JPS6085105A - Road surface re-paving apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a road surface resurfacing device for resurfacing damaged asphalt pavement on an asphalt-paved road. The road surface material is made uniform.

This type of road surface resurfacing device drives a road surface heating vehicle to heat the asphalt paved road surface, and then runs the road surface resurfacing device to follow this, thereby forming the asphalt surface by the road surface resurfacing device. Easily loosen paving materials (old company) - 2 Mix the loosened old company with new asphalt paving material (new composite material), or layer the new composite material on country timber and then lay it. By leveling, it is possible to regenerate a road surface whose flatness has been lost due to ruts, weather conditions, etc. to a flat road surface.

By the way, in this type of road surface resurfacing equipment, at least one of the amount of rural wood and the amount of new composite material is adjusted so that the level of the road surface is at an appropriate level when the road surface is regenerated to be flat. It is necessary to adjust the amount of mixed material to a predetermined value. The reason why the amount of resurfacing material is adjusted in this way is that if the amount of resurfacing material is insufficient, the thickness of the paved road surface will decrease and the durability of the paved road will deteriorate. When the amount is too high, the road surface level rises, making it impossible to maintain a predetermined road surface height, and in either case, there is a problem in that accurate resurfacing cannot be performed.

Therefore, the present invention was made by focusing on the problems of the conventional device, and its purpose is to detect the cross-sectional shape of the road surface and calculate the amount of resurfacing material required from the road surface shape. The object of the present invention is to provide a road surface resurfacing device that can solve the problems of the conventional devices by adjusting the amount of resurfacing mixture based on the calculation result.

In order to achieve the above object, the present invention, for example, as in the illustrated embodiment, loosens the old asphalt pavement material forming the road surface by a scraping mechanism 26, and loosens the old asphalt pavement material forming the road surface together with or on top of the new asphalt pavement material. A road surface resurfacing device 1 that resurfaces a road surface by layering and laying new asphalt pavement materials includes a road surface shape detection device 85 that detects the cross-sectional shape of the road surface, and a detection signal of the road surface shape detection device 85. a calculating means 108 for calculating at least one of the intake amount U of the old asphalt paving material and the supply amount S of the new asphalt paving material based on the calculation result of the calculating means 108; The present invention relates to a road surface resurfacing device characterized by comprising a control means 109 for controlling at least one of the new asphalt paving material supply devices 10.

The present invention will be explained below based on the drawings.

FIG. 1 is a schematic diagram showing an embodiment of the present invention.

First, to explain the configuration, the road surface resurfacing device l is:
A front wheel 3 and a rear wheel 4 are attached to the vehicle body 2, and the rear wheel 4 is operated from a driver's cab 5 by a hydraulic drive motor (not shown) driven by a swash plate pump 7 driven by an engine 6.
It runs by being rotationally driven.

A receiving hopper 9 is provided at the front of the vehicle body 2 to receive new company (new asphal) and paving materials from a new company transport vehicle (not shown) such as a dump truck.
The new company discharged from the lower part is conveyed obliquely upward by the first chain conveyor 11 constituting the new composite material supply means 10 and delivered onto the second chain conveyor 12. This second chain conveyor 12 transports the new company to a position corresponding to between a spreading mechanism 80 and a leveling mechanism 81, which will be described later, and drops the new company between them.

As shown in FIG. 2, each chain conveyor 11, 12 has a spreader plate 14 bridged at a predetermined interval between endless chains 13L and 13R arranged in parallel at a required interval in the width direction of the vehicle body 2. The conveyor 11 has a bottom plate 15 that covers the lower part of the upper chain part, and the chain conveyor 12 has a bottom plate 16 that covers the lower part of the lower chain part. Therefore, the chain conveyor 11 conveys the new company by means of the upper chain part and the bottom plate 15, and the chain conveyor 12 conveys the new company by means of the lower chain part and the bottom plate 16. An opening/closing mechanism 17 is disposed on the chain conveyor 12 at a position corresponding to a new composite material receiving lower 7 of a stirring mechanism 27, which will be described later. The opening/closing mechanism 17 includes an opening 18 formed in the bottom plate 16 and extending in the width direction thereof, an opening/closing plate 19 for opening and closing the opening 18, and a fluid pressure cylinder 20 for driving the opening/closing plate 19 to open and close. The opening/closing drive mechanism 23 includes the piston rod 21 and a rotating arm 22 connected to the opening/closing plate 19. When the piston rod 21 of the fluid pressure cylinder 20 is in the contracted state, the piston rod 21 is in the closed position where the opening/closing plate 19 closes the opening 18 of the bottom plate 16.
1 is in the extended state, the opening/closing plates 19 are respectively moved to the open position to open the opening 18. Note that 24 is a discharge chute provided on the lower surface of the bottom plate 16.

Further, between the front wheels 3 and rear wheels 4 of the vehicle body 2, a raking mechanism 26 is disposed at a position in contact with the road surface 25 for raking the asphalt paving material and raking or raking the raked country wood. At the same time, a stirring mechanism 27 is connected to the rear side thereof.

As shown in FIGS. 3 and 4, an example of the loosening mechanism 26 includes sowing comb mechanisms 28L and 28R symmetrically provided on the front side and a loosening mechanism 29 provided parallel to these mechanisms behind the sowing comb mechanisms 28L and 28R. and has. Scraping mechanism 28
In L and 28R, a pair of support brackets 31 and 32 are respectively attached to both ends of a fixed shaft 30 connected at the center, and a pair of guide cylinders 33 and 34 are attached below these as shown in FIG. are fitted in parallel. Sliding shafts 35, 36 are respectively inserted into the guide tubes 33, 34, and both ends of these are connected by connecting plates 37, 38. A scarifier 39 serving as a rotary scraping section is rotatably housed between these connecting plates 37 and 38. This scarifier 39 consists of a rotating shaft 40 rotatably supported between connecting plates 37 and 38, a spiral screw 41 formed on this rotating shaft 40, and a number of protrusions spaced apart from each other at required intervals on the outer periphery of the rotating shaft 40. It is composed of a pin-shaped canter 42 provided therein. A sowing blade 43 extends along the axial direction of the scarifier 39 slightly to the rear of the scarifier 39 between the connecting plates 37 and 38.
are arranged in one piece. In this case, the downward protrusion length of the scraping blade 43 can be adjusted by an adjustment bolt 44.

Furthermore, the loosening mechanisms 28L and 28R are connected to the fixed shaft 3.
A fluid pressure cylinder 45 is disposed along the axis 0, a cylinder tube 46 of which is fixed to the center of the fixed shaft 30, and a piston rod 47 connected to the connecting plate 37 or the guide cylinder 33. Therefore, by extending the piston rod 47, the loosening mechanisms 28L and 28R protrude outward, and conversely, by contracting the piston rod 47, they slide inward, and the outer end positions of the loosening mechanisms 28L and 28R protrude outward.
It becomes approximately equal to the outer end position of 9. In addition, the scraping mechanism 2
8L and 28R, the screws 41 of their scarifiers 39 have opposite helical directions, and each rotating shaft 4
0 is connected via a drive chain 48 to a reversible hydraulic motor 49 as a rotational drive source. Therefore, when the reversible hydraulic motor 49 is rotated in the normal direction, the loosened polymeric material is scraped up in the center, and when the reversible hydraulic motor 49 is rotated in the reverse direction, the loosened polymeric material is scraped out to the outside.

Further, the scraping mechanism 29 is constructed of a housing 50 whose lower end is open.
A scarifier 51 is rotatably supported therein.

This scarifier 51 includes a rotating shaft 52 rotatably disposed within a housing 50 and a screw 5 formed on the rotating shaft 52.
3 and a large number of pin-shaped cutters 54 protruding from the outer periphery at required intervals, and the screw 53 has a helical direction reversed at its center. The rotating shaft 52 is connected via a drive chain 55 to a reversible hydraulic motor 56 as a rotational drive source.
It is configured to collect or scrape out the polymer material that has been scraped off as the roller rotates toward the center. Further, a scraping blade 57 extending along the axial direction of the scarifier 51 is integrally disposed slightly behind the scarifier 51 inside the casing 5o. In this case, the blade 57
The length of the downward protrusion can be adjusted by an adjustment bolt 58.

Each of the sowing mechanisms 28L, 28R, and 29 has a gate-shaped frame when viewed from the side, which is suspended and supported by a common vertical movement mechanism 59 that is rotatably supported on the vehicle body 2 and constituted of, for example, a fluid pressure cylinder. 60 so as to be movable up and down. That is, the vertical shaft 6 disposed on the frame 6o
1.62 to which support arms 63 and 64 are slidably fitted, and an engagement plate portion 65 with the support arm 63 formed at its lower end.
It is slidably engaged with a guide frame 66 fixed to the loosening mechanisms 28L and 28R to support the same, and a support arm 64 is attached to the housing 50 of the loosening mechanism 29. Vertical movement mechanisms 67 and 68 constituted by fluid pressure cylinders are interposed between the frame 60 and the engagement plate portion 65 and between the frame 6° and the housing 50. Therefore, by operating the vertical movement mechanism 59, the scarifiers 39, 51 and the scraping blades 43, 57 of the scraping mechanisms 28L, 28R, and 29 are removed.
is moved between an upper position where the scarifier 39.51 and the drawing blade 43.57 are in contact with the road surface 25. In addition, by operating the vertical movement mechanisms 67°68, the scarifiers 39 of the scraping mechanisms 28L, 28R, and 29
, 51 and the sowing blades 43, 57 are moved between a position where they contact the road surface 25 and a raking position where they bite into the road below. Note that 69 is a rotating arm that guides the vertical movement of the loosening mechanisms 28L and 28R interposed between the fixed shaft 30 and the vehicle body 2.

As shown in FIG. 6, the stirring mechanism 27 includes a housing 7o attached to the lower part of the vehicle body 2, and two mutually parallel rods extending inside the housing 70 along the traveling direction of the vehicle body. It is composed of rotating shafts 71, 72, a plurality of stirring blades 73 attached to these, and a rotational drive mechanism 74 composed of, for example, a hydraulic motor, which rotationally drives the rotating shafts 71, 72. In the casing 70, the old mixture insertion lower 5 is formed on the front plate facing the scraping mechanism 26, and the stirring mixture discharge lower G is formed on the rear plate opposite thereto. A new member receiving lower 7 is formed on the top plate facing the opening/closing mechanism 17. In this case, the blade portion 78 formed at the tip of the stirring blade 73 is inclined at approximately 45 degrees, thereby transporting the old composite material or the mixed composite material of the old composite material and the new composite material rearward while stirring. Drop it onto the road from the ejection lower aro.

The stirred mixture discharged from the stirring mechanism 27 is heated by a heater 79 disposed behind it, and then transferred to the diffusion mechanism 8.
With a value of 0, it is averaged in the width direction of the road surface.

This diffusion mechanism 80 is composed of a screw conveyor 80a rotated +a' in the same direction at the center, and a blade screed 80b disposed behind the screw conveyor 80a. Further averaging is performed with a screed 80b.

After that, a leveling mechanism 81 disposed at the rear end of the vehicle body 2
Spread the mixture evenly. An example of the leveling mechanism 81 includes a screed 83 that vibrates the road surface, which is rotatably attached to the vehicle body 2 by a rotary arm 82, and a chain conveyor 12 disposed in front of the screed 83.
A screw conveyor 84 spreads the new materials conveyed in the width direction of the road surface.

Further, a road surface shape detection device 85 is disposed between the front wheel 3 and the scraping mechanism 26. This road surface shape detection device 85
An example of this is configured as shown in FIG.

That is, it has a machine frame 88 formed in a U-shape from a horizontal rod portion 86 and a vertical rod portion 87 extending downward from both ends thereof, and a guide roller 89 is rotatably attached to the lower end of the vertical rod portion 87. It is pivoted to. One guide roller 89 has
A pulse generator 9 as a rotation detector is attached to the rotation axis.
0 is attached, and the pulse generator 90 outputs a number of pulse signals proportional to the amount of rotation of the guide roller 89, which are counted by a pulse counter 90a.

Further, a guide bar 91 is bridged between the vertical rod portions 87 of the machine frame 88 in parallel with the horizontal rod portion 86.
A carriage 92 is slidably guided and supported in the width direction of the road surface. A road surface distance detector 93 for measuring the distance to the road surface is attached to the carriage 92 at a position facing the road surface. An example of the road surface distance detector 93 is the ultrasonic transmitter 9 which uses ultrasonic waves and measures the time from when the waves are transmitted until when the reflected waves reflected from the road surface are received.
It has a configuration that measures the distance Xi between 4a and 94b and the road surface and outputs distance measurement data.

The carriage 92 is reciprocated in the road surface width direction by rotation of a short shaft 96 rotationally driven by, for example, a servo motor 95, and its movement position is detected by a rotation detector 97 that detects the rotation of the screw shaft 96. Rotation detector 9
An example of 7 includes a rotation detection plate 98 that is integrally fixed to a screw shaft 96 and has a through hole in its outer circumference, and a photointerrupter 99 that has a light emitting element and a light receiving element facing each other with the rotation detection plate 98 in between. This photointerrupter 99 consists of
The amount of movement of the carriage 92 can be detected from the pulse signal for each rotation of the screw shaft 96 and the pinch of the screw shaft 96. Actually, the pulse counter 99a counts a predetermined number of pulse signals from the photointerrupter 99 to detect that the carrier 92 has reached a predetermined position.

Note that 100 is a microswitch that detects the left end of the carriage 92 attached to the vertical rod portion 87 of the machine frame 88.

As shown in FIG. 8, the count signal of the pulse counter 90a, the detection signal of the distance detector 93, the count signal of the pulse counter 99"a, and the microswitch 1.
The switch signal 00 is supplied to the microcomputer 1o1, and the microcomputer 101 also outputs a drive control signal for the servo motor 95, road surface shape data representing calculation results to be described later, a drive signal for the compacting material supply mechanism 10, and the old composite material. A drive signal for the loosening mechanism 26 is output.

The microcomputer 101, as shown in FIG.
Interface circuit 1o2. The vehicle mileage determining means 1o5. shown in FIG. Carriage positioning means 1o6
．． Road surface distance data storage means 107. It is equipped with means 108 for determining the end of carriage movement, means 109 for calculating the amount of composite material for resurfacing, and means 110 for driving the new company and/or polymer material supply device.

Here, the vehicle travel distance determining means 105 counts the pulse signal from the pulse generator 9o at the start of travel, and
When the count value reaches a predetermined value, for example, 100 pulse signals, it is determined that each vehicle has traveled a predetermined distance, and a determination signal representing this is output.

The carriage positioning means 106 causes the servo motor 95 to be driven by the determination signal, and stops driving the servo motor 95 every time the number of revolutions thereof reaches a predetermined value. In this case, the carriage 92 is moved to the right by the drive of the servo motor 95, and the distance traveled each time is determined by how many minutes in the road surface width direction the distance data is sampled, and the number of samplings is large. It is possible to measure the road surface shape with great accuracy.

The road surface distance data storage means 107 stores the distance data from the distance detector 93 in the storage device 1 every time the carriage 92 is positioned by the carriage positioning means 106.
Stored in 04.

The carriage movement end determination means 108 determines whether the carriage 92
When the carriage 92 reaches the right end position, a movement end determination signal is output. For example, when the number of data samplings in the distance data storage means 107 reaches a predetermined value, the carriage 92 is assumed to have reached the right end position, and a movement indicating that the carriage 92 has reached the right end position is output. Outputs a termination judgment signal.

The resurfacing material amount calculation means 109 calculates a plurality of distance data Xi (i-1, 2, . . . . . . n) and the pre-stored mileage.

Based on the road surface width W, the additional money + A amount T for resurfacing is calculated according to the following formula.

T-[(Σ(Xi-Xo)l/n] ・L-WI+write・・・・・・・・・・・・(1) However, XO is the ultrasonic transmitter 94 of the distance detector 93 and the reference road surface R.

The supply device driving means 110 is a resurfacing material amount calculating means 1.
Based on the calculation results in step 09, the new composite material supply device 10 and/or the old composite material scraping mechanism 26 are driven to control the amount of composite material supplied.

In addition, 111 and 112 are road surface distance data storage means 1
07 storage data and/or resurfacing mixture amount calculation means 1
This is a display that displays the data of No. 09 and a recording device that records the data.

Next, the effect will be explained. First, a case will be described in which the resurfacing method is a so-called remixing method in which the old composite material loosened by the scraping mechanism 26 is mixed with the new material and the mixed composite material is spread evenly.

In this case, the opening/closing mechanism 17 is opened and the new company stored in the receiving presser 9 is conveyed to the upper central part of the car body 2' by the chain conveyor 11, and then the chain conveyor 1
2 and transported to the opening/closing mechanism 17 position, since the opening/closing mechanism 17 is released, the new company will fall downward and be thrown into the new company receiving lower 7 of the stirring mechanism 27. Become.

In addition, before starting resurfacing, each sowing mechanism 28L
, 28R and 29 are in a state where the piston ronds of the vertical movement mechanisms 67 and 68 are contracted, that is, the scarifiers 39, 5
1 is separated from the road surface and the width of the road surface is to be resurfaced.
8L and 28R are caused to protrude outward by driving the fluid pressure cylinder 45, and the protruding lengths of the scraping blades 43 and 57 of the scraping mechanisms 28L, 28R and 29 are adjusted. In addition, the guide roller 89 of the road surface shape measuring device 85
is brought into contact with a reference surface, for example, the L-shaped groove 111 on the shoulder of the road and the center line position.

In this state, first, a road surface heating vehicle (not shown) equipped with a heater is set as a leader, and the road surface resurfacing device 1 is caused to travel following the vehicle. At this time, the distance between the two is set to such an extent that the asphalt pavement surface, which has been softened by heating by the road heating vehicle, will not harden.

When the road surface resurfacing device 1 starts traveling, first, the vehicle travel distance determining means 105 of the microcomputer 101 is activated, and based on this, the carriage positioning means 106 is activated. Therefore, the carriage 92 moves from the left end to the right by a predetermined distance and then stops. Then, each time the carriage 92 stops, the distance data storage means 107 is activated and stores the distance measurement data from the distance detector 93 in the storage device 104.

When the carriage 92 reaches the right end by repeating the above operations, a movement end determination signal is output from the carriage movement end determination means 108, and based on this, the resurfacing mixture amount calculation means 109 is activated. Therefore, the required additional amount S of mixed material for a predetermined moving distance of the road surface resurfacing device 1 is calculated.

The composite material supply device drive control means 110 is driven based on the calculated additional composite material amount S, and the cutting material supply device 10 is controlled so that the new company's supply amount becomes the additional composite material amount S. The front-side loosening mechanisms 28L and 28R of the loosening mechanism 26, which serves as a rural lumber supply device, are driven in normal rotation so that the scarifier 39 of the former company, which was loosened by the reversible hydraulic motor 49, is collected in the center. in a state of
It is lowered by the vertical movement mechanism 67. I got hooked on this,
By the cooperation of the scarifier 39 and the scraping blade 43, the old composite material softened by the road surface heating vehicle is scraped and collected in the center.

When the road resurfacing device 1 moves forward and the rear scraping mechanism 29 reaches the position of the road surface loosened by the front scraping mechanisms 28L and 28R, the vertical movement mechanism 68 of the rear scraping mechanism 29 is driven. Then, the scarifier 51 and the scraping blade 57 are lowered.

Therefore, the road surface in the center that has not been loosened by the front loosening mechanisms 28L and 28R is loosened by the rear loosening mechanism 29, and therefore, loosening starts with the road surface aligned on a line perpendicular to the width direction of the road surface. be able to.

In this way, the scraped old company is collected in the center by the scraping mechanisms 28L, 28R, and 29, so that the old company collected as the road resurfacing device 1 travels is removed from the casing of the stirring device 27. 70 through its accommodation lower 5. On the other hand, since the new company dropped from the opening 18 from the receiving picker 9 via the chain conveyor 11, 12 is supplied into the casing 70 of the stirring device 27,
This new company and the disintegrated old company are evenly stirred and mixed by the stirring blades 73. In this case, the amount of the old and new mixed material is the sum of the old company material that loosened the road surface and the additional new material material of the additional material amount S, which is an amount commensurate with maintaining the road surface at the standard level. .

Then, the stirred and mixed new and old mixed materials are transferred to the discharge lower side by the transfer action of the stirring blades 73, and are transferred to the road surface 25.
be dropped above.

The mixed material that has fallen onto the road surface 25 is reheated by the heater 79, then uniformly spread in the width direction of the road surface by the diffusion mechanism 80, and then spread evenly by the leveling mechanism 81 to form a flat surface. It will be finished.

In this way, when the road surface resurfacing work progresses and reaches the end point of the resurfacing work, first the front scraping mechanism 28L
, 28H are driven in the opposite direction to the above to raise the scarifier 39 and the scraping blade 43. Next, when the rear sowing mechanism 29 reaches the work completion point, the vertical movement mechanism 6 of the sowing mechanism 29 is moved.
8 in the opposite direction to the above to raise the scarifier 51 and the scraping blade 57. Thereby, the loosening end position at the work end point can be aligned on a line perpendicular to the road surface.

In addition, when resurfacing by the so-called repaving method in which new material is layered and spread over the old composite material that has been scraped, first the fluid pressure cylinder 20 in the opening/closing mechanism 17 provided on the chain conveyor 12 is driven. Then, the piston rod 21 is contracted and the opening 1 of the bottom plate 16 is opened by the opening/closing plate 19.
Block 8.

As a result, the new company stored in the receiving damper 9 is conveyed by the chain conveyor 11, 12 and falls onto the road surface 25 between the °ζ spreading device 80 and the leveling device 81.

In this way, the road surface resurfacing device 1
The old company is run, the old company is scraped by the scraping mechanism 26, only this loosened mixed material is stirred by the stirring mechanism 27, and the agitated old company is discharged from the stirring mechanism 27 onto the road surface. Discharge. Then, the discharged stirring polymer material is uniformly spread in the width direction of the road surface by a spreading device 80. The new company falling from the chain conveyor 12 is layered on top of this spread old composite material, so the layered new company is spread uniformly in the road surface width direction by the screw conveyor 84 of the leveling device 81, and then It is leveled with a screed 83 and finished into a flat surface.

In this way, even if the repaving method is used, the old company that has been scraped up is stirred with a stirring device, so the deteriorated old company can be appropriately agitated, and when resurfacing, it is possible to mix It is possible to prevent variations in the quality of the old company.

Next, a description will be given of a processing procedure when each of the above-mentioned means in the microcomputer 101 is realized by a program mainly based on a microprocessor sensor.

FIG. 10 shows this processing procedure. When the road surface resurfacing device 1 starts running, the program starts, and in step (2), it first outputs a drive control signal to drive the servo motor 95 in normal rotation. and moves the carriage 92 to the right. Then, in step (2), the pulse counter 99a is supplied with the pulse signal of the photointerchanger 99.
Then, in step (2), it is determined whether the carriage 92 has moved a predetermined distance. In this case, the judgment is made based on whether or not the count content of the pulse counter 99a has reached a predetermined value.If the judgment result of this step (■) is that the carriage 92 has not moved a predetermined distance, the carriage returns to the steering knob (■) and the carriage When the motor 92 reaches a predetermined distance G, the process moves to step (2) and the rotation of the servo motor 95 is stopped.

Next, in step ■, the pulse counter 99a is reset, and then, with the step knob ■, the distance between the distance detector 93 and the road surface at the current position of the carry knob 92) (i is the distance measurement data from the distance detector 93). , and temporarily stores it in a predetermined storage area of the storage device 104.

Next, the process moves to step (2), and it is determined whether or not the lever lever 92 has reached the right end. The determination in this case is made by determining whether the number of distance measurement data stored in the storage device No. 104 by the steering knob (2) has reached a predetermined value. Then, steps ■ to step knob ■ are repeated until the cap key 92 reaches the right end, and the cap key 92 reaches the right end.
When it reaches the right end, the process moves to step (2), where the distance measurement data stored in the storage device 104 is read out using the steering knob (2), and the above fl1 formula is calculated to calculate the amount of additional material S.

Next, the process proceeds to step (2), and based on the calculation result of step (2), the chain conveyor 11.1 of the metal cutting material supplying device 1o is
2 is driven for a predetermined period of time to supply new material corresponding to the additional amount of mixed material to the stirring mechanism 27 or the spreading mechanism 81. In this case, the chain conveyor 11, 12 is driven for a time commensurate with the required amount of mixed material (or the chain conveyor speed is controlled, or the gate height is controlled), and the new company is stirred by the stirring mechanism 27. Alternatively, it is dropped to a position in front of the leveling mechanism 81.

Next, proceeding to step [phase], the servo motor 95
and then in step 0 microswitch 10
Determine whether 0 is on. Micro switch 1
When 00 is in the off state, return to step [phase],
When the microswitch 100 is turned on, the process moves to step [phase].

In this step @, it is determined whether or not to end paving. The determination in this case is made by determining whether or not a paving end switch provided in the cockpit has been pressed. When the paving end switch is not pressed, the process moves to step 0 and the travel data is read. The running data in this case is obtained by reading the contents of the pulse counter 90a. Next, the process moves to step (3), where it is determined whether the vehicle has traveled a predetermined distance. The determination in this case is made by determining whether the count content of the pulse counter 90a read in step 0 has reached a predetermined value. When the vehicle has not traveled a predetermined distance, it returns to step @, and when the predetermined distance is reached, it returns to step ■
Then, the counter 90a is reset, and then the process returns to step (2).

Then, when the paving end switch is pressed, step @
The process moves to step [phase] and ends.

By the way, in the program shown in Figure 10, step ■
The processing of ~■ is carried out by the carriage positioning means 106 in FIG.
A specific example will be shown below, and the process of step (2) will be shown as a specific example of the distance data storage means 107. Further, the process of step (2) is a specific example of the carriage movement end determination means 108, the process of step (2) is a specific example of the resurfacing mixture amount calculation unit 109, and the process of step (2) is a specific example of the carriage movement end determination means 108, and the process of step A specific example of the polymer material supply device driving means 110 and the processing of steps @ to [phase] are specific examples of the vehicle mileage determining means 105, respectively.

Next, a second embodiment of the invention will be described with reference to FIG.

In this second embodiment, the level of the resurfaced road surface is brought to the reference level by maintaining the amount of composite material supplied by the cutting material supplying device 10 at a constant value and adjusting the old composite material loosened by the loosening mechanism 26. It was designed to be kept at

That is, the total amount of composite material T (=WXDXL) necessary to maintain the reference level is stored in the storage device 104 in advance, and the required amount of material U based on the difference between this total amount of composite material T and the amount of cutting material S.
o (=T-U) is stored in the storage device 104, and after calculating the additional material amount S in step ■ in FIG. The amount of material U to be loosened is calculated by calculating the difference value. Next, the process moves to step (2) b, and the difference value ΔU between the requested material amount U calculated in step (2) a and the required material amount Uo stored in the storage device 104 is calculated. Then, in stitch ■C, the hydraulic motor 49.56 of the loosening mechanism 26 is controlled based on the difference value ΔU calculated in step ■b to adjust the old mixed material supply amount to an appropriate value, and then the process moves to step [phase]. do.

In this way, according to the second embodiment, the road surface level after resurfacing can be adjusted to an accurate reference level by adjusting the amount of old composite material taken in while keeping the supply amount of cutting material constant. It can be done.

In addition, in this second embodiment, the distance detector 93 is not limited to the case where the additional material amount S is calculated, and then the difference value from the total material amount T is calculated to calculate the additional material amount U to be loosened. The distance Xf to the bottom to be loosened by the ultrasonic wave transmitter 94 and the straw loosening mechanism 23 may be stored in advance in the storage device 104, and the amount of material to be secured U may be calculated based on the following formula.

U= [(W (xf −Xi)) /n] XLX
W 1 ・・・・・・・・・・・・(2) Here, Xf is the distance between the ultrasonic wave transmitter 94 of the distance detector 93 and the bottom when loosened by the loosening mechanism 26 is the distance.

Next, a third embodiment of the invention will be described with reference to FIG.

This third embodiment is for automatically setting the supply ratio between the old company and the new company by calculating the amount of cutting material to be added and the amount of polymerized material to be removed.

That is, the processes from step (1) to step (2) are the same as those shown in FIG. 10, and detailed explanation thereof will be omitted. However, in this embodiment, the process moves from step (2) to step (2)d, and the amount S of additional composite material and the amount U of polymerized material to be loosened are calculated, respectively. In this case, the amount of additional composite material T is calculated using the above-mentioned formula fl1, and the amount of polymerized material U is calculated using the above-mentioned formula (2).

Next, the process proceeds to step (2) e, in which the mixing ratio S/U of the additional mixed material amount S and the polymerized material amount U is calculated, and then the process proceeds to step (2) f.

In this step ■f, it is determined whether the mixture ratio S/U calculated in step ■e is a predetermined value or not. If it is a predetermined value, the process moves to step ■ in FIG. If the mixture ratio S/U is different from the predetermined value, the process proceeds to step g, and a control signal is sent to the disconnection material supply device 1o and the loosening mechanism 26 to make the mixture ratio S/U an appropriate value.
After outputting, move to step [phase]. in this case,
The amount of supplied material supplied to the scraping mechanism 26 is controlled by reversing the hydraulic motors 49 and 56 of the scraping mechanism 26 from the normal rotation state and adjusting the time for this reversal, so that the part of the old company that has been scraped can be controlled. This is done by scraping it out.

Therefore, according to this third embodiment, it is possible to spread the old company material and the new company material in a predetermined mixing ratio, and it is possible to maintain a uniform quality of the mixed material during resurfacing. , the durability of resurfaced road surfaces can be improved.

In addition, in each of the above embodiments, the case where a scarifier is applied as the rotary scraping mechanism has been explained, but this is not limited to this, and other rotary sowing loosening mechanisms can be applied, and in short, the old company that scraped the It is only necessary to have a structure that can collect it inward or scrape it out to the outside.

Furthermore, the road surface shape detection device 85 is not limited to the above-mentioned embodiment, and a movable element having an engagement roller at the lower end is disposed on the carriage 92 so as to be movable up and down. Engage and move up and down according to the road surface shape,
The displacement of the moving element may be detected by a displacement detector such as a differential transformer or a detection coil to obtain an electrical detection signal, or any other distance measuring device may be applied.

Further, in each of the embodiments described above, the road surface shape detection device 85 is operated to read the road surface shape every time the road surface resurfacing device 1 travels a predetermined distance. It is also possible to operate the system to continuously read the road surface shape and take into account the traveling speed of the road resurfacing device 1 to perform more accurate road surface shape detection.

Similarly, the shorter the sampling period of the distance detector 93, the more the road surface shape detection accuracy can be improved.

- As explained above, according to the present invention, the old asphalt paving material that forms the road surface is loosened by the loosening mechanism, and the new asphalt paving material is spread together with the new asphalt paving material or in a layered manner on top of it. A road surface resurfacing device that resurfaces a road surface by leveling the road surface includes a road surface shape detection device that detects the cross-sectional shape of the road surface, and a road surface shape detection device that detects the intake amount of the old asphalt pavement material based on the detection signal of the road surface shape detection device. Calculating means for calculating at least one of the supply amounts of new asphalt pavement materials;
The present invention is configured to include a control means for controlling at least one of the old asphalt pavement material intake device and the new asphalt pavement material supply device based on the calculation result of the calculation means. Therefore, by detecting the road surface shape with a road surface shape detection device, calculating the amount of additional composite material corresponding to the reference level based on the detected data, and adjusting at least one of the amount of polymerized material and the amount of disconnected material, It is possible to accurately set the road surface level after resurfacing to the reference level, and it is possible to obtain the effect that optimal road surface resurfacing can be performed.

[Brief explanation of the drawing]

FIG. 1 is a schematic configuration diagram showing one embodiment of the present invention, and FIG.
Figures (A) and (B) are a plan view and a sectional view taken along the line B-B of an example of a cutting material supply device, FIG. 3 is a plan view of an example of a loosening mechanism, and FIG. Its side view, FIG. 5 is a sectional view taken along line V-V in FIG. 3, FIG. 6 is a plan view showing an example of the stirring mechanism, and FIG. 7 is a front view showing an example of the cross-sectional shape detection device. , FIG. 8 is a block diagram showing an example of the control device, FIG. 9 is a block diagram showing the configuration of the microcomputer, FIG. 10 is a flowchart showing the processing procedure of the microcomputer, and FIGS. 11 and 12. are flowcharts showing other embodiments of the present invention. 1...Road resurfacing device, 2...Vehicle body,
10... Cutting metal supply device, 11.12...
... Chain conveyor, 26 .... Loosening mechanism, 27 .... Stirring mechanism, 80 .... Diffusion mechanism, 81 .... Leveling mechanism, 8.・・・・・・
・Road surface shape detection means, 92...Carry nozzle,
93...Distance detector, 101...Microcomputer, 105...Vehicle travel distance determining means, 106...Carriage positioning means,
107...Road surface distance data storage means, 108.
...Carriage movement end determination means, 109...
. . . Compound material calculation means for resurfacing, 110 . . . New material and/or country material supply device driving means. Patent Applicant Sakai Heavy Industries Co., Ltd. Representative Patent Attorney Tetsuya Mori Patent Attorney Naito Kurama Representative Patent Attorney Shimizu Authorized Representative Patent Attorney Baize Horide

Claims (1)

[Claims] Road surface resurfacing involves loosening the old asphalt paving material that forms the road surface using a scraping mechanism, and then spreading the new asphalt paving material together with the new asphalt paving material, or by layering and spreading the new asphalt paving material on top of it. In the paving device, a road surface shape detection device detects the cross-sectional shape of the road surface, and at least one of the intake amount of the old asphalt paving material and the supply amount of the new asphalt paving material is calculated based on the detection signal of the road surface shape detection device. 1. A road resurfacing device comprising: a calculation means for calculating the amount of new asphalt pavement; and a control means for controlling at least one of an old asphalt pavement material intake device and a new asphalt pavement material supply device based on the calculation result of the calculation means.