CN2336362Y - Wear state on-line monitor based on oil and power test - Google Patents
Wear state on-line monitor based on oil and power test Download PDFInfo
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- CN2336362Y CN2336362Y CN 97242112 CN97242112U CN2336362Y CN 2336362 Y CN2336362 Y CN 2336362Y CN 97242112 CN97242112 CN 97242112 CN 97242112 U CN97242112 U CN 97242112U CN 2336362 Y CN2336362 Y CN 2336362Y
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Abstract
The utility model relates to a wear state on-line monitor based on oil and power test, which is composed of a ferromagnetic granule detector, a non-ferromagnetic granule and oil product quality detector, an engine power (revolution speed) detector, an oil pump, a multi-sampling oil channel switching device, an 8098 SCM, an engine power (revolution speed) detector of the 8098 SCM, a sensor circuit of the 8098 SCM, a phase discrimination circuit, a counting circuit, etc. The utility model is installed in the lubricating oil system of the monitored equipment, and automatically pumps the lubricating oil to detect the ferromagnetic granule, the non-ferromagnetic granule and the oil product quality. Simultaneously, the utility model detects the instantaneous revolution speed and the circulation revolution speed of an output shaft of a diesel engine and the shaft torque, judges the wear state reflected by the state of the worn granule, and judges the non-uniformity of the blasting-discharge pressure of each cylinder of the diesel engine.
Description
The utility model belongs to technical field of measurement and test, further relates to a kind of surveying instrument that is used for purposes such as the research of rubbing wear mechanism, mechanical wear status monitoring and diagnosis, lubricating oil quality supervision survey.
Up to now, the state of wear on-line monitoring how with online abrasive particle detecting instruments such as online ferrograph (Liu Yan and Xie You-Bai, Research on an on-line ferrograph, Wear, 153 (1992,323-330).This class abrasive particle detecting instrument is many based on detection ferromagnetism abrasive particle, or ferromagnetism abrasive particle and other material grains mixing detection.To detect the purpose that reaches on-line monitoring mechanical wear state by abrasive particle in the lubricating oil, the shortcoming of above-mentioned instrument is:
1. ferromagnetism abrasive particle and nonferromagnetic abrasive particle can't be distinguished;
2. can't detect the total quality situation of lubricating oil simultaneously;
3. can't the abrasive particle situation of change is corresponding with machine run situation (power).Thereby, be not suitable for the wear condition monitoring that diesel engine etc. has multiple metal material friction pair, lubricating oil work under bad environment, perishable plant equipment.Also be unfavorable for the variation of machine output (or rate of wear) size as the objective standard of judging that state of wear is whether unusual.
The purpose of this utility model is to provide a kind of wear condition monitoring instrument.It is installed in the oil circulating system of monitored plant equipment, detect ferromagnetism abrasive particle and nonferromagnetic abrasive particle in the lubricating oil, lubricating oil total quality situation, machine power simultaneously, and by many machines of many sampling channel monitorings, when being used for the diesel engine monitoring, can pass through the circulation rotating speed and the transient speed of power detection device on-line monitoring diesel engine, thereby judge the homogeneity of each cylinder working.
The utility model comprises ferromagnetic particle detector, non-ferromagnetic debris and oil quality detector, machine power (rotating speed) detector, oil pump, sample oil duct switching device shifter, electronic circuit etc. more.By oil pump, oil stream from the suction of device oil-in, is discharged back monitored equipment from going out oil product after surveying.From oil-in, ferromagnetic particle detector and non-ferromagnetic debris and oil quality detector use oil pipe connected in series successively, many sampling channels switch by control electromagnetic valve break-make oil circuit, device detects tach signal and automatically equipment is carried out the sampling monitoring operation for sign, and judge state automatically, total system is controlled by 8098 extend system scps.
Fig. 1 is an one-piece construction synoptic diagram of the present utility model.
Fig. 2 is the utility model operation circuit unit theory diagram.
Fig. 3 is the utility model ferromagnetic particle panel detector structure synoptic diagram.
Fig. 4 is the utility model ferromagnetic particle detector circuit principle schematic.
Fig. 5 is the utility model non-ferromagnetic debris and oil quality panel detector structure synoptic diagram.
Fig. 6 is the utility model non-ferromagnetic debris and oil quality detector circuit principle schematic.
Fig. 7 is the utility model machine power (rotating speed) detector sensor structural representation
Fig. 8 is the utility model machine power (rotating speed) detector sensor circuit theory synoptic diagram.
Fig. 9 is the utility model machine power (rotating speed) detector phase discriminator principle schematic
Figure 10 is the utility model machine power (rotating speed) detector two paths of signals phase place synoptic diagram
Figure 11 is the utility model machine power (rotating speed) explorer count circuit theory synoptic diagram.
Figure 12 is the utility model oil duct switching principle synoptic diagram of sampling more.
Below in conjunction with accompanying drawing structural principle of the present utility model and principle of work are done detailed explanation.
With reference to Fig. 1, the utility model is the fixation measuring instrument, has comprised the oil duct of sampling more than switching device shifter 1, and its road sampling channel wherein links to each other with the engine oil road with flowline 35 by oil inlet pipe 34.Total oil inlet pipe 20 of many sampling oil duct switching device shifters 1 links to each other with the inlet of solenoid valve 2, the outlet of solenoid valve 2 links to each other by copper pipe with the inlet of ferromagnetic particle detector 3, the outlet of ferromagnetic particle detector 3 links to each other by copper pipe with the outlet of non-ferromagnetic debris and oil quality detector 5, the outlet of non-ferromagnetic debris and oil quality detector 5 links to each other by copper pipe with the inlet of oil pump 6, and the outlet of oil pump 6 links to each other with many samplings oil duct switching device shifter 1 by total flowline 21.Ferromagnetic particle detector 3 places the top of electromagnet 4, many sampling oil duct switching device shifters 1, solenoid valve 2, ferromagnetic particle detector 3, the circuit in non-ferromagnetic debris and oil quality detector 5, electromagnet 4, oil pump 6, machine power (rotating speed) detector 24 links to each other with operation circuit unit 31 by the input and output circuit.
With reference to Fig. 1, Fig. 2, operation circuit of the present utility model unit 31 has comprised that 8098 single-chip microcomputers, 22,8098 single-chip microcomputers 22 link to each other with E-PROM, RAM, the 8279 keyboard display controller circuit 23 of periphery with data bus dbus by address bus ABUS.8098 single-chip microcomputers 22 are by the ACH of A/D mouth
4End links to each other with ferromagnetic particle detector circuit 25.8098 single-chip microcomputers 22 link to each other with 8255I/O mouth 26 with data bus by address bus.8255I/O mouth 26 links to each other with machine power (rotating speed) explorer count circuit 27 by RA0～PA7 and PB0～PB7, and (rotating speed, explorer count circuit 27 passes through μ to machine power
3End links to each other with machine power (rotating speed) detector phase discriminator 28, and machine power (rotating speed) detector phase discriminator 28 passes through μ
1And μ
2End links to each other with machine power (rotating speed) detector sensor circuit 29.8098 single-chip microcomputers 22 pass through HSI
0, HSI
1End links to each other with ferromagnetic particle and oil quality detector circuit 30.The PC of ferromagnetic particle detector circuit 25
0～PC
2The PC of end and machine power (rotating speed) detector sensor circuit 29
6End links to each other with the respective end of 8255I/O mouth 26 respectively.The μ of machine power (rotating speed) detector sensor circuit 29
1The HSI of end and 8098 single-chip microcomputers 22
2End links to each other.
With reference to Fig. 1, Fig. 2 Figure 12, by the break-make of 8098 Single-chip Controlling solenoid valves 19, and then the connecting with the total oil inlet pipe 20 of instrument and flowline 21 respectively into and out of oil pipe of each external channel.Make and a certain the outside is switched on into and out of oil pipe.Sampling is equipped with gear-type oil pump 6 in the oil circuit, and during oil pump 6 runnings, the oil solenoid valve 2 of flowing through enters ferromagnetic particle detector 3 then, enters non-ferromagnetic debris and oil quality detector 5 again, and the back is discharged by oil pump 6.Ferromagnetic particle detector 3 and non-ferromagnetic debris and oil quality detector 5 are connected in series in oil circuit.Solenoid valve 2 is a three-way solenoid valve.When solenoid valve 2 cuts out, and during oil pump 6 runnings, air enters oil piping system, and Residual oil is discharged.
With reference to Fig. 1, Fig. 3, Fig. 4, ferromagnetic particle detector 3 relies on electromagnet 4 to produce magnetic field force.Electromagnet 4 comprises a magnetic pole 10, and magnetic pole 10 belows dispose a magnetic core 12, are wound with coil 11 on the magnetic core 12.Magnetic pole 10 tops are the oil cavity 8 of square-section, and there is light emitting diode 7 oil cavity 8 tops, and there is silicon photocell 9 below.Oil cavity 8 upper and lower surfaces are transparent material, and the light of light emitting diode 7 can see through the surface that oil cavity 8 exposes to silicon photocell 9.When electromagnet 4 was opened, the ferromagnetic particle of magnetic field force induced effect was adsorbed on the lower surface of oil cavity 8, and output current reduces to make silicon photocell 9 sensitive surfaces reduce consequently.Silicon photocell 9 inserts by LM358, R
1, R
2In the current conversion potential circuit of forming, make the current signal of silicon photocell 9 convert voltage signal to and export 4051 to.To switch the ACH of the A/D mouth that exports 8098 single-chip microcomputers to more than 1 tunnel signal respectively by 4051
4End.
With reference to Fig. 1, Fig. 5, Fig. 6, non-ferromagnetic debris and oil quality detector 5 post planar capacitor 13 on plane on the cavity 14, and the lower plane of cavity 14 posts lower plane capacitor 15.When being full of oil in the cavity 14, in the oil because materials such as containing metal particle, water produce change in dielectric constant, and the capacitance of last planar capacitor 13 and lower plane capacitor 15 then changes so that their accesses by 4011, C
1, R
3The output recurrence interval of the oscillatory circuit of forming changes.This pulse signal is output to the HSI of 8098 single-chip microcomputers
0(HSI
1) port.Because ferromagnetic particle detector 3 is worked simultaneously when measuring, then ferromagnetic particle is attracted in the ferromagnetic particle detector 3, the non-ferromagnetic debris and the oil quality detector 5 that have only non-ferromagnetic debris to enter into to be in the oil circuit downstream.
With reference to Fig. 1, Fig. 2, Fig. 7, Fig. 8, Fig. 9, the utility model adopts phase difference method to measure the moment of torsion of machine output shaft.Light emitting diode 16 and phototriode 18 are installed in the both sides of housing 34 grooves in machine power (rotating speed) detector sensor 24, and housing 34 and groove can hold fluted disc 17 to be passed through.Fluted disc 17 is fixed on the machine output shaft.Be processed with equidistant rectangular teeth on the fluted disc 17, light emitting diode 16 and phototriode 18 are installed in the tooth both sides of fluted disc 17, form photoelectric sensor.When fluted disc 17 rotated with axle, the light pulse number that phototriode receives was the rotating speed of axle and the product of the number of teeth of fluted disc 17.This light pulse signal is converted to Transistor-Transistor Logic level by phototriode 18, LM339 and peripheral circuit, exports 4053 to.4053 can realize two monitoring target input signals are switched monitoring, select signal to be imported by the 8255PC.6 mouth.On same axis, in the certain intervals two cover photoelectric sensors are installed vertically, just can in the axle rotary course, be obtained the pulse signal of two-way opto-electronic conversion.By phase discriminator shown in Figure 9, can obtain the phase signal of two pulse signals.During the axle forward rotation, signal mu
1Be ahead of signal mu
2During backward rotation, μ
2Be ahead of signal mu
1Adopt 74LS74 to detect forward or reverse.When just changeing, output Q is " 1 ", and during counter-rotating, output Q is " 0 ", by 74LS32 phase difference output signal mu
3The signal phase situation of Figure 10 when just changeing, adopt following logical algorithm can obtain phase differential μ this moment
3:
μ
3=μ
1· μ
2
Can utilize direction signal Q to obtain phase signal μ under two kinds of situations of forward or reverse thus
3:
μ
3=Q·μ
1· μ
2+ Q· μ
1·μ
2
With phase differential μ
3After being converted to torsion angle, in conjunction with by with the HSI of 8098 single-chip microcomputers 22
2The μ that links to each other
1The tach signal that signal obtains in 8098 single-chip microcomputers 22 can this axle and the corresponding output power of moment of torsion.Pass through μ
1, also can obtain the transient speed and the circulation rotating speed of diesel engine output shaft, and then judge the inhomogeneous state of the inhomogeneous transient speed that causes of the quick-fried row pressure power of each cylinder.
Phase signal μ
3The high level section be the section of differing, adopt the 10MHZ crystal oscillator frequency to count to differing pulse, counting circuit is seen Figure 11.Count value is read in 8098 single-chip microcomputers 22 through 8255 PA mouths, PB mouth.8255PC.1 mouthful output counter reset signal when this signal is " 1 ", is removed the output of 74LS393.
The utility model can realize that the lubricating oil system of multiple devices is carried out the heavy wool road switches monitoring.In its heavy wool road switching device shifter 1, on the total oil inlet pipe of instrument 20 and total fuel-displaced 21 and be connected with some minutes oil inlet pipes and divide flowline.Every road branch is equipped with two three-way electromagnetic valves on oil pipe.Break-make oil 8098 single-chip microcomputers of solenoid valve are controlled through the relay of 8255 parallel port control.
The utility model is the instrument of microprocessor control.Work by the software control instrument.After instrument is opened, at first wait for keyboard input initial parameter.As still on-keyboard operation after five minutes, instrument enters monitoring facilities automatically, utilizes the initial parameter of solidifying to monitor.In monitoring facilities, at first judge the HSI of 8098 single-chip microcomputers 22
2The tach signal μ of end
1, as no μ
1Signal shows that then monitored equipment is in halted state, and then instrument comes back to waiting status.If any μ
1Signal, instrument promptly carry out ferromagnetism abrasive particle, the monitoring of non-iron abrasive particle and oily variation, rotating speed, shaft power in order.Automatically carrying out threshold values judges.
The utility model is applied to the online auto monitoring and the failure prediction of the state of wear of rotating machinery and reciprocating machine.It can carry out comprehensive online detection to abrasive particle situation, oily situation in the fluid.And can carry out synchronous detection to transient speed, circulation rotating speed, the shaft power of diesel engine, judge the inhomogeneous state of the inhomogeneous transient speed that causes of the quick-fried row pressure power of each cylinder.Thereby the duty that helps the multifactorial evaluation diesel engine.
Claims (5)
1. state of wear on-line monitoring instrument based on fluid and power detection, it comprises the ferromagnetic particle detector, non-ferromagnetic debris and oil quality detector, machine power (rotating speed) detector, oil pump, many sampling oil duct switching device shifters, 8098 single-chip microcomputers and machine power thereof (rotating speed) detector sensor circuit, phase discriminator, electronic circuits such as counting circuit, it is characterized in that: one road sampling channel links to each other with the engine oil road with flowline 35 by oil inlet pipe 34, total oil inlet pipe 20 of many sampling oil duct switching device shifters 1 links to each other with the inlet of solenoid valve 2, the outlet of solenoid valve 2 links to each other by copper pipe with the inlet of ferromagnetic particle detector 3, the outlet of ferromagnetic particle detector 3 links to each other by copper pipe with the outlet of non-ferromagnetic debris and oil quality detector 5, the outlet of non-ferromagnetic debris and oil quality detector 5 links to each other by copper pipe with the inlet of oil pump 6, the outlet of oil pump 6 links to each other with many samplings oil duct switching device shifter 1 by total flowline 21, ferromagnetic particle detector 3 places the top of electromagnet 4, many sampling oil duct switching device shifters 1, solenoid valve 2, ferromagnetic particle detector 3, non-ferromagnetic debris and oil quality detector 5, electromagnet 4, oil pump 6, circuit in machine power (rotating speed) detector 24 links to each other with operation circuit unit 31 by the input and output circuit.
2. the state of wear on-line monitoring instrument based on fluid and power detection as claimed in claim 1, it is characterized in that: the magnet 4 of ferromagnetic particle detection device 3 is made up of magnetic pole 10, coil 11 and magnetic core 12, magnetic pole 10 tops are the oil cavity 8 of square-section, there is light-emitting diodes 7 oil cavity 8 tops, there is silicon photocell 9 below, and oil cavity 8 upper and lower surfaces are transparent material.
3. the state of wear on-line monitoring instrument based on fluid and power detection as claimed in claim 1, it is characterized in that: planar capacitor 13 is posted on the last plane of the cavity 14 of non-ferromagnetic debris and oil quality detector 5, and the lower plane of cavity 14 posts lower plane capacitor 15.
4. the state of wear on-line monitoring instrument based on fluid and power detection as claimed in claim 1, it is characterized in that: on same axis, in the certain intervals two cover photoelectric sensors are installed vertically, every cover photoelectric sensor has the fluted disc 17 that is processed into equidistant shape tooth to be fixed on the axle, light emitting diode 16 and phototriode 18 are installed in the tooth both sides of fluted disc 17, the pulse letter that phototriode 18 will be directly proportional with the product of the rotating speed and the number of teeth exports 4053 to through LM339 and peripheral circuit, again via 74LS74, behind the phase discriminator that 74LS32 etc. form, by 74LS32 phase difference output signal mu
3, the counting circuit of forming via 74LS393 etc. is to μ again
3Counting, by 8255 and PA mouth and PB mouth input to 8098 single-chip microcomputers, tach signal μ
1Input to the HSI of 8098 single-chip microcomputers
2Mouthful, tach signal μ
1Trigger the sampling monitoring operation of control system.
5. the state of wear on-line monitoring instrument based on fluid and power detection as claimed in claim 1, it is characterized in that: in the heavy wool road switching device shifter, on the total oil inlet pipe of instrument 20 and total flowline 21 and be connected with some minutes oil inlet pipes and divide flowline, every road branch is equipped with two three-way electromagnetic valves on oil pipe, the break-make of solenoid valve is by the relay control of 8098 single-chip microcomputers through the control of 8255 parallel port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242112 CN2336362Y (en) | 1997-11-18 | 1997-11-18 | Wear state on-line monitor based on oil and power test |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97242112 CN2336362Y (en) | 1997-11-18 | 1997-11-18 | Wear state on-line monitor based on oil and power test |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2336362Y true CN2336362Y (en) | 1999-09-01 |
Family
ID=33951434
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97242112 Expired - Fee Related CN2336362Y (en) | 1997-11-18 | 1997-11-18 | Wear state on-line monitor based on oil and power test |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2336362Y (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832460A (en) * | 2010-05-21 | 2010-09-15 | 朱子新 | Engine oil filter element abrasive dust detector |
| CN102226751A (en) * | 2011-04-02 | 2011-10-26 | 合肥工业大学 | Friction tester for dense granules |
| CN102734183A (en) * | 2011-03-29 | 2012-10-17 | Abb公司 | Method of detecting wear in a pump driven with a frequency converter |
| CN103995098A (en) * | 2014-05-13 | 2014-08-20 | 中联重科股份有限公司 | Engineering machine, and detection control apparatus, detection system and detection method for oil contamination level of engineering machine |
| CN105891280A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Electrification, centrifugation, absorption and adjacent capacitor abrasion fine particle on-line monitoring equipment |
| CN105891276A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Electrification and electric shock hammer adsorption and adjacent capacitor abrasion fine particle on-line monitoring equipment |
| CN105889181A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Monitoring method adopting rotating magnetic-filed centrifuging, adsorbing and proximity capacitance for wear particles |
| CN105909593A (en) * | 2016-05-12 | 2016-08-31 | 绍兴文理学院 | Abrasion particle monitoring method based on magnetic field centrifugation, electric shock hammer adsorption and adjacent capacitance |
| CN105909592A (en) * | 2016-05-12 | 2016-08-31 | 绍兴文理学院 | Abrasion particle monitoring method based on magnetic field centrifugation, electric-control ring adsorption and adjacent capacitance |
| CN105928843A (en) * | 2016-05-12 | 2016-09-07 | 绍兴文理学院 | Wear particle online monitoring device adopting rotational flow centrifugation, adsorption and adjacent capacitance |
| CN106018211A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | On-line wear particle monitoring method achieved through centrifugation, electric control ring adsorption and adjacent capacitance |
| CN114295526A (en) * | 2021-12-31 | 2022-04-08 | 哈尔滨工程大学 | Bypass fluid grit monitoring trapping apparatus |
-
1997
- 1997-11-18 CN CN 97242112 patent/CN2336362Y/en not_active Expired - Fee Related
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101832460A (en) * | 2010-05-21 | 2010-09-15 | 朱子新 | Engine oil filter element abrasive dust detector |
| CN102734183A (en) * | 2011-03-29 | 2012-10-17 | Abb公司 | Method of detecting wear in a pump driven with a frequency converter |
| US9027398B2 (en) | 2011-03-29 | 2015-05-12 | Abb Oy | Method of detecting wear in a pump driven with a frequency converter |
| CN102734183B (en) * | 2011-03-29 | 2016-03-16 | Abb技术有限公司 | For detecting method and the mechanism of the wearing and tearing of the pump being controlled by frequency variator |
| CN102226751A (en) * | 2011-04-02 | 2011-10-26 | 合肥工业大学 | Friction tester for dense granules |
| CN103995098A (en) * | 2014-05-13 | 2014-08-20 | 中联重科股份有限公司 | Engineering machine, and detection control apparatus, detection system and detection method for oil contamination level of engineering machine |
| CN103995098B (en) * | 2014-05-13 | 2015-08-12 | 中联重科股份有限公司 | Engineering machinery and contamination level of oil liquid detection control apparatus, detection system and method |
| CN105891276A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Electrification and electric shock hammer adsorption and adjacent capacitor abrasion fine particle on-line monitoring equipment |
| CN105891280A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Electrification, centrifugation, absorption and adjacent capacitor abrasion fine particle on-line monitoring equipment |
| CN105889181A (en) * | 2016-05-12 | 2016-08-24 | 绍兴文理学院 | Monitoring method adopting rotating magnetic-filed centrifuging, adsorbing and proximity capacitance for wear particles |
| CN105909593A (en) * | 2016-05-12 | 2016-08-31 | 绍兴文理学院 | Abrasion particle monitoring method based on magnetic field centrifugation, electric shock hammer adsorption and adjacent capacitance |
| CN105909592A (en) * | 2016-05-12 | 2016-08-31 | 绍兴文理学院 | Abrasion particle monitoring method based on magnetic field centrifugation, electric-control ring adsorption and adjacent capacitance |
| CN105928843A (en) * | 2016-05-12 | 2016-09-07 | 绍兴文理学院 | Wear particle online monitoring device adopting rotational flow centrifugation, adsorption and adjacent capacitance |
| CN106018211A (en) * | 2016-05-12 | 2016-10-12 | 绍兴文理学院 | On-line wear particle monitoring method achieved through centrifugation, electric control ring adsorption and adjacent capacitance |
| CN114295526A (en) * | 2021-12-31 | 2022-04-08 | 哈尔滨工程大学 | Bypass fluid grit monitoring trapping apparatus |
| CN114295526B (en) * | 2021-12-31 | 2024-04-12 | 哈尔滨工程大学 | Bypass fluid grit monitoring and capturing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |