A hoist sling and system

Abstract

The present application relates to the technical field of equipment hoisting and moving construction, and particularly relates to a hoisting sling and system, the hoisting sling comprising a hoisting platform, an arm beam, a lifting sling mechanism and a sling belt, the arm beam being hinged to the hoisting platform, the arm beam being provided with a guide groove penetrating through the bottom surface and a plurality of limiting holes arranged along the length direction, a fall-preventing strip being arranged in the guide groove, the lifting sling mechanism being slidingly arranged in the fall-preventing strip or being limited in the guide groove by a limiting shaft penetrating through the limiting hole, one end of the sling belt being capable of being connected to the lifting sling mechanism, and the other end being capable of being connected to the opposite side of the hoisting platform. The hoisting sling can realize in-air posture adjustment of the equipment mechanism, reduce the air time of the equipment mechanism, is simple to operate, improves the hoisting and moving efficiency of the equipment mechanism, the lifting sling mechanism is lifted by the fall-preventing strip, can always maintain the connection state with the arm beam, further improves the adjustment efficiency and hoisting and moving efficiency, and expands the adaptation range of the hoisting sling.

Description

Technical Field

[0001] This invention relates to the field of equipment hoisting and relocation construction technology, and in particular to a hoisting tool and system. Background Technology

[0002] In the relocation of large mechanical equipment, slings are often used for lifting. Slings are typically directly connected to the hoisting mechanism, making it impossible to adjust the equipment's attitude in mid-air. For example, wind turbine blades are large and irregularly shaped, posing challenges in their transfer, transportation, and installation. In recent years, with increasing limitations on wind turbine installation sites and the increased weight of blades due to larger turbines, single-blade lifting devices have become the preferred choice for many wind turbine construction projects. For safety and cost considerations, wind turbine manufacturers are increasingly favoring horizontal single-blade lifting devices. Unlike the large-angle single-blade lifting device described in Chinese Utility Model Patent CN211110648U and the full-rotation single-blade lifting device described in Chinese Utility Model Patent CN212609110U, the horizontal single-blade lifting device only requires blade attitude adjustment within a very small angle range. It can be used in conjunction with a turning gear device similar to that described in Chinese Invention Patent CN115419554A to achieve the installation of three wind turbine blades.

[0003] Chinese utility model patent CN215854597U discloses a special lifting tool for wind turbine blades, namely a horizontal single-blade lifting tool, which includes a main platform, lifting straps, and a clamping mechanism. Crossbeams are installed at both ends of the main platform. By adjusting the installation position of the lifting straps on the crossbeams, it can accommodate blades in various orientations, solving the technical problem that existing lifting tools can only lift blades at fixed angles, making it difficult to meet installation requirements. However, because the lifting straps are directly connected to the crossbeams of the main platform, this special lifting tool for wind turbine blades cannot actually achieve aerial adjustment of the blade's orientation. The blade cannot rotate around its longitudinal axis or its transverse axis in the air, making blade-hull docking cumbersome and difficult, affecting installation efficiency. Meanwhile, when adjusting the connection position of the sling on the crossbeam, it needs to be disconnected from the crossbeam, which poses a safety risk and can only be adjusted before lifting. This further limits its ability to adjust the blade attitude in the air. The clamping mechanism drives the clamping arm to rotate through the action of the clamping cylinder, thereby controlling the lifting and lowering of the clamping plate. During the lifting and lowering process, the clamping plate moves laterally relative to the blade. It can only clamp specific reinforcing areas on the blade at a certain height. In actual operation, the relative height between the blade and the lifting device needs to be adjusted. This contradicts the fact that the sling is directly connected to the main platform crossbeam, which makes it impossible to adjust the blade attitude in the air. This causes inconvenience in use and affects the lifting efficiency.

[0004] Therefore, there is an urgent need for a technical solution to address the technical problem that existing lifting slings are directly connected to the main platform, making them inconvenient to adjust and unable to achieve aerial adjustment of equipment posture, thus affecting lifting efficiency. Summary of the Invention

[0005] The purpose of this invention is to address the technical problem that existing lifting slings are directly connected to the main platform, which is inconvenient to adjust and cannot achieve aerial adjustment of the equipment's posture, thus affecting lifting efficiency. This invention provides a lifting sling and system.

[0006] To achieve the above objectives, the technical solution adopted by the present invention is as follows:

[0007] A lifting device includes a lifting platform, an arm beam, a lifting and suspending mechanism, and a sling. The arm beam is hinged to the lifting platform. The arm beam has a guide groove penetrating its bottom surface and a plurality of limiting holes arranged along its length. A fall arresting strip is provided in the guide groove. The lifting and suspending mechanism is slidably disposed on the fall arresting strip and can be limited in the guide groove by a limiting shaft passing through the limiting holes. One end of the sling can be connected to the lifting and suspending mechanism, and the other end can be connected to the opposite side of the lifting platform.

[0008] This invention discloses a lifting device. In use, a sling is connected to a lifting mechanism. The lifting mechanism can raise or lower both ends of the sling as needed, thereby adjusting the aerial posture of the equipment suspended on the sling. Operation is simple, reducing the equipment's time spent in the air and improving lifting efficiency. Furthermore, when adjusting the relative position of the lifting mechanism and the boom, it is only necessary to drag the lifting mechanism along the guide groove and then fix it to different limit holes via the limit shaft. The lifting mechanism, supported by anti-fall bars, maintains its connection with the boom, further improving adjustment and lifting efficiency. It also allows the sling to lift equipment of different sizes, expanding the device's applicability. Additionally, the boom is hinged to the lifting platform, allowing it to rotate relative to the platform, reducing the lifting device's size and facilitating transportation.

[0009] In a preferred embodiment of the present invention, the lifting and slinging mechanism includes an electric hoist and an automatic unhooking device, and the sling can be connected to the automatic unhooking device. The electric hoist controls the lifting and lowering of the sling end, and the automatic unhooking device enables connection and disconnection from the sling.

[0010] In a preferred embodiment of the present invention, the connecting part of the lifting platform is used to connect an automatic unhooking device. The sling can be connected to the automatic unhooking device. The connecting part is located on the other side of the lifting platform relative to the lifting and hoisting mechanism, or every two connecting parts are arranged opposite each other on the lifting platform. The connecting part is connected to the sling via the automatic unhooking device and does not have a lifting control function for the end of the sling. It can cooperate with the lifting and hoisting mechanism set on the boom beam according to the actual situation, so that the lifting device can achieve the function of adjusting the aerial attitude of the hoisted equipment mechanism relative to one side of the boom beam at a relatively low cost.

[0011] In a preferred embodiment of the present invention, the lifting platform includes a main frame and a vertical frame perpendicular to the main frame, and the boom is hinged to the vertical frame. The vertical frame provides an installation position for the boom's hinge, allowing the boom to rotate within the range of the vertical frame, facilitating transportation.

[0012] In a preferred embodiment of the present invention, several of the vertical frames and / or the connecting parts are distributed on the main frame. This allows for the connection of the slings in different ways, forming a lifting space adaptable to different equipment mechanisms.

[0013] In a preferred embodiment of the present invention, the main frame includes a rectangular frame structure, and a vertical frame is provided at one or both ends of the main frame. The vertical frame is hinged to the arm beams on both sides of the main frame in the lateral direction. This allows for the matching of equipment mechanisms with relatively long dimensions using the rectangular frame structure.

[0014] As a preferred embodiment of the present invention, the vertical frame is provided at one longitudinal end of the main frame, and the connecting part is provided at the opposite end. This allows for attitude adjustment and position adaptation of the hoisted equipment mechanism at one longitudinal end of the main frame, reducing the overall cost of the lifting device and offering significant economic advantages.

[0015] As a preferred embodiment of the present invention, the vertical frames are respectively provided at both ends of the main frame. This allows for attitude adjustment and position adaptation of the suspended equipment mechanism at both ends of the main frame, providing high flexibility and a wide adjustment range.

[0016] In a preferred embodiment of the present invention, the arm beams are hinged to opposite sides of the lifting platform, and each arm beam is equipped with a lifting and hoisting mechanism. This expands the attitude adjustment range of the lifting device, enabling the hoisted equipment to be adjusted in different directions.

[0017] In a preferred embodiment of the present invention, a tail fin section is provided on the side of the boom beam near the lifting platform. The tail fin section has a cross-sectional area that gradually widens along the direction close to the lifting platform, and the tail fin section is hinged to the vertical frame. This provides a wider hinge range between the boom beam and the lifting platform, improving the structural stability of the boom beam. Simultaneously, it allows the boom beam to rotate close to the lifting platform, reducing the overall width of the lifting equipment, facilitating the transportation of the lifting equipment, and simplifying maintenance operations of the lifting and hoisting mechanism on the lifting platform.

[0018] In a preferred embodiment of the present invention, a support rod is hinged to the boom beam, and working lugs and folding lugs are arranged on the lifting platform. The support rod is hinged to either the working lug or the folding lug. This allows for separate limiting and fixing of the boom beam in its extended and folded states, ensuring structural stability during the use and transport of the lifting equipment.

[0019] As a preferred embodiment of the present invention, it further includes a clamping mechanism and a slotting mechanism. The slotting mechanism is fixedly disposed or detachably connected to the bottom of the lifting platform. The slotting mechanism is provided with a slot for holding the clamping mechanism. The clamping mechanism is slidably disposed in the slot or limited in the slot by a connecting member. The clamping mechanism is used to clamp the hoisted equipment onto the sling, preventing relative displacement between the equipment and the sling, thereby improving hoisting stability and safety. The clamping mechanism can move along the slot. In use, the contact position of the clamping mechanism can be changed according to the actual situation so that the clamping mechanism can contact a designated position.

[0020] In a preferred embodiment of the present invention, the clamping mechanism includes a mounting base, a linkage mechanism, a transition mechanism, and a pressure block mechanism connected in sequence by hinges. The mounting base is adapted to the slot mechanism, the linkage mechanism is hinged to the telescopic mechanism, and the telescopic mechanism is used to drive the linkage mechanism to swing. The extension direction of the slot is perpendicular to the swing surface of the linkage mechanism. The mounting base is provided with a perforated lug for hinged connection between the linkage mechanism and the telescopic mechanism. The multi-point hinged clamping mechanism enables the pressure block mechanism to have a wide range of adaptability. During the extension or retraction of the telescopic mechanism, it will not generate a large angle with the suspended equipment mechanism, and can fit well against the surface of the suspended equipment mechanism. At the same time, it can adjust the position of the pressure block mechanism along the swing direction perpendicular to the linkage mechanism without changing the swing direction of the linkage mechanism or its relative connection with the mounting base.

[0021] In a preferred embodiment of the present invention, the mounting base and / or the slot mechanism are arranged with connecting holes in an array. The mounting base and the slot mechanism are detachably connected via connectors adapted to the connecting holes, and the connecting holes are arranged at least along the extension direction of the slot. After the mounting base is positioned along the slot, a stable connection with the slot mechanism can be achieved through the connectors, thereby improving the structural stability of the clamping device during use.

[0022] In a preferred embodiment of the present invention, the adapter mechanism includes an adapter seat and a transition seat. The adapter seat is hinged to the linkage mechanism, and the adapter seat can maintain a horizontal bottom surface during the rotation of the linkage mechanism. The bottom of the transition seat is hinged to the pressure block mechanism. This allows the adapter seat to automatically achieve mechanical leveling during the rotation of the linkage mechanism, always maintaining a horizontal bottom surface. This provides a relatively horizontal hinge position for the pressure block mechanism, enabling the pressure block mechanism to maintain its structural stability under gravity. This ensures that the pressing surface used to contact the suspended equipment is relatively horizontal, effectively avoiding a large angle between the pressure block mechanism and the suspended equipment.

[0023] In a preferred embodiment of the present invention, the adapter and / or the transition seat array is arranged with mounting holes. The adapter and the transition seat are detachably connected by connectors adapted to the mounting holes. In the same arrangement direction, the spacing between adjacent mounting holes is smaller than the spacing between adjacent connecting holes. This allows the pressure block mechanism to be positionally adjusted relative to the adapter, further expanding the clamping range of the clamping device, improving the adaptability of the clamping device to the suspended equipment, and enabling fine adjustment of the position of the pressure block mechanism over a larger range.

[0024] In a preferred embodiment of the present invention, the pressing mechanism includes a balance seat and pressure plates. The balance seat is hinged to the bottom of the transition seat, and one or more pressure plates are hinged to the bottom of the balance seat around an axis perpendicular to the extension direction of the slot. This allows the pressing mechanism to adapt to the irregular shape of the suspended equipment through the cooperation of multiple pressure plates, increasing the contact area and improving the pressing effect.

[0025] A hoisting system includes a hoisting device as described above, wherein an electrical control cabinet and a power system are installed on the hoisting platform, and the power system is capable of controlling the lifting and lowering of the hoisting mechanism.

[0026] The present invention provides a hoisting system that supplies power to the electrical components of the hoisting equipment through an electrical control cabinet installed on the hoisting platform. The power system controls the movement of the lifting and hoisting mechanism and the telescopic mechanism, reducing the difficulty of manual adjustment and improving the flexibility and automation of the hoisting equipment.

[0027] In summary, due to the adoption of the above technical solution, the beneficial effects of the lifting and hoisting tool of the present invention are as follows:

[0028] 1. The lifting and hoisting mechanism can raise or lower the end of the sling as needed, thereby realizing the aerial attitude adjustment of the equipment mechanism suspended on the sling. It is easy to operate, can reduce the time the equipment mechanism is suspended in the air, and improve the hoisting efficiency of the equipment mechanism.

[0029] 2. When it is necessary to adjust the relative position of the lifting and hanging mechanism and the boom beam, simply drag the lifting and hanging mechanism along the guide groove and then fix it to different limit holes through the limit shaft. The lifting and hanging mechanism is supported by the anti-fall strip and can always maintain the connection with the boom beam, which further improves the adjustment efficiency and lifting efficiency.

[0030] 3. The slings can lift equipment and mechanisms of different specifications and sizes, expanding the range of applications for lifting equipment;

[0031] 4. The boom beam is hinged to the lifting platform, allowing it to rotate relative to the lifting platform to within the platform's range, reducing the size of the lifting equipment and facilitating the transportation of lifting tools;

[0032] The beneficial effects of the hoisting system of the present invention are:

[0033] The electrical control cabinet installed on the gantry platform supplies power to the electrical components of the lifting equipment. The power system controls the lifting and telescopic mechanisms, reducing the difficulty of manual adjustment and improving the flexibility and automation of the lifting equipment. Attached Figure Description

[0034] Figure 1 This is a structural schematic diagram of a lifting and hoisting device according to the present invention;

[0035] Figure 2 This is a schematic diagram of the connection between the boom beam and the lifting and hanging mechanism in this invention;

[0036] Figure 3 This is a structural schematic diagram of the arm beam in the deployed state described in this invention;

[0037] Figure 4 This is a schematic diagram of the folded state of the arm beam described in this invention;

[0038] Figure 5 This is a schematic diagram of the connecting part described in this invention;

[0039] Figure 6 This is a schematic diagram of the structure of a lifting device in Embodiment 2. Figure 1 ;

[0040] Figure 7 This is a schematic diagram of the structure of a lifting device in Embodiment 3. Figure 2 ;

[0041] Figure 8 This is a schematic diagram of the clamping mechanism described in Embodiment 6. Figure 1 ;

[0042] Figure 9 This is a front view of the clamping mechanism described in Embodiment 6;

[0043] Figure 10This is a side view of the clamping mechanism described in Embodiment 6;

[0044] Figure 11 This is an isometric view of the clamping mechanism described in Embodiment 6;

[0045] Figure 12 This is a schematic diagram of the assembly structure of the clamping mechanism described in Example 7;

[0046] Figure 13 This is a schematic diagram of the mounting base described in Embodiment 7;

[0047] Figure 14 This is a schematic diagram of the adapter described in Embodiment 7;

[0048] Figure 15 This is a schematic diagram of the transition seat described in Embodiment 7.

[0049] icon:

[0050] 1-Hanging platform; 11-Main frame; 12-Vertical frame; 13-Connecting part; 14-Working ear plate; 15-Folding ear plate; 16-Lifting lug; 2-Arm beam; 21-Guide groove; 22-Limiting hole; 23-Anti-fall strip; 24-Limiting shaft; 25-Tail section; 3-Lifting and hoisting mechanism; 31-Electric hoist; 32-Automatic unhooking device; 33-Sleeve component;

[0051] 4-Sling; 5-Strut; 6-Pressure mechanism; 61-Mounting base; 611-Hole ear plate; 612-First mounting plate; 613-Connecting plate; 614-Second mounting plate; 62-Linkage mechanism; 63-Transfer mechanism; 631-Transfer base; 632-Transition base; 633-Mounting hole; 64-Pressure block mechanism; 641-Balance base; 642-Pressure plate; 65-Telescopic mechanism; 7-Slot mechanism; 71-Slot; 72-Connecting hole; 8-Electrical control cabinet; 9-Power system; 10-Blade. Detailed Implementation

[0052] The present invention will now be described in detail with reference to the accompanying drawings.

[0053] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the invention.

[0054] Example 1

[0055] like Figures 1-7As shown, a lifting device in this embodiment includes a lifting platform 1, an arm beam 2, a lifting and hoisting mechanism 3, and slings 4. The lifting platform 1 is a frame structure formed by welding steel components. The top of the lifting platform 1 is provided with multiple lifting lugs 16 for connecting slings. The arm beam 2 is a steel beam-shaped structure. The end of the arm beam 2 is hinged to the lifting platform 1 and extends beyond the lifting platform 1. The arm beam 2 is provided with a guide groove 21 that penetrates its bottom surface (i.e., the bottom of the guide groove 21 is open) and is arranged along its length. The column is provided with several limiting holes 22. The guide groove 21 is provided with anti-fall strips 23 extending along the length of the guide groove 21 near its bottom surface. The lifting and hanging mechanism 3 includes an electric hoist 31 and an automatic unhooking device 32. The electric hoist 31 is supported by the anti-fall strips 23 and can move along the guide groove 21. It can also be limited in the guide groove 21 by the limiting shaft 24 passing through the limiting holes 22. One end of the sling 4 can be connected to the automatic unhooking device 32, and the other end can be connected to the opposite side of the hanging platform 1.

[0056] In this embodiment, a lifting device is provided. The lifting platform 1 can be configured into any shape according to the shape of the equipment being lifted. For example, for a wind turbine blade 10 with a large aspect ratio, the lifting platform 1 can be configured as a rectangular frame structure. The lifting platform 1 can adapt its own length direction to the length direction of the wind turbine blade 10 and its own width direction to the width direction of the wind turbine blade 10 for lifting the wind turbine blade 10. For equipment with polygonal features, the lifting platform 1 can be configured as a polygonal frame structure of the corresponding shape, so as to form a lifting space by matching its own shape features with the shape features of the lifted mechanism, thereby achieving stable lifting.

[0057] One type of lifting device in this embodiment, such as... Figure 2 As shown, the arm beam 2 includes a steel box girder component with a flat bottom and a double row of ear plates disposed at the bottom of the steel box girder component. Multiple limiting holes 22 are arranged on the ear plates, and the limiting holes 22 of the double row of ear plates are concentrically arranged to form a gap between the double row of ear plates. Anti-fall strips 23 are provided on the inner side of the bottom of the ear plates. The guide groove 21 of the arm beam 2 is formed through the bottom. The number and hinge position of the arm beam 2 can be adjusted according to the actual situation. The arm beam 2 is hinged to the side of the lifting platform 1 at the end, and can rotate relative to the lifting platform 1 to the range of the lifting platform 1, reducing the lifting volume and facilitating the transportation of lifting equipment.

[0058] One type of lifting device in this embodiment, such as... Figure 2 As shown, hollow sleeve components 33 are provided on both sides of the electric hoist 31, so that the electric hoist 31 can be placed on the anti-fall strip 23 through the sleeve components 33, and can be limited and fixed in the guide groove 21 by passing through the limiting hole 22 and the limiting shaft 24 of the sleeve component 33.

[0059] In use, one end of the sling 4 is connected to the automatic release device 32, and the other end is connected to the opposite side of the lifting platform 1. The connection method of the other end of the sling 4 is set according to the actual situation. The automatic release device 32 is connected to the electric hoist 31. The electric hoist 31 is placed on the anti-fall strip 23 in the guide groove 21 and limited by the limiting shaft 24, forming a hoisting space between the lifting platform 1 and the sling 4. The shape of the hoisting space can be changed by controlling the lifting and lowering of the end of the sling 4 through the electric hoist 31. When it is necessary to adjust the hinge position of the electric hoist 31 on the arm beam 2, the limiting shaft 24 used to limit the arm beam 2 and the electric hoist 31 is removed. The electric hoist 31 is dragged and slid on the anti-fall strip 23 until it stops at the required limiting hole 22. Then the limiting shaft 24 is reconnected to realize the re-hinging of the electric hoist 31 and the arm beam 2, which can change the shape and size of the hoisting space, making the position adjustment operation of the electric hoist 31 simple and quick.

[0060] When hoisting equipment, the lifting and hoisting mechanism 3 can raise or lower the end of the sling 4 as needed, thereby achieving aerial posture adjustment of the equipment hoisted on the sling 4. The operation is simple, which can reduce the time the equipment stays in the air and improve the hoisting efficiency. At the same time, since the electric hoist 31 is supported by the anti-fall strip 23 during the dragging process, it can always maintain the connection with the boom beam 2, which can realize the aerial adjustment of the position of the end of the sling 4. It can also make the sling 4 adaptable to hoisting equipment of different specifications and sizes, expanding the adaptability of the hoisting equipment and further improving the adjustment efficiency, hoisting efficiency and hoisting adaptability.

[0061] Example 2

[0062] like Figures 1-7 As shown, in this embodiment of the lifting device, based on embodiment 1, the other arm beam 2 is hinged to the other side of the lifting platform 1 relative to the arm beam 2, that is, the arm beam 2 is hinged to the opposite sides of the lifting platform 1 respectively, and each arm beam 2 is provided with the lifting and hanging mechanism 3.

[0063] One type of lifting device in this embodiment, such as... Figure 1 , Figure 6 , Figure 7 As shown, two lifting and hoisting mechanisms 3 are set up through two opposing arm beams 2. Both ends of the sling 4 are connected to an automatic unhooking device 32 with an electric hoist 31, so as to realize the separate lifting and hoisting control of both ends of the sling 4. Thanks to the long length of the arm beams 2 on both sides, the ends of the sling 4 can be adjusted by the position of the electric hoist 31 on the arm beam 2, so as to realize the hoisting of equipment mechanisms with a larger size range, and to expand the attitude adjustment range of the hoisting tool, so that the hoisted equipment mechanism can be adjusted in different directions.

[0064] Example 3

[0065] like Figures 1-7 As shown, in this embodiment of the lifting device, based on embodiment 1, a connecting part 13 is provided on the other side of the lifting platform 1 opposite to the arm beam 2. The connecting part 13 is used to connect the automatic unhooking device 32, and the sling 4 can be connected to the automatic unhooking device 32.

[0066] One type of lifting device in this embodiment, such as... Figure 5 , Figure 7 As shown, the connecting part 13 includes an ear plate structure, which is connected to the sling 4 through the automatic unhooking device 32 to realize the connection of the end of the sling 4 on the lifting platform 1. The sling 4 does not have an electric hoist 31 at this end and does not have a lifting control function, but it can cooperate with the lifting and hanging mechanism 3 set on the arm beam 2 according to the actual situation, so that the lifting device can realize the aerial attitude adjustment function of the hoisted equipment mechanism deflecting relative to one side of the arm beam 2 at a relatively low cost.

[0067] In some embodiments, the slings 4 corresponding to the parts of the hoisted equipment that do not require aerial posture adjustment during hoisting can be connected to the hoisting platform 1 at both ends via connecting parts 13, such as... Figure 7 As shown, for example, the blade root of a wind turbine blade, which requires attitude adjustment to improve docking efficiency, is adjusted by the lifting and hanging mechanism 3, while the blade tip is suspended by slings connected to the connecting part 13 at both ends. This means that on the lifting platform 1, only the slings 4 corresponding to the position where the suspended equipment needs to be adjusted in the air are connected to the arm beam 2 by the lifting and hanging mechanism 3, which further simplifies the size and cost of the lifting platform 1 and makes it more economical.

[0068] It is understandable that, in order to adapt to different usage environments, the connecting part 13 and the arm beam 2 can be selectively set according to the actual situation, and the quantity and position can also be adjusted according to the actual situation.

[0069] Example 4

[0070] like Figures 1-7 As shown, in this embodiment of a lifting device, based on any one of embodiments 1-3, the lifting platform 1 includes a main frame 11 and a vertical frame 12 perpendicular to the main frame 11. The arm beam 2 is provided with a tail wing section 25 on the side near the lifting platform 1. The tail wing section 25 has the characteristic of gradually widening the cross-sectional area along the direction near the lifting platform 1. The tail wing section 25 is hinged to the vertical frame 12.

[0071] In this embodiment, a lifting device is provided with a tail section 25, which is a part with a gradually widening cross section along the longitudinal direction of the arm beam 2. The vertical frame 12 is a steel frame structure that is perpendicular to the top surface of the main frame 11. The vertical frame 12 is hinged to the tail section 25 through its vertical side, which makes the hinge range between the arm beam 2 and the lifting platform 1 wider, improving the connection stability between the arm beam 2 and the lifting platform 1. Furthermore, through the vertical frame 12, the arm beam 2 can be completely rotated to the inside of the lifting platform 1, reducing the overall width of the lifting device, facilitating the transportation of the lifting device, and facilitating the maintenance operation of the lifting and hoisting mechanism 3 on the lifting platform 1.

[0072] Preferred, such as Figures 3-4 As shown, a support rod 5 is hinged to the boom beam 2, and working lugs 14 and folding lugs 15 are arranged on the lifting platform 1. The support rod 5 is hinged to either the working lugs 14 or the folding lugs 15. This allows the boom beam 2 to be respectively limited and fixed in the extended and folded states, ensuring the structural stability of the lifting equipment during use and transportation.

[0073] Specifically, the tail section 25 is hinged to the strut 5, and working lugs 14 and folding lugs 15 are arranged on the vertical frame 12, such as... Figure 3 As shown, when the tail section 25 and the working lug 14 are hinged together by the strut 5, the boom beam 2 is in the extended state relative to the lifting platform 1, as shown. Figure 4 As shown, when the tail section 25 and the folding lug 15 are hinged together by the strut 5, the arm beam 2 is in a folded state relative to the gantry platform 1.

[0074] It is understood that, in order to further improve the connection stability between the arm beam 2 and the vertical frame 12, the number of support rods 5 between the arm beam 2 and the vertical frame 12 can be adjusted according to the actual situation. In this embodiment, it is preferable that two support rods 5 are arranged along the height direction of the vertical frame 12.

[0075] Example 5

[0076] like Figures 1-7 As shown in the figure, a hoisting device of this embodiment includes a main frame 11 comprising a rectangular frame structure, and a vertical frame 12 is provided at one or both ends of the longitudinal direction of the main frame 11. The vertical frame 12 is hinged to the arm beam 2 on both sides of the transverse direction of the main frame 11.

[0077] This embodiment describes a lifting device for suspending equipment with a large aspect ratio, such as a single blade 10 of a wind turbine, using a rectangular frame structure. The main frame 11 is a rectangular frame structure welded from steel components. A vertical frame 12 is provided at one longitudinal end of the main frame 11. An arm beam 2 is hinged to the side of the vertical frame 12 in the transverse direction relative to the main frame 11. The arm beam 2 can rotate from a state where it is positioned transversely along the main frame 11 to a state where it is positioned longitudinally along the main frame 11 and close to the side of the main frame 11. This allows the arm beam 2 to unfold in the working state. Thanks to the relatively long length of the arm beam 2, the lifting device can adapt to the lifting requirements of the wind turbine blade 10 in a horizontally placed position, thus improving the adaptability of the lifting device. When the arm beam 2 is in the transport state, it is folded relative to the lifting platform 1, which can greatly reduce the overall width of the lifting device, making transportation convenient and facilitating maintenance personnel to perform maintenance operations on the electric hoist 31 on the lifting platform 1.

[0078] As a preferred option, such as Figure 1 As shown, the vertical frame 12 is connected to the hinged arm beams 2 on both sides of the main frame 11 in the transverse direction.

[0079] As a preferred option, such as Figure 6 As shown, vertical frames 12 are respectively set at both ends of the main frame 11. That is, arm beams 2 and lifting and hanging mechanisms 3 are set at both ends of the hanging platform 1 to realize the installation of four electric hoists 31 on the hanging platform 1. This allows for the adjustment of the posture and position of the hoisted equipment mechanism at both ends of the main frame 11, providing high flexibility and a wide adjustment range. In use, different linkage modes of the four electric hoists 31 are used to achieve different adjustments of the posture of the blades 10. For example, when two electric hoists 31 on the same side of the hanging platform 1 are raised or lowered at the same time, the blades 10 can rotate around their longitudinal axis. When two electric hoists 31 on the same end of the hoist are raised or lowered at the same time, the blades 10 can rotate around their transverse axis. In use, by adjusting the posture of the blades 10 in the air, the studs at the end of the blades 10 can be aligned with the bolt holes of the wind turbine hub more quickly, reducing the hang time of the blades 10 during installation.

[0080] As a preferred option, such as Figure 7As shown, the vertical frame 12 is provided at one longitudinal end of the main frame 11, while the opposite end is only provided with a connecting part 13 for hinged automatic unhooking device 32. That is, an arm beam 2 and a lifting and hanging mechanism 3 are provided at one longitudinal end of the lifting platform 1, while the other end does not have an arm beam 2 and a lifting and hanging mechanism 3. Instead, the automatic unhooking device 32 is directly hinged and installed on the lifting platform 1. The sling 4 is connected to the automatic unhooking device 32 and the blade 10 is lifted. When it is necessary to adjust the posture of the blade 10, the rotation adjustment of the blade 10 is driven only by the action of the electric hoist 31 at one longitudinal end of the lifting platform 1, so as to reduce the overall cost of the lifting equipment and have good economic advantages.

[0081] Example 6

[0082] like Figures 1-15 As shown, in this embodiment of the lifting device, based on embodiment 1 or embodiment 2, the lifting device further includes a clamping mechanism 6 and a slotting mechanism 7. The clamping mechanism 6 is used to clamp the hoisted equipment onto the sling 4. The slotting mechanism 7 is fixedly installed or detachably connected to the bottom of the lifting platform 1. The slotting mechanism 7 is provided with a slot 71 for holding the clamping mechanism 6. The clamping mechanism 6 is slidably installed in the slot 71 or limited in the slot 71 by a connector.

[0083] In this embodiment, a lifting device is used to press the hoisted equipment onto the sling 4 through the clamping mechanism 6, so as to prevent relative displacement between the equipment mechanism and the sling 4 and improve the stability and safety of the hoisting. The clamping mechanism 6 can move along the slot 71. In use, the contact position of the clamping mechanism 6 can be changed according to the actual situation so that the clamping mechanism 6 can contact the designated position.

[0084] In this embodiment, the structure of the clamping mechanism 6 can be set according to the actual situation, as long as it can realize the clamping function of the conventional hoisting process. The slot mechanism 7 is a mechanical structure with a slot 71. It can be part of the hoisting platform 1 or a mechanical structure connected to the hoisting platform 1, so that the clamping mechanism 6 can be slidably set in the slot 71. After moving along the slot 71 to the designated position, it can be limited by the connecting member to change the position of the clamping mechanism 6 relative to the hoisted equipment mechanism.

[0085] Example 7

[0086] like Figures 8-15As shown, in this embodiment of a lifting device, based on embodiment 6, the clamping mechanism 6 includes a mounting base 61, a connecting rod mechanism 62, a transition mechanism 63, and a pressure block mechanism 64 connected in sequence. The mounting base 61 is adapted to the slot mechanism 7. The transition mechanism 63 includes a transition seat 631 and a transition seat 632. The transition seat 631 is hinged to the connecting rod mechanism 62, and the bottom of the transition seat 632 is hinged to the pressure block mechanism 64. The pressure block mechanism 64 includes a balance seat 641 and a pressure plate 642. The balance seat 641 is hinged to the bottom of the transition seat 632. The connecting rod mechanism 62 is hinged to a telescopic mechanism 65. The telescopic mechanism 65 is used to drive the connecting rod mechanism 62 to swing. The extension direction of the slot 71 is perpendicular to the swing surface of the connecting rod mechanism 62. The mounting base 61 is provided with a perforated ear plate 611 for hinged to the connecting rod mechanism 62 and the telescopic mechanism 65.

[0087] In this embodiment, a lifting device is provided. The path through which the linkage mechanism 62 swings forms a swing surface. The slot 71 is set perpendicular to the swing surface. This means that during the extension or retraction of the telescopic mechanism 65, the height of the pressure block mechanism 64 within the swing surface is controlled by the swing of the linkage mechanism 62. The position of the pressure block mechanism 64 in the lateral direction perpendicular to the swing surface is controlled by the movement of the mounting base 61 along the slot 71. This allows for a wide range of adjustment of the position of the pressure block mechanism 64 without changing the relative connection between the linkage mechanism 62 and the mounting base 61. This gives the pressure block mechanism 64 a wide range of adaptability, prevents it from forming a large angle with the hoisted equipment, and allows it to fit snugly against the designated position on the surface of the hoisted equipment.

[0088] This embodiment uses a lifting device to lift a single blade 10 of a wind turbine as an example for illustration. Figure 13 As shown, the mounting base 61 includes a first mounting plate 612, a connecting plate 613, and a second mounting plate 614 arranged sequentially. The connecting plate 613 and the second mounting plate 614 are arranged at an obtuse angle in the clockwise direction, causing the connecting plate 613 to tilt. The first mounting plate 612 and the connecting plate 613 are arranged at an obtuse angle in the counterclockwise direction. Two perforated lugs 611 for hinged linkage mechanism 62 are provided at the bottom of the first mounting plate 612, forming four linkage holes, such as... Figures 11-12As shown, each connecting rod hole is hinged to a connecting rod, forming a connecting rod mechanism 62 consisting of four parallel connecting rods of equal length. The ends of the four connecting rods furthest from the mounting base 61 are hinged to the adapter mechanism 63. The relative distance between each hole and the mounting base 61 is adjusted according to actual conditions. The other ends of the four connecting rods are hinged to perforated lugs on the adapter 631. The perforated lugs on the adapter 631 are arranged at varying heights according to actual conditions, allowing the adapter 631 to automatically achieve mechanical leveling during the rotation of the parallelogram geometry formed by the connecting rods. This keeps the bottom surface of the adapter 631 horizontal, thus enabling the pressure block mechanism 64 to maintain a relatively horizontal bottom surface under its own weight, avoiding a large angle between it and the suspended equipment. Figure 10 , Figure 13 As shown, the second mounting plate 614 of the mounting base 61 is horizontally arranged. The bottom of the second mounting plate 614 is provided with two perforated ear plates 611 for fixing the shaft seats of the telescopic mechanism 65. The structure is reinforced according to the actual situation, and multiple shaft seat fixing holes for fixing the shaft seats of the telescopic mechanism 65 are formed, so that the two shaft seats of the telescopic mechanism 65 are hinged to the bottom of the mounting base 61. The two shaft seats are arranged opposite to each other and are hinged to the middle of the telescopic mechanism 65 from both sides. The telescopic end of the telescopic mechanism 65 is preferably hinged to the connecting rod or laterally connected to the crossbar of the connecting rod. A load sensor is set at the hinge position to test the force of the telescopic mechanism 65 on the connecting rod mechanism 62. At the same time, two pressure plates 642 are hinged to the bottom of the balance seat 641 around the axis, which is perpendicular to the extension direction of the slot 71. The bottom of the pressure plate 642 is provided with a protective material layer to avoid damage to the suspended equipment mechanism, such as the blade 10. The protective material layer is preferably a polymer plastic material, but other materials and structural components can also be used according to the actual situation.

[0089] In use, the telescopic mechanism 65 is driven to extend and retract electrically or hydraulically, applying a pushing and pulling force to the linkage mechanism 62, causing the four linkages to rotate simultaneously around the mounting base 61, thereby driving the transfer mechanism 63 and the pressure block mechanism 64 to translate but not rotate. This ensures that the lower surface of the pressure block mechanism 64 always maintains approximately the same angle with the equipment being lifted. Furthermore, the relative angle between the first mounting plate 612 and the second mounting plate 614 allows the telescopic mechanism 65 and the linkage mechanism 62 to fold and approach each other at a certain angle, enabling the linkage mechanism 62 and the pressure block mechanism 64 to retract into the bottom surface of the lifting platform 1. This reduces the overall volume of the pressing mechanism, facilitating the overall movement of the lifting equipment and preventing damage to the pressure block mechanism 64 during transport.

[0090] As a preferred solution, such as Figure 8 As shown, the mounting base 61 and the slot mechanism 7 of the plate-shaped structural member are both arranged in an array of multiple rows and columns of connecting holes 72. The mounting base 61 and the slot mechanism 7 are detachably connected by connectors that fit the connecting holes 72. Meanwhile, as... Figure 14 , Figure 15 As shown, the adapter 631 and transition seat 632 are arranged with multiple rows and columns of mounting holes 633. The adapter 631 and transition seat 632 are detachably connected by connectors that fit the mounting holes 633. In the same arrangement direction, the distance between adjacent mounting holes 633 is smaller than the distance between adjacent connecting holes 72. This allows the pressing mechanism 64 to be adjusted in position relative to the adapter 631. In use, by moving the mounting seat 61 along the slot 71, the relative position of the pressing mechanism 6 and the lifting platform 1 can be changed over a wide range. After the movement, it is fixed by the connectors. Then, by moving the adapter 631 and transition seat 632 relative to each other, the position of the pressing mechanism 64 can be finely adjusted, further expanding the pressing range of the pressing mechanism 6, improving the adaptability of the pressing mechanism 6 to the suspended equipment, and improving the pressing effect.

[0091] It is understandable that the arrangement and number of connecting holes 72 and mounting holes 633 can be adjusted according to the actual situation. The connecting parts are conventional mechanical components that play a connecting role, such as bolts or screws.

[0092] Example 8

[0093] A hoisting system includes a hoisting device as described in any one of Embodiments 1-7. An electrical control cabinet 8 and a power system 9 are provided on the hoisting platform 1. The power system 9 controls the lifting and lowering of the lifting and hanging mechanism 3 and the extension and retraction of the telescopic mechanism 65.

[0094] One type of hoisting system in this embodiment, such as Figure 1 As shown, the electrical control cabinet 8 installed on the gantry platform 1 supplies power to the electrical components of the lifting equipment, and the power system 9 controls the movement of the lifting and hoisting mechanism 3 and the telescopic mechanism 65, reducing the difficulty of manual adjustment and improving the flexibility and automation of the lifting equipment.

[0095] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A lifting and hoisting tool, characterized in that, The system includes a gantry platform (1), an arm beam (2), a lifting and hanging mechanism (3), and a sling (4). The arm beam (2) is hinged to the gantry platform (1). The arm beam (2) is provided with a guide groove (21) that penetrates the bottom surface and a number of limiting holes (22) are arranged along the length direction. A fall arresting strip (23) is provided in the guide groove (21). The lifting and hanging mechanism (3) is slidably disposed on the fall arresting strip (23) and can be limited to the guide groove (21) by a limiting shaft (24) that passes through the limiting hole (22). One end of the sling (4) can be connected to the lifting and hanging mechanism (3), and the other end can be connected to the opposite side of the gantry platform (1). It also includes a clamping mechanism (6) and a slot mechanism (7). The slot mechanism (7) is fixedly installed or detachably connected to the bottom of the hanger platform (1). The slot mechanism (7) is provided with a slot (71) for holding the clamping mechanism (6). The clamping mechanism (6) is slidably installed in the slot (71) or limited to the slot (71) by a connector. The clamping mechanism (6) includes a mounting base (61), a linkage mechanism (62), a transfer mechanism (63), and a pressing block mechanism (64) that are hinged together in sequence. The mounting base (61) is adapted to the slot mechanism (7). The linkage mechanism (62) is hinged to the telescopic mechanism (65). The telescopic mechanism (65) is used to drive the linkage mechanism (62) to swing. The extension direction of the slot (71) is perpendicular to the swing surface of the linkage mechanism (62). The mounting base (61) is provided with a perforated ear plate (611) for hinged to the linkage mechanism (62) and the telescopic mechanism (65).

2. The lifting and hoisting tool as described in claim 1, characterized in that, The lifting and hoisting mechanism (3) includes an electric hoist (31) and an automatic unhooking device (32), and the sling (4) can be connected to the automatic unhooking device (32).

3. The lifting and hoisting tool as described in claim 1, characterized in that, The gantry platform (1) is provided with a connecting part (13) for connecting an automatic unhooking device (32). The sling (4) can be connected to the automatic unhooking device (32). The connecting part (13) is provided on the other side of the gantry platform (1) relative to the lifting and hanging mechanism (3) or every two connecting parts are provided opposite to each other on the gantry platform (1).

4. The lifting and hoisting tool as described in claim 1, characterized in that, The hanging platform (1) includes a main frame (11) and a vertical frame (12) perpendicular to the main frame (11), and the arm beam (2) is hinged to the vertical frame (12).

5. A lifting and hoisting tool as described in claim 4, characterized in that, The main frame (11) includes a rectangular frame structure, and the vertical frame (12) is provided at one or both ends of the longitudinal direction of the main frame (11). The vertical frame (12) is hinged to the arm beam (2) on both sides of the transverse direction of the main frame (11).

6. A lifting and hoisting tool as described in claim 1, characterized in that, The arm beams (2) are hinged to the opposite sides of the hanging platform (1), and each arm beam (2) is provided with the lifting and hanging mechanism (3).

7. A lifting and hoisting tool as described in claim 1, characterized in that, The arm beam (2) is provided with a tail section (25) on the side near the gantry platform (1). The tail section (25) has the characteristic of gradually widening cross-sectional area along the direction near the gantry platform (1). The tail section (25) is hinged to the gantry platform (1).

8. A lifting and hoisting tool as described in claim 1, characterized in that, The arm beam (2) is hinged with a support rod (5), and the hanging platform (1) is arranged with working ear plates (14) and folding ear plates (15). The support rod (5) is hinged to the working ear plate (14) or the folding ear plate (15).

9. A lifting and hoisting tool as described in claim 1, characterized in that, The mounting base (61) and / or the slot mechanism (7) are arranged with connecting holes (72). The mounting base (61) and the slot mechanism (7) are detachably connected by a connector adapted to the connecting holes (72). The connecting holes (72) are arranged at least along the extension direction of the slot.

10. A lifting and hoisting tool as described in claim 9, characterized in that, The adapter mechanism (63) includes an adapter seat (631) and a transition seat (632). The adapter seat (631) is hinged to the linkage mechanism (62). The adapter seat (631) can keep its bottom surface horizontal during the rotation of the linkage mechanism (62). The bottom of the transition seat (632) is hinged to the pressure block mechanism (64).

11. A lifting and hoisting tool as described in claim 10, characterized in that, The adapter (631) and / or the transition seat (632) are arranged with mounting holes (633). The adapter (631) and the transition seat (632) are detachably connected by a connector adapted to the mounting holes (633). In the same arrangement direction, the distance between adjacent mounting holes (633) is smaller than the distance between adjacent connecting holes (72).

12. A lifting and hoisting tool as described in claim 10, characterized in that, The pressing mechanism (64) includes a balance seat (641) and a pressure plate (642). The balance seat (641) is hinged to the bottom of the transition seat (632). One or more pressure plates (642) are hinged to the bottom of the balance seat (641) around an axis that is perpendicular to the extension direction of the slot (71).

13. A hoisting system, characterized in that, The lifting device includes a lifting device as described in any one of claims 1-12, wherein an electrical control cabinet (8) and a power system (9) are provided on the lifting platform (1), and the power system (9) is capable of controlling the lifting and lowering of the lifting and suspending mechanism (3).

Images