CN201518456U - Mini-size rod type thread ultrasonic motor - Google Patents
Mini-size rod type thread ultrasonic motor Download PDFInfo
- Publication number
- CN201518456U CN201518456U CN2009202166133U CN200920216613U CN201518456U CN 201518456 U CN201518456 U CN 201518456U CN 2009202166133 U CN2009202166133 U CN 2009202166133U CN 200920216613 U CN200920216613 U CN 200920216613U CN 201518456 U CN201518456 U CN 201518456U
- Authority
- CN
- China
- Prior art keywords
- stator
- rotor
- mini
- screw thread
- piezoelectric ceramic
- 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
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
The utility model relates to a mini-size rod type thread ultrasonic motor, and belongs to the field of motors. The mini-size rod type thread ultrasonic motor consists of a stator and a rotor, wherein the stator is of variable cross-section plunger type, and is provided with outer threads on the circumference of the outer surface thereof, the rotor is sleeved outside the stator, and the circumference of the inner wall of the rotor is provided with inner threads for inosculating the outer threads of the stator. The small cross section of the stator is provided with piezoelectric ceramic, a baffle plate, piezoelectric ceramic and a pressing block in turn, the outer end of the pressing block is provided with a screw cap to screw with the stator. The mini-size rod type thread ultrasonic motor has the advantages of reasonable design, compact structure, low speed, large torque, fast response and excellent electromagnetic compatibility, can directly drive loads to disconnect and automatically lock, and can be applied in camera systems for sharing sensitive focusing, clear images and excellent effect.
Description
Technical field
The utility model belongs to machine field, particularly relates to a kind of minitype rod screw thread ultrasound electric machine.
Background technology
Ultrasound electric machine is an inverse piezoelectric effect of utilizing piezoelectric ceramic, produce ultrasonic vibration at stator surface, and drive a kind of motor of rotor motion by stator, can be used for as the camera automatic focusing system, joint of robot is adjusted the elevation angle, the lifting of car seat, use fields such as precision positioning, general ultrasound electric machine has following characteristics: the slow-speed of revolution, high pulling torque do not need reducing gear can directly drive load; Volume is little, and structure is flexible; It is fast that starting stops response, and the response time is less than 1 millisecond; Do not produce electromagnetic interference, be not subjected to electromagnetic interference yet; Square between self-sustaining is arranged, gearless gap, but precision positioning, advantage such as running noises is little.But the ultrasound electric machine that now is used for the camera system optical focusing, not only the design of electrical motor volume big, install inconvenient, and its shooting focusing insensitive, make that image definition is not high, shooting effect is undesirable.
Summary of the invention
The utility model is intended to overcome the deficiencies in the prior art, and a kind of minitype rod screw thread ultrasound electric machine is provided.
Minitype rod screw thread ultrasound electric machine of the present utility model, be that stator and rotor formation have been installed in housing, described stator is to be made of stator head and stator bar, the stator head is plunger type and is provided with external screw thread at its outer surface circumference, outside the stator head, be with rotor, on the inwall circumference of rotor, be provided with internal thread and be meshed with the external screw thread of stator head.Be provided with piezoelectric ceramic, dividing plate, piezoelectric ceramic and briquetting from the inside to the outside successively on the stator head all-in-one-piece stator bar, have nut to be tightened mutually with the stator bar in the briquetting outer end.
As further improvement of the utility model, described stator is cylindrical variable cross-section, and installing on its small bore stator bar on piezoelectric ceramic, the heavy in section stator head has screw thread.
The operation principle of minitype rod screw thread ultrasound electric machine of the present utility model is: utilize the inverse piezoelectric effect of piezoelectric ceramic to inspire the elastomer vibration, realize the conversion of electric energy to mechanical energy, by the rubbing action between the rotor vibration of stator is converted into the rotation (translation) of rotor again, ultrasound electric machine utilizes inverse piezoelectric effect to produce ultrasonic vibration, under action of alternative electric field, pass through ceramic deformation, directly electric energy is transformed into mechanical energy, ultrasound electric machine does not have magnetic pole and winding, wearing and tearing for the relative motion that reduces between vibrating body and the moving body produces add the last layer friction material between the two.When on the piezoelectric ceramic of vibrating body, applying the alternating voltage of ultrasonic frequency, can in vibrating body, inspire the ultrasonic vibration of several KHz by inverse piezoelectric effect, the particle that makes the vibrating body surface play driving action forms the ultrasonic frequency microscopic vibration of certain movement track, and this microscopic vibration makes moving body do continuous macroscopic motion along a certain direction by the rubbing action between vibrating body and the moving body.
Minitype rod screw thread ultrasound electric machine of the present utility model, reasonable in design, compact conformation, have low-speed big, can directly drive load and cut off self-lock, respond fast, advantage such as Electro Magnetic Compatibility is good, be applied to camera system focusing sensitivity, image is clear, effective.
Description of drawings
Figure of description is the structural representation of the utility model minitype rod screw thread ultrasound electric machine.
Embodiment
Minitype rod screw thread ultrasound electric machine of the present utility model is that stator and rotor formation have been installed in housing, and stator is that cylindrical variable cross-section is to be made of stator head 1 and stator bar 3.Heavy in section stator head 1 is provided with external screw thread for plunger type and at its outer surface circumference, is with rotor 2 outside stator head 1, is provided with internal thread and is meshed with the external screw thread of stator head 1 on the inwall circumference of rotor 2.Be provided with piezoelectric ceramic 4, dividing plate 5, piezoelectric ceramic 6 and briquetting 7 from the inside to the outside successively on the stator head 1 all-in-one-piece small bore stator bar 3, have nut 8 to be tightened mutually in briquetting 7 outer ends with stator bar 3.
Below in conjunction with accompanying drawing, structure of the present utility model and principle are described further, stator body is the variable cross-section column structure, wherein threaded portion is that driving head contacts with mover, two groups of piezoelectric ceramic rings have been used as exciting, wherein piezoelectric ceramic one produces axial vibration as the excitation stator body, reverse vertically and second piezoelectric ceramic produces stator, when these two motions act on stator body simultaneously, can produce elliptic motion in the stator body thread surface, make the driving head of stator produce micro breadth oscillation,, select best operation mode to make the vibration maximum of stator according to stator structure; Described rotor is a female thread structure, when the stator driving head produces vibration, because the deadweight of stator provides the precompression between fixed/rotor, rotates thereby drive rotor, under the guiding of screw thread its rotation is converted to rectilinear motion.
Claims (2)
1. minitype rod screw thread ultrasound electric machine, be that stator and rotor formation have been installed in housing, it is characterized in that stator is to be made of stator head (1) and stator bar (3), stator head (1) is provided with external screw thread for plunger type and at its outer surface circumference, outside stator head (1), be with rotor (2), on the inwall circumference of rotor (2), be provided with internal thread and be meshed with the external screw thread of stator head (1); Be provided with piezoelectric ceramic (4), dividing plate (5), piezoelectric ceramic (6) and briquetting (7) on stator head (1) the all-in-one-piece stator bar (3) from the inside to the outside successively, have nut (8) to be tightened mutually in briquetting (7) outer end with stator bar (3).
2. minitype rod screw thread ultrasound electric machine as claimed in claim 1 is characterized in that described stator is cylindrical variable cross-section, and its small bore stator bar (3) is gone up to install on piezoelectric ceramic, the heavy in section stator head (1) screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202166133U CN201518456U (en) | 2009-09-14 | 2009-09-14 | Mini-size rod type thread ultrasonic motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202166133U CN201518456U (en) | 2009-09-14 | 2009-09-14 | Mini-size rod type thread ultrasonic motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201518456U true CN201518456U (en) | 2010-06-30 |
Family
ID=42499179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202166133U Expired - Fee Related CN201518456U (en) | 2009-09-14 | 2009-09-14 | Mini-size rod type thread ultrasonic motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201518456U (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133488A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Sandwich type free beam torsional vibration operating mode unlockable nut |
| CN103133490A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Sandwich type free beam longitudinal vibration operating mode unlockable nut |
| CN103133487A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Unlockable nut for switching operating modes of patch type cantilever beam lengthways torsion mode |
| CN103133492A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Unlockable nut of patch type cantilever beam torsional vibration operating mode |
| CN103148081A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in paster-type cantilever beam composite bending-vibration working mode |
| CN103148082A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in paster-type free beam composite bending-vibration working mode |
| CN103148079A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in sandwich cantilever longitrorse mode conversion working mode |
| CN103161811A (en) * | 2013-03-12 | 2013-06-19 | 哈尔滨工业大学 | Unlockable nut of bending vibration work pattern of surface mount type cantilever beam |
| CN103174725A (en) * | 2013-03-12 | 2013-06-26 | 哈尔滨工业大学 | Nut allowing unlocking in sandwich type free beam bending vibration working pattern |
| CN103174724A (en) * | 2013-03-12 | 2013-06-26 | 哈尔滨工业大学 | Nut allowing unlocking in sandwich type cantilever beam bending vibration working pattern |
| CN112024342A (en) * | 2020-07-09 | 2020-12-04 | 江苏大学 | Ultrasonic device and method capable of switching vibration modes |
-
2009
- 2009-09-14 CN CN2009202166133U patent/CN201518456U/en not_active Expired - Fee Related
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133488A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Sandwich type free beam torsional vibration operating mode unlockable nut |
| CN103133490A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Sandwich type free beam longitudinal vibration operating mode unlockable nut |
| CN103133487A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Unlockable nut for switching operating modes of patch type cantilever beam lengthways torsion mode |
| CN103133492A (en) * | 2013-03-12 | 2013-06-05 | 哈尔滨工业大学 | Unlockable nut of patch type cantilever beam torsional vibration operating mode |
| CN103148081A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in paster-type cantilever beam composite bending-vibration working mode |
| CN103148082A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in paster-type free beam composite bending-vibration working mode |
| CN103148079A (en) * | 2013-03-12 | 2013-06-12 | 哈尔滨工业大学 | Unlockable nut in sandwich cantilever longitrorse mode conversion working mode |
| CN103161811A (en) * | 2013-03-12 | 2013-06-19 | 哈尔滨工业大学 | Unlockable nut of bending vibration work pattern of surface mount type cantilever beam |
| CN103174725A (en) * | 2013-03-12 | 2013-06-26 | 哈尔滨工业大学 | Nut allowing unlocking in sandwich type free beam bending vibration working pattern |
| CN103174724A (en) * | 2013-03-12 | 2013-06-26 | 哈尔滨工业大学 | Nut allowing unlocking in sandwich type cantilever beam bending vibration working pattern |
| CN103133490B (en) * | 2013-03-12 | 2015-01-28 | 哈尔滨工业大学 | Sandwich type free beam longitudinal vibration operating mode unlockable nut |
| CN103148081B (en) * | 2013-03-12 | 2015-02-18 | 哈尔滨工业大学 | Unlockable nut in paster-type cantilever beam composite bending-vibration working mode |
| CN103148082B (en) * | 2013-03-12 | 2015-02-18 | 哈尔滨工业大学 | Unlockable nut in paster-type free beam composite bending-vibration working mode |
| CN103148079B (en) * | 2013-03-12 | 2015-03-04 | 哈尔滨工业大学 | Unlockable nut in sandwich cantilever longitrorse mode conversion working mode |
| CN103174724B (en) * | 2013-03-12 | 2015-03-18 | 哈尔滨工业大学 | Releasable nut in sandwich type cantilever beam bending vibration working pattern |
| CN103174725B (en) * | 2013-03-12 | 2015-03-18 | 哈尔滨工业大学 | Nut allowing unlocking in sandwich type free beam bending vibration working pattern |
| CN103161811B (en) * | 2013-03-12 | 2015-04-01 | 哈尔滨工业大学 | Unlockable nut of bending vibration work pattern of surface mount type cantilever beam |
| CN103133488B (en) * | 2013-03-12 | 2015-04-08 | 哈尔滨工业大学 | Sandwich type free beam torsional vibration operating mode unlockable nut |
| CN103133492B (en) * | 2013-03-12 | 2015-04-22 | 哈尔滨工业大学 | Unlockable nut of patch type cantilever beam torsional vibration operating mode |
| CN112024342A (en) * | 2020-07-09 | 2020-12-04 | 江苏大学 | Ultrasonic device and method capable of switching vibration modes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201518456U (en) | Mini-size rod type thread ultrasonic motor | |
| EP1959511B1 (en) | A thread driven polyhedron ultrasonic motor | |
| CN201075845Y (en) | Screwed cap type ultrasound electric machine | |
| CN103051243B (en) | Hollow ultrasonic motor with built-in vibrating ring | |
| CN101860259B (en) | Single-electrical signal-stimulated rotation ultrasonic motor | |
| CN208597035U (en) | A kind of rotary-type linear ultrasonic electric machine driving focusing, zoom lens | |
| CN103078554A (en) | Method and devices for regulating compression force between stator and rotor of piezoelectric motor | |
| CN107947630B (en) | Hollow ultrasonic motor with outer ring output | |
| CN103296832B (en) | A kind of permanent magnetism translational meshing motor | |
| CN203554183U (en) | Single eccentric shaft type meshed motor | |
| CN203339909U (en) | Three-phase meshing motor of inner rolling type | |
| CN112696476B (en) | Electric loader with electromagnetic buffer device | |
| CN101291096A (en) | Horizontal moving type engaging motor | |
| CN105587790B (en) | Strength output sandwich mode conversion, which increases, turns round speed-adjustable clutch and its control method | |
| CN109378994B (en) | A kind of self-locking pole-climbing formula piezoelectric actuator of alternating | |
| CN204387155U (en) | A kind of longitudinal-shaking sandwich formula beam slab complex excitation increases turns round variable-speed clutch | |
| CN204533278U (en) | There is the clutch increasing and turn round speed-regulating function | |
| CN105587792B (en) | Paster sandwich complex excitation, which increases, turns round speed-adjustable clutch and its control method | |
| CN105281597A (en) | Powerful output sandwich type mode conversion ultrasonic motor, drive platform and drive method thereof | |
| CN118100515B (en) | Driving and transmission integrated device based on logarithmic spiral oscillating tooth transmission | |
| CN213661286U (en) | Improved shell-free rotary linear motor | |
| CN105587794B (en) | SMD increase turns round speed-adjustable clutch and its control method | |
| CN202696502U (en) | Hollow ultrasonic motor | |
| CN209896941U (en) | Microminiature high-power tubular linear ultrasonic motor | |
| CN204592070U (en) | A kind of torsional oscillation sandwich beam slab complex excitation increases turns round variable-speed clutch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20100914 |