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US 10,855,206 B2Granted
Piezoelectric rotary drive having a loading means designed as a leaf spring
AssigneePhysik Instrumente (Pi) GmbH & Co. KG
InventorsReinhard Hübner, Hansjörg Luckert
Life of this patent
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Abstract
Disclosed is a piezoelectric rotary drive for a shaft, which includes a piezoelectric actuator, a deformable frame that can be coupled with a coupling section to the shaft in a force-fit manner in order to accomplish a stick-slip drive, and a loading device which can apply a preloading force to the coupling section and/or the actuator and/or the shaft. To facilitate production and assembly, the loading device can be a leaf spring which in the relaxed state extends substantially in a plane, such as along a straight line.
Claims21
A piezoelectric rotary drive for a shaft, comprising:
- at least one piezoelectric actuator;
- an adjustable and/or deformable frame which has a coupling section configured to be coupled to a shaft in a force-fit manner to accomplish a stick-slip drive;
- and
- at least one loading means configured to apply a preloading force to said coupling section and/or said actuator and/or said shaft, wherein said loading means is a leaf spring which in a relaxed state extends substantially in a plane.
1 more element
Dependencies are inferred from the claim text.