EP3463670B1 - Bearing housing support of a double-roll crusher - Google Patents
Bearing housing support of a double-roll crusher Download PDFInfo
- Publication number
- EP3463670B1 EP3463670B1 EP17725942.1A EP17725942A EP3463670B1 EP 3463670 B1 EP3463670 B1 EP 3463670B1 EP 17725942 A EP17725942 A EP 17725942A EP 3463670 B1 EP3463670 B1 EP 3463670B1
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- EP
- European Patent Office
- Prior art keywords
- bearing housing
- rolling mill
- roller press
- load distribution
- roller
- Prior art date
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- 238000009826 distribution Methods 0.000 claims description 31
- 238000005096 rolling process Methods 0.000 claims description 24
- 229920001971 elastomer Polymers 0.000 claims description 10
- 239000000463 material Substances 0.000 claims description 3
- 239000000806 elastomer Substances 0.000 claims description 2
- 229920002635 polyurethane Polymers 0.000 claims description 2
- 239000004814 polyurethane Substances 0.000 claims description 2
- 238000010276 construction Methods 0.000 claims 1
- 230000001747 exhibiting effect Effects 0.000 claims 1
- 238000007373 indentation Methods 0.000 claims 1
- 238000000926 separation method Methods 0.000 claims 1
- 230000005540 biological transmission Effects 0.000 description 6
- 229910000831 Steel Inorganic materials 0.000 description 2
- 230000000284 resting effect Effects 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 244000059549 Borneo rubber Species 0.000 description 1
- 229920001875 Ebonite Polymers 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
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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
- B02C4/32—Adjusting, applying pressure to, or controlling the distance between, milling members
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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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/04—Frames; Guides
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- 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
- B30B3/04—Presses characterised by the use of rotary pressing members, e.g. rollers, rings, discs co-operating with one another, e.g. with co-operating cones
Definitions
- the invention relates to a device for supporting a roller bearing housing of a two-roller roller press, both rollers each having a fixed bearing in a non-angularly movable version and a floating bearing in a non-angularly movable version, and at least one load distribution element being arranged between the machine frame of the two-roller roller press and the housing of each roller bearing , and a roller bearing that has a bearing housing support according to the invention.
- Two-roller roller presses also referred to as good-bed roller mills, are used for the pressure reduction of medium-hard to brittle materials. They comprise two driven, counter-rotating rollers, between which there is a grinding gap.
- One of the rollers is designed as a stationary fixed roller and the other roller as a loose roller that is movably mounted transversely to the grinding gap.
- the loose roller is spring-loaded with a correspondingly high pressure, usually applied by hydraulic cylinders, and pressed against the fixed roller via the feed material located between the rollers.
- the hydraulic elements on the loose roller side adjust the grinding force and thus the gap between the loose and fixed roller during operation (operating gap).
- roller bearings are usually used for the roller bearings. From the DE 36 35 885 C2 the use of spherical roller bearings, which have an angular mobility of a few degrees, is known, on the bearing housing of which a thin rubber body is arranged on the fixed roller side to compensate for tolerances. A misalignment in the roller bearing, as it can occur with the loose roller, cannot be compensated for by non-angularly movable bearings due to the design.
- the elastic bodies e.g. B. rubber cushions
- the function is to ensure an optimal, ie as homogeneous as possible load distribution on the rolling bearings.
- the forces acting as pressure elements on the bearings of the loose roller due to the introduction of force from the hydraulic cylinders should be optimally distributed over the bearing housings to the rolling elements.
- a thick, soft rubber element per bearing is used on the loose roller side and a thin, hard rubber element per bearing on the fixed roller side.
- this results in stiffening when loaded and thus no good load distribution on the bearing housing on the load side, so that few rolling elements are heavily stressed in the load direction.
- a distribution of the load that is as homogeneous as possible in terms of amount over as many rolling elements as possible is optimal.
- the invention is based on the object of overcoming the above-mentioned disadvantages of the prior art by optimizing the load distribution on the rolling bearings of the fixed and loose rollers or of adjusting the fixed and loose rollers to one another.
- a load distribution element is arranged on the housing of each non-angularly movable bearing of the two rollers of the roller press, which has at least two separate, elastic individual elements, between which one is not with a solid or liquid medium filled intermediate space, this recess representing an interruption of the load distribution element in the vertical direction.
- the recess is thus arranged in the area of the greatest acting bearing load.
- the rolling elements are advantageously relieved of load in the area of the greatest acting bearing load and, compared to the known devices, the load is more evenly distributed over a larger number of rolling elements. This results in an increase in the bearing service life with the same performance or an increase in the contact pressure with the same bearing service life. This ultimately also results in the possibility of installing larger rollers with an increase in the throughput of the roller press.
- the elastic individual elements of a load distribution element are preferably each acted upon by a precisely fitting, non-elastic pressure transmission element on their surface which is opposite the contact surface on the bearing housing.
- These pressure transmission elements are preferably made of a steel.
- the pressure transmission elements are arranged on the fixed roller side on a contact surface (vertical spars as end pieces) of the machine frame of the roller press.
- the hydraulic cylinders with which the contact forces are applied are located on the roll side between the pressure transmission elements and the machine frame.
- the load distribution element is designed symmetrically to a horizontal plane.
- the horizontal plane is particularly preferably identical to the horizontal center plane of the bearing housing.
- the plane of symmetry corresponds to the horizontal center plane of the recess between the individual elements, and the two individual elements have the same dimensions.
- the load distribution element is structurally identical for all bearings of the two-roller roller press, i.e. for the fixed and floating bearings, both on the fixed and on the loose roller. It is advantageous that the load on the rolling elements of the bearings of the fixed and loose rollers is almost the same.
- cylindrical roller bearings are used as non-angularly movable bearings. Typically these are designed in four rows. Cylindrical roller bearings stand out in comparison with angularly movable bearings, e.g. B. spherical roller bearings, mainly characterized by being more robust in operation and significantly cheaper for large bearings.
- the elastic individual elements of a load distribution element are cuboid and have a rectangular cross section.
- the elastic individual elements of a load distribution element are made from an elastomer.
- the elastic individual elements of a load distribution element are made of rubber or polyurethane. It is advantageous that the load distribution elements, which are wearing parts, are thus inexpensive and easy to handle and replace.
- an elastic individual element of a load distribution element has a closed border that is open to the surface opposite the contact surface on the roller bearing housing or to the contact surface on the roller bearing housing and the surface opposite the said contact surface.
- the properties of an elastic individual element are thus analogous to those of an incompressible hydraulic fluid.
- the border can consist of support plates, usually made of a steel. Particularly preferably, the height of the border is greater than the height of the elastic individual element and protrudes in the horizontal direction beyond the surface opposite the contact surface on the bearing housing. Inelastic pressure transmission elements are then arranged precisely in the protruding border of the individual element.
- the closed border of an elastic individual element is formed by inserting the individual element into a precisely fitting recess or groove arranged on the roller bearing housing, and supporting elements connected to the bearing housing in a force-fit manner on the side surfaces of the individual element that are not covered by the boundary surfaces of the groove to be ordered.
- the object according to the invention is achieved by a roller bearing that has a support according to the invention for the roller bearing housing in accordance with one of the configurations described above.
- Figure 1 shows schematically a vertical section of an embodiment of a bearing housing support 1 according to the invention of the loose roll of a two-roll roller press, the axis of rotation of the loose roll being perpendicular to the plane of the drawing.
- the shaft of the loose roller is mounted in cylindrical roller bearings with cylindrical rolling elements (not shown).
- a load distribution element 3 rests on the bearing housing 2 of a cylindrical roller bearing and has two similar, cuboid elastic individual elements 31a, 31b, for example rubber bodies, the elastic individual element 31a being arranged on the upper half of the bearing housing and the elastic individual element 31b being arranged on the lower half of the bearing housing is.
- the individual elements 31a, 31b extend in the horizontal direction over the entire width of the bearing housing 2.
- the load distribution element 3 closes approximately with the upper and lower cover surfaces of the bearing housing 2. Between the individual elements 31a, 31b there is a recess 32 which, like the load distribution element 3, is symmetrical with respect to the horizontal center plane of the bearing housing 2. On the surface 33a, 33b of an individual element 31a, 31b, which is opposite the surface 34a, 34b resting on the bearing housing 2, precisely fitting metallic punches 4a, 4b are arranged as pressure transmission means, the size of the contact surface of the metallic punches 4a, 4b with the Individual elements 31a, 31b corresponds to the size of the surface 33a, 33b. Each individual element 31a, 31b is surrounded by a closed border.
- Support walls 21a, 21b and the support plates protrude beyond the respective individual element 31a, 31b on the surface 33a, 33b, so that the section of the stamp 4a, 4b facing the surface 33a, 33b also encompasses the border of the individual element 31a, 31b and is supported.
- the punches 4a, 4b are each connected to intermediate pieces 5a, 5b via an articulated and resilient screw connection.
- the intermediate pieces 5a, 5b are connected to a hydraulic cylinder 6 for applying the pressing force.
- Figure 2 shows a detail of a side view of the loose roll side of a two-roll roller press with the bearing housing support 1 according to the invention, as shown in FIG Fig. 1 .
- the axis of rotation of the roller (not shown) is perpendicular to the plane of the drawing.
- the bearing housing 2 has a load distribution element 3 with two spatially separated, elastic individual elements (hidden here), between which there is a recess 32 which is symmetrical with respect to the horizontal center plane of the bearing housing 2 (indicated by the horizontal dashed line).
- the closed border of the individual elements (covered here) is formed in the horizontal direction by support walls 21a, 21b (partially covered) cast on the bearing housing 2 and in the vertical direction by support plates 22a, 22b frictionally connected to the support walls.
- the closed border also supports a section of the stamps 4a, 4b resting on the individual elements.
- the punches 4a, 4b are connected via an articulated and resilient screw connection with intermediate pieces 5a, 5b, which in turn are connected to a hydraulic cylinder 6 for applying the contact pressure.
- the hydraulic cylinder 6 is attached to the vertical bars 7 of the machine frame of the two-roll roller press.
- the bearing housing support 1 according to the invention is structurally identical for the fixed bearing and the floating bearing side of the loose roller.
- Figure 3 shows a detail of a side view of the fixed roller side of a two-roller roller press with a bearing housing support 1 'according to the invention.
- Fig. 2 is the axis of rotation of the roller (not shown) perpendicular to the plane of the drawing.
- the bearing housing support 1 'on the fixed bearing and loose bearing side of the fixed roller side is structurally identical to the bearing housing support 1 on both bearing sides of the loose roller, as in FIG Fig. 1 and Fig. 2 shown.
- the intermediate pieces 5a ', 5b' on the fixed roll side are attached directly to the vertical spars 7 'of the machine frame of the two-roll roller press.
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Mechanical Engineering (AREA)
- Support Of The Bearing (AREA)
- Rolls And Other Rotary Bodies (AREA)
- Rolling Contact Bearings (AREA)
- Crushing And Grinding (AREA)
- Press Drives And Press Lines (AREA)
Description
Die Erfindung betrifft eine Vorrichtung zur Abstützung eines Walzenlagergehäuses einer Zweiwalzen-Rollenpresse, wobei beide Walzen jeweils ein Festlager in nichtwinkelbeweglicher Ausführung und ein Loslager in nichtwinkelbeweglicher Ausführung aufweisen, und wobei zwischen dem Maschinenrahmen der Zweiwalzen-Rollenpresse und dem Gehäuse jedes Walzenlagers mindestens ein Lastverteilungselement angeordnet ist, sowie eine Walzenlagerung, die eine erfindungsgemäße Lagergehäuseabstützung aufweist.The invention relates to a device for supporting a roller bearing housing of a two-roller roller press, both rollers each having a fixed bearing in a non-angularly movable version and a floating bearing in a non-angularly movable version, and at least one load distribution element being arranged between the machine frame of the two-roller roller press and the housing of each roller bearing , and a roller bearing that has a bearing housing support according to the invention.
Zweiwalzen-Rollenpressen, auch bezeichnet als Gutbett-Walzenmühlen, werden zur Druckzerkleinerung mittelharter bis spröder Stoffe verwendet. Sie umfassen zwei angetriebene, gegenläufig rotierende Walzen, zwischen denen ein Mahlspalt besteht. Eine der Walzen ist als stationär gelagerte Festwalze und die andere Walze als quer zum Mahlspalt beweglich gelagerte Loswalze ausgebildet. Die Loswalze wird mit entsprechend hohem Druck, üblicherweise aufgebracht durch Hydraulikzylinder, gefedert über das zwischen den Walzen befindliche Aufgabematerial gegen die Festwalze gepresst. Im Rahmen einer Druckregelung stellen die Hydraulikelemente auf Loswalzenseite die Mahlkraft und somit das Spaltmaß zwischen Los- und Festwalze während des Betriebes ein (Betriebsspalt).Two-roller roller presses, also referred to as good-bed roller mills, are used for the pressure reduction of medium-hard to brittle materials. They comprise two driven, counter-rotating rollers, between which there is a grinding gap. One of the rollers is designed as a stationary fixed roller and the other roller as a loose roller that is movably mounted transversely to the grinding gap. The loose roller is spring-loaded with a correspondingly high pressure, usually applied by hydraulic cylinders, and pressed against the fixed roller via the feed material located between the rollers. As part of a pressure control, the hydraulic elements on the loose roller side adjust the grinding force and thus the gap between the loose and fixed roller during operation (operating gap).
Die krafteinleitende Abstützung der Walzen erfolgt horizontal an vertikalen Elementen des Maschinenrahmens. Die bei der Druckbehandlung auftretenden Kräfte werden so über die Walzenlager in den Maschinenrahmen geleitet Für die Walzenlagerung werden üblicherweise Wälzlager eingesetzt. Aus der
Den elastischen Körpern, z. B. Gummikissen, kommt zum einen die Funktion zu, eine optimale, d. h. möglichst homogene Lastverteilung auf die Wälzlager zu gewährleisten. Insbesondere sollen die durch die Krafteinleitung von den Hydraulikzylindern als Anpresselementen auf die Lager der Loswalze wirkenden Kräfte optimal über die Lagergehäuse auf die Wälzkörper verteilt werden. Zum anderen sind auf Seiten der Loswalze leichte Winkelbewegungen, resultierend aus der Schiefstellung und Durchbiegung der Walze, und auf Festwalzenseite Fertigungstoleranzen und Durchbiegung auszugleichen. Leichte Winkelbewegungen aus der möglichen Schiefstellung und Durchbiegung der Loswalze können nur bei ausreichender Dicke des elastischen Gummielements aufgenommen werden.The elastic bodies, e.g. B. rubber cushions, the function is to ensure an optimal, ie as homogeneous as possible load distribution on the rolling bearings. In particular, the forces acting as pressure elements on the bearings of the loose roller due to the introduction of force from the hydraulic cylinders should be optimally distributed over the bearing housings to the rolling elements. On the other hand, there are slight angular movements on the loose roller side, resulting from the inclination and deflection of the roller, and manufacturing tolerances and on the fixed roller side Compensate for deflection. Slight angular movements from the possible inclination and bending of the loose roller can only be absorbed if the elastic rubber element is sufficiently thick.
Zur Erfüllung der obengenannten Funktionen wird dem Stand der Technik gemäß auf Loswalzenseite jeweils ein dickes, weiches Gummielement pro Lager und auf Festwalzenseite ein dünnes, hartes Gummielement pro Lager eingesetzt. Insbesondere auf Seite der Festwalze ergibt sich dadurch bei Belastung eine Versteifung und somit keine gute Lastverteilung auf das Lagergehäuse lastseitig, so dass wenige Wälzkörper in Lastrichtung stark beansprucht werden. Optimal ist hingegen eine betragsmäßig möglichst homogene Verteilung der Last auf möglichst viele Wälzkörper.To fulfill the above-mentioned functions, according to the prior art, a thick, soft rubber element per bearing is used on the loose roller side and a thin, hard rubber element per bearing on the fixed roller side. In particular on the fixed roller side, this results in stiffening when loaded and thus no good load distribution on the bearing housing on the load side, so that few rolling elements are heavily stressed in the load direction. In contrast, a distribution of the load that is as homogeneous as possible in terms of amount over as many rolling elements as possible is optimal.
Der Erfindung liegt die Aufgabe zugrunde, die genannten Nachteile des Stands der Technik zu überwinden, indem die Lastverteilung auf die Wälzlager von Fest- und Loswalze optimiert bzw. von Fest- und Loswalze zueinander angeglichen wird.The invention is based on the object of overcoming the above-mentioned disadvantages of the prior art by optimizing the load distribution on the rolling bearings of the fixed and loose rollers or of adjusting the fixed and loose rollers to one another.
Diese Aufgabe wird durch eine Vorrichtung zur Abstützung eines Walzenlagergehäuses einer Zweiwalzen-Rollenpresse mit den Merkmalen des Anspruchs 1 gelöst. Vorteilhafte Ausgestaltungen sind in den abhängigen Ansprüchen angegeben.This object is achieved by a device for supporting a roller bearing housing of a two-roller roller press with the features of
Die Lösung dieser Aufgabe gelingt bei der erfindungsgemäßen Abstützung eines Walzenlagergehäuses einer Zweiwalzen-Rollenpresse dadurch, dass ein Lastverteilungselement am Gehäuse jedes, nichtwinkelbeweglich ausgeführten, Lagers der beiden Walzen der Rollenpresse angeordnet ist, welches mindestens zwei separate, elastische Einzelelemente aufweist, zwischen denen sich ein nicht mit einem festen oder flüssigen Medium ausgefüllter Zwischenraum befindet, wobei diese Aussparung eine Unterbrechung des Lastverteilungselements in vertikaler Richtung darstellt. Die Aussparung ist damit im Bereich der größten wirkenden Lagerlast angeordnet.This object is achieved with the inventive support of a roller bearing housing of a two-roller roller press in that a load distribution element is arranged on the housing of each non-angularly movable bearing of the two rollers of the roller press, which has at least two separate, elastic individual elements, between which one is not with a solid or liquid medium filled intermediate space, this recess representing an interruption of the load distribution element in the vertical direction. The recess is thus arranged in the area of the greatest acting bearing load.
Durch die erfindungsgemäße Abstützung der Walzenlagergehäuse werden die Wälzkörper im Bereich der größten wirkenden Lagerlast vorteilhaft entlastet und im Vergleich zu den bekannten Vorrichtungen die Last gleichmäßiger auf eine größere Anzahl von Wälzkörpern verteilt. Dies resultiert in einer Erhöhung der Lagerlebensdauer bei gleichbleibender Leistung bzw. einer Erhöhung der Anpresskraft bei gleichbleibender Lagerlebensdauer. Damit ergibt sich letztlich auch die Möglichkeit zum Einbau größerer Walzen mit einer Steigerung der Durchsatzleistung der Rollenpresse.Due to the inventive support of the roller bearing housing, the rolling elements are advantageously relieved of load in the area of the greatest acting bearing load and, compared to the known devices, the load is more evenly distributed over a larger number of rolling elements. This results in an increase in the bearing service life with the same performance or an increase in the contact pressure with the same bearing service life. This ultimately also results in the possibility of installing larger rollers with an increase in the throughput of the roller press.
Im Vergleich mit den aus dem Stand der Technik bekannten Lösungen sind die Anlageflächen der Einzelelemente eines Lastverteilungselements an die Lagergehäuse in vertikaler Richtung nach oben und unten verschoben, was gleichfalls zu einer Optimierung der Lastverteilung auf das Walzenlager beiträgt.In comparison with the solutions known from the prior art, the contact surfaces of the individual elements of a load distribution element on the bearing housing are shifted up and down in the vertical direction, which also contributes to optimizing the load distribution on the roller bearing.
Bevorzugt sind die elastischen Einzelelemente eines Lastverteilungselements auf ihrer Fläche, die der Anlagefläche am Lagergehäuse gegenüber liegt, jeweils mit einem passgenauen, nichtelastisch ausgeführten Druckübertragungselement beaufschlagt. Diese Druckübertragungselemente sind bevorzugt aus einem Stahl gefertigt. Die Druckübertragungselemente sind auf Festwalzenseite an einer Anlagefläche (Vertikalholme als Endstück) des Maschinenrahmens der Rollenpresse angeordnet. Auf Loswalzenseite befinden sich zwischen Druckübertragungselementen und Maschinenrahmen die Hydraulikzylinder, mit denen die Anpresskräfte aufgebracht werden.The elastic individual elements of a load distribution element are preferably each acted upon by a precisely fitting, non-elastic pressure transmission element on their surface which is opposite the contact surface on the bearing housing. These pressure transmission elements are preferably made of a steel. The pressure transmission elements are arranged on the fixed roller side on a contact surface (vertical spars as end pieces) of the machine frame of the roller press. The hydraulic cylinders with which the contact forces are applied are located on the roll side between the pressure transmission elements and the machine frame.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse ist das Lastverteilungselement symmetrisch zu einer horizontalen Ebene ausgeführt. Besonders bevorzugt ist die horizontale Ebene identisch mit der horizontalen Mittelebene des Lagergehäuses. In dem Fall, dass das Lastverteilungselement genau zwei Einzelelemente umfasst, entspricht die Symmetrieebene der horizontalen Mittelebene der Aussparung zwischen den Einzelelementen, und die beiden Einzelelemente weisen gleiche Abmessungen auf.In a further preferred embodiment of the support of the roller bearing housing according to the invention, the load distribution element is designed symmetrically to a horizontal plane. The horizontal plane is particularly preferably identical to the horizontal center plane of the bearing housing. In the event that the load distribution element comprises exactly two individual elements, the plane of symmetry corresponds to the horizontal center plane of the recess between the individual elements, and the two individual elements have the same dimensions.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse ist das Lastverteilungselement baugleich für alle Lager der Zweiwalzen-Rollenpresse, also für das Fest- und das Loslager, sowohl an der Fest- als auch an der Loswalze. Vorteilhaft ist, dass die Belastung der Wälzkörper der Lager von Fest- und Loswalze nahezu gleich ist.In a further preferred embodiment of the inventive support of the roller bearing housing, the load distribution element is structurally identical for all bearings of the two-roller roller press, i.e. for the fixed and floating bearings, both on the fixed and on the loose roller. It is advantageous that the load on the rolling elements of the bearings of the fixed and loose rollers is almost the same.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse werden als nichtwinkelbewegliche Lager Zylinderrollenlager eingesetzt. Typischerweise sind diese vierreihig ausgeführt. Zylinderrollenlager zeichnen sich im Vergleich mit winkelbeweglichen Lagern, z. B. Pendelrollenlagern, vor allem dadurch aus, robuster im Betrieb und bei Großlagern deutlich preisgünstiger zu sein.In a further preferred embodiment of the inventive support for the roller bearing housings, cylindrical roller bearings are used as non-angularly movable bearings. Typically these are designed in four rows. Cylindrical roller bearings stand out in comparison with angularly movable bearings, e.g. B. spherical roller bearings, mainly characterized by being more robust in operation and significantly cheaper for large bearings.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse sind die elastischen Einzelelemente eines Lastverteilungselements quaderförmig und weisen einen rechteckigen Querschnitt auf.In a further preferred embodiment of the inventive support of the roller bearing housing, the elastic individual elements of a load distribution element are cuboid and have a rectangular cross section.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse sind die elastischen Einzelelemente eines Lastverteilungselements aus einem Elastomer gefertigt.In a further preferred embodiment of the inventive support for the roller bearing housing, the elastic individual elements of a load distribution element are made from an elastomer.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse sind die elastischen Einzelelemente eines Lastverteilungselements aus Gummi oder Polyurethan gefertigt. Vorteilhaft ist, dass die Lastverteilungselemente, bei denen es sich um Verschleißteile handelt, damit preisgünstig sowie einfach zu handhaben und auszuwechseln sind.In a further preferred embodiment of the inventive support of the roller bearing housing, the elastic individual elements of a load distribution element are made of rubber or polyurethane. It is advantageous that the load distribution elements, which are wearing parts, are thus inexpensive and easy to handle and replace.
In einer weiteren bevorzugten Ausgestaltung der erfindungsgemäßen Abstützung der Walzenlagergehäuse weist ein elastisches Einzelelement eines Lastverteilungselements eine geschlossene Umrandung auf, die zu der der Anlagefläche am Walzenlagergehäuse gegenüber liegenden Fläche oder zu der Anlagefläche am Walzenlagergehäuse und zu der der besagten Anlagefläche gegenüber liegenden Fläche hin offen ist. Die Eigenschaften eines elastischen Einzelelements weisen damit Analogien zu denen einer inkompressiblen Hydraulikflüssigkeit auf. Die Umrandung kann aus Stützblechen, üblicherweise aus einem Stahl, bestehen. Besonders bevorzugt ist die Höhe der Umrandung größer als Höhe des elastischen Einzelelements und ragt in horizontaler Richtung über dessen der Anlagefläche am Lagergehäuse gegenüber liegender Fläche hinaus. Nichtelastische Druckübertragungselemente sind dann passgenau in der überstehenden Umrandung des Einzelelements angeordnet.In a further preferred embodiment of the inventive support for the roller bearing housing, an elastic individual element of a load distribution element has a closed border that is open to the surface opposite the contact surface on the roller bearing housing or to the contact surface on the roller bearing housing and the surface opposite the said contact surface. The properties of an elastic individual element are thus analogous to those of an incompressible hydraulic fluid. The border can consist of support plates, usually made of a steel. Particularly preferably, the height of the border is greater than the height of the elastic individual element and protrudes in the horizontal direction beyond the surface opposite the contact surface on the bearing housing. Inelastic pressure transmission elements are then arranged precisely in the protruding border of the individual element.
In einer bevorzugten Ausführungsform wird die geschlossene Umrandung eines elastischen Einzelelements dadurch gebildet, dass das Einzelelement in eine am Walzenlagergehäuse angeordnete, passgenaue Vertiefung bzw. Nut eingelegt wird, und an den nicht durch die Begrenzungsflächen der Nut abgedeckten Seitenflächen des Einzelelements kraftschlüssig mit dem Lagergehäuse verbundene Stützelemente angeordnet werden. Die Vorteile dieser Ausführungsform sind gewichtsoptimierte Bauteile und ein einfaches Auswechseln der Einzelelemente als Verschleißteile, durch einseitiges Lösen der kraftschlüssigen, mit dem Lagergehäuse verbundenen, Stützelemente.In a preferred embodiment, the closed border of an elastic individual element is formed by inserting the individual element into a precisely fitting recess or groove arranged on the roller bearing housing, and supporting elements connected to the bearing housing in a force-fit manner on the side surfaces of the individual element that are not covered by the boundary surfaces of the groove to be ordered. The advantages of this embodiment are weight-optimized components and a simple exchange of the individual elements as wearing parts by unilaterally releasing the non-positive support elements connected to the bearing housing.
Des Weiteren wird die erfindungsgemäße Aufgabe gelöst durch eine Walzenlagerung, die eine erfindungsgemäße Abstützung des Walzenlagergehäuses gemäß einer der vorstehend beschriebenen Ausgestaltungen aufweist.Furthermore, the object according to the invention is achieved by a roller bearing that has a support according to the invention for the roller bearing housing in accordance with one of the configurations described above.
Bevorzugte Weiterbildungen der Erfindung ergeben sich aus Kombinationen der Ansprüche oder einzelner Merkmale davon.Preferred developments of the invention result from combinations of the claims or individual features thereof.
Die Erfindung wird nachstehend anhand von Ausführungsbeispielen unter Bezugnahme auf Abbildungen erläutert, ohne auf diese beschränkt zu sein.The invention is explained below on the basis of exemplary embodiments with reference to figures, without being restricted to these.
Dabei zeigt, jeweils schematisch:
-
einen vertikalen Schnitt einer erfindungsgemäßen Lagergehäuseabstützung der Loswalze,Figur 1 -
eine Seitenansicht eines Ausschnitts der Loswalzenseite einer Zweiwalzen-Rollenpresse mit erfindungsgemäßer Abstützung der Lagergehäuse der Loswalze,Figur 2 -
eine Seitenansicht eines Ausschnitts der Festwalzenseite einer Zweiwalzen-Rollenpresse mit erfindungsgemäßer Abstützung der Lagergehäuse der Festwalze.Figur 3
-
Figure 1 a vertical section of a bearing housing support according to the invention of the loose roller, -
Figure 2 a side view of a section of the loose roll side of a two-roll roller press with inventive support for the bearing housing of the loose roll, -
Figure 3 a side view of a section of the fixed roller side of a two-roller roller press with inventive support for the bearing housing of the fixed roller.
Stützwände 21a, 21b und die Stützbleche (nicht dargestellt) überragen das jeweilige Einzelelement 31a, 31b an der Fläche 33a, 33b, so dass auch der der Fläche 33a, 33b zugewandte Abschnitt des Stempels 4a, 4b von der Umrandung des Einzelelements 31a, 31b umfasst und gestützt wird. Die Stempel 4a, 4b sind jeweils über eine gelenkige und federnde Schraubverbindung mit Zwischenstücken 5a, 5b verbunden. Die Zwischenstücke 5a, 5b sind mit einem Hydraulikzylinder 6 zum Aufbringen der Anpresskraft verbunden.
- 1,1'1.1 '
- LagergehäuseabstützungBearing housing support
- 22
- LagergehäuseBearing housing
- 21a21a
- Obere StützwandUpper retaining wall
- 21b21b
- Untere StützwandLower retaining wall
- 22a22a
- Oberes StützblechUpper support plate
- 22b22b
- Unteres StützblechLower support plate
- 33
- LastverteilungselementLoad balancing element
- 31a31a
- Oberes EinzelelementUpper single element
- 31b31b
- Unteres EinzelelementLower single element
- 3232
- AussparungRecess
- 33a33a
- Der Anlagefläche am Lagergehäuse gegenüber liegende Seitenfläche des oberen EinzelelementsThe side face of the upper individual element lying opposite the contact face on the bearing housing
- 33b33b
- Der Anlagefläche am Lagergehäuse gegenüber liegende Seitenfläche des unteren EinzelelementsThe side face of the lower individual element lying opposite the contact face on the bearing housing
- 34a34a
- Anlagefläche am Lagergehäuse des oberen EinzelelementsContact surface on the bearing housing of the upper individual element
- 34b34b
- Anlagefläche am Lagergehäuse des unteren EinzelelementsContact surface on the bearing housing of the lower individual element
- 4a4a
- Oberer StempelUpper stamp
- 4b4b
- Unterer StempelLower stamp
- 5a,5a'5a, 5a '
- Oberes ZwischenstückUpper intermediate piece
- 5b,5b'5b, 5b '
- Unteres ZwischenstückLower intermediate piece
- 66th
- HydraulikzylinderHydraulic cylinder
- 7,7'7.7 '
- VertikalholmVertical spar
Claims (11)
- Device for supporting a rolling mill bearing housing of a two-high roller press, in which both rollers respectively exhibit a fixed bearing in a design that cannot be moved at an angle and floating bearing in a design that cannot be moved at an angle, and on the side of the housing (2) facing the machine frame of each rolling mill bearing at least one load distribution element (3) is arranged, characterised in that the load distribution element (3) exhibits at least two spatially-separate, elastic individual elements (31a, 31b), in which at least one recess (32) between the individual elements (31a, 31b) represents a spatial separation in the vertical direction.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to claim 1, characterised in that on the surface (33a, 33b) of an elastic individual element (31a, 31b) of the load distribution element (3) opposite the contact surface (34a, 34b) on the bearing housing (2) a non-elastic pressure transfer element (4a, 4b) is precisely fitted.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claim 1 or 2, characterised in that the load distribution element (3) is formed symmetrical to a horizontal plane.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 3, characterised in that the load distribution element (3) is of the same construction for all rolling mill bearings of a two-high roller press.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 4, characterised in that the rolling mill bearing is a cylindrical roller bearing.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 5, characterised in that the elastic individual elements (31, 31b) of a load distribution element (3) are cubiod.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 6, characterised in that the elastic individual elements (31a, 31b) of a load distribution element (3) are made of an elastomer.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 7, characterised in that the elastic individual elements (31a, 31b) of a load distribution element (3) are made of one of the materials rubber or polyurethane.
- Device for supporting a rolling mill bearing housing of a two-high roller press according to any one of claims 1 to 8, characterised in that an elastic individual element (31a, 31b) of a load distribution element (3) is enclosed by means of an enclosed edge, in which the edge is open to the surface (33a, 33b) opposite the contact surface (34a, 34b) of the elastic individual element (31a, 31b) on the bearing housing (2) or is also open to the contact surface (34a, 34b) of the elastic individual element (31a, 31b) on the bearing housing (2) as well as open to the surface (33a, 33b) opposite the contact surface (34a, 34b).
- Device for supporting a rolling mill bearing housing of a two-high roller press according to claim 9, characterised in that the enclosed edge is formed at least partially by the bordering surfaces (21a, 21b) of an indentation arranged on the bearing housing (2).
- Rolling mill bearing for a two-high roller press, exhibiting a device (1, 1') for supporting the rolling mill bearing housing (2) according to any one of claims 1 to 10.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102016209247.2A DE102016209247C5 (en) | 2016-05-27 | 2016-05-27 | BEARING HOUSING SUPPORT OF A TWO-ROLL ROLL PRESS |
PCT/EP2017/062386 WO2017202835A1 (en) | 2016-05-27 | 2017-05-23 | Bearing housing support of a double-roll crusher |
Publications (2)
Publication Number | Publication Date |
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EP3463670A1 EP3463670A1 (en) | 2019-04-10 |
EP3463670B1 true EP3463670B1 (en) | 2021-07-07 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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EP17725942.1A Active EP3463670B1 (en) | 2016-05-27 | 2017-05-23 | Bearing housing support of a double-roll crusher |
Country Status (10)
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US (1) | US10994278B2 (en) |
EP (1) | EP3463670B1 (en) |
AU (1) | AU2017269983B2 (en) |
CA (1) | CA3024364C (en) |
CL (1) | CL2018003372A1 (en) |
DE (1) | DE102016209247C5 (en) |
EA (1) | EA037917B1 (en) |
MX (1) | MX2018014280A (en) |
PE (1) | PE20190536A1 (en) |
WO (1) | WO2017202835A1 (en) |
Families Citing this family (1)
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RU2691373C1 (en) * | 2018-03-12 | 2019-06-11 | федеральное государственное бюджетное образовательное учреждение высшего образования "Брянский государственный инженерно-технологический университет" | Roller crusher |
Citations (4)
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DE533078C (en) | 1931-09-09 | Esch Werke Kom Ges Maschinenfa | Storage for the loose rolling of roller mills | |
DE3635885A1 (en) | 1986-10-22 | 1988-05-05 | Kloeckner Humboldt Deutz Ag | Rolling mill, especially a roller press |
DE4034822A1 (en) | 1990-10-08 | 1992-04-09 | Kloeckner Humboldt Deutz Ag | ROLLER BEARING OF A TWO-ROLL MACHINE |
US20120111982A1 (en) | 2010-10-14 | 2012-05-10 | Ruether Thomas | Roller mill for comminuting brittle grinding stock |
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US3845906A (en) * | 1972-04-21 | 1974-11-05 | Iowa Mfg Co | Mechanical accumulators for roll crushers |
FR2346049A1 (en) * | 1975-07-29 | 1977-10-28 | Fives Cail Babcock | ROD MILLS IMPROVEMENTS |
SE532690C2 (en) | 2008-06-30 | 2010-03-16 | Metso Brasil Ind E Com Ltda | bearing arrangements |
DE102010016472C5 (en) * | 2010-04-16 | 2017-11-23 | Thyssenkrupp Industrial Solutions Ag | roller mill |
DE102014104038B4 (en) | 2014-03-24 | 2017-04-06 | Thyssenkrupp Ag | roller Press |
US9919315B2 (en) * | 2015-08-10 | 2018-03-20 | Pearson Incorporated | Roll adjustment system |
-
2016
- 2016-05-27 DE DE102016209247.2A patent/DE102016209247C5/en active Active
-
2017
- 2017-05-23 PE PE2018003093A patent/PE20190536A1/en unknown
- 2017-05-23 CA CA3024364A patent/CA3024364C/en active Active
- 2017-05-23 WO PCT/EP2017/062386 patent/WO2017202835A1/en unknown
- 2017-05-23 MX MX2018014280A patent/MX2018014280A/en unknown
- 2017-05-23 AU AU2017269983A patent/AU2017269983B2/en active Active
- 2017-05-23 US US16/302,752 patent/US10994278B2/en active Active
- 2017-05-23 EA EA201800594A patent/EA037917B1/en unknown
- 2017-05-23 EP EP17725942.1A patent/EP3463670B1/en active Active
-
2018
- 2018-11-27 CL CL2018003372A patent/CL2018003372A1/en unknown
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DE533078C (en) | 1931-09-09 | Esch Werke Kom Ges Maschinenfa | Storage for the loose rolling of roller mills | |
DE3635885A1 (en) | 1986-10-22 | 1988-05-05 | Kloeckner Humboldt Deutz Ag | Rolling mill, especially a roller press |
DE4034822A1 (en) | 1990-10-08 | 1992-04-09 | Kloeckner Humboldt Deutz Ag | ROLLER BEARING OF A TWO-ROLL MACHINE |
US20120111982A1 (en) | 2010-10-14 | 2012-05-10 | Ruether Thomas | Roller mill for comminuting brittle grinding stock |
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US20190217305A1 (en) | 2019-07-18 |
CA3024364C (en) | 2021-05-25 |
EA037917B1 (en) | 2021-06-07 |
AU2017269983A1 (en) | 2018-11-15 |
PE20190536A1 (en) | 2019-04-11 |
US10994278B2 (en) | 2021-05-04 |
EP3463670A1 (en) | 2019-04-10 |
MX2018014280A (en) | 2019-02-25 |
DE102016209247B3 (en) | 2017-10-19 |
WO2017202835A1 (en) | 2017-11-30 |
EA201800594A1 (en) | 2019-06-28 |
CA3024364A1 (en) | 2017-11-30 |
DE102016209247C5 (en) | 2023-05-11 |
AU2017269983B2 (en) | 2020-01-02 |
CL2018003372A1 (en) | 2019-03-15 |
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