Vibration isolator with replaceable springs

Abstract

The invention provides a vibration isolator with replaceable springs. A top bearing device is connected with a first connecting rod and a second connecting rod through connecting pins, wherein the first connecting rod and the second connecting rod are located below the top bearing device. The first connecting rod and the second connecting rod are connected with a third connecting rod and a fourth connecting rod through connecting pins respectively. The third connecting rod and the fourth connecting rod are connected in a crossed mode. A Y-shaped connecting-rod mechanism is formed by the four connecting rods. The other end of the third connecting rod and the other end of the fourth connecting rod are connected with sliding blocks and rolling bearings through lantern ring devices respectively. The rolling bearings and the sliding blocks are placed on a base. Two layers of threaded holes are designed in the periphery of the base. The base and a blocking cover are connected through the eight threaded holes in the circle close to the inner side. The base and a shell are connected through the twelve threaded holes in the circle close to the outer side. An internal structure is completely surrounded by the shell, so that a relatively closed complete vibration isolator system is formed. According to the vibration isolator with the replaceable springs, through the cooperation of the shell and the internal structure, spring replacement can be achieved conveniently, the service life of the vibration isolator is guaranteed, and maintenance of the vibration isolator is facilitated.

Description

technical field [0001] The invention relates to a vibration isolation device. Background technique [0002] With the continuous development of the shipbuilding industry, the vibration of ship power plant and other mechanical equipment has attracted more and more attention. Vibration not only easily causes structural fatigue damage, affects the life of equipment, but also reduces the measurement accuracy of instruments and meters. At the same time, vibration inevitably generates noise, which affects the normal work of operators and even endangers health. The so-called vibration isolation is to connect the vibration source and equipment or other objects with elastic or damping devices, so that most of the energy generated by the vibration source is absorbed by the vibration isolation device to reduce the interference of the vibration source on the equipment. Although the adjustable vibration isolator disclosed in the patent document of CN104696410A can also realize the change...

AI Technical Summary

Problems solved by technology

Although the adjustable vibration isolator disclosed in the patent document of CN104696410A can also realize the change of stiffness, once the spring reaches the service life or is damaged, the whole device must be disassembled to replace the spring, which is very important for the maintenance and maintenance of the vibration isolator. very inconvenient

A passive vibration isolation device suitable for low-frequency vibration disclosed in the patent document of CN103939520A, although it can meet the requirements of high static stiffness and low dynamic stiffness, it is also difficult to replace when the spring fails

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