EP4098365A1 - Segment roller, in particular for crushing or compacting bulk material - Google Patents
Segment roller, in particular for crushing or compacting bulk material Download PDFInfo
- Publication number
- EP4098365A1 EP4098365A1 EP22175109.2A EP22175109A EP4098365A1 EP 4098365 A1 EP4098365 A1 EP 4098365A1 EP 22175109 A EP22175109 A EP 22175109A EP 4098365 A1 EP4098365 A1 EP 4098365A1
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- EP
- European Patent Office
- Prior art keywords
- segments
- segment
- roller
- roller shaft
- shaft
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/30—Shape or construction of rollers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B3/00—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs
- B30B3/005—Roll constructions
Definitions
- the invention relates to a new construction of rollers which consist of segments, in particular for crushing or compacting bulk material.
- the segmented roller is formed from a roller shaft and a roller shell.
- the segmented roller preferably has a one-piece roller shaft.
- the roll core can be separate or an integral part of the roll shaft or roll shell.
- the roll shell is made up of segments.
- Solid rolls can be manufactured as composite casting to achieve the required wear resistance. However, they usually consist of a forged part whose surface is protected by build-up welding or grid armor (hard metal pins with a material bed formed in between as autogenous wear protection). Nevertheless, due to the low material utilization, solid rollers are usually only used in the cement industry, where high pressing pressures but only low wear rates (e.g. 0.1-1.0g/t) are to be expected. The use of roller presses in the ore industry, where significantly higher wear rates of e.g. 3-10g/t occur despite lower pressing pressures, only became possible with the use of compound rollers.
- bandage rollers in which the roller shell is unsegmented ("bandage") and the forged part (with grid armoring by hard metal pins, sintered wear plates or build-up welding) or cast part (chilled cast iron or compound cast iron) is designed.
- DE°39°27°884°A1 discloses a segmented roller with complementary projections and recesses in the adjacent radially arranged segments and their entire body and surface, which result in radial toothing. These are clamped together and on the roller shaft with clamping elements via clamping screws and tie rods, which run axially through the roller shaft. In addition, there are those arranged axially in the roller shaft.
- the disadvantage here is that the roller must be removed or must have recesses in the housing wall of the roller crusher, which allow dismantling in the installed state. The manufacturing accuracies required to manufacture the segments and the roller shaft are considerable, so that the feather keys correspond to the grooves of the roller shaft and segments.
- DE°197°09°263°A1 represents a further development of this document and does not have any keys or keyways, but instead reduces the projections and recesses from the roller surface to the roller shaft and supplements them with axial rows of teeth.
- the accuracies for producing the receptacles for the tie rods, the protruding shoulders for the U-shaped clamping elements of the tie rods and the production of the shoulders and recesses of the segments relative to one another are complex and therefore expensive.
- the grinding roller in DE 3 915 320 A1 is also designed without keys and keyways and instead has sawtooth-shaped recesses on the roller body.
- the segments of the roller shell are attached to the roller body by means of fastening flanges or clamped to the roller body by means of axial clamping screws and clamping plate segments.
- DE°43°44°206°A1 shows clamping rings which are arranged axially on both sides of the segments in order to connect and arrange several segments axially with one another via tie rods that are passed through axially. Furthermore, keyways are provided in the roller body or roller shaft to fix the segments radially.
- a disadvantage here is the manufacturing accuracy required, so that the segments correspond radially to the feather keys and the feather key grooves and axially to the shoulder surfaces as a receptacle for the clamping rings and the tie rods guided thereby.
- DE°197°36°087°A1 claims a roller shaft of the dovetail keys that are arranged axially on this.
- the associated segments have undercut dovetail guide surfaces, which are arranged on the roll shaft in a wedge shape at an angle to the roll axis and have their maxima between two segments.
- the at least two segments each have at least one dovetail guide surface wedge are bolted and braced against each other on the wedge using expansion bolts.
- a disadvantage here is the manufacturing effort for the production of the dovetail pairing in the form of a double wedge.
- the segments can only be dismantled with difficulty or not at all with the roller installed, because the expansion bolts run through all the segments and the segments have to be pulled down axially.
- the segments are connected to the roller shaft with intermediate elements.
- the intermediate elements in turn, have white keyways that run axially and correspond to the roller shaft.
- the intermediate elements are screwed onto the roller shaft and the segments onto the intermediate elements.
- a disadvantage is the use of the intermediate elements with the feather keys and the feather key grooves opposite the roller shaft, which makes the construction complex and expensive. Added to this is the expense of the many bores and screw connections on the circumference of the roller shaft for securing the position of the intermediate elements, as well as their positioning against one another for inserting the screws. It is almost impossible to assemble the segments once they have been installed because the screws have to reach far into the segments and intermediate elements in the axial direction. The positioning of the segment bores over those of the intermediate elements appears to be just as difficult.
- the object of the present invention is therefore to overcome the disadvantage in the prior art.
- the individual steps of the method are listed in a simplified manner, whereby the segments can be placed, for example, by attaching the segments to a hoist or by using assembly handles that then enable people to move them.
- the positioning takes place as a smooth transition from the setting down of the segment over the roll core as a further step.
- Positioning aids such as fitting screws/sleeves are possible for optimal alignment of the segment on the roller core, or alignment is carried out flush with the assembly collar.
- a mounting collar is understood to be a shoulder that rests on the roller core and preferably runs completely around it. For this purpose, for example, the roller core is fixed and aligned under the respective segment by turning.
- assembly means are arranged, for example fixing the segments relative to the roll core by means of screws. Then the other segments according to the previous steps appropriate.
- the respective clamping elements are inserted radially. For example, a circumferential groove or several between two or more segments can be provided.
- These clamping elements are preferably clamping sets, which produce a clamping of the segments relative to one another and relative to the roller shaft. This bracing results in a positive and non-positive connection. This combination is considered to be very efficient.
- the clamping elements are slightly braced, then the position of the segments is checked, starting from a correct position, no further steps are to be taken and the assembly means are removed. This is followed by the final bracing of the segments and, if necessary, a final check of the position.
- the process of disassembling segments of the segment roll begins with placing mounting means on them. This secures the segments against the roller core during disassembly. This is followed by the loosening of the clamping elements, so that the clamping of the segments is released and the segments can be removed. Thanks to the mounting means, the segments remain in their position on the roller core. The tension existed between the segments among themselves and between the individual segments in relation to the roller core. After loosening the assembly means, they can be placed on the roll stub, for example, or removed from it. This is possible because the clamping elements are arranged radially on the end faces and their space requirement when removing them from the roll is small, which means that the roll does not have to be removed.
- eyelets for attachment or Attach assembly handles to the segment to be removed.
- the roller Before removing a segment, the roller should be positioned in such a way that it can be removed from the crusher or mill, for example, up or down. After that, the roller should preferably be secured in its position so that the respective segment can be safely removed after the assembly means have been loosened and removed. In this way, all segments located on the roll core can be removed from it or, if necessary, a single one.
- a segmented roller in particular for crushing or compacting bulk material, comprising at least one roller shaft, at least two segments and at least one radially arranged clamping element, the roller shaft being designed as an n-corner, in particular as a convex and/or regular n-corner, each multiple bearing segment bearing on the roller shaft and wherein the bearing surfaces form at least one common corner/transition of the roller shaft and bear on said surfaces.
- clamping elements are understood to mean those that have at least one conical surface and/or those that are designed to enable a non-positive shaft-hub connection, which can also be designed as a clamping set.
- the roller shaft designed as an n-corner preferably has an n-cornered cross-section that runs continuously in the axial direction.
- the bearing surfaces formed in this way are distributed n times rotationally symmetrically over the circumference of the shaft.
- the bearing surfaces preferably do not have any constructive elements such as keyways, dovetails or the like.
- a form fit between the roller shaft of the segmented roller can be achieved by multiple support across the corner with the at least two segments, this multiple support preferably being a triple support and the support surfaces following one another in the circumference.
- multiple support is understood to mean that at least two segments, preferably several segments, are arranged on the roll core and rest there on several support surfaces.
- the multiple support of the segments on the roller shaft is a double support, this double support resulting from at least two adjacent surfaces.
- the double support is characterized by adjacent surfaces, which are usually at 90 degrees to each other, which results in a superimposed positive connection for a higher-strength shaft-hub connection in addition to the frictional connection via the clamping elements.
- the at least one tensioning element lies radially in at least one groove on the end faces of the segments.
- the grooves can be provided in a circular manner in an end face, in which case the number of these grooves can vary; one groove is preferred.
- Other arrangements of the grooves can also be implemented, such as pitch circles between individual segments, with these pitch circles preferably overlapping one another so that closed prestressing towards the roll core is possible.
- Grooves arranged on both sides in the segments, which are arranged symmetrically on the end faces, are particularly preferred.
- the segments have an assembly means on at least one end face, whereby this can enclose the shape of the roller shaft, whereby this form can also be interrupted.
- the mounting means can be designed, for example, as screws that are carried by a mounting flange or mounting ring, without being limited to them.
- the assembly means are preferably provided in one piece and circumferentially on the respective segment. Designs deviating from this are conceivable, such as perforated, multi-part assembly means or assembly rings.
- the assembly means rest on the roll core or are just spaced from it. They are used for easy assembly/disassembly of the segments on the roller core.
- the assembly means are detachably or non-detachably connected to the respective segment.
- assembly means on the segments preferably designed as assembly flanges, are detachably connected to it, preferably screwed on. They can also be non-detachably connected, for example welded or forged.
- the assembly means of the segmented roller have openings for the detachable arrangement of the segments on the roller shaft.
- the segment is connected to the shaft via screws during assembly/disassembly and thereby secured.
- the segments have variable dimensions and material thicknesses, being made from different materials and combinations of materials.
- These materials are preferably metallic, such as cast or forged materials, and particularly preferably steels and their alloys.
- composite materials and sintered materials are understood as a combination of materials, without being limited to these.
- this is designed integrally from roller shaft and roller core.
- this roll shaft has connections and roll cores, which are integral parts of the roll shaft.
- the components are partially designed integrally and, for example, the roller core is shrunk onto the shaft with the connections.
- a further aspect of the invention relates to the use of a method according to the invention for assembling and/or dismantling a segmented roller according to the invention.
- the claimed method and/or the segmented roller prevent the washing out of screw bores in the case of radial attachment, because this can advantageously be dispensed with: If the segments are screwed radially to the base body, disassembly is possible without removing the rollers. However, due to the high pressing pressures, the counterbores are washed out. If the segments are only screwed to the edge of the roll, this in turn leads to an insufficient support of the segments.
- FIG 1 shows a schematic representation of an embodiment of a roller shaft 1 according to the invention, in which the roller shaft and roller core are designed integrally.
- the bearing surfaces of the roller shaft 10 can be seen here, on the outer areas of which the receptacles for the assembly means 11 are provided. Between the bearing surfaces are chamfers 12 arranged.
- the roller shaft has connections 13 and roller core 14 , these being integral parts of the roller shaft.
- the design of the roller shaft 1 shown here is suitable for receiving or forming the jacket over two as well as over four segments.
- figure 2 shows a schematic representation of a segment 2 according to the invention, here in the embodiment as a half-shell in the outside view. Shown are the bearing surfaces of segment 20, the bushings for assembly means 21, as well as a groove, here provided circumferentially, and the segment working surface 22. Segment 2 has two assembly means bushings 21 on each end face, with which this is secured on the roller shaft during the assembly/disassembly. The provided groove 5 serves to accommodate the clamping element(s).
- the design as a half shell, i.e. two segments on the roller shaft, is the minimum dimension for radial disassembly - but it can also be significantly more (e.g. four segments, see example in figure 4 ).
- the segment can be designed as a one-piece solid segment (e.g. chilled cast iron) or a multi-piece composite segment (with sintered wear plates, grid armor or build-up welding on the segment surface).
- the gap between adjacent segments must be dimensioned in such a way that material can settle there and thus achieve autogenous protection against wear and cannot flow away laterally, so that washing out in the gap area is prevented.
- figure 3 shows a schematic representation of an embodiment of a segment 2 according to the invention, here as a half-shell in the inside view.
- the bearing surfaces of the segment 20 can be clearly seen; in the case of half-shells, these are one full bearing surface and two half bearing surfaces.
- a groove 5 can be seen on each end face. These are used to hold clamping elements.
- the passages for the assembly means 21 can be seen, these are arranged twice on each end face.
- figure 4 shows a schematic representation of an embodiment of a segment 2 according to the invention, which can be seen here as a quarter shell in the outside view.
- a segment 2 according to the invention, which can be seen here as a quarter shell in the outside view.
- four segments are required on the circumference of the roll.
- a groove 5 is provided on each end face in this segment.
- Bearing surfaces 20 are each provided with a passage for mounting means 21 .
- the freely configurable work area of segment 22 is also shown here.
- figure 5 shows a schematic representation of an embodiment of a segment 2 according to the invention, which can be seen here as a quarter shell in the view from the inside.
- the two grooves 5 are also shown here, as are the four passages for assembly means 21. These are provided once in each bearing surface 20 and end face.
- FIG 6 shows a schematic representation of an embodiment of a segment roller according to the invention, this is shown here in section and in a perspective view.
- the figure shows the roller shaft 1, which is shown with hatching.
- a bearing 3 is arranged on the outer ends, with which the segment roller is supported and guided in a housing.
- This segment 2 has a radially circumferential groove 5 on each end face. In this groove 5 , a clamping element 6 is used and biased.
- the clamping element 6 is shown with hatching because it is designed to run all the way around and was therefore sectioned in the view.
- FIG 7 shows a schematic representation of an embodiment of a segment roller according to the invention, the segments 2 shown are half-shells in an exploded view of a segment roller.
- the roller shaft 1 is shown from the inside to the outside, on which two segments 2 with corresponding assembly means 4 are provided.
- the clamping elements 6 are shown axially outwards next to the segments 2. When installed, these are arranged in the grooves 5 and brace the segments 2 against one another and against the roller shaft 1.
- the bearings 3 are axially connected to the clamping elements 6 .
- figure 8 shows a schematic representation of an embodiment of a segment roller according to the invention, with half-shells in an isometric view. This should make it clear how the segments 2 are arranged assembled with the clamping elements 6 on the roller shaft 1 with the corresponding bearings 3 .
- the tensioning elements 6 generate a force when they are pretensioned, which tensions the segments 2 against the roller shaft 1 .
- FIG 9 shows a schematic representation of an embodiment of a segment roll according to the invention, with quarter shells in an exploded view.
- the four segments 2 all have a groove 5 on each face which serves to accommodate the clamping elements 6 .
- the contact surfaces on the roller shaft 1 have the passage or receptacle for the assembly means 4 on the end faces.
- the clamping elements 6 are arranged with which these braced against each other and the roller shaft 1 .
- the bearings 3 are shown, which guide the segmented roller in a housing, not shown here.
- FIG 10 shows a schematic representation of an embodiment of a segment roller according to the invention, here with quarter shells in an isometric view.
- the four segments 2 on the roller shaft 1 are shown, which are braced on this by means of the clamping elements 6 .
- the bearings 3 are shown, which are used for storage in a housing.
- the embodiment shown here shows the mounting means and the clamping elements 6 in the installed state. This is only intended for assembly or disassembly. In use, the mounting means are preferably removed again, which means that their position can be saved.
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Abstract
Die Erfindung betrifft ein Verfahren zur Montage als auch Demontage von Segmenten auf einer Walzenwelle. Diese Segmente sind dabei über mindestens ein Spannelement in einer dafür vorgesehenen Aufnahme mit der Walzenwelle verspannt und so in ihre Lage kraftschlüssig und formschlüssig verbunden.The invention relates to a method for assembling and disassembling segments on a roller shaft. These segments are clamped to the roller shaft via at least one clamping element in a receptacle provided for this purpose and are thus connected in their position in a non-positive and positive manner.
Description
Die Erfindung betrifft eine Neukonstruktion von Walzen, welche aus Segmenten bestehen, insbesondere zur Zerkleinerung oder Kompaktierung von Schüttgut.The invention relates to a new construction of rollers which consist of segments, in particular for crushing or compacting bulk material.
Die Zerkleinerung und Kompaktierung von Schüttgut erfolgt in Hochdruckwalzenmühlen (Rollenpressen) im Spalt zwischen zwei sich gegenläufig drehenden Glattwalzen. Diese bestehen aus Walzenwelle, Walzengrundkörper (Walzenkern) und Walzenmantel. Sind Welle, Grundkörper und Mantel einteilig ausgeführt, spricht man von Massivwalzen. Bei separatem Walzenmantel spricht man dagegen von Verbundwalzen.Bulk material is crushed and compacted in high-pressure roller mills (roller presses) in the gap between two counter-rotating smooth rollers. These consist of a roller shaft, roller body (roller core) and roller shell. If the shaft, base body and jacket are made in one piece, we speak of solid rollers. In the case of a separate roll shell, on the other hand, one speaks of composite rolls.
Im Sinne der vorliegenden Erfindung wird definiert, dass die Segmentwalze aus einer Walzenwelle und einem Walzenmantel gebildet wird. Die Segmentwalze weißt bevorzugt eine einteilige Walzenwelle auf. Der Walzenkern kann separat oder integraler Bestandteil von Walzenwelle oder Walzenmantel sein. Der Walzenmantel wird aus Segmenten gebildet.In terms of the present invention, it is defined that the segmented roller is formed from a roller shaft and a roller shell. The segmented roller preferably has a one-piece roller shaft. The roll core can be separate or an integral part of the roll shaft or roll shell. The roll shell is made up of segments.
Massivwalzen können als Verbundguss hergestellt werden, um die erforderliche Verschleißfestigkeit zu erreichen. Meist bestehen sie aber aus einem Schmiedeteil, dessen Oberfläche durch Auftragsschweißung oder Rasterpanzerung (Hartmetallstifte mit dazwischen ausgebildetem Materialbett als autogener Verschleißschutz) geschützt wird. Dennoch werden Massivwalzen aufgrund der geringen Werkstoffausnutzung meist nur in der Zementindustrie eingesetzt, wo zwar hohe Pressdrücke aber nur geringe Verschleißraten (z.B. 0,1-1,0g/t) zu erwarten sind. Der Einsatz von Rollenpressen in der Erzindustrie, wo trotz geringerer Pressdrücke oft deutlich höhere Verschleißraten von bspw. 3-10g/t auftreten, wurde erst durch den Einsatz von Verbundwalzen möglich. Weit verbreitet sind hierbei die Bandagenwalzen, bei denen der Walzenmantel unsegmentiert ist ("Bandage") und das Schmiedeteil (mit Rasterpanzerung durch Hartmetallstifte, gesinterten Verschleißplatten oder Auftragsschweißung) bzw. Gussteil (Hartguss oder Verbundguss) ausgeführt ist.Solid rolls can be manufactured as composite casting to achieve the required wear resistance. However, they usually consist of a forged part whose surface is protected by build-up welding or grid armor (hard metal pins with a material bed formed in between as autogenous wear protection). Nevertheless, due to the low material utilization, solid rollers are usually only used in the cement industry, where high pressing pressures but only low wear rates (e.g. 0.1-1.0g/t) are to be expected. The use of roller presses in the ore industry, where significantly higher wear rates of e.g. 3-10g/t occur despite lower pressing pressures, only became possible with the use of compound rollers. Widely used here are the bandage rollers, in which the roller shell is unsegmented ("bandage") and the forged part (with grid armoring by hard metal pins, sintered wear plates or build-up welding) or cast part (chilled cast iron or compound cast iron) is designed.
Die Mäntel von Bandagenwalzen sind allerdings nicht radial demontierbar, sodass eine Erneuerung verschlissener Walzenoberflächen den Ausbau der kompletten Walze erfordert und somit zu längeren Stillständen (Produktionsausfällen) und hohen Wechselkosten bzw Montageaufwendungen führt.However, the shells of drum rollers cannot be dismantled radially, so that replacing worn roller surfaces requires the complete roller to be removed, leading to longer downtimes (loss of production) and high replacement costs and assembly costs.
Aus dem Stand der Technik sind hierzu folgenden Schriften bekannt die sich mit segmentierten und radial demontierbaren Walzenmänteln befassen.The following documents are known from the prior art that deal with segmented and radially detachable roller shells.
Die DE°39°27°884°A1 offenbart eine Segmentwalze mit komplementären Ansätzen und Ausnehmungen in den benachbarten radial angeordneten Segmenten und deren gesamten Körper und Oberfläche die zu einer radialen Verzahnung führen. Diese werden über Spannschrauben und Zugankern, welche axial durch die Walzenwelle laufen, mit Klemmelementen miteinander und an der Walzenwelle verspannt. Hinzu kommen hier, die axial in der Walzenwelle angeordneten. Nachteilig ist hier, dass die Walze ausgebaut werden muss oder in der Gehäusewand des Walzenbrechers Ausnehmungen aufweisen muss, die eine Demontage im eingebauten Zustand ermöglichen. Die erforderlichen Fertigungsgenauigkeiten zur Herstellung der Segmente und der Walzenwelle sind erheblich, damit die Passfedern zu den Nuten von Walzenwelle und Segmente korrespondieren.DE°39°27°884°A1 discloses a segmented roller with complementary projections and recesses in the adjacent radially arranged segments and their entire body and surface, which result in radial toothing. These are clamped together and on the roller shaft with clamping elements via clamping screws and tie rods, which run axially through the roller shaft. In addition, there are those arranged axially in the roller shaft. The disadvantage here is that the roller must be removed or must have recesses in the housing wall of the roller crusher, which allow dismantling in the installed state. The manufacturing accuracies required to manufacture the segments and the roller shaft are considerable, so that the feather keys correspond to the grooves of the roller shaft and segments.
Die DE°197°09°263°A1 stellt eine Weiterbildung dieser Schrift dar und weist dazu keine Passfedern und Passfedernuten aus, sondern reduziert die Ansätze und Ausnehmungen von der Walzenoberfläche hin zum Walzenwelle und ergänzt diese durch axiale Zahnreihen. Nachteilig ist hier vergleichbar zu den bisher genannten, dass die Genauigkeiten zur Herstellung der Aufnahmen für die Zuganker, die vorspringenden Ansätze für die U-förmigen Klemmelemente der Zuganker und die Herstellung der Ansätze und Ausnehmungen der Segmente zueinander, aufwendig und damit teuer ist.DE°197°09°263°A1 represents a further development of this document and does not have any keys or keyways, but instead reduces the projections and recesses from the roller surface to the roller shaft and supplements them with axial rows of teeth. Comparable to the previously mentioned disadvantages here is that the accuracies for producing the receptacles for the tie rods, the protruding shoulders for the U-shaped clamping elements of the tie rods and the production of the shoulders and recesses of the segments relative to one another are complex and therefore expensive.
Die Mahlwalze in
Aus DE°43°44°206°A1 gehen Spannringe hervor die axial auf beiden Seiten der Segmente angeordnet werden, um über axial durchgeführte Zuganker mehrere Segmente axial miteinander zu verbinden und anzuordnen. Weiterhin sind Passfedernuten im Walzengrundkörper bzw. Walzenwelle vorgesehen, um die Segmente radial zu fixieren. Nachteilig sind hier die erforderlichen Fertigungsgenauigkeiten, damit die Segmente zu den Passfedern und den Passfedernuten radial korrespondieren und axial zu den Schulterflächen die als Aufnahme für die Spannringe und die dadurch geführten Zuganker.DE°43°44°206°A1 shows clamping rings which are arranged axially on both sides of the segments in order to connect and arrange several segments axially with one another via tie rods that are passed through axially. Furthermore, keyways are provided in the roller body or roller shaft to fix the segments radially. A disadvantage here is the manufacturing accuracy required, so that the segments correspond radially to the feather keys and the feather key grooves and axially to the shoulder surfaces as a receptacle for the clamping rings and the tie rods guided thereby.
DE°197°36°087°A1 beansprucht eine Walzenwelle der Schwalbenschwanz-Passfedern die axial auf diesem angeordnet sind. Die dazugehörigen Segmente weisen hinterschnittene Schwalbenschwanz-Führungsflächen auf, die auf der Walzenwelle schräg keilförmig zur Walzenachse und zwischen zwei Segmenten ihre Maxima aufweist, angeordnet sind. Die mindestens zwei Segmente je mindestens einem Schwalbenschanz-Führungsflächen-Keil werden mittels Dehnschrauben gegeneinander auf dem Keil verschraubt und verspannt. Nachteilig ist hier der fertigungstechnische Aufwand für die Herstellung der Schwalbenschwanz-Paarung in Doppelkeilform. Zudem ist eine Demontage der Segmente bei eingebauter Walze nur schwer oder gar nicht realisierbar, weil die Dehnschrauben durch alle Segmente verlaufen und die Segmente axial herunter zu ziehen sind.DE°197°36°087°A1 claims a roller shaft of the dovetail keys that are arranged axially on this. The associated segments have undercut dovetail guide surfaces, which are arranged on the roll shaft in a wedge shape at an angle to the roll axis and have their maxima between two segments. The at least two segments each have at least one dovetail guide surface wedge are bolted and braced against each other on the wedge using expansion bolts. A disadvantage here is the manufacturing effort for the production of the dovetail pairing in the form of a double wedge. In addition, the segments can only be dismantled with difficulty or not at all with the roller installed, because the expansion bolts run through all the segments and the segments have to be pulled down axially.
In DE°10°2007°032°261°A1 ist offenbart, dass die Segmente mit Zwischenelementen mit der Walzenwelle verbunden sind. Die Zwischenelemente wiederum weißen Passfedernuten auf, die zur axial verlaufen und mit der Walzenwelle korrespondieren. Die Zwischenelemente werden auf die Walzenwelle geschraubt und die Segmente auf die Zwischenelemente. Nachteilig ist die Verwendung der Zwischenelemente mit den Passfedern und den Passfedernuten gegenüberder Walzenwelle, dies macht die Konstruktion aufwendig und teuer. Hinzu kommt der Aufwand für die vielen Bohrungen und Verschraubungen auf dem Umfang der Walzenwelle für die Lagesicherung der Zwischenelemente, sowie deren Positionierung gegeneinander zum Einbringen der Schrauben. Die Montage der Segmente ist im eingebauten Zustand nahezu unmöglich, weil die Schrauben axial weit in die Segmente und Zwischenelemente reichen müssen. Die Positionierung der Segmentbohrungen über denen der Zwischenelemente erscheint dabei genauso schwierig.In DE°10°2007°032°261°A1 it is disclosed that the segments are connected to the roller shaft with intermediate elements. The intermediate elements, in turn, have white keyways that run axially and correspond to the roller shaft. The intermediate elements are screwed onto the roller shaft and the segments onto the intermediate elements. A disadvantage is the use of the intermediate elements with the feather keys and the feather key grooves opposite the roller shaft, which makes the construction complex and expensive. Added to this is the expense of the many bores and screw connections on the circumference of the roller shaft for securing the position of the intermediate elements, as well as their positioning against one another for inserting the screws. It is almost impossible to assemble the segments once they have been installed because the screws have to reach far into the segments and intermediate elements in the axial direction. The positioning of the segment bores over those of the intermediate elements appears to be just as difficult.
Nachteilig am Stand der Technik ist, dass die offenbarten Segmentwalzen sich bisher aufgrund der beschriebenen Merkmale bzw. deren Nachteile und der folgenden Auflistung nicht durchsetzen konnten:
- Unzureichende Anlage und fehlender Freiraum bei axialer Befestigung mit Zugankern: Hierbei werden die Segmente durch Klammern auf beiden Seiten der Walze festgehalten. Die Klammern sind dabei gegeneinander über Zuganker, die durch die komplette Walze gehen, verspannt. Im eingebauten Zustand fehlt der axiale Freiraum zur Demontage der Zuganker. Bei breiteren Walzen kommt noch hinzu, dass diese in der Walzenmitte nicht satt aufliegen und es somit zu Mikrobewegungen kommt.
- Fehlender Freiraum und erhöhter Demontageaufwand bei axialer Befestigung mit Schwalbenschwanzführung: Hierbei liegen die Segmente satt auf, benötigen aber ebenfalls lange, sich axial erstreckende Schrauben zur Befestigung. Eine Demontage ist auch hier nur durch Ausbau der kompletten Walze möglich.
- Inadequate contact and lack of space when axially fixed with tie rods: The segments are held in place by clamps on both sides of the roller. The clamps are braced against each other via tie rods that go through the entire roller. When installed, there is no axial clearance for dismantling the tie rods. In the case of wider rollers, there is also the fact that they do not lie snugly in the middle of the roller, which leads to micro-movements.
- A lack of free space and increased disassembly effort with axial fastening with dovetail guides: Here the segments lie snugly, but also require long, axially extending screws for fastening. Here, too, dismantling is only possible by removing the entire roller.
Die Aufgabe der vorliegenden Erfindung besteht daher darin, den Nachteil im Stand der Technik zu überwinden.The object of the present invention is therefore to overcome the disadvantage in the prior art.
Die Aufgabe wird durch die Merkmale der unabhängigen Ansprüche gelöst. Vorteilhafte Ausgestaltungen sind in den abhängigen Ansprüchen angegeben.The object is solved by the features of the independent claims. Advantageous configurations are specified in the dependent claims.
Erfindungsgemäß wird ein Verfahren zur Montage von Segmenten auf einer Walzenwelle, umfassend folgende Schritte:
- I. Aufsetzen eines ersten Segmentes auf eine Walzenwelle,
- II. Positionieren des Segmentes durch Ausrichten der Auflageflächen des Segmentes auf die entsprechenden korrespondierenden Gegenstücke der Walzenwelle zur Mehrfach- oder Doppelauflage,
- III. Anordnen von mindestens einem Montagemittel an dem Segment zur Lagesicherung,
- IV. Aufsetzen mindestens eines zweiten Segmentes auf die Walzenwelle,
- V. Positionieren des zweiten Segmentes durch Auflegen der Auflageflächen auf die entsprechenden korrespondierenden Gegenstücke der Walzenwelle,
- VI. Anordnen von mindestens einem Montagemittel an das mindestens eine weitere Segment zur Lagefixierung,
- VII. Einbringen mindestens eines Spannelementes in mindestens eine radial angeordnete, zur Aufnahme geeigneten konstruktiven Ausgestaltung in den mindestens zwei Segmenten auf der Walzenwelle,
- VIII. Verspannen der eingebrachten Spannelemente zur Lagefixierung der Segmente zueinander und gegenüber der Walzenwelle,
- IX. Entfernen des mindestens einen Montagemittels.
- I. Placing a first segment on a roller shaft,
- II. Positioning of the segment by aligning the bearing surfaces of the segment with the corresponding counterparts of the roller shaft for multiple or double bearing,
- III. arranging at least one mounting means on the segment to secure the position,
- IV. Placing at least a second segment on the roller shaft,
- V. Positioning of the second segment by placing the bearing surfaces on the corresponding counterparts of the roller shaft,
- VI. arranging at least one assembly means on the at least one further segment for position fixing,
- VII. Introduction of at least one clamping element in at least one radially arranged structural configuration suitable for receiving in the at least two segments on the roller shaft,
- VIII. Tensioning of the inserted tensioning elements to fix the position of the segments in relation to one another and in relation to the roller shaft,
- IX. Removing the at least one mounting means.
Die einzelnen Schritte des Verfahrens sind vereinfacht aufgelistet, wobei das Aufsetzen beispielsweise durch ein Anschlagen der Segmente an ein Hebezeug erfolgen kann oder durch Montagegriffe die dann ein Bewegen durch Menschen ermöglichen. Das Positionieren erfolgt dabei als fließender Übergang vom Absetzen des Segmentes über dem Walzenkern als weiterführender Schritt. Zur optimalen Ausrichtung des Segmentes auf dem Walzenkern sind beispielsweise Positionierhilfen wie Passschrauben/-hülsen möglich oder die Ausrichtung erfolgt fluchtend über den Montagekranz. Wobei unter Montagekranz eine Schulter, die auf dem Walzenkern aufliegt und bevorzugt vollständig umlaufend um diesen verläuft, verstanden wird. Dazu ist beispielsweise der Walzenkern fixiert und durch drehen ausgerichtet unter dem jeweiligen Segment. Nachdem das Positionieren abgeschlossen ist und das jeweilige Segment lagerichtig auf dem Walzenkern aufliegt, erfolgt eine Anordnung von Montagemitteln, beispielsweise Fixierung der Segmente gegenüber dem Walzenkern mittels Schrauben. Anschließend werden die weiteren Segmente entsprechend der vorangegangenen Schritte angebracht. Wenn alle Segmente in ihrer Lage fixiert sind, erfolgt die radiale Einbringung der jeweiligen Spannelemente. Dafür können beispielsweise eine umlaufende Nut oder mehrere zwischen zwei oder mehreren Segmenten vorgesehen sein. Diese Spannelemente sind bevorzugt Spannsätze, die eine Verspannung der Segmente zueinander und gegenüber der Walzenwelle erzeugen. Mittels dieser Verspannung erfolgt ein Form- und Kraftschluss. Diese Kombination ist als sehr effizient angesehen. Die Spannelemente werden in der Praxis beispielsweise leicht verspannt, dann die Position der Segmente kontrolliert, ausgehend von einer korrekten Position ist von weiteren Schritten abzusehen und es erfolgt das Entfernen der Montagemittel. Im Anschluss erfolgt die finale Verspannung der Segmente und im Bedarfsfall eine abschließende Kontrolle der Position.The individual steps of the method are listed in a simplified manner, whereby the segments can be placed, for example, by attaching the segments to a hoist or by using assembly handles that then enable people to move them. The positioning takes place as a smooth transition from the setting down of the segment over the roll core as a further step. Positioning aids such as fitting screws/sleeves are possible for optimal alignment of the segment on the roller core, or alignment is carried out flush with the assembly collar. A mounting collar is understood to be a shoulder that rests on the roller core and preferably runs completely around it. For this purpose, for example, the roller core is fixed and aligned under the respective segment by turning. After the positioning is complete and the respective segment rests in the correct position on the roll core, assembly means are arranged, for example fixing the segments relative to the roll core by means of screws. Then the other segments according to the previous steps appropriate. When all segments are fixed in their position, the respective clamping elements are inserted radially. For example, a circumferential groove or several between two or more segments can be provided. These clamping elements are preferably clamping sets, which produce a clamping of the segments relative to one another and relative to the roller shaft. This bracing results in a positive and non-positive connection. This combination is considered to be very efficient. In practice, for example, the clamping elements are slightly braced, then the position of the segments is checked, starting from a correct position, no further steps are to be taken and the assembly means are removed. This is followed by the final bracing of the segments and, if necessary, a final check of the position.
Das Verfahren ermöglicht in einer Weiterbildung, die Demontage von bereits montierten Segmenten, auf einer Walzenwelle, umfassend folgenden Schritte:
- I. Anordnen von mindestens einem Montagemittel an den vorhandenen mindestens zwei Segmenten zur Lagesicherung,
- II. Lösen der eingebrachten und vorgespannten Spannelemente,
- III. Entfernen der Spannelemente und ablegen auf der Walzenwelle oder neben der Walze,
- IV. Lösen des mindestens einen Montagemittels eines ersten Segmentes,
- V. Entfernen des ersten Segmentes von der Walzenwelle,
- VI. Lösen des mindestens einen Montagemittels mindestens eines zweiten Segmentes,
- VII. Entfernen des zweiten Segmentes von der Walzenwelle,
- VIII. Wiederholen der Schritte VI und VII bis zur vollständigen Demontage aller zu entfernenden Segmente.
- I. arranging at least one mounting means on the existing at least two segments to secure the position,
- II. loosening the introduced and prestressed clamping elements,
- III. Remove the clamping elements and place them on the roller shaft or next to the roller,
- IV. Detaching the at least one assembly means of a first segment,
- V. removing the first segment from the roller shaft,
- VI. Detaching the at least one assembly means of at least one second segment,
- VII. Removing the second segment from the roller shaft,
- VIII. Repeat steps VI and VII until complete disassembly of all segments to be removed.
Dass Verfahren der Demontage von Segmenten der Segmentwalze beginnt mit dem Anordnen von Montagemitteln an diesen. Damit sind die Segmente gegenüber dem Walzenkern während der Demontage gesichert. Daran schließt sich das Lösen der Spannelemente an, damit ist die Verspannung der Segmente aufgehoben und die Segmente lassen sich entfernen. Die Segmente bleiben dank der Montagemittel in ihrer Position auf dem Walzenkern. Die Verspannung bestand zwischen den Segmenten untereinander und der einzelnen gegenüber dem Walzenkern. Nach dem Lösen der Montagemittel lassen sich diese beispielsweise auf dem Walzenstumpf ablegen oder davon entfernt. Dies ist möglich, weil die Spannelemente radial an den Stirnseiten angeordnet sind und ihr Platzbedarf beim Entfernen von der Walze klein ist, was keinen Ausbau der Walze erforderlich macht. Im Anschluss lassen sich bevorzugt Ösen zum Anschlagen oder Montagegriffe an das zu entnehmende Segment anbringen. Die Walze sollte vor Entnahme eines Segmentes so positioniert sein, dass dieses nach oben oder unten aus dem beispielsweise Brecher oder der Mühle entnommen werden kann. Danach ist die Walze bevorzugt in ihrer Position zu sichern, damit das jeweilige Segment gefahrlos entnommen werden kann, nachdem die Montagemittel gelöst und entfernt wurden. So lassen sich alle am Walzenkern befindlichen Segmente von diesem entfernen oder im Bedarfsfall ein einzelnes.The process of disassembling segments of the segment roll begins with placing mounting means on them. This secures the segments against the roller core during disassembly. This is followed by the loosening of the clamping elements, so that the clamping of the segments is released and the segments can be removed. Thanks to the mounting means, the segments remain in their position on the roller core. The tension existed between the segments among themselves and between the individual segments in relation to the roller core. After loosening the assembly means, they can be placed on the roll stub, for example, or removed from it. This is possible because the clamping elements are arranged radially on the end faces and their space requirement when removing them from the roll is small, which means that the roll does not have to be removed. Afterwards, eyelets for attachment or Attach assembly handles to the segment to be removed. Before removing a segment, the roller should be positioned in such a way that it can be removed from the crusher or mill, for example, up or down. After that, the roller should preferably be secured in its position so that the respective segment can be safely removed after the assembly means have been loosened and removed. In this way, all segments located on the roll core can be removed from it or, if necessary, a single one.
Erfindungsgemäß wird eine Segmentwalze, insbesondere zur Zerkleinerung oder Kompaktierung von Schüttgut umfassend mindestens eine Walzenwelle, mindestens zwei Segmente und mindestens ein radial angeordnetes Spannelement vorgeschlagen, wobei die Walzenwelle als n-Eck, insbesondere als konvexes und/oder regelmäßiges n-Eck, ausgeführt ist, wobei jedes Segment mit Mehrfachauflagen auf der Walzenwelle aufliegt, und wobei die Auflageflächen mindestens eine gemeinsame Ecke/Übergang der Walzenwelle bilden und auf diesen Flächen aufliegen.According to the invention, a segmented roller is proposed, in particular for crushing or compacting bulk material, comprising at least one roller shaft, at least two segments and at least one radially arranged clamping element, the roller shaft being designed as an n-corner, in particular as a convex and/or regular n-corner, each multiple bearing segment bearing on the roller shaft and wherein the bearing surfaces form at least one common corner/transition of the roller shaft and bear on said surfaces.
Im weitesten Sinne der Erfindung werden unter Spannelementen solche verstanden, die mindestens über eine kegelige Fläche verfügen oder/und solche, die ausgeführt sind eine kraftschlüssige Welle-Nabe-Verbindung zu ermöglichen, wobei diese auch als Spannsatz ausgeführt sein können.In the broadest sense of the invention, clamping elements are understood to mean those that have at least one conical surface and/or those that are designed to enable a non-positive shaft-hub connection, which can also be designed as a clamping set.
Die als n-Eck ausgeführte Walzenwelle weist bevorzugt einen n-eckigen Querschnitt auf, der in axialer Richtung stetig verläuft. Die so ausgebildeten Auflageflächen sind n-mal rotationssymmetrisch über den Umfang der Welle verteilt. Die Auflageflächen weisen bevorzugt keine konstruktiven Elemente wie beispielsweise Passfedernut, Schwalbenschwanz oder vergleichbares auf.The roller shaft designed as an n-corner preferably has an n-cornered cross-section that runs continuously in the axial direction. The bearing surfaces formed in this way are distributed n times rotationally symmetrically over the circumference of the shaft. The bearing surfaces preferably do not have any constructive elements such as keyways, dovetails or the like.
In Ausführungsformen der Erfindung ist ein Formschluss zwischen der Walzenwelle der Segmentwalze durch Mehrfachauflage über Eck mit den mindestens zwei Segmenten zu erreichen, wobei diese Mehrfachauflage bevorzugt eine Dreifachauflage ist und wobei die Auflageflächen aufeinander im Umfang folgen.In embodiments of the invention, a form fit between the roller shaft of the segmented roller can be achieved by multiple support across the corner with the at least two segments, this multiple support preferably being a triple support and the support surfaces following one another in the circumference.
Im Sinne der Erfindung wird unter Mehrfachauflage verstanden, dass mindestens zwei Segmente, bevorzugt mehrere Segmente, auf dem Walzenkern angeordnet sind und dort auf mehreren Auflageflächen aufliegen.For the purposes of the invention, multiple support is understood to mean that at least two segments, preferably several segments, are arranged on the roll core and rest there on several support surfaces.
In Ausführungsformen der Erfindung der Segmentwalze ist die Mehrfachauflage der Segmente auf der Walzenwelle eine Doppelauflage, wobei diese Doppelauflage aus mindestens zwei benachbarten Flächen resultiert.In embodiments of the invention of the segment roller, the multiple support of the segments on the roller shaft is a double support, this double support resulting from at least two adjacent surfaces.
Die Doppelauflage zeichnet sich durch benachbarte Flächen aus, die üblicherweise 90 Grad zueinanderstehen, dadurch ergibt sich zum Reibschluss über die Spannelemente noch ein überlagerter Formschluss für eine höherfeste Welle-Nabe-Verbindung.The double support is characterized by adjacent surfaces, which are usually at 90 degrees to each other, which results in a superimposed positive connection for a higher-strength shaft-hub connection in addition to the frictional connection via the clamping elements.
In Ausführungsformen der Erfindung der Segmentwalze liegt das mindestens eine Spannelement radial in mindestens einer Nut auf den Stirnseiten der Segmente ein. Diese Spannelemente drücken mittels Reibschluss die Segmente gegen den Wellenkern, wobei diese im Einsatz vorgespannt sind.In embodiments of the invention of the segmented roller, the at least one tensioning element lies radially in at least one groove on the end faces of the segments. These clamping elements press the segments against the shaft core by means of frictional engagement, whereby these are pretensioned during use.
Die Nuten können dafür kreisrund in einer Stirnseite vorgesehen sein, wobei die Anzahl dieser Nuten variieren kann, bevorzugt ist eine Nut. Weitere Anordnungen der Nuten sind ebenso realisierbar, wie Teilkreise zwischen einzelnen Segmenten, wobei diese Teilkreise einander bevorzugt überlappen, damit eine geschlossene Vorspannung zum Walzenkern hin möglich ist. Besonders bevorzugt sind beidseitig in den Segmenten angeordnete Nuten, die symmetrisch auf den Stirnseiten angeordnet sind. Je nach Walzenbreite ist es dabei möglich, ein- oder mehrreihige Spannsätze an beiden Rändern der Walze zu verbauen und die Segmente mit entsprechenden Wanddicken auszuführen, um auch den hohen Pressdrücken in der Walzenmitte standzuhalten.For this purpose, the grooves can be provided in a circular manner in an end face, in which case the number of these grooves can vary; one groove is preferred. Other arrangements of the grooves can also be implemented, such as pitch circles between individual segments, with these pitch circles preferably overlapping one another so that closed prestressing towards the roll core is possible. Grooves arranged on both sides in the segments, which are arranged symmetrically on the end faces, are particularly preferred. Depending on the roll width, it is possible to install single or multi-row clamping sets on both edges of the roll and to design the segments with appropriate wall thicknesses in order to withstand the high pressing pressures in the middle of the roll.
In Ausführungsformen der Erfindung der Segmentwalze weisen die Segmente auf mindestens einer Stirnseite ein Montagemittel auf, wobei dieses die Form der Walzenwelle umschließen kann, wobei diese Form auch unterbrochen sein kann.In embodiments of the invention of the segmented roller, the segments have an assembly means on at least one end face, whereby this can enclose the shape of the roller shaft, whereby this form can also be interrupted.
Die Montagemittel können im Sinne der Erfindung als beispielsweise Schrauben die von einem Montageflansch oder Montagekranz getragen werden, ausgebildet sein, ohne darauf beschränkt zu sein. Die Montagemittel sind bevorzugt einteilig und umlaufend an dem jeweiligen Segment vorgesehen. Denkbar sind davon abweichende Gestaltungen, wie durchbrochene mehrteilige Montagemittel bzw. Montagekränze.Within the meaning of the invention, the mounting means can be designed, for example, as screws that are carried by a mounting flange or mounting ring, without being limited to them. The assembly means are preferably provided in one piece and circumferentially on the respective segment. Designs deviating from this are conceivable, such as perforated, multi-part assembly means or assembly rings.
Die Montagemittel liegen auf dem Walzenkern auf oder sind knapp zu diesem beabstandet. Sie dienen der einfachen Montage/Demontage der Segmente auf dem Walzenkern.The assembly means rest on the roll core or are just spaced from it. They are used for easy assembly/disassembly of the segments on the roller core.
In Ausführungsformen der Erfindung sind die Montagemittel lösbar oder nichtlösbar mit dem jeweiligen Segment verbunden.In embodiments of the invention, the assembly means are detachably or non-detachably connected to the respective segment.
Diese Montagemittel an den Segmenten, bevorzugt als Montageflansche ausgeführt, sind mit diesem lösbar verbunden, bevorzugt angeschraubt. Ebenso können diese nichtlösbar verbunden sein, beispielsweise angeschweißt oder angeschmiedet.These assembly means on the segments, preferably designed as assembly flanges, are detachably connected to it, preferably screwed on. They can also be non-detachably connected, for example welded or forged.
In Ausführungen der Erfindung weisen die Montagemittel der Segmentwalze Öffnungen zur lösbaren Anordnung der Segmente auf der Walzenwelle auf.In embodiments of the invention, the assembly means of the segmented roller have openings for the detachable arrangement of the segments on the roller shaft.
Über diese ist das Segment über Schrauben bei der Montage/Demontage mit der Welle verbunden und dadurch gesichert.The segment is connected to the shaft via screws during assembly/disassembly and thereby secured.
In Ausführungsformen der Erfindung der Segmentwalze weisen die Segmente variable Abmaße und Materialstärken auf, wobei diese aus verschiedenen Materialien und Materialkombinationen hergestellt sind.In embodiments of the invention of the segmented roller, the segments have variable dimensions and material thicknesses, being made from different materials and combinations of materials.
Diese Materialen sind bevorzugt metallisch, wie Guss oder Schmiedewerkstoffe und besonders bevorzugt Stähle und deren Legierungen. Als Materialkombination werden im Sinne der Erfindung Verbundwerkstoffe und Sinterwerkstoffe verstanden, ohne auf diese beschränkt zu sein.These materials are preferably metallic, such as cast or forged materials, and particularly preferably steels and their alloys. In the context of the invention, composite materials and sintered materials are understood as a combination of materials, without being limited to these.
In Ausführungsformen der Erfindung der Segmentwalze ist diese integral aus Walzenwelle und Walzenkern ausgeführt. Somit weist diese Walzenwelle Anschlüsse und Walzenkerne auf, wobei diese integrale Bestandteile der Walzenwelle sind. In einer weiteren Ausführungsform der Erfindung sind die Bestandteile teilweise integral ausgeführt und beispielsweise der Walzenkern auf die Welle mit den Anschlüssen geschrumpft.In embodiments of the invention of the segmented roller, this is designed integrally from roller shaft and roller core. Thus, this roll shaft has connections and roll cores, which are integral parts of the roll shaft. In a further embodiment of the invention, the components are partially designed integrally and, for example, the roller core is shrunk onto the shaft with the connections.
Ein weiterer Aspekt der Erfindung betrifft die Verwendung eines erfindungsgemäßen Verfahrens zur Montage und oder Demontage einer erfindungsgemäßen Segmentwalze.A further aspect of the invention relates to the use of a method according to the invention for assembling and/or dismantling a segmented roller according to the invention.
Weiterhin als Aspekt der Erfindung ist die Verwendung einer erfindungsgemäßen Segmentwalze unter Verwendung eines erfindungsgemäßen Verfahrens vorgesehen.Furthermore, as an aspect of the invention, the use of a segmented roller according to the invention using a method according to the invention is provided.
Das beanspruchte Verfahren und oder die Segmentwalze verhindern in einer der beanspruchten Ausführungsform das Auswaschen von Schraubenbohrungen bei radialer Befestigung, weil auf diese vorteilhaft zu verzichten ist: Werden die Segmente radial mit dem Grundkörper verschraubt, ist eine Demontage ohne Ausbau der Walzen möglich. Allerdings kommt es aufgrund der hohen Pressdrücke zum Auswaschen der Senkbohrungen. Werden die Segmente nur am Walzenrand verschraubt, führt dies wiederum zu einer unzureichenden Auflage der Segmente.In one of the claimed embodiments, the claimed method and/or the segmented roller prevent the washing out of screw bores in the case of radial attachment, because this can advantageously be dispensed with: If the segments are screwed radially to the base body, disassembly is possible without removing the rollers. However, due to the high pressing pressures, the counterbores are washed out. If the segments are only screwed to the edge of the roll, this in turn leads to an insufficient support of the segments.
Die Nachteile aus dem Stand der Technik werden durch das beanspruchte Verfahren und/oder die Segmentwalze überwunden.The disadvantages of the prior art are overcome by the claimed method and/or the segmented roller.
Nachfolgend soll die Erfindung anhand eines Ausführungsbeispiels eingehender erläutert werden. Das Ausführungsbeispiel soll dabei die Erfindung beschreiben ohne diese zu beschränken.The invention will be explained in more detail below using an exemplary embodiment. The exemplary embodiment is intended to describe the invention without restricting it.
Dabei zeigt
-
Fig. 1 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Walzenwelle, -
Fig. 2 eine schematische Darstellung einer erfindungsgemäßen Ausführung eines Segmentes, Halbschale-Außenseitenansicht, -
Fig. 3 eine schematische Darstellung einer erfindungsgemäßen Ausführung eines Segmentes, Halbschale-Innenseitenansicht, -
Fig. 4 eine schematische Darstellung einer erfindungsgemäßen Ausführung eines Segmentes, Viertelschale-Außenseitenansicht, -
Fig. 5 eine schematische Darstellung einer erfindungsgemäßen Ausführung eines Segmentes, Viertelschale-Innenseitensicht, -
Fig. 6 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Segmentwalze, Schnittansicht, -
Fig. 7 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Segmentwalze, Halbschale-Explosionsansicht, -
Fig. 8 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Segmentwalze, Halbschale-Isoansicht, -
Fig. 9 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Segmentwalze, Viertelschale-Explosionsansicht, -
Fig. 10 eine schematische Darstellung einer erfindungsgemäßen Ausführung einer Segmentwalze, Viertelschale-Explosionsansicht.
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1 a schematic representation of an embodiment of a roller shaft according to the invention, -
2 a schematic representation of an embodiment of a segment according to the invention, half-shell outside view, -
3 a schematic representation of an embodiment of a segment according to the invention, half-shell inside view, -
4 a schematic representation of an embodiment of a segment according to the invention, quarter-shell outside view, -
figure 5 a schematic representation of an embodiment of a segment according to the invention, quarter-shell inside view, -
6 a schematic representation of an embodiment of a segment roller according to the invention, sectional view, -
7 a schematic representation of an embodiment of a segment roller according to the invention, half-shell exploded view, -
8 a schematic representation of an embodiment of a segment roller according to the invention, half-shell iso view, -
9 a schematic representation of an embodiment of a segment roller according to the invention, quarter-shell exploded view, -
10 a schematic representation of an embodiment of a segment roller according to the invention, quarter-shell exploded view.
- 11
- Walzenwelle, Walzenkernroller shaft, roller core
- 22
- Segmentsegment
- 33
- Lagerwarehouse
- 44
- Montagemittelmounting means
- 55
- Nutgroove
- 66
- Spannelementclamping element
- 1010
- Auflagefläche WalzenwelleBearing surface of roller shaft
- 1111
- Montagemittel AufnahmeMounting means recording
- 1212
- Auflageflächen FaseBearing surfaces chamfer
- 1313
- Walzenwelle Anschluss, integralRoller shaft connection, integral
- 1414
- Walzenwelle-Walzenkern, integralRoller shaft-roller core, integral
- 2020
- Auflagefläche SegmentBearing surface segment
- 2121
- Montagemittel Durchführungassembly means execution
- 2222
- Segment Arbeitsflächeworkspace segment
Claims (13)
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DE102021114404.3A DE102021114404B4 (en) | 2021-06-03 | 2021-06-03 | Segment roller, especially for crushing or compacting bulk material |
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DE102022001978A1 (en) | 2022-06-08 | 2023-12-14 | ALLRECO GmbH | Rotating device |
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US1565842A (en) * | 1922-04-04 | 1925-12-15 | Westinghouse Electric & Mfg Co | Grinder roll |
DE3915320A1 (en) | 1989-05-10 | 1990-11-15 | Krupp Polysius Ag | GRINDING ROLLER |
DE3927884A1 (en) * | 1989-08-23 | 1991-02-28 | Krupp Polysius Ag | MACHINE FOR COMPACTING AND / OR CRUSHING PROPERTY GOODS |
DE19709263A1 (en) * | 1997-03-06 | 1998-09-10 | Krupp Polysius Ag | Roller for grinding mill |
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CN101428244A (en) * | 2008-12-19 | 2009-05-13 | 吴兆忠 | Assembled single-roller sand producer apparatus |
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2021
- 2021-06-03 DE DE102021114404.3A patent/DE102021114404B4/en active Active
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2022
- 2022-05-24 EP EP22175109.2A patent/EP4098365A1/en active Pending
- 2022-06-03 US US17/805,355 patent/US20220388264A1/en active Pending
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DE3915320A1 (en) | 1989-05-10 | 1990-11-15 | Krupp Polysius Ag | GRINDING ROLLER |
DE3927884A1 (en) * | 1989-08-23 | 1991-02-28 | Krupp Polysius Ag | MACHINE FOR COMPACTING AND / OR CRUSHING PROPERTY GOODS |
DE19709263A1 (en) * | 1997-03-06 | 1998-09-10 | Krupp Polysius Ag | Roller for grinding mill |
JP2007061731A (en) * | 2005-08-31 | 2007-03-15 | Aktio Corp | Wet type crusher |
CN101428244A (en) * | 2008-12-19 | 2009-05-13 | 吴兆忠 | Assembled single-roller sand producer apparatus |
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Publication number | Priority date | Publication date | Assignee | Title |
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DE102022001978A1 (en) | 2022-06-08 | 2023-12-14 | ALLRECO GmbH | Rotating device |
Also Published As
Publication number | Publication date |
---|---|
DE102021114404B4 (en) | 2024-07-04 |
US20220388264A1 (en) | 2022-12-08 |
DE102021114404A1 (en) | 2022-12-08 |
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