SU1293748A1 - Device for indicating state of locking actuator mechanism - Google Patents

Abstract

The invention relates to devices for signaling the state of locking two-way actuating mechanisms. The aim of the invention is to increase the information content of the device. In the device, the initial state of the elements depends on the initial position of the actuator (MI), the absence of a signal on the information bus, through which the signal about the actuation of the restrictive power means of compulsory compaction when closing the MI, and on previously issued commands. When the MI is fully open, the second and third position indicators are evenly lit, and the first indicator is off. When a change in the position of the MI occurs, the Close command is given, the second and third indicators go out, and the first position indicator starts flashing. As soon as IM reaches the closed position and the self-compactor,. The first position indicator will go into a steady state of luminescence. When the IM is reversed to the open position, the second and third position indicators begin to flash with a blinking light, indicating the beginning of the transition process, and the first position indicator goes out. In the event of any malfunction causing the MI to stop, the second and third position indicators stop flashing. Then the second position indicator begins to light, but the duration of the luminescence is several times greater than the canceled state, which indicates that the MI is stopped at the beginning of the path when the opening is reversed. If it is necessary to move the MI towards the open or close, the corresponding command Open or Close is given, depending on what the second and third position indicators or the first position indicator are flashing with i and flashing to an even glow when the MI reaches one of its final positions. 3 il. i (L tsd with 00 4 00

Description

The invention relates to devices for signaling the state of locking two-way actuators (MIs), which have control bodies for their end positions and are set in motion by reversing electric drives, whose operation modes determine not only their long and continuous transition time from one end position to another, but and the need for a temporary stop at an intermediate position, as well as requiring a forced seal of the closure member at the end of the stroke for closure, achieved by Strongly force limiting means provided with a discrete body of a control torque value and may be used in local and centralized control and monitoring systems in the gas, chemical, power and other industries x promshshennosti.

The purpose of the invention is to increase the information content of the device.

Fig. 1 shows a functional diagram of the signaling device of the state of the locking actuator; FIGS. 2 and 3 are functional diagrams of possible embodiments of a pulse converter.

The functional diagram of the signaling device (Fig. 1) contains the elements OR 1 and 2, the light indicators 3 and 4, the position, the bus 5 of the first end position. Closed, the W-NE-6 element, the W 7 item, the bus 8 of the second end position. Open, OR elements 9-11, bus 12 Open, triggers 13 and 14, bus 15 Stop, elements 16-18, pulse generator 19, position indicator 20 j, bus 21 close, information bus 22 through which a signal about the activation of limiting force means is received seals when closing the MI, inverter 23, elements And 24-27, element ШШ 28 ,. time element 29, transducer converter 30 pulses.

The device works as follows.

The initial state of its elements depends on the initial position of the MI, the absence of a signal on the information bus 22, as well as on previously

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shihs teams. If the Close or Open commands were given, the second trigger 14 from its direct output gives out a single logical signal, and vice versa, a zero signal, if previously the Stop command was given. The {-SHI-HE 6 element appears logical 1 when the MI is in an intermediate position, corresponding to the absence of single signals on buses 5 and 8 of the first and second end positions. In addition, to create a seal of the locking actuator in the Closed position, its electric drive is not switched off using a de-regulated and not sufficiently accurate limit switch, but by using an electromechanical clutch switch triggered at certain torque values on the drive shaft, which corresponds to the required closure of the shutter IM. The return of the clutch switch to the initial state, when reversed from the closed state, occurs only after the drive shaft completes a certain path characterizing the insensitivity of the clutch. During this way, the contact of the clutch switch is not only closed, but also mechanically blocked. The presence of this interlock results in the fact that automatic reversing of the electric drive can be effected only after the breaker contact opens.

Accepts the initial initial position, in which W is fully open. In this case, the bus 8 of the second open position receives a single logical signal, which causes an even glow of the second 4 and third 20 position indicators. The first indicator, 3 positions is extinguished, as the bus 5 of the first end position, as well as the output of the NIII-H6 element, contains logical signals. If it is necessary to change the state of the IM, the bus 21 is given a Close command, in which the first 13 and second 14 triggers go from the inverse state to the forward one. In the case of executing this command and moving the MI from its open end position, a single logical signal from bus 8 is removed. Indicator0

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The 4 and 20 positions are extinguished, and the 3 position indicator starts flashing with a blinking light, indicating that the MI is moving in the direction of closure. If the Stop command is given over the bus 15 while the MI is moving in the direction of closure, the second trigger 14 changes its state to an inverse Flashing flashing of the position indicator. 3 stops, and the second indicator of the 4 position lights up evenly, because on all inputs of the And 18 element there will be one logical signals. The half glow of the mnemonic indicates a half-open static position. IM. To further move the IM in the direction of closing on bus 21, the Close command is issued again. The second trigger 14 again returns to the forward state, the 4 position indicator goes out, and the 3 position indicator starts flashing with a blinking light, signaling the movement of the AM in the direction of closing. When the MI approaches the closed position, the first switch of the closed position is triggered, which corresponds to the appearance of a single logical signal on bus 5 of the first end position and zero signal at the output of the OR-NOT 6 element, which prohibits the transmission of intermittent signals from the pulse generator 19 through AND 16 on The first indicator is 3 position. However, since the MI continues its movement, the flashing of this indicator continues through the AND element 26, the second and third inputs of which contain single logical signals from the bus 5 and the output of the inverter 23, and on the first input a discontinuous signal 19 pulses coming from the generator. As soon as the torque on the shaft of the electromechanical clutch reaches a value corresponding to the required closure density of the closure member of the actuator, its switch is triggered, and on the data bus 22 there is a single logical signal that prohibits pestling through the AND 26 element to the 3 position indicator signal generator 19 pulses and at the same time generates at the output of the element And 25 long single potential signal, which

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causes even glow of the 3 position indicator. This means that IM is not. only closed but compacted

If it is necessary to reverse the MI to the open position, the Open command is given to the bus 12, in which the first trigger 13 from the direct state changes to the inverse one, and the second trigger 14 saves the direct state, and if the MI started the command given, i.e. moved away from its final closed position, which corresponds to the zero logical signal on the bus 5 of the first end position, and logical 1 at the output of the IPI-NOT 6 element, then through the And 17 element to the second 4 and the third 20 indicators, start the post - the intermittent signals of the generator 19 0, pulses, and the continuous single potential signal at the output of the element And 25 turns into zero. At the same time, the first 3 position indicator turns off, and the second 4 and the third 20 begin to flash with a blinking light, indicating a beginning of a transient process of moving the MI towards the open.

Due to the design features of the electromechanical clutches, the contacts of their microswitches continue to remain in a closed state for some time after the beginning of the movement of MI towards the open. Therefore, as 5 only a single logical signal appears at the output of the OR-NOT 6 element, the time delay element 29 is triggered through the AND 24 element, which begins to control the time during which the contact of the electromechanical clutch is in the closed state. If it is opened before the set time, the MI will continue its movement towards the open. This indicates that the transition of MI from the closed and compacted state to the intermediate state occurred normally. If the time of the closed contact exceeds the set value, this means that, for example, excessive sealing or damage to the sealing surfaces of the valve IM, 5 that started its movement, stopped the action on the electric drive of the protective device from overload. In this case, the output element 29 form0

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A single logical signal is transmitted through the OR element 28 to the inverse input of the second trigger 14, causing its state to change from direct to inverse, resulting in a flashing display of the second 4 and third 20 position indicators from the signals of the pulse generator 19. At the same time, a single signal from the output of element 29 arrives at the input of element AND 27, allowing passage to the second indicator 4 of the position of the signals from the transducer 30 pulses. The flashing light, the formula of this indicator, depending on the variant of the converter 30, is reduced (increased) signals or signals, as a result of which the duration of the display of the 4 position indicator flashes several times its suppressed state, indicates that the MI stopped at the beginning of the path the reverse of the opening, and the possibility of its movement in the direction of closing, only with the help of a handwheel.

When restoring voltage

If it is necessary to further move the MI towards the open or close bus 12 and 21, the corresponding command Open 5 or Close is given. Depending on the command and the movement of the IM in the position of opening or closing with flashing light, the position indicators 4 and 20 respectively or the position indicator 3 are illuminated, which go into a steady glow when IT reaches its final open or closed sealed position

the invention

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The signaling device consists of a shut-off actuator containing the first and second uneven busbars, three position indicators, six OR elements, three AND elements, the OR-NOT element, two cables, pulse generator, O bus, Close, Stop, and the bus the first end position is connected to one input of the element OR NOT and the first input of the first element OR, the bus of the second end position is connected to the other input

power supply on the drive and the repetition of the element OR NOT and the first inputs

Node sending command on the bus 12 Open the movement of MI towards the open can be continued. At the same time, the second trigger 24 changes its state from inverse to direct again, and the flashing light of the second 4 and third 20 indicators under the influence of signals from the pulse generator 19 is resumed. When the MI reaches its final open position, a single logic signal is created on the bus 8 of the second end position, and both position indicators 4 and 20 are illuminated with a steady light, indicating that they have been fully opened.

If the Stop command is given on the bus 15 before the end of the full opening of the IM, the IM will stop, and the second, third and fourth elements OR, Close will be connected to the second input of the third and the first input of the fifth elements OR, the bus

35 Open connected. with the second inputs of the first and fifth elements OR, the direct and inverse inputs of the first trigger are connected respectively with the outputs of the third and first elements

40 or, the direct input of the second trigger is connected to the output of the fifth OR element, the output of the OR element is NOT connected to the first inputs of the first, second and third elements AND, the direct output of the second trigger is connected to the second inputs of the first and second elements AND the inverse output — with the second input of the third element I, the direct and inverse outputs of the first trigger

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the swarm trigger 14 switches to the inverse 50 are connected respectively to the third

This state, having transmitted through the AND 18 element a single logical signal to the input of the second element OR 2. At the same time, the illumination of the third position indicator 20 stops, and the second position indicator 4 is illuminated with a dim light. The half luminescence of IM infestation indicates an intermediate, half-open state of IM.

formula

If it is necessary to further move the MI towards the open or close bus 12 and 21, the corresponding Open or Close command is given. Depending on the command given and the movement of the MI towards the opening or closing, the position indicators 4 and 20 or the 3 position indicator, which turn into a steady glow when the MI reaches its final open or closed sealed position, flash or blink.

the invention

formula

The device for signaling the state of the shut-off actuator, containing the first and second end position BUS, three position indicators, six OR elements, three AND elements, OR-NOT element, two triggers, pulse generator, Open bus, Close, Stop, and the first bus , the position is connected to one input of the element OR NOT and the first input of the first element OR, the bus of the second end position is connected to another input

the element OR NOT and the first inputs

the second, third and fourth elements OR, tpkna Close is connected to the second input of the third and the first input of the fifth elements OR, bus

5 Open connected. with the second inputs of the first and fifth elements OR, the direct and inverse inputs of the first trigger are connected respectively with the outputs of the third and first elements

0 or, the direct input of the second trigger is connected to the output of the fifth element OR, the output of the element OR is NOT connected to the first inputs of the first, second and third elements AND, the direct output of the second trigger is connected to the second inputs of the first and second elements AND the inverse output — with the second input of the third element I, the direct and inverse outputs of the first trigger

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the inputs of the first and second elements And, the pulse generator is connected to the fourth inputs of the first and second elements And, the output of the first element 5f and And is connected to the first input of the sixth element OR, the output of which is connected to the first position indicator, the output of the third element And is connected to the second input second ele71

OR, the output of which is connected to the second position indicator, the output of the second element AND is connected to the third input of the second OR element and the second input of the fourth OR element, to the output of which a third position indicator is connected, in order to increase the information content of the device an inverter, four AND elements, the seventh OR element, a time delay element, a pulse converter and an information bus, which are connected to the first inputs of the fourth and fifth AND elements, as well as to the inverter input are introduced Ora, the output of which is connected to the third input of the third and the first input of the sixth element I, the output of the element A-B is NOT connected to the second input of the fourth element I, the second input p W.

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This element And is connected to the bus of the first end position and is combined with the second input of the sixth element And, the third input of which is connected to the pulse generator, the output of the fourth element And is connected to the input of the boom output element1 and whose output is connected to the first

the inputs of the seventh element and the seventh element OR, the second input of which is connected to the bus Stop, and its output - with the inverse of the second trigger, the second input of the seventh element I connected to the output of the pulse converter, the elevations of the fifth and sixth elements And are combined and connected with the second input of the first element OR, the output of the seventh element AND is connected to the first input of the second element OR.

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(Pus.1

ViLZ.2

Editor E. Sligan

Compiled by O. Bogomolov

TehredL.Oleinik Proofreader 0.Lugov

Order 388/54 Circulation 544 Subscription

VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

Vuz.3

Claims (1)

15 claims The device for signaling the state of the locking actuator, containing the tires of the first and second final positions, three position indicators, six OR elements, three AND elements, an OR-HE element, two trigger, pulse generators, bus Open, Close, Stop, and 55 tire of the first final position of the possibility of its movement in the direction of closing. using the handwheel only. When restoring the supply voltage to the electric drive and re-issuing the command on the bus 12 Open, the movement of the MI in the opening direction can be continued. In this case, the second trigger 24 again changes its state from inverse to direct, and the blinking glow of the second 4 and third 20 indicators under the influence of signals from the pulse generator 19 is resumed. When the MI reaches its final open position, a single logical signal · will appear on the bus 8 of the second final position, and both position indicators 4 and 20 will be lit evenly, which indicates the complete opening of the MI. If the Stop command is given on the bus 15 before the complete opening of the MI, the MI will stop, and the second trigger 14 will switch inverted to one input of the OR-HE element and the first input of the first OR element, the bus of the second end position is connected to the other input 50 of the OR element -HE and the first inputs of the second, third and fourth OR elements, the Close bus is connected to the second input of the third and the first input of the fifth OR element, the 35 Open bus is connected to the second inputs of the first and fifth OR elements, the direct and inverse inputs of the first the trigger are connected respectively to the outputs of the third and first elements 40 OR, the direct input of the second trigger is connected to the output of the fifth element OR, the output of the element OR-HE is connected to the first inputs of the first, second and third elements AND, the direct output 45 of the second trigger is connected to the second inputs of the first and the second element And, and its inverse output is connected to the second input of the third element And, the direct and inverse outputs of the first trigger are connected to the third state, respectively, by issuing through the element And 18 a single logical signal to the input to of the second element OR 2. In this case, the illumination of the third position indicator 20 will stop, and the second position indicator 4 will light up steadily. The half glow of the MI sign indicates an intermediate half-open state of the MI. the inputs of the first and second elements AND, the pulse generator is connected to the fourth inputs of the first and second elements AND, the output of the first element · 51 and And is connected to the first input of the sixth OR element, the output of which is connected to the first position indicator, the output of the third element And is connected to the second input the second OR element, to the output of which a second position indicator is connected, the output of the second AND element is connected to the third input of the second OR element and the second input of the fourth OR element, to the output of which a third indicator is connected OR position, characterized in that, in order to increase the information content of the device, an inverter, four AND elements, a seventh OR element, a time delay element, a pulse converter and an information bus that is connected to the first inputs of the fourth and fifth AND elements are introduced into it, and with the inverter input, the output of which is connected to the third input of the third and the first input of the sixth element AND, the output of the OR-HE element is connected to the second input of the fourth element And, the second input of the fifth element And is connected to the bus of the first final polo It is connected to the second input of the sixth element And, the third input of which is connected to the pulse generator, the output of the fourth element And is connected to the input of the shutter speed element, the output of which is connected to the first inputs of the seventh element and and the seventh, OR element, the second input of which is connected with the Stop bus, and its output with the inverse input of the second trigger, the second input of the seventh AND element connected to the output of the pulse converter 15, the outputs of the fifth and sixth AND elements combined and connected to the second input of the first OR element , the output of the seventh element AND is connected to the first input of the second OR element.