JP5271617B2 - Foreign matter removal device for track branch - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foreign matter removing device in a track branched section capable of ensuring sufficient nozzle injection pressure in even the track branched section having difficulties for ensuring a space for installing an air supply device and a tank having the specifications required for ensuring sufficient nozzle injection pressure around the track branched section. <P>SOLUTION: In this foreign matter removing device, a first nozzle unit 14 is arranged in a front part of the track branched section 100, and a first subtank 13 supplies compressed air into the first nozzle unit 14 through a first nozzle pipe 19. A main tank 12 has larger capacity than that of the first subtank 13 and supplies compressed air into the first subtank 13 through a pipe 18 between tanks. The air supply device 11 supplies compressed air into the main tank 12. The first subtank 13 is arranged close to the track branched section 100, and the main tank 12 and the air supply device 11 are arranged at positions being remote from the track branched section 100. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention is provided in a track branching portion having a basic rail and a tongrail which can be brought into contact with and separated from the basic rail, and removes foreign matter dropped between the rails by injecting compressed air. The present invention relates to a foreign matter removing device for a track branching portion.

  Conventionally, in snowfall regions, snow melting devices such as electric heating type, hot air type, and hot water type have been used at railway track branches. However, according to such a snow melting device, it is difficult to melt the falling snow ice that is dropped by the vibration when the vehicle passes the track bifurcation in a short time. ) It is not possible to remove stepping stones due to impact when dropped on top. In view of this, there has been proposed a foreign matter removing apparatus that removes foreign matter that has fallen between the basic rail and the tongrel at the track branching portion by injecting compressed air (see Patent Literature 1 to Patent Literature 6).

  Patent Documents 1 to 6 each disclose a foreign substance removing device in which an air source device that supplies compressed air is connected to a piping unit provided with a nozzle via a predetermined piping. And in patent document 1 thru | or patent document 6, the structure by which the air source device is arrange | positioned in the area | region of the vicinity of a track branch part is disclosed.

Japanese Patent Laid-Open No. 6-240605 (page 3, FIG. 3) JP-A-7-54317 (page 3, FIG. 2) JP 2000-144602 A (3rd page, FIG. 1) JP 2000-144670 A (page 3, FIG. 1) JP-A-7-54318 (page 3, FIG. 2) JP 2001-131935 A (page 3-4, FIG. 2)

  In any of the foreign substance removing devices disclosed in Patent Document 1 to Patent Document 6 described above, compressed air is supplied to the nozzle from the tank in the air source device arranged in the vicinity of the track branching portion via the pipe. It is configured. In this way, by supplying compressed air to the nozzle from the vicinity of the orbital branching portion, a drop in the injection pressure at the nozzle due to an increase in pressure loss due to a long pipe for supplying air is suppressed. be able to. However, in order to suppress a decrease in nozzle injection pressure due to an increase in pressure loss due to an increase in pipe length, an air source device and a tank for storing compressed air are arranged near the track branch portion as described above. It is necessary to secure the space around the track branching portion. Therefore, in the track branching section where a large specification air source device and tank that can secure the nozzle injection pressure required in each track branching section where the foreign substance removing device is installed cannot be secured. On the other hand, there is a problem that it is difficult to install a foreign matter removing apparatus that secures a nozzle injection pressure that exhibits the required foreign matter removing ability.

  In particular, in order to achieve the nozzle injection pressure that demonstrates the required foreign substance removal capability, such as in the track branching section placed on an elevated track that extends over a position higher than the ground, such as the Shinkansen track structure, etc. It is difficult to secure a space for installing a large-sized air source device or tank with sufficient specifications. In the case of the Shinkansen track structure, the track branching portion is a large structure extending long in the track direction, so the length of the pipe from the air source device and the tank to the nozzle becomes long, and a pressure drop is likely to occur. There is a problem that it becomes more difficult to ensure a sufficient nozzle injection pressure.

  In view of the above circumstances, the present invention is a track branch portion in which it is difficult to secure a space for installing an air source device and a tank having specifications necessary for securing nozzle injection pressure around the track branch portion. Another object of the present invention is to provide a foreign matter removing device for a track branching portion that can ensure a sufficient nozzle injection pressure.

  A foreign matter removing device for a track branching portion according to the first invention for achieving the above object is provided for a track branching portion having a basic rail and a tongrail that can contact and separate from the basic rail. A foreign matter removing device for a track branching section that removes foreign matter dropped between the rails by jetting compressed air, wherein the basic rail and the tongrel can be brought into contact with each other at the track branching portion. 1st nozzle unit which is arranged in the front part located in the front side, and injects compressed air, The 1st nozzle pipe connected to the 1st nozzle unit, The 1st nozzle unit while connecting to the 1st nozzle pipe A first sub tank that supplies compressed air to the tank and a tank having a larger capacity than the first sub tank, and is connected to the first sub tank via an inter-tank pipe A main tank that supplies compressed air to the first subtank, and an air source device that supplies compressed air to the main tank, and the first subtank is disposed in the vicinity of the orbital branch portion, The main tank and the air source device are disposed far away.

According to the present invention, the compressed air supplied from the air source device is jetted from the first nozzle unit through the main tank and the first sub tank at the front portion of the track branching portion. For this reason, sufficient foreign matter removal capability is exhibited by the small-capacity first subtank with a capacity sufficient to secure a predetermined injection amount at least once at the nozzle injection pressure required in the first nozzle unit. Can do. And even if compressed air is injected from a 1st nozzle unit, compressed air can be immediately supplied to a 1st subtank from a main tank of larger capacity than a 1st subtank, and it can prepare for the injection after the next. Further, since the small first sub-tank is located in the vicinity of the track branching portion, and the large main tank and the air source device are disposed far away from each other, even if the installation space is narrow, the track branching portion is also limited. Therefore, it is possible to configure a foreign matter removing apparatus including a compressed air supply system that can secure a sufficient nozzle injection pressure without arranging a large tank or an air source device in the vicinity of the unit.
Therefore, according to the present invention, even in the vicinity of the track branching section, even if the track branching section is difficult to secure the space for installing the air source device and the tank having the specifications necessary for securing the nozzle injection pressure, sufficient It is possible to provide a foreign matter removing device for a track branching portion that can ensure nozzle injection pressure.

  The foreign matter removing apparatus for a track branching portion according to a second aspect of the present invention is the foreign matter removing device for a track branching portion of the first aspect of the invention, with respect to the track branching portion disposed in an elevated track spanned higher than the ground. The main tank and the air source device are disposed below the elevated track, and the first sub tank is disposed at a central portion of the elevated track in a direction perpendicular to the track direction. It is characterized by.

  According to the present invention, in the track branch portion arranged in the elevated track, the large main tank and the air source device are arranged below the elevated track where it is easy to ensure sufficient space, and the elevated type in the vicinity of the track branch portion. A small first sub-tank is arranged by utilizing a narrow area in the central portion of the track. For this reason, in the track branching section of an elevated track where it is difficult to secure a space for installing a large-sized air source device or tank with sufficient specifications to achieve the nozzle injection pressure that exhibits the required foreign substance removal capability In addition, it is possible to provide a foreign matter removing device for the track branching portion that can ensure a sufficient nozzle injection pressure.

  The foreign matter removing apparatus for a track branching portion according to a third aspect of the present invention is the foreign matter removing device for a track branching portion of the first aspect of the invention, with respect to the track branching portion arranged in an elevated track spanned to a position higher than the ground. The main tank and the air source device are provided below the elevated track, and the first sub tank is installed at an end of the elevated track in a direction perpendicular to the track direction. It is arranged below the passage.

  According to the present invention, in the track branch portion arranged in the elevated track, the large main tank and the air source device are arranged below the elevated track where it is easy to ensure sufficient space, and the elevated type in the vicinity of the track branch portion. A small first sub-tank is arranged utilizing a narrow area below the inspection passage at the end of the track. For this reason, it is difficult to secure a space for installing a large-sized air source device or a tank with sufficient specifications to achieve the nozzle injection pressure that exhibits the required foreign substance removal capability in the area near the track branching portion. It is possible to provide a foreign matter removing device for a track branch portion that can ensure a sufficient nozzle injection pressure even in the track branch portion of the elevated track.

  According to a fourth aspect of the present invention, there is provided a foreign matter removing apparatus for a track branching portion according to any one of the first to third inventions, wherein the first nozzle pipe is provided in plurality, and the first sub tank is A plurality of first nozzle pipes are provided so as to be connected in correspondence with each of the plurality of first nozzle pipes.

  According to this invention, a plurality of first nozzle pipes and first subtanks are provided, and each first subtank is provided corresponding to each first nozzle pipe. For this reason, even if it is a large-sized track branch part extended long in a track direction, each 1st nozzle arranged along a track direction long is arranged by arranging the 1st nozzle piping and the 1st sub tank along a track direction. The structure which can ensure sufficient nozzle injection pressure in a unit is realizable.

  The foreign matter removing apparatus for a track branching portion according to a fifth aspect of the present invention is the foreign matter removing apparatus for a track branching portion according to the fourth aspect of the invention, wherein the plurality of first sub-tanks are connected to the plurality of first nozzle pipes arranged along the track. It is arranged along.

  According to this invention, each 1st subtank is arrange | positioned along each 1st nozzle piping arrange | positioned along a track | orbit. For this reason, each 1st subtank which each 1st nozzle piping connects can be arrange | positioned so that it may approach a track | orbit branch part along a track | orbit, and the 1st nozzle which connects a 1st nozzle unit and a 1st subtank The structure which shortens the piping length of piping can be made easy to implement | achieve. Thereby, the pressure loss in the first nozzle pipe can be further suppressed, and a configuration that can easily secure the nozzle injection pressure can be realized.

  A foreign matter removing device for a track branching portion according to a sixth aspect of the present invention is the foreign matter removing device for a track branching portion according to any one of the first to fifth inventions, wherein the rail is on the rear side opposite to the front side of the track branching portion. Is disposed in the crossing section where the two intersect, and a second nozzle unit for injecting compressed air, a second nozzle pipe connected to the second nozzle unit, a second nozzle pipe connected to the second nozzle unit, and compressed to the second nozzle unit A second sub-tank for supplying air, wherein the main tank is provided as a tank having a larger capacity than the second sub-tank, and is connected to the second sub-tank via an inter-tank pipe and the second sub-tank. Compressed air is supplied to the track branching portion, the second sub tank is disposed in the vicinity, and the main tank and the air source device are distant from each other. Characterized in that it is arranged.

  According to the present invention, the compressed air supplied from the air source device is injected from the second nozzle unit through the main tank and the second sub tank in the crossing portion on the rear side of the track branching portion. For this reason, the air source device and the main tank for supplying the compressed air to the first nozzle unit in the front portion can be used in common in the crossing portion. And since compressed air is supplied through a small 2nd subtank, sufficient nozzle injection pressure can be ensured in a 2nd nozzle unit also in the crossing part with a small installation space. Accordingly, the compressed air is efficiently supplied from the common air source device and the main tank to the first and second nozzle units disposed in the front portion and the crossing portion, which are located in a small space in the orbit direction. And a sufficient nozzle injection pressure can be secured.

  According to the present invention, sufficient nozzle injection is possible even in a track branch portion where it is difficult to secure a space for installing an air source device and a tank having specifications necessary for securing nozzle injection pressure around the track branch portion. It is possible to provide a foreign matter removing device for a track branching portion that can ensure pressure.

  Hereinafter, embodiments for carrying out the present invention will be described with reference to the drawings. In addition, the foreign material removal apparatus of the track branch part which concerns on embodiment of this invention is provided in the track branch part, and the foreign material of the track branch part which removes the foreign material which fell between the rails by injecting compressed air It can be widely applied as a removing device.

(Configuration of orbit branching part)
FIG. 1 schematically shows a foreign matter removing device 1 (hereinafter simply referred to as “foreign matter removing device 1”) for a track branching portion and an orbital branching portion 100 provided with the foreign matter removing device 1 according to an embodiment of the present invention. FIG. The track branching section 100 shown in FIG. 1 is arranged in an elevated track that is stretched over a position higher than the ground. FIG. 2 is a diagram schematically showing a cross section perpendicular to the track direction (direction in which the rail extends) of the elevated track 101 on which the track branching portion 100 is arranged. A cross-section at the position is shown.

  As shown in FIG. 2, the elevated track 101 is provided as a track structure for a Shinkansen, for example, and includes an upper structure 101a and a lower structure 101b. The upper structure 101a is installed at a position higher than the ground, and is configured to be provided with tracks (structures such as rails, sleepers, and roadbeds disposed on the roadbed). The lower structure 101b is installed as a leg structure that extends upward from the ground and supports the upper structure 101a upward. In this elevated track 101, a vehicle 103 indicated by a two-dot chain line passes on a rail 102 of the track provided in the upper structure 101a. Further, in the elevated track 101, an inspection passage 104 through which an operator passes for inspection of the track is disposed at an end portion in a direction perpendicular to the track direction. In FIG. 1, the orbital region in the upper structure 101a and the underpass region on the ground are shown separated by a two-dot chain line boundary, and the orbital region is defined as an area indicated by an arrow D with respect to the two-dot chain line. The lower regions are shown as regions indicated by arrows E with respect to the two-dot chain line.

  As shown in FIG. 1, in the track branching section 100, a pair of basic rails 105, 105, a pair of tonglers 106, 106, a lead rail 107, a pair of wing rails 108, 108, a movable rail 109, A main rail 110, a switch 111 (shown by a two-dot chain line in FIG. 3), and the like are installed. FIG. 3 is a plan view showing a region in the vicinity of the pair of basic rails 105 and 105 and the pair of tongrels 106 and 106 in the track branching section 100.

  As shown in FIG. 1 and FIG. 3, the pair of basic rails 105, 105 are arranged in a state of being spaced apart by a predetermined interval, and a pair of tonglers 106, 106 are interposed between the pair of basic rails 105, 105. It is arranged. Further, as shown in FIG. 3, the basic rail 105 and the tongrel 106 are disposed on the sleeper via a floor plate or a bearing floor plate, and the tongrel 106 is configured to be movable by the bearing floor plate. As a result, each of the tongrels 106 is provided so as to be able to contact and separate from each basic rail 105.

  Here, the side where the basic rail 105 and the Tongler 106 can come into contact with each other in the track branch portion 100 is defined as the front side, and the opposite side of the track branch portion 100 is defined as the rear side. In FIG. 1, the forward direction in the track branching portion 100 is indicated by an arrow A, and the backward direction is indicated by an arrow B. Usually, a vehicle that has entered the track branching section 100 from the front side is defined in the traveling direction by the track branching section 100 and travels to the rear side of the track branching section 100.

  Further, as shown in FIG. 1, the track branching unit 100 can be grasped by dividing it into each region (point portion P, lead portion L, crossing portion C) divided by broken lines in the track direction. The point portion P is configured as a region including a portion where the basic rail 105 and the tongrel 106 abut on the front side of the track branching portion 100. The crossing portion C is configured as a region including a portion where the rails intersect on the rear side of the track branching portion 100. The lead portion L is configured as a region of a portion connecting the point portion P and the crossing portion C between the point portion P and the crossing portion C. Among these regions, the point portion P and the lead portion L constitute the front portion of the present embodiment located on the front side in the track branching portion 100. A lead rail 107 is disposed in the lead portion L, and a wing rail 108 and a movable rail 109 are disposed in the crossing portion C.

  In the track branching section 100, as shown in FIG. 3, the front end portions of the respective Tongrels 106 are connected to each other with a constant interval maintained by a rolling bar 111a provided in the rolling mill 111. Then, when the switch 111 is operated based on a command from a control device (not shown), the tongue rail 106 moves in a direction in which the basic rail 105 comes into contact with or separates from the basic rail 105, and the traveling rail switching operation in the track branching unit 100 is performed. (Point switching operation) is performed. Further, at this time, the movable rail 109 of the crossing section C shown in FIG. 1 is configured to be displaced in conjunction with the tongler 106 with the operation of the rolling mill 111 so as to swing with the fixed section 112 as a fulcrum structure. It is configured to be displaced so that its front end comes into contact with or separates from the blade rail 108.

(Structure of foreign matter removal device)
Next, the configuration of the foreign matter removing apparatus 1 according to this embodiment will be described. The foreign matter removing apparatus 1 is provided in the track branching portion 100 described above, and is installed to remove foreign matters such as snow and stepping stones that have fallen between the rails by jetting compressed air. As shown in FIGS. 1 to 3, the foreign matter removing apparatus 1 includes an air source device 11, a main tank 12, a first sub tank 13, a first nozzle unit 14, a second sub tank 15, a second nozzle unit 16, and an air pipe 17. The inter-tank pipe 18, the first nozzle pipe 19, the second nozzle pipe 20 and the like are provided.

  As shown in FIGS. 1 and 2, the air source device 11 and the main tank 12 are disposed on the ground, which is a region below the elevated track 101. On the other hand, the first sub-tank 13 and the second sub-tank 15 are disposed on the upper structure 101a provided with the track branching portion 100 in the elevated track 101, and are disposed in the central portion in the direction perpendicular to the track direction. With these arrangement configurations, the first sub tank 13 and the second sub tank 15 are arranged in the vicinity of the track branching section 100, and the air source device 11 and the main tank 12 are arranged in the distance. The first nozzle unit 14 includes a branch line side where the basic rail 105 is gently curved from the middle and an opposite side in a region between the basic rail 105 and the tongue rail 106 in the front part of the track branching unit 100. The basic rails 105 are respectively disposed on the reference line side extending straight. Further, the second nozzle unit 16 is disposed in a region between the pair of blade rails 108 in the crossing portion C.

  The air source device 11 shown in FIGS. 1 and 2 is configured as a compressor, and is provided as a compressed air supply source that supplies compressed air to the main tank 12. The air source device 11 and the main tank 12 are connected via an air pipe 17, and the compressed air generated by the air source device 11 is supplied to the main tank 12 via the air pipe 17 and stored. . As described above, the air source device 11 is arranged on the ground and can easily perform maintenance work on the ground.

  As shown in FIGS. 1 and 2, the main tank 12 is provided as a large tank having a larger capacity than the first sub tank 13 and the second sub tank 15. For example, if the foreign substance removing apparatus 1 is applied to a Shinkansen track structure, the capacity of the first sub tank 13 may be set to about 120 liters, and the capacity of the main tank 12 may be set to about 2,000 liters. The main tank 12 is connected to the first sub-tank 13 and the second sub-tank 15 via an inter-tank pipe 18 having a pipe structure that branches from the middle. Accordingly, the main tank 12 is configured to supply compressed air to the first sub tank 13 and the second sub tank 15. As shown in FIG. 2, the inter-tank pipe 18 is laid so as to extend upward from the ground along the lower structure 101b, and connects the main tank 18 to the first tank 13 and the second tank 15. ing.

  As shown in FIGS. 1 to 3, a plurality of first sub-tanks 13 are provided, and the plurality of first sub-tanks 13 are arranged in series along a track. An inter-tank pipe 18 branches from each first sub tank 13 and is connected from the main tank 12. The first sub tank 13 is connected to a first nozzle pipe 19 and is provided as a tank for supplying compressed air to the first nozzle unit 14 via the first nozzle pipe 19. In addition, the capacity | capacitance (for example, about 120 liters mentioned above) of the 1st sub tank 13 only ensures a predetermined injection amount at least once with the nozzle injection pressure requested | required from a viewpoint of the foreign material removal capability in the 1st nozzle unit 14. Is set to ensure the capacity of

  As shown in FIGS. 1 and 3, the first nozzle pipe 19 is provided as a pipe connecting the first nozzle unit 14 and the first sub tank 13, and the first nozzle pipe 19 is provided on the upstream side where the compressed air flows. The sub-tank 13 is connected to the sub-tank 13 and is branched downstream to connect the first nozzle unit 14 on the reference line side and the first nozzle unit 14 on the branch line side. A plurality of first nozzle pipes 19 are provided, and the first sub-tank 13 is connected to each of the plurality of first nozzle pipes 19. As shown in FIGS. 1 and 3, the plurality of first nozzle pipes 19 are arranged along the track, and the plurality of first sub tanks 13 are arranged along the plurality of first nozzle pipes 19. ing.

  Further, the first nozzle pipe 19 is provided with an electromagnetic switching valve 21 in the middle thereof, and the operation of the electromagnetic switching valve 21 is switched based on a command from a control device (not shown). For this reason, the first nozzle pipe 19 is switched between the communication state and the cutoff state by the electromagnetic switching valve 21. Thereby, supply of the compressed air to the 1st nozzle unit 14 via the 1st nozzle piping 19 is controlled, and it is comprised so that the injection operation of the compressed air injected from the 1st nozzle unit 14 may be controlled. . The electromagnetic switching valve 21 is provided corresponding to each of the first nozzle unit 14 on the reference line side and the first nozzle unit 14 on the branch line side.

  As shown in FIGS. 1 and 3, the first nozzle unit 14 for injecting compressed air is disposed in the front part of the track branching part 100, and the basic rail 105 and the tongrel 106 are respectively provided on the reference line side and the branch line side. Are arranged along the trajectory in a region between the two. 4 is a cross-sectional view taken along line FF in FIG. In FIG. 4, the first nozzle pipe 19 is shown as a partial cross-sectional view, and the state where the tongue rail 106 is in contact with the basic rail 105 is also indicated by a two-dot chain line. As shown in FIG. 4, the first nozzle unit 14 is disposed at a position where it does not interfere with the Tongrel 106, and includes a nozzle header 22, a communication member 23, a mounting member 24, an upper nozzle 25, a lower nozzle 26, and the like. It is prepared for.

  A communication member 23 formed as a hollow cylindrical member is connected to the opening end portion of the first nozzle pipe 19, and a nozzle header 22 is further connected and attached to the communication member 23. The communication member 23 is arranged so that the tip side thereof penetrates a through hole 105a formed through the basic rail 105, and is fixedly attached to the basic rail 105 via an attachment member 24 attached to the periphery thereof. ing.

  The nozzle header 22 is formed in an elongated rectangular parallelepiped tubular shape that is closed at both ends and hollow inside, and the hollow inside communicates with the first nozzle pipe 19 via the communication member 23. The nozzle header 22 is fixed along the side portion of the basic rail 105 via the communication member 23. A plurality of upper nozzles 25 and lower nozzles 26 arranged in series along the longitudinal direction of the nozzle header 22 are provided above and below the nozzle header 22. For this reason, a plurality of upper nozzles 25 and lower nozzles 26 are arranged along the basic rail 105. Each upper nozzle 25 has an opening formed toward the front side, and a nozzle hole formed so as to be inclined slightly toward the Tongrel 106 side and slightly inclined upward. Yes. As a result, the foreign matter falling between the basic rail 105 and the tongrel 106 can be efficiently blown away to the upper front side and removed. On the other hand, each lower nozzle 26 is formed with an opening formed toward the front side and a nozzle hole formed so as to be inclined slightly toward the Tongrel 106 side and slightly inclined downward. Yes. Thereby, it is configured such that the foreign matter dropped between the basic rail 105 and the tongrel 106 can be efficiently blown off and removed so as to bounce off the track surface toward the front side.

  FIG. 5 is a plan view showing the blade rail 108 in the crossing portion C of the track branching portion 100 and a region in the vicinity thereof. As shown in FIGS. 1 and 5, the second sub tank 15 is connected to the main tank 12 via the inter-tank pipe 18 on the upstream side where the compressed air flows, and connected to the second nozzle pipe 20 on the downstream side. doing. Thus, the second sub tank 15 is provided as a tank that supplies compressed air to the second nozzle unit 16 via the second nozzle pipe 20. The capacity of the first sub-tank 13 is set so that the second nozzle unit 16 has a capacity sufficient to secure a predetermined injection amount at least once at the nozzle injection pressure required from the viewpoint of foreign substance removal capability. Has been.

  6 shows an enlarged view (FIG. 6 (a)) showing an enlarged area surrounded by a broken line G in FIG. 5, and a cross-sectional view taken along the line HH in FIG. 5 (FIG. 6 (b)). It is a thing. As shown in FIGS. 1, 5 and 6, the second nozzle pipe 20 is provided as a pipe connecting the second nozzle unit 16 and the second sub tank 15. The tip side of the second nozzle pipe 20 connected to the second nozzle unit 16 is disposed so as to extend between the pair of blade rails 108. Further, the second nozzle pipe 20 is provided with an electromagnetic switching valve 27 in the middle thereof, and the operation of the electromagnetic switching valve 27 is switched based on a command from a control device (not shown). For this reason, the second nozzle pipe 20 is switched to either the communication state or the cutoff state by the electromagnetic switching valve 27. Thereby, supply of the compressed air to the 2nd nozzle unit 16 via the 2nd nozzle piping 20 is controlled, and it is comprised so that the injection operation of the compressed air injected from the 2nd nozzle unit 16 may be controlled. .

  As shown in FIGS. 1, 5, and 6, the second nozzle unit 16 that injects compressed air is disposed in the crossing portion C in the track branching portion 100, and in the crossing portion C, between the pair of blade rails 108. Is arranged. The second nozzle unit 16 is formed as a hollow cylindrical member, and is connected to the tip of the second nozzle pipe 20 at one end of the cylindrical shape. On the other hand, the other cylindrical end of the second nozzle unit 16 is disposed toward the rear side so as to face the front end of the movable rail 109 between the blade rails 108. A plate-like lid member 28 is attached to the other end side of the second nozzle unit 16. A plurality of large-diameter nozzle holes 29 and small-diameter nozzle holes 30 are formed in the lid member 28, and the small-diameter nozzle holes 30 are formed so as to be arranged around the large-diameter nozzle hole 29. The large-diameter nozzle hole 29 and the small-diameter nozzle hole 30 are formed so as to inject compressed air to the rear side toward the tip of the movable rail 109 between the blade rails 108. As a result, the foreign matter dropped between the wing rail 108 and the movable rail 109 can be removed by blowing away toward the rear side of the track branching portion 100.

(Operation of foreign matter removal device)
In the foreign matter removing apparatus 1 described above, compressed air is generated by the air source apparatus 11 and supplied to the main tank 12 via the air pipe 17 and stored. Further, compressed air is supplied from the main tank 12 to the first sub tank 13 and the second sub tank 15 via the inter-tank pipe 18 and stored. At this time, in the first sub-tank 13 and the second sub-tank 15, compressed air having substantially the same pressure as the compressed air stored in the main tank 12 is stored. In the first sub tank 13 and the second sub tank 15, as described above, the first nozzle unit 14 and the second nozzle unit 16 have a predetermined injection amount at the nozzle injection pressure required from the viewpoint of the foreign matter removal capability. A volume of compressed air sufficient to ensure at least one time is stored.

  In the state described above, a control device (not shown) detects detection results of various sensors such as a foreign matter fall detection sensor (not shown) and a snowfall sensor (not shown), or an operation signal (point of the turning machine 111). The switching operation of the electromagnetic switching valve 21 and the electromagnetic switching valve 27 is issued on the basis of operation command signals of various devices such as the switching signal), and the foreign matter removal operation is performed. Further, in accordance with the point switching signal, the front end portion of the Tongle rail 106 contacts or separates from the basic rail 105, and the movable rail 109 contacts or separates from the blade rail 108.

  In a time zone where a foreign matter removing operation such as a time zone during vehicle operation may be necessary, the compressed air supplied from the air source device 11 passes through the main tank 12 and the first sub tank 13 and the first sub tank 13. 2 is stored in the sub-tank 15. From this state, as described above, the electromagnetic switching valves 21 and 27 are switched based on the command from the control device, so that the compressed air stored in the first sub tank 13 passes through the first nozzle pipe 19 to the first. The compressed air that flows to the nozzle unit 14 and is stored in the second sub tank 15 flows to the second nozzle unit 16 through the second nozzle pipe 20. Then, compressed air is jetted from the upper nozzle 25 and the lower nozzle 26 in the first nozzle unit 14, and foreign substances that have fallen between the basic rail 105 and the tongrail 106 in the front portion of the track branching section 100 due to this compressed air. It will be blown off to the front side and removed. In addition, compressed air is injected from the nozzle holes (29, 30) in the second nozzle unit 16, and the compressed air causes the foreign matter to fall between the blade rail 108 and the movable rail 109 in the crossing portion C of the track branching portion 100. Will be blown away to the rear side and removed.

  After the above-described compressed air injection operation is completed, the electromagnetic switching valve 21 is switched, the first nozzle pipe 19 is shut off, and the compressed air supplied from the main tank 12 is filled in the first sub-tank 13 and the next time. It will be stored in preparation for injection. Further, the electromagnetic switching valve 27 is also switched to shut off the second nozzle pipe 20, and the compressed air supplied from the main tank 12 is filled in the second sub tank 15 and stored for the next injection.

(Effect of foreign matter removal device)
According to the foreign substance removing device 1 described above, the compressed air supplied from the air source device 11 is injected from the first nozzle unit 14 through the main tank 12 and the first sub tank 13 in the front portion of the track branching portion 100. become. For this reason, the first sub-tank 13 having a capacity sufficient to secure a predetermined injection amount at least once at the nozzle injection pressure required in the first nozzle unit 14 exhibits a sufficient foreign matter removing capability. can do. Even when compressed air is injected from the first nozzle unit 14, the compressed air is immediately supplied from the main tank 12 having a larger capacity than the first sub tank 13 to the first sub tank 13 to prepare for the next and subsequent injections. it can. Furthermore, since the small first sub-tank 13 is disposed in the vicinity of the track branching unit 100 and the large main tank 12 and the air source device 11 are disposed far away, the track branching unit 100 has a small installation space. However, the foreign matter removing apparatus 1 having a compressed air supply system that can secure a sufficient nozzle injection pressure without arranging a large tank or an air source device in the vicinity of the track branching section 100 can be configured. .

  Therefore, according to the present embodiment, even in the vicinity of the track branching section 100, even if the track branching section 100 has difficulty in securing a space for installing an air source device and a tank having specifications necessary for securing the nozzle injection pressure. Therefore, it is possible to provide the foreign matter removing apparatus 1 that can ensure a sufficient nozzle injection pressure.

  Further, according to the foreign matter removing apparatus 1, in the track branching section 100 disposed on the elevated track 101, the large main tank 12 and the air source device 11 are disposed below the elevated track 101 where sufficient space can be easily secured. The small first sub-tank 13 is arranged by utilizing a narrow region in the central portion of the elevated track 101 in the vicinity of the track branch portion 100. For this reason, it is difficult to secure a space for installing a large-sized air source device and a tank with sufficient specifications to achieve the nozzle injection pressure that exhibits the required foreign substance removal capability in the region in the vicinity of the track branching unit 100. Even in the track branching portion 100 of the elevated overhead track 101, it is possible to provide a foreign matter removing device for the track branching portion that can ensure a sufficient nozzle injection pressure.

  Further, according to the foreign matter removing apparatus 1, a plurality of first nozzle pipes 19 and first sub tanks 13 are provided, and each first sub tank 13 is provided corresponding to each first nozzle pipe 19. For this reason, even if it is the large track branching part 100 extended long in a track direction, by arrange | positioning the 1st nozzle piping 19 and the 1st subtank 13 along a track direction, each arrange | positioned along a track direction long. The structure which can ensure sufficient nozzle injection pressure in the 1st nozzle unit 14 is realizable.

  Moreover, according to the foreign material removal apparatus 1, each 1st sub tank 13 is arrange | positioned along each 1st nozzle piping 19 arrange | positioned along a track | orbit. For this reason, each 1st sub tank 13 which each 1st nozzle piping 19 connects can be arrange | positioned so that it may approach to the track | orbit branch part 100 along a track | orbit, and the 1st nozzle unit 14 and the 1st sub tank 13 are arranged. The structure which shortens the piping length of the 1st nozzle piping 19 to connect can be made easy to implement | achieve. Thereby, the pressure loss in the first nozzle pipe 19 can be further suppressed, and the nozzle injection pressure can be easily secured.

  Further, according to the foreign matter removing apparatus 1, the compressed air supplied from the air source device 11 is jetted from the second nozzle unit 16 through the main tank 12 and the second subtank 15 in the crossing portion C on the rear side of the track branching portion 100. Will be. For this reason, the air source device 11 and the main tank 12 that supply the compressed air to the first nozzle unit 14 at the front portion can be used in common in the crossing portion C. And since compressed air is supplied via the small 2nd sub tank 15, even in the crossing part C with a small installation space, sufficient nozzle injection pressure can be ensured in the 2nd nozzle unit 16. FIG. Therefore, the common air source device 11 and the second nozzle unit (14, 16) disposed in the front part and the crossing part C, which are located in a small space in the orbital direction, respectively, Compressed air can be efficiently supplied from the main tank 12, and a sufficient nozzle injection pressure can be secured.

(Modification)
Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made as long as they are described in the claims. For example, the following modifications can be implemented.

(1) In this embodiment, although the case where the structure which injects compressed air is arrange | positioned in both the front part of a track branch part and a crossing part was demonstrated as an example, it does not necessarily need to be this way and compression. The foreign material removal apparatus in which the structure which injects air is provided only in the front part may be sufficient. Moreover, about the form of a 1st nozzle unit and a 2nd nozzle unit, it is not restricted to what was illustrated by this embodiment, You may change and implement a design suitably.

(2) In the present embodiment, the case where the present invention is applied to the track branching portion disposed on the elevated track has been described as an example. The present invention may be applied to the trajectory branching portion.

(3) In the present embodiment, the first sub tank and the second sub tank arranged in the vicinity of the track branching portion in the elevated track are arranged in the central portion in the direction perpendicular to the track direction of the elevated track. Although described as an example, this is not necessarily the case, and other arrangement configurations may be used. FIG. 7 is a schematic cross-sectional view of an elevated track for explaining a modified example of the arrangement configuration of the first sub tank and the second sub tank, and corresponds to FIG. 2 of the present embodiment. In FIG. 7, only the arrangement configuration of the first sub-tank is illustrated, and the same components as those in the present embodiment are denoted by the same reference numerals and description thereof is omitted.

  In the modification shown in FIG. 7, the first sub-tank 31 is disposed below the inspection passage 104 installed at the end of the elevated track 101 in the direction perpendicular to the track direction. A second sub tank (not shown) is also disposed below the inspection passage 104. Normally, the space below the inspection passage 104 is a narrow space, and it is difficult to arrange a large air source device. However, if the first sub-tank 31 and the second sub-tank are small, such a narrow space is used. Can be arranged.

  Therefore, according to the foreign matter removing apparatus according to the modified example shown in FIG. 7, the large main tank 12 and the air source device 11 can easily secure a sufficient space in the track branching portion arranged in the elevated track 101. The small first sub-tank 31 and the second sub-tank are disposed using the narrow area below the inspection passage 104 at the end of the elevated track 101 in the vicinity of the track branching portion 100. . For this reason, it is difficult to secure a space for installing a large-sized air source device or a tank with sufficient specifications to achieve the nozzle injection pressure that exhibits the required foreign substance removal capability in the area near the track branching portion. In the track branch portion of the elevated track 101, it is possible to provide a foreign matter removing device for the track branch portion that can ensure a sufficient nozzle injection pressure.

(4) Moreover, about the arrangement structure of a 1st sub tank and a 2nd sub tank, another modification can also be implemented. FIG. 8 is a schematic cross-sectional view of an elevated track for explaining another modified example of the arrangement configuration of the first sub tank and the second sub tank, and corresponds to FIG. 2 of the present embodiment. In FIG. 8, only the arrangement configuration of the first sub-tank is illustrated as in the modification of FIG. 7, and the same components as those in the present embodiment are denoted by the same reference numerals and described. Omitted.

  In the modification shown in FIG. 8, the first sub-tank 32 is a tank installation deck attached to the outer side of the side wall 101 c of the upper structure 101 a provided at the end in the direction perpendicular to the track direction in the elevated track 101. 33. A second sub tank (not shown) is also disposed on the tank installation deck 33. In this way, by providing the small space tank installation deck 33 outside the side wall 101c of the upper structure 101a, the small first sub tank 32 and the second sub tank can be arranged.

  Therefore, according to the foreign matter removing apparatus according to the modification shown in FIG. 8, the large main tank 12 and the air source device 11 can easily secure a sufficient space at the track branching portion disposed on the elevated track 101. The small first sub-tank 32 and the second sub-tank are disposed on a tank installation deck 33 that is disposed below the 101 and provided outside the side wall 101c of the upper structure 101a of the elevated track 101. For this reason, it is difficult to secure a space for installing a large-sized air source device or a tank with sufficient specifications to achieve the nozzle injection pressure that exhibits the required foreign substance removal capability in the area near the track branching portion. In the track branch portion of the elevated track 101, it is possible to provide a foreign matter removing device for the track branch portion that can ensure a sufficient nozzle injection pressure.

(5) The shape of the first sub tank or the second sub tank can be variously changed. For example, the first subtank and the second subtank can be formed as a header pipe structure formed in a pipe shape having a large diameter. FIG. 9 is a schematic diagram showing a first sub tank 34 according to a modification. 9A shows an example in which one first nozzle pipe 19a is connected to the first sub tank 34. In FIG. 9B, a plurality of first nozzle pipes are connected to the first sub tank 34. Each example is shown in which 19b is connected.

  As shown in FIG. 9, the first sub tank 34 may be formed as a header piping structure formed in a pipe shape having a large diameter. The first sub-tank 34 is supplied with compressed air via the inter-tank pipe 18, and this compressed air is stored inside the large-diameter pipe. The first sub tank 34 is arranged such that its longitudinal direction is along the track direction. In the modification shown in FIG. 9A, when the electromagnetic switching valve 21a is operated, the compressed air is supplied through the first nozzle pipe 19a that is branched and connected to each first nozzle unit (not shown). It will be. On the other hand, in the modification shown in FIG. 9B, when each electromagnetic switching valve 21b is operated, compressed air is supplied via each first nozzle pipe 19b connected to each first nozzle unit (not shown). It will be. As described above, according to the first sub tank 34 formed as a large-diameter header piping structure, the first sub tank 34 can be arranged in an elongated area along the track direction, so that the first sub tank can be arranged more easily even in a small space. can do.

  INDUSTRIAL APPLICABILITY The present invention can be widely applied as a foreign matter removing device for a track branch portion that is provided at a track branch portion and removes foreign matter dropped between the rails by jetting compressed air. .

It is a top view which shows typically the track | orbit branch part provided with the foreign material removal apparatus of the track | orbit branch part which concerns on one embodiment of this invention, and this foreign material removal apparatus. It is typical sectional drawing about the elevated type track | orbit in which the track | orbit branch part shown in FIG. 1 is arrange | positioned. It is a top view which shows the area | region of the vicinity of a basic rail and a Tongleil in the track branch part shown in FIG. FIG. 5 is a cross-sectional view taken along line FF in FIG. 3. It is a top view which shows the wing rail in the crossing part in the track | orbit branch part shown in FIG. 1, and the area | region of the vicinity. FIG. 6 is a partially enlarged view of FIG. 5 and a cross-sectional view taken along line HH in FIG. 5. It is a typical sectional view of an elevated track for explaining the modification about the arrangement composition of the 1st sub tank and the 2nd sub tank. It is a typical sectional view of an elevated track for explaining other modifications about arrangement composition of the 1st sub tank and the 2nd sub tank. It is a schematic diagram which shows the modification of a 1st subtank.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foreign matter removal apparatus 11 of track branch part Air source device 12 Main tank 13 First sub tank 14 First nozzle unit 18 Inter-tank pipe 19 First nozzle pipe 100 Track branch part 105 Basic rail 106 Tongue rail

Claims (6)

It is provided for a track branching portion having a basic rail and a tongrail that can be brought into contact with and separated from the basic rail, and removes foreign matter dropped between the rails by injecting compressed air. A foreign matter removing device for a track branching portion,
A first nozzle unit that is disposed in a front portion that is located on a front side where the basic rail and the tongrel can come into contact with each other in the track branch portion, and that injects compressed air;
A first nozzle pipe connected to the first nozzle unit;
A first subtank connected to the first nozzle pipe and supplying compressed air to the first nozzle unit;
A main tank provided as a tank having a larger capacity than the first sub-tank, connected to the first sub-tank via an inter-tank pipe and supplying compressed air to the first sub-tank;
An air source device for supplying compressed air to the main tank;
With
The foreign matter removing device for a track branching portion, wherein the first sub tank is disposed in the vicinity of the track branching portion, and the main tank and the air source device are disposed far away. The foreign matter removing apparatus for a track branching portion according to claim 1,
Provided for the trajectory bifurcation arranged in an elevated trajectory spanned to a position higher than the ground,
The main tank and the air source device are disposed below the elevated track,
The first sub-tank is disposed at a central portion in a direction perpendicular to the track direction in the elevated track, and the foreign matter removing device for the track branching portion. The foreign matter removing apparatus for a track branching portion according to claim 1,
Provided for the trajectory bifurcation arranged in an elevated trajectory spanned to a position higher than the ground,
The main tank and the air source device are disposed below the elevated track,
The foreign matter removing device for a track branching portion, wherein the first sub-tank is disposed below an inspection passage installed at an end in a direction perpendicular to the track direction in the elevated track. The foreign matter removing device for a track branching portion according to any one of claims 1 to 3,
A plurality of the first nozzle pipes are provided,
A plurality of the first sub tanks are provided so as to be connected to each of the plurality of first nozzle pipes, and the foreign substance removing device for the orbital branching portion. The foreign matter removing device for a track branching portion according to claim 4,
The plurality of first sub-tanks are arranged along the plurality of first nozzle pipes arranged along a track, and the foreign matter removing device for the track branching portion. The foreign matter removing device for a track branching portion according to any one of claims 1 to 5,
A second nozzle unit that is disposed in a crossing portion where the rail intersects on the rear side opposite to the front side in the track branching portion, and injects compressed air;
A second nozzle pipe connected to the second nozzle unit;
A second subtank connected to the second nozzle pipe and supplying compressed air to the second nozzle unit;
Further comprising
The main tank is provided as a tank having a larger capacity than the second sub tank, and is connected to the second sub tank via an inter-tank pipe and supplies compressed air to the second sub tank.
The foreign matter removing device for the track branching portion, wherein the second sub tank is disposed in the vicinity of the track branching portion, and the main tank and the air source device are disposed far away.

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