CN113804990A - Low-voltage direct-current electromagnetic valve fault judgment and detection tool - Google Patents
Low-voltage direct-current electromagnetic valve fault judgment and detection tool Download PDFInfo
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- CN113804990A CN113804990A CN202010539235.3A CN202010539235A CN113804990A CN 113804990 A CN113804990 A CN 113804990A CN 202010539235 A CN202010539235 A CN 202010539235A CN 113804990 A CN113804990 A CN 113804990A
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- 238000001514 detection method Methods 0.000 title claims abstract description 89
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000003745 diagnosis Methods 0.000 claims 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000005065 mining Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15B—SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; FLUID-PRESSURE ACTUATORS, e.g. SERVOMOTORS; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR
- F15B19/00—Testing; Calibrating; Fault detection or monitoring; Simulation or modelling of fluid-pressure systems or apparatus not otherwise provided for
- F15B19/005—Fault detection or monitoring
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
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- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Fluid Mechanics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Magnetically Actuated Valves (AREA)
- Indication Of The Valve Opening Or Closing Status (AREA)
Abstract
The invention relates to a fault judgment and detection tool for a low-voltage direct-current electromagnetic valve, which comprises a fault judgment device, a charging power supply device and a circuit detection device, wherein the fault judgment device and the circuit detection device are connected with the charging power supply device, and the fault judgment device is provided with a selection switch, a fault judgment device socket and a telescopic detection rod. By applying the scheme, the coil of the electromagnetic valve and the control voltage value can be clearly detected, and the electric and hydraulic faults can be rapidly diagnosed; the detection tool is suitable for line detection of various direct current solenoid valves, saves time and is accurate in detection, and the use efficiency and the stability are good.
Description
Technical Field
The invention relates to a detection tool, in particular to a low-voltage direct-current solenoid valve fault judgment detection tool, and belongs to the field of detection of electro-hydraulic control valves.
Background
The underground mining equipment of Meishan mining division is controlled by adopting electro-hydraulic integration, and the quality of the electromagnetic valve depends on two aspects: the second coil is a valve body, namely an electrical or hydraulic fault; the existing electromagnetic valve quality detection is divided into two steps, firstly, the quality is judged by adopting the voltage of a voltage measuring plug of a universal meter, because the plug hole of the electromagnetic valve is very small, the voltage and the line quality cannot be directly detected by the universal meter, a thin copper wire is required to be inserted into the hole during each maintenance, and a meter stick of the universal meter is used for contacting the thin copper wire for detection, so that time is consumed, and errors are easy to occur; the second step adopts universal meter resistance shelves to measure solenoid valve coil resistance, can judge through the resistance size that the coil is good or bad, but the solenoid valve coil resistance is changed after using a period in the real production, but can satisfy the production requirement, and secondly the present solenoid valve is many shapes as an organic whole different, and current method just can not detect, and the mounted position coil of adding the valve all is difficult to pull down the detection again, so an urgent need is a quick judgement solenoid valve trouble and detection instrument.
Disclosure of Invention
The invention provides a low-voltage direct-current solenoid valve fault judging and detecting tool aiming at the problems in the prior art, and the technical scheme realizes that only one detecting tool is needed under the condition of not dismounting a solenoid valve in equipment, the fault type of the solenoid valve can be correctly judged as long as the solenoid valve is close to the solenoid valve, and the coil resistance value and the power supply voltage of the solenoid valve can be correctly displayed.
In order to achieve the above object, according to an aspect of the present invention, a fault determination and detection tool for a low-voltage dc solenoid valve includes a fault determination device, a charging power supply device, and a circuit detection device, and both the fault determination device and the circuit detection device are connected to the charging power supply device.
As an improvement of the invention, the fault judging device is provided with a selection switch, a fault judging device socket and a telescopic detection rod.
As a modification of the invention, the charging power supply device comprises a DC24V rechargeable power supply, a charging socket and an output plug are arranged on the surface of the charging power supply device, and the fault judgment device socket is connected with the output plug.
As an improvement of the present invention, the circuit detection device comprises a circuit detection socket, a resistance display, a voltage detection plug and a resistance detection socket, wherein the socket of the circuit detection device is connected with the power output plug, and the coil resistance value can be displayed on the resistance display by respectively connecting the solenoid valve coil with the resistance detection socket; the original socket line of the electromagnetic valve is connected with the voltage detection plug, so that the voltage value of the equipment can be displayed on the voltage display.
The fault judgment device is also internally provided with a positive pulse diode and a negative pulse diode, and the positive pole of the DC24V power supply is connected with the selection switch; the negative electrode of a DC24V power supply is connected with the lower end of a coil of the solenoid valve, and the upper end of the selection switch is connected with the positive pulse diode; the lower end of the selection switch is connected with the negative pulse diode; the solenoid valve coil can only be energized when the upper end of the selector switch is connected to the positive pulse diode.
The detection method comprises the following steps: firstly, a fault judging device is connected with a rechargeable power supply of DC24V, then a detection circuit is connected at two ends of a solenoid valve coil, telescopic detection is used for touching the solenoid valve coil, whether suction force exists or not is observed, whether a valve core moves or not is observed, if the suction force does not exist, electrical fault exists, if the suction force does not exist, mechanical (hydraulic) fault exists, the valve core needs to be cleaned, and a hydraulic circuit is checked. When the electrical fault connects the socket of the circuit detection device with the rechargeable power supply of the DC24V, and then the plug of the electromagnetic valve is pulled down to be respectively connected with the plug and the socket of the detection device, the coil resistance value of the electromagnetic valve is displayed on the resistance digital display; the voltage digital display displays the supply voltage. Checking the power supply line if there is no voltage indication; if the resistance value is abnormal, the solenoid valve coil needs to be replaced, so that the electrical fault is eliminated.
Compared with the prior art, the invention has the advantages that 1) through the application of the invention, the coil and the control voltage value of the electromagnetic valve can be clearly detected, and the electric and hydraulic faults can be rapidly diagnosed; 2) the detection tool is suitable for line detection of various direct current solenoid valves, is time-saving and accurate in detection, and is good in use efficiency and stability; 3) the detection tool has the advantages of small structure, convenience in carrying and use, wide application range and high popularization and application value.
Drawings
FIG. 1 is a schematic view of a solenoid valve detection tool;
FIG. 2 is a schematic circuit diagram of a solenoid valve detection tool;
FIG. 3 is a state diagram illustrating solenoid valve fault handling;
in the figure: 1. a charging socket; 2. a rechargeable power supply DC 24V; 3. an output plug; 4. a fault-judging device socket; 5. a failure judgment device; 6. a retractable detection rod; 7. a selector switch; 8. externally connecting a detection circuit; 9. a circuit detection socket; 10. a circuit detection device; 11. a resistive display; 12. a voltage display; 13. a voltage detection plug; 14. a resistance detection socket; 15. solenoid valve coil, 16, positive pulse diode; 17. and a negative pulse diode.
The specific implementation mode is as follows:
for the purpose of enhancing an understanding of the present invention, the present embodiment will be described in detail below with reference to the accompanying drawings.
Example 1: referring to fig. 1, a low-voltage dc solenoid valve failure judgment and detection tool comprises a failure judgment device 5, a charging power supply device and a circuit detection device 10, the failure judgment device 5 and the circuit detection device 10 are connected with a charging power supply device, the failure judgment device 5 is provided with a selection switch 7, a failure judgment device socket 4 and a telescopic detection rod 6, the charging power supply device comprises a DC24V rechargeable power supply 2, a charging socket 1 and an output plug 3 are arranged on the surface of the rechargeable power supply, a fault judgment device socket 4 is connected with the output plug 3, the circuit detection device comprises a circuit detection socket 9, a resistance display 11, a voltage display 12, a voltage detection plug 13 and a resistance detection socket 14, wherein the socket 9 of the circuit detection device 10 is connected with the power output plug 3, and a coil resistance value of the coil can be displayed on the resistance display 11 by respectively connecting the solenoid valve coil with the resistance detection socket 14; the original socket line of the solenoid valve is connected with the voltage detection plug 13, so that the voltage value of the equipment can be displayed on the voltage display 12. When the electromagnetic valve fault type detection device is used, the fault judgment device is connected with a power supply, a detection circuit is connected to the electromagnetic valve coil, the telescopic detection rod is contacted with the electromagnetic valve coil, the fault type of the electromagnetic valve is judged according to the suction force, if the suction force exists, the hydraulic fault exists, and if the suction force does not exist, the electrical fault exists. The electromagnetic valve plug is pulled down, the electromagnetic valve coil and the power socket are respectively connected with the plug and the socket on the circuit detection device, then the circuit detection device is connected with a power supply, and the resistance digital display meter and the voltage digital display meter can accurately display the resistance value of the coil of the electromagnetic valve and the power supply voltage.
The working process is as follows: referring to fig. 1-3, a tool for determining and detecting a failure of a solenoid valve is capable of rapidly displaying a value of a coil of the solenoid valve and rapidly displaying a power voltage of the solenoid valve. The battery used by the detection tool is a 24VDC chargeable power supply, and the detection tool is integrally designed as shown in figures 1 and 2:
in fig. 1, DC24V can charge power supply 2, and has charging socket 1 and output plug 3. The socket 4 of the fault judging device 5 is connected with the power output plug 3, an external detection circuit 8 is connected with a solenoid valve coil, a selection switch 7 on the fault judging device 5 is connected with a circuit in the device, the telescopic detection rod 6 is contacted with the solenoid valve coil, if suction exists, mechanical (hydraulic) faults can be judged, and if suction does not exist, electrical faults are judged. The socket 4 of the failure determination device 5 is disconnected from the power output plug 3. The electrical fault is detected by using the circuit detection device 10, the socket 9 of the circuit detection device 10 is connected with the power output plug 3, and the coil resistance value of the coil can be displayed on the resistance display 11 by respectively connecting the solenoid valve coil with the resistance detection socket 14; the original socket line of the electromagnetic valve is connected with the voltage detection plug 13, so that the voltage value of the equipment can be displayed on the voltage display 12
In fig. 2, the positive pole of the DC24V power supply 2 is connected to the selection switch 7; the negative pole of the DC24V power supply 2 is connected with the lower end of the coil of the solenoid valve coil 15. The upper end of the selection switch 7 is connected with a positive pulse diode 16; the lower end of the selection switch 7 is connected with a negative pulse diode 17; the solenoid coil 15 can only be energized when the upper end of the selector switch 7 is connected to the positive pulse diode 16.
In fig. 3, nine steps from beginning to end are total, wherein the fifth step judges the failure type of the electromagnetic valve, and the later steps are processed according to the failure type. Firstly, a fault judging device 5 is used for connecting with a DC24V rechargeable power supply 2, then a detection circuit 8 is connected to two ends of a solenoid valve coil 19, a telescopic detection rod 6 is used for touching with the solenoid valve coil 15, whether suction force exists or not and whether a valve core moves or not are observed, if the suction force does not exist, electrical fault exists, if the suction force does not exist, mechanical (hydraulic) fault exists, the valve core needs to be cleaned, and a hydraulic circuit is checked.
The socket 4 of the circuit detection device 10 is connected with the rechargeable power supply 2 of the DC24V in case of electrical fault, then the plug of the electromagnetic valve is pulled down and is respectively connected with the plug and the socket of the detection device, and the resistance value of the coil of the electromagnetic valve is displayed on a resistance digital display; the voltage digital display displays the supply voltage. Checking the power supply line if there is no voltage indication; if the resistance value is abnormal, the solenoid valve coil needs to be replaced, so that the electrical fault is eliminated.
It should be noted that the above-mentioned embodiments are not intended to limit the scope of the present invention, and all equivalent modifications and substitutions based on the above-mentioned technical solutions are within the scope of the present invention as defined in the claims.
Claims (6)
1. The utility model provides a low pressure direct current solenoid valve fault diagnosis detection instrument which characterized in that, detection instrument includes fault diagnosis device, charging source device and circuit detection device, fault diagnosis device and circuit detection device all are connected with charging source device.
2. The tool according to claim 1, wherein the fault determining device comprises a selection switch, a socket of the fault determining device and a retractable detecting rod.
3. The tool according to claim 1, wherein the charging power device comprises a DC24V rechargeable power source, a charging socket and an output plug are mounted on the surface of the tool, and the fault determination device socket is connected to the output plug.
4. The tool for determining and detecting the fault of the low-voltage direct-current solenoid valve according to claim 1, wherein the circuit detection device comprises a circuit detection socket, a resistance display, a voltage detection plug and a resistance detection socket, the socket of the circuit detection device is connected with a power output plug, and a coil resistance value can be displayed on the resistance display by respectively connecting the solenoid valve coil with the resistance detection socket; the original socket line of the electromagnetic valve is connected with the voltage detection plug, so that the voltage value of the equipment can be displayed on the voltage display.
5. The tool for judging and detecting the fault of the low-voltage direct-current electromagnetic valve according to claim 1, wherein a positive pulse diode and a negative pulse diode are further arranged in the fault judging device, and the positive pole of a DC24V power supply is connected with a selection switch; the negative electrode of a DC24V power supply is connected with the lower end of a coil of the solenoid valve, and the upper end of the selection switch is connected with the positive pulse diode; the lower end of the selection switch is connected with the negative pulse diode; the solenoid valve coil can only be energized when the upper end of the selector switch is connected to the positive pulse diode.
6. The detection method of the fault judgment and detection tool adopting the low-voltage direct-current electromagnetic valve according to any one of claims 1 to 5 is characterized by comprising the following steps: firstly, a fault judging device is used for connecting with a DC24V rechargeable power supply 2, then a detection circuit is connected to two ends of a solenoid valve coil, a telescopic detection rod is used for touching the solenoid valve coil to observe whether suction exists or not, whether a valve core acts or not, if the suction does not exist, electrical fault exists, if the suction does not act, mechanical (hydraulic) fault exists, the valve core needs to be cleaned, and a hydraulic circuit is checked; when the electrical fault connects the socket of the circuit detection device with the rechargeable power supply of the DC24V, and then the plug of the electromagnetic valve is pulled down to be respectively connected with the plug and the socket of the detection device, the coil resistance value of the electromagnetic valve is displayed on the resistance digital display; displaying the supply voltage on a voltage digital display; checking the power supply line if there is no voltage indication; if the resistance value is abnormal, the solenoid valve coil needs to be replaced, so that the electrical fault is eliminated.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010539235.3A CN113804990B (en) | 2020-06-14 | 2020-06-14 | Low-voltage direct-current electromagnetic valve fault judging and detecting tool |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010539235.3A CN113804990B (en) | 2020-06-14 | 2020-06-14 | Low-voltage direct-current electromagnetic valve fault judging and detecting tool |
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| Publication Number | Publication Date |
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| CN113804990A true CN113804990A (en) | 2021-12-17 |
| CN113804990B CN113804990B (en) | 2024-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646436A (en) * | 2022-05-18 | 2022-06-21 | 启东市金猴除尘成套设备有限公司 | Low-voltage direct-current solenoid valve fault judgment and detection tool |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114646436A (en) * | 2022-05-18 | 2022-06-21 | 启东市金猴除尘成套设备有限公司 | Low-voltage direct-current solenoid valve fault judgment and detection tool |
| CN114646436B (en) * | 2022-05-18 | 2022-07-29 | 启东市金猴除尘成套设备有限公司 | Low-voltage direct-current solenoid valve fault judgment and detection tool |
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| CN113804990B (en) | 2024-04-05 |
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