A large-scale intelligent load-adjusting hoisting device

Abstract

This utility model discloses a large-scale intelligent load-adjusting hoisting device, belonging to the field of wind power hoisting technology. It includes a main beam with a lifting point at the top, two auxiliary beams slidably connected below the main beam via main-auxiliary beam connectors, a drive mechanism for independently moving the auxiliary beams, and a control system. Position sensors are fixedly connected to the main-auxiliary beam connectors and electrically connected to the control system. The main beam also includes an accumulator, an automatic elastic cable reel, and an adjustment device. This utility model can precisely adjust the position of the auxiliary beams under load, is adaptable to various specifications of wind power equipment, eliminates the need to change lifting tools, significantly shortens the hoisting cycle, reduces labor intensity, and improves the safety and efficiency of hoisting under complex offshore conditions.

Description

Technical Field

[0001] This utility model belongs to the field of wind power hoisting technology, and in particular relates to a large-scale intelligent load regulating hoisting device. Background Technology

[0002] Wind energy, as a clean and renewable new energy source, occupies a key position in my country's energy structure transformation. my country has abundant wind energy resources and a huge energy demand; wind power, due to its relatively low generation cost, has become one of the core directions for large-scale development in the new energy field. As onshore wind power development matures, the wind power industry is gradually expanding offshore—offshore wind energy has significant advantages such as large reserves, stable wind speeds, and no occupation of land resources. However, it also faces more stringent operating environments and technical challenges, among which the installation of large wind turbine equipment is one of the core links restricting the efficient construction of offshore wind power.

[0003] With the continuous increase in the capacity of single offshore wind turbines, the size and weight of wind power equipment have increased significantly, directly leading to a substantial rise in the difficulty of hoisting. More importantly, the complex offshore operating environment, with its significant impact from wind and waves and limited space for personnel operation, makes traditional hoisting methods inadequate for meeting efficiency and safety requirements. Current technologies often employ a "split-unit hoisting" approach, where components such as the nacelle, hub, and blades are hoisted individually, and then assembled on-site after all components are in place. While this method ensures the stability of a single hoisting operation, it has a fatal flaw: an excessively long hoisting and assembly cycle. This not only completely negates the core requirement of "time efficiency" in offshore wind power construction but also increases the frequency of personnel exposure to hazardous environments due to multiple hoisting operations.

[0004] In summary, the current offshore wind power installation field urgently needs a lifting device that can adapt to large-scale, multi-specification equipment, achieve rapid adjustment under load, universal lifting, and a high degree of automation. This would solve the problems of long lifting cycles for split installations, poor versatility of existing adjustment devices, low adjustment efficiency, and high dependence on manual labor, thus meeting the actual needs of efficient and safe offshore wind power construction. Utility Model Content

[0005] To solve the above-mentioned technical problems, this utility model proposes a large-scale intelligent load adjustment hoisting device.

[0006] To achieve the above objectives, this utility model provides a large-scale intelligent load-adjusting hoisting device, comprising:

[0007] The main beam has a lifting point at its top;

[0008] There are two secondary beams, both of which are slidably connected to the two sides below the main beam via main and secondary beam connectors;

[0009] A drive mechanism, fixed to the main beam and connected to the secondary beam, is used to drive the two secondary beams to move along the extension direction of the main beam independently;

[0010] The control system, fixed to the main beam, is used to control the drive mechanism to drive the secondary beam to move;

[0011] The control system and the drive mechanism are connected to an external power source via cables.

[0012] Optionally, the bottom of the sub-beam is provided with multiple sets of lifting points.

[0013] Optionally, a slide rail is provided on the side of the main beam, and the main and secondary beam connector is slidably connected to the main beam through the slide rail, with the bottom of the main and secondary beam connector being bolted to the secondary beam.

[0014] Optionally, the drive mechanism includes a hydraulic station and a hydraulic cylinder. The hydraulic station is fixedly connected to the main beam. The hydraulic station is controlled by the control system and transmits control signals to the hydraulic cylinder. The hydraulic station also provides power to the hydraulic cylinder. At least two hydraulic cylinders are provided, symmetrically arranged on the main beam. One end of each hydraulic cylinder is fixedly connected to the main beam, and the other end is fixedly connected to the side of the main-sub-beam connector parallel to the axis of the main beam.

[0015] Optionally, a sliding groove is provided at the bottom of the main beam, and a guide block is fixedly connected to the secondary beam, the guide block sliding within the sliding groove.

[0016] Optionally, it also includes an adjustment device, which is fixed to one end of the main beam and is used to adjust the horizontal state of the device when it is unloaded.

[0017] Optionally, it also includes a cable reel, which is an automatic elastic reel, and the cable is wound on the cable reel.

[0018] Optionally, it also includes an energy storage device, which is fixed to the main beam and electrically connected to the control system and the drive mechanism.

[0019] Optionally, a position sensor is fixedly connected to the main and auxiliary beam connector, and the position sensor is connected to the control system via an electrical signal.

[0020] Compared with the prior art, the present invention has the following advantages and technical effects:

[0021] Through the core design of "a single lifting point on the top of the main beam + two auxiliary beams slidably connected to both sides below the main beam via main and auxiliary beam connectors + a drive mechanism that independently drives the movement of the auxiliary beams + a main beam fixed connection control system," multi-dimensional technical advantages are formed, effectively solving the pain points of "no-load adjustment, long cycle, poor versatility, and cumbersome operation" in existing wind power installations: First, the single and fixed lifting point on the top of the main beam eliminates the design limitations of traditional devices that adjust the lifting point, laying the foundation for load adjustment of the auxiliary beams below. This avoids the inefficiency of repeatedly lowering the suspended object during traditional no-load adjustment and allows for direct response to changes in the center of gravity of the suspended object during the installation process, such as center of gravity shift after adding accessories, significantly shortening the adjustment time and installation cycle; Second, the two auxiliary beams are connected by main and auxiliary beam connectors. With its sliding cooperation with the main beam and the ability for the drive mechanism to independently drive the two auxiliary beams to move along the extension direction of the main beam, it breaks through the bottleneck of traditional devices that can only be adjusted synchronously or have a limited adjustment range. It can precisely adjust the position of one or both auxiliary beams according to the size and center of gravity of different specifications and types of suspended objects. Universal lifting can be achieved without replacing any parts of the lifting equipment, meeting the overall lifting requirements, reducing the investment in special lifting equipment, and significantly reducing costs. Thirdly, the control system is fixed to the main beam and directly controls the drive mechanism, replacing the traditional operation mode of a large amount of manual adjustment. This not only improves the accuracy of auxiliary beam position adjustment but also simplifies the operation process, reduces the labor intensity of personnel in complex environments such as at sea, and achieves the usage requirements of "quick installation and simple operation". Attached Figure Description

[0022] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0023] Figure 1 This is the main view of the large-scale intelligent load-adjusting hoisting device of this utility model;

[0024] Figure 2 This is a left view of the large-scale intelligent load-adjusting hoisting device of this utility model;

[0025] Figure 3 This is a top view of the large-scale intelligent load adjustment and hoisting device of this utility model.

[0026] In the diagram: 1. Main beam; 2. Secondary beam; 3. Accumulator; 4. Hydraulic cylinder; 5. Position sensor; 6. Control system; 7. Hydraulic station; 8. Main and secondary beam connector; 9. Cable reel; 10. Adjustment device. Detailed Implementation

[0027] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0028] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0029] Reference Figures 1 to 3 As shown, this embodiment provides a large-scale intelligent load-adjusting hoisting device, including:

[0030] Main beam 1, with a lifting point at the top;

[0031] There are two secondary beams 2, both of which are slidably connected to the two sides below the main beam 1 via the main and secondary beam connectors 8;

[0032] The drive mechanism is fixed to the main beam 1 and connected to the secondary beam 2, and is used to drive the two secondary beams 2 to move along the extension direction of the main beam 1 independently.

[0033] The control system 6 is fixed to the main beam 1 and is used to control the drive mechanism to drive the secondary beam 2 to move.

[0034] The control system 6 and the drive mechanism are powered by an external power source via cables.

[0035] Through the core design of "a single lifting point on the top of the main beam 1 + two auxiliary beams 2 slidably connected to the two sides below the main beam 1 via the main and auxiliary beam connector 8 + a drive mechanism that independently drives the movement of the auxiliary beams 2 + a main beam 1 fixed connection control system 6", multi-dimensional technical advantages are formed, effectively solving the pain points of "no-load adjustment, long cycle, poor versatility, and cumbersome operation" in existing wind power hoisting: First, the main beam 1 has a single and fixed lifting point on the top, which eliminates the design limitations of traditional devices that adjust the lifting point, laying the foundation for the load adjustment of the auxiliary beams 2 below, avoiding the inefficiency of repeatedly lowering the hoisted object in traditional no-load adjustment, and can directly respond to changes in the center of gravity of the hoisted object during the hoisting process, such as the center of gravity shift after adding accessories, greatly shortening the adjustment time and hoisting cycle; Second, the two auxiliary beams 2 are connected by the main and auxiliary beams. Part 8 slides with the main beam 1, and the drive mechanism can independently drive the two auxiliary beams 2 to move along the extension direction of the main beam 1. This breaks through the bottleneck of traditional devices that can only be adjusted synchronously or have a limited adjustment range. It can accurately adjust the position of one or both auxiliary beams 2 according to the size and center of gravity of different specifications and types of suspended objects. Universal lifting can be achieved without replacing any parts of the lifting equipment, meeting the overall lifting requirements, reducing the investment in special lifting equipment, and significantly reducing costs. Thirdly, the control system 6 is fixed to the main beam 1 and directly controls the drive mechanism, replacing the traditional operation mode of a large amount of manual adjustment. This not only improves the accuracy of the position adjustment of the auxiliary beams 2, but also simplifies the operation process, reduces the labor intensity of personnel in complex environments such as at sea, and achieves the use requirements of "quick installation and simple operation".

[0036] In some alternative implementations, the bottom of the sub-beam 2 is provided with multiple sets of lifting points.

[0037] The structure of "multiple lower lifting points at the bottom of the sub-beam 2" breaks through the limitation of "specialized" lower lifting points in traditional hoisting devices. It allows for the direct selection of suitable lower lifting points based on the number and spacing requirements of different specifications of objects to be hoisted in wind power hoisting scenarios. There is no need to disassemble or replace the sub-beam 2 or add additional special lifting tools and accessories, which perfectly meets the requirements of "universal hoisting" and significantly reduces the procurement cost and replacement time of special lifting tools. At the same time, multiple lower lifting points can also share the load through multiple lifting points, avoiding overloading of a single or a few lifting points. This effectively reduces the risk of deformation and damage to large wind power equipment caused by uneven stress during hoisting, and improves the safety and stability of hoisting operations in complex conditions such as offshore.

[0038] In some alternative implementations, a slide rail is provided on the side of the main beam 1, and the main and secondary beam connector 8 is slidably connected to the main beam 1 through the slide rail, and the bottom of the main and secondary beam connector 8 is bolted to the secondary beam 2.

[0039] The slide rail on the side of the main beam 1 forms a precise sliding fit with the main and secondary beam connector 8. Compared with the traditional unguided sliding structure, the slide rail can limit the sliding direction of the connector, reduce sliding friction, and prevent the secondary beam 2 from jamming, deviating or getting stuck when adjusting the load. This ensures that the secondary beam 2 moves smoothly along the extension direction of the main beam 1, providing a stable foundation for precise adjustment under load and reducing the risk of tilting of the suspended object due to poor sliding.

[0040] In some alternative implementations, the drive mechanism includes a hydraulic station 7 and a hydraulic cylinder 4. The hydraulic station 7 is fixed to the main beam 1. The hydraulic station 7 is controlled by the control system 6 and transmits control signals to the hydraulic cylinder 4. The hydraulic station 7 provides power to the hydraulic cylinder 4. At least two hydraulic cylinders 4 are provided and symmetrically arranged on the main beam 1. One end of the hydraulic cylinder 4 is fixed to the main beam 1, and the other end is fixed to the side of the main beam connecting member 8 parallel to the axis of the main beam 1.

[0041] Compared to traditional mechanical drives, hydraulic drives offer advantages such as high output thrust and smooth operation, easily handling the heavy load demands of large offshore wind turbines. This avoids jamming or stalling due to insufficient power during adjustments. Furthermore, the buffering properties of hydraulic transmission reduce impact on the lifted load and the equipment itself, protecting delicate wind turbine components from damage. In addition, at least two symmetrically arranged hydraulic cylinders 4 are connected to the main beam 1 and the main-secondary beam connector 8, enabling synchronous equidistant adjustment of both secondary beams 2 to accommodate symmetrical loads. Alternatively, the control system 6 can individually control a single hydraulic cylinder 4 to achieve asymmetrical adjustment of the secondary beams 2, handling various loads. The offset of the center of gravity significantly expands the adjustment range. The side of the connector parallel to the axis of the main beam 1 is directly fixed to the end of the hydraulic cylinder 4, so that the extension and retraction driving force of the hydraulic cylinder 4 can be directly transmitted to the connector without loss, thereby driving the secondary beam 2 to move synchronously. This avoids response delay and energy loss caused by excessively long power transmission paths or indirect connections. With the guiding effect of the slide rail, the position of the secondary beam 2 can be quickly and accurately adjusted, solving the problems of "lagging power transmission and low adjustment accuracy" in traditional adjustment methods. This further supports the device to directly adjust the load during hoisting without repeatedly lifting and lowering the hoisted object, significantly improving work efficiency and adjustment safety.

[0042] In some alternative implementations, a sliding groove is provided at the bottom of the main beam 1, and a guide block is fixedly connected to the secondary beam 2, the guide block sliding within the sliding groove.

[0043] The cooperation between the bottom sliding groove and the guide block can further limit the vertical movement and horizontal deviation of the sub-beam 2, and prevent the sub-beam 2 from "tilting" or "jamming" due to uneven force when adjusting under heavy load. This ensures that the sub-beam 2 always moves smoothly along the extension direction of the main beam 1, providing a key guarantee for accurately aligning the center of gravity of the hoisted object under load, and reducing the risk of equipment damage caused by the swaying of the sub-beam 2 during offshore hoisting.

[0044] In some alternative embodiments, an adjustment device 10 is also included, which is fixed to one end of the main beam 1 and is used to adjust the horizontal state of the device 10 when it is unloaded.

[0045] In some optional embodiments, the adjustment device 10 is a non-removable counterweight device for quickly adjusting the balance of the main beam 1. It includes a counterweight plate with a base plate, a counterweight plate mounting groove in the center of the counterweight plate, a clamping mechanism within the mounting groove, and sliding connections between the clamping mechanism and sliding grooves on both side panels of the counterweight plate. A drive motor for driving the clamping mechanism to clamp or release the counterweight plate is mounted on the front side panel of the counterweight plate. A flange panel is provided on the rear side of the counterweight plate for connecting to the main beam 1. The adjustment device 10 controls the clamping and releasing of the clamping mechanism via the drive motor, enabling rapid loading, unloading, and fixing of the counterweight plate, thereby efficiently adjusting the unloaded horizontal state of the main beam and meeting the on-site installation requirements for rapid balance adjustment of the main beam 1 under the trend of rapid wind power installation.

[0046] Because this lifting device has a wide adjustment range and can be adjusted asymmetrically, it is prone to tilting when unloaded due to differences in the position of the two auxiliary beams 2 or slight unevenness in the weight distribution of components. The adjustment device 10 can quickly correct the tilt in a convenient way, reducing the problems of time-consuming and labor-intensive traditional manual adjustment. At the same time, the adjustment device 10 ensures the horizontal state of the device when unloaded in advance, laying the foundation for the precise docking of the auxiliary beam 2 with the object being lifted and the accuracy of the load adjustment of the drive mechanism. It avoids problems such as misalignment of the lifting point and overload adjustment during subsequent lifting due to the initial tilt, which simplifies the operation steps and improves the safety and accuracy of the overall lifting operation.

[0047] In some alternative implementations, a cable reel 9 is also included, which is an automatic spring reel on which the cable is wound.

[0048] Automatic spring reel features automatic cable reeling. When in use, simply pull out the cable manually to connect to the power source. After use, disconnect the connector and the reel automatically retracts the cable. No additional manual handling is required, significantly reducing labor intensity in complex marine environments and preventing cable dragging or trampling damage due to untimely manual reeling.

[0049] In some alternative implementations, an energy storage device 3 is also included, which is fixed to the main beam 1 and electrically connected to the control system 6 and the drive mechanism.

[0050] The accumulator 3 is electrically connected to the control system 6 and the drive mechanism. It can store energy under normal working conditions. When the system experiences power supply abnormalities or pressure fluctuations, it can quickly release the stored energy to provide power support for the core system. This avoids accidents such as loss of control of the hoisted object and hoisting interruption caused by the failure of the control system 6 and the sudden stop of the drive mechanism. It solves the safety hazard of "no emergency power" in traditional hoisting devices.

[0051] In some alternative implementations, a position sensor 5 is fixedly connected to the main and auxiliary beam connector 8, and the position sensor 5 is connected to the control system 6 via an electrical signal.

[0052] Position sensor 5 is fixed to the main and auxiliary beam connector 8, and can directly and in real time collect the actual position information of the main and auxiliary beam connector 8. Since the main and auxiliary beam connector 8 is a key component connecting the auxiliary beam 2 and the main beam 1, its position directly reflects the sliding position of the auxiliary beam 2 along the main beam 1. Compared with the traditional method of manually observing and measuring the position of the auxiliary beam 2, the sensor can avoid human visual errors and measurement delays, and accurately convert the position data into electrical signals and transmit them to the control system 6. The electrical signal connection with the control system 6 realizes the closed-loop linkage of "perception-judgment-control": when the control system 6 issues an adjustment command for the auxiliary beam 2 according to the specifications of the suspended object or the change of the center of gravity, the drive mechanism drives the main and auxiliary beam connector 8 and the auxiliary beam 2 to move, and the position sensor 5 provides real-time feedback. Once the sub-beam 2 reaches the preset position, the sensor immediately transmits the signal to the control system 6. The control system 6 can quickly control the drive mechanism to stop and maintain pressure without manual monitoring of start and stop. This avoids misalignment of the lifting point and tilting of the lifted object caused by overtravel of the sub-beam 2, and eliminates the need for repeated manual calibration, significantly reducing the operational intensity and safety risks for personnel in complex environments such as at sea. At the same time, during load adjustment, the position sensor 5 can capture minute position changes of the sub-beam 2 in real time, providing dynamic data support for the control system 6 to ensure that the adjustment amount accurately matches the center of gravity offset requirements, avoiding load imbalance caused by over-adjustment or under-adjustment, and further ensuring the stability and safety of large wind power equipment during hoisting.

[0053] Any aspects of this utility model that are not detailed herein are conventional technical means known to those skilled in the art.

[0054] In the description of this utility model, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] The embodiments described above are merely preferred embodiments of the present utility model and are not intended to limit the scope of the present utility model. Various modifications and improvements made to the technical solutions of the present utility model by those skilled in the art without departing from the spirit of the present utility model should fall within the protection scope defined by the claims of the present utility model.

Claims

1. A large intelligent load conditioning hoist, characterized by, include: The main beam (1) has a hanging point at its top; There are two secondary beams (2), both of which are slidably connected to the two sides below the main beam (1) through the main and secondary beam connectors (8); The driving mechanism is fixed to the main beam (1) and connected to the secondary beam (2), and is used to drive the two secondary beams (2) to move along the extension direction of the main beam (1) individually; The control system (6) is fixed to the main beam (1) and is used to control the drive mechanism to drive the secondary beam (2) to move. The control system (6) and the drive mechanism are connected to an external power source via cables.

2. The large intelligent load conditioning hoist of claim 1, wherein, The bottom of the sub-beam (2) is provided with multiple sets of lifting points.

3. The large intelligent load conditioning hoist of claim 1, wherein, The main beam (1) is provided with a slide rail on its side. The main and secondary beam connector (8) is slidably connected to the main beam (1) through the slide rail. The bottom of the main and secondary beam connector (8) is bolted to the secondary beam (2).

4. The large intelligent load conditioning hoist of claim 3, wherein, The driving mechanism includes a hydraulic station (7) and a hydraulic cylinder (4). The hydraulic station (7) is fixedly connected to the main beam (1). The hydraulic station (7) is controlled by the control system (6) and transmits the control signal to the hydraulic cylinder (4). The hydraulic station (7) provides power to the hydraulic cylinder (4). There are at least two hydraulic cylinders (4) symmetrically arranged on the main beam (1). One end of the hydraulic cylinder (4) is fixedly connected to the main beam (1), and the other end is fixedly connected to the side of the main beam connecting member (8) parallel to the axis of the main beam (1).

5. The large intelligent load conditioning hoist of claim 4, wherein, The main beam (1) has a sliding groove at its bottom, and the secondary beam (2) has a guide block fixedly connected to it. The guide block slides in the sliding groove.

6. The large intelligent load conditioning hoist of claim 1, wherein, It also includes an adjustment device (10), which is fixed to one end of the main beam (1) and is used to adjust the horizontal state of the device (10) when it is unloaded.

7. The large-scale intelligent load-adjusting hoisting device according to claim 1, characterized in that, It also includes a cable reel (9), which is an automatic elastic reel, and the cable is wound on the cable reel (9).

8. The large-scale intelligent load-adjusting hoisting device according to claim 1, characterized in that, It also includes an energy storage device (3), which is fixed to the main beam (1) and is electrically connected to the control system (6) and the drive mechanism.

9. The large-scale intelligent load-adjusting hoisting device according to claim 1, characterized in that, A position sensor (5) is fixedly connected to the main and auxiliary beam connector (8), and the position sensor (5) is connected to the control system (6) via an electrical signal.

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