JP3256042B2 - Foreign matter removal device at track branch - Google Patents

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 at a track branching point which removes foreign matter which has fallen between a basic rail and a tongue rail at a railroad branching point in a railway in a snowfall area by air injection. is there.

[0002]

2. Description of the Related Art An electric heating type, a hot air type, a hot water type or the like is installed in a turnout of a railway track in a snowfall area. Electric heaters have heaters and heater panels installed between rails or sleepers to melt snow. In the hot air type, hot air generated by a hot air generator such as a boiler is blown out from a blowout port attached around a branch via a duct to melt snow. In the hot water type, hot water is sprinkled with a sprinkler to melt snow. These snow-melting devices exhibit a snow-melting effect against snowfall or snow brought in by bringing snow accumulated on a track portion by a snow plow attached to the leading end of a tracked vehicle.

[0003] However, falling snow and ice dropped by the vibration of the vehicle when passing through the track branch, or flying stones generated by the ballast jumping when the falling snow and ice fall on the ballast, are caused by the basic rails of the track branch. When it is sandwiched between the tongue rail and the tongue rail, the tongue rail is not converted. According to the snow melting device, in the case of falling snow and ice, it will melt if there is some time to spare,
If it is necessary to change points in a short time after passing the vehicle, it may cause a change. In addition, stepping stones cannot be melted and must be removed by some method. Since the tong rail is moved on the floor board on the sleeper and turns, if the stepping stone falls on the floor board between the basic rail and the tongue rail, it causes non-conversion. Conventionally, when such a situation occurs, an attendant rushes to the site to remove the situation.

[0004]

The switching between the basic rail and the tongue rail of the track branching portion is performed by switching, and a gap remains between the rail side faces, that is, the abdomen in a closed state. It is conceivable to provide a nozzle and blow off and remove foreign matter. However, since this gap is not very large, and because it is an open state that requires a blowing operation and requires a considerable amount of air, how to supply sufficient air to the air injection nozzle Is a problem. The present invention employs a configuration using an air injection nozzle, so that sufficient air can be supplied and foreign matter between the basic rail and the tongue rail is prevented so that the turnout device cannot be changed by falling snow and ice or flying stones. It is an object of the present invention to provide a foreign matter removing device capable of removing the foreign matter.

[0005]

According to the present invention, there is provided an apparatus for removing foreign matter at a track branching portion for removing foreign matter falling between a basic rail and a tongue rail of a track branching portion. A piping unit is attached only to the side of the basic rail facing the tongue rail according to the length of the branch track, and compressed air is generally injected into this piping unit at a plurality of locations at intervals in the longitudinal direction toward the tip of the tongue rail. Providing a nozzle portion to be installed, a pressure air source device is installed near the track branch portion, and an air supply passage from the pressure air source device is passed through the abdomen of the basic rail at a plurality of locations and connected to the piping unit. There is a feature. A plurality of mounting screws are erected on the mounting surface of the piping unit, each mounting screw is penetrated through the abdomen of the rail, tightened and fixed with a nut, and the air supply passage is provided through each mounting screw. Is good.

[0006]

When compressed air is sent from the pressure air source device to the piping unit side, the compressed air is jetted from each nozzle to generate an air flow between the basic rail and the tongue rail toward the tip of the tongue rail. Foreign matter between the basic rail and the tongue rail is blown off and removed by the flow. The supply of pressurized air to the piping unit is performed through air supply passages penetrating the basic rail at multiple locations,
There is no shortage of the supplied air amount, and a sufficient amount of air is injected to reliably remove the foreign matter at the track branching portion. When the air supply passage is provided through the inside of the mounting screw, it is not necessary to separately provide a through hole for the air supply passage in the basic rail.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described with reference to FIGS. The foreign matter removing device at the branch of the track includes piping units 1 and 2, nozzle units 3 and 4, an air source device 5, and an electromagnetic switching valve 6.
And so on. In the figure, 7 is a basic rail, and 8 is a tong rail.

As shown in FIGS. 3 (a) and 3 (b), the piping unit 1 has two ends 1 of a square pipe 10 having a slightly flat cross section.
1 and 12 are closed, and two nozzle connection ports 13 are drilled at appropriate intervals in the longitudinal direction on one wide surface of the square pipe 10, and at appropriate intervals in the longitudinal direction on the other wide surface of the square pipe 10. A plurality of mounting screws 14 having an inner hole 26 for the rail and also for the air supply passage, and in this embodiment, four mounting screws 14 are erected by welding, and the inner holes 26 are communicated with the square pipe 10. is there. In the figure, reference numeral 25 denotes a nut. As shown schematically in FIG. 2, the length of the piping unit 1 is a length substantially corresponding to the length of the portion where the tongue rail 8 is in close contact with the basic rail 7. The piping unit 2 forms a pair with the piping unit 1. When the piping unit 1 is mounted on one of the basic rails 7, the piping unit 2 is mounted on the other basic rail 7 and has the same shape. Is used upside down.

In this embodiment, nine nozzle portions 3 are provided in each of the piping units 1 and 2. FIG. 3 (a),
As shown in (b), the configuration at one location includes a convex nozzle member 15 attached to cover one of the nozzle connection ports 13 formed by drilling two pipe units 1 and the other nozzle connection port. 13 and a blind plate 16 attached so as to close it. The nozzle member 15 is provided with two air injection ports 17 and 18 as shown in the figure.
It has a downward angle α and a lateral angle θ with respect to the direction of the reference rail 7. In this embodiment, the downward angle α of the air injection port 17 is
1 = 7 °, lateral angle θ1 = 5 °, downward angle α1 = 7 ° of the air injection port 18, and lateral angle θ1 = 15 °. The nozzle member 15 and the blind plate 16 are arranged so that the upper and lower portions are alternately different in the longitudinal direction of the piping units 1 and 2. In the figure,
Reference numeral 19 denotes a nozzle mounting screw, and the nozzle member 15 and the blind plate 16 are mounted on the piping units 1 and 2 via a packing (not shown). The nozzle member 15 is symmetrical for the piping unit 1 and the piping unit 2. Air injection port 1 of nozzle member 15 attached to piping units 1 and 2
The approximate directions of 7 and 18 are slightly downward in the directions indicated by solid arrows and virtual arrows in FIG.

As shown in FIG. 5, the air source device 5 includes an air compressor 20, a compressed air reservoir 21, and ancillary devices thereof. It is connected to the piping unit 1 on the point localization side and the piping unit 2 on the opposite side via piping 23 and 24. The pipes 23 and 24 are each branched into four and connected to the inner hole 26 of the mounting screw 14. The electromagnetic switching valve 6 switches and connects the compressed air reservoir 21 to one of the piping units 1 and 2 by a predetermined electric signal.

FIG. 2 is a plan view of a track branching portion showing a schematic configuration provided with the foreign matter removing device of this embodiment. Piping 2
3 and 24 are buried in the ballast. Piping unit 1, 2
Are provided for the basic rails 7 on both sides (localization side and opposite side), respectively. The mounting state of the piping units 1 and 2 with respect to the rails is as shown in FIGS. 1A and 1B by taking the piping unit 1 as an example. That is, an insertion hole 27 for inserting the mounting screw 14 is formed in each abdomen 7a of the basic rail 7, and the nut 25 is inserted into the mounting screw 14 inserted therethrough.
Are screwed together and fixed, and the protruding end of the mounting screw 14 is connected to the four branched ends of the pipe 23.
The piping unit 1 and the nozzle part 3 are connected to the abdomen 7a of the basic rail 7.
And the abdomen 8a of the tongue rail 8 fits without any trouble. The state shown by the imaginary line in the figure is a state in which the tongue rail 8 is open, and the state is switched over to the position shown by the solid line by the point switching device and moves on the floor plate 9. The two tong rails 8 are connected at regular intervals by a switch rod (not shown) near their ends, and are driven and moved in that state. When one tong rail 8 is open, the other tong rail 8 is opened. 8 is closed.

[0012] The foreign matter removing device of the track branching portion of the embodiment configured as described above uses, for example, an electromagnetic device that uses a signal from a properly provided foreign matter drop detection switch, a point switching signal, a signal from a snowfall sensor, and the like. In response to the switching valve operation signal, the electromagnetic switching valve 6 is switched from the shut-off state, and compressed air from the compressed air reservoir 21 is supplied to the piping unit 1 or 2 on the side where the tongue rail 8 is separated from the basic rail 7, and the nozzle Inject air for several seconds (controlled by a timer) from the respective air outlets 17 or 18 of the part 3 or 4,
Foreign matter such as falling snow and ice and flying stones are blown off and removed.

When the foreign matter on the floor plate 9 is a flying stone, the size is small, and the purpose can be achieved by moving the foreign matter on the ballast. However, if the falling snow and ice are large, even if the snow and ice are moved to the ballast position, there is a possibility that the switching of points may become an obstacle. Therefore, it is more preferable to provide a flat plate between the sleepers 30. The installation state of the flat board is such that the upper surface of each sleeper 30 is connected by a flat surface, or the upper surface of the floor plate 9 is connected by a flat surface. When such a flat plate is provided, the ballast portion is covered and the upper surface becomes smooth, and foreign matter is easily moved by the blast air. Extruded.

As described above, foreign matters such as flying stones and falling snow and ice that have fallen between the basic rail and the tongue rail can be reliably removed. Also, this device has the advantage that it only requires drilling holes on the rail for mounting the piping unit and can be easily installed with almost no modification of the track, and there is almost no interference with existing snow melting equipment from its installed state. is there. And, in particular,
Since the supply of the compressed air to the piping unit is performed through the air supply passage penetrating the basic rail at a plurality of locations, a sufficient amount of air to be supplied for removing foreign matters is secured.

In the above-described embodiment, an example in which foreign matter is simply blown off and removed has been described. However, in some cases, a heating means for heating at a stage before air is blown out may be provided to blow hot air. In addition, the piping unit provided with the nozzle described above is used for hot water injection or hot air injection of the snow melting device, and is used for concentrated snow melting between the basic rail and the tongue rail which is the most important point where the point cannot be changed. You may.

[0016]

According to the present invention, since compressed air is used, high-pressure injection is possible, a sufficient amount of compressed air can be supplied, and snow and ice between the basic rail and the tongue rail can be reliably and instantaneously provided. In addition, since foreign matter such as flying stones can be removed, the problem that points cannot be changed due to foreign matter can be solved. Further, since the apparatus of the present invention uses compressed air, there is no possibility of freezing after the operation as in the water spray type snow melting apparatus. Further, when the air supply passage is provided through the inside of the mounting screw, the through hole for the air supply passage does not need to be separately provided in the basic rail, so that the strength of the basic rail is not unnecessarily reduced.

[Brief description of the drawings]

1 shows a main part of one embodiment of the present invention, (a) is an enlarged cross-sectional view taken along the line AA of FIG. 2, and (b) is a longitudinal section along a threaded member for mounting a piping unit and for supplying air. FIG.

FIG. 2 is a plan view of a track branching portion showing a schematic installation state of the embodiment.

3A and 3B show the piping unit 1 of the embodiment, wherein FIG. 3A is a partially omitted plan view and FIG. 3B is a partially omitted front view.

FIG. 4 is a schematic circuit diagram showing the air source device of the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Piping unit 2 Piping unit 3 Nozzle part 4 Nozzle part 5 Air source device 6 Solenoid switching valve 7 Basic rail 7a Abdomen of basic rail 8 Tong rail 8a Abdomen of tong rail 9 Floor plate 14 Mounting screw 20 Air compressor 21 Air reservoir 23 Piping 24 Piping 25 Nut 26 Inner hole 30 Sleeper

──────────────────────────────────────────────────続 き Continuation of the front page (72) Inventor Takashi Masuda 2-5-1706, Okaishi-cho, Akashi-shi, Hyogo (56) References JP-A-51-111731 (JP, A) 240605 (JP, A) Japanese Utility Model Showa 52-170411 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) E01H 8/00-8/12 E01B 19/00

Claims (2)

(57) [Claims] An apparatus for removing foreign matter that has fallen between a basic rail and a tongue rail of a track branching part, wherein the branch part track length is provided only on a side surface of the basic rail facing the tongue rail. A nozzle unit for injecting pressurized air toward the tip of the tongue rail is provided at a plurality of locations at intervals in the longitudinal direction, and a pressure air source is provided in the vicinity of the track branch portion. An apparatus for removing foreign matter at a track branching portion, wherein a device is installed, and an air supply passage from a pressure air source device is connected to the piping unit by penetrating the abdomen of the basic rail at a plurality of locations. 2. The foreign matter removing device for a track branching portion according to claim 1, wherein a plurality of mounting screws are erected on a mounting surface of the piping unit, and each of the mounting screws is passed through the abdomen of the rail and fastened with a nut. A foreign matter removing device for a track branch portion, wherein the air supply passage is provided so as to pass through the inside of each mounting screw.