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Transmission shaft dynamic vibration absorber

A technology of dynamic vibration absorber and transmission shaft, applied in the functional characteristics of spring/shock absorber, design characteristics of spring/shock absorber, spring/shock absorber, etc. The effect of easy adjustment and wide application prospect

Active Publication Date: 2021-03-30
SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, a dynamic vibration absorber in the prior art can only be matched with one transmission shaft, and different dynamic vibration absorbers need to be redesigned and manufactured for different models, which makes the universality of the dynamic vibration absorber poor.

Method used

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  • Transmission shaft dynamic vibration absorber
  • Transmission shaft dynamic vibration absorber
  • Transmission shaft dynamic vibration absorber

Examples

Experimental program
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Effect test

Embodiment Construction

[0026] refer to figure 1 as shown, figure 1 Disclosed is an exploded structure diagram of a drive shaft dynamic vibration absorber according to an embodiment of the present invention. The transmission shaft dynamic shock absorber includes: an outer cylinder 2, an inner cylinder 3, a rubber cylinder 4, a stiffness adjustment mechanism and a counterweight mechanism.

[0027] The inner cylinder 3 is located inside the outer cylinder 2, and the inner cylinder 3 clamps the transmission shaft. figure 2 Disclosed is a structural diagram of an inner cylinder in a drive shaft dynamic shock absorber according to an embodiment of the present invention. combine figure 1 with figure 2 There is a mounting seam 17 parallel to its axis on the inner cylinder 3, and there are clamping screw holes 18 on both sides of the mounting seam 17, and the clamping screw 11 is screwed into the clamping screw hole 18, so that the inner cylinder 3 can clamp the transmission shaft. Loosen the clamping...

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Abstract

The invention discloses a dynamic vibration absorber for a transmission shaft. The dynamic vibration absorber comprises an outer cylinder, an inner cylinder, a rubber cylinder, a rigidity adjusting mechanism and a balance weight mechanism, wherein the inner cylinder is located on the inner side of the outer cylinder and clamps a transmission shaft, the inner wall of the rubber cylinder and the inner cylinder are vulcanized together, the inner side end of the rigidity adjusting mechanism and the outer wall of the rubber cylinder are vulcanized together, the rigidity adjusting mechanism is installed on the outer cylinder, the rigidity adjusting mechanism can press the rubber cylinder to enable the rubber cylinder to deform, the radial rigidity of the rubber cylinder is changed through radialdeformation of the rubber cylinder to enable the radial rigidity of the transmission shaft dynamic vibration absorber to be changed, and the balance weight mechanism is installed on the outer cylinder and adjusts the mass of the transmission shaft dynamic vibration absorber. According to the transmission shaft dynamic vibration absorber, the rigidity of the dynamic vibration absorber is adjustedby applying the radial pre-compression amount to rubber, the mass of the dynamic vibration absorber is adjusted by changing the number of balance weight rings, and therefore the frequency of the dynamic vibration absorber is changed.

Description

technical field [0001] The invention relates to the field of auto parts, more specifically, to a vibration damping part of a transmission shaft. Background technique [0002] Dynamic vibration absorbers are widely used in the field of vibration reduction and noise reduction, which can attenuate the vibration amplitude of mechanical structures at specific frequencies and improve the ride comfort of the vehicle. For cars with front-engine and front-wheel drive, the transmission shaft is generally a solid and slender shaft structure. Due to the excitation of the engine, the transmission shaft will resonate at a specific frequency during the rotation process, resulting in abnormally large vibration and noise in the car, affecting The ride comfort of the car. In order to eliminate the resonance of the transmission shaft, a dynamic vibration absorber is generally used to reduce the vibration amplitude of the transmission shaft at a specific frequency. [0003] For the traditiona...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16F1/387
CPCF16F1/387F16F1/3873F16F2228/066F16F2230/18
Inventor 刘国政张俊张伟凌雯熊云亮
Owner SAIC VOLKSWAGEN AUTOMOTIVE CO LTD
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