SU942107A1 - Reversible pulse distributor - Google Patents

Description

The invention relates to automation and telemechanics and can be used to control a large number of objects operating sequentially one after the other in time. Known pulse distributor, made on the bridge elements with cells. The bridge shoulders in each cell consist of resistances and capacitors. In the diagonal of the bridge. (a diode is turned on. The base-emitter gap of the subsequent transistor serves as a bridge load. However, this distributor does not have reversible properties. The closest to the one proposed is a relay reversing distributor, consisting of successively connected cells, each of which has two diode bridges, high-speed relays, decoupling diodes, the first bus connecting the positive power source with the terminals of the reverse pulse distributor, the second bus connecting the negative pole of the source power supply to the cells of the reverse pulse distributor and resistor 2. The disadvantage of the distributor is the relatively large number of communication lines between the cells and its limited functionality. A large number of communication lines reduces to a certain extent the reliability of the system due to connections, etc., and also increases the cost of the system when communication lines are long between cells. The limited functionality of the distributor is determined by the fact that reverse operation with any enabled cell, but only with. extreme. The purpose of the invention is to reduce the number of communication lines between cells.

and enhanced distributor functionality.

This goal is achieved by the fact that a reversing pulse distributor consisting of successively connected cells, each of which contains a diode bridge, the first output of the first diagonal of which is connected to the first output of the high-speed relay, the second output of which is connected respectively to the cathodes of the first and second development the first diode and the first pin of the high-speed relay; the first power bus connecting the positive pole of the power source with the first pin of the second diagonal of the diode bridge each cell of the reversible pulse distributor, the second power bus connecting the negative pole of the power source with the second output of the second diagonal of the diode bridge of each cell of the reverse pulse distributor, the control input of which is connected to the anode of the first decoupling diode of the first cell, the anode of the second decay diode of each previous cell connected to the anode of the first decoupling diode of each subsequent cell of the reversible pulse distributor, in which the slow a relay, the first output of the opening contact of which is connected to the second output of the first diagonal of the diode bridge, the second output of the opening contact is connected to the second output of the high-speed relay and the first output of the slow relay, the second output of which is connected to the first output of the high-speed relay, the first closing contact of the slowed-down relay first output connected to the first power bus; second terminal connected to the anode of the second decoupling diode; the second closing contact of the slow relay is connected to the first output terminal the second power bus, the second output is connected to the control input of the pulse distributor.

The drawing shows the electrical circuit of the reversing pulse distributor.

Reversing pulse distributor contains in each cell of a high-speed relay 1,2 or 3, slow relay, 5 or 6, diode bridge

7.8 or 9, decoupling diodes 10-11, 12-13 or Il-IS, power buses 16 and 17, control input 18.

When the reverse distributive pulse distributor is operating in the forward direction, supply 16 is fed to the bus bar plus a power source, and to the bus 17 - a minus. In order to reverse, it is necessary to change the polarity of the applied voltage in the power lines 16 and 17.

Reversible pulse distributor works as follows.

In the initial state, all relays are connected. To turn on the first cell, it is necessary plus a power source to briefly apply control input 18. At this time, the high-speed relay 1 turns on self-blocking and energizes the slow relay. Relay 1 is switched on along the circuit plus a power source - control input 18 - decoupling diode 10 - winding of high-speed relay 1 - disconnecting contact of delayed relay 4 - bridge diode 7 - bus 17 POWER - minus power source. Self-locking of the fast-acting relay 1 is carried out along a circuit plus a power source; power bus 16 — diode of bridge 7; closing contact of quick-acting relay 1 — winding of high-speed relay 1 — disconnecting contact of delayed relay — bridge diode 7 — bus 17 of power supply — minus the power source. Relay 4 is powered by the same circuits.

After the expiration of the set shutter speed, the delayed relay will turn on, the opening contact of relay 4 of which will break the power supply circuit of relay 1 and disconnect it, and one of the short-circuiting contacts of relay k will prepare the circuit that switches on the second cell of the reverse pulse distributor.

Relay 2 is switched on along a circuit plus a power source - power supply bus 16 right relay contact relay isolating diode 12 - relay winding 2 - disconnecting contact of relay 5 bridge diode 8 - power supply 17 - minus power supply.

Claims (2)

Relay 2, when turned on, becomes self-blocking. At this moment, the relay i of the first cell of the reversing pulse distributor is turned off: T hold + T turn on 2, where T hold + is the hold time in the on state of the closing contact of the relay after removing power from the time relay; X on 2 - the on time of the relay 2. The delay on the activation of the delayed relay is usually chosen sufficient to test the established program of operation of the actuator of the reversing pulse distributor cell, which is activated by the contacts 1-3 of the relay. Relay 3 is turned on in the same way, so the circuits of the next cell of the reverse pulse distributor, etc. are prepared. Thus, when the reversing pulse distributor is operating, the delayed relay is sequentially turned on and off, preparing the power supply circuit of each subsequent cell, and the high-speed relays are turned on only for the period of operation of the actuator of the control object, after which they turn off the c. To return the reversing pulse distributor to its original position, the supply voltage is switched off. In order to switch the cells in the opposite direction, it is necessary to change the polarity of the applied voltage to the power lines 16 and 17. Suppose that a high-speed relay 3 of the third cell of the reversing pulse distributor is turned on and at this moment, in order to carry out the reversal work, the polarity of the applied voltage in the power rails has changed. In this case, the relay 3 remains switched on by connecting the winding 3 to the diagonal of bridge 9, which allows current to flow in it in the same direction and when the voltage of the power supply voltage changes, and the relay 6, when turned on, will prepare the switching circuit of the relay 2 of the second cell . In this case, relay 2 is switched on along the circuit plus power source; power supply bus 17 — left closing contact of relay 6 — isolating diode 13 — winding of relay 2 — disconnecting contact of relay 5 — bridge 8 diode — power bus 16 — minus the power supply. The use of a reverse pulse distributor will reduce the number of communication lines, as well as expand its functionality 76. Laboratory tests have shown the reliability of the proposed reverse pulse distributor, which will be used in support systems for commercially available mechanized coal mining complexes. Claims of the invention A reversible pulse distributor consisting of series-connected cells, each of which contains a diode bridge, the first lead of the first diagonal of which is connected to the first lead of the high-speed relay, the second lead of which is connected respectively to the cathodes of the first and second uncoupling diodes and to the first the output of the high-speed relay, the first power bus connecting the positive pole of the power source with the first output of the second diagonal of the diode bridge of each cell ersivnogo distributor pulses, a second power bus, connecting the negative pole of the power source, the second terminal of the second diagonal of the cell diode mosta.kazhdoy reversing distributor pulses, a control input of a reversing distributor connected to the anode of the first diode of the first decoupling. cells, the anode of the second decoupling diode of each previous cell is connected to the anode of the first decoupling diode of each subsequent cell of the reversing pulse distributor, characterized in that, in order to expand the functionality and simplify the reversible pulse distributor, the first output is inserted into each cell of it the open contact of which is connected to the second output of the first diagonal of the diode bridge, the second output of the open contact is identical to the second output of the fast-acting relay and the first output of the slow relay, the second output of which is connected to the first output y of the high speed relay, the first closing contact of the slow relay, the first output connected to the first power bus, the second output connected to the anode of the second decoupling diode, the second closing contact of the slow relay using the first output connected to the second power bus, the second output is connected to the control input of the pulse distributor. Sources of information taken into account during the examination 1. V. Ilyin. Telecontrol and telemetry. M., Energie, 197, p.276. 2. USSR author's certificate 52b708, cl. E 21 D, 1973 (prototype). "D (V" -J fO