CN113405933B - Oil abrasive particle analyzer - Google Patents
Oil abrasive particle analyzer Download PDFInfo
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- CN113405933B CN113405933B CN202110680718.XA CN202110680718A CN113405933B CN 113405933 B CN113405933 B CN 113405933B CN 202110680718 A CN202110680718 A CN 202110680718A CN 113405933 B CN113405933 B CN 113405933B
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- 239000002245 particle Substances 0.000 title claims abstract description 57
- 238000001514 detection method Methods 0.000 claims abstract description 99
- 230000002572 peristaltic effect Effects 0.000 claims abstract description 26
- 239000012530 fluid Substances 0.000 claims abstract description 23
- 239000007788 liquid Substances 0.000 claims description 63
- 238000004140 cleaning Methods 0.000 claims description 27
- 239000000758 substrate Substances 0.000 claims description 18
- 238000012634 optical imaging Methods 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 12
- 239000002699 waste material Substances 0.000 claims description 12
- 239000006061 abrasive grain Substances 0.000 claims description 10
- 238000004806 packaging method and process Methods 0.000 claims description 7
- 230000008569 process Effects 0.000 claims description 7
- 238000005406 washing Methods 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 4
- 238000012360 testing method Methods 0.000 claims description 4
- 238000004891 communication Methods 0.000 claims description 3
- 230000003993 interaction Effects 0.000 claims description 3
- 230000010354 integration Effects 0.000 abstract description 3
- 238000004458 analytical method Methods 0.000 description 11
- 238000001228 spectrum Methods 0.000 description 11
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 8
- 238000013461 design Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- CYTYCFOTNPOANT-UHFFFAOYSA-N Perchloroethylene Chemical group ClC(Cl)=C(Cl)Cl CYTYCFOTNPOANT-UHFFFAOYSA-N 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 2
- 238000004364 calculation method Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000011156 evaluation Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 229910052742 iron Inorganic materials 0.000 description 2
- 230000007246 mechanism Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229950011008 tetrachloroethylene Drugs 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 230000000877 morphologic effect Effects 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 238000004451 qualitative analysis Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N3/00—Investigating strength properties of solid materials by application of mechanical stress
- G01N3/56—Investigating resistance to wear or abrasion
- G01N3/565—Investigating resistance to wear or abrasion of granular or particulate material
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/0606—Investigating concentration of particle suspensions by collecting particles on a support
- G01N15/0612—Optical scan of the deposits
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/06—Investigating concentration of particle suspensions
- G01N15/075—Investigating concentration of particle suspensions by optical means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/10—Investigating individual particles
- G01N2015/1024—Counting particles by non-optical means
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
The invention relates to an oil abrasive particle analyzer, which comprises a first shell, a peristaltic pump, a pinch valve and a detection unit, wherein the peristaltic pump, the pinch valve and the detection unit are all positioned in the first shell, the detection unit is fixed on the inner surface of the first shell, and the detection unit is used for carrying out data acquisition on abrasive particle characteristics in oil; the peristaltic pump is positioned on the side of the detection unit and fixedly connected with the first shell, and is used for alternatively extruding and releasing fluid in the pipeline to pump the fluid; the device comprises a peristaltic pump, a first shell, a pinch valve, a control element, a valve, a detection unit, a detection device and a detection device, wherein the pinch valve is arranged on the side of the peristaltic pump and fixedly connected with the inner surface of the first shell, the pinch valve is used for controlling the on-off of a pipeline, the control element, the peristaltic pump, the valve and the detection unit are integrated into a whole, the components are connected compactly through the structural layout, the size of the existing detection device is reduced, the miniaturization and the integration of the abrasive particle detection device are realized, and the abrasive particle detection of deep color sample oil is realized.
Description
Technical Field
The invention belongs to the field of equipment wear state monitoring, and relates to an oil abrasive particle analyzer.
Background
The friction loss between each part in mechanical equipment is inevitable all can produce, and the grit and some external pollutants that produce in the mechanical operation process can lead to the vice lubricated state degradation of friction, and then form wearing and tearing, finally cause equipment trouble or damage. In order to monitor the internal wear condition of the machine in time, a ferrographic analysis method is mostly adopted on site to analyze abrasive particles contained in oil liquid in the machine, and the wear state of parts in the machine can be known in time by acquiring the form and quantity information of the abrasive particles. The particle size range of abrasive particles which usually cause abrasion is between several micrometers and hundreds of micrometers, the detection and analysis of the abrasive particles with small particle size are generally difficult, and an analytical ferrograph is usually adopted for realization, but the detection can be completed only by operators with higher professional knowledge through complicated steps and a longer time, and the large-scale popularization and use are difficult; and by adopting other principles such as inductance and the like, the detection and analysis of the abrasive particles below dozens of micrometers are difficult to realize, and the application range has great limitation under the background of wide application of precision machinery. After mechanical equipment runs for a long time, oil playing a lubricating role inside can be turbid, or the oil is in a dark color state, so that when ferrography analysis is carried out, special treatment needs to be carried out on the oil in advance, and the problems of complexity and poor effectiveness are caused.
Chinese patent document CN100365410C discloses an on-line digital image type electromagnetic permanent magnet hybrid excitation iron spectrum sensor, which comprises iron cores, coils and magnetic poles, wherein the coils are sleeved on the iron cores, the magnetic poles are fixed on the iron cores, permanent magnets are arranged in the gaps between the two iron cores, at least one auxiliary working air gap is arranged in the magnetic circuit, a main working air gap is left in the middle of the magnetic poles, light guide glass is installed in the main working air gap of the magnetic poles, a flat light source is installed in the middle of the magnetic poles, and the flat light source is connected with the magnetic poles and the light guide glass; the magnetic pole is provided with a flow channel, a lens is arranged in the flow channel, the lens is connected with one or more CMOS image sensors, the CMOS image sensors are connected on a printed circuit board, and the printed circuit board is provided with an output port. The device reduces the volume and the power consumption of the online ferrographic sensor through the use of a hybrid excitation mode and a CMOS image sensor, and can acquire ferrographic image information of worn abrasive particles in real time. But the ferrographic detection can only be carried out to transparent oil in the device, if the oil is turbid or non-transparent, the device can not carry out on-line detection to the grit, and its service condition is restricted, and oil can the testing result cause the influence in the testing process.
Chinese patent document CN109900600A discloses an online intelligent detection type ferrograph analyzer and a detection method thereof, which is characterized in that: the method comprises the following steps that oil to be detected enters an ultrasonic oscillator through an oil inlet interface, an oil inlet flange, an oil conveying pipe, a two-position two-way valve and an oil outlet pipe, is mixed with tetrachloroethylene, a substrate is pushed to a spectrum making sleeve by a rack push plate, a magnetic field is started, the mixed oil flows through the substrate to complete spectrum making, a spectrum sheet is pushed to a photo station by the rack push plate to complete the identification and storage of an iron spectrum, and then tetrachloroethylene is injected into the ultrasonic oscillator and flows through the spectrum making sleeve to complete cleaning; and controlling the execution and stop of all actions by comparing the number of the placed substrates with the cycle number. This analysis appearance can carry out ferrographic analysis's online intellectual detection system work effectively, and this analysis appearance has washd the grit, but on the one hand, detects in the device and has gone on in different mechanisms with the washing, and equipment volume is great, and on the other hand because there is the residual liquid drop between the back grit that finishes washing and the spectrum piece, can cause the influence to the result of detecting, and the accuracy is lower, and if the cleaner volatilize totally then consuming time longer, equipment detection efficiency is lower.
Disclosure of Invention
Aiming at the problems in the prior art, the invention discloses an oil abrasive particle analyzer, wherein a control element, a peristaltic pump, a valve and a detection unit are integrated into a whole, and the parts are compactly connected through the structural layout, so that the miniaturization and integration of abrasive particle detection equipment are realized, the volume of the existing detection equipment is reduced, and the existing detection equipment is more convenient to carry and use.
The technical scheme adopted by the invention for solving the technical problems is as follows: an oil abrasive particle analyzer comprises a first shell, a peristaltic pump, a pinch valve and a detection unit, wherein the peristaltic pump, the pinch valve and the detection unit are all located inside the first shell, the detection unit is fixed on the inner surface of the first shell, and the detection unit is used for carrying out data acquisition on abrasive particle characteristics in oil; the peristaltic pump is positioned on the side of the detection unit and fixedly connected with the first shell, and is used for alternatively extruding and releasing fluid in the pipeline to pump the fluid; the pinch valve is positioned on the side of the peristaltic pump, the pinch valve is fixedly connected with the inner surface of the first shell, the pinch valve is used for controlling the on-off of the pipeline,
the pinch valve is provided with at least one cleaning fluid connecting port, at least one sample oil connecting port and at least one liquid outlet, wherein one end of a cleaning pipeline is connected to the cleaning fluid connecting port, and the other end of the cleaning pipeline is communicated with a storage container for storing cleaning fluid; one end of a sample oil pipeline is connected to the sample oil connection port, and the other end of the sample oil pipeline is communicated with a storage container for storing sample oil; the liquid outlet is communicated with one end of a liquid outlet pipeline, and the other end of the liquid outlet pipeline is communicated with the detection unit; the peristaltic pump is positioned on the liquid outlet pipeline and alternately extrudes and releases fluid in the liquid outlet pipeline to pump the fluid to enter the detection unit;
the detection unit comprises a packaging shell and a detection assembly, wherein the packaging shell comprises an upper cover plate, a lower cover plate and a second shell, the upper cover plate is connected to the top surface of the second bottom surface, the lower cover plate is connected to the bottom surface of the second shell, and the lower cover plate is fixedly connected with the first shell; the detection assembly is positioned inside the packaging shell, and the bottom of the detection assembly is fixedly connected with the lower cover plate; the detection assembly comprises a detection body, an optical imaging assembly and a magnetic assembly, wherein two oil holes and a liquid guide channel are formed in the detection body, the oil holes are respectively located at two ends of the liquid guide channel, and the oil holes are communicated with the liquid guide channel; one oil hole on the detection body is communicated with the liquid outlet pipeline, and the other oil hole is communicated with the waste liquid pipeline; the top surface of the detection body is provided with a detection hole, the optical imaging assembly is sleeved in the detection hole, and the bottom surface of the detection body is fixedly connected with the magnetic assembly.
Further, the first shell comprises a front panel, a rear panel, a bottom plate and an upper cover, wherein the bottom plate is horizontally arranged, the front panel is connected with one side edge of the bottom plate, and the front panel is obliquely arranged; the rear panel is connected with the opposite side edges of the bottom plate, and the rear panel is perpendicular to the bottom plate; the upper cover is of a rectangular frame structure with an opening formed in one side, and the upper cover is connected with the front panel, the bottom plate and the rear panel to form a closed shell structure with a hollow interior.
Furthermore, the front panel of the first shell is an arc-shaped surface, and a display screen assembly for man-machine interaction operation is arranged on the arc-shaped surface.
Furthermore, the inside of first casing is equipped with power supply unit and control assembly, wherein power supply unit and control assembly all are close to screen subassembly fixed connection is in the inside bottom surface of first casing, power supply unit is used for storing the electric current that external power source lets in and supplies power to other subassemblies in the first casing.
Furthermore, the control assembly comprises an industrial control main board, a D/A control board and a main board support, wherein the main board support is L-shaped, the upper horizontal side of the main board support is fixedly connected with the first shell, the upper vertical side of the main board support is provided with a plurality of supporting column fixing holes, and each supporting column fixing hole is connected with one fixing supporting column; the industrial control mainboard and the DA control panel are arranged on two sides of the vertical side of the mainboard support in a relatively parallel mode, the industrial control mainboard and the DA control panel are respectively connected and fixed on the mainboard support through a plurality of fixing support columns, and radiating fins are arranged on the side face of the industrial control mainboard.
Further, an electrical interface assembly is arranged on the rear side surface of the first shell, the electrical interface assembly comprises a power supply interface, a USB interface and a network interface, the power supply interface is electrically connected with the power supply assembly, and the power supply interface is used for introducing an external power supply to the power supply assembly; the USB interface and the network interface are respectively connected with the industrial control mainboard through signal lines, the USB interface is used for accessing data information to the inside of the equipment and connecting external equipment, and the network interface is used for network data transmission communication.
Furthermore, the side of the first shell is provided with an oil joint assembly, the oil joint assembly is internally provided with at least one cleaning liquid joint, at least one sample oil joint and at least one waste liquid joint, the cleaning liquid joint is communicated with the cleaning pipeline, the sample oil joint sample oil pipeline is communicated, and the waste liquid joint waste liquid pipeline is communicated.
Furthermore, a collecting lens, a collecting camera, an inner sleeve, an annular light source and a camera fixing plate are arranged in the optical imaging assembly, wherein the collecting lens is installed on the collecting camera, the annular light source is located at the end part of the collecting lens, an annular light homogenizing plate is arranged below the annular light source, and the light homogenizing plate and the annular light source are installed on the collecting lens through the inner sleeve; the camera fixing plate is of a T-shaped structure, the collecting camera and the detecting body are respectively connected with the camera fixing plate, and the camera fixing plate keeps the relative positions among the collecting lens, the collecting camera, the inner sleeve and the annular light source fixed.
Further, a strip-shaped liquid guide channel is arranged on the bottom surface of the detection body and is of a stepped structure, a transparent flow guide substrate is arranged on the uppermost layer of the liquid guide channel, an opaque background substrate is arranged on the lowermost layer of the liquid guide channel, and a flowing space for liquid medium flowing is arranged between the flow guide substrate and the background substrate.
Compared with the prior art, the invention has the following advantages:
1) the oil abrasive particle analyzer can complete quantitative calculation of abrasive particle characteristic parameters, collect and store abrasive particle spectrograms for visual qualitative analysis and realize analysis and judgment of abrasion change trend by automatic rapid processing, automatic high-precision abrasive particle spectrum making, abrasive particle identification and analysis and state evaluation algorithms on an oil sample, and is more comprehensive and complete in function; the particle size detection and identification range of the abrasive particles which is superior to ten micrometers can be realized, the operation is convenient, and no special skill requirement is required on users, so that the method has remarkable comprehensive comparison advantages compared with the prior art.
2) The oil abrasive particle analyzer integrates an oil inlet pipeline and a cleaning pipeline, and realizes that sample oil and cleaning liquid are alternately injected into a detection unit by controlling and switching the pipelines communicated with the detection unit, so that abrasive particles in the sample oil are cleaned by the cleaning liquid in the abrasive particle detection process, and the sample oil is separated from the abrasive particles.
3) The oil abrasive particle analyzer integrates the control element, the peristaltic pump, the valve and the detection unit, and enables the components to be compactly connected through the structural layout, so that the miniaturization and integration of abrasive particle detection equipment are realized, the volume of the existing detection equipment is reduced, the existing detection equipment is more convenient to carry, in addition, the detection unit in the equipment is packaged by adopting a closed shell, the external environment is separated from the detection unit, the influence of the external environment on the acquisition result of a camera can be avoided, and the accuracy of the detection result is further improved.
Drawings
FIG. 1 is a block diagram of an oil particle analyzer according to an embodiment of the present invention;
FIG. 2 is a schematic view of the internal structure of an oil particle analyzer according to an embodiment of the present invention;
FIG. 3 is a top view of an oil particle analyzer in accordance with an embodiment of the present invention;
FIG. 4 is a rear view of an oil abrasive particle analyzer in an embodiment of the present invention;
FIG. 5 is a block diagram of a detecting unit in the embodiment of the present invention;
FIG. 6 is a block diagram of a detection assembly in an embodiment of the invention;
fig. 7 is a sectional view showing the internal structure of a specimen in the embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings of the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be obtained by a person skilled in the art without any inventive step based on the embodiments of the present invention, are within the scope of the present invention.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Example 1:
as shown in fig. 1 to 3, the embodiment discloses an oil abrasive particle analyzer, which includes a first housing 1, a peristaltic pump 4, a pinch valve 5, and a detection unit 2, where the peristaltic pump 4, the pinch valve 5, and the detection unit 2 are all located inside the first housing 1, the detection unit 2 is fixed on an inner surface of the first housing 1, and the detection unit 2 is used for collecting data of an abrasive particle characteristic in oil; the peristaltic pump 4 is located on the side of the detection unit 2, the peristaltic pump 4 is fixedly connected with the first shell 1, and the peristaltic pump 4 is used for alternately extruding and releasing fluid in a pipeline to pump the fluid; the pinch valve 5 is located on the side of the peristaltic pump 4, the pinch valve 5 is fixedly connected with the inner surface of the first shell 1, and the pinch valve 5 is used for controlling the on-off of a pipeline.
The pinch valve 5 is provided with at least one cleaning liquid connecting port, at least one sample oil connecting port and at least one liquid outlet, wherein the cleaning liquid connecting port is connected with one end of a cleaning pipeline, and the other end of the cleaning pipeline is communicated with a storage container for storing cleaning liquid; one end of a sample oil pipeline is connected to the sample oil connection port, and the other end of the sample oil pipeline is communicated with a storage container for storing sample oil; the liquid outlet is communicated with one end of a liquid outlet pipeline, and the other end of the liquid outlet pipeline is communicated with the detection unit 2; the peristaltic pump 4 is located on the liquid outlet pipe, and the peristaltic pump 4 alternately extrudes and releases fluid in the liquid outlet pipe to pump the fluid to enter the detection unit 2.
More specifically, since the pinch valve 5 is located inside the first housing 1, and the storage container storing the cleaning solution and the storage container storing the sample oil are located outside the first housing 1, in order to ensure that the cleaning pipeline and the sample oil pipeline communicate the storage container with the pinch valve 5, an oil joint assembly is arranged on a side surface of the first housing 1, and at least one cleaning solution port, at least one sample oil port and at least one waste liquid port are arranged in the oil joint assembly, wherein the cleaning solution port is communicated with the cleaning pipeline, the sample oil port is communicated with the sample oil pipeline, and the waste liquid port is communicated with the waste liquid pipeline.
As shown in fig. 5, the detecting unit 2 includes a package casing and a detecting assembly 201, wherein the package casing includes an upper cover plate 2021, a lower cover plate 2023 and a second casing 2022, the upper cover plate 2021 is connected to the top surface of the second casing 2022, the lower cover plate 2023 is connected to the bottom surface of the second casing 2022, and the lower cover plate 2023 is fixedly connected to the first casing 1; the detection assembly 201 is located inside the packaging shell, and the bottom of the detection assembly 201 is fixedly connected with the lower cover plate 2023; referring to fig. 6 and 7, the detecting assembly 201 includes a detecting body 2015, an optical imaging assembly and a magnetic assembly 2016, the detecting body 2015 is provided with two oil holes and a liquid guide channel 2015b, the oil holes are respectively located at two ends of the liquid guide channel 2015b, and the oil holes and the liquid guide channel 2015b are kept communicated; one oil hole in the detection body 2015 is communicated with the liquid outlet pipeline, and the other oil hole is communicated with the waste liquid pipeline; the top surface of detection body 2015 is equipped with inspection hole 2015a, the cover is equipped with in inspection hole 2015a the optical imaging subassembly, the bottom surface and the magnetic component 2016 fixed connection of detection body 2015. Adopt the optical imaging subassembly to carry out image acquisition among the detecting element 2, in order to ensure that the collection image is clear accurate, through second casing 2022 with the airtight encapsulation of detecting element 201, can completely cut off environmental impact such as external floating dust, steam, temperature, illumination, ensure that the testing result is accurate.
Specifically, in the analyzer, the first housing 1 includes a front panel, a rear panel, a bottom plate and an upper cover, wherein the bottom plate is horizontally disposed, the front panel is connected with one side edge of the bottom plate, and the front panel is obliquely disposed; the rear panel is connected with the opposite side edges of the bottom plate, and the rear panel is perpendicular to the bottom plate; the upper cover is of a rectangular frame structure with an opening formed in one side, and the upper cover is connected with the front panel, the bottom plate and the rear panel to form a closed shell structure with a hollow interior. Further, the front panel of the first shell 1 is an arc-shaped surface, and a display screen assembly for man-machine interaction operation is arranged on the arc-shaped surface. Referring to fig. 4, an electrical interface assembly 8 is disposed on a rear side surface of the first housing 1, where the electrical interface assembly 8 includes a power interface, a USB interface, and a network interface, the power interface is electrically connected to the power supply assembly 7, and the power interface is used for introducing an external power supply to the power supply assembly 7; the USB interface and the network interface are respectively connected with the industrial control mainboard through signal lines, the USB interface is used for connecting external equipment, and the network interface is used for network data transmission communication. The front panel of the first shell 1 in the shell structure is provided with the display panel, an operator can check and control the detection process of the analyzer through the display panel, meanwhile, the interface assembly on the rear side face of the shell connects the analyzer with other external equipment, and detection data sharing and transmission can be achieved.
Referring to fig. 2 and 3, a power supply assembly 7 and a control assembly 3 are arranged inside the first housing 1, wherein the power supply assembly 7 and the control assembly 3 are both close to the display screen assembly and are fixedly connected to the bottom surface inside the first housing 1, and the power supply assembly 7 is used for storing current introduced by an external power supply and supplying power to other assemblies inside the first housing 1. The control assembly 3 comprises an industrial control main board, a D/A control board and a main board support, wherein the main board support is L-shaped, the upper horizontal side of the main board support is fixedly connected with the first shell 1, the upper vertical side of the main board support is provided with a plurality of strut fixing holes, and each strut fixing hole is connected with a fixing strut; the industrial control mainboard and the DA control panel are arranged on two sides of the vertical side of the mainboard support in a relatively parallel mode, the industrial control mainboard and the DA control panel are respectively connected and fixed on the mainboard support through a plurality of fixing support columns, and radiating fins are arranged on the side face of the industrial control mainboard. The industrial control main board in the control assembly 3 can control the detection process, carry out calculation and analysis processing, store the spectrum sheet and the detection data, and the D/A control board converts various instructions of the industrial control main board into electric signals and transmits the electric signals to the corresponding execution mechanism.
More specifically, as shown in fig. 6, a collecting lens 2012, a collecting camera 2011, an inner sleeve 2018, an annular light source 2013 and a camera fixing plate 2017 are arranged in the optical imaging assembly, wherein the collecting lens 2012 is mounted on the collecting camera 2011, the annular light source 2013 is located at an end of the collecting lens 2012, an annular light homogenizing plate 2014 is arranged below the annular light source 2013, and the light homogenizing plate 2014 and the annular light source 2013 are mounted on the collecting lens 2012 through the inner sleeve 2018; the camera fixing plate 2017 is of a T-shaped structure, the collection camera 2011 and the detection body 2015 are respectively connected with the camera fixing plate 2017, and the camera fixing plate 2017 keeps the relative positions of the collection lens 2012, the collection camera 2011, the inner sleeve 2018 and the annular light source 2013 fixed. Further, combine shown in fig. 7, the bottom surface of detecting body 2015 is equipped with drain channel 2015b of bar, drain channel 2015b is the stairstepping structure, wherein the superiors are equipped with transparent water conservancy diversion substrate 2015c in drain channel 2015b, and the lower floor is equipped with opaque background substrate 2015d, be equipped with the flow space that is used for the liquid medium to flow between water conservancy diversion substrate 2015c and the background substrate 2015 d. It should be noted that, in the optical imaging assembly in this embodiment, the annular light source 2013 is adopted to irradiate the abrasive particles in the detection body 2015, since the abrasive particles in the detection body 2015 are deposited on the opaque background substrate 2015d, when the light source irradiates onto the background substrate 2015d from above the abrasive particles, the reflected light optical imaging assembly is transmitted to the camera through the lens, the morphological characteristics of the surface of the abrasive particles can be clearly observed, the obtained information of the characteristics of the abrasive particles is more comprehensive, and the obtained detection result is more accurate.
The analyzer in the embodiment identifies the abrasive particles on the basis of a good abrasive particle spectrum, realizes a high-resolution and easily-readable abrasive particle spectrum by a series of work such as design of a liquid guide channel and a background substrate, application of an abrasive particle deposition and fixing method, application of an oil sample washing and background replacing method, design of a high-precision optical imaging system and the like, minimizes various possible interferences such as color, transparency, bubbles, surface properties of the abrasive particles, illumination conditions and the like of the oil sample, designs and applies an abrasive particle identification analysis algorithm based on self-learning, applies a dynamic threshold method to perform image processing, and effectively solves the influence of abrasive particle color difference, light reflection, shadow and the like on identification. The abrasive grain content and the large abrasive grain quantity of the unit volume of the oil sample can be analyzed and calculated at present. In the aspect of judging the wear state of the equipment, the basic evaluation of wear can be carried out by combining the content of the currently detected abrasive particles, the number of the large abrasive particles and the detection control standard, and the wear can also be comprehensively analyzed and judged by the content trend of the historical abrasive particles, the change rate trend of the content of the abrasive particles, the number trend of the large abrasive particles and the like.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.
Claims (9)
1. An off-line oil abrasive particle analyzer is characterized in that: the device comprises a first shell, a peristaltic pump, a pinch valve and a detection unit, wherein the peristaltic pump, the pinch valve and the detection unit are all positioned in the first shell, the detection unit is fixed on the inner surface of the first shell, and the detection unit is used for carrying out data acquisition on the characteristics of abrasive particles in oil; the peristaltic pump is positioned on the side of the detection unit and fixedly connected with the first shell, and is used for alternatively extruding and releasing fluid in the pipeline to pump the fluid; the pinch valve is positioned on the side of the peristaltic pump, the pinch valve is fixedly connected with the inner surface of the first shell, the pinch valve is used for controlling the on-off of the pipeline,
the pinch valve is provided with at least one cleaning fluid connecting port, at least one sample oil connecting port and at least one liquid outlet, wherein one end of a cleaning pipeline is connected to the cleaning fluid connecting port, and the other end of the cleaning pipeline is communicated with a storage container for storing cleaning fluid; one end of a sample oil pipeline is connected to the sample oil connection port, and the other end of the sample oil pipeline is communicated with a storage container for storing sample oil; the liquid outlet is communicated with one end of a liquid outlet pipeline, and the other end of the liquid outlet pipeline is communicated with the detection unit; the peristaltic pump is positioned on the liquid outlet pipeline and alternately extrudes and releases fluid in the liquid outlet pipeline to pump the fluid to enter the detection unit;
the detection unit comprises a packaging shell and a detection assembly, wherein the packaging shell comprises an upper cover plate, a lower cover plate and a second shell, the upper cover plate is connected to the top surface of the second bottom surface, the lower cover plate is connected to the bottom surface of the second shell, and the lower cover plate is fixedly connected with the first shell; the detection assembly is positioned inside the packaging shell, and the bottom of the detection assembly is fixedly connected with the lower cover plate; the detection assembly comprises a detection body, an optical imaging assembly and a magnetic assembly, wherein two oil holes and a liquid guide channel are formed in the detection body, the oil holes are respectively located at two ends of the liquid guide channel, and the oil holes are communicated with the liquid guide channel; one oil hole on the detection body is communicated with the liquid outlet pipeline, and the other oil hole is communicated with the waste liquid pipeline; the top surface of the detection body is provided with a detection hole, the optical imaging assembly is sleeved in the detection hole, and the bottom surface of the detection body is fixedly connected with the magnetic assembly.
2. The oil abrasive grain analyzer of claim 1, wherein: the first shell comprises a front panel, a rear panel, a bottom plate and an upper cover, wherein the bottom plate is horizontally arranged, the front panel is connected with one side edge of the bottom plate, and the front panel is obliquely arranged; the rear panel is connected with the opposite side edges of the bottom plate, and the rear panel is perpendicular to the bottom plate; the upper cover is of a rectangular frame structure with an opening formed in one side, and the upper cover is connected with the front panel, the bottom plate and the rear panel to form a closed shell structure with a hollow interior.
3. The oil abrasive grain analyzer of claim 2, wherein: the front panel of the first shell is an arc-shaped surface, and a display screen assembly used for man-machine interaction operation is arranged on the arc-shaped surface.
4. The oil abrasive grain analyzer of claim 3, wherein: the inside of first casing is equipped with power supply unit and control assembly, wherein power supply unit and control assembly all are close to the display screen subassembly, just power supply unit and the equal fixed connection of control assembly are in the inside bottom surface of first casing, power supply unit is used for saving the electric current that external power supply lets in and supplies power to other subassemblies inside the first casing, control assembly is arranged in controlling each part operation and the detection process of testing process.
5. The oil abrasive grain analyzer of claim 4, wherein: the control assembly comprises an industrial control main board, a D/A control board and a main board support, wherein the main board support is L-shaped, the upper horizontal side of the main board support is fixedly connected with the first shell, the upper vertical side of the main board support is provided with a plurality of strut fixing holes, and each strut fixing hole is connected with a fixing strut; the industrial control mainboard and the DA control panel are arranged on two sides of the vertical side of the mainboard support in a relatively parallel mode, the industrial control mainboard and the DA control panel are respectively connected and fixed on the mainboard support through a plurality of fixing support columns, and radiating fins are arranged on the side face of the industrial control mainboard.
6. The oil abrasive grain analyzer of claim 5, wherein: an electrical interface assembly is arranged on the rear side surface of the first shell, the electrical interface assembly comprises a power supply interface, a USB interface and a network interface, the power supply interface is electrically connected with the power supply assembly, and the power supply interface is used for introducing an external power supply to the power supply assembly; the USB interface and the network interface are respectively connected with the industrial control mainboard through signal lines, the USB interface is used for connecting external equipment, and the network interface is used for network data transmission communication.
7. The oil abrasive grain analyzer of claim 1, wherein: the side of first casing is equipped with the oil and connects the subassembly, be equipped with at least one washing liquid interface, at least one sample fluid interface and at least one waste liquid interface in the oil connects the subassembly, wherein the washing liquid interface keeps communicating with the washing pipeline, sample fluid interface keeps communicating with sample fluid pipeline, waste liquid interface keeps communicating with waste liquid pipeline.
8. The oil abrasive grain analyzer of claim 1, wherein: the optical imaging assembly is internally provided with a collecting lens, a collecting camera, an inner sleeve, an annular light source and a camera fixing plate, wherein the collecting lens is arranged on the collecting camera, the annular light source is positioned at the end part of the collecting lens, an annular light homogenizing plate is arranged below the annular light source, and the light homogenizing plate and the annular light source are arranged on the collecting lens through the inner sleeve; the camera fixing plate is of a T-shaped structure, the collecting camera and the detecting body are respectively connected with the camera fixing plate, and the camera fixing plate keeps the relative positions among the collecting lens, the collecting camera, the inner sleeve and the annular light source fixed.
9. The oil abrasive grain analyzer of claim 1, wherein: the bottom surface of the detection body is provided with a strip-shaped liquid guide channel which is of a stepped structure, wherein the uppermost layer of the liquid guide channel is provided with a transparent flow guide substrate, the lowermost layer of the liquid guide channel is provided with an opaque background substrate, and a flowing space for flowing of a liquid medium is arranged between the flow guide substrate and the background substrate.
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| CN116660107B (en) * | 2023-04-27 | 2024-04-19 | 北京格谱检测科技有限公司 | Online wear detection anti-bubble interference method and device |
| CN117848918A (en) * | 2024-01-10 | 2024-04-09 | 北京航力安太科技有限责任公司 | Oil abrasive particle analyzer and use method thereof |
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| CN1095541C (en) * | 1998-12-18 | 2002-12-04 | 南京航空航天大学 | Spectrometer for particles in oil sample |
| AU2004286360A1 (en) * | 2003-10-23 | 2005-05-12 | Terence Cole Martin | Improvement(s) related to particle monitors and method(s) therefor |
| CN102243200A (en) * | 2011-05-05 | 2011-11-16 | 南京航空航天大学 | On-line monitoring sensor of lubricating oil |
| CN205538565U (en) * | 2016-04-08 | 2016-08-31 | 北京象限空间科技有限公司 | Analyzing iron spectrograph |
| CN105865986A (en) * | 2016-05-12 | 2016-08-17 | 绍兴文理学院 | Oil monitoring equipment based on full-band variable-structure working condition adaptive filtering and molding |
| CN205786203U (en) * | 2016-05-12 | 2016-12-07 | 绍兴文理学院 | A kind of microgranule sensitivity detection equipment of full frequency band structure changes operating mode adaptive-filtering |
| CN106568691B (en) * | 2016-10-20 | 2019-03-05 | 江苏大学镇江流体工程装备技术研究院 | A kind of oil liquid abrasive grain on-Line Monitor Device |
| CN206656945U (en) * | 2017-04-26 | 2017-11-21 | 苏州达菲特过滤技术股份有限公司 | A kind of test system for the cleaner filter efficiency for simulating vehicle-mounted operating mode |
| CN206990396U (en) * | 2017-06-28 | 2018-02-09 | 北京格谱检测科技有限公司 | A kind of online wear detector |
| GB201806240D0 (en) * | 2018-04-17 | 2018-05-30 | Givaudan Sa | Method |
| CN210269513U (en) * | 2018-06-05 | 2020-04-07 | 北京格谱检测科技有限公司 | Reflective online visual ferrographic sensor |
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