JPH0713440B2 - Cleaning device for wall surface in tunnel - Google Patents

Description

TECHNICAL FIELD The present invention relates to a cleaning device for a tunnel inner wall surface.

2. Description of the Related Art Conventionally, in order to clean the inner wall surface of a tunnel, a worker enters inside and sprays a scraper, an air jet, a water jet, or a brush.

However, in the above method, there is a problem in that it is extremely inefficient, requires a long time for cleaning, and requires a large number of workers to avoid it. As a result, there is a problem that uneven cleaning occurs.

Then, the objective of this invention solves the problem by the conventional cleaning method as mentioned above, and provides a cleaning device which can be cleaned efficiently by a small number of workers, and which can perform the cleaning uniformly throughout. That is.

Means for Solving the Problems In order to achieve the above-mentioned object, the present invention provides a horizontal main shaft which is rotated by a first drive means mounted on a self-propelled carriage, and the horizontal main shaft is provided by a second drive means. The center of a rotating turntable is pivotally supported, the base end is pivotally supported by a plurality of support shafts provided on this turntable, and a free end is provided with a support arm that rotates to the free end of this support arm. The rotation shaft of the brush is pivotally supported, transmission wheels are attached to the support shaft of the support arm and the rotation shaft of the rotation brush, and a transmission band is stretched over these transmission wheels, and the end of the horizontal spindle that protrudes outside the turntable. A transmission wheel is attached to this section, and a transmission band is stretched between this transmission vehicle and another transmission wheel attached to the support shaft of the support arm, and an air cylinder for maintaining the posture of the support arm is provided on the rotating disk. In addition, the control that controls the operation according to the shape of the inner wall surface of the tunnel It is characterized by the provision of control means.

Action In the cleaning device of the present invention as described above, the horizontal spindle 3 is rotated by the first drive means 2 while the carriage 1 is traveling in the tunnel, and the turntable 6 is rotated by the second drive means 4 to move the air cylinder. The support arm 8 is held in place by 10 and the rotating brush 9 held at the free end of this support arm 8 is brought into contact with the inner wall surface of the tunnel. The rotation of the horizontal spindle 3 is transmitted to the rotating brush 9,
It is transmitted through the transmission belt 17, the transmission wheels 16 and 12, the transmission belt 14, and the transmission vehicle 13. As a result, the rotating brush 9 revolves around the rotating disk 6 while rotating to clean the inner wall surface of the tunnel. The control means controls the operation of the air cylinder 10 according to the shape of the inner wall surface to displace the support arm 8, that is, the rotating brush 9 supported by the support arm 8, to make the contact pressure on the inner wall surface of the tunnel uniform.

Embodiment In the embodiment shown in the drawings, a total of four traveling wheels 20 are attached to the chassis 19 of the self-propelled carriage 1 in the front, rear, left and right, and a pair of wheels 20 at the rear of the traveling wheels 20 are provided on the chassis 19. It is configured to be rotated by a gear motor 21 for a chain via a chain 22, and a wheel 24 for supporting the center of the ceiling, which is raised and lowered by an air cylinder 23, is provided at the rear portion of the chassis 19.

The first motor 2 is composed of a geared motor and is configured to rotate a main shaft 3. A rotary disc 6 is rotatably supported on the main shaft 3, and a gear 26 is attached to a rear surface of the rotary disc 6. ing. The gear 26 meshes with a gear 27 rotated by the second motor 4 which is a geared motor.

The rotating brush 9 is a wire brush, the transmission wheels 15 and 16 are sprockets, and the transmission belt 17 is a chain.
The members 15 and 17 are arranged one behind the other on the main shaft 3 in the horizontal direction, and the horizontal rotating brush 9 in FIG. 2 is omitted in FIG.

Reference numeral 28 denotes an auxiliary rotating brush for cleaning the lower corner of the tunnel, which is provided in the lower rear part of the chassis 19.

29 is an air tank with a pump that supplies air to the intermediate clevis type air cylinder 10 and receives the exhaust air from this, and the piping 31
And the air distributor 32, and communicates with the air cylinder 10 through a vent hole (not shown) in the main shaft 3, and the pipe 31 is provided with a pressure adjusting solenoid valve 33.

34 is a generator for supplying electric power to the motors 2, 4, 21 and the solenoid valve 33, 36 is its electric control box, and 37 is a wash water tank.

A state in which the inner wall surface of the tunnel is cleaned by the above apparatus will be described with reference to FIGS. 3 and 4 as well.

When bringing this device into the tunnel, air is supplied to and exhausted from the air cylinder 10 through the pipe 31 and the distributor 32 by the operation of the solenoid valve 33 by the control box 36, and as shown in FIG. The support arm 8 is displaced inward about the support shaft 7.

When the device is brought into the tunnel in this way, the air cylinder 23 is operated to support the ceiling of the tunnel with the wheels 24, and thus the carriage 1 is supported by the wheels 20 and 24 at three points. The air cylinder 10 is operated to displace the rotating brush 9 outward so that the rotating brush 9 is brought into contact with the inner wall surface of the tunnel as described later.

Here, the traveling distance and traveling speed of the trolley 1 are set in advance in an electric control box.
It is set in the setting section in 36 and the motor 21 is operated to move the cart 1 forward. At the same time as the operation of this motor 21, the other motors 2, 4
The horizontal spindle 3 is rotated by the motor 2 and the rotary disk 6 is rotated by the motor 4 via the gears 26 and 27.
The rotating brush 9 revolves together with the rotating disk 6, while the main shaft 3 rotates to rotate the transmission wheel 15, and this rotation is transmitted to the support shaft 7 via the transmission belt 17 and the transmission wheel 16.
Further, it is rotated by the transmission through the transmission wheel 12, the transmission belt 14, the transmission wheel 13, and the rotating shaft 11, and the rotating brush 9 as described above is brought into contact with the inner wall surface of the tunnel.

In this case, since the inner wall surface of the tunnel is usually horseshoe-shaped as shown in FIG. 4, in order for the rotating brush 9 to contact the inner wall surface, the centers A, B, C of the rotating brushes 9 are rotated as the rotating disk 6 rotates. , The center O must be moved to the positions of different radii R1 <R2> R3 respectively, so that the rotating brush 9
Needs to be displaced to the position according to its revolution. This is done by operating the solenoid valve 33 by the control box 36 to control the air supply and exhaust to the air cylinder 10 via the distributor 32, and the control circuit for that is stored in the control box 36. . That is, the solenoid valve 33 by this control circuit
When the radius R1 at the position A is increased, the outward protrusion of the operating rod of the air cylinder 10 is reduced to reduce the displacement of the rotary brush 9 from the position shown in FIG. The operating rod of the air cylinder 10 is gradually projected toward the radius 3 at the position C, the operating rod of the air cylinder 10 is retracted toward the radius 3, and then the rod is projected in the opposite direction. It is designed to move on a track that follows the wall. In this way, the inner wall surface of the tunnel is rotated while revolving, and is cleaned by the rotating brush 9 that is constantly in contact with the wall surface. It will be cleaned by the rotating brush 28.

When the inner wall surface of the tunnel cleaned in this way has a residue, a sprinkling hose (not shown) is connected to the washing water tank 37 and the washing water is used for washing.

EFFECTS OF THE INVENTION The present invention is as described above, and is
By the first and second drive means, a plurality of rotary brushes mounted on the rotary disk are revolved while revolving with the rotary disk to continuously clean the inner wall surface of the tunnel, and a support arm for supporting the rotary brush is installed on the rotary disk. The attitude of the self-propelled carriage is self-propelled in the tunnel because the posture of the self-propelled vehicle is maintained by the air cylinder attached to The rotating brush automatically cleans the inner wall surface of the tunnel during that time, and regardless of the shape of the inner wall surface of the tunnel, the rotating brush can be displaced accurately and easily according to it, and an extra worker is required. Therefore, there is an effect that the labor can be saved and the inner wall surfaces can be cleaned satisfactorily and uniformly.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of the present invention, FIG. 2 is a left side view of the same as above, FIG. 3 is an explanatory view showing the arrangement of rotary brushes other than during cleaning, and FIG. 4 is a rotary brush during cleaning. It is explanatory drawing which shows the arrangement condition of. 1 ... Self-propelled trolley, 2 ... 1st motor 3 ... Horizontal spindle, 4 ... 2nd motor 6 ... Rotating plate, 7 ... Support shaft 8 ... Support arm, 9 ... Rotating brush 10 ... Posture holding member, 11 …… Rotary shaft 12,13 …… Transmission wheel, 14 …… Transmission belt 15,16 …… Transmission wheel, 17 …… Transmission belt 19 …… Car chassis, 20 …… Wheels 26, 27 …… Gear , 29 …… Air tank with pump 31 …… Piping, 32 …… Air distributor 33 …… Solenoid valve, 36 …… Electric control box

Claims (1)

[Claims] 1. A horizontal main shaft which is rotated by a first drive means mounted on a self-propelled carriage, and a center of a rotary disk which is rotated by a second drive means is pivotally supported on the horizontal main shaft and is provided on this rotary disk. In addition to pivotally supporting the base end on a plurality of support shafts, the support arm with the free end facing outward is provided, and the rotary shaft of the rotating brush is pivotally supported on the free end of the support arm to rotate with the support shaft of the support arm. The transmission wheels are attached to the rotating shaft of the brush, the transmission belt is stretched over these transmission wheels, and the transmission wheel is attached to the end of the horizontal spindle that protrudes outside the turntable. The transmission belt is stretched to the other transmission wheel attached to, and the air cylinder for holding the posture of the support arm is provided on the rotating disk.
A device for cleaning an inner wall surface of a tunnel, characterized in that a control means for controlling the operation of the self-propelled carriage in accordance with the shape of the inner wall surface of the tunnel is provided.