CN216789101U

CN216789101U - Eddy current damper

Info

Publication number: CN216789101U
Application number: CN202220268184.XU
Authority: CN
Inventors: 肖宇; 殷建彬
Original assignee: Tianjin Shanjiang Derun Technology Co ltd
Current assignee: Beijing Yuefeng Guangde Energy Technology Group Co ltd
Priority date: 2022-02-10
Filing date: 2022-02-10
Publication date: 2022-06-21
Anticipated expiration: 2032-02-10

Abstract

The application provides an eddy current damper, which comprises a shell; a mass block and a conductor plate are arranged in the shell; the mass block is arranged on the top of the shell through the swinging rod; the conductor plate is positioned below the mass block and is hemispherical; the mass block is provided with a conical hole coaxial with the conductor plate; a pull rod is arranged in the conical hole, and the inner diameter of one end close to the conductor plate is relatively larger; one end of the pull rod is movably connected with the shell, and a magnetic steel component matched with the conductor plate is installed at one end of the pull rod. According to the technical scheme that this application embodiment provided, through installation magnet steel assembly on the pull rod, the bell mouth on the cooperation quality piece can realize swing by a larger margin to take place relative motion with the conductor board, do the motion of cutting magnetic induction line, produce the original magnetic field interact that electric eddy current can produce with magnet steel assembly, thereby play the shock attenuation effect.

Description

Eddy current damper

Technical Field

The application relates to the technical field of wind power generation, in particular to an eddy current damper.

Background

Under the effect of wind load, the level can take place to the vibration for the fan tower section of thick bamboo, and when vibration amplitude reached the threshold value, fan stop work led to the power generation loss, meanwhile, under the vibration condition of long-term reciprocal, the accessory of fixing on the fan tower section of thick bamboo can take place not hard up, and the tower section of thick bamboo also has fatigue damage, and serious still can lead to the tower section of thick bamboo to collapse the damage accident, brings very big hidden danger for the safety, consequently, the above-mentioned problem is waited to solve urgently.

Disclosure of Invention

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide an eddy current damper.

The application provides an eddy current damper, which comprises a shell; a mass block and a conductor plate are arranged in the shell; the mass block is arranged on the top of the shell through a swinging rod; the conductor plate is positioned below the mass block and is hemispherical; the mass block is provided with a conical hole coaxial with the conductor plate; a pull rod is arranged in the conical hole, and the inner diameter of one end, close to the conductor plate, of the pull rod is relatively larger; one end of the pull rod is movably connected with the shell, and a magnetic steel component matched with the conductor plate is installed at one end of the pull rod.

Further, the pull rod is connected with the shell through a first universal shaft; the first universal shaft is arranged at the top of the shell and is positioned on the axis of the conical hole.

Further, the number of the swing rods is three; the three swinging rods are uniformly distributed around the pull rod, and two ends of the three swinging rods are respectively connected with the shell and the mass block through second universal joints.

Further, the magnetic steel component comprises a mounting frame and magnetic steel; the magnetic steel is arranged on the mounting rack; the mounting bracket is fixedly mounted at the end part of the pull rod.

Further, the mass block comprises a plurality of layers of mass plates; the multilayer mass plates are connected through bolts; the bolts are uniformly distributed around the tapered holes.

The application has the advantages and positive effects that:

this technical scheme is through installing magnet steel assembly on the pull rod, compare in installing and can have bigger amplitude of oscillation on the quality piece, take place relative motion with the conductor board, when doing the motion of cutting magnetic induction line, produce the original magnetic field interact that electric eddy current can produce with magnet steel assembly, can play bigger shock attenuation effect.

Drawings

Fig. 1 is a schematic structural diagram of an eddy current damper provided in an embodiment of the present application;

fig. 2 is a schematic structural diagram of a cross-sectional view of an eddy current damper provided in an embodiment of the present application.

The text labels in the figures are represented as: 100-a housing; 110-a mass; 120-a conductor plate; 130-a swing lever; 131-a second gimbal; 200-a pull rod; 210-a magnetic steel component; 220-first universal axis.

Detailed Description

The following detailed description of the present application is given for the purpose of enabling those skilled in the art to better understand the technical solutions of the present application, and the description in this section is only exemplary and explanatory, and should not be taken as limiting the scope of the present application in any way.

Referring to fig. 1-2, the present embodiment provides an eddy current damper, which includes a housing 100; the housing 100 is cylindrical, and a top cover is arranged at the top; the housing 100 is provided with a mass 110 and a conductor plate 120 inside; the mass block 110 is arranged on the top cover through a swinging rod 130 and can swing in any direction; the conductor plate 120 is located below the mass 110 and is fixedly connected to the housing 100.

In a preferred embodiment, the conductive plate 120 has a hemispherical shape with an opening facing upwards; coaxial conical holes are formed in the mass block 110 corresponding to the conductor plates 120; the tapered hole has a relatively large diameter near one end of the conductor plate 120.

Preferably, a pull rod 200 is arranged in the conical hole; one end of the pull rod 200 is arranged on the top cover, and the other end is provided with a steel magnet assembly 210; the top cover is connected with the pull rod 200 through a first universal shaft 220, and the first universal shaft 220 is positioned at the center of the top cover; the end of the steel magnetic component 210 away from the pull rod 200 is arc-shaped and corresponds to the conductive plate 120, and a gap is left between the end and the conductive plate 120.

Preferably, the steel magnet assembly 210 includes a mounting bracket and a magnetic steel; the magnetic steel is arranged on the mounting frame; the mounting bracket is fixedly mounted at the end of the pull rod 200.

In a preferred embodiment, the number of oscillating levers 130 is three; the three swing rods 130 are uniformly distributed around the pull rod 200, and two ends of the three swing rods are respectively connected with the shell 100 and the mass block 110 through second universal joints 131; it is ensured that the mass 110 oscillates in any direction.

Preferably, the mass 110 comprises a multi-layer mass plate; the multilayer mass plates are connected through bolts; the bolts are uniformly distributed around the tapered holes; the mass plate is provided with a mounting hole matched with the corresponding bolt; the mounting hole is a through hole, and the bolt is fixed and clamped through the matched nut after passing through the mounting hole.

The principles and embodiments of the present application are explained herein using specific examples, which are provided only to help understand the method and the core idea of the present application. The foregoing is only a preferred embodiment of the present application, and it should be noted that there are objectively infinite specific structures due to the limited character expressions, and it will be apparent to those skilled in the art that a plurality of modifications, decorations or changes may be made without departing from the principle of the present invention, and the technical features described above may be combined in a suitable manner; such modifications, variations, combinations, or adaptations of the invention in other contexts without modification may be viewed as within the scope of the present application.

Claims

1. An eddy current damper, characterized by comprising a housing (100); a mass block (110) and a conductor plate (120) are arranged inside the shell (100); the mass (110) is mounted on the top of the shell (100) through a swinging rod (130); the conductor plate (120) is positioned below the mass block (110) and is hemispherical; the mass block (110) is provided with a conical hole which is coaxial with the conductor plate (120); a pull rod (200) is arranged in the conical hole, and the inner diameter of one end, close to the conductor plate (120), of the pull rod is relatively large; one end of the pull rod (200) is movably connected with the shell (100), and a magnetic steel component (210) matched with the conductor plate (120) is installed at one end of the pull rod.

2. Eddy current damper according to claim 1, characterised in that the connection between the tie rod (200) and the housing (100) is via a first cardan shaft (220); the first universal shaft (220) is arranged at the top of the shell (100) and is positioned on the axis of the conical hole.

3. Eddy current damper according to claim 1, characterised in that the number of oscillating levers (130) is three; the three swing rods (130) are uniformly distributed around the pull rod (200), and two ends of the three swing rods are respectively connected with the shell (100) and the mass block (110) through second universal joints (131).

4. The eddy current damper according to claim 1, wherein the magnetic steel assembly (210) comprises a mount and magnetic steel; the magnetic steel is arranged on the mounting rack; the mounting rack is fixedly arranged at the end part of the pull rod (200).

5. The eddy current damper according to claim 1, characterized in that the mass (110) comprises a plurality of layers of mass plates; the multiple layers of the mass plates are connected through bolts; the bolts are uniformly distributed around the tapered holes.