KR102274845B1 - Low-risel trolley for transporting constructions and Towing device using thereof - Google Patents

Abstract

The present invention relates to a trolley and, more specifically, to a low-rise trolley for transporting structures and a trolley towing device using the same. To this end, the low-rise trolley is provided. The low-rise trolley comprises: a lower trolley (150) including (i-1) a lower frame (130) formed on a track (40) to be transportable by a plurality of wheels (110) and an axle (120), (i-2) a lower through-hole (160) penetrating through the lower frame (130), and (i-3) a lower support means provided on the upper surface of the lower frame (130) to slidingly or rotatably support an upper trolley (200); the upper trolley (200) including (ii-1) an upper frame (230) for supporting a large structure (10), (ii-2) an upper through-hole (272) penetrating through the upper frame (230), and (ii-3) an upper support means provided on the lower surface of the upper frame (230) to slidably or rotatably contact the lower support means; and (iii) a rotation pin (270) inserted into the upper through-hole (272) and the lower through-hole (160). The upper trolley (200) can relatively rotate with respect to the lower trolley (150). Therefore, heavy and/or large structures can be transported on the track.

Description

Low-rise trolley for transporting structures and a trolley towing device using the same

The present invention relates to a trolley, and more particularly, to a low-type high trolley for transporting structures and a trolley traction device using the same.

Installing an overpass on the upper part of a railway bridge without interfering with the operation of trains operating more than 400 times a day is a very difficult task.

Conventionally, there was a disadvantage in that the construction period was long and the construction cost increased because the installation work had to be done gradually using the night time period (1 am to 4 am) when the train was not running.

In addition, a method of manufacturing an overpass of a certain length in advance and lifting it with a crane to replace it has been proposed. However, as most of the country's railways are electrified, the crane work is rejected for safety reasons because there is a high-voltage electric wire at the top.

In order to solve this problem, a new construction method of completing a new large structure of a certain length around a track, transporting it through an existing track, and installing it has been proposed.

On the other hand, it is preferable to utilize a plurality of trolleys (bogies) in order to transport heavy and large structures to the existing railroad. However, the conventional trolley can be used only in straight sections, and cannot be used in places where there are many curved track sections such as stations.

In addition, since the conventional trolley used general wheels, the height (height) was high. Therefore, when transporting large or heavy structures, there was a high risk of overturning and interference with the upper high-voltage catenary. Interference between large structures and high-voltage catenary at the work site meant that the conventional trolley could not be used and had to be resolved through the development of a new device.

1. Republic of Korea Patent Registration No. 10-1287455 (launching system for superstructure of bridge and construction method using the same) 2. Republic of Korea Patent Registration No. 10-1269868 (Bridge improvement method) 3. Republic of Korea Patent Registration No. 10-0556219 (Replacement of superstructure of railway bridge and method of induction lift using it)

Accordingly, the present invention has been devised to solve the above problems, and a first object of the present invention is a low-type high trolley for transporting a structure capable of transporting a high-weight and/or large-sized structure on a track and a trolley using the same To provide a traction device.

A second object of the present invention is to provide a low-profile high trolley for transporting a structure capable of preventing interference with a high-voltage electric wire by exceeding the cross-sectional limit line of a large structure and a trolley traction device using the same.

A third object of the present invention is to provide a low-type high trolley and a trolley traction device using the same for transporting a structure that allows a trolley equipped with a long large structure to safely travel on a curved track.

However, the technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned are clearly to those of ordinary skill in the art to which the present invention belongs from the description below. can be understood

In order to achieve the above technical problem, (i-1) a lower frame 130 configured to be transportable by a plurality of wheels 110 and an axle 120 on the track 40, (i-2) a lower frame A lower trolley (150) comprising a lower through hole (160) passing through (130), (i-3) a lower support means for slidably or rotatably supporting the upper trolley 200 on the upper surface of the lower frame (130). ; (ii-1) the upper frame 230 for supporting the large structure 10, (ii-2) the upper through-hole 272 penetrating the upper frame 230, (ii-3) of the upper frame 230 The upper trolley 200 consisting of an upper support means slidably or rotatably in contact with the lower support means on the lower surface; and (iii) a rotation pin 270 inserted into the upper through-hole 272 and the lower through-hole 160; characterized in that the upper trolley 200 is capable of relative rotation with respect to the lower trolley 150 A low-profile trolley is provided for transporting the structure.

In addition, the wheel 110 is a low-profile high wheel 110 having a diameter of 150 to 600 mm.

In addition, the lower support means, the second central support 180 formed on the periphery of the lower through-hole (160); and a plurality of lower supports 170 installed around the wheel 110 ; may include at least one of

In addition, the upper support means, the first central support 290 formed around the upper through-hole 272; and a plurality of upper supports 280 corresponding to the lower support means; at least one of

In addition, the lower frame 130 has a wheel hole 190 is formed so that a portion of the circumference of the wheel 110 passes.

In addition, the upper portion of the upper frame 230 may further include a plurality of structure support 250 that crosses the upper frame 230 .

Optionally, the wheel 110 is a low-profile wheel 110 having a diameter of 150 to 600 mm, the wheel 110 is 4 to 8, and the lower support means is formed around the lower through hole 160 . a second central support 180; and a lower support 170 installed around each wheel 110 , wherein the upper support means includes: a first central support 290 formed around the upper through-hole 272; and an upper support 280 provided to correspond to each lower support 170 , wherein the lower frame 130 has 4 to 8 wheel holes 190 so that a part of the circumference of the wheel 110 passes through it. and two to three structure supports 250 crossing the upper frame 230 may be further provided on the upper portion of the upper frame 230 .

In addition, the upper frame 230 is formed by connecting a plurality of beams crossing the line 40, and the length of the beam is 3,500 ~ 4,000 mm.

An object of the present invention is, as another embodiment, at least two of the above-described low type high trolleys are provided, the first low type high trolley supports one side of the large structure 10, and the second low type high trolley is the large structure ( 10) supporting the other side, and a pull bar 30 connected to one of the first low type high trolley and the second low type high trolley; And it can be achieved by a low-type high trolley towing device for transporting structures, characterized in that it includes a towing train 20 connected to the towbar 30 .

In addition, the large structure 10 has a length of 15 m to 40 m.

According to an embodiment of the present invention, it is possible to transport a large structure with a weight of 20 to 40 tons or a length of 15 to 40 m on an existing track through a trolley. This has the advantage of not requiring much line construction.

In addition, by transferring the large structure to the low-profile trolley, the cross-sectional limit line of the train is not exceeded (especially, the height is exceeded), and thus, it is possible to prevent interference with the high-voltage catenary. This has an advantage in that it is possible to omit the trouble of disconnecting power lines during construction or reinstalling them after removal. In fact, a power outage in the catenary makes it impossible for trains to pass through the entire section, and the removal and reinstallation of the catenary requires high cost and technology.

And, according to the present invention, a trolley equipped with a large structure with a long length can be safely driven on a curved track without being overturned or derailed. In particular, it acts as a distinct advantage for many curved lines installed in the station.

However, the effects obtainable in the present invention are not limited to the above-mentioned effects, and other effects not mentioned will be clearly understood by those of ordinary skill in the art to which the present invention belongs from the following description. will be able

The following drawings attached to this specification illustrate preferred embodiments of the present invention, and serve to further understand the technical spirit of the present invention together with the detailed description of the present invention to be described later, so the present invention is described in such drawings It should not be construed as being limited only to
1 is a state diagram of a low type high trolley for transporting a structure according to an embodiment of the present invention;
2 is a front view of the low type high trolley 100 and the large structure 10 shown in FIG. 1;
3 is a side view of the low type high troller shown in FIG. 1;
4A is a plan view of the low-type high trolley shown in FIG. 1;
Figure 4b is a plan view when the low-type high trolley shown in Figure 1 passes a curved line;
Figure 5a is a front view of the low type high trolley 100 shown in Figure 1,
5b is an exploded view of the low type high trolley 100 shown in FIG. 5a divided into an upper trolley 200 and a lower trolley 150;
6 is a plan view of the lower trolley 150 of the low type high trolley 100 shown in FIG. 1;
7 is a plan view of the upper trolley 250 of the low type high trolley 100 shown in FIG. 1;
8a is a graphic of the structural analysis result when a vertical static load is applied to the upper trolley 250 of the low type high trolley 100 according to the present invention;
8b is a graphic of the structural analysis result when a vertical static load is applied to the lower trolley 150 of the low type high trolley 100 according to the present invention;
9a is a graphic of the structural analysis result when a vertical dynamic load is applied to the upper trolley 250 of the low type high trolley 100 according to the present invention;
9b is a graphic of the structural analysis result when a vertical dynamic load is applied to the lower trolley 150 of the low type high trolley 100 according to the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, since the description of the present invention is merely an embodiment for structural or functional description, the scope of the present invention should not be construed as being limited by the embodiment described in the text. That is, since the embodiment may have various modifications and may have various forms, it should be understood that the scope of the present invention includes equivalents capable of realizing the technical idea. In addition, since the object or effect presented in the present invention does not mean that a specific embodiment should include all of them or only such effects, it should not be understood that the scope of the present invention is limited thereby.

The meaning of the terms described in the present invention should be understood as follows.

Terms such as “first” and “second” are for distinguishing one component from another, and the scope of rights should not be limited by these terms. For example, a first component may be termed a second component, and similarly, a second component may also be termed a first component. When a component is referred to as being “connected” to another component, it may be directly connected to the other component, but it should be understood that other components may exist in between. On the other hand, when it is mentioned that a certain element is "directly connected" to another element, it should be understood that the other element does not exist in the middle. Meanwhile, other expressions describing the relationship between elements, that is, “between” and “immediately between” or “neighboring to” and “directly adjacent to”, etc., should be interpreted similarly.

The singular expression is to be understood as including the plural expression unless the context clearly dictates otherwise, and terms such as "comprises" or "have" refer to the described feature, number, step, action, component, part or these It is intended to indicate that a combination exists, and it should be understood that it does not preclude the possibility of the existence or addition of one or more other features or numbers, steps, operations, components, parts, or combinations thereof.

All terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, unless otherwise defined. Terms defined in the dictionary should be interpreted as being consistent with the meaning of the context of the related art, and cannot be interpreted as having an ideal or excessively formal meaning unless explicitly defined in the present invention.

embodiment Configuration

Hereinafter, the configuration of the preferred embodiment will be described in detail with reference to the accompanying drawings. First, Figure 1 is a state diagram of the use of the low-type high trolley for transporting the structure according to an embodiment of the present invention. As shown in FIG. 1, two low type high trolleys 100 according to the present invention are provided, the first low type high trolley 100 supports the tip of the large structure 10, and the second low type high trolley ( 100) supports the rear end of the large structure (10).

The large structure 10 may be a concrete structure, a truss structure, a steel structure, or a mixture structure thereof. An example of the large structure 10 may be a bridge, a road, a railway, an overpass, a ramp, an iron bridge, a tower, a column, a beam, a wing, a pipe, and the like. The large structure 10 has a high weight of approximately 20-40 tons or a length of 15-40 m, but this is only an example.

One side of the tow bar 30 is connected to the towing device 195a of the first low type high trolley 100 , and the other end is connected to the towing train 20 . The low-type high trolley 100 may be appropriately input such as one, two, three, four or more for the large structure 10 .

FIG. 2 is a front view of the low type high trolley 100 and the large structure 10 shown in FIG. 1 . As shown in FIG. 2 , the cross-sectional limit line 50 is a limit range that defines the height and width from the line 40 . When the cross-sectional limit line 50 is exceeded, it interferes with a catenary or tunnel, or interferes with facilities around the railway.

In particular, when the large structure 10 is loaded on the trolley using the conventional general wheel 60, the height of the cross-sectional limit line 50 is exceeded. For example, the cross-sectional size H × W of the large structure 10 is 3,980 mm × 3,900 mm, and the diameter of the general wheel 60 becomes 860 mm. will exceed However, in the case of the low-profile high trolley 100 according to the present invention as shown in FIG. 2 , the large structure 10 does not exceed the height limit of the cross-sectional limit line 50 .

3 is a side view of the low type high troller shown in FIG. 1 . 3, the general wheel 60 is also shown for comparison. As shown in FIG. 3 , H1 is the radius of the low profile wheel 110 according to the present invention, and H2 is the radius of the general wheel 60 . H2 is defined as 430 mm (diameter 860 mm), and H1 in the present invention is 175 mm to 200 mm (diameter 350 to 400 mm), preferably 195 mm (diameter 390 mm).

As shown in FIG. 3 , the low-type high trolley 10 can be largely divided into an upper trolley 200 and a lower trolley 150 .

The lower trolley 150 is provided with six low-profile wheels 110 and three axles 120 , and is configured to be driven by the lower frame 130 .

The upper trolley 200 is composed of a structure support 250 and an upper frame 230 that directly support the large structure 10 . The structure support 250 may be configured by a pair of H-beams, and the upper frame 230 may be configured by connecting four H-beams. The upper frame 230 is installed at right angles to the direction of the line 40 , and the structure support 250 is installed parallel to the direction of the line 40 .

4A is a plan view of the low type high trolley shown in FIG. 1 , and FIG. 4B is a plan view of the low type high trolley shown in FIG. 1 as it passes through a curved line. As shown in FIGS. 4A and 4B , the upper trolley 200 is capable of relative rotation with respect to the lower trolley 150 around the rotating pin 270 . The rotation direction can be clockwise or counterclockwise, and the range of the rotation angle can be left and right ±5° to ±20°. This relative rotation is generated while the large structure 10 is traveling on the curved track 40 .

The rotation pin 270 may be located at a geometric center on the plane of the lower frame 130 .

5A is a front view of the low type high trolley 100 shown in FIG. 1 , and FIG. 5B is an exploded view of the low type high trolley 100 shown in FIG. 5A divided into an upper trolley 200 and a lower trolley 150 . 5A and 5B, the upper trolley 200 is loaded on the upper part of the lower trolley 150, and the lower trolley 150 and the upper trolley 200 have an upper support 280 and a lower support 170. ) is slidably supported, and is rotatably supported by the first central support 290 and the second central support 180 .

The first central support 290 is installed so as to be concentric with the upper through-hole 272 in the center of the lower surface of the upper frame 230 , and is in close contact with the second central support 180 so as to be slidable. A lubricant, grease, oil, etc. may be placed between the first and second central supports 290 and 180 .

The rotation pin 270 passes through the upper through-hole 272 and the lower through-hole 160 to form a rotation center. By separating the rotating pin 270, the upper trolley 200 and the lower trolley 150 may be separated, and the upper trolley 200 of another model may be loaded.

6 is a plan view of the lower trolley 150 of the low type high trolley 100 shown in FIG. 1 . As shown in FIG. 6 , six wheel holes 190 are formed through the lower frame 130 of the lower trolley 150 at positions corresponding to the low-profile and high-profile wheels 110 . Accordingly, a portion of the circumference of the low profile wheel 110 passes through the wheel hole 190 and is exposed on the lower frame 130 . Due to the wheel hole 190, the overall height of the low-profile trolley 100 can be further lowered.

The six lower supports 170 are provided on the outside of each wheel hole 190 , and have a higher height than the low profile wheel 110 . The lower support 170 is made of metal, and may be in the form of a hexahedron, a cylinder, or an ellipse.

A pair of traction devices 195a and 195b are installed at both ends of the lower frame 130 to connect the traction rod 30 or connect another trolley. The length and width of the lower frame 130 may be 2,440 × 2,000 mm.

7 is a plan view of the upper trolley 250 of the low type high trolley 100 shown in FIG. 1 . 7, the upper frame 230 of the upper trolley 250 is manufactured by arranging four H-beams perpendicular to the track 40 and interconnecting them. The length of the upper frame 230 may be 3,500 ~ 4,000 mm, preferably 3,800 ~ 3,900 mm. This size range is to satisfy the cross-sectional limit line (50).

A first central support 290 is installed on the central lower surface of the upper frame 230 , and an upper through hole 272 is formed in the center thereof.

Six upper supports 280 are disposed on the lower surface of the upper frame 230 , respectively, and correspond to the lower supports 170 , respectively.

A pair of structure support 250 is disposed parallel to the track 40 on the upper portion of the upper frame 230, and directly supports the large structure (10).

embodiment action

Hereinafter, the operation of the preferred embodiment will be described in detail with reference to the accompanying drawings.

First, a pair of low-type high trolleys 100 are spaced apart on the track 40 and the large structure 10 is loaded on the structure support 250 with a crane (not shown). Then, the structure support 250 and the large structure 10 are fixed through a separate fixing device.

The tow bar 30 and the towing train 20 are connected to the towing device 195a.

In the track 40 of the curved section during towing, the upper trolley 200 rotates around the rotation pin 270 as shown in FIG. 4B . Therefore, the lower trolley 150 travels stably on the track 40, and the upper trolley 200 supports the large structure 10 while rotating, thereby preventing the low-profile high trolley 100 from being overturned, derailed, or damaged. can do.

When it reaches the point where the overpass is to be installed, the separate fixing device is released, the large structure 10 is raised with a prepared crane (not shown), and the installation is completed. By repeatedly performing this process, an overpass (or a pedestrian bridge, a platform connecting passage, etc.) crossing the plurality of tracks 40 may be continuously installed. This transfer process takes 2 to 4 hours, so it can be performed at night when trains are not running. That is, large structures can be transported and installed one unit at a time every night. In particular, there is no need to block or dismantle the catenary during transport and installation, so it does not interfere with the daily operation of trains.

Structural analysis of low-profile trolley

Figure 8a is a graphic of the structural analysis result when a vertical static load is applied to the upper trolley 250 of the low type high trolley 100 according to the present invention, and Figure 8b is a graph showing the result of the structural analysis when a vertical static load is applied to the lower trolley 150 of the present invention Structural analysis result graphic.

As shown in FIGS. 8A and 8B , it was confirmed that the upper trolley 200 for the vertical static load sufficiently withstands a high weight while evenly distributing the load to the lower trolley 150 . This proves that six low-profile and high-profile wheels 110 can withstand a sufficiently high weight.

9A is a graphic diagram of a structural analysis result when a vertical dynamic load is applied to the upper trolley 250 of the low-type high trolley 100 according to the present invention, and FIG. 9B is a lower trolley 150 of the present invention when a vertical dynamic load is applied. Structural analysis result graphic.

As shown in FIGS. 9A and 9B , it can be confirmed that the upper trolley 200 withstands the high weight sufficiently with respect to the vertical dynamic load that the trolley can receive during transport, while evenly distributing the load to the lower trolley 150 . there was. This proves that the trolley can withstand sufficiently high weight even during the transport process.

transform Example

Although the low-profile trolley of the present invention has been illustrated and described as a wheel on a track, it may be implemented by replacing it with a tire and a steering device on a road (asphalt road, concrete road). In particular, a Self Propelled Modular Transporter (SPMT) may be mounted on the lower portion of the upper trolley 200 .

The detailed description of the preferred embodiments of the present invention disclosed as described above is provided to enable any person skilled in the art to make and practice the present invention. Although the above has been described with reference to preferred embodiments of the present invention, it will be understood by those skilled in the art that various modifications and changes can be made to the present invention without departing from the scope of the present invention. For example, those skilled in the art can use each configuration described in the above-described embodiments in a way in combination with each other. Accordingly, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The present invention may be embodied in other specific forms without departing from the spirit and essential characteristics of the present invention. Accordingly, the above detailed description should not be construed as restrictive in all respects but as exemplary. The scope of the present invention should be determined by a reasonable interpretation of the appended claims, and all modifications within the equivalent scope of the present invention are included in the scope of the present invention. The present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. In addition, claims that are not explicitly cited in the claims may be combined to form an embodiment, or may be included as new claims by amendment after filing.

10: large structures,
20: tow train,
30: drawbar,
40: track,
50: section limit line,
60: general wheel,
100: trolley,
110: low profile high wheel,
120: axle,
130: lower frame,
150: lower trolley,
160: lower through hole,
170: lower support,
180: the second central support;
190: wheel hole,
195a, 195b: towing device,
200: upper trolley,
230: upper frame,
250: structure support,
270: rotating pin,
272: upper through hole,
280: upper support,
290: the first central support;
H1: The radius of the wheel with a low profile,
H2: radius of general wheel,

Claims (7)

(i-1) a lower frame 130 configured to be transportable by a plurality of wheels 110 and an axle 120 on the track 40;
(i-2) a lower through-hole 160 penetrating through the lower frame 130;
(i-3) a lower trolley 150 comprising a lower support means for slidably or rotatably supporting the upper trolley 200 on the upper surface of the lower frame 130;
(ii-1) the upper frame 230 for supporting the large structure 10,
(ii-2) an upper through-hole 272 penetrating through the upper frame 230;
(ii-3) the upper trolley 200 consisting of an upper support means slidably or rotatably in contact with the lower support means on the lower surface of the upper frame 230; and
(iii) a rotation pin 270 inserted into the upper through-hole 272 and the lower through-hole 160;
The upper trolley 200 is capable of relative rotation with respect to the lower trolley 150,
The wheel 110 is a low-profile high wheel 110 having a diameter of 150 to 600 mm,
The lower support means, the second central support 180 formed on the periphery of the lower through-hole 160; and a lower support unit 170 installed around each wheel 110.
The upper support means may include a first central support 290 formed around the upper through-hole 272; and an upper support 280 provided to correspond to each of the lower supports 170; a low-type high trolley for transporting structures comprising a. delete delete delete The method of claim 1,
The lower frame 130 is a low type high trolley for transporting a structure, characterized in that the wheel hole 190 is formed so that a part of the circumference of the wheel 110 passes. delete delete

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