Welding machine for combining heads of wind driven generator stators

Abstract

The utility model discloses a welding machine for a wind driven generator stator parallel head, which comprises a connecting flange used for being fixedly connected with the stator parallel head; the slewing mechanism is rotatably arranged on the connecting flange; the welding machine supporting platform is arranged on the slewing mechanism and can rotate relative to the connecting flange along with rotation of the slewing mechanism; and the welding machine is arranged on the welding machine supporting platform and is used for welding the stator parallel heads. According to the welding machine for the wind driven generator stator head combining, the connecting flange is arranged at the upper end of the stator head combining, and the connecting flange is connected with the welding machine supporting platform through the rotating mechanism, so that the welding machine on the welding machine supporting platform can rotate along with the welding machine supporting platform, and the orientation of the welding machine can be conveniently adjusted at any time; the welding machine does not need to be moved after welding is completed at each welding point position, the labor intensity of workers in the stator end-to-end welding process can be greatly reduced, and manpower resources are saved.

Description

Technical Field

[0001] The utility model relates to the technical field of welding equipment, and more specifically to a welding machine for joining stators of a wind turbine generator. Background Art

[0002] During the production process of wind turbine stator jointing, the connection of multiple parts needs to be achieved by welding, and welding requires the use of a welding machine. The welding machine is large in size and relatively heavy in weight. Designated personnel are required to adjust the position of the welding machine at any time to ensure that the distance between the welding machine and the joint position meets the welding requirements. The joint position of a generator stator is distributed around the circumference of the stator. During the joint welding process, employees need to move the welding machine used around the circumference of the stator joint, so that they can weld multiple parts of the stator joint. Since the welding machine is relatively large, it is inconvenient to move and requires designated personnel to operate it, which wastes a lot of human resources.

[0003] In summary, how to reduce the difficulty of welding the motor stators is a problem that needs to be solved urgently by those skilled in the art. Utility Model Content

[0004] In view of this, the purpose of the utility model is to provide a welding machine for wind turbine stator joint heads, which can be set on the stator joint heads and can be rotated by a rotating mechanism without moving the welding machine separately, thereby reducing the difficulty of welding and facilitating welding.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A wind turbine stator welding machine, comprising:

[0007] Connecting flange, used for fixed connection with the stator;

[0008] A slewing mechanism rotatably disposed on the connecting flange;

[0009] A welding machine support platform, which is arranged on the slewing mechanism and can realize relative rotation with the connecting flange along with the rotation of the slewing mechanism;

[0010] A welding machine is arranged on the welding machine support platform, and the welding machine is used for welding the stator heads.

[0011] Preferably, the welding machine support platform is a plate-shaped structure, and a plurality of limit blocks are provided on the welding machine support platform, and the limit blocks are used to achieve the limitation of the welding machine.

[0012] Preferably, the limit block is an L-shaped sheet piece, and four limit blocks are provided and arranged along a rectangle.

[0013] Preferably, the connecting flange is arranged at the middle position of the upper end surface of the stator head, the connecting flange is a circular plate-shaped structure, and a plurality of through holes are evenly distributed on the edge of the connecting flange.

[0014] Preferably, the welding machine comprises a base, a rotating rod and a welding gun, the base is detachably connected to the welding machine support platform, and the welding gun is arranged at the end of the rotating rod.

[0015] Preferably, the rotating rod includes a first rotating rod, a second rotating rod and a third rotating rod, the first rotating rod is fixed to the base, the second rotating rod is rotatably connected to the first rotating rod, the third rotating rod is rotatably connected to the second rotating rod, and the welding gun is arranged on the third rotating rod.

[0016] Preferably, the connecting portion between the first rotating rod and the second rotating rod and the connecting portion between the second rotating rod and the third rotating rod are both provided with a positioning device, and the positioning device is used to achieve position fixing of the second rotating rod and the third rotating rod.

[0017] Preferably, two notches are provided on the welding machine support platform, and the notches are used to reduce the difficulty of installing and disassembling the welding machine.

[0018] The utility model provides a welding machine for wind turbine stator joint ends. The device is provided with a connecting flange on the upper end of the stator joint end. The connecting flange is fixedly connected to the stator joint end. The connecting flange is connected to a welding machine support platform through a rotating mechanism. A welding machine is provided on the welding machine support platform, so that the welding machine can rotate along with the welding machine support platform, which is convenient for adjusting the direction of the welding machine at any time, that is, adjusting the welding point. There is no need to move the welding machine after completing welding at each welding point, which can greatly reduce the labor intensity of employees in the stator joint end welding process and save human resources. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0020] Figure 1 A top view of the welding machine support platform and the connecting flange assembly provided by the utility model;

[0021] Figure 2 A cross-sectional view of the welding machine support platform and the connecting flange assembly provided by the utility model;

[0022] Figure 3 A schematic diagram of the structure of a wind turbine stator joint welding machine and a stator joint welding machine provided by the utility model;

[0023] Figure 4 The utility model is a structural schematic diagram of a welding machine support platform and a connecting flange assembly.

[0024] Figures 1 to 4 , the reference numerals include:

[0025] 1 is a connecting flange, 1-1 is a through hole, 2 is a rotating mechanism, 3 is a welding machine support platform, 3-1 is a limit block, 4 is a welding machine, 4-1 is a base, 4-2 is a rotating rod, 4-21 is a first rotating rod, 4-22 is a second rotating rod, 4-23 is a third rotating rod, 4-3 is a welding gun, 5 is a stator head, and 6 is a welding point. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] The core of the utility model is to provide a welding machine for wind turbine stator joint ends. The welding machine can be installed on the stator joint ends. The rotation of the welding machine can be achieved through a rotary mechanism to change the direction of the welding machine without moving the welding machine, thereby reducing the difficulty of welding and facilitating welding.

[0028] It should be noted that the directions or positional relationships indicated by “upper”, “lower”, etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present application.

[0029] The present application provides a welding machine for wind turbine stator joint ends, comprising: a connecting flange 1, a rotary mechanism 2, a welding machine support platform 3 and a welding machine 4;

[0030] The connecting flange 1 is used for fixed connection with the stator head 5;

[0031] The slewing mechanism 2 is rotatably arranged on the connecting flange 1;

[0032] The welding machine support platform 3 is arranged on the slewing mechanism 2 and can realize relative rotation with the connecting flange 1 along with the rotation of the slewing mechanism 2;

[0033] The welding machine 4 is arranged on the welding machine supporting platform 3 , and the welding machine 4 is used for welding the stator head 5 .

[0034] Specifically, the stator head 5 is a cylindrical component, and the upper end of its outer circumference needs to be welded. Figure 3 The welding point 6 in the figure needs to be welded, please refer to the attached Figure 1 , Attachment Figure 2 With attached Figure 4 The stator head 5 is arranged at the middle position of the upper end of the stator head 5. The welding machine support platform 3 and the connecting flange 1 can be rotatably connected to the upper end surface of the welding machine support platform 3 through the rotating mechanism 2 for installing the welding machine 4. The welding machine 4 can adjust its direction as the welding machine support platform 3 rotates, which is convenient for welding multiple welding points 6. During the whole process, it is only necessary to rotate the welding machine support platform 3.

[0035] Optionally, the slewing mechanism 2 may be a remote control rotating mechanism, which can reduce the difficulty of the rotating process and avoid the waste of human resources.

[0036] On the basis of the above-mentioned embodiment, the welding machine support platform 3 is a plate-shaped structure, and a plurality of limit blocks 3 - 1 are provided on the welding machine support platform 3 , and the limit blocks 3 - 1 are used to realize the limit of the welding machine 4 .

[0037] Specifically, the welding machine support platform 3 is plate-shaped, and its area is slightly larger than the connecting flange 1. A plurality of protruding limit blocks 3-1 are arranged on the upper surface of the welding machine support platform 3. The gap between the limit blocks 3-1 is determined according to the size of the welding machine 4 to ensure that the limit blocks 3-1 fit the welding machine 4, so that the limit blocks 3-1 play a limiting role to prevent the welding machine 4 from sliding during the rotation of the welding machine support platform 3, thereby ensuring the welding effect of the welding point 6.

[0038] On the basis of the above-mentioned embodiment, the limiting block 3 - 1 is an L-shaped sheet-like member, and four limiting blocks 3 - 1 are provided and arranged along a rectangle.

[0039] Specifically, the base cross-section of the welding machine 4 is generally rectangular, so the limit block 3-1 uses an L-shaped sheet component, and the limit block 3-1 is arranged along the rectangle so that the welding machine 4 can be installed in the limit block 3-1. It should be noted that the limit block 3-1 is fixedly connected to the welding machine support platform 3 by welding to ensure structural stability.

[0040] Optionally, the welding machine support platform 3 and the limit block 3 - 1 can be an integrated structural component, which facilitates mass production while ensuring structural stability.

[0041] In some embodiments, the connecting flange 1 is disposed at the middle position of the upper end surface of the stator head 5 , the connecting flange 1 is a circular plate-shaped structure, and a plurality of through holes 1 - 1 are evenly distributed on the edge of the connecting flange 1 .

[0042] Specifically, a plurality of through holes 1-1 are arranged at the edge of the connecting flange 1, a stator middle flange is arranged in the middle of the upper end of the stator head 5, and threaded holes corresponding to the through holes 1-1 on the connecting flange 1 are arranged on the stator middle flange, so that the connecting flange 1 can be fixed to the stator head 5 by bolt connection, ensuring that the connecting flange 1 can be reliably connected to the stator head 5.

[0043] On the basis of the above-mentioned embodiment, the welding machine 4 includes a base 4-1, a rotating rod 4-2 and a welding gun 4-3. The base 4-1 is detachably connected to the welding machine support platform 3, and the welding gun 4-3 is arranged at the end of the rotating rod 4-2.

[0044] Specifically, the base 4-1 and the welding machine support platform 3 are preferably threadedly connected. When the welding machine 4 needs to be used for a long time, it needs to be fixed to the upper surface of the welding machine support platform 3 by bolts. If it is used temporarily, it does not need to be connected by bolts. The rotating rod 4-2 is arranged on the base 4-1, and a welding gun 4-3 is arranged at the other end of the rotating rod 4-2. The rotating rod 4-2 can adjust the upper and lower positions of the welding gun 4-3. The welding gun 4-3 is used for welding processing of the welding point 6, so as to facilitate welding at multiple positions in the vertical direction.

[0045] On the basis of the above embodiment, the rotating rod 4-2 includes a first rotating rod 4-21, a second rotating rod 4-22, and a third rotating rod 4-23. The first rotating rod 4-21 is fixed to the base 4-1, the second rotating rod 4-22 is rotatably connected to the first rotating rod 4-21, the third rotating rod 4-23 is rotatably connected to the second rotating rod 4-22, and the welding gun 4-3 is arranged on the third rotating rod 4-23.

[0046] Specifically, the first rotating rod 4-21 is fixed above the welding machine 4, as shown in the attached Figure 3 As shown, the first rotating rod 4-21 is vertically arranged, and the second rotating rod 4-22 and the third rotating rod 4-23 are rotatably connected to make the adjustment of the welding gun 4-3 more convenient. By rotating the welding machine support platform 3 and coordinating the rotation of the second rotating rod 4-22 and the third rotating rod 4-23, the coverage range of the welding gun 4-3 can be maximized.

[0047] On the basis of the above embodiments, the connecting part between the first rotating rod 4-21 and the second rotating rod 4-22 and the connecting part between the second rotating rod 4-22 and the third rotating rod 4-23 are both provided with a positioning device, which is used to fix the position of the second rotating rod 4-22 and the third rotating rod 4-23.

[0048] Specifically, the welding gun 4-3 is rotatably connected to the third rotating rod 4-23, and the positioning device can realize the positioning of the second rotating rod 4-22 and the third rotating rod 4-23. In the specific welding process, the second rotating rod 4-22 and the third rotating rod 4-23 can be driven to rotate and move by pulling the welding gun 4-3. When the welding gun 4-3 reaches the vicinity of the designated welding point 6, the positions of the second rotating rod 4-22 and the third rotating rod 4-23 are fixed by the positioning device. Only by slightly adjusting the welding gun 4-3, welding at the welding point 6 is performed. This can prevent the second rotating rod 4-22 and the third rotating rod 4-23 from having too much freedom, which will affect the welding process and improve the quality of the weld.

[0049] On the basis of the above-mentioned embodiment, two notches are provided on the welding machine support platform 3 , and the notches are used to reduce the difficulty of installing and disassembling the welding machine 4 .

[0050] Specifically, two notches are set on the welding machine support platform 3. When disassembling the welding machine 4, the welding machine 4 can be disassembled by simply pushing the welding machine 4 upward from the notches through the supporting device, without the need to squeeze and grab the outer shell of the welding machine 4. When assembling the welding machine 4, the supporting device can support the welding machine 4 from the notches to prevent the welding machine 4 from descending too quickly when being installed from top to bottom, thereby damaging the welding machine support platform 3.

[0051] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0052] The above is a detailed introduction to a wind turbine stator welding machine provided by the utility model. This article uses specific examples to illustrate the principle and implementation method of the utility model. The description of the above embodiment is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A welding machine for wind turbine stator jointing, characterized in that: include: A connecting flange (1) is used for fixed connection with the stator head (5); A slewing mechanism (2) rotatably disposed on the connecting flange (1); A welding machine support platform (3) is arranged on the rotating mechanism (2) and can realize relative rotation with the connecting flange (1) as the rotating mechanism (2) rotates; A welding machine (4) is arranged on the welding machine support platform (3), and the welding machine (4) is used for welding the stator head (5).

2. The wind turbine generator stator joint welding machine according to claim 1, characterized in that: The welding machine support platform (3) is a plate-shaped structure, and a plurality of limit blocks (3-1) are provided on the welding machine support platform (3), wherein the limit blocks (3-1) are used to achieve the limit of the welding machine (4).

3. The wind turbine generator stator joint welding machine according to claim 2, characterized in that: The limiting block (3-1) is an L-shaped sheet-like piece, and four limiting blocks (3-1) are provided and arranged along a rectangle.

4. The wind turbine generator stator joint welding machine according to claim 1, characterized in that: The connecting flange (1) is arranged at the middle position of the upper end surface of the stator head (5); the connecting flange (1) is a circular plate-shaped structure, and a plurality of through holes (1-1) are evenly distributed at the edge of the connecting flange (1).

5. The wind turbine generator stator joint welding machine according to any one of claims 1 to 4, characterized in that: The welding machine (4) comprises a base (4-1), a rotating rod (4-2) and a welding gun (4-3); the base (4-1) is detachably connected to the welding machine support platform (3); and the welding gun (4-3) is arranged at the end of the rotating rod (4-2).

6. The wind turbine generator stator joint welding machine according to claim 5, characterized in that: The rotating rod (4-2) comprises a first rotating rod (4-21), a second rotating rod (4-22), and a third rotating rod (4-23); the first rotating rod (4-21) is fixed to the base (4-1); the second rotating rod (4-22) is rotatably connected to the first rotating rod (4-21); the third rotating rod (4-23) is rotatably connected to the second rotating rod (4-22); and the welding gun (4-3) is arranged on the third rotating rod (4-23).

7. The wind turbine generator stator joint welding machine according to claim 6, characterized in that: The connecting portion between the first rotating rod (4-21) and the second rotating rod (4-22) and the connecting portion between the second rotating rod (4-22) and the third rotating rod (4-23) are both provided with positioning devices, and the positioning devices are used to achieve position fixation of the second rotating rod (4-22) and the third rotating rod (4-23).

8. The wind turbine generator stator joint welding machine according to claim 7, characterized in that: The welding machine support platform (3) is provided with two notches, and the notches are used to reduce the difficulty of installing and disassembling the welding machine (4).

Images