阅读说明：本技术 一种连梁剪切位移放大型电涡流阻尼器 (A kind of coupling beam shear displacemant scale-up version eddy current damper ) 是由 付兴 李宏男 李钢 张兴恒 董志骞 杜文龙 于 2019-09-20 设计创作，主要内容包括：本发明公开了一种连梁剪切位移放大型电涡流阻尼器,属于结构振动控制技术领域。所述的连梁剪切位移放大型电涡流阻尼器包括刚性杆、转动轴、销柱、销钉、杠杆、螺杆、螺纹套筒、铜片、永磁体组件、钢结构组件、滚珠、滚珠托和外壳。当振动发生时,阻尼器两侧的连梁发生相对竖向位移,此时两个杠杆会发生相对刚性杆的上下移动,这个移动会导致螺杆以及铜片的转动；铜片在磁场中转动,其内部会产生感应电动势,从而在铜片中产生电涡流。电涡流效应会产生一个阻碍铜片转动的阻尼力。同时,由电涡流的热效应可知,振动能量将转化为热能,从而减小结构振动。本发明设计合理,构造简单,且安装方便,不影响外部造型,具有广泛的应用前景。(The invention discloses a kind of coupling beam shear displacemant scale-up version eddy current dampers, belong to structural vibration control technology field.The coupling beam shear displacemant scale-up version eddy current damper includes rigid rod, rotation axis, pin, pin, lever, screw rod, screw shell, copper sheet, permanent magnet assembly, steel structure assembly, ball, ball support and shell.When vibrating generation, relative vertical displacement occurs for the coupling beam of damper two sides, and moving up and down for relative stiffness bar can occur for two levers at this time, this moves the rotation that will lead to screw rod and copper sheet；Copper sheet rotates in magnetic field, inside can generate induced electromotive force, to generate current vortex in copper sheet.Eddy current effect can generate the damping force for hindering copper sheet rotation.Meanwhile by the fuel factor of current vortex it is found that vibrational energy translates into thermal energy, to reduce structural vibration.The present invention has rational design, simple structure, and easy for installation, does not influence external styling, is with a wide range of applications.)

1. a kind of coupling beam shear displacemant scale-up version eddy current damper, which is characterized in that the coupling beam shear displacemant scale-up version Eddy current damper includes rigid rod (1), rotation axis (2), pin (3), pin (4), lever (5), screw rod (6), screw shell (7), copper sheet (8), permanent magnet assembly (9), steel structure assembly (10), ball (11), ball support (12) and shell (13)；

The shell (13) is hollow rectangular parallelepiped structure open at one end；The steel structure assembly (10) is cuboid knot Structure, middle part are provided with through-hole, and the inside of steel structure assembly (10) constructs four for installing permanent magnet assembly by multiple steel plates (9) space structure；The inside of steel structure assembly (10) insertion shell (13) allows to produce therebetween there are gap Raw relative movement；The steel structure assembly (10) and shell (13) is separately mounted in two coupling beams；

The section of the rigid rod (1) is rectangle, and the through-hole that rigid rod (1) passes through steel structure assembly (10) is mounted on shell (13) on inner wall, rigid rod (1) has just connect with shell (13), and the longitudinal direction of rigid rod (1) is vertical direction；The lever (5) there are two altogether, an end of lever (5) is provided with slide opening A (501), another end of lever (5) is provided with screw rod mounting hole (502), slide opening B (503) are provided in the middle part of lever (5)；Pin (3) passes through the slide opening A (501) of lever (5) for two levers (5) Rigid rod (1) two sides are mounted on, two rotation axis (2) in steel structure assembly (10) are each passed through the slide opening B of lever (5) (503)；

There are four the ball support (12) is total, it is separately mounted on the inside steel plate outer surface of steel structure assembly (10)；It is described Screw rod (6) altogether there are two, be vertically mounted in screw rod mounting hole (502) by pin (4), the both ends of screw rod (6) are successively worn Cross the inside steel plate of ball support (12) and steel structure assembly (10)；There are four the screw shell (7) is total, closed end crosses steel The inside steel plate of construction package (10), is located at the shell of steel structure assembly (10), and four screw shells (7) pass through screw thread pair respectively It is mounted on the end of screw rod (6), the closed end of screw shell (7) and open end are respectively mounted multiple balls (11), the rolling of closed end Pearl (11) contacts with the inner surface of outer cover of steel structure assembly (10), and the ball (11) of open end is limited in spiral shell by ball support (12) Around bar (6), screw shell (7) is freely rotated between steel structure assembly (10) and ball support (12)；The copper sheet (8) is altogether There are four, it is separately mounted on the outside of screw shell (7), copper sheet (8) is vertical with the axis of screw shell (7)；The permanent magnet Component (9) shares four groups, is separately mounted in the space that the internal steel plate of steel structure assembly (10) is formed；Every group of permanent magnet assembly (9) totally two permanent magnets, are located at copper sheet (8) two sides, the magnetic induction line between permanent magnet assembly (9) is vertical with copper sheet (8).

2. a kind of coupling beam shear displacemant scale-up version eddy current damper according to claim 1, which is characterized in that described The center of screw rod mounting hole (502) and the centre distance of slide opening B (503) are R₁, the center and slide opening B (503) of slide opening A (501) Centre distance be R₂, R₁> R₂。

Technical field

The invention belongs to structural vibration control technology fields more particularly to a kind of coupling beam shear displacemant scale-up version current vortex to hinder Buddhist nun's device.

Background technique

Coupling beam damper is a kind of by absorbing the vibrational energy of earthquake to reduce the device of building destruction, in shear wall It is widely used in building.When building is by geological process, it is desirable that coupling beam part consumes impact of the external force to building Energy reduces the vibratory response of coupling beam using damper, the sheared destruction degree of coupling beam significantly under mitigation geological process.However, There are still many deficiencies for existing coupling beam damper, and e.g., energy efficiency is low when amplitude is smaller, consume the ability of vibratory impulse energy It is poor, and these deficiencies greatly affected the safety of building and the security of the lives and property of people.For existing product Deficiency, the present invention is based on eddy current effect energy consumptions, propose a kind of coupling beam shear displacemant scale-up version eddy current damper.

Summary of the invention

The present invention is directed to the problem for consuming the ability difference of vibratory impulse energy in the prior art, and the present invention proposes a kind of energy consumption High-efficient coupling beam shear displacemant scale-up version eddy current damper.

To achieve the above object, the technical scheme adopted by the invention is that:

A kind of coupling beam shear displacemant scale-up version eddy current damper, the coupling beam shear displacemant scale-up version eddy-current damping Device includes rigid rod 1, rotation axis 2, pin 3, pin 4, lever 5, screw rod 6, screw shell 7, copper sheet 8, permanent magnet assembly 9, steel Construction package 10, ball 11, ball support 12 and shell 13.The shell 13 is hollow rectangular parallelepiped structure open at one end；Institute The steel structure assembly 10 stated is cuboid structure, and middle part is provided with through-hole, and the inside of steel structure assembly 10 passes through multiple steel plate structures Four are built out for installing the space structure of permanent magnet assembly 9；The steel structure assembly 10 is inserted into the inside of shell 13, the two Between there are gap, allow to generate relative movement；The steel structure assembly 10 and shell 13 is separately mounted in two coupling beams；

The section of the rigid rod 1 is rectangle, and the through-hole that rigid rod 1 passes through steel structure assembly 10 is mounted in shell 13 On wall surface, rigid rod 1 has just connect with shell 13, and the longitudinal direction of rigid rod 1 is vertical direction；There are two the lever 5 is total, thick stick One end of bar 5 is provided with slide opening A501, another end of lever 5 is provided with screw rod mounting hole 502, and the middle part of lever 5 is provided with Slide opening B503；Two levers 5 are mounted on 1 two sides of rigid rod by the slide opening A501 that pin 3 passes through lever 5, in steel structure assembly 10 Two rotation axis 2 be each passed through the slide opening B503 of lever 5；

There are four the ball support 12 is total, it is separately mounted on the inside steel plate outer surface of steel structure assembly 10；It is described Screw rod 6 altogether there are two, be vertically mounted in screw rod mounting hole 502 by pin 4, the both ends of screw rod 6 sequentially pass through ball support 12 and steel structure assembly 10 inside steel plate；There are four the screw shell 7 is total, closed end crosses the interior of steel structure assembly 10 Portion's steel plate, positioned at the shell of steel structure assembly 10, four screw shells 7 are mounted on the end of screw rod 6, spiral shell by screw thread pair respectively The closed end of line sleeve 7 and open end are respectively mounted multiple balls 11, in the ball 11 of closed end and the shell of steel structure assembly 10 The ball 11 of surface contact, open end is limited in around screw rod 6 by ball support 12, and screw shell 7 is in 10 He of steel structure assembly It is freely rotated between ball support 12；There are four the copper sheet 8 is total, it is separately mounted to 7 outside of screw shell, copper sheet 8 and screw thread The axis of sleeve 7 is vertical；The permanent magnet assembly 9 shares four groups, is separately mounted to 10 inside steel plate of steel structure assembly and is formed Space in；Every group of permanent magnet assembly 9 totally two permanent magnets, are located at 8 two sides of copper sheet, the magnetic induction line between permanent magnet assembly 9 It is vertical with copper sheet 8.

Further, the centre distance of the center of the screw rod mounting hole 502 and slide opening B503 are R₁, slide opening A501's The centre distance of center and slide opening B503 are R₂, R₁> R₂。

The working principle of the invention:

When vibrating generation, relative vertical displacement occurs for the coupling beam of damper two sides, and two levers 5 can occur relatively at this time Rigid rod 1 moves up and down, this moves the rotation that will lead to screw rod 6 and copper sheet 8；Copper sheet rotates in magnetic field, inside Induced electromotive force can be generated, to generate current vortex in copper sheet.Eddy current effect can generate the resistance for hindering copper sheet rotation Buddhist nun's power.Meanwhile by the fuel factor of current vortex it is found that vibrational energy translates into thermal energy, to reduce structural vibration.

Particularly, lever can amplify coupling beam two sides relative vertical displacement, amplification factor R1/R2, and R1 is got over R2 ratio Greatly, amplification effect is more obvious, and energy efficiency is higher.In addition, screw pitch is set as d, then the every vertical displacement d of screw rod, copper sheet will rotate One week, screw pitch can cause the copper sheet of larger angle to rotate with respect to screw rod vertical displacement very little, lesser screw rod vertical displacement, copper sheet It rotates the eddy-current damping power formed and one big torque is formed to rotary shaft, this torque is converted to one by screw pair again The ratio of the damping force of very big obstruction screw rod vertical motion, screw displacement and screw pitch is bigger, and amplification effect is better, damper because This obtains very big damped coefficient.

The beneficial effects of the present invention are:

(1；A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention, by the vertical relative shear position of coupling beam Transfer, which turns to the rotation of round copper sheet and generates current vortex, consumes energy, and is put coupling beam shear displacemant using lever and screw-driven Greatly, lesser shear displacemant can cause copper sheet by a relatively large margin to rotate, and energy efficiency greatly improves；

(2) a kind of coupling beam shear displacemant scale-up version eddy current damper of the invention, by adjusting lever ratio, permanent magnet Magnetic field strength, the distance of the thickness of copper sheet, the radius of copper sheet, copper sheet to permanent magnet, the adjusting of damping parameter may be implemented；

(3) a kind of coupling beam shear displacemant scale-up version eddy current damper of the invention is provided successive using permanent magnet Magnetic field sources, be not necessarily to outside resources, effectiveness in vibration suppression steady in a long-term can be generated；

(4) a kind of coupling beam shear displacemant scale-up version eddy current damper of the invention uses permeability magnetic material, can be effective The leakage field for avoiding magnetic circuit, not only increases the efficiency of eddy-current damping, and avoids the influence to various components around；

(5) a kind of coupling beam shear displacemant scale-up version eddy current damper of the invention designs reasonable, simple structure, installation It is convenient.

(6) present invention can amplify coupling beam two sides relative vertical displacement, and amplification factor R1/R2, R1 and R2 ratio are bigger, Amplification effect is more obvious, and energy efficiency is higher.

(7) screw pitch of screw rod is set as d in the present invention, then the every vertical displacement d of screw rod, copper sheet will rotate a circle, screw pitch phase To screw rod vertical displacement very little, lesser screw rod vertical displacement can cause the copper sheet of larger angle to rotate, and copper sheet, which rotates, to be formed Eddy-current damping power forms a big torque to rotary shaft, this torque is converted to a very big obstruction by screw pair again The ratio of the damping force of screw rod vertical motion, screw displacement and screw pitch is bigger, and amplification effect is better, therefore damper obtains very Big damped coefficient.

Detailed description of the invention

Fig. 1 is a kind of A-A sectional view of coupling beam shear displacemant scale-up version eddy current damper of the present invention；

Fig. 2 is a kind of B-B sectional view of coupling beam shear displacemant scale-up version eddy current damper of the present invention；

Fig. 3 is a kind of C-C sectional view of coupling beam shear displacemant scale-up version eddy current damper of the present invention；

Fig. 4 is a kind of scheme of installation of coupling beam shear displacemant scale-up version eddy current damper of the present invention；

Fig. 5 is the structural schematic diagram of lever of the present invention；

Fig. 6 is the structural schematic diagram of lever of the present invention.

In figure: 1 rigid rod；2 rotation axis；3 pins；4 pins；5 levers；6 screw rods；7 screw shells；8 copper sheets；9 permanent magnets Component；10 steel structure assemblies；11 balls；12 ball supports；13 shells；501 slide opening A；502 mounting holes；503 slide opening B.

Specific embodiment

In order to make the invention's purpose, features and advantages of the invention more obvious and easy to understand, it referring to the drawings and ties Specific embodiment is closed to further describe the present invention, to enable those skilled in the art's refer to the instruction text real accordingly It applies, the scope of the present invention is not limited to the specific embodiment.Obviously, the embodiments described below are only the present invention A part of the embodiment, and not all embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not doing All other embodiment obtained under the premise of creative work out, shall fall within the protection scope of the present invention.

Coupling beam shear displacemant scale-up version eddy current damper as shown in Figure 1, Figure 2, Figure 3 shows include rigid rod 1, rotation axis 2, Pin 3, pin 4, lever 5, screw rod 6, screw shell 7, copper sheet 8, permanent magnet assembly 9, steel structure assembly 10, ball 11, ball Support 12 and shell 13.The shell 13 is hollow rectangular parallelepiped structure open at one end；The steel structure assembly 10 is rectangular Body structure, middle part are provided with through-hole, and the inside of steel structure assembly 10 constructs four for installing permanent magnet by multiple steel plates The space structure of component 9；The inside that the steel structure assembly 10 is inserted into shell 13 allows to generate therebetween there are gap Relative movement；The steel structure assembly 10 and shell 13 is separately mounted in two coupling beams；

The section of the rigid rod 1 is rectangle, and the through-hole that rigid rod 1 passes through steel structure assembly 10 is mounted in shell 13 On wall surface, rigid rod 1 has just connect with shell 13, and the longitudinal direction of rigid rod 1 is vertical direction；

Lever 5 as shown in Figure 5, Figure 6 altogether there are two, an end of lever 5 is provided with slide opening A501, lever 5 it is another A end is provided with screw rod mounting hole 502, and the middle part of lever 5 is provided with slide opening B503；Pin 3 passes through the slide opening A501 of lever 5 for two A lever 5 is mounted on 1 two sides of rigid rod, and two rotation axis 2 in steel structure assembly 10 are each passed through the slide opening B503 of lever 5；

There are four the ball support 12 is total, it is separately mounted on the inside steel plate outer surface of steel structure assembly 10；It is described Screw rod 6 altogether there are two, be vertically mounted in screw rod mounting hole 502 by pin 4, the both ends of screw rod 6 sequentially pass through ball support 12 and steel structure assembly 10 inside steel plate；There are four the screw shell 7 is total, closed end crosses the interior of steel structure assembly 10 Portion's steel plate, positioned at the shell of steel structure assembly 10, four screw shells 7 are mounted on the end of screw rod 6, spiral shell by screw thread pair respectively The closed end of line sleeve 7 and open end are respectively mounted multiple balls 11, in the ball 11 of closed end and the shell of steel structure assembly 10 The ball 11 of surface contact, open end is limited in around screw rod 6 by ball support 12, and screw shell 7 is in 10 He of steel structure assembly It is freely rotated between ball support 12；There are four the copper sheet 8 is total, it is separately mounted to 7 outside of screw shell, copper sheet 8 and screw thread The axis of sleeve 7 is vertical；The permanent magnet assembly 9 shares four groups, is separately mounted to 10 inside steel plate of steel structure assembly and is formed Space in；Every group of permanent magnet assembly 9 totally two permanent magnets, are located at 8 two sides of copper sheet, the magnetic induction line between permanent magnet assembly 9 It is vertical with copper sheet 8.

Further, the centre distance of the center of the screw rod mounting hole 502 and slide opening B503 are R₁, slide opening A501's The centre distance of center and slide opening B503 are R₂, R₁> R₂。

The working principle of the invention:

When vibrating generation, relative vertical displacement occurs for the coupling beam of damper two sides, and two levers 5 can occur relatively at this time Rigid rod 1 moves up and down, this moves the rotation that will lead to screw rod 6 and copper sheet 8；Copper sheet rotates in magnetic field, inside Induced electromotive force can be generated, to generate current vortex in copper sheet.Eddy current effect can generate the resistance for hindering copper sheet rotation Buddhist nun's power.Meanwhile by the fuel factor of current vortex it is found that vibrational energy translates into thermal energy, to reduce structural vibration.

Particularly, lever can amplify coupling beam two sides relative vertical displacement, amplification factor R1/R2, and R1 is got over R2 ratio Greatly, amplification effect is more obvious, and energy efficiency is higher.In addition, screw pitch is set as d, then the every vertical displacement d of screw rod, copper sheet will rotate One week, screw pitch can cause the copper sheet of larger angle to rotate with respect to screw rod vertical displacement very little, lesser screw rod vertical displacement, copper sheet It rotates the eddy-current damping power formed and one big torque is formed to rotary shaft, this torque is converted to one by screw pair again The ratio of the damping force of very big obstruction screw rod vertical motion, screw displacement and screw pitch is bigger, and amplification effect is better, damper because This obtains very big damped coefficient.

A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention turns the vertical relative shear displacement of coupling beam It turns to the rotation of round copper sheet and generates current vortex and consume energy, amplified coupling beam shear displacemant using lever and screw-driven, Lesser shear displacemant can cause copper sheet by a relatively large margin to rotate, and energy efficiency greatly improves；

A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention, by adjusting lever ratio, permanent magnet The adjusting of damping parameter may be implemented in the distance of magnetic field strength, the thickness of copper sheet, the radius of copper sheet, copper sheet to permanent magnet；

A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention provides continuously magnetic using permanent magnet Field source is not necessarily to outside resources, can generate effectiveness in vibration suppression steady in a long-term；

A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention uses permeability magnetic material, can effectively keep away The leakage field for exempting from magnetic circuit, not only increases the efficiency of eddy-current damping, and avoids the influence to various components around；

A kind of coupling beam shear displacemant scale-up version eddy current damper of the invention designs reasonable, simple structure, installation side Just.

The present invention can amplify coupling beam two sides relative vertical displacement, and amplification factor R1/R2, R1 and R2 ratio are bigger, put Big effect is more obvious, and energy efficiency is higher.

The screw pitch of screw rod is set as d in the present invention, then the every vertical displacement d of screw rod, copper sheet will rotate a circle, and screw pitch is with respect to spiral shell Bar vertical displacement very little, lesser screw rod vertical displacement can cause the copper sheet of larger angle to rotate, and copper sheet rotates the electric whirlpool to be formed Flow damping power forms a big torque to rotary shaft, this torque is converted to a very big obstruction screw rod by screw pair again The ratio of the damping force of vertical motion, screw displacement and screw pitch is bigger, and amplification effect is better, therefore damper obtains very big Damped coefficient.