JPH10184739A - Manual releasing device for unexcited operation type electromagnetic brake/clutch - Google Patents
Manual releasing device for unexcited operation type electromagnetic brake/clutchInfo
- Publication number
- JPH10184739A JPH10184739A JP8356660A JP35666096A JPH10184739A JP H10184739 A JPH10184739 A JP H10184739A JP 8356660 A JP8356660 A JP 8356660A JP 35666096 A JP35666096 A JP 35666096A JP H10184739 A JPH10184739 A JP H10184739A
- Authority
- JP
- Japan
- Prior art keywords
- armature
- bolt
- hub
- clutch
- brake
- 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
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D65/00—Parts or details
- F16D65/14—Actuating mechanisms for brakes; Means for initiating operation at a predetermined position
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16D—COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES
- F16D2127/00—Auxiliary mechanisms
- F16D2127/02—Release mechanisms
- F16D2127/04—Release mechanisms for manual operation
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Braking Arrangements (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は一般に電磁ブレーキ
／クラッチに関し、特に永久磁石を使用する無励磁作動
型電磁ブレーキ／クラッチの手動解放装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates generally to electromagnetic brakes / clutches, and more particularly to a manual release device for a non-excited electromagnetic brake / clutch using a permanent magnet.
【０００２】[0002]
【従来の技術】ブレーキとクラッチは原理的には同一な
ので、 従来の無励磁作動型電磁ブレーキの半体縦断面図
である図６を参照して、 その構成と作動を説明する。こ
の電磁ブレーキ１０のフィールドコア１にコイル２が内
蔵される。一方、永久磁石４を内蔵する円環状のアーマ
チュア３は、一端部をハブ８に座金とボルト６によって
ばね座金７で固定され、他端部を図７に示されるように
ボルト７によってハブ８に固定されて弧形板ばね５によ
って保持される。フィールドコア１は図示しない固定体
に、ハブ８は回転軸にそれぞれ固着される。この電磁ブ
レーキの作用は、永久磁石４の磁束φ1が実線で示すよ
うに反時計回りに形成され、コイル２に通電されると磁
束φ2が時計回りに形成されて、磁束φ1と相殺されてア
ーマチュア３は板ばね４によりハブ側８へ引き寄せら
れ、図６に示すように、アーマチュア３とフィールドコ
ア１との間に隙間ａが生じてアーマチュア３、ハブ８及
び回転軸は一体となって回転する。次にコイル２への通
電が遮断されると、図８（Ａ）に示すように、コイル２
による点線で示される磁束φ2は無くなるので、アーマ
チュア３は、ばね５の弾性力に抗して永久磁石４の磁束
φ1によりフィールドコア１に吸引され、隙間ａはゼロ
となり摩擦力でアーマチュア３、ハブ８及び回転軸はブ
レーキがかかり停止する。クラッチの場合はアーマチュ
ア３とハブ８が回転軸と連結されたままになる。図８
（Ｂ）はコイル静止型クラッチの一例で、アーマチュア
３とフィールドコア１との間にロータ１３が配設され、
このロータ１３が回転軸に固定される点以外は図６〜図
８（Ａ）と同様である。2. Description of the Related Art Since a brake and a clutch are identical in principle, the construction and operation of the conventional non-excited electromagnetic brake will be described with reference to FIG. The coil 2 is built in the field core 1 of the electromagnetic brake 10. On the other hand, the annular armature 3 containing the permanent magnet 4 has one end fixed to the hub 8 by a spring washer 7 by a washer and a bolt 6, and the other end to the hub 8 by a bolt 7 as shown in FIG. It is fixed and held by the arc-shaped leaf spring 5. The field core 1 is fixed to a fixed body (not shown), and the hub 8 is fixed to a rotating shaft. The effect of this electromagnetic brake is that the magnetic flux φ 1 of the permanent magnet 4 is formed counterclockwise as shown by the solid line, and when the coil 2 is energized, the magnetic flux φ 2 is formed clockwise and cancels the magnetic flux φ 1. Then, the armature 3 is drawn toward the hub side 8 by the leaf spring 4, and as shown in FIG. 6, a gap a is formed between the armature 3 and the field core 1, so that the armature 3, the hub 8 and the rotating shaft are integrated. Rotate. Next, when the energization of the coil 2 is cut off, as shown in FIG.
Since the magnetic flux phi 2 is no longer indicated by the dotted line by the armature 3, the magnetic flux phi 1 of the permanent magnet 4 against the elastic force of the spring 5 is attracted to the field core 1, the gap a is the armature 3 by the frictional force becomes zero , The hub 8 and the rotating shaft are braked and stopped. In the case of a clutch, the armature 3 and the hub 8 remain connected to the rotating shaft. FIG.
(B) is an example of a stationary coil type clutch, in which a rotor 13 is disposed between the armature 3 and the field core 1,
Except that the rotor 13 is fixed to a rotating shaft, it is the same as FIGS. 6 to 8A.
【０００３】[0003]
【発明が解決しようとする課題】上記のように停電など
により通電されない時は、常に永久磁石からの磁束のみ
が作用し、強い吸引力でブレーキがかかり、あるいは連
結されたままの状態になるので、例えば、あるシステム
の試運転の場合に必要に応じてブレーキの制動またはク
ラッチとの接続を解放させたい時に、電源が無いと解放
できないという欠点があった。このための手動解放装置
も提案されたが、構造が複雑で製作や取付に多くの工数
を要するという問題があった。As described above, when power is not supplied due to a power failure or the like, only the magnetic flux from the permanent magnet acts at all times, and the brake is applied with a strong attraction force, or the connected state is maintained. For example, when it is desired to release the connection of the brake or the braking of the brake as required in the test operation of a certain system, there is a drawback that the release is not possible without the power supply. A manual release device for this purpose has also been proposed, but has a problem in that the structure is complicated and a lot of man-hours are required for production and installation.
【０００４】[0004]
【課題を解決するための手段】本発明では、下記の３つ
の手段により課題を解決した。 （１）アーマチュアの円周方向で等間隔の位置に複数個
の雌ねじを設け、ハブを貫通してアーマチュアの前記の
雌ねじにねじこまれるボルトを取り付け、ボルト頭とハ
ブの外面との間にコイルばねを挿入し、通常のブレーキ
のＯＮ／ＯＦＦの作動では、従来の板ばねの作用に前記
コイルばねが協働するが、ブレーキまたはクラッチの手
動解放では前記ボルトを回転してアーマチュアをハブ側
へ引き寄せて行う。 （２）従来の板ばねを除去して、前記のボルトにアーマ
チュアの保持も受け持たせる。 （３）前記コイルばねの代わりに皿ばね、その他の弾性
体を使用する。According to the present invention, the problem is solved by the following three means. (1) A plurality of female screws are provided at evenly spaced positions in the circumferential direction of the armature, bolts are inserted through the hub and screwed into the female screws of the armature, and a coil is provided between the bolt head and the outer surface of the hub. When the spring is inserted and the normal brake ON / OFF operation is performed, the coil spring cooperates with the operation of the conventional leaf spring. However, when the brake or clutch is manually released, the bolt is rotated to move the armature to the hub side. Attract it. (2) The conventional leaf spring is removed, and the bolt is also used to hold the armature. (3) A disc spring or another elastic body is used instead of the coil spring.
【０００５】[0005]
【発明の実施の形態】図１は、本発明による無励磁作動
型電磁ブレーキ／クラッチの手動解放装置の第１の実施
の形態を示す半体縦断面図であり、この場合はハブ８’
はプーリを兼ねて、外周にはベルトを掛ける溝が設けら
れている。この実施の形態ではハブ８’はプーリを兼ね
たものとして図示したが、通常のハブではベルトを掛け
る溝部は設けられない。従来のブレーキにおいて、板ば
ね５を取付ける中間位置に複数個の開口８’ａを明け、
この開口８’ａにボルト１０を貫通させて、 アーマチュ
ア３’の円周等間隔位置に設けた複数個の雌ねじ３ａに
ねじ込む。ボルト１０のボルト頭１０ａの内面とハブ
８’の軸方向外表面８’ｂとの間にはコイルばね１１が
配置される。通電のＯＮ／ＯＦＦによるアーマチュア
３’の作動は図６の場合と同様で、図２はコイル２への
通電がＯＦＦとされた場合を示し、ＯＮになるとコイル
ばね１１は弧形板ばね５と協働してアーマチュア３をフ
ィールドコア１から引き離す。図２のブレーキ状態を手
動解放するには、ボルト１０を手などで回転してコイル
ばね１１を圧縮すると、 ばね力が強くなって磁束φ1の
吸引力に打ち勝ち、図１に示す状態になり隙間ａを生じ
てブレーキは解放される。FIG. 1 is a half longitudinal sectional view showing a first embodiment of a manual release device of a non-excitation type electromagnetic brake / clutch according to the present invention. In this case, a hub 8 'is shown.
The groove also serves as a pulley, and a groove for hanging a belt is provided on the outer periphery. In this embodiment, the hub 8 'is illustrated as also serving as a pulley, but a normal hub does not have a groove for hanging a belt. In the conventional brake, a plurality of openings 8'a are opened at an intermediate position where the leaf spring 5 is mounted,
A bolt 10 is passed through the opening 8'a and screwed into a plurality of female screws 3a provided at equal circumferential positions of the armature 3 '. A coil spring 11 is arranged between the inner surface of the bolt head 10a of the bolt 10 and the outer axial surface 8'b of the hub 8 '. The operation of the armature 3 'by turning ON / OFF the energization is the same as in the case of FIG. 6, and FIG. 2 shows the case where the energization to the coil 2 is turned OFF. The armature 3 is separated from the field core 1 in cooperation. To manually release the brake state of FIG. 2, when the compression coil spring 11 by rotating the bolt 10 hand or the like, the spring force becomes stronger overcomes the attraction force of the magnetic flux phi 1, becomes the state shown in FIG. 1 A gap a is created and the brake is released.
【０００６】図３は第２の実施の形態であり、従来の弧
形板ばね５を除去して、コイルばね１１’とボルト１
０’とは手動解放の役目の他に、アーマチュア３’を保
持する役目をも行う。FIG. 3 shows a second embodiment in which the conventional arc-shaped leaf spring 5 is removed, and the coil spring 11 'and the bolt 1 are removed.
0 'performs the function of holding the armature 3' in addition to the function of manual release.
【０００７】図４は第３の実施の形態を示し、第２の実
施の形態のコイルばね１１’の代わりに皿ばね１２を使
用するもので、図５は通電ＯＦＦの場合、図４は図５の
状態からボルト１０”を回転して永久磁石４による吸引
力に抗してブレーキまたはクラッチ制動または連結の状
態から手動解放にした状態を示す。FIG. 4 shows a third embodiment, in which a disc spring 12 is used in place of the coil spring 11 'of the second embodiment. FIG. 5 shows a state in which the bolt 10 ″ is rotated from the state 5 and the brake or clutch is braked or manually released from the connected state against the attraction force of the permanent magnet 4.
【０００８】[0008]
【発明の効果】ハブの円周方向に明けられた複数の穴を
貫通して複数個のボルトの先端をアーマチュアにねじ込
み、 ボルトの頭部の下面とハブの外面との間にコイルば
ねまたは皿ばねを介在させるという簡単な構成にして、
このボルトを締め付ける簡単な作業により、 コイルに通
電されていない状態でもブレーキまたはクラッチが制動
または連結の状態から容易に解放され、しかもボルト、
皿ばねはＪＩＳ規格の標準品を使用でき、コイルばねも
簡単なため極めて安価に製作組立が可能である。According to the present invention, the ends of a plurality of bolts are screwed into the armature through a plurality of holes drilled in the circumferential direction of the hub, and a coil spring or a disc is provided between the lower surface of the head of the bolt and the outer surface of the hub. With a simple configuration with a spring interposed,
The simple work of tightening the bolt allows the brake or clutch to be easily released from the braked or connected state even when the coil is not energized.
As the disc spring, a standard product of JIS standard can be used, and the coil spring is simple, so that it can be manufactured and assembled at extremely low cost.
【図１】本発明による無励磁作動型電磁ブレーキ／クラ
ッチの手動解放装置の第１の実施の形態を示す半体縦断
面図である。FIG. 1 is a half longitudinal sectional view showing a first embodiment of a manual release device for a non-excited operation type electromagnetic brake / clutch according to the present invention.
【図２】図１の手動解放にする前の状態を示す部分図で
ある。FIG. 2 is a partial view showing a state before manual release in FIG. 1 is performed.
【図３】本発明による無励磁作動型電磁ブレーキ／クラ
ッチの手動解放装置の第２の実施の形態を示す半体縦断
面図である。FIG. 3 is a half longitudinal sectional view showing a second embodiment of a manual release device for a non-excitation type electromagnetic brake / clutch according to the present invention.
【図４】本発明による無励磁作動型電磁ブレーキ／クラ
ッチの手動解放装置の第３の実施の形態を示す半体縦断
面図である。FIG. 4 is a half longitudinal sectional view showing a third embodiment of a manual release device for a non-excitation type electromagnetic brake / clutch according to the present invention.
【図５】図４の手動解放にする前の状態を示す部分図で
ある。FIG. 5 is a partial view showing a state before manual release in FIG. 4 is performed.
【図６】従来の無励磁作動型電磁ブレーキ／クラッチの
手動解放装置の半体縦断面図である。FIG. 6 is a half longitudinal sectional view of a conventional manual release device for a non-excited operation type electromagnetic brake / clutch.
【図７】図６に示す板ばねのハブ側取付を示す部分図で
ある。FIG. 7 is a partial view showing mounting of the leaf spring shown in FIG. 6 on the hub side.
【図８】同図（Ａ）は図６のコイルに通電ＯＦＦの場合
を示す半体縦断面図であり、同図（Ｂ）はクラッチの構
成を示す半体縦断面図である。8 (A) is a half longitudinal sectional view showing a case where the coil shown in FIG. 6 is turned off, and FIG. 8 (B) is a half longitudinal sectional view showing a structure of a clutch.
１：フィールドコア ２：コイル ３’：アーマチュア ３ａ：雌ねじ ４：永久磁石 ５：弧形板ばね ８’：ハブ ８’ａ：開口 ８’ｂ：ハブ表面 １０、１０’、１０”：ボルト １０ａ：ボルト頭 １１、１１’：コイルばね １２：皿ばね １３：ロータ ａ：隙間 φ1：磁束1: Field core 2: Coil 3 ': Armature 3a: Female screw 4: Permanent magnet 5: Arc-shaped leaf spring 8': Hub 8'a: Opening 8'b: Hub surface 10, 10 ', 10 ": Bolt 10a: the bolt head 11, 11 ': coil spring 12: disc spring 13: rotor a: clearance phi 1: flux
Claims (4)
られるフィールドコア（１）と、このフィールドコアに
対し同軸に配置され内蔵された永久磁石（４）により、
軸方向に摺動して所定の隙間（ａ）を形成、あるいは閉
止可能にされ一方の端部がボルトと弧形板ばね（５）に
よって保持されたアーマチュア（３’）と、このアーマ
チュア（３’）の軸方向外側に同軸に配置されたハブ
（８）とを含んで成る無励磁作動型電磁ブレーキにおい
て、 前記のハブ（８）に代わり、その円周方向の所定の位置
にボルトを貫通させるための貫通穴（８’ａ）が明けら
れたハブ（８’）と、 この貫通穴に対応する位置に雌ね
じ（３ａ）が切られたアーマチュア（３’）と、前記雌
ねじ（３ａ）にねじ込まれたボルト（１０）と、 このボ
ルト（１０）の頭部の下面と前記ハブの外面との間に配
置され、常時は緩んだ状態で配置された圧縮コイルばね
（１１）とを含んで成り、 前記のボルトをねじ込むことにより前記圧縮コイルばね
が圧縮されて前記アーマチュア（３’）を永久磁石の磁
気吸引力に抗して前記フィールドコア（１）から引き離
し、制動を解除する無励磁作動型電磁ブレーキの手動解
放装置。1. A field core (1) containing a coil (2) and attached to a fixed body, and a built-in permanent magnet (4) arranged coaxially with the field core.
An armature (3 ') which slides in the axial direction to form a predetermined gap (a) or can be closed and one end of which is held by a bolt and an arc-shaped leaf spring (5); And a hub (8) coaxially disposed axially outside of (1), wherein a bolt is penetrated at a predetermined position in the circumferential direction instead of the hub (8). A hub (8 ') having a through hole (8'a) for making it work, an armature (3') having a female screw (3a) cut at a position corresponding to the through hole, and a female screw (3a). And a compression coil spring (11) disposed between the lower surface of the head of the bolt (10) and the outer surface of the hub, and normally disposed in a loose state. By screwing the bolt, the compression coil Spring against the armature is compressed to (3 ') to the magnetic attraction force of the permanent magnet away from the field core (1), manual release device non-excitation type electromagnetic brake to release the brake.
て、前記フィールドコア（１）とアーマチュア（３')と
の間に回転軸に固定されたロータ（１３）が配置されて
電磁クラッチとされ、連結が解除される無励磁作動型電
磁クラッチの手動解放装置。2. The electromagnetic brake according to claim 1, wherein a rotor (13) fixed to a rotating shaft is disposed between said field core (1) and the armature (3 ') to form an electromagnetic clutch. A manual release device for a non-excitation actuated electromagnetic clutch that is disconnected.
イルばね（１１’）とボルト（１０’）とがアーマチュ
ア（３’）を保持し、 ボルト（１０’）をねじ込むこと
により、通電が遮断された状態でフィールドコア（１）
に接触しているアーマチュア（３’）が接触から外さ
れ、制動またはクラッチの連結が解除されることを特徴
とする請求項１または２に記載の無励磁作動型電磁ブレ
ーキ／クラッチの手動解放装置。3. The conventional arc-shaped leaf spring (5) is removed, the coil spring (11 ') and the bolt (10') hold the armature (3 '), and the bolt (10') is screwed in. , Field core (1) in a state where power is cut off
The manual release device of the non-excited electromagnetic brake / clutch according to claim 1 or 2, wherein the armature (3 ') in contact with the motor is released from contact and the braking or clutch is released. .
されることを特徴とする請求項１または２に記載の無励
磁作動型電磁ブレーキ／クラッチの手動解放装置。4. The manual release device for a non-excited operation type electromagnetic brake / clutch according to claim 1, wherein a disc spring is used in place of the coil spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8356660A JPH10184739A (en) | 1996-12-27 | 1996-12-27 | Manual releasing device for unexcited operation type electromagnetic brake/clutch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8356660A JPH10184739A (en) | 1996-12-27 | 1996-12-27 | Manual releasing device for unexcited operation type electromagnetic brake/clutch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH10184739A true JPH10184739A (en) | 1998-07-14 |
Family
ID=18450148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8356660A Pending JPH10184739A (en) | 1996-12-27 | 1996-12-27 | Manual releasing device for unexcited operation type electromagnetic brake/clutch |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH10184739A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8151950B2 (en) * | 2006-04-17 | 2012-04-10 | Otis Elevator Company | Permanent magnet elevator disk brake |
| CN105712232A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Quick opening device and method for crane brake |
| CN106594126A (en) * | 2016-12-30 | 2017-04-26 | 安徽创新电磁离合器有限公司 | Electromagnetic brake with self-locking function |
-
1996
- 1996-12-27 JP JP8356660A patent/JPH10184739A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8151950B2 (en) * | 2006-04-17 | 2012-04-10 | Otis Elevator Company | Permanent magnet elevator disk brake |
| CN105712232A (en) * | 2014-12-01 | 2016-06-29 | 鞍钢股份有限公司 | Quick opening device and method for crane brake |
| CN106594126A (en) * | 2016-12-30 | 2017-04-26 | 安徽创新电磁离合器有限公司 | Electromagnetic brake with self-locking function |
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