EP4003894B1 - Installation de tambour à câble pour une grue à câble - Google Patents

Installation de tambour à câble pour une grue à câble Download PDF

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Publication number
EP4003894B1
EP4003894B1 EP19746457.1A EP19746457A EP4003894B1 EP 4003894 B1 EP4003894 B1 EP 4003894B1 EP 19746457 A EP19746457 A EP 19746457A EP 4003894 B1 EP4003894 B1 EP 4003894B1
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EP
European Patent Office
Prior art keywords
auxiliary
rope drum
cable
brake
rope
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.)
Active
Application number
EP19746457.1A
Other languages
German (de)
English (en)
Other versions
EP4003894A1 (fr
Inventor
Peter Verwanger
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.)
Mm Forsttechnik GmbH
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Mm Forsttechnik GmbH
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Filing date
Publication date
Application filed by Mm Forsttechnik GmbH filed Critical Mm Forsttechnik GmbH
Publication of EP4003894A1 publication Critical patent/EP4003894A1/fr
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Publication of EP4003894B1 publication Critical patent/EP4003894B1/fr
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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
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/26—Rope, cable, or chain winding mechanisms; Capstans having several drums or barrels

Definitions

  • the invention relates to a cable drum system for a cable crane, comprising a bearing, a traction cable drum and an auxiliary cable drum, the traction cable drum comprising a traction cable motor connected to a bearing, and the auxiliary cable drum comprising an auxiliary cable motor which is mounted on the traction cable drum and is designed to generate a torque between the traction cable drum and the auxiliary cable drum.
  • Cable cranes are used in forestry to remove felled trees, parts of trees or other loads from impassable terrain and are operated in different ways.
  • a cable crane is operated in 2-cable operation with only two cables.
  • a suspension cable is tensioned, on which a carriage with rollers is slidably mounted, the carriage driven by gravity driving downhill and being pulled uphill again with a traction cable including a load, for example a felled tree.
  • a traction cable including a load, for example a felled tree.
  • the load is transported to the higher end of the suspension rope and when roping downhill to the lower end of the suspension rope.
  • an auxiliary rope that pulls the carriage to the lower end of the suspension rope is used as the third rope.
  • the auxiliary cable is usually guided from the carriage to the lower end of the support cable and when roping uphill from there via a roller to the higher end of the support cable to the cable device arranged there.
  • the traction cable drum is attached to a mast and is rotated by a traction cable motor.
  • the auxiliary cable drum is attached to the traction cable drum by means of an additional motor, so that the additional motor enables the traction cable drum and the auxiliary cable drum to rotate in relation to each other in 3-cable operation.
  • the AT 403 038 B discloses a rope drum installation according to the preamble of independent claim 1.
  • the cable drum system mentioned according to the prior art can also be used in 2-cable operation.
  • the auxiliary rope is not used here and is completely wound up and fixed on the auxiliary rope drum.
  • the auxiliary cable drum rotates with the main cable drum.
  • the object of the invention is to increase the drive power and traction of the cable drum system.
  • a cable drum system for a cable crane comprising a bearing, a traction cable drum and an auxiliary cable drum
  • the traction cable drum comprising a traction cable motor connected to a bearing
  • the auxiliary cable drum comprising an auxiliary cable motor which is mounted on the traction cable drum and is designed to to transmit a torque between the traction cable drum and the auxiliary cable drum
  • the auxiliary cable drum being rotatably mounted relative to the bearing in a first operating state and being non-rotatably connected to the bearing in a second operating state, so that in the second operating state the traction cable drum can be driven by means of the auxiliary cable motor.
  • the traction and performance of the cable drum system can be increased in 2-cable operation without significant additional costs and with minimal structural changes. Even in 3-cable operation, the pulling force of the traction cable drum can be increased briefly to tear the load loose.
  • the invention offers the possibility of retrofitting existing cable drum systems of the prior art in order to achieve the advantages according to the invention for these cable drum systems as well.
  • the requirements for higher traction and performance were met by more powerful motors or smaller rope drum diameters.
  • the solution according to the invention has the advantage that costs and weight can be saved.
  • the solution according to the invention has the advantage that higher rope speeds can be achieved and less stress is exerted on the ropes.
  • a brake can be used, which is, for example, a permanent part of the cable drum system and can lock and release the auxiliary cable drum in a targeted manner.
  • a support structure can be used to manually lock the auxiliary cable drum.
  • the cable drum system includes a brake that is designed to hold the auxiliary cable drum in the second operating state to lock against storage.
  • the brake is released in the first operating state and the brake is applied in the second operating state.
  • the brake can thus be used to lock the auxiliary rope drum in 2-rope operation in order to increase the pulling force of the main rope drum.
  • the brake on the auxiliary rope drum can also be used in 3-rope operation to temporarily increase the pulling force of the main rope drum.
  • 3-rope operation the auxiliary rope on the carriage pulls against the traction rope. The difference between the forces in the traction cable and in the auxiliary cable acts to pull the carriage to the cable crane system. If the traction force of the traction cable drum needs to be increased, the auxiliary cable is spooled out without winding up the traction cable at the same time. This reduces the pre-tension between the traction and auxiliary cable drums.
  • the auxiliary rope motor can now drive the main rope drum in addition to the main rope motor, which causes a higher rope force in the main rope.
  • the brake can also be used to drag in 3-rope operation without first unwinding the auxiliary rope and relieving the tension in the auxiliary rope. As a result, the rope tension in the auxiliary rope is reduced by braking.
  • the brake is designed for grinding operation.
  • the brake is preferably designed as a disc brake, which comprises a brake caliper and a brake caliper carrier, the brake caliper being designed to lock the auxiliary cable drum and the brake caliper carrier supporting the brake caliper with respect to the bearing.
  • the disc brake has the advantage that it can simply act on one of the cheeks, i.e. discs, of the auxiliary cable drum. In principle, the disc brake could also act at other points on the auxiliary drum, or other types of brakes could be used.
  • the brake acts on a cheek of the auxiliary cable drum facing the bearing. This has the advantage that a lower moment acts on the brake caliper carrier than with Solutions in which the brake acts on a side of the auxiliary cable drum facing away from the bearing.
  • the brake is a hydraulic, pneumatic or electric brake.
  • Such brakes have a short reaction time and can apply the braking force required for the inventive solution.
  • the cable drum system comprises a support structure which can be attached to the auxiliary cable drum and by means of which the auxiliary cable drum can be connected in a rotationally fixed manner with respect to the bearing.
  • the support structure can be attached manually to the auxiliary rope drum when changing from 3-rope operation to 2-rope operation.
  • the support structure comprises one or more ropes, chains and/or rods.
  • the cable drum system is mounted on a mast with its bearing.
  • chains can be attached to the auxiliary cable drum, which are attached to the mast in order to lock the auxiliary cable drum in a rotationally fixed manner relative to the mast and thus also relative to the bearing. The same could be achieved with ropes or sticks.
  • the cable drum system also preferably includes a control unit connected to the traction cable motor and to the auxiliary cable motor, which is designed to control the traction cable motor and the auxiliary cable motor in such a way that the two motors generate the required power in a coordinated manner in order to transmit a predetermined torque to the traction cable drum.
  • the control unit thus enables the auxiliary cable motor to be controlled in a targeted manner in order to support or relieve the traction cable motor.
  • the control unit could also have other operating modes. For example, the auxiliary cable motor could only be switched on when the traction cable motor reaches maximum power.
  • the traction cable drum and the auxiliary cable drum are arranged coaxially, since the technically simplest constructive solutions can be achieved in this way.
  • the cable drum system includes a mast on which the bearing is mounted.
  • the storage could be mounted on a wall or other local facility to achieve the benefits of the invention.
  • figure 1 shows a rope drum installation according to the invention.
  • FIG 1 shows a cable drum system 1 for a cable crane.
  • the cable drum system 1 is usually mounted on a lower part of a mast M of the cable crane.
  • the cable crane and the associated cable drum system 1 are usually used in forestry technology, but can also be used in other areas of application.
  • the cable drum system 1 shown comprises a bearing 2, a traction cable drum 3 and an auxiliary cable drum 4.
  • the bearing 2 is usually mounted in a stationary manner, for example on the lower mast part M mentioned or on another structure of the cable crane system.
  • the bearing 2 therefore creates a relationship between the cable drum system 1 and a fixed assembly position, so that the traction cable drum 3 and the auxiliary cable drum 4 can be rotated with respect to the bearing 2 - with the restrictions explained below.
  • the auxiliary cable drum 4 is in turn arranged such that it can rotate with respect to the traction cable drum 3, as explained in detail below.
  • the traction cable drum 3 is rotatably connected to the bearing 2 and is used to wind up and unwind a traction cable, not shown in any more detail, in a work compartment 5 .
  • the traction cable drum 3 includes a traction cable motor 6.
  • the traction cable motor 6 can be a hydraulic motor or an electric motor, for example.
  • the traction cable drum 3 can have a storage compartment 5 ′, which is located on the traction cable drum 3 next to the work compartment 5 .
  • the traction cable motor 6 is connected to the mast M in a rotationally fixed manner at one end.
  • a bearing plate can be provided as storage 2, which is rigidly connected to the traction cable motor 6 and the mast M, for example, is screwed.
  • the auxiliary cable drum 4 is arranged coaxially with the support cable drum 3 and is rotatably mounted relative to it.
  • the auxiliary cable drum 4 is used to pull an auxiliary cable (not shown) into a work compartment 7 up and down.
  • the auxiliary cable drum 4 can have a storage compartment 7 ′, which is located on the auxiliary cable drum 4 next to the work compartment 7 .
  • the auxiliary cable drum 4 In order to rotate the auxiliary cable drum 4 relative to the traction cable drum 3 , the auxiliary cable drum 4 includes an auxiliary cable motor 9 which is mounted on the traction cable drum 3 .
  • the auxiliary cable motor 9 thus makes it possible to transmit torque between the traction cable drum 3 and the auxiliary cable drum 4 .
  • the auxiliary cable motor 9 can also be a hydraulic motor or an electric motor, for example.
  • the cable drum system 1 is thus constructed in such a way that the traction cable drum 3 is limited on one side by the bearing 2 and on the other side by the auxiliary cable drum 4. Since usually only the bearing 2 is fixed in place, the drive of the traction cable motor 6 not only the traction cable drum 3 is driven, but also the auxiliary cable drum 4 when the auxiliary cable motor 9 is at a standstill. This occurs in cases in which the cable drum system 1 is operated in a so-called 2-rope operation (traction cable and supporting cable independent of the cable drum system 1).
  • the traction cable mounted on the traction cable drum 3 and the auxiliary cable mounted on the auxiliary cable drum 4 are to be pulled at different speeds.
  • both the traction cable motor 6 and the auxiliary cable motor 9 are driven. This is referred to as so-called 3-rope operation (hauling rope, auxiliary rope and carrying rope independent of the rope drum system 1).
  • the pull rope and the auxiliary rope are wound up in opposite directions.
  • the cable drum system 1 shown can be operated in two operating states.
  • the auxiliary cable drum 4 In the first operating state, the auxiliary cable drum 4 is rotatably mounted relative to the bearing 2, as a result of which the aforementioned 2-cable operation or 3-cable operation is essentially achieved.
  • the auxiliary rope drum 4 In the second operating state, however, the auxiliary rope drum 4 is connected to the bearing 2 in a rotationally fixed manner, so that the traction rope drum 3 can be driven by means of the auxiliary rope motor 9 in the second operating state.
  • the second operating state thus enables extended 2-cable operation in that the traction cable drum 3 is driven both by the traction cable motor 6 and by the auxiliary cable motor 9 .
  • This is made possible by the fact that not only the bearing 2 is fixed in place, but also the auxiliary rope drum 4.
  • extended 3-cable operation is made possible in the short term, as explained in more detail below.
  • a brake 10 is used, which is designed as a disc brake in the example shown.
  • the brake 10 in this case comprises a brake caliper 11 and a brake caliper carrier 12.
  • the brake caliper 11 can be designed as is known from other areas in the prior art, for example as a brake caliper in vehicle technology.
  • the brake caliper 11 is designed to lock the auxiliary cable drum 4 and can, for example, act on a cheek W of the auxiliary cable drum 4 facing the traction cable drum 3, as is shown in figure 1 is shown. Alternatively, the brake caliper 11 could also act at another point on the auxiliary cable drum 4, for example on a cheek of the auxiliary cable drum 4 facing away from the traction cable drum 3 or on a cheek that separates the working compartment 7 from the storage compartment 7'.
  • the brake caliper carrier 12 connects the brake caliper 11 rigidly to the bearing 2, but does not have to be mounted directly on it.
  • the bearing 2 is rigidly mounted directly on the mast M and, on the other hand, the brake caliper carrier 12 is also rigidly mounted on the mast M at a different location than the bearing 2 .
  • the bearing 2 is designed as part of the housing of the cable drum system 1, it is advantageous, for example, if the brake caliper carrier 12 is also mounted on the housing and thus on the bearing 2.
  • the brake 10 can, for example, be actuated directly on the cable drum system 1, e.g. by a switch or a manually operated valve. Alternatively or additionally, it could also be provided that the brake 10 is integrated into the control of the cable crane system.
  • the auxiliary cable drum 4 is not only locked in relation to the bearing 2 over a longer period of time in order to enable extended 2-cable operation, but also that short-term support in 3-cable operation is achieved .
  • the short-term support in 3-cable operation can be switched on manually by actuating the brake if a person recognizes the need to switch it on.
  • a control device as described below could also be used, which automatically actuates the brake 10, for example, when load peaks are detected on the traction cable, for example by feedback on the traction cable motor 6.
  • the brake 10 can be a hydraulic, pneumatic or electric brake.
  • a support device (not shown in more detail) can also be provided in order to lock the auxiliary cable drum 4 on the bearing plate 2 .
  • the auxiliary cable drum 4 can be fixed to the mast M with chains, so that the auxiliary cable drum 4 can no longer be rotated relative to the mast M and consequently relative to the bearing 2 .
  • the traction or power of the traction cable motor 6 can then in turn be increased.
  • rods or ropes could also be used to lock the auxiliary rope drum 4 in place.
  • the cable drum system 1 can also include a control device that controls the traction cable motor 6 and the auxiliary cable motor 9 .
  • the control device can be used to control the auxiliary cable motor 9 accordingly when the extended 2-cable operation or the short-term extended 3-cable operation is used with the auxiliary cable drum 4 locked.
  • the activation of the auxiliary cable motor 9 by the control unit can be carried out in various ways.
  • the auxiliary cable motor 9 can only be switched on when the traction cable motor 6 has reached its maximum output.
  • the traction cable motor 6 and the auxiliary cable motor 9 could be controlled in parallel by actuating the traction cable motor 6 and the auxiliary cable motor 9 in such a way that the two motors 6, 9 apply the same power with respect to their maximum output in order to transmit a specific torque to the traction cable drum 3 .
  • the brake 10 can also be operated, i.e. released and applied, by the control unit.
  • the rope drum system 1 can switch fully automatically to the extended 2-rope operation or, for a short time, extended 3-rope operation, in that the control unit applies or releases the brake 10 and also controls the traction rope motor 6 and the auxiliary rope motor 9 depending on the power desired on the traction rope drum 3 .

Claims (10)

  1. Installation de tambour à câble (1) pour une grue à câble , comprenant un logement (2), un rambour à câble de traction (3) et un tambour à câble auxiliaire (4), dans laquelle le tambour à câble de traction (3) comprend un moteur de câble de traction (6) relié à un logement (2) et le tambour à câble auxiliaire (4) comprend un moteur de câble auxiliaire (9) monté sur le tambour à câble de traction (3) qui est conçu pour transmettre un couple de rotation entre la tambour à câble de traction (3) et le tambour à câble auxiliaire (4),
    caractérisée en ce que
    le tambour à câble auxiliaire (4) est, dans un premier état de fonctionnement, monté de façon pivotante par rapport au logement (2) et, dans un deuxième état de fonctionnement, relié de façon solidaire en rotation avec le logement (2), de sorte que, dans le deuxième état de fonctionnement, le tambour à câble de traction (3) peut être entraîné au moyen du moteur de câble auxiliaire (9).
  2. Installation de tambour à câble (1) selon la revendication 1, comprenant un frein (10) qui est conçu pour arrêter ou pour freiner le tambour à câble auxiliaire (4) dans le deuxième état de fonctionnement par rapport au logement (2).
  3. Installation de tambour à câble (1) selon la revendication 2, dans laquelle le frein (10) est conçu comme un frein à disque qui comprend un étrier de frein (11) et un support d'étrier de frein (12), lequel étrier de frein (11) est conçu pour arrêter le tambour à câble auxiliaire (4) et le support d'étrier de frein (12) soutient l'étrier de frein (11) par rapport au logement (2).
  4. Installation de tambour à câble (1) selon la revendication 2 ou 3, dans laquelle le frein (10) entre en prise avec une flasque (W) du tambour à câble auxiliaire (4) orientée vers le tambour à câble de traction (3).
  5. Installation de tambour à câble (1) selon une des revendications 2 à 4, dans laquelle le frein (10) est un frein hydraulique, pneumatique ou électrique.
  6. Installation de tambour à câble (1) selon une des revendications 1 à 5, comprenant une structure d'appui pouvant être appliquée au tambour à câble auxiliaire (4), eu moyen de laquelle le tambour à câble auxiliaire (4) peut être relié de façon solidaire en rotation avec le logement (2).
  7. Installation de tambour à câble (1) selon la revendication 6, dans laquelle la structure d'appui comprend un ou plusieurs câbles, chaînes et/ou barres.
  8. Installation de tambour à câble (1) selon une des revendications 1 à 7, comprenant une unité de commande raccordée au moteur de câble de traction (6) et au moteur de câble auxiliaire (9) qui est conçue pour commander le moteur de câble de traction (6) et le moteur de câble auxiliaire (9) de telle sorte que les deux moteurs (6, 9) fournissent une puissance équivalente par rapport à leur puissance maximum pour transmettre un couple de rotation prédéfini au tambour à câble de traction (3).
  9. Installation de tambour à câble (1) selon une des revendications 1 à 8, dans laquelle le tambour à câble de traction (3) et le tambour à câble auxiliaire (4) sont agencés de façon coaxiale.
  10. Installation de tambour à câble (1) selon une des revendications 1 à 9, comprenant un mât (M) sur lequel le logement (2) est monté.
EP19746457.1A 2019-07-25 2019-07-25 Installation de tambour à câble pour une grue à câble Active EP4003894B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP2019/070122 WO2021013362A1 (fr) 2019-07-25 2019-07-25 Installation de tambour à câble pour une grue à câble

Publications (2)

Publication Number Publication Date
EP4003894A1 EP4003894A1 (fr) 2022-06-01
EP4003894B1 true EP4003894B1 (fr) 2023-09-06

Family

ID=67482935

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19746457.1A Active EP4003894B1 (fr) 2019-07-25 2019-07-25 Installation de tambour à câble pour une grue à câble

Country Status (4)

Country Link
EP (1) EP4003894B1 (fr)
JP (1) JP7386314B2 (fr)
CL (1) CL2021003493A1 (fr)
WO (1) WO2021013362A1 (fr)

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT397076B (de) * 1990-05-07 1994-01-25 Fallmann Robert Kabelkran
NO174040C (no) * 1991-10-30 1994-03-09 Igland As Löpekatt for taubaner
AT403038B (de) 1994-05-05 1997-10-27 Fallmann Robert Kabelkran
JP3338952B2 (ja) 1998-08-04 2002-10-28 良三 松本 ウインチ

Also Published As

Publication number Publication date
JP7386314B2 (ja) 2023-11-24
JP2022544025A (ja) 2022-10-17
EP4003894A1 (fr) 2022-06-01
CL2021003493A1 (es) 2022-10-14
WO2021013362A1 (fr) 2021-01-28

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