JP6201042B2 - Power cable clamp - Google Patents

Power cable clamp Download PDF

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JP6201042B2
JP6201042B2 JP2016517766A JP2016517766A JP6201042B2 JP 6201042 B2 JP6201042 B2 JP 6201042B2 JP 2016517766 A JP2016517766 A JP 2016517766A JP 2016517766 A JP2016517766 A JP 2016517766A JP 6201042 B2 JP6201042 B2 JP 6201042B2
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carbon fiber
transmission line
core material
fiber core
twisted
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JPWO2015170389A1 (en
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俊次 蜂須賀
俊次 蜂須賀
木村　浩
浩 木村
太輔 眞鍋
太輔 眞鍋
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Tokyo Rope Manufacturing Co Ltd
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Tokyo Rope Manufacturing Co Ltd
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    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/05—Suspension arrangements or devices for electric cables or lines
    • H02G7/053—Suspension clamps and clips for electric overhead lines not suspended to a supporting wire
    • H02G7/056—Dead-end clamps
    • 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
    • H02G7/00—Overhead installations of electric lines or cables
    • H02G7/02—Devices for adjusting or maintaining mechanical tension, e.g. take-up device

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  • Suspension Of Electric Lines Or Cables (AREA)

Description

本発明は、架空送電線等の送電線の端末定着に用いる送電線のクランプに関する。   The present invention relates to a power transmission line clamp used for fixing a terminal of a power transmission line such as an overhead power transmission line.

遠方に電力を送電する手法として、架空線形式の架空送電線（以下、「送電線」と称する。）が用いられている。この送電線は、架線張力の多くを負担する心材と、心材の周りに複数の層に撚り合わせたアルミ線とで構成されている。アルミ線は電気良導体で、かつ、軽量であるため架空線形式の送電線として好適である。心材としては鋼撚り線が使用されているが、軽量で高強度、低線膨張等の特性を有する炭素繊維材が用いられることもある。炭素繊維材を用いることで、鋼撚り線を用いた場合に比べ、送電線全体の重量軽減、引張強さ増加、低線膨張化、クリープ性向上が図られ、大容量化、低地度化、長スパン化等のメリットが得られる。   As a method for transmitting power far away, an overhead power transmission line (hereinafter referred to as “power transmission line”) is used. This power transmission line is composed of a core material that bears much of the overhead wire tension and an aluminum wire that is twisted into a plurality of layers around the core material. Aluminum wires are good electrical conductors and are lightweight, so they are suitable as overhead line-type power transmission lines. Although the steel strand is used as the core material, a carbon fiber material having characteristics such as light weight, high strength, and low linear expansion may be used. By using carbon fiber material, compared with the case where steel stranded wire is used, weight reduction of the entire transmission line, increase in tensile strength, low linear expansion, and improvement in creep properties are achieved. Advantages such as long span can be obtained.

炭素繊維材を心材にした送電線を架設・緊張するには送電線を把持、固定するためのクランプ装置が必要となる。炭素繊維材は高い引張強度や弾性係数を有するが、せん断に弱い性質があり、鋼心の送電線をクランプするときに通常に用いられる強い圧縮をすると炭素繊維材がつぶれて損傷し、期待した高い把持力を発揮できずに、低張力で心材が破壊してしまう。このため、次のような対策が考えられている。   In order to construct and tension a power transmission line using a carbon fiber material as a core material, a clamping device for gripping and fixing the power transmission line is required. Although carbon fiber material has high tensile strength and elastic modulus, it has a weak property to shear, and the carbon fiber material is crushed and damaged by strong compression that is normally used when clamping steel core transmission lines. A high gripping force cannot be exhibited, and the core material is destroyed at a low tension. For this reason, the following measures are considered.

段剥ぎをすることなく、撚り合わせ送電線と心材との間に、不織布の巻回層や金属ダイカスト層等の軟質あるいは硬質の緩衝層を設けることで、金属スリーブの圧縮力が緩衝層により吸収または遮断され、心材に加わる力を低減することで炭素繊維の損傷を防ぐ技術が知られている（例えば、日本国特開平７−２５０４１９号公報）。   By providing a soft or hard buffer layer such as a non-woven wound layer or metal die-cast layer between the twisted transmission line and the core material without stepping off, the compressive force of the metal sleeve is absorbed by the buffer layer. Alternatively, a technique is known in which carbon fiber damage is prevented by blocking and reducing the force applied to the core material (for example, Japanese Patent Application Laid-Open No. 7-250419).

亜鉛あるいはアルミニウムの金属を主成分とし、内周面に心材の外周に係合する係合面を形成した一対の半円筒体からなる緩衝スリーブを心材と導電用金属線の撚り合わせ層との間に配置し、外側の金属スリーブを圧縮固定してクランプを構成している。一対の半円筒体からなる緩衝スリーブは予め工場で製造しておくため、現場では露出させた心材に係合させるだけであり作業時間を短縮できる（例えば、日本国特開平８−２３７８４０号公報）。   A buffer sleeve consisting of a pair of semi-cylindrical bodies, the main component of which is zinc or aluminum, and the inner peripheral surface of which forms an engagement surface that engages the outer periphery of the core material, is between the core material and the twisted layer of the conductive metal wire. The clamp is configured by compressing and fixing the outer metal sleeve. Since the buffer sleeve made of a pair of semi-cylindrical bodies is manufactured in advance at the factory, it can be simply engaged with the exposed core material in the field, and the working time can be shortened (for example, Japanese Patent Laid-Open No. 8-237840). .

上述したクランプ装置では、次のような問題があった。すなわち、緩衝層を設ける方法では、不織布の巻回層を成型するには現場で多くの時間を必要とする不都合があった。また、ダイカストによる金属製の緩衝層を形成するには、大型のダイカスト成型機械装置を送電線架設の作業現場に持ち込まなければならず、山間部で実施するには困難があった。   The clamp device described above has the following problems. That is, the method of providing the buffer layer has a disadvantage that it takes a lot of time on site to form the wound layer of the nonwoven fabric. In addition, in order to form a metal buffer layer by die casting, a large-sized die casting molding machine device must be brought into the work site for constructing the power transmission line, which is difficult to implement in a mountain area.

緩衝スリーブを予め工場で製造して用いる方法では、ダイカスト成型機械装置を送電線架設の作業現場に持ち込むことは不要になる。しかしながら、近年、炭素繊維心材は技術改良が図られ、従来と同じ直径であっても引張強さが３０〜４０％程度高くなっている。すなわち、心材の引張強さが大きくなることに伴い、送電線の引張強さも同時に高まり、これにより、同じサイズのクランプであっても把持力をさらに高める必要があった。さらに、炭素繊維は軽量、高強度、低線膨張であるため、特に長スパンでかつ重量の大きくなる太径の大容量送電線に用いられる場合、炭素繊維心材の直径も大きくなる。   In the method in which the buffer sleeve is manufactured and used in the factory in advance, it is not necessary to bring the die casting machine to the work site where the transmission line is installed. However, in recent years, the carbon fiber core material has been improved in technology, and even if it has the same diameter as the conventional one, the tensile strength is increased by about 30 to 40%. That is, as the tensile strength of the core material increases, the tensile strength of the transmission line also increases at the same time, and thus it is necessary to further increase the gripping force even with clamps of the same size. Furthermore, since carbon fiber is light weight, high strength, and low linear expansion, the diameter of the carbon fiber core material is also increased particularly when used for a large-capacity large-capacity transmission line that has a long span and a large weight.

直径が太くなると金属スリーブの食い込み量が相対的に低下し、また、表面積も引張強さに比べて相対的に狭くなるため、結果的に把持力が不足し、クランプから炭素繊維心材が抜ける虞があった。   If the diameter is increased, the amount of biting of the metal sleeve is relatively reduced, and the surface area is also relatively narrow compared to the tensile strength. As a result, the gripping force is insufficient, and the carbon fiber core material may come off from the clamp. was there.

そこで本発明は、簡単な構成で十分で安定した把持力を有するクランプ装置を提供することを目的としている。   Therefore, an object of the present invention is to provide a clamping device having a simple structure and sufficient and stable gripping force.

炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、前記炭素繊維心材と、撚合わせ送電線との間に介挿された筒状の金属緩衝材と、この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする。   Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the power transmission line clamp, the carbon fiber is interposed between the wrapping fiber wound around the carbon fiber in a direction crossing the tensile force generated in the carbon fiber, the carbon fiber core material, and the twisted power transmission line. The cylindrical metal shock absorber made, disposed on the inner peripheral surface side of this metal shock absorber, a lubricant containing at least one of alumina or silicon carbide, and provided on the outer peripheral side of the twisted transmission line, The twisted power transmission line, the metal buffer material, and a cylindrical sleeve for compressing and fixing the carbon fiber core material are provided.

炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、前記炭素繊維心材と、撚合わせ送電線との間に介挿された筒状で錫材を含む金属緩衝材と、この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする。   Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the power transmission line clamp, the carbon fiber is interposed between the wrapping fiber wound around the carbon fiber in a direction crossing the tensile force generated in the carbon fiber, the carbon fiber core material, and the twisted power transmission line. A metallic buffer material containing tin material in a cylindrical shape, a lubricant material disposed on the inner peripheral surface side of the metal buffer material and containing at least one of alumina or silicon carbide, and an outer peripheral side of the twisted transmission line And a cylindrical sleeve that compresses and fixes the twisted power transmission line, the metal cushioning material, and the carbon fiber core material.

図１は、本発明の第１の実施の形態に係る電線のクランプを示す縦断面図である。FIG. 1 is a longitudinal sectional view showing a wire clamp according to a first embodiment of the present invention. 図２は、同電線のクランプを図１中Ａ−Ａ線で切断して矢印方向に見た横断面図である。FIG. 2 is a cross-sectional view of the electric wire clamp taken along line AA in FIG. 1 and viewed in the direction of the arrow. 図３は、同電線のクランプに組み込まれた金属緩衝材を示す横断面図である。FIG. 3 is a cross-sectional view showing the metal cushioning material incorporated in the clamp of the electric wire. 図４は、同電線のクランプに組み込まれた金属緩衝材及び炭素繊維心材を示す斜視図である。FIG. 4 is a perspective view showing a metal cushioning material and a carbon fiber core material incorporated in the clamp of the electric wire. 図５は、同金属緩衝材の変形例を示す横断面図である。FIG. 5 is a cross-sectional view showing a modification of the metal cushioning material. 図６は、同金属緩衝材及び炭素繊維心材の変形例を示す斜視図である。FIG. 6 is a perspective view showing a modification of the metal cushioning material and the carbon fiber core material. 図７は、本発明の第２の実施の形態に係る電線のクランプを示す縦断面図である。FIG. 7 is a longitudinal sectional view showing a wire clamp according to the second embodiment of the present invention. 図８は、同電線のクランプを図７中Ｂ−Ｂ線で切断して矢印方向に見た横断面図である。FIG. 8 is a cross-sectional view of the electric wire clamp taken along line BB in FIG. 7 and viewed in the direction of the arrow.

以下、添付図面にもとづき、本発明の実施形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

図１は本発明の第１の実施の形態に係る１ボディタイプの電線のクランプ１０を示す縦断面図、図２は電線のクランプ１０を図１中Ａ−Ａ線で切断して矢印方向に見た横断面図、図３は電線のクランプ１０に組み込まれた金属緩衝材５０を示す横断面図、図４は、電線のクランプ１０に組み込まれた金属緩衝材５０及び炭素繊維心材３０を示す斜視図である。説明中において、軸方向とは、素線３１の延びる方向を示し、素線３１に生じる引張力と同一の方向である。送電線のクランプは送電線の端部を固定するものであり、架線張力を保持するために要求される機械的把持力と、送電線を流れる電気を通す電導性の両方が要求される。   FIG. 1 is a longitudinal sectional view showing a one-body type electric wire clamp 10 according to the first embodiment of the present invention. FIG. 2 is a cross-sectional view of the electric wire clamp 10 taken along line AA in FIG. FIG. 3 is a cross-sectional view showing the metal cushioning material 50 incorporated in the electric wire clamp 10, and FIG. 4 shows the metal cushioning material 50 and the carbon fiber core material 30 incorporated in the electric wire clamp 10. It is a perspective view. In the description, the axial direction indicates the direction in which the strand 31 extends, and is the same direction as the tensile force generated in the strand 31. The clamp of the power transmission line fixes the end of the power transmission line, and both the mechanical gripping force required to maintain the overhead wire tension and the conductivity that conducts electricity flowing through the power transmission line are required.

電線のクランプ１０は、有底筒状のアルミスリーブ２０と、このアルミスリーブ２０に同軸的に配置された炭素繊維心材３０と、この炭素繊維心材３０の外周に設けられたアルミ撚り線（導電性金属線）４０と、炭素繊維心材３０とアルミ撚り線４０との間に配置された筒状の金属緩衝材５０とを備えている。金属緩衝材５０の内周面にはさらに硬質粒子（増摩材）６０が設けられている。硬質粒子６０は、例えば、直径０．０１〜０．５ｍｍのアルミナ又は炭化ケイ素である。   The electric wire clamp 10 includes a bottomed cylindrical aluminum sleeve 20, a carbon fiber core 30 coaxially disposed on the aluminum sleeve 20, and an aluminum stranded wire (conductive) provided on the outer periphery of the carbon fiber core 30. Metal wire) 40, and a cylindrical metal cushioning material 50 disposed between the carbon fiber core material 30 and the aluminum stranded wire 40. Hard particles (abrasive material) 60 are further provided on the inner peripheral surface of the metal cushioning material 50. The hard particles 60 are, for example, alumina or silicon carbide having a diameter of 0.01 to 0.5 mm.

アルミスリーブ２０には、このアルミスリーブ２０の底部２１側に緊張力接続部２２と、この緊張力接続部２２に取り付けられた電気接続部２３とを備えている。アルミスリーブ２０は、把持力と電導性の両方を分担する。   The aluminum sleeve 20 includes a tension force connection portion 22 on the bottom 21 side of the aluminum sleeve 20 and an electrical connection portion 23 attached to the tension force connection portion 22. The aluminum sleeve 20 shares both gripping force and electrical conductivity.

炭素繊維心材３０は、素線３１を１×７等の撚り線に成型した連続線条体であって（図４参照）、各素線３１は炭素繊維とマトリクス樹脂からなる連続繊維複合材から成っている。炭素繊維心材３０は軽量、高強度、耐食性、耐熱性、低線膨張、低クリープ性等、鋼撚り線にはない優れた機械特性がある。   The carbon fiber core 30 is a continuous filament formed by forming strands 31 into 1 × 7 strands (see FIG. 4), and each strand 31 is made of a continuous fiber composite material composed of carbon fibers and a matrix resin. It is made up. The carbon fiber core material 30 has excellent mechanical properties such as light weight, high strength, corrosion resistance, heat resistance, low linear expansion, and low creep properties that are not found in steel strands.

各素線３１には内層の保護や表面の摩擦力を高めるためにポリエステル等の有機繊維によるラッピング繊維３２が緻密に巻き付け被覆してある（図４参照）。巻き付け方向は、素線３１に生じる引張力と交差する方向に巻き付けられている。なお、ラッピング繊維３２の巻き付けが緻密なものに限られることなく、繊維幅に対し巻き付けピッチが大きく、巻き付けられていない部分と巻き付けられた部分が交互になっている、いわゆる縞模様状の被覆がされているものであってもよい。   Each strand 31 is covered with wrapping fibers 32 made of organic fibers such as polyester in order to protect the inner layer and increase the frictional force of the surface (see FIG. 4). The winding direction is wound in a direction that intersects the tensile force generated in the wire 31. The winding of the wrapping fiber 32 is not limited to a dense one, but a so-called striped coating in which a winding pitch is large with respect to the fiber width, and an unwrapped portion and a wound portion are alternated. It may be what has been done.

炭素繊維心材３０の素線３１への緻密なラッピング繊維３２の巻き付け被覆は、表面に微細な凹凸を形成するので、炭素繊維心材３０の表面の摩擦係数を高め、電線のクランプ１０の把持力を高める効果がある。   The wrapping coating of the fine wrapping fibers 32 on the strands 31 of the carbon fiber core material 30 forms fine irregularities on the surface, so that the friction coefficient of the surface of the carbon fiber core material 30 is increased and the gripping force of the wire clamp 10 is increased. There is an effect to increase.

アルミ撚り線４０は、アルミニウム線またはアルミニウム合金線を撚合せて形成されている。   The aluminum stranded wire 40 is formed by twisting an aluminum wire or an aluminum alloy wire.

金属緩衝材５０の材料は、亜鉛合金、アルミ合金、錫合金、マグネシウム合金等の合金、または、アルミニウムである。これらは融点が５５０℃以下であるため比較的成型しやすく、また弾性係数が１２０ＧＰａ以下と小さいため、圧縮により変形し、炭素繊維心材３０を適度に締める効果がある。銅合金を使用することもできる。これらの金属を使用した金属緩衝材５０の成型は鋳込成型やダイカスト成型や熱間鍛造等で行う。なお、錫合金は特に融点が低く、また濡れ性が良いため、型に入れた時の追従性が高い。   The material of the metal buffer material 50 is an alloy such as a zinc alloy, an aluminum alloy, a tin alloy, a magnesium alloy, or aluminum. Since these have a melting point of 550 ° C. or less, they are relatively easy to mold, and since the elastic modulus is as small as 120 GPa or less, they are deformed by compression and have an effect of appropriately tightening the carbon fiber core material 30. Copper alloys can also be used. The metal cushioning material 50 using these metals is formed by casting, die casting, hot forging, or the like. In addition, since a tin alloy has a particularly low melting point and good wettability, the followability when placed in a mold is high.

鋳込成型では、まず、炭素繊維心材３０を心型として、炭素繊維心材３０よりも大きめのパイプに入れ、その中に樹脂等を充填、硬化することで円柱に成型する。取り出した円柱を縦に２つ割、あるいは３つ割にして、炭素繊維心材３０を取り除くことで、炭素繊維心材３０の外周形状を内面に転写した、円柱状の２つ割、あるいは３つ割のマスタ型を得る。このマスタ型を、連結材の入った砂、石膏、耐熱シリコン樹脂等を使った鋳型材に埋め込み、固化したのち、割って、マスタ型を取り外す。このようにして得られた中空鋳型に溶融金属を流し込み、冷却固化した後に脱型して、成型体を取り出す。   In the casting molding, first, the carbon fiber core material 30 is used as a core mold, placed in a pipe larger than the carbon fiber core material 30, filled with resin or the like, and then molded into a cylinder. The removed cylinder is vertically divided into two or three, and the carbon fiber core material 30 is removed to transfer the outer peripheral shape of the carbon fiber core material 30 to the inner surface. Get the master type. This master mold is embedded in a mold material using sand, gypsum, heat-resistant silicon resin, or the like containing a connecting material, solidified, and then broken to remove the master mold. The molten metal is poured into the hollow mold thus obtained, cooled and solidified, then demolded, and the molded body is taken out.

ダイカスト成型に使う金型は、例えば、３次元計測器等で炭素繊維心材３０の形状を読み込み、機械切削等により２つ以上に分割できる金型を作る。これに溶融金属を注入後、直ちに冷却固化し、金型を開いて成型体を取り出す。   As the mold used for die casting, for example, the shape of the carbon fiber core material 30 is read with a three-dimensional measuring instrument or the like, and a mold that can be divided into two or more by mechanical cutting or the like is produced. After pouring molten metal into this, it is immediately cooled and solidified, and the mold is opened to take out the molded body.

熱間鍛造もダイカスト成型で使う金型と同様の製法で分割できる金型を製作し、予熱した金属を金型で挟み、プレスすることで、成型体を得る。   In hot forging, a mold that can be divided by the same manufacturing method as that used in die casting is manufactured, and a pre-heated metal is sandwiched between the molds and pressed to obtain a molded body.

上記のようにして得られた成型体は炭素繊維心材３０を心型としているため、いずれも炭素繊維心材３０の外周に係合する係合面（内周面にラッピング繊維３２に対応する凹凸）を有する縦方向に２分割、ないし３分割された円筒体からなる金属緩衝材５０の本体を形成する。   Since the molded body obtained as described above has the carbon fiber core material 30 as a core shape, any of the engaging surfaces that engage with the outer periphery of the carbon fiber core material 30 (unevenness corresponding to the wrapping fiber 32 on the inner peripheral surface). The main body of the metal cushioning material 50 is formed of a cylindrical body divided into two or three in the longitudinal direction.

硬質粒子６０は、金属緩衝材５０の内周面に均一に貼り付けるのが肝要である。貼り付ける方法として、あらかじめ樹脂性接着材を薄く金属緩衝材５０の内周面に塗布し、それに硬質粒子６０を吹き付ける方法がよい。あるいは、鋳型の内表面にあらかじめ硬質粒子６０を配置しておき、それに溶融金属を流し込んでもよい。また、合金にあらかじめ硬質粒子６０を練り混ぜておき、ダイカスト成型してもよい。成型後に硬質粒子６０が金属内に埋め込まれたときには、塩酸や硝酸等で成型体の表面をわずかに溶かすことで、表面に硬質粒子６０が現れる。このようにして、金属からなる緩衝材本体が作られ、さらにその内表面に硬質粒子が取り付けられて、緩衝材が作られる。   It is important that the hard particles 60 are uniformly attached to the inner peripheral surface of the metal cushioning material 50. As a method of pasting, a method in which a resinous adhesive is thinly applied in advance to the inner peripheral surface of the metal cushioning material 50 and the hard particles 60 are sprayed thereon is preferable. Alternatively, the hard particles 60 may be arranged in advance on the inner surface of the mold, and the molten metal may be poured into the mold. Alternatively, the hard particles 60 may be kneaded with the alloy in advance and die-cast. When the hard particles 60 are embedded in the metal after molding, the hard particles 60 appear on the surface by slightly dissolving the surface of the molded body with hydrochloric acid, nitric acid or the like. In this way, a cushioning material body made of metal is made, and hard particles are attached to the inner surface of the cushioning material body to make the cushioning material.

硬質粒子６０はメッシュサイズの異なる２つのふるいを使って、粒度をそろえることができる。巻き付け被覆の代表的厚さは０．１〜０．３ｍｍ程度であり、この場合には、使用する硬質粒子径は０．１〜０．５ｍｍ程度がよい。すなわち、硬質粒子径は巻き付け被覆厚と同等か、これよりも若干大きいので、巻き付け被覆の下層にある、炭素繊維とマトリクス樹脂のコンポジット層（炭素繊維心材３０の表面）に硬質粒子６０が食い込む。この食い込み量は僅かわずかであるので、コンポジット層、すなわち、炭素繊維心材３０の強度を負担する部分を損傷させることなく、アンカー効果を発揮する。   The hard particles 60 can have the same particle size by using two sieves having different mesh sizes. The typical thickness of the wound coating is about 0.1 to 0.3 mm. In this case, the hard particle diameter used is preferably about 0.1 to 0.5 mm. That is, since the hard particle diameter is equal to or slightly larger than the wound coating thickness, the hard particles 60 bite into the composite layer (the surface of the carbon fiber core 30) of the carbon fiber and the matrix resin in the lower layer of the wound coating. Since this amount of biting is very small, the anchor effect is exhibited without damaging the composite layer, that is, the portion bearing the strength of the carbon fiber core material 30.

このように構成された電線のクランプ１０は、次のようにして、送電線端部を固定する。すなわち、送電線端部のアルミ撚り線４０の撚りを解いて、炭素繊維心材３０を露出させる。露出した炭素繊維心材３０に２つ割、ないし３つ割の金属緩衝材５０を取り付ける。アルミ線を巻き戻し、それをアルミスリーブ２０に挿入し、２つ割ダイス装置により圧縮加工する。圧縮は、六角型仕上がりの２つ割りダイスを、油圧力でダイスを相互に合わせる方向にプレスすることで行われる。但し、六角に限らず、ダイス形状を変えて、円型や楕円型断面仕上がりであってもよい。スリーブはダイスよりも長いのが通常なので、圧縮位置を少しずつずらしながら、複数回の圧縮をすることで、スリーブ全体を圧縮する。このようにして、１ボディクランプは、アルミスリーブのみで炭素繊維心材３０とアルミ撚り線４０の両方を把持する構造であり、断面は中心から、炭素繊維心材３０、金属緩衝材５０、アルミスリーブ２０になる。   The electric wire clamp 10 thus configured fixes the end of the power transmission line as follows. In other words, the carbon fiber core material 30 is exposed by untwisting the aluminum stranded wire 40 at the end of the power transmission line. Two or three metal shock absorbing materials 50 are attached to the exposed carbon fiber core material 30. The aluminum wire is rewound, inserted into the aluminum sleeve 20, and compressed by a two-part die device. The compression is performed by pressing a hexagonal finished bisected die in a direction in which the dies are combined with each other by hydraulic pressure. However, the shape is not limited to a hexagon, and a circular or elliptical cross-section may be used by changing the die shape. Since the sleeve is usually longer than the die, the entire sleeve is compressed by performing multiple compressions while gradually shifting the compression position. In this way, the one body clamp has a structure in which both the carbon fiber core material 30 and the aluminum stranded wire 40 are gripped only by the aluminum sleeve, and the carbon fiber core material 30, the metal cushioning material 50, and the aluminum sleeve 20 are cross sections from the center. become.

このような電線のクランプ１０を用いて送電線を把持する場合、次のような効果がある。すなわち、金属緩衝材５０の弾性係数は材質により異なるが全体として概ね５０〜１２０ＧＰａの範囲にある。炭素繊維心材３０の弾性係数は代表的に１５０ＧＰａ、アルミ撚り線４０の弾性係数は代表的に８０ＧＰａである。すなわち、金属緩衝材５０の弾性係数はいずれも炭素繊維心材３０よりも小さいので、炭素繊維心材３０と比べ変形しやすく、圧縮によって金属緩衝材５０がやや変形し、炭素繊維心材３０の形状に隈なく密着し覆うことができる。   When a power transmission line is gripped using such a wire clamp 10, the following effects are obtained. That is, the elastic coefficient of the metal cushioning material 50 varies depending on the material, but is generally in the range of 50 to 120 GPa. The elastic modulus of the carbon fiber core 30 is typically 150 GPa, and the elastic modulus of the aluminum stranded wire 40 is typically 80 GPa. That is, since the elastic coefficient of the metal buffer material 50 is smaller than that of the carbon fiber core material 30, the metal buffer material 50 is easily deformed as compared with the carbon fiber core material 30, and the metal buffer material 50 is slightly deformed by compression, so It can be closely attached and covered.

さらに硬質粒子６０を金属緩衝材５０と炭素繊維心材３０の間に介在させることで、硬質粒子６０は金属緩衝材５０と炭素繊維心材３０の間にアンカーとしての役目を果たし、金属緩衝材５０がより確実に炭素繊維心材３０を把持する。   Further, by interposing the hard particles 60 between the metal buffer material 50 and the carbon fiber core material 30, the hard particles 60 serve as an anchor between the metal buffer material 50 and the carbon fiber core material 30. The carbon fiber core material 30 is gripped more reliably.

ここに、金属緩衝材５０、アルミ撚り線４０、炭素繊維心材３０が相互に強固に密着し、かつ硬質粒子６０の介在によるアンカー効果によって、炭素繊維心材３０が抜けることなく、送電線全体のグリップ力を発揮させることができる。さらに、金属緩衝材５０の材質として、錫合金を用いた場合は、炭素繊維心材３０への食いつきが良好で、アンカー効果を増大させることができる。   Here, the metal buffer material 50, the aluminum stranded wire 40, and the carbon fiber core material 30 are firmly adhered to each other, and the carbon fiber core material 30 is not pulled out by the anchor effect due to the intervention of the hard particles 60, so that the grip of the entire transmission line is removed. You can show your power. Furthermore, when a tin alloy is used as the material of the metal buffer material 50, the biting to the carbon fiber core material 30 is good, and the anchor effect can be increased.

硬質粒子６０は摩擦を高めるために効果的な寸法にしてあるので、炭素繊維心材３０を損傷させる虞はない。   Since the hard particles 60 have effective dimensions for increasing friction, there is no possibility of damaging the carbon fiber core material 30.

したがって、炭素繊維心材３０の外周面に係合する内周面を形成し、割り型となった金属緩衝材５０であって、内周表面に、多数の硬質粒子６０を備えた金属緩衝材５０を、炭素繊維心材３０と導送電線撚り合わせ層との間に介在させ、最外層のアルミスリーブ２０を圧縮させることで、炭素繊維心材３０の損傷を生じることなく、炭素繊維心材３０と金属緩衝材５０の摩擦力を高め、結果として、炭素繊維心材３０・金属緩衝材５０・アルミ撚り線４０・アルミスリーブ２０を一体化することで、送電線の高い緊張力での把持を実現することが可能となる。なお、ラッピング繊維３２が設けられている場合には、硬質粒子６０を用いなくてもよい。   Therefore, an inner peripheral surface that engages with the outer peripheral surface of the carbon fiber core material 30 is formed, and the metal buffer material 50 is split, and the metal buffer material 50 includes a large number of hard particles 60 on the inner peripheral surface. Is interposed between the carbon fiber core material 30 and the conductive wire twisted layer, and the outermost aluminum sleeve 20 is compressed, so that the carbon fiber core material 30 and the metal buffer are not damaged without causing damage to the carbon fiber core material 30. By increasing the frictional force of the material 50 and integrating the carbon fiber core material 30, the metal cushioning material 50, the aluminum stranded wire 40, and the aluminum sleeve 20 as a result, it is possible to realize gripping of the transmission line with high tension. It becomes possible. In addition, when the wrapping fiber 32 is provided, the hard particles 60 may not be used.

したがって、本実施の形態に係る電線のクランプ１０は、簡単な構成で十分で安定した把持力を有する。   Therefore, the electric wire clamp 10 according to the present embodiment has a sufficient and stable gripping force with a simple configuration.

図５は金属緩衝材５０の変形例に係る金属緩衝材５０Ａを示す横断面図である。上述した金属緩衝材５０は２つ割であったが、金属緩衝材５０Ａは３つ割である。この場合であっても同様の効果を得ることができる。   FIG. 5 is a cross-sectional view showing a metal cushioning material 50A according to a modification of the metal cushioning material 50. The metal cushioning material 50 described above is divided into two parts, but the metal cushioning material 50A is divided into three parts. Even in this case, the same effect can be obtained.

図６は金属緩衝材５０及び炭素繊維心材３０の変形例に係る金属緩衝材５０Ａ及び炭素繊維心材３０Ａを示す斜視図である。すなわち、素線３１にラッピング繊維３２等の被覆が全く無い炭素繊維心材にも適用できる。   FIG. 6 is a perspective view showing a metal buffer material 50A and a carbon fiber core material 30A according to a modification of the metal buffer material 50 and the carbon fiber core material 30. FIG. That is, the present invention can also be applied to a carbon fiber core material in which the element wire 31 is not covered with the wrapping fiber 32 or the like.

この他、素線３１にテープ状のものが被覆されたもの、被覆が密ではなく疎に巻かれていて素線３１表面に被覆の有る部分と無い部分が混在しまだら模様となっているもの、さらに、撚り線状でなく、複数の素線３１を使い、４本組、６本組や８本組等の組み紐構造にした炭素繊維心材にも適用できる。このような場合でも、金属緩衝材５０Ａの内面に設置した硬質粒子６０（図省略）が炭素繊維心材３０Ａと金属緩衝材５０Ａの両方にアンカーの作用をするので、炭素繊維心材３０Ａと金属緩衝材５０Ａが一体化する。被覆の無い炭素繊維心材３０Ａの場合には、０．０１〜０．１ｍｍのように硬質粒子径を小さく調整することで、炭素繊維心材の強度を負担する部分を損傷させることなく、アンカー効果を発揮することができる。   Other than this, the wire 31 is covered with a tape-like material, the coating is not densely wound but sparsely wrapped, and the surface of the wire 31 is mixed with a portion having a coating and a mottled pattern. Furthermore, the present invention can be applied to a carbon fiber core material having a braided structure such as a four-piece set, a six-piece set, or an eight-piece set using a plurality of strands 31 instead of a stranded wire. Even in such a case, since the hard particles 60 (not shown) installed on the inner surface of the metal cushioning material 50A act as anchors on both the carbon fiber core material 30A and the metal cushion material 50A, the carbon fiber core material 30A and the metal cushioning material. 50A is integrated. In the case of the carbon fiber core material 30A without coating, the anchor effect can be obtained without damaging the portion bearing the strength of the carbon fiber core material by adjusting the hard particle diameter as small as 0.01 to 0.1 mm. It can be demonstrated.

図７は本発明の第２の実施の形態に係る２ボディタイプの電線のクランプ１０Ａを示す縦断面図、図８は電線のクランプ１０Ａを図７中Ｂ−Ｂ線で切断して矢印方向に見た横断面図である。なお、図７，８において、図１〜図６と同一機能部分には同一符号を付し、その詳細な説明は省略する。２ボディタイプは構造が複雑であるが、炭素繊維心材３０とアルミ撚り線４０の把持を別々に把持するので、クランプの設計自由度が大きい。１ボディタイプは構造がシンプルであるが、一度の圧縮で、心材とアルミ線の両方を把持する必要があるため、圧縮率の微調整が必要とされる。   FIG. 7 is a longitudinal sectional view showing a two-body type electric wire clamp 10A according to the second embodiment of the present invention. FIG. 8 is a cross-sectional view of the electric wire clamp 10A taken along line BB in FIG. FIG. 7 and 8, the same functional parts as those in FIGS. 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted. Although the structure of the two-body type is complicated, since the gripping of the carbon fiber core material 30 and the aluminum stranded wire 40 is separately gripped, the degree of freedom in designing the clamp is great. The 1 body type has a simple structure, but it is necessary to finely adjust the compression ratio because it is necessary to grip both the core material and the aluminum wire by one compression.

電線のクランプ１０Ａは、有底筒状のアルミスリーブ２０と、このアルミスリーブ２０に同軸的に配置された炭素繊維心材３０と、この炭素繊維心材３０の外周に設けられたアルミ撚り線（導電性金属線）４０と、炭素繊維心材３０とアルミ撚り線４０との間に配置された筒状の金属緩衝材５０と、有底筒状の鋼スリーブ７０と、炭素繊維心材３０と鋼スリーブ７０との間に配置された筒状の金属緩衝材５０とを備えている。金属緩衝材５０の内周面にはさらに硬質粒子６０が設けられている。硬質粒子６０は、例えば、直径０．０１〜０．５ｍｍのアルミナ又は炭化ケイ素である。   The electric wire clamp 10 </ b> A includes a bottomed cylindrical aluminum sleeve 20, a carbon fiber core 30 coaxially disposed on the aluminum sleeve 20, and an aluminum stranded wire (conductive) provided on the outer periphery of the carbon fiber core 30. Metal wire) 40, a cylindrical metal cushioning material 50 disposed between the carbon fiber core material 30 and the aluminum stranded wire 40, a bottomed cylindrical steel sleeve 70, a carbon fiber core material 30 and a steel sleeve 70. And a cylindrical metal cushioning material 50 disposed between the two. Hard particles 60 are further provided on the inner peripheral surface of the metal cushioning material 50. The hard particles 60 are, for example, alumina or silicon carbide having a diameter of 0.01 to 0.5 mm.

アルミスリーブ２０には、このアルミスリーブ２０の底部２１側に緊張力接続部２２と、この緊張力接続部２２に取り付けられた電気接続部２３とを備えている。   The aluminum sleeve 20 includes a tension force connection portion 22 on the bottom 21 side of the aluminum sleeve 20 and an electrical connection portion 23 attached to the tension force connection portion 22.

アルミ撚り線４０の先端側は、段剥ぎされて、炭素繊維心材３０が露出されており、この露出された炭素繊維心材３０は、鋼スリーブ７０に挿入され、硬化性樹脂により接着固定されている。なお、把持力は鋼スリーブ７０が分担し、電導性はアルミスリーブ２０が分担する。   The tip end side of the aluminum stranded wire 40 is stepped off to expose the carbon fiber core material 30. The exposed carbon fiber core material 30 is inserted into the steel sleeve 70 and bonded and fixed by a curable resin. . The gripping force is shared by the steel sleeve 70, and the electrical conductivity is shared by the aluminum sleeve 20.

このように構成された電線のクランプ１０Ａは、次のようにして、送電線端部を固定する。すなわち、全体に被せることになるアルミスリーブ２０を送電線に通しておく。送電線端部の、鋼スリーブ７０に挿入する長さ相当位置で、アルミ撚り線４０を切断し、炭素繊維心材３０を露出させ、いわゆる段付きの状態にする。露出した炭素繊維心材３０に２つ割の金属緩衝材５０を取り付け、それを鋼スリーブ７０に挿入し、鋼スリーブ７０を圧縮する。ついでアルミ撚り線４０の撚りを解いて、炭素繊維心材３０を露出させ、そこに金属緩衝材５０を取り付け、さらにその上にアルミ撚り線４０を巻き戻し、次いで、先に通しておいたアルミスリーブ２０を引き戻し、それを２つ割ダイス装置により圧縮加工する。圧縮形状は上記と同様に六角が普通であるが、円型や楕円型断面仕上がりであってもよい。   The thus configured electric wire clamp 10A fixes the end of the power transmission line as follows. That is, the aluminum sleeve 20 to be covered over is passed through the power transmission line. The aluminum stranded wire 40 is cut at a position corresponding to the length to be inserted into the steel sleeve 70 at the end of the power transmission line, and the carbon fiber core material 30 is exposed to form a so-called stepped state. A split metal cushion 50 is attached to the exposed carbon fiber core 30 and inserted into the steel sleeve 70 to compress the steel sleeve 70. Next, the twisted aluminum wire 40 is unwound to expose the carbon fiber core material 30, the metal buffer material 50 is attached thereto, the aluminum twisted wire 40 is further rewound thereon, and then the aluminum sleeve previously passed through 20 is pulled back, and it is compressed by a two-part die device. The compression shape is usually hexagonal as described above, but may be circular or elliptical in cross section.

鋼スリーブ７０の端部には緊張力接続部７２と、中間部にはアルミスリーブ２０との機械的接合のための表面凹凸７１がある。表面凹凸７１は切削や鍛造等によりあらかじめ加工してある。   The end portion of the steel sleeve 70 has a tension connecting portion 72 and the intermediate portion has a surface irregularity 71 for mechanical joining with the aluminum sleeve 20. The surface irregularities 71 are processed in advance by cutting or forging.

アルミスリーブ２０には全長を通して貫通穴があり、端部には電気接続部２３がある。   The aluminum sleeve 20 has a through hole through its entire length, and has an electrical connection 23 at the end.

上述のように、段剥ぎして露出した炭素繊維心材３０は、介在させた金属緩衝材５０とともに、鋼スリーブ７０の圧縮によって一体化している。また巻き戻したアルミ撚り線４０の部分では、炭素繊維心材３０、金属緩衝材５０、アルミ撚り線４０、アルミスリーブ２０が、アルミスリーブ２０の圧縮によって一体化している。さらに鋼スリーブ７０の表面凹凸７１の位置においてもアルミスリーブ２０を圧縮するので、アルミスリーブ２０の内側が鋼スリーブの表面凹凸７１の形状をたどって変形し、相互にかみ込むことにより、鋼スリーブ７０とアルミスリーブ２０が一体化する。   As described above, the carbon fiber core material 30 exposed by stripping is integrated by the compression of the steel sleeve 70 together with the intervening metal buffer material 50. In the portion of the stranded aluminum wire 40 that has been rewound, the carbon fiber core material 30, the metal buffer material 50, the stranded aluminum wire 40, and the aluminum sleeve 20 are integrated by compression of the aluminum sleeve 20. Further, since the aluminum sleeve 20 is also compressed at the position of the surface irregularity 71 of the steel sleeve 70, the inner side of the aluminum sleeve 20 follows the shape of the surface irregularity 71 of the steel sleeve and is deformed and bites into the steel sleeve 70. And the aluminum sleeve 20 are integrated.

このようにして２ボディクランプでは、１ボディタイプと同様のアルミスリーブ２０の圧縮による炭素繊維心３０とアルミ撚り線４０の把持に加え、鋼スリーブ７０の圧縮による炭素繊維心材の把持を併用し、これらが一体化した構造をしている。そして、それぞれの部分において金属緩衝材５０を介在させているため、高い把持力を発揮することができる。   Thus, in the two-body clamp, in addition to the gripping of the carbon fiber core 30 and the aluminum strand 40 by the compression of the aluminum sleeve 20 similar to the one-body type, the gripping of the carbon fiber core material by the compression of the steel sleeve 70 is used in combination. These have an integrated structure. And since the metal shock absorbing material 50 is interposed in each part, a high gripping force can be exhibited.

アルミスリーブ２０や鋼スリーブ７０の断面は筒状が代表的である。六角ダイスを使った圧縮により、アルミスリーブ２０や鋼スリーブ７０の外形状は略六角形状になる。圧縮の強さは心材径、アルミ線径、緩衝材外径、圧縮ダイス径等により調整可能であり、圧縮力を調整して圧縮の強さを調整してもよい。   The cross section of the aluminum sleeve 20 or the steel sleeve 70 is typically cylindrical. By compression using a hexagonal die, the outer shape of the aluminum sleeve 20 or the steel sleeve 70 becomes a substantially hexagonal shape. The compression strength can be adjusted by the core material diameter, the aluminum wire diameter, the buffer material outer diameter, the compression die diameter, etc., and the compression force may be adjusted to adjust the compression strength.

このようにして、圧縮加工により外部から内部に圧力が伝達し、内部の各層が相互に密着する。仕上がりとしては、その断面形状でみると、外形は六角であり、内部は緻密に充填した構造となっている。すなわち、アルミ撚り線４０は略六角状になり相互に密接し、アルミ撚り線４０間の隙間は無くなり中実な構造となる。さらに、金属緩衝材５０はもともと炭素繊維心材３０の外層内周面に係合する係合面を形成した一対の半円筒体からなるため、概ね炭素繊維心材３０との間の隙間が無いのであるが、適度な柔らかさがあるため、圧縮により変形し、その結果、硬質粒子６０が炭素繊維心材３０と金属緩衝材５０の間に適度に食い込むことができる。   In this way, pressure is transmitted from the outside to the inside by compression processing, and the internal layers adhere to each other. In terms of the finished shape, in terms of the cross-sectional shape, the outer shape is hexagonal, and the inside is densely filled. That is, the aluminum stranded wires 40 are substantially hexagonal and in close contact with each other, and the gap between the aluminum stranded wires 40 is eliminated, resulting in a solid structure. Furthermore, since the metal buffer material 50 is originally composed of a pair of semi-cylindrical bodies formed with engagement surfaces that engage with the inner peripheral surface of the outer layer of the carbon fiber core material 30, there is generally no gap between the carbon fiber core material 30. However, since it has an appropriate softness, it is deformed by compression, and as a result, the hard particles 60 can bite between the carbon fiber core material 30 and the metal buffer material 50 appropriately.

炭素繊維心材３０は金属緩衝材４０と密に固着し、両者の間には硬質粒子６０が介在している。この硬質粒子６０が炭素繊維心材３０と金属緩衝材４０のそれぞれに食い込みアンカー効果を発揮することで、高い把持力を発揮する。   The carbon fiber core material 30 is closely fixed to the metal buffer material 40, and the hard particles 60 are interposed therebetween. This hard particle 60 bites into each of the carbon fiber core material 30 and the metal buffer material 40 and exhibits an anchor effect, thereby exhibiting a high gripping force.

炭素繊維心材３０が高強度になった結果、従来と同じ径でも、従来より高い把持力が要求される場合や、炭素繊維心の径が大きくなり、より大荷重での把持力が要求される場合に、本考案は特に効果を発揮する。また、炭素繊維材を構成する各素線が、繊維巻き付け被覆が無いものであっても、緩衝材内面に設置する硬質粒子サイズを調整することで、高い把持力を実現する。   As a result of the high strength of the carbon fiber core material 30, even when the same diameter as the conventional one is required, a higher gripping force is required than before, or the diameter of the carbon fiber core is increased and a gripping force with a larger load is required. In some cases, the present invention is particularly effective. Moreover, even if each strand constituting the carbon fiber material has no fiber wrapping coating, a high gripping force is realized by adjusting the size of the hard particles placed on the inner surface of the buffer material.

このような電線のクランプ１０Ａを用いて送電線を把持する場合であっても、上述した電線のクランプ１０Ａと同様の効果が得られる。   Even when the power transmission line is gripped using such an electric wire clamp 10A, the same effect as the electric wire clamp 10A described above can be obtained.

なお、本発明は前記実施の形態に限定されるものではない。各部材の寸法や形状は一例であり、これらに限られるものではない。この他、本発明の要旨を逸脱しない範囲で種々変形実施可能であるのは勿論である。   The present invention is not limited to the above embodiment. The dimension and shape of each member are examples, and are not limited to these. Of course, various modifications can be made without departing from the scope of the present invention.

簡単な構成で十分で安定した把持力を有する電線のクランプが得られる。   An electric wire clamp having a sufficient and stable gripping force can be obtained with a simple configuration.

Claims (12)

炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維心材と、撚合わせ送電線との間に介挿された筒状の金属緩衝材と、
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
A cylindrical metal cushioning material interposed between the carbon fiber core material and the twisted transmission line;
A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、
前記炭素繊維心材と、撚合わせ送電線との間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状の金属緩衝材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
A cylindrical metal cushioning material interposed between the carbon fiber core material and the twisted power transmission line, and formed with irregularities corresponding to the wrapping fiber on the inner peripheral surface,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、
前記炭素繊維心材と、撚合わせ送電線との間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状の金属緩衝材と、
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
A cylindrical metal cushioning material interposed between the carbon fiber core material and the twisted power transmission line, and formed with irregularities corresponding to the wrapping fiber on the inner peripheral surface,
A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維心材と、撚合わせ送電線との間に介挿された筒状で錫材を含む金属緩衝材と、
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
A metal cushioning material containing a tin material in a cylindrical shape interposed between the carbon fiber core material and the twisted transmission line, and
A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、
前記炭素繊維心材と、撚合わせ送電線との間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状で錫材を含む金属緩衝材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
A metal buffer material including a tin material in a cylindrical shape, which is interposed between the carbon fiber core material and the twisted power transmission line, and in which an unevenness corresponding to the wrapping fiber is formed on an inner peripheral surface,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、
前記炭素繊維心材と、撚合わせ送電線との間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状で錫材を含む金属緩衝材と、
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、
前記撚合わせ送電線の外周側に設けられ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。 Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
A metal buffer material including a tin material in a cylindrical shape, which is interposed between the carbon fiber core material and the twisted power transmission line, and in which an unevenness corresponding to the wrapping fiber is formed on an inner peripheral surface,
A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
A clamp for a transmission line, comprising: a twisted transmission line, a cylindrical sleeve that compresses and fixes the twisted transmission line, the metal cushioning material, and the carbon fiber core material. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿された筒状の金属緩衝材と、  A cylindrical metal cushioning material interposed between the carbon fiber core material and the steel sleeve;
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、  A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、  Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状の金属緩衝材と、  A cylindrical metal cushioning material interposed between the carbon fiber core material and the steel sleeve, and having an inner peripheral surface formed with irregularities corresponding to the wrapping fiber,
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、  Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状の金属緩衝材と、  A cylindrical metal cushioning material interposed between the carbon fiber core material and the steel sleeve, and having an inner peripheral surface formed with irregularities corresponding to the wrapping fiber,
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、  A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿された筒状で錫材を含む金属緩衝材と、  A metal cushioning material containing a tin material in a cylindrical shape interposed between the carbon fiber core material and the steel sleeve;
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、  A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、  Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状で錫材を含む金属緩衝材と、  A metal buffer material including a tin material in a cylindrical shape, which is interposed between the carbon fiber core material and the steel sleeve, and has an inner peripheral surface corresponding to the wrapping fiber, and
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp. 炭素繊維を撚り線状に成形した炭素繊維心材と、この炭素繊維心材の外周側に設けられ、導電用金属線を撚合わせて形成された撚合わせ送電線とを有する送電線の端部を把持する送電線のクランプにおいて、  Grasping the end of a transmission line having a carbon fiber core material formed by twisting carbon fibers into a stranded wire and a twisted transmission line provided by twisting conductive metal wires provided on the outer peripheral side of the carbon fiber core material In the transmission line clamp
内部で前記炭素繊維心材を保持する筒状の鋼スリーブと、  A tubular steel sleeve holding the carbon fiber core material inside;
前記炭素繊維の外周面に、この炭素繊維に生じる引張力と交差する方向に巻き付けられたラッピング繊維と、  Wrapping fibers wound around the outer circumferential surface of the carbon fiber in a direction crossing a tensile force generated in the carbon fiber;
前記炭素繊維心材と、前記鋼スリーブとの間に介挿され、内周面に前記ラッピング繊維に対応する凹凸が形成された筒状で錫材を含む金属緩衝材と、  A metal buffer material including a tin material in a cylindrical shape, which is interposed between the carbon fiber core material and the steel sleeve, and has an inner peripheral surface corresponding to the wrapping fiber, and
この金属緩衝材の内周面側に配置され、アルミナ又は炭化ケイ素のうち少なくとも一方を含む増摩材と、  A lubricant that is disposed on the inner peripheral surface side of the metal cushioning material and includes at least one of alumina or silicon carbide,
前記撚合わせ送電線の外周側に設けられ、前記鋼スリーブ、前記撚合わせ送電線、前記金属緩衝材、前記炭素繊維心材を圧縮固定する筒状のスリーブとを備えていることを特徴とする送電線のクランプ。  A steel sleeve, the twisted power transmission line, the metal buffer material, and a cylindrical sleeve that compresses and fixes the carbon fiber core material are provided on the outer peripheral side of the twisted power transmission line. Wire clamp.
JP2016517766A 2014-05-08 2014-05-08 Power cable clamp Expired - Fee Related JP6201042B2 (en)

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WO2021016569A3 (en) * 2018-01-24 2021-03-04 Ctc Global Corporation Termination arrangement for an overhead electrical cable

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AT16137U1 (en) * 2017-09-20 2019-02-15 Teufelberger Seil Ges M B H End connection for wire rope
WO2021232027A1 (en) * 2020-05-14 2021-11-18 Ctc Global Corporation Termination arrangement for an overhead electrical cable including a tensile strain sheath
US20240103239A1 (en) * 2021-03-05 2024-03-28 Ctc Global Corporation Strength member assemblies and overhead electrical cable installations incorporating optical fibers

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US6015953A (en) * 1994-03-11 2000-01-18 Tohoku Electric Power Co., Inc. Tension clamp for stranded conductor
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2021016569A3 (en) * 2018-01-24 2021-03-04 Ctc Global Corporation Termination arrangement for an overhead electrical cable
US11329467B2 (en) 2018-01-24 2022-05-10 Ctc Global Corporation Termination arrangement for an overhead electrical cable

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