| 摘要 |
An actuator unit has a tube spring ( 32 ), a piezoelectric actuator ( 31 ), that is inserted into the tube spring ( 32 ), a first cap ( 33 ), that is connected to the tube spring ( 32 ) at a first free end of the tube spring ( 32 ) and which is adjoined by the piezoelectric actuator ( 31 ), a tube-shaped body 38 , that is connected to the tube spring ( 32 ) by joining and is arranged in the area of a second free end ( 35 ) of the tube spring ( 32 ), and a device for pretensioning, that is supported by the tube-shaped body ( 38 ) and pretensions the piezoelectric actuator ( 31 ). The actuator unit is simple and cheap to manufacture.
|
