KR20070034277A - Welding Crossing for Railway Turnout and Manufacturing Method Thereof - Google Patents

Abstract

The present invention is to produce the strength of the nose portion that receives the most load in the crossover of the tapping machine made of high-strength steel of high manganese grade to maintain the robustness and at the same time to maintain the rail head top gradient 1:20 concentrated load by the wheel Welded crossing for railway turnouts to protect the nose part by aligning the top face gradient with the gradient of the crossing front and rear joint rails, to take full advantage of the integrated manganese crossover, and to replace the remaining rails except the nose part with an assembly. The purpose is to provide a manufacturing method.

Welding crossing for railroad turnout according to the present invention for achieving the above object is a welding cross consisting of a wing rail disposed in the X-shape and a V-shaped nose rail disposed inside the wing rail, the nose rail And a spacer made of high strength steel and integrally formed with the nose rail between the wing rail; It characterized in that it consists of a short nose rail coupled to the end of the nose rail by flash butt welding.

In addition, the welding crossing manufacturing method for railroad turnout according to the present invention for achieving the above object is a welding crossing manufacturing method consisting of a wing rail disposed in the X-shape and a V-shaped nose rail disposed inside the wing rail. In the manufacturing process, the nose rail is made of high-strength steel, and at the same time, the spacer sandwiched between the wing rails is manufactured as a single piece, and a short nose rail is connected to the end of the nose rail by flash butt welding. do.

Tap, Crossing, Wing Rail, Nose Rail, Spacer

Description

Weld crossing and its manufacture method for railroad turnout

1 is a plan view showing a portion of the crossing is installed on the train tracks,

Figure 2 is a plan view showing a crossing for a conventional railway turnout 1,

Figure 3 is a plan view showing a crossing for a conventional railway turnout 2,

Figure 4 is a plan view showing a welding cross for a rail fork according to the present invention,

5 is a cross-sectional view taken along the line A-A of FIG.

6 is a cross-sectional view taken along the line B-B of FIG.

7 is a plan view illustrating a nose rail of a welding cross for a railroad turnout according to the present invention;

8 is a cross-sectional view taken along the line A-A of FIG.

9 is a cross-sectional view taken along the line B-B of FIG.

10 is a cross-sectional view taken along the line C-C of FIG.

11 is a cross-sectional view taken along the line D-D of FIG. 7;

12 is a cross-sectional view taken along the line E-E of FIG.

FIG. 13 is a sectional view taken along the line F-F in FIG. 7; FIG.

Explanation of symbols on the main parts of the drawing

10: wing rail 20: nose rail

30: spacer 40: short nose rail

50: crossing

TECHNICAL FIELD The present invention relates to a welding cross section for a railroad tapping machine and a method for manufacturing the same, and more particularly, to a welding cross section for a railroad tapping machine which maintains robustness by making a nose portion that receives the most load in the crossing of the tapping machine with high strength steel. will be.

In general, as shown in FIG. 1, the wheel crosses the X-shape at the center of the diverter 100 in which one track is divided into two tracks to switch the driving direction of the train according to the direction of the train selection. It is made of a part that passes, and this part is called the crossing 101 is to be connected in a state configured separately from the existing straight rail.

However, in the crossing 101, the intersection 101 of the crossing portion 101, which is the tip of the nose portion 102, is narrow in width, so that the cross section 101 lacks a lot of strength compared to other track portions. The number of wheel passes is twice that of the other tracks.

Therefore, the fatigue and wear phenomenon of the nose part is very severe and the life is very short, so durability is particularly required.

A conventional example of constituting the crossing is a bolted assembly cross 110 as shown in FIG. 2, which includes a long nose rail 112 and a long nose rail 112 that process a rail to form a crossing tip. After inserting a short nose rail 113 slightly behind the distal end of the), the existing wing rails (200, 201) is to combine with the bolt.

Conventional bolted assembly crossing 110 as described above has a limitation that the strength of the cross-section nose portion 111, which is a portion that takes a high load by processing the existing rail and use it as a material has a low wear resistance.

In addition, since the nose rails 112 and 113 and the wing rails 200 and 201 are assembled using only the bolts and the space keeping block 114, it is difficult to maintain the track linearity due to the deterioration of accurate positioning and precision between parts. Since the cross is constructed by cutting the existing rail, there is a disadvantage in that it is difficult to maintain the height on the horizontal plane according to the gradient (1:40, 1:20) and thus the horizontal surface of the continuous line in the existing general section.

And another example of the conventional cross-linking configuration, as shown in Figure 3, there is an integral cross 120, which casts high manganese steel to form the entire cross 120 including the wing rails (200, 201), and then the cross Extending to 120 is to use the existing straight rail connection.

In the case of the integrated crossing 120 is made of high manganese steel of high strength, it is strong and can maintain the slope of the upper surface of the line, there is an advantage that can maintain the gradient between the diverter bulb, but in the front and rear end due to the characteristics of the material of high manganese steel It is difficult to connect the existing rail by welding, and since the intermediate metal for dissimilar material welding must be used, the field welding is extremely limited when welding this part.

Therefore, the present invention has been made to solve the problems described above, while maintaining the strength by making the strength of the nose portion that receives the most load in the crossing of the tapping machine made of high-strength steel of high manganese grade Maintain the rail top face gradient to 1:20 to distribute the concentrated load by the wheels to protect the nose section and match the top face gradient to the crossover front and rear joint rails to take advantage of the integrated manganese crossover. It is an object of the present invention to provide a welding crossover for a railroad diverter that replaces rails with an assembled type and a method of manufacturing the same.

Welding crossing for railroad turnout according to the present invention for achieving the above object is a welding cross consisting of a wing rail disposed in the X-shape and a V-shaped nose rail disposed inside the wing rail, the nose rail And a spacer made of high strength steel and integrated with the nose rail between the wing rail and the wing rail; It characterized in that it consists of a short nose rail coupled to the end of the nose rail by flash butt welding.

In addition, the welding crossing manufacturing method for railroad turnout according to the present invention for achieving the above object is a welding crossing manufacturing method consisting of a wing rail disposed in the X-shape and a V-shaped nose rail disposed inside the wing rail. In the manufacturing process, the nose rail is made of high-strength steel and at the same time the spacer sandwiched between the wing rail is manufactured as a cast integral type, and a short nose rail is connected to the end of the nose rail by flash butt welding. It is done.

In addition, by adjusting the length of the nose rail is characterized in that it is also possible to fasten directly to the joint plate without welding.

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

Figure 4 is a plan view showing a welding cross for a railroad diverter according to the present invention, Figure 5 is a cross-sectional view taken along the line AA of Figure 4, Figure 6 is a cross-sectional view taken along the line BB of Figure 4, Figure 7 is a railroad turnout according to the present invention Fig. 8 is a cross-sectional view taken along the line AA of FIG. 7, FIG. 9 is a cross-sectional view taken along the line BB of FIG. 7, FIG. 10 is a cross-sectional view taken along the line CC of FIG. 7, and FIG. DD line sectional drawing, FIG. 12 is EE line sectional drawing of FIG. 7, FIG. 13 is FF line sectional drawing of FIG.

As shown in these figures, the welding crossing for railroad diverters according to the present invention includes a wing rail 10 arranged in an X shape and a V-shaped nose rail 20 disposed inside the wing rail 10. In the welding crossing configured,

The nose rail 20 is made of high-strength steel and at the same time the spacer 30 is integrated with the nose rail between the wing rail (10); It consists of a short nose rail 40 coupled to the end of the nose rail 20 by flash butt welding.

In other words, the welding cross section for railroad diverter according to the present invention is manufactured by the high strength steel with the high strength of the nose part receiving the most load in the cross section in view of the toughness and durability represented by the characteristics of the integral manganese crossing, and maintaining the rail It is a feature of the technical idea of the present invention that the durability is improved over the prefabricated crossing.

Here, the spacer 30 has a structure in which a plurality of spacers have the same shape as the wing rail 10 abdominal surface and a close contact with the wing rail 10 from the crossing 50 to the rear end.

The spacer 34 is integrally cast on the nose rail 20 assembled with the wing rail 10.

In addition, as shown in Figure 2, the conventional rail prefabricated cross has a structure in which the spacer is separated in coupling the rail and the rail, but in the welding crossing for railroad turner according to the present invention, the rail by integration of the spacer 30 It is in close contact with the upper, sewer and fish surface to generate a strong coupling force to attenuate the axial force transmitted to the connection bolt, and also easy maintenance by the integration of the spacer 30, the nose portion and the wing rail (10) There is an effect that can maintain a precise gap between the).

On the other hand, the head top surface gradient of the nose rail 20 is gradually changed from 1/20 to 1/40 to form a head top gradient in the crossing 50, the same as the general rail shape in the rear end welding of the cross (50) Formed structure.

Therefore, the head top surface gradient of the nose rail 20 as described above is maintained at 1:20 to distribute the concentrated load by the wheel to protect the nose part, and the end surface head top surface gradient is changed to 1:40, thereby crossing 50. By matching the gradient with the front and rear joint rails, a step between the rails does not occur, so that the service life of the joint can be extended, and noise is substantially reduced.

Welding crossing manufacturing method for railroad diverter according to the present invention having the configuration as described above is the wing rail 10 and the V-shaped nose rail 20 disposed inside the wing rail 10 is arranged in an X shape. In the manufacturing method of the welding cross consisting of, the nose rail 20 is made of high-strength steel and at the same time the spacer member 30 sandwiched between the wing rail 10 is manufactured as a cast integral type, the nose rail (20) Short nose rail (40) to the end of the) is characterized in that it is manufactured by connecting the flash butt welding.

That is, by removing the joint part in the crossing 50 by flash butt welding, there is an effect of improving the riding comfort of the vehicle and improving the life of the crossing 50.

In addition, the front and rear end length at the theoretical intersection of the crossing 50 is the same as before, there is an effect that enables the field welding of the crossing.

As described above, the welding crossing for railroad diverter and the manufacturing method thereof according to the present invention have the following effects.

First, the present invention has the effect of maintaining the high toughness and wear resistance of the nose portion by manufacturing a high-strength steel with a high strength of the nose portion receiving the most load in the crossing.

Second, the present invention maintains the gradient of the upper surface of the rail head 1:20 to distribute the concentrated load by the wheel to protect the nose part, and the gradient of the head upper surface to 1:40 gradient to the crossing front and rear junction rail There is a matching effect.

Third, the present invention is integrally cast with the rail by casting the gap maintaining block of the wing rail of the nose unit with the nose unit, there is an effect of generating a strong bonding force in close contact with the upper, sewer and fish surface of the rail.

Fourth, the present invention has the advantage of easy maintenance according to the integration of the interval maintenance block, attenuate the axial force of the train on the connection bolt, and also allows precise gap maintenance of the nose portion and the wing rail.

Fifth, the present invention has the effect of not only improving the riding comfort of the vehicle but also extending the life of the crossing by removing the joint portion in the crossing through flash butt welding.

Sixth, the present invention has the advantage that the front and rear end length at the intersection of the crossing is the same as the existing, and can be welded in the field when connecting the crossing and the rail.

Claims (5)

In the welding crossing composed of a wing rail 10 arranged in an X shape and a V-shaped nose rail 20 arranged inside the wing rail 10, The nose rail 20 is made of high-strength steel and at the same time the spacer 30 is integrated with the nose rail between the wing rail (10); Weld crossing for railroad turnout, characterized in that consisting of a short nose rail (40) coupled to the end of the nose rail (20) by flash butt welding. The method of claim 1, The spacer 30 is integrally cast with the nose rail and has a same shape as the wing rail abdominal surface of the portion contacting the wing rail from the crossing intersection to the rear end, and a plurality of weld crossings for railway diverters are formed to be in close contact. The method of claim 1, The head top slope of the nose rail 20 is formed so as to form the same gradient as the rail connected to the crossing end at 1/20, so that the head top slope in the crossing is formed. In the welding crossing manufacturing method consisting of the wing rail 10 arranged in the X-shape and the V-shaped nose rail 20 disposed inside the wing rail 10, The nose rail 20 is made of high-strength steel, and at the same time, the spacer 30 sandwiched between the wing rails 10 is manufactured as a cast integral type, and a short nose rail 40 at the end of the nose rail 20 is formed. The manufacturing method of the welding crossing for railroad turnover, characterized in that the manufacturing by connecting by flash butt welding. The method of claim 4, wherein The nose rail (20) is a method for manufacturing a welding cross section for a railway forklift, characterized in that formed in the cross-sectional end of the welding portion in the same way as the general rail shape.

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