CN205377707U - Radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor - Google Patents
Radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor Download PDFInfo
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- CN205377707U CN205377707U CN201620030700.XU CN201620030700U CN205377707U CN 205377707 U CN205377707 U CN 205377707U CN 201620030700 U CN201620030700 U CN 201620030700U CN 205377707 U CN205377707 U CN 205377707U
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Abstract
The utility model discloses a radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor to solve the vice supersound motor of current screw thread because single -point in general use contact driving method, lead to that motion stability is poor, the less scheduling problem of power output. The utility model discloses a fixed outrigger, fastening screw, piezoceramics component, screw spindle, change width of cloth pole oscillator and the structure elastomer of twining, fixed outrigger are equipped with connecting hole and fixed mounting hole, and the piezoceramics component adopts that (i) (i) 31 excitation modes, the screw spindle is equipped with the connection external screw thread to d, becomes a width of cloth pole oscillator and is equipped with flat link, interior threaded holes and outerplanar, twines to construct the elastomer and be equipped with connecting grooves and connection internal thread. Applying ultrasonic frequency drive signal in piezoceramics component, arousing the structure elastomer of twining to produce two and being listed as stationary wave vibration mode, the coupling produces the travelling wave drive screw spindle that contains a plurality of crests and trough. The utility model discloses have advantages such as motion stationary nature is good, the power output is big, have extensive application prospect at ultra -precision driving with the transmission field.
Description
Technical field
This utility model relates to a kind of many element combination radially excitation dish structure thread ultrasonic motor, belongs to the technical field of precision actuation and transmission.
Background technology
Ultrasound electric machine is the supersonic vibration that a kind of inverse piezoelectric effect utilizing piezoelectric element excites stator elastomeric to produce high frequency a little, is coupled the small and special electric machine realizing mechanical energy output by the friction between stator with mover.Output form according to mover is different, and ultrasound electric machine can be divided into several output types such as straight line, rotation and multiple degrees of freedom.Thread ultrasonic motor is as the one in current many output type ultrasound electric machines, and between its stator and mover, main employing screw thread pair carries out transmission, is realized the output of rotational alignment two-freedom motion by screw-driven pair.Compared with other class ultrasound electric machine, screw thread pair ultrasound electric machine has the advantage such as simple in construction, positioning precision height, can be widely applied to the technical field of precision actuation and transmission.
Chinese invention patent " ultrasonic lead screw motor ", Authorization Notice No. is CN1879232B, authorized announcement date is on 04 07th, 2010, disclose a kind of device for driving the thread spindle assembly comprising the thread spindle with rotating shaft and the screw nut being mated, screw nut carrying out supersonic vibration and causes that thread spindle axially rotates and mobile simultaneously, thread spindle is connected to the load that axial force is applied to thread spindle；nullChinese invention patent " screw-type linear ultrasonic motor "，Application publication number is CN103036472A，Shen Qing Publication day is on 04 10th, 2013，Disclosed a kind of screw-type linear ultrasonic motor includes stator and rotor，Stator includes stator base and is pasted onto longitudinal vibration piezoelectric chip thereon and torsional vibration piezoelectric chip，Stator base is，Hollow circular cylinder cuts out uniform four plane，For pasting longitudinal vibration piezoelectric chip and torsional vibration piezoelectric chip，Longitudinal vibration piezoelectric chip and torsional vibration piezoelectric chip are all symmetrically installed，Use in pairs，Rotor is through stator，And matched by the female thread of the external screw thread of rotor with two screw drive ends on stator，Longitudinal vibration piezoelectric chip and torsional vibration piezoelectric chip motivate the complex vibration of longitudinal vibration and torsional oscillation on stator，Making the particle motion trace on stator screw drive end is ellipse，Stator is rotated by friction-driven rotor，And be rectilinear motion by convert rotational motion.
The driving ultrasound electric machine of screw thread pair of above-mentioned several implementation, though it can realize rotational motion to linear motion output under piezoelectric element supersonic vibration encourages, but due to single-contact type of drive commonly used between its stator and mover, cause that it exists the technical problems such as kinetic stability difference, power output are less, seriously constrain application further and the development of the driving ultrasound electric machine of screw thread pair.
Summary of the invention
For solving commonly used single-contact type of drive between the stator of current screw thread pair ultrasound electric machine and mover, cause that it exists the technical problems such as kinetic stability difference, power output are less, the utility model discloses a kind of many element combination radially excitation dish structure thread ultrasonic motor.
This utility model be the technical scheme is that a kind of many element combination radially excitation dish structure thread ultrasonic motor, is made up of fixing outrigger, trip bolt, piezo ceramic element, thread spindle, horn oscillator and dish structural elasticity body；Described fixing outrigger is provided with connecting hole and fixed installation hole, and the connecting hole of fixing outrigger is fastenedly connected by trip bolt and horn oscillator, and fixing outrigger realizes the fixed installation of motor by fixedly mounting hole；Described piezo ceramic element isd 31The rectangular piezoelectric ceramic sheet of exciting pattern, and all through-thickness polarization；Described thread spindle is provided with connection external screw thread；Described horn oscillator is provided with flat link, internal thread hole and outerplanar, wherein the internal thread hole of horn oscillator is connected with trip bolt and realizes being fastenedly connected of horn oscillator and fixing outrigger, and the outerplanar of horn oscillator is fixed with piezo ceramic element and is connected；Described dish structural elasticity body is hollow cylindrical dish structure, it is provided with connecting groove and connects female thread, in its mid-game structural elasticity body, the connecting groove of spaced layout becomes 120 degree of angles, and adjacently positioned connecting groove becomes 90 degree or 30 degree of angles in dish structural elasticity body, the connecting groove of dish structural elasticity body is fixing with the flat link of horn oscillator to be connected, and the connection external screw thread connecting female thread and thread spindle of dish structural elasticity body screws connection；The described spaced piezo ceramic element being arranged in horn oscillator on outerplanar constitutes exciting group A, and all the other spaced piezo ceramic elements 3 being arranged in horn oscillator on outerplanar constitute exciting group B；The connection female thread connecting external screw thread and dish structural elasticity body of described thread spindle can be trapezoidal thread, triangle thread, rectangular thread, saw-tooth thread, pipe screw thread or nonstandard screw thread.
The beneficial effects of the utility model: this utility model a kind of many element combination radially excitation dish structure thread ultrasonic motor, by the ac-excited signal of telecommunication in applying supersonic range in piezo ceramic element, dish structural elasticity body is excited to produce two row multi-wavelength stationary wave vibration mode, the superposition utilizing mode of oscillation couples, between dish structural elasticity body and thread spindle, produce the driving traveling wave comprising multiple crest and trough, drive thread spindle to realize movement output.This utility model has the technical advantages such as good, the High power output of robust motion, is with a wide range of applications in precision actuation and drive technology field.
Accompanying drawing explanation
Fig. 1 show the top view of a kind of many element combination radially excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 2 show the front view of a kind of many element combination radially excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 3 show the sectional view of a kind of many element combination radially fixing outrigger of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 4 show the top view of a kind of many element combination radially fixing outrigger of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 5 show the structural representation of a kind of many element combination radially thread spindle of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 6 show the partial sectional view of a kind of many element combination radially horn oscillator of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 7 show the side view of a kind of many element combination radially horn oscillator of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 8 show the sectional view of a kind of many element combination radially dish structural elasticity body of excitation dish structure thread ultrasonic motor that the utility model proposes；
Fig. 9 show the top view of a kind of many element combination radially dish structural elasticity body of excitation dish structure thread ultrasonic motor that the utility model proposes.
Detailed description of the invention
Detailed description of the invention one: present embodiment is described in conjunction with Fig. 1 ~ Fig. 9.Present embodiment provides the specific embodiments of a kind of many element combination radially excitation dish structure thread ultrasonic motor.The many element combination of described one radially excitation dish structure thread ultrasonic motor is formed by fixing outrigger 1, trip bolt 2, piezo ceramic element 3, thread spindle 4, horn oscillator 5 and dish structural elasticity body 6.
Described fixing outrigger 1 is provided with connecting hole 1-1 and fixed installation hole 1-2, and the connecting hole 1-1 of fixing outrigger 1 is fastenedly connected by trip bolt 2 and horn oscillator 5, and fixing outrigger 1 realizes the fixed installation of motor by fixedly mounting hole 1-2；Described piezo ceramic element 3 isd 31The rectangular piezoelectric ceramic sheet of exciting pattern, and all through-thickness polarization；Described thread spindle 4 is provided with connection external screw thread 4-1, and stainless steel material is selected in the employing of thread spindle 4, and the connection external screw thread 4-1 surface of thread spindle 4 needs milled processed；Described horn oscillator 5 is provided with flat link 5-1, internal thread hole 5-2 and outerplanar 5-3, wherein the internal thread hole 5-2 of horn oscillator 5 is connected with trip bolt 2 and realizes being fastenedly connected of horn oscillator 5 and fixing outrigger 1, and the outerplanar 5-3 of horn oscillator 5 and piezo ceramic element 3 are achieved a fixed connection by epoxide-resin glue；Described dish structural elasticity body 6 is hollow cylindrical dish structure, its material selection brass material, dish structural elasticity body 6 is provided with connecting groove 6-1 and connects female thread 6-2, in its mid-game structural elasticity body 6, the connecting groove 6-1 of spaced layout becomes 120 degree of angles, and adjacently positioned connecting groove 6-1 becomes 90 degree or 30 degree of angles in dish structural elasticity body 6, the flat link 5-1 of the connecting groove 6-1 of dish structural elasticity body 6 and horn oscillator 5 is achieved a fixed connection by epoxide-resin glue, the connection female thread 6-2 surface of dish structural elasticity body 6 needs milled processed, the connection external screw thread 4-1 connecting female thread 6-2 and thread spindle 4 of dish structural elasticity body 6 screws connection.The described spaced piezo ceramic element 3 being arranged in horn oscillator 5 on outerplanar 5-3 constitutes exciting group A, and all the other spaced piezo ceramic elements 3 being arranged in horn oscillator 5 on outerplanar 5-3 constitute exciting group B.The connection female thread 6-2 connecting external screw thread 4-1 and dish structural elasticity body 6 of described thread spindle 4 can be trapezoidal thread, triangle thread, rectangular thread, saw-tooth thread, pipe screw thread or nonstandard screw thread.
Detailed description of the invention two: present embodiments provide for the motivational techniques specific embodiments of a kind of many element combination radially excitation dish structure thread ultrasonic motor.Shown in the motivational techniques of described a kind of many element combination radially excitation dish structure thread ultrasonic motor are specific as follows.
Described exciting group A passes to the sine wave exciting signal of (being generally higher than 16kHz) in a certain supersonic range, excites dish structural elasticity body 6 to produce a certain stationary wave vibration mode containing multiple crests and trough；Exciting group B passes to the cosine wave pumping signal of (being generally higher than 16kHz) in a certain supersonic range, excites dish structural elasticity body 6 to produce another stationary wave vibration mode containing multiple crest and trough；When the phase contrast that exciting group A and exciting group B is applied the excitation signal of telecommunication is 90 degree, two row stationary wave vibration mode are coupled by superposition, between dish structural elasticity body 6 and thread spindle 4, form the positive movement traveling wave containing multiple crests and trough, drive thread spindle 4 to realize positive movement output；When the phase contrast that exciting group A and exciting group B is applied the excitation signal of telecommunication is 270 degree, two row stationary wave vibration mode are coupled by superposition, between dish structural elasticity body 6 and thread spindle 4, form the adverse movement traveling wave containing multiple crests and trough, drive thread spindle 4 to realize adverse movement output.
Claims (3)
1. element combination more than is an excitation dish structure thread ultrasonic motor radially, is made up of fixing outrigger (1), trip bolt (2), piezo ceramic element (3), thread spindle (4), horn oscillator (5) and dish structural elasticity body (6)；It is characterized in that: described fixing outrigger (1) is provided with connecting hole (1-1) and fixed installation hole (1-2), the connecting hole (1-1) of fixing outrigger (1) is fastenedly connected by trip bolt (2) and horn oscillator (5), and fixing outrigger (1) realizes the fixed installation of motor by fixedly mounting hole (1-2)；Described piezo ceramic element (3) isd 31The rectangular piezoelectric ceramic sheet of exciting pattern, and all through-thickness polarization；Described thread spindle (4) is provided with connection external screw thread (4-1)；Described horn oscillator (5) is provided with flat link (5-1), internal thread hole (5-2) and outerplanar (5-3), wherein the internal thread hole (5-2) of horn oscillator (5) is connected with trip bolt (2) and realizes being fastenedly connected of horn oscillator (5) and fixing outrigger (1), and the outerplanar (5-3) of horn oscillator (5) is fixed with piezo ceramic element (3) and is connected；Described dish structural elasticity body (6) is hollow cylindrical dish structure, it is provided with connecting groove (6-1) and connects female thread (6-2), in its mid-game structural elasticity body (6), the connecting groove (6-1) of spaced layout becomes 120 degree of angles, and adjacently positioned connecting groove (6-1) becomes 90 degree or 30 degree of angles in dish structural elasticity body (6), the connecting groove (6-1) of dish structural elasticity body (6) is fixing with the flat link (5-1) of horn oscillator (5) to be connected, the connection female thread (6-2) of dish structural elasticity body (6) and the connection external screw thread (4-1) of thread spindle (4) screw connection.
2. the many element combination of one according to claim 1 radially excitation dish structure thread ultrasonic motor, it is characterized in that: the described spaced piezo ceramic element (3) being arranged in horn oscillator (5) on outerplanar (5-3) constitutes exciting group A, and all the other spaced piezo ceramic elements 3 being arranged in horn oscillator (5) on outerplanar (5-3) constitute exciting group B.
3. the many element combination of one according to claim 1 radially excitation dish structure thread ultrasonic motor, it is characterised in that: the connection external screw thread (4-1) of described thread spindle (4) and the connection female thread (6-2) of dish structural elasticity body (6) they can be trapezoidal thread, triangle thread, rectangular thread, saw-tooth thread, pipe screw thread or nonstandard screw thread.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030700.XU CN205377707U (en) | 2016-01-14 | 2016-01-14 | Radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620030700.XU CN205377707U (en) | 2016-01-14 | 2016-01-14 | Radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor |
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| CN205377707U true CN205377707U (en) | 2016-07-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201620030700.XU Expired - Fee Related CN205377707U (en) | 2016-01-14 | 2016-01-14 | Radial excitation of many oscillators combination is twined and is constructed screw thread supersound motor |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517022A (en) * | 2017-08-04 | 2017-12-26 | 上海交通大学 | A kind of ultrasound electric machine with two degrees of freedom based on three PZT (piezoelectric transducer) combined-stators |
-
2016
- 2016-01-14 CN CN201620030700.XU patent/CN205377707U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107517022A (en) * | 2017-08-04 | 2017-12-26 | 上海交通大学 | A kind of ultrasound electric machine with two degrees of freedom based on three PZT (piezoelectric transducer) combined-stators |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160706 Termination date: 20170114 |