JPS5944959A - Linear actuator - Google Patents
Linear actuatorInfo
- Publication number
- JPS5944959A JPS5944959A JP15277882A JP15277882A JPS5944959A JP S5944959 A JPS5944959 A JP S5944959A JP 15277882 A JP15277882 A JP 15277882A JP 15277882 A JP15277882 A JP 15277882A JP S5944959 A JPS5944959 A JP S5944959A
- Authority
- JP
- Japan
- Prior art keywords
- alloy
- current
- coil
- linear actuator
- coil 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
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)
- Linear Motors (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は市、気菌エネルギーを機械的エネルキーに変換
するリニア・アクチュエータに関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a linear actuator that converts atmospheric energy into mechanical energy.
従来、電気−機械エネルギー変ｊ撃用のリニアアクチュ
エータノニしては、リニアモータやボイスフィルモータ
等があるか、こＪ′Ｌらリニアモータやボイスコイノド
モータは、構成」二、（占気回ｖｉｉ部品の爪損が爪く
、さらに稀品虎須シも多くなるため、軽量小形化するに
は困Ｉｙｉｊｌ’ ７：ｒものであった。Conventionally, there have been linear actuators for electric-mechanical energy change such as linear motors and voice fill motors. It was difficult to make it lighter and smaller because the parts had a lot of damage and there were also a lot of rare parts.
また、電歪素子を用いた小形・軒＋’Ｈ＋のリニア・ア
クチュエータもあるが、これは印加する霜、圧に比べて
変位量が小さいという欠点かあった。There is also a small eaves+'H+ linear actuator using an electrostrictive element, but this has the disadvantage that the amount of displacement is small compared to the applied frost and pressure.
そこで、本発明は上記従来技術にｆ’（ｉみ、フィルば
ね形状の形状記憶効果を有する合金を用いてこれに電流
を流しこの合金自体の市電抵抗によって発生する温度上
昇を活用することにより、描造が簡単で軽量・小形のリ
ニア・アクチュエータを提供することを目的とする。か
かる目的を達成する本発明の・構成は、Ｊｌｎ ”４ｊ
：ｄ［：、憶効果を有するフィルばね形状の合金と、こ
の余分に通流する市、流を調整する電流調整器とからな
り、前記電流調整器による市、流の調整によって移動物
体の変位およびその移動速度を制御するようにしたこと
を特徴とする。Therefore, the present invention is based on the above conventional technology by using an alloy having a shape memory effect in the shape of a fill spring, passing a current through it, and utilizing the temperature rise caused by the streetcar resistance of this alloy itself. It is an object of the present invention to provide a lightweight and compact linear actuator that is easy to draw.
:d[:, consists of a fill spring-shaped alloy having a memory effect, and a current regulator that adjusts the current flowing through this extra current, and the displacement of a moving object is caused by adjusting the current and flow by the current regulator. and its movement speed is controlled.
以下に本発明の実施例を図面に基づいて詳細に説明する
。Embodiments of the present invention will be described in detail below based on the drawings.
第一の実施例を第１図（ａ） （ｂ）に示す。第１図（
ａ）は駆動前の状態を示し、第１図（ｂ）は駆動後の状
態を示している。本実施例のリニア・アクチュエータは
、両図に示す如く、移動物体重を上下移動させる構成と
なっており１．’ＩＪ！Ｌ的形牡記憶効果をイＪするコ
イルばね形状の合金２と、この合金２の両端に接続され
ａが１．すイ）′ｉｉ’ｉ、流、を１；）・ＩＮ ｌｌ
ｉ″ζすイ）電流調整器３からなる。ＤｉＩ記コイルＵ
゛ねＪｌ・クセ゛の合金２はぞの上端か支持−Ｊ−Ｉ４
１１ｒＣＩ桟イ′、：ＩＱノら７またゾＩＪ１１子５に
よって吊］・けられ、その］）“７＋Ａ”＋ ７５（、
に６：１． ’；６Ｍ千〇によって移卓１＋４”ゞクト
ト１を吊下げる桿・ｔ１１νと４−っている。尚、下側
のぐｌ′Ａｆ子６ｔ／″４Ｌ移φＩＩ ！１１：４イ・
；・１に１１・ｌ・イ・（りられており、し１中７は目
盛で直・イ）１、こわらの各ＧＩ：ＩＡ子５と６には１
）ｊ、＆ ｎｌ！Ｊ １．ｊ ？ｉＳ ３かト暑：ｌ：
、’ ａれ、この７Ｒ１斌虐整器３ｄ図示しない電ｆｌ
ｉ＋！ ＋／Ｃ４％ｊ叙、′、きれているｎ
前記コイルげねＪ［り状の合金２は、ニッケル・チタン
或いはニッケル・チタン・６１ｃ（よりなる熱的形状記
憶効果を有する合金により形成されたものであ、す、こ
れに電流を流すことによって合金自体の市１気抵抗によ
る温度上昇により伸縮させて、電気−機械エネルギーの
俊ぢ５を行なうように構成されている。A first embodiment is shown in FIGS. 1(a) and 1(b). Figure 1 (
1(a) shows the state before driving, and FIG. 1(b) shows the state after driving. As shown in both figures, the linear actuator of this embodiment is configured to move the weight of a moving object up and down.1. 'IJ! An alloy 2 in the shape of a coil spring that exhibits an L-shaped memory effect, and a connected to both ends of this alloy 2 with a 1. Sui)'ii'i, Flow, 1;)・IN ll
i″ζS A) Consists of a current regulator 3.DiI coil U
The upper end of the alloy 2 of Jl.
11 rCI frame A', : IQ no et al.
6:1. '; 6M 1,000 is used to hang the table 1 + 4" and the rod t11ν that hangs 1. In addition, the lower part is 6t / "4L φII! 11:4 i.
;・1 to 11・l・i・(It is written, and 7 in 1 is straight on the scale) 1, each of the stiff GI: IA children 5 and 6 have 1
)j, &nl! J1. j? iS 3 or so hot: l:
, 'Are, this 7R1 oppressor 3d electric fl.
i+! +/C4%j,',cut n The coil wire J [Circular alloy 2 is formed of an alloy having a thermal shape memory effect consisting of nickel titanium or nickel titanium 61c. It is constructed so that when a current is passed through it, it expands and contracts due to the temperature rise due to the air resistance of the alloy itself, thereby performing electrical-mechanical energy transfer.
本実施例においては、コイルにね形状の合金２は、母相
において引張コイルばねとして短縮するように形成し、
低温時のマルテンサイト相において軟かくなるよう形成
されている。したがって、低温時には移動物体１の細巾
Ｗによって伸長して移１１ｉｌＩ物俸１が第１図（ｎ）
にノ）・；すように下位のポジションに位筐ｔする９）
ところで、コイルばれ形状の合金２のフィル抵抗をＲ１
フィル表面積を８１熱放１ａｉｒ係数なλとすれば、コ
イル電流ｉＫ苅するｆｕｒｌ ＩｔＪ上ゲ７ΔＴは、と
して表わされる。In this example, the coil-shaped alloy 2 is formed so as to be shortened in the parent phase as a tension coil spring,
It is formed so that it becomes soft in the martensitic phase at low temperatures. Therefore, when the temperature is low, the moving object 1 expands due to the width W of the moving object 1, and the moving object 1 moves as shown in Fig. 1(n).
9) By the way, the fill resistance of alloy 2 in the coil-flare shape is R1.
If the fill surface area is 81 heat radiation coefficient λ, then the coil current iKfurlItJ is expressed as 7ΔT.
そこで、上式に基づき電流４ｒｈ整器３によって調整し
ながらコイル電流ｉを通流してやれば、コイルはねｔＶ
状金合金２温度がこの合金固有の温度以上に上昇すると
、コイルはね形状合金２はマルテンサイト相゛から母相
へと逆変態を起こし、引張コイルばねとして形状を同役
する。こうして移動物体１を第１図（ｂ）に示す上位の
ポジションに移動させる。尚、通知、を停止すると、自
然冷却或いは強制冷却によってコイルばね形状合金２は
フルテン−１フイト相Ｎ： Ｉ、ｊ：す１１’ｔ ＜グ
６、って第１図（ｎ）に示す下位の状態ｊて・朽１ｆ、
“↓下１’Ｙ、 Ｉ、−ｒｉいく。Therefore, if the coil current i is passed through the coil while adjusting it with the current 4rh regulator 3 based on the above equation, the coil will become tV
When the temperature of the shaped gold alloy 2 rises above the temperature specific to this alloy, the coiled spring shaped alloy 2 undergoes reverse transformation from the martensitic phase to the parent phase, and assumes the same shape as a tension coil spring. In this way, the moving object 1 is moved to the upper position shown in FIG. 1(b). Furthermore, when the notification is stopped, the coil spring shaped alloy 2 undergoes natural cooling or forced cooling to form the full ten-1 foot phase N: I, j: 11't <g6, as shown in FIG. The state of 1f,
“↓Go down 1'Y, I, -ri.
この場合、上記コイルｋＪ’ね形４Ｉ、合金２のノ１チ
状回稈ＩＩ、’ｒに、逆変態の開＊４Ｊ ｉ晶１’Ｕ、
’ １Ｆ’ ｒ”ｖ−がｆつ逆変居の終了湿度Ａｆ点ま
での櫂（用土昇１１（「間はＮ Ｊ１１′ｌがＩ。In this case, in the coil kJ' coil 4I, the notch-shaped circular culm II of alloy 2, 'r, the opening of reverse transformation *4J i crystal 1'U,
'1F'r"v- is f and the end humidity of the reverse change is the paddle up to the point Af.
するコイル電流値ｉを′電流４．１．＋ ｑＨ−、器３
により適切に設定しなからｉｉ） ９りし、てぃけυＪ
ｊ′変化させろことができるため、これによって矛ヌづ
山１勿体１の免ゴｌ’ｆ斤）や移動制！Ｉ９を制御する
こ々ができる１、例えば、コイルＱ」”ね形状合金２を
ｉ’ｉ −Ｎｉ合金で製造し、逆ζψ伸終了湿度Ａｆ＝
ｌ’Ｃに、且つｆＭ；相時のばね一：！？’ｉ（Ｋ＝
８５９ ／ｃｙｎｌＩａｔ １００’Ｃ，）に設定して
おけば、このコイルばね形状合金２に重さＷ＝９０．（
／なる移り１物什１をｔ１１Ｉシ、第１図（ａ）に示す
下位のポジションがｒ−＋ ；’ｉ’（］ ｌン１（ｂ
）に示す−に位のボジシ゛Ｊン唸で８０ ｍｍ上−５を
移ｊｉ・ｊｌさせる場合、コイル電’１６＋’、 ４Ｙ
Ｃの設定による４ツｉｌＱン（二ｊ（は、！１ ””
２．５ Ａでは３ 、Ｉ ｎｔｍ ／ ｓｅ” ＋１ｐ
＝＝３Ａ で６１．５−６ｍｍ、 ／ ”（＋ｉ、＝
３．５Ａでは１１．０ ｍｍ、／ ＳｅＣ＋となり、上
昇移動速度を制御することができる。The coil current value i is calculated as 'current 4.1. + qH-, vessel 3
ii) 9risi, TikeυJ
Since it is possible to change j', this allows for a change in the amount of time (l'f cat) and a movement system! 1, for example, the coil Q"" curved alloy 2 is made of i'i -Ni alloy, and the humidity at the end of reverse ζψ elongation Af=
To l'C, and fM; the spring of the phase:! ? 'i(K=
859/cynlIat 100'C,), the weight W=90. (
/, the lower position shown in FIG. 1(a) is r-+ ;'i'(] ln1(b
) When moving the -5 position 80 mm upward using the - position jig as shown in ), the coil voltage '16+', 4Y
4 ilQn(2j(ha,!1 ””
3 at 2.5 A, Intm/se” +1p
==3A at 61.5-6mm, /”(+i,=
At 3.5A, it becomes 11.0 mm, /SeC+, and the upward movement speed can be controlled.
次に第二の実施例について説明する。Next, a second embodiment will be described.
本実施例のリニア・アクチュエータは、第２図に示すよ
うに、移動物体１をほぼ水平移動させるように構成した
ものである。尚、第２図は駆動前の状態を示している。The linear actuator of this embodiment is configured to move the moving object 1 almost horizontally, as shown in FIG. Note that FIG. 2 shows the state before driving.
上記移動物体１はガイド機構８に沿って移動可能に設け
られた移動ローラ９によって懸架されており、この移動
物体１に爪有けられた端子１０と、支持具４Ａに爪有け
られた端子１１の間にコイルはね形状の合金２が介設葛
れている。The moving object 1 is suspended by a moving roller 9 that is movably provided along a guide mechanism 8, and a terminal 10 is provided with a claw on the moving object 1, and a terminal is provided with a claw on the support 4A. A coil spring-shaped alloy 2 is interposed between the coils 11 and 11.
他方、これらの反対側では移動物体１に爪有けられた別
の端子１２と支持具４Ｂに取付けられた別の端子１３と
の間には通常の引張りコイルばねがバイアスばね１４と
して介設されている。On the other hand, on the opposite side, a normal tension coil spring is interposed as a bias spring 14 between another terminal 12 provided with a claw on the moving object 1 and another terminal 13 attached to the support 4B. ing.
また、上記端子１０と１１には、コイルばね形状合金２
に通流する電流を調整する電流調整器３が接続され、こ
の電流ｈ１１整器３は図示しない電源に接続されている
。In addition, the terminals 10 and 11 are provided with a coil spring shaped alloy 2.
A current regulator 3 is connected to adjust the current flowing through the h11, and this current h11 regulator 3 is connected to a power source (not shown).
また、上記コイルばね影牡合金２は、熱的形状配付；効
果を有する合金により形成さｆｌ、その母相においては
引張コイルにｌ゛ね／−７ｔ、て、また低温時でのマル
テン”リイト相に才５いてｄ軟化ず４）よう形成されて
いる。In addition, the coil spring shadow male alloy 2 is formed of an alloy that has thermal shape distribution; It is formed in such a way that it has a soft texture and no softening.
したがって、コイルばね彫４Ｊ、’イ）金２にｊｌｌ・
流する電流ｉを電流調整器３によってしだいに増加すれ
ば、合金同右の渇１ｕし上に温用上ｈｌずろと、コイル
ばね形状合金２は、マルーフ゛ンザイト相から母相へと
逆変態を起こして形状が回杓し、バイアスばね１４の引
張力に抗して短ｔ￥ｌ’ｊ Ｌ／、移動物体１をガイド
機構８に沿って矢印方向に秋動させる。Therefore, coil spring carving 4J, 'a) gold 2 jll・
If the flowing current i is gradually increased by the current regulator 3, the coil spring-shaped alloy 2 undergoes a reverse transformation from the marufuzite phase to the parent phase as the alloy 1u and hl shift. The shape is rotated, and the moving object 1 is caused to fall in the direction of the arrow along the guide mechanism 8 by a short distance t\l'j L/ against the tensile force of the bias spring 14.
尚、本実施例では通常の引張りコイルばねなバイアスば
ねとして用いたが、このバイアスばねな熱的形状記憶効
果を有する合金にて肘床、シ、このバイアスはねとコイ
ルばね形状合金とを組合せ、スイッチ切換えにより電流
調整器を同（羨に接続しても同等の効果を得ること、が
できる。In this example, a normal tension coil spring was used as the bias spring, but this bias spring was made of an alloy with a thermal shape memory effect, and the elbow base was made of an alloy that has a thermal shape memory effect.This bias spring was combined with a coil spring shaped alloy. The same effect can be obtained even if the current regulator is connected in the same direction by switching the switch.
また、本実施例では、コイルはね形状合金として母相状
態で引張シコイルはねに形成した場合を例に採って説明
したが、これと反対に、母相状態で圧縮コイルばね形状
を記憶させておき、この圧縮力を逆変態応力として利用
することも゛できる。さらに、本実施例では特に説明し
なかったが、先の実施例と同様に電流調整器の電流調整
によって移動物体の変位および移動速度を制御できるこ
とはいうまでもない。In addition, in this example, the case where the coil is formed into a tension coil spring in the matrix state as a spring-shaped alloy was taken as an example, but in contrast to this, the shape of a compression coil spring is memorized in the matrix state. Then, this compressive force can also be used as reverse transformation stress. Further, although not specifically described in this embodiment, it goes without saying that the displacement and moving speed of the moving object can be controlled by adjusting the current of the current regulator, as in the previous embodiment.
以上、説明したように本発明によｉＬば、熱的形状記憶
効果をゼする合金にてコイルはね形状合金を形成し、こ
れに電流を通流し７’ｊときに生ずるこの合金自体の電
気抵抗による温度上昇を活用し、その時の形状回復とこ
れに伴う逆変態応力を利用することによシ、移動物体を
容易に移動でき、その変位および移動速度をも容易に制
御することができ、変位量も大きくとれる。As explained above, according to the present invention, a coil-shaped alloy is formed using an alloy that exhibits a thermal shape memory effect, and when a current is passed through this alloy, the electricity generated in the alloy itself is By utilizing the temperature increase caused by resistance, the shape recovery at that time, and the accompanying reverse transformation stress, a moving object can be easily moved, and its displacement and moving speed can be easily controlled. The amount of displacement can also be large.
また、従来の如く磁気回路構成部品が不要であるため・
これに伴ない杓造が簡単となシ、部品点数および重量の
軽減が図られ、その結果、小形で変位量の大きいリニア
・アクチュエータとすることが可能となった。In addition, because there is no need for magnetic circuit components like in the past,
Along with this, the ladle has been simplified, and the number of parts and weight have been reduced, and as a result, it has become possible to create a small linear actuator with a large displacement.
第１図（ａ）、 （ｂ）ｉ本発明の第一の実施例に係り
、第１１ｍ（ａ）は駆動前の、第１１ス（１））は駆動
後のリニア・アクチュエータを夫々示す肩！１．略図、
第２１ｔｌｒｌ′ｉ第二の実施例に係るリニア・アクチ
ュエータの駆動前の概略図である。
Ｆ４ ｒｒｔ’ｉ中、
１は移動物体、
２は熱的形状記憶効果をイｆするフィルｔ２１゛ね形状
合金、
３は電流調整Ｒ１，
４，４Ａ、４１３は支Ｊ、’ｉ、 Ｊジ１．５、６．１
．０．１１．１２．１３はつ１“ｉａ子、８はガイド機
構、
１４ ｋｉバイｒスばね、で庚）る。
特許出ｐ１１友
日本１１′Ｃ信甫詰公社
代理人
弁理士 光石士部 （イｊ１．！１名）第１
（ａ）
（ｂ）Figures 1(a) and (b)i relate to the first embodiment of the present invention, where 11m(a) represents the linear actuator before driving, and 11th s(1)) represents the linear actuator after driving. ! 1. Schematic diagram,
21 tlrl'i is a schematic diagram of the linear actuator before driving according to the second embodiment; FIG. In F4 rrt'i, 1 is the moving object, 2 is the filter t21'' shape alloy that effects thermal shape memory effect, 3 is the current adjustment R1, 4, 4A, 413 is the support J, 'i, Jji1 .5, 6.1
．． 0.11.12.13 1" ia child, 8 is guide mechanism, 14 ki r bias spring, etc.). Patent issue page 11 Tomo Nippon 11' (Ij1.!1 person) 1st (a) (b)
Claims (1)
の合金にｉｉ＋’＋流、するγ［れ流をふ′４整ず’；
’ Ｔｉｔ、流Ｊ″４４整器らなり、前記Ｉ１１流調整
益による電流、の調整によって移１ｆ１．Ｉ物体の変位
およびぞの移動速度を制御するようＩ／ｊ’ シたこと
も一゛特徴と−Ｊるリニア・アクチュエータ。A coil spring-shaped gold with a shape-memory effect, and a γ [flow that adjusts the flow];
It is also characterized by controlling the displacement of the object and its moving speed by adjusting the current according to the I11 flow adjustment gain. -J linear actuator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15277882A JPS5944959A (en) | 1982-09-03 | 1982-09-03 | Linear actuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15277882A JPS5944959A (en) | 1982-09-03 | 1982-09-03 | Linear actuator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS5944959A true JPS5944959A (en) | 1984-03-13 |
Family
ID=15547934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15277882A Pending JPS5944959A (en) | 1982-09-03 | 1982-09-03 | Linear actuator |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5944959A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7461867B2 (en) * | 2004-02-11 | 2008-12-09 | Wabtec Holding Corp. | Brake hose lifting apparatus |
| US8858452B2 (en) | 2008-04-16 | 2014-10-14 | Omron Healthcare Co., Ltd. | Check valve structure, diaphragm pump, and sphygmomanometer |
| WO2018099565A1 (en) * | 2016-12-01 | 2018-06-07 | Huawei Technologies Co., Ltd. | Antenna tilt drive |
-
1982
- 1982-09-03 JP JP15277882A patent/JPS5944959A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7461867B2 (en) * | 2004-02-11 | 2008-12-09 | Wabtec Holding Corp. | Brake hose lifting apparatus |
| US8858452B2 (en) | 2008-04-16 | 2014-10-14 | Omron Healthcare Co., Ltd. | Check valve structure, diaphragm pump, and sphygmomanometer |
| WO2018099565A1 (en) * | 2016-12-01 | 2018-06-07 | Huawei Technologies Co., Ltd. | Antenna tilt drive |
| CN109997275A (en) * | 2016-12-01 | 2019-07-09 | 华为技术有限公司 | Antenna tilt driver |
| US10862209B2 (en) | 2016-12-01 | 2020-12-08 | Huawei Technologies Co., Ltd. | Antenna tilt drive |
| CN109997275B (en) * | 2016-12-01 | 2021-04-09 | 华为技术有限公司 | Antenna tilt angle driver |
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