SU570882A1 - Device for positional control of object displacement drive - Google Patents

Description

one

The invention relates to position control devices and to discrete tracking systems and can be used in various fields of automation.

A device I is known for automatically selecting the direction of movement of an object, which comprises a switch, location sensors, coincidence circuits, collecting circuits.

A disadvantage of this device is its complexity, since the tracking unit consists of a large number of coincidence circuits and separation schemes implemented on polzprovodnikovyh diodes, which reduces the reliability of the device with a large number of stopping places.

The closest to the invention to the technical essence is a device 2 for positional control of the drive, which consists of a position reference element, an actual position sensor, a tracking diode block and an actuator.

In this device, the set point of the stopping point is in the form of a positional distributor whose position outputs are electrically connected to the outputs of the actuator actual position sensor positions shifted by one position for one or the other direction, with the rectifier circuits with mutually anti-pole polarity being connected between the outputs of the distributor each of the directions of movement, and the tracking unit is formed by separator rectifiers. A disadvantage of this device is its complexity, which involves the use of a diode unit. In addition, the known device does not have sufficient reliability in operation with a large number of stopping points.

The aim of the invention is to simplify the device. The goal is achieved by the fact that in the device the outputs of the position element of the stop point are connected via the corresponding first opening contacts of the path switches to the common point of connection of the second opening contacts connected in series, with the chain of the second opening contacts connected to the executive relay.

The invention is illustrated in the drawing.

Position Control Device

Claims (2)

the drive for moving an object contains an element specifying the stop 1, the sensor 2 of the actual position of the drive, made on the basis of multi-stage travel switches, and the actuator 3, made on the basis of the execution relays. 3. The element of task 1 is made in the form of a positional distributor, the outputs 4-11 of which are connected to the corresponding first disconnecting contacts 12-19 of the path switches of the sensor 2 of the actual 5 position. The outputs of the left disconnecting contacts 12-19 are connected to the corresponding common points of series-connected second disconnecting contacts 2027 of the traveling position switches of the actual position, the output of contact 12 is connected to the common point of contacts 20 and 21, the output of contact 13 to the common point of contacts 21 and 22, etc. One output of the chain from sequentially connected 15 second disconnecting contacts 20-27 through the opening contact 28 of the relay 29 of the executive body 3 is connected to the winding of the relay 30 (“Back”), and the other output of the chain through the opening th relay contact 31 20 30 29 to the relay coil ( "Forward). The device works as follows. The drive is in position to which pins 14-22 correspond. In this position of the drive, the track bridge is excited, i.e. contacts 14 and 22 are open. If the position of the element of the stop 1 location corresponds to that shown in the drawing, the current cannot pass through any of the windings of relays 29 and 30 of the actuator 3. The drive is in the position corresponding to the contacts of the path switches 14-22. The element for setting the stop position 1 is moved to the position corresponding to 35 to output 9 to the winding of the relay 29 "Forward the executive body will pass current through the closed contacts 17, 26, 27 of the path switches of the actual position sensor and the disconnecting contact 31 of the relay 30. Power circuit - 40 PIA relay 30 "Back of the actuator 3 remains broken, since contact 22 and contact 28 of relay 29 are open. Relay 29 executive body switches the drive in the direction of "Forward. After the release of the 45 clock cycles of the switch 14-22, the circuit of the relay 30 remains open by contact 28 of the previously activated relay 29. When the drive moves to a predetermined position, which corresponds to contacts 17-25, 50 then the circuits of the relay 29 and 30 of the actuator 3 are broken by track 17 a switch, and pin 25 will additionally break the power circuit of the relay 30 "Back. The drive stops at a predetermined position. 55 The drive is in the position to which contacts 17–25 correspond. The element for setting the stop position 1 has been moved to the position corresponding to output 5. A current position go to the winding of the relay 30 Back of the executive body go through closed contacts 13, 21, 20 of the actual position position sensor switches and disconnecting contact 28 of relay 29. Relay power circuit 29 organ 3 remains broken, since contact 25 and contact 31 - relay 30 are closed. The actuator relay 30 operates and switches the drive to the side “Back. After the contacts of the switches 17-25 are released, the relay circuit 29 remains open by the contact 31 of the previously triggered relay 30. When the drive moves to a predetermined position, which corresponds to the contacts of the path switches 13, 21, the power supply circuit of the windings of the relays 30 and 29 of the actuator 3 is broken by track 13 the switch, and pin 21 will additionally break the power circuit of the relay coil 30 "Reverse, the drive will stop at the set position. The drawing shows an eight-point drive control device. Similarly, it can be constructed for any other number of positions. The proposed device, in which the diode logic unit is completely excluded, and the tracking function in the actual position sensor is performed by one organ (path switches), favorably differs from the prototype, both in terms of simplicity of the circuit design and reliability in operation. straighteners causing a decrease in the level of the working signal will practically be free of uneven voltage on the elements of the executive body, which will significantly increase the number of stopping points ivoda. Apparatus for positional control of a drive for moving an object, comprising an element for specifying a stop point, made in the form of a positional distributor, a drive actual position sensor, made on the basis of multi-contact switches and actuating relays, characterized in that, in order to simplify its design, the outputs the element of the task of the stopping point is connected through the corresponding first disconnecting contacts of the path switches to the common junction point of the second station snatching contacts connected in series, with a chain of second disconnecting contacts connected to the executive relay. Sources of information taken into account during the examination 1. USSR author's certificate No. 209067, cl. Q 06F 15/20, 1966. 2. USSR author's certificate №408441, cl. H 01H 36/00, 1960.