A marine hydraulic clamp type horizontal single blade sling

Abstract

The present application relates to a kind of offshore hydraulic clamping type horizontal single-blade lifting appliance.It includes platform device and clamping device installed at its both ends;Platform device includes platform frame, and hoisting device with left and right and front and back swing driving function is installed in the middle of platform frame, and hoisting device is connected with lifting equipment through sling cable;Clamping device includes longitudinal beam, top crossbeam is installed at the top end of longitudinal beam, bottom crossbeam is installed at the bottom end, top crossbeam is detachably connected with platform device, controllable deflection hydraulic pressure holds subassembly is installed in the middle of longitudinal beam, support seat is installed in the middle of bottom crossbeam, support subassembly is installed in the top of support seat, wind power blade is located between hydraulic pressure holds subassembly and support subassembly, limiting subassembly for limiting wind power blade is installed in the middle and lower part of longitudinal beam.The present application provides a kind of offshore hydraulic clamping type horizontal single-blade lifting appliance, improves construction stability and safety, improves construction efficiency.

Description

Technical Field

[0001] This invention belongs to the technical field of wind power construction equipment, and particularly relates to a marine hydraulic clamping horizontal single-blade lifting device. Background Technology

[0002] With technological advancements and increasing demand for clean energy, wind power technology has made significant progress. Wind power generation refers to the conversion of wind energy into electrical energy using wind turbine facilities. These facilities typically include a wind turbine tower, wind turbine blades, and a generator set. The construction methods for onshore and offshore wind power facilities are basically the same: first, a support base is constructed; then, the tower is installed on the support base; next, the generator set is installed on top of the tower; and finally, the blades are installed on the generator set. Wind turbine blades are relatively long and irregularly shaped, posing challenges in their transfer, transportation, and installation. How to ensure stable and reliable transportation and installation of the blades is a key focus of research and development in the industry.

[0003] In offshore wind power equipment installation scenarios, the strong winds and waves experienced by construction vessels, along with the significant wind impact on the wind turbine blades themselves during hoisting and installation, place high demands on hoisting techniques and auxiliary facilities. Existing wind turbine blade lifting tools, limited by structural design deficiencies, struggle to stably lift and secure the blades, resulting in insufficient stability during installation, impacting both efficiency and safety. Therefore, targeted development and design based on industry needs are necessary. Summary of the Invention

[0004] This invention provides a marine hydraulic clamping horizontal single-blade spreader that improves construction stability and safety and increases construction efficiency in order to solve the technical problems existing in the prior art.

[0005] The technical solution adopted by this invention to solve the technical problems existing in the prior art is as follows: a marine hydraulic clamping horizontal single-blade spreader, including a platform device and clamping devices installed at both ends thereon; the platform device includes a platform frame, and a sling device with left-right and forward-backward swing drive function is installed in the middle of the platform frame, the sling device being connected to the lifting equipment via a sling cable; the clamping device includes a longitudinal beam, a top crossbeam is installed at the top of the longitudinal beam and a bottom crossbeam is installed at the bottom, the top crossbeam is detachably connected to the platform device, a controllable deflection hydraulic clamping assembly is installed in the middle of the longitudinal beam, a support seat is installed in the middle of the bottom crossbeam, a support assembly is installed on the top of the support seat, the wind turbine blade is located between the hydraulic clamping assembly and the support assembly, and a limiting assembly for limiting the movement of the wind turbine blade is installed in the lower middle part of the longitudinal beam.

[0006] Preferably, the suspension device includes a suspension beam, two bottom connecting beams are installed on the lower middle part of the platform frame of the platform device, and a beam support arm is provided at each end of the suspension beam, with the lower ends of the two beam supports hinged to the middle of the two bottom connecting beams; a suspension longitudinal beam is hingedly installed in the middle of the suspension beam, a front and rear swing arm hydraulic cylinder is installed between the platform frame and the suspension beam, and a left and right swing arm hydraulic cylinder is installed between the outer end of the suspension beam and the upper end of the suspension longitudinal beam.

[0007] Preferably, the longitudinal beam includes an upper longitudinal beam and a lower longitudinal beam, with the lower end of the upper longitudinal beam being connected to the upper end of the lower longitudinal beam.

[0008] Preferably, the hydraulic holding assembly includes a swing arm beam that is hinged to the lower end of the upper longitudinal beam at its rear end, a swing arm hydraulic cylinder is installed between the middle of the swing arm beam and the root of the top beam, and a holding assembly is installed below the front end of the swing arm beam.

[0009] Preferably, the holding assembly includes a holding base fixed to the swing arm beam, a pressure plate with a pressure plate pad at the bottom is provided below the holding base, a guide assembly is provided between the holding base and the pressure plate, the guide sleeve of the guide assembly is fixedly connected to the holding base, the guide rod is fixedly connected to the pressure plate, and a tension spring is also provided between the holding base and the pressure plate.

[0010] Preferably, a locking assembly is also installed between the top crossbeam and the swing arm crossbeam. The locking assembly includes a locking strut hinged at the top end to the bottom of the middle part of the top crossbeam and a locking hydraulic cylinder hinged on the swing arm crossbeam. The piston rod end of the locking hydraulic cylinder is hinged to the lower end of the locking strut.

[0011] Preferably, the support assembly includes a conformal vertical plate mounted on a support base, a plurality of support crossbars mounted on the top of the conformal vertical plate, and a support pad layer mounted on the support surface formed by the support crossbars.

[0012] Preferably, the limiting assembly includes guide sleeves installed on both sides of the lower longitudinal beam, a limiting crossbar is provided inside the guide sleeve, a limiting vertical plate is installed at the front end of the limiting crossbar, and an adhesive strip is installed at the front of the limiting vertical plate.

[0013] Preferably, a counterweight platform is installed at the front of both ends of the platform device, and a counterweight block is installed on the counterweight platform.

[0014] Preferably, a generator, control cabinet, and hydraulic station are installed on the platform device, and cable wind devices are installed on both counterweight platforms.

[0015] The advantages and positive effects of this invention are:

[0016] This invention provides a reasonably designed offshore hydraulic clamping horizontal single-blade lifting device. Compared with existing wind turbine blade auxiliary installation lifting equipment, the single-blade lifting device of this invention has a hanging device with left-right and forward-backward swing drive function installed in the middle of the platform device above it. During the lifting construction of the single blade, the left-right and forward-backward swing drive function provided by the hanging device can drive the single blade to swing left-right and forward-backward, so as to adaptively adjust the attitude of the single blade according to the lifting and installation requirements. Therefore, the relative position between the single blade and the wind turbine body is more accurate, improving construction efficiency and ensuring the construction effect of lifting and installation.

[0017] By setting up two clamping devices on the left and right, a two-point clamping and fixing of the wind turbine blades is achieved. The support base and support components set on the bottom crossbeam of the clamping device, as well as the hydraulic pressing component set in the middle, clamp and fix the wind turbine blades. In conjunction with the limiting component installed at the bottom of the longitudinal beam, the stability is strong during the hoisting and movement of the wind turbine blades and their installation into the main body of the wind turbine, which improves the construction stability and efficiency in offshore wind power construction scenarios, and significantly enhances the safety of construction. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the structure of the present invention;

[0019] Figure 2 This is a schematic diagram of the platform device in this invention;

[0020] Figure 3 This is a schematic diagram of the clamping device in this invention.

[0021] In the picture:

[0022] 1. Platform assembly; 1-1. Platform frame; 1-2. Bottom connecting beam; 2. Clamping device; 2-1. Assembly pin; 2-2. Top crossbeam; 2-3. Assembly base; 2-4. Support; 2-5. Locking strut; 2-6. Locking hydraulic cylinder; 2-7. Swing arm crossbeam; 2-8. Pressing base; 2-9. Pressure plate; 2-10. Pressure plate pad; 2-11. Guide assembly; 2-12. Tension spring; 2-13. Upper longitudinal beam; 2-14. Swing arm hydraulic cylinder; 2-15. Ladder guardrail; 2-16. Ladder; 2-17. Lower longitudinal beam; 2-1 8. Side support; 2-19. Reinforcing triangular plate; 2-20. Limiting component; 2-21. Support pad; 2-22. Support crossbar; 2-23. Bottom crossbeam; 2-24. Support seat; 3. Connecting crossbeam; 4. Cable wind device; 5. Cable guide assembly; 6. Generator; 7. Suspension assembly; 7-1. Connecting block; 7-2. Suspension longitudinal beam; 7-3. Left and right swing arm hydraulic cylinders; 7-4. Front and rear swing arm hydraulic cylinders; 7-5. Crossbeam support arm; 7-6. Suspension crossbeam; 8. Suspension cable; 9. Control cabinet; 10. Hydraulic station; 11. Counterweight platform; 12. Counterweight block. Detailed Implementation

[0023] To further understand the invention's content, features, and effects, the following embodiments are provided for detailed explanation.

[0024] Please see Figure 1 The present invention relates to a marine hydraulic clamping horizontal single-blade spreader, comprising a platform assembly 1 and clamping devices 2 mounted at both ends thereof. The platform assembly 1 serves as a base platform and as the mounting base for the two clamping devices 2, and should possess sufficient structural strength. The auxiliary facilities of this single-blade spreader are also mounted on the platform assembly 1. As shown in the figure, the auxiliary facilities include a generator 6, a control cabinet 9, and a hydraulic station 10 mounted on the platform assembly 1. The generator 6 generates electricity, the control cabinet 9 provides electrical control for the entire spreader, and the hydraulic station 10 provides hydraulic drive for the hydraulic components of the spreader.

[0025] When in use, the platform device 1 of this lifting device is lifted and moved by the lifting equipment (referring to the wind power construction vessel) at the construction site. The wind turbine blades are clamped and fixed by two clamping devices 2 on the left and right. During the lifting and installation, the wind turbine blades are installed on the main body of the wind turbine in a horizontal position.

[0026] Please see Figure 2 The specific structure of platform device 1 can be seen from this:

[0027] The platform device 1 includes a platform frame 1-1, and a hanging device 7 with left-right and forward-backward swing drive function is installed in the middle of the platform frame 1-1. The hanging device 7 is connected to the lifting equipment through a lifting cable 8.

[0028] The platform frame 1-1 is constructed from welded I-beam profiles and has an overall rectangular shape. A metal mesh is laid on the surface of the platform frame 1-1, forming a support surface for construction workers to step on. To improve worker safety, safety railings can be installed around the platform frame 1-1. As shown in the diagram, the generator 6 is installed on the left side of the platform device 1, and the control cabinet 9 and hydraulic station 10 are installed on the right side of the platform device 1. The installation of these facilities on the platform device 1 must consider balance requirements.

[0029] The suspension device 7, which has left-right and forward-backward swing drive functions, is used to moderately adjust the attitude of the wind turbine blade during the suspension and installation process, so as to adjust the relative positional relationship between the blade and the main body of the generator.

[0030] In this embodiment, the suspension device 7 includes a suspension beam 7-6. Two bottom connecting beams 1-2 are installed on the lower middle part of the platform frame 1-1. The two ends of the bottom connecting beams 1-2 are welded and fixed to the front and rear frames of the platform frame 1-1, respectively, to ensure structural strength. Each end of the suspension beam 7-6 is provided with a beam support arm 7-5, and the lower ends of the two beam support arms 7-5 are hinged to the middle of the two bottom connecting beams 1-2.

[0031] A suspension longitudinal beam 7-2 is hinged to the middle of the suspension crossbeam 7-6. Front and rear swing arm hydraulic cylinders 7-4 are installed between the platform frame 1-1 and the suspension crossbeam 7-6. Left and right swing arm hydraulic cylinders 7-3 are installed between the outer end of the suspension crossbeam 7-6 and the upper end of the suspension longitudinal beam 7-2. As shown in the figure, there are two front and rear swing arm hydraulic cylinders 7-4, one on the left and one on the right. By controlling the extension and retraction of the piston rods of the two front and rear swing arm hydraulic cylinders 7-4, the main body of the suspension device 7 can swing forward or backward relative to the platform device 1, thus controlling the forward or backward swing of the wind turbine blades. By controlling the extension and retraction of the piston rods of the left and right swing arm hydraulic cylinders 7-3, the angle between the suspension crossbeam 7-6 and the suspension longitudinal beam 7-2 can be increased or decreased, correspondingly causing the platform device 1 to swing left or right, thus controlling the left or right swing of the wind turbine blades and adjusting the attitude of a single blade.

[0032] In this embodiment, a connecting block 7-1 is hinged to the top of the hanging longitudinal beam 7-2, and a shackle is hinged to the upper end of the connecting block 7-1. The lower end of the lifting cable 8 is connected to the shackle. The hinge axis between the connecting block 7-1 and the hanging longitudinal beam 7-2 is perpendicular to the hinge axis between the connecting block 7-1 and the shackle. Thus, during hoisting and installation, there are two degrees of freedom, front-back and left-right, between the lifting cable 8 and the top of the hanging device 7.

[0033] Considering that in offshore wind power construction scenarios, strong sea winds can cause the lifting device and wind turbine blades to move uncontrollably, making it difficult to control their attitude, this embodiment includes a counterweight device and a cable wind device 4 for the lifting device. Figure 2 As shown, the counterweight device includes counterweight platforms 11 installed at the front of both ends of the platform device 1. Counterweight blocks 12 are installed on the counterweight platforms 11. The counterweight devices on both sides provide counterweight at both ends of the lifting device, improving the front-to-back balance. Simultaneously, two guy wire devices 4 are installed on the left and right counterweight platforms 11 respectively, also taking into account the left-to-right balance of the lifting device. To improve the safety of construction personnel, safety railings are installed around the counterweight platforms 11.

[0034] There are two cable wind machines 4, one on the left and one on the right, forming a blade root cable wind machine and a blade tip cable wind machine respectively. The cable wind machine 4 has a steel cable wound and unwound by a winch. The steel cable passes through the cable guide assembly 5. During the hoisting and installation of the wind turbine blade, the steel cable of the cable wind machine 4 is connected at a specific position. When encountering wind resistance and making it difficult to move the wind turbine blade, or when the stability deteriorates due to wind resistance, the cable wind machine 4 is activated to wind and unwound the steel cable, applying tension to the hoisting device and the wind turbine blade.

[0035] Please see Figure 3 It can be seen that:

[0036] The clamping device 2 includes a longitudinal beam, with a top crossbeam 2-2 installed at the top and a bottom crossbeam 2-23 installed at the bottom. The top crossbeam 2-2 is detachably connected to the platform device 1, allowing the two clamping devices 2 to be removed from the platform device 1 for easy transport by engineering vehicles. Upon arrival at the destination, they can be quickly reassembled to form a complete lifting device. Furthermore, the longitudinal beam includes an upper longitudinal beam 2-13 and a lower longitudinal beam 2-17, with the lower end of the upper longitudinal beam 2-13 and the upper end of the lower longitudinal beam 2-17 connected by strong bolts. This allows the clamping device 2 to be further divided into upper and lower parts, further improving transportation convenience.

[0037] The rear end of the top crossbeam 2-2 is welded and fixed to the upper end of the upper longitudinal beam 2-13, and the rear end of the bottom crossbeam 2-23 is welded and fixed to the lower end of the lower longitudinal beam 2-17. In order to improve the structural strength, reinforcing triangular plates 2-19 are provided between the rear end of the top crossbeam 2-2 and the upper end of the upper longitudinal beam 2-13, and between the rear end of the bottom crossbeam 2-23 and the lower end of the lower longitudinal beam 2-17. The reinforcing triangular plates 2-19 are welded and fixed to each beam.

[0038] like Figure 3As shown, two sets of assembly bases 2-3 are provided on the top crossbeam 2-2. Each set of assembly bases 2-3 includes two opposing base plates with pin holes. Pin holes are provided at corresponding positions on the left and right end beams of the platform device 1. When the clamping device 2 is assembled and installed on the platform device 1, the end beam of the platform device 1 is lowered between the two base plates of each set of assembly bases 2-3. After aligning the pin holes, the assembly pin 2-1 is inserted to complete the assembly between the clamping device 2 and the platform device 1.

[0039] As shown in the figure, a support 2-4 is installed on the top of the upper longitudinal beam 2-13. The aforementioned cable guide assembly 5 is fixed on the support 2-4. The steel cable released by the cable winder 4 extends from front to back and passes through the aforementioned cable guide assembly 5. The cable guide assembly 5 includes a cable guide frame, in which two guide rollers are installed on the left and right sides. The steel cable passes through the seal between the two guide rollers.

[0040] A controllable deflection hydraulic clamping assembly is installed in the middle of the longitudinal beam. A support seat 2-24 is installed in the middle of the bottom crossbeam, and a support assembly is installed on top of the support seat 2-24. The wind turbine blade is located between the hydraulic clamping assembly and the support assembly. A limiting assembly 2-20 for limiting the movement of the wind turbine blade is installed in the lower middle part of the longitudinal beam. During construction, the root part of the wind turbine blade is clamped and fixed by the hydraulic clamping assembly and support assembly of one side clamping device 2, and the tip part is clamped and fixed by the hydraulic clamping assembly and support assembly of the other side clamping device 2. The limiting assembly 2-20 is used to limit the movement of the root and tip parts. Therefore, the wind turbine blade at each position is limited and fixed by the hydraulic clamping assembly, the support assembly, and the limiting assembly 2-20.

[0041] As shown in the figure, the hydraulic holding assembly includes a swing arm beam 2-7 hinged to the lower end of the upper longitudinal beam 2-13 at its rear end. A swing arm hydraulic cylinder 2-14 is installed between the middle of the swing arm beam 2-7 and the root of the top beam 2-2. A holding assembly is installed below the front end of the swing arm beam 2-7. Two swing arm hydraulic cylinders 2-14 are provided, one on the left and one on the right, to ensure balance when applying push-pull action. By controlling the synchronous extension and retraction of the piston rods of the two swing arm hydraulic cylinders 2-14, the swing arm beam 2-7 and its holding assembly can be driven to swing downwards to hold the blades, or swing upwards to release the blades.

[0042] The holding assembly includes a holding base 2-8 fixed to the swing arm beam 2-7, a pressure plate 2-9 with a pressure plate pad 2-10 at the bottom below the holding base 2-8, a guide assembly 2-11 between the holding base 2-8 and the pressure plate 2-9, the guide sleeve of the guide assembly 2-11 is fixedly connected to the holding base 2-8, the guide rod is fixedly connected to the pressure plate 2-9, and a tension spring 2-12 is also provided between the holding base 2-8 and the pressure plate 2-9.

[0043] The pressure plate pad 2-10 is made of rubber to prevent the pressure plate 2-9 from directly contacting the blade and causing excessive pressure, thus providing some protection for the blade and improving the tightness of the connection between the pressure plate 2-9 and the blade. Because of the guide assembly 2-11 and multiple tension springs 2-12, the pressure plate 2-9 and its pressure plate pad 2-10 are floatingly mounted on the holding base 2-8. This floating installation structure prevents the holding assembly from directly impacting the blade when the swing arm beam 2-7 swings and the holding assembly acts on the blade, providing some protection. As the swing arm beam 2-7 swings and the holding assembly slowly presses against the blade, the pressure between the holding assembly and the blade gradually builds up.

[0044] A locking assembly is also installed between the top crossbeam 2-2 and the swing arm crossbeam 2-7. This locking assembly is used to lock the blade after the hydraulic clamping assembly has fully clamped it onto the blade, preventing blade loosening, displacement, or even detachment in extreme cases where the hydraulic clamping assembly cannot reliably clamp the blade. In this embodiment, the locking assembly includes a locking strut 2-5, the upper end of which is hinged to the bottom of the middle section of the top crossbeam 2-2, and a locking hydraulic cylinder 2-6 hinged to the swing arm crossbeam 2-7. The piston rod end of the locking hydraulic cylinder 2-6 is hinged to the lower end of the locking strut 2-5. When the swing arm crossbeam 2-7 swings upward, the piston rod of the locking hydraulic cylinder 2-6 extends adaptively, and the lower end of the locking strut 2-5 swings forward. Conversely, when the swing arm crossbeam 2-7 swings downward, the piston rod of the locking hydraulic cylinder 2-6 retracts adaptively, and the lower end of the locking strut 2-5 swings backward. Figure 3 When the position shown is such that the locking strut 2-5 is located between the top crossbeam 2-2 and the swing arm crossbeam 2-7, even if the swing arm hydraulic cylinder 2-14 and / or the locking hydraulic cylinder 2-6 fail, the locking strut 2-5 can still stabilize the top crossbeam 2-2 and its accessories in the pressing position shown in the figure, effectively preventing loosening and improving the construction safety of the lifting equipment.

[0045] The support assembly includes a conformal vertical plate mounted on a support base 2-24. Multiple support crossbars 2-22 are mounted on the top of the conformal vertical plate. A support pad 2-21 is mounted on the support surface formed by the support crossbars 2-22. The support pad 2-21 is a rubber pad, which is used to prevent the hard pressure caused by direct contact between the support crossbars 2-22 and the blade, and provides a certain degree of protection for the blade. At the same time, it can improve the tightness of the connection between the support crossbars 2-22 and the blade.

[0046] A conformal vertical plate refers to a vertical plate whose top edge contour is designed to adapt to the bottom contour of the blade root / tip it contacts. Multiple support crossbars 2-22 are installed and fixed on the top edge of the conformal vertical plate. In this way, the contour shape of the support surface formed by the multiple support crossbars 2-22 is adapted to the bottom contour of the contacting blade root / tip. This can significantly improve the tightness of the connection between the blade root / tip and the support component, and improve the stability of hoisting and installation.

[0047] The limiting assembly 2-20 includes guide sleeves installed on both sides of the lower longitudinal beam 2-17. A limiting crossbar is provided inside the guide sleeve, and a limiting vertical plate is installed at the front end of the limiting crossbar. A rubber strip is installed at the front of the limiting vertical plate. Furthermore, a radially penetrating threaded hole is provided on the side wall of the guide sleeve, and a fastening screw is installed in the threaded hole. When the limiting crossbar moves to the appropriate position, the fastening screws are tightened to fix the limiting crossbar. During the hoisting and installation of the blade, the rear edge of the blade root / tip abuts against the rubber strip of the limiting assembly 2-20 to prevent the blade root / tip from shifting backward. The flexible rubber strip abuts against the outer wall of the blade, preventing damage caused by hard pressure.

[0048] In this embodiment, a side bracket 2-18 is installed on the lower outer side of the lower longitudinal beam 2-17. The side bracket 2-18 is used to ensure that the lower part of the clamping device 2 stands stably on the ground when assembling the clamping device 2, which facilitates the assembly of the upper part. After assembly, the side bracket 2-18 can be disassembled.

[0049] In this embodiment, in order to further improve the overall structural strength of the lifting device, a connecting beam 3 is installed between the roots of the bottom crossbeams 2-23 of the two clamping devices 2, and the connecting beam 3 connects the bottoms of the two clamping devices 2 into a whole.

[0050] In this embodiment, a ladder 2-16 is installed on the outside of the longitudinal beam for construction workers to climb up and down. To improve safety, safety railings 2-15 are installed on the outside of the upper longitudinal beam 2-13 and the rear of the top crossbeam 2-2.

[0051] The forward and backward swing hydraulic cylinder 7-4, the left and right swing hydraulic cylinder 7-3, and the swing arm hydraulic cylinder 2-14 and locking hydraulic cylinder 2-6 of the two holding devices 2 are connected to the hydraulic station 10. The generator 6, the hydraulic station 10, and the winches of the two cable wind devices 4 are all connected to the control cabinet 9. The control cabinet 9 also includes a wireless communication module, allowing on-site construction personnel to operate the lifting device using a handheld remote control. The controller inside the control cabinet 9 is wirelessly connected to the remote control. This remote control operation improves operational flexibility and enhances personnel safety.

[0052] Assembly and construction methods:

[0053] The lifting device was transported to the site in disassembled form. The lower parts of the two clamping devices 2 were placed upright on the ground, and the side brackets 2-18 prevented the lower parts from tipping over. Then, a crane was used to lift the upper part of the clamping device 2 and move it above the lower part. The lower end of the upper longitudinal beam 2-13 was connected to the upper end of the lower longitudinal beam 2-17 using strong bolts. Then, the platform device 1 and its accessories were lifted by a crane to the top of the two clamping devices 2. The top crossbeam 2-2 was fixedly connected to the end beam of the platform device 1 using pins, thus completing the on-site assembly of the lifting device.

[0054] This single-blade lifting device is suspended from the lifting equipment (such as the crane equipment configured on offshore wind power construction vessels) by the lifting cable 8; the lifting device is lifted and moved so that the root and tip of the wind turbine blade fall into the two clamping devices 2 on the left and right respectively. After the position is correct, the swing arm hydraulic cylinders 2-14 of the two clamping devices 2 are operated to move, and the swing arm beam 2-7 swings downward until the hydraulic pressing component presses on the blade. When the appropriate pressing force is generated, the root / tip of the blade is clamped and fixed in the two clamping devices 2; then the lifting equipment lifts the lifting device and the wind turbine blade in a horizontal position to the height of the wind turbine for installation.

[0055] When it is necessary to adjust the attitude of a single wind turbine blade, the forward and backward swing hydraulic cylinder 7-4 and / or the left and right swing hydraulic cylinder 7-3 are controlled to generate corresponding driving actions, and the attitude of the blade changes, making the relative positional relationship between the wind turbine blade and the wind turbine more accurate, improving the efficiency of single blade installation and construction and ensuring the installation effect.

Claims

1. A marine hydraulic clamping horizontal single-blade spreader, characterized in that: The system includes a platform device (1) and clamping devices (2) installed at both ends thereon. The platform device (1) includes a platform frame (1-1), and a hanging device (7) with left-right and front-back swing drive function is installed in the middle of the platform frame (1-1). The hanging device (7) is connected to the lifting equipment through a lifting cable (8). The clamping device (2) includes a longitudinal beam, a top crossbeam (2-2) is installed at the top of the longitudinal beam, and a bottom crossbeam (2-23) is installed at the bottom. The top crossbeam (2-2) is detachably connected to the platform device (1). A controllable deflection hydraulic pressing component is installed in the middle of the longitudinal beam. A support seat (2-24) is installed in the middle of the bottom crossbeam (2-23). ​​A support component is installed on the top of the support seat (2-24). The wind turbine blade is located between the hydraulic pressing component and the support component. A limiting component (2-20) for limiting the wind turbine blade is installed in the lower middle part of the longitudinal beam. Two sets of assembly bases (2-3) are provided on the top crossbeam (2-2). Each set of assembly bases (2-3) includes two opposite base plates with pin holes. Pin holes are provided at corresponding positions on the left and right end beams of the platform device (1). When the clamping device (2) is assembled and installed on the platform device (1), the end beam of the platform device (1) is allowed to fall between the two base plates of each set of assembly bases (2-3). The hydraulic holding assembly includes a swing arm crossbeam (2-7) that is hinged to the lower end of the upper longitudinal beam (2-13) at its rear end; a swing arm hydraulic cylinder (2-14) is installed between the middle of the swing arm crossbeam (2-7) and the root of the top crossbeam (2-2); and a holding assembly is installed below the front end of the swing arm crossbeam (2-7). A locking assembly is also installed between the top crossbeam (2-2) and the swing arm crossbeam (2-7). The locking assembly includes a locking strut (2-5) whose upper end is hinged to the bottom of the middle part of the top crossbeam (2-2) and a locking hydraulic cylinder (2-6) hinged to the swing arm crossbeam (2-7). The piston rod end of the locking hydraulic cylinder (2-6) is hinged to the lower end of the locking strut (2-5).

2. The marine hydraulic clamping horizontal single-blade spreader as described in claim 1, characterized in that: The suspension device (7) includes a suspension beam (7-6), and two bottom connecting beams (1-2) are installed on the lower part of the platform frame (1-1) of the platform device (1). Each end of the suspension beam (7-6) is provided with a beam support arm (7-5), and the lower ends of the two beam supports (7-5) are hinged to the middle of the two bottom connecting beams (1-2). A suspension longitudinal beam (7-2) is hinged to the middle of the suspension beam (7-6). A front and rear swing arm hydraulic cylinder (7-4) is installed between the platform frame (1-1) and the suspension beam (7-6). A left and right swing arm hydraulic cylinder (7-3) is installed between the outer end of the suspension beam (7-6) and the upper end of the suspension longitudinal beam (7-2).

3. The marine hydraulic clamping horizontal single-blade spreader as described in claim 2, characterized in that: The longitudinal beams include an upper longitudinal beam (2-13) and a lower longitudinal beam (2-17), with the lower end of the upper longitudinal beam (2-13) and the upper end of the lower longitudinal beam (2-17) being connected together.

4. The marine hydraulic clamping horizontal single-blade spreader as described in claim 3, characterized in that: The holding assembly includes a holding base (2-8) fixed to the swing arm beam (2-7), a pressure plate (2-9) with a pressure plate pad (2-10) at the bottom is provided below the holding base (2-8), a guide assembly (2-11) is provided between the holding base (2-8) and the pressure plate (2-9), the guide sleeve of the guide assembly (2-11) is fixedly connected to the holding base (2-8), the guide rod is fixedly connected to the pressure plate (2-9), and a tension spring (2-12) is also provided between the holding base (2-8) and the pressure plate (2-9).

5. The marine hydraulic clamping horizontal single-blade spreader as described in claim 4, characterized in that: The support assembly includes a conformal vertical plate mounted on a support base (2-24), a plurality of support crossbars (2-22) mounted on the top of the conformal vertical plate, and a support pad layer (2-21) mounted on the support surface formed by the support crossbars (2-22).

6. The marine hydraulic clamping horizontal single-blade spreader as described in claim 5, characterized in that: The limiting assembly (2-20) includes guide sleeves installed on both sides of the lower longitudinal beam (2-17), a limiting crossbar is provided inside the guide sleeve, a limiting vertical plate is installed at the front end of the limiting crossbar, and an adhesive strip is installed at the front of the limiting vertical plate.

7. The marine hydraulic clamping horizontal single-blade spreader as described in any one of claims 1 to 6, characterized in that: A counterweight platform (11) is installed at the front of both ends of the platform device, and a counterweight block (12) is installed on the counterweight platform (11).

8. The marine hydraulic clamping horizontal single-blade spreader as described in any one of claims 1 to 6, characterized in that: A generator (6), a control cabinet (9) and a hydraulic station (10) are installed on the platform device, and cable wind devices (4) are installed on both counterweight platforms (11).

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