JPS6024299A - Surface-mating device for joint of cylindrical body - Google Patents

Abstract

PURPOSE:To mate easily the surfaces of the welded joints of two cylindrical bodies in the stage of butt-welding both cylindrical bodies by using a surface- mating ring provided with a seat for receiving the surface-mating ring attached to the one cylindrical body and a surface ring provided with a butt-guide attached to the other cylindrical body. CONSTITUTION:A mounting ring 11 is attachably and detachably mounted by means of bolts 12 to the welding end part of a cylindrical body 1A in the stage of butt-welding the cylindrical bodies 1A and 1B. A surface-mating ring 15 provided with plural guides 14 for butting the cylindrical bodies is attached to the upper flange of a seat 13 for receiving the surface-mating ring attached to the outside circumferential surface of said ring 11 and a hole 19 for inserting a spacer 18 for holding a groove gap is pierced to the web part thereof. The body 1B is stacked on the body 1A with said guides 14 as a guide and the dislocating surfaces of both bodies 1A, 1B are mated and thereafter the spacer 18 is removed while the rear side of the groove is welded so that the entire circumference is tack-welded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a skin matching device for cylindrical body joints such as penstocks, chimneys, small diameter tanks, etc.

Figures 1 to 4 show the work process of the conventional cylindrical body joint with different textures, in which a guide plate (2) is placed on the upper edge of the cylindrical body (IA) along the circumference to a minimum. After installing 6 pieces at intervals of 2 to 3 m, hang the cylindrical body (IB) to be connected (see Figures 1 and 4), and use the guide plate (2) as a guide to connect the cylindrical body (1A). ) stack on top. (
(See Fig. 2) When the joints of the circumferential cylindrical bodies (IA) and (IB) have different textures, the skin-matching horse (3) is placed on the outside or inside of the cylindrical body (IA) or (IB) for about 20 to 30 minutes. 60cI
After welding (w) at intervals of n, driving metal holes (4) into the gaps between the four-piece mating horse (3) and the cylindrical body, and sequentially correcting the misalignment of the plates, (see Fig. 6) the circumferential cylindrical body. Perform tack welding (W') of (IA) and (IB), and remove the guide plate (2), skin matching horse (3), gold plate (4), etc. after the tack welding is completed. (Refer to Fig. 4) In the conventional skin-matching work of the cylindrical body joint, it takes time to attach and remove the guide plate and the skin-matching horse for each joint cylinder 7vi, and the skin-matching horse and guide 9
The marks left after the plates were removed must be repaired using a grinder, etc. Furthermore, the stacked cylinders must be hung until the tack welding of the circumferential cylinders is completed, resulting in poor cleaning efficiency and other disadvantages. was there.

The present invention has been proposed to eliminate such drawbacks, and includes a mounting ring that is removably fixed to the butt end of one of the butt-welded cylindrical bodies, and a mounting ring that is attached to the mounting ring. a skin matching link that is fixed so that its mounting position can be adjusted and extends along the butting end of the inner cylindrical body; a cylindrical body butting guide having a number of poles disposed on the skin matching ring;
The present invention relates to a skin matching device for a cylindrical body joint, characterized in that it comprises a suzusa with a number of poles inserted over the skin matching ring and the distal end portion of the cylindrical body butt part.

Since the present invention is constructed as described above, the skin-matching ring is provided with a plurality of guides for butt-welding the cylindrical bodies, which extends to the butt-ends of a set of cylindrical bodies to be butt-welded, and is provided with a plurality of guides for abutting the cylindrical bodies at seven upper portions. The suspended mounting ring is removably fixed to the abutting end of one of the cylindrical bodies. It can be installed so that the gap between the skin matching ring and the one cylindrical body is uniform at each position in the circumferential direction.1 Next, the above-mentioned parts 2 to 3 are butted against the front W11 overlapping ring and the cylindrical body. The cylindrical body is inserted over the separated tip, and the other cylindrical body is suspended over the one cylindrical body using the cylindrical body abutment guide on the skin matching ring as a guide.

In addition, insert a metal or the like into the gap between the skin matching ring and the cylindrical body, and perform the misaligned skin matching of the inner cylindrical body.After completing the mismatched skin matching, , groove J, = (1
While performing tack welding on 11I, remove the aforementioned steel plate 14
V. After completing the tack welding around the entire circumference and removing the metal missing part, the mounting band 9 fixed to the cylindrical body so that it can be coated freely is added to the row together with the skin matching ring on which the guide plate is arranged, and then Afterwards, main welding is performed to join the inner cylindrical body.

As described above, according to the present invention, there is no need for conventional welding installation and removal of guide plates, skin matching horses, etc., and finishing work using a grinder or the like to remove the removal marks, and the work can be performed quickly. The tip gap retaining plate can be placed horizontally with two-point support, the skin matching ring and the bevel tip of the cylindrical body, so it can also be used as a partition to prevent bevel wrap when stacking cylinders. The present invention has many advantages, such as being able to immediately release the crane that suspends the other cylindrical body, improving the operating rate of the crane.

The present invention will be described below with reference to the illustrated embodiments.

(11) is a mounting ring, which is configured to be assembled into a ring shape by connecting two semicircular arc-shaped parts with a tightening bolt, and is a skin matching ring attached to the outer peripheral surface of the mounting ring 01). A skin matching ring (one ring) with a machined cross section with a slightly larger diameter than the cylindrical body (IA) from which a plurality of cylindrical body butting guides (14) are protruded is attached to the strike plate on its upper flange. The lower flange of the skin matching ring a4 has a long groove hole (Io
The mounting ring (11?) is inserted into the mounting ring (11?
), and an insertion hole Ql for a spacer Q8 for maintaining a groove gap is formed in the web portion of the skin alignment ring (151).

Facing the skin matching ring (+5), place the same ring and the cylindrical body (
The mounting ring (11) is fixed to the mounting ring 0υ via bolts αη so that the gap with the cylindrical body (
1A) Insert from the upper end and hold the port 02 in place.
Fixed at 1.

Next, the spacer (18) is inserted through the insertion hole 0 provided in the web portion of the matching ring α and placed on the joint groove surface of the cylindrical body (IA).

Next, hang the cylindrical body (IB) with a crane or the like and attach it to the guide (
Using 14) as a guide, stack them on the cylindrical body (IA) and release the crane.

Next, the cylindrical bodies (IA) and (IB) are matched with each other. In this case, as shown in Fig. 11, the cylindrical body (IB) protrudes outward with a different plate pattern, as shown in Fig. 11. and align the cylindrical bodies (IA) and (IB).

In the opposite case, as shown in FIG.
) to align the cylindrical bodies (IA) and (IB).

After the misalignment is completed in this way, attachment welding is performed on the back side of the groove, the sweater spout is removed, and tack welding is completed all around.

After removing all of the bolts (2) that were inserted in this way, loosen the tightening ring (11) 021, lift the skin alignment ring OQ and arrange it, and then perform the actual welding to form a cylinder. Join bodies (IA) (IB).

In the above embodiment, in order to join the cylindrical body CIAXIT3), which has a reinforcing side attached to the inner surface and a smooth outer surface, the mating device is attached to the outside 11tl of the cylindrical body, or the reinforcing material is not attached to the outer periphery m1, In the case of a cylindrical body with a smooth inward direction,
The skin matching ring Q51 and the mounting ring (Ill) may be manufactured to be slightly smaller than the inner diameter of the cylinder, and may be attached to the butt part of the cylinder from the inside.In this case, the mounting ring (111
The bolt 0η is configured as an expansion bolt.

Also, instead of installing the mounting ring (II) and the skin matching ring on the ten edges of the lower cylinder (1A), add 1 (ν) to the lower edge of the upper cylinder (1B), and then attach the same cylinder ( 1B)
You can also hang it and stack it on the lower cylindrical body (1A).

Furthermore, the mounting ring ←l) may be configured by connecting the intermediate portions of the two semicircular arc portions with a hinge at the vertical axis, or by arranging bolts at six locations and consisting of three arc portions. .

Although the present invention has been described above with reference to embodiments, the present invention is, of course, not limited to such embodiments, and can be modified in various ways without departing from the spirit of the present invention. .

[Brief explanation of the drawing]

Figures 1 to 4 are perspective views showing the process of aligning the skin of a conventional cylindrical body joint, Figure 5 is a vertical cross-sectional side view showing the details of the additional guide plate, and Figures 6 and 7 are respectively the skin alignment process. FIGS. 8 and 9 are a vertical side view and a cross-sectional plan view showing the details of the mating part, and FIGS. 10 is a view taken along the arrow XX of FIG. 8, and FIG. 11 is a view taken along the arrow
Figure 2 and Figure 13 are a view of the first pharynx taken along arrows XX and XX, respectively. (], IA(t)j)...Cylindrical body, (11)...Mounting ring, (+4)...Cylindrical body butting guide, 01
Ka...Skin matching ring, 0 Enoki...S4-Sa Fukudai Tanukito Patent attorney Okamoto 11 3 outsiders Ekigawa Ku"-1\

Claims (1)

[Claims] Butt f? a mounting ring that is removably fixed to the abutting end of one of the pair of cylindrical bodies that are brought into contact with each other; A skin matching ring extending along the skin matching ring, a plurality of cylindrical body butting guides disposed on the skin matching ring, and a plurality of rods inserted across the skin matching ring and the tip portion between the circular-saving body butting portions. A skin matching device for a cylindrical joint, characterized by comprising an R-sa.