Supporting and welding tool for wind power tower drum

Abstract

A wind power tower supporting and welding tool comprises a bidirectional driving mechanism and supporting mechanisms, the two ends of the bidirectional driving mechanism are each provided with one supporting mechanism, each supporting mechanism comprises a fixed ring, a movable ring and a supporting assembly, each supporting assembly comprises a supporting plate, a first connecting rod and a second connecting rod, and each supporting plate comprises a rigid plate and an elastic block. The lower surface of the elastic block is connected with the upper surface of the rigid plate, one end of the first connecting rod is hinged to the fixing rings, the other end of the first connecting rod is hinged to the rigid plate, one end of the second connecting rod is hinged to the moving ring, and the other end of the second connecting rod is hinged to the first connecting rod. The two moving rings are movably connected with a bidirectional driving mechanism, the bidirectional driving mechanism drives the two moving rings to be close to or away from each other, and under the action of the two symmetrically-designed second connecting rods, axial component force applied by the supporting plates corresponding to the two single-section cylinders to the single-section cylinders promotes the two single-section cylinders to be close to each other, so that a welding seam between the two single-section cylinders is smaller than 6 mm.

Description

Technical Field

[0001] This utility model relates to the field of welding auxiliary technology, and in particular to a welding fixture for wind turbine tower support. Background Technology

[0002] A wind turbine tower is the support structure of a wind turbine generator. It is constructed by welding together several individual sections. Each section is made by cutting, rolling, and welding thick plates to form an open-end cylindrical shape. Due to their large size, these individual sections are difficult to connect coaxially without supporting welding fixtures, thus facilitating welding.

[0003] Authorization announcement number CN219254655U discloses a welding concentric mechanism, including a fixed shaft, a threaded sleeve, and two sets of support components that can be synchronously extended and retracted by the rotation of the threaded sleeve. The threaded sleeve is rotatably disposed on the outside of the fixed shaft, and threaded sections are provided on the outer surfaces of both ends of the threaded sleeve. By setting two sets of synchronously extendable and retractable support components, two single-section cylinders can be respectively sleeved on the two sets of support components, and synchronously extend and retract to achieve welding with high concentricity.

[0004] Before welding, the weld between two coaxially connected single-section cylinders must not exceed 6mm. When the weld between two coaxially connected single-section cylinders is greater than 6mm, a welding concentric mechanism can adjust the coaxial position of the two single-section cylinders, but cannot adjust the weld between the two coaxially connected single-section cylinders. Summary of the Invention

[0005] In view of this, and to address the above-mentioned shortcomings, it is necessary to propose a welding fixture for wind turbine tower support.

[0006] A welding fixture for wind turbine tower support includes a bidirectional drive mechanism and a support mechanism. A support mechanism is provided at each end of the bidirectional drive mechanism, and the two support mechanisms are symmetrical about the bidirectional drive mechanism. Each support mechanism includes a fixed ring, a moving ring, and support components. At least three support components are provided along the circumference of the fixed ring. Each support component includes a support plate, a first connecting rod, and a second connecting rod. The support plate includes a rigid plate and an elastic block. The lower surface of the elastic block is connected to the upper surface of the rigid plate. One end of the first connecting rod is hinged to the fixed ring, and the other end of the first connecting rod is hinged to the rigid plate. One end of the second connecting rod is hinged to the moving ring, and the other end of the second connecting rod is hinged to the first connecting rod. The two fixed rings are fixedly connected to the bidirectional drive mechanism, and the two moving rings are movably connected to the bidirectional drive mechanism. The bidirectional drive mechanism drives the two moving rings to move closer to or further away from each other.

[0007] Preferably, there are several elastic blocks, which are arranged at intervals along the rigid plate.

[0008] Preferably, the support assembly includes a third link, one end of which is hinged to a fixed ring, and the other end of which is hinged to a rigid plate.

[0009] Preferably, the third link is parallel to the first link.

[0010] Preferably, the second connecting rod includes an upper cylinder, a lower cylinder, and a spring, wherein the upper cylinder and the lower cylinder slide relative to each other, one end of the spring is connected to the upper cylinder, and the other end of the spring is connected to the lower cylinder.

[0011] Preferably, the bidirectional drive mechanism includes a drive rod, which includes a smooth rod, a first threaded rod, and a second threaded rod. The first threaded rod and the second threaded rod are respectively disposed at both ends of the smooth rod, and the thread directions of the first threaded rod and the second threaded rod are opposite. The fixed rings of the two support mechanisms are the first fixed ring and the second fixed ring, and the moving rings of the two support mechanisms are the first moving ring and the second moving ring, respectively. From one end of the drive rod to the other end, the first moving ring, the first fixed ring, the second fixed ring, and the second moving ring are sequentially provided. The first fixed ring and the second fixed ring are fixedly connected to the smooth rod. The first moving ring is threadedly engaged with the first threaded rod, and the second moving ring is threadedly engaged with the second threaded rod.

[0012] Preferably, the retaining ring and the smooth rod are coaxially fixedly connected.

[0013] Preferably, the bidirectional drive mechanism includes a telescopic member, which includes a fixed end, a first telescopic end, and a second telescopic end. The first telescopic end and the second telescopic end are respectively located at opposite ends of the fixed end. The telescopic directions of the first telescopic end and the second telescopic end are opposite. The fixed rings of the two support mechanisms are the first fixed ring and the second fixed ring, and the moving rings of the two support mechanisms are the first moving ring and the second moving ring, respectively. From one end of the telescopic member to the other end, the first moving ring, the first fixed ring, the second fixed ring, and the second moving ring are sequentially provided. The first fixed ring and the second fixed ring are fixedly connected to the fixed end. The first moving ring is fixedly connected to the first telescopic end, and the second moving ring is fixedly connected to the second telescopic end.

[0014] Preferably, the retaining ring is coaxially and fixedly connected to the retaining end.

[0015] Preferably, three support components are provided along the circumference of the fixed ring.

[0016] Beneficial effects: Under the action of the two symmetrically designed second connecting rods, the radial component of the support plate corresponding to the two single-section cylinders promotes the coaxiality of the two single-section cylinders. At the same time, the axial component of the support plate corresponding to the two single-section cylinders promotes the two single-section cylinders to move closer together, so that the weld between the two single-section cylinders is less than 6mm. Attached Figure Description

[0017] Figure 1 This is an isometric view of the welding fixture supporting the wind turbine tower.

[0018] Figure 2 This is a schematic diagram showing the usage status of the welding fixture for supporting the wind turbine tower.

[0019] Figure 3 for Figure 1 A partial enlarged view of the support plate described in the image.

[0020] Figure 4 for Figure 1 A partially enlarged view of the third link described in the image.

[0021] Figure 5 This is a schematic diagram of the first embodiment of the bidirectional drive mechanism.

[0022] Figure 6 This is a schematic diagram of the second embodiment of the bidirectional drive mechanism.

[0023] In the figure: single-section cylinder 10, bidirectional drive mechanism 20, drive rod 21, smooth rod 211, first threaded rod 212, second threaded rod 213, telescopic component 22, fixed end 221, first telescopic end 222, second telescopic end 223, support mechanism 30, fixed ring 31, moving ring 32, support assembly 33, support plate 331, rigid plate 3311, elastic block 3312, first connecting rod 332, second connecting rod 333, upper cylinder 3331, lower cylinder 3332, spring 3333, third connecting rod 334. Detailed Implementation

[0024] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0025] See Figure 1 , Figure 3This utility model provides a welding fixture for wind turbine tower support, including a bidirectional drive mechanism 20 and a support mechanism 30. A support mechanism 30 is provided at each end of the bidirectional drive mechanism 20, and the two support mechanisms 30 are symmetrical about the bidirectional drive mechanism 20. Each support mechanism 30 includes a fixed ring 31, a moving ring 32, and support components 33. At least three support components 33 are provided along the circumference of the fixed ring 31. Each support component 33 includes a support plate 331, a first connecting rod 332, and a second connecting rod 333. The support plate 331 includes a rigid plate 3311 and a spring... The lower surface of the elastic block 3312 is connected to the upper surface of the rigid plate 3311. One end of the first connecting rod 332 is hinged to the fixed ring 31, and the other end of the first connecting rod 332 is hinged to the rigid plate 3311. One end of the second connecting rod 333 is hinged to the moving ring 32, and the other end of the second connecting rod 333 is hinged to the first connecting rod 332. The two fixed rings 31 are fixedly connected to the bidirectional drive mechanism 20, and the two moving rings 32 are movably connected to the bidirectional drive mechanism 20. The bidirectional drive mechanism 20 drives the two moving rings 32 to move closer to each other or further away from each other.

[0026] For example, the elastic block 3312 employs a multi-layered composite elastic material, such as a silicone-metal mesh reinforced structure.

[0027] See Figure 2 Two single-section cylinders 10 are placed on a horizontal surface and initially joined together using a forklift. The gap between the two single-section cylinders 10 is, for example, 10 mm. A welding support device is installed inside the two single-section cylinders 10. A bidirectional drive mechanism 20 is activated. The support plate 331 of one support mechanism 30 presses against the inner wall of one single-section cylinder 10, and the support plate 331 of the other support mechanism 30 presses against the inner wall of the other single-section cylinder 10. The two single-section cylinders 10 are coaxial under the action of the support plate 331. The second connecting rod 333 acts on the support plate 331. During the deformation of the elastic block 3312, the force between the elastic block 3312 and the single-section cylinder 10 pushes the single-section cylinder 10 to move along its axis until the elastic block 3312 stops deforming. The elastic parameters of the elastic block 3312 can be selected as needed. This is a conventional design method. The two symmetrically designed support mechanisms 30 simultaneously push the two single-section cylinders 10 closer to each other.

[0028] Beneficial effects: Under the action of the two symmetrically designed second connecting rods 333, the radial component of the support plate 331 corresponding to the two single-section cylinder 10 promotes the coaxiality of the two single-section cylinder 10. At the same time, the axial component of the support plate 331 corresponding to the two single-section cylinder 10 promotes the two single-section cylinder 10 to move closer, so that the weld between the two single-section cylinder 10 is less than 6mm.

[0029] See Figure 3Furthermore, there are several elastic blocks 3312, which are arranged at intervals along the rigid plate 3311. The interval arrangement of the elastic blocks 3312 facilitates the deformation of the elastic blocks 3312.

[0030] See Figure 1 Furthermore, the support assembly 33 includes a third link 334, one end of which is hinged to the fixing ring 31, and the other end of which is hinged to the rigid plate 3311.

[0031] See Figure 1 Furthermore, the third link 334 is parallel to the first link 332.

[0032] See Figure 4 Furthermore, the second link 333 includes an upper cylinder 3331, a lower cylinder 3332, and a spring 3333. The upper cylinder 3331 and the lower cylinder 3332 slide relative to each other. One end of the spring 3333 is connected to the upper cylinder 3331, and the other end of the spring 3333 is connected to the lower cylinder 3332.

[0033] For example, the lower cylinder 3332 is nested inside the upper cylinder 3331, and the upper cylinder 3331 is nested inside the spring 3333. The second link 333 is telescopic, and when the second link 333 is perpendicular to the bidirectional drive mechanism 20, it can achieve self-locking.

[0034] See Figure 5 Furthermore, the bidirectional drive mechanism 20 includes a drive rod 21, which includes a smooth rod 211, a first threaded rod 212, and a second threaded rod 213. The first threaded rod 212 and the second threaded rod 213 are respectively located at both ends of the smooth rod 211, and the threads of the first threaded rod 212 and the second threaded rod 213 are opposite in direction. The fixed rings 31 of the two support mechanisms 30 are the first fixed ring 31 and the second fixed ring 31, respectively, and the moving rings 32 of the two support mechanisms 30 are the first moving ring 32 and the second moving ring 32, respectively. From one end of the drive rod 21 to the other end of the drive rod 21, the first moving ring 32, the first fixed ring 31, the second fixed ring 31, and the second moving ring 32 are sequentially provided. The first fixed ring 31 and the second fixed ring 31 are fixedly connected to the smooth rod 211. The first moving ring 32 is threadedly engaged with the first threaded rod 212, and the second moving ring 32 is threadedly engaged with the second threaded rod 213.

[0035] See Figure 5 Furthermore, the fixing ring 31 is coaxially and fixedly connected to the smooth rod 211.

[0036] The smooth rod 211, the first threaded rod 212, and the second threaded rod 213 rotate synchronously. The first threaded rod 212 and the second threaded rod 213 respectively drive the first motion circle 32 and the second motion circle 32, causing the first motion circle 32 and the second motion circle 32 to move closer to or further away from each other. The driving method of the smooth rod 211 is a conventional means and is not limited in this application.

[0037] See Figure 6 Furthermore, the bidirectional drive mechanism 20 includes a telescopic member 22, which includes a fixed end 221, a first telescopic end 222, and a second telescopic end 223. The first telescopic end 222 and the second telescopic end 223 are respectively located at both ends of the fixed end 221. The telescopic directions of the first telescopic end 222 and the second telescopic end 223 are opposite. The fixed rings 31 of the two support mechanisms 30 are the first fixed ring 31 and the second fixed ring 31, respectively. The moving rings 32 of the two support mechanisms 30 are the first moving ring 32 and the second moving ring 32, respectively. From one end of the telescopic member 22 to the other end of the telescopic member 22, the first moving ring 32, the first fixed ring 31, the second fixed ring 31, and the second moving ring 32 are sequentially provided. The first fixed ring 31 and the second fixed ring 31 are fixedly connected to the fixed end 221. The first moving ring 32 is fixedly connected to the first telescopic end 222, and the second moving ring 32 is fixedly connected to the second telescopic end 223.

[0038] See Figure 6 Furthermore, the fixing ring 31 is coaxially and fixedly connected to the fixing end 221.

[0039] The first telescopic end 222 and the second telescopic end respectively drive the first motion coil 32 and the second motion coil 32, so that the first motion coil 32 and the second motion coil 32 move closer to each other or move further away from each other.

[0040] For example, the telescopic member 22 consists of two hydraulic cylinders fixed back to back, which are connected in series.

[0041] See Figure 1 Furthermore, three support components 33 are provided along the circumference of the fixed ring 31.

[0042] The modules or units in the device of this utility model embodiment can be merged, divided, or deleted according to actual needs.

[0043] The above-disclosed embodiments are merely preferred embodiments of the present utility model and should not be construed as limiting the scope of the present utility model. Those skilled in the art can understand that implementing all or part of the above-described embodiments and making equivalent changes in accordance with the claims of the present utility model are still within the scope of the utility model.

Claims

1. A wind turbine tower section support welding fixture, characterized by: The device includes a bidirectional drive mechanism and a support mechanism. A support mechanism is provided at each end of the bidirectional drive mechanism, and the two support mechanisms are symmetrical about the bidirectional drive mechanism. Each support mechanism includes a fixed ring, a moving ring, and support components. At least three support components are provided along the circumference of the fixed ring. Each support component includes a support plate, a first connecting rod, and a second connecting rod. The support plate includes a rigid plate and an elastic block. The lower surface of the elastic block is connected to the upper surface of the rigid plate. One end of the first connecting rod is hinged to the fixed ring, and the other end of the first connecting rod is hinged to the rigid plate. One end of the second connecting rod is hinged to the moving ring, and the other end of the second connecting rod is hinged to the first connecting rod. The two fixed rings are fixedly connected to the bidirectional drive mechanism, and the two moving rings are movably connected to the bidirectional drive mechanism. The bidirectional drive mechanism drives the two moving rings to move closer to or further away from each other.

2. The wind turbine tower section support welding fixture of claim 1, wherein: There are several elastic blocks, which are arranged at intervals along the rigid plate.

3. The wind turbine tower section support welding fixture of claim 1, wherein: The support assembly includes a third link, one end of which is hinged to a fixed ring, and the other end of which is hinged to a rigid plate.

4. The wind turbine tower section support welding fixture of claim 3, wherein: The third link is parallel to the first link.

5. The wind turbine tower section support welding fixture of claim 1, wherein: The second connecting rod includes an upper cylinder, a lower cylinder, and a spring. The upper cylinder and the lower cylinder slide relative to each other. One end of the spring is connected to the upper cylinder, and the other end of the spring is connected to the lower cylinder.

6. The wind turbine tower section support welding fixture of claim 1, wherein: The bidirectional drive mechanism includes a drive rod, which comprises a smooth rod, a first threaded rod, and a second threaded rod. The first threaded rod and the second threaded rod are respectively located at both ends of the smooth rod, and the threads of the first threaded rod and the second threaded rod have opposite directions. The fixed rings of the two support mechanisms are the first fixed ring and the second fixed ring, and the moving rings of the two support mechanisms are the first moving ring and the second moving ring, respectively. From one end of the drive rod to the other end, the first moving ring, the first fixed ring, the second fixed ring, and the second moving ring are sequentially provided. The first fixed ring and the second fixed ring are fixedly connected to the smooth rod. The first moving ring is threadedly engaged with the first threaded rod, and the second moving ring is threadedly engaged with the second threaded rod.

7. The wind turbine tower section support welding fixture of claim 6, wherein: The retaining ring and the smooth rod are coaxially and fixedly connected.

8. The wind turbine tower section support welding fixture of claim 1, wherein: The bidirectional drive mechanism includes a telescopic component, which includes a fixed end, a first telescopic end, and a second telescopic end. The first telescopic end and the second telescopic end are respectively located at opposite ends of the fixed end. The first telescopic end and the second telescopic end extend in opposite directions. The fixed rings of the two support mechanisms are the first fixed ring and the second fixed ring, and the moving rings of the two support mechanisms are the first moving ring and the second moving ring, respectively. From one end of the telescopic component to the other end, the first moving ring, the first fixed ring, the second fixed ring, and the second moving ring are sequentially arranged. The first fixed ring and the second fixed ring are fixedly connected to the fixed end. The first moving ring is fixedly connected to the first telescopic end, and the second moving ring is fixedly connected to the second telescopic end.

9. The wind turbine tower section support welding fixture of claim 8, wherein: The retaining ring is coaxially and fixedly connected to the retaining end.

10. The wind turbine tower section support welding fixture of claim 1, wherein: Three support components are provided along the circumference of the fixed ring.

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