WO2013050200A1 - Tubular conveyor belt comprising four carrier rollers - Google Patents
Tubular conveyor belt comprising four carrier rollers Download PDFInfo
- Publication number
- WO2013050200A1 WO2013050200A1 PCT/EP2012/066164 EP2012066164W WO2013050200A1 WO 2013050200 A1 WO2013050200 A1 WO 2013050200A1 EP 2012066164 W EP2012066164 W EP 2012066164W WO 2013050200 A1 WO2013050200 A1 WO 2013050200A1
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- WO
- WIPO (PCT)
- Prior art keywords
- conveyor belt
- support
- support rollers
- belt according
- rollers
- Prior art date
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
- B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
- B65G15/08—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration the load-carrying surface being formed by a concave or tubular belt, e.g. a belt forming a trough
Definitions
- the invention relates to a conveyor belt with a support-side and running-side cover plate made of an elastomeric material and with an embedded tensile member, wherein the conveyor belt can be closed by overlapping its two Gurtflanken to form two touching edge zones to a Rohrrichgurt, which is supported around on support rollers.
- the conveyor belt is used as a textile conveyor belt or steel cable conveyor belt for use, wherein in particular the steel cable conveyor belt within the support side and / or running side cover plate in addition crossarms purpose
- Tube conveyor belt has been decisively developed.
- Outlet line is the conveyor belt as in the conventional belt conveyors tolerated. On the transport and return line, however, closes the conveyor belt and forms a tube (Rohr formatgurt, Schlauchgurt, Rollgurt). For this transport system are annularly arranged support rollers and optionally additional correction rollers needed. In addition to conventional belt conveyors, the closed conveyor belt system has the following advantages:
- a tubular conveyor belt is supported in the circumferential direction of six support rollers, and that at mostly regular carrying roller distances.
- the demands on the equipment and the conveyor belts are changing now, since such conveyors usually run straight or only with very large curve radii.
- such systems usually have to be built on stilts, which makes the lowest possible weight required or desirable, especially since the surrounding support rollers are the heaviest equipment parts.
- such facilities are often exposed to strong winds, which favor the downpouring of the material to be conveyed.
- the object of the invention is to provide a Rohr simplifiedgurtstrom ready, which requires fewer components to save weight.
- Fig. 2 is a support roller execution as in Fig. 1, wherein the support roller in
- Overlap region is concave
- Fig. 3 is a support roller execution as in Fig. 2, in which case the pipe conveyor belt has an oval-shaped cross-sectional shape.
- Fig. 1 shows a pipe conveyor belt 1 with the two overlapping edge zones A and B in a circular cross-sectional shape and with a support-side cover plate 2 for the conveying material and a running side cover plate 3 each having an elastomeric
- the pipe conveyor belt is provided with an embedded tension member, in particular in the form of a plurality of steel cables running parallel in the conveyor belt longitudinal direction.
- an embedded tension member in particular in the form of a plurality of steel cables running parallel in the conveyor belt longitudinal direction.
- steel cable conveyor belts usually a cross armoring is embedded
- Synthetic cord or metal cord may be formed.
- the tubular conveyor belt 1 is supported around four support rollers 4 and 5, wherein three support rollers 4 are arranged within the winningmaterialtrag Schemees while in the
- Overlap area A and B a single support roller 5 is present.
- the single support roller 5 in the overlapping area A and B can also be made longer than the three support rollers 4 in the conveying material support area.
- Fig. 2 also shows a pipe conveyor belt 6 having a circular cross-sectional shape.
- Fig. 3 seigt a Rohrworngurt 9 with an oval-shaped cross-sectional shape. While the three support rollers 10 in the conveying material support area have the usual construction according to the prior art, the single support roller 11 is concave in the overlapping area A and B. With the oval-shaped cross-sectional shape, the height is reduced.
- a edge zone of the tube conveyor belt overlap area
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Structure Of Belt Conveyors (AREA)
Abstract
The invention relates to a tubular conveyor belt (6) comprising four carrier rollers (7, 8), wherein the belt is supported in the overlapping region by a concave carrier roller (8) and in the lower half of the belt (6) by three rollers (7).
Description
Beschreibung description
Rohrfördergurt mit vier Tragrollen Pipe conveyor belt with four carrying rollers
Die Erfindung betrifft einen Fördergurt mit einer tragseitigen und laufseitigen Deckplatte aus jeweils einem elastomeren Werkstoff sowie mit einem eingebetteten Zugträger, wobei der Fördergurt durch Überlappung seiner beiden Gurtflanken unter Ausbildung zweier sich berührenden Randzonen zu einem Rohrfördergurt schließbar ist, der sich ringsherum an Tragrollen abstützt. Der Fördergurt kommt dabei als Textil-Fördergurt oder Stahlseil- Fördergurt zur Anwendung, wobei insbesondere beim Stahlseil-Fördergurt innerhalb der tragseitigen und/oder laufseitigen Deckplatte zusätzlich Querarmierungen zwecks The invention relates to a conveyor belt with a support-side and running-side cover plate made of an elastomeric material and with an embedded tensile member, wherein the conveyor belt can be closed by overlapping its two Gurtflanken to form two touching edge zones to a Rohrfördergurt, which is supported around on support rollers. The conveyor belt is used as a textile conveyor belt or steel cable conveyor belt for use, wherein in particular the steel cable conveyor belt within the support side and / or running side cover plate in addition crossarms purpose
Schlitzschutz vorhanden sind. Slot protection are available.
Ein gattungsgemäßer Fördergurt wird insbesondere in folgender Patentliteratur detailliert beschrieben: DE 36 06 129 AI A generic conveyor belt is described in detail in particular in the following patent literature: DE 36 06 129 AI
DE 36 12 765 AI DE 36 12 765 AI
DE 43 33 839 B4 DE 43 33 839 B4
EP 0 336 385 Bl In den letzten 20 Jahren ist das geschlossene Fördersystem unter Einsatz eines EP 0 336 385 B1 In the last 20 years, the closed conveyor system using a
Rohrfördergurtes entscheidend weiterentwickelt worden. Innerhalb der Ein- und Tube conveyor belt has been decisively developed. Within the inputs and
Auslaufstrecke ist der Fördergurt wie bei den konventionellen Gurtförderern gemuldet. Auf der Transport- und Rücklaufstrecke schließt sich jedoch der Fördergurt und bildet eine Röhre (Rohrfördergurt, Schlauchgurt, Rollgurt). Für dieses Transportsystem werden ringförmig angeordnete Tragrollen sowie gegebenenfalls zusätzliche Korrekturrollen
benötigt. Neben den konventionellen Gurtförderern zeichnet sich das geschlossene Transportbandsystem durch folgende Vorteile aus: Outlet line is the conveyor belt as in the conventional belt conveyors tolerated. On the transport and return line, however, closes the conveyor belt and forms a tube (Rohrfördergurt, Schlauchgurt, Rollgurt). For this transport system are annularly arranged support rollers and optionally additional correction rollers needed. In addition to conventional belt conveyors, the closed conveyor belt system has the following advantages:
— es ist besonders kurvengängig; - it is especially curvy;
— es hat eine besonders hohe Steigfähigkeit; - it has a particularly high climbing ability;
— es ist platzsparend; — es schützt das Fördermaterial sowie die Umwelt, beispielsweise bei Staub oder - it saves space; - It protects the material and the environment, for example, dust or
radioaktivem Fördermaterial, ferner bei Anlagen, die über gefährdete Bereiche (Wälder, Küsten usw.) führen sowie bei Verladeanlagen, die über dem Meer verlaufen. Bislang stützt sich ein Rohrfördergurt in Umfangsrichtung an sechs Tragrollen ab, und zwar bei zumeist regelmäßigen Tragrollenabständen. radioactive materials, installations over vulnerable areas (forests, coasts, etc.) and loading facilities above the sea. So far, a tubular conveyor belt is supported in the circumferential direction of six support rollers, and that at mostly regular carrying roller distances.
Die Anforderungen an die Anlagen und die Fördergurte ändern sich nun damit, da derartige Förderer zumeist geradlinig oder nur mit sehr großen Kurvenradien verlaufen. Zudem müssen solche Anlagen meistens auf Stelzen gebaut werden, was eine möglichst geringe Gewichtsbelastung erforderlich bzw. wünschenswert macht, zumal die umgebenden Tragrollen die schwersten Anlagenteile sind. Außerdem sind solche Anlagen oft starken Winden ausgesetzt, die das Herabwehen des Fördermaterials begünstigen. Die Aufgabe der Erfindung besteht nun darin, eine Rohrfördergurtanlage bereit zu stellen, die mit weniger Komponenten auskommt, um Gewicht zu sparen. The demands on the equipment and the conveyor belts are changing now, since such conveyors usually run straight or only with very large curve radii. In addition, such systems usually have to be built on stilts, which makes the lowest possible weight required or desirable, especially since the surrounding support rollers are the heaviest equipment parts. In addition, such facilities are often exposed to strong winds, which favor the downpouring of the material to be conveyed. The object of the invention is to provide a Rohrfördergurtanlage ready, which requires fewer components to save weight.
Gelöst wird diese Aufgabe dadurch, dass sich der Rohrfördergurt ringsherum an vier Tragrollen abstützt.
Die Erfindung wird nun anhand von Ausführungsbeispielen unter Bezugnahme auf schematische Zeichnungen näher erläutert. Es zeigen: This problem is solved in that the tubular conveyor belt is supported around four support rollers. The invention will now be explained in more detail by means of exemplary embodiments with reference to schematic drawings. Show it:
Fig. 1 einen Rohrfördergurt mit kreisförmiger Querschnittgestalt, bei dem 1 a tubular conveyor belt with a circular cross-sectional shape, in which
innerhalb des Fördermaterialtragbereiches drei Tragrollen angeordnet sind, während im Überlappungsbereich eine einzige Tragrolle vorhanden ist; within the Fördermaterialtragbereiches three support rollers are arranged, while in the overlapping region, a single support roller is present;
Fig. 2 eine Tragrollenausführung wie bei Fig. 1, bei dem die Tragrolle im Fig. 2 is a support roller execution as in Fig. 1, wherein the support roller in
Überlappungsbereich konkav ausgebildet ist; Overlap region is concave;
Fig. 3 eine Tragrollenausführung wie bei Fig. 2, wobei hier der Rohrfördergurt eine ovalförmige Querschnittgestalt aufweist. Fig. 3 is a support roller execution as in Fig. 2, in which case the pipe conveyor belt has an oval-shaped cross-sectional shape.
Fig. 1 zeigt einen Rohrfördergurt 1 mit den beiden überlappenden Randzonen A und B bei einer kreisförmigen Querschnittgestalt sowie mit einer tragseitigen Deckplatte 2 für das Fördermaterial und einer laufseitigen Deckplatte 3 aus jeweils einem elastomeren Fig. 1 shows a pipe conveyor belt 1 with the two overlapping edge zones A and B in a circular cross-sectional shape and with a support-side cover plate 2 for the conveying material and a running side cover plate 3 each having an elastomeric
Werkstoff, beispielsweise aus einer vulkanisierten Kautschukmischung auf der Basis von CR. Der Rohrfördergurt ist mit einem eingebetteten Zugträger versehen, insbesondere in Form von mehreren in Fördergurtlängsrichtung parallel verlaufenden Stahlseilen. Bei Stahlseil-Fördergurten ist zumeist noch eine Querarmierung eingebettet Material, for example, from a vulcanized rubber compound based on CR. The pipe conveyor belt is provided with an embedded tension member, in particular in the form of a plurality of steel cables running parallel in the conveyor belt longitudinal direction. For steel cable conveyor belts usually a cross armoring is embedded
(DE 10 2006 044 110 AI). Die Querarmierung kann beispielsweise aus einem (DE 10 2006 044 110 AI). The Querarmierung can for example from a
Synthesecord oder Metallcord gebildet sein. Synthetic cord or metal cord may be formed.
Der Rohrfördergurt 1 stützt sich ringsherum an vier Tragrollen 4 und 5 ab, wobei innerhalb des Fördermaterialtragbereiches drei Tragrollen 4 angeordnet sind, während im The tubular conveyor belt 1 is supported around four support rollers 4 and 5, wherein three support rollers 4 are arranged within the Fördermaterialtragbereiches while in the
Überlappungsbereich A und B eine einzige Tragrolle 5 vorhanden ist. Overlap area A and B, a single support roller 5 is present.
Die einzige Tragrolle 5 im Überlappungsbereich A und B kann ferner länger ausgeführt sein als die drei Tragrollen 4 im Fördermaterialtragbereich.
Fig. 2 zeigt ebenfalls einen Rohrfördergurt 6 mit kreisförmiger Querschnittgestalt. The single support roller 5 in the overlapping area A and B can also be made longer than the three support rollers 4 in the conveying material support area. Fig. 2 also shows a pipe conveyor belt 6 having a circular cross-sectional shape.
Während die drei Tragrollen 7 im Fördermaterialtragbereich die übliche Konstruktion nach dem Stand der Technik aufweisen, ist die einzige Tragrolle 8 im Überlappungsbereich A und B konkav ausgebildet. While the three carrying rollers 7 in the conveying material carrying the usual construction according to the prior art, the single support roller 8 in the overlapping A and B is concave.
Fig. 3 seigt einen Rohrfördergurt 9 mit einer ovalförmigen Querschnittgestalt. Während die drei Tragrollen 10 im Fördermaterialtragbereich die übliche Konstruktion nach dem Stand der Technik aufweisen, ist die einzige Tragrolle 11 im Überlappungsbereich A und B konkav ausgebildet. Mit der ovalförmigen Querschnittgestalt wird die Bauhöhe reduziert.
Fig. 3 seigt a Rohrfördergurt 9 with an oval-shaped cross-sectional shape. While the three support rollers 10 in the conveying material support area have the usual construction according to the prior art, the single support roller 11 is concave in the overlapping area A and B. With the oval-shaped cross-sectional shape, the height is reduced.
Bezugszeichenliste LIST OF REFERENCE NUMBERS
(Teil der Beschreibung) (Part of the description)
I Rohrfördergurt I pipe conveyor belt
2 tragseitige Deckplatte 2 load-bearing cover plate
3 laufseitige Deckplatte 3 running side cover plate
4 Tragrolle 4 carrying roller
5 Tragrolle 5 carrying roller
6 Rohrfördergurt 6 pipe conveyor belt
7 Tragrolle 7 carrying roller
8 Tragrolle 8 carrying roller
9 Rohrfördergurt 9 pipe conveyor belt
10 Tragrolle 10 carrying roller
I I Tragrolle I I carrying role
A Randzone des Rohrfördergurtes (Überlappungsbereich)A edge zone of the tube conveyor belt (overlap area)
B Randzone des Rohrfördergurtes (Überlappungsbereich)
B edge zone of the tube conveyor belt (overlapping area)
Claims
1. Fördergurt mit einer tragseitigen Deckplatte (2) und einer laufseitigen Deckplatte (3) aus jeweils einem elastomeren Werkstoff sowie mit einem eingebetteten Zugträger, wobei der Fördergurt durch Überlappung seiner beiden Gurtflanken unter Ausbildung zweier sich berührenden Randzonen (A, B) zu einem Rohrfördergurt (1, 6, 9) schließbar ist, der sich ringsherum an Tragrollen (4, 5, 7, 8, 10, 11) abstützt, dadurch gekennzeichnet, dass sich der Rohrfördergurt (1, 6, 9) ringsherum an vier Tragrollen (4, 5, 7, 8, 10, 11) abstützt. 1. conveyor belt with a support-side cover plate (2) and a running side cover plate (3) made of an elastomeric material and with an embedded tensile member, wherein the conveyor belt by overlapping its two Gurtflanken to form two touching edge zones (A, B) to a Rohrfördergurt (1, 6, 9) can be closed, which is supported around on support rollers (4, 5, 7, 8, 10, 11), characterized in that the Rohrfördergurt (1, 6, 9) around four support rollers (4 , 5, 7, 8, 10, 11).
2. Fördergurt nach Anspruch 1, dadurch gekennzeichnet, dass innerhalb des 2. Conveyor belt according to claim 1, characterized in that within the
Fördermaterialtragbereiches drei Tragrollen (4, 7, 10) angeordnet sind, während im Überlappungsbereich (A, B) eine einzige Tragrolle (5, 8, 11) vorhanden ist. Fördertragtragbereiches three support rollers (4, 7, 10) are arranged, while in the overlapping region (A, B), a single support roller (5, 8, 11) is present.
3. Fördergurt nach Anspruch 2, dadurch gekennzeichnet, dass die einzige Tragrolle3. Conveyor belt according to claim 2, characterized in that the single support roller
(5, 8, 11) im Überlappungsbereich (A, B) länger ausgeführt ist als die drei Tragrollen (4, 7, 10) im Fördermaterialtragbereich. (5, 8, 11) in the overlapping area (A, B) is made longer than the three support rollers (4, 7, 10) in the conveying material carrying area.
4. Fördergurt nach Anspruch 2 oder 3, dadurch gekennzeichnet, dass die einzige 4. Conveyor belt according to claim 2 or 3, characterized in that the only one
Tragrolle (8, 11) im Überlappungsbereich (A, B) konkav ausgebildet ist. Supporting roller (8, 11) in the overlapping region (A, B) is concave.
5. Fördergurt nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Rohrfördergurt (1, 6) eine kreisförmige Querschnittgestalt aufweist. 5. Conveyor belt according to one of claims 1 to 4, characterized in that the Rohrfördergurt (1, 6) has a circular cross-sectional shape.
6. Fördergurt nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass der Rohrfördergurt (9) eine ovalförmige Querschnittgestalt aufweist. 6. Conveyor belt according to one of claims 1 to 4, characterized in that the pipe conveyor belt (9) has an oval-shaped cross-sectional shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201290000856.3U CN204297501U (en) | 2011-10-06 | 2012-08-20 | With the tubular type conveyer belt of four bearing rollers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102011054220.5 | 2011-10-06 | ||
| DE201110054220 DE102011054220A1 (en) | 2011-10-06 | 2011-10-06 | Pipe conveyor belt with four carrying rollers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2013050200A1 true WO2013050200A1 (en) | 2013-04-11 |
Family
ID=46717840
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2012/066164 WO2013050200A1 (en) | 2011-10-06 | 2012-08-20 | Tubular conveyor belt comprising four carrier rollers |
Country Status (3)
| Country | Link |
|---|---|
| CN (1) | CN204297501U (en) |
| DE (1) | DE102011054220A1 (en) |
| WO (1) | WO2013050200A1 (en) |
Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943817C (en) * | 1950-10-22 | 1956-06-01 | Pohlig Ag J | Belt conveyor system |
| GB2092977A (en) * | 1981-02-18 | 1982-08-25 | Hashimoto Kunio | A method and device for preventing a flexible tubular belt from twisting for use in a tubular belt conveyer |
| DE3606129A1 (en) | 1985-02-27 | 1986-08-28 | Continental Aktiengesellschaft, 30165 Hannover | Belt conveying installation |
| DE3612765A1 (en) | 1986-04-16 | 1987-10-29 | Phb Weserhuette Ag | Rolling belt |
| WO1988004269A1 (en) * | 1986-12-10 | 1988-06-16 | O&K Orenstein & Koppel Aktiengesellschaft | Duct-like belt conveyor |
| JPS63173113U (en) * | 1987-04-30 | 1988-11-10 | ||
| JPS6412007U (en) * | 1987-07-10 | 1989-01-23 | ||
| DE8915255U1 (en) * | 1989-12-29 | 1991-05-02 | VSR Engineering GmbH Fördertechnik, 4330 Mülheim | Roller device for hose belt conveyors etc. |
| EP0336385B1 (en) | 1988-04-07 | 1993-03-31 | Phoenix Aktiengesellschaft | Tubular conveyor belt |
| DE19526467A1 (en) * | 1994-09-09 | 1996-03-14 | Continental Ag | Tubular belt conveyor with endless belt which has sliding edge zones |
| EP0867383A1 (en) * | 1997-03-25 | 1998-09-30 | S.F.B.T. - Société Française de Bandes Transporteuses | Flexible transport belt and its use as a conveyor |
| DE4333839B4 (en) | 1992-10-08 | 2004-07-08 | Phoenix Ag | tubular conveyor belt |
| DE102006044110A1 (en) | 2006-09-20 | 2008-03-27 | Phoenix Conveyor Belt Systems Gmbh | Conveyor belt with transverse reinforcement |
| DE102008024915B3 (en) * | 2008-05-23 | 2009-06-25 | Takraf Gmbh | Conveyor belt steering device for tubular belt conveyor for position correction of conveyor belt in closed condition, has adjustment mechanism, where geometry of mechanism is selected such that lower carrier roller causes steering movement |
-
2011
- 2011-10-06 DE DE201110054220 patent/DE102011054220A1/en active Pending
-
2012
- 2012-08-20 WO PCT/EP2012/066164 patent/WO2013050200A1/en active Application Filing
- 2012-08-20 CN CN201290000856.3U patent/CN204297501U/en not_active Expired - Lifetime
Patent Citations (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE943817C (en) * | 1950-10-22 | 1956-06-01 | Pohlig Ag J | Belt conveyor system |
| GB2092977A (en) * | 1981-02-18 | 1982-08-25 | Hashimoto Kunio | A method and device for preventing a flexible tubular belt from twisting for use in a tubular belt conveyer |
| DE3606129A1 (en) | 1985-02-27 | 1986-08-28 | Continental Aktiengesellschaft, 30165 Hannover | Belt conveying installation |
| DE3612765A1 (en) | 1986-04-16 | 1987-10-29 | Phb Weserhuette Ag | Rolling belt |
| WO1988004269A1 (en) * | 1986-12-10 | 1988-06-16 | O&K Orenstein & Koppel Aktiengesellschaft | Duct-like belt conveyor |
| JPS63173113U (en) * | 1987-04-30 | 1988-11-10 | ||
| JPS6412007U (en) * | 1987-07-10 | 1989-01-23 | ||
| EP0336385B1 (en) | 1988-04-07 | 1993-03-31 | Phoenix Aktiengesellschaft | Tubular conveyor belt |
| DE8915255U1 (en) * | 1989-12-29 | 1991-05-02 | VSR Engineering GmbH Fördertechnik, 4330 Mülheim | Roller device for hose belt conveyors etc. |
| DE4333839B4 (en) | 1992-10-08 | 2004-07-08 | Phoenix Ag | tubular conveyor belt |
| DE19526467A1 (en) * | 1994-09-09 | 1996-03-14 | Continental Ag | Tubular belt conveyor with endless belt which has sliding edge zones |
| EP0867383A1 (en) * | 1997-03-25 | 1998-09-30 | S.F.B.T. - Société Française de Bandes Transporteuses | Flexible transport belt and its use as a conveyor |
| DE102006044110A1 (en) | 2006-09-20 | 2008-03-27 | Phoenix Conveyor Belt Systems Gmbh | Conveyor belt with transverse reinforcement |
| DE102008024915B3 (en) * | 2008-05-23 | 2009-06-25 | Takraf Gmbh | Conveyor belt steering device for tubular belt conveyor for position correction of conveyor belt in closed condition, has adjustment mechanism, where geometry of mechanism is selected such that lower carrier roller causes steering movement |
Also Published As
| Publication number | Publication date |
|---|---|
| CN204297501U (en) | 2015-04-29 |
| DE102011054220A1 (en) | 2013-04-11 |
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