EP4003894A1 - Installation de tambour à câble pour une grue à câble - Google Patents

Installation de tambour à câble pour une grue à câble

Info

Publication number
EP4003894A1
EP4003894A1 EP19746457.1A EP19746457A EP4003894A1 EP 4003894 A1 EP4003894 A1 EP 4003894A1 EP 19746457 A EP19746457 A EP 19746457A EP 4003894 A1 EP4003894 A1 EP 4003894A1
Authority
EP
European Patent Office
Prior art keywords
cable drum
auxiliary
cable
rope
drum
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
EP19746457.1A
Other languages
German (de)
English (en)
Other versions
EP4003894B1 (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
Original Assignee
Mm Forsttechnik 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 Mm Forsttechnik GmbH filed Critical Mm Forsttechnik GmbH
Publication of EP4003894A1 publication Critical patent/EP4003894A1/fr
Application granted granted Critical
Publication of EP4003894B1 publication Critical patent/EP4003894B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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 mounting, a pulling cable drum and an auxiliary cable drum, the pulling cable drum comprising a pulling cable motor connected to a mounting, and the auxiliary cable drum comprising an auxiliary cable motor mounted on the pulling cable drum, which is designed to have a
  • rope cranes are used to remove felled trees, parts of trees or other loads from impassable terrain and are operated in different modes of operation.
  • a rope crane is operated in 2-rope operation with only two ropes.
  • a suspension cable is tensioned on which a carriage with rollers is slidably mounted, the carriage being driven downhill by gravity and being pulled uphill again with a pulling rope including a load, for example a felled tree.
  • a load for example a felled tree.
  • 3-rope operation an auxiliary rope pulling the carriage to the lower end of the carrying rope is used as the third rope.
  • the auxiliary rope is usually guided from the carriage to the lower end of the supporting rope and, when roping uphill, from there via a roller to the higher end of the supporting rope to the rope device located there.
  • Rope drum system with a pull rope drum and a return rope drum i.e.
  • Auxiliary rope drum to be provided, as described for example in AT 403 038 B.
  • the cable drum is attached to a mast and is set in rotation with a cable motor.
  • the auxiliary cable drum is attached to the cable drum by means of a further motor, so that the additional motor enables the cable drum and the auxiliary cable drum to rotate in relation to one another in 3-cable operation.
  • the above-mentioned cable drum system according to the prior art can also be used in 2-cable operation.
  • the auxiliary rope is not in use here and is completely coiled and fixed on the auxiliary rope drum.
  • the auxiliary cable drum rotates with the
  • the object of the invention is to increase the drive power and pulling force of the cable drum system.
  • a cable drum system for a cable crane comprising a bearing, a pulling cable drum and an auxiliary cable drum, the pulling cable drum comprising a pulling cable motor connected to a mounting and the auxiliary cable drum comprising an auxiliary cable motor mounted on the pulling cable drum, which is designed to to transmit a torque between the pulling cable drum and the auxiliary cable drum, the auxiliary cable drum being rotatably mounted in a first operating state relative to the bearing and being connected to the bearing in a rotationally fixed manner in a second operating state, so that in the second operating state the pulling rope drum is connected to the
  • Auxiliary rope motor is drivable.
  • the tensile force and performance of the cable drum system can be increased in 2-rope operation without significant additional costs and with minimal structural design
  • the solution according to the invention has the advantage that costs and weight can be saved. Compared to the use of smaller screen drum diameters, 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 a permanent part of the
  • Cable drum system is and the auxiliary cable drum can specifically lock and release again.
  • a support structure can be used to manually lock the auxiliary rope drum.
  • the cable drum system comprises a brake which is designed to hold the auxiliary cable drum in the second operating state to lock against the storage. In the first operating state the brake is released and in the second operating state the brake is applied.
  • 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 pulling rope drum.
  • the brake on the auxiliary cable drum can, however, also be used in 3-cable operation to briefly increase the pulling force of the pulling cable drum.
  • 3-rope operation the auxiliary rope on the carriage pulls against the pull rope.
  • the rope crane system is the difference between the forces in the pull rope and in the auxiliary rope. If the pulling force of the pulling cable drum needs to be increased, the auxiliary rope is unwound without winding the pulling rope at the same time. This relieves the tension between the pulling drum and the auxiliary rope drum.
  • the auxiliary cable motor can now drive the pulling cable drum in addition to the pulling cable motor, which causes a higher rope force in the pulling cable.
  • the auxiliary rope is also gradually tensioned again.
  • the brake is released again so that the auxiliary rope can be unwound further.
  • the brake can also be used in a dragging manner without first unwinding the auxiliary rope and relieving the tension in the auxiliary rope. This reduces the rope tension in the auxiliary rope due to the 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 easily grip one of the cheeks, i.e. discs, of the auxiliary cable drum.
  • the disc brake could also engage at other points on the auxiliary drum, or other types of brakes could be used.
  • the brake is designed as a disc brake, it is preferred if the brake engages on a cheek of the auxiliary cable drum facing the bearing. This has the advantage that a lower torque acts on the brake caliper carrier than at Solutions in which the brake is on a cheek facing away from the storage
  • 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 one on the
  • Auxiliary rope drum attachable support structure by means of which the auxiliary rope drum can be connected non-rotatably with respect to the bearing.
  • the support structure can, for example, be manually attached to the auxiliary rope drum when changing from 3-rope operation to 2-rope operation.
  • a short-term locking of the auxiliary rope drum in 3-rope operation is usually not possible, since the attachment of the support structure usually takes too long for this purpose.
  • the support structure comprises one or more ropes, chains and / or rods.
  • the cable drum system with its bearing is mounted on a mast.
  • chains can be attached to the
  • Auxiliary rope drum are attached, which are attached to the mast to the
  • Auxiliary rope drum to be locked against rotation with respect to the mast and thus also with respect to the bearing. The same could be achieved with ropes or sticks.
  • the cable drum system preferably comprises a control unit connected to the pull cable motor and the auxiliary cable motor, which is designed to control the pull cable motor and the auxiliary cable motor in such a way that the two motors match the required power to transmit a predetermined torque to the pull cable drum.
  • the control unit thus enables the auxiliary rope motor to be controlled in a targeted manner in order to support or relieve the pulling rope motor.
  • the control unit could also have other operating modes. For example, the auxiliary rope motor could only be switched on when the pull rope motor reaches maximum power.
  • the cable drum system comprises a mast on which the bearing is mounted.
  • the bearing could also be mounted on a wall or other local facility in order to achieve the advantages of the invention.
  • Figure 1 shows a cable drum system according to the invention.
  • Figure 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 forest technology, but can also be used in other areas of application.
  • the cable drum system 1 shown comprises a bearing 2, a pulling cable drum 3 and an auxiliary cable drum 4.
  • the bearing 2 is usually fixedly mounted, for example on the mast lower part M mentioned or on another structure of the cable crane system.
  • the storage 2 therefore creates a relationship between the cable drum system 1 and a stationary one
  • the auxiliary cable drum 4 is in turn arranged to be rotatable with respect to the pull cable drum 3, as explained in detail below.
  • the pull rope drum 3 is rotatably connected to the bearing 2 and is used to wind up and unwind a pull rope (not shown) in a work compartment 5.
  • the pull cable drum 3 comprises a
  • the pull-rope motor 6 can for example be a hydraulic motor or an electric motor. Furthermore, the pull cable drum 3 can have a storage compartment 5 ′, which is located on the pull cable drum 3 next to the work compartment 5.
  • the pulling cable motor 6 is connected to the mast M in a rotationally fixed manner at one end.
  • a bearing plate can be provided as a bearing 2, which is rigidly connected to the cable motor 6 and the mast M, for example is screwed.
  • the auxiliary cable drum 4 is arranged coaxially to the suspension cable drum 3 and is rotatably mounted relative to this.
  • the auxiliary rope drum 4 is used to provide an auxiliary rope (not shown) in FIG a work compartment 7 up and down. Furthermore, the auxiliary cable drum 4 can be
  • the auxiliary cable drum 4 In order to rotate the auxiliary cable drum 4 with respect to the pulling cable drum 3, the auxiliary cable drum 4 comprises an auxiliary cable motor 9 which is mounted on the pulling cable drum 3.
  • the auxiliary cable motor 9 thus makes it possible to transmit a torque between the traction cable drum 3 and the auxiliary cable drum 4.
  • the auxiliary rope motor 9 can also be, for example, a hydraulic motor or an electric motor.
  • the cable drum system 1 is thus constructed in such a way that the pull cable drum 3 is delimited on one side by the bearing 2 and on the other side by the auxiliary cable drum 4. Since, as a rule, only the bearing 2 is stationary, the drive of the pulling cable motor 6 not only the cable drum 3 is driven, but also the auxiliary cable drum 4 when the auxiliary cable motor 9 comes to a standstill. This occurs in cases in which the cable drum system 1 is in a so-called 2-cable operation (cable and from the
  • Cable drum system 1 independent suspension cable
  • the pull rope mounted on the pull rope drum 3 and the auxiliary rope mounted on the auxiliary rope drum 4 are to be pulled at different speeds.
  • both the pull cord motor 6 and the auxiliary cord motor 9 are driven. This is referred to as so-called 3-rope operation (traction rope, auxiliary rope and supporting rope independent of the rope drum system 1).
  • the pull rope and the auxiliary rope are wound 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 with respect to the bearing 2, whereby the aforementioned 2-cable operation or the 3-cable operation is essentially achieved.
  • the auxiliary cable drum 4 In the second operating state, however, the auxiliary cable drum 4 is non-rotatably connected to the bearing 2, so that in the second operating state the
  • Pulling rope drum 3 can be driven by means of the auxiliary rope motor 9.
  • the second operating state thus enables an extended 2-rope operation in that the pull-rope drum 3 is driven by both the pull-rope motor 6 and the auxiliary-rope motor 9. This is made possible by the fact that not only the bearing 2 is now stationary, but also the auxiliary cable drum 4. Furthermore, an extended 3-cable operation is made possible for a short time, as explained in more detail below.
  • a brake 10 is used according to FIG. 1, which is designed as a disk brake in the example shown.
  • the brake 10 here comprises a brake caliper 11 and a
  • Brake caliper carrier 12 The brake caliper 11 can be designed as known in the prior art from other areas, 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 this purpose, for example, engage on a cheek W of the auxiliary cable drum 4 facing the pull cable drum 3, as shown in FIG.
  • the brake caliper 11 could also engage at a different point on the auxiliary cable drum 4, for example at one of the
  • the rope drum 3 facing away from the cheek of the auxiliary rope drum 4 or on a cheek that separates the work compartment 7 from the storage compartment 7.
  • the brake caliper carrier 12 rigidly connects the brake caliper 11 to the mounting 2, but does not have to be mounted directly on it.
  • the mounting 2 is directly rigidly mounted on the mast M and, on the other hand, the brake caliper support 12 is also rigidly mounted on a different location than the mounting 2 on the mast M.
  • 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, for example by means of 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 ease of use of the brake 10 can provide that the
  • Auxiliary rope drum 4 is not only locked over a longer period of time with respect to the storage 2 in order to enable the extended 2-rope operation, but also that a short-term support in 3-rope operation is achieved.
  • the short-term support in 3-rope operation can on the one hand be switched on manually by pressing the brake if a person recognizes the need to switch on.
  • a control device as described below, could also be used to control the brake 10
  • the brake 10 can be a hydraulic, pneumatic or electric brake.
  • a support device (not shown further) 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 with respect to the mast M or, consequently, with respect to the bearing 2.
  • the pulling force or power of the pulling rope motor 6 can 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 comprise a control device which controls the pull cable motor 6 and the auxiliary cable motor 9.
  • the control device can serve to control the auxiliary rope motor 9 accordingly if the extended 2-rope operation or the briefly extended 3-rope operation is used with the auxiliary rope drum 4 locked.
  • the control of the auxiliary rope motor 9 by the control unit can be carried out in various ways.
  • the auxiliary rope motor 9 can only be switched on when the pull rope motor 6 reaches its maximum output.
  • the pull cable motor 6 and the auxiliary cable motor 9 could be controlled simultaneously by controlling the pull cable motor 6 and the auxiliary cable motor 9 in such a way that the two motors 6, 9 generate the same amount of power in relation to their maximum output in order to transmit a certain torque to the pulling cable drum 3 .
  • the brake 10 can also be operated, i.e. released and applied, by the control unit.
  • the cable drum system 1 can switch fully automatically to the extended 2-cable operation or briefly extended 3-cable operation by the control unit pulling or releasing the brake 10 and also the pulling cable motor 6 and the
  • auxiliary rope motor 9 Controls auxiliary rope motor 9 as a function of the power desired on the pull rope drum 3.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Jib Cranes (AREA)
  • Storage Of Web-Like Or Filamentary Materials (AREA)

Abstract

L'invention concerne une installation de tambour à câble (1) pour une grue à câble, comprenant un support (2), un tambour à câble de traction (3) et un tambour à câble auxiliaire (4), le tambour à câble de traction (3) comprenant un moteur (6) de câble de traction relié à un support (2) et le tambour à câble auxiliaire (4) comprenant un moteur (9) de câble auxiliaire qui est monté sur le tambour à câble de traction (3) et qui est conçu pour transmettre un couple entre le tambour à câble de traction (3) et le tambour à câble auxiliaire (4), le tambour à câble auxiliaire (4), dans un premier état de fonctionnement, étant monté en rotation par rapport au support (2) et, dans un deuxième état de fonctionnement, étant relié de manière solidaire en rotation au support (2), de sorte que, dans le deuxième état de fonctionnement, le tambour à câble de traction (3) peut être entraîné au moyen du moteur (9) de câble auxiliaire.
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 true EP4003894A1 (fr) 2022-06-01
EP4003894B1 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 (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4058295A (en) * 1975-10-10 1977-11-15 Lantec Industries, Ltd. Small, variable-speed yarder
JPS6072484U (ja) * 1983-10-21 1985-05-22 株式会社　多田野鉄工所 自走式クレ−ンのウインチ装置
AT397076B (de) * 1990-05-07 1994-01-25 Fallmann Robert Kabelkran
JPH0514087U (ja) * 1991-08-09 1993-02-23 小松メツク株式会社 ウインチ装置
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
CL2021003493A1 (es) 2022-10-14
WO2021013362A1 (fr) 2021-01-28
EP4003894B1 (fr) 2023-09-06
JP2022544025A (ja) 2022-10-17
JP7386314B2 (ja) 2023-11-24

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