JPH0726401Y2 - Rough surface finishing equipment for concrete pavement - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) In order to prevent the scattering of the leitance of concrete paved roads and to improve the slip resistance, the present invention brushes the paved road surface to expose aggregates and The present invention relates to a device for surface finishing.

(Prior Art) As is well known, the surface of concrete has a dense and slippery property.

Therefore, when paving with concrete, it is common to make a broom before the paved concrete hardens, but if necessary, spray a setting retarder and then brush to wash or scrape the surface layer part. By taking a so-called rough surface finish, the aggregate is exposed and slip resistance is enhanced.

However, the rough surface finishing with a broom is extremely inefficient because the work is done manually, and it is difficult to secure the flatness and uniformity of the finish, and there is a drawback that a considerably skilled worker is required. It was very difficult to remove the latance.

Therefore, when the rough surface finishes over a wide range, a mechanical rough surface finish method by brushing is adopted. By the way, this device for mechanically roughening the surface is equipped with a traverse control platform that can be reciprocally operated in the width direction of the road surface on a vertical traveling frame that runs along the concrete paved road surface. It is configured by equipping a cylindrical horizontal shaft type rotating brush that is in contact with the paved road surface in a parallel state and is driven to rotate.

That is, the horizontal shaft type rotating brush is pulled on the paved road surface by moving the traverse operation platform, and in the process, brushing is performed in the width direction of the paved road surface to expose the aggregate and roughen the surface. is there.

(Problems to be solved by the invention) However, the horizontal shaft type rotary brush in the conventional device has four guide casters 50, 50, 50 at the front, rear, left and right positions of the rotary brush C as shown in the conceptual diagram of FIG. A plane shape in which 50, 50 are arranged is horizontally supported by a central portion of a support frame 51 having a quadrilateral shape. The supporting frame 51 is connected to the traverse operation table B with the connecting member 52 in a suspension system. That is, the rotating brush C is supported by four guide casters 50, 50, 50, 50 on the front, rear, left and right, and the levels of the front, rear, left and right guide casters 50, 50, 50, 50 are not shown in the drawing, but individually adjusted. By doing so, the parallelism of the rotating brush C to the paved road surface d is adjusted.

The brushing depth of the rotating brush C with respect to the paved road surface d, that is, the cutting depth t is the guide caster.
The difference between the ground contact height H of 50, 50, 50, 50 with respect to the paved road surface d and the ground contact height h of the rotating brush C, H-h = t, is used for regulation. I.e. guide casters 50,50,5
If the level H of 0,50 is set high, the cutting depth t becomes relatively deep.

Therefore, in the case of the conventional device, if the level adjustment of the four guide casters 50, 50, 50, 50 is not performed uniformly, the parallelism of the rotating brush C with respect to the paved road surface d is disturbed, and as a result, flat brushing is performed. It had the drawback that it could not be maintained.

Furthermore, the rotating brush C has four guide casters 50, 50, 5
Since it is towed by the traverse operation platform B integrally with the support frame 51 having 0, 50, at that time, a moment acts on the support frame 51 with the guide casters 50, 50 corresponding to the front wheels of the support frame 51 as fulcrums. As a result, the rear wheel guide casters 50, 50 are lifted, and the support frame 51 itself receives the tilting motion.

Therefore, the rotating brush C axially supported by the support frame 51 is inevitably lifted, and a difference is generated between the rotating brush C and the initial ground contact condition with respect to the paved road surface d, and as a result, the uniformity of the cutting depth due to the brushing is uneven. That is, there is a problem in that it is difficult to maintain the brushing with a uniform cutting depth, and it is difficult to maintain the brushing with high uniformity and flatness. Also, according to other methods, there are those with a rigid traverse operation platform that makes the deflection zero, but the manufacturing weight is also large,
It has the drawback of increasing costs.

The present invention is intended to provide a rough surface finishing device by brushing which solves such a drawback.

(Means for Solving the Problem) As a means for achieving the above-mentioned object, the feature of the device configuration according to the present invention is that first, the left and right of a support frame for horizontally supporting a horizontal shaft type rotating brush is supported. A pair of guide casters with adjustable levels were attached to both sides.
That is, the pair of guide casters supports the rotating brush.

Then, both sides of the front end of the support frame are connected to the support brackets hung on both sides of the traverse operation platform with connecting pins, and the rear end of the support frame is slightly suspended from the center of the support frame to the lower surface of the traverse operation platform. The piston rod of the hydraulic cylinder was connected via a chain.

Further, as the level adjusting means of the guide caster, an electric level adjusting mechanism in which an electric motor is linked to the gear transmission mechanism is configured. Further, a slime box for collecting slime scraped off by a rotating brush is attached to the rear end side of the support frame, and a reversing operation mechanism composed of a hydraulic cylinder is incorporated between the support frame and the slime box. There is something I did.

(Operation) In this invention, first, a pair of guide casters are provided on the left and right of a support frame that horizontally supports a horizontal shaft type rotary brush.
Since the pair of guide casters supports the rotating brush and grounds it on the pavement surface, it is extremely easy to maintain the parallelism of the rotating brush to the pavement surface regardless of the bending of the traverse operation platform. That is, the parallelism can be easily adjusted only by adjusting the left and right guide caster levels, and the maintenance is surely maintained.
Therefore, when the paved road surface is brushed, its flatness is ensured, and a rough surface finish with high finishing accuracy is possible.

Furthermore, since the rotating brush is grounded on the paved road surface by the two-point support on both left and right sides, even if the rotating brush is pulled and moved together with the supporting frame by operating the traverse operation platform, a moment acts on the supporting frame and the rotating brush. There is nothing to do. That is, the support frame and the rotating brush are not affected by the floating. Therefore, it is possible to ensure uniform brushing.

(Embodiment) Further, the configuration of the present invention will be specifically described based on an embodiment shown in the drawings.

FIG. 1 shows a traverse operation platform B that is operated to move in the width direction of the paved road D (front and rear direction in the drawing) on a longitudinal frame A that is self-propelled in the traveling direction of the paved road D. A front view of a device in which a horizontal axis type rotating brush C is horizontally mounted on a traverse control console B, and FIG. 2 shows Y- in FIG.
It is a Y-line longitudinal side view.

First, as shown in FIGS. 1 and 2, the longitudinal frame A includes rails 1 laid on the left and right shoulders of the paved road D.
It runs on 1 and has two vertical beams 2 and 2 on the left and right.
Similarly, the two horizontal beams 3 and 3 are crossed at a right angle, and the front and rear ends of the vertical beams 2 and 2, respectively,
4 having wheels 4 and 4 traveling on said rails 1,1
It is constructed by supporting legs 5 and 5 of the book.

In FIG. 1, 6 shown at the lower end portion of the left supporting leg 5 is
A drive motor as a self-propelled means of the longitudinal frame A,
The torque from the drive motor 6 is transmitted to the wheels 4 by a chain drive. Further, the adjustment handles 7 provided on the upper ends of the supporting legs 5 of the vertical frame A adjust the levelness of the vertical frame A itself on the rails 1 and 1, and the rotary brush C described later.
This is for adjusting the approximate parallelism with respect to the pavement road surface d.

Next, as shown in FIGS. 1 and 2, the traverse operation platform B is provided with transverse beams 3 and 3 which form the longitudinal frame A.
It is mounted so that it can run as a guide rail.

That is, as shown in FIG. 1, upper and lower two guide rollers 8 and 8 are attached to the left and right sides of the traverse operation platform B, and the lateral beams 3 and 3 can be held by the guide rollers 8 and 8 for traveling. Is configured as follows. As the traveling means, as shown in FIG. 2, a motor 9 is installed on the traverse operation platform B, a sprocket gear 10 is attached to the output shaft side of the motor 9, and the other side of the lateral beam 3 is provided between the left and right ends. A drive chain 11 is stretched, the sprocket gear 10 is meshed with the drive chain 11, and the motor 9 is driven in forward and reverse directions so that the traverse operation platform B can be moved in the left and right directions. There is. 2 and 12 shown in FIG. 2 are the drive chains 11
It is an auxiliary sprocket that meshes with.

Next, a support frame 13 for axially supporting the rotating brush C in a horizontal state.
On both sides as shown in FIG.
Equipped with support legs 15 and 15 with 14.

Then, the front end side (left side in FIG. 2) of the support frame 13 is connected to the lower ends of the support brackets 16 and 16 hung from the left and right sides of the traverse operation platform B by connecting pins 17 and 17, respectively. .

A little closer to the rear end than the center (toward the right side in Fig. 2)
Is connected to the piston rod 18a of the hydraulic cylinder 18 which is also hung from the traverse operation platform B via the chain 19, and when the piston rod 18a is contracted, the support frame 13 tilts upward with the connecting pin 17 as a fulcrum and rotates. The brush C is configured to be separated from the paved road surface d accordingly.

Therefore, when the piston rod 18a is extended in the opposite direction, the rotating brush C is connected to the connecting pin by its own weight including the support frame 13.
It tilts downward with 17 as a fulcrum and is grounded on the paved road surface d.

Next, the electric level adjusting mechanism for adjusting the levels of the guide casters 14 and 14 mounted on the left and right sides of the supporting frame 13 is constructed as shown in FIG. That is, the male screw 14b is engraved on the upper end of the support shaft 14a of the guide caster 14,
This male screw 14b is screwed into the rotary cylinder 20 engraved with the female screw 20a, and the bevel gear 21 is attached to the upper end of the rotary cylinder 20.
The bevel gear 22 is also meshed with this bevel gear 21,
The rotating shaft 23 of the bevel gear 22 has a mechanism in which a small motor M is linked.

That is, the rotary cylinder 20 is rotated by controlling the forward / reverse rotation of the small motor M, and the level of the guide caster 14 is adjusted up and down based on the rotation.

Next, a slime box 24 for collecting slime generated by brushing has a front end upper edge of a box main body 24a having a semi-arcuate shape as shown in FIG. Are connected to each other using a connecting pin 25.

A hydraulic cylinder 27 is provided between the connecting ear piece 26 provided upright on the upper surface of the box body 24a and the front end side of the support frame 13.
When the hydraulic cylinder 27 is extended and contracted, the box body 24a is configured to be inverted with the connecting pin 25 as a fulcrum.

In FIG. 1, 28 is a motor for driving the rotary brush C to rotate, which is installed on the support frame 13. The motor 28 and the rotary shaft of the rotary brush C are linked in a chain drive system. The above is the configuration of the rough surface finishing device according to the present invention.

Next, the outline of the operating procedure of this device will be explained. First, the entire device is installed on rails 1 and 1 laid on the left and right shoulders of the concrete paved road D to be brushed. Then, first, the leveling of the traveling frame A itself and the parallelism of the rotating brush C with respect to the paved road surface d are adjusted by using the adjusting handles 7 and 7 in the apparatus.

Next, the levels of the guide casters 14 and 14 on both sides of the support frame 13 which supports the rotary brush C are adjusted, and the parallelism of the rotary brush C with respect to the paved road surface d is finally adjusted. At the same time, the hydraulic cylinder 18 hanging down from the traverse operation platform B is operated, that is, the piston rod 18a of the hydraulic cylinder 18 is extended, and the rotating brush C is grounded on the paved road surface d. At that time, the paved road surface d by the rotating brush C
In order to set the shaving depth t of the rotary brush C, the levels of the guide casters 14 and 14 are adjusted in accordance with the height H calculated in advance with reference to the ground contact height h of the rotary brush C.

When the grounding of the rotary brush C to the paved road surface d is completed, the motor 28 that rotationally drives the rotary brush C is started to start the paved road surface d.
Brush on. At the same time, the traverse operation console B is moved. When the traverse operation platform B is moved, the rotary brush B is pulled by it and brushes in the width direction of the paved road surface d. When the brushing in the width direction progresses and the rotary brush reaches the brushing end on the road shoulder side, the movement operation of the traverse operation platform B is stopped. At the same time, the rotational drive of the rotary brush C is also stopped. And the piston rod 18 of the hydraulic cylinder 18
Shorten a and separate the rotating brush C from the paved road surface d. That is, the state shown in FIG. 4 is obtained. Then, the slime box 24 is turned over and the collected slime is discharged to the shoulder side. When the discharge of the slime is completed, the transverse operation platform B is moved in the opposite side road shoulder direction, the vertical traveling frame A is advanced, and stopped at a position slightly shorter than the span of the rotary brush C.

Then, the rotating brush C is grounded again on the paved road surface d, and the above-mentioned operation is repeated in sequence to finish the rough surface on the paved road surface d.

FIG. 5 diagrammatically shows the working process.

Note that FIG. 6 shows a work process in a case where a traverse operation console movement operation in the width direction and a forward movement operation of the vertical traveling frame A in the road direction are performed in parallel to perform a so-called diagonal rough surface finishing. It is shown diagrammatically.

(Effect of the Invention) Since the rough surface finishing device according to the present invention is configured as described above, the following operational effects are secured as compared with the conventional device.

(1) Since the rotating brush is configured to be grounded on the paved road surface via the pair of left and right guide casters, the parallelism to the paved road surface can be easily obtained as compared with the conventional grounding method using four wheel guide casters. As a result, brushing with high flatness can be maintained.

(2) By moving the traverse operation platform, the rotating brush is pulled on the road surface. The pulled rotating brush is grounded on the road surface by the pair of left and right guide casters, so that the moment caused by the pulling is rotated. It has no effect on the brush. That is, there is no effect of floating above the paved road surface. Further, it is not affected by the bending of the traverse operation platform.

Therefore, it is possible to maintain a uniform depth of brushing without causing unevenness in the shaving depth of the paved road surface due to the brushing, and synergistically with the effect of (1) above, a rough surface finish with high flatness and uniformity can be obtained. Reserved.

(3) Further, in the present invention, adjustment of parallelism of the rotating brush with respect to the paved road surface, grounding operation to the paved road surface,
Since a series of operations such as adjustment of the cutting depth, driving of traverse operation, reversing operation of the slime box, etc. are performed using the motor and hydraulic cylinder, these can be operated by sequence control. Easy to do. Therefore, it is possible to further improve the efficiency of the mechanical rough surface finishing work with the rotating brush and to secure the rough surface finishing work with high flatness and uniformity.

[Brief description of drawings]

The drawings show an embodiment of a rough surface finishing device for concrete pavement according to the present invention. FIG. 1 is a front view of the main part of the device,
2 is a vertical sectional side view taken along the line YY of FIG. 1, FIG. 3 is a partial vertical sectional front view showing a level adjusting mechanism of a guide caster, and FIG.
The figure is a side view showing a state in which the rotary brush is separated from the pavement road surface and the slime box is reversed, and FIGS. 5 and 6 are process diagrams schematically showing the procedure of the brushing work by the device of the present invention. FIG. 7 is a conceptual diagram showing a conventional rotary brush support mechanism. A: vertical running frame, B: horizontal operating console, C: rotating brush, D: paved road, 1 ... rail, 2 ... vertical beam, 3 ... horizontal beam, 4 ... wheels, 5 ... Support leg, 6 ...
Drive motor, 7 ... adjusting handle, 8 ... guide roller, 9 ... motor, 10 ... sprocket gear, 11 ... drive chain, 12 ... auxiliary sprocket gear, 13 ... support frame, 14 ... guide caster , 14a …… support shaft of guide caster, 14b …… male screw, 15 …… support leg, 16 …… support bracket, 17 …… connecting pin, 18 …… hydraulic cylinder,
18a ... Piston rod, 19 ... Chain, 20 ... Rotating cylinder, 20a ... Female thread, 21,22 ... Bevel gear, 23 ... Rotating shaft, 24 ... Slime box, 24a ... Box body, 2
5 …… Connecting pin, 26 …… Connecting ear piece, 27 …… Hydraulic cylinder, 28 …… Motor.

Claims (2)

[Scope of utility model registration request] 1. A rough surface finishing device for a concrete pavement, comprising a traverse operation platform mounted on a longitudinal frame and a transverse shaft type rotating brush for brushing the pavement road surface mounted on the traverse operation platform. The rotating brush is horizontally supported by a supporting frame having a pair of guide casters whose level can be freely adjusted to the left and right, and the supporting frame is supported by vertically extending both front end portions of the supporting frame to both sides of the traverse operation platform. It is connected to the lower end of the bracket, and the rear end is connected to the piston rod of a hydraulic cylinder that also hangs down from the traverse operation table via a chain, and the level adjusting means of the guide caster is composed of an electric level adjusting mechanism. Rough surface finishing equipment for concrete pavements. 2. A reversing operation mechanism for a slime box, comprising a top end front edge of a slime box pivotally mounted on the upper rear end of the support frame, and a hydraulic cylinder between the slime box and the support frame. The rough surface finishing device for concrete pavement according to claim 1, wherein the rough surface finishing device is assembled.