CN205811879U - A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system - Google Patents
A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system Download PDFInfo
- Publication number
- CN205811879U CN205811879U CN201620500002.1U CN201620500002U CN205811879U CN 205811879 U CN205811879 U CN 205811879U CN 201620500002 U CN201620500002 U CN 201620500002U CN 205811879 U CN205811879 U CN 205811879U
- Authority
- CN
- China
- Prior art keywords
- rotor
- support
- gland
- foundation system
- precompression
- 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.)
- Withdrawn - After Issue
Links
- 239000000428 dust Substances 0.000 title claims abstract description 15
- 210000004907 gland Anatomy 0.000 claims abstract description 38
- 230000005489 elastic deformation Effects 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 239000000919 ceramic Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000002604 ultrasonography Methods 0.000 description 3
- 230000010355 oscillation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 239000000806 elastomer Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000010287 polarization Effects 0.000 description 1
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system, including central shaft, motor housing, rotor and gland, described motor housing, rotor are socketed on center shaft successively, and motor housing, rotor are arranged concentrically, and gland is arranged at central shaft top；Described rotor surface is provided with pre-pressure point, and gland contacts with pre-pressure point, and the thickness of rotor is the most thinning by center, is used for producing elastic deformation；Use this precompression rotor-support-foundation system, motor output stalling torque all can promote more than 50% with no-load speed, the output performance of traveling wave type ultrasonic motor can be greatly improved, provide solution for more application；And this precompression rotor-support-foundation system is that a kind of processing technique is simple, stator drive surface and friction rotor interface energy the most accessible precompression rotor-support-foundation system.
Description
Technical field
This utility model relates to a kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system, belongs to ultrasound electric machine field.
Background technology
Ultrasound electric machine is the small and special electric machine of a kind of novel concept.It utilizes the inverse piezoelectric effect of piezoelectric, excites elastomer micro breadth oscillation in supersonic range, and is converted thereof into rotation (straight line) motion of rotor (mover) by the rubbing action between stator and rotor (mover).Nineteen eighty-three, Japan Sashida proposes and has manufactured traveling wave type ultrasonic motor, and this motor achieves and is transformed into by row ripple continuously drive rotor by standing wave fixed point, regular drive rotor, greatly reduces stator and the fretting wear on rotor interface.Travelling-wave type rotary ultrasonic motor has piezo ceramic element at stator side surface mount, and this piezo ceramic element divides two groups of polarization, applies same frequency (in ultrasonic frequency domain), constant amplitude alternating voltage that phase contrast is 90 degree on two groups of piezo ceramic elements respectively.By the inverse piezoelectric effect of piezo ceramic element, two amplitude modal responses equal, the most all differences 90 degree can be inspired on the model frequency of stator.The superposition on stator of the two modal response forms row ripple.If now applying certain precompression on rotor, by the rubbing action between fixed and moving son, then, the micro breadth oscillation of stator surface particle will be converted to the rotary motion of rotor.The traveling wave type ultrasonic motor internal rotor proposed by Sashida is a continuous variable cross section formula loop configuration, and it applies precompression mode is that the shaft shoulder is joined directly together with rotor, and produces precompression with motor housing pressurization.This precompression rotor-support-foundation system has the disadvantage in that
1, internal rotor becomes interface loop configuration processing technique complexity, and difficulty of processing is big, and yield rate is low；
2, pressurizeing at the heart in the rotor, rotor outer end and motor stator contact portion easily occur warpage, friction rotor interface and stator drive surface to be difficult to completely attach to, be typically only capable to partial frictional interface and contacted with stator drive surface；
3, due to the incomplete contact between of frictional interface, motor output performance is relatively low.
Utility model content
This utility model provides a kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system, use this precompression rotor-support-foundation system, motor output stalling torque all can promote more than 50% with no-load speed, and the output performance of traveling wave type ultrasonic motor can be greatly improved, and provides solution for more application；And this precompression rotor-support-foundation system is that a kind of processing technique is simple, stator drive surface and friction rotor interface energy the most accessible precompression rotor-support-foundation system.
This utility model solves its technical problem and be the technical scheme is that
A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system, including central shaft, motor housing, rotor and gland, described motor housing, rotor are socketed on center shaft successively, and motor housing, rotor are arranged concentrically, and gland is arranged at central shaft top；Described rotor surface is provided with pre-pressure point, and gland contacts with pre-pressure point, and the thickness of rotor is the most thinning by center, is used for producing elastic deformation；
As of the present utility model further preferably, described rotor is step type rotor, offers square opening in the middle of rotor, and internal rotor upper surface is syllogic step, the lower surface of internal rotor is two-period form step, step thicknesses outwards the most thinning by rotor center；
As of the present utility model further preferably, described rotor-support-foundation system also includes Stator and electrical machine base, stator is arranged on motor base, rotor, gland, central shaft, motor housing are sequentially arranged on stator, and be all arranged concentrically, it is provided with adjustment pad between the shaft shoulder and the motor housing of described central shaft；
Further preferably described gland is detachably connectable with central shaft top as of the present utility model, and gland is concave band centre bore plectane, and central shaft is band shaft shoulder type circular shaft；
As of the present utility model further preferably, described gland is formed in one with central shaft；
As of the present utility model further preferably, the outer upper surface of described gland is provided with prominent first annular groove, and the external diameter of gland is equal with the second segment stepped diameters of upper rotor surface；
As of the present utility model further preferably, the inner surface of described motor housing is provided with the second prominent cannelure；
As of the present utility model further preferably, first annular groove and the second cannelure are after motor installation, and two cannelures become mutual tabling shape, form a labyrinth structure.
By above technical scheme, relative to prior art, this utility model has the advantages that
This utility model simplifies rotor processing technique, precompression is applied in upper rotor surface second segment step edge by gland, friction rotor interface is made to greatly improve with the situation that contacts of stator drive surface, experiment shows, compared with using conventional ultrasound motor precompression rotor-support-foundation system, traveling wave type ultrasonic motor output stalling torque all can promote more than 50% with no-load speed.
Accompanying drawing explanation
With embodiment, this utility model is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is to use traveling wave type ultrasonic sectional arrangement drawing of the present utility model；
Fig. 2 is the sectional type rotor structure sectional view that the utility model proposes；
Fig. 3 is the precompression rotor-support-foundation system structural representation that the utility model proposes；
Fig. 4 is the structural representation that gland of the present utility model is detachably connectable with central shaft top；
Fig. 5 is the structural representation that gland of the present utility model is formed in one with central shaft.
In figure: 1, motor housing；2, rotor；3, gland；4, stator；5 central shafts；6, pad is adjusted；7 motor bases.
Detailed description of the invention
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification, and basic structure of the present utility model is described the most in a schematic way, and therefore it only shows the composition relevant with this utility model.
As shown in Figure 1-Figure 3, a kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system of the present utility model, including central shaft, motor housing, rotor and gland, described motor housing, rotor are socketed on center shaft successively, motor housing, rotor are arranged concentrically, and gland is arranged at central shaft top；Described rotor surface is provided with pre-pressure point, and gland contacts with pre-pressure point, and the thickness of rotor is the most thinning by center；
As of the present utility model further preferably, described rotor is step type rotor, offers square opening in the middle of rotor, and internal rotor upper surface is syllogic step, the lower surface of internal rotor is two-period form step, step thicknesses outwards the most thinning by rotor center；Precompression needed for making rotor generation elastic deformation obtain motor rotation by gland effect, this structure can effectively occur elastic deformation and produce suitable precompression；
As of the present utility model further preferably, described rotor-support-foundation system also includes Stator and electrical machine base, stator is arranged on motor base, rotor, gland, central shaft, motor housing are sequentially arranged on stator, and be all arranged concentrically, it is provided with adjustment pad between the shaft shoulder and the motor housing of described central shaft, after motor housing and motor base are screwed, rotor performance goes out the precompression required for certain elastic deformation generation, and the size of precompressed force value is determined by adjusting pad；
Shown in Fig. 4, as of the present utility model further preferably, described gland is detachably connectable with central shaft top, gland is concave band centre bore plectane, central shaft is band shaft shoulder type circular shaft, first motor housing directly produces pressure to central shaft, then contacting pressure transmission to gland, finally by gland by pressure transmission to rotor by the shaft shoulder and gland；
Shown in Fig. 5, further preferably described gland is formed in one with central shaft as of the present utility model, and motor housing directly produces pressure to this integrative-structure, and by this integrative-structure by pressure transmission to rotor；
As of the present utility model further preferably, the outer upper surface of described gland is provided with prominent first annular groove, and the external diameter of gland is equal with the second segment stepped diameters of upper rotor surface；
As of the present utility model further preferably, the inner surface of described motor housing is provided with the second prominent cannelure；
As of the present utility model further preferably, first annular groove and the second cannelure are after motor installation, two cannelures become mutual tabling shape, form a labyrinth structure, it is possible to be prevented effectively between electric machine rotor friction fifth wheel and invade in bearing built-in on motor housing.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, all terms used herein (including technical term and scientific terminology) have with the those of ordinary skill in the application art be commonly understood by identical meaning.Should also be understood that those terms defined in such as general dictionary should be understood that have the meaning consistent with the meaning in the context of prior art, and unless defined as here, will not explain by idealization or the most formal implication.
The implication of "and/or" described herein refers to respective individualism or both simultaneous situations are included in interior.
The implication of " connection " described herein can be being directly connected between parts can also be by being indirectly connected with of other parts between parts.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, relevant staff can carry out various change and amendment completely in the range of without departing from this utility model technological thought.The content that the technical scope of this utility model is not limited in description, it is necessary to determine its technical scope according to right.
Claims (8)
1. a dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system, including central shaft, motor housing, rotor and gland, described motor housing, rotor are socketed on center shaft successively, motor housing, rotor are arranged concentrically, gland is arranged at central shaft top, it is characterised in that: described rotor surface is provided with pre-pressure point, and gland contacts with pre-pressure point, the thickness of rotor is the most thinning by center, is used for producing elastic deformation.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 1, it is characterized in that: described rotor is step type rotor, square opening is offered in the middle of rotor, internal rotor upper surface is syllogic step, the lower surface of internal rotor is two-period form step, step thicknesses outwards the most thinning by rotor center.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 2, it is characterized in that: described rotor-support-foundation system also includes Stator and electrical machine base, stator is arranged on motor base, rotor, gland, central shaft, motor housing are sequentially arranged on stator, and be all arranged concentrically, it is provided with adjustment pad between the shaft shoulder and the motor housing of described central shaft.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 3, it is characterised in that: described gland is detachably connectable with central shaft top, and gland is concave band centre bore plectane, and central shaft is band shaft shoulder type circular shaft.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 4, it is characterised in that: described gland is formed in one with central shaft.
6. according to the dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system described in claim 4 or 5, it is characterised in that: the outer upper surface of described gland is provided with prominent first annular groove, and the external diameter of gland is equal with the second segment stepped diameters of upper rotor surface.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 6, it is characterised in that: the inner surface of described motor housing is provided with the second prominent cannelure.
Dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system the most according to claim 7, it is characterised in that: first annular groove and the second cannelure are after motor installation, and two cannelures become mutual tabling shape, form a labyrinth structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500002.1U CN205811879U (en) | 2016-05-26 | 2016-05-26 | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620500002.1U CN205811879U (en) | 2016-05-26 | 2016-05-26 | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205811879U true CN205811879U (en) | 2016-12-14 |
Family
ID=57502185
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620500002.1U Withdrawn - After Issue CN205811879U (en) | 2016-05-26 | 2016-05-26 | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205811879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827148A (en) * | 2016-05-26 | 2016-08-03 | 南京航空航天大学 | Dust-proof traveling wave type ultrasonic motor pre-loaded rotor system |
-
2016
- 2016-05-26 CN CN201620500002.1U patent/CN205811879U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105827148A (en) * | 2016-05-26 | 2016-08-03 | 南京航空航天大学 | Dust-proof traveling wave type ultrasonic motor pre-loaded rotor system |
| CN105827148B (en) * | 2016-05-26 | 2018-01-12 | 南京航空航天大学 | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107046380B (en) | A kind of more spoke-type ultrasound electric machines | |
| JP2000152671A (en) | Ultrasonic motor | |
| CN205811879U (en) | A kind of dust protected traveling wave type ultrasonic motor precompression rotor-support-foundation system | |
| CN102437787A (en) | Novel rotating travelling-wave ultrasonic motor | |
| CN103516251A (en) | Vertical-bending-twisting compound rotary type ultrasonic motor piezoelectric vibrator | |
| CN103516253A (en) | Piezoelectric cantilever type ultrasonic motor | |
| CN206422711U (en) | A kind of rod-type paster longitudinal-torsional compound ultrasonic motor | |
| CN201656811U (en) | In-plane traveling wave rotary ultrasonic motor | |
| CN105827148A (en) | Dust-proof traveling wave type ultrasonic motor pre-loaded rotor system | |
| CN109525143A (en) | A kind of curved compound sheet ultrasound electric machine of diameter and its control method | |
| CN103078554B (en) | The control method of thrust and adjusting device thereof between piezoelectric motor rotor | |
| CN104467532A (en) | Double-side driving rotating type traveling wave ultrasonic motor | |
| CN205356186U (en) | Floor excitation formula displacement type longitrorse compound ultrasonic motor | |
| CN108111054B (en) | A kind of rotary-type supersonic motor that double elastic polymorphic structures pre-tighten | |
| CN203872083U (en) | Hollow ultrasonic motor for limiting stator and rotor contact pre-pressure | |
| CN205315524U (en) | Slider coupling | |
| CN210041673U (en) | Piezoelectric motor support for mechanical finger joint and mechanical finger joint | |
| CN203596763U (en) | Longitudinal-bending-torsional composite rotary supersonic wave motor piezoelectric oscillator | |
| CN105939130B (en) | Stator internally-arranged type multiple degrees of freedom piezoelectric actuator | |
| CN207117503U (en) | Rotor and the ultrasound electric machine of rotating shaft integration | |
| CN206775411U (en) | One kind is exempted to adjust the coaxial double stators and double rotors plate-like travelling wave supersonic motor of gap | |
| CN107280944A (en) | A kind of vibration component for cosmetic stick | |
| CN202634317U (en) | Center-adjustable-type double-vibrator traveling-wave-type ultrasonic motor | |
| WO2018077137A1 (en) | Ultrasonic motor | |
| CN105048865A (en) | Elastic blade type radial transduction type single-phase supersonic motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20161214 Effective date of abandoning: 20180112 |
|
| AV01 | Patent right actively abandoned |