JPS6110469Y2 - - Google Patents
Info
- Publication number
- JPS6110469Y2 JPS6110469Y2 JP1977070319U JP7031977U JPS6110469Y2 JP S6110469 Y2 JPS6110469 Y2 JP S6110469Y2 JP 1977070319 U JP1977070319 U JP 1977070319U JP 7031977 U JP7031977 U JP 7031977U JP S6110469 Y2 JPS6110469 Y2 JP S6110469Y2
- Authority
- JP
- Japan
- Prior art keywords
- linear motor
- rod
- fixed
- movable iron
- iron core
- 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.)
- Expired
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 16
- 230000005284 excitation Effects 0.000 claims description 9
- 230000009471 action Effects 0.000 description 4
- 238000004804 winding Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Linear Motors (AREA)
Description
【考案の詳細な説明】
本考案は特にロツド形リニアモータにおいて、
ブレーキ保持力をもたらすためのブレーキ装置に
関するものである。[Detailed description of the invention] This invention is particularly applicable to rod-type linear motors.
The present invention relates to a brake device for providing brake holding force.
近年ロツド形リニアモータは複雑な機構なしに
直線運動が可能であることに関連して、自動ド
ア、カーテンその他各種の駆動用アクチエータと
して広く応用されている。しかるにこの種のリニ
アモータは逆相制動に基づいて強力なる制動力が
期待されるにしてもリニアモータ自身ではブレー
キ保持力を有していないことから正確な位置決め
を要求される装置への応用ができない欠点があつ
た。即ち、例えば上下動制御を要求する装置で、
リニアモータ本体を途中にて位置決めして停止さ
せる装置、あるいは直線運動に際して途中いくつ
かの地点で正確なる位置決めを要求する装置には
実用に供し得ない欠点があつた。 In recent years, rod-type linear motors have been widely used as actuators for driving automatic doors, curtains, and various other devices because of their ability to perform linear motion without complicated mechanisms. However, although this type of linear motor is expected to have a strong braking force based on anti-phase braking, the linear motor itself does not have the brake holding force, so it cannot be applied to devices that require accurate positioning. There was a drawback that I couldn't do it. That is, for example, in a device that requires vertical movement control,
Devices that position and stop the linear motor body midway, or devices that require accurate positioning at several points along the way during linear motion, have drawbacks that make them impractical.
本考案の目的はリニアモータの移動磁界発生用
本体にごく簡単な構造をなす機械的に制動力を与
えるブレーキ装置を固定することにより、リニア
モータにブレーキ保持力をもたらし、リニアモー
タの正確なる位置決めを得ることにある。 The purpose of this invention is to provide a brake holding force to the linear motor by fixing a brake device that mechanically provides braking force with a very simple structure to the moving magnetic field generating body of the linear motor, thereby enabling accurate positioning of the linear motor. It's about getting.
以下、図示する実施例について具体的に説明す
る。第１図は本考案に傾るブレーキ装置の断面
図、第２図は第１図のＡ−A′矢視図で、各図に
おいて、１は円筒形リニアモータ本体で、その移
動磁界発生面には若干の空隙G1を介して２次導
体としてのロツド２が配置されている。３はブレ
ーキ装置用支持枠で、ボルト４によつて上記リニ
アモータ本体１の側面に固定されている。５はブ
レーキ用固定鉄心で、ビスＢによつて支持枠３に
固定されている。そしてこの固定鉄心５にはばね
収納用凹嵌部５ａ及びコイル収納用凹嵌部５ｂが
形成され、周囲均等な距離を隔てて４個設けられ
ている。６は可動鉄心で、固定鉄心に形成したば
ね収納用凹嵌部５ａ及びコイル収納用凹嵌部５ｂ
に対向してそれぞればね収納用凹嵌部６ａ及びコ
イル収納用凹嵌部６ｂを形成している。７は摩擦
板で、上記可動鉄心６のロツド２に対向する面に
取付けられている。８はばねで、固定鉄心５、可
動鉄心６に形成した凹嵌部５ａ，６ａに収納さ
れ、可動鉄心６をロツド２に圧接する方向に復元
力を及ぼし、この際固定鉄心５と可動鉄心６とは
空隙G2を有して相対座しているものとする。９
は励磁用コイルで、固定鉄心５及び可動鉄心６そ
れぞれに形成した凹嵌部５ｂ，６ｂによつて構成
される部屋に収納され、当該コイル９の励磁に基
づいて可動鉄心６は固定鉄心に吸着され、これに
よつて摩擦板７はロツド２の表面から離れブレー
キ作用を停止せしめるものである。 The illustrated embodiment will be specifically described below. Fig. 1 is a sectional view of a brake device according to the present invention, and Fig. 2 is a view taken along the line A-A' in Fig. 1. In each figure, 1 is a cylindrical linear motor main body, and its moving magnetic field generation surface. A rod 2 serving as a secondary conductor is placed through a slight gap G1 . Reference numeral 3 denotes a support frame for the brake device, which is fixed to the side surface of the linear motor main body 1 with bolts 4. Reference numeral 5 denotes a fixed iron core for the brake, which is fixed to the support frame 3 with screws B. The fixed core 5 is formed with a spring storage recess 5a and a coil storage recess 5b, and four are provided at equal distances from each other around the periphery. Reference numeral 6 denotes a movable core, which has a spring storage recess 5a and a coil storage recess 5b formed on the fixed core.
A spring accommodating recessed fitting part 6a and a coil accommodating recessed fitting part 6b are formed to face each other. A friction plate 7 is attached to the surface of the movable iron core 6 facing the rod 2. A spring 8 is housed in the recessed fitting parts 5a and 6a formed in the fixed core 5 and the movable core 6, and exerts a restoring force in the direction of pressing the movable core 6 against the rod 2. At this time, the fixed core 5 and the movable core 6 It is assumed that they are located opposite to each other with a gap G 2 between them. 9
is an excitation coil, which is housed in a chamber formed by recessed fitting parts 5b and 6b formed on the fixed core 5 and the movable core 6, respectively, and the movable core 6 is attracted to the fixed core based on the excitation of the coil 9. This causes the friction plate 7 to separate from the surface of the rod 2 and stop the braking action.
上記実施例の構成において、リニアモータ本体
１に移動磁界発生用交流電力を供給すると同時に
ブレーキ用励磁巻線９を励磁すると、まずブレー
キ用固定子鉄心５及び可動鉄心６には第１図に示
すような磁束Φが発生し、これに伴つて可動鉄心
６はばね８の復元力に抗して磁気吸引力が強力に
働き、空隙G2がなくなり、摩擦板７とロツド２
との間に空隙を生じブレーキ作用が停止する。こ
れと同時にリニアモータ本体１とロツド２との相
対位置を変化させるべき推力を得て移動するに至
る。このブレーキの励磁コイル９への電力はリニ
アモータ本体１への電力を共用してもよく、また
リニアモータ本体への電力とは別に独立した電線
によつて供給するようにすることも可能である。
また励磁コイル９への励磁方式としては交流、直
流いずれでも全く同様の作用をもたらすものであ
る。次にブレーキ用励磁巻線９の励磁を解くと固
定鉄心５及び可動鉄心６間の磁気吸引力が消失
し、ばね８の復元力が両鉄心５，６間に動き、こ
れに伴つて可動鉄心６に取付けられている摩擦板
７がロツド２の外周に強力に圧接される。従つ
て、リニアモータ本体１がロツド２の一箇所にお
いて位置決め停止されることになる。 In the configuration of the above embodiment, when the brake excitation winding 9 is excited at the same time as the AC power for generating a moving magnetic field is supplied to the linear motor main body 1, the brake stator core 5 and the movable core 6 are first moved as shown in FIG. A magnetic flux Φ is generated, and along with this, a strong magnetic attraction force acts on the movable iron core 6 against the restoring force of the spring 8, and the gap G 2 disappears, and the friction plate 7 and the rod 2
A gap is created between the two and the brake action stops. At the same time, the linear motor main body 1 and the rod 2 are moved by obtaining a thrust to change their relative positions. The electric power to the excitation coil 9 of this brake may share the electric power to the linear motor main body 1, or it is also possible to supply the electric power to the linear motor main body through an independent electric wire. .
Furthermore, as the excitation method for the excitation coil 9, either alternating current or direct current produces exactly the same effect. Next, when the excitation winding 9 for the brake is de-energized, the magnetic attraction force between the fixed iron core 5 and the movable iron core 6 disappears, the restoring force of the spring 8 moves between the two iron cores 5 and 6, and along with this, the movable iron core A friction plate 7 attached to rod 6 is strongly pressed against the outer periphery of rod 2. Therefore, the linear motor main body 1 is positioned and stopped at one location on the rod 2.
なお、上記実施例においてはリニアモータ用ロ
ツド２が固定され、リニアモータ本体１が可動の
構成を示したが、リニアモータ本体１が固定し、
ロツド２を直線運動させるように構成してもよ
い。 In the above embodiment, the linear motor rod 2 is fixed and the linear motor main body 1 is movable, but the linear motor main body 1 is fixed,
The rod 2 may be configured to move linearly.
以上述べたように本考案に係るリニアモータの
ブレーキ装置はばねの復元力に基づいて可動鉄心
をリニアモータ用ロツドの表面に圧接する力をも
たらし、内蔵の励磁用コイルの励磁に基づいて上
記ばねの復元力とは反対の磁気吸引力を生じ、可
動鉄心を固定鉄心側に移行させてブレーキ作用を
解除するようにしたものである。このような構成
に基づいて、従来、制動力は逆相電力の供給に基
づいて得られるも一定時間継続してブレーキ作用
を維持できない欠点を除去し、任意の位置にてブ
レーキ保持力を有せしめる特長をリニアモータに
持たしめることができる。これによつて従来上下
動制御によりリニアモータ本体の自重を保持する
ブレーキ保持力乃至リニアモータ移動範囲におけ
るいくつかの中間点での正確なる位置決めが可能
となる実利を有する。 As described above, the brake device for a linear motor according to the present invention provides a force that presses the movable iron core against the surface of the linear motor rod based on the restoring force of the spring, and applies a force that presses the movable iron core against the surface of the linear motor rod based on the restoring force of the spring. A magnetic attraction force opposite to the restoring force is generated to move the movable core toward the fixed core and release the brake action. Based on this configuration, the drawback of not being able to maintain braking action for a certain period of time, although braking force was conventionally obtained based on the supply of reverse-phase power, is eliminated, and the brake holding force is provided at any position. This feature can be added to a linear motor. This has the practical advantage of enabling accurate positioning at several intermediate points in the movement range of the linear motor or the brake holding force that maintains the weight of the linear motor body by conventional vertical movement control.
第１図は本考案に係るリニアモータのブレーキ
装置の断面図、第２図は第１図のＡ−A′断面図
である。
１……リニアモータ本体、２……リニアモータ
用ロツド、３……支持枠、５……固定鉄心、６…
…可動鉄心、７……摩擦板、８……ばね、９……
励磁コイル。
FIG. 1 is a sectional view of a brake device for a linear motor according to the present invention, and FIG. 2 is a sectional view taken along line A-A' in FIG. DESCRIPTION OF SYMBOLS 1... Linear motor main body, 2... Linear motor rod, 3... Support frame, 5... Fixed iron core, 6...
...Movable iron core, 7...Friction plate, 8...Spring, 9...
excitation coil.
Claims (1)
支持枠を固定し、当該支持枠の内周に沿つて複数
の固定鉄心を適当間隔を有して設け、これらの固
定鉄心に対向し、リニアモータ用ロツドの径方向
に移動できる可動鉄心を備え、上記可動鉄心に当
該可動鉄心のリニアモータ用ロツドに対向する面
に設けた摩擦板を介してリニアモータ用ロツドに
圧力を及ぼすばねと、可動鉄心への上記ばね力よ
り大の吸引力を及ぼす励磁コイルとを可動鉄心相
互間に設けてなるリニアモータのブレーキ装置。 A support frame is fixed to the side surface of the linear motor body that generates a moving magnetic field, and a plurality of fixed iron cores are provided at appropriate intervals along the inner circumference of the support frame, and facing these fixed iron cores, A movable iron core that can move in the radial direction of the rod is provided, and a spring that applies pressure to the linear motor rod via a friction plate provided on the surface of the movable iron core facing the linear motor rod; A braking device for a linear motor, comprising an excitation coil that exerts an attractive force greater than the above-mentioned spring force, and is provided between movable iron cores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977070319U JPS6110469Y2 (en) | 1977-05-30 | 1977-05-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1977070319U JPS6110469Y2 (en) | 1977-05-30 | 1977-05-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS53163507U JPS53163507U (en) | 1978-12-21 |
| JPS6110469Y2 true JPS6110469Y2 (en) | 1986-04-03 |
Family
ID=28979998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1977070319U Expired JPS6110469Y2 (en) | 1977-05-30 | 1977-05-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6110469Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009017643A (en) * | 2007-07-03 | 2009-01-22 | Nippon Pulse Motor Co Ltd | Braking device of shaft-type linear motor |
-
1977
- 1977-05-30 JP JP1977070319U patent/JPS6110469Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009017643A (en) * | 2007-07-03 | 2009-01-22 | Nippon Pulse Motor Co Ltd | Braking device of shaft-type linear motor |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS53163507U (en) | 1978-12-21 |
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