Wind turbine stator bracket assembly welding tool

Abstract

The invention discloses a wind turbine stator support assembly and welding tool, comprising a plurality of main frames assembled around a circumference, the stator support comprising a plurality of support units corresponding to the main frames, the main frames comprising a top positioning plate, a bottom positioning plate, a pressure plate, a movable positioning plate, a phase positioning plate, a rib plate positioning plate and a limit plate, thereby ensuring the overall radial accuracy of the stator support and preventing radial stress deformation; and the tool can directly realize the assembly and welding of the stator support at one time, thereby reducing safety hazards, thereby saving costs and improving efficiency while improving accuracy and preventing deformation, and promoting safe production.

Description

Technical Field

[0001] The invention relates to the field of processing and assembling of a wind generator stator bracket, and in particular to an assembly and welding tool for a wind generator stator bracket. Background Art

[0002] The existing stator bracket processing assembly technology is divided into two steps, generally using the first tooling for assembly and spot welding, and then transferring to the second tooling for welding; however, the existing processing technology has many processing disadvantages, mainly: 1. Separate processing will cause errors in its clamping and positioning; 2. The insecurity of multiple lifting and transportation of workpieces; 3. Waste of processing time and efficiency; 4. The assembly accuracy and welding deformation exceed the process requirements; 5. The weld seam of the welding spot affects the subsequent welding quality. Summary of the invention

[0003] In order to overcome the above-mentioned shortcomings, the present invention provides a wind turbine stator bracket assembly welding tool.

[0004] A wind turbine stator bracket assembly welding tool comprises a plurality of main frames assembled around a circle, the stator bracket comprises a plurality of bracket units corresponding to the main frames, the bracket units comprise an upper end plate, a bracket body and a lower end plate, a plurality of "X"-shaped plates are integrally connected to the surface of the bracket body, a plurality of small rib plates are fixedly connected between the "X"-shaped plates, the two ends of the "X"-shaped plates are respectively fixedly connected to the upper end plate and the lower end plate, and a convex cavity is provided inside; the upper and lower ends of the main frame are respectively fixedly connected to a top positioning plate and a bottom positioning plate, the top positioning plate and the upper end plate, and the bottom positioning plate and the lower end plate are fastened by bolts and then clamped by a plurality of first C-shaped clips; the left and right ends of the main frame are fixedly connected to side fixing plates, and the top of the "X"-shaped plate is provided with at least Two pressing plates, the bottom surface of the pressing plate contacts the top surface of the "X"-shaped plate, and the two ends of the pressing plate are detachably connected to the side fixing plates respectively; a movable positioning plate is provided in the convex cavity, the top of the movable positioning plate contacts the top of the convex cavity, and the tail end is fixedly connected to the main frame; a phase positioning plate is provided between the "X"-shaped plates near the upper end plate and the lower end plate, and the phase positioning plate is detachably connected to the main frame; the movable positioning plate, the rib plate positioning plate, the phase positioning plate, the pressing plate and the limit plate, the upper end plate and the lower end plate are respectively integrally connected to the upper and lower ends of the bracket body; a second C-type clamp and a rib plate positioning plate are respectively provided at the small rib plates, the second C-type clamp clamps the small rib plate and the rib plate positioning plate, the rib plate positioning plate is fixedly connected to the bracket body, and the second C-type clamp is detachably connected to the bracket body.

[0005] According to a preferred embodiment of the present invention, a plurality of limiting plates are provided between the pressure plates and sleeved on the "X"-shaped plates, and the limiting plates are provided with notches the same in number as the "X"-shaped plates and the same in width as the raised parts of the "X"-shaped plates.

[0006] According to a preferred embodiment of the present invention, the movable positioning plate comprises a supporting block and a connecting rod, the supporting block is connected to one end of the connecting rod via a pin, and the other end of the connecting rod is fixedly connected to the main frame.

[0007] According to a preferred embodiment of the present invention, the phase positioning plate comprises a supporting block and a connecting piece, the supporting block has the same width as the spacing between the X-shaped plates and is detachably connected to one end of the connecting piece, and the other end of the connecting piece is detachably connected to the main frame.

[0008] The beneficial effects of the present invention are as follows: by arranging the top positioning plate and the bottom positioning plate of the main frame, the stator bracket is positioned as a whole up and down, and the stress deformation of the stator bracket in the up and down directions is controlled; at the same time, a pressure plate, a movable positioning plate, a phase positioning plate, a rib plate positioning plate and a limit plate are arranged to ensure the accuracy of the "J"-shaped plate itself and the accuracy between the "J"-shaped plates, and to ensure the radial accuracy of the stator bracket as a whole, and to prevent radial stress deformation; and through the tooling, the assembly and welding of the stator bracket can be directly realized at one time, so the potential safety hazards are also reduced, so that while improving the accuracy and preventing deformation, the cost is saved, the efficiency is improved, and safe production is promoted. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] The present invention will now be described by way of example with reference to the accompanying drawings, in which:

[0010] Figure 1 It is a structural schematic diagram of the present invention:

[0011] Figure 2 is a front view of the present invention;

[0012] Figure 3 is a top view of the internal section of the present invention;

[0013] Among them: top positioning plate 1, first C-shaped clamp 2, small rib plate 3, second C-shaped clamp 4, side fixing plate 5, I-shaped plate 6, bottom positioning plate 7, phase positioning plate 8, pressure plate 9, limit plate 10, rib plate positioning plate 11, support block 12, top support block 13, pin shaft 14, connecting rod 15, connecting piece 16. DETAILED DESCRIPTION

[0014] The present invention will now be described in further detail with reference to the accompanying drawings. The accompanying drawings are simplified schematic diagrams, which only illustrate the basic structure of the present invention in a schematic manner, and thus only show the components related to the present invention.

[0015] In the description of the invention, it should be noted that the terms "upper", "lower", "inside", "outside", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the invention.

[0016] In the description of the invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two components, and a fixed connection can be welding, gluing, etc. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0017] like Figure 1-3 As shown, a wind turbine stator bracket assembly welding tool includes a plurality of main frames assembled around a circle, the stator bracket includes a plurality of bracket units corresponding to the main frames, the bracket unit includes an upper end plate, a bracket body and a lower end plate, a plurality of "X"-shaped plates 6 are integrally connected to the surface of the bracket body, a plurality of small rib plates 3 are fixedly connected between the "X"-shaped plates 6, the two ends of the "X"-shaped plates 6 are respectively fixedly connected to the upper end plate and the lower end plate, and a convex cavity is provided inside; the stator bracket is assembled by the bracket units around the circumference through the main frame, and can be directly formed in one step, thereby reducing production costs and safety hazards and improving production efficiency.

[0018] The upper and lower ends of the main frame are respectively fixedly connected with a top positioning plate 1 and a bottom positioning plate 7. The top positioning plate 1 and the upper end plate, as well as the bottom positioning plate 7 and the lower end plate are fastened by bolts and then clamped by a plurality of first C-shaped clips 2. The upper end plate and the lower end plate of the bracket unit are fastened and connected by the top positioning plate 1 and the bottom positioning plate 7, respectively, which not only plays a positioning role, but also prevents stress deformation caused by welding assembly in the upper and lower directions of the bracket unit.

[0019] The left and right ends of the main frame are fixedly connected with side fixing plates 5, and at least two pressing plates 9 are arranged on the top of the "X"-shaped plate 6. The bottom surface of the pressing plate 9 contacts the top surface of the "X"-shaped plate 6, and the two ends of the pressing plate 9 are detachably connected to the side fixing plates 5 by bolts. The main frames are connected by the side fixing plates 5 to realize the pre-splicing of the stator bracket, and then the bracket units are welded to each other to form the stator bracket. The pressing plate 9 is provided to ensure that when the bracket unit is welded or spot-welded, the "X"-shaped plate 6 can be prevented from expanding due to thermal stress and deformation.

[0020] A movable positioning plate is provided in the convex cavity, the top of the movable positioning plate is in contact with the top of the convex cavity, and the tail end is fixedly connected to the main frame; a phase positioning plate 8 is provided between the I-shaped plates 6 near the upper end plate and the lower end plate, and the phase positioning plate 8 and the main frame are detachably connected by bolts; the movable positioning plate and the phase positioning plate 8 are arranged to cooperate with each other, which can prevent the spacing between the I-shaped plates 6 from changing due to thermal stress, thereby preventing the stator bracket from being thermally deformed in the radial direction as a whole.

[0021] A second C-shaped clamp 4 and a rib plate positioning plate 11 are respectively provided at the small rib plates 3. The second C-shaped clamp 4 clamps the small rib plates 3 and the rib plate positioning plate 11. The rib plate positioning plate 11 is fixedly connected to the bracket body, and the second C-shaped clamp 4 and the bracket body are detachably connected by bolts. The small rib plates 3 are arranged between the I-shaped plates 6 in order to reinforce the I-shaped plates 6 on the one hand, and to prevent the I-shaped plates 6 from deformation on the other hand. However, when welding the small rib plates 3, the rib plate positioning plate 11 bracket is arranged to determine the welding position of the small rib plates 3. To prevent the small rib plates 3 from deformation, the second C-shaped clamp 4 is arranged.

[0022] A plurality of limit plates 10 are also provided between the pressure plates 9 and are sleeved on the "J"-shaped plate 6. The limit plates 10 are provided with notches of the same number as the "J"-shaped plate 6 and of the same width as the raised parts of the "J"-shaped plate 6. The limit plates 10 are provided to prevent the "J"-shaped plate 6 from deforming. Because the "J"-shaped plate 6 is relatively long, the "J"-shaped plate 6 needs to be clamped in multiple sections to prevent deformation.

[0023] The phase positioning plate 8 includes a support block 12 and a connecting member 16. The width of the support block 12 is the same as the spacing of the "X"-shaped plate 6, and the support block 12 is detachably connected to one end of the connecting member 16 by bolts, and the other end of the connecting member 16 is detachably connected to the main frame by bolts; the movable positioning plate includes a top support block 13 and a connecting rod 15. The top support block 13 is connected to one end of the connecting rod 15 by a pin shaft 14, and the other end of the connecting rod 15 is fixedly connected to the main frame; the phase positioning plate 8 and the movable positioning plate cooperate with each other, and the phase positioning plate 8 is used to ensure that the spacing of the "X"-shaped plate 6 is fixed. When the "X"-shaped plate 6 is deformed, the phase positioning plate 8 plays a corrective role to prevent deformation. At this time, the movable positioning plate can rotate around the axis, so it can adapt to the corrective deformation of the phase positioning plate 8. At the same time, the support block 12 supports the top of the convex cavity to prevent stress deformation of the "X"-shaped plate 6.

[0024] The above is based on the present invention as an inspiration. Through the above description, relevant staff can make various changes and modifications without departing from the technical idea of ​​this invention. The technical scope of this invention is not limited to the content in the specification, and its technical scope must be determined according to the scope of the claims.

Claims

1. A wind turbine stator support assembly welding tool, comprising a plurality of main frames assembled around a circumference, the stator support comprising a plurality of support units corresponding to the main frames, the support units comprising an upper end plate, a support body and a lower end plate, a plurality of "X"-shaped plates (6) being integrally connected to the surface of the support body, a plurality of small rib plates (3) being fixedly connected between the "X"-shaped plates (6), the two ends of the "X"-shaped plates (6) being respectively fixedly connected to the upper end plate and the lower end plate, and a convex cavity being provided inside; the characteristics are as follows: The upper and lower ends of the main frame are respectively fixedly connected with a top positioning plate (1) and a bottom positioning plate (7), the top positioning plate (1) and the upper end plate, and the bottom positioning plate (7) and the lower end plate are fastened by bolts and then clamped by a plurality of first C-shaped clamps (2); the left and right ends of the main frame are fixedly connected with side fixing plates (5), the top of the "X"-shaped plate (6) is provided with at least two pressing plates (9), the bottom surface of the pressing plate (9) is in contact with the top surface of the "X"-shaped plate (6), and the two ends of the pressing plate (9) are respectively detachably connected to the side fixing plates (5); a movable positioning plate is provided in the convex cavity, the top of the movable positioning plate is in contact with the top of the convex cavity, and the tail end is fixedly connected to the main frame; A phase positioning plate (8) is provided between the "X"-shaped plates (6) near the upper end plate and the lower end plate, and the phase positioning plate (8) is detachably connected to the main frame; a movable positioning plate, a rib plate positioning plate (11), a phase positioning plate (8), a pressure plate (9) and a limit plate (10), and the upper end plate and the lower end plate are respectively connected integrally to the upper and lower ends of the bracket body; a second C-shaped clamp (4) and a rib plate positioning plate (11) are provided at each of the small rib plates (3), the second C-shaped clamp (4) clamps the small rib plate (3) and the rib plate positioning plate (11), the rib plate positioning plate (11) is fixedly connected to the bracket body, and the second C-shaped clamp (4) is detachably connected to the bracket body; A plurality of limit plates (10) are provided between the pressing plates (9) and are sleeved on the "J"-shaped plates (6). The limit plates (10) are provided with notches of the same number as the "J"-shaped plates (6) and of the same width as the raised portions of the "J"-shaped plates (6); The movable positioning plate comprises a supporting block (13) and a connecting rod (15); the supporting block (13) is connected to one end of the connecting rod (15) via a pin shaft (14); and the other end of the connecting rod (15) is fixedly connected to the main frame; The phase positioning plate (8) comprises a supporting block (12) and a connecting piece (16); the supporting block (12) has the same width as the spacing of the "X"-shaped plate (6) and is detachably connected to one end of the connecting piece (16); and the other end of the connecting piece (16) is detachably connected to the main frame.

Images