JP2555508B2 - Rail seam spacing correction device - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for correcting rail seam spacing.

[0002]

2. Description of the Related Art Correction of rail seam spacing has conventionally been performed manually using a device 1 as shown in FIG. The device 1 is composed of a pair of device main bodies 4 and 5 mounted on the rails 2 and 3, and a pair of screw rods 6 and 7 connecting the main bodies 4 and 5 to each other.

A plurality of clamps 8 which are crimped to the side surfaces of the rails 2 and 3 are rotatably arranged in the main bodies 4 and 5. For example, when the main body 4 is moved in the direction of arrow a, the clamps 8 are increasingly rail 2. It is configured to be crimped to the side surface of. Reverse threads are formed on both sides of the screw rods 6 and 7, and when the screw rods 6 and 7 are rotated by the lever rod 9, the main bodies 4 and 5 are attracted to each other so that the rail joint 10 is narrowed. Has become. Further, when the left and right bodies 4 and 5 are interchanged and the screw rods 6 and 7 are screwed into the opposite sides of the body 4 and 5 and the screw rods 6 and 7 are similarly rotated, the body 4 and 5 are separated from each other and the rails are separated. The seam 10 can be widened.

[0004]

In the conventional rail seam spacing correction, the two seams of the left and right rails are manually corrected by using two sets of the above-described device 1. For this reason 4
A minimum of four workers was required to move the lever lever 9 of the book. In addition, the main body 4, 5 is left and right interchanged and the screw rod 6, 7 is used for narrowing and widening the rail interval.
There is a hassle of having to replace
There was a problem in terms of work efficiency.

[0005]

The present invention has been devised to solve the above-mentioned problems. (A) a carriage that can run on a rail; and (b) a carriage that is arranged below the carriage. A guide shaft that is parallel to the rail; and (c) a pair of openable and closable clamp arms that are slidable with respect to the guide shaft and that can hold each of the two end portions that form a joint of the rail. (D) a positioning cylinder that is disposed between one of the pair of clamp arms and the carriage, and drives the one clamp arm along a guide shaft, and (e) between the pair of clamp arms. It is provided with a straightening cylinder that is arranged and adjusts the interval between the clamp arms, and (f) a clamp cylinder that drives the pair of clamp arms to open and close. The present invention also provides
A hydraulic motor driven by hydraulic power from a power vehicle adjacent to the vehicle to drive the vehicle by itself is disposed on the vehicle, and a vertical cylinder with a piston rod facing upward is provided at an end of the vehicle adjacent to the vehicle. And a bracket extending above the vertical cylinder is provided at the end of the power vehicle adjacent to the bogie, and the piston rod of the vertical cylinder is raised to push up the bracket to raise the power. The carriage and the power vehicle are integrally driven by the hydraulic motor while the carriage bears a part of the weight of the vehicle. Further, in the present invention, a rolling cylinder having a piston rod facing downward is disposed in the center of the carriage, the rolling cylinder is lifted by the rolling cylinder, rotated at a right angle, and passed on another rail at a right angle. It can be placed on the auxiliary rail.

[0006]

With the pair of clamp arms open, the first drive means moves the clamp arms along the guide shaft so that the pair of clamp arms are located on both sides of the rail joint. Next, the pair of clamp arms are closed by the second drive means to clamp both sides of the rail. When the first driving means is driven in this state to increase the mutual distance between the pair of clamp arms, the seam spacing of the rails increases. On the contrary, if the distance between the pair of clamp arms is shortened, the seam spacing of the rails is shortened.

[0007]

An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows a rail joint gap correction device 20 according to the present invention. This device 20 has a carriage 23 with four wheels 22 that can travel on rails 21 and 21, and four front, rear, left and right clamp arms 24, 24 and 25, 25 attached to the carriage 23. Arms 24,2
The rails 21 and 21 can be sandwiched between 4 and 25 and 25. Since the device 20 is symmetrical on the left and right sides with respect to the center of the rails 21, 21, only the structure on one side will be described below. In the following description, the longitudinal direction of the rail 21 will be referred to as the front-back direction.

The carriage 23 has a guide shaft 26 that is parallel to the rail 21 just above the rail 21, and the front and rear ends of the guide shaft 26 are fixed to the pillar portions 23a and 23b of the carriage 23. As shown in FIGS. 1 and 3, two front and rear moving bases 27 and 28 are slidably attached to the guide shaft 26 along the guide shaft 26. This moving stand 27, 28
Between the lower end of the and the pillars 23a, 23b of the carriage 23,
A positioning cylinder 33 and a straightening cylinder 34, which are parallel to the guide shaft 26 and are operated by hydraulic pressure, are provided, and the movable bases 27 and 28 are slid by driving these cylinders 33 and 34.

As shown in FIG. 3, a pair of (two) clamp arms (24, 24) (25, 25), which are rotatable in the up-down direction about the fulcrum pins 35, 35, are provided on the respective movable bases 27, 28. Is installed. In the claims, "a pair of clamp arms" means a clamp arm (24, 24) and a clamp arm (2
It is a "pair of clamp arms" consisting of 5,25). These two clamp arms (24, 24) (25, 25) are composed of a pair of left and right, and the clamp bolt 36 at the tip thereof is configured to be able to clamp the side abdomen of the rail 21. The clamp bolt 36 is detachable, and when the clamp bolt 36 is removed, the side head portion of the rail 21 can be directly clamped by the tips of the clamp arms 24 and 25. By making the holding position of the rail 21 changeable in this way, it is possible to avoid a signal line (usually arranged at the rail head or abdomen) that interconnects the rail ends at the rail joint position. Hydraulically operated clamp cylinders 37, 37 are provided between the upper ends of the clamp arms 24, 25 and the upper ends of the movable bases 27, 28. The clamp cylinders 37 open and close the clamp arms 24, 25. It is designed to work.

The trolley 23 is self-propelled and is shown in FIGS.
As shown in, the pinion 70 of the hydraulic motor 69 meshes with the driven gear 71 of the wheel 22. The carriage 23 may be provided with a dedicated hydraulic power source, but the hydraulic pressure of the power vehicle 72 may be used. In this case, the truck 23 is connected to the power vehicle 72 by the coupler 73, and the hydraulic pressure on the power vehicle 72 side (not shown) is connected to the hydraulic system of the truck 23 by a hydraulic hose. Further, since the carriage 23 is relatively lightweight, the wheels 22 are likely to slip when moving with the power vehicle 72 only by the driving force of the hydraulic motor 69. Therefore, a bracket 74 is projected on the power vehicle 72 by an attachment method, and the bracket 74 is slightly pushed up by a hydraulically driven vertical cylinder 75 arranged on the vehicle 23 so that the weight of the power vehicle 72 is transferred to the vehicle 23 and the wheels 2
The friction between the rail 2 and the rail 21 is increased.

At the center of the carriage 23, a rolling cylinder 79 is arranged as shown in FIG. This rolling cylinder 79
The piston (not shown) extends downward in the vertical direction, and a pivotable support plate is attached to the lower end of the piston. Then, when it is desired to move the carriage 23 from one rail to another rail, the piston is extended downward to lift the carriage 23 from the rail, and then the carriage 23 is moved.
While rotating 90 degrees, insert the auxiliary rail passed to another rail at a right angle under the carriage 23, shrink the piston and lower the carriage 23 onto the auxiliary rail, and then move the carriage 23 onto another rail. After moving it, extend the piston again to lift the carriage 23, rotate it 90 °, remove the auxiliary rail, and move the carriage 23 onto another rail.
Take off.

Next, the operation of the rail joint gap correction device 20 will be described.

First, the power vehicle 72 moves the rail joint gap correction device 20 to the rail joint position. Next, the brake of the power vehicle 72 is released, the vertical cylinder 75 on the side of the carriage 23 is driven, and the bracket 74 is slightly lifted. Now, by driving the hydraulic motor 69, the carriage 23 and the power vehicle 7
2 and 2 can be moved integrally. By the way, since rail joints usually arrive at relatively short intervals, the work efficiency is poor if the driver rides and stops the motor vehicle 72 from one joint position to the next. Therefore, after moving the carriage 23 to a position where the correction of the seam interval is started, the motor vehicle 72 is released from the brake to be unmanned, and a worker is present next to the carriage 23 and pushes an operation button (not shown) so that It is efficient to correct the rail joint intervals one after another while moving the motor vehicle 72 integrally.

To correct the seam spacing of the rail 21, first, as shown in FIG. 1, the carriage 23 is moved to a position where the two clamp arms 24 and 25 straddle the rail seam 29, and then the positioning cylinder 33 is driven to drive the clamp arm 24. Should be as close as possible to the rail seam 29. Clamp arm 24
Position is fixed here, and then the clamp cylinder 3
7 is driven to close the clamp arm 24. As a result, the left rail 21 is clamped by the clamp bolt 36 at the tip of the clamp arm 24, and the left rail 21 and the carriage 2
And 3 become one.

Next, with the clamp arm 25 open, the adjusting cylinder 34 is driven to bring the clamp arm 25 close to the rail joint 29, and the clamp cylinder 37 is driven to close the clamp arm 25. As a result, the right rail 21
Is clamped by the clamp bolt 36 at the tip of the clamp arm 25, and the right rail 21 and the carriage 23, and by extension, the left rail 21 are integrated.

In this state, when the adjusting cylinder 34 is driven again and the rail joint 29 is widened, the clamp arm 25 is used.
Is moved to the right, and when the rail joint 29 is narrowed, the clamp arm 25 is moved to the left. At this time, the rail 21 on the left side is fixed to the sleeper with a nail, and the nail on the rail 21 on the right side is removed.

Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications can be made. For example, although the adjusting cylinder 34 is arranged between the moving bases 27 and 28 in the above embodiment, the adjusting cylinder 34 may be arranged between the moving base 28 and the pillar portion 23b of the carriage 23. Good. Further, in the above-described embodiment, the rail seam spacing correcting device is symmetrical so that the two rail seam spacings can be simultaneously corrected. However, only one set of clamp arms 24 and 25 is provided so that this can be moved in the width direction of the rail. The intervals may be modified one by one.

[0018]

As described above, the present invention is provided with a pair of clamp arms capable of holding the rail on a carriage that can travel on the rail, and the clamp arms are moved along the rail by the first drive means. Since it is opened and closed by the drive means of 2, the interval correction work can be started immediately by moving the trolley to the work site, and it is troublesome to carry various seam interval correction equipment to the work site as in the past. There is no money. Further, since the work of correcting the rail seam interval is mechanized, work efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a side view of a rail joint gap correction device according to an embodiment of the present invention.

FIG. 2 is a plan view of the device.

FIG. 3 is a cross-sectional view of the device.

FIG. 4 is a front view of the device.

FIG. 5 is a plan view of a conventional rail joint gap correction device.

[Explanation of symbols]

 20 Rail Joint Distance Correcting Device 21 Rail 22 Wheel 23 Carriage 24, 25 Clamp Arm 26 Guide Shaft 27, 28 Moving Base 29 Rail Joint 33 Positioning Cylinder (First Driving Means) 34 Straightening Cylinder (First Driving Means) 37 Clamp cylinder (second drive means) 72 Power vehicle

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Sadayoshi Date Inventor 2-7-1, Ekimae-cho, Okayama-shi, Okayama West Japan Railway Company Okayama Branch Office (72) In-house author Kyoo Morikawa 23 Ikedanaka-cho, Neyagawa-shi, Osaka No. 3 Oyodo Komatsu Ltd. (72) Inventor Michihiro Yuasa 23-3 Ikedanaka-cho, Neyagawa-shi, Osaka Prefecture Oyodo Komatsu Ltd. (72) Noboru Nakayama No. 23-3 Ikedanaka-cho, Neyagawa-shi, Osaka Oyodo Komatsu Co., Ltd. In-house (72) Inventor Go Matsuo 23-3 Ikedanaka-cho, Neyagawa-shi, Osaka Oyodo Komatsu Co., Ltd. (56) Bibliography Sho 63-50901 (JP, U) JP 60-47402 (JP, B2) )

Claims (3)

(57) [Claims] 1. A truck that is capable of traveling on a rail; (b) a guide shaft that is disposed below the truck and that is parallel to the rail; and (c) slidable with respect to the guide shaft. And a pair of openable and closable clamp arms each of which can hold the vicinity of two ends forming the seam of the rail, and (d) is disposed between one of the pair of clamp arms and the carriage, A positioning cylinder that drives the one clamp arm along a guide axis; (e) a straightening cylinder that is disposed between the pair of clamp arms and adjusts the distance between the clamp arms; and (f) the pair. Rail joint gap correction device comprising a clamp cylinder for opening and closing the respective clamp arms. 2. A hydraulic motor, which is driven by hydraulic pressure from a power vehicle adjacent to the vehicle to drive the vehicle by itself, is provided on the vehicle, and a piston rod is provided at an end of the vehicle adjacent to the vehicle. An upright vertical cylinder is provided, a bracket extending above the vertical cylinder is provided at the end of the power vehicle adjacent to the bogie, and the piston rod of the vertical cylinder is raised to move the bracket. The rail seam spacing correction according to claim 1, wherein the truck and the power vehicle are integrally driven and run by the hydraulic motor in a state where the truck is pushed up and a part of the weight of the power vehicle is carried by the truck. apparatus. 3. A rolling cylinder having a piston rod facing downward is disposed in the center of the truck, and the rolling cylinder lifts the truck, rotates it at a right angle, and passes it onto another rail at a right angle. The rail seam spacing correction device according to claim 2, wherein the rail seam spacing correction device can be mounted on the auxiliary rail.