JPS6128045B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a paving device for paving materials such as asphalt or concrete.

Flatness of the paved surface is sometimes strongly required not only for tennis courts, vehicular stadiums, dams, and other special pavement fields, but also for general roads. In such cases, there is currently no other way than to use conventional road paving equipment as is, or to line up formwork and finish using a machine such as a trowel using the surface as a reference, or by hand leveling. . However, according to the first method, since the weight of the equipment is heavy, it requires a strong supporting force of the paved surface, and it is difficult to form an unnecessarily strong paved surface and is difficult to implement in a cramped space. There are drawbacks. In addition, according to the second method, it takes time to install the formwork, and the flatness is affected by the way the formwork is installed and is not necessarily good.Furthermore, the third method also has high labor costs. It also requires a long time.

In view of the current situation, the present invention provides a paving device for paving bodies in which flatness is particularly required.
While moving the paving device in the X-axis direction on the planned paving surface, the paving material is dropped in front of the paving device, and the paving material is compacted by the following paving device, and the Y-axis is perpendicular to the X-axis. The paving device is moved in the X-axis direction while the paving device is suspended from the paving device, and the falling position of the paving material is also moved by the amount of movement, and the paving device is moved again in the X-axis direction as described above. This is a paving device that drops lumber and compacts it with a paving device, and sequentially lays paving bodies in a strip.

For convenience of explanation, one embodiment of the apparatus of the present invention will be described below with reference to the drawings.

Referring to FIGS. 1 to 3, a pair of rails 1, 1 are laid at both ends of the planned paved surface E in the longitudinal direction (X-axis direction), and a shift rail running on the rails 1, 1 is installed. A girder 4 is mounted on the chassis 3, 3 having wheels 2, 2, and a girder 4 is fixed over the chassis 3, 3, and a paving device 5 movable in the longitudinal direction is suspended on the girder 4. It has been done. The girder 4 consists of a rectangular frame body, and is equipped with a fixed belt conveyor device 6 on the upper stage and a movable belt conveyor device 7 that can freely move in the longitudinal direction of the girder 4 on the lower stage, and these devices are connected to an appropriate power unit 8. It is driven by a motor or the like (not shown). The movable belt conveyor device 7 is moved by an appropriate means, such as a chain or a cylinder, and in the embodiment, as shown in FIG. At the same time, the movable belt conveyor device 7 is provided with a frame 11 so that the frame 11 can slide on its rollers 10, and the chain 11' of the frame 11 is
Sprockets 12, 12 are connected endlessly, and the chain 11' is fixed near both ends of the girder 4.
The sprockets 12, 12 are provided so that they can be freely rotated in forward and reverse directions using a motor or the like (not shown).
In this case, it is necessary to form a gap between the rollers 10 so that the paving material can fall downward through the gap. Further, the horizontal movement of the frame 11 may be achieved by a configuration of rails and rollers supported by the lower stage of the girder 4, or a sliding protrusion and a sliding groove, and various moving means can be considered. On the other hand, drive devices 13, 1 are mounted on the chassis 3, 3.
3, respectively, and the chassis 3, 3 can run automatically. At the end of the fixed belt conveyor device 6 on the rail 1 side, there is a hopper 9 into which paving material is to be charged.
In addition, by providing an input hole 14 on the girder 4 near the other end, when the paving material received in the hopper 9 is conveyed by the fixed belt conveyor device 6 and transferred to the other end, it is transferred from the input hole 14 to the lower stage. onto the movable belt conveyor device 7. The paving device 5 includes sliding rollers 16, 16 that engage with the side rails 15, 15 of the girder 4, and a pressure roller 17, and the pressure roller 17 is vertically movable and height adjustable. That is, as shown in FIG.
9 is engaged to make the slide frame 19 vertically movable. A pivot rod 20 is provided at the lower end of the slide frame 19 and extends horizontally.
The shaft 21 of the pressing roller 17 is pivotally supported at the outer end of the slide frame 19, and a turnbuckle 22 is provided to connect the upper end of the slide frame 19 and the tip of the shaft 21 to strengthen the triangular shape.
The turnbuckle 22 allows fine adjustment of the height of the pressing roller 17. Further, a bevel gear 23 is rotatably provided at the upper end of the column 18, a screw shaft 24 is provided on the bevel gear 23, and the screw shaft 24 and the slide frame 19 engage with each other. The bevel gear 23 engages with a bevel gear 25 fixed to the output shaft of the motor M. Therefore, when the bevel gear 25 rotates, the slide frame 19 moves up or down within a certain range. Slide frame 19 is bevel gear 2
5, that is, the pressure roller 17
is raised above the same height as the planned paved surface to prevent it from rolling on the planned paved surface. On the lower surface of this paving device 5, a tamper screed 26 is suspended from a slide frame 19 in front of the pressing roller 17 in the advancing direction. The tamper screed 26 is an integrated structure of a tamper and a screed, and spreads and beats the paving material falling from the belt conveyor device 7. and,
This tamper screed 26 is also integrated with the pressing roller 17 so that it can freely move up and down.
It is desirable that the height can be adjusted above the planned pavement surface. In order to do this, a support frame may be provided at the lower end of the slide frame 19 to suspend and support the tamper screed.

Note that 27 indicates a deck, on which a worker can accompany the deck during paving work, inspect the paving device 5, etc., and monitor the progress of the work. Furthermore, although the pressure roller 17 was provided only on one side of the paving device 5,
Depending on the design convenience, it may be provided on both sides, and in that case, it is desirable to also provide the tamper screed 26, and if necessary, the structure may be symmetrical.

Next, to explain the pavement construction using the apparatus of this embodiment, referring to FIGS. 8 to 11, first, as shown in FIG. However, in this case, the movable belt conveyor device 7 is first advanced below the fixed belt conveyor device 6 (Fig. 8), and the left end is positioned at least directly below the input hole 14 to receive the paving material being fed out. , and the paving device 5 is moved and placed on the right end side of the movable belt conveyor device 7, respectively. Next, the fixed belt conveyor device 6 is rotated to the left, while the movable belt conveyor device 7 is rotated to the right. Therefore, when paving material such as asphalt mixture is put into the hopper 9, a predetermined amount is transferred from the hopper 9 to the belt conveyor 6'.
It is fed upward, falls onto the belt conveyor 7' of the movable belt conveyor device 7 from its left end, and is conveyed to the paving device 5 side. The paving material conveyed to the paving device 5 falls onto the planned paved surface E below from one end of the belt conveyor 7', the paving material delivery end. Next, the drive devices 13, 13 of the chassis 3, 3 are operated to move the girder 4 in parallel along the rails 1, 1. When girder 4 moves,
The paving device 5 suspended from this also moves together. Therefore, the tamper screed 26 spreads and hammers the paving material that has fallen onto the planned paved surface E, and the pressing roller 17 compacts the paving material. In this case, the pressure roller 17 is suspended on the paving device 5 and fixed at a constant height above the planned paved surface E, and is suspended on the girder 4 so as to receive a reaction force. Paving material that has been leveled and hammered can be finished as a uniform plane. In this way, by moving the chassis 3, 3 at an appropriate speed and constantly feeding out a predetermined amount of paving material from the hopper 9, the rails 1,
A strip-shaped pavement surface C is formed parallel to the roller 1 and having a width equal to the width of the pressure roller 17. Thus,
A belt-shaped paving surface C parallel to the rails 1, 1 may be sequentially paved from the right end to the left end of the planned paved surface E, overlapping the respective side edges. That is, when the first row of strip-shaped paving surface C parallel to the rails 1, 1 is completed, the girder 4 is returned to its original position to supply new paving material, and the paving device 5 is moved to the girder by the width distance of the pressing roller 17. 4 in the lateral direction, and the second row is paved in the same manner as the first row. In this way, they were laid one after another,
As shown in FIG. 9, when reaching approximately the center of the planned paved surface E, the movable belt conveyor device 7 is pulled out to the left from the fixed belt conveyor device 6 to the maximum extent, so that the paving material cannot be conveyed. The 10th
As shown in the figure, the movable belt conveyor device 7 is retracted to the right side so that the arrangement is substantially the same as that shown in FIG. 6, the direction of rotation is reversed counterclockwise, and the paving device 5 is arranged below its delivery end. Thereafter, the paving device 5 and the movable belt conveyor device 7 are sequentially moved to the left to pave each row as described above (FIG. 11). In this way, a belt-shaped paved surface C running parallel to the rails 1, 1 from the right end to the left end of the planned paved surface E is paved with the side edges overlapped.

As can be seen from the above description, the method of the present invention supplies a certain amount of paving material while moving the paving device in the X-axis direction at a certain height above the planned paved surface, and spreads it uniformly on the planned paved surface. The method is to form a strip-shaped paving surface by leveling and compacting immediately after that with a pressure roller, and then move the paving device in the Y-axis direction to sequentially form the paving surface. In addition, the constant height on the planned paved surface keeps the height of the pressing roller 17 in the paving device 5 constant with reference to the girder 4 suspended and supported on the chassis 3, 3 running on the rails 1, 1. Therefore, the paved surface C is finished as a uniform flat surface.

According to the present invention described above, X of the planned pavement surface
The paving material is dropped and laid down while holding a constant amount while moving arbitrarily in the axial direction and the Y-axis direction, and the paving material is immediately compacted with a pressure roller to continuously form a band-shaped paving surface. The paving surface is finished to be a uniform flat surface. Moreover, according to the present invention, regardless of whether or not the ground of the planned paved surface has been compacted to create a flat foundation, even if the ground is extremely uneven, a uniform and flat paved surface can be created. It is extremely effective for paving tennis courts, tracks for stadiums, and stadiums for other vehicles. In addition, since conventional heavy machinery is not used, fewer labor personnel such as operators are required, resulting in savings in labor costs. Furthermore, in the present invention, the X-axis and the Y-axis are not limited to straight lines but may also be curved lines, so the paving is not limited to straight sections, and it is also possible to pave curved sections such as corner sections. This has the effect of being able to pave both straight and curved sections as a series.

[Brief explanation of the drawing]

Fig. 1 is a perspective overall schematic diagram showing a paving device according to an embodiment of the present invention, Fig. 2 is a plan view, Fig. 3 is a front view, Fig. 4 is a plan view showing the paving device, and Fig. 5 is a pressing A front view of the roller side, Fig. 6 is a side view shown together with the girder, Fig. 7 is a longitudinal sectional view showing the engagement relationship with the paving device and the girder, and Figs. 8 to 11 are the fixed belt conveyor device and the movable belt. It is an explanatory view showing an operation of a conveyor device. 1...Rail, 2...Traveling wheels, 3...Car chassis,
4... Girder, 5... Paving device, 6... Fixed belt conveyor device, 7... Movable belt conveyor device, 8... Power unit, 9... Hopper, 10
... Roller, 11 ... Frame, 12 ... Sprocket, 13 ... Drive device, 14 ... Input hole, 15
... Side rail, 16 ... Roller, 17 ... Pressing roller, 18 ... Column, 19 ... Slide frame, 20
... shaft support frame, 21 ... shaft, 22 ... turnbuckle, 23, 25 ... bevel gear, 26 ... tamper screed, 27 ... deck.

Claims (1)

[Claims] 1. A girder mounted on a chassis that can run freely on a pair of rails laid on a planned paved surface, and a fixed belt conveyor device mounted so as to be freely drivable at a fixed position on the upper stage of the girder. , a movable belt conveyor device provided at the lower stage of the girder of the belt conveyor device so as to be movable in the longitudinal direction of the belt conveyor, and a movable belt conveyor device that receives the paving material conveyed from the fixed belt conveyor device and fed out by the movable belt conveyor device to a predetermined thickness and width. A paving device to be laid on the planned paved surface, and a paving device having a pressing roller movably suspended in the longitudinal direction of the girder and receiving a reaction force on the girder. paving equipment. 2. The above-mentioned paving device has a slide frame attached to a column that can slide horizontally with respect to a girder so that vertical movement can be adjusted freely, and a screed and tamper for pounding and leveling the paving surface are integrally assembled at the bottom of the slide frame. 2. A paving device for a paving body according to claim 1, characterized in that a pressing roller is pivotably attached to the pavement via a pivot rod.