CN216589735U

CN216589735U - Flexible resonance liquid damper for wind turbine unit

Info

Publication number: CN216589735U
Application number: CN202123411760.6U
Authority: CN
Inventors: 傅洁
Original assignee: Wuxi Siegel Energy Technology Co ltd
Current assignee: Wuxi Siegel Energy Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-05-24
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a wind energy conversion system flexible resonance liquid damper for unit, comprising a hydraulic cylinder, pneumatic cylinder left side outer wall central point puts fixedly connected with connecting rod, pneumatic cylinder left side inner wall fixed position is connected with the oil storage jar, pneumatic cylinder right side central point puts and runs through and sliding connection has the guide arm, guide arm left side fixed position is connected with the piston, piston left side central point puts fixedly connected with check valve. The utility model discloses in, guide arm endwise slip, and then make the piston take place the motion, arouse viscous damping liquid to flow in the attenuator cavity, the piston has divided into two parts with the attenuator cavity, piston motion makes two spaces form the pressure differential each other, viscous damping liquid will flow through the check valve emergence between two spaces, because the check valve effect, viscous damping liquid only can flow according to a certain direction, promotes the heat distribution of viscous damping liquid for the attenuator is more even to the energy loss.

Description

Flexible resonance liquid damper for wind turbine unit

Technical Field

The utility model relates to a attenuator technical field especially relates to a flexible resonance liquid damper for wind energy conversion system unit.

Background

The damper is a device for providing resistance to movement and reducing movement energy. Various dampers (or shock absorbers) have been used for reducing vibration and energy in the industries of aerospace, aviation, war industry, firearms, automobiles and the like. Since the 70 s of the 20 th century, people gradually transferred the technologies to the structural engineering such as buildings, bridges, railways and the like, and the development of the technologies is very rapid. Especially, the hydraulic viscous damper with history of over fifty years is subjected to a great amount of experiments, strict examination and repeated demonstration before being accepted by the structural engineering world in the united states, especially a long process of earthquake examination. A device for quickly stopping a movable portion of a meter at a stable deflected position. In seismic instruments, dampers are used to absorb the natural vibrational energy of a vibration system, with the damping force generally being proportional to the velocity of the vibration system motion. The damper mainly comprises a liquid damper, a gas damper and an electromagnetic damper. The damper plays an important role in compensating for small friction and air resistance in the vibration pickup pendulum system, improving frequency response, and the like.

Chinese patent 201620142335.1 discloses an annular liquid damper, at least two-layer annular liquid damper body of establishing ties from top to bottom, every layer annular liquid damper body comprises one or more water tanks, the water tank includes box, horizontal damping net and vertical damping net, horizontal damping net is fixed in on the inside wall of box, vertical damping net one end is fixed in the bottom half, and the other end is fixed with horizontal damping net, the tuning liquid is equipped with in the water tank. The device that this patent provided is at the practical application in-process, and viscous damping liquid's heat distribution is inhomogeneous, and the attenuator is lower to the efficiency of energy loss, and the device that this patent provided simultaneously, sealed effect is relatively poor, and inside the dust got into the device easily, the piston outside did not have the installation packing ring, makes the piston suffer destruction easily.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the defects existing in the prior art and providing a flexible resonance liquid damper for a wind turbine unit.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a wind turbine is flexible resonance liquid damper for unit, includes the pneumatic cylinder, pneumatic cylinder left side outer wall central point puts fixedly connected with connecting rod, connecting rod left side fixedly connected with blotter and blotter are the silica gel material, blotter left side fixedly connected with ring flange, pneumatic cylinder left side inner wall fixedly connected with storage cylinder, pneumatic cylinder right side central point puts and runs through and sliding connection has the guide arm, storage cylinder right side inner wall fixedly connected with of position fills up, the fixedly connected with oil blanket is put to dustproof pad left side central point, guide arm left side fixedly connected with piston, piston external diameter intermediate position fixedly connected with packing ring, piston left side central point fixedly connected with check valve.

As a further description of the above technical solution:

and screw holes are formed in the four corners of the left side of the flange plate in a penetrating manner.

As a further description of the above technical solution:

the center of the right side of the oil storage cylinder is penetrated and connected with a guide rod in a sliding way.

As a further description of the above technical solution:

the middle position of the right side of the guide rod is fixedly connected with a hanging ring.

As a further description of the above technical solution:

the left center of the hydraulic cylinder is fixedly connected with a spring, and the spring is in contact with the piston.

As a further description of the above technical solution:

the gasket is connected on the inner wall of the oil storage cylinder in a sliding way.

As a further description of the above technical solution:

a cavity is arranged in the oil storage cylinder, and viscous damping liquid is injected into the cavity.

As a further description of the above technical solution:

the dustproof pad and the oil seal are both connected with the guide rod in a penetrating and sliding mode.

The utility model discloses following beneficial effect has:

1. the utility model discloses in, at first when the structure takes place to vibrate, can drive guide arm endwise slip, and then make the piston take place the motion, arouse viscous damping liquid in the attenuator cavity to flow, the piston has divided into two parts with the attenuator cavity, piston motion makes two spaces form the pressure differential each other, viscous damping liquid will flow through the check valve emergence between two spaces, because the check valve effect, viscous damping liquid only can flow according to a certain direction, promote the heat distribution of viscous damping liquid, make the attenuator more even to the energy loss.

2. The utility model discloses in, inside the oil storage cylinder was in the pneumatic cylinder, installed dustproof pad in the pneumatic cylinder, when the guide arm motion, can prevent effectively that the dust from getting into inside the oil storage cylinder, prevent that the dust from entering into fluid and make fluid rotten, install the packing ring on the piston, can effectively avoid contacting between piston and the inner wall, avoid drawing the jar phenomenon to appear, protected the piston very effectively, promoted the whole life of device.

Drawings

Fig. 1 is a perspective view of a flexible resonant liquid damper for a wind turbine set according to the present invention;

fig. 2 is an internal structure view of a hydraulic cylinder of the flexible resonant liquid damper for a wind turbine set according to the present invention;

fig. 3 is the internal structure diagram of the oil storage cylinder of the flexible resonance liquid damper for the wind turbine set provided by the utility model.

Illustration of the drawings:

1. hanging a ring; 2. a guide bar; 3. a hydraulic cylinder; 4. a screw hole; 5. a flange plate; 6. a cushion pad; 7. a connecting rod; 8. an oil storage cylinder; 9. a check valve; 10. a piston; 11. a cavity; 12. a dust-proof pad; 13. oil sealing; 14. a gasket; 15. a spring.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a flexible resonance liquid damper for a wind turbine unit comprises a hydraulic cylinder 3, a connecting rod 7 is fixedly connected to the center position of the outer wall of the left side of the hydraulic cylinder 3, a cushion pad 6 is fixedly connected to the left side position of the connecting rod 7, the cushion pad 6 is made of silica gel, a flange 5 is fixedly connected to the left side position of the cushion pad 6, a storage cylinder 8 is fixedly connected to the left side inner wall position of the hydraulic cylinder 3, a guide rod 2 is penetratingly and slidably connected to the right side center position of the hydraulic cylinder 3, a dust-proof pad 12 is fixedly connected to the right side inner wall position of the storage cylinder 8, an oil seal 13 is fixedly connected to the left side center position of the dust-proof pad 12, a piston 10 is fixedly connected to the left side position of the guide rod 2, a gasket 14 is fixedly connected to the middle position of the outer diameter of the piston 10, a check valve 9 is fixedly connected to the left side center position of the piston 10, when the structure vibrates, the guide rod 2 is driven to axially slide, and the piston 10 is further moved, viscous damping liquid flows in the damper cavity 11, the piston 10 divides the damper cavity 11 into two parts, the piston 10 moves to enable the two spaces to mutually form pressure difference, the viscous damping liquid flows between the two spaces through the check valve 9, and due to the action of the check valve 9, the viscous damping liquid can only flow in a certain direction, so that the heat distribution of the viscous damping liquid is improved, and the energy dissipation of the damper is more uniform.

Screw holes 4 are formed in the four corners of the left side of a flange 5 in a penetrating mode, a guide rod 2 is connected with the center of the right side of an oil storage cylinder 8 in a penetrating mode, a hanging ring 1 is fixedly connected with the middle of the right side of the guide rod 2, a spring 15 is fixedly connected with the center of the left side of a hydraulic cylinder 3, the spring 15 is in contact with a piston 10, a gasket 14 is in sliding connection with the inner wall of the oil storage cylinder 8, a cavity 11 is formed in the oil storage cylinder 8, viscous damping liquid is injected into the cavity 11, a dustproof cushion 12 and an oil seal 13 are both connected with the guide rod 2 in a penetrating mode and in sliding connection, the oil storage cylinder 8 is located in the hydraulic cylinder 3, the dustproof cushion 12 is installed in the hydraulic cylinder 3, when the guide rod 2 moves, dust can be effectively prevented from entering the oil storage cylinder 8, the oil is prevented from entering the oil to cause the oil to deteriorate, the gasket 14 is installed on the piston 10, the contact between the piston 10 and the inner wall can be effectively prevented from being pulled, the piston 10 is very effectively protected, and the overall service life of the device is prolonged.

The working principle is as follows: firstly, when the structure vibrates, the guide rod 2 is driven to axially slide, and then the piston 10 moves to cause viscous damping liquid in the damper cavity 11 to flow, the damper cavity 11 is divided into two parts by the piston 10, the two spaces mutually form pressure difference by the movement of the piston 10, the viscous damping liquid flows between the two spaces through the check valve 9, the viscous damping liquid can only flow in a certain direction under the action of the check valve 9, the heat distribution of the viscous damping liquid is improved, the energy dissipation of the damper is more uniform, the oil storage cylinder 8 is positioned in the hydraulic cylinder 3, the dust-proof pad 12 is arranged in the hydraulic cylinder 3, when the guide rod 2 moves, dust can be effectively prevented from entering the oil storage cylinder 8, the oil is prevented from deteriorating due to the fact that the dust enters the oil, the gasket 14 is arranged on the piston 10, and contact between the piston 10 and the inner wall can be effectively avoided, the phenomenon of cylinder pulling is avoided, the piston 10 is effectively protected, and the whole service life of the device is prolonged.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a wind turbine is flexible resonance liquid damper for unit, includes pneumatic cylinder (3), its characterized in that: the central position of the outer wall of the left side of the hydraulic cylinder (3) is fixedly connected with a connecting rod (7), the left side position of the connecting rod (7) is fixedly connected with a cushion pad (6), the cushion pad (6) is made of silica gel material, a flange plate (5) is fixedly connected at the left side position of the cushion pad (6), an oil storage cylinder (8) is fixedly connected at the left side inner wall position of the hydraulic cylinder (3), the center of the right side of the hydraulic cylinder (3) is penetrated and connected with a guide rod (2) in a sliding way, the inner wall of the right side of the oil storage cylinder (8) is fixedly connected with a dustproof pad (12), the center of the left side of the dustproof pad (12) is fixedly connected with an oil seal (13), a piston (10) is fixedly connected at the left side position of the guide rod (2), a gasket (14) is fixedly connected at the middle position of the outer diameter of the piston (10), and a check valve (9) is fixedly connected to the center of the left side of the piston (10).

2. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: and four corners of the left side of the flange plate (5) are penetrated and provided with screw holes (4).

3. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the right center of the oil storage cylinder (8) is penetrated and connected with a guide rod (2) in a sliding way.

4. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the middle position of the right side of the guide rod (2) is fixedly connected with a hanging ring (1).

5. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the left center of the hydraulic cylinder (3) is fixedly connected with a spring (15), and the spring (15) is in contact with the piston (10).

6. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the gasket (14) is connected with the inner wall of the oil storage cylinder (8) in a sliding way.

7. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the oil storage cylinder (8) is internally provided with a cavity (11), and viscous damping liquid is injected into the cavity (11).

8. The flexible resonant liquid damper for the wind turbine assembly as claimed in claim 1, wherein: the dustproof pad (12) and the oil seal (13) are both connected with the guide rod (2) in a penetrating and sliding mode.