JPH0724410Y2 - Semi-rigid paver - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) This invention is a semi-rigid pavement used for semi-rigid pavement by infiltrating cement milk into the voids of open-grained asphalt concrete (hereinafter referred to as open-grained pavement). Regarding the machine,
In particular, the present invention relates to a semi-rigid paving machine suitable for paving a large area.

(Prior Art) Since a semi-rigid pavement machine performs semi-rigid pavement on an open-grained pavement surface with a large area such as roads and parking lots,
It is necessary to have the function of improving the work efficiency in addition to the basic performance of making the thickness of the cement milk uniform and allowing it to penetrate into the particle gaps of the open particle size pavement.

Conventionally, the work of uniformly spreading cement milk on an open-grained pavement surface has been performed by a dozen or so people using a rubber rake, and the cement roller is then compacted by a vibrating roller to spread the cement milk onto the open-grained pavement. It was inefficient because the construction was carried out so that it would penetrate into.

Therefore, in order to improve the efficiency of construction, a paving machine that reduces manpower has been devised.

For example, the device described in Japanese Utility Model Publication No. 61-26407,
A square frame is formed by two parallel rollers and two supporting members supporting both ends of the roller, and the roller is rotated by injecting cement milk into the frame to form a square frame on the open-grained pavement surface. The cement milk is moved linearly with the length of the roller as the width and applied to the inside of the pavement surface so that the cement milk is permeated to perform semi-rigid paving.

(Problems to be solved by the invention) Semi-rigid pavement The open-grained pavement is a large area, such as a road, parking lot, or wharf, and has many areas. A paving machine is desired.

(Means for Solving the Problem) This invention is to make cement milk supplied from a tank mounted on a trolley that is equipped with an engine and run at a slow speed, flow down uniformly from the side width gap to the entire construction width. A receiver, a scraping back machine that scrapes back the cement milk that flows sideways and tries to shift to one side, a leveling blade that evens out the thickness of the cement milk layer that has flowed down to the open grain size paving surface, and rotates while vibrating. A base frame with a vibrating roller that spreads cement milk and permeates the particle gaps of an open-grained pavement, a finishing leveling blade that finally scrapes the remaining cement milk, and a rubber band that separates both sides of the construction width. By constructing a semi-rigid pavement machine that can be towed by a trolley, the efficiency of semi-rigid pavement is improved.

(Action) While the cart is running at a slow speed (about 1 to 2 m / min) by the engine, when cement milk is sent from the tank loaded on it to the receiver, the cement milk filled in the receiver will be on the side of the receiver. From a slit-shaped gap having a constant width opened over the entire length, a uniform strip-shaped flow is made to flow down over the entire construction width.

The scraping back machine scrapes back the cement milk that has flowed sideways when the open particle size paving surface has an inclination, and scrapes back sideways.If the open particle size paving surface is not inclined, the scraping machine is stopped. .

After that, the leveling blades provided at the two locations evenly level the thickness of the cement milk, and the vibrating roller oscillates and compresses the cement milk while permeating it into the particle gaps of the open particle size pavement.

In this way, it flows down from the receiver to the open grain size pavement surface and has a thickness of 5c.
The cement milk that has formed a layer of about m gradually penetrates into the particle gap of the open particle size pavement and remains on the pavement surface in a very small amount, and finally the thickness is about several mm, but the finishing leveling blade leaves this residue. Stir the cement milk to eliminate unevenness.

The rubber strips on both sides move while slidingly contacting the open-granular pavement surface along with the movement of the carriage and the base frame, and hold the cement milk so that it does not extend beyond the predetermined width during this work.

In this way, it is possible to carry out semi-rigid pavement by allowing cement milk to penetrate evenly into the open-grained pavement surface in the width between the rubber bands on both sides, and to make a semi-rigid pavement. The open-grained pavement surface can be semi-rigid pavement.

(Embodiment) The drawings schematically show an embodiment of the semi-rigid paver of the present invention. Fig. 1 is a side view, Fig. 2 is a plan view, and Fig. 3 is each mechanism attached to a base frame except a rubber band. FIG. 4 is a side view showing parts, and FIGS. 4 and below are views showing each mechanism part.

As shown in FIGS. 1 to 3, the pavement machine is a truck 3 driven by the engine 1 to drive the wheels 2 and traveling at a slow speed of about 1 to 2 m / min.
In addition, cement milk is made to flow down evenly in the construction width direction, the cement milk is spread, and the base frame 4 having the respective mechanical parts attached thereto for permeating into the open-grained pavement surface is connected.

Next, each part which comprises this pavement machine is demonstrated individually.

1) Bogie 3 A tank 5 for containing cement milk is placed on the front part of the bogie 3, and a discharge pipe 6 passing through the inside of the bogie 3 allows an appropriate amount of cement milk to flow into a receiver 7 through a control valve (not shown). I have to. In addition to the engine 1, a reducer, a fuel tank, a generator, a hydraulic pump, and other devices are mounted on the carriage 3.

2) Base frame 4 As shown in FIG. 4, the base frame 4 has a square tube front part 4a pivotally attached to the rear part of the carriage 3 by a shaft hole 8 provided at the front end, and a slightly thin square tube rear part 4b. Are slidably fitted together, and the rear ends of the two side members that can be expanded and contracted by the hydraulic cylinder 9 are connected by the cross member 4c, and the rear end of the front portion 4a is connected by the hydraulic cylinder 10 to the carriage 3 It is connected to the rear part of.

When this paver is mounted on a large transport vehicle and transported to a construction site, a part of the rear part 4b is pulled into the front part 4a by the hydraulic cylinder 9 to shorten the length of the base frame 4, and the hydraulic cylinder 10 is used. Lift the rear part of the base frame to separate the mechanical parts from the ground to facilitate transportation.

The base frame 4 is provided on both sides with rubber bands 11 (Fig. 1) which slidably contact the open-grained pavement surface to prevent the cement milk from flowing out sideways so that the protruding length to the side can be adjusted. Inside the base frame, in the rear of the cement milk receiver 7 attached to the rear portion of the carriage 3, the scraping back machine 12, the first leveling blade 13, the first vibrating roller 14, the Second leveling blade 15,
A second vibrating roller 16 and a finish leveling blade 17 are attached to the rearmost portion.

3) Receiver 7 As shown in FIG. 5, the receiver 7 is a hydraulic cylinder whose one end is pivotally attached to the rear portion of the truck 3 by a shaft 18 and the other end is attached to the rear portion of the truck.
On the base frame 21 that is hanged freely by 19 in the vertical position,
It is a gutter-shaped one in which the front side (carriage 3 side) end is pivotally connected via a hinge shaft 22, both ends are closed, and an opening 23 having a constant width is formed on the rear side surface. The rear end of the receiver 7 has an arm 20 protruding from the rear part of the trolley.
It is suspended by a wire 24 connected to a hydraulic cylinder (not shown). The cement milk in the tank 5 is injected into the receiver 7 from the discharge pipe 6.

The opening 23 acts so that when the cement milk injected into the receiver 7 overflows, the flow thickness becomes even. When the cement milk is allowed to overflow from the upper edge of the receiver without providing an opening as shown in FIG. 6, the outflow thickness of the cement milk near the inflow from the pipe 6 becomes large as shown by hatching, The gap 23 acts to eliminate such inconvenience, although leaving this part and thus thinning will result in an uneven thickness of the cement milk layer flowing down the open grained pavement surface.

4) Scraping back machine 12 As shown in FIG. 7, the scraping back machine 12 is fitted in the U-shaped groove of the two guides 25, 25 which are installed laterally on the base frame 4 with the U-shaped groove facing each other. The leg plates 28 are attached to the four corners of the lower surface of the support plate 27 that is projected laterally of the base frame by the hydraulic cylinders 26, and the rubber blades 31 that move laterally through the endless chain are supported on the leg plates 28. Two endless chains 30 are wound between the shaft rods 29, 29 that are hung between the two sides with a sprocket of the same size, and both ends of a support fitting 32 fixed to each one side edge of the two rubber blades 31. Attached to the endless chains 30, 30 and one shaft rod 29
A reversible motor 33, which is supported by legs, is rotated by a chain and a sprocket transmission mechanism.

When the shaft rod 29 is rotated, the rubber blade 31 moves laterally with respect to the base frame 4 in a state of being close to the pavement surface, so that the open-grained pavement surface has a lateral inclination and the cement milk flows laterally. When there is a tendency to flow, the motor 33 is operated to move the rubber blade 31 through the endless chain 30 toward the upper side of the slope, and the two rubber blades 31 alternately scrape up the upper layer of the cement milk to cement. Milk can be prevented from being unevenly distributed below the slope. If the inclination direction of the open grain pavement surface is opposite, the motor 33 is rotated in the reverse direction. When the pavement surface is not inclined, the motor 33 is stopped.

When the construction width of the semi-rigid pavement surface is changed to large or small, the hydraulic cylinder 26 pushes or retracts the support plate 27 from the guide 25 to adjust the moving range of the rubber blade 31. It should be noted that if two sets of the scraping backing machines 12 are provided so that the cement milk can be drawn up to the central portion of the base frame 4, one scraping backing machine can be used when the lateral inclination of the open particle size paving surface is in the opposite direction. In the case of driving the car and tilting in both directions in a semi-cylindrical manner, it is possible to operate so as to drive both scraping machines.

5) Leveling blades 13 and 15 The first and second leveling blades 13 and 15 have the same structure.
It is constructed as shown in FIG.

A groove metal fitting 34 and a flat metal fitting 35, which are fitted to the side members of the base frame 4, are bolted to fix the base frame 4 in between, and the outer pipe is attached to the lower surface of the flat metal fitting 35.
36 is welded, and the inner pipe 37 is fitted to this, and the fitting length is adjusted so that it can be fixed by the wing bolt 38. A guide plate 39 is welded to the lower end of the inner pipe 37, and a long rectangular pipe 40 for connecting a guide plate similarly attached to the other side member of the base frame is welded to one side of the guide plate 39. A mounting piece 41 is welded to the lower surface of the rectangular tube 40, and a rubber blade 42 is screwed thereto. On the other side of the guide plate 39, a short-angle tube 43 that can slide in parallel with the long-angle tube 40 is supported by the bent edges 39a and 39b of the guide plate 39, and the projecting length of this short-angle tube from the guide plate 39. Adjust the height so that it can be fixed with the wing bolt 44. A rubber blade 45 is attached to the lower surface of the short angle tube 43 in the same manner as the long angle tube 40.

The amount of proximity of the rubber blades 42, 45 to the pavement surface is equal, and the amount is determined by operating the butterfly bolt 38 in consideration of the thickness of the cement milk layer spread on the pavement surface.

The first leveling blade 13 is leveled so that the cement milk layer flowing out of the receiver 7 has a uniform thickness (about 5 cm), and the second leveling blade 15 is the first vibrating roller 14. The distribution of cement milk after rolling and permeating the pavement gap to reduce the thickness is averaged again so as to be averaged again, and the second vibrating roller 16 rolls the distribution.

6) Vibrating rollers 14, 16 The first and second vibrating rollers 14, 16 have the same structure,
Configured as shown.

Each vibrating roller has two unit rollers 14 as shown in FIG.
a, 14b, 16a, 16b are arranged vertically and arranged in parallel in the front and rear, and each is moved laterally with respect to the base frame 4 by the hydraulic cylinder as shown by the arrow to adjust the spread width of the cement milk. It is supposed to do.

The structure of the vibrating roller is as shown in Figs. Unit rollers 14a, 14b, 16a, 1 forming the vibrating rollers 14, 16
6b has the same structure, one of which is the unit roller 14a.
This will be described below with reference to FIGS.

On the base frame 4, two guide metal fittings 46, 46 having concave grooves facing each other are attached in parallel so as to be hung between the side members, and a horizontal plate 50 is formed in an open box shape on the inside thereof. Roller support 47 with fixed
Of the hydraulic cylinder 49, one end of which is pivotally attached to the base frame 4, is pivotally attached to the roller support body 47, and the roller support body 47 is attached to the base frame. It can be moved laterally.

The roller 51 has its shaft 51a supported by a bearing 52, and
2 is connected to the cover 53. Cover 53 is rubber block 54
A vibrator 55 is fixed on the cover body 53 and is attached to the horizontal plate 50 via the. Therefore, when the vibrator 55 is driven to vibrate the cover 53, the roller 51 vibrates and rolls.

The two unit rollers of the vibrating rollers 14a, 14b and the like are arranged in a row so that the vibrating rollers have flexibility corresponding to the unevenness of the pavement surface. Therefore, the flexibility can be further increased by arranging three or more unit rollers to be cascaded.

7) Finishing smoothing blade 17 The finishing smoothing blade 17 is finally modified so as to prevent uneven distribution of the cement milk spread and permeated by the second vibrating roller 16 on the paved surface. To obtain a uniform semi-rigid pavement. Most of the cement milk remaining at this position has penetrated into the particle gaps of the open particle size pavement, and therefore has a small amount of a few m / m.

As shown in FIGS. 13 to 15, the finish leveling blade is composed of two parts and is supported by four arms 56 and 57, one end of which is attached to the rear portion of the base frame, so that the mounting position can be adjusted.
The rubber blade 58 has a front plate 59 whose both edges are bent and is fixed to the upper surface, and is housed in a long case 60 having a quadrangular cross section so as to be vertically slidable. A long hole 60a is formed on the lower surface of the case 60 to project the blade 58. On the top of the case 60,
A small cylinder 61 that covers multiple upper surfaces is fixed and a compression spring 62 is
And the elastic force is applied to the blade 58 via the front plate 59 so as to project from the long hole 60a. The arm 56 allows the outer tube 56a and the inner tube 56b to be fitted to each other so that the length can be expanded and contracted, and the nut can be fixed to the outer tube 56a and the butterfly bolt 63 can be screwed to fix the fitted state of both tubes. I am trying.

The end portion 56c bent downward of the inner pipe 56b is fitted into the small tube 61,
The wing bolt 64 screwed to the end portion 56c connects the end portion 56c and the small tube 61. The front end portion of the outer tube 56a is pivotally attached to a support fitting 65 attached to the rear portion of the carriage. Arm 57
Although the structure is the same, in this case, the outer pipe 57a itself is fixed to the rear part of the carriage and the inner pipe 57b is expanded and contracted in one direction.

In order to change the construction width, when changing the width at which the finishing leveling blade 17 levels out the paved surface, the small tube into which the inner tubes 56b and 57b are expanded and contracted, the arm 56 is rotated, and the end 56c of the arm 56 is fitted. The position of both blades 58 can be changed by changing 61 or the like, which can even the pavement surface and change the width.

The coupling tool 66 shown in FIG. 13 exemplifies a structure in which the two small cylinders 61 closest to the tip end portions of the two blades are coupled to each other to strengthen and smooth the finish and smooth the blade support. Bend the screw metal fitting 66a of the above into a tubular shape that fits into the small cylinder 61, and adjust the distance between both tubular parts to the distance between both small cylinders to be joined, It fits and joins two blades.

8) Rubber band 11 The rubber band 11 is on the side of the base frame 4 and regulates the spread width so that the cement milk does not leak out of the predetermined construction width. As shown in FIGS. Is configured.

A rubber band provided over the entire length of the base frame 4 on the side of the base frame.
11 is divided into short unit rubber bands 68 of about 50 cm, and these are connected by a hinge.

The unit rubber band 68 is formed by connecting an elongated rubber piece 80 of the same length to the lower surface of a front plate 67. A support rod 69 is pivotally attached to the front plate 67 and fixed to the base frame 4 as shown in FIG. Sliding tube 71 that fits into square tube 70
The mounting plate 72 welded to the end surface of the and the upper portion of the support rod 69 are bolted and mounted. The hole through which the bolt is inserted is a long hole so that the supporting position of the unit rubber band 68 can be adjusted up and down. As for mounting the support rod, as shown in Fig. 18, a circular pipe 73 is welded to the front plate 67, and the circular pipe 73 is fitted to the circular pipe 74 with a slightly larger diameter welded to the sliding pipe 71 in Fig. 17. The mating position with the butterfly bolt
It may be fixed at 75, as shown in Fig. 19.
A circular tube 73 connected to a front plate 67 is fitted to a guide tube 76 welded to 71, and a screw rod 78 that can be rotated by a handle 77 is screwed into a screw hole formed in the upper portion of the circular tube 73 to form a unit rubber band. It is also possible to adjust the height of the. The unit rubber bands are connected by pivoting the ends of the front plate 67 with hinges 79.

The support by the support rod 69, the tubes 73, 74, etc. as described above does not need to be performed for all the unit rubber bands 68, and the unsupported unit rubber bands are also arranged in a vertical row on the side of the base frame for connection by the hinge 79. Due to its own weight, the required amount of cement milk leakage can be prevented.

(Effect of the device) (1) Pull the base frame 4 by the trolley and travel at a slow speed to receive the cement milk discharged from the tank 5 in the receiver 7 and average it over the entire construction width between the rubber bands 11 on both sides. And then the three sets of leveling blades 13, 15, 17 and two sets of vibrating rollers 14, 16 spread the cement milk evenly within the working width and permeate the particle gaps of the open particle size pavement for semi-rigidity. Since paving is performed, there are many parts that perform the work automatically, and manpower can be saved.

(2) Therefore, a large area of semi-rigid pavement can be efficiently constructed.

(3) Since the cement milk receiver 7 is designed to allow the cement milk to flow out from the opening 23 provided beside the receiver,
The thickness of the spilled milk can be made uniform over the entire width.

(4) The scraping back machine 12 can prevent the cement milk from deviating in the inclination direction even if the open-grain-size paving surface has an inclination.

(5) The cement milk can be spread while being vibrated by the vibrating rollers 14 and 16, so that the cement milk can satisfactorily penetrate into the gaps of the open particle size pavement.

(6) Since one vibrating roller is configured by arranging a plurality of unit rollers in a row, the vibrating roller can be made flexible, and even if the paving surface has irregularities, the axis line is bent accordingly. The contact between the roller and the paved surface can be maintained.

(7) The cement milk is leveled every time it is spread by another spreading mechanism by the leveling blades 13, 15 and 17 and the distribution of the cement milk is averaged. The degree of milk penetration can be made uniform.

[Brief description of drawings]

1 to 3 schematically show an embodiment of the semi-rigid paver of the present invention,
FIG. 1 is a side view, FIG. 2 is a plan view, FIG. 3 is a side view showing each mechanism attached to a base frame except a rubber band, FIG. 4 is a perspective view of the base frame, and FIG. Is a perspective view of the cement milk receiver, FIG. 6 is a schematic diagram showing the outflow thickness of the cement milk when the opening 23 is not provided, FIG. 7 is a perspective view of the scraper, and FIG. 8 is a leveling blade. FIG. 9, FIG. 9 is a perspective view showing the support structure of the leveling blade, FIG. 10 is a plan view showing the outline of the arrangement of the vibrating roller, and FIG. 11 is a vertical sectional front view of the vibrating roller.
12 is a side view of the vibrating roller, FIG. 13 is a perspective view of the finishing leveling blade, FIG. 14 is a sectional view taken along line AA of FIG. 13, FIG. 15 is a longitudinal sectional view of the small tube 61, and FIG. Is a side view of the rubber band, FIG. 17 is a perspective view of the unit rubber band supporting portion, FIG. 18 is a side view showing another structure of the supporting portion, and FIG. 19 is a vertical cross section showing another structure of the supporting portion. It is a figure. 1: engine, 2: wheel, 3: trolley, 4: base frame, 4a: front part, 4b: rear part, 4c: cross member, 5: tank, 6: discharge pipe, 7: receiver, 8: shaft hole,
9 and 10: hydraulic cylinder, 11: rubber band, 12: scraping machine, 13:
First leveling blade, 14: First vibrating roller, 14a, 14b:
Unit roller, 15: second leveling blade, 16: second vibrating roller, 16a, 16b: unit roller, 17: finishing leveling blade,
18: Axis, 19: Hydraulic cylinder, 20: Arm, 21: Board, 22: Hinge, 2
3: Opening, 24: Wire, 25: Guide, 26: Hydraulic cylinder, 27: Support plate, 28: Leg piece, 29: Shaft rod, 30: Endless chain, 31: Rubber blade, 32: Support bracket, 33: Reversible motor, 34: Groove metal fitting, 35:
Flat metal fittings, 36: outer tube, 37: inner tube, 38: butterfly bolt, 39: guide plate,
39a, 39b: Bend edge, 40: Long angle tube, 41: Mounting piece, 42: Rubber blade, 43: Short angle tube, 44: Butterfly bolt, 45: Rubber blade, 46: Guide fitting, 47: Roller support, 48: flange, 49: hydraulic cylinder, 50: lateral plate, 51: roller, 51a: shaft, 52: bearing, 53:
Cover, 54: Rubber block, 55: Vibrator, 56: Arm, 56
a: outer tube, 56b: inner tube, 56c: end, 57: arm, 58: blade, 5
9: Front plate, 60: Case, 60a: Long hole, 61: Small tube, 62: Compression spring, 63, 64: Butterfly bolt, 65: Support fitting, 66: Coupling tool, 66a:
Screw fitting, 67: Front plate, 68: Unit rubber band, 69: Support rod, 70: Guide square pipe, 71: Sliding pipe, 72: Mounting plate, 73, 74: Circular pipe, 75: Butterfly bolt, 76: Guide tube, 77: handle, 78: screw rod, 79: hinge,
80: An elongated rubber piece.

Claims (1)

[Scope of utility model registration request] 1. A receiver for causing cement milk supplied from a tank mounted on a trolley, which is equipped with an engine and running at a slow speed, to flow down uniformly from a gap having a constant width on the side surface to the entire construction width.
A scraping back machine that scrapes back the cement milk that flows sideways and tries to deviate, a leveling blade that evens out the thickness of the layer of cement milk that has flowed down the open grain size paving surface, and a cement milk that rotates while vibrating A base frame with a vibration roller that spreads and penetrates into the particle gaps of the open particle size pavement, a finish leveling blade that finally scrapes and smooths the remaining cement milk, and a rubber band that separates both sides of the construction width. A semi-rigid pavement machine that is pulled by.