JP2000144670A - Foreign matter removing device for track branch section - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a foreign matter removing device for a track branch section capable of being installed without applying a special process to the existing track branch section. SOLUTION: A piping unit 2 having a nozzle section 4 is provided on a side face facing the tongue rail 12 of a basic rail 11. The piping unit 2 is connected to an existing piping unit 2 via a feed passage L of compressed air. A fitting bolt B for screwing a rail stopper 14 is erected on the piping unit 2, and a feed passage L1 of compressed air is provided in the fitting bolt B.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for removing foreign matter from a track branch, and more particularly to an apparatus for removing foreign matter that has fallen between a basic rail and a tongue rail at a track branch in a snowfall area by air injection. About.

[0002]

2. Description of the Related Art Conventionally, various types of snow melting devices, such as an electric heating type, a hot air type and a hot water type, are installed at a track branching point of a railway in a snowfall area. These snow melting devices can melt so-called carry-in snow brought by the train due to snowfall and remove it from the track branching portion. However, for snow and ice that fell between the basic rail and the tong rail from the vehicle due to vibration when the vehicle passed through the track branch,
Since it is difficult to melt this in a short time, when the points need to be switched in a short time, the tong rail may not be converted. Further, when the ballast jumps and is caught between the basic rail and the tongue rail of the track branching portion due to the impact when snow and ice fall on the ballast, the snow melting device cannot cope with the above.

[0003] Therefore, a foreign matter removing apparatus has been put into practical use for removing foreign matter such as snow and ice or flying stones sandwiched between a basic rail and a tong rail by air jetting to remove the foreign matter (for example, Japanese Patent Application Laid-Open No. Hei 7 (1995)). -54317). In this foreign matter removing device, a compressed air source device for generating compressed air is installed near a track branch portion, and a supply passage of compressed air from the compressed air source device is provided on a side surface of the basic rail facing the tongue rail. A piping unit for supplying compressed air through the pipe unit was mounted, and nozzle portions for injecting compressed air supplied to the piping unit toward the tip end of the tong rail were provided at a plurality of locations along the longitudinal direction of the piping unit. The compressed air supply passage is provided so as to penetrate the web of the basic rail in the horizontal direction.

[0004]

The above-described foreign matter removing device for a track branching section is used when installing the same in an existing track branching section.
Since it is necessary to make a hole in the web of the basic rail so as to penetrate the compressed air supply passage, there is a problem that the installation work is troublesome. SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and has as its object to provide an apparatus for removing foreign matter in a track branching section that can be installed without performing special processing on an existing track branching section.

[0005]

According to a first aspect of the present invention, there is provided an apparatus for removing foreign matter at a track branching portion, comprising: a tongue rail which can be moved toward and away from a basic rail; Foreign matter that has fallen between the basic rail and the tongue rail at the track branching portion where a rail stopper that regulates the distance between the two rails is screwed to the opposing side surface with a mounting bolt that penetrates the basic rail in the horizontal direction. A piping unit provided on a side surface of the basic rail facing the tong rail, and installed near the track branching section and connected to the piping unit via a compressed air supply passage. Compressed air source device, and provided in the pipe unit in the longitudinal direction, the compressed air from the compressed air source device to the tip side of the tong rail And a plurality of nozzle portions for ejecting the compressed air, a mounting bolt for screwing the rail stopper is provided upright on the piping unit, and the compressed air supply passage is provided inside the mounting bolt. Features. According to the foreign matter removing device at the track branch portion, the piping unit can be fixed to the basic rail together with the rail stopper by the mounting bolts provided upright on the piping unit. Further, the compressed air from the compressed air source device can be supplied to the piping unit through a compressed air supply passage formed inside the mounting bolt. For this reason, it is not necessary to form a dedicated hole for allowing the compressed air supply passage to pass through the web of the basic rail.

In the foreign matter removing device, a fixing plate extending to a position further protruding than the tip of the tong rail is provided at an end of the piping unit on the tip side of the tong rail, and the tip of the fixing plate is attached to the basic rail. (See Claim 2). According to this foreign matter removing device, the piping unit can be firmly fixed to the basic rail by the mounting bolts and the clamps.

[0007] A plurality of the piping units may be individually provided corresponding to a plurality of rail stoppers provided along a basic rail. In this case, a sufficient amount of compressed air can be jetted from each nozzle by supplying compressed air individually to the plurality of piping units. Therefore, the foreign matter can be more reliably removed.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, an embodiment of a foreign matter removing device for a track branch portion according to the present invention will be described in detail. FIG. 1 is a plan view showing a track branch 1 in which a foreign matter removing device A for a track branch according to the present invention is installed. The track branching section 1 is provided with a pair of tong rails 12 between a pair of basic rails 11 installed at a predetermined interval. Each of the tong rails 12 is movable on a floor plate 13, and the tips 12 a of the tong rails 12 are connected at regular intervals by a switching rod 15. Each tong rail 12 can be alternately brought into contact with and separated from the basic rail 11 (open and closed) by switching with a point switching device (not shown).

The web 11a of the basic rail 11 (FIG. 4)
A rail stopper 14 for restricting a gap between the two rails 11 and 12 is fixed to a side surface facing the tongue rail 12 of FIG. In the case of the drawing, three rail stoppers 14 are provided at predetermined intervals along the longitudinal direction of the basic rail 11. Each rail stopper 14 is provided with a web 11a of the basic rail 11 on both sides of a chevron projection 14a.
14b which is bolted (screwed) to
(See FIGS. 2 and 6). The height of the protrusion 14a protruding from the web 11a is from the rear end side of the tongue rail 12 (right side in FIG. 1) to the front end 12a.
As a result, the protrusion 14a of each rail stopper 14 can abut on the side surface of the tongue rail 12 in a state where the tip 12a side of the tongue rail 12 is in contact with the basic rail 11.

The foreign matter removing device A is provided with a plurality of piping units 2 provided on a side surface of the basic rail 11 facing the tongue rail 12 and the vicinity of the track branching portion 1, and a compressed air supply passage L. Through the piping unit 2
And a plurality of nozzles 4 provided in each piping unit 2.

The piping unit 2 is provided for each rail stopper 14, and the piping unit 2 facing the tip 12a side of the tongue rail 12 has a pair of upper and lower parts, as shown in FIGS. Flat long rectangular pipe 21
It is constituted by. The front ends 21a of the pair of square pipes 21 are integrated so as to be in contact with each other, and a connection 21c to the basic rail 11 is formed for each of the square pipes 21 at the rear end 21b. The remaining two piping units 2 are each composed of a slightly flat short rectangular pipe 21, and a connecting portion 21 c for the basic rail 11 is formed on the rear end 21 b side of the rectangular pipe 21 (see FIG. 6). ).

A mounting bolt B for fixing the piping unit 2 to the basic rail 11 together with the rail stopper 14 is provided upright on a side surface of the connecting portion 21c facing the basic rail 11 (FIGS. 2 and 5). reference). The mounting bolt B has a hollow structure, and the inside thereof is configured as a supply passage L1 for supplying the compressed air from the compressed air source device 3 to the piping unit 2. The base end of each mounting bolt B is welded to the connecting portion 21c with the internal supply passage L1 communicating with the inside of the connecting portion 21c of the piping unit 2.

A connecting portion 21c of the piping unit 2 is attached to a flange portion 14b of the rail stopper 14,
In this state, the mounting bolt B is connected to the rail stopper 1.
4 and the web 11 of the basic rail 11
a through the bolt insertion holes 14c and 11c formed in the horizontal direction (see FIG. 5). A nut N is screwed into the insertion end of the mounting bolt B.
By tightening the holding member 5 with the nut N, the connecting portion 21c and the rail stopper 14 of the piping unit 2 are fixed to the web 11a of the basic rail.
Therefore, the piping unit 2 can be easily fixed to the basic rail 11 using the existing bolt insertion hole 11c for mounting the rail stopper 14. An auxiliary mounting plate 24 extending along the web 11a of the basic rail 11 is welded to the rear end 21b side of the short rectangular pipe 21. The auxiliary mounting plate 24 is a flange portion of the rail stopper 14. It is fixed to the web 11a of the basic rail 11 using the existing bolt B1 and nut N1 together with the side of the base 14b through which the mounting bolt B is not inserted (see FIG. 6). Further, the opening at the end 21a of the square pipe 21 is closed.

The square pipe 21 of the long piping unit 2
A fixing plate 23 for attaching the front end 21a to the basic rail 11 is welded to the front end 21a (see FIG. 2). The fixing plate 23 is provided on the web 11 of the basic rail 11.
a, which can be along the side of a.
Extends to a position further protruding than the tip 12a of the tongue rail 12, and the tip 23a
It is fixed to the basic rail 11 via a holding bracket 6 for holding the bottom flange 11b of the first base 11 (see FIG. 7). The holding member 6 has a base 61 along the bottom surface of the basic rail 11.
a, a stopper 61 having an upright portion 61b for bolting the fixing plate 23, and a holding member 62 for sandwiching one of the bottom flanges 11c of the basic rail 11 between the stopper 61 and the stopper 61. The fixing plate 23 is connected to the side surface of the web 11a of the basic rail 11 and the upright portion 61b of the holding member 6.
The fixing plate 23 can be fixed to the basic rail 11 in a state interposed therebetween. Since the tip 23a of the fixing plate 23 extends to a position further protruding than the tip 12a of the tongue rail 12, there is no possibility that the point switching operation is disturbed.

The nozzles 4 are provided at predetermined intervals along the longitudinal direction of the square pipe 21 in a state of being communicated with the inside of the square pipe 21. Further, the nozzle section 4 of the upper square pipe 21 and the nozzle section 4 of the lower square pipe 21 are provided so as to be displaced in the longitudinal direction of the square pipe 21. Each nozzle part 4 has a tong rail 1
Two air injection ports 41 and 42 for injecting compressed air toward the tip 12a of the base rail 2 are formed. (See FIGS. 2 and 8). However, for the nozzle portion 4 disposed in the short piping unit 2, the downward α is provided as needed.

The compressed air source device 3 has an air compressor 31, a compressed air reservoir 32, and ancillary devices thereof (see FIG. 9). It is connected to each piping unit 2. The electromagnetic switching valve 33 selectively connects the compressed air reservoir 32 to the piping unit 2 on the fixed position side and on the opposite side based on a predetermined electric signal. A compressed air supply passage L connecting the compressed air source device 3 and the pipe joint section 5 includes a plurality of branch passages L2.
To L5, and each of the branch passages L2 to L5 is individually connected to a mounting bolt B in which a compressed air supply passage L1 is formed. Therefore, compressed air can be individually supplied to each piping unit 2, and a sufficient amount of compressed air can be injected from each nozzle unit 4. Therefore, foreign substances can be more reliably removed.

The foreign matter removing device A having the above-described structure is operated by the electromagnetic switching valve 33 based on, for example, a signal from a foreign matter drop detection switch, a point switching signal, a signal from a snowfall sensor, and the like.
By switching compressed air, compressed air is supplied from the compressed air reservoir 32 to the piping unit 2 and compressed air is injected from the nozzle portion 4 for a predetermined period of time to blow off and remove foreign substances such as falling snow and ice and flying stones. Can be.

[0018]

As described above, according to the first aspect of the present invention, the compressed air supplied from the compressed air source device is supplied to the inside of the mounting bolt of the rail stopper. Since the foreign matter removing device can be supplied to the piping unit through the passage, the foreign matter removing device can be easily installed without performing special processing on the basic rail.

According to the second aspect of the present invention, since the fixing plate extending to the tip of the piping unit is fixed to the basic rail via the holding bracket for holding the bottom flange of the basic rail, Can be firmly fixed by a mounting bolt for fixing the rail stopper and a clamp.

According to the third aspect of the present invention, a sufficient amount of compressed air is injected from each nozzle by supplying compressed air individually to a plurality of piping units. Therefore, the foreign matter can be more reliably removed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view of a track branch to which a foreign matter removing device for a track branch according to the present invention is applied.

FIG. 2 is a cutaway plan view of a piping unit.

FIG. 3 is a side view of the piping unit.

FIG. 4 is a sectional view taken along line IV-IV of FIG. 2;

FIG. 5 is a sectional view taken along line VV of FIG. 3;

FIG. 6 is a cutaway plan view of a piping unit.

FIG. 7 is a sectional view taken along line VII-VII of FIG.

FIG. 8 is a side view showing a nozzle unit.

FIG. 9 is a schematic diagram showing a compressed air source device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Track branch part 11 Basic rail 11a Web 12 Tong rail 14 Rail stopper 2 Piping unit 23 Fixing plate 3 Compressed air source device 4 Nozzle part A Foreign matter removal device L Compressed air supply passage L1 Compressed air supply passage B Mounting bolt

Continuation of the front page (72) Inventor Manabu Tanaka 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company (72) Inventor Naoshige Narita 2-2-2 Yoyogi Shibuya-ku, Tokyo East Inside Japan Railway Company (72) Inventor Hideki Shindo 2-2-2 Yoyogi, Shibuya-ku, Tokyo East Japan Railway Company F-term (reference) 2D026 DA00

Claims (3)

[Claims] A rail stopper is provided on a side surface of the basic rail opposed to the tongue rail, the rail stopper restricting an interval between the two rails in a horizontal direction. A device for removing foreign matter that has fallen between the basic rail and the tongue rail of a track branch portion screwed by a penetrating mounting bolt, provided on a side surface of the basic rail facing the tongue rail. A piping unit, a compressed air source device installed near the track branching portion and connected to the piping unit via a compressed air supply passage, the compressed air source provided in the piping unit in a longitudinal direction, A plurality of nozzles for injecting compressed air from a device toward the tip side of the tong rail, and for screwing the rail stopper. A foreign matter removing device for a track branching part, wherein a mounting bolt is provided upright on the piping unit, and the compressed air supply passage is provided inside the mounting bolt. 2. A fixing plate extending to a position further protruding than a tip of the tongue rail is provided at an end of the piping unit on a tip side of the tongue rail, and a tip of the fixing plate is connected to a bottom flange of the basic rail. 2. The foreign matter removing device for a track branching portion according to claim 1, wherein the foreign matter removing device is fixed to the basic rail via a holding metal fitting. 3. The apparatus according to claim 1, wherein a plurality of the piping units are individually provided corresponding to a plurality of rail stoppers provided along a basic rail.