CN117869203B - Multi-level energy consumption node and tower for wind power generation - Google Patents
Multi-level energy consumption node and tower for wind power generation Download PDFInfo
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- CN117869203B CN117869203B CN202410139992.XA CN202410139992A CN117869203B CN 117869203 B CN117869203 B CN 117869203B CN 202410139992 A CN202410139992 A CN 202410139992A CN 117869203 B CN117869203 B CN 117869203B
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- 238000005265 energy consumption Methods 0.000 title claims abstract description 121
- 238000010248 power generation Methods 0.000 title claims abstract description 18
- 230000000694 effects Effects 0.000 claims abstract description 9
- 230000021715 photosynthesis, light harvesting Effects 0.000 claims description 24
- 229910000831 Steel Inorganic materials 0.000 claims description 18
- 239000010959 steel Substances 0.000 claims description 18
- 230000000149 penetrating effect Effects 0.000 claims description 9
- 238000006073 displacement reaction Methods 0.000 claims description 3
- 239000012530 fluid Substances 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 239000002184 metal Substances 0.000 claims description 3
- 238000010008 shearing Methods 0.000 claims description 2
- 238000005299 abrasion Methods 0.000 abstract description 3
- 230000007547 defect Effects 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000033001 locomotion Effects 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000004913 activation Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 244000309464 bull Species 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
- F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03D—WIND MOTORS
- F03D80/00—Details, components or accessories not provided for in groups F03D1/00 - F03D17/00
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- 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
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- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Wind Motors (AREA)
Abstract
The application provides a multi-level energy consumption node and a tower for wind power generation, and belongs to the technical field of wind power generation. According to the application, the rotating rod is connected with the inclined web member, the energy consumption assembly is arranged on the rotating rod, vibration of the tower is converted into rotation of the rotating rod, and then kinetic energy of the rotating rod is converted into other energy through the energy consumption assembly for dissipation, so that the defect that vibration energy cannot be dissipated through rigid connection in the prior art is overcome, energy generated by vibration can be effectively dissipated, and the structure is prevented from being damaged under the action of external environmental load; when the three energy consumption components vibrate slightly, only the first energy consumption component is started, so that the use frequency of the second energy consumption component and the third energy consumption component can be reduced, the use abrasion is reduced, and the service life is prolonged; when the vibration is large, the three energy consumption components play the role of energy consumption together, so that the energy consumption effect can be ensured.
Description
Technical Field
The application belongs to the technical field of wind power generation, and particularly relates to a multi-level energy consumption node and a tower for wind power generation.
Background
Wind energy is a renewable energy source with abundant resources, cleanness and no pollution, wind power generation is the fastest growing energy source in the world in recent years, and the wind power generation industry is also an emerging industry with wide prospects.
The tower is taken as an important part of the wind generating set, besides supporting the weight of the wind turbine, the tower also bears the wind pressure of the blowing wind turbine and the tower and the dynamic load in the wind turbine, and the design level directly influences the working performance and the reliability of the wind turbine.
In the related art, CN103410670a discloses a truss type wind driven generator tower, the tower includes a truss type tower main body, the tower main body is formed by a plurality of upright posts, a plurality of layers of transverse web members and a plurality of inclined web members, the upright posts, the transverse web members and the inclined web members are directly connected in a rigid connection mode, under the load of the external environment, the tower is easy to vibrate, and the rigidly connected nodes cannot effectively dissipate energy to weaken vibration effect, so that the nodes are easy to break to cause collapse of the tower.
Therefore, it is necessary to provide a multi-level energy consumption node and tower for wind power generation to solve the above-mentioned problems in the prior art.
Disclosure of Invention
The application provides a multi-level energy consumption node and a tower for wind power generation, which are connected with an inclined web member through a rotating rod, wherein an energy consumption assembly is arranged on the rotating rod, vibration of the tower is converted into rotation of the rotating rod, and then kinetic energy of the rotating rod is converted into other energy through the energy consumption assembly for dissipation, so that the defect that vibration energy cannot be dissipated through rigid connection in the prior art is overcome, and energy generated by vibration can be effectively dissipated.
In order to solve the technical problems, the technical scheme of the application is as follows:
a multi-level energy consuming node for wind power generation, comprising:
the energy consumption boxes are arranged along a first direction, the other energy consumption box is arranged along a second direction, and the two energy consumption boxes are fixed through a connecting piece;
the two first sleeves are distributed along the third direction and fixed at the upper end and the lower end of the connecting piece and are used for connecting two adjacent upright posts in the tower along the third direction;
the energy dissipation boxes are arranged along the second direction, and the energy dissipation boxes are connected with the transverse web members in the tower along the second direction;
Each of the energy consuming boxes comprises:
A housing;
The rotating assembly comprises a pin shaft and a rotating rod, the pin shaft is fixed with the shell and extends along the thickness direction of the shell, the rotating rod is hinged with the pin shaft, and the tail end of the rotating rod penetrates through the shell to be exposed and is used for connecting an inclined web member in the tower;
The energy consumption assembly is connected with the rotating rod, external environment loads drive the slant web member moves and drives the rotating rod rotates, the energy consumption assembly is used for converting kinetic energy of the rotating rod into other energy to be dissipated, the energy consumption assembly comprises a first energy consumption assembly, a second energy consumption assembly and a third energy consumption assembly, the first energy consumption assembly, the second energy consumption assembly and the third energy consumption assembly are sequentially arranged at intervals from the head end of the rotating rod to the tail end, and the first energy consumption assembly, the second energy consumption assembly and the third energy consumption assembly are sequentially started to generate energy consumption along with the increase of the rotating angle of the rotating rod.
Preferably, the number of the rotating rods is two, the two rotating rods are arranged in a crossing manner, one of the rotating rods and the connecting position of the pin shaft is provided with a U-shaped arch for avoiding the other rotating rod, the tail ends of the two rotating rods are positioned at the upper side and the lower side of the second sleeve and are respectively used for connecting the two inclined web members which are inclined upwards and inclined downwards, and in an initial state, the axis of the rotating rod and the axis of the corresponding inclined web member are not in the same straight line.
Preferably, the shell comprises a top plate, a bottom plate and side plates, the bottom plate is parallel to the top plate at intervals, the side plates are connected with the top plate and the bottom plate, an accommodating space is formed by combining the top plate, the bottom plate and the side plates, the rotating assembly and the energy consumption assembly are accommodated in the accommodating space, the side plates are arc-shaped corresponding to the tail end of the rotating rod, an opening is formed in the side plates in a penetrating mode, the opening is communicated with the accommodating space and the outside, a sliding block is arranged at the tail end of each rotating rod, one end of each sliding block is hinged to the tail end of each rotating rod, and the other end of each sliding block penetrates through the opening to be hinged to the inclined web member.
Preferably, the sliding block comprises an inner sliding block, an outer sliding block and an elastic rod, wherein the inner sliding block is abutted against the inner side surface of the side plate, the outer sliding block is abutted against the outer side surface of the side plate, one end of the elastic rod is hinged with the inner sliding block, and the other end of the elastic rod penetrates through the opening to be hinged with the outer sliding block.
Preferably, one end of the first energy dissipation component is hinged to the tail end of the rotating rod, the other end of the first energy dissipation component is hinged to a pin, the pin is fixed to the shell, and the first energy dissipation component is a viscous damper and dissipates vibration energy through interaction of viscous fluid in the damper and a damper structural component.
Preferably, the second energy consumption component comprises a friction block and a first driving rod, the friction block is clamped between the top plate and the rotating rod, a first arc long hole is formed in the friction block in a penetrating mode, a first arc sliding hole is formed in the position, corresponding to the first driving rod, of the top plate, one end of the first driving rod is fixed to the rotating rod, the other end of the first driving rod penetrates through the rear limit of the first arc long hole and is located in the first arc sliding hole, the extension length of the first arc long hole is smaller than that of the first arc sliding hole, when the second energy consumption component is in use, the first driving rod is located at two ends of the first arc long hole, and relative displacement is generated between the friction block and the top plate through driving, so that friction energy consumption is formed.
Preferably, the first driving rod passes through the first arc sliding hole and is exposed out of the top plate, the tail end of the first arc sliding hole is provided with threads, a pre-tightening nut is arranged on the threads, the pre-tightening nut is used for applying pre-tightening force, and the clamping degree of the rotating rod and the top plate on the friction block is controlled, so that the effects of controlling the friction force and friction energy consumption are achieved.
Preferably, the third energy consumption assembly comprises a slotted steel plate and a second driving rod, the slotted steel plate is fixed with the top plate and keeps a gap with the rotating rod, a second arc long hole is formed in the slotted steel plate in a penetrating mode, a second arc sliding hole is formed in the position, corresponding to the second driving rod body, of the top plate, one end of the second driving rod is fixed with the rotating rod, the other end of the second driving rod penetrates through the rear limit of the second arc long hole and is located in the second arc sliding hole, the extension length of the second arc long hole is smaller than that of the second arc sliding hole, when the second energy consumption assembly is used, the second driving rod is located at two ends of the second arc long hole, one end of the slotted steel plate is fixed, and the other end of the slotted steel plate moves to cause shearing deformation of the slotted steel plate, so that metal energy consumption is formed.
Preferably, the circle center positions of the first arc long hole and the second arc long hole are positioned on the same point with the circle center position of the rotating path of the rotating rod, and the extension length of the first arc long hole is smaller than that of the second arc long hole.
The application also provides a tower for wind power generation, which comprises the vertical rods, the transverse web members, the inclined web members and the multi-level energy consumption nodes, wherein a plurality of the vertical rods, the transverse web members and the inclined web members are spliced through the multi-level energy consumption nodes to form a truss-type tower structure.
The application has the beneficial effects that:
(1) The rotating rod is connected with the inclined web member, the energy consumption component is arranged on the rotating rod, vibration of the tower is converted into rotation of the rotating rod, and then kinetic energy of the rotating rod is converted into other energy through the energy consumption component to be dissipated, so that the defect that vibration energy cannot be dissipated due to rigid connection in the prior art is overcome, energy generated by vibration can be effectively dissipated, the structure is effectively prevented from being damaged under the action of external environment load, and complex and changeable external environment load can be faced;
(2) The first energy consumption component, the second energy consumption component and the third energy consumption component have time sequence, only the first energy consumption component is started in small vibration, the first energy consumption component, the second energy consumption component and the third energy consumption component are sequentially started in large vibration, the use frequency of the second energy consumption component and the third energy consumption component can be reduced in small vibration, the use abrasion is reduced, and the service life is prolonged; when the vibration is large, the three energy consumption components play a role in energy consumption together, so that the energy consumption effect can be ensured;
(3) The whole structure is simple, the assembly is easy, and the method is applicable to practical construction scenes.
Drawings
FIG. 1 is a perspective view showing a multi-level energy consumption node for wind power generation according to embodiment 1;
FIG. 2 is a schematic diagram showing an exploded structure of the multi-level energy consuming node shown in FIG. 1;
FIG. 3 is a plan view of the energy consuming cartridge of FIG. 1 with the top plate removed;
FIG. 4 is a diagram showing the connection structure of the transmission assembly and the energy consuming assembly shown in FIG. 2;
FIG. 5 shows a schematic diagram of the mating structure of the transmission assembly, the energy consuming assembly and the housing;
FIG. 6 shows a schematic structural view of a tower for wind power generation provided in example 2;
fig. 7 is a diagram illustrating a usage state of the multi-level energy consumption node in fig. 1.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.
Example 1
Referring to fig. 1-5, the present embodiment provides a multi-level energy consumption node 100 for wind power generation, which includes an energy consumption box 10, a first sleeve 20 and a second sleeve 30.
The tower is formed by splicing the upright post 210, the transverse web member 220 and the oblique web member 230, the multi-level energy consumption node 100 is arranged at the joint position of two adjacent surfaces of the tower, and for the purpose of more clearly describing the content of the implementation direction, the extending direction of the transverse web member on one surface is defined as a first direction, the extending direction of the transverse web member on the other surface is defined as a second direction, and the extending direction of the upright post is defined as a third direction.
The number of the energy consumption boxes 10 is two, the two energy consumption boxes 10 are fixed through connecting pieces, one energy consumption box is arranged along a first direction, and the other energy consumption box is arranged along a second direction.
In this embodiment, the two energy consuming boxes 10 are fixed in the following manner: the two side edges of the energy consumption boxes 10 are mutually abutted, two clamping blocks 101 with right angles are respectively arranged at the inner sides of the abutting positions to serve as connecting pieces, two right-angle faces of the clamping blocks 101 are respectively fixed with the two energy consumption boxes 10, and then the fixation between the two energy consumption boxes 10 is achieved, the connection firmness can be improved in a clamping mode of the inner side and the outer side, and the integral strength of the structure is improved.
The two energy dissipation boxes 10 have the same structure, and do not need to be distinguished in the installation process, so that errors in the assembly process can be prevented. Each of the energy consuming boxes 10 comprises a housing 11, a rotating assembly 12 and an energy consuming assembly 13.
The housing 11 includes a top plate 111, a bottom plate 112, and a side plate 113, the bottom plate 112 is spaced parallel to the top plate 111, the side plate 113 connects the top plate 111 and the bottom plate 112, and the three are combined to form an accommodating space, and the rotating assembly 12 and the energy consumption assembly 13 are accommodated in the accommodating space.
The rotating assembly 12 comprises a pin shaft 121 and a rotating rod 122, the pin shaft 121 is fixed with the shell 11 and extends along the thickness direction of the shell 11, the rotating rod 122 is hinged with the pin shaft 121, and the tail end of the rotating rod 122 penetrates through the shell 11 to be exposed for connecting an inclined web member 230 in a tower.
Specifically, the number of the rotating rods 122 is two, the two rotating rods 122 are arranged in a crossing manner, a connection position of one rotating rod 122 and the pin shaft 121 is provided with a U-shaped arch for avoiding the other rotating rod 122, the tail ends of the two rotating rods 122 are located at the upper side and the lower side of the second sleeve 30, and the tail ends are respectively used for connecting the two inclined web members 230 which are inclined upwards and inclined downwards.
In the initial state, the axis of the rotating rod 122 and the axis of the corresponding diagonal web member 230 are not on the same straight line, so that a certain included angle exists between the rotating rod 122 and the corresponding diagonal web member 230, which can better perform the force transmission function and is more beneficial to the opening and rotation of the rotating rod 122 from the static state.
The side plate 113 is arc-shaped at a position corresponding to the end of the rotating rod 122, and an opening 1130 is arranged on the side plate in a penetrating manner, and the opening 1130 is communicated with the accommodating space and the outside. The end of the rotating rod 122 is provided with a sliding block 40, one end of the sliding block 40 is hinged to the end of the rotating rod 122, and the other end of the sliding block passes through the opening 1130 to be hinged to the inclined web member 230.
Specifically, the slider 40 includes an inner slider 41, an outer slider 42, and an elastic rod 43, where the inner slider 41 abuts against the inner side surface of the side plate 113, the outer slider 32 is disposed on the outer side surface of the side plate 113, one end of the elastic rod 43 is hinged to the inner slider 41, and the other end passes through the opening 1130 and is hinged to the outer slider 42. In the use, external environmental load acts on the pylon, can drive slant web 230 motion, and then drives slider 40 with bull stick 122 rotates, and in the rotation process, interior slider 41 with the interval between the outer slider 42 is invariable, can play direction and spacing effect, avoids slider 40 appears the offset in the rotation process.
The energy consumption component 13 is mounted on the rotating rod 122, the external environmental load drives the inclined web member 230 to move, the rotating rod 122 is driven to rotate, and the energy consumption component 13 is used for converting kinetic energy of the rotating rod 122 into other energy for dissipation.
The energy dissipation assembly 13 includes a first energy dissipation assembly 131, a second energy dissipation assembly 132, and a third energy dissipation assembly 133, where the first energy dissipation assembly 131, the second energy dissipation assembly 123, and the third energy dissipation assembly 133 are sequentially disposed at intervals from the head end to the tail end of the first rotating rod 122/the second rotating rod 123. The first energy consumption component 131, the second energy consumption component 132 and the third energy consumption component 133 are sequentially started to generate energy consumption along with the increase of the rotation angle of the rotating rod 122.
One end of the first energy consumption component 131 is hinged to the tail end of the rotating rod 122, and the other end of the first energy consumption component is hinged to a pin, and the pin is fixed to the shell 11. The first energy dissipation assembly 131 is of a telescopic structure, and when the rotating rod 122 rotates, the first energy dissipation assembly 131 correspondingly stretches or compresses to convert kinetic energy into other forms of energy for dissipation.
In particular, the first dissipative component 131 is a viscous damper that dissipates vibration energy by the interaction of viscous fluid (silicone grease based liquid) in the damper with the structural components of the damper.
The second energy consumption component 132 includes a friction block 1321 and a first driving rod 1322, the friction block 1321 is clamped between the top plate 111 and the rotating rod 122, a first arc long hole 1323 is formed in the friction block 1321 in a penetrating manner, a first arc sliding hole 1111 is formed in the top plate 111 corresponding to the first driving rod 1322, one end of the first driving rod 1322 is fixed to the first rod body 122/the second rod body 123, and the other end of the first driving rod 1322 passes through the rear limit of the first arc long hole 1323 and is located in the first arc sliding hole 1111.
The extension length of the first long arc hole 1323 is smaller than that of the first long arc hole 1111, so that the first driving rod 1322 can obtain a larger travel distance in the first long arc hole 1111.
When the rotating rod 122 rotates, the first driving rod 1322 is driven to rotate in the first arc-shaped long hole 1323, and when the rotation angle is smaller, the first driving rod 1322 only moves in the stroke of the first arc-shaped long hole 1323, the acting force cannot be transmitted to the friction block 1321, and the friction block 1321 keeps a static state; when the rotation angle is larger, the first driving rod 1322 moves to the two end positions of the first arc-shaped slot 1323, and then presses the friction block 1321 to drive the friction block 1321 to move synchronously until the first driving rod 1322 abuts against the two end positions of the first arc-shaped slide hole 1111. The friction block 1321 and the top plate 111 generate relative displacement, and energy is dissipated by friction.
Preferably, the first driving rod 1322 passes through the first arc sliding hole 1111 and is exposed out of the top plate 111, a thread is disposed at the end of the first arc sliding hole 1111, a pre-tightening nut is disposed on the thread, and the pre-tightening nut is used for applying a pre-tightening force, controlling the clamping degree of the rotating rod 122 and the top plate 111 on the friction block 1321, and further controlling the friction force between the friction block 1321 and the top plate 111.
The third energy consumption component 133 includes a slotted steel plate 1331 and a second driving rod 1332, the slotted steel plate 1331 is fixed with the top plate 111 and keeps a distance from the rotating rod 122, a second arc long hole 1333 is formed in the slotted steel plate 1331 in a penetrating mode, a second arc sliding hole 1112 is formed in the position, corresponding to the second driving rod 1332, of the top plate 111, one end of the second driving rod 1332 is fixed with the rotating rod 122, and the other end of the second driving rod 1332 penetrates through the rear limit of the second arc long hole 1333 and is located in the second arc sliding hole 1112.
The extension length of the second arc-shaped long hole 1333 is smaller than that of the second arc-shaped sliding hole 1112, so that the second driving rod 1332 can obtain a larger travel distance in the second arc-shaped sliding hole 1112.
When the rotating rod 122 rotates, the second driving rod 1332 is driven to rotate in the second arc-shaped long hole 1333, and when the rotation angle is smaller, the second driving rod 1332 only moves in the stroke of the second arc-shaped long hole 1333 and cannot transmit acting force to the slotted steel plate 1331; when the rotation angle is larger, the second driving rod 1332 moves to the two ends of the second arc-shaped long hole 1333, and then presses the slotted steel plate 1331 to deform, so that metal energy consumption is formed.
The first driving rod 1322 and the second driving rod 1332 are both fixed with the rotating rod 122, the movement states of the two driving rods are consistent, the center positions of the first arc-shaped long hole 1323 and the second arc-shaped long hole 1333 are located at the same point with the center position of the rotating path of the rotating rod 122, the extension length of the first arc-shaped long hole 1323 is smaller than that of the second arc-shaped long hole 1333, so that the time of the second driving rod 1332 abutting against the slotted steel plate 1331 is later than that of the first driving rod 122 abutting against the friction block 1321, and the time sequence is formed.
When the rotating rod 122 starts to rotate, the first energy dissipation component 131 can generate energy dissipation effect; due to the presence of the first oblong hole 1323, the activation of the second energy consuming component 132 has a certain lag time compared to the first energy consuming component 131; since the extension length of the first long arc hole 1323 is smaller than the extension length of the second long arc hole 1333, the third energy consuming assembly 133 is started for a certain delay time compared with the second energy consuming assembly 133. By the arrangement, the three energy consumption components can obtain better energy consumption time sequence, and the use frequency of the second energy consumption component 132 and the third energy consumption component 133 can be reduced, the use abrasion is reduced, and the service life is prolonged during small vibration; when the vibration is large, the three energy consumption components play the role of energy consumption together, so that the energy consumption effect can be ensured.
The first sleeve 20 is disposed along the third direction and is fixed to the energy consuming box 10. The number of the first sleeves 20 is two, and the first sleeves are distributed at the upper and lower ends of the fixed positions of the two energy dissipation boxes 10 and are used for connecting two adjacent upright posts 210 in the tower along the third direction.
The second sleeve 30 is fixed to the energy dissipation boxes 10, the second sleeve 30 is arranged in one-to-one correspondence with the energy dissipation boxes 10, one of the second sleeve 30 is fixed to the energy dissipation box 10 arranged along the first direction and used for connecting a transverse web member 220 arranged along the first direction in the tower, the other second sleeve 30 is fixed to the energy dissipation box 10 arranged along the second direction and used for connecting a transverse web member 220 arranged along the second direction in the tower, and specifically, the second sleeve 30 is fixed to the side plate 113 and located between the sliding blocks 40 at the tail ends of the two rotating rods 122.
Example 2
Referring to fig. 6-7 in combination, the present embodiment provides a tower 200 for wind power generation, which includes a vertical rod 210, a transverse web member 220, an oblique web member 230, and the multi-level energy consumption node 100 in embodiment 1, and a plurality of the vertical rod 210, the transverse web member 220, and the oblique web member 230 are spliced by the multi-level energy consumption node 100 to form a truss-like tower structure.
The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those having ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are to be protected by the present application.
Claims (9)
1. A multi-level energy consuming node for wind power generation, comprising:
the energy consumption boxes are arranged along a first direction, the other energy consumption box is arranged along a second direction, and the two energy consumption boxes are fixed through a connecting piece;
the two first sleeves are distributed along the third direction and fixed at the upper end and the lower end of the connecting piece and are used for connecting two adjacent upright posts in the tower along the third direction;
the energy dissipation boxes are arranged along the second direction, and the energy dissipation boxes are connected with the transverse web members in the tower along the second direction;
Each of the energy consuming boxes comprises:
A housing;
The rotating assembly comprises a pin shaft and a rotating rod, the pin shaft is fixed with the shell and extends along the thickness direction of the shell, the rotating rod is hinged with the pin shaft, and the tail end of the rotating rod penetrates through the shell to be exposed and is used for connecting an inclined web member in the tower;
The energy consumption assembly is connected with the rotating rod, an external environment load drives the inclined web member to move and drives the rotating rod to rotate, the energy consumption assembly is used for converting kinetic energy of the rotating rod into other energy to be dissipated, the energy consumption assembly comprises a first energy consumption assembly, a second energy consumption assembly and a third energy consumption assembly, the first energy consumption assembly, the second energy consumption assembly and the third energy consumption assembly are sequentially arranged at intervals from the head end of the rotating rod to the tail end direction, and the first energy consumption assembly, the second energy consumption assembly and the third energy consumption assembly are sequentially started along with the increase of the rotating angle of the rotating rod to generate energy consumption effects;
The number of the rotating rods is two, the two rotating rods are arranged in a crossing mode, the U-shaped arch avoiding the other rotating rod is arranged at the connecting position of one rotating rod and the pin shaft, the tail ends of the two rotating rods are located at the upper side and the lower side of the second sleeve and are respectively used for connecting the two inclined web members which are inclined upwards and inclined downwards, and in an initial state, the axis of the rotating rod and the axis of the corresponding inclined web member are not in the same straight line.
2. The multi-level energy consumption node according to claim 1, wherein the shell comprises a top plate, a bottom plate and side plates, the bottom plate is parallel to the top plate at intervals, the side plates are connected with the top plate and the bottom plate, the top plate, the bottom plate and the side plates are combined to form an accommodating space, the rotating assembly and the energy consumption assembly are accommodated in the accommodating space, the side plates are arc-shaped at the positions corresponding to the tail ends of the rotating rods, openings are formed in the side plates in a penetrating mode, the accommodating space is communicated with the outside, sliding blocks are arranged at the tail ends of each rotating rod, one end of each sliding block is hinged to the tail end of each rotating rod, and the other end of each sliding block penetrates through the openings to be hinged to the inclined web members.
3. The multi-level energy consuming node of claim 2, wherein the slider comprises an inner slider, an outer slider, and an elastic rod, the inner slider abuts against an inner side surface of the side plate, the outer slider abuts against an outer side surface of the side plate, one end of the elastic rod is hinged to the inner slider, and the other end of the elastic rod passes through the opening and is hinged to the outer slider.
4. The multi-level energy dissipating node of claim 2, wherein said first energy dissipating component is hinged at one end to the end of said rotating rod and at the other end to a pin, said pin being fixed to said housing, said first energy dissipating component being a viscous damper that dissipates vibration energy by interaction of viscous fluid in the damper with a structural damper component.
5. The multi-level energy consumption node according to claim 4, wherein the second energy consumption component comprises a friction block and a first driving rod, the friction block is clamped between the top plate and the rotating rod, a first arc long hole is formed in the friction block in a penetrating mode, a first arc sliding hole is formed in the position, corresponding to the first driving rod, of the top plate, one end of the first driving rod is fixed to the rotating rod, the other end of the first driving rod penetrates through the first arc long hole and is limited in the first arc sliding hole, the extension length of the first arc long hole is smaller than that of the first arc sliding hole, when the second energy consumption component is in operation, the first driving rod is located at two ends of the first arc long hole, and relative displacement is generated between the friction block and the top plate through driving, so that friction energy consumption is formed.
6. The multi-level energy consumption node according to claim 5, wherein the first driving rod passes through the first arc sliding hole and is exposed out of the top plate, the tail end of the first arc sliding hole is provided with threads, a pre-tightening nut is arranged on the threads, the pre-tightening nut is used for exerting pre-tightening force, and the clamping degree of the rotating rod and the top plate on the friction block is controlled so as to achieve the effects of controlling the friction force and the friction energy consumption.
7. The multi-level energy consumption node according to claim 5, wherein the third energy consumption component comprises a slotted steel plate and a second driving rod, the slotted steel plate is fixed with the top plate and keeps a distance from the rotating rod, a second arc long hole is formed in the slotted steel plate in a penetrating mode, a second arc sliding hole is formed in the position, corresponding to the second driving rod body, of the top plate, one end of the second driving rod is fixed with the rotating rod, the other end of the second driving rod penetrates through the second arc long hole and is limited in the second arc sliding hole, the extension length of the second arc long hole is smaller than that of the second arc sliding hole, when the second energy consumption component is effective, the second driving rod is located at two end positions of the second arc long hole, one end of the slotted steel plate is fixed, and the other end of the slotted steel plate moves to cause shearing deformation of the slotted steel plate to form metal energy consumption.
8. The multi-level energy consumption node according to claim 7, wherein the center positions of the first arc-shaped long hole and the second arc-shaped long hole are positioned at the same point as the center position of the rotating path of the rotating rod, and the extension length of the first arc-shaped long hole is smaller than that of the second arc-shaped long hole.
9. A tower for wind power generation, comprising a vertical rod, a transverse web member, an oblique web member and the multi-level energy consumption node according to any one of claims 1-8, wherein a plurality of the vertical rod, the transverse web member and the oblique web member are spliced to form a truss-like tower structure through the multi-level energy consumption node.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493924A (en) * | 2011-12-06 | 2012-06-13 | 三一电气有限责任公司 | Fan and tower tube thereof |
| CN116123245A (en) * | 2023-03-03 | 2023-05-16 | 湖南大学 | Displacement amplification type damping device with multistage limiting energy consumption and application thereof |
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| KR101240380B1 (en) * | 2010-04-30 | 2013-03-08 | 주식회사 에이브이티 | The friction damper for the earthquake-proof |
| CN117167201B (en) * | 2023-09-06 | 2024-06-18 | 重庆大学 | Hybrid wind power tower system |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102493924A (en) * | 2011-12-06 | 2012-06-13 | 三一电气有限责任公司 | Fan and tower tube thereof |
| CN116123245A (en) * | 2023-03-03 | 2023-05-16 | 湖南大学 | Displacement amplification type damping device with multistage limiting energy consumption and application thereof |
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