JP6771957B2 - Cutting device for jumper wire connection of retaining clamp and transmission line replacement or removal method using this - Google Patents

Cutting device for jumper wire connection of retaining clamp and transmission line replacement or removal method using this Download PDF

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JP6771957B2
JP6771957B2 JP2016113615A JP2016113615A JP6771957B2 JP 6771957 B2 JP6771957 B2 JP 6771957B2 JP 2016113615 A JP2016113615 A JP 2016113615A JP 2016113615 A JP2016113615 A JP 2016113615A JP 6771957 B2 JP6771957 B2 JP 6771957B2
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cutting
transmission line
sliding
clamp
jumper wire
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JP2017221022A (en
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賢一 宮本
賢一 宮本
広樹 石田
広樹 石田
康浩 石塚
康浩 石塚
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SUN-TECH LIMITED
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この発明は、送電線の旧線を新規な線に張替える等の際、旧線によって新線をけん引して鉄塔箇所に吊るした金車を円滑に通過させるため、引留クランプのジャンパー線の接続部を切断する装置及びこれを用いた送電線の張替え又は撤去工法に関するものである。 According to the present invention, when the old line of the transmission line is replaced with a new line, the jumper line of the retaining clamp is connected in order to tow the new line by the old line and allow the gold wheel suspended at the steel tower to pass smoothly. It relates to a device for cutting a part and a method of replacing or removing a transmission line using the device.

多数の耐張鉄塔に支持された送電線の旧線を新規な送電線に張替えるに当たって、旧線の端部に新線を接続して旧線を他端から引っ張って、多数の耐張鉄塔間に新線を延線する工法がある。しかしながら、各耐張鉄塔間の送電線の端部は当該耐張鉄塔に支持した引留クランプで引留められ、隣接する径間の送電線相互を、前記各引留クランプのジャンパー線接続部に両端を接続したジャンパー線で接続している。 When replacing an old transmission line supported by a large number of tension towers with a new transmission line, connect the new line to the end of the old line and pull the old line from the other end to create a large number of tension towers. There is a construction method to extend a new line in between. However, the ends of the transmission lines between the tension towers are fastened by the retention clamps supported by the tension towers, and the transmission lines of adjacent spans are connected to each other at the jumper wire connection of the retention clamps at both ends. It is connected by the connected jumper wire.

そして、上記工法はこれらのジャンパー線を引留クランプから外し、隣接する引留クランプ相互を割ワイヤで接続して一本の送電線として各耐張鉄塔に吊るした金車に掛けて当該送電線の一端から引っ張る方法である。ところが、前記各引留クランプは前記ジャンパー線接続部が片側に羽子板状に突設しているため、上記各金車を通過できない。 Then, in the above construction method, these jumper wires are removed from the retention clamps, adjacent retention clamps are connected to each other with split wires, and one transmission line is hung on a gold wheel suspended from each tension tower as one transmission line. It is a method of pulling from. However, since the jumper wire connecting portion of each of the retaining clamps is projected on one side in the shape of a battledore, it cannot pass through each of the metal wheels.

そこで、従来は各引留クランプ手前の送電線を切断して当該送電線の切断端に短い棒状の延線クランプを接続して隣接する延線クランプ相互を割ワイヤで接続して一本の送電線とし、これらを各耐張鉄塔に吊るした金車に掛けて一端から引っ張り、旧線を撤去し、かつ新線を延線して張替えている。 Therefore, conventionally, the transmission line in front of each retention clamp is cut, a short rod-shaped extension clamp is connected to the cut end of the transmission line, and adjacent extension clamps are connected to each other with a split wire to form a single transmission line. Then, these are hung on a gold wheel hung on each tension tower and pulled from one end, the old line is removed, and the new line is extended and replaced.

しかしながら、前記引留クランプを外して延線クランプを接続し、隣接する延線クランプを割ワイヤで接続する作業は手間がかかる。そこで、牽引前に各引留クランプの前記ジャンパー線接続部箇所を切断して引留クランプの外周に突起物がないようにした状態で旧線を各耐張鉄塔の金車に通し、耐張鉄塔間に新線を延線する等の方法が開発された。 However, it is troublesome to remove the retaining clamp, connect the wire drawing clamp, and connect the adjacent wire drawing clamp with a split wire. Therefore, before towing, the old wire is passed through the metal wheel of each tension tower with the jumper wire connection portion of each retention clamp cut so that there are no protrusions on the outer circumference of the retention clamp, and between the tension towers. A method such as extending a new line was developed.

このジャンパー線接続部の切断装置については、特許文献1及び特許文献2に示すものがある。 The cutting device of the jumper wire connection portion is shown in Patent Document 1 and Patent Document 2.

特許文献1の「引止クランプの羽子板部切断用ジグ」は、方形棒の両端に脚を設けたフレームを用意し、前記両脚端には引止クランプの所定箇所に被挿嵌合可能な切込みを入れておき、方形棒に沿い摺動可能なブロックの下部に方形棒と直角方向の溝を穿ち、摺動板を摺動可能に挿入し、この摺動板をプレスの背面に軸方向に固定し、プレスを直角2方向に移動可能とし、フレームの両脚を引止クランプへ被挿係止したとき、プレスの対向切刃が引止クランプの軸線と同一平面内にあるようにした構成である。 For the "jig for cutting the battledore portion of the retaining clamp" of Patent Document 1, a frame having legs provided at both ends of the rectangular rod is prepared, and cuts that can be inserted and fitted at predetermined positions of the retaining clamp are provided at the ends of both legs. Is inserted, a groove in the direction perpendicular to the rectangular rod is drilled in the lower part of the block that can slide along the rectangular rod, and the sliding plate is slidably inserted, and this sliding plate is axially inserted into the back surface of the press. It is fixed, the press can be moved in two directions at right angles, and when both legs of the frame are inserted and locked in the retaining clamp, the facing cutting edge of the press is in the same plane as the axis of the retaining clamp. is there.

また、特許文献2の「引留クランプのジャンパー線接続部の切断装置」は、引留クランプに切込みを入れる切断工具が、引留クランプに固定する取付金具から引留クランプと平行に延びるガイドレールを介してジャンパー線接続部に配置されている。当該切断工具はガイド体によりガイドレールに移動可能に支持される。ガイド体に固定した可搬式油圧プレスの対向部に固定刃ユニットと可動刃ユニットを装着する。各ユニットは横切り刃、中間片、縦切り刃に回転軸を貫通させて一体に連結し、フレームに固定した取付部材に移動可能に支持させる。縦切り刃又は横切り刃の一方を、取付部材の溝内に出没する係合ピンにより、所定の切り込み動作位置に固定すれば、他方を退避位置で刃先を突き合せないように反転できるので、切り込み動作を妨げないものである。 Further, in Patent Document 2, "a cutting device for a jumper wire connection portion of a retention clamp", a cutting tool for making a cut in the retention clamp is a jumper via a guide rail extending in parallel with the retention clamp from a mounting bracket fixed to the retention clamp. It is located at the line connection. The cutting tool is movably supported by a guide body on a guide rail. The fixed blade unit and the movable blade unit are attached to the opposite parts of the portable hydraulic press fixed to the guide body. Each unit is integrally connected to the horizontal cutting blade, the intermediate piece, and the vertical cutting blade through the rotating shaft, and is movably supported by the mounting member fixed to the frame. If one of the vertical cutting blade and the horizontal cutting blade is fixed at a predetermined cutting operation position by an engaging pin that appears and disappears in the groove of the mounting member, the other can be reversed at the retracted position so that the cutting edges do not abut each other. It does not interfere with the operation.

特開平09−135511号公報Japanese Unexamined Patent Publication No. 09-135511 特開2008−109801号公報Japanese Unexamined Patent Publication No. 2008-109801

上記特許文献1及び2の切断装置はいずれも、引留クランプのジャンパー線接続部を含むクランプの長手方向及びその内側のクランプの円周に夫々油圧プレスにより切込みを入れて、当該引留クランプのアルミスリーブ部分を割るものである。従って、引留クランプの長手方向に対して直角な方向に切断工具を配置して、当該切断工具の対向する刃を相互に近づけて上記アルミスリーブの側面部分を割らなければならず、これらの対向する刃の反力受けが引留クランプと直角な方向となり、不安定である。また、いずれの場合も横切り刃と縦切り刃の2組を用意しておかなければならない。 In each of the cutting devices of Patent Documents 1 and 2, a notch is made by a hydraulic press in the longitudinal direction of the clamp including the jumper wire connecting portion of the retaining clamp and the circumference of the clamp inside the clamp, respectively, and the aluminum sleeve of the retaining clamp. It breaks the part. Therefore, the cutting tools must be arranged in a direction perpendicular to the longitudinal direction of the retaining clamp, and the opposing blades of the cutting tools must be brought close to each other to break the side surface portions of the aluminum sleeve, which face each other. The reaction force receiver of the blade is in the direction perpendicular to the retention clamp, which is unstable. Further, in either case, two sets of a horizontal cutting blade and a vertical cutting blade must be prepared.

しかも、特許文献1ではいちいち横切り刃と縦切り刃を取り替えて装着しなければならない。また、特許文献2のものは横切り刃と縦切り刃は一体となっているが、これらも交換しなければならない。即ち、係合ピンを抜いて、横切り刃と縦切り刃を取付部材の嵌合孔内をスライドさせて所定位置で係合ピンを再び嵌め、その位置を変えなければならない。この様に引留クランプの切断に際して手間のかかるものである。 Moreover, in Patent Document 1, the horizontal cutting blade and the vertical cutting blade must be replaced and mounted one by one. Further, in Patent Document 2, the horizontal cutting blade and the vertical cutting blade are integrated, but these must also be replaced. That is, the engaging pin must be pulled out, the horizontal cutting blade and the vertical cutting blade must be slid in the fitting hole of the mounting member to refit the engaging pin at a predetermined position, and the position must be changed. In this way, it takes time and effort to cut the retaining clamp.

そこで、この発明は、引留クランプのジャンパー線の接続部を極めて容易かつ確実に切断でき、切断外径が円形となり、スムーズに金車を通過できる切断装置及びこれを用いた送電線の新旧線の張替え又は送電線の撤去工法を提供するものである。 Therefore, according to the present invention, the connection portion of the jumper wire of the retaining clamp can be cut extremely easily and surely, the cutting outer diameter is circular, and the cutting device can smoothly pass through the metal wheel, and the old and new transmission lines using the cutting device. It provides a method of re-covering or removing transmission lines.

請求項1の発明は、引留クランプのスリーブ部に被せて固定する一定長の筒状固定フレームと、当該筒状固定フレームに支持され、電線に沿って突出するアーム状固定フレームとを有する固定支持体と、当該固定支持体のアーム状固定フレームに、当該アーム状固定フレームに沿って摺動自在に支持された可動フレームと当該可動フレームに支持され、かつ前記固定支持体の筒状固定フレームに回転自在に被冠された摺動回転筒とから成る摺動支持体とから構成され、前記固定支持体は、筒状固定フレームが上下二つ割で取り外し、固定自在となっており、前記摺動支持体の摺動回転筒の先端には段部を介して引留クランプのスリーブ外周径よりやや大きい内周径を有し、先端面に環状の切削刃を有する切削筒を一体に設け、前記摺動回転筒と切削筒とは上下二つ割となって取り外し自在に固定され、前記摺動回転筒を回転させる回転駆動手段が可動フレームに設けられ、また、可動フレームを動かす摺動駆動手段が前記アーム状固定フレームに設けられ、当該摺動駆動手段による可動フレームの前記引留クランプのジャンパー線接続部方向への摺動及び前記回転駆動手段による摺動回転筒及び切削筒の回転により前記引留クランプのジャンパー線接続部付近の切削、切断が可能な構成とした、引留クランプのジャンパー線接続部の切断装置とした。 The invention of claim 1 has a fixed support having a fixed-length tubular fixing frame that covers and fixes the sleeve portion of the retention clamp, and an arm-shaped fixing frame that is supported by the tubular fixing frame and projects along an electric wire. A movable frame slidably supported along the body and the arm-shaped fixed frame of the fixed support, and a cylindrical fixed frame of the fixed support supported by the movable frame. It is composed of a sliding support composed of a sliding rotary cylinder that is rotatably crowned, and the fixed support has a tubular fixed frame that can be removed by splitting it in half at the top and bottom and can be fixed. A cutting cylinder having an inner peripheral diameter slightly larger than the sleeve outer peripheral diameter of the retaining clamp and having an annular cutting blade on the tip surface is integrally provided at the tip of the sliding rotary cylinder of the dynamic support via a step portion. The sliding rotary cylinder and the cutting cylinder are split into upper and lower halves and are detachably fixed, and a rotary drive means for rotating the sliding rotary cylinder is provided on the movable frame, and a sliding drive means for moving the movable frame. Is provided on the arm-shaped fixed frame, and the sliding drive means slides the movable frame in the direction of the jumper wire connection portion of the retention clamp, and the rotation drive means rotates the sliding rotary cylinder and the cutting cylinder. A cutting device for the jumper wire connection of the retaining clamp, which is configured to allow cutting and cutting near the jumper wire connection of the clamp.

また、請求項2の発明は、前記摺動駆動手段が、一端がアーム状固定フレームに軸支され、中途部が前記可動フレームに軸支された操作ハンドルである、請求項1に記載の引留クランプのジャンパー線接続部の切断装置とした。 The retention according to claim 1, wherein the sliding drive means is an operation handle whose one end is pivotally supported by an arm-shaped fixed frame and the middle portion is pivotally supported by the movable frame. It was used as a cutting device for the jumper wire connection of the clamp.

また、請求項3の発明は、前記回転駆動手段が電動モータである、請求項1又は2に記載の引留クランプのジャンパー線接続部の切断装置とした。 Further, the invention of claim 3 is a cutting device for a jumper wire connection portion of a retention clamp according to claim 1 or 2, wherein the rotation driving means is an electric motor.

また、請求項4の発明は、前記摺動回転筒の後端部外周に第1歯車を設け、前記電動モータの回転軸に設けた第2歯車と、前記第1歯車とを噛み合わせた、請求項に記載の引留クランプのジャンパー線接続部の切断装置とした。

Further, in the invention of claim 4, the first gear is provided on the outer periphery of the rear end portion of the sliding rotary cylinder, and the second gear provided on the rotating shaft of the electric motor is meshed with the first gear. The jumper wire connection portion of the retention clamp according to claim 3 was used as a cutting device.

また、請求項5の発明は、送電線の複数の耐張鉄塔間の送電線を撤去するに当たって、各耐張鉄塔に支持された引留クランプを割ワイヤで接続して、各耐張鉄塔の金車に前記送電線を通す工法において、各引留クランプのジャンパー線を取り外し、各引留クランプに前記請求項1〜4のいずれかに記載の切断装置を固定し、当該切断装置によってジャンパー線の接続部を切断、撤去してから、隣接する引留クランプを割ワイヤで接続し、当該送電線の一端から当該送電線を引っ張り、前記各金車に通して当該送電線を撤去する、送電線の張替え又は撤去工法とした。 Further, according to the invention of claim 5, when removing a transmission line between a plurality of tension towers of a transmission line, a retaining clamp supported by each tension tower is connected by a split wire, and the gold of each tension tower is formed. In the method of passing the power transmission line through a car, the jumper wire of each retention clamp is removed, the cutting device according to any one of claims 1 to 4 is fixed to each retention clamp, and the jumper wire connection portion is connected by the cutting device. After disconnecting and removing, connect the adjacent retention clamp with a split wire, pull the transmission line from one end of the transmission line, pass it through each of the gold wheels, and remove the transmission line, replace the transmission line, or It was a removal method.

請求項1の発明によれば、前記固定支持体の筒状固定フレームを引留クランプの直線状のスリーブ部の外周に取付け、当該筒状固定フレームの外周に、先端に環状の切削刃を有する摺動回転筒を被せ、当該摺動回転筒を、前記引留クランプの前記スリーブ部の一端に設けられたジャンパー線接続部に回転させながら接近させて、前記環状の切削刃で切削するため、切削刃の、ジャンパー線接続部への押圧の反力受けは前記筒状固定フレームであり、当該反力受けが強固に引留クランプに固定され、安定した切削が行われ、確実にジャンパー線の接続部を切り離すことができる。 According to the invention of claim 1, the tubular fixing frame of the fixed support is attached to the outer periphery of the linear sleeve portion of the retention clamp, and the outer periphery of the tubular fixing frame has an annular cutting blade at the tip. The sliding rotary cylinder is covered with a dynamic rotary cylinder, and the sliding rotary cylinder is brought close to the jumper wire connecting portion provided at one end of the sleeve portion of the retention clamp while rotating, and the cutting blade is used for cutting with the annular cutting blade. The reaction force receiver of the pressure on the jumper wire connection part is the tubular fixed frame, and the reaction force receiver is firmly fixed to the retention clamp, stable cutting is performed, and the jumper wire connection part is securely connected. Can be separated.

また、前記筒状固定フレーム、摺動回転筒及び切削筒はそれぞれ二つ割の構成であり、当該切断装置の引留クランプへの脱着が容易である。 Further, the tubular fixed frame, the sliding rotary cylinder, and the cutting cylinder are each divided into two parts, so that the cutting device can be easily attached to and detached from the retaining clamp.

また、請求項2の発明によれば、前記アーム状固定フレームに対する可動フレームの摺動を操作ハンドルで行うことにより、てこの作用で容易、かつ確実に行うことができる。また、請求項3の発明は、摺動回転筒を電動モータにより駆動回転させるため、労力を要せず、容易に回転させ、前記摺動回転筒の先端の切削刃で確実に切削することができる。 Further, according to the second aspect of the present invention, by sliding the movable frame with respect to the arm-shaped fixed frame with the operation handle, it can be easily and surely performed by the action of the lever. Further, in the invention of claim 3, since the sliding rotary cylinder is driven and rotated by an electric motor, it can be easily rotated without any labor and can be reliably cut by the cutting blade at the tip of the sliding rotary cylinder. it can.

また、請求項4の発明によれば、前記電動モータの回転を前記摺動回転筒に伝える構成を第1歯車と第2歯車とを噛み合わせにより行うため、確実に回転力を伝達することができる。 Further, according to the invention of claim 4, since the first gear and the second gear are meshed with each other to transmit the rotation of the electric motor to the sliding rotary cylinder, the rotational force can be reliably transmitted. it can.

また、請求項5の発明によれば、送電線の旧線を、各耐張鉄塔に設けた金車に掛けて撤去する際、各引留クランプのジャンパー線接続部を容易に切断し、かつ切断されて残った箇所が、前記引留クランプのスリーブ部と略同形の円形となるため、前記金車の通過をスムーズに行うことができる。 Further, according to the invention of claim 5, when the old line of the transmission line is hung on a gold wheel provided in each tension tower and removed, the jumper wire connection portion of each retention clamp is easily cut and cut. Since the remaining portion becomes a circular shape having substantially the same shape as the sleeve portion of the retaining clamp, the metal wheel can be smoothly passed.

この発明の実施の形態例1の切断装置を引留クランプに取り付けた状態の正面図である。It is a front view of the state where the cutting device of Embodiment 1 of this invention is attached to the retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付けた状態の平面図である。It is a top view of the state which attached the cutting device of Embodiment 1 of this invention to a retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付けた状態の左側面図である。It is a left side view of the state where the cutting device of Embodiment 1 of this invention is attached to the retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付けた状態の断面図である。It is sectional drawing of the state which attached the cutting apparatus of Embodiment 1 of this invention to a retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付ける前の分解斜視図である。It is an exploded perspective view before attaching the cutting apparatus of Embodiment 1 of this invention to a retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付けた状態の斜め後方から見た斜視図である。It is a perspective view seen from the oblique rear with the cutting device of Embodiment 1 of this invention attached to the retention clamp. この発明の実施の形態例1の切断装置を引留クランプに取り付け、上半分の部材を取り外した状態の斜め後方から見た斜視図である。It is a perspective view seen from the oblique rear with the cutting device of Embodiment 1 of this invention attached to the retention clamp, and the member of the upper half removed. この発明の実施の形態例1の切断装置を引留クランプに取り付けて引留めクランプを切断している状態の斜め後方から見た斜視図である。FIG. 5 is a perspective view seen from diagonally rearward in a state where the cutting device of the first embodiment of the present invention is attached to a retention clamp and the retention clamp is cut. この発明の実施の形態例1の切断装置を引留クランプに取り付けて引留めクランプを切断して、上半分の部材を取り外した状態の斜め後方から見た斜視図である。FIG. 5 is a perspective view seen from diagonally rearward in a state where the cutting device of the first embodiment of the present invention is attached to a retention clamp, the retention clamp is cut, and the upper half member is removed. この発明の実施の形態例1の切断装置を用いる、引留クランプの斜視図である。It is a perspective view of the retention clamp using the cutting device of Embodiment 1 of this invention. この発明の実施の形態例1の切断装置を用いた、引留クランプのジャンパー接続部を切断した正面図である。It is a front view which cut the jumper connection part of the retention clamp using the cutting device of Embodiment 1 of this invention. この発明の実施の形態例1の切断装置を用いた送電線の撤去工法の第1工程説明図である。It is 1st process explanatory drawing of the power transmission line removal method using the cutting device of Embodiment 1 of this invention. この発明の実施の形態例1の切断装置を用いた送電線の撤去工法の第2工程説明図である。It is a 2nd process explanatory drawing of the power transmission line removal method using the cutting device of Embodiment 1 of this invention. この発明の実施の形態例1の切断装置を用いた送電線の撤去工法の第3工程説明図である。It is a 3rd process explanatory drawing of the power transmission line removal method using the cutting device of Embodiment 1 of this invention. この発明の実施の形態例1の切断装置を用いた送電線の撤去工法の第4工程説明図である。FIG. 5 is an explanatory diagram of a fourth step of a method for removing a transmission line using the cutting device of the first embodiment of the present invention. この発明の実施の形態例1の切断装置を用いた送電線の撤去工法の第5工程説明図である。FIG. 5 is an explanatory diagram of a fifth step of a method for removing a power transmission line using the cutting device of the first embodiment of the present invention.

まず、この発明の実施の形態例1の引留クランプAのジャンパー線接続部の切断装置Bを使用する前記引留クランプAは、図10に示すように、略棒状の、電線を内部に把持するスリーブ部A1と、当該スリーブ部A1の端部に設けられた羽子板状のジャンパー線接続部A2とから成る。 First, as shown in FIG. 10, the retention clamp A using the cutting device B of the jumper wire connection portion of the retention clamp A according to the first embodiment of the present invention has a substantially rod-shaped sleeve that grips an electric wire inside. It is composed of a portion A1 and a battledore-shaped jumper wire connecting portion A2 provided at the end of the sleeve portion A1.

次に、この発明の実施の形態例1の引留クランプAのジャンパー線接続部の切断装置Bを図1〜9に基づいて説明する。 Next, the cutting device B of the jumper wire connection portion of the retention clamp A of the first embodiment of the present invention will be described with reference to FIGS. 1 to 9.

固定支持体1が前記引留クランプAのスリーブ部A1の外周に固定されており、当該固定支持体1は、前記引留クランプAのスリーブ部A1に被せて固定する筒状固定フレーム2と、当該筒状固定フレーム2に支持され、電線Cに沿って突出する略樋形状のアーム状固定フレーム3とから構成されている。 The fixed support 1 is fixed to the outer periphery of the sleeve portion A1 of the retaining clamp A, and the fixed support 1 is a tubular fixing frame 2 that covers and fixes the sleeve portion A1 of the retaining clamp A, and the cylinder. It is composed of a substantially gutter-shaped arm-shaped fixing frame 3 that is supported by the shape-fixing frame 2 and projects along the electric wire C.

前記筒状固定フレーム2は、上下の半筒状カバー2a、2bから成る二つ割りで、引留クランプAのスリーブ部A1に下の半筒状カバー2aを被せてから上の半筒状カバー2bを被せ、ネジにより上下の筒状カバー2a、2bを一体に固定している。また、これらの半筒状カバー2a、2bの上記スリーブ部A1への固定は、各半筒状カバー2a、2bの内周から夫々突出した押圧ネジ2cによりスリーブ部A1外周を押圧することによりなされている。また、これにより筒状固定フレーム2は引留クランプAのスリーブ部A1の外周に強固に固定される。 The tubular fixing frame 2 is divided into two parts consisting of upper and lower semi-cylindrical covers 2a and 2b. The sleeve portion A1 of the retaining clamp A is covered with the lower semi-cylindrical cover 2a and then the upper semi-cylindrical cover 2b. , The upper and lower tubular covers 2a and 2b are integrally fixed by screws. Further, these semi-cylindrical covers 2a and 2b are fixed to the sleeve portion A1 by pressing the outer periphery of the sleeve portion A1 with the pressing screws 2c protruding from the inner circumferences of the semi-cylindrical covers 2a and 2b, respectively. ing. Further, as a result, the tubular fixing frame 2 is firmly fixed to the outer periphery of the sleeve portion A1 of the retaining clamp A.

また、当該筒状固定フレーム2の下部後端から、略樋形状の前記アーム状固定フレーム3が後方に、電線Cに沿って突出している。当該アーム状フレーム3は前記筒状固定フレーム2に支持されている。 Further, the arm-shaped fixing frame 3 having a substantially gutter shape projects rearward along the electric wire C from the lower rear end of the tubular fixing frame 2. The arm-shaped frame 3 is supported by the tubular fixed frame 2.

また、前記固定支持体1に支持された摺動支持体4が設けられている。当該摺動支持体4は、前記固定支持体1のアーム状固定フレーム3の下に、当該アーム状固定フレーム3に沿って摺動自在に支持された略受け板状の可動フレーム5と当該可動フレーム5に支持され、かつ前記固定支持体1の筒状固定フレーム2の外周に回転自在に被冠された摺動回転筒6とから成る。 Further, a sliding support 4 supported by the fixed support 1 is provided. The sliding support 4 includes a substantially receiving plate-shaped movable frame 5 slidably supported along the arm-shaped fixed frame 3 under the arm-shaped fixed frame 3 of the fixed support 1 and the movable frame 5. It is composed of a sliding rotary cylinder 6 that is supported by the frame 5 and is rotatably crowned on the outer periphery of the tubular fixed frame 2 of the fixed support 1.

前記可動フレーム5は前記アーム状固定フレーム3より幅広の受け板状のもので、前記アーム状固定フレーム3をレールとし、当該レールに摺動自在に嵌合する嵌合部5aを有している。また、当該可動フレーム5の前端には上部が開口したボックス体7が垂下しており、当該ボックス体7は可動フレーム5と一体となっている。また、前記摺動回転筒6は後部外周にフランジ部6aを一体に有しており、前記摺動回転筒6の外周であって、当該フランジ部6aの後端面に第1歯車8が固定して設けられている。 The movable frame 5 has a receiving plate shape wider than the arm-shaped fixed frame 3, has the arm-shaped fixed frame 3 as a rail, and has a fitting portion 5a that is slidably fitted to the rail. .. Further, a box body 7 having an open upper portion hangs down from the front end of the movable frame 5, and the box body 7 is integrated with the movable frame 5. Further, the sliding rotary cylinder 6 has a flange portion 6a integrally on the outer periphery of the rear portion, and the first gear 8 is fixed to the rear end surface of the flange portion 6a on the outer circumference of the sliding rotary cylinder 6. It is provided.

また、前記ボックス部7の後端面に電動モータ9が設けられ、当該電動モータ9の回転軸が前記ボックス体7内に突出し、当該ボックス体7内の前記回転軸に第2歯車10が固定され、前記第1歯車8と第2歯車10とが噛み合わされている。また、前記ボックス体7の上部開口部には前記フランジ部6a及び第1歯車8を被う蓋ケース7aが着脱自在に設けられている。ただし、当該蓋ケース7aは図1において一点鎖線で示しているが、他の図面では図示を省略されている。そして、前記ボックス体7と前記摺動回転筒6とは一体に移動し、かつ摺動回転筒6のみが回転自在な構成となっている。 Further, an electric motor 9 is provided on the rear end surface of the box portion 7, the rotating shaft of the electric motor 9 projects into the box body 7, and the second gear 10 is fixed to the rotating shaft in the box body 7. , The first gear 8 and the second gear 10 are meshed with each other. Further, a lid case 7a that covers the flange portion 6a and the first gear 8 is detachably provided in the upper opening of the box body 7. However, although the lid case 7a is shown by a alternate long and short dash line in FIG. 1, it is not shown in other drawings. The box body 7 and the sliding rotary cylinder 6 move integrally, and only the sliding rotary cylinder 6 is rotatable.

また、前記摺動回転筒6の先端は、前記筒状固定フレーム2の前方で環状段部6bが設けられて外径がすぼまっており、当該環状段部6bの外周に後部を固定した切削筒11が設けられている。当該切削筒11は、引留クランプAのスリーブ部A1の外周径よりやや大きい内周径を有し、先端面に環状の切削刃11aを有している。これらの当該切削筒11、摺動回転筒6及び第1歯車8は、上下二つの部材から成る二つ割りになっており、ビスでこれらが一体に接合されている。 Further, the tip of the sliding rotary cylinder 6 is provided with an annular step portion 6b in front of the tubular fixing frame 2 and has a reduced outer diameter, and the rear portion is fixed to the outer periphery of the annular step portion 6b. A cutting cylinder 11 is provided. The cutting cylinder 11 has an inner peripheral diameter slightly larger than the outer peripheral diameter of the sleeve portion A1 of the retaining clamp A, and has an annular cutting blade 11a on the tip surface. The cutting cylinder 11, the sliding rotary cylinder 6, and the first gear 8 are divided into two parts, which are composed of two upper and lower members, and these are integrally joined by screws.

また、前記アーム状固定フレーム3に設けた軸3aに一端部12aを軸支した棒状の操作ハンドル12が設けられている。そして当該操作ハンドル12の中央部からやや前記一端部12aよりの箇所に長孔13を穿ち、前記可動フレーム5の上面に立設した柱体14の先端が前記長孔13に遊貫されている。 Further, a rod-shaped operation handle 12 having one end portion 12a pivotally supported on the shaft 3a provided on the arm-shaped fixed frame 3 is provided. An elongated hole 13 is formed slightly from the central portion of the operation handle 12 to a portion slightly from the one end portion 12a, and the tip of the pillar body 14 erected on the upper surface of the movable frame 5 is pierced through the elongated hole 13. ..

また、前記摺動回転筒6が筒状固定フレーム2の外周に完全に被冠されている状態、即ち図1及び図4の状態では、操作ハンドル12は、図2に示すようにその自由端が可動フレーム5の斜め後方に突出している。そして、操作ハンドル12の自由端を可動フレーム5の前方に押すと、操作ハンドル12の一端の軸3aの軸支部箇所を中心に回動し、これに伴い長孔13に遊貫された柱体14が押され、当該柱体14の支持体である可動フレーム5が、アーム状固定フレーム3に沿って移動する。 Further, in a state where the sliding rotary cylinder 6 is completely covered on the outer circumference of the tubular fixed frame 2, that is, in the state of FIGS. 1 and 4, the operation handle 12 has a free end as shown in FIG. Projects diagonally rearward of the movable frame 5. Then, when the free end of the operation handle 12 is pushed forward of the movable frame 5, the pillar body rotates around the shaft support portion of the shaft 3a at one end of the operation handle 12, and is pierced through the elongated hole 13 accordingly. 14 is pushed, and the movable frame 5, which is a support of the pillar 14, moves along the arm-shaped fixed frame 3.

これにより、可動フレーム5と一体なボックス体7に支持された摺動回転筒6及び切削筒11が筒状固定フレーム2の前方に突出する。また、前記電動モータ9を駆動回転させると、回転軸に固定された第2歯車10が回転し、これと噛み合った第1歯車8が回転し、摺動回転筒6が、筒状固定フレーム2の外周で回転し、その先端の切削筒11及び切削刃11aが回転する。 As a result, the sliding rotary cylinder 6 and the cutting cylinder 11 supported by the box body 7 integrated with the movable frame 5 project forward of the tubular fixed frame 2. Further, when the electric motor 9 is driven and rotated, the second gear 10 fixed to the rotating shaft rotates, the first gear 8 meshing with the second gear 10 rotates, and the sliding rotary cylinder 6 becomes the tubular fixed frame 2. The cutting cylinder 11 and the cutting blade 11a at the tip of the rotating cylinder 11 rotate around the outer circumference of the blade.

そして、当該切削刃11aが前記引留クランプAのジャンパー線接続部A2に接近し、さらにジャンパー線接続部A2に押圧されて、食い込んでいき、当該接続部A2を円形に切断する。従って、当該ジャンパー線接続部A2が切り落とされた引留クランプAは、図11に示すように、スリーブ部A1の外径よりやや大きい円形となる。 Then, the cutting blade 11a approaches the jumper wire connecting portion A2 of the retaining clamp A, is further pressed by the jumper wire connecting portion A2, bites into the jumper wire connecting portion A2, and cuts the connecting portion A2 in a circular shape. Therefore, as shown in FIG. 11, the retaining clamp A from which the jumper wire connecting portion A2 is cut off has a circular shape slightly larger than the outer diameter of the sleeve portion A1.

次に、当該切断装置Bを用いて、耐張鉄塔に支持された送電線の撤去方法を図12〜図16に基づいて説明する。 Next, a method of removing the transmission line supported by the tension tower using the cutting device B will be described with reference to FIGS. 12 to 16.

送電線は図12に示すように、耐張鉄塔20に支持されたがいし連21の先端に、送電線22の端部に固定された引留クランプAを接続している。そして、耐張鉄塔20の左右の送電線22は、各引留クランプAのジャンパー線接続部に接続したジャンパー線23により接続されている。 As shown in FIG. 12, the transmission line has a retention clamp A fixed to the end of the transmission line 22 connected to the tip of the ridge 21 supported by the tension tower 20. The left and right power transmission lines 22 of the tension tower 20 are connected by jumper wires 23 connected to the jumper wire connection portions of the retention clamps A.

そこで、図13に示すように、前記ジャンパー線23を各引留クランプAのジャンパー線接続部から取り外す。そして、図14に示すように、各引留クランプAのジャンパー線接続部A2を、前記切断装置B(図示省略)を用いて切断する。 Therefore, as shown in FIG. 13, the jumper wire 23 is removed from the jumper wire connection portion of each retention clamp A. Then, as shown in FIG. 14, the jumper wire connecting portion A2 of each retaining clamp A is cut by using the cutting device B (not shown).

そして、図15に示すように、前記各引留クランプAの手前の送電線22にカムアロング24を取付け、前記がいし連21と当該カムアロング24との間にセミワイヤ25を取り付けて、送電線22の張力をカムアロング24、セミワイヤ25及びがいし連21に移す。 Then, as shown in FIG. 15, a cam along 24 is attached to the transmission line 22 in front of each of the retention clamps A, and a semi-wire 25 is attached between the insulator chain 21 and the cam along 24 to increase the tension of the transmission line 22. Transfer to cam-along 24, semi-wire 25 and insulator 21.

また、耐張鉄塔20の左右の、ジャンパー線接続部が切り落とされた状態の前記各引留クランプA相互を割ワイヤ26で接続し、耐張鉄塔20に金車27を吊り下げ、当該金車27に前記割ワイヤ26を通しておく。その後、前記カムアロング24、セミワイヤ25及びがいし連21を取り外し、図16に示すように、耐張鉄塔20の左右の送電線22は、その各端部の引留クランプAに接続された割ワイヤ26を介して接続され、一本の送電線22となって、各耐張鉄塔20の金車27を通過して、送電線22の一端に引っ張られて、撤去される。 Further, the left and right jumper wire connecting portions of the tension tower 20 are connected to each other with split wires 26, and the metal wheel 27 is suspended from the tension tower 20. The split wire 26 is passed through the wire 26. After that, the cam-along 24, the semi-wire 25, and the insulator chain 21 are removed, and as shown in FIG. 16, the left and right transmission lines 22 of the tension tower 20 have the split wire 26 connected to the retention clamp A at each end thereof. It is connected via a single transmission line 22, passes through a metal wheel 27 of each tension tower 20, is pulled to one end of the transmission line 22, and is removed.

この様に、送電線22に接続された引留クランプAのジャンパー線接続部A2は切り落とされ、残された部分が断面円形となるため、上記金車27を通過しやすい。 In this way, the jumper wire connection portion A2 of the retention clamp A connected to the transmission line 22 is cut off, and the remaining portion has a circular cross section, so that it can easily pass through the gold wheel 27.

なお、上記実施の形態例では、回転駆動手段を電動モータ9としたが、これに限らず、エンジン等適宜の回転駆動手段を用いても良い。また、摺動駆動手段はてこの原理を用いた操作ハンドル12としたが、電動の摺動駆動手段等、操作ハンドル12以外のものでも良い。 In the above embodiment, the rotary drive means is the electric motor 9, but the present invention is not limited to this, and an appropriate rotary drive means such as an engine may be used. Further, although the sliding drive means is an operation handle 12 using the principle of leverage, an electric sliding drive means or the like other than the operation handle 12 may be used.

A 引留クランプ
A1 スリーブ部 A2 ジャンパー線接続部
B 切断装置 C 電線
1 固定支持体 2 筒状固定フレーム
2a 下の筒状カバー 2b 上の筒状カバー
2c 押圧ネジ 3 アーム状固定フレーム
3a 軸 4 摺動支持体
5 可動フレーム 5a 嵌合部
6 摺動回転筒 6a フランジ部
6b 環状段部 7 ボックス体
8 第1歯車 9 電動モータ
10 第2歯車 11 切削筒
11a 切削刃 12 操作ハンドル
12a 一端部 13 長孔
14 柱体 20 耐張鉄塔
21 がいし連 22 送電線
23 ジャンパー線 24 カムアロング
25 セミワイヤ 26 割ワイヤ
27 金車

A Retention clamp A1 Sleeve part A2 Jumper wire connection part B Cutting device C Wire 1 Fixed support 2 Cylindrical fixing frame 2a Lower tubular cover 2b Upper tubular cover 2c Pressing screw 3 Arm-shaped fixing frame
3a Axis 4 Sliding Support 5 Movable Frame 5a Fitting Part 6 Sliding Rotating Cylinder 6a Flange Part 6b Ring Step 7 Box Body 8 First Gear 9 Electric Motor
10 2nd gear 11 Cutting cylinder
11a Cutting blade 12 Operation handle 12a One end 13 Long hole 14 Pillar body 20 Tension tower 21 Insulator line 22 Transmission line 23 Jumper wire 24 Cam along 25 Semi-wire 26 Split wire 27 Gold wheel

Claims (5)

引留クランプのスリーブ部に被せて固定する一定長の筒状固定フレームと、当該筒状固定フレームに支持され、電線に沿って突出するアーム状固定フレームとを有する固定支持体と、当該固定支持体のアーム状固定フレームに、当該アーム状固定フレームに沿って摺動自在に支持された可動フレームと当該可動フレームに支持され、かつ前記固定支持体の筒状固定フレームに回転自在に被冠された摺動回転筒とから成る摺動支持体とから構成され、
前記固定支持体は、筒状固定フレームが二つ割で取り外し、固定自在となっており、
前記摺動支持体の摺動回転筒の先端には段部を介して引留クランプのスリーブ外周径よりやや大きい内周径を有し、先端面に環状の切削刃を有する切削筒を一体に設け、前記摺動回転筒と切削筒とは二つ割となって取り外し自在に固定され、
前記摺動回転筒を回転させる回転駆動手段が可動フレームに設けられ、また、可動フレームを動かす摺動駆動手段が前記アーム状固定フレームに設けられ、
当該摺動駆動手段による可動フレームの前記引留クランプのジャンパー線接続部方向への摺動及び前記回転駆動手段による摺動回転筒及び切削筒の回転により前記引留クランプのジャンパー線接続部付近の切削、切断が可能な構成としたことを特徴とする、引留クランプのジャンパー線接続部の切断装置。
A fixed support having a fixed length tubular fixed frame that covers and fixes the sleeve portion of the retaining clamp, an arm-shaped fixed frame that is supported by the tubular fixed frame and projects along an electric wire, and the fixed support. The arm-shaped fixed frame was slidably supported along the arm-shaped fixed frame, and the movable frame was supported by the movable frame and rotatably crowned by the tubular fixed frame of the fixed support. It is composed of a sliding support consisting of a sliding rotary cylinder.
The fixed support has a tubular fixed frame that can be removed in half and can be fixed freely.
A cutting cylinder having an inner peripheral diameter slightly larger than the sleeve outer peripheral diameter of the retention clamp and having an annular cutting blade on the tip surface is integrally provided at the tip of the sliding rotary cylinder of the sliding support via a step portion. , The sliding rotary cylinder and the cutting cylinder are split in half and fixed detachably.
A rotary drive means for rotating the sliding rotary cylinder is provided on the movable frame, and a sliding drive means for moving the movable frame is provided on the arm-shaped fixed frame.
Cutting near the jumper wire connection portion of the retention clamp by sliding the movable frame by the sliding drive means toward the jumper wire connection portion of the retention clamp and rotating the sliding rotary cylinder and the cutting cylinder by the rotation drive means. A cutting device for a jumper wire connection of a retaining clamp, which is characterized by being capable of cutting.
前記摺動駆動手段が、一端がアーム状固定フレームに軸支され、中途部が前記可動フレームに軸支された操作ハンドルであることを特徴とする、請求項1に記載の引留クランプのジャンパー線接続部の切断装置。 The jumper wire of the retaining clamp according to claim 1, wherein the sliding drive means is an operation handle whose one end is pivotally supported by an arm-shaped fixed frame and the middle portion is pivotally supported by the movable frame. Connection cutting device. 前記回転駆動手段が電動モータであることを特徴とする、請求項1又は2に記載の引留クランプのジャンパー線接続部の切断装置。 The device for cutting a jumper wire connection portion of a retention clamp according to claim 1 or 2, wherein the rotary drive means is an electric motor. 前記摺動回転筒の後端部外周に第1歯車を設け、前記電動モータの回転軸に設けた第2歯車と、前記第1歯車とを噛み合わせたことを特徴とする、請求項に記載の引留クランプのジャンパー線接続部の切断装置。 The third aspect of the present invention is characterized in that a first gear is provided on the outer periphery of the rear end portion of the sliding rotary cylinder, and the second gear provided on the rotating shaft of the electric motor is meshed with the first gear. A device for cutting jumper wire connections of the described retention clamps. 送電線の複数の耐張鉄塔間の送電線を撤去するに当たって、各耐張鉄塔に支持された引留クランプを割ワイヤで接続して、各耐張鉄塔の金車に前記送電線を通す工法において、
各引留クランプのジャンパー線を取り外し、各引留クランプに前記請求項1〜4のいずれかに記載の切断装置を固定し、当該切断装置によってジャンパー線の接続部を切断、撤去してから、隣接する引留クランプを割ワイヤで接続し、当該送電線の一端から当該送電線を引っ張り、前記各金車に通して当該送電線を撤去することを特徴とする、送電線の張替え又は撤去工法。



In the construction method of removing the transmission line between a plurality of tension towers of the transmission line, the retaining clamp supported by each tension tower is connected with a split wire and the transmission line is passed through the gold wheel of each tension tower. ,
The jumper wire of each retention clamp is removed, the cutting device according to any one of claims 1 to 4 is fixed to each retention clamp, and the connection portion of the jumper wire is cut and removed by the cutting device, and then adjacent to each other. A method of re-covering or removing a transmission line, which comprises connecting a retention clamp with a split wire, pulling the transmission line from one end of the transmission line, and removing the transmission line through each of the gold wheels.



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