Linear guide rail-bearing type motion decoupling three-dimensional vibration isolation support

Abstract

The invention relates to a linear guide rail-bearing type motion decoupling three-dimensional vibration isolation support which is characterized by comprising a vertical vibration isolation system anda horizontal vibration isolation system. The vertical vibration isolation system comprises a vertical vibration isolation mechanism, a connecting and fixing mechanism, an instability preventing mechanism, a positioning mechanism and a motion decoupling mechanism. The vertical vibration isolation mechanism is responsible for providing a vertical self-adaptive rigid characteristic needed by vibration isolation. The whole device plays connecting and bearing roles through the connecting and fixing mechanism; the instability preventing mechanism and the positioning mechanism are arranged around anelastic element in the vertical vibration isolation mechanism and are matched to guarantee the stability of the vertical vibration isolation mechanism. The linear guide rail-bearing type motion decoupling three-dimensional vibration isolation support can be used for structures and precision equipment affected by environmental vibration, and can have an effect of isolating seismic oscillation andimpact while isolating the environmental vibration.

Description

technical field [0001] This application belongs to the field of vibration and noise control. Background technique [0002] Vibration isolation technology is a passive vibration control technology. In the past 70 years, vibration isolation technology has been continuously developed, and has been widely researched and applied in the field of vibration control of mechanical equipment and seismic resistance of building structures. The basic principle of vibration isolation is to form a vibration isolation layer with low horizontal stiffness by setting vibration isolation supports and other structures between the vibration-isolated object and the foundation, and reduce the impact of external environmental vibrations and earthquakes on the vibration-isolated object through the filtering effect. impact, or prevent the vibration of the vibration-isolated object from propagating to the ground. [0003] Existing vibration isolation devices cannot meet the requirements of various typ...

AI Technical Summary

Problems solved by technology

The disc springs in series provide negative stiffness, and the coil springs provide positive stiffness. The stiffness of the device is close to zero near the flattened position of the disc springs, so that a lower initial vibration isolation frequency is obtained. However, when the device is actually working, due to the horizontal Relative displacement leads to problems such as lateral instability of coil springs and centroid deviation between disc springs

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