Automatic air gap adjusting assembly for electromagnetic clutch and/or brake apparatus |
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| 申请号 | JP32124189 | 申请日 | 1989-12-11 | 公开(公告)号 | JPH039120A | 公开(公告)日 | 1991-01-17 |
| 申请人 | Chr Mayr Gmbh & Co Kg; | 发明人 | HARARUTO BAISU; BINFURIITO HEEFURAA; KAARU SHIRINKU; GIYUNTAA KURINGAA; | ||||
| 摘要 | PURPOSE: To facilitate an air-gap adjustment when a wearing coat abrades down by interposing a compression spring means between an adjustment ring and that part of an entrainment ring which connects to or butts against the back of the adjustment ring. CONSTITUTION: A brake unit holds an air gap (a) defined between its coil support member 1 and an armature plate 2, and while being not operated is kept not working by a compression spring 6 that works between an entrainment ring 5 connected to the armature plate 2 and an adjustment ring 4. On energization, a magnetic coil placed in the coil support member 1 attracts the armature plate 2 against the compression spring 6 to render the air gap (a) zero, whereon torque is transmitted from a driveshaft 3 to be decelerated to the support member 1, which is fixed to an engine wall or the like, via a flange 10, a cylindrical screw 7, an annular spring 8 and the armature plate 2, and the driveshaft 3 is decelerated. In conformance to wear, O-rings 18 hold the adjustment ring 4 at a corresponding new position, and the compression spring 6 returns it continuously to hold the air gap (a) constant. COPYRIGHT: (C)1991,JPO |
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