JPH0436161Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Field of Industrial Application] The present invention relates to an improvement of a current collector boat device for an electric vehicle.

[Conventional technology]

In general, carbon slide plates or metal slide plates are used for the sliding contact part of the collector boat of a pantograph. Metal slide plates have a larger current collection capacity than carbon slide plates, but they are less lubricating when sliding in contact with overhead wires. It's bad. Therefore, especially when metal sliders are used, solid lubricants (hereinafter simply referred to as lubricants) are used to improve lubricity and reduce wear caused by sliding contact between the slider and the overhead wire.

Therefore, a conventional collector boat for a pantograph will be explained below based on the drawings.

Fig. 6 is a perspective view of the main parts of an example of a conventional pantograph collector boat, Fig. 7 is a sectional view taken along the line A-A in Fig. 6, and Fig. 8 shows another example similar to Fig. 7. In FIG. 6, two rows of sliding plates 2, 2 of the same height are fixed to the flat upper surface of the collector boat 1 with bolts, etc., and a lubricating plate formed in advance is placed between them. The material 3 is attached with double-sided adhesive tape or the like.

Further, as shown in FIG. 7, a support 4 is attached to the lower part of the collector boat 1, and the support 4 is pivotally supported so that the collector boat 1 can rotate with respect to the traveling direction of the vehicle. 5-6 to push the whole thing up to the overhead wire
A pressing force of Kg/cm ² is acting. Also, the sliding board 2, 2
The surfaces of the lubricant 3 and the lubricant 3 are finished so that they are on the same plane, that is, at the same height.

Next, in FIG. 8, the lubricant 5 is formed into a trapezoidal shape, and to prevent it from flying out, the lubricant 5 is held down by an inverted V-shaped structure and fixed with bolts or the like. The other parts have the same structure as the one in FIG.

Thus, when assembling the collector boat 1 in such a state, since the heights of the lubricants 3 and 5 are different, the sliders 2 and 2 and the lubricant 3 and the slider plates 6 and 6 and the lubricant 5 are It was necessary to perform surface finishing to make the heights of each part the same. Of course, this is not necessary if the lubricant 5 is lower than the sliders 2 and 6.

If the lubricant 3
If the contact wire is higher than the contact wires 6 and 6 and the contact wire is slid into contact with the contact wire without surface finishing, the contact resistance between the contact wire and the contact wire will increase, which will generate heat and cause a wire breakage accident. There are things that can be connected. Furthermore, if the overhead wire completely rides on the lubricants 3 and 5, current collection will be poor.

Therefore, an improved version in this respect is shown in FIGS. 4 and 5.

That is, FIG. 4 is a sectional view showing one conventional example similar to FIG. 7, and FIG. 5 is a sectional view showing another conventional example similar to FIG. The lubricant 8 is formed approximately 0.5 mm lower than the slider plates 2, 2, and similarly in FIG.

[Problem that the invention attempts to solve]

However, as mentioned above, improvements have been made in terms of wire breakage accidents, but on the other hand, the sliders 2 and 6 are approximately 0.5mm
The fact that the lubricants 7 and 8 are not effective until they are worn out is a major disadvantage. The lubricants 7 and 8 are provided to reduce rapid wear of the slider plates.

The present invention was devised in view of the above-mentioned points, and its purpose is to prevent the contact resistance between the overhead wire and the contact plate from becoming large, to prevent the overhead wire from riding on the contact plate, and to prevent the contact wire from riding on the contact line and the contact plate. The present invention provides a current collector device that is effective for materials.

[Means for solving problems]

In other words, the means to achieve this purpose is to slope or step the lubricant on the sliding contact side of the overhead wire in the transverse direction, so that one end is approximately below the height of the slide plate.
It is configured to be lowered by 0.5mm.

Furthermore, the inclination of the lubricant in the transverse direction can be made such that one of the lubricants is inclined from the center to the end so that the end is approximately 0.5 mm lower than the contact plate, and the other is approximately the same height as the contact plate. good. Further, when the lubricant is sloped or stepped, the high part may be the same as or slightly higher than the slider plate.

Next, its effect will be explained.

[Effect]

The surface of the lubricant of the present invention has few parts that are flush with the contact plate. Therefore, even if the surface of the lubricant is not applied, if a pantograph is pressed against the catenary, even if the lubricant comes into contact with the catenary, a rotational moment will act on the collector boat, and the slide plate with the lower lubricant will always touch the catenary. will be in direct contact with. As soon as the lubricant is in sliding contact with the overhead wire, the high portion of the lubricant is worn away, so there is no need to apply a final surface finish as in the conventional case. Furthermore, regarding the variation in the height of the lubricant, as mentioned above, the high parts will wear out quickly. The power collector boat 1 is constantly pushing up the overhead wire with a pressing force of 5 to 6 kg/ ^cm2 , so even if the surface of the lubricant is sloped or there is a difference in level, the power collector boat will not be able to move the vehicle forward. It rotates in the same direction, and the front and rear sliders wear out to approximately the same extent.

Embodiments of the present invention will be described below in detail with reference to the drawings.

〔Example〕

Fig. 1 is a sectional view showing a first embodiment of a collector boat of a pantograph of the invention, Fig. 2 is a sectional view showing a second embodiment of the invention, and Fig. 3 is a sectional view showing a third embodiment of the invention. This is a cross-sectional view, and the same reference numerals as in FIGS. 5 and 6 have the same configurations and functions.

In FIG. 1, a lubricant 11 mainly composed of graphite, molybdenum disulfide, etc. on the side in contact with the overhead wire is inclined in the transverse direction, and one side 11a of the lubricant 11 is 0.5 from the height h of the contact plate 2. mm lower, and the other 11b is formed at the same height as the other slider 2. The other height 11b may be slightly higher or lower than the height h of the slide plate 2, but as explained in the [Function] section, there is no problem in this regard.

In this way, the lubricant 1 formed as described above
1 attached to the collector boat 1,
As the vehicle travels, the collector boat 1 is rotated back and forth by the support 4 and comes into sliding contact with a pressing force of 5 to 6 kg/cm ² , and the slide plate 2 and lubricant 11 wear out. . The thickness of the slider plate 2 and the thickness of the lubricant 11 at this time are, for example, when the slider plate 2 is new.
10mm, and 9.5mm at the lowest part of the lubricant 11, so it is time to replace the contact plate 2 and lubricant 11.
This is done when the thickness of the layer reaches 2 to 3 mm.

In addition, in FIG. 2, the slope of the lubricant 12 in the transverse direction is shown on one side from the center portion 12a to the end portion 12b.
0.5 from the slip plate 2 at the end 12b.
mm, and the other is formed to have the same height as the slider plate 2 from the center portion 12a to the other end 12c.

Even in the pantograph constructed in this way, there is no need to perform finishing after assembly in the same way as described in FIG. 1, and there is no part that comes into sliding contact with the overhead wires, only with the slider plate.

Furthermore, in FIG. 3, the lubricant 13 is stepped from the center portion 13a and is 0.5 mm lower than the surface of the slider plate 6. Further, since the structure for preventing the lubricant 13 from flying out has been explained in FIG. 8, it will not be described here.

Even in a pantograph with such a configuration, the second
The same effect as shown in the figure can be obtained.

[Effect of idea]

As explained above, according to the present invention, unlike the conventional lubricants 3 and 5, there is no need to perform surface finishing after assembling the collector boat 1, and the lubricants 11, 12,
13 was able to be improved in terms of type, such as the sliding plates 2 and 6 always exhibiting their original effectiveness when sliding in contact with the overhead wire.

Therefore, the current collector device of the present invention is extremely useful in practice.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing a first embodiment of a collector boat of a pantograph of the invention, Fig. 2 is a sectional view showing a second embodiment of the invention, and Fig. 3 is a sectional view showing a third embodiment of the invention. 4 is a sectional view showing a conventional example similar to that shown in FIG. 7, FIG. 5 is a sectional view showing another conventional example similar to FIG. 8, and FIG. 6 is a collection of conventional pantographs. FIG. 7 is a sectional view taken along the line A--A in FIG. 6, and FIG. 8 is a sectional view showing another example similar to FIG. 7. 1... Current collector boat, 2, 6... Slide plate, 3, 5,
7, 8, 11, 12, 13...lubricating material, 4...supporting tool.

Claims (1)

[Scope of Claim for Utility Model Registration] (1) A collector boat device comprising a collector boat 1, sliders 2 and 6, and a lubricant 11, wherein the sliders 2 and 6 are attached to the collector boat 1. The lubricant 11 is arranged in two rows in the longitudinal direction at both ends of the upper surface with an interval, and the lubricant 11 is sandwiched between the slide plates 2, 2, 6, and 6 arranged in two rows on the upper surface of the collector boat 1. A current collector boat device in which a slope or a step is formed in the transverse direction of the contact line sliding contact side, and one end of which is lower than the upper surface of the slider plate 2. (2) The power collector boat device according to claim 1, wherein the lubricant 11 is sloped from the center toward the ends.