Power-off maintaining three-degree-of-freedom piezoelectric directional adjustment device and platform control method

• Main Authors: QU JIANJUN, LI MING, WANG WEIXIANG
• Format: Patent
• Language: Chinese; English
• Published: 27.09.2019
• Subjects: CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR; ELECTRICITY; GENERATION

The invention discloses a power-off maintaining three-degree-of-freedom piezoelectric directional adjustment device and platform control method, and relates to a piezoelectric driving adjustment device and method. The device comprises a platform, a base and three or four adjustment mechanisms, wherein each adjustment mechanism comprises an ejector rod, a driving mechanism, a braking mechanism and a supporting body; the upper end of the ejector rod is fixed to the platform, a universal flexible hinge is machined on the ejector rod and located between the upper portion of the supporting body and the platform, and the supporting body is fixed to the base. The method comprises the steps: 1, assembling the adjusting mechanism, the platform and the base; 2, relieving the self-locking state of the ejector rod; 3, enabling the adjustment device to control the platform to achieve three-degree-of-freedom adjustment. The device is compact in structure, is used in a space environment, is stable and reliable in operation,