JPH02107826A - Electro-magnetic coupling device - Google Patents
Electro-magnetic coupling deviceInfo
- Publication number
- JPH02107826A JPH02107826A JP63260032A JP26003288A JPH02107826A JP H02107826 A JPH02107826 A JP H02107826A JP 63260032 A JP63260032 A JP 63260032A JP 26003288 A JP26003288 A JP 26003288A JP H02107826 A JPH02107826 A JP H02107826A
- Authority
- JP
- Japan
- Prior art keywords
- yoke
- channel
- coupling device
- outer frame
- fixed outer
- 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.)
- Granted
Links
- 230000008878 coupling Effects 0.000 title claims description 17
- 238000010168 coupling process Methods 0.000 title claims description 17
- 238000005859 coupling reaction Methods 0.000 title claims description 17
- 230000005284 excitation Effects 0.000 claims abstract description 9
- 239000012778 molding material Substances 0.000 claims abstract description 6
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 abstract description 7
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000004840 adhesive resin Substances 0.000 abstract description 3
- 229920006223 adhesive resin Polymers 0.000 abstract description 3
- 230000002093 peripheral effect Effects 0.000 abstract 2
- 239000004411 aluminium Substances 0.000 abstract 1
- 230000006835 compression Effects 0.000 description 4
- 238000007906 compression Methods 0.000 description 4
- 238000005266 casting Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000004512 die casting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000010273 cold forging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 210000000689 upper leg Anatomy 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
- Electromagnets (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、固定外枠にヨークが一体形成された電磁連結
装置に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an electromagnetic coupling device in which a yoke is integrally formed with a fixed outer frame.
［従来の技術］
モータのエンドブラケットなどの固定外枠を、アルミダ
イカストやアルミ鋳造などの製造方法で成形する場合、
電磁連結装置のヨークをインサートして固定外枠に鋳込
み一体に形成することが知られている（特開昭５６−１
７４８号公報参照）。[Conventional technology] When forming a fixed outer frame such as a motor end bracket using a manufacturing method such as aluminum die casting or aluminum casting,
It is known that the yoke of an electromagnetic coupling device is inserted and integrally formed by casting into a fixed outer frame (Japanese Patent Laid-Open No. 56-1
(See Publication No. 748).
そして、このような製造方法であると、ヨークの成形後
の加工が不要となり、またヨークを鋳込んだ固定外枠の
寸法が小さくなり、更にまた。電磁連結装置の組立性が
向上されるなどの効果を得ることが知られている。This manufacturing method eliminates the need for post-molding processing of the yoke, reduces the dimensions of the fixed outer frame into which the yoke is cast, and furthermore. It is known that effects such as improved assembly efficiency of the electromagnetic coupling device can be obtained.
［発明が解決しようとする課題］
このような製造方法により組立てられた電磁連結装置は
、アルミニウムからなる固定外枠の機械的強度を上げる
ため、ヨークの底部側面が対向する壁部の軸線方向寸法
を設計上厚肉化している。[Problem to be Solved by the Invention] In order to increase the mechanical strength of the fixed outer frame made of aluminum, the electromagnetic coupling device assembled by such a manufacturing method has the axial dimension of the wall facing the bottom side of the yoke. The walls are thicker by design.
そして、その結果、固定外枠に別体にボルト止めされた
ヨークを有する電磁連結装置に比べ、期待する程ヨーク
を鋳込んだ固定外枠を有する電磁連結装置の軸線方向の
寸法を短縮することができないと言われている。As a result, compared to an electromagnetic coupling device having a yoke separately bolted to a fixed outer frame, the axial dimension of an electromagnetic coupling device having a fixed outer frame into which a yoke is cast can be reduced as expected. It is said that it is not possible.
本発明では、軸線方向の寸法を短縮できた電磁連結装置
を提供する。The present invention provides an electromagnetic coupling device whose axial dimension can be reduced.
［課題を解決するための手段］
このような課題を達成するために、本発明では、ヨーク
を鋳込んだ固定外枠を有する電磁連結装置において、前
記ヨークは、励磁コイルを内設する環状溝を有し、底部
の外側面には円周方向間隔をおいて半径方向に延設され
た溝が形成された環状部材からなり、前記固定外枠を形
成する成形材料を前記ヨークの底部溝内にまで注入し一
体形成した点を特徴とする。[Means for Solving the Problems] In order to achieve such problems, the present invention provides an electromagnetic coupling device having a fixed outer frame in which a yoke is cast, in which the yoke has an annular groove in which an excitation coil is installed. The yoke is made of an annular member having grooves extending in the radial direction at intervals in the circumferential direction on the outer surface of the bottom, and the molding material forming the fixed outer frame is inserted into the bottom groove of the yoke. It is characterized by the fact that it is injected into the body and formed in one piece.
［作 用］
ヨークの底部溝内にまで成形材料を注入し鋳込むことに
より、固定外枠の壁部にはリブが形成されるため、この
壁部の機械的強度が増大し設計上この壁部の軸線方向の
寸法を短縮できる。[Function] By injecting and casting the molding material into the bottom groove of the yoke, ribs are formed on the wall of the fixed outer frame, which increases the mechanical strength of this wall and The axial dimension of the part can be shortened.
［実施例］
第１図と第２図は１本発明の電磁連結装置の実施例とし
て負作動形電磁ブレーキに適用したものであり、第１図
は断面図を、第２図は第１図のヨークの底部外側面図を
示している。[Example] Figures 1 and 2 show an example of the electromagnetic coupling device of the present invention applied to a negative actuation type electromagnetic brake, with Figure 1 being a sectional view and Figure 2 being the same as Figure 1. FIG. 3 shows a bottom external view of the yoke.
この負作動形電磁ブレーキは、固定外枠としてのモータ
のエンドブラケット１に、熱間や冷間鍛造によりプレス
加工されたヨーク２が鋳込まれて一体に形成されている
。ヨーク２は、コイルボビン３に巻かれた励磁コイル４
を接着樹脂により内股固着した環状溝２ａを有し、底部
２ｂに円周方向間隔をおいて半径方向に延設された溝２
Ｃが形成された環状部材であり、かつ外方に延設された
フランジ２ｄと、底部２ｂに穿設された貫通孔２ｅが形
成されている。そして、このような形状からなるヨーク
２を、アルミダイカストなどにインサートしてエンドブ
ラケット１に鋳込み、ヨーク２の底部２ｂに形成された
溝２ｃと貫通孔２ｅ内にまで成形材料であるアルミニウ
ムを注入することにより、エンドブラケット１の壁部１
ａに軸線方向へ突設されたリブ１ｂと、コイルボビン３
が置かれる突起１ｃが形成されている。ここで。This negative-actuation type electromagnetic brake is integrally formed with a yoke 2 press-formed by hot or cold forging into an end bracket 1 of a motor serving as a fixed outer frame. The yoke 2 has an excitation coil 4 wound around a coil bobbin 3.
An annular groove 2a is fixed to the inner thigh with an adhesive resin, and the groove 2 extends in the radial direction at intervals in the circumferential direction on the bottom part 2b.
It is an annular member having a flange 2d extending outward and a through hole 2e bored in the bottom 2b. The yoke 2 having such a shape is then inserted into aluminum die-casting or the like and cast into the end bracket 1, and aluminum, which is a molding material, is injected into the groove 2c and through hole 2e formed in the bottom 2b of the yoke 2. By doing so, the wall portion 1 of the end bracket 1
a rib 1b protruding in the axial direction, and a coil bobbin 3
A protrusion 1c on which a is placed is formed. here.
ヨーク２に形成した溝２ｃは、底部２ｂを環状溝２ａ側
に貫通した溝としたが、設計上リブ１ｂの高さにより溝
２Ｃは、底部２ｂの外側面に形成された凹溝としてもよ
い、また、突起ＩＣは、ヨーク２の底部２ｂとコイルボ
ビン３との間に隙間Ｓを形成し、この隙間Ｓ内に接着樹
脂を注入できるように形成されたものであって、リブ１
ｂ上にこの突起１ｃを一体形成するなど設計は自由であ
る。The groove 2c formed in the yoke 2 is a groove that penetrates the bottom part 2b toward the annular groove 2a side, but depending on the design height of the rib 1b, the groove 2C may be a concave groove formed on the outer surface of the bottom part 2b. Further, the protrusion IC is formed so that a gap S is formed between the bottom part 2b of the yoke 2 and the coil bobbin 3, and adhesive resin can be injected into this gap S.
The design is free, such as integrally forming this protrusion 1c on b.
このように成形されたヨーク２を鋳込んだエンドブラケ
ット１内には、圧縮コイルばね５．アーマチュア６、デ
ィスク７、サイドプレート８を順次組込み、サイドプレ
ート８をカラー９を介して通しボルト１０によりエンド
ブラケット１に固定することで組立てを終える。そして
、カラー９を介してボルト１０により回転を規制させら
れたアーマチュア６が、圧縮コイルばね５の押圧力と励
磁コイル４の磁気吸引力により軸線方向にのみ可動する
構造となる。Inside the end bracket 1 into which the yoke 2 formed in this way is cast, there is a compression coil spring 5. The armature 6, disk 7, and side plate 8 are assembled one after another, and the side plate 8 is fixed to the end bracket 1 via a collar 9 with a through bolt 10 to complete the assembly. The armature 6 whose rotation is regulated by the bolt 10 via the collar 9 is movable only in the axial direction by the pressing force of the compression coil spring 5 and the magnetic attraction force of the excitation coil 4.
更にまた、組立てを終えた負作動形ｆｆｉ磁ブシブレー
キ軸受１１を介してモータ軸１２に支持されるとともに
、モータ軸１２は、ハブ１３によりディスク７と連結さ
れる。Furthermore, it is supported by the motor shaft 12 via the assembled negative actuation type ffi magnetic bush brake bearing 11, and the motor shaft 12 is connected to the disk 7 through the hub 13.
このような構造からなる負作動形電磁ブレーキは、エン
ドブラケット１が他のモータブラケットとともに固定さ
れるので、図のようなアーマチュア６を解放した状態で
は、このアーマチュア６が圧縮コイルばね５の押圧力を
受けてサイドプレート８と共働してディスク７を制動し
モータ軸１２を停止保持している。一方、励磁コイル４
の磁気吸引力により圧縮コイルばね５の押圧力に抗して
アーマチュア６をヨーク２に磁気吸着すると、デイ□ス
ク７の制動は解放され、モータ軸１２を回転させること
ができる。In the negative operation type electromagnetic brake having such a structure, the end bracket 1 is fixed together with other motor brackets, so when the armature 6 is released as shown in the figure, the armature 6 absorbs the pressing force of the compression coil spring 5. In response to this, the disc 7 is braked in cooperation with the side plate 8 to stop and hold the motor shaft 12. On the other hand, excitation coil 4
When the armature 6 is magnetically attracted to the yoke 2 against the pressing force of the compression coil spring 5 by the magnetic attraction force, the brake on the disc 7 is released and the motor shaft 12 can be rotated.
なお１本発明の実施例では負作動形電磁ブレーキを例示
したが１本発明はその他の電磁クラッチや電磁ブレーキ
などの電磁連結装置にも適用できる。In the embodiments of the present invention, a negative actuation type electromagnetic brake has been exemplified, but the present invention can also be applied to other electromagnetic coupling devices such as electromagnetic clutches and electromagnetic brakes.
［効 果コ
本発明では、ヨークを鋳込んだ固定外枠を有する電磁連
結装置において、前記ヨークは、励磁コイルを内設する
環状溝を有し、底部の外側面には円周方向間隔をおいて
半径方向に延設された溝が形成された環状部材からなり
、前記固定外枠を形成する成形材料を前記ヨークの底部
溝内にまで注入し一体形成したので、固定外枠の壁部に
はリブが形成され、設計上この壁部の肉厚を薄くできた
ので、軸線方向の寸法を短縮した電磁連結装置が提供で
きた。また、リブを形成したことにより固定外枠とヨー
クとが凹凸係合をもって一体形成されたので、ヨークに
作用する駆動または制動負荷はリブ部分で吸収され、品
質上より信頼性の高い電磁連結装置が提供できた。[Effects] According to the present invention, in an electromagnetic coupling device having a fixed outer frame in which a yoke is cast, the yoke has an annular groove in which an excitation coil is disposed, and a circumferential interval is formed on the outer surface of the bottom. The fixed outer frame is made of an annular member in which a groove extending in the radial direction is formed, and the molding material for forming the fixed outer frame is injected into the bottom groove of the yoke to integrally form the fixed outer frame. Since a rib is formed on the wall and the wall thickness of this wall can be made thin due to design, an electromagnetic coupling device with a shortened axial dimension can be provided. In addition, by forming the ribs, the fixed outer frame and the yoke are integrally formed with a concave-convex engagement, so the driving or braking load acting on the yoke is absorbed by the ribs, making the electromagnetic coupling device more reliable in terms of quality. could be provided.
第１図は、本発明が適用された電磁連結装置としての負
作動形電磁ブレーキの断面図、第２図は。
第１図のヨークの底部外側面図である。図面において、
１−固定外枠としてのエンドブラケット、１ｂ・・・・
・・リブ、 ｌｃ・・・・・・突起、 ２・・・
・・・ヨーク。
２ｂ・・・・・・底部、 ３・・・・−・コイルボビン
、４・・・・・・励磁コイル。FIG. 1 is a sectional view of a negative actuation type electromagnetic brake as an electromagnetic coupling device to which the present invention is applied, and FIG. 2 is a sectional view. FIG. 2 is a bottom external side view of the yoke of FIG. 1; In the drawing,
1-End bracket as fixed outer frame, 1b...
...Rib, lc...Protrusion, 2...
···yoke. 2b... Bottom, 3... Coil bobbin, 4... Excitation coil.
Claims (1)
て、前記ヨークは、励磁コイルを内設する環状溝を有し
、底部の外側面には円周方向間隔をおいて半径方向に延
設された溝が形成された環状部材からなり、前記固定外
枠を形成する成形材料を前記ヨークの底部溝内にまで注
入し一体形成したことを特徴とする電磁連結装置。In an electromagnetic coupling device having a fixed outer frame in which a yoke is cast, the yoke has an annular groove in which an excitation coil is installed, and an annular groove extending in the radial direction at circumferential intervals on the outer surface of the bottom. 1. An electromagnetic coupling device comprising an annular member having a groove formed therein, and integrally formed by injecting a molding material forming the fixed outer frame into the bottom groove of the yoke.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260032A JPH07103898B2 (en) | 1988-10-14 | 1988-10-14 | Electromagnetic coupling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63260032A JPH07103898B2 (en) | 1988-10-14 | 1988-10-14 | Electromagnetic coupling device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02107826A true JPH02107826A (en) | 1990-04-19 |
| JPH07103898B2 JPH07103898B2 (en) | 1995-11-08 |
Family
ID=17342355
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63260032A Expired - Lifetime JPH07103898B2 (en) | 1988-10-14 | 1988-10-14 | Electromagnetic coupling device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH07103898B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11506241B2 (en) | 2017-10-24 | 2022-11-22 | Ntn Corporation | Wheel bearing device and method for manufacturing said device |
-
1988
- 1988-10-14 JP JP63260032A patent/JPH07103898B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11506241B2 (en) | 2017-10-24 | 2022-11-22 | Ntn Corporation | Wheel bearing device and method for manufacturing said device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH07103898B2 (en) | 1995-11-08 |
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