CN214197077U - Magnetorheological damping device with external magnetic field - Google Patents
Magnetorheological damping device with external magnetic field Download PDFInfo
- Publication number
- CN214197077U CN214197077U CN202120141456.5U CN202120141456U CN214197077U CN 214197077 U CN214197077 U CN 214197077U CN 202120141456 U CN202120141456 U CN 202120141456U CN 214197077 U CN214197077 U CN 214197077U
- Authority
- CN
- China
- Prior art keywords
- damper
- cover plate
- rotating shaft
- damping device
- rotor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 238000013016 damping Methods 0.000 title claims abstract description 22
- 238000007789 sealing Methods 0.000 claims abstract description 22
- 239000012530 fluid Substances 0.000 claims abstract description 19
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 16
- 229910052802 copper Inorganic materials 0.000 claims abstract description 16
- 239000010949 copper Substances 0.000 claims abstract description 16
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 15
- 230000000903 blocking effect Effects 0.000 claims description 5
- 238000012423 maintenance Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
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- Fluid-Damping Devices (AREA)
Abstract
The utility model discloses an external magnetic field type magneto-rheological damping device, which comprises an upper damper cover plate and a lower damper cover plate, wherein a rotatable damper rotating shaft is arranged in the center of the damper cover plate, U-coil iron cores are uniformly distributed in the circumferential direction of the damper cover plate, a copper coil is wound on a connecting part of the U-coil iron cores, and a lead is reserved in the copper coil; the magnetorheological fluid filling hole is reserved in the upper cover plate of the damper, the filling hole can be sealed by bolts and sealing rings, a damper rotor is arranged in the sealing cavity, the damper rotating shaft drives the damper rotor to rotate in the sealing cavity, an annular rotor positioning plate is correspondingly arranged on the lower end face of the upper cover plate of the damper and the upper end face of the lower cover plate of the damper, the annular rotor positioning plate is arranged close to the damper rotating shaft, and the inner diameter of the annular rotor positioning plate is larger than the outer diameter of the damper rotating shaft. The damping device has a very simple structure, the coil of the damper is positioned outside the damper, and the damping device has the advantages of simplicity in processing and assembly, convenience in maintenance, easiness in adjusting the arrangement position and number of the coil and the like.
Description
Technical Field
The utility model relates to a attenuator technical field for power consumption especially relates to an external magnetic current becomes damping device in magnetic field.
Background
The damper is a common energy consumption element and is widely applied to the fields of machinery, civil engineering and the like; the magneto-rheological damper has the advantage of adjustable and controllable damping performance, and is very suitable for the field of active or semi-active control. At present, the magneto-rheological damper is applied more and more in civil engineering, for example, the vibration of a stay cable of a large-span bridge is controlled, the stability of a high-rise structure under the action of wind and earthquake loads is improved, and the like; the damper used in civil engineering at present shows the trend of large volume and complex structure, and the invention provides a magnetorheological damper with an external magnetic field, which has the advantages of compact structure, convenience in maintenance and the like.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the defects of the prior art and providing the magnetorheological damping device with the external magnetic field. The damping device has a very simple structure, the coil of the damper is positioned outside the damper, and the damping device has the advantages of simplicity in processing and assembly, convenience in maintenance, easiness in adjusting the arrangement position and number of the coil and the like.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides an external magnetic field type magneto-rheological damping device, which comprises an upper damper cover plate and a lower damper cover plate, wherein the upper damper cover plate and the lower damper cover plate are sealed together as a connecting part by a damper shell to form a damper cover plate, a sealed cavity is formed between the upper damper cover plate and the lower damper cover plate, a rotatable damper rotating shaft is arranged at the center of the damper cover plate, U-shaped coil iron cores are uniformly distributed on the damper cover plate in the circumferential direction, copper coils are wound on the connecting part of the U-shaped coil iron cores, and leads are reserved on the copper coils; the magnetorheological fluid filling hole is reserved in the upper damper cover plate, a blocking structure is arranged on the magnetorheological fluid filling hole, a damper rotor is arranged in the sealed cavity and fixedly connected with the damper rotating shaft, the damper rotating shaft drives the damper rotor to rotate in the sealed cavity, gaps are formed between the damper rotor and the upper damper cover plate and between the damper rotor and the lower damper cover plate respectively, and magnetorheological fluid is arranged in the gaps; the lower end face of the upper cover plate of the damper and the upper end face of the lower cover plate of the damper are correspondingly provided with annular rotor positioning plates, the annular rotor positioning plates are arranged close to the rotating shaft of the damper, and the inner diameter of each annular rotor positioning plate is larger than the outer diameter of the rotating shaft of the damper.
And a gap is arranged between the damper shell and the copper coil.
The upper damper cover plate and the lower damper cover plate are connected through a first connecting bolt, and the U-shaped coil iron core is connected with the damper cover plate through a second bolt.
And a sealing ring is arranged between the damper cover plate and the damper rotating shaft.
The plugging structure is a fastening bolt and is provided with a sealing ring for sealing.
Compared with the prior art, the beneficial effects of the utility model are that:
1. the damping device of the device is simple in structure and easy to process, install and maintain in later period.
2. The coil is arranged outside the damper, and the position, the number of turns and the like of the coil of the damper can be flexibly adjusted according to requirements.
3. The damping device has a simple and compact internal structure, and can improve the reliability of the damper in the using process.
4. The coil in the structure of the device is arranged at the edge of the magnetorheological damper, namely the place with the largest resistance generated by the magnetorheological fluid, so that the use efficiency of the magnetorheological fluid is greatly improved.
Drawings
Fig. 1 is a schematic structural view of a magnetorheological damping device with an external magnetic field according to the present invention;
FIG. 2 is a schematic view of a structure in partial cross-section;
in the figure: the damper comprises an upper damper cover plate 1, a lower damper cover plate 2, a damper cover plate 3, a damper rotating shaft 4, a coil iron core 5U, a copper coil 6, a magnetorheological fluid filling hole 7, a damper rotor 8, an annular rotor positioning plate 9, a sealing ring 10, a damper shell 11, a gap 12, a sealing cavity 13, a sealing structure 14, a first bolt 15 and a second bolt 16.
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.
Referring to fig. 1-2, the utility model provides an external magnetic current becomes damping device, including attenuator upper cover plate 1 and attenuator lower cover plate 2, attenuator upper cover plate 1 and attenuator lower cover plate 2 constitute attenuator apron 3 by attenuator shell 11 is sealed together as connecting portion, forms sealed cavity 13 between attenuator upper cover plate 1 and the attenuator lower cover plate 2, the center of attenuator apron 3 is equipped with rotatable attenuator pivot 4, and the circumference equipartition of attenuator apron 3 has U coil iron core 5, and the connecting portion of U coil iron core 5 is twined and is had copper coil 6, and copper coil 6 reserves the lead wire, is used for meeting with direct current power supply, is equipped with the space between attenuator shell 11 and the copper coil 6; a magnetorheological fluid filling hole 7 is reserved in the upper damper cover plate 1, a blocking structure 14 is arranged on the magnetorheological fluid filling hole 7, the blocking structure 14 is a fastening bolt and is provided with a sealing ring for sealing, a damper rotor 8 is arranged in the sealing cavity 11, the damper rotor 8 is fixedly connected with the damper rotating shaft 4, the damper rotating shaft 4 drives the damper rotor 8 to rotate in the sealing cavity 11, a gap 12 is formed between the damper rotor 8 and the upper damper cover plate 1 and between the damper rotor 8 and the lower damper cover plate 2, and magnetorheological fluid is arranged in the gap 12; the lower end face of the upper damper cover plate 1 and the upper end face of the lower damper cover plate 2 are correspondingly provided with annular rotor positioning plates 9, the annular rotor positioning plates 9 are arranged close to the damper rotating shaft 4, and the inner diameter of each annular rotor positioning plate 9 is larger than the outer diameter of the damper rotating shaft 4.
In order to facilitate the disassembly and assembly of the structure, the upper damper cover plate 1 and the lower damper cover plate 2 are connected through a first connecting bolt 15, and the U-shaped coil iron core 5 is connected with the damper cover plate 3 through a second bolt 16.
In order to prevent the magnetorheological fluid from leaking, a sealing ring 10 is arranged between the damper cover plate 3 and the damper rotating shaft 4.
When the damper device works, the damper rotating shaft and the damper cover plate rotate relatively to drive the damper rotor to move in the damper, magnetorheological fluid positioned between the damper cover plate and the damper rotor is subjected to a shearing action to generate resistance, and the damper outputs damping outwards; the aim of adjusting the damping performance of the damper can be achieved by adjusting the current in the copper coil.
The direct current is provided for the copper coil, a magnetic field is applied to the damper through the coil iron core, and the magnetic field is controlled by adjusting the current introduced into the coil, so that the performance of the damper is adjusted.
The installation method of the device comprises the following steps: firstly, a copper coil is wound on a U-coil iron core, and a lead is reserved for connecting with a direct-current power supply. Fixing the damper rotating shaft and the damper rotor together; then assembling a damper cover plate and a rotor positioning plate at one end of the damper, assembling a shell, and assembling a damper lower cover plate and a rotor positioning plate at the other end of the damper after the parts to be inspected are matched without errors; and (4) placing sealing rings at positions as much as possible for sealing to prevent the magnetorheological fluid from leaking, and fixing the parts together by using bolts. Filling magnetorheological fluid into the damper through a magnetorheological fluid filling hole reserved in the damper cover plate, then vacuumizing the damper, discharging air in the damper, and then sealing the magnetorheological fluid filling hole by using a sealing structure to finish the assembly and sealing work of the damper. And fixing the U-shaped coil iron core wound with the copper coils at the designated position of the damper by using a second connecting bolt according to the actual required number.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (5)
1. The utility model provides an external magnetic field magnetic current becomes damping device, apron (2) under including attenuator upper cover plate (1) and attenuator, apron (2) constitute attenuator apron (3) by damper shell (11) as connecting portion are sealed together under attenuator upper cover plate (1) and the attenuator, form seal chamber (13) between apron (2) under attenuator upper cover plate (1) and the attenuator, its characterized in that: a rotatable damper rotating shaft (4) is arranged in the center of the damper cover plate (3), U-shaped coil iron cores (5) are uniformly distributed in the circumferential direction of the damper cover plate (3), copper coils (6) are wound on connecting parts of the U-shaped coil iron cores (5), and leads are reserved in the copper coils (6); a magnetorheological fluid filling hole (7) is reserved in the upper damper cover plate (1), a blocking structure (14) is arranged on the magnetorheological fluid filling hole (7), a damper rotor (8) is arranged in the sealed cavity (13), the damper rotor (8) is fixedly connected with the damper rotating shaft (4), the damper rotating shaft (4) drives the damper rotor (8) to rotate in the sealed cavity (13), gaps (12) are formed between the damper rotor (8) and the upper damper cover plate (1) and between the damper rotor and the lower damper cover plate (2), and magnetorheological fluid is arranged in the gaps (12); the lower end face of the upper damper cover plate (1) and the upper end face of the lower damper cover plate (2) are correspondingly provided with an annular rotor positioning plate (9), the annular rotor positioning plate (9) is arranged close to the damper rotating shaft (4), and the inner diameter of the annular rotor positioning plate (9) is larger than the outer diameter of the damper rotating shaft (4).
2. The magnetorheological damping device with the external magnetic field as claimed in claim 1, wherein: and a gap is arranged between the damper shell (11) and the copper coil (6).
3. The magnetorheological damping device with the external magnetic field as claimed in claim 1, wherein: the damper upper cover plate (1) is connected with the damper lower cover plate (2) through a first connecting bolt (15), and the U-shaped coil iron core (5) is connected with the damper cover plate (3) through a second bolt (16).
4. The magnetorheological damping device with the external magnetic field as claimed in claim 1, wherein: and a sealing ring is arranged between the damper cover plate (3) and the damper rotating shaft (4).
5. The magnetorheological damping device with the external magnetic field as claimed in claim 1, wherein: the blocking structure (14) is a fastening bolt and is provided with a sealing ring for sealing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120141456.5U CN214197077U (en) | 2021-01-19 | 2021-01-19 | Magnetorheological damping device with external magnetic field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120141456.5U CN214197077U (en) | 2021-01-19 | 2021-01-19 | Magnetorheological damping device with external magnetic field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214197077U true CN214197077U (en) | 2021-09-14 |
Family
ID=77637967
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120141456.5U Expired - Fee Related CN214197077U (en) | 2021-01-19 | 2021-01-19 | Magnetorheological damping device with external magnetic field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214197077U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877009A (en) * | 2022-05-16 | 2022-08-09 | 郑州大学 | Intelligent magnetorheological damper with anti-settling function and method for controlling damping force output |
| CN114986103A (en) * | 2022-07-01 | 2022-09-02 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
-
2021
- 2021-01-19 CN CN202120141456.5U patent/CN214197077U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114877009A (en) * | 2022-05-16 | 2022-08-09 | 郑州大学 | Intelligent magnetorheological damper with anti-settling function and method for controlling damping force output |
| CN114877009B (en) * | 2022-05-16 | 2024-02-23 | 郑州大学 | Intelligent magnetorheological damper with anti-sedimentation function and method for controlling damping force output |
| CN114986103A (en) * | 2022-07-01 | 2022-09-02 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
| CN114986103B (en) * | 2022-07-01 | 2023-09-22 | 中裕铁信交通科技股份有限公司 | Processing technology of annular damper |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210914 |
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| CF01 | Termination of patent right due to non-payment of annual fee |