JPH05244703A - Carbon slider collector shoe for pantograph - Google Patents

Abstract

PURPOSE:To realize stabilized brazing by making it easy to discharge excessive solder and making uniform the thickness of solder and the cooling speed of brazing surface when a carbon slider is brazed to the collector shoe of a pantograph. CONSTITUTION:A carbon slider is split in the longitudinal direction into a plurality of sections 1A, 1B, 1C which are then brazed through a gap 1E to a shoe body 2. A groove is made in the brazing surface of the carbon slider in parallel with the longitudinal direction thereof and substantially in the center in lateral direction.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantograph collector ship, and more particularly to a structure of a pantograph carbon scraper collector ship in which carbon or a carbon scrap plate containing carbon as a main material is brazed to a ship body and joined. ..

[0002]

2. Description of the Related Art Carbon or carbon-based carbon strips, which have carbon as their main material, have the advantages of excellent lubricity and arc resistance and low sliding noise with overhead lines, but they are not suitable as carbon strips because of their low strength. Due to the complicated method of manufacturing and attaching the carbon friction plate to the boat, such as brazing the reinforcing material, or processing the carbon friction plate into a special shape and attaching it to the boat with a separately provided press fitting, JP-A-3-226202 discloses a conventional example in which the man-hours for manufacturing the carbon contact plate and the man-hours for attaching the carbon contact plate to the boat are reduced by directly brazing the carbon contact plate to the boat.

FIG. 4 is a plan view including a partial cross-section showing the structure of a conventional example of a carbon friction plate current collecting boat constructed by brazing carbon or a carbon friction plate containing carbon as a main material to a boat. 5 is the front view. In FIG. 4 and FIG. 5, the long carbon ridge plate 1 is brazed to the boat body 2 having a rectangular tube shape. When the carbon contact plate 1 wears to the limit of use, it will be replaced as a consumable item along with the boat body 2, so an auxiliary wire is provided at both ends in the longitudinal direction of the boat body 2 to prevent the overhead wire from being caught under the boat body. Horn 4 and boat 2
Separately from the above, the auxiliary horn 4 is connected to the boat body 2 by a bolt 5 via a receiving metal 3.

On the upper surface of the auxiliary horn 4, an auxiliary sliding plate 6 is provided to prevent the auxiliary horn 4 from sliding and wearing against the overhead wire.
Is provided.

[0005]

When brazing a carbon friction plate to a boat, it is ideal that the brazing thickness is thin and uniform at the joint surface where the carbon abrasion plate and the boat are brazed. However, in such a conventional structure, excess brazing tends to remain near the central portion between the longitudinal direction and the width of the joint surface.

Therefore, an object of the present invention is to make it easy to discharge excess brazing filler metal when brazing the carbon contact plate and the boat, and to make the brazing thickness and the cooling rate of the brazing surface uniform and stable. It provides the structure of a collector boat that can be brazed.

[0007]

In order to achieve the above-mentioned object, according to the present invention, carbon which is in contact with an overhead wire or carbon which is mainly composed of carbon is slid on a boat attached to the top of a pantograph. In a pantograph carbon sliding plate current collecting boat configured by brazing a sliding plate, the carbon sliding plate is divided into a plurality of parts in the longitudinal direction, and a gap is provided on the divided surface to be brazed to the boat body.

Further, a groove is provided on the surface of the carbon friction plate on which the boat body is brazed, in parallel with the longitudinal direction of the carbon friction plate and near the central portion in the width direction.

[0009]

According to the structure of the present invention, the carbon scraping plate is divided into a plurality of parts in the longitudinal direction, and the split face is provided with a gap to be brazed to the boat body. By providing a groove parallel to the longitudinal direction of the carbon contact plate and near the center in the width direction, excess brazing during brazing prevents the carbon It is discharged from both sides of the width of the contact strip and the groove provided near the center of the width of the contact strip,
It is possible to make the thickness of the wax uniform and the cooling rate uniform.

[0010]

1 is a plan view showing the structure of an embodiment of the present invention,
2 is a front view thereof, and FIG. 3 is a cross-sectional view of FIG. 1 viewed from C-C. 1, FIG. 2 and FIG. 3, the uses, functions, etc. of the boat body 2, the receiving member 3, the auxiliary horn 4, the bolt 5 and the auxiliary sliding plate 6 have already been described in the conventional example shown in FIG. 5 and FIG. Since these are the same as those described above, their description will be omitted.

In this embodiment, a long carbon strip is divided into three longitudinal carbon strips 1A and 1B.
1C and 1C are brazed to the boat body 2, and a gap 1E is provided on each of these divided surfaces. Further, as shown in FIG. 3, grooves 1D are provided on the brazing surfaces of these carbon contact plates 1A, 1B and 1C in parallel with the longitudinal direction of the carbon contact plates and near the center in the width direction as shown in FIG. ..

Excessive brazing during brazing is provided on both sides of the width of the carbon scraping plate and near the center of the width of the scraping plate, and the gap 1E provided on the dividing surface obtained by dividing the carbon scraping plate in the longitudinal direction. Is discharged from the groove 1D. Also, the flatness of the brazing surface can be easily obtained.

[0013]

According to the present invention, the excess brazing filler metal during brazing has gaps formed on the dividing surfaces of the carbon scraping plate divided in the lengthwise direction, both sides of the width of the carbon scraping plate and the width of the carbon scraping plate. It is discharged from the groove provided near the center, and the thickness of the brazing material and the cooling rate of the brazing surface become uniform, and the carbon friction plate and the boat are brazed stably and firmly.

[Brief description of drawings]

FIG. 1 is a plan view showing a structure of an embodiment of the present invention.

FIG. 2 is a front view showing the structure of the embodiment of the present invention.

FIG. 3 is a cross-sectional view of FIG. 1 viewed from CC.

FIG. 4 is a plan view including a partial cross-section showing the structure of a conventional example of a carbon contact plate current collector.

FIG. 5 is a front view showing the structure of a conventional example of a carbon slab current collector.

[Explanation of symbols]

 1A Carbon scraping plate 1B Carbon scraping plate 1C Carbon scraping plate 1D Groove 1E Gap between split faces of carbon scraping plate 2 Boat body

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Takashi Ogata 1-1 Shinden Tanabe, Kawasaki-ku, Kawasaki-shi, Kanagawa Fuji Electric Co., Ltd.

Claims (2)

[Claims] 1. A carbon slide plate current collecting boat for a pantograph, which is constructed by brazing carbon or a carbon slide plate containing carbon as a main material in contact with an overhead wire to a boat body attached to the top of the pantograph. A carbon scraper current collecting boat of a pantograph, characterized in that a carbon scraper is divided into a plurality of parts in the longitudinal direction and is brazed to a boat body with a gap between the divided faces. 2. The method according to claim 1, wherein a groove is provided on a surface of the carbon contact plate on which the boat body is brazed, in parallel with the longitudinal direction of the carbon contact plate and near the center in the width direction. A pantograph carbon scraper current collector.