EP2285723B1 - Dispositif hydraulique pour conduire et guider un élément de halage longitudinal, en particulier une poulie de treuil forestier - Google Patents

Dispositif hydraulique pour conduire et guider un élément de halage longitudinal, en particulier une poulie de treuil forestier Download PDF

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Publication number
EP2285723B1
EP2285723B1 EP09758637.4A EP09758637A EP2285723B1 EP 2285723 B1 EP2285723 B1 EP 2285723B1 EP 09758637 A EP09758637 A EP 09758637A EP 2285723 B1 EP2285723 B1 EP 2285723B1
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EP
European Patent Office
Prior art keywords
casing
driving member
rope
hydraulic
hydraulic motor
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
EP09758637.4A
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German (de)
English (en)
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EP2285723A1 (fr
Inventor
Iztok Span
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.)
Tajfun Planina Proizvodnja Strojev doo
Original Assignee
Tajfun Planina Proizvodnja Strojev doo
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Priority claimed from SI200800144A external-priority patent/SI22797A/sl
Application filed by Tajfun Planina Proizvodnja Strojev doo filed Critical Tajfun Planina Proizvodnja Strojev doo
Publication of EP2285723A1 publication Critical patent/EP2285723A1/fr
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Publication of EP2285723B1 publication Critical patent/EP2285723B1/fr
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Classifications

    • 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
    • B66D1/28—Other constructional details
    • B66D1/36—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D2700/00—Capstans, winches or hoists
    • B66D2700/01—Winches, capstans or pivots
    • B66D2700/0108—Winches, capstans or pivots with devices for paying out or automatically tightening the cable

Definitions

  • the invention refers to performing operations and transporting, especially to driving assemblies of winches and hoisting devices, forestry winches or similar mainly in a horizontal direction operating devices, and in particular to construction details of such devices.
  • such an invention also belongs to elements of machines and transmissions, in particular to rope pulleys, belt pulleys and chain wheels.
  • the aim of the invention is to create a hydraulically powered driving and guiding assembly, namely a rope pulley or a belt pulley or a chain wheel, in particular a hydraulically powered rope pulley adapted for unwinding the rope from a forestry winch drum, by means of which efficiency of unwinding the rope or similar longitudinal towing member from corresponding winch drum should be improved and simultaneously also looseness of the rope due to unwinding the drum could be eliminated.
  • At least heavy duty winches are furnished with a hydraulic circuit comprising a hydraulic power unit located either on the tractor or even on the winch itself. Consequently, at least drums of heavy-duty winches may comprise an essential amount of a relatively thick rope wound thereon, which then results in essential inertia, so that unwinding of the rope from such drum upon releasing the brake is extremely difficult, so that an auxiliary pulley is foreseen, which is hydraulically powered.
  • Such pulley is placed on a shaft, which is essentially in a horizontal position embedded within a casing, which is allowed to be pivoted around its vertical axis.
  • a hydraulic motor is mounted on said casing and protrudes away from said casing, so that the width of such powered pulley assembly in the area of the axis of rotation is extremely high.
  • Such extreme width of the pulley together with corresponding motor may often hinder operation of the winch in situ, and also transport of the winch as such by simultaneously influencing the appearance of the whole device.
  • a flexible longitudinal towing member should be understood to mean any flexible and essentially linearly extending bearing member, which is capable for transmission of forces in at least one axial direction thereof, wherein the group of such members includes in particular ropes, including metallic wire ropes, belts, including flat belts, V-belts or otherwise profiled belts, as well as chains, including link chains and stud i.e. Gall's chains.
  • a hydraulic driving and guiding assembly of a longitudinal towing member should be understood to mean a hydraulically powered assembly for driving each of the aforementioned longitudinal towing members, by which the phrase “Hydraulic media” means any liquid or gaseous substance, which is capable to transform accumulated pressure energy into mechanical energy, in particular into rotation of said driving member.
  • US 3,843,094 discloses a traction device comprising a drum and a pinch roller. The roller and drum rotate together and drive the cape between the two.
  • a device for unwinding a rope from the winch drum is described in DE 20 2005 020 694 U1 .
  • Such device comprises a pulley, which is powered by means of a hydraulic motor and the rope intended to be unwound from said drum is extended via such pulley.
  • the pulley is placed on a shaft, which is embedded within appropriate casing and is interconnected with a shaft of a hydraulic motor, by which the stator i.e. the casing of said motor is co-axially attached to the casing of the pulley.
  • a rotor of said hydraulic motor is mounted on a shaft, which is either connected to the pulley shaft, or may also protrude within the pulley casing in order to enable mounting the pulley directly onto the hydraulic motor shaft.
  • the pulley casing and the surmounted hydraulic motor are in each case huge, which is deemed to be one of the main deficiencies of such devices.
  • the pulley is intended to assist unwinding of the rope from the winch drum, and that the length of the rope wound onto such winch drum may really be essential.
  • the drum as such must be sufficiently rigid, so that the moment of inertia of the drum as such is also essential.
  • an essential amount of the rope having an essential weight is then wound onto such drum, so that inertia of the drum together with the rope wound thereon Is still essentially larger.
  • Each of said rollers is freely rotatable embedded in appropriate bearing member, which is eccentrically pivotable embedded on the pulley casing and pressed towards the surface of the pulley by means of a spring.
  • a desired tension of the spring and consequently of the pressing force acting towards the surface of the pulley may be adjusted by means of a corresponding screw. Thanks to such measure, the friction between the rope and the pulley may actually be increased in certain extent, while simultaneously another problem arises, which is even worse.
  • the drum As soon as thanks to said pulley the drum has started to rotate and the rope has started unwinding there-from, the drum remains rotating around its axis.
  • the present invention refers to a hydraulic driving and guiding assembly of a longitudinal towing member, comprising at least one main driving member, which is rotatable around its geometric axis by means of a hydraulic motor and is in the area of bearings or similar bearing members embedded within appropriate casing.
  • An auxiliary driving member is foreseen on said casing, which is situated adjacent to the main driving member and may rotate around the axis extending parallel with respect to the axis of the main driving member so that the rope or a similar flexible towing means extends between said driving members, wherein a gear is attached to the main driving member and another gear is attached to the auxiliary driving member, by which said gears are adapted to be engaged with each other.
  • the stationary part of the hydraulic motor is an integral part of the casing. Besides, said the stationary part of the hydraulic motor protrudes axially into the casing and is furnished with outside the casing situated hydraulic connections, and is moreover surrounded with a rotatable part of said hydraulic motor, which is embedded within the casing by means of bearings and to which on its circumference a driving member is attached. Said rotatable part of the hydraulic motor is embedded within said casing by means of two bearings, which are situated axially apart from each other, whilst the driving member is situated on said rotatable part between said bearings.
  • the driving member is selected from the group consisting of rope pulleys, belt pulleys and chain wheels.
  • a pulley is used as a main driving member 1 of an assembly for driving and guiding of a longitudinal towing member, namely of a steel rope 5 ( Fig. 2 ), which is in the shown embodiment also guided by an auxiliary guiding member 6, wherein said pulley is allowed to rotate around its at least approximately vertical axis 10 and is embedded within a casing 2, which is pivotally around a vertical axis 20 attached to the housing of a forestry winch, which is not shown in the drawing.
  • a hydraulic motor 3 comprising hydraulic connections 30', 30" is embedded within said casing 2 in such a manner that its centrally arranged stationary part 32 is on the one hand firmly interconnected with said casing 2 and on the other hand surrounded with a rotatable part 31, which is driven by means of hydraulic media and is by means of bearings 41, 42 embedded within the casing 2.
  • the driving member 1 is placed on the circumference of said rotatable part 31 of the hydraulic motor 3 and is interconnected therewith in any reasonable manner, which enables transmission of torque and that any the rotatable part 31 of the motor 3 is prevented from being displaced relatively to the driving member 1 in the circumferential direction.
  • auxiliary driving member 7 ( Fig. 3 ) arranged adjacent to the driving member 1, so that the axis of the member 1 and the axis of the member 7 extend parallel to each other, while the rope 5 is extending between both driving members 1, 7.
  • Said auxiliary driving member 7 is driven by the firstly mentioned driving member 1.
  • a gear 15 is coaxially connected to the driving member 1
  • a gear 75 is coaxially connected to the auxiliary driving member 7, by which said gears 15, 17 are adapted for mutual cooperation. Diameters of said gears 15, 75 are correspondingly adapted to diameters of said driving members 1, 7, so that the velocity on the circumference of the driving members 1, 7 is equalized and cooperation thereof with the rope 5 extends without sliding.
  • the distance between the axis of the driving members is adjustable and may e.g. be pre-determined.
  • said auxiliary member 7 with its axis is embedded on a bearing member 71 on the casing 2, and may be displaced towards the driving member 1 or apart from it by means of a threaded bush 72 supported by a spring 73, whereupon said driving member 7 is fixed in each desired position by means of a nut 74.
  • such winch comprises a not shown winding drum adapted for winding or unwinding the rope 5.
  • Such drum is normally driven via appropriate transmission gear, to which a driving shaft of a tractor or similar working machine.
  • the drum comprises a clutch and a brake in an alternating operation relationship, which means that when the clutch is activated, the brake is deactivated, by which torque is transmitted from the shaft of the working machine to the drum, which is correspondingly rotated in each desired direction of winding or unwinding the rope 5.
  • the clutch is deactivated and the brake is activated, by which the drum is prevented from being further rotated.
  • Operation of the clutch and brake is controlled by means of a hydraulic assembly 8 comprising hydraulic cylinders 81, 82 intended to control operation of the brake and clutch.
  • the hydraulic motor 3 intended to drive a pulley according to the invention is integrated into a hydraulic assembly 8 serving to control operation of the brake and the clutch.
  • the hydraulic assembly 8 in addition to a reservoir 83 for hydraulic media, a pump 84, said cylinders 81, 82 for controlling operation of the brake and the clutch, comprises also a hydraulic motor 3 together with a corresponding pressure storage unit 85, which is in a serial manner connected with said hydraulic motor 3.
  • said hydraulic motor 3 and the belonging pressure storage unit 85 are mutually interconnected within the hydraulic assembly 8 in such a manner, that by activation of the hydraulic cylinder 81 of the brake and the hydraulic cylinder 82 of the clutch in order to deactivate said brake or said clutch, supplying the pressure from the reservoir 83 via the pump 84 is terminated, upon which the hydraulic motor 3 is supplied with the pressurized media from the pressure storage unit 85.
  • the hydraulic media is primarily supplied towards the pressure storage unit 85 and after that also towards the cylinders 81, 82 as well as towards the hydraulic motor 3, wherein such sequence is achieved e.g. by means of throttle members 87, 88.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Hydraulic Motors (AREA)
  • Pulleys (AREA)

Claims (2)

  1. Ensemble hydraulique d'entraînement et de guidage d'un élément de traction longitudinale, comprenant au moins un élément d'entraînement (1), qui est rotatif autour de son axe géométrique (10) au moyen d'un moteur hydraulique (3) et se trouve dans la zone de paliers (41, 42) ou d'éléments similaires de paliers intégrés au sein d'un carter (2) approprié, caractérisé en ce que l'élément d'entraînement (1) est choisi parmi le groupe consistant en des poulies pour corde, des poulies pour courroie et des roues pour chaîne, est fixé sur un intérieur du carter (2) faisant saillie et intégré dans celui-ci une partie rotative (31) d'un moteur hydraulique (3), de sorte que la transmission de couple entre eux est possible, tandis que sa partie fixe (32) est fixée au carter (2), et en ce que, à l'intérieur dudit carter (2), un élément d'entraînement (7) auxiliaire est prévu, qui est situé de façon adjacente à l'élément d'entraînement (1) principal et peut tourner autour de l'axe (71) s'étendant parallèlement par rapport à l'axe (10) de l'élément d'entraînement (1) principal, de telle manière que la corde (5) ou un moyen flexible de traction similaire s'étend entre lesdits éléments d'entraînement (1, 7), dans lequel un engrenage (15) est fixé à l'élément d'entraînement (1) principal et l'engrenage (75) est fixé à l'élément d'entraînement (7) auxiliaire, ce par quoi lesdits engrenages (15, 75) sont adaptés à être engagés l'un avec l'autre, et dans lequel la partie fixe (32) du moteur hydraulique (3) fait saillie axialement à l'intérieur du carter (2) et est équipée avec des connexions hydrauliques (81, 82) situées à l'extérieur du carter (2), et est de plus entourée avec une partie rotative (31) dudit moteur hydraulique (3), qui est intégrée à l'intérieur du carter (2) au moyen de paliers (41, 42) et à laquelle, sur sa circonférence, un élément d'entraînement (1) est fixé.
  2. Ensemble hydraulique d'entraînement et de guidage selon la revendication 1, caractérisé en ce que ladite partie rotative (31) du moteur hydraulique (3) est intégrée à l'intérieur dudit carter (2) au moyen de deux paliers (41, 42), qui sont situés axialement espacés l'un de l'autre, tandis que l'élément d'entraînement (1) est situé sur ladite partie rotative (3) entre lesdits paliers (41, 42).
EP09758637.4A 2008-06-03 2009-04-17 Dispositif hydraulique pour conduire et guider un élément de halage longitudinal, en particulier une poulie de treuil forestier Active EP2285723B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SI200800144A SI22797A (sl) 2008-06-03 2008-06-03 Hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa, zlasti vrvenica pri gozdarskem vitlu
SI200900059A SI22800B (sl) 2008-06-03 2009-03-03 Hidravlični pogonski in vodilni sklop gibkega linijskega nosilnega elementa, zlasti vrvenica pri gozdarskem vitlu
PCT/SI2009/000018 WO2009148414A1 (fr) 2008-06-03 2009-04-17 Dispositif hydraulique pour conduire et guider un élément de halage longitudinal, en particulier une poulie de treuil forestier

Publications (2)

Publication Number Publication Date
EP2285723A1 EP2285723A1 (fr) 2011-02-23
EP2285723B1 true EP2285723B1 (fr) 2013-05-01

Family

ID=40943896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP09758637.4A Active EP2285723B1 (fr) 2008-06-03 2009-04-17 Dispositif hydraulique pour conduire et guider un élément de halage longitudinal, en particulier une poulie de treuil forestier

Country Status (3)

Country Link
EP (1) EP2285723B1 (fr)
SI (1) SI22800B (fr)
WO (1) WO2009148414A1 (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SI23178B (sl) * 2009-10-21 2015-10-30 Uniforest, D.O.O. Neomejeno vrtljiva usmerjevalna naprava z gnano vrvenico s hidravličnim motorjem
SI24107A (sl) 2012-05-29 2013-12-31 Tajfun Planina Proizvodnja Strojev, D.O.O. Gozdarski vitel s kontroliranim odvijanjem vlečne vrvi
SI24108B (sl) 2012-05-31 2016-03-31 Tajfun Planina Proizvodnja Strojev, D.O.O. Gozdarski vitel s kontroliranim navijanjem vlečne vrvi in varovanjem le-te proti preobremenitvi
SI24540B (en) * 2013-11-08 2018-01-31 Tajfun Planina Proizvodnja Strojev, D.O.O. Forestry winch with advanced control of the assembly for controlled unwinding of the tow rope from the winding drum
SI24539A (sl) 2013-11-08 2015-05-29 Tajfun Planina Proizvodnja Strojev, D.O.O. Gozdarski vitel z izpopolnjenim vodenjem vlečene vrvi v območju zgornjega škripčnika
SI24541A (sl) 2013-11-08 2015-05-29 Tajfun Planina Proizvodnja Strojev, D.O.O. Gozdarski vitel z izpopolnjenim vodenjem, navijanjem in odvijanjem vlečne vrvi
SI24950A (sl) * 2015-03-13 2016-09-30 PIĹ EK - VITLI KRPAN, d.o.o Hidravlični sistem z dodatnim varovanjem delovanja hidravličnega tokokroga sklopke in zavore bobna pri gozdarskem vitlu
DE102021107515A1 (de) * 2021-03-25 2022-09-29 Suffel Fördertechnik GmbH & Co. KG. Auswerfer für eine Forsteilwinde
DE102021107516A1 (de) * 2021-03-25 2022-09-29 Suffel Fördertechnik GmbH & Co. KG. Auswerfer für eine Forsteilwinde

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB530640A (en) * 1938-10-15 1940-12-17 Mckiernan Terry Corp Improvements in mechanism for paying out hoisting lines
DE1936097A1 (de) * 1969-07-16 1971-01-28 Rotzler Kg Maschf Ernst Seilwinde
US3843094A (en) * 1973-01-05 1974-10-22 R Watts Traction device
GB8627684D0 (en) * 1986-11-19 1986-12-17 Bellway Plc Vehicle winch
DE19830239B4 (de) * 1998-07-07 2008-02-07 S + R Maschinenbau Gmbh Schlang & Reichart Forstseilwinden Forstseilwinde
DE202005020694U1 (de) * 2005-04-08 2006-06-22 A. Ritter u. Söhne, Maschinenfabrik und Landmaschinen GmbH & Co KG Seilauswurf- und Seileinlaufbremsvorrichtung
JP2007075473A (ja) * 2005-09-16 2007-03-29 Toshintec Kk 車椅子乗降用電動ウィンチ
WO2009072992A2 (fr) * 2007-12-04 2009-06-11 Uniforest, D.O.O. Engrenage d'entraînement pour déroulement de corde sur treuils forestiers

Also Published As

Publication number Publication date
SI22800A (sl) 2009-12-31
SI22800B (sl) 2013-11-29
WO2009148414A1 (fr) 2009-12-10
WO2009148414A9 (fr) 2010-03-18
EP2285723A1 (fr) 2011-02-23

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