EP3348510A1 - Agencement de terminaison pour un câble d'un appareil de levage - Google Patents

Agencement de terminaison pour un câble d'un appareil de levage Download PDF

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Publication number
EP3348510A1
EP3348510A1 EP17151188.4A EP17151188A EP3348510A1 EP 3348510 A1 EP3348510 A1 EP 3348510A1 EP 17151188 A EP17151188 A EP 17151188A EP 3348510 A1 EP3348510 A1 EP 3348510A1
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EP
European Patent Office
Prior art keywords
rope
wedge component
terminating arrangement
wedge
component
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Withdrawn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
EP17151188.4A
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German (de)
English (en)
Inventor
Juha Helenius
Jani Renvall
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.)
Kone Corp
Original Assignee
Kone Corp
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 Kone Corp filed Critical Kone Corp
Priority to EP17151188.4A priority Critical patent/EP3348510A1/fr
Publication of EP3348510A1 publication Critical patent/EP3348510A1/fr
Withdrawn legal-status Critical Current

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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
    • B66B7/08—Arrangements of ropes or cables for connection to the cars or cages, e.g. couplings
    • B66B7/085—Belt termination devices
    • 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

Definitions

  • the invention relates to a terminating arrangement for a rope of a hoisting apparatus.
  • Said rope is preferably a hoisting rope which has electrically conductive properties.
  • Said hoisting apparatus is preferably an elevator for transporting passengers and/or goods.
  • Ropes of a hoisting apparatus typically include one or several load bearing members that are elongated in the longitudinal direction of the rope, each load bearing member forming a structure that continues unbroken throughout the length of the rope.
  • Load bearing members are the members of the rope which are able to bear together the load exerted on the rope in its longitudinal direction.
  • the load such as a weight suspended by the rope, causes tension on the load bearing member in the longitudinal direction of the rope, which tension can be transmitted by the load bearing member in question all the way from one end of the rope to the other end of the rope.
  • Ropes may further comprise non-bearing components, such as an elastic coating, which cannot transmit tension in the above described way.
  • monitoring of the condition of the load bearing members has been proposed.
  • the visual inspection of the internal tensile elements is generally not possible and hence the need arises for non-visual inspection.
  • the condition monitoring has been proposed to be arranged by monitoring electrical parameters of the load bearing members.
  • One known method for checking the condition of the tensile elements is the resistance-based inspection, which is based on a measure of the electrical resistance of the tensile elements. A change in the electrical resistance or a deviation from an expected value is interpreted as a damage of the tensile elements.
  • the object of the invention is to introduce a terminating arrangement for a rope of a hoisting apparatus, which provides a secure termination of a rope and provides a reliable electrical connection to a rope of a hoisting apparatus.
  • Advantageous embodiments are furthermore presented, inter alia, wherein qualitative information about the damage magnitude is provided.
  • a new terminating arrangement for a rope of a hoisting apparatus which rope comprises a non-conductive coating, and a plurality of adjacent conductive load bearing members for bearing the load exerted on the rope in longitudinal direction thereof embedded in the coating and extending parallel to each other and to the longitudinal direction of the hoisting rope, the coating forming the surface of the rope and extending between adjacent load bearing members thereby isolating them from each other
  • terminating arrangement comprises: an electrically resistive wedge element, said wedge element comprising a top wedge component and a bottom wedge component for clamping said wedge element to both sides of said hoisting rope, and at least one connection interface; so that upon clamping said top wedge component and said bottom wedge component together, said top wedge component and said bottom wedge component enable forming of an electrical connection between said conductive load bearing members of said rope and said at least one connection interface.
  • said at least one connection interface leads to a condition monitoring device.
  • said wedge element also comprises a hinge portion, said hinge portion allowing the turning of said top wedge component and the turning of said bottom wedge component.
  • said hinge portion is an elastic hinge portion.
  • said hinge portion is placed between the end of said top wedge component and the end of said bottom wedge component.
  • said hinge portion is placed between the side of said top wedge component and the side of said bottom wedge component.
  • said wedge element is made of non-metal material, said non-metal material preferably being fibre-reinforced plastic or plastic.
  • said conductive load bearing members are made of non-metal material.
  • said conductive load bearing members are made of composite material comprising electrically conducting reinforcing fibers in polymer matrix, said reinforcing fibers preferably being carbon fibers.
  • said rope is belt-shaped, i.e. larger in width direction than thickness direction.
  • said top wedge component and said bottom wedge component of said wedge element also comprise at least one fixing bolt and at least one nut, said at least one fixing bolt and at least one nut arranged to hold said top wedge component and said bottom wedge component together.
  • said top wedge component and said bottom wedge component of said wedge element also comprise one or more securing clips for securing said top wedge component and said bottom wedge component to said rope.
  • said terminating arrangement comprises a wedge housing so that said top wedge component and said bottom wedge component of said wedge element clamped on both sides of said rope are placed inside said wedge housing.
  • said terminating arrangement is connected to a condition monitoring device.
  • said terminating arrangement forwards information for quantifying the severity of the defect such as e.g. fiber damage to a condition monitoring device.
  • terminating arrangement in an arrangement for condition monitoring of a rope of a hoisting apparatus, which rope comprises a non-conductive coating, and a plurality of adjacent conductive load bearing members for bearing the load exerted on the rope in longitudinal direction thereof embedded in the coating and extending parallel to each other and to the longitudinal direction of the hoisting rope, the coating forming the surface of the rope and extending between adjacent load bearing members thereby isolating them from each other, in which terminating arrangement comprises: an electrically resistive wedge element, said wedge element comprising a top wedge component and a bottom wedge component for clamping said wedge element to both sides of said hoisting rope, and at least one connection interface; so that upon clamping said top wedge component and said bottom wedge component together, said top wedge component and said bottom wedge component enable forming of an electrical connection between said conductive load bearing members of said rope and said at least one connection interface.
  • said elevator comprises a terminating arrangement for a rope of said elevator, which rope comprises a non-conductive coating, and a plurality of adjacent conductive load bearing members for bearing the load exerted on the rope in longitudinal direction thereof embedded in the coating and extending parallel to each other and to the longitudinal direction of the hoisting rope, the coating forming the surface of the rope and extending between adjacent load bearing members thereby isolating them from each other,
  • terminating arrangement comprises: an electrically resistive wedge element, said wedge element comprising a top wedge component and a bottom wedge component for clamping said wedge element to both sides of said hoisting rope, and at least one connection interface; so that upon clamping said top wedge component and said bottom wedge component together, said top wedge component and said bottom wedge component enable forming of an electrical connection between said conductive load bearing members of said rope and said at least one connection interface.
  • FIG. 1 illustrates an arrangement for condition monitoring of a rope of a hoisting apparatus according to one embodiment of the present invention.
  • the rope 1 is belt-shaped, i.e. larger in width direction than thickness direction and has a first end 7 and other end 8.
  • the rope 1 comprises a non-conductive coating 2, and a plurality of conductive load bearing members 3-6 for bearing the load exerted on the rope 1 in longitudinal direction thereof, which are adjacent in width direction of the rope 1.
  • the load bearing members 3-6 are embedded in the non-conductive coating 2 and extend parallel to each other as well as to the longitudinal direction of the rope 1 unbroken throughout the length of the rope 1.
  • the coating 2 forms the surface of the rope 1 and extends between adjacent load bearing members 3-6, thereby isolating them from each other both mechanically and electrically.
  • the said conductive load bearing members 3-6 may be made of non-metal material.
  • the said conductive load bearing members 3-6 may be made of composite material comprising electrically conducting reinforcing fibers in polymer matrix, said reinforcing fibers preferably being carbon fibers.
  • the rope 1 of a hoisting apparatus according to the present invention may e.g. be a hoisting rope 1, a suspension rope 1 or a compensation rope 1.
  • the rope according to the present invention comprises protrusions and/or grooves for guiding the rope. Furthermore, in a preferred embodiment, the rope is provided with a cogged surface in order to produce a positive contact with a drive sheave. Furthermore, in a preferred embodiment, the rope is symmetrical in its thickness direction.
  • the arrangement for condition monitoring of a rope of a hoisting apparatus comprises an at least one condition monitoring device 9 for monitoring the condition of the rope 1.
  • the arrangement for condition monitoring of a rope of a hoisting apparatus according to the present invention also comprises an at least one connection interface 10-13.
  • the arrangement for condition monitoring of a rope of a hoisting apparatus according to the embodiment of the present invention presented in Figure 1 comprises a condition monitoring device 9 of said at least one condition monitoring device 9 and a first connection interface 10, a second connection interface 11, a third connection interface 12 and a fourth connection interface 13 of said at least one connection interface 10-13.
  • an electrical pulse or an electromagnetic signal is inserted into said conductive load bearing members 3-6 to propagate from the first end 7 to the second end 8 of the rope 1 or from the second end 8 to the first end 7 of the rope 1.
  • the condition monitoring device 9 receives an electrical pulse or an electromagnetic signal propagating in said conductive load bearing members 3-6 through said at least one connection interface 10-13. By analyzing and monitoring said received electrical pulse or said received electromagnetic signal said condition monitoring device 9 may determine the condition of the rope 1.
  • FIG 2 illustrates a preferred inner structure of the load bearing member according to the present invention.
  • the width direction w and the thickness direction t of a load bearing member 3 is shown.
  • the cross section of the load bearing member 3 as viewed in the longitudinal direction I of the load bearing member 3 is shown in particular.
  • the rope could alternatively have some other number of load bearing members 3, either more or less than what is disclosed in the Figures.
  • the load bearing members 3-6 are made of composite material comprising reinforcing fibers F embedded in polymer matrix m.
  • the reinforcing fibers F are more specifically distributed in polymer matrix m and bound together by the polymer matrix, particularly such that an elongated rod-like piece is formed.
  • each load bearing member 3-6 is one solid elongated rod-like piece.
  • the reinforcing fibers F are distributed preferably substantially evenly in the polymer matrix m. Thereby a load bearing member with homogeneous properties and structure is achieved throughout its cross section. In this way, it can be also ensured that each of the fibers can be in contact and bonded with the matrix m.
  • Said reinforcing fibers F are most preferably carbon fibers as they are electrically conducting and have excellent properties in terms of load bearing capacity, weight and tensile stiffness, which makes them particularly well suitable for use in elevator hoisting ropes.
  • said reinforcing fibers F can be of any other fiber material which is electrically conducting.
  • the matrix m comprises preferably of epoxy, but alternative materials could be used depending on the preferred properties.
  • substantially all the reinforcing fibers F of each load bearing member 3-6 are parallel with the longitudinal direction of the load bearing member 3-6. Thereby the fibers are also parallel with the longitudinal direction of the rope 1 as each load bearing member is oriented parallel with the longitudinal direction of the rope 1.
  • the fibers in the final rope 1 will be aligned with the force when the rope 1 is pulled, which ensures that the structure provides high tensile stiffness. This is also advantageous for achieving unproblematic behavior of the internal structure, particularly internal movement, when the rope 1 is bent.
  • the fibers F used in the preferred embodiments are substantially untwisted in relation to each other, which provides them said orientation parallel with the longitudinal direction of the rope 1. This is in contrast to the conventionally twisted elevator ropes, where the wires or fibers are strongly twisted and have normally a twisting angle from 15 up to 30 degrees, the fiber/wire bundles of these conventionally twisted elevator ropes thereby having the potential for transforming towards a straighter configuration under tension, which provides these ropes a high elongation under tension as well as leads to an unintegral structure.
  • the reinforcing fibers F are preferably long continuous fibers in the longitudinal direction of the load bearing member, the fibers F preferably continuing for the whole length of the load bearing member 3-6 as well as the rope 1.
  • the fibers F being oriented parallel with longitudinal direction of the rope 1, as far as possible, the cross section of the load bearing member 3-6 can be made to continue substantially the same in terms of its cross-section for the whole length of the rope 1. Thus, no substantial relative movement can occur inside the load bearing member 3-6 when it is bent.
  • the reinforcing fibers F are preferably distributed in the aforementioned load bearing member 3-6 substantially evenly, in particular as evenly as possible, so that the load bearing member 3-6 would be as homogeneous as possible in the transverse direction thereof.
  • An advantage of the structure presented is that the matrix m surrounding the reinforcing fibers F keeps the interpositioning of the reinforcing fibers F substantially unchanged. It equalizes with its slight elasticity the distribution of a force exerted on the fibers, reduces fiber-fiber contacts and internal wear of the hoisting rope, thus improving the service life of the rope 1.
  • the composite matrix m, into which the individual fibers F are distributed as evenly as possible, is most preferably made of epoxy, which has good adhesion to the reinforcement fibers F and which is known to behave advantageously with carbon fiber.
  • e.g. polyester or vinyl ester can be used, but alternatively any other suitable alternative materials can be used.
  • Figure 2 presents inside the circle a partial cross-section of the load bearing member 3-6 close to the surface thereof as viewed in the longitudinal direction of the rope 1.
  • the reinforcing fibers F of the load bearing member 3-6 are preferably organized in the polymer matrix m according to this cross-section.
  • the rest (parts not showed) of the load bearing member 3-6 have a similar structure.
  • Figure 3 illustrates a three dimensional view of a section of the load bearing member according to the present invention. From the presented Figure 2 and Figure 3 it can also be seen how the individual reinforcing fibers F of a load bearing member 3 are substantially evenly distributed in the polymer matrix m, which surrounds the reinforcing fibers F.
  • the polymer matrix m fills the areas between individual reinforcing fibers F and binds substantially all the reinforcing fibers F that are inside the matrix m to each other as a uniform solid substance.
  • a chemical bond exists between, the individual reinforcing fibers F (preferably each of them) and the matrix m, one advantage of which is uniformity of the structure.
  • each fiber can have a thin coating, e.g. a primer (not presented) on the actual fiber structure between the reinforcing fiber structure and the polymer matrix m.
  • a primer not presented
  • the properties of the polymer matrix m can also be optimized as it is common in polymer technology.
  • the matrix m can comprise a base polymer material (e.g. epoxy) as well as additives, which fine-tune the properties of the base polymer such that the properties of the matrix are optimized.
  • the polymer matrix m is preferably of a hard non-elastomer as in this case a risk of buckling can be reduced for instance.
  • the polymer matrix need not be non-elastomer necessarily, e.g. if the downsides of this kind of material are deemed acceptable or irrelevant for the intended use.
  • the polymer matrix m can be made of elastomer material such as polyurethane or rubber for instance.
  • the reinforcing fibers F being in the polymer matrix means here that the individual reinforcing fibers F are bound to each other with a polymer matrix m, e.g. in the manufacturing phase by immersing them together in the fluid material of the polymer matrix which is thereafter solidified.
  • the gaps of individual reinforcing fibers bound to each other with the polymer matrix comprise the polymer of the matrix.
  • the reinforcing fibers are preferably distributed substantially evenly in the polymer matrix m, whereby the load bearing member is as homogeneous as possible when viewed in the direction of the cross-section of the rope.
  • the fiber density in the cross-section of the load bearing member 3-6 does not therefore vary substantially.
  • the individual reinforcing fibers of the load bearing member 3-6 are mainly surrounded with polymer matrix m, but random fiber-fiber contacts can occur because controlling the position of the fibers in relation to each other in their simultaneous impregnation with polymer is difficult, and on the other hand, perfect elimination of random fiber-fiber contacts is not necessary from the viewpoint of the functioning of the solution. If, however, it is desired to reduce their random occurrence, the individual reinforcing fibers F can be pre-coated with material of the matrix m such that a coating of polymer material of said matrix is around each of them already before they are brought and bound together with the matrix material, e.g. before they are immersed in the fluid matrix material.
  • the matrix m of the load bearing member 3-6 is most preferably hard in its material properties.
  • a hard matrix m helps to support the reinforcing fibers F, especially when the rope bends, preventing buckling of the reinforcing fibers F of the bent rope, because the hard material supports the fibers F efficiently.
  • the polymer matrix m is hard, and in particular non-elastomeric.
  • the most preferred materials for the matrix are epoxy resin, polyester, phenolic plastic or vinyl ester.
  • the polymer matrix m is preferably so hard that its module of elasticity E is over 2 GPa, most preferably over 2.5 GPa. In this case the module of elasticity E is preferably in the range 2.5-10 GPa, most preferably in the range 2.5-3.5 GPa.
  • the matrix m which can provide these material properties.
  • the surface area of the cross-section of the load bearing member 3-6 is of the aforementioned electrically conducting reinforcing fiber.
  • Fibers F will be in contact with each other randomly along their length whereby electromagnetic wave signal inserted into the load bearing member will propagate within substantially the whole cross section of the load bearing member.
  • 50%-80% of the surface area of the cross-section of the load bearing member 3-6 is of the aforementioned reinforcing fiber, most preferably such that 55%-70% is of the aforementioned reinforcing fiber, and substantially all the remaining surface area is of polymer matrix.
  • Figure 4 illustrates an arrangement for condition monitoring of a rope of a hoisting apparatus according to another embodiment of the present invention having a defect in the rope of the hoisting apparatus.
  • the arrangement for condition monitoring of a rope of a hoisting apparatus presented in Figure 4 is similar to that of presented in Figure 1 with the exception of that there is a defect 14 in the first parallel conductor transmission line 14 of the defected rope 1 of Figure 4 .
  • the defected rope 1 is partially broken from a defect 14 in the middle part of the defected rope 1.
  • an electrical pulse or an electromagnetic signal is inserted into said conductive load bearing members 3-6 to propagate from the first end 7 to the second end 8 of the rope 1 or from the second end 8 to the first end 7 of the rope 1.
  • the condition monitoring device 9 receives an electrical pulse or an electromagnetic signal propagating in said conductive load bearing members 3-6 through said at least one connection interface 10-13. By analyzing and monitoring said received electrical pulse or said received electromagnetic signal said condition monitoring device 9 may substantiate the defect 14 and type of the damage and determine the condition of the rope 1.
  • Figure 5 illustrates a side view of a wedge element of a terminating arrangement for a rope of a hoisting apparatus according to one embodiment of the present invention.
  • the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 16, a bottom wedge component 17 and a hinge portion 18.
  • the wedge element 15 of a said terminating arrangement for a rope according to the presented embodiment has a hinge portion 18 placed between the end of said top wedge component 16 and the end of said bottom wedge component 17.
  • Said hinge portion 18 may e.g. be an elastic hinge portion 18.
  • the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus is made of electrically resistive (non-conducting) material, such as non-metal material, said non-metal material e.g. being fibre-reinforced plastic or fibre-reinforced plastic or plastic, such as Acrylonitrile Butadiene Styrene (ABS), Polyoxymethylene (POM), Polycarbonate (PC) or Polycaprolactam (PA6).
  • ABS Acrylonitrile Butadiene Styrene
  • POM Polyoxymethylene
  • PC Polycarbonate
  • PA6 Polycaprolactam
  • FIG. 6 illustrates a side view of a wedge element of a terminating arrangement connected to a rope of a hoisting apparatus according to one embodiment of the present invention.
  • the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 16, a bottom wedge component 17 and a hinge portion 18. Said top wedge component 16 and said a bottom wedge component 17 of said wedge element 15 are turned towards each other at the point of said hinge portion 18 and a rope 1 is placed between said top wedge component 16 and said a bottom wedge component 17.
  • the rope 1 of a hoisting apparatus according to the present invention may e.g. be a hoisting rope 1, a suspension rope 1 or a compensation rope 1.
  • top wedge component 16 and said bottom wedge component 17 are clamped together on both sides of said rope 1 so that said top wedge component 16 and said bottom wedge component 17 enable forming of an electrical connection between the conductive load bearing members 3-6 of said rope 1 and at least one connection interface 10-13 leading to a condition monitoring device 9.
  • Said top wedge component 16 and said bottom wedge component 17 of the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus may also comprise at least one fixing bolt and at least one nut arranged to hold said top wedge component 16 and said bottom wedge component 17 of the wedge element 15 of a terminating arrangement for a rope together.
  • said top wedge component 16 and said bottom wedge component 17 may comprise at least one fixing bolt, said at least one fixing bolt arranged to hold said top wedge component 16 and said bottom wedge component 17 together.
  • FIG. 7 illustrates an end view of a wedge element of a terminating arrangement connected to a rope of a hoisting apparatus according to one embodiment of the present invention.
  • the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 16, a bottom wedge component 17 and a hinge portion 18. Said top wedge component 16 and said a bottom wedge component 17 of said wedge element 15 are turned towards each other at the point of said hinge portion 18 and a rope 1 is placed between said top wedge component 16 and said a bottom wedge component 17.
  • the rope 1 of a hoisting apparatus according to the present invention may e.g. be a hoisting rope 1, a suspension rope 1 or a compensation rope 1.
  • top wedge component 16 and said bottom wedge component 17 are clamped together on both sides of said rope 1 so that said top wedge component 16 and said bottom wedge component 17 enable forming of an electrical connection between the conductive load bearing members 3-6 of said rope 1 and at least one connection interface 10-13 leading to a condition monitoring device 9.
  • Figure 8 illustrates an end view of a wedge element of a terminating arrangement for a rope of a hoisting apparatus according to another embodiment of the present invention.
  • the wedge element 19 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 20, a bottom wedge component 21 and a hinge portion 22.
  • the wedge element 19 of a said terminating arrangement for a rope according to the presented embodiment has a hinge portion 22 placed between the side of said top wedge component 20 and the side of said bottom wedge component 21.
  • Said hinge portion 22 may e.g. be an elastic hinge portion 22.
  • the wedge element 19 of a terminating arrangement for a rope of a hoisting apparatus is made of electrically resistive (non-conducting) material, such as non-metal material, said non-metal material e.g. being fibre-reinforced plastic or fibre-reinforced plastic or plastic, such as Acrylonitrile Butadiene Styrene (ABS), Polyoxymethylene (POM), Polycarbonate (PC) or Polycaprolactam (PA6).
  • ABS Acrylonitrile Butadiene Styrene
  • POM Polyoxymethylene
  • PC Polycarbonate
  • PA6 Polycaprolactam
  • FIG 9 illustrates a side view of a wedge element of a terminating arrangement connected to a rope of a hoisting apparatus according to another embodiment of the present invention.
  • the wedge element 19 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 20, a bottom wedge component 21, a hinge portion and a securing clip 23 for securing said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 to a rope 1.
  • Said top wedge component 20 and said a bottom wedge component 21 of said wedge element 19 are turned towards each other at the point of said hinge portion and a rope 1 is placed between said top wedge component 20 and said a bottom wedge component 21.
  • the rope 1 of a hoisting apparatus according to the present invention may e.g. be a hoisting rope 1, a suspension rope 1 or a compensation rope 1.
  • top wedge component 20 and said bottom wedge component 21 are clamped together on both sides of said rope 1 so that said top wedge component 20 and said bottom wedge component 21 enable forming of an electrical connection between the conductive load bearing members 3-6 of said rope 1 and at least one connection interface 10-13 leading to a condition monitoring device 9.
  • Said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 are secured to said rope 1 with said securing clip 23.
  • Said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 of a terminating arrangement for a rope of a hoisting apparatus may also comprise at least one fixing bolt and at least one nut arranged to hold said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 of a terminating arrangement for a rope together.
  • FIG 10 illustrates an end view of a wedge element of a terminating arrangement connected to a rope of a hoisting apparatus according to another embodiment of the present invention.
  • the wedge element 19 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 20, a bottom wedge component 21, a hinge portion and a securing clip 23 for securing said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 to a rope 1.
  • Said top wedge component 20 and said a bottom wedge component 21 of said wedge element 19 are turned towards each other at the point of said hinge portion and a rope 1 is placed between said top wedge component 20 and said a bottom wedge component 21.
  • the rope 1 of a hoisting apparatus according to the present invention may e.g. be a hoisting rope 1, a suspension rope 1 or a compensation rope 1.
  • top wedge component 20 and said bottom wedge component 21 are clamped together on both sides of said rope 1 so that said top wedge component 20 and said bottom wedge component 21 enable forming of an electrical connection between the conductive load bearing members 3-6 of said rope 1 and at least one connection interface 10-13 leading to a condition monitoring device 9.
  • Said top wedge component 20 and said bottom wedge component 21 of the wedge element 19 are secured to said rope 1 with said securing clip 23.
  • FIG 11 illustrates a cross-sectional view of a terminating arrangement for a rope of a hoisting apparatus according to one embodiment of the present invention.
  • the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus according to the presented embodiment comprises a top wedge component 16, a bottom wedge component 17 and a hinge portion 18.
  • the wedge element 15 of a said terminating arrangement for a rope according to the presented embodiment has a hinge portion 18 placed in the end of said top wedge component 16 and in the end of said bottom wedge component 17.
  • Said hinge portion 18 may e.g. be an elastic hinge portion 18.
  • Said top wedge component 16 and said a bottom wedge component 17 of said wedge element 15 are turned towards each other at the point of said hinge portion 18 and a rope 1 is placed between said top wedge component 16 and said a bottom wedge component 17.
  • Said top wedge component 16 and said bottom wedge component 17 are clamped together on both sides of said rope 1 so that said top wedge component 16 and said bottom wedge component 17 enable forming of an electrical connection between the conductive load bearing members 3-6 of said rope 1 and at least one connection interface 10-13 leading to a condition monitoring device 9.
  • Said top wedge component 16 and said bottom wedge component 17 of the wedge element 15 of a terminating arrangement for a rope of a hoisting apparatus may also comprise at least one fixing bolt and at least one nut arranged to hold said top wedge component 16 and said bottom wedge component 17 of the wedge element 15 of a terminating arrangement for a rope together.
  • the terminating arrangement for a rope of a hoisting apparatus also comprises a wedge housing 24.
  • said terminated rope 1 with said top wedge component 16 and said bottom wedge component 17 secured on both sides of said rope 1 are placed inside said wedge housing 24.
  • the terminating arrangement for a rope can now be connected to a condition monitoring device 9.
  • the terminating arrangement for a rope may forward information for quantifying the severity of the defect 14 such as e.g. fiber damage to said condition monitoring device 9.
  • the load bearing members 3-6 are substantially rectangular. However, this is not necessary as alternative shapes could be used. Said composite members 3-6 can be manufactured for example in any known way, such as in the manner presented in WO2009090299A1 .
  • the rope 1 comprises four load bearing members 3-6.
  • the arrangement is implemented with a rope provided with some other number of load bearing members 3-6.
  • conductivity in this application it is meant electrical conductivity.
  • a connection of good quality between load bearing members 3-6 of the rope and the condition monitoring device 9 can be secured.
  • the condition monitoring device 9 can monitor the condition of the rope and notice if there is an indication of damage or an indication that the rope is going to break.
  • the terminating arrangement according to the present invention With the help of the terminating arrangement according to the present invention the on-site installation of the electrical connection is easier and faster than with the prior art solutions. Furthermore, the wedge element of the terminating arrangement according to the present invention does not jam due to rust and provides a more even tension distribution to the non-conducting coating of the rope this increasing the load bearing capacity as well as the rupture lifetime of the terminal. Furthermore, the terminating arrangement according to the present invention reduces the manufacturing costs and is more reliable and withstands excess temperatures and temperature changes considerably better than the prior art solutions.

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  • Lift-Guide Devices, And Elevator Ropes And Cables (AREA)
EP17151188.4A 2017-01-12 2017-01-12 Agencement de terminaison pour un câble d'un appareil de levage Withdrawn EP3348510A1 (fr)

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EP17151188.4A EP3348510A1 (fr) 2017-01-12 2017-01-12 Agencement de terminaison pour un câble d'un appareil de levage

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EP17151188.4A EP3348510A1 (fr) 2017-01-12 2017-01-12 Agencement de terminaison pour un câble d'un appareil de levage

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EP3348510A1 true EP3348510A1 (fr) 2018-07-18

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114650960A (zh) * 2019-11-20 2022-06-21 三菱电机株式会社 带把持用具

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090299A1 (fr) 2008-01-18 2009-07-23 Kone Corporation Câble pour machine de levage, ascenseur et utilisation
EP2749520A2 (fr) * 2012-12-30 2014-07-02 Kone Corporation Ensemble de borne de câble et élévateur
US20160152445A1 (en) * 2014-12-01 2016-06-02 Kone Corporation Method and arrangement
US20160221796A1 (en) * 2015-02-03 2016-08-04 Kone Corporation Rope terminal arrangement, arrangement for condition monitoring of an elevator rope and elevator

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009090299A1 (fr) 2008-01-18 2009-07-23 Kone Corporation Câble pour machine de levage, ascenseur et utilisation
EP2749520A2 (fr) * 2012-12-30 2014-07-02 Kone Corporation Ensemble de borne de câble et élévateur
US20160152445A1 (en) * 2014-12-01 2016-06-02 Kone Corporation Method and arrangement
US20160221796A1 (en) * 2015-02-03 2016-08-04 Kone Corporation Rope terminal arrangement, arrangement for condition monitoring of an elevator rope and elevator

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114650960A (zh) * 2019-11-20 2022-06-21 三菱电机株式会社 带把持用具
CN114650960B (zh) * 2019-11-20 2024-06-04 三菱电机株式会社 带把持用具

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