CN213063835U

CN213063835U - Anti-cracking wind driven generator tower

Info

Publication number: CN213063835U
Application number: CN202021504314.2U
Authority: CN
Inventors: 李萍; 其他发明人请求不公开姓名
Original assignee: Gansu Guokai New Energy Equipment Co ltd
Current assignee: Gansu Guokai New Energy Equipment Co ltd
Priority date: 2020-07-27
Filing date: 2020-07-27
Publication date: 2021-04-27
Anticipated expiration: 2030-07-27

Abstract

The utility model provides a cracking-proof wind driven generator tower frame, which comprises a concrete tower cylinder, a steel cylinder and a transition flange; the upper end of the concrete tower barrel is provided with an upper connecting plate, and the surface of the concrete tower barrel is uniformly provided with buffer seams; the upper end of the transition flange is provided with an upper flange plate, and the upper flange plate is connected with a lower connecting plate bolt at the lower end of the steel cylinder; the lower end of the transition flange is provided with a lower flange plate, and the lower flange plate is connected with an upper connecting plate bolt at the top end of the concrete tower barrel; two sets of semicircle billet are installed to the inside nested of buffer joint, and just two sets of semicircle billet outsides all are equipped with the semicircle hoop, and two sets of semicircle hoops pass through bolted connection. The utility model discloses in, through the setting of flange upper end weather shield, can play the effect that keeps out the wind and rain for the bolt in the outside, slow down the corrosion speed of bolt, still evenly be equipped with the buffering seam through concrete tower section of thick bamboo surface, and the inside semicircle billet that is equipped with of buffering seam, can alleviate the tension that the concrete surface produced, prevent that concrete tower section of thick bamboo from ftracturing.

Description

Anti-cracking wind driven generator tower

Technical Field

The utility model belongs to the technical field of the wind-powered electricity generation pylon, more specifically say, in particular to prevent aerogenerator pylon of fracture.

Background

Wind power belongs to renewable energy and clean energy, the wind power is widely distributed in mountainous areas in the middle and western parts of China at present, the power generation principle is simpler, a wind wheel rotates under the action of wind power, the kinetic energy of the wind is converted into mechanical energy of a wind wheel shaft, a generator generates power under the driving of a branch wheel shaft, a wind power tower cylinder is a tower rod of wind power generation, the wind power tower cylinder mainly plays a supporting role in a wind power generator set, the vibration of the generator set is absorbed at the same time, the tower cylinder generates forced vibration under the action of external dynamic load, when the excitation frequency of the external load is close to the natural frequency of the structure, the structure generates resonance, the tower cylinder is damaged, cracks are generated, and.

Based on the aforesaid, the tower section of thick bamboo is wind power generation's support and basis, the length of the continuous extension wind wheel of efficiency in order to improve wind power generation now, and the height of corresponding tower section of thick bamboo also constantly improves, and current tower section of thick bamboo can produce under the effect of strong wind and sway, can produce vibrations in the operation of wind wheel rotation and device moreover, causes the threat for the stability of tower section of thick bamboo, can produce the problem of tower section of thick bamboo surface fracture.

In view of the above, research and improvement are made on the existing structure and defects, and a wind turbine tower capable of preventing cracking is provided, so as to achieve the purpose of higher practical value.

Disclosure of Invention

In order to solve the technical problem, the utility model provides a prevent aerogenerator pylon of fracture to solve current wind power pylon and produce the problem that vibrations caused a tower section of thick bamboo fracture in the function.

The utility model discloses prevent purpose and efficiency of aerogenerator pylon of fracture is reached by following specific technological means: an anti-cracking wind driven generator tower comprises a concrete tower barrel, a steel barrel and a transition flange; the upper end of the concrete tower barrel is provided with an upper connecting plate, and the surface of the concrete tower barrel is uniformly provided with buffer seams; the lower end of the steel cylinder is provided with a lower connecting plate; the upper end of the transition flange is provided with an upper flange plate, and the upper flange plate is connected with a lower connecting plate bolt at the lower end of the steel cylinder; the lower end of the transition flange is provided with a lower flange plate, and the lower flange plate is connected with an upper connecting plate bolt at the top end of the concrete tower barrel; two groups of rain baffles are arranged at the upper end of the transition flange in an aligned mode and are connected through bolts; six groups of reinforcing ribs are annularly arranged in the steel cylinder, two groups of fixing plates are arranged at the upper end and the lower end of each reinforcing rib, and the fixing plates are fixedly connected with the steel cylinder; two sets of semicircle billet are installed to the inside nested of buffer joint, and just two sets of semicircle billet outsides all are equipped with the semicircle hoop, and two sets of semicircle hoops pass through bolted connection.

Furthermore, the outer ring of transition flange is equipped with six group's reinforcing plates, and the reinforcing plate is the slope structure, and reinforcing plate upper end and last ring flange fixed connection, lower extreme and lower ring flange fixed connection.

Furthermore, the transition flange is of a trapezoidal structure, two groups of threaded holes are annularly formed in the surfaces of the upper flange plate and the lower flange plate, the threaded holes in the outer ends of the upper flange plate and the lower flange plate are through holes, and the diameter of the upper flange plate is smaller than that of the lower flange plate.

Furthermore, semicircle hoop internal surface is equipped with the recess, and the width of recess is the same with the width of buffering seam, and the internal diameter of semicircle hoop is the same with the external diameter of concrete tower section of thick bamboo.

Furthermore, two groups of annular threaded holes are uniformly formed in the surfaces of the upper connecting plate and the lower connecting plate, the upper connecting plate and the lower flange plate are identical in structure, and the lower connecting plate and the upper flange plate are identical in structure.

Furthermore, the top end of the interior of the rain baffle is provided with two groups of supporting plates in an aligning manner, and the lower ends of the supporting plates are attached to the upper flange plate.

Compared with the prior art, the utility model discloses following beneficial effect has:

in the utility model, the lower end of the transition flange with the trapezoidal structure can be connected with a concrete tower cylinder with a larger cylinder diameter through the transition flange with the upper ring and the surface of the lower flange plate are both provided with two groups of threaded holes in an annular manner, the upper end of the transition flange can be connected with a steel cylinder with a smaller cylinder diameter, the cylinder diameter is gradually reduced to ensure that the lower end has large weight and the upper end has light weight, thereby increasing the stability of the device, in the connecting process of the upper connecting plate at the top end of the lower flange plate and the concrete tower cylinder, the inner side and the outer side of the concrete tower cylinder are both connected with the transition flange through bolts, ensuring that the stress on the connecting part is uniform, prolonging the service life of the device, and the bolts at the outer side can play the role of shielding wind and rain through the arrangement of the rain shield plate at the upper end of the transition flange, reducing the corrosion speed of the bolts, and the top ends inside the two, can strengthen the stability of weather shield, prevent the downward landing of weather shield, still evenly be equipped with the buffering seam through concrete tower section of thick bamboo surface, and the inside semicircle billet that is equipped with of buffering seam can alleviate the tension that the concrete surface produced, prevents that a concrete tower section of thick bamboo from ftractureing under the low temperature condition, and the compressive capacity of a steel section of thick bamboo has been increased through the setting of the inside strengthening rib of a steel section of thick bamboo simultaneously.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the flange connection structure of the present invention.

Fig. 3 is a schematic sectional structural view of the flange of the present invention.

Fig. 4 is a schematic view of the buffer seam structure of the present invention.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4 according to the present invention.

Fig. 6 is a schematic sectional structure diagram of the steel cylinder of the present invention.

Fig. 7 is a schematic view of the connection device of the present invention.

Fig. 8 is a schematic view of a steel cylinder of the present invention.

In the drawings, the corresponding relationship between the component names and the reference numbers is as follows:

1. a concrete tower tube; 101. buffering the seam; 102. an upper connecting plate; 2. a steel cylinder; 201. a lower connecting plate; 3. a rain shield; 301. a support plate; 4. a transition flange; 401. an upper flange plate; 402. a lower flange plate; 5. a reinforcing plate; 6. a fixing plate; 601. reinforcing ribs; 7. a semicircular iron hoop; 701. semi-circle wood blocks.

Detailed Description

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

In the description of the present invention, "a plurality" means two or more unless otherwise specified; the terms "upper", "lower", "left", "right", "inner", "outer", "front", "rear", "head", "tail", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Example (b):

as shown in figures 1 to 8:

the utility model provides a cracking-proof wind driven generator tower, which comprises a concrete tower barrel 1, a steel barrel 2 and a transition flange 4; an upper connecting plate 102 is arranged at the upper end of the concrete tower tube 1, and buffer seams 101 are uniformly arranged on the surface of the concrete tower tube 1; the lower end of the steel cylinder 2 is provided with a lower connecting plate 201; an upper flange plate 401 is arranged at the upper end of the transition flange 4, and the upper flange plate 401 is in bolted connection with a lower connecting plate 201 at the lower end of the steel cylinder 2; the lower end of the transition flange 4 is provided with a lower flange plate 402, and the lower flange plate 402 is in bolted connection with the upper connecting plate 102 at the top end of the concrete tower barrel 1; two groups of rain baffles 3 are arranged at the upper end of the transition flange 4 in an aligned mode, and the two groups of rain baffles 3 are connected through bolts; six groups of reinforcing ribs 601 are annularly arranged in the steel cylinder 2, two groups of fixing plates 6 are arranged at the upper end and the lower end of each reinforcing rib 601, and the fixing plates 6 are fixedly connected with the steel cylinder 2; two sets of semicircle billet 701 are installed to the inside nested of buffer seam 101, and just two sets of semicircle billet 701 outsides all are equipped with semicircle hoop 7, and two sets of semicircle hoops 7 pass through bolted connection.

Wherein, the outside annular of flange 4 is equipped with six reinforcing plates 5 of group, and reinforcing plate 5 is the slope structure, and 5 upper ends of reinforcing plate and last ring flange 401 fixed connection, lower extreme and lower ring flange 402 fixed connection, the setting of reinforcing plate 5 can increase flange 4's compressive capacity, and 5 ring symmetry settings of reinforcing plate can make the atress more even.

Wherein, transition flange 4 is trapezium structure, and the equal ring shape in upper flange plate 401 and lower flange plate 402 surface is equipped with two sets of screw holes, and outer end screw hole is the through hole, and the diameter ratio of upper flange plate 401 is little than the diameter of lower flange plate 402, and the great concrete tower section of thick bamboo 1 of section of thick bamboo footpath can be connected to 4 lower extremes of the transition flange of trapezium structure, and the less steel cylinder 2 of section of thick bamboo footpath can be connected to 4 upper ends of transition flange, and the section of thick bamboo footpath reduces gradually and makes the weight light above the weight of lower extreme greatly, has increased the stability.

Wherein, 7 internal surfaces of semicircle hoop are equipped with the recess, the width of recess is the same with the width of buffering seam 101, and the internal diameter of semicircle hoop 7 is the same with concrete tower section of thick bamboo 1's external diameter, wind power generation tower mainly is in the mountain area of chinese and western portion of china, the temperature difference change is big round and night, and concrete structure receives the temperature difference change easily and produces the fracture, set up buffering seam 101 on concrete tower section of thick bamboo 1 surface, and buffering seam 101 inside is equipped with two sets of semicircle billet 701, can reduce 1 surface tension of concrete tower section of thick bamboo, prevent the fracture, and semicircle billet 701 outside is equipped with semicircle hoop 7, can play the guard action to semicircle billet 701, slow down the speed of rotting of semicircle billet 701.

Wherein, upper junction plate 102 also evenly is equipped with two sets of annular screw holes with lower connecting plate 201 surface, and upper junction plate 102 is the same with lower flange 402 structure, and lower connecting plate 201 is the same with upper flange 401's structure for transition flange 4 respectively with the in-process that concrete tower section of thick bamboo 1 and steel cylinder 2 are connected, the inside and outside both sides of concrete tower section of thick bamboo 1 all have the bolt to be connected with transition flange 4, make the atress even, prolonged the life of device.

Wherein, 3 inside tops of weather shield are counterpointed and are equipped with two sets of backup pads 301, and backup pad 301 lower extreme and the laminating of last ring flange 401, and steel cylinder 2 is the drum shape, and weather shield 3 is receiving the easy lapse of external force, and setting up of backup pad 301 lower extreme and the laminating of last ring flange 401 can prevent that weather shield 3 from gliding under the action of gravity.

The specific use mode and function of the embodiment are as follows:

in the utility model, the transition flange 4 is in a ladder-shaped structure, the surfaces of the upper flange plate 401 and the lower flange plate 402 are both provided with two groups of threaded holes in a ring shape, the threaded holes at the outer end are through holes, the lower end of the transition flange 4 in the ladder-shaped structure can be connected with a concrete tower tube 1 with a larger tube diameter, the upper end of the transition flange 4 can be connected with a steel tube 2 with a smaller tube diameter, the tube diameter is gradually reduced, so that the lower end has a larger weight and the upper end has a light weight, the stability of the device is increased, meanwhile, in the connection process of the upper connecting plate 102 at the top end of the lower flange plate 402 and the concrete tower tube 1, the inner side and the outer side of the concrete tower tube 1 are fixedly connected through bolts, so that the stress is uniform, the service life of the device is prolonged, and the upper end of the transition flange 4 is provided with the rain shield plate 3, so that the outer, and backup pad 301 lower extreme and the laminating of last ring flange 401 can strengthen weather shield 3's stability, prevent that weather shield 3 from landing downwards, 1 surface of concrete tower section of thick bamboo evenly is equipped with buffering seam 101, and the inside semicircle billet 701 that is equipped with of buffering seam 101 can alleviate the tension that the concrete surface produced, prevents that concrete tower section of thick bamboo 1 from ftracturing under the low temperature condition, and the setting through 2 inside strengthening ribs 601 of steel cylinder has increased 2 compressive capacity of steel cylinder simultaneously.

The embodiments of the present invention have been presented for purposes of illustration and description, and are not intended to be exhaustive or limited to the invention in the form disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiment was chosen and described in order to best explain the principles of the invention and the practical application, and to enable others of ordinary skill in the art to understand the invention for various embodiments with various modifications as are suited to the particular use contemplated.

Claims

1. A prevent aerogenerator pylon that ftractures which characterized in that: comprises a concrete tower cylinder (1), a steel cylinder (2) and a transition flange (4); an upper connecting plate (102) is arranged at the upper end of the concrete tower tube (1), and buffer seams (101) are uniformly arranged on the surface of the concrete tower tube (1); the lower end of the steel cylinder (2) is provided with a lower connecting plate (201); an upper flange plate (401) is arranged at the upper end of the transition flange (4), and the upper flange plate (401) is in bolted connection with a lower connecting plate (201) at the lower end of the steel cylinder (2); the lower end of the transition flange (4) is provided with a lower flange plate (402), and the lower flange plate (402) is in bolt connection with an upper connecting plate (102) at the top end of the concrete tower barrel (1); two groups of rain baffles (3) are arranged at the upper end of the transition flange (4) in an aligned mode, and the two groups of rain baffles (3) are connected through bolts; six groups of reinforcing ribs (601) are annularly arranged in the steel cylinder (2), two groups of fixing plates (6) are arranged at the upper end and the lower end of each reinforcing rib (601), and the fixing plates (6) are fixedly connected with the steel cylinder (2); two sets of semicircle billet (701) are installed to inside nested the installing of buffer seam (101), and just two sets of semicircle billet (701) outside all is equipped with semicircle hoop (7), and two sets of semicircle hoops (7) pass through bolted connection.

2. The crack resistant wind turbine tower of claim 1, wherein: the outer ring shape of transition flange (4) is equipped with six reinforcing plates (5), and reinforcing plate (5) are the slope structure, and reinforcing plate (5) upper end and last ring flange (401) fixed connection, lower extreme and lower ring flange (402) fixed connection.

3. The crack resistant wind turbine tower of claim 1, wherein: the transition flange (4) is of a trapezoidal structure, two groups of threaded holes are annularly formed in the surfaces of the upper flange plate (401) and the lower flange plate (402), the threaded holes in the outer ends are through holes, and the diameter of the upper flange plate (401) is smaller than that of the lower flange plate (402).

4. The crack resistant wind turbine tower of claim 1, wherein: the inner surface of the semicircular iron hoop (7) is provided with a groove, the width of the groove is the same as that of the buffer seam (101), and the inner diameter of the semicircular iron hoop (7) is the same as the outer diameter of the concrete tower tube (1).

5. The crack resistant wind turbine tower of claim 1, wherein: two groups of annular threaded holes are uniformly formed in the surfaces of the upper connecting plate (102) and the lower connecting plate (201), the upper connecting plate (102) and the lower flange plate (402) are identical in structure, and the lower connecting plate (201) and the upper flange plate (401) are identical in structure.

6. The crack resistant wind turbine tower of claim 1, wherein: the top of the interior of the rain baffle (3) is aligned with two groups of supporting plates (301), and the lower ends of the supporting plates (301) are attached to the upper flange (401).