JPS5972304A - Regenerating and paving machine - 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] This invention provides a pavement body for an asphalt-paved road.
If ruts (indentations in the wheel running area) occur due to millet or flow, the pavement should be loosened and laid flat, and then a new bituminous mixture should be supplied and spread on top of it. In particular, it relates to a recycled paving machine for constructing recycled pavement.

Next, the present invention will be explained in detail using illustrated examples.

The drawing shows a recycled paving machine according to an embodiment of the present invention, in which a flame-type heating device 10 for heating the pavement is disposed at the bottom of a vehicle body 9 of a self-propelled vehicle 7. Wire lobes 12 hanging down from a winding drum 11 rotated by an elevating drive device are connected to the front and rear portions on both left and right sides of the vehicle, and the front portion of the heating device 10 and the vehicle body 9 are connected to the vehicle body 9 for steady resting. They are connected via a link 13.

At the rear of the heating device 10, a large number of steel protrusions 2 having a rectangular bar shape for scraping are fixed by welding or the like to the periphery of a cylindrical rotating body 1 extending in the left-right direction to form a rotary scraping member. Both ends of the rotary loosening member B are rotatably attached to the rear ends of arms 14 and 15, and one arm 14 has a rotary loosening member 6.
A hydraulic motor 16 for rotating the arms 14, 150 is fixed, and a rotation transmission mechanism is built-in.
The front end portion is fixed to the end portion of a connecting shaft 17 extending in the left-right direction, and the central portion of the connecting shaft 17 is rotatably fitted into a bearing 18, and the bearing 18 is fitted into a bracket 19 fixed to the vehicle body 9. On the other hand, it is pivotally mounted on a support shaft 20 that extends in the front-rear direction.

The intermediate part of the twisted arm 14.15 and the vehicle body 9 are connected via lifting hydraulic cylinders 21.22, and when each hydraulic cylinder 21.22 is simultaneously expanded and contracted, the rotating loosening member 6 is moved parallel to the vertical direction. When moved and extending or retracting only one hydraulic cylinder, the arm 14.15 and the connecting shaft 17
Since the holding frame 26 consisting of is rotated around the support shaft 20, the angle of the rotary scraping member 6 with respect to the horizontal plane is adjusted. A pair of band-like scraping members 24 on the left and right are disposed so as to be narrow, and the scraping members 24 are composed of a retaining plate 25 and a scraping plate 26, and the retaining plate 25 has a strip in the vertical direction. A plurality of extending elongated holes 27 are provided, and a guide/connection pin 28 made of a bolt is inserted across the elongated holes 27 and the scraping plate 26, and the pin 28 prevents the scraping plate 26 from separating from the holding ff25. The scraping plate 26 is guided by the elongated hole 27 and the pin 28 so as to be movable in the vertical direction in FIG. 4 relative to the holding plate 25.

The retaining plate 25 and the collecting plate 26 are connected to each other via a height-adjusting hydraulic cylinder 29, and the upper end of the retaining plate 25 is pivoted to a supporting member 60 fixed to the lower part of the vehicle body 9. The bracket 32, which is pivotally connected to the holding plate 25 and the vehicle body 9, is connected to a rotating hydraulic cylinder 36.
When the raking member 24 is used for raking, the raking member 24 is rotated by the rotating piece hydraulic cylinder 66 to a substantially vertical position as shown in FIG. If member 24 is not used,
A scraping member 24 is attached to the lifting guide member 34 fixed to the rear of the vehicle body 9, which is rotated to a sideways position as shown in FIG.
An elevating frame 65 is fitted, and the elevating frame casing 5 and the vehicle body 9 are connected via an elevating fluid pressure cylinder 6, and a left helical screw 38 is rotatably and unbendably connected via a rotary joint 67. A spreading screw 40 consisting of a right-hand helical screw 69 is arranged so as to extend in the left-right direction behind the scraping member 24, and a holding member rotatably supports both ends of the spreading screw 40. 41 is fitted into the elevating frame 65 so as to be movable up and down. Also, the elevating frame 6
Four height adjusting screws are screwed into the female screw members 42 fixed to the left and right sides of the screw 5, and the lower ends of the four screws are rotatably connected to the holding member 41, and each of the holding members A hydraulic motor 44 for rotating the screw is fixed to 41, and can rotate the left helical screw 8 and the right helical screw 39 forward or backward, respectively, and can also rotate each independently at an arbitrary speed. At the rear of the spreading screw 40, a compacting and leveling blade 4 is arranged so as to extend in the left and right direction, and above the blade 4, an elevating frame 65 is arranged.
A height-adjusting screw 46 is screwed into a female screw member 45 fixed to the left and right sides of the cushioning member 4 made of a rubber material.
The grade 4 is connected to the end of the blade 4 via a hydraulic motor 49 and a vibrating device 50 having an eccentric body rotated by the hydraulic motor 49.

A spreading screw 5 consisting of a left helical screw 52 and a right helical screw 53 connected rotatably and unbendingly to a rotary joint 51 is disposed behind the blade 4 so as to extend in the left-right direction, and further Both ends of the spreader screw 5 are connected to an elevating frame filter 5.
Further, hydraulic motors 54 for rotating the screws are fixed to the left and right sides of the elevating frame filter 5, and are capable of rotating the left helical screw 52 and the right helical screw 5 in the forward or reverse direction, respectively. It is configured so that it can rotate independently at any speed.

The front ends of both arms of the planar U-shaped support frame 55 are pivotally connected to the vehicle body 9 by the horizontal shaft 5B, and between the left and right intermediate portions of the support frame 55 and the vehicle body 9, hydraulic cylinders 57 for lifting and lowering are connected. A screed 6 whose curvature can be freely adjusted and extends in the left-right direction is arranged at the rear of the spreading screw 5, and the left and right front parts of the frame 58 supporting the screed 6 are connected to the support frame 55. It is pivotally connected to a pivot shaft 59 extending in the left-right direction. In addition, a partition plate 6 is attached to the front part of the frame 58.
0 is fixed, and a female screw member 61 is attached to the left and right sides of the rear part of the support frame 58 by a support shaft extending in the left and right direction, and an inclination adjusting screw 62 is screwed into the female screw part 61. The lower end is rotatably connected to the rear part of the frame 58. 1. The curvature adjustment mechanism of the screed is well known, so the explanation thereof will be omitted. A hopper 6 for receiving the bituminous mixture is mounted and fixed, and a conveyor 64 consisting of a par feeder is arranged to extend from the bottom of the hopper 66 to the upper center of the spreading screw 5, and is fixed to the car body 9vc. and further the conveyor 64
A screw 5 for spreading the bituminous mixture is installed at the delivery end of the
A bitumen mixture supply section 8 consisting of a chute for dropping and supplying a droplet is provided near the center of the frame 65.
A fall guide member 65 is fixed to the rear part of the bituminous mixture supply section 8 to prevent the bituminous mixture that has fallen from the bituminous mixture supply section 8 from escaping behind the spreading screw 5.

When resurfacing an asphalt-paved road using the recycled paving machine of the above embodiment, the flat pavement body 66 is heated by a flame-type heating device (not shown) that moves ahead of the recycled paving machine. Then, the heating device 10 of the regenerated paving machine that runs following the heating device heats the surface discharge of the paving body 66, and then the heated surface side portion of the paving body 66 is rotated and loosened. A large number of protrusions 2Vc and 1 in the member B are scraped 1, and the paving material generated by the scraping is collected in the center in the width direction of the vehicle by the raking member 24, and the collected paving material is The spreading screw 40 at the front is used to spread the material to the left and right while making the temperature distribution and particle size distribution uniform, and then the compacting and leveling blade 4 is used to compact and level the spread. Do this.

Subsequently, a new bituminous mixture is continuously supplied from the bituminous mixture supply section 8 to the vicinity of the center of the rear spreading screw 5, and is spread from side to side by the screw 5. The blue mixture is spread evenly over the screed, and then wax pressure is applied by a width pressure roller that runs following the recycled paving machine to separate the loosened recycled paving material layer and the new bituminous mixture layer. Completed recycled pavement consisting of

When carrying out this invention, the shape of the loosening protrusion 2 may be any shape other than that shown in the drawings.

Alternatively, the scraping member 24 and the front spreading screw 40 may be omitted, and the paving material generated by scraping may be spread and compacted by the blade 4.

According to this invention, the rotary scraping member 6, the leveling blade 4, the leveling screw 5, and the screed 6, which extend in the left and right direction, are arranged sequentially from the front to the rear, and the vehicle 7 Since the bituminous mixture is moved forward and a new bituminous mixture is supplied from the bituminous mixture supply section 8 toward the screw 5, the surface side portion of the pavement where depressions such as ruts have been formed is removed to an appropriate depth. A loosened paving material is formed by being scraped by the protrusions 2 of the rotary scraping member B, and then the paving material is spread evenly by the blade 4, and then the spread paving material is A new bituminous mixture was supplied onto the material and spread by the screw 5, and then spread by the screed 6VC to form a recycled pavement, thus preventing depressions such as ruts. The effect of re-paving the pavement easily and with high efficiency can be obtained 1.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a side view of a recycled paving machine, Fig. 2 is a perspective view showing a rotating scraping member and its support structure, and Fig. 6 is a diagram of a scraping device. A plan view, FIG. 4 is a perspective view showing the state in which the raking part 44 is vertical, FIG. 5 is a perspective view showing the state in which the raking material 6 is placed horizontally, and FIG. A perspective view showing a leveling blade and its support structure,
Fig. 7 is a partially vertical front view showing the intermediate rotary joint of the spreader screw. Leveling blade, 5
is a spreading screw, 6 is a screed, 7 is a vehicle,
8 is a bitumen mixture supply unit, 9 is a vehicle body, 10 is a flame type heating device, 14 and 15 are arm arms, 16 is a hydraulic motor, 17
is a connecting shaft, 18 is a bearing, 20 is a support shaft, 21 and 22 are hydraulic cylinders for lifting and lowering, 2 is a holding frame, 24 is a strip-shaped scraping member, 29 is a hydraulic cylinder for height adjustment,
Filter 6 is a rotating fluid pressure/linda, filter 4 is a lifting guide member,
65 is a lifting frame, 6'6 is a lifting hydraulic cylinder,
67 is a rotary joint, 68 is a left helical screw, filter 9 is a right helical screw, 40 is a spreading screw, 44 is a rotating hydraulic motor, 48 is a buffer member, 50 is an excitation device, 5
1 is a rotary joint, 52 is a left helical screw, 56 is a right helical screw, 54 is a hydraulic motor for rotating the screw, 55
is a support frame, 57 is a hydraulic cylinder for lifting, and 63
Wow, 64 is a conveyor 0, 4 30 4 0

Claims (1)

[Claims] A leveling blade 4, which extends in the left-right direction, is provided behind a rotary loosening section 6 consisting of a rotating body 1 extending in the left-right direction and a large number of loosening protrusions 2 fixed around the rotating body 1. A spreading screw 5 and a screed 6 are arranged in sequence, and the rotating loosening member, blade 4 screw 5 and screed 6 are connected to the vehicle 7.
Recycled paving machine 3, characterized in that the machine is mounted on the machine and is provided with a bituminous mixture supply section 8 above the screw 5.