A mold assembly for a wind turbine nacelle cover and a method for manufacturing the nacelle cover

Abstract

The present invention provides a mold assembly for a nacelle cover of a wind turbine generator set and a method for manufacturing the nacelle cover, and relates to the field of molds for nacelle covers of wind turbine generator sets. The scheme adopted is: the top cover plate mold and the bottom plate mold both include a top corner sub-mold block 1, a center sub-mold block 1 and a side sub-mold block 1, four top corner sub-mold blocks 1 are provided, four side sub-mold blocks 1 are provided, and the side plate mold includes a top corner sub-mold block 2, a center sub-mold block 2 and a flanging sub-mold block 2, the center sub-mold block 1 and the center sub-mold block 2 both include at least two sizes, and the side sub-mold block 1 and the flanging sub-mold block 2 both include at least two sizes. The present invention can be suitable for assembling nacelle cover molds of various sizes to manufacture nacelles of various sizes, thereby reducing the cost of updating and iterating the nacelle cover of the wind turbine generator set.

Description

Technical Field

[0001] The invention relates to the field of molds for wind turbine generator nacelle covers, and in particular to a mold assembly for a wind turbine generator nacelle cover and a method for manufacturing the nacelle cover. Background Art

[0002] As an important component of a wind turbine, the nacelle cover is a protective structure of the wind turbine, which enables the wind turbine to work normally in harsh meteorological environments and protects internal equipment and personnel from external environmental factors such as wind, rain, snow, salt spray, and ultraviolet radiation. The nacelle cover includes a top cover panel, a bottom panel, and side panels that are connected to each other. The joints of each panel are provided with flanges and connected by bolts. In the manufacturing process of the nacelle cover panel, a positive mold is first used to manufacture a negative mold for each panel through processes such as laying fiberglass cloth, pasting resin, and curing. Then the negative mold is used to manufacture each panel using vacuum infusion technology.

[0003] In the prior art, with the expansion of aircraft models, the top cover plate, bottom plate and side plate of the cabin cover of each aircraft model need to produce corresponding types of molds. The expansion of the cabin cover model is mainly manifested in the increase of length, width and height, which leads to different lengths and widths of the top cover plate, bottom plate and side plate required for different cabin covers, resulting in the need to manufacture different types of female molds. Since the cabin cover is relatively large, at the same time, in order to ensure the rigidity of the mold, a set of welded steel frames are welded at the bottom of the mold.

[0004] Although the above technical solution can meet the needs of aircraft model expansion and development, since one set of cabin cover corresponds to one set of mold design, there are many types of molds, and they are not interchangeable with each other, resulting in high mold costs. At the same time, the steel frame is permanently fixed to a set of mold components and cannot be disassembled or applied to other molds. The utilization rate of the steel frame is low, further increasing the mold cost. The above two aspects result in high costs for aircraft model expansion and development, which restricts the updating and iteration of the model. Summary of the invention

[0005] In order to solve the technical problem of high cost of wind turbine nacelle cover molds in the above-mentioned prior art, the present invention provides a mold assembly for a wind turbine nacelle cover and a nacelle cover manufacturing method, which can be suitable for assembling nacelle cover molds of various sizes to manufacture nacelle cover panels of various sizes, thereby reducing the cost of updating and iterating the wind turbine nacelle cover.

[0006] In order to solve the above technical problems, in the first aspect, the present invention provides a mold assembly for a nacelle cover of a wind turbine generator set, including a top cover plate mold, a bottom plate mold and a side plate mold, the top cover plate mold and the bottom plate mold each include at least two front section molds and one rear section mold, the front section mold includes a top corner sub-mold block one, a center sub-mold block one, a side sub-mold block one and a flanging sub-mold block one, the rear section mold includes a front top corner sub-mold block, a rear top corner sub-mold block, a center sub-mold block three, a side sub-mold block two and a flanging sub-mold block three, the side plate mold includes a top corner sub-mold block two, a center sub-mold block two and a flanging sub-mold block two, the side sub-mold block one and the flanging sub-mold block two are each provided with at least four , the side sub-mold block 2 is provided with at least three, the central sub-mold block 1, the central sub-mold block 2, the central sub-mold block 3, the side sub-mold block 1, the side sub-mold block 2, the flanging sub-mold block 1, the flanging sub-mold block 2, and the flanging sub-mold block 3 all include at least two sizes, and also include a bottom plate, the central sub-mold block 1, the top corner sub-mold block 1, the side sub-mold block 1, the front top corner sub-mold block, the back top corner sub-mold block, the central sub-mold block 3, the side sub-mold block 2, the flanging sub-mold block 3, the top corner sub-mold block 2, the central sub-mold block 2 and the flanging sub-mold block 2 can all be detachably mounted on the bottom plate. By disassembling the top cover panel mold, the bottom plate mold and the side panel mold into multiple sub-molds and the corresponding sub-molds have different size specifications, they can be assembled according to the design dimensions of the top cover panel, the bottom cover panel and the side panel, so as to realize the sub-molds of the common parts of the nacelle covers of units of different specifications, and the bottom plate can be reused, thereby reducing the mold production cost and facilitating the update and iteration of the nacelle cover of the wind turbine generator set.

[0007] Furthermore, the top corner sub-mold block 1 and the front top corner sub-mold block have the same structure, both comprising a main board 1, a side panel 1 and a flap panel 1 are adjacently arranged on the main board 1, the height of the side panel 1 is greater than the height of the flap panel 1, the side panel 1 and the flap panel 1 are both perpendicular to the main board 1, a transition arc is arranged at the connection between the side panel 1 and the main board 1, a flap panel 2 is vertically arranged on the side panel 1, and the flap panel 2 is vertically connected to the flap panel 1.

[0008] Furthermore, the side sub-mold block 1 and the side sub-mold block 2 have the same structure and both include a main board 2. A side panel 2 is arranged on one side of the main board 2. The side panel 2 is perpendicular to the main board 2. The height of the side panel 2 is the same as the height of the side panel 1. A transition arc is arranged at the connection between the side panel 2 and the main board 2. The heights of the side panels 2 of the side sub-mold block 1 or the side sub-mold block 2 of different sizes are the same.

[0009] Furthermore, the structures of the flanging sub-mold block one, the flanging sub-mold block two and the flanging sub-mold block three are the same, and all include a main board three, on which a flap three is vertically arranged, and the height of the flap three is the same as that of the flap one. The heights of the flap three of the flanging sub-mold block one, the flanging sub-mold block two or the flanging sub-mold block three of different sizes are the same.

[0010] Furthermore, the rear top corner sub-mold block includes a main board four, on which side panels three and four are adjacently arranged, side panel three is transitionally connected to the main board four, and the heights of side panel three, side panel four and side panel two are all the same.

[0011] Furthermore, the top corner sub-mold block 2 includes a main board 5, on which two flaps 4 are adjacently arranged, the flaps 4 are perpendicular to the main board 5, and the height of the flaps 4 is the same as the height of the flap 1.

[0012] Furthermore, one of the central sub-mold block 1, the central sub-mold block 2 and the central sub-mold block 3 has a square structure. By setting one of the central sub-mold block 1, the central sub-mold block 3 and the central sub-mold block 2 to a square, the length or width dimensions can be changed by changing the placement positions of other types of sub-mold blocks, thereby reducing the types of molds and facilitating manufacturing and management.

[0013] Furthermore, the installation surfaces of the central sub-mold block 1, the top corner sub-mold block 1, the side sub-mold block 1, the front top corner sub-mold block, the rear top corner sub-mold block, the central sub-mold block 3, the side sub-mold block 2, the flanging sub-mold block 3, the top corner sub-mold block 2, the central sub-mold block 2 and the flanging sub-mold block 2 are all provided with iron sheets and a plurality of installation grooves, and a plurality of installation protrusions are provided on the bottom plate, each of which can be extended into the corresponding installation groove, and an electromagnet is provided on the bottom plate. By using the installation protrusions and the installation grooves for matching and combining the use of the electromagnet, it is convenient to disassemble and assemble each sub-mold on the bottom plate, and ensure that each sub-mold block does not shift, thereby ensuring the manufacturing accuracy of each plate.

[0014] In a second aspect, the present invention provides a method for producing a nacelle cover of a wind turbine generator set, using the above-mentioned mold assembly for the nacelle cover of the wind turbine generator set, comprising the following steps:

[0015] S01: According to the sizes of the top cover plate, bottom plate and side plate of the nacelle cover of the wind turbine generator set, the top cover plate mold, the bottom plate mold and the side plate mold are assembled into corresponding molds;

[0016] S02: Apply wax to the assembly gaps of the top cover plate mold, the bottom plate mold and the side plate mold to seal the gaps;

[0017] S03: Use the top cover plate mold, the bottom plate mold and the side plate mold for vacuum infusion;

[0018] S04: After curing, the finished products of the top cover plate, the bottom plate and the side plate are obtained;

[0019] S05: Assemble the finished products into a wind turbine nacelle cover.

[0020] Furthermore, S01 includes the following steps:

[0021] S011: According to the sizes of the top cover plate, bottom plate and side plate of the nacelle cover of the wind turbine generator set, the modules are divided in combination with the sizes of the central sub-mold block 1, the top corner sub-mold block 1, the side sub-mold block 1, the front top corner sub-mold block, the rear top corner sub-mold block, the central sub-mold block 3, the side sub-mold block 2, the flanging sub-mold block 3, the top corner sub-mold block 2, the central sub-mold block 2 and the flanging sub-mold block 2;

[0022] S012: When the sizes of the existing center sub-mold block 1, top corner sub-mold block 1, side sub-mold block 1, front top corner sub-mold block, rear top corner sub-mold block, center sub-mold block 3, side sub-mold block 2, flange sub-mold block 3, top corner sub-mold block 2, center sub-mold block 2 and flange sub-mold block 2 meet the size requirements of the top cover plate, bottom plate and side plate, they are spliced ​​into corresponding top cover plate molds, bottom plate molds and side plate molds. Otherwise, the required non-universal molds are manufactured according to the missing parts of the spliced ​​top cover plate molds, bottom plate molds and side plate molds, and then the corresponding mold splicing is performed. By manufacturing non-universal molds, it is ensured that various required molds can be spliced ​​to meet the requirements of wind turbine nacelle covers of various sizes and specifications.

[0023] It can be seen from the above technical solutions that the present invention has the following advantages:

[0024] The invention provides a mold assembly for a nacelle cover of a wind turbine generator set and a method for manufacturing the nacelle cover. By disassembling a top cover plate mold, a bottom plate mold and a side plate mold into a plurality of sub-molds and the corresponding sub-molds have different size specifications, the sub-molds can be assembled according to the design sizes of the top cover plate, the bottom cover plate and the side plate, so as to realize sub-molds of a common part of nacelle covers of different specifications of the units, and the sub-molds can be reused through the bottom plate, thereby reducing the production and manufacturing cost of the molds and facilitating the updating and iteration of the nacelle cover of the wind turbine generator set; by setting one of the central sub-mold blocks 1 and the central sub-mold block 2 to be square, the length or width direction size can be changed by changing the placement position of other types of sub-mold blocks, thereby reducing the types of molds and facilitating manufacturing and management; by using mounting protrusions and mounting grooves for matching, it is convenient to disassemble and assemble each sub-mold on the bottom plate, and it is ensured that each sub-mold block does not shift; by the suction effect of the electromagnet, it is ensured that the position of each sub-module is firm and does not shift, thereby ensuring the manufacturing accuracy of each plate; by manufacturing non-universal molds, it is ensured that various required molds can be spliced ​​to meet the requirements of nacelle covers of wind turbine generator sets of various sizes and specifications. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solution of the present invention, the accompanying drawings required for use in the description will be briefly introduced below. Obviously, the accompanying drawings in the following description 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.

[0026] Figure 1 It is a schematic structural diagram of the side panel mold in the first specific implementation mode of the present invention.

[0027] Figure 2 It is a schematic structural diagram of the front section mold in the first specific implementation mode of the present invention.

[0028] Figure 3 It is a schematic structural diagram of the rear-stage mold in the first specific implementation mode of the present invention.

[0029] Figure 4 It is a schematic diagram of the assembly structure of the front top corner sub-mold block and the side sub-module 2 in the first specific implementation mode of the present invention, or a schematic diagram of the assembly structure of the top corner sub-mold block 1 and the side sub-module 1.

[0030] Figure 5 It is a schematic diagram of the assembly structure of the top corner sub-mold block 2 and the flanging sub-mold block 2 in the first specific implementation mode of the present invention.

[0031] Figure 6 It is a schematic diagram of the assembly structure of the rear top corner sub-mold block and the side sub-module 2 in the specific implementation mode 1 of the present invention.

[0032] Figure 7 It is a structural schematic diagram of the flanging sub-mold block 2 in the specific implementation mode 1 of the present invention.

[0033] Figure 8 It is a schematic structural diagram of the bottom plate in the first specific implementation mode of the present invention.

[0034] In the figure, 1, bottom plate; 2, top corner sub-mold block 2; 3, flanging sub-mold block 2; 4, center sub-mold block 2; 5, top corner sub-mold block 1; 6, side sub-mold block 1; 7, flanging sub-mold block 1; 8, center sub-mold block 1; 9, front top corner sub-mold block; 10, side sub-mold block 2; 11, rear top corner sub-mold block; 12, flanging sub-mold block 3; 13, center sub-mold block 3; 14, mounting groove; 15, iron sheet; 16, foam layer 1; 17, mounting protrusion; 18, electromagnet; 21, side panel 1; 22, flap panel 2; 23, main board 1; 24, flap panel 1; 25, flap panel 4; 26, main board 5; 27, flap panel 3; 28, main board 3; 29, side panel 2; 30, main board 2; 33, side panel 3; 34, side panel 4; 35, main board 4. DETAILED DESCRIPTION

[0035] In order to make the purpose, features and advantages of the present invention more obvious and easy to understand, the technical scheme of the present invention will be clearly and completely described below in conjunction with the drawings in this specific embodiment. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of them. Based on the embodiments in this patent, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this patent. Specific implementation method 1

[0037] like Figures 1 to 3 As shown, this specific embodiment provides a mold assembly for a nacelle cover of a wind turbine generator set, including a bottom plate 1, a top cover plate mold, a bottom plate mold and a side plate mold. The top cover plate mold and the bottom plate mold have the same structure, and both include at least two front section molds and one rear section mold, such as Figure 2 As shown, the front-stage mold includes four top corner sub-mold blocks 5, a central sub-mold block 8, a side sub-mold block 6 and a flanging sub-mold block 7 located at the top corners, wherein the side sub-mold block 6 is located between two top corner sub-mold blocks 5 on the same side in the length direction, the flanging sub-mold block 7 is located between two top corner sub-mold blocks 5 on the same side in the width direction, and the central sub-mold block 8 is surrounded by the side sub-mold block 6 and the flanging sub-mold block 7; Figure 3As shown, the rear section mold includes two front top corner sub-mold blocks 9 at the front end top corners in the length direction, two rear top corner sub-mold blocks 11 at the rear end, a central sub-mold block three 13, a side sub-mold block two 10 and a flanging sub-mold block three 12, wherein the side sub-mold block two 10 is located between the front top corner sub-mold block 9 and the rear top corner sub-mold block 11 on the same side in the length direction and between the two rear top corner sub-mold blocks 11 on the same side in the width direction, the flanging sub-mold block three 12 is located between the two front top corner sub-mold blocks 9 on the same side in the width direction, and the central sub-mold block three 13 is surrounded by the side sub-mold block two 10 and the flanging sub-mold block three 12; Figure 1 As shown, the side panel mold includes a top corner sub-mold block 2 2, a center sub-mold block 2 4 and a flanging sub-mold block 2 3 located at four top corners, wherein the flanging sub-mold block 2 3 is located between two top corner sub-mold blocks 2 2 on the same side, and the center sub-mold block 2 4 is surrounded by the flanging sub-mold block 2 3; at least four side sub-mold blocks 1 6 and flanging sub-mold blocks 2 3 are provided, at least three side sub-mold blocks 2 10 are provided, the center sub-mold block 1 8, the center sub-mold block 2 4, the center sub-mold block 3 13, and the side sub-mold block 1 The mold block 1 6, the side mold block 2 10, the flanged mold block 1 7, the flanged mold block 2 3, and the flanged mold block 3 12 all include at least two sizes, and the central mold block 1 8, the top corner mold block 1 5, the side mold block 1 6, the front top corner mold block 9, the rear top corner mold block 11, the central mold block 3 13, the side mold block 2 10, the flanged mold block 3 12, the top corner mold block 2 2, the central mold block 2 4, and the flanged mold block 2 3 can all be detachably mounted on the bottom plate 1. By disassembling the top cover plate mold, the bottom plate mold, and the side plate mold into multiple sub-molds and the corresponding sub-molds have different sizes, they can be assembled according to the design sizes of the top cover plate, the bottom cover plate, and the side plate, so as to realize the sub-molds of the common parts of the nacelles of different specifications of the units, and can be reused through the bottom plate 1, thereby reducing the mold production and manufacturing costs, which is beneficial to the renewal and iteration of the nacelle cover of the wind turbine generator set.

[0038] like Figures 2 to 4As shown, in the present specific embodiment, the top corner sub-mold block 5 and the front top corner sub-mold block 9 have the same structure, and the following specific structure can be adopted: both include a main board 23, on which a side panel 21 and a flap 24 are adjacently arranged, the height of the side panel 21 is greater than the height of the flap 24, the side panel 21 and the flap 24 are both perpendicular to the main board 23, a transition arc is arranged at the connection between the side panel 21 and the main board 23, a flap 22 is vertically arranged on the side panel 21, and the flap 22 is vertically connected to the flap 1 24, among the four top corner sub-mold blocks 5 on the front-stage mold, the two top corner sub-mold blocks 5 on the diagonal line have the same structure, the positions of the flaps 24 of the two top corner sub-mold blocks 5 on the same side of the front-stage mold are arranged in a mirror image with respect to the center line of the front-stage mold, and the positions of the flaps 24 of the two front top corner sub-mold blocks 9 on the rear-stage mold are arranged in a mirror image with respect to the center line of the rear-stage mold.

[0039] like Figures 2 to 4 As shown, in this specific embodiment, the side mold block 1 6 and the side mold block 2 10 have the same structure, and the following specific structure can be adopted: at least one of the two includes a main board 2 30, a side panel 29 is arranged on one side of the main board 2 30, the side panel 29 is perpendicular to the main board 2 30, the height of the side panel 29 is the same as the height of the side panel 1 21, a transition arc is arranged at the connection between the side panel 29 and the main board 2 30, the dimensions of different main boards 2 30 along the length direction are set with a step difference according to the specifications of the cabin cover, and the heights of the side panels 29 of the side mold blocks 1 6 or the side mold blocks 2 10 of different sizes are the same.

[0040] like Figure 6 As shown, in this specific embodiment, the rear top corner sub-mold block 11 can adopt the following specific structure: the rear top corner sub-mold block 11 includes a main board four 35, and the main board four 35 is adjacently provided with a side panel three 33 and a side panel four 34, the side panel three 33 is transitionally connected with the main board four 35, and the heights of the side panel three 33, the side panel four 34 and the side panel two 29 are all the same.

[0041] like Figure 5 As shown, in this specific embodiment, the top corner sub-mold block 2 2 can adopt the following specific structure: the top corner sub-mold block 2 2 includes a main board 5 26, and two flaps 4 25 are adjacently arranged on the main board 5 26, the flaps 4 25 are perpendicular to the main board 5 26, and the height of the flaps 4 25 is the same as the height of the flaps 1 24. Among the four top corner sub-mold blocks 2 2, the structures of the two top corner sub-mold blocks 2 2 at the diagonal are the same, and the positions of the flaps 4 25 of the two top corner sub-mold blocks 2 2 on the same side are mirror-arranged with respect to the center line of the side panel mold.

[0042] like Figure 1 and Figure 5As shown, in this specific embodiment, the structures of the flanging sub-mold block one 7, the flanging sub-mold block two 3 and the flanging sub-mold block three 12 are the same, and the following specific structure can be adopted: all three include a main board three 28, and a flap three 27 is vertically arranged on the main board three 28. The height of the flap three 27 is the same as the height of the flap one 24, and the heights of the flap three 27 of the flanging sub-mold blocks one 7, the flanging sub-mold block two 3 or the flanging sub-mold block three 12 of different sizes are the same.

[0043] In order to reduce the types of sub-mold blocks and facilitate management and manufacturing, one of the size specifications of the central sub-mold block 1 8, the central sub-mold block 3 13 and the central sub-mold block 2 4 is a square structure; the length or width dimension can be changed by changing the placement position of other types of sub-mold blocks, thereby reducing the types of molds and facilitating manufacturing and management.

[0044] In order to facilitate disassembly and assembly on the base plate 1 and ensure reliable connection without displacement, the mounting surfaces of the center sub-mold block 8, the top corner sub-mold block 5, the side sub-mold block 6, the front top corner sub-mold block 9, the rear top corner sub-mold block 11, the center sub-mold block three 13, the side sub-mold block two 10, the flanging sub-mold block three 12, the top corner sub-mold block two 2, the center sub-mold block two 4 and the flanging sub-mold block two 3 are provided with iron sheets 15 and multiple mounting grooves 14, the base plate 1 is provided with multiple mounting protrusions 17, each mounting protrusion 17 can be extended into the corresponding mounting groove 14, and the base plate 1 is provided with an electromagnet 18; specifically, the iron sheet 15 is embedded in the mounting surface and the upper part of the iron sheet 15 is filled with a foam layer 16, and the inside of the mounting protrusion 17 is filled with a foam layer 2. Specific implementation method 2

[0046] This specific embodiment provides a method for producing a nacelle cover of a wind turbine generator set, using the above-mentioned mold assembly for the nacelle cover of the wind turbine generator set, comprising the following steps:

[0047] S01: according to the sizes of the top cover plate, bottom plate 1 and side plates of the nacelle cover of the wind turbine generator set, the top cover plate mold, the bottom plate mold and the side plate mold are assembled into corresponding molds;

[0048] S02: Apply wax to the assembly gaps of the top cover plate mold, the bottom plate mold and the side plate mold to seal the gaps;

[0049] S03: Use the top cover plate mold, the bottom plate mold and the side plate mold for vacuum infusion;

[0050] S04: After curing, the finished products of the top cover plate, the bottom plate 1 and the side plate are obtained;

[0051] S05: Assemble the finished products into a wind turbine nacelle cover and connect them with bolts at adjacent flanges.

[0052] Apply wax to the gaps to prevent the joints from affecting the quality of the finished product.

[0053] Wherein, S01 includes the following steps:

[0054] S011: According to the sizes of the top cover plate, bottom plate 1 and side plates of the nacelle cover of the wind turbine generator set, the modules are divided in combination with the sizes of the central sub-mold block 1 8, the top corner sub-mold block 1 5, the side sub-mold block 1 6, the front top corner sub-mold block 9, the rear top corner sub-mold block 11, the central sub-mold block 3 13, the side sub-mold block 2 10, the flanging sub-mold block 3 12, the top corner sub-mold block 2 2, the central sub-mold block 2 4 and the flanging sub-mold block 2 3;

[0055] S012: When the sizes of the existing center sub-mold block 18, top corner sub-mold block 15, side sub-mold block 16, front top corner sub-mold block 9, rear top corner sub-mold block 11, center sub-mold block 3 13, side sub-mold block 2 10, flanging sub-mold block 3 12, top corner sub-mold block 2 2, center sub-mold block 2 4 and flanging sub-mold block 2 3 meet the size requirements of the top cover panel, bottom panel 1 and side panel, they are spliced ​​into corresponding top cover panel molds, bottom panel molds and side panel molds; otherwise, the required non-universal molds are manufactured according to the missing parts of the spliced ​​top cover panel molds, bottom panel molds and side panel molds, and then the corresponding mold splicing is performed.

[0056] By manufacturing non-universal molds, it is ensured that various molds can be spliced ​​into required molds to meet the requirements of wind turbine nacelles of various sizes and specifications.

[0057] Among them, in S012, when assembling the corresponding mold, firstly, each sub-mold block is inserted into the bottom plate 1, and after the assembly and molding, the electromagnet 18 at the corresponding position is energized to achieve firm attraction.

[0058] From the above specific implementations, it can be seen that the present invention has the following beneficial effects:

[0059] 1. By disassembling the top cover plate mold, the bottom plate mold and the side plate mold into a plurality of sub-molds and the corresponding sub-molds have different sizes and specifications, they can be assembled according to the design sizes of the top cover plate, the bottom cover plate and the side plate, so as to realize the sub-molds of the common parts of the nacelles of units with different specifications, and the bottom plate 1 can be reused, thereby reducing the production cost of the mold and facilitating the updating and iteration of the nacelle cover of the wind turbine generator set;

[0060] 2. By setting one of the central sub-mold blocks 1 8, the central sub-mold block 3 13 and the central sub-mold block 2 4 to be square, the length or width dimensions can be changed by changing the placement positions of other types of sub-mold blocks, thereby reducing the types of molds and facilitating manufacturing and management;

[0061] 3. By using the mounting protrusions 17 and the mounting grooves 14 to cooperate, it is possible to facilitate the disassembly and assembly of each sub-mold on the bottom plate 1, and ensure that each sub-mold block does not shift;

[0062] 4. The suction force of the electromagnet 18 ensures that each submodule is firmly positioned without displacement, thereby ensuring the manufacturing accuracy of each board;

[0063] 5. By manufacturing non-universal molds, it is ensured that various molds can be spliced ​​into required molds to meet the requirements of wind turbine nacelles of various sizes and specifications.

[0064] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for producing a nacelle cover of a wind turbine generator set, characterized in that: A mold assembly for a nacelle cover of a wind turbine generator set is used. The mold assembly for the nacelle cover of the wind turbine generator set comprises a top cover plate mold, a bottom plate mold and a side plate mold. The top cover plate mold and the bottom plate mold each comprise a front section mold and a rear section mold. The front section mold comprises a top corner sub-mold block 1 (5), a center sub-mold block 1 (8), a side sub-mold block 1 (6) and a flanging sub-mold block 1 (7). The rear section mold comprises a front top corner sub-mold block (9), a rear top corner sub-mold block (11), a center sub-mold block 3 (13), a side sub-mold block 2 (10) and a flanging sub-mold block 3 (12). The side plate mold comprises a top corner sub-mold block 2 (2), a center sub-mold block 2 (4) and a flanging sub-mold block 2 (3). At least four side sub-mold blocks 1 (6) and four flanging sub-mold blocks 2 (3) are provided. At least three edge mold blocks 2 (10) are provided, and the central mold block 1 (8), the central mold block 2 (4), the central mold block 3 (13), the edge mold block 1 (6), the edge mold block 2 (10), the flanging mold block 1 (7), the flanging mold block 2 (3), and the flanging mold block 3 (12) all include at least two sizes and specifications, and also include a bottom plate (1), the central mold block 1 (8), the top corner mold block 1 (5), the edge mold block 1 (6), the front top corner mold block (9), the rear top corner mold block (11), the central mold block 3 (13), the edge mold block 2 (10), the flanging mold block 3 (12), the top corner mold block 2 (2), the central mold block 2 (4) and the flanging mold block 2 (3) are all detachably mounted on the bottom plate (1); The top corner mold block 1 (5) and the front top corner mold block (9) have the same structure; The edge mold block 1 (6) and the edge mold block 2 (10) have the same structure; The structures of the flanging sub-mold block 1 (7), the flanging sub-mold block 2 (3) and the flanging sub-mold block 3 (12) are the same; One of the dimensions of the central sub-mold block 1 (8), the central sub-mold block 2 (4) and the central sub-mold block 3 (13) is a square structure; The top corner sub-mold block 1 (5) and the front top corner sub-mold block (9) both include a main board 1 (23), a side board 1 (21) and a flap 1 (24) are adjacently arranged on the main board 1 (23), the height of the side board 1 (21) is greater than the height of the flap 1 (24), the side board 1 (21) and the flap 1 (24) are both perpendicular to the main board 1 (23), a transition arc is arranged at the connection between the side board 1 (21) and the main board 1 (23), a flap 2 (22) is vertically arranged on the side board 1 (21), and the flap 2 (22) is vertically connected to the flap 1 (24); The side mold block 1 (6) and the side mold block 2 (10) both include a main board 2 (30), a side plate 2 (29) is arranged on one side of the main board 2 (30), the side plate 2 (29) is perpendicular to the main board 2 (30), the height of the side plate 2 (29) is the same as the height of the side plate 1 (21), a transition arc is arranged at the connection between the side plate 2 (29) and the main board 2 (30), and the heights of the side plates 2 (29) of the side mold blocks 1 (6) or the side mold blocks 2 (10) of different sizes are the same; The flanging sub-mold block one (7), the flanging sub-mold block two (3) and the flanging sub-mold block three (12) all include a main board three (28), on which a flap three (27) is vertically arranged, and the height of the flap three (27) is the same as the height of the flap one (24). The heights of the flap three (27) of the flanging sub-mold blocks one (7), the flanging sub-mold block two (3) or the flanging sub-mold block three (12) of different sizes are the same; The rear top corner mold block (11) comprises a main plate four (35), on which a side plate three (33) and a side plate four (34) are adjacently arranged, the side plate three (33) and the main plate four (35) are transitionally connected, and the side plate three (33), the side plate four (34) and the side plate two (29) are all of the same height; The top corner sub-mold block 2 (2) comprises a main board 5 (26), on which two flaps 4 (25) are adjacently arranged, the flaps 4 (25) being perpendicular to the main board 5 (26), and the height of the flaps 4 (25) being the same as the height of the flap 1 (24); The following steps are involved: S01: According to the sizes of the top cover plate, bottom plate and side plate of the nacelle cover of the wind turbine generator set, the top cover plate mold, the bottom plate mold and the side plate mold are assembled into corresponding molds; S02: Apply wax to the assembly gaps of the top cover plate mold, the bottom plate mold and the side plate mold to seal the gaps; S03: Use the top cover plate mold, the bottom plate mold and the side plate mold for vacuum infusion; S04: After curing, the finished products of the top cover plate, the bottom plate and the side plate are obtained; S05: Assemble the finished products into a wind turbine nacelle cover.

2. The method for producing a nacelle cover of a wind turbine generator set according to claim 1, characterized in that: The mounting surfaces of the central sub-mold block 1 (8), the top corner sub-mold block 1 (5), the side sub-mold block 1 (6), the front top corner sub-mold block (9), the rear top corner sub-mold block (11), the central sub-mold block 3 (13), the side sub-mold block 2 (10), the flanging sub-mold block 3 (12), the top corner sub-mold block 2 (2), the central sub-mold block 2 (4) and the flanging sub-mold block 2 (3) are all provided with iron sheets (15) and a plurality of mounting grooves (14); a plurality of mounting protrusions (17) are provided on the bottom plate (1), each mounting protrusion (17) can be extended into a corresponding mounting groove (14); and an electromagnet (18) is provided on the bottom plate (1).

3. The method for producing a nacelle cover of a wind turbine generator set according to claim 2, characterized in that: S01 includes the following steps: S011: According to the sizes of the top cover plate, bottom plate and side plate of the nacelle cover of the wind turbine generator set, the modules are divided in combination with the sizes of the central sub-mold block 1, the top corner sub-mold block 1, the side sub-mold block 1, the front top corner sub-mold block, the rear top corner sub-mold block, the central sub-mold block 3, the side sub-mold block 2, the flanging sub-mold block 3, the top corner sub-mold block 2, the central sub-mold block 2 and the flanging sub-mold block 2; S012: When the sizes of the existing center sub-mold block 1, top corner sub-mold block 1, side sub-mold block 1, front top corner sub-mold block, rear top corner sub-mold block, center sub-mold block 3, side sub-mold block 2, flanging sub-mold block 3, top corner sub-mold block 2, center sub-mold block 2 and flanging sub-mold block 2 meet the size requirements of the top cover panel, bottom panel and side panel, they are spliced ​​into corresponding top cover panel molds, bottom panel molds and side panel molds; otherwise, the required non-universal molds are manufactured according to the missing parts of the spliced ​​top cover panel molds, bottom panel molds and side panel molds, and then the corresponding mold splicing is performed.

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