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EP2451735B1 - Dispositif de mise en contact - Google Patents

Dispositif de mise en contact Download PDF

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Publication number
EP2451735B1
EP2451735B1 EP10729852.3A EP10729852A EP2451735B1 EP 2451735 B1 EP2451735 B1 EP 2451735B1 EP 10729852 A EP10729852 A EP 10729852A EP 2451735 B1 EP2451735 B1 EP 2451735B1
Authority
EP
European Patent Office
Prior art keywords
contact
suspension means
housing
making apparatus
tension member
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.)
Not-in-force
Application number
EP10729852.3A
Other languages
German (de)
English (en)
Other versions
EP2451735A1 (fr
Inventor
Hans Kocher
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.)
Inventio AG
Original Assignee
Inventio AG
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 Inventio AG filed Critical Inventio AG
Priority to EP10729852.3A priority Critical patent/EP2451735B1/fr
Publication of EP2451735A1 publication Critical patent/EP2451735A1/fr
Application granted granted Critical
Publication of EP2451735B1 publication Critical patent/EP2451735B1/fr
Not-in-force legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/06—Arrangements of ropes or cables
    • B66B7/062—Belts
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B7/00—Other common features of elevators
    • B66B7/12—Checking, lubricating, or cleaning means for ropes, cables or guides
    • B66B7/1207—Checking means
    • B66B7/1215—Checking means specially adapted for ropes or cables
    • B66B7/1223—Checking means specially adapted for ropes or cables by analysing electric variables
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/50—Fixed connections
    • H01R12/59—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/592—Fixed connections for flexible printed circuits, flat or ribbon cables or like structures connections to contact elements

Definitions

  • the invention relates to a contacting device for monitoring a suspension in an elevator system.
  • belt-shaped support means are used. These support means generally comprise a plurality of steel wires existing tensile carriers, which absorb the tensile forces to be absorbed by the support means.
  • the tension members are generally surrounded by a plastic sheath.
  • the jacket protects the tension members, for example against mechanical wear, because the support means are often guided over deflection points, in particular rollers. In addition, the jacket improves the traction of the suspension element on deflection or drive rollers, and fixed the arrangement of the tension members with each other.
  • the support means are within a conveyor a safety-critical component, since their failure or breakage can lead to a fall of the material to be conveyed. This can lead to considerable property damage and personal injury. For this reason, test units are used in conveyors, which in particular check the mechanical condition of the tension members. Damage to the forces absorbing tension members should be able to be detected early, so that the support means can be replaced in case of damage to prevent failure of the conveyor.
  • the tension members are surrounded by the electrically insulating jacket made of plastic.
  • a current is passed with the aid of the contact element through the tension members, which serves as a test current to determine the state of the tension members.
  • other test methods that do not work with electricity, such. B. ultrasound, into consideration.
  • the DE 39 34 654 A1 shows a generic support means.
  • the ends of the tension members are connected in pairs conductive with a bridge part, so that the tension members of the support means are electrically connected in series.
  • the tensile carriers of the suspension element are connected via an ammeter to a voltage source, so that by means of the test current, which is passed through all the tension members in series due to the electrical circuit, the state of the tension members can be assessed.
  • the DE 2 330 038 shows a system for contacting a flat cable.
  • the flat cable is clamped by an upper and a lower clamping piece.
  • Recesses are arranged on the lower clamping piece, can be performed by trained on a contact carrier lancing teeth.
  • the lancing teeth pierce through the sheath of the flat cable and thus come into contact with the strands.
  • the contacting of the strands using the lancing teeth is thus perpendicular to a longitudinal axis of the strands. Disadvantageously, it is necessary in this contacting that the lancing tines the coat of Punched through.
  • the puncture of the shell by the lancing teeth can have the consequence that the lancing teeth deviate from the intended lancing direction when piercing the shell and thereby no contact with the strand can be produced.
  • the lancing prongs may possibly also contact other unwanted strands or even no strands when the mantle is penetrated.
  • the WO 2005/095251 , the WO 2005/094249 A2 and the WO 2006/127059 A2 show a system for contacting a support means, in which the contact elements perpendicular to a longitudinal axis of the tension members first pierce the jacket of the suspension element and then penetrate into the tension members. Disadvantageously, the contact elements can miss the tension members due to the required piercing process through the jacket.
  • An object of the present invention is therefore to provide a contacting device for contacting a suspension means, in which the tension members of the support belt can be reliably and accurately contacted by a contact element in order to be able to determine a state of the tension members.
  • the contacting device should be easy to use and reliable and have low production costs.
  • the contacting device for electrical contacting of tension members of a suspension in an elevator system.
  • the contacting device comprises a housing with a recess in which a portion of the Supporting means is receivable, so that the housing encloses this portion of the support means substantially.
  • the contacting device comprises at least one contact element, which is arranged in the recess of the housing.
  • the contacting device comprises at least one lifting element, which is supported by the housing. The at least one lifting element can be guided by the support means in such a way that at least one tension member can be lifted out of a sheathing of the suspension element and thereby be brought into electrical contact with the contact element.
  • an elevator installation with a cabin and a counterweight wherein the cabin and the counterweight can be moved by means of suspension elements, which can be driven by a drive, and wherein a contacting device is arranged on the suspension element as described above.
  • a method for the electrical contacting of tension members in a suspension element of an elevator installation comprises arranging a housing on the suspension element so that a portion of the suspension element is substantially enclosed by the housing.
  • the method comprises lifting at least one tension member from its original position by means of at least one lifting element, which is supported by the housing, so that an electrical contact between the at least one tension member and a contact element which is arranged in the housing, is produced.
  • the schematic and exemplary elevator system 40 includes at least one elevator car 41, a counterweight 42 and a suspension element 1 and a traction sheave 43 with associated drive motor 44.
  • the traction sheave 43 drives the suspension element 1 and thus moves the elevator car 41 and the counterweight 42 against each other.
  • the drive motor 44 is controlled by an elevator control 45.
  • the cabin 41 is designed to receive people and / or goods and to transport between floors of a building. Cabin 41 and counterweight 42 are guided along guides. In the example, the cabin 41 and the counterweight 42 are each suspended on support rollers 46.
  • the support means 1 is fastened to a first support means fastening device 47, and then first guided around the support roller 46 of the counterweight. Then, the support means 1 is placed over the traction sheave 43, guided around the support roller 46 of the car 41, and finally connected by a second support means fastening device 47 with a fixed point.
  • the wrap factor is 2: 1.
  • the support means 1 is in this case fastened by means of a first support means attachment 47 in the building. It is further guided over a support roller 46 of the cab 41 to the traction sheave 43 and runs from there to the counterweight 42 where it in turn by means of a counterweight-side support roller 46 deflected and guided to a second support means attachment 47.
  • the suspension element fastenings 47 introduce tensile forces of the suspension element 1 into the building.
  • a loose end 1.1 of the suspension element 1 is provided with the contacting device 2 for the temporary or permanent contacting of the suspension element 1.
  • a contacting device 2 is arranged at both ends of the support means 1.
  • the Tragstoffenden 1.1 are no longer burdened by the tensile force in the suspension element 1, since this tensile force is already passed through the support means fasteners 47 into the building.
  • the elevator installation 40 shown is exemplary. Other cap factors and arrangements are possible.
  • the contacting device 2 for contacting the support means 1 is then arranged according to the placement of the support means fastenings 47.
  • FIG. 2 shows an exemplary contacting device 2, which is arranged on a support means 1.
  • the contacting device 2 is arranged at or near one end 1.1 of the suspension element 1.
  • the contacting device 2 shown consists in one embodiment of a first housing part 3 and a second housing part 4, which are held together by housing fasteners 10. Due to the two-piece arrangement of the contacting device 2, the assembly of the contacting device 2 is simplified, in particular when the contacting device 2 on is mounted away from one end 1.1 of the support means 1.
  • lifting elements 7 are formed, which are supported by the first housing part 3.
  • the lifting elements 7 are arranged in a first row 8 and in a second row 9. As a result, more space is available for each lifting element 7, so that, for example, lifting elements with larger heads can be used.
  • FIG. 3a shows a section along the axis YY of the contacting device 2 and the support means 1 from FIG. 2
  • FIG. 3b shows the same contacting device 2 is shown, but without lifting elements 7 and without support means 1 and in a spatial representation.
  • Figure 3c is the contacting device 2 of FIG. 3b shown, but in two-dimensional representation and with unused lifting elements. 7
  • the housing 3, 4 of the contacting device 2 is preferably made of rigid material such as plastic, metal reinforced plastic, or metal. Because the lifting elements 7, which exert large forces on the support means 1, are supported by the housing 3, 4, the housing 3, 4 is preferably made robust.
  • the first housing part 3 and the second housing part 4 are preferably formed such that a recess 14 is formed therebetween, as in FIG Figure 3c shown.
  • This recess 14 is dimensioned such that the support means 1 takes place in it and is received at its upper edge flush from the first housing part 3.
  • the second Housing part 4 has in the illustrated embodiment projections 5, which support the support means 1 and hold in its intended position in the recess 14.
  • the number of recesses 19 preferably corresponds to the number of lifting elements 7.
  • FIGS. 3a to 3c is a contacting device 2 for a support means 1 with twelve tension members 11 shown. Accordingly, the second housing part 4 at a height of the first row 8 (see FIG. 2 ) has six recesses 19, and adds another six recesses at a height of the second row 9 (not shown).
  • a projection 5 is arranged in each case between two recesses 19.
  • the projections 5, for example, a trapezoidal cross-section and a support surface 18 for the support means 1 on.
  • the support surface 18 serves to support the support means 1, which is pressed by the lifting elements 7 against the recesses 19.
  • the support surfaces 18 hold the support means 1 in its intended position in the contacting device 2, while the lifting elements 7 lift individual tension members 11 out of the jacket 12 of the suspension element and into the recesses 19.
  • a contact element 6 is arranged in each case.
  • the contact elements 6 and the recesses 19 are preferably dimensioned such that a tension member 11 is pressed flush with a fully inserted lifting element 7 against a contact element 6.
  • the Contact elements 6 be designed resiliently.
  • a spring between the contact element 6 and the second housing part 4 are arranged, or the contact element 6 itself may be formed as a resilient element.
  • the contact elements 6 are preferably electrically connected to an evaluation unit (not shown). In this case, each contact element 6 can be contacted, or only individual, for example, only those contact elements 6, which are in electrical contact with the outermost tension members 11 of the support means 1. If not all contact elements 6 are contacted, they can be electrically interconnected. By bridging connections between the tension members 11 of the suspension element 1, a plurality of tension members 11 can be combined to form an electrical circuit, which reduces the number of measuring operations required.
  • the lifting elements 7 are formed in the illustrated embodiment as screws. But they can also be designed differently, for example as rivets. In addition, the lifting elements 7 may be integrated in the housing 3, 4 of the contacting device 2, or as in the illustrated embodiment be designed as separate elements, which are connected at the intended location with the housing 3, 4.
  • the lifting elements 7 consist in the illustrated embodiment of a bolt 16 and a screw head 15.
  • the bolt 16 is dimensioned such that it fits into the openings 17 of the housing 3, 4.
  • the openings 17 preferably have a thread into which the screw-like lifting elements 7 can be screwed.
  • the lifting elements 7 are preferably made of electrically non-conductive material. As a result, the lifting element 7 does not connect two adjacent tension members 11 with each other in an electrically conductive manner. An electrical bridging of two adjacent tension members 11 would possibly lead to incorrect conclusions in the evaluation of the signal.
  • the lifting elements 7 may also be made of an electrically conductive material, which is coated with an electrically non-conductive layer. In a further embodiment, only the lateral part of the lifting elements 7 is coated with electrically non-conductive material, while the head and or with the tension members 11 coming into contact foot surface are formed of electrically conductive material.
  • the fastening element 10 holds the first housing part 3 and the second housing part 4 together, so that the first housing part 3 and the second housing part 4 are releasably connected to each other.
  • fasteners 10 for example, screws and corresponding threads may be provided, or other attachment mechanisms such as a clip system with a male and a female part.
  • the housing 3, 4 of the contacting device 2 may also be integrally formed. In this case, the support means 1 must be guided through the recess 14 in order to arrange the contacting device 2 at a predetermined location on the support means 1.
  • FIGS. 4 and 5 a further embodiment of the contacting device 2 is exemplified.
  • an exemplary contacting device 2 is shown with loaded suspension means 1
  • in FIG. 5 is the contacting device 2 from FIG. 4 shown along the section line XX.
  • a respective lifting element 7 lifts two adjacent tension members 11 out of the casing 12 of the suspension element 1.
  • the two adjacent tension members 11 are lifted or pushed together into a recess in the recess.
  • a contact element 6 is arranged in each recess.
  • the contact elements 6 of this embodiment are wider than the contact elements 6 of the embodiment in FIGS FIGS. 3a to 3c , so that the two adjacent tension members 11 can be brought into electrical contact with the same contact element 6.
  • the number of lifting elements 7 corresponds to half the number of tensile carriers 11 of the suspension element 1.
  • the lifting elements 7 are preferably arranged in a first row 8 and a second row 9 on the first housing part 3, so that more space is available for each lifting element.
  • FIG. 1 schematically illustrated elevator installation 40, for example, a contacting device 2 as those in FIG. 2 and a contacting device 2 like those in FIG FIG. 4 be used. Because the tension members 11 are connected to one another at one end 1.1 of the suspension element 1 by the contacting device 2 FIG. 4 , is on only one side of the support means 1 a tapping the Contact elements 6 necessary. There are two adjacent tension members 11 combined to form an electrical circuit. Alternatively, more than two adjacent tension members 11 can be combined to form an electrical circuit, for example, 4, 6, 8, 10, or 12. In an odd number of tension members 11 in an electrical circuit at both ends of the support means 1, the contact elements 6 with be connected to other electrical and electronic elements.
  • a first housing part 3 and a second housing part 4 are arranged on each side of the support means 1.
  • the first housing part 3 and the second housing part 4 are releasably connected to each other.
  • screws and corresponding threads can be used for this purpose.
  • the lifting elements 7 are driven by the support means 1. If screws are used as lifting elements 7, the lifting elements 7 are screwed into the suspension element 1, so that the tension members 11 are lifted out of the shell 12 of the suspension element 1.
  • the detached from the support means 1 tension members 11 are raised so far or pushed out of the jacket 12 until an electrical contact between the tension members 11 and the associated contact elements 6 is made.
  • the helical lifting elements 7 may for example be designed such that at maximum attracted lifting element 7 a secure contact between the tension member 11 and the contact element 6 is made.
  • a voltage is applied, so that a test current flows through the tension members 11 and through the connected to a circle tension member 11 to determine the state of the tension members 11.
  • the electrical resistance in the tension members 11 is greater, which can be determined by an evaluation of the test current.

Landscapes

  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
  • Elevator Control (AREA)

Claims (15)

  1. Dispositif de mise en contact pour la mise en contact électrique de supports de traction d'un moyen de support dans une installation d'ascenseur, le dispositif de mise en contact comprenant :
    - un boîtier (3, 4) avec un évidement, dans lequel une portion du moyen de support (1) peut être reçue, de telle sorte que le boîtier (3, 4) entoure sensiblement cette portion du moyen de support (1) ; et
    - au moins un élément de contact (6), qui est disposé dans l'évidement du boîtier (3, 4) ;
    caractérisé en ce que le dispositif de mise en contact comprend
    - au moins un élément de levage (7), qui est supporté par le boîtier (3, 4) ;
    l'au moins un élément de levage (7) pouvant être guidé par le moyen de support (1) de telle sorte qu'au moins un support de traction (11) puisse être soulevé depuis une enveloppe (12) du moyen de support (1) et puisse de ce fait être amené en contact électrique avec l'élément de contact (6).
  2. Dispositif de mise en contact selon la revendication 1, dans lequel l'au moins un élément de levage (7) est réalisé sous forme de vis.
  3. Dispositif de mise en contact selon l'une quelconque des revendications précédentes, dans lequel l'au moins un élément de levage (7) est réalisé au moins sur une surface extérieure en un matériau non conducteur de l'électricité aux endroits qui peuvent venir en contact avec un support de traction (11) du moyen de support (1).
  4. Dispositif de mise en contact selon l'une quelconque des revendications précédentes, dans lequel le boîtier (3, 4) se compose d'une première partie de boîtier (3) et d'une deuxième partie de boîtier (4), la première partie de boîtier (3) et la deuxième partie de boîtier (4) pouvant être connectées l'une à l'autre de manière détachable.
  5. Dispositif de mise en contact selon l'une quelconque des revendications précédentes, dans lequel des saillies (5) avec des surfaces d'appui (18) sont réalisées sur le boîtier (3, 4), lesquelles saillies pénètrent dans l'évidement, de telle sorte que le moyen de support (1) puisse être supporté par les surfaces d'appui (18) et de telle sorte qu'un support de traction (11) puisse être reçu à chaque fois entre deux saillies (5).
  6. Dispositif de mise en contact selon l'une quelconque des revendications précédentes, dans lequel un nombre des éléments de levage (7) correspond à un nombre des supports de traction (11), et/ou dans lequel les éléments de levage (7) sont disposés dans une première rangée (8) et une deuxième rangée (9) dans le boîtier (3, 4).
  7. Dispositif de mise en contact selon l'une quelconque des revendications 1 à 5, dans lequel un nombre des éléments de levage (7) correspond à la moitié du nombre des supports de traction (11), et/ou dans lequel à chaque fois deux supports de traction adjacents (11) peuvent être soulevés depuis l'enveloppe (12) du moyen de support (1) par seulement un élément de levage (7).
  8. Dispositif de mise en contact selon la revendication 7, dans lequel deux supports de traction adjacents (11) peuvent être connectés électriquement l'un à l'autre par le biais d'un élément de contact (6).
  9. Installation d'ascenseur comprenant une cabine (41) et un contrepoids (42), la cabine (41) et le contrepoids (42) pouvant être déplacés au moyen de moyens de support (1), qui peuvent être entraînés par un entraînement (44), et un dispositif de mise en contact (2) selon l'une quelconque des revendications 1 à 8 étant disposé sur le moyen de support (1).
  10. Installation d'ascenseur selon la revendication 9, dans lequel un dispositif de mise en contact respectif (2) est à chaque fois disposé entre un dispositif de fixation de moyen de support (47) et une extrémité de moyen de support (1.1), l'un des deux dispositifs de mise en contact (2) reliant au moins deux supports de traction (11) électriquement l'un à l'autre, et l'autre dispositif de mise en contact (2) étant connecté à une unité d'analyse.
  11. Procédé de mise en contact électrique de supports de traction dans un moyen de support d'une installation d'ascenseur, le procédé comprenant l'étape consistant à :
    - agencer un boîtier (3, 4) sur le moyen de support (1), de telle sorte qu'une portion du moyen de support (1) soit entourée sensiblement par le boîtier (3, 4) ;
    caractérisé en ce que le procédé présente en outre l'étape consistant à :
    - soulever au moins un support de traction (11) de sa position d'origine au moyen d'au moins un élément de levage (7) qui est supporté par le boîtier (3, 4), de telle sorte qu'un contact électrique entre l'au moins un support de traction (11) et un élément de contact (6) disposé dans le boîtier (3, 4) soit établi.
  12. Procédé selon la revendication 11, dans lequel l'au moins un élément de levage (7) est vissé dans le moyen de support (1).
  13. Procédé selon l'une quelconque des revendications 11 ou 12, dans lequel, lors du soulèvement de l'au moins un support de traction (11) de sa position d'origine, cet au moins un support de traction (11) est détaché d'une enveloppe (12) du moyen de support (1).
  14. Procédé selon l'une quelconque des revendications 11 à 13, dans lequel chaque support de traction (11) du moyen de support (1) est à chaque fois mis en contact électrique avec un élément de contact (6) à proximité d'une extrémité de moyen de support (1.1), de telle sorte que chaque support de traction (11) soit mis en contact par deux éléments de contact (6) qui appartiennent à des dispositifs de mise en contact différents (2).
  15. Procédé selon l'une quelconque des revendications 11 à 14, dans lequel, après l'établissement d'un contact électrique entre au moins un support de traction (11) et un élément de contact (6), une tension est appliquée, de telle sorte qu'un courant de contrôle s'écoule à travers au moins un support de traction (11).
EP10729852.3A 2009-07-06 2010-06-30 Dispositif de mise en contact Not-in-force EP2451735B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP10729852.3A EP2451735B1 (fr) 2009-07-06 2010-06-30 Dispositif de mise en contact

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
EP09164692 2009-07-06
PCT/EP2010/059310 WO2011003790A1 (fr) 2009-07-06 2010-06-30 Dispositif de mise en contact
EP10729852.3A EP2451735B1 (fr) 2009-07-06 2010-06-30 Dispositif de mise en contact

Publications (2)

Publication Number Publication Date
EP2451735A1 EP2451735A1 (fr) 2012-05-16
EP2451735B1 true EP2451735B1 (fr) 2014-02-26

Family

ID=41256020

Family Applications (1)

Application Number Title Priority Date Filing Date
EP10729852.3A Not-in-force EP2451735B1 (fr) 2009-07-06 2010-06-30 Dispositif de mise en contact

Country Status (2)

Country Link
EP (1) EP2451735B1 (fr)
WO (1) WO2011003790A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU2012350955B2 (en) 2011-12-16 2017-08-10 Inventio Ag System for making electrical contact with tension members in load-bearing means
WO2014064022A1 (fr) 2012-10-22 2014-05-01 Inventio Ag Surveillance des moyens de suspension dans des installations d'ascenseurs
US20190345004A1 (en) * 2017-01-31 2019-11-14 Inventio Ag Suspension member arrangement for an elevator and monitoring arrangement for monitoring a suspension member
CN114572794B (zh) * 2022-03-01 2023-08-22 宁波市特种设备检验研究院 一种智能电梯钢带断裂检测装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1730065B1 (fr) * 2004-03-16 2011-04-27 Otis Elevator Company Connecteur electrique et dispositif de retenue utilises dans des courroies elevatrices
BRPI0418638B1 (pt) * 2004-03-16 2017-02-14 Otis Elevator Co método, dispositivo e montagem dos componentes para monitorar condições do meio de sustentação da cabina do elevador

Also Published As

Publication number Publication date
EP2451735A1 (fr) 2012-05-16
WO2011003790A1 (fr) 2011-01-13

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