CN2057755U - Iron spectrum slice optical density admeasuring apparatus - Google Patents
Iron spectrum slice optical density admeasuring apparatus Download PDFInfo
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- CN2057755U CN2057755U CN 89218549 CN89218549U CN2057755U CN 2057755 U CN2057755 U CN 2057755U CN 89218549 CN89218549 CN 89218549 CN 89218549 U CN89218549 U CN 89218549U CN 2057755 U CN2057755 U CN 2057755U
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Abstract
The utility model relates to an optical density measuring device, which is mainly used for monitoring the abrasion operating condition of a kinematic pair of a machinery device and analyzing and researching various abrasion mechanisms. The existing optical density measuring device has the disadvantages of multiple impurities of oil sample, serious particle overlapping phenomenon and large random error. The utility model is provided with a spectrum slice frame and a movable optical bar which is vertical to parallel light beam between a parallel light source and a collecting lens, a photoelectric sensor is arranged on a focus of the outer side a condenser lens, the diameter of each light transmission ring of the optical bar and the diameter of a particle precipitation ring of a spectrum plate are the same, and the axial cord of each ring is parallel to the parallel light beam. The utility model has the advantages of high measuring precision, and visual and convenient operation; in addition, the utility model can admeasure the abrasion degree and the abrasion speed rate synchronously; thus, the utility model can be used widely.
Description
The utility model relates to a kind of iron spectrum sheet photo densitometry instrument, is mainly used in the monitoring of plant equipment kinematic pair wear working condition and the analysis and the research of various wear mechanisms.
The serviceable life of the wear working condition direct relation plant equipment of plant equipment; Be that the wear particle of medium carries a large amount of component movement in addition and pays the information that wearing and tearing take place with lubricating oil, size, quantity and the form of therefore analyzing this particle just can be in time and these information of grasp with shutting down, thereby reach the purpose of monitoring wear working condition.(P.Anderson28th June 1982 Telus Inc " Wear Particle Atlas " wear particle collection of illustrative plates) discloses a kind of SOHIO direct-reading iron spectrum photo densitometry instrument in the prior art, by measuring the optical density of sample, analyze the abrasion condition of kinematic pair.It is that (sediment tube is inclined in the magnetic field referring to scheming a), inserts the compartment of terrain, porch in magnetic field at sediment tube light source is installed, at the relative photoelectric sensor that is equipped with light source of another survey of sediment tube that its technology constitutes.Because of the effect in magnetic field, the magnetic conduction particle in the oil sample produces precipitation at the light source place, because sediment tube tilts, and has an interval between two light sources, so be the optical density difference in the solids precipitation situation difference at two light source places.By photoelectric sensor, signal amplification, disposal system, the reading on the reading display also is different.The difference of two squares of two readings promptly can be used as the parameter that characterizes the degree of wear.The weak point of this measuring instrument is: impurity in the oil sample and non-magnetic particle can't be got rid of, and particle overlapping phenomenon is serious, and randomness is big, and measuring accuracy is low, and analytical procedure is complicated, and analysis cost is also high.Another kind of particle quantitative analysis instrument (PQ) in the prior art, referring to (further developing of A.L.Price and B.J.Roylance.Industrial Lubrication and Tribology.Nov/Dec 1985 P232-234 " More about Mouitoring " monitoring), its technology constitutes different with the opacimeter magnetic strength principles that are based on, in the magnetic field of setting up, put into tested sample iron spectrum sheet, cause the variation numerically of magnetic field physical quantity, reach the purpose of quantitative measurement, (annotating: do not retrieve the row concrete structure), therefore it can only synthetically reflect the size and the number of magnetisable material, can not distinguish the distribution situation of magnetic particle size, just can only characterize the degree of wear, and can not characterize rate of depreciation, performance is perfect not to the utmost.
The purpose of this utility model is to overcome existing above-mentioned deficiency in the prior art, and a kind of testing cost is low, easy and simple to handle, measuring accuracy is high and provide, and possesses the iron spectrum sheet photo densitometry instrument of test wear degree and speed simultaneously.
Goal of the invention of the present utility model realizes by following technical solution.The utility model is mainly by light source, photoelectric sensor, and signal amplifier, signal processor and reading display are formed.Light source is a source of parallel light, between source of parallel light and collector lens, be equipped with the perpendicular spectrum sheet bearing support of parallel beam and can move Guang Lan, photoelectric sensor places on the outside focus of collector lens, to be installed on the guiding can be reciprocating device so that the parallel beam that sees through the measured spectrum sheet is all received the light hurdle by photoelectric sensor, or reciprocally swinging mechanism, spectrum sheet bearing support is fixed on the base plate of measuring instrument, and the light hurdle is set up with respect to the measured spectrum sheet that assigns on the spectrum sheet bearing support.Two printing opacity annulus not of uniform size are arranged on the light hurdle, should make when (twice) setting up on the light hurdle two printing opacity annulus respectively with assign into spectrum sheet bearing support in inside and outside two size particles precipitation annulus on the measured spectrum sheet along overlapping fully on the parallel beam direction, so that the measuring error minimum.Light hurdle printing opacity annulus is a necessary and sufficient condition with overlapping fully of solids precipitation annulus, and measurement is had a direct impact.Measured spectrum sheet and bearing support can be placed on the front side or the rear side on light hurdle, as long as all do not influence measurement effect in being in parallel beam.The difference of two squares of measured spectrum sheet two solids precipitation annulus corresponding light density readings is in order to characterize wear working condition.
Description of drawings is as follows:
Figure a is the direct-type ferrograph structural representation of correlation technique.
Figure b is a pivoting rail spectrum sheet size particles distribution schematic diagram.
Fig. 1 is the utility model photo densitometry instrument structural representation.
Fig. 2-Fig. 3 is two kinds of light path design figure of the utility model source of parallel light.
Fig. 4 is a smooth hurdle of the present utility model structural representation.
Fig. 5 is the A-A cut-open view of Fig. 4.
Fig. 6 is that the B of Fig. 4 is to synoptic diagram.
Fig. 7 is another version on the utility model light hurdle.
The utility model will be described in further detail in conjunction with the accompanying drawings.
As shown in Figure 1, the photo densitometry instrument mainly by source of parallel light 1, collector lens 6, spectrum sheet bearing support 3, can move light hurdle 4, photoelectric sensor 7, signal amplifier 8, signal processor 9 and reading display 10 and constitute.Between source of parallel light 1 and collector lens 6, be equipped with the perpendicular spectrum sheet bearing support of parallel beam 3 and can move light hurdle 4.For the light beam by measured spectrum sheet 2 is all received at photoelectric sensor 7, thereby photoelectric sensor 7 should be on the focus in collector lens 6 outsides.Light hurdle 4 can be directed at the vertical parallel beam direction along it and move back and forth, and adjusts with respect to the measured spectrum sheet 2 that assigns on the spectrum sheet bearing support 3.Move into place in order to control light hurdle 4, and carry out the reading value switching automatically, the line that microswitch 5, two microswitches 5 have been installed in a side on light hurdle 4 is parallel just vertical with parallel beam with light hurdle 4, makes operation more easy.Photo densitometry instrument of the present utility model is performed such work: producing pivoting rail spectrum sheet by the pivoting rail spectrometer earlier is measured spectrum sheet 2, this iron spectrum sheet has following characteristics (referring to figure b), magnetic-particle is arranged with the form of two donuts, bulky grain is in interior ring, granule is in outer shroud (by the rotating speed decision of magnetic field gradient and rotation magnetic platform), size particles be arranged with significantly circumference.After making, measured spectrum sheet 2 assigns into the measurement of carrying out optical density on the spectrum sheet bearing support 3, spectrum sheet bearing support 3 is depended in spectrum sheet 2 positions, therefore the design and the installation site of composing sheet bearing support 3, be in vertical in the time of should making spectrum sheet 2 in place with parallel beam and measured spectrum sheet circle ring center parallel with the focus line of collector lens 6 with parallel beam.After the spectrum sheet is assigned and finished, can adjust the position on light hurdle 4, the big or small printing opacity annulus on the light hurdle 4 is coincided with the formed inside and outside annulus of composing on the sheet 2 of solids precipitation respectively, at this moment reading display 10 just has the corresponding optical density value of two particle annulus.For the purpose of saying something conveniently, establish: the optical density value of bulky grain annulus is R
1, the optical density value of granule annulus is R
2, with I
SCharacterize serious wear degree index, following relationship formula I is then arranged
S=R
2 1-R
2 2=(R
1+ R
2) (R
1-R
2), (R in the formula
1+ R
2) represent the degree of wear, (R
1-R
2) represent rate of depreciation.Light activated element 11 is 100 for the full journey of measuring instrument is demarcated just among Fig. 1, and the reading intuitive and convenient is provided with.Photoelectric sensor 7, signal amplifier 8, signal processor 9 and reading display 10 among Fig. 1 has in general photo densitometry instrument and adopts as functional circuit in addition, and its circuit theory is identical, repeats no more.
The refraction of the light path design of source of parallel light 1 as shown in Figure 2, pointolite 1 ' be in lens 1 " focus on, the diverging light of pointolite 1 ' generation is through lens 1 " forms parallel beam at last.
The light path design of source of parallel light 1 as shown in Figure 3, pointolite 1 ' be in parabolic reflector face 1 " ' focus; the diverging light of pointolite 1 ' generation is through mirror surface 1 " ' reflection after form parallel beam, the scope of its vertical cross-section should comprise the printing opacity annulus on light hurdle 4.
As Fig. 4～spectrum sheet bearing support and light hurdle structure shown in Figure 6 is the main structural components that the utility model is different from other photo densitometry instrument.The guiding trestle 12 on spectrum sheet bearing support 3 and light hurdle 4 all is fixed on the base plate of measuring instrument, and the guiding 13 on light hurdle 4 is two guide pillars parallel to each other, and light hurdle 4 is installed on this guiding 13, can move setting toward complex line along its 13 works that lead.The light hurdle 4 and the measured spectrum sheet 2 positions relation on the spectrum sheet bearing support 3 of assigning are determined by light hurdle guiding 13 and spectrum sheet bearing support 3, require light hurdle 4 and measured spectrum sheet 2 to be parallel to each other during measurement, light hurdle 4 is adjusted along its guiding 13, make on this light hurdle 4 that inside and outside two solids precipitation annulus overlap respectively on two printing opacity annulus of size and the measured spectrum sheet 2, (being axis coaxle) be the random deviation of measurement minimum at this moment.Therefore should guarantee on the structure: light hurdle 4 is parallel with measured spectrum sheet 2, the axis of two printing opacity annulus is all parallel with the parallel beam that source of parallel light produces with the axis of the measured spectrum sheet 2 solids precipitation annulus that assign into spectrum sheet bearing support 3 on the light hurdle 4, and optimum condition is three axis coplanes.Big or small printing opacity annulus on the light hurdle 4 is to form like this." fit, the size of formed big or small two printing opacity annulus is identical with solids precipitation annulus on the measured spectrum sheet 3 respectively, (just in time overlapping at the parallel beam projecting direction when light hurdle 4 is set up) for metal perforated plate 4 ' be coated with welding glass anti-dazzling screen 4 with the central area.14 is the tractive handle on light hurdle 4 among Fig. 4-Fig. 6.
Fixed point reciprocally swinging light hurdle structure shown in Figure 7, the printing opacity annulus on this light hurdle 4 is identical with aforesaid (shown in Figure 5), and just replacement has been done with respect to the structure of measured spectrum sheet adjustment in the light hurdle.Light hurdle 4 is arranged on the fan-shaped tablet 15, this fan-shaped tablet 15 dead axles swing, and the axis of its axis of swing 16 is parallel with parallel beam, and the two printing opacity annulus on light hurdle 4 should be located on the same swing camber line.Adjust time hurdle 4 and the incision of parallel beam orthogonal directions, make two printing opacity annulus respectively with measured spectrum sheet 2 on the solids precipitation annulus coincide at the parallel beam projecting direction.Therefore the radius of swinging camber line should be identical apart from the vertical range in the measured spectrum sheet solids precipitation annulus center of circle with the swing fulcrum.
The utility model compared with prior art has following advantage.
1, compares with SOHIO direct-reading photo densitometry instrument, this instrument is not that the very little scopes of at random two in the solids precipitation district are measured, but whole solids precipitations are divided into two its OD values of area measure that represent respectively size particles, fundamentally eliminated impurity and particle overlapping phenomenon, and the big defective of spot sampling's random error. Measurement shows that the error of SOHIO is that 6-9% and this measuring instrument only are 1-2%.
2, compare with (PQ) particle quantitative analysis instrument, though all compose sheet as measuring phenomenon with pivoting rail, but because of the PQ instrument based on the magnetic strength principle, can only synthetically estimate the overall degree of wear, and this instrumental function is more complete, precision is also high, and it is low, easy and simple to handle and be easy to advantages such as manufacturing that this measuring instrument also has an analysis cost: this measuring instrument also leaves data output interface in addition, can join printer, draught machine or directly import computer system and handle and store, can carry out the analysis and the research of various wear mechanisms easily.
Claims (5)
1, a kind of iron spectrum sheet photo densitometry instrument that is used for the equipment wearing monitoring of working condition, mainly form by light source, photoelectric sensor, signal amplifier, signal processor and reading display, it is characterized in that: light source is a source of parallel light 1, between source of parallel light 1 and collector lens 6, be equipped with spectrum sheet bearing support 3 and with perpendicular the moved light hurdle 4 of parallel beam, on the focus in collector lens 6 outsides, place photoelectric sensor 7.
2, the photo densitometry instrument shown in claim 1 is characterized in that: the axis of two printing opacity annulus is all parallel with the parallel beam that source of parallel light 1 produces with the measured spectrum sheet 2 solids precipitation annulus axis on assigning into spectrum sheet bearing support 3 on the light hurdle 4.
3, photo densitometry instrument as claimed in claim 1 is characterized in that: the scope of the source of parallel light 1 parallel beam vertical cross-section that produces should comprise the printing opacity annulus on light hurdle 4.
4, photo densitometry instrument as claimed in claim 1 is characterized in that: on the light hurdle 4 on big or small printing opacity annulus and the measured spectrum sheet 2 diameter of corresponding little big two kinds of solids precipitation annulus identical.
5, photo densitometry instrument as claimed in claim is characterized in that: the side on light hurdle 4 is equipped with and is used to control light hurdle 4 and moves into place, and carries out the microswitch 5 that reading switches, and the line of this microswitch 5 is parallel with light hurdle 4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218549 CN2057755U (en) | 1989-10-24 | 1989-10-24 | Iron spectrum slice optical density admeasuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89218549 CN2057755U (en) | 1989-10-24 | 1989-10-24 | Iron spectrum slice optical density admeasuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2057755U true CN2057755U (en) | 1990-05-30 |
Family
ID=4873587
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89218549 Withdrawn CN2057755U (en) | 1989-10-24 | 1989-10-24 | Iron spectrum slice optical density admeasuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2057755U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454184A (en) * | 2013-08-20 | 2013-12-18 | 第一拖拉机股份有限公司 | Method for judging faults of bearing bush part inside medium-and-large diesel engine |
| CN106248539A (en) * | 2016-09-22 | 2016-12-21 | 中国矿业大学 | A kind of rotary-ferrograph spectral slice photo densitometry analyzes system and method |
| CN108414409A (en) * | 2018-05-11 | 2018-08-17 | 中国矿业大学 | A kind of rotary-ferrograph spectral slice image capturing system and method |
-
1989
- 1989-10-24 CN CN 89218549 patent/CN2057755U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103454184A (en) * | 2013-08-20 | 2013-12-18 | 第一拖拉机股份有限公司 | Method for judging faults of bearing bush part inside medium-and-large diesel engine |
| CN106248539A (en) * | 2016-09-22 | 2016-12-21 | 中国矿业大学 | A kind of rotary-ferrograph spectral slice photo densitometry analyzes system and method |
| CN108414409A (en) * | 2018-05-11 | 2018-08-17 | 中国矿业大学 | A kind of rotary-ferrograph spectral slice image capturing system and method |
| CN108414409B (en) * | 2018-05-11 | 2024-04-30 | 中国矿业大学 | System and method for collecting spectrum sheet image of rotary ferrograph |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |