CN1877323A - Oil liquid pollution on-line monitoring device - Google Patents
Oil liquid pollution on-line monitoring device Download PDFInfo
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- CN1877323A CN1877323A CN 200610012885 CN200610012885A CN1877323A CN 1877323 A CN1877323 A CN 1877323A CN 200610012885 CN200610012885 CN 200610012885 CN 200610012885 A CN200610012885 A CN 200610012885A CN 1877323 A CN1877323 A CN 1877323A
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Abstract
The invention discloses an oil pollution on-line monitoring device which is characterized in that: the sleeve cylinder (3) of a special hydraulic cylinder (6) is equipped with a piston component (5) in it; the right side of the piston component (5) is directly connected with a valve direct current electromagnet (1); the reset spring (2) in the sleeve cylinder (3) is contacted with the piston component (5); on the left side of the special hydraulic cylinder (6) is equipped with a oil path (7) which is connected with oil path (8, 11, 12, 18); the oil path (12) and oil path (18) are individually equipped with pressure sensors; the oil path (8) and oil path (11) are individually equipped with single-way valve (9, 10); oil path (7) is equipped with a rotary detecting head (17); oil path (4) is connected with oil path (8), and oil path (8, 11) are connected with the pipes of the monitored fluid pressure system.
Description
Technical field
The present invention relates to the oil contamination on-line monitoring field of hydraulic system.
Background technology
The application and the development of modern hydrostatic transmission and control technology make the importance of oil contamination control very outstanding.Oil contamination control is surprising to minimizing and the life-time dilatation effect that hydraulic system fault produces.Existing research data and achievement show, hydraulic system is owing to the fault that fluid and pollution thereof cause accounts for more than 80% of total failare.In addition, under the prerequisite that guarantees the hydraulic work system reliability, oil contamination control can be brought into play the maximum utility of Hydraulic Elements and system.The pollution control of hydraulic oil and analyzing and testing are that modern hydraulic systems obtains the necessary technical measures of best effort effect.Therefore, the oil contamination of hydraulic system is monitored, have positive and important meaning.
By analysis to the domestic and international existing oil contamination control technology of part, existing oil contamination analyzing detecting method and technology have following characteristics: detect principle, method is various, the detecting instrument performance is different, version is various, in various occasion certain use value is arranged, but most detecting instruments all belong to offline inspection, the equipment complexity, the cost height, assay method is loaded down with trivial details, and undue the dependence manually obtains data and carry out information processing, and sense cycle is long, for away from breadboard hydraulically operated equipment (HOE), can not accomplish real time on-line monitoring.And online automatic particle collector can not be widely used in the on-the-spot hydraulic system owing to the more high factor of price.
Chinese patent " on-line monitor for pollution in hydraulic system oil liquid " ZL01122214.X discloses a kind of oil liquid pollution on-line monitoring device.The shortcoming of this device is that its employed electromagnet thrust is big inadequately, causes the detection error bigger; The specially made hydraulic cylinder structure is complicated, and processing and installation are inconvenient; The syndeton complexity of double electromagnet and piston component, and utilize the stepper motor rotary measuring head, the manufacturing cost height.
Summary of the invention
In order to overcome existing oil contamination pick-up unit equipment complexity, the cost height, the loaded down with trivial details deficiency that waits of assay method the invention provides a kind of oil liquid pollution on-line monitoring device, this device can on-line monitoring goes out the class of pollution of fluid, can send alerting signal when oil contamination transfinites.
This oil liquid pollution on-line monitoring device, form with DC electromagnet 1, pressure transducer and microcomputer etc. by valve, device main body is a specially made hydraulic cylinder 6, piston component 5 right sides of specially made hydraulic cylinder 6 directly are connected with DC electromagnet 1 with valve, the left side contacts with back-moving spring 2, the cavity both sides of specially made hydraulic cylinder 6 are processed with oil circuit 7 and oil circuit 4, and oil circuit 7 and oil circuit 4 are connected with oil circuit 8 respectively, retaining valve 9 wherein is installed in the oil circuit 8 and is connected with the pipeline of monitored hydraulic system; Fluid in the oil circuit 4 can enter between piston component 5 and the specially made hydraulic cylinder 6 front and back pressure and the radial force with balanced piston component 5; The rotary measuring head 17 that cooperates with end cap 13 is housed on the oil circuit 7, its upper end is equipped with handle 15, the bottom have one with the perpendicular tapped through hole of the axis of rotary measuring head 17, the dead in line of the axis of tapped through hole and oil circuit 7, the inside is equipped with and is compressed volution 16 and filter membrane 14, and fluid can be flowed out from oil circuit 11 by tapped through hole at last by the cavity oil circuit 7 of flowing through.Retaining valve 10 wherein is installed in the oil circuit 11 and is connected with the pipeline of monitored hydraulic system, oil circuit 18 and oil circuit 12 are connected with oil circuit 7, setting pressure sensor respectively on oil circuit 18 and the oil circuit 12.
Oil liquid pollution on-line monitoring device has adopted two kinds of measuring methods: a kind of be rotary measuring head one all oil extractions once, obtain a differential pressure curve, utilize this curve to draw the pressure reduction maximal value, the database that inquiry is set up according to experiment can draw corresponding oil contamination value; Another kind be rotary measuring head one all oil extractions repeatedly, each oil extraction all obtains a pressure reduction maximal value, these values form a curve, utilize this curve to draw its slope, the database that inquiry is set up according to experiment can draw corresponding oil contamination value.
The invention has the beneficial effects as follows: this device can be in the hydraulic work system process on-line monitoring go out the class of pollution of fluid, can realize functions such as demonstration, storage, printing, when oil contamination transfinites, and can provide alerting signal, remind the staff in time to take measures to prevent the generation of major accident.Compared with prior art, it has strengthened the thrust of electromagnet, and it is more accurate to measure; Optimized the structure of specially made hydraulic cylinder, processed and installed very convenient; Optimized Design of device, electromagnet directly links to each other with piston component, and power loss is very little; Adopt single electromagnet and manual rotary measuring head, reduced the manufacturing cost of device widely.
Description of drawings
Fig. 1 is the on-line monitor for pollution in hydraulic system oil liquid structural representation.
In Fig. 1,1. valve DC electromagnet, 2. back-moving spring, 3. sleeve, 4. oil circuit, 5. piston component, 6. specially made hydraulic cylinder, 7. oil circuit, 8. oil circuit, 9. retaining valve, 10. retaining valve, 11. oil circuits, 12. oil circuits, 13. end cap, 14. filter membranes, 15. handles, 16. compress volution, 17. rotary measuring heads, 18. oil circuits.
Embodiment
Embodiment
Accompanying drawing 1 is an embodiment disclosed by the invention, and piston component 5 is installed in the sleeve 3 of specially made hydraulic cylinder 6, and the right side of piston component 5 directly is connected with DC electromagnet 1 with valve, and the back-moving spring 2 in the sleeve 3 contacts with piston component 5.In the left side of specially made hydraulic cylinder 6 oil circuit 7 is set, oil circuit 7 is connected with oil circuit (8,11,12,18), difference setting pressure sensor on oil circuit 12 and the oil circuit 18, retaining valve (9,10) is housed respectively in oil circuit 8 and the oil circuit 11, rotary measuring head 17 is installed on the oil circuit 7, handle 15 is installed on the top of rotary measuring head 17, tapped through hole of bottom processing of rotary measuring head 17, the dead in line of the axis of tapped through hole and oil circuit 7 respectively is equipped with one and is compressed volution 16 filter membrane 14 is fixed in the tapped through hole both sides; End cap 13 is used for axial restraint rotary measuring head 17.Oil circuit 4 is connected in oil circuit 8, and oil circuit 8 and oil circuit 11 communicate with the pipeline parallel connection of monitored hydraulic system.
Valve is connected to the electrical connector of DC electromagnet 1 and pressure transducer on the terminal strip of data collecting card of microcomputer.
Under the original state, oil circuit 8 and oil circuit 11 are connected in parallel in the pipeline of monitored hydraulic system, and valve is switched on DC electromagnet 1, and specially made hydraulic cylinder 6 seals, and grasp for the oil suction of image data and prepare.
First kind of measuring method: restPose; Valve DC electromagnet 1 (-), specially made hydraulic cylinder 6 oil suctions; Handle 15 clockwise rotates 90 °, for test is prepared; Valve DC electromagnet 1 (+), specially made hydraulic cylinder 6 oil extractions; The time-delay certain hour, the data collecting card collection is installed on the electric signal that the pressure transducer of special filter membrane 14 front and back is converted, by filtering, calculation process, draw the pressure reduction of special filter membrane front and back, and table look-up and find out corresponding contamination level of oil liquid value, then the contamination level of oil liquid value is sent display to show, and printable output; Handle 15 clockwise rotates 90 °, sealing specially made hydraulic cylinder 6; Valve DC electromagnet 1 (-), specially made hydraulic cylinder 6 oil suction once more is for counterflush filter membrane 14 is prepared; Handle 15 clockwise rotates 90 °; Valve DC electromagnet 1 (+), the special filter membrane of counterflush; Handle 15 clockwise rotates 90 °, restPoses.
Second kind of measuring method: restPose; Valve DC electromagnet (-), specially made hydraulic cylinder 6 oil suctions; Handle 15 clockwise rotates 90 °, for test is prepared; Valve DC electromagnet 1 (+), specially made hydraulic cylinder 6 oil extractions; The time-delay certain hour, the data collecting card collection is installed on the electric signal that the pressure transducer of special filter membrane 14 front and back is converted, and by filtering, calculation process, draws the pressure reduction maximal value before and after the special filter membrane; Repeat the operation of front, draw a plurality of pressure reduction maximal values and form a curve, utilize this curve to draw its slope, and table look-up and find out corresponding contamination level of oil liquid value, then the contamination level of oil liquid value is sent display to show, and printable output; Handle 15 clockwise rotates 90 °, sealing specially made hydraulic cylinder 6; Valve DC electromagnet 1 (-), specially made hydraulic cylinder 6 oil suction once more is for counterflush filter membrane 14 is prepared; Handle 15 clockwise rotates 90 °; Valve DC electromagnet 1 (+), the special filter membrane of counterflush; Handle 15 clockwise rotates 90 °, restPoses.
If when the contamination level of oil liquid value does not meet the place system requirements, at this moment oil liquid pollution on-line monitoring device will send alerting signal.
Claims (3)
1. oil liquid pollution on-line monitoring device, form with DC electromagnet (1), pressure transducer and microcomputer by valve, it is characterized in that: piston component (5) is installed in the sleeve (3) of specially made hydraulic cylinder (6), the right side of piston component (5) directly is connected with DC electromagnet (1) with valve, and the back-moving spring (2) in the sleeve (3) contacts with piston component (5); In the left side of specially made hydraulic cylinder (6) oil circuit (7) is set, oil circuit (7) is connected with oil circuit (8,11,12,18), oil circuit (12) and oil circuit (18) are gone up setting pressure sensor respectively, retaining valve (9,10) is housed respectively in oil circuit (8) and the oil circuit (11), oil circuit (7) is gone up rotary measuring head (17) is installed, oil circuit (4) is connected in oil circuit (8), and oil circuit (8,11) communicates with the pipeline parallel connection of monitored hydraulic system.
2. oil liquid pollution on-line monitoring device according to claim 1, it is characterized in that: handle (15) is installed on the top of described rotary measuring head (17), tapped through hole of bottom processing of rotary measuring head (17), the dead in line of the axis of tapped through hole and oil circuit (7) respectively is equipped with one and is compressed volution (16) and be used for fixing filter membrane (14) in the tapped through hole both sides; End cap (13) is used for axial restraint rotary measuring head (17).
3. oil liquid pollution on-line monitoring device according to claim 1 and 2 is characterized in that: valve is connected to the electrical connector of DC electromagnet (1) and pressure transducer on the terminal strip of data collecting card of microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100128852A CN100573147C (en) | 2006-06-27 | 2006-06-27 | Oil liquid pollution on-line monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100128852A CN100573147C (en) | 2006-06-27 | 2006-06-27 | Oil liquid pollution on-line monitoring device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1877323A true CN1877323A (en) | 2006-12-13 |
| CN100573147C CN100573147C (en) | 2009-12-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100128852A Expired - Fee Related CN100573147C (en) | 2006-06-27 | 2006-06-27 | Oil liquid pollution on-line monitoring device |
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| CN (1) | CN100573147C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102147404A (en) * | 2010-12-27 | 2011-08-10 | 重庆工商大学 | Online monitoring method and device of pollution degree of lubricant |
| CN102175579A (en) * | 2010-12-31 | 2011-09-07 | 重庆工商大学 | Method and device for monitoring pollution degree of lubricating oil particles according to vibration characteristic |
| CN101533003B (en) * | 2009-04-09 | 2012-07-04 | 西安建筑科技大学 | Device for monitoring oil contamination |
| CN103869056A (en) * | 2012-12-14 | 2014-06-18 | 中航商用航空发动机有限责任公司 | Fuel oil pollution injection system, and fuel oil pollution experiment system comprising fuel oil pollution injection system |
| CN103995098A (en) * | 2014-05-13 | 2014-08-20 | 中联重科股份有限公司 | Engineering machinery and oil contamination degree detection control device, detection system and method thereof |
| CN108332885A (en) * | 2018-03-06 | 2018-07-27 | 中国航发哈尔滨东安发动机有限公司 | A kind of monitoring of structures of power |
-
2006
- 2006-06-27 CN CNB2006100128852A patent/CN100573147C/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101533003B (en) * | 2009-04-09 | 2012-07-04 | 西安建筑科技大学 | Device for monitoring oil contamination |
| CN102147404A (en) * | 2010-12-27 | 2011-08-10 | 重庆工商大学 | Online monitoring method and device of pollution degree of lubricant |
| CN102147404B (en) * | 2010-12-27 | 2014-04-09 | 重庆工商大学 | Online monitoring method and device of pollution degree of lubricant |
| CN102175579A (en) * | 2010-12-31 | 2011-09-07 | 重庆工商大学 | Method and device for monitoring pollution degree of lubricating oil particles according to vibration characteristic |
| CN103869056A (en) * | 2012-12-14 | 2014-06-18 | 中航商用航空发动机有限责任公司 | Fuel oil pollution injection system, and fuel oil pollution experiment system comprising fuel oil pollution injection system |
| CN103869056B (en) * | 2012-12-14 | 2015-12-23 | 中航商用航空发动机有限责任公司 | Fuel oil pollution injected system and fuel oil pollution experimental system thereof |
| CN103995098A (en) * | 2014-05-13 | 2014-08-20 | 中联重科股份有限公司 | Engineering machinery and oil contamination degree detection control device, detection system and method thereof |
| CN103995098B (en) * | 2014-05-13 | 2015-08-12 | 中联重科股份有限公司 | Engineering machinery and oil contamination degree detection control device, detection system and method thereof |
| CN108332885A (en) * | 2018-03-06 | 2018-07-27 | 中国航发哈尔滨东安发动机有限公司 | A kind of monitoring of structures of power |
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| Publication number | Publication date |
|---|---|
| CN100573147C (en) | 2009-12-23 |
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Granted publication date: 20091223 Termination date: 20120627 |