EP0161437B1 - Grue à câble - Google Patents

Grue à câble Download PDF

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Publication number
EP0161437B1
EP0161437B1 EP85103580A EP85103580A EP0161437B1 EP 0161437 B1 EP0161437 B1 EP 0161437B1 EP 85103580 A EP85103580 A EP 85103580A EP 85103580 A EP85103580 A EP 85103580A EP 0161437 B1 EP0161437 B1 EP 0161437B1
Authority
EP
European Patent Office
Prior art keywords
cable
transfer roller
power transfer
traction cable
travelling gear
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
Application number
EP85103580A
Other languages
German (de)
English (en)
Other versions
EP0161437A2 (fr
EP0161437A3 (en
Inventor
Max Maurer
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.)
Baco Ag Seilbahnen und Aufzuege
Original Assignee
Baco Ag Seilbahnen und Aufzuege
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 Baco Ag Seilbahnen und Aufzuege filed Critical Baco Ag Seilbahnen und Aufzuege
Priority to AT85103580T priority Critical patent/ATE46490T1/de
Publication of EP0161437A2 publication Critical patent/EP0161437A2/fr
Publication of EP0161437A3 publication Critical patent/EP0161437A3/de
Application granted granted Critical
Publication of EP0161437B1 publication Critical patent/EP0161437B1/fr
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
    • B66C21/00—Cable cranes, i.e. comprising hoisting devices running on aerial cable-ways
    • 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

Definitions

  • the invention relates to a cable crane in which a running gear supported on a support cable and movable on castors is connected to a pulling cable and a return cable and the two cables can be driven by a drive station, the pulling cable being guided in the running gear and a load-lifting tackle at its end carries, which can be lowered and pulled up when the undercarriage is stopped with the aid of the pull rope.
  • the cable crane is a transport device that is known in many embodiments. In a simple embodiment, it is composed of a drive station, a support cable on which a running gear is moved on rollers, and a pulling cable, one end of which is connected to the running gear and the other end of which is wound on a winch drum, which in the drive station is arranged.
  • a cable crane it is necessary to arrange the drive station on the mountain side, and in addition the support cable has to be guided with a significant slope to its end on the valley side. With this arrangement it is possible to lift loads on the one hand towards the drive station and on the other hand to lower them towards the valley end.
  • a cable crane is known, in which the pulling cable is guided over two multi-grooved pulleys and then over a single-grooved pulley and is provided with a load attachment harness.
  • the three pulleys are coupled together by a chain drive.
  • a cable drum is attached to the shaft of the single-grooved rope pulley, on which a rolling rope is wound, the end of which ends in the drive station of the rope crane. If the load-lifting tackle is to be lowered, the rope drum and thus the rope sheaves are rotated so that the load-lifting tackle lowers.
  • the chassis is held by a tow rope.
  • This object is achieved according to the invention in that the pulling rope coming from the drive station in the undercarriage is guided with at least one loop on a power transmission roller and then through a pair of feed rollers, the feed rollers being connected to the power transmission roller by a drive device in which the peripheral speed the feed rollers is greater than the peripheral speed of the force transmission roller, and that the force transmission roller is coupled to a reel on which one end of the return cable is wound with the same winding direction, based on the winding direction of the wrap of the pull cable on the force transmission roller.
  • the cable crane shown in FIG. 1 has a drive station 2 set up at the valley end of a suspension cable.
  • the support cable 1 ends on a, mostly collapsible mast 3 and is anchored 4 both on the valley side and held on the mountain side.
  • a suspension 5 is used to reduce the sag of the suspension cable 1.
  • a chassis 6 is supported on rollers 7, which is connected to the end of a traction cable 8.
  • the traction cable 8 is guided over the mountain-side end of the support cable 1 via guide rollers 10 and ends on a motor-driven cable winch in the drive station 2.
  • the end of a return cable 9 is also fastened to the undercarriage 6, which is also attached to a motor-driven cable winch in the drive station 2 ends.
  • a load 11 is attached to the chassis 6 and is towed in the direction of the arrow against the drive station 2. Usually, however, it is desirable to let the suspension cable 1 run so high that the load can be moved as freely as possible. This contributes above all to the fact that the load towing gear can be pulled up to the chassis 6, as will be explained with reference to FIG. 2.
  • Fig. 2 the chassis 6 is partially shown with one of its castors 7 in a spatial representation.
  • the driving roller 7 is supported on the supporting cable 1.
  • a support 12 (shown somewhat distant from its fastening strips 13 in FIG. 2) is fastened to the chassis 6, between whose side plates 15 a shaft 14 is rotatably mounted.
  • a guide bushing 17 is held by means of support arms 16, through which the traction cable 8 is guided.
  • a reel 18, a power transmission roller 20 and a brake disc 21 are fastened on the rotatable shaft 14.
  • One end of the return rope 9 is wound on the reel 18, while the other end is wound on the winch in the drive station 2.
  • the pull rope 8 is guided with at least one loop 22 on the force transmission roller 20.
  • This is designed as a disc with a concave circumferential groove and can be used as a force transmission member if the frictional engagement is sufficiently secured by the wraps 22.
  • a sprocket 23 is attached to the roller 20, which is part of an enveloping drive 24, which is composed of the sprocket 23, a chain sprocket 25 and a chain 26 as an enveloping link.
  • the chain sprocket 25 is operatively connected to a roller 28, between which and a further roller 27 the traction cable 8 is guided.
  • the roller 28 is rotatably supported in a lower housing 29, while the upper roller 27 is mounted in a housing 30 which is guided in vertical guides (not shown) and pressed against the lower roller 28 by spring force (not shown), thereby simultaneously the traction cable 8 is clamped.
  • the traction cable 8 is then guided over a deflection roller 31, then extends through a switching head 32 and ends at the load attachment harness 33, over which some load attachment hooks 34 are arranged.
  • the brake disc 21 is wound by a brake cable 35 in several turns and is fastened at one end to an angle lever 36, the brake cable 35 additionally having a tension spring 37.
  • the other end of the brake cable 35 is attached to one of the side shields 15.
  • the brake lever 36 is actuated from the switch head 32.
  • the lever 38 pivotably mounted on this is connected to the other arm of the angle lever 36 by means of a rope 39.
  • the power transmission roller 20 fastened on the shaft 14 has the task of enabling the pulling rope 8 to be lowered at every stop of the undercarriage 6. If the undercarriage 6 stops, the undercarriage is clamped to the supporting cable 1 by means of clamping jaws (not shown) by means of a hydraulic accumulator (not shown). Now the return cable 9 is unwound from the reel 18 by the drive station 2 (FIG. 1). With the clamping of the undercarriage 6 on the suspension cable 1, the brake cable 35 is also released. By unwinding the return rope 9, the force transmission roller 20 is rotated and with it the roller pair 27, 28 via the enveloping drive 24 the rotation of the power transmission roller 20 pulled the traction rope 8 and thereby lowered the load attachment harness 33.
  • the lowering of the pull cable 8 is therefore no longer dependent on a weight or on the arrangement of the pull cable 8, but is non-positively carried out by the force transmission roller 20. It is essential that the force-fit is taken over. It is essential here that the frictional connection is ensured by the enveloping drive 24, which ensures that the rollers 27, 28 advance slightly.
  • the pull rope 8 is retrieved from the drive station 2. Since the pull rope is under the pull of the load, the reel 18 is also rotated via the force transmission roller 20 and the return rope is thereby wound up again.
  • the rollers 27, 28, which are positively coupled via a pair of sprockets (not shown), are equipped with a freewheel so that they do not hinder the return of the traction cable 8.
  • the brake cable 35 is pulled by actuating the lever 38 and the brake is thus effective.
  • the clamping jaws on the suspension cable 1 are released and the undercarriage 6 can be closed drive to another place, where the lowering of the pull rope 8, the hanging of the load and the lifting of the load takes place in the same way as described.
  • the advancing feed rollers 27, 28 are driven by a chain drive, but a toothed belt drive or a gear transmission could be used instead of the chain drive. It is only essential that the feed rollers 27, 28 advance somewhat relative to the force transmission roller 20 and form a frictional connection on the traction cable 8, by means of which the traction cable 8 is always held non-positively on the force transmission roller 20 when the latter is lowered.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)
  • Flexible Shafts (AREA)
  • Transmission Devices (AREA)
  • Carriers, Traveling Bodies, And Overhead Traveling Cranes (AREA)

Claims (7)

1. Grue à câble, dans laquelle un chariot (6) soutenu sur un câble porteur (1) et mobile sur des galets (7) est relié à un câble de traction (8) et à un câble de rappel (9), les deux câbles (8, 9) étant susceptibles d'être entraînés depuis le poste d'entraînement (2), le câble porteur (8) étant guidé dans le chariot (6) et portant à son extrémité des apparaux d'accrochage de charge (33), qui, à l'arrêt du chariot, sont abaissables et relevables à l'aide du câble de traction, caractérisée en ce que le câble porteur (8) venant du poste d'entraînement est guidé dans le chariot avec au moins une boucle (22) sur un rouleau de transmission de force (20) et immédiatement après par une paire de rouleaux d'avance (27, 28), les rouleaux d'avance étant reliés au rouleau de transmission de force au moyen d'un dispositif de transmission (24) pour lequel la vitesse circonférentielle des rouleaux d'avance (27, 28) est plus élevée que la vitesse circonférentielle du rouleau de transmission de force (20), et en ce que le rouleau de transmission de force est accouplé à un treuil (18) sur lequel une extrémité du câble de rappel (9) est enroulée, dans le même sens par rapport au sens d'enroulement de la boucle du câble de traction (8) sur le rouleau de transmission de force (20).
2. Grue à câble selon la revendication 1, caractérisée en ce que le dispositif d'entraînement est une transmission à enroulement (24), qui est de préférence réalisée sous la forme d'une transmission à chaîne, avec une roue à chaîne (23) reliée au rouleau de transmission de force (20), avec un pignon à chaîne (25) accouplé aux rouleaux d'avance (27, 28) et avec une chaîne (26) servant d'organe d'enveloppement.
3. Grue à câble selon la revendication 1 ou 2, caractérisée en ce que les rouleaux d'avance (27, 28) sont pressés sur le câble de traction (8) par une force élastique.
4. Grue à câble selon la revendication 3, caractérisée en ce que les rouleaux d'avance (27, 28) sont accouplés entre eux par ajustement de forme, par exemple au moyen d'une transmission à roues dentées à un étage.
5. Grue à câble selon la revendication 1, caractérisée en ce que le rouleau de transmission de force (20) est une poulie parabolique avec une gorge périphérique concave.
6. Grue à câble selon l'une quelconque des revendications 1 à 5, caractérisée en ce que le rouleau de transmission de force (20) est rigidement relié à un disque de frein (21) d'un frein à câble, dont le câble de frein (35) enroulé en spires autour du disque de frein est relié à une extrémité au chariot (6) et à l'autre extrémité à un levier (38) d'une tête d'enroulement (32), le frein étant ouvert à l'arrêt du chariot (6) dans le but de descendre et de remonter le câble de traction (8) et étant freiné lors du déplacement du chariot (6).
7. Grue à câble selon la revendication 4, caractérisée en ce que les rouleaux d'avance (27, 28) sont équipés de roues libres devenant efficaces lorsque le câble de traction (8) est relevé.
EP85103580A 1984-04-13 1985-03-26 Grue à câble Expired EP0161437B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT85103580T ATE46490T1 (de) 1984-04-13 1985-03-26 Seilkran.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH1880/84A CH664145A5 (de) 1984-04-13 1984-04-13 Seilkran.
CH1880/84 1984-04-13

Publications (3)

Publication Number Publication Date
EP0161437A2 EP0161437A2 (fr) 1985-11-21
EP0161437A3 EP0161437A3 (en) 1987-01-14
EP0161437B1 true EP0161437B1 (fr) 1989-09-20

Family

ID=4220741

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85103580A Expired EP0161437B1 (fr) 1984-04-13 1985-03-26 Grue à câble

Country Status (4)

Country Link
EP (1) EP0161437B1 (fr)
AT (1) ATE46490T1 (fr)
CH (1) CH664145A5 (fr)
DE (1) DE3573103D1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT387206B (de) * 1986-04-21 1988-12-27 Fallmann Robert Kabelkran
GB2219263A (en) * 1988-04-16 1989-12-06 Gordon Macdonald Mulholland Cable pay-out device in overhead-cable carrying apparatus
EP0640366A1 (fr) * 1993-03-23 1995-03-01 James Ryan Leurre
DE59504818D1 (de) * 1995-05-19 1999-02-25 Josef Werlberger Seilkrananlage und Transportverfahren
DE202011106249U1 (de) 2011-09-30 2013-01-07 Prisys Gmbh Seilkran
SI24141A (sl) 2012-07-04 2014-01-31 Tajfun Planina Proizvodnja Strojev, D.O.O. Gozdarska žičnica in pogonski sklop tovrstne žičnice

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1509716A (en) * 1923-05-22 1924-09-23 William G Daniel Log carrier
US1789472A (en) * 1927-10-04 1931-01-20 James M Meany Aerial hoisting and hauling apparatus of the form commonly known as canyon skidders
US3105597A (en) * 1962-01-08 1963-10-01 Fredrick T Knott Skyline carriage
US3712478A (en) * 1969-04-28 1973-01-23 Skagit Corp Log yarding system and method
CH497337A (de) * 1970-03-17 1970-10-15 Wyssen Jakob Seilbahnkran
AT358771B (de) * 1978-03-13 1980-09-25 Nesler Johann Seilkran

Also Published As

Publication number Publication date
EP0161437A2 (fr) 1985-11-21
EP0161437A3 (en) 1987-01-14
DE3573103D1 (en) 1989-10-26
ATE46490T1 (de) 1989-10-15
CH664145A5 (de) 1988-02-15

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