Hoisting device

Abstract

The utility model relates to wind power equipment technical field provides a kind of hoisting device, hoisting device includes main beam, vice beam and hoist subassembly, vice beam is arranged at the end of main beam, vice beam is provided with guide rail and multiple lifting points, guide rail extends along the length direction of vice beam, all lifting points are arranged in the extension direction of guide rail and are spaced apart in the side of guide rail;Hoist subassembly is detachably arranged in one of multiple lifting points, and position switching can be carried out between multiple lifting points along guide rail, and hoist subassembly is used to fix blade.The hoisting device provided by the utility model is used to solve the defects that the position adjustment of existing ring chain electric hoist needs to rely on additional hoisting equipment, the linear movement path provided by guide rail allows hoist subassembly to quickly switch position, which can reduce the auxiliary equipment and manual intervention time required by traditional adjustment;When operating in high altitude or limited space, the physical guiding and limiting effect of guide rail can avoid accidental deviation and falling of hoist subassembly, and can effectively reduce safety risk.

Description

Technical Field

[0001] This utility model relates to the field of wind power equipment technology, and in particular to a hoisting device. Background Technology

[0002] With the rapid development of the wind power industry towards high-power units, the length of wind turbine blades has increased significantly, with mainstream blades exceeding 80 meters and some models reaching the 100-meter level. The weight of a single blade exceeds 30 tons, which limits the traditional overall hoisting method, making single-blade hoisting technology the mainstream. Existing hoisting equipment typically includes a main frame beam, two end sub-beams, and a chain electric hoist at the bottom of the sub-beams. To accommodate different blade models, the sub-beams are equipped with multiple hanging slots for the chain electric hoist to install via the hanging shaft.

[0003] However, electric chain hoists are quite heavy, and adjusting their position on the sub-beam requires additional lifting equipment (such as auxiliary cranes or specialized lifting tools) for handling and re-secured. This process not only increases the complexity of on-site operations but also prolongs the preparation time of the lifting equipment, making operation extremely inconvenient in confined spaces or high-altitude working environments. Utility Model Content

[0004] This utility model provides a hoisting device to solve the defect that the position adjustment of the electric chain hoist in the prior art requires additional hoisting equipment. The linear movement path provided by the guide rail allows the hoisting components to switch positions quickly, which can reduce the auxiliary equipment and manual intervention time required for traditional adjustment. When working at height or in confined spaces, the physical guiding and limiting function of the guide rail can prevent the hoisting components from accidentally shifting and falling, which can effectively reduce safety risks.

[0005] The hoisting device provided by this utility model includes: Main beam; A secondary beam is provided at the end of the main beam. The secondary beam is provided with a guide rail and multiple lifting points. The guide rail extends along the length direction of the secondary beam, and all the lifting points are spaced apart on one side of the guide rail along the extension direction of the guide rail. A lifting assembly, detachably mounted on one of the plurality of lifting points, and capable of switching positions between the plurality of lifting points along the guide rail, is used to secure the blade.

[0006] According to the hoisting device provided by this utility model, the hoisting assembly includes: Lifting components are used to secure the blades; Fixed components, including: A fixing seat is provided on the top of the lifting component, and a first shaft hole is provided on the side of the fixing seat away from the lifting component; A moving component is disposed on the fixed base and is adapted to move along the guide rail; A fixed shaft passes through the first shaft hole and one of the plurality of lifting points, and the fixed shaft is used to fix the position of the fixed seat relative to the guide rail.

[0007] According to the hoisting device provided by this utility model, the moving component includes: A fixed ring is fixed at the first shaft hole and is coaxially arranged with the first shaft hole; the fixed shaft passes through the first shaft hole and the fixed ring. A moving ring is sleeved on the outside of the fixed ring and rotates in conjunction with the fixed ring, and the moving ring is adapted to rotate along the guide rail.

[0008] According to the hoisting device provided by this utility model, the secondary beam includes: The main body is located at the end of the main beam; A first side plate is provided on the lower side of the main body. The first side plate has a plurality of second shaft holes spaced apart along its own length. The second shaft holes are used to form the lifting points. The second side plate is disposed on the first side plate and is set at an angle to the first side plate, and extends in the same direction as the first side plate. The second side plate is used to form the guide rail.

[0009] According to the hoisting device provided by this utility model, the secondary beam further includes: A limiting member is provided at least one of the main body, the first side plate, and the second side plate, and the limiting member is located at both ends of the guide rail. The limiting member is used to limit the displacement of the moving member.

[0010] According to the hoisting device provided by this utility model, the hoisting component includes: A first unhooking component is connected to the lower part of the fixed base, and the first unhooking component is provided with a first position detection component; The second unhooking component is connected to the lower part of the fixed base and is spaced apart from the first unhooking component to limit the suspension space. The second unhooking component is provided with a second position detection element. A telescopic drive component is electrically connected to the first position detection component and the second position detection component, respectively. The first position detection component and the second position detection component are used to detect the position of the telescopic rod of the telescopic drive component. In a first working condition, the telescopic drive component is retracted into the interior of the first unhooking component. In a second working condition, the telescopic drive component extends out of the first unhooking component and passes through the suspension space and the second unhooking component. In the second operating condition, one end of the sling is located within the suspension space and suspended from the telescopic drive component.

[0011] The hoisting device provided by this utility model further includes a clamping assembly, which includes: A base is provided on one of the main beam and the secondary beam; A crossbeam, one end of which is rotatably connected to the bottom end of the base, has multiple limiting holes spaced apart along its length. A drive cylinder is rotatably connected at one end to the top of the base and at the other end to the crossbeam. The drive cylinder is used to drive the crossbeam to rotate relative to the base. A pressure plate component is provided on the crossbeam and can switch positions along the crossbeam between multiple limiting holes. The pressure plate component is used to press the blade.

[0012] According to the hoisting device provided by this utility model, the clamping assembly further includes: A third position detection element is disposed on the base and electrically connected to the drive cylinder. The third position detection element is used to detect the position of the crossbeam relative to the base.

[0013] The hoisting device provided by this utility model further includes a connecting assembly, which comprises: A connector, which is connected to the main beam, is used to connect lifting equipment; A load detection element is disposed between the connector and the main beam, and the load detection element is used to detect the load of the hoisting device.

[0014] The hoisting device provided by this utility model also includes an inclination angle detection component, which is disposed on the main beam and is used to detect the inclination angle of the hoisting device; when the inclination angle of the hoisting device is greater than a preset threshold, the inclination angle detection component issues an alarm message.

[0015] The lifting device provided by this utility model, through the coordinated design of the guide rail and lifting points, enables the lifting components to slide conveniently and be precisely positioned on the sub-beam, thereby improving the adaptability and operational efficiency of the lifting device. Specifically, the linear movement path provided by the guide rail allows the lifting components to quickly switch positions, thus reducing the auxiliary equipment (such as auxiliary cranes) and manual intervention time required for traditional adjustments; when operating at heights or in confined spaces, the physical guiding and limiting function of the guide rail can prevent the lifting components from accidentally shifting or falling, effectively reducing safety risks.

[0016] Compared to the prior art method of re-suspending the electric chain hoist between the hanging slots via a hanging shaft, this invention eliminates the cumbersome steps of disassembly and secondary hoisting, reducing efficiency losses and potential accidents caused by handling heavy hoists. Therefore, the hoisting device provided by this invention not only shortens the preparation cycle of the hoisting equipment but also reduces operating costs by minimizing equipment dependence, while enhancing compatibility with different blade models, providing a more efficient and safer solution for the hoisting of large wind turbine blades. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the axonal structure of the hoisting device provided in this embodiment of the utility model.

[0019] Figure 2 This is a partial structural schematic diagram of the sub-beam and lifting assembly provided in an embodiment of this utility model.

[0020] Figure 3 This is a partial cross-sectional structural diagram of the lifting assembly and sub-beam provided in an embodiment of the present invention from one perspective.

[0021] Figure 4 This is a partial cross-sectional structural diagram of the lifting assembly and sub-beam provided in an embodiment of the present invention from another perspective.

[0022] Figure 5 This is a partial enlarged structural schematic diagram of the secondary beam provided in an embodiment of this utility model.

[0023] Figure 6 This is a schematic diagram of the axial structure of the unhooking component provided in this embodiment of the utility model.

[0024] Figure 7 This is a cross-sectional structural diagram of the unhooking component provided in an embodiment of the present invention.

[0025] Figure 8 This is a schematic diagram of the axial structure of the clamping assembly provided in this embodiment of the utility model.

[0026] Figure 9 This is a partial structural diagram of the connecting component and the main beam provided in an embodiment of the present invention.

[0027] Figure 10This is a partial structural schematic diagram of the main beam and tilt detection component provided in this embodiment of the utility model.

[0028] Figure label: 100: Main beam; 200: Secondary beam; 210: Guide rail; 220: Lifting point; 230: Main body; 240: First side plate; 250: Second side plate; 260: Limiting component; 300: Lifting assembly; 310: Lifting component; 311: First disengagement component; 3111: First connecting plate; 3112: First annular shell; 312: First position detection component; 313: Second disengagement component; 3131: Second connecting plate; 3132: Second annular shell; 314: Second position detection component; 315: Suspension space; 316: Telescopic drive component 317: Sling; 320: Lifting component; 330: Fixing component; 331: Fixing seat; 3311: First shaft hole; 332: Moving component; 3321: Fixed ring; 3322: Moving ring; 333: Fixed shaft; 400: Clamping assembly; 410: Base; 420: Crossbeam; 421: Limiting hole; 430: Drive cylinder; 440: Pressure plate component; 441: Pressure plate; 442: Universal adjusting rod; 450: Third position detection component; 500: Connecting assembly; 510: Connector; 520: Load detection component; 600: Tilt angle detection component. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0030] In the description of the embodiments of this application, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this application based on the specific circumstances.

[0031] In the embodiments of this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0032] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the embodiments of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0033] Figure 1 This is a schematic diagram of the axonometric structure of the hoisting device provided in this embodiment of the utility model; Figure 2 This is a partial structural schematic diagram of the sub-beam and lifting assembly provided in an embodiment of this utility model.

[0034] See Figure 1 and Figure 2 This utility model embodiment provides a hoisting device, which includes a main beam 100 and secondary beams 200 disposed at both ends of the main beam 100. The secondary beams 200 are provided with guide rails 210 and multiple hoisting points 220 spaced apart on one side of the guide rails 210. The following explanation uses the secondary beam 200 on one side of the main beam 100 as an example. The secondary beam 200 on the other side of the main beam 100 can be directly set up by reference. The secondary beam 200 and the main beam 100 can be fixedly connected or detachably connected. Optionally, the main beam 100 is provided with multiple different mounting positions, and the secondary beam 200 can be installed on the main beam 100 by selecting one of the multiple mounting positions. The specific selection can be made according to the actual situation.

[0035] Specifically, the guide rail 210 is a linear structure, and its extension direction is consistent with the length direction of the sub-beam 200. The lifting points 220 are arranged on the side of the guide rail 210, which can be on the upper side or the lower side of the guide rail 210. In an optional example, the lifting points 220 can also be provided on both the upper and lower sides of the guide rail 210. In this case, the positions of the lifting points 220 on the upper and lower sides need to correspond. The lifting points 220 are used to form installation positions for positioning the lifting assembly 300.

[0036] The lifting assembly 300 is detachably fixed to one of the lifting points 220 and can slide or roll along the guide rail 210, thereby switching positions among multiple lifting points 220 to adapt to the fixing requirements of different blade models. In an optional example, the guide rail 210 can be an I-beam rail or a T-slot structure, and the lifting points 220 can be designed as an array of evenly spaced threaded holes or through holes for easy standardized manufacturing.

[0037] In another optional embodiment, the lifting assembly 300 includes an electric chain hoist or a manual chain hoist, with a slider structure on its top that slides in cooperation with the guide rail 210. It moves along the guide rail 210 by manual or electric drive. The slider integrates a locking mechanism (such as a pin or fastening bolt). When the lifting assembly 300 slides to the target lifting point 220, the locking mechanism can be inserted into the hole of the lifting point 220 to fix it, thereby ensuring the stability of the lifting assembly 300 during the lifting process.

[0038] In use, the operator determines the target position of the lifting assembly 300 on the sub-beam 200 based on the model and center of gravity parameters of the blade to be lifted. First, the locking mechanism of the lifting assembly 300 is released to disengage it from the current lifting point 220; then, the operator manually or with simple tools pushes the lifting assembly 300 so that it slides along the guide rail 210 to the vicinity of the target lifting point 220.

[0039] Because the guide rail 210 provides linear guidance, the movement of the lifting assembly 300 is smooth and controllable, without the need for heavy equipment such as cranes. Upon reaching the target position, the locking mechanism inserts into and tightens the lifting point 220 hole, firmly fixing the lifting assembly 300 and completing the position change. At this point, the lifting assembly 300 (such as a hoist) is connected to the blades via the sling 317, and the blades are fixed by tightening the sling 317.

[0040] See Figure 1 and Figure 2It is understood that in the lifting device provided by this utility model embodiment, the coordinated design of the guide rail 210 and the lifting point 220 enables the lifting component 300 to slide conveniently and be precisely positioned on the sub-beam 200, thereby improving the adaptability and operational efficiency of the lifting device. Specifically, the linear movement path provided by the guide rail 210 allows the lifting component 300 to quickly switch positions, thus reducing the auxiliary equipment (such as auxiliary cranes) and manual intervention time required for traditional adjustments; when operating at heights or in confined spaces, the physical guiding and limiting function of the guide rail 210 can prevent the lifting component 300 from accidentally shifting or falling, effectively reducing safety risks.

[0041] Compared to the prior art method of re-suspending the electric chain hoist between the hanging slots via a hanging shaft, this embodiment of the invention saves the cumbersome steps of disassembly and secondary hoisting, reducing efficiency losses and potential accidents caused by handling heavy hoists. Therefore, the hoisting device provided by this embodiment not only shortens the preparation cycle of the hoisting equipment but also reduces operating costs by reducing equipment dependence, while enhancing compatibility with different blade models, providing a more efficient and safer solution for the hoisting of large wind turbine blades.

[0042] Figure 3 This is a partial cross-sectional structural diagram of the lifting assembly and sub-beam provided in an embodiment of the present invention from one perspective; Figure 4 This is a partial cross-sectional structural diagram of the lifting assembly and sub-beam provided in an embodiment of the present invention from another perspective.

[0043] See Figure 3 and Figure 4 The lifting assembly 300 includes a lifting component 310 and a fixing component 330. The lifting component 310 is used to connect and fix the blades (e.g., via a hoist, sling 317, or clamp). The fixing component 330 includes a fixing seat 331, a moving component 332, and a fixing shaft 333. The fixing seat 331 is located on the top of the lifting component 310, and a first shaft hole 3311 is formed on the side away from the lifting component 310. The moving component 332 is integrated into the fixing seat 331, and the moving component 332 slides or rolls with the guide rail 210 of the sub-beam 200 so that the lifting assembly 300 can translate along the guide rail 210. The fixing shaft 333 passes through the first shaft hole 3311 and the target holes in the plurality of lifting points 220, and is used to lock the position of the fixing seat 331 relative to the sub-beam 200. In other words, in this embodiment, the fixing shaft 333 is equivalent to the locking mechanism exemplified in the previous embodiment.

[0044] In one alternative example, the moving part 332 can be a translation mechanism with rollers or sliders, and the guide rail 210 can be an I-beam or T-slot structure to provide a linear guide path; in another alternative example, the fixed shaft 333 can be designed as a pin or a fastening bolt with a handle, which is inserted into the hole of the lifting point 220 and fixed by threads or clips.

[0045] In use, the operator determines the target lifting point 220 of the lifting assembly 300 based on the position of the blade's center of gravity. First, the locking state of the fixed shaft 333 is released (e.g., by pulling out the pin or loosening the bolt). At this time, the fixed seat 331 maintains a sliding or rolling connection with the guide rail 210 through the moving part 332 at the bottom. Then, the fixed seat 331 is pushed along the guide rail 210, and the roller or slider of the moving part 332 moves smoothly within the guide rail 210, so that the lifting assembly 310 is accurately positioned near the target lifting point 220. After positioning, the fixed shaft 333 is inserted into the first shaft hole 3311 of the fixed seat 331 and the hole of the target lifting point 220, and rigid fixation is achieved by tightening the bolt or locking the pin mechanism.

[0046] In one optional embodiment, the moving part 332 is an electric drive module (such as a small linear motor) that controls its movement on the guide rail 210 via remote control, while the fixed shaft 333 is replaced by an electromagnetic lock that automatically attaches to and fixes itself to the suspension point 220 when powered on.

[0047] See Figure 3 and Figure 4 It is understood that in the lifting device provided by this utility model embodiment, the sliding cooperation between the moving part 332 and the guide rail 210, combined with the hole locking mechanism of the fixed shaft 333, effectively simplifies the position adjustment process of the lifting component 310. Specifically, the translational capability of the moving part 332 along the guide rail 210 allows the lifting component 310 to quickly switch fixed positions, and position adjustment can be completed with only manpower or simple tools, reducing the cumbersome steps of disassembling, handling, and reinstalling the electric chain hoist that rely on auxiliary lifting equipment in traditional solutions. When working at height, the physical constraint of the guide rail 210 prevents the lifting component 310 from accidentally shifting, while the mechanical locking of the fixed shaft 333 ensures that the lifting force is stably transmitted to the blade support point.

[0048] Compared to the prior art where electric chain hoists require re-suspension between hanging slots via a hanging shaft, the lifting device provided in this embodiment reduces the safety risks and time losses associated with handling heavy equipment. In high-altitude or confined space environments, its ease of operation and safety are improved. Therefore, this structure not only shortens the preparation time of the lifting equipment and reduces operating costs, but also enhances the flexibility to adapt to different blade models through modular design.

[0049] Continue reading Figure 3 and Figure 4In an optional embodiment of this utility model, the moving component 332 includes a fixed ring 3321 and a moving ring 3322; the fixed ring 3321 is fixed at the first shaft hole 3311 of the fixed base 331 and is coaxially arranged with the first shaft hole 3311; the fixed shaft 333 passes through the first shaft hole 3311 and the fixed ring 3321 in sequence; the moving ring 3322 is sleeved on the outside of the fixed ring 3321, and the two achieve relative rotation through rotational cooperation, so that the moving ring 3322 can translate along the guide rail 210.

[0050] In one optional embodiment, the fixed ring 3321 is fixed to the outside of the first shaft hole 3311 by welding or bolting, and its inner diameter is clearance-fitted with the fixed shaft 333; the inner wall of the rotating ring 3322 is embedded with a bearing or a self-lubricating bushing, forming a rotating pair with the outer wall of the fixed ring 3321; in another optional embodiment, a ball or needle roller structure can be provided between the rotating ring 3322 and the fixed ring 3321 to reduce frictional resistance and make sliding easier. Alternatively, a single bearing can be used as the combination structure of the fixed ring 3321 and the rotating ring 3322, with the inner ring of the bearing serving as the fixed ring 3321 and the outer ring of the bearing serving as the rotating ring 3322.

[0051] In use, the operator pulls out the fixed shaft 333 to unlock it and manually pushes the fixed seat 331. At this time, the moving ring 3322 rotates along the fixed ring 3321, converting the linear movement of the lifting component 310 into rotational motion and reducing the pushing resistance. The guide rail 210 provides linear constraints on the translational path of the moving ring 3322, ensuring that the lifting component 310 slides smoothly to the vicinity of the target lifting point 220. After positioning, the fixed shaft 333 is inserted into the first shaft hole 3311, the fixed ring 3321, and the first shaft hole 3311 at the target location, and is rigidly fixed by threaded fastening or pin locking.

[0052] See Figure 3 and Figure 4 It is understood that in the lifting device provided by this utility model embodiment, the linear sliding of the lifting component 310 is transformed into low-resistance movement through the rotational cooperation of the fixed ring 3321 and the moving ring 3322, effectively reducing the operational intensity of position adjustment. Specifically, the rotational mechanism of the moving ring 3322 along the fixed ring 3321 can reduce frictional resistance, allowing operators to easily push the heavy lifting component 310, avoiding the cumbersome process of relying on auxiliary equipment to move the electric chain hoist in traditional solutions; when working at height, the rotating structure can prevent the lifting component 310 from jamming, improving the smoothness of operation.

[0053] Compared to the prior art where electric chain hoists need to be disassembled and resuspended in the hanging slot, the hoisting device provided in this embodiment eliminates the need for heavy equipment handling, shortens adjustment time, and reduces the risks of working at heights. Therefore, this structure not only improves hoisting efficiency but also enhances adaptability to different working environments through modular rotating components.

[0054] Figure 5 This is a partial enlarged structural schematic diagram of the secondary beam provided in an embodiment of this utility model.

[0055] See Figure 5 In an optional embodiment of this utility model, the secondary beam 200 includes a main body 230, a first side plate 240, and a second side plate 250. The main body 230 is disposed at the end of the main beam 100 and serves as the load-bearing base of the secondary beam 200; the first side plate 240 is fixed to the lower side of the main body 230 and has a plurality of second shaft holes spaced apart along its length, which form the aforementioned array of lifting points 220; the second side plate 250 is disposed on the first side plate 240 and is set at an angle to the first side plate 240, and the second side plate 250 extends in the same direction as the first side plate 240, forming a guide rail 210 for the lifting assembly 300 to slide.

[0056] In one optional embodiment, the main body 230 adopts a box beam structure to enhance rigidity. The first side plate 240 is fixed to the bottom of the main body 230 by welding or bolting. Its second shaft hole is designed as an evenly distributed circular through hole or threaded hole for inserting a fixed shaft 333. The second side plate 250 is perpendicularly connected to the first side plate 240 at 90° and is located on the lower side of the first side plate 240. The second side plate 250 and the first side plate 240 form an inverted T-shaped or L-shaped connection structure. The cross-section of the guide rail 210 formed by the second side plate 250 can be selected as a plane, an inverted T-shaped groove, or a dovetail groove.

[0057] In one optional example, the surface of the guide rail 210 of the second side plate 250 may be coated with a wear-resistant coating to reduce frictional resistance; in another optional example, the second side plate 250 and the first side plate 240 may be integrally cast and the guide groove structure may be directly formed by machining to avoid assembly errors.

[0058] It should be noted that the included angle between the first side plate 240 and the second side plate 250 can be 90° as in the previous example, or it can be other included angles, such as 45°, 60°, etc.; the position of the second side plate 250 relative to the second shaft hole can also be located above the second shaft hole.

[0059] It should also be noted that the first side panel 240 and the second side panel 250 can be installed individually or in pairs, such as... Figure 5 As shown, the main body 230 has two first side plates 240 and two second side plates 250 arranged opposite each other on its lower side. Figure 4As shown, the aforementioned fixing component 330 is located between the two first side plates 240 and between the two second side plates 250. In this case, the first side plates 240 and the second side plates 250 can evenly support and limit the fixing component 330 from both sides, which can improve the stability and load-bearing capacity of the mechanism.

[0060] It should also be noted that when the first side plate 240 and the second side plate 250 are arranged in pairs, the fixing base 331 can also be configured as a structure in which two spacer plates are fixed relative to each other. Figure 4 The image shows a fixing seat 331, which is fixed and constrained by two plates by fasteners such as bolts. The fixing seat 331 is located between two first side plates 240. In some alternative cases, the two plates that constrain the fixing seat 331 can also be clamped on the outside of the two first side plates 240. In this case, the guide rail 210 formed by the second side plate 250 needs to be located on the outside of the two first side plates 240.

[0061] In use, after selecting the target lifting point 220 based on the blade's center of gravity, the operator first releases the locking state of the fixed shaft 333 (e.g., by loosening the bolts or pulling out the pin). At this time, the moving part 332 (e.g., the moving ring 3322) of the lifting assembly 300 slides along the guide rail 210 of the second side plate 250, driving the fixed seat 331 and the lifting component 310 to move to the vicinity of the target second shaft hole. After positioning, the fixed shaft 333 sequentially passes through the first shaft hole 3311 of the fixed seat 331, the fixed ring 3321 of the moving part 332, and the target second shaft hole of the first side plate 240, achieving rigid locking through threaded fastening or a pin mechanism.

[0062] See Figure 3 and Figure 4 It is understood that in the lifting device provided by this utility model embodiment, the second shaft hole array of the first side plate 240 and the guide rail 210 of the second side plate 250 work together to achieve the dual functions of precise positioning of the lifting point 220 and low-resistance movement of the lifting component 300. Specifically, the linear constraint of the guide rail 210 makes the adjustment of the heavy lifting component 310 (such as a chain electric hoist) more convenient, saving the cumbersome process of disassembly and transportation that relies on auxiliary lifting equipment; at the same time, the direct pin fixing mechanism of the second shaft hole can ensure that the load transmission path is stable and reliable.

[0063] Compared to the hanging groove and hanging shaft matching method in the prior art, the hoisting device provided in this embodiment of the utility model can avoid the risk of the hanging shaft accidentally coming off, and the load distributed by the guide rail 210 can reduce the probability of deformation of the lifting point 220 hole. Therefore, the sub-beam 200 structure not only improves the safety and efficiency of hoisting operations, but also enhances adaptability to frequent position adjustments through integrated design, reducing long-term equipment maintenance costs.

[0064] See Figure 3 and Figure 5 In an optional embodiment of the present invention, the sub-beam 200 further includes a limiting member 260, which is disposed on at least one of the main body 230, the first side plate 240 or the second side plate 250 and located at both ends of the guide rail 210, for limiting the displacement range of the moving member 332.

[0065] Specifically, the limiting member 260 serves as a terminal protection device for the travel of the guide rail 210, preventing the moving part 332 from sliding out of the effective travel of the guide rail 210 through mechanical constraint. For example, the limiting member 260 can be a rectangular steel block welded to both ends of the guide rail 210 on the second side plate 250, with its height slightly higher than the surface of the guide rail 210. When the moving part 332 (such as the moving ring 3322) slides to the end, it contacts the block and stops. In another optional embodiment, the limiting member 260 adopts an adjustable bolt structure, and the extension length can be adjusted by screwing the bolt into the threaded hole of the first side plate 240 or the second side plate 250 to control the maximum displacement range of the moving part 332. In yet another optional embodiment, the limiting member 260 can be a limiting plate disposed on the main body 230. The limiting plate is located at both ends of the guide rail 210 and extends downward from the main body 230 to the moving path of the moving part 332, thereby achieving mechanical limitation of the moving part 332.

[0066] When the operator pushes the fixed base 331 to move the moving part 332 along the guide rail 210, the moving part 332 (such as the moving ring 3322) slides within the guide rail 210 via rollers or sliders. If the moving part 332 approaches the end of the guide rail 210, the limiting member 260 forces it to stop moving by physical obstruction: for example, a welded stop block directly collides with the moving part 332, or the end of an adjustable bolt abuts against the side of the moving part 332. This process requires no additional operational intervention; the position is automatically limited by mechanical constraints.

[0067] See Figure 3 and Figure 5 It is understood that in the lifting device provided by this utility model embodiment, the mechanical constraint of the limiting members 260 at both ends of the guide rail 210 can reduce the risk of derailment of the moving part 332 and improve the safety and reliability of the lifting operation. Specifically, the rigid limiting mechanism of the limiting plate, welded stop block or adjustable bolt can ensure that the lifting assembly 300 does not exceed the effective working range when adjusting its position, and can avoid lifting imbalance or equipment damage due to excessive displacement. In addition, when operating in high-altitude strong wind environment or narrow space, the limiting member 260 can prevent the moving part 332 from accidentally derailing due to external force, and can ensure that the lifting assembly 300 is always within the design stroke, avoiding collision with other structures of the sub-beam 200, and reducing the probability of safety accidents caused by equipment displacement. In addition, the adjustable bolt embodiment allows for flexible adjustment of the limiting position according to the actual working conditions, enhancing the adaptability to the lifting requirements of different blades, and optimizing stroke control without replacing parts.

[0068] Figure 6 This is a schematic diagram of the axial structure of the unhooking component provided in this embodiment of the utility model; Figure 7 This is a cross-sectional structural diagram of the unhooking component provided in an embodiment of the present invention.

[0069] See Figure 1 , Figure 6 and Figure 7 In an optional embodiment of this utility model, the lifting component 310 includes a disengaging component and a lifting component 320. The disengaging component includes a first disengaging member 311, a second disengaging member 313, a telescopic drive component 316, and a sling 317. The first disengaging member 311 is connected to the lower part of the fixed base 331 and is provided with a first position detection element 312 (such as a limit switch, photoelectric sensor, or proximity switch). The second disengaging member 313 is arranged opposite to the first disengaging member 311 at intervals to form a suspension space 315 and is provided with a second position detection element 314.

[0070] The telescopic drive component 316 (such as an electric actuator or hydraulic cylinder) is electrically connected to the first position detection component 312 and the second position detection component 314, respectively, and the displacement state of the telescopic rod is monitored in real time through the first position detection component 312 and the second position detection component 314. There are two specific working conditions: In the first working condition, the telescopic rod of the telescopic drive component 316 is retracted into the first disengagement component 311; In the second working condition, the telescopic rod of the telescopic drive component 316 extends and passes through the suspension space 315 and the second disengagement component 313 in sequence, at which time one end of the sling 317 is suspended on the telescopic rod.

[0071] In use, the operator activates the telescopic drive component 316 through the control system. In the second working condition, the telescopic rod extends from the first unhooking component 311; when the telescopic rod or extension rod of the telescopic drive component 316 enters the suspension space 315, one end of the sling 317 is placed on the path of the telescopic rod or extension rod; the telescopic rod or extension rod continues to extend until it passes through the second unhooking component 313, at which point the second position detection component 314 confirms that the telescopic rod is in place and triggers a locking signal, preventing the telescopic drive component 316 from extending further.

[0072] After hoisting is completed, the system switches to the first working condition (unhooking process). The operator can remotely activate the telescopic drive component 316 through the control system to automatically unhook the sling 317 in the air, separating the hoisting device from the blade. Specifically, the telescopic rod of the telescopic drive component 316 retracts into the first unhooking component 311, and the sling 317 is released from the suspended state. At this time, the first position detection component 312 confirms whether the telescopic rod has completely retracted into the first unhooking component 311. This process ensures the accuracy of the telescopic rod movement through dual position detection, avoiding accidental detachment of the sling 317 due to displacement deviation.

[0073] Specifically, the first unhooking member 311 and the second unhooking member 313 form an approximately "convex"-shaped bracket structure. The first unhooking member 311 comprises a first connecting plate 3111 and a first annular housing 3112, the first connecting plate 3111 is connected to the lower part of the fixing base 331, the first annular housing 3112 is arranged on a side of the first connecting plate 3111 away from the second unhooking member 313, and a through hole communicating with the first annular housing 3112 is provided on the first connecting plate 3111.

[0074] The second unhooking member 313 comprises a second connecting plate 3131 and a second annular housing 3132, the second connecting plate 3131 is connected to the lower part of the fixing base 331 and arranged at an interval from the first connecting plate 3111, and the two can form an "∩"-shaped structure via bolts, a suspension space 315 is defined between the first connecting plate 3111 and the second connecting plate 3131, the second annular housing 3132 is arranged on a side of the second connecting plate 3131 away from the first connecting plate 3111, and a through hole communicating with the second annular housing 3132 is provided on the second connecting plate 3131, that is, the first annular housing 3112 and the second annular housing 3132 extend outward on the basis of the aforementioned "∩"-shaped structure, thereby forming an approximately "convex"-shaped bracket structure, a first position detecting member 312 is embedded in an inner wall of the first annular housing 3112, a second position detecting member 314 is embedded in an inner wall of the second annular housing 3132, and a spacing between the first connecting plate 3111 and the second connecting plate 3131 can accommodate the width of a sling 317.

[0075] The telescopic driving member 316 can be configured as an air cylinder or a hydraulic cylinder with an extension rod, the telescopic driving member 316 is arranged inside the first annular housing 3112, a piston rod of the telescopic driving member 316 faces the second connecting plate 3131, and in a second working condition, the piston rod of the telescopic driving member 316 extends out of the first annular housing 3112 and passes through the first connecting plate 3111, the suspension space 315, the second connecting plate 3131 and the second annular housing 3132 in sequence. In an alternative example of the present utility model, the position detecting member can be replaced with a Hall sensor or a mechanical limit switch, and the telescopic driving member 316 can also adopt a linear motor.

[0076] In an alternative example of the present utility model, corresponding limit surfaces can be provided on the telescopic driving member 316, the first annular housing 3112 and the second annular housing 3132, for example, a flange surface of the telescopic driving member 316, a flange surface of the first annular housing 3112 and a flange surface of the second annular housing 3132, these limit surfaces are used to form mechanical limits between the telescopic driving member 316, the first annular housing 3112 and the second annular housing 3132, so as to prevent the telescopic rod or the extension rod of the telescopic driving member 316 from over-extending and causing the sling 317 and blades to fall, and the specific position of the limit surfaces can be adaptively selected according to actual conditions.

[0077] It should be noted that if the two ends of the sub-beam 200 are respectively equipped with unhooking components, and the two unhooking components are respectively connected to the two ends of the same sling 317, in this case, when using the unhooking components to unhook, in order to prevent the sling 317 from falling and injuring people, the sling 317 needs to be fixed to the unhooking component on at least one side. In other words, when using the unhooking component on one side, the unhooking component on the other side will automatically lock and cannot be used.

[0078] In an optional embodiment of this utility model, the first position detection element 312 and the second position detection element 314 can also work together to monitor the real-time travel of the telescopic rod and detect the extension and retraction of the telescopic rod of the telescopic drive component 316 in real time. If the telescopic rod is detected to have not reached the predetermined position (such as due to mechanical jamming), the system can automatically stop the action and issue an alarm.

[0079] See Figure 6 and Figure 7 It is understood that the lifting device provided in this embodiment of the present invention, through the dual monitoring mechanism of the first position detection element 312 and the second position detection element 314, can improve the reliability and safety of the unhooking operation. Specifically, the feedback of the first position detection element 312 and the second position detection element 314 on the travel of the telescopic rod of the telescopic drive component 316 can prevent the sling 317 from failing to secure itself due to overextension or incomplete extension, and can reduce the risk of blades falling due to equipment failure during the lifting process.

[0080] Compared to the prior art, the hoisting device provided in this embodiment of the invention, through the synergistic effect of mechanical and electrical systems, can form redundant protection at the displacement detection level, effectively avoiding safety accidents caused by misoperation or component failure in high-altitude, strong wind environments. Therefore, this structure not only optimizes the accuracy of the unhooking action but also enhances adaptability to complex working conditions through modular detection units, providing a higher level of safety assurance for the hoisting of large blades.

[0081] In an optional embodiment of this utility model, the lifting component 320 includes a hoist, which is used to tighten the sling 317 and adjust the lifting angle of the blades. The hoist can be a manual hoist or an electric hoist. During installation, the hoist can be placed between the unhooking component and the fixed seat 331. The hoist drives the unhooking component to move up and down, thereby tightening or loosening the sling 317. One hoist can be set at each of the four corners of the lifting device, or only one hoist can be set on a single side of the secondary beam 200. It can be set adaptively according to actual needs. For example, the unhooking component can be installed under the hoist or directly on the secondary beam 200. When the unhooking component is installed on the secondary beam 200, the entire lifting device only needs to use a minimum of two hoists.

[0082] Figure 8This is a schematic diagram of the axial structure of the clamping assembly provided in this embodiment of the utility model.

[0083] See Figure 1 and Figure 8 In an optional embodiment of this utility model, the clamping assembly 400 is used to clamp the blades, ensuring that the blades are stably clamped during hoisting and preventing slippage or shaking. The clamping assembly 400 includes a base 410, a crossbeam 420, a drive cylinder 430, and a pressure plate component 440. The base 410 is fixed to the main beam 100 or the secondary beam 200 (e.g., connected to the web of the main beam 100 by bolts), and one end of the crossbeam 420 is rotatably connected to the bottom end of the base 410 via a hinge shaft, allowing the crossbeam 420 to rotate around the hinge shaft.

[0084] The crossbeam 420 has multiple limiting holes 421 spaced apart along its length (such as an array of equally spaced circular through holes or threaded holes). One end of the drive cylinder 430 is hinged to the top of the base 410, and the other end is hinged to the middle of the crossbeam 420 or a specific connecting lug. The drive cylinder 430 drives the crossbeam 420 to rotate around the bottom of the base 410 through telescopic movement. The pressure plate component 440 is mounted on the crossbeam 420 and can slide along the length of the crossbeam 420 to different positions of the limiting holes 421 and be fixed by pins or fastening bolts, for direct contact and pressing of the blade surface.

[0085] In use, the operator determines the target position of the pressure plate component 440 based on the blade's curved surface shape. First, the pressure plate component 440 is released from its fixed position (e.g., by pulling out the locating pin or loosening the bolts). The pressure plate component 440 is then manually or with a simple tool slid along the crossbeam 420 to near the target limiting hole 421, and the locating pin is reinserted to complete the locking. Next, the drive cylinder 430 is activated (if the hydraulic system provides pressure). The drive cylinder 430 extends, pushing the crossbeam 420 downwards around the bottom of the base 410, causing the pressure plate component 440 to press against the blade surface. After the pressure plate 441 contacts the blade, the drive cylinder 430 continues to apply pressure until the preset pressure value is reached, at which point the blade is securely clamped. To accommodate blades with different curvatures, the above steps can be repeated to adjust the position of the pressure plate 441 on the crossbeam 420, ensuring that the pressure plate 441 is always perpendicular to the blade contact point to avoid localized stress concentration.

[0086] For example, the base 410 can be a steel plate structure fastened to the main beam 100, and the drive cylinder 430 can be a hydraulic cylinder or an electric push rod; the pressure plate component 440 includes a sliding base with nylon rollers, which can move along a preset track on the crossbeam 420, and the sliding base is locked at the target limiting hole 421 by locking bolts. In an optional embodiment of this utility model, the pressing assembly 400 also includes a pin sensor at the connection between the drive cylinder 430 and the crossbeam 420. The pin sensor is used to measure the pressure value of the pressing assembly 400. If the pressure reaches the set value, the drive cylinder 430 automatically stops, and at this time the drive cylinder 430 cannot continue to extend and can only retract.

[0087] See Figure 8 It is understood that in the lifting device provided by this utility model embodiment, the sliding cooperation between the limiting hole 421 of the crossbeam 420 and the pressure plate component 440, combined with the rotational drive mechanism of the drive cylinder 430, effectively improves the flexibility and adaptability of the clamping operation. Specifically, the array of limiting holes 421 allows the pressure plate component 440 to quickly adjust its lateral position, improving the problem that traditional lifting devices cannot adapt to different blade surfaces due to the fixed pressure plate 441; the mechanical pressure of the drive cylinder 430 ensures stable and controllable pressure transmission, avoiding the uncertainty of manual operation.

[0088] Compared to the prior art, the hoisting device provided in this embodiment expands the coverage of the pressure plate 441 through an adjustable position mechanism, making it compatible with various blade models without the need to replace special clamps, while reducing the cost of the hoisting device. Furthermore, during operation, only the pressure plate component 440 needs to be moved, without moving the entire clamping assembly 400, saving manpower and improving time efficiency. Therefore, this structure not only optimizes blade clamping accuracy but also simplifies the operation process through modular design, providing a more efficient and economical solution for hoisting large blades.

[0089] In an optional embodiment of this utility model, the pressure plate component 440 further includes two pressure plates 441 and a universal adjusting rod 442. The two pressure plates 441 are spaced apart and connected to the bottom of the sliding base via the universal adjusting rod 442. It is understood that traditional lifting devices lack a curved surface adaptive structure, and different types of blades require the replacement of special clamps, increasing equipment costs. In this embodiment, two pressure plates 441 are provided, and the universal adjusting rod 442 serves as the connection structure between the pressure plates 441 and the sliding base. In this way, the pressure plate component 440 can have a curved surface adaptive capability, thereby adapting to the curved surfaces of different types of blades.

[0090] Continue reading Figure 8In an optional embodiment of the present invention, the clamping assembly 400 further includes a third position detection element 450, which is disposed on the base 410 and electrically connected to the drive cylinder 430, for real-time detection of the rotation angle or position state of the crossbeam 420 relative to the base 410.

[0091] The third position detection element 450 can be an angle sensor or a linear displacement sensor. Its detection signal is fed back to the control system of the drive cylinder 430 to realize closed-loop control of the rotation angle of the crossbeam 420. In some optional embodiments, it can also be directly set as a mechanical limit switch (in this case, the third position detection element 450 only detects the minimum and maximum angles of the crossbeam 420 rotation).

[0092] For example, a rotary encoder is installed near the hinge shaft of the base 410 to indirectly obtain the position of the crossbeam 420 by measuring the rotation angle of the hinge shaft; in another optional embodiment, a laser rangefinder is set on the side of the base 410 to directly measure the vertical distance between the end of the crossbeam 420 and the base 410.

[0093] When the drive cylinder 430 pushes the crossbeam 420 to rotate, the third position detection element 450 continuously collects position data. If the rotation angle of the crossbeam 420 exceeds a preset safety threshold (such as exceeding the maximum working angle), the drive cylinder 430 automatically stops and triggers an alarm. For example, the rotary encoder converts the angle data into an electrical signal and transmits it to the controller. The controller compares the angle with a preset angle range (such as 0°-90°). If it detects that the crossbeam 420 has rotated to the target pressing angle (such as 45°), it controls the drive cylinder 430 to maintain the current pressure. If the angle is abnormal (such as exceeding 70°), it immediately stops the extension and retraction of the drive cylinder 430 to protect the structural safety.

[0094] When working at heights, this detection mechanism prevents the crossbeam 420 from rotating excessively due to strong winds or operational errors, ensuring that the pressure plate component 440 is always within its effective working range. In particular, when the pressure plate 441 contacts the curved surface of the blade, position feedback causes the drive cylinder 430 to dynamically adjust its output force, preventing pressure overload from damaging the blade.

[0095] See Figure 1 and Figure 8 It is understood that in the hoisting device provided by this utility model embodiment, the real-time monitoring of the position of the crossbeam 420 by the third position detection component 450 effectively improves the safety and control accuracy of the clamping process. Specifically, the position feedback mechanism matches the action of the drive cylinder 430 with the actual state of the crossbeam 420, which can prevent the clamping force from getting out of control due to mechanical deviation or external interference, and reduce the risk of blade surface damage.

[0096] Compared to the prior art, the hoisting device provided in this embodiment of the invention replaces experience-based operation with automated detection, eliminating human error and ensuring the stability and reliability of the applied clamping force in high-altitude, strong-wind environments. Therefore, this structure not only optimizes blade protection but also reduces hydraulic system energy consumption and extends equipment lifespan through closed-loop control.

[0097] Figure 9 This is a partial structural diagram of the connecting component and the main beam provided in an embodiment of the present invention.

[0098] See Figure 1 and Figure 9 In an optional embodiment of this utility model, the hoisting device further includes a connecting assembly 500, which includes a connector 510 and a load detection component 520. The connector 510 is used to establish a physical connection between the main beam 100 and external lifting equipment (such as a crane hook). For example, the connector 510 may be one or a combination of shackles, connecting plates, lifting rings, or quick-release flange structures.

[0099] The load detection element 520 is installed on the force transmission path between the connector 510 and the main beam 100 to detect the overall load-bearing capacity of the hoisting device in real time. Specifically, the load detection element 520 can be a weighing sensor or a pressure sensor, and its output signal is transmitted to the control system to realize load monitoring.

[0100] For example, the load cell is fixed with bolts between the lug plate on the top of the main beam 100 and the connector 510 (such as a shackle). When the lifting device is under force, the load cell converts the mechanical deformation into an electrical signal output. In another optional example, the connector 510 can also be designed as a universal swivel joint to adapt to the tensile force direction at different angles of the lifting equipment. The load detection element 520 can also be replaced with a strain gauge group, which is attached to the key load-bearing parts of the main beam 100 for distributed measurement.

[0101] In use, connector 510 is fixed to the hook of the lifting equipment via shackles or flanges. When the lifting equipment lifts the hoisting device, the load is transmitted to the main beam 100 through connector 510. At this time, load detection element 520 collects pressure or deformation data on the force transmission path in real time. For example, the load sensor converts the load value into an electrical signal and transmits it to the processor in the control cabinet. The processor compares it with a preset safety threshold (e.g., 30 tons). If the load exceeds the threshold, it immediately triggers an audible and visual alarm and cuts off the lifting power of the lifting equipment to prevent overload damage.

[0102] See Figure 1 and Figure 9It is understood that the hoisting device provided in this embodiment of the present invention effectively improves the safety and reliability of the hoisting process through the real-time monitoring mechanism of the load detection component 520. Specifically, by directly measuring the connection load between the main beam 100 and the hoisting equipment, overload risks can be identified, preventing structural damage or blade fall accidents caused by insufficient equipment strength. In addition, during the blade hoisting process, this detection mechanism can dynamically monitor load fluctuations caused by wind swaying and intervene in a timely manner to avoid structural failure or blade fall due to instantaneous overload.

[0103] Compared to the prior art, the hoisting device provided in this embodiment of the invention, by setting load detection components 520 in the force transmission path, can achieve global monitoring of the overall hoisting load, improving safety hazards caused by blind spots in local monitoring. Therefore, this structure not only reduces the risks of high-altitude operations but also extends the service life of the equipment through an active protection mechanism, providing more comprehensive safety assurance for the hoisting of large blades.

[0104] Figure 10 This is a partial structural schematic diagram of the main beam and tilt detection component provided in this embodiment of the utility model.

[0105] See Figure 1 and Figure 10 In an optional embodiment of this utility model, the hoisting device further includes a tilt angle detection element 600, which is fixedly mounted on the main beam 100 and used to monitor the overall tilt angle of the hoisting device in real time. When the detected tilt angle exceeds a preset threshold (e.g., 3°), the tilt angle detection element 600 triggers an alarm system to issue a prompt message.

[0106] The tilt detection element 600 can be a mechanical tilt switch or an electronic accelerometer, and its output signal is transmitted to the processor in the control cabinet. For example, a mechanical tilt switch achieves angle sensing through a gravity pendulum structure. When the main beam 100 tilts beyond a set threshold, the internal contacts close, activating the audible and visual alarm circuit. In another optional embodiment, a triaxial MEMS (microelectromechanical system) sensor is used to calculate the tilt angle data in real time through digital signals. If the tilt angle exceeds the threshold, an alarm command is sent to the wireless terminal.

[0107] During hoisting operations, the tilt detection device 600 continuously collects spatial attitude data of the main beam 100. For example, a mechanical tilt switch triggers the circuit to close via a pendulum offset, directly driving the on-site siren to sound; while an electronic sensor transmits the angle data to the processor in real time, and the processor triggers an alarm signal after comparing it with a preset threshold.

[0108] This process automatically intervenes when strong winds cause the lifting equipment to sway or uneven ground causes tilting, requiring no manual monitoring. During high-altitude installation, alarm prompts guide operators to adjust the lifting equipment's actions or suspend work to prevent cumulative tilting from causing structural instability. If a wireless transmission solution is used, alarm information can be simultaneously sent to the ground control console for remote safety monitoring.

[0109] See Figure 1 and Figure 10 It is understood that the hoisting device provided in this embodiment of the present invention effectively improves the safety and risk response capability of the hoisting process through the tilt angle threshold alarm mechanism. Specifically, real-time angle monitoring can provide timely warnings in the early stages of imbalance, preventing the blade oscillation from worsening or the hoisting structure from being overloaded due to continuous tilting, thereby reducing the probability of falls from heights.

[0110] Compared to the prior art, the hoisting device provided in this embodiment fills the technical gap in active protection of hoisting posture. Targeting the large wind-affected area of ​​large blades, it can improve the challenge of hoisting stability control in strong wind environments. Simultaneously, the immediacy of the alarm prompts reduces the response delay of manual observation, providing more reliable safety assurance for complex working conditions.

[0111] In an optional embodiment of this utility model, the hoisting device further includes an emergency cable reel, a toolbox, a generator, and a hydraulic station. The emergency cable reel is used to provide additional power from the outside when the hoisting device's own power supply fails. The toolbox is used to store various slings and fasteners to prevent loss. The generator supplies power to the entire hoisting device, and the hydraulic station provides pressure to the drive cylinder 430.

[0112] It should be noted that the technical solutions in the various embodiments of this utility model can be combined with each other, but the basis for such combination is that they can be implemented by those skilled in the art. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist, that is, it is not within the protection scope of this utility model.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A hoisting device, characterized in that, include: Main beam; A secondary beam is provided at the end of the main beam. The secondary beam is provided with a guide rail and multiple lifting points. The guide rail extends along the length direction of the secondary beam, and all the lifting points are spaced apart on one side of the guide rail along the extension direction of the guide rail. A lifting assembly, detachably mounted on one of the plurality of lifting points, and capable of switching positions between the plurality of lifting points along the guide rail, is used to secure the blade.

2. The hoisting device according to claim 1, characterized in that, The lifting assembly includes: Lifting components are used to secure the blades; Fixed components, including: A fixing seat is provided on the top of the lifting component, and a first shaft hole is provided on the side of the fixing seat away from the lifting component; A moving component is disposed on the fixed base and is adapted to move along the guide rail; A fixed shaft passes through the first shaft hole and one of the plurality of lifting points, and the fixed shaft is used to fix the position of the fixed seat relative to the guide rail.

3. The hoisting device according to claim 2, characterized in that, The moving component includes: A fixed ring is fixed at the first shaft hole and is coaxially arranged with the first shaft hole; the fixed shaft passes through the first shaft hole and the fixed ring. A moving ring is sleeved on the outside of the fixed ring and rotates in conjunction with the fixed ring, and the moving ring is adapted to rotate along the guide rail.

4. The hoisting device according to claim 2, characterized in that, The secondary beam includes: The main body is located at the end of the main beam; A first side plate is provided on the lower side of the main body. The first side plate has a plurality of second shaft holes spaced apart along its own length. The second shaft holes are used to form the lifting points. The second side plate is disposed on the first side plate and is set at an angle to the first side plate, and extends in the same direction as the first side plate. The second side plate is used to form the guide rail.

5. The hoisting device according to claim 4, characterized in that, The secondary beam also includes: A limiting member is provided at least one of the main body, the first side plate, and the second side plate, and the limiting member is located at both ends of the guide rail. The limiting member is used to limit the displacement of the moving member.

6. The hoisting device according to claim 2, characterized in that, The lifting components include: A first unhooking component is connected to the lower part of the fixed base, and the first unhooking component is provided with a first position detection component; The second unhooking component is connected to the lower part of the fixed base and is spaced apart from the first unhooking component to limit the suspension space. The second unhooking component is provided with a second position detection element. A telescopic drive component is electrically connected to the first position detection component and the second position detection component, respectively. The first position detection component and the second position detection component are used to detect the position of the telescopic rod of the telescopic drive component. In a first working condition, the telescopic drive component is retracted into the interior of the first unhooking component. In a second working condition, the telescopic drive component extends out of the first unhooking component and passes through the suspension space and the second unhooking component. In the second operating condition, one end of the sling is located within the suspension space and suspended from the telescopic drive component.

7. The hoisting device according to claim 1, characterized in that, It also includes a clamping assembly, the clamping assembly comprising: A base is provided on one of the main beam and the secondary beam; A crossbeam, one end of which is rotatably connected to the bottom end of the base, has multiple limiting holes spaced apart along its length. A drive cylinder is rotatably connected at one end to the top of the base and at the other end to the crossbeam. The drive cylinder is used to drive the crossbeam to rotate relative to the base. A pressure plate component is provided on the crossbeam and can switch positions along the crossbeam between multiple limiting holes. The pressure plate component is used to press the blade.

8. The hoisting device according to claim 7, characterized in that, The clamping assembly also includes: A third position detection element is disposed on the base and electrically connected to the drive cylinder. The third position detection element is used to detect the position of the crossbeam relative to the base.

9. The hoisting device according to any one of claims 1 to 8, characterized in that, It also includes a connection component, the connection component comprising: A connector, which is connected to the main beam, is used to connect lifting equipment; A load detection element is disposed between the connector and the main beam, and the load detection element is used to detect the load of the hoisting device.

10. The hoisting device according to any one of claims 1 to 8, characterized in that, It also includes a tilt angle detection device, which is installed on the main beam and is used to detect the tilt angle of the hoisting device; if the tilt angle of the hoisting device is greater than a preset threshold, the tilt angle detection device will issue an alarm message.

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