A composite material wind turbine blade root forming method

Abstract

The present invention relates to the technical field of blade root processing, and in particular, to a composite material wind turbine blade root molding method. The method comprises the following steps: S1, laying an outer layer of glass fiber cloth and an inner layer of glass fiber cloth on the inner surface of a mold in sequence, laying a porous film on the inner layer of glass fiber cloth, and laying a guide net on the porous film; S2, pre-embedding a bolt sleeve between the outer layer of glass fiber cloth and the inner layer of glass fiber cloth; S3, laying a flow channel on the guide net, covering the laid flow channel with a vacuum film, and injecting glue through the flow channel; in the composite material wind turbine blade root molding method, by setting a bolt sleeve carrier to be movable, and setting the bolt sleeve carrier on a semicircular conveyor belt, so that the shape of multiple bolt sleeve carriers after movement corresponds to the shape of the blade root, and cooperating with a blocking member to control the conveyor belt to rotate equidistantly, so that the staff only needs to be in a fixed position to realize the pre-embedding of multiple bolt sleeve carriers.

Description

Technical Field

[0001] The invention relates to the technical field of blade root processing, and in particular to a method for molding the root of a composite material wind turbine blade. Background Art

[0002] Blade quality is crucial to the reliability of wind turbine operation, and the root area of ​​the blade bears the load transmitted by the entire blade. To ensure reliability and durability, the root of the blade needs to use a larger number of fiber-reinforced fabrics (for example, glass fiber reinforced fabrics or carbon fiber reinforced fabrics).

[0003] Since there are many fiber-reinforced fabric layers at the root of the blade and the fiber-reinforced fabric has a certain degree of softness, it is easy to cause deformation and wrinkles in the root layer of the blade when laying the fiber-reinforced fabric. The existence of deformation and wrinkles will reduce the load-bearing capacity of the fiber-reinforced fabric, causing quality risks to the operation of the blade, and therefore it is a serious quality defect, and may even cause the entire blade to be scrapped.

[0004] The blade root prefabrication process is a new process that can greatly improve production efficiency, eliminate blade root wrinkle defects, and reduce the occupancy time of the main mold. It has now become a trend in blade production.

[0005] In the process of prefabrication of blade roots, pre-embedded bolts are an essential step. The traditional pre-embedded method uses an equidistant mold with through holes in it, and the bolts are inserted into the corresponding through holes. However, when facing some large blade roots, the traditional method will encounter great difficulties in the process of pre-embedded bolts. Due to the large size of this type of blade root, workers need to constantly move their positions during the process of pre-embedded bolts, which not only affects the work of surrounding personnel, but also causes excessive physical exertion of workers. Summary of the invention

[0006] The object of the present invention is to provide a composite material wind turbine blade root molding method to solve the problems raised in the above background technology.

[0007] In order to achieve the above-mentioned object, a composite material wind turbine blade root molding method is provided, comprising the following method steps:

[0008] S1. Laying an outer layer of glass fiber cloth and an inner layer of glass fiber cloth on the inner surface of the mold in sequence, laying a porous membrane on the inner layer of glass fiber cloth, and laying a guide net on the porous membrane;

[0009] S2. Embed bolt sleeves between the outer layer of glass fiber cloth and the inner layer of glass fiber cloth;

[0010] S3, laying a flow channel on the guide net, covering the laid flow channel with a vacuum film, and injecting glue through the flow channel;

[0011] The mold is a semicircular tubular structure; the bolt sleeve is embedded by an adjustable embedded part, and the adjustable embedded part is arranged at one end of the mold, wherein:

[0012] The adjustable embedded parts include guide rails, bolt sleeve carriers, and a rotatable conveyor belt;

[0013] The guide rail limits the shape of the conveyor belt to be consistent with the shape formed after the multiple bolt sleeves are pre-buried; a blocking member is also arranged in the guide rail, and the blocking member is used to control the single rotation distance of the conveyor belt so that the single rotation distance of the conveyor belt is consistent with the spacing between the multiple bolt sleeve carriers;

[0014] There are multiple bolt sleeve carriers, and the multiple bolt sleeve carriers are equidistantly arranged on the surface of the conveyor belt;

[0015] Under normal circumstances, the bolt sleeve carrier is in an unloaded state. When the staff places the bolt sleeve into the bolt sleeve carrier, the conveyor belt drives the bolt sleeve carrier to rotate through the weight of the bolt sleeve, and under the restriction of the blocking member, the adjacent unloaded bolt sleeve carrier rotates to the position of the staff.

[0016] As a further improvement of the technical solution, the bolt sleeve carrier is a tubular structure whose outer ring is fixedly connected to the outer wall of the conveyor belt and whose inner ring diameter is consistent with the outer wall diameter of the bolt sleeve.

[0017] As a further improvement of the technical solution, the guide rail includes a shell fixedly arranged at one end of the mold in a detachable manner, the shape of the shell is a semicircle corresponding to the mold, and the structure is a "U"-shaped structure with an opening facing inward;

[0018] Rotating shafts are rotatably arranged at both ends of the shell, and the conveyor belt is sleeved on the outer ring of the rotating shafts.

[0019] As a further improvement of the present technical solution, the inner circle of the shell is bent on the outer wall of the conveyor belt, and guide strips located on the inner wall of the shell are fixedly arranged on both sides of the inner wall of the shell; the conveyor belt is limited to a semicircular shape by the bending of the inner circle of the shell and the limiting of the guide strips.

[0020] As a further improvement of the technical solution, the blocking member includes a wedge-shaped rod with one end located inside the conveyor belt, the other end of which slides through the conveyor belt and then slides into the bolt sleeve carrier, the end of the wedge-shaped rod located inside the conveyor belt forms an abutment end, and an inner concave rod is provided between the abutment end and the middle part of the wedge-shaped rod;

[0021] A return spring is provided between the part of the wedge-shaped rod located inside the conveyor belt and the inner wall of the conveyor belt to elastically connect the two.

[0022] The inclined surface of one end of the wedge-shaped rod penetrating into the bolt sleeve carrier is arranged to face away from the mold.

[0023] As a further improvement of the technical solution, the blocking member further comprises a stopper rod fixedly arranged at both ends of the inner wall of the shell, and a passage spacing is left between the two stopper rods, and the width of the passage spacing is smaller than the width of the abutting end and larger than the width of the inner concave rod;

[0024] The gear lever is arranged close to one end of the housing;

[0025] When the bolt sleeve squeezes the wedge-shaped rod out of the bolt sleeve carrier, the bolt sleeve carrier passes through the passage gap through the concave rod.

[0026] As a further improvement of the technical solution, the rotating shaft and the guide strip are both arranged on both sides of the shell, so that a gap for the abutting end to pass through is left between the two rotating shafts and between the two guide strips.

[0027] As a further improvement of the technical solution, the adjustable embedded part also includes a limit assembly, which includes a limit plate in a semicircular shape, and the limit plate is fixedly connected to the end of the shell through a connecting rod; a plurality of blocks are fixedly arranged at the outer ring of the limit plate corresponding to the position of the bolt sleeve carrier, and a card slot that is plugged and matched with the card block is arranged at the position of the outer ring of the bolt sleeve carrier corresponding to the card block;

[0028] The adjustable embedded part also includes an extrusion part, which is inserted into the shell to extrude the abutment end, so that the abutment end pushes the bolt sleeve carrier toward the limiting plate through the deformation force of the conveyor belt, and then the clamping block is clamped into the clamping slot to limit the bolt sleeve carrier.

[0029] As a further improvement of the technical solution, the extrusion portion includes a plug plate in a semicircular shape, and a convex block is provided on the inner circle of the plug plate. The convex block is narrow at one end close to the bolt sleeve carrier and wide at the other end, and the two ends are connected by a bevel transition;

[0030] One side of the shell is provided with an insertion hole for the insertion of the insertion plate and the protrusion.

[0031] As a further improvement of the technical solution, the bolt sleeve carrier includes an outer cylinder fixedly connected to the outer wall of the conveyor belt, and an inner cylinder arranged inside the outer cylinder, and the wedge rod slides into the outer cylinder and the inner cylinder;

[0032] The outer ring diameter of the inner cylinder is smaller than the inner ring diameter of the outer cylinder, so that an active cavity is formed between the outer cylinder and the inner cylinder, and a connecting spring is arranged in the active cavity, one end of which is connected to the outer ring of the inner cylinder and the other end is connected to the inner ring of the outer cylinder;

[0033] The inner diameter of the inner cylinder is consistent with the outer diameter of the bolt sleeve, and the clamping groove is arranged on the outer ring of the outer cylinder;

[0034] The end of the protrusion close to the bolt sleeve carrier is provided with multiple recesses, and a wave shape is formed between the multiple recesses; a protruding rod is provided at one end of the abutting end; the protruding rod is driven by the movement of the recess, so that the protruding rod drives the bolt sleeve in the inner tube to shake through the wedge rod, thereby changing the state of the bubbles around the bolt sleeve.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] 1. In the composite material wind turbine blade root forming method, by setting the bolt sleeve carrier to be movable and setting the bolt sleeve carrier on a semicircular conveyor belt, the shapes of the multiple bolt sleeve carriers after movement correspond to the shape of the blade root, and the blocking member is used to control the equidistant rotation of the conveyor belt, so that the staff only needs to be in a fixed position to realize the pre-embedding of multiple bolt sleeve carriers, which reduces the range of activities of the staff and reduces the labor intensity of the staff.

[0037] 2. In the composite material wind turbine blade root molding method, by inserting the plug plate into the shell to extrude the wedge rod, not only can the influence of the conveyor belt deformation on the bolt sleeve be overcome, but also the bolt sleeve can be shaken in the glue through the deformation of the conveyor belt, thereby using the shaking force to change the position of the bubble and improve the firmness of the connection between the bolt sleeve and the blade root. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0039] Figure 2 It is a structural schematic diagram of the bolt sleeve carrier of the present invention;

[0040] Figure 3 It is a structural schematic diagram of the housing of the present invention;

[0041] Figure 4 For the present invention Figure 3 A schematic diagram of the structure at A;

[0042] Figure 5 It is a structural schematic diagram of the conveyor belt of the present invention;

[0043] Figure 6 It is a structural schematic diagram of the gear lever of the present invention;

[0044] Figure 7 It is a schematic structural diagram of the wedge-shaped rod of the present invention;

[0045] Figure 8 It is a structural schematic diagram of the plug board of the present invention;

[0046] Fig. 9 For the present invention Figure 8A schematic diagram of the structure at B;

[0047] Fig.10 It is a structural schematic diagram of the limiting plate of the present invention;

[0048] Fig.11 For the present invention Fig.10 A schematic diagram of the structure at position C of FIG.

[0049] Fig.12 It is a structural schematic diagram of the convex rod of the present invention;

[0050] Fig.13 The structure of the inner cylinder of the present invention is schematically shown in FIG. Figure 1 ;

[0051] Fig.14 The structure of the inner cylinder of the present invention is schematically shown in FIG. Figure 2 .

[0052] The meaning of each number in the figure is:

[0053] 100, base; 101, mold; 102, escalator; 110, guide rail; 111, shell; 112, rotating shaft; 113, conveyor belt; 114, guide strip; 120, bolt sleeve carrier; 121, outer cylinder; 122, inner cylinder; 123, movable cavity; 124, connecting spring; 130, limit assembly; 131, plug plate; 132, convex block; 133, bevel edge; 134, recess; 135, plug hole; 136, limit plate; 137, connecting rod; 138, block; 139, slot; 140, wedge rod; 141, reset spring; 142, abutment end; 143, concave rod; 144, gear lever; 145, convex rod; 200, bolt sleeve. DETAILED DESCRIPTION

[0054] The following will be combined with the accompanying drawings in the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only 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 are within the scope of protection of the present invention.

[0055] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0056] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0057] The prefabricated blade root requires a mold 101 during the molding process. Figure 1 As shown, the mold 101 is a semicircular tubular structure, and a base 100 is provided at the bottom to support the mold 101. Since the height of the mold 101 can reach more than 5 meters, escalators 102 are also provided on both sides of the mold 101 to facilitate the construction work of the workers.

[0058] See also Figure 1 and Figure 2 As shown, a composite material wind turbine blade root molding method is provided, comprising the following method steps:

[0059] S1, laying an outer layer of glass fiber cloth and an inner layer of glass fiber cloth on the inner surface of the mold 101 in sequence, laying a porous membrane on the inner layer of glass fiber cloth, and laying a guide net on the porous membrane;

[0060] S2, embedding a bolt sleeve 200 between the outer layer of glass fiber cloth and the inner layer of glass fiber cloth;

[0061] S3. Lay a flow channel on the guide net, cover the laid flow channel with a vacuum film, and inject glue through the flow channel.

[0062] In the above, most of the methods for blade root molding adopt the existing technology, among which the pre-embedding of the bolt sleeve 200 is different from the existing technology. The pre-embedding of the bolt sleeve 200 in the present invention is achieved by an adjustable pre-embedded part. The adjustable pre-embedded part is arranged at one end of the mold 101, and is used to pre-embed the bolt sleeve 200 at one end of the blade root.

[0063] Specifically, the adjustable embedded parts include a guide rail 110, a bolt sleeve carrier 120, and a rotatable conveyor belt 113. The guide rail 110 limits the shape of the conveyor belt 113 to be consistent with the shape formed after the multiple bolt sleeves 200 are embedded (i.e., a semicircle); multiple bolt sleeve carriers 120 are provided, and the multiple bolt sleeve carriers 120 are equidistantly arranged on the surface of the conveyor belt 113; a blocking member is also provided in the guide rail 110, and the blocking member is used to control the single rotation distance of the conveyor belt 113, so that the single rotation distance of the conveyor belt 113 is consistent with the spacing between the multiple bolt sleeve carriers 120. Under normal conditions, the bolt sleeve carrier 120 is in an unloaded state (i.e., the bolt sleeve 200 is not loaded). When the staff puts the bolt sleeve 200 into the bolt sleeve carrier 120, the conveyor belt 113 drives the bolt sleeve carrier 120 to rotate through the weight of the bolt sleeve 200, and under the restriction of the blocking member, the adjacent unloaded bolt sleeve carrier 120 is rotated to the position of the staff.

[0064] In the above description, the bolt sleeve carrier 120 is a tubular structure whose outer ring is fixedly connected to the outer wall of the conveyor belt 113 and whose inner ring diameter is consistent with the outer wall diameter of the bolt sleeve 200 .

[0065] Specifically, Figure 5 As shown, the guide rail 110 includes a housing 111, which is detachably fixed at one end of the mold 101. The shape of the housing 111 is a semicircular shape corresponding to the mold 101, and the structure is a "U"-shaped structure with an opening facing inward, so as to facilitate limiting the shape of the conveyor belt 113. Figure 3 and Figure 4 In the embodiment, the two ends of the housing 111 are rotatably provided with a rotating shaft 112, and the conveyor belt 113 is sleeved on the outer ring of the rotating shaft 112. In addition, two rotating shafts 112 are preferably provided at each end, that is, Figure 3 The number of the rotating shafts 112 is the same, and a distance is set between the two rotating shafts 112, so that the distance between the inner circle and the outer circle of the conveyor belt 113 can be increased to facilitate the movement of the blocking member to be described in detail below.

[0066] exist Figure 5 In the embodiment, the inner ring of the housing 111 is bent on the outer wall of the conveyor belt 113. Figure 4 and Figure 6 In the embodiment, guide strips 114 are fixedly arranged on both sides of the inner wall of the shell 111. In this way, the conveyor belt 113 can be limited to a semicircular shape (shape reference 114) by bending the inner circle of the shell 111 and limiting the guide strips 114. Figure 3 ).

[0067] Figure 4 and Figure 7The specific structure of the blocking member is shown. As shown in the figure, the blocking member includes a wedge rod 140 with one end located inside the conveyor belt 113, and the other end slides through the conveyor belt 113 and then slides into the bolt sleeve carrier 120. The end of the wedge rod 140 located inside the conveyor belt 113 forms an abutment end 142, and an indented rod 143 is arranged between the abutment end 142 and the middle part of the wedge rod 140, and a return spring 141 is arranged between the part of the wedge rod 140 located inside the conveyor belt 113 and the inner wall of the conveyor belt 113 to elastically connect the two. Among them, the inclined surface of the end of the wedge rod 140 that penetrates into the bolt sleeve carrier 120 is arranged to face away from the mold 101. In this way, when the staff inserts the bolt sleeve 200 into the bolt sleeve carrier 120, the inclined surface at the end of the wedge rod 140 is opposite to the bolt sleeve 200, and the bolt sleeve 200 can squeeze the wedge rod 140 out of the bolt sleeve carrier 120 through the inclined surface.

[0068] The blocking member also includes a stopper rod 144 fixedly disposed at both ends of the inner wall of the housing 111. Figure 6 As shown, a clearance is left between the two stoppers 144, the width of which is smaller than the width of the abutment end 142 and larger than the width of the inner concave rod 143. When the bolt sleeve 200 squeezes the wedge rod 140 into the bolt sleeve carrier 120, the bolt sleeve carrier 120 passes through the clearance through the inner concave rod 143.

[0069] The shift rod 144 is disposed close to one end of the housing 111 .

[0070] Continue to refer Figure 6 The rotating shaft 112 and the guide bar 114 are both arranged on both sides of the housing 111, so that a gap for the abutting end 142 to pass through is left between the two rotating shafts 112 and the two guide bars 114. The width of the gap is greater than the width of the abutting end 142, so during the rotation of the limiting assembly 130, the abutting end 142 will not contact the rotating shaft 112 and the guide bar 114.

[0071] The conveyor belt 113 is usually made of rubber, plastic or other materials, so the conveyor belt 113 itself has a certain deformation force. However, such deformation force will affect the accuracy of the bolt sleeve 200 during the process of pre-embedding the bolt sleeve 200. For this reason, the adjustable embedded part also includes a limit assembly 130. Figure 8-Figure 11 As shown, the limiting assembly 130 includes a limiting plate 136 in a semicircular shape, and the limiting plate 136 is fixedly connected to the end of the housing 111 through a connecting rod 137. A plurality of clamping blocks 138 are fixedly arranged at the outer ring of the limiting plate 136 corresponding to the position of the bolt sleeve carrier 120, and a clamping groove 139 for plugging and matching with the clamping block 138 is arranged at the position of the outer ring of the bolt sleeve carrier 120 corresponding to the clamping block 138.

[0072] The adjustable embedded part also includes an extrusion part, which is inserted into the housing 111 to squeeze the abutment end 142, so that the abutment end 142 pushes the bolt sleeve carrier 120 toward the limiting plate 136 through the deformation force of the conveyor belt 113, so that the clamping block 138 is clamped into the clamping groove 139 to limit the bolt sleeve carrier 120. Figure 8 and Fig. 9 As shown, the extrusion portion includes a semicircular plug plate 131, and a protrusion 132 is provided on the inner circle of the plug plate 131. The protrusion 132 is narrow at one end close to the bolt sleeve carrier 120 and wide at the other end, and the two ends are transitionally connected by a bevel 133. A plug hole 135 for the plug plate 131 and the protrusion 132 to penetrate is opened on one side of the housing 111.

[0073] Working principle:

[0074] First, the initial positions of multiple bolt sleeve carriers 120 are all located inside the shell 111. Then, the conveyor belt 113 is driven to rotate, so that the conveyor belt 113 drives the first bolt sleeve carrier 120 to move toward the stop rod 144. When the abutment end 142 moves to the top of the stop rod 144, since the width of the abutment end 142 is greater than the passage distance between the two abutment ends 142, the stop rod 144 blocks the abutment end 142. At this time, the conveyor belt 113 and the bolt sleeve carrier 120 cannot continue to rotate. When the staff inserts the bolt sleeve 200 into the bolt sleeve carrier 120, the bolt sleeve 200 squeezes the inclined surface of the end of the wedge rod 140 to make the wedge rod 140 detach from the bolt sleeve carrier 120. At this time, the wedge rod 140 drives the concave rod 143 and the abutment end 142 to move, so that the concave rod 143 moves to the top of the stop rod 144. At this time, since the width of the concave rod 143 is smaller than the passage spacing between the two abutment ends 142, the concave rod 143 can use the gravity of the bolt sleeve 200 to pass through the passage spacing. At this time, the bolt sleeve carrier 120 loaded with the bolt sleeve 200 drives the conveyor belt 113 to rotate through the gravity of the bolt sleeve 200, so that the next bolt sleeve carrier 120 not loaded with the bolt sleeve 200 rotates to the stop rod 144, and the stop rod 144 blocks the bolt sleeve carrier 120, thereby realizing the equidistant rotation of the conveyor belt 113, so that each bolt sleeve carrier 120 will stay at the staff. Finally, the insert plate 131 is inserted into the shell 111 (it can be driven manually or by a hydraulic rod), so that the bevel 133 abuts against the abutment end 142, forcing the abutment end 142 to drive the wedge rod 140 to move. The wedge rod 140 moves through the bolt sleeve 200 to push the bolt sleeve carrier 120, so that the bolt sleeve 200 uses the deformation force of the conveyor belt 113 to move toward the limit plate 136, and the bolt sleeve carrier 120 is limited by the slot 139 and the block 138.

[0075] That is to say, by setting the bolt sleeve carrier 120 to be movable and setting the bolt sleeve carrier 120 on the semicircular conveyor belt 113, the shapes of the multiple bolt sleeve carriers 120 after movement correspond to the shape of the blade root, and the blocking member is used to control the equidistant rotation of the conveyor belt 113, so that the staff only needs to be in a fixed position to achieve the pre-embedding of the multiple bolt sleeve carriers 120, which reduces the staff's range of activities and reduces the staff's labor intensity.

[0076] Moreover, if bubbles are generated around the bolt sleeve 200 during the glue injection process, the contact area between the bolt sleeve 200 and the glue will be reduced, thereby affecting the firmness of the connection between the bolt sleeve 200 and the blade root. Fig.13 and Fig.14 In the illustrated embodiment, the bolt sleeve carrier 120 includes an outer cylinder 121 fixedly connected to the outer wall of the conveyor belt 113, and an inner cylinder 122 disposed inside the outer cylinder 121, and a wedge rod 140 slides into the outer cylinder 121 and the inner cylinder 122. The outer ring diameter of the inner cylinder 122 is smaller than the inner ring diameter of the outer cylinder 121, so that an active cavity 123 is formed between the outer cylinder 121 and the inner cylinder 122, and a connecting spring 124 is disposed in the active cavity 123, one end of which is connected to the outer ring of the inner cylinder 122 and the other end is connected to the inner ring of the outer cylinder 121. Among them, the inner ring diameter of the inner cylinder 122 is consistent with the outer ring of the bolt sleeve 200, and the clamping groove 139 is disposed on the outer ring of the outer cylinder 121. In addition, both ends of the inner cylinder 122 are bent toward the outer cylinder 121 to prevent the inner cylinder 122 from moving toward the mold 101.

[0077] like Fig. 9 As shown, a plurality of recesses 134 are provided at one end of the protrusion 132 close to the bolt sleeve carrier 120, and a wave shape is formed between the plurality of recesses 134; a protrusion rod 145 is provided at one end of the abutting end 142. The protrusion rod 145 is driven by the movement of the recess 134, so that the protrusion rod 145 drives the bolt sleeve 200 in the inner cylinder 122 to shake through the wedge rod 140, thereby changing the state of the bubbles around the bolt sleeve 200.

[0078] Combination Fig.12 , the working principle of this embodiment is as follows:

[0079] When the plug plate 131 drives the protrusion 132 to move into the housing 111, the multiple recesses 134 first contact the protrusion rod 145. Since the multiple recesses 134 form a wave shape, the protrusion rod 145 will reciprocate through the return spring 141, and the return spring 141 drives the wedge rod 140 to reciprocate. When the wedge rod 140 moves into the inner cylinder 122, the wedge rod 140 pushes the inner cylinder 122 through the bolt sleeve 200, so that the inner cylinder 122 moves in the movable chamber 123. When the wedge rod 140 is reset, the inner cylinder 122 is reset through the connecting spring 124, so that the inner cylinder 122 can drive the bolt sleeve 200 to shake. When the bolt sleeve 200 shakes, the bubbles around the bolt sleeve 200 change their positions or even disappear under the action of shaking.

[0080] The shaking time of the bolt sleeve 200 can be increased by driving the inserting plate 131 to reciprocate.

[0081] In summary, by inserting the insert plate 131 into the shell 111 to squeeze the wedge rod 140, not only can the influence of the deformation of the conveyor belt 113 on the bolt sleeve 200 be overcome, but the deformation of the conveyor belt 113 can also make the bolt sleeve 200 shake in the glue, thereby using the shaking force to change the position of the bubble and improve the firmness of the connection between the bolt sleeve 200 and the blade root.

[0082] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the present invention and are not intended to limit the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A composite material wind turbine blade root molding method, characterized in that: The method comprises the following steps: S1, laying an outer layer of glass fiber cloth and an inner layer of glass fiber cloth on the inner surface of the mold (101) in sequence, laying a porous membrane on the inner layer of glass fiber cloth, and laying a guide net on the porous membrane; S2, embedding a bolt sleeve (200) between the outer layer of glass fiber cloth and the inner layer of glass fiber cloth; S3, laying a flow channel on the guide net, covering the laid flow channel with a vacuum film, and injecting glue through the flow channel; The mold (101) is a semicircular tubular structure; the bolt sleeve (200) is embedded by an adjustable embedded part, and the adjustable embedded part is arranged at one end of the mold (101), wherein: The adjustable embedded part comprises a guide rail (110), a bolt sleeve carrier (120), and a rotatable conveyor belt (113); The guide rail (110) limits the shape of the conveyor belt (113) to be consistent with the shape formed after the plurality of bolt sleeves (200) are pre-buried; a blocking member is also provided in the guide rail (110), and the blocking member is used to control the single rotation distance of the conveyor belt (113) so that the single rotation distance of the conveyor belt (113) is consistent with the spacing between the plurality of bolt sleeve carriers (120); A plurality of bolt sleeve carriers (120) are provided, and the plurality of bolt sleeve carriers (120) are equidistantly arranged on the surface of the conveyor belt (113); Under normal conditions, the bolt sleeve carrier (120) is in an unloaded state. When a worker places a bolt sleeve (200) into the bolt sleeve carrier (120), the conveyor belt (113) drives the bolt sleeve carrier (120) to rotate through the weight of the bolt sleeve (200), and under the restriction of the blocking member, the adjacent unloaded bolt sleeve carrier (120) is rotated to the position of the worker.

2. The composite material wind turbine blade root forming method according to claim 1, characterized in that: The bolt sleeve carrier (120) is a tubular structure whose outer ring is fixedly connected to the outer wall of the conveyor belt (113) and whose inner ring diameter is consistent with the outer wall diameter of the bolt sleeve (200).

3. The composite material wind turbine blade root forming method according to claim 1, characterized in that: The guide rail (110) comprises a shell (111) fixedly arranged at one end of the mold (101) in a detachable manner; the shell (111) is in a semicircular shape corresponding to the mold (101) and is in a "U"-shaped structure with an opening facing inwards; Rotating shafts (112) are rotatably provided at both ends of the housing (111), and the conveyor belt (113) is sleeved on the outer ring of the rotating shaft (112).

4. The composite material wind turbine blade root forming method according to claim 3, characterized in that: The inner ring of the shell (111) is bent on the outer wall of the conveyor belt (113), and guide strips (114) located on the inner wall of the shell (111) are fixedly provided on both sides of the inner wall of the shell (111); the conveyor belt (113) is restricted to a semicircular shape by the bending of the inner ring of the shell (111) and the limiting of the guide strips (114).

5. The composite material wind turbine blade root forming method according to claim 3, characterized in that: The blocking member comprises a wedge-shaped rod (140) with one end located inside the conveyor belt (113) and the other end slidingly passing through the conveyor belt (113) and then slidingly passing into the bolt sleeve carrier (120); the end of the wedge-shaped rod (140) located inside the conveyor belt (113) forms an abutment end (142), and an inner concave rod (143) is provided between the abutment end (142) and the middle of the wedge-shaped rod (140); A return spring (141) is provided between the portion of the wedge-shaped rod (140) located inside the conveyor belt (113) and the inner wall of the conveyor belt (113) to elastically connect the two. The inclined surface of one end of the wedge-shaped rod (140) that penetrates into the bolt sleeve carrier (120) is arranged to face away from the mold (101).

6. The composite material wind turbine blade root forming method according to claim 5, characterized in that: The blocking member further comprises blocking rods (144) fixedly arranged at both ends of the inner wall of the housing (111), a clearance distance being left between the two blocking rods (144), the width of the clearance distance being smaller than the width of the abutting end (142) and larger than the width of the inner concave rod (143); The shift rod (144) is disposed close to one end of the housing (111); When the bolt sleeve (200) squeezes the wedge-shaped rod (140) into the bolt sleeve carrier (120), the bolt sleeve carrier (120) passes through the passage gap via the concave rod (143).

7. The composite material wind turbine blade root forming method according to claim 5, characterized in that: The rotating shaft (112) and the guide strip (114) are both arranged on both sides of the housing (111), so that a gap for the abutment end (142) to pass through is left between the two rotating shafts (112) and between the two guide strips (114).

8. The composite material wind turbine blade root forming method according to claim 5, characterized in that: The adjustable embedded part further comprises a limit assembly (130), the limit assembly (130) comprising a limit plate (136) in a semicircular shape, the limit plate (136) being fixedly connected to the end of the housing (111) via a connecting rod (137); a plurality of clamping blocks (138) are fixedly provided on the outer ring of the limit plate (136) at positions corresponding to the bolt sleeve carrier (120), and a clamping groove (139) for plugging and cooperating with the clamping block (138) is provided on the outer ring of the bolt sleeve carrier (120) at positions corresponding to the clamping blocks (138); The adjustable embedded part further comprises an extrusion portion, which is inserted into the housing (111) to extrude the abutment end (142), so that the abutment end (142) pushes the bolt sleeve carrier (120) toward the limiting plate (136) through the deformation force of the conveyor belt (113), thereby causing the clamping block (138) to be clamped into the clamping groove (139) to limit the bolt sleeve carrier (120).

9. The composite material wind turbine blade root forming method according to claim 8, characterized in that: The extrusion portion comprises a semicircular plug plate (131), the inner ring of the plug plate (131) is provided with a protrusion (132), the protrusion (132) is narrow at one end close to the bolt sleeve carrier (120) and wide at the other end, and the two ends are transitionally connected by a bevel (133); One side of the housing (111) is provided with an insertion hole (135) for the insertion of the insertion plate (131) and the protrusion (132).

10. The composite material wind turbine blade root molding method according to claim 9, characterized in that: The bolt sleeve carrier (120) comprises an outer cylinder (121) fixedly connected to the outer wall of the conveyor belt (113), and an inner cylinder (122) arranged inside the outer cylinder (121), and the wedge rod (140) slides into the outer cylinder (121) and the inner cylinder (122); The outer ring diameter of the inner cylinder (122) is smaller than the inner ring diameter of the outer cylinder (121), so that an active cavity (123) is formed between the outer cylinder (121) and the inner cylinder (122), and a connecting spring (124) is provided in the active cavity (123), one end of the connecting spring being connected to the outer ring of the inner cylinder (122) and the other end of the connecting spring being connected to the inner ring of the outer cylinder (121); The inner ring diameter of the inner cylinder (122) is consistent with the outer ring diameter of the bolt sleeve (200), and the clamping groove (139) is arranged on the outer ring of the outer cylinder (121); A plurality of recesses (134) are provided at one end of the protrusion (132) close to the bolt sleeve carrier (120), and a wave shape is formed between the plurality of recesses (134); a protruding rod (145) is provided at one end of the abutting end (142); the protruding rod (145) is driven by the movement of the recess (134), so that the protruding rod (145) drives the bolt sleeve (200) in the inner cylinder (122) to shake through the wedge rod (140), thereby changing the state of bubbles around the bolt sleeve (200).

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