CN209925497U - Self-induction power supply self-adaptive rheologic liquid damper - Google Patents
Self-induction power supply self-adaptive rheologic liquid damper Download PDFInfo
- Publication number
- CN209925497U CN209925497U CN201920455272.9U CN201920455272U CN209925497U CN 209925497 U CN209925497 U CN 209925497U CN 201920455272 U CN201920455272 U CN 201920455272U CN 209925497 U CN209925497 U CN 209925497U
- Authority
- CN
- China
- Prior art keywords
- damping
- self
- damper
- piston
- cylinder
- 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
- 239000007788 liquid Substances 0.000 title claims abstract description 7
- 238000013016 damping Methods 0.000 claims abstract description 32
- 239000012530 fluid Substances 0.000 claims abstract description 21
- 230000006698 induction Effects 0.000 claims abstract description 17
- 239000011148 porous material Substances 0.000 claims description 7
- 238000007667 floating Methods 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 5
- 230000003044 adaptive effect Effects 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 4
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000005538 encapsulation Methods 0.000 abstract description 2
- 230000005674 electromagnetic induction Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 230000001808 coupling effect Effects 0.000 description 1
- 238000011089 mechanical engineering Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000002520 smart material Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Images
Landscapes
- Vibration Prevention Devices (AREA)
- Fluid-Damping Devices (AREA)
Abstract
The utility model relates to a self-adaptation current transformation liquid damper of self-induction power supply. The electromagnetic damping device is composed of a force-bearing part, an electromagnetic part, a damping part and an encapsulation part. Wherein the force-bearing part and the electromagnetic part are sequentially connected with the damping part from top to bottom. The inner electrode is connected with the damping inner cylinder, and the outer electrode is connected with the damping outer cylinder. A damping channel is formed between the inner electrode and the outer electrode, and small holes are formed in the upper portion and the lower portion of the inner electrode and used for backflow of the electrorheological fluid and damping. When the piston rod is vibrated by the outside, the permanent magnet arranged on the piston rod moves along with the piston rod, the coil is fully distributed on the inner wall of the damping cylinder, and when the permanent magnet moves up and down, the coil cuts the magnetic induction line to generate induction voltage. The induced voltage is connected to the inner and outer electrodes to increase the viscosity of the ER fluid, thereby reducing the vibration of the piston. The faster the piston vibrates, the higher the voltage generated by the induction coil, and the higher the resistance generated by the ER fluid, thereby achieving the purpose of self-adaptive vibration reduction of the system. The utility model discloses external power source and control system have been saved.
Description
Technical Field
The patent relates to an electrorheological fluids attenuator device need not external power supply at the during operation, can be along with the intelligent attenuator of external vibration frequency self-adaptation damping.
Background
Electrorheological fluids (ER fluids) are smart materials, which are typically suspensions of micron (or nanometer) sized particles with high dielectric constants uniformly dispersed in an insulating, low dielectric constant, oil phase medium. When an external electric field is applied, the ER fluid transitions from a flow state to a solid-like state, with a sharp increase in apparent viscosity of several orders of magnitude and higher shear stresses. The process is reversible, controllable, rapid and low power consuming. These excellent electromechanical coupling properties allow ER fluids to effectively address energy transfer and control problems in mechanical engineering. Zhao Xiaopeng et al in a patent of a self-coupling current transformation liquid damper without external power supply (ZL02139476.8), designed with a piezoelectric ceramic power supply adaptive current transformation liquid damper, and omitted the external power supply, but the whole damper only has a large resistance in the process of downward compression, and has no variable resistance in the return stroke. In addition, the volume change of the inner cavity of the damper caused by the piston rod is not considered in the damper, and the damper can hardly be realized in practical application. In the patent of the self-adaptive damper with wedge-shaped force application (ZL96236426.6), the external vibration cannot be too large due to the labor-saving structure. The above two dampers have their own drawbacks, which limit their application.
SUMMERY OF THE UTILITY MODEL
The self-induction power supply self-adaptive rheologic liquid damper has the features of direct stress, great vibration resisting frequency, great stroke, small rigidity, etc.
The utility model discloses a self-adaptation current rheological fluids attenuator of self-induction power supply mainly comprises atress part, electromagnetic induction part, damping part, encapsulation coupling part and compensation air chamber part.
The force-bearing part comprises a piston rod (12), a spring (14) and a piston (19). The piston rod (12) is permanently connected with the piston (19), and the spring (14) is sleeved on the piston rod (12).
The electromagnetic induction part comprises a lead (6), an induction coil (10) and a permanent magnet (15). The piston rod (12) reciprocates up and down to drive the permanent magnet (15) to reciprocate up and down in the induction coil (10) and generate induction voltage in the induction coil (10).
The damping part comprises an outer electrode plate (4), a damping cavity (18), a damping channel (20), electrorheological fluid (21), an inner electrode plate (22) and a pore canal (23). The induced voltage generated in the induction coil (10) is connected to the inner electrode plate (22) and the outer electrode plate (4) through the lead (6), and generates an electric field between the damping channels (20). When the electro-rheological fluid (21) flows between the damping channels (20), the viscosity of the electro-rheological fluid (21) changes.
The packaging connection part comprises a damper inner cylinder (3), a bolt (5), a gasket (7), a hexagon nut (8), a damper outer cylinder (9), a top cover (11), a straight cylinder cover (13), an O-shaped sealing ring (16), a connecting plate (17) and a base (24). The damper outer cylinder (9), the connecting plate (17) and the damper base (24) are tightly connected through the bolt (5), the hexagon nut (8) and the gasket (7). The top cover (11) and the straight cylinder cover (13) enclose the damper.
The compensation air chamber part comprises an air chamber (1) and a floating piston (2). The air chamber (1) is arranged between the damper base (24) and the floating piston (2).
Compared with the prior art, the utility model discloses a self-adaptation electrorheological fluids attenuator of self-induction power supply has following advantage:
the novel damper does not need an external power supply and a control system, and has the characteristics of direct stress, large anti-vibration frequency, large stroke, small rigidity and the like.
Drawings
Fig. 1 is a front sectional view of a self-inductively powered adaptive rheo-hydraulic damper in accordance with the present invention.
In fig. 1: 1. the air chamber 2, the floating piston 3, the damper inner cylinder 4, the outer electrode plate 5, the bolt 6, the lead 7, the gasket 8, the hexagon nut 9, the damper outer cylinder 10, the induction coil 11, the top cover 12, the piston rod 13, the straight cylinder cover 14, the spring 15, the permanent magnet 16, the O-shaped sealing ring 17, the connecting plate 18, the damping cavity 19, the piston 20, the damping channel 21, the electrorheological fluid 22, the inner electrode plate 23, the pore passage 24 and the base.
Detailed Description
The purpose of this patent is so realized: the structure of the present invention is shown in fig. 1. The device consists of a stressed part, a spring, a piston and a bearing part, wherein the stressed part comprises a piston rod (12), a spring (14) and a piston (19); the electromagnetic induction part comprises a lead (6), an induction coil (10) and a permanent magnet (15); the damping part comprises an outer electrode plate (4), a damping cavity (18), a damping channel (20), electrorheological fluid (21), an inner electrode plate (22) and a pore canal (23); the packaging connection part comprises a damper inner cylinder (3), a bolt (5), a gasket (7), a hexagon nut (8), a damper outer cylinder (9), a top cover (11), a straight cylinder cover (13), an O-shaped sealing ring (16), a connecting plate (17) and a base (24); and the compensation air chamber part comprises five parts, namely an air chamber (1) and a floating piston (2). Wherein the stress part, the electromagnetic part, the damping part and the compensation air chamber part are sequentially connected from top to bottom. The inner and outer electrodes are respectively arranged on the inner and outer cylinders of the damper. A damping channel is formed between the inner electrode and the outer electrode.
The piston rod (12) is permanently connected to the piston (19). The permanent magnet (15) is fixed on the piston rod (12), and the upper section and the lower section of the permanent magnet (15) are connected with the spring (14). The piston rod (12) is connected with the external force application mechanism through the top cover (11) and the central holes of the straight cylinder cover (13). The top cover (11) is connected with the damper outer cylinder (9) through threads, so that the straight cylinder cover (13) and the spring (14) are fixed.
The spring (14) is divided into two sections, the upper section is connected between the straight cylinder cover (13) and the permanent magnet (15), and the lower section is connected between the permanent magnet (15) and the connecting plate (17).
The inner electrode (22) is arranged on the damper inner cylinder (3), the outer electrode (4) is arranged on the damper outer cylinder (9), a damping channel (20) is formed between the inner electrode and the outer electrode, pore canals (23) are arranged on the upper part and the lower part of the damper inner cylinder (3), and electrorheological fluid (21) is filled in the damper inner cylinder (3).
The induction coil (10) is connected with the inner electrode plate (22) and the outer electrode plate (4) through a lead (6), O-shaped sealing rings are adopted among the damping cavity (18), the connecting plate (17) and the piston rod (12), and the damper outer cylinder (9), the connecting plate (17) and the base (24) are connected through a bolt (5) and a nut (8).
The lower part of the damping cavity (18) is provided with a floating piston (2) and a gas chamber (1) filled with gas.
The working principle of the damper is as follows: when the piston rod (12) is driven by external force, the piston rod (12) moves together with the permanent magnet (15), and the induction coil (10) cuts the magnetic induction line to generate induction voltage. The induced voltage generated is connected to the inner electrode (22) and the outer electrode (4) by a lead (6). The electrorheological fluid (20) between the inner and outer electrodes is affected by the electric field, and the shear strength is increased. Under the thrust action of the piston (19), the electrorheological fluid (20) flows from the damping cavity (18) to the space between the inner electrode (22) and the outer electrode (4) through the pore channel (23), and then flows into the damping cavity (18) through the pore channel (23). The shearing strength of the electrorheological fluid (20) is increased, so that resistance is generated on the piston (19) in turn, and the aim of vibration reduction is fulfilled. The faster the up-and-down movement frequency of the piston (19), the higher the induced voltage generated by the induction coil (10) and the greater the resistance generated by the electrorheological fluid (20), thereby achieving the purpose of self-adaptive vibration reduction.
Claims (3)
1. A self-induction power supply self-adaptive rheologic liquid damper is a stress part consisting of a piston rod (12), a spring (14) and a piston (19); an electromagnetic part consisting of a lead (6), an induction coil (10) and a permanent magnet (15); the damping part consists of an outer electrode plate (4), a damping cavity (18), a damping channel (20), electrorheological fluid (21), an inner electrode plate (22) and a pore canal (23); the packaging part consisting of the damper inner cylinder (3), the bolt (5), the gasket (7), the hexagon nut (8), the damper outer cylinder (9), the top cover (11), the straight cylinder cover (13), the O-shaped sealing ring (16), the connecting plate (17) and the base (24) is characterized in that: the force-bearing part, the electromagnetic part and the damping part are sequentially connected up and down, the inner electrode and the outer electrode are respectively connected with the inner cylinder and the outer cylinder of the damper, and a damping channel is formed between the inner electrode and the outer electrode.
2. A self-inductively powered adaptive rheo-hydraulic damper, according to claim 1, characterized in that the permanent magnet (15) reciprocates in the induction coil (10) to generate an induced electric field.
3. A self-inductively powered adaptive rheo-hydraulic damper, according to claim 1, characterized in that an air chamber (1) is provided between the damper's base (24) and floating piston (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920455272.9U CN209925497U (en) | 2019-04-04 | 2019-04-04 | Self-induction power supply self-adaptive rheologic liquid damper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920455272.9U CN209925497U (en) | 2019-04-04 | 2019-04-04 | Self-induction power supply self-adaptive rheologic liquid damper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209925497U true CN209925497U (en) | 2020-01-10 |
Family
ID=69072357
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920455272.9U Expired - Fee Related CN209925497U (en) | 2019-04-04 | 2019-04-04 | Self-induction power supply self-adaptive rheologic liquid damper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209925497U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944896A (en) * | 2019-04-04 | 2019-06-28 | 四川大学 | A kind of self-adaptive current liquescent damper of self-induction power supply |
| CN111853136A (en) * | 2020-07-23 | 2020-10-30 | 杭州根基科技有限公司 | Auxiliary leveling device for computer based on electrorheological fluid |
-
2019
- 2019-04-04 CN CN201920455272.9U patent/CN209925497U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109944896A (en) * | 2019-04-04 | 2019-06-28 | 四川大学 | A kind of self-adaptive current liquescent damper of self-induction power supply |
| CN111853136A (en) * | 2020-07-23 | 2020-10-30 | 杭州根基科技有限公司 | Auxiliary leveling device for computer based on electrorheological fluid |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106594159B (en) | A kind of magneto-rheological combined suspension for realizing three-dimensional vibration isolation | |
| CN109944896A (en) | A kind of self-adaptive current liquescent damper of self-induction power supply | |
| CN100356082C (en) | Inverse type magnetic flow damper | |
| CN104832585B (en) | Intelligent magneto-rheological elastomer vibroshock | |
| CN108561486A (en) | A kind of novel anti-settling magnetic rheological liquid damper | |
| CN209925497U (en) | Self-induction power supply self-adaptive rheologic liquid damper | |
| CN104632979A (en) | Adjustable damping shock absorber | |
| CN101709761B (en) | Single outstretch pole magnetorheological damper | |
| CN104315073A (en) | Variable-stiffness variable-damping shock absorber based on magnetorheological damper | |
| CN102367858B (en) | Magneto-rheological friction type hybrid damper | |
| CN110056599A (en) | A kind of active magneto-rheological vibration damper of bitubular based on route-variable under shear mode | |
| CN101725659A (en) | External electromagnet magnetorheological damper | |
| WO2023279748A1 (en) | Hybrid damping mode-based high-output-force vibration isolation mount | |
| CN110195760A (en) | A kind of novel piezo-electric ceramic and ER fluid are from coupling damper | |
| CN108458031B (en) | A kind of super mangneto squash type MR damper adaptive approach and damper | |
| CN104595412A (en) | Double-barrel-structure magneto-rheological shock absorber based on flow mode | |
| CN106195100A (en) | Magnetic flow liquid buffer under a kind of compound plate squeeze mode | |
| CN110332275B (en) | Full-channel shear extrusion mixed mode magnetorheological damper and control method thereof | |
| CN110439955A (en) | A kind of magnetorheological fluid unidirectional damping regulating valve | |
| CN212536511U (en) | Bidirectional piezoelectric ceramic and electrorheological fluid self-coupling damper | |
| CN2318453Y (en) | Current variable liquid and piezoelectric ceramic composited self-adaption damper | |
| CN212536512U (en) | Double-rod uncompensated air chamber symmetric self-powered electro-rheological fluid damper | |
| CN110878807B (en) | Built-in mixed mode magneto-rheological damper | |
| CN107327533B (en) | Magneto-rheological mud damper | |
| CN111677807A (en) | Bidirectional piezoelectric ceramic and electrorheological fluid self-coupling damper |
Legal Events
| 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: 20200110 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |