EP2014532A1 - Dispositif mécanique de réglage d'un balancier d'appui et de guidage d'un câble aérien d'une installation de remontée mécanique - Google Patents

Dispositif mécanique de réglage d'un balancier d'appui et de guidage d'un câble aérien d'une installation de remontée mécanique Download PDF

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Publication number
EP2014532A1
EP2014532A1 EP08354028A EP08354028A EP2014532A1 EP 2014532 A1 EP2014532 A1 EP 2014532A1 EP 08354028 A EP08354028 A EP 08354028A EP 08354028 A EP08354028 A EP 08354028A EP 2014532 A1 EP2014532 A1 EP 2014532A1
Authority
EP
European Patent Office
Prior art keywords
cable
balance
rollers
rotation
axes
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.)
Withdrawn
Application number
EP08354028A
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German (de)
English (en)
French (fr)
Inventor
Romain Betrand
Jean Souchal
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.)
Poma SA
Original Assignee
Pomagalski SA
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 Pomagalski SA filed Critical Pomagalski SA
Publication of EP2014532A1 publication Critical patent/EP2014532A1/fr
Withdrawn legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B12/00—Component parts, details or accessories not provided for in groups B61B7/00 - B61B11/00
    • B61B12/02—Suspension of the load; Guiding means, e.g. wheels; Attaching traction cables

Definitions

  • the invention relates to a mechanical device for adjusting a rocker for supporting and guiding an overhead cable of a ropeway installation, said beam being provided with rotating main rollers for guiding the cable, rotatably mounted. on a carrier frame according to parallel axes of rotation staggered along the carrier frame in a longitudinal direction of the balance substantially parallel to the direction of the cable.
  • the aerial cable is guided and maintained at each pylon by a lower beam with rotating rollers for supporting and guiding the cable during its travel and / or by an upper balance with rotating rollers. compression and guidance.
  • a mixed balance includes both a lower balance and an upper balance.
  • the pylons are distributed between the departure and arrival stations of the installation. Seats and / or cabins are fixed to the cable by fixed or disengageable gripping clamps.
  • the rotary rollers of the beam are generally associated in pairs by being mounted at the ends of primary beams, articulated in their central part at the ends of beams secondary, themselves mounted in the same way on tertiary beams, and so on according to the number of main rollers.
  • the last beam is mounted hinged in its middle part to a bracket of the supporting structure of the pylon. All these elementary beams (primary, secondary, tertiary etc ...) is a frame-carrier balance.
  • the main rollers of the beam are rotatably mounted on the carrier frame along parallel axes of rotation staggered along the carrier frame in a longitudinal direction of the balance which is substantially parallel to the direction of the cable.
  • Such a standardized arrangement allows the rollers to follow the path of the cable with a homogeneous distribution of the load on the rollers, regardless of the state of charge.
  • each of the main rollers in a lateral direction of the beam is a determining factor in terms of maintenance and safety of the pendulum and more generally of the installation.
  • a rocker in which at least one of the rollers has a lateral offset with respect to the natural configuration of the cable causes twisting cable.
  • the object of the invention consists in producing a mechanical adjustment device which makes it possible to simplify the adjustment operations of a supporting and guiding beam of an overhead cable of a mechanical lift installation, while improving the quality of the setting.
  • the cable bears on the main rotary rollers of the balance for its guidance.
  • the free displacement of the spacer element in the lateral direction of the balance allows the spacer element to be positioned laterally at the vertical cable still engaged in the main rollers.
  • the controlled passage of the spacer element to the working position causes the automatic release of the rollers and the removal of any twisting torque possibly applied to the cable before separation.
  • This transverse movement of the spacer element to the working position can therefore be accompanied by a lateral displacement resulting mainly from the automatic return of the cable to its natural configuration after the release of a twisting torque when such torque was accidentally applied to the cable before spreading.
  • This lateral movement is possible thanks to the possibility offered to the spacer element by the connecting means to move freely in the lateral direction.
  • the main rollers of the balance have a longitudinal alignment coinciding with the direction followed by the cable when it is in its natural configuration.
  • the controlled passage of the spacer element to the waiting position causes the cable to be brought together and engaged in the rollers whose lateral positioning after adjustment makes it possible to ensure that no twisting torque is generated on the cable when engaging in the rollers.
  • the connecting means comprise a locking mechanism of the spacer element in the working position, for example automatic locking and manual unlocking.
  • the Figures 1 to 4 illustrate two main rotary rollers 10a, 10b of a supporting beam and guiding an aerial cable 11 of a mechanical lift installation.
  • the rotary rollers 10a, 10b of the rocker arm are mounted at the ends of a primary beam 12.
  • the primary beam 12 is articulated in its median part at the ends of a secondary beam 13.
  • the primary beam 12 is mounted to pivot freely around a pivot axis 14 of cylindrical shape secured to the secondary beam 13 by any suitable fastening means such as a screw-nut system 15.
  • the secondary beam 13 is itself mounted in the same manner on a tertiary beam (not shown ), and so on according to the number of main rollers.
  • the last beam is hinged in its middle part to a bracket of the supporting structure (not shown) of the pylon.
  • the set of elementary beams of the balance (primary 12, secondary 13, tertiary etc ...) form the chassis-carrier balance.
  • the two primary beams 12 and secondary 13 shown are therefore only part of the carrier frame.
  • the set of main rollers (in variable number as a function of the number of elementary beams) of the balance are rotatably mounted on the carrier frame according to parallel axes of rotation staggered along the chassis-carrier in a longitudinal direction D1 (see arrow on the figure 1 ) of the balance which is parallel to the direction of the cable 11.
  • the longitudinal direction D1 may optionally be inclined, the image of the cable 11 according to the applications.
  • the support and guidance beam partially represented on the Figures 1 to 4 is a lower type of rocker: the two main rollers 10a, 10b shown are therefore rotatable rollers for supporting and guiding the cable 11. Regardless, the following description could be adapted to a support beam and guide type superior which would be equipped with rotary rollers compression and guiding the cable.
  • the support and guidance balance of which only part is represented on the Figures 1 to 4 , is equipped with an example of adjustment device 16 according to the invention.
  • Such an adjustment device 16 may be permanently provided during the construction of the beam, or may be attached by any suitable and suitable removable fastening means.
  • the adjusting device 16 is attached above the primary beam 12 by means of attachment described later.
  • the adjusting device 16 comprises in particular an auxiliary rotary roller 17 mounted pivotally-sliding connection on a cylindrical rotating shaft 18.
  • the axis of revolution of the rotation shaft 18, which is parallel to the axes of rotation of the main rollers 10a, 10b, corresponds to a lateral direction D2 of the balance (see arrow on the figure 4 ).
  • the lateral direction D2 of the balance is therefore parallel to the axes of rotation of all the main rollers of the balance, in particular parallel to the axes of rotation of the main rollers 10a, 10b.
  • the lateral direction D2 is horizontal.
  • the direction perpendicular to the longitudinal direction D1 and to the lateral direction D2 corresponds to the transverse direction D3 of the balance (see arrow on FIG. figure 4 ).
  • the transverse direction D3 can therefore be vertical or inclined by vertical to an angle equal to the possible inclination angle of the longitudinal direction D1 relative to the horizontal.
  • the pivot-sliding connection between the auxiliary roller 17 and the rotation shaft 18 allows on the one hand the free rotation of the auxiliary roller 17 around an axis of rotation coinciding with the lateral direction D2, and on the other hand the translation free of the auxiliary roller 17 in the lateral direction D2.
  • the auxiliary roller 17 has a central bore diameter slightly greater than the diameter of the rotating shaft 18 so as to determine a functional assembly game.
  • Lubrication means may be provided between the bore of the auxiliary roller 17 and the rotation shaft 18, of the oil or grease type. Another solution is to provide the establishment of a self-lubricating sliding bearing in the bore of the auxiliary roller 17.
  • the rotation shaft 18 is connected to the chassis-carrier of the beam (here to the primary beam 12) by lifting means comprising, for example, two flanges 19a, 19b opposite in the lateral direction D2.
  • the flanges 19a, 19b are pivotally mounted on the primary beam 12 along the same pivot axis which parallels the axes of rotation of the main rollers 10a, 10b.
  • the pivot axis of the flanges 19a, 19b is therefore parallel to the lateral direction D2.
  • Such a pivoting movement of the flanges 19a, 19b can be obtained, for example, by means of a mounting comprising a pivot shaft 20 parallel to D2 connecting the two flanges 19a, 19b and integral therewith, pivot shaft 20 being articulated on the primary beam 12.
  • the articulation of the pivot shaft 20 on the carrier frame can be achieved by any means, for example by means of two support plates 21a, 21b secured to the primary beam 12 being opposite in the lateral direction D2.
  • Each support plate 21a, 21b comprises, in its upper part, a through hole for the rotational mounting of one end of the shaft. pivoting 20.
  • the two support plates 21a, 21b are interconnected by a stiffening spacer 22.
  • Each flange 19a, 19b is fixed at one end of the rotation shaft 18 of the auxiliary roller 17 in a zone of said flange 19a, 19b offset in the longitudinal direction D1 and / or the transverse direction D3 relative to the mounting zone at the end. frame-holder.
  • the mounting area to the carrier frame corresponds to the junction area with the pivot shaft 20.
  • the pivot shaft 20 and the rotation shaft 18 are parallel and offset in any plane including the longitudinal direction D1 and the transverse direction D3.
  • the pivoting movement of the flanges 19a, 19b causes a displacement of the rotation shaft 18 (and therefore of the auxiliary roller 17) in a rotation centered around the axis of pivoting of the flanges 19a, 19b and an angle equal to the pivot angle of the flanges 19a, 19b.
  • This displacement of the auxiliary roller 17 is therefore practiced in the transverse direction D3 and / or in the longitudinal direction D1.
  • Such movement of the auxiliary roller 17 makes it possible to move it between a working position ( Figures 3 and 4 ) and a waiting position ( figure 1 ) passing through an intermediate position ( figure 2 ).
  • the lifting means further comprise means for moving the flanges 19a, 19b.
  • the means for setting in motion can be of any appropriate type (mechanical, electrical, hydraulic, pneumatic, manual ).
  • the moving means are constituted by an actuating lever 23 fixed at one of its ends to one end of the pivot shaft 20.
  • the actuating lever 23 and the Pivot shaft 20 are perpendicular to each other.
  • the control of the operating lever 23 is manual.
  • a reduction device can be interposed between the actuating lever 23 and the pivot shaft 20.
  • the lifting means of the rotation shaft 18 are thus made, in this example, by the flanges 19a, 19b and by the mounting ensuring the pivoting of the flanges 19a, 19b (pivot shaft 20 pivotally mounted on the carrier frame and means for moving the flanges 19a, 19b).
  • the auxiliary roller 17 When the auxiliary roller 17 is in the waiting position ( figure 1 ), the cable 11 bears on the main rotary rollers 10a, 10b of the balance to ensure its guidance during its travel.
  • the support and guide rocker being of lower type in this example, the support of the cable 11 on the rollers 10a, 10b consists of a cable support 11 by the rollers 10a, 10b.
  • the free movement of the auxiliary roller 17 in the lateral direction D2 of the rocker allows the operating agent to laterally position the auxiliary roller 17 approximately to the vertical of the cable 11 (below the cable 11 in this example) when the latter it is still engaged in the main rollers 10a, 10b.
  • the spacing of the cable 11 consists of a lifting of the cable 11 from the rollers 10a, 10b.
  • This clearance of the rollers 10a, 10b involves the removal of any twisting torque possibly applied to the cable 11, before separation, because of a longitudinal misalignment of the main rollers 10a, 10b.
  • the at least transverse movement of the auxiliary roller 17 to the working position can therefore be accompanied by a lateral displacement in the lateral direction D2.
  • This lateral displacement can, on the one hand, come from the automatic compensation of a lateral offset that may exist, before separation, between the auxiliary roller 17 and the vertical plane passing through the cable. 11 still engaged in the main rollers 10a, 10b. Such lateral offset may in particular be due to poor positioning of the auxiliary roller 17 from the operating agent.
  • This lateral displacement of the auxiliary roller 17 can also, and mainly, result from the automatic return of the cable 11 to its natural configuration after the release of a twisting torque when such torque was fortuitously applied to the cable 11 before separation.
  • the natural configuration of the cable 11 here corresponds to the spatial configuration of the cable 11 when it is resting on the rockers of the two directly adjacent upstream and downstream towers.
  • the natural configuration is therefore imposed by the alignment of the rockers of the two directly adjacent upstream and downstream pylons.
  • the cable 11 When the cable 11 is disengaged from the main rollers 10a, 10b by the auxiliary roller 17, and therefore free of twisting torque, the cable 11 is in its natural configuration. In this configuration of the cable 11, it is then sufficient for the operating agent to adjust the lateral positioning of the main rollers 10a, 10b using conventional means of the balance so that each of the main rockers 10a, 10b is positioned at the vertical of the cable 11. This lateral adjustment completed, all the main rollers 10a, 10b of the balance have a longitudinal alignment which coincides with the direction followed by the cable 11 when it is in its natural configuration. The operating agent then controls the passage of the auxiliary roller 17 to the waiting position.
  • the control of the second displacement is performed using the actuating lever 23 while the first displacement is due to the freedom of translation of the spacer element (auxiliary roller 17) in the lateral direction D2.
  • connection means between the spacer element and the carrier frame are formed by the rotation shaft 18, by its lifting means, and by the support plates 21a, 21b. Fixing the support plates 21a, 21b to the primary beam 12 may be removable. In the example shown, the fixing of the support plates 21a, 21b (which are interconnected by the stiffness spacer 22) on the primary beam 12 is carried out using a clamping clamp 24 secured to of the support plate 21b disposed on the side of the secondary beam 13. The clamp 24 is able to exert a radial clamping of the pivot axis 14.
  • the clamp 24 comprises a U-shaped clamping member whose branches are threaded at their ends. Each of the threads cooperates with a screw nut.
  • the axis pivoting member 14 passes through the U-shaped clamping member, the branches of which pass through the support plate 21b through passage orifices formed in the support plate 21b.
  • Each screw nut is screwed onto the part of a branch of the clamping element which protrudes from the through holes of the support plate 21b.
  • the connecting means may include a locking mechanism (not shown) capable of blocking the spacer element in the working position.
  • the locking mechanism is advantageously automatic locking and manual unlocking, for example through the use of a non-return ratchet device between the pivot shaft 20 and the chassis-carrier balance.
  • the adjustment device 16 can be modified and adapted to allow the adjustment of a higher type of pendulum which would be provided with compression and guide rollers.
  • the modifications made to the adjustment device 16 will be such that the spacer element will ensure in the working position a lowering of the cable 11 downwardly to automatically release the compression and guide rollers.
  • the spreading action performed by the spacer element in the working position is practiced by pressing against the cable 11 intended to cause a transverse displacement of the latter sufficient to automatically release the main rollers 10a, 10b.
  • the auxiliary roller 17 is mounted on the shaft 18 in a slide connection allowing only the translation movement in the lateral direction D2 and prohibiting the rotational movement around the shaft 18.
  • the spacer can take other form than a roller without departing from the scope of the invention.
  • the connecting means can be made in any appropriate manner since it ensures, independently of one another, a first free displacement of the spacer element in a lateral direction D2 of the balance, and a second displacement controlled at least in the transverse direction D3 of the pendulum.
  • the second displacement may implement a displacement of the spacer element only in the transverse direction D3, for example by means of a slide connection oriented in the transverse direction D3.

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  • Engineering & Computer Science (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Guides For Winding Or Rewinding, Or Guides For Filamentary Materials (AREA)
  • Transmission Devices (AREA)
EP08354028A 2007-06-04 2008-05-13 Dispositif mécanique de réglage d'un balancier d'appui et de guidage d'un câble aérien d'une installation de remontée mécanique Withdrawn EP2014532A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0703952A FR2916718B1 (fr) 2007-06-04 2007-06-04 Dispositif mecanique de reglage d'un balancier d'appui et de guidage d'un cable aerien d'une installation de remontee mecanique

Publications (1)

Publication Number Publication Date
EP2014532A1 true EP2014532A1 (fr) 2009-01-14

Family

ID=38740324

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08354028A Withdrawn EP2014532A1 (fr) 2007-06-04 2008-05-13 Dispositif mécanique de réglage d'un balancier d'appui et de guidage d'un câble aérien d'une installation de remontée mécanique

Country Status (4)

Country Link
US (1) US20080296096A1 (zh)
EP (1) EP2014532A1 (zh)
CN (1) CN101318612A (zh)
FR (1) FR2916718B1 (zh)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104860155A (zh) * 2015-04-07 2015-08-26 吴传涛 一种插接式导向轮组
GB2553568A (en) * 2016-09-09 2018-03-14 Bamford Excavators Ltd Pulley assembly
FR3057524B1 (fr) * 2016-10-17 2018-11-23 Poma Dispositif et procede de repositionnement du cable porteur d'une installation de transport par cable.
CN115367649B (zh) * 2022-09-23 2023-09-08 陕西陕煤铜川矿业有限公司 一种压绳轮装置及其使用方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129957A2 (en) * 1983-06-23 1985-01-02 Jan Krzysztof Kunczynski Sheave retention apparatus and method
US5597079A (en) * 1995-08-24 1997-01-28 Harnischfeger Corporation Directional indicating device for detecting improper orientation of a hoist lifting line
FR2838697A1 (fr) * 2002-04-23 2003-10-24 Gimar Montaz Mautino Train de galets destine a guider un cable de remontee mecanique

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0129957A2 (en) * 1983-06-23 1985-01-02 Jan Krzysztof Kunczynski Sheave retention apparatus and method
US5597079A (en) * 1995-08-24 1997-01-28 Harnischfeger Corporation Directional indicating device for detecting improper orientation of a hoist lifting line
FR2838697A1 (fr) * 2002-04-23 2003-10-24 Gimar Montaz Mautino Train de galets destine a guider un cable de remontee mecanique

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
OPLATKA G: "DIE RICHTRAUPE EIN GERAET ZUM AUSRICHTEN VON SEILFUEHRUNGSELEMENTEN UND ZUM VERMESSEN DES SCHRAEGLAUFWINKELS. ÖLA CHENILLE D'ALIGNEMENT UN APPAREIL PERMETTANT D'ALIGNER LES ELEMENTS DE GUIDAGE DES CABLES ET DE MESURER L'ANGLE DE DEVIATION DU CABLE", INTERNATIONALE SEILBAHN RUNDSCHAU. REVUE INTERNATIONALE DES TELEPHERIQUES, BOHMANN, WIEN, AT, no. 1, 1 February 1993 (1993-02-01), pages 5 - 7, XP000345580 *

Also Published As

Publication number Publication date
FR2916718B1 (fr) 2009-08-28
FR2916718A1 (fr) 2008-12-05
CN101318612A (zh) 2008-12-10
US20080296096A1 (en) 2008-12-04

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