EP1084980B1 - Chariot, de préférence chariot distributeur de grue - Google Patents

Chariot, de préférence chariot distributeur de grue Download PDF

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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
Application number
EP00119929A
Other languages
German (de)
English (en)
Other versions
EP1084980A1 (fr
Inventor
Heipl Andreas
Zerza Horst
Schmidt Martin
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Liebherr Werk Biberach GmbH
Original Assignee
Liebherr Werk Biberach GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Liebherr Werk Biberach GmbH filed Critical Liebherr Werk Biberach GmbH
Publication of EP1084980A1 publication Critical patent/EP1084980A1/fr
Application granted granted Critical
Publication of EP1084980B1 publication Critical patent/EP1084980B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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)

Claims (9)

  1. Chariot, de préférence chariot distributeur de grue (7), comprenant un dispositif pour rouler sur une voie plus large et une voie plus étroite, à base de supports ou de rails parallèles entre eux, de préférence pour rouler sur des membrures d'angle (2, 4; 5, 6) inférieures formant des rails d'une partie de flèche (1) extérieure et d'une partie de flèche (2) intérieure pouvant sortir de cette partie et rentrer dans celle-ci de façon télescopique, qui se compose de systèmes à trois ou quatre membrures fermés au plan statique,
       respectivement deux roues porteuses (14) se faisant face, qui recouvrent par l'extérieur les supports de la voie (3, 4) plus large, et respectivement deux autres roues porteuses (25) se faisant face, qui recouvrent par l'extérieur les supports de la voie (5, 6) plus étroite et dont les axes (22) montés de façon flottante sont logés de façon coulissante axialement, étant disposées sur le cadre (8, 9, 10, 11, 13) du chariot (7), caractérisé en ce que les roues porteuses (25) peuvent être déplacées par un dispositif de coulissement dans leur position active vers l'intérieur et dans leur position inactive vers l'extérieur.
  2. Chariot selon la revendication 1, caractérisé en ce que le dispositif coulissant comprend des ressorts de pression (23) faisant coulisser les axes de roue (22) coulissants dans leur position déployée les uns vers les autres, par exemple des ressorts de pression, et en ce que des guides sont prévus entre les voies de largeur différente, sur lesquelles roulent des coulisseaux ou des galets (35) reliés aux axes de roue coulissants.
  3. Chariot selon la revendication 1 ou 2, caractérisé en ce qu'aux axes de roue (22) coulissants sont reliés des pivots (50) qui s'engagent dans la zone de transition des voies dans des guides (55) reliés aux supports (3, 4) de la voie plus large, qui font coulisser les axes de roue entre les largeurs de voie.
  4. Chariot selon l'une quelconque des revendications 1 à 3, caractérisé en ce que les axes de roue (22) coulissants sont pourvus de sécurités antitorsion, qui s'appuient contre des butées (31) solidaires du cadre.
  5. Chariot selon la revendication 4, caractérisé en ce que la sécurité antitorsion se compose d'un support (28) coudé, dont une branche (29) entoure avec une rainure ou un trou oblong (30) un coulisseau (31) solidaire du cadre ou un galet.
  6. Chariot selon l'une quelconque des revendications 1 à 5, caractérisé en ce que les coulisseaux ou galets (35) latéraux sont posés sur le support (28) coudés.
  7. Chariot selon l'une quelconque des revendications 1 à 6, caractérisé en ce qu'aux axes de roue (22) coulissants sont reliés des leviers d'appui (36) sollicités par ressorts qui peuvent s'appuyer dans la position déployée les uns vers les autres des axes de roue (22) contre des butées (40) solidaires du cadre, reposent sans effet sur les butées (40) lorsque les axes de roue (22) sont dans l'état rentré et sont basculés par des cames de guidage (45) solidaires de la voie entre leurs positions actives et leurs positions inactives.
  8. Chariot selon l'une quelconque des revendications 1 à 7, caractérisé en ce que les roues porteuses (25) logées de façon rotative sur les axes (22) coulissants sont situées par rapport à leurs plans de roulement plus haut que les roues porteuses (14) logées sur des axes (15) fixes.
  9. Chariot selon l'une quelconque des revendications 1 à 8, caractérisé en ce que sur le cadre sont logés des galets d'appui (18) autour d'axes perpendiculaires aux roues porteuses (14, 25), qui peuvent s'appuyer contre les côtés ou les bords situés à l'extérieur des membrures porteuses (3, 4) de la voie plus large.
EP00119929A 1999-09-17 2000-09-13 Chariot, de préférence chariot distributeur de grue Expired - Lifetime EP1084980B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE29916416U 1999-09-17
DE29916416U DE29916416U1 (de) 1999-09-17 1999-09-17 Wagen, vorzugsweise Kran-Laufkatze

Publications (2)

Publication Number Publication Date
EP1084980A1 EP1084980A1 (fr) 2001-03-21
EP1084980B1 true EP1084980B1 (fr) 2004-12-08

Family

ID=8079082

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00119929A Expired - Lifetime EP1084980B1 (fr) 1999-09-17 2000-09-13 Chariot, de préférence chariot distributeur de grue

Country Status (4)

Country Link
EP (1) EP1084980B1 (fr)
AT (1) ATE284366T1 (fr)
DE (2) DE29916416U1 (fr)
ES (1) ES2232366T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
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 (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7019616U (de) 1970-05-26 1970-11-05 Demag Ag Laufkatze, insbesondere unterflansch-haengekatze.
DE2236785C2 (de) * 1972-07-26 1973-11-22 Liebherr, Hans, Dr.-Ing. E.H., 7950 Biberach Laufkatzenausleger
FR2211393B1 (fr) * 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
FR2236770A1 (en) 1973-07-03 1975-02-07 Rock Sa Tower crane telescopic jib crab - has stepped rollers for continuous running on rails of different gauge
US3870163A (en) 1973-12-27 1975-03-11 Pierre Joseph Pingon Telescopic boom and carriage with shiftable wheels therefor
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

Also Published As

Publication number Publication date
ATE284366T1 (de) 2004-12-15
DE50008893D1 (de) 2005-01-13
EP1084980A1 (fr) 2001-03-21
DE29916416U1 (de) 2000-04-13
ES2232366T3 (es) 2005-06-01

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