KR20100062285A - Apparatus and method to grind concrete traveling rail for light electric railway - Google Patents

Abstract

PURPOSE: A grinding apparatus for a concrete traveling rail for the light electric railway and a grinding method thereof are provided to reduce flatness deviation of a rail surface by grinding the surface of a travelling rail while a moving truck moves along a guide rail. CONSTITUTION: A grinding method for a concrete traveling rail for the light electric railway comprises following steps. Scratches are formed on the surface of a travelling rail through a pre-treating wheel(200) as a grinding apparatus moves on the travelling rail(2). The grinding apparatus grinds the surface of the travelling rail through a disc-shaped grinding wheel(300) by moving on the traveling rail with the scratches formed by the pre-treating process.

Description

Apparatus and method to grind concrete traveling rail for light electric railway

The present invention relates to a concrete running rail polishing apparatus and a polishing method for light rail, and more specifically, a light rail concrete having a disk-type grinding wheel moves on a predetermined path along a guide rail to perform polishing on rail surfaces. A traveling rail polishing apparatus and a polishing method.

Light rail is a light electric rail, as opposed to heavy rail, which is similar to the existing subway, and is a public transportation system with a transportation capacity between the subway and the public bus. In Europe and Japan, a new public transportation system is emerging, and as such light rail, there are track buses in which a driving wheel having a rubber wheel-type driving wheel travels a predetermined path along a rail.

The orbital bus light rail is mainly suitable for operating the city section of 15 ~ 20km, and has the advantages of excellent transportation capacity and low construction and labor costs. The transportation capacity is 4,000 to 40,000 per hour, similar to the subway, and much higher than the bus. Labor cost is remarkably low compared to subway roads because it is equipped with unmanned autonomous driving system.

In addition, the construction of the existing electric railway costs nearly 100 billion won per kilometer, but the light rail is about 40 billion won per kilometer, and is a new transportation method that is attracting attention due to low maintenance and low pollution and environmental friendliness. Therefore, it is considered as one of the best means of solving the transportation problem caused by the recent development of metropolitan area.

The above light rail-type light rail is a rail for moving a moving cart having a rubber wheel-type traveling wheel, and it adopts a concrete rail which is relatively inexpensive to install and maintain and easy to construct. In the case of concrete rails, the flatness of the rail surface is an important factor in the riding comfort of the vehicle. Therefore, in order to secure the flatness of the concrete rail, the rail surface is polished after the rail construction.

Grinding is usually performed by measuring a straight bar with a predetermined length against the upper surface of the light rail running rail and visually measuring the gap between the straight bar and the rail surface to identify and record the uneven condition of the running rail for the corresponding section. On the basis of this, they rely on manual work such as polishing the concave-convex section directly using a grinder.

However, in the conventional manual grinding operation as described above, a considerable time is required for the work, and a work deviation may occur on the rail surface depending on the operator, and it is necessary to maintain the flatness of the running rail as a whole by the work deviation. As a result, the light rail has a disadvantage in that the overall driving performance is poor, such as poor riding comfort in moving along the running rail.

The present invention has been made to solve the above problems of the prior art, as a moving trolley system moving along the rail surface, it is possible to shorten the work time required for polishing work on the rail surface of the concrete running rail, polishing operation The purpose of the present invention is to provide a concrete rail running device and a polishing method for the light rail, which can significantly reduce the work deviation and maintain the flatness of the concrete running rail evenly throughout.

As a means for solving the above problems, the present invention is a device for performing the polishing for the concrete running rail for light rail, at least two pairs of traveling wheels located on the guide rail provided on the outer wall of the traveling path, and rotating the traveling wheel A moving cart comprising a plurality of axles supported by the vehicle, and a chassis connecting the axles and the axles to move on the concrete running rails for light rail along the guide rails; A driving unit which is rotatably mounted on a frame extending downward from the front axle toward the traveling rail among the axles constituting the moving trolley and contacts the traveling rail, and supplies power to the pretreatment wheel to drive the pretreatment wheel; A preprocessor comprising means; And a disk-type polishing wheel rotatably mounted on a frame extending downward from the rear axle spaced behind the front axle of the axle constituting the mobile bogie to the traveling rail, and capable of adjusting a vertical height with respect to the travel rail. It provides a concrete running rail polishing apparatus for light rails comprising a; a polishing unit including a driving means for driving the disk-shaped polishing wheel by providing power to the disk-shaped polishing wheel.

In this case, it is preferable that the starting motor is mounted on the front axle or the rear axle and configured such that the rotational force of the starting motor can be transmitted to the traveling wheel through an electric mechanism, so that the moving cart can be self-started. .

In addition, the pretreatment wheel serves to form a scratch on the running rail surface while rotating by the drive means when the contact movement along the concrete running rail by the moving bogie, for this purpose the axial direction of the wheel on the outer surface of the cylindrical wheel As a result, it is preferable to adopt a circular saw polishing wheel having a saw blade protruding over a predetermined interval.

In addition, in the embodiment of the present invention, the pretreatment unit is mounted on an extension frame extending from the front axle of the mobile bogie to the front of the mobile bogie, further comprising an injection device for injecting water on the running rail in front of the pretreatment wheel. can do. In this case, it is preferable to reduce the generation of dust during the polishing process on the running rail surface by the water sprayed on the running rail.

In this case, the injection device is mounted on the extension frame and the water tank for receiving a predetermined amount of water, and having a discharge port toward the front of the extension frame and the injection nozzle is connected to the water tank so that the water flows; It may be configured to include a compressor mounted on the extension frame for generating a pneumatic pressure for providing the water injection in the water tank to the injection nozzle.

According to a preferred embodiment of the present invention, the foreign matter removal device is mounted on an extension frame extending from the rear axle of the mobile bogie to the rear of the mobile bogie, and removes foreign matter remaining on the traveling rail after polishing through the disc-shaped polishing wheel. It may further include.

Here, the debris removal device is made of a support shaft connected to the extension frame extending from the rear axle and a brush roll connected to the support shaft and rotated by a power motor to remove and remove foreign substances on the running rail on which polishing has been performed. It is preferable to configure so that.

Alternatively, the debris removal device may include a support shaft connected to the extension frame extending from the rear axle and an inhaler connected to the support shaft and driven by a power motor, such as dust on the running rail generated during the polishing process. It may also be configured to remove the suction.

As another means for solving the above problems, the present invention, a pre-treatment step of forming a scratch on the running rail surface through the pre-treatment wheel while moving on the concrete running rail for light rail; And a polishing step of performing a surface polishing on the running rails through a disc-shaped polishing wheel while moving on the running rails on which the scratches are formed through the pretreatment process.

In the pre-treatment step in the polishing method according to the present embodiment, the process of spraying water on the running rail before forming a scratch on the running rail surface to reduce the generation of dust in the polishing process to create a more comfortable working environment It is preferable to include.

In the polishing method according to the present embodiment after the surface of the running rail surface polishing through the disk-shaped polishing wheel to remove the foreign matter remaining on the running rail; may further include a.

At this time, in the post-treatment step, the foreign matter on the running rail that has been polished by using a brush rotated by the power motor is removed, or the foreign matter on the running rail that has been polished by the suction motor driven by the power motor is removed by suction. You may.

According to the embodiment of the present invention having the above-described configuration, by the moving trolley system moving along the rail surface, it is possible to significantly reduce the time and manpower consumption required for the rail surface polishing operation of the concrete running rail, thus running and maintenance of the running rail There is an effect that can reduce the overall costs required.

In addition, by performing the surface polishing on the running rail while the moving truck is moved along the guide rail installed on the outer wall, it is possible to significantly reduce the deviation of the flatness of the rail surface during the polishing operation, and thus The flatness can be evenly spread throughout, further improving overall driving performance when light rail travels.

In addition, in performing the surface polishing on the running rail, since the pre-treatment to form a scratch on the running rail surface after the pretreatment to adjust the degree of contact of the disk-shaped polishing wheel to the running rail according to the degree of scratch formation, thereby performing a full-scale polishing operation, It is possible to maintain the rail condition evenly over the overall height of the running rail and the flatness of the rail surface.

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

1 is a perspective view of a concrete running rail polishing apparatus for light rail according to an embodiment of the present invention, Figure 2, Figure 3 is a schematic front view for schematically showing the configuration of the pre-treatment and polishing unit shown in Figure 1, Figure 4 is a schematic plan view of a concrete running rail polishing apparatus for light rail according to an embodiment of the present invention.

1 to 4, the concrete running rail polishing apparatus for light rails according to the first embodiment of the present invention is a mobile bogie 10 moving on the concrete running rail along the guide rail (1), and earnest polishing operation It is made up of a pre-processing unit 20 for pretreatment for the running rail (2), which is the object to be polished, and a polishing unit (30) for polishing the rail surface of the running rail (2) before performing the concrete. The pretreatment and polishing operations are successively performed while moving on the running rails 2. The configuration of the present invention will be described in more detail.

The moving trolley 10 moves on the light rail traveling rail 2 along the guide rail 1 installed on the outer wall of the light rail. The moving trolley 10 includes at least two pairs of driving wheels 100 positioned on the guide rails 1 installed on the outer wall of the driving path, and a plurality of axles 110 rotatably supporting the driving wheels 100 ( 112 and the chassis 120 connecting the axle 110 and the axle 112 may be configured. Here, the guide rail 1 provides a path through which the moving trolley 10 can move in polishing the rail surface of the traveling rail 2 and at the same time sets the height of the traveling rail through polishing. do.

The mobile trolley 10 may be connected to the rear of the vehicle (movable body) through the traction wire to be towed to move, the front axle of the axles constituting the mobile trolley 10 as shown in FIG. 110 or the rear axle 112 is mounted with the starting motor 15, the rotational force of the starting motor 15 is driven through the transmission mechanism (shown in the drawing for example belt transmission) driving wheel 100 It can also be implemented in a form that can be self-starting through a configuration such that it can be delivered to.

The pretreatment unit 20 forms a scratch on the rail surface while contacting the rail surface of the travel rail 2 when the moving cart 10 moves along the guide rail 1. Scratch formed on the rail surface is a standard for measuring the flatness of the running rail 2 and the elevation difference for each section before performing the polishing operation in earnest. That is, as the depth of the scratches formed on the rail surface is deep and low, the flatness and the elevation difference of the rail surface for each section can be checked. By adjusting the height of the disc-shaped polishing wheel 300 with respect to the running rail 2 based on this, Polishing can be performed so that the rail surface of the traveling rail 2 has an even flatness and an elevation difference generally.

In detail, the pretreatment unit 20 is rotatably mounted to a frame extending downward from the front axle 110 toward the traveling rail 2 among the axles 110 and 112 constituting the moving cart 10. The pretreatment wheel 200 and the driving means 210 for providing power to the pretreatment wheel 200, for example, includes a drive motor.

The pretreatment wheel 200 is in contact with the rail surface of the running rail 2 while being supported by the frame, and rotates in a direction different from the moving direction of the moving cart 10 by the driving means 210 as described above. Scratches the face. As the pretreatment wheel 200, as shown in the figure, a saw blade protrudes over a predetermined distance in the axial direction of the wheel on the outer surface of the cylindrical wheel is applicable to a round saw polishing wheel having a structure advantageous for scratch formation.

The polishing unit 30 performs full-scale polishing of the pretreated rail surface while contacting the rail surface of the traveling rail 2 when the moving cart 10 moves along the guide rail 1. In the present invention, the polishing unit 30 has a configuration including a disk-shaped polishing wheel 300 and a driving means 310 for driving the disk-shaped polishing wheel 300 and driving it, for example, a driving motor. .

Specifically, the disk-shaped polishing wheel 300 extends downward toward the traveling rail 2 from the rear axle 112 spaced apart from the rear of the front axle 110 among the axles constituting the moving cart 10. The frame 114, which is rotatably mounted to the frame 114, and the disc-shaped polishing wheel 300 is mounted, has a deep and low scratch depth in the pretreatment process through the pretreatment unit 20, although not shown in the drawing. In accordance with the rail surface polishing according to the section, it has a stretchable structure that can adjust the vertical height of the disk-shaped polishing wheel 300 relative to the running rail (2).

In the present invention, in describing the polishing unit 30, the polishing unit 30 having a structure in which a pair of left and right disc-shaped polishing wheels 300 are mounted on one rear axle 112 is illustrated and described. In order to perform a more precise polishing, by moving the balance of the rear axle (112) by providing a pair of disk polishing wheels on the left and right of each axle with a different one or a plurality of axles, It is also desirable to allow polishing to be performed over multiple stages.

In implementing the polishing unit to have a structure in which the multi-stage polishing is performed, the particle size of the grindstone particles constituting the disk-shaped polishing wheel is applied to the rail surface as it moves from the front to the rear of the moving cart 10 in the moving direction. It is desirable to allow the fine grinding operation to be carried out step by step from coarse polishing during polishing.

5 is another embodiment of the present invention, as a view showing a configuration that further includes a spraying equipment 40 for injecting water to the pretreatment unit 20 of the polishing apparatus according to the above embodiment, in the embodiment of the invention Accordingly, the pretreatment unit 20 of the above-described polishing apparatus may further include a spraying device 40 for spraying water.

Referring to FIG. 5, the injection device 40 applied to the present embodiment is mounted on an extension frame 410 extending from the front axle 110 of the mobile trolley 10 to the front of the mobile trolley 10, and the pretreatment. Water is sprayed on the running rail in front of the wheel 200. Specifically, the injection device 40, a water tank (not shown) having a closed space to accommodate a certain amount of water, the injection nozzle 400 for injecting the water contained in the water tank on the running rail, It may be a configuration including a compressor (not shown) for generating a pneumatic pressure for providing the water contained in the water tank to the injection nozzle.

A water tank and a compressor (not shown) may be mounted on the extension frame 410 extending forward of the moving cart, and the injection nozzle 400 may have a discharge port facing the extension frame 410 and may be different from the water tank. It is preferred to connect the water so that it is flowable.

According to this embodiment, the injection device 40 is mounted on an extension frame 410 extending from the front axle of the mobile truck 10 to the front of the mobile truck, the injection device 40 is the pretreatment wheel 200 Water is sprayed on the front running rails 2. Water sprayed on the running rails 2 prevents dust generation and dust scattering during pretreatment and polishing operations. As a result, dust generation and scattering during the polishing process on the running rail 2 surface due to the application of the injection device 40 is significantly reduced, it is possible to create a more comfortable working environment.

Figure 6 is another embodiment of the present invention showing a configuration in which the foreign matter removing equipment 50 is mounted to the rear of the moving cart 10 of the polishing apparatus according to the above-described embodiment, dust and the like remaining on the rail after the polishing operation The foreign material removing device 50 may be further mounted on the extension frame 510 extending from the rear axle 112 of the mobile truck 10 to the rear of the mobile truck 10 to remove the foreign matter.

The foreign material removing apparatus 50 according to the present embodiment is preferably connected to the support shaft 502 and the support shaft 502 connected to the extension frame 510 extending from the rear axle 112 and the power motor ( It may be a configuration including a brush (500) for contact removal of the material on the running rail (2) that has been polished while rotating by rotating, by the reference (omitted), otherwise not shown in the figure, but instead of the brush An inhaler that is driven by suction to remove foreign substances on the running rails is also applicable.

Conventionally, a separate manpower and equipment are put in to remove the foreign matter remaining on the rail surface after the polishing process for the rail surface of the concrete running rail, but as in the present embodiment, the foreign matter removing equipment ( In the case of mounting 50), since a separate post-treatment for removing foreign matter remaining on the rail surface of the traveling rail 2 is not required, it is possible to reduce work manpower and overall costs associated with post-treatment.

The polishing operation for the light rail concrete running rail performed by the polishing apparatus according to the present invention having the above configuration will be described in connection with the operation of the polishing apparatus described above.

In the polishing operation of the light rail concrete running rail using the above-described polishing device, the surface of the running rail 2 is scratched through the pretreatment wheel 200 while moving on the light rail concrete running rail 2. And a polishing step of performing a full surface polishing on the traveling rail 2 through the disk-shaped polishing wheel 300 while moving on the running rail on which the scratch is formed through the pretreatment step and the pretreatment process.

In forming a scratch on the rail surface of the traveling rail 2 in the pretreatment step, the pretreatment unit 20 in front of the above-described moving trolley 10 moving along the guide rail 1 provided on the outer wall of the traveling path. Is performed. Specifically, when the moving cart 10 moves forward along the guide rail 1, the pretreatment wheel 200 of the pretreatment unit 20 rotates while being in contact with the rail surface of the traveling rail 2 on the rail surface. It can form a scratch.

Scratch formation on the rail surface as described above is carried out for the purpose of securing data to determine the flatness of the running rail and the elevation difference for each section before performing the polishing operation in earnest. That is, as the depth of the scratch is deep and low, data about the flatness and the elevation difference of the rail surface for each section can be obtained. Based on this, the height of the disk-shaped polishing wheel 300 for the driving rail for each section in the polishing step is determined. When adjusted, the rail surface of the traveling rail 2 can be polished to have an even flatness and an elevation difference in general.

Preferably, the pretreatment step may include the step of spraying water on the running rail prior to forming a scratch on the running rail (2) surface. Water injection to the running rail (2) can be carried out through the above-described injection device 40 mounted on the extension frame in front of the mobile bogie from the front axle of the mobile bogie 10, and thus the water injection process in the pretreatment step If included, dust generation and scattering during the polishing process on the running rail (2) surface is significantly reduced, thereby creating a more comfortable working environment.

Full surface polishing of the traveling rail in the polishing step is performed through the disk-shaped polishing wheel 300 mounted to the rear of the moving cart (10). At this time, by adjusting the vertical height of the disk-shaped polishing wheel 300 with respect to the running rail (2), that is, the surface pressure of the disk-shaped polishing wheel in contact with the running rail, as the scratch depth is deep and low during the pretreatment process, It is desirable to vary the degree of polishing on the surface.

In the polishing of the concrete running rail for light rail using the polishing device according to the present invention, preferably, to remove foreign substances remaining on the running rail after polishing the running rail surface through the disk-shaped polishing wheel in the polishing step. It may further comprise a post-processing step for.

In the post-treatment step, as illustrated in FIG. 6, the foreign material on the traveling rail, which has been polished by using the brush 500 rotated by the power motor, is removed, or the polishing is performed by using an inhaler driven by the power motor. Foreign substances on the running rails can also be removed by suction.

According to the present invention described above, as a moving trolley system moving along the rail, it is possible to significantly reduce the time and manpower consumption required for polishing the rail surface of the concrete running rail, thereby reducing the overall costs required for the maintenance and repair of the running rail. Can be saved.

In addition, the surface of the running rail is polished by moving the moving trolley along the guide rail installed on the outer wall, thereby significantly reducing the deviation of the flatness of the rail surface during the polishing operation, and thus the rail surface of the concrete running rail The flatness can be evenly spread throughout, further improving overall driving performance when light rail travels.

In addition, in performing the surface polishing on the running rail, since the pre-treatment to form a scratch on the running rail surface after the pretreatment to adjust the degree of contact of the disk-shaped polishing wheel to the running rail according to the degree of scratch formation, thereby performing a full-scale polishing operation, It is possible to maintain the rail condition evenly over the overall height of the running rail and the flatness of the rail surface.

In the detailed description of the present invention, only specific embodiments thereof have been described. It is to be understood, however, that the present invention is not limited to the specific forms referred to in the description, but rather includes all modifications, equivalents, and substitutions within the spirit and scope of the present invention as defined by the appended claims. Should be.

1 is a perspective view of a concrete running rail polishing apparatus for light rail according to an embodiment of the present invention.

2 and 3 are schematic front views for schematically showing the configuration of the pretreatment unit and the polishing unit shown in FIG. 1, respectively.

Figure 4 is a schematic plan view of a concrete running rail polishing apparatus for light rail according to an embodiment of the present invention.

Figure 5 is another embodiment of the present invention, a view showing a configuration further comprising a spray equipment for spraying water to the pretreatment unit of the polishing apparatus according to the present invention.

6 is a view showing a configuration in which the foreign matter removing equipment is mounted on the rear of the moving cart of the polishing apparatus shown in FIG. 1 as another embodiment of the present invention.

<Description of Signs of Major Parts of Drawings>

1 ... Information rail 2 ... Running rail

10 ... mobile cart 15 ... motor

20 Pretreatment unit 30 Polishing unit

40 ... Injection Equipment 50 ... Debris Removal Equipment

Driving wheels 110, 112 ...

120 Chassis 200 Pretreatment wheel

300 ... plate grinding wheels 210, 310 ...

400 ... blast nozzle 500 ... brush

Claims (14)

Apparatus for performing polishing on the concrete running rail for light rail, Two or more pairs of driving wheels located on the guide rails provided on the outer wall of the driving path, a plurality of axles rotatably supporting the driving wheels, and a vehicle connecting the axles and the axles, for light rail along the guide rails. A moving trolley moving on the concrete running rail; Of the axles constituting the mobile trolley is rotatably mounted on the frame extending downward from the front axle toward the running rail, the pre-treatment wheel in contact with the running rail, and driving the pre-treatment wheel by providing power to the pre-treatment wheel A preprocessor comprising means; And A disk-type polishing wheel rotatably mounted on a frame extending downward from the rear axle spaced behind the front axle of the moving axle constituting the moving trolley toward the traveling rail, and capable of adjusting a vertical height with respect to the traveling rail; And a grinding unit made of driving means for driving the disk-shaped polishing wheel by providing power to the disk-shaped polishing wheel. The method of claim 1, The moving cart, And a movable motor mounted on the front axle or the rear axle and capable of self-starting along the guide rail by an electric mechanism that transmits the rotational force of the starting motor to the travel wheels. The method of claim 1, The pretreatment wheel, The concrete traveling rail polishing device for light rail, characterized in that to form a scratch on the running rail surface while rotating by the drive means when the contact movement along the concrete running rail by the moving cart. The method of claim 3, wherein The pretreatment wheel for forming a scratch on the running rail surface, The circular running wheel polishing device for light rails, characterized in that the saw blade protrudes over a predetermined distance in the axial direction of the wheel on the outer surface of the cylindrical wheel. The method according to any one of claims 1 to 4, Preprocessing unit, A concrete running rail polishing device for light rails, further comprising: a spraying device mounted on an extension frame extending from the front axle of the moving cart to the front of the moving cart and spraying water onto the traveling rail in front of the pretreatment wheel. . The method of claim 5, The injection equipment, A water tank mounted on the extension frame and receiving a predetermined amount of water; An injection nozzle having a discharge port toward the front of the extension frame and connected to the water tank so that the water is flowable; And And a compressor mounted on the extension frame and generating a pneumatic pressure for providing the water contained in the water tank to the injection nozzle. The method of claim 5, And a foreign material removal device mounted on an extension frame extending from the rear axle of the mobile truck to the rear of the mobile truck, and removing foreign matter remaining on the traveling rail after polishing through the disc-shaped polishing wheel. Concrete running rail grinding machine for light rail. The method of claim 7, wherein The foreign material removal equipment, A support shaft connected to the extension frame extending from a rear axle; And And a brush which is connected to the support shaft and removes the foreign matter on the traveling rail on which the polishing is performed while rotating by the power motor. The method of claim 7, wherein The foreign material removal equipment, A support shaft connected to the extension frame extending from a rear axle; And And an inhaler connected to the support shaft and driven by a power motor to suck and remove foreign substances on the running rails. A pretreatment step of forming a scratch on the surface of the running rail through a pretreatment wheel while moving on a concrete running rail for light rail; And And a polishing step of performing a surface polishing on the traveling rail through a disk-shaped polishing wheel while moving on the running rail on which the scratch is formed through the pretreatment process. The method of claim 10, In the pretreatment step, The concrete running rail polishing method for light rail, comprising the step of spraying water on the running rail before forming a scratch on the running rail surface. The method of claim 10, The post-treatment step of removing the foreign matter remaining on the running rail after the running rail surface polishing through the disk-shaped polishing wheel; concrete running rail polishing method for light rail. 13. The method of claim 12, In the post-treatment step, The concrete running rail polishing method for light rail, characterized in that to remove the foreign matter on the running rail is polished by using a brush rotated by a power motor. 13. The method of claim 12, In the post-treatment step, A concrete running rail polishing method for light rail, characterized in that by suction suction to remove the foreign matter on the running rail is polished by using an inhaler driven by a power motor.

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