CN204175827U - Magnetoresistive type Miniature clutch - Google Patents
Magnetoresistive type Miniature clutch Download PDFInfo
- Publication number
- CN204175827U CN204175827U CN201420499836.6U CN201420499836U CN204175827U CN 204175827 U CN204175827 U CN 204175827U CN 201420499836 U CN201420499836 U CN 201420499836U CN 204175827 U CN204175827 U CN 204175827U
- Authority
- CN
- China
- Prior art keywords
- rotor
- clutch
- power rotor
- magnetic
- magnet case
- 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
Landscapes
- Dynamo-Electric Clutches, Dynamo-Electric Brakes (AREA)
Abstract
Magnetoresistive type Miniature clutch, comprise power rotor, driven rotor and stator, the axle of driven rotor is contained in stator center, power rotor is contained in outside stator, it is characterized in that embedded magnet case in driven rotor and outside it and between the magnet case of power rotor outer ring, have the first work reluctance air gaps, have the second work reluctance air gaps between the radiation dentation magnetic pole simultaneously in the embedded magnet case of driven rotor and power rotor inner ring inside it; One end on described power rotor shell is set with gear.The utility model, from electromagnetic principle and micro motor design ingeniously, adopts the longitudinal tooth of two air gap, comb teeth-shaped, the design of cast aluminium special construction and fully strengthens conductance four technical measures.The load index of magnetic resistance clutch and time constant are reached the level with the magnetic powder clutch used, and apply clutch boundary dimension size and the duplicate magnetic resistance clutch of mounting type, to improve reliability and the life-span of aircraft flying control equipment with equipping.
Description
Technical field
The utility model belongs to the automatic flight control technology of aircraft, is a kind of Novel electromagnetic clutch-magnetic resistance clutch, in the actuator for the flight control system of aircraft.
Background technique
At present, in the flight control system of Russia and some aircraft of China, the clutch of use is magnetic powder clutch.Due in work, there is magnetic friction, heating, magnetic property is changed (permeability declines, and coercivity rises), and magnetic condenses, caking, be what is more magnetic powder particle to rubber seal wear-out failure, make particle scurry into bearing, stuck fault occur.Thus, magnetic powder clutch job insecurity, fault many life-spans are short, reject submit in producing at present by screening.Given this condition, I utilizes micro motor principle, model utility magnetoresistive type clutch (number of patent application: 201210078990.1), the magnetic resistance clutch of this patent, nonmagnetic powder, contactless, without friction, thus long working life stable and reliable for performance.Also have single gap structure magnetic resistance clutch of design, magnetic flux is little, and power action radius is also little, and cause clutch engagement force energy coefficient on the low side, volume is bigger than normal and moment is less, and time constant is longer.
For the flight control system of the small-sized magnetic powder clutch that the many aircrafts of China are using, if produce the magnetic resistance clutch of same volume same performance index, be significant.But according to existing mentality of designing, cannot reach.Thus, by finding out the way improving load carrying capacity and reduce time constant to the research of electromagnetism and electric machine theory, onesize and that index is close magnetic resistance clutch can just must be designed.
Summary of the invention
The utility model object is that a kind of volume of design is little, the magnetoresistive type Miniature clutch that power can be high, to replace current magnetic powder clutch, improves operating life and the reliability of flight control system.
Specifically, magnetoresistive type Miniature clutch, comprise power rotor, driven rotor and stator, the axle of driven rotor is contained in stator center, power rotor is contained in outside stator, embedded magnet case in driven rotor and outside it and between the magnet case of power rotor outer ring, have the first work reluctance air gaps, have the second work reluctance air gaps between the radiation dentation magnetic pole simultaneously in the embedded magnet case of driven rotor and power rotor inner ring inside it; One end on described power rotor shell is set with gear.
Described power rotor comprises inside and outside two circle magnetic poles, the very longitudinal comb teeth-shaped of outer ring dentation, and inner ring dentation magnetic pole is radial radiation shape, is connected as a single entity by two circles by cast aluminium alloy, and two circle magnetic poles are alignment; Described driven rotor is a canopy shape structure, main body is given up by aluminum alloy and is cast, canopy shape structure is divided into rim section, rotating shaft part and the disk portions that both are connected together, rim section is inserted in annular groove, wheel rim is embedded be filled with the magnet case corresponding with power rotor dentiform magnetic pole and with power rotor inside and outside two enclose and all keep little air gap, form double-acting air gap.
The linkage structure of the conduction swirling body of each tooth in magnetoresistive type clutch and the conduction swirling body of total magnetic flux and inside and outside circle is formed by aluminum alloy one-step casting.
The utility model adopts two air-gap reluctance, two air gap will be twice than magnetic flux--change in displacement rate d Φ/d θ and magnetic flux--the time rate of change d Φ/dt of its gap single, thus can significantly improve load carrying capacity and reduce time constant, in the face of multiple tooth pole, two air gap mechanism is difficult to realize, finally have found two opposed polarity (N through Scheme design repeatedly, S pole) multiple tooth type magnetic pole connects into the structure of a rotor with two turning circles, this is just formed has outer ring magnetic pole " S " and the power rotor of inner ring magnetic pole " N ", driven rotor is inserted in groove between two revolution annulus, magnet case on it and power rotor magnetic pole form two air gap, during energising when there being disengaging to aim at tendency under the load effect outside of the magnet case of driven rotor, to be held by upper and lower two magnetic poles, when not moving conflicting mode completely to, as magnet case in insertion groove and power rotor relative movement, carry out damping by under the damping function formed around the aluminum alloy of tooth, also damping is carried out to main flux simultaneously.Thus, load carrying capacity is improved, also make constant minimizing lock in time.For improving load moment further, the magnetic pole of usual radial radiation shape is evolved into the comb teeth-shaped stretched vertically by the utility model, and cast by aluminum alloy and solve and become ring of eddy problem around longitudinal comb, power action radius is brought up to maximum by longitudinal comb teeth-shaped magnetic pole, and moment of rotation is improved.The power of motor can become biquadratic to increase with effect air gap radius, thus significantly improves power energy coefficient.
In the utility model, according to electrodynamic principle, by the design of material and shape, at utmost improve the orthogonal linkage amount of electricity and magnetic, except small active air gap, space is all formed omnidirectional distribution by magnetic-dielectrics, and the ratio that will effectively link improves, just be achieved in the same size space of magnetic powder clutch, design magnetic resistance clutch.In order to improve efficient orthogonal link amount, mass part of the present utility model all defines the parts of a multipotency, and such as, two coil structures attachment portions, the eddy current damping ring of gear of simultaneously holding concurrently also is the damping ring of magnetic flux.Winding skeleton is double does total magnetic flux damping ring.In magnetic medium and dielectric effect contradiction, take optimal design, the contradiction between main working gas gap and feeding air gap, makes it by the distribution of air gap area
maximize.
Accompanying drawing explanation
Fig. 1 is the utility model assembly structure schematic diagram, and figure number illustrates: 1 stator magnetizer leading portion, 2 gears, 3 shell magnet cases, 4 windings, 5 cast aluminum construction, 6 embedded magnet cases, 7 driven rotor magnet cases, 8 driven rotor cast aluminium main bodys, 9 stator magnetizer back segments; 10-driven rotor axle.
Fig. 2 is power rotor structural representation in the utility model;
Fig. 3 is generalized section on the right side of Fig. 2;
Fig. 4 is driven rotor schematic diagram;
Fig. 5 is the stator structure schematic diagram with winding in the utility model.
Embodiment
Fig. 1 is shown in this novel magnetic resistance clutch assembly.Its profile and size and the magnetic applied at present just the same from device.(external diameter
length 65) equally at front end suit input gear, its modulus is too.Mounting interface size is just the same, uses
circle and end face location thereof, with three M4 screw fastenings, be extended with two wiring terminals (not indicating in figure) and connect for winding energising.
Magnetic resistance clutch belongs to a kind of special micro motor in essence, due to clutch magnetic force unrealized contactless, without friction clutch, therefore working stability, reliable, the life-span is long.Magnetic resistance clutch of the present utility model mainly comprises by three parts:
1) rotor of input rotation, appellation " power rotor ".Flying to control the gear that rotates through of motor inputs into clutch, forms the rotation of power rotor, and power rotor is with in one week uniform multiple dentiform magnetic pole 6-1, and the outer ring of a week is S pole, and inner ring is N pole.
2) rotor rotated is exported, appellation " driven rotor ".When clutch is not energized, even if power rotor is in rotation, it is "Off" state that driven rotor does not rotate this with it.When clutch is energized, the dentiform magnetic pole on power rotor, the magnet case (bar shaped) holding setting-in in driven rotor is formed power rotor in tow driven rotor rotate together, this is " conjunction " state.
3) with the stator of winding, it separated just as shown in Figure 5 from assembly figure, there are two place's bearing (5-2) and (5-3) at its cylindrical position, rotates for support power rotor.Pair of bearings (5-1) and (5-4) in its endoporus, rotate for supporting driven rotor.It is made up of permeability magnetic material, and when the windings are energized, the lines path along Fig. 5 band arrow is produced magnetic flux Φ by the magnetic field produced.The left side of stator be this clutch mounting interface locating face (
circle and plane thereof).Winding conducting wire passes through
two insulator wiring terminals that plane is installed draw (not shown).
Driven rotor shown in Fig. 4 is like a umbrella shape, and the outer ring of umbrella is an annulus, keeps inside and outside air gap in the circular groove of this annulus insertion power rotor with power rotor.Driven rotor agent structure is cast by aluminum alloy, its annulus embeds the bar shaped magnet case corresponding with power rotor dentiform magnetic pole, and the outer ring of power rotor is one week uniform dentiform magnetic pole, is designed to longitudinal comb teeth-shaped, save taking of radial space, thus make air gap radius be maximum.
Adopt the particular design of cast aluminium alloy structure, make the aluminum alloy that conduction is good, around each tooth, form the ring of eddy of each tooth, and also around total magnetic flux.Meanwhile, aluminum alloy is again linkage structure, while encirclement power rotor outer ring comb teeth-shaped magnetic pole, inner ring and outer ring is linked into an integrated entity again, and also formed to each tooth of Internal and external cycle around, also play the magnetic field buffer action to opposed polarity.In clutch space, the space taken except magnet case and each free gap occupy except very little space, and its complementary space is all cast in into aluminum alloy conductive structure, thus make eddy current conductance maximum, make full use of data-collection space, improve eddy current damping effect.
The utility model improves load carrying capacity by above-mentioned measure and reduces time constant, thus miniaturization is achieved, enable magnetic resistance clutch designs to become to have same boundary dimension and mounting type with magnetic powder clutch, so that the magnetoresistive type high by reliability, the life-span is long replaces magnetic-powder-type.After above improvement, its power energy coefficient and time constant are suitable with magnetic powder clutch, thus can the shape size of magnetic resistance clutch and interface be dimensioned to magnetic powder clutch just the same, so that when flight control system general arrangement is constant, adopt magnetic resistance clutch, to improve life and reliability.
Be more than the brief introduction of this novel clutch mechanism and effect, relevant issues will be set forth further below.
Along on the flux circuit of Fig. 1 instruction, all structure divisions all manufacture with the material (such as electromagnetic pure iron, or 1J series alloy) that magnetic conduction is good.But in stator and rotor boundary, do not come in contact, but have gap little and the enough large air gap of area, make the magnetic resistance of magnetic flux Φ little.
In order to realize the work magnetic resistance of two air gap, the right-hand member of power rotor has one week annular groove, on the cylndrical surface, both sides of groove, all there is the dentiform magnetic pole of one week uniform multiple tooth, field structure on cylndrical surface, both sides, be connected as a single entity by cast aluminium alloy structure, and present the mutual alignment of inside and outside both sides tooth.Driven rotor shown in Fig. 5 is like a umbrella shape, and the outer ring of umbrella is an annulus, keeps inside and outside air gap, this reluctance air gaps that works just in the circular groove of this annulus insertion power rotor with power rotor.Driven rotor agent structure is cast by aluminum alloy, its annulus embeds the bar shaped magnet case corresponding with power rotor dentiform magnetic pole, during energising, magnetic conduction bar driven rotor is drawn onto alignment by the upper lower tooth of power rotor, and there is certain confining force (load forces that can provide), in likeness in form, lower tooth bites the magnetic conduction bar of driven rotor, but does not come in contact, and is only that magnetic force is plaing a part to bite.Two gap structure like this makes d Φ/d θ and d Φ/dt all can increase in principle to be twice compared with single air gap, the increase of d Φ/d θ, then power of biting increases, the increase of d Φ/dt, then actuation time, constant reduced.But consider the change of the Magnetic leakage flux of distribution, boost value is more slightly smaller than one times.
The utility model, in order to improve load moment capacity, as far as possible by air gap enlarging radius, in conjunction with magnetic circuit principle and magnetic Circuit Design, by the cylindrical dentiform magnetic pole of power rotor, is designed to longitudinal comb teeth shape, sees Fig. 3, thus make air gap radius reach maximum value.And the inner circle profile of tooth pole design of power rotor becomes outwards radial.By casting Technology Design cleverly, achieving and namely form by the good cast aluminium alloy of conduction the little ring of eddy surrounding each tooth, is also the maelstrom ring around total magnetic flux, double as simultaneously inside and outside circle linkage structure and every magnetic measure.Even the skeleton of winding on stator, be also made up of aluminum alloy, double as total magnetic flux ring of eddy, its insulation adopts thick-layer anodization to add leaching insulated paint way.By above-mentioned design, the clutch confined space is made full use of most, make eddy current conductor conductance reach maximum value, make the time constant of magnetic resistance clutch minimum, can close to the damping capacity of magnetic.
Above-mentioned example, just one of practical design scheme of the present utility model, is not used for limiting aspects of the present utility model.All other schemes designed in conjunction with embody rule with the utility model three design of major parts principles and designing points, all belong to the utility model scope and are all included within the utility model right.
Claims (3)
1. magnetoresistive type Miniature clutch, comprise power rotor, driven rotor and stator, the axle (10) of driven rotor is contained in stator center, power rotor is contained in outside stator, it is characterized in that embedded magnet case (7) in driven rotor and be positioned at outside it and have the first work reluctance air gaps between the magnet case (3) being positioned at power rotor outer ring have the second work reluctance air gaps between the embedded magnet case (7) of driven rotor and the radiation dentation magnetic pole (6) being arranged in the power rotor inner ring inside it simultaneously; One end on described power rotor shell is set with gear (2).
2. the magnetoresistive type Miniature clutch according to claims 1, it is characterized in that described power rotor comprises inside and outside two circle magnetic poles, the very longitudinal comb teeth-shaped of outer ring dentation, inner ring dentation magnetic pole is radial radiation shape, be connected as a single entity by two circles by cast aluminium alloy, two circle magnetic poles are alignment; Described driven rotor is a canopy shape structure, main body is given up by aluminum alloy and is cast, canopy shape structure is divided into rim section, rotating shaft part and the disk portions that both are connected together, rim section is inserted in annular groove, wheel rim is embedded be filled with the magnet case corresponding with power rotor dentiform magnetic pole and with power rotor inside and outside two enclose and all keep little air gap, form double-acting air gap.
3. the magnetoresistive type Miniature clutch according to claims 1, is characterized in that the linkage structure of the conduction swirling body of each tooth in magnetoresistive type clutch and the conduction swirling body of total magnetic flux and inside and outside circle is formed by aluminum alloy one-step casting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499836.6U CN204175827U (en) | 2014-09-01 | 2014-09-01 | Magnetoresistive type Miniature clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420499836.6U CN204175827U (en) | 2014-09-01 | 2014-09-01 | Magnetoresistive type Miniature clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204175827U true CN204175827U (en) | 2015-02-25 |
Family
ID=52564638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420499836.6U Expired - Fee Related CN204175827U (en) | 2014-09-01 | 2014-09-01 | Magnetoresistive type Miniature clutch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204175827U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295631A (en) * | 2014-09-01 | 2015-01-21 | 宝鸡和立机械制造有限公司 | Reluctance type minitype clutch |
-
2014
- 2014-09-01 CN CN201420499836.6U patent/CN204175827U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104295631A (en) * | 2014-09-01 | 2015-01-21 | 宝鸡和立机械制造有限公司 | Reluctance type minitype clutch |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106351953B (en) | A kind of two-freedom Halbach array deflection Lorentz force magnetic bearing | |
| CN104895921B (en) | A kind of two-freedom Lorentz force outer rotor sphere magnetic bearing | |
| CN104214216B (en) | A kind of four-degree-of-freedom internal rotor magnetic bearing | |
| CN103807329B (en) | A kind of electric vortex buffering apparatus based on magnetic rheology effect | |
| CN104728263A (en) | Double-stator three-freedom-degree decoupling lorentz-force magnetic bearing | |
| CN105673688B (en) | A kind of self-regulated integer five degree of freedom magnetic bearing | |
| CN105141089A (en) | Magnetic fluid momentum sphere | |
| CN104728264A (en) | Lorentz-force axial magnetic bearing of outer rotor | |
| CN101994761B (en) | Double-permanent magnet outer-rotor permanent magnet biased radial magnetic bearing | |
| CN103925291B (en) | A kind of permanent magnet bias mixing axial magnetic bearing | |
| CN106286594A (en) | A kind of double Halbach array spherical Lorentz force magnetic bearing | |
| CN104389903A (en) | Double-permanent magnet outer rotor permanent magnet-biased spherical radial magnetic bearing | |
| CN203702930U (en) | Efficient eddy current retarder | |
| CN104184234A (en) | Hybrid excitation double-air-gap claw pole motor | |
| CN204175827U (en) | Magnetoresistive type Miniature clutch | |
| CN204103628U (en) | The two air gap claw-pole motor of a kind of composite excitation | |
| CN204553558U (en) | A kind of external rotor Lorentz force axial magnetic bearing | |
| CN204967571U (en) | Magnetic current body momentum ball | |
| CN104295631A (en) | Reluctance type minitype clutch | |
| CN104989727B (en) | Combined-type five-degree-of-freedom electromagnetic bearing | |
| CN103925293A (en) | Radial hybrid magnetic bearing of slice rotor | |
| CN204267528U (en) | A kind of dual permanent-magnet internal rotor permanent-magnetic biases ball face radial direction magnetic bearing | |
| CN105429426B (en) | A kind of magnetism-gathering magnetic mechanical couple | |
| CN201877913U (en) | Hollow cup motor rotor for aerospace machinery and electronic components | |
| CN204716759U (en) | A kind of two-freedom Lorentz force external rotor sphere magnetic bearing |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150225 Termination date: 20150901 |
|
| EXPY | Termination of patent right or utility model |