DE102022120862A1 - AGRICULTURAL WORKING MACHINE AND METHOD FOR ADJUSTING WEIGHT DISTRIBUTION IN AN AGRICULTURAL WORKING MACHINE - Google Patents

Abstract

The invention relates to an agricultural working machine (100), preferably a mobile, towable agricultural working machine (100), for cultivating a soil (B) and/or for introducing an agricultural commodity into a soil (B), with a main support frame (151, 152), on which a pulling device (130) is adjustably arranged on a front side (FS), via which the work machine (100) can be pulled in a direction of movement (BR) in a transport state and in an operating state, wherein on the main support frame (151, 152) at least one first support device (110.1, 100.2, 100.3) is arranged to be adjustable for transmitting at least a first force component (F_100.1) of an operating weight force (F_100) of the work machine (100) to the floor (B), at least on the work machine (100). a second support device (120.1, 120.1, 120.2) is arranged to be adjustable for transmitting at least a second force component (F_100.2) of the operating weight force (F_100) to the ground (B), the pulling device (130) being used to transmit a third force component (F_100. 3) the operating weight force (F_100) is configured, and wherein at least one actuator device (181, 182) for adjusting a position of the pulling device (130) is actuably arranged on the main support frame (151, 152) in order to generate at least a force component (F_100.1, F_100.2, F_100.3) of the first, second and third force components (F_100.1, F_100.2, F_100.3) depending on at least one operating parameter of the work machine (100), preferably at least the second force component (F_100.2 ) or at least to increase the third force component (F_100.3). The invention further relates to a method for adjusting a distribution of the operating weight (F_100) in an agricultural machine (100).

Description

The present invention lies in the field of agricultural technology and relates to an agricultural working machine, preferably a mobile, towable agricultural working machine. The agricultural machine is configured to cultivate a soil and/or to introduce an agricultural commodity, for example seeds and/or fertilizers, into a soil. The present invention further relates to a method for adjusting a distribution of the operating weight in an agricultural machine.

Mobile agricultural machines are used in the field of agriculture to cultivate a soil, for example arable land, or to spread seeds into a soil. Mobile agricultural machines are often towed agricultural machines without their own drive unit, which are set in motion by a separate tractor, for example a farm tractor. Here, a pulling force is applied to the agricultural machine in order to pull the machine across a field.

In order to meet the increasing demands for higher performance and reduced operating time, agricultural machines with increasingly larger working widths are in use. This is accompanied, for example, by an increase in the size and thus the capacity of storage containers carried for the respective agricultural goods in the form of seeds and/or fertilizers.

However, with larger working widths and larger working machines overall, there is the problem of maintaining the maximum permissible dimensions of the working machine, especially in a transport state. Such dimensions in the form of lengths, widths/depths or heights are specified, for example, in respective laws and/or regulations and must not be exceeded, otherwise a driving license for driving on public roads and paths cannot be granted. Another problem is an uneven weight distribution that occurs during an operating state of the machine, i.e. during field work.

Various solutions are known from the prior art to counteract uneven weight distribution in an agricultural machine. For example, support devices for the work machine in the form of so-called packer rollers or support wheels are used.

For example, European patent application No. EP 0 405 377 A1 a sowing arrangement with a harrow in the form of a rotary harrow or vibrating harrow. The sowing arrangement includes front support wheels and rear support wheels, a height-adjustable packer roller, and height-adjustable seed coulters. The sowing arrangement is configured as an attachment for coupling to a so-called three-point power lift of a tractor vehicle, whereby a large proportion of the weight of the sowing arrangement is transferred to the tractor vehicle in the operating state. However, such a working machine is limited in size due to the direct attachment to the tractor vehicle.

Agricultural machines now have their own chassis, so that their size - both in transport and in operation - is not limited by the towing vehicle. The disadvantage, however, is that, particularly in the operating state and thus during field work, the operating weight of the working machine must be transferred to the ground, i.e. to the ground surface and/or the upper layers of the ground, by means of support devices. If an even, balanced distribution of weight cannot be achieved, this often leads to uneven processing and/or compaction of the soil by the machine.

Carrying a storage container for an agricultural good to be distributed, for example seeds and/or fertilizers, often worsens the distribution of the operating weight of the agricultural machine, especially when in operation. This is particularly the case when a fill level of the storage container or several individual fill levels of individual containers in the storage container change.

In international patent application no. WO 2019/233527 A1 An agricultural device is described which has a first support wheel and a second support wheel as well as a frame for connection to a tractor. Both the first support wheel and the second support wheel are each supported relative to the frame with a support mechanism. The first and second support mechanisms are coupled to one another and are connected to an energy storage device, so that the first support wheel and the second support wheel can be force-controlled and can be deployed in accordance with one another relative to the frame.

The German disclosure document no. DE 10 2011 050 195 A1 concerns a drawn, an a tractor-trailer attached agricultural implement with a height-adjustable chassis and a drawbar. In a front area directed towards the tractor, the device includes support devices in the form of support wheels for maintaining a predeterminable or variable distance from the ground surface. The device is coupled to height-adjustable cylinders of the chassis by a hydraulic coupling of a drawbar cylinder.

It is an object of the present invention to provide an improved agricultural working machine which is characterized by a relatively large working width and optimized weight distribution, especially in the operating state. Furthermore, it is an object of the present invention to provide an improved method for adjusting weight distribution in an agricultural machine, especially in the operating state.

The task is solved by the features of independent claims 1 and 19. Further exemplary embodiments and applications of the present invention result from the dependent claims and are explained in more detail in the following description with partial reference to the figures.

According to a first general aspect, the present invention relates to an agricultural working machine, preferably a mobile, towable agricultural working machine, for cultivating a soil and/or for introducing an agricultural product into a soil, with a main support frame on which a pulling device is adjustably arranged on a front side, over which the work machine can be pulled in a direction of movement in a transport state and in an operating state, with at least one first support device on the main support frame for transmitting at least a first force component of an operating weight of the work machine to the ground, preferably in the transport state and / or in the operating state , is arranged adjustable, wherein at least one second support device for transmitting at least a second force component of the operating weight of the work machine to the ground, preferably in the transport state and / or in the operating state, is adjustable on the work machine, wherein the traction device for transmitting a third force component the operating weight of the work machine, preferably on the ground via a tractor, preferably in the transport state and / or in the operating state, and wherein at least one actuator device for adjusting a position of the towing device is actuably arranged on the main support frame in order to at least a force component of the to change the first, second and third force components depending on at least one operating parameter of the work machine, preferably to increase at least the second force component or at least the third force component.

Depending on the position of the pulling device and/or the actuation of the at least one actuator device based on at least one operating parameter, the third force component and thus a third supporting force on the pulling device can preferably be increased or reduced, which, for example, is conversely accompanied by a reduction or increase in the second supporting force can. In other words, the work machine according to the present invention is characterized in that corresponding support forces can be adjusted on the at least one first support device and/or on the at least one second support device as a result of a corresponding actuation of the at least one actuator device via the change in position of the pulling device. According to the invention, the at least one actuator device is actuated depending on at least one operating parameter, which will be described in more detail below.

It is possible that the at least one actuator device is arranged to be actuable for adjusting a position of the at least one first support device and/or a position of the at least one second support device, preferably in order to preferably at least one force component of the first, second and third force component depending on at least one to change further and / or different force components of the first, second and third force components.

According to a further aspect of the present invention, it can be provided that the at least one first support device and the at least one second support device are coupled to one another via at least one coupling device of the work machine, preferably kinematically coupled to one another, in order to adjust the at least one first support device essentially synchronously to transmit to the at least one second support device and/or to transmit an adjustment of the at least one second support device essentially synchronously to the at least one first support device.

It is possible that the at least one coupling device is designed as a rod, a lever, a handlebar, a rocker arm or as a coupling cylinder, or that the at least one coupling device comprises a rod, a lever, a handlebar, a rocker arm or a coupling cylinder, and/o in that the at least one coupling device is formed by a master-slave system, which is preferably configured electro-mechanically, electro-pneumatically and / or electro-hydraulically with at least one coupling cylinder.

The at least one actuator device for adjusting a position of the at least one first support device and/or a position of the at least one second support device can be designed to be actuable and can vary in terms of its length or extent by appropriate actuation in the operating state and/or in the transport state. The at least one coupling device for adjusting a position of the at least one first support device and/or a position of the at least one second support device can be adjustable in terms of its length or extent, but can have a substantially constant length or extent in the transport state and in the operating state. Variants of the design and/or configuration of the at least one actuator device and the at least one coupling device are described in more detail below.

It is possible for the at least one second support device to be arranged on the main support frame or on a tool unit, that is to say a tool unit of the work machine, for processing the soil and/or for introducing the agricultural goods into the ground, the tool unit being adjustable on the main support frame , preferably pivotably adjustable, is arranged. Preferably, the at least one second support device is rigidly arranged on a tool support frame of the tool unit.

A tool support frame is preferably a frame which carries at least one tool of the tool unit. In a view in the direction of movement, the tool unit can be arranged laterally on the main support frame in an adjustable, preferably pivotable, manner. In other words, the tool unit contributes to the working width of the work machine in the operating state. The working width of the work machine is preferably the width or extension of the work machine in the operating state transversely or perpendicular to the direction of movement. It is of course possible for the work machine to comprise at least one further tool unit with a further second support device. In a view in the direction of movement, a tool unit with a second support device can be arranged on a left side on the main support frame in an adjustable, preferably pivotally adjustable manner, and a further tool unit with a second support device can be arranged on a right side on the main support frame in an adjustable, preferably pivotable manner be.

According to a further aspect of the present invention, it can be provided that at least one further actuator device and/or at least one further coupling device for adjusting the position of the at least one first support device and/or the position of the at least one second support device is actuably arranged on the main support frame to adjust the first force component and the second force component independently or depending on the third force component.

It is possible for the work machine to comprise an actuating device for controlling and/or regulating the at least one actuator device or all actuator devices of the work machine, preferably by means of an actuating force in each case, in order to increase at least the third force component and the first force component depending on the at least one operating parameter and/or to reduce the second force component, or at least to reduce the third force component and increase the second force component, preferably by manual operating input via an input device and/or at least partially automated.

The at least one operating parameter can include at least one of the following: a detected working depth of the work machine in the operating state, preferably at least one tool unit of the work machine for processing the soil and/or for introducing an agricultural commodity into the ground; a detected slip of a tractor coupled to the tractor for moving the work machine in the direction of movement; and/or at least one detected fill level of at least one container of the work machine for carrying at least one agricultural good, wherein preferably the at least one container is rigidly arranged on the main support frame.

According to a further aspect of the present invention, it can be provided that the at least one first support device and/or the at least one second support device is pivotally mounted relative to the main support frame, preferably substantially perpendicular to the direction of movement, that is to say about an axis which is substantially perpendicular is arranged to the direction of movement, and / or wherein the at least one first support device and the at least one second support device are spaced apart from one another in a view in the direction of movement or perpendicular to the direction of movement are arranged, wherein preferably the at least one second support device is arranged between the pulling device and the at least one first support device, and / or that the at least one first support device is arranged on a rear side of the work machine, and / or that in a view in the direction of movement or Perpendicular to the direction of movement, at least one tool unit for processing the soil and / or introducing the agricultural goods into the ground is arranged between the at least one first support device and the at least one second support device.

It is possible for the at least one first support device to be configured as a chassis in order to transfer a total axle load of the work machine to the ground in the transport state, wherein preferably the at least first support device comprises at least one axle section for rotatably supporting at least one wheel, and preferably the at least one wheel has a tire which is made of an elastic material, preferably of a rubber-elastic material.

According to a further aspect of the present invention, it can be provided that the main support frame comprises a first support frame and a second support frame, wherein the first support frame is arranged on the second support frame in an adjustable, preferably pivotable, manner, the pulling device on the first support frame and the at least a first support device is arranged on the second support frame, wherein the at least one actuator device for adjusting a position of the first support frame relative to the second support frame is actuably arranged between the first support frame and the second support frame.

It is possible for the at least one second support device to be arranged on the first support frame or on the second support frame or on at least one tool unit for processing the soil and/or for introducing the agricultural material into the ground, preferably on a tool frame of the at least one tool unit is arranged, wherein the at least one tool unit is arranged on the second support frame in an adjustable, preferably pivotable, adjustable manner.

It is possible for at least one stop to be arranged on the first support frame or on the second support frame between the first support frame and the second support frame, in order to preferably limit pivoting movements of the first support frame relative to the second support frame, preferably in the operating state, and/or where the first support frame is designed as a drawbar or comprises a drawbar.

According to a further aspect of the present invention, it can be provided that the work machine has a container for carrying an agricultural good, the container, preferably in a view in the direction of movement, on the main support frame between the at least one first support device and the at least one second support device or is arranged between the at least one first support device and the pulling device.

It is possible for the work machine to comprise at least one further tool unit for processing the soil and/or for introducing the agricultural goods into the soil, which is adjustable, preferably pivotable, on the main support frame, preferably on a first support frame or on a second support frame of the main support frame adjustable, is arranged, wherein the at least one further tool unit comprises at least one further first support device for transmitting at least the first force component of the operating weight of the work machine to the ground together with the at least one first support device in the operating state, and / or that the at least one further tool unit at least one further second support device for transmitting at least the second force component of the operating weight of the work machine to the ground together with the at least one second support device in the operating state.

According to a further aspect of the present invention, it can be provided that at least one actuator device for adjusting a position of the at least one further tool unit is actuably arranged on the main support frame, preferably in order to set a substantially uniform and/or substantially constant working depth for processing the soil and /or to set a substantially uniform and/or substantially constant working depth for introducing the agricultural material into the ground.

According to a further aspect of the present invention, it can be provided that the at least one first support device and / or the at least one second support device each act as at least one support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a double profile ring packer roller , a tire packer roller, and / or is designed as a packer profile roller, or that the at least one first support device and / or the at least one second support device each at least a support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a double profile ring packer roller, a tire packer roller, and / or a packer profile roller.

According to a further aspect of the present invention, it can be provided that the at least one actuator device or all actuator devices of the work machine are designed to be electrically, mechanically, pneumatically and / or hydraulically actuated, and / or that the at least one actuator device or all actuator devices of the work machine each have a safety device , preferably against overload, or are connected to a safety device, and / or that the at least one actuator device or all actuator devices of the work machine each include a limiting device and / or a valve device or are connected to a limiting device and / or a valve device. A working medium for actuating the at least one actuator device can be, for example, compressed air or pressurized hydraulic oil. Preferably, the at least one actuator device is designed as a double-acting hydraulic cylinder.

The present invention relates, according to a second general aspect, to a method for adjusting a distribution of the operating weight in an agricultural working machine for cultivating a soil and/or for introducing an agricultural crop into a soil, the working machine preferably being configured as disclosed herein, wherein on the Main support frame at least one actuator device for adjusting a position of the pulling device is actuated in order to change at least a force component of the first, second and third force component depending on at least one operating parameter of the work machine, preferably to increase at least the second force component or at least the third force component.

To avoid repetition, features that are aimed purely at the device of the agricultural machine according to the invention and/or disclosed in connection with it should also be considered disclosed in accordance with the method and can be claimed and vice versa.

The previously described exemplary embodiments and features of the present invention can be combined with one another in any way. Further or other details and advantageous effects of the present invention are explained in more detail below with reference to the attached figures.

• 1 ein erstes Ausführungsbeispiel der landwirtschaftlichen Arbeitsmaschine gemäß der vorliegenden Erfindung in einer perspektivischen Ansicht;
• 2 die landwirtschaftliche Arbeitsmaschine aus 1 in einer Seitenansicht mit ausgeblendeten Komponenten und Elementen;
• 2A einen Ausschnitt (Ausschnitt Z in 2) der Arbeitsmaschine aus 2 in vergrößerter Darstellung;
• 3 einen Ausschnitt eines Hydraulikschaltplans mit zwei Aktuatoreinrichtungen der landwirtschaftlichen Arbeitsmaschine aus 1.

Show it:

• 1 a first embodiment of the agricultural work machine according to the present invention in a perspective view;
• 2 the agricultural working machine 1 in a side view with components and elements hidden;
• 2A a section (section Z in 2 ) of the working machine 2 in an enlarged view;
• 3 a section of a hydraulic circuit diagram with two actuator devices of the agricultural machine 1 .

Identical or functionally equivalent components or elements are marked with the same reference numerals in the figures. To explain these, reference is also made in part to the description of other exemplary embodiments and/or figures in order to avoid repetition.

The following detailed description of the exemplary embodiments shown in the figures serves for further illustration or clarification and is not intended to limit the scope of the present invention in any way.

1 shows a perspective view of a first exemplary embodiment of the agricultural work machine 100 according to the present invention (hereinafter also referred to as “work machine 100”).

The working machine 100 in 1 is a mobile, towable agricultural machine 100 for processing a soil B and/or for introducing or distributing an agricultural good into the soil B, wherein the introduction or distribution of an agricultural good includes in particular the sowing of seeds and/or fertilization with fertilizers. In other words, the work machine 100 is a work machine 100 that can be attached to a tractor. The tractor is preferably an agricultural tractor and is not shown in the figures for reasons of clarity. The tractor can be, for example, an agricultural tractor in the form of a wheeled tractor or a crawler tractor. It is also possible that the tractor is a so-called agrotruck. The tractor preferably includes its own drive unit and provides a (resulting and/or idealized) operating tractive force F_Z for pulling and thus moving the work machine 100 in a direction of movement BR. The direction of movement BR is therefore the direction of travel or pulling direction of the work machine 100. The work Machine 100 may be in a transport state or in an operating state while moving.

The operating state is preferably that state of the work machine 100 in which the work machine 100 can be operated as intended and/or properly, especially to ensure function and safety. In other words, the operating state relates to or includes the field work of the work machine 100. The transport state is preferably that state of the work machine 100 in which the work machine 100 is used as intended and/or properly, especially to ensure the transport of the work machine 100, preferably on public roads and/or or paths, whereby, for example, legal requirements regarding permissible dimensions are adhered to.

Out of 1 It follows that the work machine 100 is preferably a so-called combined work machine 100, which is also referred to as an agricultural machine combination. Due to its mass, the work machine 100 is characterized and/or defined by a resulting and/or idealized operating weight force F_100. The operating weight F_100 can change accordingly, generally reduce, as part of a working process of the work machine 100 during field work and thus in an operating state of the work machine 100 as a result of a change in the mass.

The work machine 100 comprises a main support frame 151, 152 in the form of a first support frame 151 and a second support frame 152. The main support frame 151, 152 represents the central and / or supporting frame of the work machine 100. The main support frame 151, 152 is therefore designed in several parts. The main support frame 151, 152 can alternatively also be designed in one piece, preferably in one piece and rigid.

The first support frame 151 and/or the second support frame 152 can each have, at least in sections, longitudinal beams and/or cross beams with closed hollow profiles (for example with essentially square cross-sections and/or with essentially rectangular cross-sections and/or with essentially round cross-sections) and/or with semi-open profiles (for example essentially U-shaped profiles and / or essentially H-shaped profiles and / or essentially T-shaped profiles), struts, flanges, shoulders and / or projections, for example to provide a necessary stability in relation to to ensure the transmission of a force portion of the operating weight F_100 and/or to ensure the necessary stability against occurring mechanical loads in the form of static and dynamic bending loads, vibration loads and torsional loads. These occur in particular in the operating state of the work machine 100, that is, during the movement of the work machine 100 in the direction of movement BR over the ground B during field work.

The first support frame 151 is adjustable, preferably position-adjustable, and in particular pivotally adjustable on and/or opposite the second support frame 152. In other words, the position and thus the position and/or the orientation of the first support frame 151 relative to the second support frame 152 can be adjusted, preferably by means of a pivoting movement of the first support frame 151 on or relative to the second support frame 152. The first support frame 151 is preferred designed as a drawbar or includes a drawbar.

The first support frame 151 comprises a pulling device 130 on a front side FS and/or at a free end. The pulling device 130 is configured to receive the operating tractive force F_Z of the tractor in the direction of movement BR in order to be able to set the work machine 100 in motion. Additionally or alternatively, the pulling device 130 is configured to transmit an operating support load F_100.3, which represents a force component of the operating weight force F_100 of the work machine 100 and will be described in more detail below.

The towing device 130 is designed as a so-called lower link attachment for inclusion in pivotally adjustable lower link catch hooks of a tractor and for transmitting the operating tractive force F_Z.

In any case, the work machine 100 can be pulled in the movement direction BR via the pulling device 130 in the transport state and in the operating state.

On the main support frame 151, 152 of the work machine 100 according to the present invention and in particular in the present exemplary embodiment of the work machine 100, a first support device 110.1 is arranged on the second support frame 152. The first support device 110.1 is arranged on a rear side HS of the work machine 100 and thus on a side opposite the pulling device 130 (in the direction of movement BR). The first support device 110.1 is for transmitting at least a (resulting and/or idealized) first force component F_100.1 and thus a first support force F_100.1 the operating weight force F_100 of the work machine 100 is configured and arranged in an adjustable, preferably position-adjustable manner on the floor B in the transport state and/or in the operating state. It is therefore possible to adjust the position and/or the orientation of the first support device 110.1 relative to the second support frame 152, which will be described in more detail below.

Furthermore, a second support device 120.1 is arranged on the main support frame 151, 152 and in particular in the present exemplary embodiment of the work machine 100 on the first support frame 151 on which the pulling device 130 is arranged (see also 2 and particularly 2A) . The second support device 120.1 is rigid on the first support frame 151, that is, its position relative to the first support frame 151 is arranged unchangeable or immovable. The second support device 120.1 is configured to transmit at least a (resulting and/or idealized) second force component F_100.2 and thus a second support force F_100.2 of the operating weight F_100 of the work machine 100 to the ground B in the transport state and/or at least in the operating state and arranged together with the first support frame 151 in an adjustable, preferably position-adjustable manner. Above all, it results from 2 in that the first support frame 151 is arranged on the second support frame 152 in a pivotable and adjustable manner together with the second support device 120.1, which includes a pivotable mounting on the second support frame 152.

In an alternative embodiment 100 of the present invention, it is possible for the second support device 120.1 to be arranged on and/or relative to the first support frame 151 in an adjustable, preferably pivotable, manner. The second support device 120.1 can thus be pivotally mounted on the first support frame 151 or on the second support frame 152, depending on the exemplary embodiment of the work machine 100, preferably by means of at least one bearing device. In the present exemplary embodiment of the work machine 100, the second support device 120.1 and the first support frame 151 are pivotally mounted relative to the second support frame 152 as a unit on the second support frame 152 (see the curved double arrows in 2 in the area of the first support frame 151 and the second support device 120.1).

As can be seen from the illustration in 1 results, the first support device 110.1 and the second support device 120.1 are arranged spaced apart from one another in a view in the direction of movement BR, that is to say arranged at a distance from one another, the second support device 120.1 being arranged between the pulling device 130 and the first support device 110.1.

The first support device 110.1 and/or the second support device 120.1 can each be designed as at least one support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a double profile ring packer roller, a tire packer roller, and/or as a packer profile roller be, or each comprise at least one support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a double profile ring packer roller, a tire packer roller, and / or a packer profile roller.

As can be seen from the illustration in 1 results, in the exemplary embodiment of the work machine 100 shown, both the first support device 110.1 and the second support device 120.1 are each designed as a tire packer roller. The first support device 110.1 comprises twelve wheels 111, of which, for reasons of clarity, one wheel 111, which is in 1 is partially visible. The second support device 120.1 includes six wheels 121, of which in 1 For reasons of clarity, a wheel 121 is marked.

As can be seen from the illustration, the wheels 111 of the first support device 110.1 and the wheels 121 of the second support device 120.1 are equipped with different tires, that is, with different profiles. The wheels 121 of the second support device 120.1 include studded tires, while the wheels 111 of the first support device 110.1 include essentially treadless tires. For the rotatable mounting of the wheels 111 and 121, both the first support device 110.1 and the second support device 120.1 comprise respective axle sections on which the wheels 111 and 121 are rotatably mounted.

As can also be seen from the 1 results, the work machine 100 comprises several tool units 161, 162, 163 for processing the soil B and / or for introducing the agricultural goods into the soil B. The tools of the tool unit 161 are on the main support frame 151, 152 and in particular on the second support frame 152 arranged and carry out an adjustment of their position, that is, a change in the position and/or orientation essentially together with the second support frame 152. The further tool unit 162 and the further tool unit 163 are each pivotable as a self-sufficient, that is to say separately mountable, tool unit via storage devices the main support frame 151, 152, preferably on the second support frame 152. Furthermore, the other tool units are 162 and 163 are each adjustable in position and thus in their position and/or orientation by means of at least one actuable actuator device 182. This is particularly relevant for the formation of the transport state of the work machine 100, in which the further tool units 162 and 163 are folded away from the floor B and spaced apart from one another, but are arranged essentially opposite one another. In other words, the tool units 162 and 163 can be pivoted by means of the respective actuator device 182, i.e. folded up as seen from the floor B, so that they are arranged opposite one another, so that the work machine 100 can then be moved on a public road, for example, in the transport state.

Furthermore, both the further tool unit 162 and the further tool unit 163 each comprise a further first support device 110.2 and 110.3 for transmitting at least the first force component F_100.1 of the operating weight F_100 of the work machine 100 to the ground B together with the first support device 110.1 in the operating state.

In addition, both the further tool unit 162 and the further tool unit 163 each comprise a further second support device 120.2 and 120.3 for transmitting at least the second force component F_100.2 of the operating weight F_100 of the work machine 100 to the ground B together with the second support device 120.1 in the operating state .

Both the further tool unit 162 and the further tool unit 163 include a respective tool support frame, which is not marked in the figures for reasons of clarity. The respective further first support device 110.2 and 110.3 can be designed analogously to the first support device 110.1 as disclosed herein and/or can be arranged on the tool support frame of the tool unit 162, 163. The respective further second support device 120.2 and 120.3 can be designed analogously to the second support device 120.1 as disclosed herein and/or can be arranged on the tool support frame of the tool unit 162, 163.

In the present exemplary embodiment, the respective further second support device 120.2, 120.3 is rigidly arranged on the respective tool support frame of the tool unit 162, 163. The respective further first support devices 110.2, 110.3 are pivotally adjustable on the respective tool support frame of the tool unit 162, 163 by means of a respective coupling device 172 in the form of a coupling cylinder and assume a permanently constant position relative to the respective tool support frame.

Of course, both the first support device 110.1 as well as the second support device 120.1 and the further support devices 110.2, 110.3, 120.2 and 120.3 include, in addition to rolling elements in the form of tires or rollers, appropriately designed support structures or support elements in the form of levers, rockers, handlebars or arms, which are used for Arrangement and / or assembly of the support devices 110.1, 110.2, 110.3, 120.1, 120.2, 120.3 are provided and contribute to adjustability, that is to say to the adjustment of the position, for example through appropriate bearings and coupling sections or coupling elements. For reasons of clarity, such elements and components are not marked in the figures.

The first support device 110.1, which is adjustable on the main support frame 151, 152 and preferably on the second support frame 152, can preferably be configured as a chassis and thus be dimensioned and / or designed in such a way as to support the entire axle load in the transport state of the work machine 100 the work machine 100, that is to say the total axle load of the work machine 100 to be transferred to the ground B. In other words, the first support device 110.1 can be configured as the main chassis of the work machine 100 and thus for transmitting the total axle load of the work machine 100 in the transport state. The total axle load of the work machine 100 in the transport state preferably results from the total weight, that is to say the total weight force F_100 of the work machine 100 minus the operating support load F_100.3 on the towing device 130. Preferably, in this configuration of the first support device 110.1, the wheels 111 can each have tires which are formed from an elastic material, preferably from a rubber-elastic material. In the transport state, the position of the device 130 and also the first support frame 151 can be adjusted in such a way that the second support device 120.1, and of course also the further second support devices 120.2 and 120.3 on the tool units 162 and 163, have no contact with the floor B and therefore no second force component F_100.2 is transferred to the floor B.

As already described above, the towing device 130 is used to transmit the operating support load and thus a third force component F_100.3, that is to say a third supporting force F_100.3 of the operating weight F_100 of the work machine 100 via the tractor to the ground B in the transport status and/or configured in the operating state.

According to the invention it is provided that on the main support frame 151, 152 and thus on the first support frame 151 and on the second support frame 152 or in relation to the work machine 100 in 1 between the first support frame 151 and the second support frame 152 at least one actuator device 181, preferably two actuator devices 181, for adjusting a position of the pulling device 130 is/are arranged so that they can be actuated via the first support frame 151 in order to at least one force component F_100.1, F_100.2, F_100.3 of the first, second and third force components F_100.1, F_100.2, F_100.3 depending on at least one operating parameter of the work machine 100, preferably in the operating state, to be changed, preferably by the second force component F_100.2 and thus the to change the second supporting force F_100.2 and/or the third force component F_100.3 and thus the third supporting force F_100.3 in the form of the operating supporting load depending on the at least one operating parameter of the work machine 100. By adjusting the position of the pulling device 130 and therefore also of the first support frame 151, preferably relative to the second support frame 152, via the two actuator devices 181, for example, the third force component F_100.3 or the second force component F_100.2 can be increased accordingly.

In particular, when adjusting the position of the pulling device 130 towards the ground B, the third force component F_100.3 can be increased and at the same time the second force component F_100.2 can be reduced. This can be done, for example, when improved traction is required from a tractor coupled to the work machine 100. In other words, by appropriately actuating the actuator devices 181, the operating support load on the pulling device 130 can be increased, for example, by adjusting its position and/or the position of the first support frame 151. Thus, depending on the position of the pulling device 130 and/or the actuation of the actuator devices 181, the second force component F_120.1, F_120.2, F_120.3 on the second support devices 120.1, 120.2, 120.3 is changed accordingly.

As can be seen from the synopsis of the 1 and 2 results, two coupling devices 171 in the form of coupling cylinders are provided on the work machine 100, which serve to adjust the position of the first support device 110.1 in the course of adjusting the position of the second support device 120.1. The first support device 110.1 is pivotally mounted on the second support frame 152 via spaced-apart bearing devices (see 2 ).

The coupling devices 171 can also be designed in the form of rods, links, arms or levers and can be essentially constant in terms of their length or extent both in the operating state and in the transport state. In other words, the coupling devices 171 can always have a substantially constant or constant and therefore unchangeable length. However, the length or extent of the coupling devices 171 can be adjustable, for example manually adjustable.

The coupling devices 171, which connect the first support device 110.1 with the second support device 120.1, can provide kinematics in which an adjustment of the position of the pulling device 130 and/or the first support frame 151 by means of the actuator devices 181 is essentially synchronous and therefore preferably at the same time is transferred to the first support device 110.1, so that the first support device 110.1 is adjusted correspondingly to the second support device 120.1 and thus changes its position. The coupling devices 171 are preferably used to kinematically couple the first and second support devices 110.1 and 120.1 to one another.

It goes without saying that respective force introduction points or force introduction areas of the actuator devices 181 and the coupling devices 171 are arranged at a corresponding distance from one another in order to realize such an adjustment kinematics.

Thus, in the course of the actuation of the actuator devices 181, it is possible for the second force component F_100.2 and the third force component F_100.3 to change, for example, mutually, that is, that the second force component F_100.2 increases while the third force component F_100 increases. 3 reduced, with a change or adjustment of the first force component F_100.1 being accompanied at the same time.

In other words, the actuator devices 181 and the coupling devices 171 are connected and/or coupled to the respective support devices 110.1 and 120.1 in order to ultimately bring about or effect an adjustment of the position of the respective support devices 110.1 and 120.1 through appropriate actuation. Adjusting the position preferably involves, as already described, a change in the position and/or the orientation of the respective support device 110.1 and 120.1 relative to the main support frame 151, 152 and/or to the floor B.

As already described, the support devices 110.1 and 120.1 are pivotally mounted on the main support frame 151, 152, that is, on the second support frame 152. A storage device of the first support device 110.1 for pivotable storage on the second support frame 152 or the second support device 120.1 for pivotable storage on the second support frame 152 can, for example, be realized in each case by means of at least one support arm and by means of at least one articulated connection, each with a bolt.

Alternatively, it is possible, for example, for the first support device 110.1 to be pivotably mounted on the second support frame 152 via at least two links of a parallelogram guide or via at least one rocker. Furthermore, instead of the coupling devices 171, the first support device 110.1 can also be adjusted by one or more actuator devices which are arranged to be actuated on the second support frame 152, and, for example, independently of the second support device 120.1.

For a more detailed description of the present invention, reference is also made to the illustration in 2 Referenced. 2 shows the work machine 100 1 in a side view perpendicular or transverse to the direction of movement BR, with further components and elements of the work machine 100 (for example the further tool unit 162) being at least partially hidden for closer illustration. With regard to the further tool unit 162, only the actuable actuator device 182, which is arranged on the second support frame 152, is shown.

The actuator devices 181 are articulated, that is pivotally mounted, on the second support frame 152 and are supported on the rear side HS on the second support frame 152. Furthermore, the actuator devices 181 are articulated, that is pivotally mounted, on a corresponding arm of the second support device 120.1 or the first support frame 151. 2A shows in this context an enlarged section of the work machine 100 (section Z in 2 ) with the focus on the first support frame 151 and the second support device 120.1.

The actuator devices 181 of the work machine 100 can be designed to be actuated electrically, mechanically, pneumatically and/or hydraulically. The actuator devices 181 are preferably designed as double-acting, variable-length linear actuators in the form of double-acting cylinders, preferably double-acting hydraulic cylinders. The actuator devices 181 can thus be operated with an actuating force (actuating force), that is, in this embodiment, with a pressurized working medium in the form of hydraulic oil. For this purpose, the work machine 100 itself can have a power device 203 in the form of a hydraulic pump 203 (see 3 ), which supplies the actuator devices 181 with hydraulic oil by means of a hydraulic circuit and thus actuates them accordingly. Alternatively, hydraulic oil can also be provided by a hydraulic circuit of the tractor to which the work machine 100 is connected.

Furthermore, the work machine 100 finally includes a container 140 for carrying the agricultural goods. In the present exemplary embodiment of the work machine 100, the container 140 is rigidly arranged on the main support frame 151, 152.

In order to realize the adjustment of the support devices 110.1, 110.2, 110.3, 120.1, 120.2, 120.3 via the actuator devices 181, 182, in the course of carrying out the method according to the invention, an actuating device 190 is provided, among other things, for controlling and / or regulating the actuator devices 181, 182, which for actuating the actuator devices 181, 182, itself provides a corresponding actuating force, for example in the form of pressurized hydraulic oil, or arranges for the provision to be made, for example by controlling and / or regulating the force device 203 in the form of the hydraulic pump. The actuator 190 is in 2 only shown schematically. The actuation force (actuating force) is changed, for example, by pressure control and/or volume flow control using the actuation device 190 in at least one chamber of a double-acting hydraulic cylinder. It is possible for air, preferably compressed air from a compressor device, to be used as the working medium instead of hydraulic oil.

The actuating device 190 can, for example, be rigidly arranged on the main support frame 151, 152 or on the container 140 and at least one switch device, at least one valve device, at least one safety device, and / or at least one electronic arithmetic unit with at least one arithmetic core and with a memory unit for executing a Include an algorithm and/or be associated with it. It is understood that the actuating device 190 can be designed and/or configured at least partially in hardware and at least partially in software in order to actuate the actuator devices 181, 182 and thus adjust the pulling device 130 and the tool units 162 and 163 a ver division of the operating weight F_100 of the work machine 100 must be adjusted accordingly, that is, the transmission of this force and thus the load on the ground B on the pulling device 130 and in particular on the first and / or the second support devices 110.1, 110.2, 110.3, 120.1, 120.2, 120.3 in to distribute the operating status.

By means of the actuating device 190, an adjustment of the position, in particular of the pulling device 130, can be implemented manually by means of a user input and/or at least partially automatically, in order to preferably achieve the second force component F_100.2 and/or the third force component F_100.3 independently or depending on the first Adjust the force component F_100.1 and thus, for example, achieve a substantially uniform compaction of the soil B during field work by the work machine 100 on the corresponding contact surfaces of the soil B.

Furthermore, the actuating device 190 can be connected to respective sensor devices of the work machine 100 for detecting the at least one operating parameter, for example by means of a wireless and/or a wired signal communication connection. The at least one operating parameter can include at least one of the following: a detected working depth T of the work machine 100 in the operating state, preferably at least one tool unit 161, 162, 163 of the work machine 100 for processing the soil B and / or for introducing an agricultural good into the Floor B (see 2 ); a detected slip of a tractor coupled to the tractor 130 for moving the work machine 100 in the movement direction BR; and/or a detected fill level of a container 140 of the work machine 100 for carrying at least one agricultural good.

3 shows a section of a hydraulic circuit diagram of a hydraulic circuit, which is preferably used in the work machine 100 to operate the actuator devices 181. The schematically illustrated actuator devices 181 in the form of double-acting hydraulic cylinders, a safety device 200 against overload in the form of a pressure accumulator, a limiting device 201 in the form of a pressure relief valve 201, a valve device 202 in the form of a throttle valve, a power device 203 in the form of the hydraulic pump, and an interruption device 204 in the form of a check valve 204 for interrupting the hydraulic oil flow in order to keep the respective actuator device(s) 181 in a corresponding actuation state and thus ultimately the first support device 110.1, the second support device 120.1 and/or at least one further tool unit 162, 163 in one defined position, i.e. position and/or orientation, in order to achieve, among other things, a desired and/or substantially constant distribution of the operating weight F_100 of the work machine 100. An actuation of the actuator devices 181 can be changed in such a way that, depending on the length or extent and/or the position of the coupling devices 171, the second force component F_100.2 is permanently or continuously set essentially constant in the operating state.

The present invention is not limited to the embodiments described above. Rather, a large number of variants and modifications are possible, which also make use of the inventive idea and therefore fall within the scope of protection. Preferably, the present invention also claims protection for the subject matter and features of the subclaims independently of the referenced claims.

Reference symbol list

100

Agricultural working machine

110.1

first support device

110.2

another first support device

110.3

another first support device

111

wheel

120.1

second support device

120.2

further second support device

120.3

further second support device

121

wheel

130

Traction device

140

container

151

Main support frame, first support frame

152

Main support frame, second support frame

161

Tool unit

162

Tool unit

163

Tool unit

171

Coupling device

172

Coupling device

181

Actuator device

182

Actuator device

190

Actuating device

200

Security device

201

Limiting device

202

Valve device

203

Power facility

204

Interrupt facility

b

Floor

BR

Direction of movement

F_100

Operating weight force

F_100.1

first force component/support force

F_100.2

second force component/support force

F_100.3

third force component/support force

F_Z

Operating traction

FS

Front

H.S

Rear side

T

working depth

QUOTES INCLUDED IN THE DESCRIPTION

This list of documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• EP 0405377 A1 [0006]
• WO 2019/233527 A1 [0009]
• DE 102011050195 A1 [0010]

Claims (19)

Agricultural work machine (100), preferably mobile, towable agricultural work machine (100), for cultivating a soil (B) and/or for introducing an agricultural commodity into a soil (B), with a main support frame (151, 152), on which a pulling device (130) is adjustably arranged on a front side (FS), via which the work machine (100) can be pulled in a direction of movement (BR) in a transport state and in an operating state, wherein at least one first support device (110.1, 100.2, 100.3) is adjustable on the main support frame (151, 152) for transmitting at least a first force component (F_100.1) of an operating weight (F_100) of the work machine (100) to the floor (B). , wherein at least one second support device (120.1, 120.2, 120.3) is adjustable on the work machine (100) for transmitting at least a second force component (F_100.2) of the operating weight force (F_100) to the ground (B), wherein the pulling device (130) is configured to transmit a third force component (F_100.3) of the operating weight force (F_100), and wherein at least one actuator device (181, 182) for adjusting a position of the pulling device (130) is actuably arranged on the main support frame (151, 152) in order to control at least a force component (F_100.1, F_100.2, F_100.3) of the first, second and third force components (F_100.1, F_100.2, F_100.3) depending on at least one operating parameter of the work machine (100), preferably at least the second force component (F_100.2) or at least the third force component (F_100.3) to increase. Work machine (100) after Claim 1 , wherein the at least one actuator device (181, 182) is arranged to be actuable for adjusting a position of the at least one first support device (110.1, 110.2, 110.3) and/or a position of the at least one second support device (120.1, 120.2, 120.3). Work machine (100) after Claim 1 or 2 , wherein the at least one first support device (110.1) and the at least one second support device (120.1) are coupled to one another via at least one coupling device (171) of the work machine (100) in order to adjust the at least one first support device (110.1) synchronously to the at least to transmit a second support device (120.1) and/or to synchronously transmit an adjustment of the at least one second support device (120.1) to the at least one first support device (110.1). Work machine (100) after Claim 3 , wherein the at least one coupling device (171) is designed as a rod, a lever, a handlebar, a rocker arm or as a coupling cylinder, or wherein the at least one coupling device (171) is a rod, a lever, a handlebar, a rocker arm or a Coupling cylinder comprises, and / or wherein the at least one coupling device (171) is formed by a master-slave system, which is preferably configured electro-mechanically, electro-pneumatically and / or electro-hydraulically with at least one coupling cylinder. Work machine (100) according to one of the preceding claims, wherein the at least one second support device (120.1, 120.2, 120.3) on the main support frame (151, 152) or on a tool unit (161, 162) for processing the soil (B) and / or for introducing the agricultural material into the soil (B ) is arranged, wherein the tool unit (161, 162) is adjustable on the main support frame (151, 152). Work machine (100) according to one of the preceding claims, wherein on the main support frame (151, 152) there is at least one further actuator device (181, 182) and/or at least one further coupling device (171) for adjusting the position of the at least one first support device (110.1, 110.2, 110.3) and / or the position of the at least one second support device (120.1, 120.2, 120.3) is arranged to be actuable in order to respectively control the first force component (F_100.1) and the second force component (F_100.2) independently or depending on the to adjust the third force component (F_100.3). Work machine (100) according to one of the preceding claims, wherein the work machine (100) comprises an actuating device (190) for controlling and/or regulating the at least one actuator device (181, 182) or all actuator devices (181, 182) of the work machine (100), preferably by means of an actuating force in each case, in order to Depending on the at least one operating parameter, to increase at least the third force component (F_100.3) and to reduce the first force component (F_100.1) and the second force component (F_100.2), or to reduce at least the third force component (F_100.3) and to increase the second force component (F_100.2), preferably by manual operating input via an input device and/or at least partially automated. Work machine (100) according to one of the preceding claims, wherein the at least one operating parameter comprises at least one of the following: • a detected working depth (T) of the work machine (100) in the operating state, preferably at least one tool unit (161, 162, 163) of the work machine (100) to cultivate the soil (B) and/or to introduce an agricultural commodity into the soil (B); • a detected slip of a tractor, which is coupled to the tractor (130) for moving the work machine (100) in the direction of movement (BR); and/or • a detected fill level of a container (140) of the work machine (100) for carrying at least one agricultural good, wherein preferably the container (140) is rigidly arranged on the main support frame (151, 152). Work machine (100) according to one of the preceding claims, wherein the at least one first support device (110.1, 110.2, 110.3) and/or the at least one second support device (120.1, 120.2, 120.3) is pivotally mounted relative to the main support frame (151, 152), preferably perpendicular to the direction of movement (BR), and /or wherein the at least one first support device (110.1, 110.2, 110.3) and the at least one second support device (120.1, 120.2, 120.3) are arranged spaced apart from one another in a view in the direction of movement (BR), wherein preferably the at least one second support device (120.1, 120.2, 120.3) is arranged between the pulling device (130) and the at least one first support device (110.1, 110.2, 110.3), and/or wherein the at least one first support device (110.1, 110.2, 110.3) is arranged on a rear side (HS) of the work machine (100), and/or wherein in a view in the direction of movement (BR) at least one tool unit (161, 162, 163) for processing the soil (B) and / or introducing the agricultural material into the soil (B) between the at least one first support device (110.1, 110.2 , 110.3) and the at least one second support device (120.1, 120.2, 120.3) is arranged. Work machine (100) according to one of the preceding claims, wherein the at least one first support device (110) is configured as a chassis in order to transfer a total axle load of the work machine (100) to the ground (B) in the transport state, wherein preferably the at least one first support device (110.1) comprises at least one axle section for rotatably supporting at least one wheel (111), and wherein preferably the at least one wheel (111) has a tire which is made of an elastic material, preferably of a rubber-elastic material, is trained. Work machine (100) according to one of the preceding claims, wherein the main support frame (151, 152) comprises a first support frame (151) and a second support frame (152), the first support frame (151) being adjustable on the second support frame (152), wherein the pulling device (130) is arranged on the first support frame (151) and the at least one first support device (110.1) on the second support frame (152), wherein the at least one actuator device (181, 182) for adjusting a position of the first support frame (151) relative to the second support frame (152) is arranged such that it can be actuated between the first support frame (151) and the second support frame (152). Work machine (100) after Claim 11 , wherein the at least one second support device (120.1, 120.2, 120.3) on the first support frame (151) or on the second support frame (152) or on at least one tool unit (161, 162) for processing the soil (B) and / or for Introduction of the agricultural material into the ground (B) is arranged, the at least one tool unit (161, 162) being adjustable on the second support frame (152). Work machine (100) after Claim 11 or 12 , wherein between the first support frame (151) and the second support frame (152) at least one stop is arranged on the first support frame (151) or on the second support frame (152) in order to preferably pivot movements of the first support frame (110) relative to the second support frame (152), preferably in the operating state, and / or wherein the first support frame (151) is designed as a drawbar or comprises a drawbar. Work machine (100) according to one of the preceding claims, wherein the work machine (100) has a container (140) for carrying an agricultural good, the container (140), preferably in a view in the direction of movement (BR), being attached to the main support frame ( 151, 152) between the at least one first support device (110.1, 110.2, 110.3) and the at least one second support device (120.1, 120.2, 120.3) or between the at least one first support device (110.1, 110.2, 110.3) and the pulling device (130) is arranged. Work machine (100) according to one of the preceding claims, wherein the work machine (100) comprises at least one further tool unit (162, 163) for processing the soil (B) and/or for introducing the agricultural goods into the soil (B), which is preferably attached to the main support frame (151, 152). a first support frame (151) or on a second support frame (152) of the main support frame (151, 152), is adjustable, wherein the at least one further tool unit (162, 163) includes at least one further first support device (110.2, 110.3) for transmitting at least the first force component (F_100.1) of the operating weight (F_100) of the work machine (100) to the ground (B). which comprises at least one first support device (110.1) in the operating state, and/or wherein the at least one further tool unit (162, 163) includes at least one further second support device (120.2, 120.3) for transmitting at least the second force component (F_100.2) of the operating weight (F_100) of the work machine (100) to the ground (B). which comprises at least one second support device (120.1) in the operating state. Work machine (100) after Claim 15 , wherein at least one actuator device (182) for adjusting a position of the at least one further tool unit (162, 163) is actuably arranged on the main support frame (151, 152), preferably by a uniform and / or constant working depth (T) for processing the soil (B) and/or to set a uniform and/or constant working depth (T) for introducing the agricultural goods into the ground (B). Work machine (100) according to one of the preceding claims, wherein the at least one first support device (110.1, 110.2, 110.3) and / or the at least one second support device (120.1, 120.2, 120.3) each as at least one support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a Double profile ring packer roller, a tire packer roller, and / or designed as a packer profile roller, or wherein the at least one first support device (110.1, 110.2, 110.3) and/or the at least one second support device (120.1, 120.2, 120.3) each have at least one support wheel, a tooth packer roller, a disc packer roller, a double disc packer roller, a double profile ring -Packer roller, a tire packer roller, and / or a packer profile roller. Work machine (100) according to one of the preceding claims, wherein the at least one actuator device (181, 182) or all actuator devices (181, 182) of the work machine (100) are designed to be electrically, mechanically, pneumatically and/or hydraulically actuated, and/or wherein the at least one actuator device (181, 182) or all actuator devices (181, 182) of the work machine (100) each include a safety device (200), preferably against overload, or are each connected to a safety device (200), and / or wherein the at least one actuator device (181, 182) or all actuator devices (181, 182) of the work machine (100) each comprise a limiting device (201) and/or a valve device (202) or each with a limiting device (201) and/or one Valve device (202) are connected. Method for setting a distribution of the operating weight force (F_100) in an agricultural machine (100) for cultivating a soil (B) and/or for introducing an agricultural commodity into a soil (B), wherein the work machine (100) is preferably configured according to one of the preceding claims, wherein at least one actuator device (181, 182) is actuated on the main support frame (151, 152) for adjusting a position of the pulling device (130) in order to at least a force component (F_100.1, F_100.2, F_100.3) of the first, second and third force component (F_100.1, F_100.2, F_100.3) depending on at least one operating parameter of the work machine (100), preferably at least the second force component (F_100.2) or at least the third force component (F_100.3). increase.

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