JP5054549B2 - RC wall demolition device for indoor use - Google Patents

Description

  The present invention relates to an indoor RC wall dismantling apparatus with low noise and low vibration in renewal work of RC structures.

Conventionally, in order to renew an RC structure, there is a dismantling method that efficiently performs generation by suppressing generation of vibrations and impacts. For example, a wall sawing method is known. In this method, an anchor is placed on a wall to be cut, an installation device is installed, and the blade is cut with a blade. A dismantling method using a wire saw is also known (see Patent Document 9).
Japanese Patent Application Laid-Open No. 06-93651

  However, since the above-mentioned wall sawing method requires anchor placement, the noise during construction is large and the work time is limited, so the work efficiency is not good. In addition, the equipment is heavy and difficult to install. Further, in the dismantling method using the wire saw, the earth retaining wall is constructed around the structure, the interior of the retaining wall is excavated, and the upper floor board is exposed, and then the wire saw driving device is installed. However, preparation is necessary until installation of the wire saw, and although the cutting operation itself is fast, it takes time to prepare for the installation of the driving device. The indoor RC wall dismantling apparatus according to the present invention has been proposed in order to solve such problems.

  The gist for solving the above-mentioned problems of the indoor RC wall demolition apparatus according to the present invention is to provide a wall saw equipped with a blade, a rail for moving the wall saw in the left-right direction, and the rail An attachment that swings at a desired angle via the head, and is movable in the front-rear direction and is rotatable in the circumferential direction, and a base machine that is a rigid housing that supports the base of the attachment so as to be movable in the vertical direction; The base machine is provided with a movable means for making the base machine movable, and the base machine is provided with an elastic support that stretches against the floor and the ceiling to take a reaction force, and the blade surrounds the blade. A cover whose one end opening is in contact with the wall is provided, and the cover is drained so that water is supplied to the inside of the cover at the time of cutting and does not leak outside. That is that the supply and discharge unit is provided.

The base machine is limited in size and weight that can be mounted on an elevator having a load capacity of 600 kg or more. Moreover, the opening part of the said cover is provided with the bellows which can be expanded-contracted toward a wall.
Furthermore, it includes that alignment means for aligning the blades along the moving direction of the rail is provided on both sides of the cover.

  According to the indoor RC wall dismantling apparatus of the present invention, the base machine is movable and the telescopic support that takes the reaction force by stretching against the floor and the ceiling is provided. Construction efficiency is improved. In addition, it is composed of six parts at the front, and is of a weight and shape that can be transported by an elevator of about 9 people, so it does not take time and is suitable for renewal work. Furthermore, since the attachment can be fixed by pressing it against the object to be cut, anchor work is not required and problems such as noise are solved.

Since the indoor RC wall demolition apparatus of the present invention is cut with a wall saw, the demolition work is performed with low noise and low vibration. In addition, with respect to the water supply / drainage of the blade, the blade is covered with a cover and the sewage is not scattered around by the water supply / drainage device, which is suitable for renewal work.
Since there is a cover that covers the entire blade, safety during the cutting operation is ensured. Since cutting and dismantling work is performed with this device, it is not necessary to build a scaffold and the construction period is shortened.
By providing alignment means for aligning the blades along the moving direction of the rails on both sides of the cover, the cutting work can be performed smoothly and the work efficiency is improved.

  As shown in FIG. 1, an indoor RC wall dismantling apparatus 1 according to the present invention includes a wall saw 3 equipped with a blade 2, a rail 4 for moving the wall saw 3 in the left-right direction, and the rail 4 The base machine 6 is a rigid housing that swings at a desired angle and is movable in the front-rear direction and is rotatable in the circumferential direction, and the base of the attachment 5 is movable in the vertical direction. And moving means 7 for allowing the base machine to move.

  The base machine 6 is provided with a telescopic steel support 10 that stretches against the floor 8 and the ceiling 9 to take a reaction force. The blade 2 surrounds the blade 2 and has an opening at one end. 11 is provided with a cover 12 made of FRP. The cover 12 is provided with a water supply / drainage device 13 for supplying water to the inside of the cover 12 at the time of cutting and for draining so as not to leak to the outside. .

  For example, as shown in FIG. 1, the base machine 6 is limited to a size and a weight that can be mounted on an elevator 14 having a load capacity of 600 kg or more. This facilitates renewal work. Further, as shown in FIG. 3E, the moving device 7 is composed of, for example, a wheel 7b provided on the frame 7a, and a leg portion 6e that is extended and contracted by a jack of the housing, so that it is suspended at a fixed position. It is something that floats.

  Further, in front of the housing, the attached and fixed attachment 5 is rotated with respect to the horizontal axis by the rotating device 6a, tilted (swinged) by the tilt cylinder 6b, and vertically moved by the attachment lift 6c. Or a device for moving the device.

  As shown in FIG. 3C, the rail 4 is provided to move the wall saw 3 linearly in the left-right direction (for example, about 2 m). By having this steel rail 4, it is possible to cover a wide range of cutting operations by moving in the left-right direction (lateral direction) orthogonal to the front-rear direction and in some cases the vertical direction (vertical direction).

  As shown in FIG. 3 (D), the attachment 5 includes an attachment base 5a that is fixed to the base machine 6 with a pin, an attachment distal end 5b that is expanded and contracted by an expansion / contraction cylinder mounted on the attachment base 5a, There is a wall saw lift 5c provided on the attachment tip 5b and a rail fixing portion 5d for fixing and supporting the rail 4 at two locations.

  As shown in FIG. 4, the attachment base 5a and the attachment tip 5b are connected by a pin 5e, for example, an angle θ (within 5 degrees) in a range in the vertical direction perpendicular to the front-rear direction. Oscillate with. Thereby, the cutting angle of the blade 2 can be adjusted.

  The blade 2 has a diameter of, for example, about φ1200 mm, and is moved in the front-rear direction by the attachment 5, and is further moved in the front-rear direction by the swivel arm 3 a of the wall saw 3 as shown in FIG. Since it can move (dimension a), the conventional work of exchanging the blade 2 with one having a different diameter becomes unnecessary as the cutting depth by the blade increases.

As shown in FIG. 3 (A), the cover 12 covers the blade 2 with a thickness having a margin with respect to the thickness of the blade 2, and the opening can be expanded and contracted toward the wall 11. A rubber bellows 12a made of rubber is provided. Further, as shown in FIG. 5, the cover 12 is composed of two cover pieces 12b and 12c, and a guide rail 12d for the blade 2 is provided therebetween. The cover pieces 12b and 12c are sandwiched between the guide rail 12d from the left and right sides, and are fastened and fixed by a rubber band 15, as shown in FIG.
Further, when the cover 12 moves laterally, wheels 12e for lateral movement are provided to make the movement smooth.

  The cover 12 is provided for ensuring safety at the time of cutting and for recovering a cooling liquid (water) supplied to the blade 2 at the time of cutting. In order to collect the cooling liquid, as shown in FIG. 6, the flexible tube 13a is circulated so that the cooling liquid circulates between the cover 12 using a vacuum cleaner 13 as a water supply / drainage device. Piping.

  The cooling liquid is collected by the vacuum cleaner 13 from one of the discharge ports 13b and 13c provided on both sides of the bellows 12a of the cover 12 through the flexible tube 13a, and dust or the like is provided by a filter provided in the inside thereof. Is removed. The discharge ports 13b and 13c are provided for the case where the cutting work direction of the blade 2 is horizontal cutting and the case of vertical cutting. The cooling liquid is supplied from under the wall saw 3 and discharged from the blade rotation shaft of the wall saw 3 onto the blade 2 surface.

  The method of using such an indoor RC wall demolition apparatus 1 will be described. First, as shown in FIGS. 1 to 2B, the indoor RC wall demolition apparatus 1 is roughly disassembled into about six pieces. The base machine 6 is carried into a desired floor. The base machine 6 is positioned by the moving means 7 in front of the wall 11 to be cut. On the back side of the wall 11, a simple partition 11a for preventing water scattering is installed.

  Next, as shown in FIG. 7A, the attachment 5 is attached to the attachment portion of the rotating device 6a provided on the attachment base 6d of the wall saw lift 6c via the tilt cylinder 6b. The rail 4 is attached and fixed to the attachment 5 by a rail fixing portion 5d. Then, the wall saw 3 is fixed to the rail 4. The swivel arm is driven so that the rotation axis is directed from the rear to the front. The blade 2 is attached to the rotating shaft of the wall saw 3.

  After that, as shown in FIG. 7 (2), the attachment tip 5 b is pushed forward by the telescopic cylinder provided in the base 5 a of the attachment 5, and the end surface of the attachment tip 5 b is applied to the surface of the wall 11. Make contact. Further, as shown in FIG. 7 (3), the base machine 6 is moved forward by the moving device 7 so that the tip 5b of the attachment is perpendicular to the wall 11 in the tilt cylinder 6b. Adjust. Thereafter, the support 10 of the base machine 6 is extended and stretched to the floor 8 and the ceiling 9 to fix the indoor RC wall dismantling apparatus 1.

  The cover 12 is placed on the blade 2 so that the piping and the vacuum cleaner 13 are installed so that the cooling liquid can be circulated. Then, as shown in FIGS. 7 (4) and 2 (C), the wall saw 3 is moved along the rail 4 and moved toward the end, and then the cooling liquid is supplied and recovered by the vacuum cleaner 13. However, primary cutting is started along the marking line indicating the cutting position of the wall 11.

  As shown in FIGS. 8A to 8C, the cutting by the blade 2 in the primary cutting is performed forward by the wall saw lift 5c along the guide rail 12d. As shown in FIG. 8B, when the blade 2 enters the wall 11, the following rubber band 15a connecting one end of the guide rail 12d and the upper end of the wall saw 3 extends.

  Further, as shown in FIG. 8C, the blade 2 cuts deeper, the tension of the following band 15a overcomes, and the bellows 12a contracts and retracts. In this way, the bellows 12a is strongly pressed against the wall 11 as the cutting progresses, so that leakage of the cooling liquid can be prevented. Moreover, it is not necessary to replace the blade with a different diameter in the middle of deep cutting.

  Then, when the blade 2 cuts to a predetermined depth (about 500 mm), this time, as shown in FIG. 7 (5), the blade 2 moves laterally while being cut along the rail 4 as a secondary cut. In this way, for example, as shown in FIG. 1, the wall 11 to be cut is cut along the inking line at the upper and lower positions in the horizontal direction, or the wall saw 3 and the blade 2 are moved in the vertical direction by the rotating device 6a. And the wall 11 is disassembled by cutting it up and down at left and right positions.

  As a second embodiment of the indoor RC wall dismantling apparatus 1 of the present invention, as shown in FIG. 9, positions for aligning the blades 2 along the moving direction of the rails 4 on both sides of the cover 12. A laser transmitter 16 which is a matching means is provided. Due to such positioning means, cutting work is performed while adjusting the cutting position of the blade 2 even during cutting in the lateral direction when the blade 2 is installed along the marking line applied to the wall 11. Can proceed.

It is explanatory drawing which shows the mode of the demolition work by the indoor RC wall demolition apparatus 1 which concerns on this invention. The rear view (A) of the use state of the indoor RC wall demolition apparatus 1 of the same invention, the top view (B) which shows a mode that the indoor RC wall demolition apparatus 1 is carried in by the elevator 14, and cutting the wall 11 It is a partial top view (C). Side view (A) of cover 12, front view (B) of blade 2, side view (C) of wall saw 3 and rail 4, side view of attachment 5, constituting the indoor RC wall dismantling device 1 ( D) is a side view (E) of the base machine 6. It is explanatory drawing (A), (B) explaining the mode of the pin coupling | bonding in the attachment 5. FIG. 3 is a plan view of detailed parts 12a, 12b, 12c, and 12d showing the configuration of the cover 12. FIG. 3 is a schematic explanatory diagram illustrating a cooling liquid circulation recovery structure for a cover 12. FIG. It is explanatory drawing (1)-(5) which shows the cutting | disconnection work by the indoor RC wall demolition apparatus 12 of this invention. It is explanatory drawing (A)-(C) which shows the mode of the cutting | disconnection of the braid | blade 2 by the same RC wall demolition apparatus 1 for indoors, and the mode of degeneration of the bellows 12a in the cover 12 by it. It is a top view for a part of blade 2 and cover 12 part which concern on 2nd Example of the indoor RC wall dismantling apparatus 1 of this invention.

Explanation of symbols

1 indoor RC wall dismantling device,
2 blades,
3 wall saw, 3a swivel arm,
4 rails,
5 attachments, 5a attachment base,
5b Attachment tip, 5c Wall saw lift,
5d rail fixing part, 5e pin,
6 base machine, 6a rotating device,
6b Cylinder for tilting, 6c Lift for attachment,
6d mounting base, 6e leg,
7 moving means, 7a frame,
7b wheels,
8 floors,
9 Ceiling,
10 support,
11 walls,
12 Cover, 12a Bellows,
12b, 12c cover piece, 12d guide rail,
12e wheels,
13 Water supply / drainage device, 13a Flexible tube,
13b, 13c outlet,
14 Elevator,
15 rubber band, 15a tracking band,
16 Laser transmitter.

Claims (4)

A wall saw equipped with a blade,
A rail for moving the wall saw in the left-right direction;
An attachment that swings at a desired angle through the rail and is movable in the front-rear direction and rotatable in the circumferential direction;
A base machine that is a rigid housing that supports the attachment base in a vertically movable manner;
Comprising moving means for allowing the base machine to move,
The base machine is provided with a stretchable support that stretches against the floor and ceiling to take a reaction force,
The blade is provided with a cover that surrounds the blade and whose one end opening is in contact with the wall,
The cover is provided with a water supply / drainage device for supplying water to the inside of the cover at the time of cutting and draining so as not to leak outside,
An RC wall demolition device for indoor use. The base machine is limited to the size and weight that can be mounted on an elevator with a load capacity of 600 kg or more,
The indoor RC wall dismantling apparatus according to claim 1, wherein: The opening of the cover is provided with a bellows that can expand and contract toward the wall,
The indoor RC wall dismantling apparatus according to any one of claims 1 to 2. Alignment means for aligning the blades along the direction of rail movement is provided on both sides of the cover;
The indoor RC wall dismantling apparatus according to any one of claims 1 to 3.

Images