DE202009009451U1 - Roll body for a segmented roll - Google Patents

Abstract

Roller body for a segment roller at least consisting of:
- At least two rolling rings (1), wherein in each case between two rolling rings (1) a spacer (2) is arranged,
- Two end pieces (4) and two bearing pieces, each having a receptacle for a journal,
characterized in that
- The spacer (2) has a hollow rod-shaped structure,
- At least one tension element (3) is present, which is releasably attached to the end pieces (4), and
- The end pieces (4), the rolling rings (1) and the spacers (2) are at least positively and releasably connected to each other, wherein the rolling rings (1) and the spacers (2) form a hollow body and the body in the radial direction a closed Has contour.

Description

The The invention relates to a roller body for a Segmented roller, which is used in particular for tillage.

rolling Division According to the invention, at least two segments, in particular the Form roll body, these segments side by side are arranged. These segments, for example, roller rings, soil compaction rings or Packer rings called, regularly have one annular structure.

rolling Division have the advantage over smooth rollers, that they Ground only in the area of the segments and thus a deeper reaching Compaction achieve smooth rolling.

rolling Division usually serve as a support or tracking device to complex tillage combinations. Such combinations will be manufactured in different working widths and naturally require a in the working width of the combination adapted working width of the roller or of the roller body.

Of the necessary distance between the rolling rings can vary depending on differ from the application of the combination. So have to the rolling rings in combinations for stubble cultivation further apart stand as combinations for seedbed preparation.

At the Use in seedbed preparation serves the purpose of compacting the segments Ground strip as a seedbed. By the compression of the under the seed lying ground strip is the capillary connection of the seed secured to the soil water and thus the rapid germination and growth.

A made up of rolling rings and spacers segment roller basically creates the opportunity at the first fitting an adaptation both to the needed Distance between the rolling rings and the working width.

roll basically have the task of compacting loose soil and naturally are subject to a large one Rolling resistance overcome by the driving tractor must become. As the application of the tensile force by the tractor wheels especially in loose soil with poor efficiency and so that high energy consumption is connected, is a solution known to be operated in the rolling with a tractor to be operated Rotary drive are equipped.

roll especially on moist soil by Erdanhang clog. This can stall and thus the loss of functionality to lead. The risk of clogging can by appropriate constructive precautions are counteracted. The most important Method is the interior of the roll body so to conclude to the outside that no earth can penetrate.

From the DE 195 38 584 A1 is known a bottom roller, which consists of a plurality of tubular sub-segments, which are welded together at their end faces and thereby form a rigid roll shell (body). The sub-segments each have wedge-shaped elevations, which project beyond the roll shell to the outside and are arranged circumferentially on this. At the end faces of the roll mantle the bearing pins are arranged over plates. Stabilizing struts are welded to the inside of the roll mantle.

These Solution has the disadvantage that subsequently no change in the sizes, in particular the width of the bottom roller is possible. Furthermore is the repair of the bottom roller, for example, in case of a defect one of the sub-segments very complex and ineffective.

From the DE 33 24 157 C2 a roller-shaped soil cultivation device is known in which a beam formed as a central frame is equipped with an axis having one or both sides with flange-mounted annular elements corresponding flanges. These annular elements are packer rings and can be flanged to the axle or other packer ring by rod-shaped spacers. A disadvantage of this solution is due to the chosen structure difficult to realize stability, especially in multiple annular elements. In addition, contamination of the spaces between the annular elements is inevitable.

There are several solutions in which roller segments of various kinds are mounted on a support tube. ( DE 39 18 751 A1 . DE 89 15 811 U1 . DE 195 17 184 A1 . DE 195 38 585 A1 . DE 195 40 933 A1 . DE 102 15 477 A1 . DE 10 2006 022 536 A1 . DE 10 2006 022 537 A1 . DE 197 07 004 B4 ) All solutions have in common that the assembly of the segments by sliding on the pipe, in particular in the case of repair, in which the segments are slid on the support tube very sluggish, is very tedious and time consuming. This is particularly important if the segments are made of rubber hollow body and therefore very susceptible to damage by stones.

The object of the invention is to provide a roller body for a segment roller, which be a stable and structurally simple structure be is easy to dismantle and that can be slightly varied, especially with regard to the width. In addition, there should be an effective protection against contamination of the interior of the roll body.

The The object of the invention is solved by the features of claim 1.

essential to the invention is that the spacer is a hollow rod-shaped Structure has, at least one tension element is present, which is releasably secured to the end pieces, and the End pieces, the rolling rings and the spacers at least non-positively and releasably are connected, wherein the rolling rings and the spacers form a hollow body and the body in radial direction has a closed contour.

there For the purposes of the invention, the rolling rings and the spacers individually, certain groups, possibly in segments, d. H. especially several Roll rings and spacers, or all, non-positive and detachable by conventional fasteners, For example, screw, be connected.

alternative or additionally, these non-positive and detachable connection by at least one tension element, for example a threaded rod as a pull rod, be realized.

Of the inventive structure of the roller body and allows the use of only releasable connections it basically, where everyone, d. H. not only at the first fitting an adaptation both to the needed Distance between the rolling rings and the working width.

In order to is also a replacement of the defective in case of repair Component quickly and easily, d. H. also with the user of the segment roller, allows.

Furthermore is in addition to the repair and a conversion of the roller body basically possible.

Next different lengths of spacers can also different rolling rings, d. H. especially different with regard to shape, dimensioning, material and / or use and be used for a conversion.

In order to this modular system enables a sustainable additional effect; the variation width for the use of the roll body greatly expanded.

When releasable connection is a screw connection (threaded nut) preferred, other known types of connection also being of use can be found within the meaning of the invention.

The Components: Spacer and end piece should be as possible have a closed contour, in particular with the roller rings to be able to form a hollow and dirt-tight closed space.

The Subclaims 2 to 8 give further advantageous embodiments The invention according to claim 1 again, without this to limit.

Prefers is that the spacer is a tubular or box-shaped structure has. The spacer should be as complete as possible or at least partially be hollow inside to face a solid stick or cube to be lighter and more stable. Regarding the outer The contour of the spacer is therefore not just the classic one Tube shape includes.

Prefers is also that between the rolling ring and the spacer a positive connection exists. This can be the Increased stability of the roll body and the assembly can be facilitated.

The Features of sub claim 8 include a solution in the roller for the purpose of reducing the rolling resistance means a known rotary drive is driven. It is at least one roller ring and or at least one spacer rotatably connected to the output of a drive unit. through This drive unit can also on at least one side Storage of the roller body can be realized.

• a.) Auswahl der auf eine bestimmte Anwendung angepassten Breite des Grundkörpers, Form und Dimension des Walzen-Ringes, Dimensionierung der Distanzstücke sowie Art der lösbaren Verbindung,
• b.) Anordnung der Bauteile zum axialen Spannen, gruppenweise oder aller, ggf. unter Nutzung von Zentrierhilfen und
• c.) Axiales Verspannen aller Bauteile, ggf. vorheriges Verspannen einzelner Bauteile zu Gruppen und/oder Gesamtzentrierung, und Befestigung zumindest eines Zugelementes an den Endstücken.

The assembly of the roll body according to the invention can in principle be carried out in the following steps:

• a.) Selection of the width of the basic body adapted to a particular application, shape and dimension of the roller ring, dimensioning of the spacers and type of detachable connection,
• b.) Arrangement of the components for axial clamping, in groups or all, possibly using centering and
• c.) Axial clamping of all components, possibly previous clamping individual components into groups and / or total centering, and fastening at least one tension element to the end pieces.

The invention is explained in more detail below with reference to exemplary embodiments, without all the possible uses of the invention being exhaustive to have asked.

The Figures show:

1a a partial side view and in section of the roll body according to the invention after the axial clamping,

1b a view of the front side of the roll body according to the invention 1a .

2a a side view of an embodiment of the roller ring 1 .

2 B a view of the front side, partially in section of the roller ring 1 according to 2a , and

3a a side view of an embodiment of the tail 4 .

3b a view of the front side of the tail 4 , on average, according to 3a ,

1 shows a partial side view and in section of the roll body according to the invention 5 after the axial clamping by means of the tension elements 3 ,

In 1a are in a partial view of a roll body 5 nine of the roller rings 1 and nine of the spacers 2 represented, in each case between two rolling rings 1 a spacer 2 is arranged. (The roll body 5 In total, for example, eleven roller rings 1 , ten spacers 2 as well as two end pieces 4 own.) The spacers 2 each have a hollow rod-shaped structure, here a tubular structure. The spacers 2 with which the distance of the adjacent two roller rings 1 is determinable, here all are the same length; however, they can also differ.

At the outermost roller ring 1.1 is one of the two end pieces 4 arranged, in 1a only one tail 4 is shown. This is the tail 4 positive locking on roller rings 1.1 , there at reception 1.4 of the inner ring 1.3 at. The bottom area of all rolling rings 1 and the spacers 2 Each consists of an inelastic material, preferably made of steel, or other comparable materials, such as composites with a comparable stiffness to steel, in particular to achieve a rigid structure by bracing.

The six tension elements 3 , wherein in the sectional view according to 1a only three tension elements 3 are apparent are on the tail 4 releasably secured. For this purpose, at least at both ends of the rod-shaped tension elements 3 a threaded portion is present, which in installation position by corresponding holes of the tail 4 protrudes.

The releasable connection is here by a screw connection (Threaded nut) realized, with other known types of connection can also find a use in the context of the invention.

The two tails 4 , the rolling rings 1 and the spacers 2 are by the bracing, using the tension elements 3 , connected to each other at least non-positively and releasably, wherein the rolling rings 1 and the spacers 2 form a hollow body and the body in the radial direction has a closed contour.

The roller rings 1 have two seats in the floor area 1.4 for the axial positive connection with two spacers 2 or the tail 4 and a spacer 2 ,

The spacers 2 have, here tubular, in the radial direction, a closed surface (contour), ie there are no holes or other openings. This ensures that the rolling rings 1 and the spacers 2 form a pick up body and the body in the radial direction has a closed contour.

In 1b is a view of the front side of the roll body according to the invention 1a shown.

At the outermost roller rings 1.2 is one of the two end pieces 4 with bearing piece 6 arranged. The bearing piece 6 , In manner in a known design, each has a bearing receptacle for a journal.

The six tension elements 3 protrude through the tail 4 and are at the tail 4 releasably secured. The tail 4 owns after installation of the roller body 5 in a segment roller a closed surface (contour), so that the end pieces 4 , the rolling rings 1 and the spacers 2 form a hollow and dirt-tight closed space.

2a shows a side view of an embodiment of the roller ring 1 ,

The roller ring 1 has a circumferential outer ring 1.2 a circumferential inner ring 1.3 by spokes 1.5 , here six spokes, are firmly connected.

In the area of the inner ring 1.3 is located on one side of the roller ring 1 a recording 1.4 (the total of two shots 1.4 which are arranged symmetrically to each other).

The roller rings 1 thus possess in the soil area of the inner ring 1.3 two recording 1.4 for the axial positive connection with two spacers 2 or the tail 4 and a spacer 2 ,

2 B shows a view of the front side, partially in section of the roller ring 1 according to 2a ,

In the part of the view of the front side of the roller ring 1 are on the two flanks 1.21 and 1.22 of the wedge-shaped outer ring 1.2 staggered to each other 1.23 arranged.

In the part of the view of the front side of the roller ring 1 on average, both flanks 1.21 and 1.22 of the wedge-shaped outer ring 1.2 seen. The outer ring 1.2 is through the spoke 1.5 with the inner ring 1.3 connected.

3a shows a side view of an embodiment of the tail 4 ,

The symmetrical tail 4 has a central hole 4.1 as reception for the camp (in 3 not shown). There are also holes 4.2 , here are six holes 4.2 , present, passing the ends of the tension elements 3 (in 3 not shown) serve for clamping.

3b shows a view of the end face of the tail 4 , on average, according to 3a ,

In the area of the outer edge of the tail 4 is a rotating recording 4.3 arranged as a counterpart to the recording 1.4 of the roller ring 1 serves and a positive connection allows.

QUOTES INCLUDE IN THE DESCRIPTION

This list The documents listed by the applicant have been automated generated and is solely for better information recorded by the reader. The list is not part of the German Patent or utility model application. The DPMA takes over no liability for any errors or omissions.

Cited patent literature

• DE 19538584 A1 [0010]
• - DE 3324157 C2 [0012]
• DE 3918751 A1 [0013]
• - DE 8915811 U1 [0013]
• DE 19517184 A1 [0013]
• DE 19538585 A1 [0013]
• DE 19540933 A1 [0013]
• DE 10215477 A1 [0013]
• DE 102006022536 A1 [0013]
• - DE 102006022537 A1 [0013]
• - DE 19707004 B4 [0013]

Claims (8)

Roller body for a segment roller at least consisting of: - at least two rolling rings ( 1 ), in each case between two rolling rings ( 1 ) a spacer ( 2 ), - two end pieces ( 4 ) and two bearing pieces, each having a receptacle for a journal, characterized in that - the spacer ( 2 ) has a hollow rod-shaped construction, - at least one tension element ( 3 ), which at the end pieces ( 4 ) is releasably secured, and - the end pieces ( 4 ), the rolling rings ( 1 ) and the spacers ( 2 ) are connected to each other at least non-positively and releasably, wherein the rolling rings ( 1 ) and the spacers ( 2 ) form a hollow body and the body in the radial direction has a closed contour. Roll body according to claim 1, characterized in that the spacer ( 2 ) has a tubular or box-like construction. Roll body according to claim 1, characterized in that at least two rolling rings ( 1 ) are additionally connected to each other non-positively and releasably. Roll body according to claim 1, characterized in that in each case a bearing piece integrated into a tail. Roll body according to claim 1, characterized in that the bottom portion of the rolling ring ( 1 ) and the spacer ( 2 ) consists of an inelastic material, particularly preferably of steel or other comparable materials in this respect. Roller body according to claim 1, characterized in that between the rolling ring ( 1 ) and the spacer ( 2 ) a positive connection exists. Roll body according to claim 1, characterized in that the end pieces ( 4 ), the rolling rings ( 1 ) and the spacers ( 2 ) form a hollow and dirt-tight closed space. Roller body according to claim 1, characterized in that at least one roller ring ( 1 ), a spacer ( 2 ) and / or an end piece ( 4 ) rotatably with the output of a to drive the roller body ( 5 ) is connected so that the drive unit within the of the rolling rings ( 1 ) and the spacers ( 2 ) formed hollow body is arranged.