Magnetic damping belt pulley

A pulley and magnetic technology, applied in belts/chains/gears, components with teeth, hoisting devices, etc., can solve the problems of poor stability, low resistance of vibration-absorbing pulleys, and low life expectancy, and achieve excellent performance and reduce crankshaft. Torsional vibration, effect of reducing crankshaft stress levels
CN103148199AActive Publication Date: 2013-06-12HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST +2
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
HANGZHOU BRANCH ZHEJIANG GEELY AUTOMOBILE RES INST
Publication Date
2013-06-12

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Abstract

The invention discloses a magnetic damping belt pulley. The magnetic damping belt pulley comprises a belt pulley and a hub sleeved in the belt pulley, wherein the belt pulley and the hub can rotate relative to each other; a first magnet and a second magnet are arranged between the belt pulley and the hub; when the hub rotates, the first magnet is pushed to rotate at first; then the first magnet pushes the second magnet to rotate through the action of a repulsive force; and the second magnet further pushes the belt pulley to rotate, equivalently, the torque of the belt pulley or the hub is conveyed via the magnetic effect between the magnets. Therefore, the problems of small resistance, poor stability and short service life of a damping belt pulley at present are solved.
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Description

technical field

[0001] The invention relates to automobile transmission components, in particular to a magnetic force damping belt pulley. Background technique

[0002] When the engine is working, the crankshaft is under the action of periodically changing torque, and the phenomenon of periodic relative torsion between the crankshafts is called torsional vibration, referred to as torsional vibration. The vibration of the engine is related to its life, work efficiency and impact on the surrounding environment. The vibration of the crankshaft system is an important factor that causes the vibration of the internal combustion engine. For this reason, the engine is equipped with a vibration-absorbing pulley. On the one hand, it can reduce the torsional vibration of the crankshaft, reduce the stress level of the crankshaft, and improve the fatigue life of the crankshaft; in addition, it can transmit torque, attenuate torque fluctuations, and ease the impact load on the front-end ...

Claims

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