which can be adjusted to determine when a bale in the bale chamber 16 has reached a predetermined size and is ready to be tied or wrapped and ejected.
  • the bale pickup 17 includes a wheeled pickup frame 17.1 which is pivotally connected to the wheeled chassis 13.
  • the bale pickup 17 further includes and a pair of hydraulic cylinders 17.3 which are mounted between sides of the pickup frame 17.1 and the A-frame assembly 19 above.
  • the cylinders 17.3 are configured to displace the bale pickup frame 17.1 between its retracted and lowered positions.
  • a pickup reel 17.2 is mounted to the wheeled pickup frame 17.1 toward a front edge thereof for rotation about a reel axis X.
  • the pickup reel 17.2 comprises a series of laterally spaced apart reel tines 25 mounted to a common shaft for rotation about the reel axis X.
  • the bale chamber feeder 18 includes an open-ended, channel- or trough-shaped feed chute 18.1 which defines a diverging mouth 26 at an operatively upstream end thereof which is configured to receive cut crop picked up by the pickup reel 17.2 below.
  • the bale chamber feeder 18 further include an in-feed chain 18.2. Both the in-feed chain 18.2 and the pickup reel 17.2 are driven by hydraulic motors 27 (see figure 5). Through continuous rotation of the endless in-feed chain 18.2, the bale chamber feeder 18 is configured to convey the cut crop along the feed chute 18.1 to one bale chamber 16 of the two bale formers 15.1 , 15.2.
  • the in- feed chain 18.2 comprises a series of three endless chains 29 mounted for rotation about sprockets of two spaced apart axles 30, connected between opposing walls of the feed chute 18.1.
  • the in-feed chain 18.2 further includes a plurality of longitudinally spaced apart, transversely extending feeder bars 28, having serrated, operatively outwardly facing edges, connected between the series of chains 29.
  • the in-feed chain 18.2 is positioned partially within the channel-shaped feed chute 18.1 such that feeder bars 28 on an underside of the in-feed chain 18.2 are configured to grip the crop and to convey it from the mouth 26, along the feed chute 18.1 to the bale chamber 16.
  • An intake rotor 36 (see figure 5) having a plurality of angularly offset tines is provided at an entrance of the bale formers 15 and is configured to transfer the crop into the bale chamber 16.
  • a blade or knife 37 rearward of the intake rotor 36 cuts the crop down to size.
  • the bale chamber feeder 18 is pivotally mounted to the pickup frame 17.1 and includes a hydraulic cylinder 32 which is configured to swivel the bale chamber feeder 18 relative to the pickup frame 17.1 between first and second positions shown in figures 7 and 8, respectively.
  • the bale chamber feeder 18 In the first position shown in figure 7, the bale chamber feeder 18 is configured to convey crop to the bale chamber 16.1 , and in the second position shown in figure 8, the bale chamber feeder 18 is configured to convey crop to the other of the bale chambers 16.2 via the feed chute 18.1 .
  • the pickup frame 17.1 includes an arcuate track 33 which extends across arms of the pickup frame 17.1 and is configured to receive and engage rollers 34 attached to the side walls of the feed chute 18.1 of the bale chamber feeder 18.
  • the track 33 has end stops 35 to delimit angular displacement of the bale chamber feeder 18 relative to the pickup frame 17.1.
  • the twine tying or net wrapping mechanism 31 is configured automatically to tie or wrap a bale in the bale chambers 16 once it has reached a predetermined size.
  • the twine or net for the mechanism 31 is housed in a box toward an operatively upper, front part of the bale formers 15.
  • bale chamber feeder 18 As the size of the bale 40 inside the bale chamber 16 grows, greater force is exerted on belts 38 wound around the belt tensioning arrangement 24 and rollers of the bale former gate 22. Once the force exerted exceeds a predetermined threshold, it triggers the bale chamber feeder 18 to pivot to its opposite position so that tying or wrapping of the bale 40 can start before the bale former gate 22 is opened and the bale is ejected from the bale chamber 16.
  • the baler 10 includes a wheeled bale accumulator or wheeled bale carrier 39 which is pivotally mounted to a rear of the wheeled chassis 13, behind the bale formers 15.
  • the bale carrier 39 has a platform 41 which is sized to hold four bales, two from each bale former 15 (see figure 9).
  • the bale carrier 39 temporarily carries the bales 40 until a desired location is reached for unloading them if it is not desirable to have them dispersed throughout the land.
  • the bale carrier 39 includes sensors 42 (see figure 3) to detect the presence of bales 40 on the platform at a particular point in time.
  • the bale carrier 39 is displaceable relative to the wheeled chassis 13 between a retracted position, shown in figures 1 and 2, in which the bale carrier 39 is lifted off the ground and a lowered position, shown in figures 3 to 5, 9 and 10, in which castors or swivel wheels 43 of the bale carrier 39 engage the ground.
  • a pair of hydraulic cylinders 39.1 are connected between the wheeled chassis 13 and the platform 41.
  • the bale carrier 39 also includes a bale carrier gate 44 which is configured to pivot between open and closed positions in order to allow bales 40 to be discharged from a rear end of the platform 41 when the bale carrier 39 is in its lowered position. Opening and closing of the bale carrier gate 44 is facilitated by hydraulic cylinders 44.1.
  • a gate sensor 45 (see figure 9) is also provided to detect a position of the bale carrier gate 44, i.e. when the bale carrier gate 44 is open or closed.
  • the baler 10 includes a remote control unit in the form of a digital control panel provided inside the tractor cab which is configured to receive input signals from the respective sensors 42, 45 and belt tensioning arrangements 24 amongst others.
  • the remote control unit includes a graphical display including a graphical user interface 46 (see figure 12) configured to provide outputs to an operator and to receive inputs from the operator. Accordingly, the baler 10 is remotely controllable through use of the graphical user interface 46.
  • the remote control unit includes at least one camera 47 which is configured to provide a video input stream 46.1 to the graphical display.
  • the camera 47 is a rear-view camera which permits the operator to see and monitor what is happening toward the rear of the baler 10.
  • the operator can also control raising/lowering 46.2 of the bale pickup 17, raise/lower 46.3 the bale carrier 39, and open and close 46.4 the bale carrier gate 44.
  • the bale pickup 17 is lowered by extending hydraulic cylinders 17.3 and aligning the pickup reel 17.2 with the windrow.
  • the crop picked up by the bale pickup 17 is fed to the bale chamber 16.2 assuming that the bale chamber feeder 18 is in its second position.
  • the bale chamber feeder 18 automatically switches to its first position in which crop is fed into the bale chamber 16.1.
  • the twine tying or net wrapping mechanism 31 automatically starts binding the bale 40 in the bale chamber 16.2.
  • the bale former gate 22 is automatically opened to eject the bale to the bale carrier 39.
  • the bale former gate 22 then closes again and is ready to form a new bale once the other bale chamber 16.1 is full. This process repeats itself in alternating fashion until the bale carrier 39 has four bales 40.
  • the baler 10 in accordance with the invention has the ability to bale continuously, without any stoppages. As a bale is formed and ejected from the bale chamber, it is temporarily held on the bale carrier 39. Through the sensors 42 the remote control unit is able to detect once the bale carrier 39 is full in response to which it automatically lowers the bale carrier 39 and opens the bale carrier gate 44 to release the bales 40 without the tractor having to stop.
  • the bales 40 can also be released manually should the operator want to have them dropped at a specific location, for example, at the end of the land. Accordingly, the baler 10 has an advantage over conventional round balers in that stoppage is eliminated and the baler 10 can continuously bale.

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  • Life Sciences & Earth Sciences (AREA)
  • Environmental Sciences (AREA)
  • Harvesting Machines For Specific Crops (AREA)

Abstract

L'invention concerne une presse à balles (10) comprenant un châssis à roues (13) et une barre d'attelage (14). La presse à balles comprend deux dispositifs de formation de balles (15.1, 15.2) montés sur le châssis à roues dans une configuration côte à côte. Chaque dispositif de formation de balles (15) définit une chambre de balle interne (16) et est conçu pour former une balle ronde (40) en son sein. La presse à balles (10) comprend en outre un dispositif de collecte de balles (17) pouvant être déplacé par rapport au châssis à roues entre une position rétractée et une position abaissée. La presse à balles (10) comprend en outre un dispositif d'alimentation de chambre de balles (18) qui vient en butée contre une partie supérieure du dispositif de collecte de balles et peut être déplacé de manière pivotante par rapport à celle-ci et aux deux dispositifs de formation de balles (15.1, 15.2). Le dispositif d'alimentation de chambre de balles (18) est fonctionnellement configuré pour recevoir une récolte coupée provenant du dispositif de collecte de balles et pour la transporter vers les chambres de balles respectives, de manière alternée. Par conséquent, la presse à balles met en balles de manière continue sans que le tracteur n'ait à s'arrêter.
PCT/IB2021/053325 2020-05-04 2021-04-22 Presse à balles WO2021224706A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ZA202001956 2020-05-04
ZA2020/01956 2020-05-04

Publications (1)

Publication Number Publication Date
WO2021224706A1 true WO2021224706A1 (fr) 2021-11-11

Family

ID=78467900

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/IB2021/053325 WO2021224706A1 (fr) 2020-05-04 2021-04-22 Presse à balles

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WO (1) WO2021224706A1 (fr)

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248065A1 (de) * 1982-12-24 1984-06-28 Maschinenfabriken Bernard Krone Gmbh, 4441 Spelle Rollballenpresse
DE3248066A1 (de) * 1982-12-24 1984-06-28 Maschinenfabriken Bernard Krone Gmbh, 4441 Spelle Rollballenpresse
GB2324498A (en) * 1997-04-21 1998-10-28 Geoffrey Coupland Eyre Round baler
CA2709397A1 (fr) * 1998-10-23 2000-05-04 Farm Technology L.L.C. Accumulateur de bottes agricole et procede associe
DE102011118125A1 (de) * 2011-11-10 2013-05-16 Axel Roland Meyer Vorrichtung und Verfahren zum kontinuierlichen Pressen von Rundballen aus landwirtschaftlichen Erntegütern
EP2959769A1 (fr) * 2014-06-26 2015-12-30 CNH Industrial Belgium nv Moissonneuse continue, systèmes d'emballage mobiles et procédés d'utilisation associés
EP3228178A1 (fr) * 2016-03-22 2017-10-11 Forage Innovations B.V. Système et procédé de formation de balles ayant une unité de transfert de balles comprenant un poussoir de balles

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248065A1 (de) * 1982-12-24 1984-06-28 Maschinenfabriken Bernard Krone Gmbh, 4441 Spelle Rollballenpresse
DE3248066A1 (de) * 1982-12-24 1984-06-28 Maschinenfabriken Bernard Krone Gmbh, 4441 Spelle Rollballenpresse
GB2324498A (en) * 1997-04-21 1998-10-28 Geoffrey Coupland Eyre Round baler
CA2709397A1 (fr) * 1998-10-23 2000-05-04 Farm Technology L.L.C. Accumulateur de bottes agricole et procede associe
DE102011118125A1 (de) * 2011-11-10 2013-05-16 Axel Roland Meyer Vorrichtung und Verfahren zum kontinuierlichen Pressen von Rundballen aus landwirtschaftlichen Erntegütern
EP2959769A1 (fr) * 2014-06-26 2015-12-30 CNH Industrial Belgium nv Moissonneuse continue, systèmes d'emballage mobiles et procédés d'utilisation associés
EP3228178A1 (fr) * 2016-03-22 2017-10-11 Forage Innovations B.V. Système et procédé de formation de balles ayant une unité de transfert de balles comprenant un poussoir de balles

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