Patent Description:
A damper is a device that provides resistance to movement and consumes movement energy. The use of damping to absorb energy and reduce vibration has been used in aerospace, aviation, military, wind power and other industries for a long time.

In the technical field of wind power, the tower is a supporting structure of the wind turbine, and the structural safety and stability thereof are related to the safety performance of the wind turbine. With continuous increase of capacity of the wind turbine, the continuous increase of the height of the tower and the continuous decrease of the frequency of the tower makes the vibration problem of the tower more and more prominent. In order to ensure the safe and stable operation of the tower and the whole wind turbine, it is necessary to install the damper on the tower to suppress the vibration of the tower and ensure the safe operation of the wind turbine.

Nowadays, many devices have been developed for the vibration damping of the tower, and the technology of tuned mass damper is mature and reliable and is widely used in high buildings, bridges and other fields. In the towering structures such as the tower of the wind turbine, the mass block is mainly employed in the tuned mass damper as the main vibration damping body, during vibrating of the tower, the purpose of vibration reduction of the wind turbine can be achieved by the vibration inertial force of the mass block and its damping energy dissipation device. Although this kind of damper can achieve the effect of vibration reduction, it also has corresponding drawbacks, which are mainly manifested in that the frequency adjustment component and damping component are designed separately and independently of each other and are disposed in different positions of the damper. Thus, different interfaces are required between the above components and the environment (e.g., the tower) in which the damper is applied, so the structural design is complicated. Meanwhile, the frequency adjustment component, the damping component and other components are scattered in different positions, which is bad for maintenance.

Therefore, there is an urgent need for a novel damping integrated device, damper and wind turbine.

Document <CIT> relates to an adjustable length strut having a unique locking device, wherein an annular spring within a housing surrounds an actuator rod, an actuator member engages one end of the annular spring axially compressing it and causing radial bulging resulting in locking the rod in position relative to the housing.

Document <CIT> relates to a shock absorber, including a first spring disposed above the uppermost side of the piston in the cylinder to apply an elastic force to the piston in a moving direction of the piston, a second spring disposed at an end of the first spring distal to the piston, and a rubber member disposed between the first and second springs, wherein due to the rubber member and the first and second springs, a restoring force acts on the piston when the piston moves, and an impact force between the cylinder and the piston may be alleviated when the piston moves upward at its full stroke.

Document <CIT> relates to a suspension fork assembly, including an outer tube which is mounted via brackets to the steering tube of the bicycle frame, and an inner tube that telescopes within the outer tube, wherein a shock absorbing system preferably in the form of a cartridge is provided within the tubes, the inner surface of the outer tube and the outer surface of the inner tube each have a plurality of axially arranged opposing longitudinal flat sections, and a plurality of needle bearings are disposed between the tubes on these flat sections.

Document <CIT> relates to an electric generator structure, including a main structure, a frequency modulation vibrator, a power generation system, one or more power generation cabin and bottom stiffening rib, wherein the bottom stiffening ribs are disposed at the bottom of the main structure, the main structure is connected with a foundation, the power generation cabins are disposed at the upper part of the main structure, and the frequency modulation vibrator and the power generation system are disposed in the power generation cabins.

The embodiments of the present disclosure provide a damping integrated device, a damper, and a wind turbine. The damping integrated device can satisfy the requirements of both frequency adjustment and damping, and has a simple structure design and is easy to maintain.

In one aspect, according to an embodiment of the present disclosure, a damper is provided, including a damping body portion and a damping integrated device. The damping integrated device includes: a base body having a predetermined length and including an inner cavity extending along a lengthwise direction thereof; a frequency adjustment component disposed in the inner cavity, the frequency adjustment component including an elastic member and a connecting member, with one end of the elastic piece in the lengthwise direction being connected to the base body and the other end thereof being connected to the connecting member; a first connector extending into the inner cavity and at least partially protruding out of the base body in the lengthwise direction, the first connector being connected to the connecting member and being capable of moving relative to the base body so as to make the elastic member stretch or shrink in the lengthwise direction; and a damping component disposed in the inner cavity, the damping component being connected to the connecting member and at least partially abutting against an inner wall of the base body, and the damping portion being configured to absorb kinetic energy of the first connector. A portion of the first connector protruding out of the base body in the lengthwise direction is rotatably connected to the damping body portion, an end of the base body away from the first connector can be connected to a component to be damped; the elastic member includes two or more springs spaced apart and extending in the lengthwise direction respectively, one end of each of the two or more springs is connected to the base body and the other end thereof is connected to the connecting member, and at least one of the two or more springs is detachably connected to the base body and the connecting member, respectively; and the frequency adjustment component is configured to, when the component to be damped vibrates, adjust a frequency of the damper to match with a frequency of the component to be damped.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the base body includes a cylinder extending along the lengthwise direction and end caps respectively provided at both ends of the cylinder in the lengthwise direction, the end caps and the cylinder are enclosed together to form the inner cavity, and in a direction intersecting the lengthwise direction, a spacer cavity is formed between the cylinder and the frequency adjustment component, and the damping component is located in the spacer cavity.

According to any of the foregoing embodiments of one aspect of the present disclosure, the damping component includes a mounting member, a supporting member, and a magnet, one end of the mounting member in the lengthwise direction is connected to the connecting member, the magnet is disposed facing the cylinder and is connected to the mounting member, the supporting member is supported between the mounting member and the cylinder, such that an air gap is formed between the magnet and the cylinder; and the first connector is capable of driving the magnet to move relative to the base body via the connecting member and generating an induced eddy current in the base body.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the mounting member has a cylindrical structure and is disposed around the elastic member, the connecting member is shaped to match the mounting member and is connected to and closes one end of the mounting member in the lengthwise direction, and the magnet includes a plurality of magnet blocks; and at least part of the plurality of magnet blocks are spaced apart in the lengthwise direction, and/or, at least part of the plurality of magnet blocks are spaced apart along an outer annular surface of the mounting member.

According to any of the aforementioned embodiments of one aspect of the present disclosure, the supporting member includes two or more sliders, which are spaced apart and are fixedly connected to the mounting member, respectively; or, the supporting member includes two or more first rollers, which are spaced apart and are rotatably connected to the mounting member, respectively.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the cylinder is provided with a first opening which is in communication with the inner cavity, and the mounting member is provided with a second opening which is disposed opposite to the first opening.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the damping component includes a friction body connected to the connecting member, the friction body abuts against the cylinder, the first connector is capable of driving the friction body to move relative to the cylinder through the connecting member, such that the friction body is in friction fit with the cylinder; or, the damping component includes a bearing body with a closed cavity and a damping liquid disposed in the closed cavity, the bearing body is in a shape of an annular cylinder and is disposed around the elastic member, and the bearing body is connected to the connecting member and abuts against the cylinder, and the first connector is capable of driving the bearing body to move relative to the base body through the connecting member, such that the damping fluid reciprocates along the lengthwise direction.

According to any one of the foregoing embodiments of one aspect of the present disclosure, the damping integrated device further includes a non-return limiting component, the non-return limiting component is connected to one end of the base body in the lengthwise direction, and the non-return limiting component is configured to limit a maximum dimension of the first connector protruding out of the base body in the lengthwise direction.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the non-return limiting component includes an adjusting rod extending along the lengthwise direction and connected to the base body, the adjusting rod at least partially extends into the inner cavity, and a size of the adjusting rod extending into the inner cavity is adjustable, and the adjusting rod abuts against a surface of the connecting member away from the elastic part to limit a displacement amount of the connecting member along the lengthwise direction in the base body; or, the non-return limiting component includes a friction plate located in the inner cavity and connected on a side of the base body away from the elastic member in the lengthwise direction, and the friction plate be in friction fit with the connecting member to stop the connecting member.

According to any one of the aforementioned embodiments of an aspect of the present disclosure, the adjusting rod is an elastic rod, and the adjusting rod is capable of being deformed by force in the lengthwise direction.

According to any of the foregoing embodiments of one aspect of the present disclosure, a buffer pad capable of being deformed by force in the lengthwise direction is provided on a surface of the connecting member away from the elastic member, and the buffer pad is disposed facing the non-return limiting component.

According to any one of the aforementioned embodiments of one aspect of the present disclosure, the first connector is a rod member, the base body is provided with a through hole at a position where the base body is connected to the first connector, a second roller is provided on a side wall enclosing the through hole, and the base body is in rolling fit with the first connector through the second roller; and/or, the damping integrated device further includes a second connector, which is disposed opposite to the first connector in the lengthwise direction, and the second connector is connected to an end of the base body away from the first connector.

According to an embodiment of another aspect of the present disclosure, the damping body portion includes a swing arm and a first mass block connected to the swing arm, and the portion of the first connector protruding out of the base body is hinged with the first mass block; or, the damping body portion includes a base, an arc-shaped slide rail supported on the base, and a second mass block disposed on the arc-shaped slide rail and slidably connected to the arc-shaped slide rail, the portion of the first connector protruding out of the base body is hinged with the second mass block, and an end of the base body away from the first connector is hinged with the base.

In yet another aspect, according to an embodiment of the present disclosure, a wind turbine is provided, including the damper as described above.

The damping integrated device provided according to the embodiments of the present disclosure includes the base body, the frequency adjustment component, the first connector, and the damping component. The frequency adjustment component includes an elastic member and a connecting member disposed in the inner cavity of the base body, the elastic member is respectively connected with the base body and the connecting member, and the connecting member is connected to the first connector. The damping component is also located in the inner cavity of the base body, and is connected to the connecting member and abuts against the inner wall of the base body. When the damping integrated device is in use, the main body portion of the damper may be connected with the component to be damped via the first connector and the end of the base body away from the first connector, respectively. Since both the elastic member and the damping component are connected to the first connector via the connecting member, and are connected to or press against the base body, respectively, the frequency of the damper can be adjusted by the frequency adjustment component to match the frequency of the component to be damped, and the kinetic energy of the first connector can be absorbed by the damping component, thereby achieving the effect of damping. Therefore, the damping integrated device has both frequency adjustment and damping characteristics. Since the frequency adjustment component and the damping component are integrated into the inner cavity of the base body, the damping integrated device has a compact overall structure and is easy to maintain while satisfying the requirements for frequency adjustment and damping. In addition, since both the damping component and the frequency adjustment component are connected with the external components through the first connector and the base body, the damping integrated device has few interfaces and strong versatility.

The features, advantages and technical effects of the exemplary embodiments of the present disclosure will be described below with reference to the accompanying drawings.

In the drawings, the same components are indicated by the same reference numerals. The drawings are not drawn to actual scale.

Features and exemplary embodiments of various aspects of the present disclosure are described in detail below. Numerous specific details are disclosed in the following detailed description to provide a thorough understanding of the present disclosure. However, it will be apparent to those skilled in the art that the present disclosure may be practiced without some of these specific details. The following description of embodiments is merely to provide a better understanding of the present disclosure by illustrating examples of the present disclosure. In the drawings and the following description, at least some well-known structures and techniques have not been shown in order to avoid unnecessarily obscuring the present disclosure. For purpose of clarity, the dimensions of some of the structures may be exaggerated. Furthermore, the features, structures or characteristics described below may be combined in any suitable manner in one or more embodiments.

The orientation words appearing in the following description refer to the directions shown in the figures, and are not intended to limit the specific structures of the damping integrated device, the damper and the wind turbine of the present disclosure. In the description of the present disclosure, it should also be noted that, unless otherwise expressly specified and limited, the terms "installed" and "connected" should be appreciated in a broad sense, for example, a connection may be a fixed connection, a detachable connection, or an integral connection; or may be a direct connection or an indirect connection. For those skilled in the art, the specific meanings of the above terms in the present disclosure shall be appreciated according to specific circumstances.

In order to better understand the present disclosure, a damping integrated device, a damper, and a wind turbine according to the embodiments of the present disclosure will be described in detail below with reference to <FIG>.

Referring to <FIG>, an embodiment of the present disclosure provides a wind turbine including a tower <NUM>, a nacelle <NUM>, a generator <NUM> and an impeller <NUM>. The nacelle <NUM> is disposed on the top of the tower <NUM>. The generator <NUM> is disposed on the nacelle <NUM>, may be located inside the nacelle <NUM>, or may be located outside the nacelle <NUM>. The impeller <NUM> includes a hub 5a and a plurality of blades 5b connected to the hub 5a, and the impeller <NUM> is connected to a rotor of the generator <NUM> through the hub 5a. When the wind acts on the blades 5b, the entire impeller <NUM> and the rotor of the generator <NUM> are driven to rotate, so as to convert wind energy into electrical energy.

In order to ensure the safe operation of the wind turbine, the wind turbine provided in the embodiment of the present disclosure further includes a damper <NUM>. By means of the damper <NUM>, it is possible to suppress the vibration of components such as the tower <NUM> of the wind turbine to ensure the safe operation of the wind turbine. In some optional embodiments, the damper <NUM> may be disposed inside the tower <NUM>.

Please continue to refer to <FIG>, an embodiment of the present disclosure further provides a damper <NUM>. The damper <NUM> includes a damping body portion <NUM> and a damping integrated device <NUM>, and the damping integrated device <NUM> is connected to the damping body portion <NUM>.

In some optional embodiments, the damping body <NUM> may include a swing arm 200a and a first mass block 200b connected to the swing arm 200a. Optionally, one end of the swing arm 200a may be connected to the first mass block 200b, and the other end thereof may be connected to the tower <NUM>. In some optional examples, the other end of the swing arm 200a may be connected to a structure (e.g., a tower platform) inside the tower <NUM>. Through the swing arm 200a, it is possible to obtain the kinetic energy generated by the vibration of the component to be damped (e.g., the tower <NUM>), thereby driving the first mass block 200b to swing.

Since the damper <NUM> is required to provide the requirements for frequency adjustment and damping to the component to be damped (e.g., the tower <NUM>), the traditional damper, the components that realize the frequency adjustment function, and the components that realize the damping function are independently provided and arranged at different positions of the damper. Since the tower <NUM> has a narrow inner space, there is a possibility that the structure of the traditional damper will introduce more interference. For example, the risk of interference between various components of the damper and between these components of the damper and the related accessories inside the tower (e.g., ladders), makes the structural design of the damper more complicated. Meanwhile, components such as frequency adjustment components and damping components are scattered in different positions, so respective interfaces are needed between these components and the environment (e.g., the tower <NUM>) in which the damper is applied, thereby causing many interfaces and inconvenient maintenance.

In view of above, an embodiment of the present disclosure further provides a damping integrated device <NUM>, which enable the damper <NUM> to have a simple structure design and be easy to maintain while enabling the damper <NUM> to satisfy the requirements for frequency adjustment and damping meanwhile. Meanwhile, the damping integrated device <NUM> may be produced and sold separately as an independent component. Apparently, in some examples, the damping integrated device <NUM> may also be used in the damper <NUM> of the above-mentioned embodiment and used be a component of the damper <NUM>.

Please refer to <FIG> together. The damping integrated device <NUM> provided in the embodiment of the present disclosure includes a base body <NUM>, a frequency adjustment component <NUM>, a first connector <NUM> and a damping component <NUM>. The base body <NUM> has a predetermined length and includes an inner cavity 10a extending along a lengthwise direction X thereof. The frequency adjustment component <NUM> is disposed in the inner cavity 10a. The frequency adjustment component <NUM> includes an elastic member <NUM> and a connecting member <NUM>. One end of the elastic member <NUM> in the lengthwise direction X is connected to the base body <NUM> and the other end thereof is connected to the connecting member <NUM>. The first connector <NUM> extends into the inner cavity 10a and at least partially protrudes out of the base body <NUM> in the lengthwise direction X. The first connector <NUM> is connected to the connecting member <NUM> and is capable of moving relative to the base body <NUM>, so as to make the elastic member <NUM> stretch or shrink in the lengthwise direction X. The damping component <NUM> is disposed in the inner cavity 10a. The damping component <NUM> is connected to the connecting member <NUM> and at least partially abuts against an inner wall of the base body <NUM>. The damping component <NUM> is configured to absorb the kinetic energy of the first connector <NUM>.

The damping integrated device <NUM> provided in the embodiment of the present disclosure includes the frequency adjustment component <NUM> and the damping component <NUM>, and integrates the frequency adjustment component <NUM> and the damping component <NUM> into the inner cavity 10a of the base body <NUM>. When the damping integrated device <NUM> is in use, a portion of the first connector <NUM> protruding out of the base body <NUM> may be rotatably connected with the damping body portion <NUM>, and an end of the base body <NUM> away from the first connector <NUM> may be connected to the component to be damped (e.g., the tower <NUM>) or other components of the damping body portion <NUM>. Since the elastic member <NUM> and the damping component <NUM> are both connected to the first connector <NUM> via the connecting member <NUM>, and are both connected to or abut against the base body <NUM>, when the component to be damped vibrates, the frequency of the damper <NUM> can be adjusted by the frequency adjustment component <NUM>, and the kinetic energy of the vibration transmitted to the first connector <NUM> can be absorbed by the damping component <NUM>, thereby the damping effect can be achieved. That is, the damping integrated device <NUM> has both frequency adjustment and damping characteristics. The frequency adjustment component <NUM> and the damping component <NUM> are integrated into the inner cavity 10a of the base body <NUM>, so the damping integrated device <NUM> has a compact overall structure and is easy to maintain while satisfying the requirements for frequency adjustment and damping. Meanwhile, the damping component <NUM> and the frequency adjustment component <NUM> are both connected with the external components via the first connector <NUM> and the base body <NUM>, so few interfaces and strong versatility can be achieved.

The elastic member <NUM> provided in the above embodiments includes two or more springs <NUM> spaced apart and respectively extending along the lengthwise direction X. One end of each spring <NUM> is connected to the base body <NUM> and the other end thereof is connected to the connecting member <NUM>. By providing the elastic member <NUM> to include two or more springs <NUM> which are spaced apart, the overall structure of the elastic member <NUM> is simplified, and the frequency adjustment characteristics of the damping integrated device <NUM> are better optimized. Therefore, when the damping integrated device <NUM> is applied to the damper <NUM>, the requirement for frequency adjustment of damper <NUM> can be better ensured.

At least one spring <NUM> may be detachably connected to the base body <NUM> and the connecting member <NUM>, respectively. With the above configuration, the number of springs <NUM> included in the elastic member <NUM> may be changed as required, thereby better ensuring the requirement for frequency adjustment of the damping integrated device <NUM>, so that the damper <NUM> to which the damping integrated device <NUM> is applied can adjust the number of springs <NUM> according to the frequency of the component to be damped (e.g., the tower <NUM>), so as to keep the frequencies of the both be consistent as much as possible and better optimize the damping effect.

As an optional implementation, a plurality of first hanging rings 20a may be provided on a surface of the connecting member <NUM> facing the elastic member <NUM> in the lengthwise direction X, and a plurality of second hanging rings 20b being in one-to-one correspondence with the first hanging rings 20a may be provided on a surface of the inner cavity 10a of the base body <NUM> facing the connecting member <NUM>. One end of the spring <NUM> facing the first hanging ring 20a is hooked onto and is detachably connected with the first hanging ring 20a, and the other end of the spring <NUM> facing the second hanging ring 20a is hooked onto and is detachably connected with the second hanging ring 20b. With the above configuration, the detachable connection of the spring <NUM> can be ensured.

In some optional embodiments, each of the springs <NUM> may be detachably connected to the base body <NUM> and the connecting member <NUM>, respectively. With the above configuration, the frequency of the damper <NUM> into which the damping integrated device <NUM> is applied can be adjusted to be closer to the frequency of the component to be damped, and the damping effect can be ensured. Meanwhile, with the above configuration, it is possible to facilitate the replacement of the spring <NUM>, thereby ensuring that the elastic coefficient of the spring <NUM> always satisfies the requirement for frequency adjustment of the damping integrated device <NUM>.

As an optional implementation, the damping integrated device <NUM> provided in the above embodiments may further include a transition plate 20c, and the base body <NUM> may be connected to each spring <NUM> of the elastic member <NUM> via the transition plate 20c. When the transition plate 20c is included, the second hanging rings 20b may be indirectly connected to the base body <NUM> through the transition plate 20c. By providing the transition plate 20c, the installation of the elastic member <NUM> can be further facilitated, while the damping integrated device <NUM> can be easily processed and assembled as a whole, and the wear on the base body <NUM> can be reduced.

Optionally, the transition plate 20c and the connecting member <NUM> may be both in a plate-like structure and disposed opposite to each other in the lengthwise direction X, and each of the springs <NUM> may be connected between the transition plate 20c and the connecting member <NUM>.

Please continue to refer to <FIG>, as an optional implementation, in the damping integrated device <NUM> provided in the above-mentioned embodiments of the present disclosure, the base body <NUM> includes a cylinder <NUM> extending along the lengthwise direction X and end caps <NUM> respectively disposed at both ends of the cylinder <NUM> in the lengthwise direction X, and the end caps <NUM> and the cylinder <NUM> are enclosed together to form an inner cavity 10a. In a direction intersecting with the lengthwise direction X, in particular a direction perpendicular to the lengthwise direction X, a spacer cavity is formed between the cylinder <NUM> and the frequency adjustment component <NUM>, and the damping component <NUM> is located in the spacer cavity. With the above configuration, the requirements for frequency adjustment and damping of the damping integrated device <NUM> can be better satisfied, while the internal space of the base body <NUM> can be better utilized to satisfy the integration requirements.

In some optional embodiments, in the lengthwise direction X of the base body <NUM>, the cylinder <NUM> may have an annular cross section, and the end cap <NUM> is shaped to match the cylinder <NUM>. The two end caps <NUM> in the lengthwise direction X may be detachably connected to the cylinder <NUM>, respectively. Alternatively, in some examples, one of the end cap <NUM> may be fixedly connected to or integrally formed with the cylinder <NUM>, and the other of the end caps <NUM> may be detachably connected to the cylinder <NUM>. With the configuration, the installation of the frequency adjustment component <NUM> and the damping component <NUM> can be facilitated. Optionally, one of the end cap <NUM> may be engaged with the first connector <NUM>. Optionally, the end cap <NUM> that engages with the first connector <NUM> may be detachably connected with the cylinder <NUM>.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, the damping component <NUM> includes a mounting member <NUM>, a supporting member <NUM> and a magnet <NUM>. One end of the mounting member <NUM> in the lengthwise direction X is connected to the connecting member <NUM>, the magnet <NUM> is disposed facing the cylinder <NUM> and is connected to the mounting member <NUM>, and the supporting member <NUM> is supported between the mounting member <NUM> and the cylinder <NUM> such that an air gap <NUM> is formed between the magnet <NUM> and the cylinder <NUM>. The first connector <NUM> is capable of driving the magnet <NUM> to move relative to the base body <NUM> along the lengthwise direction X through the connecting member <NUM> and generating an induced eddy current in the base body <NUM>.

By adopting the above-mentioned structural form, when the component to be damped (e.g., the tower <NUM>) to which the damping component <NUM> is applied vibrates, since the first connector <NUM> is connected to the first mass block 200b of the damping body portion <NUM>, the vibration of the component to be damped makes the first mass block 200b drive the first connector <NUM> to move along the lengthwise direction X, in turn making the magnet <NUM> move relative to the cylinder <NUM> and generating the induced eddy current inside the cylinder <NUM>, so as to absorb the kinetic energy of the first connector <NUM> and convert it into thermal energy, thereby reducing the vibration of the component to be damped. In addition, during this process, each spring <NUM> of the frequency adjustment component is stretched or shrunk due to the movement of the first connector <NUM>, so as to adjust the frequency of the damper <NUM>.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, the mounting member <NUM> has a cylindrical structure and is disposed around the elastic member <NUM>. The connecting member <NUM> is shaped to match the mounting member <NUM>, and is connected to and closes one end of the mounting member <NUM> in the lengthwise direction X. The magnet <NUM> includes a plurality of magnet blocks <NUM>, and at least part of the magnet blocks <NUM> are spaced apart in the lengthwise direction X. With the above configuration, the damping integrated device <NUM> can be made more compact in structure while the requirements for frequency adjustment and damping are satisfied, the frequency of the damper <NUM> can be better adjusted, and the kinetic energy of the first mass block 200b acting on the first connecting member <NUM> can be consumed to ensure the vibration reduction effect.

As an optional implementation, at least part of magnetic blocks <NUM> may be spaced apart along an outer annular surface of the mounting member <NUM> according to the vibration reduction requirement.

In some optional embodiments, the mounting member <NUM> may be integrally formed with the connecting member <NUM>, thereby achieving high connection strength and easy installation.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, the mounting member <NUM> may be disposed coaxially with the cylinder <NUM> of the base body <NUM>. Therefore, when the mounting member <NUM> moves relative to the cylinder <NUM> together with the first connector <NUM>, the eddy current generated on the cylinder <NUM> is more uniform, and the kinetic energy of the first connector <NUM> can be better converted into the thermal energy on the cylinder <NUM>, thereby ensuring the damping effect.

As an optional implementation, in the damping integrated device <NUM> provided in the above embodiments, the supporting member <NUM> includes two or more first rollers <NUM>, which are spaced apart and are rotatably connected to the mounting member <NUM> respectively. Since the supporting member <NUM> adopts the above-mentioned structural form, it is possible to not only ensure the formation of the air gap <NUM> between the magnet <NUM> and the cylinder <NUM>, but also form a rolling friction between the supporting member <NUM> and the inner wall of the base body <NUM>, thereby ensuring the smooth movement of the first connector <NUM> to drive the mounting member <NUM>, better absorbing the kinetic energy of the first connector <NUM>, and ensuring the damping effect of the damping integrated device <NUM> and the damper <NUM> to which the damping integrated device <NUM> is applied.

Optionally, the magnets <NUM> are provided with first rollers <NUM> at both ends in the lengthwise direction X, respectively. Optionally, the two or more first rollers <NUM> are spaced apart in a circumferential direction of the mounting member <NUM>, thereby the uniformity of the air gap <NUM> formed between the magnet <NUM> and the cylinder <NUM> can be ensured.

In some optional embodiments, a depression (not shown) may be provided on an outer circumferential surface of the cylinder <NUM>, so that at least potion of the first roller <NUM> extends into the depression and is rotatably connected to the cylinder <NUM> through a rotating member such as a rotating shaft.

Please continue to refer to <FIG>, as an optional implementation, in the damping integrated device <NUM> provided in the above embodiments, the cylinder <NUM> is provided with a first opening <NUM>, and the first opening <NUM> is in communication with the inner cavity 10a. The damping component <NUM> can generate the eddy current on the cylinder <NUM> to convert the kinetic energy of the first connector <NUM> into thermal energy of the cylinder <NUM>. By providing the first opening <NUM> on the cylinder <NUM>, the sufficient heat dissipation of the damping integrated device <NUM> can be facilitated and the damping effect of the damping integrated device <NUM> can be ensured. Meanwhile, with the above configuration, the maintenance of the internal structure of the damping integrated device <NUM> can be also facilitated, for example, the disassembly and assembly and replacement of the spring <NUM> and the like of the elastic member <NUM> can be facilitated.

Optionally, the number of the first opening <NUM> is not limited, it may be one, alternatively, may also be two or more. When there are two or more first openings <NUM>, the two or more first openings <NUM> are distributed at intervals in the circumferential direction of the cylinder <NUM>. Optionally, the first opening <NUM> penetrates a side wall of the cylinder <NUM> in a radial direction of the cylinder <NUM> and is in communication with the inner cavity 10a.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, the mounting member <NUM> is provided with a second opening <NUM>, and the second opening <NUM> is disposed opposite to the first opening <NUM>, and thereby the requirements for heat dissipation and maintenance of the damping integrated device <NUM> can be better ensured.

Optionally, the second opening <NUM> and the first opening <NUM> may be disposed opposite to each other in the direction intersecting the lengthwise direction X. In some optional examples, the second opening <NUM> and the first opening <NUM> are disposed opposite to each other in the radial direction of the cylinder <NUM>.

Please refer to <FIG> together. As an optional implementation, the damping integrated device <NUM> provided in the above embodiments of the present disclosure further includes a non-return limiting component <NUM>. The non-return limiting component <NUM> is connected to one end of the base body <NUM> in the lengthwise direction X, and the non-return limiting component <NUM> is configured to limit a maximum dimension of the first connector <NUM> protruding out of the base body <NUM> in the lengthwise direction X. With the above configuration, the damping integrated device <NUM> can also have a non-return limiting function. Since the first connector <NUM> may be connected with the first mass block 200b of the damping body portion <NUM>, the movement range of the first mass block 200b can be further limited by limiting limit the maximum dimension of the first connector <NUM> protruding out of the base body <NUM> in the lengthwise direction X. Therefore, the requirement of vibration damping of the damper <NUM> to which the damping integrated device <NUM> is applied are satisfied, while the component to be damped (e.g., the tower <NUM>) can be prevented from being damaged due to the collision between the component to be damped and the damping body portion <NUM>, thereby the safety of vibration damping can be ensured.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, the non-return limiting component <NUM> includes an adjusting rod <NUM> extending along the lengthwise direction X and connected to the base body <NUM>. The adjusting rod <NUM> at least partially extends into the inner cavity 10a, and a size of the adjusting rod <NUM> extending into the inner cavity 10a is adjustable. The adjusting rod <NUM> may abut against a surface of the connecting member <NUM> away from the elastic element <NUM> to limit the displacement amount of the connecting member <NUM> along the lengthwise direction X in the base body <NUM>.

By adopting the above-mentioned structure, the non-return limiting component <NUM> can limit the displacement amount of the connecting member <NUM> along the lengthwise direction X in the base body <NUM> by changing the size of the adjusting rod <NUM> extending into the inner cavity 10a. Since the first connector <NUM> is connected to the connecting member <NUM>, the maximum size of the first connector <NUM> protruding out of the base body <NUM> in the lengthwise direction X can be limited by limiting the displacement amount of the connecting member <NUM> along the lengthwise direction X, thereby the safety of the damper <NUM> can be ensured.

As an optional implementation, the end cap <NUM>, through which the first connector <NUM> penetrates, may be provided with a connecting hole penetrating along the lengthwise direction X, and may be provided with a locking nut <NUM> threadedly connected to the adjusting rod <NUM>. The adjusting rod <NUM> may be inserted into the inner cavity 10a through the connecting hole and locked in the relative position of the end cap <NUM> by the locking nuts <NUM> disposed oppositely in the lengthwise direction X and disposed on both sides of the same end cap <NUM>. When the size of the adjusting rod <NUM> extending into the inner cavity 10a needs to be changed, the adjustment can be accomplished by moving the adjusting rod <NUM> relative to the end cap <NUM> along the lengthwise direction X to a predetermined position and tightening the lock nuts <NUM>. Therefore, the operation is simple and adjustment is easy.

In some optional embodiments, in the damping integrated device <NUM> provided in the above embodiments, a buffer pad <NUM> capable of being deformed by force in the lengthwise direction X, is provided on a surface of the connecting member <NUM> away from the elastic member <NUM>. The buffer pad <NUM> is disposed facing the non-return limiting component <NUM>. With the above configuration, when the connecting member <NUM> comes into contact with the non-return limiting component <NUM>, a flexible contact is generated, so the non-return force is not too large, and the use safety of the damper <NUM> to which the damping integrated device <NUM> is applied can be further ensured. Optionally, the buffer pad <NUM> may be a buffer structure such as a rubber pad, a sponge pad, and the like which can be deformed in the lengthwise direction X when subjected to force.

Alternatively, in some examples, the adjusting rod <NUM> may also be an elastic rod. Optionally, the adjusting rod <NUM> is capable of being deformed by force in the lengthwise direction X. Likewise, the non-return force is not too large, and the use safety of the damper <NUM> to which the damping integrated device <NUM> is applied can be further ensured.

Please continue to refer to <FIG>. As an optional implementation, in the damping integrated device <NUM> provided in the above embodiments, the first connector <NUM> may be a rod component. Since the first connector <NUM> adopts the above-mentioned form, it has a simple structure and is easily connected with the damping body portion <NUM> and other devices, thereby the overall cost of the damping integrated device <NUM> can be reduced. In some optional embodiments, the first connector <NUM> may be hinged with the damping body portion <NUM> by in particular a ball hinge or a Hooke hinge.

Optionally, a through hole 10b is provided on the base body <NUM> at the position where the first connector <NUM> is connected with the base body <NUM>, a second roller <NUM> is provided on a side wall enclosing the through hole 10b, and the base body <NUM> is in rolling fit with the first connector <NUM> via the second roller <NUM>. With the above configuration, a rolling friction is generated at the connection between the first connector <NUM> and the base body <NUM>, thereby smooth movement of the first connector <NUM> in the lengthwise direction X can be further ensured and the vibration reduction effect can be optimized.

Optionally, the first connector <NUM> is disposed coaxially with the cylinder <NUM> of the base body <NUM>, so the first connector <NUM> can transmit the force to the frequency adjustment component <NUM> and the damping component <NUM> uniformly when subjected to the action from the first mass block 200b of the damping body portion <NUM>, thereby further satisfying the requirements for frequency adjustment and vibration reduction of the damper <NUM> to which the damping integrated device <NUM> is applied.

In some optional examples, the above-mentioned through hole 10b may be provided on the end cap <NUM> where the base body <NUM> and the first connector <NUM> are connected with each other, so as to ensure the connection requirements between the first connector <NUM> and the damping body portion <NUM> and between the frequency adjustment component <NUM> and the damping component <NUM>.

In some optional embodiments, the damping integrated device <NUM> provided in the above embodiments further includes a second connector <NUM>. The second connector <NUM> is disposed opposite to the first connector <NUM> in the lengthwise direction X, and the second connector <NUM> is connected to an end of the base body <NUM> away from the first connector <NUM>. By providing the second connector <NUM>, the connection requirements between the damping integrated device <NUM> and the component to be damped (e.g., the tower <NUM>) or other components of the damper <NUM> can be facilitated, and thereby the damping requirement of the damper <NUM> to which the damping integrated device <NUM> is applied can be satisfied. Optionally, the second connector <NUM> may be rotatably connected with the component to be damped (e.g., the tower <NUM>) or other components of the damper <NUM> by optionally a ball hinge or a Hooke hinge.

In some optional embodiments, the second connector <NUM> may also be a rod component. Optionally, the second connector <NUM> may be coaxially disposed with the first connector <NUM>, to optimize the performance of the damping integrated device <NUM>. Optionally, the second connector <NUM> may be fixedly connected to the end cap <NUM> of the base body <NUM> away from the first connector <NUM>.

When the damping integrated device <NUM> provided in the embodiment of the present disclosure is assembled, the magnet <NUM> may be connected to the mounting member <NUM>, and the supporting member <NUM> may be then mounted onto the mounting member <NUM>, thereafter, the formed module may be connected with the connecting member <NUM>. When the buffer pad <NUM> is included, the buffer pad <NUM> may be connected on the surface of the connecting member <NUM> away from the mounting member <NUM> to form a module to be installed, and the module to be installed may be installed into the inner cavity 10a of the base body <NUM>, and then, the first connector <NUM> and the elastic member <NUM> may be connected, and the corresponding end cap <NUM> may be provided. When the second roller <NUM> is included, the second roller <NUM> may be installed between the end cap <NUM> and the first connector <NUM>, and the end cap <NUM> with the second roller <NUM> may be then connected to the cylinder <NUM> of the base body <NUM>, and the assembling of the device is finished. During use, the first connector <NUM> of the damping integrated device <NUM> may be connected to the damping body <NUM> of the damper <NUM>, and an end of the base body <NUM> away from the first connector <NUM> may be connected to a fixed end (e.g., the inner wall of the tower <NUM>) of the wind turbine. During use, when the first opening <NUM> is included, the frequency adjustment and routine maintenance of the spring <NUM> can be performed through the first opening <NUM> on a side end face of the main structure.

Please refer to <FIG> together. It can be appreciated that the above-mentioned embodiments of the present disclosure are all illustrated as examples in which the damping component <NUM> includes the mounting member <NUM>, the supporting member <NUM> and the magnet <NUM>, and the above manner is an optional implementation but is not limited. In some other examples, the damping component <NUM> may also include a friction body 40a connected to the connecting member <NUM>. The friction body 40a abuts against the cylinder <NUM>, and the first connector <NUM> is capable of driving the friction body 40a to move relative to the cylinder <NUM> by the connecting member <NUM>, so that the friction body 40a is in friction fit with the cylinder <NUM>. With the above configuration, the first connector <NUM> can be moved along the lengthwise direction X under the action of the damping body portion <NUM>, the friction body 40a can be then driven to move relative to the cylinder <NUM> under the action of the connecting member <NUM> to generate the frictional heat between the friction body 40a and the cylinder <NUM>, so the kinetic energy of the first connector <NUM> can be continuously absorbed and converted into the thermal energy of the cylinder <NUM>, thereby the vibration reduction requirement can be also satisfied.

Optionally, the friction body 40a may have a cylindrical structure and be disposed coaxially with the cylinder <NUM>. With the above configuration, the frictional contact area between the friction body 40a and the cylinder <NUM> can be increased, thereby the kinetic energy of the first connector <NUM> can be better absorbed, and the vibration reduction effect may be optimized.

In some optional embodiments, the friction body 40a may be integrally formed with the connecting member <NUM>, so the connection strength is high, and the assembling of the damping integrated device <NUM> is easy. When the damping component <NUM> adopts the above structure, a third opening (not shown) opposite to the first opening <NUM> of the cylinder 11may be provided on the friction body 40a as required, so as to better ensure the heat dissipation requirements of the damping integrated device <NUM>.

Please refer to <FIG> together. Optionally, in some examples, the damping component <NUM> may also include a bearing body <NUM> having a closed cavity <NUM> and a damping liquid <NUM> disposed in the closed cavity <NUM>. The bearing body <NUM> is in the shape of an annular cylinder and is disposed around the elastic member <NUM>. The bearing body <NUM> is connected with the connecting member <NUM> and abuts against the cylinder <NUM>, and the first connector <NUM> is capable of driving the bearing body <NUM> so that the damping fluid <NUM> reciprocates along the lengthwise direction X. With the above configuration, the first connector <NUM> can be moved along the lengthwise direction X under the action of the damping body portion <NUM>, and then the bearing body <NUM> can be driven to move relative to the cylinder <NUM> under the action of the connecting member <NUM>, so that the damping fluid <NUM> reciprocates along the lengthwise direction X to absorb and convert the kinetic energy of the first connector <NUM> into the kinetic energy of the damping fluid <NUM>, thereby the damping effect can be also satisfied.

Please refer to <FIG> together. It can be appreciated that the damping integrated devices <NUM> provided in the above embodiments are illustrated as examples in which the supporting member <NUM> includes two or more first rollers <NUM>. In some other examples, the supporting member <NUM> may include two or more sliders <NUM>, and the two or more sliders <NUM> are spaced apart and are fixedly connected to the mounting member <NUM> respectively. By providing the supporting member <NUM> to include the two or more sliders <NUM>, each of which is supported between the mounting member <NUM> and the cylinder <NUM>, the formation requirements of the air gap <NUM> can also be ensured. Meanwhile, the arrangement manner of the sliders <NUM> on the mounting member <NUM> may be the same as the arrangement manner of the first rollers <NUM> on the mounting member <NUM>, and details are not repeated here.

Please refer to <FIG> together. The above-mentioned embodiments are illustrated as examples in which the cross-sectional of the cylinder <NUM> in the lengthwise direction X is an annular. It can be appreciated that the above-mentioned manner is an optional implementation but is not limited thereto. In some other examples, the cross-section of the cylinder <NUM> in the lengthwise direction X may also be a polygon, optionally a regular polygon. Meanwhile, the mounting member <NUM> inside may also be shaped to match the cylinder <NUM>. In addition, when the first opening <NUM> is provided on the cylinder <NUM>, the first opening <NUM> may penetrate the side wall of the cylinder <NUM> in the direction intersecting the lengthwise direction X. When the number of the first openings <NUM> is two or more, the two or more first openings <NUM> may also be spaced apart in the circumferential direction of the cylinder <NUM>, for example, may be provided on different sidewall surfaces of the cylinder <NUM>. All of the above configurations can satisfy the performance requirements of the damping integrated device <NUM>.

Please refer to <FIG>, as an optional implementation, the damping integrated devices <NUM> provided in the above-mentioned embodiments are all illustrated as examples in which the non-return limiting component <NUM> includes the adjusting rod <NUM> extending along the lengthwise direction X and connected to the base body <NUM>, and this is an optional implementation. In some other examples, the non-return limiting component <NUM> may include a friction plate 50a. The friction plate 50a is located in the inner cavity 10a and connected to a side of the base body <NUM> away from the elastic member <NUM> in the lengthwise direction X, and the friction plate 50a may rub against the connecting member <NUM> to stop the movement of connecting member <NUM>. Likewise, the non-return limiting requirements of the damping integrated device <NUM> can also be satisfied.

Optionally, the friction plate 50a may be an annular plate that is shaped to match the shape of the inner wall of the cylinder <NUM>, and may be located inside the cylinder <NUM> and engage with the cylinder <NUM>. Therefore, the friction plate 50a can be easily installed, and the non-return limiting requirements can also be satisfied.

In some optional embodiments, the friction plate 50a may be detachably connected with the cylinder <NUM>, so the friction plate 50a with different friction coefficients may be replaced to satisfy the different non-return limiting requirement of the damper <NUM> to which the damping integrated device <NUM> is applied.

Therefore, the damping integrated devices provided in the embodiments of the present disclosure include the base body <NUM>, the frequency adjustment component <NUM>, the first connector <NUM> and the damping component <NUM>. The frequency adjustment component <NUM> includes the elastic member <NUM> and the connecting member <NUM> disposed in the inner cavity 10a of the base body <NUM>. The elastic element <NUM> is connected with the base body <NUM> and the connecting member <NUM>, respectively, and the connecting member <NUM> is connected with the first connector <NUM>. The damping component <NUM> is also located in the inner cavity 10a of the base body <NUM>, and is connected to the connecting member <NUM> and abuts against the inner wall of the base body <NUM>. When the damping integrated device <NUM> is in use, the main body portion of the damper <NUM> may be connected with the component to be damped (e.g., the tower <NUM>) via the first connector <NUM> and the end of the base body <NUM> away from the first connector <NUM>, respectively. Since both the elastic member <NUM> and the damping component <NUM> are connected to the first connector <NUM> via the connecting member <NUM> and are connected to or press against the base body <NUM>, respectively, the damping integrated device <NUM> can have both frequency adjustment and damping characteristics. Since the frequency adjustment component <NUM> and the damping component <NUM> are integrated into the inner cavity 10a of the base body <NUM>, the damping integrated device <NUM> has a compact overall structure, is easy to maintain, and has few interfaces and strong versatility, while satisfying the requirements for frequency adjustment and damping.

Since the damper <NUM> provided in the embodiments of the present disclosure includes the damping integrated device <NUM> provided in the above-mentioned embodiments, the requirements for frequency adjustment and damping can be satisfied. Further, when the damping integrated device <NUM> includes the non-return limiting component <NUM>, the corresponding damper <NUM> integrates the non-return limiting component <NUM> into the base body <NUM>, and thus few interfaces and easy maintenance can be achieved while the vibration reduction requirement are satisfied.

Please refer to <FIG> together, it can be appreciated that the damper <NUM> provided in the above-mentioned embodiments of the present disclosure may be a swing damper, and the damping integrated device <NUM> included therein may be one in number, alternatively, may also be plural in number. When the number is plural, the plural damping integrated devices <NUM> may be connected to different surfaces of the first mass block 200b. Alternatively, in some examples, as shown in <FIG>, the plural damping integrated devices <NUM> may also be connected to the same surface of the first mass block 200b, as long as the performance requirements of the damper <NUM> can be satisfied, and the specific limitations will not be described here.

Please also refer to <FIG>, the dampers <NUM> provided in the above-mentioned embodiments of the present disclosure are all illustrated as examples in which the damping body <NUM> includes the swing arm 200a, the first mass block 200b connected to the swing arm 200a and the portion of the first connector <NUM> protruding out of the base body <NUM> is hinged with the first mass block 200b. This manner is an optional implementation but is not limited hereto. In some examples, the damping body portion <NUM> includes a base 200c, an arc-shaped slide rail 200d supported onto the base 200c, and a second mass block 200e disposed on the arc-shaped slide rail 200d and slidably connected to the arc-shaped slide rail 200d. The portion of the first connector <NUM> protruding out of the base body <NUM> is hinged with the second mass block 200e, and the end of the base body <NUM> away from the first connector <NUM> is hinged with the base 200c. With the above configuration, the damping limiting requirement of the damper <NUM> can also be satisfied. Moreover, when the damping body <NUM> adopts the above structure, the damper <NUM> may be placed onto the component to be damped (e.g., the tower <NUM>) and connected to the component to be damped via the base 200c, and thereby the vibration damping requirements can also be satisfied.

Optionally, the base 200c may have a frame structure with a recess, the arc-shaped slide rail 200d is located in the recess of the base 200c and is connected to a side wall of the base 200c, and the arc-shaped slide rail 200d protrudes toward an inner side of the recess. The second mass block 200e can slide along the arc-shaped trajectory of the arc-shaped slide rail 200d to absorb the kinetic energy of the component to be damped. When the second mass block 200e moves relative to the arc-shaped slide rail 200d, since the first connector <NUM> is connected with the second mass block 200e, the first connector <NUM> can move relative to the base body <NUM> along the lengthwise direction of the damping integrated device <NUM>, in turn to drive the frequency adjustment component <NUM> and the damping component <NUM> to realize the frequency adjustment and damping functions, thus the correspondingly provided non-return limiting component <NUM> can limit the length of the first connector <NUM> protruding out of the base body <NUM>, thereby limiting the maximum stroke of the second mass block 200e on the arc-shaped slide rail 200d, and ensuring the safety of the damping.

It can be appreciated that the wind turbines provided in the above embodiments of the present disclosure are all illustrated as examples in which the damper <NUM> is placed onto the tower <NUM>, and this manner is an optional implementation. In some other examples, the damper <NUM> may also be placed inside the nacelle <NUM> or in other components that need to be damped.

Since the wind turbines provided in the embodiments of the present disclosure includes the damper <NUM> provided in the above-mentioned embodiments, it has better vibration damping effect, high safety performance and easy maintenance.

Claim 1:
A damper (<NUM>), comprising:
a damping body portion (<NUM>); and
a damping integrated device (<NUM>) comprising:
a base body (<NUM>), which has a predetermined length and includes an inner cavity (10a) extending along a lengthwise direction (X) thereof;
a frequency adjustment component (<NUM>) disposed in the inner cavity (10a), the frequency adjustment component (<NUM>) comprising an elastic member (<NUM>) and a connecting member (<NUM>), with one end of the elastic member (<NUM>) in the lengthwise direction (X) being connected to the base body (<NUM>), and the other end thereof being connected to the connecting member (<NUM>);
a first connector (<NUM>) extending into the inner cavity (10a) and at least partially protruding out of the base body (<NUM>) in the lengthwise direction (X), the first connector (<NUM>) being connected to the connecting member (<NUM>) and capable of moving relative to the base body (<NUM>), so as to make the elastic member (<NUM>) stretch or shrink in the lengthwise direction (X); and
a damping component (<NUM>) disposed in the inner cavity (10a), the damping component (<NUM>) being connected to the connecting member (<NUM>) and at least partially abutting against an inner wall of the base body (<NUM>), and the damping component (<NUM>) being configured to absorb kinetic energy of the first connector (<NUM>),
characterized in that
a portion of the first connector (<NUM>) protruding out of the base body (<NUM>) in the lengthwise direction (X) is rotatably connected to the damping body portion (<NUM>), an end of the base body (<NUM>) away from the first connector (<NUM>) can be connected to a component to be damped;
the elastic member (<NUM>) comprises two or more springs (<NUM>), which are spaced apart and extend respectively along the lengthwise direction (X), one end of each of the two or more springs (<NUM>) is connected to the base body (<NUM>) and the other end thereof is connected to the connecting member (<NUM>), and at least one of the two or more springs (<NUM>) is detachably connected to the base body (<NUM>) and the connecting member (<NUM>), respectively; and
the frequency adjustment component (<NUM>) is configured to, when the component to be damped vibrates, adjust a frequency of the damper (<NUM>) to match with a frequency of the component to be damped.