JP2534561B2 - Laitance processor - Google Patents

Description

Detailed Description of the Invention [Industrial applications]

TECHNICAL FIELD The present invention relates to a leitance treatment device used for removing leitance that has emerged and precipitated and deposited on the surface of cast concrete.

[Prior art]

Laitance is a fine substance such as cement, sand, etc. formed by the material separation of concrete, which is deposited on the surface of the concrete as the water rises in the breathing, that is, in the concrete that has not yet solidified. However, even if it is hardened, its strength, adhesion, watertightness, etc. are small, and it forms a weak layer. Therefore, especially in the horizontal joint, unless this is completely removed, it becomes a serious defect of the structure. Conventionally, for example, in order to remove the above-mentioned leitance in a concrete dam, a surface of concrete is cut by about 5 to 10 mm by using a floor polisher, and it is roughly flushed with high pressure water.

[Problems to be Solved by the Invention]

However, the scraped leitance forms a sludge when mixed with water, etc., and covers the work surface that is the concrete pouring surface.Therefore, especially in the case of input work, it is necessary to grasp the finish situation by intuition and experience. . In addition, the work is extremely difficult due to the unevenness of the concrete pouring surface, the difference in the degree of hardening of the concrete due to changes in the outside temperature, etc., and there is a risk that overcutting or uncutting will occur. Therefore, where a skilled worker is required,
It is difficult to secure personnel due to the bad working environment in which sludge is scattered.Moreover, since the work machine is small compared to the size of the work yard, many machines and many people operate it. It is the present situation that the worker of is needed. Furthermore, since it is necessary to use a large amount of high-pressure water for work, a large number of cables, hoses, etc. are arranged in the work yard, which poses a safety problem. An object of the present invention is to machine a concrete surface horizontally with a disc-shaped brush so that the disc-shaped brush is swingably mounted on a brush mounting substrate, and the brush mounting substrate is self-propelled. The above-mentioned problems are solved by slidably mounting the suspension board which has a required degree of freedom in vertical movement, left-right movement and forward-backward rotation on the parallel link supported by .

[Means for Solving the Problems]

The structure of the device of the present invention is as follows. Disk-shaped brushes 21-23 that cut concrete surfaces horizontally
Is attached to the brush mounting substrate 16 so as to be swingable. The brush mounting substrate 16, the parallel link ₄₁ to ₄ with respect to the machine frame 1 to self supported vertically movably and vertically movable relative to the parallel link ₄₁ to _4, the right and left and back-and-forth rotation It is mounted so as to be slidable from side to side with respect to the suspension board 6 having a required degree of freedom. In the above, on the rear side of the brush mounting substrate 16, the skewage 4 for scraping up and sucking the latance cut by the disk-shaped brushes 21 to 23 and feeding it to the vacuum tank 55 is mounted, or alternatively, the skewage 45 thereof. , Arc top 46
The lower blade of the front blade 47 and the rear blade 48 are hung vertically at a required interval, and a vacuum hose connection port 54 is provided at the center of the arc-shaped top plate 46.
If it is opened between 8, the said latance process can be performed more effectively.

[Work]

The concrete surface can be cut horizontally with a disc-shaped brush to cut out the laitance. Since the disc-shaped brush is mounted so that it can be swung with respect to the brush mounting board, it can be used to create relatively small irregularities on the concrete surface. On the other hand, the swinging motion corresponds to the cutting of the uneven portion. In addition, the disk-shaped brush has a parallel link that is vertically movable with respect to the machine frame, and the vertical movement, left-right, and front-back rotation of the suspension board mounted on the machine frame, for relatively large undulations on the concrete surface. Depending on the degree of freedom of movement, the specified cutting is performed. Further, the lateral width cut by the disk-shaped brush can be made wider than the width specific to the brush mounting board by sliding the brush mounting board left and right with respect to the hanging board, and the cutting width can be widened.

【Example】

Hereinafter, an embodiment of the device for processing a relatance of the present invention will be described in detail when it is mounted on a self-propelled machine frame as a front device for processing relatance, together with a device for processing rear retance mounted on the frame. Reference numeral 1 denotes a machine frame having front wheels 2 and rear wheels 3, which travels by driving the front wheels 2. A is a front latance processing apparatus of the present invention mounted on the front side of the machine casing 1, and B is a rear latance processing apparatus mounted on the rear side of the machine casing 1. The structure of the forward latance processing apparatus A of the present invention is as follows. Reference numerals 4 ₁ to 4 ₄ are four parallel links in the vertical and horizontal directions, the base ends of which are pivotally supported by the left and right brackets 5 ₁ and 5 ₂ of the machine frame 1. 6 is a suspension board provided with rails 7 and 7 ′ that are parallel to the front and rear sides of the lower surface and open toward the inside, and 8 and 8 ′ are horizontal members 9 on the rear side that are laid down on the top surface of the suspension board 6. 9'standing upright, 10,10 'diagonal reinforcement between the upright 8,8' and the front cross member 9 ", 11 _{1 to} 11 ₄ left and right sides of the upright 8,8 ' each consolidated plate was affixed, these connecting plates 11 ₁ to 11 _4, the opened wide elongated hole 12 on the upper side, and has opened the narrow elongated 13 on the lower side. the connection plate The relatively long shaft rods 14 _{1 to} 14 ₄ attached to the ends of the parallel links 4 ₁ to _{4 4 in} the vertical holes 12 and 13 of 11 _{1 to} 11 ₄ are
To the distal end of the parallel link ₄₁ to _4, lower substrate 6 suspended is relatively vertically movable, it is inserted in the relationship with the degree of freedom that can be longitudinal and lateral rotation. That is, lowering the substrate 6 suspended, to the distal end of the parallel link ₄₁ to _4, it is possible to relatively move up and down within the length of the elongated holes 12 and 13 (height), the bottom of the longitudinal hole Axial rods 14 ₂ and 14 ₄ inserted in 13 can be relatively rotated back and forth within the width of the vertical hole 12 on the upper side, and moreover, both end faces of the parallel links 4 ₁ to 4 ₄ and the connecting plate 11 can be rotated. also it relatively lateral pivoting in the range of the gap between ₁ to 11 ₄ of the inner surface (Figure 6 and 7
Figure). Reference numeral 15 is a hydraulic cylinder in which the base end is rotatably supported by the machine frame 1 and the tip end of a piston rod 15 'is supported by a horizontal cross rod 8 "between columns 8 and 8'. the lower substrate 6 suspended by the operation of the 15 or can down or pulled through a parallel link ₄₁ to _4.16 in the brush mounting substrate, it is the rail sliders 17, 17 'standing upright placed on the upper surface The sprocket 19 of the slide hydraulic motor 18 fixed to the front side is suspended and mounted on the suspension board 6 by engaging with 7, 7 '.
Is engaged with a chain rack 20 which is stretched on the front surface of the suspension board 6. Therefore, the brush mounting board 16 slides left and right with respect to the suspension board 6 by the drive of the sliding hydraulic motor 18 by a width equal to or larger than the peculiar width of the brush mounting board 16. It corresponds to the width of 1 (FIG. 5). Numerals 21 to 23 are disk-shaped brushes rotatably supported on the left and right sides and the center of the lower surface of the brush mounting substrate 16, and have a doughnut-shaped plate with an outer diameter of about φ320 mm and an inner diameter of about φ150 mm with a diameter of 0.4 to 0.8 and a length of about 50 mm. A large number of steel wires are densely planted. Reference numeral 24 is a brush rotation hydraulic motor fixed to the rear side of the base plate 16, and a drive chain 31 is wound around a drive sprocket 25 to 28 and a turning sprocket 29, 30 for brush rotation. By the hydraulic motor 24, the disk-shaped brushes 21-23 are
For example, they rotate all together in the direction of the arrow in FIG. The support of the disk-shaped brushes 21 to 23 to the brush mounting substrate 16 is performed as follows. 32 is a fixed shaft established on each sprocket 26-28,
Each of the pockets 26 to 28 is rotatably supported on the lower surface of the brush mounting substrate 16 by a required bearing 33 via the shaft 32. 34 is a brush flange to which the disk-shaped brushes 21 to 23 are detachably attached. Bolts 36 are inserted through the three through holes 35 provided at the positions corresponding to the corners of the equilateral triangle of the brush flange 34. Together with the collar 37 fitted to the bolt 36, the sprocket 26 to 28 are projected upward through the three through holes 38 provided at the positions corresponding to the respective corners of the equilateral triangle. Reference numeral 41 is a coil spring fitted to a portion of the collar 37 protruding above the sprockets 26 to 28, which is interposed between the washer 40 which is in contact with the nut 39 on the upper surface of the collar 37 and the upper surfaces of the sprockets 26 to 28. Disk-shaped brushes 21-23
To pull up toward the brush flange 34. Reference numeral 42 denotes a spherical body fitted to the protruding shaft 43 on the lower surface of the sprockets 26 to 28.The spherical body 42 and the spherical bearing seat 44 on the upper surface of the brush flange 34 are in an elastic state by the action of the coil spring 41. There is. Therefore, when the lower surface of each of the disc-shaped brushes 21 to 23 comes into contact with the inclined portion S forming the relatively small irregularities of the concrete surface, the sprocket follows the inclination.
26-28, and therefore also the tilting with respect to the brush mounting substrate 16 (FIG. 8). Reference numeral 45 denotes a front squeegee formed by vertically arranging a short front blade 47 and a tall rear blade 48 on the lower surface of the arc-shaped top plate 46, which is a parallel link behind the brush mounting substrate 16.
It is attached so that it can move up and down via 49 ₁ to 49 ₄ . That is, the parallel links 4 whose base ends are axially supported by the brackets 50 ₁ and 50 ₂ attached to the rear side edge of the brush attachment substrate 16.
9 _1-49 pivoted to the mounting plate 51 to ₄ of the tip, the mounting plate 51
Since the front squeegee 45 is connected to the front squeegee 45, the front squeegee 45 is movable up and down with respect to the brush mounting substrate 16, and is normally supported in a lowered state by its own weight. Since the upper left and right 49 ₁ and 49 _{3 in} the parallel link are in a turnbuckle type, the front and rear inclination of the front squeegee 45 is adjusted by expanding and contracting these, and the concrete surface of the front blade 47 and the rear blade 48 is adjusted. The distance and contact state with respect to can be freely set to the most suitable one. 52 is an elbow-shaped connecting piece whose lower end is fixed to the center of the top plate 46 of the front squeegee 45, and whose upper end is the mounting hole of the above-mentioned mounting plate 51.
By being rotatably inserted in 53, the front squeegee 45 can rotate left and right around the elbow-shaped connecting piece 52. Reference numeral 54 denotes a vacuum hose connection port installed at the center of the top plate 46, which is opened between the front blade 47 and the rear blade 48. Reference numeral a is a suspension spring stretched between the machine frame 1 and the suspension board 6, and the stroke of the disk-shaped brushes 21 to 23 is grounded by manually adjusting the stroke at the upper end portion locked to the machine frame 1. It controls the load. The configuration of the forward latance processing apparatus A of the present invention is as described above, and it is pulled up by the hydraulic cylinder 15 when not in use, but when used for performing the latance processing work, the hydraulic cylinder 15 is in a free state. By doing so, the disk-shaped brushes 21 to 23 can be lowered to the place where they are grounded on the concrete surface (Figs. 1 and 3). As described above, the load at the time of grounding can be controlled by the suspension spring a. The disk-shaped brushes 21 to 23 are hydraulic motors 24 for brush rotation.
When the machine frame 1 is moved forward while being horizontally rotated by the drive of, the concrete surface is horizontally cut by the disk-shaped brushes 21 to 23, and the carved latance is sucked into the front squeegee 45 and connected to the vacuum hose. It is fed and stored in the vacuum tank 55 through the mouth 54. In this case, when there is a large undulation in concrete surface, the coupling plate 11 ₁ to 11 length of ₄ longitudinal holes 12 and 13 (height) in the range of width, and a connecting plate 11 ₁ to 11 ₄ parallel link
Within the gap between 4 ₁ to 4 ₄ and parallel links 4 ₁ to
4 Within the rotation range of ₄ itself, the entire front leitance processing device A of the present invention moves up and down and rotates back and forth and left and right, so that the disk-shaped brushes 21 to 23 can always follow the large swell of the concrete surface ( (See FIGS. 6 and 7). Further, when the concrete surface has small unevenness corresponding to each of the disk-shaped brushes 21 to 23, the disk-shaped brush appropriately expands and contracts the coil spring 41 and follows the inclined portion S formed by the unevenness. It also tilts in the direction of (see Fig. 8). The front squeegee 45 is a brush mounting board as described above.
Since it is movable up and down with respect to 16 and is normally supported by its own weight in a lowered state, the disk-shaped brushes 21-23
When it touches the concrete surface, at the same time the rear blade
48 is grounded, and it moves up and down independently and follows left and right to follow the irregularities of the concrete surface as described above. Shaped parallel links 49 ₁ , 49 ₃
Can be adjusted and set as appropriate. As a result, the laitance on the concrete pouring surface is almost completely removed by cutting. Next, the configuration of the backward latance processing device B is as follows. 56 is a brush mounting frame, 57 is this brush mounting frame 56
It is a cylindrical brush that is mounted on a steel pipe with an outer diameter of φ48.6 and a diameter of 2 mm.
Nylon thread with a length of about 125 mm is densely planted. Reference numeral 58 is a brush rotating hydraulic motor for rotating the cylindrical brush 57. The brush mounting frame body 56 is rotatably mounted on the machine frame 1 by pivotally supporting an auxiliary frame 59 projecting on the brush mounting frame body 56 with a horizontal shaft rod 60, and these auxiliary frame 59 and the machine frame 1
Piston rod of hydraulic cylinder 61 installed between facing parts of
In response to the expansion / contraction motion of 61 ′, it rotates up and down, and the cylindrical brush 57
When it is not in use, it is pulled up, and when it is used for laitance processing, it descends to the ground contact with the concrete surface (Fig. 1). Reference numeral 62 denotes a rear squeegee formed by vertically arranging a short front blade 64 and a tall rear blade 65 on the lower surface of the arc-shaped top plate 63, which is a parallel link 66 _{1 at} the rear side of the machine casing _1. , 66 ₂
It is attached so that it can move up and down via. That is, the mounting frame 68 is pivotally supported at the tips of the parallel links 66 ₁ , 66 ₂ whose base ends are pivotally supported by the brackets 67 ₁ , 67 ₂ mounted on the rear side edges of the machine frame 1. By connecting the rear squeegee 62 to the rear squeegee 62, the rear squeegee 62 can be moved up and down with respect to the machine frame 1. 69 is a lever member that rotatably supports a bent base end 69 ₁ on the machine frame 1 above the brackets 67 ₁ and 67 ₂ and has a pin 6 at the tip thereof.
9 ₂ and an upper end of the lower end and the attachment frame 68 of the connecting rod 71 extending downward is fitted an elongated hole 70 and axially connected. Reference numeral 72 denotes a connecting rod, _one end of which is pivotally attached to the auxiliary frame 59 and the other end of which is pivotally attached to the bent base end 69 ₁ of the lever member 69. Therefore, the rear squeegee 62 is
As the hydraulic cylinder 61 vertically moves the 56, it moves up and down, and the cylindrical brush 57 is also lifted upward and is positioned in the same manner when not in use.The cylindrical brush 57 is grounded on the concrete surface. When it is in use, it is likewise dropped to the place where it touches the concrete surface. Since the parallel link 66 ₁ are the turnbuckle format, by stretching it to adjust the longitudinal tilt degree of the rear Sukyuji 62, the state of the spacing and contact with the concrete surface of the front blade 64 and rear blade 65 It can be freely set to the most suitable one. Reference numeral 73 denotes an elbow-shaped connecting piece whose lower end is fixed to the center of the arc-shaped top plate 63 of the rear squeegee 62, and the upper end is rotatably inserted into the mounting hole 74 of the mounting frame 68, whereby the rear squeegee 62 is The elbow-shaped connecting piece 73 can also be rotated left and right. Reference numeral 75 denotes a vacuum hose connection port installed in the center of the top plate 63, which is opened between the front blade 64 and the rear blade 65. Reference numeral 76 denotes a water sprinkling pipe horizontally laid in an upper space between the cylindrical brush 57 and the rear squeegee 62, which is connected to a water tank 77 mounted on the machine casing 1 by a pipe, and a high pressure pump 79 sprays pressure water to a nozzle 76. Water from ' The configuration of the rear latance processing device B is as described above. The rear latance processing device B is pulled up above the concrete surface by the hydraulic cylinder 61 when not in use, but it is a cylinder when in use for performing the latance processing work. The brush 57 and the rear squeegee 62 are lowered to the place where they come into contact with the concrete surface (Fig. 1), the cylindrical brush 57 is rotated by the hydraulic motor 58 for rotating the brush, and water is sprayed from the watering nords 76 '. By moving the machine frame 1 forward while cleaning the concrete surface, the cylindrical brush 57 is left behind due to the fact that it has a large laitance despite the above-mentioned treatment by the forward leitance treatment device A of the present invention. Part or concave part is cut from the vertical direction and the concrete surface is wiped again. While, with the washing water sprayed sludge-like Reitansu generated therein, it sucked backwards Sukyuji 62, delivering housing from the vacuum hose connecting port 75 to the vacuum tank 78. In this case, the rear squeegee 62 is rotatable left and right with respect to the mounting frame 68 as described above, and the connecting rod 71 whose lower end is axially connected to the mounting frame 68 is freely moved up and down within the range of the vertically elongated hole 70. Therefore, it can independently turn left and right and move up and down to follow the unevenness of the concrete surface, and the tilt adjustment of the rear skewage 62 can be adjusted appropriately by the parallel link 66 ₁ . Is. In this way, the finishing process of the leitance on the concrete pouring surface can be efficiently carried out. In the figure, 80 is a vacuum pump, 81 is a generator, and 82 is a hydraulic unit, all of which are mounted on the machine casing 1.

【The invention's effect】

As is clear from the above detailed description, according to the present invention, the concrete surface can be horizontally cut by the disc-shaped brush attached to the brush attachment substrate to cut out the leitance, and the disc-shaped brush is Since it is attached to the brush mounting substrate so that it can swing,
Even a relatively small unevenness on the concrete surface can be dealt with by the swinging motion, and the inclined portion forming the unevenness can be appropriately cut. Further, according to the present invention, when the cylindrical brush is brought into contact with a relatively large swell of the concrete surface, the parallel link movably supported on the machine frame and the vertical movement of the suspension board mounted on the parallel link are provided. Corresponding to the degree of freedom of left / right and front / rear rotation, predetermined cutting is performed along the large swell. Further, the horizontal width cut by the cylindrical brush can be made wider than the width specific to the brush mounting board by sliding the brush mounting board left and right with respect to the hanging board, and the cutting width can be widened. In addition, on the rear side of the brush mounting board, a skewer that scrapes up the leitance cut by the cylindrical brush and sucks it and feeds it to the vacuum tank is mounted, or alternatively, the skewage is attached to the lower surface of the arc-shaped top plate on the front side. When the blade and the rear blade are hung vertically at a required interval, and a vacuum hose connection port is provided at the center of the arc-shaped top plate,
It is clear that the latency process can be performed more effectively.

[Brief description of drawings]

The drawings show a case where the embodiment of the present invention's leitance processing device is mounted on a self-propelled machine frame as a front leitance processing device,
It is shown together with the rear latance processing device mounted on the machine frame. FIG. 1 is a schematic side view, FIG. 2 is a plan view of the same, and FIG. 3 is a side view of a main part of the front latance processing device of the present invention.
FIG. 4 is a plan view of the same as above, FIG. 5 is a plan view showing a horizontal sliding range of the brush mounting substrate, and FIGS. 6 and 7 are vertical movements, front-back movements and left-right rotations of the front leitance processing device of the present invention FIG. 8 is a rear view and a side view of the parallel link mechanism portion for explaining the above, FIG. 8 and FIG. 9 are a side view and an exploded perspective view of a disc-shaped brush attached state, and FIG. 10 is a perspective view of a front squeegee mounted state. Fig. 11 is a bottom view of the front squeegee, Fig. 12
FIG. 13 and FIG. 13 are cross-sectional views of the main part of the front squeegee, FIG. 14 is a front view of a cylindrical brush that constitutes the rear latance processing device in a mounted state, and FIG. 15 is a mounting frame of the cylindrical brush. FIG. 16 is a side view of the rotating portion, and FIG. 16 is a perspective view of the rear squeegee in a mounted state. 21〜23 …… Disc-shaped brush, 16 …… Brush mounting board, 1
…… Machine frame, 4 ₁ to 4 ₄ …… Parallel link, 6 …… Suspended board,
55 …… vacuum tank, 45 …… squeegee, 46 …… arc top plate, 47 …… front blade, 48 …… rear blade,
54 ... Vacuum hose connection port.

Claims (3)

(57) [Claims] 1. A disc-shaped brush for horizontally cutting a concrete surface is swingably attached to a brush mounting substrate, and the brush mounting substrate is vertically movable by a parallel link with respect to a self-propelled machine frame. A leitance processing device, which is slidably mounted left and right on a suspended substrate that is supported and has a required degree of freedom in vertical movement, left and right, and forward and backward rotation with respect to the parallel link. 2. A skewage for scraping and sucking the latance cut by the disk-shaped brush and feeding it to a vacuum tank is mounted on the rear side of the brush mounting substrate. Laitance processor. 3. The squeegee vertically extends a front blade and a rear blade on a lower surface of an arc-shaped top plate at a required interval, and provides a vacuum hose connection port at the center of the arc-shaped top plate. The leitance treatment device according to claim 1 or 2, wherein the device is opened between a front blade and a rear blade.