EP0039963A1 - Turmdrehkran - Google Patents

Turmdrehkran Download PDF

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Publication number
EP0039963A1
EP0039963A1 EP81200430A EP81200430A EP0039963A1 EP 0039963 A1 EP0039963 A1 EP 0039963A1 EP 81200430 A EP81200430 A EP 81200430A EP 81200430 A EP81200430 A EP 81200430A EP 0039963 A1 EP0039963 A1 EP 0039963A1
Authority
EP
European Patent Office
Prior art keywords
mast
cable
boom
carriage
pylon
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.)
Granted
Application number
EP81200430A
Other languages
English (en)
French (fr)
Other versions
EP0039963B1 (de
Inventor
Karel Helena August Theyskens
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.)
Individual
Original Assignee
Individual
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
Priority claimed from BE2/58514A external-priority patent/BE882845A/nl
Application filed by Individual filed Critical Individual
Priority to AT81200430T priority Critical patent/ATE5871T1/de
Publication of EP0039963A1 publication Critical patent/EP0039963A1/de
Application granted granted Critical
Publication of EP0039963B1 publication Critical patent/EP0039963B1/de
Expired 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
    • B66C11/00—Trolleys or crabs, e.g. operating above runways
    • B66C11/16—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear
    • B66C11/18—Rope, cable, or chain drives for trolleys; Combinations of such drives with hoisting gear comprising endless ropes or cables

Definitions

  • the present invention relates to a tower crane which comprises a mast and a telescopic boom mounted on the latter, with a carriage, this boom comprising at least two extendable parts, namely a foot part fixed to the mast and a tip part. sliding, each of them having a rolling track extending in its longitudinal direction for the carriage, the boom being provided with means for locking the two parts relative to each other, the crane having a winch and a cable fixed to the latter, for the extension and removal of the boom as well as for the movement of the carriage on the boom, a first part of which can circulate the carriage from the mast, is integral with this carriage and extends via at least one cable pulley mounted at the spaced end of the mast, from the tip part of the boom, towards the winch, while a second part which can circulate the carriage towards the mat is also attached to it hoist and extends via at least one cable pulley mounted on the end situated on the side of the mast, from the foot part of the boom, towards the winch, the two parts of the cable being wound in such
  • the first part of cable extends from the cable pulley on the far end of the mast, from the tip part of the boom, towards the mast to pass over a pulley.
  • cable which is mounted on the end directed towards the mast of this point part then moves away from the mast and passes around a cable pulley which is mounted on the far end of the mast, from the foot part of the boom.
  • This first part then returns to the mast, either directly towards the winch when it is mounted on the foot part of the boom, or by passing over a cable pulley mounted on this foot part, against the mast, towards the lower side of the mast or the frame carrying this mast, when the winch is mounted there.
  • the second part of the cable extends from the carriage directly towards the end situated on the mast, of the foot part of the boom and is fixed there to the winch, when the latter is mounted on this part of the foot, or passes in this place on a pulley mounted on this part of the foot, towards the lower side of the tower crane, when the winch is mounted at the base of this crane.
  • the first part of the cable can circulate the carriage from the mast when the boom is set back and its parts are connected together.
  • the boom portions are released from each other while the carriage is automatically made integral with the tip portion of the boom.
  • the carriage Using the first cable part, it is then possible to bring the boom in extension, the carriage therefore accompanying the movement of the tip part of the boom.
  • the carriage To return the boom to the retracted position, the carriage must first be relocked on the free end of the tip part of the boom.
  • the carriage is pulled towards the mast, with the result that the tip part of the arrow enters the foot part.
  • the object of the invention is to eliminate these drawbacks and to offer a tower crane which comprises a mast and a telescopic boom mounted on the latter, with a carriage which can be brought in a very simple manner to circulate over the entire length of the boom, the latter being in complete extension as well as completely in withdrawal, as well as in the various intermediate positions of this arrow, without the arrow having to be brought out or coming in, while complex blocking mechanisms for locking the carriage on the boom is not required for removal or extension of the boom.
  • the first part of the cable extends via the cable pulley on the far end of the mast, from the tip part of the boom, directly towards the mast, at least up to the part at the foot of the boom, so that this part of cable can not only make the carriage circulate towards the end of the boom remote from the mast but also, when the movement of the carriage in the direction of the far end of the mast, of the tip part of the arrow is pocketed, can pull this part of tip in the foot part of the boom, while the second part of the cable passes first over the cable pulley at the end situated on the side of the mast, of the foot part of the boom, but then moves away again from the mast until '' to a cable pulley which is mounted at the far end of the mast, from this part of the foot of the boom, returns around this pulley in the direction of the mast, passes over at least one cable pulley at the end directed towards the mast, from the tip part of the boom, then moves away again from the mast and finally passing on a second cable pulley mounted at
  • the carriage can be at one end of the boom, while the part of cable connected to this carriage which / performs the exit or withdrawal of the boom, exerts traction in the opposite direction to the direction of sliding of the tip part of the arrow, so that it suffices that the carriage is held against a stop at the end of the arrow and no engagement and disengageable coupling mechanism of the carriage with the arrow is not necessary.
  • the return or exit of the boom can also take place when the carriage is not at one end of the boom, but then this carriage must be locked on a part of the boom.
  • a simple blocking mechanism can be used for this purpose which can, for example, be manually operated remotely. In any case, the carriage can always be moved over any the length of the boom, without the latter going in or out, regardless of the sliding position of the boom.
  • the winch is mounted on the end situated on the side of the mast, of the foot part of the boom, and the ends, extending up to the foot part of the arrow, two parts of the cable are fixed directly to the winch drum at this end of the foot part.
  • the two cable parts are separate parts which are each fixed by one end to the carriage and the other end are wound in the opposite direction on the winch drum and are fixed to it.
  • the figure is a schematic side elevational view of part of a tower crane according to the invention.
  • the tower crane comprises a mast 1, which can also be telescopic and which is mounted either fixedly, or with a possibility of pivoting on / a frame not shown in the figure.
  • the mast 1 carries an arrow which is constituted by a foot part 2 and a / tip part 3 which can slide towards the inside and the outside of the part 2.
  • this foot part 2 can be fixed. rigidly, rotating or as shown articulated by a joint 4 at the top of the mast 1.
  • the alignment of the articulated arrow takes place in a known manner using a cable not shown in the figure which, on the one hand, is fixed to the foot part 2 and, on the other hand, extends via a cable pulley on a tower, towards a winch.
  • the latter no more than the tower, articulated for example on the mat side end of the leg part 2, is shown in the figure.
  • Mast 1 is commonly made of a wire mesh, not shown in the figure.
  • the two parts 1 and 2 of the arrow also are made of a wire mesh which has not been shown for the sake of clarity in the figure.
  • the foot part 2 forms a channel in the form of an inverted U , which is completely open on the lower side.
  • the tip part 3 of the arrow 2,3 forms a box closed laterally from a trellis of approximately triangular cross section, which fits into the aforementioned channel formed by the foot part 2.
  • the carriage 14 is suspended from the foot part 2 and / or the tip part 3 of the arrow 2,3 by means of two sets of rollers which cooperate respectively with a rolling track of the foot part 2 and a track of the tip part 3.
  • the carriage 14 In the boom extension position, the carriage 14 can circulate without obstacle over the entire length of the boom.
  • the transition from one part to the other of the boom takes place uniformly, smoothly, because one set of rollers rolls on the track of one of the parts and the other set of rollers moves in the extension of the bearing surface of the track of the other boom part.
  • the sliding withdrawal and extension of the arrow 2,3 and the movement of the carriage 14 takes place using a single cable consisting of two parts of cable 26 and 27, which are driven by a winch 28.
  • the latter is of a construction known in itself and is therefore constituted as usual by a drum and a drive motor which is connected to it.
  • the winch 28 is / mounted on the mat side end of the foot part 2 of the boom 2,3.
  • the two cable parts 26 and 27 are fixed by / one end, respectively on the tip of the arrow and mast side, to the carriage 14.
  • the two cable parts 26 and 27 can form two separate cables, in which case their other ends are fixed to the winch drum 28. At these ends, the two cable parts 26 and 27 are wound over a certain length in opposite directions on the winch drum 28, so that with the rotation of the drum, a cable part it is rolled up there and the other is rolled out.
  • the two cable parts 26 and 27 can also form a single length which is then wound over a certain distance on the drum of the winch 28.
  • the first cable part 26 extends from the carriage 14, firstly towards the point of the point part 3 of the arrow, passes over a cable pulley 29 mounted at this point and then returns to the mast 1, directly to the winch 28.
  • the second part of / cable 27 extends from the carriage 14, first towards the mast 1, on a cable pulley 30 mounted at the mast side end 1 of the foot part 2 of the arrow, to move away from the mast 1 and pass over a cable pulley 31 which is mounted at the far end of the mast 1, from the leg part 2, returns towards the mast 1 and passing over two cable pulleys 32 mounted at the mast side end of the tip part 3 of the boom, again departs from the mast 1 as far as the far end of the latter from the foot part 2, comes back passing over a cable pulley 33 mounted at this end, towards the mast 1 and finally arrives by passing over a cable pulley 34 mounted at the mast side end / of the foot part 2, to the winch 28.
  • the two parts 2 and -3 of the arrow can be locked relative to each other in several positions using an electrical coupling device 35.
  • the coupling device may for example be constituted by an electromagnetic actuation lock, which is mounted on one of the boom parts and cooperates with openings made in the other boom part.
  • the lock is, for example, mounted at the end remote from the mast 1, from the foot part 2, while the tip part 3 of the boom has several openings for this lock.
  • the openings are located such that in the fully retracted position of the tip part 3, in the fully extended position of this part 3 and in several intermediate positions, the latch of the device 35 can enter and exit from one of the openings of the tip part 3 to couple or disengage the boom parts mutually.
  • the lock of the coupling device 35 like the winch 28, is remotely controlled by the operator of the tower crane.
  • the tip part 3 of the boom can be brought into extension, after having mutually decoupled the two boom parts 2 and 3 using of the cable part 27 and by winding this cable part on the winch drum 28.
  • the cable part 27 pulls the carriage 14 in the direction of mast 1, which is made impossible because. already found at the end of the foot part and can no longer advance due to a stop mounted at this end.
  • the cable part 27, since it is shortened, can therefore only push outwards, the end of the tip part 3 located in the foot part 2.
  • the carriage 14 is first circulated to the point of part 3 by winding the cable part 26. It is obvious that the part of tip 3 is provided at its tip with a stop for retaining the carriage 14. As soon as the carriage 14 meets this stop, we can then, continuing to wind the cable part on the drum of the winch 28 and after having uncoupled each other the arrow parts 2 and 3, slide the tip part 3 of the arrow into the foot part 2.
  • the withdrawal of the boom takes place at the same speed as the movement of the carriage 14, while the exit or extension takes place at half this speed.
  • the carriage 14 In the retracted position as well as in the fully or partially extended position, the carriage 14 can still travel over the entire length of this arrow. No blocking of the carriage is necessary, neither during the extension nor during the withdrawal of the boom.
  • the carriage 14 is retained in either case by the required stop anyway at the end of the boom, while the cable part which ensures the withdrawal or extension, pulls the carriage 14 against this stop.
  • this crane can however be provided with one or more locking mechanisms which prevent the carriage from moving in the direction of the mast on the base of the boom, or from the mAt on the tip of the boom. In this variant, it is not then necessary that during the extension or withdrawal of the boom, the carriage is located at the mast end and respectively at the tip end of the boom.
  • the boom can be brought into extension by retaining the carriage on the foot part by means of a locking mechanism and the boom can also be brought back by retaining this carriage on the tip part by means of a locking mechanism .
  • These blocking mechanisms can be controlled remotely manually and can be of very simple construction. Extension and removal of the boom takes place at the same speed as in the embodiment described above.
  • the crane may include, instead of two blocking mechanisms which hold the carriage in one direction on the foot part or the tip part respectively, one or two blocking mechanisms which can prevent movement of the carriage in both directions of movement .
  • a blocking mechanism can for example be analogous to the aforementioned blocking mechanism 35, the lock of which can be mounted on the carriage 14, while the openings for this lock can be provided in the foot part 2, in the tip part 3 or both in the foot part 2 and in the tip part 3.
  • the tower crane is naturally still equipped in a common way, with a lifting cable which is controlled by a separate winch.
  • This winch can for example be arranged at the bottom of the crane, the lifting cable then extending upwards to pass over a cable pulley mounted at the top of the mast 1 and go towards the carriage where this cable then passes. in the usual way around the cable pulleys, and then around a pulley mounted at the end of the tip part 3 towards a pulley mounted at the other end of this tip part, and finally around this last pulley towards the separated end of the mast 1, of the leg part 2 where this cable is then fixed.
  • the winch for the movement of the cable controlling the withdrawal and extension of the boom and the movement of the carriage does not necessarily have to be mounted on the boom.
  • this winch can also be mounted on the mast or on the frame thereof.
  • the same winch may include several drums coupled or capable of being coupled together, the aforementioned cable then being wound on a first drum, while another drum can move the lifting cable and possibly other drums can order the cable to raise the mast and a cable to adjust the inclination of the boom relative to the mast.
  • the cable pulley at this end for the second part of cable, which can circulate the carriage to / from the mast is not absolutely necessary.
  • the cable portion can extend directly to the winch drum.
  • the telescopic boom can also consist of more than two parts. In the case of three parts, the middle part is to be considered as the aforementioned part of the foot with respect to the tip part, but as the aforementioned tip part with respect to the part fixed to the mast.
EP81200430A 1980-04-18 1981-04-14 Turmdrehkran Expired EP0039963B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT81200430T ATE5871T1 (de) 1980-04-18 1981-04-14 Turmdrehkran.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
BE58514 1980-04-18
BE2/58514A BE882845A (nl) 1980-04-18 1980-04-18 Torenkraan en daarbij gebruikte telescopische giek

Publications (2)

Publication Number Publication Date
EP0039963A1 true EP0039963A1 (de) 1981-11-18
EP0039963B1 EP0039963B1 (de) 1984-01-18

Family

ID=3865503

Family Applications (1)

Application Number Title Priority Date Filing Date
EP81200430A Expired EP0039963B1 (de) 1980-04-18 1981-04-14 Turmdrehkran

Country Status (3)

Country Link
EP (1) EP0039963B1 (de)
AT (1) ATE5871T1 (de)
DE (1) DE3161931D1 (de)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425389A2 (de) * 1989-10-26 1991-05-02 Hexatechnique S.A. Handhabungsgerät und ein mit solch einem Gerät ausgerüstetes Fahrzeug
US8191322B2 (en) * 2007-10-11 2012-06-05 Frank Liestenfeltz Payload mast

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE193294C (de) *
FR360833A (fr) * 1905-12-05 1906-05-04 Niels Anders Hansen Abel Grue pour le levage et la distribution des matériaux de construction et autres matériaux
FR463533A (fr) * 1912-12-18 1914-02-25 Henri Michelot Grue de chantier
FR510029A (fr) * 1919-01-15 1920-11-25 Warren Travell Appareil élévateur et transporteur pour le chargement et le déchargement des navires
US3249236A (en) * 1964-03-25 1966-05-03 Mac Gregor Comarain Sa Transferable guide pulleys for rolling overhead telescopic bridge or gantry crane
FR92605E (fr) * 1963-12-19 1968-12-06 Mac Gregor Comarain Sa Dispositif de chargement et de déchargement sur navires ou analogues et navires équipés de tels dispositifs
DE1812805A1 (de) * 1968-12-05 1970-06-18 Augsburg Nuernberg Ag Zweignie Portalkran mit verschiebbarem waagerechtem Ausleger und Seilzugkatze
DE1966093A1 (de) * 1968-08-30 1971-11-25 Pingon Pierre Joseph Turmdrehkran
FR2111998A1 (de) * 1970-01-22 1972-06-16 Richier Sa
FR2122583A1 (fr) * 1971-01-22 1972-09-01 Linden Alimak Ab Grue de levage dont la fleche se compose de pieces retractables les unes dans les autres
FR2190711A1 (de) * 1972-06-29 1974-02-01 Potain Sa

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE193294C (de) *
FR360833A (fr) * 1905-12-05 1906-05-04 Niels Anders Hansen Abel Grue pour le levage et la distribution des matériaux de construction et autres matériaux
FR463533A (fr) * 1912-12-18 1914-02-25 Henri Michelot Grue de chantier
FR510029A (fr) * 1919-01-15 1920-11-25 Warren Travell Appareil élévateur et transporteur pour le chargement et le déchargement des navires
FR92605E (fr) * 1963-12-19 1968-12-06 Mac Gregor Comarain Sa Dispositif de chargement et de déchargement sur navires ou analogues et navires équipés de tels dispositifs
US3249236A (en) * 1964-03-25 1966-05-03 Mac Gregor Comarain Sa Transferable guide pulleys for rolling overhead telescopic bridge or gantry crane
DE1966093A1 (de) * 1968-08-30 1971-11-25 Pingon Pierre Joseph Turmdrehkran
DE1812805A1 (de) * 1968-12-05 1970-06-18 Augsburg Nuernberg Ag Zweignie Portalkran mit verschiebbarem waagerechtem Ausleger und Seilzugkatze
FR2111998A1 (de) * 1970-01-22 1972-06-16 Richier Sa
FR2122583A1 (fr) * 1971-01-22 1972-09-01 Linden Alimak Ab Grue de levage dont la fleche se compose de pieces retractables les unes dans les autres
FR2190711A1 (de) * 1972-06-29 1974-02-01 Potain Sa

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0425389A2 (de) * 1989-10-26 1991-05-02 Hexatechnique S.A. Handhabungsgerät und ein mit solch einem Gerät ausgerüstetes Fahrzeug
FR2653760A1 (fr) * 1989-10-26 1991-05-03 Hexatechnique Appareil de manutention et vehicule muni d'un tel appareil.
EP0425389A3 (en) * 1989-10-26 1991-12-04 Hexatechnique S.A. Handling apparatus and vehicle equipped with such an apparatus
US8191322B2 (en) * 2007-10-11 2012-06-05 Frank Liestenfeltz Payload mast

Also Published As

Publication number Publication date
EP0039963B1 (de) 1984-01-18
ATE5871T1 (de) 1984-02-15
DE3161931D1 (en) 1984-02-23

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