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Bidirectional vibration reduction decoupler

A decoupler and pulley technology, which is applied in the field of two-way damping pulleys for alternators, can solve the problems of high cost and high value of support bearings, and achieve the effects of reliable performance, cost reduction, and production cost reduction

Pending Publication Date: 2021-06-01
NINGBO YANGTONG AUTO PARTS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Also, the cost of two support bearings is worth a fortune

Method used

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Embodiment Construction

[0034] Specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0035] In order to solve the above problems in the prior art, the present invention discloses a two-way vibration damping decoupler, comprising: a pulley hub, the inner surface of the pulley hub forms an accommodation space; a mandrel, a transmission shaft is fixed inside the mandrel; A torsion spring, the first end of the torsion spring has an outer boss in the diameter direction, the outer boss is fixed on the inner wall of the pulley hub, and the second end has an inner boss in the inner diameter direction, the inner boss is fixed on the core shaft outer surface; the torsion spring tube wall has arc-shaped gaps interlaced in the circumferential direction; the inner wall of the first end of the torsion spring has a groove, and the outer wall of the second end has a groove; a left support ring is located at the torque In the groove of the inn...

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Abstract

The invention discloses a bidirectional vibration reduction decoupler. The bidirectional vibration reduction decoupler comprises a belt hub, wherein an accommodating space is formed on the inner surface of the belt hub; a core shaft, wherein a transmission shaft is fixed in the core shaft; a torque spring, wherein the first end of the torque spring is provided with an outer boss in the diameter direction, the outer boss is fixed on the inner wall of the belt hub, the second end of the torque spring is provided with an inner boss in the inner diameter direction, the inner boss is fixed on the outer surface of the core shaft, arc-shaped gaps or spiral gaps which are staggered with one another in the circumferential direction are formed in the tube wall of the torque spring, the inner wall of the first end of the torque spring is provided with a groove, the outer wall of the second end of the torque spring is provided with a groove, a left supporting ring is located in the groove in the inner wall of the first end of the torque spring, a right supporting ring is located in the groove in the outer wall of the second end of the torque spring; and one or more arc-shaped spacers, positioned between the arc-shaped gaps of the torque spring.

Description

technical field [0001] The invention relates to a two-way vibration-damping decoupler with a tubular torsion spring, especially one installed on the drive shaft of an alternator, the outer ring of the pulley fluctuates with the engine speed, but the speed fluctuation of the pulley mandrel is reduced Two-way damping pulleys for alternators. Background technique [0002] The traditional car generator pulley runs synchronously with the speed of the car engine. When the speed of the engine changes, the speed of the generator will also change. Due to the alternate work of the cylinders, the output torque and speed of the engine are uneven (generally in the shape of a sine wave), especially when the engine suddenly accelerates or decelerates, the speed of the generator pulley also changes, but because the generator The moment of inertia of the rotor is large, causing the rotor speed of the generator to be out of sync with the engine speed instantaneously, impact and slippage will...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/123F16H55/36F16D3/02
CPCF16D3/02F16F15/1232F16H55/36F16H2055/366
Inventor 刘增岗
Owner NINGBO YANGTONG AUTO PARTS CO LTD