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Engine crankshaft composite shock absorber

An engine and shock absorber technology, applied in elastic shock absorbers and other directions, can solve the problem of incapable of compound vibration and vibration reduction, and achieve the effects of reducing bending and torsional amplitudes, improving NVH and ride comfort.

Inactive Publication Date: 2013-08-28
CHERY AUTOMOBILE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The shock absorber of the existing engine crankshaft mostly only considers torsional vibration, and cannot effectively damp the combined vibration of bending and torsional vibration

Method used

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  • Engine crankshaft composite shock absorber
  • Engine crankshaft composite shock absorber

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Embodiment Construction

[0015] The specific implementation manner of the present invention will be described in further detail below by describing the embodiments with reference to the accompanying drawings.

[0016] like figure 1 and figure 2 As shown, a compound damper for an engine crankshaft, which combines a torsional damping unit and a bending damping unit, so that the entire engine crankshaft can The bending and torsional amplitudes are simultaneously reduced. The bending damping unit is arranged on the inner circumference of the hub 1, and the torsional damping unit is arranged on the outer circumference of the hub 1. The hub 1 is connected to the end of the crankshaft of the engine by bolts.

[0017] Wherein, the bending damping unit includes an inertia ring 5 and a rubber ring 2, and the rubber ring 2 is arranged between the wheel hub 1 and the inertia ring 5, that is, the inertia ring and the wheel hub are fixed together by rubber ring vulcanization.

[0018] The torsional vibration dam...

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Abstract

The invention discloses an engine crankshaft composite shock absorber comprising a wheel hub which is connected with an engine crankshaft, a curve shock absorbing unit is arranged on the inner circumference of the wheel hub, and a torsion shock absorbing unit is arranged on the outer circumference of the wheel hub. Due to the fact that the torsion shock absorbing unit and the curve shock absorbing unit are composited together, curve amplitude and torsion amplitude of the crankshaft of a whole engine are made to be reduced at the same time through combined effects of the curve shock absorbing unit and the torsion shock absorbing unit, and therefore NVH and riding comfort of a whole vehicle are improved.

Description

technical field [0001] The invention relates to the technical field of engine vibration reduction, in particular to a composite vibration absorber for an engine crankshaft. Background technique [0002] The vibration of the engine crankshaft is the main source of vibration and noise of the engine structure and power plant, and the torsional vibration is the earliest and most harmful vibration problem in the internal combustion engine. However, the vibration of the engine crankshaft is basically a three-dimensional bending and torsional vibration mode. , they may exist alone or in combination. [0003] The shock absorber of the existing engine crankshaft mostly only considers the torsional vibration, and cannot effectively damp the composite vibration of bending and torsional vibration. Contents of the invention [0004] Aiming at the deficiencies in the prior art, the technical problem to be solved by the present invention is to provide a compound shock absorber for an en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F7/12
Inventor 王超
Owner CHERY AUTOMOBILE CO LTD
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