CN213685062U - Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower - Google Patents
Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower Download PDFInfo
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- CN213685062U CN213685062U CN202022650084.7U CN202022650084U CN213685062U CN 213685062 U CN213685062 U CN 213685062U CN 202022650084 U CN202022650084 U CN 202022650084U CN 213685062 U CN213685062 U CN 213685062U
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- 241001330002 Bambuseae Species 0.000 claims abstract description 11
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Abstract
The utility model relates to a damping technical field, concretely relates to harmonious mass damper of three pendulum rod-type eddy current for fan tower section of thick bamboo damping, including outer support protection subassembly, mass block subassembly, magnet steel component, conductor plate subassembly and three pendulum rod subassembly, outer support protection subassembly and mass block subassembly are connected respectively to every pendulum rod subassembly's both ends, and magnet steel component fixed mounting is in mass block subassembly below, and conductor plate subassembly and magnet steel component set up relatively and have the clearance between the two, conductor plate subassembly and outer support protection subassembly fixed connection. The utility model discloses be provided with three pendulum rod subassembly, can control structure along the vibration of arbitrary direction, can change the frequency that the single pendulum motion was done to the harmonious mass damper of eddy current through changing the long length of pendulum motion pendulum, adapt to the requirement of different fan motors, adopt eddy current damping, the starting sensitivity is high, and the damping effect is obvious, has improved fan life and generating efficiency, and the weeping problem can not appear, and contactless does not have wearing and tearing.
Description
Technical Field
The utility model relates to a damping technical field, especially a harmonious mass damper of three pendulum rod-type eddy currents for fan tower section of thick bamboo damping.
Background
Under the effect of wind load, the level can take place to the vibration for the fan tower section of thick bamboo, and when vibration amplitude reached the threshold value, the fan stop work led to the power generation loss, meanwhile, under the vibration condition of long-term reciprocal, the accessory of fixing on the fan tower section of thick bamboo can take place not hard up, and the tower section of thick bamboo also has fatigue damage, and serious still can lead to the tower section of thick bamboo to collapse the damage accident, brings very big hidden danger for the safety, and urgent need installation damping device is in order to control the tower section of thick bamboo vibration.
The conventional vibration damping devices are generally of a mechanical type and a hydraulic type, and the principles of the two vibration damping devices are that contact type mechanical friction energy is converted into heat energy to prolong the action time of an impact load and absorb and convert the energy of the impact load. However, the mechanical friction damper has large starting friction force, and the oil pressure viscous damper has oil leakage phenomenon, so that the durability and the reliability can not meet the requirements.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a: aiming at the problems that a mechanical friction damper in the prior art has large starting friction force, an oil pressure viscous damper has oil leakage phenomenon, and the durability and reliability can not meet the vibration reduction requirement of a fan tower cylinder, the three-swing-rod type eddy current tuned mass damper for reducing the vibration of the fan tower cylinder is provided.
In order to realize the purpose, the utility model discloses a technical scheme be:
the utility model provides a harmonious mass damper of three pendulum rod formula eddy current for fan tower section of thick bamboo damping, includes outer support protection subassembly, mass block subassembly, magnetic steel component, conductor plate subassembly and three pendulum rod subassembly, every the both ends of pendulum rod subassembly are connected respectively outer support protection subassembly with the mass block subassembly, magnetic steel component fixed mounting be in mass block subassembly below, conductor plate subassembly with the magnetic steel component sets up relatively and has the clearance between the two, conductor plate subassembly with outer support protection subassembly fixed connection.
When the fan vibrates, the excitation can be transmitted to the outer support protection component through the connecting platform, then transmitted to the mass block component through the swing rod component, the mass block component vibrates and swings, so that the magnetic steel component and the conductor plate component move relatively to cut magnetic induction lines, eddy current is generated and interacts with an original magnetic field generated by the magnetic steel, force for blocking the relative movement of the conductor plate and the original magnetic field is generated, a vibration reduction effect is generated, meanwhile, the eddy current effect can generate heat, and mechanical energy generated by the fan vibration is converted into heat energy to be dissipated.
The utility model discloses be provided with three pendulum rod subassembly, can control the structure along the vibration of arbitrary direction, can change the frequency that the single pendulum motion was done to the harmonious mass damper of eddy current through changing the long length of simple pendulum motion pendulum to satisfy the requirement that adapts to different wind-powered machines. The utility model discloses a three pendulum rod structures adopt electric eddy current damping, and starting sensitivity is high, and is obvious to fan vibration damping effect, has improved fan life and generating efficiency, and does not have the working fluid, the weeping problem can not appear, and contactless non-wearing and tearing do not have friction damping, and the durability is good, and the reliability is high, does not need the maintenance. The requirement of the fan on the high reliability of the accessory equipment is met to the maximum extent, and the fan tower is very suitable for the condition of inconvenient maintenance of the fan tower.
As the utility model discloses an optimal scheme, all the pendulum rod subassembly is followed quality piece subassembly circumference equipartition, at this moment, the damping effect is better.
As the utility model discloses a preferred scheme, every the pendulum rod subassembly all includes adjusts pendulum rod and universal joint, the both ends of adjusting the pendulum rod are passed through the universal joint is connected respectively the outer support protection subassembly with the quality piece subassembly.
As the preferred scheme of the utility model, adjust the pendulum rod and be rigid structure.
As the preferred scheme of the utility model, adjust the pendulum rod and be the rigidity post.
As the utility model discloses a preferred scheme, the magnet steel assembly includes magnet steel mounting bracket and magnet steel, the magnet steel mounting bracket with quality piece subassembly bottom fixed connection, magnet steel fixed connection in the magnet steel mounting bracket, just the magnet steel is located the below of magnet steel mounting bracket.
As the preferred aspect of the present invention, the conductor plate assembly includes a conductor plate and a conductor plate mounting bracket, the conductor plate mounting bracket is fixedly connected to the outer support protection assembly, the conductor plate is fixedly connected to the conductor plate mounting bracket, and the conductor plate is located above the conductor plate mounting bracket.
As the utility model discloses an optimized scheme, outer support protection subassembly the mass block subassembly magnet steel component conductor plate subassembly and three the pendulum rod subassembly is metal component, and the durability is good, need not often to change.
As the utility model discloses an optimal scheme, the conductor board is the copper, and the durability is good, need not often to change.
As the utility model discloses a preferred scheme, outer support protection subassembly includes interconnect's end plate and urceolus, outer support protection subassembly is used for being connected with the fan tower section of thick bamboo.
As the preferred scheme of the utility model, the mass block subassembly is formed by the stack of a plurality of circular mass blocks that the thickness is unequal.
As the utility model discloses an optimal scheme, circular quality piece is the steel billet, and the durability is good, need not often to change.
As the utility model discloses an optimal scheme, a harmonious mass damper of three pendulum rod-type eddy current for fan tower section of thick bamboo damping still includes a plurality of transportation fixed blocks of wood, all the transportation is fixed to be followed with the block of wood circular mass piece circumference equipartition, the transportation fixed with the block of wood with outer support protection subassembly fixed connection.
To sum up, owing to adopted above-mentioned technical scheme, the beneficial effects of the utility model are that:
1. the utility model discloses be provided with three pendulum rod subassembly, can control the structure along the vibration of arbitrary direction, can change the frequency that the single pendulum motion was done to the harmonious mass damper of eddy current through changing the long length of simple pendulum motion pendulum to satisfy the requirement that adapts to different wind-powered machines. The utility model discloses a three pendulum rod structures adopt electric eddy current damping, and starting sensitivity is high, and is obvious to fan vibration damping effect, has improved fan life and generating efficiency, and does not have the working fluid, the weeping problem can not appear, and contactless non-wearing and tearing do not have friction damping, and the durability is good, and the reliability is high, does not need the maintenance. The requirement of the fan on the high reliability of the accessory equipment is met to the maximum extent, and the fan tower is very suitable for the condition of inconvenient maintenance of the fan tower.
2. The utility model discloses an each part all adopts the high metal component of durability, need not often to change, and work need not the power in the magnetic field, does not have additional rigidity.
3. The utility model discloses can popularize and apply in the wind power generation field, provide the powerful guarantee for the promotion of wind-powered electricity generation efficiency availability, greatly reduced the cost of maintenance expense of fan vibration, reduce the fault time of fan, create bigger economic benefits for wind power generation production. Simultaneously, also can be applied to other fields outside the wind-powered electricity generation, on having the structure thing of damping demand, all can use the utility model discloses.
Drawings
Fig. 1 is a schematic three-dimensional structure diagram of a three-pendulum rod type eddy current tuned mass damper for damping a fan tower.
Figure 2 is a schematic structural view of figure 1 with the outer barrel hidden,
fig. 3 is a front view of the three-pendulum-rod eddy current tuned mass damper for damping a wind turbine tower of the present invention.
Fig. 4 is a sectional view a-a of fig. 3.
Icon: 1-outer support protection component, 11-end plate, 12-outer cylinder, 2-oscillating bar component, 21-adjusting oscillating bar, 22-universal joint connecting seat, 23-universal joint, 3-mass block component, 4-wood block for transportation and fixation, 5-magnetic steel component, 51-magnetic steel mounting rack, 52-magnetic steel, 6-conductor plate component, 61-conductor plate and 62-conductor plate mounting rack.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the invention.
Example 1
As shown in fig. 1-4, a three-pendulum rod type eddy current tuned mass damper for vibration reduction of a wind turbine tower comprises an outer support protection component 1, three pendulum rod components 2, a mass block component 3, three wood blocks 4 for transportation and fixation, a magnetic steel component 5 and a conductor plate component 6. The outer supporting protection component 1, the three swing rod components 2, the mass block component 3, the magnetic steel component 5 and the conductor plate component 6 are all metal components.
The outer support protection component 1 comprises an end plate 11 and an outer cylinder 12 which are connected with each other, and the outer support protection component 1 is used for being connected with a fan tower. The end plate 11 includes an upper end plate and a lower end plate, and both ends of the outer cylinder 12 are respectively connected to the upper end plate and the lower end plate to form a semi-closed space for protecting internal components. And the three oscillating bar assemblies 2, the mass block assembly 3, the wood block 4 for transportation and fixation, the magnetic steel assembly 5 and the conductor plate assembly 6 are all positioned in the semi-closed space.
Three pendulum rod subassembly 2 all includes regulation pendulum rod 21, universal joint connecting seat 22 and universal joint 23 along mass block subassembly 3 circumference equipartition, and every pendulum rod subassembly 2 is connected the up end plate of outer support protection component 1 through universal joint connecting seat 22 and universal joint 23, the other end through universal joint connecting seat 22 and universal joint 23 connection mass block subassembly 3 through universal joint connecting seat 21, universal joint 23. Preferably, the adjusting swing link 21 is of a rigid column structure.
The mass block assembly 3 is fixedly arranged at the lower ends of the three swing rod assemblies 2, and the swing rod assemblies 2 drive the mass block assembly 3 to vibrate when swinging. The mass block assembly 3 is formed by stacking a plurality of circular mass blocks with different thicknesses, and the circular mass blocks can be steel blocks.
The three wood blocks 4 for transportation and fixation are uniformly distributed along the circumferential direction of the circular mass block and are positioned at the periphery of the mass block assembly 3, and the three wood blocks 4 for transportation and fixation are fixedly connected with the outer cylinder 12.
The magnetic steel 52 and the conductor plate 61 are oppositely arranged and have a gap therebetween, when the fan vibrates, excitation can be transmitted to the outer supporting protection component 1 through the connecting platform, then transmitted to the mass block component 3 through the swing rod component 2, the mass block component 3 vibrates and swings, so that relative motion between the magnetic steel 52 and the conductor plate 61 is brought to the effect that magnetic induction line cutting is carried out, eddy current is generated and interacts with an original magnetic field generated by the magnetic steel 52, a force for hindering the relative motion between the conductor plate 61 and the original magnetic field is generated, a vibration reduction effect is generated, meanwhile, the eddy current effect can generate heat, namely, mechanical energy generated by the fan vibration is converted into heat energy to be dissipated.
The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. The utility model provides a harmonious mass damper of three pendulum rod formula eddy current for fan tower section of thick bamboo damping, a serial communication port, including outer support protection subassembly (1), mass block subassembly (3), magnetic steel assembly (5), conductor board subassembly (6) and three pendulum rod subassembly (2), every the both ends of pendulum rod subassembly (2) are connected respectively outer support protection subassembly (1) with mass block subassembly (3), magnetic steel assembly (5) fixed mounting be in mass block subassembly (3) below, conductor board subassembly (6) with magnetic steel assembly (5) set up relatively and have the clearance between the two, conductor board subassembly (6) with outer support protection subassembly (1) fixed connection.
2. The tuned mass damper of eddy current for wind turbine tower damping according to claim 1, wherein all the pendulum rod assemblies (2) are circumferentially distributed uniformly along the mass block assemblies (3).
3. The tuned mass damper of eddy current for wind turbine tower damping according to claim 2, wherein each pendulum rod assembly (2) comprises an adjusting pendulum rod (21) and a universal joint (23), and both ends of the adjusting pendulum rod (21) are respectively connected to the outer support protection assembly (1) and the mass block assembly (3) through the universal joint (23).
4. The tuned mass damper of eddy currents with three pendulum rods for wind turbine tower damping of claim 3, characterized in that said pendulum adjustment lever (21) is a rigid structure.
5. The tuned mass damper of eddy currents with three pendulum rods for wind turbine tower damping of claim 4, characterized in that the adjusting pendulum rods (21) are rigid posts.
6. The tuned mass damper of eddy currents with three pendulum rods for wind turbine tower damping according to any one of claims 1 to 5, wherein said magnetic steel assembly (5) comprises a magnetic steel mounting bracket (51) and magnetic steel (52), said magnetic steel mounting bracket (51) is fixedly connected to the bottom of said mass block assembly (3), said magnetic steel (52) is fixedly connected to said magnetic steel mounting bracket (51), and said magnetic steel (52) is located below said magnetic steel mounting bracket (51).
7. The tuned mass damper of the triple-pendulum rod type eddy current damper for wind turbine tower damping according to any of claims 1 to 5, wherein the conductor plate assembly (6) comprises a conductor plate (61) and a conductor plate mounting bracket (62), the conductor plate mounting bracket (62) is fixedly connected with the outer support protection assembly (1), the conductor plate (61) is fixedly connected to the conductor plate mounting bracket (62), and the conductor plate (61) is located above the conductor plate mounting bracket (62).
8. A three-pendulum-rod eddy current tuned mass damper for wind turbine tower damping according to any of claims 1-5, wherein the outer support protection assembly (1) comprises an end plate (11) and an outer cylinder (12) connected to each other, the outer support protection assembly (1) being adapted to be connected to a wind turbine tower.
9. The tuned mass damper of the three-pendulum rod type eddy current for wind turbine tower damping according to any of claims 1-5, wherein the mass block assembly (3) is formed by stacking a plurality of circular mass blocks with different thicknesses.
10. The tuned mass damper of eddy current for wind turbine tower damping according to claim 9, further comprising a plurality of wood blocks for transportation and fixation (4), all the wood blocks for transportation and fixation (4) are uniformly distributed along the circumference of the circular mass block, and the wood blocks for transportation and fixation (4) are fixedly connected with the outer support protection component (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650084.7U CN213685062U (en) | 2020-11-16 | 2020-11-16 | Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022650084.7U CN213685062U (en) | 2020-11-16 | 2020-11-16 | Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower |
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| CN213685062U true CN213685062U (en) | 2021-07-13 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392893A (en) * | 2020-11-16 | 2021-02-23 | 湖南省潇振工程科技有限公司 | Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower |
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- 2020-11-16 CN CN202022650084.7U patent/CN213685062U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112392893A (en) * | 2020-11-16 | 2021-02-23 | 湖南省潇振工程科技有限公司 | Three-swing-rod type eddy current tuned mass damper for vibration reduction of fan tower |
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