CN201341098Y - Ultrasonic motor transmitting powder by hollow thread - Google Patents
Ultrasonic motor transmitting powder by hollow thread Download PDFInfo
- Publication number
- CN201341098Y CN201341098Y CNU2008202224897U CN200820222489U CN201341098Y CN 201341098 Y CN201341098 Y CN 201341098Y CN U2008202224897 U CNU2008202224897 U CN U2008202224897U CN 200820222489 U CN200820222489 U CN 200820222489U CN 201341098 Y CN201341098 Y CN 201341098Y
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- rotor
- stator
- electric machine
- rotating shaft
- ultrasound electric
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Abstract
The utility model pertains to the field of small and special motors and particularly relates to an ultrasonic motor transmitting powder by hollow thread. Traditional electromagnetic micro-motors of the prior art has high rotating speed and low conversion efficiency and is difficult to be applied to the field of micro drive due to the effect of large volume, electromagnetic interference and low power density. The utility model is characterized in that: the ultrasonic motor comprises a shell, a rotating shaft, an end cover, a bearing, a stator and a rotor; the rotating shaft adopts a hollow and threaded structure; the stator is connected with the end cover in a interference fit manner; the rotor is connected with the rotating shaft in a inference fit manner; one side of the rotor is provided with the stator and the other side thereof is provided with an adjusting washer and a bearing; the rotor is in interference fit with the end cover; and the end cover is connected with the shell by a fastening screw so as to form the ultrasonic motor. The utility model provides an ultrasonic motor which has simple structure, good electromagnetic compatibility and convenient debugging and can be connected with load directly as well as converts the rotary motion into linear motion.
Description
Technical field
The utility model belongs to the small and special electric machine field, is specifically related to a kind of ultrasound electric machine of cannulated threaded transferring power.
Background technology
Ultrasound electric machine has been broken through the notion of conventional motors, it does not have magnet steel and winding, do not rely on electromagnetic induction to transmit energy, it is the inverse piezoelectric effect of utilizing piezoelectric ceramic, the conversion of the stretching vibration pattern by piezoelectric ceramic and the design of coupling and special construction are amplified the microdeformation of material by resonance and the friction coupling converts the macroscopic motion of rotor to.
The common rotating speed of traditional electromagnetic micro electric motor is very high, and torque is very little, conversion efficiency less than 10%; There is magnetic core structure in itself, can't work in high-intensity magnetic field, and is influential to external magnetic field again; Usually require very low rotating speed in SERVO CONTROL, must increase reducing gear, cause volume to increase, transmission accuracy does not satisfy requirement.
Existing ultrasound electric machine has output shaft usually, adopt the design of dish spring at structural design rotor metalwork, the public end of motor electrode uses screw to link to each other with shell, but in the microminiature motor of stator diameter≤25mm, the restriction that is subjected to the locus has been difficult to continue to use these structures.
The utility model content
The purpose of this utility model is to design a kind of ultrasound electric machine of cannulated threaded transferring power, and microsystem middle and slow speed of revolution, big moment, magnetic compatibility feature are good to satisfy, the requirement of cannulated threaded transferring power.
For achieving the above object, the technical scheme that the utility model is taked is:
Special character of the present utility model is: the ultrasound electric machine of described cannulated threaded transferring power comprises casing, rotating shaft, end cap, bearing, stator and rotor; The hollow belt helicitic texture is adopted in described rotating shaft; Described stator is connected by interference fit with end cap, described rotor is connected by interference fit with rotating shaft, and a side of rotor is provided with stator, and opposite side is provided with adjusts packing ring, bearing, itself and end cap interference fit connect and compose ultrasound electric machine by trip bolt between end cap and the casing.
Above-mentioned stator is by the stator metallic object and piezoelectric ceramic is bonding forms.
Above-mentioned rotor is by the rotor metallic object and friction plate is bonding forms; Tooth top on the stator metallic object contacts with the friction rotor sheet.
Above-mentioned rotor metallic object is a class helix elastic part.
Above-mentioned extraction electrode is special-shaped flexible printing film, and the public end of motor is film circle part and bonding the forming of stator metalwork supporting surface.
The utility model has solved following problem with respect to prior art:
1, the motor stator diameter smaller or equal to 25mm in, can obtain low-speed and large-torque.Compare with the traditional electrical magneto, its power density has improved 2-4 doubly, and conversion efficiency has improved 2-3 doubly;
2, Electro Magnetic Compatibility is good, both can work in high-intensity magnetic field, again to not influence of magnetic field;
3, control precision improves 1-2 magnitude than traditional electromagnetic machine;
4, by the design of hollow belt helicitic texture, load can be directly driven, rectilinear motion can be converted into rotatablely moving again.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is a left view of the present utility model;
Fig. 3 is the structural representation of rotor;
Fig. 4 is the structural representation of cannulated threaded output shaft;
Fig. 5 is a flexible printing film schematic diagram.
Among the figure: the 1-stator; The 2-end cap; 3-flexible printing film; The 4-insulating washer;
The 5-rotor; The 6-casing; 7-adjusts packing ring; The 8-bearing;
The 9-rotating shaft; The 10-fixture; 13-rotor metalwork; The 14-friction plate.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is elaborated.
Referring to Fig. 1,2, the utility model comprises casing 6, rotating shaft 9, end cap 2, bearing 7, stator 1, rotor 5.Interference fit between each parts is controlled at 0.02～0.04mm, and assembly manipulation is implemented conveniently on the one hand, has also reached the reliability that cooperates on the other hand.
Referring to Fig. 4, the hollow belt helicitic texture is adopted in rotating shaft 9, can directly connect load, and output rotatablely moves, and can will rotatablely move by leading screw again is converted into rectilinear motion.
Referring to Fig. 3,, stator 1 is made up of stator metalwork and piezoelectric ceramic, its bond medium is middle temperature electrode glue, simultaneously with the gluing extraction electrode that connects flexible printing film and motor of kind electrode, uses special-purpose positioning tool in the bonding process.Rotor 5 is made up of rotor metalwork 13 and friction plate 14, its bond medium is a specific epoxy glue, also need use special-purpose positioning tool, its bondline thickness is controlled by being applied on the frock torsion, 4～6 microns of scopes, rotor metalwork 13 uses the special tooling punching out to become the elastic component of class helical structure.
The stator metalwork along the circumferential direction can have even distribution 30 or 40 teeth groove, and teeth groove has increased the flexibility of stator metalwork, and 1～2 micron amplitude of piezoelectric ceramic is enlarged into 6～8 microns.
Referring to Fig. 5, A, B are the two-phase of motor, and F is feedback, and C is the public end of motor.
By the enforcement of above technology, make the volume of ultrasound electric machine reduce 20%, have only half with traditional electromagnetic machine comparison volume, in precision control field wide application prospect is arranged.Replace traditional servomotor at present and be applied in accurate position control system, as optical testing instrument, Infrared pointer device, measurement of magnetic field equipment, also will be applied in the fields such as hard drive of space probe, joint of robot driving and computer.
Claims (4)
1, a kind of ultrasound electric machine of cannulated threaded transferring power is characterized in that: the ultrasound electric machine of described cannulated threaded transferring power comprises casing (6), rotating shaft (9), end cap (2), bearing (8), stator (1) and rotor (5); The hollow belt helicitic texture is adopted in described rotating shaft; Described stator (1) is connected by interference fit with end cap (2), described rotor (5) is connected by interference fit with rotating shaft (9), one side of rotor (5) is provided with stator (1), opposite side is provided with adjusts packing ring (7), bearing (8), itself and end cap (2) interference fit, end cap and casing connect and compose ultrasound electric machine by trip bolt between (6).
2, the ultrasound electric machine of a kind of cannulated threaded transferring power according to claim 1 is characterized in that: described stator (1) is by the stator metallic object and piezoelectric ceramic is bonding forms; Described rotor (5) is by rotor metallic object (13) and friction plate (14) bonding composition; Tooth top on the stator metallic object contacts with friction rotor sheet (14).
3, the ultrasound electric machine of a kind of cannulated threaded transferring power according to claim 2 is characterized in that: described rotor metallic object is a class helix elastic part.
4, according to the ultrasound electric machine of claim 1 or 3 described a kind of cannulated threaded transferring power, it is characterized in that: the extraction electrode of motor is special-shaped flexible printing film, and the public end of motor is film circle part and bonding the forming of stator metalwork supporting surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202224897U CN201341098Y (en) | 2008-11-17 | 2008-11-17 | Ultrasonic motor transmitting powder by hollow thread |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202224897U CN201341098Y (en) | 2008-11-17 | 2008-11-17 | Ultrasonic motor transmitting powder by hollow thread |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201341098Y true CN201341098Y (en) | 2009-11-04 |
Family
ID=41236642
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202224897U Expired - Fee Related CN201341098Y (en) | 2008-11-17 | 2008-11-17 | Ultrasonic motor transmitting powder by hollow thread |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201341098Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751906A (en) * | 2012-07-10 | 2012-10-24 | 南京航空航天大学 | Threaded hollow revolution type travelling wave ultrasound motor |
| CN106992713A (en) * | 2017-04-19 | 2017-07-28 | 西北农林科技大学 | A kind of piezoelectric actuating linear platform and its operating method |
-
2008
- 2008-11-17 CN CNU2008202224897U patent/CN201341098Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102751906A (en) * | 2012-07-10 | 2012-10-24 | 南京航空航天大学 | Threaded hollow revolution type travelling wave ultrasound motor |
| CN102751906B (en) * | 2012-07-10 | 2015-01-14 | 南京航空航天大学 | Threaded hollow revolution type travelling wave ultrasound motor |
| CN106992713A (en) * | 2017-04-19 | 2017-07-28 | 西北农林科技大学 | A kind of piezoelectric actuating linear platform and its operating method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091104 Termination date: 20141117 |
|
| EXPY | Termination of patent right or utility model |