KR20210115926A - Flange bearing crossing for turnout - Google Patents

Abstract

The present invention relates to a flange bearing crossing for a railroad turnout. An objective of the present invention is to provide a flange bearing crossing which is constructed in a block type to be easily installed and replaced, and can markedly reduce the running noise and vibration of a train by removing a connection unit of a crossing. To achieve the objective, the flange bearing crossing for a railroad turnout comprises: two wing rails bent in a V-shape, and arranged to face each other while being separated from each other; a flange bearing block fixed with the two wing rails, and installed between the two wing rails to have a structure separable from the two wing rails; and two extension rails installed to be extended from the flange bearing block along a reference line and a branch line. The flange bearing block includes: a nose unit including an upper surface formed on the upper surface of the extension rails to be continuous to support the tread of a wheel, and a cutting edge positioned between the two wing rails and separated from the two wing rails; and a flange support unit formed to be extended from the nose unit to the head of the wing rails past the throat of the wing rails, and supporting the flange of a wheel.

Description

Flange bearing crossing for turnout

The present invention relates to the crossing of a railway junction, and more particularly, a flange bearing block is assembled between two wing rails in a separable structure, and the wheel is supported by a flange support formed on the flange bearing block while the flange of the wheel is supported. It relates to the crossing of a railway junction made so as to be able to pass through the gage connection part so as to prevent the wheel and the nose part from colliding at the connection part.

A turnout is an on-track facility installed to transfer a train or vehicle from one track to another.

This branch consists of a point part, a lead part, and a crossing part. The point part is the part where the tongue rail that determines the running direction of the train is installed, the lead part is a curved part from the rear end of the point part to the front end of the crossing part, and the crossing part is the reference line side This is the part where the inner rail of the branching line and the branching line intersect.

In general, the crossing part (hereinafter referred to as 'crossing') consists of a V-shaped nose rail and an X-shaped wing rail. To secure it, there is a connection part on the gauge line.

As such, when the train passes through the connection part formed in the crossing, the wheel collides with the tip of the nose rail, which causes running noise and vibration, and has a problem in that the tip of the nose rail having a relatively narrow width is easily worn.

Manganese crossings and special alloy steels with high wear resistance are used to compensate for the problems of crossings as described above, but in spite of using these materials, the problems related to the wear of the tip of the nose rail cannot be completely solved.

On the other hand, a movable crossing has been developed that prevents the connection part from forming by moving the nose part according to the traveling direction of the train. It is difficult to introduce due to the difficulty of changing the electrical and signal systems.

On the other hand, Patent Document 1 discloses a crossing improved so that only the nose portion can be replaced by configuring the nose portion with the most wear with a block made of a high-strength material.

The crossing according to Patent Document 1 can configure the crossing at a lower price compared to the integrated crossing manufactured by casting manganese while significantly improving the strength of the nose part, and when the nose part is damaged, only the nose part can be replaced, so maintenance is convenient This has excellent advantages.

However, since it does not fundamentally prevent the collision between the wheel and the nose part due to the connection part, running noise and vibration of the train still occur, and only the wear amount of the nose part is reduced, but the wear of the nose part is still progressing.

Laid-open Patent Publication No. 10-2003-0089056 (published on Jan. 21, 2003)

The present invention has been made in consideration of the above problems, and the object of the present invention is to make it easy to install and replace because it is of a block type, and to eliminate the connection part of the crossing, which is the root cause of collision and damage to the nose part, so that the running noise and vibration of the train are eliminated. To provide a flange bearing crossing that can significantly reduce the

Another object of the present invention is to provide a flange bearing crossing made so that the flange of the wheel can pass through the crossing while being stably supported on the flange bearing block even when the wheel swings from side to side.

Another object of the present invention is to provide a flange bearing crossing that allows the wheel to enter at an accurate position when the wheel enters the crossing.

The present invention, which achieves the above object and performs the task for eliminating the drawbacks of the prior art, includes: two wing rails arranged to face each other while being spaced apart from each other and bent in a V-shape; a flange bearing block fixed together with the two wing rails and including a nose part installed between the two wing rails to have a structure separable from the two wing rails; and two extension rails installed to extend from the flange bearing block along a reference line and a branch line, respectively, wherein the flange bearing block is formed continuously on the upper surface of the extension rail to support the tread of the wheel a nose portion positioned between the upper surface and the two wing rails and including a tip spaced apart from the two wing rails; and a flange support part formed to extend from the nose part to the head of the wing rail past the throat part of the wing rail, and including an upper surface for supporting the flange of the wheel; Provide a flange bearing crossing of a railway branch, characterized in that it consists of do.

On the other hand, in the flange bearing crossing of the railway junction, the upper surface of the flange support part has a horizontal plane located around the tip of the nose part, a first inclined surface formed to be inclined upward in front of the horizontal plane, and a downward slope formed behind the horizontal plane. It may be configured to include a second inclined surface.

On the other hand, in the flange bearing crossing of the railway junction, the first slope has a positive slope of 1/60 to 1/100 from the front of the 300 mm shear point from the theoretical intersection of the crossing, but the depth of the change section is 9 mm, and the second inclined surface has a negative inclination of 1/60 to 1/100 from the rear with respect to the rear end point 200 mm from the actual intersection of the crossing, but inclined so that the depth of the change section is 9 mm. It is preferable to be formed to be thick.

On the other hand, in the flange bearing crossing of the railway junction, the nose portion is preferably formed to be 9.5 mm lower than the tread of the wheel at the actual intersection.

Meanwhile, in the flange bearing crossing of the railway junction, a third inclined surface formed at the front end of the first inclined surface and having a greater positive inclination than the first inclined surface may be further formed.

On the other hand, in the flange bearing crossing of the railway junction, the auxiliary block is integrally formed on the left and right sides of the flange bearing block or additionally installed in the flange bearing block so as to be fixed in close contact with the wing rail on the left and right sides of the nose part. , the upper surface of the auxiliary block is formed to expand the upper surface of the flange support part while coincident with the upper surface of the flange bearing block support part, so that it can be configured to support the flange of the wheel regardless of the left and right flow of the wheel.

On the other hand, in the flange bearing crossing of the railway junction, a guide formed to protrude from the upper surface of the front end of the flange support to contact the side of the wheel entering the flange support and guide the wheel to move along a predetermined path may be further included. .

On the other hand, in the flange bearing crossing of the railroad junction, the guide has a sharp front end and a rear end, and is composed of a quadrangular pyramid including two inclined surfaces facing forward and two inclined surfaces facing the rear, and is based on the width direction of the flange support part. It may be formed to be located in the central part.

According to the present invention having the above characteristics, it is possible to reduce the dynamic impact applied to the nose portion by removing the connection portion, which is a weak point of the crossing, without impacting the nose portion, and reduce wheel tread wear and damage, Through this, it is possible to reduce maintenance and extend the service life of the crossing, and it can be expected to reduce the noise and vibration generated in the process of the wheel passing the crossing.

In addition, the first inclined surface and the second inclined surface formed on the flange support part change the height of the wheel according to the relative position of the wheel and the nose part and induce the tread of the wheel to naturally climb on the nose part, thereby reducing the impact applied to the wheel and the nose part. can be reduced more effectively.

In addition, the auxiliary block installed between the wing rail and the flange bearing block, which is fixed together with the wing rail and the flange bearing block, supplements the rigidity of the flange bearing block and supports the flange of the wheel while firmly fixing the flange bearing block. According to the configuration, it is possible to always stably support the flange of the wheel passing through the crossing.

In addition, the guide formed at the front end of the flange support guides the wheel to move along a predetermined path while in contact with the side of the wheel entering the crossing, thereby improving the running stability of the train passing the crossing.

1 is a perspective view of a flange bearing crossing according to a preferred embodiment of the present invention;
2 is a plan view of a flange bearing crossing according to a preferred embodiment of the present invention;
3 is a perspective view showing a flange bearing crossing from another angle according to a preferred embodiment of the present invention;
4 is a perspective view of a flange bearing block according to the present invention;
5 is a side view of a flange bearing block according to the present invention;
6 is a perspective view showing a state in which auxiliary blocks according to the present invention are arranged on both sides of the flange bearing block;
7 is a perspective view of a flange bearing block further formed with a guide according to the present invention;
8 is an exemplary view showing a state in which the wheel passes in section AA`;
9 is an exemplary view showing a state in which the wheel passes in the section BB`;
10 is an exemplary view showing a state in which the wheel passes in the CC` section;
11 is an exemplary view showing a state in which a wheel passes in a section DD`;
12 is an exemplary view showing a state in which the wheel passes in the section EE`;

Hereinafter, preferred embodiments of the present invention will be described in detail in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the gist of the present invention, the detailed description thereof will be omitted.

1 is a perspective view of a flange bearing crossing according to a preferred embodiment of the present invention, FIG. 2 is a plan view of a flange bearing crossing according to a preferred embodiment of the present invention, and FIG. 3 is a flange bearing crossing according to a preferred embodiment of the present invention. 4 is a perspective view of a flange bearing block according to the present invention, FIG. 5 is a side view of a flange bearing block according to the present invention, and FIG. 6 is an auxiliary block according to the present invention. A perspective view showing a state disposed on both sides, Figure 7 shows a perspective view of a flange bearing block further formed with a guide according to the present invention.

The flange bearing crossing according to the present invention is a fixed crossing in which the nose part 210 is fixed, and the flange of the wheel is supported by the flange bearing block 200 while the wheel passes the gauge connection part, so that the wheel is connected to the gauge wire connection part. It is designed to reduce noise and vibration generated in the process of passing, and is composed of wing rails 110 and 120 , flange bearing blocks 200 , and extension rails 310 and 320 .

The wing rails 110 and 120 are configured such that two wing rails 110 and 120 bent in a V shape face each other while being spaced apart to form an X shape.

These wing rails 110 and 120 are configured at the front end of the crossing and are connected to the lead rail constituting the branch.

The flange bearing block 200 is located between the two wing rails 110 and 120, but is fixedly installed between the two wing rails 110 and 120 to have a structure separable from the wing rails 110 and 120.

That is, the flange bearing block 200 is located between the two wing rails 110 and 120, and penetrates the wing rails 110 and 120 and the flange bearing block 200 by a bolt that is fastened to the nut. ) is fixed between

To this end, a plurality of through-holes 201 extending in the horizontal direction are formed in the flange bearing block 200 to be spaced apart from each other in the longitudinal direction of the flange bearing block 200 .

On the other hand, the flange bearing block 200 according to the preferred embodiment of the present invention is composed of a nose portion 210 and a flange support portion (220).

The nose portion 210 is formed to have a planar shape similar to an arrow, and a pointed tip 210a is formed to be positioned between the two wing rails 110 and 120 while facing the wheel of the train.

At this time, the tip 210a of the nose part 210 is formed to have the same separation distance from the two wing rails 110 and 120, respectively, and the upper surface 211 of the front end of the nose part 210 is formed as an inclined inclined surface so that the wheel tread is It is designed to climb naturally.

In addition, the rear end of the nose portion 210 is fixed to the extension rails 310 and 320 by fastening a bolt and a nut while being sandwiched between the two extension rails 310 and 320, and the upper surface 212 of the rear end of the nose portion 210 is The tread of the wheel which is continuously formed on the upper surface of the extension rails 310 and 320 and moves on the upper surface of the nose part 210 is configured to naturally move to the extension rails 310 and 320 .

Such a nose portion 210 is preferably formed 9.5 mm lower than the tread of the wheel at the actual intersection P1. This means that when formed lower than 9.5 mm, the slope of the inclined surface formed on the upper surface 211 of the tip of the nose portion 210 sharply increases. will be applied

The flange support 220 is formed in the form of a bar extending from the nose portion 210 to the head of the wing rails 110 and 120 through the throat portion (the portion where the distance between the two wing rails is the narrowest) of the wing rails 110 and 120. , the upper surface of the nose portion 210 or the upper surface of the wing rails 110 and 120 is formed to support the flange of the wheel while being located at a lower place than the upper surface.

As described above, the flange support part 220 formed to protrude forward of the nose part 210 is formed to extend from the arrow-shaped head formed by the nose part 210 to the heads of the wing rails 110 and 120, and the upper surface is a gauge line. It is formed to support the flange of the wheel regardless of the connection part.

As such, the upper surface of the flange support part 220 formed to support the flange of the wheel consists of a first inclined surface 221 , a second inclined surface 222 , a third inclined surface 223 , and a horizontal surface 224 , and the traveling direction of the train Based on , the third inclined surface 223, the first inclined surface 221, the horizontal surface 224, and the second inclined surface 222 are sequentially formed to be connected.

More specifically, the third inclined surface 223 is inclined to have a positive inclination at the front of the flange support part 220 , and is inclined to have a steeper inclination than the first inclined surface 221 .

The third inclined surface 223 is formed such that the inclination increases from 50 mm to 33 mm, which is the minimum flangeway depth.

The first inclined surface 221 is continuous from the rear end of the third inclined surface 223 and is inclined to have a positive inclination, and is inclined to have a gentler inclination than the third inclined surface 223 .

On the other hand, according to a preferred embodiment of the present invention, the first inclined surface 221 has a positive inclination of 1/60 to 1/100 from the front with respect to the shear point 300 mm from the theoretical intersection point P2, It is formed to be inclined to a depth of 9 mm.

The slope of the first slope 221 is preferably at least twice the train passing speed, and due to the first slope 221 having a slope of 1:60 to 1:100, without affecting the running stability of the train It is possible to support the flange of the wheel so that the tread of the wheel is spaced apart from the wing rails 110 and 120 .

The horizontal plane 224 is made of a plane formed in a horizontal posture around the nose portion 210, between the first inclined surface 221 and the second inclined surface 222, the first inclined surface 221 and the second inclined surface 222 is formed to connect.

The second inclined surface 222 extends from the horizontal surface 224 to the rear end of the flange support part 220, and is inclined to have a negative inclination.

This second inclined surface 222 has a negative inclination of 1/60 to 1/100 from the rear with respect to the rear end point 200 mm from the actual intersection point P1 of the crossing, and is inclined so that the depth of the change section is 9 mm. is formed

The inclination of the second inclined surface 222 is preferably at least twice the train passing speed, and the tread of the wheel can be seated on the nose portion 210 without a large impact without affecting the running stability of the train.

The extension rails 310 and 320 are rails installed to extend along a reference line and a branch line from the flange bearing block 200 , and the two extension rails 310 and 320 are coupled to both sides of the flange bearing block 200 .

In the flange bearing crossing configured as described above, the rigidity of the flange bearing block 200 is supplemented and the area in which the flange of the wheel is supported is expanded at the rear end of the flange bearing block 200, even when the wheel moves left and right. Auxiliary blocks 410 and 420 for stably supporting the flange may be further included.

The auxiliary blocks 410 and 420 have a pointed tip and a thick wedge shape at the rear end, and the two auxiliary blocks 410 and 420 are symmetrical to each other with the flange bearing block 200 interposed between the two auxiliary blocks 410 and 420 on the left and right sides of the nose portion 210. It is integrally formed or additionally disposed on both sides of the flange bearing block 200 to have a structure.

As described above, the auxiliary blocks 410 and 420 integrally formed or additionally disposed on the left and right sides of the flange bearing block 200 are fixed in close contact with the wing rails 110 and 120 to supplement the rigidity of the flange bearing block 200 .

On the other hand, FIG. 6 shows the structure of the auxiliary blocks 410 and 420 formed separately from the flange bearing block 200. As such, when the flange bearing block 200 and the auxiliary blocks 410 and 420 have a separated structure, the wing rail ( The auxiliary blocks 410 and 420 disposed between the 110 and 120 and the flange bearing block 200 are fixed by the bolts fastened to the nut while penetrating the wing rails 110 and 120 and the auxiliary blocks 410 and 420 and the flange bearing block 200 . do.

The upper surfaces of the auxiliary blocks 410 and 420 are formed to expand the upper surface of the flange support 220 while matching the upper surface of the flange support 220 to stably support the flange of the wheel regardless of the left and right flow of the wheel.

As the upper surface of the rear end of the flange support part 220 is expanded by such auxiliary blocks 410 and 420, even if the wheel of the train swings left and right in the process of passing the crossing, it is possible to stably support the flange of the wheel.

In the flange bearing crossing configured as described above, a guide 230 guiding the wheel to move along a predetermined path while in contact with the wheel entering the flange support 220 may be further formed in the flange bearing block 200 .

The guide 230 is formed to protrude upward from the front end of the upper surface of the flange support unit 220 and is made to contact the side of the wheel, and is made to naturally contact and separate from the side of the moving wheel.

More specifically, the guide 230 has a pointed front end and a rear end, and is made of a diamond-shaped quadrangular pyramid including two front inclined surfaces facing forward and two rear inclined surfaces facing rear, in this case, the two rear inclined surfaces are the front It is formed to have a structure extending longer than the inclined surface.

In addition, the guide 230 is located at the center with respect to the width direction of the flange support part 220, and is formed to be spaced apart from the wing rails 110 and 120 on both sides.

The guide 230 formed in this way is in contact with the flange side of the wheel entering the flange support 220 and guides the wheel to move along a predetermined path, thereby improving driving stability of the train passing through the crossing.

Hereinafter, a process in which the wheel of a train passes through the flange bearing crossing according to the present invention will be described in detail, thereby clarifying the effect of the flange bearing crossing according to the present invention.

Fig. 8 is an exemplary view showing a state in which the wheel passes in section AA', Fig. 9 is an exemplary view showing a state in which the wheel passes in section BB', and Fig. 10 is an exemplary view showing a state in which the wheel passes in section CC'. , FIG. 11 is an exemplary view showing a state in which a wheel passes in a DD` section, and FIG. 12 is an exemplary view showing a state in which a wheel passes in a cross section EE`.

The wheel 10 of the train entering into the flange bearing crossing according to the present invention enters the flange bearing crossing while moving after picking up any one of the two wing rails 110 and 120 according to the traveling direction of the train.

As such, the wheel 10 entering the flange bearing crossing moves while the tread 11 is supported on the upper surfaces of the wing rails 110 and 120, and when the wheel 10 enters the flange support 220, the wheel 10 ) of the flange 12 comes into contact with the first inclined surface 221 or the third inclined surface 223 , and then moves along the third inclined surface 223 and the first inclined surface 221 , and the inclination of the first inclined surface 221 . as a result of which it rises gradually.

As such, as the wheel 10 rises due to the inclination of the first inclined surface 221, the tread 11 of the wheel 10 is spaced apart from the wing rails 110 and 120, and the flange 12 of the wheel 10 is While being supported by the flange support part 220 , it enters the nose part 210 through the gauge wire connection part, so that it can pass through the connection part without collision between the wheel 10 and the nose part 210 .

As a result, in the flange bearing crossing according to the present invention, the nose portion 210 is spaced apart from the wing rails 110 and 120, but the flange 12 of the wheel 10 is supported by the flange support portion 220 and passes through the gauge line connection portion. By doing so, it is possible to prevent damage to the wheel 10 or the nose unit 210 due to the collision between the wheel 10 and the nose unit 210, and noise or vibration generated in the course of passing the gauge connection part. can be significantly reduced.

Thereafter, when the wheel 10 passes the horizontal plane 224 and moves on the second inclined surface 222 , the wheel 10 gradually descends due to the inclination of the second inclined surface 222 , and accordingly, the wheel 10 ) of the tread 11 comes into contact with the upper surface of the nose portion 210 , and from this, the wheel 10 moves while being supported by the nose portion 210 and the extension rails 310 and 320 .

As described above, the present invention is a very useful invention for improving the safety of the railway by completely solving the problem in the connection part, which is the weakest point of the conventional crossing.

The present invention is not limited to the specific preferred embodiments described above, and without departing from the gist of the present invention claimed in the claims, anyone with ordinary skill in the art to which the invention pertains can implement various modifications Of course, such modifications are intended to be within the scope of the claims.

<Explanation of symbols for main parts of the drawing>
110, 120: wing rail 200: flange bearing block
210: nose portion 210a: tip
220: flange support 221: first inclined surface
222: second inclined surface 223: third inclined surface
224: horizontal plane 230: guide
310, 320: extension rail
410, 420: auxiliary block

Claims (8)

Two wing rails (110, 120) bent in a V-shape and arranged to face each other while being spaced apart;
a flange bearing block 200 fixed together with the two wing rails 110 and 120 and installed between the two wing rails 110 and 120 to have a structure separable from the two wing rails 110 and 120; and
Two extension rails (310, 320) respectively installed to extend from the flange bearing block (200) along a reference line and a branch line;
The flange bearing block 200,
An upper surface formed continuously on the upper surface of the extension rails 310 and 320 to support the tread of the wheel, and a tip 210a located between the two wing rails 110 and 120 and spaced apart from the two wing rails 110 and 120. nose portion 210; and
It is formed to extend from the nose part 210 to the head of the wing rails 110 and 120 past the throat part of the wing rails 110 and 120, and a flange support part 220 including an upper surface for supporting the flange of the wheel; Flange bearing crossings of railway turn-offs.
The method according to claim 1,
The upper surface of the flange support part 220 has a horizontal surface 224 positioned around the tip of the nose part 210, a first inclined surface 221 formed to be inclined upward from the front of the horizontal surface 224, and the horizontal surface 224. Flange bearing crossing of a railway turn-off, characterized in that it comprises a second inclined surface (222) formed to be inclined downward from the rear of the.
3. The method according to claim 2,
The first inclined surface 221 has a positive inclination of 1/60 to 1/100 from the front of the 300 mm shear point from the theoretical intersection P2 of the crossing, but is inclined so that the depth of the change section is 9 mm. become,
The second inclined surface 222 has a negative inclination of 1/60 to 1/100 from the rear with respect to the rear end point 200 mm from the actual intersection point P1 of the crossing, and is inclined so that the depth of the change section is 9 mm. Flange bearing crossing of a railway turn-off, characterized in that.
The method according to claim 1,
The nose portion 210 is a flange bearing crossing of a railway branch, characterized in that formed 9.5 mm lower than the tread of the wheel at the actual intersection (P1).
3. The method according to claim 2,
A flange bearing crossing of a railway branch, characterized in that formed at the front end of the first inclined surface (221), the third inclined surface (223) having a greater positive inclination than the first inclined surface (221) is further formed.
The method according to claim 1,
Auxiliary blocks (410, 420) that are integrally formed on the left and right sides of the flange bearing block (200) or are additionally installed on the flange bearing block (200) so as to be fixed in close contact with the wing rails (110, 120) on the left and right sides of the nose part (210) further comprising,
The upper surfaces of the auxiliary blocks 410 and 420 are formed to expand the upper surface of the flange support 220 while coincident with the upper surface of the flange support 220 so as to stably support the flange of the wheel regardless of the left and right flow of the wheel. Flange bearing crossings of railway turn-offs.
The method according to claim 1,
The guide 230 is formed to protrude from the upper surface of the front end of the flange support 220 so as to contact the side of the wheel entering the flange support 220 to guide the wheel to move along a predetermined path; characterized by further comprising: Flange bearing crossings of railway turn-offs.
8. The method of claim 7,
The guide 230 has a pointed front end and a rear end, and is made of a quadrangular pyramid including two inclined surfaces facing forward and two inclined surfaces facing the rear, and is formed to be located in the central portion based on the width direction of the flange support 220 . Flange bearing crossing of a railway turn-off, characterized in that.

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