A turning tool for welding stator bracket of wind turbine

Abstract

The present invention discloses a flipping tool for welding a stator support of a wind turbine generator, which relates to the technical field of welding tooling, and includes a vertical support and a flipping support. The vertical support is fixedly installed, and the stator support of the wind turbine generator can be sleeved in the middle of the flipping support and fixedly connected to the flipping support. The two ends of the flipping support are rotatably arranged on the top of the vertical support, and the rotating shaft of the flipping support is arranged horizontally. A flipping assembly is arranged at the bottom of the vertical support, and the flipping assembly can drive the stator support of the wind turbine generator to rotate or fix the stator support of the wind turbine generator to realize the flipping of the stator support of the wind turbine generator. The flipping tool of the present invention can realize flat welding of the stator support of the wind turbine generator, and the operation is convenient and labor-saving, and the safety and reliability are high. The difficulty of flipping and welding operation is greatly reduced, the welding quality is guaranteed, and the production efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of welding tools, and more particularly to a turning tool for welding a stator bracket of a wind turbine generator. Background Art

[0002] When assembling and welding the stator bracket, there are many vertical welds that need to be welded vertically. During vertical welding, due to the effect of gravity, the weld is prone to defects such as weld nodules and pores, and the vertical welding operation is much more difficult than flat welding. The stator bracket supports the stator of the generator, and has high requirements for the mechanical properties of its structure. In order to improve the quality of the welds, ensure the mechanical properties of the stator bracket, and reduce the difficulty of the operation, it is often necessary to flip the stator bracket several times during the assembly and welding process to reduce vertical welding. However, the stator bracket has a large tonnage and a large volume, and its stability during the flipping process is difficult to control, the positioning is not accurate, and the operation is difficult. Summary of the invention

[0003] The purpose of the present invention is to make up for the defects of the prior art and provide a flip tool for welding the stator bracket of a wind turbine. The main purpose is to solve the problems of slow welding speed, poor welding quality and difficult operation in the existing stator bracket using vertical welding.

[0004] The technical solution of the present invention is as follows: a flip tool for welding a stator bracket of a wind turbine generator, comprising a vertical bracket and a flip bracket, wherein the vertical bracket is fixedly installed and is characterized in that the stator bracket of the wind turbine generator can be sleeved in the middle of the flip bracket and fixedly connected to the flip bracket, the two ends of the flip bracket are rotatably arranged on the top of the vertical bracket, the rotating shaft of the flip bracket is horizontally arranged, and a flip assembly is arranged at the bottom end of the vertical bracket, and the flip assembly can drive the stator bracket of the wind turbine generator to rotate or fix the stator bracket of the wind turbine generator to realize the flipping of the stator bracket of the wind turbine generator.

[0005] The cam is an angularly shaped member which is adapted to engage with the at least one camshaft and to engage with the at least one camshaft, and the cams are connected to a pair of camshafts which are linked together by a threaded cantilever shaped member which is adapted to engage with the at least one camshaft.

[0006] Furthermore, a positioning block is welded between one end of each of the angular auxiliary plates connected to the middle flange and the middle flange.

[0007] Furthermore, two ends of each of the pressing plates are fixedly connected to the equal height blocks and the middle flange via clamping bolts.

[0008] Furthermore, the vertical bracket includes two vertical frames arranged opposite to each other, a fixed base fixedly connected to the ground is arranged at the bottom of each vertical frame, and two ends of the central rotating shaft are rotatably arranged at the top ends of the two vertical frames respectively.

[0009] Furthermore, two supporting wheel assemblies are arranged opposite to each other at the top ends of the two vertical frames, each of the supporting wheel assemblies includes three parallel columns, and both ends of the central rotating shaft are respectively placed on the three columns and are tangent to the three columns.

[0010] Furthermore, the top ends of the two vertical frames are respectively provided with limiting brackets on the outside of the supporting wheel assembly, and the two limiting brackets are respectively abutted against the two ends of the central rotating shaft to limit the axial movement of the central rotating shaft.

[0011] Furthermore, two parallel H-shaped steels are connected between the two vertical frames.

[0012] Furthermore, the two vertical frames are both provided with steps leading from the bottom to the top.

[0013] Furthermore, the flip assembly includes an axle seat, a rotating shaft, a cam, a turntable and a handle, the axle seat is fixedly arranged on the H-shaped steel, one end of the rotating shaft is rotatably arranged on the axle seat, the other end of the rotating shaft passes through the vertical frame and is rotatably supported by the vertical frame, the other end of the rotating shaft extends out of the vertical frame and is fixedly connected to the center of the turntable, a handle is fixedly arranged on the outside of the turntable, the cam is fixedly arranged on the rotating shaft, and operating the handle can make the cam drive the wind turbine stator bracket to rotate or make the cam stuck in the gap on the outer surface of the wind turbine stator bracket to fix the wind turbine stator bracket.

[0014] The beneficial effects of the present invention are as follows: (1) The stator bracket of the wind turbine generator is sleeved on the flip bracket rotating around the horizontal axis. When the stator bracket of the wind turbine generator is driven to flip around the horizontal axis to the desired welding position by the flip assembly, the flip assembly fixes the stator bracket of the wind turbine generator to achieve positioning, so that the flat welding of the stator bracket of the wind turbine generator can be achieved. Compared with the vertical welding method, the operation is convenient and labor-saving, and the safety and reliability are high. The difficulty of flipping and welding operations is greatly reduced, the welding quality is guaranteed, and the production efficiency is improved. (2) The stator bracket of the wind turbine generator is fixedly connected to the equal height block on the flip bracket by the pressure plate and the clamping bolt, which not only ensures the convenient installation and disassembly between the stator bracket of the wind turbine generator and the flip bracket, and the operation is convenient, but also ensures the connection strength between the stator bracket of the wind turbine generator and the flip bracket, so that the stator bracket of the wind turbine generator has good stability and high safety during the flipping process. (3) The stator bracket of the wind turbine generator is mounted on the flip bracket. The flip bracket is a supporting structure assembled by an outer flange, a middle flange, an auxiliary plate, a connecting flange and a central rotating shaft. It not only greatly saves material consumption while ensuring the structural strength of the flip bracket, but also prevents the stator bracket of the wind turbine generator from deformation during the assembly and welding process, thereby ensuring the quality of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description of the invention are briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other accompanying drawings can be obtained based on these accompanying drawings without paying creative work.

[0016] Figure 1 The figure is a schematic structural diagram of a turning tool for welding a stator support of a wind turbine according to a preferred embodiment of the present invention.

[0017] Figure 2 It is a schematic structural diagram of a flip bracket according to a preferred embodiment of the present invention.

[0018] Figure 3It is a schematic structural diagram of a vertical bracket according to a preferred embodiment of the present invention.

[0019] Figure 4 Schematic diagram of the flipping principle of the stator support of a wind turbine according to a preferred embodiment of the present invention

[0020] Among them, 11- wind turbine stator bracket; 2- flip bracket; 21- center shaft; 221- outer flange; 222- middle flange; 222a- equal height block; 224- connecting flange; 231- angular auxiliary plate; 232- positioning block; 233- ring plate; 3- vertical bracket; 31- vertical frame; 31a- step; 32- fixed base; 33- support wheel assembly; 34- limit bracket; 35- H-shaped steel; 36- flip assembly; 361- shaft seat; 362- cam; 363- rotating shaft; 364- turntable; 364b- handle. DETAILED DESCRIPTION

[0021] The technical solution of the present invention will be described clearly and completely below in conjunction with the accompanying drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0022] Figure 1 FIG. 1 is a schematic structural diagram of a turning tool for welding a stator support of a wind turbine according to a preferred embodiment of the present invention. Figure 1 As shown, it includes a vertical support 3 and a flip support 2, and the vertical support 3 is fixedly installed and can be fixedly installed on the ground or other installation foundations. The wind turbine stator support can be sleeved in the middle of the flip support 2 and fixedly connected to the flip support 2. The two ends of the flip support 2 are rotatably arranged on the top of the vertical support 3. The rotating shaft of the flip support 2 is arranged horizontally, so the wind turbine stator support can be horizontally arranged on the flip support 3 and can rotate around the horizontal rotating shaft on the vertical support 3. A flip assembly 36 is arranged at the bottom end of the vertical support 3, and the flip assembly 36 can drive the wind turbine stator support to rotate or fix the wind turbine stator support to realize the flipping of the wind turbine stator support. When the wind turbine stator support needs to be flipped to the required welding position, the flip assembly 36 drives the wind turbine stator support to rotate. After the wind turbine stator support is flipped to the required welding position, the flip assembly 36 fixes the wind turbine stator support to complete the wind turbine stator support.

[0023] The above-mentioned flipping tooling is achieved by arranging the wind turbine stator bracket to be horizontally sleeved on the flipping bracket rotating around the horizontal rotation axis. When the wind turbine stator bracket is driven to flip around the horizontal rotation axis to the required welding position by the flipping assembly, the flipping assembly fixes the wind turbine stator bracket to achieve positioning, thereby realizing flat welding of the wind turbine stator bracket. Compared with the vertical welding method, the operation is convenient and labor-saving, and the safety and reliability are high, which greatly reduces the difficulty of flipping and welding operations, ensures the welding quality, and improves production efficiency.

[0024] Figure 2 FIG. 1 is a schematic diagram of the structure of a flip bracket according to a preferred embodiment of the present invention. Figure 2 As shown, the flip bracket 2 includes a central rotating shaft 21, on which two spaced connecting flanges 224 are fixedly sleeved, each of which is surrounded by an outer flange 221, and an inner side of each outer flange 221 is provided with a ring plate 233 vertically connected to the outer flange 221, and a middle flange 222 surrounding the central rotating shaft 21 is provided between the two outer flanges 221. A plurality of angular auxiliary plates 231 arranged in a circular array around the central rotating shaft 21 are provided between the connecting flanges 224 on both sides and the outer flanges 221 and the middle middle flange 222. The two ends of each angular auxiliary plate 231 are respectively welded and fixed to the connecting flange 224 and the middle flange 222, and the outer side of the middle part of each angular auxiliary plate 231 is clamped and welded to the ring plate 233. Preferably, a positioning block 232 is welded between one end of each of the angular auxiliary plates 231 connected to the middle flange 222 and the middle flange 222, so as to enhance the rigidity of the angular auxiliary plates 231. A plurality of equal-height blocks 222a arranged in a circular array around the central rotating shaft 21 are welded and fixed to the inner side of one end of the middle flange 222. The inner wall of the wind turbine stator bracket can be sleeved on the middle flange 222. Each of the equal-height blocks 222a is fixedly connected to the middle flange 222 via a pressure plate. Specifically, the two ends of each of the pressure plates are fixedly connected to the equal-height blocks 222a and the middle flange 222 via tightening bolts. Figure 1 As shown, the central rotating shaft 21 is arranged horizontally and its two ends are rotatably arranged on the top of the vertical bracket 3.

[0025] The stator support of the wind turbine generator can be fixedly connected to the equal height block 222a on the flip support 2 by means of a pressure plate and a tightening bolt, which not only ensures the convenient installation and disassembly between the stator support of the wind turbine generator and the flip support 2, and the convenient operation, but also ensures the connection strength between the stator support of the wind turbine generator and the flip support 2, so that the stator support of the wind turbine generator has good stability and high safety during the flipping process. In addition, the stator support of the wind turbine generator is sleeved on the flip support 2, and the flip support 2 is a support structure formed by assembling an outer flange 221, a middle flange 222, an auxiliary plate 231, a connecting flange 224 and a central rotating shaft 21, which not only greatly saves the material consumption while ensuring the structural strength of the flip support 2, but also prevents the stator support of the wind turbine generator from deforming during the assembly and welding process, thereby ensuring the quality of the product.

[0026] Figure 3 FIG. 1 is a schematic structural diagram of a vertical support according to a preferred embodiment of the present invention. Figure 3 As shown, the vertical support 3 includes two vertical frames 31 arranged opposite to each other, and a fixed base 32 fixedly connected to the ground is arranged at the bottom of each vertical frame 31. Figure 1 As shown, two ends of the central shaft 21 are rotatably disposed on the top ends of the two vertical frames 31 .

[0027] Specifically, two support wheel assemblies 33 are relatively arranged at the top ends of the two vertical frames 31, and each of the support wheel assemblies 33 includes three parallel columns. The two ends of the central rotating shaft 21 are respectively placed on the three columns and tangent to the three columns, so that the two ends of the central rotating shaft 21 can rotate on the three columns.

[0028] Preferably, the top ends of the two vertical frames 31 are respectively provided with limited brackets 34 on the outside of the supporting wheel assembly 33, Figure 1 As shown, the two limiting brackets 34 are respectively in contact with the two ends of the central shaft 21 to limit the axial movement of the central shaft 21, thereby ensuring that the wind turbine stator bracket will not move axially and shift when flipping, thereby ensuring the welding quality.

[0029] Preferably, two parallel H-shaped steels 35 are connected between the two vertical frames 31 to enhance the strength of the vertical bracket 3 .

[0030] Optionally, both of the vertical frames 31 are provided with steps 31a leading from the bottom to the top, so that the operator can climb up to the top of the vertical frame 31 through the step 31a to adjust the position of the central shaft 21 and adjust the limit bracket 34 to press against the end of the central shaft 21.

[0031] Specifically, the flip assembly 36 includes an axle seat 361, a rotating shaft 363, a cam 362, a turntable 364 and a handle 364b. The axle seat 361 is fixedly disposed on the H-shaped steel 35. One end of the rotating shaft 363 is rotatably disposed on the axle seat 361. The other end of the rotating shaft 363 passes through the vertical frame 31 and is rotatably supported by the vertical frame 31. The other end of the rotating shaft 363 extends out of the vertical frame 31 and is fixedly connected to the center of the turntable 364. A handle 364b is fixedly disposed on the outer side of the turntable 364. The cam 362 is fixedly disposed on the rotating shaft 363. When the handle 364b is operated to rotate the turntable 364, the cam 362 can be driven to rotate through the rotating shaft 363. Figure 4 As shown, the operating handle 364b can make the cam 362 drive the wind turbine stator bracket 11 to rotate or make the cam 362 get stuck in the gap on the surface of the wind turbine stator bracket 11 to fix the wind turbine stator bracket 11.

[0032] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present invention, and these modifications or replacements should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A turning tool for welding a stator support of a wind turbine generator, comprising a vertical support and a turning support, wherein the vertical support is fixedly installed, and is characterized in that: The stator bracket of the wind turbine generator can be sleeved in the middle of the flip bracket and fixedly connected to the flip bracket, the two ends of the flip bracket can be rotatably arranged on the top of the vertical bracket, the rotating shaft of the flip bracket is horizontally arranged, and the bottom end of the vertical bracket is provided with a flip assembly, and the flip assembly includes a cam for driving the stator bracket of the wind turbine generator to rotate or fix, the flip bracket includes a central rotating shaft, and two spaced connecting flanges are fixedly sleeved on the central rotating shaft, each of the connecting flanges is surrounded by an outer flange, and a ring plate vertically connected to the outer flange is arranged on the inner side of each of the outer flanges, and a middle flange surrounding the central rotating shaft is arranged between the two outer flanges, and the two A plurality of angular auxiliary plates arranged in a circular array around the central rotating shaft are arranged between the connecting flange and the outer flange on the side and the middle flange in the middle, and the two ends of each of the angular auxiliary plates are respectively welded and fixed to the connecting flange and the middle flange, and the outer side of the middle part of each of the angular auxiliary plates is clamped and welded to the ring plate; a plurality of equal-height blocks arranged in a circular array around the central rotating shaft are welded and fixed to the inner side of one end of the middle flange, and the inner wall of the stator bracket of the wind turbine generator can be sleeved on the middle flange, and each of the equal-height blocks is fixedly connected to the middle flange by a pressing plate, and the central rotating shaft is horizontally arranged and its two ends are rotatably arranged at the top of the vertical bracket.

2. The turning tool according to claim 1, characterized in that: A positioning block is welded between one end of each of the angled auxiliary plates connected to the middle flange and the middle flange.

3. The turning tool according to claim 1, characterized in that: Both ends of each pressing plate are fixedly connected to the equal height block and the middle flange through tightening bolts.

4. The turning tool according to claim 1, characterized in that: The vertical bracket includes two vertical frames arranged opposite to each other, a fixed base fixedly connected to the ground is arranged at the bottom of each vertical frame, and two ends of the central rotating shaft are rotatably arranged at the top ends of the two vertical frames respectively.

5. The turning tool according to claim 4, characterized in that: Two supporting wheel assemblies are arranged oppositely at the top ends of the two vertical frames, each of the supporting wheel assemblies comprises three parallel columns, and the two ends of the central rotating shaft are respectively placed on the three columns and are tangent to the three columns.

6. The turning tool according to claim 5, characterized in that: The top ends of the two vertical frames are respectively provided with limiting brackets on the outsides of the supporting wheel assemblies, and the two limiting brackets are respectively abutted against the two ends of the central rotating shaft to limit the axial movement of the central rotating shaft.

7. The turning tool according to claim 4, characterized in that: Two parallel H-shaped steels are connected between the two vertical frames.

8. The turning tool according to claim 4, characterized in that: The two vertical frames are both provided with steps leading from the bottom to the top.

9. The turning tool according to claim 1, characterized in that: The flip assembly includes an axle seat, a rotating shaft, a cam, a turntable and a handle, wherein the axle seat is fixedly arranged on the H-shaped steel, one end of the rotating shaft is rotatably arranged on the axle seat, the other end of the rotating shaft passes through the vertical frame and is rotatably supported by the vertical frame, the other end of the rotating shaft extends out of the vertical frame and is fixedly connected to the center of the turntable, a handle is fixedly arranged on the outer side of the turntable, the cam is fixedly arranged on the rotating shaft, and operating the handle can make the cam drive the wind turbine stator bracket to rotate or make the cam clamped in the gap on the outer surface of the wind turbine stator bracket to fix the wind turbine stator bracket.

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