EP3034696A1 - Soil processing machine, in particular soil compactor - Google Patents

Abstract

A soil tillage machine, in particular soil compactor, comprises at least one roller (16) rotatable about a roller rotation axis (A) and at least one stripping device (36, 38) for stripping on the outer peripheral region (26) of the roller (16) in association with the at least one roller (16). 16), the scraper device (36, 38) comprising a scraper bar (40) extending along the roller (16), the scraper bar (40) providing a first scraper area (58) for stripping material from a roller formed in a substantially unstructured outer peripheral region (26) and for providing a second stripper region (66) for stripping material from a roll having a structured outer peripheral region (26).

Description

The present invention relates to a tillage machine, such. B. a soil compactor, which comprises at least one roller rotatable about a roller rotation axis and in association with at least one roller a stripping device for stripping adhering to the outer peripheral region of the roller material.

When carrying out soil compaction or soil compaction processes, depending on the material to be processed or compacted, there is in principle the risk that such material will adhere to the outer peripheral region of the roller. In particular, when compacting asphalt with a roll having a substantially unstructured, ie smooth outer circumferential region, asphalt material tends to adhere to the outer peripheral region or the substantially smooth outer circumferential surface of the roll. Also, when processing or compaction of soil with a roller, which has a structuring on its outer peripheral region, for example provided by a plurality of provided on the outer peripheral region tamping feet or the like, there is a tendency that between such structuring-providing elements, so for example the tamping feet, Material, in particular soil, loam or the like, accumulates and adheres.

In order to remove such adhering material from the outer peripheral portion of a roll, it is known to provide scraper devices which are generally formed to extend along the compacting roll and extend with a scraper region, such as a scraper edge, near the outer peripheral region of the roll. If a roll with a structured surface is used or a roll is converted in such a way that it has a structured outer circumferential region, for example by encasing with padfoot elements, dismantling of a stripping device provided for an unstructured roll and replacement of the same by a structured roll generally also have to be carried out provided stripping be made. This process is time consuming and expensive.

From the US 6,217,255 B1 is a tillage machine with the front and rear two known in each case laterally spaced rollers. The rollers are structured on their outer peripheral area and have radially outwardly projecting annular areas and depression areas formed therebetween. Associated with each of these rollers, there is provided a scraper having a plurality of tooth-like protruding scraper members movable toward and away from a respective carrier toward the outer peripheral portion of the associated roller. By a respective hydraulically actuated piston / cylinder unit paired, tooth-like Abstreiferorgane be moved into the spaces formed between two rings or moved out therefrom, thus releasing material accumulated therein in the interspaces positioned tooth-like Abstreiferorganes of an associated roller ,

The DE-A 1 634 686 discloses a road roller with a transformable roller drum. On the outer circumference of the roller a plurality of radially projecting stamp feet or the like are provided for providing a structured outer peripheral region. To provide a roller having a substantially unstructured outer circumferential region, the roller can be surrounded by shell-like covering elements, so that the stamping feet can be hidden under a roll jacket provided by the covering elements.

It is the object of the present invention to provide a soil cultivating machine, in particular a soil compactor, which in a simple manner allows adaptation of a scraper device to operation with a roller having an unstructured outer peripheral region and an operation with a roller having a structured outer circumferential region.

• wenigstens eine um eine Walzendrehachse drehbare Walze,
• in Zuordnung zu wenigstens einer Walze eine Abstreifvorrichtung zum Abstreifen von am Außenumfangsbereich der Walze anhaftendem Material,

wobei die Abstreifvorrichtung einen entlang der Walze sich erstreckenden Abstreiferbalken umfasst, wobei der Abstreiferbalken zum Bereitstellen eines ersten Abstreiferbereichs zum Abstreifen von Material von einer mit im Wesentlichen unstrukturiertem Außenumfangsbereich ausgebildet ist und zum Bereitstellen eines zweiten Abstreiferbereichs zum Abstreifen von Material von einer Walze mit strukturiertem Außenumfangsbereich ausgebildet ist.According to the invention, this object is achieved by a soil cultivation machine, in particular soil compactor, comprising:

• at least one roller rotatable about a roller rotation axis,
• in association with at least one roller, a stripping device for stripping material adhering to the outer peripheral region of the roller,

wherein the scraper device comprises a scraper bar extending along the roller, the scraper bar being configured to provide a first scraper area for scrapping material from a substantially unstructured outer peripheral area and for providing a second scraper area for scrapping material from a roller having a structured outer peripheral area is.

In the structure according to the invention, it is thus provided that one and the same stripping device can be used in conjunction with rollers of different design of the outer peripheral region. It may possibly be necessary adjustment measures within the stripping itself. A complete replacement of a stripping device provided for an unstructured roll by a stripping device for a roll with a structured outer peripheral region is not required.

In order to be able to achieve an effective wiping interaction in the structure according to the invention, it is proposed that the wiper bar preferably extend along the roll substantially parallel to the roll axis of rotation.

• einer ersten Betriebsstellung, wobei in der ersten Betriebsstellung der erste Abstreiferbereich in Abstreifwechselwirkung mit der Verdichterwalze ist,

oder/und

• einer zweiten Betriebsstellung, wobei in der zweiten Betriebsstellung der zweite Abstreiferbereich in Abstreifwechselwirkung mit der Verdichterwalze ist, und
• einer Montage/Demontage-Stellung, wobei in der Montage/Demontage-Stellung der Abstreiferbalken zum Montieren bzw. Demontieren oder/und zum Verstellen wenigstens eines ersten Abstreiferorgans des ersten Abstreiferbereichs oder/und wenigstens eines zweiten Abstreiferorgans des zweiten Abstreiferbereichs positioniert ist.

In order to be able to adapt the stripping device of the tillage machine according to the invention for interaction with differently shaped rollers, it is proposed that the stripping bar is movable between:

• a first operating position, wherein in the first operating position the first wiper area is in stripping interaction with the compacting roller,

or and

• a second operating position, wherein in the second operating position, the second scraper area in stripping interaction with the compacting roller, and
• a mounting / dismounting position, wherein in the mounting / dismounting position of the scraper bar for mounting or dismounting and / or for adjusting at least one first scraper element of the first scraper region and / or at least one second scraper element of the second scraper region is positioned.

In order to be able to achieve these various positions in a simple manner, it is proposed that the scraper bar is pivotable about a movement axis essentially parallel to the roller rotation axis and / or is displaceable towards and away from the outer peripheral area of the roller in the direction of the outer peripheral area of the roller.

For a pivoting movement or a sliding movement permitting attachment of the Abstreiferbalkens on a machine frame is proposed that the Abstreiferbalken is firmly connected at its two end portions with a machine frame in the first operating position and / or in the second operating position and moving into and out of the assembly / Dismantling position on the machine frame is pivotally supported.

For this purpose, for example, be provided that a slot guide is provided in association with each end of the Abstreiferbalkens on the machine frame, wherein the Abstreiferbalken firmly connected by at least one, preferably a plurality of slot guide enforcing fasteners in the first operating position and / or in the second operating position with the machine frame or is connectable and with a slot guide passing through the fastening member with respect to the machine frame is pivotable.

In order to be able to configure the wiper device for wiping interaction with differently configured rollers in the construction according to the invention, it is proposed that the wiper bar comprise a first mounting area for mounting at least one first wiper element of the first wiper area and a second mounting area for mounting at least one second wiper element of the second wiper area ,

This mountability or disassembly of various scraper elements can be achieved in a simple manner in that the scraper bar comprises an elongated beam body and on the beam body a plurality of the scraper element carriers providing the first mounting area and the second mounting area.

In an alternative embodiment, the scraper bar may comprise an elongate bar body with at least one first mounting plate providing the first mounting area and at least one second mounting plate providing the second mounting area. On the preferably substantially planar surfaces of these mounting plates, the wiper organs assigned to the different wiper areas or supporting carrier elements can be fixed.

In order to provide a wiping interaction with rolls with an unstructured outer peripheral region or rolls with a structured outer peripheral region, it is proposed that the first wiper region comprise at least one first wiper element which provides a wiper edge passing substantially uninterruptedly along the roll rotation axis, and / or the second wiper region has a plurality of along the Roll rotational axis with spaced apart, tooth-like protruding second Abstreiferorganen comprises.

In order to be able to obtain the wiping interaction with a roller with the various designed Abstreiferorganen in the above-mentioned positions, it is further proposed that when positioned in the first operating position Abstreiferbalken the at least one first Abstreiferorgan the first Abstreiferbereichs in stripping interaction with the outer peripheral region of the compacting roller and the second wiper members of the second wiper portion are not in wiping engagement with the outer peripheral portion of the compacting roller but are supported on the wiper blade, and in that the wiper blade is positioned in the second operating position, the at least one wiper member of the first wiper portion is disassembled by the wiper blade; second wiper members of the second wiper portion in wiping engagement with the outer peripheral portion of the roller.

For easy operation of the scraper bar, e.g. for pivoting or shifting between the various positions, it is proposed that at least one actuating tool for pivoting and / or moving and / or holding the scraper bar be attached or attached to the scraper bar.

In order to be able to optimally use the or each stripping device of a tillage machine designed according to the invention for stripping material from the outer peripheral area of a roller, it is proposed that at least one stripping area comprise at least one stripping member engageable with the roller in scraping interaction, at least one, preferably each stripping member at least one Abstreiferbereichs with respect to a roll axis of rotation orthogonal to the radial line is angled and employed in the direction of rotation of the roller, and / or at least one, preferably each Abstreiferorgan at least one Abstreiferbereichs with respect to the radial line angled and adjusted against the rotational direction of the roller.

It is pointed out in this context that for the purposes of the present invention, the direction of rotation used for the definition of the setting is the direction of rotation of the roller, which has this when the tillage machine is in a primarily provided during tillage movement state, such as a forward driving state, located. This does not exclude that also operating conditions can occur in which the tillage machine moves in the opposite direction and thus the roller rotates in the opposite direction about its rolling axis of rotation.

In a structurally particularly easy to implement and also easy to handle design it is proposed that at least one scraper element of the first scraper region and at least one scraper element of the second scraper region be employed in the same direction, preferably in the direction of rotation of the roller.

In a positioning optimized in particular for the wiping effect of the first wiper area, it is proposed that at least one wiper element of the first wiper area be set in a first direction, preferably counter to the direction of rotation, and at least one wiper element of the second wiper area be moved in a second direction, preferably in the direction of rotation. is employed.

In order to be able to remove material detached from an outer peripheral region of a roller from the area of the stripping device, it is further proposed that at least one scraper element, which is preferably operated counter to the direction of rotation of the roller, has a discharge device for discharging material detached from the roller by the scraper element in the direction of the roller is assigned away.

For the wiper members not required during operation of the wiper, at least one jaw mounting portion may be provided for releasably mounting at least one wiper member not mounted to the wiper beam, preferably on a machine frame rotatably supporting the drum.

The present invention further relates to a method for operating a soil cultivating machine, in particular a soil compactor, which is constructed as described above or with at least one constructed as described above scraper in association with at least one roller. In this method, when the tillage machine is operated with a roll having a substantially unstructured outer peripheral area, at least one stripper associated with that roll is configured and positioned such that the stripper bar is in scraping interaction with the outer peripheral area of the roll with its first stripper area, and then when the tilling machine is operated with a roller having a structured outer peripheral area, at least one stripping device associated with this roller is configured and positioned with its scraper bar its second wiper area in stripping interaction with the outer peripheral area of the compacting roller.

In this case, it can be provided according to the invention that, for operation with a roller having a structured outer circumferential area, at least one first wiper element of the first wiper area is removed from the wiper bar when the wiper bar is positioned in the assembly / disassembly position, followed by the wiper bar by a swivel or / and Sliding motion is positioned in its second operating position.

Fig. 1

eine Seitenansicht einer in Form eines Bodenverdichters ausgeführten Bodenbearbeitungsmaschine mit einer Walze mit im Wesentlichen unstrukturiertem Außenumfangsbereich;

Fig. 2

in Seitenansicht eine Walze mit strukturiertem Außenumfangsbereich und dieser zugeordnetem Abstreifervorrichtungen;

Fig. 3

eine Detailansicht einer Walze mit unstrukturiertem Außenumfangsbereich und in einer Montage/Demontage-Stellung positioniertem Abstreiferbalken einer Abstreifvorrichtung;

Fig. 4

eine der Fig. 3 entsprechende Ansicht bei in Richtung auf eine erste Betriebsstellung zu verschobenem Abstreiferbalken einer Abstreifervorrichtung;

Fig. 5

eine Explosionsdarstellung eines Abstreiferbalkens mit den im Wesentlichen einen ersten Abstreiferbereich bereitstellenden Komponenten,

Fig. 6

eine der Fig. 4 entsprechende Darstellung einer Walze mit strukturiertem Außenumfangsbereich und einem in Richtung auf eine zweite Betriebsstellung zu verschobenen Abstreiferbalken;

Fig. 7

eine teilweise explosionsartig dargestellte Ansicht eines Abstreiferbalkens mit im Wesentlichen einen zweiten Abstreiferbereich bereitstellenden Komponenten;

Fig. 8

eine Seitenansicht eines Teils einer Bodenbearbeitungsmaschine mit einer alternativ aufgebauten Abstreifvorrichtung;

Fig. 9

eine perspektivische Teilansicht des in Fig. 8 dargestellten Teils einer Bodenbearbeitungsmaschine;

Fig.

10.eine Schnittdarstellung der in Fig. 8 dargestellten Bodenbearbeitungsmaschine mit einem für den Betrieb vorbereiteten ersten Abstreiferbereich;

Fig. 11

eine der Fig. 10 entsprechende Ansicht mit einem für den Betrieb vorbereiteten zweiten Abstreiferbereich.

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

Fig. 1

a side view of a running in the form of a soil compactor tillage machine with a roller having a substantially unstructured outer peripheral region;

Fig. 2

in side view, a roller with structured outer peripheral region and associated Abstreifervorrichtungen;

Fig. 3

a detail view of a roller with unstructured outer peripheral portion and in a mounting / dismounting position positioned Abstreiferbalken a scraper;

Fig. 4

one of the Fig. 3 corresponding view with in the direction of a first operating position to shifted scraper bar a scraper device;

Fig. 5

an exploded view of a Abstreiferbalkens with essentially providing a first scraper area components,

Fig. 6

one of the Fig. 4 corresponding representation of a roller with a structured outer peripheral region and a to be moved toward a second operating position scraper bar;

Fig. 7

a partially exploded view of a scraper bar with essentially a second stripper area providing components;

Fig. 8

a side view of a portion of a tillage machine with an alternative constructed stripping device;

Fig. 9

a partial perspective view of the in Fig. 8 represented part of a tillage machine;

FIG.

10 is a sectional view of the in Fig. 8 represented tillage machine with a prepared for operation first scraper region;

Fig. 11

one of the Fig. 10 corresponding view with a prepared for operation second scraper area.

In Fig. 1 is a trained in the form of a soil compactor tillage machine 10 shown in side view. The soil cultivating machine 10 comprises a front carriage 12 and a rear carriage 14. On the front carriage 12, a roller 16 for machining, here for compacting a substrate 18, is rotatably supported about a roller rotation axis. At the rear 14 drive wheels 20 and a cab 22 are provided. The drive wheels 20 can be driven by a likewise provided on the rear carriage 14 drive. Optionally provided in the roller 16 imbalance masses, for example, the generation of an oscillatory motion and / or a vibratory movement of the roller 16 can also be driven by the drive 24 and the energy provided by the drive 24.

In order to be able to strip the adhering material, for example soil, asphalt material or the like, in the soil tillage operation on the outer peripheral region 26 of the roller 16, in particular of a surface 27 which is unstructured here, ie substantially smooth, a strip 16 of such a roller can be assigned. The construction and the functionality of such stripping devices will be described below with reference to FIGS Fig. 2 to 7 described in detail.

The Fig. 2 For example, the structured outer peripheral region 26 may be provided by a plurality of provided on the outer circumference of the roller 16 Stamp feet 28. These can be arranged in the circumferential direction successively and in the direction of the roller rotation axis A in several rows in that, in each case, a gap is formed between rows of stamp feet 28 which follow one another in the direction of the roll rotation axis A.

It should be noted here that a roller 16 can in principle be constructed with such stamp feet 28 and thus structured outer circumferential region 26. Alternatively, a roller 16 also with the in Fig. 1 recognizable unstructured outer peripheral region 26 may be constructed. If such a roller 16 is then used, for example, for compacting soil, it can be clad with a plurality of shell-type sheathing elements on which stamping feet or other processing elements are provided, by means of which the structuring of the outer peripheral region 26 is achieved.

The Fig. 2 also shows the roller frame 16 rotatably supporting machine frame 30 of the front carriage 12. At substantially transversely to a direction of movement of the tillage machine 10 or substantially in the direction of the roller axis A extending cross beams 32, 34 of the machine frame 30 are in association with the roller 16 two stripping devices 36, 38 provided. The scraper device 36 is arranged in front of the roller 16, with respect to a forward movement direction of the soil cultivation machine 10, while the scraper device 38 is arranged behind the roller 16. The stripping devices 36, 38 are basically the same structure, so that their structure and functionality will be described in detail below with reference to the stripping device 36. These remarks apply equally to the stripping device 38. It should also be pointed out that, of course, a roller 16 could also be provided on the rear carriage 14 instead of the drive wheels 20, ie the tillage machine 10 could be designed with two rollers 16. Each of these rollers may then be associated with one or two strippers 36 and 38, respectively.

The stripping device 36 comprises a scraper bar, generally designated 40. This scraper bar 40 is positioned so that it extends substantially parallel to the roller rotation axis A along the roller 16 and thus can detect their entire axial length in stripping operation.

The scraper bar 40 comprises an elongated, tubular beam body 42. Plate-like mounting elements 48, 50 are fixed at its two end regions 44, 46, for example, by welding. In addition, respective wiper element carriers 52 extend from the bar body 42 at a substantially uniform distance from one another. The wiper element carriers 52 provide a first mounting region 54 on which a first wiper element 56 of a first wiper area 58, designed here in the form of a continuous plate or blade, is fixed by screwing, for example can be. It can be provided that the screwing through respective slots 60 in the first Abstreiferorgan 56 through, so that it can be arranged transversely to the longitudinal direction of the beam body 42 in different displacement positions and screwed. The wiper organ carriers 52 further provide a second mounting region 60 on a side opposite the first mounting region 54. At the second mounting area 60, plate-like or tine-like second wiper elements 64 of a second wiper area 66 can be fixed to the wiper organ carriers 52, for example by screwing. The second wiper members 64 may be formed with a slot 68 through which the determination, for example with two bolts, so that the second Abstreiferorgane 64 can be moved transversely to the longitudinal direction of the beam body 42 or fixed in different positions. As the Fig. 7 this shows, the second Abstreiforgane 64 are tooth-like at a mutual distance in the longitudinal direction of the Abstreiferbalkens 40.

On the machine frame 30, for example on the cross member 32, counter-mounting portions 70 may be provided in association with the two plate-like mounting elements 48, 50. Each counter-mounting portion 70 may include a slot 72 through which at least two fasteners, such as mounting screws, in respective threaded openings 74, 76 of the mounting members 48, 50 can be screwed. If two such bolts or fasteners each screwed through a respective slot 72 in an associated mounting member 48 or 50, the scraper bar 40 is secured against pivoting or tilting substantially, but in the longitudinal direction of a respective slot 72 in the direction of the outer peripheral portion 26 of the roller 16 displaceable to or from. In each of these displacement positions of the scraper bar 40 can be locked by tightening. If only one of the fastening screws is guided through the respective oblong hole 72 and screwed into an associated mounting element 48, 50, then the scraper bar 48 can be pivoted with this or around this fastening element in the respective slot 72, if necessary, also displaced simultaneously.

By virtue of the above-described mountability of the wiper bar 40 on the machine frame 30, it is possible to position the wiper bar 40 or its wiper areas 58, 66 and the wiper elements 56 and 64 respectively provided or to be provided there in different positions. It is initially assumed that in the delivery state, ie when new, the soil tillage machine 10 as in Fig. 2 is shown formed. The respective scraper bar 40 of the scrapers 36, 38 is configured such that both the first scraper 56 and the second scrapers 64 are mounted on the two mounting portions 54, 60, but the scraper bar 40 is in the slots 72 in the direction of the outer peripheral portion 26 of FIG For example, with unstructured outer peripheral region 26 trained roller 16 is moved away and fixed in this position. Should then with such a wiper device 36 and 38, a wiping operation on the outer peripheral portion 26 of this, for example also in Fig. 4 can be seen by loosening of a respective mounting member 48, 50 fixing fasteners of the entire Abstreiferbalken 40 in the direction of the outer peripheral portion 26 until the top or on the upper mounting portion 54 defined first Abstreiferorgan 56 with the scraper edge 73 formed thereon is positioned near the outer peripheral portion of the roller 16. Due to the inclination of the scraper bar 40 with respect to the roller 16, the scraper edge 73 is closer to the outer peripheral portion 26 of the roller 16, as the second Abstreiferorgane 64. This makes it possible despite the mounted on the second mounting portion 60 second Abstreiferorgane 64 of the second Abstreiferbereichs 66 in this first operating position perform a scraping operation with the first wiper member 56 of the first wiper portion 58. Since the first scraper element 56 is in principle also displaceable in the direction of the roller 16 with respect to the first mounting region 54, a fine adjustment also induced by wear can also be carried out in this region or by this movement.

If such a tillage machine 10 is to be used, for example, for compacting soil, for which it is advantageous to equip a roller 16 with pad feet 28, the roller 16 can be provided, for example, with a corresponding casing, so that at its outer peripheral area 26 then generated by the plow feet 28, a structuring is present. In order to be able to use the stripping devices 36, 38 also in this state or for such a roller having a structured outer circumferential region 26, the stripping bar 40 can be used in the manner shown in FIG Fig. 3 shown assembly / disassembly position are brought. This can be done before or after the casing of the roller 16 with the structuring on the outer peripheral region 26 generating elements. The transition to the in Fig. 3 shown assembly / disassembly position can be effected in that in each of the two mounting elements 48, 50 of the fastening members, so for example bolts, is removed and the scraper bar 40 is then pivoted about the other fastening member or with the other fastening member in the respective slot 72 , If necessary, also in the direction of the roller 16 is moved away. For this purpose, at least one lever-like or handle-like actuating tool 77 may be provided on the stripper bar 40, which defines a defined movement in the Assembly / disassembly position or out of this position and, if necessary, also allows the Abstreiferbalkens 40 in one position. The actuating tool 77 may be fixed to the stripper bar 40, for example, by welding, but can also be detachably attached to the stripper bar 40 by insertion into a sleeve 79 fixed to the stripper bar 40.

Is the scraper bar in the in Fig. 3 illustrated position, the first Abstreiferorgan 56 on the first mounting portion 54 locking bolts can be solved and the entire first Abstreiferorgan 56 can be removed from the scraper bar 40. It should be noted here that in association with the plattenbzw. Blade-like first Abstreiferorgan 56 on both sides of the same respective rail-like intermediate elements 78, 80 may be provided, via which the first Abstreiferorgan 56 can be supported on the one hand on the Abstreiferorganträgern 52, and on which the other hand, the first Abstreiferorgan 56 defining screws can be supported.

After removal of the first wiper member 56 with the components associated therewith, the wiper bar 40 can be moved away from the in Fig. 3 shown assembly / disassembly position then again to be pivoted toward the outer peripheral region of the roller 16 and moved. Since the first wiper member 56 is no longer supported on the wiper bar 40, the wiper bar 40 may be in the position shown in FIG Fig. 6 shown manner in the direction of the outer peripheral portion 26 of the roller 16 to be moved until the tooth-like projecting second Abstreiferorgane 64 engage in the spaces between the ring-like successively arranged Stamp feet 28. To achieve this, for example, first, starting from the position of the Fig. 3 after the back swinging of the scraper bar in association with each mounting member 50, the second fixing member are again introduced, so that a pivoting of the scraper bar is prevented. Subsequently, the scraper bar 40 can be slid toward the outer perimeter area 26 until the second scraper members 64, in a second operative position, engage the interspaces between the rings of pad feet 28 in stripping engagement with the roller 16.

It should be noted here that in the first operating position and the second operating position of the Abstreiferbalken 40 may be positioned differently with respect to the machine frame 30 and also with respect to the roll axis A, so may have a greater distance from the roll axis A, for example, in the first operating position than in the second operating position. In principle, however, the scraper bar 40 with respect to the machine frame 30 and thus also the roller rotation axis A could be positioned the same in both operating positions, so that the two operating positions basically differ by which of the scraper elements is provided on the scraper bar 40 or brought into scrape interaction with the roller 12 ,

It can be seen that due to the wedge-like configuration of the Abstreiferorganträger 52, the first Abstreiferorgan 56 on the one hand and the second Abstreiferorgane 64 on the other hand in different angles of attack, but with the same Anstellrichtung with respect to the roller 16 are oriented, if they by respective positioning on or with the Abstreiferbalken 40 in Abstreifwechselwirkung with the roller 16 are. Thus, for example, the plate-like first Abstreiferorgan 56 in the first operating position, ie when this or the first Abstreiferbereich 58 in Abstreifwechselwirkung with the roller 16, at an angle of about 30 ° with respect to the outer peripheral region of the roller 16 and a tangentially extending thereto Line oriented. When positioned in the second operating position, that is, when the second Abstreiferorgane 64 are positioned engaging between the rings of pad feet 28, this have an angle of about 47 ° with respect to the roller 16 and a line extending tangentially thereto. This angle of attack for the two wiper areas 58, 66 can be predetermined for the wiping operation to be carried out on the one hand by the configuration of the wedge shape of the wiper organ carrier 52 and on the other hand by the selection of the angle of inclination of the elongated holes 72.

At the in Fig. 2 In the embodiment shown, the wiper elements 56 and 64 of the two wiper areas 58 and 66 are oriented with respect to a radial line L emanating from the roll axis of rotation A so that they move forward the tillage machine 10 existing rotation direction R of the roller 16 in the direction of rotation R are employed. This means that the respective scraper elements 56 and 64, when extending from the scraper bar 40 to the outer peripheral area 26 of the roller 16, have an extension direction component in the direction of the rotational direction R or tangentially thereto. At the in Fig. 2 Scraper device 40 shown at the bottom right, the Abstreiferorgane the two Abstreiferbereiche 58, 66 against the rotation direction R of the roller 16 when the tillage machine 10 in the forward direction of travel V is employed. This means, these Abstreiferorgane, starting from the scraper bar, an extension direction component opposite to the direction of rotation R on.

If a conversion is to be carried out in the reverse order, that is, after initially working with a roller 16 with a structured outer peripheral region 26, working with a roller 16 with an unstructured outer peripheral region 26, the process described above can be carried out in the reverse order. The scraper bar 40 can in his in Fig. 3 shown assembly / disassembly position are brought. Then, the first Abstreiferorgan 56 can be set again on the stripper bar 40. Subsequently, by panning back and forth, as in Fig. 4 indicated, the scraper bar 40 returned to its first operating position and locked in this. A disassembly of the second Abstreiferorgane 64 is not required.

It should be noted that the previously described embodiment of the wiper devices or of the wiper bar 40 can be varied in various ways. Thus, for example, the first wiper area 58 could be formed with a plurality of plate-like first wiper elements 56, which immediately adjacent to one another provide a scraper edge 73 running substantially uninterruptedly along the roller 16. The shape or dimensioning of the second wiper members 64 may be selected to match the patterning of the outer peripheral portion 26.

The 8 to 11 show an alternative embodiment of a tillage machine. Components or assemblies which correspond to components or assemblies described above in terms of design or function are designated by the same reference numerals with the addition of an appendix "a".

In the in the 8 to 11 In the illustrated embodiment of the soil tillage implement 10a, the wiper 36a comprises a scraper bar 40a having a substantially triangular cross-sectional profile and extending substantially parallel to the axis of rotation of the roller 16a. The scraper bar 40a or the bar body 42a thereof is constructed with three triangular configuration with respect to each other arranged mounting plates 90a, 92a, 94a, which may be firmly connected, for example, at their longitudinal end to the mounting members 48a, 50a by welding. By means of the mounting elements 48a, 50a, the scraper bar 40a can be displaced in the direction of the elongated holes 72a, in relation to the machine frame 30a, or moved into and out of the machine frame 30a in cooperation with the oblong holes 72a with respect to the machine frame 30a Assembly / disassembly position with respect to the machine frame 30a are pivoted.

The mounting plate 90a provides the first mounting portion 54a to which a plate-like blade-like first wiper member 56a of the first wiper portion 58a can be attached by means of a plate-like support member 96a. The first wiper member 56a is fixed by screwing to the plate-like support member 96a, which in turn can be fixed by screwing to the mounting plate 90a. In the plate-like or blade-like first Abstreiferorgan 56a provided for fixing the same used threaded bolts elongated holes are provided so that it can be moved with respect to the plate-like support member 96a in the direction of the scraper bar 40a or on this and fixed in different positions. Further, together with the first scraper element 56a, a discharge element 98a constructed of sheet material, for example, is fixed to the plate-like carrier element 96a, for example using the first scraper element 56a thereon as well fixing bolts. The diverting element 98a extends from the connection to the plate-like carrier element 96a in the direction away from the roller 16a and covers the scraper bar 40a. This ensures that material detached from the outer peripheral region 26a of the roller 16a by the first wiper member 56a does not accumulate in the region of the wiper blade 40a, but is passed over it and can fall to the ground.

One recognizes in the Fig. 8 to 10 in that the first wiper member 56a, together with the plate-like support member 96a supporting it, is angled with respect to the radial line L in such a manner as to be in abutment with the direction of rotation R of the roller 16 as it moves in the forward direction V. This ensures that the material released from the outer peripheral portion 26a can be reliably guided over the scraper bar 40a and can not accumulate in the area between the scraper member 56a and the outer peripheral portion 26a of the roller 16a.

In Fig. 10 the scraper bar 40a or the first scraper area 58a provided thereon is shown in an intermediate position, in which the scraper bar 40a is pivoted out of the assembly / disassembly position and fixed against pivoting with respect to the oblong holes 72a, but not yet in the direction of the outer peripheral area 26a is displaced to in order to bring the first stripper portion 58a in the first operating position in stripping interaction with the roller 16a and the outer peripheral portion 26a. This can be done by displacement along the slots 72a in the illustration of Fig. 10 to the bottom right so that the first wiper member 56a approaches the outer peripheral portion 26a. When the first operating position has been reached, the scraper bar 40a can be fixed in relation to the machine frame 30a by screwing, as previously described with reference to the first embodiment.

The Fig. 11 shows a cooperating with a roller 16a with structured outer peripheral portion 26a second scraper region 66a. The mounting plate 92a forms the second mounting portion 60a for the tooth-like protruding second wiper members 64a. These can, like the Fig. 9 This may be provided on a wiper member 100a as integral components. A beam-like portion 102a of the scraper body member 100a may be fixed by bolts to the plate-like mounting member 92a and the second mounting portion 60a, respectively, so that the tooth-like protruding second scraper members 64a are angled with respect to the radial line L and set in the direction of rotation R in the spaces between juxtaposed stamping feet 28a can be positioned engaging. This shows also the Fig. 11 a transitional position between the assembly / disassembly position and the second operating position, in which transitional position of the scraper bar 40a with respect to the machine frame 30a already held against rotation, but not yet shifted in the direction of the outer peripheral portion 26a. It should also be pointed out here that the wiper bar 40a in the first operating position, ie in the effectiveness of the first wiper member 58a, and in the second operating position, ie in the effectiveness of the second wiper 64a, basically the same relative positioning with respect to the machine frame 30a and the roller 16a can take, for. B. depending on the wear of the different Abstreiferorgane or the design of the roller 16a but also different positions along the slots 72a can take.

As in the in the 8 to 11 In the embodiment shown, only the first wiper element 58a or the second wiper elements 64a can be provided on the wiper bar 40a, advantageously on the machine frame 30a, a mounting area 104a is provided. This may be formed, for example, on the cross member 32a of the machine frame 30 and include a plurality of bolts 106a on the cross member 32a used for securing one or more first wiper members 56a together with a respective plate-like carrier 96a and one or more diverter members 98a. Should the in Fig. 11 The first scraper elements 56a or one of them, which are provided on the mounting area 104a, can be exchanged for the scraper elements 100a or fixed to the scraper bar 40a. In this case, the wiper member members 100a can then be attached to the mounting-mounting portion 104a by means of the bolts 106a.

One recognizes in the 8 to 11 in that in each case two first scraper elements 56a with the associated plate-like carriers 96a or diverting elements 98a or two scraper element components 100a each providing a plurality of second scraper elements 64a can be provided on the mounting mounting area 104a. In this case, one of these modules can serve as a reserve in the event that the other is worn or has damage. In principle, however, the configuration could also be such that a plurality of first scraper elements 56a with the associated plate-like carriers 96a and diverting elements 98a are successively attached to the plate-like mounting element 90a in the direction of the roller rotation axis successively to cover the entire extension length of the roller 16a a plurality of scraper organ parts 100a are attached to the plate-like mounting member 92a. The design of these assemblies of lesser length than the roller 16a simplifies their handling when mounted on the scraper bar 40a and when disassembling the scraper bar 40a.

In principle, it should be pointed out that a scraper device or scraper bar designed according to the invention can also be used as basic equipment in a soil cultivation machine which is not intended for conversion between different states of the roller. Depending on the type of application, if necessary, the first wiper member can be completely disassembled, or the second wiper members can be dismantled if they are not required in principle. However, one and the same scraper bar can be used in its basic configuration for a variety of tillage machines. It should also be pointed out that the structuring on the outer circumferential region of a roller can not necessarily take place only by the provision of pad feet. Other structuring elements such as e.g. Chisel or other tillage tools are provided on the outer circumference of such a roller.

Claims (19)

Soil preparation machine, in particular soil compactor, comprising: at least one roller (16, 16a) rotatable about a roller rotation axis (A), at least one stripping device (36, 38; 36a, 38a) for stripping material adhering to the outer peripheral region (26; 26a) of the roller (16; 16a) in association with at least one roller (16; 16a), said stripping device (36, 38; 36a; 38a) comprising a scraper bar (40; 40a) extending along said roller (16; 16a), said scraper bar (40; 40a) providing a first scraper area (58; 58a) for Stripping of material from a roller having a substantially unstructured outer peripheral portion (26; 26a) is formed and for providing a second scraper region (66; 66a) for stripping material from a roller having a structured outer peripheral portion (26; 26a) is formed. Soil cultivation machine according to claim 1,
characterized in that the scraper bar (40; 40a) preferably extends along the roller (16; 16a) substantially parallel to the roller rotation axis (A). Soil cultivation machine according to claim 1 or 2,
characterized in that the scraper bar (40; 40a) is movable between: a first operating position, wherein in the first operating position the first wiper area (58; 58a) is in wiping interaction with the roller (16; 16a), or and a second operating position, wherein in the second operating position the second stripping region (66; 66a) is in stripping interaction with the roller (16; 16a), and - an assembly / disassembly position, wherein in the assembly / disassembly position of the scraper bar (40; 40a) for mounting / dismounting and / or adjusting at least a first Abstreiferorgans (56; 56a) of the first Abstreiferbereichs (58; 58a) or / and at least one second wiper member (64; 64a) of the second wiper portion (66; 66a) is positioned. Soil cultivation machine according to claim 3,
characterized in that the scraper bar (40; 40a) is pivotable about an axis of movement substantially parallel to the roller rotation axis (A) and / or toward the outer peripheral area (26; 26a) of the roller (16; 16a) to and from the outer circumference area (26; 26a) of the roller (16; 16a) is displaceable away. Soil cultivation machine according to claim 4,
characterized in that the scraper bar (40, 40a) at its two end regions (44, 46; 44a, 46a) with a machine frame (30; 30a) in the first operating position and / or the second operating position is firmly connected and for moving in the and pivotally supported from the assembly / disassembly position on the machine frame (30; 30a). Soil cultivation machine according to claim 5,
characterized in that a slot guide (72; 72a) is provided in association with each end region (44, 46; 44a, 46a) of the stripper bar (40; 40a) on the machine frame (30; 30a), the stripper bar (40; in the first operating position and / or the second operating position is firmly connected or connectable to the machine frame (30; 30a) by at least one, preferably a plurality of fastening devices passing through the slot guide (72; 72a) and can be connected to the slot guide (72; 72a) permeable fastening member with respect to the machine frame (30; 30a) is pivotable. Soil cultivation machine according to one of claims 1 to 6,
characterized in that the wiper bar (40; 40a) includes a first mounting portion (54; 54a) for mounting at least one first wiper member (56; 56a) of the first wiper portion (58; 58a) and a second mounting portion (60; 60a) for mounting at least one second wiper member (64; 64a) of the second wiper portion (66; 66a). Soil cultivation machine according to claim 7,
characterized in that the scraper bar (40) comprises an elongated beam body (42) and on the beam body (42) a plurality of the first mounting area (54) and the second mounting area (60) substantially providing Abstreiferorganträgern (52). Soil cultivation machine according to claim 7,
characterized in that the scraper bar (40a) comprises an elongate beam body (42a) having at least one first mounting plate (90a) providing the first mounting area (54a) and at least one second mounting plate providing the second mounting area (60a). Soil cultivation machine according to one of claims 1 to 9,
characterized in that the first wiper area (58; 58a) comprises at least one first wiper element (56; 56a) providing a wiper edge (73; 73a) running along the roller rotational axis (A) substantially uninterrupted;
or and
in that the second scraper region (66; 66a) comprises a plurality of second scraper members (64; 64a) spaced apart from one another along the roller rotation axis (A) and arranged in a tooth-like manner. Soil cultivation machine according to claim 3 and claim 10,
characterized in that, when the scraper bar (40; 40a) is positioned in the first operating position, the at least one first scraper member (56; 56a) of the first scraper area (58; 58a) strikes the outside circumference area (26; 26a) of the roller (16; ) and the second Wiper members (64; 64a) of the second wiper portion (66; 66a) are not in wiping engagement with the outer peripheral portion (26; 26a) of the roller (16; 16a), and in that the wiper bar (40; 40a) is positioned at least in the second operating position a first wiper member (56; 56a) of the first wiper portion (58; 58a) is disassembled from the wiper bar (40; 40a) and the second wiper members (64; 64a) of the second wiper portion (66; 66a) are in wiping engagement with the outer peripheral portion (26; 26a) of the roller (16; 16a). Soil cultivation machine according to one of claims 1 to 11,
characterized in that at least one actuating tool (77) for pivoting and / or moving and / or holding the Abstreiferbalkens (40; 40a) attached or attachable to the scraper bar (40; 40a). Soil cultivation machine according to one of claims 1 to 12, characterized in that at least one scraper region (58, 66, 58a, 66a) comprises at least one scraper element (56, 64, 56a, 64a) which can be brought into wiping interaction with the roller, wherein at least one, preferably each wiper member (56, 64; 56a, 64a) of at least one wiper portion (58, 66; 58a, 66a) is angled relative to a radial line (L) orthogonal to the roller rotation axis (A) and turned in the direction of rotation (R) of the roller (16; 16a) is, and / or at least one, preferably each Abstreiferorgan (56a) of at least one Abstreiferbereichs (58a) with respect to the radial line (L) angled and against the rotational direction (R) of the roller (16a) is employed. Soil cultivation machine according to claim 13, characterized in that at least one wiper member (56) of the first wiper portion (58) and at least one wiper member (64) of the second wiper portion (62) in the same direction, preferably in the direction of rotation (R) of the roller (16) , are hired. Soil cultivation machine according to claim 13 or 14, characterized in that at least one Abstreiferorgan (56a) of the first Abstreiferbereichs (58a) in a first direction, preferably opposite to the direction of rotation (R), employed and at least one Abstreiferorgan (64a) of the second Abstreiferbereichs (66a ) is employed in a second direction, preferably in the direction of rotation (R). Soil cultivation machine according to one of claims 13 to 15, characterized in that at least one preferably against the rotation direction (R) of the roller (16a) employed Abstreiferorgan (56a) a discharge device (98a) for discharging by the Abstreiferorgan (56a) of the roller ( 16a) is associated with released material in the direction away from the roller (16a). Soil cultivation machine according to one of claims 1 to 16, characterized in that at least one Verstaumontagebereich (104a) for releasably mounting at least one not on Abstreiferbalken (40a) mounted Abstreiferorgans (56a, 64a), preferably on a roller (16a) rotatably supporting machine frame ( 30a) is provided. A method of operating a soil tillage implement, in particular according to any one of the preceding claims, wherein when the soil tillage implement (10; 10a) is operated with a roller (16; 16a) having a substantially unstructured outer peripheral region (26; 26a) at least one of them And the scraper bar (40; 40a) with its first scraper area (58; 58a) in stripping interaction with the outer peripheral area (26; 26a). 16a), and when the tillage machine (10; 10a) is operated with a roller (16; 16a) having a textured outer peripheral portion (26; 26a), at least one stripper associated with said roller (16; 16a) (36, 38; 36a, 38a)) is configured and positioned such that the scraper bar (40; 40a) with its second wiper area (66; 66a) in wiping engagement with the outer peripheral area (26; 26a) of the roller (16; 16a). Method according to claim 18,
characterized in that for operation with a roller (16) with structured outer peripheral region (26) at least a first Abstreiferorgan (56) of the first Abstreiferbereichs (58) disassembled in the assembly / disassembly position Abstreiferbalken (40) of the scraper bar (40) and then the scraper bar (40) is positioned by a pivoting and / or sliding movement in its second operative position.

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