EP2085283A1 - Hebevorrichtung eines Kabelabschnitts, die über ein Hebeelement mit zwei Greifbacken verfügt, die durch Verschieben zusammengesetzt werden - Google Patents

Hebevorrichtung eines Kabelabschnitts, die über ein Hebeelement mit zwei Greifbacken verfügt, die durch Verschieben zusammengesetzt werden Download PDF

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Publication number
EP2085283A1
EP2085283A1 EP08354092A EP08354092A EP2085283A1 EP 2085283 A1 EP2085283 A1 EP 2085283A1 EP 08354092 A EP08354092 A EP 08354092A EP 08354092 A EP08354092 A EP 08354092A EP 2085283 A1 EP2085283 A1 EP 2085283A1
Authority
EP
European Patent Office
Prior art keywords
upper shell
section
lifting
cable
shell
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Withdrawn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
EP08354092A
Other languages
English (en)
French (fr)
Inventor
Paul Brun
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 EP2085283A1 publication Critical patent/EP2085283A1/de
Withdrawn legal-status Critical Current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
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B61—RAILWAYS
    • B61B—RAILWAY SYSTEMS; EQUIPMENT THEREFOR NOT OTHERWISE PROVIDED FOR
    • B61B11/00—Ski lift, sleigh lift or like trackless systems with guided towing cables only
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F19/00—Hoisting, lifting, hauling or pushing, not otherwise provided for

Definitions

  • the invention relates to a device for lifting a cable section for a mechanical lift installation, comprising on the one hand a lifting element intended to be positioned in abutment against the cable and, on the other hand, means for displacing the cable. the lifting element in a first direction.
  • the lifting is often carried out using a clamping strap arranged in a closed loop around the cable section, with a lower elbow resting under the cable and an upper elbow closed on a fixed mooring member. cable so that the tightening of the strap will bring the bends closer together and lift the cable.
  • the lifting element is constituted by the lower elbow of the strap. Because of the small width of the strap, such a lifting element may cause a local crushing of the cable.
  • the object of the invention is to provide a device for lifting a cable section for a mechanical lift installation which overcomes the disadvantages of the prior art.
  • Such a socket-shaped lifting element makes it possible to reduce the risk of damage to the cable during lifting, given the elongated nature of the socket in the second direction, which corresponds to the direction of the cable in use. Indeed, this structural feature of the lifting element reduces the local pressure exerted on the cable section raised.
  • a sleeve obtained by a slide assembly of two shells is particularly simple, convenient and safe to use on site. The weight of the lifted cable is totally transmitted from the lower shell in which the cable rests to the upper shell moved by the displacement means at the guiding elements, for increased safety: the only function assigned to the locking means is to suppress any possibility of relative sliding between the shells.
  • the support bowl defines a curved groove on the opposite side to the upper shell.
  • a support bowl provides a substantially uniform distribution of the contact pressure between the raised section and the support bowl during lifting. This results in an additional limitation of the risk of damage to the cable.
  • the groove may be a portion of a surface of revolution having a generator constituted by an arc whose circle is substantially equal to that of the section to be lifted.
  • FIG. 1 to 4 an example of a lifting device 10 of a cable section for a mechanical lift installation is shown in application to the lifting of a fixed carrier cable 11 of said installation.
  • the cable 11 rests by gravity in supports 12 provided on a shoe 13 of the installation.
  • the lifting device 10 comprises a lifting element 14 intended to be positioned in abutment against the cable 11 in order to disengage it from the supports 12.
  • the lifting element 14 consists mainly of a lower shell 141 intended to carry a section of cable 11 during lifting and an upper shell 142 for overlapping the raised section of cable 11, and will be described in more detail below.
  • the device 10 also comprises a support structure 15 intended to bear on the shoe 13 for the lifting operation.
  • the support structure 15 consists mainly of two feet 151a, 151b each resting on the shoe 13.
  • Each foot 151a, 151b has a rectangular frame shape and stands parallel to the other foot 151a, 151b.
  • the feet 151a, 151b While the lower edges of the feet 151a, 151b are intended to come into contact with the shoe 13, their upper edges support a plate 152 arranged for example perpendicularly to the main planes of the feet 151a, 151b.
  • the plate 152 is secured to the feet 151a, 151b by any means of attachment, for example by welding as shown in the weld seams 153a, 153b.
  • the lifting element 14 is connected to the supporting structure 15 by means of a jack 16, for example of hydraulic or pneumatic type, comprising mainly a cylindrical body 161, a piston 162 mounted in translation in the body 161 in a first direction D1 of the device 10, and a transmission element 163 integral with the piston 162.
  • a jack 161 for example of hydraulic or pneumatic type, comprising mainly a cylindrical body 161, a piston 162 mounted in translation in the body 161 in a first direction D1 of the device 10, and a transmission element 163 integral with the piston 162.
  • the cylindrical body 161 is fixed to the plate 152 on the opposite side to the feet 151a, 151b, in a configuration such that the direction D1 is perpendicular to the main plane of the plate 152.
  • the transmission element 163 comprises a sleeve 1632 arranged according to D1, whose outer face is integral with the piston 162, and within which extends a rod 1631 integral, through, and thus opening at both ends of the sleeve 1632.
  • the rod 1631 therefore has a lower free end and an upper free end, all two rods disposed outside the sleeve 1632.
  • the rod 1631 opens from the lower end of the body 161 through a central opening 1521 of the plate 152.
  • the lower free end of the rod 1631 is threaded and screwed into a threaded bore 1421 made in the upper shell 142 of the lifting element 14, to ensure the maintenance of the lifting element 14 below the plate 152 between the feet 151 a, 151 b.
  • the upper free end of the rod 1631 is also threaded so as to receive at least one nut 1633 serving as an axial stop for the rod 1631 in its translation movement relative to the sleeve 1632.
  • the gravity applied to the cable 11, to the lifting element 14 and the rod 1631 maintains the nut 1633 bearing against the upper end of the sleeve 1632 and the rod 1631 is secured to the sleeve 1632 in this manner.
  • the sleeve 1632 and the upper end of the rod 1631 open from the upper end of the body 161 to ensure positioning of the nut 1633 outside the body 161 to allow manual access. .
  • a second nut 1633 can be attached against a first to form a lock nut.
  • the piston 162 is able to move together the transmission assembly 163 and the lifting element 14 linearly in the direction D1.
  • the external unit regulates the supply of fluid (air or oil depending on the type of cylinder 16) of at least one of the two chambers defined axially by the piston 162 inside the body 161.
  • fluid air or oil depending on the type of cylinder 16
  • only one of the two chambers is used as compression chamber 17, while the return to the natural configuration of cylinder 16 is realized by a return spring 18 disposed in the opposite chamber with respect to the piston 162.
  • the transfer of the pressurized fluid from the external unit to the inside of the compression chamber 17, as well as its exhaust, are carried out successively with the aid of a feeding means 19
  • the jack 16 associated with the external unit thus constitute means of displacement of the lifting element 14 in the direction D1 and the threaded bore 1421 forms means of connection to the displacement means, in particular at the lower end of the Rod 1631.
  • the lifting element 14 is constituted by a sleeve, generally cylindrical in shape, having a main axis of revolution oriented in a second direction D2 perpendicular to the first direction D1.
  • the bushing comprises a lower shell 141 and an upper shell 142.
  • the bushing is intended to be positioned around the cable section 11 that the lifting device 10 plans to lift, so that the second direction D2 coincides with the longitudinal direction of the cable 11 and that the first direction D1 corresponds to a radial direction of the cable 11 having at least one vertical component.
  • the displacement means make it possible to selectively move the lifting element 14 between a low position ( figure 1 ) in which the sleeve surrounds the cable section 11 while it still rests on the supports 12, and a high position ( figure 2 ) where the cable section 11 is disengaged from the supports 12.
  • the movement of the lifting element 14 from one position to the other is done linearly in the direction D1.
  • the lower shell 141 comprises a support cup 1411 intended to be positioned in abutment under the cable section 11 that the lifting device 10 must raise, in order to transmit to it the lifting forces during the passage of the low position. at the high position.
  • the support bowl 1411 defines a curved groove of the opposite side to the upper shell 142 to provide a substantially uniform distribution of the contact pressure between the raised section and the support cup 1411 during lifting.
  • the groove is a surface portion of revolution having a generator constituted by an arc whose circle is substantially equal to that of the section to be lifted.
  • the radius separating the axis of the surface of revolution and the generator is noted R on the figure 4 and its value is substantially equal to 400 mm.
  • the ends of the groove, considered in the direction D2 have a bevel on the opposite side to the upper shell 142.
  • the lower shell 141 has a generally tubular shape with a semi-cylindrical outer surface, and which internally delimits the support cup 1411 described above.
  • the outer surface of the lower shell 141 thus comprises two parallel free edges 1412a, 1412b, directed in the direction D2 and intended to allow interlocking with the upper shell 142.
  • Each edge 1412a, 1412b comprises for this purpose a groove 1413a, 1413b along the entire length of the lower shell 141 in the direction D2.
  • Each groove 1413a, 1413b has a rectangular section and opens radially on the outside of the lower shell 141.
  • Each groove 1413a, 1413b delimits with the end 1414a, 1414b of the edge 1412a, 1412b corresponding a fastening flange 1415a, 1415b.
  • Each attachment flange 1415a, 1415b forms a projection along the entire length in the direction D2 of the lower shell 141.
  • the upper shell 142 has an overlap cup 1422 of the cable section 11 to be lifted, ensuring its retention within the support cup 1411 during the passage of the lifting element 14 from one position to the other.
  • the upper shell 142 has a generally tubular shape with a semi-cylindrical outer surface, and which delimits internally an overlapping bowl 1422 of hemicylindrical form also.
  • the overlap cup 1422 of the upper shell 142 thus has two parallel free edges 1423a, 1423b, directed in the direction D2 and intended to allow interlocking with the lower shell 142.
  • Each free edge 1423a, 1423b has a hooking groove 1424a, 1424b over the entire length of the upper shell 142 in the direction D2 and open on the overlap bowl 1422.
  • the upper shell 142 has two hooking grooves 1424a, 1424b parallel and oriented along the main axis of the bushing, coinciding with the second direction D2, and in which can engage the flanges d corresponding clip 1415a, 1415b of the lower bowl 141 to effect an assembly of the two shells 141, 142 by sliding in the second direction D2.
  • the two shells 141, 142 and comprise complementary guide elements for such a sliding assembly, the guide elements being constituted by the attachment grooves 1424a, 1424b and by the attachment flanges 1415a, 1415b.
  • the free edges 1423a, 1423b of the overlap cup 1422 of the upper shell 142 each overlap a corresponding free edge 1412a, 1412b of the outer surface of the lower shell 141.
  • the attachment grooves would be carried by the outer surface of the upper shell 142 while the attachment flanges would be arranged protruding from the support bowl.
  • the free edges of the support bowl of the lower shell would each overlap a corresponding free edge of the outer surface of the upper shell 141.
  • any type of guide elements complementary sliding assuring the shells 141, 142 together in the direction D2 can be envisaged without departing from the scope of the invention.
  • each fastening flange 1415a, 1415b delimits a bearing surface coming into contact with a support surface formed by a wall of the attachment groove 1424a, 1424b associated.
  • Such an arrangement makes it possible to transmit the entire weight of the cable 11 raised to the upper shell 142 moved by the displacement means by means of the only guide elements.
  • complementary guide elements such that the bearing surfaces and the support surfaces constitute a dovetail-type assembly, having the advantage that the transmission of the efforts of the lower shell 141 to the upper shell 142 causes an automatic tightening of the two shells which eliminates any risk of inadvertent disconnection.
  • the lifting device 10 comprises locking means blocking the sliding between the two upper shells 142 and lower 141 after their assembly by sliding.
  • the locking means are constituted by four bolts 20 each having a threaded body 201 passing through the upper shell 142 through a passage 1425 arranged in the direction D1 to be screwed into a tapping 1416 provided in the lower shell 141 in alignment with passage 1425 after assembly.
  • the bearing head 202 of each bolt 20 is housed in a countersink 1426 provided in the outer surface of the upper shell 142 to bear against the bottom of the countersink 1426.
  • the spatial orientation of the passages (and therefore bolts 20) can be arbitrary.
  • the number of bolts 20 can be variable, greater than or equal to one. More generally, any suitable locking means may be envisaged, for example a ratchet system.
  • displacement means comprise a jack 16 in the example of lifting device 10 previously described, any other type of moving means can be provided instead of the jack 16.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Transportation (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Structural Engineering (AREA)
  • Load-Engaging Elements For Cranes (AREA)
  • Bridges Or Land Bridges (AREA)
  • Prostheses (AREA)
  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP08354092A 2008-01-30 2008-12-10 Hebevorrichtung eines Kabelabschnitts, die über ein Hebeelement mit zwei Greifbacken verfügt, die durch Verschieben zusammengesetzt werden Withdrawn EP2085283A1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR0800500A FR2926867B1 (fr) 2008-01-30 2008-01-30 Dispositif de levage d'un troncon de cable ayant un element de soulevement a deux coquilles assemblees par coulissement

Publications (1)

Publication Number Publication Date
EP2085283A1 true EP2085283A1 (de) 2009-08-05

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Family Applications (1)

Application Number Title Priority Date Filing Date
EP08354092A Withdrawn EP2085283A1 (de) 2008-01-30 2008-12-10 Hebevorrichtung eines Kabelabschnitts, die über ein Hebeelement mit zwei Greifbacken verfügt, die durch Verschieben zusammengesetzt werden

Country Status (7)

Country Link
US (1) US20090189131A1 (de)
EP (1) EP2085283A1 (de)
JP (1) JP2009179479A (de)
KR (1) KR20090083855A (de)
CN (1) CN101497340A (de)
CA (1) CA2648211A1 (de)
FR (1) FR2926867B1 (de)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3057524B1 (fr) * 2016-10-17 2018-11-23 Poma Dispositif et procede de repositionnement du cable porteur d'une installation de transport par cable.
CN118023878B (zh) * 2024-03-24 2026-04-24 昆山恒荣泰机器人系统工程有限公司 一种气动元件组装装置及组装方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT317995B (de) * 1971-08-30 1974-09-25 Manfred Ritter Sielabhebevorrichtung zum Abheden von Förderseilen aus in einer Rollenbatterie gelagerten Umlaufrollen von Förderanlagen
FR2572699A1 (fr) * 1984-11-08 1986-05-09 Mangard Herve Outil de demontage de cable sur pylones de remontees mecaniques

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT317995B (de) * 1971-08-30 1974-09-25 Manfred Ritter Sielabhebevorrichtung zum Abheden von Förderseilen aus in einer Rollenbatterie gelagerten Umlaufrollen von Förderanlagen
FR2572699A1 (fr) * 1984-11-08 1986-05-09 Mangard Herve Outil de demontage de cable sur pylones de remontees mecaniques

Also Published As

Publication number Publication date
FR2926867B1 (fr) 2010-03-26
KR20090083855A (ko) 2009-08-04
US20090189131A1 (en) 2009-07-30
CA2648211A1 (en) 2009-07-30
CN101497340A (zh) 2009-08-05
FR2926867A1 (fr) 2009-07-31
JP2009179479A (ja) 2009-08-13

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