CN207161606U - A kind of magneto-rheological vibration damper of external coil - Google Patents
A kind of magneto-rheological vibration damper of external coil Download PDFInfo
- Publication number
- CN207161606U CN207161606U CN201720847038.1U CN201720847038U CN207161606U CN 207161606 U CN207161606 U CN 207161606U CN 201720847038 U CN201720847038 U CN 201720847038U CN 207161606 U CN207161606 U CN 207161606U
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- Prior art keywords
- piston
- sleeve
- coil
- hydraulic cylinder
- magneto
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Classifications
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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
-
- 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
- F16F9/42—Cooling arrangements
-
- 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
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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 kind of magneto-rheological vibration damper of external coil is the utility model is related to, including：Hydraulic cylinder,Floating piston,Piston,Piston rod,Closure,Coil,Outer cylinder tube,Dust ring,Outside end cap,Bottom locating part,Nut and sleeve,Floating piston plays a part of separation compensation air chamber and hydraulic cavities,Piston is connected with piston rod,Bottom is fixed on the locating part of bottom by nut,Bottom locating part is fixedly connected with outer cylinder tube,Sleeve is cased with outside hydraulic cylinder,Twin-stage coil is disposed with sleeve,Sleeve both ends are provided with dust ring,Piston is located at twin-stage coil middle position,When shock absorber works,Hydraulic cylinder is relative to outer cylinder tube and reciprocating motion of the pistons,By controlling the size of outer coil current to control the size by damp channel magnetic field between piston and hydraulic cylinder,So as to change the characteristic of magnetic flow liquid,Reach the purpose of control damping force size,The structure is easy for installation,It is simple in construction,Reduce production and maintenance cost,Service life is grown.
Description
Technical field
The invention belongs to vehicle vibration damping technical field, more particularly to a kind of magneto-rheological vibration damper of external coil.
Background of invention
With the continuous popularization and application of automobile, requirement of the consumer for automobile also improves constantly, the comfortableness of automobile with
Stability is of increasing concern.In order to improve the driver comfort of automobile and control stability, researcher and major parts
Supplier continually develops new vehicle vibration damping technology.Magneto-rheological vibration damper exists as a kind of adjustable intelligent shock absorber of damping
Application on automotive suspension vibration insulating system is more and more extensive.
Existing magneto-rheological vibration damper passes through the continuous Improvement of more than 20 years, has been able to meet vehicle in performance
The requirement of design, but the deficiency in structure increases the process and assemble difficulty of magneto-rheological vibration damper, it is unfavorable so as to add cost
In further genralrlization application, such as the magneto-rheological vibration damper piston structure that granted patent CN201010621508.5 is introduced is with regard to generation
The table design feature of existing magneto-rheological vibration damper, i.e., by piston, circumferentially fluting arranges coil, and piston rod inner opens elongated hole use
Carry out extraction wire.The program is compact-sized, but piston structure is complicated, and difficulty of processing is big, especially piston rod, the processing of elongated hole
Cost is higher and has more limitation in structure optimization.Meanwhile vibration energy is converted into heat by shock absorber by damping action
It can dissipate, but temperature rise can have a strong impact on the performance of shock absorber.Because producing magnetic field using coil, coil has heat production in itself
It is raw, coil is arranged in inside hydraulic cylinder, caused heat can be further exacerbated by the temperature rise effect in shock absorber, reduce vibration damping
Device performance.
Therefore, design different structure magneto-rheological vibration damper solved the problems, such as it is existing be it is very necessary, have it is wide
Application prospect and economic value.
The content of the invention
In order to solve the above problems, the present invention proposes a kind of magneto-rheological vibration damper of external coil, and the shock absorber is by coil
The outside of hydraulic cylinder is arranged in, by cleverly structure design, magneto-rheological vibration damper has been reached due performance will
Ask, while there is the advantages of simple in construction, radiating is convenient, cost is relatively low, is easy to safeguard.
In order to achieve the above object, the technical scheme is that：
A kind of magneto-rheological vibration damper of external coil, including：Hydraulic cylinder, floating piston, piston, piston rod, closure,
Coil, outer cylinder tube, dust ring, outside end cap, bottom locating part, nut and sleeve, the piston are connected with piston rod, are located at
Inside hydraulic cylinder, the piston rod is reached outside hydraulic cylinder through closure, and the outer cylinder tube bottom passes through the nut
It is fixed on the bottom locating part, the bottom locating part is fixedly connected with the outer cylinder tube, outside the hydraulic cylinder
Sleeve is cased with, twin-stage coil is disposed with the sleeve, piston is located at twin-stage coil middle position, piston and hydraulic cylinder inwall
Between be provided with gap, the sleeve is fixed on inside the outer cylinder tube, and sleeve upper and lower ends are provided with dust ring, the floating
Piston is arranged in hydraulic cylinder.
The geo-stationaries such as the piston, piston rod, sleeve, coil, outer cylinder tube, and ensure that horizontal direction upper piston is located at
Twin-stage coil middle position.The cartridge exterior is smooth, cylindrical peripheral surface, and inside includes successively from top to bottom：First dust ring is recessed
Groove, first coil groove, guide ring, the second coil recess, the second dust ring groove.The sleeve has coil, dust-proof simultaneously
Circle installation positioning and the effect of the hydraulic cylinder motion guide.Axial notch is provided with the sleeve inner guide ring, to
Arrange connecting wire.The outside end cap has the function of positioning the sleeve, the groove formed after mounting with the sleeve
For installing the dust ring.The outer cylinder tube inner upper end internal diameter is big, and bottom diameter is small, outside upper-end inner diameter and the sleeve
Footpath is identical, is boss structure at internal diameter change, coordinates the fixed sleeve with the outside end cap.
The beneficial effects of the invention are as follows：
1st, built-in coil is changed to external, simplifies the internal structure of magneto-rheological vibration damper, reduce processing and assembling
Difficulty, process time and processing cost are saved.
2nd, coil is external, can be repaired when coil breaks down, and does not interfere with damper fluid pressure cylinder interior knot
Structure, it will not also pollute magnetic flow liquid.
3rd, be advantageous to coil heat to scatter and disappear, magnetic flow liquid will not be heated, be advantageous to shock absorber radiating with maintaining holding for performance
Long stability.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is sleeve part sectional view of the present invention.
Fig. 3 is tube-in-tube structure figure of the present invention.
Fig. 4 is the magnetic field structure schematic diagram of the present invention.
In figure：1 --- hydraulic cylinder, 2 --- floating piston, 3 --- outside end cap, 4 --- dust ring, 5 --- coil,
6 --- sleeve, 7 --- piston, 8 --- protective layer, 9 --- piston rod, 10 --- closure, 11 --- outer cylinder tube,
12 --- nut, 13 --- bottom locating part, 14 --- compensation air chamber, 15 --- hydraulic cavities, 16 --- wire, 17 --- damping
Passage, 18 --- gap, 600 --- the first dust ring groove, 601 --- first coil groove, 602 --- axial notch,
603 --- the second coil recess, 604 --- the second dust ring groove, 605 --- guide ring.
Embodiment
The present invention is expanded on further with reference to the accompanying drawings and detailed description, it should be understood that following embodiments are only used
In the present invention but it is not used in limitation the scope of the present invention.It should be noted that the word " preceding ", " " rear " used below in description,
"left", "right", "up" and "down" refer to the direction represented in accompanying drawing.
A kind of magneto-rheological vibration damper of external coil as shown in Figure 1, including：Hydraulic cylinder 1, floating piston 2, piston 7,
Piston rod 9, closure 10, coil 5, outer cylinder tube 11, dust ring 4, outside end cap 3, bottom locating part 13, nut 12 and sleeve
6.Floating piston 2 plays a part of separation compensation air chamber 14 and hydraulic cavities 15, and piston 7 is connected with piston rod 9, positioned at hydraulic cylinder
Inside 1, piston rod 9 is reached outside hydraulic cylinder 1 through closure 10, and bottom is fixed on bottom locating part 13 by nut 12,
Bottom locating part 13 is fixedly connected with outer cylinder tube 11.Sleeve 6 is cased with outside hydraulic cylinder 1, twin-stage coil is disposed with sleeve
5, sleeve 6 is fixed on inside outer cylinder tube 11 by the cooperation of outer cylinder tube 11 and outside end cap 3, and both ends are provided with dust ring 4.
As shown in Fig. 2 the geo-stationary such as piston 7, piston rod 9, sleeve 6, coil 5, outer cylinder tube 11, and ensure level side
It is located at two middle positions of coil 5 to upper piston 7, gap 18, the surface of coil 5 and axle is provided between piston and hydraulic cylinder inwall
Matcoveredn is applied into groove 602, for protecting wire 16 and coil 5.Dust ring 4 is arranged in the both ends of sleeve 6, plays dust-proof close
The effect of envelope, the friction for preventing dust, particulate from entering between the increase guide ring 605 of sleeve 6 and hydraulic cylinder 1.
As shown in figure 3, the outside of sleeve 6 is smooth, cylindrical peripheral surface, inside includes successively from top to bottom：First dust ring groove
600th, first coil groove 601, guide ring 605, the second coil recess 603, the second dust ring groove 604, two coils are set
In first coil groove 601, the second coil recess 603, the dust ring 4 is dust-proof mounted in the first dust ring groove 600, second
Enclose in groove 604, sleeve 6 has the function that installation positioning and the motion guide of hydraulic cylinder 1 of coil 5, dust ring 4, set simultaneously
Axial notch 602 is provided with inside cylinder 6, to arrange connection and extraction wire 16.Outside end cap 3 has the function of abutment sleeve 6,
The first dust ring groove 600 is formed with sleeve 6 after mounting to be used to dust ring 4 be installed, the upper-end inner diameter of outer cylinder tube 11 is big, lower end
Internal diameter is small, and upper-end inner diameter is identical with the external diameter of sleeve 6, is boss structure at internal diameter change, coordinates fixes sleeve 6 with outside end cap 3.
It is illustrated in figure 4 shock absorber magnetic field magnetic structure schematic diagram when magneto-rheological vibration damper coil 5 works.Two coils 5
Still reverse-winding is connected in series, caused magnetic field forms magnetic field structure as shown in Figure 4, magnetic field under the principle of homopolar-repulsion
From level between two coils 5 by hydraulic cylinder 1, and the damp channel 17 between piston 7 and hydraulic cylinder 1 is vertical, hydraulic cylinder
A virtual damp channel 17 is formed between wall and gap 18 in vivo.
When magneto-rheological vibration damper works, hydraulic cylinder 1 is in the presence of external force relative to piston 7 and the grade part of sleeve 6
Pump, compressing magnetic flow liquid makes shock absorber produce damping force by damp channel 17.By electric in control coil 5
The size of stream controls the magnetic field intensity by damp channel 17, so as to change the rheology of magnetic flow liquid in damp channel 17 spy
Property, and then change the damping force of shock absorber, so as to reach the purpose to damping force intelligent control.
Original internal coil is changed to external coil by the present invention, simplifies the internal structure of magneto-rheological vibration damper, is reduced
Processing and assembly difficulty, have been saved process time and processing cost, and easy to maintenance, will not also pollute magnetic flow liquid, line
Enclose the external coil heat that is advantageous to scatter and disappear, magnetic flow liquid will not be heated, be advantageous to shock absorber radiating with maintaining the lasting steady of performance
It is qualitative, extend service life.
Technological means disclosed in the present invention program is not limited only to the technological means disclosed in above-mentioned embodiment, in addition to
Formed technical scheme is combined by above technical characteristic.
Claims (5)
- A kind of 1. magneto-rheological vibration damper of external coil, it is characterised in that：Including：Hydraulic cylinder, floating piston, piston, piston Bar, closure, coil, outer cylinder tube, dust ring, outside end cap, bottom locating part, nut and sleeve, the piston and piston Bar is connected, and inside hydraulic cylinder, the piston rod is reached outside hydraulic cylinder through closure, and the outer cylinder tube bottom leads to Cross the nut to be fixed on the bottom locating part, the bottom locating part is fixedly connected with the outer cylinder tube, the liquid Sleeve is cased with outside cylinder pressure body, twin-stage coil is disposed with the sleeve, piston is located at twin-stage coil middle position, piston and liquid Gap is provided between pressure inboard wall of cylinder block, the sleeve is fixed on inside the outer cylinder tube, and sleeve upper and lower ends are provided with dust-proof Circle, the floating piston are arranged in hydraulic cylinder.
- A kind of 2. magneto-rheological vibration damper of external coil according to claim 1, it is characterised in that：The cartridge exterior is Smooth, cylindrical peripheral surface, inside include successively from top to bottom：First dust ring groove, first coil groove, guide ring, the second coil are recessed Groove, the second dust ring groove.
- A kind of 3. magneto-rheological vibration damper of external coil according to claim 1, it is characterised in that：The sleeve inner is led Axial notch is provided with to ring.
- A kind of 4. magneto-rheological vibration damper of external coil according to claim 3, it is characterised in that：In the axial notch Apply matcoveredn.
- A kind of 5. magneto-rheological vibration damper of external coil according to claim 1, it is characterised in that：In the outer cylinder tube Portion's upper-end inner diameter is big, and bottom diameter is small, and upper-end inner diameter is identical with the sleeve outer diameter, is boss structure at internal diameter change, with institute State outside end cap and coordinate the fixed sleeve.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847038.1U CN207161606U (en) | 2017-07-13 | 2017-07-13 | A kind of magneto-rheological vibration damper of external coil |
| PCT/CN2018/084834 WO2019011042A1 (en) | 2017-07-13 | 2018-04-27 | Magneto-rheological damper having external coils |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720847038.1U CN207161606U (en) | 2017-07-13 | 2017-07-13 | A kind of magneto-rheological vibration damper of external coil |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207161606U true CN207161606U (en) | 2018-03-30 |
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ID=61712557
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720847038.1U Active CN207161606U (en) | 2017-07-13 | 2017-07-13 | A kind of magneto-rheological vibration damper of external coil |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207161606U (en) |
| WO (1) | WO2019011042A1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228153A (en) * | 2017-07-13 | 2017-10-03 | 盐城市步高汽配制造有限公司 | A kind of magneto-rheological vibration damper of external coil |
| WO2019011042A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| CN110736682A (en) * | 2019-10-23 | 2020-01-31 | 合肥工业大学 | Magnetorheological suspensions flow mode rheology attribute testing arrangement |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6382369B1 (en) * | 2001-03-14 | 2002-05-07 | Delphi Technologies, Inc. | Magneto-rheological fluid damper with an external coil |
| US6497309B1 (en) * | 2001-08-13 | 2002-12-24 | Delphi Technologies, Inc. | Magneto-rheological damper with an external coil |
| CN101319699B (en) * | 2008-07-11 | 2010-04-14 | 重庆大学 | Magneto-rheological fluid shock absorber with annular external magnetic field generator |
| CN102155515A (en) * | 2011-04-19 | 2011-08-17 | 谭和平 | Magnetorheological damper with external electromagnet |
| CN103322114A (en) * | 2013-05-28 | 2013-09-25 | 吉林大学 | Spiral valve hole type magnetorheological damper |
| CN104963983A (en) * | 2015-05-14 | 2015-10-07 | 山东理工大学 | Coil externally-wrapping magnetorheological fluid damper |
| CN207161606U (en) * | 2017-07-13 | 2018-03-30 | 盐城市步高汽配制造有限公司 | A kind of magneto-rheological vibration damper of external coil |
| CN107228153A (en) * | 2017-07-13 | 2017-10-03 | 盐城市步高汽配制造有限公司 | A kind of magneto-rheological vibration damper of external coil |
-
2017
- 2017-07-13 CN CN201720847038.1U patent/CN207161606U/en active Active
-
2018
- 2018-04-27 WO PCT/CN2018/084834 patent/WO2019011042A1/en active Application Filing
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107228153A (en) * | 2017-07-13 | 2017-10-03 | 盐城市步高汽配制造有限公司 | A kind of magneto-rheological vibration damper of external coil |
| WO2019011042A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| WO2019011043A1 (en) * | 2017-07-13 | 2019-01-17 | 盐城市步高汽配制造有限公司 | Magneto-rheological damper having external coils |
| CN110736682A (en) * | 2019-10-23 | 2020-01-31 | 合肥工业大学 | Magnetorheological suspensions flow mode rheology attribute testing arrangement |
| CN110736682B (en) * | 2019-10-23 | 2022-01-11 | 合肥工业大学 | Magnetorheological suspensions flow mode rheology attribute testing arrangement |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2019011042A1 (en) | 2019-01-17 |
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