CN220378780U - Electromagnetic damping coupling magnetic pole protection device - Google Patents
Electromagnetic damping coupling magnetic pole protection device Download PDFInfo
- Publication number
- CN220378780U CN220378780U CN202223148933.4U CN202223148933U CN220378780U CN 220378780 U CN220378780 U CN 220378780U CN 202223148933 U CN202223148933 U CN 202223148933U CN 220378780 U CN220378780 U CN 220378780U
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- CN
- China
- Prior art keywords
- damping
- magnet
- damping block
- protection device
- pole protection
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- 238000013016 damping Methods 0.000 title claims abstract description 55
- 230000008878 coupling Effects 0.000 title claims abstract description 8
- 238000010168 coupling process Methods 0.000 title claims abstract description 8
- 238000005859 coupling reaction Methods 0.000 title claims abstract description 8
- 239000000872 buffer Substances 0.000 claims abstract description 30
- 239000006096 absorbing agent Substances 0.000 claims abstract description 16
- 230000035939 shock Effects 0.000 claims abstract description 16
- 230000000903 blocking effect Effects 0.000 claims description 3
- 230000005284 excitation Effects 0.000 abstract description 4
- 235000017166 Bambusa arundinacea Nutrition 0.000 abstract 2
- 235000017491 Bambusa tulda Nutrition 0.000 abstract 2
- 241001330002 Bambuseae Species 0.000 abstract 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 abstract 2
- 239000011425 bamboo Substances 0.000 abstract 2
- 206010016256 fatigue Diseases 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000010248 power generation Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/70—Wind energy
- Y02E10/72—Wind turbines with rotation axis in wind direction
Landscapes
- Vibration Dampers (AREA)
Abstract
The application discloses a wind-driven generator tower section of thick bamboo prevents excitation technical field's an electromagnetic damping coupling magnetic pole protection device, including the bumper shock absorber, fixed setting just to the damping piece in tower section of thick bamboo is inside for stop damping piece collision magnet. When the damping block swings towards the magnet, the damper blocks the damping block from colliding towards the magnet, so that the damping block is prevented from directly colliding with the magnet, and even if the damping block swings greatly to generate direct collision, the damper can buffer in advance, so that collision force is reduced, and the magnet is effectively protected from being damaged and broken.
Description
Technical Field
The utility model relates to the technical field of excitation prevention of wind driven generator tower barrels, in particular to an electromagnetic damping coupling magnetic pole protection device.
Background
The wind driven generator tower has the characteristics of super high wind load and high wind load, and the height of the wind driven generator tower can reach hundreds of meters or even 140 meters. When the fan rotates, part of wind load can be converted into electric energy, and meanwhile, the tower barrel can not generate obvious excitation phenomenon due to the long-period regular rotation of the blades. However, when the condition of sufficient power grid load, maintenance and the like is met, the wind power generation is inevitably stopped within a certain time. When the wind power generation device is stopped, the fan does not rotate, the upper part of the tower barrel has obvious vortex-induced vibration phenomenon under the action of wind load, the vibration mode is generally second-order resonance, namely the vibration of the fan part is not obvious, and the tower barrel obviously swings. Because of the wind power installation environment, vortex-induced vibration phenomenon is continuous in most of the time of shutdown, and even obvious shaking of the tower drum of the fan can be observed sometimes, so that the fatigue life of the tower drum manufacturing material is greatly influenced, the risk of fatigue failure exists seriously, and the tower drum can be even caused to topple over under extreme conditions, so that serious property loss and safety accidents are caused.
In some areas with high wind speed, damping blocks are hung on some high-rise buildings to increase damping, so that resonance phenomenon of the buildings is avoided. However, the outer wall of the fan tower is smooth, the outer protrusion which is suitable for suspending the damping block is not available, and the problem that the damping block swings too much to strike the tower is also considered, so that the technical problem exists when the direct suspension damping block is used for preventing the fan tower from vibration excitation.
In order to solve the above problems, the applicant provides the following solutions: the pulley and the rigging are arranged in the tower barrel, the damping block is hung after the rigging bypasses the pulley, and the damping block is in a lifting state, so that vibration damping of the tower barrel body is increased, resonance phenomenon is effectively prevented, and accordingly risks of fatigue failure, dumping and the like of the tower barrel are avoided. And the magnet close to the damping block is also arranged, and when the damping block swings, the magnetic induction lines are cut to generate magnetic flux change, and the electromagnetic induction forms eddy current, so that the kinetic energy of the damping block is consumed, and the vibration is conveniently and rapidly eliminated. However, when the swing amplitude of the damping block is too large, the damping block can collide with the magnet, and the magnet is easy to damage when repeatedly collided or the impact force is large, so that the concentration of the magnetic field is affected.
Disclosure of Invention
The utility model aims to provide an electromagnetic damping coupling magnetic pole protection device so as to solve the problem that a magnet is damaged by collision of damping blocks in the prior art.
In order to solve the problems, the utility model provides the following technical scheme: an electromagnetic damping coupling magnetic pole protection device comprises a shock absorber which is fixedly arranged in a tower cylinder and is opposite to a damping block and used for blocking the damping block from colliding with a magnet.
The utility model has the working principle and beneficial effects that: when the damping block swings towards the magnet, the damper blocks the damping block from colliding towards the magnet, so that the damping block is prevented from directly colliding with the magnet, and even if the damping block swings greatly to generate direct collision, the damper can buffer in advance, so that collision force is reduced, and the magnet is effectively protected from being damaged and broken.
Further, the number of the shock absorbers is multiple, and the shock absorbers are vertically arranged in parallel or transversely arranged in parallel.
Further, the bumper shock absorber includes hydraulic buffer rod, and the one end fixedly connected with mounting panel of hydraulic buffer rod, the other end fixedly connected with baffle of hydraulic buffer rod, hydraulic buffer rod cup joint the spring that is located between mounting panel and the baffle.
The hydraulic buffer rod has simple structure and good stability; the hydraulic buffer rod is used for absorbing collision energy and avoiding repeated vibration of the spring; the spring shares collision force with the hydraulic buffer rod jointly, has large buffering capacity and long service life, and is convenient to reset.
Further, one end of the spring is fixedly connected with the mounting plate, and the other end of the spring is fixedly connected with the baffle plate.
The two ends of the spring are respectively fixedly connected with the baffle plate and the mounting plate. The hydraulic buffer rod is convenient to protect, and the spring provides pulling force when the hydraulic buffer rod stretches out for a long time, so that the hydraulic buffer rod is prevented from being excessively stretched.
Further, the baffle is provided with an omni-wheel. The omnidirectional wheel comprises a wheel hub and a driven wheel, wherein more than 3 or 3 wheel hub teeth are uniformly arranged on the outer circumference of the wheel hub, a driven wheel is arranged between every two wheel hub teeth, and the radial direction of the driven wheel is perpendicular to the tangential direction of the outer circumference of the wheel hub.
When the damping block swings towards the magnet, the damping block firstly contacts with the omnidirectional wheel when the swing amplitude is large, so that most of direct collision between the damping block and the magnet is avoided, and even if the swing amplitude is large, the direct collision is generated, the damping block can buffer in advance, so that the collision force is reduced, and the magnetic pole is prevented from being damaged. In addition, the driven wheel of the omnidirectional wheel can enable the damping block to deviate after being contacted, so that the contact time is increased, and the impact force is reduced. Through hydraulic buffer rod for the device has flexibility, and the omnidirectional wheel receives the backward back of striking and lets, avoids rigid collision, improves life.
Further, the device also comprises an elastic shaft, one end of the elastic shaft is connected with the omni-wheel in a rotating way, and the other end of the elastic shaft is fixedly connected with the baffle.
The elastic shaft buffers the transverse component force of the impact force and enables the omni-directional wheel to return to the initial position, so that the shock absorber is protected, and the service life is prolonged.
Further, the elastic shaft further comprises a flange, the flange is connected with the baffle through bolts, and the other end of the elastic shaft is fixedly sleeved with the flange. The flange passes through bolted connection with the bumper shock absorber, and the structure can be dismantled, makes things convenient for the dismouting, and the installation is stable, and device intensity is big.
Further, an elastic layer is arranged on the surface of the omnidirectional wheel. Elastic layer rubber, etc., is convenient for buffering and reduces collision impact force.
Drawings
Fig. 1 is a front view of an electromagnetic damping coupled pole protection device according to the present utility model.
Detailed Description
The following is a further detailed description of the embodiments:
reference numerals in the drawings of the specification include: bar magnet 1, omni wheel 2, bumper shock absorber 3, mounting panel 4, elastic axis 5, flange 6, hydraulic buffer rod 7, spring 8, baffle 9.
In the following description, the terms "left", "right", "upper", "lower" and the like are all based on the illustrated orientations, and in practice, the implementation of the scheme is not affected if the relative positions of the corresponding structures are kept unchanged by making a change in the same direction based on the orientations.
Examples: an electromagnetic damping coupling magnetic pole protection device is shown in fig. 1, and comprises a mounting plate 4, a baffle plate 9 and 3 shock absorbers 3, wherein the 3 shock absorbers 3 are opposite to damping blocks in a tower cylinder and are used for blocking the damping blocks from colliding with a bar magnet 1. The mounting plate 4 is fixedly arranged on the wall of the tower barrel.
The bumper shock absorber 3 includes hydraulic buffer rod 7,3 hydraulic buffer rod 7's right-hand member all with mounting panel 4 fixed connection, 3 hydraulic buffer rod 7's left end all with baffle 9 fixed connection. The hydraulic buffer rod 7 is sleeved with a spring 8 between the mounting plate 4 and the baffle 9. The 3 baffles 9 are respectively and fixedly connected with a flange 6, the flange 6 is fixedly connected with an elastic shaft 5, and the elastic shaft 5 is rotatably connected with an omni-wheel 2 (the omni-wheel 2 is a common mechanical component in the field).
When the damping block swings towards the bar magnet 1, the damping block firstly contacts with the omnidirectional wheel 2 when the swing amplitude is large, so that most of direct collision between the damping block and the bar magnet 1 is avoided, and even if the swing amplitude is large, the direct collision is generated, the damping block can buffer in advance, so that the collision force is reduced, and the damage to the bar magnet 1 is avoided. In addition, the omni wheel 2 can offset the damping blocks after contacting, thereby increasing the contact time and reducing the impact force.
The elastic shaft 5 buffers the transverse component of the impact force and returns the omni-wheel 2 to the initial position, thereby protecting the damper 3 and prolonging the service life. The both ends of spring 8 respectively with baffle 9, mounting panel 4 fixed connection, be convenient for protect hydraulic buffer pole 7, spring 8 provides the pulling force when hydraulic buffer pole 7 stretches out longer, prevents that hydraulic buffer pole 7 from excessively elongating, through hydraulic buffer pole 7 for the device has flexibility, and omnidirectional wheel 2 receives the backward back of striking and lets, avoids rigid collision, improves life.
It will be apparent to those skilled in the art that various modifications and improvements can be made without departing from the scope of the utility model, and the utility model is not limited to the details of construction and the utility of the patent. The protection scope of the present application shall be subject to the content of the claims, and the description of the specific embodiments and the like in the specification can be used for explaining the content of the claims.
Claims (5)
1. Electromagnetic damping coupling magnetic pole protection device, its characterized in that: the damping device comprises a shock absorber, a damping block and a magnet, wherein the shock absorber is fixedly arranged in a tower cylinder and is opposite to the damping block, and is used for blocking the damping block from colliding with the magnet; the number of the shock absorbers is multiple, and the shock absorbers are vertically arranged in parallel or transversely arranged in parallel; the shock absorber comprises a hydraulic buffer rod, one end fixedly connected with mounting panel of the hydraulic buffer rod, the other end fixedly connected with baffle of the hydraulic buffer rod, the spring between mounting panel and baffle has been cup jointed to the hydraulic buffer rod.
2. The electromagnetic damping coupled pole protection device of claim 1, wherein: the baffle is provided with an omni-wheel.
3. The electromagnetic damping coupled pole protection device of claim 2, wherein: the device also comprises an elastic shaft, one end of the elastic shaft is connected with the omni-wheel rotation, and the other end of the elastic shaft is fixedly connected with the baffle.
4. The electromagnetic damping coupled pole protection device of claim 3, wherein: the elastic shaft is fixedly sleeved with the flange.
5. The electromagnetic damping coupled pole protection device of claim 4, wherein: the surface of the omnidirectional wheel is provided with an elastic layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223148933.4U CN220378780U (en) | 2022-11-25 | 2022-11-25 | Electromagnetic damping coupling magnetic pole protection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223148933.4U CN220378780U (en) | 2022-11-25 | 2022-11-25 | Electromagnetic damping coupling magnetic pole protection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220378780U true CN220378780U (en) | 2024-01-23 |
Family
ID=89571615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223148933.4U Active CN220378780U (en) | 2022-11-25 | 2022-11-25 | Electromagnetic damping coupling magnetic pole protection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220378780U (en) |
-
2022
- 2022-11-25 CN CN202223148933.4U patent/CN220378780U/en active Active
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