EP3951057B1 - Soil processing roller system for soil processing machine - Google Patents

Description

The present invention relates to a soil tillage roller system for a soil tillage machine.

Soil tillage machines constructed with soil tillage rollers are used for tilling the subsoil in various areas. For example, such soil tillage machines are used as soil compactors in road construction, for example, to compact asphalt material or the subsoil lying under the asphalt material, with the compactor rollers provided in such soil tillage machines working as soil compactors having an unstructured, i.e. essentially smooth and have closed working outside. For other operations, roller tools, such as pad feet or chisels, may be provided on the tillage rollers to provide textured working exteriors.

From the DE 34 27 675 A1 a soil cultivating machine is known, the soil cultivating roller of which carries roller tools designed in the form of pad feet on a roll shell, so that the soil cultivating roller is basically constructed with a structured working outside. In order to be able to use the tillage roller of this known tillage machine in work areas that require a smooth, unstructured working outside, several casing segments following one another in the circumferential direction can be fixed by screwing to the roller casing. When the casing segments are fixed to the soil tillage roller, they form a smooth, ie essentially unstructured, working outer side surrounding the soil tillage roller with the padding feet provided on its roller shell. Depending on whether in this known soil tillage machine the soil tillage rollers are surrounded by the casing segments or not, the working outside can be rotated either through the respective roller casing or on a frame carried tillage rollers or provided by the shroud segments surrounding the roller mantle. As a result, depending on whether a soil tillage machine constructed in this way works with or without a casing provided on the soil tillage roller of the same, there are different mass ratios, as a result of which a work process to be carried out or the processing result of the tilled soil that can be achieved is strongly influenced.

A tillage roller system according to the preamble of claim 1 is from DE 10 2013 006 321 A1 known. This soil cultivation roller system comprises a roller body which is rotatably carried on a soil compactor and has a roller jacket with an outer peripheral surface which is designed to be essentially smooth. This roller body forms, for example for compacting asphalt material, a soil cultivation roller generally referred to as a smooth drum. In order to be able to compact other types of subsoil, such as soil, a working jacket constructed with a plurality of working jacket segments can be attached to the roller body, which completely surrounds the outer peripheral surface of the roller jacket and, for example, carries padding feet.

It is the object of the present invention to provide a soil tillage roller system for a soil tillage machine, with which work processes can be carried out essentially independently of the structure of the soil tillage roller system.

• einen um eine Walzendrehachse drehbaren Walzenkörper mit einer Trägerstruktur zur drehbaren Lagerung des Walzenkörpers und mit einem radial außen an der Trägerstruktur getragenen Trägermantel,
• eine Gruppe von an einer Trägermantel-Außenseite anliegend zu positionierenden, eine Arbeits-Außenseite einer Bodenbearbeitungswalze bereitstellenden Arbeitsmänteln, wobei jeder Arbeitsmantel eine Mehrzahl von in Umfangsrichtung aufeinanderfolgend den Walzenkörper ringartig vollständig umschließend anzuordnenden Arbeitsmantelsegmenten umfasst,

wobei die Gruppe von Arbeitsmänteln wenigstens zwei Arbeitsmäntel mit zueinander im Wesentlichen gleicher Masse umfasst.According to the invention, this object is achieved by a soil tillage roller system for a soil tillage machine according to claim 1. The soil tillage roller system comprises:

• a roller body rotatable about a roller axis of rotation with a support structure for the rotatable mounting of the roller body and with a support casing carried radially on the outside of the support structure,
• a group of to be positioned adjacent to a carrier shell outside, a working outside of a tillage roller providing working shells, each working shell comprising a plurality of working shell segments to be arranged one after the other in the circumferential direction completely enclosing the roller body in a ring-like manner,

wherein the group of work jackets comprises at least two work jackets with a mutually substantially equal mass.

Since at least two, preferably all, working shells of the group of working shells have essentially the same masses in the soil tillage roller system constructed according to the invention, an overall system of the same mass results in combination with the roller body carrying these working shells. Thus, regardless of which of the working jackets is attached to the roller body with essentially the same mass, it can be ensured that the worked soil is subjected to the same mass.

This aspect of the soil tillage roller system constructed according to the invention is particularly advantageous because the shell of the roller body, which is supported on the support structure so that it can rotate about the axis of rotation of the roller, is not a roller shell that provides a working outer side, but is a carrier shell on which a respective working shell, which provides a working outside for a work process to be carried out, is defined or can be defined as a separate assembly group.

This means that in a soil tillage roller system constructed in this way, the carrier casing of the roller body does not provide the working outside in any operating state for tilling soil, and that in every operating state for tilling soil the working outside is provided by or on a respective one on the roller body as a separate assembly to be defined work coat of the group of work coats is provided.

As a result, regardless of which operation is to be carried out with the roller body covered with one of the working shells of the group of working shells, it is ensured that the working system, i.e. the composite consisting of the roller body and the selected working shell, always has the same mass and therefore the processed subsoil can always be subjected to essentially the same load.

Furthermore, with such a configuration of the soil tillage roller system, the carrier shell can be provided with structures that enable a defined and stable fixing of the working shell made up of several working shell segments, without having to take into account that such structures are provided when they are provided on a working outer side of a soil tillage roller on the one hand could impair the processing result and on the other hand could be subject to wear and tear that would impair their functionality.

For such a configuration of the soil tillage roller system with a roller body serving only as a carrier, it can be provided that with each working shell each working shell segment has a segment shell and on each segment shell on one of the carrier shell outside of the carrier shell facing and / and on the carrier shell outside supporting segment shells - On the inside, a plurality of fastening elements protruding radially inwards are arranged in a stationary manner, and wherein a fastening element penetration opening is provided in the carrier casing in association with each fastening element and each fastening element reaching through a fastening element penetration opening is arranged on a carrier casing inner side of the carrier casing for fixing with respect to the roller body protrudes.

For a stable fixing of the working jacket segments on the roller body, it is further proposed that at least one fastening element is fixedly arranged on the segment shells in at least three mutually spaced connection areas in the direction of the roller axis of rotation.

In order to prevent the machining process from being impaired by structures that could be formed in the ground being worked, such as asphalt material, it is proposed that no openings penetrating the segment shells be provided on the segment shells in the area of the fastening elements. This means that the segmented shells are also and particularly closed in those areas in which fastening elements are provided on them and thus provide a continuous, uninterrupted outer surface.

For adaptability to different work processes to be carried out, the group of work coats can comprise at least one work coat with work coat segments providing a substantially unstructured, closed working outside of the work coat, and can include at least one work coat with work coat segments providing a structured work outside of the work coat.

In order to obtain a structured working outside, in the case of at least one working jacket, roller tools protruding radially outwards can be arranged on the working jacket segments.

The provision of a constant mass of a system comprising the roller body and one of the working casings is particularly advantageous if a vibration mechanism is provided on the roller body for generating a vibrational oscillation that acts on the roller body. Such a vibrational oscillation can be generated, for example, by one or more unbalanced masses rotating about the axis of rotation of the roller and having a center of gravity eccentric to the axis of rotation of the roller. Such rotating imbalances generate a force acting radially to the axis of rotation of the roller, which during the course of the rotation is also periodically directed vertically upwards, ie away from the soil to be worked, and vertically downwards, ie towards the soil to be worked. By generating such a vibration, which is also transmitted to the roller body and thus to the casing carried on it, the worked soil is not only subjected to a static load generated by the weight of a soil tillage roller, but also to a dynamic load caused by the radially oriented vibration acceleration. Because, according to the principles of the present invention, the system comprising the roller body and a respective working shell has a defined total mass that is the same for several, preferably all, working shells, the static load and also the dynamic load do not change during operation when changing between different working shells. This means that the vibration system can be optimized to known and constant mass ratios with regard to the imbalance provided in the vibration mechanism on the one hand and the mass to be accelerated by the rotating imbalance on the other hand.

In an embodiment that is particularly advantageous in terms of the compatibility of the working jacket segments, it is proposed that at least two working jackets be constructed with the same number of working jacket segments. This makes it possible for example, to combine the work coat segments of different work coats with each other.

For this purpose, it can be provided in particular that at least two working jackets are constructed with segmented shells having an outer peripheral structure that is essentially identical to one another.

Since, due to manufacturing tolerances and the wear that occurs during soil tillage operations, a state in which all working shells have exactly the same mass and therefore the roller body in connection with each of these working shells has the same total mass, cannot be achieved in principle, it is further proposed that a The mass of the at least two working jackets with essentially the same mass in relation to one another is in the range of +/-15%, preferably in the range of +/-10%, most preferably in the range of +/-5%, of a target working jacket mass, or/ and that a mass of the at least two working coats with one another essentially equal mass in the range of +/- 15%, preferably in the range of +/- 10%, most preferably in the range of +/- 5%, an average working coat mass of these at least two working jackets with each other substantially the same mass. This means that, within the meaning of the present invention, working shells whose mass deviation is in such a range are considered to be working shells with essentially the same working shell mass, which ensures that there is also a total mass in connection with the mass of the roller body with which the desired result of the tillage, in particular the desired compaction, can be ensured. This is especially true in the case that a vibration mechanism is assigned to such a system of roller body and working jacket, which is designed to excite an oscillating system with a defined mass.

The invention also relates to a soil tillage machine with at least one soil tillage roller system constructed according to the invention.

Fig. 1

eine perspektivische Ansicht einer Bodenbearbeitungsmaschine mit einer Bodenbearbeitungswalze;

Fig. 2

die Bodenbearbeitungswalze der Bodenbearbeitungsmaschine der Fig. 1 in perspektivischer Ansicht;

Fig. 3

die Bodenbearbeitungswalze der Fig. 2 mit einem von einem Walzenkörper der Bodenbearbeitungswalze losgelösten Arbeitsmantelsegment eines an dem Walzenkörper vorgesehenen Arbeitsmantels;

Fig. 4

ein an seiner Innenseite betrachtetes Arbeitsmantelsegment;

Fig. 5

den Walzenkörper der Bodenbearbeitungswalze der Fig. 2 und 3 von radial außen betrachtet;

Fig. 6

eine Axialansicht des Walzenkörpers der Fig. 5;

Fig. 7

eine mit bolzenartig ausgebildeten Befestigungsorganen zusammenwirkende Klemmbackenanordnung zur Festlegung eines Arbeitsmantelsegments am Walzenkörper;

Fig. 8

ein vom Walzenkörper radial losgelöst dargestelltes Arbeitsmantelsegment;

Fig. 9

einen axialen Endbereich einer Bodenbearbeitungswalze mit einem an dem Walzenkörper durch Klemmbackenanordnungen der Fig. 7 festgelegten Arbeitsmantelsegment;

Fig. 10

den an einem Rahmen einer Bodenbearbeitungsmaschine getragenen Walzenkörper im Längsschnitt;

Fig. 11

eine der Fig. 2 entsprechende Darstellung einer Bodenbearbeitungswalze mit einer anderen Ausgestaltungsart eines den Walzenkörper umgebenden Arbeitsmantels;

Fig. 12

eine weitere eine der Fig. 2 entsprechende Darstellung einer Bodenbearbeitungswalze mit einer anderen Ausgestaltungsart des einen Walzenkörper umgebenden Arbeitsmantels.

The invention is described in detail below with reference to the attached figures. It shows:

1

a perspective view of a soil cultivating machine with a soil cultivating roller;

2

the tillage roller of the tillage machine 1 in perspective view;

3

the tillage roller 2 with a working jacket segment, detached from a roller body of the soil tillage roller, of a working jacket provided on the roller body;

4

a work jacket segment viewed from its inside;

figure 5

the roller body of the tillage roller 2 and 3 viewed from radially outside;

6

an axial view of the roller body figure 5 ;

7

a clamping jaw arrangement cooperating with bolt-like fastening elements for fixing a working casing segment on the roller body;

8

a working jacket segment shown radially detached from the roller body;

9

an axial end portion of a tillage roller with a on the roller body by jaw arrangements of 7 specified work shell segment;

10

the roller body carried on a frame of a soil cultivating machine in longitudinal section;

11

one of the 2 Corresponding representation of a soil tillage roller with a different embodiment of a working jacket surrounding the roller body;

12

another one of the 2 Corresponding representation of a soil tillage roller with a different embodiment of the working jacket surrounding a roller body.

In 1 a soil cultivating machine is generally denoted by 10 . The soil tillage machine 10 includes a rear carriage 12 with a drive unit provided thereon and wheels 14 driven by the drive unit, for example a diesel internal combustion engine.

A soil tillage roller, generally designated 20, is rotatably supported about a roller axis of rotation W on a front carriage 18, which is pivotably connected to the rear carriage 12. In the 2 The soil tillage roller 20 shown in more detail is constructed with a roller body 22 rotatably mounted on the front carriage 18 . In the exemplary embodiment shown, the roller body 22 comprises a carrier structure 28, which is also generally referred to as blanks and is arranged at an axial distance from one another and is constructed as a carrier structure 28, which is rotatably supported about the roller axis of rotation W via respective bearing areas on the lateral frame areas 30, 32 of the front end 18. In their outer peripheral area, the two carrier disks 24, 26 are fixed, for example by welding, to a carrier jacket 34 that is essentially cylindrical and closed in the manner of a ring.

A working jacket, generally designated 38 , is provided on a carrier jacket outside 36 . In the exemplary embodiment shown, the working jacket 38 comprises six working jacket segments 40 which follow one another in the circumferential direction and directly adjoin one another and which are adapted to the circularly curved outer peripheral contour of the carrier jacket 34 have curved segment shells 42 . One recognizes in 2 that the segment shells 42 engage in one another in the manner of teeth in their segment shell longitudinal edges 44 adjoining one another in the circumferential direction. Alternatively, the segmented shell longitudinal edges 44 could also be designed to extend in a straight line in the direction of the roller axis of rotation W.

In this exemplary embodiment shown, the compactor roller 20 is designed as a so-called ground breaker roller and for this purpose has a plurality of roller tools 48 on a working outer side 46 of the working casing 38 on each of the working casing segments 40 . In the example shown, these roller tools 48 are designed with a change holder 50 fixed to a respective working jacket segment 40, for example by welding, and a change tool 52 in the form of a chisel accommodated in the change holder.

Each of the working jacket segments 40, which are preferably identical to one another and are essentially mirror-symmetrical with respect to a length center, has four connecting regions 54, 56, 58, 60 at an axial distance from one another in the direction of the roll axis of rotation W. In each of these four connection areas 54, 56, 58, 60, the working jacket segments 40 can be fixed to the carrier jacket 34 of the roller body 22, so that a stable connection to the roller body 22 is ensured over the entire axial length of the working jacket segments 40. The connection areas 54, 60 located in the axial end areas 62, 64 of the working jacket segments 40 each form an end connection area 66 or 68, respectively, while the connection areas 56, 58 positioned closer to the mid-length area of the working jacket segments 40 each form a center connection area 70, 72 .

In each of the connecting areas 54, 56, 58, 60, one or more fastening elements 76 are provided on a shell segment inner side 74 of the segment shells 42 facing the carrier jacket outer side 36. The fastening elements 76 provided in the central connection areas 70, 72 are plate-like and are, for example, welded to the segment shells 42 set such that they extend substantially in the circumferential direction and radially inward. In association with these plate-like fastening elements 76 arranged in the central connection areas 70, 72 and extending essentially in the circumferential direction, slot-like fastening element passage openings 78 extending essentially in the circumferential direction are provided in the carrier casing 34. These are, as in figure 5 to recognize, arranged axially directly adjacent to a respective support disk 24, 26 of the support structure 28.

A fastening area 80 is formed on the roller body in association with each such slit-like fastening element reach-through opening 78 or in association with each fastening element 76 to be positioned through such a fastening element reach-through opening 78 of the central connecting regions 70, 72, which fastening element 76 is radially overlapped. In the exemplary embodiment shown, these fastening areas 80 are formed on the radially outer area of a respective carrier disk 24 or 26 and each comprise two openings 82, 84, for example provided with an internal thread - Connecting areas 72, 74 are passed through the fastening element through openings 78 provided axially directly next to the carrier disks 24, 26, so that they protrude radially inwards on an inner side 86 of the carrier jacket. Screw bolts can be passed essentially axially through openings 88, 90 provided in these fastening elements 76 and screwed into the openings 82, 84 of the respectively associated fastening region 80. In this case, for example, plate springs or retaining rings or the like can be positioned between the screw heads and the respective fastening elements 76 in order to make it more difficult or to prevent the screw bolts from coming loose.

One recognizes in figure 5 That the immediately next to a respective carrier disc 24, 26 provided fastener through openings 78 with respect to Carrier disks 24, 26 are each positioned on their side facing away from each other axially, so that the fastening elements 76 of the central connecting regions 70, 72, which are to be fixed by using screw bolts on the carrier disks 24, 26, can be easily attached from the axial outside by means of the screw bolts on the carrier disks 24, 26 can be specified.

The fastening elements 76 provided in the end connection areas 66, 68 are designed like bolts and extend essentially radially inwards on the inner side 74 of the working jacket segment. As in 7 As can be seen, these bolt-like fastening elements 76 are constructed with a bolt foot 94 which is expanded with respect to a bolt shank 92 and which can be fixed by welding to a respective segment shell 42, so that the bolt-like fastening elements 76 of the end connection regions 66, 68 are also stationary on the segment shells 42 are arranged. It can be seen here that in the region of none of the fastening elements 76 in the segment shell 42 carrying them, an opening is formed, for example in order to be able to guide a respective fastening element through a segment shell 42 . As a result, particularly in those areas in which fastening elements 76 are arranged on the segment shells 42, no openings are formed on the outside of the segment shells 42 that is exposed to the outside, for example, that are subject to wear or impair work results. In the exemplary embodiment shown, openings are formed in the segment shells 42 only in the region of the roller tools 48 in order to have access to the changing tools 52 from the inside and thus to be able to detach them from the changing holders 50 . However, these openings are covered on the outside by the change holder 50 so that there is no risk of material penetrating through these openings or there is no risk of wear in the area of these openings.

In association with the bolt-like fastening elements 76 provided in the end connection areas 66, 68, slot-like bolt element penetration openings 78 which are essentially elongated in the circumferential direction are provided in the carrier jacket 34. These in the axial end areas of the Fastener passage openings 78 arranged on the carrier jacket 34 have an extension in a length region 96 located in the middle of their length. The bolt feet 94 of the bolt-like fastening elements 76 to be positioned in these fastening element reach-through openings 78 can be accommodated in these extensions.

As in 7 As can be seen, these bolt-like fastening elements 76 each have a bolt head 98 which is enlarged with respect to the bolt shank 92 on their radially inwardly protruding end regions. The bolt-like fastening elements 76 protrude radially inwards with their respective bolt shank 92 and bolt head 98 on the inside 36 of the carrier casing and are encompassed in these areas by a clamping jaw arrangement 100 assigned to a pair of such bolt-like fastening elements 76 . Each clamping jaw arrangement 100 has two clamping jaws 104, 106 which are axially opposite one another and are to be fixed to one another by screw bolts 102. The two bolt-like fastening members 76 encompassed by such a clamping jaw arrangement 100 are each associated with different working jacket segments 40 that are directly adjacent to one another. As in 4 As can be seen, for this purpose the bolt-like fastening elements 76 arranged in a respective end connection area 66, 68 are arranged close to the longitudinal edges 44 of the segment shells, so that the bolt-like fastening elements 76 arranged on adjacent working jacket segments 40 and encompassed by a common clamping jaw arrangement 110 are mutually exclusive are closer than the two bolt-like fastening elements 76 arranged in a respective end connection area 66, 68 of the working jacket segments 40.

Whenever a pair of clamping jaws 104, 106 grips around such bolt-like fastening elements 76, these rest against the inside 74 of the segment shells of the associated segment shells 42 and thereby generate a force acting on the gripped, bolt-like fastening elements 76 radially inwards, so that the working jacket segments 40 firmly against the carrier shell outside 36 are drawn. For this purpose, the bolt-like fastening elements 76 each have a cone-like shape on their bolt heads 98 shaped wedge surfaces 108 which cooperate with respective wedge surfaces 110 on the jaws 104, 106 to generate this radially inward force.

The foregoing with reference to the Figures 1-9 The soil tillage roller described is characterized in that it has a structure that is basically divided into two system areas. A first of the system areas, namely the roller body, is rotatably supported on a machine frame of a soil tillage machine and forms a carrier for a second of the system areas, namely the working casing. When such a soil tillage roller is in operation, only the outer working surface of the working casing comes into contact with the subsoil to be worked. The roller body is always covered by the working shell, so that the roller body itself, with the essentially unstructured, smooth outside of its carrier shell, is not subject to wear and can be optimally designed for the connection of the working shell. In particular, the carrier jacket can have openings in different length areas and different circumferential areas for this purpose, through which fastening elements for fixing the working jacket segments can be guided. Since all of these openings are covered by the working jacket during operation, there is no risk of contamination entering through these openings, nor is there a risk of these openings being reflected in the substrate to be processed.

In 10 the roller body 20 rotatably supported on the two frame areas about the roller axis of rotation W is shown in longitudinal section. the inside 10 The roller body 22 shown is provided for a compactor roller 20 designed to rotate about the roller axis of rotation W by means of a roller drive motor 112 . A rotor 114 of the roller drive motor 112, which is generally configured as a hydraulic motor, is coupled to coupling elements 120, for example fixed to the inner circumference of the support casing 34, via a disk-like support 116, for example, and a plurality of elastic suspension elements 118 arranged one after the other in the circumferential direction and configured, for example, as rubber buffers, so that under provision an elastic one Suspension of the roller body 22 is suspended with respect to the frame portion 32 rotatably or driven to rotate.

A suspension assembly 122 is substantially rigidly supported on the frame portion 30 . The suspension arrangement 122 carries a plurality of elastic suspension elements 124 which follow one another in the circumferential direction and are also designed as rubber buffers, for example. These are coupled to a coupling element 126 which is, for example, disk-like. Since the suspension arrangement 122 is rigidly coupled to the frame portion 30, the suspension elements 124 and the disk-like coupling element 126 are not rotatable about the axis of rotation W of the roller.

Also provided within the roller body 22 is a vibrating mechanism, generally designated 128 . In the exemplary embodiment shown, this includes two unbalanced masses which are arranged in respective housings 130, 132 and can be rotated about the axis of rotation W of the roller and have a center of gravity eccentric to the axis of rotation W of the roller. Preferably, the centers of mass of the two imbalances are in the same circumferential area. The two unbalanced masses can be driven to rotate about the roller axis of rotation W by an unbalanced mass drive motor 134, which is also designed as a hydraulic motor, for example. A stator portion 136 of the unbalance drive motor 134 is supported on the disk-like coupling member 126 . A rotor area of the unbalance drive motor 134 drives via an in 10 shaft, not shown, the two unbalanced masses for rotation about the axis of rotation W of the roll. Furthermore, a housing-like coupling element 138 is rotationally decoupled with respect to the disk-like coupling element 126 via a bearing (not shown). The housing-like coupling element 138 is also fixed to the carrier disk 24 of the carrier structure 28, so that the roller body 22 is rotatably mounted with respect to the frame area 30 in this area.

It should be noted that a roller body 22 constructed in this way with a vibration mechanism 128 can also be designed as a non-driven roller body. In this case, at the in 10 page shown on the right For example, a rigid coupling of the elastic suspension elements 118 to the frame area 32 is provided, for example via a suspension arrangement, as is shown in the form of the suspension arrangement 122 in association with the left-hand end region in 10 is shown.

The 10 FIG. 12 shows two dividing lines T ₁ , T ₂ with dash-dot lines, which show the system area suspended elastically via the elastic suspension elements 118 , 124 and thus essentially vibration-decoupled from the front end 18 . The unbalance drive motor 134 is also assigned to this system area, for example, while the roller drive motor 112 is essentially rigidly coupled to the frame area 32 of the front end. For the purposes of the present invention, the area delimited by the dividing lines T ₁ , T ₂ can be regarded as that area which defines the roller body 22 or its mass, which is to be considered in particular with regard to vibrational excitation. Alternatively, the entire area rotating during operation could be considered.

During soil tillage operation, the roller body 22 surrounded by the working casing 38 is acted upon by the vibration mechanism 128 and is therefore also periodically accelerated essentially vertically upwards and downwards. A soil tillage roller 20 constructed or operated in this way thus loads the tilled soil not only due to the static load generated due to the mass of the soil tillage roller 20 but also due to the dynamic load generated by the operation of the vibrating mechanism 128 .

The acceleration of the soil tillage roller 20 generated by the operation of the vibration mechanism 128 essentially depends on the mass of the soil tillage roller 20 to be accelerated, the imbalance and the speed of the unbalanced masses, their centers of mass eccentric to the axis of rotation, i.e. to the axis of rotation of the roller, with their radial distance from the axis of rotation W define the unbalance of the vibration mechanism. In order to be able to provide defined working conditions in the tillage operation with such a tillage roller, it is advantageous or desirable to use the defined structure provided vibrating mechanism 128 in a defined manner, so in particular to operate at a defined speed. This operation of the vibrating mechanism and the structure of the vibrating mechanism 128 are matched to the mass of the soil tillage roller to be accelerated by it. If its mass is too low, there is a risk that the soil tillage roller will jump too much when the vibrating mechanism 128 is in operation. If the mass of the soil tillage roller 20 is too great, there is a risk that the acceleration or movement of the soil tillage roller 20 generated by the vibration mechanism 128 in the vertical direction is too small and the desired tillage result cannot therefore be obtained.

For this reason, in the above-described construction of a soil tillage roller 20, the roller body 22 and the working casing 38 surrounding it, with the masses provided by them, are each matched in a defined manner to the operation to be carried out by the vibrating mechanism 128. If, during operation, excessive wear of the working jacket 38 occurs not only in the area of the changing tools 52 carried on it, but also, for example, in the area of the respective segment shells 42, which leads to an excessively large decrease in the mass of the working jacket 38 and thus also the total mass of the roller body 22 and working shell 38 would lead to the existing system, there is the possibility of replacing only a portion of the soil tillage roller, namely the working shell 38, with another working shell that is not worn or is less worn.

Further, in accordance with the principles of the present invention, the working shell 38 described above, which carries a plurality of roller tools 48 each with a change holder 50 and a changing tool 52, is one working shell 38 of a group of, for example, differently configured working shells, all of which are associated with the same roll body 22 can be used. The 11 and 12 show other work jackets 38', 38", which are constructed differently on their working outer side 46', 46" than the work jacket 38 described above. The work jacket 38' is thus the 11 smooth on its working outside 46'. The working jacket segments 40' of this working jacket 38' are thus constructed with segment shells 42' which are essentially smooth or unstructured on their outer sides. Such a working jacket 48' can be used, for example, for compacting asphalt material or for compacting the subsoil to be provided under asphalt material.

the inside 12 The working coat 38' shown is characterized by a heavily structured working outside. For this purpose, roller tools 48" in the form of pad feet 140 are provided on the segment shells 42" of the working jacket segments 40". These can be fixed to the segment shells 42" by welding, for example, or can be carried on them in an exchangeable manner using the interchangeable holders described above.

According to the principles of the present invention, the working jackets 38, 38', 38" are constructed in such a way that they all have the same mass. Regardless of which working jacket 38, 38', 38" is attached to the roller body 22, an overall system with each have the same mass, so that regardless of which of the working casings 38, 38', 38'' is attached to the roller body 22, the operation of the vibration mechanism 28 leads to the same movement behavior or vibration behavior of the soil cultivation roller 20.

It should be pointed out that, for example, the provision of the same masses for the working jackets 38, 38', 38" with and without roller tools can be achieved by the fact that in 11 In the unstructured working jacket 38' shown, i.e. not provided with roller tools, the segment shells 42' are formed with thicker structural material than in the case of the working jackets 38, 38", in which a not inconsiderable part of the total mass is in the form of the segment shells 42, 42" provided on the Roller tools 48, 48 "is present.

It should also be pointed out that, of course, the same structural measures can be or are provided for all work jackets 38, 38', 38" of such a group of work jackets 38, 38', 38" in order to respective working casing segments 40, 40', 40" on the roller body 22. The roller body 22 in the embodiment described above itself does not provide a working outer side that comes into contact with the subsoil to be worked, in particular in the area of its carrier casing 34 thinner construction material can be provided, since on the one hand the carrier jacket 34 is essentially not exposed to any stress leading to wear and tear of the same and on the other hand due to the connection with a respective working jacket 38, 38', 38" with respective segment shells 40, 40', 40" which the Substantially completely cover the carrier jacket 34, an overall thickness of the overall jacket formed in this way is obtained, which takes into account the loads that occur during operation Compaction of asphalt material is used, correspond.

The present invention provides a soil tillage roller system through the combination of a roller body with a plurality of, for example, differently designed working shells, which can be easily adapted by selecting a working shell suitable for a particular processing operation, without it being necessary, for example, to replace an entire soil tillage roller. This tillage roller system thus allows not only a simple adjustment of a tillage roller to different tillage operations, such. B. the compaction of asphalt, the compaction of earth or rock material or the breaking of solid ground such. B. Concrete subsoil without affecting the vibration behavior by changing a work coat is introduced. Rather, there is also the possibility of replacing a working shell with a different or new working shell when wear occurs, so that it can be ensured that the total weight of the combination of roller body and working shell, again regardless of the nature of the working shell, in one taking into account the operation of the vibrating mechanism remains the optimal range of values. Such a value range, in which the total mass of the combination of roller body and working shell and thus the total mass of a soil processing roller can be considered to be in an optimal range, taking into account the operation of the compaction mechanism, and can therefore be regarded as the same or essentially the same in the sense of the present invention Mass in the range of +/- 15%, preferably in the range of +/- 10%, most preferably in the range of +/- 5%, be defined by a working jacket target mass, and / or by a deviation in the range of +/- 15%, preferably in the range of +/- 10%, most preferably in the range of +/- 5%, of an average working jacket mass of these working jackets with masses that are essentially the same as one another. As long as the various working shells to be combined with a roller body to create an overall system with essentially the same mass are within this deviation range in terms of their masses, it is irrelevant whether the mass deviation is due to manufacturing tolerances or whether the output that occurs during operation leads to the mass deviation , a soil cultivation operation can be carried out, with which the desired work result can be achieved, in particular if this is carried out using the vibration mechanism explained above, which is designed for a defined mass of the system to be excited to vibrate in terms of its imbalance and its working frequency. Larger deviations, in particular deviations of more than 20%, lead to such a detuning of the vibration system that efficient operation of the same is no longer guaranteed.

It should also be pointed out that a soil tillage roller system according to the invention can, of course, in addition to several working shells to be combined with a roller body and have essentially the same mass as one another, can also have one or more working shells with masses that differ to a greater extent, for example if a special tillage operation requires a very large or very small mass of the system roller body working shell required.

Claims (10)

1. A soil processing roller system for a soil processing machine, comprising:

   - a roller body (22) rotatable around a roller rotational axis (W) having a carrier structure (28) for rotatable mounting of the roller body (22) and having a carrier jacket (34) supported radially on the outside on the carrier structure (22) with a carrier jacket outer side (36),

   characterized in that the carrier jacket outer side (36) does not provide a working outer side to bring into contact with a soil to be processed, and characterized by a group of working jackets (38, 38', 38"), wherein each working jacket (38, 38', 38") of the group of working jackets (38, 38', 38") is to be positioned abutting the carrier jacket outer side (36) of the roller body (22) for providing a soil processing roller (20), wherein a working outer side (46, 46', 46") of the soil processing roller (20) is provided by a working jacket (38, 38', 38") of the group of working jackets (38, 38', 38") positioned abutting the carrier jacket outer side (36) of the roller body (22), wherein each working jacket (38, 38', 38") of the group of working jackets (38, 38', 38") comprises a plurality of working jacket segments (40, 40', 40") to be arranged in succession in the circumferential direction completely enclosing the roller body (22) annularly, and wherein the group of working jackets (38, 38', 38") comprises at least two working jackets (38, 38', 38") having essentially equal mass to one another.
2. The soil processing roller system according to claim 1, characterized in that in each working jacket (38, 38', 38"), each working jacket segment (40, 40', 40") has a segment shell (42, 42', 42") and on each segment shell (42, 42', 42"), a plurality of fastening elements (76) protruding radially inward is arranged fixed on a segment shell inner side (74) facing toward the carrier jacket outer side (36) of the carrier jacket (34) and/or supported on the carrier jacket outer side (36), and wherein a fastening element passage opening (78) is provided in the carrier jacket (34) in association with each fastening element (76) and each fastening element (76) passing through a fastening element passage opening (78) protrudes on a carrier jacket inner side (86) of the carrier jacket (34) for fixing with respect to the roller body (22).
3. The soil processing roller system according to claim 2,
   characterized in that at least one fastening element (76) is fixedly arranged on each of the segment shells (40, 40', 40") in at least three connecting regions (54, 56, 58, 60) located at a distance to one another in the direction of the roller rotational axis (W).
4. The soil processing roller system according to one of the preceding claims,
   characterized in that the group of working jackets (38, 38', 38") comprises at least one working jacket (38') having working jacket segments (40') providing an essentially unstructured, closed working outer side (46') of the working jacket (38'), and in that the group of working jackets (38, 38', 38") comprises at least one working jacket (38, 38") having working jacket segments (40, 40") providing a structured working outer side (46, 46") of the working jacket (38, 38").
5. The soil processing roller system according to claim 4,
   characterized in that in at least one working jacket (38, 38") having a structured working outer side (46, 46"), roller tools (48, 48") protruding radially outward are arranged on the working jacket segments (40, 40").
6. The soil processing roller system according to one of the preceding claims,
   characterized in that a vibration mechanism (128) for generating a vibrational oscillation applied to the roller body (22) is provided on the roller body (22).
7. The soil processing roller system according to one of the preceding claims,
   characterized in that at least two working jackets (38, 38', 38") are constructed having an equal number of working jacket segments (40, 40', 40").
8. The soil processing roller system according to one of the preceding claims,
   characterized in that at least two working jackets (38, 38', 38") are constructed having segment shells (42, 42', 42") of essentially identical outer circumferential structure to one another.
9. The soil processing roller system according to one of the preceding claims,
   characterized in that a mass of the at least two working jackets (38, 38', 38") having an essentially equal mass to one another is in the range of +/- 15 %, preferably in the range of +/- 10 %, most preferably in the range of +/- 5 % of a working jacket target mass, and/or that a mass of the at least two working jackets (38, 38', 38") having essentially equal mass to one another is in the range of +/- 15 %, preferably in the range of +/- 10 %, most preferably in the range of +/- 5 % of a mean working jacket mass of these at least two working jackets (38, 38', 38") having essentially equal mass to one another.
10. A soil processing machine, comprising at least one soil processing roller system according to one of the preceding claims.

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