CN103490665B - A kind of inertia impaction type low-frequency piezoelectric motor - Google Patents
A kind of inertia impaction type low-frequency piezoelectric motor Download PDFInfo
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- CN103490665B CN103490665B CN201310483909.2A CN201310483909A CN103490665B CN 103490665 B CN103490665 B CN 103490665B CN 201310483909 A CN201310483909 A CN 201310483909A CN 103490665 B CN103490665 B CN 103490665B
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- stator
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- rotating shaft
- ladder rotating
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Abstract
The invention discloses a kind of inertia impaction type low-frequency piezoelectric motor, by ladder rotating shaft, rotor, stator, piezoelectric vibrator, Z-type sheet and base composition, its rotor and stator sleeve are located in ladder rotating shaft, rotor is located at above stator, be connected by bearing between rotor with ladder rotating shaft, stator and ladder rotating shaft interference fit, the lower end being fixed on stator that piezoelectric vibrator tilts, the upper end of Z-type sheet is fixed on stator, the lower end of Z-type sheet is fixed on base, beneficial effect of the present invention: rational in infrastructure, simple and practical, stator elevating movement effect improves, motor vibrations efficiency improves.
Description
Technical field
Patent of the present invention relates to a kind of low-frequency piezoelectric motor, particularly a kind of inertia impaction type low-frequency piezoelectric motor.
Background technology
At present, vibration can form driving force phenomenon by suitable cooperating measure by people's understanding and successful Application for many years, the operating frequency of ultrasonic motor, at more than 20kHz, realizes the driving to rotor with the absolute oval coupled motions formed usually.As long as be thus oval coupled motions (or relative elliptical coupled motions) by suitable structure by vibration synthesize in theory, low-frequency vibration can form driving force equally, also just can be used for constructing motor as ultrasonic vibration, but, existing low frequency motor is unreasonable due to structural design, in use vibration efficiency low for ubiquity, the problem of elevating movement poor effect.
Summary of the invention
The object of the invention is in order to solve existing low frequency motor in use ubiquity vibration efficiency low, the problem of elevating movement poor effect and a kind of inertia impaction type low-frequency piezoelectric motor provided.
Inertia impaction type low-frequency piezoelectric motor of the present invention is made up of ladder rotating shaft, rotor, stator, piezoelectric vibrator, Z-type sheet and base, its rotor and stator sleeve are located in ladder rotating shaft, rotor is located at above stator, be connected by bearing between rotor with ladder rotating shaft, stator and ladder rotating shaft interference fit, the lower end being fixed on stator that piezoelectric vibrator tilts, the upper end of Z-type sheet is fixed on stator, and the lower end of Z-type sheet is fixed on base.
Ladder rotating shaft upper end is provided with helicitic texture near the position of rotor, and screw thread position is bolted with the nut matched, and nut screws on screw thread, can increase the contact force between rolling bearing and rotor, realizes frictional force and regulates.
Piezoelectric vibrator is made up of piezoelectric patches, beryllium-bronze sheet and mass, and wherein piezoelectric patches is pasted onto on beryllium-bronze sheet, and mass is connected in beryllium-bronze sheet outer end, and piezoelectric vibrator is provided with several.
Z-type sheet is provided with several.
Operation principle of the present invention is as described below:
Piezoelectric patches after the alternating current of input certain frequency on piezoelectric vibrator will do cyclic bending motion, and drive the mass of beryllium-bronze sheet tail end to swing, because the inertia of mass is large, stator will be driven to rotate.Due to the restriction of Z-type sheet, stator will do elevating movement while rotation, at ascent stage, owing to compressing with rotor, stator rotor driven can rotate forward, in the decline stage, because stators and rotators is separated, stator dallies, and makes rotor produce a micro-displacement, thus complete the motion of one-period, so repeatedly drive rotor turns.
Beneficial effect of the present invention:
Rational in infrastructure, simple and practical, stator elevating movement effect improves, and motor vibrations efficiency improves.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Fig. 2 is sectional structure schematic diagram of the present invention.
1, ladder rotating shaft 2, rotor 3, stator 4, Z-type sheet 5, base
6, bearing 7, nut 8, piezoelectric patches 9, beryllium-bronze sheet 10, mass.
Embodiment
Refer to shown in Fig. 1, Fig. 2:
Inertia impaction type low-frequency piezoelectric motor of the present invention is made up of ladder rotating shaft 1, rotor 2, stator 3, piezoelectric vibrator, Z-type sheet 4 and base 5, its rotor 2 and stator 3 are set in ladder rotating shaft 1, rotor 2 is located at above stator 3, be connected by bearing 6 between rotor 2 with ladder rotating shaft 1, stator 3 and ladder rotating shaft 1 interference fit, the lower end being fixed on stator 3 that piezoelectric vibrator tilts, the upper end of Z-type sheet 4 is fixed on stator 3, and the lower end of Z-type sheet 2 is fixed on base 5.
Ladder rotating shaft 1 upper end is provided with helicitic texture near the position of rotor 2, and screw thread position is bolted with the nut 7 matched, and nut 7 screws on screw thread, can increase the contact force between bearing 6 and rotor 2, realizes frictional force and regulates.
Piezoelectric vibrator is made up of piezoelectric patches 8, beryllium-bronze sheet 9 and mass 10, and wherein piezoelectric patches 8 is pasted onto on beryllium-bronze sheet 9, and mass 10 is connected in beryllium-bronze sheet 9 outer end, and piezoelectric vibrator is provided with four.
Z-type sheet 4 is provided with four
Operation principle of the present invention is as described below:
Piezoelectric patches 8 after the alternating current of input certain frequency on piezoelectric vibrator will do cyclic bending motion, and drive the mass 10 of beryllium-bronze sheet 9 tail end to swing, because the inertia of mass 10 is large, stator 3 will be driven to rotate.Due to the restriction of Z-type sheet 4, stator 3 will do elevating movement while rotation, at ascent stage, owing to compressing with rotor 2, stator 3 rotor driven 2 can rotate forward, in the decline stage, because stator 3 is separated with rotor 2, stator 3 dallies, and makes rotor 2 produce a micro-displacement, thus complete the motion of one-period, so repeatedly drive rotor 2 to rotate.
Claims (2)
1. an inertia impaction type low-frequency piezoelectric motor, by ladder rotating shaft, rotor, stator, piezoelectric vibrator, Z-type sheet and base composition, its rotor and stator sleeve are located in ladder rotating shaft, rotor is located at above stator, be connected by bearing between rotor with ladder rotating shaft, stator and ladder rotating shaft interference fit, the lower end being fixed on stator that piezoelectric vibrator tilts, the upper end of Z-type sheet is fixed on stator, the lower end of Z-type sheet is fixed on base, it is characterized in that: described ladder rotating shaft upper end is provided with helicitic texture near the position of rotor, screw thread position is bolted with the nut matched, described piezoelectric vibrator is by piezoelectric patches, beryllium-bronze sheet and mass composition, wherein piezoelectric patches is pasted onto on beryllium-bronze sheet, mass is connected in beryllium-bronze sheet outer end, piezoelectric vibrator is provided with several.
2. a kind of inertia impaction type low-frequency piezoelectric motor according to claim 1, is characterized in that: described Z-type sheet is provided with several.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483909.2A CN103490665B (en) | 2013-10-16 | 2013-10-16 | A kind of inertia impaction type low-frequency piezoelectric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310483909.2A CN103490665B (en) | 2013-10-16 | 2013-10-16 | A kind of inertia impaction type low-frequency piezoelectric motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103490665A CN103490665A (en) | 2014-01-01 |
| CN103490665B true CN103490665B (en) | 2015-12-09 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310483909.2A Expired - Fee Related CN103490665B (en) | 2013-10-16 | 2013-10-16 | A kind of inertia impaction type low-frequency piezoelectric motor |
Country Status (1)
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| CN (1) | CN103490665B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106849746B (en) * | 2017-04-07 | 2018-08-28 | 吉林大学 | Three-degree-of-freedom piezoelectric drive platform based on inertia impact |
| CN108712103B (en) * | 2018-06-20 | 2020-04-28 | 合肥工业大学 | Impact type piezoelectric rotary motor |
| CN112910310A (en) * | 2021-04-08 | 2021-06-04 | 曹营华 | Inertial impact type piezoelectric driver capable of carrying large load and driving method thereof |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025801A1 (en) * | 2000-09-18 | 2002-03-28 | Eontech Group Inc. | Piezoelectric motor |
| CN203491927U (en) * | 2013-10-16 | 2014-03-19 | 吉林大学 | Inertia impact type low-frequency piezoelectric motor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IL137206A0 (en) * | 1999-10-31 | 2001-07-24 | Nanomotion Ltd | Piezoelectric motors and motor driving configurations |
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2013
- 2013-10-16 CN CN201310483909.2A patent/CN103490665B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2002025801A1 (en) * | 2000-09-18 | 2002-03-28 | Eontech Group Inc. | Piezoelectric motor |
| CN203491927U (en) * | 2013-10-16 | 2014-03-19 | 吉林大学 | Inertia impact type low-frequency piezoelectric motor |
Non-Patent Citations (1)
| Title |
|---|
| 《压电马达低频驱动机理与实验研究》;马胜宾;《中国优秀硕士学位论文全文数据库》;20070815(第02期);正文第33-34页及图4-4 * |
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| CN103490665A (en) | 2014-01-01 |
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Granted publication date: 20151209 Termination date: 20161016 |