JPS6173582A - Electrostrictive drive motor - Google Patents
Electrostrictive drive motorInfo
- Publication number
- JPS6173582A JPS6173582A JP59196168A JP19616884A JPS6173582A JP S6173582 A JPS6173582 A JP S6173582A JP 59196168 A JP59196168 A JP 59196168A JP 19616884 A JP19616884 A JP 19616884A JP S6173582 A JPS6173582 A JP S6173582A
- Authority
- JP
- Japan
- Prior art keywords
- rotor
- contactor
- electrostrictive
- elements
- drive motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/0005—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing non-specific motion; Details common to machines covered by H02N2/02 - H02N2/16
- H02N2/001—Driving devices, e.g. vibrators
- H02N2/002—Driving devices, e.g. vibrators using only longitudinal or radial modes
- H02N2/0025—Driving devices, e.g. vibrators using only longitudinal or radial modes using combined longitudinal modes
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N2/00—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction
- H02N2/10—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors
- H02N2/103—Electric machines in general using piezoelectric effect, electrostriction or magnetostriction producing rotary motion, e.g. rotary motors by pressing one or more vibrators against the rotor
Landscapes
- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
この発明はm歪素子を用いて機械的回転出力を取り出す
電歪駆動モータに関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an electrostrictive drive motor that uses m-strain elements to extract mechanical rotational output.
従来、この種の装置として第4図に示すものがあった。 Conventionally, there has been a device of this type as shown in FIG.
第4図は従来の電歪駆動モータを示す概略構成図であり
、図において(1)は電歪素子、(2)はこの電歪素子
(1)の可動端に装着された接触子、(3)はこの接触
子(2)によって駆動される回転子、(4)は交流電源
である。FIG. 4 is a schematic configuration diagram showing a conventional electrostrictive drive motor. In the figure, (1) is an electrostrictive element, (2) is a contactor attached to the movable end of this electrostrictive element (1), and ( 3) is a rotor driven by this contactor (2), and (4) is an AC power source.
次に動作について説明する。交流電源(4)の交流電圧
が電歪素子(1)に印加されると、その可動端に装着さ
れた接触子(2)には、入力電圧に応じた矢印(2)の
向きの振動を生じる。接触子(2)は回転子(3)の表
面に密接して設置されているので、振動時には回転子(
3)を矢印(功の方向に回転させる。Next, the operation will be explained. When an AC voltage from an AC power supply (4) is applied to the electrostrictive element (1), the contactor (2) attached to the movable end of the element vibrates in the direction of the arrow (2) according to the input voltage. arise. Since the contactor (2) is installed closely on the surface of the rotor (3), the rotor (
3) Rotate in the direction of the arrow (gong).
上記のような従来の電歪駆動モータでは接触子の振動の
方向が回転子の表面に衝撃を与える形となっており、接
触子および回転子の磨耗や変形を生ぜしめるため寿命が
短かいという問題点があった。また接触子の振動の方向
を回転子表面とほぼ平行として衝撃を少なくしようとす
れば接触子と回転子の密着性が減少するという問題点が
あった。In conventional electrostrictive drive motors such as those mentioned above, the direction of vibration of the contactor is such that it impacts the surface of the rotor, which causes wear and deformation of the contactor and rotor, resulting in a short lifespan. There was a problem. Furthermore, if an attempt is made to reduce the impact by setting the vibration direction of the contactor substantially parallel to the rotor surface, there is a problem in that the adhesion between the contactor and the rotor decreases.
この発明は、かかる問題点を解決するためになされたも
ので、接触子と回転子の密着性もよく、且つ寿命の長い
電歪駆動モータを提供するものである。The present invention was made to solve these problems, and provides an electrostrictive drive motor that has good adhesion between the contacts and the rotor and has a long life.
この発明による電歪駆動モータは、直角に配置された二
個の電歪素子、これら二個の電歪素子の往復運動の位相
を90°ずらせる位相器、及び二個の電歪素子の可動端
を連結して得られる共通の接触子を備え、電歪素子の運
動時に上記接触子と回転子が接触して回転子を回転させ
るものである。The electrostrictive drive motor according to the present invention includes two electrostrictive elements arranged at right angles, a phase shifter that shifts the phase of the reciprocating motion of these two electrostrictive elements by 90 degrees, and a movable motor for moving the two electrostrictive elements. It is provided with a common contactor obtained by connecting the ends, and when the electrostrictive element moves, the contactor and the rotor come into contact to rotate the rotor.
この発明における接触子の運動の軌跡は密着性よく回転
子の表面に沿う形となり、接触子および回転子の磨耗が
少なくなる。In this invention, the locus of movement of the contactor closely follows the surface of the rotor, reducing wear on the contactor and the rotor.
第1図はこの発明の一実施例による電歪駆動モータを示
す概略構成図であり、図において、(la)(1b)は
直角に配置された二個の電歪素子、(2)は上記二個の
電歪素子0a)(1b)の可動端を連結して得られる共
通の接触子、(5)は二個の電歪素子(1a)(1b)
の往復運動の位相を90°ずらせる位相器である。FIG. 1 is a schematic configuration diagram showing an electrostrictive drive motor according to an embodiment of the present invention. In the figure, (la) and (1b) are two electrostrictive elements arranged at right angles, and (2) is the above-mentioned electrostrictive element. A common contact obtained by connecting the movable ends of two electrostrictive elements 0a) (1b), (5) is a common contactor obtained by connecting the movable ends of two electrostrictive elements (1a) (1b)
This is a phase shifter that shifts the phase of the reciprocating motion by 90°.
次に動作について説明する。電歪素子(la) 。Next, the operation will be explained. Electrostrictive element (LA).
(1b)には略90°位相の異なる交流電圧が印加され
るので、それらの可動端はそれぞれXおよびyで・示さ
れる方向で振動し、第2図の実線(6a)および(6b
)で示すような運動を接触子(2)に伝達する。第8図
はこの運動を説明するための接触子と回転子の接触部分
の詳細図である。接触子の運動は第2図の(6a)およ
び(6b)で示されるXおよびyの運動を合成したもの
で、第8図の円形の軌跡(8)となる。(1b) are applied with alternating current voltages with a phase difference of approximately 90°, their movable ends vibrate in the directions indicated by X and y, respectively, and the solid lines (6a) and (6b) in FIG.
) is transmitted to the contact (2). FIG. 8 is a detailed view of the contact portion between the contactor and the rotor to explain this movement. The movement of the contactor is a combination of the X and y movements shown in (6a) and (6b) in FIG. 2, resulting in a circular trajectory (8) in FIG. 8.
接触子(2)の先端が回転子(3)に1回転に1回接触
することにより、回転子(3)を矢印(匂の方向に駆動
する。この接触時の接触子の先端の運動の方向は回転子
(3)の表面に平行であり、駆動時の衝撃が少ない。し
かも接触子(2)と回転子(3)の密着性は良い状態に
保たれる。The tip of the contactor (2) contacts the rotor (3) once per revolution, thereby driving the rotor (3) in the direction of the arrow. The direction is parallel to the surface of the rotor (3), so there is little impact during driving.Moreover, the adhesion between the contactor (2) and the rotor (3) is maintained in a good state.
なお上記実施例では電歪素子に正弦波状の交流電圧を印
加した場合について説明したが、この電圧波形を適当に
選ぶことにより接触子(2)の先端の運動軌跡を第3図
の点線(9)の様により回転子(3)の表面の曲線に近
づけることができる。このとき二個の電歪素子の変位の
波形は第2図の点線(7a)および(7b)で示すよう
なものとなる。このようKすれば接触子と回転子の密着
性が一層改善される。In the above embodiment, a case was explained in which a sinusoidal AC voltage was applied to the electrostrictive element, but by appropriately selecting this voltage waveform, the motion locus of the tip of the contactor (2) can be traced to the dotted line (9) in FIG. ), it is possible to approximate the curve of the surface of the rotor (3). At this time, the waveforms of the displacements of the two electrostrictive elements become as shown by dotted lines (7a) and (7b) in FIG. By performing K in this manner, the adhesion between the contactor and the rotor is further improved.
この発明は以上説明したように、二個の電歪素子を直角
をなして配置し、これらの電歪素子の往復運動の位相を
90°ずらせ、上記二個の電歪素子の可動端を連結して
得られる共通の接触子を回転子の表面に沿って動かすこ
とにより、接触子と回転子の磨耗が少なくなり、寿命が
長く密着性のよいものが得られる効果がある。As explained above, this invention arranges two electrostrictive elements at right angles, shifts the phase of the reciprocating motion of these electrostrictive elements by 90 degrees, and connects the movable ends of the two electrostrictive elements. By moving the obtained common contact along the surface of the rotor, wear of the contact and the rotor is reduced, resulting in a long life and good adhesion.
第1図はこの発明の一実施例による電歪駆動モータを示
す概略構成図、第2図及び第3図は各々この発明の一実
施例による電歪駆動モータの動作を説明する説明図、第
4図は従来の電歪駆動モータを示す概略構成図である。
(la)、 (lb)・・・電歪素子、(2)・・・接
触子、(3)・・・回転子、(5)・・・位相器
なお、図中同一符号は同−又は相当部分を示す。
第1図
3:1コ幹壬
Jl正才II岩り
第2図
第3図
第4図FIG. 1 is a schematic configuration diagram showing an electrostrictive drive motor according to an embodiment of the present invention, FIGS. FIG. 4 is a schematic configuration diagram showing a conventional electrostrictive drive motor. (la), (lb)...electrostrictive element, (2)...contactor, (3)...rotor, (5)...phase shifter. Note that the same reference numerals in the drawings indicate the same - or A considerable portion is shown. Fig. 1 3: 1 Kommi Jl Jeongsai II rock ridge Fig. 2 Fig. 3 Fig. 4
Claims (1)
において、直角をなして配置された二個の電歪素子、こ
れら二個の電歪素子の往復運動の位相を90°ずらせる
位相器、及び、上記二個の電歪素子の可動端を連結して
得られる共通の接触子を備え、上記電歪素子の運動時に
上記接触子と上記回転子とが接触して上記回転子を回転
させること特徴とする電歪駆動モータ。In a device that drives a rotor using the reciprocating motion of an electrostrictive element, two electrostrictive elements are arranged at right angles, and a phase that shifts the phase of the reciprocating motion of these two electrostrictive elements by 90 degrees. and a common contactor obtained by connecting the movable ends of the two electrostrictive elements, and the contactor and the rotor come into contact with each other during movement of the electrostrictive element to cause the rotor to move. An electrostrictive drive motor characterized by rotation.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59196168A JPS6173582A (en) | 1984-09-17 | 1984-09-17 | Electrostrictive drive motor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP59196168A JPS6173582A (en) | 1984-09-17 | 1984-09-17 | Electrostrictive drive motor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6173582A true JPS6173582A (en) | 1986-04-15 |
Family
ID=16353335
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP59196168A Pending JPS6173582A (en) | 1984-09-17 | 1984-09-17 | Electrostrictive drive motor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6173582A (en) |
-
1984
- 1984-09-17 JP JP59196168A patent/JPS6173582A/en active Pending
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