JP3674696B2 - Mechanical cleaning method for road surfaces, etc. by cleaning vehicles - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
This invention mainly cleans the roadbed in the track surface on which the track vehicle travels, and the side wall surface and ceiling surface in the tunnel of roads and subways, etc. at the same time, safely and efficiently with a pressure water jet, etc. It belongs to the technical field of mechanical cleaning methods such as roadbed surfaces by vehicles.
[0002]
[Prior art]
Conventionally, the roadbed in the track surface on which the track vehicle travels is a metal that is generated by rubbing the wheel and brake shoe or the wheel and rail when the brake is applied, such as oil and fat dropped during the track vehicle travel. It is a source of concern for those concerned that black stains due to powder oxidation, etc., and the appearance inside station premises, etc. are troublesome, but it is difficult to find suitable cleaning and washing methods and means.
[0003]
A similar problem is seen in cases where the walls of roads and subway tunnels burn and become dirty, but no special measures can be taken.
[0004]
In roads and subway tunnels, vehicles frequently pass and cannot secure a safe work space and sufficient work time necessary for cleaning.
[0005]
Conventionally, as a technique for cleaning the roadbed in the track surface on which the track vehicle travels, for example, the invention of “Roadbed Cleaning Device” described in Japanese Patent Application Laid-Open No. 7-127027, or described in Japanese Patent Application Laid-Open No. 8-338012 The invention of the “railway track cleaning machine device” that has been made, etc. is only occasionally seen. Each of them is a type of a cleaning vehicle that travels on a track, and is configured to perform cleaning and cleaning by rotating a cleaning brush or combining the rotation of the brush with jet of cleaning water.
[0006]
In addition, as a means for cleaning and cleaning persistent stains, it is also possible to use water-soluble sodium bicarbonate as a hard fine granular powder, and by spraying this, it is possible to improve the cleaning and cleaning effect by the so-called shot blast effect. No. 6-69668 (Japanese Patent No. 1943329) or Japanese Patent Application Laid-Open No. 8-168729 and the like belongs to publicly known.
[0007]
[Problems to be solved by the present invention]
The above-described conventional cleaning machine mainly has a configuration in which the cleaning brush is rotated to perform cleaning, so that during the cleaning operation, the environment around the workplace can be improved by winding up dust and splashes or jumping pebbles away. make worse. Therefore, it cannot be used in the vicinity of a station where there are many people, and it is not very good for the safety and health of the workers on site. There is also a problem that it cannot be returned to its original state until the post-processing is completed until the dust that has been rolled up completely settles down or the pebbles that have bounced off are returned to the original state. The problem of protracting is also great. In addition, due to the rotation of the brush, it is difficult to use when the roadbed is composed of quarrying with a small particle size. There is also a problem that it can be applied only to concrete roadbeds (concrete direct connection track, slab track).
[0008]
In addition, in the case of a tunnel structure such as a road or a subway, although there is a great need for cleaning a dirty and dirty tunnel inner wall surface, the configuration and function of the above-described conventional cleaning machine is Can not be cleaned.
[0009]
The object of the present invention is a configuration that basically uses a high-pressure water jet without using a rotating brush and the like, and particularly for cleaning persistent dirt on a road bed that has been blackened due to oxidation of oil and fat or metal powder, It is effective for peeling, and afterwards it dissolves in water and does not require post-treatment, and a water-soluble cleaning agent or peeling agent that is safe and non-polluting for the human body is mixed in a high-pressure water jet, so it is efficient with the so-called shot blasting effect. It is to provide a mechanical cleaning method such as a road floor by a cleaning vehicle that cleans cleanly.
[0010]
The next object of the present invention is not only the road surface, but also the cleaning of the inner walls of tunnels on roads and subways, as well as the lower part of tracks (rails) and lower parts of overhead lines, as well as the center groove and side grooves of the road bed. The object is to provide a mechanical cleaning method for a road surface by a cleaning vehicle, which can be cleaned.
[0011]
[Means for Solving the Problems]
As a means for solving the above-mentioned problems of the prior art, a mechanical cleaning method for a road floor or the like by a cleaning vehicle according to the invention of claim 1 is:
In the method of cleaning and cleaning the road floor etc. while running a cleaning vehicle equipped with all the water and cleaning agent or stripping agent and other cleaning materials and cleaning equipment, power equipment etc. necessary for cleaning,
Of the road bed surface cleaning blast nozzle 12 which is divided into a bifurcated shape having a Y-shape downwardly projecting downward from the chassis 3 of the cleaning vehicle and having a difference in radius from the center of rotation . As the water-soluble cleaning agent or stripping agent is used , the particle size is about 200 micrometers, while the downward blast nozzle 22 for cleaning and cleaning the outside of the cleaning width is rotated or reciprocated horizontally. sodium bicarbonate hardness of around 2.5, washed and road floor to inject high pressure water jets is mixed in the vicinity of the blast nozzle by compressed air with a shot blasting effect, be cleaned,
Side wall blast nozzle 31 that is disposed laterally outward along a vertical plane substantially perpendicular to the traveling direction on the same washing vehicle and reciprocates at a certain angle in the vertical direction to spray a high-pressure water jet to clean the tunnel side wall surface. And a blast nozzle for a ceiling surface that is arranged upward along a vertical plane substantially perpendicular to the traveling direction of the washing vehicle and that reciprocates at a certain angle in the left-right direction to spray a high-pressure water jet to clean the tunnel ceiling surface 42, respectively, and cleaning and cleaning the tunnel side wall surface and the ceiling surface in parallel, based on the detection signals of the detection sensors such as the side walls and the detection sensor such as the ceiling mounted on the cleaning vehicle,
Further, the cleaning vehicle has a blast nozzle 50 for cleaning the lower part of the track, an blast nozzle 51 for overhead wire cleaning, and cleaning blast nozzles 52 and 53 for the center groove and side grooves of the road bed. The lower part of the track, the overhead line part, the center groove and the side groove of the road bed are also cleaned and cleaned in parallel .
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a cleaning method of the present invention will be described together with a configuration of a cleaning vehicle that performs the method.
[0017]
1 to 5 show an embodiment in which a cleaning vehicle that performs a mechanical cleaning method for a roadbed surface or the like according to the present invention is configured as a track vehicle that travels on a rail 1 by itself. This washing vehicle has a travel drive means and is configured to travel by itself and proceed with cleaning and cleaning operations, but is pulled to a work site at high speed by a motor car or the like not shown.
[0018]
This cleaning vehicle has a chassis 3 having a track wheel 2 that runs on a rail 1, water and a cleaning agent or a stripper, and other cleaning materials, cleaning equipment, and power equipment necessary for cleaning and cleaning operations. Etc., and it is configured so that the roadbed can be cleaned and cleaned while it is traveling unattended.
[0019]
In FIGS. 3 to 5, a free track wheel 2 ′ is shown on the same axle as the track wheel 2, but this can be applied not only to a narrow track but also to a wide track. It is shown that.
[0020]
On top of the chassis 3 is a water-soluble, in addition to two front and rear water tanks 4 and 4 for storing and mounting a large amount of water, for example, about 17.5 kiloliters for cleaning, with a 2-hour work as a guide. As an example of a cleaning agent or a release agent, a hopper 5 having a particle size of about 200 micrometers and a size of about 200 liters of fine sodium bicarbonate having a Mohs hardness of about 2.5 is installed. In addition, the diesel engine 7 as a power source, the generator 28 and the plunger pump 8 driven by the diesel engine 7, the electric compressor 9 and the like are covered with a dust-proof, waterproof and silent cover case 10. Is installed. The two water tanks 4, 4 arranged before and after the chassis 3 are connected to each other by a plurality of communication pipes 11 so that the water stored in each of them can be used in common.
[0021]
At the front end portion of the chassis 3 of the washing vehicle, two blast nozzles 12 and 12 for washing and cleaning the road floor are arranged side by side so as to protrude downward. The blast nozzle 12 is divided into a bifurcated Y-shape downward so that FIGS. 1 and 6 are easy to understand, and the rotation shaft portion 12 a at the center upper portion extends along the front surface of the control panel 13. The swivel joint mechanism 14 is supported so as to be able to move up and down in the vertical direction.
[0022]
The two blast nozzles 12d and 12d divided into two are different in radius R and L from the rotation center O, and rotate by drawing inner and outer double concentric circles. Accordingly, the high-pressure water jets ejected by the nozzles 12d partially overlap to form a cleaning surface, and are configured to surely realize a strong cleaning and cleaning effect. As an example, the radius R is 650 mm, and L is 500 mm, and the high-pressure water jet is jetted over the common surface with a difference of about 150 mm width.
[0023]
Therefore, if the washing vehicle is operated under the condition that the washing vehicle advances (or moves backward) by 150 mm during one rotation of the two-forked blast nozzle 12, the road surface is washed with a washing width of 1300 mm at the maximum in the running direction of the washing vehicle. The cleaning is surely performed twice before and after. Further, according to the two bifurcated blast nozzles 12 and 12 installed side by side as shown in FIG. 2, the cleaning and cleaning of the roadbed surface can be performed continuously with a maximum cleaning width (horizontal width) of 2600 mm.
[0024]
As an example of operating conditions, the rotational speed of the bifurcated blast nozzle 12 is 10 to 30 rpm, and the traveling speed of the washing vehicle is 100 m / hr (1.67 m / min).
[0025]
The configuration and the principle of operation of the bifurcated blast nozzle 12 that cleans and cleans the roadbed surface are illustrated in FIG.
[0026]
That is, the plunger pump 8 driven by the diesel engine 7 sucks cleaning water from the water tank 4, discharges it with the pressure and flow rate set by the controller 15, and supplies high-pressure water to the water pipe 12b through the swivel joint mechanism section 14. . As an example, the water pressure is about 17 to 20 MPa, and the flow rate is about 40 to 45 liters per minute. On the other hand, the high-pressure air generated by the electric compressor 9 driven by the power generated by the generator 28 is sent out at the pressure and flow rate set by the controller 16 (pressure is 8 to 10 MPa, flow rate is about 80 liters per minute) ), By passing through a distributor 17 provided at the outlet of the hopper 5 containing sodium bicarbonate in the middle, the amount of sodium bicarbonate set by the distributor 17 is sucked and conveyed, and the swivel joint mechanism part 14 to the air hose 12e. Then, sodium bicarbonate is forcibly mixed into the high-pressure water together with the high-pressure air in the mixer 12c provided near the tip nozzle 12d of the water pipe 12b. As a result, by spraying stiff finely divided high-pressure water jet of sodium bicarbonate mingled, washing with a so-called shot blasting effect, Ru Nodea for effective cleaning.
[0027]
With regard to its cleaning ability, it is excellent for removing mud and grease on construction machinery vehicles, cleaning stubborn oil-stained kitchen equipment and kitchen floors, removing paint on concrete walls, removing graffiti, and removing dirt from vehicle engine rooms. It has already been proven to be effective. Therefore, it is apparent that the present invention is effective in cleaning and cleaning the road surface which is blackened by oxidation of oils and fats, metal powders and the like dropped by the track vehicle. In addition, it has been confirmed that a cleaning capacity of 3.6 square meters per minute can be exhibited under the above-mentioned specification conditions.
[0028]
Accordingly, the two blast nozzles 12 and 12 projecting downward from the chassis 3 are operated while the washing vehicle having the above configuration is running, and a high-pressure water jet mixed with a water-soluble cleaning agent or a release agent is injected. it allows clean with a shot blasting effect track bed surface, yet mechanically cleaned with high efficiency, Ru Nodea which can be cleaned.
[0029]
Moreover, the hard fine granular sodium bicarbonate dissolves and disappears with time after use, and the water is weakly alkaline with a pH of about 8.0 to 8.5. It clears the standards, does not require any post-processing, and has no concerns about pollution problems.
[0030]
As an example, the pressure of high-pressure water jets ejected from the two blast nozzles 12 and 12 is 17 to 20 MPa, the total flow rate is 40 to 45 liters / minute, and the consumption of fine particulate sodium bicarbonate used is 0.00 per minute. It is about 5 to 1 kg, and the washing area per minute is 3.6 square meters.
[0031]
The generator 28 driven by the diesel engine 7 has a power generation capacity of about 18 KVA, and the generated power provides drive power for all electric motors mounted on the washing vehicle and power for the control device. For example, as shown in FIG. 1, the track wheel 2 is driven by a traveling motor 20 to cause the washing vehicle to travel by itself.
[0032]
Each of the two blast nozzles 12, 12 is installed such that the swivel joint mechanism 14 can be moved up and down by a jack 21. A sensor that is not specifically illustrated is installed on the road surface so as to detect the presence or absence of an obstacle that hinders the progress and operation state of the two blast nozzles 12 and 12. When the sensor detects an obstacle or the like, the jack 21 is immediately activated, and the two blast nozzles 12 and 12 are rapidly pulled up to avoid the obstacle.
[0033]
Next, as shown in FIGS. 1 and 2, the water is still at a side position slightly behind the two blast nozzles 12 and 12 (FIG. 2 is one side, but may be both sides). A widening blast nozzle 22 is installed for jetting a high-pressure water jet mixed with hard fine granular sodium bicarbonate as a cleaning agent or release agent downward, and simultaneously cleaning and cleaning the outer part of the roadbed surface in parallel. Tei Ru. The blast nozzle 22 for widening is installed so as to be able to reciprocate (turn) in a range of about 90 ° by a swivel joint mechanism portion 23 installed on the side surface of the chassis 3 so as to be moved up and down by a jack 24.
[0034]
The widening blast nozzle 22 shown in the figure is a crank-shaped one-arm type, but the structure principle is the same as that of the blast nozzle 12 of FIG. 6 described above, in which a high-pressure water jet mixed with hard fine sodium bicarbonate is injected. It is a configuration that cleans and cleans the roadbed surface by shot blasting effect. As an example, the widening blast nozzle 22 is manufactured with a turning radius of 500 mm.
[0035]
Therefore, by adding one blast nozzle 22 for widening together with the two blast nozzles 12 and 12, the road surface can be washed and cleaned over a width of about 3100 mm as the washing vehicle advances. Become.
[0036]
Furthermore, as shown in the schematic configuration of FIG. 5, the central portion of the chassis 3 in the washing vehicle, more specifically, the front position of the dustproof and waterproof cover case 10 housing the diesel engine 7, the generator 28, etc. Sidewall blast nozzles 31, 31 are disposed sideways along a vertical plane substantially perpendicular to the traveling direction of the cleaning vehicle and reciprocally rotate up and down at an angle α of about 110 ° to clean the side wall surface 30 a such as the tunnel 30. However, two units are installed on the left and right in a configuration that reciprocates like a wiper of a vehicle through a swivel joint mechanism 32 that protrudes horizontally from a drive unit 34 installed in the cover case 10. Has been.
[0037]
In addition, as shown in FIG. 3, the swivel joint mechanism 41 that protrudes horizontally rearward from the drive unit 40 installed on the chassis 3 also has a rear end position of the chassis 3 in the washing vehicle. A ceiling blast nozzle 42 is installed which is disposed upward along a vertical plane substantially perpendicular to the direction and which reciprocates at an angle β of about 105 ° in the left-right direction to clean the ceiling surface 30b and the like.
[0038]
Accordingly, as the washing vehicle travels forward, the road bed surface is cleaned and cleaned by operating the two side wall blast nozzles 31 and 31 and the ceiling blast nozzle 42 simultaneously with the road bed surface blast nozzle 12. together, even once it washed such as the side 30a and the ceiling surface 30b of the tunnel 30, Ru Nodea which can be cleaned.
[0039]
Each of the side wall blast nozzles 31 and 31 and the ceiling blast nozzle 42 is configured so as to give an effect of cleaning and cleaning basically only with a high-pressure water jet in consideration of the less persistent dirt removal on the inner surface of the tunnel. ing. However, if necessary, cleaning with a shot blasting effect may be performed by mixing the above-described hard fine sodium bicarbonate or the like as a cleaning agent or a release material.
[0040]
The side blast nozzle 31 and the ceiling blast nozzle 42 need to be operated by confirming the presence (presence / absence) and shape of the tunnel 30 and the like in advance. abbreviated but detecting sensor of the side wall 30a such as cleaning vehicles, and the detection sensor to equipment each such ceiling 30b, ing to automatically control the cleaning operation based on a detection signal of each such sensor.
[0041]
In addition to the nozzles described above, the washing vehicle further has a blast nozzle 50 for cleaning the lower part of the track (rail) as shown in FIG. 4, or a blast nozzle 51 for cleaning the lower part of the overhead line as shown in FIG. The cleaning is performed with a configuration including the cleaning blast nozzles 52 and 53 for the central groove 60 and the side groove 61, respectively.
[0042]
Accordingly, by operating each of the blast nozzles 50, 51, 52, and 53 along with the traveling of the washing vehicle, the center groove 60 and the side groove 61 of the road bed, the lower part of the track, the overhead wire, or the road bed are simultaneously arranged in parallel. It washed Te, Ru Nodea which can be cleaned.
[0043]
Each of the blast nozzles 50, 51, 52, 53 basically has a configuration in which only a high-pressure water jet is ejected to obtain cleaning and cleaning effects.
[0044]
In addition, the code | symbol 70 in a figure is the lighting fixture prepared for the illumination of a dark tunnel or night cleaning work.
[0045]
The washing vehicle having the above configuration travels unattended, and each blast nozzle is operated by remote control, so that it is configured and used as effective for the health management of workers, working conditions, and environmental protection.
[0046]
[Effects of the present invention]
According to the mechanical cleaning methods, such as the track bed surface by the cleaning vehicle according to the invention described in claim 1, such as a rotating brush is not used at all, because basically perform cleaning with high pressure water jets, the track bed surface grain size Even if it is composed of small quarrying, etc., the cleaning and cleaning effects can be obtained without difficulty.
[0047]
In particular, persistent dirt on the road floor that has been blackened due to oxidation of oils and fats, metal powder, etc., promotes the effect of washing and peeling, and afterwards it dissolves in water and does not require post-treatment, making it safe and non-polluting for the human body. Since a certain water-soluble cleaning agent or release agent is mixed in a high-pressure water jet and cleaned efficiently and effectively by the so-called shot blasting effect, it can be carried out without deteriorating the workplace environment even in a station premises or the like.
[0048]
Further, according to the method of the present invention, not only the roadbed surface but also the inner wall surface of the tunnel in the road and the subway, the lower part of the track (rail) and the lower part of the overhead line, and the central groove and the side groove of the roadbed are provided in parallel. It can be cleaned and cleaned, and the effectiveness of the mechanical cleaning method by the cleaning vehicle is shown.
[Brief description of the drawings]
FIG. 1 is a side view of a cleaning vehicle that implements a mechanical cleaning method according to the present invention.
FIG. 2 is a plan view of the washing vehicle.
3 is a right side view of FIG. 1 (a rear view of the washing vehicle). FIG.
4 is a left side view of FIG. 1 (a front view of a washing vehicle). FIG.
FIG. 5 is a view taken along the line VV in FIG. 1;
FIG. 6 is an explanatory diagram showing the configuration of a blast nozzle that injects a water-soluble cleaning agent or release agent with a high-pressure water jet.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Rail 3 Chassis 7 Diesel engine 8 Plunger pump 12 Blast nozzle 22 Blast nozzle for road surface washing widening 30 Tunnel 30a Tunnel side surface 30b Tunnel ceiling surface 31 Blast nozzle for side wall 42 Blast nozzle for ceiling 50 Blast nozzle for washing track lower part 51 Overhead line washing Blast nozzle 52 Central groove cleaning blast nozzle 53 Side groove cleaning blast nozzle 60 Central groove 61 Side groove

Claims (1)

Oite water and cleaning agent, or release agent other cleaning materials as cleaning equipment such necessary cleaning, while traveling cleaning vehicle equipped all such power devices such as a track bed surface cleaning, the method of cleaning,
A cleaning blast nozzle for a road floor cleaning that projects downward from the chassis of the cleaning vehicle and has a Y-shape downwardly divided into two branches having a difference in radius from the center of rotation , and the cleaning width of the blast nozzle for cleaning the road floor As the water-soluble cleaning agent or release agent , the particle size is about 200 micrometers and the Mohs hardness is 2. sodium bicarbonate about 5, washed and road floor to inject high pressure water jets is mixed in the vicinity of the blast nozzle by compressed air with a shot blasting effect, be cleaned,
Side wall blast nozzle that is disposed laterally outward along a vertical plane substantially perpendicular to the traveling direction on the same washing vehicle and reciprocates at a certain angle in the vertical direction to spray a high-pressure water jet to clean the tunnel side wall surface, And a blast nozzle for a ceiling surface that is arranged upward along a vertical plane substantially perpendicular to the traveling direction of the washing vehicle and reciprocates at a certain angle in the left-right direction to spray a high-pressure water jet to clean the tunnel ceiling surface. The cleaning operation is performed based on the detection signal of the detection sensor such as the side wall and the detection sensor such as the ceiling mounted on each cleaning vehicle, and the tunnel side wall surface and the ceiling surface are also cleaned and cleaned in parallel.
Furthermore, the cleaning vehicle has a blast nozzle for cleaning the lower part of the track, a blast nozzle for cleaning the overhead line, and a blast nozzle for cleaning the center groove and the side groove of the road bed, along with the traveling of the cleaning vehicle, the outer part of the road bed surface, the lower part of the track, the overhead line part, and the road bed. Cleaning and cleaning the central groove and side groove of the
Respectively and wherein, mechanical cleaning methods, such as the track bed surface by washing the vehicle.

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