JP3779149B2

JP3779149B2 - Rigid train line

Info

Publication number: JP3779149B2
Application number: JP2000354164A
Authority: JP
Inventors: 盛実山川; 政利清水; 祐一岩間; 登中村; 毅萬代
Original assignee: Railway Technical Research Institute; Sanwa Tekki Corp
Current assignee: Railway Technical Research Institute; Sanwa Tekki Corp
Priority date: 2000-11-21
Filing date: 2000-11-21
Publication date: 2006-05-24
Anticipated expiration: 2020-11-21
Also published as: JP2002154352A

Description

【０００１】
【発明の属する技術分野】
この発明は、電車に駆動電力を供給するために、電車線路に沿って、隧道の天井に吊架金具でほぼ水平に吊支される剛体電車線に関するものである。
【０００２】
【従来の技術】
従来の剛体電車線としては、隧道の天井に、アルミ合金、導電鋼等の導電性成形材を碍子を介して吊架金具で支持し、この支持導体の下縁に多数のイヤを用いてトロリ線を一体化して固定する方式が知られている。また、隧道の天井に、導電鋼製のレールを碍子を介して吊架金具で支持し、導電性を向上させるために、この導電鋼レールの両側面に全長にわたってアルミニウム製又は銅製の平角線を多数のボルトを用いて一体化して固定し、パンタグラフが導電鋼レールの下面を摺動する方式が知られている。
【０００３】
【発明が解決しようとする課題】
上記従来の方式のうち、前者では、架設工事において、天井に支持した支持導体同士をアルゴンガス溶接により接続した後、イヤでトロリ線を支持導体に固定するから作業に多大な労力を要する。部品点数が多く、メンテナンスも容易でない。支持導体の接続部は垂直平面同士が突き合わされているので電気的接触面積が小さく導電性が損なわれる等の難点がある。
後者では、導電鋼レールの導電性が、銅製やアルミ製のものに劣る。また、錆の発生により電気的、機械的性能が損なわれ易いので、メンテナンスが容易でない。導電鋼レールの接続部も、垂直平面同士の突き合わせによるので電気的接触面積が小さく導電性が損なわれる等の難点がある。
従って、本発明は、架設工事やメンテナンスが容易で、長期にわたって良好な導電性能を維持することができる支持導体一体型の剛体電車線を提供することを課題としている。
【０００４】
【課題を解決するための手段】
上記課題を解決するため、第１の発明においては、銅、銅合金等の良導電性金属で形成された長尺の電車線材２を隧道の天井Ｓに吊架金具Ｈで連続的に吊支して剛体電車線１を構成する。この電車線材２には、吊支状態においてほぼ水平に伸びる平板状の支持板部３と、それの中央から垂直下方へ延出する垂直板部４とを具備させる。垂直板部４の下縁の所定の上下幅を、パンタグラフの摺動による摩耗許容範囲４ａに設定する。電車線材２が、直接、隧道の天井Ｓに支持される一体型で、別体の支持部材を用いないから、部品点数が少なく施工及びメンテナンスが容易であり、また良好な導電性能を有する。別体の支持部材がなく、電車線材２自体が一体で支持部材の機能を有するから、必要な剛性及び電気性能の適格な設計が可能であり、他の方式と比べて単位重量当たりの縦方向の曲げ剛性が高く、従って、電車が時速160km程度の高速走行をしても変形することがなく、良好な集電性能を長期にわたって維持する。
【０００５】
第２の発明においては、第１の発明の電車線材２の両端部における垂直板部４に、支持板部３より所定寸法長く延出した延出部４ｃを設け、かつこの延出部４ｃから支持板部端面３ａより内側の所定の長さ範囲にわたって、その肉厚を他の部位の１／２に設定した接続部４ｄを形成する。相隣接する電車線材２の支持板部３の端面３ａ同士を突き合わせ、かつ接続部４ｄ同士を重合させてボルト、ナット５にて締め付けることにより、相隣接する電車線材２が接続される。接続部４ｄ同士が重合するので電気的接触面積を広く確保できる。
【０００６】
第３の発明においては、第２の発明の電車線材２の相互接続部位に、両電車線材２の支持板部３上にわたるように、補強部材６を重合し、ボルト、ナット７にて締め付け固定する。補強部材６により、相互接続部位における電車線材２の縦方向の剛性が強化され、さらに広い電気的接触面積が確保できる。
【０００７】
第４の発明においては、第３の発明における補強部材６に、重合板部６ａと補強リブ６ｂとを具備させる。重合板部６ａは、電車線材２の支持板部３に重なるようにし、補強リブ６ｂは、重合板部６ａの中央から垂直に起立させる。補強リブ６ｂの両側において、重合板部６ａをボルト、ナット７にて支持板部３に締め付け固定する。補強リブ６ｂを備えた補強部材６により、相互接続部位における電車線材２の縦方向の剛性がさらに強化される。
【０００８】
第５の発明においては、第１の発明に係る電車線材２の垂直板部４における摩耗許容範囲４ａの端部に沿って突条４ｂを形成する。この場合、電車線材２の摩耗量を測定しやすく、摩耗限界を容易に確認できる。
【０００９】
【発明の実施の形態】
図面を参照して本発明の実施の形態を説明する。図１は本発明に係る剛体電車線の正面図、図２は図１におけるII−II断面図、図３は本発明に係る剛体電車線の接続部位の正面図、図４は図３におけるIV−IV断面図、図５は本発明に係る剛体電車線の接続部位の底面図、図６は本発明に係る電車線材の端部の斜視図である。
【００１０】
図１において、剛体電車線１は、長尺の電車線材２を隧道の天井Ｓに、碍子Ｉを介して、吊架金具Ｈで連続的に吊支することにより構成される。電車線材２は、銅、銅合金等の良導電性金属で形成され、平板状の支持板部３と、それの中央から垂直に延出する垂直板部４とを具備する。電車線材２の吊支状態において、支持板部３は、ほぼ水平に伸び、垂直板部４は下方へ伸びる。垂直板部４の下縁部に形成された突条４ｂから下の所定の上下幅が、パンタグラフの摺動による摩耗許容範囲４ａに設定される。
【００１１】
図３乃至図６によく示すように、電車線材２の両端部における垂直板部４には、支持板部３の終端３ａより所定寸法長く延出した延出部４ｃが設けられ、かつこの延出部４ｃから支持板終端３ａより内側に所定の長さ入り込んだ範囲にわたって、接続部４ｄが形成される。接続部４ｄは、その厚さが、垂直板部４の他の部位の１／２に設定される。相隣接する電車線材２，２の支持板部３，３同士を突き合わせ、かつ接続部４ｄ，４ｄ同士を重合させてボルト、ナット５にて締め付けることにより、両者が接続される。
【００１２】
相隣接する電車線材２の接続部位には、両電車線材２の支持板部３上にわたるように、補強部材６が重合され、ボルト、ナット７にて締め付け固定される。この補強部材６は、望ましくは電車線材２と同材質で構成され、電車線材２の支持板部３に重なる重合板部６ａとそれの中央から垂直に起立した補強リブ６ｂとを具備する。補強リブ６ｂの両側において、重合板部６ａが、ボルト、ナット７にて支持板部３に締め付け固定される。
【００１３】
【発明の効果】
以上のように、本発明においては、電車線材２が、直接、隧道の天井Ｓに支持される一体型であるから、部品点数が少なく施工及びメンテナンスが容易であり、また良好な導電性能を有する。電車線材２は、支持板部３と垂直板部４とが一体に構成されているから、縦方向の曲げ剛性が高く、従って、電車が時速160km程度の高速走行をしても変形することがなく、良好な集電性能を長期にわたって維持できる剛体電車線１を提供する。突条４ｂによって、電車線材２の摩耗許容範囲４ａの摩耗量を測定しやすく、摩耗限界を容易に確認できる。電車線材２の両端部に延出部４ｃと、接続部４ｄとを設け、相隣接する電車線材２の接続部４ｄ同士を重合させ、ボルト、ナット５にて締め付けることで、隣接電車線材２を接続するから、電気的接触面積を広く確保できる。電車線材２の相互接続部位における、隣接支持板部３上に補強部材６を重合し、ボルト、ナット７にて締め付け固定するから、相互接続部位における電車線材２の縦方向の剛性が強化され、さらに広い電気的接触面積が確保できる。補強部材６は、重合板部６ａと補強リブ６ｂとを具備するから、強固であり、電車線材２の縦方向の剛性の増強に資する。
【図面の簡単な説明】
【図１】図１は本発明に係る剛体電車線の正面図である。
【図２】図１におけるII−II断面図である。
【図３】本発明に係る剛体電車線の接続部位の正面図である。
【図４】図３におけるIV−IV断面図である。
【図５】本発明に係る剛体電車線の接続部位の底面図である。
【図６】本発明に係る電車線材の端部の斜視図である。
【符号の説明】
１剛体電車線
２電車線材
３支持板部
４垂直板部
４ａ摩耗許容範囲
４ｂ突条
４ｃ延出部
４ｄ接続部
５ボルト、ナット
６補強部材
７ボルト、ナット
Ｉ碍子
Ｈ吊架金具
Ｓ天井[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rigid train line that is suspended substantially horizontally by a hanging bracket on a ceiling of a railway along a train track in order to supply driving power to the train.
[0002]
[Prior art]
As a conventional rigid train line, a conductive molding material such as an aluminum alloy or conductive steel is supported on a ceiling of a tunnel by a hanging bracket via an insulator, and a trolley using a number of ears on the lower edge of the supporting conductor. There is a known method for fixing the wires together. In addition, a conductive steel rail is supported on the ceiling of the tunnel by a hanging bracket via an insulator, and in order to improve conductivity, a flat wire made of aluminum or copper is provided on both sides of the conductive steel rail over the entire length. A system is known in which a large number of bolts are integrated and fixed, and the pantograph slides on the lower surface of the conductive steel rail.
[0003]
[Problems to be solved by the invention]
Of the above conventional methods, the former requires a great deal of work since the support conductors supported on the ceiling are connected to each other by argon gas welding in the erection work, and then the trolley wire is fixed to the support conductor with the ear. There are many parts and maintenance is not easy. Since the connecting portions of the support conductor are abutted with each other, the electrical contact area is small and the conductivity is impaired.
In the latter, the conductivity of the conductive steel rail is inferior to that of copper or aluminum. Further, since the electrical and mechanical performance is easily impaired by the generation of rust, maintenance is not easy. Since the connecting portions of the conductive steel rails are also brought into contact with each other between the vertical planes, there are problems such as a small electrical contact area and a loss of conductivity.
Therefore, an object of the present invention is to provide a support conductor integrated rigid train line that can be easily installed and maintained and can maintain good conductive performance over a long period of time.
[0004]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, in the first invention, a long train wire 2 formed of a highly conductive metal such as copper or copper alloy is continuously suspended from a ceiling S of a tunnel by a suspension fitting H. Thus, the rigid train line 1 is constructed. The train wire 2 is provided with a flat plate-like support plate portion 3 extending substantially horizontally in a suspended state and a vertical plate portion 4 extending vertically downward from the center thereof. A predetermined vertical width of the lower edge of the vertical plate portion 4 is set to an allowable wear range 4a due to sliding of the pantograph. Since the train wire 2 is an integral type that is directly supported by the ceiling S of the tunnel and does not use a separate support member, the number of parts is small, construction and maintenance are easy, and good electrical conductivity is provided. Since there is no separate support member and the train wire 2 itself has the function of a support member, it is possible to design the required rigidity and electrical performance appropriately, and the longitudinal direction per unit weight compared to other methods. Therefore, it does not deform even when the train travels at a high speed of about 160 km / h, and maintains good current collection performance over a long period of time.
[0005]
In the second invention, the vertical plate part 4 at both ends of the electric wire 2 of the first invention is provided with an extension part 4c extending longer than the support plate part 3 by a predetermined dimension, and from the extension part 4c. A connecting portion 4d having a thickness set to ½ of the other portion is formed over a predetermined length range inside the support plate end surface 3a. The adjacent train wires 2 are connected by abutting the end faces 3a of the support plate portions 3 of the adjacent train wires 2 and overlapping the connection portions 4d and fastening them with bolts and nuts 5. Since the connecting portions 4d are polymerized, a wide electric contact area can be secured.
[0006]
In the third aspect of the invention, the reinforcing member 6 is superposed on the interconnection part of the electric wire 2 according to the second aspect of the invention so as to extend over the support plate portion 3 of both electric wires 2 and fixed with bolts and nuts 7. To do. The reinforcing member 6 reinforces the longitudinal rigidity of the train wire 2 at the interconnection site, and can secure a wider electrical contact area.
[0007]
In the fourth invention, the reinforcing member 6 in the third invention is provided with the overlapped plate portion 6a and the reinforcing rib 6b. The overlapping plate portion 6a overlaps with the support plate portion 3 of the train wire 2 and the reinforcing rib 6b is erected vertically from the center of the overlapping plate portion 6a. On both sides of the reinforcing rib 6 b, the overlapping plate portion 6 a is fastened and fixed to the support plate portion 3 with bolts and nuts 7. By the reinforcing member 6 provided with the reinforcing rib 6b, the longitudinal rigidity of the train wire 2 at the interconnected portion is further strengthened.
[0008]
In 5th invention, the protrusion 4b is formed along the edge part of the abrasion tolerance | permissible_range 4a in the vertical board part 4 of the train wire 2 which concerns on 1st invention. In this case, the wear amount of the train wire 2 can be easily measured, and the wear limit can be easily confirmed.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings. 1 is a front view of a rigid train line according to the present invention, FIG. 2 is a sectional view taken along the line II-II in FIG. 1, FIG. 3 is a front view of a connecting portion of the rigid train line according to the present invention, and FIG. -IV sectional drawing, FIG. 5 is a bottom view of the connection part of the rigid electric wire which concerns on this invention, FIG. 6 is a perspective view of the edge part of the electric wire which concerns on this invention.
[0010]
In FIG. 1, a rigid train line 1 is configured by continuously suspending a long train wire 2 on a ceiling S of a tunnel through a lever I with a suspension metal fitting H. The train wire 2 is made of a highly conductive metal such as copper or copper alloy, and includes a flat plate-like support plate portion 3 and a vertical plate portion 4 extending vertically from the center thereof. In the suspended support state of the train wire 2, the support plate portion 3 extends substantially horizontally, and the vertical plate portion 4 extends downward. A predetermined vertical width below the protrusion 4b formed on the lower edge portion of the vertical plate portion 4 is set to an allowable wear range 4a due to sliding of the pantograph.
[0011]
As shown in FIG. 3 to FIG. 6, the vertical plate portion 4 at both ends of the train wire 2 is provided with an extension portion 4 c that extends longer than the terminal end 3 a of the support plate portion 3 by a predetermined dimension. A connecting portion 4d is formed over a range of a predetermined length from the protruding portion 4c to the inside of the support plate end 3a. The thickness of the connection part 4d is set to ½ of the other part of the vertical plate part 4. The support plate portions 3 and 3 of the adjacent train wire rods 2 and 2 are abutted with each other, and the connection portions 4d and 4d are overlapped with each other and tightened with bolts and nuts 5, whereby the two are connected.
[0012]
A reinforcing member 6 is superposed on the connecting portions of the adjacent train wires 2 so as to extend over the support plate portions 3 of the both train wires 2, and is fastened and fixed with bolts and nuts 7. The reinforcing member 6 is preferably made of the same material as the train wire 2 and includes a superposed plate portion 6a that overlaps the support plate portion 3 of the train wire 2 and a reinforcing rib 6b that stands vertically from the center thereof. On both sides of the reinforcing rib 6 b, the overlapping plate portion 6 a is fastened and fixed to the support plate portion 3 with bolts and nuts 7.
[0013]
【The invention's effect】
As described above, in the present invention, since the train wire 2 is an integral type that is directly supported by the ceiling S of the tunnel, the number of components is small, construction and maintenance are easy, and good conductive performance is provided. . The train wire 2 is composed of the support plate portion 3 and the vertical plate portion 4 so that it has a high bending rigidity in the vertical direction. Therefore, it can be deformed even if the train travels at a high speed of about 160 km / h. There is provided a rigid train line 1 that can maintain good current collection performance over a long period of time. By the protrusion 4b, it is easy to measure the wear amount of the allowable wear range 4a of the train wire 2, and the wear limit can be easily confirmed. By providing extension portions 4c and connecting portions 4d at both ends of the train wire 2, the connecting portions 4d of the adjacent train wires 2 are superposed, and tightened with bolts and nuts 5, so that the adjacent train wires 2 are Since it is connected, a wide electrical contact area can be secured. Since the reinforcing member 6 is superposed on the adjacent support plate 3 at the interconnection part of the train wire 2 and is fastened and fixed with bolts and nuts 7, the longitudinal rigidity of the train wire 2 at the interconnection part is enhanced. A wider electrical contact area can be secured. Since the reinforcing member 6 includes the overlapping plate portion 6a and the reinforcing rib 6b, the reinforcing member 6 is strong and contributes to the enhancement of the rigidity in the vertical direction of the train wire 2.
[Brief description of the drawings]
FIG. 1 is a front view of a rigid train line according to the present invention.
FIG. 2 is a cross-sectional view taken along the line II-II in FIG.
FIG. 3 is a front view of a connecting portion of a rigid train line according to the present invention.
4 is a cross-sectional view taken along line IV-IV in FIG.
FIG. 5 is a bottom view of a connecting portion of a rigid train line according to the present invention.
FIG. 6 is a perspective view of an end portion of a train wire according to the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rigid train line 2 Train wire 3 Support plate part 4 Vertical plate part 4a Wear tolerance 4b Projection 4c Extension part 4d Connection part 5 Bolt, nut 6 Reinforcement member 7 Bolt, nut I Insulator H Suspension bracket S Ceiling

Claims

電車線路に沿って、隧道の天井に吊架金具でほぼ水平に吊支され、吊支状態においてほぼ水平に伸びる平板状の支持板部と、それの中央から垂直下方へ延出する垂直板部とを具備する長尺一体の銅又は銅合金製の電車線材を長手方向に多数接続して成る剛体電車線であって、
前記垂直板部下縁の所定の上下幅が、パンタグラフの摺動による摩耗許容範囲に設定され、この摩耗許容範囲の限界に沿って長手方向に伸びる突条が形成されており、
前記電車線材の長尺方向両端部における前記垂直板部には、前記支持板部より所定寸法長く延出した延出部が設けられ、かつこの延出部から支持板部端より内側の所定の長さ範囲にわたって、その厚さが他の部位の１／２に設定された接続部が形成され、相隣接する電車線材の支持板部端同士を突き合わせ、かつ接続部同士を重合させてボルト、ナットにて締め付けることにより、相隣接する電車線材が接続されることを特徴とする剛体電車線。A plate-like support plate part that is suspended almost horizontally by suspension brackets on the ceiling of the railway along the train track, and extends substantially horizontally in the suspended state, and a vertical plate part that extends vertically downward from the center of the support plate part. A rigid electric train wire formed by connecting a large number of long-length copper or copper alloy electric wires in the longitudinal direction,
A predetermined vertical width of the lower edge of the vertical plate portion is set to an allowable wear range by sliding of the pantograph, and a ridge extending in the longitudinal direction along the limit of the allowable wear range is formed.
The vertical plate portion at both ends in the longitudinal direction of the train wire is provided with an extension portion extending a predetermined dimension longer than the support plate portion, and a predetermined inner portion from the extension portion to the end of the support plate portion. Over the length range, a connection part whose thickness is set to 1/2 of the other part is formed, the support plate ends of the adjacent train wires are butted together, and the connection parts are superposed to form a bolt, Rigid train lines characterized in that adjacent train wires are connected by tightening with nuts.

前記相隣接する電車線材の接続部位には、両電車線材の支持板部上にわたるように、補強部材が重合され、ボルト、ナットにて締め付け固定されることを特徴とする請求項１に記載の剛体電車線。The connecting portion of the catenary member adjacent said phase, as over on the support plate portions of the catenary member, the reinforcing member is polymerized, a bolt, according to claim 1, characterized in that it is fastened by a nut Rigid train line.

前記補強部材は、前記電車線材の支持板部に重なる重合板部とそれの中央から垂直に起立した補強リブとを具備し、この補強リブの両側において重合板部が、前記ボルト、ナットにて支持板部に締め付け固定されることを特徴とする請求項１に記載の剛体電車線。The reinforcing member includes a superposed plate portion that overlaps a support plate portion of the train wire, and a reinforcing rib that stands vertically from the center thereof, and the superposed plate portions on both sides of the reinforcing rib are formed by the bolts and nuts. The rigid train wire according to claim 1, wherein the rigid train wire is fastened and fixed to the support plate portion.

前記突条が、前記電車線材の前記垂直板部の左右両側面に形成されることを特徴とする請求項１に記載の剛体電車線。The rigid train wire according to claim 1 , wherein the protrusions are formed on the left and right side surfaces of the vertical plate portion of the train wire.