CN102022474B - Linear magnetic damping locator - Google Patents
Linear magnetic damping locator Download PDFInfo
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- CN102022474B CN102022474B CN2010105221407A CN201010522140A CN102022474B CN 102022474 B CN102022474 B CN 102022474B CN 2010105221407 A CN2010105221407 A CN 2010105221407A CN 201010522140 A CN201010522140 A CN 201010522140A CN 102022474 B CN102022474 B CN 102022474B
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- rotor
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- permanent magnet
- rotating shaft
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Abstract
The invention provides a linear magnetic damping locator and an inclination angle detection system thereof, which are used for solving the problems that the existing damper is easy to age, complicated in structure and difficult to install and maintain and fails in self-reset. In the system, N (equal to 2M) permanent magnets are distributed on a stator and a rotor at the same time, wherein, M is an integral number not less than 2; two sides of each stator permanent magnet are circular arc surfaces, wherein, the large circular arc surface is taken as a mounting surface; one side face of each rotor permanent magnet is a circular arc surface, and the other side face is a plane taken as the mounting surface; N stator permanent magnets are spliced together to form a hollow cylinder; N rotor permanent magnets are spliced together to form a hollow N-prism; and the N stator permanent magnets are same in shape and size, and the N rotor permanent magnets are also same in shape and size. The linear magnetic damping locator and the inclination angle detection system provided by the invention are applicable to sports equipment such as a control lever of equipment and a steering wheel, and can be also used for locking a pillar or serving as a position holding device.
Description
Technical field
The invention belongs to the damper field.
Background technique
Existing control to object has two states, and a kind of is to brake completely, and it is in by the state of locking; Another kind is a free state, promptly to its additional forces that has no.But in the actual application, what need not merely is this two states, and for example, it is light, flexible that we hope that automobile turns at low-speed region; Turn to the feel that turns to that big slightly damping torque produces in the high speed district, and enough good stability is arranged, make the driver that good road feel arranged, guarantee safety.And in many equipment, need the technician when it is controlled, certain " feel " arranged.Such as when moving the spanner of equipment, certain resisting moment will being arranged, in order to avoid operator are when moving, especially in the very high control of precision prescribed, owing to misoperation make move excessive.
Simultaneously, along with the continuous change of environment in the production reality, and the renewal of equipment in the industry, make to require increasingly high to attached braking device.Existing positioning and braking device, great majority all are consumption of raw material, like disk type braker, and drum brake, or consumed power, like electromagnetic brake, perhaps application machine principle compressing and discharging and realize through spring to the braking of the location of object.Such as in hoist, in its horizontal cross or longitudinal moving mechanism and the vertical-lift mechanism, be very high to the security requirement of arrestment mechanism, be not only required in location in the short time, can remain unchanged to load situation after also hoping to stop.
Patent US6095295 has described and has a kind ofly controlled the rotation damper of magnetic flow liquid with electric current, can change the degree of magnetic flow liquid through the size of adjustment electric current that winding adds, and changes the damping of countershaft.
Patent ZL200420112224.3 has described a kind of self adaption squeeze film damper with the metal-rubber outer shroud, has effectively solved diameter of axle eccentricity and has increased, and when oil-film force increased, oil film rigidity was the problem of height non-linear growth with the increase of diameter of axle eccentricity.
Patent 200910011447.8 has been described a kind of mixed type shape memory alloy multi-dimensional vibration isolator; Fully utilize the superelasticity runback potential energy power of austenite shape memory alloy and the high damping characteristic of martensite marmem, can be applied to the Passive Control of field of civil engineering.
Squeeze film damper wherein: mechanism is simple, and is in light weight; But the oil-film damping theory is not perfect; Need to make accurate valve and guarantee good sealing, squeeze film damper can be because oil-poor or oil-break and can't form squeeze film causes damping to be lost efficacy simultaneously; Squeeze film damper needs oil supply system in addition, causes system architecture complicated.ER fluid and magnetic rheological liquid damper: the effect that control is shaken at close-to-critical range and critical speed of rotation place is fine; But the mechanism relative complex, instability, cost is high.Marmem: can simplify control mechanism; But poor stability.
Meanwhile, permanent-magnet material is a kind of emerging energy and material, and its three big properties: high remanent magnetism, high-coercive force and maximum magnetic energy product make it in electrical category, medical nuclear magnetic resonance, and Aero-Space or the like aspect has obtained using widely.
Summary of the invention
The object of the invention designs a kind of linear magnetomechanical damping positioning work piece, and purpose is to solve existing damper to be easy to wear out, and complex structure is difficult for installing, and is difficult in maintenance, the problem that can not reset certainly.The present invention is suitable for sports equipment, like the operating handle of equipment, steering wheel; Also lockable pillar, or as position holding device.It is high to have the magnetic field space utilization ratio, and volume is little, and is in light weight, characteristics easy for installation.Linear performance between its damping torque and the angle is an emphasis of the present invention.
Linear magnetomechanical damping positioning work piece comprises stator, rotor, front cover, rear end cover; Stator comprises casing, stator permanent magnet; Stator permanent magnet is affixed on the internal surface of casing; Rotor comprises rotating shaft, rotor magnet, bearing; Rotor magnet is affixed on the outer surface of rotating shaft, and bearing is positioned at the both sides of rotating shaft; Rotor is positioned at stator interior, is fixed on the casing through the front and rear cover that is enclosed within the rotating shaft both sides, is used for fixing support;
It is characterized in that: also comprise inclination detecting device, the N=2M piece permanent magnet that distributes simultaneously on stator and the rotor, M is the integer more than or equal to 2; Two sides of stator permanent magnet all are arc surface, and the great circle cambered surface is an attachment face; A side of rotor permanent magnet is an arc surface, and another side is the plane, and the plane is an attachment face; After the amalgamation of N piece stator rotor permanent magnet, form the cylinder of hollow; After the amalgamation of N piece rotor permanent magnet, the formation center is that the N of hollow is prismatic; The shape size of N piece stator permanent magnet is identical, and the shape size of N piece rotor permanent magnet is also identical;
Stator permanent magnet and rotor permanent magnet adopt along radial direction magnetize or along the parallel magnetization of cross-section center and cambered surface circle center line connecting, magnitude of field intensity is equal; During installation on the stator magnetizing direction of two blocks of adjacent permanent magnets differ 90 the degree, on the rotor magnetizing direction of two permanent magnets adjacent differ 90 the degree; Stator vis-a-vis is identical with epitrochanterian two permanent magnet magnetizing directions;
Inclination detecting device is the angular detection circuit or adopts sensor, and the angular detection circuit is fixed in the rotating shaft, rotates synchronously with rotating shaft, comes the detection of detection angles.
Inclination angle detection can be the angular detection circuit, also can adopt other sensors, comprises the conductive plastic sensor, linear potentiometer, variable inductance or variable capacitance transducer, optical encoder.According to embodiment one, it is characterized in that the angular detection circuit is fixed in the rotating shaft, it is rotated with rotating shaft.In embodiment two, it is characterized in that adopting the conductive plastic sensor, a side of rotating shaft is gone out axle head be processed as a groove, receive the rotating shaft end of conductive plastic sensor, practiced thrift installing space.In embodiment three, it is characterized in that having adopted coupling to connect the conductive plastic sensor, can save the difficulty of processing of rotating shaft.
Another aspect according to invention provides a kind of spacing member and the connector element fixture block that can be used for being connected other equipment that limits the rotatable angle of rotating shaft.The locating stud that it is characterized in that spacing member, for Cock screw and the casing that is fixed on the front cover static relatively; Fixture block is that an outer shape is the slug of pyriform, and a side has an arc restraining groove, and restraining groove is that the degree of depth is the arc groove of 20-50mm, is used with locating stud, reaches spacing purpose.
Advantage of the present invention is simple in structure, has realized the linear relationship between damping torque and the deflection angle, and angular detection is convenient to be realized, it is little, in light weight that whole system has a volume, the characteristics that processing cost is low.
Description of drawings:
Linear magnetomechanical damping positioning work piece of Fig. 1 and inclination angle detection system implementation plan one thereof
Fig. 2 stator side view
Fig. 3 A rotor plan view
Fig. 3 B rotor magnet splicing sectional drawing
Fig. 3 C rotating shaft keyway profile figure
Fig. 4 fixture block side view
Fig. 5 front cover plan view
Linear magnetomechanical damping positioning work piece of Fig. 6 and inclination angle detection system implementation plan two thereof
Among linear magnetomechanical damping positioning work piece of Fig. 7 and inclination angle detection system implementation plan three figure thereof:
1. stator 101. casings 102. stator permanent magnets
2. rotor 201. rotating shafts 202. rotor permanent magnet 203. bearings 204. screens grooves 205. keyways
3. front cover
4. rear end cover
5. fixture block 501. restraining grooves
6. angular detection circuit
7. dust-proof cover
8. key
9. locating stud
10. conductive plastic sensor
11. coupling
12. air gap
Embodiment
Come the present invention is further specified below in conjunction with a kind of specific embodiments of the present invention.
A kind of linear magnetomechanical damping positioning work piece and inclination angle detection system implementation scheme one thereof are as shown in Figure 1, comprise linear magnetomechanical damping positioning work piece, inclination angle detection, connector element and spacing member.This linearity magnetomechanical damping positioning work piece comprises stator 1, rotor 2, front cover 3, rear end cover 4.Stator 1 comprises the casing 101 of the tubulose of a magnetic conduction, and its phase countershaft 201 is fixed.Stator permanent magnet 102 is affixed on the internal surface of casing, can form a cylindrical cavity after four stator permanent magnet 102 amalgamations.The permanent magnet magnetizing direction of rotor is along radial direction, perhaps along the direction of the cross-section center and the cambered surface line of centres, like Fig. 2, shown in Fig. 3 B.
In addition, the intersection line that is arranged in its four any two adjacent planes in plane of center line and rotating shaft of keyway 205 of rotating shaft 201 1 sides overlaps.Its a kind of position relation is like Fig. 3 B, shown in Fig. 3 C.
Be enclosed within rotating shaft 201 both sides respectively, be fixed in the front cover 3 of casing 101 both sides, rear end cover 4 is to guarantee size of gaps, and the key of coaxality.Two counterbores that front and rear cover respectively has respectively can be fixed in whole system on the platform.
Connector element is as shown in Figure 1, and key 8 tightly fits in the keyway 205 of rotating shaft 201, is used for and being connected of fixture block 5.Fixture block 5 is as shown in Figure 4, uses the duralumin material, and example is including, but not limited to duralumin, and its profile can link to each other with other equipment easily.Fixture block 5 drive fits are enclosed within the outside of rotating shaft 201 and key 8.
Spacing member locating stud 9 is fixed on the front cover 3, and the front cover plan view is as shown in Figure 5, the part that grows end cap through with fixture block 5 on restraining groove 501 be used, limit the angle rotatable of rotating shaft 201.
Angular detection is a testing circuit in this embodiment, angular detection circuit 6 is fixed on the end of rotating shaft 201, will guarantee during installation that the screw on the circuit board is corresponding one by one with the hole in the rotating shaft.Circuit board needs the outside that power supply is provided, and can go between and can directly link to each other with externally fed and signal processing circuit, reaches the purpose of real-time monitoring.
Dust-proof cover 7 is used for the protection circuit plate and makes moist, and is fixed in the outside of angular detection circuit.
A kind of linear magnetomechanical damping positioning work piece and inclination angle detection system implementation scheme two thereof are as shown in Figure 6, adopt conductive plastic sensor 10 directly to link to each other as angular detection with rotating shaft 201, can practice thrift installing space, reduce the part number.The function of conductive plastic potentiometer is to convert a mechanical displacement to electric signal, and this signal can be directly proportional with mechanical motion.
A kind of linear magnetomechanical damping positioning work piece and inclination angle detection system implementation scheme three thereof are as shown in Figure 7, directly use coupling 11 to be connected with conductive plastic sensor 10, have simplified the difficulty of processing of axle.
The commercial electromagnetism software Maxwell 2D that the present invention provides through Ansoft company, and the electromagnetism analytic method calculates check, result prove, this special permanent magnet shape with and distributed architecture can export the damping torque linear with angular deflection.
Claims (2)
1. linear magnetomechanical damping positioning work piece comprises stator, rotor, front cover, rear end cover; Stator comprises casing, stator permanent magnet; Stator permanent magnet is affixed on the internal surface of casing; Rotor comprises rotating shaft, rotor magnet, bearing; Rotor magnet is affixed on the outer surface of rotating shaft, and bearing is positioned at the both sides of rotating shaft; Rotor is positioned at stator interior, is fixed on the casing through the front and rear cover that is enclosed within the rotating shaft both sides, is used for fixing support;
It is characterized in that: the N=2M piece permanent magnet that distributes simultaneously on stator and the rotor, M is the integer more than or equal to 2; Two sides of stator permanent magnet all are arc surface, and the great circle cambered surface is an attachment face; A side of rotor permanent magnet is an arc surface, and another side is the plane, and the plane is an attachment face; After the amalgamation of N piece stator permanent magnet, form the cylinder of hollow; After the amalgamation of N piece rotor permanent magnet, the formation center is that the N of hollow is prismatic; The shape size of N piece stator permanent magnet is identical, and the shape size of N piece rotor permanent magnet is also identical;
Stator permanent magnet and rotor permanent magnet adopt along radial direction magnetize or along the parallel magnetization of cross-section center and cambered surface circle center line connecting, magnitude of field intensity is equal; During installation on the stator magnetizing direction of two blocks of adjacent permanent magnets differ 90 the degree, on the rotor magnetizing direction of two permanent magnets adjacent differ 90 the degree; Stator vis-a-vis is identical with epitrochanterian two permanent magnet magnetizing directions;
Also comprise the inclination angle detection system, the inclination angle detection system is the angular detection circuit or adopts sensor, and the angular detection circuit is fixed in the rotating shaft, rotates synchronously with rotating shaft, comes the detection of detection angles.
2. linear magnetomechanical damping positioning work piece according to claim 1 is characterized in that: sensor is the conductive plastic sensor, linear potentiometer, variable inductance or variable capacitance transducer or optical encoder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105221407A CN102022474B (en) | 2010-10-22 | 2010-10-22 | Linear magnetic damping locator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105221407A CN102022474B (en) | 2010-10-22 | 2010-10-22 | Linear magnetic damping locator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102022474A CN102022474A (en) | 2011-04-20 |
| CN102022474B true CN102022474B (en) | 2012-05-16 |
Family
ID=43864116
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105221407A Expired - Fee Related CN102022474B (en) | 2010-10-22 | 2010-10-22 | Linear magnetic damping locator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102022474B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204271879U (en) * | 2014-12-12 | 2015-04-15 | 廖新春 | Acute angle magnetic damper |
| CN105225838A (en) * | 2015-10-19 | 2016-01-06 | 郭道育 | Two-dimensional variable capacitor |
| CN111431331A (en) * | 2020-04-29 | 2020-07-17 | 聊城市孩室宝家俱有限公司 | Damping rotating shaft of micromotor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE3111204A1 (en) * | 1981-03-21 | 1982-09-30 | Ulrich Dr. rer. nat. Dipl.-Phys. 3300 Braunschweig Stumper | Circuit arrangement for an electric multi-gate network for identifying complex reflection factors |
| GB8413339D0 (en) * | 1984-05-24 | 1984-06-27 | Secr Defence | Six-port reflectometer |
| CN2267062Y (en) * | 1996-09-16 | 1997-11-12 | 尹衍标 | Improvement of magnetic control damping adjusting structure for exercising vehicle |
| CN201034789Y (en) * | 2007-02-06 | 2008-03-12 | 中国船舶重工集团公司第七一一研究所 | Wring vibrate test system detecting calibrating equipment |
| CN201843934U (en) * | 2010-10-22 | 2011-05-25 | 北京工业大学 | Linear magnetic damping positioner and inclination detecting system thereof |
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2010
- 2010-10-22 CN CN2010105221407A patent/CN102022474B/en not_active Expired - Fee Related
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| Publication number | Publication date |
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| CN102022474A (en) | 2011-04-20 |
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Granted publication date: 20120516 Termination date: 20121022 |