Vibration reduction type one-way automobile generator belt pulley bearing super-large torque

Abstract

The vibration reduction type one-way automobile generator belt pulley comprises a belt pulley shell, a core shaft and a one-way clutch, the one-way clutch comprises a driven connecting base, a driving connecting base and a vibration reduction connecting piece, the driving connecting base is connected with a main power transmission piece, and the vibration reduction connecting piece is connected with the core shaft. The vibration reduction connecting piece is provided with a set of vibration reduction inlay strips, one part of each vibration reduction inlay strip is embedded into a tooth groove in the outer circle of the driven connecting base and is in clearance fit with the tooth groove, and the other part of each vibration reduction inlay strip is embedded into a tooth groove in the outer circle of the driving connecting base and is in interference fit with the tooth groove in the outer circle of the driving connecting base. Therefore, the driven connecting seat and the driving connecting seat are axially connected; and the driven connecting seat, and a one-way ratchet, a roller pin retainer, a group of roller pins, a group of reset reeds and a limiting piece which are arranged in the driven connecting seat form a one-way bearing, and the one-way bearing and the core shaft form separation and reunion. According to the invention, soft start and soft brake can be realized, and the technical effects of vibration reduction and bearing of ultra-large input torque are achieved.

Description

technical field [0001] The invention relates to the field of automobile generators, in particular to a one-way belt pulley of an automobile generator, in particular to a shock-absorbing one-way belt pulley of an automobile generator carrying super large torque. Background technique [0002] The car generator overrides the pulley to avoid the reverse current generated during reverse rotation to prevent damage to the electronic devices in the car, improve the life of the generator system, and reduce carbon monoxide emissions. At present, the automobile alternators on the market go beyond the pulley, and most of them adopt two structural modes of one-way bearing and double spring damping transmission. The radial size of the one-way bearing is large, the vibration damping ability is poor, and the noise is large when running at high speed. And rolling bearings have high requirements for bearing cooperation. Generally, after the bearing is installed in the working position, it is...

AI Technical Summary

Problems solved by technology

The one-way bearing has a large radial dimension, poor vibration damping ability, and high noise during high-speed operation

And rolling bearings have high requirements for bearing cooperation. Generally, after the bearing is installed in the working position, it is often caused by poor installation and positioning due to the manufacturing process. Therefore, the bearing is often subjected to excessive load due to shaft fatigue and thermal expansion. damage to

The double-spring damping type overrunning pulley, although using the characteristics of free contraction and expansion of the spring to make the overrunning pulley have a good vibration damping effect, but because the external spring is used as a one-way device and the inner wall of the wheel shell is in surface contact to achieve Bears the shock of the engine's rotational torque

Therefore, in the environment of long-term rapid speed change of the automobile engine, the external spring will drop sharply in the ability to carry the rotational torque of the engine due to strong wear in a short period of time until the product fails.

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