EP3243958A1 - Method for coupling a machine frame of a soil working machine with a working device, soil working device and connecting device for the method - Google Patents

Abstract

A method for coupling a machine frame (12) of a tillage machine (10) with a working device (28) between the machine frame (12) and a substrate (U) comprises the following steps: Arranging the machine frame (12) and the working device (28) between the machine frame (12) and the ground (U), - Aligning receiving portion (42) and working means (28) relative to each other such that fixing formations (56, 60) of the working device (28) with counter-fixing formations (58, 62) of the machine frame (12) are aligned along a distance direction, Approximating commit formations (56, 60) and opposing formations (58, 62) to each other and - Ready set the working device (28) on the receiving portion (42). According to the invention, the alignment step comprises the following substeps: - Connecting the machine frame (12) and the working means (28) with each other by means of a connecting device (76), such that the working means (28) under the influence of their weight relative to the machine frame (12) parallel to the direction of gravity (g) and orthogonal to this movable is, after that - Leaving the working device (28) on the machine frame (12) and after - supporting the working equipment (28).

Description

• Anordnen des Maschinenrahmens und der Arbeitseinrichtung relativ zueinander derart, dass sich die Arbeitseinrichtung zwischen dem Maschinenrahmen und dem Untergrund befindet,
• Ausrichten von Aufnahmeabschnitt und Arbeitseinrichtung relativ zueinander derart, dass Festlegeformationen der Arbeitseinrichtung mit den Festlegeformationen zugeordneten und zur betriebsbereiten Festlegung der Arbeitseinrichtung am Aufnahmeabschnitt zusammenwirkenden Gegenfestlegeformationen des Aufnahmeabschnitts längs einer Abstandsrichtung mit einer zum Untergrund orthogonalen Richtungskomponente fluchten,
• Annähern von Festlegeformationen und Gegenfestlegeformationen aneinander und
• Betriebsbereites Festlegen der Arbeitseinrichtung am Aufnahmeabschnitt.

The present invention relates to a method for coupling a machine frame of a tillage machine, such as a road milling machine, stabilizer or recycler, with a working device between a receiving device receiving the working frame of the machine frame and a substrate on which the tillage machine stands, the method comprising the following steps:

• Arranging the machine frame and the working device relative to one another such that the working device is located between the machine frame and the ground,
• Aligning the receiving section and working device relative to one another such that fixing formations of the working device are associated with the fixing formations and cooperating for operational definition of the working device on the receiving portion Gegenfestlegeformationen the receiving portion along a distance direction with a direction orthogonal to the ground direction component,
• Approaching formation formations and opposing formations to each other and
• Ready to set the work equipment on the receiving section.

Generic methods are known, for example from the US 2016/0040372 A1 , of the DE 10 2013 005 594 A1 , of the DE 10 2014 011 856 A1 or from the DE 10 2011 018 222 B4 ,

The generic method generally describes a procedure for the replacement of a working device of a tillage machine to a working device pair with the machine frame of the tillage machine ready for use.

In the cited documents different operations are proposed as the machine frame and the working device, represented by a milling box with a rotatably received therein milling drum, relative to each other can be moved so that the working device is located between the machine frame and the ground. The pamphlets US 2016/0040372 A1 and DE 10 2013 005 594 A1 suggest for this purpose to adjust drives a tillage machine with their direction in the machine frame transverse direction and then move the machine frame with the drives sideways in machine frame transverse direction via a provided working device. The pamphlets DE 10 2014 011 856 A1 and DE 10 2011 018 222 B4 On the other hand, they suggest a kinematic reversal of the aforementioned sequence, ie a movement of the working device in the machine frame transverse direction under a provided machine frame. For this purpose, an additional maneuvering device is necessary because the working device taken by itself is usually not equipped to move relative to the ground.

All proposed methods have in common that the receiving portion of the machine frame and the working device relative to each other must be aligned so precisely that the fixing formations and the counter-fixing formations can be brought into mutual engagement with each other after approximation.

A disadvantage of the known method is the high cost, which is associated with the alignment of working device and receiving portion of the machine frame, since both the machine frame and the working device each have a mass of over a ton and thus oppose a correspondingly large resistance to an alignment movement.

In order to facilitate the alignment of the working device and the machine frame, the use of centering formations on the working device and machine frame is sometimes thought of in the prior art, so that the approach of the Fixing formations and the Gegenfestlegeformationen to each other an automatic centering can be done by a physical positive guidance by means of a centering engagement of the Zentrierformationen also prepared during the approach. However, this physical forced guidance in alignment means a significant mechanical load on the centering formations involved, since the usually lighter, but still a mass of up to several tons having working means must be placed on the centering in an alignment movement.

It is therefore an object of the present invention to provide a technical teaching that allows a comparison with the prior art simplified alignment of receiving portion and working device.

• Verbinden des Maschinenrahmens und der Arbeitseinrichtung miteinander mittels einer Verbindungsvorrichtung, welche einen zur Kopplung mit dem Maschinenrahmen ausgebildeten Rahmen-Kopplungsabschnitt und einen mit Distanz vom Rahmen-Kopplungsabschnitt angeordneten und zur Kopplung mit der Arbeitseinrichtung ausgebildeten Einrichtungs-Kopplungsabschnitt aufweist, derart, dass die Arbeitseinrichtung unter Einwirkung ihrer Gewichtskraft relativ zum Maschinenrahmen parallel zur Schwerkraftwirkungsrichtung und orthogonal zu dieser bewegbar ist, danach
• Hängenlassen der mit dem Maschinenrahmen mittels der Verbindungsvorrichtung beweglich verbundenen Arbeitseinrichtung, und danach
• Abstützen der Arbeitseinrichtung.

This object is achieved according to the invention by a method of the type initially mentioned, in which the alignment step comprises the following sub-steps:

• Connecting the machine frame and the working device to each other by means of a connecting device which has a frame coupling section arranged to be coupled to the machine frame and a device coupling section arranged at a distance from the frame coupling section and adapted to be coupled to the working device, such that the working device acts under the action its weight force is movable relative to the machine frame parallel to the gravity direction of action and orthogonal to this, thereafter
• Hanging the working device movably connected to the machine frame by means of the connecting device, and thereafter
• Supporting the working device.

By providing the connection of the machine frame with the working device by means of the described connecting device, the working device can be connected to the machine frame in a pendulum fashion, so that when the working device connected to the machine frame is suspended therefrom leaves, this can move automatically gravity driven in a predetermined relative position relative to the machine frame.

If the connecting device is suitably dimensioned or / and the connecting device between the machine frame and the working device is appropriately oriented when its coupling sections are coupled to the machine frame and the working device, the working device alone under the effect of its weight can assume a predetermined relative position in which the fixing formations and opposing formation formations are sufficiently aligned in an alignment plane spanned by parallel to the machine frame longitudinal direction and the machine frame transverse direction and can be easily approximated to one another. At the height of the alignment plane relative to the tillage machine is not important. The alignment plane only serves to specify a relative position of the working device and machine frame, regardless of the height position of the working device, only in the coordinates "machine frame longitudinal direction" and "machine frame transverse direction".

Preferably, in order to facilitate alignment of the working device relative to the machine frame, the machine frame is arranged before or during the alignment so that the alignment plane is oriented orthogonal to the direction of gravity action.

To make the oscillating connection of the working device to the machine frame, the connecting step may generally involve connecting the device coupling section to at least one device coupling formation of the working device and connecting the frame coupling section to at least one frame coupling formation of the machine frame. The at least one device coupling formation or the at least one frame coupling formation can in principle be provided at arbitrary locations on the working device on the one hand and on the machine frame on the other hand. Because the connecting device arranged between the at least one device coupling formation and the at least one frame coupling formation can, if the working device hangs freely on the machine frame, ensure that the working device assumes a relative position with respect to the machine frame, which leads to a longitudinally aligned arrangement of fixing and Gegenfestlegeformationen in the above-mentioned alignment plane.

The number of device coupling formations may be larger or smaller than the number of frame coupling formations, such as when the connection device branches between the frame coupling section and the device coupling section. Since three points define a plane, it is advantageous if three non-collinear coupling sections provided at a distance from one another are provided on at least one object of the machine frame and the working device. In principle, it suffices if only one coupling section is provided on the other object of the machine frame and the working device, in which case an additional adjustment intervention by one or more employees may be necessary in order to obtain a relative rotation which is basically possible with only one coupling formation present at one end of the connecting device between working device and machine frame to prevent or correct an axis of rotation parallel to the axis of gravity direction of rotation. If at least three non-collinear coupling formations are provided on one object of the machine frame and the working device and at least two coupling formations are provided on the other object, the relative rotation about a rotation axis parallel to the direction of gravity action can be hindered or even prevented. With at least three spaced, non-collinear coupling formations on the machine frame on the one hand and the working means on the other hand, the relative position occupied by the working means relative to the machine frame, when freely suspended therefrom, can be uniquely determined, regardless of where the focus of the work facility is. Because the connection device can absorb three gravitational tilting moments at the coupling points via three device coupling formations which are arranged non-collinearly on the working device, so that such tilting moments do not result in any tilting movement of the working device relative to the machine frame.

If it is stated above that the working device is movable under the action of its weight parallel to the direction of gravity of gravity and orthogonal to this, this should be understood as a measure of the stiffness of the connecting device. The connecting device does not have to be so limp that it is already deformable in the unconnected state, which is not coupled to the machine frame and the working device. Then, however, when the working device is suspended by the connecting device on the machine frame oscillating, the connecting device is driven by the weight of the working device to allow the described movement.

The mobility parallel to the direction of gravity action and orthogonal thereto is to ensure that the work equipment, when freely suspended from the machine frame, assumes a desired relative position in which the work equipment has the least potential energy. If the work equipment is in a position of higher potential energy, the connection device should allow movement of the work equipment in the direction of gravity action until the location of least potential energy is reached. In this movement, the connecting device guides the working device orthogonally to the direction of gravity action - just like a pendulum - so that the working device, when it reaches and rests in the lowest potential energy location, assumes a desired end position in the aforesaid alignment plane the approximation of the fixing and counter-fixing formations can be made to achieve a locking engagement therebetween.

Although the working device is located between the base and the machine frame, but offset with respect to their relative position to the machine frame in the alignment plane with respect to its attachment position, which allows an operational definition of the working device on the machine frame in the machine frame longitudinal direction and / or offset in the machine frame transverse direction, this offset by the use described the connection device and made possible by them swinging suspension of the working device on the machine frame in the manner described.

The frame coupling section of the connection device can have one or more coupling shapes, each of which can be coupled to a frame coupling formation, preferably being positively coupled. Likewise, the device coupling portion of the connection device may include one or more device coupling shapes, each of which is coupleable to a device coupling formation. This coupling is preferred to ensure the transferability of the largest possible forces form fit.

According to the above, the number of frame coupling shapes may be larger or smaller than the number of the device coupling shapes.

Preferably, the connection device has as many frame coupling shapes as device coupling shapes, in order to be able to distribute the forces acting on the coupling frames during free hanging of the working device on the machine frame as uniformly and uniformly as possible among the existing coupling shapes. Therefore, also preferably, the number of frame coupling formations is equal to the number of device coupling formations.

Although the device and / or frame coupling formations may be provided at arbitrary locations of the working device and / or the machine frame, the at least one device coupling formation is preferably a set formation and / or the at least one frame coupling formation is preferably an opposing set formation. By using pre-existing keying formations and / or opposing formations as facility coupling formations or frame coupling formations, the manufacturing cost of the tillage machine can be reduced since no coupling formations need to be formed and provided in addition to the fixation and / or opposing fixation formations.

Preferably, the distance direction in which the fixing formations and associated counter-fixing formations are in alignment with each other runs parallel to the direction of gravity, so that the approaching of fixing formations and counter-fixing formations is prevented by simply lifting the working device the gravity direction of action and / or lowering of the machine frame in the direction of gravity action can take place. In this case, moreover, the alignment of the working means by swinging suspension on the machine frame and hanging it on the machine frame can be done with great accuracy, since a pendulum suspension of the working device on the machine frame such that after a possibly occurring at the beginning of hanging lethal reciprocating pendulum motion associated fixing and Gegenfestlegeformationen come to rest in the direction of gravity force exactly above each other, is particularly easy to implement.

The step of placing the machine frame and the working device relative to one another such that the working device is between the machine frame and the ground may include movement of the machine frame relative to the ground via the working device. This movement preferably takes place parallel to the alignment plane. Additionally or alternatively, the arranging step may include movement of the working device received on a transporting vehicle under the machine frame. Usually, the movement of the machine frame and / or the movement of the working device will have a movement component in the machine frame transverse direction or even run predominantly or completely in the machine frame transverse direction.

According to one embodiment of the present invention, the step of suspending the working device movably connected to the machine frame may comprise lifting the machine frame relative to the ground and / or lowering a working device carrying carrying device of a transporting vehicle relative to the ground. Above all, the lifting of the machine frame can be easily realized if the machine frame of the tillage machine, as is often the case, is supported by a hoist height variable above the ground. The hoist can include one or more lifting columns, with which drives the machine, for example via hydraulic piston-cylinder arrangements are arranged vertically adjustable on the machine frame.

Likewise, the step of supporting the working device may comprise lowering the machine frame relative to the ground, in particular until the working device settles on the ground, and / or lifting a carrying device carrying a carrying device of a transporting vehicle relative to the ground. Again, when the above-mentioned hoist is present, it is preferable to lower the machine frame by means of the hoist.

As indicated above, in addition to merely hanging the work implement on the machine frame, adjustment of the work implement relative to the machine frame may be required, such as when the connection device allows for relative rotation between work implement and machine frame about the yaw axis of the machine, albeit a slight one.

Gravity-driven self-aligning due to the oscillating suspension of the working equipment on the machine frame can be considered complete when the locating devices and the counter-fixing devices are spaced apart from each other along the gravitational direction of action and are aligned with each other. Then, by an approximation of the machine frame and working device parallel to the direction of gravity direction of action, an operational definition of the working device can be achieved on the receiving section. Preferably, the connecting device extends even in the aligned state of the working device parallel to the direction of gravity action. By way of example, the connecting device may comprise, at least in sections, a chain or a cable which, in the fully aligned state in which support is carried out, is then preferably in a position stretched parallel to the direction of gravity of action.

In principle, it may be thought to leave the connection device permanently coupled to the machine frame and / or to the working device. Thus, for example, a processing machine with permanently coupled with this connection device without prior setup to align a working device.

However, it may also be advantageous to remove the connection device from the soil tillage implement when it is no longer needed. This is the case, for example, when the connection device is coupled on the machine frame side and / or work side with the fixing formations and / or the opposing fixing formations, so that the connecting device could hinder the production of a locking engagement between said formations or already approaching the fixing formations and the opposing fixing formations.

Since the connecting device is no longer needed after supporting the working device, the removal of the connecting device is preferably carried out after supporting the working device and before setting the working device on the receiving portion. Then, when a separate fixing means is needed for operational definition of the working device on the receiving portion, such as a fixing bolt, a fixing screw or a screw-nut combination, the connecting device can be replaced by the fixing means.

In principle, it is conceivable that the connecting device comprises exactly one piece, for example when the connecting device branches between the frame coupling section and the device coupling section. Preferably, however, the connection device comprises a plurality of sub-connection devices, each of which has a frame coupling section adapted to be coupled to the machine frame and a device coupling section arranged at a distance from the frame coupling section and adapted to be coupled to the working device. What has been said above about the connecting device preferably also applies to at least a part of, particularly preferably for all partial connecting devices.

The sub-connection devices may be mutually connected to one another via a common connection component or may form the connection device unconnected as separate sub-components. For example, each sub-connection device at least partially a Chain and / or have a rope. Due to the greater load carrying capacity of ropes and due to the higher internal friction between the rope strands, as compared to chains, provided by ropes, the use of rope material to form the connection device or the sub-connection devices is preferred.

The cable or chain sections of the connection device or the part connection devices in general can be provided inclined against each other in the state coupled to the working device and machine frame, so that forces acting in the alignment plane add up to a total force of zero.

The present invention also relates to a tillage machine having a machine frame and a working device connected to the machine frame, in which the working device is connected to the machine frame by means of a connecting device which, due to the advantageous effect of the oscillating on the machine frame suspended for the purpose of alignment of work equipment and machine frame a frame coupling portion coupled to the machine frame and a device coupling portion spaced apart from the frame coupling portion and coupled to the working device, the frame coupling portion and the device coupling portion being coupled at least parallel to and perpendicular to the gravity direction of action the weight of the working device are movable relative to each other. In order to be able to provide the most extensive alignment mobility of the working device relative to the machine frame, it is provided that the working device is connected to the machine frame only by means of the connecting device. This means that the working device, at least during a period of the alignment process, does not have a rigid connection to the machine frame.

While the tillage machine claimed above is not operable per se because of the pendulum suspension of the work implement on the machine frame, it is a tillage machine in the described configuration to achieve an alignment achievement for more than a brief moment.

In order to be able to reliably ensure the alignment movement of the working device relative to the machine frame, it is preferably provided that the working device is suspended at a distance from a base on which the tilling machine rests, hanging freely by means of the connecting device on the machine frame. Alternatively, it can also be thought that the working device gets up on a movable trolley with a support surface which is resilient towards the ground. Also in this case, the working device would be movable parallel to the direction of gravity of gravity and orthogonal to it relative to the machine frame.

In known manner, the tillage machine according to the invention is preferably a self-propelled tillage machine with a chassis and a traction drive. The chassis comprises at least two drives, preferably three or four or more drives, which roll on the ground on which the machine stands up. To set a desired direction of travel of the tillage machine at least a portion of the drives is steerable. Preferably, all drives are steerable, preferably in accordance with the known Ackermann condition. The drives may each have one or more support wheels or may have a track to achieve a high footprint with a correspondingly low surface load.

Preferably, the machine frame is height adjustable by means of a hoist with respect to the ground, which has already been stated above. Preferably, the hoist for each drive on a variable-height lifting column, with which the drive is coupled vertically adjustable height to the machine frame. The developments of the connecting device described above in connection with the method according to the invention also apply to the connecting device mentioned as part of the soil cultivation machine. This is identical to the connection device of the method.

Due to the beneficial effect of a hanging freely suspended on the machine frame working device for their orientation relative to the machine frame, the present invention further relates to a use of a connection device for pendulum hanging connection of a machine frame of a tillage machine, such as road milling machine, stabilizer or recycler, with an operationally for rigid determination the working frame formed in the machine frame, the connecting device having a frame coupling portion arranged to be coupled to the machine frame and a device coupling portion arranged at a distance from the frame coupling portion and adapted to be coupled to the working means, wherein the frame coupling portion and the device coupling portion a displacement axis orthogonal to the displacement axis can be bent relative to one another, in particular by bending the connecting device ng.

The connecting device may comprise, in addition to the above-mentioned components rope or chain and a telescopic linkage. The connecting device can even be formed only from a telescopic linkage, when the frame and the device coupling portion of the connecting device in a state coupled to the machine frame and the working device allows a relative rotation about at least two mutually orthogonal axes of rotation. The angularity is then eliminated.

The working device may be, for example, a milling drum rotatably mounted in a Fräskasten or a rotatably provided in a device housing mixing rotor.

Figur 1

eine Seitenansicht in Maschinenrahmenquerrichtung einer Bodenbearbeitungsmaschine in beispielhafter Gestalt einer Großfräse, an welcher das erfindungsgemäße Verfahren zur Anwendung kommen kann,

Figur 2

den Bereich eines Aufnahmeabschnitts des Maschinenrahmens der Maschine von Figur 1 zu Beginn einer Anordnung einer Fräseinrichtung daran, wobei die Fräseinrichtung mit einer Rangiereinrichtung im Bereich des Aufnahmeabschnitts unter den Aufnahmeabschnitt bewegt wurde,

Figur 3

die Ansicht von Figur 2 mit geringfügig an die Fräseinrichtung angenähertem Maschinenrahmen, wobei zwischen dem Maschinenrahmen und der Fräseinrichtung eine Verbindungsvorrichtung angeordnet ist,

Figur 4

die Ansicht von Figur 3, wobei der Maschinenrahmen und die mit ihr mittels der Verbindungsvorrichtung verbundene Fräseinrichtung derart angehoben sind, dass die Fräseinrichtung frei am Maschinenrahmen hängt,

Figur 5

die Ansicht von Figur 4 mit relativ zum Maschinenrahmen ausgerichteter Fräseinrichtung, die wieder auf dem Untergrund abgesetzt ist,

Figur 6

die Ansicht von Figur 5 mit an die Festlegeformationen der Arbeitseinrichtung angenäherten Gegenfestlegeformationen des Maschinenrahmens bzw. des Aufnahmeabschnitts und

Figur 7

die Ansicht von Figur 6 mit betriebsbereit am Maschinenrahmen festgelegter Fräseinrichtung.

The present invention will be explained in more detail with reference to the accompanying drawings. It shows:

FIG. 1

a side view in the machine frame transverse direction of a tillage machine in an exemplary shape of a large milling machine, on which the inventive method can be used,

FIG. 2

the area of a receiving portion of the machine frame of the machine of FIG. 1 at the beginning of an arrangement of a milling device thereon, wherein the milling device was moved with a routing device in the region of the receiving section under the receiving section,

FIG. 3

the view of FIG. 2 with a machine frame that is slightly closer to the milling device, wherein a connecting device is arranged between the machine frame and the milling device,

FIG. 4

the view of FIG. 3 wherein the machine frame and the milling device connected to it by means of the connecting device are raised in such a way that the milling device hangs freely on the machine frame,

FIG. 5

the view of FIG. 4 relative to the machine frame aligned milling device, which is deposited again on the ground,

FIG. 6

the view of FIG. 5 with counter to the Festlegeformationen the working device Gegenfestlegeformationen of the machine frame or the receiving portion and

FIG. 7

the view of FIG. 6 with milling device set ready for use on the machine frame.

The tillage machine is generally designated 10. It has a machine frame 12 which is connected in known manner via front height-adjustable lifting columns 14 and rear height-adjustable lifting columns 16 with front drives 18 and with rear drives 20. The front drives 18 and the rear drives 20 stand on a footprint surface A of a substrate U and form a chassis 22nd

The viewer of FIG. 1 looks at the tillage machine or "machine" 10 in the direction of the plane of FIG. 1 orthogonal machine frame transverse direction Q. The machine frame longitudinal direction is denoted by L. and runs parallel to the plane of FIG. 1 , The machine height direction H also runs parallel to the plane of FIG. 1 and orthogonal to the machine longitudinal and cross machine direction L or Q. The arrowhead of the machine frame longitudinal direction L in FIG. 1 points in the forward direction. In doubt, the machine frame height direction H is parallel to the direction of the lifting columns 14 and 16. The machine height direction H is parallel to the yaw axis of the machine 10, the machine longitudinal direction L is parallel to the roll axis and the cross machine direction Q is parallel to the pitch axis Ni.

The soil working machine 10 may have a control station 24, from which an operator can control the machine 10 via a control panel 26.

Under the machine frame 12 is only dashed and only in FIG. 1 a working device 28 indicated here by way of example as a milling device 28 with a recorded in a Fräskasten 30 milling drum 32 which is rotatable about a running in machine frame transverse direction Q milling axis R, so that underground material starting from the footprint surface A of the substrate U with a by the relative altitude of the Machine frame 12 can remove certain milling depth. The height adjustment of the machine frame 12 by the lifting columns 14 and 16 therefore also serves to adjust the milling or general working depth of the machine 10 during tillage. The tillage machine 10 illustrated by way of example is a large milling machine, for which the arrangement of the milling device 28 in the machine frame longitudinal direction L between the front and rear drives 18 and 20 is typical. Such large milling machines or ground-removing machines in general usually have a conveyor belt to transport removed soil material away from the machine 10. An even in the machine 10 basically present conveyor belt is for reasons of clarity in FIG. 1 not shown.

In the side view of FIG. 1 It can not be seen that the machine 10 has two lifting columns 14 and 16, each with a drive 18 and 20 connected thereto, both in its front end area and in its rear end area. The lifting column 14 is in a further known manner by means of a Coupling structure 34 coupled to the drive 18. The rear lifting columns 16 are connected to their respective drive 20 via a coupling structure 36 constructed identically to the coupling structure 34. The drives 18 and 20 are constructed substantially identical and form the chassis 22 of the machine.

The drive 18 with a direction indicated by the double arrow D running direction has in the example shown a radially inner receiving structure 38, on which a revolving crawler 40 is arranged.

The lifting column 14 and with it the drive 18 is rotatable about a steering axis S by a steering device, not shown.

In FIG. 2 only the section of the soil working machine 10 of interest for the execution of the method according to the invention is shown enlarged. In this area, the method according to the invention is carried out, at the end of which a milling device 28, which is ready for operation on the machine frame 12, stands.

The machine frame 12 has, in a manner known per se, a receiving section 42 which is designed for the operative definition of the milling device 28 on it. For this purpose, the receiving portion 42 of the machine frame 12, for example, a front frame mounting plate 44 and a rear frame mounting plate 46.

The milling device 28 is discontinued in the example shown on a transport or shunting device 48, which via tank rollers 50 in FIG. 2 gets up on the underground U.

With the shunting device 48, which is known per se, the milling device 28 has been moved parallel to the machine frame transverse direction Q in the region of the receiving section 42 under the machine frame 12. The milling device 12 is thus roughly oriented in the vicinity of that alignment position in which an operationally fixed fixing of the milling device 28 to the machine frame 12 can take place.

The milling device 28 has a front device mounting plate 52 and a rear device mounting plate 54. In the ready-assembled state, the front frame mounting plate 44 and the front device mounting plate 52 will abut each other as the rear frame mounting plate 46 and the rear device mounting plate 54. In an alignment step to be explained below, the milling device 28 and The machine frame 12 and its receiving portion 42 are aligned with each other so that a front fixing formation 56 in the front device mounting plate 52 is aligned with a front Gegenfestlegeformation 58 in the front frame mounting plate 54. The same applies to a rear fixing formation 60 in the rear device mounting plate 54, which is aligned with a rear counter-fixing formation 62 in the rear frame mounting plate 46 in alignment.

The milling device 28 and the receiving portion 42 have for the most precise alignment of milling device 28 and receiving portion 42 relative to each other parallel to the machine frame transverse direction Q displaced behind the plane of FIG. 2 at least one other pair of retention and counterfixation formations, preferably at least two further pairs of retention and counterfixation formations, which, however, are characterized by those disclosed in U.S. Pat FIG. 2 Device components shown hidden and therefore not visible.

Only for the sake of completeness it should be explained that the machine frame 12, the milling roller near the longitudinal end of a transport device 64 can be seen, with which of the in Fig. 2 unrecognizable milling drum 32 worn substrate can be transported away from the soil tillage machine 10 away.

In the Fig. 2 to 6 Not shown milling drum 32 is parallel to the machine frame transverse direction Q extending axis of rotation R in the milling box 30 by means of in the Fig. 2 to 7 partially recognizable Fräswalzenlagerung 66 recorded. It can be seen in FIG. 2 a fixed side wall 68 of the milling box 30 and a remote from the machine frame lower end of the milling box 30th provided movable side plate 70. The side plate 70 is in the machine frame longitudinal direction L before and behind the milling drum 32 each höhenverlagerbar added to the fixed side wall 68, wherein the höhenverlagerbaren recordings in Maschinenrahmenlängsrichtung L are such movement tolerant that the movable side plate 70 by different height displacement amounts at its bearings ago and behind the milling drum 32 also slightly tilt about a parallel to the machine frame transverse direction Q extending Verkippungsachse V, which coincides in the present example with the axis of rotation R of the milling drum 32. The movable side plate 70 runs on a runner 72 on the substrate U and can be lifted by the assemblies 74 at its two longitudinal end portions of the substrate U.

In FIG. 3 the machine frame 12 is approximated by adjusting the front and rear lifting columns 14 and 16, respectively, to the milling device 28 so that a connecting device 76 can be arranged between the frame mounting plates 44 and 46 and the associated device mounting plates 52 and 54 to the milling device 28 relative to the machine frame 12 movable, more precisely pendulum movable to connect.

In the present example, the connecting device 76 has a plurality of partial connecting devices 76a and 76b, and preferably also further, not shown, preferably similar partial connecting devices.

As an example for all sub-connection devices, the sub-connection device 76a will be described below: It has a frame coupling section 78 and a device coupling section 80. The coupling portions 78 and 80 are constructed substantially identically and comprise a solid shaft with a T-head, that is a head with a larger diameter than that of the shaft. Here, shaft and T-head can basically represent separate components that can be releasably connected to each other, for example by means of a screw or plug connection. Alternatively, a coupling portion relative to each other comprise movable, in particular pivotable components which, between a mounting position, in which they in a direction of passage through an opening or hole in a mounting plate can be passed, and an engagement position are adjustable, in which they are not feasible against the direction of passage through the opening or bore, for example because at least one of the components in the engaged position on the opening or bore surrounding area of the mounting plate is supported , Further, coupling shapes of the connecting device and fixing and / or opposing fixing formations may include hooks and eyes. A hook can be designed to protect against bending under load as a carabiner hook.

The shanks of the coupling sections 78 and 80 pass through the fastening formation 56 or the opposing fastening formation 58 and the respective heads abut against the surfaces of the mounting plates 54 and 52 facing away from each other, so that they act on the partial connection device 76a tensile forces in the respective mounting plates 54 and 52 can derive. The larger diameter T-shank of the frame coupling portion 78 forms an above-mentioned frame coupling shape which is adapted to be coupled to the counter-fixing formation. The larger diameter T-shaft of the device coupling portion 80 constitutes an above-described device coupling shape which is formed to be coupled to the fixing formation 56.

Between the coupling sections 78 and 80, the sub-connection device 76a has a movement section 82 which permits relative movement of the coupling sections 78 and 80 at least under the weight force of the milling device 28 at a ready coupled state to the machine frame height direction H or to that of the parallel yaw axis G orthogonal Abwinkelachse W allows. The Abwinkelachse W is in FIG. 3 drawn orthogonal to the plane of this figure. In fact, it lies in an alignment plane which is defined by parallels to the machine frame longitudinal direction L and to the machine frame transverse direction Q.

Instead of the chain shown by way of example in the moving section 82, the partial connecting device 76a may comprise a rope piece. Likewise, in the illustrated Example, massive shafts of the coupling portions 78 and 80 may be formed by a chain or a rope.

In FIG. 4 the advantageous orientation of the milling device 28 relative to the machine frame 12 is shown. Compared with the state of FIG. 3 was the machine frame 12 raised by the lifting columns 14 and 16 relative to the substrate U and thereby lifted off the only connected via the connecting device 76 with the machine frame 12 milling device 28 from the substrate U.

The milling device 28 is in FIG. 4 oscillating alone connected via the connecting device 76 with the machine frame 12 and hangs freely on this.

"Pendulum" in the sense of the present application does not mean that the milling device 28 or generally a working device actually has to perform a pendulum motion. It just means that she can do such a movement. The oscillating motion means that the milling device 28 can perform a movement orthogonal to the gravitational force direction g, forcibly traversing a partial circular path with each partial connector 76a and 76b due to the suspension on the machine frame 12, so that they move orthogonally to the direction of gravity of gravity from the direction shown in FIG FIG. 4 shown stretched state away from the subsurface U, thus gaining potential energy. The potential energy acts at the top dead center of a pendulum motion as an energy source for a subsequent backward movement back to the illustrated extended position (bottom dead center). This can be overshoot, which due to the external friction between the connecting device 76 and the machine frame 12 on the one hand and the milling device 28 on the other hand, and due to the internal friction within the connecting device 76 this oscillating motion is gradually brought to a standstill, which will then be at the point at which the milling device has the lowest potential energy under the given suspension conditions. Clearly, a pendulum movement will take place with greater amplitude, the farther the milling device 28 before free hanging in the alignment plane from its for an operational definition on Machine frame 12 required alignment position is removed. However, this is not a problem, because the oscillating motion will always end in the alignment position. With a larger initial amplitude, only the decay of the pendulum motion can take longer than with a smaller initial amplitude of the movement. If the aforesaid frictional effects cause the movement to decay before the milling device 28 reaches its exact alignment position, the relative position of the free-hanging milling device 28 can be manually adjusted until sufficient alignment is achieved.

The sub-connectors 76a, 76b and other sub-connectors, not shown, are sized to reach their stretched position in a coupled state, at which the potential energy of the milling device 28 is at a minimum, when the locating formations 56 and 60 and the associated Gegenfestlegeformationen 58 and 62 are aligned with each other so that they can be fixed together by mere approximation of the machine frame 12 and the milling device 28 to each other.

Preferably, fixation formations and associated counterstay formations are then perfectly aligned when aligned with each other in the direction of gravity g.

This is in FIG. 4 the case.

In FIG. 5 is shown the state in which the milling device 28 is discontinued after alignment by free hanging on the machine frame 12 back to the substrate U. The machine frame 12 is so far approximated to the milling device 28 that the connecting device 76 can be removed again from the machine frame 12 and the milling device 28. The state of machine frame 12 and milling device 28 thus corresponds to that of FIG. 3 with the difference that now the milling device 28 is aligned relative to the machine frame 12 for an operational definition of this.

In FIG. 6 Now, the machine frame 12 is completely approximated to the milling device 28 after removal of the connecting device 76, so that the mounting plates 52 and 44 on the one hand and 54 and 46 on the other touch. Due to the alignment previously performed, the locating formations 56 and 60 are aligned with their associated counterstay formations 58 and 62, respectively, so that the roughening device 28 in the in-situ FIG. 6 state shown ready for use, so ready to carry out a ground-milling operation, can be set on the machine frame 12.

In FIG. 7 the tillage machine 10 is shown with milling device 28 operably fixed to the machine frame 12. The fixing formation 56 and counter-fixing formation 58 as well as the fixing formation 60 and counter-fixing formation 62 are traversed by fixing means 84 and 86, respectively. By way of example, the fixing means 84 and 86 are a screw-nut combination. However, instead of the illustrated fixing means 84 and 86, any other known fixing means may be used, such as fixing bolts or hydraulically operable quick-acting, which may be permanently provided on the machine frame 12 and / or on the milling device 28 for producing and releasing a locking engagement.

With the method presented here, working devices can generally be aligned easily and quickly without any noteworthy additional equipment relative to the machine frame 12 of a soil cultivation machine 10 and fixed thereto.

The shunting device 48 shown in the figures described above does not necessarily have to be used. The machine frame 12 can be moved in a manner known per se parallel to the machine frame transverse direction Q via a working device 28 resting on the base U.

In addition or as an alternative to the on-board lifting columns 14 and 16, the height position of the working device 28 relative to the machine frame 12 can also be effected by other lifting devices. For example, the shunting device 48 have a raised and lowered platform on which the working device rests on the shunting device 48.

Claims (15)

Method for coupling a machine frame (12) of a tillage machine (10), such as a road milling machine, stabilizer or recycler, with a working device (28) between a receiving section (42) of the machine frame (12) receiving the working device (28) and a base (U ) on which the tillage machine (10) rests, the method comprising the following steps: Arranging the machine frame (12) and the working device (28) relative to one another such that the working device (28) is located between the machine frame (12) and the base (U), - Alignment of the receiving portion (42) and working device (28) relative to each other such that fixing formations (56, 60) of the working device (28) with the fixing formations (56, 60) and assigned to the operational definition of the working device (28) on the receiving portion (42 ) cooperating Gegenfestlegeformation (58, 62) of the receiving portion (42) along a distance direction with an underground (U) orthogonal directional component, Approximating commit formations (56, 60) and opposing formations (58, 62) to each other and - operational setting of the working device (28) on the receiving portion (42), characterized in that the step of aligning comprises the following substeps: - Connecting the machine frame (12) and the working means (28) to each other by means of a connecting device (76) which arranged for coupling with the machine frame (12) frame coupling portion (78) and a distance from the frame coupling portion (78) and a device coupling portion (80) formed to be coupled to the working means (28) such that the working means (28) is movable parallel to the gravity acting direction (g) and orthogonal thereto under the force of gravity relative to the machine frame (12) thereafter - Leaving the working device (28) movably connected to the machine frame (12) by means of the connecting device, and thereafter - supporting the working equipment (28). Method according to claim 1,
characterized in that the connecting step comprises connecting the device coupling section (80) to at least one device coupling formation of the working device (28) and connecting the frame coupling section (78) to at least one frame coupling formation of the machine frame (12). Method according to claim 2,
characterized in that the at least one device coupling formation is a fixation formation (56, 60) and / or that the at least one frame coupling formation is an anti-securement formation (58, 62). Method according to one of the preceding claims,
characterized in that the spacing direction is parallel to the direction of gravity action (g). Method according to one of the preceding claims,
characterized in that the step of aligning comprises adjusting working means (28) and machine frames (12) relative to each other. Method according to one of the preceding claims,
characterized in that the step of supporting is carried out when the fixing devices (56, 60) and the counter-fixing devices (58, 62) are spaced apart from each other and aligned with each other along the direction of gravity (g). Method according to one of the preceding claims,
characterized in that after supporting the working device (28) and before fixing the working device (28) on the receiving section (42), removing the connecting device (76), in particular replacing the connecting device (76) by at least one rigid fixing means (84 ), such as a fixing bolt. Method according to one of the preceding claims,
characterized in that the connection device (76) comprises a plurality of sub-connection devices (76a, 76b), each of which has a frame coupling section (78) adapted to be coupled to the machine frame (12) and a section spaced from the frame coupling section (16). 78) and adapted to be coupled to the working means (28), the device coupling portion (80). Soil preparation machine (10), such as a road milling machine, stabilizer or recycler, comprising a machine frame (12) and a working device (28) connected to the machine frame (12),
characterized in that the working means (28) is connected to the machine frame (12) by means of a connecting device (76) having a frame coupling portion (78) coupled to the machine frame (12) and a distance from the frame coupling portion (78). arranged and with the working means (28) coupled device coupling portion (80), wherein the frame coupling portion (78) and the device coupling portion (80) in the coupled state at least parallel to the direction of gravity (g) and orthogonal thereto under the action of Weight of the working device (28) are movable relative to each other. Soil cultivation machine (10) according to claim 9,
characterized in that the working device (28) is connected to the machine frame (12) only by means of the connecting device (76). Soil cultivation machine (10) according to claim 9 or 10,
characterized in that the working device (28) at a distance from a substrate (U) on which the tillage machine (10) rests, suspended by means of the connecting device (76) on the machine frame (12) is suspended. Soil cultivation machine (10) according to one of claims 9 to 11,
characterized in that the tillage machine (10) is a self-propelled tillage machine with a chassis and a traction drive, wherein the machine frame (12) preferably by means of a hoist (14, 16) with respect to the substrate (U), on which the tillage machine (10) stands up , height adjustable. Soil cultivation machine (10) according to one of claims 9 to 12,
characterized in that the connecting device (76) comprises a plurality of sub-connecting devices (76a, 76b) each having a frame coupling portion (78) and a distance from the frame coupling portion (78) and arranged with the working means (28 ) coupled device coupling portion (80), wherein the frame coupling portion (78) and the device coupling portion (80) of each sub-connector (76a, 76b) in the coupled state at least parallel to the gravity direction (g) and orthogonal to this under the action of the weight of the working device (28) are movable relative to each other. Use of a connection device (76) for pendulum-hanging connection of a machine frame (12) of a tillage machine (10), such as a road milling machine, stabilizer or recycler, with a working device (28) operatively fixed to the machine frame (12), wherein the connecting device (76) a frame coupling portion (78) adapted to be coupled to the machine frame (12) and spaced from the frame coupling portion (78) and adapted for coupling to the working means (28) A device coupling portion (80), wherein the frame coupling portion (78) and the device coupling portion (80) are bendable about a relative to the distance direction orthogonal displacement axis relative to each other, in particular by bending of the connecting device (76). Use according to claim 14,
characterized in that the connecting device (76) at least partially comprises a rope or a chain.

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