Composite retainer for decoupler pulley and decoupler pulley

Abstract

The invention relates to a composite retainer for a decoupler pulley and the decoupler pulley. The composite retainer is assembled on a central spindle and is used for accommodating a torque spring and a friction spring; and the composite retainer comprises a plastic mounting piece and a metal gasket having a reinforcing function, wherein the plastic mounting piece is circular generally, and is provided with a mounting end and a reinforcing end; the mounting end of the plastic mounting piece is used for mounting the torque spring and the friction spring; and the reinforcing end of the plastic mounting piece is provided with the metal gasket of which the shape is matched with that of the plastic mounting piece. The composite retainer for the decoupler pulley is simple in structure and easy to manufacture; the metal gasket and the plastic mounting piece are compounded to form the composite retainer; a metal gasket forming process is simple; the plastic mounting piece is formed through injection molding; a process is simple; the total manufacturing cost is low; and the strength is high. The decoupler pulley provided with the composite retainer is simple in structure, low in manufacturing cost, high in strength and reliable in assembly.

Description

technical field [0001] The invention relates to the technical field of decoupler pulleys, in particular to a composite cage for a decoupler pulley and the decoupler pulley. Background technique [0002] The decoupler pulleys for alternators originated in Germany, and are currently widely used in European and American cars, Japanese and Korean cars. Generator decoupler pulleys include OAP / OAD / OWC, etc. according to different structures. The international manufacturers of such pulleys are mainly INA, Leiden, Gates, NSK, NTN, KOYO, etc. The main function of the pulley of the decoupler for the alternator is: 1. Reduce the tension fluctuation of the front-end gear train and improve the life of each component of the front-end gear train; 2. Reduce the speed fluctuation of the front-end gear train and reduce the noise of the front-end gear train; 3. Avoid reverse impact and effectively protect the generator; 4. Reduce energy consumption caused by generator reversal and save energy...

AI Technical Summary

Problems solved by technology

For example, China Patent Application No. 201010273852.X discloses a cage made of iron. This kind of cage made of iron is expensive to manufacture. During processing, it needs to be machined after the rough material is completed by casting steel technology, which is laborious and laborious. , higher processing cost

For example, Chinese Patent Application No. 201010273861.9 discloses that a cage is a plastic cage, and plastic is used instead of iron. Although the production cost is low and the processing is convenient, the strength is not enough and the service life is low.

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