Two-rotation two-motion four-freedom-degree parallel excitation platform
A moving platform and platform technology, applied in the field of parallel vibration excitation platform, can solve the problems of inconvenient installation and maintenance, poor dynamic response characteristics of the mechanism, uneven force on branches, etc. simple effect
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[0014] exist figure 1 and figure 2 In the schematic diagram of the four-degree-of-freedom parallel excitation platform shown, the linear module 6 in the four PSS drive branches with the same structure is fixed on the fixed platform 7, the slider 5 is connected to the linear module through the moving pair, and the connecting rod 3 One end is connected to the slider through the first ball pair 4, and the other end is connected to the moving platform 1 through the second ball pair 2. The linear module is used as the driver, and the four driving branches are respectively driven by the four linear modules. The structure is that the guide rail 13 in the middle restraint branch of the PPU is fixed on the fixed platform, one end of the lower link 11 is connected to the above-mentioned guide rail through the first moving pair 12, and the other end is connected to one end of the upper link 9 through the second moving pair 10 , the other end of the upper link is connected with the movi...
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