PROBLEM TO BE SOLVED: To provide a rotational shaft vibration-proof brake device in which an increasing of a twisting vibration of a rotary shaft of a vehicle can be restricted by a simple configuration and a braking against rotation of the rotary shaft can be attained.SOLUTION: This invention shows that it included a magnet 10 fixed to a propeller shaft 5, a rotary bracket 11 and a power generating coil part 15 arranged at a rotary wheel 13 connected to the rotary bracket 11 through a coil spring 12 while being oppositely faced against the magnet 10 to define a clearance between it and the magnet 10. When a twisting vibration occurs at the propeller shaft 5, the magnet 10 and the power generating coil part 15 are relatively moved in a peripheral direction of the propeller shaft 5 to induce an electromotive force at the power generating coil part 15, induction current corresponding to the twisting vibration frequency flows at a stationary coil part 19 and the current is absorbed by a resonance circuit part 22 connected to the stationary coil part 19. In addition, when a vehicle 2 is kept at an engine brake state, a stator setting part 33 sets an eddy current generating part 28 at an inserting position where the eddy current generating part 28 of the stator 27 is inserted into the clearance.
【課題】簡単な構成で車両の回転軸の捩り振動の増大を抑制し、且つ回転軸の回転の制動が可能な回転軸制振制動装置の提供。【解決手段】プロペラシャフト5に固定される磁石10及び回転ブラケット11と、コイルバネ12を介して回転ブラケット11に連結される回転ホイール13に磁石10と相対向して配置されて磁石10との間に空隙を区画する発電コイル部15が固定されている。プロペラシャフト5に捩り振動が発生すると、磁石10と発電コイル部15とがプロペラシャフト5の周方向へ相対移動して発電コイル部15に起電力が誘起され、静止コイル部19に捩じり振動周波数に応じた誘導電流が流れ、静止コイル部19に接続された共振回路部22で吸収される。また、車両2がエンジンブレーキ状態のときは、固定子設定部33が固定子部27の渦電流発生部28が空隙に挿入された挿入位置に渦電流発生部28を設定する。【選択図】図2
ROTATIONAL SHAFT VIBRATION-PROOF BRAKE DEVICE
回転軸制振制動装置
2015-11-24
Patent
Electronic Resource
Japanese
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