RU2772843C2 - Trailed agricultural working mechanism - Google Patents

Abstract

FIELD: agriculture.

SUBSTANCE: trailed agricultural working mechanism, primarily a tillage and/or sowing tool, with a central frame, having a running gear and a traction device, to which a rotary frame and side frames extending to sides of it are attached in the rear area. Elements of setting the passing depth and sowing elements, passing or extending at regular intervals from each other, are attached to side frames along the entire width. The rotary frame and side frames extending to sides of it, by means of at least one executive body, are made with the possibility of turning upwards relatively to the central frame around the axis of rotation passing across the direction of movement. Side frames are made with the possibility of turning forward or backward into a position passing in the direction of movement, respectively, around the hinge axis located in their end area, which in an upturned position of the rotary frame passes vertically. In a working position and/or in a turning position, the rotary frame is turned or rotated by means of at least one actuator in such a way that the setting of the passing depth and the support of the working mechanism occur exclusively by means of elements of setting the passing depth, and that in a transport position, the rotary frame is turned or rotated by means of at least one actuator in such a way that the support of the working mechanism occurs only through the undercarriage.

EFFECT: creation of permanent conditions for tillage and/or sowing is ensured along the entire width of a tool grip, as well as simplification of the design of the agricultural working mechanism.

11 cl, 4 dwg

Description

The present invention relates to a trailed agricultural working mechanism according to the features of the restrictive part of paragraph 1 of the claims.

Such a trailed agricultural working mechanism is already known, for example, from EP 1935224 B1. To transfer this known operating mechanism from the working position to the transport position, it is provided that side frames extending laterally from it are attached to the central frame, and these side frames first turn around a horizontal axis extending transversely to the direction of movement of the axis by about 90 ° upwards, after which the side frames the frames are then rotated about a vertical axis in the rotated position about 90° forward to a position parallel to the direction of travel. In order to obtain a constant setting of the working depth of the seeding elements attached to the side frames, the side frames have for this purpose in their outer region a setting element for setting the working depth in the form of a setting roller. Both during the working position and in the turning position, the side frames are respectively rotated in such a way that the working mechanism is supported by the wheels for setting the depth of travel and the wheels associated with the central frame. Since, however, the depth setting wheels and the travel wheels do not extend over the entire working width of the agricultural working mechanism, correspondingly different working conditions are created for the sowing elements located behind them, which can adversely affect the result of the work. Furthermore, the travel depth setting wheels require correspondingly separate hydraulic cylinders to enable additional rotation of the travel depth setting wheels between the working position and the transport position, which in turn is correspondingly costly and laborious.

DE 199 43 277 A1 discloses a combination seed drill with a support frame attached to a drawbar by means of a connecting frame. The combination planter contains a hopper for on-board transportation and resupply of the spreading materials. Attached to the base frame is a sowing device with coulters and rollers for setting the depth of travel. The rollers for setting the depth of travel can be formed primarily by adjacent and mutually offset press wheels that can be adjusted in height. In the direction of travel, two coulters are respectively provided behind the press wheels, so that they make sowing furrows in the soil compacted by the press wheels, into which the material metered by the dosing device is brought from the hopper through the seed tube into the planting furrows. While in the direction of travel a tillage tool in the form of grading teeth is located in front of the seed drill, a harrow is provided in the direction of travel behind the seed drill.

In order to lift the seed drill out of the ground when turning at the headland or to be able to transport it on streets and roads, the drawbar is lifted by means of a three-point power lift. At the same time, the running wheels of the running gear are lowered relative to the frame so that the seeder is lifted off the ground. As a result, the tillage tools, rollers, coulters and harrows are released from the soil or move to the raised position. However, such a solution has the disadvantage that even on the headland, the carrier frame is supported by the running gear, as a result of which the turning process of the combined seed drill is significantly limited.

EP 1529430 A1 discloses another agricultural tillage implement. The tillage unit comprises a towing device and a central part, which is rotatably supported on the towing device bearings essentially around a horizontal axis. The central part is located so that it rotates essentially 90 degrees between the working position and the transport position. In addition, the soil-cultivating implement comprises at least one outer area supported on bearings of the central part with the possibility of rotation around an axis, which is essentially horizontal in the working position and which is essentially vertical in the transport position. Several tillage units are associated with the outer area, at least one of the tillage units is movable between a working position and a transport position.

The invention is based on the task of creating a trailed agricultural working mechanism, in particular a soil-cultivating and/or sowing implement, with a large working width, in which conditions that remain largely or approximately constant are created over the entire working width, which means, first of all, the working conditions soil and/or sowing.

This problem according to the invention is solved by means of an object of the invention with the features of claim 1 of the claims, further preferred variants and improved variants of the invention being indicated in the dependent claims.

To solve these problems, the invention proposes a trailed agricultural working mechanism, in particular a soil-cultivating and/or sowing tool, which is used for agricultural tillage and/or sowing, or for introducing solid and/or liquid spreading materials. The working mechanism comprises a central frame for carrying the components present on the working mechanism, such as, for example, a hopper for transportation on board and preparation of the corresponding spreading material (fertilizers, seeds, etc.), and also attached to the front end of the central frame (looking in the direction of travel) tow hitch for connection to an agricultural tractor. For transporting the operating mechanism, it also has a running gear, which, for example, can consist of two running wheels or, if necessary, also four running wheels (in a tandem or twin axle configuration), or of crawler chassis, or the like.

In order to be able to realize a large working width of the operating mechanism, a pivoting frame is located in the rear region of the central frame, to which side frames extending laterally from it are attached. In addition, the side frames are designed in such a way that in the working position they cover or cover the entire working width of the agricultural working mechanism. In addition, the swivel frame and the side frames extending laterally from it relative to the central frame are made swivelable by means of at least one motorized actuating element upwards or approximately 90° around an axis of rotation extending transverse to the direction of movement. In addition, the side frames are swivelable by means of, for example, a linear drive, forwards or backwards into a position lying in the direction of travel, respectively, about a pivot axis located approximately in their end region, which runs vertically in the upwardly turned position of the swivel frame. First of all, the side frames are rotated approximately 90° or 90° forwards, so that in this folded-up position of rotation, together with the depth-setting elements attached to the side frame and the sowing elements, they pass respectively to the left and right next to the hopper frame and, in addition, preferably above the running gear.

In order to create equal conditions for appropriate soil cultivation and/or distribution of the spreading material over the entire working width of the working mechanism in comparison with the prior art, it is provided that on the side frames, in turn, over the entire width of these side frames there are spaced at regular intervals from each other elements for setting the depth of travel and sowing elements.

To further improve the level playing field, it is also provided that in the working position and in the swivel position or in the raised position, the swing frame is rotated by means of an actuator in such a way that the setting of the stroke depth and the support of the operating mechanism takes place exclusively by means of the stroke depth setting elements, and also, that in the transport position the swivel frame is rotated by means of the actuator in such a way that the working mechanism is supported only by means of the running gear. As a result of the support achieved by this and the setting of the stroke depth over the entire working width during field work, a much better distribution of the weight and load of the operating mechanism can be achieved. Concretely, this can mean that the running gear or the running wheels of the running gear are/are in contact with the ground only during the transport position, while, on the contrary, the running gear or running wheels of the running gear in the working position and in the turning position are lifted/ raised and not in contact with the soil surface. In this way, compared to the prior art solutions, improved turning parameters can be achieved. This is primarily achieved by the fact that in the case of a headland, the turning takes place on the entire shaft of the press roller, while according to the prior art it is necessary that, for example, the axle of the running wheels of the running gear lies in the same plane with the axle of the front supporting wheels, so as not to create unwanted ruts, longitudinal grooves or similar areas with different height levels and/or very different soil compaction.

Therefore, with the help of at least one actuating member, the slewing frame is rotated around an axis of rotation oriented transversely to the direction of travel in such a way that in the working position both the depth setting elements and the sowing elements are in contact with the soil surface, the setting of the depth setting and the support of the working mechanism is therefore carried out by means of the elements for setting the depth of the stroke, while the running wheels or the running gear in this position do not/have no contact with the soil.

In the raised position, which, for example, is required on the headland, on the contrary, the swing frame is rotated by means of at least one actuator in such a way that only the stroke depth setting elements are in contact with the soil surface and that, consequently, the operating mechanism is supported only by means of the travel depth setting elements, and the travel wheels or the travel gear do not/have no contact with the soil in this position either.

When transferring the operating mechanism from the working position or the turning position to the transport position, the swing frame is rotated by means of at least one actuating element in such a way that only the undercarriage or its running wheels or tracked chassis are in contact with the soil surface.

The at least one motorized actuator can be primarily fixed between the central frame and the swing frame and be hydraulically and/or pneumatically and/or electrically driven. First of all, at least one executive body can be made in the form of a cylinder, a linear actuator or a screw actuator. Hydraulic or pneumatic actuators can also be used, which are controlled by an electrical control system or a motorized valve.

With the help of the actuator, the swivel frame is rotated around an axis of rotation oriented transversely to the direction of travel in such a way that, in the working position, both the depth setting elements and the sowing elements located behind them are in contact with the soil surface, i.e. the setting depth setting and the worker support The mechanism can therefore be carried out by means of elements for setting the depth of the stroke, while the running wheels do not have contact with the soil. In addition, it can be achieved by this that in the raised swivel position, only the stroke depth setting elements are in contact with the soil surface, so that consequently the operating mechanism is supported only by the stroke depth setting elements.

In addition, it can be achieved that in the transport position, only the running wheels of the running gear are in contact with the soil, that is, the support of the operating mechanism can only take place by means of the running wheels or by means of the running gear.

Due to the fact that the rotation of the swing frame occurs only with the help of at least one executive body and, in addition, no other executive bodies are required, in addition, a significantly simpler design of the working mechanism is obtained in comparison with the trailed agricultural working machines known from the prior art. mechanisms.

In order for the swing frame to be rotated to the correct position by means of at least one actuator, for example, position sensors or angle sensors can be attached to the operating mechanism, which respectively determine the position between the swing frame and the central frame. Also, position sensors can be attached to at least one executive body, with the help of which the corresponding position or length, or the path of movement of the executive body is determined. Rotary potentiometers or other measuring instruments are also acceptable and suitable. Therefore, the position or angle values determined by means of the measuring means are then processed by a suitable control system and at least one actuator is respectively controlled or adjusted. In this case, it can primarily be an electronic control system which processes the received position signals from the sensors and outputs corresponding control signals from them for the actuators in order to reposition the rotary parts.

It should be noted that the concept of "management" means a generic concept for any kind of influence on at least one executive body, and the concept of "management" may also contain "regulation" (in a narrower sense of the word), since regulation is management with feedback of one of the controlled parameters. Management, therefore, can also be performed as a regulator, primarily for the regulation of the executive body. In addition, the control may be performed as an electric, or hydraulic, or pneumatic, or electro-pneumatic, or electro-hydraulic control system. In addition, the control system may also contain a control program, which, for example, is downloaded to the control computer.

Any packer rollers or field rollers known from the prior art can be used as elements for adjusting the depth of travel, and in particular a packer roller formed from wheels is used or can be used. Packers made of steel rings, plastic rings, rubber rings or the like are also acceptable. The press rollers or the field rollers can optionally be made in one piece or in two pieces, respectively, and can extend over the entire length or the width of the side frames, respectively.

In order to use the smallest possible number of actuators, the elements for setting the depth of travel can also be fixedly connected to the corresponding side frame, "fixed" here means that they are made without the possibility of adjusting their height. However, they can be adjustable relative to the side frame by means of a hinge in its height.

In another variant of the agricultural working mechanism according to the invention, it can be provided that the one-piece or composite press roller and/or field roller that form it, the elements for setting the depth of travel, are formed by wheels located with their axes of rotation in a straight line and, accordingly, at a given distance from each other and mounted on bearings with the possibility of rotation. Such an embodiment has the particular advantage of very evenly executable conditions in the soil for several seed drills following these packers or field rollers, which, due to the fact that they all follow the wheels together, fall into correspondingly equal conditions with respect to the soil structure (loosening or light pre-compacting). In addition, it is advantageous if at least several wheels, in particular each wheel, of the packer or field roller is followed by at least one seeding element. Preferably, however, at least several wheels, in particular each wheel, of the press roller or field roller are respectively followed by two seeding elements. Since, in this preferred embodiment, the two seeding units respectively follow the wheel of the press roller or the field roller, and these two seed units or seed units are furthermore respectively aligned with or follow the left or right edge area of the wheel, in general, optimized conditions are obtained. for all seeding units or seeding devices, which are moreover approximately equal across the entire width of the machine, since the lateral edge rolling regions of each wheel due to tire deformation and wheel collapse are quite accurately predictable due to tire elasticity and air pressure in the wheels, also in terms of pressure exerted on soil and compaction effect, which benefits predictable and controlled soil compaction for downstream seeders or seed units. When referring to wheels in this connection, it usually refers to complete running wheels, respectively consisting of steel wheels, which, in turn, respectively comprise a rim and an outer edge of the wheel, and pneumatic tires fitted on the rims.

All kinds of coulters known in agriculture, tine rippers or the like can be used as sowing elements. In addition, so-called precision seeding coulters, double disc coulters or single disc coulters can be used. Tooth rippers or coulters with an obtuse angle of entry are also acceptable. In turn, they can also be fixedly connected to the side frame or adjustable in height. They can also be connected, for example, by means of a parallelogram to the side frame.

According to one embodiment, the elements for setting the depth of travel in relation to the side frame can be made stationary, primarily without the possibility of height adjustment, while the sowing elements, on the contrary, for example, by means of a hinge, are located in relation to the side frame with the possibility of height adjustment. The height adjustment of the sowing elements can, for example, take place by means of adjusting elements made in the form of hydraulic cylinders.

As an alternative, in addition to the sowing elements, the depth setting wheels can also be made height-adjustable relative to the side frame. Also, optionally, only the wheels for setting the depth of travel can be made with respect to the side frame with the possibility of height adjustment, while the coulters are made fixed or without the possibility of height adjustment.

The arrangement of the stroke depth setting elements and the seeding elements is primarily such that the stroke depth setting elements are located in front of the seeding elements. In addition, the sowing element can, for example, follow the packer ring or the packer roller, respectively. It can also be provided that, when the elements for setting the depth of travel are wheels, each wheel is followed by two seeding elements, which are primarily driven in the outer region of the furrows created by the wheels, due to such an arrangement, the number of wheels corresponds, for example, to half the number of seeding elements.

According to one embodiment, the elements for setting the depth of travel can be located primarily in the direction of travel in front of the side frame, and the sowing elements in the direction of travel behind it. This can mean that a seeding element is associated with each element for setting the depth of travel, especially in the direction of travel behind. Due to this correlation across the entire working width, equal seeding conditions can be created on all coulters.

In order to be able to position both the stroke depth setting elements and the sowing elements across the entire working width and also to obtain a working mechanism with compact transport dimensions, the side frames and the stroke depth setting elements located on them and the sowing elements are located in the transport position, preferably above the chassis. parts, and in order to achieve this, the diameters of the undercarriage or the running wheels or caterpillar chassis, as well as the lengths of the sowing elements and their distance from each other are calculated or can be calculated in such a way that they, in one above the other transport position, have a dimension that is less or about four meters.

It should be noted that instead of sowing elements, other soil-cultivating tools, such as disc organs or claw organs, can also be used, which, however, also fall under the general concept.

Therefore, in addition to the central frame in its front region and, in turn, respectively transverse to the direction of movement at regular intervals from each other, there are several track eradicating elements in the form of loosening discs. The purpose of these discs can be to remove any traces left by the tractor in the soil surface again and thus further loosen the reconsolidated arable land, in order to thus again create as equal conditions as possible for the following seed units. In addition to the loosening discs, other track eradicators, such as claws or the like, are also acceptable. In addition, the track eradicators can be attached in a height-adjustable manner, for example by means of an adjusting element, to the central frame or to a single frame element.

Additionally, distribution towers can be attached to the side frame, by means of which the spreading material is distributed to several seed units.

Further embodiments of the invention and their advantages are explained in more detail with the help of the attached figures. The ratios of the sizes of individual elements from each other in the figures do not always correspond to the real ratios of sizes, since some forms are shown in a simplified way, while other forms are enlarged relative to other elements for better clarity. This is shown in:

fig. 1 is a perspective view of an embodiment of a trailed agricultural working mechanism defined by the invention in working position,

fig. 2 is a side view of the trailed agricultural implement according to FIG. 1 in working position and with travel wheel not shown,

fig. 3 is a side view of the trailed agricultural implement according to FIG. 1 and FIG. 2 with the side frame turned or in the turn position, and

fig. 4 is a side view of the trailed agricultural implement according to FIG. 1, fig. 2 and FIG. 3 in transport position and with running gear, depth setting element, side frame and seeding elements arranged one above the other.

For identical and identically functioning elements in FIG. 1-4, respectively, identical reference designations apply. In the following, for better visibility, only those reference symbols are shown in the individual figures that are necessary to describe the respective figure. The embodiments shown are merely examples of how the agricultural working mechanism according to the invention can be made and are not definitive indications.

Trailed agricultural working mechanism 10 according to FIG. 1-4 is made in the form of a working mechanism with a large working width. The operating mechanism 10 has a central frame 12 which has on its front side a towing device 14 or a towing eye for hitching a tow hitch of a tractor not shown here. On the rear side, the central frame 12 has a ground-rolling or supporting undercarriage 16 in the form of running wheels 18; tracked chassis.

As seen in FIG. 2-4, the running wheels 18 or running gear 16 are in contact with the soil surface 20 only during the transport position, while in the working or turning position there is no contact with the soil surface 20 (cf. figures 2 and 3).

On the rear side of the central frame 12, by means of an axis 24 of rotation oriented transversely to the direction of movement 22, a swivel frame 26 is located, and, in turn, on the sides of the swivel frame 26 side frames 28 extending transversely to the direction of movement 22 are located. On the side frames 28 across the entire width through Depth setting elements 30 are arranged at regular intervals from each other in the form of depth setting wheels or in the form of a depth setting roller and seeding elements 32, wherein the depth setting elements 30 are located in front and the seeding elements 32 are located behind the side frame 28. In addition In addition, the elements 30 for setting the depth of the stroke are located relative to the side frame 28 without the possibility of height adjustment, while the sowing elements 32 are located relative to the side frame 28 with the possibility of height adjustment by means of a hinge. The height adjustment takes place by means of adjusting bodies 34 designed as hydraulic cylinders; optionally, also or only the elements 30 for setting the stroke depth relative to the side frame 28 can be attached with the possibility of height adjustment.

The two side frames 28 are respectively located above the swing frame 26 by rotation axes 24 on the central frame 12, the rotation axes 24 being respectively in the front region of the side frames 28 and extending horizontally and transversely to the direction of movement 22. Around these axes of rotation 24 the swing frame or the side frames of the one shown in FIG. 1-3 working positions can be translated approximately 90° upwards in shown in figure 4 transport position.

Further, the side frames 28 are fixed to the central frame 12 by means of a pivoting frame 26 by means of hinges 36, the hinge pins 38 of which, in the working position in the direction of movement 22 and in a position rotated 90° upwards, passing vertically and/or perpendicularly, are fixed to the central frame 12. Due to this, the side the frames 28 can respectively be rotated around a hinge pin 38 located approximately in their end region, which, in the position of the side frames 28 rotated 90° upwards, extends vertically, 90° forwards, into a position lying parallel to the direction of movement 22 . Instead of pivoting forward, it is also possible to pivot the side frames 28 backwards. The rotation of the side frame 28 occurs by means of a linear movement control element made as a hydraulic cylinder. Seeding elements 32 by means of adjusting bodies 34 can also be translated into the position required for transportation.

In addition to the central frame 12 in its front region and, in turn, respectively transverse to the direction of movement 22 at regular intervals from each other, there are several track erasing elements 42 in the form of loosening discs. The purpose of these discs is to remove any traces left by the tractor on the soil surface again and thus further loosen the arable land subjected to reconsolidation, in order to again create as equal conditions as possible for the following sowing units 32. In addition to loosening discs, other track loosening elements 42, such as clawed organs or the like. Furthermore, the track eradicators 42 can in turn be attached in a height-adjustable manner, for example by means of an adjuster, to the central frame 12 or to a separate frame element.

In addition, a hopper 44 can be attached to the central frame 12 for transport on board and preparation of the appropriate spreading material (fertilizer, seed, etc.), and in the transport position it is located between the side frames 28 (cf. Fig. 4) . In addition, distribution towers 46 are also attached to the side frame, by means of which the spreading material is distributed among several seeding elements.

Rotation of the swivel frame 26 or side frames 28 occurs by means of at least one motorized actuator 48 associated with it/them, which, firstly, is attached to the central frame 12, and secondly, to the swivel frame 26. In the variant Implementation of the executive body is made in the form of a hydraulic cylinder, however, it is also possible to use elements with a pneumatic and/or electric drive. First of all, linear motion controls, screw drives or the like can be used as actuators 48 or actuators. Hydraulic or pneumatic actuators 48 can also be used, which are controlled by an electrical control system or a motorized valve.

With the help of the actuator 48, the swivel frame is rotated around the axis of rotation 24 oriented transversely to the direction of travel in such a way that, in the working position, both the stroke depth setting elements 30 and the sowing elements 32 located behind them are in contact with the soil surface 20, setting the stroke depth and support take place by means of elements 30 setting the depth of the stroke (cf. Fig. 2), while the running wheels 18 have no contact with the soil. In addition, it can be achieved by this that in the raised turning position only the stroke depth setting elements 30 are in contact with the soil surface, thus the support takes place only by the stroke depth setting elements 30 (cf. FIG. 3).

In addition, this ensures that in the transport position only the running wheels 18 of the running gear 16 are in contact with the soil (cf. Fig. 4), so that the operating mechanism is supported only by the running wheels 18 or by the running gear 16.

So that, despite the large working width of the working mechanism 10 and despite being located across the entire working width, the elements 30 for setting the depth of the stroke and the sowing elements 32 still do not exceed the maximum permissible transport height of four meters, the diameters of the running wheels 18 or the running gear , as well as the diameters of the elements 30 for setting the depth of travel and the length of the sowing elements 32, as well as their distance from each other, are coordinated in such a way that they have a dimension that is less than or equal to four meters in the transport position located one above the other.

The invention has been described with reference to a preferred embodiment. However, one skilled in the art may assume that modifications or changes to the invention can be made without departing from the protection of the following claims.

LIST OF REFERENCES

10 working mechanism, agricultural working mechanism

12 central frame

14 drawbar

16 running gear

18 running wheel

20 soil surface

22 direction of travel

24 rotation axis

26 swing frame

28 side frame

30 stroke depth setting element

32 seed element

34 regulatory body

36 hinge

38 articulated axle

40 linear motion control

42 track eradicator

44 bunker

46 distribution tower

48 means of regulation

Claims (12)

1. Trailed agricultural working mechanism (10), primarily a soil-cultivating and / or sowing implement, with a running gear (16) and a towing device (14) with a central frame (12), to which a swivel frame (26) is attached in the rear region ) and side frames (28) extending on its sides, moreover, elements (30) for setting the depth of travel and sowing elements (32) passing or extending at regular intervals from each other are attached to the side frames (28) over the entire width, and the rotary frame (26) and the side frames (28) extending laterally from it, by means of at least one executive body (48), are made with the possibility of turning upward relative to the central frame (12) around the rotation axis (24) passing transverse to the direction (22) of movement, and moreover, the side frames (28) are made with the possibility of turning forward or backward into a position passing in the direction (22) of movement, respectively, around a hinge axis (3 8) located in their end area, which in the upturned position of the swivel frame (26) runs vertically, characterized in that in the working position and/or in the turning position, the swivel frame (26) is rotated by means of at least one actuator or is swivelable in such a way that the setting of the stroke depth and the support of the working mechanism (10) occur exclusively by means of the elements (30 ) setting the stroke depth, and that in the transport position the swivel frame (26) is rotated by at least one actuator (48) or is swivelable in such a way that the working mechanism (10) is supported only through the running gear (16). 2. An operating mechanism according to claim 1, characterized in that the elements (30) for setting the depth of travel and the sowing elements (32) are respectively provided only on the side frames (28). 3. An operating mechanism according to claim 1, characterized in that the elements (30) for adjusting the depth of travel according to their respective heights are located without the possibility of adjustment, primarily fixed, relative to the side frame (28). 4. Operating mechanism according to one of the preceding claims, characterized in that the elements (30) for setting the depth of travel are made in the form of a press roller and/or a field roller, which extend in one piece or composite along the entire length of the side frame (28). 5. The working mechanism according to claim 4, which forms elements (30) for setting the depth of travel, the press roller and / or field roller of which are formed by wheels located with their axes of rotation in one straight line and, accordingly, with a given distance from each other and mounted on bearings with the possibility rotation. 6. The working mechanism according to claim 5, in which at least one seed element (32) follows at least some of the wheels, in particular each wheel of the press roller or field roller with, first of all, pneumatic tires put on them. 7. An operating mechanism according to claim 5 or 6, wherein at least some of the wheels, in particular each wheel, of the packer or field roller are followed by two seeding elements (32). 8. Operating mechanism according to claim 7, in which two seeding elements (32) which follow respectively the wheel of the press roller or the field roller, respectively in the left or right edge region of the wheel are associated with, first of all, a pneumatic tire put on it or they follow her. 9. The working mechanism according to one of paragraphs. 1-8, characterized in that the diameters of the undercarriage (18), as well as the diameters of the elements (30) for setting the depth of the stroke, as well as the lengths of the sowing elements (32), as well as their distance from each other, are calculated in such a way that they are folded and located one above the other transport position have a dimension that does not exceed a length of four meters. 10. The working mechanism according to one of paragraphs. 1-9, characterized in that for determining the existing position of the swing frame (26), respectively, measuring instruments are provided. 11. Operating mechanism according to claim 10, characterized in that at least one actuator (48) is controlled based on the actual position of rotation of the swing frame (26).

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