JP3794878B2 - Railroad ballast exchange system and ballast exchange method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a roadbed ballast exchanging system and a ballast exchanging method for use in railway track maintenance work.
[0002]
[Prior art]
As a method for exchanging the ballast laid under the sleepers that support the rail, conventionally, a first working method shown in FIG. 5 and a second working method shown in FIG. 8 are known.
[0003]
In the first work method, a first work train 1 for scraping the ballast B and a second work train 2 loaded with a new ballast NB are prepared. These first and second works Each of the trains 1 and 2 stands on the same track 3 in one train.
[0004]
The first work train 1 has a low speed by pulling the ballast work vehicle 4 for scraping the ballast B, a plurality of hopper vehicles 5a and 5b for loading the ballast B, and the ballast work vehicle 4 and the hopper vehicles 5a and 5b. It is comprised with the track motor car 6 which travels by.
[0005]
The ballast work vehicle 4 is located at the rearmost part of the first work train 1, and a ballast scraping device 8 is installed at the rear part of the vehicle body. As shown in FIG. 6, the ballast scraping device 8 is equipped with a cutter 11 guided under a sleeper 10 that supports two rails 9a and 9b. The cutter 11 has an endless cutter link 12 extending in a direction orthogonal to the rails 9a and 9b, and a large number of scrapers 13 disposed on the side surfaces of the cutter link 12 with a space therebetween. The cutter link 12 is continuously rotated in the direction of the arrow by the power transmission from the motor 14 below the sleeper 10, so that the ballast B under the sleeper 10 is connected to the track 9 a, It is scraped to the side of 9b.
[0006]
The ballast B scraped off by the ballast scraping device 8 is conveyed to the upper side of the ballast work vehicle 4 via the first carry-out conveyor 15, and the second carry-out conveyor 16 disposed on the upper part of the ballast work vehicle 4. Is conveyed toward the rearmost hopper vehicle 5b.
[0007]
As shown in FIG. 5, the hopper cars 5a and 5b have a loading platform 18 on which the ballast B is loaded, and main conveyors 19a and 19b and delivery conveyors 20a and 20b are mounted on the loading platform 18 of the hopper cars 5a and 5b, respectively. ing. The main conveyors 19a and 19b are disposed at the bottom of the loading platform 18, and extend horizontally along the traveling direction of the hopper cars 5a and 5b. The delivery conveyors 20a and 20b are located at the discharge ends of the main conveyors 19a and 19b, and the loading platforms of the adjacent hopper cars 5a and 5b.18It is arrange | positioned so that it may straddle between.
[0008]
Accordingly, the first work train 1 advances at a low speed in a direction away from the excavation portion 21 where the ballast B has been scraped off while scraping the ballast B below the sleeper 10 via the ballast scraping device 8. It is supposed to be. The scraped ballast B is transferred to the loading platform 18 of the rearmost hopper vehicle 5b via the first and second carry-out conveyors 15 and 16, and from here forward via the main conveyor 19b and the delivery conveyor 20b. Are sequentially loaded onto the loading platform 18 of the hopper vehicle 5a.
[0009]
The second work train 2 includes a plurality of hopper cars 23 a and 23 b and a track motor car 24 that pushes the hopper cars 23 a and 23 b toward the excavation portion 21. The hopper cars 23a and 23b have a loading platform 25 on which a new ballast NB to be replaced is loaded. Main conveyors 26a and 26b and delivery conveyors 27a and 27b are mounted on the loading platform 25, respectively. The main conveyors 26a and 26b are disposed at the bottom of the loading platform 25 and extend horizontally along the traveling direction of the hopper cars 23a and 23b. The delivery conveyors 27a and 27b are located at the discharge ends of the main conveyors 26a and 26b, and are the loading platforms of the adjacent hopper cars 23a and 23b.25It is arrange | positioned so that it may straddle between.
[0010]
The second work train 2 moves to the excavation part 21 after the scraping work of the ballast B by the first work train 1 is finished, and the new ballast NB loaded on the hopper cars 23a and 23b is the first hopper car. The excavated portion 21 is fed through the delivery conveyor 27a of 23a. At this time, the new ballast NB mounted on the rearmost hopper vehicle 23b is sequentially transferred to the loading platform 25 of the front hopper vehicle 23a via the main conveyor 26b and the delivery conveyor 27b, and excavated from here through the delivery conveyor 27a. The portion 21 is inserted.
[0011]
On the other hand, in the second work method shown in FIG. 8, a first work train 31 for scraping off the ballast B, a second work train 32 for loading the scraped ballast B, and a new ballast NB. A loaded third work train 33 is prepared. The first work train 31 and the third work train 33 are waiting on the same track 34, and the second work train 32 is waiting on another adjacent track 35.
[0012]
The first work train 31 includes a ballast work vehicle 37 that scrapes off the ballast B, and a track motor car 6 that pulls the ballast work vehicle 37 and travels at a low speed. The ballast work vehicle 37 is equipped with a ballast scraping device 8 at the front end facing the track motor car 6. The ballast B scraped off by the ballast scraping device 8 is carried out from the first carry-out conveyor 15 to the second work train 32 waiting on the adjacent track 35 via the second carry-out conveyor 16. Is done.
[0013]
  The second work train 32 includes a plurality of truck cars 38a to 38c and two track motor cars 39a and 39b connected to the front and rear of the truck cars 38a to 38c. Each of the trucks 38 a to 38 c has an empty loading platform 40, and the ballast B is loaded on the loading platform 40 through the second carry-out conveyor 16. When the loading platform 40 of one trolley car 38a is filled with the ballast B, the trolley cars 38a to 38c are moved by the track motor cars 39a and 39b, and the next trolley car 38b or38cBallast B is sequentially loaded onto the cargo bed 40 of the car.
[0014]
The third work train 33 is connected to a plurality of hoki cars 42 a to 42 c and front and rear of the hoki cars 42 a to 42 c, and two track motors that move the hoki cars 42 a to 42 c toward the excavation part 21. Cars 43a and 43b are included. The hoki wheels 42 a to 42 c have a loading platform 44 having a hopper function, and a new ballast NB is loaded on the loading platform 44.
[0015]
The third work train 33 moves to the excavation part 21 after the scraping work of the ballast B by the first work train 31 is completed, and a new ballast NB is excavated from the loading platform 44 of the hoki cars 42a to 42c. It is thrown into.
[0016]
By the way, in this second working method, since the ballast scraping device 8 of the ballast working vehicle 37 is located at the front of the vehicle body, the ballast working vehicle is moved over the excavated portion 21 as the scraping of the ballast B proceeds. 37 passes. Therefore, in carrying out the second work method, after scraping off the ballast B, the operator inserts a number of sleeper support bases 46 as shown in FIG. The rails 9 a and 9 b are prevented from sinking due to the weight of the ballast work vehicle 37 by supporting the sleepers 10 with 46.
[0017]
[Problems to be solved by the invention]
In the conventional first work method, two trains of a first work train 1 for scraping and loading the ballast B and a second work train 2 loaded with a new ballast NB to be replaced are required. Therefore, the first and second work trains 1 and 2 must be operated individually. For this reason, there is a problem that a large number of personnel are required for the replacement work of the ballast B, and the cost increases.
[0018]
The second work train 2 loaded with the new ballast NB moves to the excavation portion 21 on the track 3 after the scraping work of the ballast B by the first work train 1 is completed. There is a problem that it takes time to replace the second work trains 1 and 2 and the work time required for ballast replacement becomes long.
[0019]
On the other hand, according to the conventional second working method, since the ballast B scraped off by the ballast working vehicle 37 is loaded on the trolley cars 38a to 38c waiting on the adjacent track 35, the two tracks 34 and 35 are connected. The work needs to be blocked, which may interfere with the operation of the railway vehicle.
[0020]
Further, in this second work method, in order to prevent the rails 9a and 9b from sinking, the sleeper support 46 must be manually inserted into the excavation portion 21 of the trace where the ballast B has been scraped. Moreover, when the new ballast NB is put into the excavation portion 21, these sleeper support bases 46 need to be manually removed from the excavation portion 21. Therefore, there is a problem that the work man-hours increase as much as the sleeper support 46 is put in and out, and a great amount of labor and labor are required for the ballast exchange work, and the work time required for the exchange of the ballast B becomes longer.
[0021]
Furthermore, even in the second work method, the first to third work trains 31 to 33 must be operated individually, so that the ballast B replacement work itself becomes large-scale and More work is required than in the first work method, and there remains a problem in terms of cost.
[0022]
In addition, since the third work train 33 loaded with the new ballast NB moves to the excavation portion 21 on the track 34 after the scraping work of the ballast B by the first work train 31 is completed, the first work train 33 described above. As in the above work method, it takes time to replace the first and third work trains 31 and 33, and ballast exchange cannot be performed efficiently.
[0023]
The present invention has been made based on such circumstances, and it is possible for railways to efficiently and surely perform this replacement work and reduce the work time while reducing the number of personnel and vehicles required for the ballast replacement work. The purpose is to provide a ballast exchange system and a ballast exchange method.
[0024]
[Means for Solving the Problems]
  In order to achieve the above object, a road bed ballast exchange system for railways according to the present invention includes:
  A plurality of transport vehicles loaded with new ballasts and connected to each other, and a ballast work vehicle having a recovery means connected to the last transport vehicle and scraping off the ballast laid under the sleepers supporting the rails. It consists of one knitting and runs along the railsHas a working train.
  The ballast work vehicle throws in the new ballast to the excavation part of the unloading means for unloading the ballast scraped off by the collecting means toward the last transport vehicle and the trace of the ballast scraped off.With discharge endInput means,
  the aboveeachThe transport vehicleUnloading meansFirst conveying means for sequentially sending the ballast unloaded by the rearmost transport vehicle toward the frontmost transport vehicle;To the transport vehicleSecond conveying means for sending the new loaded ballast to the loading means of the ballast work vehicle via the last transport vehicle;Have.
  The second transport means of the transport vehicle sequentially transports the ballast transported to the transport vehicle at the foremost part via the first transport means to the transport vehicle after that, and the recovery means and the The discharge end of the input means should be located at the end of the ballast work vehicle.It is characterized by.
[0025]
  In order to achieve the above object, the ballast replacement method according to the present invention includes:
  Collecting means to scrape ballast laid under sleepers that support the railAnd aboveInsert new ballast into the excavated part of the trace where the ballast has been scrapedA ballast working vehicle including throwing means having a discharge end; and a plurality of transport vehicles loaded with a new ballast to be replaced and connected to each other in front of the ballast working vehicle, the collecting means and the throwing means Prepare a work train consisting of a single formation with the discharge end of the ballast work vehicle located at the end of the ballast work vehicle,
  The ballast scraped off by the collecting means of the above ballast work vehicle,Sequential transport from the last transporter to the front transporterIn addition, the ballast transported to the foremost transport vehicle is sequentially transferred to the subsequent transport vehicle, and the new ballast loaded on the transport vehicle is transferred to the ballast work vehicle via the last transport vehicle. To supply
  One organization aboveConsist ofOn the working trainOn this working trainIt is characterized by replacing the newly loaded ballast with the scraped ballast.
[0026]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to FIGS.
[0027]
FIG. 1 schematically shows a work train 51 composed of one train used when the ballast B is exchanged. The work train 51 includes a ballast work vehicle 52, five hopper vehicles 53a to 53e as transport vehicles, and two track motor cars 54a and 54b that pull the ballast work vehicle 52 and the hopper vehicles 53a to 53e. It stands by on the track 50 which is comprised by and should perform track maintenance work.
[0028]
The ballast work vehicle 52 is located at the rearmost part of the work train 51. The ballast work vehicle 52 is equipped with a ballast scraping device 56 as ballast collecting means and first and second carry-out conveyors 57a and 57b as carry-out means. The ballast scraping device 56 is installed at the rear part of the vehicle body of the ballast work vehicle 52. Since this ballast work vehicle 52 has the same configuration as that of the conventional ballast scraping device 8, detailed description thereof is omitted.
[0029]
The ballast B scraped off by the ballast scraping device 56 is carried out toward the upper part of the body of the ballast work vehicle 52 via the first discharge conveyor 57a, and the first carry-out conveyor 57a from the first carry-out conveyor 57a in the upper part of the body. 2 to the carry-out conveyor 57b. The second carry-out conveyor 57b is connected to the rearmost hopper car 53e at the upper part of the body of the ballast work vehicle 52.TowardsIt extends.
[0030]
Further, the ballast work vehicle 52 has a loading conveyor 58 as loading means. The input conveyor 58 is disposed below the second carry-out conveyor 57 b and is disposed substantially horizontally along the traveling direction of the ballast work vehicle 52. The discharge end of the charging conveyor 58 protrudes rearward of the ballast scraping device 56 above the ballast scraping device 56.
[0031]
Each of the hopper cars 53 a to 53 e has a loading platform 60. The loading platform 60 of the foremost hopper vehicle 53a is empty for loading the scraped ballast B, whereas the loading platforms 60 of the remaining four hopper vehicles 53b to 53e are replaced with new ones to be replaced. Ballast NB is loaded.
[0032]
On the loading platform 60 of each hopper vehicle 53a to 53e, a first belt conveyor 61 as first conveying means and second and third belt conveyors 62 and 63 as second conveying means are mounted. Yes.
[0033]
As best shown in FIG. 2, the first belt conveyor 61 is divided into a receiving conveyor 61a and a discharging conveyor 61b. The conveyors 61a and 61b are installed on the upper part of the loading platform 60 via a stay 64 that extends upward. And the conveyors 61a and 61b are arranged in a line at the upper part of the loading platform 60, and are driven from the rear of the work train 51 to the front.
[0034]
The receiving side conveyor 61a and the discharging side conveyor 61b are inclined upward as they proceed from the receiving side along the conveying direction of the ballast B to the discharging side, and the receiving side conveyor 61b receives the discharging side conveyor 61b below the discharging end of the receiving side conveyor 61a. The edge is located. And between the adjacent hopper cars 53a to 53e, the discharge end of the discharge side conveyor 61b is located above the reception end of the reception side conveyor 61a, and in the hopper car 53e at the rearmost part, The receiving end of the receiving side conveyor 61 a is positioned below the discharging end of the second carry-out conveyor 57 b of the ballast work vehicle 52.
[0035]
Therefore, the ballast B scraped by the ballast scraping device 56 is transferred from the second carry-out conveyor 57b to the first belt conveyor 61 of the rearmost hopper car 53e, and sequentially forward hopper cars 53a to 53d. The first belt conveyor 61 is conveyed to the loading platform 60 of the foremost hopper vehicle 53a.
[0036]
The 2nd belt conveyor 62 is arrange | positioned at the bottom part of the loading platform 60, and is extended horizontally along the running direction of the hopper cars 53a-53e. The second belt conveyors 62 are driven from the front to the rear of the work train 51, and the discharge ends of the second belt conveyors 62 are the rear parts of the loading platforms 60 of the hopper cars 53a to 53e. Is located.
[0037]
The third belt conveyor 63 extends obliquely upward as it goes backward from the rear part of the loading platform 60, and is driven from the front of the work train 51 toward the rear following the second belt conveyor 62. It has become. The discharge end of the third belt conveyor 63 is located above the front part of the loading platform 60 of the rear hopper cars 53b to 53e, and the third belt conveyor 62 is provided in the rearmost hopper car 53e. Is disposed above the receiving end of the input conveyor 58.
[0038]
Therefore, the new ballast NB loaded on the loading platform 60 of the hopper cars 53b to 53e is sequentially sent to the loading platform 60 of the rearmost hopper truck 53e via the second and third belt conveyors 62 and 63. From here, it is transferred to the input conveyor 58 of the ballast work vehicle 52.
[0039]
The track motor cars 54a and 54b are located at the head of the work train 51, and pull the ballast work vehicle 52 and the hopper cars 53a to 53e at a constant speed via a constant low speed traveling device (not shown). Therefore, the work train 51 is moved at a low speed in a direction away from the excavation portion 21 of the trace of the ballast B scraped off.
[0040]
The track motors 54a and 54b have a cab 66 and a centralized monitoring room 67 as shown in FIG. In the centralized monitoring room 67, a plurality of monitoring monitors 68 are arranged, and through this monitoring monitor 68, the scraping and charging status of the ballast B, the conveying status of the ballast B sent by the first belt conveyor 61, and The conveyance status of the new ballast NB sent by the second belt conveyor 62 can be monitored.
[0041]
More specifically, as shown in FIG. 1, a color camera 70 is installed at the rear end of the ballast work vehicle 52 to photograph the scraping state and the loading state of the ballast B. Yes. Similarly, a color camera 71 for photographing the loading platform 60 from above is installed at the discharge end of the discharge side conveyor 61b of each of the hopper cars 53a to 53e. Video signals photographed by these color cameras 70 and 71 are sent to a transceiver 74 via a screen dividing controller 72 and a controller 73 as shown in FIG. Sent from
[0042]
A lighting device 76 for illuminating the work place for scraping the ballast B and the conveying path of the ballast B is installed on the rear part of the body of the ballast work vehicle 52 and the loading platform 60 of each of the hopper cars 53a to 53e. Is made uniform.
[0043]
The monitoring monitor 68 of the centralized monitoring room 67 is connected to a transmitter / receiver 79 via a controller 78. The antenna 80 of the transmitter / receiver 79 receives a video signal transmitted from the antenna 75 of the transmitter / receiver 74, whereby the monitoring monitor 68 is scraped and thrown in the ballast B, and the ballast B is conveyed. An image showing the state is displayed.
[0044]
In this case, the monitoring monitor 68 includes a liquid crystal display 80 that displays a four-part monitoring video and an operation display 81 that employs a touch panel method. By pressing the screen of the operation display 81 with a fingertip, The monitoring video displayed on the liquid crystal display 80 can be switched.
[0045]
Next, an operation procedure when replacing the ballast B of the track 50 will be described.
[0046]
First, the work train 51 is moved, and the last ballast work vehicle 52 is positioned at the ballast exchange place on the track 50. Then, while rotating the ballast scraping device 56, the ballast scraping device 56 is driven under the sleepers 10 from the sides of the tracks 9a and 9b, and the ballast scraping device 56 is shifted to a working posture orthogonal to the tracks 9a and 9b. .
[0047]
In this state, when the work train 51 is moved forward at a low speed, the ballast B below the sleepers 10 is sequentially scraped, and the scraped ballast B is passed through the first and second carry-out conveyors 57a and 57b. To the first belt conveyor 61 of the rearmost hopper car 53e, and sequentially from here to the loading platform 60 of the frontmost hopper car 53a via the first belt conveyor 61 of the front hopper cars 53a to 53d. It is conveyed. Accordingly, the scraped ballast B is once loaded on the loading platform 60 of the foremost hopper wheel 53a.
[0048]
On the other hand, simultaneously with scraping off the ballast B, a new ballast NB loaded on the rearmost hopper vehicle 53e is fed into the charging conveyor 58 of the ballast work vehicle 52 via the second belt conveyor 62 and the third belt conveyor 63. Moved to. This new ballast NB is thrown into the excavation portion 21 where the ballast B has been scraped off via the throwing conveyor 58. The new ballast NB loaded on the intermediate hopper cars 53b to 53d is sequentially sent to the rear hopper cars 53c to 53e through the second belt conveyor 62 and the third belt conveyor 63 of each loading platform 60. Similarly, it is thrown into the excavation part 21 via the loading conveyor 58 of the ballast work vehicle 52.
[0049]
The ballast B loaded on the foremost hopper car 53a is sequentially sent to the front hopper cars 53b to 53e via the second belt conveyor 62 and the third belt conveyor 63. Therefore, as ballast B replacement work progresses, new ballast NB is sent out from the loading platform 60 of the hopper cars 53b to 53e, and the ballast B scraped off from these loading platforms 60 is loaded. The new ballast NB loaded in the train train 51 is replaced with the scraped ballast B.
[0050]
In addition, during the ballast exchange operation, the scraping and loading status of the ballast B and the transfer status of the ballast B are taken one by one by the color cameras 70 and 71, and this video signal is collected in the centralized monitoring room of the orbital motor cars 54a and 54b. 67 and displayed on the monitor 68. Therefore, the supervisor can collectively monitor the scraping status of the ballast B and the conveyance status of the ballast B in the centralized monitoring room 67 of the work train 51, and an abnormality occurs in the scraping operation and the charging operation of the ballast B. If an abnormality occurs in the ballast B conveyance status, this can be recognized immediately. Therefore, in the event of an emergency in which an abnormality is recognized, it is possible to quickly take action such as emergency stop of the ballast scraping device 56 and various conveyors 57a, 57b, 58, 61, 62, 63 and sounding an alarm.
[0051]
According to such a ballast exchange operation, the ballast B under the sleeper 10 is scraped off, and at the same time, the new ballast loaded on the hopper cars 53b to 53e on the excavation portion 21 where the ballast B has been scraped off. NB can be input. Therefore, after scraping off the ballast B, it is possible to immediately shift to the track maintenance work using the new ballast NB, and the deviation of the track 50 is minimized.Hold downThe ballast replacement work can be performed in a short time.
[0052]
  At the same time, the ballast scraping device 56 of the ballast work vehicle 52 is used.And the discharge end of the input conveyor 58Is located at the rear of the car bodyAs well asThe work train 51 does not pass above the excavation portion 21 because the work train 51 moves in a direction away from the excavation portion 21 where the ballast B has been scraped off. For this reason, the troublesome and troublesome work of inserting a sleeper support in the excavation part 21 and taking out the sleeper support when a new ballast NB is inserted is unnecessary, and the number of work steps is reduced accordingly. Thus, the work time can be shortened.
[0053]
In addition, a series of steps from scraping the ballast B to introducing a new ballast NB can be continuously performed by a single work train 51. For this reason, it is not necessary to replace the work train for scraping and the work train for input as in the conventional case, which also contributes to shortening the work time and does not hinder the operation of the railway vehicle. .
[0054]
Moreover, since the work train 51 is a single train, the number of track motor cars 54a and 54b and hopper cars 53a to 53e can be reduced, especially in comparison with the conventional second work method. The number of personnel required for operation can be reduced. For this reason, there is an advantage that a large-scale operation in which two adjacent lines are blocked is unnecessary, and the cost required for ballast replacement can be reduced.
[0055]
【The invention's effect】
According to the present invention described in detail above, since the ballast under the sleeper is scraped off, and at the same time, a new ballast can be introduced into the excavated portion of the trace where the ballast has been scraped, so that the track maintenance work using the new ballast is immediately performed. This is possible, and the work time required for ballast replacement can be greatly shortened while minimizing rail misalignment.
[0056]
At the same time, since the work train does not pass through the excavated part where the ballast has been scraped off, a sleeper support is inserted into the excavated part as before, or a sleeper support is taken out when a new ballast is inserted. The troublesome and time-consuming work can be omitted, and accordingly, the number of work steps can be reduced and the work time can be further shortened.
[0057]
Moreover, since a series of steps from scraping the ballast to throwing in the new ballast can be performed continuously by a single train, it is necessary to replace the scraping work train with the loading train as in the past. This also contributes to shortening the working time and does not hinder the operation of the railway vehicle.
[0058]
Moreover, since the work train is a single train, it is possible to reduce the number of personnel and vehicles required to operate the work train. Therefore, there is an advantage that a large-scale operation in which two adjacent lines are blocked is unnecessary, and the cost required for ballast replacement can be reduced.
[Brief description of the drawings]
FIG. 1 is a side view schematically showing formation of a work train according to an embodiment of the present invention.
FIG. 2 is a side view of a hopper vehicle having first to third belt conveyors.
FIG. 3 is a plan view schematically showing a driver's cab and a central monitoring room in a cabin of an orbital motor car.
FIG. 4 is a block diagram schematically showing a centralized monitoring system.
FIG. 5 is a side view schematically showing formation of first and second work trains used in the conventional first work method.
FIG. 6 is a perspective view showing a conventional ballast scraping device for a ballast work vehicle.
FIG. 7 is a cross-sectional view showing a state in which ballast under a sleeper is scraped off by a ballast scraping device.
FIG. 8 is a side view schematically showing formation of first to third work trains used in the second conventional work method.
[Explanation of symbols]
9a, 9b ... Rail
10 ... sleepers
21 ... excavation part
51 ... Work train
52. Ballast work vehicle
53a-53e ... Transport vehicle (hopper vehicle)
56. Ballast collecting means (ballast scraping device)
57a, 57b ... Unloading means (first unloading conveyor, second unloading conveyor)
58 ... Loading means (loading conveyor)
61... First conveying means (first belt conveyor)
62, 63 ... second conveying means (second belt conveyor, third belt conveyor)

Claims (4)

A system for exchanging ballast laid under sleepers that support rails,
The rail includes a plurality of transport vehicles loaded with new ballasts and connected to each other, and a ballast work vehicle connected to the rearmost transport vehicle and having a collecting means for scraping off the ballast. With a working train that runs along
The ballast work vehicle has a discharge means for discharging the ballast scraped by the recovery means toward the last transport vehicle, and a discharge end for introducing a new ballast to the excavation portion of the trace where the ballast has been scraped. and a dosing means having,
Each truck is finally a first conveying means for successively sending toward the cart of foremost the ballast is unloaded by the unloading means from truck rearmost, new ballast stacked above truck Second conveying means for sending to the charging means of the ballast work vehicle via a part of the transport vehicle,
The second transport means of the transport vehicle sequentially transports the ballast transported to the transport vehicle at the foremost part via the first transport means to the transport vehicle after that, and the recovery means and the The railroad floor ballast exchange system for railways , wherein the discharge end of the input means is located at the rearmost part of the ballast work vehicle . 2. The vehicle according to claim 1, wherein each of the transport vehicles includes a loading platform on which a ballast is loaded, the first transporting unit is disposed at an upper portion of the loading platform, and the second transporting unit is disposed on the loading platform. A railroad ballast exchange system for railways, which is arranged at the bottom . The railroad floor ballast exchange system according to claim 1, wherein the work train includes a tow vehicle that travels by towing a transport vehicle and a ballast work vehicle. Ballast working car including dosing means having a discharge end for introducing new ballast into the recovery means and drilling portion of the ballast is scraped traces scrape laid ballast under the sleepers supporting the rails, the new ballast And a plurality of transport vehicles connected to each other in front of the ballast work vehicle, and the collection means and the discharge end of the input means are composed of one formation positioned at the rearmost part of the ballast work vehicle. Prepare a working train,
The ballast scraped off by the collecting means of the ballast work vehicle is sequentially transported from the last transport vehicle toward the front transport vehicle , and the ballast transported to the front transport vehicle is sequentially transported to the subsequent transport vehicle. The new ballast loaded on the transport vehicle is supplied to the input means of the ballast work vehicle via the last transport vehicle.
Among the work train consisting of the single knitting, railway track bed ballast exchange method characterized by replacing the ballast scraped and new ballast stacked in this work train.

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