KR200324748Y1 - Dust cart of tunnel - Google Patents

Abstract

The present invention relates to a tunnel cleaning car that automatically cleans the tunnel wall using a rotating brush mounted on the vehicle. In particular, the cleaning brush is automatically transported in a variable manner during the cleaning operation so that it always maintains a constant distance from the wall surface such as a shatterproof plate. It prevents damage caused by the impact of the structure on the wall, and the boom with the rotating brush is stretched and refracted at various angles for easy operation, and the position of the rotating brush can be changed to either left or right according to the driving direction of the vehicle. It is about a tunnel sweeper.

The present invention is installed on the upper part of the sub-frame mounted in the loading box and the guide body is installed at both sides with a guide beam at a predetermined interval, the sliding transport platform for selectively horizontally moving along the transport path of the guide beam, and the sliding transport table A sliding cylinder for providing a transfer force, a reinforcing case installed on an upper portion of the sliding feeder, and having a rotation support plate installed at an upper end thereof, a rotating shaft rotatably inserted into a revolving support center in the center of the reinforcing case and the sliding feeder; It is made by having a rotary cylinder connected between the rotating support plate and the rotating shaft to impart rotational force to the rotating shaft, and a multi-stage boom installed freely in the column attached to the rotating shaft freely and flexibly with a rotating brush installed at the tip. .

Description

Dust cart of tunnel

The present invention relates to a tunnel cleaning car that automatically cleans the tunnel wall using a rotating brush mounted on the vehicle. In particular, the cleaning brush is automatically transported in a variable manner during the cleaning operation so that it always maintains a constant distance from the wall surface such as a shatterproof plate. It prevents damage caused by the impact of the structure on the wall, and the boom with the rotating brush is stretched and refracted at various angles for easy operation, and the position of the rotating brush can be changed to either left or right according to the driving direction of the vehicle. It is about a tunnel sweeper.

In general, as a method of periodically cleaning a tunnel, a soundproof wall, and a guide rail, a primitive method of cleaning with a brush depending on manpower, and an improved method to automatically clean by using rotation and frictional force of a rotating brush The pre-registration design, Utility Model Registration No. 220695, Tunnel Cleaning Car, was proposed.

The pre-registration design allows the cleaning work to be carried out while the work vehicle proceeds in the same direction as the traveling vehicle that proceeds when cleaning the tunnel of two or more lanes by three sets of automatic rotating brushes mounted on the left, right and upper portions of the vehicle. It was a useful design that could provide a sense of stability and shorten the working time by cleaning the tunnel in one round trip.

However, the design of the pre-registration is somewhat complicated by the installation of rotating brushes on the left and right sides of the vehicle in order to perform the cleaning work while proceeding in the same direction as the traveling vehicle, despite the above advantages. Was.

In addition, since the boom for adjusting the position of the rotating brush is composed of one stage, it is possible to adjust the up and down position, but since the expansion and refraction are not made smoothly, the vehicle must be moved toward the wall to move the rotating brush to the wall. This very uncomfortable, the position of the rotating brush can not be adjusted freely smooth cleaning work was not possible.

In addition, when the vehicle approaches the wall during the cleaning operation, a structure such as a shatterproof plate collides with the wall, causing damage. In order to prevent the damage caused by the collision of the structure, there is a vehicle clearance maintenance sensor that maintains a certain distance between the wall surface and the vehicle provided in `` Washing device of tunnel and soundproof wall cleaning equipment ''. to be.

However, due to the sensor method, frequent malfunctions are caused by various foreign materials, and thus damage to the structure is inevitable, and since the sensor is exposed to external force such as hydraulic pressure and air resistance, the sensor is easily broken and durability is deteriorated. .

The present invention is to solve the above problems, by installing a rotary brush on the tip of the multi-stage boom that is stretched and refracted to adjust the position of the rotary brush freely, selectively depending on the traveling direction of the general vehicle The main purpose of the design is to horizontally rotate the boom so that it can be positioned on either side of the left or right side, and automatically rotate the rotating brush so that the wall and the rotating brush can maintain a constant distance at all times.

The present invention for achieving the desired purpose is provided with a guide main body installed on the upper part of the sub-frame to be mounted in the loading box and the guide beams are installed at regular intervals on both sides, and a sliding feeder for selectively horizontally moving along the conveying path of the guide beams; And a sliding cylinder for applying a conveying force to the sliding carriage, a reinforcing case installed on the upper side of the sliding carriage, and a revolving support plate installed at an upper end thereof, and rotatably inserted into a revolving support center in the center of the reinforcing case and the sliding carriage. A multi-stage boom installed between the rotating shaft, the rotating support plate and the rotating shaft to impart rotational force to the rotating shaft, and freely and flexibly installed on the column attached to the upper rotating shaft, with a rotating brush installed at the tip. It is made by providing.

1 is a side view of a tunnel cleaning vehicle to which the present invention is applied

Figure 2 is a front sectional view of the installation state of the present guide body and the slide feeder

Figure 3 is a plan view of the operating state of the subject innovation rotary cylinder

Figure 4 is a side cross-sectional view of the transport state of the present invention sliding feeder

5 is an enlarged cross-sectional view of the transfer state of the present invention sliding feeder

6 is a front view of the working state of the tunnel cleaning car of the present invention

7 is a hydraulic flow chart of the present invention sliding cylinder

[Explanation of symbols on the main parts of the drawings]

3: subframe 10: guide body

11: guide beam 20: sliding feeder

21: roller mounting plate 22: sliding roller

30: sliding cylinder 32: first relief valve

33: second relief valve 40: reinforcement case

50: rotating shaft 53: column

60: rotary cylinder 70: multistage boom

71: rotating brush

Referring to the configuration for effectively achieving the object of the present invention in detail as follows.

The construction of the present invention is a subframe (3) is selectively mounted on the top of the loading box (2) of the truck (1), the water tank and the cleaning tank (4) for supplying water and cleaning agent on one side of the upper part of the subframe (4) ) Is installed and the guide body 10 is mounted to the front of the water tank and the cleaning tank (4).

The guide body 10 is a pair of guide beams 11 are installed to be spaced apart by a predetermined distance in the shape of a rectangular body and the connecting frame 12 is connected to both ends of the guide beam 11 is configured integrally.

The inner side of the guide body 10 is provided with a sliding conveying table 20 for selectively sliding conveying along the conveying path 13 formed on the inner side of the guide beam (11).

The sliding carriage 20 has roller mounting plates 21 integrally attached to lower ends of both sides, and sliding rollers 22 are attached to lower ends of both sides of the roller mounting plates 21, and the roller mounting plates 21 have a plurality of roller mounting plates 21. While connected to the reinforcement frame 23, the sliding roller 22 is selectively sliding conveyed along the conveying path 13 formed inside the guide beam (11).

The sliding roller 22 has a bottom portion formed in a flat surface 24 so as to have excellent grounding force when transported along the transport path 13 as shown in FIG.

The sliding cylinder 30 which imparts a conveying force to the sliding carriage 20 has a cylinder bracket 31 formed on one side of the guide body 10 and a cylinder bracket 31 attached to the bottom of one side of the sliding carriage 20. When the vehicle is connected to the wall, the vehicle automatically contracts and expands according to the reaction force (F1) applied to the rotating brush (71) when approaching the wall of the tunnel, thereby constantly applying a constant pressure to the rotating brush (71).

That is, as shown in FIGS. 6 to 7, when the vehicle approaches the wall of the tunnel, the pressure P1 is increased by the reaction force F1 applied in the direction of the sliding cylinder 30, and the elevated pressure P1 is the first pressure. At the same time the hydraulic pressure supply by the relief valve 32 is interrupted and the hydraulic pressure by ΔP increased from the setting pressure P2 of the first relief valve 32 is discharged to the hydraulic tank 34 through the second relief valve 33. do.

In addition, when the reaction force F1 = 0, the hydraulic pressure is automatically supplied to the piston 36 of the sliding cylinder 30 through the first relief valve 32 by the operation of the variable pump 35 so that the rotary brush 71 is operated. It is restored to its original position and always maintains a constant distance from the wall.

A reinforcement case 40 is installed at the upper center of the sliding feeder 20. Reinforcement case 40 is a pair of reinforcement plate 41 is attached to both sides at a predetermined interval and the rotary support plate 42 is attached to the top.

In the center of the reinforcement case 40 and the sliding transfer table 20 is installed so that the rotary support cylinder 51 penetrates, and the rotary support cylinder 51 is installed to be rotatably inserted into the rotary support shaft ( The lower end of the 50) is fitted with a snap ring 52 so that the rotation shaft 50 is not separated.

The upper part of the rotary support plate 42 is provided with a pair of rotary cylinder 60 for selectively rotating the rotation shaft 50 in either of the left and right directions, the rotary cylinder 60 is both sides of the rotary support plate 42 It is installed between the cylinder bracket 61 and the cylinder bracket 61 attached to the upper and lower outer periphery of the rotation shaft 50 at a predetermined interval.

The column 53 is attached to the upper portion of the rotation shaft 50, the multi-stage boom 70 is installed and freely stretched and refracted to the column 53, the rotation of the multi-stage boom 70 to rotate 360 degrees freely Brush 71 is installed.

The multistage boom 70 has a first boom 72 rotatably installed in the column 53, and a second boom 73 is rotatably installed at the tip of the first boom 72. While the brush mount 74 is rotatably installed at the tip of the second boom 73, the column 53, the first boom 72, the first boom 72, the second boom 73, and the second boom are rotated. The boom cylinder 75 is installed between the 73 and the brush holder 74 to selectively adjust the expansion and refraction states of the first boom 72 and the second boom 73 and the brush holder 74. By adjusting the position of the rotating brush 71 freely it can be made more smooth cleaning work.

Here, the configuration of the rotary brush 71 rotatably installed at the front end of the multistage boom 70 is a generalized configuration, so a detailed description of the configuration will be omitted.

Referring to the tunnel cleaning operation according to the present invention made of such a configuration as follows.

First, as shown in FIG. 3, when the rotary cylinder 60 is driven, the multi-stage boom 70 and the rotary brush 71 may be positioned at either the left or the right side as the rotation shaft 50 rotates in one direction. .

Therefore, unlike the prior art in which a pair of booms and rotary brushes 71 are installed on both sides for the purpose of cleaning both sides of the tunnel while traveling in the same direction as other driving vehicles, the position of the rotary brush 71 installed alone It is possible to drastically reduce the production cost by achieving the purpose of.

When the rotary brush 71 is located on either side, the boom cylinder 75 is operated to expand or retract the multistage boom 70 so that the rotary brush 71 is in close contact with the wall surface of the tunnel as shown in FIG.

The tunnel is cleaned by rotating the rotary brush 71 while driving the vehicle in this state. At this time, when the vehicle approaches the wall when the vehicle is driven, a reaction force F1 is generated and the sliding cylinder 30 is automatically contracted as the pressure P1 increases in the sliding cylinder 30 direction.

As the sliding cylinder 30 is contracted, the transport table 20 slides in the opposite direction to the wall surface through the transport path 13 so that the wall surface and the rotating brush 71 are always maintained at a constant interval such as a scattering prevention plate. It does not collide with the wall and be damaged, and unlike the sensor method, no malfunction occurs.

On the other hand, when the reaction force F1 = 0, the variable pump 35 is automatically operated so that the hydraulic pressure is automatically supplied in the direction of the piston 36 of the sliding cylinder 30 through the first relief valve 32 so that the rotary brush 71 By restoring to its original position, the cleaning brush can be made more smoothly without maintaining the state in close contact with the wall without rotating the rotating brush 71.

The present invention is equipped with a rotary brush at the tip of the multi-stage boom that can be freely stretched and refracted to freely adjust the position of the rotary brush to clean the tunnel more smoothly. It can be selectively positioned horizontally and placed on either side, which can dramatically reduce the manufacturing cost of installing a plurality of booms and rotating brushes. The rotating brush is automatically variable and conveyed at regular intervals from the wall. Even if the vehicle is close to the wall of the tunnel, it is effective to prevent a structure such as a shatterproof plate from colliding with the wall and being damaged.

Claims (4)

A rectangular guide body 10 installed on the subframe 3 mounted to the loading box 2 of the truck 1 and provided with a pair of guide beams 11 spaced apart by a predetermined distance; A sliding feeder 20 configured to selectively slide the sliding rollers 22 installed on the roller mounting plates 21 at both lower ends of the guide beams 11 along the transfer paths 13 of the guide beams 11; A sliding cylinder (30) connected and installed between the guide body (10) and the cylinder bracket (31) attached to the sliding carriage (20) to impart a transfer force to the sliding carriage (20); A reinforcement case 40 installed above the sliding feeder 20 and having a pair of reinforcement plates 41 attached to both sides thereof, and a rotation support plate 42 integrally attached to an upper end thereof; A rotation shaft 50 rotatably inserted into a rotation support cylinder 51 penetrated in the center of the reinforcement case 40 and the sliding feed table 20; A pair of rotary cylinders 60 connected between both sides of the rotary support plate 42 and cylinder brackets 61 attached to upper and lower outer peripheries of the rotating shaft 50 and selectively rotating the rotating shaft 50; Tunnel cleaning vehicle, characterized in that consisting of a multi-stage boom (70) installed in the column (53) attached to the top of the rotating shaft (50) freely stretched and refracted and rotatably installed at the tip. The method according to claim 1, Sliding cylinder 30 is the pressure P1 is increased in the direction of the sliding cylinder 30 by the reaction force (F1) generated when the vehicle approaches the wall surface, the elevated pressure (P1) is the first relief valve 32 The hydraulic pressure by ΔP, which is higher than the setting pressure P2 of the first relief valve 32, is discharged to the hydraulic tank 34 through the second relief valve 33 while the hydraulic pressure is blocked by the hydraulic pressure supply. When F1 = 0, the hydraulic pressure is automatically supplied to the piston 36 of the sliding cylinder 30 through the first relief valve 32 by the operation of the variable pump 35 to restore the rotary brush 71 to its original position. Tunnel sweeper, characterized in that to maintain a constant distance from the wall at all times. The method according to claim 1, Sliding roller 22 is a tunnel cleaning vehicle, characterized in that the bottom portion is processed into a flat surface 24 so as to have a good grip when conveying along the conveying path (13). The method according to claim 1, In the multistage boom 70, a first boom 72 is rotatably installed in the column 53, and a second boom 73 is rotatably installed at the front end of the first boom 72, and the second boom is rotatable. (73) While the brush mount 74 is rotatably installed at the tip, the column 53, the first boom 72, the first boom 72, the second boom 73, and the second boom ( 73) and the brush mount 74, the position of the rotating brush 71 is adjusted freely by adjusting the expansion and refraction state of the first boom 72, the second boom 73, the brush mount 74 Tunnel sweeper, characterized in that the boom cylinder (75) is installed.