JP3779149B2 - Rigid train line - Google Patents

Description

[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 (4)

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. 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. 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. 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.

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