Vibration isolation system based on helical springs and suspended leaf springs

Abstract

The invention discloses a vibration isolation system based on helical springs and suspended leaf springs and relates to the technical field of absolute gravity measurement. The system consists of a primary vibration isolation leaf spring system and a secondary vibration isolation helical spring system. The entire primary vibration isolation leaf spring system is used as a mass block of the secondary vibration isolation helical spring system, and thus, the secondary vibration isolation helical spring system frame is stationary relative to the ground, so that the entire primary vibration isolation leaf spring system has a certain vibration isolation effect under the effect of inertia. Compared with the prior art, the invention can reduce the natural frequency of the system, that is, increasethe inherent period of the system, and has an important significance for the research of the vibration isolation system; the system is simple in structure and convenient to operate, forms a secondaryelastic structure by using leaf springs and helical springs, and has an ideal vibration isolation effect; and the system provides good technical support for the development of high-precision absolutegravimeters.

Description

technical field [0001] The invention relates to the technical field of absolute gravity measurement, in particular to a vibration isolation system based on coil springs suspending leaf springs. Background technique [0002] The phenomenon of mechanical structure vibration generally exists in the actual production practice. When the system is excited by an external vibration source, it will vibrate. People use vibration to serve production practice, such as vibration screening, vibration pile sinking, vibration transportation, and sensors designed according to vibration theory, which are often used in industry; however, in the technical fields of national defense technology, industrial machinery, instruments, and instruments, mechanical Vibration often leads to structural failure, reduced measurement accuracy, and shortened service life. For example, the vibration of instruments and instruments will reduce their measurement accuracy; when the spacecraft is launched, the imp...

AI Technical Summary

Problems solved by technology

People use vibration to serve production practice, such as vibration screening, vibration pile sinking, vibration transportation, and sensors designed according to vibration theory, which are often used in industry; however, in the technical fields of national defense technology, industrial machinery, instruments, and instruments, mechanical Vibration often leads to structural failure, reduced measurement accuracy, and shortened service life

For example, the vibration of instruments and instruments will reduce their measurement accuracy; when the spacecraft is launched, the impact load may cause structural damage and failure, etc.

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