JPH01156333U - - Google Patents
Info
- Publication number
- JPH01156333U JPH01156333U JP5373588U JP5373588U JPH01156333U JP H01156333 U JPH01156333 U JP H01156333U JP 5373588 U JP5373588 U JP 5373588U JP 5373588 U JP5373588 U JP 5373588U JP H01156333 U JPH01156333 U JP H01156333U
- Authority
- JP
- Japan
- Prior art keywords
- spring
- movable
- electromagnetic coil
- braking
- yoke
- 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
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims 1
- 230000005284 excitation Effects 0.000 claims 1
- 229910052761 rare earth metal Inorganic materials 0.000 claims 1
- 150000002910 rare earth metals Chemical class 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
Description
第１図は本考案の実施例を示す上半部断面図、
第２図は磁気吸引力の特性曲線図、第３図は従来
の例を示す上半部断面図である。
１は回転軸、２はスプライン、３は制動板、４
は制動面、６は可動磁性板、８は制動ばね、１０
は電磁コイル、１１はヨーク、１１ａは外側ヨー
ク、１１ｂは内側ヨーク、１１ｃは可動鉄心、１
２は非磁性体、１３はばね、１４は永久磁石、ｇ
は空隙、Ｆｓは制動ばねの制動力である。
FIG. 1 is a sectional view of the upper half of an embodiment of the present invention;
FIG. 2 is a characteristic curve diagram of magnetic attraction force, and FIG. 3 is a sectional view of the upper half of a conventional example. 1 is the rotating shaft, 2 is the spline, 3 is the brake plate, 4
is a braking surface, 6 is a movable magnetic plate, 8 is a braking spring, 10
is an electromagnetic coil, 11 is a yoke, 11a is an outer yoke, 11b is an inner yoke, 11c is a movable core, 1
2 is a non-magnetic material, 13 is a spring, 14 is a permanent magnet, g
is the air gap, and Fs is the braking force of the braking spring.
Claims (1)
固定部に設けられた制動面と、前記ヨークの磁極
面と制動面の間に配置し回転軸の軸方向にのみ移
動できる可動磁性板と、前記可動磁性板を制動面
に向かつて押圧する制動ばねとをそなえ、電磁コ
イルの励磁によつて可動磁性板を制動ばねに抗し
て吸引移動させる電磁ブレーキ装置において、前
記ヨークに電磁コイルの吸引力と和動する永久磁
石を設け、このヨークの磁路に制動ばねよりも弱
いばねを介して磁気空隙を形成する可動鉄心をそ
なえたことを特徴とする電磁ブレーキ装置。 ２ 永久磁石が、高い保持力と高エネルギー積を
もつた薄い希土類磁石である請求項１記載の電磁
ブレーキ装置。[Claims for Utility Model Registration] 1. An electromagnetic coil, a yoke of this electromagnetic coil,
A braking surface provided on the fixed part, a movable magnetic plate disposed between the magnetic pole surface of the yoke and the braking surface and movable only in the axial direction of the rotating shaft, and a brake that presses the movable magnetic plate toward the braking surface. In an electromagnetic brake device that includes a spring and attracts and moves a movable magnetic plate against a braking spring by excitation of an electromagnetic coil, the yoke is provided with a permanent magnet that harmonizes with the attraction force of the electromagnetic coil. An electromagnetic brake device characterized in that a movable iron core is provided in a magnetic path to form a magnetic gap via a spring weaker than a braking spring. 2. The electromagnetic brake device according to claim 1, wherein the permanent magnet is a thin rare earth magnet with high holding power and high energy product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373588U JPH01156333U (en) | 1988-04-20 | 1988-04-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5373588U JPH01156333U (en) | 1988-04-20 | 1988-04-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01156333U true JPH01156333U (en) | 1989-10-27 |
Family
ID=31279699
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5373588U Pending JPH01156333U (en) | 1988-04-20 | 1988-04-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01156333U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006336830A (en) * | 2005-06-06 | 2006-12-14 | Mitsubishi Electric Corp | Brake device |
-
1988
- 1988-04-20 JP JP5373588U patent/JPH01156333U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006336830A (en) * | 2005-06-06 | 2006-12-14 | Mitsubishi Electric Corp | Brake device |
| JP4585381B2 (en) * | 2005-06-06 | 2010-11-24 | 三菱電機株式会社 | Brake device |
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