JPS6140849Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention is an assembly device used when assembling relatively large-diameter cylindrical structures sequentially by stacking unit cylindrical bodies using the lift-up method, in particular, a lift device, a trolley, etc. and improvements to assembly equipment consisting of scaffolding and the like.

In the lift-up method, in which the entire cylindrical structure is assembled by sequentially pushing up relatively large-diameter unit cylindrical bodies from below, conventionally, the structure shown in Figures 1 to 3 was generally used. Scaffolding is used. That is, as shown in FIG. 1, the unit cylindrical bodies 1, 2, and 3 that are successively pushed up from below are provided with perfect circle holders on their inner surfaces to prevent the cylindrical bodies from deforming during transportation. 4 (FIG. 3) or triangular bracket 5 (FIG. 2), but conventionally, these perfect circle holders 4 or triangular brackets 5 were also used as they were as scaffolds. If it is simply used as a scaffold for assembly, it is sufficient to provide triangular brackets 5, 5 on the upper and lower sides as shown in Fig. 1, but these will be dismantled later by hand. Therefore, a dismantling scaffold 5' is also required at the middle level. Conventionally, such a large number of scaffolds was uneconomical, and dismantling a large number of scaffolds was also problematic from a safety point of view.

The present invention eliminates the above-mentioned drawbacks, and allows assembly work to be carried out using the lift-up construction method, which is highly safe and effective, by providing a minimum number of scaffolds for assembly and inspection on the upper and lower levels with extremely simple operation. This was done for the purpose of providing an assembly device.

To this end, the device of the present invention has a structure in which the assembly scaffold is constructed as a ring-shaped body that can be housed inside the unit cylindrical body, and can be separated vertically into two bodies at approximately the same height as the unit cylindrical body. Each unit cylindrical body is equipped with a support device to support the internal scaffold so that it can be lifted up as a unit with one separated scaffold stored inside. A unit cylindrical body and one scaffold placed on the trolley are provided on the inner circumferential surface thereof, and a lifting mechanism for connecting the unit cylindrical body and one scaffold to the upper cylindrical body and the upper stage scaffold stored inside the dolly is used. It is characterized by being attached with a lifting device that can be operated independently.

The present invention will be explained in detail below with reference to the embodiments shown in the drawings. In Fig. 4, 6 is a steel frame;
7 is a support fitting that supports the jack 8 at the lower end;
These steel frames, jacks, supporting metal fittings, etc. constitute a lifting device for pulling up a cylindrical structure, which will be described later. Reference numerals 9 and 10 (see FIG. 6 and below for 10) are an upper scaffold and a lower scaffold that can be separated from each other, and the height of each is approximately equal to the height of the unit cylindrical bodies 1, 2, 3, . . . It is housed inside a cylindrical body. 11 is each unit cylindrical body 1, 2,
3, . . . are attached to support fixtures capable of supporting and fixing the scaffold 9. Reference numeral 12 is a bracket attached to the scaffold 9 for support.
Reference numeral 13 denotes a transport trolley for transporting the unit cylindrical bodies 1, 2, . . .
0, and a function for raising and lowering the unit cylindrical body by a method described later. For example, a lifting device 14 (see FIG. 6) for raising and lowering the scaffolding 10 by a certain height and width, and a lifting device 15 for raising and lowering the cart itself by a certain height and width are both attached to the cart. 16 and 17 in Figure 6.
are scaffold joints that are distributed and attached to two scaffolds 9 and 10, respectively.

With the above configuration, the first unit cylindrical body 1 with the upper scaffold 9 inserted into it is placed on the trolley 13, transported to the installation position of the cylindrical structure, and the cylindrical body 1 so that it can be pulled up with the jack 8 (Fig. 4). At this time, it is assumed that the upper scaffold 9 is already supported and fixed to the unit cylindrical body 1 by the bracket 12 and the support fixture 11.
After the unit cylindrical body 1 is pulled up together with the scaffolding inside by the jack 8 and becomes the state shown in FIG. Place the second unit cylindrical body 2 on top. At this time, the lower scaffolding 10 is also placed inside the unit cylindrical body 2, and the trolley 13 is sent back to the original installation position of the cylindrical structure. When the lifting device 15 of the cart is operated at that position, the lower scaffolding 10 is raised by a certain height and width together with the unit cylindrical body 2, and the lower scaffolding 10 is further raised by the lifting device 14. If joint 17 rises to an appropriate height position, joint 1
6 and 17 are connected together, and using the connected scaffold, the unit cylindrical bodies 1 and 2 are connected to the joint 1 shown in FIG.
Perform the assembly work of the cylindrical bodies according to step 8. After the assembly is completed, the bracket 12 of the upper scaffolding 9 and the unit cylindrical body 1
(Thus, at this time, both scaffolds are no longer connected to the unit cylindrical body and are supported by the trolley 13), and the unit cylindrical body 1 that has already been integrated is released. , 2 is raised by the height of the almost integral unit cylindrical body using a jack, and the upper scaffolding 9 is raised.
The bracket 12 is received by the support fixture 11 of the second unit cylindrical body 2 (FIG. 8). Next, as shown in FIG. 9, the lower scaffold 10 is lowered using the lifting device 14 to separate the joints 16 and 17 of both scaffolds, and the lifting device 15 is further lowered to remove the trolley 10.
lower it to a level where it can be moved.

The cart in this state (with the lower scaffold loaded) is moved to the unit cylindrical body delivery place, the scaffold 10 on the cart is left as it is, and the third unit cylindrical body 3 is moved.
is placed on the trolley in such a way that the scaffolding 10 is contained therein, and the above-mentioned series of operations are repeated.
As a result, the height of the cylindrical structure increases by one stage of the unit cylindrical body.

The present invention uses a pair of scaffolds, which can be separated into two, for the upper and lower levels, and allows the upper and lower scaffolds to be connected and disconnected at will by means of supporting materials between each unit cylindrical body. In addition, by making it possible to raise and lower the cylindrical body and the upper and lower scaffolds simultaneously or individually, it is possible to construct a multi-level stacked cylindrical structure using only one set of upper and lower scaffolds during the entire construction work. Furthermore, assembly work and inspection work can be carried out simultaneously and in parallel using these upper and lower scaffolds. Therefore, the number of days required for the lift-up cycle is reduced, resulting in an economical effect by shortening the process, and the scaffolding structure is made into a unit, simplifying the work, resulting in an improved chimney barrel lift-up construction method that is highly effective in safety. There are effects that can be achieved.

[Brief explanation of drawings]

Fig. 1 is a front sectional view showing the construction equipment of the conventional construction method, Fig. 2 is a plan view showing the conventional example of the unit cylindrical body,
FIG. 3 is a plan view showing another conventional example of a unit cylindrical body, and the seven figures from FIG. 4 to FIG. 10 are front views showing the implementation device and its working order according to the present invention. 1...First unit cylindrical body, 2...Second unit cylindrical body, 3...Third unit cylindrical body, 6
...Steel frame, 7...Supporting metal fittings, 8...Jacket, 9
...Upper scaffolding, 10...Lower scaffolding, 11...Supporting fixture, 12...Bracket, 13...Dolly, 1
4, 15... Lifting device, 16, 17, 18... Joint.

Claims (1)

[Scope of utility model registration request] A lifting device for lifting up and down the entire cylindrical structure formed by a plurality of relatively large-diameter unit cylindrical bodies connected one above the other in a vertical relationship; A transportation trolley for transporting the next lower unit cylindrical body to a position below the unit cylindrical body, and a storage vehicle inside the cylindrical body for use when assembling the cylindrical bodies in vertically related positions. In this apparatus, the scaffold is constructed as a ring-shaped body that can be stored inside the cylindrical body, and the scaffold is constructed as two bodies having approximately the same height as the unit cylindrical body. Structured in two layers that can be separated vertically, each unit cylindrical body has a support for supporting the internal scaffold so that it can be lifted up as a unit with one separated scaffold stored inside. A device is provided on the inner circumferential surface of the trolley, and the unit cylindrical body and one scaffold placed on the trolley are connected to the cylindrical body of the upper stage body and the upper stage scaffold stored inside the trolley. 1. An assembly device for a cylindrical structure, characterized in that an assembling device for a cylindrical structure is attached to an elevating device that can independently perform elevating and lowering operations.