Intelligent Airbag Vibration Isolation Device

Abstract

The invention relates to a vibration isolation device which uses an airbag vibration isolator as an elastic element and can automatically realize intelligent functions such as inflation, air supply, load distribution, high-precision attitude control, fault diagnosis, and network monitoring. It consists of airbag vibration isolator, controller, displacement sensor, air source and inflation control unit, hub, air circuit and cables, in which the displacement sensor senses the relative displacement between the device and the base, and the pressure sensor and solenoid valve are integrated in the inflation In the control unit, it is used to sense the pressure of the airbag vibration isolator and control the inflation and deflation of the airbag. The controller analyzes and processes the sensor signal, and adjusts the pressure and height of the airbag vibration isolator by controlling the inflation control unit to achieve control The purpose of intelligent functions such as system inflation, air supply, load distribution, high-precision attitude control, fault diagnosis, and network monitoring. The system adopts modular design, simple structure, strong versatility and high reliability, and can be widely used in vibration isolation of ships and other large industrial equipment.

Description

technical field [0001] The invention relates to a low-frequency vibration isolation device using an airbag vibration isolator as an elastic element, which can automatically realize intelligent functions such as inflation, air supply, load distribution, high-precision attitude control, fault diagnosis, and network monitoring. Background technique [0002] Controlling the vibration caused by large power devices and mechanical equipment to meet the standard requirements is the key to the design of mechanical systems in industry, civil use, and especially in the field of ship design. The use of vibration isolation structures is the most effective way to reduce the vibration transmission of power devices and equipment one. The following problems exist in the design of vibration isolation devices using general vibration isolation components: [0003] (1) It is necessary to accurately understand the data such as the spatial arrangement of the power plant and the position of the ce...

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Problems solved by technology

[0003] (1) It is necessary to accurately understand the data such as the spatial arrangement of the power plant and the position of the center of gravity. For simple equipment, these data are easy to obtain, but for large and complex equipment or floating rafts, these data are difficult to obtain. If there is a deviation in the estimation of the position of the center of gravity, it will The load of the selected vibration isolation components deviates from the rated load, reducing the vibration isolation effect of the device, and in severe cases, it will also reduce the safety of the vibration isolation components;

[0004] (2) The design of the vibration isolation device has strict restrictions on the space layout and load of the vibration isolator. Improper selection and installation of the vibration isolator will cause the vibration isolation device to tilt, and in severe cases, it will affect the safety of the vibration-isolated equipment ;

[0005] (3) It is impossible to know the use status of the vibration isolation components in real time. When a vibration isolation component fails, the vibration isolation device will fail, and the isolated equipment will not work normally;

[0006] (4) The vibration isolation element cannot be adjusted adaptively with the load change of the vibration isolation device

[0008] Existing "Automatic Control Device for Carriage Height" (Patent No.: 200510022452.0), "Attitude Maintaining Device for Air Suspension Vehicles" (Patent No.: 02158789.2), "Multi-station Height Control Mechanism for Automobile Suspension" (Patent No.: 200510017195.1 ), "Vehicle Height Adjustment Device for Independent Suspension Air Suspension Vehicle" (Patent No.: 98120646.8), "Displacement Control Air Spring Vibration Isolation Foundation" (Patent No.: 200510009629.3), "Rubber Airbag Vibration Isolation Device" (Patent No. No.: 200420150995.1), they are composed of air springs, height adjusting valves and connecting pipelines, mainly for low-pressure systems, which can only control the height of the device, and the control accuracy is limited, so it cannot automatically determine the center of gravity of the equipment and realize the adjustment of the air spring load. Optimized configuration and real-time monitoring of status, the failure of air springs and their control components cannot be diagnosed and alarmed in real time, and when individual air springs fail, the load cannot be redistributed automatically, so that the system cannot continue to operate normally, and the reliability of the device is improved. less than effective guarantee

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