Spiral cross type energy consumption web member for lattice type wind power tower

Abstract

The invention discloses a spiral cross type energy consumption web member for a lattice type wind power tower, and relates to the field of lattice type wind power towers. The spiral cross type energy consumption web member for the lattice type wind power tower comprises a constraint sleeve, a center main rod, a mounting base, a section spiral sheet and a plurality of distance detection pieces. According to the spiral cross type energy consumption web member for the lattice type wind power tower, the structure that the lower half section of spiral sheet and the upper half section of spiral sheet are installed between the center main rod and the constraint sleeve is adopted, the structure that the first energy consumption metal plate and the second energy consumption metal plate are installed on the center main rod is adopted, and the structure convenient to replace is convenient for daily maintenance; according to the spiral cross structure, energy can be consumed under axial tension and compression, meanwhile, synergistic plastic deformation can be generated under the combined action of torsion, shearing and bending, a multi-dimensional hysteretic loop is formed, the unit mass energy consumption efficiency of the web member is improved, and the buckling stability of the member is enhanced through the spiral cross structure.

Description

Technical Field

[0001] This invention relates to the field of lattice wind turbine towers, and particularly to a spiral cross-type energy-dissipating web member for lattice wind turbine towers. Background Technology

[0002] With the trend towards larger wind power, lattice wind turbine towers break through traditional designs with their spatial pole structure. Their web members mostly use high-strength steel pipes. Modern lattice towers integrate prestressed technology with steel-concrete composite structures, reducing transportation costs by 30%, making them an ideal solution for high-altitude, high-seismic zones and distributed wind power scenarios.

[0003] As the support system for ultra-high wind turbine towers, the lattice-type wind power hybrid support structure has its web members bearing the main energy dissipation task under external loads, especially the coupled loads of earthquakes and strong winds. Traditional web members usually adopt axial tension and compression members. When encountering seismic cyclic loads, their hysteretic energy dissipation mainly relies on repeated yielding of tension and compression.

[0004] However, this axial energy dissipation mode has the following significant drawbacks:

[0005] First, when the structure is subjected to cyclic loads, the hysteresis loops are "sharp-angled", which makes the absorption and release of energy difficult, resulting in limited energy dissipation efficiency and a low equivalent viscous damping coefficient, thus affecting the seismic performance of the structure.

[0006] Second, under combined compression and bending conditions, traditional web members are prone to complex failures such as asymmetric hysteresis and torsional buckling, making it difficult to effectively resist complex stresses, significantly reducing structural durability and affecting engineering safety. Summary of the Invention

[0007] The purpose of this invention is to provide a spiral cross-type energy-dissipating web member for lattice-type wind turbine towers, so as to solve the problems mentioned in the background art.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower includes:

[0009] A central main rod is fitted with a constraint sleeve, and multiple contact limiting blocks are fixedly connected to the inner wall of the constraint sleeve. An energy-consuming metal plate is installed on the central main rod.

[0010] The mounting base is fixedly connected to the bottom of the central main rod. The mounting base is provided with a lower half spiral plate, and an upper half spiral plate is provided on the lower half spiral plate. The upper end of the upper half spiral plate is provided at the upper end of the central main rod.

[0011] Multiple distance detection components are installed between the central main rod and the constraint sleeve, and a transmission component is installed on the constraint sleeve.

[0012] The central main rod is provided with a second connecting end, and a wire hole is formed by stamping inside the central main rod.

[0013] A first thin-plate mounting seat is fixedly connected to the mounting base. The lower half of the spiral thin plate is mounted on the first thin-plate mounting seat. A first curved bolt is threaded between the first thin-plate mounting seat and the lower half of the spiral thin plate. A fixing ring is fixedly connected to the side wall of the second connecting end by bolts. A second thin-plate mounting seat is fixedly connected to the outer peripheral wall of the fixing ring. The upper end of the upper half of the spiral thin plate is mounted inside the second thin-plate mounting seat. A second curved bolt is threaded between the second thin-plate mounting seat and the upper half of the spiral thin plate.

[0014] The lower half of the spiral sheet has an installation slot at its upper end, and a square connector is fixedly connected to the lower end of the upper half of the spiral sheet. The square connector is inserted into the installation slot and is fixedly connected to the lower half of the spiral sheet by bolts. The inner sides of the lower half of the spiral sheet and the upper half of the spiral sheet are tightly attached to the outer peripheral wall of the central main rod, and the outer sides of the lower half of the spiral sheet and the upper half of the spiral sheet are tightly attached to the inner wall of the constraint sleeve.

[0015] The lower end of the constraint sleeve is fixedly connected to a connecting seat, and the upper end of the constraint sleeve is fixedly connected to a first connecting end, which abuts against a second connecting end. An mounting plate is fixedly connected to the outer wall of the constraint sleeve.

[0016] The contact limiting block includes a first spiral contact block and a second spiral contact block. The first spiral contact block is fixedly connected to the constraint sleeve near the connecting seat, and the second spiral contact block is fixedly connected to the constraint sleeve near the first connecting end. The constraint sleeve, the connecting seat, the first connecting end, the first spiral contact block, and the second spiral contact block are integrally formed and manufactured.

[0017] The transmission component includes a transmission connector and a remote signal connector. The transmission connector is mounted on a mounting plate and is communicatively connected to a distance detection component. The remote signal connector is mounted on the transmission connector.

[0018] The energy-consuming metal plate includes a first energy-consuming metal plate and a second energy-consuming metal plate. The first energy-consuming metal plate is installed in the middle of the central main rod, and the second energy-consuming metal plate is installed on the outside of the first energy-consuming metal plate. A third curved bolt is threadedly connected between the central main rod, the first energy-consuming metal plate, and the second energy-consuming metal plate.

[0019] The distance detection device includes a first displacement sensor, a second displacement sensor, and a third displacement sensor. The first displacement sensor is fixedly connected to the lower half of the spiral sheet, and the detection end of the first displacement sensor is directly opposite the upper half of the spiral sheet. The second displacement sensor is installed inside a first spiral contact block, and the detection end of the second displacement sensor is directly opposite the lower half of the spiral sheet. The third displacement sensor is installed inside a second spiral contact block, and the output end of the third displacement sensor is directly opposite the upper half of the spiral sheet.

[0020] The first energy-consuming metal plate is made of shape memory alloy material, and the second energy-consuming metal plate is made of conventional strength steel plate material.

[0021] The technical effects and advantages of this invention are as follows:

[0022] 1. The spiral cross-type energy-dissipating web member used in lattice-type wind turbine towers adopts a structure in which a lower half spiral plate and an upper half spiral plate are installed between the central main member and the constraint sleeve, and a first energy-dissipating metal plate and a second energy-dissipating metal plate are installed on the central main member. The structure is easy to replace and facilitates daily maintenance. It can dissipate energy under axial tension and compression, and at the same time, it can generate synergistic plastic deformation under the combined action of torsion, shear and bending to form a multi-dimensional hysteresis loop, thereby improving the energy dissipation efficiency per unit mass of the web member. The spiral cross structure enhances the buckling stability of the member, making it less prone to early buckling under cyclic compression and bending, and improving the stability of hysteresis performance.

[0023] 2. The spiral cross-type energy-dissipating web member used in lattice-type wind turbine towers adopts a structure in which spiral contact limit blocks are fixedly connected at the upper and lower positions inside the constraint sleeve. This allows the yielding process of the web member to be segmented and gradual, avoiding the uncontrollable characteristics of the traditional web member's one-time yielding, thereby improving the ductility and toughness of the structure. At the same time, multiple distance detection devices installed between the central main member and the constraint sleeve facilitate monitoring of the web member during installation and use, and facilitate timely intervention when asymmetric hysteresis occurs in the spiral thin plate. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the central main rod structure of the present invention;

[0026] Figure 3 This is a schematic diagram of the lower half of the spiral sheet structure of the present invention;

[0027] Figure 4 This is a schematic diagram of the upper part of the spiral sheet structure of the present invention;

[0028] Figure 5 This is a schematic diagram of the energy-consuming metal plate structure of the present invention;

[0029] Figure 6 This is a schematic diagram of the transmission component structure of the present invention;

[0030] Figure 7 This is a schematic diagram of the constraint sleeve structure of the present invention;

[0031] Figure 8 This is a flowchart illustrating the installation process of the present invention;

[0032] Figure 9 This is a flowchart illustrating the monitoring of internal energy-consuming components according to the present invention.

[0033] In the diagram: 1. Constraint sleeve; 11. Connecting seat; 12. First spiral contact block; 13. Second spiral contact block; 14. First connecting end; 15. Mounting plate; 2. Central main rod; 21. Second connecting end; 22. Wire hole; 3. Mounting base; 31. First thin plate mounting seat; 32. First curved bolt; 4. Lower half spiral thin plate; 41. Mounting slot; 5. Upper half spiral thin plate; 51. Second thin plate mounting seat; 52. Fixed connecting ring; 53. Square connector; 54. Second curved bolt; 6. First energy-consuming metal plate; 61. Second energy-consuming metal plate; 62. Third curved bolt; 7. First displacement sensor; 71. Second displacement sensor; 72. Third displacement sensor; 8. Transmission connector; 81. Remote signal connector. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] This invention provides, for example Figure 1 - Figure 7 The spiral cross-type energy-dissipating web member shown is used for lattice-type wind turbine towers and includes a constraint sleeve 1, a central main rod 2, a mounting base 3, a segmented spiral sheet and multiple distance detection components.

[0036] A constraint sleeve 1 is fitted onto the central main rod 2. Multiple contact limiting blocks are fixedly connected to the inner wall of the constraint sleeve 1. These contact limiting blocks allow the yielding process of the web members to proceed in segments and gradually, avoiding the uncontrollable characteristic of traditional web members yielding all at once, thereby improving the ductility and toughness of the structure. When the web members deform under load, the spiral contact limiting blocks contact the spiral thin plates, limiting the speed and extent of deformation, making the deformation process more controllable. Energy-dissipating metal plates are installed on the central main rod 2. These energy-dissipating metal plates work in conjunction with the central main rod 2 to dissipate energy under load. The spiral cross-bracing structure undergoes plastic deformation, consuming energy and enhancing the energy dissipation capacity of the web members. As the core support component of the entire spiral cross-bracing structure, it provides the installation foundation for other components and achieves energy dissipation through its own structural characteristics and collaborative work with the energy-dissipating metal plates. The central main rod 2 is made of high-strength steel to ensure that it has sufficient strength and rigidity. The function of the constraint sleeve 1 is not to restrict the free deformation of the spiral sheet, but to provide contact when the spiral sheet reaches the preset position, guiding the spiral sheet to a new plastic deformation path.

[0037] The mounting base 3 is fixedly connected to the bottom of the central main rod 2. The mounting base 3 is provided with a lower half spiral plate 4 and an upper half spiral plate 5. The upper end of the upper half spiral plate 5 is located at the upper end of the central main rod 2. The lower half spiral plate 4 and the upper half spiral plate 5 dissipate energy under axial tension and compression. At the same time, they can generate synergistic plastic deformation under the combined action of torsion, shear and bending, forming a multidimensional hysteresis loop, which improves the energy dissipation efficiency per unit mass of the web member. The buckling stability of the member is enhanced by the spiral cross structure, making it less prone to early buckling under cyclic compression and bending, and improving the stability of hysteresis performance. The lower half spiral plate 4 and the upper half spiral plate 5 can form a complex shear deformation path in space during the stress process. They will generate torsional yielding under axial load and shear yielding under transverse load. After coupling, they form a three-dimensional plastic zone.

[0038] In its actual working mechanism, when the structure enters the seismic loading phase, the central main member 2 is subjected to tension and compression, while the lower helical sheet 4 and the upper helical sheet 5 undergo combined torsional and shear deformation simultaneously. The geometry of the helical sheets determines the gradual change in stress distribution, preventing the web members from buckling abruptly within a single cycle. Instead, they absorb energy through continuous torsion, forming a "wide and thick spatial hysteresis loop." Due to the double-helix design, the web members maintain high stability even under compression and bending, delaying buckling and enhancing cumulative energy dissipation capacity.

[0039] Multiple distance sensors are installed between the central main rod 2 and the constraint sleeve 1. A transmission device is installed on the constraint sleeve 1. The distance sensors acquire the deformation of various parts of the web member in real time. When abnormalities such as asymmetric hysteresis occur in the spiral thin plate, timely intervention is performed to ensure the safe operation of the structure. The transmission device can transmit the monitoring results of the distance sensors to the central control unit in real time, realizing remote monitoring and management of the data, and facilitating staff to understand the operating status of the web member in a timely manner.

[0040] The distance detection component is a displacement sensor, which achieves non-contact displacement measurement through a laser beam. The core principle is laser triangulation, in which the laser emitter focuses the beam onto the surface of the object being measured. The reflected light is converged to the CCD / CMOS sensor through a receiving lens. The position of the light spot changes with the displacement of the object. Through geometric calculation, the displacement at the micrometer level can be obtained, which is suitable for short-distance, high-precision measurement. When the data detected by the displacement sensor is less than the set threshold after multiple strong vibration cycles or when asymmetric hysteresis occurs, the component function can be restored by disassembling the external constraint sleeve 1 and replacing the first energy-consuming metal plate 6, the second energy-consuming metal plate 61, the lower half spiral plate 4, and the upper half spiral plate 5. There is no need to replace the entire web member. This invention can also adjust the hysteresis performance by adjusting parameters such as the number of spiral plates, pitch, and thickness by using distance detection components set at different positions to generate data during daily use, thus adapting to different structural and performance requirements.

[0041] The central main rod 2 is provided with a second connecting end 21. The central main rod 2 has a wire hole 22 formed by stamping. The wire hole 22 is used to pass through cables or signal lines, which facilitates the internal wiring layout.

[0042] A first thin-plate mounting seat 31 is fixedly connected to the mounting base 3. The lower half of the spiral thin plate 4 is mounted on the first thin-plate mounting seat 31. A first curved bolt 32 is threadedly connected between the first thin-plate mounting seat 31 and the lower half of the spiral thin plate 4. A fixed connecting ring 52 is fixedly connected to the side wall of the second connecting end 21 by bolts. A second thin-plate mounting seat 51 is fixedly connected to the outer peripheral wall of the fixed connecting ring 52. The upper end of the upper half of the spiral thin plate 5 is installed inside the second thin-plate mounting seat 51. A second curved bolt 54 is threadedly connected between the second mounting seat 51 and the upper half of the spiral thin plate 5.

[0043] The lower half of the spiral blade 4 has an installation slot 41 at its upper end, and the lower half of the spiral blade 5 is fixedly connected to a square connector 53. The square connector 53 is inserted into the installation slot 41, and the square connector 53 is fixedly connected to the lower half of the spiral blade 4 by bolts, so as to achieve a reliable connection between the lower half of the spiral blade 4 and the upper half of the spiral blade 5. The inner sides of the lower half of the spiral blade 4 and the upper half of the spiral blade 5 are tightly attached to the outer peripheral wall of the central main rod 2, and the outer sides of the lower half of the spiral blade 4 and the upper half of the spiral blade 5 are tightly attached to the inner wall of the constraint sleeve 1.

[0044] The lower end of the constraint sleeve 1 is fixedly connected to a connecting seat 11, and the upper end of the constraint sleeve 1 is fixedly connected to a first connecting end 14. The first connecting end 14 abuts against the second connecting end 21 to achieve axial positioning. The outer wall of the constraint sleeve 1 is fixedly connected to a mounting plate 15.

[0045] The contact limiting block includes a first spiral contact block 12 and a second spiral contact block 13. The first spiral contact block 12 is fixedly connected to the constraint sleeve 1 near the connecting seat 11, and the second spiral contact block 13 is fixedly connected to the constraint sleeve 1 near the first connecting end 14. The constraint sleeve 1, the connecting seat 11, the first connecting end 14, the first spiral contact block 12, and the second spiral contact block 13 are integrally formed to ensure the integrity and strength of the structure.

[0046] The transmission components include a transmission connector 8 and a remote signal connector 81. The transmission connector 8 is mounted on a mounting plate 15, which provides a stable support platform for it, ensuring that it will not shake or shift due to external factors during operation, thus guaranteeing the stability of signal transmission. The transmission connector 8 maintains a close communication connection with a distance detection device, which can detect the deformation of the web member in real time and convert this deformation data into corresponding electrical signals. As a signal receiving station, the transmission connector 8 can accurately receive these signals from the distance detection device, preparing for subsequent signal processing and transmission. The remote signal connector 81 is mounted on the transmission connector 8 and has a powerful remote signal transmission capability. It can further process and enhance the signals received by the transmission connector 8, and then wirelessly transmit these signals over a certain distance to a remote monitoring center. At the remote monitoring center, staff can easily obtain the deformation data of the web member. Through real-time analysis and processing of this data, staff can promptly grasp the deformation status of the web member, determine whether it is in a safe state, and then take corresponding measures to ensure the safe and stable operation of the entire structure.

[0047] The energy-consuming metal plate includes a first energy-consuming metal plate 6 and a second energy-consuming metal plate 61. The first energy-consuming metal plate 6 is installed in the middle of the central main rod 2, and the second energy-consuming metal plate 61 is installed on the outside of the first energy-consuming metal plate 6. A third curved bolt 62 is threadedly connected between the central main rod 2, the first energy-consuming metal plate 6 and the second energy-consuming metal plate 61.

[0048] The distance detection component includes a first displacement sensor 7, a second displacement sensor 71, and a third displacement sensor 72. The first displacement sensor 7 is fixedly connected to the lower half of the spiral plate 4, with its detection end facing the upper half of the spiral plate 5. The first displacement sensor 7 is used to detect the relative displacement between the upper half of the spiral plate 5 and the lower half of the spiral plate 4. The second displacement sensor 71 is installed inside the first spiral contact block 12, with its detection end facing the lower half of the spiral plate 4. The second displacement sensor 71 is used to detect the relative displacement between the lower half of the spiral plate 4 and the first spiral contact block 12. The third displacement sensor 72 is installed inside the second spiral contact block 13, with its output end facing the upper half of the spiral plate 5. The third displacement sensor 72 is used to detect the relative displacement between the upper half of the spiral plate 5 and the second spiral contact block 13.

[0049] The first energy-dissipating metal plate 6 is made of shape memory alloy material. Shape memory alloy material has a unique shape memory effect and superelasticity. As a smart material with special physical properties, shape memory alloy material has a unique shape memory effect and superelasticity. The shape memory effect means that this material can be given an initial shape under specific temperature conditions. When it is deformed by external force, it will automatically return to its original initial shape as long as it is heated to a certain transition temperature. When the structure is subjected to dynamic loads such as earthquakes and wind vibrations, the first energy-dissipating metal plate 6 can undergo large-scale deformation due to the characteristics of shape memory alloy material. In this process, it absorbs a large amount of energy, thereby effectively reducing the impact force on the structure and ensuring the safety and stability of the structure. The second energy-dissipating metal plate 61 is made of conventional strength steel plate material. The second energy-dissipating metal plate 61 is used in conjunction with the first energy-dissipating metal plate 6. Conventional strength steel plate material has good strength and toughness and can withstand a certain load in the structure. The second energy-dissipating metal plate 61 works in concert with the first energy-dissipating metal plate 6. When the structure is under load, both plates function together. The first energy-dissipating metal plate 6 utilizes the properties of shape memory alloy material for initial energy absorption and deformation buffering, while the second energy-dissipating metal plate 61 further shares the load due to its own strength and further dissipates energy through its own deformation. Together, they form a highly efficient energy-dissipating system, greatly enhancing the overall energy dissipation effect of the structure and improving its resistance to earthquakes and winds in complex environments.

[0050] Figure 8The following is a flowchart of the installation process for the spiral cross-type energy-dissipating web member used in a lattice-type wind turbine tower. First, the mounting base 3 is bolted onto the lattice-type tower, and the central main member 2 is bolted onto the mounting base 3, thus fixing the central main member 2. Then, the first energy-dissipating metal plate 6 and the second energy-dissipating metal plate 61 are fixedly connected to the central main member 2 using the third curved bolt 62, thus completing the installation of the energy-dissipating metal plates. Next, the lower half of the spiral thin plate 4 is inserted into the first thin plate mounting base 31 and fixed using the first curved bolt 32. Finally, the square connector at the bottom of the upper half of the spiral thin plate 5 is... The connector 53 is inserted into the mounting slot 41 and fixed with bolts. The second plate mounting seat 51 is installed on the upper end of the upper half of the spiral plate 5 through the second curved bolt 54. The second plate mounting seat 51 is fixedly connected to the upper end of the central main rod 2 to complete the installation of the spiral plate. Finally, the constraint sleeve 1 is lifted by a crane and fitted onto the central main rod 2. When installing the constraint sleeve 1, the second displacement sensor 71 and the third displacement sensor 72 monitor the distance between the spiral contact block and the spiral plate in real time. By adjusting the installation angle of the crane, the smooth installation of the constraint sleeve 1 is ensured.

[0051] Figure 9 This flowchart illustrates the monitoring process for the internal energy-dissipating components of the helical cross-type energy-dissipating web member used in a lattice-type wind turbine tower. Multiple distance sensors monitor the distance between the helical plates in real time. The real-time data is transmitted to the central processing unit (CPU) via a transmission device. The CPU processes the data. If the data from the first displacement sensor 7 is less than a preset threshold, it indicates that the helical plates have undergone significant torsion and shearing after multiple strong earthquake cycles. The CPU immediately issues an alarm, notifying maintenance personnel to arrive on-site for replacement. If the data from the first displacement sensor 7 is greater than the preset threshold, it indicates that the helical plates still have energy-dissipating capabilities and can be used normally. If the data from the displacement sensors at the same location are inconsistent, it indicates that the helical plates have experienced asymmetric hysteresis after multiple strong earthquake cycles. The CPU immediately issues an alarm, notifying maintenance personnel to arrive on-site for maintenance. If the data from the displacement sensors at the same location are consistent, the system is in normal operation. This automatic monitoring process ensures the energy dissipation characteristics of the helical cross-type energy-dissipating web member used in a lattice-type wind turbine tower and effectively protects the central main pole 2.

[0052] Example 1: When installing the spiral cross-type energy-dissipating web members for lattice-type wind turbine towers, first, the mounting base 3 is fixed to the lattice-type tower with bolts. Then, the central main rod 2 is fixed to the mounting base 3 with bolts. Next, the first energy-dissipating metal plate 6 and the second energy-dissipating metal plate 61 are fixed to the central main rod 2 with the third curved bolt 62. Then, the lower half of the spiral thin plate 4 is inserted into the first thin plate mounting seat 31 and fixed with the first curved bolt 32. The square connector 53 at the bottom of the upper half of the spiral thin plate 5 is inserted into the mounting slot 41 and fixed with bolts. The upper end is installed with the second thin plate mounting seat 51 through the second curved bolt 54 and fixed to the upper end of the central main rod 2. Finally, the constraint sleeve 1 is fitted onto the central main rod 2 with a crane. During installation, the second displacement sensor 71 and the third displacement sensor 72 monitor the distance between the spiral contact block and the spiral thin plate in real time, and the crane angle is adjusted to ensure smooth installation.

[0053] In practical applications, when an earthquake occurs, the central main member 2 is subjected to tension and compression. The lower helical sheet 4 and the upper helical sheet 5 undergo simultaneous torsional and shear deformation. The geometry of the helical sheets causes a gradual change in stress distribution. The web members absorb energy through continuous torsion, forming a "wide and thick spatial hysteresis loop." The double-helix design allows the web members to maintain high stability under compression and bending, delaying buckling and improving cumulative energy dissipation capacity. The first energy-dissipating metal plate 6 is made of shape memory alloy material, which, thanks to its shape memory effect and superelasticity, deforms significantly under dynamic loads to absorb energy. The second energy-dissipating metal plate 61 is made of conventional strength steel plate material. Together, they form a highly efficient energy dissipation system, enhancing the structure's earthquake and wind resistance.

[0054] Example 2: In daily use, the spiral cross-type energy-dissipating web member used in a lattice-type wind turbine tower is monitored in real time by multiple distance detection devices. The first displacement sensor 7 detects the relative displacement between the upper spiral web member 5 and the lower spiral web member 4; the second displacement sensor 71 detects the relative displacement between the lower spiral web member 4 and the first spiral contact block 12; and the third displacement sensor 72 detects the relative displacement between the upper spiral web member 5 and the second spiral contact block 13. The transmission device transmits the real-time data to the central processing unit, which processes the data. If the data from the first displacement sensor 7 is less than a preset threshold, it indicates that the spiral web member has undergone significant torsion and shear after multiple strong vibration cycles, and the central processing unit issues an alarm to notify maintenance personnel to replace it on-site. If the data is greater than the preset threshold, it indicates that the spiral web member still has energy-dissipating function and can be put into normal use. If the data from the displacement sensors at the same position are inconsistent, it indicates that the spiral web member has asymmetrical hysteresis, and the central processing unit issues an alarm to notify maintenance personnel to perform on-site maintenance. If the data are consistent, it can be used normally. The automatic monitoring process ensures the energy-dissipating characteristics of the web member and protects the central main member 2.

[0055] Furthermore, when it is necessary to replace parts, by reversing the operation of installing the constraint sleeve 1 in Embodiment 1, the external constraint sleeve 1 can be disassembled and the first energy-consuming metal plate 6, the second energy-consuming metal plate 61, the lower half spiral plate 4 and the upper half spiral plate 5 can be replaced, thereby restoring the function of the component without replacing the entire web member.

[0056] Finally, it should be noted that the above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower, characterized in that, include: A central main rod (2) is fitted with a constraint sleeve (1), and multiple contact limiting blocks are fixedly connected to the inner wall of the constraint sleeve (1). An energy-consuming metal plate is installed on the central main rod (2). Mounting base (3) is fixedly connected to the bottom of the central main rod (2). The mounting base (3) is provided with a lower half spiral plate (4) and an upper half spiral plate (5) is provided on the lower half spiral plate (4). The upper end of the upper half spiral plate (5) is located at the upper end of the central main rod (2). Multiple distance detection components are installed between the central main rod (2) and the constraint sleeve (1), and a transmission component is installed on the constraint sleeve (1).

2. The spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 1, characterized in that, The central main rod (2) is provided with a second connecting end (21), and the central main rod (2) is stamped with a wire hole (22).

3. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 2, characterized in that, A first thin plate mounting seat (31) is fixedly connected to the mounting base (3). The lower half spiral thin plate (4) is mounted on the first thin plate mounting seat (31). A first curved bolt (32) is threaded between the first thin plate mounting seat (31) and the lower half spiral thin plate (4). A fixed connecting ring (52) is fixedly connected to the side wall of the second connecting end (21) by bolts. A second thin plate mounting seat (51) is fixedly connected to the outer peripheral wall of the fixed connecting ring (52). The upper half spiral thin plate (5) is installed inside the second thin plate mounting seat (51). A second curved bolt (54) is threaded between the second thin plate mounting seat (51) and the upper half spiral thin plate (5).

4. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 1, characterized in that, The lower half of the spiral blade (4) is provided with an installation slot (41) at its upper end. The upper half of the spiral blade (5) is fixedly connected to a square connector (53) at its lower end. The square connector (53) is inserted into the installation slot (41). The square connector (53) is fixedly connected to the lower half of the spiral blade (4) by bolts. The inner sides of the lower half of the spiral blade (4) and the upper half of the spiral blade (5) are tightly attached to the outer peripheral wall of the central main rod (2). The outer sides of the lower half of the spiral blade (4) and the upper half of the spiral blade (5) are tightly attached to the inner wall of the constraint sleeve (1).

5. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 2, characterized in that, The lower end of the constraint sleeve (1) is fixedly connected to a connecting seat (11), the upper end of the constraint sleeve (1) is fixedly connected to a first connecting end (14), the first connecting end (14) abuts against the second connecting end (21), and an mounting plate (15) is fixedly connected to the outer wall of the constraint sleeve (1).

6. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 5, characterized in that, The contact limiting block includes a first spiral contact block (12) and a second spiral contact block (13). The first spiral contact block (12) is fixedly connected to the constraint sleeve (1) near the connecting seat (11), and the second spiral contact block (13) is fixedly connected to the constraint sleeve (1) near the first connecting end (14). The constraint sleeve (1), the connecting seat (11), the first connecting end (14), the first spiral contact block (12) and the second spiral contact block (13) are integrally formed.

7. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 5, characterized in that, The transmission component includes a transmission connector (8) and a remote signal connector (81). The transmission connector (8) is mounted on the mounting plate (15) and is communicatively connected to the distance detection component. The remote signal connector (81) is mounted on the transmission connector (8).

8. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 1, characterized in that, The energy-consuming metal plate includes a first energy-consuming metal plate (6) and a second energy-consuming metal plate (61). The first energy-consuming metal plate (6) is installed in the middle of the central main rod (2), and the second energy-consuming metal plate (61) is installed on the outside of the first energy-consuming metal plate (6). A third curved bolt (62) is threadedly connected between the central main rod (2), the first energy-consuming metal plate (6), and the second energy-consuming metal plate (61).

9. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 6, characterized in that, The distance detection device includes a first displacement sensor (7), a second displacement sensor (71), and a third displacement sensor (72). The first displacement sensor (7) is fixedly connected to the lower half of the spiral sheet (4), and the detection end of the first displacement sensor (7) is directly opposite the upper half of the spiral sheet (5). The second displacement sensor (71) is installed in the first spiral contact block (12), and the detection end of the second displacement sensor (71) is directly opposite the lower half of the spiral sheet (4). The third displacement sensor (72) is installed in the second spiral contact block (13), and the output end of the third displacement sensor (72) is directly opposite the upper half of the spiral sheet (5).

10. A spiral cross-type energy-dissipating web member for a lattice-type wind turbine tower according to claim 8, characterized in that, The first energy-consuming metal plate (6) is made of shape memory alloy material, and the second energy-consuming metal plate (61) is made of conventional strength steel plate material.

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