JPH06294108A - Mobile cutter for road - Google Patents

Abstract

PURPOSE:To clean the inside of joint grooves and remove accumulated wastes on a road, by reversely rotating a cutter against the rotary direction of the driving wheel of a mobile cutter for road and blowing compressed air into the joint grooves formed by the cutter. CONSTITUTION:The cutter 13 of a mobile cutter 1 for road, forming joint grooves on a road surface, is reversely rotated against the rotary direction of the driving wheel 24 for the engine 23 drive. Road waste resulting from formation of joint grooves by use of the cutter 13 is blown away toward the forwarding direction of the mobile cutter 1 without blowing away the waste to the direction of the joint grooves and the space covered with a shield rubber plate 29 sucked by a vacuum pump 33 through the suction opening 30 and the connection pipe 31 to conduct the waste slurry into a slurry/air separator 34. Further, compressed air is blown into the joint grooves through a connection pipe 32 from a air compressor 37 to keep the grooves clean.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a road cutter vehicle for cutting a pavement portion of a pavement.

[0002]

2. Description of the Related Art In a conventional road cutter car, a disc-shaped cutter having a super hard material such as industrial diamond mounted on the outer periphery thereof is rotationally driven to form a cut groove on the surface portion of the road by the cutter. . In this case, in order to form a cut groove on the road surface portion, the cutter is rotationally driven in the same direction as the rotation direction of the drive wheels of the road cutter vehicle, that is, in the direction in which the pavement is dug down by the cutter, so that the road has a width of approximately A groove is formed on the surface. Further, when the cut groove is formed on the road surface portion, water is discharged to the side surface of the cutter to cool the cutter.

[0003]

The width of the cut groove formed on the road surface by the road cutter wheel is about the thickness of the cutter and is extremely thin. However, according to the above-described conventional road cutter vehicle, the road slag generated when the cut groove is formed scatters after the road cutter vehicle. The scattered road slag is sucked by a vacuum pump or the like. However, the road slag is muddy because of the cutter cooling water,
The suction of the vacuum pump was only possible to suck the road slag on the road surface, not the road slag that entered the cut groove.
For this reason, there is a problem that a mud-like road slag enters the cut groove formed after the road cutter car, and if left unattended, the cut groove is filled with the road slag. As a result, there is a problem that an operator must be arranged to remove the road slag that has entered the cut groove according to the formation of the cut groove by the road cutter car. The problem is that it is extremely difficult due to its narrow size. This difficulty increases as the depth of the formed cut groove increases.

An object of the present invention is to provide a road cutter vehicle in which a road slag caused by the generation of a cut does not enter the cut groove formed on the road.

[0005]

SUMMARY OF THE INVENTION A road cutter vehicle of the present invention is a road cutter vehicle in which a cut groove is formed on a road surface by a cutter that is rotationally driven. Drive means for driving
It is characterized by comprising a compressor and a blowing tube whose tip faces a cut groove formed by a cutter and which blows compressed air from the compressor to the cut groove.

[0006]

In the road cutter vehicle of the present invention, the cutter is rotationally driven in the direction opposite to the rotational direction of the drive wheels of the road cutter vehicle. Therefore, when the cut groove is formed, the road slag generated by the formation of the cut groove is scattered in the traveling direction of the road cutter vehicle. Therefore, it will not scatter in the direction of the cut groove of the road, the road slag will not enter the formed cut groove, and compressed air will be blown to the formed cut groove following formation to form it on the road. The cutter cooling water that has entered the cut groove is blown off and the inside of the cut groove formed on the road is cleaned.

[0007]

EXAMPLES The present invention will be described below with reference to examples. Figure 1
FIG. 2 is a partial cross-sectional plan view showing a main part of a road cutter vehicle according to an embodiment of the present invention, and FIG. 2 is a partial cross-sectional side view showing a main part of a road cutter vehicle according to an embodiment of the present invention.

In the road cutter vehicle 1 of this embodiment, a horizontally opposed four-cylinder engine 3 is mounted on a machine base 2. Engine 3
A gear 5 is wedged on the output shaft 4. The gear 5 is meshed with a gear 6 wedged on a shaft 7 mounted on the engine 3, and a pulley 8 wedged on the shaft 7 and a pulley 11 wedged on a cutter shaft 10 mounted on the machine base 2 are belted. The rotation of the output shaft 4 is transmitted to the cutter shaft 10 by being connected by 12.

A cutter 13 is detachably fixed to a position on the right side of the cutter shaft 10 in FIG. 1 and outside the housing 9, and the cutter 1 is rotated by driving the cutter 1.
3 is rotationally driven in the direction opposite to the direction of rotation of the drive wheels of the road cutter vehicle 1, that is, in the direction in which the cutter 13 cuts the road surface from the bottom to the road surface.

In order to drive the cutter 13 to rotate in the above-mentioned direction, it is only necessary to newly provide the gear 6 for substantially reversing the output shaft rotation direction of the conventional road cutter vehicle engine. Here, the gear 6 is provided so that the rotation direction of the cutter 13 is opposite to that in the case of the conventional road cutter vehicle, because it is desirable that the road width occupied during the work is narrow and the horizontally opposed engine 3 is used. However, it is because there is no horizontally opposed engine with output shafts on both sides.

The mounting position of the engine 3 is provided at a position rotated by 180 degrees from the position shown in FIG. 1, and the position opposite to the position shown in FIG. 1, that is, the cutter shaft 1 in FIG.
The cutter 13 is mounted on the left side of 0 so that the rotation direction of the cutter 13 is not the same as the wheel rotation direction when the road cutter wheel 1 is moved backward. This is because the output of the engine 3 cannot be sufficiently transmitted to the cutter 13 due to slipping, and further, in this case, the cutter 13 is located at the opposite position to that of the conventional road cutter vehicle. This is because the workability of a worker who can operate the road cutter vehicle is deteriorated.

A pulley 14 is wedged on the output shaft 4 of the engine 3. The pulley 14 and a pulley 17 wedged on the rotor shaft of a generator 16 provided on the machine base 2 and the machine shaft 2 are provided on the machine base 2. Pulley 19 wedged to the drive shaft of the transmission 18
The rotation of the output shaft 4 drives the generator 16 and the continuously variable transmission 18 via the belt 15 wound around. The continuously variable transmission 18 performs continuously variable transmission, reduces the rotational speed of the continuously variable output shaft by the worm 181 and the worm gear 182, and drives the driven shaft 20 orthogonal to the output shaft. It is configured to be driven by the output shaft. A bevel gear 21 is wedged on the driven shaft 20, and a bevel gear 25 wedged on a drive shaft 23 mounted on the machine base 2 and having drive wheels 24 mounted on both ends is driven by the bevel gear 21. , Drive the road cutter vehicle 1 forward.

A protective cover 26 that covers a part of the cutter 13 is fixed to the side plate of the housing 9. As shown in FIG. 3, a seal rubber plate 29 is attached to the bottom plate 27 of the protective cover 26 so that the tip thereof comes into contact with the road so as to surround the opening 28 through which the cutter 13 is inserted. The suction port 3 of the road slag that occurs when a gap is formed between
0 is formed. In addition, the mud /
A connection pipe 31 for connecting to the water separator 36 penetrates through the bottom plate 27, and the connection pipe 31 and the suction port 30 are connected by a pipe (not shown). Furthermore, a connecting pipe 32 for connecting to a compressor 37, which will be described later, is provided so as to penetrate the bottom plate 27. Here, the tip of the connecting pipe 32 is formed thin, and the tip of the connecting pipe 32 is provided at a position facing the cut groove formed in the road.

On the other hand, a vacuum pump 33 for sucking muddy water from the road surface, a muddy water for separating muddy water and air from the sucked muddy water /
A muddy water / air separator 36 comprising an air separation tank 34 and a discharge pump 35 for discharging the separated muddy water, and a compressor 37 are provided on the machine base 2. The muddy water / air separator 36 is connected to a connecting pipe 31. Connect by connection pipe,
The discharge port of the compressor 37 is connected to the connection pipe 32 and a connection pipe, respectively. The drive motor of the vacuum pump 33, the drive motor of the discharge pump 35, and the drive motor of the compressor are driven by electric power from the generator 17, respectively.

In FIG. 1, reference numeral 40 indicates a connecting pipe connected to the discharge port of the discharge pump 35 for discharging mud, reference numeral 41 indicates a direction indicating rod fixed to the housing 9, and a road cutter vehicle. In order to specify the driving direction of No. 1, it is supported by the operator and a direction instruction operation is performed. Reference numeral 42 is a rotary arm that is vertically driven by a hydraulic power source (not shown), and driven wheels 43 are provided at both ends of a drive shaft 44 supported by the rotary arm 42. The depth of the cut groove formed on the road is set based on

The operation of the road cutter vehicle 1 of the present embodiment constructed as described above will be described.

When the engine 3 is driven, rotation of the output shaft 4 of the engine 3 causes rotation of the generator 16 and the continuously variable transmission 18.
2 is driven, the drive shaft 23 is rotated, and the drive wheel 24 is moved to the position shown in FIG.
The road cutter car 1 is driven to rotate in the direction of arrow B shown in FIG.
Is driven in the direction of arrow A. At the same time, the rotation of the output shaft 4 of the engine 3 causes the pulley 8 to move through the gears 5 and 6.
Is driven, the pulley 11 is driven via the belt 12, and the cutter 13 is driven in the direction of arrow C shown in FIG. 2, that is, in the direction opposite to the rotation direction of the drive wheel 24.

The vacuum pump 33, the discharge pump 35 and the compressor 3 are driven by the power generated by driving the generator 16.
7 is driven. On the other hand, the rotation of the cutter 13 causes a gap to be formed on the road. The depth of the formed cut groove is based on the rotation angle of the rotation arm 42. Further, cooling water is discharged to the cutter 13 to cool the surface of the cutter 13.

Since the rotation direction of the cutter 13 is opposite to the rotation direction of the drive wheels 24, road slag generated by the formation of the cut groove by the cutter 13 does not scatter in the direction of the cut groove formed on the road. , The road cutter vehicle 1 is scattered in the traveling direction, and the shield rubber plate 29 is used to shield the shield rubber plate 29.
The scattering of road slag outside is blocked. On the other hand, the area surrounded by the shield rubber plate 29 is sucked by the vacuum pump 33 through the suction port 30 and the connection pipe 31 which are communicated with each other, and the muddy road slag is sucked by the muddy water / air separation tank 34. It

However, even if the suction force of the vacuum pump 33 is the same as that of the conventional one, the road slag only scatters in the traveling direction of the road cutter vehicle 1 and therefore does not enter the cut groove formed on the road. Compressed air from the compressor 37 is blown to the formed cut groove via the connecting pipe 32, and even if the cooling water of the cutter 13 enters the cut groove, it is blown off and the inside of the cut groove formed on the road is It looks like it has been cleaned. Further, even if a part of the muddy road slag flows into the cut groove formed on the road, it will not be blown away by the compressed air from the compressor 37 and will not be accumulated in the cut groove formed on the road. .

Further, the rotating direction of the cutter 13 is the drive wheel 2.
Since the road slag is prevented from accumulating in the cut groove formed on the road in the direction opposite to the rotation direction of 4, the cutter 13 removes the road slag accumulated in the cut groove when the cut groove is formed on the road by the cutter 13. There is no need for cutting, and the wear of the tip of the substrate of the cutter 13 where the ultra-hard material such as industrial diamond of the cutter 13 is stuck is small, and it can be used until the wear of the ultra-hard material is finished. , Cutter 13
Lifespan is extended.

In the above-described embodiment, the case where a horizontally opposed type engine is used as the engine 3 is illustrated, but it is not necessary to limit to the horizontally opposed type engine, and other types such as an in-line 4-cylinder engine may be used. A bevel gear is wedged to the output shaft of the engine using an engine, and two bevel gears are meshed with the bevel gear so that the cutter 13 is rotationally driven in the direction opposite to the rotational direction of the drive wheels of the road cutter vehicle. You can also

[0023]

As described above, according to the road cutter vehicle of the present invention, the cutter is rotationally driven in the direction opposite to the rotation direction of the drive wheels of the road cutter vehicle, and compressed air is compressed in the cut groove formed on the road by the cutter. Because I tried to spray
In the cut groove formed on the road, the road slag generated during the formation of the cut groove will not be scattered in the direction of the cut groove formed on the road, and the road slag will accumulate in the cut groove formed on the road. In addition, because the compressed air is blown to the cut grooves formed on the road, the cutter cooling water that has entered the cut grooves formed on the road is blown off by the air pressure, and the inside of the cut grooves formed on the road is cleaned. There is an effect that it becomes a cleaned state, and the work of removing the road slag accumulated in the cut groove subsequent to the formation of the cut groove is unnecessary.

Furthermore, there is no effect of cutting the road slag that has entered the cut groove in which the cutter is formed, so that there is an effect that the life of the cutter is extended. Further, there is an effect that it is not larger than a conventional road cutter vehicle.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional plan view showing a main part of a road cutter vehicle according to an embodiment of the present invention.

FIG. 2 is a partial sectional side view showing a main part of a road cutter vehicle according to an embodiment of the present invention.

FIG. 3 is a side view and a bottom view of a protective cover according to an embodiment of the present invention.

[Explanation of symbols]

 1 Road Cutter Vehicle 3 Engine 5 Gear 6 Gears for Reverse Direction of Rotation 8, 11, 14 and 19 Pulley 10 Cutter Shaft 12 and 15 Belt 13 Cutter 18 Continuously Variable Transmission 24 Drive Wheel 26 Protective Cover 32 Connection Pipe 37 Compressor

Claims (1)

[Claims] 1. A road cutter vehicle in which a cut groove is formed on a road surface by a cutter that is rotationally driven, the drive means driving the road cutter vehicle in a direction opposite to a rotation direction of driving wheels, a compressor, and a cutter. A road cutter vehicle, comprising: a blow pipe having a tip facing the formed cut groove and blowing compressed air from the compressor to the cut groove.