CN207964980U - A kind of solenoid valve failure device for fast detecting - Google Patents
A kind of solenoid valve failure device for fast detecting Download PDFInfo
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- CN207964980U CN207964980U CN201820269795.XU CN201820269795U CN207964980U CN 207964980 U CN207964980 U CN 207964980U CN 201820269795 U CN201820269795 U CN 201820269795U CN 207964980 U CN207964980 U CN 207964980U
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Abstract
The utility model discloses a kind of solenoid valve failure device for fast detecting, including the DC current transmitter being set in solenoid valve control circuit on the power cord of 24V DC power supplies, DC current transmitter is connect with analog-digital converter signal, analog-digital converter is connect with the PLC control system signal of control intermediate relay break-make, the DC current transmitter detecting the current parameter in power cord in real time, and the current parameter detected is converted into current analog signal and is sent to analog-digital converter, the current analog signal that modulus changes converter to send DC current transmitter is converted into current digital signal and is sent to PLC control system, the PLC control system is to the current digital signal real-time display that sends analog-digital converter on the control display interface of PLC control system.The utility model has the advantages that:It is electrical malfunction or hydraulic system fault that solenoid valve can be quickly detected from automatically, and time saving and energy saving and fault detection efficiency is high.
Description
Technical field
The utility model is related to Solenoid Valve Technology fields, and in particular to a kind of solenoid valve failure device for fast detecting.
Background technology
Solenoid valve is widely used in ironmaking production equipment, for adjusting the direction of hydraulic oil, flow, speed in fluid pressure line
Degree etc., to realize the high-precision control to hydraulic valve.In solenoid valve control circuit, electromagnetic valve coil and intermediate relay
It is connected on 24V DC power supplies by power cord after contact sets series connection, the coil of intermediate relay is connected with PLC control system.
When work, PLC control system controls the contact sets break-make of center-off device by the coil of intermediate relay, makes electromagnetic valve coil
Electric or dead electricity is obtained, to which drive magnetic valve acts.During solenoid valve use, solenoid valve inevitably will appear failure and can not be just
Often work, after solenoid valve breaks down, needs the electrical system and hydraulic pressure system that expend a large amount of labor and time to solenoid valve
System is detected, and can just detect that solenoid valve is due to electrical systems such as intermediate relay, tag, electromagnetic valve plugs
Failure caused by aspect, or the failure caused by the hydraulic systems such as spool card resistance, oil product aspect, the side of this artificial detection
Formula is not only time-consuming and laborious, but also the efficiency for detecting failure is very low, influences production efficiency.
Utility model content
The purpose of this utility model be to provide it is a kind of can be quickly detected from automatically solenoid valve be electrical malfunction or
The solenoid valve failure device for fast detecting of hydraulic system fault.
To achieve the above object, the utility model uses following technical solution:A kind of solenoid valve failure is quick
Detection device, including the DC current transmitter that is set in solenoid valve control circuit on the power cord of 24V DC power supplies, direct current
Current transducer is connect with analog-digital converter signal, and analog-digital converter and the PLC control system of control intermediate relay break-make are believed
Number connection, the DC current transmitter is to the current parameter that detects the current parameter in power cord in real time and will detect
It is converted into current analog signal and is sent to analog-digital converter, the modulus changes converter to send DC current transmitter
Current analog signal is converted into current digital signal and is sent to PLC control system, and the PLC control system is to by analog-to-digital conversion
The current digital signal real-time display that device is sent is on the control display interface of PLC control system.
Further, a kind of solenoid valve failure device for fast detecting above-mentioned, wherein:DC current transmitter is by solenoid valve
24V DC power supplies power supply in control circuit.
Further, a kind of solenoid valve failure device for fast detecting above-mentioned, wherein:DC current transmitter passes through first
Signal wire is connected with analog-digital converter.
Further, a kind of solenoid valve failure device for fast detecting above-mentioned, wherein:Analog-digital converter passes through second signal
Line is connect with PLC control system signal.
Further, a kind of solenoid valve failure device for fast detecting above-mentioned, wherein:It is provided in PLC control system
Power failure alarm modules.
Through the implementation of the above technical solution, the utility model has the beneficial effects that:It can be quickly detected from electromagnetism automatically
Valve is the failure caused by the electrical systems such as intermediate relay, tag, electromagnetic valve plug aspect, or due to valve
Failure caused by terms of the hydraulic systems such as core card resistance, oil product, easy to operate, time saving and energy saving and fault detection efficiency is high, effectively drops
Low solenoid valve failure is influenced caused by production.
Description of the drawings
Fig. 1 is a kind of operation principle schematic diagram of solenoid valve failure device for fast detecting described in the utility model.
Specific implementation mode
The utility model is described in further detail in the following with reference to the drawings and specific embodiments.
As shown in Figure 1, a kind of solenoid valve failure device for fast detecting, including be set in solenoid valve control circuit
DC current transmitter 3 on the power cord 2 of 24V DC power supplies 1, DC current transmitter 3 pass through the first signal wire 4 and modulus
5 signal of converter connects, the PLC control system 8 that analog-digital converter 5 passes through second signal line 6 and control 7 break-make of intermediate relay
Signal connects, and the DC current transmitter 3 is to the electric current that detects the current parameter in power cord 2 in real time and will detect
Parameter transform is sent to analog-digital converter 5 at current analog signal, and the modulus changes converter 5 to by DC current transmitter
3 current analog signals sent are converted into current digital signal and are sent to PLC control system 8, the PLC control system 8 to
The current digital signal real-time display that analog-digital converter 5 is sent is 81 on the control display interface of PLC control system 8;At this
In embodiment, DC current transmitter 3 is powered by the 24V DC power supplies 1 in solenoid valve control circuit, can reduce enterprise in this way
Use cost;In the present embodiment, it is provided with power failure alarm modules 82 in PLC control system 8, works as PLC control system
When not receiving the current digital signal of analog-digital converter transmission, PLC control system can be sent to power failure alarm modules 82
Alarm signal, power failure alarm modules 82 can send out alarm after receiving the alarm signal that PLC control system is sent, make work
Personnel can have found and repair in time, improve production security;
The operation principle of the utility model is as follows:
When solenoid valve 9 do not break down and can normal use when, coil 71 that PLC control system 8 passes through intermediate relay 7
72 break-make of contact sets for controlling center-off device 7, makes 9 coil of solenoid valve obtain electric or dead electricity, to which drive magnetic valve 9 acts, into
And hydraulic valve 10 is driven to act;During solenoid valve normal use, DC current transmitter 3 can detect in power cord 2 in real time
Current parameter and the current parameter detected be converted into current analog signal be sent to analog-digital converter 5, modulus changes conversion
The current analog signal received is simultaneously converted by the current analog signal of 3 transmission of the meeting real-time reception DC current of device 5 transmitter
Current digital signal is sent to PLC control system 8, the electric current number that the meeting real-time reception of PLC control system 8 analog-digital converter 5 is sent
Word signal and by the current digital signal real-time display received 81 on the control display interface of PLC control system 8, in this way
Worker can understand the variation feelings of electric current in solenoid valve control circuit in real time on the control display interface 81 of PLC control system 8
Condition;
When solenoid valve 9 breaks down when can not work normally, worker only need to show boundary in the control of PLC control system 8
Valve opening or shutdown command are sent out to solenoid valve manually on face 81, PLC control system 8 is made to control the contact of intermediate relay 7 again
Group 72 break-makes, when the current values in the solenoid valve control circuit shown on the control display interface 81 of PLC control system 8 have it is prominent
When so increasing, then judge that solenoid valve is the failure caused by the hydraulic systems such as spool card resistance, oil product aspect at this time, when PLC is controlled
When current values in the solenoid valve control circuit shown on the control display interface 81 of system 8 processed do not increase suddenly, then sentence
Disconnected solenoid valve at this time is the failure caused by the electrical systems such as intermediate relay, tag, electromagnetic valve plug aspect;
By quick and precisely judging that solenoid valve is electrical malfunction or hydraulic system fault, enable worker rapidly to solenoid valve
It is pointedly repaired, greatly reduce solenoid valve failure influences caused by production;
In electromagnetic valve controlling system operational process, when PLC control system does not receive the electric current of analog-digital converter transmission
When digital signal, PLC control system can send alarm signal to power failure alarm modules 82, and power failure alarm modules 82 connect
Alarm can be sent out after receiving the alarm signal of PLC control system transmission, staff is enable to find in time and to 24V DC power supplies
It repairs.
The utility model has the advantages that:It is due to intermediate relay, cable termination that solenoid valve can be quickly detected from automatically
Failure caused by terms of the electrical systems such as connector, electromagnetic valve plug, or due to drawing in terms of the hydraulic systems such as spool card resistance, oil product
The failure risen, easy to operate, time saving and energy saving and fault detection efficiency is high, effectively reduces solenoid valve failure shadow caused by production
It rings.
Claims (7)
1. a kind of solenoid valve failure device for fast detecting, it is characterised in that:Including being set to 24V direct currents in solenoid valve control circuit
DC current transmitter on the power cord of power supply, DC current transmitter are connect with analog-digital converter signal, analog-digital converter
It is connect with the PLC control system signal of control intermediate relay break-make, the DC current transmitter detecting power supply in real time
The current parameter detected is simultaneously converted into current analog signal and is sent to analog-digital converter, the mould by current parameter in line
The current analog signal that number changes converter to send DC current transmitter is converted into current digital signal and is sent to PLC controls
System processed, the PLC control system is to the current digital signal real-time display that sends analog-digital converter in PLC control system
Control display interface on.
2. a kind of solenoid valve failure device for fast detecting according to claim 1, it is characterised in that:DC current transmitter
By the 24V DC power supplies power supply in solenoid valve control circuit.
3. a kind of solenoid valve failure device for fast detecting according to claim 1 or 2, it is characterised in that:Direct current rheology
Device is sent to be connected with analog-digital converter by the first signal wire.
4. a kind of solenoid valve failure device for fast detecting according to claim 1 or 2, it is characterised in that:Analog-digital converter
It is connect with PLC control system signal by second signal line.
5. a kind of solenoid valve failure device for fast detecting according to claim 1 or 2, it is characterised in that:It is controlled in PLC and is
Power failure alarm modules are provided in system.
6. a kind of solenoid valve failure device for fast detecting according to claim 3, it is characterised in that:In PLC control system
In be provided with power failure alarm modules.
7. a kind of solenoid valve failure device for fast detecting according to claim 4, it is characterised in that:In PLC control system
In be provided with power failure alarm modules.
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CN201820269795.XU CN207964980U (en) | 2018-02-26 | 2018-02-26 | A kind of solenoid valve failure device for fast detecting |
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CN201820269795.XU CN207964980U (en) | 2018-02-26 | 2018-02-26 | A kind of solenoid valve failure device for fast detecting |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108267658A (en) * | 2018-02-26 | 2018-07-10 | 江苏永钢集团有限公司 | A kind of solenoid valve failure device for fast detecting |
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2018
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
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CN108267658A (en) * | 2018-02-26 | 2018-07-10 | 江苏永钢集团有限公司 | A kind of solenoid valve failure device for fast detecting |
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