JPH10338902A - Rail renewal device for railway and renewing method of rail using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rail renewal device for a railway, in which no mountain crossing equipment is required and the usage and control of a device are simplified and which is easy to be transported and is carried easily into a field. SOLUTION: The rail renewal device 1 is used when old rails R1 laid on road bed D are removed and new rails R2 temporarily placed in approximately parallel with the outsides of the old rails R1 are laid at the places of the laying of rails after the removal of the old rails R1. A truck 2 with driving wheels 21a travelling on the laid old rails R1, arms 4, which are extended while being cossed at right angles with the direction of the laying of the rails and in which front ends are positioned on places, where the new rails R2 are put on, moving means 5 being movably supported onto the arms 4 and gripping the new rails R2 in a freely vertically movable manner from upper sections, support means 6 being installed to the lower sections of the arms 4 on the insides of the places, where the new rails R2 are positioned, and supporting the new rails R2 moved by the moving means 5 at places upper than the places of the laying of the rails and a driving source 7 rotating and driving the driving wheels 21a and making the whole device travel are mounted.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rail exchanging device suitable for exchanging an existing rail for a new rail due to aging, breakage, or the like, and a rail exchanging device using the rail exchanging device. Related to rail replacement method.

[0002]

2. Description of the Related Art In a railway in which rails are laid on a roadbed, when replacing existing rails with new rails,
Conventionally, a new rail was temporarily placed on the outer side of the existing rail on the roadbed approximately in parallel with the existing rail, and a crane with a gate-type frame structure was set over the existing rail. After removing the existing rail by using the existing rail, a method of moving the new rail to the existing rail laying position has been adopted. However, in this method, the rail length is 5
When replacing long rails over 00 meters or more, a large number of yamagoshi devices are required, requiring a great deal of cost and labor, and it is difficult to replace the rails by matching the operation of these many yamagoshi devices. Was. In addition, when replacing the rails laid on the overpass, it is necessary to lift a large number of Yamagoshi from the ground onto the overpass and carry in the work, which has the disadvantage of requiring much labor and labor.

Therefore, a rail replacement method and a rail replacement device disclosed in Japanese Patent Laid-Open No. 1-299901 have been proposed. This is to guide the new rail temporarily placed outside the existing rail to the inner rail laying position while running the front guide device on the existing rail, and run the rear guide device on this new rail, The existing rail is removed to the outside by the guide device. According to the replacement method using the above-described replacement device, a large number of Yamagoshi devices are unnecessary, and by running the front and rear guide devices simultaneously, a series of operations smoothly lay the new rail and eliminate the existing rail. Can be performed simultaneously.

[0004]

However, even in the case of using this exchange device, if a new rail is first supplied to the preceding guide device and an existing rail is supplied to the subsequent guide device, the Yamagoshi will still be used. Vessel is required. Therefore, there still remains a problem that it takes time to carry in and operate the Yamakoshi device. In addition, since the overall weight of each of the front and rear guide devices is increased, it may be difficult to transport the guide devices.

The present invention has been made in view of the above circumstances, and eliminates the need for a yamagoshi device, thereby reducing the labor required for the device, simplifying the use and management of the device, and making it easier to transport and to the site. It is an object of the present invention to provide a rail exchanging device for rails that can easily carry in a rail and a rail exchanging method using the same.

[0006]

SUMMARY OF THE INVENTION The present invention has been made to achieve the above-mentioned object, and an apparatus according to the first aspect of the present invention removes a pair of left and right existing rails laid on a railway track floor. A rail rail replacement device used when laying new rails temporarily placed substantially in parallel on a roadbed outside of an existing rail at a rail laying position after the removal of the existing rail. A bogie having driving wheels running on the existing rail, an arm extending on the bogie perpendicular to the rail laying direction, and a tip positioned on a temporary placement position of the new rail; Moving means for movably supporting the new rail from above and movably gripping the new rail from above and below, and provided below the arm inside the temporary placement position of the new rail. The said move The new rails moved by stage, and support means for supporting at above said rail laying location, it is characterized by having a driving source for running the whole device the drive wheels are rotationally driven.

[0007] Further, according to a second aspect of the present invention, in the railroad rail exchanging apparatus of the first aspect, the arm comprises:
It is characterized by being foldable by a hinge provided at a base end thereof and rotating about a vertical axis.

According to a third aspect of the present invention, there is provided a rail exchanging method, wherein the driving wheels of the rail exchanging device according to the first or second aspect are set on the existing rail, and the moving means is temporarily moved to the new rail. After placing the new rail on the supporting position, placing the new rail on the supporting means by moving the moving means inward and holding the new rail on the supporting means, By releasing the gripping of the new rail, and further moving the rail exchanging device forward, thereby guiding the new rail rearward through the support means and dropping it inside the existing rail, and the rail exchanging device travels. The present invention is characterized in that after the existing rail is removed outside the rail laying position, the new rail guided rearward is laid at the rail laying position.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, reference numeral R1 denotes an existing old rail that is laid on a railroad bed D via a sleeper M and needs to be replaced due to aging or the like, and R2 denotes a new rail that is newly laid instead of the old rail R1. If it is not necessary to separate the old and new rails, they are simply referred to as rails R.)
Thus, the new rail R2 is temporarily placed on the roadbed D beside the old rail R1. Reference numeral 1 denotes a rail exchange device according to the present invention. Hereinafter, first, the rail exchange device 1 will be described. In the description, directions such as front and rear, left and right,
Here, a direction based on the forward direction of the switching device 1 is defined.

As shown in FIGS. 1 to 3, the rail exchange device 1 is generally constituted by a carriage 2, a frame 3, an arm 4, a moving means 5, a supporting means 6, and a driving source 7. The truck 2 is configured by connecting a wheel holder 22 on which a pair of front and rear wheels 21a and 21b are mounted by a bar 23 extending left and right, and the front wheels 21a are driving wheels in which a hydraulic motor is incorporated. The front wheel 21a and the rear wheel 21b are rotatable in synchronization via a chain (not shown) or the like.

The frame 3 is provided with a bar 3 extending left and right at the upper ends of a pair of right and left columns 31 erected on the wheel holder 22.
The hinges 33 that rotate about a vertical axis are respectively installed at the upper left and right ends of the column 31. Further, from the hinge 33, a pair of the arms 4
Are horizontally extended to the position orthogonal to the laying direction of the rail R, that is, left and right. Here, the total length of the arm 4 is set so that the tip of the arm 4 is located on the temporary placement position of the new rail R2. Further, 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. Have been.

The moving means 5 includes a manual winch 51 supported on the arm 4 so as to be movable in the direction in which the arm 4 extends.
A clamper 53 is vertically suspended from the manual winch 51 via a chain 52 and grips the rail R with the head of the rail R interposed therebetween. The support means 6 is a pair of members horizontally extending from the wheel holder 22 to the left and right between the wheels 21a and 21b.
The tip is located inside the temporary placement position of the new rail R2 so as not to hinder the vertical movement of the new rail R2 by the moving means 5. Further, on the upper surface of each support means 6, an outer roller 61 and an inner roller 6 rotating around a vertical axis are provided.
The horizontal rollers 63 sandwiched from the left and right by the
Are provided so as to be rotatable around an axis perpendicular to the laying direction of the.

The drive source 7 is a combination of an engine 71 and a hydraulic pump (not shown) housed in a frame 72, and is attached to the bar 23 via the frame 72. The hydraulic motor of the wheels 21a on the driving side of the bogie 2 is operated by the power of the driving source 7.

Next, a rail replacement method using the rail replacement device 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 a main rail (not shown) connected to the old rail R1, and has a normal posture, that is, a base. With the head down and the head up. In addition, the rail exchanging device 1 is installed on the main rail such that the forward direction is the direction of the working section (the direction indicated by the arrow F in FIGS. 4 to 6) with the arm 4 extending left and right. Thus, preparation for the replacement work is completed.

When the preparation is completed, the manual winch 51 is
The rail replacement device 1 is moved outward until it is located on the temporary placement position of the new rail R2, and the rail exchange device 1 is advanced by itself to a position just before the seam 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 extended until the new rail R2 can be gripped by the clamper 53, and further, the clamper 53 is opened and the head of the new rail R2 is sandwiched from the left and right sides to be closed. As shown by the middle arrow P, the end of the new rail R2 is gripped. The position of the clamper 53 with respect to the new rail R2 may be adjusted by swinging the clamper 53 or slightly moving the manual winch 51.

When the new rail R2 is gripped by the clamper 53, the chain 52 is wound up by operating the manual winch 51, and the end of the new rail R2 is lifted above the outer roller 61 as shown by the arrow Q in FIG. . Next, as shown by an arrow R in FIG.
Is moved inward until it is positioned on the horizontal roller 63.
When the end of the new rail R2 reaches on the horizontal roller 63,
The chain 52 is extended by operating the manual winch 51, and the clamper 53 is lowered until the new rail R2 is placed on the horizontal roller 63. Furthermore, the new rail R by the clamper 53
When the gripper 2 is released and the clamper 53 is returned upward, the installation of the new rail R2 on the support means 6 is completed as shown by the arrow S in FIG.

After the new rail R2 is installed on the support means 6, the rail exchanging device 1 on the old rail R1 is advanced in the direction shown by the arrow F. Then, the new rail R2 is narrowed inward by the presence of the outer roller 61 while relatively moving rearward on the horizontal roller 63, and as a result, as shown in FIG. 5, the new rail R2 is sequentially moved from its end. It is dropped inside the old rail R1.

Subsequently, the fastening of the old rail R1 to the sleeper M is released, and the connection with the connected main rail is released. In this case, since the rails are usually connected to each other by bolting a connecting material called a seam plate to both rails, specifically, the seam plate is removed to replace the old rail R1 to be replaced. Release the connection with the main line rail. Further, of the old rail R1 disconnected from the main rail, the rear side of the rail exchange device 1 is removed to the outside with a tool such as a crowbar, and the old rail R1 is removed.
The new rail R2 dropped inside is connected to the main rail via the joint plate.

Then, the rail exchanging device 1 is advanced by self-propulsion at an appropriate speed, and the new rail R2 is sequentially fastened to the sleeper M while sequentially removing the old rail R1 to the outside, as shown in FIG. Then, the new rail R2 is sequentially laid on the roadbed D via the support means 6, and the old rail R1 is replaced with the new rail R2. At this time, a new rail R2 crosses the old rail R1 behind the rail exchange device 1.

On the other hand, when the rail exchanging device 1 is transported,
By operating the pin 34, the arm 4 is 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. By doing so, the width of the rail exchanging device 1 is reduced to the extent that it falls within the vehicle limit, and as a result, the transportation of the rail exchanging device 1 using the rail R becomes easy.

As described above, according to the rail exchanging device 1 of the present invention, the installation of the new rail R2 on the device is performed by the arm 4
And the moving means 5 eliminate the need for the Yamagoshi device, which is conventionally indispensable. Therefore, problems such as the labor required to carry in the Yamagoshi device to the site and its operation are eliminated.

Further, since the rail exchanging 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. And to the site. In particular, since the arm 4 is foldable, the rail exchanging device 1 can be reduced in size to the extent that it falls within the vehicle limit. Further, the use of the lightweight winch 51 having a simple structure as the moving means 5 not only promotes the weight reduction of the rail exchanging device 1 but also promotes the reduction.
This is advantageous in that the failure occurrence rate is reduced, and furthermore, the repair in the event of a failure is easy. Further, since the manual winch 51 is inexpensive, there is also an effect that the manufacturing cost of the apparatus is reduced.

[0023]

As described above, according to the rail exchanging apparatus of the present invention, the installation of a new rail on the apparatus is performed by its own arm and moving means. As a result, problems such as the labor required for carrying the Yamagoshi device to the site and the operation thereof are eliminated.

Further, since the structure of the rail exchanging device is simple, the use and management of the device are simplified, and the device is reduced in size and weight, so that the device can be easily transported and brought into the site. In particular, since the arm is foldable, the rail exchanging device can be reduced in size to the extent that it falls within the vehicle limits.

[Brief description of the drawings]

FIG. 1 is a front view along an arrow I in FIG. 2 showing an example of the structure of a rail exchange device of the present invention.

FIG. 2 is a top view showing an example of the structure of the rail exchange device of the present invention, taken along the arrow II of FIG.

FIG. 3 is a side view along an arrow III of FIG. 2 showing an example of the structure of the rail exchange 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 replacement by the rail replacement 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 apparatus 2 Dolly 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

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroki Shiozaki 2-4-2, Shibata, Kita-ku, Osaka-shi, Osaka West Japan Railway Company (72) Inventor Seiichi Hoshino 1431 Egicho, Takasaki City, Gunma Prefecture Tetsuyu Inside the Takasaki Plant of Industrial Co., Ltd.

Claims (3)

[Claims] 1. A method in which a pair of left and right existing rails laid on a railroad track is removed, and new rails temporarily placed substantially in parallel on the roadbed outside the existing rails are respectively removed from the rails after the removal of the existing rails. What is claimed is: 1. A railway rail exchanging device used when laying at a laying position, comprising: a bogie having drive wheels running on the existing rail being laid; extending on the bogie at right angles to a rail laying direction. An arm whose tip is located on the temporary placement position of the new rail; and an arm supported on the arm so as to be movable along its extending direction, and gripping the new rail vertically from above. Moving means, and supporting means provided below the arm inside the temporary placement position of the new rail and supporting the new rail moved by the moving means above the rail laying position; Railway rail replacement apparatus; and a driving source for the serial drive wheels to travel the whole by driving the rotating device. 2. The arm is provided at a base end thereof,
The railway rail exchanging device according to claim 1, wherein the rail exchanging device is foldable by a hinge that rotates around a vertical axis. 3. The driving wheel of the rail exchanging device according to claim 1 or 2, wherein the driving wheels are set on the existing rail, and the moving means is arranged on a temporary placement position of the new rail. After gripping the end from above, lifting the gripped end of the new rail, moving the moving means inward and placing it on the supporting means, releasing the gripping of the new rail by the moving means By further advancing the rail exchanging device, the new rail is guided rearward through the support means and dropped inside the existing rail, and the existing rail after the rail exchanging device travels,
A rail replacement method, comprising: laying the new rail guided rearward at the rail laying position after removing the rail outside the rail laying position.