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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- permanent magnets
- rotating shaft
- permanent magnet
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- 238000013016 damping Methods 0.000 title claims abstract description 23
- 238000009434 installation Methods 0.000 claims abstract description 6
- 238000001514 detection method Methods 0.000 claims description 24
- 230000005415 magnetization Effects 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 claims description 2
- 230000007246 mechanism Effects 0.000 description 6
- 238000012545 processing Methods 0.000 description 4
- 230000000452 restraining effect Effects 0.000 description 4
- 238000005267 amalgamation Methods 0.000 description 3
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910000737 Duralumin Inorganic materials 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 229910001285 shape-memory alloy Inorganic materials 0.000 description 2
- 229920001967 Metal rubber Polymers 0.000 description 1
- 238000005481 NMR spectroscopy Methods 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 229910001566 austenite Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
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Abstract
本发明的目的设计一种线性磁力阻尼定位器，解决现有的阻尼器易于老化，结构复杂，不易安装，维护困难，不能自复位的问题。本系统的定子和转子上同时分布N＝2M块永久磁铁，M为大于等于2的整数；定子永久磁铁的两个侧面都为圆弧面，大圆弧面为安装面；转子永久磁铁的一个侧面为圆弧面，另一个侧面为平面，平面为安装面；N块定子转子永久磁铁拼合后，形成中空的圆柱柱；N块转子永久磁铁拼合后，形成中心为中空的N棱柱；N块定子永久磁铁的形状大小相同，N块转子永久磁铁的形状大小也相同。本发明适合用于运动设备，如设备的操纵杆，方向盘；也可锁定支柱，或作为位置保持装置。
The object of the present invention is to design a linear magnetic damping locator to solve the problems that the existing dampers are easy to age, complex in structure, difficult to install, difficult to maintain and unable to self-reset. N=2M permanent magnets are distributed on the stator and rotor of this system at the same time, and M is an integer greater than or equal to 2; both sides of the permanent magnet of the stator are arc surfaces, and the large arc surface is the mounting surface; one of the permanent magnets of the rotor One side is an arc surface, the other side is a plane, and the plane is the installation surface; N pieces of stator and rotor permanent magnets are combined to form a hollow cylindrical column; after N pieces of rotor permanent magnets are combined, a hollow N prism is formed in the center; N pieces The stator permanent magnets have the same shape and size, and the N rotor permanent magnets also have the same shape and size. The invention is suitable for sports equipment, such as joysticks and steering wheels of equipment; it can also be used for locking pillars, or as a position maintaining 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)
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 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105221407A Expired - Fee Related CN102022474B (en) | 2010-10-22 | 2010-10-22 | Linear magnetic damping locator |
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| Country | Link |
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| 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 Magnetically Controlled Damping Adjustment Structure of Fitness Bike |
| 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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| CN102022474A (en) | 2011-04-20 |
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Granted publication date: 20120516 Termination date: 20121022 |