KR102278381B1 - Manhole assembly of cutting one circle on the road and system of cutting one circle by the manhole assembly - Google Patents

Abstract

The present invention relates to a manhole repair assembly for cutting a perfect circle on a circumference and a manhole repair system using the same. When cutting a road pavement layer while repairing a manhole, a strong cutting reaction force in a circumferential direction of a first to third circular drum cutters of a circular cutter (1) and a downward pressurizing force applied to the circular drum cutter are resisted by a centering holder apparatus (9) installed on an upper end of a manhole housing (100). Against the strong cutting reaction force in a circumferential direction of the circular drum cutter, a hydraulic cylinder (95) is installed on a bottom unit of three-directional prop supporter (92) of the centering holder apparatus (9) installed on an upper end of the manhole housing (100). Here, by the extension of a piston rod (96) of the hydraulic cylinder (95), a horizontal compression force toward a vertical inner surface of the manhole housing (100) is displayed. Meanwhile, the downward pressurizing force is resisted by the three-directional prop supporter (92) of the centering holder apparatus (9) installed on an upper end of the manhole housing (100). Accordingly, the cut radius central point (O) on the circumference is not varied by the horizontal compression force of the hydraulic cylinder (95) and the vertical support force of the three-directional prop supporter (92), and only the central point (O) is fixed and maintained as it is, so that only one perfect circle can be cut on the circumference.

Description

Manhole repair assembly for circular garden cutting and manhole repair system using same {Manhole assembly of cutting one circle on the road and system of cutting one circle by the manhole assembly}

The present invention relates to a manhole repair assembly for circular round cutting and a manhole repair system using the same. More specifically, the first, second, third of the circular cutter (1) when cutting a road pavement layer The strong cutting reaction force in the circumferential direction of the circular drum cutter and the downward pressing force applied to the circular drum cutter are resisted by the centering holder device 9 installed on the top of the manhole housing 100, but the circumference of the circular drum cutter For the strong cutting reaction force in the direction, the hydraulic cylinder 95 is installed at the bottom of the three-way support support 92 of the centering holder device 9 installed on the top of the manhole housing 100, and at this time, the hydraulic cylinder 95 The horizontal compression force on the vertical inner surface of the manhole housing 100 is exerted by the expansion of the piston rod 96, and the centering holder device 9 installed on the top of the manhole housing 100 against the downward pressing force. By allowing it to be supported by (92), the center point (O) of the cutting radius on the circumference does not change by the horizontal compression force of the hydraulic cylinder 95 and the vertical support force of the three-way support support 92, and only the center point (O) is It relates to an invention that is fixed and maintained as it is, so that only a single circle in the shape of a circle is cut.

In addition, the vertical support force of the circular drum cutter is supported by the three-way support support 92, and the piston rod 96 of the hydraulic cylinder 95 is expanded against the strong cutting reaction force in the circumferential direction. ) in the state where the centering holder device 9, which resists the horizontal compression force firmly exerted on the vertical inner surface, is installed in the manhole housing 100, in the shaft seating hole 94 of the support body 91 of the centering holder device 9, By enabling insertion and rotation of the center shaft 25 protruding from the lower end of the hydraulic cylindrical drum 24 of the circular cutter 1 installed on the upper part, the center shaft 25 for fixing the center can be rotated in a circular shape.圓) It was made to be the radius of the cut.

In addition, unlike the prior art, which takes a lot of work time by disassembling and assembling a plurality of fastening bolts in selecting and fixing one cutter from three first, second, and third round drum cutters having different diameters, the cutter By adopting the hydraulic system in which the selection and fixing of the valves are performed simultaneously, the selection and fixing are made easily and quickly by a simple hydraulic control lever, thereby maximizing the efficiency of traffic flow.

In general, a manhole installed on a road where vehicular traffic is frequent is a structure that supports the upper load of the vehicle and facilitates the protection and repair of various facilities (electricity, water/sewage, communication, gas pipe, etc.) installed below it. .

However, frequent vehicle traffic, especially the passage of large heavy vehicles, is the main culprit for road damage (cracks, partial dents, sinking, etc.). Repair work is inevitably followed in these large and small damaged areas. As a result, it is common to apply a pavement layer to the repair work.

When the existing manhole housing is located in the middle of the overlay, the level (flatness) is not matched between the pavement layer of the overlay and the manhole housing, so the operation of matching the manhole housing to the pavement layer of large and small overlays occurs.

Steps caused by such a poor manhole housing not only cause an unpleasant ride, but also cause a traffic accident if severe, and in the case of high-speed driving, there is a problem that the risk of overturning follows.

Manhole repair work is a construction that makes the level (flatness) due to the step (subsidence) match the level (flatness) of the surrounding road surface.

In general, the road layer (surface layer and base layer) including the manhole housing is cut in a cylindrical shape. The cylindrical cut|disconnected thing shall be called "cut block body (B)." "Cutting block body" is raised by lift equipment (fork crane, vehicle crane, etc.) and adjusted with step level adjusting means (adjusting ring, concrete mortar, asphalt concrete, etc.) in the empty space of "Cutting block body (B)" that has been lifted Then, in the raised "cut block body (B)", the surface layer asphalt attached to the manhole housing is removed, only the manhole housing is inserted again, the insertion gap is filled with a filler, and the surface layer is closed to complete the manhole repair work. .

When cutting the road layer (surface layer and base layer) including the manhole housing in a circumferential shape, the reason why the cutting circle of the road layer should be square is that the drum-shaped cutting blade of the circular drum cutter rotates in the garden. When the road surface is cut with vertical pressure, the load can be reduced and the cutting time can be shortened. If the cutting center is not fixed on the manhole housing, the horizontal compression force acts on the vertical side to decrease the cutting force of the cutting blade and increase the load on the circular drum cutter. Due to the increase in time, it is not possible to deeply cut the road layer (cloth layer and base layer) in a short time.

Here, since the raised "cut block body (B)" must be inserted into the empty space again, the circumferential cut must be a circle made of one radius center. If the center of the radius is changed during the cutting process and there are two or more radius centers, the cut shape of the "cut block (B)" is not constant and irregular, so the shape of the corresponding empty space is also irregular and the corresponding position Not only is it difficult to find, but it is also virtually impossible to insert at the location found in terms of smooth traffic flow.

Regarding circular cutting of the pavement layer, the applicant of the present application has proposed a circular cutter for road repair work of Patent No. 10-0931878 (Prior Art-1).

According to the prior art-1, according to the size (standard) of the manhole, it is a configuration provided with the first, second, and third cutters so that the radius size of the cut can be selected according to the radius size of the pavement layer around the manhole ( 12). There is an advantage in that it is possible to cut the "cutting block body (B)" of three large, medium, and small radius sizes by selection of the first, second, and third cutters.

However, in spite of these advantages of the prior art-1, there are the following problems, so we will look into them.

First, in order to select one of the first, second, and third cutters and cut one “cutting block body (B)”, the three cutters are connected to each other and assembled by disassembling the assembly bolts and the selected cutter It is a problem that takes a lot of time to disassemble and replace the cutter because it is reassembled and fastened together. As shown in Fig. 12, the number of circumferential fastening bolts 14 and 24 and their nuts 15 used in the first, second, and third cutters is 20 or more. This is because it takes a lot of work time to disassemble and reassemble this large number of fastening bolts 14, 24 and nuts 15 in terms of smooth traffic, which is inefficient and difficult in fact.

The second problem is that only the “support support” composed of the support pipe 81 and the moving pipe 82 cannot overcome the strong cutting resistance of the first, second, and third cutters when cutting the pavement layer, and the “support support” As the position is changed, the center (O) is also changed every moment, so that not only a plurality of circular cutting lines exist, but also an “irregular cutting and inserting part” in which a plurality of faults of the cutting layer are irregularly present on the plurality of varied circular cutting lines. There is a problem forming. This is a problem in that the "cut block body (B)" has an irregular cut line that is not round due to the variation of the center O.

This is because the "irregular cut block body (B)" is difficult to find the location of the corresponding "irregular cut and insert" and its insertion is difficult in terms of smooth traffic flow.

In addition, by frequently changing the center of the radius during the cutting process, a plurality of variable circular cutting lines and a plurality of faults on the circular cutting lines form irregular shapes.

As long as a plurality of variable circular cutting lines and a plurality of faults are irregularly present on the circular cutting lines, even if the height of the “irregular block body (B)” is adjusted, the installation structure of the height adjustment member on the concrete slab is unstable. problems will follow.

In addition, even if the shape of the "irregular block body (B)" is inserted into the "irregular cutting and inserting part", there is an uneconomical problem in that the empty space is large and the filler is excessively used.

And the applicant of the present application has also proposed Patent No. 10-1454224 (Prior Art-2).

In the circular cutter of prior art-2, "four bytes" are provided in a +-shape by the first and second bytes 124a and 124b as in the prior art-1. The radius center of the "four bites" is the center point O of the manhole housing support 130 . The center point O of "four bites" is the center point O of the horizontal support 133 supported on the manhole housing 2 .

As shown in Fig. 13, in the circumferential vertical cutting of "four bites", a strong cutting reaction force in the circumferential direction of "four bites" and a downward pressing force applied to the "four bites" The resistance to the “horizontal support 133” is the only resistance structure that completely depends on the “horizontal support 133”.

However, with the “horizontal and vertical bearing capacity of the horizontal support 133” structure of the prior art-2, the structure cannot be resistant to the downward pressing force applied to the “four bites” when the pavement layer is cut, so the horizontal support 133 is a manhole. There is a problem of slipping down along the vertical surface of the housing (2).

However, in the "horizontal and vertical support force of the horizontal support 133" structure of the prior art-2, the strong circumferential cutting reaction force of the "four bites" and the structure resisting the downward pressing force applied to the "four bites" There is a problem in that the horizontal support 133 slips in the vertical direction along the manhole housing (2). This is because, when the horizontal support 133 slips down, vertical cutting by “four bites” is not made that much.

In addition, it is a problem of the prior art-2 regarding the radius size adjustment of "four bites" by disassembly and assembly of the fastening bolts. At this time, since the number of bytes is 4 and the number of each fastening bolt is large, it takes a lot of work time for disassembly and assembly, which is inefficient in terms of smooth traffic flow.

⒜ When cutting the road pavement layer, the strong cutting reaction force in the circumferential direction of the first, second, and third circular drum cutters of the circular cutter (1) and the downward pressing force applied to the circular drum cutter are applied to the manhole housing (100). It is resisted by the centering holder device 9 installed at the top, but against the strong cutting reaction force in the circumferential direction of the circular drum cutter, the three-way support support 92 of the centering holder device 9 installed at the top of the manhole housing 100 At the bottom of the hydraulic cylinder 95 is installed, and at this time, the horizontal compression force on the vertical inner surface of the manhole housing 100 is exerted by the expansion of the piston rod 96 of the hydraulic cylinder 95. On the other hand, with respect to the downward pressing force By allowing it to be supported by the three-way support support 92 of the centering holder device 9 installed on the top of the manhole housing 100, the horizontal compression force of the hydraulic cylinder 95 and the vertical support force of the three-way support support 92 have a cylindrical shape. The purpose is to make only one circle on the circumference be cut by fixing and maintaining only the central point (O) without changing the cutting radius center point (O) of the

⒝ The vertical support force of the circular drum cutter is supported by the three-way support 92, and the piston rod 96 of the hydraulic cylinder 95 is expanded against the strong cutting reaction force in the circumferential direction. In the state in which the centering holder device 9, in which the horizontal compression force is strongly exerted and resisted on the vertical inner surface of the centering holder device 9, is installed in the manhole housing 100, in the shaft seating hole 94 of the support body 91 of the centering holder device 9, the By enabling insertion and rotation of the center shaft 25 protruding from the lower end of the hydraulic cylindrical drum 24 of the circular cutter 1 installed on the upper part, the center shaft 25 for center fixing is a circular circle. ) has a different purpose to make it the radius of the cut,

⒞ Unlike the prior art, which takes a lot of work time by disassembling and assembling a plurality of fastening bolts in selecting and fixing one cutter from three first, second, and third round drum cutters with different diameters, the cutter Another purpose is to maximize the traffic flow efficiency by adopting a hydraulic system in which the selection and fixing of the valves are performed simultaneously and the selection and fixing are made easily and quickly by a simple hydraulic control lever.

The configuration of the manhole repair assembly for cutting the circumference on the circumference of the present invention will be described as follows.

The manhole repair assembly for circular round cutting is made by a circular cutter (1) and a centering holder device (1).

The upper and lower fixed frames 1a and 1b formed in a circular shape, the rotating drum body 2 rotatably installed inside the fixed frames 1a and 1b, and the rotating drum body 2 , A fixed disk (4) formed above the rotating drum body (2) so as to be movable up and down, a drive motor (5) installed on the fixed disk (4), and an upper surface of the rotating drum body (2) The large interlocking gear 21 meshed with the small driving gear 52 axially installed on the output shaft 51 of the driving motor 5 while attached to and connected to, and the rotating drum body 2 are formed in a size that can be wrapped a plurality of circular drum cutters 3a, 3b, 3c, and a plurality of fixed posts 11 vertically installed in a state of being fixed at regular intervals to the upper and lower fixed frames 1a and 1b, and a cylinder (61) The lower end is fixed to the lower fixed frame (1b), the piston 62, the upper end is connected to the fixed disk (4) a plurality of hydraulic cylinders for lifting and lowering configured to elevate the rotating drum body (2) (6) ) In the circular cutter configured to be provided with,

The circular cutter 1 includes large, medium, and small circular drum cutters 3a, 3b, and 3c each having different sizes formed at the lower end of the rotating drum body 2;

A plurality of fixed blades 22 formed to protrude at regular intervals so as to be positioned above each of the large, medium and small circular drum cutters 3a, 3b, and 3c at the lower end of the rotating drum body 2;

Each of the plurality of fixed blades 22 has first, second, and third hydraulic cylinders for lifting and lowering the cutter, each of which is configured in plurality to lift and lower the large, medium, and small circular drum cutters 3a, 3b, and 3c. (8a)(8b)(8c);

a hydraulic cylindrical drum 24 having a hydraulic rotary joint 24a formed therein so as to protrude toward the center of the large interlocking gear 21 at an upper end thereof;

a circular cutter 1 including a center shaft 25 for fixing a center protruding downward to be positioned at the center of the rotating drum body 2 at the lower end of the hydraulic cylindrical drum 24;

The center shaft 25 for fixing the center protruding from the center of the rotating drum body 2 of the circular cutter 1 inserted into the shaft seating hole 94 of the shaft support member 93 is the circular drum cutters 3a and 3b. ) (3c) is a centering holder device (9) that becomes the center of rotation on the circumference of the manhole repair assembly for cutting the circumference of the circumference, characterized in that it includes a circle.

here,

The plurality of fixed blades 22 have a plurality of vertical stone rods 31 and 32 protruding upward at regular intervals from the upper ends of the first, second, and third circular drum cutters 3a, 3b, and 3c, respectively. (33) A plurality of guide tubes 26 for guiding each to be movable up and down is a manhole repair assembly for cutting a circumferential circle, characterized in that protruding at regular intervals.

Not only that,

The centering holder device 9 includes a support body 91 in which a plurality of support supports 92 protruding in three directions are integrally formed for seating and fixing on the upper end of the manhole housing 100, and the support body 91. A shaft support member 93 having a shaft seating hole 94 for rotatably supporting the center shaft 25 for fixing the center is formed in the center of the upper surface of the shaft support member 93, and each of the plurality of support supports 92 A plurality of hydraulic cylinders 95 installed one by one to move the piston rod 96 so as to be fixed to the inner surface of the manhole housing 100 at the bottom, and a plurality of hydraulic cylinders 95 at the bottom of the support body 91 ) It is a manhole repair assembly for circular cutting, characterized in that the hydraulic nozzle 97 for evenly supplying and recovering hydraulic pressure is formed in each.

Also,

The lower part of one side of the rotating drum body further includes a configuration of a plurality of lifting hydraulic pressure control levers for selectively operating each of the plurality of lifting hydraulic cylinders for lifting each of the first, second, and third circular drum cutters. It is a manhole repair assembly for cutting a columnar garden characterized by

The characteristic of the present invention is that first, the strong cutting reaction force in the circumferential direction of the first, second, and third circular drum cutters of the circular cutter (1) and the downward pressing force applied to the circular drum cutter are applied to the manhole housing (100). The center shaft 25 for fixing the center of the circular cutter 1 inserted into the shaft seating hole 94 of the centering holder device 9 by being resisted and supported by the installed centering holder device 9 is the first of the circular cutter (1). The radius center of the circular drum cutters of 1, 2, and 3 is maintained as it is, and only one circle is cut on the circumference. Second, three first, second, and third circular drum cutters with different diameters. By adopting a hydraulic system that simultaneously selects and fixes a cutter in selecting one cutter and fixing the cutter, selection and fixing are performed quickly and simultaneously by a simple hydraulic operation lever.

This is even more so because the traffic flow efficiency is maximized because selection and fixing are performed quickly compared to the prior art, which takes a lot of work time by disassembling and assembling a plurality of fastening bolts.

On the other hand, the configuration of the manhole repair system using the manhole repair assembly for cutting the circumference of the circle will be described as follows.

A three-way support support 92 of the centering holder device 9 is installed on the upper end of the manhole housing 100, and a hydraulic cylinder installed at the bottom of the three-way support support 92 on the vertical inner surface of the manhole housing 100 ( 95) is provided with a centering holder device 9 that allows the horizontal compression force to be firmly exerted and fixed by the expansion of the operating piston rod 96, while at the lower end of the rotating drum body 2, the first, second, and second 3 Large, medium, and small-sized circular drum cutters (3a), 3b, and 3c, which are raised and lowered by the hydraulic cylinders (8a, 8b, 8c) for lifting and lowering the cutter, are located at the lower end of the hydraulic cylindrical drum (24). A circular cutter (1) having a center shaft (25) for fixing the center protruding from the center is installed on the centering holder device (9), and at this time, the center shaft (25) for fixing the center of the circular cutter (1) is the centering holder device By enabling insertion and rotation into the shaft seating hole 94 of (9), the vertical pressing force is supported by the three-way support support 92 of the centering holder device 9 against the vertical pressing force of the circular drum cutter of the circular cutter (1). In addition, with respect to the strong cutting reaction force in the circumferential direction of the circular drum cutter, the piston rod 96 of the hydraulic cylinder 95 is resisted and supported by the horizontal compression force against the manhole housing 100 that is expanded and exerted to form a cylindrical shape. The cutting radius of the center point (O) is not changed, and the center point (O) is maintained as it is, so that a single columnar circle is cut. It is a manhole repair system using a manhole repair assembly.

here,

Selecting and fixing one cutter from the three first, second, and third round drum cutters with different diameters adopts a hydraulic system that simultaneously selects and fixes the cutter, so that selection and operation are performed by a simple hydraulic control lever. It is a manhole repair system using a manhole repair assembly for cutting the circumference of a circle, characterized by easy and quick fixation.

⒜ The present invention relates to the strong cutting reaction force in the circumferential direction of the first, second, and third circular drum cutters of the circular cutter (1) when cutting the pavement layer, and the manhole housing against the downward pressing force applied to the circular drum cutter. (100) It is resisted by the centering holder device 9 installed at the top, but against the strong cutting reaction force in the circumferential direction of the circular drum cutter, the three-way support support of the centering holder device 9 installed at the top of the manhole housing 100 A hydraulic cylinder 95 is installed at the bottom of the 92, and at this time, the horizontal compression force on the vertical inner surface of the manhole housing 100 is exerted by the expansion of the piston rod 96 of the hydraulic cylinder 95, while downward With respect to the pressing force, the horizontal compression force of the hydraulic cylinder 95 and the vertical support force of the three-way support support 92 are supported by the three-way support support 92 of the centering holder device 9 installed on the top of the manhole housing 100. By this, the center point (O) of the cutting radius on the circumference is not changed, and only the center point (O) is fixed and maintained as it is, so that only one circle on the circumference is cut.

⒝ The vertical support force of the circular drum cutter is supported by the three-way support 92, and the piston rod 96 of the hydraulic cylinder 95 is expanded against the strong cutting reaction force in the circumferential direction. In the state in which the centering holder device 9, in which the horizontal compression force is strongly exerted and resisted on the vertical inner surface of the centering holder device 9, is installed in the manhole housing 100, in the shaft seating hole 94 of the support body 91 of the centering holder device 9, the By enabling insertion and rotation of the center shaft 25 protruding from the lower end of the hydraulic cylindrical drum 24 of the circular cutter 1 installed on the upper part, the center shaft 25 for center fixing is a circular circle. ) has the effect of making the radius of the cut

⒞ Unlike the prior art, which takes a lot of work time by disassembling and assembling a plurality of fastening bolts in selecting and fixing one cutter from three first, second, and third round drum cutters with different diameters, the cutter It is a useful invention that has the effect of maximizing the traffic flow efficiency while selecting and fixing the selection and fixing by a simple hydraulic control lever by adopting a hydraulic system in which the selection and fixing are performed at the same time.

1 is a perspective view showing the overall configuration of the circular cutter of the present invention,
Figure 2 is a perspective view of the coupling state of the rotary drum body and the circular drum cutter constituting the circular cutter of the present invention,
3 is a side view of the ball cutter installed above the manhole housing;
4 is a cross-sectional view taken along line AA of FIG. 3;
5 is a perspective view of the centering holder device of the present invention,
6 is a cross-sectional view of the centering holder device of the present invention,
7 is a plan view of a state in which the centering holder device of the present invention is seated on the upper end of the manhole housing;
Figure 8 is a view of the state before performing the cutting operation after fixing the center shaft for fixing the center of the circular cutter of the present invention to the centering holder device seated on the top of the manhole housing,
9 to 11 are operation state diagrams showing the state in which the first, second, and third circular drum cutters for cutting the pavement layer are selectively lowered respectively while the circular cutter of the present invention is fixed to the centering holder device. ,
[Figure 12] It is an exploded perspective view showing the appearance of the circular cutter of the prior art-1,
[Figure 13] It is a cross-sectional view showing a circumferential cutting state by the circular cutter of the prior art-2.

A specific embodiment of a manhole repair assembly and a manhole repair system using the same for cutting the circumference on the circumference of the present invention will be described in detail with reference to the accompanying drawings.

Reference numeral 1 denotes a circular cutter, wherein the circular cutter 1 has upper and lower fixed frames 1a and 1b formed in a circle, and the upper and lower fixed frames 1a and 1b at regular intervals on the outer periphery. A plurality of fixed posts 11 fixedly attached to the rotating drum body 2 installed inside the upper and lower fixed frames 1a and 1b to enable rotational and elevating operations, and the rotating drum First, second, and third circular drum cutters 3a, 3b, and 3c having a diameter larger than the outer diameter of the sieve 2 and having different diameters of large, medium, and small installed at a lower position than the lower end of the sieve 2 And, a fixed disk 4 spaced apart from the rotating drum body 2 and installed at regular intervals, and a disk attachment frame 40 formed to be fixedly attached to the upper surface of the fixed disk 4 to form a + shape. And, the drive motor 5 fixedly installed on one side of the fixed disk 4, and the lower fixed frame 1b is fixedly connected to the lower end of the cylinder 61 and the upper end of the piston rod 62 is attached to the disk frame A plurality of lifting hydraulic cylinders 6 connected to (40), and one side of the upper fixed frame (1a) for controlling the rotational speed of the driving motor (5) and a plurality of lifting hydraulic cylinders (6), etc. A hydraulic control unit (7) is provided.

In addition, at the lower end of each of the plurality of fixed posts 11 that allow the circular cutter 1 to be fixedly installed on the road, an auxiliary post 12 capable of lifting and lowering is embedded one by one, and each of the fixed posts 11 A separate hydraulic device (not shown) for lifting and lowering the auxiliary post 12 is installed therein.

In addition, the hydraulic control unit 7 includes a speed control lever 71 for controlling the rotation speed of the driving motor 5 and a cylinder operation control lever 72 for controlling the operation of the hydraulic cylinder 6 for lifting and lowering. And No. 1, No. 2, No. 3 control levers 73, 74, 75, etc. for controlling the operation of the hydraulic device (not shown) installed in each of the plurality of fixed posts 11 are installed in sequence. and a manual handle 76 for finely adjusting the rotation speed of the driving motor 5 is additionally configured in the hydraulic control unit 7 (see FIG. 1).

In addition, a large interlocking gear 21 that rotates by receiving the rotational force of the driving motor 5 is fixedly attached to the upper surface of the rotating drum body 2, and the output shaft 51 of the driving motor 5 is a fixed disk ( It is configured to pass through 4) and transmit the rotational force to the large interlocking gear 21. For this, a small drive gear 52 meshed with the large interlocking gear 21 at the lower end of the output shaft 51 of the drive motor 5. is installed. (See Figs. 2 and 3)

A feature of the present invention is to form a plurality of fixed blades 22 protruding at regular intervals at the lower end of the rotary drum body 2 that is installed rotatably and elevating inside the circular cutter 1, and the plurality of The first, second, and third circular drum cutters 3a, 3b, and 3c for each of the stator blades 22 are respectively attached to the first, second, and third hydraulic cylinders for lifting and lowering the cutter (8a) ( 8b) (8c) is formed to lift and lower any one of the first, second and third circular drum cutters 3a, 3b, and 3c so that the road pavement surface (G) has a circumferential shape. It is in a configuration so that it can be cut into a garden.

To this end, in order to install the circular cutter 1 so as to be fixed to the center of the manhole housing 100, a hydraulic cylindrical drum 24 and a center axis for fixing the center protruding to the lower end thereof are located in the inner center of the rotating drum body 2 (25) is formed, and the center shaft 25 for fixing the center is a configuration in which a centering holder device 9 that is seated and fixed on the top of the manhole housing 100 is added, and the centering holder device 9 is a support body (91) and a plurality of support supports 92 projecting in three directions are integrally formed. The present invention manhole repair assembly is an assembly in which the circular cutter (1) and the centering holder device (9) are combined.

In addition, a shaft support member 93 is fixedly attached to the center of the support body 91 of the centering holder device 9, and the center is fixed to the shaft seating hole 94 formed in the center of the shaft support member 93. The lower end of the center shaft 25 is configured to be rotatably supported, and the material of the shaft support member 93 rotates in a state in which the lower end of the center shaft 25 for center fixing is supported in the shaft seating hole 94. It is composed of special materials that can withstand sufficiently without wear and tear.

In addition, in the support body 91 of the centering holder device 9, a plurality of hydraulic cylinders 95 are fixedly installed at the bottom of each of the plurality of support supports 92 that are seated and fixed on the top of the manhole housing 100. In addition, by the expansion of the piston rod 96 protruding from each of the plurality of hydraulic cylinders 95, it is firmly horizontally compressed against the vertical inner surface of the manhole housing 100.

In this way, in the state in which the center shaft 25 for fixing the center of the circular cutter 1 is inserted into the shaft seating hole 94 of the centering holder device 9, the vertical pressing force of the circular drum cutter of the circular cutter 1 is, the manhole It is supported by the three-way support support 92 of the centering holder device 9 spanning the upper end of the housing 100, and the strong cutting reaction force in the circumferential direction of the circular drum cutter is provided by the hydraulic cylinder 95 installed at the bottom thereof. ) of the expanded piston rod 96 by resistance and support by the horizontal compression force on the vertical inner surface of the manhole housing 100, the center point of the cutting radius on the circumference (O) does not change, and is always maintained as it is, so that only one circle Columnar garden cutting becomes possible.

In addition, a hydraulic nozzle 97 for uniformly supplying and recovering hydraulic pressure to each of the plurality of hydraulic cylinders 95 is formed at the bottom of the support body 91, and the hydraulic nozzle 97 uses a hydraulic hose, etc. It is configured to be connected to a hydraulic pressure supply device (not shown) for supplying and recovering hydraulic pressure.

In addition, in the circular cutter 1, the first to third hydraulic cylinders 8a, 8b, and 8c for lifting and lowering the cutter are formed on one side of the lower side of the rotating drum body 2 so that each of them can be individually operated one by one. It has a structure in which the first, second, and third hydraulic control levers 81, 82, and 83 for lifting and lowering are protruded or exposed to the outside through the through hole 23, and the first and second , when the third hydraulic control levers 81, 82, and 83 for lifting are selectively operated, the first, second, and third hydraulic cylinders 8a, 8b, and 8c for lifting and lowering the cutter are selected, respectively. The first, second, and third circular drum cutters 3a, 3b, and 3c are configured to be lifted and lifted separately.

In addition, each of the plurality of stator blades 22 has a plurality of vertical protruding rods 31, 32, and 33 protruding upward from the first, second, and third circular drum cutters 3a, 3b, and 3c. A plurality of guide tubes 26 are formed at regular intervals for guiding the lifting operation while holding the .

On the other hand, the plurality of hydraulic cylinders for lifting (6) is a lifting height adjustment of the rotating drum body (2) and its support member. It is a member supporting the circular cutter (1). The lower end of the cylinder 61 of each of the plurality of lifting hydraulic cylinders 6 is fixed to the lower fixed frame 1b, and the upper end of the piston rod 62 is fixed to the upper surface of the fixed disk 4 with a disk attachment frame It is fixed to the protrusion 42 formed on the outer end 41 of the (40). The shape of the disk attachment frame 40 is a +-shape.

In addition, the disk attachment frame 40 is configured to be movable up and down like the fixed disk 4, and for this purpose, the bottom of both ends of the four outer ends 41 formed in the disk attachment frame 40 has a plurality of upper portions. The lifting column 43 is fixedly attached, and the lower ends of each of the plurality of upper lifting maneuvers 43 move the upper ends of the plurality of lower fixed columns 44 fixedly attached to the lower fixed frame 1b up and down. It is configured to be connected in a state of enveloping it as much as possible. (See FIG. 1)

In addition, as the center of the large interlocking gear 21 fixedly connected to the upper end of the rotating drum body 2, the hydraulic rotary joint 24a formed on the upper part of the hydraulic cylindrical drum 24 is exposed. , The hydraulic rotary joint 24a is configured to fill hydraulic pressure in the hydraulic cylinder drum 24, which is substantially the same as the conventionally used joint configuration, so a detailed description thereof will be omitted.

In addition, each of the plurality of auxiliary posts 12 inserted and installed to protrude to the lower ends of the plurality of fixed posts 11 fixed to the upper and lower fixed frames 1a and 1b of the circular cutter 1 is the plurality of Each of the plurality of auxiliary posts 12 is fixed to one side of the upper fixed frame 1a of the circular cutting machine 1, which is configured to operate by a hydraulic device (not shown) inserted one by one into the fixed posts 11 of the When the No. 1, No. 2, No. 3 control levers 73, 74, and 75 formed in the installed hydraulic control unit 7 are selected and operated, they are configured to lift and lift separately. When the circular cutter (1) is to be installed on the road, the length of the plurality of auxiliary posts (12) protruding to the lower end of the fixed post (11) according to the slope of the road is adjusted by adjusting the length of the circular cutter (1). It is configured to be installed while adjusting the tilt angle.

The operation according to the repair work of the manhole installed on the road using the circular cutter 1 of the present invention configured as described above will be described as follows.

The circular cutter 1 opens the manhole cover (not shown) installed in the manhole installed on the road to open the manhole housing 100, and then the centering holder device 9 is removed from the opened manhole housing 100 ) is seated and fixed on the upper end, at this time, the centering holder device 9 is seated on the top of the manhole housing 100 by placing the ends of each of the plurality of three-way support supports 92 formed at regular intervals as shown in FIG. 7 . When the hydraulic pressure is supplied through the hydraulic nozzle 97 in this state, the hydraulic pressure is equally injected into each of the plurality of hydraulic cylinders 95 fixedly installed at the bottom of each of the plurality of three-way supporters 92, and accordingly Since the piston rod 96 appears and operates at the same time to press the inner surface of the manhole housing 100 with a uniform pressure, the centering holder device 9 has the shaft support member 93 at the center of the manhole housing 100 . It is fixedly installed on the top of the manhole housing 100 in a state where it is located.

After fixing and installing the centering holder device 9 on the top of the manhole housing 100 as described above, the circular cutter 1 is moved upwards of the manhole housing 100 in which the centering holder device 9 is installed. At this time, the circular cutter 1 is inserted into the lower ends of the plurality of fixed posts 11, and even if the lower ends of the plurality of auxiliary posts 12 are supported on the road pavement layer (G), the first, second, second 3, the cutter blades 30 formed at the lower ends of each of the circular drum cutters 3a, 3b, and 3c do not come into contact with the pavement layer G, as well as the lower end of the center shaft 25 for fixing the center. The state is adjusted so as not to touch the centering holder device 9 fixedly installed in the manhole housing 100, and the circular cutter 1 has a center shaft 25 for center fixing fixed to the manhole housing 100. It is installed so as to be located in the center of the shaft seating hole 93 of the shaft support member 93 installed in the center of the support body 91 of the centering holder device 9 (see FIG. 3).

After moving and installing the circular cutter (1) so that the center shaft (25) for fixing the center of the circular cutter (1) is located at the center of the centering holder device (9) fixedly installed in the manhole housing (100) as described above selects any one of the first, second, and third circular drum cutters 3a, 3b, and 3c installed in a horizontal state on the lower side of the rotating drum body 2, and the selected circular The drum cutter is lowered and operated to cut the road pavement layer (G) in a circumferential shape of the road pavement layer (G).

The operating relationship for the circular cut of the circle is as follows.

First, when the road pavement layer (G) is to be cut with the first circular drum cutter (3a), three pieces protruding or exposed to the outside through the through hole (23) formed at the lower end of the rotating drum body (2) When the lifting hydraulic control lever 81 for operating the first cutter lifting hydraulic cylinder 8a among the lifting hydraulic control levers 81, 82, and 83 is operated, the first cutter lifting hydraulic cylinder 8a ) of the piston rod 80a appears downward and the first circular drum cutter 3a is lowered as shown in FIG. 9, at which time it is formed at a predetermined interval at the lower end of the rotating drum body 2 Since a plurality of guide tubes 26 for guiding a plurality of vertical protruding rods 31 protruding from the upper surface of the first circular drum cutter 3a are formed on each of the plurality of fixed blades 22, the first cutter elevating and lowering. The first circular drum cutter 3a has a plurality of cutter blades 30 formed at the lower end of the first circular drum cutter 3a by the descending operation in which the piston rod (not shown) of the hydraulic cylinder 8a appears in the road pavement layer (G). It descends accurately vertically to the position where it touches (see Fig. 9).

The circular cutter 1 is installed with the center shaft 25 for fixing the center of the rotating drum body 2 inserted into the shaft seating hole 93 of the centering holder device 9 fixed on the manhole housing 100, and , by the rotation of the first circular drum cutter (3a) of which the rotation speed is adjusted, the road pavement layer (G) is cut in a circular shape in a circumferential shape. At this time, the vertical pressing force due to the weight of the circular cutter 1, the vertical force is supported by , and the reaction force is the three-way support support 92 of the centering holder device 9 spanning the upper end of the manhole housing 100. The strong cutting reaction force in the circumferential direction of the circular drum cutter is supported by the horizontal compression force on the vertical inner surface of the manhole housing 100 of the expanded piston rod 96 of the hydraulic cylinder 95 installed at the bottom thereof. resisted and supported

In addition, in order to start the operation of the first circular drum cutter (3a) cutting the road pavement layer (G) to a predetermined depth as described above, the cylinder operation control lever 72 formed in the hydraulic control unit 7 is operated. Thus, the first, second, and third hydraulic cylinders 6 for lifting are simultaneously operated, and the first, second, and third hydraulic cylinders 6 for lifting and lowering are operated so that the piston rod 62 moves the cylinder 61 ), when starting the lowering operation immersed in the piston rod 62, the front end (upper end in the drawing) is connected to the disk attachment frame 40, the four outer end portions 41 formed in the lowering state. , in accordance with this, the plurality of upper lifting posts 43 are in a state of descending in a state surrounding the plurality of lower fixed columns 44, and at the same time, the fixed disk 4 is also in a descending state, and in this way, the first and first 2 and the third hydraulic cylinder 6 for lifting and lowering each can adjust the lowering speed of the disk attachment frame 40 and the fixed disk 4 by operating the cylinder operation control lever 72, so that the first circular drum cutter (3a) becomes possible to cut the road pavement layer (G) into a garden.

As described above, the rotary drum body 2 is lowered so that the cutter blade 30 of the first circular drum cutter 3a comes into contact with the road pavement layer G, and at the same time, the driving motor 5 is rotated at a controlled rotation speed. When operated, the first circular drum cutter 3a cuts the road pavement layer G in a circular shape. At this time, the cylinder operation control lever 72 of the hydraulic control unit 7 is operated to operate a plurality of hydraulic pressure for lifting and lowering. When the lowering speed is adjusted by immersing the piston rod 62 of the cylinder 6 into the cylinder 61, the rotating drum body 2 has the rotating speed and the lowering speed appropriately adjusted, and accordingly, the rotating drum The first circular drum cutter 3a, which rotates and descends like the sieve 2, is circumferentially cut through the road pavement layer G to a set depth.

In addition, the rotating drum body 2 rotating together with the first circular drum cutter 3a is a center shaft for fixing the center inserted into the shaft seating hole 94 of the centering holder device 9 fixedly installed on the manhole housing 100. The road pavement layer (G) is cut in a straight line by the first circular drum cutter (3a) while rotating and descending around (25).

As described above, when the first circular drum cutter 3a rotates and descends while cutting the road pavement layer G to a desired depth, the operator operates the cylinder operation control lever 72 of the hydraulic control unit 7 When the piston rod 62 of the plurality of lifting hydraulic cylinders 6 is operated to appear upwardly from the cylinder 61, the first circular drum cutter in which the road pavement layer (G) is cut in a circle. (3a) is raised to the original position (see Fig. 3).

As described above, the selection, fixing, and lifting operations of the first circular drum cutter 3a are performed by the hydraulic control levers 81, 82, and 83 for lifting and lowering, so that the selection, fixing, and lifting operations are performed quickly. .

Next, when the road pavement layer (G) is to be cut using the second circular drum cutter (3b), three pieces protruding to the outside through the through hole (23) formed at the lower end of the rotating drum body (2) When the hydraulic control lever 82 for lifting which operates the second hydraulic cylinder 8b for lifting the cutter among the hydraulic adjustment levers 81, 82, and 83 for lifting is operated, the second hydraulic cylinder for lifting the cutter ( Since the piston rod 80b of 8b) appears and operates downward, the disk attachment frame 4 and the rotating drum body 2 fixedly attached to the fixed disk 4 are lowered, and accordingly, the second circular The drum cutter 3b is descended as shown in FIG. 10 , and a plurality of vertical protruding rods 32 upwardly protruding from the upper surface of the second circular drum cutter 3b are located at the lower end of the rotating drum body 2 . Since it descends along the plurality of guide tubes 26 formed on each of the plurality of fixed blades 22 formed, the second circular drum cutter 3b has a plurality of cutter blades 30 formed at the lower end thereof. It descends exactly vertically to the position where it touches the pavement layer (G). (See FIG. 10)

As described above, in a state where the second circular drum cutter 3b is lowered to the road pavement layer G, any one of the speed control lever 71 or the manual handle 76 installed in the hydraulic control unit 7 is operated. Thus, when the rotation speed of the driving motor 5 is adjusted, the second circular drum cutter 3b rotates at the adjusted rotation speed to cut the road pavement layer G, and is formed on the rotating drum body 2 . The center shaft 25 for fixing the center is rotated in a state supported by the shaft seating hole 93 of the centering holder device 9 fixed to the top of the manhole housing 100 .

Accordingly, the first circular drum cutter 3a cuts the road pavement layer G in a circular shape while rotating like the rotating drum body 2, and even in this case, the speed control lever 71 of the hydraulic control unit 7 ) and the cylinder operation control lever 72 to adjust the rotational speed of the drive motor 5 and at the same time descend by the operation of immersing the piston rod 62 of the plurality of lifting hydraulic cylinders 6 into the cylinder 61 . When the speed is adjusted, the rotational speed and the descending speed of the rotating drum body 2 are appropriately adjusted, and accordingly, the second circular drum cutter 3b rotates and descends like the rotating drum body 2 to the road. The pavement layer (G) is circumferentially cut into a circle. At this time, the rotation of the second circular drum cutter (3b) is also rotated and lowered around the center shaft 25 for fixing the center inserted in the shaft seating hole 94 of the centering holder device 9, which is the same as above, and after that The process is the same as above.

And when you want to cut the road pavement layer (G) using the third circular drum cutter (3c), the center shaft (25) for fixing the center formed in the center of the rotating drum body (2) is a manhole housing (100) In a state in which the cutter blade 30 of the third circular drum cutter 3c is lowered to the road pavement layer G while being rotatably supported in the shaft seating hole 94 of the centering holder device 9 fixed to the upper end Control the rotational speed of the drive motor 5 by manipulating any one of the speed control lever 71 or the manual handle 76 installed in the hydraulic pressure control unit 7 and simultaneously operate the cylinder of the hydraulic control unit 7 When the lowering speed is adjusted by operating the adjusting lever 72 to immerse the piston rods 62 of the plurality of lifting hydraulic cylinders 6 into the cylinder 61, the rotating drum body 2 rotates at a rotational speed and The road pavement layer (G) is circumferentially cut around the center shaft (25) for fixing the center inserted into the shaft seating hole (94) of the centering holder device (9) in a state in which the descending speed is appropriately adjusted. Also at this time, the rotation of the third circular drum cutter 3b is also rotated and lowered about the center shaft 25 for center fixing inserted in the shaft seating hole 94 of the centering holder device 9, which is the same as above, and after that The process is also the same as above.

As described above, the present invention, first, the strong cutting reaction force in the circumferential direction of the first, second, and third circular drum cutters of the circular cutter (1) and the downward pressing force applied to the circular drum cutter are applied to the manhole housing (100). The center shaft 25 for fixing the center of the circular cutter 1 inserted into the shaft seating hole 94 of the centering holder device 9 by being resisted and supported by the installed centering holder device 9 is the first of the circular cutter 1 . The radius center of the circular drum cutters of 1, 2, and 3 is maintained as it is, so that only one circle on the circumference is cut. Second, three first, second, and third circular drum cutters with different diameters. It is a useful invention with the characteristic of adopting a hydraulic system that simultaneously selects and fixes a cutter in selecting one cutter and fixing the cutter, so that selection and fixation are quickly and simultaneously performed by a simple hydraulic control lever.

1: Circular cutter 1a, 1b: Upper and lower fixed frame
11: fixed support 12: auxiliary support
2: rotating drum body 21: large interlocking gear
22: fixed wing 23: through hole
24: hydraulic cylindrical drum 24a: hydraulic rotary joint
25: center shaft for fixing center 26: guide tube
3a, 3b, 3c: 1st, 2nd, 3rd round drum cutter
30: cutter blade 31,32,33: vertical stone bar
4: fixed disk 40: disk attachment frame
41: outer end 42: protrusion
43: elevating movable column 44: fixed column
5: drive motor 51; output shaft
52: small drive gear 6: elevating hydraulic cylinder
61,62: cylinder and piston rod 7: hydraulic control unit
71: speed control lever 72: cylinder operation control lever
73, 74, 75: No. 1, No. 2, No. 3 control lever 76: Manual handle
8a, 8b, 8c: Hydraulic cylinder for lifting the first, second, and third cutters
80a, 80b, 80c: piston rod 81, 82, 83: hydraulic control lever for lifting
9: centering holder device 91: support body
92: support support 93: shaft support member
94: shaft seating construction 95: hydraulic cylinder
96: piston rod 97: hydraulic nozzle
100: manhole housing G: road pavement layer

Claims (6)

delete The upper and lower fixed frames 1a and 1b formed in a circular shape, the rotating drum body 2 rotatably installed inside the fixed frames 1a and 1b, and the rotating drum body 2 , A fixed disk (4) formed above the rotating drum body (2) so as to be movable up and down, a drive motor (5) installed on the fixed disk (4), and an upper surface of the rotating drum body (2) The large interlocking gear 21 meshed with the small driving gear 52 axially installed on the output shaft 51 of the driving motor 5 while attached to and connected to, and the rotating drum body 2 are formed in a size that can be wrapped A plurality of circular drum cutters that become a plurality of circular drum cutters, a plurality of fixed posts 11 vertically installed in a state of being fixed at regular intervals to the upper and lower fixed frames 1a and 1b, and the rotating drum body 2 inside The hydraulic cylindrical drum 24 having a hydraulic rotary joint 24a that protrudes from the center of the upper surface of the large interlocking gear 21 formed at the top while being inserted and installed, and the lower end of the cylinder 61 is in the lower fixed frame 1b. A plurality of hydraulic cylinders 6 for lifting and lowering are fixed and the upper end of the piston 62 is connected to the fixed disk 4 so that the rotating drum body 2 is raised and lowered, while the three-way support 92 and hydraulic pressure A centering holder device (9) composed of a cylinder (95) is installed in the manhole housing (100), and the center shaft (25) for fixing the center in the hydraulic cylindrical drum (24) is located in the shaft seating hole (94) of the centering holder device (9). ) in a normal manhole repair assembly equipped with an insertion/rotation shaft
The stator blade 22 is composed of a horizontal wing part extending horizontally from the lower end of the vertical part of the rotating drum body 2, and the stator wing 22 has the first, second. The third hydraulic cylinders for lifting and lowering the cutter (8a, 8b, 8c) and the guide tubes 26 are arranged and fixed each three before and after them as a center, and the diameters are different from each other on the lower side of the fixed wing 22. Three circular drum cutters (3a, 3b, 3c) are installed, while the first and second. The piston rods 80a, 80b, and 80c that are lifted downward from the third hydraulic cylinder for lifting and lowering the cutter 8a, 8b, and 8c, and the vertical stone rod inserted into the guide pipe 26 and lifted downward. (31), (32), (33) the lower end is fixed to the upper surface of the circular drum cutter (3a, 3b, 3c), in this state, each of the first and second. Three circular drum cutters (3a), (3b) (3c) are selective by the protruding and retracting of each piston rod (80a, 80b, 80c) of the hydraulic cylinder (8a, 8b, 8c) for lifting and lowering the third cutter A manhole repair assembly for cutting a columnar circle, characterized in that each is lifted individually, and the vertical stone rods 31, 32, and 33 are also individually lifted accordingly. delete delete The upper and lower fixed frames 1a and 1b formed in a circular shape, the rotating drum body 2 rotatably installed inside the fixed frames 1a and 1b, and the rotating drum body 2 , A fixed disk (4) formed above the rotating drum body (2) so as to be movable up and down, a drive motor (5) installed on the fixed disk (4), and an upper surface of the rotating drum body (2) The large interlocking gear 21 meshed with the small driving gear 52 axially installed on the output shaft 51 of the driving motor 5 while attached to and connected to, and the rotating drum body 2 are formed in a size that can be wrapped A plurality of circular drum cutters that become a plurality of circular drum cutters, a plurality of fixed posts 11 vertically installed in a state of being fixed at regular intervals to the upper and lower fixed frames 1a and 1b, and the rotating drum body 2 inside The hydraulic cylindrical drum 24 having a hydraulic rotary joint 24a that protrudes from the center of the upper surface of the large interlocking gear 21 formed at the top while being inserted and installed, and the lower end of the cylinder 61 is in the lower fixed frame 1b. A plurality of hydraulic cylinders 6 for lifting and lowering are fixed and the upper end of the piston 62 is connected to the fixed disk 4 so that the rotating drum body 2 is raised and lowered, while the three-way support 92 and hydraulic pressure A centering holder device (9) composed of a cylinder (95) is installed in the manhole housing (100), and the center shaft (25) for fixing the center in the hydraulic cylindrical drum (24) is located in the shaft seating hole (94) of the centering holder device (9). ) in the manhole repair system by a normal manhole repair assembly equipped with an insertion and rotation shaft
The stator blade 22 is composed of a horizontal wing part extending horizontally from the lower end of the vertical part of the rotating drum body 2, and the stator wing 22 has the first, second. The third hydraulic cylinders 8a, 8b, and 8c for lifting and lowering the cutter, and three guide tubes 26 are arranged and fixed in front and rear around them, and the diameters are different from the lower side of the fixed wing 22. Three circular drum cutters (3a, 3b, 3c) are installed, while the first and second. The piston rods 80a, 80b, and 80c that are lifted downward from the third hydraulic cylinder for lifting and lowering the cutter 8a, 8b, and 8c, and the vertical stone rod inserted into the guide pipe 26 and lifted downward. (31), (32), (33) the lower end is fixed to the upper surface of the circular drum cutter (3a, 3b, 3c), in this state, each of the first and second. Three circular drum cutters (3a), (3b) (3c) are selective by the protruding and retracting of each piston rod (80a, 80b, 80c) of the hydraulic cylinder (8a, 8b, 8c) for lifting and lowering the third cutter Each is individually lifted, and the vertical stone rods 31, 32, and 33 are also individually lifted, respectively, so that the individual selection of the circular drum cutters 3a, 3b, and 3c is free by the hydraulic engraving lever, and selection and fixing A manhole repair system using a manhole repair assembly for cutting a columnar garden, characterized in that it is made quickly at the same time to maximize the traffic flow efficiency as well as to cut a single, non-variable garden. delete

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