CN201953899U - Magnetorheological damper with external electromagnet capable of sliding synchronously - Google Patents
Magnetorheological damper with external electromagnet capable of sliding synchronously Download PDFInfo
- Publication number
- CN201953899U CN201953899U CN2011201141085U CN201120114108U CN201953899U CN 201953899 U CN201953899 U CN 201953899U CN 2011201141085 U CN2011201141085 U CN 2011201141085U CN 201120114108 U CN201120114108 U CN 201120114108U CN 201953899 U CN201953899 U CN 201953899U
- Authority
- CN
- China
- Prior art keywords
- piston
- electromagnet
- external
- clutch release
- slave 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
Images
Abstract
The utility model discloses a magnetorheological damper with an external electromagnet capable of sliding synchronously, which comprises a working cylinder, a piston, two piston rods, an external sliding electromagnet and a support, wherein an outer shell of the external sliding electromagnet is cylindrical, at least two rectangular magnetic steel pieces are uniformly fixedly distributed on the inner circumference of the cylinder, pole shoes are fixed at one ends of the rectangular magnetic steel pieces, excitation coils and magnetization and degaussing coils are wound on the rectangular magnetic steel pieces, the piston is cylindrical, the external sliding electromagnet is mounted on the outer circumference of the working cylinder, and one end of the support is fixed with the external sliding electromagnet while the other end of the support is fixed with the tail end of one of the piston rods. When the piston rods drive the piston to move in the working cylinder, the piston rods simultaneously drive the external sliding electromagnet to slide synchronously outside the working cylinder, output damping force of the magnetorheological damper with the external electromagnet capable of sliding synchronously can be adjusted when the exciting current entering the excitation coils of the rectangular magnetic steel pieces on the external sliding electromagnet is adjusted.
Description
Technical field
The utility model belongs to a kind of MR damper, is specifically related to a kind of synchronous slip external electromagnet magnetorheological damper.
Background technique
The piston of common shearing valve type magneto-rheological damper adopts the dumbbell shaped structure usually as magnetic field generator, field coil just is wrapped in the dumbbell shaped middle of piston, when this MR damper is worked, field coil in clutch release slave cylinder will be subjected to long-time the washing away repeatedly of magnetic flow liquid and harmful effect that field coil is produced, common shearing valve type magneto-rheological damper is when the control electric power outputting current is zero (that is: field current is zero) simultaneously, because of the magnetic intensity in the gap between piston and clutch release slave cylinder is zero, the viscosity of the magnetic flow liquid in the gap is minimum and damping force is less, so, in case control power supply or piston field coil break down, the damping force of Yin Putong shearing valve type magneto-rheological damper output is less and be difficult to the proper functioning of the system that guarantees; Although common permanent magnet type magnetic current variable damper without field coil and not electric consumption just can produce certain damping force, owing to its damping force can not be carried out the remote stepless adjusting, and restricted application.
Summary of the invention
For the field coil that overcomes existing shearing valve type magneto-rheological damper be vulnerable to harmful effect that magnetic flow liquid washes away and when field current is zero damping force less, and existing permanent magnet type magnetic current variable damper damping force can not be carried out the deficiency that remote stepless is regulated, the utility model proposes a kind of synchronous slip external electromagnet magnetorheological damper, synchronously the external slip electromagnet of slip external electromagnet magnetorheological damper can utilize the control power supply to make it reach certain magnetic field intensity by filling degaussion coil and it being magnetized or demagnetize at any time, therefore, can at first make external slip electromagnet reach predetermined work magnetic intensity, and then regulate the control power supply and output on the external slip electromagnet size and Orientation of electric current in the field coil, just make the direction of the electromagnetic field that field coil produces and size is consistent with the magnetic field of external slip electromagnet or on the contrary, that is: reach the purpose that the size of the external slip electromagnet magnetorheological damper output of synchronous slip damping force is controlled by the magnetic intensity that strengthens or weaken external slip electromagnet, therefore, the external electromagnet magnetorheological damper that slides synchronously has the advantage of the energy-saving safe of the convenient control of common MR damper and permanent magnet type magnetic current variable damper simultaneously.
The technological scheme that the utility model adopted is as follows:
A kind of synchronous slip external electromagnet magnetorheological damper, it comprises clutch release slave cylinder, piston, two piston rods, external slip electromagnet, bearing support; The shell of described external slip electromagnet is a cylindrical shape, and uniform fixing at least two blocks of cuboid magnet steel on the inner circumference of cylindrical housing are fixed with pole shoe at the other end of cuboid magnet steel, be wound with field coil and fill degaussion coil on the cuboid magnet steel; External slip electromagnet is installed on the excircle of clutch release slave cylinder, and the radius of clutch release slave cylinder excircle is less than the radius of curvature of pole shoe and leave glade plane space; Piston is the cylinder bodily form, and the external diameter of piston is less than the internal diameter of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing; The axial length of external slip electromagnet equates with the axial length of piston, bearing support length and piston rod equal in length; Two piston rods are separately fixed at the two ends of piston, and the other end of two piston rods stretches out in clutch release slave cylinder by the seal arrangement and the bearing of clutch release slave cylinder end face; One end of bearing support and external slip electromagnet are fixed, and the end of the other end of bearing support and a piston rod is fixed; The shell and the pole shoe of piston, external slip electromagnet are made of permeability magnetic material, and clutch release slave cylinder is made of non-magnet_conductible material.
Because of bearing support length and piston rod equal in length, the end of the other end of bearing support and a piston rod is fixed, the axial length of external slip electromagnet equates with the axial length of piston, so, when a piston rod drive piston moves in clutch release slave cylinder, another root piston rod also drives external slip electromagnet by bearing support and does to slide synchronously outside clutch release slave cylinder, make the outer external slip electromagnet of interior piston of clutch release slave cylinder and clutch release slave cylinder remain relative static conditions in the axial direction, thereby the length of gap (damp channel) between piston external diameter and the clutch release slave cylinder internal diameter is immobilized, and it is stable that the magnetic intensity in gap (damp channel) keeps; Enter the field current size in the cuboid magnet steel field coil on the external slip electromagnet by adjustment, or fill demagnetization operation and make the cuboid magnet steel reach certain magnetic intensity by the degaussion coil that fills to cuboid magnet steel on the external slip electromagnet, make between piston external diameter and the clutch release slave cylinder internal diameter magnetic intensity in the gap obtain changing, make the viscosity-modifying of the magnetic flow liquid in this gap, make the output damping force of synchronous slip external electromagnet magnetorheological damper obtain adjusting.
Function of the present utility model is achieved in that at first utilizes the control power supply that the degaussion coil that fills on the cuboid magnet steel on the external slip electromagnet is switched on, make the work magnetic intensity of cuboid magnet steel on the external slip electromagnet by magnetizing or demagnetizing and reach predetermined, like this, when the field coil no electric circuit of the cuboid magnet steel on the external slip electromagnet, external slip electromagnet with work magnetic intensity will produce certain magnetic field intensity on the gap of piston external diameter and clutch release slave cylinder internal diameter, the viscosity of the magnetic flow liquid in the gap is uprised, like this, when a piston rod drive piston moves in clutch release slave cylinder, another root piston rod also drives external slip electromagnet by bearing support and does to slide synchronously outside clutch release slave cylinder, make the outer external slip electromagnet of interior piston of clutch release slave cylinder and clutch release slave cylinder remain relative static conditions in the axial direction, the magnetic intensity in the gap can remain unchanged between piston external diameter and the clutch release slave cylinder internal diameter thereby make, and synchronous slip external electromagnet magnetorheological damper is moved under predetermined work damping force;
The field coil of the cuboid magnet steel on external slip electromagnet feeds forward current, when making the electromagnetic field that is produced after the field coil energising of the cuboid magnet steel on the external slip electromagnet consistent with the magnetic direction of cuboid magnet steel, this will make the magnetic intensity in piston external diameter and the clutch release slave cylinder internal diameter gap higher, the viscosity of the magnetic flow liquid in the gap is higher, in clutch release slave cylinder, move and drive external slip electromagnet and clutch release slave cylinder outside, during synchronous slip, will be subjected to bigger damping force when piston rod drives piston;
The field coil of the cuboid magnet steel on external slip electromagnet feeds back current, when making the magnetic direction of electromagnetic field that the field coil energising back of the cuboid magnet steel on the external slip electromagnet produced and cuboid magnet steel opposite, this will make the magnetic intensity in piston external diameter and the clutch release slave cylinder internal diameter gap reduce, the viscosity of the magnetic flow liquid in the gap descends, in clutch release slave cylinder, move and drive external slip electromagnet and clutch release slave cylinder outside, during synchronous slip, will be subjected to less damping force when piston rod drives piston;
The field coil of the cuboid magnet steel on external slip electromagnet feeds back current, when making the magnetic field equal and opposite in direction of electromagnetic field that the field coil energising back of the cuboid magnet steel on the external slip electromagnet produced and cuboid magnet steel and direction opposite, to make magnetic intensity in piston external diameter and the clutch release slave cylinder internal diameter gap drop to minimum like this and during near zero magnetic field, the viscosity minimum of the magnetic flow liquid in the gap, in clutch release slave cylinder, move and drive external slip electromagnet and clutch release slave cylinder outside, during synchronous slip, will be subjected to minimal damping power when piston rod drives piston;
Therefore, compare with common MR damper, since synchronously the cuboid magnet steel of slip external electromagnet magnetorheological damper through magnetizing or demagnetize after reached near predetermined work magnetic intensity or the predetermined work magnetic intensity, it is energy-conservation so the control power supply exports to it that damping force regulates that required electric energy will reduce greatly by field coil on the cuboid magnet steel of external slip electromagnet, simultaneously, because of utilizing the control power supply that the cuboid magnet steel of external slip electromagnet is magnetized at any time or demagnetizing operation, make the cuboid magnet steel of external slip electromagnet have certain magnetic intensity, even control power supply or cuboid magnet steel field coil breaks down like this, the damping force that also can guarantee to go on foot the output of slip external electromagnet magnetorheological damper can be kept the proper functioning of system.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the generalized section of Fig. 1.
Fig. 3 is the schematic representation that the clutch release slave cylinder the other end is arrived in piston motion among Fig. 1.
Embodiment
Describe structure of the present utility model in detail below in conjunction with accompanying drawing:
Referring to Fig. 1 and Fig. 2, this is a kind of concrete structure of the present utility model, the two ends of the cylinder bodily form piston 3 that is made of permeability magnetic material are fixed with piston rod 26 and piston rod 14, piston rod 26 and piston rod 14 seal arrangement 15 and seal arrangement 12 and bearing 16 and the bearing 13 by two end faces of the clutch release slave cylinder 1 that is made of non-magnet_conductible material stretches out in clutch release slave cylinder 1, be full of magnetic flow liquid 2 in clutch release slave cylinder 1, the external diameter of piston 3 is less than the internal diameter of clutch release slave cylinder 1 and leave magnetic flow liquid 2 flow gap 10; The shell 7 of external slip electromagnet 20 is a cylindrical shape, uniform cuboid magnet steel 6 and the cuboid magnet steel 19 of being fixed with on the inner circumference of external slip electromagnet 20 cylindrical housings 7, the other end at cuboid magnet steel 6 and cuboid magnet steel 19 all is fixed with the pole shoe 8 that is made of permeability magnetic material, is wound with field coil 4 and field coil 17 and fills degaussion coil 5 and fill degaussion coil 18 on cuboid magnet steel 6 and cuboid magnet steel 19; External slip electromagnet 20 is installed on the excircle of clutch release slave cylinder 1, and the radius of clutch release slave cylinder 1 excircle is less than the radius of curvature of pole shoe 8 and leave glade plane space 9; The axial length of external slip electromagnet 20 equates with the axial length of piston 3, the equal in length of the length of cylindrical bearing frame 11 and piston rod 14; One end of cylindrical bearing frame 11 and external slip electromagnet 20 are fixing, and the end of the other end of cylindrical bearing frame 11 and piston rod 14 is fixed; When piston rod 26 drive pistons 3 move in clutch release slave cylinder 1, piston rod 14 also drives external slip electromagnet 20 by bearing support 11 and slides synchronously clutch release slave cylinder 1 outside, makes the piston 3 in the clutch release slave cylinder 1 remain relative static conditions in the axial direction with external slip electromagnet 20 outside the clutch release slave cylinder 1.Control power supply 25 is by lead-in wire 22 and 23 pairs of field coils 4 of lead-in wire and field coil 17 output field currents, control power supply 25 by go between 21 and 24 pairs in lead-in wire fill degaussion coil 5 and fill degaussion coil 18 outputs and magnetize and demagnetization current; Enter the field coil 4 on the cuboid magnet steel 6 and cuboid magnet steel 19 and the field current size in the field coil 17 on the external slip electromagnet 20 by adjusting control power supply 25, or control power supply 25 is by filling degaussion coil 5 and fill degaussion coil 18 and fill the demagnetization operation and make cuboid magnet steel 6 and cuboid magnet steel 19 reach certain magnetic intensity cuboid magnet steel 6 and cuboid magnet steel 19 on the external slip electromagnet 20, the magnetic intensity in the gap 10 obtains changing between the internal diameter of the external diameter of piston 3 and clutch release slave cylinder 1 thereby make, make the viscosity-modifying of the magnetic flow liquid 2 in this gap 10, make the output damping force of synchronous slip external electromagnet magnetorheological damper obtain adjusting.
Claims (1)
1. synchronous slip external electromagnet magnetorheological damper, it comprises clutch release slave cylinder, piston, two piston rods, external slip electromagnet, bearing support; It is characterized in that:
The shell of described external slip electromagnet is a cylindrical shape, and uniform fixing at least two blocks of cuboid magnet steel on the inner circumference of cylindrical housing are fixed with pole shoe at the other end of cuboid magnet steel, be wound with field coil and fill degaussion coil on the cuboid magnet steel;
Described external slip electromagnet is installed on the excircle of clutch release slave cylinder, and the radius of clutch release slave cylinder excircle is less than the radius of curvature of pole shoe and leave glade plane space;
Described piston is the cylinder bodily form, and the external diameter of piston is less than the internal diameter of clutch release slave cylinder and leave the magnetic flow liquid gap of flowing, and has been full of magnetic flow liquid in clutch release slave cylinder;
The axial length of described external slip electromagnet equates with the axial length of piston, bearing support length and piston rod equal in length;
Described two piston rods are separately fixed at the two ends of piston, and the other end of two piston rods stretches out in clutch release slave cylinder by the seal arrangement and the bearing of two end faces of clutch release slave cylinder respectively;
One end of described bearing support and external slip electromagnet are fixed, and the end of the other end of bearing support and a piston rod is fixed;
The shell and the pole shoe of described piston, external slip electromagnet are made of permeability magnetic material, and clutch release slave cylinder is made of non-magnet_conductible material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201141085U CN201953899U (en) | 2011-04-19 | 2011-04-19 | Magnetorheological damper with external electromagnet capable of sliding synchronously |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201141085U CN201953899U (en) | 2011-04-19 | 2011-04-19 | Magnetorheological damper with external electromagnet capable of sliding synchronously |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201953899U true CN201953899U (en) | 2011-08-31 |
Family
ID=44498009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201141085U Expired - Fee Related CN201953899U (en) | 2011-04-19 | 2011-04-19 | Magnetorheological damper with external electromagnet capable of sliding synchronously |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201953899U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387111A (en) * | 2015-12-11 | 2016-03-09 | 北京青云航空仪表有限公司 | Electromagnetic damper |
-
2011
- 2011-04-19 CN CN2011201141085U patent/CN201953899U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105387111A (en) * | 2015-12-11 | 2016-03-09 | 北京青云航空仪表有限公司 | Electromagnetic damper |
| CN105387111B (en) * | 2015-12-11 | 2017-06-23 | 北京青云航空仪表有限公司 | A kind of electromagnetic damper |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104702078B (en) | Permanent magnet linear vibration motor and electrical equipment | |
| CN102182785A (en) | Magnetic steel piston type magneto-rheological damper with double ejection rods | |
| CN106641403B (en) | A kind of direct action type electrohydraulic proportional valve of the linear force motor driving of bidirectional permanent magnetic | |
| CN105003589A (en) | Magnetorheological damper with built-in magnetorheological valve for damping performance control | |
| CN202007856U (en) | Double-rod magnetic steel piston type magneto-rheological damper | |
| CN102155515A (en) | Magnetorheological damper with external electromagnet | |
| CN103683790A (en) | Permanent magnet straight reciprocating motion device | |
| CN202007857U (en) | Magnetorheological damper with external electromagnet | |
| CN102242791A (en) | Magneto-rheological damper of synchronous sliding external electromagnet | |
| CN203708063U (en) | Permanent-magnetism linear oscillation motor and electrical device | |
| CN201953899U (en) | Magnetorheological damper with external electromagnet capable of sliding synchronously | |
| CN101832355A (en) | Double-out-rod adaptive double-control magneto-rheological damper | |
| CN202720986U (en) | Electromagnet with large stroke ratio | |
| CN102135154A (en) | Alnico piston-type magneto-rheological damper with single piston rod | |
| JP2009533014A (en) | Electric linear motor | |
| CN101832356B (en) | Self-adaptive double control magneto-rheological damper | |
| CN201953898U (en) | Single-rod magnetic steel piston type magnetorheological damper | |
| CN112780792A (en) | Self-holding electric control permanent magnet valve | |
| CN202628908U (en) | Double-outlet rod magneto-rheological elastomer rectangular damper | |
| CN102287479A (en) | Double-rod magnetorheological grease damper | |
| CN202203323U (en) | Double-rod plate type magnetorheological damper | |
| CN103615486A (en) | Double-rod hanging-type damper | |
| CN102537168A (en) | Double-rod magnetorheological elastomer damper | |
| CN102691739B (en) | Rectangular vibration absorber of two-out-bar magneto-rheological elastic body | |
| CN204740479U (en) | Accurate controllable sharp drive arrangement and combination thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHONGQING METER MATERIALS INST Free format text: FORMER OWNER: TAN HEPING Effective date: 20120620 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120620 Address after: 400700 Chongqing City Longfeng town of Beibei Longfeng District Three Village Patentee after: Chongqing Meter Materials Inst Address before: 400700 Chongqing city Beibei District Three Longfeng Village No. 36-18-2 Patentee before: Tan Heping |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110831 Termination date: 20170419 |