EP4662424A1 - Collier de serrage du type à coin et dispositif de haubanage doté d'un tel collier de serrage du type à coin - Google Patents

Collier de serrage du type à coin et dispositif de haubanage doté d'un tel collier de serrage du type à coin

Info

Publication number
EP4662424A1
EP4662424A1 EP24704702.0A EP24704702A EP4662424A1 EP 4662424 A1 EP4662424 A1 EP 4662424A1 EP 24704702 A EP24704702 A EP 24704702A EP 4662424 A1 EP4662424 A1 EP 4662424A1
Authority
EP
European Patent Office
Prior art keywords
groove
wedge
clamping
rope
clamp
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.)
Pending
Application number
EP24704702.0A
Other languages
German (de)
English (en)
Inventor
Simon ZEMKE
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.)
Richard Bergner Holding GmbH and Co KG
Original Assignee
Richard Bergner Holding GmbH and Co KG
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 Richard Bergner Holding GmbH and Co KG filed Critical Richard Bergner Holding GmbH and Co KG
Publication of EP4662424A1 publication Critical patent/EP4662424A1/fr
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/04—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes with wedging action, e.g. friction clamps
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16G—BELTS, CABLES, OR ROPES, PREDOMINANTLY USED FOR DRIVING PURPOSES; CHAINS; FITTINGS PREDOMINANTLY USED THEREFOR
    • F16G11/00—Means for fastening cables or ropes to one another or to other objects; Caps or sleeves for fixing on cables or ropes
    • F16G11/10—Quick-acting fastenings; Clamps holding in one direction only
    • F16G11/105—Clamps holding in one direction only
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02G—INSTALLATION OF ELECTRIC CABLES OR LINES, OR OF COMBINED OPTICAL AND ELECTRIC CABLES OR LINES
    • H02G1/00—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines
    • H02G1/02—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables
    • H02G1/04—Methods or apparatus specially adapted for installing, maintaining, repairing or dismantling electric cables or lines for overhead lines or cables for mounting or stretching

Definitions

  • CN 201041930 Y also contains a guy clamp with a different clamping concept.
  • a slotted clamping sleeve is provided, into which a fastening hook is screwed at the end, which enables axial displacement.
  • the invention is based on the object of enabling reliable tensioning of a rope with a pressure-sensitive core at low cost and with little installation effort.
  • the two clamping wedges are generally two separate components, each of which has a channel with a groove in it.
  • the components have a sufficiently high inherent rigidity so that - unlike a slotted sleeve - they remain dimensionally stable and do not deform elastically even when the rope is clamped. Due to their wedge-shaped design, the two clamping wedges are only offset against each other in a radial direction in order to exert the clamping force.
  • the groove also allows for clamping of ropes with pressure-sensitive cores.
  • each groove has a groove base which is formed by the base body of each clamping wedge.
  • Each groove extends over the entire length of the clamping wedge, at least over the length of a clamping area.
  • Each groove therefore runs freely at the opposite ends of the clamping area and in particular at opposite ends of the clamping wedge.
  • the clamping area is defined by the area in which the rope is clamped between the two clamping wedges when installed and which therefore exert a clamping force on the rope.
  • the two clamping wedges have an identical design, at least when viewed in cross-section across the clamping area.
  • at least the contour directed towards the rope structure to be clamped i.e. the contour that grips the rope, is of identical design.
  • Each clamping wedge is a one-piece, in particular monolithic component, at least in the area of the conductor cable to be clamped.
  • Each groove has a wall formed by the clamping wedge, which, viewed in cross section, preferably runs along a circular arc having a predetermined clamping radius.
  • the groove therefore extends over the entire length of at least the clamping area and a profile cross-section formed by the groove and the groove - at least a cross-sectional contour facing the rope - is constant over the entire length of the clamping wedge or at least the clamping area.
  • the clamping radius corresponds to an outer radius of a rope structure of the rope to be clamped.
  • a clamping diameter double clamping radius
  • the outer radius of the rope structure is defined, for example, by the rope itself or by the rope plus a protective spiral surrounding it. This also promotes a homogeneous pressure distribution and avoids local pressure zones or pressure peaks.
  • the groove has a radial depth that is one gap smaller than the clamping radius. If the two clamping wedges are in contact with the rope structure, the two clamping wedges are therefore spaced apart by twice the gap.
  • the groove itself is limited by the groove base and two opposing groove walls.
  • Each groove has a groove depth and a groove width.
  • the groove depth is in any case less than the wall thickness of the clamping wedges and in particular less than half and preferably less than the wall thickness of the clamping wedge, based on its thickest area.
  • the groove depth is the distance in the radial direction / vertical direction between the circular arc running along the wall of the channel and the groove base.
  • the groove width is the distance between the two groove walls perpendicular to a radial / perpendicular to the vertical direction, namely halfway up the groove depth.
  • the groove width is in the range between 0.5 times and five times the gap between the mounted clamping wedges and in particular in the range between one and three times the gap, especially twice the gap.
  • the groove depth is preferably in the range between 0.5 and 1.5 times the groove width and is in particular in the range up to a maximum of once the groove width.
  • the groove depth is preferably approximately 2/3 of the groove width.
  • the overall groove depth is smaller than the groove width. Investigations have shown that such dimensions are particularly suitable for the desired distribution of the transverse compressive forces in order to reliably protect the pressure-sensitive core.
  • the groove merges into the wall of the channel in a rounded manner.
  • the groove walls therefore have a transition radius that merges into the clamping radius. This avoids a sharp-edged transition overall.
  • the cross-sectional contour of the groove is preferably approximately rectangular, alternatively it can also be circular or polygonal, e.g. triangular. It is important that the groove is sufficiently wide and preferably has a rounded transition into the wall.
  • a rounded transition is preferably formed between the groove base and the groove walls.
  • the transitions from the groove base to the groove walls on the one hand and from the groove walls to the wall of the channel on the other hand have, for example, the same radius.
  • the groove walls - viewed in cross section - preferably run continuously curved along arc lines and thus, for example, in an S-shape from the groove base to the wall.
  • the groove base preferably runs in a straight line.
  • the groove width widens from the groove base towards the channel.
  • the side groove walls are therefore inclined in a preferred embodiment.
  • the two groove walls therefore do not run parallel to each other and enclose a groove angle between them. This is preferably in a range between 30° - 50° and in particular around 40°. This measure achieves a smooth and even transition into the wall of the channel and thus a suitable transverse pressure load.
  • the rope held by the guying device is in particular a rope with a pressure-sensitive core, in particular a carbon core or a glass fiber core.
  • the core is made of preferably consists of a large number of individual non-metallic fibers, in particular carbon fibers and/or glass fibers. These are typically embedded in a matrix. This core forms a central tensile strand. Typically, several layers of rope strands are arranged around this. These rope strands are typically made of aluminum rope strands.
  • a protective spiral is also attached around the rope. This preferably extends only in the area of the wedge guy clamp, so has a length that is, for example, between twice or even three times the length of the wedge guy clamp. However, the protective spiral extends at least over both ends of the clamping wedges, preferably over the length of the clamping area (length of the clamping wedges).
  • a curved rope guide also known as an outlet, is typically attached to one of the two clamping wedges.
  • the protective spiral preferably extends at least over this rope guide.
  • the protective spiral is at least one and, if necessary, several rods wound spirally around the rope. These rods are preferably made of aluminum.
  • the rope together with the protective spiral forms the rope structure to be clamped.
  • the rope diameter and thus the clamping diameter of the clamping wedges is typically in the range of 10 mm to 50 mm and for versions with a protective spiral, the corresponding diameter is typically in the range of 15 mm to 60 mm.
  • FIG 1 is a side view in the form of a longitudinal section of a guying device with a wedge guying clamp and a rope with a pressure-sensitive core held therein,
  • FIG 2 a plan view of a clamping wedge
  • FIG 3 is a front view of the clamping wedge shown in FIG 2 and FIG 4 is an enlarged view of the area marked with a circle in FIG 3.
  • a guying device 2 shown in FIG. 1 has a wedge guying clamp 4 with a rope 6 clamped therein.
  • the rope 6 has a pressure-sensitive core 8, which is designed, for example, as a carbon core.
  • Several metallic rope strands are arranged around this core, stranded in one or more layers.
  • the wedge guy clamp 4 extends in a longitudinal direction L and has a clamp housing 10 in which two clamping wedges 12 are accommodated.
  • the wedge guy clamp 4 is usually made of metal and, for example, of aluminum.
  • the basic structure of such wedge guy clamps 4 is known.
  • the clamp housing 10 has two side parts and a housing base, so that it is U-shaped when viewed in cross section and the cable 6 can be inserted laterally. After the cable 6 has been inserted, the clamp housing 10 is closed by a housing cover.
  • the housing cover and housing base are designed in particular in the manner of profile rails that can be inserted longitudinally into a corresponding profile structure of the side parts.
  • the clamp housing 10 defines a free interior space that tapers in a wedge shape in the longitudinal direction. This is achieved in particular by a wedge-shaped design of the profile rails.
  • each clamping wedge 12 is wedge-shaped when viewed from the side.
  • the two clamping wedges 12 define a clamping area 13 within which they exert a radial clamping force on the rope 6.
  • the clamping area extends over the entire length of the clamping wedges 12.
  • clamping wedge 12 is understood to mean (only) the wedge-shaped area in which the opposite outer sides run towards each other at the wedge angle a.
  • the two clamping wedges 12 are connected to each other at the rear edge of the clamping area 13.
  • each clamping wedge 12 has widenings 16 with through holes, so that a type of clamp is formed.
  • a further screw clamp 18 is attached to fix the cable 6 to the curved cable guide 14.
  • Protruding fastening pins are attached to the terminal housing 10, to which suspension lugs are attached, with which the wedge guy clamp 4 is suspended from a mast of the overhead line.
  • the cable 6 is generally a conductor cable of an overhead line for power transmission. Accordingly, the guy device 2 is mounted in the assembled state on a (guy) mast of such an overhead line.
  • FIG. 2 shows a view from above of the clamping wedge 12 without rope guide 14.
  • FIG. 3 shows a view in the longitudinal direction L of the rear end face of the clamping wedge 12 and
  • FIG. 4 shows an enlarged view of the area marked with the circle A in FIG. 3.
  • the respective clamping wedge 12 extends in the longitudinal direction L, in the transverse direction Q and in the vertical direction V, whereby these three directions form a Cartesian coordinate system.
  • the respective clamping wedge 12 has a particularly monolithic base body 22 with a top side, a bottom side and two side surfaces.
  • the base body 22 has a groove 24 introduced into the top side, which extends in the longitudinal direction L over the entire length of the clamping area. 13 and in particular over the entire length of the clamping wedge 12.
  • This has a wall 26 as a channel bottom, which runs along a circular arc with a clamping radius R.
  • the base body 22 typically has - except for the channel 24 with the groove 22 - a rectangular cross-sectional shape, the side surfaces therefore run parallel to one another.
  • the clamping radius R corresponds in particular to a radius of the rope structure to be clamped. This clamping radius R is either given by the radius of the rope 6 itself. Alternatively, in a design variant in which a protective spiral (not shown here) is attached at least in the clamping area around the rope 6, the clamping radius R corresponds to the radius of the rope structure to be clamped consisting of the rope 6 and the protective spiral.
  • the channel 24 has a radial depth T which is one gap x smaller than the clamping radius R.
  • the radial depth T is defined by the distance in the radial direction / vertical direction V between the top of the clamping wedge 12 and the lowest point of the channel 24 without taking into account the groove 20 (see also FIG 3).
  • the groove 20 has a groove base 28 and two lateral groove walls 30.
  • the groove 20 has a groove depth t and a groove width b.
  • the groove depth t is the distance in the radial direction / vertical direction V between the imaginary arc line of the clamping radius R and the groove base 28.
  • the groove width b is the distance between the two groove walls 30 in the transverse direction Q at the level of half the groove depth t.
  • the groove depth t is generally smaller than the groove width b. In particular, it is in the range between 0.25 times and 0.75 times the groove width b. In the exemplary embodiment, it is in particular approximately 1/2 the groove width b. Furthermore, the groove width b is in the range between one and three times the gap dimension x. In the exemplary embodiment, the groove width b is in particular twice the gap dimension x. The groove width b therefore preferably corresponds to the distance between the two clamping wedges 12.
  • the groove depth t generally corresponds to only a fraction of the total wall thickness of the clamping wedge 12 in the vertical direction V, namely at the rear, widest end of the clamping wedge 12.
  • the wall thickness of the clamping wedge 12 at this rear end is, for example, 25 mm to 35 mm.
  • the groove 20 does not have any sharp-edged transitions when viewed in cross section.
  • the groove walls 30 merge into the wall 26 of the channel 24, forming a rounded shape.
  • the groove base 28 also merges into the groove walls 30 in a rounded manner.
  • the groove width b thus widens starting from the groove base 28.
  • the groove walls 30 are oriented at an angle to one another and enclose a groove angle a between them. This is, for example, in the range between 25 and 60° and in the exemplary embodiment in particular at 40°.
  • the wedge angle a of the respective clamping wedge 12 i.e. the angle at which the opposite boundary sides (top and bottom) of the respective clamping wedge 12 extend to each other, is typically in the range of a few degrees, for example in the range of 1 °-6 ° and in the exemplary embodiment around 2 ° to 4 °, in particular 3 °.
  • the clamping wedges 12 (without the cable guide 14) typically have a length in the longitudinal direction L of, for example, 25 cm to 40 cm and in the exemplary embodiment in the range of 30 cm.
  • the width of the clamping wedges 12 in the transverse direction Q (without extensions 16) is, for example, in the range between 3 cm and 8 cm and in particular in the range of 5 cm.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Clamps And Clips (AREA)

Abstract

L'invention concerne un collier de serrage du type à coin (4) pour un câble (6) qui comprend deux coins de serrage (12) s'étendant dans une direction longitudinale (L), les coins de serrage (12) étant logés dans un boîtier de serrage (10) à l'état assemblé. Les coins de serrage (12) comprennent un canal (24) pour recevoir par serrage le câble (6), lequel canal s'étend dans la direction longitudinale (L) et dans lequel se trouve une rainure (20) s'étendant dans la direction longitudinale (L). Au moyen de la rainure (20), les forces de compression transversales pendant la mise sous tension sont définies de manière avantageuse de sorte que le collier de serrage du type à coin (4) est également approprié pour des câbles (6) ayant une âme sensible à la pression.
EP24704702.0A 2023-02-10 2024-02-05 Collier de serrage du type à coin et dispositif de haubanage doté d'un tel collier de serrage du type à coin Pending EP4662424A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102023201106.9A DE102023201106A1 (de) 2023-02-10 2023-02-10 Keilabspannklemme sowie Abspannvorrichtung mit einer solchen Keilabspannklemme
PCT/EP2024/052810 WO2024165512A1 (fr) 2023-02-10 2024-02-05 Collier de serrage du type à coin et dispositif de haubanage doté d'un tel collier de serrage du type à coin

Publications (1)

Publication Number Publication Date
EP4662424A1 true EP4662424A1 (fr) 2025-12-17

Family

ID=89905861

Family Applications (1)

Application Number Title Priority Date Filing Date
EP24704702.0A Pending EP4662424A1 (fr) 2023-02-10 2024-02-05 Collier de serrage du type à coin et dispositif de haubanage doté d'un tel collier de serrage du type à coin

Country Status (4)

Country Link
US (1) US20250361922A1 (fr)
EP (1) EP4662424A1 (fr)
DE (1) DE102023201106A1 (fr)
WO (1) WO2024165512A1 (fr)

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT224183B (de) 1961-07-03 1962-11-12 Ernst Ing Neumann Keilabspannklemme
GB1009003A (en) * 1961-07-28 1965-11-03 Malodan As Rope clamp
US3816012A (en) * 1972-05-11 1974-06-11 Sauerman Bros Inc Wire rope socket fitting
DE2721357A1 (de) * 1977-05-12 1978-11-23 Heinz Otto Abspannklemme
US4845814A (en) * 1987-04-13 1989-07-11 Crosby Group, Inc. Wedge socket
DE4019999A1 (de) 1990-06-22 1992-01-02 Preformed Line Products Great Keilabspannklemme fuer elektrische leiter
JPH08205369A (ja) * 1995-01-19 1996-08-09 Asahi Tec Corp クサビ型クランプ
EP1255339B1 (fr) 2001-05-05 2006-10-11 Richard Bergner Elektroarmaturen GmbH & Co.KG Pince d'ancrage à cale sans vis
DE20205679U1 (de) * 2002-04-12 2002-08-29 Richard Bergner Elektroarmaturen GmbH & Co KG, 91126 Schwabach Elektrische Freileitung mit einem Luftkabel und Erdungsklemme
JP2004293611A (ja) * 2003-03-26 2004-10-21 Mic:Kk ケーブルクリップ
JP4642555B2 (ja) * 2005-05-31 2011-03-02 有限会社吉田構造デザイン ロープ用定着装置
CN201041930Y (zh) 2007-06-07 2008-03-26 南京苏源南线电力实业有限公司 一种楔形耐张接头

Also Published As

Publication number Publication date
US20250361922A1 (en) 2025-11-27
DE102023201106A1 (de) 2024-08-14
WO2024165512A1 (fr) 2024-08-15

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