Wind power generation blade storage tool

Abstract

The utility model relates to the field of storage tools, in particular to a wind power generation blade storage tool which comprises a protection unit, a moving unit, a supporting unit, a hoisting unit and a transmission unit. The protection unit is of a square structure with four surrounding surfaces and two opening surfaces; the moving unit is arranged in the protection unit and comprises a supporting base and an auxiliary part arranged on the side portion of the supporting base. The supporting unit comprises a threaded shaft arranged on the top of the supporting base, a supporting piece arranged on the threaded shaft and a driving motor installed at the input end of the threaded shaft. The hoisting unit is arranged at the top of the interior of the protection unit, and the hoisting unit comprises a telescopic piece and a lifting hook installed at the telescopic end of the telescopic piece; and the transmission unit is arranged at the end part of the threaded shaft. The blade hoisting device has the effect of avoiding sideslip collision in the blade hoisting process.

Description

A wind turbine blade storage fixture Technical Field

[0001] This application relates to the field of storage tooling, and more particularly to a storage tooling for wind turbine blades. Background Technology

[0002] In wind power systems, wind turbine blades are the core component that converts wind energy into mechanical energy, and their performance directly determines the wind energy utilization efficiency and the annual power generation of the equipment. Since there is usually a spatial distance between the manufacturing location and the actual installation location of wind turbine blades, temporary storage is required after production for subsequent transportation and installation. Efficient and safe storage fixtures are one of the key technologies to ensure that the blades are not damaged during storage and transportation.

[0003] Existing technology discloses a wind turbine blade storage fixture, which achieves compact storage of three wind turbine blades by setting an extendable support plate and a horizontal support platform at the bottom of the frame, in conjunction with a hoisting mechanism at the top. This effectively reduces the space required for overall storage and movement, and improves space utilization. Simultaneously, this solution enables convenient horizontal entry and exit of the blades through a left-right moving mechanism, enhancing the flexibility of storage and disassembly.

[0004] However, the existing solutions described above have significant drawbacks in practical applications: when using a lifting mechanism to lift the blade, the force application point of the lifting mechanism and the pre-set lifting point of the blade are not kept in the same vertical plane. This results in uneven force on the blade during lifting, which can easily lead to risks such as lateral displacement, collision, or even sideslip. Such problems can not only cause physical damage such as scratches and breaks to the blade surface, affecting its aerodynamic performance, but also increase safety hazards during lifting operations and reduce the practicality and reliability of the storage fixture. Therefore, it is necessary to design a new type of wind turbine blade storage fixture that can ensure that the lifting mechanism and the blade lifting point are in the same vertical plane, thereby improving lifting stability and safety. Summary of the Invention

[0005] To prevent lateral slippage and collision during blade lifting, this application provides a wind turbine blade storage fixture.

[0006] This application provides a wind turbine blade storage fixture, which adopts the following technical solution:

[0007] A wind turbine blade storage fixture, comprising:

[0008] The protective unit is a square structure with four sides surrounding it and two sides open.

[0009] A movable unit, disposed within the protective unit, includes a support base and an auxiliary component disposed on the side of the support base;

[0010] The support unit includes a threaded shaft disposed on the top of the support base, a support member disposed on the threaded shaft, and a drive motor mounted on the input end of the threaded shaft;

[0011] A lifting unit is disposed inside the top of the protective unit. The lifting unit includes a telescopic component and a hook installed at the telescopic end of the telescopic component.

[0012] The transmission unit is located at the end of the threaded shaft.

[0013] By adopting the above technical solutions, the protective unit provides three-dimensional protection and convenient passage. The protective unit adopts a square structure with four sides surrounding and two sides open, which can form three-dimensional protection for the stored wind turbine blades, effectively isolating the risk of physical damage such as external collisions and scratches. The mobile unit provides flexible movement and stable support. The support base of the mobile unit provides a basic bearing platform for the blades. When the blades need to be transferred, the rolling / sliding characteristics of the auxiliary parts reduce the resistance of the tooling movement. The drive motor drives the threaded shaft to rotate, which drives the support parts to move up and down along the threaded shaft, realizing the adjustment of the blade support height. The lifting unit provides vertical alignment and dynamic balance. The telescopic parts of the lifting unit can adjust the height of the hook in the vertical direction. With the guiding effect of the protective unit, it ensures that the hook and the blade lifting point are always in the same vertical plane, avoiding side slippage and collision problems caused by uneven lifting force.

[0014] Preferably, the support base is provided with a support foot at the bottom, and a self-locking omnidirectional wheel is provided on the side of the support foot at the end away from the support base.

[0015] By adopting the above technical solution, the self-locking casters enable the storage fixture to move freely in various scenarios and adapt to complex paths such as narrow passages and bends. When storage or lifting operations are required, the casters are locked by the self-locking mechanism, and the anti-slip contact surface at the bottom of the support foot is in close contact with the ground, improving the overall anti-slip performance of the fixture and avoiding safety risks caused by fixture displacement.

[0016] Preferably, the auxiliary component includes a U-shaped seat mounted on the side wall of the support base, and a sliding wheel movably mounted within the U-shaped seat.

[0017] By adopting the above technical solution, the U-shaped seat is installed on the side wall of the support seat to form a track-type guide structure. The sliding wheel can roll freely in the U-shaped groove along the length of the blade. The stable lateral support and anti-deviation effect are achieved by the vertical plates on both sides of the U-shaped seat forming a limiting space, which effectively constrains the lateral deviation of the blade during the movement process and avoids the blade from colliding with the inner wall of the protective unit.

[0018] Preferably, the protective unit has a sliding groove inside that corresponds to the U-shaped seat.

[0019] By adopting the above technical solution, the sliding groove and the U-shaped seat are matched, making the movement of the U-shaped groove smoother.

[0020] Preferably, the support unit further includes a fixing groove for receiving the threaded shaft, the fixing groove being formed on the top of the support base.

[0021] By adopting the above technical solution, the support component is subjected to uniform force during the lifting process, avoiding lateral stress concentration caused by the tilt of the threaded shaft, and improving the stability of the blade support.

[0022] Preferably, the support includes a movable member mounted on the circumferential side of the threaded shaft, and an end support mounted on the top of the movable member.

[0023] By adopting the above technical solution, for short blades with a center of gravity off-center from the blade root, the moving part can be lowered to the bottom of the threaded shaft, so that the end support is close to the blade root reinforcement area; for long blades, the moving part is raised to the middle support point to avoid structural bending damage.

[0024] Preferably, the support unit further includes a limiting washer disposed on the inner sidewall of the fixing groove, the limiting washer being sleeved on the circumferential side of the threaded shaft.

[0025] By adopting the above technical solutions, it is ensured that the support is always at the preset height, reducing the height deviation of the support point and avoiding the mismatch of the blade's center of gravity and the concentration of structural stress caused by the displacement of the threaded shaft. When the blade experiences instantaneous overload due to hoisting error, the elastic deformation characteristics of the limiting washer can provide a buffer stroke, avoiding structural damage caused by hard contact between the threaded shaft shoulder and the fixing groove.

[0026] Preferably, the protective unit includes a protective cover with openings on two sides, a sealing plate disposed on the side wall of the protective cover, and an opening and closing handle mounted on the sealing plate, wherein the protective cover has a bottom opening and a side wall opening, and the sealing plate is disposed on the opposite surface of the side opening of the protective cover.

[0027] By adopting the above technical solution, the protective cover adopts a four-sided surrounding structure with bottom and side wall openings to form a three-dimensional protection for the blades, resisting external collisions. The bottom opening is adapted to the installation of the support base and the moving unit, allowing the blade support structure to be directly grounded, avoiding friction damage between the bottom of the protective cover and the ground. The side wall openings allow the blades to enter and exit horizontally from the side. With the help of the sliding wheels of the auxiliary components, the loading and unloading time of the blades is shortened. The sealing plate is installed on the opposite side of the side opening of the protective cover, and the opening can be quickly closed and sealed by the opening handle.

[0028] Preferably, the telescopic component includes a hydraulic telescopic cylinder installed on the top wall inside the protective unit, and the hook is installed on the telescopic end of the hydraulic telescopic cylinder.

[0029] By adopting the above technical solution, the hydraulic telescopic cylinder can precisely adjust the height of the hook, ensuring that the hook and the blade lifting point are always in the same vertical plane.

[0030] Preferably, the transmission unit includes a pulley mounted on the end of the threaded shaft and a transmission belt movably disposed between the two pulleys.

[0031] By adopting the above technical solution, the pulley is installed at the end of the threaded shaft and connected by the transmission belt. By utilizing the tooth meshing characteristics of the synchronous belt, the height difference problem of the traditional independent drive support unit is solved, and the structural stress concentration caused by local overload is avoided.

[0032] In summary, this application includes at least one of the following beneficial technical effects:

[0033] With the established moving and supporting units, when wind turbine blades need to be lifted and stored, the blades are first placed on the end supports. Then, the support is pushed into the protective cover, and the drive motor drives the threaded shaft to rotate, causing the support to move the blades along the threaded shaft until the blades are below the hook. Subsequently, the hydraulic telescopic cylinder extends, and after the hook engages with the blades, the cylinder retracts. This ensures that the lifting mechanism and the blade's lifting point are in the same vertical plane during the lifting process, preventing side slippage and collision. After the wind turbine blades are stored, the sealing plate can be quickly opened and closed by pulling the handle, allowing ventilation for the blades inside the protective cover and preventing them from becoming damp and corroded. Attached Figure Description

[0034] Figure 1 is a three-dimensional structural diagram of the wind turbine blade storage fixture in an embodiment of this application;

[0035] Figure 2 is a schematic diagram of the right-side structure of this utility model;

[0036] Figure 3 is a cross-sectional view of section AA in Figure 2 of this utility model;

[0037] Figure 4 is a top view of the structure of this utility model;

[0038] Figure 5 is a schematic diagram of the left-side structure of this utility model.

[0039] Explanation of reference numerals in the attached drawings: 1. Protective unit; 101. Protective cover; 102. Sealing plate; 103. Opening / closing handle; 2. Moving unit; 201. Support base; 202. Support foot; 203. Self-locking caster wheel; 204. Auxiliary component; 2041. U-shaped seat; 2042. Sliding wheel; 3. Support unit; 301. Threaded shaft; 302. Support component; 3021. Moving component; 3022. End support; 303. Drive motor; 304. Limit washer; 4. Lifting unit; 401. Hydraulic telescopic cylinder; 402. Hook; 5. Transmission unit; 501. Pulley; 502. Transmission belt. Detailed Implementation

[0040] The present application will be further described in detail below with reference to Figures 1-5.

[0041] This application discloses a wind turbine blade storage fixture. Referring to Figures 1-5, the wind turbine blade storage fixture includes a protective unit 1, a moving unit 2, a support unit 3, a lifting unit 4, and a transmission unit 5. The protective unit 1 is a square structure with four sides surrounding and two sides open. The moving unit 2 is disposed inside the protective unit 1 and includes a support base 201 and an auxiliary component 204 disposed on the side of the support base 201. The support unit 3 includes a threaded shaft 301 disposed on the top of the support base 201, a support component 302 disposed on the threaded shaft 301, and a drive motor 303 installed at the input end of the threaded shaft 301. The lifting unit 4 is disposed inside the top of the protective unit 1 and includes a telescopic component and a hook 402 installed at the telescopic end of the telescopic component. The transmission unit 5 is disposed at the end of the threaded shaft 301.

[0042] The protective unit 1 provides three-dimensional protection and convenient passage. The protective unit 1 adopts a square structure with four sides surrounding and two sides open, which can form three-dimensional protection for the stored wind turbine blades, effectively isolating the risk of physical damage such as external collisions and scratches. The moving unit 2 provides flexible movement and stable support. The support base 201 of the moving unit 2 provides a basic bearing platform for the blades. When the blades need to be transferred, the rolling / sliding characteristics of the auxiliary component 204 reduce the resistance of the tooling movement. The drive motor 303 drives the threaded shaft 301 to rotate, which drives the support component 302 to move up and down along the threaded shaft 301, thereby adjusting the support height of the blades. The lifting unit 4 provides vertical alignment and dynamic balance. The telescopic component of the lifting unit 4 can adjust the height of the hook 402 in the vertical direction. With the guiding effect of the protective unit 1, it ensures that the hook 402 and the blade lifting point are always in the same vertical plane, avoiding side slippage and collision problems caused by uneven lifting force.

[0043] Referring to Figure 1, the support base 201 has a support foot 202 at its bottom, and a self-locking caster wheel 203 is provided on the side of the support foot 202 away from the support base 201. The self-locking caster wheel 203 allows the storage fixture to move freely in various scenarios, adapting to complex paths such as narrow passages and bends. When storage or lifting operations are required, the caster wheel is locked by the self-locking mechanism, and the anti-slip contact surface at the bottom of the support foot 202 is in close contact with the ground, improving the overall anti-slip performance of the fixture and avoiding safety risks caused by fixture displacement. The auxiliary component 204 includes a U-shaped seat 2041 installed on the side wall of the support base 201, and a sliding wheel 2042 movably installed in the U-shaped seat 2041.

[0044] The U-shaped seat 2041 is installed on the side wall of the support base 201 to form a track-type guide structure. The sliding wheel 2042 can roll freely along the length of the blade within the U-shaped groove, providing stable lateral support and anti-deviation effect. The vertical plates on both sides of the U-shaped seat 2041 form a limiting space, effectively restraining the lateral deviation of the blade during movement and preventing the blade from colliding with the inner wall of the protective unit 1. In an optional embodiment, the protective unit 1 has a sliding groove corresponding to the U-shaped seat 2041 inside. The sliding groove matches the U-shaped seat 2041, making the movement of the U-shaped groove smoother.

[0045] Referring to Figure 2, in the lifting unit 4, the telescopic component includes a hydraulic telescopic cylinder 401 installed on the top wall inside the protective unit 1, and a hook 402 installed on the telescopic end of the hydraulic telescopic cylinder 401. When the telescopic end of the hydraulic telescopic cylinder 401 extends or retracts, it can drive the hook 402 to move up and down. The hydraulic telescopic cylinder 401 precisely adjusts the height of the hook 402 to ensure that the hook 402 and the blade lifting point are always in the same vertical plane.

[0046] Referring to Figure 3, the support unit 3 also includes a fixing groove for accommodating the threaded shaft 301, which is located on the top of the support base 201. This ensures that the support member 302 experiences uniform force during lifting and lowering, preventing lateral stress concentration caused by the tilting of the threaded shaft 301 and improving the stability of the blade support. The support member 302 includes a movable member 3021 mounted on the circumferential side of the threaded shaft 301 and an end support 3022 mounted on the top of the movable member 3021. The end support 3022 facilitates the support of the wind turbine blade. For short blades with a center of gravity off-center from the blade root, the movable member 3021 can be lowered to the bottom of the threaded shaft 301, allowing the end support 3022 to be close to the blade root reinforcement area; for long blades, the movable member 3021 is raised to the middle support point to prevent structural bending damage.

[0047] In an optional embodiment, the support unit 3 further includes a limiting washer 304 disposed on the inner sidewall of the fixing groove, the limiting washer 304 being sleeved on the circumferential side of the threaded shaft 301. This ensures that the support member 302 is always at a preset height, reduces the height deviation of the support point, and avoids blade center of gravity mismatch and structural stress concentration caused by the displacement of the threaded shaft 301. When the blade experiences instantaneous overload due to hoisting errors, the elastic deformation characteristics of the limiting washer 304 can provide a buffer stroke, preventing structural damage caused by hard contact between the shoulder of the threaded shaft 301 and the fixing groove.

[0048] Referring to Figure 4, the transmission unit 5 includes a pulley 501 mounted on the end of the threaded shaft 301, and a transmission belt 502 movably disposed between the two pulleys 501. The pulleys 501 are mounted on the end of the threaded shaft 301 and connected by the transmission belt 502. By utilizing the tooth meshing characteristics of the synchronous belt, the height difference problem of the traditional independent drive support unit 3 is solved, and structural stress concentration caused by local overload is avoided.

[0049] Referring to Figures 1 and 5, the protective unit 1 includes a protective cover 101 with four sides surrounding it and two sides open, a sealing plate 102 disposed on the side wall of the protective cover 101, and an opening and closing handle 103 mounted on the sealing plate 102. The protective cover 101 has a bottom opening and a side wall opening, and the sealing plate 102 is disposed on the opposite side opening of the protective cover 101. The protective cover 101 adopts a four-sided surrounding structure with a bottom opening and a side wall opening, forming a three-dimensional protection for the blade to resist external collisions. The bottom opening is adapted to the installation of the support base 201 and the moving unit 2, allowing the blade support structure to be directly grounded, avoiding friction damage between the bottom of the protective cover 101 and the ground. The side wall opening allows the blade to enter and exit horizontally from the side, and with the guidance of the sliding wheel 2042 of the auxiliary component 204, the loading and unloading time of the blade is shortened. The sealing plate 102 is installed on the opposite side opening of the protective cover 101, and the opening is quickly closed and sealed by the opening and closing handle 103.

[0050] The implementation principle of this application embodiment is as follows: When it is necessary to lift and store wind turbine blades, the wind turbine blades are first placed on the end support 3022. Then, the support seat 201 is pushed into the protective cover 101, and the drive motor 303 drives the threaded shaft 301 to rotate, so that the support 302 drives the wind turbine blade to move along the threaded shaft 301 until the wind turbine blade is located below the hook 402. Then, the extension end of the hydraulic telescopic cylinder 401 extends, and after the hook 402 hooks with the wind turbine blade, the extension end of the hydraulic telescopic cylinder 401 retracts. This ensures that during the blade lifting process, the lifting mechanism and the blade lifting point are in the same vertical plane, avoiding side slippage and collision. After the wind turbine blade is stored, the sealing plate 102 can be quickly opened and closed by pulling the opening and closing handle 103, thereby ventilating the wind turbine blades inside the protective cover 101 and preventing the wind turbine blades from becoming damp and corroded.

[0051] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wind turbine blade storage fixture, characterized in that, include: The protective unit (1) is a square structure with four sides surrounding and two sides open; The moving unit (2) is disposed inside the protective unit (1) and includes a support base (201) and an auxiliary component (204) disposed on the side of the support base (201); the support unit (3) includes a threaded shaft (301) disposed on the top of the support base (201), a support component (302) disposed on the threaded shaft (301), and a drive motor (303) installed at the input end of the threaded shaft (301); the lifting unit (4) is disposed inside the top of the protective unit (1), the lifting unit (4) includes a telescopic component and a hook (402) installed at the telescopic end of the telescopic component; the transmission unit (5) is disposed at the end of the threaded shaft (301).

2. The wind turbine blade storage fixture according to claim 1, characterized in that, The support base (201) is provided with a support foot (202) at the bottom, and a self-locking universal wheel (203) is provided on the side of the support foot (202) away from the support base (201).

3. The wind turbine blade storage fixture according to claim 2, characterized in that, The auxiliary component (204) includes a U-shaped seat (2041) mounted on the side wall of the support (201) and a sliding wheel (2042) movably mounted in the U-shaped seat (2041).

4. The wind turbine blade storage fixture according to claim 3, characterized in that, The protective unit (1) has a sliding groove inside that corresponds to the U-shaped seat (2041).

5. The wind turbine blade storage fixture according to claim 1, characterized in that, The support unit (3) also includes a fixing groove for accommodating the threaded shaft (301), the fixing groove being formed on the top of the support base (201).

6. The wind turbine blade storage fixture according to claim 5, characterized in that, The support (302) includes a movable member (3021) mounted on the circumferential side of the threaded shaft (301) and an end support (3022) mounted on the top of the movable member (3021).

7. The wind turbine blade storage fixture according to claim 6, characterized in that, The support unit (3) also includes a limiting washer (304) disposed on the inner side wall of the fixing groove, and the limiting washer (304) is sleeved on the circumferential side of the threaded shaft (301).

8. The wind turbine blade storage fixture according to claim 1, characterized in that, The protective unit (1) includes a protective cover (101) with openings on two sides, a sealing plate (102) disposed on the side wall of the protective cover (101), and an opening and closing handle (103) mounted on the sealing plate (102). The protective cover (101) has a bottom opening and a side wall opening, and the sealing plate (102) is disposed on the opposite surface of the side opening of the protective cover (101).

9. The wind turbine blade storage fixture according to claim 1, characterized in that, The telescopic component includes a hydraulic telescopic cylinder (401) installed on the inner top wall of the protective unit (1), and the hook (402) is installed on the telescopic end of the hydraulic telescopic cylinder (401).

10. The wind turbine blade storage fixture according to claim 1, characterized in that, The transmission unit (5) includes a pulley (501) mounted on the end of the threaded shaft (301) and a transmission belt (502) movably disposed between the two pulleys (501).

Images