KR101144244B1 - Precast rail apparatus and manufacturing method thereof - Google Patents

Abstract

PURPOSE: A precast rail system and a manufacturing method thereof are provided to extend a service life by reducing the expansion and contraction of a rail unit using a rubber unit. CONSTITUTION: A precast rail system(100) comprises a case unit(110), a rail unit(120), a damping pad unit(130), and a rubber unit(140). The case unit fixes the position of the rail unit. The rail unit is arranged inside the case unit. The damping pad unit is arranged between the case and rail units and reduces shock applied from a train. The rubber unit surrounds the rail unit inside the case unit.

Description

Precast rail device and its manufacturing method {PRECAST RAIL APPARATUS AND MANUFACTURING METHOD THEREOF}

The present invention relates to a precast rail device and a method for manufacturing the same, and more particularly, to a precast rail device and a method for manufacturing the same that can be integrated into a single module and maximize the dustproof effect.

Typically, rails of railroads are intermittently installed with sleepers on gravel beds or concrete track slabs, and fixing rails to sleepers using rail fixing devices such as fixing bolts and spring clips.

In this case, the wheels of a very heavy train pass through the sleepers sequentially, applying a large force to the sleepers at regular intervals, causing vibrations, and the vibrations propagate to the surrounding area through the sleepers and the track slab, which causes damage to the structure and the surrounding precision equipment. It causes various vibration related problems such as disturbance of operation and generation of structure borne noise.

In addition, the shock vibration generated when the wheel passes the rail joint is transmitted to the surroundings through the propagation path as described above, which causes noise problems with the vibration. In addition, the noise between the rail and sleepers, structural noise caused by the vibration of the rail itself occurs, causing noise pollution. The vibration and noise problems of railways cause more serious problems in historic buildings, bridges and tunnels.

The above technical configuration is a background art for helping understanding of the present invention, and does not mean a conventional technology well known in the art.

Various solutions have been proposed to solve the vibration and noise problems of the railway, but all of them have to be assembled at the site directly, so many of them are affected by the on-site environment. In order to solve the vibration and noise, there is a problem in that it is difficult to manufacture a precise mechanism.

Therefore, there is a need for improvement.

An object of the present invention is to provide a precast rail device and a method of manufacturing the same that can be integrated into a single module and maximize the anti-vibration effect.

Precast rail device according to the first aspect of the present invention comprises: a case portion; A rail unit disposed inside the case unit; A dustproof pad portion disposed between the case portion and the rail portion; And a rubber part surrounding the rail part in the case part.

Preferably, the dustproof pad part has a side part spaced apart from an inner part of the case part.

More preferably, the case portion is provided with a protrusion that protrudes toward the rail portion on the inner side.

More preferably, the protrusions are hemispherical in cross section.

More preferably, the rail portion upper head; Lower support; And a connecting portion connecting the head and the support, wherein the protrusion is formed to protrude toward the connecting portion.

Preferably, the rail unit upper head; Lower support; And a connection part connecting the head and the support, wherein the rubber part has a drain groove disposed on an upper side of the head and lower than an upper end of the head.

In addition, the precast rail device of the present invention comprises: a case having a protrusion having a hemispherical cross-section protruding from the inner side, made of concrete, the cross section is formed in a ㅛ shape; A rail part disposed at an inner center of the case part and having an upper head, a lower support, and a connection part connecting the head and the support; An anti-vibration pad portion disposed between an upper surface of the case portion and a lower surface of the support, the side portion of which is spaced apart from the inner portion of the case portion; And a rubber part surrounding the rail part while being in close contact with the case part, having a drain groove part disposed on one side of an upper side of the head and lowering the top of the head to drain water, and having a wheel groove part on the other side of the upper side. .

Precast rail device according to a second aspect of the present invention comprises: a case portion; A rail unit disposed inside the case unit; And a rubber part surrounding the rail part in the case part.

Preferably, the lower rail portion is spaced apart from the upper portion of the case portion by the rubber portion.

Preferably, the case portion is provided with a protrusion that protrudes toward the rail portion on the inner side.

More preferably, the protrusions are hemispherical in cross section.

More preferably, the rail portion upper head; Lower support; And a connecting portion connecting the head and the support, wherein the protrusion is formed to protrude toward the connecting portion.

Preferably, the rail unit upper head; Lower support; And a connection part connecting the head and the support, wherein the rubber part has a drain groove disposed on an upper side of the head and lower than an upper end of the head.

In addition, the precast rail device according to the present invention includes a protrusion having a hemispherical cross section protruding from the inner side, the case portion is made of concrete, the cross section is formed in a ㅛ shape; A rail part disposed at an inner center of the case part and having an upper head, a lower support, and a connection part connecting the head and the support; Surrounding the rail portion while being in close contact with the case portion, and disposed on one side of the upper side is lower than the upper end of the head is provided with a drain groove for draining water, the other side of the upper side is provided with a wheel groove portion, the lower surface of the support And a rubber part interposed between an upper surface of the case part and spaced apart from the support and the case part.

A precast rail device according to a third aspect of the present invention includes: a rail portion; An anti-vibration pad unit disposed below the rail unit; And a rubber part surrounding the rail part and the dustproof pad part.

Preferably, the rail unit upper head; Lower support; And a connection part connecting the head and the support, wherein the rubber part has a drain groove disposed on an upper side of the head and lower than an upper end of the head.

A precast rail device according to the fourth aspect of the present invention comprises: an upper head; Lower support; And a rail unit having a connection portion connecting the head and the support. And a rubber part surrounding the rail part and having a drain groove part disposed on an upper side of the head and lower than an upper end of the head.

According to a first aspect of the present invention, there is provided a method of manufacturing a precast rail device, including: arranging a dustproof pad part in a case part; Arranging a rail unit on an upper portion of the dustproof pad unit; And injecting molten rubber into the case part to form a rubber part surrounding the rail part while being in close contact with the case part.

Preferably, the step of arranging the dustproof pad portion, the side surface of the dustproof pad portion is disposed so as to be spaced apart from the inner portion of the case portion.

According to a second aspect of the present invention, there is provided a method of manufacturing a precast rail device, comprising: arranging a rail part inside a case part; And injecting molten rubber into the case part to form a rubber part surrounding the rail part while being in close contact with the case part.

Preferably, in the arranging of the rail part, the rubber part is interposed between the lower part of the rail part and the upper part of the case part to arrange the lower part of the rail part to be spaced apart from the upper part of the case part.

According to a third aspect of the present invention, there is provided a method of manufacturing a precast rail device, comprising: arranging a dustproof pad part in a lower mold; Arranging a rail unit on an upper portion of the dustproof pad unit; And injecting molten rubber into the lower mold to form a rubber part surrounding the dustproof pad part and the rail part.

Preferably, the step of arranging the anti-vibration pad portion, the side of the anti-vibration pad portion is disposed so as to be spaced apart from the inner portion of the lower mold.

According to the present invention, a precast rail device including a rail part and a rubber part can be integrated into a single module, thereby improving product precision regardless of the field environment, and reducing transportation costs. Standardization of the configuration can be easily achieved.

According to the present invention, it is possible to cushion the shock applied to the train by the dustproof pad part.

According to the present invention, since the rainwater can be discharged immediately by forming the drain groove on the upper side of the rubber portion, it is possible to prevent the rail portion or the circumference of the rail portion from being frozen by rainwater.

According to the present invention, since the rubber portion is formed to surround the rail portion, it is possible to reduce the extent that the rail portion is stretched according to the temperature, thereby extending the life of the product.

According to the present invention, since the rubber part is made of rubber and the displacement of the rubber part is constrained by the case part, it is possible to evenly distribute the impact applied from the train in the rubber part, thereby maximizing the dustproofing effect.

1 is a cross-sectional view of a precast rail device according to a first embodiment of the present invention.
2 is a perspective view of a precast rail device according to a first embodiment of the present invention.
3 is a cross-sectional view of a precast rail device according to a second embodiment of the present invention.
4 is a perspective view of a precast rail device according to a second embodiment of the present invention.
5 is a cross-sectional view of a precast rail device according to a third embodiment of the present invention.
6 is a perspective view of a precast rail device according to a third embodiment of the present invention.
7 is a view showing a process of manufacturing a precast rail device according to a first embodiment of the present invention.
8 is a view showing a process of manufacturing a precast rail device according to a second embodiment of the present invention.
9 is a view showing a process of manufacturing a precast rail device according to a third embodiment of the present invention.

Hereinafter, an embodiment of a precast rail device and a method of manufacturing the same according to the present invention will be described with reference to the accompanying drawings.

In this process, the thickness of the lines or the size of the components shown in the drawings may be exaggerated for clarity and convenience of description.

In addition, terms to be described later are terms defined in consideration of functions in the present invention, which may vary according to a user's or operator's intention or custom.

Therefore, the definitions of these terms should be made based on the contents throughout the specification.

1 is a cross-sectional view of a precast rail device according to a first embodiment of the present invention, Figure 2 is a perspective view of a precast rail device according to a first embodiment of the present invention. 3 is a cross-sectional view of a precast rail device according to a second embodiment of the present invention, and FIG. 4 is a perspective view of a precast rail device according to a second embodiment of the present invention. 5 is a cross-sectional view of a precast rail device according to a third embodiment of the present invention, and FIG. 6 is a perspective view of a precast rail device according to a third embodiment of the present invention. 7 is a view showing a process of manufacturing a precast rail device according to a first embodiment of the present invention, Figure 8 is a view showing a process of manufacturing a precast rail device according to a second embodiment of the present invention, 9 is a view showing a process of manufacturing a precast rail device according to a third embodiment of the present invention.

1, 2 and 7, the precast rail device 100 according to the first embodiment of the present invention includes a case part 110, a rail part 120, a dustproof pad part 130, and a rubber part. And 140.

The case part 110 is made of concrete, and forms the outer shape of the precast rail device 100. The case part 110 integrates the precast rail device 100 into one module by embedding the rail part 120, the anti-vibration pad part 130, and the rubber part 140.

Therefore, if the rail unit 120, the anti-vibration pad unit 130, the rubber unit 140 and the case unit 110 need to be assembled at the factory by transporting one module manufactured in the factory without having to assemble them separately at the construction site. Therefore, it is possible to block the assembly error inevitably generated during assembly in a harsh field environment can improve the product precision.

In addition, since the rail unit 120, the anti-vibration pad unit 130, the rubber unit 140, and the case unit 110 need not be transported, the single precast rail device 100 may be transported. Cost savings can be achieved. In addition, movement becomes easy even in construction site.

In addition, the dimensions of the rail unit 120, the dustproof pad unit 130, the rubber unit 140 and the case unit 110 can be adjusted according to the site environment, and the adjustment is made in the factory, not the site, each configuration Can be standardized and refined.

The case part 110 fixes the position of the rail part 120. The case part 110 is provided with the rubber part 140 so that the rail part 120 is fixed to its original position without shaking, thereby suppressing left and right and vertical shaking of the rail part 120.

In this embodiment, the case portion 110 is formed in a cross-sectional shape, and extends along the longitudinal direction of the rail portion 120.

The rail part 120 is disposed in the case part 110. The rail part 120 is disposed at the center of the case part 110 so as not to be biased toward the left or the right. The rail unit 120 includes a head 121, a connection part 122, and a support 123.

The head 121 is an upper portion of the rail portion 120 that abuts the wheels W such as a train, and is made of a material having excellent wear resistance and high strength. The support 123 is a lower portion of the rail 120, and has a wider left and right widths than the heads 121 and the connection portion 122 so as to be stably disposed in the case 110. The connection portion 122 is a central side portion of the rail portion 120 connecting the head 121 and the support 123.

The case unit 110 includes a protrusion 111 protruding toward the rail unit 120 at an inner side thereof. In detail, the protrusion 111 protrudes toward the connection portion 122 having a narrower left and right width than the head 121 and the support 123. The protrusion 111 may reduce the distance between the connection part 122 and the inner part of the case part 110.

The dustproof pad part 130 is disposed between the case part 110 and the rail part 120. The anti-vibration pad 130 is disposed between the inner upper side of the case unit 110 and the lower side of the support 123 to cushion the load or impact applied by the train.

The anti-vibration pad part 130 supports the rail part 120 and is deformed while being compressed by the wheels W passing through the rail part 120. Deformation of the anti-vibration pad 130 is made in the longitudinal width is reduced and the width is increased in comparison with the original shape.

Through such a deformation, the dustproof pad unit 130 absorbs vibrations or shocks caused by the train. The vibration pad 130 is disposed such that the side part is spaced apart from the inner part of the case part 110 so that the deformation of the vibration pad part 130 may occur inside the case part 110.

That is, the left part (see FIG. 1) of the dustproof pad part 130 is spaced apart from the left side of the inside of the case part 110, and the right side of the dustproof pad part 130 is spaced apart from the right side of the inside of the case part 110. do.

The rubber part 140 is positioned between the side part of the dustproof pad part 130 and the inner part of the case part 110. The rubber part 140 is made of a deformable material so that the vibration pad 130 may be deformed. In this embodiment, the rubber part 140 includes rubber.

The rubber part 140 surrounds the rail part 120 in the case part 110. The rubber part 140 is formed by injecting molten rubber into a space between the case part 110 and the rail part 120 after the rail part 120 is disposed inside the case part 110.

The protruding portion 111 of the case portion 110 is formed in a hemispherical cross section to suppress the generation of bubbles when the molten rubber solidifies.

When the protrusions 111 form an angular shape such as a rectangular parallelepiped, bubbles are generated because the molten rubber does not reach a portion where the two surfaces contact each other. In the present embodiment, since the protrusion 111 protrudes while forming a smooth curved surface, bubbles are suppressed as the molten rubber comes into close contact with all surfaces of the inner portion of the case part 110 including the protrusion 111.

As the occurrence of bubbles is suppressed, the rubber part 140 closely contacts the case part 110 and the rail part 120 without any empty space, so that the case part 110 can firmly support the rubber part 140 without shaking. . When the shaking of the rubber part 140 is blocked, the shaking of the rail part 120 surrounded by the rubber part 140 is also blocked.

The rubber part 140 includes a drain groove 141 and a wheel groove 142.

The drain groove 141 is formed on one side of the upper surface of the rubber part 140 and is disposed lower than the upper end of the head 121. Rain water falling to the rail unit 120 in the rain is collected in the drain groove 141, and then discharged to the outside along the drain passage (not shown) connected to the drain groove 141.

As a result, when the temperature is low, the circumference of the rail unit 120 or the rail unit 120 may be prevented from freezing due to rain or the like. In addition, even in the case of heavy rain, since the rainwater may be immediately discharged from the rail unit 120, the wheels W may be prevented from sliding off the rail unit 120.

If the drain groove 141 is formed on the right side of the rail unit 120, the wheel groove 142 is formed on the left side. The wheel groove 142 is formed to have a sufficient free space to accommodate the wheel (W).

The rubber part 140 surrounds the rail part 120. Since the entire rail portion is exposed to the outside, the temperature of the rail portion rises close to 100 degrees in summer, and drops to minus 20 degrees in winter.

As the elongation in the summer high temperature environment and the compression in the winter low temperature environment occur repeatedly, the life of the rail portion is much shorter than expected.

In this embodiment, the rubber part 140 is formed to surround the rail part 120. Accordingly, since the rubber part 140 serves as a heat insulator, the degree of elongation in a high temperature environment in summer and a degree of compression in a low temperature environment in winter can be significantly reduced.

As the degree of expansion and contraction according to the ambient temperature decreases, the thermal expansion stress received by the rail unit 120 decreases, thereby extending the life of the rail unit 120.

Since the rubber part 140 uses molten rubber, the manufacturing process is easy. Since the rubber part 140 is filled in a molten state between the rail part 120 and the case part 110, the rubber part 140 is formed in accordance with the shape of the rail part 120 and the shape of the case part 110.

Therefore, even when the shape of the case 110 is not constant, such as the protrusion 111, it is possible to closely contact the case 110.

In addition, even if the size of the precast rail device 100 is changed, the rubber unit 140 does not need to change its size, so only the amount of rubber to be injected into the case unit 110 is changed, thereby changing the size of the precast rail device 100. You can respond immediately.

Since the rubber part 140 is made of rubber, it has an excellent compression effect. When the rubber part 140 controls the movement in the stretching direction due to the properties of the rubber, in other words, the rubber part 140 has the effect of evenly dispersing the force.

Therefore, as the rail part 120 is surrounded by the rubber part 140, and the case part 110 is disposed around the rubber part 140, the vibration and shock applied to the rail part 120 are transmitted through the rubber part 140. Fully buffered.

3, 4, and 8, the precast rail device 200 according to the second embodiment of the present invention includes a case portion 210, a rail portion 220, and a rubber portion 240. .

The case part 210 is made of concrete, and forms the outer shape of the precast rail device 200. The case part 210 incorporates the rail part 220 and the rubber part 240 to integrate the precast rail device 200 into one module.

Therefore, the rail unit 220, the rubber unit 240 and the case unit 210 need not be separately assembled at the construction site by transporting one module manufactured at the factory and installed directly at the site, so it is difficult to It is possible to block the assembly error inevitably generated during assembly, thereby improving product precision.

In addition, since the rail unit 220, the rubber unit 240, and the case unit 210 need not be transported individually, only one precast rail device 200 may be transported, thereby reducing transportation costs due to the simplicity of transport. In addition, movement becomes easy even in construction site.

In addition, it is possible to adjust the dimensions of the rail unit 220, the rubber unit 240 and the case unit 210 according to the site environment, and the adjustment is made at the factory, not the site, to achieve standardization and precision for each configuration Can be.

The case part 210 fixes the position of the rail part 220. The case part 210 is provided with the rubber part 240 so that the rail part 220 is fixed to its original position without shaking, thereby suppressing the left and right and vertical shaking of the rail part 220.

The rail unit 220 is disposed inside the case unit 210. The rail unit 220 is disposed at the center of the case unit 210 so as not to be biased toward the left or the right. The rail unit 220 includes a head 221, a connection part 222, and a support 223.

The head 221 is an upper portion of the rail portion 220 which is in contact with the wheels W such as a train, and is made of a material having excellent wear resistance and high strength.

The support 223 is a lower portion of the rail unit 220 and has a wider left and right widths than the head 221 and the connection part 222 so as to be stably disposed in the case 210.

The connecting portion 222 is a central side portion of the rail portion 220 connecting the head 221 and the support 223.

The case part 210 includes a protrusion 211 protruding toward the rail part 220 at an inner side thereof. In detail, the protrusion 211 protrudes toward the connecting portion 222 having a narrower left and right width than the head 221 and the support 223. The protrusion 211 may reduce the gap between the connection part 122 and the inner part of the case part 210.

In the second embodiment, the rubber part 240 is positioned in the space where the anti-vibration pad part 130 is disposed to cushion the load or impact applied by the train. A support piece 240a (see FIG. 8) supporting the rail unit 220 may be provided below the rail unit 220 so that the rail unit 220 may be spaced apart from the inner upper side surface of the case unit 210. .

Since the rubber part 240 is made of rubber, it has an excellent compression effect. The rubber part 240 has an effect of evenly distributing the force when controlling the movement in the stretching direction due to the nature of the rubber.

Therefore, as the lower and side portions of the rubber part 240 are constrained by the case part 210, the vibrations and shocks applied to the rail part 220 are uniformly dispersed in the rubber part 240 while being buffered.

The rubber part 240 surrounds the rail part 220 in the case part 210. The rubber part 240 is formed by injecting molten rubber into a space between the case part 210 and the rail part 220 after the rail part 220 is disposed inside the case part 210.

The protruding portion 211 of the case portion 210 is formed in a hemispherical cross section to suppress generation of bubbles when the molten rubber solidifies.

When the protrusion 211 forms an angular shape such as a rectangular parallelepiped, the molten rubber does not reach a portion where the two surfaces contact each other and bubbles are generated. In the present embodiment, since the protrusion 211 protrudes while forming a smooth curved surface, bubbles are suppressed as the molten rubber comes into close contact with all surfaces of the inner portion of the case portion 210 including the protrusion 211.

As the occurrence of bubbles is suppressed, the rubber part 240 closely adheres to the case part 210 and the rail part 220 without any empty space, so that the case part 210 can firmly support the rubber part 240 without shaking. . When the shaking of the rubber part 240 is blocked, the shaking of the rail part 220 surrounded by the rubber part 240 is also blocked.

The rubber part 240 includes a drain groove 241 and a wheel groove 242.

The drain groove 241 is formed at one side of the upper surface of the rubber part 240 and is disposed lower than the upper end of the head 221. Rain water falling to the rail unit 220 in the rain is collected in the drain groove 241, and then discharged to the outside along the drain passage (not shown) connected to the drain groove 241.

As a result, when the temperature is low, the circumference of the rail unit 220 or the rail unit 220 may be prevented from freezing due to rain or the like. In addition, even in the case of heavy rain, since the rainwater may be immediately discharged from the rail unit 220, the wheels W may be prevented from sliding from the rail unit 220.

If the drain groove 241 is formed on the right side of the rail unit 220, the wheel groove 242 is formed on the left side. The wheel groove 242 is formed to have a sufficient free space to accommodate the wheel (W).

The rubber part 240 surrounds the rail part 220. Accordingly, since the rubber part 240 serves as a heat insulator, the degree of elongation in the high temperature environment in summer and the degree of compression in the low temperature environment in winter can be significantly reduced.

As the degree of expansion and contraction according to the ambient temperature is reduced, thermal expansion stress received by the rail unit 220 may be reduced, thereby extending the life of the rail unit 220.

Since the rubber part 240 uses molten rubber, the manufacturing process is easy. Since the rubber part 240 is filled in a molten state between the rail part 220 and the case part 210, the rubber part 240 is shaped in accordance with the shape of the rail part 220 and the case part 210.

Therefore, even when the shape of the case 210 is not constant, such as the protrusion 211, it is possible to closely contact the case 210.

In addition, even if the size of the precast rail device 200 is changed, the rubber unit 240 does not need to change its size, so only the amount of rubber injected into the case 210 is changed, so the size of the precast rail device 200 is changed. You can respond immediately.

5, 6, and 9, the precast rail device 300 according to the third embodiment of the present invention includes a rail part 320, a dustproof pad part 330, and a rubber part 340. Is done.

The rail part 320 includes a head 321, a connection part 322, and a support 323. The head 321 is an upper portion of the rail portion 320 which is in contact with the wheels W, such as a train, and is made of a material having excellent wear resistance and high strength.

The support 323 is a lower portion of the rail unit 320 and is wider in width than the head 321 and the connection part 322. The connecting portion 322 is a central side portion of the rail portion 320 connecting the head 321 and the support 323.

The inner side of the lower mold (m) is provided with a projection (n) protruding toward the rail portion (320). The protrusion n is protruded toward the connecting portion 322 having a narrower left and right width than the head 321 and the support 323.

The protruding portion n has a hemispherical cross section like the protruding portion 111 of the first embodiment, and suppresses the occurrence of bubbles between the protruding portion n and the concave portion 345 formed by the protruding portion n. The concave portion 345 reduces the distance between the connecting portion 322 and the support such as concrete that supports the rubber portion 340 from the outside.

The dustproof pad part 330 is positioned below the rail part 320 to cushion a load or an impact applied by a train. The anti-vibration pad part 330 supports the rail part 320 and is deformed while being compressed by the wheels W passing through the rail part 320.

Deformation of the anti-vibration pad portion 330 is made in the vertical width is reduced and the horizontal width is increased compared to the original shape. Through such a deformation, the dustproof pad part 330 absorbs vibrations or shocks caused by the train.

The rubber part 340 is positioned at the side of the dustproof pad part 330. The rubber part 340 is made of a deformable material so that the vibration pad 330 is deformed. In this embodiment, the rubber part 340 includes rubber.

The rubber part 340 surrounds the rail part 320. The rubber part 340 is formed by injecting molten rubber into a space between the lower mold m and the rail part 320 after the rail part 320 is disposed in the lower mold m.

The rubber part 340 includes a drain groove 341 and a wheel groove 342. The drain groove 341 is formed at one side of the upper surface of the rubber part 340 and is disposed lower than the upper end of the head 321. Rainwater falling to the rail unit 320 during rain is collected by the drain groove 341, and then discharged to the outside along a drain passage (not shown) connected to the drain groove 341.

As a result, when the temperature is low, the circumference of the rail part 320 or the rail part 320 can be prevented from being frozen by rain water. In addition, even in the case of heavy rain, since the rainwater may be immediately discharged from the rail unit 320, the wheels W may be prevented from sliding off the rail unit 320.

If the drain groove 341 is formed on the right side with respect to the rail 320, the wheel groove 342 is formed on the left side. The wheel groove 342 is formed to have a sufficient free space to accommodate the wheel (W).

The rubber part 340 is formed to surround the rail part 320. Accordingly, since the rubber part 340 serves as a heat insulator, the degree of elongation in a high temperature environment in summer and a degree of compression in a low temperature environment in winter can be significantly reduced.

As the degree of expansion and contraction according to the ambient temperature decreases, the thermal expansion stress received by the rail unit 320 decreases, thereby extending the life of the rail unit 320.

Since the rubber part 340 uses molten rubber, the manufacturing process is easy. Since the rubber part 340 is filled in a molten state between the rail part 320 and the lower mold m, the rubber part 340 is formed in accordance with the shape of the rail part 320 and the shape of the lower mold m.

In addition, even if the size of the precast rail device 300 is changed, the rubber unit 340 does not need to change its size, so only the amount of rubber injected into the lower mold (m) is changed, so the size of the precast rail device 300 is changed. You can respond immediately.

Since the rubber part 340 is made of rubber, it has an excellent compression effect. The rubber part 340 has an effect of evenly distributing the force when controlling the movement in the stretching direction due to the properties of the rubber, in other words, when restraining the displacement.

Therefore, when the rail part 320 is surrounded by the rubber part 340, and the rubber part 340 is constrained by concrete to control the expansion and contraction of the rubber part 340, the vibration and shock applied to the rail part 320 are transmitted through the rubber part 340. Fully buffered.

The rubber part 340 forms the outline of the precast rail device 300. The rubber part 340 incorporates the rail part 320 and the anti-vibration pad part 330 to integrate the precast rail device 300 into one module.

Therefore, the rail unit 320, the anti-vibration pad unit 330 and the rubber unit 340 need not be separately assembled at the construction site by transporting one module manufactured in the factory and installed directly at the site, so in a poor field environment It is possible to block the assembly error inevitably occurred during the assembly of the product can improve the accuracy of the product.

In addition, since only one precast rail device 300 needs to be transported without having to transport the rail part 320, the dustproof pad part 330, and the rubber part 340, the transportation cost can be reduced according to the simplicity of transportation. . In addition, movement becomes easy even in construction site.

In addition, the dimensions of the rail unit 320, dustproof pad unit 330, and rubber unit 340, etc. can be adjusted according to the site environment, and the adjustment is made at the factory, not the site. Can be achieved.

In a modified embodiment of the third embodiment, the precast rail device 300 may include the rail part 320 and the rubber part 340, omitting the dustproof pad part 330. Therefore, in the modified embodiment, the rubber part 340 is positioned in the space where the anti-vibration pad part 330 is disposed in the third embodiment to cushion the load or impact applied by the train.

A method of manufacturing a precast rail device according to a first embodiment of the present invention will be described with reference to FIGS. 1, 2 and 7.

As shown in FIG. 1, in order to manufacture the precast rail device 100 according to the first embodiment of the present invention, the dustproof pad part 130 is disposed inside the case part 110. The dustproof pad part 130 is disposed at the center of the case part 110 so as not to be biased toward any one side. At this time, the side part of the dustproof pad part 130 is disposed to be spaced apart from the inner part of the case part 110 so as to be able to deform the dustproof pad part 130.

After that, the rail unit 120 is disposed above the dustproof pad unit 130. At this time, the rail unit 120 is disposed such that the protrusion 111 formed on the inner side of the case unit 110 protrudes toward the connection portion 122 of the rail unit 120.

When the arrangement of the rail part 120 is completed, the upper mold M is stacked on the upper side of the case part 110, and the rubber melted through the mold hole h formed in the upper mold M is provided in the case part 110. Inside). When a predetermined time elapses, the rubber solidifies to form the rubber part 140, and the rubber part 140 is in close contact with the case part 110 and at the same time in close contact with the rail part 120 to surround the rail part 120. do.

3, 4 and 8 will be described a method of manufacturing a precast rail device according to a second embodiment of the present invention.

As shown in FIG. 3, in order to manufacture the precast rail device 200 according to the second embodiment of the present invention, the rail part 220 is disposed in the case part 210. In this case, the rail unit 220 is disposed to protrude from the protrusion 211 formed at the inner side of the case unit 210 toward the connection portion 222 of the rail unit 220. On the other hand, the support piece 240a may be disposed in advance so that the lower portion of the rail portion 220 is spaced apart from the upper portion of the case portion 210.

When the arrangement of the rail unit 220 is completed, the upper mold (M) is laminated on the upper side of the case portion 210, and the molten rubber through the mold hole (h) formed in the upper mold (M) case portion 210 Inside). When a predetermined time elapses, the rubber solidifies to form the rubber part 240, and the rubber part 240 is in close contact with the case part 210 and at the same time in close contact with the rail part 220 to surround the rail part 220. do.

5, 6 and 9 will be described a method of manufacturing a precast rail device according to a third embodiment of the present invention.

As shown in FIG. 5, in order to manufacture the precast rail device 300 according to the third embodiment of the present invention, the dustproof pad part 330 is disposed inside the lower mold m. The dustproof pad part 330 is disposed at the center so as not to be biased toward any one side in the lower mold m. At this time, the side surface of the dustproof pad part 330 is disposed to be spaced apart from the inner side of the lower mold (m).

Thereafter, the rail part 320 is disposed on the dustproof pad part 330. At this time, the rail portion 320 is disposed such that the protrusion n formed in the lower mold m protrudes toward the connection portion 322 of the rail portion 320.

When the arrangement of the rail unit 320 is completed, the upper mold (M) is stacked on the upper side of the lower mold (m), the molten rubber through the mold hole (h) formed in the upper mold (M) the lower mold (m) Inside). When a predetermined time elapses, the rubber solidifies to form the rubber part 340, and the rubber part 340 is in close contact with the rail part 320 to surround the rail part 320. Thereafter, the precast rail device 300 is removed from the upper mold M and the lower mold m.

On the other hand, in the modified embodiment of the third embodiment, the support piece 240a (see FIG. 8) is used when the rail unit 320 is disposed so as to replace the space where the dustproof pad unit 330 is disposed with the rubber unit 340. Can be.

Although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and various modifications and equivalent other embodiments are possible to those skilled in the art. Will understand.

Therefore, the true technical protection scope of the present invention will be defined by the claims below.

100 precast rail device 110 case portion
111: protrusion 120: rail
130: dustproof pad portion 140: rubber portion

Claims (23)

A carrying case portion;
A single rail part disposed inside the case part;
An anti-vibration pad part disposed between the case part and the rail part to support the rail part from the lower side, and the side part being spaced apart from the inner part of the case part to be deformable by pressurization of a wheel passing on the rail part; And
A rubber part including rubber to surround the rail part while being in close contact with an inner part of the case part in the case part,
The head of the upper rail; Lower support; And a connecting portion connecting the head and the support,
The case portion is formed on the inner side protruding toward the connecting portion, the precast rail device characterized in that it has a projection having a hemispherical cross section.
delete delete delete delete The method of claim 1,
The rubber part is disposed on the upper side lower than the upper end of the head, the precast rail device, characterized in that provided with a drain groove for draining water.
The method of claim 6,
The rubber part is provided with a wheel groove portion on the opposite side of the upper surface is provided with the drain groove portion.
A carrying case portion;
A single rail part disposed inside the case part; And
A rubber part including rubber to surround the rail part while being in close contact with an inner part of the case part in the case part,
The rail portion, the lower portion is disposed so as to be spaced apart from the case portion by the rubber portion,
The rail portion, the upper head; Lower support; And a connecting portion connecting the head and the support,
The casing portion is provided with a protruding portion protruding from the inner portion toward the connecting portion and having a hemispherical cross section.
delete delete delete delete The method of claim 8,
The rubber portion, the drain groove portion disposed on the upper side than the upper end of the head to drain the water; And
Precast rail device characterized in that it comprises a wheel groove on the opposite side of the upper surface provided with the drain groove.
delete delete delete delete Arranging the dustproof pad part in the carrying case part;
Disposing a single rail unit on an upper portion of the dustproof pad unit; And
Injecting molten rubber into the case part to surround the rail part while being in close contact with the inner part of the case part, and forming a rubber part,
In the disposing of the anti-vibration pad unit, the side of the anti-vibration pad part may be spaced apart from the inner part of the case part to enable deformation of the anti-vibration pad part when the wheel passing on the rail part presses the rail part.
The case part has a precast rail, which protrudes toward the connection part of the rail part on an inner side thereof, and has a protruding part which is formed in a hemispherical cross section and suppresses the generation of bubbles when the molten rubber solidifies. Method of manufacturing the device.
delete Disposing a single rail unit inside the transportable case unit; And
Injecting molten rubber into the case part to form a rubber part surrounding the rail part while being in close contact with the inner part of the case part;
In the arranging of the rail part, the rubber part is interposed between the lower part of the rail part and the case part to arrange the lower part of the rail part to be spaced apart from the case part,
The case part has a precast rail which protrudes toward the connection part of the rail part at an inner side, and has a protruding part which is formed in a hemispherical shape and suppresses the generation of bubbles when the molten rubber solidifies. Method of manufacturing the device. delete delete delete

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