Device for connecting and stabilizing frames for storage and transport of wind turbine blades

BE1033233B1Active Publication Date: 2026-07-22CONTAINER TECHNICS NV
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Patent Information

Authority / Receiving Office
BE · BE
Patent Type
Patents
Current Assignee / Owner
CONTAINER TECHNICS NV
Filing Date
2024-12-20
Publication Date
2026-07-22

AI Technical Summary

Technical Problem

There are increased risks of damage to wind turbine blades during transport due to unstable connections, which can lead to accidents, delays, and high logistics costs, and the handling and storage of connection systems are cumbersome and inefficient.

Method used

A device with a central shaft, threaded sleeve, and locking mechanisms provides a robust and versatile connection system for wind turbine blade frames, ensuring stability and safety through adjustable lengths, secure locking, and compatibility with various frame configurations.

Benefits of technology

The device minimizes damage to blades, reduces installation time, and lowers operational costs by enabling quick adjustments to meet changing transport needs, ensuring stable and safe transport of blades even under heavy loads.

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Abstract

The present invention relates to a device for securing frames for storage and transport by means of their angular castings for the transport and storage of wind turbine blades, comprising a central shaft with two ends and a threaded sleeve. Whereby the central shaft comprises in the middle two equal split ends, the split ends being provided with an external thread on the external circumference. Whereby the central shaft comprises on the opposite side of the split ends outer ends, which are further provided with a connecting mechanism suitable for engaging with the angular casting of frames for storage and transport. Whereby the threaded sleeve is suitable for connecting the split ends of the central shaft, the threaded sleeve extending the two split ends of the central shaft and being provided with an internal thread suitable for engaging with the external thread.
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Description

2 increased risks of damage to the blades or delays in transport planning. Furthermore, there is a challenge in securely and effectively locking the connections, as loosening during transport or storage can lead to serious damage to the wind turbine blades and frames. This not only increases the risk of accidents but can also lead to loss of cargo and delays in the logistics chain. Finally, there are problems regarding the handling and storage of the connection systems, as these are often large and heavy, making it difficult to move and store them efficiently. This can lead to safety risks and increased logistics costs. SUMMARY OF THE INVENTION In a first aspect, the present invention concerns a device according to claim 115 suitable for securing storage and transport frames via their angled castings for the transport and storage of wind turbine blades. The device offers a robust, efficient and versatile solution for connecting transport frames.via angular castings, which ensures increased stability during transport and minimizes the risk of damage to wind turbine blades. The design with a central shaft, external threads and a threaded sleeve enabled simple and quick installation, while the precisely fitting connection increased safety and reliability. Thanks to the use of connection mechanisms at the outer ends, the device is compatible with various frame configurations, which increases versatility. Moreover, the device is reusable and the compact and lightweight design contributes to more efficient transport and lower operating costs, while sustainability is promoted. Preferred forms of the device are set out in conclusions 2 to 11. A second aspect concerns the present invention in a method of operation according to conclusion 1230 suitable for transporting and storing wind turbine blades. Further preferred forms of the method of operation are set out in conclusions 13 to 15. BE2024 / 5918 3 DESCRIPTION OF THE FIGURESFigure 1 shows a schematic representation of an execution form of the invention, showing the specific configuration of the central axis and the connection mechanisms. The central axis is spanned by a threaded sleeve (19), which conceals the left split end (28) and the right split end (29). This is necessary to create a strong adaptive connection that can safely connect frames for storage and transport, thereby improving the stability of the connection. At the two outer ends of the central axis are the connection mechanisms (4, 5, 6, 7), which are suitable for engaging with corner castings (24 & 25) of frames for storage and transport. The threaded sleeve (19) contains an internal thread that can engage with the external thread of the connection mechanisms, thereby creating a strong and stable connection that prevents unwanted movement or loosening during prevents use. This threaded sleeve is further limited by two locking nuts15 with respectively right-hand and left-hand thread(10,11), which with the adjusting andThe locking key(17) can be tightened or loosened. When not in use, the adjustment and locking key can be anchored to the structure with a double spring split pin(18). The threaded sleeve(19) is equipped with two cover elements(21) which are secured with bolts(22,23). To unscrew the threaded sleeve, the cover elements must first be removed. By turning the threaded sleeve with the adjustment and locking key(17), the locking bolts(16) can be aligned with the opening in the threaded sleeve, after which they can be loosened. By turning further, the locking mechanisms(8,9) can be separated from each other and the threaded sleeve(19) can be removed and replaced with a version of a suitable length. The lifting eye (12) serves to move the device safely and efficiently before and after use. The lifting eye offers significant safety benefits, such as reducing the risk of injury when moving heavy parts. In addition, it ensureslifting eye for efficient movement, which saves time and effort during the installation and dismantling of the device. The lifting eye is attached to the hinge pin (13), which is secured with a nut (14) which is anchored with a spring-type locking pin (15). The connection mechanism includes a twistlock housing (27). Both twistlock housings are used to connect the device to the corners of the stacking frames by means of corner castings. This is done by inserting the BE2024 / 5918 4 locking cone (7) into the corner castings and connecting by turning the cone via the handle (26) of the connection mechanism (3,4). Figure 2 shows another design of the device where the twistlock system(27) engages the angle casting at the bottom of the frame for transport and storage5(24) and the angle castings at the top of the frame for transport and storage(25). The locking cone(7) of the twistlock system(27) engages the angle castings(24) at the bottom of the frame for storage and transport, while the lower circular flangeThe twistlock system(27) locks the top of the frame(25). This mechanism ensures a firm connection that prevents shifting during transport10 and contributes to the overall stability of the stacked frames. The lever of the locking cone(26) is used to secure the device firmly in the angle castings(24,25). When the lever(26) is turned, it rotates the locking cone(7) and the lower circular flange. This ensures that all parts of the twistlock system(27) secure the entire construction. This offers15 extra security because the lever is mechanically locked, which prevents unwanted movement of the device during transport. Moreover, the handle is easy to operate, which makes securing and disconnecting the device quick and safe. These features contribute significantly to the overall safety and stability of the connection, especially during the transport or storage of heavy or valuable loads. Figure 3 shows the side view of a design of the device.The threaded sleeve (19) connects both connection mechanisms (3,4). The central shaft is split into a left-split end (28) and a right-split end (29). The central shaft contains adjustable elements, such as the right- and left-hand locking nuts (10, 11), which secure the threaded sleeve. Locking systems are visible at both ends, including twistlock housings (27), which enable a secure connection with the storage and transport frames. The lifting eyes (12) are also visible, indicating the ability to safely lift and move the device. Furthermore, there are twistlock systems with asymmetrical locking cones, which contribute to stability and safety during installation. Importantly, the conical shape (7) is directed upwards, so that This can click into the corner castings on the underside (24) of the overhead transport frame. If the conical shape is facing downwards, it will not form a stable connection with the stacked frames.Locking bolts (16) serve to secure the joint split ends (28,29) so that they do not come loose from the threaded sleeve (19). These bolts BE2024 / 5918 5 are shielded by the cover elements (21). This can prevent the threaded sleeve (19) from being unintentionally unscrewed from the joint split ends. DETAILED DESCRIPTION 5 The term "device" in this invention refers to a device used for connecting storage and transport frames on which wind turbine blades are mounted. 10 The term "central shaft" in this invention refers to the main component of the device, consisting of a threaded sleeve, two locking nuts at the ends of the threaded sleeves and a built-in adjustment and locking key. 15 The term "threaded sleeve" refers to the threaded sleeve of the device, the length of which can be adjusted by screwing the threaded sleeve onto the twistlock, where the locking nuts have both left-hand and right-hand threads.be loosened or tightened. The threaded sleeve can contain an internal thread and can be screwed onto the split ends of the central shaft. 20 It can also have a built-in nut at both ends and contain at least one cover element. The term "locking nuts" refers to the nuts used to lock the threaded sleeve in place. One locking nut is provided with left-hand thread and the other with right-hand thread, allowing for precise length connections of the device. The term "built-in adjustment and locking key" refers to an integrated tool connected to the locking nuts or built-in nuts of the 30 threaded sleeve to make small adjustments to the length of the device and to secure it. With this, the correct length can be locked with the locking nuts. When not in use, this tool can be attached to the structure with a double split pin. 35 The term "connection mechanism" refers to the mechanism on the outerends of the central shaft, which includes a locking mechanism. This mechanism contains an external thread to screw on the threaded sleeve BE2024 / 5918 6 and thus form a stable connection. Furthermore, this housing contains a lifting device, a hinge mechanism and a locking cone. The term "twistlock system" refers to a locking mechanism or connection mechanism that connects with corner castings of the frames for storage and transport to guarantee a secure connection. The term "lifting device" refers to a lifting device, such as a lifting eye, that is anchored in the hinge pin within the twistlock system for transport purposes. The term "corner casting" refers to the corner castings of the container frames or transport frames, which interact with the twistlock system to secure the device. The term "maximum axial alignment ratio" refers to the ratio of the axial alignment to the length of the threaded sleeve. Similarly, the term refers"maximum transverse alignment ratio" refers to the ratio of the transverse alignment to the length of the threaded sleeve. The term “DNV” refers to Det Norske Veritas and focuses primarily on offshore20 construction, shipbuilding, the oil and gas industry, renewable energy and other marine applications. DNV contain guidelines and standards that play a role in this sector to ensure safety, reliability and sustainability. In this context, a DNV certification is recognized as a quality mark. 25 The term “Eurocode” refers to a set of European standards for the design of buildings and civil infrastructure. They cover a wide range of construction types and provide calculation rules and design guidelines. The term "maximum safety strength" refers to the maximum safety strength of the installation, determined in accordance with DNV and Eurocode regulations. The installation operates by firmly connecting storage and transport frames with wind turbine blades to each other, thereby improving stability during transport.The threaded sleeve offers length adjustability, while the locking cones35 ensure quick and secure attachment to the corner castings of the frames. The method for connecting frames for storage and transport of wind turbine blade frames comprises placing the blades on the frames, checking the applicable strengths for the device, ensuring compliance with axial and transverse alignment ratios, and checking the distance between the angle castings. If the correct length is not achieved, the threaded sleeve is replaced by one of the correct length, which is locked by tightening the locking nuts using the adjustment and locking wrench. The device is then anchored to the storage and transport frames and the locking mechanisms are correctly locked in the angle castings. The built-in adjustment and locking wrench makes adjusting the device easy, while the lifting eyes and locking cones ensure safe lifting andlocking options. The use of cover elements and the simple 10-degree disassembly system make maintenance and repairs easy, which benefits the usability and durability of the device. In a first aspect, the invention concerns a device suitable for securing frames for storage and transport via their angle castings for the transport and storage of wind turbine blades, comprising a central shaft with two ends and a threaded sleeve. In a further form, the invention comprises that the central shaft in the middle comprises two split ends, where the split ends are provided with an external thread on the external circumference. In a still further form, the device comprises that the central shaft on the opposite side of the split ends comprises the outer ends, which are further provided with a connecting mechanism suitable for gripping the angle casting of frames for storage and transport. In a still further form, the invention comprises that the threaded sleeve is suitable for theconnecting the split ends of the central shaft, whereby the threaded sleeve or 25 extends the two split ends of the central shaft and is provided with an internal thread that grips the external thread. In a specific preferred configuration, the installation concerns a system that utilizes threaded sleeves. The threaded sleeve connects two split ends, ensuring a stable and secure coupling between the frames for storage and transport. The flexibility of the threaded sleeve makes it possible to meet specific project requirements. This allows the installation to be deployed in diverse situations, increasing its versatility and usability. This flexibility makes the system suitable for various applications, such as transporting wind turbine blades of different dimensions, which reduces the need for various specialized parts. This leads to lower costs and more efficient use of materials. These quick adjustments make it possible to BE2024 / 5918 8better respond to changing transport and storage needs and unforeseen circumstances. This leads to shorter lead times, fewer downtimes and lower operating costs, as well as improved planning of logistics processes. In a preferred configuration, the device is characterized by the fact that the threaded sleeve has a length of at least 1200 mm and a maximum of 3600 mm. The threaded sleeve connects two split ends of a central shaft, ensuring a stable and secure coupling between the frames for storage and transport. In a specific preferred configuration, the device is a system that uses threaded sleeves with adjustable lengths, so that the distance between frames for storage and transport can be adjusted. This system uses a threaded sleeve that can be adjusted in length. This configuration makes it possible to adapt the threaded sleeve to different distances between the frames for storage and transport, making the device flexible and versatile. The length of the threaded sleeve can, for example, vary from 1200 mm to 3600 mm.preferably between 1500mm and 3300mm, more preferably between 1800mm and 3000mm, even more preferably between 2100mm and 2700mm, and most preferably between 2400mm and 2600mm. The flexibility of the threaded sleeve makes it possible to meet specific project requirements, such as adapting to different lengths between the frames for storage and transport. This allows the system to be deployed in diverse situations, which increases versatility and usability. This flexibility makes the system suitable for various applications, such as transporting wind turbine blades of different dimensions, which reduces the need for various specialized parts. This leads to lower costs and more efficient use of materials. The ability to quickly replace or adjust the threaded sleeve significantly reduces installation time, which contributes to higher operational efficiency because less time is lost adapting to different transport configurations. These quick adjustments make it possible to better respond to changingtransport needs and unforeseen circumstances, such as variations in the dimensions of the frames for storage and transport. This leads to a shorter lead time, fewer downtimes and lower operating costs, as well as improved planning of logistical processes. In a specific preferred configuration, the arrangement involves the fact that the threaded sleeve is provided with a left-hand internal thread at one axial end and a right-hand internal thread at an opposite axial end, both of which can mesh appropriately with the external thread—a system that makes use of threaded sleeves. The threaded sleeve connects two split ends of a central shaft, where the thread of the threaded sleeve corresponds to the thread located on the external circumference of the split ends of a central shaft. This allows length adjustment to be easily realized, which contributes to the flexibility of the system. This configuration ensures that when the threaded sleeve is rotated, boththe ends can move inwards or outwards simultaneously. This allows length adjustment to be easily realized, which contributes to the flexibility of the system. This design ensures a robust and stable connection, allowing the locking mechanisms to function safely and reliably, even under heavy loads during transport. This design ensures a robust and stable connection, allowing the twistlock systems / locking mechanisms to function safely and reliably, even under heavy loads during transport. This provides a reliable solution for connecting storage and transport frames on which wind turbine blades rest. These design choices contribute to a sustainable and efficient operation of the system, even under the most challenging conditions. Thanks to this internal screw thread, the distance between the frames can be precisely adjusted, ensuring optimal alignment with the specific requirements of the transport. This ensures a stable and safe coupling between the frames forstorage and transport clarifies the compatibility and connection mechanism of the components. The flexibility of the threaded sleeve makes it possible to meet specific project requirements. This allows the device to be deployed in diverse situations, which increases versatility and usability. This flexibility makes the system suitable for various applications, such as transporting wind turbine blades of different dimensions, which reduces the need for different specialized parts. This leads to lower costs and more efficient use of materials. These rapid adjustments make it possible to better respond to changing transport needs and unforeseen circumstances. This leads to shorter lead times, fewer downtimes, and lower operating costs, as well as improved planning of logistical processes. In a specific preferred configuration, the device features a threaded sleeve at the axial ends and at the opposite axial end.attached nut. Whereby the threaded sleeve is constructed from a sleeve with an internal thread with a nut at both ends, which is preferably firmly attached to the threaded sleeve. These nuts ensure that the connection remains reliable and stable, even under heavy load. In a specific preferred design, these nuts are welded on, which provides extra strength and reliability of the connection, because the risk of loosening during transport is reduced. The presence of nuts at both ends of the threaded sleeve ensures an even distribution of forces, which increases the stability of the device and contributes to a safe connection. Welding the nuts on offers extra strength, which reduces the risk of the nuts coming loose. This results in higher reliability of the system, always during intensive transport conditions. By tightening the welded nuts at both ends of the threaded sleeve, the length adjustment can be easily adjusted.realized. When turning the threaded sleeve, both ends move in or out simultaneously, which makes it easy to adjust the length. This makes it possible to flexibly adapt the storage and transport frames to different situations and ensures an optimal configuration for every transport requirement. In a specific design, the device includes that the threaded sleeve is provided with at least one cover element suitable to provide access to the split ends. In an even further design, the cover element is secured with two bolts, and the internal bolts protect and enable controlled disassembly. In another preferred design, there are two cover elements present, both secured with two bolts, allowing for extra protection and easier access. These cover elements preferably offer an extra layer of protection against environmental factors such as dust and moisture, which can extend the service life of the internal components. By removing the cover elements,The internal bolts are easily accessible for maintenance or adjustment, which facilitates the accessibility of the internal components for installation and disassembly of the device. The cover element can optionally be manufactured from a durable material such as stainless steel or high-quality plastic to offer resistance to corrosion and wear. Furthermore, the cover element can optionally be designed to be compatible with different threaded sleeve lengths, so that it can be used in combination with different configurations of the device. This makes the system versatile and more widely applicable in various transport environments. As a result, the installation of the device, including the cover element, can be carried out faster and more reliably, resulting in lower labor costs and less downtime. These advantages make the device particularly suitable for use in the wind energy industry, where efficiency and reliability are of crucial importance. BE2024 / 5918 11 In a specific form of execution, the facility is designed in such a way that itcover elements can be easily removed when maintenance or replacement of parts is required. This ensures that the internal bolts and other fasteners are quickly accessible, making maintenance easier to perform. The ability to quickly disassemble the cover element contributes to ease of maintenance and extends the service life of the device. Another advantage of the cover elements is that they are manufactured from high-quality, durable materials such as stainless steel or high-quality plastic. These materials are not only resistant to corrosion but also offer robust protection against mechanical damage. This means that the internal components of the device remain well protected, even under harsh conditions, such as transport over rough terrain or during extreme weather conditions. In one design, the device includes a locking element that prevents the split ends from unintentionally unscrewing andthreaded sleeve. In a further section, located in the split ends of the central shaft, are two bolts that must be unscrewed to remove the threaded sleeve from the split ends of a central shaft. The internal bolts, also called locking bolts, are only intended to prevent the external thread from being unintentionally unscrewed completely from the threaded sleeve. They form a thickening at the end of the external thread, which is pressed against the internal thread so that it is unscrewed. The threaded sleeve has no direct connection with the locking bolts, but remains free. The threaded sleeve can adjust different distances using the built-in adjustment and locking key, which can unintentionally lead to the loosening of the threaded sleeve from the split ends of a central shaft. These locking mechanisms are designed to firmly connect the device to the storage and transport frames and contain robust fastening mechanisms that ensure a secure connection30between the various transport elements. This increases stability during transport and minimizes the risk of damage to the wind turbine blades. The removal of the bolts, together with the cover elements, makes it possible to disconnect the threaded sleeve from the split ends of a central shaft. The locking bolts play a supporting role in this by preventing the external thread from being unintentionally unscrewed too far, thereby maintaining the stability of the system. This careful removal and unlocking of components ensures that the BE2024 / 5918 12 system can be efficiently disassembled, while the risk of damage or unintended movement is minimal. In another embodiment, the device is equipped with the feature that two cover elements are present. These cover elements on the threaded sleeve must first be removed before further steps can be taken. In the two equally split ends of a central shaft there are two bolts thatmust be unscrewed to remove the threaded sleeve from the two identical split ends of a central shaft. The internal bolts, also called locking bolts, are solely intended to prevent the external thread from being unintentionally completely unscrewed from the threaded sleeve. They form a thickening at the end of the external thread on the identical split ends of a central shaft, which abuts the internal thread as soon as the thread is unscrewed. 15 In a preferred design, the device has a maximum safety strength that lies between 168 kN and 300 kN, according to DNV and Eurocode regulations. The device is designed as a robust system with a specified maximum safety strength, determined according to DNV and Eurocode. The term "maximum safety strength" (MSL) refers to the maximum load that can be applied for both tension and compression in the direction of the axis of the threaded sleeve. The MSL is determined with a safety factor of 1.25 to prove the load capacity, and is dependent onthe length of the threaded sleeve. In a preferred design, the maximum safety strength is 300 kN for a length between 1200 mm and 2100 mm. For a length between 2100 mm and 2400 mm, this is 290 kN, while for a length between 2400 mm and 2700 mm, the MSL is 251 kN. For lengths between 2700 mm and 3000 mm, the maximum safety strength is 218 kN, for lengths between 3000 mm and 3300 mm it is 190 kN, and for lengths greater than 3300 mm, the maximum safety strength is 168 kN. 30 The robust construction of the threaded sleeve increases resistance to mechanical stress during transport, making it more resistant to shocks and vibrations. This increases the safety of the wind turbine blades during transport, as shocks and vibrations can cause structural damage. Furthermore, the increased resistance reduces the risk of unexpected failures, which 35 leads to a safer and more reliable transport process and lower maintenance costs. BE2024 / 5918 13 In a specific design, the connection mechanism is equipped with ahinge mechanism suitable for improving the axial and transverse orientation of the frames for storage and transport relative to the card. In a further preferred version, the device is designed with a specific alignment ratio that ensures a stable and safe connection during transport. The terms "maximum axial alignment ratio" and "maximum transverse alignment ratio" refer respectively to the ratio of axial and transverse alignment relative to the length of the threaded sleeve. In a preferred version, these fall within the ranges of [0.018-0.023] for the axial alignment and [0.024-0.031] for the transverse alignment. The maximum axial alignment ratio ensures that the load is evenly distributed over the threaded sleeve, thereby preventing excessive stress concentrations. This increases the structural integrity of The devices prevent tilting or instability during storage and transport, which significantly improves safety. In addition, a properly adjusted axial contributesalignment ratio contributes to an extended system lifespan through reduction15 of dynamic load, which results in lower maintenance costs. The maximum transverse alignment ratio ensures that the device is resistant to lateral forces during transport, thereby preventing deformation or shifting of the structure. This contributes to the structural integrity and increases the safety and stability of the connection, even during sudden maneuvers or rough seas. By optimizing the transverse alignment ratio, friction between the threaded sleeve and other structural elements is also reduced, resulting in less wear, lower maintenance costs, and a longer system service life. In a specific preferred configuration, the device involves the threaded sleeve being fitted with a left-hand threaded left-hand thread at the axial end and a right-hand threaded right-hand threaded right-hand thread at the opposite axial end, where the left and right locking nuts are suitable for theto fix the threaded sleeve. These locking nuts are crucial for adjusting the distance between the frames for storage and transport, guaranteeing a firm and stable connection. The locking nuts ensure that the threaded sleeve can be reliably adjusted, offering flexibility and stability in various situations. This configuration contributes to the versatility of the 35 system and makes it suitable for a wide range of applications. The two locking nuts at the ends of the threaded sleeve ensure precise adjustments and a stable connection, which is essential to meet specific project requirements. BE2024 / 5918 14 This makes the device suitable for a wide range of applications, such as transporting wind turbine blades of different sizes. The use of locking nuts ensures a firm and secure connection, which leads to lower costs and more efficient use of materials. The locking nuts make it possible to adjust the connection quickly and easily, which significantly reduces installation time.contributes to higher operational efficiency. This ensures that the system can be deployed flexibly to better respond to changing transport needs and unforeseen circumstances. This results in shorter lead times, fewer downtimes, and lower operational costs, which contributes to improved planning of logistics processes.10 In a preferred configuration, the system is equipped with a connection mechanism that includes a hoisting device. This hoisting device makes it possible to safely move and position the system, even in confined spaces or under difficult conditions, such as during loading and unloading operations in ports or warehouses.15 The presence of the hoisting device ensures increased safety and reduces the risk of damage to the system or the wind turbine blades during transport. Moreover, the connection mechanism is compatible with standard hoisting tools, thereby increasing usability and logistics efficiency. This means that the system can be easily integrated into existing logistics processes,20without the need for specialized equipment. The use of standard lifting tools contributes to a simple and safe installation, which reduces operating costs and increases reliability. In a further preferred configuration, the device is equipped with a connection mechanism that includes a lifting eye. The lifting eye enables the user to safely lift and move the entire device. This facilitates the loading and unloading of the frames for storage and transport, which is crucial in situations where precision and safety are paramount. The use of the lifting eye ensures that the forces exerted during hoisting are evenly distributed, minimizing the risk of damage to the components. The presence of the lifting eye makes it possible to safely move the device, even in confined spaces or under difficult conditions, such as during loading and unloading operations in ports or warehouses. Furthermore, the lifting eye is compatible with standard lifting tools, ensuring usability.and logistical efficiency is increased. In a further preferred configuration, the lifting eye is screwed into the hinge pin of the connection mechanism. This integration35 ensures a robust and secure attachment, whereby the lifting device is firmly anchored to the structure of the installation. This design increases safety during lifting, because the lifting eye cannot become detached from the hinge pin. Moreover, BE2024 / 5918 15 the integration of the lifting eye into the hinge pin contributes to a more efficient use of space, making the lifting process simpler, even in confined working conditions. The integrated lifting eye ensures that the forces during lifting are effectively absorbed and distributed, which further increases the stability of the installation during transport and storage.5 In a specific preferred configuration, a lifting eye is present that is attached to the hinge pin. This hinge pin is firmly secured with a nut and anchored with a spring-type locking pin, which contributes to the stability and safety during thetransport. The device also features hinged forks and a rotating10 center housing, which together ensure increased flexibility and adaptability during use. These features make it possible to maintain the connection between frames for storage and transport, even during movements or varying loads, which is crucial for the safe and efficient movement of wind turbine blades. The lifting eyes are integrated into the hinge pins of the15 connection mechanism and are designed to facilitate the movement and installation of the device. The lifting eyes make it possible to move the device safely, even in tight spaces, which is important when loading and unloading in confined spaces such as ports or storage facilities. These lifting eyes provide a safe lifting position, allowing the device to be easily lifted and positioned20 without the need for additional lifting equipment. In an alternative design, the connection mechanisms are equipped with a twist-lock system. The twist-lock system is designed so that it can be easilyinstalled and disconnected without the need for complex tools. This ensures efficient use of the facilities and reduces the time required for assembly and disassembly, leading to lower operating costs. Furthermore, the simple installation ensures that the system can be flexibly deployed for various types of storage and transport frames, increasing versatility. Preferably, the threaded sleeve is designed to be compatible with a range of different twistlock housings, making the system versatile for use in various applications. This compatibility can be achieved through the use of standardized connections that can be easily adapted to the specific requirements of the user. An important advantage of this configuration is the increased versatility and ease of transport of the storage and transport frames. Due to the quick locking and unlocking of the twistlock housings, the assembly and disassembly of transport structures can be significantly accelerated,which saves time and costs during logistical operations. The locking cone is a BE2024 / 5918 16 key factor in the twistlock housing. This cone engages in the corner castings of the frames for storage and transport and ensures a firm and secure connection. The twistlock housings contain locking cones that fit precisely into the corner castings and are subsequently locked using side housings, resulting in a stable and reliable connection. Thanks to this locking cone, the twistlock housing can firmly secure itself in the corner castings, significantly reducing the risk of shifting or loosening during transport. This is especially important during long distances or transport over rough roads or water, where vibrations and shocks occur constantly. This system engages in corner castings of the frames for storage and transport, allowing the device to quickly can be securely coupled without additional fasteners. The twist-lock system offers a firm locking mechanism in both horizontal and vertical directions.direction, which prevents shifting of the load during transport. The use of the locking cone and hinge mechanism ensures that the connection remains stable, even under heavy loads and during transport, which significantly increases load safety. The hoisting device makes it possible to move the unit safely and easily, which increases efficiency during loading and unloading and minimizes the risk of damage. The design of the twistlock housing ensures that the system can be quickly coupled and uncoupled without special tools, which leads to faster installation and disassembly and thus lower operating costs. The twistlock housings enable safe stacking of frames for storage and transport, ensuring that frames remain firmly on top of each other during transport, which contributes to a stable and safe load, especially over long transport distances. Twistlock housings are easy to operate, which risk of errors during assembly is reduced, which the reliability of the 25mounting height ensures that the connection is executed correctly. The secure fastening of twistlock housings offers additional protection against unwanted movements, even when transport takes place over uneven terrain, thereby preventing damage to both the storage and transport frames and the wind turbine blades. In a preferred design, the invention concerns a device with a twistlock system mounted on an angle casting of the storage and transport frames, whereby this system offers a stable and secure connection. This connection prevents the frames from shifting during transport and provides anchoring both within and between the stacks. The twistlock system is preferably designed to facilitate seamless integration with the angle castings of the storage and transport frames, using locking cones that fit precisely into the angle castings. Preferably, the locking cones are manufactured from a high-quality, durable material that is resistant to the forces that occur. BE2024 / 5918 17during transport. Preferably, a material is chosen that is both corrosion-resistant and wear-resistant, thereby extending the service life of the twistlock system. In a further preferred version, the twistlock system can be equipped with a mechanism that automatically locks when the cones are placed in the angle castings, which further increases user-friendliness and safety. This system is ideal for transport applications where efficiency and safety are of great importance, such as the transport of large wind turbine blades over long distances. Preferably, the threaded sleeve is designed to be compatible with a range of different twistlock housings, making the system versatile for use in various applications. This compatibility can be achieved by using standardized connections that can be easily adapted to the specific requirements of the user. The hinge mechanism in the connection mechanism consists of a movableHinged forks and a hinge pin ensure that the twistlock housing adapts to an incorrect orientation of the angle castings of the frames for storage and transport relative to each other. The hinged function makes it possible to maintain a certain degree of flexibility, so that the connection can move during transport without excessive stress on the components. In addition, correct transverse and axial alignment ensure an optimal distribution of forces on the connection. Axial alignment helps prevent tilting of the frames, while transverse alignment ensures that no lateral shifts occur. This contributes to the overall stability and safety of the load during transport. This mechanism contributes to increased robustness of the entire connection, as it can absorb movements and vibrations during transport. In a preferred version, the device includes a built-in adjustment and locking key; the built-in adjustment and locking key is suitable for theengaging the left and right locking nuts, and is also suitable for engaging the attached nut of the threaded sleeve. This makes it possible to easily tighten or loosen the locking nuts, ensuring precise adjustment and secure locking of the threaded sleeve. As a result, the installation and disconnection of the device is carried out more efficiently and safely. Another notable feature of the device is the use of an adjustment and locking key, which not only serves to anchor the threaded sleeve, BE2024 / 5918 18 but can also be anchored to the structure when not in use. This prevents loss or damage to the key and ensures that the key is always within reach when needed. The key can be anchored to the connection mechanism in a specific preferred form—this is with a double spring split pin—which offers an extra layer of security and further enhances operational efficiency. increases. This key increases precision during installation, resulting in tightand secure connections, and thus contributes to the stability of the entire structure. The integrated design contributes to reduced workloads and increased efficiency, requiring less time and effort for the installation and maintenance of the device. This significantly reduces the time required for installing or removing the device, which contributes to higher operational efficiency. By integrating the key into the device, the use of external tools becomes unnecessary. This design ensures that the threaded sleeve can be adjusted flexibly and is firmly locked once the desired length is reached, which is essential for a safe and stable connection. These flexibilities and firm locking ensure increased stability during transport, minimizing the risks of shifting or loosening of the frames. In a preferred design, the device concerns the fact that the built-in adjustment and locking key is suitable for being secured on the connection mechanism.In a second aspect, the invention concerns the method for connecting storage and transport frames for wind turbine blades by means of a device, a device comprising a central shaft with two split ends in the middle, with a threaded sleeve connecting the two split ends and a connecting mechanism; at least two storage and transport frames with an angled casting, where the storage and transport frames are positioned at a distance from each other; where the method comprises the following steps: placing a wind turbine blade on the storage and transport frame, determining the distance between the storage and transport frames, where the distance is defined as the space between two angled castings of the storage and transport frames; determining whether the distance can be bridged by the device, checking whether the distance lies within a suitable margin to be bridged safely and effectively; The threaded sleeve includes an internal left one at the axial endthreads and an internal thread at the opposite axial end BE2024 / 5918 19, the left and right internal threads are suitable for an external thread located on the external circumference of the connecting mechanism; the threaded sleeve is unscrewed from the connecting mechanism if a margin on the distance is exceeded, a new threaded sleeve that is within the margin on the distance is subsequently screwed on; 5 securing the new threaded sleeve with the aid of at least one locking nut at the axial end of the threaded sleeve; the connecting mechanism engages with the corner castings of the storage and transport frames whereby the device forms an x-connection index-direction between the two corner castings; 10 a third corner casting of a third storage and transport frame is stacked in the y-direction on the storage and transport frame; the third corner casting engages with the connecting mechanism and thus forms a Y-connection in the Y-direction between the transport frame and the third transport frame;15The connection mechanisms comprise a lever where a locking cone, which is part of the connection mechanism, will ensure the Y-X connection. First, the wind turbine blades are carefully placed on the frames for storage and transport. This is done in such a way that an optimal balance is achieved and a stable base is created for transport. Accurate alignment of the blades is essential here to prevent them from shifting or being damaged during transport. Accurate alignment includes both transverse and axial alignment. Transverse alignment means that the blades are properly aligned along the length of the frame to ensure an even distribution of weight and to prevent the load from shifting sideways during transport. Axial alignment means that the blades are positioned correctly in terms of height, so that the load remains stable and axial forces are properly absorbed. Both alignments are essential for ensuring stability and minimizing tilting movements duringtransport. After positioning the wind turbine blades, it is checked whether the strength of both the storage and transport frames and the equipment is sufficient to bear the specific load. It is also checked whether the maximum transverse and axial alignment ratio has been achieved to prevent structural instability. Next, the distance between the corner castings of the storage and transport frames is measured. It is important that this distance corresponds to the length of the threaded sleeve. If the correct distance is not achieved, the BE2024 / 5918 20 threaded sleeve must be replaced by a threaded sleeve of the correct length. The threaded sleeve plays a crucial role in the stability of the entire structure, as it connects the two connection mechanisms and ensures a firm coupling between the storage and transport frames. 5 The threaded sleeve of the device is variable in size and can be adapted to different project requirements, which increases the versatility of the system. This makes the device suitable for a wide range of applications, such as thetransporting wind turbine blades of different dimensions. In one design, the threaded sleeve is a system with adjustable lengths, so that the distance between frames for storage and transport can be changed. The length of the threaded sleeve can vary from 1200 mm to 3600 mm, with further refinement within this range to meet specific needs. This flexibility makes the system suitable for various applications and reduces the need for specialized parts, which leads to lower costs and a more efficient use of materials. In one design form, the method involves the threaded sleeve comprising at least one cover element and that the cover element must be removed to unscrew the threaded sleeve. 20 In a specific form, the method comprises the ratio of an alignment in an axial direction to the length of the threaded sleeve, which is in the following range [0.018 -0.023] and that the ratio of the alignment in a transverse direction to the length of the threaded sleeve, which is in the following range [0.024 -0.031].In a further version, the procedure includes that a built-in adjustment and locking wrench is suitable for working on both the threaded sleeve and the new threaded sleeve, as well as on the locking nut. The threaded sleeve is then anchored by tightening the locking nuts using a built-in adjustment and locking wrench. This wrench ensures controlled tightening of the locking nuts, guaranteeing a firm connection without risk of loosening. The described method ensures an accurate and safe connection of frames for storage and transport of wind turbine blades. By applying this procedure, stability and safety during transport are guaranteed, and the risk of damage to the wind turbine blades is reduced to a minimum, even during long transport distances or challenging transport conditions. This approach leads to a more efficient transport process with lower operating costs and improved logistics planning. Unless otherwise defined, all terms used in the description haveof the invention, including technical and scientific terms, the meaning as they are generally understood by the specialist in the technical field of the invention. For a better assessment of the description of the invention, the following terms are explicitly explained. When “approximately” or “around” is used in this document for a measurable quantity, a parameter, a duration or moment, and the like, variations are meant of + / - 20% or less, preferably + / - 10% or less, more preferably + / - 5% or less, even more preferably + / - 1% or less, and even more preferably + / - 0.1% or less than the quoted value, insofar as such variations apply to the described invention. However, it must be understood that the value of the quantity for which the term “approximately” or “around” is used is itself specifically disclosed. The citation of numerical intervals by the endpoints encompasses all integers, fractions and / or real numbers between the endpoints, including these endpoints.20 In a first aspect, the invention concerns EXAMPLES 25The current invention will now be further explained by means of the following examples. The invention is in no way limited to the given examples or to the implementation forms presented in the figures. Example 1.30 A test was carried out with a device in which the threaded sleeve had a length of 2400 mm, with left and right internal threads at the other end respectively. The device was used to connect frames for storage and transport of wind turbine blades. The twistlock system ensured a fast and secure connection to the corner castings of the frames. Installation was faster than expected due to the integrated adjustment and locking key, which significantly increased ease of use. BE2024 / 5918 22 Example 2. In another test setup, the device was tested with a 3600 mm threaded sleeve. The locking nuts were tightened firmly using the built-in wrench. Thanks to the locking cones in the twistlock housings, an improvedachieved fastening stability, which resulted in increased safety during the transport of the wind turbine blades. Example 3. A further test involved the use of the device with a 1200 mm threaded sleeve. The threaded sleeve was equipped with a cover element that could be quickly removed, allowing for faster installation. This cover element protected the internal bolts, which increased the reliability of the installation. Example 4. The device was tested in a scenario where the storage and transport frames were subject to varying loads. The rotating center housings and hinged forks provided the necessary flexibility, ensuring the connection remained robust. This demonstrated the adaptive structural flexibility of the device. Example 5. In a final experiment, the device was subjected to a maximum load of 300 kN. The test showed that the device met the safety standards according to DNV and Eurocode, which increased the reliability and acceptance of the system in the industry.It is assumed that the present invention is not limited to any previously described 25 forms of manufacture, but it is clear that some modifications can be made to the presented example of manufacture without prejudice to the attached claims. For example, the present invention is described with reference to a specific length of the threaded sleeve or, but it is clear that the invention can be applied to different lengths of the threaded sleeve or for different 30 transport frame co

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