CN210046257U

CN210046257U - Auxiliary assembly tool for large-diameter thin-wall barrel

Info

Publication number: CN210046257U
Application number: CN201920667278.2U
Authority: CN
Inventors: 齐阔; 张媛媛
Original assignee: Shanxi Feng Xi Chemical Equipment Co Ltd
Current assignee: Shanxi Feng Xi Chemical Equipment Co Ltd
Priority date: 2019-05-10
Filing date: 2019-05-10
Publication date: 2020-02-11
Anticipated expiration: 2029-05-10

Abstract

The utility model relates to an in-process thin wall barrel group that pressure vessel made is to auxiliary fixtures, specifically is major diameter thin wall barrel group to auxiliary fixtures. The problem of lack major diameter thin wall barrel group and to the auxiliary fixtures is solved. The large-diameter thin-wall cylinder assembly auxiliary tool comprises a wedge, a long hole plate and a stop pin, wherein the long hole plate is a plate body with a long hole in the middle, the wedge and the stop pin can be placed into the long hole, the long hole plate is inserted into an opening between two groups of opposite thin-wall cylinders, one end of the long hole is positioned in the thin-wall cylinder, the other end of the long hole is positioned outside the thin-wall cylinder, the stop pin is inserted into one end of the long hole positioned in the thin-wall cylinder, the wedge is inserted into one end of the long hole positioned outside the thin-wall cylinder, or the wedge is inserted into one end of the long hole positioned in the thin-wall cylinder, the stop pin is inserted into one end of the long hole positioned outside the. The misalignment amount of the welding seam assembled by the tool can be controlled within the range of standard requirements, and the clearance is consistent, so that the straightness requirement of the cylinder body can be controlled.

Description

Auxiliary assembly tool for large-diameter thin-wall barrel

Technical Field

The utility model relates to an in-process thin wall barrel group that pressure vessel made is to auxiliary fixtures, specifically is major diameter thin wall barrel group to auxiliary fixtures.

Background

In the process of manufacturing the pressure vessel, two large-diameter thin-wall cylinders need to be welded in an assembly mode, and due to various reasons, the misalignment of the welding seam to the interface is inevitable. Due to the presence of the misalignment, additional stress will inevitably be generated at the weld, directly affecting the uniformity of the stress distribution, causing stress concentration. But also the aesthetics of the weld. GB150 has strict requirements on misalignment amount, but the national standard requirements are difficult to meet due to the lack of auxiliary tools in the manufacturing process.

Disclosure of Invention

The utility model provides a lack the problem of major diameter thin wall barrel group to auxiliary fixtures, provide a simple structure, install and remove convenient, low cost's major diameter thin wall barrel group to auxiliary fixtures.

The utility model discloses an adopt following technical scheme to realize: the large-diameter thin-wall cylinder assembly auxiliary tool comprises a wedge, a long hole plate and a stop pin, wherein the long hole plate is a plate body with a long hole in the middle, the wedge and the stop pin can be placed into the long hole, the long hole plate is inserted into an opening between two groups of opposite thin-wall cylinders, one end of the long hole is positioned in the thin-wall cylinder, the other end of the long hole is positioned outside the thin-wall cylinder, the stop pin is inserted into one end of the long hole positioned in the thin-wall cylinder, the wedge is inserted into one end of the long hole positioned outside the thin-wall cylinder, or the wedge is inserted into one end of the long hole positioned in the thin-wall cylinder, the stop pin is inserted into one end of the long hole positioned outside the. The auxiliary tools are at least adopted in two sets during pairing and are uniformly distributed around the thin-walled cylinder. After the two groups of the thin-wall cylinders are aligned, the butt joint between the two thin-wall cylinders is fixed by spot welding, the wedge iron is firstly pulled out, and then the long hole plate is pulled out, so that the butt joint between the two thin-wall cylinders is completed.

Auxiliary fixtures simple structure, install and remove convenience, low cost, use leftover bits processing to form, repeatedly usable. The misalignment amount of the welding seam assembled by the tool can be controlled within the range of standard requirements, and the clearance is consistent, so that the straightness requirement of the cylinder body can be controlled.

Drawings

FIG. 1 is a schematic view of the assembly structure and the operation state of the present invention;

FIG. 2 is an enlarged view of a portion of FIG. 1;

FIG. 3 is a schematic diagram of a slotted-plate structure;

FIG. 4 is a top view of FIG. 3;

FIG. 5 is a schematic structural view of a wedge;

fig. 6 is a schematic structural view of the catch pin.

In the figure: 1-wedge iron, 2-long hole plate and 3-stop pin.

Detailed Description

The auxiliary assembly tool for assembling the large-diameter thin-wall cylinder comprises a wedge 1, a long hole plate 2 and a stop pin 3, wherein the long hole plate 2 is a plate body with a long hole in the middle, and the wedge 1 and the stop pin 3 can be placed into the long hole; the long hole plate 2 is inserted into the butt joint between the two sets of the thin-wall cylinders, one end of the long hole is positioned in the thin-wall cylinder, the other end of the long hole is positioned outside the thin-wall cylinder, the stop pin 3 is inserted into one end of the long hole positioned in the thin-wall cylinder, the wedge 1 is inserted into one end of the long hole positioned outside the thin-wall cylinder, or the wedge 1 is inserted into one end of the long hole positioned in the thin-wall cylinder, the stop pin 3 is inserted into one end of the long hole positioned outside the thin-wall cylinder, and the two thin-wall cylinders are aligned by. The auxiliary tools are at least adopted in two sets during pairing and are uniformly distributed around the thin-walled cylinder. After the two groups of thin-wall cylinders are aligned, butt-welding fixing is carried out on butt-joints between the two thin-wall cylinders, then the wedge iron 1 is pulled out, and then the long pore plate 2 is pulled out, so that the assembly work between the two thin-wall cylinders is completed (when the vertical type group is aligned as shown in figure 1, the upper thin-wall cylinder is always hung by a travelling crane to ensure that a welding seam is left between the two groups of butt-thin-wall cylinders, so that the long pore plate 2 can be pulled out smoothly). In specific implementation, the wedge 1 is a right-angle wedge, so that the top surface of the wedge 1 is a plane after the wedge 1 is inserted into the long hole, and the wedge 1 can be beaten conveniently. The cross section of the stop pin 3 is circular to ensure the close contact between the stop pin 3 and the thin-wall cylinder, further reduce the misalignment amount and improve the assembly precision.

Claims

1. The auxiliary assembly tool for assembling the large-diameter thin-wall cylinder is characterized by comprising a wedge (1), a long hole plate (2) and a stop pin (3), wherein the long hole plate (2) is a plate body with a long hole in the middle, and the wedge (1) and the stop pin (3) can be placed into the long hole; the long hole plate (2) is inserted into the butt joint between the two sets of the thin-wall cylinders, one end of the long hole is positioned in the thin-wall cylinder, the other end of the long hole is positioned outside the thin-wall cylinder, the stop pin (3) is inserted into one end of the long hole positioned in the thin-wall cylinder, the wedge (1) is inserted into one end of the long hole positioned outside the thin-wall cylinder, or the wedge (1) is inserted into one end of the long hole positioned in the thin-wall cylinder, the stop pin (3) is inserted into one end of the long hole positioned outside the thin-wall cylinder, and the two thin-wall cylinders are aligned by downward movement.

2. The assembly auxiliary tool for the large-diameter thin-wall cylinder body according to claim 1, wherein the wedge (1) is in a right-angle wedge shape, so that the top surface of the wedge (1) is a plane after the wedge is inserted into the long hole.

3. The large-diameter thin-wall cylinder assembly auxiliary tool according to claim 1 or 2, characterized in that the cross section of the stop pin (3) is circular.