EP2261164A2 - Guide device with middle and tracking ability regulation for a crane equipped with wheels on a crane runway with crane rails - Google Patents
Guide device with middle and tracking ability regulation for a crane equipped with wheels on a crane runway with crane rails Download PDFInfo
- Publication number
- EP2261164A2 EP2261164A2 EP10005378A EP10005378A EP2261164A2 EP 2261164 A2 EP2261164 A2 EP 2261164A2 EP 10005378 A EP10005378 A EP 10005378A EP 10005378 A EP10005378 A EP 10005378A EP 2261164 A2 EP2261164 A2 EP 2261164A2
- Authority
- EP
- European Patent Office
- Prior art keywords
- crane
- console
- guide
- spring
- guide device
- Prior art date
- 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.)
- Withdrawn
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B66—HOISTING; LIFTING; HAULING
- B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
- B66C9/00—Travelling gear incorporated in or fitted to trolleys or cranes
- B66C9/16—Travelling gear incorporated in or fitted to trolleys or cranes with means for maintaining alignment between wheels and track
Definitions
- the invention relates to a guide device for a crane provided with wheels on a crane track with crane rails, wherein the guide means comprises at least two guide rollers which are opposite each other in the region of the flanks of the crane rail a console are held, wherein the console is received transversely to the longitudinal axis of the crane rail movable by a support.
- each crane has a drive.
- a drive includes a head carrier that houses two or more wheels. The two headrests of the crane are connected by the crane girder. To guide the wheels on the crane rails flanges are provided on the wheels.
- crane runways consisting of two substantially mutually parallel crane rails
- Such track devices can be up to + - 50 mm to either side.
- Wheels of wheel flange drives can only compensate for deviations in track gauge of about + - 10 mm. Since all the wheels of a crane are provided with flanges, it can happen in the worst case, that the wheel flange of a wheel runs on the tread of the crane rail, there for a brief moment remains, then, when the track deviation is lower, next to the Crane rail to arrive. This results in significant vibrations in the crane, which can lead to damage to the crane itself, but also endanger people.
- the EP 0 972 740 B1 shows in this context a guide device having two guide rollers, which are held opposite each other in the region of the edges of the crane rail by a bracket, wherein the console is movable transversely to the longitudinal axis of the crane rails and also detectable.
- the guide device is in this case arranged on the front side of the head carrier of the crane.
- the guide rollers can yield to a certain extent to the movement of the wheel of the crane.
- the guide device itself in this case comprises two mutually opposite acting on the console piston cylinder drives, in particular hydraulic cylinders, on the one hand, the movement of the console is made possible relative to the crane rails and on the other hand, the movement of the console can be locked to a shutdown of the wheels of the rails in the To prevent extreme case.
- the wheels In order to make the guide device less prone to such a crane, one has now gone over to make the wheels in relation to the width of the crane rail wider. That is, the wheels have a width that is about 50% to 70% greater than the width of the rail; this depending on the wear of the crane runway, that is, how far the deflection of the crane runway is relative to the center run.
- the object underlying the invention is therefore to develop a guide device of the type mentioned in such a way that it is much simpler in construction and therefore cheaper to produce.
- the console has at least one stop block, wherein the stop block is on both sides under the load of at least one spring, wherein the spring is supported by the support of the console.
- a guide axis is provided for guiding the at least one spring. This means that, in order to prevent the spring from compressing when compressed, the spring is guided through the guide axis, which is preferably telescopic.
- the invention is characterized in that the carrier is designed as a housing, wherein the at least one spring is supported on the housing wall. This means that the counterforce is transmitted from the housing wall to the stop block.
- the housing wall has means for adjusting the spring tension.
- the spring to each side of the stop block by, for example, screws acting on a plate on which the spring rests in the region of the housing wall, can be prestressed.
- the console on Konsol entryen which are mounted displaceably on a sliding axis of the carrier.
- the console above and below the stop block with the springs two Has console guides on a sliding axis. Two console guides are useful to avoid tilting on the sliding axle.
- the guide device according to the invention is advantageously arranged at each end of the head carrier.
- Each of the guide means comprises at least two opposite, forming a pair of rollers, but in heavy cranes, two pairs of rollers may be provided at a guide means.
- the crane designated overall with 1 has the two crane girders 2, which are supported on the head carrier 3. Below the head carrier 3 is the crane rail 4, wherein on both sides of the head carrier 3, the guide means 10 according to the invention are arranged.
- the guide devices 10 according to Fig. 1 show two pairs of guide rollers, wherein the guide rollers abut in pairs on the edge of the crane rail 4.
- the generally designated 10 guide means comprises the trained as a carrier housing 15 which receives the console 20.
- the housing 15 shows two spaced-apart sliding axes 16, on which store the designated 17 console guides.
- the console guide 17 has a sliding bushing 17 a to a permanent Allow sliding on the sliding axles.
- the console 20 also has on both sides a telescopic guide shaft 22.
- the guide shaft 22 supports one end on the housing wall 15a and presses with its other end to the stop block 21.
- the guide shaft 22 is insofar as already stated, telescopically formed, which is why the two parts 22a and 22b of the guide shaft 22 are mounted in each other displaceable.
- a stop plate 23 is provided, which is displaceable in the direction of the longitudinal axis of the guide shaft 22 by screws 25 arranged in the housing wall 15a, whereby the spring characteristic of the spring 27 arranged on the guide axis can be adjusted. That is, the farther the spring 27 is biased, the stiffer the guide means is.
- the console 20 also shows a console support 30, the console support 30 shows a guide pin 32, on which a guide roller table 34 is arranged, which finally receives the guide rollers 35.
- the table 34 is rotatably mounted about the bolt carrier 32.
- the mechanically adjustable limit stops 36 are set to the max. Gleitweg the console 20 is set. This ensures that in case of spring break 20, the crane can be safely continued.
- Fig. 3 shows that the guide table 34 has two guide rollers 35 on both sides of the housing 15.
Abstract
Description
Die Erfindung betrifft eine Führungseinrichtung für einen mit Laufrädern versehenen Kran auf einer Kranbahn mit Kranschienen, wobei die Führungseinrichtung mindestens zwei Führungsrollen umfasst, die einander gegenüberliegend im Bereich der Flanken der Kranschiene durch eine Konsole gehalten sind, wobei die Konsole quer zur Längsachse der Kranschiene beweglich durch einen Träger aufgenommen ist.The invention relates to a guide device for a crane provided with wheels on a crane track with crane rails, wherein the guide means comprises at least two guide rollers which are opposite each other in the region of the flanks of the crane rail a console are held, wherein the console is received transversely to the longitudinal axis of the crane rail movable by a support.
Es sind verschiedene Kranarten bekannt, so zum Beispiel Brückenkräne oder auch Portalkräne. Allen diesen Kranarten ist jedoch gemein, dass diese auf zwei parallel zueinander verlaufenden Kranschienen verfahren werden, die die Kranbahn bilden. Hierzu besitzt jeder Kran ein Laufwerk. Ein Laufwerk umfasst einen Kopfträger, der zwei oder mehr Laufräder aufnimmt. Die beiden Kopfträger des Krans sind durch den Kranträger verbunden. Zur Führung der Laufräder auf den Kranschienen sind Spurkränze an den Laufrädern vorgesehen.There are various types of cranes known, such as overhead cranes or gantry cranes. However, all these types of cranes have in common that they are moved on two mutually parallel crane rails, which form the crane runway. For this, each crane has a drive. A drive includes a head carrier that houses two or more wheels. The two headrests of the crane are connected by the crane girder. To guide the wheels on the crane rails flanges are provided on the wheels.
Es ist allerdings bekannt, dass Kranbahnen, bestehend aus zwei im Wesentlichen parallel zueinander verlaufenden Kranschienen, in horizontaler Richtung uneben sind, das heißt, Spurabweichungen aufweisen. Derartige Spureinrichtungen können bis zu + - 50 mm zu jeder Seite betragen. Räder von Laufwerken mit Spurkranz können allerdings nur Abweichungen im Spurmaß von etwa + - 10 mm ausgleichen. Da nun alle Laufräder eines Krans mit Spurkränzen versehen sind, kann es im ungünstigsten Fall dazu kommen, dass der Spurkranz eines Rades auf die Lauffläche der Kranschiene aufläuft, dort für einen kurzen Augenblick verbleibt, um dann, wenn die Spurmaßabweichung geringer wird, wieder neben die Kranschiene zu gelangen. Hierbei entstehen erhebliche Erschütterungen im Kran, die zum einen zu Schäden am Kran selbst führen können, darüber hinaus aber auch Personen gefährden. Im Weiteren ergeben sich erhebliche horizontale Belastungen der Kranbahn, wenn das Laufrad mit seinem Spurkranz die Schienen der Kranbahn zusammendrückt. Wird hierbei die Belastung der einzelnen Kranschienen zu groß, dann kann es im Extremfall vorkommen, dass die Kranschienen aus der Verankerung gerissen werden.However, it is known that crane runways, consisting of two substantially mutually parallel crane rails, are uneven in the horizontal direction, that is, have lane deviations. Such track devices can be up to + - 50 mm to either side. Wheels of wheel flange drives, however, can only compensate for deviations in track gauge of about + - 10 mm. Since all the wheels of a crane are provided with flanges, it can happen in the worst case, that the wheel flange of a wheel runs on the tread of the crane rail, there for a brief moment remains, then, when the track deviation is lower, next to the Crane rail to arrive. This results in significant vibrations in the crane, which can lead to damage to the crane itself, but also endanger people. Furthermore, there are considerable horizontal loads on the crane runway when the impeller with its wheel flange compresses the rails of the crane runway. If in this case the load on the individual crane rails becomes too great, then in extreme cases it may happen that the crane rails are torn out of the anchoring.
Insofern ist aus der
Die
Die aus der
Um die Führungseinrichtung für einen solchen Kran weniger anfällig zu machen, ist man nunmehr dazu übergegangen, die Laufräder im Verhältnis zur Breite der Kranschiene breiter zu gestalten. Das heißt, dass die Laufräder eine Breite aufweisen, die etwa 50 % bis 70 % über der Breite der Schiene liegt; dies in Abhängigkeit von dem Verschleiß der Kranbahn, das heißt, wie weit die Auslenkung der Kranbahn relativ zum Mittenlauf ist.In order to make the guide device less prone to such a crane, one has now gone over to make the wheels in relation to the width of the crane rail wider. That is, the wheels have a width that is about 50% to 70% greater than the width of the rail; this depending on the wear of the crane runway, that is, how far the deflection of the crane runway is relative to the center run.
Des Weiteren ist die aus der
Die der Erfindung zugrunde liegende Aufgabe besteht demzufolge darin, eine Führungseinrichtung der eingangs genannten Art derart weiterzubilden, dass diese wesentlich einfacher aufgebaut und daher preiswerter herstellbar ist.The object underlying the invention is therefore to develop a guide device of the type mentioned in such a way that it is much simpler in construction and therefore cheaper to produce.
Zur Lösung der Aufgabe wird erfindungsgemäß vorgeschlagen, dass die Konsole mindestens einen Anschlagbock aufweist, wobei der Anschlagbock zu beiden Seiten unter der Last mindestens einer Feder steht, wobei die Feder durch den Träger der Konsole abgestützt ist. Hieraus wird deutlich, dass die Konsole, die quer zur Längsachse des Trägers von dem Träger beweglich aufnehmbar ist, durch die Federn zentriert wird, und zwar in dem Sinne zentriert wird, dass sich die Laufräder des Krans immer im Wesentlichen mittig auf der Kranschiene befinden. Dadurch, dass die Laufräder zwischen 60 % und 70 % breiter sind als die Breite der Schiene, besteht selbst dann, wenn sich erhebliche Abweichungen hinsichtlich der Spur der Kranbahn ergeben, nicht die Gefahr, dass die Laufräder von der Kranschiene abgleiten.To achieve the object, the invention proposes that the console has at least one stop block, wherein the stop block is on both sides under the load of at least one spring, wherein the spring is supported by the support of the console. From this it is clear that the console, which is movably receivable by the carrier transversely to the longitudinal axis of the carrier, is centered by the springs, and is centered in the sense that the wheels of the crane are always substantially centered on the crane rail. The fact that the wheels are between 60% and 70% wider than the Width of the rail is, even if there are significant deviations in terms of the track of the crane runway, not the risk that the wheels slide off the crane rail.
Für den Fall eines Federbruchs wird eine sichere Kranführung durch einstellbare mechanische Endanschläge gewährleistet.In the event of a spring break, safe crane guidance is ensured by adjustable mechanical end stops.
Nach einem weiteren Merkmal der Erfindung ist vorgesehen, dass zur Führung der mindestens einen Feder eine Führungsachse vorgesehen ist. Das heißt, dass, um ein Ausbrechen der Feder bei Stauchen zu verhindern, die Feder durch die Führungsachse geführt ist, die vorzugsweise teleskopierbar ausgebildet ist.According to a further feature of the invention it is provided that a guide axis is provided for guiding the at least one spring. This means that, in order to prevent the spring from compressing when compressed, the spring is guided through the guide axis, which is preferably telescopic.
Nach einem weiteren Merkmal zeichnet sich die Erfindung dadurch aus, dass der Träger als Gehäuse ausgebildet ist, wobei sich die mindestens eine Feder an der Gehäusewandung abstützt. Das heißt, dass die Gegenkraft von der Gehäusewandung auf den Anschlagbock übertragen wird.According to a further feature, the invention is characterized in that the carrier is designed as a housing, wherein the at least one spring is supported on the housing wall. This means that the counterforce is transmitted from the housing wall to the stop block.
Vorteilhaft ist fernerhin, wenn die Gehäusewandung Mittel zur Einstellung der Federspannung aufweist. Um den Weg der Laufräder auf der Kranschiene seitlich zu begrenzen, kann es sinnvoll sein, dies durch eine erhöhte Federspannung zu bewerkstelligen. Insofern ist die Feder zu jeder Seite des Anschlagbocks durch beispielsweise Schrauben, die auf einen Teller wirken, an dem die Feder im Bereich der Gehäusewandung anliegt, vorspannbar.Furthermore, it is advantageous if the housing wall has means for adjusting the spring tension. In order to limit the path of the wheels on the crane rail side, it may be useful to accomplish this by an increased spring tension. In this respect, the spring to each side of the stop block by, for example, screws acting on a plate on which the spring rests in the region of the housing wall, can be prestressed.
Nach einem weiteren Merkmal der Erfindung weist die Konsole Konsolführungen auf, die auf einer Gleitachse des Trägers verschieblich gelagert sind. In Einzelnen ist hierbei vorgesehen, dass die Konsole oberhalb und unterhalb des Anschlagbocks mit den Federn, jeweils zwei Konsolführungen auf einer Gleitachse aufweist. Zwei Konsolführungen sind sinnvoll, um ein Verkanten auf der Gleitachse zu vermeiden.According to a further feature of the invention, the console on Konsolführungen, which are mounted displaceably on a sliding axis of the carrier. In detail, it is provided that the console above and below the stop block with the springs, two Has console guides on a sliding axis. Two console guides are useful to avoid tilting on the sliding axle.
Die erfindungsgemäße Führungseinrichtung ist vorteilhaft an jedem Ende des Kopfträgers angeordnet. Jede der Führungseinrichtungen umfasst mindestens zwei einander gegenüber liegende, ein Paar bildende, Rollen, wobei jedoch bei schweren Kränen auch zwei Rollenpaare bei einer Führungseinrichtung vorgesehen sein können.The guide device according to the invention is advantageously arranged at each end of the head carrier. Each of the guide means comprises at least two opposite, forming a pair of rollers, but in heavy cranes, two pairs of rollers may be provided at a guide means.
Anhand der Zeichnungen wird die Erfindung nachstehend beispielhaft näher erläutert.
- Fig. 1
- zeigt einen Ausschnitt des Krans mit dem Kopfträger und den stirnseitig an dem Kopfträger angeordneten Führungseinrichtungen;
- Fig. 2
- zeigt die Führungseinrichtung im Schnitt;
- Fig. 3
- zeigt eine Aufsicht auf die Führungseinrichtung.
- Fig. 1
- shows a section of the crane with the head carrier and the front side arranged on the head carrier guide means;
- Fig. 2
- shows the guide means in section;
- Fig. 3
- shows a plan view of the guide device.
Der insgesamt mit 1 bezeichnete Kran besitzt die beiden Kranträger 2, die auf dem Kopfträger 3 lagern. Unterhalb des Kopfträgers 3 befindet sich die Kranschiene 4, wobei zu beiden Seiten des Kopfträgers 3 die erfindungsgemäßen Führungseinrichtungen 10 angeordnet sind. Die Führungseinrichtungen 10 gemäß
Die Ausbildung der Führungseinrichtung ergibt sich nunmehr aus
Die mechanisch einstellbaren Endanschläge 36 werden auf den max. Gleitweg der Konsole 20 eingestellt. Damit wird sichergestellt, dass bei Federbruch 20 der Kran sicher weitergeführt werden kann.The mechanically adjustable limit stops 36 are set to the max. Gleitweg the
Aus
Claims (7)
dadurch gekennzeichnet,
dass die Konsole (20) mindestens einen Anschlagbock (21) aufweist, wobei der Anschlagbock (21) zu beiden Seiten unter der Last mindestens einer Feder (27) steht, wobei die Feder (27) durch den Träger (15) der Konsole (20) abgestützt ist.Guiding device (10) for a crane provided with wheels (1) on a crane track with crane rails (4), wherein the guide device (10) comprises at least two guide rollers (35) which are opposite one another in the region of the flanks of the crane rail (4) Console (20) are held, wherein the bracket (20) is received transversely to the longitudinal axis of the crane rail (4) movable by a support (15),
characterized,
that the bracket (20) has at least one stop block (21), said stop plate (21) on both sides under the weight of at least one spring (27), said spring (27) through the carrier (15) of the console (20 ) is supported.
dadurch gekennzeichnet,
dass zur Führung der mindestens einen Feder (27) eine Führungsachse (22) vorgesehen ist.Guide device (10) for a wheeled crane (1) according to claim 1,
characterized,
in that a guide axis (22) is provided for guiding the at least one spring (27).
dadurch gekennzeichnet,
dass die Führungsachse (22) teleskopierbar ist.Guiding device (10) for a wheeled crane (1) according to any one of the preceding claims,
characterized,
that the guide axis (22) is telescopic.
dadurch gekennzeichnet,
dass der Träger (15) als Gehäuse ausgebildet ist, wobei sich die mindestens eine Feder (27) an der Gehäusewandung (15a) abstützt.Guide device (10) for a wheeled crane (1) according to one of the preceding claims,
characterized,
in that the carrier (15) is designed as a housing, wherein the at least one spring (27) is supported on the housing wall (15a).
dadurch gekennzeichnet,
dass die Gehäusewandung (15a) Mittel (23, 25) zur Einstellung der Federspannung aufweist.Guide device (10) for a wheeled crane (1) according to one of the preceding claims,
characterized,
that the housing wall (15a) means (23, 25) for adjusting the spring tension.
dadurch gekennzeichnet,
dass die Konsole (20) Konsolführungen (17) aufweist, die auf einer Gleitachse (16) des Trägers (15) verschieblich gelagert sind.Guide device (10) for a wheeled crane (1) according to one of the preceding claims,
characterized,
in that the console (20) has console guides (17) which are displaceably mounted on a sliding axle (16) of the carrier (15).
dadurch gekennzeichnet,
dass die Konsole (20) oberhalb oder unterhalb des Anschlagbocks (21) mit den Federn (27) jeweils zwei Konsolführungen (17) auf einer Gleitachse (16) aufweist.Guide device (10) for a wheeled crane (1) according to one of the preceding claims,
characterized,
that the console (20) above or below the stop block (21) with the springs (27) each have two console guides (17) on a sliding axis (16).
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE200920008165 DE202009008165U1 (en) | 2009-06-13 | 2009-06-13 | Guide device with center and straight-line control for a crane fitted with wheels on a crane track with crane rails |
Publications (2)
Publication Number | Publication Date |
---|---|
EP2261164A2 true EP2261164A2 (en) | 2010-12-15 |
EP2261164A3 EP2261164A3 (en) | 2011-12-07 |
Family
ID=41011716
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP10005378A Withdrawn EP2261164A3 (en) | 2009-06-13 | 2010-05-22 | Guide device with middle and tracking ability regulation for a crane equipped with wheels on a crane runway with crane rails |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP2261164A3 (en) |
DE (1) | DE202009008165U1 (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102627224A (en) * | 2012-03-20 | 2012-08-08 | 无锡国电华新起重运输设备有限公司 | Bridge of bridge crane |
CN108100867A (en) * | 2018-02-06 | 2018-06-01 | 上海振华重工(集团)股份有限公司 | Crane travelling gear carrying tooling |
CN108458882A (en) * | 2017-02-22 | 2018-08-28 | 上海神尹重工机械设备有限公司 | A kind of parallel benchmaring device of digital display type |
CN108821112A (en) * | 2018-07-02 | 2018-11-16 | 合肥市春华起重机械有限公司 | A kind of OTC's trolley mechanism that can independently slow down |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN107915121A (en) * | 2017-11-01 | 2018-04-17 | 芜湖市长江起重设备制造有限公司 | A kind of guide-roller arrangement for lifting head rack |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0972740B1 (en) | 1998-07-16 | 2002-12-04 | Werner Herz | Guiding device |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5247255A (en) * | 1975-10-08 | 1977-04-14 | Tatsumi Tanaka | Snake-travel preventing apparatus for an overhead travelling crane |
DE9304210U1 (en) * | 1993-03-20 | 1993-06-17 | C. Haushahn Automationssysteme Gmbh, 7000 Stuttgart, De |
-
2009
- 2009-06-13 DE DE200920008165 patent/DE202009008165U1/en not_active Expired - Lifetime
-
2010
- 2010-05-22 EP EP10005378A patent/EP2261164A3/en not_active Withdrawn
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP0972740B1 (en) | 1998-07-16 | 2002-12-04 | Werner Herz | Guiding device |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102627224A (en) * | 2012-03-20 | 2012-08-08 | 无锡国电华新起重运输设备有限公司 | Bridge of bridge crane |
CN108458882A (en) * | 2017-02-22 | 2018-08-28 | 上海神尹重工机械设备有限公司 | A kind of parallel benchmaring device of digital display type |
CN108458882B (en) * | 2017-02-22 | 2021-03-12 | 上海神尹科技股份有限公司 | Digital display type parallel reference detection device |
CN108100867A (en) * | 2018-02-06 | 2018-06-01 | 上海振华重工(集团)股份有限公司 | Crane travelling gear carrying tooling |
CN108100867B (en) * | 2018-02-06 | 2024-01-23 | 上海振华重工(集团)股份有限公司 | Crane travelling mechanism carrying tool |
CN108821112A (en) * | 2018-07-02 | 2018-11-16 | 合肥市春华起重机械有限公司 | A kind of OTC's trolley mechanism that can independently slow down |
Also Published As
Publication number | Publication date |
---|---|
EP2261164A3 (en) | 2011-12-07 |
DE202009008165U1 (en) | 2009-08-27 |
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