Double-acting platform type parallel mechanism vibration reducing platform

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.