A Nonlinear Vibration Absorber with a Segmented Linear Rod

Abstract

The invention relates to a vibration absorbing device and particularly relates to a nonlinear vibration absorber provided with segmented linear rods. The nonlinear vibration absorber provided with thesegmented linear rods comprises a shaft sleeve, a fastening screw, a connecting rod, the segmented linear rods and a mass block; the shaft sleeve is fixedly connected to a rotor through the fasteningscrew; the mass block is of a disc structure; the mass block is provided with a center hole and four circular holes, wherein the four circular holes are different in diameter and are uniformly distributed in the circumference; the mass block is installed on the rotor in a sleeving manner; the mass block is fixedly connected with the shaft sleeve through the connecting rod; the segmented linear rods are four rigid rods which are different in diameter; one end of each segmented linear rod is fixedly connected with the shaft sleeve; and the other end of each segmented linear rod is placed insidethe corresponding circular hole and keeps a clearance with the corresponding circular hole. The nonlinear vibration absorber provided by the invention is simple in structure, restrains vibration frequency band width and achieves a remarkable effect.

Description

technical field [0001] The invention relates to a vibration absorbing device, in particular to a nonlinear vibration absorber with segmented linear rods. Background technique [0002] In the prior art, various high-speed rotating machines are widely used in the national economy. For rotating machinery, the rotor system, its core component, often has problems with excessive vibration during operation, which in turn produces serious problems such as huge noise and bearing damage. The resonance phenomenon is more serious for rotating machinery, especially when The vibration amplitude of rotating machinery will increase sharply when the resonance frequency is over, so it will cause serious harm to the machine, not only affecting the stable operation of the equipment, but even causing catastrophic consequences. [0003] At present, vibration absorption methods include passive suppression and active suppression. The structure of passive vibration absorption is simple, but the fr...

AI Technical Summary

Problems solved by technology

The structure of passive vibration absorption is simple, but the vibration suppression frequency band is narrow because the structural parameters cannot be adjusted; the vibration suppression frequency range of the active vibration absorption method is large, but at the same time it causes problems such as complex structure and reduced reliability under complex working conditions

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