CN116816854A - Self-energy-harvesting giant electrorheological fluid vibration isolator, vibration-resistant vibration-damping equipment and application thereof - Google Patents

Abstract

The application relates to the technical field of vibration isolators, in particular to a self-energy-harvesting giant electrorheological fluid vibration isolator, vibration-resistant vibration-damping equipment and application thereof, comprising an energy harvesting chamber, a floating unit and a second polar plate assembly, wherein the energy harvesting chamber is formed in a shell, the floating unit comprises a shaft assembly, the shaft assembly comprises a floating section arranged in the energy harvesting chamber, the floating section is connected with a coil assembly and a first polar plate assembly, the coil assembly can move along with the floating section so as to cut a magnetic field to generate induced electromotive force, the coil assembly is provided with a first output end and a second output end, and the first output end is connected to the first polar plate assembly; the second output is connected to the second pole plate assembly so that an induced electromotive force can be generated between the first pole plate assembly and the second pole plate assembly, thereby distorting the giant electrorheological fluid between the first pole plate and the second pole plate to provide a corresponding damping force.

Description

Self-energy-harvesting giant electrorheological fluid vibration isolator, vibration-resistant vibration-damping equipment and application thereof

Technical Field

The application relates to the technical field of vibration isolators, in particular to a self-energy-harvesting giant electrorheological fluid vibration isolator, vibration-resistant vibration-damping equipment and application thereof.

Background

The giant electrorheological fluid is a novel voltage-controlled intelligent material, and the material shows a special rheological effect, namely when no electric field is applied in the electrorheological fluid, particles in the electrorheological fluid are in disordered distribution, and macroscopically show a Newtonian fluid; when an electric field is applied in the liquid, particles in the liquid are polarized and orderly distributed and arranged in a few milliseconds, and the rigidity and damping characteristics of the material are macroscopically adjustable with voltage, so that the vibration isolator can be widely used in industry and life for constructing the vibration isolator and reducing the vibration of machinery and buildings. Compared with magnetorheological fluid, the giant electrorheological fluid can be distorted by only two polar plates with potential difference, so that the giant electrorheological fluid is used as an energy collection type vibration isolator, and the energy collection part and the damping part can be coupled together through special polar plate design, thereby improving the integration level of the vibration isolator and reducing the volume.

Since the electric field between the electrodes decays at an exponential speed along with the increase of the distance between the electrodes, in order to ensure enough electric field intensity inside the damper and maintain the damping force relatively constant, one set of electrodes and even multiple sets of array electrode configurations are adopted in the damper, for example, a multilayer extrusion type giant electrorheological fluid damper disclosed in the Chinese patent application publication No. CN 107687494A adopts a form that positive electrodes and negative electrodes are alternately arranged, and simultaneously high-voltage electricity is adopted to supply power to the positive and negative electrodes respectively, so that enough electric field can be formed between the positive and negative electrodes, but the giant electrorheological fluid damper can cause the rapid increase of the volume of the damper due to the densely arranged electrodes, and meanwhile, an additional high-voltage power supply is required to further increase the volume of the damper, thereby bringing great challenges to the design and the integration application of the damper.

Disclosure of Invention

In order to solve the technical problems, the application aims to provide the self-energy-harvesting giant electrorheological fluid vibration isolator, the vibration-resistant vibration-damping equipment and the application thereof, wherein the self-energy-harvesting giant electrorheological fluid vibration isolator and the vibration-resistant vibration-damping equipment do not need external power supply, and the defect of large volume of the vibration isolator in the prior art can be effectively solved.

In order to achieve the technical effects, the application adopts the following technical scheme:

the utility model provides a self-energy-harvesting huge electrorheological fluid vibration isolator, includes the casing, still includes:

the energy harvesting chamber is formed in the shell and can be used for containing giant electrorheological fluid, and the energy harvesting chamber is provided with a magnetic field;

a floating unit including a shaft assembly including at least a floating segment provided in the energy harvesting chamber and being excited by an external force to move downward with respect to the housing, the floating segment being connected with a coil assembly and a first plate assembly, the coil assembly moving with the floating segment to cut a magnetic field to generate an induced electromotive force, the coil assembly having a first output end and a second output end, the first output end being connected to the first plate assembly;

the second pole plate assembly is arranged in the energy harvesting chamber and fixedly connected to the shell, and the second pole plates are electrically connected to the second output end;

the first and second plate assemblies are at least partially overlapping in a longitudinal projection direction so as to have an overlapping area in which the giant electrorheological fluid is distorted based on an electric field generated between the first and second plate assemblies to provide a corresponding damping force.

Preferably, the magnetic field is provided by a part of the housing or by a second pole plate assembly.

Further, the coil assembly comprises a plurality of groups of induction coils, and the plurality of groups of induction coils are fixedly connected to the floating section, so that the induction coils can be driven to cut a magnetic field to generate induced electromotive force when the floating section moves up and down relative to the shell, and the first polar plate assembly and the second polar plate assembly are powered, so that the connection of an external power supply is avoided.

Further, the shaft assembly further comprises an actuating section arranged at the top end of the floating section, the bottom end of the actuating section is directly or indirectly fixedly connected to the floating section, the top end of the actuating section penetrates through the shell and extends to the outside of the shell so as to transmit external vibration, the actuating section has a telescopic degree of freedom relative to the shell, the telescopic degree of freedom enables the actuating section to slide up and down relative to the shell under the excitation of external force, and when the actuating section is excited by the external force, the actuating section can be driven to move up and down in the shell.

Further, the self-resetting assembly is used for providing driving force opposite to the external force excitation direction for the shaft assembly, so that automatic resetting can be realized after the shaft assembly moves downwards under the excitation of the external force.

Preferably, the self-resetting component is a diaphragm spring to further reduce the volume of the self-energy-harvesting giant electrorheological fluid vibration isolator.

Based on the technical scheme, the application further provides a specific arrangement mode of the following polar plates, which comprises the following steps:

the first polar plate assembly comprises a plurality of groups of first polar plates which are parallel to each other, the second polar plate assembly comprises a plurality of groups of second polar plates which are parallel to each other, the first polar plates and the second polar plates are alternately distributed along the axial direction of the shaft assembly, rheological gaps for accommodating giant electrorheological fluid exist between the first polar plates and the second polar plates, the first polar plates and the second polar plates can be at least partially overlapped in the longitudinal projection direction, and the giant electrorheological fluid between the overlapped areas can be excited by an electric field between the first polar plates and the second polar plates so as to generate distortion, so that the effects of vibration reduction and vibration resistance are achieved.

Preferably, the shaft assembly is arranged in the center of the energy capturing chamber, the first polar plate at least comprises a first sector plate, the inner side surface of the first sector plate is fixedly connected to the shaft assembly, and the outer end surface of the first sector plate is in clearance fit with the inner wall of the shell; the second pole plate at least comprises a second sector plate, the outer side surface of the second sector plate is fixedly connected to the inner wall of the shell, the inner side surface of the second sector plate is in clearance fit with the outer side surface of the shaft assembly, and the structural design can enable the whole structure of the energy harvesting chamber to be compact; preferably, the cross section of the energy harvesting chamber is circular.

Or:

the first polar plate assembly at least comprises a section of continuous first helical blade, the second polar plate assembly at least comprises a section of continuous second helical blade, and the first helical blade and the second helical blade have overlapping areas along the longitudinal projection direction; preferably, the cross section of the energy harvesting chamber is circular.

Furthermore, to facilitate adjustment of the damping force to increase its flexibility, the size of the overlapping area between the first and second pole plates in the longitudinal projection direction is adjustable.

Further, the adjustment of the size of the overlap area is achieved by rotating the shaft assembly relative to the housing, such that the adjustment of the damping force can be achieved by adjusting the size of the overlap area. Preferably, the shaft assembly further has a rotational degree of freedom with respect to the housing, the rotational degree of freedom enabling the shaft assembly to rotate the first pole plate assembly with respect to the housing to adjust an overlapping area of the first pole plate assembly and the second pole plate assembly in a longitudinal projection direction.

In a second aspect, the present application further provides an application of the self-energy-harvesting giant electrorheological fluid vibration isolator provided in the first aspect in vibration-resistant and vibration-reducing equipment.

Compared with the prior art, the application has the beneficial effects that:

in a first aspect, the application provides a self-energy-harvesting giant electrorheological fluid vibration isolator, which solves the defects that the traditional giant electrorheological fluid vibration isolator and the traditional magnetorheological vibration isolator are large in size, low in integration level and mostly require an external power supply for power supply, adopts a self-energy supply design, enables the originally consumed heating kinetic energy to supply energy to a system, and can effectively improve vibration isolation performance. Meanwhile, the self-energy-harvesting giant electrorheological fluid vibration isolator integrates the first polar plate component and the coil component on the shaft component, so that the whole volume of the vibration isolator is reduced, and the energy of the captured external vibration source is converted into voltage in the working process of the device through the optimized magnetic field and coil design, and the polar plate is provided with energy, so that an external power supply is omitted, and the system integration is facilitated. Compared with the traditional damper, the self-energy-harvesting giant electrorheological fluid vibration isolator provided by the application can bear high pressure and is not damaged due to the coil and the magnet, so that the self-energy-harvesting giant electrorheological fluid vibration isolator can be applied to high-pressure, high-frequency and heavy-load functional application.

On the other hand, the self-energy-harvesting giant electrorheological fluid vibration isolator and the vibration-resistant vibration-damping device are based on the defect that the damping force of the existing vibration isolator is not adjustable, and the self-energy-harvesting giant electrorheological fluid vibration isolator provided by the application has better scene adaptability and flexibility due to the fact that the damping characteristic and the rigidity characteristic are adjusted by adjusting the overlapping area between the first polar plate component and the second polar plate component, and in addition, the working reliability of the self-energy-harvesting giant electrorheological fluid vibration isolator is further improved due to the arrangement of the diaphragm spring.

Drawings

Fig. 1 is a schematic diagram of the overall structure of a self-energy-harvesting giant electrorheological fluid vibration isolator according to embodiments 1-2 of the present application;

fig. 2 is a schematic diagram of a first explosion structure of a self-energy-harvesting giant electrorheological fluid vibration isolator according to embodiments 1-2 of the present application;

fig. 3 is a schematic diagram of a second explosion structure of the self-energy-harvesting giant electrorheological fluid vibration isolator according to embodiments 1 to 2 of the present application;

fig. 4 is a schematic diagram of an explosion structure of a self-energy-harvesting giant electrorheological fluid vibration isolator according to embodiments 3 to 4 of the present application;

the reference numerals are: 10, housing, 21, floating section, 211, induction coil, 22, actuation section, 231, first diaphragm spring, 232, second diaphragm spring, 24, first plate, 241, first sector plate, 25, second plate, 251, second sector plate, 261, first helical blade, 262, second helical blade.

Detailed Description

Embodiments of the technical scheme of the present application will be described in detail below with reference to the accompanying drawings. The following examples are only for more clearly illustrating the technical aspects of the present application, and thus are merely examples, and are not intended to limit the scope of the present application. It will be understood by those skilled in the art that the present application may be practiced without some of these specific details. In other embodiments, methods, means, apparatus and steps well known to those skilled in the art have not been described in detail in order to not obscure the present application.

Unless specifically stated otherwise, in the present application, if there are terms such as "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", "x-direction", "y-direction", "z-direction", etc., the directions or positional relationships indicated are based on the directions or positional relationships indicated in the drawings, only for convenience of description and simplification of description, and not to indicate or imply that the referred devices or elements must have specific directions, be constructed and operated in specific directions, so that the terms describing the directions or positional relationships in the present application are only used for exemplary illustration and are not to be construed as limitations of the present patent, and the specific meanings of the terms described above may be understood by those skilled in the art in conjunction with the drawings according to the specific circumstances.

Example 1

Referring to fig. 1 to 3, the present embodiment provides a self-energy harvesting giant electrorheological fluid vibration isolator, which includes a housing 10 and a floating unit, wherein an energy harvesting chamber is formed in the housing 10, and a magnetic field is provided in the energy harvesting chamber, and the energy harvesting chamber is used for accommodating a giant electrorheological fluid. Specifically, the floating unit comprises a shaft assembly, the shaft assembly comprises a floating section 21 and an actuating section 22, wherein the floating section 21 is arranged in the energy harvesting chamber and is fixedly connected with a coil assembly and a first polar plate assembly, the coil assembly is provided with a plurality of groups and is distributed along the floating section 21 at equal intervals, in addition, a second polar plate assembly is fixedly connected to the shell 10, the coil assembly is provided with a first output end and a second output end, the first output end is connected to the first polar plate assembly, and the second output end is connected to the second polar plate assembly. The magnetic field in the energy harvesting chamber is provided by a second polar plate assembly, the coil assembly comprises a plurality of groups of induction coils 211, and the induction coils 211 are fixedly connected to the floating section 21 and are distributed along the axial direction of the floating section 21 at equal intervals, so that when the floating section 21 moves up and down relative to the shell 10, the induction coils 211 can be driven to cut the magnetic field to generate induced electromotive force, so that the first polar plate assembly and the second polar plate assembly are conveniently powered, the giant electrorheological fluid between the first polar plate assembly and the second polar plate assembly is distorted under the action of an electric field and acts on the first polar plate assembly reversely, the vibration reduction and vibration resistance effects are achieved, the connection of an external power supply is avoided, and the purpose of reducing the volume of the self-harvesting giant electrorheological fluid vibration isolator can be achieved.

In this embodiment, in order to receive external vibration and drive the floating segment 21 to move up and down, the bottom end of the actuating segment 22 of the shaft assembly is directly or indirectly fixedly connected to the floating segment 21, the top end of the actuating segment 22 penetrates through the housing 10 and extends to the outside of the housing 10 so as to receive and transmit the external vibration, the actuating segment 22 has a telescopic degree of freedom relative to the housing 10, and the telescopic degree of freedom enables the actuating segment 22 to slide up and down relative to the housing 10 under the excitation of external force and drive the floating segment 21 to move up and down in the energy harvesting chamber, so that an electric field is generated between the first polar plate assembly and the second polar plate assembly, the first polar plate assembly and the second polar plate assembly can be at least partially overlapped in the longitudinal projection direction and have an overlapped area, and the giant electrorheological fluid between the overlapped areas of the first polar plate assembly 24 and the second polar plate assembly is distorted under the excitation of the electric field so as to act on the first polar plate assembly and provide corresponding damping force for the first polar plate assembly, so as to play the role of dissipating external vibration energy.

In this embodiment, in order to enable the shaft assembly to realize automatic reset after being excited to move downwards by external force, a first diaphragm spring 231 is arranged between the bottom end of the floating section 21 and the housing 10, a second diaphragm spring 232 is arranged between the top end of the floating end and the housing 10, and the first diaphragm spring 231 and the second diaphragm spring 232 apply upward and downward reset forces to the floating unit respectively, so that the floating unit can realize automatic reset after being vibrated by external force, and the first diaphragm spring 231 and the second diaphragm spring 232 are arranged, so that the volume of the self-harvesting giant electrorheological fluid vibration isolator is greatly reduced, and the first diaphragm spring 231 and the second diaphragm spring 232 have the advantages of being difficult to deform at high frequency and simultaneously effectively reducing mechanical deformation caused by heating relative to the traditional coil springs, thus being very suitable for the application scenarios of high voltage, high frequency and heavy load of the giant electrorheological fluid damper.

The working principle of the self-energy-harvesting giant electrorheological fluid vibration isolator provided by the embodiment is as follows: under the action of external excitation, the shaft assembly drives the first polar plate assembly and the coil assembly to move relative to the second polar plate assembly, at this time, the coil assembly cuts the magnetic field to generate induced electromotive force, and the first output end and the second output end of the coil assembly are respectively electrically connected with the first polar plate assembly and the second polar plate assembly, so that the first polar plate assembly and the second polar plate assembly can generate an electric field, under the action of the electric field, the viscosity characteristic of the giant electrorheological fluid is enhanced, damping force is generated between the first polar plate assembly and the second polar plate assembly to inhibit vibration, and when the external excitation is increased, larger induced electromotive force is correspondingly generated, and meanwhile, larger damping force is also generated, so that the giant electrorheological fluid achieves closed-loop adjustment.

In addition, to further compress the volume of the housing, the cross section of the energy harvesting chamber is configured to be circular, the first polar plate assembly comprises a plurality of groups of first polar plates 24 which are parallel to each other, the second polar plate assembly comprises a plurality of groups of second polar plates 25 which are parallel to each other, the first polar plates 24 and the second polar plates 25 are alternately distributed along the axial direction of the floating section 21, and a rheological gap for accommodating giant electrorheological fluid exists between the first polar plates 24 and the second polar plates 25.

In this embodiment, the first polar plate 24 includes two oppositely disposed first sector plates 241, the inner side surfaces of the first sector plates 241 are fixedly connected to the shaft assembly, and the outer end surfaces of the first sector plates 241 are in clearance fit with the inner wall of the housing 10; the second polar plate 25 comprises two second sector plates 251 oppositely arranged, the outer side surfaces of the second sector plates 251 are fixedly connected to the inner wall of the shell 10, the inner side surfaces of the second sector plates 251 are in clearance fit with the outer side surfaces of the shaft assemblies, and the structural design can enable the whole structure of the energy harvesting chamber to be compact, and can greatly reduce the whole volume of the self-harvesting giant electrorheological fluid vibration isolator.

Example 2

Referring to fig. 1 to 3, in order to solve the defect that the damping force of the giant electrorheological fluid vibration isolator in the prior art is not adjustable, the present embodiment further provides a self-energy-harvesting giant electrorheological fluid vibration isolator with adjustable damping force on the basis of embodiment 1, which adjusts the damping force by adjusting the overlapping area of the first polar plate 24 and the second polar plate 25 in the longitudinal projection direction, specifically:

the actuating section 22 of the shaft assembly is rotatable relative to the housing 10, so that the shaft assembly has a rotational degree of freedom relative to the housing 10 as a whole, and when the shaft assembly rotates, all the first polar plates 24 on the shaft assembly are driven to rotate relative to the second polar plates 25, so that the overlapping area of the first polar plates 24 and the second polar plates 25 is changed, correspondingly, the damping force provided by the giant electrorheological fluid between the first polar plates 24 and the second polar plates 25 is correspondingly increased or decreased, and therefore, the self-energy-harvesting giant electrorheological fluid vibration isolator is convenient for adjusting the damping force, and the flexibility is greatly improved.

It should be noted that, the actuating section 22 of the floating unit is rotatably connected to the housing 10, and the rotary connection is a prior art, so that a detailed description thereof is omitted herein. In addition, in certain other embodiments of the present application, a drive assembly may be further provided to drive the actuating section 22 to rotate relative to the housing 10, or a locking structure may be provided on the housing 10 for locking the position of the actuating section 22 after the actuating section 22 rotates relative to the housing 10, which is not departing from the inventive concept of the present application and is intended to be within the scope of the present application.

Example 3

Referring to fig. 4, based on the above embodiment 1, the present application further provides a self-energy-harvesting giant electrorheological fluid vibration isolator, which is different from the self-energy-harvesting giant electrorheological fluid vibration isolator provided in embodiment 1 in that the electrode plate design is different, specifically:

in this embodiment, the first polar plate assembly includes a first spiral blade 261 that is continuously disposed, the coil assembly is located outside the first spiral blade 261, and the first spiral blade 261 is fixedly connected to the shaft assembly through a connecting rod, so that the first spiral blade 261 can move up and down along with the shaft assembly. The second pole plate assembly comprises at least one section of second helical blade 262 arranged in series, the second helical blade 262 is parallel to the second helical blade 262, the outer end surface of the second helical blade 262 can be fixedly connected to the inner wall of the shell 10, and meanwhile, the magnetic field in the energy capturing chamber is provided by the second helical blade 262.

In this embodiment, a rheological gap for accommodating the giant electrorheological fluid is provided between the first spiral blade 261 and the second spiral blade 262, and the first output end and the second output end of the coil assembly are respectively electrically connected to the first spiral blade 261 and the second spiral blade 262, so when the shaft assembly drives the first spiral blade 261 and the coil assembly to move up and down, an electric field is generated between the first spiral blade 261 and the second spiral blade 262, and the giant electrorheological fluid in the rheological gap is distorted to provide a corresponding damping force.

Example 4

Referring to fig. 4, in order to facilitate adjustment of damping force to improve flexibility, the present embodiment further provides a self-energy-harvesting giant electrorheological fluid vibration isolator with adjustable damping force on the basis of embodiment 3, which adjusts damping force by adjusting the overlapping area of the first spiral blade 261 and the second spiral blade 262 in the longitudinal projection direction, specifically:

in this embodiment, the actuating section 22 of the shaft assembly is rotatable relative to the housing 10, so that the shaft assembly has a rotational degree of freedom relative to the housing 10, and when the shaft assembly rotates, the first spiral blade 261 on the shaft assembly is driven to rotate relative to the second spiral blade 262, so as to adjust the stagger angle between the first spiral blade 261 and the second spiral blade 262, thereby changing the overlapping area of the first polar plate 24 and the second polar plate 25, and correspondingly, the damping force provided by the giant electrorheological fluid between the first polar plate 24 and the second polar plate 25 is correspondingly increased or decreased.

It should be noted that, the actuating section 22 of the floating unit is rotatably connected to the housing 10, and a specific connection manner of the rotational connection is a prior art, so that a detailed description thereof is omitted herein.

The above embodiments are only for illustrating the technical solution of the present application and not for limiting the same, and although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present application, which is intended to be covered by the scope of the claims of the present application. The technology, shape, and construction parts of the present application, which are not described in detail, are known in the art.

Claims (10)

1. The self-energy-harvesting giant electrorheological fluid vibration isolator comprises a shell (10), and is characterized by further comprising:

an energy harvesting chamber formed within the housing (10) and configured to hold a giant electrorheological fluid and having a magnetic field therein;

a floating unit comprising a shaft assembly including at least a floating segment (21) disposed within the energy harvesting chamber and being excitable by an external force so as to move downwardly relative to the housing (10), the floating segment (21) having a coil assembly and a first plate assembly connected thereto, the coil assembly moving with the floating segment (21) to generate an induced electromotive force, the coil assembly having a first output and a second output, the first output being connected to the first plate assembly;

the second polar plate assembly is arranged in the energy harvesting chamber and fixedly connected to the shell (10), and the second polar plates (25) are electrically connected to the second output end;

the first and second pole plate assemblies are at least partially overlapping in a longitudinal projection direction.

2. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: the coil assembly comprises a plurality of groups of induction coils (211), wherein the induction coils (211) are fixedly connected to the floating section (21).

3. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: the shaft assembly further comprises an actuating section (22) arranged at the top end of the floating section (21), the bottom end of the actuating section (22) is fixedly connected to the floating section (21), the top end of the actuating section (22) penetrates through the shell (10) and extends to the outside of the shell (10), the actuating section (22) has a telescopic degree of freedom relative to the shell (10), and the actuating section (22) can slide up and down relative to the shell (10) under the excitation of external force.

4. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: a self-resetting assembly is also included for providing a driving force to the shaft assembly in a direction opposite to the direction of the external force excitation.

5. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: the first polar plate assembly comprises a plurality of groups of first polar plates (24) which are parallel to each other, the second polar plate assembly comprises a plurality of groups of second polar plates (25) which are parallel to each other, the first polar plates (24) and the second polar plates (25) are alternately distributed along the axial direction of the shaft assembly, rheological gaps for accommodating giant electrorheological fluid exist between the first polar plates (24) and the second polar plates (25), and the first polar plates (24) and the second polar plates (25) can be at least partially overlapped in the longitudinal projection direction.

6. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 5, wherein: the cross section of the energy harvesting chamber is circular, the shaft assembly is arranged in the center of the energy harvesting chamber, the first polar plate (24) at least comprises a first sector plate (241), the inner side surface of the first sector plate (241) is fixedly connected to the shaft assembly, and the outer end surface of the first sector plate (241) is in clearance fit with the inner wall of the shell (10); the second polar plate (25) at least comprises a second sector plate (251), the outer side surface of the second sector plate (251) is fixedly connected to the inner wall of the shell (10), and the inner side surface of the second sector plate (251) is in clearance fit with the outer side surface of the shaft assembly.

7. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: the first polar plate assembly comprises at least one continuous first helical blade (261), the second polar plate assembly comprises at least one continuous second helical blade (262), and the first helical blade (261) and the second helical blade (262) have overlapping areas along the longitudinal projection direction.

8. The self-energy-harvesting giant electrorheological fluid vibration isolator of claim 1, wherein: the shaft assembly also has a rotational degree of freedom relative to the housing (10) such that the shaft assembly can drive the first plate assembly to rotate relative to the housing (10) to adjust the overlap area of the first and second plate assemblies in the longitudinal projection direction.

9. Use of a self-energy-harvesting giant electrorheological fluid vibration isolator as claimed in any one of claims 1 to 8 in vibration-resistant and vibration-damping devices.

10. An anti-vibration and vibration-reduction method is characterized in that: the use of a self-harvesting giant electrorheological fluid vibration isolator according to any one of claims 1 to 8 or an anti-vibration damping device according to claim 9 for dissipating vibration energy.