CN106885863A - A kind of oil sample chromatography quantitative sampling device and application method - Google Patents
A kind of oil sample chromatography quantitative sampling device and application method Download PDFInfo
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- CN106885863A CN106885863A CN201710065151.9A CN201710065151A CN106885863A CN 106885863 A CN106885863 A CN 106885863A CN 201710065151 A CN201710065151 A CN 201710065151A CN 106885863 A CN106885863 A CN 106885863A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
- G01N30/02—Column chromatography
- G01N30/04—Preparation or injection of sample to be analysed
- G01N30/16—Injection
- G01N30/18—Injection using a septum or microsyringe
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Abstract
The present invention relates to a kind of oil sample chromatography quantitative sampling device, it is included in the support bar on support, movable block on support bar and push component, longitudinal driving device is provided with movable block, the mounting seat of mounting of syringe and the clamping device for playing fixed syringe, longitudinal driving device includes longitudinal motor and its driving gear set, mounting seat includes U-shaped opening and installation cavity, clamping device includes fixed seat, clamping motor, clamping leading screw, clamping slider, connecting rod and gripper jaw, pushing component includes the lower piezoelectric machine being connected with movable block, push leading screw, the axis of guide, driving gear set, and push sliding block.Additionally provide application method of the invention simultaneously.Safe ready of the present invention, sample introduction is accurate, effectively solves sample waste, experimental data deviation and the low problem of efficiency, while the quantitative sampling of oil sample is applied also for, it is widely applicable, it is easy to promote.
Description
Technical field
The present invention relates to a kind of oil sample chromatography quantitative sampling device and application method.
Background technology
Power transformer during day-to-day operation, by highfield, electromagnetic environment and various external environment conditions made by insulating oil
With can produce the gas that is dissolved in insulating oil, dielectric oil chromatographic analysis method is a kind of to carry out state estimation to oil-filled equipment and examine
Disconnected technology.It provides effective insulation control to electrical equipment, it is ensured that the safe and stable operation of electrical equipment.Specifically use gas phase
The constituent content of chromatography determination Dissolved Gases in Insulating Oil, measurement result judges that operating oil-filled electric power sets for power supply enterprise
The failures such as standby overheat, electric discharge with the presence or absence of latency, to ensure that power grid security effectively runs, this is also oil-filled electric equipment system
Making producer carries out the necessary means of exfactory inspection to its equipment.
Syringe its construction for using at present is common medical glass syringe.Need for sample to squeeze into chromatogram in experiment
The vaporizer of instrument, gasify and it is separated after, then carry out chromatography.Rate request is fast during sample introduction, if injection speed is slow
The vaporescence of sample can be made elongated, cause sample to be broadened into the initial band of chromatographic column, impact analysis；In addition, existing
Hand sampling, finger easily transfers heat to syringe, have impact on sample temperature, and then impact analysis result；While chromatographic sample introduction
There is certain pressure, about 0.2Mpa or so in mouth, it is easy to eject syringe piston, cause test operation to fail, it is impossible to
Accurate quantification as requested, if serious conditions operating personnel imprudence may result in gases at high pressure pushing syringe piston,
Piston is gone out and injures people by a crashing object, causes personal injury.
So being badly in need of a kind of sample introduction safe ready, the accurate sampling device of sample introduction now, to avoid sample waste, examination is improved
Test the accuracy and sample introduction efficiency of data.
Chinese patent mandate publication number CN104614473A discloses a kind of dielectric oil chromatographic analysis sampling device, the present invention
It is made up of syringe, fixed clip, quantitative fastener, antislip ring.This invention is only capable of solving manual quantitative sampling and prevents sample introduction
When the problem that is ejected of syringe piston, auto injection can not be solved, and automatically exit from problem after sample introduction is complete, while when using
Between it is long after quantify kelly loosen, sample volume produce error, cause measurement result inaccurate.
Chinese patent mandate publication number CN101639420A discloses the quantitative sampling device of a kind of liquid or fluid, including
Mounting bracket, syringe, sampling valve and Bit andits control mechanism, wherein, syringe is fixed on mounting bracket, the effect of Bit andits control mechanism
In the movement that piston is controlled on the piston of syringe.This invention can automatic sampling and sample introduction, but can not easily be with instrument
Device is mutually fixed, and can only promote piston, it is impossible to which the instruments such as syringe and chromatograph are automatically inserted into or are extracted, intelligence degree
It is low.
The content of the invention
The present invention is directed to the background technology technical problem to be solved, there is provided a kind of oil sample chromatography quantitative sampling device,
Safe ready, sample introduction is accurate, sample waste, experimental data deviation and the low problem of efficiency is effectively solved, while applying also for
The sampling of oil sample, it is widely applicable, it is easy to promote.
The present invention solves the technical scheme that is used of its above mentioned problem：It is Contraband shape comprising top board, side including cross section
The support of plate and base, the side plate interior sides face is provided with the chute and longitudinal rack of longitudinal T-shaped, and the base is in y-type structure,
Adsorbent equipment is provided with the base, the branch that cylindrical non-magnet material is constituted is vertically arranged between top board and base
Strut.
Slided on the support bar be arranged with movable block and it is hollow push leading screw, in the movable block towards the one of side plate
Side is provided with the sliding block matched with the chute, the movable block can the longitudinal sliding motion in chute under the guiding of sliding block, it is described
Longitudinal driving device is provided with movable block, the longitudinal driving device includes longitudinally disposed longitudinal motor, the longitudinal direction electricity
Longitudinal Vortex wheel gear is installed, a longitudinal gear is fixedly mounted on movable block on machine output shaft, longitudinal gear respectively with
Longitudinal Vortex wheel gear and longitudinal rack are meshed cooperation, promote movable block to be vertically moved on support bar, are set on the movable block
Mounting seat is equipped with, longitudinally through U-shaped opening is provided with the mounting seat, U-shaped installation cavity is provided with U-shaped opening, injected
The journal stirrup of device is fastened in the installation cavity of the U-shaped opening, and clamping device is provided with the movable block, and the clamping device sets
Put in the lower section of mounting seat, after syringe journal stirrup is fastened on installation cavity, clamping device is used for the stack shell clamping of syringe is solid
Calmly, proximity switch is provided with the movable block, the proximity switch is located between mounting seat and clamping device, described approaching is opened
The working face direction of pass is identical with the opening direction of U-shaped opening, and points to the central axis of U-shaped opening, the movable block upside
Lower piezoelectric machine is provided with, is provided with the lower piezoelectric machine output shaft and is pushed turbine gear.
The leading screw that pushes is connected positioned at the upside of movable block and with movable block rotation, and described pushing forms silk on leading screw
Thick stick gear, the screw gear with push turbine gear and be meshed cooperation, the movable block upside is provided with and pushes leading screw and puts down
The capable axis of guide, the axis of guide two ends are provided with adjustable upper limit position switch and lower position switch, it is described push leading screw and
It is oriented to the tip of the axis and is provided with end plate, the end plate rotates connection with leading screw is pushed, and the end plate is fixedly connected with the axis of guide, institute
The upper side for stating end plate is provided with end plate switch, and the trigger unit of the end plate switch can mutually be touched with top board, push leading screw
Sliding block is pushed with sliding to be provided with the axis of guide, the sliding block that pushes is moved between upper limit position switch and lower position switch, institute
State push sliding block with push threads of lead screw roll be connected, the sliding block that pushes closely is slidably connected with the axis of guide, is pushed described
Horizontal depression bar is provided with sliding block, controller is provided with the depression bar, the depression bar is provided with towards clamping device side
Microswitch, the clamping face central axis of the trigger unit of the microswitch, the central axis of U-shaped opening and gripper jaw is vertical
Overlapped to direction, being additionally provided with the support bar can be in described with the pressure switches of longitudinally adjust, the pressure switches
Between movable block and base, the trigger unit of the pressure switches can mutually be touched with movable block, when pressure switches are touched by movable block
During hair, in the syringe needle chromatographic injection port of insertion of the syringe being fastened in installation cavity.
The proximity switch, lower piezoelectric machine, microswitch, upper limit position switch, lower position switch, end plate switch, longitudinal direction electricity
Machine and pressure switches are electrically connected with controller respectively.
Preferably, the adsorbent equipment is the base magnet coil with armature being arranged in base, the base electromagnetism
Coil is electrically connected with controller.
Preferably, the adsorbent equipment is the one or more groups of vacuum cups for being arranged on Its lower side.
Preferably, the clamping device includes the fixed seat being arranged on movable block, and level is provided with the fixed seat
The dovetail groove of symmetry axis centered on U-shaped opening central axis, in the dovetail groove slide be provided with symmetrical gripper jaw,
The fixed seat side is provided with clamping motor, and the clamping leading screw of fixed seat is provided through on the clamping motor output shaft,
Screw rolling is connected with clamping slider on the clamping leading screw, and connecting rod is provided between the clamping slider and gripper jaw,
Connecting rod described in per side is provided with parallel two groups, and rubber layer is provided with the clamping face of gripper jaw, and at least one of
The clamping face inner side of the individual gripper jaw is provided with pressure sensor, the clamping motor and pressure sensor respectively with controller
It is electrically connected with.
Preferably, the lower piezoelectric machine and clamping motor use servomotor.
Meanwhile, the oil sample chromatography quantitative sampling device based on the above is fixed present invention also offers oil sample chromatography
The application method of sampling device is measured, is comprised the following steps：
Step 1：The installation of sampling device is fixed
Sampling device is placed near chromatographic injection port, the position of sampling device is adjusted, makes dust plug and chromatogram
The injection port of instrument overlaps, and is brought into close contact, later on adsorbent equipment, i.e., control base magnet coil to be powered by controller,
Base magnet coil produces magnetic field force, adsorbs on chromatographic shell, if base magnet coil cannot be adsorbed in chromatograph
Shell on, then mutually adsorbed with chromatograph shell using vacuum cup, reach the purpose of fixed sampling device.
Step 2：Initial preparation state
After sampling device is installed fixed completion and is powered, sampling device is in the clamping of holding state, i.e. clamping device
Pawl is in open configuration, pushes sliding block and is mutually touched with the trigger unit of upper limit position switch, the trigger unit and top board of end plate switch
Mutually touching, interior iron core and lower magnet ring phase magnetic attraction attachment.
Step 3：The placement and fixation of syringe
After oil sample syringe extracts oil sample, the journal stirrup of syringe is hung in installation cavity, the stack shell of syringe is through U-shaped
Hanging that Open Side Down, proximity switch detects syringe cylinder after one's death, and controller control clamping device clamps stack shell, that is, clamp
Motor drives clamping leading screw to rotate forward, and clamping leading screw drives clamping slider to medial motion, and connecting rod drives gripper jaw in
Between draw in, the pressure between pressure sensor real-time detection gripper jaw and injection sleeve on the inside of gripper jaw works as clamp pressure
After reaching certain value, controller control clamping motor is stopped, and so far, syringe completes to place and fixed.
Step 4：The retaining of syringe injection ram
After syringe is fixed, i.e., after clamping motor is stopped, controller control lower piezoelectric machine is rotated forward, and pushes whirlpool
Wheel gear drives the screw gear pushed on leading screw to rotate forward, and with rotating forward for leading screw is pushed, pushes sliding block and slowly puts down
Steady moves downward, after the injection ram that the trigger unit of microswitch on depression bar is injected device is triggered, under controller control
Medium-voltage Motor is stopped.
Step 5：The insertion of syringe
After lower piezoelectric machine is stopped, controller then controls longitudinal motor to rotate forward, with longitudinal Vortex wheel gear and
Positive transmission of longitudinal gear on longitudinal rack, movable block is steadily moved downward, and movable block triggers the trigger unit of pressure switches
After part, controller control longitudinal motor is stopped, now, in the plug chromatographic injection port of insertion of syringe.
Step 6：Oil sample sample introduction
After longitudinal motor is stopped, controller control lower piezoelectric machine rotate forward again, push sliding block move downward into
And the injection ram for pressing syringe is moved downward, by the injection port of the oil sample injecting chromatograph in syringe, sliding block is pushed
After triggering the trigger unit of lower position switch, controller control lower piezoelectric machine is stopped.
Step 7：The extraction of syringe
After pushing sliding block triggering lower position switch, controller control longitudinal motor is rotated backward, with longitudinal Vortex wheel gear
With reverse drive of longitudinal gear on longitudinal rack, movable block steadily moves upwards, by the syringe needle of syringe from chromatographic
Extracted in injection port, after the trigger unit of end plate switch is triggered by top board, controller control longitudinal motor is stopped, this
When, the plug of syringe is extracted from chromatographic injection port.
Step 8：The release of syringe
After longitudinal motor is stopped, controller control lower piezoelectric machine is rotated backward, and is pushed turbine gear driven and is pushed
Screw gear on leading screw is rotated backward, and with rotating backward for leading screw is pushed, is pushed sliding block and is smoothly moved upwards, when pushing
After the trigger unit of sliding block triggering upper limit position switch, controller control lower piezoelectric machine is stopped, and is rotated backward in lower piezoelectric machine
While, the clamping motor in controller control clamping device is rotated backward, and gripper jaw unclamps the injection sleeve of clamping, works as folder
Hold after pawl is expanded to standby initial position, controller control clamping motor is stopped, and operating personnel at any time can take syringe
Under, so far sampling device completion work waits sample introduction next time.
The invention has the advantages that：
1st, strut device serves the position-limiting action to syringe piston, effectively prevents piston by injection port of chromatograph
The situation of high pressure ejection；
2nd, clamping and fixing device can play good longitudinal register effect in syringe into and out in, it is to avoid pin
There is deviation between head and injection port；
3rd, whole device easily can mutually be tightly fastened with chromatograph, and anti-locking apparatus shake when in use, influence
The sample introduction of sample；
4th, accurate when in use to determine sample size, the deviation of reduction experimental data improves accuracy of measurement, reduces and waste；
5th, it is adapted to the syringe of plurality of specifications, improves the utilization rate of device；
6th, syringe quick and precisely, is shortening the time of sample introduction into and out during, improves efficiency；
7th, the present apparatus is applicable not only to chromatographic quantitative sample injection detection, is also applied for quantitative sampling detection.
Brief description of the drawings
Below in conjunction with drawings and Examples, the invention will be further described；
Fig. 1 is the structural profile schematic diagram of the preferred embodiment of the present invention；
Fig. 2 is the structure front view of the preferred embodiment of the present invention；
Fig. 3 is the A cross section views of the preferred embodiment of the present invention；
Fig. 4 is the B cross section views of the preferred embodiment of the present invention；
Fig. 5 is the C cross section views of the preferred embodiment of the present invention.
In accompanying drawing：
100th, support, 110, top board, 120, side plate, 121, longitudinal rack, 130, base, 131, base magnet coil,
200th, support bar,
300th, movable block,
310th, mounting seat, 311, installation cavity, 312, U-shaped opening, 313, proximity switch,
320th, clamping device, 321, fixed seat, 322, clamping motor, 323, clamping leading screw, 324, clamping slider, 325, folder
Hold pawl, 326, connecting rod,
330th, lower piezoelectric machine, 331, push turbine gear,
400th, leading screw is pushed, 401, screw gear, 402, push sliding block, 403, depression bar, 404, microswitch,
410th, the axis of guide, 411, upper limit position switch, 412, lower position switch, 413, end plate, 414, end plate switch
500th, longitudinal motor, 501, longitudinal Vortex wheel gear, 502, longitudinal gear, 503, pressure switches,
600th, controller；
Specific embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These accompanying drawings are simplified schematic diagram, only with
Illustration illustrates basic structure of the invention, therefore it only shows the composition relevant with the present invention.
Further, it is desirable that explanation, unless stated otherwise or points out, the term that may relate to otherwise in specification
" on ", the description such as D score be used only for distinguishing each component, element, step in specification etc., without being intended to indicate that each
Logical relation or ordinal relation between component, element, step etc..
The correlation word of " rotating forward " " the rotating backward " of clamping motor 322, lower piezoelectric machine 330 and longitudinal motor 500
The convenience of description is only for, the carrying out practically direction of motor is not represented.
A kind of oil sample chromatography quantitative sampling device, including cross section is Contraband shape comprising top board 110, the and of side plate 120
The support 100 of base 130, the chute and longitudinal rack 121 of longitudinal T-shaped are provided with the medial surface of side plate 120, and base 130 is in Y types
Structure, is provided with adsorbent equipment on base 130, and further, adsorbent equipment is the bottom with armature being arranged in base 130
Seat magnet coil 131, further, adsorbent equipment can also be provided in one or more groups of vacuum cups of the downside of base 130.
The support bar 200 that cylindrical non-magnet material is constituted is vertically arranged between top board 110 and base 130.
Slided on support bar 200 and be arranged with movable block 300 and hollow push leading screw 400.
The sliding block matched with chute is provided with towards the side of side plate 120 in movable block 300, the activity under the guiding of sliding block
The longitudinal sliding motion in chute of block 300.
Longitudinal driving device is provided with movable block 300, longitudinal driving device includes longitudinally disposed longitudinal motor 500,
Longitudinal Vortex wheel gear 501 is installed, a longitudinal gear 502 is fixedly mounted on movable block 300 on the output shaft of longitudinal motor 500,
Longitudinal gear 502 is meshed cooperation with longitudinal Vortex wheel gear 501 and longitudinal rack 121 respectively, with turning for longitudinal motor 500
Dynamic, the mutual transmission between gear promotes movable block 300 to be vertically moved on support bar 200.
Mounting seat 310 is provided with movable block 300, longitudinally through U-shaped opening 312 is provided with mounting seat 310, it is U-shaped to open
U-shaped installation cavity 311 is provided with mouth 312, the journal stirrup of syringe is fastened in the installation cavity 311 of U-shaped opening 312.
The clamping device 320 below mounting seat 310 is provided with movable block 300, clamping device 320 includes being arranged on work
Fixed seat 321 on motion block 300, is provided with the horizontal symmetry axis centered on the central axis of U-shaped opening 312 in fixed seat 321
Dovetail groove, slided in dovetail groove and be provided with symmetrical gripper jaw 325, the side of fixed seat 321 is provided with clamping motor 322,
The clamping leading screw 323 of fixed seat 321 is provided through on the clamping output shaft of motor 322, screw rolling connection on clamping leading screw 323
There is clamping slider 324, connecting rod 326 is provided between clamping slider 324 and gripper jaw 325, the connecting rod 326 per side is set
There are parallel two groups, rubber layer is provided with the clamping face of gripper jaw 325, and in the folder of at least one of which gripper jaw 325
Hold face inner side and be provided with pressure sensor, after syringe journal stirrup is fastened on installation cavity 311, clamping device 320 is used for will injection
The stack shell of device is gripped.
Be provided with proximity switch 313 on movable block 300, proximity switch 313 be located at mounting seat 310 and clamping device 320 it
Between, the working face direction of proximity switch 313 is identical with the opening direction of U-shaped opening 312, and points to the central shaft of U-shaped opening 312
Line.
The upside of movable block 300 is provided with lower piezoelectric machine 330, is set on the output shaft of lower piezoelectric machine 330 and pushes turbine gear
331。
Push leading screw 400 to be connected positioned at the upside of movable block 300 and with the rotation of movable block 300, push and set on leading screw 400
Have a screw gear 401, screw gear 401 with push turbine gear 331 and be meshed cooperation.
The upside of movable block 300 is provided with the axis of guide 410 parallel with leading screw 400 is pushed, and the two ends of the axis of guide 410 are provided with can
The upper limit position switch 411 and lower position switch 412 of regulation, the end for pushing leading screw 400 and the axis of guide 410 are provided with end plate 413,
End plate 413 rotates connection with leading screw 400 is pushed, and end plate 413 is fixedly connected with the axis of guide 410, and the upper side of end plate 413 is provided with
End plate switch 414, the trigger unit of end plate switch 414 can mutually be touched with top board 110.
Slide to be provided with leading screw 400 and the axis of guide 410 is pushed and push sliding block 402, push sliding block 402 and opened in upper limit
Close and moved between 411 and lower position switch 412, push sliding block 402 and be connected with the screw rolling of leading screw 400 is pushed, push sliding block 402
Closely it is slidably connected with the axis of guide 410, horizontal depression bar 403 is provided with sliding block 402 is pushed, control is provided with depression bar 403
Device processed 600, depression bar 403 is provided with microswitch 404 towards the side of clamping device 320, wherein, the trigger unit of microswitch 404
The clamping face central axis of part, the central axis of U-shaped opening 312 and gripper jaw 325 overlaps in longitudinal direction.
Being additionally provided with support bar 200 can be in movable block with the pressure switches 503 of longitudinally adjust, pressure switches 503
Between 300 and base 130, the trigger unit of pressure switches 503 can mutually be touched with movable block 300, when pressure switches 503 are movable
When block 300 is triggered, the syringe needle in installation cavity 311 is inserted in chromatographic injection port.
Wherein base magnet coil 131, proximity switch 313, clamping motor 322, pressure sensor, lower piezoelectric machine 330, micro-
503 points of dynamic switch 404, upper limit position switch 411, lower position switch 412, end plate switch 414, longitudinal motor 500 and pressure switches
It is not electrically connected with controller 600.
Further, lower piezoelectric machine 330 and clamping motor 322 use servomotor.
Further, for a better understanding of the present invention, application method of the invention is additionally provided, is comprised the following steps：
Step 1：The installation of sampling device is fixed
Sampling device is placed near chromatographic injection port, the position of sampling device is adjusted, makes dust plug 603 and color
The injection port of spectrometer overlaps, and is brought into close contact, later on adsorbent equipment, i.e., control base magnet coil by controller 600
131 are powered, and base magnet coil 131 produces magnetic field force, adsorb on chromatographic shell, if the nothing of base magnet coil 131
Method is adsorbed on chromatographic shell, then mutually adsorbed with chromatograph shell using vacuum cup, reaches the mesh of fixed sampling device
's.
Step 2：Initial preparation state
After sampling device is installed fixed completion and is powered, sampling device is in holding state, the i.e. folder of clamping device 320
Hold pawl 325 and be in open configuration, push sliding block 402 and mutually touched with the trigger unit of upper limit position switch 411, end plate switch 414
Trigger unit is mutually touched with top board 110, interior iron core 601 and the phase magnetic attraction attachment of lower magnet ring 605.
Step 3：The placement and fixation of syringe
After oil sample syringe extracts oil sample, the journal stirrup of syringe is hung in installation cavity 311, the stack shell of syringe is passed through
The downward hanging of U-shaped opening 312, proximity switch 313 detects syringe cylinder after one's death, and controller 600 controls clamping device 320 by cylinder
Body is clamped, that is, clamp motor 322 and drive clamping leading screw 323 to rotate forward, and clamping leading screw 323 drives clamping slider 324 inside
Lateral movement, connecting rod 326 drives gripper jaw 325 to be drawn in centre, the pressure sensor real-time detection clamping of the inner side of gripper jaw 325
Pressure between pawl 325 and injection sleeve, after clamp pressure reaches certain value, the control clamping motor 322 of controller 600 stops
Only work, so far, syringe completes to place and fixed.
Step 4：The retaining of syringe injection ram
After syringe is fixed, i.e., after clamping motor 322 is stopped, the control of controller 600 lower piezoelectric machine 330 is positive to be turned
It is dynamic, push turbine gear 331 and drive the screw gear 401 pushed on leading screw 400 to rotate forward, with pushing leading screw 400 just
To rotation, push sliding block 402 and slowly and steadily move downward, when the trigger unit of microswitch 404 on depression bar 403 is injected device
Injection ram triggering after, controller 600 control lower piezoelectric machine 330 be stopped.
Step 5：The insertion of syringe
After lower piezoelectric machine 330 is stopped, then control longitudinal motor 500 is rotated forward controller 600, with longitudinal Vortex
The positive transmission of wheel gear 501 and longitudinal gear 502 on longitudinal rack 121, movable block 300 is steadily moved downward, movable block
After the trigger unit of 300 triggering pressure switches 503, the control of controller 600 longitudinal motor 500 is stopped, now, syringe
Plug is inserted in chromatographic injection port.
Step 6：Oil sample sample introduction
After longitudinal motor 500 is stopped, the control of controller 600 lower piezoelectric machine 330 is rotated forward again, pushes sliding block
402 move downward and then press the injection ram of syringe and move downward, by the sample introduction of the oil sample injecting chromatograph in syringe
In mouthful, after pushing the trigger unit of the triggering lower position switch 412 of sliding block 402, the control lower piezoelectric machine 330 of controller 600 stops work
Make.
Step 7：The extraction of syringe
After pushing the triggering lower position switch 412 of sliding block 402, the control of controller 600 longitudinal motor 500 is rotated backward, with
The reverse drive of longitudinal Vortex wheel gear 501 and longitudinal gear 502 on longitudinal rack 121, the steady motion upwards of movable block 300,
The syringe needle of syringe is extracted from chromatographic injection port, after the trigger unit of end plate switch 414 is triggered by top board 110,
The control of controller 600 longitudinal motor 500 is stopped, and now, the plug of syringe is extracted from chromatographic injection port.
Step 8：The release of syringe
After longitudinal motor 500 is stopped, the control of controller 600 lower piezoelectric machine 330 is rotated backward, and pushes turbine gear
331 drive the screw gear 401 pushed on leading screw 400 to rotate backward, and with rotating backward for leading screw 400 is pushed, push sliding block
402 smoothly motions upwards, after the trigger unit of the triggering upper limit position switch 411 of sliding block 402 is pushed, under controller 600 is controlled
Medium-voltage Motor 330 is stopped, while lower piezoelectric machine 330 is rotated backward, the folder in the control clamping device 320 of controller 600
Hold motor 322 to rotate backward, gripper jaw 325 unclamps the injection sleeve of clamping, when gripper jaw 325 is expanded to standby initial position
Afterwards, the control of controller 600 clamping motor 322 is stopped, and operating personnel at any time can remove syringe, and so far sampling device is complete
Into work, sample introduction next time is waited.
In sum, only presently preferred embodiments of the present invention, not for limiting the scope of the present invention, by above-mentioned
Description, relevant staff can carry out various change without departing from the scope of the technological thought of the present invention' completely
More and modification.The technical scope of this invention is not limited to the content on specification, all claimed ranges under this invention
Shape, construction, feature and spiritual so-called impartial change and modification, all should include with scope of the presently claimed invention.
Claims (6)
1. a kind of oil sample chromatography quantitative sampling device, it is characterised in that：
It is the support (100) comprising top board (110), side plate (120) and base (130) of Contraband shape, the side plate including cross section
(120) medial surface is provided with the chute and longitudinal rack (121) of longitudinal T-shaped, the base (130) in y-type structure, at the bottom
Adsorbent equipment is provided with seat (130), cylindrical non-magnet material is vertically arranged between top board (110) and base (130)
The support bar (200) of composition,
Slided on the support bar (200) be arranged with movable block (300) and it is hollow push leading screw (400),
The sliding block matched with the chute, the movable block are provided with towards the side of side plate (120) in the movable block (300)
(300) can the longitudinal sliding motion in chute under the guiding of sliding block,
Longitudinal driving device is provided with the movable block (300), the longitudinal driving device includes longitudinally disposed longitudinal direction electricity
Machine (500), is provided with longitudinal Vortex wheel gear (501) on longitudinal motor (500) output shaft, a longitudinal gear (502) is fixed
On movable block (300), longitudinal gear (502) respectively with longitudinal Vortex wheel gear (501) and longitudinal rack (121) phase
Engagement coordinates, and promotes movable block (300) to be vertically moved on support bar (200),
Mounting seat (310) is provided with the movable block (300), longitudinally through U-shaped opening is provided with the mounting seat (310)
(312) U-shaped installation cavity (311), is provided with U-shaped opening (312), the journal stirrup of syringe is fastened on the U-shaped opening (312)
Installation cavity (311) in,
Clamping device (320) is provided with the movable block (300), the clamping device (320) is arranged on mounting seat (310)
Lower section, after syringe journal stirrup is fastened on installation cavity (311), clamping device (320) for the stack shell of syringe to be gripped,
Proximity switch (313) is provided with the movable block (300), the proximity switch (313) is positioned at mounting seat (310) and folder
Hold between device (320), the working face direction of the proximity switch (313) is identical with the opening direction of U-shaped opening (312), and
The central axis of U-shaped opening (312) is pointed to,
Movable block (300) upside is provided with lower piezoelectric machine (330), is provided with down on lower piezoelectric machine (330) output shaft
Pressure turbine gear (331),
The leading screw (400) that pushes is connected positioned at the upside of movable block (300) and with movable block (300) rotation,
Described pushing forms screw gear (401) on leading screw (400), the screw gear (401) with push turbine gear
(331) be meshed cooperation,
Movable block (300) upside is provided with the axis of guide (410) parallel with leading screw (400) is pushed, the axis of guide (410)
Two ends are provided with adjustable upper limit position switch (411) and lower position switch (412),
It is described to push leading screw (400) and the end of the axis of guide (410) is provided with end plate (413), the end plate (413) and lower silk pressing
Thick stick (400) rotates connection, and the end plate (413) is fixedly connected with the axis of guide (410), and the upper side of the end plate (413) is set
There is end plate to switch (414), the trigger unit of end plate switch (414) can mutually be touched with top board (110),
Slide to be provided with leading screw (400) and the axis of guide (410) is pushed and push sliding block (402), the sliding block (402) that pushes exists
Moved between upper limit position switch (411) and lower position switch (412), it is described to push sliding block (402) and push leading screw (400) screw thread
Connection is rolled, the sliding block (402) that pushes closely is slidably connected with the axis of guide (410),
Horizontal depression bar (403) is provided with sliding block (402) in described pushing, controller is provided with the depression bar (403)
(600),
The depression bar (403) is provided with microswitch (404) towards clamping device (320) side, the microswitch (404)
The clamping face central axis of trigger unit, the central axis of U-shaped opening (312) and gripper jaw (325) overlaps in longitudinal direction,
Being additionally provided with the support bar (200) can be with the pressure switches (503) of longitudinally adjust, the pressure switches (503)
Between the movable block (300) and base (130), the trigger unit of the pressure switches (503) can be with movable block (300)
Mutually touch, when pressure switches (503) are triggered by movable block (300), the syringe needle of the syringe being fastened in installation cavity (311) is inserted
In entering chromatographic injection port,
The proximity switch (313), lower piezoelectric machine (330), microswitch (404), upper limit position switch (411), lower position switch
(412), end plate switch (414), longitudinal motor (500) and pressure switches (503) are electrically connected with controller (600) respectively.
2. oil sample chromatography quantitative sampling device as claimed in claim 1, it is characterised in that：
The adsorbent equipment is the base magnet coil (131) with armature being arranged in base (130), the base electromagnetic wire
Circle (131) is electrically connected with controller (600).
3. oil sample chromatography quantitative sampling device as claimed in claim 1, it is characterised in that：
The adsorbent equipment is to be arranged on the one or more groups of vacuum cups on the downside of base (130).
4. oil sample chromatography quantitative sampling device as claimed in claim 1, it is characterised in that：
The clamping device (320) includes the fixed seat (321) being arranged on movable block (300), is set on the fixed seat (321)
The horizontal dovetail groove of symmetry axis centered on U-shaped opening (312) central axis is equipped with, is slided in the dovetail groove and is provided with
Symmetrical gripper jaw (325),
Fixed seat (321) side is provided with clamping motor (322), is provided with described clamping motor (322) output shaft and worn
The clamping leading screw (323) of fixed seat (321) is crossed, screw rolling is connected with clamping slider (324) on clamping leading screw (323),
Connecting rod (326) is provided between the clamping slider (324) and gripper jaw (325), connecting rod (326) is set described in per side
There are parallel two groups, rubber layer is provided with the clamping face of gripper jaw (325), and in gripper jaw described at least one of which
(325) clamping face inner side is provided with pressure sensor, the clamping motor (322) and pressure sensor respectively with controller
(600) it is electrically connected with.
5. oil sample chromatography quantitative sampling device as claimed in claim 1, it is characterised in that：
The lower piezoelectric machine (330) and clamping motor (322) use servomotor.
6. it is using the application method of the oil sample chromatography quantitative sampling device as described in claim 1-5 is any including as follows
Step：
Step 1：The installation of sampling device is fixed
Sampling device is placed near chromatographic injection port, the position of sampling device is adjusted, makes dust plug (603) and chromatogram
The injection port of instrument overlaps, and is brought into close contact, later on adsorbent equipment, i.e., control base magnet coil by controller (600)
(131) it is powered, base magnet coil (131) produces magnetic field force, adsorbs on chromatographic shell, if base magnet coil
(131) cannot adsorb on chromatographic shell, then mutually be adsorbed with chromatograph shell using vacuum cup, reach fixed sample introduction dress
The purpose put；
Step 2：Initial preparation state
After sampling device is installed fixed completion and is powered, sampling device is in holding state, the i.e. clamping of clamping device (320)
Pawl (325) pushes sliding block (402) and is mutually touched with the trigger unit of upper limit position switch (411) in open configuration, end plate switch
(414) trigger unit is mutually touched with top board (110), interior iron core (601) and lower magnet ring (605) phase magnetic attraction attachment；
Step 3：The placement and fixation of syringe
After oil sample syringe extracts oil sample, the journal stirrup of syringe is hung in installation cavity (311), the stack shell of syringe passes through U
Type opening (312) hanging downwards, proximity switch (313) detects syringe cylinder after one's death, controller (600) control clamping device
(320) stack shell is clamped, that is, clamps motor (322) and drive clamping leading screw (323) to rotate forward, clamping leading screw (323) drives
To medial motion, connecting rod (326) drives gripper jaw (325) to be drawn in centre to clamping slider (324), gripper jaw (325) inner side
Pressure of pressure sensor real-time detection gripper jaw (325) and injection sleeve between, after clamp pressure reaches certain value,
Controller (600) control clamping motor (322) is stopped, and so far, syringe completes to place and fixed；
Step 4：The retaining of syringe injection ram
After syringe is fixed, i.e., after clamping motor (322) is stopped, controller (600) controls lower piezoelectric machine (330) positive
Rotate, push turbine gear (331) and drive the screw gear (401) that pushes on leading screw (400) to rotate forward, with pushing leading screw
(400) rotate forward, pushes sliding block (402) and slowly and steadily moves downward, when microswitch (404) on depression bar (403)
After trigger unit is injected the triggering of the injection ram of device, controller (600) controls lower piezoelectric machine (330) to be stopped；
Step 5：The insertion of syringe
After lower piezoelectric machine (330) is stopped, controller (600) then controls longitudinal motor (500) to rotate forward, with longitudinal direction
The positive transmission of turbine gear (501) and longitudinal gear (502) on longitudinal rack (121), the steady fortune downwards of movable block (300)
Dynamic, after the trigger unit of movable block (300) triggering pressure switches (503), controller (600) controls longitudinal motor (500) to stop
Work, now, in the plug chromatographic injection port of insertion of syringe；
Step 6：Oil sample sample introduction
After longitudinal motor (500) is stopped, controller (600) controls lower piezoelectric machine (330) to rotate forward again, pushes sliding block
(402) move downward and then press the injection ram of syringe and move downward, by entering for the oil sample injecting chromatograph in syringe
In sample mouthful, after pushing the trigger unit of sliding block (402) triggering lower position switch (412), controller (600) control lower piezoelectric machine
(330) it is stopped；
Step 7：The extraction of syringe
After pushing sliding block (402) triggering lower position switch (412), controller (600) controls longitudinal motor (500) to rotate backward,
With the reverse drive of longitudinal Vortex wheel gear (501) and longitudinal gear (502) on longitudinal rack (121), movable block (300) is put down
Steady motion upwards, the syringe needle of syringe is extracted from chromatographic injection port, when the trigger unit of end plate switch (414) is pushed up
After plate (110) triggering, controller (600) controls longitudinal motor (500) to be stopped, and now, the plug of syringe is from chromatograph
Injection port in extract；
Step 8：The release of syringe
After longitudinal motor (500) is stopped, controller (600) controls lower piezoelectric machine (330) to rotate backward, and pushes turbo tooth
Wheel (331) drives the screw gear (401) pushed on leading screw (400) to rotate backward, and turns with the reverse of leading screw (400) is pushed
It is dynamic, sliding block (402) smoothly motion upwards is pushed, when the trigger unit for pushing sliding block (402) triggering upper limit position switch (411)
Afterwards, controller (600) controls lower piezoelectric machine (330) to be stopped, while lower piezoelectric machine (330) is rotated backward, controller
(600) the clamping motor (322) in control clamping device (320) is rotated backward, and gripper jaw (325) unclamps the syringe cylinder of clamping
Body, after gripper jaw (325) is expanded to standby initial position, controller (600) control clamping motor (322) is stopped, and grasps
Making personnel at any time can remove syringe, so far sampling device completion work, wait sample introduction next time.
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| CN201710065151.9A CN106885863B (en) | 2017-02-06 | 2017-02-06 | A kind of oil sample chromatography quantitative sampling device and application method |
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| CN109870331A (en) * | 2019-01-17 | 2019-06-11 | 中国辐射防护研究院 | A kind of radioactive cement solidification body properties of sample measurement pretreatment unit |
| CN112147246A (en) * | 2020-09-23 | 2020-12-29 | 浙江求实环境监测有限公司 | Rapid detection method for polybrominated diphenyl ethers in soil |
| CN112816413A (en) * | 2021-01-06 | 2021-05-18 | 北京北分瑞利分析仪器(集团)有限责任公司 | Positioning and feeding device for solid sample |
| CN112816606A (en) * | 2021-02-05 | 2021-05-18 | 江苏秋泓环境检测有限公司 | Chromatographic separation and analysis device with high automation degree |
| CN113464683A (en) * | 2018-06-11 | 2021-10-01 | 芜湖美的厨卫电器制造有限公司 | Thermostatic valve assembly and water heater |
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Inventor after: Wang Nini Inventor after: Du Zhijian Inventor after: Wang Yawei Inventor after: Huan Dahai Inventor after: Wang Xuefeng Inventor after: Zhao Peng Inventor after: Sheng Linyang Inventor after: Li Chen Inventor after: Hua Haidi Inventor after: Sun Yong Inventor after: Lv Zhenxiang Inventor after: Qin Dezhan Inventor after: Wang Wendao Inventor after: Liu Xirong Inventor after: Zhang Yating Inventor after: Li Xiaoqing Inventor after: Yu Yang Inventor after: Wang Xianrong Inventor after: Yang Bing Inventor before: Liu Xirong Inventor before: Yang Bing Inventor before: Sheng Linyang Inventor before: Dong Hui Inventor before: Qin Dezhan Inventor before: Li Chen Inventor before: Hua Haidi Inventor before: Sun Yong Inventor before: Lv Zhenxiang Inventor before: Yuan Zhaojuan Inventor before: Yang Yongqian Inventor before: Sun Dengping Inventor before: Wang Xianrong Inventor before: Du Zhijian Inventor before: Wang Yawei Inventor before: Huan Dahai Inventor before: Wang Xuefeng Inventor before: Zhao Peng |
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