JPH05118002A - Fixer for rail - Google Patents

Abstract

PURPOSE:To automatize fixing operation of rails to sleepers by providing means to move rails in widthwise direction, means to move clip plates, and means for tightening bolt and nut. CONSTITUTION:Sleepers 2 are set on a place where rails are to be set, and clip plates 9 are temporarily fixed to given positions on the sleeper 2 by bolt and nuts. A rail 1A is placed between the clip plates 9, and its position is adjusted in the longitudinal direction to a position where the rail 1A is connected to the end of a rail 1 already set. The widthwise position of the rail 1A is also adjusted by a pusher to move the rail to the widthwise direction, and the clip plates 9 are moved to the position where they are coupled with the bottom of the rails 1A by using a mover to move the plates 9. The temporarily fixed bolt and nuts are further clamped by the clamper for bolt and nut to fix the rail 1A.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for automatically fixing a rail on a sleeper in a rail laying work.

[0002]

2. Description of the Related Art In order to lay a rail at a predetermined place where sleepers are laid, a new rail that has not been laid is placed at an appropriate position where it is connected to a rail that has already been laid, and then it is welded or spliced. The work is repeated, such as connecting to the rails that have been laid and fixing them on the sleepers. To fix the rail on the sleeper, adjust the position of the rail in the width direction and then
The sides of the bottom of the rail (flange) are pressed onto the sleepers with pins and clip plates (locking pieces) attached to the sleepers.

As a means for facilitating the transportation of the rail to a predetermined place, there is a device described in Japanese Utility Model Publication No. 58-33121, but a device for automating or labor saving the above-mentioned laying work itself is as follows. Currently not found. In other words, conventionally, most of the work of laying rails has been done manually.

[0004]

Generally, rail laying work is often performed under unfavorable working conditions. Even if the work is done outdoors, it is usually carried out at night when the number of vehicles on the rails is small and the weather is not selected. .. Further, since the rail is a heavy object even before being connected, the burden on the operator is not light even if the position is moved a little for manual work. In addition, the work conditions are not good in that the work is relatively simple and is accompanied by psychological fatigue as described above.

From the above points, it is considered that the work for laying the rails should be made as labor-saving and automated as possible to reduce the burden on the worker and improve the work efficiency, and to improve the efficiency of the laying work. .. In particular, it is strongly desired when the work is done in a small tunnel or when the number of times of connecting and fixing the rail is large because a relatively short rail is used.

It is an object of the present invention to provide a device for automating the work of fixing the rail-the work of adjusting the position of the rail not yet laid in the width direction on the sleepers and fixing it with the clip plate-by laying the rail. It is to streamline the work.

[0007]

The rail fixing device of the present invention comprises: a) means for moving the rail in the width direction on the sleeper (A).
Means) and b) means for moving the above-mentioned clip plate, which is temporarily fixed on the sleeper by the above-mentioned bolts and nuts at a position outside the installation position of the rail, to a position for hanging on the bottom of the rail (B means). And c) means for further tightening the above-mentioned bolts and nuts (C means) and-are arranged at positions on both sides of the rail.

[0008]

When the fixing device of the present invention is used, the rail is laid by the following steps. First, the sleeper is installed at the rail laying place, and the clip plate is bolted at a predetermined position on the sleeper-a position on both sides with the bottom of the rail sandwiched between them, and a position where a space is provided for the rail-. -When it is temporarily fixed by the nut, the rail not yet laid is placed between the clip boards on the sleeper. The rail is longitudinally aligned to the point where it joins the end of the installed rail (usually connected to the installed rail, but this is not required)
Then, the fixing device of the present invention fixes the rail not yet laid on the sleeper as follows.

1) First, the means A described above adjusts the position of the rail in the width direction. The device (and hence the means A) is provided on both sides of the rail so that the rails are moved in the width direction with respect to each other, so that the rail can be moved to an appropriate position on the sleeper.

2) When the position adjustment of the rail in the width direction is completed (or together with this position adjustment), the B means moves the clip plate so that a part of the clip plate hangs on the bottom of the rail.

3) When the above 1) and 2) are completed, replace the bolts and nuts that temporarily fix the clip plate as described above.
The above-mentioned means C is retightened to complete the fixing of the rail.

That is, if the clip plate is temporarily fixed in advance to a predetermined position on the sleeper with bolts and nuts and the rail is placed at a position sandwiched by the clip plate, the rail is fixed on the sleeper. The work is done automatically by the device of the invention.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention is shown in FIGS. In this embodiment, in a tunnel excavation site, a power truck (a truck for supplying power to the excavator, not shown) and various types of vehicles that move following the excavator (for example, shield machine, not shown). Related to the work of laying two sets (four in total) of rails 1 for traveling such as an equipment carrier truck (not shown). In the above-mentioned laying work, sleepers 2 made of H-shaped steel or the like are first laid laterally (in a direction at right angles to the axis of the tunnel) in the tunnel excavated by the excavator, and on top of that, A relatively short rail 1A (not laid before becoming the laying rail 1) is installed along the axis of the tunnel, and is connected to the already laid rail 1 and fixed on the sleepers. The reason why each rail 1A is short is to facilitate the handling in the small tunnel, and in this example, each rail is 5 m. The equipment introduced below is
The present invention relates to connection and fixing of the rail 1A in such a construction work.

In this embodiment, the work of assisting the installation of the rail 1A at a predetermined position on the sleeper 2, connecting the rail 1A to the installed rail 1 and fixing the rail 1A on the sleeper 2 is shown in FIG. 10 is done. The laying carriage 10 is shown in FIG.
As shown in (a) and (b), a motor 1 with a reducer that is a drive source
1 and four drive wheels 12 and four idle wheels 13 connected thereto enable traveling on the rail 1. As the tunnel is being excavated to the left in Fig. 4,
In principle, the trolley 10 also advances with the left side of the drawing as the front. The rail 1A shown on the left side is not yet laid on the sleeper 2 and has to be connected to the already installed rail 1 and fixed on the sleeper 2.

First, the laying carriage 10 is provided with an opening 14 for installing a rail at the front. Guide pieces (not shown) are provided on both edges of the opening 14 to regulate the position of the rear end of the rail 1A placed on the sleeper 2 from above in the width direction (vertical direction in FIG. 4A). ) Is attached. Therefore, the rear end of the uninstalled rail 1A is connected to the opening 14
If the rail 1A is placed along the guide piece from above and the rail 1A is naturally arranged substantially on the extension line of the installed rail 1.

Inside the laying carriage 10, in addition to the three brake devices 20, four rail connecting devices 30 and rail fixing devices 60 are provided. Hereinafter, each of these devices will be described.

As shown in FIG. 4, the brake device 20 mainly comprises a pair of hydraulic cylinders 21 which are arranged to face each other so as to sandwich the head of the rail 1, and the outermost rail 1 is used for the truck 10.
The position to hold at the end of (the lower right of Fig. 4 (a)),
It is installed at a total of three positions in front of it (on the left side) and at a position (upper right in the figure) where the outermost rail 1 farthest from them is held. If these devices 20 are activated (braking) in the order described here and then held in that state, the angle (parallelism) with respect to the rail 1 is accurate, and a considerable force (or couple) is applied. Also, the carriage 10 is in a stationary state. Needless to say, the purpose of providing such a brake device 20 is to prevent the trolley 10 from moving when receiving a reaction force from the rails 1.1A in a connecting work or the like.

The rail connecting device 30 is a device for almost automatically performing the connection shown by the phantom line in FIG. 2 -the connection between the rails 1 and 1A using the joint plates 3 and 4 and the bolts 5 and nuts 6. Is. Each of the joint plates 3 and 4 extends over the end portion (front end portion) of the rail 1 and the end portion (rear end portion) of the rail 1A in the connecting portion, and the through hole of the bolt 5 is the hole of the rail 1.1A. It is applied between the head and bottom of the rails 1 and 1A so as to coincide with 1a (see FIG. 3). On top of that,
Bolts 5 and nuts 6 tighten the joint plates 3 and 4 and the rail 1 or 1A. This rail connecting device 30
Is generally composed of the following four parts a) to d).

A) Means for pressing the first joint plate 3 against the side portions of the rails 1.1A: First, as shown in FIG. 1 (a), the joint plate 3 is held from both ends in the longitudinal direction. At the tip of the rod 31 of the book, supporting metal fittings 32a, 32 are respectively attached.
b is attached. One metal fitting 32a is fixed to the tip of the rod 31 with a screw, while the other metal fitting 32b is attached to the rod 31 via a coil spring 32c so as to be expandable and contractible. By using the elasticity of the coil spring 32c to sandwich the joint plate 3 between the metal fittings 32a and 32b, the joint plate 3 can be held. And the above two rods 3
1 is configured to be moved by the links 33 and 34 and the hydraulic cylinder 35 as shown in FIG. Therefore,
After stopping the laying carriage 10 and aligning the position of the connecting device 30 with the rails 1.1A, the joint plate 3 preliminarily welded through the bolts 5 as shown in FIG.
By setting between the rails 32b and contracting the cylinder 35, the joint plate 3 can be pressed against the side portions of the rails 1.1A and the tip of the bolt 5 can be inserted into the bolt hole 1a of each rail 1.1A.

B) Means for pressing the second joint plate 4 on the side opposite to the rails 1 and 1A: As with the means a) for pressing the joint plate 3, as shown in FIG. Supporting metal fittings 37a and 37b (37b is provided with a coil spring 37c) are attached to the tip of the rod 36, and the joint plate 4 is sandwiched and held by both of them. Then, similarly to the above a), the rod 3 is driven by a hydraulic cylinder for driving (not shown).
The joint plate 4 is pushed out together with 6, and pressed against the side portions of the rails 1.1A. At the same time, the tips of the bolts 5 project from the bolt holes of the joint plate 4.

C) Means for fitting and tightening the nut 6 on the bolt 5: As shown in FIG. 2, a socket 41 into which the nut 6 is mounted, a hydraulic wrench 42 for rotating the socket 41, and further rails 1 for them. A hydraulic cylinder 44 that moves forward and backward toward 1A, a coil spring 43 for a cushion, and the like. When the tip of the bolt 5 comes out of the seam plate 4 by the above b), the socket 4 in which the nuts 6 are mounted one by one by the worker's hand beforehand.
1 by extending the cylinder 44
Move closer to 1A. When the screw hole of the nut 6 is fitted to the tip of the bolt 5, the wrench 42 is activated to tighten the nut 6.
Since four sets of bolts and nuts are used for one connecting portion, as shown in FIG. 1 (a), the wrench 42 has four sets assembled together.

D) Means for adjusting the position of the end of the rail 1A: In the construction of this embodiment, the rear end of the rail 1A is
It is necessary to connect the rail 1 with a space of 0 to 3 mm from the front end thereof, and to connect the rails 1 in a height direction and a width direction without a step (deviation). In this construction, since it is difficult to ensure the above accuracy when installing the rail 1A, the connecting device 30
This means d) is provided. That is, this means is a means for pulling the rail 1A toward the rail 1 or adjusting the end portion of the rail 1A in the height direction and the width direction from a position outside the required accuracy as described above. It is configured as shown in FIG. First, rail 1.1A
A mechanism including a frame 52 that swings with a hydraulic cylinder 53 in a direction along the direction, and a pair of hydraulic cylinders 51 that are arranged opposite to each other at the tip end of the frame 52 has a telescopic end 51a of the cylinder 51 and a rear end head of the rail 1A. The position in the width direction is adjusted by sandwiching, and the head is pulled toward the rail 1 by the cylinder 53. Also,
A portion composed of two sets of link-type clamp mechanisms 54 connected to the hydraulic cylinder 55 and configured to grab the rail 1A at the tip, and a hydraulic cylinder 56 that raises and lowers the entire mechanism 54 is located at the rear end of the rail 1A. Up and down (height direction)
The position is adjusted. The opening 14 of the trolley 10
When the rail 1A is placed at a substantially correct position by using, for example, the d) means is finely adjusted so that the position of the rear end of the rail 1A is aligned with the front end of the rail 1.

The laying carriage 10 is provided with four rail fixing devices 60 as shown in FIG. 4, together with the brake device 20 and the rail connecting device 30 described above. This fixing device 60 is a device for fixing the rail 1A connected to the rail 1 on the sleeper 2 by the bolt 7 and the nut 8 and the clip plate 9 provided therebetween as shown in FIGS. 1 (b) and 1 (c). is there. As shown by the phantom lines in FIG. 1 (a), the clip plate 9 is displaced so as to be out of the installation position of the rail 1A, and the worker lightly tightens it with the bolt 7 and the nut 8 in advance. When the rail 1A is installed on the sleeper 2 and connected to the rail 1, the device 60 rotates the rail 1A to a position indicated by a solid line to fix the rail 1A.

Each of the rail fixing devices 60 is a set of two units of equipment installed in the lower part of the laying carriage 10 and is attached downward so as to sandwich the rails 1 and 1A.
This is as shown in FIGS. That is, the extruded piece 61 for horizontally pushing and turning the clip plate 9 and the extruded piece 6
1, a supporting piece 62 also serving as a guide, a hydraulic cylinder 63 for pushing the pushing piece 61, and a supporting bracket 6 for the cylinder 63.
4, a socket 71 into which the nut 8 is fitted, a hydraulic wrench 72 for turning the socket 71,
The support 73, a guide frame 74 that supports the support 73 so as to be vertically movable, a coil spring 75 for a cushion, and a second portion including a hydraulic cylinder 76 that drives the wrench 72 and the like up and down. Make up a set.

The above-mentioned first portion is for pushing the clip plate 9 around 90 ° smoothly by the arcuate tip portion 61a of the extruding piece 61, and a part of the clip plate 9 is hooked on the bottom of the rail 1A. Not only is it a means for moving the rail 1A in the width direction on each sleeper 2 through the clip plate 9. The clip plate 9 is shown in FIG.
As shown in (c) and (e), in addition to the portion 9a that hangs on the bottom of the rail 1A, a curved surface portion 9b that contacts the side end of the bottom and pushes the rail 1A in the width direction as the clip plate 9 rotates. Therefore, the push-out piece 61 can push and move the rail 1A in the width direction through the clip plate 9. Since the push-out pieces 61 and the like are arranged so as to face each other so as to sandwich the rail 1A, the position in the width direction of the rail 1A can be adjusted (centered) by operating both.

In the second portion, after the movement of the clip plate 9 (at the same time, the position adjustment of the rail 1A in the width direction) is completed, the nut 8 is tightened to fix the rail 1A on the sleeper 2 together with the clip plate 9. Is a means to do. That is, first, the cylinder 76 is extended to lower the support 73, the socket 71 is put on the nut 8, and then the wrench 72 is activated to tighten the nut 8. Since the cylinder 76 pushes the socket 71 and the like downward via the coil spring 75 attached to the tip, the socket 71 smoothly rotates during rotation even if the nut 8 does not cover the nut 8 well due to the angle of the nut 8. It comes to fit in 8.

Although not shown in the drawings, the rail connecting device 30 and the rail fixing device 60 described above are arranged so that they can be displaced up and down and forward and backward (left and right in FIG. 4) with respect to the laying carriage 10. There is. This is because all the four rails 1 (1A) are used by using the four connecting devices 30 and the fixing devices 60 at a time when the carriage 10 is stopped at an appropriate position and is immovable by the brake device 20. The purpose is to perform the work of connecting and fixing to. That is, it is common that the positions and heights of the end portions of the four rails 1 are slightly different from each other.
The positions of the device 30 and the device 60 are adjusted.
If the positions of the device 30 and the device 60 cannot be changed with respect to the trolley 10, usually, one rail is connected or
It is necessary to change the front-rear position and the height of the carriage 10 every time fixing is performed.

By using the laying carriage 10 as described above, the work of laying the rail 1A at the tip of the rail 1 can be carried out by the following procedure. That is, the clip plate 9 is temporarily fixed to the sleeper 2 with the bolt 7 and the nut 8 by shifting the direction to a predetermined position outside the installation position of the rail 1A as described above.

The sleepers 2 described above are arranged at regular intervals,
A required number (5 in this example) corresponding to the length of the rail 1A (5 m in this example) is bridged over a predetermined position in the tunnel.

On the suspended sleeper 2, a rail 1A that has not been installed is installed following each end of the installed rail 1. At this time, the opening portion 14 of the carriage 10 and the guide piece attached thereto are useful for determining the approximate position of the rail 1A.

The trolley 10 is moved to the position shown in FIG. 4 and immobilized by the brake device 20.

The positions of the four connecting devices 30 and the fixing device 60 are determined in accordance with each rail 1. After that, the following procedure is performed in parallel at four locations.

If necessary, the rail 1A is pulled toward the rail 1 or the position of the rail 1A in the width direction or the height direction is adjusted by the means d) of the coupling device 30.

Using the means a), b), and c) of the coupling device 30, the rails 1 and 1A are coupled.

The rail 1 A is fixed on the sleeper 2 while adjusting the position in the width direction by the fixing device 60.

After separating the socket 41 of the connecting device 30 and the socket 71 of the fixing device 60 from the nut 6 and the nut 8, respectively, the truck 10 is moved to the next connecting portion between the rails 1 and 1A or the next fixing portion of the rail 1A. Move and repeat the procedure from above or.

Although one embodiment has been introduced above, it is needless to say that the present invention is not limited to this embodiment and can be implemented by other modes. For example, a) In the above embodiment, the means for moving the clip plate 9 also serves as means for moving the rail 1A in the width direction, but the invention is not limited to this. As means for exclusive use for moving the rail 1A, for example, another hydraulic cylinder or the like may be provided side by side with the cylinder 63 and the pushing piece 61 (these are means for exclusive use for moving the clip plate 9) in FIG. Because. If the movement of the rail 1A in the width direction is performed by a means different from the movement of the clip plate 9 so that the movement amount can be freely determined, the rail 1A can be moved independently of the position of the clip plate 9.
The position in the width direction of the can be freely adjusted.

B) The clip plate does not have to be a part of which is hung on the bottom of the rail 1A by rotating as in the above example, but may be a part of which the clip plate is translated and hangs on the rail 1A. .. In that case, the bolt hole of the clip plate may be an elongated hole that intersects the longitudinal direction of the rail 1A, and means for pushing the clip plate in the direction of the elongated hole may be provided in the device of the present invention.

C) The rail fixing device 60 does not necessarily have to be provided on the laying carriage 10 together with the rail connecting device 30 by the number of the rails 1. This is because it may be mounted on a separate trolley independently of the coupling device 30, and only one fixing device 60 may be configured to move and work on the four rails 1.

[0040]

The rail fixing device according to the present invention has the following effects.

1) If the clip board is temporarily fixed to the sleeper with bolts and nuts in advance, the device automatically fixes the installed rail on the sleeper.

2) Therefore, the burden on the operator in the rail laying work of handling heavy rails in a generally dark and bad environment is reduced, which greatly contributes to the work efficiency and the work efficiency improvement.

3) The effect of 2) above is particularly remarkable in the case of construction in a small tunnel or when there are many rail fixing points because a relatively short rail is used.

[Brief description of drawings]

FIG. 1 is a view showing an embodiment of the present invention, and FIG. 1 (a) is a plan view of a rail fixing device 60 and the like (I in FIG. 2).
-I arrow view). The same (b) is the bb arrow view in the same (a), the same (c) is the cc arrow view in the same (a), and the same (d) is the dd arrow view in the same (c). , (E) is a view from the arrow ee in (c).

2 is a view related to the same embodiment as FIG. 1, and is a front view of the rail coupling device 30 as seen along the rail 1 (II in FIG. 4).
-II arrow view).

FIG. 3 is a view on arrow III-III in FIG.

FIG. 4 (a) is a plan view of the laying carriage 10 in which the rail fixing device 60 and the like are arranged. The same (b) is a side view of the carriage 10.

[Explanation of symbols]

 1 Rail (not installed) 1A Rail (not installed) 2 Sleepers 9 Clip board 10 Installation cart 20 Brake device 30 Rail connection device 60 Rail fixing device 63 Hydraulic cylinder 71 Socket 72 Wrench

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Hiroyuki Kubo, 1-3-2 Shibaura, Minato-ku, Tokyo Shimizu Construction Co., Ltd. (72) Inventor Susumu Sarada 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo No. Kawasaki Heavy Industries, Ltd. Kobe factory (72) Renovation by the inventor Kiyohide, 3-1-1 Higashikawasaki-cho, Chuo-ku, Kobe-shi, Hyogo Prefecture Kawasaki Heavy Industries Ltd., Kobe factory (72) Sadao Harada, Chuo-ku, Kobe-shi, Hyogo 3-1-1, Higashikawasaki-cho Kawasaki Heavy Industries, Ltd. Kobe factory (72) Inventor Shigeto Oki 3-1-1, Higashikawasaki-cho, Chuo-ku, Kobe, Hyogo Prefecture Kawasaki Heavy Industries, Ltd. Kobe factory

Claims (1)

[Claims] 1. A device for fixing a rail placed on a sleeper on the sleeper by means of a clip plate and bolts and nuts, comprising means for moving the rail in the width direction on the sleeper, and an installation position of the rail. A means for moving the clip plate, which is temporarily fixed on the sleeper by the bolts and nuts at the disengaged position, to a position where it is hooked on the bottom of the rail, and a means for tightening the bolts and nuts. A rail fixing device, characterized in that the rail fixing device is provided on both sides of the rail.