JP3854368B2 - Railway rail exchanging apparatus and rail exchanging method using the same - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a rail exchanging device suitable for use in exchanging an existing rail with a new rail for reasons such as aging and damage in a rail for railroad, and a rail exchanging method using the rail exchanging device.
[0002]
[Prior art]
In railways where rails are laid on the roadbed, when replacing existing rails with new rails, a new rail is temporarily placed on the roadbed outside the existing rails, approximately parallel to the existing rails. A method of moving a new rail to the laying position of an existing rail after the existing rail was removed using this Yamagoe device was set in a state where a Yamakoshi device, which is a crane with a frame structure, was straddled over the existing rail. However, in this method, when exchanging a long rail having a rail length of 500 meters or more, a large number of Yamakoshi are required, which requires a great deal of cost and labor, and the operations of these many Yamakoshi are matched. The work of exchanging rails was difficult. Moreover, when exchanging the rails laid on the overhead, it takes a work to lift and carry in a large number of Yamakoshi from the ground to the elevated, and this has the disadvantage that it takes time and labor.
[0003]
Therefore, a rail exchanging method and exchanging device disclosed in JP-A-1-299901 has been proposed. This is because the new rail that is temporarily placed on the outside of the existing rail is guided to the inner rail laying position while running the front guide device on the existing rail, and the rear guide device is driven on the new rail while The existing rail is removed to the outside by the guide device. According to the exchanging method using the exchanging device described above, a large number of Yamakoshi units are unnecessary, and by running the front and rear guide devices at the same time, it is possible to smoothly install new rails and eliminate existing rails in a series of operations. Can be implemented simultaneously.
[0004]
[Problems to be solved by the invention]
However, even when this exchange device is used, when a new rail is first supplied to the front guide device and when an existing rail is supplied to the rear guide device, a Yamakoshi device is still required. Therefore, there still remains a problem that it takes time to carry in and operate the Yamakoshi device. In addition, the overall weight of each of the front and rear guide devices is increased, which may make transportation difficult.
[0005]
The present invention has been made in view of the above circumstances, and by eliminating the need for a Yamakoshi device, the labor for that is reduced, the use and management of the device is simplified, and it is easier to carry and can be carried to the site. It is an object of the present invention to provide an easy railway rail exchanging apparatus and a rail exchanging method using the rail exchanging apparatus.
[0006]
[Means for Solving the Problems]
The present invention has been made to achieve the above object, and the apparatus according to claim 1 removes a pair of left and right existing rails laid on the road bed of a railway, and on the road bed outside these existing rails. A rail-rail exchanging device for use in laying a new rail temporarily placed substantially parallel to the rail laying position after removal of the existing rail, which is a drive wheel that travels on the existing rail. a carriage provided with an arm which is located on this in the carriage perpendicularly to the laying direction of the rail is extended and the tip on the temporary placement position of the new rails, on the arm, moves along the extending direction capable the supported and a moving means for the new rail with a clamper to grip vertically movable from above, provided under the arm at the inside than the temporary placement position of the new rail, movement of the said moving means And the new rails, and support means for supporting at above said rail laying location, a drive source for running the whole apparatus is driven to rotate the driving wheel, it is moved by gripping the new rail moving means An outer roller that narrows the new rail inward in accordance with the travel of the entire apparatus in a state of being placed on the support means .
[0007]
According to a second aspect of the present invention, in the railway rail exchanging apparatus according to the first aspect, the arm is provided at a base end portion thereof and can be folded by a hinge that rotates about a vertical axis. It is characterized by that.
[0008]
According to a third aspect of the present invention, there is provided a rail exchanging method in which the driving wheel of the rail exchanging device according to the first or second aspect is set on the existing rail, and the moving means is placed on the temporary placement position of the new rail. The end of the new rail is gripped from above by a clamper, the end of the gripped new rail is lifted, the moving means is moved inward and placed on the support means, and then the moving means By releasing the grip of the new rail and further moving the rail exchanging device forward, the new rail is guided to the rear through the support means and is dropped into the existing rail by an outer roller. The existing rail after traveling is excluded outside the rail laying position, and then the new rail guided rearward is laid at the rail laying position. To have.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
In FIG. 1, symbol R1 is laid on a railroad bed D through a sleeper M, and an existing old rail that needs to be replaced for reasons such as aging, R2 is a new rail that is newly laid in place of the old rail R1 ( When there is no need to separate the old and new rails, the new rail R2 is temporarily placed on the road bed D on the side of the old rail R1. Reference numeral 1 denotes a rail exchanging device according to the present invention. Hereinafter, the rail exchanging device 1 will be described first, but in the description, descriptions of directions such as front and rear and left and right are defined here as directions based on the forward direction of the exchanging device 1.
[0010]
As shown in FIGS. 1 to 3, the rail exchanging device 1 is schematically composed of a carriage 2, a frame 3, an arm 4, a moving means 5, a support means 6, and a drive source 7. The carriage 2 is configured by connecting a wheel holder 22 to which a pair of front and rear wheels 21a and 21b are attached by a bar 23 extending left and right, and the front wheel 21a is a drive wheel in which a hydraulic motor is incorporated. Further, the front wheel 21a and the rear wheel 21b are rotatable in synchronization via a chain (not shown) or the like.
[0011]
The frame 3 is formed by connecting the upper ends of a pair of left and right columns 31 erected on the wheel holder 22 with a bar 32 extending in the left and right direction. The left and right upper ends of the columns 31 rotate about a vertical axis. Hinges 33 are respectively installed. Further, a pair of the arms 4 extend horizontally from the hinge 33 toward a position orthogonal to the laying direction of the rail R, that is, to the left and right. Here, the total length of the arm 4 is set so that the tip of the arm 4 is positioned on the temporary placement position of the new rail R2. Furthermore, the arm 4 can be folded in a direction parallel to the laying direction of the rail R, with the hinge 33 as a fulcrum, as shown by a two-dot chain line in FIGS. Has been.
[0012]
The moving means 5 is suspended on the arm 4 so as to be movable up and down along the extending direction thereof, and is suspended from the manual winch 51 through a chain 52 so as to move up and down. The clamper 53 is configured to hold the rail R between the left and right sides. The support means 6 is a pair of members extending horizontally from the wheel holder 22 to the left and right between the wheels 21a and 21b, and the tips thereof do not hinder the vertical movement of the new rail R2 by the moving means 5. Thus, it is located inside the temporary placement position of the new rail R2. Furthermore, on the upper surface of each support means 6, a horizontal roller 63 sandwiched from the left and right by an outer roller 61 and an inner roller 62 that rotate about a vertical axis can rotate about an axis that is orthogonal to the laying direction of the rail R. Is provided.
[0013]
The drive source 7 is a combination of an engine 71 and a hydraulic pump (not shown) and accommodated in a frame 72, and is attached to the bar 23 via the frame 72. And the hydraulic motor of the wheel 21a on the drive side of the carriage 2 is operated by the power of the drive source 7.
[0014]
Next, a rail exchanging method using the rail exchanging apparatus 1 having the above configuration will be described below.
First, the new rail R2 is disposed substantially parallel to the old rail R1 on the outer roadbed D of the old rail R1 to be replaced, which is a work section. The end of the new rail R2 substantially coincides with the joint between the old rail R1 to be replaced and the main rail (not shown) connected to the old rail R1, and has a normal posture or base. With the head facing down. Further, the rail exchange device 1 is installed on the main rail so that the forward direction is the direction of the work section (the direction indicated by the arrow F in FIGS. 4 to 6) with the arm 4 extending left and right. This completes the preparation for the replacement work.
[0015]
When the preparation is completed, the manual winch 51 is moved outward until it is located on the temporary placement position of the new rail R2, and the rail exchanging device 1 is moved forward by self-propelled to a position before the joint between the main rail and the old rail R1. . This state is shown in FIG. Then, by operating the manual winch 51, the chain 52 is fed out until the clamper 53 can grip the new rail R2, and the clamper 53 is opened and the head of the new rail R2 is sandwiched from the left and right to close it. As indicated by the middle arrow P, the end of the new rail R2 is gripped. The position adjustment of the clamper 53 relative to the new rail R2 may be performed by swinging the clamper 53 or moving the manual winch 51 slightly.
[0016]
When the new rail R2 is gripped by the clamper 53, the manual winch 51 is operated to wind up the chain 52, and the end of the new rail R2 is lifted above the outer roller 61 as indicated by an arrow Q in FIG. Next, as indicated by an arrow R in FIG. 1, the manual winch 51 is moved inward until it is positioned on the horizontal roller 63 of the support means 6. When the end of the new rail R2 reaches the horizontal roller 63, the manual winch 51 is operated to feed out the chain 52, and the clamper 53 is lowered until the new rail R2 is placed on the horizontal roller 63. Further, by releasing the gripping of the new rail R2 by the clamper 53 and returning the clamper 53 upward, the installation of the new rail R2 on the support means 6 is completed as indicated by the arrow S in FIG.
[0017]
When the new rail R2 is installed on the support means 6, the rail exchange device 1 on the old rail R1 is advanced in the direction indicated by the arrow F. Then, the new rail R2 is squeezed inward due to the presence of the outer roller 61 while moving relative to the rear on the horizontal roller 63. As a result, as shown in FIG. It is dropped inside the old rail R1.
[0018]
Subsequently, the fastening of the old rail R1 to the sleepers M is released, and the connection with the connected main rail is released. In this case, since the rails are usually connected by connecting a connecting material called a seam plate to both rails and bolted, specifically, the old rail R1 to be replaced by removing the seam plate. And the main rail are disconnected. Further, among the old rail R1 that has been disconnected from the main rail, the rear portion of the rail exchange device 1 is removed to the outside with a tool such as a bar, and the new rail R2 that is dropped inside the old rail R1. Are connected to the main rail via the joint plate.
[0019]
Then, as shown in FIG. 6, the rail exchange device 1 is advanced by self-propelled at an appropriate speed, and the new rail R2 is sequentially fastened to the sleepers M while sequentially removing the old rail R1 to the outside. The rail R2 is laid on the road bed D sequentially through the support means 6, and the old rail R1 is replaced with the new rail R2. At this time, the new rail R2 intersects the old rail R1 behind the rail exchanging device 1.
[0020]
On the other hand, when the rail exchanging device 1 is transported, etc., the pin 34 is operated so that the arm 4 is parallel to the laying direction of the rail R with the hinge 33 as a fulcrum as shown by a two-dot chain line in FIGS. Fold it in the direction. By doing so, the width of the rail exchanging device 1 is reduced to the extent that it is within the vehicle limit. As a result, the rail exchanging device 1 using the rail R can be easily transported.
[0021]
Thus, according to the rail exchanging device 1 of the present invention, since the new rail R2 is installed in the device by the own arm 4 and the moving means 5, the Yamakoshi device, which has been indispensable in the past, becomes unnecessary. Therefore, problems such as the labor required for carrying in and operating the Yamakoshi device to the site are solved.
[0022]
Since the rail exchange device 1 has a simple structure as shown in FIGS. 1 to 3, the use and management of the device are simplified, and the device is reduced in size and weight, so that the device can be transported and used on site. It becomes easy to carry in. In particular, since the arm 4 can be folded, the rail exchanging device 1 can be downsized to the extent that it is within the vehicle limit. Further, since the manual winch 51 having a light weight and a simple structure is used for the moving means 5, not only the weight reduction of the rail exchange device 1 is promoted, but also the failure occurrence rate is reduced, and the repair at the time of the failure is easy. It is also advantageous in that it is. Further, since the manual winch 51 is inexpensive, there is an effect that the manufacturing cost of the apparatus is reduced.
[0023]
【The invention's effect】
As described above, according to the rail exchanging device of the present invention, the new rail is installed on the device by its own arm and moving means, so that the Yamakoshi device, which has been indispensable in the past, is no longer necessary, and as a result, to the site. This eliminates problems such as the time and effort required to carry in and operate the Yamakoshi device.
[0024]
Further, since the structure of the rail exchanging device is simple, the use and management of the device are simplified, the device is small and light, and the device can be easily transported and carried into the site. In particular, since the arm can be folded, the rail exchanging device can be downsized to the extent that it is within the vehicle limit.
[Brief description of the drawings]
FIG. 1 is a front view taken along an arrow I in FIG. 2 showing an example of the structure of a rail exchanging device according to the present invention.
FIG. 2 is a top view taken along the arrow II in FIG. 1 showing an example of the structure of the rail exchange device of the present invention.
FIG. 3 is a side view taken along the arrow III in FIG. 2 showing an example of the structure of the rail exchanging device of the present invention.
FIG. 4 is a top view showing a procedure of rail replacement by the rail replacement device of the present invention.
FIG. 5 is a top view showing a procedure of rail exchange by the rail exchange device of the present invention.
FIG. 6 is a top view showing a procedure of rail replacement by the rail replacement device of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rail exchange device 2 Carriage 4 Arm 5 Moving means 6 Support means 7 Drive source 21a Wheel (drive wheel)
D Roadbed R1 Old rail (existing rail)
R2 new rail

Claims (3)

The pair of left and right existing rails laid on the road bed of the railway is removed, and new rails temporarily placed in parallel on the road bed outside the existing rails are laid at the rail laying position after the existing rails are removed. Railway rail exchanging device used when
A carriage provided with driving wheels that run on the installed rails;
An arm extending perpendicularly to the rail laying direction on the carriage and having a tip positioned on the temporary placement position of the new rail;
On the arm, and moving means comprising a clamper for gripping vertically movably its extended along the direction being movably supported and the new rail from above,
Support means provided below the arm on the inner side of the temporary placement position of the new rail and supporting the new rail moved by the moving means above the rail laying position;
A drive source for rotating the drive wheel to travel the entire apparatus ;
A rail for rails having an outer roller for narrowing the new rail inward according to the travel of the entire apparatus in a state where the new rail is gripped and moved by the moving means and placed on the support means Exchange equipment.   The railway rail exchanging apparatus according to claim 1, wherein the arm is foldable by a hinge provided at a base end portion thereof and rotating around a vertical axis. The drive wheel of the rail exchanging device according to claim 1 or 2 is set on the existing rail,
The moving means is arranged on the temporary placement position of the new rail, the end of the new rail is gripped from above by a clamper ,
After lifting the end of the gripped new rail, moving the moving means inward and placing it on the support means, release the grip of the new rail by the moving means,
Furthermore, by advancing the rail exchanging device, the new rail is guided rearward through the support means and dropped into the existing rail by an outer roller ,
After exchanging the existing rail after the rail exchanging device travels outside the rail laying position, the new rail guided rearward is laid at the rail laying position. .

Images