CN220626110U - Online monitoring system for content of ferromagnetic metal particles in oil wear - Google Patents
Online monitoring system for content of ferromagnetic metal particles in oil wear Download PDFInfo
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- CN220626110U CN220626110U CN202321975250.8U CN202321975250U CN220626110U CN 220626110 U CN220626110 U CN 220626110U CN 202321975250 U CN202321975250 U CN 202321975250U CN 220626110 U CN220626110 U CN 220626110U
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- 239000002184 metal Substances 0.000 claims description 17
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- 230000008569 process Effects 0.000 description 2
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Abstract
The utility model provides an online monitoring system for the content of ferromagnetic metal particles in oil wear, which comprises the following components: the detection cavity is used for storing oil to be detected; the pipeline system is used for enabling oil to enter or exit the detection cavity; the magnetic element is used for enriching ferromagnetic particles in the oil in the detection cavity at the bottom of the detection cavity; and the detection unit is used for detecting the content of ferromagnetic particles enriched at the bottom of the detection cavity. The system can obtain the wear value data with high quantification, high precision and good repeatability, thereby pre-warning and judging the wear state of the equipment and judging the wear severity of the equipment according to the detected wear value data.
Description
Technical Field
The utility model mainly relates to the technical field related to oil wear monitoring, in particular to an on-line monitoring system for the content of oil wear ferromagnetic metal particles.
Background
In lubrication systems such as gear boxes, gearboxes, reducers, hydraulic systems and steam turbines in industries such as mines, coal mines, thermal power, traffic, wind power, chemical industry, cement, steel, military industry and the like, equipment wear faults can be timely early warned and judged through online monitoring of wear particles in oil.
In the prior art, the oil wear particle on-line monitoring technology mainly comprises two kinds. 1. The oil liquid pipeline passes electromagnetic coil, lets in the electromagnetic coil and has the excitation signal, when metal particles flow through electromagnetic coil in the oil, produces the induction signal in electromagnetic coil, judges the size of metal particles according to the strength of induction signal, judges the content of metal particles according to the pulse number of induction signal, and the output of this type of sensor is: particle content distribution related to metal particle size. The problems are that the correlation between the output signal and the actual abrasion condition of the equipment is poor, the signal stability is poor, the repeatability is poor, and the guiding significance maintenance suggestion can not be given to the user. The method is generally used for trend analysis, namely, when the content of metal particles is remarkably increased, an alarm signal can be given, and a user is reminded to perform offline wear analysis to judge the severity of the fault; if such sensors are put into use, the metal wear particles in the oil are already high, but there is no obvious trend of increasing, and such detection techniques cannot give an alarm. The oil pipe has the defect that the inner diameter size of the oil pipe is as small as possible, namely the electromagnetic coil is as close to metal particles as possible, in order to improve the dynamic detection precision; the smaller the tubing size, the greater the volatility of the test results, and the poorer the stability and repeatability. 2. On-line ferrograph, the electromagnet is used to enrich ferromagnetic metal particles in oil on the glass of oil pipeline, the camera is used to take pictures of enriched ferromagnetic metal particles, and the image recognition technology is used to analyze the form and content of ferromagnetic particles so as to judge the fault and abrasion severity of the equipment. The technology can realize qualitative analysis generally, is difficult to realize accurate quantification, and has false alarm or can not alarm on fault judgment.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model combines the prior art, and provides the oil wear ferromagnetic metal particle content online monitoring system from practical application, which can obtain wear value data with high quantification, high precision and good repeatability, thereby pre-warning and judging the wear state of equipment and judging the wear severity of the equipment according to the detected wear value data.
In order to achieve the above purpose, the technical scheme of the utility model is as follows:
an on-line monitoring system for the content of ferromagnetic metal particles in oil wear, comprising:
the detection cavity is used for storing oil to be detected;
the pipeline system is used for enabling oil to enter or exit the detection cavity;
the magnetic element is used for enriching ferromagnetic particles in the oil in the detection cavity at the bottom of the detection cavity;
and the detection unit is used for detecting the content of ferromagnetic particles enriched at the bottom of the detection cavity.
Further, the detection cavity is communicated with the first diversion hole and the second diversion hole;
the pipeline system comprises an oil pipe and an oil suction and drainage pipeline structure, the oil pipe is communicated with the first diversion hole, and the oil suction and drainage pipeline structure is communicated with the second diversion hole and used for controlling oil to enter the detection cavity or drain out of the detection cavity through the oil pipe.
Further, the first diversion hole and the second diversion hole are respectively provided with an oil level sensor.
Further, the liquid sucking and discharging pipeline structure comprises an air pipe, an air pump and a valve group, and the air pressure in the detection cavity is regulated through the valve group so as to realize liquid sucking and discharging.
Further, the oil level sensor, the valve group, the air pump and the detection unit are all connected with the controller through electric signals.
Further, the controller is used for obtaining ferromagnetic particle content values based on the detection data of the detection unit, comparing the ferromagnetic particle content values with data in a database and judging the equipment abrasion state.
Further, the detection unit comprises a force sensor, the magnetic element is arranged below the detection cavity and fixed on the force sensor, and the enriched ferromagnetic particles change the force sensor by acting force on the magnetic element to realize the detection of the ferromagnetic particle content.
Further, the detecting unit further comprises a sensor support, a blind hole with internal threads is formed in the top of the sensor support, a closed space is formed between the blind hole and a detecting cavity with external threads at the end part, a first diversion hole is formed in one side of the sensor support and is communicated with the detecting cavity, the force sensor is fixed in the sensor support, the magnetic element is located below the blind hole, and the magnetic element is fixed in the force sensor through the supporting plate.
Further, the detection unit comprises a magnetic sensor, the magnetic sensor is arranged at the bottom of the detection cavity, and the enriched ferromagnetic particles enable the magnetic signals of the magnetic sensor to change so as to realize the detection of the content of the ferromagnetic particles.
Further, the detection unit comprises a metal detection sensor, the metal detection sensor is sleeved outside the detection cavity, and the enriched ferromagnetic particles enable coil induction signals of the metal detection sensor to change so as to realize the detection of the ferromagnetic particle content.
The utility model has the beneficial effects that:
1. according to the utility model, oil can enter the detection cavity through the pipeline system, the magnetic element can enrich ferromagnetic particles in the oil to the bottom of the detection cavity, the content of the enriched ferromagnetic particles is detected through the detection unit, the volume of a single detection oil sample can be changed by changing the size of the detection cavity, the larger the volume of the single detection oil is, the more stable the result is, the better the repeatability is, the enrichment time of the ferromagnetic particles can be controlled, the enrichment times can be single or multiple times, and the content of the ferromagnetic particles in the oil can be fully reflected through the single numerical value and the multiple numerical values, so that the accuracy and the repeatability of the detection result are ensured.
2. In the utility model, a plurality of feasible detection modes are provided, particularly for the detection mode through the force sensor, the different acting forces are generated on the magnetic element due to the different ferromagnetic particle contents, and the enriched ferromagnetic particle contents are monitored through the change of the force sensor data, so that the wear value data with high quantification, high precision and good repeatability can be obtained, and the wear state of equipment and the wear severity of equipment can be early warned and judged according to the comparison of the detected wear value data and the data in the database.
3. According to the utility model, when oil enters the detection cavity once, the magnetic element can enrich the ferromagnetic particles in the oil, so that the content of the ferromagnetic particles in the oil is reduced, the secondary abrasion of equipment is reduced, and the service life of the equipment is prolonged.
4. According to the utility model, the oil in the oil tank can be controlled to automatically enter the detection cavity or be discharged out of the detection cavity through the pipeline system, and the automatic monitoring of equipment can be realized.
Drawings
FIG. 1 is a schematic diagram of the principles of the present utility model;
FIG. 2 is a schematic diagram of a liquid sucking and discharging pipeline structure;
FIG. 3 is a schematic diagram of the detection structure of embodiment 1;
FIG. 4 is a schematic view of the sensor holder structure of embodiment 1;
FIG. 5 is a schematic diagram of the detection structure of embodiment 2;
FIG. 6 is a schematic diagram of the detection structure of embodiment 3;
fig. 7 is a monitoring flow chart.
The reference numbers shown in the drawings: 1. a detection chamber; 2. a detection unit; 3. an oil pipe; 4. an oil level sensor; 5. a valve group; 6. an industrial personal computer; 7. an air pump; 8. a controller; 9. a case; 10. a communication interface; 11. an oil tank; 12. an air pipe; 13. a pressure release valve; 14. a liquid suction valve; 15. a liquid discharge valve; 16. a magnetic element; 17. a force sensor; 18. a sensor holder; 19. a first deflector aperture; 20. a second deflector aperture; 21. a blind hole; 22. a metal detection sensor; 23. a magnetic sensor.
Detailed Description
The utility model will be further described with reference to the accompanying drawings and specific embodiments. It is to be understood that these examples are illustrative of the present utility model and are not intended to limit the scope of the present utility model. Further, it will be understood that various changes or modifications may be made by those skilled in the art after reading the teachings of the utility model, and such equivalents are intended to fall within the scope of the utility model as defined herein.
Example 1:
the embodiment provides an oil online wear monitoring system, which is mainly used for obtaining wear value data with high quantification, high precision and good repeatability, and early warning and judging the wear state of equipment and judging the wear severity of the equipment according to the detected wear value data.
Referring to fig. 1 to 4, the oil online wear monitoring system of the present embodiment mainly includes a detection chamber 1, a pipeline system, a magnetic element 16, a detection unit 2, and the like. The detection cavity 1 is used for storing oil to be detected, specifically, the oil to be detected can enter the detection cavity 1 from an oil tank 11 or a pipeline or other oil storage components through a pipeline system or is discharged back to the oil tank 11 from the detection cavity 1, and the oil tank 11 can be a gear box with oil, a lubrication system or a hydraulic system and other devices.
The magnetic element 16 is arranged below the detection cavity 1, and mainly enriches ferromagnetic particles in oil in the detection cavity 1 at the bottom of the detection cavity 1 through magnetic force. The magnetic element 16 may use a permanent magnet or an electromagnet, an electromagnetic force, or the like. After oil enters the detection cavity 1 from the oil tank 11, ferromagnetic particles in the oil are enriched towards the bottom of the detection cavity 1 under the action of the magnetic element 16, and after a period of time, the content of the ferromagnetic particles in the oil can be judged by detecting the enriched ferromagnetic particles, so that wear value data are obtained to early warn and judge the wear state of equipment and judge the wear severity of the equipment.
In this embodiment, because the detection cavity 1 is communicated with the oil tank 11 through the pipeline system, therefore, the frequency of entering the detection cavity 1 by oil can be controlled in the detection process, the judgment of one-time enrichment or multiple-time enrichment accumulation results is realized, meanwhile, the ferromagnetic particles entering the detection cavity 1 at each time can be enriched through the magnetic element 16, the detection precision can be improved by the enriched ferromagnetic particles, meanwhile, most of the enriched ferromagnetic particles are detained at the bottom of the detection cavity 1 after each detection, the ferromagnetic particles in the oil can be reduced, the equipment abrasion is reduced, and the service life of the equipment is prolonged.
In this embodiment, the pipe system is mainly used to make the oil enter or exit the detection chamber 1, and may be implemented by a hydraulic pump or an air pump. In one specific implementation manner provided in this embodiment, the pipeline system mainly includes the oil pipe 3 and the liquid suction and discharge pipeline structure. Specifically, the bottom of the detection cavity 1 is communicated with a first diversion hole 19, the top of the detection cavity 1 is communicated with a second diversion hole 20, and the oil pipe 3 is communicated with the first diversion hole 19. The liquid sucking and discharging pipeline structure (refer to fig. 2) comprises an air pipe 12, a pressure sensor, a temperature sensor, an air pump 7 and a valve group 5, wherein the temperature sensor is used for measuring the temperature of the detection cavity 1, the pressure sensor is used for measuring the pressure in the air pipe 12, the valve group 5 comprises a pressure relief valve 13, a liquid suction valve 14 and a liquid discharging valve 15, the pressure relief valve 13 is arranged on the air pipe 12, two interfaces of the pressure relief valve 13 are respectively connected with the air pipe 12 and the air pipe 12, three interfaces of the liquid suction valve 14 are respectively connected with the air pipe 12 and the inlet of the air pump 7, and three interfaces of the liquid discharging valve 15 are respectively connected with the air pipe 12 and the outlet of the air pump 7. In the imbibition process, the imbibition valve 14 acts to enable the air pipe 12 and the inlet of the air pump 7 to be communicated, the outlet of the air pump 7 is communicated with the atmosphere through the drain valve 15, at this moment, under the action of the air pump 7, negative pressure is formed in the detection cavity 1, oil in the oil tank 11 enters into the detection cavity 1 through the oil pipe 3 and the first diversion hole 19, the oil level sensor 4 is arranged at the second diversion hole 20 of the detection cavity 1, when the detection cavity 1 is full of oil, the pressure release valve 13 acts, the air pump 7 stops acting, the pressure release valve 13 acts to enable the air pipe 12 to be communicated with the atmosphere, the pressure in the air pipe 12 is released, a certain time is delayed, the pressure release valve 13 is closed, and the pressure can be detected after a certain time is delayed until ferromagnetic particles are settled and stabilized. After the detection is completed, the liquid discharge is needed, at this time, the liquid discharge valve 15 is electrified, the liquid suction valve 14 is communicated with the atmosphere, the liquid discharge valve 15 is communicated with the air pipe 12, the pressure of the air pump 7 enters the detection cavity 1 through the liquid discharge valve 15 and the pressure relief valve 13, the oil in the detection cavity 1 is discharged, and the oil returns to the oil tank 11 through the oil pipe 3. An oil level sensor 4 is also provided at the first pilot hole 19, and the air pump 7 stops after the oil discharge is detected.
In order to realize automatic liquid sucking and discharging operation and detection, the monitoring system is provided with a controller 8, and an oil level sensor 4, an air pump 7, a valve group 5, a detection unit 2, a pressure sensor, a temperature sensor and the like are controlled by the controller 8. The controller 8 is connected with the industrial personal computer 6, and the industrial personal computer 6 can communicate with the outside through the communication interface 10.
As a preferred version of this embodiment, the entire monitoring system is integrated into the housing 9.
The embodiment also provides a specific form of the detection unit, and the content of the ferromagnetic particles is fed back through detection of force.
Reference is made to fig. 3 and 4. The detection unit 3 mainly comprises a force sensor 17 and a sensor bracket 18, wherein a blind hole 21 with internal threads is formed in the top of the sensor bracket 18, the blind hole 21 and a detection cavity 1 with external threads at the end part form a closed space, namely the detection cavity 1 is arranged above the sensor bracket 18 through threads, a first diversion hole 19 is formed in one side of the sensor bracket 18 and is communicated with the detection cavity 1 for oiling the detection cavity 1, the force sensor 17 is fixed in the sensor bracket 18 through a base plate, the magnetic element 16 is positioned below the blind hole 21 and is fixed on the force sensor 17 through a supporting plate.
In the above-described detection unit structure provided in the present embodiment, since the magnetic element 16 is fixed to the force sensor 17, the force sensor 17 can detect the magnitude of the acting force applied by the magnetic element 16. When the ferromagnetic particles in the detection cavity 1 are enriched to the bottom, the ferromagnetic particles have an acting force on the magnetic element 16, and the acting force can cause the numerical value of the magnetic element 16 acting on the force sensor 17 to change, so that the content of the ferromagnetic particles can be judged by the data detected by the force sensor 17 and the controller 8.
Specifically, when the detection procedure is started, the air pump 7 is started, the liquid discharge valve 15 acts, the pressure enters the detection cavity 1, and the oil liquid is discharged out of the detection cavity 1; when the detection chamber 1 is emptied, the oil level sensor 4 detects that the detection chamber 1 is emptied, the air pump 7 and the liquid discharge valve 15 are stopped; after time delay, the output signal of the force sensor 17 is F0; storing F0; then starting the liquid suction valve 14 to act, starting the air pump 7, starting the liquid suction valve 14 to act, enabling the oil containing ferromagnetic metal particles to enter the detection cavity 1, stopping the air pump 7 and the liquid suction valve 14 after the liquid level sensor 4 detects that the oil is full of the detection cavity 1 when the detection cavity 1 is full of the oil, stopping liquid suction, and simultaneously, stopping the action of the pressure release valve 13; after time delay, under the action of the magnetic element 16, ferromagnetic particles in oil can be enriched at the bottom of the detection cavity 1, and as the ferromagnetic particles at the bottom of the detection cavity 1 are increased, the magnetic attraction between the total ferromagnetic particles and the magnetic element 16 can be increased, so that the gravity of the magnetic element 16 acting on the force sensor 17 is reduced, and the output signal of the force sensor 17 is changed into F1. F0-f1=f2, f2=f0-f1, F2 being related to the content of ferromagnetic metal particles in the oil, the higher the content of F2, the greater the content of F2, the lower the content of F2; f2 may reflect the content of ferromagnetic particles in the oil. And repeating the steps when carrying out enrichment accumulation detection for a plurality of times.
The force detection mode has the advantages of high stability, good repeatability and high precision, and is not influenced by external conditions.
Example 2:
the embodiment provides another specific form of the detection unit, and the detection of the ferromagnetic particles is performed by means of metal detection.
Referring to fig. 5, the structural form of the present embodiment is to sleeve an annular metal detection sensor 22 outside the detection chamber 1 to realize the detection of ferromagnetic particles.
In one specific detection method provided in this embodiment, after the detection cavity 1 is filled with oil, ferromagnetic particles in the oil are enriched at the bottom under the action of the magnetic element 16 (permanent magnet or electromagnetic), the annular metal detection sensor 22 is sleeved outside the oil detection cavity 1, a high-frequency signal is passed through the metal detection sensor 22, when the metal detection coil moves up and down, the coil of the metal detection sensor 22 generates an induction signal due to the existence of ferromagnetic particles enriched at the bottom of the detection cavity 1, the strength of the induction signal is related to the content of ferromagnetic particles enriched at the bottom of the detection cavity 1, the variation of each cyclic induction signal has a corresponding relation with the content of ferromagnetic particles in the oil, and calibration is performed on the relation curve of the content of the induction signal and the ferromagnetic particles according to a test, so that an ideal ferromagnetic particle content curve is obtained for field detection.
In another specific detection mode provided in this embodiment, after the detection cavity 1 is filled with oil, ferromagnetic particles in the oil are enriched at the bottom under the action of the magnetic element 16 (permanent magnet or electromagnetic), the annular metal detection sensor 22 is sleeved outside the oil detection cavity 1, two groups of coils are passed through the metal detection sensor 22, one group of coils generates a high-frequency variable magnetic field, one group of coils receives induction signals, the receiving coils of the metal detection sensor 22 generate induction signals due to the existence of ferromagnetic particles enriched at the bottom of the detection cavity 1, the intensity of the induction signals is related to the content of ferromagnetic particles enriched at the bottom of the detection cavity, the variation of each cyclic induction signal has a corresponding relation with the content of ferromagnetic particles in the oil, and the induction signals and the ferromagnetic particle content curve are calibrated according to a test to obtain an ideal ferromagnetic particle content curve for on-site detection.
Example 3:
the present embodiment provides a further specific form of detection unit for detecting ferromagnetic particles by means of a magnetic sensor.
Referring to fig. 6, a magnetic sensor 23 is provided at the bottom of the detection chamber 1. After the oil is filled in the detection cavity 1, ferromagnetic particles in the oil are enriched at the bottom under the action of the magnetic element 16 (permanent magnet or electromagnetism), meanwhile, the magnetic element 16 magnetizes the ferromagnetic particles, the magnetic sensor 23 is arranged at the bottom of the detection cavity 1, and along with the continuous enrichment of the ferromagnetic particles, the magnetic signal detected by the magnetic sensor 23 is also increased. The increment of each checking circulation magnetic sensor signal has a corresponding relation with the content of ferromagnetic particles in oil, and the magnetic signal and ferromagnetic particle content curve are calibrated and calibrated according to the test, so that an ideal ferromagnetic particle content curve is obtained for on-site detection.
Example 4:
the embodiment provides a monitoring method of an oil online wear monitoring system, which is mainly used for obtaining wear value data with high quantification, high precision and good repeatability, and early warning and judging the wear state of equipment and judging the wear severity of the equipment according to the detected wear value data. In this embodiment, the method will be described in detail with reference to the force detection method in embodiment 1, and it should be understood that the detection methods in embodiments 2 and 3 are equally applicable, and only differ in the sensor measurement data and the calculation method.
Reference is made to fig. 7. The method mainly comprises the following steps.
S1, giving a starting value, and starting the monitoring system when the starting condition is met.
Wherein, the initial value is mainly the duration of each time delay, the temperature of the oil pipe, the temperature which can start monitoring, the normal gas circuit pressure value, the attention value of the abrasion loss, the warning value of the abrasion loss, the serious value of the abrasion loss and the like; the starting condition is mainly that the state of the abrasion sensor is normal, the equipment oil temperature is higher than the temperature which can be monitored by starting, an external starting signal, the gas circuit pressure is close to zero, and the like.
S2, evacuating the oil.
The oil in the detection cavity 1 is emptied by starting the air pump 7 and the emptying valve 15, and the oil level sensor 4 detects that the oil is emptied and then delays for a certain time.
S3, storing the current value F0 of the force sensor 17.
S4, performing liquid suction action to enable the oil liquid to enter the detection cavity.
The air pump 7 and the liquid suction valve 14 are started to suck the oil in the oil tank 11 into the detection cavity 1, and the oil level sensor 4 is delayed for a certain time after detecting the oil full.
S5, storing the current value F1 of the force sensor 17.
S6, calculating F2=F0-F1 to obtain the wear value corresponding to F2.
S7, comparing the F2 with data in a database, and giving a warning value.
S8, repeating the actions can finish the detection of the enrichment result for a plurality of times.
The method can obtain quantitative wear value data with high precision and good repeatability, the wear state of the equipment and the wear severity of the equipment are early-warned and judged according to the detected wear value data, the repeatability is +/-10 (when the wear value is lower than 200) or +/-5% (when the wear value is higher than 200), and the equipment wear fault can be early-warned and judged 1-3 months in advance.
Claims (10)
1. An online monitoring system for the content of ferromagnetic metal particles in oil wear, which is characterized by comprising:
the detection cavity is used for storing oil to be detected;
the pipeline system is used for enabling oil to enter or exit the detection cavity;
the magnetic element is used for enriching ferromagnetic particles in the oil in the detection cavity at the bottom of the detection cavity;
and the detection unit is used for detecting the content of ferromagnetic particles enriched at the bottom of the detection cavity.
2. The online monitoring system for the content of the oil wear ferromagnetic metal particles according to claim 1, wherein the detection cavity is communicated with the first diversion hole and the second diversion hole;
the pipeline system comprises an oil pipe and an oil suction and drainage pipeline structure, the oil pipe is communicated with the first diversion hole, and the oil suction and drainage pipeline structure is communicated with the second diversion hole and used for controlling oil to enter the detection cavity or drain out of the detection cavity through the oil pipe.
3. The online monitoring system for the content of the oil wear ferromagnetic metal particles according to claim 2, wherein oil level sensors are arranged at the first diversion hole and the second diversion hole.
4. The on-line monitoring system for the content of the ferromagnetic metal particles in the oil wear of claim 3, wherein the liquid sucking and discharging pipeline structure comprises an air pipe, an air pump and a valve group, and the air pressure in the detection cavity is adjusted through the valve group so as to realize liquid sucking and discharging.
5. The on-line monitoring system for the content of the oil wear ferromagnetic metal particles according to claim 4, further comprising a controller, wherein the oil level sensor, the valve group, the air pump and the detection unit are all in electrical signal connection with the controller.
6. The system for on-line monitoring of the content of the ferromagnetic metal particles in the oil wear according to claim 5, wherein the controller is used for obtaining the value of the content of the ferromagnetic particles based on the detection data of the detection unit and comparing the value with the data in the database to judge the wear state of the equipment.
7. The system for on-line monitoring of the content of oil wear ferromagnetic metal particles according to any one of claims 1 to 6, wherein the detection unit comprises a force sensor, the magnetic element is arranged below the detection cavity and is fixed on the force sensor, and the enriched ferromagnetic particles act on the magnetic element to change the force sensor so as to realize the detection of the content of the ferromagnetic particles.
8. The on-line monitoring system for the content of the ferromagnetic metal particles in the oil wear of claim 7, wherein the detection unit further comprises a sensor support, a blind hole with internal threads is formed in the top of the sensor support, a closed space is formed between the blind hole and a detection cavity with external threads at the end part, a first diversion hole is formed in one side of the sensor support and is communicated with the detection cavity, the force sensor is fixed in the sensor support, the magnetic element is located below the blind hole, and the magnetic element is fixed on the force sensor through a supporting plate.
9. The system for on-line monitoring of the content of the ferromagnetic metal particles in oil wear according to any one of claims 1 to 6, wherein the detection unit comprises a magnetic sensor, the magnetic sensor is installed at the bottom of the detection cavity, and the enriched ferromagnetic particles enable the magnetic signal of the magnetic sensor to change so as to realize the detection of the content of the ferromagnetic particles.
10. The online monitoring system for the content of the ferromagnetic metal particles in the oil wear according to any one of claims 1 to 6, wherein the detection unit comprises a metal detection sensor, the metal detection sensor is sleeved outside the detection cavity, and the enriched ferromagnetic particles enable the coil induction signals of the metal detection sensor to change so as to realize the detection of the content of the ferromagnetic particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202321975250.8U CN220626110U (en) | 2023-07-26 | 2023-07-26 | Online monitoring system for content of ferromagnetic metal particles in oil wear |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202321975250.8U CN220626110U (en) | 2023-07-26 | 2023-07-26 | Online monitoring system for content of ferromagnetic metal particles in oil wear |
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| CN220626110U true CN220626110U (en) | 2024-03-19 |
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| CN202321975250.8U Active CN220626110U (en) | 2023-07-26 | 2023-07-26 | Online monitoring system for content of ferromagnetic metal particles in oil wear |
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