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EP4465806A1 - Outil de travail agricole - Google Patents

Outil de travail agricole

Info

Publication number
EP4465806A1
EP4465806A1 EP23703673.6A EP23703673A EP4465806A1 EP 4465806 A1 EP4465806 A1 EP 4465806A1 EP 23703673 A EP23703673 A EP 23703673A EP 4465806 A1 EP4465806 A1 EP 4465806A1
Authority
EP
European Patent Office
Prior art keywords
sub
carriage
implement
axle
wheels
Prior art date
Legal status (The legal status 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 status listed.)
Pending
Application number
EP23703673.6A
Other languages
German (de)
English (en)
Inventor
Christian Paessens
Johannes Büsch
Carsten Beier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Lemken GmbH and Co KG
Original Assignee
Lemken GmbH and Co KG
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 Lemken GmbH and Co KG filed Critical Lemken GmbH and Co KG
Publication of EP4465806A1 publication Critical patent/EP4465806A1/fr
Pending legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
    • A01B63/00—Lifting or adjusting devices or arrangements for agricultural machines or implements
    • A01B63/14—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors
    • A01B63/16—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors with wheels adjustable relatively to the frame
    • A01B63/22—Lifting or adjusting devices or arrangements for agricultural machines or implements for implements drawn by animals or tractors with wheels adjustable relatively to the frame operated by hydraulic or pneumatic means
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D61/00—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern
    • B62D61/12—Motor vehicles or trailers, characterised by the arrangement or number of wheels, not otherwise provided for, e.g. four wheels in diamond pattern with variable number of ground engaging wheels, e.g. with some wheels arranged higher than others, or with retractable wheels
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
    • A—HUMAN NECESSITIES
    • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01M—CATCHING, TRAPPING OR SCARING OF ANIMALS; APPARATUS FOR THE DESTRUCTION OF NOXIOUS ANIMALS OR NOXIOUS PLANTS
    • A01M7/00—Special adaptations or arrangements of liquid-spraying apparatus for purposes covered by this subclass
    • A01M7/0082—Undercarriages, frames, mountings, couplings, tanks
    • A01M7/0085—Tanks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
    • B62D—MOTOR VEHICLES; TRAILERS
    • B62D49/00—Tractors
    • B62D49/06—Tractors adapted for multi-purpose use

Definitions

  • the present invention relates to an agricultural implement according to patent claim 1 .
  • agricultural implements must be equipped with a brake system for operation and for road traffic in order to achieve the legally required braking.
  • the axle loads of the implements are limited by law in order to avoid damage to paths or roads.
  • unbraked auxiliary axles are also used on agricultural implements, on the one hand to distribute the weight over several axles, but on the other hand to only equip some of the chassis axles with braking devices in order to reduce the space required for several axles, the complexity of a braking system and its costs.
  • Such a combination chassis with braked axles and unbraked auxiliary axles is proposed in the disclosure DE 10 2019 120 535 A1.
  • the vertical loads of the individual axles are recorded by sensors and the load on the auxiliary axle is electronically controlled, also with a view to the braking effect and the brake axle loads required for this.
  • the control objectives diverge between road travel and field travel with, for example, spreading operation. While when driving on the road it is important to load the brake axle up to the legally permissible axle load in order to achieve maximum braking performance without premature locking of the wheels in the event of emergency braking, when driving in the field in the working position it is important to distribute the weight of the implement as evenly as possible over all wheels/axles in order to reduce the ground pressure that is harmful to farmland Reduce.
  • the divergent control objectives require complex, expensive and possibly failure-prone control technology.
  • the object of the invention is a structurally simple and cost-effective solution to resolve or at least improve the conflict of objectives between maximum axle load on the brake axles for improved braking when driving on roads and reduced ground pressure when driving in the field due to the implement standing up on all axles.
  • An agricultural implement in particular for tillage, has a frame and a chassis arranged on the frame, the chassis having at least a first sub-carriage and a second sub-carriage, which are arranged essentially next to one another in one direction of travel and each have at least one wheel, the at least one wheel of the first sub-carriage being arranged on a first axle line and the at least one wheel of the second sub-carriage being arranged on a second axle line, the first axle line and the second axle line being arranged at a distance from one another in the direction of travel of the implement are arranged, with at least a third sub-carriage being arranged between the first and second sub-carriage, the third sub-carriage having at least a third axle line with at least one wheel arranged thereon, and being arranged on the chassis in a height-adjustable manner by means of a hydraulic servomotor.
  • the third sub-carriage is arranged such that the third axis line, in particular in a working position and / or a transport position of the implement, in particular in the direction of travel, is arranged between the first axis line and the second axis line.
  • the implement is only in a working position outside of public traffic areas, for example when driving on a field or grassland, in which, for example, a spreading operation can take place, so that no legally required braking from road traffic takes effect.
  • a transport position of the implement on the other hand, all the requirements for public road traffic, especially with regard to the brake system, axle loads and implement dimensions, must be met.
  • the weight of the implement can usually be carried and braked in a transport position on the road by a first and second sub-carriage.
  • the sub-carriages each have at least one, usually two, wheels which are arranged on a first and a second axle line and can thus form a tandem axle with a corresponding maximum axle load.
  • the axle spacing in the direction of travel between the first and second axle line can be less than 1.3 m, preferably less than 1 m, preferably less than 0.5 m and particularly preferably 0.1 m.
  • At least one third sub-carriage is provided, the at least one wheel of which is arranged on a third axle line, the third axle line being arranged in the direction of travel between the first and second axle line, in particular in a working position and/or transport position.
  • a third axle can be designed in accordance with legal regulations, as a result of which the maximum permissible axle load in road traffic can be further increased.
  • the third part of the running gear can be designed, for example, as an unbraked auxiliary axle, and be pivotally connected to the frame of the implement with an axle swing arm and a servomotor.
  • a stable, pivotable arrangement is realized with which the third sub-carriage, in particular the auxiliary axle, can be pivoted relative to the frame and can be moved up and down relative to the ground surface by the servomotor.
  • the wheels of the sub-carriages, in particular of the first, second and third sub-carriages, can remain in contact with the ground in the working position and/or transport position of the implement.
  • the axle loads of the sub-carriages can be essentially the same, particularly in the working position.
  • the axle loads of the implement can be the same or different; in particular, the third sub-carriage can be subjected to a variable, controllable pressure by means of the servomotor, as a result of which an axle load acting on the first and second sub-carriage can be limited.
  • a third axis can be provided without any design changes to the position of the first and second sub-carriage, which makes it possible to increase the permissible weight of the implement, particularly on public roads.
  • At least one sub-carriage is preferably designed as a tandem axle with two wheels, with the wheels of the sub-carriage being arranged on the same or different axle lines. Due to the design as a tandem chassis, the weight of the implement can be distributed more evenly and undesirable soil compaction can be avoided.
  • at least the wheels of the first and second sub-carriage are assigned to a common or individual brake axle and the at least one wheel of the third sub-carriage is assigned to a braked or unbraked auxiliary axle.
  • the respective at least one wheel of the first and second sub-carriage can be an outer wheel and the at least one wheel of the third sub-carriage can be a middle wheel.
  • At least the two outer wheels are associated with a common or individual brake axles.
  • At least one middle wheel, preferably a pair of middle wheels is assigned to an unbraked auxiliary axle, the unbraked auxiliary axle being arranged on the transport chassis so that it can be adjusted in height by means of a hydraulic servomotor.
  • the implement has at least one hydraulically driven unit with a drive that is connected to a hydraulic pressure source, with both the drive of the unit and the servomotor being directly fluidly connected to the same pressure source.
  • the implement has at least one hydraulically driven unit, for example a soil cultivation tool, an application device or a fan.
  • the unit is connected to a hydraulic pressure source, with both the drive of the unit and the servomotor being directly fluidly connected to the same pressure source.
  • the working device is operated in the working position outside of public traffic areas, for example when driving in fields on arable or grassland soil.
  • the unit can be put into operation by subjecting the unit to hydraulic pressure from the pressure source.
  • the axle load of the third sub-carriage and its wheels can be increased by a direct fluidic connection of the pressure source to the servomotor, for example a hydraulic cylinder or hydraulic actuator, through which the third sub-carriage can be actuated in a height-adjustable manner the ground to be raised.
  • the dimensions of the servomotor and pressure ratios can be coordinated for safe operation of the unit so that the wheels of the third sub-carriage can absorb a, in particular the same, proportion of the weight of the implement as the adjacent first and second sub-carriage.
  • the hydraulic pressure source is switched to zero pressure
  • the servomotor can also be switched to be free of actuating force in addition to the hydraulically driven unit.
  • the third sub-carriage can be provided with an end stop, so that both the wheels of the first and second sub-carriage, in particular the brake axles, and the wheels of the third sub-carriage, in particular the auxiliary axles, can assume approximately the same position on a level ground surface.
  • the end stop can be implemented in such a way that the servomotor for adjusting the height of the third sub-carriage, in particular the auxiliary axle, has a maximum or minimum installation dimension and thus a corresponding end position of the adjustment movement.
  • An end stop can also be designed in the form of a lockable position, in particular a lockable end position.
  • the end stop can be designed to be adjustable, so that the lower position of a wheel of the third sub-carriage, in particular the auxiliary axle, slightly exceeds the position of the wheels of the first and second sub-carriage, particularly the brake axles.
  • the drive is preferably connected to a return, in particular an unpressurized return.
  • a return in particular an unpressurized return.
  • an overload of the third sub-carriage, in particular the auxiliary axle or the servomotor, which exceeds the back pressure generated by the drive to operate the unit, can cause an overload pressure, for example if the third sub-carriage, in particular the auxiliary axle, hits an obstacle or a bump.
  • the overload pressure can escape through the return line of the drive by overcoming the pressure drop across the hydraulic drive. Since the back pressure of the drive increases only slightly and temporarily as a result, there is no need for additional pressure protection of the servomotor against overload.
  • the third sub-carriage, in particular the auxiliary axle can thus always be sprung and resiliently secured against overload in a working position of the implement. Nevertheless, approximately the same ground pressure can be applied to the ground traveled on by all wheels.
  • the two outer wheels of the first and second part of the running gear are each associated with another wheel that is further inwardly adjacent to one, in particular the same, or each to a brake axle.
  • the ground contact area of the wheels can be increased and the ground pressure caused by the weight of the implement can be further reduced.
  • a number of the wheels on the outer sides of the implement can be as high as those in a central area, which can be assigned, for example, to the third sub-carriage, for example in the form of an unbraked auxiliary axle.
  • two wheels of the third sub-carriage can be assigned in the form of an unbraked auxiliary axle, as well as two other wheels adjacent to each other on the respective outer side of the implement, which are assigned to a first and second sub-carriage in the form of one or more brake axles can be arranged.
  • This arrangement can apply in particular to the wheels, which relate to a transport position of the implement on public roads. All wheels may have the same dimensions and/or approximately the same wheel spacing.
  • the sub-carriages in particular the brake axles and auxiliary axles, each have a pair of stub axles on which the respective wheels are rotatably mounted, the stub axles arranged in pairs relative to one another, in particular of the first and second sub-carriages, having a horizontal center distance to one another in the direction of travel of the implement.
  • Stub axles of the third sub-carriage can be arranged with a center distance corresponding to a center distance of the first and second sub-carriage, or have a smaller or larger center distance than the first and second sub-carriage, wherein at least one stub axle or an axle line of the third sub-carriage can be arranged between the axle lines of the first and second sub-carriage. Due to the staggered arrangement of the wheels in the longitudinal direction of the implement or in its direction of travel, a relative movement of the wheels to one another can arise as a result of the wheels rolling onto the ground of the field.
  • the additional auxiliary axles Due to the pivotability of the additional auxiliary axles arranged on the outside of the working device, they can support the weight of the working unit on the ground in a working position in which their wheels together with the wheels of the first and second partial running gear arranged further inwards, in particular the brake axles, as well as the third partial running gear, in particular the middle unbraked auxiliary axle.
  • the outer auxiliary axles can be moved or swiveled to a less wide transport position above the ground. In this transport position, the implement weight can only rest on the first and second partial chassis, in particular the brake axles.
  • the weight of the implement in the transport position can also be distributed over the first, second and third sub-carriages, with the weight distribution being able to be the same or different on the sub-carriages.
  • the other sub-carriages in particular braked or unbraked auxiliary axles, which extend further outwards from the first and second sub-carriage, in particular the brake axles, in the direction of the width of the implement, are connected to the implement via an auxiliary frame that can be pivoted or tilted about pivot axes, with the pivot axes being arranged in the direction of travel or perpendicular to the ground.
  • hydraulic servomotors can also be used, which each side subframe with the other wheels in the can shift to the desired position.
  • the pivot axis of the axle rocker of the central auxiliary axle can be aligned transversely to the direction of travel, so that it can pivot up and down without colliding with the adjacent wheels of the brake axles.
  • the weight of the implement is borne in approximately equal parts by the sub-carriages and their wheels, and in a transport position of the implement, in particular when the unit is not in operation, the weight of the implement is borne only by the first and second sub-carriages and their wheels, in particular the brake axles.
  • the wheel geometries and the distances between the movable bearings of the third sub-carriage, in particular the auxiliary axles, and its servomotor as well as the pressure supply and the resulting counter-pressures can be coordinated in such a way that when the unit is in operation, the weight of the implement is borne in approximately equal parts by all wheels of the implement and in a transport position, when the unit is not in operation, the weight of the implement is borne only by the wheels of the first and second sub-carriage, in particular the brake axles.
  • a state of the chassis of the implement can be set in which the weight of an implement can be evenly supported on the ground both by the wheels of the first and second partial chassis, in particular the brake axles, and by the third partial chassis, in particular one or more auxiliary axles.
  • the wheels of the first and second partial chassis in particular the brake axles
  • the third partial chassis in particular one or more auxiliary axles.
  • the weight of the implement in a working position of the implement, in particular when the assembly is in operation, is borne in approximately equal parts by the sub-carriages and their wheels, and in a transport position of the implement, in particular when the unit is not in operation, the weight of the implement, which is borne by the first and second sub-carriages, in particular the brake axles, is limited to an adjustable maximum value, in particular a maximum value prescribed by law.
  • the first and second sub-carriage can be rigidly connected to the frame of the implement. Due to the pivotable mounting of the third sub-carriage by means of the hydraulic servomotor, a force acting on the ground through the third sub-carriage can be adjusted.
  • the third sub-carriage In a working position, for example in a field, the third sub-carriage can be aligned with respect to the ground and/or the frame in substantially the same way as the first and second sub-carriages. This has the advantage that the weight of the implement is essentially distributed evenly over all sub-carriages and thus the soil can be saved.
  • the hydraulic servomotor of the third sub-undercarriage can be connected to and pressurized by a pressure source, for example in the form of a pressure accumulator, folding hydraulics and/or via a hydraulic system of a towing vehicle.
  • the servomotor can be locked after a pressure has been applied which is suitable for relieving the first and second partial chassis down to a maximum permissible axle load.
  • the servomotor By locking, for example by closing a supply line, the servomotor can maintain the required pressure without a corresponding pressure having to be provided by a pressure source.
  • the servomotor which is in particular locked, can be connected to a pressure accumulator, for example a membrane accumulator, as a result of which overload protection for the third sub-undercarriage can be implemented.
  • the pressure acting on the servomotor can be adjustable, as a result of which a force acting on the ground of the third sub-undercarriage connected to the servomotor can be adjustable.
  • weight of the implement acting on the first and second sub-carriages which weight can be determined, for example by means of axle load sensors, in such a way that only a maximum permissible axle load rests on the first and second sub-carriages.
  • a weight of the implement that exceeds the permissible maximum axle load, for example 11 tons, can be absorbed by the third sub-carriage and its third axle line.
  • the hydraulic servomotor is designed so that it can be subjected to an adjustable pressure.
  • the wheels of the third sub-carriage In the transport position, the wheels of the third sub-carriage can remain in contact with the ground and, by means of an adjustable support relative to the ground, can reduce an axle load acting on the first and second sub-carriage down to a maximum permissible value.
  • the third partial chassis can have at least one braked axle.
  • FIG. 2 shows a sectional plan view of the running gear with three axle lines shown in FIG. 1;
  • Figure 3 is a perspective view of what is shown in Figures 1 and 2
  • FIG. 1 shows an agricultural implement 1 in the form of a spreading vehicle, which has a frame 2 and a chassis 3 .
  • the chassis 3 is arranged in the rear area of the implement 1 .
  • the implement 1 is connected, preferably via a drawbar 26, to a towing vehicle 13, which moves the implement 1 in a direction of travel 24 over a surface of a floor 22.
  • the ground 22 can be an agricultural field or grassland, but also a road surface.
  • the towing vehicle 13 has a hydraulic system (not shown) with a hydraulic pump, which draws hydraulic fluid from a tank and makes it available to the pressure source 9 via a switchable valve.
  • the towing vehicle 13 has a return 25 through which the hydraulic fluid is pressureless or with only a slight back pressure is returned to the tank.
  • the hydraulic system can also be implemented as the agricultural implement 1's own hydraulic system.
  • the pressure supply 9 and the return 25 are detachable couplings for separating the towing vehicle 13 and implement 1 .
  • the pressure supply 9 is designed to be switchable on the side of the implement 1 or the towing vehicle 13 .
  • the working device 1 can be a hydraulic push-off truck, for example.
  • the unit 8 can be a discharge device in the form of a displaceable wall of the container 20, which, by means of a drive 10, which is then designed as a hydraulic cylinder, unloads material 21 to the rear out of the container 20 and, for example, feeds it to a distribution device 17.
  • the drive 10 is connected to the pressure source 9 via the lines 27 and 29 .
  • a T-connector 30 branches off the connection between the pressure source 9 and the line
  • the servomotor 7 is designed as a hydraulic cylinder, preferably as a single-acting hydraulic cylinder.
  • the unit 8 is designed as a displacement pump or pneumatic compressor, which is actuated in rotation via the drive 10 .
  • the compressor generates an air flow with which liquid or grainy or granular material 21 is discharged or expelled from the container 20 by means of a discharge line 19 by means of a connecting line 18 .
  • the material 21 can also be discharged by means of an ejector arranged below the container 20 or a dosing device, which is then connected to the connecting line 18 and the discharge line 19 .
  • the material is distributed via the discharge line 19 behind the implement 1 over a wide area or in rows by the distribution device 17 on the ground 22 or introduced into its surface.
  • the drive 10 designed as a hydraulic motor has a return connection, via which the hydraulic fluid from the pressure source 9 flows back through the line 31 almost without pressure from the pressure source 9 to the compressor through the line 31 into the return 25.
  • This pressure gradient can be between 50 and 250 bar, for example.
  • the pressure gradient is sufficient to also apply pressure to the servomotor 7 in order to generate the necessary actuating force.
  • the drive 10 can be a hydraulic motor for driving a scraper floor, a conveyor belt, a screw conveyor or a similar continuous conveying device, with which material 21 is discharged from the container 20 at the bottom thereof.
  • a chassis 3 with a plurality of wheels 4 , 5 is fastened to the frame 2 in a rear area of the implement 1 and supports a large part of the weight of the implement 1 on the ground 22 .
  • the weight of the implement, which is supported on the drawbar 26 and the towing vehicle 13, is negligible for the invention. Therefore, only the weight of the implement 1 resting on the chassis 3 is considered.
  • a third sub-carriage 34 in particular an auxiliary axle 6, wheels 5,5' from FIG. in particular the auxiliary axis 6 would cover, not shown for the sake of clarity.
  • the third sub-carriage 34 or the auxiliary axle 6 is pivotally connected to the frame 2 by means of an axle rocker 11 and is articulated to one end of the servomotor 7, preferably the piston rod of a hydraulic cylinder.
  • the other end of the servomotor 7 is connected to the frame 2 in an articulated manner. Due to the change in length of the servomotor 7, which is caused by pressure being applied by the pressure source 9 and/or the counter-pressure by the drive 10, the auxiliary axle 6 can be moved with its axle rocker 11 from an upper alternative position shown to a lower position and at the same time support part of the weight of the implement 1 in a working position, while the pressure source 9 is switched on, by means of the wheels 4, 4' on the ground.
  • At least part of the weight of the implement 1 can also be absorbed by the third sub-carriage 34 and its wheels 4, 4', and a first and second sub-carriage 32, 33 can thus be relieved up to a maximum permissible axle load.
  • the hydraulic fluid displaced by the servomotor 7 can escape into the return line 25 either through a safety device (not shown) of the pressure source 9 or via or through the drive 10 .
  • the evasive movement of the third sub-carriage 34 takes place at most by the illustrated swiveling height h upwards.
  • the actuating force generated by the servomotor 7 falls on the third sub-carriage 34 . It therefore rests loosely on the floor 22 with its own weight and does not carry any additional weight of the implement 1. Rather, the entire implement 1 is now carried by the wheels 5, 5', which are fixed in height to the frame 2 and which are assigned to the first and second sub-carriages or the brake axles 12 described below in Figure 2. Due to the almost full load of the implement weight on the brake axles 12, they can develop their full braking effect in the context of the implement weight.
  • the servomotor 7 connected to the pressure source 9 can also be pressurized in a controlled manner, as a result of which the first and second sub-carriages 32, 33 and their wheels 5, 5' can be relieved in a controlled manner so that they do not exceed the maximum axle loads permitted by law.
  • the servomotor 7 can be connected, for example, to a pressure source 9 in the form of a pressure accumulator or the hydraulic system of the towing vehicle 13 .
  • Figure 2 shows the chassis 3 with a cross tube of the frame 2.
  • a first sub-carriage 32 and a second sub-carriage 33 in the form of brake axles 12 are fixed to the cross tube of the frame 2 on the outside.
  • first and second sub-carriages 32, 33 can also be arranged on the frame 2 so that they can be lifted out.
  • the first and second partial chassis 32, 33 or the brake axles 12 have axle stubs 14, to which the wheels 5, 5' are attached by means of rotatable wheel hubs.
  • the brake axles 12 are provided with commercially available drum brakes which, as shown, are actuated in a known manner by means of brake actuating cylinders and brake levers.
  • the dimensions and braking decelerations of the brake axles 12 are dimensioned in such a way that they alone are able to brake the implement weight, which weighs on the chassis, in the manner required by law.
  • a third sub-carriage 34 in the form of an auxiliary axle 6 is arranged in a height-adjustable manner between the first and second sub-carriages 32, 33, as previously described in FIG. The height movement is represented by the arrow.
  • the third sub-carriage 34 or the auxiliary axle 6 is also provided with stub axles 14 and wheels 4, 4' rotatably attached thereto, but the stub axles 14 of the auxiliary axle 6, as shown, do not have a brake hub, but only unbraked rotatable running hubs.
  • the chassis 3 shown has a left and a right brake axle 12 and between them the central, unbraked auxiliary axle 6.
  • Axle stubs 14 and the wheels 4, 4' and 5, 5' are arranged in pairs on all axles.
  • the wheels 5, 5' of the first and second sub-carriages 32, 33 are arranged on a first axis line 15 and a second axis line 16.
  • the first and second axis line 15, 16 are seen in the direction of travel 24 at a distance a distance from each other arranged.
  • This axle distance a which shows a displacement or offset of the axle stubs 14 or their axle centers 15, 16 per axle 12, 6 in the direction of travel 24, causes the rolling movement of the chassis 3 to cause the wheels 5, 4, 5 to move relative to the wheels 5', 4', 5'.
  • the wheelbase is at most the value of an outer wheel radius of the wheels 4, 5 and/or at least the amount of a wheel space between the wheels 5, 5' or 4, 4', which are assigned in pairs to a respective axle 12 or 6, but at a minimum about 50 mm or 2 inches / inch.
  • the third sub-carriage 34 (FIG. 3) has a third axis line 35 on which the wheels 4, 4' of the third sub-carriage 34 are arranged.
  • the third axis line 35 is seen in the direction of travel 24 between the first and second axis line 15, 16, whereby a third axis is formed within the existing space.
  • the additional third axle line 35 has the advantage that the permissible total weight of the implement 1 can be increased when driving on public roads.
  • Chassis 34 Third partial chassis

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Zoology (AREA)
  • Soil Sciences (AREA)
  • Environmental Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Handcart (AREA)

Abstract

La présente invention concerne un outil de travail agricole pourvu d'une structure et d'un train de roulement disposé sur la structure, le train de roulement comprenant au moins un premier train de roulement partiel et un deuxième train de roulement partiel qui sont disposés sensiblement l'un à côté de l'autre dans une direction de déplacement et comportent chacun au moins une roue, la ou les roues du premier train de roulement partiel étant disposées sur une première ligne axiale et la ou les roues du deuxième train de roulement partiel étant disposées sur une seconde ligne axiale, la première ligne axiale et la deuxième ligne axiale étant disposées à une distance axiale l'une de l'autre dans la direction de déplacement de l'outil de travail, au moins un troisième train de roulement partiel étant disposé entre les premier et deuxième trains de roulement partiels, le troisième train de roulement comportant au moins une troisième ligne axiale avec au moins une roue disposée dessus, et est agencé de manière réglable en hauteur sur le train de roulement au moyen d'un servomoteur hydraulique. Selon l'invention, le troisième train de roulement partiel est disposé de telle sorte que la troisième ligne axiale, en particulier dans une position de travail et/ou une position de transport de l'outil de travail, est disposée entre la première ligne axiale et la deuxième ligne axiale.
EP23703673.6A 2022-01-20 2023-01-20 Outil de travail agricole Pending EP4465806A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102022101261 2022-01-20
PCT/DE2023/100045 WO2023138737A1 (fr) 2022-01-20 2023-01-20 Outil de travail agricole

Publications (1)

Publication Number Publication Date
EP4465806A1 true EP4465806A1 (fr) 2024-11-27

Family

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Family Applications (2)

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EP23703673.6A Pending EP4465806A1 (fr) 2022-01-20 2023-01-20 Outil de travail agricole

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DE102022127967A1 (de) * 2022-10-24 2024-04-25 Amazonen-Werke H. Dreyer SE & Co. KG Landwirtschaftliche Verteilmaschine zum Ausbringen von Saatgut, Dünge- und/oder Pflanzenschutzmittel

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EP0779778B1 (fr) * 1994-09-06 1998-07-01 Horsch Maschinen GmbH Machine agricole
DE102004004334A1 (de) * 2003-02-20 2005-09-01 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Landwirtschaftliches Arbeitsgerät
US7931285B2 (en) * 2009-02-11 2011-04-26 Agco Corporation Tag axle attachment for an off road agricultural applicator vehicle
CN101797542B (zh) * 2010-03-22 2012-05-23 李殿荣 三轮自走式可调植物中期管理机
DE102010037108A1 (de) * 2010-08-23 2012-02-23 Amazonen-Werke H. Dreyer Gmbh & Co. Kg Fahrwerk für ein landwirtschaftliches Gerät
DE102019120535B4 (de) 2019-07-30 2023-10-26 Kumm Technik GmbH Landwirtschaftlicher Anhänger mit automatischer Stützlasteinstellung
PL4070634T3 (pl) * 2021-04-08 2024-05-20 Czajkowski Maszyny Sp. Z O.O. Urządzenie do uprawy gleby i/lub do rozprowadzania nasion i/lub nawozu

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EP4465807A1 (fr) 2024-11-27
WO2023138737A1 (fr) 2023-07-27
DE102023101469A1 (de) 2023-07-20
WO2023138735A1 (fr) 2023-07-27

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