CN109058356B - Single-cylinder double-cavity reciprocating damper - Google Patents
Single-cylinder double-cavity reciprocating damper Download PDFInfo
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- CN109058356B CN109058356B CN201810978292.4A CN201810978292A CN109058356B CN 109058356 B CN109058356 B CN 109058356B CN 201810978292 A CN201810978292 A CN 201810978292A CN 109058356 B CN109058356 B CN 109058356B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/10—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium using liquid only; using a fluid of which the nature is immaterial
- F16F9/14—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect
- F16F9/16—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts
- F16F9/18—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein
- F16F9/19—Devices with one or more members, e.g. pistons, vanes, moving to and fro in chambers and using throttling effect involving only straight-line movement of the effective parts with a closed cylinder and a piston separating two or more working spaces therein with a single cylinder and of single-tube type
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/3207—Constructional features
- F16F9/3235—Constructional features of cylinders
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/36—Special sealings, including sealings or guides for piston-rods
- F16F9/368—Sealings in pistons
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16F—SPRINGS; SHOCK-ABSORBERS; MEANS FOR DAMPING VIBRATION
- F16F9/00—Springs, vibration-dampers, shock-absorbers, or similarly-constructed movement-dampers using a fluid or the equivalent as damping medium
- F16F9/32—Details
- F16F9/53—Means for adjusting damping characteristics by varying fluid viscosity, e.g. electromagnetically
- F16F9/532—Electrorheological [ER] fluid dampers
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Fluid-Damping Devices (AREA)
Abstract
A single-cylinder double-cavity reciprocating damper comprises a cylinder body and a piston arranged in the cylinder body, wherein a piston rod is fixed on the piston, and one end of the piston rod extends out of the cylinder body; one end of the cylinder body, which is close to the piston, is provided with an end cover for sealing, and the other end of the cylinder body is provided with a sealing piece for sealing; the piston is provided with a channel, a functional cavity filled with electrorheological fluid is arranged in the piston, and the functional cavity and the cylinder body realize sliding sealing; and the functional cavity and the cylinder body are provided with electrode units which are connected with the circuit and are used for forming an electric field; the end cover is positioned on one side of the cylinder body, an air cavity is arranged on the end cover, and a deformable part is arranged on one side of the air cavity facing the inside of the cylinder body; and the sealing element and the piston rod are in sliding sealing through a sealing sleeve. The invention isolates the damping cavity on the piston from the inner cavity of the cylinder body by improving the structure of the piston, can realize the damping effect by a small amount of electrorheological fluid damping fluid, and has controllable damping effect and simple sealing structure.
Description
Technical Field
The invention belongs to the technical field of damping equipment, and particularly relates to a single-cylinder double-cavity reciprocating damper.
Background
The damper is a device for providing resistance to movement and reducing movement energy. The method is widely applied to the industries of aerospace, aviation, war industry, guns, automobiles and the like. Dampers can be generally classified into: spring dampers, hydraulic dampers, impulse dampers, rotary dampers, wind dampers, viscous dampers, etc. Among them, the viscous damper is made based on the principle that the fluid movement, especially the fluid passing through the orifice, generates the throttling resistance, and is a damper related to the movement speed of the piston, and is widely applied.
In the prior art, the traditional viscous damper adopts a piston structure, the complex sealing structure needing matching has the defects of low linear velocity, failure of low-pressure sealing and the like, the cost is high, the maintenance is troublesome, and meanwhile, the piston device with the valve plate is not suitable for damping oil with particles such as electrorheological and magnetorheological. In addition, the cost of the functional liquid such as the electrorheological liquid, the magnetorheological fluid and the like is high, and the cost of the device is increased when the functional liquid is used in a large amount, so that the market competitiveness is reduced.
To above problem, this application has carried out further design to the attenuator structure among the prior art, has single section of thick bamboo double-chamber structure, when guaranteeing the damping effect, has reduced the quantity of functional liquid, has avoided complicated seal structure's use.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a single-cylinder double-cavity reciprocating damper which is simple in structure, low in cost, good in sealing effect and controllable in damping effect.
In order to solve the above technical problems, the present invention is solved by the following technical solutions.
A single-cylinder double-cavity reciprocating damper comprises a cylinder body and a piston arranged in the cylinder body, wherein a piston rod is fixed on the piston, and one end of the piston rod extends out of the cylinder body; one end of the cylinder body close to the piston is provided with an end cover for sealing, the other end of the cylinder body is provided with a sealing piece for sealing, wherein: the piston is provided with a channel which is communicated with two side cavities of the cylinder body inner cavity separated by the piston; a functional cavity filled with electrorheological fluid is arranged in the piston, and sliding sealing is realized between the functional cavity and the cylinder body; and the functional cavity and the cylinder body are provided with electrode units which are connected with the circuit and used for forming an electric field and are insulated with each other; the end cover is positioned on one side of the cylinder body, an air cavity communicated with an external air source/pressure source is arranged on the end cover, and a deformable part is arranged on one side of the air cavity facing the interior of the cylinder body; and the sealing element and the piston rod realize sliding sealing through a sealing sleeve.
In the traditional piston reciprocating type damping equipment, a cylinder body is only provided with one cavity which is filled with damping liquid, the damping liquid continuously passes through a piston and then flows in a front cavity and a rear cavity when the piston reciprocates, so that a damping effect is generated, a large amount of damping liquid is needed, and the cost is higher for a damper with electrorheological fluid as the damping liquid. In the invention, a single-cylinder double-cavity damper structure is adopted, wherein a single cylinder refers to a cylinder body (a piston cylinder), and a double cavity refers to a damper which is provided with a cylinder body inner cavity and a functional cavity, and the two cavities are isolated. When the piston is used, base oil mother liquid (such as silicone oil) is injected into the inner cavity of the cylinder body, electrorheological liquid is injected into the functional cavity, and the front cavity and the rear cavity of the inner cavity of the cylinder body are communicated through the channel, so that the reciprocating motion of the piston is not influenced. When the damping device works, electrorheological fluid in the functional cavity is in contact with the inner wall of the cylinder body to generate damping viscous force, and meanwhile, an electric field is generated between the electrode units between the functional cavity and the cylinder body, so that the aim of adjusting the damping force can be fulfilled by regulating and controlling the electric field. In the whole process, high-pressure gas (such as high-pressure nitrogen) is filled in the air cavity, the high-pressure gas enables the deformable part to be bulged to press the base oil mother liquid, the pressure intensity of the base oil mother liquid is higher than that of the electrorheological liquid in the functional cavity, the electrorheological liquid can be sealed in the functional cavity, and the use of a complex sealing structure is avoided.
Preferably, an electrode plate is arranged in the functional cavity, a gap is arranged between the electrode plate and the inner wall of the cylinder body, and the gap is communicated with the functional cavity through a through hole; the electrode plate and the inner wall of the cylinder body are respectively the positive pole and the negative pole of the electrode unit, and the damping force of the electrorheological fluid in the gap can be controlled through the change of the electric field intensity after the electrification.
Preferably, the electrode plate is connected with a conductive wire, and the conductive wire is connected with an external power supply after passing through a wire hole arranged in the piston rod.
Preferably, the electrode plate is insulated from the piston and the piston rod by an insulator.
Preferably, the piston and the inner wall of the cylinder body realize sliding seal through an insulating guide ring and/or a sealing disc, so that the electrorheological fluid is prevented from or hardly leaked.
Preferably, the piston is provided with a deformable pressure transmission sleeve, two sides of the pressure transmission sleeve are respectively a functional cavity and a cylinder inner cavity, and the pressure transmission sleeve can transmit the pressure of the base oil mother liquid and apply the pressure on the electrorheological fluid, so that the pressure of the electrorheological fluid can be controlled by controlling the pressure of the high-pressure gas in the gas cavity.
Preferably, the deformable part comprises a fitting part fitted with the inner wall of the cylinder body, a bent folded part and an inner concave part concave into the air cavity, so that the sealing performance is ensured, and the deformable part also has good deformation capacity.
Preferably, the sealing element comprises a guide sleeve and a second end cover which are assembled at the end part of the cylinder body; the linear bearing is arranged on the sealing element, so that the piston rod can extend and retract freely, and the sealing performance is good.
Preferably, the end cover is provided with a hanging ring sleeve on one side facing the outside of the cylinder body for assembly.
Preferably, the hoisting ring sleeve is assembled with the end cover through a threaded piece, and the threaded piece is provided with an air hole.
Compared with the prior art, the invention has the following beneficial effects: through the improvement to the piston structure, a single-cylinder double-cavity reciprocating damper is provided, a damping cavity on the piston is isolated from an inner cavity of a cylinder body, the damping effect can be realized through a small amount of electrorheological fluid damping liquid, the damping effect is controllable, and the sealing structure is simple.
Drawings
Fig. 1 is an external view schematically showing a damper according to the present invention.
Fig. 2 is a schematic view of the internal structure of the damper according to the present invention.
Fig. 3 is a sectional structural view of a damper in the present invention.
Fig. 4 is a schematic view of the end cap position in a cross-sectional structural view.
Fig. 5 is a schematic view of the piston position in a cross-sectional structural view.
Fig. 6 is a schematic view of the position of the seal member in a cross-sectional structural view.
Fig. 7 is a schematic end view of the damper of the present invention.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Referring to fig. 1 to 7, the single-cylinder double-chamber reciprocating damper of the present invention includes a cylindrical hollow cylinder 13, and a piston disposed in the cylinder 13 and reciprocating, wherein a piston rod 2 is fixed on the piston, and one end of the piston rod 12 extends out of the cylinder 13; an end cover for sealing is arranged at one end, close to the piston, of the cylinder body 13, and a sealing piece for sealing is arranged at the other end of the cylinder body 13, wherein the piston, the end cover, the sealing piece and the like have the following structures.
As shown in fig. 5, the piston is provided with a channel 39 formed by a pipe fitting, and the channel 39 is communicated with two side cavities 01 and 02 of which the cylinder inner cavity is divided by the piston; a functional cavity 03 filled with electrorheological fluid is arranged in the piston, and sliding sealing is realized between the functional cavity 03 and the cylinder body 13; and the functional cavity 03 and the cylinder body 13 are provided with electrode units which are connected with a circuit and are used for forming an electric field and are insulated with each other; specifically, an electrode plate 19 is arranged in the functional cavity 03, a gap is arranged between the electrode plate 19 and the inner wall of the cylinder body, and the gap is communicated with the functional cavity 03 through a through hole 191; the electrode plate 19 and the inner wall of the cylinder body are respectively the positive pole and the negative pole of the electrode unit, and the damping force of the electrorheological fluid in the gap can be controlled through the change of the electric field intensity after the electrification. The electrode plate 19 is connected to a conductive wire 1 through a conductive bolt 37, the conductive wire 1 is connected to an external power source after passing through a wire hole provided in the piston rod 2, and the electrode plate 19 is insulated from the piston and the piston rod 2 by insulators 28 and 29.
In addition, the sliding seal is realized between the piston and the inner wall of the cylinder body through the insulating guide ring 17 and/or the sealing discs 21 and 38; the piston is provided with a deformable pressure transmission sleeve 16, the pressure transmission sleeve 16 is fixed on one side of the piston through a bolt 14 and a gasket 15, and the bolt 14 is provided with a through hole, so that two sides of the pressure transmission sleeve 16 are respectively a functional cavity 03 and a cylinder inner cavity. The piston and the piston rod 2 are fixed by a conventional bolt, nut and nut gasket 31, an electrode cover 33 is arranged on the fixed end face, and the electrode cover 33 is abutted against the sealing disc 21 to enhance the overall firmness. A sealing ring for sealing can be arranged on the contact surface of the piston and the piston rod 2, correspondingly, a sealing ring for sealing can be arranged on the contact surface of the piston and the inner wall of the cylinder body, and a sealing ring for sealing can be arranged on the contact surface of the electrode cover 33 on the peripheral structure.
In the above structure, specifically, the piston is in a cylindrical structure matched with a cylindrical cylinder inner cavity, the upper end and the lower end of the piston are in sliding seal with the inner wall of the cylinder through the sealing discs 21 and 38, the annular electrode plate 19 is arranged between the sealing discs 21 and 38, the electrode plate 19 is provided with a plurality of through holes 191 communicated with the functional cavity 03, and a gap between the electrode plate 19 and the inner wall of the cylinder is filled with electrorheological fluid, so that a damping effect is achieved during reciprocating motion of the piston.
As shown in fig. 4, the end cover 25 is screwed on one side of the cylinder 13, the end cover 25 is provided with an air chamber 259 communicated with an external air/pressure source, and one side of the air chamber 259 facing the inside of the cylinder 13 is a deformable member 23 (which may be made of flexible rubber); the deformable member 23 includes an attaching portion 231 attached to the inner wall of the cylinder body, a folded corrugated portion 232, and an inner concave portion 233 recessed into the air chamber 259. The side of the end cap facing the outside of the cylinder 13 is provided with a lifting ring sleeve 27, the lifting ring sleeve 27 is assembled with the end cap through a screw, and the screw is provided with an air hole 26. Further, in order to improve the sealing performance, a seal ring is provided on the contact surface between the end cover 25 and the cylinder 13. The side of the cylinder body 13 where the upper end cap is located is provided with an assembly plate 22 for positioning and assembly.
As shown in fig. 6, the seal realizes sliding seal with the piston rod 2 through a sealing sleeve. Specifically, the sealing element comprises a guide sleeve 8 and a second end cover 4 which are assembled at the end part of the cylinder body 13; and a linear bearing 7 is arranged on the sealing element. The sealing sleeve specifically comprises a dustproof ring 3, sealing gaskets 6,10 and 11 and a retainer ring 12, plays a role in sealing, and is correspondingly provided with the sealing ring between the guide sleeve 8 and the inner wall of the cylinder body, so that the sealing performance is improved.
In the traditional piston reciprocating type damping equipment, a cylinder body is only provided with one cavity which is filled with damping liquid, the damping liquid continuously passes through a piston and then flows in a front cavity and a rear cavity when the piston reciprocates, so that a damping effect is generated, a large amount of damping liquid is needed, and the cost is higher for a damper with electrorheological fluid as the damping liquid.
As can be seen from the above structural description, in the present invention, a damper structure of a single cylinder and double chambers is adopted, where a single cylinder refers to a cylinder (piston cylinder), and a double chamber refers to a damper having two chambers, namely a cylinder inner chamber and a functional chamber, and the two chambers are isolated. When the piston is used, base oil mother liquid (such as silicon oil) is injected into the inner cavity of the cylinder body, electrorheological liquid is injected into the functional cavity 03, and the front cavity and the rear cavity of the inner cavity of the cylinder body are communicated through the channel 39, so that the reciprocating motion of the piston is not influenced.
When the damping device works, the electrorheological fluid in the functional cavity 03 is in contact with the inner wall of the cylinder body to generate damping viscous force, and meanwhile, an electric field is generated between the electrode units between the functional cavity 03 and the cylinder body 13, so that the aim of adjusting the damping force can be fulfilled by regulating and controlling the electric field. In the whole process, high-pressure gas (such as high-pressure nitrogen) is filled in the air cavity, the high-pressure gas enables the deformable part to be bulged to press the base oil mother liquid, the pressure intensity of the base oil mother liquid is higher than that of the electrorheological liquid in the functional cavity, the electrorheological liquid can be sealed in the functional cavity, and the use of a complex sealing structure is avoided. Meanwhile, the pressure of the electrorheological fluid can be controlled by controlling the pressure of the high-pressure gas in the gas chamber 259 through the arrangement of the pressure transmission sleeve 16.
As mentioned above, the single-cylinder double-cavity reciprocating damper greatly saves the electrorheological fluid damping fluid, improves the working environment of the sealing element and improves the sealing effect by redesigning the structure. The damping liquid is sealed through the high-pressure base oil mother liquid, the original complex sealing structure is simplified, and the sealing structure is optimized. When the damper is used, the suspension ring sleeve 27 is fixed on a mechanical structure, the piston rod 2 is connected with a movable execution device, then the voltage is automatically controlled by using a sensor, and the viscosity of damping liquid is increased when the electric field force is increased, so that the damping force is controlled and adjusted.
The scope of the present invention includes, but is not limited to, the above embodiments, and the present invention is defined by the appended claims, and any alterations, modifications, and improvements that may occur to those skilled in the art are all within the scope of the present invention.
Claims (10)
1. A single-cylinder double-cavity reciprocating damper comprises a cylinder body (13) and a piston arranged in the cylinder body (13), wherein a piston rod (2) is fixed on the piston, and one end of the piston rod (12) extends out of the cylinder body (13); the one end that is close to the piston on cylinder body (13) is equipped with the end cover that is used for sealing, and the other end on cylinder body (13) is equipped with and is used for sealed sealing member, its characterized in that:
the piston is provided with a channel (39), and the channel (39) is communicated with two side cavities of the cylinder body, wherein the two side cavities are separated by the piston; a functional cavity (03) filled with electrorheological fluid is arranged in the piston, and sliding sealing is realized between the functional cavity (03) and the cylinder body (13); and the functional cavity (03) and the cylinder body (13) are provided with electrode units which are connected with a circuit and are used for forming an electric field and are insulated with each other;
the end cover is positioned on one side of the cylinder body (13), an air cavity (259) communicated with an external air source/pressure source is arranged on the end cover, and a deformable part (23) is arranged on one side, facing the interior of the cylinder body (13), of the air cavity (259);
and the sealing element and the piston rod (2) realize sliding sealing through a sealing sleeve.
2. The single-cylinder double-chamber reciprocating damper as claimed in claim 1, wherein an electrode plate (19) is arranged in the functional chamber (03), a gap is arranged between the electrode plate (19) and the inner wall of the cylinder body, and the gap is communicated with the functional chamber (03) through a through hole (191); the electrode plate (19) and the inner wall of the cylinder body are respectively the positive pole and the negative pole of the electrode unit.
3. The single-cylinder double-chamber reciprocating damper according to claim 2, wherein the electrode plate (19) is connected to an electrically conductive wire (1), and the electrically conductive wire (1) is connected to an external power source after passing through a wire hole provided in the piston rod (2).
4. A single-cylinder dual-chamber reciprocating damper according to claim 2, wherein said electrode plate (19) is insulated from the piston and the piston rod (2) by insulators (28, 29).
5. A single-cylinder dual-chamber reciprocating damper as claimed in claim 1, wherein said piston is slidably sealed with the inner wall of the cylinder by means of an insulating guide ring (17) and/or a sealing disc (21, 38).
6. A single-cylinder double-chamber reciprocating damper according to any one of claims 1 to 5, characterized in that the piston is provided with a deformable pressure transmission sleeve (16), and the two sides of the pressure transmission sleeve (16) are respectively a function chamber (03) and a cylinder inner chamber.
7. The single-cylinder dual-chamber reciprocating damper according to claim 1, wherein the deformable member (23) comprises an abutting portion (231) abutting the inner wall of the cylinder body, a folded corrugated portion (232), and an inner concave portion (233) recessed into the air chamber (259).
8. The single-cylinder dual-chamber reciprocating damper according to claim 1, wherein the sealing member comprises a guide bush (8) and a second end cap (4) fitted to the end of the cylinder body (13); and a linear bearing (7) is arranged on the sealing element.
9. A single-cylinder dual-chamber reciprocating damper as claimed in claim 1, wherein said end cap is fitted with a hanging ring sleeve (27) on the side facing the outside of the cylinder body (13).
10. The single-cylinder dual-chamber reciprocating damper according to claim 9, wherein the suspension ring sleeve (27) is assembled with the end cap by a screw member, and the screw member is provided with the air hole (26).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201810978292.4A CN109058356B (en) | 2018-08-27 | 2018-08-27 | Single-cylinder double-cavity reciprocating damper |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810978292.4A CN109058356B (en) | 2018-08-27 | 2018-08-27 | Single-cylinder double-cavity reciprocating damper |
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| CN109058356A CN109058356A (en) | 2018-12-21 |
| CN109058356B true CN109058356B (en) | 2020-04-10 |
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| CN201810978292.4A Active CN109058356B (en) | 2018-08-27 | 2018-08-27 | Single-cylinder double-cavity reciprocating damper |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109821185A (en) * | 2019-01-23 | 2019-05-31 | 温州盈和创新科技有限公司 | A kind of VR marking vehicle |
| CN110579425B (en) * | 2019-10-23 | 2022-03-15 | 合肥工业大学 | Electrorheological fluid flow mode rheological property testing device |
| CN111391738B (en) * | 2020-04-09 | 2022-08-12 | 南安市恒创机械设计有限公司 | Buffering bus handle |
| CN111688076B (en) * | 2020-04-27 | 2021-10-01 | 海安迪斯凯瑞探测仪器有限公司 | Anti-deformation high-precision integrated automatic die assembly system |
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| US6065572A (en) * | 1995-11-13 | 2000-05-23 | The Lubrizol Corporation | Polymeric materials to self-regulate the level of polar activators in electrorheological fluids |
| EP0769637B1 (en) * | 1995-10-17 | 2001-03-21 | BRIDGESTONE/FIRESTONE, Inc. | Splined vibration damping device using ER fluids |
| CN2648176Y (en) * | 2003-03-11 | 2004-10-13 | 中国人民解放军后勤工程学院 | Air-filling current change vibration absorber |
| CN106979271A (en) * | 2017-05-04 | 2017-07-25 | 湘潭大学 | A kind of novel piston inner flow passage magneto-rheological vibration damper |
| CN206830715U (en) * | 2017-06-28 | 2018-01-02 | 华东交通大学 | Double magnetic fields MR dampers with mixing fluid course |
| CN108119595A (en) * | 2018-02-11 | 2018-06-05 | 宁波麦维科技有限公司 | Reciprocating electro-rheological fluid damper |
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2018
- 2018-08-27 CN CN201810978292.4A patent/CN109058356B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0769637B1 (en) * | 1995-10-17 | 2001-03-21 | BRIDGESTONE/FIRESTONE, Inc. | Splined vibration damping device using ER fluids |
| US6065572A (en) * | 1995-11-13 | 2000-05-23 | The Lubrizol Corporation | Polymeric materials to self-regulate the level of polar activators in electrorheological fluids |
| CN2648176Y (en) * | 2003-03-11 | 2004-10-13 | 中国人民解放军后勤工程学院 | Air-filling current change vibration absorber |
| CN106979271A (en) * | 2017-05-04 | 2017-07-25 | 湘潭大学 | A kind of novel piston inner flow passage magneto-rheological vibration damper |
| CN206830715U (en) * | 2017-06-28 | 2018-01-02 | 华东交通大学 | Double magnetic fields MR dampers with mixing fluid course |
| CN108119595A (en) * | 2018-02-11 | 2018-06-05 | 宁波麦维科技有限公司 | Reciprocating electro-rheological fluid damper |
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| CN109058356A (en) | 2018-12-21 |
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