Wind driven generator

Abstract

The utility model discloses a wind driven generator in the technical field of wind power generation, which comprises a tower column, a shock-absorbing seat is mounted at the bottom end of the tower column and comprises a plurality of shock-absorbing sub-seats, one side of each shock-absorbing sub-seat is provided with an opening, the opening side of each shock-absorbing sub-seat faces the tower column, the plurality of shock-absorbing sub-seats are annularly arranged around the central axis of the tower column, and accommodating cavities are formed in the shock-absorbing sub-seats. The containing cavity communicates with the opening, the containing cavity is filled with a damping layer, the damping layer makes contact with the peripheral side of the tower column, and the damping device further comprises a fixing assembly used for fixing the multiple damping sub-seats. The wind driven generator solves the technical problems that in the prior art, the horizontal damping effect is poor, and dismounting difficulty is large, and the wind driven generator is good in horizontal damping effect and easy to dismount.

Description

TECHNICAL FIELD

[0001] The utility model relates to wind power generation technical field especially wind driven generator. BACKGROUND

[0002] The wind driven generator mainly includes airfoil blade, hub, generator, tower, base and other components, the existing airfoil blade is generally installed at high place, and the wind power at high place is larger, therefore the lateral wind power that the airfoil blade needs to bear is also larger, the lateral wind power easily makes the wind driven generator produce vibration in horizontal direction, and the wind driven generator bears the lateral wind power for a long time, easily causes the damage of equipment due to vibration. In addition, in the process of its operation and power generation, the wind driven generator also produces resonance effect with external environment, leading to sharp increase of amplitude. Therefore, the wind driven generator usually sets damping device at the base to reduce the damage of vibration to equipment and reduce the security risk brought by resonance as far as possible.

[0003] The utility model discloses a kind of wind driven generator shock-absorbing base of Chinese utility model patent No.CN210087900U, it is with to relieve the pressure of support column to base by setting mutually repelling upper magnetic block and lower magnetic block, to buffer vertical direction vibration, further relieve repulsion between upper magnetic block and lower magnetic block by the elastic force of upper shock-absorbing spring and lower shock-absorbing spring, further play the role of shock-absorbing compression resistance, although horizontal shock-absorbing spring is also set, the elastic force of horizontal shock-absorbing spring is used to reduce the vibration between vertical plate and shell, but horizontal shock-absorbing spring does not directly act support column, vibration and friction will be generated between support column and fixed seat, the vibration of support column in horizontal direction is not solved, since wind driven generator bears lateral wind power for a long time, horizontal direction vibration is extremely easy to damage equipment. In addition, magnetic block, spring and other structures are also installed and used together, there is also the problem that dismounting replacement is extremely inconvenient, increase maintenance difficulty. UTILITY MODEL CONTENTS

[0004] To solve the technical problems of poor horizontal damping effect and great dismounting difficulty in the prior art, the utility model provides a wind driven generator with good horizontal damping effect and simple dismounting.

[0005] The utility model solves the technical scheme that it adopts:

[0006] Wind driven generator, including tower column, shock-absorbing seat is installed at the bottom end of tower column, shock-absorbing seat includes multiple shock-absorbing subseats, shock-absorbing subseat has opening on one side, and the side of the opening of shock-absorbing subseat faces tower column, and multiple shock-absorbing subseats are annularly arranged around the central axis of tower column, and shock-absorbing subseat has accommodating cavity, and accommodating cavity is communicated with opening, and shock-absorbing layer is filled in accommodating cavity, and shock-absorbing layer is in contact with the outer circumferential side of tower column, and further include fixing assembly, for the fixing of multiple shock-absorbing subseats.

[0007] Further, the two adjacent shock-absorbing sub-bases are in contact, and the plurality of shock-absorbing sub-bases enclose a circular truncated cone, the outer diameter of the bottom of the circular truncated cone is greater than the outer diameter of the top of the circular truncated cone.

[0008] Further, the shock-absorbing layer comprises a first shock-absorbing layer, a second shock-absorbing layer and shock-absorbing springs, the accommodating cavity has an open end, the open end of the accommodating cavity is directed to the inside of the accommodating cavity, the first shock-absorbing layer, the shock-absorbing springs and the second shock-absorbing layer are sequentially arranged in the inside of the accommodating cavity, the first shock-absorbing layer and the second shock-absorbing layer are connected through the shock-absorbing springs, the number of the shock-absorbing springs is a plurality, the shock-absorbing springs are horizontally arranged and are arranged along the vertical line, and the first shock-absorbing layer is in contact with the outer circumferential side of the tower column.

[0009] Further, the shock-absorbing layer further comprises a pore layer, the pore layer is located on the side, away from the shock-absorbing springs, of the second shock-absorbing layer, the pore layer is in contact with the second shock-absorbing layer, and a limiting piece is arranged on the inner wall of the accommodating cavity and is in contact with the side, away from the second shock-absorbing layer, of the pore layer.

[0010] Further, the pore layer and the remaining unfilled area of the accommodating cavity form a cavity.

[0011] Further, a plurality of strip plates are arranged on the side wall, opposite to the pore layer, of the cavity, the surface of the strip plate, facing the pore layer, is an arc surface, and the strip plates are arranged along the vertical line.

[0012] Further, the fixing assembly comprises a first hoop piece and a second hoop piece, a limiting groove is arranged on the top surface of the shock-absorbing sub-base, the bottom of the first hoop piece and the bottom of the second hoop piece are inserted into the limiting groove, the first hoop piece and the second hoop piece enclose a mounting hole, the tower column is arranged in the mounting hole, the first hoop piece and the second hoop piece are connected through bolts, the bolts are tightened to drive the first hoop piece and the second hoop piece to be close to each other, and then the plurality of shock-absorbing sub-bases are clamped.

[0013] Further, the bottom surface of the shock-absorbing sub-base is provided with a positioning nail.

[0014] Further, the side, away from the opening, of the shock-absorbing sub-base is hingedly connected with a movable door.

[0015] The beneficial effects of the utility model are as follows:

[0016] This invention features multiple vibration-damping sub-seats, each with an opening on one side facing the tower. These sub-seats are arranged in a ring around the central axis of the tower. Each sub-seat contains a cavity connected to the opening, filled with a vibration-damping layer that contacts the outer periphery of the tower. A fixing assembly secures the sub-seats to the outer edge of the wind turbine tower. This structure effectively absorbs and disperses horizontal vibration energy from the tower, reducing the impact of lateral wind on the wind turbine. It also further supports and stabilizes the tower, improving the safety and stability of the equipment. Furthermore, the vibration-damping layer, filled into the cavity through the opening, facilitates disassembly and maintenance. The absence of magnetic blocks as vibration-damping material significantly extends the lifespan of the layer. Additionally, dividing the damping seat into multiple sub-seats facilitates transportation and the disassembly and installation of the vibration-damping layer. Attached Figure Description

[0017] Figure 1 This is a structural schematic diagram of the wind turbine generator of this utility model;

[0018] Figure 2 yes Figure 1 The front view;

[0019] Figure 3 yes Figure 1 A sectional view;

[0020] Figure 4 yes Figure 1 Top view;

[0021] The markings in the diagram are as follows: 1-Tower column, 2-Blade, 3-Shock absorber base, 4-Accommodation cavity, 5-Shock absorber layer, 51-First shock absorber layer, 52-Second shock absorber layer, 53-Shock absorber spring, 54-Porous layer, 6-Limiting component, 7-Strip plate, 8-First hoop, 9-Second hoop, 10-Limiting groove, 11-Positioning pin, 12-Moving door. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the present invention will be further described below with reference to the accompanying drawings.

[0023] First, it should be stated that the technical solutions of the embodiments of this application are clearly and completely described. The described embodiments are only some of the embodiments of this application, and not a limitation of this utility model. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0024] In the description of the utility model, it is necessary to understand that the orientation or position relation indicated by the terms "first", "second", "upper", "lower", "left", "right", "inner", "outer", "axial" or "radial" in the terms is based on the orientation or position relation shown in the drawings, and is only for the convenience of describing the utility model, and is not intended to indicate or imply that the indicated device or element must have a particular orientation structure and operation, and therefore cannot be understood as a limitation on the utility model.

[0025] It should be noted that, in the utility model, unless otherwise explicitly specified and limited, the terms "connection", "fixing" and the like should be broadly understood, for example, "fixing" can be fixed connection, can also be detachable connection, or can be integrated: can be mechanical connection, can also be electrical connection; can be direct connection, can also be indirect connection through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements, unless otherwise explicitly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0026] Referring to Figures 1 to 4 , the utility model provides a wind driven generator.

[0027] As Figures 1 to 3 shown, the embodiment provides a wind driven generator, including tower column 1, the tower column 1 top end is equipped with blade 2, the tower column 1 bottom end is equipped with shock-absorbing seat, and the shock-absorbing seat includes multiple shock-absorbing sub-seats 3, one side of the shock-absorbing sub-seat 3 has an opening, the opening side of the shock-absorbing sub-seat 3 faces the tower column 1, multiple shock-absorbing sub-seats 3 are annularly arranged around the central axis of the tower column 1, the shock-absorbing sub-seat 3 has a containing cavity 4, the containing cavity 4 is communicated with the opening, the containing cavity 4 is filled with a shock-absorbing layer 5, the shock-absorbing layer 5 is in contact with the outer circumferential side of the tower column 1, further including a fixing assembly for fixing multiple shock-absorbing sub-seats 3.

[0028] As Figure 1 and Figure 4 shown, for multiple shock-absorbing sub-seats 3 annularly arranged around the central axis of the tower column 1, adjacent two shock-absorbing sub-seats 3 can be in contact or not in contact, preferably, adjacent two shock-absorbing sub-seats 3 are in contact, and multiple shock-absorbing sub-seats 3 enclose a circular truncated cone, and the outer diameter of the bottom of the circular truncated cone is greater than the outer diameter of the top of the circular truncated cone. For whether multiple shock-absorbing sub-seats 3 enclose a circular truncated cone, here is not particularly limited, preferably, a circular truncated cone is formed, as long as a good supporting and fixing effect on the tower column 1 can be formed.

[0029] As Figure 1 and Figure 3As shown, for the fixed assembly, a plurality of damping sub-bases 3 can be connected and fixed using connecting plates and screws, or a fixed frame can be provided to fix the damping sub-bases 3 in the fixed frame for relative fixation between the plurality of damping sub-bases 3. Preferably, in the embodiment, the fixed assembly includes a first hoop member 8 and a second hoop member 9, a limiting groove 10 is formed in the top surface of the damping sub-base 3, the bottom of the first hoop member 8 and the second hoop member 9 is inserted into the limiting groove 10, the first hoop member 8 and the second hoop member 9 form an installation hole in combination, the tower column 1 is arranged in the installation hole, and the first hoop member 8 and the second hoop member 9 are connected by bolts. Tightening the bolts drives the first hoop member 8 and the second hoop member 9 to approach each other, and then the plurality of damping sub-bases 3 are clamped.

[0030] As for how the damping layer 5 is fixed in the accommodating cavity 4, it can be embeddedly fixed, or a limiting ring or limiting block can be arranged in the accommodating cavity 4 for fixing the damping layer 5.

[0031] In this way, the damping seat is divided into a plurality of damping sub-bases 3, the damping layer 5 can be directly filled into the damping sub-bases 3 through the opening, and the plurality of damping sub-bases 3 are fixed by the fixed assembly. On the one hand, it is convenient for transportation, and on the other hand, it is convenient for dismounting and mounting the damping layer 5. This structure not only can effectively absorb and disperse the vibration energy of the tower column 1 in the horizontal direction, reduce the influence of the lateral wind force on the wind turbine, but also further supports and fixes the tower column 1, improves the safety and stability of the equipment operation.

[0032] As shown in the embodiment of the present scheme, Figure 3 As shown in the embodiment of the present scheme, the damping layer 5 includes a first damping layer 51, a second damping layer 52 and a damping spring 53, the accommodating cavity 4 has an opening end, the opening end of the accommodating cavity 4 is directed to the inside of the accommodating cavity 4 from the opening side of the damping sub-base 3, the first damping layer 51, the damping spring 53 and the second damping layer 52 are sequentially arranged in the inside of the accommodating cavity 4, the first damping layer 51 and the second damping layer 52 are connected through the damping spring 53, the number of the damping spring 53 is multiple, the damping spring 53 is horizontally arranged and spaced along the vertical line, and the first damping layer 51 is in contact with the outer circumferential side of the tower column 1.

[0033] The first damping layer 51 and the second damping layer 52 can be made of materials with good damping effect, such as rubber material and sponge material. The first damping layer 51 is in full contact with the tower column 1, which increases the damping area and improves the damping effect of the tower column 1 in the horizontal direction.

[0034] As shown in the embodiment of the present scheme, Figure 3 As shown in the embodiment of the present scheme, the damping layer 5 further includes a pore layer 54, the pore layer 54 is located on the side of the second damping layer 52 away from the damping spring 53, the pore layer 54 is in contact with the second damping layer 52, and the inside wall of the accommodating cavity 4 is provided with a limiting piece 6, the limiting piece 6 is in contact with the side of the pore layer 54 away from the second damping layer 52.

[0035] For the limiting component 6, the limiting component 6 can be a limiting ring or a limiting block.

[0036] For the porous layer 54, porous materials such as foam ceramics can be used. These materials have a large number of microporous structures inside. The microporous structures can absorb and disperse the impact and vibration energy perpendicular to the material plane like a sponge. When external vibration or impact forces act on the foam ceramics, these energies will be absorbed by the microporous structures and dispersed throughout the material, thereby reducing the peak value of vibration or impact and achieving a shock absorption effect.

[0037] like Figure 3 As shown, in this embodiment of the scheme, the porous layer 54 and the remaining unfilled area of ​​the receiving cavity 4 form a cavity. The cavity can be used to disperse and reflect sound waves, and at the same time, the cavity also has a certain buffering effect.

[0038] like Figure 3 As shown in this embodiment, multiple strips 7 are provided on the sidewall of the cavity opposite to the porous layer 54. The surface of the strips 7 facing the porous layer 54 is curved, and the strips 7 are arranged at intervals along a vertical line. The curved surface of the strips 7 can reflect the sound waves generated during vibration, so that they are consumed when they re-enter the porous layer 54, thereby reducing the noise caused by vibration.

[0039] like Figure 2 As shown in the embodiment of this solution, a positioning nail 11 is provided on the bottom surface of the shock-absorbing sub-base 3. The presence of the positioning nail 11 further strengthens the fixation of the shock-absorbing sub-base 3. By inserting the positioning nail 11 into the soil layer, the shock-absorbing sub-base 3 is stably positioned on the ground.

[0040] like Figure 2 As shown in this embodiment, a movable door 12 is hinged to the side of the shock-absorbing sub-base 3 facing away from the opening. The movable door 12 facilitates the replacement of the shock-absorbing layer 5 inside the shock-absorbing sub-base 3 by the staff.

Claims

1. A wind turbine generator, comprising a tower (1), wherein a shock-absorbing seat is installed at the bottom end of the tower (1), characterized in that: The damping seat includes multiple damping sub-seats (3), each damping sub-seat (3) has an opening on one side, with the opening side of the damping sub-seat (3) facing the tower column (1). The multiple damping sub-seats (3) are arranged in a ring around the central axis of the tower column (1). Each damping sub-seat (3) has a receiving cavity (4) inside, which is connected to the opening. The receiving cavity (4) is filled with a damping layer (5), which is in contact with the outer periphery of the tower column (1). It also includes a fixing component for fixing the multiple damping sub-seats (3).

2. The wind turbine generator as described in claim 1, characterized in that: Two adjacent damping seats (3) are in contact with each other, and multiple damping seats (3) together form a frustum, the outer diameter of the bottom of the frustum is larger than the outer diameter of the top of the frustum.

3. The wind turbine generator as described in claim 1, characterized in that: The damping layer (5) includes a first damping layer (51), a second damping layer (52), and damping springs (53). It extends from the opening side of the damping seat (3) towards the inside of the receiving cavity (4). The first damping layer (51), the damping springs (53), and the second damping layer (52) are arranged sequentially inside the receiving cavity (4). The first damping layer (51) and the second damping layer (52) are connected by damping springs (53). There are multiple damping springs (53). The damping springs (53) are arranged horizontally and spaced along a vertical line. The first damping layer (51) is in contact with the outer periphery of the tower column (1).

4. The wind turbine generator as described in claim 3, characterized in that: The damping layer (5) also includes a porous layer (54), which is located on the side of the second damping layer (52) away from the damping spring (53). The porous layer (54) is in contact with the second damping layer (52). A limiting member (6) is provided on the inner wall of the receiving cavity (4), and the limiting member (6) is in contact with the side of the porous layer (54) away from the second damping layer (52).

5. The wind turbine generator as described in claim 4, characterized in that: The pore layer (54) and the remaining unfilled area of ​​the cavity (4) form a cavity.

6. The wind turbine generator as described in claim 5, characterized in that: Multiple strips (7) are provided on the sidewall of the cavity opposite to the porous layer (54). The surface of the strips (7) facing the porous layer (54) is curved, and the strips (7) are arranged at intervals along a vertical line.

7. The wind turbine generator as described in claim 1, characterized in that: The fixing assembly includes a first hoop (8) and a second hoop (9). A limiting groove (10) is opened on the top surface of the damping sub-seat (3). The bottoms of the first hoop (8) and the second hoop (9) are inserted into the limiting groove (10). The first hoop (8) and the second hoop (9) together form a mounting hole. The tower column (1) passes through the mounting hole. The first hoop (8) and the second hoop (9) are connected by bolts. Tightening the bolts drives the first hoop (8) and the second hoop (9) to move closer to each other, thereby clamping multiple damping sub-seats (3).

8. The wind turbine generator as described in claim 1, characterized in that: The bottom surface of the shock-absorbing sub-seat (3) is provided with positioning nails (11).

9. The wind turbine generator as described in claim 1, characterized in that: The shock-absorbing sub-seat (3) has a hinged door (12) on the side opposite to the opening.

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