JPS6011170B2 - Repair vehicle for paved roads, etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to a vehicle for repairing paved roads, etc.

Paved roads, especially asphalt pavements, are widely used due to their excellent workability.
There are problems with wear on spike tires, etc., and as a result, in areas with heavy traffic, there are loops and unevenness due to fluidization in high overflow areas, making repairs impossible.

Conventionally, to repair such paved roads, road heating machines,
Paving road repair vehicles equipped with roadbed cutting machines, roadbed material heating machines, mixers, screw spreaders and screeds, and pavement material laying equipment equipped with screw spreaders, tampers and screeds for roadbed paving are known. ing. However, all of these conventional technologies are dedicated machines and cannot be used for various work purposes.In the end, models suitable for various work purposes have been developed to accommodate the diversity of work. I had to get everything together. This invention was made in view of the above circumstances, and provides a paved road etc. that can be used for various work purposes by being equipped with two road surface heating machines, front and rear, and by raising and lowering various equipment separately. The purpose is to provide repaired vehicles.

An embodiment of the present invention will be described in detail below based on the drawings.

1 and 2 show the overall structure of a repair vehicle according to the present invention.

In the figure, code 1 is the steering wheel (front wheel), 2 is the stiffening theory (rear wheel),
3 is a frame (
body). At the front of the lower surface of the frame 3 is attached a support 5 that can be raised and lowered by a hydraulic cylinder 4. On the lower surface of this support 5, from the front in the direction of travel, are a front road surface heater 6, a scarifier 7, a rotary cutter 8, and a rear section. The road surface heating devices 9 are installed one after another.Incidentally, both the road surface heating devices 6 and 9 have burners 6a and 9a arranged in the center, the surroundings are covered with hoods 6b and 9b, and heat sinks 6c and 9c are attached to the open openings on the road surface side. The burner 6a,
Air is sent to the ga from a blower 26 installed on the frame 3 through a blow pipe 25. On the other hand, the scarifier 7 and the rotary cutter 8 are attached to the support base 5 via a hydraulic cylinder 0 so as to be able to move up and down independently of the up and down movement of the support base 6. Further, a screw scraper 12 and a screed 13 are attached to the lower surface of the frame 3 located behind the rear road surface heating device 9 via a hydraulic cylinder 11 so as to be movable up and down. By the way, the screed 13 is disposed immediately after the screw scraper 12 and the adjusting screw 13
a allows the vertical adjustment to be made independently of the screw scraper 12. Also, the screen
A new repair material feeder 14 is attached to the frame 3 located behind the door 13. This repair Shinmura feeder 14 consists of a hopper 14b with an open upper entrance and a lower closed end closed with a rotor 14a, and this hopper 14b
A screw agitator 14c is installed in the center lateral direction inside the
is provided. Immediately after the lower closed portion of the repair new material feeder 14, a mixer 16 is attached via a hydraulic sill 15 fixed to the back sloped wall of the hopper 14b so as to be movable up and down. Further, behind the mixer 16, a tamper 17 and a final stage screed 18 are sequentially arranged. Incidentally, the tamper 17 and the final stage screed 18 are respectively attached to a slide frame 20 that is raised and lowered by a hydraulic cylinder 19 attached to the frame 3, so that they can move up and down together, and the tamper 17 is connected to the eccentric pith 17a and here. A crank 17b connected thereto drives the protrusion and retraction. In the figure, 21 is a guide rod that guides the vertical movement of the support base 5, 22 is a fuel tank connected to the burner 6a, 23 is a fuel discharge pump, 24 is a fuel supply pipe, 27 is an engine, 2
8 is a handle, and 29 is a deflector. Next, the present invention will be explained using the above configuration. The operation will be explained with reference to various repair modes shown in FIGS. 3 to 7. The repair mode shown in FIG. 3 is the regeneration and repair of aged or severely worn asphalt pavement.

A repair vehicle that has been driven over a surface requiring repair is maintained at its working speed.

The work start drive ignites the burners 6a and 9a of the front and rear road surface heaters 6 and 9, and each heat sink 6c and 9c burns approximately 5
It is set from 00qo to 800oo. Simultaneously with this setting, the hydraulic cylinder 4 is operated, and each of the heat sinks 6c
, 9c and the relative spacing between the diamond repair surface is set. Note that asphalt pavement deteriorates when heated to a temperature of 500 oo or more, so it is important to determine the intervals so that the surface temperature is 500 oo or less. Therefore, when heating the asphalt paved surface immediately with burners 6a and 9a,
Although uneven heating occurs and strongly heated areas deteriorate the asphalt, the road surface heating devices 6 and 9 are equipped with heat sinks 6c and 9c.
The asphalt is heated evenly without deteriorating. When the surface requiring repair is heated to approximately 80°C to 100°C by the front road surface heating device 6, the scarifier 7 and rotary cutter 8 are lowered by the operation of the hydraulic cylinder 10 and come into contact with the surface requiring repair. The asphalt is first scraped up, then cut to a predetermined depth, and the cut asphalt is turned over. In order to heat the loosened pavement to a uniform temperature, it is turned over and the lower temperature of the pavement is exposed to the surface. The inverted asphalt pavement is then heated again by the road surface heating device 9 at the next stage. By this reheating, the asphalt pavement reaches a temperature of approximately 130°C, which is approximately the same as the normal laying temperature.
It is heated to 16,000°C and passes below the road surface heating machine 9. The asphalt mixture (pavement) that has undergone the scraping, inversion, and reheating treatment is smoothed by the next screw scraper 12, and the temperature becomes uniform, and then the asphalt mixture (pavement) is scraped to a predetermined thickness by the next screed 3. It is spread evenly. The asphalt mixture thus spread is pressed by a deflector 29, hardened by a subsequent tamper 17, compacted by a vibrating screed 18 in the final stage, and compacted by a traveling compaction wheel 2 to be regenerated as a paved surface. Note that in the above-mentioned asphalt regeneration and repair, no new repair material is introduced, so the mixer 16 associated with this is not operated. The repair mode shown in Fig. 4 is a process similar to the repair mode shown in Fig. 3, in which a new repair material, such as a highly wear-resistant mixture, is added to the asphalt mixture that has been raised, inverted, reheated, sanded, and leveled. is supplied from the hopper 14b and a new repair material layer of a predetermined thickness is formed on the treated asphalt mixture layer, and while this is pressed by the deflector 29, it is smoothed by the tamper 17 and the screed 18. Finally, the compaction wheel 2 repairs the compacted paved surface.

The new repair material is pushed by a screw 14c in the hopper 14b and is supplied in a fixed amount drop by drop as the rotor 14a rotates at a constant speed. The repair mode shown in FIG. 5 adds the function of the mixer 16 to the above-mentioned repair mode shown in FIG. The paved surface is compacted, held down by a deflector 29, smoothed by a tamper 17 and a screed 18, and finally compacted vertically in compaction theory 2 to repair the paved surface.

The repair mode shown in Figure 6 uses, for example, crushed stone with asphalt coated on the surface instead of the new repair material in the repair mode shown in Figure 5 above, and this is sprinkled on the asphalt surface that has been heated in the pretreatment. The compaction wheel 2 is used to repair an asphalt pavement surface with a buried surface.

In the case of this repair mode, the mixer 16 is
, except for the treatment by the tamper 17 and screed 18. In the repair mode shown in FIG. 7, the functions of the scarifier 7 and rotary cutter 8 are stopped from the pretreatment process,
Heating is performed by the front and rear road surface heaters 6 and 9, and the feeder 14 is applied to the heat-treated asphalt surface as a new repair material.
A new material with high wear resistance is supplied from the ground, flattened by a deflector 29, a tamper 17, and a screed 18, and finally repaired to the compacted pavement surface in compaction theory 2.

In this type of repair, for example, if crushed stone with a relatively large particle size is used to prevent fluidization of the pavement and undulation of the pavement surface, there are problems such as the presence of many voids in the pavement surface and easy peeling, so this should not be done. The repair vehicle according to the present invention is extremely effective in such repairs as well. Although the fuel to be supplied to the road surface heating machine was not explained, various fuels such as light oil, kerosene, and LPG can be used, and the fuel is not particularly limited.

As described above, the present invention allows each elevating means for elevating and lowering various work equipment to be operated separately and independently, so that when performing asphalt repair work, for example, the scarifier, rotary cutter, screw scraper, and screed can be operated separately. It can be used not only to operate the road surface heating device but also to operate the roadbed paving mechanism at the same time, making it possible to perform higher-level work than a dedicated machine with only a single function.

[Brief explanation of the drawing]

FIG. 1 is a side view showing the overall structure of a repair vehicle according to the present invention, FIG. 2 is a plan view thereof, and FIGS. 3 to 7 show various repair modes using the repair vehicle. 1... Steering theory (front wheels), 2... Compaction theory (rear wheels), 3... Frame, 6, 9... Road surface heating machine,
7... Scarifiya, 8... Rotary cutlet, 12...
...Screw scraper, 13...Screed, 14.
...Repaired Sinchon feeder, 16...Mixer, 17
...Tamper, 18...Final stage screed. Figure 1 Figure 2 Figure 3 Figure 4 Figure 5 Figure 6 Figure 7

Claims (1)

[Claims] 1 Steering wheel 1 is at the front, and compaction wheel 2 is at the rear.
a frame 3 on which are respectively arranged, a support 5 arranged on the rear side of the steering wheel 1 and raised and lowered relative to the frame 3 by a first elevating means 4; , and a pair of road surface superheaters 6 and 9 having heat sinks 6c and 9c attached to the road surface side, and a blower provided on the frame 3 and blowing air to the road surface superheaters 6 and 9 via a blower pipe 25. 26, and the pair of road surface superheaters 6, 9.
A scarifier 7 is provided between the scarifier 7 and the scarifier 7, which is raised and lowered with respect to the support base 5 by the second elevating means 10, and a scarifier 7, which is provided between the scarifier 7 and the road surface heating machine 9 on the rear side, and which is raised and lowered together with the scarifier 7. A third lifting means 1 is installed behind the rotary cutter 8 and the road surface heater 9 on the rear side.
1, the screw lever 12 is provided to be able to rise and fall freely with respect to the frame 3, and the screw lever 1
A screed 13 is raised and lowered together with the screed screed 12 on the rear side of the screed 1, and a rotor 1 is mounted in the lower opening.
4a, a hopper 14b arranged behind the screed 13, a mixer 16 provided behind the hopper 14b so as to be able to be raised and lowered by a fourth lifting means 15, and a fifth lifting means 19 behind the mixer 16. The tamper 17 is arranged to be able to be raised and lowered freely by the tamper 1.
7 and a compaction wheel 2, and a final stage screed 18 that is raised and lowered together with the tamper 17.