A glass fibre chopped strand mat for wind turbine blades
Patent Information
- Application Number
- CN202522033778.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-09-22
- Publication Date
- 2026-09-18
- Estimated Expiration
- 2035-09-22
AI Technical Summary
[0004]有鉴于此，本实用新型的目的在于提出风力发电叶片用玻璃纤维短切毡，以解决现有切割设备切割位置精度低、角度适应性差的问题
1.该种风力发电叶片用玻璃纤维短切毡，通过设置有调节组件，能够在切割过程中实现玻璃纤维短切毡在三维空间内的精准定位与稳定支撑，使切割刀具的位置能够根据不同形状和工艺需求灵活调整，避免因位置单一而造成切割不均或误差，从而提升切割的适应性和精度；同时调节组件配合锁紧机构使用，在完成角度调整后可快速实现固定，保证切割过程中的稳定性和安全性，避免因刀具抖动影响切割质量；此外，通过电机、蜗轮蜗杆等传动结构的应用，能够实现平稳切，提高生产效率，调节组件的设置不仅提升了玻璃纤维短切毡的切割质量和一致性，还增强了装置在风力发电叶片生产中的灵活性和实用性。
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Figure CN224765633U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of wind turbine blade manufacturing technology, and in particular to a glass fiber chopped strand mat for wind turbine blades. Background Technology
[0002] As a clean and renewable energy source, wind power is playing an increasingly important role in the global energy structure transformation. As one of the core components of wind turbines, the performance of wind turbine blades directly affects the efficiency and stability of wind power generation. As a key material for manufacturing wind turbine blades, the cutting precision and laying angle accuracy of chopped fiberglass mat play a decisive role in the quality and performance of the blades.
[0003] Fiberglass chopped strand mat for wind turbine blades is a key reinforcing material specifically used in blade manufacturing. It is made by chopping glass fibers to form a felt-like structure, which has high mechanical strength and excellent fiber distribution uniformity. It can effectively improve the overall structural performance of the blade. During the manufacturing process, the chopped strand mat needs to be laid according to the curved shape of the blade to ensure that the angle and density of the fibers in different areas meet the design requirements, thereby enhancing the bending resistance and fatigue life of the blade. However, when processing chopped strand mat (CSSM) using traditional cutting equipment, only single-direction or straight-line cutting is possible. Wind turbine blades, with their highly irregular geometry, often require secondary cutting and trimming after the initial cut to ensure the material conforms to the blade's complex contours. This not only increases the number of steps and reduces production efficiency but also easily leads to uneven fiber distribution or cut deviations due to multiple cuts, affecting the structural strength and surface quality of the finished product. Furthermore, existing equipment has limited angle adjustment capabilities, typically only allowing for a few fixed angle adjustments, which is insufficient to meet the diverse needs of curved blade surface installation. The angle adjustment process lacks smoothness and precision, is cumbersome, and inefficient. Its angle locking mechanism is also unreliable, posing a risk of loosening during cutting, further hindering the application of CSSM in wind turbine blade manufacturing. Utility Model Content
[0004] In view of this, the purpose of this utility model is to propose a glass fiber chopped strand mat for wind turbine blades to solve the problems of low cutting position accuracy and poor angle adaptability of existing cutting equipment.
[0005] To achieve the above objectives, this utility model provides chopped fiberglass mat for wind turbine blades, comprising: a support frame, on one side of which at least two first slide rails are fixedly mounted, and an operating platform is installed between the two first slide rails; and an adjustment assembly, mounted on one side of the first slide rails, the adjustment assembly being used to achieve stable cutting of the chopped fiberglass mat in three-dimensional space, the adjustment assembly including a plurality of connecting arms disposed on one side of the first slide rails, a mounting seat slidably mounted between two of the connecting arms, a worm gear fixedly mounted on one side of the mounting seat, and a mating seat slidably mounted on one side of the mounting seat. An internal motor is installed on one side of the device, and a worm gear is installed at the output end of the motor. The worm wheel is adapted to the worm gear. A plurality of first locking holes are opened on one side of the connecting arm, and a plurality of first locking pins are connected to the first locking holes. A second sliding groove is vertically opened on one side of the connecting arm. Connecting plates are fixedly installed on the symmetrical sides of the mounting base. The connecting plates are slidably installed in the second sliding groove. A plurality of second locking holes are opened on the connecting plates, and the first locking pins are adapted to the second locking holes. A cutting assembly is installed on one side of the adjusting assembly. The cutting assembly is used to realize the rapid switching of the cutting angle of chopped strand mat.
[0006] Preferably, a plurality of second slide rails are slidably mounted on the first slide rail, and the connecting arm is slidably mounted on the second slide rails.
[0007] Preferably, a first groove is provided on one side of the second slide rail, one end of the connecting arm is slidably installed in the first groove, a through hole is provided in the mating seat, the motor is installed in the through hole, a mounting groove is provided in the mounting seat, and the worm gear is fixedly installed in the mounting groove.
[0008] Preferably, the cutting assembly includes a connecting seat fixedly installed on one side of the mating seat, a fixing sleeve fixedly installed on one side of the connecting seat, a trigger cover slidably installed on one side of the fixing sleeve, and a cutting blade rotatably installed on one side of the connecting seat.
[0009] Preferably, a connecting post is movably installed inside the trigger cover, a return spring is fixedly installed on one side of the connecting post, the other side of the return spring is fixedly installed on the inside side of the trigger cover, a fixing strip is fixedly installed on one side of the connecting post, a ratchet is installed on one side of the fixing strip, a connecting plate is fixedly installed on one side of the cutting blade, and a pawl is provided on one side of the connecting plate, the pawl being adapted to the inside of the ratchet.
[0010] Preferably, limit blocks are fixedly installed on both sides of the inner wall of the trigger cover, a third locking hole is opened inside the connecting column, a sliding strip is slidably installed in the third locking hole, and the symmetrical sides of the sliding strip are respectively arranged opposite to the limit blocks and abut against each other during the sliding process.
[0011] The beneficial effects of this utility model are: 1. This type of chopped fiberglass mat for wind turbine blades, equipped with an adjustment component, enables precise positioning and stable support of the chopped fiberglass mat in three-dimensional space during the cutting process. This allows the position of the cutting tool to be flexibly adjusted according to different shapes and process requirements, avoiding uneven cutting or errors caused by a single position, thereby improving the adaptability and precision of the cutting. Simultaneously, the adjustment component, used in conjunction with a locking mechanism, can be quickly fixed after angle adjustment, ensuring stability and safety during the cutting process and preventing cutting quality from being affected by tool vibration. Furthermore, the application of transmission structures such as motors and worm gears enables smooth cutting, improving production efficiency. The adjustment component not only improves the cutting quality and consistency of the chopped fiberglass mat but also enhances the flexibility and practicality of the device in wind turbine blade production.
[0012] 2. This type of chopped fiberglass mat for wind turbine blades, equipped with a cutting assembly, allows for flexible adjustment of the cutting blade angle, enabling rapid adjustment of the cutting direction according to blades of different shapes or complex curves, thus improving cutting adaptability. The cutting blade is locked by the engagement of a pawl and ratchet, preventing deflection or loosening during cutting. A return spring ensures automatic blade reset, guaranteeing the blade is in a controllable and stable position before each cut, improving operational reliability. The guiding and limiting action of the sliding strip and limit block ensures smooth and precise triggering of the mechanism, preventing shaking or jamming during operation, improving safety, and making the cutting process of the chopped fiberglass mat efficient, precise, and convenient, significantly improving production efficiency and cutting quality. Attached Figure Description
[0013] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only for this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0014] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram showing the disassembled structure of the adjustment component of this utility model; Figure 3This is a schematic diagram of the internal structure of the cutting component of this utility model; Figure 4 This is a schematic diagram showing the disassembled structure of the reset spring, third locking hole, and connecting disc of this utility model.
[0015] The diagram is marked as follows: 1. Support frame; 2. Operating platform; 3. First slide rail; 4. Second slide rail; 5. First slide groove; 6. Connecting arm; 7. First locking hole; 8. First locking post; 9. Second slide groove; 10. Connecting plate; 11. Second locking hole; 12. Mounting base; 13. Mounting groove; 14. Worm gear; 15. Motor; 16. Worm; 17. Mating seat; 18. Through hole; 19. Trigger cover; 20. Fixing sleeve; 21. Connecting base; 22. Cutting blade; 23. Limiting block; 24. Sliding bar; 25. Ratchet; 26. Fixing bar; 27. Connecting post; 28. Return spring; 29. Third locking hole; 30. Connecting plate; 31. Pawl. Detailed Implementation
[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments.
[0017] It should be noted that, unless otherwise defined, the technical or scientific terms used in this utility model should have the ordinary meaning understood by one of ordinary skill in the art to which this utility model pertains. The terms "first," "second," and similar terms used in this utility model do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed following the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are used only to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.
[0018] like Figures 1 to 4As shown, the chopped strand mat for wind turbine blades includes: a support frame 1, with at least two first slide rails 3 fixedly mounted on one side of the support frame 1, and an operating platform 2 installed between the two first slide rails 3; an adjustment assembly, installed on one side of the first slide rails 3, the adjustment assembly being used to achieve stable cutting of the chopped strand mat in three-dimensional space, the adjustment assembly including several connecting arms 6 disposed on one side of the first slide rails 3, a mounting base 12 slidably mounted between two connecting arms 6, a worm gear 14 fixedly mounted on one side of the mounting base 12, a mating seat 17 slidably mounted on one side of the mounting base 12, a motor 15 disposed on one side of the mating seat 17, a worm gear 16 mounted on the output end of the motor 15, the worm gear 14 and the worm gear 16 being adapted to each other, connecting... A plurality of first locking holes 7 are provided on one side of the arm 6, and a plurality of first locking pins 8 are connected to the first locking holes 7. A second sliding groove 9 is vertically provided on one side of the connecting arm 6. Connecting plates 10 are fixedly installed on the symmetrical sides of the mounting base 12. The connecting plates 10 are slidably installed in the second sliding grooves 9. A plurality of second locking holes 11 are provided on the connecting plates 10, and the first locking pins 8 are adapted to the second locking holes 11. A cutting assembly is installed on one side of the adjusting assembly. The cutting assembly is used to realize the rapid switching of the cutting angle of chopped strand mat. A plurality of second sliding rails 4 are slidably installed on the first sliding rail 3, and the connecting arm 6 is slidably installed on the second sliding rails 4. A first sliding groove 5 is provided on one side of the second sliding rail 4, and one end of the connecting arm 6 is slidably installed in the first sliding groove 5. The mounting base 12 has a through hole 18, and a motor 15 is installed inside the through hole 18. A mounting groove 13 is provided inside the mounting base 12, and a worm gear 14 is fixedly installed inside the mounting groove 13. When cutting chopped fiberglass mat, a stable support and guiding structure is first formed by the support frame 1 and the first slide rail 3. The operating platform 2 is used to support and fix the material to be cut. The adjusting component achieves the positioning of the mounting base 12 and the mating seat 17 in three-dimensional space through the sliding engagement of the connecting arm 6 in the second slide rail 4 and the first slide groove 5. The motor 15 is installed inside the mating seat 17 through the through hole 18 and connected to the worm gear 16. After the motor 15 starts, it drives the worm gear 16 to rotate. The worm gear 16 meshes with the worm gear 14 in the mounting groove 13, driving the mounting base 12 and its components. The cutting assembly adjusts its angle to achieve continuous or stepped switching of the cutting angle. Simultaneously, the engagement between the first locking hole 7 on the connecting arm 6 and the first locking pin 8, as well as the second locking hole 11 on the connecting plate 10, enables rapid locking and position fixation after adjustment, ensuring structural stability and angular accuracy during cutting. Once the cutting assembly is adjusted to the appropriate angle by the adjusting assembly, it can cut the chopped fiber mat. With the use of multiple sets of slide rails and locking mechanisms, it not only achieves positioning and stable support of the chopped fiber mat in the horizontal, vertical, and angular directions, but also enables efficient switching between different cutting angles through rapid adjustment and locking, thus ensuring the stability, accuracy, and efficiency of chopped fiber mat cutting.
[0019] like Figure 3 , Figure 4 As shown, the cutting assembly includes a connecting seat 21 fixedly installed on one side of the mating seat 17, a fixing sleeve 20 fixedly installed on one side of the connecting seat 21, a trigger cover 19 slidably installed on one side of the fixing sleeve 20, and a cutting blade 22 rotatably installed on one side of the connecting seat 21; a connecting post 27 is movably installed inside the trigger cover 19, a return spring 28 is fixedly installed on one side of the connecting post 27, the other side of the return spring 28 is fixedly installed inside the trigger cover 19, a fixing strip 26 is fixedly installed on one side of the connecting post 27, a ratchet 25 is installed on one side of the fixing strip 26, a connecting plate 30 is fixedly installed on one side of the cutting blade 22, a pawl 31 is provided on one side of the connecting plate 30, and the pawl 31 is adapted to the interior of the ratchet 25; limit blocks 23 are fixedly installed on both sides of the inner wall of the trigger cover 19, a third locking hole 29 is opened inside the connecting post 27, a sliding strip 24 is slidably installed in the third locking hole 29, and the symmetrical sides of the sliding strip 24 are respectively arranged opposite to the limit blocks 23 and abut against each other during sliding; When cutting chopped strand mat (CSSM), the cutting blade 22 is initially fixed at a preset cutting angle position through the engagement of the ratchet 25 and the pawl 31, ensuring that the blade does not deviate during the cutting process and guaranteeing the stability and accuracy of the cutting trajectory. During regular straight-line cutting, no additional operation is required; the cutting blade 22 maintains the predetermined angle to complete the cut. However, when encountering irregular shapes or needing to change the cutting direction, the cutting angle needs adjustment. Pressing the trigger cover 19 causes the internal connecting post 27 to move inward, which in turn pushes the fixed strip 26 and the ratchet 25 upward, disengaging the pawl 31 that was originally engaged with the ratchet 25. This releases the angle restriction on the cutting blade 22, allowing it to rotate and adjust to achieve a new angle setting. After adjustment and release of the trigger cover 19, the reset spring 28 automatically pushes the connecting post 27 back to its initial position, causing the fixing bar 26 and ratchet 25 to fall back. The pawl 31 then engages with the ratchet 25 again, achieving stable locking of the new angle position of the cutting blade 22 and preventing deflection during cutting. At the same time, the sliding bar 24 slides in the third locking hole 29 and forms an abutment with the limiting block 23, providing guidance and limiting for the movement of the connecting post 27, ensuring the stability and accuracy of the trigger action, preventing shaking or jamming, and thus improving the reliability of angle adjustment and reset. The cutting assembly can not only achieve efficient cutting of chopped strand mat, but also quickly switch the cutting angle when needed, and maintain the angle by locking the engagement of the ratchet 25 and the pawl 31. It also has the functions of automatic reset and stable limiting, ensuring the flexibility, stability and high precision of the cutting process.
[0020] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of the present invention includes the claims being limited to these examples; within the framework of the present invention, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of the different aspects of the present invention as described above, which are not provided in the details for the sake of brevity.
[0021] This utility model is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A glass fiber chopped strand mat for wind turbine blades, characterized in that, include: A support frame (1) is provided with at least two first slide rails (3) fixedly mounted on one side of the support frame (1), and an operating platform (2) is installed between the two first slide rails (3); an adjustment component is installed on one side of the first slide rails (3), and the adjustment component is used to achieve stable cutting of glass fiber chopped strand mat in three-dimensional space. The adjustment component includes several connecting arms (6) arranged on one side of the first slide rails (3), and a mounting seat (12) is slidably installed between the two connecting arms (6). A worm gear (14) is fixedly mounted on one side of the mounting seat (12), and a mating seat (17) is slidably mounted on one side of the mounting seat (12). A motor (15) is provided on one side of the interior of the mating seat (17), and the motor (15) outputs... A worm gear (16) is installed at the output end, and the worm wheel (14) is adapted to the worm gear (16). A plurality of first locking holes (7) are opened on one side of the connecting arm (6), and a plurality of first locking pins (8) are connected to the first locking holes (7). A second sliding groove (9) is vertically opened on one side of the connecting arm (6). A connecting plate (10) is fixedly installed on both sides of the mounting base (12). The connecting plate (10) is slidably installed in the second sliding groove (9). A plurality of second locking holes (11) are opened on the connecting plate (10), and the first locking pins (8) are adapted to the second locking holes (11). A cutting assembly is installed on one side of the adjusting assembly. The cutting assembly is used to realize the rapid switching of the cutting angle of chopped strand mat.
2. The glass fiber chopped strand mat for wind turbine blades according to claim 1, characterized in that, A plurality of second slide rails (4) are slidably mounted on the first slide rail (3), and the connecting arm (6) is slidably mounted on the second slide rails (4).
3. The glass fiber chopped strand mat for wind turbine blades according to claim 2, characterized in that, The second slide rail (4) has a first slide groove (5) on one side. One end of the connecting arm (6) is slidably installed in the first slide groove (5). The mating seat (17) has a through hole (18). The motor (15) is installed in the through hole (18). The mounting seat (12) has a mounting groove (13). The worm gear (14) is fixedly installed in the mounting groove (13).
4. The glass fiber chopped strand mat for wind power blades according to claim 3, characterized in that, The cutting assembly includes a connecting seat (21) fixedly installed on one side of the mating seat (17), a fixing sleeve (20) fixedly installed on one side of the connecting seat (21), a trigger cover (19) slidably installed on one side of the fixing sleeve (20), and a cutting blade (22) rotatably installed on one side of the connecting seat (21).
5. The glass fiber chopped strand mat for wind power blades according to claim 4, characterized in that, A connecting post (27) is movably installed inside the trigger cover (19). A return spring (28) is fixedly installed on one side of the connecting post (27). The other side of the return spring (28) is fixedly installed on the inside side of the trigger cover (19). A fixing strip (26) is fixedly installed on one side of the connecting post (27). A ratchet (25) is installed on one side of the fixing strip (26). A connecting disc (30) is fixedly installed on one side of the cutting blade (22). A pawl (31) is provided on one side of the connecting disc (30). The pawl (31) is adapted to the inside of the ratchet (25).
6. The glass fiber chopped strand mat for wind power blades according to claim 5, characterized in that, Limiting blocks (23) are fixedly installed on both sides of the inner wall of the trigger cover (19). A third locking hole (29) is opened inside the connecting column (27). A sliding strip (24) is slidably installed in the third locking hole (29). The symmetrical sides of the sliding strip (24) are respectively arranged opposite to the limiting block (23) and abut against each other during the sliding process.