Abstract:
The invention relates to a hybrid working cylinder (1) which may be a hydraulic or pneumatic or electric working cylinder or rotary drive and a gas spring (8) assists the stroke (H) of a piston rod (5) in a power direction and, if required, a position of the stroke (H) can be blocked by means of a stroke locking mechanism (12) or a blocking valve (21) in the event of failure of the hybrid working cylinder (1) or of the working means, the gas spring (8) can move the entire system (25, 26) into a predetermined stroke position, and the gas spring (8) is attached, in the hybrid working cylinder (1) or outside the latter, to the axles (30) or between a platform (25) and the parallelogram (26). Furthermore, the gas spring cylinder (33) of the gas spring (8, 8a, 8b) may serve as a piston rod (5).
Abstract:
Verfahren zum Herstellen einer Gewindemutter (10, 26) eines Gewindetriebes, insbesondere eines Kugelgewindetriebes (7, 24), welche Gewindemutter (10, 26) an einem axialen Ende eine sich über einen Umfangsabschnitt erstreckende, stirnseitig geöffnete Ausnehmung (45) aufweist, wobei diese Ausnehmung (45) radial begrenzt ist durch eine Umfangswandung der Gewindemutter (10, 26), und wobei diese Ausnehmung (45) axial begrenzt ist durch einen an der Gewindemutter (10, 26) ausgebildeten Boden (54), und wobei diese Ausnehmung (45) in Umfangsrichtung begrenzt ist durch eine an der Gewindemutter (10, 26) ausgebildete Anschlagfläche (47) für einen Vorsprung (44), hergestellt nach den folgenden Schritten: ein Rohling wird in einem Umformprozess durch Umformung von Werkstoff unter Ausbildung der Ausnehmung (45) umgeformt, wobei der Boden (54) und die Anschlagfläche (47) und die Umfangswandung einstückig miteinander verbunden sind.
Abstract:
An actuator according to one embodiment of the present invention may include a fixed member and a free member. The free member is operatively engaged with the fixed member so that the free member is moveable with respect to the fixed member. The actuator also includes means for moving the free member with respect to the fixed member. An elastic element operatively associated with the free member and the fixed member is operable to store energy without a change in an overall length of the actuator.
Abstract:
An actuation system includes a prime mover, a mechanical option module, an actuator, and a controller. The prime mover includes a drive shaft. The mechanical option module includes a housing, an input shaft coupled to the drive shaft, an output shaft, and a planetary gear module. The planetary gear module includes a sun gear coupled to the input shaft, a planet carrier coupled to the output shaft, an outer ring, and planet gears meshed with the sun gear and the outer ring. The application-specific module is connected to the housing and configured to selectively influence movement of the outer ring of the planetary gear module. The actuator includes an actuator input shaft coupled to the output shaft of the mechanical option module. The controller controls an operation of at least one of the prime mover, the mechanical option module, and the actuator.
Abstract:
Linear actuator device, comprising a housing (102,202), a piston rod (109,209), an electrical motor (116,216) and a transmission means (105,106,305,307) adapted to transfer the rotation of the electrical motor to a linear movement of the piston rod, where the linear actuator device comprises an integrated electrical interface having two signal inputs adapted to extend and retract the piston rod and two signal outputs adapted to indicate a retracted end position (122) and an extended end position (121) of the piston rod.