JPH08302616A - Control device for road surface machining vehicle - Google Patents

Abstract

PURPOSE: To stop and restart drive wheels, a road surface machine, belt conveyor, and sprinkler through simple operations at the time of temporary interruption. CONSTITUTION: An electromagnetic relay for temporary interruption 83 turns on a temporary interrupt switch 28 to break power supply circuits 76, 78 for a belt conveyor and a power supply circuit 79 for a sprinkling nozzle 19 and also turns it off to generate the communication while a controller 71 turns on the switch 28 to put in a neutral position a solenoid valve for travelling 41 and a solenoid valve for machining 54 for control of the capacities of a hydraulic pump for travelling and a hydraulic pump for machining and also turns it off to put them in the supply position. The drive wheels, road surface machine, belt conveyor, and splinkler are stopped or restarted by turning on and off the switch 28.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for driving and stopping a running body of a road surface cutting vehicle, a road surface cutting machine, a belt conveyor, etc., which is used for road repair work and the like.

[0002]

2. Description of the Related Art As a road surface cutting vehicle, for example, a road surface cutting machine having a number of cutting blades mounted on the surface of a drum rotated by a drive source is attached to a vehicle body equipped with a traveling body so that the vehicle can be moved up and down. Attach a belt conveyor to convey waste materials,
A traveling lever that drives and stops the traveling body on the vehicle body, a first operation lever that rotates and stops the road surface cutting machine, a second operation lever that raises and lowers the road surface cutting machine, and a belt conveyor that is driven and stopped. A third operation lever is provided to operate the traveling lever to drive the traveling body, and the first and second operation levers are operated to descend while rotating the road surface cutting machine to press the road surface to move the road surface. It is known that cutting is performed and a third operating lever is operated to drive a belt conveyor to load cutting waste material on a bed of a dump truck.

[0003]

While cutting the road surface by such a road surface cutting vehicle, the vehicle body may be stopped and the road surface cutting machine may be stopped to suspend the road surface cutting temporarily. For example, cutting waste material that has been cut on the road surface with a road surface cutting machine is loaded on a dump truck loading platform with a belt conveyor, and when the cutting waste material is full on the dump truck loading platform, as described above, the vehicle body, the road surface cutting machine, and the belt conveyor. To stop the road surface cutting work, and when the full dump truck and the new dump truck are replaced, operate the first operation lever to rotate the road surface cutting machine and operate the third operation lever. The belt conveyor is driven, the traveling lever is operated and the traveling body is driven to travel the vehicle body, and road surface cutting work is performed.

As described above, when the road surface cutting operation is temporarily stopped, the traveling lever and the first and third operation levers are operated, which makes the operation very troublesome. In particular, if the road surface cutting machine stops before the vehicle stops, a large shock is applied to the vehicle body, so the road surface cutting machine is stopped after the vehicle stops, which makes the operation very troublesome.

Further, when the road surface is cut by a road surface cutting machine, dust is scattered around, so that water is sprayed on the cutting portion by a water spray nozzle, and it is necessary to stop this water spray nozzle at the time of temporary interruption. Since it is necessary to operate the fourth operation lever for controlling watering, the above-mentioned operation for temporarily suspending the operation is very troublesome.

Therefore, an object of the present invention is to provide a control device for a road surface cutting vehicle which can solve the above-mentioned problems.

[0007]

A first invention is a vehicle body 10.
In a road surface cutting vehicle in which the travel object, the road surface cutting machine 13, the belt conveyor 16, and the water spray nozzle 19 are mounted, a travel object operation member that outputs a travel object drive signal and a stop signal, and a road surface cutting machine drive signal and a stop signal are output. A road surface cutting machine operating member, a belt conveyor operating member for outputting a belt conveyor drive signal and a stop signal, a watering operation member for outputting a watering signal and a stop signal, and a temporary interruption operating member for outputting a temporary interruption signal, and First control means for individually driving / stopping the traveling body, the road surface cutting machine 13, and the belt conveyor 16 by the signal from each operation member, and watering and stopping by the water spray nozzle 19, and a temporary interruption signal of the temporary interruption operation member. After stopping the traveling body, the road surface cutting machine 13 is stopped or set to the set low speed rotation, and when the temporary interruption signal disappears, the road surface cutting machine 13 is driven. A control device for road cutting vehicle having a second control means for driving the traveling member after. A second aspect of the present invention is a road surface cutting vehicle in which a vehicle, a road surface cutting machine 13, a belt conveyor 16 and a water spray nozzle 19 are attached to a vehicle body 10, a vehicle body operation member for outputting a vehicle body drive signal and a stop signal, and a road surface cutting machine. Road surface cutting machine operating member that outputs a machine driving signal and a stop signal, a belt conveyor operating member that outputs a belt conveyor driving signal and a stop signal, a sprinkling operating member that outputs a sprinkling signal and a stop signal, and the traveling body operating member Of the traveling body and the road surface cutting machine 13 according to the signals from the respective operation members, and the suspension operation signal that outputs the suspension signal according to the stop signal of FIG. The first control means for individually driving / stopping the belt conveyor 16 and sprinkling and stopping the water from the sprinkling nozzle 19 and the temporary interruption signal of the temporary interruption operation member After cutting the traveling body, the road surface cutting machine 13 is stopped or set to a low speed rotation, and when the temporary interruption signal disappears, the road surface cutting machine 13 is driven and then the traveling body is driven. It is a control device of a vehicle.
A third invention is a control device for a road surface cutting vehicle, wherein the second control means in the first and second inventions stops and drives the belt conveyor 16. A fourth aspect of the present invention is a control device for a road surface cutting vehicle, wherein the second control means in the first and second aspects of the present invention stops the watering of the watering nozzle 19 and starts watering. A fifth aspect of the present invention is a control device for a road surface cutting vehicle, wherein the second control means in the first and second aspects of the invention stops and drives the belt conveyor 16 and also stops and starts watering of the water spray nozzles 19. Is.

[0008]

[Operation] According to the first and second aspects of the present invention, since the traveling body and the road surface cutting machine can be stopped and driven by operating the temporary suspension operation member, the temporary suspension operation becomes simple and the traveling body stops. After that, the road surface cutting machine 13 is stopped or set to a low speed rotation, and the traveling body is driven after the road surface cutting machine 13 is driven, so that no shock occurs when the vehicle is stopped or when the vehicle starts. According to the third invention, the belt conveyor 16 is stopped,
It can be driven and the suspending operation becomes easier. According to the fourth aspect of the present invention, the sprinkling can be stopped and the driving can be started, so that the temporary interruption operation becomes simpler. According to the fifth aspect of the invention, the belt conveyor 16 can be stopped and driven, and water sprinkling can be stopped and driving can be started, so that the temporary interruption operation is further simplified.

[0009]

【Example】

(Overall structure of road surface cutting vehicle) As shown in FIG.
Driving wheels 11 to be a traveling body at the rear of 0, and steering wheels 12 at the front
Is provided, and the road surface cutting machine 13
Is provided to be movable up and down by a link 14 and a lifting cylinder 15, and a belt conveyor 16 is attached to the front of the vehicle body 10.

The road surface cutting machine 13 is a housing 17 in which a drum 18 having a large number of cutting blades is rotatably provided. The housing 17 has a link 14 and a lifting cylinder 1.
The water spray nozzle 19 is attached to the housing 17, and the operating member 21 is attached to the front position of the driver's seat 20 of the vehicle body 10.

As shown in FIG. 2, the operating member 21 is a handle 22, a traveling body operating member that outputs a traveling body drive signal and a stop signal, for example, a traveling lever 23, an elevating lever 24,
Road surface cutting machine operating member that outputs a road surface cutting machine drive signal and stop signal, for example, road surface cutting machine switch 25, belt conveyor operating member that outputs a belt conveyor drive signal and stop signal, for example, belt conveyor switch 26, sprinkling signal, sprinkling stop Each of the switches may be a lever, including a watering operation member that outputs a signal, for example, a watering switch 27, a temporary interruption operation member that is provided on the left and right and that outputs a temporary interruption signal, for example, a temporary interruption switch 28.

(Drive Structure of Each Member) As shown in FIG.
The traveling hydraulic pump 32 and the auxiliary pump 33 are driven by the engine 30 via the first power take-off mechanism 31, and the traveling hydraulic pump 32 has first and second ports 32a, 32.
b is the first and second main circuits 34 and 35, and is the traveling hydraulic motor 3
6 is connected to the first and second ports 36a and 36b in a closed circuit,
The traveling hydraulic motor 36 rotationally drives the drive wheels 11.

The traveling hydraulic pump 32 discharges pressure oil from the first port 32a when the swash plate 37 is tilted to one side with the neutral position as a boundary, and the second port 32b when tilted in the other direction.
It is a reversible type that discharges more pressure oil, and its swash plate 37
The displacement amount is changed to change the displacement amount (capacity) of the variable displacement type, and the tilt direction and the tilt angle of the swash plate 37 are controlled by the servo cylinder 38.

The discharge pressure of the auxiliary hydraulic pump 33 is maintained at a set pressure by a relief valve 39, and the discharge pressure oil is supplied to the first and second main circuits 34, 35 by a pair of check valves 40, thereby closing the closed circuit. Is designed to compensate for the lack of flow in
The hydraulic fluid discharged from the auxiliary hydraulic pump 33 is supplied to the servo cylinder 38 by the traveling electromagnetic switching valve 41, and serves as a capacity control means for controlling the displacement from zero to the maximum by the traveling electromagnetic switching valve 41 and the servo cylinder 38. .

The electromagnetic switching valve 41 for traveling is held at a neutral position a by a spring force, and when the first solenoid 42 is energized, it is in the first position b, and when the second solenoid 43 is energized, it is in the second position c. At the neutral position a, the first and second chambers (not shown) of the servo cylinder 38 are connected to the tank, and the swash plate 37 is brought to the neutral position (zero discharge amount) by a spring (not shown). At the first position b. The hydraulic oil is supplied to the first chamber of the servo cylinder 38, the second chamber is connected to the tank, the swash plate 37 is tilted in one direction, and the traveling hydraulic pump 32 is moved to the first chamber.
When the pressure oil is discharged to the port 32a, the pressure oil is supplied to the second chamber of the servo cylinder 38 at the second position c, and the first chamber is connected to the tank to tilt the swash plate 37 in the other direction. Then, the traveling hydraulic pump 32 is brought into a state of discharging pressure oil to the second port 32b.

The traveling electromagnetic switching valve 41 has a feedback function, and when it reaches the first position b and the second position c, the servo cylinder 38 has a flow rate proportional to the energization amount of the first and second solenoids 42 and 43. The first and second chambers are supplied to control the rotational speed of the drive wheel 11 (the traveling speed of the vehicle body) in proportion to the energization amount of the first and second solenoids 42 and 43.

As shown in FIG. 3, the cutting hydraulic pump 45 is driven by the engine 30 via the second power take-off mechanism 44.
And the auxiliary pump 46 are driven, and the cutting hydraulic pump 4 is driven.
The first and second ports 45a and 45b of No. 5 are closed circuit connected to the first and second ports 49a and 49b of the hydraulic motor 49 for cutting by the first and second main circuits 47 and 48, respectively. The drum 18 is rotationally driven by 49.

The cutting hydraulic pump 45 discharges pressure oil from the first port 45a when the swash plate 50 is tilted to one side with the neutral position as a boundary, and the second port 45b when tilted in the other direction.
It is a reversible type that discharges more pressure oil, and its swash plate 50
The variable displacement type increases or decreases the discharge amount (capacity) per one rotation by changing the tilt angle of the swash plate 50. The tilt direction and tilt angle of the swash plate 50 are controlled by the servo cylinder 51.

The discharge pressure of the auxiliary hydraulic pump 46 is maintained at a set pressure by a relief valve 52, and the discharge pressure oil is supplied to the first and second main circuits 47 and 48 by a pair of check valves 53, and the closed circuit. Is designed to compensate for the lack of flow in
The pressure oil discharged from the auxiliary hydraulic pump 46 is supplied to the servo cylinder 51 by the electromagnetic switching valve 54 for cutting.

The electromagnetic switching valve 54 for cutting is held at a neutral position a by a spring force, and when the first solenoid 55 is energized, it is in the first position b, and when the second solenoid 56 is energized, it is in the second position c. At the neutral position a, the first and second chambers (not shown) of the servo cylinder 51 are communicated with the tank to bring the swash plate 50 to the neutral position (zero discharge amount) by a spring (not shown), and at the first position b. Pressure oil is supplied to the first chamber of the servo cylinder 51, the second chamber is connected to the tank, and the swash plate 50 is tilted in one direction to move the cutting hydraulic pump 45 to the first chamber.
When the pressure oil is discharged to the port 45a, the pressure oil is supplied to the second chamber of the servo cylinder 51 at the second position c, and the first chamber is connected to the tank to tilt the swash plate 50 in the other direction. Then, the cutting hydraulic pump 45 is brought into a state of discharging pressure oil to the second port 32b.

The electromagnetic switching valve 54 for cutting has a feedback function, and when it reaches the first position b and the second position c, a flow rate proportional to the energization amount of the first and second solenoids 55 and 56 is supplied to the servo cylinder 51. The rotation speed of the drum 18 (the rotation speed of the road surface cutting machine)
Is controlled in proportion to the energization amount of the first and second solenoids 55, 56.

The traveling electromagnetic switching valve 41 and the cutting electromagnetic switching valve 54 have one solenoid whose energizing direction is (+),
(-) On the contrary, the first position b and the second position c may be switched, and since the drum 18 of the road surface cutting machine 13 is rotated only in one direction, the cutting hydraulic pump 45 is only connected to the first port 45a. Pressure oil may be discharged, and the electromagnetic switching valve 54 for cutting may be switched between the neutral position a and the first or second position b, c.

The engine 30 drives the belt conveyor hydraulic motor 58 via the third power take-off mechanism 57, and the pressure oil discharged from the belt conveyor hydraulic motor 58 is transferred to the belt conveyor electromagnetic switching valve 59. Port 60a and second port 6 of the hydraulic motor 60 for vehicle
0b, the belt conveyor electromagnetic switching valve 59 is always held in the neutral position a, and when the first solenoid 61 is energized, the first position b and the second solenoid 62 are supplied. When it is energized, the second position c is reached.

The engine 30 drives the lifting cylinder hydraulic motor 64 via the fourth power take-off mechanism 63, and the hydraulic oil discharged from the lifting cylinder hydraulic motor 64 passes through the lifting cylinder electromagnetic switching valve 65. 15
Is supplied to one of the extension chamber 15a and the contraction chamber 15b to expand and contract, and the lift cylinder electromagnetic switching valve 65 is always held at the neutral position a, and when the first solenoid 66 is energized, the first position b When the second solenoid 67 is energized, the second position c is reached.

(Control Circuit) As shown in FIG. 4, the traveling lever 2
3 is operated to a forward drive position B and a reverse drive position C with the neutral position A as a boundary, and the operation amount is a detector 70 such as a potentiometer.
Is input to the controller 71, and the controller 71 causes the traveling electromagnetic switching valve 41 to receive the first and second signals.
A current value proportional to the operation amount is applied to the solenoids 42 and 43.

The elevating lever 24 is operated to the ascending position D and the descending position E with the neutral position A as a boundary, and the respective positions are detected by the detector 73 and input to the controller 71, whereby the controller 71 switches the electromagnetic switching for elevating. The first and second solenoids 66, 67 of the valve 65 are energized.

ON and OF of the road surface cutting machine switch 25
The F signal is input to the controller 71, which controls the energization of the first solenoid 55 of the electromagnetic switching valve 54 for cutting.

The belt conveyor switch 26 comprises a start switch 26a and a forward / reverse switch 26b. The start switch 26 is connected to an input terminal 77a of a forward / reverse electromagnetic relay 77 by a power supply circuit 76, and its first and second output terminals 77b, 77b are connected. 7
7c is connected to the first and second solenoids 61 and 62 of the belt conveyor electromagnetic switching valve 59.

A power supply circuit 78 for the forward / reverse switch 26b.
Is connected to the coil 77d of the forward / reverse electromagnetic relay 77,
When turned on, the contact piece 77e is connected from the first output terminal 77b to the second output terminal 77c.

The power supply circuit 79 of the water spray switch 27 is connected to the coil 80a of the water spray electromagnetic relay 80, and when turned on, the contact piece 80b is connected to the output terminal 80c to energize the electric motor 81 for water spray and to spray the water spray nozzle. Water from 19 on.

When one of the left and right temporary interruption switches 28, 28 is operated, the power supply circuit 82 becomes conductive, and the power supply circuit 82 is connected to each of the power supply circuits 76, 79.
Coil 8 of the electromagnetic relay 83 for temporary interruption provided in each
3a, and also to the controller 71.

The electromagnetic relay 83 for temporary interruption is the coil 8
When a current flows through 3a, the contact piece 83b is switched to shut off each power supply circuit 76, 79.

(Explanation of operation) The traveling lever 23 is moved to the neutral position A.
When operated toward the forward drive position B, the controller 71 causes the traveling electromagnetic switching valve 4 to output a current value proportional to the operation stroke.
Immediately energize the first solenoid 42 of No. 1 to immediately bring it to the first position b, supply a flow rate proportional to the energization amount to the first chamber of the servo cylinder 38 to tilt the swash plate 37, and the hydraulic pump 32 for traveling. Is proportional to the operation stroke of the travel lever 23, the drive wheels 11 are driven, and the travel speed is proportional to the operation stroke of the operation lever 23.

In the above-mentioned state, the traveling lever 23 is moved to the neutral position A.
Then, the energization amount to the first solenoid 42 immediately becomes zero, the electromagnetic switching valve 41 for traveling immediately becomes the neutral position a, and the pressure oil in the first and second chambers of the servo cylinder 38 flows out to the tank. The swash plate 37 is in the neutral position, the displacement of the traveling hydraulic motor 32 is zero, and the drive wheels 11 are stopped.

As described above, when the traveling lever 23 is operated to the neutral position A and the forward position B, the drive wheels 11 immediately stop,
When the vehicle is driven, the traveling speed of the vehicle suddenly changes to a predetermined speed and the vehicle suddenly stops.

The same applies when the traveling lever 23 is operated toward the reverse position C.

When the elevating lever 24 is set to the raised position D, the controller 71 energizes the second solenoid 67 of the elevating electromagnetic switching valve 65 to the second position c, and the elevating cylinder 1
Pressure oil is supplied to the compression chamber 15b of No. 5 to perform the compression operation, and the road surface cutting machine 13 is raised.

When the raising / lowering lever 24 is set to the lowered position E, the controller 71 energizes the first solenoid 66 of the raising / lowering electromagnetic switching valve 65 to the first position b, and supplies the pressure oil to the extension chamber 15a of the raising / lowering cylinder 15. And the road surface cutting machine 13 is lowered.

When the road surface cutting machine switch 25 is turned on, the controller 71 energizes the first solenoid 55 of the electromagnetic switching valve 54 to set it to the first position b, and the hydraulic motor 4 for cutting is used.
The pressure oil is supplied to 9 to rotate normally, the drum 18 rotates normally, and the cutting machine 13 is rotated on the road surface.

When the road surface cutting machine switch 25 is turned off, the first solenoid 55 is de-energized and the electromagnetic switching valve 54 for cutting is set to the neutral position a and the hydraulic motor 49 for cutting is provided.
To stop the rotation of the drum 18 to stop the road surface cutting machine 13
To stop the rotation.

When the start switch 26a is turned on, the first solenoid 61 of the belt conveyor electromagnetic switching valve 59 is energized to the first position b, and the belt conveyor hydraulic motor 6 is turned on.
0 rotates in the normal direction, and the belt conveyor 16 drives in the normal direction.

The start switch 26a and the forward / reverse switch 2
When 6b is turned on, the contact piece 67c of the forward / reverse electromagnetic relay 67
Is switched to energize the second solenoid 62 of the belt conveyor electromagnetic switching valve 59 to move to the second position c, so that the belt conveyor hydraulic motor 60 is rotated in the reverse direction.
6 is driven in reverse.

When the watering switch 27 is turned on, the electric motor 71 for watering is energized and water is sprayed from the watering nozzle 19.

In each of the above operations, the operator operates the lever and the switch.

(Temporary interruption operation of road surface cutting) By operating as described above, the drive wheels 11 are driven, the road surface cutting machine 13 is rotated, the belt conveyor 16 is driven, and water is sprayed from the water spray nozzle 19 to cut the road surface. In this state, one of the left and right temporary stop switches 28 is operated.

As a result, the power supply circuit 82 is turned on to output the temporary interruption signal R ₁ to the controller 71, the coil 83a of each temporary interruption electromagnetic relay 83 is energized and the contact piece 83b is turned off to turn off the power supply circuit 76, Since the first solenoid 61 of the electromagnetic switching valve 59 for the belt conveyor is not energized and the neutral position a is reached, the belt conveyor 1 is cut off.
6 stops, the electric motor 71 for watering stops, and watering stops.

When one of the temporary interruption switches 28 is operated in the above-mentioned state, the power supply circuit 82 is cut off, the belt conveyor 16 is driven, watering is started, and the controller 7
The temporary interruption signal R ₁ is not input to ₁ . When the temporary interruption signal R ₁ is input to the controller 71, the current output from the controller 71 is sequentially reduced with the lapse of time, and when the predetermined time has elapsed, the output current is set to zero and the temporary interruption signal R ₁ is not input. The current is sequentially output with the passage of time, and when the predetermined time has passed, the current value previously output is used.

[0048] This rotational speed of the drive wheels 11 (travel speed) is made successively slower suspended signal R ₁ is input stops after a predetermined time, the drive wheel 11 suspended signal R ₁ is not input The rotation speed (traveling speed) gradually increases and reaches an initial value after a predetermined time.

The controller 71 controls the temporary interruption signal R ₁
When the predetermined time elapses after the input of, the output current to the first solenoid 55 of the electromagnetic switching valve 54 for cutting is set to zero, the rotation of the road surface cutting machine 13 is stopped, and the current is stopped when the temporary interruption signal R ₁ is not input. Output and rotate the road surface cutting machine 13. Note that the low speed rotation may be set without stopping the road surface cutting machine 13.

In FIG. 4, a redundant switch 85 is provided in the power supply circuit 82, and the redundant switch 85 is normally turned on.
When it becomes N and is turned off, the energization of the coil 83a of the electromagnetic relay 83 for temporary interruption is stopped regardless of the temporary interruption switch 28, and the belt conveyor 16 and the electric motor 81 for sprinkling can be driven when the temporary interruption switch 28 malfunctions. I am doing it.

As described above, the road surface cutting machine 13 is stopped, re-rotated, the belt conveyor 16 is stopped, re-driven, watering is stopped and started in conjunction with the stop and re-driving of the drive wheels 11. Will be easier.

(Second Embodiment) As shown in FIG. 5, a temporary interruption switch 28 is attached to the traveling lever 23, and when the temporary interruption switch 28 is turned on, a temporary interruption signal R ₁ is input to the controller 61 and the controller 71 causes the controller 71 to operate. The coil 83a of the temporary interruption electromagnetic relay 83 is energized, and when it is turned off, the energization is stopped. When the temporary stop switch 28 is turned on and the operating lever 23 is set to the neutral position A, the temporary stop signal R ₁ is input to the controller 61,
When the forward movement position B is set again, the temporary interruption signal R ₁ may not be input.

The drum 18 of the road surface cutting machine 13 may be driven by an electric motor, in which case the controller 71 may supply and control the electric current to the electric motor.

As shown in FIG. 6, a signal from the belt conveyor switch 26 and a signal from the water spray switch 27 are input to the controller 71, and the controller 71 causes the first and second solenoids 61, 62 of the belt conveyor electromagnetic switching valve 59 to be supplied.
Energization control of the electric motor 81 for watering is performed, and a temporary interruption signal R ₁
The controller 71 may stop energization when is input.

[0055]

According to the first and second aspects of the present invention, since the traveling body and the road surface cutting machine can be stopped and driven by operating the temporary interruption operating member, the temporary interruption operation becomes simple and the traveling body After the road surface cutting machine 13 is stopped, the road cutting machine 13 is stopped or set at a low speed, and the traveling body is driven after the road surface cutting machine 13 is driven, so that no shock occurs when the vehicle is stopped or when the vehicle starts.

According to the third invention, the belt conveyor 16
Can be stopped and driven, and the temporary interruption operation becomes easier.

According to the fourth aspect of the invention, the sprinkling can be stopped and the driving can be started, so that the temporary interruption operation becomes simpler.

According to the fifth invention, the belt conveyor 16
Can be stopped and driven, and water sprinkling can be stopped and driving can be started, making the temporary suspension operation even easier.

[Brief description of drawings]

FIG. 1 is a front view of a road surface cutting vehicle showing an embodiment of the present invention.

FIG. 2 is a plan view of an operation member portion.

FIG. 3 is a drive circuit diagram.

FIG. 4 is a control circuit diagram.

FIG. 5 is a control circuit diagram of the second embodiment.

FIG. 6 is a control circuit diagram of a third embodiment.

[Explanation of symbols]

 10 ... Vehicle body 11 ... Drive wheel 13 ... Road surface cutting machine 15 ... Elevating cylinder 16 ... Belt conveyor 18 ... Drum 19 ... Sprinkling nozzle 23 ... Traveling lever 24 ... Elevating lever 25 ... Road surface cutting machine switch 26 ... Belt conveyor switch 27 ... Sprinkling switch 28 ... Temporary interruption switch 30 ... Engine 32 ... Traveling hydraulic pump 36 ... Traveling hydraulic motor 37 ... Swash plate 38 ... Servo cylinder 41 ... Traveling electromagnetic switching valve 45 ... Cutting hydraulic pump 49 ... Cutting hydraulic motor 50 ... Oblique Plate 51 ... Servo cylinder 54 ... Cutting electromagnetic switching valve 58 ... Belt conveyor hydraulic pump 59 ... Belt conveyor electromagnetic switching valve 60 ... Belt conveyor hydraulic motor 64 ... Lifting hydraulic pump 65 ... Lifting electromagnetic switching valve 71 ... Controller 76 ... Power supply circuit 77 ... Forward / reverse electromagnetic relay 78 ... Power supply circuit 9: Power supply circuit 80 ... watering electromagnetic relay 81 ... watering electric motor 82 ... power supply circuit 83 ... suspended electromagnetic relay 85 ... redundant switch

Claims (5)

[Claims] 1. A road surface cutting vehicle in which a vehicle, a road surface cutting machine 13, a belt conveyor 16, and a water spray nozzle 19 are mounted on a vehicle body 10. A travel object operating member for outputting a travel object drive signal and a stop signal, and a road surface cutting machine. Road surface cutting machine operation member that outputs drive signal and stop signal, belt conveyor operation member that outputs belt conveyor drive signal and stop signal, water spray operation member that outputs sprinkling signal and stop signal, and temporary suspension signal output The temporarily interrupting operation member and the traveling body and the road surface cutting machine 1 according to signals from the operation members.
3. First control means for individually driving / stopping the belt conveyor 16 and sprinkling water from the sprinkling nozzle 19 and stopping, and stopping the road surface cutting machine 13 after stopping the traveling body by the temporary suspension signal of the temporary suspension operation member. Alternatively, a control device for a road surface cutting vehicle provided with a second control means for driving the road surface cutting machine 13 after driving the road surface cutting machine 13 when the set low speed rotation is eliminated. 2. A road surface cutting vehicle in which a vehicle body, a road surface cutting machine 13, a belt conveyor 16, and a water spray nozzle 19 are mounted on a vehicle body, a travel object operating member for outputting a travel object drive signal and a stop signal, and a road surface cutting machine. A road surface cutting machine operating member that outputs a drive signal and a stop signal, a belt conveyor operating member that outputs a belt conveyor drive signal and a stop signal, a sprinkling operation member that outputs a sprinkling signal and a stop signal, and the traveling body operating member A temporary interruption signal is output according to a stop signal and a temporary interruption signal is stopped according to a drive signal for the traveling body operating member; and a traveling body and a road surface cutting machine 1 based on signals from the respective operating members.
3. First control means for individually driving / stopping the belt conveyor 16 and sprinkling water from the sprinkling nozzle 19 and stopping, and stopping the road surface cutting machine 13 after stopping the traveling body by the temporary suspension signal of the temporary suspension operation member. Alternatively, a control device for a road surface cutting vehicle provided with a second control means for driving the road surface cutting machine 13 after driving the road surface cutting machine 13 when the set low speed rotation is eliminated. 3. The belt conveyor 1 according to the second control means.
The control device for a road surface cutting vehicle according to claim 1 or 2, wherein 6 is stopped and driven. 4. The control device for a road surface cutting vehicle according to claim 1, wherein the second control means stops watering of the watering nozzle 19 and starts watering. 5. The belt conveyor 1 according to the second control means.
The control device for a road surface cutting vehicle according to claim 1 or 2, wherein the water spray nozzle 19 is stopped and driven, and the water spray nozzle 19 is stopped and started.