Supporting base for wind power generator

Abstract

The utility model relates to the technical field of support seat for wind driven generator, and disclose a support seat for wind driven generator, including base and wind driven generator support pole, the upper surface fixed mounting of base has the support seat, the inside installation of support seat has wind driven generator support pole, its characterized in that: the upper surface of base installs four groups of support mechanism, and the support end of four groups support mechanism all and the outer surface of wind driven generator support pole abut. The utility model four groups of support mechanism that annular array distribution and inside damping buffer subassembly cooperate, constitute a all -round dynamic stabilization system, when wind driven generator support pole is affected by wind of different directions, the support mechanism of annular arrangement can respond simultaneously, through the buffer effect and the energy dissipation of damper bar of spring, effectively restrain the vibration and swing of support pole in each direction, and the operating stability of generator set under complex wind condition is greatly promoted.

Description

Technical Field

[0001] This utility model relates to the technical field of support bases for wind turbine generators, specifically a support base for wind turbine generators. Background Technology

[0002] Wind turbine support bases are core components that ensure the stable operation of the unit. Their design must take into account structural strength, adjustment flexibility, and environmental adaptability. Based on application scenarios and functional differences, existing support bases can be divided into two main categories: tower support bases and nacelle cover support bases, which provide fixing and adjustment functions for the main tower body and the top nacelle cover of the wind turbine, respectively.

[0003] Traditional support rod bases mostly use static support methods such as rigid welding or simple bolt fixing. Although such structures have a reasonable load-bearing capacity, they lack effective vibration reduction and damping mechanisms and have obvious defects: First, they are difficult to effectively dissipate vibration energy. Under continuous vibration, the support structure is prone to cracking due to fatigue, posing a safety hazard.

[0004] Secondly, the system's natural frequency is prone to resonance with external excitation, which not only amplifies the vibration amplitude and affects the generator's accuracy and lifespan, but also generates huge noise.

[0005] Furthermore, rigid connections lack the necessary buffering and adaptive adjustment capabilities when subjected to huge lateral forces, which may lead to local stress concentration and accelerate structural aging. Utility Model Content

[0006] The purpose of this utility model is to provide a support base for wind turbine generators, which solves the problem that traditional support bases mostly adopt rigid connections or simple vibration reduction structures, which have limited buffering effect and are difficult to effectively suppress broadband vibration and instantaneous impact. In particular, they are prone to resonance under variable load conditions, which leads to relatively poor support effect.

[0007] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0008] This utility model is a support base for a wind turbine, including a base and a wind turbine support rod. The support base is fixedly installed on the upper surface of the base, and the wind turbine support rod is installed inside the support base. Four sets of support mechanisms are installed on the upper surface of the base, and the support ends of the four sets of support mechanisms abut against the outer surface of the wind turbine support rod.

[0009] The support mechanism includes a mounting shell, a first support plate, a second support plate, and an abutment plate. The mounting shell is fixed to the base and is rotatably connected to one end of the first support plate. The other end of the first support plate is rotatably connected to one end of the second support plate. The abutment plate for abutting the support rod is fixedly installed on the other end of the second support plate.

[0010] The support mechanism further includes a damping buffer assembly, which includes a damping rod and a spring. The spring is sleeved on the outer surface of the damping rod. The damping buffer assembly is connected between the first support plate and the second support plate to provide buffering and damping force.

[0011] Furthermore, the specific structure of the damping buffer assembly is as follows: a first connecting shell is fixedly installed on one side of the first support plate, a connecting plate is rotatably connected inside the first connecting shell, a mounting plate is fixedly installed on one end of the connecting plate, a first fixing plate is fixedly installed on one side of the second support plate, a second connecting shell is rotatably connected to the outer surface of the first fixing plate, a second fixing plate is fixedly installed on one side of the second connecting shell, both ends of the damping rod are respectively fixedly installed on the mounting plate and the second fixing plate, and both ends of the spring are respectively fixedly connected to the outer surfaces of the mounting plate and the second fixing plate.

[0012] Furthermore, a number of reinforcing ribs are fixedly installed inside the support base, and the number of reinforcing ribs are distributed crosswise inside the support base.

[0013] Furthermore, the intersecting reinforcing ribs have a mesh-like structure.

[0014] Furthermore, the side of the abutment plate that contacts the outer surface of the wind turbine support rod is an arc-shaped surface, and its curvature matches the outer diameter of the support rod.

[0015] Furthermore, the four sets of support mechanisms are arranged in a circular array centered on the axis of the wind turbine support rod.

[0016] Furthermore, the rotational connection axis between the first connecting shell and the connecting plate, and the rotational connection axis between the first fixing plate and the second connecting shell, are both parallel to the rotational connection axes of the first support plate and the second support plate.

[0017] Furthermore, the mounting shell and the base are fixed together by welding.

[0018] This utility model has the following beneficial effects:

[0019] (1) The four sets of support mechanisms arranged in a ring array of this utility model work together with the internal damping buffer components to form a comprehensive dynamic stability system. When the wind turbine support rod is subjected to wind force in different directions, the ring-arranged support mechanism can respond simultaneously. Through the buffering effect of the spring and the energy dissipation of the damping rod, the vibration and sway of the support rod in various directions are effectively suppressed, and the operation stability of the generator set under complex wind conditions is greatly improved.

[0020] (2) The reinforcing ribs distributed in a cross-mesh pattern inside the support base of this utility model form an efficient force transmission frame. This design significantly enhances the bending and torsional deformation resistance of the support base body, ensuring that the stress generated by static load and dynamic vibration can be evenly distributed through the mesh structure, effectively preventing deformation of the support base structure and extending the service life of the overall support system.

[0021] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0022] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0024] Figure 2 This is a schematic diagram of the base, support seat, and support mechanism of this utility model;

[0025] Figure 3 This is a schematic diagram of the support mechanism structure of this utility model;

[0026] Figure 4 This utility model Figure 2 Enlarged schematic diagram of structure A in the image;

[0027] The attached diagram lists the components represented by each number as follows:

[0028] In the diagram: 1. Base; 2. Support seat; 3. Wind turbine support rod; 4. Support mechanism; 401. Mounting shell; 402. First support plate; 403. Second support plate; 404. Abutment plate; 405. First connecting shell; 406. Connecting plate; 407. Mounting plate; 408. First fixing plate; 409. Second connecting shell; 410. Second fixing plate; 411. Damping rod; 412. Spring. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Please see Figures 1-4 As shown, this utility model is a support base for a wind turbine, including a base 1 and a wind turbine support rod 3. A support base 2 is fixedly installed on the upper surface of the base 1, and the wind turbine support rod 3 is installed inside the support base 2. Four sets of support mechanisms 4 are installed on the upper surface of the base 1, and the support ends of the four sets of support mechanisms 4 abut against the outer surface of the wind turbine support rod 3.

[0031] The support mechanism 4 includes a mounting shell 401, a first support plate 402, a second support plate 403, and an abutment plate 404. The mounting shell 401 is fixed on the base 1 and is rotatably connected to one end of the first support plate 402. The other end of the first support plate 402 is rotatably connected to one end of the second support plate 403. The other end of the second support plate 403 is fixedly mounted with an abutment plate 404 for abutting the support rod.

[0032] Mounting shell 401: The mounting shell is a support structure welded or bolted to the base, usually made of steel plates and has sufficient strength and rigidity; it has a pivot hole inside for hinged installation of the first support plate, and the shell design must ensure that it does not deform or crack under long-term alternating loads.

[0033] First support plate 402: The first support plate is a strip-shaped metal plate, one end of which is rotatably connected to the mounting shell through a pin, and the other end is hinged to the second support plate; its dimensions and cross-sectional modulus have been mechanically calculated, and it can reliably transmit pressure and tension, and its surface can be treated with anti-corrosion to improve environmental adaptability.

[0034] Second support plate 403: The structure of the second support plate is similar to that of the first support plate. One end is hinged to the first support plate, and the other end is fixed to the abutment plate. Together, they form a telescopically adjustable support linkage system. By changing the included angle, the system can adapt to the slight sway of the support rod and transmit the force to the damping buffer assembly.

[0035] Abutting plate 404: The abutting plate is an arc-shaped pressure block that directly contacts the outer wall of the support rod. It is usually made of wear-resistant material or lined with a non-metallic wear-resistant pad. Its inner arc surface is processed into an arc shape that matches the outer diameter of the support rod in order to increase the contact area and reduce the contact stress.

[0036] The support mechanism 4 also includes a damping buffer assembly, which includes a damping rod 411 and a spring 412. The spring 412 is sleeved on the outer surface of the damping rod 411. The damping buffer assembly is connected between the first support plate 402 and the second support plate 403 to provide buffering and damping force.

[0037] The specific structure of the damping buffer assembly is as follows: a first connecting shell 405 is fixedly installed on one side of the first support plate 402, a connecting plate 406 is rotatably connected inside the first connecting shell 405, a mounting plate 407 is fixedly installed on one end of the connecting plate 406, a first fixing plate 408 is fixedly installed on one side of the second support plate 403, a second connecting shell 409 is rotatably connected to the outer surface of the first fixing plate 408, a second fixing plate 410 is fixedly installed on one side of the second connecting shell 409, the two ends of the damping rod 411 are respectively fixedly installed on the mounting plate 407 and the second fixing plate 410, and the two ends of the spring 412 are respectively fixedly connected to the outer surfaces of the mounting plate 407 and the second fixing plate 410.

[0038] First connecting shell 405: The first connecting shell is a small hinged support welded and fixed to the side of the first support plate. It is usually two perforated ear plates used to install the rotating shaft of the connecting plate. The position of its shaft hole must be parallel to the axis of the adjacent rotating pair so that the buffer assembly moves only in the predetermined direction.

[0039] Connecting plate 406: The connecting plate is a connecting rod that connects the first connecting shell and the mounting plate. One end is hinged to the first connecting shell through a pin, and the other end is fixed to the mounting plate. Its function is to transmit the movement of the first support plate to the mounting plate, thereby pushing the damping rod and spring to move.

[0040] Mounting plate 407: The mounting plate is a disc-shaped metal part, fixed to the end of the connecting plate, and serves as a mounting base for the damping rod and one end of the spring; its surface is evenly distributed with multiple screw holes or tie rod holes for fixing the end of the damping rod and the spring end cap, and has sufficient rigidity to avoid local deformation.

[0041] First fixed plate 408: The first fixed plate is a hinged support welded to the side of the second support plate, similar in structure to the first connecting shell, and is used to install the rotating shaft of the second connecting shell; its installation position needs to be coordinated with the hinge point of the first connecting shell to ensure the correct movement trajectory of the damping component.

[0042] Second connecting shell 409: The second connecting shell is a connecting piece that is hinged to the first fixed plate. It is usually a U-shaped clamp or a double-ear structure. One end is pinned to the first fixed plate, and the other end is connected to the damping rod through the second fixed plate. Its function is to transmit the movement of the second support plate to the other end of the damping rod.

[0043] Second fixing plate 410: The second fixing plate is a mounting plate that is fixedly connected to the second connecting shell. Its structure is similar to a mounting plate and it is used to fix the other end of the damping rod and the spring.

[0044] Damping rod 411: The damping rod is a hydraulic damper or a gas damper, with its two ends fixedly connected to the mounting plate and the second fixed plate, respectively; the inside is filled with damping medium, and when subjected to tension or compression, it generates a damping force that hinders the movement, converting mechanical vibration energy into heat energy dissipation, and is the main component for suppressing vibration.

[0045] Spring 412: The spring is a helical compression spring, which is sleeved on the outside of the damping rod and its two ends are respectively pressed against the mounting plate and the second fixing plate; its main function is to pre-tighten the support mechanism so that it always presses against the support rod, and absorb vibration energy when subjected to impact, so as to achieve vibration reduction and buffering in conjunction with the damping rod.

[0046] Several reinforcing ribs 201 are fixedly installed inside the support base 2, and the several reinforcing ribs 201 are distributed crosswise inside the support base 2;

[0047] The cross-distributed reinforcing ribs 201 have a mesh structure;

[0048] Reinforcing rib 201: The reinforcing rib is a steel strip welded between the inner wall panels of the support base, arranged in a cross pattern; its height and thickness have been structurally optimized to effectively improve the bending and torsional stiffness and local stability of the support base, and prevent instability or excessive deformation under complex loads.

[0049] The side of the abutment plate 404 that contacts the outer surface of the wind turbine support rod 3 is an arc-shaped surface, and its curvature matches the outer diameter of the support rod 3.

[0050] The four sets of support mechanisms 4 are arranged in a circular array with the axis of the wind turbine support rod 3 as the center.

[0051] The rotational connection axis between the first connecting shell 405 and the connecting plate 406, and the rotational connection axis between the first fixing plate 408 and the second connecting shell 409, are all parallel to the rotational connection axis of the first support plate 402 and the second support plate 403.

[0052] The mounting shell 401 and the base 1 are fixed together by welding.

[0053] Working principle: In use, the wind turbine support rod 3 is first vertically installed inside the support base 2. Its weight and static load are mainly transferred to the base 1 through the support base 2. The four sets of support mechanisms 4 arranged in a ring array have their abutment plates 404 tightly attached to the outer wall of the support rod 3 through the arc surface, forming the main lateral support. The lateral force of the support rod 3 is transferred to the mounting shell 401 and the base 1 through the second support plate 403 and the first support plate 402. The cross-shaped mesh distribution of reinforcing ribs 201 greatly enhances the structural rigidity and deformation resistance of the support base 2 body.

[0054] When the support rod 3 vibrates due to wind or generator operation, it will squeeze or loosen the surrounding abutment plate 404. This movement forces the angle between the second support plate 403 and the first support plate 402 to change, thereby driving the damping buffer assembly damping rod 411 and spring 412 connected between them to move. As an energy storage element, it directly bears and buffers the impact force from the support rod 3. When squeezed, the spring 412 is compressed, absorbing and storing vibration energy. When the impact force weakens, the spring 412 releases energy to help the mechanism reset, playing the main buffering role. The damping rod 411 and the spring 412 work together. During the compression or extension of the spring 412, the damping rod 411 generates a damping force opposite to the direction of movement, effectively suppressing the reciprocating motion of the spring 412, converting the absorbed vibration kinetic energy into heat energy for dissipation, thereby rapidly attenuating the vibration and preventing the support system from resonating or continuously shaking.

[0055] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A support base for a wind turbine generator, comprising a base (1) and a wind turbine generator support rod (3), wherein a support seat (2) is fixedly mounted on the upper surface of the base (1), and the wind turbine generator support rod (3) is installed inside the support seat (2), characterized in that: Four sets of support mechanisms (4) are installed on the upper surface of the base (1), and the support ends of the four sets of support mechanisms (4) abut against the outer surface of the wind turbine support rod (3). The support mechanism (4) includes a mounting shell (401), a first support plate (402), a second support plate (403), and an abutment plate (404). The mounting shell (401) is fixed on the base (1) and is rotatably connected to one end of the first support plate (402). The other end of the first support plate (402) is rotatably connected to one end of the second support plate (403). The other end of the second support plate (403) is fixedly mounted with the abutment plate (404) for abutting the support rod. The support mechanism (4) further includes a damping buffer assembly, which includes a damping rod (411) and a spring (412). The spring (412) is sleeved on the outer surface of the damping rod (411). The damping buffer assembly is connected between the first support plate (402) and the second support plate (403) to provide buffering and damping force.

2. The support base for a wind turbine generator according to claim 1, characterized in that: The specific structure of the damping buffer assembly is as follows: a first connecting shell (405) is fixedly installed on one side of the first support plate (402), a connecting plate (406) is rotatably connected inside the first connecting shell (405), a mounting plate (407) is fixedly installed on one end of the connecting plate (406), a first fixing plate (408) is fixedly installed on one side of the second support plate (403), a second connecting shell (409) is rotatably connected to the outer surface of the first fixing plate (408), a second fixing plate (410) is fixedly installed on one side of the second connecting shell (409), both ends of the damping rod (411) are fixedly installed on the mounting plate (407) and the second fixing plate (410) respectively, and both ends of the spring (412) are fixedly connected to the outer surfaces of the mounting plate (407) and the second fixing plate (410) respectively.

3. A support base for a wind turbine generator according to claim 1 or 2, characterized in that: The support base (2) has several reinforcing ribs (201) fixedly installed inside, and the several reinforcing ribs (201) are distributed crosswise inside the support base (2).

4. A support base for a wind turbine generator according to claim 3, characterized in that: The cross-distributed reinforcing ribs (201) have a mesh structure.

5. A support base for a wind turbine generator according to claim 1, characterized in that: The side of the abutment plate (404) that contacts the outer surface of the wind turbine support rod (3) is an arc-shaped surface, and its curvature matches the outer diameter of the support rod (3).

6. A support base for a wind turbine generator according to claim 1, characterized in that: The four sets of support mechanisms (4) are arranged in a ring array with the axis of the wind turbine support rod (3) as the center.

7. A support base for a wind turbine generator according to claim 2, characterized in that: The rotational connection axis between the first connecting shell (405) and the connecting plate (406), and the rotational connection axis between the first fixing plate (408) and the second connecting shell (409) are both parallel to the rotational connection axis of the first support plate (402) and the second support plate (403).

8. A support base for a wind turbine generator according to claim 1, characterized in that: The mounting shell (401) and the base (1) are fixed by welding.

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