EP1084980B1 - Wagen, vorzugsweise Kran-Laufkatze - Google Patents
Wagen, vorzugsweise Kran-Laufkatze Download PDFInfo
- Publication number
- EP1084980B1 EP1084980B1 EP00119929A EP00119929A EP1084980B1 EP 1084980 B1 EP1084980 B1 EP 1084980B1 EP 00119929 A EP00119929 A EP 00119929A EP 00119929 A EP00119929 A EP 00119929A EP 1084980 B1 EP1084980 B1 EP 1084980B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- rollers
- carrier
- axles
- track
- accordance
- 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.)
- Expired - Lifetime
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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
- B66C9/06—Travelling gear incorporated in or fitted to trolleys or cranes for more than one rail gauge
Definitions
- the invention relates to a carriage, preferably a crane trolley, with a Device for driving from a wider and a narrower, from each other parallel tracks or rails existing track according to the preamble of claim 1, preferably for driving the rail forming lower corner straps of an outer boom part and a from this telescopic and telescoping inner jib part, made of static closed three- or Viergurtsystemen exist.
- the object of the invention is therefore to provide a car or a crane trolley to provide at the beginning specified type, the or an automatic and safe Track changes at full speed also possible when the tracks forming the tracks Carrier or rails Parts of statically closed three- or four-belt systems are.
- this object is achieved in that on the frame of Wagens two opposing wheels, which from the outside the Carriers overlap the wider track, and two each opposite each other Wheels are mounted, the outside of the carrier of the narrower Overlap track and their axially mounted axes mounted axially displaceable and by a displacement device to its active position inside and in their inactive position are displaced outwards.
- the carriage according to the invention or the crane trolley according to the invention runs hanging from the side lower straps of a shoring or jib, the one of a statically closed three- or Viergurtsystem in usual lattice construction consists.
- the trolley overrides the connection area between the outer and the telescoped inner boom part, the four become the wheels mounted on the displaceable axles extend towards each other, so that they run on the lateral lower straps of the outer boom part and those of The wheels running out of the lower straps of the outer arm part run into the void and are functionless.
- the displacement device preferably consists of the displaceable wheel axles in their mutually extended position shifting springs, e.g. Compression springs, with guides provided between the different width tracks are on those with the sliding axles connected sliding blocks or scrolling.
- the springs load the displaceable in the axial direction Wheel axles in their mutually extended position, so that the wheel axles be pushed together on the narrower track when over the guides running rollers or sliding blocks a corresponding pushing the Allow wheel axles on the narrower track.
- the displaceable Wheel axles during the return of the trolley by the running over the guides Sliding blocks or rollers moved outward to their inactive position.
- the displaceable Wheel axles are provided with anti-rotation, which are resistant to frame Support abutment.
- the anti-rotation devices can be made from an angled Carrier consist of a leg with a groove or a slot one frame-fixed sliding block or a role borders.
- the lateral sliding blocks or rollers are expediently in the angled Carrier arranged.
- the at the slidable axes rotatably mounted rollers with respect to the through the Wheels defined levels are higher than those stored on the fixed axles Castors.
- rollers mounted, which are against the outer sides or edges the carrier of the wider track can create. These rollers support the Trolley or the trolley against lateral forces, if this on the wider Track run.
- FIG. 1 is a front view of a two-piece boom of a tower crane can be seen, which consists of an outer boom part 1 and an inner boom part. 2 consists of austeleskopierbar from the outer boom part 1 and in this again is retractable. The leadership of austeleskopierbaren inner jib part 1 in the outer is known per se and is therefore not explained here.
- Both jib parts 1, 2 consist of conventional lattice girders consisting of closed Three-belt systems with the corners stiffening belt straps.
- the lower Belt carrier 3, 4 of the outer jib part 1 and 5, 6 of the inner jib part 2 serve in the usual way as rails for the rollers of the crane trolley 7.
- the trolley 7 is based with their Impellers on the lower chords 3, 4 of the outer boom part 2 from.
- the trolley 7 consists of a base frame, the lateral support 8, 9 in their middle areas with down projecting support pieces 10, 11 are provided by a cross member 13 to the Trolley carrying frame are connected.
- the side frame spars 8, 9 are mounted two pairs of rollers, namely rollers 14 whose axes 15 in with the side rails 8, 9 welded bushings 16 immovable and are held non-rotatably and on the freely projecting pin via rolling bearings the rollers 14 are mounted.
- This rollers 14 run on the top Running surfaces of the lower straps 3, 4 of the outer boom part 1.
- axis 22 With the axis 22 is in the region of the base of the compression spring 23 halternden hole welded to the upstanding leg 27 of an angled support 28, the is provided for this purpose with a bore into which the axis 22 in the off Fig. 4 is inserted apparent manner.
- the right angle of the leg 27 Angled leg 29 of the carrier 28 is parallel to the axis 22 and is provided with a slot 30 in which a sliding block 31 is slidably guided its holder 32 welded to the frame rail 8 of the trolley support frame is.
- the slidable guided in the slot 30 sliding block 31 thus serves as anti-rotation device for the axis 22nd
- journal 34 On the leg 29 of the carrier 28 is in the region of the bend a journals 34 welded, which is perpendicular to the axis 22. On this journal 34, a roller 35 is mounted, each on the vertical outer sides the corner straps 3, 5 of the jib parts 1, 2 amounts.
- the bearing legs for a flap-shaped Lever 36 form, which is parallel to the frame spar 8 axis 37 is pivotally mounted on the sheets 35.
- the lever 36 is as two-armed Lever formed, wherein the lever arm 38 by a leg spring in the direction on an abutment-forming block 40 is acted upon, in the from the Figs. 5 and 6 apparent manner with the frame spar 8 of the support frame of Trolley is welded.
- the inwardly projecting lever arm 42 of the lever 36 is formed as a bearing axis on which a roller 43 is freely rotatably mounted.
- This roller 43 cooperates with a cam guide 45 (FIGS. 2 and 5) which in the transition region between the outer and the inner boom part on the outer boom part 1 is attached. If the trolley 7 passes over this curve 45, it will the inner lever arm 42 via the roller 43 in the manner shown in FIG. 5 way pressed down so that the outer, longer lever arm 38 on the abutment 40 is swung out.
- the trolley 7 passes over the curve 45 in the direction of the inner, from the outer Jib part austeleskop striving boom part 2, pivots the leg spring 30 after the roll 43 from the curve 45, the lever arm 38 in the of Fig. 7 apparent manner on the frame spar 8 such that the abutting surface forming Front side of the lever arm 38 is located in front of the abutment 40 and thus against the Abutment 40 abuts when acting on the trolley lateral forces, these seek to move laterally against the action of the compression springs 23.
- the trolley 7 only runs on the rollers 14, which is Run level of slidable in the axial direction rollers 25 higher than that of Casters 14, so that the rollers 25 with the corner straps 3, 4 is not in contact come.
- Fig. 9 shows a side view and a plan view of the belt carrier 3 and 5 of the outer and inner jib part at a time when the leading Wheels 14 of the trolley 7 straight from the wider track forming Gurtträgem expire the outer boom part and the leading axially displaceable Casters 25 already pushed together on the narrower track of the inner boom part are and are just on the treads 3, 4 of the narrower Set down the lane.
- the left part of Fig. 9 run on the Running surfaces of the belt carrier 3, 4 of the outer boom part 1 only on the rigid Axles mounted wheels 14, while the axially displaceable wheels 25th are out of engagement with the treads because they are in a higher level.
- Fig. 10 shows the wheels of the trolley in a state in which the front Impellers the connection area between the outer and inner boom part already overrun.
- the wheels 25 run on the through the treads the belt carrier 5, 6 formed narrower track.
- the trailing wheels 14th are freely floating outside of the treads formed by the treads Track.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Jib Cranes (AREA)
- Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)
- Handcart (AREA)
Description
- Fig. 1
- die Vorderansicht eines Kranauslegers, bestehend aus einem äußeren Auslegerteil, in dem ein inneres Auslegerteil austeleskopierbar und einziehbar geführt ist, mit einer auf den unteren seitlichen Gurten des äußeren Auslegerteils laufenden Laufkatze,
- Fig. 2
- eine Seitenansicht des Auslegers mit Laufkatze nach Fig. 1,
- Fig. 3
- eine Draufsicht auf den Ausleger und die Laufkatze nach den Fig. 1 und 2, wobei von den Auslegern der besseren Übersichtlichkeit halber nur die Untergurte dargestellt sind,
- Fig. 4
- einen Horizontalschnitt durch einen Radsatz der Laufkatze,
- Fig. 5
- einen vergrößerten Ausschnitt aus Fig. 1,
- Fig. 6
- eine der Fig. 5 entsprechende Darstellung, in der das Laufrad und die Laufradachse geschnitten dargestellt sind,
- Fig. 7
- eine der Fig. 5 entsprechende Darstellung, in der die axial verschieblichen Laufradachsen auf die schmalere Spur zusammengefahren sind,
- Fig. 8
- eine der Fig. 7 entsprechende Darstellung, in der das Laufrad und die Laufradachse geschnitten dargestellt sind,
- Fig. 9
- eine Draufsicht und eine zugehörige Seitenansicht der Laufräder vor dem Auflauf der verschieblichen Laufräder auf die schmalere Spur in schematischer Darstellung und
- Fig. 10
- eine der Fig. 9 entsprechende Darstellung, in der die Räder der vorderen verschieblichen Achsen auf die Gurte der schmaleren Spur aufgelaufen sind.
Claims (9)
- Wagen, vorzugsweise Kran-Laufkatze (7), mit einer Einrichtung zum Befahren von einer breiteren und einer schmaleren, aus zueinander parallelen Trägern oder Schienen bestehenden Spur, vorzugsweise zum Befahren der Schienen bildenden unteren Eckgurte (2, 4; 5, 6) eines äußeren Auslegerteils (1) und eines aus diesem aus- und in diesen einteleskopierbaren inneren Auslegerteils (2), die aus statisch geschlossenen Drei- oder Viergurtsystemen bestehen, wobei
an dem Rahmen (8, 9, 10, 11, 13) des Wagens (7) jeweils zwei einander gegenüberliegende Laufräder (14), die von außen her die Träger der breiteren Spur (3, 4) übergreifen, und jeweils zwei weitere einander gegenüberliegende Laufräder (25) gelagert sind, die von außen her die Träger der schmaleren Spur (5, 6) übergreifen und deren fliegend gelagerten Achsen (22) axial verschieblich gelagert sind, dadurch gekennzeichnet, daß die Laufräder (25) durch eine Verschiebeeinrichtung in ihre aktive Stellung nach innen und ihre inaktive Stellung nach außen verschieblich sind. - Wagen nach Anspruch 1, dadurch gekennzeichnet, daß die Verschiebeeinrichtung aus die verschieblichen Radachsen (22) in ihre aufeinander zu ausgefahrene Stellung verschiebenden Federn (23), z.B. Druckfedern, bestehen, und daß Führungen zwischen den unterschiedlich breiten Spuren vorgesehen sind, auf denen mit den verschieblichen Radachsen verbundene Gleitsteine oder Rollen (35) laufen.
- Wagen nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß mit den verschieblichen Radachsen (22) Zapfen (50) verbunden sind, die im Übergangsbereich der Spuren in mit den Trägern (3, 4) der breiteren Spur verbundenen Führungen (55) greifen, die die Radachsen zwischen den Spurweiten verschieben.
- Wagen nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die verschieblichen Radachsen (22) mit Verdrehsicherungen versehen sind, die sich gegen rahmenfeste Widerlager (31) abstützen.
- Wagen nach Anspruch 4, dadurch gekennzeichnet, daß die Verdrehsicherung aus einem abgewinkelten Träger (28) besteht, dessen einer Schenkel (29) mit einer Nut oder einem Langloch (30) einen rahmenfesten Gleitstein (31) oder eine Rolle einfaßt.
- Wagen nach einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, daß die seitlichen Gleitsteine oder Rollen (35) an dem abgewinkelten Träger (28) angeordnet sind.
- Wagen nach einem der Ansprüche 1 bis 6, dadurch gekennzeichnet, daß mit den verschieblichen Radachsen (22) federbelastete Stützhebel (36) verbunden sind, die sich in der aufeinander zu ausgefahrenen Stellung der Radachsen (22) gegen rahmenfeste Widerlager (40) anlegen können, sich im eingefahrenen Zustand der Radachsen (22) wirkungslos auf den Widerlagern (40) aufruhen und durch spurfeste Führungskurven (45) zwischen ihren aktiven und wirkungslosen Stellungen verschwenkt werden.
- Wagen nach einem der Ansprüche 1 bis 7, dadurch gekennzeichnet, daß die an den verschieblichen Achsen (22) drehbar gelagerten Laufräder (25) in Bezug auf deren Laufebenen höher liegen als die an festen Achsen (15) gelagerten Laufräder (14).
- Wagen nach einem der Ansprüche 1 bis 8, dadurch gekennzeichnet, daß an dem Rahmen um zu den Laufräder (14, 25) rechtwinkelige Achsen Stützrollen (18) gelagert sind, die sich gegen die außen liegenden Seiten oder Kanten der Traggurte (3, 4) der breiteren Spur anlegen können.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE29916416U DE29916416U1 (de) | 1999-09-17 | 1999-09-17 | Wagen, vorzugsweise Kran-Laufkatze |
DE29916416U | 1999-09-17 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1084980A1 EP1084980A1 (de) | 2001-03-21 |
EP1084980B1 true EP1084980B1 (de) | 2004-12-08 |
Family
ID=8079082
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP00119929A Expired - Lifetime EP1084980B1 (de) | 1999-09-17 | 2000-09-13 | Wagen, vorzugsweise Kran-Laufkatze |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP1084980B1 (de) |
AT (1) | ATE284366T1 (de) |
DE (2) | DE29916416U1 (de) |
ES (1) | ES2232366T3 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10022658B4 (de) | 1999-06-28 | 2007-10-04 | Terex-Demag Gmbh & Co. Kg | Teleskopkran |
DE20313615U1 (de) * | 2003-09-02 | 2005-01-13 | Liebherr-Werk Biberach Gmbh | Kran |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2236785C2 (de) * | 1972-07-26 | 1973-11-22 | Liebherr, Hans, Dr.-Ing. E.H., 7950 Biberach | Laufkatzenausleger |
FR2211393B1 (de) * | 1972-12-27 | 1976-10-29 | Pingon Pierre Joseph | |
FR2235078A1 (en) * | 1973-06-29 | 1975-01-24 | Cadillon Roger | Telescopic crane jib - has at least two telescoping open structure members for transporting jib in compact form |
IT1059320B (it) * | 1976-01-22 | 1982-05-31 | Cattaneo & Panzeri | Braccio di gru previsto in due o piu tronchi telescopici di forma particolare con relativo dispositivo di sfilaggio e rientro automatico e con carrellino scorrevo le su ambedue i tronchi |
FR2346277A1 (fr) * | 1976-04-02 | 1977-10-28 | Potain Sa | Perfectionnements pour une fleche telescopique de grue equipee d'un chariot distributeur |
LU85761A1 (fr) * | 1985-02-06 | 1986-09-02 | Fiordiligi Societe Anonyme | Fleche telescopique d'une grue a tour ou analogue |
LU85934A1 (fr) * | 1985-06-05 | 1987-01-13 | Fiordiligi S A | Fleche telescopique d'une grue a tour ou analogue |
-
1999
- 1999-09-17 DE DE29916416U patent/DE29916416U1/de not_active Expired - Lifetime
-
2000
- 2000-09-13 EP EP00119929A patent/EP1084980B1/de not_active Expired - Lifetime
- 2000-09-13 AT AT00119929T patent/ATE284366T1/de active
- 2000-09-13 DE DE2000508893 patent/DE50008893D1/de not_active Expired - Lifetime
- 2000-09-13 ES ES00119929T patent/ES2232366T3/es not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
EP1084980A1 (de) | 2001-03-21 |
ATE284366T1 (de) | 2004-12-15 |
DE29916416U1 (de) | 2000-04-13 |
DE50008893D1 (de) | 2005-01-13 |
ES2232366T3 (es) | 2005-06-01 |
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