CN106885863B - 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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- CN106885863B CN106885863B CN201710065151.9A CN201710065151A CN106885863B CN 106885863 B CN106885863 B CN 106885863B CN 201710065151 A CN201710065151 A CN 201710065151A CN 106885863 B CN106885863 B CN 106885863B
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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, the supporting rod being included on stent, movable block and pushing component on supporting rod, longitudinal driving device is provided with movable block, the mounting base of mounting of syringe and the clamping device for playing fixed syringe, longitudinal driving device includes longitudinal motor and its driving gear set, mounting base includes U-shaped opening and installation cavity, clamping device includes fixed seat, clamp motor, clamp leading screw, clamping slider, connecting rod and gripper jaw, push the lower piezoelectric machine that component includes being connected with movable block, push leading screw, guiding axis, driving gear set, and push sliding block.The application method of the present invention is additionally provided at the same time.The problem of safe ready of the present invention, sample introduction is accurate, effectively solves sample waste, experimental data deviation and low efficiency, while the quantitative sampling of oil sample is applied also for, it is widely applicable, it is easy to spread.
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
The gas being dissolved in that can produce in insulating oil, dielectric oil chromatographic analysis method be it is a kind of to oil-filled equipment carry out status assessment 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 judge that running oil-filled electric power is set for power supply enterprise
The failures such as the standby overheat that whether there is latency, electric discharge, to ensure that power grid security is effectively run, this is also oil-filled electric equipment system
Make the necessary means that producer carries out its equipment exfactory inspection.
Its construction of the syringe used at present is common medical glass syringe.Need sample squeezing into chromatography in experiment
The vaporizer of instrument, gasifies and after separation, then carries out chromatography.Rate request is fast during sample introduction, if injection speed is slow
The vaporescence of sample can be made elongated, cause the initial band that sample enters chromatographic column to broaden, impact analysis；It is in addition, existing
Hand sampling, finger easily transfer heat to syringe, have impact on sample temperature, and then impact analysis result；Chromatographic sample introduction at the same time
There are certain pressure, about 0.2Mpa or so for mouth, it is easy to and syringe piston is ejected, causes test operation to fail, can not
Accurate quantification as requested, if serious conditions operating personnel imprudence, which may result in gases at high pressure, promotes syringe piston,
Piston, which is gone out, 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 of syringe, fixed clip, quantitative fastener, antislip ring.The invention is only capable of solving manual quantitative sampling and prevents sample introduction
When syringe piston the problem of being ejected, cannot solve auto injection, and sample introduction it is complete after automatically exit from problem, while when using
Between it is long after quantify kelly and loosen, sample volume produces error, causes measurement result inaccurate.
Chinese patent mandate publication number CN101639420A discloses a kind of quantitative sampling device 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 of control piston on the piston of syringe.The 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 and syringe is automatically inserted into or extracted with instruments such as chromatographs, intelligence degree
It is low.
The content of the invention
The present invention is directed to background technology technical problems to be solved, there is provided a kind of oil sample chromatography quantitative sampling device,
The problem of safe ready, sample introduction is accurate, effectively solves sample waste, experimental data deviation and low efficiency, applies also at the same time
The sampling of oil sample, it is widely applicable, it is easy to spread.
Technical solution is used by the present invention solves its above problem：Including cross section top plate, side are included for Contraband shape
The stent of plate and base, the side plate interior sides face are provided with the sliding slot 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 formed is vertically arranged between top plate and base
Strut.
Sliding sleeve is equipped with movable block and hollow pushing leading screw on the supporting rod, in the movable block towards side plate one
Side be provided with the matched sliding block of the sliding slot, the movable block can the longitudinal sliding motion in sliding slot 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 on machine output shaft, a longitudinal gear is fixedly mounted on movable block, the longitudinal direction gear respectively with
Longitudinal Vortex wheel gear and longitudinal rack are meshed cooperation, promote movable block to be vertically moved on supporting rod, are set on the movable block
Mounting base is equipped with, longitudinally through U-shaped opening is provided with the mounting base, U-shaped installation cavity is provided with U-shaped opening, is 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 is set
Put in the lower section of mounting base, after syringe journal stirrup is fastened on installation cavity, clamping device is used to clamp the stack shell of syringe solid
Calmly, it is provided with the movable block close to switch, described close to switching between mounting base and clamping device, described approach is opened
The working face direction of pass is identical with the opening direction of U-shaped opening, and is directed toward the central axis of U-shaped opening, on the upside of the movable block
Lower piezoelectric machine is provided with, is provided with the lower piezoelectric machine output shaft and pushes turbine gear.
The leading screw that pushes is located at the upside of movable block and is rotatablely connected with movable block, and silk is formed on the pushing leading screw
Thick stick gear, the screw gear are meshed cooperations with pushing turbine gear, are provided with the upside of the movable block and are put down with pushing leading screw
Capable guiding axis, the guiding axis are provided at both ends with adjustable upper limit position switch and lower position switch, the pushing leading screw and
It is oriented to the tip of the axis and is provided with end plate, the end plate and pushing leading screw rotation connection, the end plate is fixedly connected with guiding axis, 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 plate, push leading screw
Pushing sliding block is provided with being slided on guiding axis, the pushing sliding block moves between upper limit position switch and lower position switch, institute
State and push sliding block with pushing threads of lead screw rolling connection, the pushing sliding block is closely slidably connected with guiding axis, in the pushing
Horizontal compression bar is provided with sliding block, controller is provided with the compression bar, the compression 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 supporting rod can be with the pressure switches of longitudinally adjust, and the pressure switches are in described
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, the syringe needle for the syringe being fastened in installation cavity is inserted into chromatographic injection port.
It is described electric close to switch, lower piezoelectric machine, microswitch, upper limit position switch, lower position switch, end plate switch, longitudinal direction
Machine and pressure switches are electrically connected with controller respectively.
Preferably, the adsorbent equipment is the base electromagnetic 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
Be provided with pressure sensor on the inside of the clamping face of a gripper jaw, the clamping motor and pressure sensor respectively with controller
It is electrically connected.
Preferably, the lower piezoelectric machine and clamping motor use servomotor.
Meanwhile the oil sample chromatography quantitative sampling device based on more than, present invention also offers oil sample chromatography to determine
The application method of sampling device is measured, is included 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 chromatography
The injection port of instrument overlaps, and fits closely, later on adsorbent equipment, i.e., controls base electromagnetic coil to be powered by controller,
Base electromagnetic coil produces magnetic field force, adsorbs on chromatographic shell, if base electromagnetic coil can not be adsorbed in chromatograph
Shell on, then mutually adsorbed using vacuum cup and chromatograph shell, achieve the purpose that fixed sampling device.
Step 2：Initial preparation state
After sampling device installs fixed completion and is powered, sampling device is in the clamping of holding state, i.e. clamping device
Pawl is in open configuration, and the trigger unit for pushing sliding block and upper limit position switch is mutually touched, the trigger unit and top plate of end plate switch
Mutually touch, 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, syringe cylinder is detected behind close to switch, and controller control clamping device clamps stack shell, that is, clamps
Motor drives clamping leading screw to rotate forward, and clamping leading screw drives the inside lateral movement of clamping slider, and connecting rod drives gripper jaw in
Between collapse, the pressure sensor on the inside of gripper jaw detects the pressure between gripper jaw and injection sleeve in real time, works as clamp pressure
After reaching certain value, controller control clamping motor is stopped, and so far, syringe is completed to place and fixed.
Step 4：The retaining of syringe injection ram
After syringe fixes, i.e., after clamping motor is stopped, controller control lower piezoelectric machine rotates 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 trigger unit of microswitch on compression bar is injected the injection ram triggering of device, 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 steadily move downward, and movable block triggers the trigger unit of pressure switches
After part, controller control longitudinal motor is stopped, and at this time, the plug of syringe is inserted into chromatographic injection port.
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 moves downward, by the injection port of the oil sample injecting chromatograph in syringe, sliding block is pushed
After the trigger unit for triggering 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 rotates 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 plate, 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 rotates backward, and pushes turbine gear band and moves pushing
Screw gear on leading screw rotates backward, and with rotating backward for leading screw is pushed, pushes sliding block and smoothly moves upwards, work as 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, controller controls the clamping motor in clamping device to rotate 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 completes work, waits sample introduction next time.
The invention has the advantages that：
1st, strut device plays 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, avoid pin
Deviation occurs between head and injection port；
3rd, whole device easily can be mutually tightly fastened with chromatograph, and anti-locking apparatus shakes when in use, be influenced
The sample introduction of sample；
4th, sample size is accurately determined when in use, reduces the deviation of experimental data, improves accuracy of measurement, is reduced and is wasted；
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 accompanying drawings and embodiments, the invention will be further described；
Fig. 1 is the structural profile illustration 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 attached drawing：
100th, stent, 110, top plate, 120, side plate, 121, longitudinal rack, 130, base, 131, base electromagnetic coil,
200th, supporting rod,
300th, movable block,
310th, mounting base, 311, installation cavity, 312, U-shaped opening, 313, close to 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, compression bar, 404, microswitch,
410th, guiding axis, 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；
Embodiment
In conjunction with the accompanying drawings, the present invention is further explained in detail.These attached drawings are simplified schematic diagram, only with
Illustration illustrates the basic structure of the present invention, therefore it only shows composition related to the present invention.
Further, it is desirable that explanation, unless stated otherwise or is pointed out, otherwise the term that may relate in specification
Descriptions such as " on ", " under " is used only for distinguishing various components in specification, element, step etc., each without being intended to indicate that
Logical relation or ordinal relation between component, element, step etc..
Clamp the correlation word of " rotating forward " " the rotating backward " of motor 322, lower piezoelectric machine 330 and longitudinal motor 500
The convenience of description is only for, does not represent the carrying out practically direction of motor.
A kind of oil sample chromatography quantitative sampling device, including cross section include top plate 110,120 and of side plate for Contraband shape
The stent 100 of base 130, is provided with the sliding slot and longitudinal rack 121 of longitudinal T-shaped, base 130 is in Y types in 120 medial surface of side plate
Structure, is provided with adsorbent equipment on base 130, and further, adsorbent equipment is the bottom with armature being arranged in base 130
Seat electromagnetic coil 131, further, adsorbent equipment can also be provided in one or more groups of vacuum cups of the downside of base 130.
The supporting rod 200 that cylindrical non-magnet material is formed is vertically arranged between top plate 110 and base 130.
Sliding sleeve is equipped with movable block 300 and hollow pushing leading screw 400 on supporting rod 200.
It is provided with the side of movable block 300 towards side plate 120 with the matched sliding block of sliding slot, the activity under the guiding of sliding block
The longitudinal sliding motion in sliding slot 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 on 500 output shaft of longitudinal motor, a longitudinal gear 502 is fixedly mounted on movable block 300,
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 supporting rod 200.
Mounting base 310 is provided with movable block 300, longitudinally through U-shaped opening 312 is provided with mounting base 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 being provided with movable block 300 below mounting base 310, clamping device 320 include being arranged on work
Fixed seat 321 on motion block 300, symmetry axis centered on being provided with horizontal 312 central axis by U-shaped opening in fixed seat 321
Dovetail groove, slided in dovetail groove and be provided with symmetrical gripper jaw 325,321 side of fixed seat is provided with clamping motor 322,
The clamping leading screw 323 of fixed seat 321 is provided through on clamping 322 output shaft of motor, clamps screw rolling connection on 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 and be provided with pressure sensor on the inside of face, after syringe journal stirrup is fastened on installation cavity 311, clamping device 320 is used for will injection
The stack shell of device grips.
Be provided with movable block 300 close to switch 313, close to switch 313 positioned at mounting base 310 and clamping device 320 it
Between, the working face direction close to switch 313 is identical with the opening direction of U-shaped opening 312, and is directed toward 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 330 output shaft of lower piezoelectric machine and pushes turbine gear
331。
Push leading screw 400 to be located at the upside of movable block 300 and be rotatablely connected with movable block 300, push and set on leading screw 400
There is a screw gear 401, screw gear 401 is meshed cooperation with pushing turbine gear 331.
The upside of movable block 300 is provided with the guiding axis 410 parallel with pushing leading screw 400, and guiding axis 410 is provided at both ends with can
The upper limit position switch 411 and lower position switch 412 of adjusting, the end for pushing leading screw 400 and guiding axis 410 are provided with end plate 413,
End plate 413 and pushing leading screw 400 are rotatablely connected, and end plate 413 is fixedly connected with guiding axis 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 be touched with 110 phase of top plate.
Slide to be provided with leading screw 400 and guiding axis 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 pushing 400 screw rolling of leading screw, push sliding block 402
Closely it is slidably connected with guiding axis 410, is provided with horizontal compression bar 403 on sliding block 402 is pushed, control is provided with compression bar 403
Device 600 processed, compression bar 403 are provided with microswitch 404 towards 320 side of clamping device, 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 is overlapped in longitudinal direction.
Movable block can be in the pressure switches 503 of longitudinally adjust, pressure switches 503 by being additionally provided with supporting rod 200
Between 300 and base 130, the trigger unit of pressure switches 503 can be touched with 300 phase of movable block, when pressure switches 503 are movable
When block 300 triggers, the syringe needle in installation cavity 311 is inserted into chromatographic injection port.
Wherein base electromagnetic coil 131, close to switch 313, clamping motor 322, pressure sensor, lower piezoelectric machine 330, micro-
Dynamic switch 404, upper limit position switch 411, lower position switch 412, end plate switch 414, longitudinal motor 500 and pressure switches 503 divide
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, the application method of the present invention is additionally provided, is included the following steps：
Step 1：The installation of sampling device is fixed
Sampling device is placed near chromatographic injection port, adjusts the position of sampling device, makes dust plug 603 and color
The injection port of spectrometer overlaps, and fits closely, later on adsorbent equipment, i.e., controls base electromagnetic coil by controller 600
131 are powered, and base electromagnetic coil 131 produces magnetic field force, adsorbs on chromatographic shell, if 131 nothing of base electromagnetic coil
Method is adsorbed on chromatographic shell, then is mutually adsorbed using vacuum cup and chromatograph shell, reach the mesh of fixed sampling device
's.
Step 2：Initial preparation state
After sampling device installs fixed completion and is powered, sampling device is in the folder of holding state, i.e. clamping device 320
Hold pawl 325 and be in open configuration, push sliding block 402 and the trigger unit of upper limit position switch 411 is mutually touched, end plate switch 414
Trigger unit is touched with 110 phase of top plate, interior iron core 601 and 605 phase magnetic attraction attachment of lower magnet ring.
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
312 downward hanging of U-shaped opening, syringe cylinder is detected behind close to switch 313, and controller 600 controls clamping device 320 by cylinder
Body clamps, that is, clamps motor 322 and drive clamping leading screw 323 to rotate forward, clamping leading screw 323 drives clamping slider 324 inside
Lateral movement, connecting rod 326 drive gripper jaw 325 to be collapsed to centre, and the pressure sensor of the inner side of gripper jaw 325 detects clamping in real time
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 is completed to place and fixed.
Step 4：The retaining of syringe injection ram
After syringe fixes, i.e., after clamping motor 322 is stopped, controller 600 controls lower piezoelectric machine 330 is positive to turn
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 compression 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, controller 600 then controls longitudinal motor 500 to rotate forward, with longitudinal Vortex
The positive transmission of wheel gear 501 and longitudinal gear 502 on longitudinal rack 121, movable block 300 steadily move downward, movable block
After the trigger unit of 300 triggering pressure switches 503, controller 600 controls longitudinal motor 500 to be stopped, at this time, syringe
Plug is inserted into chromatographic injection port.
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 the sample introduction of the oil sample injecting chromatograph in syringe
In mouthful, after pushing the trigger unit that sliding block 402 triggers lower position switch 412, controller 600 controls lower piezoelectric machine 330 to stop work
Make.
Step 7：The extraction of syringe
After pushing the triggering lower position switch 412 of sliding block 402, 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, the steady movement 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 plate 110,
Controller 600 controls longitudinal motor 500 to be stopped, and at this time, the plug of syringe is extracted from chromatographic injection port.
Step 8：The release of syringe
After longitudinal motor 500 is stopped, controller 600 controls lower piezoelectric machine 330 to rotate 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 movements upwards, after the trigger unit of the triggering upper limit position switch 411 of sliding block 402 is pushed, under controller 600 controls
Medium-voltage Motor 330 is stopped, and while lower piezoelectric machine 330 rotates backward, controller 600 controls the folder in clamping device 320
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 conclusion only presently preferred embodiments of the present invention, is not used 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 change.The technical scope of this invention is not limited to the content on specification, all claimed ranges under this invention
Shape, construction, feature and the so-called equivalent changes and modifications of spirit, should all include with scope of the presently claimed invention.
Claims (5)
- A kind of 1. oil sample chromatography quantitative sampling device, it is characterised in that：Including the stent (100) for including top plate (110), side plate (120) and base (130) that cross section is Contraband shape, the side plate (120) medial surface is provided with the sliding slot and longitudinal rack (121) of longitudinal T-shaped, and the base (130) is in y-type structure, at the bottom Adsorbent equipment is provided with seat (130), cylindrical non-magnet material is vertically arranged between top plate (110) and base (130) The supporting rod (200) of composition,Sliding sleeve is equipped with movable block (300) and hollow pushing leading screw (400) on the supporting rod (200),It is provided with the side of the movable block (300) towards side plate (120) and the matched sliding block of the sliding slot, the movable block (300) can the longitudinal sliding motion in sliding slot 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), longitudinal Vortex wheel gear (501) is provided with longitudinal motor (500) output shaft, and a longitudinal gear (502) is fixed On movable block (300), it is described longitudinal direction 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 supporting rod (200),Mounting base (310) is provided with the movable block (300), longitudinally through U-shaped opening is provided with the mounting base (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 base (310) Lower section, after syringe journal stirrup is fastened on installation cavity (311), clamping device (320) is used to grip the stack shell of syringe,It is provided with the movable block (300) close to switch (313), it is described to be located at mounting base (310) and folder close to switch (313) Between holding device (320), the working face direction close to switch (313) is identical with the opening direction of U-shaped opening (312), and The central axis of U-shaped opening (312) is directed toward,Lower piezoelectric machine (330) is provided with the upside of the movable block (300), is provided with down on lower piezoelectric machine (330) output shaft Turbine gear (331) is pressed,The leading screw (400) that pushes is located at the upside of movable block (300) and is rotatablely connected with movable block (300),Screw gear (401) is formed on the pushing leading screw (400), the screw gear (401) is with pushing turbine gear (331) be meshed cooperation,The guiding axis (410) parallel with pushing leading screw (400), the guiding axis (410) are provided with the upside of the movable block (300) Adjustable upper limit position switch (411) and lower position switch (412) are provided at both ends with,The end of the pushing leading screw (400) and guiding axis (410) is provided with end plate (413), the end plate (413) and lower silk pressing Thick stick (400) is rotatablely connected, and the end plate (413) is fixedly connected with guiding axis (410), and the upper side of the end plate (413) is set There is end plate to switch (414), the trigger unit of the end plate switch (414) can mutually be touched with top plate (110),Slide to be provided with leading screw (400) and guiding axis (410) is pushed and push sliding block (402), the pushing sliding block (402) exists Moved between upper limit position switch (411) and lower position switch (412), the pushing sliding block (402) is with pushing leading screw (400) screw thread Connection is rolled, the pushing sliding block (402) is closely slidably connected with guiding axis (410),Horizontal compression bar (403) is provided with the pushing sliding block (402), controller is provided with the compression bar (403) (600),The compression 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) is overlapped in longitudinal direction,Being additionally provided with the supporting rod (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 for the syringe being fastened in installation cavity (311) is inserted Enter in chromatographic injection port,The close 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,Wherein, the clamping device (320) includes the fixed seat (321) being arranged on movable block (300), the fixed seat (321) dovetail groove of the horizontal symmetry axis centered on U-shaped opening (312) central axis is provided with, in the dovetail groove Slip is provided with symmetrical gripper jaw (325),Fixed seat (321) side is provided with clamping motor (322), is provided with and wears on described clamping motor (322) output shaft The clamping leading screw (323) of fixed seat (321) is crossed, screw rolling is connected with clamping slider (324) on the 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) be provided with pressure sensor on the inside of clamping face, the clamping motor (322) and pressure sensor respectively with controller (600) it is electrically connected.
- 2. 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 base electromagnetic coil (131) with armature in base (130), the base electromagnetic wire (131) are enclosed to be 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 the one or more groups of vacuum cups being arranged on the downside of base (130).
- 4. 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.
- 5. the application method of the oil sample chromatography quantitative sampling device as described in claim 1-4 is any is used, including it is as follows Step：Step 1：The installation of sampling device is fixedSampling device is placed near chromatographic injection port, adjusts the position of sampling device, makes dust plug (603) and chromatography The injection port of instrument overlaps, and fits closely, later on adsorbent equipment, i.e., controls base electromagnetic coil by controller (600) (131) it is powered, base electromagnetic coil (131) produces magnetic field force, adsorbs on chromatographic shell, if base electromagnetic coil (131) it can not adsorb on chromatographic shell, then mutually be adsorbed using vacuum cup and chromatograph shell, reach fixed sample introduction dress The purpose put；Step 2：Initial preparation stateAfter sampling device installs fixed completion and is powered, sampling device is in the clamping of holding state, i.e. clamping device (320) Pawl (325) is in open configuration, pushes sliding block (402) and the trigger unit of upper limit position switch (411) is mutually touched, end plate switch (414) trigger unit is mutually touched with top plate (110), interior iron core (601) and lower magnet ring (605) phase magnetic attraction attachment；Step 3：The placement and fixation of syringeAfter 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) downward hanging, syringe cylinder is detected behind close to switch (313), 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 Clamping slider (324) inside lateral movement, connecting rod (326) drive gripper jaw (325) to be collapsed to centre, on the inside of gripper jaw (325) Pressure sensor detect pressure of the gripper jaw (325) between injection sleeve in real time, after clamp pressure reaches certain value, Controller (600) control clamping motor (322) is stopped, and so far, syringe is completed to place and fixed；Step 4：The retaining of syringe injection ramAfter syringe fixes, i.e., after clamping motor (322) is stopped, controller (600) control lower piezoelectric machine (330) is positive Rotate, push turbine gear (331) and drive the screw gear (401) pushed 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 compression bar (403) After trigger unit is injected the injection ram triggering of device, controller (600) control lower piezoelectric machine (330) is stopped；Step 5：The insertion of syringeAfter 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) control longitudinal motor (500) stops Work, at this time, the plug of syringe are inserted into chromatographic injection port；Step 6：Oil sample sample introductionAfter longitudinal motor (500) is stopped, controller (600) control lower piezoelectric machine (330) rotates forward again, pushes sliding block (402) injection ram for moving downward and then pressing syringe moves downward, by the oil sample injecting chromatograph in syringe into In sample mouth, after the trigger unit for pushing sliding block (402) triggering lower position switch (412), controller (600) control lower piezoelectric machine (330) it is stopped；Step 7：The extraction of syringeAfter pushing sliding block (402) triggering lower position switch (412), controller (600) control longitudinal motor (500) rotates backward, As the reverse drive of longitudinal Vortex wheel gear (501) and longitudinal gear (502) on longitudinal rack (121), movable block (300) are flat Steady movement 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) control longitudinal motor (500) is stopped, and at this time, the plug of syringe is from chromatograph Injection port in extract；Step 8：The release of syringeAfter longitudinal motor (500) is stopped, controller (600) control lower piezoelectric machine (330) rotates 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 movement upwards is pushed, when the trigger unit for pushing sliding block (402) triggering upper limit position switch (411) Afterwards, controller (600) control lower piezoelectric machine (330) is stopped, while lower piezoelectric machine (330) rotates backward, controller (600) the clamping motor (322) in clamping device (320) is controlled to rotate backward, 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, and so far sampling device completes work, wait sample introduction next time.
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| CN107782585A (en) * | 2017-11-15 | 2018-03-09 | 广西电网有限责任公司南宁供电局 | Insulating oil intelligent vacuum acquisition system |
| CN110159800A (en) * | 2018-06-11 | 2019-08-23 | 芜湖美的厨卫电器制造有限公司 | Mixed water jacket, water mixing valve axis, water-mixing valve core, constant-temperature water mixing valve and water heater |
| CN109870331B (en) * | 2019-01-17 | 2021-08-17 | 中国辐射防护研究院 | Pretreatment device for measuring performance of radioactive cement solidified body sample |
| 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 |
| CN112816413B (en) * | 2021-01-06 | 2022-06-21 | 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 |
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| CN201075062Y (en) * | 2007-07-21 | 2008-06-18 | 冯俊博 | Automatic sampling device |
| CN203750217U (en) * | 2014-04-01 | 2014-08-06 | 北京润东仪器厂 | Automatic solid-phase extraction equipment |
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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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