KR101719807B1 - Sleepers for railway - Google Patents

Abstract

The present invention relates to a railway sleeper. As a rail pad (20) is installed on the upper surface and shoulders (50,50a) to fix rails are installed on the rail pad (20), the railway sleeper supports rails on a railroad. While the surface of a metal sleeper body (10) is plated with zinc, a combination hole (100) and insertion holes (110,110a) to fix the rail pad (20) are formed on the upper surface, and a vent hole (120) and a drain hole (130) are formed on a side and a floor surface respectively. The rail pad (20), fixed to the sleeper body (10), comprises: a flat part (200) placed on the upper surface of the sleeper body (10); a fixing rod (210) protruding downwards from the center of the bottom of the flat part (200), and inserted into the combination hole (100) formed in the upper part of the sleeper body (10); and a male screw (220) formed at an end of the fixing rod (210). The rail pad is fixed to the sleeper body (10) by combining a nut (40) with the male screw (220). As such, the present invention is capable of providing the safety of railroads with strong durability and solving various problems, caused by the disposal of waste, by enabling recycling.

Description

Sleepers for railway

The present invention relates to a railway sleeper, which directly supports a rail on a road floor of a railway, maintains gauge, and distributes the load to a wide range and delivers it to the road.

Generally, a track on which a train or the like travels is provided with a road bed made of gravel or crushed stone on a bedrock, and a railroad tie is fixed by arranging the sleepers at regular intervals on the road bed.

The sleepers are made of wood or concrete and are arranged at suitable intervals on the road bed. The rails are laid on top of them to fix the gap between the rails and the rails, and the load applied to the rails To the roadbed.

These sleepers used timber from the early days of railroad construction. There are no restrictions on the type of wood, but oak, chestnut, beech, pine, elm, walnut, and maple have been mainly used. The wood is good in workability, so it can supply a large amount of sleepers, but it has a problem of damaging the forests, weak durability, twisting when used for a long period of time, corruption defects and injecting creosote oil Thereby extending the service life.

In addition, the sleeping ties used in the railroad include various toxic substances including benzopyran, which is defined by the International Agency for Research on Cancer (IARC) as a human carcinogen. In addition, it is classified as designated waste because it is mostly oiled and exposed to soil and rainwater, which may cause serious environmental pollution. Because of these hazards, the sleeping ties would be discarded altogether.

A concrete sleeper was used to solve the problem of the above mentioned wooden sleepers.

The sleepers using concrete have little fear of decay and deformation, so that the rail does not twist for a certain period of time. However, there are also problems caused by concrete structures.

The concrete sleepers are constructed in such a way that a rail is connected to a large bolt through a rail pad installed on an upper part of a sleeper, and the outer wall of the bolt is wrapped with a plastic filler. As it is formed on the upper surface of the sleeper, water dissolved by rainfall or snowfall easily penetrates into the insertion hole.

If the inflow of water is continued, the strength of the concrete structure will be adversely affected. In particular, in winter, the inflow water will expand while freezing, causing cracks in the concrete structure, do.

Therefore, there is a problem that the waterproof foam material or the grease, which is a semi-solid lubricant, must be put in the empty space between the bottom of the bolt and the plastic before filling it.

In addition, the concrete structure has high compressive strength, but flexural strength and impact strength are relatively weak, so that the alternate load of the railway vehicle is affected by the bending and impact load So it is not really suitable as a material for sleepers. When used for a long period of time, a part of the steel is broken or separated so that the inner reinforcing frame is exposed by weathering erosion, and the durability is considerably weakened.

In addition, the replacement of concrete sleepers can not be recycled. Therefore, it is necessary to dispose of all the sleepers, and the waste disposal cost is considerable. The selection of waste landfill is easy because the complaints are caused by the interests of local governments and local residents. no.

KR 20-0404784 Y1 (2005.12.22) KR 10-1150786 B1 (2012. 05. 22.)

An object of the present invention is to provide a railroad sleeping rail which can easily be installed, accurately maintains a gap between rails and rails with respect to an alternating load of a railroad car, and can safely transmit the load of a train applied to the railroad to the roadbed .

Another object of the present invention is to provide a railway sleeper capable of maintaining rigid rigidity and durability without being deformed and corroded, capable of recycling all the waste at the time of disposal, eliminating the cost of waste treatment and solving all the problems do.

Technical features of the present invention to achieve the object of the present invention are as follows: a rail pad is provided on an upper surface, and a shoulder for fixing the rail on the rail pad is provided to support a railroad rail The sleeper main body of the railway sleeper is formed of a metallic material, and the outer surface of the sleeper main body is coated with a metal material different from the sleeper main body.

Preferably, the sleeper body and the other kind of metallic material coating are made of zinc.

Further, the present invention is characterized in that the rail pad and the fixing member are welded together to the sleeper body.

Further, according to the present invention, there is provided a fixing pad for fixing a rail pad to the sleeper main body, wherein the rail pad is formed with a fixing rod having a male screw protruding downward from the center of the bottom surface thereof, And is fastened with the same fastening member.

According to another aspect of the present invention, there is provided a railroad car comprising: an upper seating groove on which a rail pad is seated; and a lower seating groove on which a fixing member is seated.

Further, the present invention is characterized in that drainage holes are formed on the side surface and the bottom surface of the sleeper main body.

According to the railway sleeper of the present invention, there is no possibility that the sleeper is formed of a galvanized metal material and cracks are broken in the winter season, and the distance between the rail and the rail is accurately maintained with respect to the alternate load of the railway vehicle, So that it can be safely transmitted to the roadbed through the road.

In addition, at the time of disposal, all the sleepers collected can be recycled by metal casting, thereby preventing secondary environmental pollution, saving costs associated with waste disposal, There is an effect that all the problems do not occur.

1 is an exploded perspective view of the present invention.
FIG. 2 is an exploded perspective view of a part of the present invention. FIG.
3 is a sectional view of the present invention.
4 is an enlarged cross-sectional view of a part of the present invention;
5 is an exploded perspective view showing another embodiment of the present invention.

The features and advantages of the present invention will become more apparent from the following detailed description of the present invention when taken in conjunction with the accompanying drawings.

Hereinafter, embodiments of the present invention will be described.

FIG. 1 is an exploded perspective view of the present invention, FIG. 2 is an exploded perspective view of a part of the present invention, and FIG. 3 is a sectional view of the present invention.

As shown in this figure, the railway sleeper of the present invention is made up of a sleeper body 10, a rail pad 20 and a fixing member 30.

As the fixing means for fixing the rail pad 20, coupling holes 100 and 100a vertically penetrating the upper and lower portions of the sleeper main body 10 are formed in the sleeper main body 10, respectively.

On both sides of the coupling hole 100 formed at the upper portion, insertion holes 110 and 110a for installing the shoulders 50 and 50a for fixing the rails are formed.

A vent hole 120 is formed in a side surface of the sleeper body 10, and a drain hole 130 is formed in a bottom surface of the sleeper main body 10.

The vent hole 120 is formed on the side surface to minimize rainwater that can flow into the sleeper main body 10 and is introduced into the sleeper main body 10 through the insertion holes 110 and 110a, Rainwater can be discharged while evaporating.

In addition, when the temperature of the sleeper main body 10 made of a metallic material is raised by sunlight and solar heat, the ventilation hole 120 allows the hot air inside to be discharged to the outside, Thereby preventing heat distortion.

The drain hole 130 is formed on the bottom surface of the sleeper main body 10 so that rainwater or the like introduced into the sleeper main body 10 can be immediately discharged to the outside.

This sleeper main body 10 can be manufactured by a method of cast molding, drawing, extrusion or the like using a metal material, preferably steel, and more preferably, It is preferable to form the steel sheet by bending. The surface is plated to improve rust and corrosion resistance.

Further, the sleeper main body 10 may be formed in a hollow lozenge shape to improve strength and prevent deformation. For example, in the case of the round barrel, the barrel barrel having hollow hollows exhibits a higher bending strength than the barrel barrel full of the hollow barrel, The weight can be reduced and the transportation and the field installation work can be facilitated.

The plating is preferably made of zinc (Zn) which is excellent in the sound-releasing power of steel and low in manufacturing cost.

The zinc plating may be selected from the group consisting of electroplating, hot dip galvanizing, spraying, shrinking, mechanical plating and the like. In order to improve the corrosion resistance, a chromate treatment may be additionally performed after plating .

The rail pad 20 includes a flat plate portion 200 having a flat plate shape and seated on the upper surface of the sleeper body 10 and a flat portion 200 projecting downward from the bottom center of the flat portion 200, And a male screw 220 inserted into the coupling hole 100a formed at the lower portion of the sleeper main body 10. The male screw 210 is inserted into the coupling hole 100 formed at the upper portion of the sleeper main body 10, .

In order to install the shoulders 50 and 50a for fixing the rail, the flat plate portion 200 of the rail pad 20 is provided with bolts (not shown) at positions matching the insertion holes 110 and 110a formed in the sleeper body 10, Holes 230 and 230a are perforated.

The fixing member 30 is formed in a flat plate shape and a through hole 300 through which the male thread 220 of the rail pad 20 is inserted is formed at the center thereof.

The thickness of one surface of the sleeper body 10 and the thicknesses of the flat plate portion and the fixing member 30 of the rail pad 20 are not particularly limited. However, in consideration of the safety of the rail and the railway vehicle, The thickness d of the flat plate portion 200 and the fixing member 30 of the rail pad 20 is 1/10 to 1/5 of the thickness D of the sleeper main body 10, .

When the thickness d of the flat plate portion 200 and the fixing member 30 is less than 1/10 of the thickness D of the sleeper body 10, the flat plate portion 200 and the fixing member 30 The thickness of the flat plate portion 200 and the thickness of the fixing member 30 may be varied depending on the thickness of the flat plate portion 200 and the fixing member 30, (d) is greater than 1/5 of the thickness (D) of the sleeper main body (10), the protruding portions are relatively increased relative to the sleeper main body, thereby increasing the distance between the rail and the sleeper main body It is undesirable.

For example, the thickness D of one surface of the sleeper body 10 may be 6 to 8 cm within the range satisfying the above-described configuration. In this case, the flat plate portion 200 and the fixing member 30 (D) of 0.8 to 1.2 cm.

If the thickness of the sleeper main body 10 is less than 6 cm, the bending strength is insufficient and it is not easy to cope with the loads of the upper rail and the railway vehicle. If the thickness is more than 8 cm, However, since the material cost is increased and the transportation is difficult due to the weight, it is not preferable and the manufacturing process is not easy due to the excessive thickness.

When the thickness d of the flat plate portion 200 and the fixing member 30 of the rail pad 20 is less than 0.8 cm, the flat plate portion 200 and the fixing member 30 are relatively thin, It is not preferable to maintain the rigidity after welding with the body 10, and the bending strength may be relatively weak due to the relatively weak bending strength, which is undesirable. The flat plate portion 200 of the rail pad 20, When the thickness d of the rail 30 is greater than 1.2 cm, the projected portions are relatively increased relative to the railroad tie body, which increases the distance between the rail and the railroad tie body, It is not desirable.

4, the male thread 220 of the rail pad 20 passing through the coupling holes 100, 100a of the sleeper main body 10 is inserted into the through hole of the fixing member 30, And then fastened to the nut 40 through the through hole 300 so that the sleeper body 10 and the rail pad 20 can be engaged and fixed.

After the nut 40 is fastened, the contact interface between the sleeper body 10 and the rail pad 20 and the contact interface between the sleeper body 10 and the fixing member 30 are welded . Such welding may be accomplished by first welding the contact interface before the nut 40 is fastened, and then fastening the nut 40.

The shoulders 50 and 50a are for fixing the rails (not shown). The shoulders 50 and 50a are provided with clip fixing grooves 500 and 500a on a horizontal plane. Fixing protrusions 510 and 510a protrude from the bottom surface.

A male screw may be formed on the outer circumferential surface of the fixing protrusions 510 and 510a and may be formed in a rod shape without male screw.

The fixing protrusions 510 and 510a of the shoulders 50 and 50a are fastened to the bolt holes 230 and 230a of the rail pad 20 fixed to the sleeper body 10, (110, 110a).

Although the rail pad 20, the fixing member 30 and the shoulders 50 and 50a are formed on one side of the sleeper body 10 in the above description, the same structure is symmetrical to the opposite end of the sleeper body 10 .

5 shows another embodiment of the present invention in which an upper seating groove 140 on which the rail pad 20 is seated is formed on the upper surface of the sleeper body 10 and a reinforcing projection 160 is formed in the longitudinal direction of the sleeper. And a bottom seating groove 150 on which the fixing member 30 is seated is formed on the bottom surface of the sleeper body 10.

According to this embodiment, when the rail pad 20 is seated in the upper seating groove 140 of the sleeper main body 10, the same horizontal surface as the upper surface of the sleeper main body 10 is formed. When the fixing member 30 is seated in the lower seating groove 150 of the sleeper body 10, the fixing member 30 has the same horizontal surface as the lower surface of the sleeper body 10.

The rail pad 20 and the fixing member 30 can be more firmly coupled to the sleeper body 10 through the upper seating groove 140 and the lower seating groove 150, The bending strength and the impact strength of the main body 10 are further increased.

The upper seating groove 140, the lower seating groove 150, and the reinforcing projection 160 may be formed by press working before the rail body 10 is bent and formed.

10: sleeper body 20: rail pad
30: fixing member 40: nut
50, 50a: Shoulder 100, 100a: Coupling ball
110, 110a: insertion hole 120:
130: drainage hole 140: upper seat groove
150: lower seating groove 160: reinforcing projection
200: flat plate part 210: fixing rod
220: Male thread 230, 230a: Bolt hole
300: through hole 500, 500a: clip fixing groove
510, 510a: Fixing projection

Claims (3)

A rail pad 20 is provided on the upper surface of the sleeper body 10 on which an outer surface is coated with another kind of metallic material and a shoulder 50 or 50a for fixing the rail on the rail pad 20 A railway sleeper for supporting a rail installed on a railway track,
The fixing protrusions 510 and 510a of the shoulders 50 and 50a are fixed to the bolt holes 230 and 230a of the rail pad 20 fixed to the sleeper main body 10 and the insertion holes 110 and 110a of the sleeper main body 10, And is coupled to the sleeper body 10,
The sleeper body (10)
A vent hole 120 and a drain hole 130 are formed on a side surface and a floor surface, respectively, and coupling holes 100 and 100a for fixing the rail pad 20 are formed on a top surface and a bottom surface,
The rail pad (20)
The fixing bar 210 is inserted into the coupling hole 100 and then the male screw 220 is inserted into the coupling hole 210. [ 100a and the through hole 300 of the fixing member 30 and is fastened to the sleeper body 10 by a nut 40,
The upper surface of the sleeper main body 10 is formed with an upper seating groove 140 on which the rail pad 20 is seated and a reinforcing protrusion 160 is formed in the longitudinal direction of the sleeper, And a bottom seating groove (150) on which the fixing member (30) is seated is formed on the bottom surface.
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