The control system of the injector spray

 

(57) Abstract:

Usage: machinery, namely, controls the operation of the spray nozzle. The inventive precision sovpadeniya required according to the technology of the time start feeding dose and withdrawal of the shaft in the mixing chamber depends on the parameters of the gear reducer and loads on the shaft from the external environment. After the first turnover and supply of dose loads are reduced, and this is a correction start time of filing the next dose. This provides the offset of the beginning of the dose and synthesizer of time intervals, which approximated the time between pulses from the target zone limit. Synthesizer time intervals on the active interval of the limit defines the starting point of filing dose with electronic adjustment or adjustments. 4 Il.

The invention relates to the field of engineering, namely, controls the operation of the injector spray.

A known control system of the nozzles of the spray, including the contact system, which synchronizes the time of filing dose of water at a particular phase state of the motor-reducer.

This system allows Wye configuration changes of the mechanical contacts.

Known similar system containing mechanical contact group associated with key management. In this case, the water supply is also determined by the configuration of the contact group whose signal is amplified and fed to the actuators. The restructuring of the system in this case is also related to the configuration change of the contact group, which is inconvenient.

Closest to the present invention is a control system of the injector spray containing temporary and synchronizing the device and the keys of the control and input terminals of the control signals PAUSE, IRRIGATION DOSE, SYSTEM START-up and output terminals of the CONTROL gear reducer and PUMP CONTROL. In this case, the synchronization is carried out by removing the signal from the contact group, but the running gear is carried by the electronic circuit, allowing for the easy change system settings.

The proposed technical solution in this case corresponds to the next concept. For optimal promesa in the mixing chamber, the liquid dose is served in the second or third quarter of the turnover of the shaft of the gear reducer. The accuracy of the match required by technic from the angular velocity of the gear reducer, speed set speed of the engine after starting, and the presence of mechanical stress environment on the shaft before promesa. After the first turn and the filing of the dose load on the reducer to decrease, because the necessary correction start time of the filing of the dose. Next, the control system can be put into automatic mode of long-term maintenance of the mixture with the ability to quickly change mode at any time. Thus, the first quarter turn of the gear reducer is critical to approximate accurately the time of filing of the dose. To reduce errors in the control system introduced corrector beginning dose (CLP) to analyze the passage of the beginning and the end zone Sadovod rigidly mounted on the axis of the gear reducer movable contact of the limit. The time between pulses from the target zone limit is approximated in the KND, and produces the control signals to the synthesizer time intervals (LIGHT). We MEET on the active interval limit defines the starting point of filing dose with electronic adjustment or adjustments. The control system allows to increase the accuracy of determining the moment of submission of the dose and to minimize the influence of milling is Adam temperatures and aggressive environments. Therefore, the traditional use of electrolytic capacitors large capacitance and analog timers to generate time intervals gives the reduced stability at high temperature of the working environment and the supply voltage.

In the proposed control system is introduced controlled synthesizer time intervals (LIGHT). Specifies the element of the reference oscillator LIGHT may be a quartz crystal resonator or ceramic capacitor with a small capacity.

Increased robustness is achieved by introducing the synchronizer control commands (SKU) for this impact on CLP and LIGHT. The coincidence of the logical adders enabling signal from the SCU and the time interval from the LIGHT after passing the sync pulse starts the keys of the control actuators. The impact of impulse noise is blocked by a node of the SSI and after a failover commands control the system enters a steady idle. In standby mode, operates a multi-level system of locks from the receipt of incorrect sequences of control commands. SKU remembers the incoming commands and executes them in sequence.

In order izobrazheniya goal is achieved by that temporary and synchronizing the device is made in the form of a controlled synthesizer time intervals, the offset start time of filing the dose selector commands for automatic feed dose, synchronizer control commands, the logical threshold of the electronic key of protection, logical adder key electronic protection against short circuit and logic adder to generate a signal enable key engine start feed pump doses, and the input terminals of the signal PAUSE, IRRIGATION DOSE and START of the SYSTEM are connected to the corresponding inputs of the synthesizer control commands, the first and second outputs of which are connected respectively to the inputs of the offset time of commencement of injection dose and the output of the sync pulse associated with the synchronization input controlled DISCHARGE, the output time interval of operation of start relay gear reducer and the output of the analysis of the beginning of the mentioned interval of the SSI for automatic submission of dose associated with the first input logical threshold of the electronic key of protection, with a second input of which is connected to the output of the key protection against short circuit in the load circuit lines running gear reducer, and the output of the mentioned logical key and the output enabling signal is you key start relay gear reducer and then after key associated with the terminal ENABLE START RELAY gear reducer, the output signal equal to the time interval of operation of the feed motor doses managed LIGHT and the signal output mode of the SSI to the corresponding inputs of the logical adder to generate a signal enable key engine start feed pump dose, the output of which is mentioned by key connected to the terminal PUMP CONTROL, in addition, the output of the electronic key of protection from Q3 in the load circuit of the gear reducer is connected to the input of the initial installation of the SSI, which has in common with the selector control commands for automatic submission of entrance dose PAUSE, its inputs are also associated with the installation of the inputs of the latter, and outputs the above-mentioned selector connected to the inputs of the RESET and MODE AUTOMATIC FEEDER DOSE, and clock and setting the inputs of the offset of the beginning of the doses associated with the corresponding outputs of the generator LIGHT, and the output of the KND communicated with the input set select the desired quantum of LIGHT.

In Fig. 1 presents the General scheme of the system of Fig.2 diagram of the selector of the automatic mode and synchronizer control commands; Fig.3 synthesizer time intervals and the offset of the beginning of the dose; Fig.4 the contact group of the gear reducer.

The system includes charge of the management for automatic submission of doses in the PAUSE mode, (RAA), the synchronizer 4 control commands (SKU), a secondary power source 5 with elements suppression of impulse noise and protection from pereproshivka, threshold logical key 6 electronic security, logical adder 7 to generate a signal enable key start relay gear reducer, electronic key 8 on the part of powerful transistor to start relay gear reducer, transistor switch 9 electronic short-circuit protection in the circuit load OUT, logical adder 10 to generate a signal enable key engine start feed pump dose indicator 11 transition system is operating in mode SAR, powerful electronic key 12 for some minutes from city centre3, OUT start the engine feed pump doses elements 13 initial setup (reset) system and electronic security, terminal 14 input control signal from the PAUSE mode, the terminal 15 a DOSE, the terminal 16 of the input signal from the limit switch 16, the terminal 17, and " - " terminal 18 outputs to supply power to the pump motor doses, terminal 19 is output to the relay running gear reducer, the terminal 20 to connect the positive conductor from the power source, the motor 21 of the pump for feeding the dose of fluid, the relay 22 running gear reducer, switch 23 to mode selection, the contact group 24, the engine 25 meteodata after starting, terminals 27 connect the primary power source, an area of 28 pads of resignation to the initial position of the gear reducer when disconnecting relay 22 start, zone 29 deceleration gear reducer for short winding engine (instantaneous stop), when the relay 22 area is ignored, the initial position 30, the movable contact 31 of the limit switch is fixed on the axis of the gear reducer, axle (shaft) gear reducer 32.

The destination output modules.

Synthesizer time intervals:

A1, A2 connection of resistor correction start time dose (TDPfrom the original position of the footer).

A3,A4 adjusting the length of the feed rate (or the injection).

A4,A5 adjustment of the duration of the pause between inclusions of the gear reducer.

A6 output synchronizing pulse (reset) LIGHT.

A7 signal output time interval of operation of start relay gear reducer (TRMdepends on mode of operation).

A8 output signal equal to the time interval of operation of the feed motor doses (or nozzles).

Time correction start feeding dose:

B1 log analysis zones limit switch.

B2 input signals the input analysis time interval of operation of start relay gear reducer.

The synchronizer control commands:

D1 input (POS.14).

D2 input (POS.15)

D3 input (POS.16)

D4 input signal the beginning of the active zone-Sadovod the end, prepared with input D3.

D5 output signal of the mode of operation for CLP and LIGHT.

D6 output of the sync pulse.

D output enabling signal for the nodes of the relay switch start gear reducer.

D exit key on OUT to activate the indicator system is in the automatic feeder dose in the PAUSE mode.

D9 input initial setup (reset) when the power is turned on (or the presence of a short circuit in the circuit of the start relay).

The system works as follows.

The PAUSE mode, fixed mode. Input 1, you receive a "1" which is inverted on DD.2 to "0", and is supplied to the first input DD.1. With the output Q of D-flip-flop D.1 "0" is supplied to the second input DD.1, and the input key D.DD.1 output generates a "1", which opens the key D.1 to send "0" to the input standby multivibrator DD.2, producing a single synchronizing pulse LIGHT (see output D6). This DD.2 allows the element DD.4 skip time interval from the output A7 LIGHT running relay gear reducer 22. After processing per the SHL is set by the element R3 LIGHT 1, the "1" at the output D5 of the SSI 4 through input B2 KND 3 sets mode LIGHT 1 and blocks on the element DD.3 filing dose. Exit when the signal D1, is equal to a logical "0".

The mode DOSE WITH PROMESA mode without committing the BUTTON. When at any time (and in any other mode) input 2 logic "1" is written D-trigger D.2. If this input signal D3 is "0" then he inverters through DD,5 V logic "1", is supplied to the reset input of the RS-latch D.1 and permits the transmission without recording output Q D.2 a logical "0" input-independent D.1 key D.2, which starts waiting multivibrator DD.2 to generate a sync pulse, while a logical "0" with DD.2 is inverted element DD.3 in the logical "1" is input to record D-flip-flop D.1-commit mode DOSE WITH PROMESA. The signals from the outputs D.1 arrange passage LIGHT 1 mode DOSE WITH PROMESA and allow the meter to the shift register DD.1 after It turns to generate the pulse reset mode on the elements D.1 and DD.3. Reset DD.2 and the expense of speed of the shaft of the gear reducer is the second control pulse, prepared from the output signal D3 on standby multivibrator DD.1. One turn is only one portion of doses the next circulation, when this clock pulse from DD.2 adjusts the counter D.1.

Mode combined DOSE WITH PROMESA in the PAUSE mode is achieved by holding the arm in mode IV mode III and releasing the handle.

Analysis of this sequence of commands does the RAA 3, all the signals of the States of the system produces SKU 4, and LIGHT 1 through the input of C1 synchronizes the flow of the dose in the PAUSE mode. RS-latch D.3 together with the E-trigger D.2 form the pulse of the passage required for this mode commands and translate the output DD.4 in the state of logical "1", while the one-shot on DD.2 is a possibility when the input signal S1 of the beginning of the PAUSE mode, to produce a short pulse to force run through the S-D.2 mode DOSE WITH PROMESA.

After the time allotted for breaks, the next pulse from the RAA 3 will again run through DD.2 mode DOSE WITH PROMESA, when this switch maximum speed on DD.3, D.4 and DD.3 can provide different from the number of revolutions of the motor 25 of the gear reducer. The mode indication provide OUT and H1. Exit occurs by setting the mode switch 23 is in position "0".

The work is managed is of Italia ARTICLE on DD the frequency of the reference generator of rectangular pulses at the element G,C1 and R1-R5 is divided into four bars.

In each step of the bidirectional key-DD 2. 1-3 opening operation of the installation (adjustment) of the resistors R1, R2, R3 set the desired frequency of the reference oscillator G D. Key D.4 depending on the signal status at the output KND 2 may suspend on the first or third beat of the operation of the reference generator of G. the Elements D.1 and DD.2 highlight the required cycles for a synthesis time intervals taking into account the correction signals from KND 2 and modes of the SSI 4.

The use of the proposed system can significantly improve the accuracy and to improve operational parameters, which makes this system more efficient in operation than all known.

The control SYSTEM of the INJECTOR SPRAY containing temporary and synchronizing the device and the keys of the control and input terminals of the control signals PAUSE, IRRIGATION DOSE, SYSTEM START-up and output terminals of the CONTROL gear reducer, CONTROL of the PUMP, characterized in that the temporary and synchronizing the device is made in the form of a controlled synthesizer time intervals, the offset start time of filing the dose selector control commands for automatic submission dose synchronizaton protection against short circuit and logic adder to generate a signal enable key engine start feed pump dose the input terminals of the control signals PAUSE, IRRIGATION DOSE and START of the SYSTEM are connected to the corresponding inputs of the synchronizer control commands, the first and second outputs of which are connected respectively to the inputs of the offset start time of the filing of the dose, and the output of the sync pulse associated with the synchronization input of the controlled synthesizer time intervals, the output time interval of operation of start relay gear reducer which the output of the analysis of the beginning of the mentioned interval selector control commands for automatic submission of dose associated with the first input logical threshold of the electronic key of protection, with a second input of which is connected to the output of the key protection against short circuit in the load circuit lines running gear reducer, and the output of the mentioned threshold logical key and the output enabling signal for the nodes of the relay switch start gear reducer connected to the inputs of the logical adder enable key start relay gear reducer and then after key associated with the terminal ENABLE START RELAY gear reducer, the output signal equal to the time interval of operation of the feed motor dose controlled synthesizer time intervals and the output signal of the mode synchronizati enable key engine start feed pump dose the output of which is mentioned by key connected to the terminal PUMP CONTROL, in addition, the output of key electronic protection against short circuit in the load circuit of the gear reducer is connected to the input of the initial installation of the synchronizer control commands, which has in common with the selector control commands for automatic submission dose terminals input PAUSE, its inputs are also associated with the installation of the inputs of the latter, and outputs the above-mentioned selector connected to the inputs of the RESET and MODE AUTOMATIC FEEDER DOSE, and clock and setting the inputs of the offset of the beginning of the doses associated with the corresponding outputs of the generator synthesizer time intervals, and the output of the offset of the beginning of doses reported to the entrance of the installation, select the desired quantum synthesizer time intervals.

 

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