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Dual-mass flywheel

A dual-mass flywheel and quality technology, applied in flywheels and other directions, to achieve the effects of avoiding noise, solving eccentricity problems, and cost advantages

Inactive Publication Date: 2017-05-24
SCHAEFFLER TECH AG & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The problem solved by the invention is the problem of eccentricity and wear or the noise problem caused by too large a gap

Method used

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  • Dual-mass flywheel
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Embodiment Construction

[0022] In order to make the above objects, features and advantages of the present invention more comprehensible, specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings.

[0023] see figure 2 and image 3 , a dual-mass flywheel, including a primary mass 1, a sliding bearing seat 2, and a secondary mass 5, the sliding bearing seat 2 is arranged on the primary mass 1, and the bearing bush 4 that is slidingly fitted with the sliding bearing seat 2 is arranged on the secondary mass 5, the secondary mass 5 is rotatably sleeved on the sliding bearing seat 2, and an elastic element 6 is pressed between the inner peripheral surface of the secondary mass 5 and the outer peripheral surface of the sliding bearing seat 2. The part of the bearing bush 4 located on the inner peripheral surface of the secondary mass 5 is replaced by an elastic element, which can not only absorb radial impact, thereby avoiding noise, but ...

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Abstract

The invention relates to a dual-mass flywheel which comprises a primary mass, a sliding bearing seat arranged on the primary mass, and a secondary mass rotationally arranged on the sliding bearing seat in a sleeving manner. An elastic element is pressed between the inner peripheral face of the secondary mass and the outer peripheral face of the sliding bearing seat. The part, located at the position of the inner peripheral face of the secondary mass, of a bearing bush is replaced with the elastic element. The elastic element can absorb radial impacts so as to avoid noise and also has the eccentricity absorbing capability, and therefore when the eccentricity problem is solved, the radial knocking noise problem caused by abrasion of a sliding bearing or too large clearances can be effectively solved as well.

Description

technical field [0001] The present invention relates to dual mass flywheels. Background technique [0002] During the application of the existing dual-mass flywheel with sliding bearings, the following two typical problems may be encountered: [0003] (1) Due to the misalignment of the transmission input shaft and the engine crankshaft, there is a certain deviation in the radial direction, so that the first-order noise problem caused by eccentricity often occurs on models that use a dual-mass flywheel (while using a rigid driven disc); [0004] (2) Due to the radial wear of the sliding bearing, or the large tolerance of the product itself during the manufacturing process, when the engine is running, see figure 1 , There may be knocking noise between the sliding bearing bush 4' of the secondary mass 5' and the sliding bearing housing 2' of the primary mass 1' in the dual mass flywheel. [0005] For problem (1): the existing solution is to change the rigid driven disk into a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/30
Inventor 颜克志王杰金海忠
Owner SCHAEFFLER TECH AG & CO KG