SU48688A1 - Device for auto-adjusting and remote control - Google Patents

Description

A device for auto-regulation and telemechanics is proposed, in which the control contact moves either one by one or another potentiometer. To do this, apply d and-aiel. with external excitation, the direction of the current in the windings varies, and this is achieved by synchronization of the transmitter and receiver.

In FIG. 1 depicts a schematic diagram of the proposed device; FIG. 2 is a slightly modified form of the execution of the same device.

In the diagram (Fig. 1), the sliding contact I, which sits on the axis of the device, the deviation angle of which is transmitted (giving the device), in each given position relieves a certain voltage from potentiometer 2. Receiver) removes more or less voltage from potentiometer 4 at this moment, then a current of a certain direction flows through the rotor winding of the electric motor 5, causing the rotor to rotate and the contact 3 connected with it until the latter takes a completely defined position on potentiometer 4, depending on the position of contact 1

on potentiometer 2. As contact 3 approaches the position corresponding to the position of contact 1, the current in the rotor will decrease, i.e., this scheme has a direct relationship between the magnitude of the current in the motor (torque on the motor axis) and the angle of rotation of the arrows transmitter and receiver, which, as you know, gives a certain guarantee against overshooting and swing.

Let the direction of the current (from the transmitter to the receiver) cause (for a given current in the motor excitation winding) the rotation of the rotor and the contact 3 counter clockwise, and the reverse direction of the current (from the receiver to the transmitter) in a clockwise direction. The ego will be caused to follow the arrow of the receiver behind the arrow of the transmitter when it moves in any direction (while only work on potentiometers section 2 transmitters and 4 receivers is considered). Set the contact arrow 3 to 80 volts. Suppose now that contact 1, moving counterclockwise, switches to potentiometer 6 and becomes in the position determined by the value of 10 volts. The rotor of the engine 5 will receive the current from the receiver to the transmitter, due.

which the motor would have to turn pin 3 clockwise, i.e., in the wrong direction, but when contact 1 switches to potentiometer 6, a potential difference appears at the terminals of the motor 5, and a coarse relay 7 connected to these clamps is not triggered at relatively small voltages appearing at the terminals of the engine 5 when operating on the same potentiometer, will work and change the direction of the current in the excitation of the engine 5. The latter will turn in the right direction (in this case counter-clockwise) and start turning five pin 3, wherein when the pin 3 goes to the potentiometer 8, the relay 7 restore former "correct excitation, whereas the rotor also flows" correct current and the motor will rotate on to the corresponding position of the arrow. It is easy to see that the same happens when the transmitter moves clockwise. Thus, both at work on one potentiometer and when switching to another, the arrow of the receiver follows the transmitter's line (or, respectively, adjustable mechanisms animate the position corresponding to the very position of the control mechanisms). This scheme therefore has any g 1 band (any number of sections-potentiometers per range) and can be used as a synchronous-tracking device with a large range and high sensitivity. However, at high speeds on the transmitter, it may happen that pin 1 will outrun pin 3 by more than half of the section and the relay, 7 may give a false positive.

- To prevent this, a so-called vernier system, illustrated in FIG. 2, in which there is a telecontrol synchronous-tracking system. If the sliding contact in transmitter A overtakes the sliding contact on receiver B by an angle of about 180 (half of the section in the diagram), the misalignment of the sliding contacts in the vernier of transmitter 3 and vernier of receiver 4 triggers the relay of the vernier system, which

controls anism, until the misalignment angle in the main system becomes less dangerous. The vernier system is calculated so that the entire range fits into one revolution of the contact of the vernier system, so that if the system is turned on at any angle of inconsistency, first the vernier system will bring the system into approximate agreement, after which the main system will bring the system into full conformity:

As can be seen in the diagrams, when the transmitter and receiver are powered from DC sources of equal voltage with one grounded pole for each system, the connection between the transmitter and receiver is carried out by a single wire (with a double system, two wires).

When powering any current, two common power wires are used for any number of systems and one connection wire for each system.

The application of the proposed device is possible everywhere where the simultaneous following of one system after another is required with great precision, in particular, wherever the Celsius scheme is used.

The scheme described is telemetric. In the auto adjusting device, instead of the engine 5, a relay can be activated. FIG. 2, instead of the motor 5, a power metering relay with extraneous excitation is turned on, which, depending on the current direction, includes motors in one direction or the other, and the receiver serves as a feedback link, controlling the performance of the specified movement by the controlled mechanisms.

The subject matter of the invention.

Claims (2)

1. A device for auto-regulation and telemechanics, characterized in that in order to synchronously follow a potentiometric or bridge device, the contact associated with the axis of the transmitter can bypass one or more potentiometers in any direction any number of times, and during the transition on another potentiometer, the mode of operation of the device did not change; in the indicator circuit, an electric motor with independent excitation was applied, one of the windings of which was included in the line connecting the contacts of the transmitter and receiver, and the second winding When the circuit is operated, it is constantly under voltage, and the current direction in it changes when the transmitter's contact switches to a new potentiometer to achieve synchronous tracking of the contact and the receiver's arrow behind the contact and arrow of the transmitter. 2. In the device of claim I, the use of a relay or other similar device that reversely turns on the motors of adjustable mechanisms, the contact of the receiver associated with the regulating mechanisms.