EP2565144A1 - Treuil de câble - Google Patents

Treuil de câble Download PDF

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Publication number
EP2565144A1
EP2565144A1 EP12178687A EP12178687A EP2565144A1 EP 2565144 A1 EP2565144 A1 EP 2565144A1 EP 12178687 A EP12178687 A EP 12178687A EP 12178687 A EP12178687 A EP 12178687A EP 2565144 A1 EP2565144 A1 EP 2565144A1
Authority
EP
European Patent Office
Prior art keywords
drum
cable
coupling
winch according
brake
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
EP12178687A
Other languages
German (de)
English (en)
Other versions
EP2565144B1 (fr
Inventor
Paul Pfanzelt
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.)
PM Pfanzelt Maschinenbau GmbH
Original Assignee
PM Pfanzelt Maschinenbau 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 PM Pfanzelt Maschinenbau GmbH filed Critical PM Pfanzelt Maschinenbau GmbH
Priority to SI201230008T priority Critical patent/SI2565144T1/sl
Publication of EP2565144A1 publication Critical patent/EP2565144A1/fr
Application granted granted Critical
Publication of EP2565144B1 publication Critical patent/EP2565144B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28Other constructional details
    • B66D1/36Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B66HOISTING; LIFTING; HAULING
    • B66DCAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/02Driving gear
    • B66D1/14Power transmissions between power sources and drums or barrels

Definitions

  • the invention relates to a winch, in particular a forestry winch having a drive shaft, a cable drum for winding a rope, a drum coupling for transmitting the rotational movement of the drive shaft to the cable drum and a drum brake for braking the cable drum.
  • Such a winch is for example from the DE 20 2005 020 694 U1 known.
  • the pull-out is often only possible with greater effort.
  • a cable ejection device has been provided which comprises a driven by a hydraulic motor pulley, to allow in this way a machine pulley extension.
  • the invention is based on the object to realize a mechanical cable discharge, with simpler means.
  • This drive train can be on an additional drive unit for controlling the pulley (eg a hydraulic or electric motor), which would be operated via a further energy source, be dispensed with.
  • an additional drive unit for controlling the pulley eg a hydraulic or electric motor
  • both the drum clutch and the drum brake are hydraulically formed and each have an associated valve for actuation.
  • the drum clutch is preferably opened without pressure and the drum brake is formed without pressure closed.
  • the cable ejection coupling is formed by a hydraulically actuated clutch, in particular a hydraulically actuated and pressure-free open friction clutch.
  • a hydraulic cylinder is provided for actuating the cable ejection coupling, which may in particular have two hydraulic connections, one communicating with a pressure line of the drum brake and the other with a pressure line of the drum coupling.
  • the hydraulic cylinder may have a piston with a first and a second piston surface, wherein the two piston surfaces are different in size.
  • the winch provides for the following three modes of operation: neutral, cable and unwind
  • the drum brake In the neutral position the drum brake is closed, the drum clutch and the rope ejection coupling open. With the "cable pull", the drum brake is open, the drum clutch is closed and the cable ejection coupling is opened. In the unwinding mode, the drum brake and the drum clutch are open while the cable ejection clutch is closed so that the rotational movement of the drive shaft is transmitted to the cable pulley of the cable ejector.
  • the pulley of the cable ejecting device is preferably designed as a friction wheel and acts with at least one, preferably a plurality of pressure rollers together such that the at least one pressure roller, the rope on the drivable Pulley presses.
  • This friction clutch also serves as overload protection, if it should come to a blockage in the cable output.
  • the at least one pressure roller is prestressed with at least one spring element in the direction of the drivable pulley.
  • a cable inlet brake can be provided which ensures a uniform or uniform and tight winding of the rope on the cable drum.
  • the cable ejection device may further provide an input shaft in communication with the drive shaft and an output shaft, and the hydraulic cylinder includes a rotatably mounted piston for actuating the cable exhaust coupling which simultaneously forms the input shaft. In this way, the required components are reduced and costs saved.
  • winch consists essentially of a drive shaft 1, a cable drum 2 for winding a rope 3, a drum coupling 4 for transmitting the rotational movement of the drive shaft 1 to the cable drum 2 and a drum brake 5 for braking the cable drum. 2
  • a cable ejecting device 6 is provided with at least one drivable pulley 60 for unwinding the cable 3.
  • the entire winch is mounted on a frame, not shown, which can be attached to a towing vehicle, such as a forestry vehicle.
  • the drive shaft 1 is connected to the PTO of the towing vehicle.
  • a gear 7, in particular a worm gear for adjusting the rotational speed of the PTO shaft on the useful for winding the rope on the cable drum 2 rotational speed.
  • a hydraulic block 8 is further provided, which is connected via a pressure line 9 with the drum coupling 4 and a pressure line 10 with the drum brake 5 for controlling the same in hydraulic operative connection.
  • Fig. 2 the drivable pulley 60 of the cable ejecting device 6 is shown in more detail.
  • the cable 3 passes over the pulley 60, wherein the arrow 11 points in the direction of the cable drum 2.
  • the pulley 60 is formed as a friction wheel and cooperates with pressure rollers 61 such that the cable 3 is pressed by the pressure rollers 61 on the pulley 60.
  • the pressure rollers 61 are prestressed in the direction of the pulley 60 with the aid of a spring element 65 designed as a spring assembly.
  • the pulley 60 can be driven in the direction of the arrow 12 via a drive train described in more detail below, as a result of which the cable 3 is pulled off the roller and ejected in the direction of the arrow 13.
  • a cable retraction brake 14 can be seen, which comprises a pressure roller 140 movable in the direction of the double arrow 142 and a brake pad 141.
  • the pressure roller 140 is driven, for example via a hydraulic cylinder, not shown, and presses the cable during winding of the rope against the brake pad 141.
  • the cable 3 is held taut during winding, so that a uniform tight winding the rope is possible.
  • the wear of the cable 3 can be kept in a negligible order of magnitude.
  • this drive train essentially comprises the gear 7, a cable ejection coupling 62, and two transmission means 63, 64 designed, for example, as chains, toothed belts or toothed wheels.
  • the cable ejector coupling 62 is shown in its open or closed position. It has an input shaft 621 which communicates with the drive shaft via the transmission means 63 and the transmission 7 and provides an output shaft 622 which is drivingly connected to the transmission means 64 with the pulley 60. Furthermore, the cable ejection coupling 62 comprises a hydraulic cylinder 624, which has a piston 625 with a first piston surface 626 and a second piston surface 627. As can be seen from the drawing, the first piston surface 626 is smaller than the second piston surface 627 is formed. Furthermore, the hydraulic cylinder 624 has two hydraulic connections B, K, the hydraulic connection B communicating via the pressure line 10 with the drum brake 5 and the hydraulic connection K via the pressure line 9 with the drum coupling 4.
  • the cable ejection coupling is also in the in Fig. 3 brought open position shown when applied to both hydraulic connections B, K, the same pressure.
  • the rotatably mounted piston 625 transmits the transmitted via the transmission means 63 rotational movement only in the closed, in Fig. 4 darg Horen position on the output shaft 622 by the piston 625 is in frictional contact with the friction lining 628.
  • the hydraulic block 8 essentially comprises two valves 80, 81, a main valve 82, an oil reservoir 83, a hydraulic pump 84, a pressure limiting valve 85 and a pressure accumulator 86.
  • position of the main valve 62 is the hydraulic block in the neutral position.
  • the pressure at the two valves 80, 81 is at.
  • the pressure to the drum brake 5 or drum clutch 4 and the cable ejector 62 is forwarded.
  • the drum brake 5 In the neutral position, the drum brake 5 is closed, wherein the drum brake is designed as a non-pressure-closed drum brake, so that therefore no pressure is applied in the pressure line 9.
  • the drum clutch 4, however, is open, which is designed as a depressibly open cable drum brake, so that even in the line 10 no pressure is applied.
  • the hydraulic circuit diagram according to Fig. 5 reflects exactly this neutral position, in which the cable ejection coupling in its open position according to Fig. 3 located.
  • the brake is opened by the valves 81 in the Fig. 5 be switched so that the pressure line 10 is under pressure.
  • the drum clutch 4 is also closed by the valve 80 is switched, so that thus the pressure line 9 is under pressure.
  • the Seilaus contacterkupplung 62 is still held in its open position, since the larger piston surface 627 generates a greater force toward the open position, as caused by the smaller piston surface 626 counterforce.
  • the drum brake 5 must be opened by the pressure line 10 is pressurized.
  • the drum clutch 4 must be open, which is achieved in that the pressure line 9 is depressurized.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Braking Arrangements (AREA)
  • Hydraulic Clutches, Magnetic Clutches, Fluid Clutches, And Fluid Joints (AREA)
EP12178687.5A 2011-08-31 2012-07-31 Treuil de câble Active EP2565144B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SI201230008T SI2565144T1 (sl) 2011-08-31 2012-07-31 Vitel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE202011051167U DE202011051167U1 (de) 2011-08-31 2011-08-31 Seilwinde

Publications (2)

Publication Number Publication Date
EP2565144A1 true EP2565144A1 (fr) 2013-03-06
EP2565144B1 EP2565144B1 (fr) 2013-09-11

Family

ID=45471421

Family Applications (1)

Application Number Title Priority Date Filing Date
EP12178687.5A Active EP2565144B1 (fr) 2011-08-31 2012-07-31 Treuil de câble

Country Status (3)

Country Link
EP (1) EP2565144B1 (fr)
DE (1) DE202011051167U1 (fr)
SI (1) SI2565144T1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696412A (zh) * 2013-12-31 2014-04-02 泰安市新创工程机械有限公司 一种强夯机用起升机构
EP3093264A1 (fr) 2015-05-09 2016-11-16 Pisek - Vitli Krpan, d.o.o. Système mécanico-hydraulique avec un régulateur de pression pour maintenir constante la puissance de traction d'un treuil
EP3093265A1 (fr) 2015-05-09 2016-11-16 Pisek - Vitli Krpan, d.o.o. Système mécanico-hydraulique avec un dispositif de securite pour arreter l'entrainement d'un treuil

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104495668A (zh) * 2014-11-13 2015-04-08 安徽恒源煤电股份有限公司钱营孜煤矿 一种用于煤矿绞车的自动排绳装置
DE102020125562A1 (de) * 2020-09-30 2022-03-31 Suffel Fördertechnik GmbH & Co. KG. Forstseilwinde

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936097A1 (de) * 1969-07-16 1971-01-28 Rotzler Kg Maschf Ernst Seilwinde
US5388781A (en) * 1991-01-30 1995-02-14 Sauber; Charles J. Cable pulling and reeling apparatus having anti-spill device and method
DE202005020694U1 (de) 2005-04-08 2006-06-22 A. Ritter u. Söhne, Maschinenfabrik und Landmaschinen GmbH & Co KG Seilauswurf- und Seileinlaufbremsvorrichtung

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1936097A1 (de) * 1969-07-16 1971-01-28 Rotzler Kg Maschf Ernst Seilwinde
US5388781A (en) * 1991-01-30 1995-02-14 Sauber; Charles J. Cable pulling and reeling apparatus having anti-spill device and method
DE202005020694U1 (de) 2005-04-08 2006-06-22 A. Ritter u. Söhne, Maschinenfabrik und Landmaschinen GmbH & Co KG Seilauswurf- und Seileinlaufbremsvorrichtung

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103696412A (zh) * 2013-12-31 2014-04-02 泰安市新创工程机械有限公司 一种强夯机用起升机构
EP3093264A1 (fr) 2015-05-09 2016-11-16 Pisek - Vitli Krpan, d.o.o. Système mécanico-hydraulique avec un régulateur de pression pour maintenir constante la puissance de traction d'un treuil
EP3093265A1 (fr) 2015-05-09 2016-11-16 Pisek - Vitli Krpan, d.o.o. Système mécanico-hydraulique avec un dispositif de securite pour arreter l'entrainement d'un treuil

Also Published As

Publication number Publication date
EP2565144B1 (fr) 2013-09-11
DE202011051167U1 (de) 2011-12-08
SI2565144T1 (sl) 2013-11-29

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