JPH03199503A - Scratched material extractor in on-road cutting mixer - Google Patents

Abstract

PURPOSE:To improve the workability and safety, and to shorten construction period by providing an extractor between a cutter device and a mixer device, and by extracting scratched materials scratched by the cutter device to the side of a running car body. CONSTITUTION:A cutter device 32 is provided on the running car body comprising a preceding car body 1 and a following car body 2, so as to scratch a paved road surface, while a mixer device 46 is provided thereafter, so as to mix materials. An extractor 70 is then provided in a proruded manner to the side of the running car body, between the cutter device 32 and the mixer device 46, so as to extract the scratched materials scratched by the cutter device 32 to the side of the running car body. The scratched materials are supplied to the mixer device 46 as required.

Description

Detailed Description of the Invention "Industrial Application Field" This invention is a road cutting mixer applied to a road surface reclamation method, in which the loosening material scraped by a cutter device is transferred to the side of a traveling vehicle body. Relating to a device that can be extracted.

"Conventional technology" Generally, in the road surface restoration method, when an existing asphalt pavement road surface is repaired using a remixer, etc., the road surface is heated by a heating device installed in the remixer, and the heated road surface is scraped by a cutter device. The loosened material and the new composite material are mixed by a mixer device, this mixed material is spread on the road surface by a spreading device, and the spread material is compacted by a leveling device. I try to spread it evenly.

By the way, in the above-mentioned road restoration method, all of the scraped material that has been scraped by the cutter device is In some cases, a part of the road surface is extracted without being laid on the road surface. Conventionally, in such cases, the road surface is scraped off with a special cutting machine before construction, or it is loosened with a cutter device during construction. A worker was removing the scraped material with a shovel or the like.

``Problem to be solved by the invention'' However, the above-mentioned method of scraping off before construction requires a special cutting machine, takes extra construction time, increases labor costs, and also requires scraping by workers during construction. In this method, the workers work near the traveling vehicle body, which poses a danger to the workers and requires a great deal of labor.

``Object of the Invention'' This invention has been made in view of the above circumstances, and provides a method for removing loosened material in a road cutting mixer that allows easy and safe removal of the loosened material during construction by a cutter device. The purpose is to provide equipment.

"Means for Solving the Problem" In order to achieve the above object, the present invention provides a cutter device installed on a traveling vehicle body to scrape the paved road surface, and a mixer device installed behind the cutter device to mix materials. A extraction device is installed between the machine and the machine, which protrudes to the side of the vehicle body and extracts the loosening material scraped by the cutter device to the side of the vehicle body.

"Function" In the present invention, the required amount of loosening material is supplied to the mixing device by pulling the loosening material scraped by the cutter device to the side of the traveling vehicle body by the extraction device. Therefore, there is no need to scrape the road surface with a special machine before construction, and there is no need for the worker or the worker to remove scraping material near the vehicle body during construction.
The scraping material can be easily and safely removed during construction, and the labor of the worker can be reduced.

Embodiment An embodiment of the scraping material extraction device for a road cutting mixer according to the present invention will be described below with reference to FIGS. 1 to 5.

First, before explaining the scraping material extraction device in the road cutting mixer, the overall configuration of the road cutting mixer will be explained in the fourth section.
This will be explained with reference to the figures and FIG.

The on-road cutting mixer shown in these figures has a leading vehicle body 1 and a trailing vehicle body (traveling vehicle body) 2 that follows the leading vehicle body (traveling vehicle body) 1. The leading vehicle body I and the trailing vehicle body 2 each have the following components. It is equipped with the various devices shown below.

That is, a hopper device 3 is provided at the front of the preceding vehicle body 1 to receive new material from a dump truck or the like.

In this hopper assembly R3, a pair of left and right wings 4.4 can be rotated downwardly via hinges 5, 5 that are parallel to each other. Each wing 4 is provided with a cylinder 7.
It is rotated up and down about the hinge 5 and erected at a predetermined angle with respect to the horizontal.

Further, a feeder device 10 is provided at the widthwise center 17 of the preceding vehicle body 1, extending from between the wings 4.4 to the rear of the preceding vehicle body 1.

This feeder device 10 runs on a dog pan 11 attached to a leading vehicle body l so that the height gradually increases toward the rear, and between a pair of endless chains +3.13, a predetermined fL'! Conveyance bars installed at intervals are moved by an endless chain 13, 13, and the movement of these conveyance bars conveys the new material put into the hopper device 3 to the rear end of the preceding vehicle body 1. , and is carried out by a carrying-out chute 14.

Further, the lower surface ζ of the preceding vehicle body 1 is located at the front wheel 20°20°.
A heating device 25 is provided behind the paved road surface to heat the existing paved road surface before it is scraped, and this heating device 25 is moved up and down by a hydraulic cylinder 26.

Furthermore, the new composite material conveyed by the feeder device 10 is placed on the frame at the rear of the leading vehicle body entrance to the trailing vehicle body 2.
A transfer feeder device 15 (shown in FIG. 5) is provided. This transfer feeder device t15 has a support frame 15b that supports the feeder section 15a,
Via the arm 15c and the bracket 15d, the cylinder 16 rotates the support frame 15b upward using the base end (the upper end in the figure) as a fulcrum to position the carry-out hopper 15e above the following vehicle body. The conveyed new mixed material is supplied to the following vehicle body via the carry-out hopper 15e, and the feeder section J5a
is provided on the support frame 15b and the feeder section 15a
By pivoting in the left-right direction about a rotating shaft 15r that rotatably supports the vehicle body 1, it follows the relative horizontal deflection between the preceding vehicle body l and the following vehicle body 2.

Further, a cutter device @32 for scraping the paved road surface heated by the heating device 25 is provided on the frame behind the heating device 25.

In other words, this cutter device 32 includes a pair of telescopic cutters 33, 33 which are provided in a direction perpendicular to the direction of movement of the preceding vehicle body l and which are self-injecting toward and away from each other so that the scraping width can be changed, and these telescopic cutters. The telescopic cutter 33.33 and the fixed cutter 34 are arranged around the axis of a support member 351 which is supported on the frame of the preceding vehicle body l so as to be able to rise and fall freely. It is rotatably supported. This support member 35 is raised and lowered by a hydraulic cylinder 36, thereby adjusting the depth of scraping. In the cutter device 32 having the above configuration, the telescopic cutters 33 and 33 are moved closer and further apart to adjust the scraping width.
The fixed cutter 34 scrapes the road surface that has not been scraped between the telescopic cutters 33 and 33.

Further, as shown in FIG. 5, the ff1 end j of the following vehicle body 2 is provided with a pickup feeder 40 for scooping up the scraped material scraped by the cutter device 32.

That is, a casing 4M of a pickup feeder 40 is provided at the front of the following vehicle body 2 with its rear end supported by a shaft 42, and this casing 41 is mounted on a hydraulic cylinder 43 and rotated in the vertical direction about the shaft 42 as a fulcrum. It is designed to move. Further, an auger casing 44 whose front and lower surfaces are open is provided at the tip of the casing 41, and an auger is supported within the auger casing 44 so as to be rotatable around an axis. Furthermore, a feeder device having a structure similar to that of the feeder device R10 described above is provided in the casing 41, and this feeder device conveys the loosened material scraped by the auger to the center in the width direction of the following vehicle body. , casing 4! It is adapted to be carried out onto a weighing feeder device 45, which will be described later, through an opening formed at the rear end.

A weighing feeder device 45 is provided behind the pick-up feeder 40 and supported by the frame of the following vehicle body 2, and this weighing feeder device 45 conveys the scraped material and weighs its weight. At the rear of the feeder device 45, the mixture is supplied to a mixer device 46 provided on the frame of the following vehicle body 2.

Further, above the weighing feeder device 45, a weighing feeder device 47 is provided to be supported on the upper surface of the frame of the following vehicle body 2, and this weighing feeder device 47 allows the transfer feeder device 15 of the preceding vehicle body l to The supplied new composite material is conveyed, weighed, and supplied to the mixer f1146.

Further, behind the mixer device W146, a spreading device 48 is provided for spreading the mixed material mixed by the mixer device 46 onto the road surface. In this unwinding device 48, a screw 48a which extends in the width direction of the trailing vehicle body 2 and is rotatable around an axis is supported by a frame at the rear end of the trailing vehicle body 2 via a support member 48b so as to be able to rise and fall. 48c, and by rotating the screw 48a, the mixed material is transferred in the width direction of the following vehicle body 2 and uniformly spread on the road surface.

Behind the above-mentioned spreading device 48, there is a rug spreading device 4 that spreads and level the mixed material evenly spread on the road surface.
9 is provided. This leveling device 49 is used for the following vehicle body 2.
One end is attached to the central part of the leveling arm 50, and the other end of the pair of leveling arms 50. A left screed 49a is installed to extend the leveling width to the left, and a left screed 49a is installed behind the left screed 49a to be movable in a direction perpendicular to the traveling direction of the following vehicle body 2. A right screed 49b for expanding the. And each screed 49a,
A vibrator provided on the screed 49b applies vibration to each screed 49a, 49b, and the screed plate on the lower surface flattens and compacts the mixed material on the road surface.

Further, the cutter device 3 is provided at the front end of the following vehicle body 2.
A extracting device 70 according to the present invention is provided for extracting the loosening material loosened by 2 to the side of the road surface.

That is, on the upper part of the auger casing 44, brackets 71 and 72 are removably provided with bolts and nuts, and at the lower ends of these brackets 71 and 72, there is provided a casing 73 that has a U-shaped cross section and is open at the top. Brackets 74 and 75 provided on the upper edge are bolts 7G.
... allows it to be attached and detached freely, and the mounting position can be adjusted in the height direction.
It is attached so that it can be adjusted slightly in the front and rear directions.

This casing 73 is perpendicular to the traveling direction of the following vehicle body 2, and protrudes from the widthwise central portion of the following vehicle body 2 to the side of the following vehicle body 2, and gradually increases in height from the road surface as it goes to the side. It is sloped so that it is higher.

Also, the proximal end of the casing 73 (the left end fl in FIG.
) is formed with substantially rectangular carrying-in lowers 3a and 73a for carrying the loosening material loosened by the force-sweeping device 32 into the casing 73, and a carrying-out lower part 3a, 73a for carrying the loosening material into the casing 73 is formed at the tip thereof. A chute 73b is formed. The upper surface of the casing 73 in the portion where the carrying-in lower 38° 73a is formed is closed by a cover 748 that is a part of the bracket 74.

Furthermore, bearings WJ77.7 are provided at both ends of the casing 73.
7 is attached, and both ends of a rotation 1d 178 extending in the longitudinal direction of the casing 73 are supported by these bearings 77 and 77, respectively.

A screw 79 extending spirally in the axial direction is provided on the outer peripheral surface of the rotating shaft 78.
9 rotates together with the rotating shaft 78 to convey the loosening material toward the side of the following vehicle body 2.

A coupling mechanism 80 is provided at the end of the casing 73 protruding from the following vehicle body 2 (the right end in FIG. 1), and a cover 81 surrounding this coupling mechanism 80 is provided with a reducer. extraction motor 83 having 82
is installed.

Then, the hydraulic motor 83 is connected to the coupling mechanism 807.
The rotation of the drive shaft is transmitted to the rotating shaft 78.

In the extracting device 70 having the above configuration, when the preceding vehicle body 1 and the following vehicle body 2 run in tandem and perform repair work on the asphalt pavement sN road surface, the hydraulic motor 83 drives the rotary shaft 78.
By rotating the screw 79, the screw 79 is rotated in a direction to transfer the object from the proximal end to the distal end. Leading car body
When the scraped material scraped by the cutter device 32 reaches the pick-up feeder 40 as the following vehicle body 2 advances, the screw 79 is moved from the loading lower 3a formed at the base end of the casing 73. A portion of the scraping material is taken into the casing 73, conveyed toward the tip, and taken out from a carry-out chute 73b formed at the tip.

As a result, a part of the scraping material is pulled out to the side of the road surface, passes through the pick-up feeder 40, and is transferred to the mixer device 46.
The amount of loosening material supplied to the road surface is limited, and the height of the repaired road surface is maintained at a predetermined value.

The scraping material pulled out to the side of the road surface is picked up by a wheeled wheel or a small wheel loader, and then disposed of as appropriate.

According to the extraction device 70 having the above configuration, the cutter device 32
Since the loosened material is extracted to the side of the following vehicle body 2, there is no need to scrape off the road surface using a special cutting machine or the like before constructing the road surface, as was the case in the past.
Moreover, there is no need for the worker to remove the loosening material that has been loosened by the cutter device 32 near the following vehicle body 2 during construction, so the loosening material can be easily and safely removed during construction. The labor of the worker can be reduced.

In addition, since the loosening material is conveyed by the screw 79 rotatably provided in the casing 73, the loosening material does not fall onto the road during transportation.
Moreover, the extraction device 70 itself does not become large in size.

In the above embodiment, the extraction device 170 (
i of the pickup feeder 40 in the following vehicle body 2
It is installed on the +Q side and extracts the scraping material to the side.
Mixer device 1 at the rear by the pickup feeder 40
The amount of loosening material supplied to the pick-up feeder 40 is limited, but the extraction device 70 is installed at an appropriate position behind the cutter device 32 in the preceding vehicle body (■), and the extraction device 70 is installed at an appropriate position behind the cutter device 32 in the preceding vehicle body (2) to prevent the loosening material from reaching the pick-up feeder 40. , a part of it may be extracted to the side of the vehicle body.

Further, in the above embodiment, the cutter device 32 and the mixer device 4G
This is an example in which the machine is applied to a road cutting mixer in which the preceding car body 1 and the following car body 2 are provided separately, and these car bodies 1 and 2 run in tandem to work, but the present invention is not limited to this. First, the present invention can also be applied to an on-road cutting mixer in which the cutter device 32 and mixer device 46 are provided on the same traveling vehicle body.

``Effects of the Invention'' As explained above, according to the present invention, between the cutter device that scrapes the paved road surface and the mixing device that mixes the materials, a device protrudes to the side of the traveling vehicle body, and the cutter device scrapes the paved road surface. Since we have installed a extraction device that extracts the loosened scraping material from the side of the vehicle body, there is no need to scrape the road surface with a special machine before road construction, as in the past.
There is no need for the work vehicle to pull out the loosening material that has been loosened by the cutter device near the traveling vehicle body during construction, so the loosening material can be easily and safely removed during construction, and the construction period is delayed. without letting me,
The labor of the worker can be reduced.

[Brief explanation of drawings]

1 to 5 show an embodiment of a scraping material extraction device in a road cutting mixer according to the present invention, FIG. 1 is a sectional view of the extraction device, and FIG. 2 is a cross-sectional view of the extraction device ■-■ line fixation diagram Figure 3 is the ■-■ line fixation diagram in Figure 1.
4 is a side view of the preceding vehicle body, and FIG. 5 is a side view of the following vehicle body. ■... Leading vehicle body (running vehicle body), 2... Following vehicle body (following vehicle body), 32... Cutter device, 46... Mixer device, 70... ...Extraction device.

Claims (1)

[Claims] In a road cutting mixer in which a running vehicle body is provided with a cutter device for scraping a paved road surface and a mixing device for mixing materials behind the cutter device, the traveling vehicle body is provided between the cutter device and the mixing device. A scraping material extracting device for a road cutting mixer, characterized in that a scraping device is provided that projects laterally and extracts the scraping material loosened by the cutter device to the side of a traveling vehicle body.