CN206790372U - A kind of adjustable hollow supersonic motor of precompression - Google Patents
A kind of adjustable hollow supersonic motor of precompression Download PDFInfo
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- CN206790372U CN206790372U CN201720322876.7U CN201720322876U CN206790372U CN 206790372 U CN206790372 U CN 206790372U CN 201720322876 U CN201720322876 U CN 201720322876U CN 206790372 U CN206790372 U CN 206790372U
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- rotor
- stator
- precompression
- friction plate
- piezoelectric ceramic
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Abstract
The utility model provides a kind of adjustable hollow supersonic motor of precompression, including transmission mechanism, retaining mechanism and shell.By piezoelectric ceramic piece symmetric partitioning, inverse buckling effect occurs under electric signal excitation for each subregion, stator is bonded together with piezoelectric ceramic piece, inspire that several amplitudes are equal, dephased modal response, modal response are superimposed to form traveling wave in stator surface over time and space under piezoelectric ceramic piece inverse piezoelectric effect.Friction plate is cohered in rotor lower surface, precompression is applied in upper rotor surface by lock-screw and spring, make stator remain with friction plate and rotor to contact, web wherein on rotor is pyramidal structure, structure is without mutation, stator, rotor interface pressure distribution are uniform under precompression effect, and have a circle groove on the substrate of stator, play vibration isolation effect.By the rubbing action between stator and friction plate, with regard to that rotor can be driven to rotate, quill shaft one end is connected the traveling wave of stator surface by key with the keyway on rotor, is rotated under rotor drive, power output, driving load.The utility model is simple in construction, highly reliable, applied widely.
Description
Technical field
It the utility model is related to Micro ＆ Special Motor Technology field, and in particular to a kind of adjustable hollow ultrasonic wave electricity of precompression
Machine.
Background technology
Supersonic motor is a kind of new small and special electric machine, and its operation principle is the inverse piezoelectric effect using piezoelectric, is swashed
Elastomer micro breadth oscillation in supersonic range is sent out, and rotor is converted vibrations into by the rubbing action between stator, rotor
Rotary motion, power output, driving load.It does not need magnet and coil, has broken and has been turned so far by galvanomagnetic-effect
Speed and the concept of torque, it is one of new and high technology in contemporary scientific forward position.
Existing supersonic motor stator, the precompression of rotor are typically applied by the deformation of rotor or spring, supersonic motor
Vibration is produced during work, the deformation of rotor and spring also changes therewith, and unknown obscure is presented in the precompression between stator, rotor
State, and conventional ultrasonic wave motor is completed that rear precompression is unadjustable, however the precompression between stator, rotor for
The performance of supersonic motor has important influence, and the uncertainty of precompression has a strong impact on ultrasound between this stator, rotor
The reliability and performance of ripple motor, limit the application of supersonic motor.Therefore, it is necessary to it is adjustable to design a kind of precompression
The supersonic motor of section, apply precompression under spring and the dual deformation of rotor, and the precompression between stator, rotor is with super
The vibration of sound wave motor can be adjusted at any time by retaining mechanism, can so be greatly enhanced supersonic motor output performance
Stability.
The content of the invention
The defects of for above-mentioned prior art, the utility model provide a kind of adjustable hollow ultrasonic wave electricity of precompression
Machine, the precompression between this supersonic motor stator, rotor apply jointly by the pyramidal structure and spring of stator epiplastron,
Precompression is adjustable, and structure is reliable.
Technical scheme is used by the utility model solves its technical problem：Mainly include transmission mechanism, retaining mechanism
And shell.Transmission mechanism includes piezoelectric ceramic piece, stator, friction plate, rotor and quill shaft etc.；Retaining mechanism is mainly by locking screw
Nail, spring etc. form；Shell includes upper lid, base and hollow bearing end cap etc..It is characterized in that piezoelectric ceramic piece is symmetrically divided
Area, each subregion apply the electric signal excitation of certain phase difference, and inverse buckling effect occurs under electric signal excitation for piezoelectric ceramic piece,
Stator is bonded together with piezoelectric ceramic piece, inspired under piezoelectric ceramic piece inverse piezoelectric effect several amplitudes it is equal, when
Between and spatially have the modal response of certain phase difference, modal response is superimposed to form traveling wave in stator surface.Friction plate coheres
In rotor lower surface, certain precompression is applied in upper rotor surface by lock-screw and spring, friction plate is begun with stator
Contact is kept eventually, and the wherein web of rotor is pyramidal structure, and structure is without mutation, stator, rotor interface under precompression effect
Pressure distribution it is uniform, stator and friction plate and rotor can realize it is good be bonded, and have a circle groove on the substrate of stator,
Play vibration isolation effect.By the rubbing action between stator and friction plate, the traveling wave of stator surface with regard to that rotor can be driven to rotate, in
Empty axle is connected by key with keyway on rotor, and the quill shaft other end is fixed on bearing, and bearing is arranged on base, by bearing end
Lid is fixed, and quill shaft rotates under rotor drive, power output, driving load.The utility model is simple in construction, and precompression relies on
Spring and rotor web pyramidal structure deformation collective effect apply, and can be adjusted by lock-screw, stator, rotor contact
Face precompression is evenly distributed, highly reliable, and stator, rotor and quill shaft are hollow structure, applied widely.
Compared with prior art, the beneficial effects of the utility model are：Hollow supersonic motor stator, rotor and quill shaft
It is hollow structure so that supersonic motor is compact-sized, and quality is lighter, while can more preferably utilize hollow position, the scope of application
It is wider.Compared with conventional ultrasonic wave motor, the utility model is applied pre- jointly using locking device and rotor web pyramidal structure
The mode of pressure, because the pyramidal structure of spring and rotor epiplastron is flexibility, the precompression between stator, rotor is with ultrasonic wave
Vibration when motor works is adjusted at any time, can so be greatly enhanced the stability of supersonic motor performance, and avoids turning
The situation that son deformation is excessive and causes weak link to be destroyed occurs, so as to improve the reliability of supersonic motor.
Brief description of the drawings
Fig. 1 is a kind of adjustable hollow supersonic motor overall structure diagram of precompression
Fig. 2 is a kind of adjustable hollow supersonic motor stator structure schematic diagram of precompression
Fig. 3 is a kind of adjustable hollow supersonic motor rotor structure schematic diagram of precompression
In the figures above：1st, lock-screw；2nd, upper lid；3rd, spring；4th, quill shaft；5th, rotor；6th, friction plate；7th, bolt；
8th, stator；9th, piezoelectric ceramic piece；10th, base；11st, screw；12nd, bearing；13rd, bearing (ball) cover；14th, groove；15th, keyway；16th, abdomen
Plate.
Embodiment
As shown in Figure 1,3, the utility model mainly includes transmission mechanism, retaining mechanism and shell.Transmission mechanism includes pressure
Electroceramics piece 9, stator 8, friction plate 6, rotor 5 and quill shaft 4 etc.；Retaining mechanism is mainly made up of lock-screw 1, spring 3 etc.；
Shell includes upper lid 2, base 10 and bearing (ball) cover 13 etc..It is characterized in that using piezoelectric ceramic piece 9 under electric signal excitation
Inverse piezoelectric effect, stress and deformation are produced, piezoelectric ceramic piece 9 coheres to be arranged on base 10 in the lower surface of stator 8, stator 8, will
The symmetric partitioning of piezoelectric ceramic piece 9, each subregion apply the electric signal with certain phase difference and encouraged, and stator 8 is in piezoelectric ceramic piece 9
Inspire that several amplitudes are equal, have the modal response of certain phase difference, mode over time and space under inverse piezoelectric effect
Response is superimposed to form traveling wave on the surface of stator 8.Friction plate 6 is cohered in the lower surface of rotor 5, the screw thread knot of lock-screw 1 and upper lid 2
Structure coordinates, and spring 3 is enclosed on the lower end of lock-screw 1, and upper lid 2 is fixed on base 10 by bolt 7, and lock-screw 1 and spring 3 are matched somebody with somebody
Close and apply certain pressure in the upper surface of rotor 5, the pyramidal structure deformation and the deformation of spring 3 of the epiplastron 16 of rotor 5 make stator 8 and
Friction plate 6 and rotor 5 remain contact, and the wherein pyramidal structure of the epiplastron 16 of rotor 5 avoids rotor 5 without structural mutation
Deform situation that is excessive and causing weak link to be destroyed to occur, stator 8, the distribution of the interface pressure of rotor 5 under precompression effect
Uniformly.By the rubbing action between stator 8 and friction plate 6, the traveling wave on the surface of stator 8 is with regard to that can drive rotor 5 to rotate, rotor 5
It is connected by key with the keyway 15 of one end on quill shaft 4, the other end of quill shaft 4 is fixed on bearing 12, and bearing 12 is arranged on bottom
On seat 10, fixed by bearing (ball) cover 13, bearing (ball) cover 13 is fixed on base 10 by screw 11, and quill shaft 4 drives in rotor 5
Lower rotation, power output, driving load.
As shown in Fig. 2 there is a circle groove 14 on the substrate of stator 8, the matrix of stator 8 and tooth are kept apart, in ultrasonic wave
Motor plays vibration isolation effect when working.The utility model is simple in construction, and quality is lighter, while can more preferably utilize hollow position, fits
Wider with scope, precompression applies by the pyramidal structure of spring 3 and the epiplastron 16 of rotor 5 deformation collective effect, passes through locking
The precompression of screw 1 can be adjusted, and stator 8, the interface pressure of rotor 5 are evenly distributed, highly reliable.
For examples detailed above only to illustrate technical concepts and features of the present utility model, its object is to allow be familiar with technique
Personage can understand content of the present utility model and implement according to this, can not be all in this, as the scope of protection of the utility model
The equivalent change or modification made according to utility model Spirit Essence, it should all cover within the scope of protection of the utility model.
Claims (3)
- A kind of 1. adjustable hollow supersonic motor of precompression, it is characterised in that：Hollow supersonic motor includes transmission mechanism, lock Tight mechanism and shell；By piezoelectric ceramic piece symmetric partitioning, inverse buckling occurs under the excitation of dephased electric signal for each subregion Effect, stator are bonded together with piezoelectric ceramic piece, inspired under piezoelectric ceramic piece inverse piezoelectric effect several amplitudes it is equal, Dephased modal response, modal response are superimposed to form traveling wave in stator surface over time and space；Friction plate coheres In rotor lower surface, pressure is applied in upper rotor surface by locking nut and spring, the pyramidal structure of rotor epiplastron occurs Deformation, makes stator be remained with friction plate and rotor and contacts, pass through the rubbing action between stator and friction plate, stator surface Traveling wave with regard to that rotor can be driven to rotate, quill shaft one end is connected with rotor, is rotated under rotor drive, power output, and driving is negative Carry.
- A kind of 2. adjustable hollow supersonic motor of precompression according to claim 1, it is characterised in that：Described rotor On web be pyramidal structure, stator, rotor interface precompression apply jointly by the deformation of spring and pyramidal structure.
- A kind of 3. adjustable hollow supersonic motor of precompression according to claim 1 or 2, it is characterised in that：Described There is a circle groove on the substrate of stator, when ultrasound electric machine works, play vibration isolation effect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322876.7U CN206790372U (en) | 2017-03-30 | 2017-03-30 | A kind of adjustable hollow supersonic motor of precompression |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720322876.7U CN206790372U (en) | 2017-03-30 | 2017-03-30 | A kind of adjustable hollow supersonic motor of precompression |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206790372U true CN206790372U (en) | 2017-12-22 |
Family
ID=60706870
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720322876.7U Expired - Fee Related CN206790372U (en) | 2017-03-30 | 2017-03-30 | A kind of adjustable hollow supersonic motor of precompression |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206790372U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932597A (en) * | 2019-11-25 | 2020-03-27 | 南京航空航天大学 | Variable frequency vibration method capable of shortening response time and vibration actuator |
| CN112290828A (en) * | 2020-10-30 | 2021-01-29 | 河南师范大学 | Ultrasonic motor with axial preloading |
| CN113395014A (en) * | 2021-06-02 | 2021-09-14 | 温州大学 | Miniature high-rotation-speed hollow ultrasonic motor |
-
2017
- 2017-03-30 CN CN201720322876.7U patent/CN206790372U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110932597A (en) * | 2019-11-25 | 2020-03-27 | 南京航空航天大学 | Variable frequency vibration method capable of shortening response time and vibration actuator |
| CN112290828A (en) * | 2020-10-30 | 2021-01-29 | 河南师范大学 | Ultrasonic motor with axial preloading |
| CN113395014A (en) * | 2021-06-02 | 2021-09-14 | 温州大学 | Miniature high-rotation-speed hollow ultrasonic motor |
| CN113395014B (en) * | 2021-06-02 | 2023-07-11 | 温州大学 | Miniature high-rotation-speed hollow ultrasonic motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171222 Termination date: 20190330 |