KR20220109245A - Moving apparatus in tunnel - Google Patents

Abstract

The present invention relates to an in-tunnel mobile device. Specifically, according to one embodiment of the present invention, the in-tunnel mobile device includes: a conveying body; a magnetic rotating body including a rotating shaft rotatably installed in the conveying body and a screw magnet provided on an outer diameter part of the rotating shaft; a movement trajectory providing a movement path of the conveying body; a levitation unit for self-levitating the conveying body on the movement trajectory; and a rail magnet installed on the movement trajectory parallel to the movement path and having a polarity corresponding to the screw magnet so that the conveying body moves on the movement trajectory when the magnetic rotating body rotates, wherein the movement trajectory may include a plurality of straight rails arranged in a curved shape and continuously spaced apart so that the conveying body moves in a curvature manner. Embodiments of the present invention are intended to provide the in-tunnel mobile device capable of moving smoothly in a curved section within a tunnel.

Description

MOVING APPARATUS IN TUNNEL}

The present invention relates to a mobile device in a tunnel.

In general, an automated movement system obtains rotational force by an electric motor and converts rotational motion into linear motion to transport raw materials and products.

However, this automated movement system has limitations in speed increase and control due to the mechanism of the components, and friction occurs at each part where the components change according to the application of mechanical devices, so noise, vibration, and dust generation are inevitable. In addition, in order to reduce the frequency of failure, inspection of the corresponding component, replacement of parts, and repair, etc. must be performed periodically, which inevitably leads to an increase in maintenance costs.

For example, if a rack & pinion structure is applied to an automated movement system, breakage of the rack and pinion and foreign objects may be caused, and oil is periodically injected to prevent wear of the rack and pinion. As time goes by, there may be a gap between the rack and pinion.

In order to solve the problems of the conventional automated movement system, a magnetic transfer system using magnetic force has recently been introduced. The magnetic transfer system is a system configured by applying a propulsion principle using magnetic force, and includes a fixed body provided with a magnetic member such as electromagnetic force or a permanent magnet, and a transfer body transferred to a destination through magnetic force with the fixed body.

However, in using the conventional magnetic transport system, when the transport body moves in a curved section in the tunnel, if the magnetic force arrangement between the transport body and the fixed body in the curved section is not made smoothly, it is difficult to move the transport body stably in the curved section. This may cause the vehicle to deviate from its path.

Embodiments of the present invention were invented in the background as described above, and an object of the present invention is to provide a moving device in a tunnel that can move smoothly in a curved section in a tunnel.

According to one aspect of the present invention, the carrier; a magnetic rotating body including a rotating shaft rotatably installed on the transport body and a screw magnet provided on an outer diameter of the rotating shaft; a movement trajectory providing a movement path of the transport body; a levitation unit for magnetically levitating the transport body on the moving trajectory; and a rail magnet installed on the movement track to be parallel to the movement path, and having a polarity corresponding to the screw magnet so that the transport body moves on the movement track when the magnetic rotating body rotates, wherein the movement track includes the It may include a plurality of straight rails arranged to be continuously spaced apart in a curved shape so that the transport body is moved curvature.

In this case, the screw magnet may include: a first screw magnet spaced apart from the outer diameter portion of the rotation shaft along the longitudinal direction of the rotation shaft; and a second screw magnet disposed on an outer diameter portion of the rotation shaft to alternate with the first screw magnet.

In addition, the rail magnet may include a first rail magnet spaced apart from the straight rail; and a second rail magnet alternately disposed with the first rail magnet in the straight rail.

In addition, the first rail magnet and the second rail magnet may be continuously arranged at an end of the linear rail spaced apart to be inclined at a predetermined angle with respect to the linear extension line of the moving track.

In addition, the first screw magnet and the second screw magnet may be alternately disposed to be inclined along the longitudinal direction of the rotation shaft.

In addition, the levitation unit may include a first levitation magnet provided under the transport body; And it is installed on the movement track so as to be opposed to the first floating magnet, it may include a second floating magnet to form a magnetic force so that the first floating magnet and the repulsive force act.

In addition, the present invention may further include a guide unit for maintaining the balance of the transport body on the movement track.

In addition, the guide unit may include a first roller for maintaining a horizontal balance of the conveying body; and a second roller for maintaining vertical balance of the movable body.

According to embodiments of the present invention, since the rail magnets are continuously arranged at regular intervals in the curved section of the tunnel, it is possible to stably move the conveying body, and there is an effect that an accurate positional movement of the conveying body is possible.

In addition, according to the embodiments of the present invention, since the magnetic force is continuously applied between the rail magnet and the screw magnet in the curved section, it is possible to prevent in advance the path deviation of the transport body that may be caused during movement in the curved section, and , there is an effect that it is possible to implement a stable transfer of the transfer object.

In addition, according to embodiments of the present invention, it is possible to control the magnetic levitation force by adjusting the gap according to the weight, and there is an effect that the exchange of parts can be significantly reduced by non-contact driving.

1 is a perspective view showing a mobile device in a tunnel according to an embodiment of the present invention.
2 is an exploded perspective view showing the disassembled moving body of the moving device in the tunnel according to an embodiment of the present invention.
FIG. 3 is a front view of the moving body of the moving device in the tunnel as viewed from part “AA” of FIG. 2 .
Figure 4 is a plan view showing a state in which the straight rail of the moving device in the tunnel according to an embodiment of the present invention is continuously arranged.
FIG. 5 is an enlarged view showing an enlarged portion "A" of FIG. 4 .

Hereinafter, specific embodiments for implementing the spirit of the present invention will be described in detail with reference to the drawings.

In addition, in the description of the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted.

In addition, when it is said that a component is 'connected', 'supported', 'supplied', 'transferred', or 'contacted' to another component, it may be directly connected, supported, supplied, transmitted, or contacted with the other component. However, it should be understood that other components may exist in between.

The terminology used herein is only used to describe specific embodiments and is not intended to limit the present invention. The singular expression includes the plural expression unless the context clearly dictates otherwise.

In addition, in the present specification, the expressions of the upper side, the lower side, the side surface, etc. are described with reference to the drawings in the drawings, and it is disclosed in advance that if the direction of the corresponding object is changed, it may be expressed differently. For the same reason, some components are exaggerated, omitted, or schematically illustrated in the accompanying drawings, and the size of each component does not fully reflect the actual size.

Also, terms including an ordinal number such as 1st, 2nd, etc. may be used to describe various components, but the components are not limited by these terms. These terms are used only for the purpose of distinguishing one component from another.

The meaning of "comprising," as used herein, specifies a particular characteristic, region, integer, step, operation, element and/or component, and other specific characteristic, region, integer, step, operation, element, component, and/or group. It does not exclude the existence or addition of

Meanwhile, it has been described below that the object clamped to the tray of the mobile device is a PCB, but this is only an example, and the spirit of the present invention is not necessarily limited thereto. In other words, various types of panels in addition to the PCB may be clamped to the tray of the mobile device.

Hereinafter, a detailed configuration of a mobile device in a tunnel according to the present invention will be described with reference to FIGS. 1 to 5 .

1 to 5 , the moving device 10 in the tunnel according to an embodiment of the present invention is a transport body 100 , a magnetic rotating body 200 , a moving track 300 , and a floating unit 400 . , it may include a rail magnet 500 and a guide unit 600 .

Specifically, the transfer body 100 may move to a destination along the movement path W of the movement track 300 . For example, the transport body 100 may move linearly along the movement trajectory 300 or may move curvedly along the movement trajectory 300 disposed in the tunnel. The transport body 100 may load or unload an article at a destination. A magnetic rotating body 200 may be provided under the transport body 100 .

The transfer body 100 is installed under the transfer plate 110 such that the transfer plate 110, the transfer case 120 assembled on the upper portion of the transfer plate 110, and the magnetic rotating body 200 are mounted. In order to protect the transfer body 130 and the guide unit 600 , it may include a transfer cover 140 mounted on both sides of the transfer plate 110 .

The magnetic rotating body 200 may move the transport body 100 by using the magnetic force of the rail magnet 500 . To this end, the magnetic rotating body 200 may include an actuator 230 , a rotating shaft rotatably installed under the transport body 100 , and a screw magnet 220 provided at an outer diameter of the rotating shaft. The actuator 230 may be driven and connected to the rotation shaft to provide a driving force for rotating the rotation shaft to the rotation shaft. The actuator 230 may be, for example, a motor.

And the rotating shaft may be rotatably installed on the lower center side of the transport body 100 so as to be parallel to the longitudinal direction of the transport body (100). The rotating shaft may be rotated by receiving a driving force from the actuator 230 . In the present embodiment, a single rotation shaft is installed on the lower central side of the transport body 100 , but is not limited thereto, and a plurality of rotation shafts may be installed on the lower central side of the transport body 100 , of course.

In addition, the screw magnet 220 has a magnetic force and may be rotated by a rotating shaft. The screw magnet 220 may have a spiral shape surrounding the outer diameter of the rotation shaft. The screw magnet 220 includes a plurality of first screw magnets 221 provided to be spaced apart from the outer diameter of the rotary shaft, and a plurality of first screw magnets 221 provided on the outer diameter of the rotary shaft to be alternately disposed with the first screw magnets 221 . 2 may include a screw magnet 222 . For example, the first screw magnet 221 may be an N-pole magnetic material, and the second screw magnet 222 may be a S-pole magnetic material. The N-pole magnetic material and the S-pole magnetic material may be permanent magnets or electromagnets.

The first screw magnet 221 and the second screw magnet 222 are alternately arranged at the outer diameter portion of the rotation shaft, and may be disposed to be inclined at a predetermined angle in an oblique direction shifted from the longitudinal direction of the rotation shaft. When the first screw magnet 221 and the second screw magnet 222 are positioned to face the first rail magnet 501 and the second rail magnet 500, respectively, the first screw magnet 221 and the second screw The diagonal direction in which the magnet 222 extends may be the same diagonal direction as that of the first rail magnet 501 and the second rail magnet 502 .

The movement trajectory 300 may provide a movement path W in which the transport body 100 can move in a straight line. The moving track 300 includes a rail body 310 providing a movement path W, a rail groove 320 formed on both sides of the rail body 310 so that the guide roller 602 is supported, and the rail body. It may include a rail support 330 for supporting the 310 and a rail bracket 150 assembled to an end of the rail body 310 .

In addition, the movement trajectory 300 may provide a movement path W in which the transport body 100 can move in a curved manner. To this end, the moving track 300 may be composed of a plurality of straight rails 301 , 302 , 303 , 304 , etc. that are continuously spaced apart in a curved shape. For example, an end of one straight rail 302 and an end of another straight rail 301 or 303 adjacent to each other are continuously arranged at a predetermined angle inclined with respect to the straight extension line of the movement track 300, thereby moving The track 300 may be formed in a curved shape as a whole, and as a result, the transport body 100 may be moved to be curved on the movement track 300 .

The rail magnet 500 may be provided in plurality that are continuously installed along the longitudinal direction of the moving track 300 . The plurality of rail magnets 500 may have a polarity corresponding to the screw magnet 220 so that the transport body 100 moves when the magnetic rotating body 200 rotates.

For example, the rail magnet 500 is a first rail magnet 501 that is spaced apart along the longitudinal direction in the straight rail (301, 302, 303, 304, etc.) to correspond to the first screw magnet 221, and It may include a second rail magnet 502 alternately disposed with the first rail magnet 501 in the straight rails (301, 302, 303, 304, etc.) to correspond to the two screw magnets 222 .

The first rail magnet 501 and the second rail magnet 502 may be disposed to be inclined at a predetermined angle in an oblique direction shifting with respect to the longitudinal direction of the moving track 300 . The diagonal direction in which the first rail magnet 501 and the second rail magnet 502 extend is the first screw of the magnetic rotating body 200 in which the first rail magnet 501 and the second rail magnet 502 face each other. The magnet 221 and the second screw magnet 222 may be in the same oblique direction.

In particular, the first rail magnet 501 or the second rail magnet 502 disposed at the ends of the straight rails 301, 302, 303, 304, etc., is a pair of different straight rails 301 spaced apart adjacent to each other. , 302 , 303 , 304 , etc.) may be alternately arranged to be continuous with the first rail magnet 501 or the second rail magnet 502 disposed at the end. For example, when a part of the first rail magnet 501 is disposed at the end of one straight rail 302, the first rail magnet 501 is disposed at the end of the other straight rail 303 spaced apart adjacently. By disposing the remaining part of, at the ends of a pair of different straight rails 302 and 303 spaced apart from each other, they may be alternately arranged continuously (see FIG. 4 ).

The flotation unit 400 may provide levitation force for levitating the transport body 100 on the movement track 300 . The levitation unit 400 may include a first levitating magnet 410 and a second levitating magnet 420 . The first floating magnet 410 may be provided on both lower sides of the transport body 100 . The second floating magnet 420 may be installed on the moving track 300 to face the first floating magnet 410 . The second floating magnet 420 may form a magnetic force such that the first floating magnet 410 and the repulsive force act.

As an example, the first floating magnet 410 and the second floating magnet 420 may be S-pole magnetic materials in which repulsive force is applied to each other. Alternatively, the first floating magnet 410 and the second floating magnet 420 may be an N-pole magnetic material in which a repulsive force is applied to each other.

The guide unit 600 may maintain the balance of the transport body 100 on the movement trajectory 300 . The guide unit 600 may include a first roller 610 for maintaining the horizontal balance of the conveying body 100 and a second roller 620 for maintaining the vertical balance of the moving body 100 . have.

The first roller 610 and the second roller 610 may include a rotating bar 601 and a guide roller 602 . The rotation bar 601 of the first roller 610 may be vertically mounted under the transport body 100 so that the guide roller 602 can be supported by the rail groove 320 . The rotation bar 601 of the second roller 620 may be mounted in a horizontal direction from the lower portion of the transport body 100 so that the guide roller 602 can be supported on the upper surface of the rail body 310 .

In this way, the outer diameter of the guide roller 602 of the first roller 610 is supported on the side of the moving track 300, more specifically, the rail groove 320 of the moving track 300, so that the movable body 100 moves the moving track ( It is possible to maintain the horizontal balance of the transport body 100 on the 300). In addition, the outer diameter of the guide roller 602 of the second roller 620 is supported on the upper surface of the moving track 300, more specifically, on the upper surface of the rail body 310 of the moving track 300, so that the moving body 100 moves the moving track ( It is possible to maintain the vertical direction balance of the transport body 100 on the 300).

Hereinafter, the operation and effect of the mobile device in the tunnel having the above-described configuration will be described.

First, in a state in which the transport body 100 is positioned on the movement trajectory 300 , the transport body 100 may float on the movement trajectory 300 . For example, when the transport body 100 is positioned on the moving track 300 , the first floating magnet 410 installed on the transport 100 and the second floating magnet 420 provided on the moving track 300 are mutually Located opposite to each other, at this time, these first floating magnet 410 and the second floating magnet 420 are repulsive to each other, so the transfer body 100 can maintain a floating state on the moving track 300 .

Thereafter, when the driving force of the actuator 230 is provided to the rotating shaft, the screw magnet 220 may be rotated in association with the rotating shaft. When the screw magnet 220 rotates, by the magnetic force between the rail magnets 500 provided on the movement track 300 , the transport body 100 may be moved along the movement path W of the movement track 300 . At this time, since the transport body 100 is supported by the guide roller 602 of the guide unit 600 on the rail groove 320 of the moving track 300 and the upper surface of the rail body 310 , the transport body 100 moves It is possible to maintain horizontal and vertical balance on the track 300 .

In particular, when the transport body 100 passes through a tunnel in which a plurality of straight rails (301, 302, 303, 304, etc.) are arranged spaced apart in succession in a curved shape, the straight rails (301, 302, 303, 304, etc.) The first rail magnet 501 or the second rail magnet 502 is alternately inclined at a predetermined angle with respect to the linear extension line of the moving track 300 at the ends of a pair of linear rails spaced apart from each other. Since it is continuously arranged, the magnetic force may be continuously applied between the rail magnet 500 and the screw magnet 220 within the curved section of the transport body 100 . As a result, since the transport body 100 is capable of smooth and stable curve movement within the curved section, it is possible to prevent in advance the path deviation of the transport body 100 that may be caused during the transport in the curved section.

Although the embodiments of the present invention have been described as specific embodiments, these are merely examples, and the present invention is not limited thereto, and should be interpreted as having the widest scope according to the basic idea disclosed in the present specification. A person skilled in the art may implement a pattern of a shape not specified by combining/substituting the disclosed embodiments, without departing from the scope of the present invention. In addition, those skilled in the art can easily change or modify the disclosed embodiments based on the present specification, and it is clear that such changes or modifications also fall within the scope of the present invention.

100: transfer body 110: transfer plate
120: transfer case 130: transfer body
140: transfer cover 150: rail bracket
200: magnetic rotating body 220: screw magnet
221: first screw magnet 222: second screw magnet
230: actuator 300: movement trajectory
301, 302, 303, 304: straight rail
310: rail body 320: rail groove
330: rail support 400: floating unit
410: first floating magnet 420: second floating magnet
500: rail magnet 501: first rail magnet
502: second rail magnet 600: guide unit
610: first roller 620: second roller
601: rotary bar 602: guide roller

Claims (8)

vehicle;
a magnetic rotating body including a rotating shaft rotatably installed on the transport body and a screw magnet provided on an outer diameter of the rotating shaft;
a movement trajectory providing a movement path of the transport body;
a levitation unit for magnetically levitating the transport body on the moving trajectory; and
A rail magnet installed on the movement track to be parallel to the movement path, and having a polarity corresponding to the screw magnet so that the transport body moves on the movement track when the magnetic rotating body rotates,
The moving trajectory is
Containing a plurality of straight rails arranged to be spaced apart in succession in a curved shape so that the conveying member is moved in a curvature,
Mobile devices in the tunnel. The method of claim 1,
The screw magnet is
a first screw magnet spaced apart from the outer diameter portion of the rotation shaft along the longitudinal direction of the rotation shaft; and
Containing a second screw magnet disposed on the outer diameter of the rotation shaft alternately with the first screw magnet,
Mobile devices in the tunnel. 3. The method of claim 2,
The rail magnet is
a first rail magnet spaced apart from the straight rail; and
Containing a second rail magnet continuously arranged to alternate with the first rail magnet in the straight rail,
Mobile devices in the tunnel. 4. The method of claim 3,
At the ends of the straight rails spaced apart,
The first rail magnet and the second rail magnet are alternately arranged continuously at a predetermined angle with respect to the linear extension line of the moving track,
Mobile devices in the tunnel. 4. The method of claim 3,
The first screw magnet and the second screw magnet,
It is arranged to be alternately inclined along the longitudinal direction of the rotation shaft,
Mobile devices in the tunnel. The method of claim 1,
the injured unit
a first floating magnet provided at the lower portion of the transport body; and
It is installed on the movement track so as to be opposed to the first floating magnet, comprising a second floating magnet forming a magnetic force so that the first floating magnet and a repulsive force act,
Mobile devices in the tunnel. The method of claim 1,
Further comprising a guide unit for maintaining the balance of the conveying body on the moving trajectory,
Mobile devices in the tunnel. 8. The method of claim 7,
The guide unit
a first roller for maintaining the horizontal balance of the conveying body; and
Including a second roller for maintaining the vertical balance of the moving body,
Mobile devices in the tunnel.

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