KR100835301B1 - Truck for cleaning tunnel - Google Patents

Abstract

A tunnel cleaning truck is provided to clean almost all parts of a tunnel wall by recognizing attachments on the wall automatically and changing the position of a brush. A tunnel cleaning truck comprises a lift support(32), a plurality of ach lifts(40), a brush guard(50), a brush(60), a drive unit(70), a cleaning water tank(20), a cleaning water nozzle, and an obstacle sensor. The lift base rotates around an axis parallel to a truck(10). The arch lifts, which are mounted on the lift base, extend by several steps. The brush guard, whose top is open, moves along the lifts. The drive unit extends and contracts the lifts and causes the brush guard to move along the lifts. The brush rotates in the brush guard, sweeping foreign matters attached on the curved wall. The obstacle sensor is installed at the brush guard to sense attachments on the wall of the tunnel.

Description

Truck for cleaning tunnel

1 is a perspective view schematically showing the configuration of an embodiment of a tunnel cleaning vehicle according to the present invention

FIG. 2 is a rear view of the tunnel cleaning vehicle of FIG. 1.

3 is a perspective view showing a cleaning brush of the tunnel cleaning vehicle of FIG. 1 and a configuration for driving the cleaning brush;

4 to 6 are views illustrating an operation in which the lift is extended by the cleaning brush guard driving device of the tunnel cleaning vehicle of FIG. 1.

FIG. 7 is a view for explaining an operation of moving a movable plate along a lift by the cleaning brush guard driving device of the tunnel cleaning vehicle of FIG. 1.

Explanation of symbols on the main parts of the drawings

10: vehicle 20: washing water tank

22: hose 31: lift base

32: lift support 33, 34: the first and second hydraulic cylinder

40: lift 40-1: first stage lift

40-2: second stage lift 40-3: third stage lift

40-4: 4th step lift 50: cleaning brush guard

52: obstacle detection sensor 54: lifting shaft

60: cleaning brush 62: motor

70: drive unit 71: spline

72: upper gear 72-1: first stage upper gear

72-2: Second stage upper gear 72-3: Third stage upper gear

72-4: 4th stage upper gear 73: upper gear rotation motor

74: lower shaft 75: lower gear

75-1: 1st stage lower gear 75-2: 2nd stage lower gear

75-3: 3rd gear lower gear 75-4: 4th gear lower gear

77: movable plate

The present invention relates to a tunnel cleaning vehicle for cleaning a tunnel, and more particularly, to a tunnel cleaning vehicle capable of easily and quickly and automatically cleaning a curved tunnel such as a semicircle.

As is well known, foreign matters such as dust and muddy water that are scattered when the vehicle is running and particulates such as carbon contained in the exhaust gas of the vehicle are condensed to the wall or interior of the tunnel. Clean the foreign substances attached to the wall periodically using the.

Conventional tunnel cleaners or tunnel cleaners are cleaning the tunnel by spraying the cleaning solution on the wall and at the same time scraping the wall while the cleaning brush rotates or repeatedly moves.

However, since most conventional tunnel cleaning devices or tunnel cleaning vehicles are not configured to move the cleaning brush along the curved surface of the tub, there is no problem in cleaning a straight tunnel, that is, a tunnel having a rectangular cross section, which is relatively short in length. There is an inadequate problem in cleaning tunnels having relatively long curved cross sections.

That is, since the structure of the cleaning brush does not move along the curved surface, the area where the cleaning brush does not reach is generated, and thus the worker has to manually scrape the place where the cleaning brush has passed by a separate cleaning tool, thereby significantly reducing work efficiency.

In addition, the conventional tunnel cleaning device is splashed water and foreign matter in all directions in the process of rotating or repeated movement of the cleaning brush, re-contamination occurs by splashing foreign matter with water even in the portion where the cleaning is finished, the worker approaches and post-processing There is a problem that is difficult to carry out.

In addition, the tunnel cleaning method using a conventional tunnel cleaning device or a tunnel cleaning car is mainly dependent on night work to avoid traffic congestion because the work efficiency is low, such as the need to perform cleaning after removing all the lamp shades and other structures on the tunnel wall. Not only does cleaning not get clean, but in the case of long tunnels, the work area is divided into several parts, which requires a lot of equipment and workers, which is cumbersome and expensive, resulting in uneconomical problems.

The present invention is to solve the above-mentioned problems, an object of the present invention is to move the cleaning brush along the curved wall to perform the cleaning to improve the cleaning efficiency, to enable a quick and clean cleaning tunnel In providing a sweeper.

Another object of the present invention is to provide a tunnel cleaning vehicle which can further improve the cleaning efficiency by automatically recognizing the structure attached to the tunnel wall to perform the cleaning by changing the position of the cleaning brush.

Still another object of the present invention is to provide a tunnel cleaning vehicle which can prevent re-contamination by preventing water and foreign substances from splashing on the parts of cleaning completed when the cleaning brush is operated.

The present invention for achieving the above object, and a lift support is installed rotatably around a horizontal axis in the vehicle; A plurality of arc-shaped lifts which are supported on the lift support and are elastically installed in multiple stages; A cleaning brush guard installed to move along the lift and configured to open at an upper surface thereof; A drive device configured to expand and contract the arc lifts and to move the cleaning brush guard along the lift; A cleaning brush installed to rotate inside the cleaning brush guard to scrape foreign substances from the wall; A washing liquid tank mounted on the vehicle and storing washing liquid; It is installed in the cleaning brush guard, provides a tunnel cleaning vehicle comprising a cleaning liquid spray nozzle for supplying the cleaning liquid from the cleaning liquid tank and spraying to the wall surface or the cleaning brush of the tunnel.

According to the present invention, since the lift is spread in multiple stages to fit the curved shape of the tunnel, and the cleaning brush moves along the lift to perform cleaning, the cleaning brush is uniformly in contact with almost all parts of the tunnel, thus requiring additional work by the operator. And cleaning performance is greatly improved.

Hereinafter, with reference to the accompanying drawings will be described in detail a preferred embodiment of the tunnel cleaning vehicle according to the present invention.

1 to 3, the washing liquid tank 20 in which the washing liquid is stored is installed at the rear of the vehicle 10, and the rear of the washing liquid tank 20 rotates around an axis in which the lift base 31 is vertical. It is installed to be possible, the lift base 32 is installed to be rotatable about a horizontal axis of rotation (not shown). The lift support 32 is rotated in the vertical direction by the first hydraulic cylinder (33).

In addition, the lift support 32 is provided with a plurality of arc-shaped lifts 40 having a truss structure. In this embodiment, the lifts 40 are made up of the first to fourth stage lifts 40-1 to 40-4, but the number of lifts can be adjusted as needed. For the sake of understanding, the first position lift 40-1 to the fourth stage lift 40-4 will be described by the lift located at the outermost position in the folded state.

The lifts 40 are moved up and down by two second hydraulic cylinders 34 on the lift pedestal 32 and their position in the radial direction relative to the lift pedestal 32 is adjusted. At the end of the last fourth stage lift 40 among the lifts 40, a lift auxiliary wheel 45 for supporting the lift 40 to be movable on the bottom surface when the lift 40 is extended is installed. .

Lift gears 41 are formed at upper ends of the lifts 40 in the circumferential direction.

The cleaning brush guard 50 formed to open the upper surface is installed on the lift 40 to move along the lift 40. The cleaning brush 60 inside the cleaning brush guard 50 is installed to rotate while the motor 62 rotates to scrape foreign substances from the inner wall surface of the tunnel.

In addition, a plurality of injection nozzles (not shown) are formed on the inner surface of the cleaning brush guard 50 to spray the cleaning liquid supplied from the cleaning liquid tank 20 to the inner wall surface of the tunnel. The injection nozzle (not shown) is connected to a pump (not shown) of the washing liquid tank 20 by a flexible hose 22 to receive water.

In addition, both side portions of the cleaning brush guard 50 is provided with a plurality of obstacle detection sensors 52 for detecting a structure installed on the inner wall surface of the tunnel, for example, a light, a guide plate. The obstacle detecting sensor 52 may be configured using a proximity sensor.

The cleaning brush guard 50 is installed to be movable up and down on the movable plate 77 installed to be movable along the lift 40. That is, the lifting shaft 54 which is installed to vertically penetrate the movable plate 77 is fixed to the center of the lower end of the cleaning brush guard 50, the rack gear along the axial direction on the outer surface of the lifting shaft 54 55 is provided, and the lower part of the movable plate 77 includes a pinion gear 57 meshing with the rack gear 55 and a lift motor 56 for rotating the pinion gear 57.

In addition, the movable plate 77 is provided with a driving device 70 for stretching the lift 40 and moving the movable plate 77 along the lift 40. As shown in Figs. 3 and 4, the drive device 70 is configured to rotate together with two splines 71 configured to be able to move in the axial direction with respect to each other but not in the circumferential direction. And first to fourth-stage upper gears 72-1 to 72-4 provided at the outer ends of the two splines 71 in the same number of stages as the lift 40, and both ends of the movable plate 77. The first to fourth stage lifts 40 through lower shafts 74 installed in the lower shafts 74 and through holes 77a formed in the movable plate 77 to be independently rotatable in the lower shafts 74. First to fourth gears that engage with the lift gears 41 of the lower gear 75, the upper gear rotation motor 73 for rotating the spline 71, and the splines 71 opposite to each other in the axial direction. When the upper gear moving unit (not shown) for moving and each of the lower gears 75 is individually fixed or released It is configured to include a lower gear locking unit (not shown).

A pair of 'L' shaped guides 78 are formed at a lower side of each through hole 77a of the movable plate 77 so as to be movably connected to an upper end of the lift 40.

The first to fourth stage upper gears 72-1 to 72-4 are selectively engaged with the first to fourth lower gears 75 according to the axial movement of the spline 71. Although not shown in the drawings, an upper gear moving unit (not shown) for moving the spline 71 in the axial direction is, for example, two to which the respective spline 71 and the upper gear rotation motor 73 are fixed. Two spline fixing plates, a rack gear installed in each of the spline fixing plates in the same direction as the axial direction, a pinion gear that meshes with the rack gears to move the rack gear, and a motor for moving the pinion gear. Can be.

In addition, the first to fourth stage lower gears 75 are configured to rotate independently with respect to the lower shaft 74 by interposing a bearing (not shown) between the lower shaft 74 and the lower gear. Rotation about the lower shaft 74 is constrained by a locking unit (not shown). The lower gear locking unit (not shown) may be variable in length by, for example, hydraulic or electrical energy to the movable plate 77 so that the first to fourth stage lower gears 75 are provided by hydraulic or electrical energy. It may be configured as a locking bar that is selectively inserted into the inside of.

The tunnel cleaning vehicle of the present invention configured as described above operates as follows.

The four lifts 40 are folded before the tunnel sweeper performs the cleaning. First, the hydraulic pressure is supplied to the first hydraulic cylinder 33 and the second hydraulic cylinder 34 to align the lift 40 to fit the curved shape of the tunnel.

Then, the lift 40 is sequentially extended by using the first to fourth stage upper gears 72-1 to 72-4 and the first to fourth stage lower gears 75 of the driving device 70.

That is, as shown in FIG. 4, the fourth stage upper gear 72-4 is engaged with the first stage lower gear 75-1 by moving the spline 71 in the axial direction. The lower gears 75-2, 75-3, and 75-4 are fixed using the lower gear locking unit (not shown).

When the spline 71 is rotated by the upper gear rotation motor 73, the first to fourth stage upper gears 72-1 to 72-4 rotate, and thus the second, third and fourth stages are lower. In the state where the gears 75-2, 75-3, 75-4 are fixed, only the first stage lower gear 75-1 is rotated, and the first stage lower gear 75-1 is the first stage lift ( It moves along the lift gear 41 of 40-1 (refer FIG. 2). At this time, since the second, third and fourth gears 75-2, 75-3 and 75-4 are fixed, the second, third and fourth gears 40-2, 40-3 and 40-4 are fixed. (See FIG. 2) is pulled out together with the drive device 70 and the movable plate 77. That is, the second, third and fourth lifts 40-2, 40-3 and 40-4 extend outward with respect to the first lift 40-1.

Subsequently, as shown in FIG. 5, the spline 71 is moved in the axial direction so that the third and fourth stage upper gears 72-3 and 72-4 are respectively the first and second stage lower gears 75-1, 75-2) and third and fourth lower gears 75-3 and 75-4 are fixed.

In this state, when power is applied to the upper gear rotation motor 73 so that the first to fourth gear upper gears 72-1 to 72-4 rotate, the first gear lower gear 75-1 to the first gear is rotated. Since it is out of the first stage lift 40-1, it is in an idle state during rotation, and the driving device 70 and the movable plate 77 are driven by the second stage lower gear 75-2. Move along 40-2). At this time, since the third and fourth stage lower gears 75-3 and 75-4 are fixed, the third and fourth stage lifts 40-3 and 40-4 are driven by the driving device 70 and the movable plate ( 77, it is drawn with respect to the second lift 40-2 and extended outward.

In the same manner, as shown in FIG. 6, the second, third and fourth stage upper gears 72-2, 72-3 and 72-4 are replaced with the first, second and third stage lower gears 75-1 and 75-. 2, 75-3) and secure the fourth gear lower gear (75-4).

Then, when power is supplied to the upper gear rotary motor 73 to rotate the first to fourth gears 72-1 to 72-4, the first and second gears 75-1 and 75- are rotated. 2) is out of the first and second stage lifts 40-1 and 40-2 and thus becomes idle when rotated, and the driving device 70 is rotated by the third stage lower gear 75-3. ) And the movable plate 77 are moved along the third lift 40-3. At this time, since the fourth stage lower gear 75-4 is fixed, the fourth stage lift 40-4 is the third stage lift 40-3 together with the driving device 70 and the movable plate 77. Are drawn and stretched outward. When the extension of the fourth stage lift 40-4 is completed, the lift 40 is stably supported while the lift auxiliary wheel 45 at the end of the fourth stage lift 40-4 reaches the bottom surface.

When the extension of the lift 40 is completed as described above, as shown in FIG. 7, the first to fourth stage upper gears 72-1 to 72-4 are replaced with the first to fourth stage lower gears 75-1 to 75. -4). Therefore, when the first to fourth stage upper gears 72-1 to 72-4 are rotated by the upper gear rotation motor 73, the first to fourth stage lower gears 75-1 to 75-4 are rotated. The drive unit 70 and the movable plate 77 move along the first to fourth stage lifts 40-1 to 40-4.

That is, when the driving device 70 and the movable plate 77 are in the fourth stage lift 40-4 position, the fourth stage lower gear 75-4 lifts the fourth stage lift 40-4. Since it is engaged with the gear 41, it moves along this 4th stage lift 40-4, and in the 3rd stage lift 40-3 position, the 3rd stage lower gear 75-3 is the 3rd stage lift 40. As shown in FIG. It meshes with the lift gear 41 of -3) and moves along the 3rd stage lift 40-3. The movement of the driving device 70 and the movable plate 77 in the second stage lift 40-2 and the first stage lift 40-1 is also performed in the same manner.

Therefore, the cleaning brush guard 50 mounted on the movable plate 77 moves along the first to fourth stage lifts 40 by the movement of the movable plate 77 to perform cleaning.

When the cleaning brush guard 50 reciprocates along the lift 40 by moving the movable plate 77, the washing water is supplied from the washing water tank 20 to the spray nozzle (not shown), and the spray nozzle (not shown). The washing water is sprayed to the wall surface or the cleaning brush 60 through the tunnel. At the same time, the cleaning brush 60 is rotated to scrape and clean the foreign matter scraped on the wall surface of the tunnel. At this time, since the cleaning brush guard 50 blocks the lower part of the cleaning brush 60, water does not splash out when the cleaning brush 60 is rotated, and thus, the cleaned wall surface is recontaminated or the work of another worker is performed. You will not be disturbed.

On the other hand, while cleaning the tunnel wall while the cleaning brush guard 50 moves along the lift 40, when the obstacle detecting sensor 52 detects the structure installed on the tunnel wall, the lifting motor 56 Is operated to rotate the pinion gear 57, and accordingly, the rack gear 55 installed on the lifting shaft 54 of the cleaning sole guard 50 descends by a predetermined distance, thereby cleaning the cleaning brush guard 50 and the cleaning brush. 60 performs cleaning without bumping into the tunnel structure. When the cleaning brush guard 50 passes through the tunnel structure, the lifting motor 56 operates in reverse, and the cleaning brush guard 50 rises to its original position, and the cleaning brush 60 comes into contact with the tunnel wall surface.

When the cleaning is completed, the drive unit 70 operates in the reverse order as when the lifts 40 are extended, folding the lifts 40, and moving the lifts 40 to the first and second hydraulic cylinders 33 and 34. To return to the initial position to facilitate the movement of the tunnel sweeper.

On the other hand, in the above-described embodiment, the drive unit for stretching the lift 40 and moving the cleaning brush guard 50 along the lift 40 is configured to be integrated into one, otherwise the device for stretching the lift 40 and In addition, the device for moving the cleaning brush guard 50 along the lift 40 may be configured independently.

As described above, according to the present invention, first, since the lift is unfolded in multiple stages according to the curved shape of the tunnel, and the cleaning brush moves along the lift, the cleaning brush is uniformly in contact with almost all parts of the tunnel, and thus the operator No additional work is required and the cleaning performance is greatly improved.

Second, since the height of the cleaning brush is adjusted by detecting the structure of the obstacle detection sensor tunnel wall when the cleaning brush moves, there is an advantage that the cleaning can be performed even without removing the structure of the tunnel wall.

Third, when the cleaning brush rotates, water splashing out of the cleaning brush is not splashed to the outside by the cleaning brush guard, thereby preventing recontamination of the tunnel wall and preventing other workers from working.

Fourth, the tunnel cleaning vehicle of the present invention can clean the entire inside of the tunnel when the cleaning brush passes through the tunnel since the cleaning brush performs cleaning while reciprocating from one end of the tunnel to the other end. Therefore, there is an advantage that can reduce the traffic control time due to cleaning.

Claims (5)

A lift pedestal rotatably installed on a horizontal axis of the vehicle; A plurality of arc-shaped lifts which are supported on the lift support and are elastically installed in multiple stages; A cleaning brush guard installed to move along the lift and configured to open at an upper surface thereof; A drive device configured to expand and contract the arc lifts and to move the cleaning brush guard along the lift; A cleaning brush installed to rotate inside the cleaning brush guard to scrape foreign substances from the wall; A washing liquid tank mounted on the vehicle and storing washing liquid; And a cleaning liquid spray nozzle installed on the cleaning brush guard and supplying the cleaning liquid from the cleaning liquid tank to spray to the wall surface of the tunnel or the cleaning brush. The tunnel cleaning vehicle according to claim 1, further comprising an obstacle detecting sensor installed at the cleaning brush guard to detect a structure attached to the wall of the tunnel. According to claim 1, wherein the lift support is installed on the lift base rotatably installed about the vertical axis in the vehicle; The lift is a tunnel cleaning vehicle, characterized in that installed in the radial position by the hydraulic cylinder on the lift support. According to claim 1, wherein the drive device, the movable sole plate is fixedly installed and installed to be movable along each of the lift, lift gears formed in the circumferential direction on each of the lift, and the movable Two splines configured to rotate in the axial direction with respect to each other but not in the circumferential direction with respect to each other, and a plurality of splines installed at the outer ends of the two splines in the same number of stages as the lift A plurality of upper gears, lower shafts provided at both ends of the movable plate, and a plurality of gears engaged with the lift gears of the lift of each stage through through holes formed in the movable plate independently rotatably installed at the lower shafts. Lower gears, an upper gear rotating motor for rotating the splines, and moving the splines axially to And an upper gear moving unit for selectively engaging the subgear gears with the lower gears, and a lower gear locking unit for individually fixing or releasing the respective lower gears to perform the operation of extending the lifts. Tunnel sweeper. 5. The tunnel cleaning vehicle according to claim 4, wherein the cleaning brush guard is installed to be movable up and down with respect to the movable plate.

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