CN106770301A - A kind of oil-gas two-phase flow body jet stability apparatus for evaluating - Google Patents
A kind of oil-gas two-phase flow body jet stability apparatus for evaluating Download PDFInfo
- Publication number
- CN106770301A CN106770301A CN201710168737.8A CN201710168737A CN106770301A CN 106770301 A CN106770301 A CN 106770301A CN 201710168737 A CN201710168737 A CN 201710168737A CN 106770301 A CN106770301 A CN 106770301A
- Authority
- CN
- China
- Prior art keywords
- paper tape
- oil
- adjustable
- oil spout
- atomizer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005514 two-phase flow Effects 0.000 title claims abstract description 24
- 238000001514 detection method Methods 0.000 claims abstract description 35
- 238000005461 lubrication Methods 0.000 claims abstract description 19
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 16
- 239000012530 fluid Substances 0.000 claims abstract description 14
- 238000012360 testing method Methods 0.000 claims abstract description 5
- 230000001105 regulatory effect Effects 0.000 claims description 26
- 230000001360 synchronised effect Effects 0.000 claims description 20
- 229920003229 poly(methyl methacrylate) Polymers 0.000 claims description 16
- 239000004926 polymethyl methacrylate Substances 0.000 claims description 16
- 238000009966 trimming Methods 0.000 claims description 14
- 241000239290 Araneae Species 0.000 claims description 11
- 238000002474 experimental method Methods 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 230000005540 biological transmission Effects 0.000 claims description 5
- 230000035515 penetration Effects 0.000 claims description 5
- 241000276425 Xiphophorus maculatus Species 0.000 claims description 3
- 239000004519 grease Substances 0.000 claims description 3
- 238000005457 optimization Methods 0.000 claims description 3
- 230000003252 repetitive effect Effects 0.000 claims description 3
- 230000000717 retained effect Effects 0.000 claims description 3
- 238000007405 data analysis Methods 0.000 claims 1
- 238000013480 data collection Methods 0.000 claims 1
- 238000005096 rolling process Methods 0.000 claims 1
- 238000004458 analytical method Methods 0.000 abstract description 5
- 238000013461 design Methods 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 238000005070 sampling Methods 0.000 abstract description 2
- 239000007921 spray Substances 0.000 abstract description 2
- 230000008676 import Effects 0.000 abstract 1
- 239000003921 oil Substances 0.000 description 71
- 230000001050 lubricating effect Effects 0.000 description 7
- 238000005259 measurement Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 239000000446 fuel Substances 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 239000010687 lubricating oil Substances 0.000 description 2
- 238000013097 stability assessment Methods 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 239000003607 modifier Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N2021/8405—Application to two-phase or mixed materials, e.g. gas dissolved in liquids
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Spray Control Apparatus (AREA)
Abstract
The invention belongs to oil-air lubrication assessment equipment manufacturing technology field, it is related to a kind of oil-gas two-phase flow body jet stability apparatus for evaluating, its agent structure is including front wheel group, rear roller group, DC speed-reducing, detection paper tape, paper tape guide plate, paper tape supporting plate, atomizer, ccd video camera, adjustable gripper, adjustable oil spout support etc., detection paper tape imports rear roller group by paper tape guide plate, is derived by front wheel group by paper tape supporting plate；Paper tape supporting plate top is provided with atomizer and ccd video camera, atomizer is clamped by adjustable gripper, clamper is fixed on adjustable oil spout support, clamper can adjust the height and oil spout angle of atomizer, atomizer sprays fluid to the detection paper tape of motion, host computer detects the width of paper tape fluid by sampling analysis, influence of the assessment oil-air lubrication parameter to oil spout fluctuation, its agent structure is simple, and design concept is ingenious, workable, low cost of manufacture, testing result is accurate, and applied environment is friendly, wide market.
Description
Technical field：
The invention belongs to oil-air lubrication assessment equipment manufacturing technology field, it is related to a kind of width data containing fluid to measure in real time
The oil-air lubrication apparatus for evaluating of analysis system, particularly a kind of oil-gas two-phase flow body jet stability apparatus for evaluating, its adjustable clamp
Holder can clamp Multiple Type nozzle, and being capable of accurate adjustment oil spout inclination angle.
Background technology：
Bearing class formation is common building block in engineering goods, and the steady normally continuous firing of bearing class formation is necessary
By the lubrication of lubricating oil, the lubricating system of bearing class formation can directly affect bearing performance and life-span, with industrial development
Continuous improvement to bearing rotation speed requirements, the lubricating system of bearing is also constantly improving.Gas-liquid two-phase fluid cooling and lubricating skill
Art (oil-air lubrication) is improving bearing performance as a kind of advanced Minimal Quantity Lubrication Technology, ensures bearing life, energy-conserving and environment-protective etc.
Aspect has huge advantage and potentiality, and the fields such as metallurgical and high-speed electric main shaft, existing oil gas profit have been widely used at present
It is much more sliding a certain amount of lubricating oil is periodically input into lubricating system using quantitative oil pump feed, oil gas lubricating system in theory
Fuel feeding is with fluctuation, if the oil spout fluctuation of oil gas lubricating system is excessive, it will cause in bearing oil film thickness at any time
Between be continually changing, bearing is produced vibration, and then cause bearing wear to aggravate, influence the rotating accuracy of main shaft, meeting when serious
Generation lubrication failure.The distributive value of oil gas lubricating system receives fuel feeding interval, charge oil pressure, pipeline structure and confession with the fluctuation of time
The influence of the factors such as oil burner nozzle, when the minimal ripple of the optimal distributive value for being controlled is reached, oil-air lubrication best results.At present
Using the easy device built temporarily more than the external existing oil spout Detection of Stability to oil-air lubrication oil supply system, its integrated level
It is low, very flexible, accuracy is not high therefore design prepares a kind of performance oil-gas two-phase flow body jet stability assessment dress higher
Put, the accuracy and reliability of oil-air lubrication measurement can be increased substantially.
The content of the invention：
It is an object of the invention to the shortcoming for overcoming prior art to exist, seek to design a kind of oil-gas two-phase flow body jet steady
Qualitative evaluation device, can accurately assess the oil spout fluctuation of oil-air lubrication oil supply system, and paper tape is detected by sampling analysis
Fluid width, influence of the assessment oil-air lubrication parameter to oil spout fluctuation.
To achieve these goals, the agent structure of oil-gas two-phase flow body jet stability apparatus for evaluating of the present invention
Including：Front wheel group, rear roller group, bearing spider, base plate, DC speed-reducing, synchronous pulley group, electric machine controller, detection
Paper tape, paper tape guide plate, paper tape supporting plate, atomizer, ccd video camera, adjustable gripper, adjustable oil spout support, can phase modifier branch
Frame, regulable ring-shaped light source and column；The column for supporting, the bottom of square structure are fixedly equipped with the corner of square floor respectively
The forward edge in plate upper surface is fixedly equipped with front wheel group, and edge is equipped with rear roller group, front wheel rearward for the upper surface of base plate
Group and rear roller group include the left and right two ends point of about two upper rollers placed and lower roller, front wheel group and rear roller group
Bearing spider is not equipped with, is used to be supported front wheel group and rear roller group tight with the contact of lower roller with adjustment upper roller
Density, the bottom surface of bearing spider is fixedly installed in plate upper surface, and the right-hand member of the lower roller of front wheel group passes through synchronous pulley group
It is connected with DC speed-reducing, DC speed-reducing is fixed on the lower surface front of base plate along the place that keeps right, and DC speed-reducing is used
To drive the lower roller turn of front wheel group, DC speed-reducing and the electricity being fixed on base plate lower surface by synchronous pulley group
Machine controller is electrically connected；Steering button and speed governing knob are equipped with the electric machine controller right plate, to precise control paper feeding
With the speed for moving back paper；The paper tape guide plate for guiding detection paper tape to enter rear roller group is equipped with rear side of close to rear roller group,
Paper tape guide plate includes two L-shaped platy structures of symmetrical placement, and paper tape guide plate can lead into detection paper tape
In gap in the middle of the upper roller of rear roller group and lower roller；Square smooth paper tape supporting plate is equipped with front side of the rear roller group,
The paper tape supporting plate is used to lift detection paper tape and rear roller group is derived into detection paper tape guide to front wheel group, and by front wheel
Derived in gap in the middle of the upper roller and lower roller of group；Adjustable gripper, adjustable clamping are equipped with front side of the rear roller group
Device is located at the top of paper tape supporting plate and is supported by adjustable oil spout support, and adjustable gripper front end is movable to be connected with oil spout
Mouth；The adjustable gripper can as needed clamp different size atomizer, and can adjust atomizer oil spout angle and
Oil spout is highly；The adjustable oil spout support include vertical rod, cross bar and contiguous block, vertical rod be connected with contiguous block one end penetration type and
Contiguous block can drive cross bar to be moved up and down along vertical rod, cross bar be connected with contiguous block other end penetration type and can pivoting,
To drive adjustable gripper to rotate；Ccd video camera is equipped with front side of atomizer, the ccd video camera is by being fixed on base plate
Adjustable camera support be supported and fix.
Adjustable gripper of the present invention includes that oil spout inclination angle trimming regulating nut, oil spout inclination angle fine tuning dial, oil spout are inclined
Angle coarse adjustment dial and subtended angle clamping nut, coarse adjustment dial in oil spout inclination angle fixes the right-hand member for being placed in cross bar, and has 2 freedom
Degree, is used to adjust and show oil spout height and the inclination angle of coarse adjustment adjustable gripper of atomizer；The subtended angle clamping nut is located at
The left side of adjustable gripper body, is used to adjust the tightness of adjustable gripper front end retained part, clamping different model
Atomizer, realizes freely changing for atomizer；The oil spout inclination angle trimming regulating nut is located at the top of adjustable gripper body, passes through
Rotation oil spout inclination angle trimming regulating nut can adjust the angle of adjustable gripper, further the oil spout angle of adjustment atomizer, oil spout
The top that fine tuning dial in inclination angle is located at adjustable gripper body is located rearward, and fine tuning dial in oil spout inclination angle is used to show that oil spout is inclined
The angle number of angle fine-tuning nut regulation.
The recessed grain of annular oil circuit is provided with the middle of the upper roller of front wheel group of the present invention, is used to ensure on detection paper tape
Test fluid does not receive the extruding of front wheel group and prevents from not polluting front wheel group.
Preloading spring structure is equipped with bearing spider of the present invention, is used to carry out front wheel group and rear roller group pre-
Tightly, adjustment detection paper tape is transmitted under suitable pressure.
DC speed-reducing of the present invention is equipped with the decelerator of supporting one, and output shaft rotating speed can be made to reach 10r/
Min, is used to ensure the rotation speed requirements needed for reaching experiment.
Synchronous pulley group of the present invention includes Timing Belt and the synchronous pulley being enclosed within Timing Belt, two for placing up and down
Individual synchronous pulley can be by 1:2 speed reducing ratio transmission, is used to for the output speed of the DC speed-reducing to reduce to required work
Rotating speed, and ensure the stability and reliability of rotating speed.
The agent structure of paper tape guide plate of the present invention includes the smooth L-shaped structure of two pieces of symmetrical placements
Acrylic glass plate, parallel position guiding groove and regulating bolt, are provided with two upper parallel position guiding grooves on the level board of acrylic glass plate,
Parallel position guiding groove is built-in with regulating bolt, is used to fix acrylic glass plate, after unscrewing regulating bolt, can move left and right Ya Ke
Power glass plate, symmetrically to adjust the gripping width of paper tape guide plate according to the width of detection paper tape, regulation passes through to twist after finishing
Tight regulating bolt realizes that paper tape guide plate is fixed.
The quantity of paper tape supporting plate of the present invention is two, and its agent structure includes porous support plate and pallet body；
The symmetrical formula of pallet body of acrylic glass material is distributed between front wheel group and rear roller group, acrylic glass material
Supporting plate be easy to mobile and can be used to that antirust is grease proofing, plane is tangential on front wheel group respectively for the rear and front end of the pallet body
With the top of the lower roller of rear roller group, the two ends lower section of each pallet body length direction is equipped with porous support plate, porous branch
The hole of fagging has been built-in with magnet, is being adjusted in the middle of two paper tape supporting plates after the size of crack according to oil spout situation, is used to pass through
Magnet magnetic force fixes the position of paper tape supporting plate, prevents it from sliding.
The lower end of ccd video camera of the present invention is fixedly equipped with regulable ring-shaped light source, is equipped with regulable ring-shaped light source bright
Degree adjusting knob, is used to adjust the brightness of regulable ring-shaped light source.
Adjustable camera support of the present invention is provided with 3 frees degree, can make to adjust the height of ccd video camera as needed
The angle of degree, outreach and front and rear rotation.
The bottom of column of the present invention is equipped with height-adjustable bolt thread structure, is used to adjust the smooth of base plate
Degree.
Concrete operation step of the present invention when realizing that jet stability is detected is as follows：
(1), speed and strong position are adjusted：First it is manually fed detection paper tape and rectifys position through paper tape guide plate, through rear roller group, warp
Paper tape supporting plate to front wheel group is crossed, then presses the steering button of electric machine controller to paper feeding position, DC speed-reducing starts to rotate,
Speed governing knob to suitable paper feeding speed is adjusted, synchronized belt wheel group drives front wheel group, and detection paper tape advances；Repetitive control institute
Steering button advance and retreat detection paper tape is stated, after manual fine-tuning rectifys position, electric machine controller is closed out of service；
(2) atomizer, is adjusted：Suitable inclination angle on cross bar to the coarse adjustment dial of adjustable oil spout support is first rotated, then is led to
Cross subtended angle clamping nut and clamp atomizer, required determination on adjustment oil spout inclination angle trimming regulating nut to oil spout inclination angle fine tuning dial
Oil spout angle；Atomizer adjusts adjustable oil spout support height to the height for detecting paper tape according to needed for experiment；
(3) CCD camera, is adjusted：Adjustable camera support to suitable height is first adjusted, adjust ccd video camera stretches out position
To the height alignd with atomizer；The camera lens of ccd video camera described in the image fine tuning of the host computer according to the ccd video camera,
The brightness regulation knob of regulable ring-shaped light source is adjusted again, and to appropriate brightness, the upper computer selecting LABVIEW carries out real-time oil
Liquid measurement data acquisition is analyzed.
(4), device startup optimization：The steering button of electric machine controller is pressed to paper feeding position, is adjusted to required speed, it is even
Speed transmission detection paper tape, starts oil-air lubrication oil supply system, makes atomizer oil spout, while ccd video camera sample detecting paper tape
Fluid width, the image information that ccd video camera will be collected is transmitted to LABVIEW and is analyzed treatment, assessment oil-air lubrication ginseng
Several influences to oil spout fluctuation, so as to realize the assessment of oil gas oil-gas two-phase flow body jet stability.
The present invention compared with prior art, is configured with multivariant adjustable support and adjustable gripper, in order to clamp
Multiple Type nozzle, and the various required oil spout inclination angles of accurate adjustment, the real-time fluid being integrated with LABVIEW as host computer are wide
Degree measurement analysis of data collected system, improves the experimental precision and reliability of oil-gas two-phase flow body jet stability assessment system
Property, simply, design concept is ingenious for its agent structure, installs and uses safe ready, and test result is accurate, preparation process is simple, fits
Suitable large-scale production, applied environment is friendly, wide market.
Brief description of the drawings：
Fig. 1 is agent structure principle schematic of the invention.
Fig. 2 is the agent structure principle schematic of adjustable gripper of the present invention.
Fig. 3 is the agent structure principle schematic of paper tape guide plate of the present invention.
Fig. 4 is the agent structure principle schematic of paper tape supporting plate of the present invention.
Specific embodiment：
The present invention is described in further detail below in conjunction with the accompanying drawings and by embodiment.
Embodiment 1：
The agent structure of the oil-gas two-phase flow body jet stability apparatus for evaluating that the present embodiment is related to includes：Front wheel group 1,
Rear roller group 2, bearing spider 3, base plate 4, DC speed-reducing 5, synchronous pulley group 6, electric machine controller 7, detection paper tape 8, paper
Band guide plate 9, paper tape supporting plate 10, atomizer 11, ccd video camera 12, adjustable gripper 13, adjustable oil spout support 14, can phase modulation
Machine support 16, regulable ring-shaped light source 17 and column 18；The column for supporting is fixedly equipped with the corner of square floor 4 respectively
18, the forward edge in the upper surface of base plate 4 of square structure is fixedly equipped with front wheel group 1, the upper surface edge disposal rearward of base plate 4
There is rear roller group 2, front wheel group 1 and rear roller group 2 include about two upper rollers placed and lower roller, front wheel group 1
Left and right two ends with rear roller group 2 are equipped with bearing spider 3 respectively, are used to front wheel group 1 and rear roller group 2 are supported and adjusted
The tight ness rating of whole upper roller and the contact of lower roller, the bottom surface of bearing spider is fixedly installed in the upper surface of base plate 4, front wheel group 1
The right-hand member of lower roller be connected with DC speed-reducing 5 by synchronous pulley group 6, DC speed-reducing 5 is fixed under base plate 4
Along the place that keeps right, DC speed-reducing 5 is used to be driven by synchronous pulley group 6 the lower roller turn of front wheel group 1, directly in surface front
Stream reducing motor 5 is electrically connected with the electric machine controller 7 being fixed on the lower surface of base plate 4；Put on the right plate of the electric machine controller 7
There are steering button 34 and speed governing knob 35, to precise control paper feeding and move back the speed of paper；Rear side close to rear roller group 2 is equipped with
It is used to the paper tape guide plate 9 for guiding detection paper tape 8 to enter rear roller group 2, paper tape guide plate 9 includes two of symmetrical placement
L-shaped platy structure, paper tape guide plate 9 can be led into the middle of the upper roller and lower roller of rear roller group 2 detection paper tape 8
In gap；The front side of the rear roller group 2 is equipped with square smooth paper tape supporting plate 10, and the paper tape supporting plate 10 is used to lift detection paper
Band 8 is simultaneously derived during detection paper tape 8 guides upper roller and lower roller to front wheel group 1, and by front wheel group 1 rear roller group 2
Between gap in derive；The front side of the rear roller group 2 is equipped with adjustable gripper 13, and adjustable gripper 13 is located at paper tape supporting plate 10
Top and be supported by adjustable oil spout support 14, the front end of adjustable gripper 13 is movable to be connected with atomizer 11；It is described
Adjustable gripper 13 can as needed clamp different size atomizer 11, and can adjust oil spout angle and the spray of atomizer 11
Oily height；The adjustable oil spout support 14 includes vertical rod 23, cross bar 24 and contiguous block 25, and vertical rod 23 runs through with the one end of contiguous block 25
Formula is connected and contiguous block 25 can drive cross bar 24 to be moved up and down along vertical rod 23, cross bar 24 and the other end penetration type of contiguous block 25
Connect and can pivoting, to drive adjustable gripper 13 to rotate；The front side of atomizer 11 is equipped with ccd video camera 12, described
Ccd video camera 12 is supported and is fixed by the adjustable camera support 16 being fixed on base plate 4.
Adjustable gripper 13 described in the present embodiment includes oil spout inclination angle trimming regulating nut 19, oil spout inclination angle fine tuning dial
20th, oil spout inclination angle coarse adjustment dial 21 and subtended angle clamping nut 22, oil spout inclination angle coarse adjustment dial 21 are fixed and are placed in cross bar 24
Right-hand member, and have 2 frees degree, it is used to adjust and show oil spout height and the inclination angle of coarse adjustment adjustable gripper 13 of atomizer 11；
The subtended angle clamping nut 22 is located at the left side of the body of adjustable gripper 13, is used to adjust the front end retained part of adjustable gripper 13
Tightness, clamp different model atomizer 11, realize freely changing for atomizer；The oil spout inclination angle trimming regulating nut 19
Positioned at the top of the body of adjustable gripper 13, the angle of adjustable gripper 13 can be adjusted by rotating oil spout inclination angle trimming regulating nut 19
Degree, further adjusts the oil spout angle of atomizer 11, and oil spout inclination angle fine tuning dial 20 is located at the upper of the body of adjustable gripper 13
Portion locates rearward, and oil spout inclination angle fine tuning dial 20 is used to show the angle number of the regulation of oil spout inclination angle trimming regulating nut 19.
Annular oil circuit recessed poor 29 is provided with the middle of the upper roller of the front wheel group 1 described in the present embodiment, is used to ensure to detect paper
With the test fluid on 8 extruding of front wheel group 1 is not received and prevents from not polluting front wheel group 1.
Preloading spring structure 30 is equipped with bearing spider 3 described in the present embodiment, is used to front wheel group 1 and rear roller group
2 carry out pretension, and adjustment detection paper tape 8 is transmitted under suitable pressure.
DC speed-reducing 5 described in the present embodiment is equipped with the decelerator of supporting one, can reach output shaft rotating speed
10r/min, is used to ensure the rotation speed requirements needed for reaching experiment.
Synchronous pulley group 6 described in the present embodiment includes Timing Belt and the synchronous pulley being enclosed within Timing Belt, places up and down
Two synchronous pulleys can be by 2:1 speed reducing ratio transmission, needed for being used to reduce to the output speed of the DC speed-reducing 5
Working speed, and ensure the stability and reliability of rotating speed.
The agent structure of the paper tape guide plate 9 described in the present embodiment includes two pieces of smooth L-shaped knots of symmetrical placement
The acrylic glass plate 26 of structure, parallel position guiding groove 27 and regulating bolt 28, on the level board of the acrylic glass plate 26 of L-shaped structure
Two upper parallel position guiding grooves 27 are provided with, parallel position guiding groove 27 is built-in with regulating bolt 28, is used to fix acrylic glass plate 26, twists
After loose regulating bolt 28, acrylic glass plate 26 can be moved left and right, symmetrically to adjust paper tape according to the width of detection paper tape 8
The gripping width of guide plate 9, regulation realizes that paper tape guide plate 9 is fixed after finishing by tightening regulating bolt 28.
The quantity of the paper tape supporting plate 10 described in the present embodiment is two, and its agent structure includes porous support plate 31 and supporting plate
Main body 36；The symmetrical formula of pallet body 36 of acrylic glass material is distributed between front wheel group 1 and rear roller group 2, sub-
The supporting plate 36 of gram force glass material can be easy to mobile and can be grease proofing to antirust, and the rear and front end of the pallet body 36 is divided
Other plane is tangential on the top of the lower roller of front wheel group 1 and rear roller group 2, under the two ends of each length direction of pallet body 36
Side is equipped with porous support plate 31, and the hole of porous support plate 31 has been built-in with magnet 32, and two paper tapes are being adjusted according to oil spout situation
After the size of the middle crack of supporting plate 10, it is used to be fixed by the magnetic force of magnet 32 position of paper tape supporting plate 10, prevents it from sliding.
The lower end of the ccd video camera 12 described in the present embodiment is fixedly equipped with regulable ring-shaped light source 17, regulable ring-shaped light source 17
On be equipped with brightness regulation knob, be used to adjust the brightness of regulable ring-shaped light source 17.
Adjustable camera support 16 described in the present embodiment is provided with 3 frees degree, can make to adjust ccd video camera as needed
The angle of 12 height, outreach and front and rear rotation.
The bottom of the column 18 described in the present embodiment is equipped with height-adjustable bolt thread structure 33, is used to adjust base plate
4 flatness.
Concrete operation step of the present embodiment when realizing that jet stability is detected is as follows：
(1), speed and strong position are adjusted：First it is manually fed detection paper tape 8 and rectifys position through paper tape guide plate 9, through rear roller group
2, by paper tape supporting plate 10 to front wheel group 1, then the steering button 34 of electric machine controller 7 is pressed to paper feeding position, direct current slows down electric
Machine 5 starts to rotate, and adjustment speed governing knob 35 to suitable paper feeding speed, synchronized belt wheel group 6 drives front wheel group 1, detects paper
Band 8 advances；The advance and retreat detection paper tape 8 of button 34 is turned to described in repetitive control, after manual fine-tuning rectifys position, electric machine controller 7 is closed
It is out of service；
(2) atomizer, is adjusted：First rotate and suitably incline on cross bar 24 to the coarse adjustment dial 21 of adjustable oil spout support 14
Angle, then the clamping atomizer 11 of nut 22, adjustment oil spout inclination angle trimming regulating nut 19 to oil spout inclination angle fine tuning scale are clamped by subtended angle
The oil spout angle of required determination on disk 20；Atomizer 11 adjusts adjustable oil spout branch to the height of detection paper tape 8 according to needed for experiment
The height of frame 14；
(3) CCD camera, is adjusted：Adjustable camera support 16 to suitable height is first adjusted, stretching for ccd video camera 12 is adjusted
Go out position to the height alignd with atomizer 11；Ccd video camera 12 described in the image fine tuning of the host computer according to the ccd video camera
Camera lens, then adjust the brightness regulation knob of regulable ring-shaped light source 17, to appropriate brightness, the upper computer selecting LABVIEW comes
Carry out real-time fluid measurement data acquisition analysis.
(4), device startup optimization：The steering button 34 of electric machine controller 7 is pressed to paper feeding position, is adjusted to required speed
Degree, at the uniform velocity transmission detection paper tape 8, start oil-air lubrication oil supply system, make the oil spout of atomizer 11, while ccd video camera 12 is sampled
The fluid width of paper tape 8 is detected, the image information that ccd video camera will be collected is transmitted to LABVIEW and is analyzed treatment, assessed
Influence of the oil-air lubrication parameter to oil spout fluctuation, so as to realize the assessment of oil gas oil-gas two-phase flow body jet stability.
Claims (12)
1. a kind of oil-gas two-phase flow body jet stability apparatus for evaluating, it is characterised in that its agent structure includes：Front wheel group, after
Roller group, bearing spider, base plate, DC speed-reducing, synchronous pulley group, electric machine controller, detection paper tape, paper tape guide plate,
Paper tape supporting plate, atomizer, ccd video camera, adjustable gripper, adjustable oil spout support, adjustable camera support, regulable ring-shaped light source and
Column；It is fixedly equipped with the column for supporting at the corner of square floor respectively, the plate upper surface of square structure edge on the front
Place is fixedly equipped with front wheel group, and edge is equipped with rear roller group rearward for the upper surface of base plate, and front wheel group and rear roller group are wrapped
Include about two upper rollers placed and lower roller, the left and right two ends of front wheel group and rear roller group are equipped with bearing spider respectively,
It is used to the tight ness rating for being supported to front wheel group and rear roller group with adjusting upper roller and the contact of lower roller, bearing spider
Bottom surface is fixedly installed in plate upper surface, and the right-hand member of the lower roller of front wheel group is connected by synchronous pulley group with DC speed-reducing
Connect, DC speed-reducing is fixed on the lower surface front of base plate along the place that keeps right, and DC speed-reducing is used to by synchronous pulley group
The lower roller turn of front wheel group, DC speed-reducing is driven to be electrically connected with the electric machine controller being fixed on base plate lower surface；
Steering button and speed governing knob are equipped with the electric machine controller right plate, to precise control paper feeding and the speed of paper is moved back；Tightly
The paper tape guide plate for guiding detection paper tape to enter rear roller group is equipped with rear side of adjacent rear roller group, paper tape guide plate includes a left side
Right two symmetrically placed L-shaped platy structures, paper tape guide plate can will detect that paper tape leads into the upper roller of rear roller group
In the gap in the middle of lower roller；Square smooth paper tape supporting plate is equipped with front side of the rear roller group, the paper tape supporting plate is used to
Lift detection paper tape and rear roller group is derived into detection paper tape and guide to front wheel group, and by the upper roller and lower roll of front wheel group
Derived in gap in the middle of sub；Adjustable gripper is equipped with front side of the rear roller group, adjustable gripper is located at paper tape supporting plate
Top is simultaneously supported by adjustable oil spout support, and adjustable gripper front end is movable to be connected with atomizer；The adjustable clamping
Device can as needed clamp different size atomizer, and can adjust atomizer oil spout angle and oil spout highly；It is described can
Adjusting oil spout support includes vertical rod, cross bar and contiguous block, and vertical rod is connected with contiguous block one end penetration type and contiguous block can drive
Cross bar is moved up and down along vertical rod, cross bar be connected with contiguous block other end penetration type and can pivoting, to drive adjustable clamping
Device is rotated；It is equipped with ccd video camera on front side of atomizer, the ccd video camera is by the adjustable camera support that is fixed on base plate
It is supported and fixes.
2. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described is adjustable
Clamper includes oil spout inclination angle trimming regulating nut, oil spout inclination angle fine tuning dial, oil spout inclination angle coarse adjustment dial and subtended angle clamping spiral shell
Mother, oil spout inclination angle coarse adjustment dial fixes the right-hand member for being placed in cross bar, and has 2 frees degree, is used to adjust and show atomizer
The inclination angle of oil spout height and coarse adjustment adjustable gripper；The subtended angle clamping nut is located at the left side of adjustable gripper body, is used to
The tightness of regulation adjustable gripper front end retained part, clamps the atomizer of different model, realizes the freedom of atomizer more
Change；The oil spout inclination angle trimming regulating nut is located at the top of adjustable gripper body, can by rotating oil spout inclination angle trimming regulating nut
The angle of adjustable gripper is adjusted, further the oil spout angle of adjustment atomizer, fine tuning dial in oil spout inclination angle is located at adjustable clamp
The top of holder body is located rearward, and fine tuning dial in oil spout inclination angle is used to show the angle number of oil spout inclination angle trimming regulating nut regulation.
3. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described preceding rolling
The recessed grain of annular oil circuit is provided with the middle of the upper roller of wheel group, is used to ensure to detect that the test fluid on paper tape is not squeezed by front wheel group
Press and prevent not polluting front wheel group.
4. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described bearing
Preloading spring structure is equipped with bearing, is used to carry out front wheel group and rear roller group pretension, adjustment detection paper tape is suitable
Transmitted under pressure.
5. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described direct current
Reducing motor is equipped with the decelerator of supporting one, and output shaft rotating speed can be made to reach 10r/min, needed for being used to ensure to reach experiment
Rotation speed requirements.
6. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described synchronization
Belt wheel group includes Timing Belt and the synchronous pulley being enclosed within Timing Belt, and two synchronous pulleys placed up and down can be by 1:2 subtract
Speed is used to for the output speed of the DC speed-reducing to reduce to required working speed, and ensure the stability of rotating speed than transmission
And reliability.
7. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described paper tape
The agent structure of guide plate includes two pieces of acrylic glass plate, parallel position guiding grooves of the smooth L-shaped structure of symmetrical placement
And regulating bolt, two upper parallel position guiding grooves are provided with the level board of the acrylic glass plate of L-shaped structure, parallel position guiding groove is built-in
There is regulating bolt, be used to fix acrylic glass plate, after unscrewing regulating bolt, acrylic glass plate can be moved left and right, be used to
Width according to detection paper tape symmetrically adjusts the gripping width of paper tape guide plate, and regulation is realized after finishing by tightening regulating bolt
Paper tape guide plate is fixed.
8. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described paper tape
The quantity of supporting plate is two, and its agent structure includes porous support plate and pallet body；The pallet body of acrylic glass material
Symmetrical formula is distributed between front wheel group and rear roller group, and the supporting plate of acrylic glass material can be easy to mobile and can
Grease proofing to antirust, plane is tangential on the lower roller of front wheel group and rear roller group respectively for the rear and front end of the pallet body
Top, the two ends lower section of each pallet body length direction is equipped with porous support plate, and the hole of porous support plate has been built-in with magnet,
Adjusted in the middle of two paper tape supporting plates after the size of crack according to oil spout situation, be used to fix paper tape supporting plate by magnet magnetic force
Position, prevent it from sliding.
9. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described CCD takes the photograph
The lower end of camera is fixedly equipped with regulable ring-shaped light source, and brightness regulation knob is equipped with regulable ring-shaped light source, is used to adjust adjustable loop
The brightness of shape light source.
10. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described is adjustable
Camera support is provided with 3 frees degree, can make to adjust the height of ccd video camera, outreach and front and rear rotation as needed
Angle.
11. oil-gas two-phase flow body jet stability apparatus for evaluating according to claim 1, it is characterised in that described column
Bottom be equipped with height-adjustable bolt thread structure, be used to adjust the flatness of base plate.
The 12. oil-gas two-phase flow body jet stability apparatus for evaluating according to any claim in claim 1-11, its
Feature specifically carries out using operation in accordance with the following steps at it：
(1), speed and strong position are adjusted：First it is manually fed detection paper tape and rectifys position through paper tape guide plate, through rear roller group, by paper
Band supporting plate is to front wheel group, then presses the steering button of electric machine controller to paper feeding position, and DC speed-reducing starts to rotate, adjustment
To suitable paper feeding speed, synchronized belt wheel group drives front wheel group to speed governing knob, and detection paper tape advances；Turn described in repetitive control
Retreated to button after detecting that paper tape, manual fine-tuning rectify position, close electric machine controller out of service；
(2) atomizer, is adjusted：Suitable inclination angle on cross bar to the coarse adjustment dial of adjustable oil spout support is first rotated, then by opening
Angle clamping nut clamps atomizer, the oil spout of required determination on adjustment oil spout inclination angle trimming regulating nut to oil spout inclination angle fine tuning dial
Angle；Atomizer adjusts adjustable oil spout support height to the height for detecting paper tape according to needed for experiment；
(3) CCD camera, is adjusted：First adjust adjustable camera support to suitable height, adjustment ccd video camera stretch out position to
The height of atomizer alignment；The camera lens of ccd video camera described in the image fine tuning of the host computer according to the ccd video camera, then adjust
The brightness regulation knob of whole regulable ring-shaped light source, to appropriate brightness, the upper computer selecting LABVIEW carries out real-time fluid survey
Amount data collection and analysis.
(4), device startup optimization：The steering button of electric machine controller is pressed to paper feeding position, is adjusted to required speed, at the uniform velocity passed
Paper tape is surveyed in censorship, starts oil-air lubrication oil supply system, makes atomizer oil spout, while the fluid of ccd video camera sample detecting paper tape
Width, the image information that ccd video camera will be collected is transmitted to LABVIEW and is analyzed treatment, assesses oil-air lubrication parameter pair
The influence of oil spout fluctuation, so as to realize the assessment of oil gas oil-gas two-phase flow body jet stability.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168737.8A CN106770301A (en) | 2017-03-21 | 2017-03-21 | A kind of oil-gas two-phase flow body jet stability apparatus for evaluating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710168737.8A CN106770301A (en) | 2017-03-21 | 2017-03-21 | A kind of oil-gas two-phase flow body jet stability apparatus for evaluating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106770301A true CN106770301A (en) | 2017-05-31 |
Family
ID=58967674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710168737.8A Pending CN106770301A (en) | 2017-03-21 | 2017-03-21 | A kind of oil-gas two-phase flow body jet stability apparatus for evaluating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106770301A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418689A (en) * | 2021-06-30 | 2021-09-21 | 中国航发贵州黎阳航空动力有限公司 | Measuring tool for detecting injection direction of fuel spray rod |
Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191517663A (en) * | 1915-12-17 | 1916-12-18 | David Endacott | Improvements in and relating to Dividing Engines. |
| GB848273A (en) * | 1958-04-09 | 1960-09-14 | British Oxygen Co Ltd | Improvements in flame cutting heads for trimming the edges of metal plates |
| GB993346A (en) * | 1963-10-11 | 1965-05-26 | Edgar Rice | Improvements in or relating to a high reduction dial assembly |
| CN2041841U (en) * | 1988-08-30 | 1989-07-26 | 卢子鹏 | Half-wave arcing timer |
| JPH02255475A (en) * | 1989-03-28 | 1990-10-16 | Topcon Corp | Automatic original feeder |
| US5904805A (en) * | 1996-06-13 | 1999-05-18 | Marchetti; Augusto | Gummed paper taping unit with improved guidance of the paper in the dampening zone |
| FR2798746A1 (en) * | 1999-04-15 | 2001-03-23 | Cewe Color Ag & Co Ohg | DEVICE FOR WINDING AND UNWINDING ROLLS OF PHOTO PAPER STRIPS |
| US20060006295A1 (en) * | 2004-07-08 | 2006-01-12 | Robert Gainer | Position adjuster for a device |
| CN2770018Y (en) * | 2005-03-03 | 2006-04-05 | 王金华 | Multifunction falling action experiment device |
| CN101033017A (en) * | 2006-03-10 | 2007-09-12 | 台达电子电源(东莞)有限公司 | Pedal-type brand-paper tape separating device |
| CN201694415U (en) * | 2010-05-31 | 2011-01-05 | 中国振华集团云科电子有限公司 | Paster type resistor carrier tape transport limiting device |
| CN201838072U (en) * | 2010-11-02 | 2011-05-18 | 深圳市罗孚特科技有限公司 | Automatic paper money collecting structure |
| CN201990295U (en) * | 2011-02-18 | 2011-09-28 | 三星高新电机（天津）有限公司 | Guiding device for paper tape of SMD resistor |
| CN202394054U (en) * | 2011-12-07 | 2012-08-22 | 丰江杰 | Direct-current ticker-tape timer |
| CN202540803U (en) * | 2012-02-23 | 2012-11-21 | 杭州彼特环保包装有限公司 | Separation conveying device of paper hand bag production line |
| CN103129017A (en) * | 2013-02-06 | 2013-06-05 | 北京印刷学院 | Transverse band sticking device for band punch of corrugated case |
| CN103528908A (en) * | 2013-10-31 | 2014-01-22 | 山东开泰抛丸机械有限公司 | Testing device for detecting impact friction abrasion of workpiece |
| CN203658564U (en) * | 2013-12-11 | 2014-06-18 | 广州赛宝计量检测中心服务有限公司 | Sample adjustment frame for measurement of ferromagnetic resonance parameters |
| CN203973042U (en) * | 2014-05-30 | 2014-12-03 | 浙江海洋学院 | A kind of spray welding unit |
| CN104548290A (en) * | 2014-12-17 | 2015-04-29 | 广西大学 | Aerosol inhalation therapy spray nozzle fixing device |
| CN204990889U (en) * | 2015-08-18 | 2016-01-20 | 周润泽 | Novel ticker -timer |
| CN105328976A (en) * | 2015-11-13 | 2016-02-17 | 董利锋 | Foot pad stripping machine |
| CN205451613U (en) * | 2016-03-04 | 2016-08-10 | 侯胤男 | Student majored in science of high school uses temperature sensing ticker -timer |
| WO2017000538A1 (en) * | 2015-07-02 | 2017-01-05 | 贺石生 | Arc-shaped precise positioning device capable of being assembled and disassembled |
| CN106400593A (en) * | 2016-06-24 | 2017-02-15 | 广西金桂浆纸业有限公司 | A starch spraying device used for a laboratory |
-
2017
- 2017-03-21 CN CN201710168737.8A patent/CN106770301A/en active Pending
Patent Citations (25)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB191517663A (en) * | 1915-12-17 | 1916-12-18 | David Endacott | Improvements in and relating to Dividing Engines. |
| GB848273A (en) * | 1958-04-09 | 1960-09-14 | British Oxygen Co Ltd | Improvements in flame cutting heads for trimming the edges of metal plates |
| GB993346A (en) * | 1963-10-11 | 1965-05-26 | Edgar Rice | Improvements in or relating to a high reduction dial assembly |
| CN2041841U (en) * | 1988-08-30 | 1989-07-26 | 卢子鹏 | Half-wave arcing timer |
| JPH02255475A (en) * | 1989-03-28 | 1990-10-16 | Topcon Corp | Automatic original feeder |
| US5904805A (en) * | 1996-06-13 | 1999-05-18 | Marchetti; Augusto | Gummed paper taping unit with improved guidance of the paper in the dampening zone |
| FR2798746A1 (en) * | 1999-04-15 | 2001-03-23 | Cewe Color Ag & Co Ohg | DEVICE FOR WINDING AND UNWINDING ROLLS OF PHOTO PAPER STRIPS |
| US20060006295A1 (en) * | 2004-07-08 | 2006-01-12 | Robert Gainer | Position adjuster for a device |
| CN2770018Y (en) * | 2005-03-03 | 2006-04-05 | 王金华 | Multifunction falling action experiment device |
| CN101033017A (en) * | 2006-03-10 | 2007-09-12 | 台达电子电源(东莞)有限公司 | Pedal-type brand-paper tape separating device |
| CN201694415U (en) * | 2010-05-31 | 2011-01-05 | 中国振华集团云科电子有限公司 | Paster type resistor carrier tape transport limiting device |
| CN201838072U (en) * | 2010-11-02 | 2011-05-18 | 深圳市罗孚特科技有限公司 | Automatic paper money collecting structure |
| CN201990295U (en) * | 2011-02-18 | 2011-09-28 | 三星高新电机（天津）有限公司 | Guiding device for paper tape of SMD resistor |
| CN202394054U (en) * | 2011-12-07 | 2012-08-22 | 丰江杰 | Direct-current ticker-tape timer |
| CN202540803U (en) * | 2012-02-23 | 2012-11-21 | 杭州彼特环保包装有限公司 | Separation conveying device of paper hand bag production line |
| CN103129017A (en) * | 2013-02-06 | 2013-06-05 | 北京印刷学院 | Transverse band sticking device for band punch of corrugated case |
| CN103528908A (en) * | 2013-10-31 | 2014-01-22 | 山东开泰抛丸机械有限公司 | Testing device for detecting impact friction abrasion of workpiece |
| CN203658564U (en) * | 2013-12-11 | 2014-06-18 | 广州赛宝计量检测中心服务有限公司 | Sample adjustment frame for measurement of ferromagnetic resonance parameters |
| CN203973042U (en) * | 2014-05-30 | 2014-12-03 | 浙江海洋学院 | A kind of spray welding unit |
| CN104548290A (en) * | 2014-12-17 | 2015-04-29 | 广西大学 | Aerosol inhalation therapy spray nozzle fixing device |
| WO2017000538A1 (en) * | 2015-07-02 | 2017-01-05 | 贺石生 | Arc-shaped precise positioning device capable of being assembled and disassembled |
| CN204990889U (en) * | 2015-08-18 | 2016-01-20 | 周润泽 | Novel ticker -timer |
| CN105328976A (en) * | 2015-11-13 | 2016-02-17 | 董利锋 | Foot pad stripping machine |
| CN205451613U (en) * | 2016-03-04 | 2016-08-10 | 侯胤男 | Student majored in science of high school uses temperature sensing ticker -timer |
| CN106400593A (en) * | 2016-06-24 | 2017-02-15 | 广西金桂浆纸业有限公司 | A starch spraying device used for a laboratory |
Non-Patent Citations (2)
| Title |
|---|
| JAE-HEUM MOON: "《Lubrication Characteristics Analysis of an Air-oil Lubrication System using an Experimental Design Method》" * |
| 刘牧原: "《高速滚动轴承油气润滑实验研究》" * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113418689A (en) * | 2021-06-30 | 2021-09-21 | 中国航发贵州黎阳航空动力有限公司 | Measuring tool for detecting injection direction of fuel spray rod |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102901456B (en) | Pick-up unit and detect the method for the external diameter of circular shaft, jitter values, out of roundness | |
| CN104226745B (en) | A kind of Novel elevator guide rail automatic alignment device | |
| CN102901450B (en) | Measuring device and shaft body detection equipment | |
| CN201361603Y (en) | Pole piece coating machine capable of automatically controlling coating clearance | |
| CN1967979A (en) | Alignment device of out shaft of rotor axis of electric engine | |
| CN105382421A (en) | Full-automatic integrated SMT template cutting and detecting device | |
| CN106770301A (en) | A kind of oil-gas two-phase flow body jet stability apparatus for evaluating | |
| CN110181392A (en) | A kind of bar automatic feed mechanism | |
| CN206523385U (en) | A kind of electronic hardometer | |
| CN206546334U (en) | A kind of oil-gas two-phase flow body jet stability apparatus for evaluating | |
| CN106180536B (en) | A kind of high-efficiency high-precision hoisting chain automatic measurement machine and its operating method | |
| CN210305047U (en) | Hot-rolled strip steel flatness detection device | |
| CN111604838A (en) | Auxiliary clamping device for instruments and meters and application thereof | |
| CN209372009U (en) | A kind of strip surveys wide device and surveys wide system | |
| CN209705091U (en) | A kind of guide rail structure of friction-driven | |
| CN205817007U (en) | A kind of tensioner of small-sized electrode wire of wire-cutting machine tools | |
| CN109655029A (en) | A kind of thick bamboo tube wall thickness measuring device | |
| CN206732327U (en) | The semi-automatic cutting tool of belt conveyer roller | |
| CN205031211U (en) | Medical endoscope adjusting fixtures device | |
| CN104057043A (en) | Amorphous ribbon online production device | |
| CN209706726U (en) | A kind of concentricity measuring instrument | |
| CN210128699U (en) | Film material thickness measuring device | |
| CN208299939U (en) | A kind of dual camera module detecting device | |
| CN209927830U (en) | Food detects adds device with auxiliary reagent | |
| CN201607215U (en) | Non-contact fretsaw guide wheel groove shape detector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |