JPH11122705A - Collecting slider - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a collecting slider which makes it possible for a service person to easily check that it reaches wear limit. SOLUTION: Unpierced holes 2 which reach the depth of wear limit are provided on the surface opposite to the surface of a slider 1 on which a trolley wire slides. When the wear of the slider develops and reaches the wear limit, one of the unpierced holes 2 appears on the surface of a slider on which the trolley wire slides and thereby makes it possible for a service person to easily tell from a visual check or the like that it reaches wear limit. Whatever shape including round, oval or rectangular is applicable to the unpierced holes. Also, the combination of unpierced holes of different depths is effective and grooves may be provided instead of the unpierced holes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collecting plate for a pantograph for an electric railway vehicle, and more particularly to a current collecting plate for easily confirming that a wear limit has been reached. .

[0002]

2. Description of the Related Art In general, the measurement of wear on a current collecting slide plate of a pantograph for an electric railway vehicle is performed by climbing on a roof of the vehicle and placing a ruler on the slide plate. In recent years, as shown in FIG. 5, a laser device or an ultrasonic device 7 is provided in a trolley wire support facility 8 for supporting a trolley wire 9, and the distance between the ground plate 1 and the reference surface 6 is measured to thereby obtain the ground strip 1. A method for detecting the amount of wear has been developed and started to be used. Further, as shown in FIG. 6, a method has been proposed in which a side groove 10 is provided on the slide plate 1 and the time for replacing the slide plate is known by the wear of the slide plate 1 and the disappearance of the side groove 10 (Japanese Patent Laid-Open No. 08-0808). −
107603).

[0003]

The prior art has the following problems. (1) The method of directly placing a ruler on a ground plate requires a great deal of labor. (2) The method using a laser device or an ultrasonic device requires a reference surface, and in many cases, a place suitable as the reference plane is used for other applications such as a lubricant installation place. In order to measure two points on the wear surface, two measuring devices are required, and high cost is required to install the devices. (3) The method of forming the groove on the side surface of the sliding plate has a drawback that it is difficult to confirm due to adhesion of dirt such as abrasion powder and an arc prevention plate attached to the side surface of the sliding plate. The present invention has been made in order to solve the above-mentioned problems of the prior art, and it is an object of the present invention to easily check visually whether or not a slide plate has worn to a wear limit. Another object of the present invention is to provide a current collecting slide plate capable of detecting whether or not the slide plate has worn down to the wear limit by a relatively simple device.

[0004]

In order to solve the above-mentioned problems, in the present invention, the surface of the slide plate facing the trolley wire sliding surface (hereinafter referred to as the back surface of the slide plate) is provided with a maximum wear depth of the slide plate. Provide a non-through hole to reach. In the present invention, because of the above-described configuration, when the wear of the slide plate advances and reaches the wear limit, a non-through hole provided on the back surface of the slide plate appears on the trolley wire sliding surface of the slide plate. For this reason, it is possible to confirm that the wear limit has been reached, visually or without using a reference surface, by an inexpensive non-contact detector or the like.

[0005]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to FIGS.
This will be described below. FIG. 1 is a view showing a first embodiment of the present invention, and FIG. 1 (a) is a perspective view of a slide plate viewed from the back side,
FIG. 2B is a perspective view of the sliding plate worn to the wear limit as viewed from the side of a trolley wire sliding surface (hereinafter referred to as a surface), and FIG. 2C is a line AA in FIG. It is sectional drawing of the arrow direction. In FIG. 1, reference numeral 1 denotes a slide plate, and 2 denotes a non-through hole which reaches the wear plate wear limit depth. In the present embodiment, the appearance of the non-through hole 2 on the sliding surface of the sliding plate 1 makes it possible to know that the sliding plate 1 has worn down to the wear limit and that replacement is required.

FIG. 2 is a view showing a second embodiment of the present invention. FIG. 2 (a) is a perspective view of a sliding plate viewed from the back side, and FIG. FIG. 3C is a cross-sectional view taken along the line BB of FIG. 3B, and FIG. 3C is a cross-sectional view of the slide plate viewed from the front surface side. Is provided. In FIG. 2, 1
The strip 2 is an oblong non-through hole reaching the depth of the strip wear limit. In the present embodiment, similar to the first embodiment,
The appearance of the non-through hole 2 on the sliding surface of the slider 1 makes it possible to know that the slider 1 is worn down to the wear limit and that replacement is required. In addition, since the non-through hole is an oval extending in the longitudinal direction of the slide plate, the position of the hole,
The size and the extent of wear can be known from the size.

FIG. 3 is a view showing a third embodiment of the present invention. FIG. 3 (a) is a perspective view of a sliding plate viewed from the back side, and FIG. FIG. 3C is a perspective view of the sliding plate viewed from the front side, and FIG. 3C is a cross-sectional view taken along line CC of FIG. 3B. 3 shows a case where a non-through hole is provided. In FIG. 3, reference numeral 1 denotes a slide plate, 3 denotes a shallow non-through hole, 4 denotes a deep non-through hole, and the non-through hole 3 is a non-through hole having a depth corresponding to the wear limit of the slide plate. The non-through hole is deeper than the depth corresponding to the wear limit of the strip. In the present embodiment, a deep non-through hole 4 appears on the sliding surface of the slide plate 1,
It is possible to know that the replacement time of the slide plate 1 is approaching, and to know that the appearance of the shallow non-through hole 3 causes the wear plate 1 to be worn down to the wear limit and necessity of replacement. Can be.

FIG. 4 is a view showing a fourth embodiment of the present invention. FIG. 4A is a perspective view of a sliding plate viewed from the surface, and FIG. FIG. 4C is a perspective view of the plate as viewed from the front side, and FIG. 5C is a cross-sectional view taken along the line DD in FIG. 5B. In this embodiment, the slide plate has grooves instead of non-through holes. Is provided. In FIG. 4, reference numeral 1 denotes a slide plate, and reference numeral 5 denotes a groove which reaches the wear limit depth of the slide plate. In the present embodiment, the appearance of the groove 5 on the sliding surface of the slider 1 makes it possible to know that the slider 1 has worn to the wear limit and that replacement is necessary. Further, since the groove is provided instead of the non-through hole, any portion of the slide plate can be detected even if worn.

In the first to third embodiments,
If a colored solid substance such as black ink is put in the non-through hole, it becomes easier to confirm. When the method of adding colored black ink or the like is applied to the third embodiment,
For example, the color may be changed such that yellow black ink is put in deep non-through holes and red black ink is put in shallow non-through holes.

[0010]

As described above, according to the present invention, since the non-through hole which reaches the wear limit depth of the slide plate is provided on the back surface side of the slide plate, whether or not a hole appears on the sliding surface of the slide plate is determined. It is possible to confirm whether or not the slider has worn down to the wear limit by simply seeing it. Also, when using a measuring device,
Since it is only necessary to detect the presence or absence of a hole, it is possible to obtain a slide plate that does not require much labor or equipment investment for inspection work.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a first embodiment of the present invention.

FIG. 2 is a perspective view showing a second embodiment of the present invention.

FIG. 3 is a perspective view showing a third embodiment of the present invention.

FIG. 4 is a perspective view showing a fourth embodiment of the present invention.

FIG. 5 is a perspective view showing a conventional technique.

FIG. 6 is a perspective view showing another conventional technique.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide plate 2 Non-through hole 3 Shallow non-through hole 4 Deep non-through hole 5 Groove 6 Reference surface 7 Laser or ultrasonic device 8 Trolley wire support equipment 9 Trolley wire 10 Side groove

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shoichi Sakota 2-6-1 Marunouchi, Chiyoda-ku, Tokyo Inside Furukawa Electric Co., Ltd. (72) Akira Hideno 2-6-1, Marunouchi, Chiyoda-ku, Tokyo No. Furukawa Electric Co., Ltd.

Claims (1)

[Claims] 1. A current collector slide plate for an electric vehicle, wherein a non-through hole is formed on a surface of the slide plate opposite to a trolley wire sliding surface to reach a limit of a wear depth of the slide plate. .