Large-load low-frequency air bag vibration isolator for ship

Abstract

The invention discloses a large-load low-frequency air bag vibration isolator for a ship, which comprises a fixed base and a mounting bottom plate, a limiting box is mounted on the top face of the fixed base, a first vibration isolation air bag is mounted in an inner cavity of the limiting box, the mounting bottom plate is connected to the top end of the first vibration isolation air bag, and a plurality of piston cylinders are symmetrically mounted on the top face of the fixed base; a pressure adjusting piston is installed in an inner cavity of each piston cylinder, the top end of each pressure adjusting piston is connected with a pressure adjusting plate, fixing plates are symmetrically installed on the top faces of the side faces of the two sides of the limiting box, nuts are installed in the centers of the fixing plates, pressure adjusting threaded rods are engaged with the interiors of the nuts, and the bottom ends of the pressure adjusting threaded rods are installed in the centers of the top faces of the pressure adjusting plates through connecting bases; and the inner cavities of the piston cylinders communicate with an inner cavity of the first vibration isolation air bag through first communicating pipes. The large-load low-frequency air bag vibration isolator has the advantages that on the premise that external tools are not used, a user can conveniently and rapidly adjust the air pressure in the air bag, and therefore convenience is brought to air bag air pressure adjustment of the large-load low-frequency air bag vibration isolator for the ship.

Description

technical field [0001] The invention relates to the technical field of airbag vibration isolators, in particular to a large-load low-frequency airbag vibration isolator for ships. Background technique [0002] The vibration isolator is an elastic element connecting the equipment and the foundation to reduce and eliminate the vibration force transmitted from the equipment to the foundation and the vibration transmitted from the foundation to the equipment, including metal rubber vibration isolators, steel spring vibration isolators and airbag vibration isolation Nowadays, most high-performance ships use a large-load low-frequency airbag vibration isolator for ships in order to reduce the impact vibration of the installed equipment on the installation base and even the hull during navigation. [0003] The air pressure inside the air bag of a traditional large-load low-frequency air bag vibration isolator for ships will increase or decrease significantly with the drastic change...

AI Technical Summary

Problems solved by technology

[0003] The air pressure inside the air bag of a traditional large-load low-frequency air bag vibration isolator for ships will increase or decrease significantly with the drastic changes in the external temperature. The pump pressurizes the air or opens the air valve to adjust the air release, and the user needs to carry the air pump and other tools. The operation is very cumbersome, which brings inconvenience to the air bag air pressure adjustment of a large-load low-frequency air bag vibration isolator for ships. In addition, Although a traditional large-load low-frequency airbag vibration isolator for ships has a good vibration isolation effect during use, because there is no limit around the airbag when it is under pressure, it is easy to cause the installation equipment to shake and shift in the horizontal direction. To a certain extent, the stability of the installation equipment is reduced, and the service life of the installation equipment is reduced, thereby reducing the use effect of a large-load low-frequency airbag vibration isolator for ships.

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