CN104238338B - Oscillating mode traveling wave gear drive - Google Patents
Oscillating mode traveling wave gear drive Download PDFInfo
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- CN104238338B CN104238338B CN201410368999.5A CN201410368999A CN104238338B CN 104238338 B CN104238338 B CN 104238338B CN 201410368999 A CN201410368999 A CN 201410368999A CN 104238338 B CN104238338 B CN 104238338B
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- input
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- elastomer
- output end
- traveling wave
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Abstract
The invention discloses a kind of oscillating mode traveling wave gear drive, belong to mechanical transmission fields, it is made up of airframe systems, input system and output system three parts, and the input system and output system are arranged in airframe systems；The input system includes elastomer input and some piezoelectric ceramic pieces being attached on the elastomer input；The output system includes output end and the output shaft being arranged in the output end；There is tooth form the elastomer input end face with output end end face, and motion and the transmission of power are realized by the elastomer input contrate tooth profile intermeshing under output end contrate tooth profile and constant wave vibration effect.Ultrasonic travelling wave is incorporated into engaged transmission field by the present invention, a kind of new kind of drive is realized using ultrasonic travelling wave vibration principle and conjugation envelope principle, therefore can solve the problems, such as that conventional gears transmission transmission accuracy caused by it gap, friction and wear be present is not high.
Description
Technical field
The invention belongs to mechanical transmission fields, are related to a kind of oscillating mode traveling wave gear drive, be particularly suitable for use in clock and watch
Transmission etc..
Background technology
Nineteen forty-six Massachusetts Institute Technology's insulation research department is found, applies DC high-voltage on barium titanate ferroelectric ceramicses
, its spontaneous polarization is remained to keep certain residual polarization along direction of an electric field preferred orientation after removing electric field, is made it that there is pressure
Electrical effect, from this piezoelectric ceramics that has been born.Nineteen forty-seven, U.S. Roberts is in BaTiO3On ceramics, apply high pressure and carry out at polarization
Reason, obtains the voltage endurance of piezoelectric ceramics, then, Japan, which actively develops, utilizes BaTiO3Piezoelectric ceramics making ultrasonic transducer,
The application study of the various piezoelectric devices such as high-frequency transducer, pressure sensor, wave filter, resonator.Nineteen fifty-five, the U.S.
B.Jaffe et al., which is found that, compares BaTiO3The more superior PZT piezoelectric ceramics of piezoelectricity, promote the application study of piezoelectric device again big
The earth has pushed ahead major step.The travelling wave drive principle that people initially understand be in the 1940s, by Williarns and
What Brown was proposed first, but due to the shortage of material, the backwardness of technology at that time, initial ultrasonic travelling wave driving model is always
It is not carried out.Until 1961, Bulova Watch Ltd. companies drove watch gear, work using Vibration of Elastic Bodies first
Working frequency is 360Hz, this clock and watch punctual timing, and error monthly only has one minute, has broken the record in that epoch, has caused
Cause a sensation.
On the other hand, watch gear requires that gearratio is big, the torque ratio rate of change is small, pinion rotation is flexible, energy transmission effect
Rate is high, insensitive to foozle.Tooth form widely used at present is arc toothed, and seldom number of teeth can be processed using the tooth form
（Such as 6 teeth）And without Undercutting Phenomenon, this feature meet transmission system in clockwork to be realized in smaller space it is larger
Gearratio.But the variation of its torque is bigger, reach 20% or so, and the gear for manufacturing the different numbers of teeth is needed with different hobboing cutters
Processing, this causes tool specification to greatly increase, and processing cost is higher.In recent years, some new tooth forms such as circular arc-straight line tooth form,
Elliptic trochoid tooth form, modified tooth shape etc. are proposed in succession, but are not all widely applied in clock and watch tooth form.
In view of above-mentioned state of development, the present inventor has found by further investigation, if ultrasonic travelling wave can be incorporated into engagement
Transmission field, you can solve the problems, such as that conventional gears transmission transmission accuracy caused by it gap, friction and wear be present is not high, be
Improve the flexibility of watch gear transmission and stability provides theory and technology and supported, this case produces therefrom.
The content of the invention
The technical problems to be solved by the invention are to overcome existing watch gear transmission because gap, friction and mill be present
The shortcomings of clock and watch transmission accuracy is not high caused by damage, and a kind of oscillating mode traveling wave gear drive is provided.
In order to solve the above technical problems, the technical solution of the present invention is：
A kind of oscillating mode traveling wave gear drive, it is made up of airframe systems, input system and output system three parts,
The input system and output system are arranged in airframe systems；The input system includes elastomer input and is attached to the elastomer
Some piezoelectric ceramic pieces on input；The output system includes output end and the output shaft being arranged in the output end；The bullet
Property body input end face and the output end end face be equipped with tooth form, the transmission device passes through output end contrate tooth profile and constant wave vibration
Motion and the transmission of power are realized in elastomer input contrate tooth profile intermeshing under effect.
Preferably, described elastomer input contrate tooth profile is straight line tooth form, and the surface particle in straight line tooth form is expert at
Ripple effect is lower to produce elliptical vibration, and described output end contrate tooth profile is tried to achieve according to constant wave vibration principle and conjugation envelope principle
The tooth form with the elastomer input straight line tooth form phase conjugate under elliptical vibration.
Preferably, described airframe systems are made up of input end cap, body and output end end cap, the body and input
End cap is connected by bolts, and the body is connected by bolts with output end end cap.
Preferably, described elastomer input is coupled by bolt with input end cap.
Preferably, described output shaft is arranged on internal body by small bearing, big bearing and axle sleeve.
Preferably, the output end is structure as a whole with output shaft, or is split and is coupled to each other structure.
After such scheme, transmission mechanism of the present invention at work, in the adjacent two panels piezoelectric ceramic piece of input
The upper phase difference that applies respectively is pi/2 and frequency is identical, amplitude is equal sinusoidal voltage, using the inverse piezoelectric effect of piezoelectric ceramics,
Inspire that two amplitudes are equal, differ pi/2 over time and space on the complex that piezoelectric ceramics and metallic matrix form
Standing wave, the two standing waves are superimposed on complex and form traveling wave.Traveling wave causes elastomer input end surfaces particle to do oval rail
Mark is moved, and in wave crest portions, elastomer input contrate tooth profile is driven with output end contrate tooth profile by flank profil engaged transmission
Output mechanism rotates, and the rotation direction of output shaft is identical with the traveling wave direction formed.Because the present invention introduces ultrasonic travelling wave
To engaged transmission field, a kind of new kind of drive is realized using ultrasonic travelling wave vibration principle and conjugation envelope principle, because
This can solve the problems, such as that conventional gears transmission transmission accuracy caused by it gap, friction and wear be present is not high, be applied to clock
During table transmission field, flexibility and the stability of watch gear transmission can be improved.
Brief description of the drawings
Fig. 1 is a kind of half sectional view of oscillating mode traveling wave gear drive of the present invention；
Fig. 2 is a kind of engaging portion partial enlarged drawing of oscillating mode traveling wave gear drive of the present invention；
Fig. 3 is a kind of 3-D view of oscillating mode traveling wave gear drive of the present invention.
Embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings.
Disclosed is a kind of oscillating mode traveling wave gear drive, is of the invention as shown in Figure 1 to Figure 3
Preferred embodiment.Described oscillating mode traveling wave gear drive is mainly by airframe systems, input system and output system three
It is grouped into, the input system and output system are arranged in airframe systems.Wherein：
Described airframe systems can be made up of input end cap 11, body 7 and output end end cap 1, the body 7 and input
End end cap 11 can be coupled by bolt 6, and the body 7 can also be coupled with output end end cap 1 by bolt 2.
Described input system includes elastomer input 9 and some piezoelectric ceramics being attached on the elastomer input 9
Piece 10, the elastomer input 9 can be coupled by bolt 12 with input end cap 11.
Described output system includes output end 8 and the output shaft 81 being arranged in the output end, more specifically, described defeated
Going out end 8 can be structure as a whole with output shaft 81（In figure shown in embodiment）, or split and the structure being coupled to each other.Should
Output shaft 81 can be arranged on inside body 7 and rotatable by small bearing 3, big bearing 5 and axle sleeve 4.
The described end face of elastomer input 9 and the end face of output end 8 are equipped with tooth form, and the transmission device passes through output end
Contrate tooth profile realizes motion and the transmission of power with the elastomer input contrate tooth profile intermeshing under constant wave vibration effect.Enter
One step, the tooth form of the elastomer input 9 can be straight line tooth form, and the contrate tooth profile of output end 8 is former according to constant wave vibration
The tooth form with the straight line tooth form phase conjugate of elastomer input 9 in vibration processes that reason is tried to achieve with conjugation envelope principle.
The present invention operation principle be：Transmission is initial, applies phase difference respectively on adjacent two panels piezoelectric ceramic piece 10
For pi/2 and frequency is identical, amplitude is equal sinusoidal voltage, using the inverse piezoelectric effect of piezoelectric ceramics, in the He of piezoelectric ceramic piece 10
Metallic matrix（That is elastomer input 9）It is equal, homogeneous over time and space that two amplitudes are inspired on the complex of composition
The standing wave of poor pi/2, the two standing waves are superimposed on complex and form traveling wave（As shown in Figure 2）.Traveling wave causes elastomer input
9 surface particles do elliptical orbit motion, and in wave crest portions, contrate tooth profile and the contrate tooth profile of output end 8 of elastomer input 9 lead to
The engaged transmission of flank profil is crossed to drive output system to rotate, the rotation direction of output end 8 is identical with the traveling wave direction formed.This
The gear drive that kind is realized using surface particle vibration, it is desirable to which input meets that flank profil engages base with output end upper surface tooth form
This law, the present invention first give the contrate tooth profile of elastomer input 9, tried to achieve by calculating vibrated according to conjugation envelope principle
In journey therewith intermeshing conjugate profiles as the contrate tooth profile of output end 8.Using finite element method, shaken what is be calculated
On the basis of type, amplitude, the elliptical orbit of surface particle move the engaged transmission equation of motion for the face gear to be formed, vibration is established
The mathematical modeling of type traveling wave gear drive power output, change the physical dimension of input mechanism, choose the different vibration shape, swash
Voltage and frequency are encouraged, obtains the vibration shape, amplitude to the Influencing Mechanism of the power output of traveling wave mechanism, simulation study difference contrate tooth profile
To the Influencing Mechanism of traveling wave gear drive power output.
The above described is only a preferred embodiment of the present invention, be not intended to limit the scope of the present invention,
Therefore the change or modification that claim under this invention and specification are done in every case, it should all belong to the scope that patent of the present invention covers
Within.
Claims (5)
- A kind of 1. oscillating mode traveling wave gear drive, it is characterised in that：It is by airframe systems, input system and output system three Part is formed, and the input system and output system are arranged in airframe systems；The input system includes elastomer input（9）With Some piezoelectric ceramic pieces being attached on the elastomer input（10）；The output system includes output end（8）And to be arranged on this defeated The output shaft gone out on end（81）；The elastomer input end face is equipped with tooth form with the output end end face, and the transmission device passes through Output end contrate tooth profile and constant wave vibration effect lower elastomer input contrate tooth profile intermeshing, which is realized, moves and power Transmit, at work, it is pi/2 and frequency phase to apply phase difference respectively on adjacent two panels piezoelectric ceramic piece to the transmission device Sinusoidal voltage same, amplitude is equal；Described elastomer input contrate tooth profile is straight line tooth form, the surface matter in straight line tooth form Point produces elliptical vibration under traveling wave effect, and described output end contrate tooth profile is former according to constant wave vibration principle and conjugation envelope The tooth form with the elastomer input straight line tooth form phase conjugate under elliptical vibration tried to achieve is managed, the output end is one with output shaft Body structure.
- 2. oscillating mode traveling wave gear drive according to claim 1, it is characterised in that：Described airframe systems are by defeated Enter end cap（11）, body（7）With output end end cap（1）Composition, the body（7）With input end cap（11）Pass through bolt（6） Connection, the body（7）With output end end cap（1）Pass through bolt（2）Connection.
- 3. oscillating mode traveling wave gear drive according to claim 2, it is characterised in that：Described elastomer input （9）Pass through bolt（12）With input end cap（11）Connection.
- 4. oscillating mode traveling wave gear drive according to claim 2, it is characterised in that：Described output shaft（81）It is logical Too small bearing（3）, big bearing（5）And axle sleeve（4）Installed in body（7）It is internal.
- 5. the oscillating mode traveling wave gear drive according to claim 1, it is characterised in that：The elastomer input end The surrounding in face and the surrounding of the output end end face are equipped with a circle tooth form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368999.5A CN104238338B (en) | 2014-07-31 | 2014-07-31 | Oscillating mode traveling wave gear drive |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410368999.5A CN104238338B (en) | 2014-07-31 | 2014-07-31 | Oscillating mode traveling wave gear drive |
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| CN104238338A CN104238338A (en) | 2014-12-24 |
| CN104238338B true CN104238338B (en) | 2017-12-12 |
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| CN201410368999.5A Expired - Fee Related CN104238338B (en) | 2014-07-31 | 2014-07-31 | Oscillating mode traveling wave gear drive |
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Citations (8)
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| CN1083983A (en) * | 1992-07-20 | 1994-03-16 | 阿苏拉布股份有限公司 | Piezo-electric motor |
| DE69026130D1 (en) * | 1989-04-28 | 1996-05-02 | Seiko Instr Inc | Ultrasonic motor with standing wave |
| EP1283592A1 (en) * | 2001-08-09 | 2003-02-12 | Asulab S.A. | Piezoelectric motor |
| CN101257265A (en) * | 2007-03-01 | 2008-09-03 | 精工爱普生株式会社 | Piezoelectric drive device and electronic device |
| CN101727060A (en) * | 2008-10-16 | 2010-06-09 | 伊塔瑞士钟表制造股份有限公司 | Locking mechanism for timepiece drive module |
| CN201705879U (en) * | 2009-10-16 | 2011-01-12 | 温俊彧 | Device for converting circular movement into noncircular closed line movement, chronometer and tool |
| CN201742324U (en) * | 2010-06-08 | 2011-02-09 | 江苏春生超声电机有限公司 | Rotary travelling wave ultrasonic motor |
| CN203982084U (en) * | 2014-07-31 | 2014-12-03 | 厦门理工学院 | A kind of row ripple gear drive |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1665119A (en) * | 2005-03-15 | 2005-09-07 | 辽宁工学院 | Annular standing wave linear ultrasonic motor oscillator |
| CN1909355B (en) * | 2006-08-15 | 2010-05-12 | 华南农业大学 | Rotary type ultraphonic motor |
| CN103856101B (en) * | 2014-03-26 | 2017-01-11 | 长春工业大学 | Patch disk-structure ultrasonic meshing motor |
-
2014
- 2014-07-31 CN CN201410368999.5A patent/CN104238338B/en not_active Expired - Fee Related
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE69026130D1 (en) * | 1989-04-28 | 1996-05-02 | Seiko Instr Inc | Ultrasonic motor with standing wave |
| CN1083983A (en) * | 1992-07-20 | 1994-03-16 | 阿苏拉布股份有限公司 | Piezo-electric motor |
| EP1283592A1 (en) * | 2001-08-09 | 2003-02-12 | Asulab S.A. | Piezoelectric motor |
| CN101257265A (en) * | 2007-03-01 | 2008-09-03 | 精工爱普生株式会社 | Piezoelectric drive device and electronic device |
| CN101727060A (en) * | 2008-10-16 | 2010-06-09 | 伊塔瑞士钟表制造股份有限公司 | Locking mechanism for timepiece drive module |
| CN201705879U (en) * | 2009-10-16 | 2011-01-12 | 温俊彧 | Device for converting circular movement into noncircular closed line movement, chronometer and tool |
| CN201742324U (en) * | 2010-06-08 | 2011-02-09 | 江苏春生超声电机有限公司 | Rotary travelling wave ultrasonic motor |
| CN203982084U (en) * | 2014-07-31 | 2014-12-03 | 厦门理工学院 | A kind of row ripple gear drive |
Non-Patent Citations (1)
| Title |
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| 线面共轭啮合原理及齿面构建方法;陈兵奎等;《机械工程学报》;20121031;第48卷(第19期);第17-22页 * |
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| CN104238338A (en) | 2014-12-24 |
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Granted publication date: 20171212 Termination date: 20200731 |