KR102380878B1 - Traveling way of automatic guided transit - Google Patents

Abstract

The present invention relates to a rubber wheel AGT traveling path, and more particularly, to a rubber wheel AGT (automatic guided transit), which attenuates vibrations generated when traveling along the traveling path, thereby improving riding comfort and preventing structural stability of the traveling path from being deteriorated It is related to the rubber wheel AGT running route.
The present invention for achieving the above object is composed of a ground, a concrete block installed on the upper part of the ground, and a vibration-proof layer formed between the ground and the concrete block, and an anti-shake part is further provided at the front and rear ends of the concrete block. characterized in that it is formed.

Description

Rubber wheel AGT traveling route {Traveling way of automatic guided transit}

The present invention relates to a rubber wheel AGT traveling route, and more particularly, to a rubber wheel AGT (automatic guided transit), which attenuates vibrations generated when traveling along the traveling path to improve riding comfort and prevent deterioration of structural stability of the traveling path It is related to the rubber wheel AGT running route.

In general, light rail (hereinafter referred to as "light rail") is a guide-type iron wheeled Automated Guideway Transit (AGT), rubber wheeled AGT, LIM using linear induction motor, monorail, streetcar, and magnetic force using magnetic force. It is classified as a floating railroad.

Among these light railroads, the rubber wheel AGT is shown in FIG. 1 . Referring to FIG. 1 , the rubber wheel AGT uses rubber tires for the wheel 1 to travel on the running path 3 of the track roadbed 2 , and in this case, the vertical wall 4 of the roadbed 2 . A guideway (5) installed in the vehicle and a guide roller (6) installed in the vehicle guide the progress of the vehicle, thereby driving the vehicle. Most of these are built to perform the function of inner circulation or connecting the downtown and sub-centers.

And, since most of the light rail trains are built underground and elevated in the city, the line alignment is complicated by changing many vertical and flat curves. Generally, line alignment is designed with the principle of straight lines and flatness. However, it is a realistic task that many curves and gradients have to be set due to the nature of the light rail.

The above-described rubber wheel AGT is a rubber wheel (1) tire that runs on a running track (3). It must be precisely constructed so that the running track (3) has an appropriate inclination according to the lateral and longitudinal inclination of the light rail track. The operation of the light rail is made stable.

In this construction method of the rubber wheel AGT, the guide track 5 is installed on the side of the driving path 3 in the state where it is installed. The guide track 5 will be installed on the road bed vertical wall 4 located on the side of 3).

Such a conventional rubber wheel AGT (automatic guided transit) traveling path is usually formed in a form in which a traveling path made of concrete is directly installed on the upper part of the roadbed 2, so there is no countermeasure against vibration occurring during driving. There was a problem in that the riding comfort was lowered by the significant vibration.

Korean Patent Registration 10-1158466 (Registered on Jun. 14, 2012) Korean Patent Registration 10-1114445 (Registered on February 2, 2012)

The present invention has been devised to solve the above problems, and an object of the present invention is to provide a concrete block made by a precast method on the upper part of the ground, inject a vibration-proof material between the concrete block and the ground, and then harden it It is to provide a rubber wheel AGT driving path that can reduce vibrations generated during driving by a significant amount by forming a driving path, thereby enhancing riding comfort.

Another object of the present invention is to form anti-shake parts on both sides of the connection part of the concrete block forming the running path to prevent the concrete block from shaking left and right or back and forth, thereby increasing the structural stability lowered by the vibration-proof material. It provides a route.

The present invention for solving these problems;

It is characterized in that it consists of a ground, a concrete block installed on the top of the ground, and a dustproof layer formed between the ground and the concrete block.

Here, at the front and rear ends of the concrete block, it is characterized in that the shaking prevention part is further formed.

In this case, the shaking preventing portion includes a first installation groove formed on both sides of the front end of the concrete block, a second installation groove formed to communicate with the first installation groove of the concrete block adjacent to both sides of the rear end of the concrete block, and the first , characterized in that it consists of a first support block fixed to the ground so as to be simultaneously inserted into the two installation grooves.

On the other hand, the shaking preventing part is inserted into a third installation groove formed on one side of the front end of the concrete block, a fourth installation groove formed on the other side of the rear end of the concrete block, and the third installation groove and the fourth installation groove. It is characterized in that it consists of a second support block fixed to the ground.

Here, the third and fourth installation grooves and the second support block are characterized in that they are formed in a 'L' shape.

In this case, an auxiliary fixing member is further provided on the side of the first support block or the second support block.

According to the present invention of the above configuration, after providing a concrete block made by a precast method on the upper part of the ground, and then injecting a vibration-proof material between the concrete block and the ground, hardening it to form a running path, Vibration can be significantly reduced, which has the effect of improving riding comfort.

In addition, the present invention has the effect of increasing the structural stability reduced by the vibration-proof material by forming anti-shake parts on both sides of the connection part of the concrete block forming the running path to prevent the concrete block from shaking left and right or back and forth.

1 is a schematic view showing a track of a conventional general guide track type rubber wheel light rail.
2 is a conceptual diagram of a rubber wheel AGT running path according to the present invention.
3 is a perspective view of a rubber wheel AGT running path according to the present invention.
4 is an exploded perspective view of a rubber wheel AGT running path according to the present invention.
5 is a cross-sectional view of a rubber wheel AGT running path according to the present invention.
6 is a perspective view of a rubber wheel AGT running path according to another embodiment of the present invention.
7 is an exploded perspective view of a rubber wheel AGT running path according to the embodiment of FIG. 6 .
8 is a cross-sectional view of a rubber wheel AGT running path according to the embodiment of FIG. 6 .
9 is a conceptual diagram showing various structures forming a rubber wheel AGT running path.
10 is a graph showing the vibration acceleration according to the structure of the rubber wheel AGT running path.
11 is a conceptual diagram illustrating displacement and stress measurement points according to the structure of a rubber wheel AGT running path.
12 is a cross-sectional view of a rubber wheel AGT running path according to another embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in more detail with reference to the accompanying drawings. The same reference numerals are used for the same components in the drawings, and repeated descriptions of the same components are omitted. And, it should be understood that the present invention may be implemented in many different forms and is not limited to the described embodiments.

2 is a conceptual diagram of a rubber wheel AGT traveling path according to the present invention, FIG. 3 is a perspective view of a rubber wheel AGT traveling path according to the present invention, and FIG. 4 is an exploded perspective view of a rubber wheel AGT traveling path according to the present invention, FIG. 5 is a cross-sectional view of a rubber wheel AGT traveling path according to the present invention, FIG. 6 is a perspective view of a rubber wheel AGT traveling path according to another embodiment of the present invention, and FIG. 7 is a rubber wheel AGT traveling path according to the embodiment of FIG. 8 is a cross-sectional view of the rubber wheel AGT traveling path according to the embodiment of FIG. 6 , FIG. 9 is a conceptual view showing various structures forming the rubber wheel AGT traveling path, and FIG. 10 is the rubber wheel AGT traveling path is a graph showing vibration acceleration according to the structure of , FIG. 11 is a conceptual diagram showing displacement and stress measurement points according to the structure of a rubber wheel AGT traveling path, and FIG. 12 is a rubber wheel AGT traveling path according to another embodiment of the present invention It is a cross section.

The present invention relates to a rubber wheel AGT running route, and as shown in FIG. 2, the configuration is a ground 100 and a concrete block 200 installed on the ground 100, and the ground 100 and a concrete block It consists of a vibration-proof layer 400 formed between the (200).

Here, the concrete block 200 is manufactured in advance to fit the running path by a precast method, and is fixed to the upper part of the ground 100 to be spaced a certain distance apart, and then a vibration-proof material for forming the vibration-proof layer 400 . is formed by injecting between the ground 100 and the concrete block 200 .

In this case, as the vibration-proof material for forming the vibration-proof layer 400, various well-known materials can be used, but among them, it is preferable to use Edilon Sedra's Corkelast VA-90 having relatively high rigidity.

On the other hand, in order to check the anti-vibration performance of the rubber wheel AGT running route of the present invention, the running route was formed into three structures and vibration analysis was performed for each structure. Looking at each structure, as shown in FIG. 9, the first Concrete running path in which concrete blocks are installed directly on the upper part of the ground, secondly, a dustproof running path with a dustproof layer formed between the same ground and concrete block as in the present invention, and thirdly, an iron plate in the dustproof layer located between the ground and concrete block. It consists of a steel plate anti-vibration running path equipped with

Here, in order to evaluate the vibration reduction performance of the traveling route, the maximum vibration acceleration (A _peak ) and the root mean square (A _RMS ) value at a specific point when a moving load is applied were derived. By comparing the corresponding values with respect to each other, it is possible to determine the structure of the travel route with relatively excellent vibration reduction performance.

, A_RMS=

이며, T는 측정시간(s),

는 시간 t에서의 가속도(m/s²)이다.At this time, the maximum vibration acceleration is the highest value of the acceleration signal at the measurement time, and the acceleration RMS is a factor that evaluates the vibration magnitude by estimating the energy content of the vibration signal. The formula for each factor is A _peak = Max

, A _RMS =

where T is the measurement time (s),

is the acceleration (m/s ² ) at time t.

And, as shown in FIG. 10, when the vibration acceleration diagram according to time is analyzed at the vibration measurement point near the center of the travel route, the acceleration value has the largest value in the vicinity of 0.12 sec when the moving load passes near the measurement point.

In addition, when the vibration acceleration for each running route is compared, it can be confirmed that large vibrations occur in the order of the concrete running route, the steel plate anti-vibration running route, and the vibration-proof running route.

In particular, it is possible to analyze the significant vibration reduction effect of the other two anti-vibration running routes compared to the concrete running route. Among them, the simple vibration-proof running route made of only vibration-proof material has the most excellent vibration reduction effect compared to other running routes.

Here, the following [Table 1] shows the A _peak - A _RMS analysis results for each type of travel route. As a result of numerical analysis of the vibration characteristics for each running route, both A _peak and A _RMS decreased by more than 70% in the case of the steel plate anti-vibration running route compared to the concrete running route.

In particular, in the case of the anti-vibration running route, the vibration reduction rate was over 85%, showing the most excellent vibration reduction effect among the three anti-vibration running routes.

In addition, displacement and stress analysis were additionally performed for each of the three driving routes by load. As shown in FIG. 11, the concrete block was divided into 6 parts and the moving load moving at 60 km/h for each section. [Table 2] below is a table showing the maximum stress and displacement for each point of the concrete running path, [Table 3] is a table showing the maximum stress and displacement for each point of the vibration-proof running path, [Table 4] is a table showing the maximum stress and displacement for each point of the anti-vibration rail.

Here, looking at [Table 2] to [Table 4], a similar level of displacement and stress occurred in all 6 sections of the concrete running route.

However, it can be seen that the vibration-proof running route and the steel plate anti-vibration route containing the vibration-proof material show relatively large displacement and stress deviation compared to the concrete running route. A difference in allowable stress occurs.

In other words, as a result of performing structural analysis and vibration analysis of the three driving routes, low stress occurred in the order of the concrete running route, the steel plate anti-vibration running route, and the anti-vibration running route in the structural analysis. However, it was analyzed that the allowable stress was exceeded by about 15% in the case of the dust-proof running route.

Therefore, the vibration-proof running path of the present invention has the best anti-vibration performance, but has a weakness in allowable stress, so it must be reinforced in order to be used as a running path.

Therefore, the front and rear ends of the concrete block 200 constituting the rubber wheel AGT running path of the present invention are formed with anti-shake parts 300, respectively, to prevent the front and rear and left and right shaking of the concrete block 200 to increase structural stability. do.

In addition, as shown in FIGS. 3 to 5 , the shaking preventing part 300 includes a first installation groove 210 formed on both sides of the front end of the concrete block 200 and both sides of the rear end of the concrete block 210 . It consists of a second installation groove 220 formed in the , and a first support block 310 inserted into the first and second installation grooves 210 and 220 .

Here, the concrete block 200 is installed to be in contact with the front and rear, and the first installation groove 210 and the second installation groove 220 formed at the rear end of the adjacent concrete block 200 are positioned to communicate with each other, The first support block 310 is formed to have the same size as the combined size of the first and second installation grooves 210 and 220 and is simultaneously inserted into the first and second installation grooves 210 and 220 .

At this time, the first support block 310 is firmly fixed to the ground 100 through the anchor 312 provided to protrude downward.

Thus, the first support block 310 supports both sides and front and rear ends of the concrete block 200, thereby stably preventing the concrete block 200 from shaking in the front-rear and left-right directions, thereby reducing structural stability. Not only can it be prevented, but also it is possible to attenuate a significant amount of vibration generated during driving through the vibration-proof layer 400 .

On the other hand, as another embodiment of the present invention, as shown in FIGS. 6 to 8 , the shaking preventing unit 300 includes a third installation groove 230 formed on one side of the front end of the concrete block 200 and the concrete block 200 . ) and a fourth installation groove 240 formed on the other side of the rear end, and a second support block 320 that is respectively inserted into the third installation groove 230 and the fourth installation groove 240 .

Here, the third and fourth installation grooves 230 and 240 and the second support block 320 are formed in an 'L' shape so that the second support block 320 is inserted into the third and fourth installation grooves 230 and 240, respectively. installed, and the second support block 320 is also firmly fixed to the ground 100 using the anchor 322 as described above.

Therefore, the second support block 320 supports both sides and front and rear ends of the concrete block 200, thereby stably preventing the concrete block 200 from shaking in the front-rear and left-right directions, thereby reducing structural stability. Not only can it be prevented, but also it is possible to attenuate a significant amount of vibration generated during driving through the vibration-proof layer 400 .

And, as another embodiment of the present invention, as shown in FIG. 12 , an auxiliary fixing member 330 is further provided on the side of the first and second support blocks 310 and 320 for supporting the concrete block 200 .

Here, the auxiliary fixing member 330 is formed in an 'L' shape to fix the first and second support blocks 310 and 320 to the ground 100 , thereby more stably preventing the front and rear, left and right vibrations of the concrete block 200 . can be supported by

Although preferred embodiments of the present invention have been described above, the scope of the present invention is not limited thereto, and the scope of the present invention extends to those substantially equivalent to the embodiments of the present invention. Various modifications are possible by those of ordinary skill in the art to which the invention pertains without departing from the scope of the invention.

The present invention relates to a rubber wheel AGT traveling route, and more particularly, to a rubber wheel AGT (automatic guided transit), which attenuates vibrations generated when traveling along the traveling path to improve riding comfort and prevent deterioration of structural stability of the traveling path It is related to the rubber wheel AGT running route.

100: ground 200: concrete block
210: first installation groove 220: second installation groove
230: third installation groove 240: fourth installation groove
300: shake prevention unit 310: first support block
320: second support block 400: anti-vibration layer

Claims (6)

ground and
a concrete block installed on the upper part of the ground;
A vibration-proof layer using Corkelast VA-90 is provided as a vibration-proof material to reduce vibrations generated during driving between the ground and the concrete block,
A shaking preventing part is further formed at the front and rear ends of the concrete block, and the shaking preventing part includes a third installation groove formed on one side of the front end of the concrete block, a fourth installation groove formed on the other side of the rear end of the concrete block; It consists of a second support block fixed to the ground so as to be inserted into the third installation groove and the fourth installation groove, and the third and fourth installation grooves and the second support block are formed in a 'L' shape,
A rubber wheel AGT running track, characterized in that an auxiliary fixing member is further provided on the side of the second support block.
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