A main beam glass fiber cloth laying hoist for wind power blade manufacturing

Abstract

The application discloses a main beam glass fiber cloth layering hoist for wind power blade manufacturing, which comprises a lifting support, a shaft assembly rotatably installed on the lifting support, and a lifting hook assembly connecting the shaft assembly to the lifting support, the shaft assembly comprises a rotating shaft and a locking device locking the position of the rotating shaft, the locking device comprises a locking receiving part, a fixing part connected to the locking receiving part, and a locking piece matched with the locking receiving part, and the two ends of the glass fiber cloth abut against the fixing parts of a pair of locking devices and are fixed to the rotating shaft by the cooperation of the locking piece and the locking receiving part. The layering hoist can quickly, accurately and flatly lay the glass fiber cloth into a mold, reduces subsequent manual adjustment, saves the time and manpower for adjusting the glass fiber cloth after laying, thereby reducing the labor cost, ensuring the laying quality, and improving the laying efficiency.

Description

Technical Field

[0001] This invention relates to the field of wind turbine blade manufacturing technology, and in particular to a fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing. Background Technology

[0002] Wind turbine blades are key components of wind power equipment. One prefabricated component within a blade is the main beam, a load-bearing structure. Currently, the main beam prefabricated component is bonded to the blade body via secondary bonding during manufacturing. This method significantly impacts the overall quality of the blade. Therefore, a new method has emerged: placing the fiberglass cloth of the main beam directly into the blade body using lifting equipment, allowing for direct injection with the pre-laid fiberglass layers. The design of the lifting equipment is particularly crucial for large blades. The main beam prefabricated component is a major part of the blade and is quite large; improper clamping by the lifting equipment can easily cause deformation, resulting in substantial economic losses.

[0003] Therefore, providing a new type of wind turbine blade main beam layup lifting tool is an urgent problem to be solved in this field. Summary of the Invention

[0004] To address the aforementioned problems and overcome the shortcomings of existing technologies, this invention provides a simple, easy-to-manufacture, and low-cost fiberglass cloth laying hanger for the main beam of wind turbine blade manufacturing. This layer hanger can quickly, accurately, and flatly lay the fiberglass cloth into the mold, reducing subsequent manual adjustments and saving time and manpower for adjusting the fiberglass cloth after laying, thereby reducing labor costs and improving laying efficiency while ensuring laying quality.

[0005] To address the aforementioned problems, this invention provides a fiberglass cloth layup hoist for the main beam of wind turbine blade manufacturing. The hoist includes a lifting bracket, a shaft assembly rotatably mounted on the lifting bracket, and a hook assembly connecting the shaft assembly to the lifting bracket. The shaft assembly includes a rotating shaft and a locking device for locking the position of the rotating shaft. The locking device includes a locking receiving part, a fixing part connected to the locking receiving part, and a locking member cooperating with the locking receiving part. Both ends of the fiberglass cloth abut against the fixing parts of the pair of locking devices, and the fiberglass cloth is fixed to the rotating shaft by the locking member cooperating with the locking receiving part.

[0006] Furthermore, the shaft assembly also has a bushing, the rotating shaft is rotatably mounted on the bushing, and the hook assembly is connected to the bushing.

[0007] Furthermore, the diameter of the fixed part extending towards the free end becomes smaller and smaller, and the fixed part is frustum-shaped.

[0008] Furthermore, the shaft assembly also has shaft ends connected to both ends of the rotating shaft, the shaft ends being solid and the rotating shaft being hollow.

[0009] Furthermore, the shaft assembly also has a blocking portion to prevent the bushing from falling off.

[0010] Furthermore, the hook assembly includes a middle plate rotatably connected to the lifting bracket, and when the shaft assembly is installed on the hook assembly, the middle plate is elastically preloaded toward the shaft assembly.

[0011] Furthermore, the hook assembly includes a first hook plate and a second hook plate, with the middle plate located between the first hook plate and the second hook plate.

[0012] Furthermore, the middle plate includes a movable part and a middle plate fixing part, wherein the middle plate fixing part is fixedly installed between the first hook plate and the second hook plate, and the movable part is rotatably connected between the lifting brackets.

[0013] Furthermore, in this invention, the fiberglass cloth laying hanger for the main beam fixes the fiberglass cloth roll through the shaft assembly, which can quickly, accurately, and flatly lay the fiberglass cloth into the mold, ensuring laying quality while improving laying efficiency, guaranteeing the quality of the blades, and providing high safety and reliability. Attached Figure Description

[0014] Figure 1 This is a perspective view of the fiberglass cloth layup lifting device for the main beam used in the manufacture of wind turbine blades in this invention.

[0015] Figure 2 This is a schematic diagram of the lifting support structure in this invention.

[0016] Figure 3 This is a partial exploded view of the lifting support in this invention.

[0017] Figure 4 These are exploded and perspective views of the shaft assembly in this invention.

[0018] Figure 5 This is a schematic diagram of the assembly of the central shaft assembly and the fiberglass cloth roll in this invention. Detailed Implementation

[0019] See Figures 1 to 5 The present invention provides the structural composition of the fiberglass cloth layup lifting device for the main beam used in wind turbine blade manufacturing. The fiberglass cloth layup lifting device for the main beam used in wind turbine blade manufacturing includes a lifting bracket 100, a shaft assembly 5 rotatably mounted on the lifting bracket 100, and a hook assembly 4 connecting the shaft assembly 5 to the lifting bracket 100.

[0020] The lifting support 100 includes a support portion 2 and a pair of side plates 3 connected to both sides of the support portion 2. The support portion 2 is also fixedly connected to a connecting portion 1, which is used to connect a trolley. The trolley, using the lifting device of this invention, carries the fiberglass cloth roll inside the wind turbine blade while simultaneously laying the fiberglass cloth. Figure 2 As shown, in this embodiment, the crane is hooked to the connecting hole of the connecting part 1 via a hook. In other embodiments, the lifting bracket 100 can also be connected to the crane via other connection methods, and the present invention does not limit this. The hook assembly 4 is connected to the side plate 3, and the hook assembly 4 is connected to the shaft assembly 5.

[0021] The hook assembly 4 includes a first hook plate 41, a second hook plate 42, and a middle plate 43 connecting the first hook plate 41 and the second hook plate 42. The first hook plate 41 and the second hook plate 42 are fixedly connected to the side plate 3 by bolts 44, wherein the bolts 44 pass through the second hook plate 42, the side plate 3, and the first hook plate 41 in sequence, and form a threaded connection with the first hook plate 41. The middle plate 43 includes a movable part 431 and a middle plate fixed part 432. The middle plate fixed part 432 is installed between the first hook plate 41 and the second hook plate 42 by bolts, and the movable part 431 is rotatably connected to the side plate 3 by an elastic pin 433. When the shaft assembly 5 is installed on the hook assembly 4, the movable part 431 is elastically preloaded towards the shaft assembly 5 by the elastic pin 433 to ensure that the shaft assembly 5 will not fall off the hook assembly 4.

[0022] The shaft assembly 5 includes a rotating shaft 51 and bushings 53 located at both ends of the rotating shaft 51. The bushings 53 are fitted onto the outside of the rotating shaft 51, and the rotating shaft 51 is rotatably mounted on the bushings 53. In this embodiment, shaft ends 52 are welded to both sides of the rotating shaft 51. To reduce the weight of the rotating shaft 51, the rotating shaft 51 is constructed as hollow, and the shaft ends 52 are constructed as solid. In other embodiments of the present invention, the rotating shaft 51 can also be constructed as solid, without having to construct the rotating shaft and shaft ends as separate structures. A pair of locking devices 55 are also installed on the outside of the rotating shaft 51. The locking devices 55 are fitted onto the outside of the rotating shaft. The locking devices 55 include a locking receiving part 551, a fixing part 552 extending from one end of the locking receiving part 551, and a locking member 553 that cooperates with the locking receiving part 551. The locking member 553 passes through the locking receiving part 551 and is tightened and fixed to the outer surface of the rotating shaft 51. In this embodiment, the locking member 553 is a wing screw, and the locking receiving part 551 has at least one threaded hole that engages with several wing screws. The fixing part is frustum-shaped, and the diameter of the fixing part decreases as it extends toward the free end. The fiberglass cloth roll 71 abuts between a pair of fixing parts, and the locking member 553 passes through the locking receiving part 551 and locks the locking device 55 onto the rotating shaft 51, thereby fixing the fiberglass cloth roll onto the rotating shaft 51 by the locking device 55. The decreasing diameter of the fixing part toward the free end is suitable for rolls 71 of different diameters. The bushing 53 is sleeved on the shaft end 52, and the bushing 53 is limited to the shaft end 52 by the blocking part 54 to prevent the bushing from falling off the shaft end 52. Specifically, a bolt passes through the blocking part 54 and connects to the shaft end 52, wherein the shaft end 52 has an internal thread, and the bolt passes through the blocking part 54 and is threadedly connected to the shaft end 52. The relative rotation between the bushing 53 and the shaft end 52 satisfies the rotation requirement of the fiberglass cloth roll 72, and the fiberglass cloth is laid during the travel of the crane. The hook assembly 4 is clamped on the bushing 53 of the shaft assembly 5, thereby fixing the shaft assembly 5 to the lifting bracket 100.

[0023] A pair of handles 6 are connected to the side plate 3. The handles 6 are used to control the direction of the lifting device and ensure that the lifting device does not sway. The handles 6 have a straight handle 61 and a bent handle 62. The user can choose the straight handle or the bent handle as needed. The handles 6 are connected to both sides of the side plate by cotter pins.

[0024] During the winding process 71, the two ends of the fixing part 552 abut against the two ends of the winding 71, and the locking part 553 fixes the winding 71 to the rotating shaft 51. The relative rotation between the bushing 53 and the shaft end 52 satisfies the rotation requirements of the fiberglass cloth roll 72, and the gantry crane completes the laying of the fiberglass cloth during its travel. During the fiberglass cloth laying process, the fiberglass cloth can be placed into the mold quickly, accurately, and flatly, reducing subsequent manual adjustments and saving time and manpower for adjusting the fiberglass cloth after laying, thereby reducing labor costs and improving laying efficiency while ensuring laying quality.

[0025] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing, comprising a lifting bracket (100), a shaft assembly (5) rotatably mounted on the lifting bracket (100), and a hook assembly (4) connecting the shaft assembly (5) to the lifting bracket (100), characterized in that, The shaft assembly (5) includes a rotating shaft (51) and a locking device (55) for locking the position of the rotating shaft (51). The locking device (55) includes a locking receiving part (551), a fixing part (552) connected to the locking receiving part (551), and a locking member (553) that cooperates with the locking receiving part (551). The two ends of the fiberglass cloth abut between the fixing parts of the pair of locking devices (55), and the fiberglass cloth is fixed to the rotating shaft (51) by the cooperation of the locking member (553) and the locking receiving part (551). The hook assembly (4) includes a middle plate (43), which is rotatably connected to the lifting bracket. When the shaft assembly (5) is installed on the hook assembly (4), the middle plate is elastically preloaded toward the shaft assembly (5). The hook assembly (4) includes a first hook plate (41) and a second hook plate (42), and the middle plate (43) is located between the first hook plate (41) and the second hook plate (42). The middle plate (43) includes a movable part (431) and a middle plate fixing part (432). The middle plate fixing part (432) is fixedly installed between the first hook plate (41) and the second hook plate (42), and the movable part (431) is rotatably connected to the lifting bracket (100). The lifting bracket (100) includes a support (2) and a pair of side plates (3) connected to both sides of the support (2). The first hook plate (41) and the second hook plate (42) are fixedly connected to the side plates (3), and the movable part (431) is rotatably connected to the side plates (3) by an elastic pin (433).

2. The fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing according to claim 1, characterized in that, The shaft assembly (5) also has a bushing (53), the rotating shaft (51) is rotatably mounted on the bushing (53), and the hook assembly (4) is connected to the bushing (53).

3. The fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing according to claim 1, characterized in that, The diameter of the fixing part (552) extending toward the free end becomes smaller and smaller, and the fixing part (552) is frustum-shaped.

4. The fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing according to claim 1, characterized in that, The shaft assembly (5) also has shaft ends (52) connected to both ends of the rotating shaft (51), the shaft ends being solid and the rotating shaft (51) being hollow.

5. The fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing according to claim 2, characterized in that, The shaft assembly (5) also has a blocking part (54) to prevent the bushing (53) from falling off.

6. The fiberglass cloth layup lifting device for the main beam of wind turbine blade manufacturing according to claim 4, characterized in that, The shaft assembly (5) also has a bushing (53) sleeved on the shaft end (52), the rotating shaft (51) is rotatably mounted on the bushing (53), and the hook assembly (4) is connected to the bushing (53), wherein the requirement for the rotation of the fiberglass cloth roll is met by the relative rotation between the bushing (53) and the shaft end (52).

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