CN1384594A - Composite supersonic motor with great moment and longitudinal torque - Google Patents
Composite supersonic motor with great moment and longitudinal torque Download PDFInfo
- Publication number
- CN1384594A CN1384594A CN 02111724 CN02111724A CN1384594A CN 1384594 A CN1384594 A CN 1384594A CN 02111724 CN02111724 CN 02111724 CN 02111724 A CN02111724 A CN 02111724A CN 1384594 A CN1384594 A CN 1384594A
- Authority
- CN
- China
- Prior art keywords
- rotor
- piezoelectric ceramic
- stator
- mandrel
- becket
- 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.)
- Pending
Links
Images
Abstract
The composite supersonic motor includes stator comprising lower metal ring, twisting piezoelectric ceramic vibrator, middle metal body, longitudinal piezoelectric ceramic vibrator and upper metal ring; rotor and spindle, via which the stator and the rotor are connected and pressed. By applying AC signals of the same frequency, the same as resonant frequency of the stator, and different phase to the twisting vibrator and longitudinal vibrator, the stator is made to produce longitudinal and twisting vibration acted intermittently to the rotor with friction material adhered to the outer surface of the bottom. High frequency and rotation inertia of the rotor makes the rotor move in homogeneous and low speed and great moment.
Description
Technical field
The present invention relates to utilize the motor of piezoelectric effect, relate in particular to Hybrid Longitudinal-Torsional Ultrasonic Motor.
Background technology
At present, traditional electromagnetic induction machines is owing on the winding construction, be difficult to realize low-speed and large-torque.For all kinds of supersonic motors, realize that rotating speed and the big moment more than moment 1～10Nm that per minute 0～tens changes are also difficult.
Summary of the invention
The invention provides the composite supersonic motor with great moment and longitudinal torque that a kind of stator adopts the longitudinal-torsional compound oscillator, can realize the purpose of the slow-speed of revolution and big moment.
Following three kinds of technical schemes that the present invention adopts:
1) composite supersonic motor with great moment and longitudinal torque comprises by following becket, piezoelectric ceramic torsional oscillation, central metallic body, piezoelectric ceramic longitudinal vibration, goes up the stator that becket is formed, rotor, mandrel; On the shoulder of central metallic body from down and on intrinsic successively piezoelectric ceramic longitudinal vibration, go up becket, intrinsic successively from top to down piezoelectric ceramic torsional oscillation, following becket under the shoulder of central metallic body, central metallic body is fixed on the mandrel, mandrel bottom surface and following becket are fixed on the base plate, rotor bottom outer surface adhesive friction material, be installed on the mandrel above the stator with journal bearing, rotor is compressed with clamp nut by axial thrust bearing, butterfly spring, spindle nose is equipped with in the upper end of rotor, and stator and rotor are equipped with motor housing outward.
2) big moment is vertically turned round composite supersonic motor and is comprised by becket, piezoelectric ceramic torsional oscillation, central metallic body, annulus, piezoelectric ceramic longitudinal vibration down, goes up the stator that becket is formed, rotor, mandrel; Be fixed on above the metal ring on the central metallic body from down and on intrinsic successively piezoelectric ceramic longitudinal vibration, go up metal ring, intrinsic successively from top to down piezoelectric ceramic torsional oscillation, following metal ring below the metal ring, central metallic body is fixed on the mandrel, rotor bottom outer surface adhesive friction material, be installed on the mandrel above the stator with journal bearing, with clamp nut rotor compressed by axial thrust bearing, butterfly spring.
3) great moment and longitudinal torque gets the mould assembly supersonic motor and comprises by down becket, piezoelectric ceramic torsional oscillation, central metallic body, piezoelectric ceramic longitudinal vibration, goes up the stator that becket is formed, rotor, mandrel; On the shoulder of central metallic body from down and on intrinsic successively piezoelectric ceramic longitudinal vibration, last becket, intrinsic successively from top to down piezoelectric ceramic torsional oscillation under the shoulder of central metallic body, following becket, central metallic body is fixed on the mandrel, rotor bottom outer surface adhesive friction material, be installed on the mandrel above the stator with journal bearing, pass through axial thrust bearing, butterfly spring compresses rotor with clamp nut, the spindle nose that can be on motor rotates in the journal bearing of shell is equipped with in the upper end of rotor, stator and rotor are equipped with outward in the housing of being made up of shell on the motor and motor lower casing, on the motor, lower casing and intermetallic metal ring are integral with screw is affixed.
The present invention compares the beneficial effect that has with background technology:
1) compact conformation is simple, requires and can embed according to Drive Structure, can be integrated with system, or, on rotor, directly arrange gear etc. as external rotor;
2) energy density is 3～5 times of electromagnetic motor, is typical low-speed and large torque motor, can be used for direct driving, therefore can alleviate the weight of flying object, is used for aerospace field;
3) easily speed governing, the steady pulse free of low regime (general slowspeed machine is such as stepping motor), but in control, can realize stepper drive again, and the positioning accuracy height;
4) have the friction self-locking function after having a power failure, and in the high-frequency domain vibration, energy attenuation is exceedingly fast, high dynamic response characteristic (mechanical time constant is in 4ms) is arranged, easily realize high-accuracy speed and position servo control;
5) can directly drive,, can accurately locate because of the gap that the gearless deceleration device produces;
6) the sagging torque-speed characteristic similar to direct current machine;
7) owing to no iron core and coil, therefore anti-electromagnetic interference is strong, and promptly Electromagnetic Compatibility is good.
The present invention also has low cost of manufacture, simple in structure, easy to loading and unloading and stable performance.
Description of drawings
Fig. 1 is the electric machine structure schematic diagram that end face of the present invention is installed;
Fig. 2 is the electric machine structure schematic diagram of the present invention without shell;
Fig. 3 is the electric machine structure schematic diagram that the present invention adopts shell.
Embodiment
As shown in Figure 1, it comprises by following becket 1, piezoelectric ceramic torsional oscillation 2, central metallic body 3, piezoelectric ceramic longitudinal vibration 4, goes up the stator that becket 5 is formed, rotor 7, mandrel 14; On the shoulder of central metallic body 3 from down and on intrinsic successively piezoelectric ceramic longitudinal vibration 4, last becket 5, intrinsic successively from top to down piezoelectric ceramic torsional oscillation 2 under the shoulder of central metallic body 3, following becket 1, central metallic body 3 is fixed on the mandrel 14, mandrel 14 bottom surfaces and following becket 1 are fixed on the base plate 19, rotor 7 bottom outer surface adhesive friction materials 6, be installed on the mandrel 14 above the stator with journal bearing 13, by axial thrust bearing 8, butterfly spring 9 usefulness clamp nuts 12 compress rotor, spindle nose 11 is equipped with in the upper end of rotor 7, stator and the rotor 7 outer motor housings 10 that are equipped with.
The motor that Fig. 1 installs for end face, its mandrel 14 is connected with base plate 19 usefulness set bolts 17, and following metal ring 1 is fixing with base plate 19 usefulness alignment pins 18, in order to avoid make stator piezoelectric ceramic vibrator daughter board moving because of torsional oscillation is moving, base plate 19 shapes square or circular all can, arrange four installing holes 15 on it, lead-in wire is 16.
As shown in Figure 2, it comprises by following becket 1, piezoelectric ceramic torsional oscillation 2, central metallic body 20, annulus 21, piezoelectric ceramic longitudinal vibration 4, goes up the stator that becket 5 is formed, rotor 7, mandrel 14; Be fixed on above the metal ring 21 on the central metallic body 20 from down and on intrinsic successively piezoelectric ceramic longitudinal vibration 4, go up metal ring 5, intrinsic successively from top to down piezoelectric ceramic torsional oscillation 2, following metal ring 1 below the metal ring 21, central metallic body 3 is fixed on the mandrel 14, rotor 7 bottom outer surface adhesive friction materials 6, be installed on the mandrel 14 above the stator with journal bearing 13, rotor compressed by axial thrust bearing 8, butterfly spring 9 usefulness clamp nuts 12.
Fig. 2 is the motor without shell, is the external rotor supersonic motor, directly installs by intermetallic metal annulus 21 (being flange simultaneously).At this moment the installation site guarantees the axial neutral position in twisting vibration substantially, avoid the installation site to give the influence that vibration brings of motor longitrorse, consider that practical structures guarantees that fully there is certain difficulty this position, for reducing influence to the longitrorse vibration, use curve transition in the middle of adopting metal ring 21, reduce the longitrorse stiffness effect of the installation of metal ring to stator, shown in 21 structures of the metal ring among Fig. 2, another benefit of this structure is that its mandrel 14 can shorten.Square or the circular configuration of metal ring 21 usefulness is arranged installing hole 22 on it, and lead-in wire is 16.
As shown in Figure 3, it comprises by following becket 1, piezoelectric ceramic torsional oscillation 2, central metallic body 24, piezoelectric ceramic longitudinal vibration 4, goes up the stator that becket 5 is formed, rotor 7, mandrel 4; On the shoulder of central metallic body 24 from down and on intrinsic successively piezoelectric ceramic longitudinal vibration 4, last becket 5, intrinsic successively from top to down piezoelectric ceramic torsional oscillation 2 under the shoulder of central metallic body 18, following becket 1, central metallic body 18 is fixed on the mandrel 14, rotor 7 bottom outer surface adhesive friction materials 6, be installed on the mandrel 14 above the stator with journal bearing 13, by axial thrust bearing 8, butterfly spring 9 usefulness clamp nuts 12 compress rotor, the spindle nose 11 that can be on motor rotates in the journal bearing 21 of shell 20 is equipped with in the upper end of rotor 7, stator and rotor 7 outer being equipped with in the housing of forming by shell on the motor 20 and motor lower casing 23, on the motor, lower casing 20,23 with intermetallic metal ring 18 usefulness screws 25 affixed being integral.
Fig. 3 is for adopting the electric machine structure of shell, motor upper and lower covers 20,23 and central metallic body 24 usefulness screws 25 interconnect, the fixed electrical machinery rotor, simultaneously, be stamped journal bearing 27 on motor, such two journal bearings, 13,27 actings in conjunction can be born bigger radial load, because often radial load is also bigger during big moment, guarantee that like this rotor has more stable contact-making surface.Curve transition is adopted in central metallic body 24 junctions, reduces the longitrorse stiffness effect to stator, and installing hole is 28, and lead-in wire is 16.
The operation process of motor is as follows, by apply with out of phase ac signal frequently act on respectively vertical, torsional oscillation is sub, and the signal of telecommunication frequency that applies is the resonance frequency of stator integral body, make stator produce the longitrorse vibration, these two once per revolution vibrations produce elliptical trajectory at rotor contact-making surface particle, at rotor surface adhesive friction material, stator vibration acts on the rotor with abrasives intermittently, because the moment of inertia effect of high frequency (more than the vibration 20KHz) and rotor, and can make the rotor uniform rotation, and reach the characteristic of low-speed and large-torque.
More than more than the stalling torque 12Nm that realizes of three kinds of motors, no-load speed 12r/min, motor characteristic is similar to a sagging straight line, the step resolution that measures is 0.005 degree, the repetitive positioning accuracy of having realized is 0.025 degree, the motor transient response is very fast, and the starting time, the time of closing down was in 2 ms at 3～4 ms.Above-mentioned performance shows that the control performance of this motor is superior, and is very suitable as the control motor.
Claims (3)
1. composite supersonic motor with great moment and longitudinal torque, it is characterized in that: it comprises by following becket (1), piezoelectric ceramic torsional oscillation (2), central metallic body (3), piezoelectric ceramic longitudinal vibration (4), goes up the stator that becket (5) is formed, rotor (7), mandrel (14); On the shoulder of central metallic body (3) from down and on intrinsic successively piezoelectric ceramic longitudinal vibration (4), last becket (5), intrinsic successively from top to down piezoelectric ceramic torsional oscillation (2) under the shoulder of central metallic body (3), following becket (1), central metallic body (3) is fixed on the mandrel (14), mandrel (14) bottom surface and following becket (1) are fixed on the base plate (19), rotor (7) bottom outer surface adhesive friction material (6), be installed on the mandrel (14) above the stator with journal bearing (13), by axial thrust bearing (8), butterfly spring (9) compresses rotor with clamp nut (12), spindle nose (11) is equipped with in the upper end of rotor (7), the outer motor housing (10) that is equipped with of stator and rotor (7).
2. big moment is vertically turned round composite supersonic motor, it is characterized in that: it comprises by following becket (1), piezoelectric ceramic torsional oscillation (2), central metallic body (20), annulus (21), piezoelectric ceramic longitudinal vibration (4), goes up the stator that becket (5) is formed, rotor (7), mandrel (14); Be fixed on above the metal ring (21) on the central metallic body (20) from down and on intrinsic successively piezoelectric ceramic longitudinal vibration (4), go up metal ring (5), intrinsic successively from top to down piezoelectric ceramic torsional oscillation (2), following metal ring (1) below the metal ring (21), central metallic body (3) is fixed on the mandrel (14), rotor (7) bottom outer surface adhesive friction material (6), be installed on the mandrel (14) above the stator with journal bearing (13), with clamp nut (12) rotor compressed by axial thrust bearing (8), butterfly spring (9).
3. composite supersonic motor with great moment and longitudinal torque, it is characterized in that: it comprises by following becket (1), piezoelectric ceramic torsional oscillation (2), central metallic body (24), piezoelectric ceramic longitudinal vibration (4), goes up the stator that becket (5) is formed, rotor (7), mandrel (4); On the shoulder of central metallic body (24) from down and on intrinsic successively piezoelectric ceramic longitudinal vibration (4), last becket (5), intrinsic successively from top to down piezoelectric ceramic torsional oscillation (2) under the shoulder of central metallic body (18), following becket (1), central metallic body (18) is fixed on the mandrel (14), rotor (7) bottom outer surface adhesive friction material (6), be installed on the mandrel (14) above the stator with journal bearing (13), by axial thrust bearing (8), butterfly spring (9) compresses rotor with clamp nut (12), the spindle nose (11) that can be on motor rotates in the journal bearing (21) of shell (20) is equipped with in the upper end of rotor (7), stator and rotor (7) are outer to be equipped with in the housing of being made up of shell on the motor (20) and motor lower casing (23), on the motor, lower casing (20), (23) with intermetallic metal ring (18) with affixed being integral of screw (25).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111724 CN1384594A (en) | 2002-05-14 | 2002-05-14 | Composite supersonic motor with great moment and longitudinal torque |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02111724 CN1384594A (en) | 2002-05-14 | 2002-05-14 | Composite supersonic motor with great moment and longitudinal torque |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1384594A true CN1384594A (en) | 2002-12-11 |
Family
ID=4741715
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02111724 Pending CN1384594A (en) | 2002-05-14 | 2002-05-14 | Composite supersonic motor with great moment and longitudinal torque |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1384594A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100437329C (en) * | 2006-09-18 | 2008-11-26 | 浙江大学 | Micro-ultrasonic motor mobile phone quickcam image focusing structure |
| CN101310394B (en) * | 2005-10-21 | 2010-05-19 | 物理设备（Pi）两合公司 | Ultrasonic linear motor |
| CN104014836A (en) * | 2014-05-30 | 2014-09-03 | 东北大学 | Longitudinal-torsion composite ultrasonic vibration cutting device |
| CN109316645A (en) * | 2011-06-14 | 2019-02-12 | 株式会社根本杏林堂 | Syringe and control method for ultrasonic motor |
-
2002
- 2002-05-14 CN CN 02111724 patent/CN1384594A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101310394B (en) * | 2005-10-21 | 2010-05-19 | 物理设备（Pi）两合公司 | Ultrasonic linear motor |
| CN100437329C (en) * | 2006-09-18 | 2008-11-26 | 浙江大学 | Micro-ultrasonic motor mobile phone quickcam image focusing structure |
| CN109316645A (en) * | 2011-06-14 | 2019-02-12 | 株式会社根本杏林堂 | Syringe and control method for ultrasonic motor |
| CN109316645B (en) * | 2011-06-14 | 2021-04-27 | 株式会社根本杏林堂 | Injector and control method for ultrasonic motor |
| CN104014836A (en) * | 2014-05-30 | 2014-09-03 | 东北大学 | Longitudinal-torsion composite ultrasonic vibration cutting device |
| CN104014836B (en) * | 2014-05-30 | 2016-04-20 | 东北大学 | A kind of longitudinal-torsional composite ultrasonic vibration cutting device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1187876C (en) | Electric rotating mechanism and electric generating system using it | |
| CN1070655C (en) | Brushless dc. motor | |
| EP2261019B1 (en) | Servo drive system and continuous working system of press machine | |
| CN1315773A (en) | Scanning electric machine | |
| CN104964134B (en) | The head that a kind of use ultrasonic oscillator drives | |
| CN1084444C (en) | Bearing system and brushless DC motor using such system | |
| CN108011540A (en) | A kind of standing wave type ultrasonic step ripple motor | |
| CN1384594A (en) | Composite supersonic motor with great moment and longitudinal torque | |
| Nielsen et al. | Pole and segment combination in concentric magnetic gears: Vibrations and acoustic signature | |
| CN2852504Y (en) | Shockproof device for stator and stand in external rotor motor | |
| CN1909355A (en) | Rotary type ultraphonic motor | |
| CN2543278Y (en) | Compound ultrasonic electric machine | |
| CN1046066C (en) | Motor structure | |
| CN1907607A (en) | Magnet motive numerical control machine electricity main axis system without bearing and generator | |
| US5322369A (en) | Dynamic pressure bearing | |
| CN100392767C (en) | Magnetic suspension hard disc single free degree multi-function experiment platform | |
| CN2847669Y (en) | Permanent magnet DC brushless motor with sensor | |
| CN103199734B (en) | A kind of single-electrical signal drives two-way rotary ultrasonic motor | |
| CN103078554B (en) | The control method of thrust and adjusting device thereof between piezoelectric motor rotor | |
| CN1086933A (en) | The mounting structure of motor | |
| CN2590273Y (en) | Contraction easily assembly longitudinal torsion composite ultrasonic motor | |
| CN113472238B (en) | Self-aligning bearing-free parallel type ultrasonic motor | |
| JP3335113B2 (en) | Motor with speed detector | |
| Tokumoto et al. | Development of Lorentz force type self-bearing motor | |
| CN219802004U (en) | Disk type laminated flywheel motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |