Device and method for assembling annular seam of butt joint between head and cylinder

Abstract

The present invention discloses a device and method for assembling the annular seam between a head and a cylinder, and relates to the technical field of ship and pressure vessel manufacturing. The device comprises a plurality of columns for spacing and surrounding the outside of the head and the cylinder; a head plate assembly comprising a plurality of head plates respectively arranged on the columns; a cylinder plate assembly comprising a plurality of cylinder plates respectively arranged on the columns; a head wedge assembly comprising a plurality of head wedges for being arranged between the head and the head plates; and a cylinder wedge assembly comprising a plurality of cylinder wedges for being arranged between the cylinder and the cylinder plates. The method comprises placing the head in a cylindrical frame surrounded by the columns; inserting the head wedges between the head and the head plates to fix the position of the head; placing the cylinder in the cylindrical frame surrounded by the columns; inserting the cylinder wedges between the cylinder and the cylinder plates to adjust the position of the cylinder and level the misalignment of the annular seam between the head and the cylinder; and welding the head and the cylinder.

Description

Technical Field

[0001] The invention relates to the technical field of ship and pressure vessel manufacturing, and in particular to a device and an assembly method for assembling an annular seam between a head and a cylinder. Background Art

[0002] Currently in the shipbuilding and pressure vessel manufacturing industries, for the butt joints between large cylinders with thicker plates, as well as the butt joints between the heads and cylinders of pressure vessels, it is necessary to level the butt joint misalignment and adjust the butt joint status between the cylinder and the head during assembly.

[0003] In existing technology, to balance misalignment and adjust the state, it is usually necessary to weld a slat on the shell surface and then insert a wedge to balance the misalignment of the butt joint seam. This method requires welding the slat on the head and the shell surface. After the spherical head and shell are welded, the slat needs to be cut and polished, which affects the appearance quality of the assembly. Summary of the Invention

[0004] In response to the defects in the prior art, the purpose of the present invention is to provide a device and assembly method for the annular seam assembly of the head and the cylinder, which can solve the problem in the prior art that a horse plate needs to be welded on the surface of the head and the cylinder, and the horse plate needs to be cut and polished to affect the appearance quality of the assembly.

[0005] In order to achieve the above purpose, the technical solution adopted by the present invention is:

[0006] In one aspect, the present invention provides a device for assembling an annular seam between a head and a cylinder, comprising:

[0007] A plurality of columns, wherein the plurality of columns are arranged at intervals around the outside of the head and the cylinder;

[0008] The end plate assembly and the cylinder plate assembly, the end plate assembly includes a plurality of end plates respectively arranged on the columns; the cylinder plate assembly includes a plurality of cylinder plates respectively arranged on the columns;

[0009] The head wedge block group and the cylinder wedge block group, the head wedge block group includes a plurality of head wedge blocks for being set between the head and the head horse plate to limit the position of the head; the cylinder wedge block group includes a plurality of cylinder wedge blocks for being set between the cylinder and the cylinder horse plate to adjust the position of the cylinder so that the head is aligned with the cylinder.

[0010] In some optional solutions, the head plate is located at a position of the column corresponding to the head opening end.

[0011] In some optional solutions, an in-cylinder support assembly is further included, which is arranged inside the cylinder body, and the in-cylinder support assembly includes:

[0012] central axis;

[0013] A plurality of support rods are distributed along the circumference of the central axis, one end of each support rod is connected to the central axis, and the other end is used to abut against the inner wall of the cylinder.

[0014] In some optional solutions, a connecting rod is provided between two adjacent support rods, and both ends of the connecting rod are connected to the two support rods.

[0015] In some optional solutions, multiple connecting rods of different lengths are arranged in parallel between two adjacent support rods.

[0016] In some optional solutions, a jack is provided on the connecting rod, the bottom of the jack is connected to the outside of the connecting rod, and the top is used to support the inner wall of the cylinder.

[0017] In some optional solutions, the number of support columns is equal to that of the columns, and one end of each support column is connected to the outside of each column, and the other end is used to be connected to the ground.

[0018] On the other hand, a method for assembling the annular seam of a head and a cylinder is provided. The method is implemented using the above-mentioned device for assembling the annular seam of a head and a cylinder, and comprises the following steps:

[0019] Placing the head in the cylindrical frame surrounded by the columns;

[0020] Insert the head wedge between the head and the head plate to fix the position of the head;

[0021] Placing the cylinder in the cylindrical frame surrounded by the columns;

[0022] Insert the cylinder wedge between the cylinder and the cylinder plate, adjust the position of the cylinder, and level the misalignment of the annular seam between the head and the cylinder;

[0023] Weld the head and the cylinder.

[0024] In some optional schemes, after placing the cylinder in the cylindrical frame surrounded by the columns, the method further includes placing the inner cylinder support assembly in the cylinder, and using a jack to fine-tune the cylinder to level the misalignment of the butt joint annular seam between the head and the cylinder.

[0025] In some optional solutions, before placing the head in the cylindrical frame surrounded by the columns, the method further includes determining the sizes of the head plate and the cylinder plate according to the sizes of the head and the cylinder.

[0026] Compared with the existing technology, the advantages of the present invention are: this solution places the head and the cylinder in a cylindrical frame surrounded by multiple columns, inserts the head wedge between the head and the head horse plate to fix the position of the head, inserts the cylinder wedge between the cylinder and the cylinder horse plate, adjusts the position of the cylinder, and levels the misalignment of the butt joint annular seam between the head and the cylinder, and then starts welding work. There is no need to weld horse plates on the head and the cylinder, which solves the problem in the existing technology that horse plates need to be welded on the surface of the head and the cylinder, and the quality of the assembly appearance is affected after the horse plates are cut and polished. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0028] Figure 1 Schematic diagram of the structure of the device for assembling the annular seam between the head and the cylinder in an embodiment of the present invention;

[0029] Figure 2 Schematic diagram of a top view of the inner-cylinder support assembly in the cylinder according to an embodiment of the present invention;

[0030] Figure 3 Schematic diagram of a flow chart of a method for assembling an annular seam between a head and a cylinder according to an embodiment of the present invention;

[0031] In the figure: 1. Head; 2. Cylinder; 31. Head plate; 32. Cylinder plate; 41. Head wedge; 42. Cylinder wedge; 5. Column; 6. Cylinder support assembly; 61. Center shaft; 62. Support rod; 63. Connecting rod; 7. Jack; 8. Support column. DETAILED DESCRIPTION

[0032] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the described embodiments are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0033] The embodiments of the present invention are further described in detail below with reference to the accompanying drawings.

[0034] like Figure 1 As shown, on one hand, the present invention provides a device for assembling an annular seam between a head and a cylinder, comprising:

[0035] Multiple columns 5 are used to be arranged at intervals around the outside of the head 1 and the cylinder 2;

[0036] The end plate assembly 31 and the cylinder plate assembly 32, the end plate assembly 31 includes a plurality of end plates respectively arranged on the columns 5; the cylinder plate assembly 32 includes a plurality of cylinder plates respectively arranged on the columns 5;

[0037] The head wedge block group 41 and the cylinder wedge block group 42, the head wedge block group 41 includes a plurality of head wedge blocks for being set between the head 1 and the head horse plate to limit the position of the head 1; the cylinder wedge block group 42 includes a plurality of cylinder wedge blocks for being set between the cylinder 2 and the cylinder horse plate to adjust the position of the cylinder 2 so that the head 1 is aligned with the cylinder 2.

[0038] In this embodiment, the head 1 and the cylinder 2 are placed in a cylindrical frame surrounded by multiple columns 5, the head wedge is inserted between the head 1 and the head horse plate, the position of the head 1 is fixed, the cylinder wedge is inserted between the cylinder 2 and the cylinder horse plate, the position of the cylinder 2 is adjusted, and the misalignment of the butt joint ring seam of the head 1 and the cylinder 2 is leveled, and then the welding work can be started. There is no need to weld the horse plate on the head 1 and the cylinder 2, which solves the problem in the prior art that the horse plate needs to be welded on the surface of the head 1 and the cylinder 2, and the quality of the assembly appearance is affected after the horse plate is cut and polished.

[0039] In some optional embodiments, the head plate is located at a position where the column 5 corresponds to the open end of the head 1 .

[0040] In this embodiment, the head plate is arranged at the position of the column 5 corresponding to the open end of the head 1, which better limits the position of the head 1.

[0041] like Figure 2 As shown, in some optional embodiments, an in-cylinder support assembly 6 is further included, which is arranged inside the cylinder 2. The in-cylinder support assembly 6 includes: a central axis 61; a plurality of support rods 62 distributed circumferentially along the central axis 61, one end of the support rod 62 is connected to the central axis, and the other end is used to support the inner wall of the cylinder 2.

[0042] In this embodiment, one end of the support rod 62 in the inner support assembly 6 is pressed against the inner wall of the cylinder 2 , thereby better supporting the cylinder 2 and facilitating alignment of the cylinder 2 with the head 1 .

[0043] In some optional embodiments, a connecting rod 63 is provided between two adjacent support rods 62 , and both ends of the connecting rod 63 are connected to the two support rods 62 .

[0044] In this embodiment, the strength of the in-tube support assembly 6 is improved by adding a connecting rod 63 between the support rods 62 .

[0045] In some optional embodiments, a plurality of connecting rods 63 of different lengths are arranged in parallel between two adjacent support rods 62 .

[0046] In this embodiment, a plurality of connecting rods 63 are provided between the support rods 62 to further enhance the strength of the in-tube support assembly 6 .

[0047] In some optional embodiments, a jack 7 is provided on the connecting rod 63 , the bottom of the jack 7 is connected to the outside of the connecting rod 63 , and the top is used to support the inner wall of the cylinder 2 .

[0048] In this embodiment, the position of the cylinder 2 is fine-tuned by the telescopic movement of the jack 7, so as to level the misalignment of the annular seam between the cylinder 2 and the head 1.

[0049] In some optional embodiments, the number of support columns 8 is equal to that of the columns 5 , and one end of each support column 8 is connected to the outside of each column 5 , and the other end is used to be connected to the ground.

[0050] In this embodiment, the stability of the column 5 is improved by connecting the support column 8 to the outside of the column 5.

[0051] In some optional embodiments, the columns 5 , the support columns 8 , the support rods 62 , and the connecting rods 63 are all channel steels, and the head wedges and the cylinder wedges are all wedge-shaped iron blocks.

[0052] In this embodiment, channel steel is used as the material for the column 5, support rod 62 and connecting rod 63, which reduces the cost while ensuring strength. Wedge-shaped iron blocks are used as head wedges and cylinder wedges to improve the stability of the head 1 and cylinder 2 after the annular seam is leveled.

[0053] like Figure 3 As shown, on the other hand, the present invention also provides a method for assembling the annular seam of a head and a cylinder, which is implemented using the above-mentioned device for assembling the annular seam of a head and a cylinder, and includes the following steps:

[0054] S1: Place the head 1 in the cylindrical frame surrounded by the columns 5.

[0055] In some optional embodiments, before placing the head 1 in the cylindrical frame surrounded by the columns 5, the process further includes determining the sizes of the head plate and the cylinder plate according to the sizes of the head 1 and the cylinder 2.

[0056] In this embodiment, the head plate and the cylinder plate are of appropriate sizes according to the sizes of the head 1 and the cylinder 2, which is more conducive to the support of the head and the plate by the device.

[0057] S2: Insert the head wedge between the head 1 and the head plate to fix the position of the head 1.

[0058] The head wedge is used to fill the gap between the head 1 and the head plate to fix the position of the head 1, making it easier to adjust the position of the cylinder 2 later.

[0059] S3: Place the cylinder 2 in the cylindrical frame surrounded by the columns 5.

[0060] In some optional embodiments, after placing the cylinder 2 in the cylindrical frame surrounded by the columns 5, the process also includes placing the in-cylinder support assembly 6 in the cylinder 2, and using the jack 7 to fine-tune the cylinder 2 to level the misalignment of the butt joint annular seam between the head 1 and the cylinder 2.

[0061] In this embodiment, an inner support assembly 6 is provided in the cylinder 2 to support the inner wall of the cylinder 2 , and a jack 7 is used for fine adjustment to facilitate alignment of the head 1 and the cylinder 2 .

[0062] S4: Insert the cylinder wedge between cylinder 2 and the cylinder plate, adjust the position of cylinder 2, and level the misalignment of the annular seam between head 1 and cylinder 2.

[0063] Use the cylinder wedge to fill the gap between the cylinder 2 and the cylinder plate to level the misalignment of the annular seam between the head 1 and the cylinder 2 so that the position of the head 1 and the cylinder 2 meets the assembly requirements.

[0064] S5: Weld the head 1 and the cylinder 2.

[0065] After the misalignment of the annular seam between the head 1 and the cylinder 2 is measured and leveled, they can be directly welded without welding a horse plate on the head 1 and the cylinder 2. This solves the problem in the prior art that a horse plate needs to be welded on the head 1 and the cylinder 2, and the horse plate needs to be cut and polished, which affects the appearance quality of the assembly.

[0066] In the description of this application, it should be noted that the terms "upper" and "lower" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be internal communication between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0067] It should be noted that, in this application, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprising a ..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element.

[0068] The foregoing is merely a list of specific embodiments of the present application, intended to enable those skilled in the art to understand or implement the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application is not limited to the embodiments shown herein, but is intended to conform to the broadest scope consistent with the principles and novel features of the present application.

Claims

1. A device for assembling the annular seam between a head and a cylinder, characterized in that: include: A plurality of columns (5), wherein the plurality of columns (5) are arranged at intervals around the outside of the head (1) and the cylinder (2); A head plate assembly (31) and a cylinder plate assembly (32), wherein the head plate assembly (31) includes a plurality of head plates respectively arranged on the columns (5); and the cylinder plate assembly (32) includes a plurality of cylinder plates respectively arranged on the columns (5); A head wedge block group (41) and a cylinder wedge block group (42), wherein the head wedge block group (41) includes a plurality of head wedge blocks for being arranged between the head (1) and the head plate to limit the position of the head (1); and the cylinder wedge block group (42) includes a plurality of cylinder wedge blocks for being arranged between the cylinder (2) and the cylinder plate to adjust the position of the cylinder (2) so that the head (1) and the cylinder (2) are aligned; The inner cylinder support assembly (6) is arranged inside the cylinder body (2), and the inner cylinder support assembly (6) comprises: central axis (61); a plurality of support rods (62) distributed circumferentially along the central axis (61), one end of each support rod (62) being connected to the central axis, and the other end being used to abut against the inner wall of the cylinder (2); A connecting rod (63) is provided between two adjacent support rods (62), and both ends of the connecting rod (63) are connected to the two support rods (62); a jack (7) is provided on the connecting rod (63), and the bottom of the jack (7) is connected to the outside of the connecting rod (63), and the top is used to abut against the inner wall of the cylinder (2); A plurality of connecting rods (63) of different lengths are arranged in parallel between two adjacent support rods (62); It also includes support columns (8) equal in number to the columns (5), one end of each support column (8) is connected to the outside of each column (5), and the other end is used to be connected to the ground; The assembly of the annular seam between the head and the cylinder using the device for assembling the annular seam between the head and the cylinder comprises the following steps: Place the head (1) in a cylindrical frame surrounded by columns (5); Insert the head wedge between the head (1) and the head plate to fix the position of the head (1); The cylinder (2) is placed in a cylindrical frame surrounded by columns (5); Insert the cylinder wedge between the cylinder (2) and the cylinder plate, adjust the position of the cylinder (2), and level the misalignment of the butt joint between the head (1) and the cylinder (2); The inner support assembly (6) is placed in the cylinder (2), and the cylinder (2) is fine-tuned using a jack (7) to level the misalignment of the butt joint seam between the head (1) and the cylinder (2); Weld the head (1) and the cylinder (2).

2. The device for assembling the annular seam of the head and the cylinder according to claim 1, characterized in that: Before placing the head (1) on the cylindrical frame surrounded by the columns (5), the method further includes determining the sizes of the head plate and the cylinder plate according to the sizes of the head (1) and the cylinder (2).

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