DE696877C

DE696877C - Device for moving objects under vacuum

Info

Publication number: DE696877C
Application number: DE1939A0088955
Authority: DE
Inventors: Dipl-Ing Otto Muehlhaeuser; Dr Gustav Rosenbrook
Original assignee: AERODYNAMISCHE VERSUCHSANSTALT
Current assignee: AERODYNAMISCHE VERSUCHSANSTALT
Priority date: 1939-02-07
Filing date: 1939-02-07
Publication date: 1940-10-01

Description

Das Arbeiten unter Vakuum, insbesondere unter einem Hochvakuum, hat bisher stets zu erheblichen Schwierigkeiten geführt, wenn es sich darum handelte, irgendwelche dem Vakuum .,ausgesetzten Gegenstände zu bewegen. Eine geeignete, den Bedürfnissen der Praxis angepaßte Vorrichtung fehlte.Working under a vacuum, especially under a high vacuum, has always been led to considerable difficulties if it came to any of that Vacuum. To move exposed objects. A suitable one, the needs of the practice adapted device was missing.

Um diesen Mangel zu beheben, sieht die rorliegende Erfindung innerhalb des Vakuumraumes einen Elektromotor vor, dessen Drehmoment in bekannter Weise zur Bewegung beliebiger Gegenstände dient. Dabei besteht die Erfindung im wesentlichen darin, daß dieser Motor wegen der hohen Dampfspannung seiner Wicklung nach 'allen Seiten hin hochvakuumdicht gekapselt ist. Eine solche hoch-■ vakuumdichte Kapselung wird dadurch erzielt, daß der Motor von einer allseitig dichten, Rotor und Stator umschließenden Trommel umgeben ist, deren Seitenwände im Gegensatz zu den bekannten, anderen Zwecken dienenden Anordnungen, bei welchen der Elektromotor in einer Trommel untergebracht ist, keinerlei Durchführungen für bewegliche Teile, wie Wellen, Achsen u. dgl, besitzen. Der Stator des Elektromotors wird beim Er- , findungsgegenstand mangels sonstiger Möglichkeit der Aufnahme des vom Rotor ausgeübten Drehmomentes einseitig beschwert oder magnetisch bzw. durch irgendeine Fernkraft o. dgl. festgehalten, so daß das hierdurch entstehende Moment dem Drehmoment das Gleichgewicht hält.To remedy this deficiency, the present invention provides within the vacuum space an electric motor, whose torque in a known manner to move any Objects serves. The invention consists essentially in the fact that this Motor is highly vacuum-tight on all sides because of the high vapor tension of its winding is encapsulated. Such a highly vacuum-tight encapsulation is achieved by that the motor is enclosed by a drum that is sealed on all sides and encompasses the rotor and stator is surrounded, the side walls in contrast to the known, other-purpose arrangements in which the Electric motor is housed in a drum, no bushings for moving Have parts such as shafts, axles and the like. The stator of the electric motor is object of invention in the absence of any other possibility of taking up what is exercised by the rotor Torque weighted on one side or magnetically or by some remote force o. The like. So that the resulting moment holds the torque in equilibrium.

In der Zeichnung ist der Erfindungsgegenstand schematisch wiedergegeben. Es zeigen:The subject of the invention is shown schematically in the drawing. Show it:

Abb. ι die Gesamtanordnung,Fig. Ι the overall arrangement,

Abb, 2 und 3 je ein Ausführungsbeispiel des gekapselten Motors im Schnitt.Fig, 2 and 3 each an embodiment of the encapsulated motor in section.

Nach Abb. 1 ist der hochvakuumdicht gekapselte Motor ι innerhalb des Vakuumraumes 2 derart angeordnet, daß sein Drehmoment in bekannter Weise mittels einer Welle 3 über Zahnräder, Schneckenräder o. dgl. auf die anzutreibenden GegenständeAccording to Fig. 1, the highly vacuum-tight encapsulated motor is inside the vacuum space 2 arranged so that its torque in a known manner by means of a shaft 3 via gears, worm gears or the like on the objects to be driven

Claims

is transmitted. The power supply and regulation of its speed or its direction of rotation is carried out through lines 4, which are introduced into the vacuum space, taking into account the usual sealing methods. "5" According to Fig. 2, the rotor 5 and deC are rotatably attached to the rotor axis 6, weighted on one side by a weight 7, and the stator 8 is enclosed by an encapsulating drum. The drum side walls 10 and 11 are firmly connected to the rotor axis 6 '. The drum rotates together with the rotor axis and is in turn mounted in bearings 14 and 15 by means of stub axles 12 and 13, which are firmly attached to the drum side walls in the height and direction of the rotor axis by means of slip rings 16, which are arranged outside the drum on the stub axle 13 and are connected by lines to slip rings 17 attached to the rotor axis In the present case, four slip rings are provided which, in addition to the usual power supply, also h are used to regulate and reverse the motor. The rotor 5 only takes the rotatable stator 8 with it during its revolution until the torque exerted by the rotor on the stator is in equilibrium with the gravitational moment of the weight 7 attached to the stator. According to Fig. 3, h. As is known per se, the field magnets 19, which are firmly connected to the highly vacuum-tight drum 18, are moved around the stator 20, which is rotatably mounted in bearings 21 and 22. Here, too, the stator 20, in this case as an armature, is weighted by weights 23 and 24 in such a way that it can only be carried along a little by the rotor 19. Patentansi'Küciik:

1. Device for moving objects under vacuum, characterized by the highly vacuum-tight encapsulation of one inside the vacuum space (2) attached electric motor (1), its Torque is used in a known way to move any object, and its speed and direction of rotation by means of

■ a control device located outside the vacuum space can be controlled.

2. Apparatus according to claim 1, characterized characterized in that the motor is sealed on all sides, rotor (5) and stator (8) enclosing and with the Rotor axis (6) firmly connected drum (9) is surrounded, and that the rotatable on the stator attached to the rotor axis by one-sided weighting (7) in its position is held.

3. The use of an external rotor motor for devices according to claim 2.

1 sheet of drawings