JPH06227294A - Overhead electric car cable mounting method under low head clearance facility structure - Google Patents

Abstract

PURPOSE:To stabilize a pantograph as a simple catenary overhead cable using a simple configuration and achieve speed-up of electric cars. CONSTITUTION:A catenary electric car cable of overhead single-line type is so structured that the overhead cables 6 on both sides of a low head clearance facility structure 1 are connected with two aux. trolley lines 9 through two-gang yokes 8. The main trolley line 4 is hung by a special hanging tool till near the structure 1 by the aux. trolley lines 9, and the main line and aux. lines are set over parallel under the structure. Because the three lines are set parallel under the structure, the pantograph is made stable, and it is also possible to feed electricity from aux. troley lines connected with the overhead cable, and electric cars can run at a high speed without deceleration even under any low head clearance facility structure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of suspending an electric line under a low overhead facility structure such as a station overpass.

[0002]

2. Description of the Related Art A train line under a low overhead facility structure, such as a station overpass, does not have a height area where a trolley wire is suspended by a suspension line. A support, for example, a truss beam is arranged on the above, a suspension wire is retained on this support, and a trolley wire is suspended under the low-vacancy facility structure.

[0003]

Therefore, in the conventional suspension method, the equipment structure is duplicated, the structure is complicated, and the speed of the electric train is limited as a direct tension overhead wire, so that high speed traveling is difficult. In addition, the trolley wire single wire has a drawback that the pantograph oscillates and becomes unstable.

It is an object of the present invention to provide a simple catenary overhead wire having a simple structure and a suspension method that stabilizes the pantograph and speeds up the vehicle.

[0005]

The present invention has been made to achieve the above-mentioned object, and the suspension overhead wires on both sides of the low head facility structure are respectively connected to two auxiliary trolley wires via double yokes. Then, with this auxiliary trolley wire, the main line trolley wire was hung up to the vicinity of the low air head facility structure with a special suspension tool, and the main line and both auxiliary trolley wires were stretched in parallel under the low air head facility structure. That is the summary.

[0006]

[Operation] Two auxiliary trolley wires are connected to the suspension overhead wire on both sides of the low air-head facility structure via two yokes, and these auxiliary trolley wires are parallel on both sides of the trolley wire under the low air-head facility structure. And hang it up at approximately the same height.
As a result, since the main trolley wire and the auxiliary trolley wire are parallel to each other under the low head structure structure, the pantograph is also stable, and power can be supplied from the auxiliary trolley wire connected to the suspension wire. Even under an object, the vehicle can run at high speed without slowing down.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for suspending an electric line under a low-head facility structure of the present invention will be described below with reference to the illustrated embodiments. In the figure, 1 is a low overhead facility structure such as a station overpass, and 2 and 2 are parallel to the low overhead facility structure at the front-rear position (relative to the vehicle running direction) of this low overhead facility structure, that is, the direction crossing the track. A support such as a lattice beam, which is disposed at the both ends, is supported at a required height by columns 3 at both ends thereof. Reference numeral 4 is a main line trolley line, which is stretched along the line at a predetermined height so as to pass below the low-vacancy facility structure, and at the position above the trolley line 4, power is supplied via a hanger 5 A suspension overhead wire 6 for suspending the trolley wire 4 is provided as much as possible.

The suspension overhead wire 6 is located at positions of the supports 2 and 2 which are arranged so as to sandwich the low overhead structure, and a swivel or a universal joint fitting 7 for absorbing the twisting force of the suspension overhead wire 6 is used to connect the suspension wires 6 to
Both ends of two auxiliary trolley wires 9, 9 connected to the connecting yoke 8 and stretched between both supports 2, 2 are connected to the two connecting yokes 8, 8 and the auxiliary trolley wire is connected. Insulator 1
It is supported by the supports 2 and 2 at 0 and 10. Then, in order to adjust the tension of the auxiliary trolley wires 9 and 9, if necessary, vertical force turnbuckles 11 and 11 are interposed between the auxiliary trolley wires 9 and 9 and the double yoke 8.

Insulators 12, 12 are provided on both sides of the low head facility structure for supporting the main trolley wire 4 at a predetermined height, and two auxiliary trolley wires 9, 9 are provided by the insulators 12, 12.
Also suspended at the same time, under the structure of low head facility, 3
The trolley wires 9, 4, 9 are stretched in parallel with each other and the main trolley wire 4 is stretched at a substantially lower height than the other auxiliary trolley wires 9, 9 to form a pantograph and a main trolley wire.
Then, when it is slightly tilted, it comes into contact with the auxiliary trolley wire. Therefore, the auxiliary trolley wires 9 and 9 are stretched so that they are low under the low-air-capacity facility structure, and are stretched so as to be in high positions at both ends. In the section up to the supports 2 and 2 and the low-air-head facility structure, The two auxiliary trolley wires 9 and 9 are suspended via the hanger 13 and 13.

The two auxiliary trolley wires 9, 9 arranged in parallel are connected to each other so as to keep the distance constant. When there is a considerable difference in height between the auxiliary trolley wires 9 and 9 and the main trolley wire 4 in the vicinity of the support 2, the ear fittings 14 are attached to the auxiliary trolley wires 9 and 9 as shown in FIGS. The pipe 15 having the required length is fixed between the two ear fittings 14 and 14 which are opposed to each other, and the end of the pipe 15 and the ear fitting 14 are fixed with an eye fitting 16 so that both wires 9 and 9 are made of steel. And connect them together. From this pipe 15, hanger 13
To suspend and support the trolley wire 4.

Further, under the low-vacant-head facility structure, as shown in FIG.
As shown in FIG. 6, main trolley wire 4, auxiliary trolley wire 9, 9
Fix the support metal fittings 21 to the support metal fittings 21.
The trolley wire 4 is clamped from this pulley 19 by means of the cross metal fitting 21. In this case, there is no height difference between the auxiliary trolley wires 9 and 9 and the trolley wire 4. Then, depending on the inclination of the auxiliary trolley wire, the length of the pulley 19 supported by the pipe 22 is changed as shown in FIG. 6 so that the height of the main trolley wire 4 is constant and the auxiliary trolley wires 9 and 9 are suspended and supported. It is the one to be confused.

[0012]

EFFECTS OF THE INVENTION In the method for suspending a train line under a low overhead facility structure according to the present invention, the structure for suspending a train line under a low overhead facility structure can be made into a simple catenary-type simple structure, and high-speed correspondence is possible. It is possible to absorb the twist of the suspended overhead wire,
It has the advantage of stabilizing the running of the train.

[Brief description of drawings]

FIG. 1 is an inclined view showing a method of suspending an electric line under a low-head facility structure of the present invention.

FIG. 2 is a side view of the same.

FIG. 3 is a plan view of the same.

FIG. 4 is a front view of a suspension device that suspends and supports a main trolley wire from an auxiliary trolley wire at a position having a height difference.

FIG. 5 is a front view showing a suspension method under a low-head facility structure.

FIG. 6 is a side view of the same.

FIG. 7 is a front view of the suspension device in an intermediate position.

FIG. 8 is a front view of a universal joint fitting.

FIG. 9 is a plan view of the universal joint fitting.

[Explanation of symbols]

 1 Low head facility structure 2 Supports 4 Main wire trolley wire 5 Hunger wire 6 Suspended wire 7 Joint fitting 8 Double yoke 9 Auxiliary trolley wire 13 Hunger ear 14 Ear fitting 15 Pipe 16 Eye fitting 17 Cover 18 Pipe 19 Pulley 21 Cross fitting 22 pipes

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Shigeki Tanimori 2-1-3 Nishitsutsumakuencho, Higashiosaka City, Osaka Prefecture

Claims (1)

[Claims] 1. In an overhead single wire type catenary suspension type electric line, the suspension overhead lines on both sides of a low head facility structure are respectively connected to two auxiliary trolley wires via two yokes, and this auxiliary trolley wire is used. Low head facility The main line trolley wire is suspended by a special suspension tool near the structure, and the main line and both auxiliary trolley lines are stretched in parallel under the low head facility structure. A method of suspending a train line under a structure.