Fan blade transportation intelligent damping device

Abstract

The application discloses a kind of fan blade transport intelligent damping device, comprising: clamp, clamping in fan blade;Base, installed in the side of clamp away from fan blade, the side of base away from clamp is equipped with multiple slots, slot is set along the circumferential direction of the plane center of base, plane center is equipped with fixed shaft;Supporting disc, the central axis of supporting disc is equipped with shaft hole, fixed shaft is movably arranged in shaft hole, supporting disc forms limit piece, limit piece is detachably inserted in a slot, fixed shaft is installed for locking supporting disc locking piece;Two swing arms arranged coaxially, two swing arms are respectively connected to the circumferential surface of supporting disc, swing arm is arranged along the radial direction of supporting disc;Hammer, multiple hammers are detachably installed on swing arm.The application solves the problem that existing fan blade transport damping device cannot be applied to severe shaking condition.

Description

Technical Field

[0001] This invention relates to the field of vibration reduction technology, specifically to an intelligent vibration reduction device for transporting wind turbine blades. Background Technology

[0002] Mountain wind power is a type of wind power that deploys wind turbines on ridges and slopes in mountainous areas with slopes greater than 5° and significant topographic relief. It generates electricity by relying on the stable and high-speed wind resources of mountains. Its turbine locations are dispersed and flexible in layout, does not occupy high-quality arable land, and has high power generation efficiency per unit area, which is suitable for the development needs of my country's mountainous regions. The core pain points are that the complex terrain makes equipment transportation and construction hoisting difficult, extreme weather is frequent, and grid connection and subsequent operation and maintenance costs are relatively high. It is an important supplement and key direction for the large-scale development of wind power in my country.

[0003] Existing shock absorption devices for transporting wind turbine blades (such as the Chinese patent with announcement number CN221986337U) provide passive shock absorption, which is effective under good road conditions but cannot be used in conditions of severe shaking. Summary of the Invention

[0004] To overcome the shortcomings of existing technologies, an intelligent vibration damping device for transporting wind turbine blades is provided to solve the problem that existing vibration damping devices for transporting wind turbine blades cannot be used in severe shaking conditions.

[0005] To achieve the above objectives, an intelligent vibration damping device for wind turbine blade transportation is provided, comprising: Clamps are used to hold the wind turbine blades; A base is installed on the side of the clamp away from the wind turbine blades. The side of the base away from the clamp has multiple slots. The slots are arranged in a circumferential direction along the center of the plane of the side of the base. A fixed shaft is provided at the center of the plane. A support plate has a shaft hole on its central axis, and a fixed shaft is movably inserted into the shaft hole. The support plate forms a limiting member, which is detachably inserted into a slot. The fixed shaft is equipped with a locking member for locking the support plate. Two swing arms are coaxially arranged, and the two swing arms are respectively connected to the circumferential surface of the support plate. The swing arms are arranged along the radial direction of the support plate. Vibrating hammers, a plurality of which are detachably mounted on the swing arm.

[0006] Furthermore, on the side of the clamp facing the wind turbine blade, two opposing clamping arm plates are formed, and pressure plates are respectively installed on the opposite sides of the two clamping arm plates in an adjustable position. A clamping space for clamping the tail end of the wind turbine blade is formed between the pressure plates of the two clamping arm plates.

[0007] Furthermore, the clamping arm plate has a threaded hole, and the pressure plate is connected to a screw, which is screwed into the threaded hole.

[0008] Furthermore, the slots are arranged radially along the center of the plane, and the plurality of slots are arranged at equal intervals along the circumferential direction of the center of the plane.

[0009] Furthermore, the locking member has a threaded hole, the fixed shaft has an external thread, the threaded hole of the locking member is screwed into the fixed shaft, and the locking member presses against the side of the support plate away from the base.

[0010] Furthermore, a baffle is formed in the middle of the swing arm, and the baffle abuts against the side of the plurality of vibrating hammers facing the support plate. Furthermore, the vibratory hammer has a threaded hole, the swing arm has an external thread, and the threaded hole of the vibratory hammer is screwed into the swing arm.

[0011] The beneficial effect of the present invention is that the intelligent vibration reduction device for transporting wind turbine blades of the present invention, by setting a rotatable and adjustable support plate and multiple slots distributed along the circumferential direction, together with limiting and locking components, can flexibly adjust the orientation of the swing arm according to the actual vibration direction of the wind turbine blades during transportation, so that the swing direction of the vibrating hammer is consistent with or opposite to the main excitation direction, thereby effectively offsetting the violent shaking in multiple directions and large amplitude, overcoming the defect that the existing passive vibration reduction device is only suitable for smooth road conditions.

[0012] The intelligent vibration reduction device for transporting wind turbine blades of the present invention has multiple vibrating hammers detachably mounted on its swing arm. By adjusting the number and position of the vibrating hammers, the equivalent mass and natural frequency of the vibration reduction system can be changed to adapt to the vibration characteristics of wind turbine blades of different lengths and masses as well as different road conditions, thereby achieving targeted intelligent vibration reduction and improving the stability and safety of the transportation process. Attached Figure Description

[0013] Other features, objects, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings: Figure 1 This is a schematic diagram of the intelligent vibration reduction device for transporting wind turbine blades according to an embodiment of the present invention.

[0014] Figure 2 This is a schematic diagram of the connection node between the support plate and the swing arm in an embodiment of the present invention.

[0015] Figure 3 This is a schematic diagram of the base structure according to an embodiment of the present invention.

[0016] Figure 4 This is a front view of the base according to an embodiment of the present invention.

[0017] Figure 5 This is a rear view of the base according to an embodiment of the present invention.

[0018] Figure 6 This is a rear view of the support disk according to an embodiment of the present invention.

[0019] Figure 7 This is a side view of the support disk according to an embodiment of the present invention.

[0020] Figure 8 This is a schematic diagram of the connection node between the support disk and the base in an embodiment of the present invention.

[0021] Figure 9 This is a front view of the clamp according to an embodiment of the present invention. Figure 10 This is a side view of the fixture according to an embodiment of the present invention.

[0022] Figure label: Fixture 1, clamping arm plate 11, pressure plate 12, screw 13; Base 2, fixed shaft 21, locking element 22, slot a; Support plate 3, limiting component 31; Swing arm 4, baffle 41; Vibrating hammer 5. Detailed Implementation

[0023] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, only the parts relevant to the invention are shown in the accompanying drawings.

[0024] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0025] Reference Figures 1 to 10 As shown, the present invention provides an intelligent vibration reduction device for transporting wind turbine blades, comprising: a clamp 1, a base 2, a support plate 3, a swing arm 4, and a vibratory hammer 5.

[0026] The clamp 1 holds the wind turbine blade. In this embodiment, the clamp holds the tail end of the wind turbine blade.

[0027] The base is cylindrical. The base 2 is installed on the side of the clamp 1 away from the fan blades (i.e., one end face of the base). Multiple slots a are provided on the side of the base 2 away from the clamp 1. The slots a are arranged circumferentially along the center of the plane of the side face of the base 2.

[0028] As a preferred implementation method, see [reference]. Figure 4As shown, slot a is arranged radially along the center of the plane. Multiple slots a are arranged at equal intervals along the circumferential direction of the center of the plane.

[0029] In this embodiment, there are six slots. The six slots are arranged in a star-shaped pattern. A fixed shaft 21 is provided at the center of the plane on one side of the base.

[0030] The support plate 3 is disc-shaped. In this embodiment, the outer diameter of the support plate is adapted to the outer diameter of the base. A shaft hole b is provided along the central axis of the support plate 3. The fixed shaft 21 is movably inserted into the shaft hole b. The fixed shaft is rotatable in the shaft hole of the support plate and slides along the depth direction of the shaft hole. The support plate 3 forms a limiting member 31. The limiting member is eccentrically disposed on the side of the support plate facing the base. The limiting member 31 is detachably inserted into a slot a. The limiting member is cylindrical. The outer diameter of the limiting member is adapted to the width of the slot opening.

[0031] The fixed shaft 21 is detachably mounted with a locking element 22. The locking element 22 is used to lock the support plate 3.

[0032] In a preferred embodiment, the locking member 22 has a threaded hole. The fixed shaft 21 has an external thread. The threaded hole of the locking member 22 is screwed into the fixed shaft 21. The locking member 22 presses against the side of the support plate 3 away from the base 2.

[0033] There are two swing arms 4. The two swing arms 4 are coaxially arranged. The swing arms 4 are arranged along the radial direction of the support plate 3. The two swing arms 4 are respectively connected to the circumferential surface of the support plate 3.

[0034] In this embodiment, the swing arm detachably supports the circumferential surface of the disk. Multiple vibratory hammers 5 are detachably mounted on the swing arm 4.

[0035] For details, please refer to Figure 2 The vibratory hammer 5 has a threaded hole. The swing arm 4 has an external thread. The threaded hole of the vibratory hammer 5 is screwed into the swing arm 4.

[0036] Combination Figure 1 and Figure 2 As shown, a baffle 41 is formed in the middle of the swing arm 4. The baffle 41 abuts against the side of the plurality of vibrating hammers 5 facing the support plate 3.

[0037] See Figure 9 and Figure 10 As shown, two opposing clamping arm plates 11 are formed on the side of the clamp 1 facing the wind turbine blade. Pressure plates 12 are respectively mounted in adjustable positions on the opposing sides of the two clamping arm plates 11. A clamping space is formed between the pressure plates 12 of the two clamping arm plates 11. The clamping space is used to clamp the tail end of the wind turbine blade.

[0038] Continue reading Figure 10As shown, the clamping arm plate 11 has a threaded hole. The pressure plate 12 is connected to a screw 13. The screw 13 is screwed into the threaded hole.

[0039] This invention provides a method for reducing the vibration of wind turbine blades using an intelligent vibration reduction device for wind turbine blade transportation, comprising the following steps: S1. Clamp clamp 1 to the tail end of the wind turbine blade.

[0040] S2. Adjust the tilt angle of the swing arm according to the vertical distance between the vibratory hammer 5 and the fan blades at the installation location to ensure that the vibratory hammer 5 will not interfere with the blades and cause damage to the blades within the working range.

[0041] After the tilt angle of the swing arm is determined, the limiting member is inserted into a slot corresponding to the position of the base, and the locking member is screwed onto the fixed shaft, so that the locking member presses against the side of the support plate away from the base to prevent the support plate from rotating or sliding.

[0042] S3. According to the present invention, the distance between the installation position of the intelligent vibration reduction device for transporting wind turbine blades and the root of the wind turbine blade is adjusted. The number of vibrating hammers on each swing arm is adjusted. When the distance to the root of the blade is closer, the number of vibrating hammers 5 is increased. When the distance to the root of the blade is farther, the number of vibrating hammers 5 can be reduced. However, at least one vibrating hammer 5 is installed at each end, and the number of vibrating hammers 5 on the two swing arms 4 is equal.

[0043] The principle of intelligent vibration reduction in the intelligent vibration reduction device for transporting machine blades according to the present invention: During the transportation of the blades in mountainous conditions, the blades vibrate violently due to the bumps of the transport vehicle. At this time, the vibrating hammer 5 automatically applies a force in the opposite direction to the vibration direction of the blade due to its own inertia. When the blade returns to its upright position, the vibrating hammer 5 swings in the opposite direction, which can also counteract the force when the blade returns to its upright position.

[0044] Under transportation conditions, the vibration direction is diverse and changes frequently. To solve this problem, the swing arm 4 adopts a cylindrical structure to ensure that the rotational inertia is the same in all directions, thus ensuring the consistency of action in all directions and the sensitivity of response.

[0045] The system force transmission method is that the inertia of the vibrating hammer 5 causes the swing arm 4 to bend and deform, thereby generating torque that acts on the support plate 3, and then is transmitted to the blade through the clamp 1.

[0046] The intelligent vibration damping device for transporting wind turbine blades of the present invention, by setting a rotatable and adjustable support plate and multiple slots distributed along the circumferential direction, together with limiting and locking components, can flexibly adjust the orientation of the swing arm according to the actual vibration direction experienced by the wind turbine blades during transportation, so that the swing direction of the vibrating hammer is consistent with or opposite to the main excitation direction, thereby effectively offsetting the violent shaking with multiple directions and large amplitude, overcoming the defect of existing passive vibration damping devices that are only suitable for smooth road conditions.

[0047] The intelligent vibration reduction device for transporting wind turbine blades of the present invention has multiple vibrating hammers detachably mounted on its swing arm. By adjusting the number and position of the vibrating hammers, the equivalent mass and natural frequency of the vibration reduction system can be changed to adapt to the vibration characteristics of wind turbine blades of different lengths and masses as well as different road conditions, thereby achieving targeted intelligent vibration reduction and improving the stability and safety of the transportation process.

[0048] The clamp of the intelligent vibration damping device for transporting wind turbine blades of the present invention adopts an adjustable pressure plate structure, which can reliably clamp the tail ends of wind turbine blades of different specifications. The support plate and the base are quickly positioned through slots and limiting components, and locked by locking components. The operation is simple, and the direction and parameters can be adjusted without complicated tools, reducing the difficulty of on-site operation.

[0049] In the intelligent vibration damping device for transporting wind turbine blades of the present invention, two swing arms are coaxially connected to the circumferential surface of the support plate and extend radially. An equal number of vibrating hammers are installed on the two swing arms, which ensures the dynamic balance of the vibration damping device during operation, avoids additional vibration caused by a single swing arm, ensures that the damping force is stably transmitted to the wind turbine blades, and ensures smooth and reliable system operation.

[0050] The intelligent vibration reduction device for wind turbine blade transportation of the present invention can reduce the risk of damage to wind turbine blades due to fatigue or impact by effectively suppressing severe vibrations during transportation, extend the service life of the blades, reduce maintenance and replacement costs, and improve transportation efficiency in complex terrains such as mountains, providing technical support for cost reduction and efficiency improvement in wind power projects.

[0051] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the invention involved in this application is not limited to technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A smart vibration damping device for transporting wind turbine blades, characterized in that, include: Clamps are used to hold the wind turbine blades; A base is installed on the side of the clamp away from the wind turbine blades. The side of the base away from the clamp has multiple slots. The slots are arranged in a circumferential direction along the center of the plane of the side of the base. A fixed shaft is provided at the center of the plane. A support plate has a shaft hole on its central axis, and a fixed shaft is movably inserted into the shaft hole. The support plate forms a limiting member, which is detachably inserted into a slot. The fixed shaft is equipped with a locking member for locking the support plate. Two swing arms are coaxially arranged, and the two swing arms are respectively connected to the circumferential surface of the support plate. The swing arms are arranged along the radial direction of the support plate. Vibrating hammers, a plurality of which are detachably mounted on the swing arm.

2. The intelligent vibration reduction device for transporting wind turbine blades according to claim 1, characterized in that, The clamp has two opposing clamping arm plates on the side facing the wind turbine blade. Pressure plates are respectively installed on the opposite sides of the two clamping arm plates in adjustable positions, and a clamping space for clamping the tail end of the wind turbine blade is formed between the pressure plates of the two clamping arm plates.

3. The intelligent vibration reduction device for transporting wind turbine blades according to claim 2, characterized in that, The clamping arm plate has a threaded hole, and the pressure plate is connected to a screw, which is screwed into the threaded hole.

4. The intelligent vibration reduction device for transporting wind turbine blades according to claim 1, characterized in that, The slots are arranged radially along the center of the plane, and the plurality of slots are arranged at equal intervals along the circumferential direction of the center of the plane.

5. The intelligent vibration reduction device for transporting wind turbine blades according to claim 1, characterized in that, The locking member has a threaded hole, the fixed shaft has an external thread, the threaded hole of the locking member is screwed into the fixed shaft, and the locking member presses against the side of the support plate away from the base.

6. The intelligent vibration reduction device for transporting wind turbine blades according to claim 1, characterized in that, A baffle is formed in the middle of the swing arm, and the baffle abuts against the side of the plurality of vibrating hammers facing the support plate.

7. The intelligent vibration reduction device for transporting wind turbine blades according to claim 6, characterized in that, The vibratory hammer has a threaded hole, and the swing arm has an external thread. The threaded hole of the vibratory hammer is screwed into the swing arm.

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