EP0171386A1 - Dispositif de guidage pour tambour de treuil. - Google Patents

Dispositif de guidage pour tambour de treuil.

Info

Publication number
EP0171386A1
EP0171386A1 EP83901234A EP83901234A EP0171386A1 EP 0171386 A1 EP0171386 A1 EP 0171386A1 EP 83901234 A EP83901234 A EP 83901234A EP 83901234 A EP83901234 A EP 83901234A EP 0171386 A1 EP0171386 A1 EP 0171386A1
Authority
EP
European Patent Office
Prior art keywords
drum
pulley
tumbler
fixed pulley
sheave
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
EP83901234A
Other languages
German (de)
English (en)
Other versions
EP0171386B1 (fr
Inventor
Jan Fonger Minnee
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
Publication of EP0171386A1 publication Critical patent/EP0171386A1/fr
Application granted granted Critical
Publication of EP0171386B1 publication Critical patent/EP0171386B1/fr
Expired legal-status Critical Current

Links

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
    • B66D1/38—Guiding, or otherwise ensuring winding in an orderly manner, of ropes, cables, or chains by means of guides movable relative to drum or barrel

Definitions

  • the invention concerns an appliance which becomes necessary to wind a wire evenly over the full length of the drum in cases where the fleet angle exceeds approx.4 o or where the distance of the lead or fixed sheave in front of the drum is shorter then approx.7 times the drumlength.
  • a wellknown device fulfilling these conditions produces the required path by means of a sheave rotating and translating along a shaft which in turn, by means of cranks placed at either end at different angles, makes an oscilating movement in front of the drum, the character of the path being governed by the length and angle of the cranks.
  • the use of swiveling bearings for this shaft restricts the cranklength in comparison with the drum length and so the application to the condition a > 2.4 b.
  • the required path is produced by a "tumbler" sheave, pivoting on a foundation in front of the drum such that the tangent to drum and fixed lead halves the tumblers height, causing the wire reaction to point at the hinge.
  • each ratio a/c determines one optimum curve/radius and minimum size of the spooler related to b.
  • the number of layers on the drum has limits, if the tangent cuts the tumbler above midheight, then a preference for the central part of the drum will be shown (empty drum) whereas guiding on to a full drum a preference for the sides will be shown. Due to the steering forces developed by the wire already on the drum, the working range between unacceptable preferences is sufficient for practical use and can be increased by choosing a larger tumbler than the minimum size. Besides : the tendency to cover the sides of a full drum may be useful in cases where a mechanically driven tumbler spooler may be advantageous in comparison with the usual transverse guiding-on gear with diamond threaded drive shaft, where the required force is much heavier (fig.5) and the means weaker.
  • a practical way of producing the required path is found in a tumbler not having a fixed hinge pin, but a round toe which while rocking is also rolling over a transverse rail, thus reducing the physical dimensions of the tumbler, reducing support pressure by spreading it over a larger surface and enabling the device to be counterbalanced so that, when the wire slackens, it remains in its original position (fig.3) Structurally the generated forces in the tumbler do not require the use of special material or parts.
  • a centering system to ensure the tumbler is kept central in front of the drum using cross wire ropes and a wide enough toe to ensure lateral stability is simple but sufficient.
  • a further measure to minimize sheave wear is given by an additional hinge point in the centreline of the winch, at a certain distance from the device causing the toe to swing gradually over the rail in order to swivel the sheave in the correct angle of the wire run from drum to fixed lead.
  • This may be realised by means of a protruding cam near the bottom of the toe reaching into a fixed camplate, in which it moves vertically up and down when the tumbler rocks and rolls.
  • camplate is also mounted at the other side of the tumbler with a different shaped profile to follow the cam along its path, then the tumbler will be secured in all directions and can be used in all positions if required.
  • Fig.4 presents a compact winch arrangement, providedwith slotted plates and cam (2)
  • fig.5 shows a tumbler spooler with mechanical external drive.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transmission Devices (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Ropes Or Cables (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)

Abstract

La présente invention, appartenant à la catégorie des bobineuses automatiques de fil métallique, a trait à une application plus simple du principe connu selon lequel un fil tendu choisi la distance la plus courte entre deux points, mais si cela n'est pas le cas, il n'aura de préférence pour aucune position particulière, sauf pour suivre l'enroulement sur le tambour. Cela peut être effectué par une poulie mobile se déplaçant le long d'une piste en forme d'arc dans un plan perpendiculaire entre le tambour et la poulie fixe. Le rayon de cet arc dépend de la distance relative entre la poulie de bobineuse et le tambour et la poulie fixe, de la largeur du tambour et de la hauteur du sommet de la piste au-dessus de la ligne de base, formée par la tangente sur le tambour et la poulie fixe. La poulie peut être montée sur un bras oscillant, mais, en vue d'une réduction de dimension et d'une meilleure adaptation aux phénomènes théoriques et pratiques, le cadre de la poulie devrait pivoter et rouler simultanément. La bobineuse doit être contrebalancée de façon à conserver sa position primitive lorsque le fil se relâche. Une telle construction permet un bobinage très compact pour un treuil.
EP83901234A 1982-02-11 1983-04-07 Dispositif de guidage pour tambour de treuil Expired EP0171386B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL8200512A NL8200512A (nl) 1982-02-11 1982-02-11 Draadspoelinrichting voor liertrommel.

Publications (2)

Publication Number Publication Date
EP0171386A1 true EP0171386A1 (fr) 1986-02-19
EP0171386B1 EP0171386B1 (fr) 1987-09-02

Family

ID=19839233

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83901234A Expired EP0171386B1 (fr) 1982-02-11 1983-04-07 Dispositif de guidage pour tambour de treuil

Country Status (3)

Country Link
EP (1) EP0171386B1 (fr)
NL (1) NL8200512A (fr)
WO (1) WO1984003876A1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0337786A1 (fr) * 1988-04-14 1989-10-18 Briggs Irrigation Uk Limited Appareil de dépose de câble

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR852346A (fr) * 1940-01-30
US2336684A (en) * 1942-10-08 1943-12-14 Robert T Hendrickson Level winding device for winch drums
US2473628A (en) * 1944-08-19 1949-06-21 Motor Res Corp Winding device or winch
FR993133A (fr) * 1949-05-27 1951-10-26 Dispositif combiné de guidage et freinage automatiques pour treuils
FR1016031A (fr) * 1950-04-06 1952-10-30 Automobiles Ind Latil Procédé et dispositif d'enroulement correct pour câbles ou fils
US3078060A (en) * 1960-09-28 1963-02-19 Le Bus Royalty Company Fleet angle correction apparatus
FR1299936A (fr) * 1961-09-08 1962-07-27 Lebus Royalty Company Appareil pour l'enroulement d'un câble
CH458668A (de) * 1967-10-11 1968-06-30 Kyburz Heinrich Seilführungs-Einrichtung an Trommel-Seilwinden
CH516474A (de) * 1970-06-06 1971-12-15 Bachmann Marcel Seillenkvorrichtung an einer Seiltrommel
FR2185583B1 (fr) * 1972-05-23 1976-08-13 Potain Sa
AT346029B (de) * 1976-03-30 1978-10-25 Hackl Leopold Seilfuehrungsvorrichtung fuer seilwinden

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO8403876A1 *

Also Published As

Publication number Publication date
NL8200512A (nl) 1983-09-01
WO1984003876A1 (fr) 1984-10-11
EP0171386B1 (fr) 1987-09-02

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