SU1040601A2 - Stepping switch - Google Patents

Abstract

STEP TRANSFER on auth. No. 45985, I differ by the fact that, in order to exploit the functionality, a two-winding reed-reed relay with counter-switching on symmetrical windings is inserted into each link, each of these two-winding relays is connected — with the outputs of one winding parallel to the winding terminals of the relay of the corresponding link, with one output the other winding is connected to the negative bus of the constant voltage source, and the other end of the other winding connects to the anode of the diode of this link and through a chain of relay contacts connecting in parallel connected This link and the two-winding reed switch of the previous link are connected to the input bus, and the switch is made with an output for connecting the preparation bus to the operation of one of the links to which the last of the above pins of the two-winding reed switch of this link is connected.

Description

О 1 The invention relates to an automaton According to the main auto., No. 45985+, a step switch is known, which contains a single-ended rings recalculation circuit with a series-connected thyristor and a winding of the counting relay of each of the links connected to a constant voltage source, and a forward pulse generator, the output of which is connected via an isolating element, for example a diode, to the control electrode of the thyristor. The control electrode of each thyristor is connected via the closing contacts of the relay of the subsequent link to one of the poles of the DC source, and the closing contacts of the relay of the previous link l are connected in series with the decoupling diode. However, the device has two significant drawbacks: the maximum duration of the pushing pulse is limited the time of the relay is activated; therefore, such a device cannot be controlled by the potential driver. e signals of neighboring links on the interval of time for switching off the relay of the previous link, which limits its functionality. The purpose of the invention is to expand the functionality of the device. The goal is achieved by the fact that a dual-winding reed relay (load relay) is inserted into each link in the device with counter-switching of symmetric windings, each of the specified two-winding relays is connected by one winding leads parallel to the windings of the corresponding link, and the other winding leads to a negative bus of a constant source voltage, and another output of the other winding, to the diode of this link and through a chain of parallel-connected closing contacts of the relay of this link and the two-winding reed switch of the previous link is connected to the input bus, and the switch is made with an output for connecting the bus to prepare for operation of one of the links to which the last of the specified winding pins of the two-winding reed switch is connected. The drawing shows a schematic diagram of the proposed device 01 A step switch contains counting relays 1-3, load relays 4-6, thyristors 7-9 diodes 10-12. The counting relays have two pairs of closure and their contacts. Contacts 13 and 14 belong to relay 1, contacts 15 and 16 of relay 2, contacts 1 and 18 are relay 3. Each load relay has, in addition to the output (not shown), a pair of make contacts (contacts 19 belong to relay 4, contacts 20 are relay 5, contacts 21 - relay 6). The device operates in the following way: Ousten the moment the first propulsive impulse (signal) arrived, a pulse was sent to the device preparation bus 22 for operation, while the cell (link), containing thyristor 9, counting relay 3, and load relay 6, turned out to be conductive. this is an output circuit (not shown) that is switched by means of the power contacts of the load relay 6, the contacts 21 of this relay with contacts 17 and 18 of the counting relay 3 First advancing impyJ;) c, passing through the closed contacts 21, hits the output of the second The winding of the load relay 4 and into the control electrode circuit of the thyristor 7. In this case, the thyristor 7 is opened, including the counting relay 1 and the first winding of the load relay 4 "By closing contacts 14 of the relay 1, the control electrode of the thyristor 9 is connected to the common bus the anode is branched into a control circuit. Since this current flows out of the control electrode, the thyristor is locked, which leads to the release of the counting relay 3 and the load relay 6, Thus, the power contacts of the load relay 6 also open in the output circuit. However, at the moment of passage of the pulse, both windings of the load relay 4 are turned on: the first winding is parallel to the windings of the counting relay 1, and the second winding is first through the closing contact 21 of the load relay 6 of the previous discharge, and since it was turned off via the closing contact 13 of the counting relay 1 bit Consequently, the maximum duration of the advancing pulse does not depend on the response time of the relay, and in the output circuits, the signals of the neighboring cells are superimposed on each other. The end of the forward pulse time of the second winding of the load relay 4 is disconnected, which leads to the closure of its contacts 19 in the control electrode circuit of the thyristor 8, which prepares the next cell (link) to turn on, and from that moment the power contacts in the output circuit of the first circuit also close. the cell (link), the state acquired by the device is maintained until the arrival of the second push pulse. The second driving pulse passes through the closed contacts 19 of the load relay 4, turns on the thyristor 8, the second; cells, whereby the second cell is turned on and the first one is turned off, etc. 01 4 Techno-economical advantages of the proposed step switch in comparison with the known one are most fully manifested in connection with the possibility of controlling a potential signal by it. In this case, there is no need to use a special source of propulsive pulses. The proposed switch can be controlled from control buttons, relay contacts, limit switches, etc. This feature allows it to be widely used in automatic control of machines, automatic lines, vehicles, and so on. P ,

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Claims (1)

STEP SWITCH <autosw. Ν '459854, distinguished by the fact that, in order to expand the functionality, a double-winding reed relay with counter-activation of symmetrical windings is introduced into each link, each of these two-winding relays is connected by the outputs of one winding parallel to the terminals of the relay winding of the corresponding link, one output of the other winding - to the negative bus of the DC voltage source, and the other output of the other winding - to the anode of the diode of this link and through a chain of parallel connected relay contacts the first link and the double-winding reed relay of the previous link - to the input bus, and the switch is made with the output for connecting the bus for operation to one of the links to which the last of these conclusions is connected to the windings of the Double-winding reed relay of this link. Ζ 1 1 () 4 () 601