CN213541139U - Electromagnetic damper - Google Patents
Electromagnetic damper Download PDFInfo
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- CN213541139U CN213541139U CN202022267957.6U CN202022267957U CN213541139U CN 213541139 U CN213541139 U CN 213541139U CN 202022267957 U CN202022267957 U CN 202022267957U CN 213541139 U CN213541139 U CN 213541139U
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- ball screw
- outer barrel
- ring
- guide ring
- heat dissipation
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 42
- 229910052802 copper Inorganic materials 0.000 claims abstract description 42
- 239000010949 copper Substances 0.000 claims abstract description 42
- 230000017525 heat dissipation Effects 0.000 claims abstract description 25
- 238000005192 partition Methods 0.000 claims description 11
- 239000002184 metal Substances 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 230000009286 beneficial effect Effects 0.000 abstract 1
- 238000013016 damping Methods 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 230000006698 induction Effects 0.000 description 5
- 239000012530 fluid Substances 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 230000000149 penetrating effect Effects 0.000 description 2
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005672 electromagnetic field Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
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Abstract
本实用新型涉及阻尼器技术领域，公开了一种电磁阻尼器，包括外筒、永磁体、滚珠丝杠、滚珠螺母、铜导圈和散热组件；两块所述永磁体上下相对安装于外筒的内壁，所述滚珠丝杠位于外筒中，并位于两块永磁体之间，所述滚珠丝杠的一端穿过外筒后向外延伸，所述铜导圈位于外筒中，其套设于滚珠丝杠的外周，并与滚珠螺母连接，所述散热组件的至少部分与铜导圈连接，所述散热组件的至少部分固定于外筒的外侧。其有益效果在于：本阻尼器整体结构简单，产生的热量可通过散热组件耗散。
The utility model relates to the technical field of dampers, and discloses an electromagnetic damper, which comprises an outer cylinder, a permanent magnet, a ball screw, a ball nut, a copper guide ring and a heat dissipation component; The inner wall of the ball screw is located in the outer cylinder and between the two permanent magnets. One end of the ball screw passes through the outer cylinder and extends outwards. The copper guide ring is located in the outer cylinder and is sleeved on the outer cylinder. The outer circumference of the ball screw is connected with the ball nut, at least part of the heat dissipation assembly is connected with the copper guide ring, and at least part of the heat dissipation assembly is fixed on the outer side of the outer cylinder. The beneficial effect is that the overall structure of the damper is simple, and the generated heat can be dissipated through the heat dissipation component.
Description
Technical Field
The utility model relates to a attenuator technical field, concretely relates to electromagnetic damper.
Background
Civil engineering structures are liable to generate large-amplitude vibration under the action of external stimuli such as earthquakes, strong winds and the like, and domestic and foreign scholars have conducted extensive studies to alleviate or suppress the response caused by the structures, and have proposed a number of structural control techniques, among which dampers based on passive vibration reduction techniques are widely used. The basic principle of the electromagnetic damping force generation is that a copper guide ring in a magnetic field performs cutting magnetic induction line movement, the copper guide ring can generate induction current, and the copper guide ring generating the current can generate ampere damping force in the magnetic field, so that the movement of the conductor guide ring is inhibited, the device is connected with a vibration structure, and the effects of structural vibration reduction and energy consumption can be achieved.
For example, the patent application No. 201910052891.8, named as rotary magnetorheological damper, utilizes the magnetorheological fluid to pass through a small hole on a piston or a gap between the piston and a cylinder to generate a damping force, so as to achieve a damping effect, but the magnetorheological fluid is easy to consume and leak oil, and the damping force of the magnetorheological fluid is reduced with time.
Like patent application number 202010346905.X, the patent name is an eddy current inertial mass damper, becomes the rotary motion of ball with the linear motion of slide bar, drives interior rotary drum and rotates together, and magnetic conduction board forms the electric vortex, produces the new magnetic field opposite with former magnetic field, produces damping force, reaches the damping effect, but its kinetic energy converts directly to the transmission of shell through the magnetic conduction board after heat energy into, and the heat dissipation problem is waited for solve urgently.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the deficiencies of the prior art, providing a simple structure, reasonable, effectively solve the electromagnetic damper of heat energy dissipation problem.
The purpose of the utility model is realized through the following technical scheme: an electromagnetic damper comprises an outer cylinder, a permanent magnet, a ball screw, a ball nut, a copper guide ring and a heat dissipation assembly; the two permanent magnets are oppositely arranged on the inner wall of the outer barrel from top to bottom, the ball screw is located in the outer barrel and located between the two permanent magnets, one end of the ball screw penetrates through the outer barrel and then extends outwards, the copper guide ring is located in the outer barrel, the copper guide ring is sleeved on the periphery of the ball screw and connected with the ball nut, at least part of the heat dissipation assembly is connected with the copper guide ring, and at least part of the heat dissipation assembly is fixed on the outer side of the outer barrel.
Further, the heat dissipation assembly comprises a metal guide ring, a lead and a variable resistor; the metal guide ring comprises an inner ring and an outer ring, the outer ring is sleeved on the periphery of the inner ring, two open ends of the copper guide ring are respectively contacted with the inner ring and the outer ring, the variable resistor is fixed on the outer side of the outer barrel, and the inner ring and the outer ring are both connected with the variable resistor through wires.
Further, the copper guide ring comprises an annular part, a frame part and a guide sheet; the annular part is sleeved on the periphery of the ball screw, the two frame body parts are oppositely arranged along the axial direction of the ball screw and are respectively connected with two ends of the annular part, the ball nut is connected with the two frame body parts, the guide pieces are respectively installed at one ends, far away from the annular part, of the frame body parts, and the guide pieces are connected with the heat dissipation assembly.
Furthermore, the device also comprises an insulating support, wherein one end of the insulating support is connected with the ball nut, and the other end of the insulating support is connected with the corresponding frame body part.
Further, the device also comprises a clapboard; the partition plate is positioned in the outer barrel, an inner cavity of the outer barrel is divided into a first cavity and a second cavity, the ball screw is positioned in the first cavity, one end of the ball screw penetrates through the outer barrel and then extends outwards, and the other end of the ball screw penetrates through the partition plate and then is positioned in the second cavity.
Further, the device also comprises a positioning support; a side face, close to the first cavity, of the partition plate is provided with a first annular slide way, the first annular slide way is located on the periphery of the ball screw, the outer barrel is provided with a second annular slide way opposite to the first annular slide way, the positioning supports are located on two sides of the ball nut respectively, one end of each positioning support is connected with the ball nut, and the other end of each positioning support is located in the corresponding first annular slide way or the corresponding second annular slide way.
Further, the device also comprises a first ear plate and a second ear plate; the first lug plate is arranged at one end of the ball screw, which extends out of the outer barrel, and the second lug plate is arranged at the other end face of the outer barrel and is opposite to the first lug plate.
Further, the outer barrel comprises a barrel body, a first cover plate and a second cover plate; the first cover plate and the second cover plate are respectively sealed at two ends of the cylinder body, the ball screw penetrates through the first cover plate and then extends outwards, and the second lug plate is installed on the second cover plate.
Compared with the prior art, the utility model have following advantage:
1. the utility model discloses in set up two relative permanent magnets in the urceolus, have characteristics such as noiselessness, contactless transmission power, no fatigue deformation, reliability height, long-lived, assembly are simple. The copper guide ring connected with the ball nut is sleeved on the periphery of the ball screw, the rotation of the copper guide ring in a magnetic field is utilized to generate a non-contact ampere damping moment, the vibration of a building structure can be restrained, meanwhile, the copper guide ring can also output current to a heat dissipation assembly, the heat dissipation problem inside the outer barrel is solved, and the rotating speed of the copper guide ring can be adjusted.
2. The utility model provides a radiator unit includes metal guide ring, wire and varistor, and varistor installs in the urceolus outside, through designing a novel power consumption mode, turns into the heat energy of resistance with outside excitation, and varistor cooperatees with the copper guide ring, turns into heat energy with the electric energy, effectively solves heat energy dissipation problem. The variable resistor can also adjust the current so as to adjust the ampere damping force, the damping coefficient is more convenient to adjust, and variable damping is realized.
Drawings
The accompanying drawings, which form a part of the present application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
figure 1 shows a cross-sectional elevation view of an electromagnetic damper according to the present invention;
figure 2 shows a cross-sectional side view of an electromagnetic damper according to the present invention;
fig. 3 shows a schematic structural diagram of a copper guide ring and a heat dissipation assembly according to the present invention;
fig. 4 shows a perspective view of an electromagnetic damper according to the present invention;
in the figure, 1 is an outer cylinder; 2 is a permanent magnet; 3 is a ball screw; 4 is a ball nut; 5 is a copper guide ring; 6 is a metal guide ring; 7 is a lead; 8 is a variable resistor; 9 is an annular part; 10 is a frame body part; 11 is a guide sheet; 12 is an insulating support; 13 is a clapboard; 14 is a first chamber; 15 is a second chamber; 16 is a positioning support; 17 is a first ear plate; 18 is a second ear panel; 19 is a cylinder body; 20 is a first cover plate; 21 is a second cover plate; 22 is an inner ring; and 23 is an outer ring.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
The electromagnetic damper shown in fig. 1 and 2 comprises an outer cylinder 1, a permanent magnet 2, a ball screw 3, a ball nut 4, a copper guide ring 5 and a heat dissipation assembly; the two permanent magnets 2 are oppositely arranged on the inner wall of the outer barrel 1 from top to bottom, the ball screw 3 is located in the outer barrel 1 and located between the two permanent magnets 2, one end of the ball screw 3 penetrates through the outer barrel 1 and then extends outwards, the copper guide ring 5 is located in the outer barrel 1, the periphery of the ball screw 3 is sleeved with the copper guide ring and connected with the ball nut 4, at least part of the heat dissipation assembly is connected with the copper guide ring 5, and at least part of the heat dissipation assembly is fixed on the outer side of the outer barrel 1. In two permanent magnets 2, the N utmost point of one of them is inwards, and the S utmost point of another piece is inwards, promptly: with the N-pole of one block facing the S-pole of the other block. When building structure took place to vibrate, ball screw followed building structure reciprocating motion to drive ball nut and rotate, copper guide ring 5 followed ball nut 4 synchronous rotation, and cutting magnetic induction line produces induced-current in copper guide ring 5, under the effect in magnetic field, produces ampere damping torque reverse action and ball screw 3, restraines ball screw 3's reciprocating stroke, thereby restraines building structure vibration. And then the heat is transferred to the heat dissipation assembly through the copper guide ring 5, so that the problem of heat dissipation is effectively solved.
As shown in fig. 2 and 3, the heat dissipation assembly includes a metal guide ring 6, a lead wire 7 and a variable resistor 8; the metal guide ring 6 comprises an inner ring 22 and an outer ring 23, the outer ring 23 is sleeved on the periphery of the inner ring 22, the two guide vanes 11 of the copper guide ring 55 are respectively contacted with the inner ring 22 and the outer ring 23, the variable resistor 8 is fixed on the outer side of the outer cylinder 1, and the inner ring 22 and the outer ring 23 are both connected with the variable resistor 8 through a lead 7. The inner ring 22 and the outer ring 23 are fixed on the partition plate of the first chamber, and the inner ring 22 and the outer ring 23 are not in contact with each other. Two guide vanes of the copper guide ring 5 are correspondingly contacted with the inner ring 22 and the outer ring 23 respectively, and in the rotation process of the copper guide ring 5, the two guide vanes 11 are contacted with the inner ring 22 and the outer ring 23 respectively, so that the induced current is transmitted to the variable resistor through a wire. By adopting the variable resistor, on one hand, electric energy can be converted into heat energy, and on the other hand, the variable resistor can also adjust the current so as to adjust the ampere damping force and realize variable damping.
As shown in fig. 3, the copper lead ring 5 includes an annular portion 9, a frame portion 10, and a lead piece 11; the annular portion 9 is sleeved on the periphery of the ball screw 3, the two frame portions 10 are oppositely arranged along the axial direction of the ball screw 3 and are respectively connected with two ends of the annular portion 9, the ball nut 4 is connected with the two frame portions 10, the guide vanes 11 are respectively installed at one ends, far away from the annular portion 9, of the frame portions 10, and the two guide vanes 11 are respectively connected with an inner ring 22 and an outer ring 23 in the heat dissipation assembly. Through the arrangement, the copper guide ring 5 is sleeved on the periphery of the ball screw 3, is positioned in a magnetic field formed by the two permanent magnets 2, is connected with the ball nut 4, and synchronously rotates along with the ball nut 4 to cut the magnetic induction line.
And the insulating support 12 is further included, one end of the insulating support 12 is connected with the ball nut 4, and the other end of the insulating support 12 is connected with the corresponding frame body part 10. The insulating support 12 connects the housing portion 10 and the ball nut 4. The insulating support 12 is made of an insulating material and has no influence on an electromagnetic field.
Also comprises a baffle plate 13; the partition plate 13 is positioned in the outer barrel 1 and divides the inner cavity of the outer barrel 1 into a first chamber 14 and a second chamber 15, the ball screw 3 is positioned in the first chamber 14, one end of the ball screw 3 extends outwards after penetrating through the outer barrel 1, and the other end of the ball screw 3 is positioned in the second chamber 15 after penetrating through the partition plate 13. The partition plate 13 is arranged to reasonably utilize the space in the outer cylinder, so that the positioning support 16 and the metal guide ring 6 are convenient to mount.
Also includes a positioning support 16; a side face, close to the first chamber 14, of the partition plate 13 is provided with a first annular slide way, the first annular slide way is located at the periphery of the ball screw 3, the outer cylinder is provided with a second annular slide way opposite to the first annular slide way, the positioning supports 16 are respectively located on two sides of the ball nut 4, two ends of the positioning supports 16 are connected with the ball nut, and the other ends of the positioning supports are located in the corresponding first annular slide way or the second annular slide way. The positioning support 16 follows the ball nut 4 to rotate, and the other end thereof slides in the first annular sliding groove or the second annular sliding way. The positioning support 16 serves to limit the horizontal movement of the ball nut so that the ball nut can only rotate.
As shown in fig. 2 and 4, further comprises a first ear plate 17 and a second ear plate 18; the first lug plate 17 is mounted at one end of the ball screw 3 extending out of the outer cylinder 1, and the second lug plate 18 is mounted at the other end face of the outer cylinder 1 and is arranged opposite to the first lug plate 17. The first lug plate 17 and the second lug plate 18 are used for connecting with a building structure, and the first lug plate is directly connected with the ball screw 3 so that the ball screw 3 can move back and forth under the driving of the building structure.
The outer cylinder 1 comprises a cylinder 19, a first cover plate 20 and a second cover plate 21; the first cover plate 20 and the second cover plate 21 are respectively sealed at two ends of the cylinder 19, the ball screw 3 passes through the first cover plate 20 and then extends outwards, and the second lug plate 18 is mounted on the second cover plate 21.
When in specific use:
when the building structure vibrates, the ball screw 3 reciprocates to drive the ball nut 4 to rotate, the insulating support 12 and the copper guide ring 5 only can do rotary motion, the copper guide ring 5 cuts a magnetic induction line generated by the permanent magnet 2, so that induced current is formed in the copper guide ring 5, the copper guide ring 5 generates ampere damping torque under the action of a magnetic field, and the ampere damping torque is amplified by the ball nut 4 to form axial ampere damping force to inhibit the building structure from vibrating. The induced current in the copper conducting ring 5 transmits the current to the variable resistor 8 through the metal conducting ring 6 and the conducting wire 7, and the variable resistor 8 generates heat and consumes energy. Because the resistance size is variable, this device has realized the effect of variable damping.
The above-mentioned specific implementation is the preferred embodiment of the present invention, can not be right the utility model discloses the limit, any other does not deviate from the technical scheme of the utility model and the change or other equivalent replacement modes of doing all contain within the scope of protection of the utility model.
Claims (8)
1. An electromagnetic damper, characterized by: the device comprises an outer barrel, a permanent magnet, a ball screw, a ball nut, a copper guide ring and a heat dissipation assembly; the two permanent magnets are oppositely arranged on the inner wall of the outer barrel from top to bottom, the ball screw is located in the outer barrel and located between the two permanent magnets, one end of the ball screw penetrates through the outer barrel and then extends outwards, the copper guide ring is located in the outer barrel, the copper guide ring is sleeved on the periphery of the ball screw and connected with the ball nut, at least part of the heat dissipation assembly is connected with the copper guide ring, and at least part of the heat dissipation assembly is fixed on the outer side of the outer barrel.
2. The electromagnetic damper of claim 1, wherein: the heat dissipation assembly comprises a metal guide ring, a lead and a variable resistor; the metal guide ring comprises an inner ring and an outer ring, the outer ring is sleeved on the periphery of the inner ring, two open ends of the copper guide ring are respectively contacted with the inner ring and the outer ring, the variable resistor is fixed on the outer side of the outer barrel, and the inner ring and the outer ring are both connected with the variable resistor through wires.
3. The electromagnetic damper of claim 1, wherein: the copper guide ring comprises an annular part, a frame part and a guide sheet; the annular part is sleeved on the periphery of the ball screw, the two frame body parts are oppositely arranged along the axial direction of the ball screw and are respectively connected with two ends of the annular part, the ball nut is connected with the two frame body parts, the guide pieces are respectively installed at one ends, far away from the annular part, of the frame body parts, and the guide pieces are connected with the heat dissipation assembly.
4. The electromagnetic damper of claim 3, wherein: the insulating support is further included, one end of the insulating support is connected with the ball nut, and the other end of the insulating support is connected with the corresponding frame body portion.
5. The electromagnetic damper of claim 1, wherein: also comprises a clapboard; the partition plate is positioned in the outer barrel, an inner cavity of the outer barrel is divided into a first cavity and a second cavity, the ball screw is positioned in the first cavity, one end of the ball screw penetrates through the outer barrel and then extends outwards, and the other end of the ball screw penetrates through the partition plate and then is positioned in the second cavity.
6. The electromagnetic damper of claim 5, wherein: the device also comprises a positioning support; a side face, close to the first cavity, of the partition plate is provided with a first annular slide way, the first annular slide way is located on the periphery of the ball screw, the outer barrel is provided with a second annular slide way opposite to the first annular slide way, the positioning supports are located on two sides of the ball nut respectively, one end of each positioning support is connected with the ball nut, and the other end of each positioning support is located in the corresponding first annular slide way or the corresponding second annular slide way.
7. The electromagnetic damper of claim 1, wherein: the ear plate comprises a first ear plate and a second ear plate; the first lug plate is arranged at one end of the ball screw, which extends out of the outer barrel, and the second lug plate is arranged at the other end face of the outer barrel and is opposite to the first lug plate.
8. The electromagnetic damper of claim 7, wherein: the outer barrel comprises a barrel body, a first cover plate and a second cover plate; the first cover plate and the second cover plate are respectively sealed at two ends of the cylinder body, the ball screw penetrates through the first cover plate and then extends outwards, and the second lug plate is installed on the second cover plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267957.6U CN213541139U (en) | 2020-10-13 | 2020-10-13 | Electromagnetic damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022267957.6U CN213541139U (en) | 2020-10-13 | 2020-10-13 | Electromagnetic damper |
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| Publication Number | Publication Date |
|---|---|
| CN213541139U true CN213541139U (en) | 2021-06-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022267957.6U Active CN213541139U (en) | 2020-10-13 | 2020-10-13 | Electromagnetic damper |
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| Country | Link |
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| CN (1) | CN213541139U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178101A (en) * | 2020-10-13 | 2021-01-05 | 广州大学 | an electromagnetic damper |
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2020
- 2020-10-13 CN CN202022267957.6U patent/CN213541139U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112178101A (en) * | 2020-10-13 | 2021-01-05 | 广州大学 | an electromagnetic damper |
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