JP2640562B2 - Tube tower dismantling device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial applications]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for dismantling a cylinder tower having various heights, including an unnecessary chimney, which can be safely dismantled.

[Prior art]

In recent years, from the viewpoint of effective use of land along with the transformation of the industrial structure, aging facilities and buildings installed on the premises of factories and the like have been dismantled, and new facilities and construction of buildings have been actively performed. . The safe and prompt dismantling of high-rise chimneys and the like provided in many factories, including chemical plant factories, was also one of the important tasks in installing the above-mentioned new equipment and buildings.

[Problems to be solved by the invention]

By the way, when disassembling a high-rise chimney, etc., conventionally, an operator crosses the scaffold or enters a work cage and climbs up to the vicinity of the upper end of the chimney with a crane, etc. And suspended it on the ground. However, these operations involve danger, and if the high-rise chimney is dismantled by the above-described method, dismantling requires a considerable amount of time, and there are problems in terms of safety and work efficiency. SUMMARY OF THE INVENTION The present invention has been developed as a result of various studies in view of the above points, and an object thereof is to provide a cylinder tower capable of disassembling a high-rise cylinder tower safely, quickly and efficiently. An object of the present invention is to provide a body dismantling device.

[Means for Solving the Problems]

The present invention has the following configuration to effectively achieve the above object. That is, a driving means is provided on a support main body which can be suspended by a crane or the like, a hollow shaft is vertically suspended from the support main body, and a cylindrical body is rotatably fitted to the hollow shaft, and A base end of a first telescopic arm having telescopic means is fixed to the upper part of the body, and a cutter arm is provided downward at a distal end of the first telescopic arm, and a disk cutter is horizontally mounted at a distal end of the arm. The disk cutter allows the disk cutter to cut from the outer peripheral surface of the cylindrical tower body, and a second telescopic arm having telescopic means below the first telescopic arm is rotatable with respect to the cylindrical body. And a centering arm provided with a cutting cylinder tower hook means downwardly at the distal end of the second telescopic arm. Further, a large gear is fixed to the cylindrical body, and a small gear meshed with the large gear. The motor provided on the rotating shaft is (2) A structure in which a tubular tower body insertion device main body fixed to the lower end of the telescopic arm is provided, and a telescopic support tool is provided at a lower portion of the tubular tower body insertion device main body to extend and retract horizontally to support the inside of the tubular tower body. It is.

[Action]

The tube tower body insertion device main body according to the present invention suspended by a crane or the like according to the above configuration is inserted from the upper opening of the tube body to be dismantled. Next, the driving means is operated to extend the telescopic support in the cylindrical tower body, and the end thereof is brought into contact with the inner wall surface of the cylindrical tower body. Also, the motor provided on the main body of the tube insertion device in the tube body is driven, and the cutter arm is rotated together with the first telescopic arm via the small gear, the large gear, and the tube, and the cutter arm is moved. The first telescopic arm to be operated is contracted, and the disk cutter provided at the tip of the cutter arm is gradually brought into contact with the cylindrical tower to be dismantled from the outer surface, and the cylindrical tower is cut. After the cutting is completed, the second telescopic arm for the centering arm is contracted to bring the centering arm closer to the outer surface side of the cut cylindrical tower body, and the cut cylindrical tower body is hooked by the cut cylindrical tower body hook means. Then, the telescopic support of the cylindrical tower body is contracted to release the support of the cylindrical tower body. Thereafter, the cylindrical tower cut along with the apparatus of the present invention is lifted by a crane or the like and lowered to the ground. Such operations are sequentially repeated to dismantle the cylindrical tower body.

【Example】

Hereinafter, an embodiment of the present invention will be described with reference to FIGS. Reference numeral 1 denotes a dismantling device according to one embodiment of the present invention, in which a cylindrical tower 2 has a firebrick a (or a fireproof mortar a) on the inner surface.
Hereinafter, the dismantling device 1 of the embodiment will be described below with reference to a steel pipe chimney X whose outer surface is covered with a steel pipe b. In this disassembly apparatus 1, a driving means 4 is mounted on an upper portion of a support main body 3 as shown in FIGS.
A tube tower cutting device 5 is suspended from the lower part of the column. Various components for cutting the chimney X are provided in the tubular tower cutting device 5. More specifically, the disassembling apparatus 1 will be described. A driving unit 4 for operating each component described above is mounted on the upper part of the support main body 3. As the driving means 4, a generator, a hydraulic unit, a hydraulic pump, a driving motor, and the like are provided. A support plate 10 is suspended below the support body 3, and a hollow shaft 12 is suspended from the center of the support plate 10, and a cylindrical body 14 is rotated by a hollow shaft 12 via a bearing 13. It is fitted outside freely. A pair of first telescopic arms 15 are provided symmetrically on the upper part of the cylindrical body 14, and the base end 15a of each first telescopic arm 15 is fixed to the cylindrical body 14, and the cylindrical body 14 is provided by means described later. It rotates with it. Further, a hydraulic cylinder 16 is built in each first telescopic arm 15 as telescopic means, and the telescopic rod 17 expands and contracts in the horizontal direction by the operation of the hydraulic cylinder 16. A hook-shaped cutter arm 18 having a tip bent downward at 90 ° is fixed to the tip 17a of the telescopic rod 17. Further, a disk cutter 19 that rotates in a horizontal direction is pivotally attached to the tip of the cutter arm 18 so as to be freely rotatable. The chimney X is cut from the outside by the disk cutter 19. Under the first telescopic arm 15, second telescopic arms 20 smaller than the first telescopic arm 15 are horizontally provided at intervals of 120 °, and each base end 20a is provided with a bearing 21. It is rotatably provided on the cylindrical body 14 through the intermediary. Each second telescopic arm 20 has a hydraulic cylinder 22 as a telescopic means like the first telescopic arm 15, and the telescopic rod 23 expands and contracts in the horizontal direction by the operation of the hydraulic cylinder 22. A centering arm 24 is fixed to the distal end 23a of the telescopic rod 23 downward. Further, the centering arm 24 is provided with a hook 25 and a hydraulic cylinder 26 as cutting cylinder tower hook means. A hook 25 is pivotally attached to the tip of the hook 25. The hook 25 is operated by a hydraulic cylinder 26 attached to the centering arm 24, and is hooked on the cut surface of the cut chimney. A large gear 27 is fitted and fixed to the cylindrical body 14 below the second telescopic arm 20, and two small gears 28 mesh with the large gear 27. Each small gear 28 is provided on a rotating shaft 29 of each hydraulic motor 30, and each hydraulic motor 30 is
Is provided on the main body 31 of the cylindrical tower body insertion device fixed to the lower end of the main body. Further, at the lower part of the main body 31 of the tube tower insertion device, there is provided a telescopic support member 32 which expands and contracts in the horizontal direction to support the chimney X. The expansion / contraction support device 32 includes a reaction force jack 33 and a gripper jack 34. The reaction force jack 33 has a circumference at a position facing the disk cutter 19 via a steel pipe b and a firebrick a (or a fireproof mortar a). A plurality of them are arranged at predetermined intervals on the upper side so as to press the wall surface from the inside of the chimney X. A plurality of gripper jacks 34 are arranged at predetermined intervals on the circumference below the reaction force jack 33, and press the wall surface from the inside of the chimney X similarly to the reaction force jack 33. Fix so that it does not rotate. The medium (oil liquid) for operating the hydraulic cylinders, the hydraulic motors and the jacks is sent out from a hydraulic pump provided on the upper part of the support body 3, and the through-hole of the hollow shaft 12 is formed.
It is supplied to each of the above hydraulic cylinders through 12a and the like. Reference numeral 35 denotes a suspension wire, which allows the entire dismantling apparatus 1 to be lifted by a crane Z or the like. A surveillance camera 36 is provided on the support main body 3 to monitor the cutting state of the cylindrical tower 2. The video captured by the surveillance camera 36 is displayed on a monitor TV T (see FIG. 5) on the ground by a radio signal so that each component of the dismantling apparatus 1 can be controlled from the ground. The above-mentioned dismantling device 1 is grasped by a worker in a control room 37 on the ground, while watching the video transmitted from the surveillance camera 36 on the monitor TV T to determine the cutting status of the chimney,
The components of the dismantling device 1 are operated by wireless remote control to cut off the chimney X.
The operation of the crane Z that suspends the dismantling device 1 and the cut chimney x is performed while the worker on the crane Z communicates with the worker who monitors the cutting state on the monitor TV T on the ground. It is operated by a worker mounted on Z. In order to dismantle the chimney X that is no longer required by the dismantling device 1 constructed as described above, first, the dismantling device 1 is lifted by a crane with a wire 35, and the upper portion Y of the chimney X is provided with a cylindrical tower body equipped with each component. The cutting device body 31 is inserted, and the second telescopic arm 20 is placed on the upper end of the chimney X. Next, a generator, a hydraulic unit, a hydraulic pump, and the like as the driving means 4 are operated to operate each cylinder and the like. That is, the telescopic part 23 of the second telescopic arm 20 is contracted to bring the centering arm 24 close to the outer surface of the cut chimney X, and
The upper part of 31 is fixed, and the center of the hollow shaft 12 becomes the center of the chimney X. Then, the gripper jack 34 and the reaction force jack 33 are extended, and their ends are pressed against the refractory brick a (or refractory mortar a) on the inner surface of the chimney. Next, the respective motors 30 provided on the tube tower body insertion device main body 31 are driven to rotate the first telescopic arm 15 and the cutter arm 18 via the small gear 28, the large gear 27, and the cylinder 14. Along with this rotation operation, the telescopic part 17 of the first telescopic arm 15 is contracted,
Disk cutter 19 provided at the end of the cutter arm 18
Is brought into contact with the chimney X from the outside, and the chimney X is cut. When the cutting is completed, the telescopic portion 17 of the first telescopic arm 15 is extended to separate the disk cutter 19 from the cut portion, and the hydraulic cylinder 26 is operated to hook the hook 25 on the cut surface of the cut chimney. Thereafter, the gripper jack 34 and the reaction force jack 33 are housed, respectively, to release the support of the chimney X, and the chimney x cut along with the device according to the present invention is lifted by the crane Z or the like and lowered to the ground. Such operations are sequentially repeated to dismantle the cylindrical tower body.

【The invention's effect】

As described above, according to the tubular tower dismantling device of the present invention, as is apparent from the above description, various tubular towers including a high-rise chimney, a scaffold is built around it, and an Instead of climbing to the top and working, the fish can be cleaved by a crane or the like and cut into a predetermined length to be dismantled. Therefore, the work can be performed safely and promptly, and a great effect can be exhibited in dismantling the high-rise cylindrical tower body.

[Brief description of the drawings]

1 is an explanatory view of a main part of an embodiment of the present invention, FIG. 2 is a cross-sectional view of a main part, FIG. 3 is a cross-sectional view taken along a line A in FIG. 1, and FIG. FIG. 5 is a cross-sectional view of FIG. DESCRIPTION OF SYMBOLS 1 ... Dismantling apparatus, 2 ... Tube tower (chimney X) 3 ... Support body, 4 ... Driving means, 5 ... Tube tower cutting device, 12 ... Hollow shaft, 14 ... Tube, 15 … First telescopic arm, 18… Cutter arm, 19… Disc cutter, 20… Second telescopic arm, 24… Centering arm, 25 …… Hook, 27 …… Large gear, 28 …… Small Gears, 31: The body of the tube tower insertion device, 32: Telescopic support (33: Reaction force jack, 34: Gripper jack).

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Tatsuhiro Furonaga 2-2-2 Matsuzakicho, Abeno-ku, Osaka-shi, Osaka Prefecture Inside Okumura Gumi Co., Ltd. (72) Yoshinori Nakano 2, Matsuzakicho, Abeno-ku, Osaka-shi, Osaka Chome No. 2 Okumura Gumi Co., Ltd.

Claims (1)

(57) [Claims] 1. A drive means is provided on a support main body which can be suspended by a crane or the like, a hollow shaft is suspended from the support main body, and a cylindrical body is rotatably fitted on the hollow shaft. Further, a base end of a first telescopic arm having telescopic means is fixed to an upper part of the cylindrical body, and a cutter arm is provided downward at a distal end of the first telescopic arm, and a disk cutter is provided at a distal end of the arm. A second rotatable means rotatably mounted in a horizontal direction so that the disk cutter can be cut from the outer peripheral surface of the cylindrical tower body, and further provided with a telescopic means below the first telescopic arm;
A telescopic arm is rotatably provided on the cylindrical body, a centering arm provided with a cutting cylindrical tower hook means is provided downwardly at the tip of the second telescopic arm, and a large gear is fixed to the cylindrical body. A motor provided with a small gear meshing with the large gear on a rotating shaft is provided in a main body of the tubular tower body inserting device fixed to the lower end of the second telescopic arm; An apparatus for disassembling a cylindrical tower body, comprising a telescopic support member which is operated to expand and contract in a horizontal direction and is supported inside a cylindrical tower body.