EP0360033B1 - Seilzugvorrichtung - Google Patents

Seilzugvorrichtung Download PDF

Info

Publication number
EP0360033B1
EP0360033B1 EP89115800A EP89115800A EP0360033B1 EP 0360033 B1 EP0360033 B1 EP 0360033B1 EP 89115800 A EP89115800 A EP 89115800A EP 89115800 A EP89115800 A EP 89115800A EP 0360033 B1 EP0360033 B1 EP 0360033B1
Authority
EP
European Patent Office
Prior art keywords
pressure
chain
rope
rollers
elements
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 - Lifetime
Application number
EP89115800A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0360033A1 (de
Inventor
Manfred Harig
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.)
Greifzug Hebezeugbau GmbH
Original Assignee
Greifzug Hebezeugbau 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 Greifzug Hebezeugbau GmbH filed Critical Greifzug Hebezeugbau GmbH
Publication of EP0360033A1 publication Critical patent/EP0360033A1/de
Application granted granted Critical
Publication of EP0360033B1 publication Critical patent/EP0360033B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B66D1/60—Rope, cable, or chain winding mechanisms; Capstans adapted for special purposes
    • B66D1/74—Capstans
    • B66D1/7415—Friction drives, e.g. pulleys, having a cable winding angle of less than 360 degrees

Definitions

  • the invention relates to a cable pull device with a driven traction sheave and with a continuous rope, the load strand wraps around the traction sheave and at the end of the wrapping of at least one pressure element via pressure elements which are arranged in the links of an endless chain rotating around a guide element, in the cable groove of the Traction sheave is pressed, wherein the guide element is designed as a pressure element and has at least one running surface parallel to the bottom of the cable groove, on which pressure rollers roll, which are rotatably mounted in the chain.
  • a cable pulling device of this type is known (US-A-2 938 707), in which the cable with the pressure rollers is pressed into the cable groove of the traction sheave. Since the pressure rollers only have at most one line contact with the rope, they generate a high specific contact pressure on it, which plastically deforms the rope when large loads are to be lifted or lowered with the rope. In addition, the pressure rollers on the rope move in the longitudinal direction while they exert their contact pressure on the rope, whereby the crushing stress on the rope is further increased and this is subject to high wear.
  • a cable pulling device is also known (DE-B-22 01 548), in which the pressure element is formed by three rollers mounted on a vibrating beam, which on the inside of the links, designed as a rolling surface, one around a guide ramp encircling, endless chain presses, the chain links press the rope into the rope groove of the traction sheave.
  • the pins of the chain carry chain rollers on the outside of the chain links, which engage with notches in the drive pulley and ensure that the chain is carried along by the drive pulley and roll on the guide ramp.
  • the noise caused by the chain running around the guide ramp is very large, since the tension of the chain is reduced when it is pressed onto the rope, and the movement play between the guide ramp and chain that is caused thereby leads to rattling.
  • Another known embodiment of a rope drive uses an endless pressure chain with chain links which have pressure pieces which press the rope into the rope groove of the rope sheave (BE-A-827 486).
  • the pressure is generated by means of three pressure rollers, which are arranged in a chain housing that can be positioned radially against the sheave.
  • the chain is returned via two pulleys.
  • each chain element designed as a pressure piece always executes a tilting movement as soon as it runs in or out under one of the pressure rollers. This does not result in a uniform, full-surface contact pressure, but in line contact between the chain link and rope, which results in uneven pressure and high rope wear.
  • the object of the invention is to design a cable pulling device of the type explained in the introduction in such a way that a good frictional connection between the cable and the traction sheave is produced, which permits a high cable load without the high pressure of the pressing element required for this purpose plastically deforming the outer wires of the cable or Rattling noises are generated.
  • This arrangement has the advantage that a statically acting, distributed over a relatively large surface pressure force acts on the rope, but the pressure pieces can not perform pivoting movements under contact pressure, since the contact pressure only occurs when the pressure piece is fully on the rope. Since the pressure surface remains constant, the permissible pressure on the rope edge fibers is not exceeded even under high loads. So that there is always optimal contact between the pressure pieces and the rope even with a non-uniform course of the rope, it is expedient to mount the pressure element in a tiltable manner.
  • each pressure piece has at least two pressure rollers arranged at a distance from one another in the longitudinal direction of the chain.
  • the pressure rollers are arranged in the longitudinal center plane of the pressure pieces. With particularly high contact forces or with the narrow width of the pressure pieces determined by the rope shape, it is possible to arrange the pressure rollers on both outer sides of the pressure pieces. For special applications it can be useful to combine the different pressure roller arrangements.
  • the pressure rollers are designed as roller bearings with a reinforced outer ring, it is ensured that the high radial contact forces are reliably transmitted to the pressure pieces; The rolling elements are protected against abrasion and dust when installing closed bearings.
  • the length of the running surface of the pressure element parallel to the base of the cable groove is at least as long as the distance which two pressure pieces in succession in the chain take up. The longer the parallel part of the tread, the more pressure pieces can transmit the contact pressure and the lower the surface pressure on the rope edge fibers.
  • the chain can also be designed so that successive thrust pieces are connected to one another by link plates which are mounted on the bolts of the pressure rollers.
  • 10 denotes a cable pulling device with a continuous pulling cable 11, which is preferably designed as a steel cable and on the load strand 12 of which the load to be moved hangs, whereas the lost drum 13 is loaded only by its own weight.
  • the load strand 12 of the rope 11 runs tangentially into the rope groove 16 of a traction sheave 15 rotatably mounted in the housing 14, wraps around it and is again guided tangentially out of the housing 14 as a lost drum 13.
  • the drive of the traction sheave 15 is not the subject of the invention and is therefore not shown.
  • the traction sheave 15 has a semi-circular rope groove 16 adapted to the profile of the rope 11.
  • the rope groove 16 can also be designed as a wedge groove, as is the case in FIG. 5 is shown.
  • the rope 11 is pressed at the end of its looping path by a pressure device 17 into the rope groove 16 of the traction sheave 15.
  • the pressure device 17 consists of a kidney-shaped pressure element 19 which is tiltably mounted on a spring-loaded lever 18 and on the running surface 20 of which pressure rollers 21 roll.
  • the pressure rollers 21 are mounted on the pin 25 of an articulated chain 22, the chain links of which are alternately mounted on the pin 25 by pressure pieces 24 and on their outer sides 33 stored tabs 26 are formed.
  • the running surface 20 of the pressure element 19 runs on its part facing the traction sheave 15 over the length L parallel to the cable groove 16 of the traction sheave 15 and is delimited on each side by a guide web 27 in order to prevent the chain 22 from slipping off the running surface 20 and to give the pressure rollers 21 lateral guidance.
  • the pressure pieces 24 are circularly adapted on their side of the traction sheave 15 facing the cable 11 and, as shown in FIGS. 3 and 5, have a profiling 28 which is adapted to the outer diameter of the cable 11.
  • This profile design has the advantage that the contact pressure is evenly distributed on the rope 11, which leads to a reduction in the wear of the rope 11.
  • the pressure pieces 24 are provided on the side facing the pressure element 19 in the running direction of the chain 22 with a groove 29 and at the front and rear end with a transverse bore which serve to receive bolts 25 which are also axes of the pressure rollers 21.
  • the pressure rollers 21 are designed as roller bearings with a reinforced outer ring in order to be able to transmit large pressure forces. Closed bearings are used to protect against foreign body entry.
  • the pressure element 19 has a length L which is at least as long as the distance S which two pressure pieces 24 consecutive in the chain occupy.
  • An embodiment is particularly expedient in which the length L of the running surface of the pressure element is three times as great as the distance S which two successive pressure pieces take up. The rope is then pressed into the groove over a large length. However, this embodiment is not shown in the drawing. Due to the geometric design of the pressure element 19, a pivoting movement of the pressure pieces 24 under the contact pressure is prevented and line contacts between pressure piece 24 and rope 11 are avoided, which result in high rope wear.
  • FIG. 4 A further possible arrangement of the pressure rollers 21 on the pressure piece 24 is shown in FIG. 4.
  • two pressure rollers 21 are overhung on the outside 33 of the pressure piece 24 on each pin 25, which roll on running surfaces 20 of the pressure element 19 and from one in the middle of the treads 20 arranged guide web 27 are guided. This reduces the surface pressure between the pin 25 and the pressure piece 24.
  • the traction sheave 15 rotates, the rope 11 and the chain 22 are taken along by frictional engagement at the same angular velocity.
  • the frictional engagement can be converted into frictional engagement if a type of sprocket with the pitch of the chain 22 is attached to the drive pulley 15. In this case, it is sufficient if a chain wheel is attached to only one side of the chain, in which the bolts 25 engage only at one end.
  • the chain 22 itself is not subjected to any tensile load and therefore runs largely wear-free on the running surface 20 around the pressure element 19.
  • the invention is not limited to the illustrated and described embodiment, but several changes and additions are possible without leaving the scope of the invention.
  • a knitted synthetic fiber belt as a traction device, which has a large, load-distributing support on a flat, rubberized traction sheave and could use favorable coefficients of friction.
  • the pressure pieces can also be provided with at least one pressure roller in the middle. It is only important that there is no pivoting movement of the pressure pieces under contact pressure.
  • the pressure element 19 can also be adjusted depending on the load.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Electric Cable Installation (AREA)
  • Flexible Shafts (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Pulleys (AREA)
EP89115800A 1988-09-23 1989-08-26 Seilzugvorrichtung Expired - Lifetime EP0360033B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832360A DE3832360C1 (zh) 1988-09-23 1988-09-23
DE3832360 1988-09-23

Publications (2)

Publication Number Publication Date
EP0360033A1 EP0360033A1 (de) 1990-03-28
EP0360033B1 true EP0360033B1 (de) 1993-02-03

Family

ID=6363571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89115800A Expired - Lifetime EP0360033B1 (de) 1988-09-23 1989-08-26 Seilzugvorrichtung

Country Status (4)

Country Link
US (1) US5082248A (zh)
EP (1) EP0360033B1 (zh)
DE (1) DE3832360C1 (zh)
ES (1) ES2039054T3 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018138000A1 (de) 2017-01-27 2018-08-02 Technische Universität Dresden Seildurchlaufwinde

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2695115B1 (fr) * 1992-09-01 1995-01-13 Bretagne Hydraulique Dispositif de halage d'un câble.
US5402985A (en) * 1993-08-23 1995-04-04 Maxwell Winches Limited Rope winches
US6247680B1 (en) * 1996-08-06 2001-06-19 Abraham Cohen Cable hoist controller
NO324416B1 (no) * 1998-04-21 2007-10-08 Odim Asa Flerskaren tractionvinsj
US6484920B1 (en) 2000-11-01 2002-11-26 Dynacon, Inc. Cable umbilical gripper
AT413660B (de) * 2004-01-27 2006-04-15 Fronius Int Gmbh Vorrichtung und verfahren zum transport eines drahtes
US7021510B2 (en) * 2004-02-12 2006-04-04 David Irwin Ellingson Cable traction apparatus and method
US8317160B2 (en) * 2007-10-12 2012-11-27 Safeworks, Llc Restraint device for traction sheaves
US20090200529A1 (en) * 2008-02-07 2009-08-13 Safeworks, Llc Multi-use hoist system
DE102012110782B4 (de) 2012-11-09 2017-03-30 Technische Universität Dresden Klemmwinde

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1716229A (en) * 1925-08-03 1929-06-04 William P Immel Clutch
US1759105A (en) * 1928-09-07 1930-05-20 Charles S Knight Die for laying wire rope and wire-rope strands
US2875624A (en) * 1955-07-25 1959-03-03 Lathrop Paulson Co Belt drive
US2875890A (en) * 1957-06-10 1959-03-03 Fred C Good & Sons Inc Windlass
US2938707A (en) * 1958-04-01 1960-05-31 Allenbaugh Ralph Hoisting mechanism
FR1431738A (fr) * 1965-01-15 1966-03-18 Bertin & Cie Procédé et dispositif d'entraînement par courroies ou autres bandes souples
US3329406A (en) * 1965-07-12 1967-07-04 Henry J Flair Push-pull capstan type cable drive
DE2201548C3 (de) * 1972-01-13 1981-06-11 Tractel S.A., Paris Seilwinde für unbegrenzten Seildurchlauf
US3729173A (en) * 1972-01-24 1973-04-24 Tractel Sa Endless jaw chain self-clamping winch
BE827486A (nl) * 1975-04-03 1975-07-31 Verbeterde lier
BE833842R (nl) * 1975-09-26 1976-01-16 Verbeterde lier
US4139178A (en) * 1977-09-22 1979-02-13 Power Climber Inc. Hoist apparatus
DE3509920C2 (de) * 1985-03-19 1993-11-25 Greifzug Hebezeugbau Gmbh Seilzugvorrichtung

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018138000A1 (de) 2017-01-27 2018-08-02 Technische Universität Dresden Seildurchlaufwinde
DE102017101656A1 (de) 2017-01-27 2018-08-02 Technische Universität Dresden Seildurchlaufwinde

Also Published As

Publication number Publication date
ES2039054T3 (es) 1993-08-16
US5082248A (en) 1992-01-21
EP0360033A1 (de) 1990-03-28
DE3832360C1 (zh) 1990-02-01

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