EP3023547B1 - Compressor roller for a soil compactor - Google Patents

Description

The present invention relates to a compactor roller for a compactor, by means of which underground can be compacted and / or broken, according to the preamble of claim 1.

From the DE 299 18 625 U1 is a compactor roller for a soil compactor known, which carries on its outer periphery, in particular the outer peripheral surface of a roll shell, a plurality of fixed by welding pad feet. Such compressor rolls are used in particular for compacting cohesive soils, such. As soil, clay or loamy soil used. For other substrates to be processed, such. As rock beds or the like, such with pad feet provided compressor rollers are not suitable due to insufficient crushing property.

From the DE 1 297 042 B a compactor roller for a soil compactor according to the preamble of claim 1 is known.

It is the object of the present invention to provide a compactor roller for a soil compactor, with which an increased variability in use can be achieved with stable support of a roller tool on a changeover holder.

According to the invention this object is achieved by a compressor roller for a soil compactor, comprising on an outer circumference at least one changeover holder for attachment of a roller tool, according to claim 1.

In the compressor roller constructed according to the invention, the am Außenufang same rolling tools to be provided, such. As stamp feet, not permanently, for example by welding, set, but by a changeover assembly that allows the optional attachment and detachment of such rolling tools from the compactor roller. On the one hand, this enables easy replacement of worn roller tools. On the other hand, it is possible to configure and convert one and the same compressor roller, in particular without having to remove it from a soil compactor, for different types of application by exchanging the roller tools and selecting or selecting the respective substrate to be processed. required tool can be taken.

In order to be able to achieve a good processing, in particular compression result, taking into account the variability of the application, it is proposed that a plurality of rows extending around an axis of rotation of the compressor roller is provided with a plurality of swap bodies, wherein in a particularly preferred variant is provided that the changeover holder are offset from one another in the direction of the rotation axis immediately adjacent rows to each other in the row direction.

In order to be able to obtain the holding interaction of a roller tool with the compressor roller in a simple manner, at least one roller tool to be fixed to a change holder comprises a counter holder which can be brought into holding engagement with a change holder and can be locked with respect to the exchange holder.

In this case, a very stable holding interaction is achieved in that the change holder comprises a holder opening and that the counter holder comprises a holder shaft which can be inserted into the holder opening.

A fixation of a roll tool in holding engagement with a Change holder standing counter-holder can be obtained in a simple manner that the counter-holder can be locked by means of a locking member to the change holder. It should be noted that a respective provided on the compressor roller change holder, a support shaft and a locking member each provide a change holder assembly in which, especially when an exchange of a roller tool takes place, also an exchange of each used counter-holder, possibly also the Arretierorgans, takes place.

In a simple to implement, but nevertheless stable acting design can be provided that the locking member comprises at least one locking pin, wherein at the change holder and the counter holder when inserted into the holder opening holder shaft at least partially aligned Arretierstiftaufnahmeaussparungen are provided, the locking stability even further characterized can be improved, that the locking member is U-shaped and provides two locking pins.

In the case of the compactor roller according to the invention, both bits, for example so-called round-shank bits, and pad feet can be used as the respective roller tools. In particular, when a padfoot is used as a roller tool, it is advantageous to ensure that it is secured against rotation and thus can be maintained in a defined positioning on the outer circumference of the compacting roller. For this purpose, it can be provided, for example, that a padfoot used as a roller tool comprises a substantially curved contact area adapted to the curved outer circumference of the compressor roller.

Only roller tools of the same type of tool can be provided on the compressor roller. Alternatively, roller tools of at least two different types may be provided. In this case, it is advantageous for achieving an optimal processing result, if, in at least one row, rolling tools of one type of tool and rolling tools of another type of tool alternate in a periodic pattern, preferably alternately.

For reasons of stability, it is further provided according to the invention that at least one change-over holder has a connection region preferably adapted to the curved outer circumference of the compressor roller for connection to an outer peripheral surface of the compressor roller and a supporting region designed to support a roller tool and spaced from the outer peripheral surface of the compressor roller, wherein preferably at least one changeover holder from the connection region to the support region is designed to be tapered.

In this case, if the at least one changeover holder has two circumferential sides oriented essentially in the circumferential direction of the compressor roller and two axial sides oriented essentially in the direction of a compressor roller axis of rotation, wherein preferably the peripheral sides are inclined at a greater angle than the axial sides, then the generally created device can be used Rectangular circumferential contour of the at least one swap holder to take into account the fact that in the tillage process this oriented in the circumferential direction of the compactor roller executed movement, so that a uniform processing result can be achieved regardless of the direction of movement.

In order to be able to provide at least one change holder also a contribution to tillage, it is further proposed that between the connection region and the support region, the at least one change holder has a tillage area in contact with this attached roll tool with soil to be processed in contact. In this case, the interaction of the soil cultivation area can be reinforced with soil to be processed, that at least a peripheral side in the soil cultivation area at least one soil cultivation projection is provided. If it is thereby provided that the at least one tillage projection has a projection height increasing from the connection region to a maximum projection height and / or has a projection height decreasing from a maximum projection height towards the support region, the at least one tillage projection acquires a generally tine-like configuration, which influences its action processing soil, for example, to be crushed rock reinforced.

For stable support of a roller tool attached to the at least one change-over holder, it is provided according to the invention that in the support region the holder opening is surrounded by a first support surface on the change-over holder that is substantially orthogonal to a radial direction with respect to a compressor roller axis of rotation. It is then advantageously provided on at least one roller tool a supportable on the first support surface first Gegenabstützbereich.

In order to obtain a stable against rotation of a roll tool holder on the changeover holder, it is proposed that in the support region a Formschlusseingriffsformation is provided for producing a positive engagement with a counter-form-fitting engagement formation on a roll tool.

For supporting interaction with a roller tool a plurality of mutually angled second support surfaces is provided in the support area around the holder opening around the change holder, each second support surface is provided in the abutment region of a peripheral side to an axial side. Due to the angular arrangement of the second support surfaces with respect to each other and preferably also to a radial direction with respect to a compressor roller axis of rotation or the circumferential or axial sides is due to the totality of these second support surfaces a generally non-rotationally symmetrical and a Circumferential Formschluss guaranteeing configuration obtained, which prevents rotation of a roller tool on these second support surfaces.

This form-fitting interaction between the at least one change holder and a roll tool to be attached thereto can be further enhanced by providing at least one third support surface at least one axial side between two second support surfaces in the support region and / or at least one circumferential side between two in the support region second support surfaces is provided at least one angled relative thereto fourth support surface. In particular, it is possible, the second support surfaces and / or the third support surfaces and / or the fourth support surfaces are angled relative to the first support surface. Also z. B. the second support surfaces z. B. together with the third and / or fourth support surfaces surrounding the first support surface like a ring. This ring-like configuration of the second support surfaces, possibly the third support surfaces and possibly the fourth support surfaces allows a force acting on a roller tool uniformly in the change holder introductory, however, due to the facet-like arrangement of the support surfaces rotation of a roller tool reliably preventing attachment to the change holder.

For the interaction of a roller tool with these different support surfaces can be provided that at least one roller tool at least a second Gegenabstützbereich for support on a second support surface and / or at least a third Gegenabstützbereich for support on a third support surface and / or at least a fourth Gegenabstützbereich for support to at least having a fourth support surface. Depending on the configuration of a roller tool, it may thus be provided, for example, that this also interacts with the change holder in the area of the second support surfaces, also for generating an anti-rotation lock. at In another embodiment, alternatively or additionally, the second and / or third support surfaces can also be included in the generation of this support interaction or rotational securing form closure.

In order to avoid as far as possible the occurrence of disturbing surfaces substantially affecting the processing efficiency in the soil cultivation process, which can be processed to a ground or ground to be processed, it is proposed that a transition region of at least one peripheral side and / or at least one axial side and / or the first support surface or / and at least one second support surface and / or at least one third support surface and / or at least one fourth support surface is chamfered or rounded to a respective other side and / or surface adjacent thereto.

For stable connection of a roller tool to a change holder can be provided that on a inner circumference of the holder opening a preferably ringnutartig formed first Arretierorganaufnahmeöffnung is provided and / or that on an outer circumference of the holder shank a preferably ringnutartig formed second Arretierorganaufnahmeöffnung is formed. In this case, the locking force between the change holder and a roll tool to be attached thereto can be transmitted, for example, in that in the first Arretierorganaufnahmeöffnung or the second Arretierorganaufnahmeöffnung a for locking a roll tool on a change holder in the other Arretierorganaufnahmeöffnung latched, preferably formed ring-like locking member is added.

In particular, if the formations serving for locking, although they prevent detachment due to their essentially rotationally symmetrical design, can in principle not provide any rotation, but nevertheless a roller tool in a defined manner Positioning and rotation against the change holder to be held, it can be provided that on a provided on a roller tool holder shank a receiving opening for an engaging in an anti-rotation recess on the changeover holder to be positioned anti-rotation member is provided.

Furthermore, the structure may be such that at least one changeover holder preferably defines an exchange holder interior with an outer circumferential surface of the compressor roller, the changeover holder interior being open on at least one axial side oriented substantially in the direction of a compressor roller axis of rotation. It is z. B. the change holder is not formed as a solid, full-surface on the outer peripheral surface of the compressor roller fitting block of material, but defines an interior space which is accessible to an axial side. In this way, material is not only saved in the structure of the swap holder, but it is also possible to act through a disassembly tool on a roll holder mounted on the change tool and to solve this from the change holder.

To facilitate this interaction of a disassembly tool with a roller tool, it is proposed that when mounted on a change tool roll tool provided on the roller tool holder shaft protrudes through an opening provided on the holder holder opening into the exchange holder interior. The over the holder opening in the exchange holder interior projecting end of the holder shaft is thus exposed for engaging a disassembly tool, so that by pressing the holder shaft from the holder opening, for example, a latched into respective Arretierorganaufnahmeöffnungen locking member is released from one of these openings and the roller tool can be removed from the removable holder ,

In a further advantageous embodiment variant, it is proposed that the holder opening provided on the changeover holder has an in the Essentially in a radial direction with respect to a compressor roller axis of rotation oriented opening longitudinal axis and that when mounted on the change tool roll tool a Halterschaftlängsachse of the roll tool provided on the holder shaft is oriented substantially in the radial direction. This orientation of a holder opening or a holder shaft provided on a roller tool simplifies, on the one hand, the disassembly procedure explained above, as well as the assembly process. On the other hand, it is ensured that regardless of the direction of movement of a compressor roller same force interaction characteristics between the holder shaft and this receiving holder opening can be achieved and thus equally independent of the direction of movement for a stable uniform support of a roll tool on the removable holder can be provided.

The present invention further relates to a soil compactor with at least one compressor roller constructed according to the invention.

Fig. 1

ein in perspektivischer Darstellung eine bei einem Bodenverdichter einsetzbare Verdichterwalze mit einer Vielzahl von am Außenumfang derselben vorgesehenen Walzenwerkzeuge einer Art;

Fig. 2

eine Teil-Querschnittansicht der Verdichterwalze der Fig. 1;

Fig. 3

eine nicht erfindungsgemäß aufgebaute Wechselhalteranordnung mit einem Walzenwerkzeug, einem Wechselhalter und einem Arretierorgan in Explosionsdarstellung;

Fig. 4

eine der Fig. 1 entsprechende Darstellung einer Verdichterwalze mit Walzenwerkzeugen einer anderen Walzenwerkzeugart;

Fig. 5

eine Teil-Querschnittdarstellung der Verdichterwalze der Fig. 4;

Fig. 6

eine nicht erfindungsgemäß aufgebaute Wechselhalteranordnung mit einem Walzenwerkzeug, einem Wechselhalter und einem Arretierorgan in Explosionsdarstellung;

Fig.7

eine weitere der Fig. 1 entsprechende Darstellung einer Verdichterwalze mit Walzenwerkzeugen zweier Werkzeugarten am Außenumfang;

Fig. 8

eine Teil-Querschnittdarstellung der Verdichterwalze der Fig. 7;

Fig. 9

eine nicht erfindungsgemäß aufgebaute Wechselhalteranordnung mit einem Walzenwerkzeug, einem Wechselhalter und einem Arretierorgan in Explosionsdarstellung;

Fig. 10

eine nicht erfindungsgemäß aufgebaute Wechselhalteranordnung mit einem Walzenwerkzeug, einem Wechselhalter und einem Arretierorgan in Explosionsdarstellung;

Fig. 11

eine der Fig. 1 entsprechende perspektivische Darstellung einer erfindungsgemäßen Ausgestaltungsart einer Verdichterwalze mit einer Vielzahl von am Außenumfang derselben vorgesehenen Walzenwerkzeugen;

Fig. 12

eine Teil-Querschnittansicht der Verdichterwalze der Fig. 11;

Fig. 13

eine Seitenansicht eines bei der Verdichterwalze der Fig. 11 eingesetzten erfindungsgemäß aufgebauten Wechselhalters, betrachtet in Richtung einer Verdichterwalzendrehachse, mit einem daran getragenen Walzenwerkzeug einer Art;

Fig. 14

den Wechselhalter der Fig. 13 in perspektivischer Ansicht;

Fig. 15

den Wechselhalter der Fig. 13 in perspektivischer Ansicht ohne Walzenwerkzeug;

Fig. 16

eine andere perspektivische Ansicht des Wechselhalters der Fig. 13;

Fig. 17

eine der Fig. 13 entsprechende Ansicht ohne am Wechselhalter getragenem Walzenwerkzeug;

Fig. 18

eine Seitenansicht des Wechselhalters der Fig. 13, betrachtet in Umfangsrichtung;

Fig. 19

den Wechselhalter der Fig. 17, betrachtet in Blickrichtung XIX in Fig. 17;

Fig. 20

den Wechselhalter der Fig. 17, betrachtet in Blickrichtung XX in Fig. 17;

Fig. 21

eine Teil-Axialansicht der Verdichterwalze der Fig. 11 bei Durchführung eines Bodenbearbeitungsvorgangs;

Fig. 22

die Verdichterwalze der Fig. 11 mit anderen an den Wechselhaltern getragenen Walzenwerkzeugen;

Fig. 23

eine Teil-Querschnittansicht der Verdichterwalze der Fig. 22;

Fig. 24

eine Ansicht eines Wechselhalters der Verdichterwalze der Fig. 22 mit einem daran angebrachten Walzenwerkzeug einer anderen Art, betrachtet in Richtung einer Verdichterwalzendrehachse;

Fig. 25

den Wechselhalter mit dem daran getragenen Walzenwerkzeug der Fig. 24 in perspektivischer Ansicht;

Fig. 26

verschiedene mit einem Wechselhalter zu kombinierende Walzenwerkzeuge;

Fig. 27

eine Vorgehensweise zur Montage eines Walzenwerkzeugs an einem Wechselhalter;

Fig.28

eine Vorgehensweise zur Demontage eines Walzenwerkzeugs von einem Wechselhalter.

The invention will be described below with reference to the attached figures. It shows:

Fig. 1

a perspective view of a usable in a soil compactor compressor roller with a plurality of provided on the outer circumference of the same rolling tools of a kind;

Fig. 2

a partial cross-sectional view of the compressor roller of Fig. 1 ;

Fig. 3

a non-inventively constructed change holder assembly with a roller tool, a change holder and a locking member in an exploded view;

Fig. 4

one of the Fig. 1 corresponding representation of a compressor roller with roller tools of another type of roller tool;

Fig. 5

a partial cross-sectional view of the compressor roller of Fig. 4 ;

Fig. 6

a non-inventively constructed change holder assembly with a roller tool, a change holder and a locking member in an exploded view;

Figure 7

another one Fig. 1 corresponding representation of a compressor roller with roller tools of two types of tools on the outer circumference;

Fig. 8

a partial cross-sectional view of the compressor roller of Fig. 7 ;

Fig. 9

a non-inventively constructed change holder assembly with a roller tool, a change holder and a locking member in an exploded view;

Fig. 10

a non-inventively constructed change holder assembly with a roller tool, a change holder and a locking member in an exploded view;

Fig. 11

one of the Fig. 1 corresponding perspective view of a design type of a compressor roller according to the invention with a plurality of rolling tools provided on the outer circumference thereof;

Fig. 12

a partial cross-sectional view of the compressor roller of Fig. 11 ;

Fig. 13

a side view of one of the compressor roller of Fig. 11 used according to the invention constructed exchange holder, viewed in the direction of a compressor roller axis of rotation, with a roll tool of a kind carried thereon;

Fig. 14

the change holder of Fig. 13 in perspective view;

Fig. 15

the change holder of Fig. 13 in perspective view without roller tool;

Fig. 16

another perspective view of the change holder of Fig. 13 ;

Fig. 17

one of the Fig. 13 corresponding view without roller tool worn on the change holder;

Fig. 18

a side view of the change holder of Fig. 13 , viewed in the circumferential direction;

Fig. 19

the change holder of Fig. 17 , viewed in the direction XIX in Fig. 17 ;

Fig. 20

the change holder of Fig. 17 , viewed in the direction XX in Fig. 17 ;

Fig. 21

a partial axial view of the compressor roller of Fig. 11 when performing a tillage operation;

Fig. 22

the compressor roller the Fig. 11 with other roll tools carried on the exchangeable holders;

Fig. 23

a partial cross-sectional view of the compressor roller of Fig. 22 ;

Fig. 24

a view of a change holder of the compressor roller of Fig. 22 with a roll tool of a different type attached thereto, viewed in the direction of a compressor roll axis of rotation;

Fig. 25

the change holder with the roller tool worn thereon Fig. 24 in perspective view;

Fig. 26

various roll tools to be combined with a change holder;

Fig. 27

a procedure for mounting a roller tool to a changeover holder;

Figure 28

a procedure for disassembly of a roll tool from a change holder.

In Fig. 1 is a usable in a soil compactor compressor roller generally designated 10. The compressor roller 10 rotatable in the compressor operation about a roller axis A comprises a cylinder-like roller shell 12. On an outer peripheral surface 14 of the roller shell 12, a plurality of roller tools 16 is provided. These roller tools 16 are in the in the Fig. 1 to 3 illustrated embodiment in the form of chisels 18, in particular so-called round shank chisel provided.

The roller tools 16 and chisels 18 are attached to the compressor roller 10 by means of the respective below with reference to FIGS Fig. 2 and 3 Can be specified in detail described Welchselhalteranordnungen 20.

The changeover holder arrangements 20 comprise a removable holder 22 made of metal material with its connection region 76 on the outer peripheral surface 14 of the roll shell 12, for example by welding, with a holder opening 24 formed therein and radially oriented, for example, with respect to the roll axis A and radially outwardly open holder opening 24. On the roll tools 16, in the example shown, the chisels 18, is a respective holder shaft 26th formed, the outer peripheral contour of which corresponds to the holder opening 24, that is circular in the example shown. The holder shaft 26 forms a counter-holder 28, which can be brought into engagement by inserting it into the holder opening 24 of the interchangeable holder 22.

In a side facing away from the outer peripheral surface 14 end portion of the change holder 22 forms a support portion 72 with a preferably around the holder opening 24 annularly rotating first support surface 80. This is preferably substantially planar and can be orthogonal to a radial axis with respect to the roll axis A radially. For fixing the chisel 18 to the change holder 22, the holder shank 26 is inserted, for example, so far into the holder opening 24 until a first counter-support region 97 bears against the chisel head 46 on the first support surface 80. The forces occurring in the tillage operation, which load the bit 18 in the direction of the change holder 22, can thus be substantially absorbed by supporting the Gegenabstützbereichs 97 on the first support surface 80.

One recognizes in Fig. 3 in that a groove-like recess 30, which is preferably circumferential in the circumferential direction, is provided in the holder shank 26. When completely inserted into the holder opening 24 holder shaft 26, this groove-like recess 30 is located in a longitudinal region of the holder opening 24, in which two formed in the removable holder 22 hole-like recesses 32, 34 are positioned. These hole-like recesses 34 lie approximately in a plane orthogonal to an opening longitudinal axis L _{1 of} the holder opening 24 and open into the holder opening 24 or intersect it.

A substantially U-shaped locking member 36 forms with its two U-legs locking pins 38, 40, which can be inserted into the recesses 32, 34. When fully inserted into the holder opening 24 holder shaft 26, the groove-like recess 30 is in alignment the holder opening 24 open recesses or holes 32, 34, so that upon complete insertion of the locking member 36, the locking pins 38, 40 pass through the recesses 32, 34 and engage in the groove-like projection 30. In order to lock the locking member 36 to the change holder 22, the locking member 36 may be formed in the region of the locking pins 38 with, for example, curved holding portions 42, 44 whose curvature is at least approximately adapted to the curvature of the groove-like recess 30, so that these holding portions 42nd , 44 in cooperation with the groove-like recess 30 produce a locking action. Of course, other fixations or detent formations can be used to secure the locking member 36 against loss to change holder 22 and / or on the anvil 28.

By referring to the Fig. 3 As described structure of a change-holder assembly 20, it is possible to set in a simple manner roller tools 16 on the compressor roller 10 and also remove it again. In the embodiment of the roller tools 16 as a chisel 18 with a chisel head 46 and provided therein, for example, carbide built chisel tip 48, such assembly / disassembly can be done to exchange worn chisel 18. Also chisels of different geometry can of course be adapted to the existing application to the compressor roller 10.

How to get in Fig. 1 recognizes the changeover holder 22 are arranged on the outer circumference of the compressor roller 10 in a plurality of annularly about the roller axis A extending rows 50. In this case, the change holders 20 provided in the directly adjacent rows 50 in the axial direction are offset in the row direction, ie in the circumferential direction with respect to one another, so that a very dense packing of the roller tools 16 is achieved while nevertheless maintaining spacing therebetween.

The 4 to 6 show a compacting roller 10 with the foregoing described construction, in which 18 are provided as roller tools 16 instead of the above-explained chisel ram feet 52. How the particular Fig. 6 this can be seen above with reference to the Fig. 3 explained embodiment of a changeover holder assembly 20 are used identically also for fixing the Stampffüße 52. For this purpose, on the inside of the stamp feet 52 designed as hollow bodies, for example, by welding the holder shaft 26 serving as a counter-holder 28 is determined. By inserting the holder shaft 26 into the provided in an associated change holder 22 holder opening 24 and subsequent locking by means of the locking member 36, a respective padfoot 52 can be set on the outer circumference of the compressor roller 10. Due to the foregoing with respect to the Fig. 1 explained arrangement of the change holder 22 on the outer circumference of the compressor roller 10 in respective rows 50 results in a corresponding row-like configuration of the outer circumference of the compressor roller 10 now provided Stamp feet 52.

The stamp feet 52 are constructed with an end face 54 positioned in the direction away from the outer peripheral surface 14 of the roll mantle 12, two circumferentially oriented peripheral sides 56, 58 and two axial sides 60, 62 oriented in the axial direction. The peripheral sides 56, 58 include a greater angle of inclination to the end face 54, than the axial sides 60, 62. At their respective end face 54 opposite and to be brought into contact with the outer peripheral surface 14 bearing areas 64 are the Stampffüße 52 with a to the curvature formed of the roll shell 12 and the outer peripheral surface 14 adapted curved structure. This arched structure can be achieved by a corresponding circular shaping of the end region of the two axial sides 60, 62 or a segment-like, but in their entirety approximately circularly arched structure. In this way, it is ensured that the stamping feet 52 locked by means of the respective changeover holder arrangements 20 to the compacting roller 10 are also secured against rotation, although the respective ones Holder shanks 26 in the associated holding openings 24 due to the cross-sectional geometry and also due to the locking action of the locking members 36 are basically rotatable. This rotation in turn is advantageous for the use of chisels as rolling tools, since thus a one-sided wear of the same can be avoided. Thus, it is possible, with one and the same change holders 22 a variety of roller tools 16 with different demands placed on these, so on the one hand rotation, on the other hand, protection against rotation, can be locked.

In order to be able to ensure this variability, ie to be able to provide roller tools of various types and thus also different dimensions on the outer circumference of the compressor roller 10, it is also advantageous to have the change holders 22 in the circumferential direction as well as in the axial direction with such a distance to respectively immediately adjacent exchangeable holders 22 to provide that also in the respective direction largest dimensioned roller tools can be attached to immediately adjacent change holders 22. This means in particular that the distance between two rows 50 in the axial direction should correspond to at least half the width of a respective padfoot measured between the two axial sides 60, 62.

At the in the 4 to 6 As shown embodiment, the locking members 36 in the associated recesses 32, 34, 30 to move, it is advantageous to at least one of the axial sides 60, 62 with an opening 66 to design, through which the locking member 36 can be inserted and withdrawn.

The Fig. 7 to 10 illustrate a design example in which distributed to one and the same compressor roller 10 over its outer circumference roll tools 16 of different types of tools are provided. It is both the foregoing with reference to Fig. 1 already explained chisel 18, as well as the foregoing with reference to the Fig. 4 explained Stamp feet 52 provided. In particular, the arrangement may be such that in a respective row 50, a periodic sequence pattern of Walzenwerkzeugen 16 of a type and rolling tools 16 of the other type is provided. One recognizes in particular in Fig. 7 an alternating alternation of chisels 18 and pad feet 52.

With the in the Fig. 7 to 10 illustrated structure, in which again the above-described change holder assemblies 20 are used, both in conjunction with the pad feet 52, as well as in connection with the chisels 18, can further be provided, for example, that the chisel 18 has a greater projection height over the Outer circumferential surface 14 of the roll shell 12, as the stamp feet 52. Here, for example, a projection height in the new state of the bit 18 can be selected in the range of more than 10 mm. This ensures that the chisel heads 46 engaging beyond the end faces 54 can adequately unfold their abrasive or comminuting action despite the presence of the pad feet 52.

The FIGS. 11 and 12 show a usable in a soil compactor compressor roller with respect to the Wechselhalteranordnungen structure according to the invention. Components which correspond to the above-described components in terms of design are denoted by the same reference numeral with the addition of an appendix "a".

Also at the in Fig. 11 Compressor roller 10a shown, a plurality of Wechselhalteranordnungen 20a is provided on the outer peripheral surface 14a of the cylinder-like roll shell 12a. Again, vorteihafterweise the arrangement is such that rows 50a are formed by circumferentially successive changeover holder assemblies 20a, wherein the changeover assemblies 20a of in the direction of the compressor roller axis or roll axis A adjacent rows 50a in the circumferential direction to each other, for example Approximately half the circumferential extent of such a changeover assembly 20a are offset from each other. This results in a very uniform coverage of the outer peripheral surface 14a of the roll shell 12a, so that a very intensive tillage can take place, in which a direct contact of the peripheral surface 14a with the soil to be processed can be largely avoided. Rather, this contact is formed between the below-explained rolling tools and the soil to be processed, so that an intense pressure can be exerted on them.

In the in the FIGS. 11 and 12 shown construction of a compressor roller 10a are on the change holders 22a of the changeover holder assemblies 20a each chisel 18a, here again for example formed as a round shank chisel mounted. The structure of these change-over tool assemblies 20a, which comprise, for example, bits 18a, in particular also the change-over holders 22a thereof, will be described below with reference to FIGS Fig. 13 to 20 described in detail.

The change holder 22a has in the in Fig. 19 or 20 recognizable top view or radial view an approximately rectangular outer peripheral contour, and has in the example in the Fig. 13 and 17 recognizable side view, considered here in the direction of the roll axis A, an approximately trapezoidal outer peripheral contour.

The changeover holder 22a is to be positioned with a connection portion 70a adjacent to the outer peripheral surface 14a of the roll shell 12a, and is advantageously fixed by welding to its attachment portion 70a on the outer peripheral surface 14a. In this case, an advantageously around the rectangular peripheral contour of the connection region 70a circumferential weld can be formed. In its adjacent to the outer peripheral surface 14a of the roll shell 12a to be positioned surface portion 71 a, the connection region 70a to the circularly curved outer peripheral contour be adapted to the roll shell 12a in order to achieve the largest possible area and thus the most uniform possible load distribution.

Starting from the connection region 70a, the changeover holder 22a has a tapered contour in the direction away from the outer circumferential surface 14a and onto a support region indicated generally at 72a. In this case, both the circumferentially oriented circumferential sides 56a, 58a are angled relative to each other, as well as the two substantially in the direction of the roll axis A oriented axial sides 60a, 62a. From a comparison of FIGS. 17 and 18 It can be clearly seen that the two circumferential sides 56a, 58a enclose a larger angle to one another than the two axial sides 60a, 62a. It should be pointed out here that the peripheral sides 56a, 58a and also the axial sides 60a, 62a do not necessarily have to comprise surfaces which extend in a straight line in a straight line. As the FIGS. 17 and 18 clearly show this, the changeover holder 22a on its peripheral sides 56a, 58a or / and its axial sides 60a, 62a arched, for example, concave, formed.

As explained in more detail below, the change holder 22a is exposed with a lying between the connection region 70a and the support portion 72a tillage portion 74a even when mounted on the change holder 22a roller tool 16a for contact with the soil to be processed. In contrast to the example in the FIGS. 5 and 6 In the embodiment shown in which the changeover holder is substantially completely covered by a roll tool carried thereon, the change holder 22a, regardless of which roll tool is carried thereon, comes into contact with the ground to be processed and thus contributes to a more intensive one Kontakt improved processing result.

At its two circumferential sides 56a, 58a, the changeover holder 22a has one each for increased interaction with the soil to be processed ribbed or tine-shaped tillage projection 78a. This protrudes in the circumferential direction on the respective peripheral side 56a or 58a and has approximately in its mid-range region, viewed in the extension direction from the connection region 70a toward the support region 72a, a maximum projection height. The projection height decreases both to the connection area 70a, and toward the support portion 72a, wherein, as the Fig. 17 For example, clearly shows, here also a substantially curved, advantageously concave contour of the respective tillage projection can be provided.

The interaction of such an interchangeable holder 22a or a chisel 18a supported thereon as a roller tool 16a with a base B to be processed is shown in FIG Fig. 21 illustrated. There, it can be seen that a chisel 18a moving toward the bottom B during the advancement downwards comes into contact with the soil B to be processed, in particular rocks lying there, and this can break under load. Correspondingly, the machining projections 78a can also come into contact with rocks and produce an additional comminution effect.

In its support region 72a, the changeover holder 22a has the holder opening 24a which serves to fix a respective roller tool. This is advantageously formed or oriented in the changeable holder 22a such that its opening longitudinal axis L ₁ extends substantially radially with respect to the roll axis A when the change holder 22a is fixed on the outer peripheral surface 14a.

Surrounding the holder opening 24a is a first support surface 80a. This first support surface 80a is preferably oriented such that it leads to a line extending radially with respect to the roll axis A, that is to say a radial direction which essentially also corresponds to the orientation of the opening longitudinal axis L ₁ in FIG Fig. 16 is substantially orthogonal stands. In this case, for example, the first support surface 80a may be substantially planar. Even a slight curvature, in particular convex curvature, the first support surface 80a is basically not excluded.

In the support region 72a, in each case where a peripheral side 56a or 58a adjoins an axial side 60a or 62a, second support surfaces 82a are formed. These four relative to the opening longitudinal axis L _{1 in} pairs diametrically opposed second support surfaces 82a are angled with respect to each other and are also angled to a radial direction, as well as the first support surface 80a and the peripheral sides 56, 58a and axial sides 60a, 62a, to which they respectively adjoin.

At the two axial sides 60a, 62a, third support surfaces 84a are provided in each case between the two second support surfaces 82a in the support region 72a. Again, these are angled with respect to each other with respect to the second support surfaces 82a and to the first support surface 80a to which they abut. Fourth support surfaces 86a are provided on the peripheral sides 56a, 58a between the two adjacent second support surfaces 82a. These may also be angled with respect to each other, with respect to the second support surfaces 82a and with respect to the first support surface 80a.

The second to fourth support surfaces 82a, 84a, 86a can each be formed as flat surfaces, so that the overall result is a facet-like overall contour of the mutually adjacent support surfaces. As can be seen in particular in connection with the fourth support surfaces 86a, but in principle also a curved configuration of such support surfaces is possible.

In the case of the change holder 22a, the processing result is substantially parallel to the ground to be processed To keep interfering disturbing surfaces as small as possible, is advantageously everywhere where support surfaces or sides adjacent to each other, the changeover holder 22 a rounded or chamfered formed. Also in the support region 72a results from the annular in the circumferential direction, the first support surface 80a surrounding the second to fourth support surfaces 82a, 84, 86a a dome-shaped or curved overall arrangement, which largely avoids the emergence of Störflächen.

The change holder 22a is designed with its trapezoidal contour in axial view in such a way that it has the form of an expanded "U" with two alternating holder legs 88a each providing a partial region of the attachment region 70a and a central region 90a connecting the two holder legs 88a and also providing the support region 72a. The two changer holder legs 88a and the central region 90a thus define, together with the outer peripheral surface 14a of the roll mantle 12a, a changeable holder interior 92a, which is open, for example, on both axial sides 60a, 62a. On the underside of the central region 90a facing the outer peripheral surface 14a, for example, an anti-rotation recess 94a extending from the axial side 60a to the axial side 62a and also passing over the holder opening 24a and open in the direction of the outer peripheral surface 14a is provided. An anti-rotation device explained below can be positioned engaging in this anti-rotation recess 94a and prevent rotation of a roller tool 16a carried on the change-over holder 22a.

To determine the example in the FIGS. 13 and 14 Also recognizable and designed as a chisel 18a roller tool 16a on the change holder 22a of the chisel 18a provided and effective as a counter-holder 28a holder shaft 26a is inserted into the holder opening 24a. A longitudinal axis L _{2 of} the holder shaft 26a corresponds in this positioning then substantially also the longitudinal axis L _{1 of} the holder opening 24a and is also oriented in the radial direction with respect to the roll axis A.

The chisel 18a can be inserted so far into the holder opening 24a with its holder shank 26a until the chisel head 46a comes into abutment with the first support surface 80a with a counter support region 97a protruding radially outward with respect to the holder shank longitudinal axis L ₂ via the holder shank 26a. On the inner peripheral surface of the holder opening 28a, a groove-like first locking organ receiving opening 98a can be formed radially inwards with respect to the longitudinal axis L _{1 of the} same, preferably ring-like, circumferential. Similar, as for example in Fig. 10 can be clearly seen, on the outer circumference of the holder shaft 26a a radially outwardly with respect to the longitudinal axis L _{2 of} the holder shaft 26a open, groove-like and preferably circumferentially completely encircling second Arretierorganaufnahmeöffnung 100a be formed. This second Arretierorganaufnahmeöffnung receiving a ring-like locking member 102a is also, for example, in Fig. 26 at the various roller tools shown there 16a and their holder shafts 26a recognizable.

When inserting the holder shank 26a into the holder opening 24a, this locking member 102a designed as a locking ring or clip ring can be pressed further into the second locking member receiving opening 100a until, during the insertion movement, the two locking organ receiving openings are aligned with one another and the locking member 102a projects radially outwards into the first Arretierorganaufnahmeöffnung on the changeover holder 22a engages. In order to enable or support this radial compression of the locking member 102a, the holder opening 24a may be formed in its abutment region with the first support surface 80a with an insertion bevel 103a. Thus, the roller tool 16a and the chisel 18a is locked against unintentional release from the changeover holder 20a. The particular occurring when driving over ground very large, the chisel 18a in the direction of the Changeover holders 22a to be loaded forces are intercepted by supporting the Gegenabstützbereichs 97a on the first support surface 80a.

If in addition to the locking action of the locking member 102a securing the chisel 18a from being moved out of the change holder 22a, rotation of the chisel 18a is also to be avoided, an opening 104a may be formed in its holder shank 26a which cooperates with the holder shank 26a fully inserted into the opening 24a the anti-rotation recess 94a is aligned in the removable holder 22a. An example, pin-like trained anti-rotation member can then be introduced from an axial side 60a or 62a forth through the anti-rotation recess 94a into the opening 104a and held there, for example by clamping action. A rotation of the bit 18a can thereby be largely avoided. This is particularly advantageous when the bit 18a is formed in its intended for processing a substrate tip region with non-rotationally symmetrical profile.

The FIGS. 22 to 25 show the use of a compressor roller 10a with the above with particular reference also to the Fig. 11 described construction in conjunction with used as roller tools 16a stamp feet 52a. These cooperate to provide the changeover holder assemblies 20a with the exchangeable holders 22a described in detail above with regard to their construction. As the FIGS. 24 and 25 clearly show this, the tamping feet 52a used as roller tools 16a together with the exchangeable holders 22a, in particular the tillage area 74a of the same not covered by the tamping feet 52a, result in an assembly effective in their entirety as a tamping foot. In this case, provision may in particular be made for circumferential sides 56a 'and 58a of a respective padfoot 52a to continue the circumferential sides 56a, 58a of a changeable holder 22a, for example with a similar curved profiling or angled orientation relative to one another. Corresponding For example, axial sides 60a 'and 62a' may continue the axial sides 60a and 62a of the tool holder 22a.

For fixing to a respective change holder 22a, such a pad foot 52a has a holder shank 26a which, similarly as in FIG Fig. 6 is indicated, extending from the respective pad foot 52a down and the holder opening 24a in the change holder 82a can be arranged passing through. It can by a example, also in Fig. 26 recognizable locking member 102a again a locking action against detachment of the padfoot 52a can be achieved.

In order to prevent a rotation of the padfoot 52a on the exchangeable carrier 22a, it is designed such that it can enter into a rotation-preventing positive engagement with the various supporting surfaces formed on the supporting region 72a, in particular the second and third supporting surfaces 82a, 84a. Thus, the second to fourth support surfaces 82a, 84a, 86a or interacting with a padfoot 52a and effective for rotation assurance of these support surfaces form a positive engagement formation 105a, while the padfoot 52a with its below-mentioned technical measures a counter-positive engagement formation 107a provides.

For interaction with the second support surfaces 82a, the padfoot 52a is in its four corner regions, ie each in the transition region between one of the peripheral sides 56a ', 58a' to one of the axial sides 60a 'and 62a', extending in the direction of the holder shaft 26a extending second Gegenabstützbereichen 106a trained. These are shaped to have complementary surface areas to the inclined second support surfaces 82a, which surfaces in their entirety rest on the second support surfaces 82a. Due to the mutually angular arrangement of the second support surfaces 82a and the corresponding configuration of the second Gegenabstützbereiche 106a is thus a rotating the padfoot 52a on the changeover holder 22a to the Longitudinal axis of the holder shaft 26a preventing positive engagement effect achieved. A rotation could only occur if at the same time the padfoot 52a is lifted from the change holder 22a, which is prevented by the locking action of the locking member 102a.

A corresponding mutual abutment interaction could also be achieved with third counter-support portions 108a formed in the axial sides 60a 'and 62a' of the padfoot 52a between respective second counter-support portions 106a in cooperation with the third support surfaces 84a. Also in the circumferential side 56a 'and 58a' formed between two second Gegenabstützbereichen 106a fourth Gegenabstützbereichen 110a could be achieved or supported by cooperation with the fourth support surfaces 86a on the change holder 22a such a rotationally preventing form-fitting interaction.

The Fig. 26 illustrates the variability of the above-described changeover assembly 20a with respect to the applicability of various roll tools 16a. Illustrated by way of example are three different bits 18a, which can be coupled with the change holder 22a as required. Also shown are four different pad feet 52a, which are constructed to be identical to each other, in particular for rotation prevention on the change holder 22a, with the support portion 72a of the change holder 22a in the region of their respective counter-form-fit engagement formation 107a. All of these different roller tools 16a can be mounted on a compressor roller 10a to which the above-described changeover holders 22a are fixed. Here, of course, any combinations of different roller tools 16a are possible.

The Fig. 27 illustrates the approach to attaching a Roller tool 16a, so for example bit 16a or padfoot 52a, on a change holder 22a. The respectively to be mounted roller tool 16a is inserted with its holder shaft 26a in the provided on the change holder 22a holder opening 24a and so far inserted into this example by hammer blows until the locking member formed as a locking member 102a engages in the associated Arretierorganaufnahmeöffnung in the change holder 22a. The final assembly condition is in Fig. 27 shown lower right. In this state, the chisel head 46a rests on the first support surface 80a of the changeable holder 22a with its first counter-support region 97a projecting radially beyond the holder shank 26a. The locking member 102a engages with the aligned locking member receiving openings 98a, 100a.

The Fig. 28 illustrates the procedure for dismantling a roller tool 26a, so for example, chisel 18a or padfoot 52a, from the changeover holder 22a. As in Fig. 27 recognizable right below, stands in the assembled state of the holder shaft 26a in the Wechselhalterinnenraum 92a out. This state can be used, for example, by means of a pry bar 112a or a similarly curved tool laterally engage the interchangeable holder interior 92a, thereby under the holder shaft 26a and tilting by releasing the locking state locking member 102a in the provided on the interchangeable holder 22a first Arretierorganaufnahmeöffnung 98a the roller tool 16a, here, for example, chisel 18a, at least so far out of the opening 24a, that by additional engagement with the part of the roller tool 16a lying outside of the chisel holder 22a, it can be completely pulled out of the opening 24a.

As an alternative tool, a spline 114a may be used, which is inserted laterally into the interchangeable holder interior 92a and, supported on the outer peripheral surface 14a of the roll shell 12a by wedge action, displaces the holder shaft 26a in the opening 24a again so far that the locking member 102a gives up its locking engagement effect. For this purpose, for example, the sliding wedge 114a can be driven by hammer blows in the exchange holder interior 92a. In this case, relatively large forces can be generated, which can cancel the locking action of the locking member 102a.

If the roller tool 16 is additionally to be secured by an anti-rotation member against rotation on the changeover holder 22a, of course, before the displacement of the holder shank 26a of this anti-rotation member from this receiving opening 104a in the holder shaft 26a are pushed out, thus a displacement of the holder shaft 26a in the direction of Longitudinal axis L ₂ , to allow.

It should finally be pointed out that, of course, with the construction according to the invention, other roller tools, in particular also differently shaped chisels or differently shaped stamping feet, can be provided on the outer circumference of a compressor roller or can also be fixed in other patterns. Furthermore, it should be pointed out that the positioning of rolling tools by means of the change-holder arrangements to be provided according to the invention does not necessarily have to take place directly on the outer circumferential surface of the roll shell. It is also possible, for example, to provide an unstructured, smooth roll shell and to surround it with an example of a multi-part shell-like enclosure, on which then the bit holders are fixed and the various roll tools can be attached.

Claims (15)

1. Compactor roller for a soil compactor, comprising at an outer circumference at least one quick-change toolholder (22a) for mounting a roller tool (16a), wherein at least one roller tool (16a) to be attached to a quick-change toolholder (22a) comprises a counter-holder (28a) which can be brought into holding engagement with a quick-change toolholder (22a) and can be locked in relation to the quick-change toolholder (22a), wherein the quick-change toolholder (22a) comprises a holder opening (24a), wherein the counter-holder (28a) comprises a holder shaft (26a) which can be inserted into the holder opening (24a) and wherein at least one quick-change toolholder (22a) comprises a connecting area (70a) for connection to an outer circumferential surface (14a) of the compactor roller (10a) as well as a support area (72a) adapted for supporting a roller tool (16a) and arranged with a distance to the outer circumferential surface (14a) of the compactor roller (10a), wherein a plurality of second support areas (82a) inclined to one another is provided in the support area (72a) around the holder opening (24a) at the quick-change toolholder (22a), wherein each second support area (82a) is provided in the adjacent area of a circumferential side (56a, 58a) at an axial side (60a, 62a), characterized in that in the support area (72a) the holder opening (24a) is surrounded by a first support area (80a) at the quick-change toolholder (22a) which is essentially orthogonal to a radial direction in relation to a compactor roller rotary axis (A).
2. Compactor roller according to claim 1,
   characterized in that a plurality of rows (50a) extending ring-like about a rotary axis (A) of the compactor roller (10a) is provided with a plurality of quick-change toolholders (22a) each, wherein preferably the quick-change toolholders (22a) of directly adjacent rows (50a) in the direction of the rotary axis (A) are offset to one another in the row direction.
3. Compactor roller according to claim 1 or 2,
   characterized in that the counter-holder (28a) can be locked at the quick-change toolholder (22a) by means of a locking member (102a), wherein preferably the locking member comprises at least one locking pin, wherein at least partially aligned locking pin receiving recesses are provided at the quick-change toolholder and the counter-holder when the holder shaft is inserted into the holder opening, wherein furthermore, the locking member is preferably adapted with a U-shape and provides two locking pins.
4. Compactor roller according to one of claims 1 to 3,
   characterized in that at least one roller tool (16a) comprises a chisel (18a) or/and in that at least one roller tool (16a) comprises a pad foot (52a), wherein preferably a pad foot (52) used as a roller tool (16) comprises an essentially curved abutment area (64) adapted to the curved outer circumference of the compactor roller (10),
   or/and
   in that exclusively roller tools (16a) of one tool type (18a, 52a) are provided at the compactor roller (10a), or in that roller tools (16a) of at least two different tool types (18a, 52a) are provided at the compactor roller (10a), wherein preferably in at least one row (50a) roller tools (16a) of one tool type (18a) and roller tools (16a) of another tool type (52a) alternate in a periodic pattern, preferably alternatingly.
5. Compactor roller according to one of claims 1 to 4,
   characterized in that at least one quick-change toolholder (22a) comprises a connecting area (70a) adapted to the curved outer circumference of the compactor roller (10a), or/and in that the at least one quick-change toolholder (22a) is adapted tapering from the connecting area (70a) to the support area (72a).
6. Compactor roller according to one of claims 1 to 5,
   characterized in that the at least one quick-change toolholder comprises two circumferential sides (56a, 58a) oriented essentially in the circumferential direction of the compactor roller and two axial sides (60a; 62a) oriented essentially in the direction of a compactor roller rotary axis (A), wherein preferably the circumferential sides (56a, 58a) are inclined towards each other with a larger angle than the axial sides (60a, 62a),
   or/and
   in that the at least one quick-change toolholder (22a) comprises between the connecting area (70a) and the support area (72a) a soil processing area (74a) contacting the soil to be processed (B) if a roller tool (16a) is mounted to it.
7. Compactor roller according to claim 6,
   characterized in that at least one soil processing projection (78a) is provided at at least one circumferential side (58a) in the soil processing area (74a), wherein preferably the at least one soil processing projection (78a) has a projection height increasing from the connecting area (70a) to a maximum projection height or/and has a projection height decreasing from the maximum projection height towards the support area (72a).
8. Compactor roller according to one of claims 1 to 7,
   characterized in that at least one roller tool (16a) comprises a first counter support area (97a) which can be supported at the first support surface (80a).
9. Compactor roller according to one of claims 1 to 8,
   characterized in that in the support area (72a) a form fit engagement structure (105a) is provided for realizing a form fit engagement with a counter form fit engagement structure (107a) at a roller tool (16a).
10. Compactor roller according to one of claims 1 to 9,
    characterized in that in the support area (72a) at at least one axial side (60a, 62a) between two second support surfaces (82a) at least one third support surface (84a) is provided in an angle to the latter, or/and in that in the support area (72a) at at least one circumferential side (56a, 58a) between two second support surfaces (82a) at least one fourth support surface (86a) is provided in an angle to the latter.
11. Compactor roller according to one of claims 1 to 10,
    characterized in that the second support surfaces (82a) or/and the third support surfaces (84a) or/and the fourth support surfaces (86a) are angled in relation to the first support surface (80a) and preferably surround the latter in a ring-like manner,
    or/and
    in that at least one roller tool (16a) comprises at least a second counter support area (106a) for support at a second support surface (82a) or/and at least a third counter support area (108a) for support at a third support surface (86a) or/and at least a fourth counter support area (110a) for support at at least a fourth support surface (86a),
    or/and
    in that a transition area of at least a circumferential side (56a, 58a) or/and of at least an axial side (60a, 62a) or/and of the first support surface (80a) or/and of at least a second support surface (82a) or/and of at least a third support surface (84a) or/and of at least a fourth support surface (86a) is chamfered or rounded towards an adjacent other side or/and surface.
12. Compactor roller according to one of claims 1 to 11,
    characterized in that a first locking member receiving opening (98a), preferably in the form of a radial groove, is provided at an inner circumference of the holder opening (24a) or/and in that a second locking member receiving opening (100a), preferably in the form of a radial groove, is provided at an outer circumference of the holder shaft (26a), wherein a preferably ring-like locking member (102a) for locking a roller tool (16a) at a quick-change holder (22a) which can snap in the other locking member receiving opening (100a, 98a) is preferably received in the first locking member receiving opening (98a) or in the second locking member receiving opening (100a).
13. Compactor roller according to one of claims 1 to 12,
    characterized in that at a holder shaft (24a) provided at a roller tool (16a) a receiving opening (104a) is provided for an anti-rotation member to be positioned engaging an anti-rotation recess (94a) at the quick-change holder (22a),
    or/and
    that at least one quick-change holder (22a) defines a quick-change holder inner space (92a) preferably with an outer circumferential surface (14a) of the compactor roller (10a), wherein at least at one axial side (60a, 62a) oriented substantially in the direction of the compactor roller rotary axis (A) said quick-change toolholder inner space (92a) is open, wherein at a roller tool (16a) mounted at a quick-change toolholder (22a) a holder shaft (26a) provided at the roller tool (16a) projects through a holder opening (24a) provided at the quick-change toolholder (22a) into the quick-change toolholder inner space (92a).
14. Compactor roller according to one of claims 1 to 13,
    characterized in that that the holder opening (24a) provided at the quick-change holder (22a) comprises an opening longitudinal axis (L₁) oriented substantially in a radial direction in relation to a compactor roller rotary axis (A) and in that when a roller tool (16a) is mounted at the quick-change holder (22a), a holder shaft longitudinal axis (L₂) of the holder shaft (26a) provided at the roller tool (16a) is oriented substantially in the radial direction.
15. Soil compactor, comprising at least one compactor roller (10a) according to one of the preceding claims.

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