A pipe end groove structure

Abstract

The utility model discloses a pipe orifice groove structure, its characterized in that, include: in the pipe wall from the pipe orifice end surface along the length direction is equipped with an opening groove, and another opening groove is equipped with radially symmetrical with opening groove, the groove edge of opening groove is equipped with the first arc surface, and the first arc surface is with first welding spare interpenetration, first welding spare is the plate -like structure, in the pipe orifice end surface, between opening groove and opening groove, one side is equipped with the first bevel, and the other side is equipped with the second bevel, and the first bevel is equipped with the first arc edge, and the second bevel is equipped with the second arc edge, and the first arc edge and second arc edge respectively with second welding spare interpenetration, the pipe orifice end surface extends a circular ring, and the circular ring is connected with the both ends of first arc edge, the both ends of second arc edge, increase the circular ring in the pipe orifice, control the deformation of cutting. After the iron pipe pipe orifice of increasing circular ring processing, can keep the precision of the shape and size of opening groove and bevel, can form more uniform weld shape and size when welding.

Description

Technical Field

[0001] This utility model belongs to the field of welding technology for iron pipes of boom racks, and relates to a pipe bevel structure. Background Technology

[0002] Against the backdrop of the global energy structure's accelerated transition towards cleaner and lower-carbon energy, offshore wind power, as a highly promising renewable energy source, is ushering in unprecedented development opportunities. Its large-scale development and efficient utilization are of vital importance for alleviating the energy crisis, reducing greenhouse gas emissions, and promoting sustainable development. The vigorous development of offshore wind power relies heavily on a series of advanced specialized equipment, among which wind turbine installation vessels are undoubtedly one of the core key pieces of equipment.

[0003] Among the many structural components of a wind turbine installation vessel, the boom support is an essential and crucial part. The boom support provides stable and reliable support for the boom, ensuring its balance and stability when lifting and installing heavy objects such as wind turbine generators, preventing safety accidents caused by swaying or uneven stress. The boom support is typically assembled from multiple steel pipes and plates through welding, and the welding quality directly affects the strength and stability of the entire boom support. Among these steps, beveling the steel pipes is a critical process before welding, requiring precise bevel shape and dimensions. Utility Model Content

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A pipe bevel structure, comprising:

[0006] An opening groove is provided on the pipe wall along the length direction starting from the end face of the pipe opening, and another opening groove is provided radially symmetrically with the opening groove; the groove edge of the opening groove is provided with a first arc surface, and the first arc surface intersects with the first weldment; the first weldment is a plate-shaped structure.

[0007] At the pipe end face, between the opening grooves, a first bevel is provided on one side and a second bevel is provided on the other side. The first bevel has a first arc edge and the second bevel has a second arc edge. The first arc edge and the second arc edge respectively intersect with the second weldment.

[0008] A ring extends from the end face of the pipe opening, and the ring is connected to both ends of the first arc edge and both ends of the second arc edge.

[0009] As a further embodiment of this utility model, ribs are provided at intervals along the length direction of the opening groove.

[0010] As a further embodiment of this utility model, the spacing between the ribs is not less than 300mm.

[0011] As a further aspect of this utility model: the width of the rib is not less than the wall thickness of the pipe; the thickness of the ring is not less than the wall thickness of the pipe.

[0012] As a further aspect of this utility model: the first arc surface and the end face of the first weldment form a first angle, the first angle being 40°-55°.

[0013] As a further embodiment of this utility model: the groove edge of the opening groove is provided with a first arc surface, the connection between the first arc surface and the outer side of the pipe wall is a third arc edge, the connection between the first arc surface and the inner side of the pipe wall is a fourth arc edge, and the third arc edge and the fourth arc edge are 10-20mm apart.

[0014] As a further embodiment of this utility model: the opening groove is provided with rounded corners, and the radius of the rounded corners is 3-6mm.

[0015] As a further embodiment of this utility model, the width connecting the ring to the two ends of the first arc edge and the two ends of the second arc edge is no greater than 15mm.

[0016] As a further embodiment of this utility model: the pipe wall is provided with a mark, which is used to indicate the connection direction between the pipe and the first weldment or the second weldment.

[0017] As a further embodiment of this utility model, the opening groove, the first bevel, and the second bevel are cut using a laser cutting machine.

[0018] The beneficial effects of this utility model are:

[0019] A pipe bevel structure includes an opening groove for connection to a plate-like structure and two bevels for connection to another tubular structure. The plate-like structure is inserted into the two opening grooves, with a first arc surface welded to the plate-like structure. The first and second bevels are inserted into the surface of the other tubular structure, with the first and second arc edges welded to the tubular structure. A circular ring is added to the pipe opening to control the amount of deformation during cutting. When welding the pipe bevel structure to the plate-like or tubular structure, the circular ring is cut off before welding. This pipe bevel structure, with the added circular ring, ensures the accuracy of the shape and size of the opening groove and bevel, resulting in a more uniform weld shape and size during welding. A uniform weld can better withstand external forces, avoiding stress concentration caused by irregular weld shapes, thereby improving the mechanical properties and overall strength of the welded joint. Attached Figure Description

[0020] Figure 1 This is a structural diagram of a pipe bevel structure;

[0021] Figure 2 This is a structural schematic diagram of a boom shelving unit;

[0022] Figure 3 This is a schematic diagram illustrating the relationship between the pipe bevel structure and the welding of the workpiece;

[0023] Figure 4 This is a schematic diagram illustrating the relationship between another type of pipe bevel structure and the welding of the workpiece;

[0024] Figure 5 This is a schematic diagram of another type of pipe bevel structure. Figure 1 ;

[0025] Figure 6 This is a schematic diagram of another type of pipe bevel structure. Figure 2 ;

[0026] Figure 7 yes Figure 6 Schematic diagram of AA section;

[0027] As shown in the figure:

[0028] 1-Opening groove, 11-First arc surface, 111-Third arc edge, 112-Fourth arc edge, 2-First bevel, 21-First arc edge, 3-Second bevel, 31-Second arc edge, 4-Circular ring, 5-Rib, 6-Marker;

[0029] 7-Pipe bevel structure, 8-First weldment, 9-Second weldment, 10-Hanging arm support;

[0030] A - Spacing between ribs, B - Width of ribs, C - Thickness of the ring, D - First angle, E - Distance between the third and fourth arc edges, F - Rounded corner, G - Width connecting the two ends of the first arc edge and the two ends of the second arc edge. Detailed Implementation

[0031] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. It should be understood that this application is not limited to the exemplary embodiments disclosed herein. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0032] In the description of this utility model, it should be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0033] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0034] In the embodiments of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

[0035] A pipe bevel structure, such as Figure 1 As shown, it includes: an opening groove 1 is provided on the pipe wall along the length direction from the pipe end face, and another opening groove 1 is provided radially symmetrically with the opening groove 1; the groove edge of the opening groove 1 is provided with a first arc surface 11, which intersects with the first weldment 8; the first weldment 8 is a plate-shaped structure; on the pipe end face, between the opening groove 1 and the opening groove 1, a first bevel 2 is provided on one side and a second bevel 3 is provided on the other side, the first bevel 2 is provided with a first arc edge 21, the second bevel 3 is provided with a second arc edge 31, the first arc edge 21 and the second arc edge 31 respectively intersect with the second weldment 9; a ring 4 extends from the pipe end face, and the ring 4 is connected to the two ends of the first arc edge 21 and the two ends of the second arc edge 31.

[0036] Specifically, such as Figure 1-4 As shown, a pipe bevel structure is provided, with an opening groove 1 for connection to a plate-like structure, and a first bevel 2 and a second bevel 3 for connection to another tubular structure. The plate-like structure is inserted into the two opening grooves 1, and a first arc surface 11 is welded to the plate-like structure. The first bevel 2 and the second bevel 3 are inserted into the surface of the other tubular structure, and a first arc edge 21 and a second arc edge 31 are welded to the tubular structure.

[0037] When cutting the opening groove 1 and the first bevel 2 and second bevel 3, during the cutting process, heat sources such as laser, plasma arc, flame, or mechanical friction concentrate energy on the surface of the steel pipe, causing the local temperature to rise rapidly above the material's melting point or phase transformation point. At this time, a significant temperature difference is formed inside the steel pipe, and the temperature gradient causes different parts of the material to expand differently, generating internal stress. When the stress exceeds the material's yield strength, plastic deformation is triggered. During the cooling process after cutting, the heat-affected zone and the matrix shrink at different rates, leaving residual tensile or compressive stress, which may lead to deformation or cracking. Therefore, adding a ring 4 at the pipe opening effectively controls the amount of deformation during cutting and avoids excessive heat input on the laser cutting machine that could cause splitting. After the tubular structure is transported to the construction site, the ring 4 is cut manually.

[0038] A pipe end bevel structure, with the addition of a circular ring 4, ensures the accuracy of the shape and size of the opening groove 1 and the bevel, resulting in a more uniform weld shape and size during welding. A uniform weld can better withstand external forces, avoiding stress concentration caused by irregular weld shapes, thereby improving the mechanical properties and overall strength of the welded joint.

[0039] In this embodiment, as Figure 5 and 6 As shown, ribs 5 are spaced apart along the length of the opening groove 1. Specifically, the size and shape of the opening groove 1 are further stabilized. The ribs 5 are retained when cutting the pipe opening, and are manually cut after the tubular structure is transported to the construction site. The spacing A between the ribs 5 is not less than 300mm, thereby ensuring the size and shape of the opening groove 1.

[0040] In this embodiment, as Figure 6 As shown, the width B of the reinforcing rib 5 is not less than the pipe wall thickness; the thickness C of the ring 4 is not less than the pipe wall thickness. Specifically, the reinforcing rib 5 and the ring 4 need to ensure the shape and size of the pipe opening, and also facilitate rapid cutting. The width of the reinforcing rib 5 and the thickness of the ring 4 are not less than the pipe wall thickness. When the wall thickness of the steel pipe is less than 15mm, the width of the reinforcing rib 5 and the thickness of the ring 4 are taken as 15mm. The width of the reinforcing rib 5 and the thickness of the ring 4 can be set to the same dimension to facilitate setting the same parameters during cutting.

[0041] In this embodiment, as Figure 7 As shown, the first arc surface 11 and the end face of the first weldment 8 form a first angle D, which is 40°-55°. Specifically, the angle is 40°-55° when welding the pipe opening and the plate structure to ensure complete fusion at the root of the weld.

[0042] In this embodiment, as Figure 6As shown, the opening groove 1 has a first arc surface 11 on its edge. The connection between the first arc surface 11 and the outer side of the pipe wall is a third arc edge 111, and the connection between the first arc surface 11 and the inner side of the pipe wall is a fourth arc edge 112. The distance between the third arc edge 111 and the fourth arc edge 112 is E10-20mm. The opening groove 1 has rounded corners with a radius of 3-6mm. Specifically, the first arc surface 11 is inclined from the outer side of the pipe wall to the inner side of the pipe wall. The distance between the third arc edge 111 and the fourth arc edge 112 is 10-20mm, and the radius of the rounded corners is 3-6mm to ensure good welding effect between the opening groove 1 and the plate structure.

[0043] In this embodiment, as Figure 6 As shown, the width G connecting the two ends of the ring 4 to the first arc edge 21 and the two ends of the second arc edge 31 is no greater than 15mm. Specifically, the ring 4 will be cut to ensure the shape and size of the tube opening, while also facilitating rapid cutting.

[0044] In this embodiment, as Figure 1 , 5 The pipe wall is marked with a symbol 6, which indicates the connection direction between the pipe and the first weldment 8 or the second weldment 9. Specifically, the symbol 6 is a triangle or an arrow, indicating the connection direction with the first weldment 8 or the second weldment 9. Since the first arc surface 11 of the opening groove 1, the first arc edge 21 of the first bevel 2, and the second arc edge 31 of the second bevel 3 have irregular arcs, which correspond to the first weldment 8 and the second weldment 9 respectively, the welding point can be quickly located when the pipe wall is marked with the symbol 6.

[0045] In this embodiment, the opening groove 1, the first bevel 2, and the second bevel 3 are cut using a laser cutting machine. Specifically, since conventional gas cutting machines have limited adjustable size ranges and multiple angles for a single pipe bevel structure, an automatic laser cutting machine can be used to set the cutting path and perform gas cutting in one pass, ensuring dimensional accuracy. The marking 6 on the pipe wall is also cut using an automatic cutting machine.

[0046] A specific pipe bevel structure plays a decisive role in the welding quality and structural performance of the entire wind turbine installation vessel's boom support 10, ensuring its safe and reliable operation during long-term use. Only by strictly adhering to the requirements of a specific pipe bevel structure during cutting and beveling can favorable conditions be created for subsequent welding work, resulting in a high-quality, highly reliable wind turbine installation vessel boom support 10, thus providing strong support for the development of offshore wind power.

[0047] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0048] The above description of the disclosed embodiments enables those skilled in the art to make or use this 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 this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A pipe bevel structure, characterized in that, include: An opening groove is provided on the pipe wall along the length direction starting from the end face of the pipe opening, and another opening groove is provided radially symmetrically with the opening groove; the groove edge of the opening groove is provided with a first arc surface, and the first arc surface intersects with the first weldment; the first weldment is a plate-shaped structure. At the pipe end face, between the opening grooves, a first bevel is provided on one side and a second bevel is provided on the other side. The first bevel has a first arc edge and the second bevel has a second arc edge. The first arc edge and the second arc edge respectively intersect with the second weldment. A ring extends from the end face of the pipe opening, and the ring is connected to both ends of the first arc edge and both ends of the second arc edge.

2. The pipe bevel structure according to claim 1, characterized in that, Ribs are provided at intervals along the length of the opening groove.

3. The pipe bevel structure according to claim 2, characterized in that, The spacing between the reinforcing bars shall not be less than 300 mm.

4. A pipe bevel structure according to claim 2 or 3, characterized in that, The width of the rib is not less than the wall thickness of the pipe; the thickness of the ring is not less than the wall thickness of the pipe.

5. The pipe bevel structure according to claim 2, characterized in that, The first arc surface and the end face of the first weldment form a first angle, which is 40°-55°.

6. The pipe bevel structure according to claim 2, characterized in that, The opening groove has a first arc surface on its edge, the first arc surface is connected to the outer side of the pipe wall as a third arc surface, and the first arc surface is connected to the inner side of the pipe wall as a fourth arc surface. The third arc surface and the fourth arc surface are 10-20mm apart.

7. The pipe bevel structure according to claim 2, characterized in that, The opening groove has rounded corners with a radius of 3-6 mm.

8. The pipe bevel structure according to claim 2, characterized in that, The width connecting the ring to the two ends of the first arc edge and the two ends of the second arc edge is no more than 15mm.

9. A pipe bevel structure according to any one of claims 5-8, characterized in that, The pipe wall is marked with a mark indicating the connection direction between the pipe and the first or second weldment.

10. A pipe bevel structure according to claim 9, characterized in that, The opening groove, the first bevel, and the second bevel are cut using a laser cutting machine.

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