KR20010019843A - A device for expansion and contraction joint of rail for railway - Google Patents

Abstract

PURPOSE: An expansion joint apparatus of a railway rail is provided to maximize the elasticity of a rail contact part, to joint/disjoint easily and to absorb the shock of a railway by fastening a movable rail and a tongue rail by an elastic clip, and to prevent the instability of a track, vibration and noise by fastening a track firmly. CONSTITUTION: An expansion joint apparatus of a railway rail comprises a movable rail (1) supported upward from the base plate (10) by a clip plate (13) where the elastic clip (11) is inserted and a rail brace (16) installed to be movable with the clip plate (13), a tongue rail (2) supported to a base plate (10) by an elastic clip (11), a tongue rail fastening part (3) coupled with a rail fastening brace (19) to fasten the tongue rail (2) as adhered closely to the movable rail (1), and a rail contact part (21) contacting the movable rail (1) and the front of the tongue rail (2).

Description

Expansion joint of railway rails {A DEVICE FOR EXPANSION AND CONTRACTION JOINT OF RAIL FOR RAILWAY}

According to the present invention, a railroad track is installed at a required location such as rail extension and bridge on a rail having two extension sections and a long rail section on a general track, and the rail extension is adjustable according to the conditions of use of the track. It relates to an expansion joint of a rail.

Generally known rail for rail, in Korea, the temperature change is about 60 ~ 80 ℃, so when the long rail is laid at the median temperature, about 100M of both ends of the completed rail are stretched, When the temperature rises, the axial force of the rail increases in the longitudinal direction of the rail due to the thermal expansion factor, so that when both ends of each rail are in close contact with each other in the width direction of the rail, As rails are pushed and the track widths are different, problems such as derailment occur when the railroad runs, and thus the rail connection parts should always have a predetermined interval.

As a result, it is difficult to absorb the amount of expansion and contraction of the rail at 6 mm, which is an interval between rails considering the above conditions, when the standardized rail is laid, and thus, the expansion joint is used at the connection portion of the rail.

In addition, due to the gap between the rail considering the amount of expansion and contraction of the rail due to thermal expansion during running of the train, there is a drawback of the generation of a long rail to solve this problem, and at the same time the size of the rail movement is gradually increasing It is becoming.

In the conventional expansion joint according to this technique, as shown in Figs. 1 and 2, the moving rail 53 is provided on the upper side of the base plate 52 that is bolted to the base (sleeper) 51 Both sides of the clip plate 55 fixed to the base plate 52 through the coupling means 54 formed as bolts, nuts, and washers on both sides thereof are closely supported.

In addition, a clip rail 55 is installed on the upper side of the base plate 52 bolted to the base 51 and fixed to the base plate 52 through the coupling means 54 on both sides thereof. Both sides of are closely supported.

Subsequently, a joint portion 57 is formed, in which the tip of the tongue rail 56 is installed to have a predetermined gap (maximum 0.5 mm) at one side head of the movable rail 53, wherein the base plate 52 is formed. The rail race 58, which is closely installed to have a gap (up to 0.5 mm) in the abdomen and the lower part of the moving rail 53, which is installed in the), is fixed to the base plate 52 through the coupling means 54.

Then, by processing the lower portion of the tongue rail 53 which is installed to be close to the head and abdomen of the moving rail 52 of the joint portion 57, the rail fixing brake 59 is moved to closely contact the abdomen and the lower part of the moving rail ( 53 is formed on the upper side of the clip plate 55 is formed to support the lower portion as a coupling means (54).

Conventional expansion joint device having the configuration as described above, through the joint portion 57 is installed on one side of the moving rail 53 to adjust the amount of expansion and contraction according to the temperature change of the moving rail 53 produced to a certain standard. The rail 56 is connected, and the movable rail 53 and the tongue rail 56 are respectively installed on the upper side of the base plate 52, and both lower sides thereof are coupled to the base plate 52 through the coupling means 54. It is fixed by the clip plate 55 to be fixed.

In addition, the joint portion 57 is fixed to the moving rail 53 and the other side head of the moving rail 53 which are supported by forming a predetermined gap in one side abdomen by the rail brace 58. The lower portion of the moving rail 53 and the tow rail 56 which is in close contact with the moving rail 53 while being formed to form a gap are processed to have a predetermined shape, and the lower portion of the other side of the tow rail 56 has a base plate 52. Is supported by a rail fixing race 59 fixed as a coupling means 54.

However, in the conventional expansion joint device as described above, the moving rail 53 and the tongue rail 56 are fixed by the coupling means 54, so that the fastening or dismantling is inconvenient, as well as being pushed by vibration and braking when the train is running. Unstable fastening due to frequent bolt loosening, etc., requires periodic repairs due to reduced lateral pressure and double support, and lacks the role of buffering train shocks. It is generated, and problems such as accompanied by early wear of the moving rail and the tongue by friction between the rails generated during unstable fastening by vibration, etc. are generated.

In addition, the process is performed by separately processing the lower part of the moving rail 53 and the tongue rail 56 supported by the rail brace 58 and the rail fixing brace 59 to adjust the clearance at the contact portion of the moving rail 53. In addition, the strength of the lower part becomes weak, and the amount of expansion and contraction of the rail due to the temperature difference is not sufficiently absorbed by the joint part 57, and also, a sudden phenomenon occurs due to the longitudinal force of the rail when the train suddenly stops. There were many problems, such as the fact that the intervals were not always constant, requiring a lot of expenses and personnel for installation, maintenance and repair.

The present invention is to solve the various problems of the prior art as described above, the object of which is to maximize the amount of expansion and contraction of the rail contact, the moving rail and the tongue rail is fixed by the elastic clip fastening or dismantling as well as during the driving of the train It absorbs vibrations easily to cushion the train's shocks and secures the tracks firmly to prevent instability and subsequent vibrations and noises.

In addition, the amount of expansion and contraction of the rail due to the temperature difference is sufficiently absorbed at the rail contact portion, and the rail phenomenon is prevented by the longitudinal force of the rail when the train suddenly stops, and the interval between the tracks is kept constant so that installation, maintenance, and maintenance are possible. It is to provide an expansion joint device of the railway rail to perform easily.

1 is a schematic configuration diagram showing an installation state of a conventional rail expansion joint;

2A and 2B are plan views showing a conventional tow rail and a moving rail for expansion joint devices.

Figure 3 is a schematic configuration diagram showing the installation state of the present invention railway rail expansion joint device

4A and 4B are schematic views showing the rail fixing state of the moving rails " A " and " B "

FIG. 4C is a schematic view showing a "C" portion which is a moving rail and a toe rail contact portion of FIG.

FIG. 4D is a schematic diagram showing the rail fixed state of the tongue rail “D” part of FIG. 3.

5A and 5B are plan views showing the tungsten rail and the moving rail for the expansion joint device according to the present invention.

Figure 6 is a schematic diagram showing a fixed state of the adjustment plate and the chuck according to the present invention

Figure 7 is a schematic diagram showing a base coupling state of the rail according to the present invention

8A and 8B illustrate a coupling state of a rail and a base according to another embodiment of the present invention.

Time Schematic

* Description of the symbols for the main parts of the drawings *

1 ... moving rail 2 ... trail

3.Tail rail fixing part 4 ... Elastic pad

5 ... base 10 ... base plate

11 ... elastic clip 12 ... clip hook

14 ... Pressure 15 ... Adjustment Plate

16.Rail brace 20 ... Joining means

21 Rail contact 23 Fixed jaw

25.Insulator fastener

The present invention as a technical configuration for achieving the above object, is installed on the upper side of the base plate is fixed to the coupling means via the elastic pad on the base by one side of the clip plate is welded to the base plate and the elastic clip is inserted A moving rail supported and fixed by a clip plate into which the other side of the elastic clip is inserted, and a clip plate and rail brake into which the elastic clip is inserted;

A rail installed on one side of the movable rail and installed on an upper side of the base plate fixed through the elastic pad on the base and supported by an elastic clip welded to both sides of the base plate;

A tongue fixing part installed at the tip of the tongue and having a rail fixing brake which is formed so that an elastic clip is inserted through a clip plate on a base plate, and is fixed to the side of the tongue by a coupling means;

The rail fixing brake is formed so that the elastic clip is inserted through the clip plate on the base plate to be in contact with one side of the clip plate into which the elastic clip is inserted, the clip plate into which the elastic clip is inserted, and the rail race. By providing the expansion joint device of the railway rail consisting of a configuration including a rail contact portion.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 3 is a schematic configuration diagram showing the expansion joint device of the railway rail according to the present invention, A, B, C, D of Figure 4 is a schematic diagram showing a fixed state of the moving rail and the tongue rail of Figure 3, 5 is a plan view showing the tongue rail and the moving rail of the present invention, Figure 6 is a schematic diagram showing the adjustment plate and the clamping state according to the present invention, Figure 7 is a base of the rail according to the present invention 8 is a schematic view showing a coupling state, and FIG. 8 is a schematic view showing a coupling state of a rail and a base according to another embodiment of the present invention. The present invention provides a moving rail 1 and a tungsten rail 2 at one side thereof. And a rail contact portion 21 in which the tongue rail fixing portion 3 for firmly fixing the tongue rail 2 and the movable rail 1 and the tongue rail 2 are installed to be in contact with each other.

The movable rail 1 is coupled to the coupling bolt 6, the nut 7 and the spring washer 8 coupled to each other via the elastic pad 4 on the base 5 made of a concrete structure or the like. By the clip plate 13, which is coupled to the upper side of the base plate 10 as the means 20, and the lower both sides are welded to the base plate 10, the clip hook 12 is formed so that the elastic clip 11 is inserted. The base plate 10 is supported, and the lower end of one side of the rail is supported by the clip plate 13 into which the elastic clip 11 is inserted, and the other side abdomen and the lower part of the rail end are inserted into the elastic clip 11. The clip plate 13 is welded to and is supported by a rail brace 16 close to the fine gap through the clamp 14 and the adjustment plate 15 on one side thereof.

The tongue rail 2 installed on one side of the movable rail 1 is installed on the upper side of the base plate 10 coupled to the coupling means 20 via the elastic pad 4 on the upper side of the base 5. And the clip hanger 12 is welded to the elastic clip 11 is inserted into the lower side of the tongue rail (2) to be pressed.

The tongue rail fixing portion 3 installed at the tip of the tongue rail 2 is installed to be in close contact with the abdomen and the lower portion of the tongue rail 2 via the clip plate 13 on the base plate 10. The rail fixing brace 19 having the clip hook 12 formed therein so that the elastic clip 11 is inserted into the coupling bolt 6 and the nut on one side of the tongue rail 2 on which the other side is in contact with the movable rail 1 is provided. It is fixed as (7).

The rail contact portion 21 in which the tip of the tongue rail 2 is in contact with the head of one side of the moving rail 1 is a clip plate 13 into which the elastic clip 11 is inserted and a clamp 14 on one side thereof. Clip hook 12 so that the elastic clip 11 is inserted into one side of the movable rail 1 supported by the rail brace 16 fixed to the clip plate 13 through the adjustment plate 15 engaged with it). While being formed, the tongue rail 2 fixed by the rail fixing blade 19 formed to be in close contact with the abdomen and the lower portion of the tongue rail 2 is in close contact.

In addition, one side of the rail brace 16 for supporting the abdomen and the lower portion of the moving rail 1 is the control plate 16 is supported on the clip plate 13 and the clip hanger 12 of the clip plate 13 It is meshed with the chuck 14, which is compression-supported by the elastic clip 11 inserted into the chuck 14, wherein the chuck 14 and the adjustment plate 15 allow the fine adjustment of the spacing to allow the fine pitch 18 to be fixed. ) Are formed respectively.

In addition, the base 5 is formed of wood or PS concrete (PRESTRESSED CONCRETE), and in the case of wood, a coupling bolt 6 having a screw thread 24 formed on a bottom surface of the fixing hole 9 formed on one side is press-fitted. In the case of PS concrete, a plurality of fixing protrusions 17 are formed around the outer side, and an insulator fastener 22 having a thread 24 formed therein is integrally formed in the base 5 so that the thread ( Coupling bolt (6) formed integrally with the outer periphery of the 24 is fixed through the coupling means 20 is coupled via the spring washer (8).

In addition, the fixing jaw 23 of the clip plate 13 supporting the lower side of the movable rail 1 and the tongue rail 2, respectively, the fixing groove 22 is integrally formed on the upper side of the base plate 10. And one end of the clip hanger 12 is made of a configuration that is fixed integrally.

Referring to the operation of the present invention made of such a configuration as follows.

As shown in Fig. 3 to Fig. 8, the rail is pushed by adjusting the amount of expansion and contraction while the moving rail 1 naturally moves along the contact portion with the tongue rail 2 with respect to the expansion and contraction of the rail with respect to the temperature when the train is running. To prevent.

In addition, as shown in FIG. 4C and FIG. 6, one side of the movable rail 1 is provided with a brace 14 supported by a rail brace 16 and an elastic clip 11 of the clip plate 13. And the bending resistance on the track generated when the train is running and the upper and lower double-pushing forces and the sudden braking of the train when the train is supported by the adjustment plate 15 closely contacted with the rail brake 16 while being engaged so as to allow fine adjustment of the gap at the lower side thereof. The wheels are rubbed against the head of the rails to suppress the occurrence of forcibly pushing or pulling the rails.

At this time, the pitch of the brace 14 of the depress 14 is formed to 6mm and the pitch of the brace 18 of the adjusting plate 15 to be fitted to this is formed of 3mm fine adjustment of the spacing by the gap by the difference. This is possible.

And, as shown in Fig. 4C, the base through the clip plate 13 in the abdomen of the tongue rail (2) of the rail contact portion 21 is formed in contact with the movable rail (1) and the tongue rail (2) The rail fixing brace 19 fixed to the upper side of the plate 10 is integrally fixed by the coupling means 20 to prevent the tongue rail 2 from being pushed in the lateral direction, as well as linear stability at the time of return and braking. And reducing the damage of the rail and keeping the distance of the rail constant.

Subsequently, as shown in Figs. 8A and 8B, the base plate 10 on which the movable rails 1 and the tongue rails 2 are installed and fixed is used as a sleeper of concrete, wood, and PS concrete. The upper side of the base 5 is made integrally coupled through the coupling means 20.

As shown in FIG. 7, when the base 5 is made of a concrete structure, the elastic pad 4 is disposed on the upper side of the base 5 into which the lower part of the coupling bolt 6 formed in the shape of a swing bolt is integrally inserted. It is coupled by the coupling means 20 is inserted into the spring washer 8 through the to facilitate the absorption of vibration during the running of the train, wherein the base 5 and the base plate 10 to insulate the bolt (6) The insulating member 9 is inserted and coupled around the periphery.

In addition, as shown in FIG. 8A, when the base 5 is a PS concrete material, the base plate 10 installed on the upper side of the base 5 has a coupling means (via an elastic pad 4). 20).

The coupling means 20 has a plurality of fixing protrusions 17 formed on the outer circumference of the base 4 so as to be crimped and fixed, and an insulator fastener 22 having a thread 24 formed therein is provided on the base 5. The coupling bolt 6 is formed integrally with the thread 24 is formed integrally on the lower outer periphery of the inner side is made of a configuration that is rotated through the spring washer (8).

In addition, as shown in FIG. 8B, when the base 5 is wood, the base plate 10 installed on the upper side of the base 5 is coupled by the coupling means 20, wherein the coupling The means 20 has a configuration in which the coupling bolt 6 in which the thread 21 is integrally formed at the lower portion is press-fitted into the fixing hole 9 formed in the base 5 via the spring washer 8. Lose.

And, as shown in Figure 3, when the rail rail (2) is in close contact with the moving side of the moving rail (1) head side of the rail contact portion 21, the moving rail (1) so as to be able to move back and forth naturally The rail brace 16 supported by the clip plate 13 on one side is installed while supporting the bottom and the plurality of the moving rails 1 so as to maintain a clearance at 0.5 to 1 mm only at one side of the abdomen to secure a constant tightening force. .

In addition, as shown in FIG. 4C, the rail fixing portion 19 of the rail contact portion 21 has a rail fixing brake 19 supported on the clip plate 13 via an elastic clip 11. It is formed to be in close contact with the abdomen and the lower part is firmly fixed to the bath rail (2) by the coupling bolt (6) and the nut (7), so that when the moving rail (1) is in contact with the rail width direction of the rail (2) This can be prevented.

In addition, the movable rail 1 and the tongue rail 2 are fastened by elastic clips 11 which both sides of the lower rails are fastened to the clip hooks 12 so as to easily absorb impact force when moving up and down after the train is running. do.

As shown in FIG. 4C, the rail race 16 provided on the abdomen of the movable rail 1 has a gap in the abdomen so that the rail can be easily expanded and contracted. The adjustment plate 15, which is installed so as to maintain its clearance at 0.5 to 1 mm, is formed differently from the pitch of the swelling 18 of the chuck 14, in which the pitch of the stool 18 is engaged. When the teeth 18 on both sides are engaged, they are formed to flow with each other due to different pitches, so that fine adjustment of the spacing is possible, so that the braces 14 and the adjustment plates 15 which are engaged on the upper sides are in close contact with each other. ) To assemble together so that the gap gap can be easily adjusted to the amount of telescopic movement when adjusting the rail brace 16.

In addition, as shown in Figures 3 to 8, a fixing groove 22 is formed on the upper side of the base plate 10, the clip plate for supporting both the lower side of the moving rail (1) and the tongue rail ( One end of the fixing jaw 23 and the clip hook 12 of 13) is inserted to prevent overturning of the moving rail 1 and the tongue rail 2 due to the lateral pressure.

In addition, as shown in B and C of Fig. 4, the tongue rail 2 in close contact with one side of the moving rail 1 is spaced apart by the depress 14 and the adjustment plate 15 engaged thereto. It is possible to finely control and maintain a safe stretching device without separately processing the bottom of the rail, thereby shortening the process for processing the bottom of the rail and solved the problem that the strength of the rail becomes weak.

In addition, the elastic rail is elastically coupled to the base (5) via the elastic clip 11 and the elastic pad (4) fixed to the base rail 10, the moving rail 1 and the tongue rail (2) of the expansion joint device Supported by the plate 10 to firmly fix the rail as well as to easily absorb vibration and shock.

And, by supporting the lateral pressure by the rail fixing brake 19 coupled to one side of the tongue rail 2 through the coupling means 20 to prevent the rail from being pushed, and close to one side of the tongue rail (2) In the depress 14 and the adjustment plate 15 having the tooth mount 18 having a different pitch so that the gap of the rail brake 16 installed to support the abdomen and the lower part of the moving rail 1 to be finely adjusted is possible. By adjusting so that the expansion and contraction of the rail can be easily performed.

According to the expansion joint device of the railway rail according to the present invention as described above, maximize the amount of expansion and contraction of the rail contact portion, the moving rail and the tongue rail is fixed by the elastic clip fastening or dismantling, as well as easy vibration, etc. during the running of the train. Absorption and vibration of the train are cushioned and the track is firmly fixed to prevent instability, vibration and noise.

In addition, the amount of expansion and contraction of the rail due to the temperature difference is sufficiently absorbed at the rail contact portion, and the rail phenomenon is prevented due to the axial force of the rail when the train stops suddenly. Easily performed, there is an excellent effect, such as to prevent the inconvenience of having to separately process the lower portion of the tongue rail and the moving rail for gap formation and structural reinforcement.

Claims (9)

The clip plate 13 is installed on the base plate 10 is fixed to the base 5 by the coupling means 20, and the clip hook 13 is formed so that the elastic clip 11 is inserted into the base plate 10 while being welded to the base plate 10. ) Supports the lower part, the clip plate 13 is inserted into which the elastic clip 11 is inserted to support the lower one side of the tip, and the clip plate into which the elastic clip 11 is inserted to support the other abdomen and the lower part of the tip. On the one side of the (13) the movable rail (1) is provided with a rail 14, which is supported through the chuck 14 and the adjustment plate 15 is installed so that fine adjustment of the spacing, The elastic clip 11 is inserted into the clip hook 12 which is installed on the base plate 10 fixed to the base 5 by the coupling means 20 and welded to the base plate 10 to support both lower sides. Tongue rails (2) installed so that, The clip hanger 12 is installed at the distal end of the tongue rail 2 while the elastic clip 11 is inserted through the clip plate 13 on the base plate 10 so as to support the abdomen and the lower portion of the tongue rail 2. The rail fixing brake 19 is formed with a tongol fixing portion (3) is fixed through the coupling bolt (6) and the nut (7), Clip plate (13) in which the tip of the tongue rail (2) is in close contact with the head of one side of the moving rail (1), the tongue fixing portion (3) is coupled to support the lower side of one side of the moving rail (1) Is installed, and the rail contact portion 21 on which the rail brace 16 is installed on one side of the clip plate 13 into which the elastic clip 11 is inserted to support the other side abdomen and the bottom of the movable rail 1. Expansion joint device of railway rail, characterized in that including The coupling means (20) for fixing the tongue rail (2) and the base plate (10) is such that the nut (7) is engaged by inserting a spring washer (8) inside the coupling bolt (6). Expansion joints of railway rails, characterized in that The coupling means (20) for fixing the base plate (10) to the base (5) is a coupling in which the base (5) and the base plate (10) are integrally supported by the base (5). Expansion joint device for railway rails, characterized in that the insulating member 9 is inserted around the bolt 6 The expansion joint of the railway rail according to claim 1, wherein the detent 14 and the adjustment plate 15 connected thereto are each provided with dents 18 having different pitches so that fine adjustment of the intervals is possible. Device According to claim 1, Base plate 10 is fixed to the upper side of the base 5, the elastic joint of the railway rail, characterized in that the elastic pad 4 is inserted inward to absorb the vibration. The base 5 of claim 1, wherein the base plate 10 is coupled to the base 5 through a coupling means 20 in a fixing hole 9 formed on the upper side of the base 5 to easily absorb vibration. Expansion joint device of the railway rail, characterized in that the plate 10 is coupled The coupling means (20) for fixing the base plate (10) to the base (5) is provided with a coupling bolt (6) having a thread (24) integrally formed around the lower portion thereof. Expansion joint device for railway rails, characterized in that the spring was pressed through the washer (8). According to claim 1, The base plate 10 is coupled to the base 5 via the elastic pad 4 is formed of PS concrete so that the base plate 10 on the upper side through the coupling means 20 Expansion joint device of the railway rail, characterized in that coupled According to claim 8, The coupling means 20 for coupling the base plate 10 to the base 5, the plurality of fixing projections 17 formed on the outer periphery, the thread 24 is formed on the inner insulator The fastener 25 is formed integrally with the base 5, characterized in that the coupling bolt 6, which is formed on the outer periphery of the screw thread 24, is coupled to each other via the spring washer 8. Expansion joint of rail