Forming method of heavy-load hydrofoil plate

Abstract

The invention belongs to the technical field of heavy-load type hydrofoil ships, and discloses a forming method of a heavy-load type hydrofoil plate. Before stacking, more than one hundred layers of bearing webs and fiber reinforced fabrics are cut into different sizes which are consistent in length and gradually changed in width from small to large, and a plurality of positioning holes are formed, so that accurate alignment of each layer is ensured; a fusiform stacking structure is formed by carrying out stacking operation on the stacking tool, stacking, positioning and combination can be rapidly and accurately carried out, and the labor cost is saved; the lacing piece surrounds the laminated structure and applies pre-tightening force, so that the whole laminated structure is kept integral during hoisting and overturning; according to the method, the profile-followed mold and the vacuum infusion process are utilized, so that the final wing-shaped curved surface of the hydrofoil plate is more accurate, and the vacuum infusion process can improve the compactness of a material, so that the strength, rigidity and durability of the hydrofoil plate are improved; the formed stacked structure is subjected to milling treatment, and the milling amount can be effectively reduced through the fusiform structure formed by stacking in advance.

Description

Technical Field

[0001] The invention relates to the technical field of heavy-load hydrofoil ships, and in particular to a molding method of a heavy-load hydrofoil plate. Background Art

[0002] A hydrofoil is a vessel that uses underwater hydrofoils (similar to the structure of airplane wings) to generate lift when sailing at high speeds, partially or completely lifting the hull off the water surface to reduce water resistance, increase speed and fuel efficiency. Hydrofoils can be divided into light-load hydrofoils (carrying range ≤ 50 tons), medium-load hydrofoils (carrying range 50-200 tons) and heavy-load hydrofoils (carrying range > 200 tons) according to their carrying weight. In heavy-load hydrofoils, hydrofoils are mainly used to provide lift, reduce resistance, increase speed and stability. Compared with light-load or medium-load hydrofoils, they need to have large carrying capacity, high strength and rigidity, and larger size.

[0003] At present, carbon fiber composite materials have excellent properties such as fatigue resistance, high specific strength, high specific modulus, and corrosion resistance, and are suitable for making heavy-duty hydrofoil panels. Heavy-duty hydrofoil panels are usually composed of more than 100 layers of ultra-thick plates. The main molding methods include pultrusion, co-extrusion, and pultruded plate bonding + CNC machining. The pultrusion process is suitable for longer, regular-section hydrofoil panels, but it is difficult to manufacture large-size, high-strength complex structures; the co-extrusion process uses multiple extruders to extrude different materials through a die at the same time to form a product with a multi-layer structure or composite material, but the equipment investment is large, the payback period is long, the technical difficulty is high, and the quality stability and process stability are insufficient; the pultruded plate bonding + CNC machining process is suitable for 100-layer bonding, but it is necessary to bond multiple pultruded plates layer by layer, the bonding fixture is complex, the processing cost is high, and the milling time is long.

[0004] Therefore, there is an urgent need for a method for forming a heavy-duty hydrofoil plate to solve the above problems. Summary of the invention

[0005] The object of the present invention is to provide a forming method of a heavy-loaded hydrofoil plate, which can realize the rapid stacking, combination, positioning, fastening and transfer of ultra-thick plates of hundreds of layers, and can ensure that the deformation of the stacked plates after transfer is small, simplify the operation process, and improve assembly efficiency; at the same time, the processing equipment used in this method is simple and easy to obtain, and the investment cost is low; the heavy-loaded hydrofoil plate after injection molding can effectively reduce the amount of milling, improve work efficiency, and has the characteristics of large load-bearing capacity, light weight and strong corrosion resistance.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A method for forming a heavy-duty hydrofoil plate, wherein the heavy-duty hydrofoil plate comprises more than 100 layers of load-bearing webs and fiber-reinforced fabrics, and the method for forming the heavy-duty hydrofoil plate comprises the following steps:

[0008] S1: Cutting the load-bearing webs and the fiber-reinforced fabrics to form different sizes with the same length and gradually changing width from small to large according to design requirements, and each of the load-bearing webs and each of the fiber-reinforced fabrics is provided with at least three positioning holes evenly spaced along the length direction thereof;

[0009] S2: Perform stacking operation on a stacking tool, the stacking tool includes a stacking platform, at least three support frames and at least three support rods, at least three support frames are fixedly installed on the stacking platform along the same horizontal line, and the bearing surface of each support frame is at the same horizontal height, used to bear the load-bearing web and the fiber reinforced fabric; at least three support rods are vertically installed on at least three support frames one by one, and correspond to the positions of the positioning holes of the load-bearing web and the fiber reinforced fabric; the load-bearing web and the fiber reinforced fabric are alternately stacked in sequence, first inserting the support rods in sequence from small to large width and placing them on the support frame, and then inserting the support rods in sequence from large to small width and placing them on the support frame, to form a spindle-shaped stacking structure, and the bottom layer and the top layer are both the load-bearing web;

[0010] S3: using a tightening member to surround the stacked structure along the outer contour direction and applying a pre-tightening force so that the entire stacked structure maintains a spindle-shaped state;

[0011] S4: hoisting and flipping the tightened stacked structure onto a conformable mold, and performing resin infusion and curing molding on the stacked structure by using a vacuum infusion process;

[0012] S5: hoisting the formed stacked structure onto a CNC machining equipment platform, performing milling processing, and milling the spindle-shaped stacked structure into an airfoil profile.

[0013] Furthermore, at least three mounting holes are evenly spaced along the same horizontal line on the stacking platform, and at least three support frames can be inserted into the mounting holes and fixedly connected to the stacking platform.

[0014] Furthermore, the support frame includes a flange bracket and a base, the upper surface of the flange bracket is provided with a through hole, the support rod can be inserted into the through hole of the flange bracket and fixedly connected to the flange bracket, one end of the base is welded to the lower surface of the flange bracket, and the other end of the base is fixedly plugged into the mounting hole of the stacking platform.

[0015] Furthermore, each base is provided with scale lines.

[0016] Furthermore, a plurality of the tightening members are provided, and the plurality of the tightening members are arranged at intervals along the length direction of the fiber reinforced fabric and the load-bearing web.

[0017] Furthermore, the tightening members are provided on both sides of each of the support rods.

[0018] Furthermore, the tightening device includes a tightening belt and a locking portion, the locking portion is arranged at both ends of the tightening belt, the tightening belt is arranged around the outer contour direction of the stacking structure, and the locking portion can lock or release the tightening belt to facilitate tightening the stacking structure.

[0019] Furthermore, the locking portion includes a male buckle and a female buckle, either one of the male buckle and the female buckle is connected to one end of the tightening belt, and the other is connected to the other end of the tightening belt, and the male buckle can be snap-connected with the female buckle.

[0020] Furthermore, the tightening member also includes a hanging ring, and the hanging ring is arranged on the tightening belt.

[0021] Furthermore, the fiber reinforced fabric includes carbon fiber biaxial cloth, and the load-bearing web includes a carbon fiber pultruded plate.

[0022] Beneficial effects of the present invention:

[0023] The present invention provides a method for forming a heavy-duty hydrofoil plate, which can ensure that the load-bearing webs and fiber-reinforced fabrics of each layer are accurately aligned by cutting more than a hundred layers of load-bearing webs and fiber-reinforced fabrics into different sizes with the same length and gradually changing width from small to large according to design requirements before stacking, and evenly spaced a plurality of positioning holes in the length direction of each load-bearing web and fiber-reinforced fabric; by performing a stacking operation on a stacking tool, the load-bearing webs and fiber-reinforced fabrics are alternately stacked in sequence to form a spindle-shaped stacking structure, which can be quickly and accurately stacked, positioned and combined, saving a lot of time and labor costs; by surrounding the stacking structure with a tightening member along the outer contour direction of the stacking structure and applying a pre-tightening force, the stacking is ensured. Before the vacuum infusion process, ensure that the entire stacked structure maintains integrity during hoisting and flipping to avoid misalignment or deformation between layers caused by external force, vibration or other factors; by utilizing the conformal mold and the vacuum infusion process, ensure that the entire stacked structure is formed under the constraint of the conformal mold, so that the final hydrofoil airfoil surface is more precise, and the vacuum infusion process can effectively remove bubbles, so that the resin can penetrate more evenly between the load-bearing web and the fiber-reinforced fabric, thereby improving the density of the material and thus improving the strength, stiffness and durability of the hydrofoil; by hoisting the formed stacked structure onto the CNC machining equipment platform for milling, and by pre-stacking to form a spindle-shaped structure, the milling amount can be effectively reduced. Therefore, the forming method of the heavy-loaded hydrofoil plate can realize the rapid stacking, combination, positioning, fastening and transfer of ultra-thick plates of hundreds of layers, and can ensure that the stacked plates are deformed little after the transfer, simplify the operation process, and improve the assembly efficiency; at the same time, the processing equipment used in this method is simple and easy to obtain, and the investment cost is low; the heavy-loaded hydrofoil plate after injection molding can effectively reduce the amount of milling, improve work efficiency, and has the characteristics of large load-bearing capacity, light weight and strong corrosion resistance. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the assembly of the load-bearing web, fiber-reinforced fabric and stacking tooling in the present invention;

[0025] Figure 2 It is a side view of the assembly of the load-bearing web, fiber-reinforced fabric and stacking tooling in the present invention;

[0026] Figure 3 It is a schematic diagram of the milling amount and airfoil profile of CNC machining equipment in the prior art;

[0027] Figure 4 It is a schematic diagram of the milling amount and airfoil profile of the CNC machining equipment in the present invention.

[0028] In the figure:

[0029] 1. Load-bearing web; 2. Fiber-reinforced fabric; 3. Stacking tooling; 31. Stacking platform; 32. Support frame; 321. Flange bracket; 322. Base; 33. Support rod; 4. Fastening piece; 41. Fastening belt; 42. Locking part; 5. Airfoil profile; 6. Milling amount. DETAILED DESCRIPTION

[0030] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0031] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it 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 elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0032] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0033] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0034] Please refer to Figures 1 to 4As shown, the present invention provides a method for forming a heavy-duty hydrofoil plate, which can realize the rapid stacking, combination, positioning, fastening and transfer of ultra-thick plates of a hundred layers, and can ensure that the deformation of the stacked plates after transfer is small, simplify the operation process, and improve assembly efficiency; at the same time, the processing equipment used in this method is simple and easy to obtain, and the investment cost is low; the heavy-duty hydrofoil plate after pouring molding can effectively reduce the amount of milling 6, improve work efficiency, and has large load-bearing capacity, light weight and strong corrosion resistance. The heavy-duty hydrofoil plate includes a load-bearing web 1 with more than a hundred layers and a fiber-reinforced fabric 2, wherein the method for forming the heavy-duty hydrofoil plate includes the following steps:

[0035] S1: Cutting the load-bearing web 1 and the fiber-reinforced fabric 2 to form different sizes with the same length and gradually changing width from small to large according to design requirements, and each load-bearing web 1 and each fiber-reinforced fabric 2 is provided with at least three positioning holes evenly spaced along the length direction thereof;

[0036] S2: stacking operation is performed on the stacking tool 3, the stacking tool 3 comprises a stacking platform 31, at least three support frames 32 and at least three support rods 33, at least three support frames 32 are fixedly installed on the stacking platform 31 along the same horizontal line, and the bearing surface of each support frame 32 is at the same horizontal height, which is used to bear the load-bearing web 1 and the fiber reinforced fabric 2; at least three support rods 33 are respectively and vertically installed on the at least three support frames 32 in a one-to-one correspondence, and correspond to the positions of the positioning holes of the load-bearing web 1 and the fiber reinforced fabric 2; the load-bearing web 1 and the fiber reinforced fabric 2 are alternately stacked in sequence, firstly inserting the support rods 33 in sequence in the order of width from small to large and placing them on the support frames 32, and then inserting the support rods 33 in sequence in the order of width from large to small and placing them on the support frames 32, so as to form a spindle-shaped stacking structure, and the bottom layer and the top layer are both the load-bearing web 1;

[0037] S3: using the tightening member 4 to surround the outer contour of the stacked structure and applying a pre-tightening force to keep the entire stacked structure in a spindle-shaped state;

[0038] S4: hoisting and flipping the tightened stacked structure onto the conformable mold, and performing resin infusion and curing molding on the stacked structure using a vacuum infusion process;

[0039] S5: hoisting the formed stacked structure onto a CNC machining equipment platform for milling, and milling the spindle-shaped stacked structure to form an airfoil profile 5.

[0040] By cutting the load-bearing webs 1 and fiber reinforced fabrics 2 of more than one hundred layers into different sizes with the same length and width that gradually changes from small to large according to design requirements before stacking, and by evenly spacing a plurality of positioning holes in the length direction of each load-bearing web 1 and fiber reinforced fabric 2, it is possible to ensure that the load-bearing webs 1 and fiber reinforced fabrics 2 of each layer are precisely aligned. By performing stacking operations on the stacking tooling 3, the load-bearing webs 1 and fiber reinforced fabrics 2 are alternately stacked in sequence to form a spindle-shaped stacking structure, wherein the stacking platform 31 serves as the base of the stacking tooling 3 for supporting the entire stacking structure, and at least three support frames 32 are fixed on the stacking platform 31 to provide fixed support points to ensure that each layer of components can be placed firmly during the stacking process. Considering that the stacking operation of more than one hundred layers of ultra-thickness increases with the number of stacking layers, the bottom plate is subjected to greater force, so the bearing surface of each support frame 32 is at the same horizontal height to ensure the flatness of the support and avoid the bottom plate The local stress is large and the plate is damaged; the support rods 33 are vertically installed on the support frame 32 one by one, and correspond to the positioning holes of each load-bearing web 1 and fiber reinforced fabric 2, which can effectively ensure that each layer of load-bearing web 1 and fiber reinforced fabric 2 is aligned in the vertical direction to avoid misalignment or misalignment during the stacking process; therefore, the stacking tool 3 enables more than a hundred layers of ultra-thick load-bearing webs 1 and fiber reinforced fabrics 2 to be quickly and accurately stacked, positioned and combined, saving a lot of time and labor costs, and can provide stable support, avoiding the problems of inaccurate positioning or deformation that may exist in traditional methods.

[0041] By wrapping the tightening member 4 around the outer contour of the stacked structure and applying a pre-tightening force, it is ensured that the entire stacked structure maintains integrity during lifting and flipping before the vacuum introduction process, avoiding misalignment or deformation between layers caused by external force, vibration or other factors. Through this pre-tightening process, a high structural stability can be maintained throughout the entire molding process, thereby ensuring that the final hydrofoil panel has the expected size and shape.

[0042] Since the conformable mold is manufactured according to the airfoil design and highly matches the final shape of the target hydrofoil board, by hoisting and flipping the tightened stacked structure to fit the conformable mold, it can ensure that the entire stacked structure is formed under the constraint of the conformable mold, making the final hydrofoil board airfoil surface more accurate and reducing the amount of subsequent processing. In addition, the vacuum introduction process is a composite material forming method, which mainly uses vacuum negative pressure to introduce resin into the reinforcement material layer and achieve curing and forming; the vacuum introduction process can effectively remove bubbles, so that the resin can penetrate more evenly between the load-bearing web 1 and the fiber reinforced fabric 2, improve the density of the material, thereby improving the strength, stiffness and durability of the hydrofoil board, and the vacuum negative pressure can accurately control the flow of resin, avoid excessive use of resin, increase the ratio of resin to reinforcement material, and reduce the amount of resin. Not only does it reduce production costs, it can also reduce the overall weight of the hydrofoil board and improve its efficiency and dynamic performance in the water. The heavy-duty hydrofoil board obtained in this way has higher strength and better fatigue resistance, and is suitable for high-intensity underwater working environments. By hoisting the tightened stacked structure out of the stacking fixture 3 and then flipping it onto the conformable mold and vacuum infusing it, the spindle-shaped stacked structure can naturally fit the mold and initially form a hydrofoil plate that is close to the final shape.

[0043] By hoisting the formed stacked structure onto the CNC machining equipment platform for milling, and pre-stacking to form a spindle-shaped structure, the amount of milling can be effectively reduced by 6; Figure 3 and Figure 4 From the comparison, it can be seen that since the load-bearing web 1 and the fiber-reinforced fabric 2 have been stacked according to the shape of the airfoil profile 5 before the infusion molding, the overall structure is close to the final molding shape, so less material is removed by milling; while the traditional method usually uses larger-sized integral blocks, and large-scale cutting is required after infusion molding to obtain a precise airfoil profile 5, which results in a large amount of material being wasted; therefore, the present method reduces unnecessary cutting losses, improves material utilization, reduces milling amount 6, improves work efficiency, and reduces costs by optimizing the stacking method.

[0044] It should be noted that the fiber reinforced fabric 2 includes a carbon fiber biaxial cloth, and the load-bearing web 1 includes a carbon fiber pultruded plate; wherein, the combination of the carbon fiber biaxial cloth and the carbon fiber pultruded plate can significantly improve the strength and rigidity of the heavy-loaded hydrofoil board. The carbon fiber material has excellent tensile strength and rigidity, and can withstand large loads without deformation or breakage. It is particularly suitable for applications such as heavy-loaded hydrofoil boards that need to withstand high-intensity working environments; and the carbon fiber material has a low density, so it can significantly reduce the weight of the structure, which is especially important for applications where the hydrofoil board needs to be light but high-strength. The reduced weight can effectively reduce energy consumption and improve maneuverability.

[0045] In addition, the support rods may include carbon fiber rods. By utilizing the low density of carbon fiber materials, the use of carbon fiber rods as support rods can significantly reduce the weight of the overall structure. At the same time, the carbon fiber rods also have high tensile strength and rigidity and can withstand large loads.

[0046] In some embodiments, at least three positioning holes opened on each load-bearing web 1 and each fiber reinforced fabric 2 are opened at the center position of each load-bearing web 1 and each fiber reinforced fabric 2 in the width direction, and two of the positioning holes are respectively arranged at the two ends in the length direction, and the remaining positioning holes are evenly spaced between the positioning holes at the two ends, which can form a stable positioning reference, so that the support frame 32 provides uniform support force for the load-bearing web 1 and the fiber reinforced fabric 2.

[0047] In other embodiments, four, five or six positioning holes may be provided on each load-bearing web 1 and each fiber-reinforced fabric 2, which is not specifically limited herein.

[0048] In order to improve the stability of the connection between the support frame 32 and the stacking platform 31, in some embodiments, at least three mounting holes are evenly spaced along the same horizontal line on the stacking platform 31, and at least three support frames 32 can be plugged into the mounting holes and fixedly connected to the stacking platform 31; wherein, the support frame 32 is connected to the mounting holes on the stacking platform 31 in a "plug-in + fixed" manner, which can effectively prevent the support frame 32 from slipping or shaking during the stacking process, thereby ensuring the stability of the entire stacking process; and because the mounting holes are evenly spaced, an accurate mounting position is provided for the support frame 32, so that the load-bearing web 1 and the fiber-reinforced fabric 2 are accurately positioned when stacked, and there will be no misalignment or tilt. It is understandable that after the support frame 32 is inserted into the mounting hole, it can be fixedly connected to the stacking platform 31 by, but not limited to, welding connection, which is not specifically limited here.

[0049] like Figure 2 As shown, specifically, the support frame 32 includes a flange bracket 321 and a base 322, and a through hole is opened on the upper surface of the flange bracket 321, and the support rod 33 can be inserted into the through hole of the flange bracket 321 and fixedly connected to the flange bracket 321, and one end of the base 322 is welded to the lower surface of the flange bracket 321, and the other end of the base 322 is fixedly plugged into the mounting hole of the stacking platform 31; wherein, the flange bracket 321 and the support rod 33 are plugged and fixed by the through hole, which can effectively prevent the support rod 33 from shaking or deflecting, and improve the overall rigidity; one end of the base 322 is welded and fixed to the lower surface of the flange bracket 321, and the other end is plugged into the mounting hole of the stacking platform 31, which enhances the overall bearing capacity of the stacking tooling 3, effectively supports the overall structure of the flange bracket 321 and the support rod 33, and improves the stability and reliability of the stacking tooling.

[0050] In order to ensure that the bearing surface of each support frame 32 is at the same horizontal height, in some embodiments, each base 322 is provided with a scale line; wherein, when the operator installs and fixes the support frame 32, the scale line can determine whether each support frame 32 is at the same horizontal height by observing the scale line on the base 322, and the scale line can provide an accurate reference benchmark for the operation, effectively avoiding the tilt of the stacked structure caused by installation errors, and ensuring uniform force on the load-bearing web 1 and the fiber-reinforced fabric 2.

[0051] Optionally, the base 322 and the inner wall of the mounting hole can be connected by threads. When the operator detects that the support frames 32 are not at the same level, the bearing surface of each support frame 32 can be adjusted to the same level by fine-tuning the relative position of the base 322 and the mounting hole.

[0052] like Figure 1 As shown, in order to improve the tightening effect of the tightening member 4, in some embodiments, a plurality of tightening members 4 are provided, and the plurality of tightening members 4 are spaced apart along the length direction of the fiber reinforced fabric 2 and the load-bearing web 1; wherein, through the spaced distribution of the plurality of tightening members 4, it can be ensured that the stacked structure is uniformly stressed in the entire length direction; and the simultaneous application of pre-tightening force by the plurality of tightening members 4 can effectively improve the stability of the overall structure and avoid inter-layer misalignment or deformation of the stacked structure during lifting, handling and flipping.

[0053] Specifically, each support rod 33 is provided with a tightening piece 4 on both sides; through the double clamping effect of the tightening piece 4 on both sides of the support rod 33, when the stacking structure is separated from the support rod 33, the tightening piece 4 can ensure that the structure remains in a predetermined position, thereby avoiding unnecessary deformation or dislocation, improving the rigidity of the entire structure, and avoiding unnecessary deformation in subsequent process steps; at the same time, the pre-tightening force can be evenly applied to avoid excessive local stress.

[0054] In some embodiments, the tightening member 4 includes a tightening belt 41 and a locking portion 42. The locking portion 42 is provided at both ends of the tightening belt 41. The tightening belt 41 is arranged in a surrounding direction along the outer contour of the stacking structure. The locking portion 42 can lock or release the tightening belt 41 to facilitate tightening the stacking structure. Among them, since the tightening belt 41 itself has the characteristics of flexibility, when it is arranged in a surrounding manner, it can adapt to stacking structures of different shapes and sizes. No matter how the shape of the stacking structure changes, the tightening belt 41 can be tightly fitted and effectively fixed to ensure stability during the molding process. By arranging the locking portion 42 at both ends of the tightening belt 41, the tightening belt 41 can be conveniently locked or released, so that the operator can quickly tighten or loosen the stacking structure, which effectively simplifies the operation process, improves work efficiency, and avoids complex mechanical fixing methods.

[0055] It is understandable that the tightening belt can be, but is not limited to, a webbing or the like, and no specific limitation is made herein.

[0056] Optionally, the locking portion 42 includes a male buckle and a female buckle, either one of the male buckle and the female buckle is connected to one end of the tightening band 41, and the other is connected to the other end of the tightening band 41, and the male buckle can be snapped into the female buckle; wherein, the male buckle and the female buckle are designed to adopt a "press-insert-lock" method, which is convenient for operators to quickly disassemble and assemble without additional adjustment, making disassembly and assembly more efficient. At the same time, the operator can judge whether the connection is in place based on the locking feedback of the male buckle and the female buckle.

[0057] In other embodiments, the locking portion 42 may also be, but is not limited to, a hook fastener, etc., which is not specifically limited here.

[0058] To facilitate lifting, in some embodiments, the tightening member 4 also includes a lifting ring, which is arranged on the tightening belt 41; wherein the lifting ring provides a stable and clear lifting position for other lifting equipment, and the tightened stacked structure can be lifted, transported and flipped more conveniently through the lifting ring.

[0059] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A method for forming a heavy-duty hydrofoil plate, the heavy-duty hydrofoil plate comprising more than 100 layers of load-bearing webs (1) and fiber-reinforced fabrics (2), characterized in that: The method for forming the heavy-duty hydrofoil plate comprises the following steps: S1: Cutting the load-bearing web (1) and the fiber-reinforced fabric (2) to form different sizes with the same length and widths gradually changing from small to large according to design requirements, and each load-bearing web (1) and each fiber-reinforced fabric (2) is provided with at least three positioning holes evenly spaced along the length direction thereof; S2: performing a stacking operation on a stacking tool (3), wherein the stacking tool (3) comprises a stacking platform (31), at least three support frames (32) and at least three support rods (33), wherein the at least three support frames (32) are fixedly mounted on the stacking platform (31) along the same horizontal line, and the bearing surface of each support frame (32) is at the same horizontal height, and is used to bear the load-bearing web (1) and the fiber-reinforced fabric (2); and the at least three support rods (33) are respectively and vertically mounted on the at least three support frames (32) in a one-to-one correspondence. The support frames (32) are arranged on the support frames (32) and correspond to the positions of the positioning holes of the load-bearing webs (1) and the fiber-reinforced fabrics (2); the load-bearing webs (1) and the fiber-reinforced fabrics (2) are alternately stacked in sequence, firstly the support rods (33) are inserted in sequence in order of width from small to large and placed on the support frames (32), and then the support rods (33) are inserted in sequence in order of width from large to small and placed on the support frames (32), so as to form a spindle-shaped stacked structure, and the bottom layer and the top layer are both the load-bearing webs (1); S3: using a tightening member (4) to surround the stacked structure along the outer contour direction and applying a pre-tightening force so that the entire stacked structure maintains a spindle-shaped state; S4: hoisting and flipping the tightened stacked structure onto a conformable mold, and performing resin infusion and curing molding on the stacked structure by using a vacuum infusion process; S5: hoisting the formed stacked structure onto a CNC machining equipment platform and performing milling processing to mill the spindle-shaped stacked structure into an airfoil profile (5).

2. The method for forming a heavy-duty hydrofoil plate according to claim 1, characterized in that: At least three mounting holes are evenly spaced apart along the same horizontal line on the stacking platform (31), and at least three support frames (32) can be inserted into the mounting holes and fixedly connected to the stacking platform (31).

3. The method for forming a heavy-duty hydrofoil plate according to claim 2, characterized in that: The support frame (32) comprises a flange bracket (321) and a base (322); a through hole is provided on the upper surface of the flange bracket (321); the support rod (33) can be inserted into the through hole of the flange bracket (321) and fixedly connected to the flange bracket (321); one end of the base (322) is welded to the lower surface of the flange bracket (321); and the other end of the base (322) is fixedly plugged into the mounting hole of the stacking platform (31).

4. The method for forming a heavy-duty hydrofoil plate according to claim 3, characterized in that: Each base (322) is provided with scale lines.

5. The method for forming a heavy-duty hydrofoil plate according to claim 1, characterized in that: A plurality of the tightening members (4) are provided, and the plurality of the tightening members (4) are arranged at intervals along the length direction of the fiber reinforced fabric (2) and the load-bearing web (1).

6. The method for forming a heavy-duty hydrofoil plate according to claim 5, characterized in that: The tightening members (4) are provided on both sides of each support rod (33).

7. The method for forming a heavy-duty hydrofoil plate according to claim 6, characterized in that: The tightening member (4) comprises a tightening belt (41) and a locking portion (42), wherein the locking portion (42) is arranged at both ends of the tightening belt (41), and the tightening belt (41) is arranged around the outer contour direction of the stacking structure, and the locking portion (42) can lock or release the tightening belt (41) to facilitate tightening the stacking structure.

8. The method for forming a heavy-duty hydrofoil plate according to claim 7, characterized in that: The locking portion (42) includes a male buckle and a female buckle, either of which is connected to one end of the tightening belt (41), and the other is connected to the other end of the tightening belt (41), and the male buckle can be snap-fitted with the female buckle.

9. The method for forming a heavy-duty hydrofoil plate according to claim 8, characterized in that: The tightening member (4) further comprises a hanging ring, and the hanging ring is arranged on the tightening belt (41).

10. The method for forming a heavy-duty hydrofoil plate according to any one of claims 1 to 9, characterized in that: The fiber-reinforced fabric (2) comprises carbon fiber biaxial cloth, and the load-bearing web (1) comprises a carbon fiber pultruded plate.

Images