JP2887728B2 - Large structure installation equipment and installation method - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an installation apparatus and method for lifting and installing a suspended load, and more particularly to an installation apparatus suitable for installation of components of a large structure such as a blast furnace and an installation using the same. It concerns the construction method.

[0002]

2. Description of the Related Art The construction or repair of a blast furnace will be described by way of example. The blast furnace iron shell installation method is performed as shown in FIG. In the installation work as shown in the figure, first, a work deck 32 is constructed using a turret surrounding the blast furnace steel shell 30. A main hoist (not shown) is installed on this tower, and, for example, two hanging wires 35a and 35b are hooked on a hook 34 attached to a tip end of the winding wire 33. I have. The clamps 36a, 36b attached to the distal ends of the suspending wires 35a, 35b are engaged with suspending pieces 37a, 37b provided at predetermined intervals on the upper part of the divided iron cover 31, thereby forming the divided iron cover 31. Are suspended from the main lifting machine.

Further, hanging pieces 38a, 38b are provided at predetermined intervals below the divided steel shell 31, and these hanging pieces 38a, 38b are provided with clamps attached to the distal ends of tongue wires 39a, 39b. 40a and 40b are engaged respectively. These tomblines 39a, 39b are stretched through sheaves 41, 42, 43, respectively.
The winch is wound by winches 44a and 44b installed on the work deck 32. Further, the clamps 40a and 40b may be engaged with the hook 34 in some cases.

[0004] That is, in the installation work of the divided steel frame 31, the divided steel frame 31 temporarily placed on the ground is suspended by a main lifting machine and taken into the work deck 32, and the divided steel frame 31 is placed in the center of the tower. The operator B, C operates the winches 44a, 44b according to the instruction of the signer A, and hangs the wire 39.
The a and 39b are wound and laterally pulled to be seated at a predetermined installation position and welded.

Also, Japanese Patent Publication No. 2-61522 discloses that
A work carriage is mounted on a traveling beam that extends across the inside of the blast furnace steel along the radial direction, and the split steel is mounted on the work carriage by the lifting equipment, and the work carriage travels on the traveling beam. There has been proposed a side wall installation method for a large structure in which a divided steel shell is installed at a predetermined installation position by doing so, and a work vehicle used for the installation method.

[0006]

By the way, there are the following problems in the conventional technology for mounting large structures. That is, in the former installation method, the tomb wires 39a, 39b
Is spread over a wide area on the work deck 32, so that it is necessary to regulate other work.
There was a problem in safety because 39b was easily hooked.

[0007] On the other hand, in the latter installation method, it is necessary to install a traveling beam inside the blast-furnace split steel shell and mount a work carriage on the beam, and as the installation progresses, the traveling beam is required. Since it is necessary to sequentially move the beam and the work carriage upward, there is a problem that the installation work requires a large number of people and time, and the work cost increases.

In addition, since it is necessary to change the shape of the work cart and the support structure of the members according to the shape of the member to be installed, there is a problem that the versatility is poor.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to reduce the number of personnel and time required for installation work, thereby reducing the work cost, and to provide a versatile and highly safe installation apparatus and installation for large structures. To provide a construction method.

[0010]

In order to achieve the above object, an apparatus for installing a large structure according to the present invention comprises a hanging beam lifted by a hoist, a plurality of lifting members attached to the lifting beam, and a lifting member. A holder for holding the installation member at the distal end of the member, a winding device mounted on the hanging beam, and an engaging tool attached to the distal end of a winding wire wound around the winding device. It is provided.

In the configuration of the installation device, preferably, the winding device is mounted on each of both ends in the longitudinal direction of the suspension beam.

Preferably, the winding device is rotatably mounted on the suspension beam.

On the other hand, in the method of installing a large structure according to the present invention, a lifting beam is lifted by a lifting machine, the mounting member is hung by a plurality of lifting members, and a winding device mounted on the hanging beam. By winding the winding wire having its distal end engaged with the fixed side, the suspension beam is laterally pulled, and the installation member suspended from the suspension beam is installed at a predetermined installation position.

In the construction of the installation method, preferably, the winding device is mounted on each of both ends in the longitudinal direction of the suspension beam, and the winding wire is wound with the leading end engaged on the fixed side by each winding device. By adjusting the take-up amount, the suspension beam is laterally pulled and the position is adjusted, and the installation member suspended from the suspension beam is installed at a predetermined installation position.

[0015]

According to the construction of the installation device, after the installation member is held by the holders of the plurality of lifting members attached to the suspension beam, and the lifting beam is lifted by the hoist, the installation member is suspended by the suspension beam. Is done. Then, after engaging the engaging member of the winding wire wound on the winding device mounted on the hanging beam on the fixed side, winding the winding wire by the winding device, the hanging beam Is pulled laterally to the fixed side, and an installation member suspended by the suspension beam is installed at a predetermined installation position.

Further, if the winding device is mounted at both ends in the longitudinal direction of the hanging beam, the amount of winding of the winding wire is adjusted by each winding device, whereby the hanging beam is laterally pulled to the fixed side. In addition, the position is finely adjusted, and the installation member suspended by the suspension beam can be more accurately installed.

Further, if the winding device is rotatably mounted on the suspension beam, the winding device is tilted in the direction in which the engagement member of the winding wire is fixed, so that the winding device can rotate from the winding device. The wire is prevented from coming off.

On the other hand, according to the construction of the above-described installation method, first, the lifting beam is lifted by the lifting machine, and the mounting member is hung by the plurality of lifting members. Then, the leading end of the winding wire of the winding device mounted on the suspension beam is engaged with the fixed side, and the winding wire is wound by the winding device.
Then, as the winding wire is wound up, the suspension beam is pulled laterally, and the installation member suspended by the suspension beam is installed at a predetermined installation position.

In the above-mentioned installation method, winding devices are mounted on both ends of the suspension beam in the longitudinal direction, respectively.
The winding amount of the winding wire is adjusted by each winding device. Then, as the winding wire is wound up, the hanging beam is not only laterally pulled to the fixed side, but also its position is finely adjusted, and the installation member suspended by this hanging beam can be accurately and easily adjusted to a predetermined installation position. It is installed in.

[0020]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the apparatus and method for installing a large structure according to the present invention will be described below in detail with reference to the accompanying drawings. As shown in FIG. 1, a large structure installation apparatus 1 of the first embodiment includes a suspension beam 2 that is lifted by a lifting machine (not shown) such as a fixed crane, a traveling crane, or a UNIC. This hanging beam 2
Is made of, for example, an H steel material, and its longitudinal dimension is set to be larger than the maximum hanging point interval of the installation member 3.

At both upper ends of the suspension beam 2, hook wires 5, 6 for hooking on the hooks 4 of the hoist are attached. Specifically, the base ring portions of the hooking wires 5 and 6 are hooked on the hook 4, and clamps (not shown) are respectively attached to the distal end ring portions. Each clamp is engaged with a suspension piece 7, 8 which is welded and fixed to both upper ends of the suspension beam 2. In this embodiment, the hook wires 5 and 6 are attached to the upper and lower ends of the suspension beam 2, but the invention is not limited to this. Etc. may be used.

At the lower end portions of the suspension beam 2, engagement fittings (not shown) are welded and fixed, and these engagement fittings are clamped to the base wires of the suspension wires 9 and 10 (clamps). (Not shown) is engaged. On the other hand, holders 11 such as clamps and hooks for holding the installation member 3 are attached to the distal ends of the suspension wires 9 and 10, respectively. The holder 11 directly holds the installation member 3 or is engaged with a suspension piece (not shown) temporarily fixed to the installation member 3 to hold the installation member 3.

In this embodiment, the suspension wires 9, 10 are attached to the lower ends of the suspension beam 2, but the invention is not limited to this, and another lifting member such as a chain may be employed. . In addition, the installation apparatus 1 of the present embodiment has a high utilization 2
Although the present invention has been described as a point hanging installation apparatus, the present invention is not limited to this, and a multi-point hanging installation apparatus having three or more hanging wires below the hanging beam 2 can be used.

A winding device 14 such as a winch having a mechanism for winding or rewinding the winding wire 12 is mounted on the suspension beam 2. In the present embodiment, two winding devices 14a and 14b are mounted at both ends in the longitudinal direction on the suspension beam 2, and each of the winding devices 14a and 14b is mounted.
14b is mounted inside the suspending pieces 7, 8 so that the wound wires 12a, 12b do not contact the hooking wires 5, 6. Further, each winding device 14a, 14b can be fixed at the both ends in the longitudinal direction on the suspension beam 2 by inclining outward in both longitudinal directions, respectively, to form a C-shape. It is preferable to prevent the wires 12a and 12b from coming off. Each of the winding devices 14a and 14b is configured to perform a winding or rewinding operation by operating a pendant button, for example.

[0025] At the distal ends of the winding wires 12a and 12b wound around the winding devices 14a and 14b, engaging members 13a and 13b such as clamps and hooks are attached. These engaging members 13a and 13b are, for example, engaging pieces 16 attached to a fixed side such as a column of a tower (not shown).
a and 16b. In particular,
The engaging members 13a and 13b are engaged and fixed on the fixed side in the direction in which the mounting member 3 is to be laterally pulled to the installation position. That is, the fixed side is located outside the installation position with respect to the initial suspension position by the hoist.

Next, the operation of the first embodiment will be described with reference to the method of installing a large structure according to the present invention. The installation method for a large structure according to the present embodiment is performed using the installation apparatus 1 described above. First, when the blast furnace steel is installed by the holders 11 of the hanging wires 9 and 10 attached to the hanging beam 2, the installation members 3 such as the split steel are held and the upper ends of the hanging beam 2 The attached hook wires 5 and 6 are hooked on the hook 4 of the hoist.

Next, by winding up the winding wire of the hoist and raising the hook 4 attached to the tip of the lifting wire, the hanging beam 2 is lifted and the installation member 3 temporarily placed on the ground is placed on the work deck 15. And the installation member 3 is suspended at a central portion in a tower (not shown).

Then, the operator operates each of the winding devices 14a, 14a.
b, while the unwinding wire 12a, 12b is unwound and pulled back, the engaging members 13a, 13a,
13b is engaged and fixed to engaging pieces 16a, 16b attached to a fixed side such as a column of a tower, for example.

Thereafter, the respective winding devices 14a and 14b are operated by operating a pendant button, and the winding wire 12 is operated.
When a and 12b are wound up, the hanging beam 2 is laterally pulled to a fixed side such as a column of the tower, and the installation member 3 suspended by the hanging beam 2 is seated at a predetermined installation position and is installed by welding. Is what you can do.

If the suspension beam 2 is only to be pulled laterally to the fixed side, a single winding device 14 may be mounted on the suspension beam 2. In particular, in this embodiment, the suspension beam 2
Since the two winding devices 14a and 14b are mounted at both ends in the upper longitudinal direction, by adjusting the winding amount of the winding wires 12a and 12b of each of the winding devices 14a and 14b, the suspension beam 2 can be adjusted. Can be finely adjusted as well as being laterally pulled to the fixed side, and the installation member 3 suspended on the suspension beam 2 can be more accurately installed.

After completion of the installation, the winding wires 12a and 12b are rewound by operating the respective winding devices 14a and 14b by operating a pendant button, and the installation device 1 is returned to the center of the tower. Then, the engaging members 13a and 13b of the winding wires 12a and 12b are removed from the fixed side, the winding wire of the hoist is wound up, and the process proceeds to the next installation work of the installation member 3.

As described above, according to the installation method of the present embodiment using the installation apparatus 1 of the first embodiment, it is possible to reduce the number and time of the installation work as compared with the conventional installation method. As a result, work costs can be reduced. Also, as in the conventional installation method, the work deck 1
Since there is no need to run a tomb line on the top 5, work safety can be ensured. Further, since the device structure is not affected by the shape of the mounting member 3 and the like, the versatility is high. In particular, this embodiment is extremely effective when the entrance of the installation member 3 is restricted.

FIG. 2 is a schematic view showing a main part of a second embodiment of the apparatus for installing a large structure according to the present invention. As shown in the drawing, in the installation device 21 of the second embodiment, the winding devices 14a and 14b are rotatably mounted on both ends of the hanging beam 2 in the longitudinal direction. More specifically, rotating pedestals 22 are provided at both ends in the longitudinal direction of the suspension beam 2, and the winding devices 14 a and 14 b are mounted on each of the rotating pedestals 22.

The second embodiment basically has the same function and effect as the first embodiment. In particular, in the second embodiment, the winding devices 14a and 14b are connected to the suspension beams 14a and 14b. 2
Is mounted on a rotating pedestal 22 provided on the winding wire 12a, the winding devices 14a, 14b are rotated by the rotating pedestal 22 in a direction in which the engaging members 13a, 13b of the winding wires 12a, 12b are fixed. By tilting the
It is possible to prevent the wound wires 12a, 12b from being detached from the wires 4a, 14b.

[0035]

As described above, according to the apparatus and method for installing a large structure according to the present invention, the number of personnel and time required for the installation work can be reduced, and the work cost can be reduced. It has an excellent effect of being rich and highly safe.

[Brief description of the drawings]

FIG. 1 is a schematic view showing a first embodiment of a large structure installation apparatus according to the present invention.

FIG. 2 is a schematic view showing a main part of a second embodiment of the apparatus for installing a large structure according to the present invention.

FIG. 3 is a schematic view showing an example of a conventional large-structure installation method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Installation apparatus 2 Hanging beam 3 Installation member 4 Hook 5, 6 Hanging wire 7, 8 Hanging piece 9, 10 Hanging wire 11 Holder 12, 12a, 12b Winding wire 13a, 13b Engagement tool 14, 14a, 14b Winding Picking device 15 Work deck 21 Installation device 22 Rotating pedestal 30 Blast furnace steel 31 Split steel 32 Work deck 33 Winding wire 34 Hook 35a, 35b Hanging wire 36a, 36b Clamp 37a, 37 Hanging piece 38a, 38b Hanging piece 39a, 39b Tobi wire 40a, 40b Clamp 41, 42, 43 Sheave 44a, 44b Winch A Signaler B, C Operator

──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Kiyotaka Oe 46-59 Ohara Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Nippon Steel Corporation Machinery & Plant Business Department (72) Inventor Mitsuo Sasaki 20 Shintomi, Futtsu-shi, Chiba -1 Inside Nippon Steel Corporation Technology Development Division (72) Inventor Akira Tanaka 59 Nippon Steel Plant Design Co., Ltd., 46-46 Nakahara, Tobata-ku, Kitakyushu-shi, Fukuoka Prefecture (56) References JP-A-58-207287 (JP, A) JP-A 62-89279 (JP, U) JP-A 3-100272 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B66C 1/00-1 / 68 B66C 13/08

Claims (5)

(57) [Claims] 1. A lifting beam to be lifted by a lifting machine, a plurality of lifting members attached to the lifting beam, a holder for holding an installation member at a tip of the lifting member, and a winding mounted on the lifting beam. An installation device for a large structure, comprising: a take-up device; and an engaging tool attached to a distal end portion of a winding wire wound around the take-up device. 2. The installation apparatus for a large structure according to claim 1, wherein said winding devices are respectively mounted on both ends in the longitudinal direction of said suspension beam. 3. The large structure installation apparatus according to claim 1, wherein the winding device is rotatably mounted on the suspension beam. 4. A winding in which a lifting beam is lifted by a lifting machine, an installation member is hung by a plurality of lifting members, and a leading end thereof is engaged with a fixed side by a winding device mounted on the lifting beam. An installation method for a large structure, wherein the suspension beam is laterally drawn by winding a wire, and an installation member suspended from the suspension beam is installed at a predetermined installation position. 5. The winding device is mounted on each of both ends in the longitudinal direction of the suspension beam, and the amount of winding of the winding wire whose leading end is engaged on the fixed side by each winding device is adjusted. 5. The method for installing a large structure according to claim 4, wherein the suspension beam is laterally pulled and adjusted in position, and an installation member suspended therefrom is installed at a predetermined installation position.