Electrically actuated rotary drive device
AssigneeFesto AG & Co.
InventorGerhard Thorwart
Life of this patent
Estimating the term…
Abstract
An electrically actuated rotary drive device which has a gear casing with an electrical drive motor mounted at its rear side and on which is rotatably mounted an output member in driving connection with the drive motor. The driving connection is realized by gearing means provided in the gear casing and containing a driven gear fitted to the output member, in the form of a ring gear with internal tooth system, and a drive pinion belonging to the drive motor and with an external gear teeth system. The drive pinion extends into the ring gear, inside the gear casing.
Claims23
An electrically actuated rotary drive device, with a gear casing having a front side and a rear side opposite the front side, on which is rotatably mounted an output member accessible at the front side of the gear casing, which is in driving connection with a driven gear, which is mounted rotatably in the gear casing and with which a drive pinion of an electrical drive motor mounted externally at the rear side of the gear casing is in gearing engagement, wherein the driven gear is in the form of a ring gear with an internal tooth system, wherein the drive pinion inside the gear casing dips axially into the ring gear and makes gearing engagement with its internal tooth system, and
- wherein a sensor used for rotation angle positioning of the output member, starting from the rear side of the gear casing, extends into the gear casing and cooperates with an actuating element, which is stationary relative to the output member.
An electrically actuated rotary drive device, with a gear casing having a front side and a rear side opposite the front side, on which is rotatably mounted an output member accessible at the front side of the gear casing, which is in driving connection with a driven gear, which is mounted rotatably in the gear casing and with which a drive pinion of an electrical drive motor mounted externally at the rear side of the gear casing is in gearing engagement, wherein the driven gear is in the form of a ring gear with an internal tooth system, wherein the drive pinion inside the gear casing dips axially into the ring gear and makes gearing engagement with its internal tooth system, and
- wherein a feed-through passage extends through the gear casing and the output member, coaxial to the rotation axis of the output member, which opens out at the front side of the output member and at the rear side of the gear casing and may be used for the feeding through of power transmission means such as cables or hoses.
Dependencies are inferred from the claim text.