JP2689036B2 - Third track current collector - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a train current collector for collecting and traveling from a third track.

[0002]

2. Description of the Related Art FIG. 5 is a schematic view of a conventional third railroad current collector. In FIG. 5, reference numeral 1 denotes a mounting frame, which is supported by an axle box (not shown) of a bogie via an insulator. A current collecting shoe 2 is rotatably supported by a pin 3 from a mounting frame. The lower surface 2a of the one end portion of the current collecting shoe 2 is a sliding surface, and contacts and slides on the third rail 5 to collect current. Reference numeral 4 denotes a spring, which applies a pressing force to the third rail 5 on the sliding surface 2a of the current collecting shoe 2.

[0003]

In the above-mentioned conventional current collector, the mass of the current collecting shoe 2 is large and the spring 4 is
Since it is only pressed against the 3rd track, there is a drawback that the derailment frequently occurs due to the irregularity of the track surface or the support point of the track that becomes a hard point of the track when the vehicle runs at high speed. If the pressing force is increased to reduce the separation, the wear of the current collecting shoes increases and the life of the current collecting shoes decreases.Therefore, it is difficult to use the conventional current collecting device for a vehicle running at high speed. It was

[0004]

SUMMARY OF THE INVENTION The present invention solves the drawbacks of the prior art and provides a third rail current collector capable of traveling at high speed. As a means thereof, a support rod is attached to a mounting shaft supported through a parallel link from a mounting frame mounted on a bogie frame, and each of the contact plates arranged in a plurality of rows in a predetermined direction in the vehicle traveling direction is provided. It has a structure in which a rubber spring having a spring constant and a damping coefficient is supported, these plural rows of rubber springs are attached to the support rod, and adjacent rubber springs are rotatably connected by pins and links. is there.

[0005]

Since the current collector of the present invention has the above structure,
Since the contact plate portion that directly contacts the third track has a small mass, and the rubber spring has an appropriate spring constant and damping coefficient, the support point of the third track or the track surface does not give an excessive pressing force. The impact force exerted during traveling due to irregularities in the surface is mitigated to provide high followability and wear of the contact strips is reduced. Since the weighted contact strips are arranged in a plurality of rows in the traveling direction of the vehicle, the probability of derailment of the entire current collector is further reduced even when the vehicle is traveling at high speed, and good followability is obtained. In addition, by connecting the adjacent rubber springs with the pin and the link, it is possible to sufficiently increase the rigidity in the traveling direction of the vehicle without impairing the flexible elasticity of the individual sliding plates in the vertical direction. .

[0006]

1 to 4 show an embodiment of a third track current collector of the present invention. FIG. 1 is a front view, FIG. 2 is a view as seen from the arrow of FIG. 1, and FIG. A plan view of the link portion and FIG. 4 are side views of the same. In FIGS. 1 to 4, 10 is a mounting frame, which is supported by a bogie frame through an insulator (not shown).
A parallel link 11 is rotatably supported by the mounting frame 10, and one end of this one is pressed by the spring 12 to apply a pressing force to the contact plate portion. Reference numeral 13 denotes a mounting shaft of a current collecting shoe which is rotatably supported by the other ends of the two parallel links and is movable in the vertical direction by the parallel link 11. A support rod 14 is attached to the lower end of the mounting shaft 13 for attaching the contact plate portion. The support rod 14 is arranged in parallel with the third rail 5, and a plurality of rubber springs 15 are arranged and fastened on both side surfaces in the vehicle traveling direction. At both ends of the rubber spring 15, metal fittings 15 and 15b are molded in one body, and the upper metal fitting 15a is fastened to the support rod 14 and the lower metal fitting.
A friction plate 16 is fastened to the lower surface of 15b, a pin 17 is fixed to the side surface by a method such as welding, and the end of the pin is threaded. A plurality of rubber springs 15 arranged in the vehicle traveling direction
Are adjacent to each other and are connected by a link 18 via a pin 17. 19 is a spacer, and 20 is a nut fastened to the end of the pin 17. Reference numeral 21 is a conducting wire that connects the metal fittings 15a and 15b and transmits the power collected by the sliding board 16 to the support rod 14. Next, the operation will be described.

During traveling of the vehicle, the sliding plate 16 is brought into sliding contact with the third rail 5 to collect current. An impact force or the like acts on the contact plate 16 due to the irregularity of the track surface during traveling, but a rubber spring 15 for a small vertical displacement of the contact plate portion, and a parallel link 11 for a large displacement of the contact plate. The part follows well with the third track. This is because the current collector of the present invention has a much smaller mass of the sliding plate portion than the conventional current collector, and this is supported by the rubber spring 15 having appropriate elasticity and damping, and the vehicle traveling direction. Are arranged in multiple rows with respect to each other, and each of these contact strips has a structure capable of independently following the third track, and the current collecting shoe portion formed by the components 13 to 20 is smooth. It is supported by a parallel link 11 which is vertically displaced. Since each of the plurality of contact strip rows is supported by the rubber spring 15 having flexible elasticity in the vertical direction, the rigidity of each of the contact strips 16 in the vehicle traveling direction is reduced to some extent. Link adjacent to pin 17
The connection at 18 prevents the reduction of the rigidity of each rail in the vehicle traveling direction.

The influence of the mounting of the link 18 on the vertical displacement of the contact plate 16 is absorbed by the play between the pin 17 and the pin hole of the link 18 and the slight distortion of the rubber spring 15 in the vehicle traveling direction, It does not hinder the small vertical displacement of the scraper plate 16 at all. In this example, the link
Length of 18 is 80 mm, clearance between pin hole of link and pin 17 is 0.1 m
When m, the upper limit displacement of the contact plate 16 that can move due to this play is ± 4 mm (calculation omitted), and the link 18 is the contact plate.
It does not hinder the 16 minute vertical displacements. This current collector is characterized by a structure that has a plurality of rows of sliding plates supported by flexible elasticity and links that maintain rigidity in the vehicle traveling direction as described above, and enables high-speed running of the vehicle without giving an excessive pressing force. This is a possible current collector.

[0009]

As described above, the third rail current collector of the present invention reduces the mass of the contact plate portion that is in direct sliding contact with the third rail and supports it with the rubber spring 15, and further Since the sliding plates are arranged in a plurality of rows in the traveling direction of the vehicle, they can be used with high followability without giving an excessive pressing force to high-speed running. In addition, by connecting the adjacent sliding plates with the link 18, it is possible to prevent the rigidity in the vehicle traveling direction from being lowered without inhibiting the vertical displacement of the sliding plates. This current collector is characterized by the above configuration. With this configuration, a vehicle that collects current from the third track and travels at high speed can travel stably and with high followability without giving an excessive pressing force. It is what

[0010]

[Brief description of the drawings]

FIG. 1 is a front view of a third track-type current collector according to an embodiment of the present invention.

FIG. 2 is a view as seen from the arrow of FIG.

FIG. 3 is a plan view of a link portion.

FIG. 4 is a side view of the same.

FIG. 5 is a schematic view showing an example of a conventional third railroad current collector.

[0011]

[Explanation of symbols]

 1 Mounting frame 2 Current collecting shoes 5 3rd rail 10 Mounting frame 11 Parallel link 14 Supporting rod 15 Rubber spring 16 Contact plate 17 Pin 18 Link 19 Spacer

Claims (1)

(57) [Claims] 1. A support rod is attached to a mounting shaft supported through a parallel link from a mounting frame mounted on a bogie frame, and each of the contact plates arranged in a plurality of rows in the vehicle traveling direction is provided with a predetermined spring. Supported by a rubber spring with constant and damping coefficient,
A third rail current collector, wherein a plurality of rows of rubber springs are attached to the support rod, and adjacent rubber springs are rotatably connected by pins and links.