CN1066940A - Piezoelectric-current changing rotary step motor - Google Patents
Piezoelectric-current changing rotary step motor Download PDFInfo
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- CN1066940A CN1066940A CN 92105232 CN92105232A CN1066940A CN 1066940 A CN1066940 A CN 1066940A CN 92105232 CN92105232 CN 92105232 CN 92105232 A CN92105232 A CN 92105232A CN 1066940 A CN1066940 A CN 1066940A
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- pole plate
- output shaft
- motor
- electrorheological fluid
- plate
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Abstract
The present invention relates to a kind of piezoelectric-current changing rotary step motor.This motor by pedestal, electrorheological fluid, twist mode PZT (piezoelectric transducer), reverse pole plate, output shaft pole plate, output shaft, clamping pole plate and cover plate and form.Electrorheological fluid is full of in the pedestal in the gap between each parts.Reverse the clutch that pole plate, output shaft pole plate and the electrorheological fluid between them constitute motor, battery lead plate on the cover plate, the output shaft pole plate, and the electrorheological fluid between them, constitute the clamper of motor, twisting vibration and torsional moment that the motor PZT (piezoelectric transducer) produces by the alternation with cooperating of clutch of electrorheological clamper, make motor output shaft move and obtain moment output in rotation step run mode.
Description
The present invention relates to a kind of piezoelectric-current changing rotary step motor, belong to the electromechanical equipment technical field.
Existing piezoelectricity rotary step motor is delivered as the 161st page of Japanese audio association lecture collection of thesis (putting down into March in the first year), and its structure as shown in Figure 1.Among the figure, the 101st, rotor, the 102nd, clutch, the 103rd, reverse the driving transducer, the 104th, matrix.This motor is owing to use the multi-layer ceramics actuator to control friction, has that energy consumption is big, efficient is low and problems such as vibration and wearing and tearing.
The objective of the invention is to design a kind of function admirable, simple in structure, utilize the novel rotary step motor of passing piezoelectric effect driving, electric rheological effect clutch of piezoelectrics, make it have characteristics such as high drive, high mechanical resolving power and high motor power transfer ratio, and do not have wearing and tearing, do not have to impact, power consumption is extremely low.
Content of the present invention is: piezoelectric-current changing rotary step motor, and by matrix, electrorheological fluid, twist mode PZT (piezoelectric transducer), reverse pole plate, output shaft pole plate, output shaft, clamping electrode plate and cover plate and form.Electrorheological fluid is full of in the pedestal in the space between each parts.The twist mode PZT (piezoelectric transducer) is fixed in the pedestal, and it is thereon bonding to reverse pole plate, and cover plate is on matrix, and output shaft stretches out from the cover plate center, between bearing and " O " RunddichtringO are arranged.Bearing can freely rotate output shaft, and " O " RunddichtringO between cover plate and the output shaft is sealed the electrorheological fluid in the matrix, and output shaft is used to export the moment output that the piezoelectricity torsional transducer produces.Output shaft pole plate and reverse between the pole plate clamping pole plate and be full of electrorheological fluid.Matrix output shaft pole plate is a zero potential, reverses pole plate and clamping pole plate and connects high potential respectively.Reverse pole plate, output shaft pole plate and electrorheological fluid constitute the clutch of stepper motor, and the clamping electrode plate on the cover plate, output shaft pole plate and electrorheological fluid constitute the clamper of motor.
Electrorheological fluid is a kind of high iknsulating liquid, and its inner suspension has a large amount of subparticles with high polarization characteristic.When electrorheological fluid places under the high electric field, the particle in the liquid can form particle chain or the particle fiber with shear resistance in moment, makes fluid present " weak solid " state, and shows the character of similar solid.One removes when electric field, makes and recovers the fluid original state in moment.Usually electrorheological fluid from liquid to consolidate/being affixed to the liquid response time period less than 1ms even only be tens μ s.
Because can be reversible when electrorheological fluid is subjected to electric field controls
Liquid state changes into solid-state, or from the solid-state liquid state that is converted into, utilize this effect, can constitute the clamper and the clutch of rotary step motor, obtain the moment output that motor piezoelectricity torsional transducer produces with this, clamper and the twisting vibration of clutch engagement piezoelectricity and the work that replaces, can make motor with the operation of rotation step-by-step system, the rotary speed of motor can be regulated by the voltage swing that change is applied on the piezoelectricity torsional transducer, also can regulate by the voltage square wave frequency that changes on it, accurate controlling and driving voltage magnitude can obtain high displacement resolution.
Description of drawings:
Fig. 1 is the prior art schematic diagram.
Fig. 2 is a structural representation of the present invention.
Below in conjunction with accompanying drawing, introduce content of the present invention in detail.
12 is matrixes among Fig. 2, the 13rd, and the twist mode PZT (piezoelectric transducer) is the motor power source, 13a reverses pole plate, and 15a is the output shaft pole plate, 13a, 15a and electrorheological fluid 14 constitute electrorheological clutch, are used for moment of torsion and angular displacement that torsional transducer 13 produces are passed to output shaft 15.15a simultaneously and the clamping electrode plate 18 that is fixed on the cover plate 16, and electrorheological fluid 14 constitutes clampers, is used for the angular displacement location of output shaft 15, the clutch alternation of it and motor can make motor move with stepped form.One insulating barrier 18a is arranged between clamping pole plate 18 and the cover plate 16, and the lead-in wire of clamping pole plate is drawn by the fairlead 16d of cover plate, and 16c and 17 is respectively cover plate and matrix, the sealing ring between cover plate and the output shaft.U
1, U
2Be respectively the voltage on clamper, the clutch, U
2Be the voltage on the PZT (piezoelectric transducer), 16a is a bearing, output shaft 15 is fixed on the cover plate 16, and output shaft 15 can be rotated freely; 16b is for connecting the screw of cover plate and matrix.
During operation, at first with a high voltage U
3Be added to 13a, on the electrorheological fluid between the 15a, it is solid-state that it is become, pole plate 13a as a result, and the clutch that 15a and electrorheological fluid constitute is lived (closing) by solid, and this moment 18,15a is a free state with the clamper of electrorheological fluid formation; Second step applied a voltage U to PZT (piezoelectric transducer)
2, this will make and reverse pole plate 13a forward and reverse an angular displacement △ θ, thereby drive the same angular displacement △ θ of output shaft 15 rotations; The 3rd step was removed U
3, and apply a voltage U to clamper
1, make output shaft pole plate 15a by nip.The 4th step, remove the voltage on the transducer, 13a gets back to the origin-location as a result, but output shaft 15 has turned over a minute angle △ θ.Repeat above step later on, motor will be rotated in the forward down with this step-by-step system always, changes above step, and motor is with antiport.
Claims (1)
1, a kind of piezoelectric-current changing rotary step motor, it is characterized in that described motor by matrix, electrorheological fluid, twist mode PZT (piezoelectric transducer), reverse pole plate, output shaft pole plate, output shaft, clamping pole plate and cover plate and form; Described electrorheological fluid is full of in the pedestal in the space between each parts; Described twist mode PZT (piezoelectric transducer) is fixed in the pedestal, reverses the output that pole plate is bonded in torsional transducer; Described cover plate is installed on the matrix by screw and sealing ring, and described output shaft is fixed on the cover board by the bearing at cover plate center, and one " O " RunddichtringO is arranged between output shaft and the cover plate center; Described output shaft pole plate and reverse between pole plate, the clamper pole plate and be full of electrorheological fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105232 CN1026200C (en) | 1992-07-02 | 1992-07-02 | Piezoelectric-current changing rotary step motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92105232 CN1026200C (en) | 1992-07-02 | 1992-07-02 | Piezoelectric-current changing rotary step motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1066940A true CN1066940A (en) | 1992-12-09 |
| CN1026200C CN1026200C (en) | 1994-10-12 |
Family
ID=4941244
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92105232 Expired - Fee Related CN1026200C (en) | 1992-07-02 | 1992-07-02 | Piezoelectric-current changing rotary step motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1026200C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343545C (en) * | 2003-10-10 | 2007-10-17 | 张国财 | Modularized ultrasonic clutch and brake apparatus |
| CN100367650C (en) * | 2004-09-29 | 2008-02-06 | 清华大学 | Micro supersonic motor device using magnetic pressure |
| CN100375380C (en) * | 2004-07-30 | 2008-03-12 | 清华大学 | Curve swing head supersonic mciro motor composed of multiple piezoelectric lamination pile transducer |
| CN101350576B (en) * | 2008-09-05 | 2011-06-29 | 清华大学 | Piezoelectric rotary driver |
| CN102182767A (en) * | 2011-05-27 | 2011-09-14 | 吉林大学 | Current-changed automatic clutch for automobile |
| CN104578901A (en) * | 2015-01-15 | 2015-04-29 | 合肥工业大学 | Walking piezoelectric rotary motor |
| CN116026715A (en) * | 2023-03-29 | 2023-04-28 | 湖南省特种设备检验检测研究院 | Multi-point hardness detection device for special equipment |
-
1992
- 1992-07-02 CN CN 92105232 patent/CN1026200C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100343545C (en) * | 2003-10-10 | 2007-10-17 | 张国财 | Modularized ultrasonic clutch and brake apparatus |
| CN100375380C (en) * | 2004-07-30 | 2008-03-12 | 清华大学 | Curve swing head supersonic mciro motor composed of multiple piezoelectric lamination pile transducer |
| CN100367650C (en) * | 2004-09-29 | 2008-02-06 | 清华大学 | Micro supersonic motor device using magnetic pressure |
| CN101350576B (en) * | 2008-09-05 | 2011-06-29 | 清华大学 | Piezoelectric rotary driver |
| CN102182767A (en) * | 2011-05-27 | 2011-09-14 | 吉林大学 | Current-changed automatic clutch for automobile |
| CN102182767B (en) * | 2011-05-27 | 2012-12-05 | 吉林大学 | Current-changed automatic clutch for automobile |
| CN104578901A (en) * | 2015-01-15 | 2015-04-29 | 合肥工业大学 | Walking piezoelectric rotary motor |
| CN116026715A (en) * | 2023-03-29 | 2023-04-28 | 湖南省特种设备检验检测研究院 | Multi-point hardness detection device for special equipment |
| CN116026715B (en) * | 2023-03-29 | 2023-08-15 | 湖南省特种设备检验检测研究院 | Multi-point hardness detection device for special equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1026200C (en) | 1994-10-12 |
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| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |