JPH01125570A - Prime mover - Google Patents
Prime moverInfo
- Publication number
- JPH01125570A JPH01125570A JP28464787A JP28464787A JPH01125570A JP H01125570 A JPH01125570 A JP H01125570A JP 28464787 A JP28464787 A JP 28464787A JP 28464787 A JP28464787 A JP 28464787A JP H01125570 A JPH01125570 A JP H01125570A
- Authority
- JP
- Japan
- Prior art keywords
- shape memory
- memory alloy
- rotor
- spring
- alloy spring
- 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
- 230000002093 peripheral effect Effects 0.000 claims abstract description 25
- 230000008602 contraction Effects 0.000 claims abstract description 4
- 229910001285 shape-memory alloy Inorganic materials 0.000 claims description 62
- 238000005096 rolling process Methods 0.000 claims description 10
- 238000001816 cooling Methods 0.000 abstract description 15
- 238000010438 heat treatment Methods 0.000 abstract description 12
- 229910045601 alloy Inorganic materials 0.000 abstract description 6
- 239000000956 alloy Substances 0.000 abstract description 6
- 208000035397 Ring chromosome 7 syndrome Diseases 0.000 abstract 1
- 230000009466 transformation Effects 0.000 description 8
- 230000003446 memory effect Effects 0.000 description 3
- 230000032683 aging Effects 0.000 description 2
- 230000002457 bidirectional effect Effects 0.000 description 2
- 229910018054 Ni-Cu Inorganic materials 0.000 description 1
- 229910018106 Ni—C Inorganic materials 0.000 description 1
- 229910018481 Ni—Cu Inorganic materials 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000001815 facial effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910000734 martensite Inorganic materials 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 239000013307 optical fiber Substances 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03G—SPRING, WEIGHT, INERTIA OR LIKE MOTORS; MECHANICAL-POWER PRODUCING DEVICES OR MECHANISMS, NOT OTHERWISE PROVIDED FOR OR USING ENERGY SOURCES NOT OTHERWISE PROVIDED FOR
- F03G7/00—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for
- F03G7/06—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like
- F03G7/065—Mechanical-power-producing mechanisms, not otherwise provided for or using energy sources not otherwise provided for using expansion or contraction of bodies due to heating, cooling, moistening, drying or the like using a shape memory element
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は、形状記憶合金ばねを使用し、加熱と冷却によ
り形状記憶効果を可逆的に繰り返して回転する原動機に
関する。DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a prime mover that uses a shape memory alloy spring and rotates by reversibly repeating the shape memory effect by heating and cooling.
〈従来の技術〉
近年、形状記憶効果を示す合金の研究が進み、各種の形
状記憶合金が開発されている。このような形状記憶合金
は、高温で原子が規則正しく並んだ母相状態、低温で原
子が倒れた双晶状態のマルテンサイト相を程し、変形後
、ある変態温度以上に加熱すると記憶した形状に戻る性
質を有している。<Prior Art> In recent years, research on alloys exhibiting a shape memory effect has progressed, and various shape memory alloys have been developed. Such shape memory alloys undergo a matrix state in which atoms are arranged in an orderly manner at high temperatures, and a martensitic phase in which atoms are collapsed at low temperatures. It has the property of returning.
〈発明が解決しようとする問題点〉
従来、形状記憶合金をバイメタルやコイルばねとして用
いた各種のアクチュエータが開発されているが、形状記
憶合金ばねを用いて回転体を連続回転させる原動機は実
現されていない現状であった。<Problems to be solved by the invention> Conventionally, various actuators using shape memory alloys as bimetal or coil springs have been developed, but a prime mover that continuously rotates a rotating body using shape memory alloy springs has not been realized. The current situation was that it was not.
く問題点を解決するための手段〉
本発明は、上記の点に鑑みなされたもので、形状記憶合
金ばねを使用し、形状記憶効果を可逆的に繰り返し生じ
させて回転する原動機を提供することを目的とする。Means for Solving the Problems> The present invention has been made in view of the above points, and provides a rotating prime mover that uses a shape memory alloy spring to reversibly and repeatedly produce a shape memory effect. With the goal.
このために、本発明の原動機は、円形の周縁部と該周縁
部の内側に偏心して設けられた偏心軸部を有するケーシ
ングと、周縁部の内側にころがり軸受けを介して回転自
在に配設された外周環と、偏心軸の外周にころがり軸受
けを介して回転自在に配設された内周環と、内周環と外
周環との間に間隔をおいて連結された複数の形状記憶合
金ばねと、一部の形状記憶合金ばねを加熱するために定
位置に配設された加熱器と、一部の形状記憶合金ばねを
冷却するために定位置に配設された冷却器と、を備え、
前記内周環、外周環、形状記憶合金ばねからなるロータ
が形状記憶合金ばねの伸縮によって回転するように構成
される。To this end, the prime mover of the present invention includes a casing having a circular peripheral edge and an eccentric shaft provided eccentrically inside the peripheral edge, and a casing rotatably disposed inside the peripheral edge via a rolling bearing. an outer circumferential ring, an inner circumferential ring rotatably disposed on the outer circumference of the eccentric shaft via a rolling bearing, and a plurality of shape memory alloy springs connected at intervals between the inner circumferential ring and the outer circumferential ring. and a heater disposed at a fixed position to heat some of the shape memory alloy springs, and a cooler disposed at a fixed position to cool some of the shape memory alloy springs. ,
A rotor including the inner ring, outer ring, and shape memory alloy spring is configured to rotate by expansion and contraction of the shape memory alloy spring.
く作用〉
したがって、例えば、形状記憶合金ばねに収縮形状がそ
の製造時に記憶されている場合、加熱器の加熱領域に達
した形状記憶合金ばねはその変態点以上に加熱されて収
縮し、一方、冷却器の冷却領域に達した形状記憶合金ば
ねは冷却されて伸長し、ロータの内周環は外周環に対し
偏心しているため、形状記憶合金ばねが加熱されて収縮
しそして冷却されて伸長する方向にロータが回転力を生
じ、複数の形状記憶合金ばねが収縮と伸長を繰り返すこ
とにより、ロータは連続的に回転する。Therefore, for example, if a shape memory alloy spring has a contracted shape memorized at the time of its manufacture, the shape memory alloy spring that reaches the heating region of the heater is heated above its transformation point and contracts; The shape memory alloy spring that has reached the cooling area of the cooler is cooled and expanded, and since the inner ring of the rotor is eccentric with respect to the outer ring, the shape memory alloy spring is heated and contracted, and then cooled and expanded. The rotor generates a rotational force in the direction, and the plurality of shape memory alloy springs repeatedly contract and expand, thereby causing the rotor to rotate continuously.
〈実施例〉 以下、本発明の実施例を図面に基づいて説明する。<Example> Embodiments of the present invention will be described below based on the drawings.
第１図と第２図は原動機の第１実施例の断面図を示し、
１はそのケーシングである。ケーシング１には円形の周
縁部２が突設され、さらにその内部に偏心軸部３が円形
の周縁部２と偏心した位置に突設される。ケーシング１
の周縁部２の内側と偏心軸部３の外側にころがり軸受と
なるボールベアリング４．５が配設され、これらのボー
ルベアリング４．５の間にロータ６が回転可能に配設さ
れる。1 and 2 show cross-sectional views of a first embodiment of the prime mover,
1 is its casing. A circular peripheral edge part 2 is provided protruding from the casing 1, and an eccentric shaft part 3 is provided inside the casing 1 in a protruding manner at a position eccentric to the circular peripheral edge part 2. Casing 1
Ball bearings 4.5 serving as rolling bearings are arranged inside the peripheral edge 2 and outside the eccentric shaft 3, and a rotor 6 is rotatably arranged between these ball bearings 4.5.
すなわち、ロータ６は外周環７と内周環８と形状記憶合
金ばね９とからなり、周縁部２の内側にボールベアリン
グ４を介して外周環７が回転自在に配設され、偏心軸部
３の外側にボールベアリング５を介して内周環８が回転
自在に配設され、この外周環７と内周環８との間に、例
えば、８本の形状記憶合金ばね９が等間隔で連結されて
いる。That is, the rotor 6 is composed of an outer ring 7, an inner ring 8, and a shape memory alloy spring 9. The outer ring 7 is rotatably disposed inside the peripheral edge 2 via a ball bearing 4, and the eccentric shaft 3 An inner ring 8 is rotatably disposed on the outside of the ring via a ball bearing 5, and between the outer ring 7 and the inner ring 8, for example, eight shape memory alloy springs 9 are connected at equal intervals. has been done.
形状記憶合金ばね９は、例えば、Ｔｉ−Ｎｉ−Ｃｕ系形
状記憶合金をコイル状に成形して作られ、伸長したコイ
ル状に成形した合金を、拘束した状態で溶体化処理した
後、急冷処理を施し、次に収縮形状に拘束した状態で時
効処理を施すことにより、高温相と低温相において二方
向性を有する形状記憶合金ばねが形成される。したがっ
て、この形状記憶合金ばね９を変態点以上に加熱すると
、予め記憶した収縮形状に変形し、その後冷却すると元
の伸長した形状に戻るように変形する。The shape memory alloy spring 9 is made by, for example, forming a Ti-Ni-Cu-based shape memory alloy into a coil shape, and the alloy formed into an elongated coil shape is subjected to solution treatment in a restrained state, and then subjected to a rapid cooling treatment. A shape memory alloy spring having bidirectional properties in a high temperature phase and a low temperature phase is formed by performing an aging treatment while being restrained in a contracted shape. Therefore, when this shape memory alloy spring 9 is heated above its transformation point, it deforms into a pre-memorized contracted shape, and when it is cooled thereafter, it deforms back to its original expanded shape.
一方、第１図に示すように、ケーシング１の中央右寄り
には加熱用の開口部１１が設けられ、その開口部１１の
背後に加熱器１３が開口部１１から熱風を内側の約３本
の形状記憶合金ばね９に当てるように配置される。また
、ケーシング１の中央左寄りには冷却用の開口部１２が
設けられ、その開口部１２の背後に冷却器１４が開口部
１２から冷気を内側の約３木の形状記憶合金ばね９に当
てるように配置される。加熱器１３には、電気ヒータ或
はガスバーナによって加熱した熱風をファンによって吹
き出す構造のもの、或は集光した太陽光線等を光ファイ
バー等を経て加熱領域のばね９に照射して加熱する構造
のものが考えられる。On the other hand, as shown in FIG. 1, a heating opening 11 is provided on the right side of the center of the casing 1, and a heater 13 is installed behind the opening 11 to blow hot air from the opening 11 into about three inner channels. It is arranged so as to be in contact with the shape memory alloy spring 9. In addition, a cooling opening 12 is provided on the left side of the center of the casing 1, and a cooler 14 is installed behind the opening 12 so that cool air is directed from the opening 12 to a shape memory alloy spring 9 made of about three pieces of wood inside. will be placed in The heater 13 has a structure in which hot air heated by an electric heater or gas burner is blown out by a fan, or a structure in which the spring 9 in the heating area is heated by irradiating concentrated sunlight or the like through an optical fiber or the like. is possible.
また、冷却器１４には、冷媒を通す冷却管と送風器を設
けた構造のものが使用できる。Further, the cooler 14 may have a structure that includes a cooling pipe through which a refrigerant passes and an air blower.
なお、ロータの回転力を取り出すために外周環７の前面
にプーリ一部１５が設けられている。Note that a pulley portion 15 is provided on the front surface of the outer circumferential ring 7 in order to take out the rotational force of the rotor.
次に、上記構成の原動機の動作を説明する。Next, the operation of the prime mover having the above configuration will be explained.
加熱器１３が作動して熱風を開口部１１からケーシング
１内に吹き込み、冷却器１４が作動して冷風を開口部１
２からケーシング１内に吹き込むと、第１図のように、
開口部ｌｌ上の加熱領域に達した形状記憶合金ばね９は
加熱され、開口部１２上の冷却領域に達した形状記憶合
金ばね９は冷却される。The heater 13 operates to blow hot air into the casing 1 through the opening 11, and the cooler 14 operates to blow cold air into the opening 1.
When blowing into casing 1 from 2, as shown in Figure 1,
The shape memory alloy spring 9 that has reached the heating area above the opening 11 is heated, and the shape memory alloy spring 9 that has reached the cooling area above the opening 12 is cooled.
この時、加熱領域における形状記憶合金ばね９が変態点
以上に加熱されると、記憶した収縮形状に収縮し、これ
によって、ロータ６は第１図に示すように収縮方向の力
Ｆ１の分力として矢印で示す回転方向の力Ｆ２を生じる
。一方、冷却領域における形状記憶合金ばね９が変態点
未満に冷却されると、元の伸長形状に戻り、これによっ
て、ロータ６は第１図のように伸長方向の力Ｆ４の分力
として矢印で示す回転方向の力Ｆ５を生じる。At this time, when the shape memory alloy spring 9 in the heating region is heated above the transformation point, it contracts to the memorized contracted shape, and as a result, the rotor 6 is applied with a component of the force F1 in the contracting direction, as shown in FIG. As a result, a force F2 in the rotational direction shown by the arrow is generated. On the other hand, when the shape memory alloy spring 9 in the cooling region is cooled below its transformation point, it returns to its original elongated shape, thereby causing the rotor 6 to act as a component of the force F4 in the elongated direction as shown by the arrow in FIG. A force F5 in the rotational direction shown is generated.
このように、加熱又は冷却領域に達した各形状記憶合金
ばね９が収縮又は伸長する際の力によってロータ６には
第１図時計方向の回転力が発生し、各形状記憶合金ばね
９が伸縮を繰り返すことによりロータ６は連続して回転
する。In this way, the force generated when each shape memory alloy spring 9 that has reached the heating or cooling region contracts or expands generates a rotational force in the clockwise direction in FIG. 1 in the rotor 6, causing each shape memory alloy spring 9 to expand and contract. By repeating this, the rotor 6 rotates continuously.
第３図と第４図は第２実施例の断面図を示している。3 and 4 show cross-sectional views of the second embodiment.
この第２実施例の原動機は、形状記憶合金ばねを除か、
上記の実施例と同様の構造である。すなわち、ケーシン
グ１には円形の周縁部２が突設され、さらにその内部に
偏心軸部３が円形の周縁部２と偏心した位置に突設され
る。ケーシング１の周縁部２の内側と偏心軸部３の外側
にころがり軸受となるボールベアリング４．５が配設さ
れ、これらのボールベアリング４．５の間にロータ６が
回転可能に配設される。The prime mover of this second embodiment except for the shape memory alloy spring,
The structure is similar to the above embodiment. That is, the casing 1 has a circular peripheral edge 2 projecting therein, and an eccentric shaft 3 protruding inside the casing 1 at a position eccentric to the circular peripheral edge 2. Ball bearings 4.5 serving as rolling bearings are arranged inside the peripheral edge 2 of the casing 1 and outside the eccentric shaft 3, and a rotor 6 is rotatably arranged between these ball bearings 4.5. .
ロータ６は外周環７と内周環８と形状記憶合金ばね１９
とからなり、周縁部２の内側にボールベアリング４を介
して外周環７が回転自在に配設され、偏心軸部３の外側
にボールベアリング５を介して内周環８が回転自在に配
設され、この外周環７と内周環８との間に、例えば、８
枚の形状記憶合金ばね１９がスリット状の間隔をあけて
連結されている。The rotor 6 includes an outer ring 7, an inner ring 8, and a shape memory alloy spring 19.
An outer ring 7 is rotatably disposed inside the peripheral portion 2 via a ball bearing 4, and an inner ring 8 is rotatably disposed outside the eccentric shaft portion 3 via a ball bearing 5. For example, between the outer ring 7 and the inner ring 8,
A plurality of shape memory alloy springs 19 are connected at slit-like intervals.
この形状記憶合金ばね１９は、例えば、Ｔｉ−Ｎｉ−Ｃ
ｕ系形状記憶合金を波板状（ベローズ状）に成形して作
られ、伸長した波板状に成形した合金を、拘束した状態
で溶体化処理した後、急冷処理を施し、次に収縮形状に
拘束した状態で時効処理を施すことにより、高温相と低
温相において二方向性を有する形状記憶合金ばねが形成
される。したがって、この形状記憶合金ばね１９を変態
点以上に加熱すると、予め記憶した収縮形状に変形し、
その後冷却すると元の伸長した形状に戻るように変形す
る。This shape memory alloy spring 19 is, for example, Ti-Ni-C
It is made by molding a U-based shape memory alloy into a corrugated plate shape (bellows shape), and the alloy formed into an elongated corrugated plate shape is subjected to solution treatment in a restrained state, followed by rapid cooling treatment, and then the contracted shape. By performing aging treatment in a state where the spring is constrained to , a shape memory alloy spring having bidirectionality in a high temperature phase and a low temperature phase is formed. Therefore, when this shape memory alloy spring 19 is heated above its transformation point, it deforms into a pre-memorized contracted shape,
When it is then cooled, it deforms back to its original elongated shape.
一方、上記の実施例と同様に、ケーシング１の中央右寄
りには加熱用の開口部が設けられ、その開口部の背後に
加熱器１３が開口部から熱風を内側の約３枚の形状記憶
合金ばね１９に当てるように配置される。また、ケーシ
ング１の中央左寄りには冷却用の開口部が設けられ、そ
の開口部の背後に冷却器１４が開口部から冷気を内側の
約３枚の形状記憶合金ばね１９に当てるように配置され
る。On the other hand, similarly to the above embodiment, a heating opening is provided on the right side of the center of the casing 1, and a heater 13 is installed behind the opening to blow hot air through the opening to about three shape memory alloy sheets inside. It is arranged so as to contact the spring 19. Further, a cooling opening is provided on the left side of the center of the casing 1, and a cooler 14 is arranged behind the opening so as to direct cold air from the opening onto about three shape memory alloy springs 19 inside. Ru.
このように構成された原動機は、上記と同様、加熱器１
３が作動して熱風を開口部からケーシング１内に吹き込
み、冷却器１４が作動して冷風を開口部からケーシング
１内に吹き込むと、′ｓ３図のように、加熱領域に達し
た形状記憶合金ばね１９は加熱され、冷却領域に達した
形状記憶合金ばね１９は冷却される。The prime mover configured in this way has a heater 1 as described above.
3 operates to blow hot air into the casing 1 from the opening, and when the cooler 14 operates and blows cold air into the casing 1 from the opening, the shape memory alloy that has reached the heated area as shown in Figure 's3. The spring 19 is heated, and the shape memory alloy spring 19 that has reached the cooling region is cooled.
この時、加熱領域における形状記憶合金ばね１９が変態
点以上に加熱されると、記憶した収縮形状に収縮し、こ
れによって、ロータ６は第３図に示すように収縮方向の
力Ｆ １’の分力として矢印で示す回転方向の力Ｆ２を
生じる。一方、冷却領域における形状記憶合金ばね１９
が変態点未満に冷却されると、元の伸長形状に戻り、こ
れによって、ロータ６は第３図のように伸長方向の力Ｆ
４の分力として矢印で示す回転方向の力Ｆ５を生じるこ
のように、加熱又は冷却領域に達した各形状記憶合金ば
ね１９が収縮又は伸長する際の力によってロータ６には
第３図時計方向の回転力が発生し、各形状記憶合金ばね
１９が伸縮を繰り返すことによりロータ６は連続して回
転する。At this time, when the shape memory alloy spring 19 in the heating region is heated above its transformation point, it contracts to the memorized contracted shape, and as a result, the rotor 6 receives a force F1' in the contracting direction as shown in FIG. A force F2 in the rotation direction shown by the arrow is generated as a component force. On the other hand, the shape memory alloy spring 19 in the cooling region
When the rotor 6 is cooled below the transformation point, it returns to its original elongated shape, and thereby the rotor 6 is subjected to a force F in the elongated direction as shown in FIG.
In this way, when each shape memory alloy spring 19 reaches the heating or cooling region and contracts or expands, a force F5 in the rotational direction shown by the arrow is generated as a component force F5, which is applied to the rotor 6 in the clockwise direction in FIG. A rotational force is generated, and each shape memory alloy spring 19 repeatedly expands and contracts, so that the rotor 6 rotates continuously.
なお、上記実施例とは逆に形状記憶合金ばね９又は１９
に伸長形状を記憶させた場合、加熱するとばねが伸長す
るように変形するため、上記の実施例と逆の位置で伸縮
が生じ、ロータ６は逆回転する。また、上記実施例にお
いて、加熱器１３と冷却器１４の位置を入れかえること
によって、ロータ６を逆回転させることもできる。Note that, contrary to the above embodiment, the shape memory alloy spring 9 or 19
When the expanded shape is stored in the spring, the spring is deformed to expand when heated, so expansion and contraction occur at positions opposite to those in the above embodiment, and the rotor 6 rotates in the opposite direction. Further, in the above embodiment, the rotor 6 can also be rotated in the opposite direction by switching the positions of the heater 13 and the cooler 14.
このような構造の原動機は、構造が簡単であることに加
え、作動音が静かであり、温水や光エネルギー等を使用
すれば無公害の機関とすることができる。In addition to being simple in structure, a prime mover with such a structure is quiet in operation, and can be made into a pollution-free engine by using hot water, light energy, or the like.
なお、上記の実施例では二方向性の形状記憶合金ばねを
使用したが、一方向性の形状記憶合金ばねでも回転は可
能である。Note that although a bidirectional shape memory alloy spring was used in the above embodiment, rotation is possible even with a unidirectional shape memory alloy spring.
〈発明の効果〉
以上説明したように、本発明の原動機によれば、円形の
周縁部と該周縁部の内側に偏心して設けられた偏心軸部
を有するケーシングと、周縁部の内側にころがり軸受け
を介して回転自在に配設された外周環と、偏心軸の外周
にころがり軸受けを介して回転自在に配設された内周環
と、内周環と外周環との間に間隔をおいて連結された複
数の形状記憶合金ばねと、一部の形状記憶合金ばねを加
熱するために定位置に配設された加熱器と、一部の形状
記憶合金ばねを冷却するために定位置に配設された冷却
器と、を備えて構成したから、例えば、形状記憶合金ば
ねに収縮形状、が記憶されている場合、加熱器の加熱領
域に達した形状記憶合金ばねがその変態点以上に加熱さ
れて収縮し、一方、冷却器の冷却領域に達した形状記憶
合金ばねが冷却されて伸長し、ロータの内周環が外周環
に対し偏心しているため、形状記憶合金ばねが加熱され
て収縮しそして冷却されて伸長する方向にロータが回転
力を生じ、複数の形状記憶合金ばねが収縮と伸長を繰り
返すことにより、ロータを連続して回転させることがで
きる。また、電気的に動く部分がなく、冷却器や加熱器
は定位置に固定すればよいため、構造が非常に簡単であ
る。<Effects of the Invention> As described above, the prime mover of the present invention includes a casing having a circular peripheral edge and an eccentric shaft provided eccentrically inside the peripheral edge, and a rolling bearing inside the peripheral edge. an outer ring rotatably disposed on the outer periphery of the eccentric shaft via a rolling bearing; an inner ring rotatably disposed on the outer periphery of the eccentric shaft via a rolling bearing; A plurality of connected shape memory alloy springs, a heater disposed at a fixed position to heat some of the shape memory alloy springs, and a heater disposed at a fixed position to cool some of the shape memory alloy springs. For example, if a shape memory alloy spring has a contracted shape memorized, the shape memory alloy spring that reaches the heating area of the heater will be heated above its transformation point. On the other hand, the shape memory alloy spring that has reached the cooling area of the cooler is cooled and expands, and since the inner circumferential ring of the rotor is eccentric with respect to the outer circumferential ring, the shape memory alloy spring is heated and contracts. Then, the rotor generates a rotational force in the direction in which it is cooled and expanded, and the plurality of shape memory alloy springs repeatedly contract and expand, thereby making it possible to continuously rotate the rotor. Furthermore, since there are no electrically moving parts and the cooler and heater need only be fixed in place, the structure is very simple.
第１図は本発明の第１実施例の断面図、第２図は第１図
の中央縦断面図、第３図は第２実施例の断面図、第４図
は第３図の中央縦断面図である。
１・・・ケーシング、
２・・・周縁部、
３・・・偏心軸部、
４．５・・・ボールベアリング
（ころがり軸受け）、
６・・・ロータ、
７・・・外周環、
８・・・内周環、
９・・・形状記憶合金ばね、
１３・・・加熱器、
１４・・・冷却器。
特 許 出 願 人
穂高電子工業株式会社
第 １ 図
１４・・・顔ｍ器
第２図
第３ｒＭFIG. 1 is a sectional view of the first embodiment of the present invention, FIG. 2 is a central longitudinal sectional view of FIG. 1, FIG. 3 is a sectional view of the second embodiment, and FIG. 4 is a central longitudinal sectional view of FIG. 3. It is a front view. DESCRIPTION OF SYMBOLS 1...Casing, 2...Peripheral part, 3...Eccentric shaft part, 4.5...Ball bearing (rolling bearing), 6...Rotor, 7...Outer circumferential ring, 8... - Inner peripheral ring, 9... Shape memory alloy spring, 13... Heater, 14... Cooler. Patent application Hitohotaka Electronics Industry Co., Ltd. No. 1 Figure 14... Facial equipment Figure 2 Figure 3rM
Claims (1)
心軸部を有するケーシングと、 該周縁部の内側にころがり軸受けを介して回転自在に配
設された外周環と、 該偏心軸の外周にころがり軸受けを介して回転自在に配
設された内周環と、 該内周環と外周環との間に間隔をおいて連結された複数
の形状記憶合金ばねと、 一部の該形状記憶合金ばねを加熱するために定位置に配
設された加熱器と、 一部の前記形状記憶合金ばねを冷却するために定位置に
配設された冷却器と、 を備え、前記内周環、外周環、形状記憶合金ばねからな
るロータが該形状記憶合金ばねの伸縮によつて回転する
ことを特徴とする原動機。[Scope of Claims] A casing having a circular peripheral edge and an eccentric shaft provided eccentrically inside the peripheral edge, and an outer peripheral ring rotatably disposed inside the peripheral edge via a rolling bearing. an inner ring rotatably disposed on the outer periphery of the eccentric shaft via a rolling bearing; a plurality of shape memory alloy springs connected at intervals between the inner ring and the outer ring; , a heater disposed at a fixed position to heat some of the shape memory alloy springs, and a cooler disposed at a fixed position to cool some of the shape memory alloy springs; A motor, characterized in that a rotor comprising the inner circumferential ring, the outer circumferential ring, and a shape memory alloy spring is rotated by expansion and contraction of the shape memory alloy spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28464787A JPH01125570A (en) | 1987-11-11 | 1987-11-11 | Prime mover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28464787A JPH01125570A (en) | 1987-11-11 | 1987-11-11 | Prime mover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01125570A true JPH01125570A (en) | 1989-05-18 |
Family
ID=17681174
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28464787A Pending JPH01125570A (en) | 1987-11-11 | 1987-11-11 | Prime mover |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01125570A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3306082A3 (en) * | 2016-10-04 | 2018-05-30 | Universität des Saarlandes | Energy converter with thermoelastic assembly and heating/cooling system |
| CN112944720A (en) * | 2021-04-13 | 2021-06-11 | 西北工业大学 | Shape memory alloy-based refrigerating and heating device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125778A (en) * | 1983-12-13 | 1985-07-05 | Kawasaki Steel Corp | Rotary driving device utilizing shape memory alloy |
| JPS60175840A (en) * | 1984-02-22 | 1985-09-10 | Yaskawa Electric Mfg Co Ltd | Actuator |
| JPS60201142A (en) * | 1984-03-23 | 1985-10-11 | Yaskawa Electric Mfg Co Ltd | Actuator |
-
1987
- 1987-11-11 JP JP28464787A patent/JPH01125570A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60125778A (en) * | 1983-12-13 | 1985-07-05 | Kawasaki Steel Corp | Rotary driving device utilizing shape memory alloy |
| JPS60175840A (en) * | 1984-02-22 | 1985-09-10 | Yaskawa Electric Mfg Co Ltd | Actuator |
| JPS60201142A (en) * | 1984-03-23 | 1985-10-11 | Yaskawa Electric Mfg Co Ltd | Actuator |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3306082A3 (en) * | 2016-10-04 | 2018-05-30 | Universität des Saarlandes | Energy converter with thermoelastic assembly and heating/cooling system |
| CN112944720A (en) * | 2021-04-13 | 2021-06-11 | 西北工业大学 | Shape memory alloy-based refrigerating and heating device |
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