JP2010007423A - Foreign matter removing device in track branched section - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a foreign matter removing device in a track branched section capable of removing a foreign matter from between rails in a crossing part in the track branched section. <P>SOLUTION: In this foreign matter removing device, a nozzle unit 14 is arranged in the crossing part C in the track branched section 100 and injects compressed air. An air supply device 11 supplies compressed air into the nozzle unit 14, which is arranged on a front side in the crossing part C and is provided with an injection port formed and opened to inject compressed air toward a backward side in the crossing part C. <P>COPYRIGHT: (C)2010,JPO&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).

  In the foreign matter removing apparatus disclosed in Patent Literature 1 to Patent Literature 6, the mounting configuration of the piping unit provided with the nozzle is different. First, Patent Document 1 and Patent Document 2 disclose a foreign substance removing device in which a piping unit is attached to a rail by inserting a bolt into a hole provided in a belly portion of the rail. Further, in Patent Document 3, a foreign matter removing device in which a piping unit is attached to a rail by using a holding bracket having a special structure arranged along the bottom surface of the rail and using a mounting bolt of a rail stopper. Is disclosed. Moreover, in patent document 4 thru | or patent document 6, the member (bolt, screw, etc.) for attachment which fixes a piping unit to a rail is provided with a hollow structure, The inside serves as a supply passage which supplies compressed air to a piping unit. A constructed foreign matter removal apparatus is disclosed.

JP-A-6-240605 (page 2-3, FIG. 1, FIG. 3) JP 7-54317 A (page 2-3, FIG. 1-2) JP 2000-144602 A (3rd page, FIG. 1-7) Japanese Unexamined Patent Publication No. 2000-144670 (page 3, FIG. 1-2, FIG. 5) JP-A-7-54318 (page 3, Fig. 1-2) JP 2001-131935 A (page 4, FIG. 2-3)

  In each of the foreign substance removing devices disclosed in Patent Document 1 to Patent Document 6 described above, a nozzle is provided at the front portion of the track branching portion located on the front side where the basic rail and the Tongrel can abut. . That is, in these patent documents, the structure of the foreign material removal apparatus which removes a foreign material between the rails of the front part in a track | orbit branch part (between a basic rail and a tong gleil) is disclosed. Therefore, in the foreign matter removing apparatus disclosed in Patent Documents 1 to 6, the foreign matter can be removed at the crossing portion that is located on the rear side opposite to the front portion of the track branching portion and intersects with the rail. Can not.

  Moreover, when it is going to apply the foreign material removal apparatus disclosed by said patent document 1 thru | or patent document 6 as a foreign material removal apparatus between the rails of the crossing part of a track branch part, a piping unit provided with the nozzle is used as a crossing part. Must be installed between the rails. However, since the distance between the rails of the crossing portion is very narrow, it is difficult to attach the piping unit so that the nozzle is disposed in the crossing portion. In particular, in the crossing part of the large track branching part provided in the track structure for Shinkansen, etc., the wing rail that is located in the part where the rails intersect and is open in the front-rear direction can be brought into contact with and separated from this A movable rail is provided, and the distance between the blade rail and the movable rail is extremely narrow. For this reason, a piping unit provided with a nozzle such as the foreign matter removing device disclosed in Patent Documents 1 to 6 cannot be attached between the blade rail and the movable rail in the crossing section.

  In view of the above circumstances, an object of the present invention is to provide a foreign matter removing device for a track branching portion that makes it possible to remove foreign matter between rails of a crossing portion of the track branching portion.

  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. A nozzle unit that is disposed on a crossing portion that is located on the rear side opposite to the front portion located on the front side and intersects with the rails, and that injects compressed air; and an air source device that supplies the nozzle unit with compressed air The nozzle unit is disposed on the front side of the crossing portion and has an opening shape so as to inject compressed air toward the rear side of the crossing portion. And it is provided by injection port.

According to this invention, the nozzle unit which injects compressed air is arrange | positioned in the front side in a crossing part. For this reason, a nozzle unit can be arrange | positioned so that it may prevent interfering with a rail in the crossing part containing the area | region where the space | interval between rails is narrow. Since the nozzle unit is provided with an injection port for injecting compressed air toward the rear side in the crossing part, the compressed air is injected from the front side to the space between the rails having a narrow interval in the crossing part to remove foreign substances. It can be removed by blowing back.
Therefore, according to the present invention, it is possible to provide a foreign matter removing device for a track branching portion that makes it possible to remove foreign matter between the rails of the crossing portion of the track branching portion.

  A foreign matter removing apparatus for a track branching portion according to a second aspect of the present invention is the foreign matter removing apparatus for a track branching portion according to the first aspect, wherein the nozzle unit is located at a portion where the rails intersect at the crossing portion and opens in the front-rear direction A pair of rear open rail portions that are disposed between a pair of front open rail portions that extend so as to open toward the front side in the wing rails that are formed in a shape, and that extend so as to open toward the rear side in the wing rails. Compressed air is jetted toward a movable rail that can be contacted and separated inside.

  According to this invention, a nozzle unit is arrange | positioned between a pair of front open rail parts in the blade | wing rail in which a movable rail contact | abuts and spaces apart with respect to a pair of back open rail parts. For this reason, a nozzle unit is arrange | positioned in a crossing part, without interfering with a wing rail and a movable rail. The nozzle unit injects the compressed air toward the rear movable rail that contacts and separates inside the pair of rear open rail portions, so that the foreign matter dropped between the blade rail and the movable rail It can be removed by blowing away.

  According to a third aspect of the present invention, there is provided a foreign matter removing apparatus for a track branching portion according to the second aspect of the present invention. The foreign matter removing apparatus for a track branching portion according to the second invention is provided with a plurality of the injection ports, It is characterized by being arranged so as to extend along a plane perpendicular to the longitudinal direction of the.

  According to the present invention, the compressed air is injected toward the movable rail from the injection port that is spread in the plane direction between the pair of front opening rail portions in the wing rail. The compressed air spreads and flows in the area between them. For this reason, foreign substances can be more uniformly removed in the region between the wing rail and the movable rail.

  A foreign matter removing apparatus for a track branching portion according to a fourth aspect of the present invention is the foreign matter removing apparatus for a track branching portion according to any one of the first to third inventions, wherein a plurality of the injection ports are provided and the nozzle unit is concentric. It is characterized by being arranged in.

  According to the present invention, in the nozzle unit, a plurality of injection ports are arranged concentrically. For this reason, the compressed air injected from many injection ports can be injected in a more dense state, and the foreign matter between the rails of the crossing part can be efficiently removed with high foreign matter removing ability.

  A foreign matter removing device for a track branching portion according to a fifth aspect of the present invention is the foreign matter removing device for a track branching portion according to any of the first to fourth inventions, wherein the injection port is on the rear side and obliquely below the crossing portion. An opening is formed so as to inject compressed air.

  According to the present invention, the compressed air is jetted rearward and obliquely downward from the jet port. For this reason, the compressed air injected downward flows so as to bounce off the track, and accordingly, the foreign matter falling on the track is removed so as to be bounced up. Thereby, it is possible to efficiently remove the foreign matter that has fallen off at the crossing portion of the track branching portion.

  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 aspects of the invention, wherein the heated air that is heated and heated is supplied to the nozzle unit. The apparatus further comprises a supply device, wherein the nozzle unit is further provided with a hot air outlet that is formed so as to blow out the heated air toward the rear side of the crossing section.

  According to the present invention, since the heated air is blown out from the nozzle unit toward the rear side in the crossing portion, the nozzle unit causes the crossing portion to perform a snow melting function using the heated air in addition to the foreign matter removing function using the compressed air. Can also fulfill. And since the warm air outlet is provided using the nozzle unit, in the crossing part, a nozzle unit having a compact structure including both a structure for injecting compressed air and a structure for blowing out warm air is arranged to remove foreign matter. Can be removed.

  The foreign matter removing apparatus for a track branching portion according to a seventh aspect of the present invention is the foreign matter removing apparatus for a track branching portion according to the sixth aspect of the invention, wherein the nozzle unit is provided with the hot air outlet at the end of the nozzle unit. A wind blower outlet is arranged at a central portion of the end portion, and a plurality of the jet outlets are arranged around the hot air blower outlet.

  According to the present invention, at the end of the nozzle unit, the hot air outlet is disposed in the center portion, and the injection ports are disposed around the center. For this reason, the hot air outlet and the injection port can be arranged densely without causing interference, and a nozzle unit having a more compact structure including both a configuration for injecting compressed air and a configuration for blowing out hot air is realized. be able to. Further, the hot air outlet that blows out the heated air is required to have a larger diameter than the injection outlet that injects the compressed air. However, since this hot air outlet is disposed at the center, the hot air outlet has a larger diameter. Can be easily formed.

  ADVANTAGE OF THE INVENTION According to this invention, the foreign material removal apparatus of a track branch part which makes it possible to remove a foreign material between the rails of the crossing part of a track branch part can be provided.

  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.

[First Embodiment]
(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”) of a track branching portion according to the first embodiment of the present invention and a track branching portion 100 provided with the foreign matter removing device 1. FIG. The track branching section 100 shown in FIG. 1 is provided, for example, on a track in a track structure for a Shinkansen (structure such as rails, sleepers, roadbeds, etc. arranged on the roadbed).

  As shown in FIG. 1, in the track branching unit 100, a pair of basic rails 101, 101, a pair of tonglers 102, 102, a lead rail 103, a wing rail (wing glail) 104, a movable rail 105, a fixed unit 106, A main rail 107 is installed. As shown in FIG. 1, the pair of basic rails 101, 101 are arranged in a state of being spaced apart by a predetermined distance, and a pair of tonglers 102, 102 are arranged between the pair of basic rails 101, 101. ing. Although not shown, the basic rail 101 and the tongrel 102 are disposed on the sleeper via a floor plate or a bearing floor plate, and the tongrel 102 is configured to be movable by the bearing floor plate. As a result, each of the tongrels 102 is provided so as to be able to contact and separate from each basic rail 101.

  Here, the side where the basic rail 101 and the tongrel 102 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 101 and the tongue rail 102 abut on the front side of the track branching portion 100. The crossing portion C is configured as a region where the wing rail 104, the movable rail 105, and the fixed portion 106 are arranged on the rear side of the track branching portion 100. The lead portion L is configured as an area where the lead rail 103 is disposed between the point portion P and the crossing portion C and connecting the point portion P and the crossing portion C. In the present embodiment, the point portion P and the lead portion L of these regions constitute a front portion located on the front side in the track branching portion 100, and the crossing portion C is opposite to the front portion. It is comprised as an area | region including the part which a rail is located in the back side and cross | intersects.

  FIG. 2 is a plan view showing the blade rail 104 and the area in the vicinity thereof in the crossing part C of the track branching part 100. As shown in FIGS. 1 and 2, the wing rail 104 is formed in a shape that is located in a crossing portion C at a portion where the rails intersect and is open in the front-rear direction. The wing rail 104 includes a pair of front opening rail portions 108 and 108 extending so as to open toward the front side, and a pair of rear opening rail portions 109 and 109 extending so as to open toward the rear side. It is configured.

  As shown in FIGS. 1 and 2, the movable rail 105 is formed in a shape in which the front side becomes narrower and the rear side is bifurcated. The movable rail 105 is disposed so that the bifurcated portion abuts on a fixed portion 106 having a tip portion that is pointed in a substantially triangular shape and can swing. In addition, the movable rail 105 can be brought into contact with and separated from the pair of rear open rail portions 109 and 109 in the wing rail 104 at the front end thereof in accordance with the swinging motion of the movable rail 105. It is configured.

  In the track branching section 100 described above, the ends on the front side of the respective Tongrels 102 are connected in a state where a constant interval is maintained by a rolling bar provided in a rolling mill (not shown). Then, when the rolling mill is operated based on a command from a control device (not shown), the tongue rail 102 moves in a direction in which the basic rail 101 abuts or separates, and the traveling rail switching operation ( Point switching operation). Further, at this time, the movable rail 105 of the crossing part C is configured to be displaced in conjunction with the tongrel 102 in accordance with the operation of the rolling mill, and is displaced so as to swing with the fixed part 106 as a fulcrum structure. The end on the side is configured to abut against or separate from the blade rail 104.

(Structure of foreign matter removal device)
Next, the configuration of the foreign matter removing apparatus 1 according to the first 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 and 2, the foreign matter removing apparatus 1 includes an air source device 11, a main tank 12, a sub tank 13, a nozzle unit 14, a front compressed air injection mechanism 15, an air pipe 16, an inter-tank pipe 17, and a nozzle. A pipe 18 and an electromagnetic switching valve 19 are provided.

  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 nozzle unit 14 via the main tank 12 and the sub tank 13. The air source device 11 and the main tank 12 are connected via an air pipe 16, and the compressed air generated by the air source device 11 is supplied to the main tank 12 via the air pipe 16 and stored. .

  As shown in FIGS. 1 and 2, the main tank 12 is provided as a large tank having a larger capacity than the sub tank 13. The main tank 12 is connected to the sub tank 13 through an inter-tank pipe 17 so as to supply compressed air to the sub tank 13. Further, the inter-tank pipe 17 is branched from the middle, and is also connected to a front compressed air injection mechanism 15 provided as a mechanism for removing foreign matter between the basic rail 101 and the tongrel 102 by injection of compressed air. is doing. That is, the air source device 11 and the main tank 12 which are compressed air supply sources for supplying compressed air to the nozzle unit 14 are also used as compressed air supply sources for the front compressed air injection mechanism 15.

  As shown in FIGS. 1 and 2, the sub tank 13 is provided as a tank for supplying compressed air to the nozzle unit 14 via the nozzle pipe 18. The capacity of the sub tank 13 is set such that, for example, the nozzle unit 14 has a capacity sufficient to secure a predetermined injection amount at least once at the nozzle injection pressure required from the viewpoint of foreign matter removal capability. The small sub tank 13 is disposed in the vicinity of the crossing section C in the track branching section 100, and the air source device 11 and the large main tank 12 are disposed far from the track branching section 100. For example, if the track branching section 100 is arranged on an elevated track that is bridged to a position higher than the ground, like a track structure for a Shinkansen, the installation space around the track branching section 100 is reduced. Since it is difficult to ensure, the air source device 11 and the main tank 12 are arranged on the ground below the elevated track. A small sub-tank 13 is disposed in the vicinity of the crossing portion C of the track branching portion 100. Thus, by arranging the sub tank 13 in the vicinity of the crossing portion C, it is possible to suppress the increase in pressure loss due to the length of the pipe of the nozzle pipe 18 and to secure the injection pressure in the nozzle unit 14. Can be made easier.

  3 shows an enlarged view (FIG. 3 (a)) showing an enlarged view of the region surrounded by the broken line D in FIG. 2, and a cross-sectional view taken along the line EE in FIG. 2 (FIG. 3 (b)). It is a thing. As shown in FIGS. 1 to 3, the nozzle pipe 18 is provided as a pipe connecting the nozzle unit 14 and the sub tank 13. And the front end side connected to the nozzle unit 14 in the nozzle pipe 18 is disposed so as to extend between the pair of front opening rail portions 108 and 108 in the blade rail 104 and toward the rear side. Further, the nozzle pipe 18 is provided with an electromagnetic switching valve 19 in the middle thereof, and the operation of the electromagnetic switching valve 19 is switched based on a command from a control device (not shown). For this reason, the nozzle pipe 18 is switched to either the communication state or the cutoff state by the electromagnetic switching valve 19. Thereby, supply of the compressed air to the nozzle unit 14 via the nozzle pipe 18 is controlled, and the injection operation of the compressed air injected from the nozzle unit 14 is controlled.

  As shown in FIGS. 1 to 3, the nozzle unit 14 for injecting compressed air is disposed in the crossing part C in the track branching part 100. The nozzle unit 14 is disposed between the pair of front opening rail portions 108 and 108 of the blade rail 104 on the front side in the crossing portion C. And the nozzle unit 14 is arrange | positioned in the area | region between a pair of front open rail parts 108 and 108 with the part of the front end side of the nozzle piping 18 in the lower space which does not interfere with the wheel of a vehicle ( (Refer FIG.3 (b)).

  FIG. 4 is a view showing only the nozzle unit 14, and a front view (FIG. 4B), a plan view (FIG. 4A), and a right side view (FIG. 4C) of the nozzle unit 14. Is shown. As shown in FIGS. 2 to 4, the nozzle unit 14 includes a cylindrical member 20 having one end connected to the nozzle pipe 18, a flat lid member 21 attached to the other end of the cylindrical member 20, and It is configured with. The cylindrical member 20 has a hollow portion 20a formed therein. The lid member 21 is disposed between the pair of front opening rail portions 108 and 108 so as to face the front end of the movable rail 105.

  The lid member 21 is provided with a plurality of large-diameter injection ports 22 having a large opening area and small-diameter injection ports 23 having a small opening area. The large-diameter injection port 22 and the small-diameter injection port 23 inject the compressed air toward the rear side in the crossing portion C, and thereby the compressed air is injected toward the tip of the movable rail 105. An opening is formed at 21. Further, the large-diameter injection port 22 and the small-diameter injection port 23 are formed so as to inject compressed air on the rear side in the crossing portion C and slightly obliquely downward.

  The large-diameter injection port 22 is disposed on the center side of the lid member 21, which is the center side at the other end of the nozzle unit 14, and the small-diameter injection port 23 is disposed around the large-diameter injection port 22. As shown in FIG. By forming in this way, the large-diameter injection ports 22 and the small-diameter injection ports 23 are arranged concentrically in the nozzle unit 14. Further, the large-diameter injection port 22 and the small-diameter injection port 23 are formed in the flat lid member 21 so that the plane between the pair of front opening rail portions 108 and 108 is perpendicular to the longitudinal direction of the blade rail 104. It is arranged to spread along.

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

  In the above-described state, 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 a switch (not shown). A foreign matter removing operation is performed by issuing a switching command for the electromagnetic switching valve 19 and operating the electromagnetic switching valve 19 based on an operation command signal of various devices such as an operation signal (point switching signal). Become. Further, in accordance with the point switching signal, the front end of the Tongle rail 102 abuts or separates from the basic rail 101, and the movable rail 105 is a pair of rear open rail portions 109, 109 in the wing rail 104. Abuts or separates.

  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 is stored in the sub tank 13 via the main tank 12. Yes. From this state, as described above, the electromagnetic switching valve 19 is switched based on a command from the control device, so that the compressed air stored in the sub tank 13 flows to the nozzle unit 14 via the nozzle pipe 18. Then, compressed air is injected from the large-diameter injection port 22 and the small-diameter injection port 23 in the nozzle unit 14, and the compressed air falls between the blade rail 104 and the movable rail 105 in the crossing portion C of the track branching unit 100. The foreign matter is blown away to the rear side and removed.

  After the above-described compressed air injection operation is completed, the electromagnetic switching valve 19 is switched, the nozzle pipe 18 is shut off, and the compressed air supplied from the main tank 12 is filled in the sub tank 13 to prepare for the next injection. Will be stored.

(Effect of foreign matter removal device)
According to the foreign matter removing apparatus 1 described above, the nozzle unit 14 that injects compressed air is disposed on the front side in the crossing portion C. For this reason, the nozzle unit 14 can be arrange | positioned so that it may prevent interfering with a rail in the crossing part C containing the area | region where the space | interval between rails is narrow. Note that the interval between the blade rail 104 and the movable rail 105 in the crossing portion C (the interval between one of the pair of rear opening rail portions 109 and 109 and the movable rail 105) is generally as narrow as about 6 mm. It is the target. However, even in the crossing portion C including the region where the distance between the rails is narrow as described above, the nozzle unit 14 can be disposed on the front side of the crossing portion C so as to prevent interference with the rail. And since the nozzle unit 14 is provided with the large diameter injection port 22 and the small diameter injection port 23 which inject compressed air toward the back side in the crossing part C, between the rails with a narrow space | interval in the crossing part C Compressed air can be sprayed from the front side to blow off foreign matters to the rear side and removed.

  Therefore, according to the present embodiment, it is possible to provide the foreign matter removing apparatus 1 that makes it possible to remove foreign matter between the rails of the crossing portion C of the track branching portion 100.

  Further, according to the foreign matter removing apparatus 1, the nozzle unit 14 is disposed between the pair of front open rail portions 108 and 108 in the blade rail 104 in which the movable rail 105 contacts and separates from the pair of rear open rail portions 109 and 109. Placed in. For this reason, the nozzle unit 14 is arranged in the crossing portion C without interfering with the blade rail 104 and the movable rail 105. And since the nozzle unit 14 injects compressed air toward the movable rail 105 of the back side which contact | abuts and spaces apart inside a pair of back open rail parts 109 and 109, between the wing rail 104 and the movable rail 105, it is. The foreign matter that has fallen on the surface can be removed by blowing away toward the rear side.

  Further, according to the foreign matter removing apparatus 1, the compressed air is transferred from the large-diameter injection port 22 and the small-diameter injection port 23 that are arranged in a plane direction between the pair of front opening rail portions 108 and 108 in the wing rail 104. Therefore, the compressed air sufficiently spreads and flows in a region between the inside of the blade rail 104 and the movable rail 105. For this reason, foreign substances can be more uniformly removed in the region between the wing rail 104 and the movable rail 105.

  Further, according to the foreign matter removing apparatus 1, in the nozzle unit 14, a plurality of large-diameter injection ports 22 and small-diameter injection ports 23 are arranged concentrically. For this reason, the compressed air injected from many injection ports (22, 23) can be injected in a more dense state, and the foreign matter between the rails of the crossing part C can be efficiently removed with high foreign matter removing ability. can do.

  Further, according to the foreign matter removing apparatus 1, the compressed air is jetted rearward and obliquely downward from the large-diameter jet port 22 and the small-diameter jet port 23. For this reason, the compressed air injected downward flows so as to bounce off the track, and accordingly, the foreign matter falling on the track is removed so as to be bounced up. Thereby, in the crossing part C of the track branch part 100, the fallen foreign material can be efficiently removed by jumping up.

[Second Embodiment]
(Structure of foreign matter removal device)
Next, the foreign matter removing apparatus 2 (hereinafter simply referred to as “foreign matter removing apparatus 2”) for the track branching portion according to the second embodiment of the present invention will be described. As in the first embodiment, the foreign matter removing apparatus 2 according to the second embodiment is provided for the track branching section 100, and sprays compressed air, such as snow or stepping stones that fall between the rails. Installed to remove foreign matter. In the following description, the same components as those in the first embodiment are referred to by the same reference numerals in the description of the first embodiment or the same reference numerals in the drawings, and the description thereof is omitted. Further, the configuration of the track branching unit 100 is the same as that of the first embodiment, and the description thereof is omitted.

  FIG. 5 is a plan view showing the blade rail 104 and the region in the vicinity thereof in the crossing part C of the track branching part 100 in which the foreign substance removing device 2 is provided. The foreign matter removing device 2 is similar to the foreign matter removing device 1 of the first embodiment. The air source device 11, the main tank 12, the sub tank 13, the front compressed air injection mechanism 15, the air pipe 16, the inter-tank pipe 17, and the nozzle pipe. 18 and an electromagnetic switching valve 19 or the like (see FIG. 1). However, as shown in FIG. 5, the foreign substance removing device 2 further includes a hot air supply device 25 and a hot air pipe 26 that are not provided in the first embodiment, and a nozzle unit having a configuration different from that of the first embodiment. 24.

  The hot air supply device 25 shown in FIG. 5 is provided as a device that supplies heated air heated and heated to the nozzle unit 24, and includes a fan and a heater for heating (not shown). The warm air supply device 25 first sucks ambient air with a rotating fan, heats the sucked air with a heater for heating to generate heated air, and further heats the heated air with the fan. The pipe 26 is configured to blow air. On the other hand, the hot air pipe 26 is connected to the nozzle unit 24. Thereby, the heated air (warm air) blown from the warm air supply device 25 is supplied to the nozzle unit 24 via the warm air pipe 26.

  6 shows an enlarged view (FIG. 6A) showing an enlarged view of a region surrounded by a broken line F in FIG. 5, and a cross-sectional view taken along line GG in FIG. 5 (FIG. 6B). It is a thing. As shown in FIGS. 5 and 6, the nozzle unit 24 that is connected to the distal end side of the nozzle pipe 18 and injects compressed air is disposed in the crossing portion C in the track branching portion 100 as in the first embodiment. Yes. The nozzle unit 24 is disposed between the pair of front opening rail portions 108 and 108 of the blade rail 104 on the front side in the crossing portion C. And the nozzle unit 24 is arrange | positioned in the lower space which does not interfere with the wheel of a vehicle in the area | region between a pair of front open rail parts 108 and 108 with the part at the front end side of the nozzle piping 18. (FIG. (Refer FIG.6 (b)).

  FIG. 7 is a view showing the nozzle unit 24 together with a part of the hot air pipe 26, and a front view (FIG. 7A), a plan view (FIG. 7B), and a right side view of the nozzle unit 24. (FIG. 7C) is shown. In addition, in FIG.7 (c), a part of nozzle piping 18 is also shown with the dashed-two dotted line. As shown in FIGS. 5 to 7, the nozzle unit 24 is formed as a rectangular parallelepiped member having one end connected to the nozzle pipe 18 and a hollow inside.

  A plurality of large-diameter injection ports 27 having a large opening area and small-diameter injection ports 28 having a small opening area are provided at the end of the nozzle unit 24 formed in a planar shape on the other end side. The large-diameter injection port 27 and the small-diameter injection port 28 inject the compressed air toward the rear side in the crossing portion C, and thereby the compressed air is injected toward the tip of the movable rail 105. An opening is formed at the other end of 24. Further, the large-diameter injection port 27 and the small-diameter injection port 28 are formed so as to inject compressed air on the rear side in the crossing portion C and slightly obliquely downward. Further, the small-diameter injection port 28 is formed so as to be arranged around the large-diameter injection port 27. Further, the large-diameter injection port 27 and the small-diameter injection port 28 are formed at the planar end portion of the nozzle unit 24, and thus are perpendicular to the longitudinal direction of the blade rail 104 between the pair of front opening rail portions 108 and 108. It is spread along a flat surface.

  The nozzle unit 24 has a hot air supply port 30 formed in the lower part thereof, and a hot air passage 31 communicating with the hot air supply port 30 is formed in the nozzle unit 24. The hot air supply port 30 is connected to the hot air pipe 26, and the hot air passage 31 communicates with the hot air pipe 26. Accordingly, the heated air generated by the hot air supply device 25 flows into the hot air passage 31 via the hot air pipe 26. Further, in addition to the large-diameter injection port 27 and the small-diameter injection port 28, a warm air outlet 29 is further provided at the other end of the nozzle unit 24. The warm air outlet 29 communicates with the warm air passage 31 and is formed so as to blow out the heated air toward the rear side in the crossing portion C. In addition, at the end of the nozzle unit 24 where the large-diameter injection port 27, the small-diameter injection port 28, and the warm-air outlet 29 are provided, the hot-air outlet 29 is disposed at the center thereof, and a plurality of large-diameter injection ports 27 and A small-diameter injection port 28 is disposed around the hot air outlet 29. In the nozzle unit 24, a region through which compressed air passes from the nozzle pipe 18 to the large-diameter injection port 27 and the small-diameter injection port 28, and a hot air passage 31 that is a region through which the heated air passes are provided. However, it is comprised in the state partitioned off by the tubular wall part which divides the warm air channel | path 31. FIG.

(Operation of foreign matter removal device)
In the foreign matter removing device 2 described above, the above-described heated air is generated by the hot air supply device 25, and this heated air is supplied to the nozzle unit 24 via the hot air pipe 26, and the crossing section is supplied from the hot air outlet 29. The hot air is blown out toward the rear side in C. This warm air blowing operation is continuously performed when the compressed air injection operation in the nozzle unit 24 is not performed. Further, when the warm air blowing operation is performed, the compressed air is supplied to the sub tank 13 and stored, as in the first embodiment.

  In the state described above, a control device (not shown) issues a switching command for the electromagnetic switching valve 19 based on an operation command signal of various devices such as a point switching signal, and operates the electromagnetic switching valve 19 to compress the electromagnetic switching valve 19. An air injection operation is performed. That is, when the electromagnetic switching valve 19 is switched based on a command from the control device, the compressed air stored in the sub tank 13 flows to the nozzle unit 24 via the nozzle pipe 18. Then, compressed air is injected from the large-diameter injection port 27 and the small-diameter injection port 28 in the nozzle unit 24, and the compressed air falls between the blade rail 104 and the movable rail 105 in the crossing portion C of the track branching unit 100. The foreign matter is blown away to the rear side and removed. When the electromagnetic switching valve 19 is switched for the compressed air injection operation, the fan operation in the hot air supply device 25 is stopped. For this reason, the hot air blowing operation from the hot air outlet 29 is stopped during the compressed air injection operation.

  After the above-described compressed air injection operation is completed, the electromagnetic switching valve 19 is switched, the nozzle pipe 18 is shut off, and the compressed air supplied from the main tank 12 is filled in the sub tank 13 to prepare for the next injection. Will be stored. Further, the operation of the fan of the hot air supply device 25 is started, and the hot air blowing operation is started.

(Effect of foreign matter removal device)
According to the foreign matter removing apparatus 2 described above, foreign matter can be removed between the rails of the crossing portion C of the track branching portion 100 and dropped between the blade rail 104 and the movable rail 105 as in the first embodiment. The removed foreign matter can be removed by blowing away toward the rear side.

  And according to the foreign material removal apparatus 2, since heated air blows off toward the back side in the crossing part C from the nozzle unit 24, in addition to the foreign material removal function using compressed air in the crossing part C by the nozzle unit 24. The snow melting function using heated air can also be achieved. Since the hot air outlet 29 is provided using the nozzle unit 24, the nozzle unit 24 having a compact structure including both a structure for injecting compressed air and a structure for blowing out hot air is disposed in the crossing section C. Thus, foreign matters can be removed.

  Further, according to the foreign matter removing apparatus 2, the warm air outlet 29 is arranged at the center portion at the end of the nozzle unit 24, and the large-diameter injection port 27 and the small-diameter injection port 28 are arranged around it. Therefore, the hot air outlet 29 and the injection ports (27, 28) can be densely arranged without causing interference, and a more compact structure including both a configuration for injecting compressed air and a configuration for blowing out hot air. Nozzle unit 24 can be realized. Further, the hot air outlet 29 that blows out the heated air is required to have a larger diameter than the injection ports (27, 28) that inject the compressed air, but since the hot air outlet 29 is disposed in the center portion, The hot air outlet 29 having a larger diameter can be easily formed.

  Further, according to the foreign matter removing apparatus 1, since the nozzle unit 24 is formed in a rectangular parallelepiped shape, the space between the pair of front open rail portions 108 and 108 in the wing rail 104 is effectively utilized, and the nozzle having a larger volume. A unit 24 can be formed. For this reason, it is possible to realize the nozzle unit 24 that easily secures a region through which compressed air passes and a region through which heated air passes.

[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 the present embodiment, the case where the configuration for injecting compressed air is arranged not only in the crossing portion of the track branching portion but also in the front portion has been described as an example. The structure which injects compressed air may be the foreign material removal apparatus provided only in the crossing part. Further, it may be configured independently of the configuration in which the compressed air is injected at the front portion of the track branching portion.

(2) The form of the nozzle unit is not limited to that illustrated in the present embodiment, and various modifications can be made. FIG. 8 and FIG. 9 are diagrams for explaining a modified example of the nozzle unit, and FIG. 8A and FIG. 9A are FIG. 3A and FIG. 2A of the first embodiment. Fig. 8 (b) and Fig. 9 (b) correspond to Fig. 3 (b) of the first embodiment and Fig. 6 (b) of the second embodiment. FIG. In FIGS. 8 and 9, the same components as those in the first and second embodiments are denoted by the same reference numerals, and the description thereof is omitted.

  In the nozzle unit 32 according to the modification shown in FIG. 8, a plurality of nozzle members 33 are provided for the main body member of the nozzle unit 32. The plurality of nozzle members 33 are each provided with an injection port formed so as to inject compressed air toward the rear side in the crossing portion C. The plurality of nozzle members 33 are arranged concentrically in the nozzle unit 32, whereby the injection ports provided in each of the plurality of nozzle members 33 are also arranged concentrically. Thus, the nozzle unit of the structure provided with the nozzle member in which each injection port was formed can also be implemented.

  In the nozzle unit 34 according to the modification shown in FIG. 9, a plurality of injection ports 35 formed so as to inject compressed air toward the rear side in the crossing portion C are provided so as to be arranged horizontally. It has been. In this way, the compressed air is jetted from the jet nozzles 35 arranged horizontally, so that the compressed air spreads in the horizontal direction and flows in the region between the pair of front opening rail portions 108 and 108. For this reason, it is possible to efficiently arrange a smaller number of injection ports 35 to remove foreign matters.

  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 1st Embodiment of this invention, and this foreign material removal apparatus. It is a top view which shows the wing rail in the crossing part of the track branch part shown in FIG. 1, and the area | region of the vicinity. FIG. 3 is a partially enlarged view in FIG. 2 and a cross-sectional view taken along line EE in FIG. 2. It is the front view which shows the nozzle unit shown in FIG. 3, a top view, and a right view. It is a top view which shows the wing rail in the crossing part of the track branch part in which the foreign material removal apparatus of the track branch part which concerns on 2nd Embodiment of this invention was provided, and the area | region of the vicinity. 6 is a partially enlarged view of FIG. 5 and a cross-sectional view taken along the line GG of FIG. It is the front view which shows the nozzle unit shown in FIG. 6, a top view, and a right view. It is a figure which shows the modification of a nozzle unit. It is a figure which shows the modification of a nozzle unit.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Foreign matter removal apparatus 11 of track branch part Air source apparatus 14 Nozzle unit 22 Large diameter injection port 23 Small diameter injection port 100 Track branch part 101 Basic rail 102 Tongue rail 104 Wing rail 105 Movable rail C Crossing part

Claims (7)

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,
Located in the crossing part, which is located on the rear side opposite to the front part on the front side where the basic rail and the tongrel can come into contact with each other at the track branch part, and injects compressed air A nozzle unit to
An air source device for supplying compressed air to the nozzle unit;
With
The nozzle unit is disposed on the front side of the crossing part, and is provided with an injection port having an opening formed to inject compressed air toward the rear side of the crossing part. Foreign matter removal device. The foreign matter removing apparatus for a track branching portion according to claim 1,
The nozzle unit is located at a portion where the rails intersect at the crossing portion and between a pair of front open rail portions extending so as to open toward the front side in a wing rail formed in a shape opened in the front-rear direction. A track branch that is arranged and injects compressed air toward a pair of rear open rail portions that extend so as to open rearward in the wing rail toward a movable rail that can contact and be separated from the inside. Foreign matter removal device. The foreign matter removing device for a track branching portion according to claim 2,
A plurality of the injection ports are provided, and are arranged so as to extend along a plane perpendicular to the longitudinal direction of the wing rail between the pair of front opening rail portions, and the foreign matter of the track branching portion Removal device. The foreign matter removing device for a track branching portion according to any one of claims 1 to 3,
A foreign matter removing device for a track branching section, wherein a plurality of the injection ports are provided and are arranged concentrically in the nozzle unit. The foreign matter removing device for a track branching portion according to any one of claims 1 to 4,
The foreign matter removing device for a track branching portion is characterized in that the injection port is formed so as to inject compressed air rearward and obliquely downward in the crossing portion. The foreign matter removing device for a track branching portion according to any one of claims 1 to 5,
A hot air supply device for supplying heated air heated and heated to the nozzle unit;
The nozzle unit is further provided with a warm air blowout opening formed so as to blow out the heated air toward the rear side of the crossing portion. The foreign matter removing device for a track branching portion according to claim 6,
At the end of the nozzle unit where the injection port and the hot air outlet are provided, the hot air outlet is arranged at the center of the end, and a plurality of the injection ports are arranged around the hot air outlet. A foreign matter removing device for a track branching section, characterized in that

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