JPH0182337U - - Google Patents
Info
- Publication number
- JPH0182337U JPH0182337U JP1987177416U JP17741687U JPH0182337U JP H0182337 U JPH0182337 U JP H0182337U JP 1987177416 U JP1987177416 U JP 1987177416U JP 17741687 U JP17741687 U JP 17741687U JP H0182337 U JPH0182337 U JP H0182337U
- Authority
- JP
- Japan
- Prior art keywords
- brake
- field core
- drum
- armature
- peripheral surface
- 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
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000001179 sorption measurement Methods 0.000 description 1
Landscapes
- Braking Arrangements (AREA)
Description
第１図ないし第４図は本考案に係る電磁ドラム
ブレーキの実施例を示し、第１図はその一部破断
正面図、第２図は第１図のＡＡ断面図、第３図は
第１図の矢印Ｂ方向から見たフイールドコアの正
面図、第４図は制動解放装置の拡大縦断面図であ
る。
１……ブレーキカバー、１ｂ……円筒部、１ｄ
……内周面、２……モータ軸、５……ブレーキド
ラム、６……電磁ドラムブレーキ、７……フイー
ルドコア、７ａ……磁気吸着面、７ｂ……背面、
８……電磁コイル、１１……ブレーキシユー、１
２……アーマチユア、１５……制動ばね、Ｇ……
アーマチユアの平面と磁気吸着面との間隙。
1 to 4 show an embodiment of the electromagnetic drum brake according to the present invention, FIG. 1 is a partially cutaway front view thereof, FIG. 2 is a sectional view taken along line AA in FIG. 1, and FIG. FIG. 4 is a front view of the field core seen from the direction of arrow B in the figure, and an enlarged longitudinal sectional view of the brake release device. 1...Brake cover, 1b...Cylindrical part, 1d
... Inner peripheral surface, 2 ... Motor shaft, 5 ... Brake drum, 6 ... Electromagnetic drum brake, 7 ... Field core, 7a ... Magnetic adsorption surface, 7b ... Back side,
8... Electromagnetic coil, 11... Brake shoe, 1
2... Armature, 15... Braking spring, G...
The gap between the plane of the armature and the magnetic attraction surface.
Claims (1)
内周面に支持されて正面を磁気吸着面にしたフイ
ールドコアと、このフイールドコアとモータ軸側
のブレーキドラムとの間に位置してブレーキドラ
ムの半径方向へ移動自在に支持されブレーキドラ
ムの周面に添接するブレーキシユーを備えたアー
マチユアと、このアーマチユアを前記ブレーキド
ラム側に付勢してその平面と前記磁気吸着面との
間に所定の間隙を形成させる制動ばねとを備えた
電磁ドラムブレーキにおいて、前記フイールドコ
アの反アーマチユア側背面を、前記ブレーキカバ
ーに設けた円筒部の内周面と同形状に形成し、前
記ブレーキカバーへのフイールドコアの非固定時
に、前記ブレーキシユーをブレーキドラムの周面
に圧接させる前記制動ばねの弾発力の反力で前記
フイールドコア背面を前記円筒部内周面に圧接さ
せるように構成したことを特徴とする電磁ドラム
ブレーキ。 A field core containing an electromagnetic coil and supported by the inner circumferential surface of the brake cover on the motor side and having a magnetic attraction surface on the front side, and a field core located between this field core and the brake drum on the motor shaft side in the radial direction of the brake drum. an armature equipped with a brake shoe that is movably supported and attached to the circumferential surface of a brake drum; and the armature is biased toward the brake drum to create a predetermined gap between the plane thereof and the magnetic attraction surface. In the electromagnetic drum brake, the back surface of the field core on the side opposite to the armature is formed in the same shape as the inner peripheral surface of the cylindrical portion provided on the brake cover, and the field core is formed on the brake cover. When the brake shoe is not fixed, the rear surface of the field core is pressed against the inner peripheral surface of the cylindrical portion by the reaction force of the elastic force of the braking spring that presses the brake shoe against the peripheral surface of the brake drum. Electromagnetic drum brake.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177416U JPH0182337U (en) | 1987-11-20 | 1987-11-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987177416U JPH0182337U (en) | 1987-11-20 | 1987-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0182337U true JPH0182337U (en) | 1989-06-01 |
Family
ID=31469080
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987177416U Pending JPH0182337U (en) | 1987-11-20 | 1987-11-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0182337U (en) |
-
1987
- 1987-11-20 JP JP1987177416U patent/JPH0182337U/ja active Pending