JP2000290904A - Ballast exchanger - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve safety and work efficiency of exchanging work by a ballast exchanger. SOLUTION: A movable underframe 3 is mounted on a fixing underframe 2 of a bogie 1 through a sliding device 7, and a trough 4 is supported with the movable underframe 3. A tip end of the trough 4 is arranged in a rear part apart from rear wheels RW of the bogie, and in intermediate stay is connected with the tip of the trough to scrape out the ballast 23 in rear part apart from the rear wheels RE by a scraper chain 9.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ballast changer which scrapes an old ballast on a track bed and carries it out while moving on a railroad track.

[0002]

2. Description of the Related Art When a ballast ballast of a railway track becomes old, it breaks or becomes solidified due to mixing of earth and sand. Therefore, it is necessary to remove fine earth and sand through a sieve or replace it with a new ballast.

[0003] In order to perform the work efficiently during a time when the train is suspended, a ballast changer (a changer with a sieve is called a ballast cleaner) is used.

In this ballast changer, an intermediate stay is installed under a sleeper across a roadbed, and troughs extending forward and downward from both sides of a bogie on a rail toward both sides of the roadbed are provided at both ends of the intermediate stay. The front end is connected, the scraper chain runs along the left and right troughs and the intermediate stay to scrape out the old ballast on the roadbed, guides the ballast to the conveyor through the trough, and carries it out to a nearby waiting wagon.

FIG. 4 shows a conventional example of the ballast changer. In the figure, reference numeral 1 denotes a truck traveling on the rail 21 and reference numeral 4 denotes a trough. Similar troughs are provided on other sides of the truck. An intermediate stay (not shown) is connected to the tips of these troughs. In the trough, a scraper chain (also not shown) for running along the intermediate stay is passed. FIG. 10 shows the driving device of the scraper chain.
Is a conveyor for carrying out the ballast discharged from the trough 4.

[0006]

In the conventional ballast changer, the tip of the trough 4, that is, the excavated portion is arranged at the foremost portion of the bogie 1 as shown in FIG. Therefore, during work,
As shown in the figure, the lower ballast is removed and the carriage 1 is supported by the rails 21 floating in the air, and the instructions of the carriage become unstable, causing a problem in security.

Further, in this state, the rail 21 sinks due to the weight of the truck 1, so that the position of the truck is out of order and the excavation depth of the ballast 23 fluctuates, resulting in an undesirable result.

Therefore, under the sleepers 22 floating in the air, wedge-shaped spacers (this is called packing and is used by alternately stacking a plurality of spacers in opposite directions) are used to stop the rail from sinking. Although the method has been adopted, the mounting of the spacer involves danger because it is performed near the ballast excavation part as the work proceeds. Further, after the ballast has been scraped out, the following work vehicle inserts a new ballast into the roadbed, and it is necessary to remove the spacer after the new ballast is thrown in, so that the work of mounting and removing the spacer increases.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems and to improve the safety of the replacement work by the ballast changer and improve the work efficiency.

[0010]

In order to solve the above-mentioned problems, according to the first invention, at both ends of an intermediate stay installed across a track bed under a sleeper of a railway line, from both sides of a bogie on the railway line. Connect the tip of the trough that extended forward and down,
In a ballast changer that scrapes out the old ballast of the roadbed with a scrape patien that runs along the trough and the intermediate stay, and carries it out through the trough, the ballast excavation part, that is, the tip of the intermediate stay and the trough, the rear wheel and the rail of the bogie It was located behind the point of contact with the

Further, in the second invention, an auxiliary wheel for supporting the bogie is provided between the center of gravity of the bogie and the rear wheel, and the tip of the intermediate stay and the trough is moved from the contact point between the auxiliary wheel and the rail. Was also placed behind.

In the replacement machine according to the first aspect of the present invention, a movable underframe and a slide device for displacing the underframe rearward are provided at a rear portion of the carriage, and the driving device for the trough and the scraper chain is supported by the movable underframe. preferable. The replacement machine of the second invention is also
Similarly, a movable frame that is displaced rearward by the slide device can be provided, and the trough can be supported by the movable frame. Further, it is preferable that the replacement machine according to the second aspect of the invention includes an elevating mechanism for lifting the auxiliary wheels from above the rails.

[0013]

In the ballast changer according to the first aspect of the invention, the old ballast is scraped behind the rear wheel of the truck, so that the rail supporting the truck does not float in the air. Therefore, it is not necessary to prevent the rail from settling using the spacer, and the ballast excavation depth does not change due to the settling of the rail.

In the ballast changer of the second invention, the front wheels and the auxiliary wheels of the bogie are supported by the rails at the position where the old ballast is present, so that the same operation and effect as described above can be obtained.

In the ballast changer that moves on the track, the length of the bogie from the front and rear wheels is restricted during forward and backward traveling, and it is necessary to fit the rear end of the trough within the restricted range. Therefore, when the ballast excavated portion is moved to the rear side of the bogie, the length of the trough is inevitably reduced, and the inclination of the trough is steep, making it difficult for the scrape chain to take in the ballast smoothly.

A structure in which a movable frame is provided on a truck, a trough is attached to the frame, and the trough is displaced rearward together with the frame during work is effective as a solution to this problem. Extremely short lengths can be avoided and good ballast uptake can be maintained.

According to the ballast changer of the second invention, the ballast excavation portion can be arranged on the front side of the rear wheel of the bogie, so that the inclination of the trough can be made smaller than that of the changer of the first invention.
Even without the above-mentioned movable underframe, good ballast take-in performance can be ensured. In addition, the vehicle equipped with the auxiliary wheel elevating mechanism can raise the auxiliary wheels from the rails, and does not hinder traveling during forwarding.

[0018]

1 and 2 show an embodiment of a ballast changer according to the first invention. In the drawing, reference numeral 1 denotes a bogie traveling on the rail 21. Left and right troughs 4 and 5 extend rightward and downward from the movable underframe 3 provided at the rear part of the carriage 1 to reach both sides of the roadbed 20. Numeral 6 denotes an elevating cylinder which raises the leading ends of the troughs 4 and 5 to a position where there is no hindrance during normal running of the bogie 1, and 7 slides a movable frame provided between the fixed frame 2 and the movable frame 3 of the cart. Device.

Reference numeral 22 denotes a railroad sleeper. An intermediate stay 8 is inserted into the trackbed 20 across the trackbed below the sleeper 22, and the ends of the troughs 4 and 5 are provided on both sides of the intermediate stay 8. To join.

Further, an endless scraper chain (which is a roller chain with a number of scrapers mounted outward at a constant pitch) 9 is connected to left and right troughs 4 and 5, an intermediate stay 8, and a driving wheel in a chain driving device 10. 10
a, and the scraper chain 9 is driven by the driving device 10 to run in the direction of the arrow in FIG.

As a result, the ballast 23 of the roadbed 20 is laterally scraped out, taken into the trough 4 and transferred to the belt conveyor 12 on the carriage 1. Then, by the belt conveyor 12 and the belt conveyor 13 provided with the turning and elevation angle control device, it is carried out to a nearby freight car (not shown) waiting.

The troughs 4, 5, the lifting cylinder 6, and the chain drive device 10 are supported by the above-mentioned movable frame 3, and the movable frame 3 is directed rearward of the carriage 1 by the slide device 7. When it is displaced as shown, trough 4,
The tip of 5 comes behind the rear wheel RW of the bogie. Therefore, if the intermediate stay 8 is connected to the tips of the troughs 4 and 5 at that position and the ballast 23 of the roadbed is scraped out with the scraper chain 9,
The load of the bogie 1 is the rail 2 before the old ballast is scraped out
1 to eliminate the need to support the sleepers in the air with spacers.

The belt conveyor 12 includes a slide device 14
During normal traveling of the carriage 1, the belt conveyor 12 is pulled up obliquely upward by the slide device 14 so that the length of the protrusion from the rear part of the carriage falls within the regulation range.

Reference numeral 11 in FIG. 1 is a work drive device for the truck. Reference numeral 15 denotes an operation room, where the machine is operated while observing the scraping condition.

When the troughs 4 and 5 are attached to the movable underframe 3 as shown in the figure, the trough is not so inclined during the work, and the scraped-out ballast can be carried out smoothly.

Reference numeral 16 in FIGS. 1 and 2 denotes a vertical scraper device provided on the outer side of the tip of the troughs 4 and 5. In this apparatus, a plurality of scrapers projecting in the radial direction are attached to the outer circumference of a longitudinally driven rotary shaft. In FIG. 2, the one attached to the trough 4 is clockwise, and the one attached to the trough 5 is counterclockwise. Each of the scrapers is driven to rotate, and works to collect ballasts at both ends of the track bed 20 at positions where they can be scraped out by the scraper chain 9. This vertical scraper device is provided as needed.

Next, an embodiment of a ballast changer according to the second invention is shown in FIG.

This ballast changer is provided with a front wheel FW of the bogie 1.
Auxiliary wheel 1 raised and lowered by cylinder 18 between the rear wheel RW
7 is provided, and the old ballast is scraped out behind the auxiliary wheel. Although not shown, this changer also has an intermediate stay similar to that shown in FIG. 2, and the intermediate stay is disposed behind the point of contact of the auxiliary wheel 17 with the rail 21, and left and right troughs are provided at both ends. (Only 4 on one side is shown)
Connect the tip of. The scraper chain 9 is of course provided with the scraper chain 9.
It drives out at 0 and scrapes out the old ballast 23 of the track bed 20 and carries it out via the trough 4 and the belt conveyors 12 and 13. In FIG. 19, a jib crane that lifts the front end side of the trough at the time of transporting can be replaced with a cylinder or the like.

In the ballast changer of FIG. 3, the trough can be extended by disposing the front end of the trough ahead of that of FIG. For this reason, the rear part of the trough is directly supported by the fixed frame 2 of the bogie 1 here, but the movable trough 3 of FIG. 1 having a slide device may be provided and a trough may be attached thereto. By making it longer, the inclination of the trough during operation can be made gentler.

The auxiliary wheel 17 receives a load on the rear side of the bogie 1 instead of the rear wheel RW during operation. Therefore, it is attached to the rear of the position of the center of gravity of the carriage 1.

When the auxiliary wheel 17 is pushed down to the position shown in the figure while the trough is fixed at the working point shown in the figure and the load on the rear side of the bogie is received by the auxiliary wheel 17, the old ballast on the lower side of the rear wheel RW is scraped out. No sinking of the rail will occur. The auxiliary wheel 17 is lifted from the rail 21 by the cylinder 18 so as not to hinder the running of the bogie 1 during normal running.

[0032]

As described above, in the ballast changer according to the first aspect of the present invention, the ballast excavation portion (the intermediate stay and the trough tip) is disposed behind the rear wheel of the bogie. The rail does not float in the air, and the work for stopping the rail from settling is not required, thereby improving work safety and work efficiency.

Further, when the trough is mounted on a movable underframe slidable to the rear of the bogie, it is possible to suppress an increase in the inclination angle due to a shortage of the trough and maintain good ballast take-in.

In the ballast changer according to the second aspect of the present invention, the load on the bogie is received by the auxiliary wheels and the front wheels located forward of the ballast excavation portion, so that it is not necessary to stop the rail from sinking. In addition, since this changer can suppress an increase in the inclination angle of the trough due to arranging the ballast excavation portion rearward without providing a movable underframe, the sliding mechanism of the movable underframe and the slide mechanism of the belt conveyor are eliminated. The structure can be simplified. In addition, the one provided with the lifting mechanism for the auxiliary wheels does not hinder the traveling of the bogie during forwarding.

In the ballast changer according to the present invention, since the excavation part is located at the rear part of the bogie, the excavation part is formed by a work vehicle following the old ballast excavation part as compared with the conventional changer at the front part of the bogie. The distance to the new ballast input section is reduced by the length of the bogie.

The exchange of the old ballast and the new ballast is performed during a limited time at night when train operation is stopped.
It is of great significance not only to improve the work efficiency but also to shorten the distance from the old ballast excavation section to the new ballast input section. Since the distance is short, the amount of new ballast to be loaded by the subsequent work vehicle after the excavation of the old ballast is small, and the work is completed early.

[Brief description of the drawings]

FIG. 1 is a side view showing an embodiment of a ballast changer according to a first invention.

FIG. 2 is a plan view of the above replacement machine.

FIG. 3 is a side view showing an embodiment of the second invention.

FIG. 4 is a side view of a conventional ballast changer.

[Explanation of symbols]

 Reference Signs List 1 cart FW front wheel RW rear wheel 2 fixed frame 3 movable frame 4, 5 trough 7 slide device for movable frame 8 intermediate stay 9 scraper chain 10 chain drive device 10a drive wheel 11 work drive device 12, 13 belt conveyor 14 Conveyor slide device 17 Auxiliary wheel 18 Cylinder for lifting / lowering 20 Roadbed 21 Rail 22 Sleeper 23 Ballast

Claims (4)

[Claims] 1. A front end of a trough extending forward and downward from both sides of a bogie on a railway track is connected to both ends of an intermediate stay installed across a track bed under a sleeper of a railway track, and the trough and the intermediate stay are connected. In a ballast changer that scrapes out the old ballast on the roadbed with a scrape patien that makes it travel, and carries it out through the trough, the intermediate stay and the tip of the trough are
A ballast changer, which is disposed behind a contact point between a rear wheel of the bogie and a rail. 2. The end of a trough extending forward and downward from both sides of a bogie on a railroad track is connected to both ends of an intermediate stay installed across a track bed under a sleeper of a railroad track, and the trough and the intermediate stay are connected. In a ballast changer that scrapes out the old ballast of the roadbed with a scrape pachin to be driven and travels through a trough, an auxiliary wheel for supporting the bogie is provided between the center of gravity of the bogie and a rear wheel, and the intermediate stay and the trough are provided. A ballast changer characterized in that a tip is disposed behind a contact point between the auxiliary wheel and a rail. 3. The ballast according to claim 1, wherein a movable frame and a slide device for displacing the frame rearward are provided at a rear portion of the vehicle, and the driving device for the trough and the scraper chain is supported by the movable frame. Replacement machine. 4. The ballast changer according to claim 2, further comprising an elevating mechanism for lifting the auxiliary wheel from a rail.