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Unidirectional pulley for AC generator

An alternator and pulley technology, applied in the direction of belt/chain/gear, one-way clutch, mechanical equipment, etc., can solve the complex manufacturing process of the first flange of the hub, cannot eliminate the alternator resonance, and has a long response time interval and other problems, to achieve the effect of simple manufacturing process, simple structure and improved service life

Inactive Publication Date: 2011-01-05
JIANG SU NAN FANG BEARING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The OAD of this structure cannot eliminate the resonance generated during the operation of the alternator. The resonance generated during the operation of the alternator will break the torsion spring, thereby causing the one-way pulley to fail early
The response time interval is long, and the manufacturing process of the first flange of the hub is complicated

Method used

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  • Unidirectional pulley for AC generator
  • Unidirectional pulley for AC generator
  • Unidirectional pulley for AC generator

Examples

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Embodiment Construction

[0024] Such as Figure 1-12 The shown specific embodiment of the one-way pulley for an alternator of the present invention has a pulley 1, a mandrel 2, a torsion spring 3, a friction spring 4, a thrust washer 5 and a cage 6, and the cage 6 is made of plastic , the cage 6 is composed of a roughly annular end portion 6-1 and a tubular spacer portion 6-2, the spacer portion 6-2 has ten shafts uniformly distributed around the circumference for eliminating the resonance generated by the pulley To the long groove 6-2-1; the friction spring 4 is wound on the spacer part 6-2 of the cage, and the torsion spring 3 is set on the mandrel 2 and located in the spacer part 6-2 of the cage 6.

[0025] The friction spring 4 includes a bending part 4-1 and a coil 4-2, and the bending part 4-1 of the friction spring 4 is composed of an axial bending 4-1-1, a circumferential bending 4-1-3 and a radial bending Composed of folding 4-1-2, the axial bending 4-1-1 is connected with the coil 4-2 of th...

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Abstract

The invention relates to a unidirectional pulley, in particular to the unidirectional pulley for an AC generator, which is arranged on a transmission shaft of the AC generator and allows the speed of the pulley to fluctuate relative to the transmission shaft of the AC generator owing to speed fluctuation of an engine. The unidirectional pulley consists of the pulley, a core shaft, a torque spring, a friction spring, a thrust washer and a retainer, wherein, the retainer is made of plastics and composed of a roughly annular end part and a tubular spacer bush part which is provided with an axial elongated slot which is equally distributed circumferentially and used for eliminating resonance generated while the pulley runs; and the friction spring is wound on the spacer bush part of the retainer, and the torque spring is sheathed on the core shaft and positioned in the spacer bush part of the retainer. The unidirectional pulley can eliminate the resonance generated while the AC generator runs and prolong service life of the unidirectional pulley for the AC generator.

Description

technical field [0001] The invention relates to a one-way pulley, in particular to a one-way pulley for an alternator which is installed on the drive shaft of an alternator and allows the speed of the pulley to fluctuate relative to the drive shaft of the alternator due to engine speed fluctuations. Background technique [0002] One-way pulleys for alternators originated in Germany, and are currently widely used in European and American cars, Japanese and Korean cars. Generator one-way 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 functions of the one-way pulley for the alternator are: 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. 1. Avoid reverse imp...

Claims

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Application Information

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IPC IPC(8): F16H55/36F16D41/00F16F15/04
Inventor 薛青周雪刚钱利峰史建伟
Owner JIANG SU NAN FANG BEARING CO LTD
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