EP0139673B1 - Winde - Google Patents

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Publication number
EP0139673B1
EP0139673B1 EP19840901076 EP84901076A EP0139673B1 EP 0139673 B1 EP0139673 B1 EP 0139673B1 EP 19840901076 EP19840901076 EP 19840901076 EP 84901076 A EP84901076 A EP 84901076A EP 0139673 B1 EP0139673 B1 EP 0139673B1
Authority
EP
European Patent Office
Prior art keywords
rope
control
working
winch
reel
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
EP19840901076
Other languages
English (en)
French (fr)
Other versions
EP0139673A1 (de
Inventor
Antti Ruokolainen
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to AT84901076T priority Critical patent/ATE27796T1/de
Publication of EP0139673A1 publication Critical patent/EP0139673A1/de
Application granted granted Critical
Publication of EP0139673B1 publication Critical patent/EP0139673B1/de
Expired legal-status Critical Current

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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
    • B66D1/02—Driving gear
    • B66D1/14—Power transmissions between power sources and drums or barrels
    • 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 is concerned with a winch device and in particular with a method for controlling the operation of the winch.
  • a winch device in accordance with the application will be used a winch device used in forestry for harvesting of timber, the designation winch being used for the said winch device in the following.
  • winches e.g. FI-C-59-3708
  • winches include a working rope and a control rope or cord for controlling the operation of the winch that the control rope must be tensioned or pulled outwards from the winch when the winch is supposed to pull the working rope into the winch.
  • winches known at present may be divided into two groups in respect of their principle of operation:
  • the winch in accordance with the FI-C-50,405 can be mentioned.
  • the hydraulic winches in use at present also operate by means of the same control principle.
  • the control of the valve opening and closing, respectively, the supply of oil to the hydraulic motor has been accomplished so that the valve is opened when the control lever of the valve is tensioned, e.g., against a spring force, and that, correspondingly, the valve is closed by the effect of the said spring force when the control lever is released.
  • the operation of the control valve is supposed to be performed more remote from the winch, the operation of the said valve may be controlled, e.g., by means of a control cord attached to the control lever.
  • a winch is described whose operation is affected, besides by the ten- siohing of the control cord, also by its movement.
  • Such a winch possesses certain advantages, described in the said patent, over the simpler winch described above.
  • winch e.g., the revolving angle of the working-rope reel can be controlled more accurately.
  • the winch is as such suitable, e.g., for loading a forest tractor if the hoisting distances are short, but in the case of long hoisting distances, the same problems are encountered as with the winch mentioned above.
  • the control rope moves in a direction opposite to the working rope, i.e., when the control rope is being pulled out of the winch, the winch pulls the working rope into the winch, and the other way round.
  • both the working rope and the control rope, or at least one of them, are always outside the winch.
  • the length of the control rope is limited to about ten metres, but that results in a new problem. If the length of the control rope is less than the hoisting distance, the operator must first attach the hoisting claws to the log and thereupon return to the control rope to start hoisting. However, in practice it often happens that when the working rope is tensioned, the hoisting claws slip off the log, and the operator must return to the log, attach the hoisting claws, go back to the control rope, etc.
  • a reeling device carried on the back is at present used as an aid to some extent, which said device reels the slack control rope by means of spring force into the device.
  • the reeling device is full of rope when the operator is alongside the winch, but it is emptied when he walks off the winch.
  • the quantity of rope that can be reeled into the device is, however, relatively limited, and in practice the extreme limit of its operation is often reached, at which time it can no longer deliver control rope.
  • the reeling device is of some help, but the following deficiencies and drawbacks still remain:
  • the reeling device accommodates only about 30 to 40 metres of control rope, and if the log to be hoisted is more distant, the operator must take the reeling device off his back and, after he has attached the hoisting claws to the log, he must return to the reeling device in order to start hoisting.
  • a winch e.g., for harvesting wood in the case of thinning out of the forest, the hoisting distances are often longer than the distance of operation of the reeling device.
  • the operator's walking along with the log to be hoisted may cause various dangerous situations, e.g. when the operator happens to fall down during hoisting.
  • the control rope is most likely to be slackened, whereat, in the prior-art winch constructions, the consequence is that the operating connection pulling the working-rope reel, such as the friction coupling, is opened.
  • the winch includes a particular safety device to prevent such a situation.
  • a safety device is also required by the law in certain countries.
  • GB-A-805,725 discloses a winch wherein a control cable is wound in and out together with the working rope. Winding in of the working rope is controlled electrically either through conductors of the control cable or by acoustic wireless control. Common unwinding of the control cable and working rope is controlled by pull on the working rope.
  • the winch device shown in Fig. 1 consists of a stationary hollow shaft 13 attached to an appropriate frame construction 19 as well as of a working-rope reel 7 and a control-rope reel 33, mounted on the said shaft 13 as freely revolving and having a limited axial movement, as well as of members, mounted on the said hollow shaft 13, for producing the driving power and for controlling the operation of the working-rope reel and the control-rope reel relative each other.
  • the winch is constructed so that it can be mounted to the three-point fastening gear of a tractor, and in such a case it receives its operating power from the power take-off of the tractor.
  • the reeling power for the winch is transmitted by means of appropriate equipment (not shown) to a chain 47 and, by means of the chain, further to the drive or chain wheel 16.
  • the same equipment also transmits the operating power to the control equipment of the winch by the intermediate of a chain 46 and a cogwheel 25.
  • the working-rope reel 7 of the winch is installed as freely revolving on bearings 10, the working rope 48 that pulls or lifts the load being wound onto the said reel 7, and, correspondingly, unwound for the purpose of hoisting a new load.
  • the journalling of the working-rope reel 7 has been accomplished so that the working-rope reel can move substantially freely, but restrictedly, in a way to be described below, on the shaft 13.
  • a connecting shaft 1 is journalled inside the hollow shaft 13 as passing through it and projecting out of both of its ends.
  • the connecting shaft 1 is concentric with the hollow shaft 13, and it is journalled as freely revolving relative the hollow shaft 13.
  • a locking nut 2 or equivalent At the end of the connecting shaft 1 that projects out of the end of the hollow shaft 13 next to the working-rope reel 7, a locking nut 2 or equivalent has been fastened as the outermost component. Between this locking nut and the working-rope reel 7, the first rotational wedge member 4,5,6 is installed, whose purpose will be explained later.
  • a locking nut 36 or equivalent has been fixed correspondingly and, inwards from the said nut 36, a rotational wedge member 31,32,35 corresponding to that mentioned above, the purpose of this second member being likewise explained later.
  • the control-rope reel 33 is mounted further, being freely revolving but having a restricted axial movement.
  • the said chain wheel 16 is mounted on the hollow shaft 13 as freely revolving, but as axially immobile relative the hollow shaft.
  • the said chain wheel 16 is mounted alongside the working-rope reel 7, at the side facing the control-rope reel 33, so that the working-rope reel 7 can reach contact with the friction face 15 on the chain wheel 16 within the limits of its axial movement.
  • the second said chain wheel 25 is mounted in connection with the control-rope reel 33, at the side facing the working-rope reel 7, so that the control-rope reel 33 can reach contact, by means of the members attached to the said reel 33, with the friction face 29 on the chain wheel 25 within the scope of its axial movement.
  • the second said chain wheel 25 is also journalled on the hollow shaft 13 as freely revolving but as locked in respect of axial movement.
  • the said members attached to the working-rope reel 33 which act jointly with the friction face 29 on the chain wheel 25, consist of drag mem-- bers 26 fixed onto the control-rope reel 33 as well as of a clutch disc 30 attached to the connecting shaft 1 non-rotatably but with a restricted movement in the axial direction.
  • the device in accordance with the invention also includes a locking member 40, functioning as a safety device, which, in certain operating situations, locks the control-rope reel 33 against revolving in the direction of inward winding and, at the same time, causes stopping of the working-rope reel.
  • a locking member 40 functioning as a safety device, which, in certain operating situations, locks the control-rope reel 33 against revolving in the direction of inward winding and, at the same time, causes stopping of the working-rope reel.
  • the operation of the winch can be described by means of the following example. It is assumed as a starting situation that the drive chains 46 and 47 receive operating power, whereat the chain wheels 25 and 16 revolve in the direction indicated by the arrows, i.e. downwards at the front side in Fig. 1. The working rope has been pulled out, and there is a load at its end. The control rope 43 is also in the pulled-out position, substantially at an equal distance as compared with the working rope 48.
  • control-rope reel If the control-rope reel is allowed to revolve more in the same direction by slackening the control rope, a situation is reached in which the control-rope reel presses the clutch disc 30 against the friction face 29 on the chain wheel 25, whereat the connecting shaft 1 tends to revolve along with the control-rope reel 33.
  • the winch operator wishes to reduce the speed of winding-in of the working rope or to stop the hoisting, he retards the winding-in of the control rope 43 to such an extent that the control-rope reel 33 remains a little angular movement after, relative the connecting shaft 1.
  • the rotational wedge member 32 is returned in the axial direction correspondingly in its narrowing direction, whereat the compression pressure between the control-rope reel 33, the clutch disc 30, and the friction face 29 is reduced.
  • the clutch disc can slip in the trailing direction relative the chain wheel 25, whereat the connecting shaft 1 is no longer rotated at the same speed as in the earlier situation relative the working-rope reel 7, which also results in a slackening of the rotational wedge 4.
  • the winch has two sorts of dragging members 26.
  • the wedge faces of the rotational wedge members have been shaped so that they have variable pitch.
  • the pitch of the wedge faces 50 is steeply rising, whereat, at the final end of the operation of the rotational wedge members, the pitch of the wedge face becomes more gently rising.
  • the safety lock consists of a shaft fixed to the frame 19 of the winch, on which shaft a lever member 39 has been arranged as pivotable so that it is provided with two projecting cams.
  • One of the cams is provided with a pulley 42, over which the guide rope 43 is pulled.
  • the opposite cam 40 is designed as a grasping member, which is arranged so as to engage in a tooth recess 34 provided at the end face of the guide-rope reel.
  • the pivoting of the lever 39 in the direction engaging in the tooth recess 34 is caused by a spring member 44.
  • the objective of the said safety member is to watch the tensioning of the control rope 43 and to cause stopping of the hoisting if the tensioning of the control rope becomes lower than the value determined by the spring 44. Such a situation may occur, e.g., if the person operating the winch falls down during the hoisting, in which case the control rope may become slack. Thereat, if the winch did not have the said safety member, there would be a risk that the log or any other load resting on the working rope bruises the winch operator who fell down in the path of the load, for a slack control rope would mean a full-power hoist command for the winch.
  • the chain wheel 16, which transmits the drive power to the working-rope reel 7 is provided with a catch device, which, at the hoisting stage, permits revolving of the chain wheel in the direction of winding-in only.
  • the said catch device is, however, not entirely indispensable, for in a situation in which the drive power of the winch is lost, reasonable security is obtained for the winch against winding-back by making the catch toothing 34 on the control-rope reel 33 such that it grasps in both directions, whereat, when the control rope becomes slack, the control-rope reel 33 is prevented from revolving in any of the directions.
  • the winch is wedged, owing to the opening of the rotational wedge members, and becomes a rigid unit, which is locked against winding-out by the intermediate of the lever member 39 against the frame 19 of the winch.
  • control method in accordance with the invention may also be accomplished by means of winches of hydraulic or electrical operation.
  • the winch in accordance with the invention may also be accomplished as a dual construction in which the rope reels revolve in opposite directions, in which case the winch gives a good embodiment for a funicular drive.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Storing, Repeated Paying-Out, And Re-Storing Of Elongated Articles (AREA)
  • Emergency Lowering Means (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Electric Cable Installation (AREA)
  • Control And Safety Of Cranes (AREA)

Claims (12)

1. Verfahren zur Steuerung der Arbeitsweise einer Winde oder eines entsprechenden Gerätes, welche eine Arbeitsseil-Trommel aufweist, welche mit einem Antrieb verbunden und von demselben getrennt werden kann und welche das Arbeitsseil aufwindet bzw. ausgibt, wobei die Steuerung mittels Zugbedingungen in einem Steuerseil erfolgt, welches von der Winde aufgewunden bzw. ausgegeben werden kann, und wobei eine Tendenz zum Aufwinden des Steuerseils in die Winde vorgesehen ist, dadurch gekennzeichnet, dass das Aufwinden des Arbeitsseils erzeugt wird, indem man das Steuerseil mit kontrolliertem Zug aufwinden lässt, wobei die Aufwindgeschwindigkeit des Arbeitsseils begrenzt oder das Aufwinden des Arbeitsseils unterbrochen wird, indem das Aufwinden des Steuerseils relativ zum Aufwinden des Arbeitsseils gehemmt wird.
2. Verfahren nach Anspruch 1, dadurch gekennzeichnet, dass das Aufwinden des Arbeitsseils erzeugt wird, indem das Aufwinden des Steuerseils mit einem bestimmten Vorsprung bezüglich des Arbeitsseils gestattet wird, und dass die Geschwindigkeit des Aufwindens des Arbeitsseils begrenzt oder das Aufwinden des Arbeitsseils unterbrochen wird, indem das Aufwinden des Steuerseils bezüglich des Aufwindens des Arbeitsseils innerhalb des erwähnten Vorsprungs gehemmt wird, so dass das Aufwinden des Arbeitsseils gemäss dem Rückstand des Steuerseils verzögert wird, nachdem der Rückstand des Steuerseils gleich dem vorgenannten Vorsprung geworden ist.
3. Verfahren nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Zug im Steuerseil überwacht wird, dass das Aufwinden des Steuerseils unterbrochen wird, wenn der Zug unter einen vorbestimmten Wert fällt, wodurch das Arbeitsseil angehalten oder blockiert wird, und dass das Wiederinsetzen des Aufwindens des Steuerseils and des Arbeitsseils durch Anspannen des Steuerseils derart bewirkt wird, dass der Zug den vorbestimmten Wert übersteigt.
4. Winde zur Durchführung des Verfahrens nach Anspruch 1, mit einer Arbeitsseil-Trommel (7), Antriebsmitteln für dieselbe und einem Steuerseil zur Steuerung des Antriebs der genannten Arbeitsseil-Trommel mittels des Zugs im genannten Steuerseil, dadurch gekennzeichnet, dass die Winde aus einer feststehenden hohlen Achse (13) die auf einer Rahmenkonstruktion getragen ist, aus einer Arbeitsseil-Trommel (7) welche am einen Ende der hohlen Achse angeordnet ist und auf der Achse frei drehbar ist aber begrenztes axiales Spiel hat, aus einer Verbindungswelle (1) welche die hohle Achse (13) durchsetzt und an deren beiden Enden vorsteht, wobei die Verbindungswelle bezüglich der hohlen Achse (13) frei drehbar angeordnet ist, aus einer Steuerseil-Trommel (33) die auf dem Teil der Verbindungswelle (11) angeordnet ist, welcher an dem der Arbeitsseil-Trommel (7) gegenüberliegenden Ende vorsteht, welche Steuerseil-Trommel (33) im wesentlichen frei drehbar auf der Verbindungswelle (1) angeordnet ist und eine begrenzte Möglichkeit axialer Bewegung bezüglich der genannten Welle (1) hat, aus einem sekundären Antriebsrad (16) welches auf der hohlen Achse (13) zwischen der Arbeitsseil-Trommel (7) und der Steuerseil-Trommel (33) seitlich der Arbeitsseil-Trommel frei drehbar aber axial unbeweglich angeordnet ist, aus einer Reibfläche zwischen der Arbeitsseil-Trommel (7) und dem sekundären Antriebsrad (16), aus einem Drehkeil (32) zwischen dem blockierten Ende (36) der Verbindungswelle (1) welche die Arbeitsseil-Trommel (33) und die Steuerseil-Trommel durchsetzt, aus einem Drehkeil (4) zwischen dem gegenüberliegenden blokkierten Ende (2) der Verbindungswelle (1) und der Arbeitsseil-Trommel (7), aus Teilen (25,29,26) welche die Steuerseil-Trommel (33) zwingen, mit begrenzter Kraft bezüglich der Verbindungswelle (1) in der den Drehkeil (32) weitenden Richtung zu drehen womit die Steuerseil-Trommel axial verschoben wird, und aus Teilen (25, 29, 30, 21) welche die Verbindungswelle (1) zwingen mit der Steuerseil-Trommel (33) mitzudrehen, besteht.
5. Winde nach Anspruch 4, dadurch gekennzeichnet, dass die Teile (25, 29, 26) welche die Steuerseil-Trommel (33) zwingen bezüglich der Verbindungswelle(1) zu drehen, dynamische Teile sind und ihre Antriebsenergie von Antriebselementen der Winde erhalten.
6. Winde nach Anspruch 5, dadurch gekennzeichnet, dass die Teile welche die Steuerseil-Trommel (33) zwingen, bezüglich der Arbeitsseil-Trommel (7) zu drehen, aus einem Kettenrad oder dergleichen (25) welches auf der Achse (13) seitlich der Steuerseil-Trommel (33) frei drehbar angeordnet ist, welches Rad (25) die Antriebsenergie der Winde in der Aufwind-Richtung erhält, aus einer an der der Steuerseil-Trommel zugewandten Seite des Kettenrades befestigten Reibfläche (29) und aus Mitnahmeelementen (26) welche mit der Steuerseil-Trommel (33) verbunden sind und in Berührung mit der Reibfläche (29) reichen, bestehen.
7. Winde nach Anspruch 6, dadurch gekennzeichnet, dass zwei Paare von Mitnahmeelementen (26) vorgesehen sind von welchen das eine ständig in Berührung mit der Mitnahmefläche (29) steht, und von welchen das andere Paar nicht mit der ganannten Fläche in Berührung steht, bis der Drehkeil (32) welcher die Steuerseil-Trommel (33) verschiebt, axial expandiert.
8. Winde nach einem der Ansprüche 4 bis 7, dadurch gekennzeichnet, dass der andere Drehkeil (4) zwischen der Arbeitsseil-Trommel (7) und dem blockierten Ende (2) der Verbindungswelle (1) welche diese Trommel durchsetzt, angeordnet ist.
9. Winde nach Anspruch 4, dadurch gekennzeichnet, dass die Drehkeile (32,4) aus Lagerteilen bestehen, die bezüglich einer rechtwinklig zur Axialrichtung der Lagerteile stehenden Ebene in derselben Richtung geneigte Laufflächen (50) aufweisen, deren Neigung in der Rollrichtung welche die Laufflächen voneinander spreizt, abnimmt.
10. Winde nach irgendeinem der Ansprüche 4 bis 9, dadurch gekennzeichnet, dass sie mit Elementen (34, 40, 41, 44, 39, 42) versehen ist, welche die Steuerseil-Trommel (33) bezüglich des Rahmens (19) der Winde gegen Aufwinden sperren, wenn der Zug des Steuerseils (43) unter einen vorbestimmten Wert fällt.
11. Winde nach Anspruch 10, dadurch gekennzeichnet, dass das Sperrelement aus einem fest mit der Steuerseil-Trommel verbundenen gezahnten Element (34), aus einem Hebelelement (39) welches schwenkbar mit dem Rahmen. (19) der Winde verbunden ist und dessen eines freies Ende (40) so angeordnet ist, dass es in eine Zahnlücke des gezahnten Elementes (34) greift, während das gegenüberliegende Ende so angeordnet ist, dass es den Zug des Steuerseils (43) bezügliche eine vorbestimmten Federkraft (44) abgreift, aufweist, wobei die Anordnung so gewählt ist dass das Hebelement in der Zahnlücke
(34) blockiert wird, wenn der Zug im Steuerseil geringer wird als die Federkraft und entsprechend aus der Lücke ausgerückt wird, wenn der Zug des Steuerseils die Federkraft übersteigt.
EP19840901076 1983-03-07 1984-03-07 Winde Expired EP0139673B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84901076T ATE27796T1 (de) 1983-03-07 1984-03-07 Winde.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI830749A FI70870C (fi) 1983-03-07 1983-03-07 Foerfarande foer styrande av vinsch samt vinsch foer utfoerande av foerfarandet
FI830749 1983-03-07

Publications (2)

Publication Number Publication Date
EP0139673A1 EP0139673A1 (de) 1985-05-08
EP0139673B1 true EP0139673B1 (de) 1987-06-16

Family

ID=8516858

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19840901076 Expired EP0139673B1 (de) 1983-03-07 1984-03-07 Winde

Country Status (7)

Country Link
EP (1) EP0139673B1 (de)
JP (1) JPS60500666A (de)
DE (1) DE3464231D1 (de)
DK (1) DK525984D0 (de)
FI (1) FI70870C (de)
SU (1) SU1514243A3 (de)
WO (1) WO1984003487A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE455786B (sv) * 1986-12-03 1988-08-08 Mikael Evert Gunna Aronowitsch Anordning for manuell drivning av en vinsch eller liknande drivorgan
US8386090B1 (en) 2009-02-13 2013-02-26 Brinly-Hardy Company System and method for wireless remote operation of an accessory associated with a vehicle
TW201429855A (zh) * 2013-01-24 2014-08-01 Zun-Qin He 導纜裝置

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB805725A (en) * 1956-12-11 1958-12-10 Ernst Wieger Improvements in or relating to powered shovels
GB1246911A (en) * 1969-03-04 1971-09-22 U & M Flli Beretta Ing Improvements in or relating to mechanical systems for the remote control of davit winch hand brakes
GB1339131A (en) * 1970-05-14 1973-11-28 Vickers Ltd Apparatus for load handling at sea
SE421203B (sv) * 1980-03-05 1981-12-07 Antti Tapio Ruokolainen Vinsch med friktionskoppling

Also Published As

Publication number Publication date
EP0139673A1 (de) 1985-05-08
FI70870B (fi) 1986-07-18
DE3464231D1 (en) 1987-07-23
DK525984A (da) 1984-11-05
DK525984D0 (da) 1984-11-05
FI830749L (fi) 1984-09-08
FI830749A0 (fi) 1983-03-07
SU1514243A3 (ru) 1989-10-07
JPS60500666A (ja) 1985-05-09
WO1984003487A1 (en) 1984-09-13
FI70870C (fi) 1986-10-27

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