Double-acting platform type parallel mechanism vibration reducing platform

Abstract

The invention relates to a double-acting platform type parallel mechanism vibration reducing platform. The double-acting platform type parallel mechanism vibration reducing platform comprises an upper moving platform, an upper fixed platform, a lower moving platform and a lower fixed platform, wherein the upper end surface of the upper moving platform is used for placing goods, and is arranged on the top surface of the upper fixed platform through an upper vibration reducing mechanism; the lower end surface of the lower moving platform is provided with a hanging component for hanging the goods, and is arranged on the bottom surface of the lower fixed platform through a lower vibration reducing mechanism; an extension mechanism is connected and arranged between the upper fixed platform and the lower fixed platform; the vertical height of the upper fixed platform is adjusted through the extension mechanism, and then the height of the lower moving platform and the hanging space are adjusted; the upper vibration reducing mechanism comprises a central magnetorheological fluid vibration reducer respectively connected with the upper moving platform and the upper fixed platform through two ends, and multiple upper peripheral magnetorheological fluid vibration reducers; and the lower vibration reducing mechanism comprises multiple lower peripheral magnetorheological fluid vibration reducers respectively connected with the upper fixed platform and the lower moving platform through two ends. Compared with the prior art, the double-acting platform type parallel mechanism vibration reducing platform has such advantages as wide vibration isolating field, high bearing capacity and quick response speed of a vibration isolating system.

Description

technical field [0001] The invention relates to a vibration damping platform, in particular to a double-action platform type parallel mechanism vibration damping platform. Background technique [0002] With the rapid development of engineering science and technology and the rapid improvement of people's material living standards, people have higher and higher requirements for vibration isolation technology of some equipment. In many cases, vibration is considered a negative factor. For example, vibration will affect the functions of precision instruments and equipment, reduce machining accuracy, aggravate fatigue and wear of components, and shorten the service life of its structures. Vibration may also cause large deformation and damage to the structure. Some bridges have collapsed due to vibration; flutter of aircraft wings and buffeting of wheels often cause accidents; vibration of vehicles, ships and engine rooms will deteriorate the load-bearing conditions. So, how to ...

AI Technical Summary

Problems solved by technology

Although the vibration-damping platform of this patent has good wide-frequency domain vibration isolation, the load-bearing occasions of the platform are relatively small, the structure is relatively complicated, and installation is inconvenient

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