Air spring vibration isolator based on magnetic control damping

Abstract

The invention discloses an air spring vibration isolator based on magnetic control damping. The air spring vibration isolator comprises an air spring. The air spring comprises a first end sealing plate, a second end sealing plate and a curved bag. The upper end of the curved bag is fixedly connected with the first end sealing plate, and the lower end of the curved bag is fixedly connected with thesecond end sealing plate. A closed sealed cavity is formed by the first end sealing plate, the curved bag and the second end sealing plate. An inflation and deflation device is arranged on the air spring. The sealed cavity in the curved bag is inflated with compressed air through the inflation and deflation device. A magnetic control damping device is arranged in the curved bag and comprises a work cylinder and a piston located in the work cylinder, the work cylinder is filled with magneto-rheological materials, and an excitation coil is wound around a piston. The piston is fixedly connectedwith a piston rod, the other end of the piston rod is fixedly connected with the first end sealing plate after stretching out of the work cylinder from the exterior of an end cover at the upper end ofthe work cylinder, and the lower end of the work cylinder is fixedly connected with the second end sealing plate. By means of the air spring vibration isolator, vibration isolator damping parameter schemes can be changed in real time to improve the low-frequency vibration isolating performance of the air spring.

Description

technical field [0001] The invention belongs to the technical field of vibration isolators, in particular to an air spring vibration isolator based on magnetic control damping. Background technique [0002] At the beginning of the 20th century, engineers and technicians had already begun to apply air springs to the field of vibration isolation. As early as 1914, the first car equipped with air spring vibration isolators appeared, but due to manufacturing level problems, it was not until the middle of the 20th century. , the air spring vibration isolator has moved towards the application field on a large scale. At present, air spring vibration isolators have been widely used in many fields such as automobile suspension, seat suspension, vibration isolation of precision instruments and equipment, aviation, and ship vibration isolation. The reason why air spring vibration isolators are widely used is that it has the following advantages: For rubber air springs of the same size...

AI Technical Summary

Problems solved by technology

The above advantages of the air spring make it have excellent high-frequency vibration isolation performance, but the vibration isolation performance for low-frequency vibration is not ideal

The traditional air spring isolator is combined with the corresponding vibration-isolated object, its mechanical properties are basically fixed, and its adaptability to the vibration environment is poor, so it cannot further expand the engineering application range of the air spring isolator, especially in low-frequency vibration Apply under the scope

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