DE666917C - Arrangement on a follower control for electric motors - Google Patents

Description

The invention relates to an arrangement on a follow-up control for electric motors, in which the motor shaft with a control shaft that determines its gear via a planetary gear is in connection, the switching device for the by tilting its axis Motor operated. According to the invention, a control means is attached to the rotating wheel axle, that in addition to the indirect influence of the Umlaufradachse by Control shaft for an immediate tilting (for example by one attached to it Handle) is set up in such a way that, in addition to the follow-up control, there is also a fast connection for the engine.

The Umlaufradachse is held in the tilted position as long as the Motor should rotate at its highest number of revolutions, with the control shaft empty with ? -o is running. When you release / i, the planetary gear returns. axis returns to its rest position and thus switches off the motor from the mains.

Known follow-up controls with high-speed circuits consist of interlinked ones Three-phase asynchronous motors as encoders and receivers. To make a Fast activation, the transmitter and receiver are separated from each other, the synchronous control is thereby interrupted and the receiver is connected to a special power source that is independent of the encoder.

Compared to the control according to the invention, these known devices j a significantly higher expenditure of machines and devices is required.

It

follower controls are also known in which the motor shaft with a their course determining the control shaft via an orbital wheel in connection, which is through Tilting its axis actuates the switching device for the motor. With these well-known Although facilities can rotate the wheel axis by tilting the planet gears of a special additional differential gear can be tilted indirectly via the control shaft, however, there is no additional direct tiltability of the planetary gear shaft and thus the quick connection.

The device according to the invention has similar devices before the known ones the advantage that it is simpler than this, and yet that it is equally reliable As the known devices make it possible to immediately activate a follow-up motor with a simple movement and to bring it to the highest speed with ease, with the control shaft idling.

It will be advantageous to make use of this facility, for example Aiming devices for guns. Normal targeting then happens through Turning the control shaft, while with a fast target change with the orbital wheel axis controlled will.

An embodiment of the invention is shown schematically in the drawing.

*) The patent seeker stated as the inventor:

Dipl.-Ing. Peter Füsgen in Düsseldorf.

The control shaft is designed as a bevel gear a, for example for manual operation, and is in engagement with the revolving wheel &. In _{1 the} same planet wheel engages a bevel gear c driven by the motor. ^ Via a self-locking worm gear. The rotating wheel b is mounted on the shaft & _lr which is connected to the switching lever e by spring lever d in such a way that this is the extension of the shaft b ±

ίο educates. At the free end of the switching lever e switching contacts e _{± are} attached, which come into contact with fixed contacts f or g when the shaft b _{x is} tilted, so that the motor / i gets current to circulate in one direction or the other. If the control wheel α is now rotated, the planet wheel b rolls on the bevel gear c as long as the motor h and thus the second bevel gear c is still at a standstill, with the shaft b _x executing a slight tilting movement while driving the shift lever e. As a result, the switch is closed, the motor h starts, also rotates the bevel gear c and, in doing so, immediately tilts the shaft b _x back into its starting position. The switch is now open again, but is closed again under the action of the handwheel α , which continues to turn, and this game of continuous switching on and off of the motor is repeated until the steering wheel is set to rest. Then the motor h has delivered a movement to the device operated by it, for example to a gun slewing gear, which corresponds in terms of direction, speed and length to the control movement introduced at α. "

Opening sparks at the switch contacts are expediently caused in a known manner Capacitors deleted.

The resilient connection of the shift lever e with the rotating shaft b _v, which allows these two parts to pivot to a certain extent from their longitudinal rest position, makes it possible to initiate sudden changes in the speed of rotation or the direction of rotation without excessive resistance occurring at the steering wheel and being overcome have to. One can of course also ■ <S | genkontakte / g entsprechlnd arranged resiliently to lever e. The rest position of the rotating shaft b _t and thus the neutral central position of the lever contacts e _x between the mating contacts located at the smallest distance from them is maintained by spring means that act on the bearing part or housing, or by a suitable weight distribution around the tilt axis. To directly tilt the Umlaufradaehse b _x for an overdrive of the motor h without using the steering wheel q, a handle b _{2 can be} provided, or remote control means are available, such as can of course also take the place of a manually operated steering wheel α . ■ - ■

Claims (2)

Patent claims: i. Arrangement on a follow-up control for electric motors, in which the motor shaft is connected to a control shaft that determines its gear via a planetary wheel which, by tilting its axis, actuates the switching device for the motor, characterized in that a control means is provided _{on the planetary wheel axis (Z) 1)} is attached, which in addition to the indirect influenceability of the planetary gear axis by the control shaft (α) is also set up for direct tilting (handle & ₂ ) in such a way that, in addition to the follow-up control, there is also a high-speed circuit for the motor. 2. Apparatus according to claim 1, characterized in that the switching contacts (e _t , f to g ·) of the motor Qi _{controlled by the planetary gear axle (O 1} )) between the planes of the central gears (α, c) of the planetary gear train and preferably in extension the Umlaufradachse are arranged. 1 sheet of drawings