JPH0338435A - Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringing - Google Patents
Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringingInfo
- Publication number
- JPH0338435A JPH0338435A JP17437589A JP17437589A JPH0338435A JP H0338435 A JPH0338435 A JP H0338435A JP 17437589 A JP17437589 A JP 17437589A JP 17437589 A JP17437589 A JP 17437589A JP H0338435 A JPH0338435 A JP H0338435A
- Authority
- JP
- Japan
- Prior art keywords
- tension
- overhead
- wires
- balancer
- gear type
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000000034 method Methods 0.000 title claims description 4
- 230000007246 mechanism Effects 0.000 claims abstract description 8
- 230000005540 biological transmission Effects 0.000 claims description 2
- 238000012544 monitoring process Methods 0.000 claims description 2
- 239000000725 suspension Substances 0.000 claims 1
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 230000007423 decrease Effects 0.000 description 4
- 238000005452 bending Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 230000009474 immediate action Effects 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000004898 kneading Methods 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Landscapes
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
Description
（１）産業上の利用分野
電気鉄道の電車線に関するものであるが送電線、などの
架空線として設備されているものの保全、るものである
配電線、き１１ｉ線、ケーブル
事故防止に利用が期特出來
（２）発明の概要
′ＩＬＩ！線の張力を電動機、歯車機構しこよりねじを
有する軸棒の直線移動により変化し張力センサーにより
適当な範囲に張力を保持するａ械。またこの機能を利用
し電ｆｆｉ線を張力（即ち弛度）を一定に保ちながら線
路方向に柊勤させトロリ線の局部摩耗点の移動を安全か
つ簡便(1) Industrial field of use It is related to electric railway overhead lines, but it can also be used for the maintenance of overhead lines such as power transmission lines, distribution lines, 11i lines, and cable accident prevention. Special release (2) Outline of the invention'ILI! A machine that changes the tension of the wire using an electric motor, gear mechanism, and linear movement of a shaft rod with a screw, and maintains the tension within an appropriate range using a tension sensor. This function can also be used to move the local wear points of the contact wire safely and easily by moving the electric ffi wire in the direction of the track while keeping the tension (that is, slackness) constant.
【ご行いトロリ線の張り替え寿命を大幅に延ばす
ための作業方法、及び張力の状態を当該機械の検知部を
利用し通信線路で列車指令に送り断線事故の早期発見と
事故の拡大を防止するシステム（３）従来の技附
ア、電車線のトンネル内および短尺Ｖ！線の張力調整力
ｌ失明かり区間においては電車線の張力調整方法として
は喰錘式のテンションバランサーが主として使用され、
トンネル内においては場所の狭あいのためスプリングバ
ランサーが使用されている。またｔｉＲ横内の短いｆ＆
’ｆｔ ｍについては電柱−本に何本も電車線を引留
めするためコンパクトｔスプソングバランサーが使用さ
れている。
しかしスプリングバランサーは移動量が少なくかつ電車
線の移動量にともない張力が変化するので、張力変化を
ｌＯ％程度に抑えている。しかしトロリ線は銅のため架
設した後クリープ伸びが生じ張力が低下しカテナリーの
変形、押し上げ量の増加などによりいろいろな障害を生
ずる。そのため架ｌ１ＩＡ類の切り詰めを行っているが
労力、費用、作業の困難さのため度々施工することが困
難のため不完全な状態のまま置かれているのが現状であ
る。
イ、高速架線の摩耗対策
新幹線など１５０ＫＭ／［（以上の高速用の電車線にあ
ってはトロリ線に局部的摩耗箇所が発生しても接続した
り補強したりすると、その置所が硬点となり急速な異常
摩耗を発生するため、−本のトロリ線全部を張り替えし
なければならない。しかしその張り替えには時間として
作業時間に３時間程度を要し、張り替え専用のモーター
力を普通６両の編成で行い電工技術者四十数人を要する
膨大な作業である。しかも新幹線こう！２０００キロに
はいわゆるＩζラム数でいえば２６６ｏドラム（７５０
ＫＭあたり１ドラム）以上有り摩耗の激しいものでは１
年以下、平均でもＪｌ・５年に１回は張り替えしなけれ
ばならない状態であるつ、
断線箇所の検知
に電線の電車線断線の列車指令への報告は列中運転士か
らの報告によることが殆どであるが沿線電話の位置まで
くるのに時間を要し、その間に続行列中が突っ込み事故
を拡大する事も多い工、架゛上電線の保全
ちょう梁線、配電線、き電線など最も弱点になっている
のはがいしの支持点Ｃ風などの振動、温度変化による移
動による摩擦メツキが剥げ綿体が摩耗するが■見在では
寿命がきた時点で張り曽えるだけである４、発明の構成
（４）発明が解決しようとしている課題アにたいするも
の
スプリングバランサーの持っている欠陥はバネ定数によ
り移動量と張力の関係が定まるためその張力の一部の範
囲しか利用できないので移動量が小さいのでトロｌＪ線
の数十センチに達するクリープ伸びにより張力が低下し
てしまう。償錘式のテンションバランサーはこの欠点は
ないがＬｔ備が大きすぎて狭あいなトンネル内、駅のホ
ーム上などには実際上不可能で有る。そのため有る程度
コンパクトで張力が一定で移ａＪｔの大きいものが必要
である。
イ１ に対するもの
過去の連続摩耗測定の結果分析及び現場でのマイクロメ
ータによる手測定により検討すると次の現象がみられる
（７）、高速用のトロリ線の局部摩耗は曲引装置、き電
分岐装置、区分装置、交差装置の付近に生ずるがその発
生場所はいつも同じ場所に発生する（イ）、硬点は金具
取付点の進行方向に長さ１米以下の点で発生し山形にな
っている。特に曲線区間ではこの傾向が大きい（つ〉、
交差箇所ではパンタグラフの曲がり部分の為生ずるが長
さ、形状は殆ど同じである。
このためｌ釆位柊動ずれば殆ど摩耗していないところが
その位置にあたり寿命が大幅に延びるのであることが推
定される。これに対処するためにはトロリ線を線路方向
に１米くらい移動してやればよいが、そのためには次の
問題がある（ア〉、弛度というのは少し長さを増すたけ
大幅に下に下がるためトロリ線にくせがつき局部摩耗の
原因になるとか、線路にふれず３号、踏切に支障する。
このためには 正確に一定張力で行うことが必要である
（イ）１片方で一定張力で引いても何か途中で引っかか
るとトロリ線にくせが生ずるこのためには一箇所で監視
しながら張力をｔｒｖ！に調整出来ることが必要である
つにたいするもの
電重線断線の列車指令への報告は新幹線では列車との直
通電話で行われるが在来線では運転士が地上の沿線電話
で行うが事故の大要を掴み指令まで報告するには相当の
時間を要するがこれを比較的簡単に列車指令報告できる
システムを構成出来れば事故対策上効果が大きい工にた
いするもの
イに対するものとほぼ同じである
（５）課題を解決するための手段
アについての対策
本発明の張力センサー付き歯車式テンションバランサー
を使用すれば移動量が大きく、また移動量に関係なく張
力を一定に保持できるのでトロリ線のクリープ伸びを吸
収してしまうことができる。
イについての対ｉ（工についても同じ）トロリ線の両端
にこの張力センサー出車式テンションバランサーを設備
して両端を同一方向へ移動すれば局部摩耗点からトロリ
練摩耗静所をずらすことができる。この場合片端（操作
者のいる側）に他端の張力表示を送りそれにもとすいて
電動機の制御回路を同一人が遠方操作して、張力を一定
に保持し弛みを生じなく安全に移動出来る（従来線路方
向に’ｆｌ類を安全かつ聞単に移動する方法が無かった
）つについての対策
架線の張力の状態を張力センサーの電気信号を通信線路
を通じて列車指令に送り断線箇所を発生と同時に知り、
直ちに続行列車に知らせ事故の拡大を防ぐと共に、事故
復旧処置を直ちにとることができる。
安全対策について
電車線の設備についてはもつとも高度な安全性が要求さ
れるが本機はねじ付き軸棒と回転子は動作が非可逆なの
で電源の故障、機Ｍ部の故障で電動機、歯車ｉ構が停止
してもネジ付き軸棒に波及せず安全である（へ）作用
電車線架設時には張力は規定の値に設定される。しかし
時日が経過するにしたがいクリープ伸びが生じ張力が下
がるので張力センサーが働きトンネル内の器材坑に有る
配電盤のスイッチが働き１１１動機が回り歯車機構を経
て軸棒がじ動しトロリ線を引っ張り張力を規定値まで上
げる局部摩耗が発生する恐れを発見したら電車線の曲引
装置、き電分岐装置、区分装置、交差＊ｆｆ！の金具を
仮に外しトロリ線の両端を制ｇｇ線でつなき搏作貝か張
力センサーの指示を見ながら電動機を回転し定犠力に保
ちながらトロリー線を現定値だけ移動するそして前【こ
仮に外した金具類を元通り取り付ける断線時には張力セ
ンサーが働き張力低下の状態を列車指令に報告する（ト
）実！Ｍ例
ｍｔＥまだないが経験的推定して可能と考え得る（チ〉
発明の効果
Ａ、偵力ｊｌＩＩＩ！ｉに伴う効果
切り詰めの工事量の減が考えられる
一ドラムあたり４回として４０万円
新幹線３０００ｋｎ４０ＱＯ）’ラムとして１６＠ｐ＋
１５年＝３．２１ＥＦｌ切り詰め前の不安全状態を無く
する点に付いては金額で査定できない価値がある
Ｂ、工事費の減少の利益を概算すれば次のようになる張
り替えを移動に変えることにより
トンネル区間その他のスプリングバランサー区間の長さ
を全体の２０％とする張り替え（５年１回百万円）２回
のうち１回線の往動（工費は張り替えの２０％）にて対
応
４０００）’うＡｌ１．２本１００乃円＄０．６１５ネ
ン；２４１円張り替えを移動に変えることにより作業を
梯子で出来ることになるため、この張り替えに要する基
地から現地までのモーター力走行に要するトロリー使用
間合いを他の作業に転用できる価値に付いては金額で査
定できない価（ｉがある
Ｃ０幹線の列車速度は高速化される状況にありその最も
過酷なｄ務を受ける電車線についてはさらに厳密精確な
保全が必要となり本発明の価値は増大する
り、張力調整の正しく保たれる為の効果に付いてはハン
ガの破損、トロリ綜摩耗量の増加を考えられるが数量的
の関係については解明出来ない４．１１１２１面の簡単
な説明
新幹＃Ｉ襟線トンネルの電車線を例にとって説明する（
１）下束１は（さげずか）新幹線の複線用トンネルの天
井の中央に取り付けである鋼材を組み合わせたもので電
車線の引留に使用するものである（既設）
（２）台枠２．外枠３．はトンネル天井またはビームに
吊り金具・１．で取り付けられ、電動機、５．１！１車
機１Ｍ６．を取り付ける。また台枠２１は軸方向の′Ｗ
ｌ＃Ｑから受ける力を引ＩＷｆｉｋ具７．によって下東
１．に伝える。
（３）回転子８．は台枠２．に輪状突起９．の噛み合わ
せにより回転出来るようにして固定される。そして歯車
機構６．と歯車の噛み合わせにより回転しねじに噛み合
った軸棒】０．を軸方向に往動させる（４）軸棒１０．
は外面に螺旋状にネジが切ってありかつ軸方向に切り欠
き溝１５を作り滑り軸受＋１．に着けである突起１４と
の噛み合わせで回転しないようにしである
（５）軸受１２．は台枠に固定され回転子を支持するこ
とにより軸方向の電車線の張力も支持する[A work method for significantly extending the service life of contact wires, and a system that uses the detection unit of the machine to send the tension status to the train command via communication lines for early detection of disconnection accidents and preventing the spread of accidents. (3) Conventional technique, inside the tunnel of electric train line and short V! Tension adjustment force of the lineIn the section where there is no light, a weight-type tension balancer is mainly used to adjust the tension of the contact line.
Spring balancers are used in tunnels due to the limited space available. Also, the short f& in the tiR side
For 'ftm, a compact T-spring balancer is used to hold multiple overhead contact lines to utility poles. However, since the spring balancer has a small amount of movement and the tension changes with the amount of movement of the overhead contact line, the change in tension is suppressed to about 10%. However, since the contact wire is made of copper, it undergoes creep elongation after being installed, resulting in a decrease in tension, causing various problems such as deformation of the catenary and an increase in the amount of push-up. For this reason, efforts are being made to reduce the number of racks of type I1IA, but due to the labor, cost, and difficulty of work, it is often difficult to construct them, so they are currently left in an incomplete state. B. Wear countermeasures for high-speed overhead wires For high-speed overhead contact lines such as Shinkansen trains, etc., even if localized wear spots occur on contact wires, connecting or reinforcing them will result in hard spots at these locations. As a result, rapid abnormal wear occurs, and all of the contact wires must be replaced.However, this replacement takes about 3 hours, and the motor power dedicated to the replacement is usually applied to six cars. It is an enormous amount of work that requires more than 40 electrical engineers to carry out in train formations.Moreover, the Shinkansen! 2000 km requires 266 o drums (750
1 drum per KM) or more for items with severe wear.
On average, wires need to be re-lined once every five years, and it is recommended that wires be reported to the train dispatcher by the train driver in order to detect broken wires. In most cases, it takes time to get to the location of the lineside telephone, and during that time, the continuation lines often run into each other, increasing the accident. The weak point is the support point C of the insulator, which causes friction due to vibrations such as wind and movement due to temperature changes, and the plating peels off and the cotton body wears out. However, in the current situation, it only becomes sticky at the end of its life. 4. Invention Structure (4) Problem A to be solved by the invention The defect that spring balancers have is that the relationship between the amount of movement and tension is determined by the spring constant, so only a part of the tension can be used, so the amount of movement is small. Therefore, the tension decreases due to the creep elongation of the Toro IJ wire, which reaches several tens of centimeters. The compensation weight type tension balancer does not have this drawback, but the Lt is so large that it is practically impossible to use it in narrow tunnels, on station platforms, etc. Therefore, it is necessary to have a material that is somewhat compact, has constant tension, and has a large displacement aJt. (1) Analysis of the results of past continuous wear measurements and manual measurement using a micrometer on site revealed the following phenomenon (7): Local wear of high-speed contact wires is caused by bending devices, feeder branches, etc. Hard spots occur near equipment, sorting equipment, and crossing equipment, but they always occur in the same location (a). Hard spots occur at points less than 1 meter long in the direction of movement of the metal fittings attachment point, and are mountain-shaped. There is. This tendency is especially strong in curved sections.
The intersection occurs due to the bending part of the pantograph, but the length and shape are almost the same. For this reason, it is presumed that if the button position is shifted, the part with almost no wear will be placed in that position, and the life will be significantly extended. To deal with this, the contact wire can be moved about 1 meter in the direction of the track, but this poses the following problem (A): As the length increases slightly, the sag goes down significantly. As a result, the contact wire becomes curly, causing local wear, and it does not touch the track, causing trouble at No. 3 and railroad crossings.To do this, it is necessary to maintain accurate tension at a constant level. Even if the contact wire is pulled, if something gets caught on the way, the contact wire will become bent.For this purpose, it is necessary to be able to adjust the tension to trv! while monitoring it from one location.One thing to do is to notify the train command of a broken heavy wire. On Shinkansen trains, reports are made via a direct telephone line with the train, while on conventional lines, drivers make reports via wayside telephones on the ground.It takes a considerable amount of time to grasp the outline of an accident and report it to the dispatcher, but this is relatively simple. If a system can be constructed that can report train commands to the train, it will be very effective in terms of accident countermeasures.(5) Means for solving the problem Countermeasures for A Gear tension sensor with tension sensor of the present invention By using a balancer, the amount of movement is large and the tension can be maintained constant regardless of the amount of movement, so it is possible to absorb the creep elongation of the contact wire. By installing this tension sensor output type tension balancer at both ends of the trolley and moving both ends in the same direction, it is possible to shift the trolley kneading wear station from the local wear point.In this case, one end (the side where the operator is located) and the other The same person can remotely control the control circuit of the electric motor by transmitting the tension display at the end, which allows the tension to be maintained constant and the vehicle to be moved safely without any slack. (There was simply no way to move them.) Measures to detect the state of tension in overhead wires by sending an electrical signal from a tension sensor to the train dispatcher via a communication line to know the location of the disconnection as soon as it occurs.
Immediately notify the following trains to prevent the accident from spreading, and take immediate action to recover from the accident. Safety measures A high degree of safety is required for overhead contact line equipment, but since the threaded shaft and rotor of this machine operate irreversibly, failure of the power supply or failure of the machine M section may result in damage to the electric motor or gear I structure. Even if the line stops, the tension will not affect the threaded shaft and will be safe.When the overhead contact line is installed, the tension is set to a specified value. However, as time passes, creep elongation occurs and the tension decreases, so a tension sensor is activated, and a switch on the switchboard located in the equipment shaft inside the tunnel is activated, causing the 111 motor to rotate and the shaft rod to move through a gear mechanism, pulling the contact wire. Raise the tension to the specified value. If you discover that there is a risk of local wear, contact line bending equipment, feeder branching equipment, separation equipment, crossing *ff! Temporarily remove the metal fittings, connect both ends of the contact wire with a control wire, rotate the electric motor while keeping the sacrificial force at a constant value, and move the trolley wire by the current value while watching the instructions from the tension sensor. Reinstall the metal fittings that were removed.When a wire breaks, a tension sensor works and reports the state of the decrease in tension to the train dispatcher. There is no mtE example yet, but it can be considered possible based on empirical estimation (chi)
Invention effect A, reconnaissance jlIII! 400,000 yen (Shinkansen 3,000kn40QO)'Ram 16@p+ (Shinkansen 3,000kn40QO) 'Ram 16@p+
15 years = 3.21 EFL There is a value in eliminating the unsafe condition before the cut that cannot be assessed in monetary terms B. If we roughly estimate the benefit from the reduction in construction costs, we will get the following: Changing the relining to moving. Therefore, the length of the tunnel section and other spring balancer sections will be reduced to 20% of the total length (1 million yen once every 5 years), and one out of 2 circuits will be moved (construction cost is 20% of the relining) (4,000 yen) 1.2 pieces of aluminum 100 yen / 0.615 yen; 241 yen By changing the relining to transportation, the work can be done using a ladder, so the use of a trolley is required for motorized travel from the base to the site. The value of being able to transfer the distance to other work cannot be measured in monetary terms (the train speed on the C0 main line where I is being increased, and it is even more precise and accurate for the overhead line, which is subject to the most severe work). It is possible that the value of the present invention will increase due to the need for maintenance, and that the effect of properly maintaining tension adjustment may be due to breakage of the hanger and increase in the amount of wear on the trolley heald, but the quantitative relationship cannot be clarified. 4. Brief explanation of page 11121 Let's explain using the Shinkan #I collar line tunnel train line as an example (
1) Lower bundle 1 (Sagezuka) is a combination of steel materials that is attached to the center of the ceiling of a Shinkansen double-track tunnel and is used to tie down the overhead contact line (existing) (2) Underframe 2. Outer frame 3. - Hanging fittings on tunnel ceiling or beam ・1. Installed with electric motor, 5.1!1 car machine 1M6. Attach. Also, the underframe 21 is
7. Subtract the force received from l#Q. By Shimoto 1. tell to. (3) Rotor 8. is the underframe 2. 9. It is fixed so that it can be rotated by the engagement of the two. and gear mechanism 6. The shaft rotates through the meshing of gears and meshes with the screw】0. (4) Shaft rod 10.
The sliding bearing +1. is threaded spirally on the outer surface and has a cutout groove 15 in the axial direction. (5) Bearing 12 which is prevented from rotating by meshing with the projection 14 which is a fitting. is fixed to the underframe and supports the rotor, thereby also supporting the tension of the contact line in the axial direction.
Claims (5)
のついた回転子を回転させそのネジでネジのついた軸棒
を移動させ、それにつないだトロリ線、吊架線、き電線
、配電線、送電線、ケーブル（以下架線類という）の張
力を調整する機械（以下歯車式テンションバランサーと
いう）(1) By rotating an electric motor, a threaded rotor is rotated through a gear mechanism, and the threaded shaft is moved by the screw, and contact wires, suspension wires, feeder wires, distribution lines, etc. A machine (hereinafter referred to as a gear type tension balancer) that adjusts the tension of power transmission lines and cables (hereinafter referred to as overhead lines)
記の歯車式テンションバランサーの電動機の制御回路に
いれそのネジのついた軸棒の移動量と張力を一定関係に
置きその架線類の張力を調整する方法(2) Insert a tension sensor in series with the overhead wires and send the information to the control circuit of the electric motor of the gear type tension balancer mentioned above to maintain a constant relationship between the travel distance and tension of the threaded shaft rod and the tension of the overhead wires. How to adjust
サーを電車線の両端に入れ同一方向に移動することによ
り一定張力を保ちながら架線類を移動する方法(3) A method of moving overhead wires while maintaining a constant tension by inserting the above-mentioned gear type tension balancers with tension sensors at both ends of the overhead contact line and moving them in the same direction.
張力の情報を他端（以下Ａ端という）に電気信号で伝え
Ａ端において両端の張力を監視しながらＡ端からＢ端に
制御電気信号を送り歯車式テンションバランサーを駆動
して電車線を移動する方法(4) Information on the tension at one end (hereinafter referred to as the B end) of the overhead wires in (3) is transmitted to the other end (hereinafter referred to as the A end) by an electrical signal, and from the A end while monitoring the tension at both ends. A method of moving the overhead contact line by sending a control electrical signal to the B end to drive a gear tension balancer.
に送り断線状態を表示する装置(5) A device that sends the tension status of the tension sensor to the train command via electrical signal and displays the disconnection status.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17437589A JPH0338435A (en) | 1989-07-06 | 1989-07-06 | Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17437589A JPH0338435A (en) | 1989-07-06 | 1989-07-06 | Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0338435A true JPH0338435A (en) | 1991-02-19 |
Family
ID=15977514
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17437589A Pending JPH0338435A (en) | 1989-07-06 | 1989-07-06 | Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringing |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0338435A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166013A (en) * | 2004-12-07 | 2006-06-22 | Nec Corp | Sound data providing system, its method, exchanging device and program |
| US10342825B2 (en) | 2009-06-15 | 2019-07-09 | Sonoma Pharmaceuticals, Inc. | Solution containing hypochlorous acid and methods of using same |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594834U (en) * | 1982-06-30 | 1984-01-12 | 三菱自動車工業株式会社 | disc brake device |
| JPS6111624A (en) * | 1984-06-27 | 1986-01-20 | Fujikura Ltd | Tension sensor of power transmission line |
-
1989
- 1989-07-06 JP JP17437589A patent/JPH0338435A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS594834U (en) * | 1982-06-30 | 1984-01-12 | 三菱自動車工業株式会社 | disc brake device |
| JPS6111624A (en) * | 1984-06-27 | 1986-01-20 | Fujikura Ltd | Tension sensor of power transmission line |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006166013A (en) * | 2004-12-07 | 2006-06-22 | Nec Corp | Sound data providing system, its method, exchanging device and program |
| US10342825B2 (en) | 2009-06-15 | 2019-07-09 | Sonoma Pharmaceuticals, Inc. | Solution containing hypochlorous acid and methods of using same |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR101329632B1 (en) | A constant strain spring compensation device | |
| US20140232191A1 (en) | Contact wire system for traction supply of an electric tractive vehicle | |
| EP2066523B1 (en) | Device for compensating variations in the length of tensioned cables, with substantially constant tension | |
| KR20170005297A (en) | Tramline automatic tensioning systems Tension additional upper and lower position sensing system | |
| EP3096971B1 (en) | Monitoring device for current collectors | |
| US20140345398A1 (en) | System and method for lowering a pantograph | |
| JPH0338435A (en) | Gear type tension balancer with tension sensor and local wear point movement method due to straight movement of constant tension stringing | |
| JP6416739B2 (en) | Pantograph abnormality detection method and detection apparatus | |
| DK2621753T3 (en) | Surveillance device for a chainwork of a transmission line system | |
| JP5143168B2 (en) | Cable slack prevention device and cable slack prevention overhead wire construction method | |
| CN107934791B (en) | Track bridge trolley drag chain safety detection device | |
| KR101972152B1 (en) | Elevation Device for Tension Weight of a Railway Catenary System | |
| CN209994094U (en) | Rail car slide wire cable safety arrangement | |
| EP3604026A1 (en) | Tensioning device for compensating variations in the length of tensioned wires in a railway system | |
| KR101810796B1 (en) | rigid bar transition device for high speed electric railroad | |
| JP4602263B2 (en) | Method of moving overhead transmission lines while constantly applying a constant load | |
| JP2005001495A (en) | Trolley wire including optical fiber and its using method | |
| JPS63305262A (en) | Breakdown detector for contact wire for electric car | |
| KR100493546B1 (en) | remote managing system of electric railway | |
| KR200270097Y1 (en) | An apparatus for oiling rail for crane moving | |
| JP6852000B2 (en) | Train line anomaly detection method and detection device | |
| IT202100032657A1 (en) | Tensioning system for railway catenary lines | |
| KR20190021824A (en) | Connecting apparauts of rigid bar and rigid bar system having the same | |
| RU2669186C1 (en) | Device for compensation of temperature extensions of railroad contact suspension wires | |
| EP2555365A1 (en) | Tensioning device with telescopic safety block for tension of a catenary |