JPH10279971A - Solid lubricant for pantograph of electric car - Google Patents

Abstract

PROBLEM TO BE SOLVED: To accurately and readily determine the abrasion limit of a sliding plate installed in a pantograph of an electric car. SOLUTION: This white solid lubricant 5a for a pantograph of an electric car, having same surface as a sliding plate, and capable of imparting lubricating activities to both a sliding plate 3a and a trolley wire by sliding on the trolley wire has a groove part having nearly same depth as the abrasion limit size of the sliding plate formed in the back side and filled with a colored solid lubricant 6a so that the colored solid lubricant may be exposed to the sliding surface when the thickness of the sliding plate 3a reaches the abrasion limit.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pantograph sliding plate which is sandwiched and fixed between two rows of sliding plates for the purpose of reducing the wear of an electric vehicle pantograph sliding plate and a trolley wire, and sliding on the same plane as the sliding plate. It relates to a solid lubricant.

[0002]

2. Description of the Related Art There are two types of solid lubricants currently in use: waxes containing graphite or the like, which are black, and waxes containing fluorine-based resins, which are also white, which meet the needs of consumers. It is used properly according to.

[0003] These lubricants are worn at the same cycle while sliding on the same plane as the slider, and when the slider reaches the wear limit, the lubricant is replaced together with the slider. In the judgment of, the inspector periodically climbs the roof of the stopped electric car to measure the remaining thickness of the slider, and compares it with the wear limit (remaining thickness 4 to 5 mm), necessity of replacement. Have judged.

[0004]

The inspection work described above has problems in accuracy such as danger at a high place and variations in measured values due to individual differences of measurers, and urgent improvement measures are desired. I have.

In order to solve these problems, the present invention focuses on the fact that the solid lubricant wears simultaneously with the slide plate and the remaining thickness becomes the same. Instead, when the slider reaches a predetermined wear limit by devising the structure of the solid lubricant, a different phase appears in the hue of the surface of the solid lubricant, and it is possible to easily determine whether or not replacement is necessary by visual inspection. It was made.

[0006]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention relates to a method for extending a left and right sliding plate on a back surface of a currently used white solid lubricant while extending left and right with respect to the traveling direction of an electric vehicle. A groove portion approximately equal to the limit dimension is formed, and a colored solid lubricant or a similar colored filler is filled in the groove portion, and when the thickness of the grinding plate reaches the wear limit size, the colored solid lubricant or the colored solid lubricant is filled therein. A similar colored filler was exposed on the sliding surface so that the wear limit could be easily determined visually.

[0007] At present, the wear portion of the slide plate is the largest at the center of the boat body, the use limit is 2 mm for the remaining thickness of the thinnest portion, and the wear limit that is a guide for replacement is about twice the use limit. The remaining thickness is set to 4 to 5 mm with a safety factor of.
Therefore, if the depth of the groove provided on the back surface of the white solid lubricant is set to 4 to 5 mm and the portion is filled with the black solid lubricant, when the slide plate wears beyond 4 to 5 mm, it wears simultaneously. The top surface of the black solid lubricant is exposed in a band shape on the surface of the white solid lubricant, and the replacement time of the slide plate can be immediately known only by visual inspection without measuring the remaining thickness on the electric car roof Can greatly improve the remaining inspection work.

Since the lubricating action of the white and black solid lubricants is almost the same, the lubricating action does not change even if white and black coexist on the lubricant sliding surface. The same level as the current lubricant can be maintained.

In this case, the solid lubricant to be filled in the groove portion is not limited to black, and any other desired color tone can be used. When the filler is exposed, the filler is replaced assuming that the wear plate has reached the wear limit.Therefore, the filler is not necessarily required to have the same lubricating performance as the current solid lubricant. A filler having similar properties to the agent can be used. For example, a silicone rubber (a cemedine silicone sealant of Cemedine Co., Ltd.), which is a polymer having a siloxane bond in the main chain and having a substituent such as a methyl group, a phenyl group, or a vinyl group in a side chain, and a silicon-oxygen skeleton. A silicone resin having a three-dimensional structure as a polysiloxane has high flexibility, and is excellent in heat resistance, water resistance, and cold resistance, and can be sufficiently used as a colored filler similar to a colored solid lubricant. The silicone rubber and silicone resin described above are commercially available in various colors such as dark brown, ivory, and gray, as well as black. These are used as fillers similar to colored solid lubricants. can do.

Further, as a filler similar to the colored solid lubricant, a graphite solid can also be used.

It is desirable that the cross-sectional shape of the colored solid lubricant or similar filler contained in the white solid lubricant, in other words, the cross-sectional shape of the groove is trapezoidal or convexly curved. . In this way, even if the colored solid lubricant or a similar filler is exposed on the sliding surface of the white solid lubricant, it can be prevented from being detached upward, especially in the form of a convex curved surface. Then, the colored solid lubricant or similar filler exposed on the sliding surface of the white solid lubricant is initially linear, and its width gradually increases in accordance with the wear of the sliding plate. Can be determined more properly.

The length of the groove (the length of the filled colored solid lubricant) is such that the black solid lubricant is filled in such a size that the center part of the boat body where the wear of the slide plate becomes maximum can be identified. Therefore, it is not necessary to pass through the groove over the entire length of the white solid lubricant, and therefore, the mechanical strength of the main body of the white solid lubricant is sufficiently maintained.

Further, according to the present invention, the inspector does not need to measure the remaining thickness of the slider on the roof of the electric car, but also usually has the roof of the electric car along the length of the electric car. The need for replacement can be determined by simply observing the sliding surface of the white solid lubricant from the deck for the work passage that is built at a height of, and concerns about safety can be resolved. .

[0014]

Embodiments of the present invention will be described below with reference to the accompanying drawings. FIG. 1 is a perspective view showing an example of a pantograph equipped with a sliding plate and a solid lubricant, FIGS. 2A and 2B are cross-sectional views taken along line AA of FIG. 1, and FIG.
FIG. 4A is a cross-sectional view showing a case where the wear of the sliding plate and the white solid lubricant progresses, and the built-in black solid lubricant is exposed on the surface of the white solid lubricant to reach the wear limit; 5 is a plan view of a new product in which a white solid lubricant is filled with a black solid lubricant. In FIG. 4, both ends of the length of the built-in black solid lubricant are closed, and in FIG. 5, one end is closed. FIG. 4 is applied to a case where three rows of sliders are mounted in one row as shown in FIG. 6, and FIG. 5 is applied to a case where two rows of sliders are mounted as shown in FIG.

In these figures, 1 is a trolley wire, 2
A boat body that arranges and mounts a strip and a solid lubricant,
3a is a current sintered alloy slide, 4 is an aluminum auxiliary slide attached to both ends of the slide, 5a is a white solid lubricant having a groove on the back surface, and 5c is a white solid lubricant having no groove. 6a using three plates in one row for FIG.
Is a black solid lubricant for display filled on the back surface of the white solid lubricant. Reference numeral 3b denotes a sliding plate exceeding the wear limit, 5b denotes a white solid lubricant exceeding the wear limit, and 6b denotes a black solid lubricant for display exposed by wear. In addition, 6c is a case where three rows of slats are mounted in one row, and 6d is two rows of slabs in one row.
The following shows the shape of the black solid lubricant for display as viewed from the sliding surface side when this mounting is performed.

The groove size for filling the black solid lubricant has a depth of about 4 to 5 m, which is about 1/2 of the thickness of the white solid lubricant.
m, the width is 6 to 12 mm, and the length is about 160 in FIG.
5 and about 140 mm in 6d of FIG.
In the case of (A), the oblique angle is a trapezoid having an angle of 70 ° to 80 °. However, as shown in FIG.

If the exposed width is too narrow, the abrasion powder of the white solid lubricant is so strong that it is difficult to discriminate. If the width is 13 mm or more, the holding power of the white solid lubricant containing the black solid lubricant may be reduced. . If the length is longer than the above-mentioned dimension, the holding power of the white solid lubricant is affected, and if it is too short, the identification is hindered.

The black solid lubricant is processed into a predetermined groove size and filled in the white solid lubricant body. At this time, if a small amount of adhesive is applied around the black solid lubricant and filled, the bonding force increases. This facilitates integration with the white solid lubricant, which is convenient for preventing separation and handling.

[0019]

As described above, according to the present invention, the performance of the current solid lubricant and the external dimensions are not changed, and the accuracy of the determination of the wear limit of the slide plate is dramatically improved. Extremely effective results, such as ensuring safety and drastically shortening the inspection time, can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an example of a pantograph equipped with a slide plate and a solid lubricant.

FIG. 2 is a sectional view taken along the line AA of FIG. 1;

FIG. 3 is a sectional view showing a state in which a black solid lubricant contained in a white solid lubricant is exposed on a sliding surface.

FIG. 4 is a solid lubricant with a wear limit display in the case of three rows of sliding plates.

FIG. 5 is a solid lubricant with a wear limit display in the case of two rows of sliding plates.

FIG. 6 is a plan view showing the mounting state of the lubricant and the slide plate of FIG. 4;

FIG. 7 is a plan view showing the mounting state of the lubricant and the slide plate of FIG. 5;

[Description of Signs] 1 trolley wire 2 hull 3a sliding plate 3b sliding plate exceeding wear limit 4 auxiliary sliding plate 5a white solid lubrication with grooves on the back 5b White solid lubricant exceeding the wear limit 5c White solid lubricant without grooves on the back surface 6a Black solid lubricant for display filled on the back surface of the white solid lubricant 6b Due to wear Exposed black solid lubricant for display 6c Black solid lubricant for display when three rows of strips are attached in one row 6d Black solid lubricant for display when two rows of strips are mounted in one row

Continuing from the front page (72) Inventor Mori Kakami 1-4-1 Meieki Station, Nakamura-ku, Nagoya City, Aichi Prefecture Inside Tokai Passenger Railway Co., Ltd. (72) Inventor Kazuo Shichiri 1-1-1, Meieki Station, Nakamura-ku, Nagoya City, Aichi Prefecture No. 4 Inside the Tokai Railway Company

Claims (4)

[Claims] 1. An electric vehicle mounted on an electric car pantograph, fixed between two rows of sliding plates, and provided with a lubricating effect on both the sliding plate and the trolley wire while sliding on the trolley wire on the same plane as the sliding plate. In the electric vehicle pantograph white solid lubricant, on the back surface of the white solid lubricant, while extending in the left-right direction with respect to the traveling direction of the electric vehicle, forming a groove portion having a depth substantially equal to the wear limit dimension of the slide plate, The groove is filled with a colored solid lubricant or a colored filler similar thereto, and when the thickness of the slider reaches the wear limit, the colored solid lubricant or a similar colored filler is placed on the sliding surface. A solid lubricant for an electric vehicle pantograph, characterized in that the solid lubricant is exposed so as to determine the wear limit visually. 2. The cross-sectional shape of the groove portion may be trapezoidal or convexly curved, and the colored solid lubricant or a similar colored filler may be separated upward even when exposed to the sliding surface of the white solid lubricant. 2. The method according to claim 1, wherein
The solid lubricant for an electric vehicle pantograph according to 1. 3. The groove on the back surface of the white solid lubricant has a depth of about 1/2 of the thickness of the white solid lubricant, and a width of about 1/1/2 of the entire width.
4. The length is about 1/2 to 1/5 of the total length, and the longitudinal center of the colored solid lubricant or similar colored filler filled in the groove is the central part of the pantograph hull. The solid lubricant for an electric vehicle pantograph according to claim 1, wherein the solid lubricant is configured to be disposed so as to substantially match. 4. A colored filler similar to a colored solid lubricant, comprising a silicone rubber comprising a polymer having a siloxane bond in the main chain and having a substituent such as a methyl group, a phenyl group, or a vinyl group in a side chain, or The electric vehicle pantograph according to any one of claims 1 to 3, wherein the polysiloxane has a silicon-oxygen skeleton and is selected from a silicone resin having a three-dimensional structure or a graphite solid agent. For solid lubricants.