JPH04359604A - Collector shoe for pantograph - Google Patents

Abstract

PURPOSE:To simplify maintenance and to save material by preventing valley type shifted abrasion of collector shoe due to bent trolley at a curve. CONSTITUTION:Cross-sectional area, width or thickness of a sliding board mounted on a pantograph are set smaller at the opposite ends than at the central part thus preventing shifted abrasion. Furthermore, cross-section of only first main sliding board 2 may be made uniform or first and second main sliding boards 2, 3 may be integrated.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide plate for a pantograph device, and more particularly to a technique for wearing a slide plate in a desired shape.

0002

[Prior Art] As can be seen in Japanese Patent Publication No. 57-32562, Japanese Patent Publication No. 60-51323, Japanese Utility Model Publication No. 167302/1983, etc., the cross section of the slide plate of a conventional pantograph device is in the longitudinal direction (vehicle uniform in the width direction). Where the track curves, the overhead wire is installed in a broken line, so the wear of the slider plates is greater near the center, and wear decreases toward both sides. This is gentle valley-shaped wear. Replace the slide plate when it wears in a valley shape and the remaining amount in the central part, where the wear is greatest, reaches its limit. It would be wasteful to replace the entire length of the slider including both sides, where there is almost no wear, so we divided it into a first main slider in the center and a second main slider on both sides. An auxiliary slider is installed that has only a shape that mechanically guides the overhead wire, which has poor current collection performance and slides on extremely rare occasions. When viewed from the plan view, the joints of each slider board are joined diagonally to ensure smooth movement of the overhead wire. In this way, only the first main slider plate can be replaced at short intervals, and the second main sliders on both sides can be replaced at long intervals.

[0003] We will go into the special technique of replacement and maintenance of slider plates, but when the first main slider was replaced with a new one, the center of the second main sliders on both sides were also worn, so the joints should be removed. Continue partially using a grinder, etc. Therefore, the center side and the outer side of the second main slide plate may be replaced, and the second main slide plate, which has almost no wear, and the new first main slide plate are joined with the same height. It may be necessary to prevent overhead wires from getting caught at joints. The first of these conditions
Looking at the main slider and the second main slider, both sides of the second main slider are low and have a plateau-like shape that looks like an upside-down plate. At this time, a difference in level will occur between the second main slider and the auxiliary slider, but it can be made up by applying a grinder to make them continuous, or replaced with a thinner auxiliary slider. This is because the auxiliary slider is made of inexpensive material.

0004

According to the above-mentioned conventional technology, since the overhead wire is curved and has a broken line shape, the wear of the slider plate becomes uneven wear with a gentle valley shape that is large in the center. Therefore, the first main slider in the center and the second main slider on both sides
During short maintenance intervals, only the first main slide plate is replaced, and during longer maintenance intervals, the second main slide plate is also replaced. In either case, use a grinder to finish the slight difference in level between the new one and the outer slider (including the auxiliary slider), or use a grinder to finish the slight difference between the center and outer sides of the second main slider. It is necessary to replace the auxiliary sliding plate with a thinner one.

[0005] An object of the present invention is to provide a slide plate for a pantograph device that can prevent uneven wear of the slide plate in the form of troughs caused by the bending of the overhead wire due to curves in the track, and can simplify maintenance. It is about providing.

[0006]

[Means for Solving the Problems] The slider plate of the pantograph device according to the first aspect of the invention is such that the cross-sectional area of the slider plate, which is provided on the upper part of the pantograph and slides on the overhead wire, is smaller at both ends than at the center.

[0007] In the pantograph apparatus according to the second aspect of the invention, the width of the slide plate provided at the upper part of the pantograph and sliding on the overhead wire is smaller at both ends than at the center.

[0008] In the pantograph device according to the third aspect of the invention, the thickness of the slide plate provided at the upper part of the pantograph and sliding on the overhead wire is smaller at both ends than at the center.

[0009] The slide plate of the pantograph device according to the fourth aspect of the present invention is the slide plate of the pantograph device according to the first, second or third invention, wherein the slide plate is composed of a first main slide plate in the center and second main slide plates on both sides of the first main slide plate. The main slider plate 1 has a uniform cross-sectional shape.

[0010] The slide plate of the pantograph device according to the fifth aspect of the present invention is that in the first, second, third or fourth invention, the slide plate is composed of a main slide plate in the center and auxiliary slide plates on both sides of the main slide plate, and the auxiliary slide plates have a cross section. The shape is uniform.

[0011] In the pantograph device slider of invention 6, in the invention 1, 2 or 3, the slider is divided into a first main slider in the center, a second main slider on both sides thereof, and further auxiliary slides on both sides thereof. the first main slide plate and the second main slide plate.
The main slider is integrated with the main slider.

0012

[Operation] In invention 1, 2 or 3, the cross-sectional area of the slider plate,
As a result of the width or thickness being smaller at both ends than in the center, the valley-like uneven wear of the slider plate is canceled, and when the remaining amount of wear on the slider plate at any position reaches its limit, the slider plate will extend over its entire length (vehicle The wear condition is almost the same across the entire width (width direction).

[0013] In the invention 4 or 5, the first main slide plate 2
Alternatively, the cross-sectional shape of the auxiliary slider plate 4 can be made uniform to simplify the production of the slider plate.

[0014] In invention 6, since the wear condition of the slider plate is almost the same over the entire length, there is no need to separate the first main slider plate and the second slider plate, and they are integrated, making manufacturing and handling easier. become.

[0015]

1 is a half-sectional view of an embodiment, FIG. 2 is a plan view of FIG. 1, and FIG. 3 is a side view schematically showing an example of a pantograph device in which the device shown in FIG. 1 is used. In the figure, a pantograph 11 consisting of an upper frame 11a and a lower frame 11b is provided with a collector boat 13 attached to the upper part via a boat support shaft 14, and a slide plate (not shown) on the upper surface of the boat slides on the overhead wire. An arm 12 is fixed to the lower frame 11b, and the pantograph 11 is lowered when the cylinder 1, which is driven by air pressure from an air source, pushes the arm 12. When the pantograph 11 reaches the lowered position, the boat body support shaft 14 of the pantograph 11 comes to the position 14x, so the hook 15 engages with the boat body support shaft 14 by the force of the return spring 16 to hold the pantograph 11 in the lowered position. When raising the hook 15 with a solenoid (not shown)
When removed, the pantograph will rise due to a spring (not shown). The above is the conventional structure of a pantograph device.

In FIGS. 1 and 2, the upper surface of the boat body 6 provided on the collector boat 13 has a first main slide plate 2 in the center;
A pair of second main slide plates 3 are fixed on both sides thereof, and a pair of auxiliary slide plates 4 are further fixed on both sides thereof with bolts 5 or the like. The first and second main slide plates are made of iron or copper-based sintered alloy impregnated with oil. Following the auxiliary sliding plate 4, the horn 7 is connected to the hull 6.
It is fixed with rivets etc. There are two boat bodies 6 in the traveling direction of the vehicle, and they are connected by a connecting frame 8, a portion of which is shown. Each slider plate is joined diagonally in a plan view, and the overhead wire can be smoothly moved in the longitudinal direction of the slider plate with a curve or the like.

As a characteristic structure of the embodiment, the thickness and width of the first main slide plate 2 and the auxiliary slide plate 4 are H as shown in the figure.
2>H1 and W2>W1. and the second
The main slide plate 3 has a tapered shape in terms of thickness and width. The tapered portion does not necessarily cover the entire second slider plate 3, but may cover a portion thereof, or may extend over the first main slider plate 2 or the auxiliary slider plate 4. Only the thickness or only the width may be varied. It is also possible to integrate the first main slider 2 and the second main slider 3 into one piece.

According to this structure, the cross-sectional area, width, or thickness of the slider plate is made smaller at both ends than at the center, so that uneven wear in the valley shape of the slider plate is canceled, and the wear at any position is reduced. When the amount of remaining wear on the plate reaches its limit, the wear of the slider plate is almost the same over its entire length (in the width direction of the vehicle). By making the cross-sectional shape of the first main slider plate 2 or the auxiliary slider plate 4 uniform, manufacturing of the slider plate becomes easier, and since the wear condition of the slider plate is almost the same over the entire length, the first There is no need to separate the main slider plate and the second slider plate, and they are integrated, making manufacturing and handling easier.

[0019]

Effects of the Invention: The slider plate of the pantograph device according to the first, second or third aspect of the invention is such that the cross-sectional area, width or thickness of the slider plate, which is provided on the top of the pantograph and slides on the overhead wire, is smaller at both ends than at the center. It is something that As a result, it is possible to prevent the uneven wear of the contact strips in the form of troughs caused by the bending of overhead wires due to track curves, etc., and to simplify maintenance. It is possible to lengthen the interval between the wear condition and the wear limit, and when it is time for replacement, the whole thing can be done at once, which has the effect of not wasting material.

As in invention 4 or 5, the first main slider 2 can be manufactured easily by making the auxiliary slider have a uniform cross section, or as in invention 6, the main slider can be integrated to simplify manufacturing. It has the effect of being able to do things like

[Brief explanation of drawings]

[Figure 1] Half-sectional view of the example

[Figure 2] Plan view of Figure 1

FIG. 3 is a side view schematically showing a pantograph device as an example in which the device shown in FIG. 1 is used.

[Explanation of symbols]

2 First main slider 3 Second main slide plate 4 Auxiliary sliding plate 6 Boat hull

Claims (6)

[Claims] 1. A slider for a pantograph device, wherein the cross-sectional area of the slider, which is provided on the upper part of the pantograph and slides on the overhead wire, is smaller at both ends than at the center. 2. A slider for a pantograph device, wherein the slider is provided at the top of the pantograph and slides on the overhead wire, and the width of the slider is smaller at both ends than at the center. 3. A slider for a pantograph device, wherein the slider is provided at the top of the pantograph and slides on the overhead wire, and the thickness of the slider is smaller at both ends than at the center. 4. A slider for a pantograph device according to claim 1, wherein the slider is composed of a first main slider in the center and second main sliders on both sides thereof, A slide plate for a pantograph device, wherein the first main slide plate has a uniform cross-sectional shape. 5. A slider for a pantograph device according to claim 1, 2, 3, or 4, wherein the slider is composed of a main slider in the center and auxiliary sliders on both sides thereof, and the auxiliary slider is A slide plate for a pantograph device characterized by having a uniform cross-sectional shape. 6. The slider for a pantograph device according to claim 1, 2 or 3, wherein the slider includes a first main slider in the center, second main sliders on both sides thereof, and auxiliary sliders on both sides thereof. A slider for a pantograph device, characterized in that the first main slider and the second main slider are integrated.