Fixing tool for circular seam submerged arc welding of switching section of wind power tower

Abstract

The utility model relates to the technical field of submerged-arc welding fixation, in particular to a fixing tool for circular seam submerged-arc welding of a switching section of a wind power tower, which comprises a supporting table, supporting rollers are mounted on two sides of the surface of the supporting table, and the switching section is arranged between the supporting rollers; the three sets of limiting wheels are arranged, the surfaces of the limiting wheels are attached to one end of the switching section, and the limiting wheels are installed on the surface of the transverse plate; the device has the beneficial effects that the switching section can be clamped between the supporting rollers on the surface of the supporting table, the switching section is integrally of a cone structure and can longitudinally slide when rolling on the supporting rollers for a long time, meanwhile, the lower sliding end of the switching section is attached to the limiting wheels on the surface of the transverse plate, and the three sets of limiting wheels are integrally distributed in a circumferential array mode; therefore, the longitudinal movement generated during rotation of the switching section can be resisted while the rotation of the switching section is not influenced, so that the problem that the engineering quality and the construction safety are influenced by the longitudinal movement generated by long-time rotation of the switching section is avoided.

Description

Technical Field

[0001] This utility model relates to the field of submerged arc welding fixing technology, specifically a fixing fixture for submerged arc welding of circumferential seams in wind turbine tower transition sections. Background Technology

[0002] The transition section of a wind turbine tower is a crucial part connecting the tower and the foundation, and it is essential to the stability and safety of the entire wind power system. The design and manufacturing quality of the transition section directly affects the load-bearing capacity and dynamic response of the tower, ensuring the stable operation of the wind turbine under various wind speeds and environmental conditions. During the installation and connection process, circumferential submerged arc welding forms a continuous and uniform weld at the circumferential joint of the transition section, ensuring a firm connection between the various parts of the tower and improving the overall rigidity and wind resistance of the structure.

[0003] In the existing technology, the traditional fasteners for circumferential submerged arc welding of transition sections mainly consist of a support frame, rollers, and a connecting structure. The support frame provides stable support to ensure the verticality and horizontality of the transition section during welding. The rollers are mounted on the support frame to support and roll the transition section, enabling it to rotate smoothly during welding and ensuring the uniformity and continuity of the weld. The connecting structure connects the various components of the fastener to ensure stable operation of the fastener.

[0004] However, when using traditional fasteners for submerged arc welding of circumferential seams in transition sections, the overall structure of the transition section is conical, so long-term rolling on the roller frame will cause longitudinal slippage. This not only makes it impossible to accurately position the weld, but also poses a risk of the transition section tower falling. To address this problem, this utility model proposes a fastener for submerged arc welding of circumferential seams in wind turbine tower transition sections. Utility Model Content

[0005] The purpose of this utility model is to provide a fixing fixture for submerged arc welding of the circumferential seam of the transition section of a wind turbine tower, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section, the fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section includes: a support platform, support rollers are installed on both sides of the surface of the support platform, and a transition section is provided between the support rollers;

[0007] The limit wheel is provided in three sets. The surface of the limit wheel is in contact with one end of the transition section and the limit wheel is installed on the surface of the horizontal plate.

[0008] Preferably, the support platform has a rectangular parallelepiped structure, an arc-shaped groove is formed on the surface of the support platform, a transition section is fixed above the arc-shaped groove, four sets of roller grooves are formed on the surface of the support platform, and stabilizing plates are fixedly installed on both sides of the support platform.

[0009] Preferably, the roller groove has a semi-circular cross-section, the roller grooves are evenly distributed on both sides of the transition section, and a support roller is inserted into the roller groove, the support roller being tangent to the outer wall surface of the transition section.

[0010] Preferably, the limiting wheel is engaged between the fixed plates. The fixed plate has a hole on its surface, and a fixed bearing is fixedly installed within the hole. A connecting rod is fixedly connected to the inner ring surface of the fixed bearing, and the connecting rod is located at both ends of the limiting wheel, allowing the limiting wheel to rotate freely between the fixed plates. The fixed plate is fixedly connected to the surface of the mounting plate, which has a hole on its surface. A fixing screw is installed within the hole, and the fixing screw passes through the mounting plate and is threadedly connected to the mounting nut.

[0011] Preferably, the horizontal plate is provided in two sets, and the horizontal plate is fixedly installed between the support rods. Three sets of limiting wheels are distributed in a circumferential array on the surface of the two sets of horizontal plates.

[0012] Preferably, the support rod has an overall "I" shaped structure, with a stabilizing plate fixedly connected to the lower end of the support rod. One end of the stabilizing plate is fixedly connected to one end of the reinforcing diagonal rod, and the other end of the reinforcing diagonal rod is fixedly connected to the surface of the support rod.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section. During use, the transition section can be secured between support rollers on the support platform surface. The transition section has a conical structure, and prolonged rotation on the support rollers will cause longitudinal slippage. Simultaneously, the lower end of the transition section engages with limiting wheels on the horizontal plate surface, and the three sets of limiting wheels are arranged in a circumferential array. This prevents longitudinal movement caused by prolonged rotation of the transition section without affecting its rotation, thus avoiding the problems of longitudinal movement affecting project quality and construction safety. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a rear view schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure fixing device of this utility model;

[0018] Figure 4 This is a front view schematic diagram of the structural fixing device of this utility model.

[0019] In the diagram: 1. Support platform; 2. Support roller; 3. Adapter section; 4. Limiting wheel; 5. Horizontal plate; 6. Arc groove; 7. Roller groove; 8. Fixing plate; 9. Fixing bearing; 10. Support rod; 11. Mounting plate; 12. Fixing screw; 13. Mounting nut; 14. Stabilizing plate; 15. Reinforcing diagonal bar. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0024] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section, the fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section includes: a support platform 1, support rollers 2 are installed on both sides of the surface of the support platform 1, and a transition section 3 is provided between the support rollers 2;

[0025] The limiting wheel 4 has three sets. The surface of the limiting wheel 4 is in contact with one end of the transition section 3. The limiting wheel 4 is installed on the surface of the horizontal plate 5.

[0026] In use, the adapter section 3 can be locked between the support rollers 2 on the surface of the support platform 1. The adapter section 3 has a conical structure. When it rotates on the support rollers 2 for a long time, it will slide longitudinally. At the same time, the lower end of the adapter section 3 is in contact with the limiting wheel 4 on the surface of the horizontal plate 5. The three sets of limiting wheels 4 are arranged in a circumferential array. This way, the longitudinal movement of the adapter section 3 during rotation can be resisted without affecting its rotation. This avoids the problem of longitudinal movement caused by the adapter section 3 rotating for a long time, which may affect the quality of the project and construction safety.

[0027] Example 2: Based on Example 1, to prevent longitudinal sliding of the transition section 3, a limiting wheel 4 is provided. The limiting wheel 4 is engaged between the fixed plates 8. The surface of the fixed plate 8 has a hole, and a fixed bearing 9 is fixedly installed in the hole. A connecting rod is fixedly connected to the inner ring surface of the fixed bearing 9. The connecting rod is located at both ends of the limiting wheel 4, and the limiting wheel 4 can rotate freely between the fixed plates 8. The fixed plate 8 is fixedly connected to the surface of the mounting plate 11. The surface of the mounting plate 11 has a hole, and a fixing screw 12 is provided in the hole. The fixing screw 12 passes through the mounting plate 11 and is threadedly connected to the mounting nut 13.

[0028] Two sets of horizontal plates 5 are provided. The horizontal plates 5 are fixedly installed between the support rods 10. Three sets of limiting wheels 4 are distributed in a circular array on the surface of the two sets of horizontal plates 5.

[0029] To prevent longitudinal sliding of the transition section 3, when longitudinal sliding occurs, the limiting wheel 4 located at one end of the transition section 3 will resist the longitudinal movement generated by the transition section 3 during rotation, thereby preventing the transition section 3 from longitudinally sliding after rotating on the support roller 2 for a long time.

[0030] Example 3: Based on Example 2, in order to enable the transition section 3 to rotate smoothly during welding, a support platform 1 is provided. The support platform 1 is a rectangular structure. An arc groove 6 is provided on the surface of the support platform 1. The transition section 3 is fixed above the arc groove 6. Four sets of roller grooves 7 are provided on the surface of the support platform 1. Stabilizing plates 14 are fixedly installed on both sides of the support platform 1.

[0031] The roller groove 7 has a semi-circular cross section and is evenly distributed on both sides of the transition section 3. A support roller 2 is inserted into the roller groove 7 and is tangent to the outer wall surface of the transition section 3.

[0032] In order to enable the adapter section 3 to rotate smoothly, during installation, the adapter section 3 is installed directly above the arc groove 6 on the surface of the support platform 1 and is locked between the four sets of support rollers 2. The support rollers 2 are located at both ends of the adapter section 3. At the same time, the surface of the support rollers 2 is tangent to the outer wall surface at both ends of the adapter section 3, so that the adapter section 3 can rotate smoothly on the four sets of support rollers 2.

[0033] The support rod 10 has an overall "I" shaped structure. A stabilizing plate 14 is fixedly connected to the lower end of the support rod 10. One end of the surface of the stabilizing plate 14 is fixedly connected to one end of the reinforcing diagonal rod 15, and the other end of the reinforcing diagonal rod 15 is fixedly connected to the surface of the support rod 10.

[0034] In order to enable the transition section 3 to rotate smoothly, stabilizing plates 14 are fixedly installed on both sides of the support platform 1. The stabilizing plates 14 increase the support area of ​​the overall device, and the stabilizing plates 14 are fixedly connected to the support rod 10 through the reinforcing diagonal rod 15, so that the device as a whole forms a relatively stable structure, thereby enabling the transition section 3 to rotate smoothly on the support roller 2.

[0035] Working principle: In actual use, the adapter section 3 can be locked between the support rollers 2 on the surface of the support platform 1. The adapter section 3 has a conical structure. When it rotates on the support rollers 2 for a long time, it will slide longitudinally. At the same time, the lower end of the adapter section 3 is in contact with the limiting wheel 4 on the surface of the horizontal plate 5. The three sets of limiting wheels 4 are arranged in a circumferential array. This way, the longitudinal movement of the adapter section 3 during rotation can be resisted without affecting its rotation. This avoids the problem of longitudinal movement caused by the adapter section 3 rotating for a long time, which affects the quality of the project and construction safety.

[0036] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fixing fixture for submerged arc welding of circumferential seams in wind turbine tower transition sections, characterized in that: The fixed fixture for submerged arc welding of the circumferential seam of the wind turbine tower transition section includes: a support platform (1), support rollers (2) installed on both sides of the surface of the support platform (1), and a transition section (3) provided between the support rollers (2). The limiting wheel (4) is provided in three sets. The surface of the limiting wheel (4) is attached to one end of the transition section (3). The limiting wheel (4) is installed on the surface of the horizontal plate (5).

2. The fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section according to claim 1, characterized in that: The support platform (1) is a rectangular parallelepiped structure. An arc groove (6) is provided on the surface of the support platform (1). A transition section (3) is attached directly above the arc groove (6). Four sets of roller grooves (7) are provided on the surface of the support platform (1). Stabilizing plates (14) are fixedly installed on both sides of the support platform (1).

3. The fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section according to claim 2, characterized in that: The roller groove (7) has a semi-circular cross section and is evenly distributed on both sides of the transition section (3). A support roller (2) is inserted into the roller groove (7) and is tangent to the outer wall surface of the transition section (3).

4. The fixing fixture for submerged arc welding of circumferential seams in wind turbine tower transition sections according to claim 1, characterized in that: The limiting wheel (4) is engaged between the fixed plates (8). The fixed plate (8) has a hole on its surface, and a fixed bearing (9) is fixedly installed in the hole. A connecting rod is fixedly connected to the inner ring surface of the fixed bearing (9). The connecting rod is located at both ends of the limiting wheel (4), and the limiting wheel (4) can rotate freely between the fixed plates (8). The fixed plate (8) is fixedly connected to the surface of the mounting plate (11). The mounting plate (11) has a hole on its surface, and a fixing screw (12) is installed in the hole. The fixing screw (12) passes through the mounting plate (11) and is threadedly connected to the mounting nut (13).

5. The fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section according to claim 1, characterized in that: The horizontal plate (5) is provided in two sets. The horizontal plate (5) is fixedly installed between the support rods (10). Three sets of limiting wheels (4) are distributed in a circumferential array on the surface of the two sets of horizontal plates (5).

6. The fixing fixture for submerged arc welding of the circumferential seam of a wind turbine tower transition section according to claim 5, characterized in that: The support rod (10) has an overall "I" shaped structure. A stabilizing plate (14) is fixedly connected to the lower end of the support rod (10). One end of the surface of the stabilizing plate (14) is fixedly connected to one end of the reinforcing diagonal rod (15), and the other end of the reinforcing diagonal rod (15) is fixedly connected to the surface of the support rod (10).

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