CN103954640A - Automatic sampler of nuclear magnetic resonance spectrometer - Google Patents
Automatic sampler of nuclear magnetic resonance spectrometer Download PDFInfo
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- CN103954640A CN103954640A CN201410202592.5A CN201410202592A CN103954640A CN 103954640 A CN103954640 A CN 103954640A CN 201410202592 A CN201410202592 A CN 201410202592A CN 103954640 A CN103954640 A CN 103954640A
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- chain
- driving
- pipe
- automatic sampler
- chain link
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Abstract
The invention relates to an automatic sampler of a nuclear magnetic resonance spectrometer. The automatic sampler comprises an engine base and a sample case; the sample case comprises a transmission chain, a synchronous belt, a transmission mechanism, a guide groove and a backplane component; the backplane component comprises a backplane, a semicircle fixed connection pipe, a semicircle mobile connection pipe and a slide block; a connector with a seal ring is arranged on the engine base; a sample inlet pipe placed in the magnet field is fixedly connected under the connector; a direct current motor movably connected with the transmission mechanism, a parallel air claw for catching the fixed connection pipe, a push rod cylinder for pushing the mobile connection pipe, a plunger cylinder connected with a tapered plunger, a barcode scanner, a diffuse reflection sensor for detecting a glass pipe of a loaded sample, a serial port plug I connected with an MCU control board, and a fault alarm are installed on the frame. The automatic sampler of the nuclear magnetic resonance spectrometer has small volume, low cost, convenience in installation, high degree of automation, and is convenient, safe and reliable to control.
Description
Technical field
The present invention relates to nuclear magnetic resonance spectrometer, the automatic sampler of special use while particularly relating to a kind of nuclear magnetic resonance spectrometer analytic sample.
Background technology
Nuclear magnetic resonance spectrometer is the magnetics formula analytical instrument of utilizing the variance analysis material of different pantogen daughter nucleus character, is widely used in the structure determination of compound, the aspects such as quantitative test and zoological research.
Automatic sampler automaticity is high can save manpower and time in a large number, also can reduce the error that manual operation produces simultaneously, is to utilize the requisite necessary instrument of nuclear magnetic resonance spectrometer analytic sample in enormous quantities.
Existing nuclear magnetic resonance spectrometer automatic sampler is mainly the mode capturing with mechanical arm, there are two types: a kind of is independent automatic sampler frame, and the driving-chain in a larger transmission space is installed on frame, and the space which takies is larger, and cost is also higher.
Another kind is directly installed sales kit (SK) above magnet, and mechanical arm is arranged on sales kit (SK) inside, takes up room so relatively little but higher to design and processing request, and cost is higher.
Summary of the invention
Technical matters to be solved by this invention is to provide the nuclear magnetic resonance spectrometer automatic sampler that a kind of volume is little, cost is low.
First the present invention provides a kind of gear unit, comprise chain link cylindraceous, its top is provided with breach, prevent that air-flow from going out chain link by rotor, there is the band tooth with Timing Belt engagement the both sides of chain link outside surface, chain link upper and lower side is flexibly connected with abutment ring with the cooperation of groove by flange respectively, has two square holes on each abutment ring; In He Xia ear of chain link other end You Shang ear, He Xia ear of upper ear has respectively two hooks to be connected with the square hole on contiguous gear unit, there is pilot hole in lower ear, there is jogger hole in upper ear, on the chain link wall that upper ear surrounds, have a fenestella, there be the barrier plate corresponding with fenestella in upper ear, has L shaped slide block between fenestella and barrier plate, L shaped slide block is connected with barrier plate by spring, and has stop bit salient point on L shaped slide block.While not arriving this unit sample introduction, spring makes the horizontal arm of L shaped slide block protrude in chain link through fenestella, supports the rotor that sample is housed.Now stop bit salient point acts on edge on fenestella and prevents that L shaped slide block from entering completely, and another arm of L shaped slide block is exposed in jogger hole simultaneously.While taking turns to this unit sample introduction, taper push rod inserts jogger hole, forces L-type slide block to exit fenestella, and the rotor that sample is housed loses the support of L-type slide block.On described chain link outside surface, also have bar code, be convenient to sample to record, recognize and analyze easily and fast the sample in any chain link.
Above-mentioned gear unit by the connection of hook and square hole, forms a driving-chain between any two each other.What nuclear magnetic resonance spectrometer automatic sampler of the present invention related to is the driving-chain of sealing, and because abutment ring can rotate freely around chain link, so driving-chain is free to change direction, driving-chain can be various shapes, as square or circular.
Nuclear magnetic resonance spectrometer automatic sampler provided by the present invention, comprises support and sales kit (SK).Sales kit (SK) is except comprising driving-chain recited above, Timing Belt, and gear train, outside guide groove, also comprises bottom deck assembly.Described bottom deck assembly comprises base plate, semicircular pipe, semicircular mobile link pipe and the slide block of being fixedly connected with.
Above-mentioned guide groove is fixed on base plate.During the combination of sales kit (SK) and support, the semicircle cambered surface boss on the connector in support fits tightly sales kit (SK) is positioned with the cylindrical that is fixedly connected with pipe, and the parallel air gripper in support is fixed and is fixedly connected with pipe sales kit (SK) is fixed.Below base plate, also have two sensors, detect respectively the operating state of parallel air gripper, twin shaft cylinder.On base plate, also has an electric plug connector.
The direct current generator being flexibly connected with gear train, the semicircle frame guide rail sliding on support in sales kit (SK), the parallel air gripper that is fixedly connected with pipe for catching are installed on described support, promote the push rod cylinder of mobile link pipe and are connected with the push rod cylinder of taper push rod, bar-code scanner is for detection of the numbering of load sample, and detection has or not diffuse reflection sensor and the fault alarm of sample hose.Also comprise the connector with O-ring seal, connector is provided with semicircle cambered surface boss, is fixedly placed in the sample feeding pipe of magnet below it.When support and sales kit (SK) combination, connector is connected with the pipe that is fixedly connected with on base plate.Mobile link pipe be fixedly connected with pipe be combined just in time form one complete cylindrical, and the internal diameter of internal diameter and chain link is identical.
Circuit part of the present invention comprises MCU control panel, motor, cylinder and solenoid valve, bar-code scanner and various photoelectric sensor.The automatic sampler course of work comprises system initialization, sample feeding, and sample goes out 3 steps of sample, and process flow diagram is as Fig. 9 to Figure 11.
Nuclear magnetic resonance spectrometer automatic sampler provided by the present invention, volume is little, cost is low, easy for installation, automaticity is high, control is convenient, safe and reliable.
Accompanying drawing explanation
Fig. 1 is nuclear magnetic resonance spectrometer automatic sampler overall appearance figure of the present invention.
Fig. 2 is stand structure schematic diagram in automatic sampler of the present invention.
Fig. 3 is gear train structural representation in automatic sampler of the present invention.
Fig. 4 is chain link structural representation in automatic sampler of the present invention (observes for convenient, spring and L shaped slide block have been drawn in to the outside of barrier plate).
Fig. 5 is driving-chain structural representation in automatic sampler of the present invention.
Fig. 6 is bottom deck assembly structural representation in automatic sampler of the present invention.
Fig. 7 is mobile link tubular construction schematic diagram in automatic sampler of the present invention.
Fig. 8 is guide barrel construction schematic diagram in automatic sampler of the present invention.
Fig. 9 is automatic sampler system initialization process flow diagram flow chart of the present invention.
Figure 10 is automatic sampler sample introduction process flow diagram flow chart of the present invention.
Figure 11 is that automatic sampler of the present invention goes out sample process flow diagram flow chart.
Embodiment
A kind of gear unit, comprise chain link 1 cylindraceous, its top is provided with breach 2, prevent that air-flow from going out chain link by rotor, there is the band tooth 3 with Timing Belt engagement the both sides of chain link 1 outside surface, chain link 1 upper and lower side is flexibly connected with abutment ring 4 with the cooperation of groove by flange respectively, has two square holes 5 on each abutment ring 4; 6 He Xia ears 7 of You Shang ear between chain link 1 upper and lower side, 6 He Xia ears 7 of upper ear have respectively two hooks 8 to be connected with the square hole 5 being close on the abutment ring 4 of gear unit, there is pilot hole 9 in lower ear 7, there is jogger hole 10 in upper ear 6, on chain link 1 wall that upper ear 6 surrounds, have a fenestella 11, there be the barrier plate corresponding with fenestella 11 12 in upper ear 6, between fenestella 11 and barrier plate 12, there is L shaped slide block 13, L shaped slide block 13 is connected with barrier plate 12 by spring 14, and has stop bit salient point 15 on L shaped slide block 13 horizontal arms.While not arriving this unit sample introduction, spring 14 makes the horizontal arm of L shaped slide block 13 protrude in chain link 1 through fenestella 11, supports the rotor that sample is housed.Now stop bit salient point 15 acts on edge on fenestella 11 and prevents that L shaped slide block 13 from entering completely, and another arm of L shaped slide block 13 is exposed in jogger hole 10 simultaneously.While taking turns to this unit sample introduction, taper push rod inserts jogger hole 10, forces L-type slide block 13 to exit fenestella, and the rotor that sample is housed loses the support of L-type slide block 13.On described chain link 1 outside surface, also have bar code, be convenient to sample to record, recognize and analyze easily and fast the sample in any chain link 1.
Above-mentioned gear unit, between any two by the effect of hook 8 and square hole 5, forms the driving-chain of a sealing.Because abutment ring 4 can rotate freely around chain link 1, so driving-chain is free to change direction.
For the guide groove component of above-mentioned driving-chain motion, comprise and be positioned at conplane the first guide rail 16 and the second guide rail 17, fit the respectively both sides of driving-chain bottom abutment ring 4, also comprise the 3rd guide rail 18 and cover plate 19, the passage that forms driving-chain top abutment ring 4, also has diffuse reflection sensor bezel 20 on described cover plate 19.On the first guide rail 16 and the second guide rail 17, be equipped with the sensor that detects chain link 1 pilot hole 9, on the second guide rail 17, be equipped with chain link is carried out to pinpoint position block 21, two sensors are also housed on the 3rd guide rail 18, respectively the operating state that goes out sample state and push rod cylinder of detection rotor.
The aforementioned driving-chain of the present invention is in above-mentioned guide groove, and the band tooth 3 on chain link and Timing Belt 22 engagements are advanced under the driving of Timing Belt 22.23 1 of the synchronizing wheels at Timing Belt 22 two ends are connected and fixed on the second guide rail 17, and another is connected with gear train 24, and the other end of gear train 24 has female spline 25, and the male splines 35 being connected with direct current generator on support is flexibly connected.Gear train 24 to Timing Belt 22, drives Timing Belt 22 around synchronizing wheel 23 motions at two ends the transmission of power of direct current generator, and Timing Belt 22 drives driving-chain motion.
Nuclear magnetic resonance spectrometer automatic sampler provided by the present invention, comprises support and sales kit (SK).
Sales kit (SK) removes above-mentioned driving-chain, Timing Belt, and gear train, outside guide groove, also comprises bottom deck assembly.Described bottom deck assembly comprises base plate 26, semicircular pipe 27, semicircular mobile link pipe 28 and the slide block 29 of being fixedly connected with, and described mobile link pipe 28 is installed on slide track component, can move.Mobile link pipe 28 be fixedly connected with pipe 27 be combined into one complete cylindrical, and internal diameter is identical with the internal diameter of chain link 1.Sales kit (SK) can slide by slide block 29 on the slide rail of support.Base plate 26 is also provided with two sensors below, detects respectively the operating state of parallel air gripper, twin shaft cylinder.On base plate, also have an electric plug connector II, for connecting the sensor in sales kit (SK), transmit electric signal in sensor.
Aforesaid guide groove is fixed on base plate 26.
On support, there is the connector 30 with O-ring seal, for connecting the sample feeding pipe that is placed in magnet, and rely on O-ring seal to make both being connected to form airtight.When support and sales kit (SK) combination, the semicircle cambered surface on the connector 30 in support fits tightly sales kit (SK) is positioned with the cylindrical that is fixedly connected with pipe 28.The direct current generator being flexibly connected with gear train, the parallel air gripper 31 that is fixedly connected with pipe 27 for catching, the push rod cylinder 32 that promotes mobile link pipe 28, the push rod cylinder that is connected with taper push rod 33, bar-code scanner are also installed on described support, for detection of the diffuse reflection sensor 34 of the glass tube of load sample, be connected electric connector I and the fault alarm of MCU control panel.When sales kit (SK) and support combination, the parallel air gripper 31 in support is fixed and is fixedly connected with pipe 27.
Introduce the nuclear magnetic resonance spectrometer automatic sampler course of work of the present invention below.
Sales kit (SK) is arranged on support, the slide block 29 of described sales kit (SK) bottom coordinates with the slide rail on support, sales kit (SK) slides to support under the effect of external force, semicircle cambered surface on described connector 30 fits tightly sales kit (SK) is positioned with the cylindrical that is fixedly connected with pipe 27, and the parallel air gripper 31 in support is fixed and is fixedly connected with pipe 27.The male splines 35 that direct current generator after sales kit (SK) is fixing on described support connects is connected with the female spline 25 on gear train, and described electric connector I is connected with electric connector II the electric signal that transmits sensor.
Connector 30 internal diameters that end face is equipped with O-ring seal are coaxial with the internal diameter that is fixedly connected with pipe 27, MCU control panel sends instructions and drives direct current generator to start to rotate, in the power of direct current generator passes through, male splines passes to gear train 24, the synchronizing wheel 23 of drive transmission device 24 other ends rotates, synchronizing wheel 23 drives Timing Belt 22 to rotate with Timing Belt 22 engagements, thereby Timing Belt 22 drives driving-chain to rotate with band tooth 3 engagements on chain link 1, driving-chain is along the orbit rotation of guide groove, pilot hole 9 direct current generators that sensor detects on this chain link 1 when chain link 1 moves to the top that is fixedly connected with pipe 27 stop operating, the internal diameter of this chain link 1 be fixedly connected with pipe 27 internal diameters identical and coaxial, bar-code scanner reads the bar code information on chain link 1, (sample is contained in glass test tube on diffuse reflection sensor 20 detection rotors, whether to have glass test tube, glass test tube inserts in the center pit of rotor, and under the effect of air-flow, pass in and out magnet with rotor), nothing direct current generator is rotated further, there is push rod cylinder 32 to stretch out, promoting mobile link pipe 28 manages 27 and closes up with being fixedly connected with, on, lower surface alignment, the recessed edge of mobile link pipe upper end is held chain link 1 bottom abutment ring 4 tightly, the recessed edge of mobile link pipe lower end is held tightly and is fixedly connected with pipe 27, push rod cylinder promotes taper push rod and stretches out, insert in the jogger hole 10 of chain link 1, L shaped slide block 13 moves to outside chain link 1, rotor starts through being fixedly connected with pipe 27 from chain link 1 under air-flow (injecting the pressurized air of magnet inside) effect, connector 30 slowly falls along sample feeding pipe, nuclear-magnetism has been tested rear rotor and under air-flow (pressurized air of magnet inside) effect, has been risen to the top of chain link 1, whether sensor detection rotor rises to chain link 1 top, otherwise warning device is reported to the police, it is the push rod cylinder of retracting successively, L shaped slide block 13 resets under the effect of spring 14.Rotor is fixed in chain link 1, and retraction push rod cylinder 32 completes the sample introduction of a sample and goes out sample process.Sensor detects after push rod cylinder 32 is retracted and transmits to MCU control panel, and control panel receives after signal to direct current generator firing order, thereby direct current generator rotates and drives driving-chain to rotate, and then according to flow process above, completes the analysis of subsequent sample.
Claims (6)
1. a gear unit, comprise chain link cylindraceous (1), its top is provided with breach (2), prevent that air-flow from going out chain link by rotor, there is the band tooth (3) with Timing Belt engagement the both sides of chain link (1) outside surface, chain link (1) upper and lower side is flexibly connected with abutment ring (4) with the cooperation of groove by flange respectively, has two square holes (5) on each abutment ring (4), He Xia ear of You Shang ear (6) (7) between chain link (1) upper and lower side, He Xia ear of upper ear (6) (7) has respectively the square hole (5) on the abutment ring (4) of two hooks (8) and contiguous gear unit to be connected, there is pilot hole (9) in lower ear (7), there is jogger hole (10) in upper ear (6), on chain link (1) wall that upper ear (6) surrounds, have a fenestella (11), there be the barrier plate (12) corresponding with fenestella (11) in upper ear (6), between fenestella (11) and barrier plate (12), there is L shaped slide block (13), L shaped slide block (13) is connected with barrier plate (12) by spring (14), and on the horizontal arm of L shaped slide block (13), there is stop bit salient point (15).
Described in claim 1 gear unit between any two by the driving-chain connecting to form of hook (8) and square hole (5).
3. driving-chain according to claim 2, is characterized in that, described driving-chain is the driving-chain of sealing, and the shape of driving-chain is circular or square.
4. a nuclear magnetic resonance spectrometer automatic sampler, comprises support and sales kit (SK); Described sales kit (SK) comprises driving-chain claimed in claim 3, Timing Belt, and gear train, outside guide groove, also comprises bottom deck assembly;
Described bottom deck assembly comprises base plate (26), semicircular pipe (27), semicircular mobile link pipe (28) and the slide block (29) of being fixedly connected with;
On described support, there is the connector (30) with O-ring seal, connector (30) is fixedly connected with the sample feeding pipe that is placed in magnetic field below, the direct current generator being flexibly connected with gear train, the parallel air gripper (31) that is fixedly connected with pipe (27) for catching, the push rod cylinder (32) of promotion mobile link pipe (28), the push rod cylinder that is connected with taper push rod (33), bar-code scanner are also installed on described support, for detection of the diffuse reflection sensor (34) of the glass tube of load sample, be connected serial interface plug I and the fault alarm of MCU control panel.
5. nuclear magnetic resonance spectrometer automatic sampler according to claim 4, it is characterized in that, described guide groove comprises and is positioned at conplane the first guide rail (16) and the second guide rail (17), fit the respectively both sides of driving-chain bottom abutment ring (4), also comprise the 3rd guide rail (18) and cover plate (19), the passage that forms driving-chain top abutment ring (4), the upper diffuse reflection sensor bezel (20) in addition of described cover plate (19).
6. nuclear magnetic resonance spectrometer automatic sampler according to claim 4, it is characterized in that, band tooth (3) on described chain link (1) and Timing Belt (22) engagement, under the driving of Timing Belt (22), advance, (23) one of the synchronizing wheels at Timing Belt (22) two ends are connected and fixed on the second guide rail (17), another is connected with gear train (24), and the other end of gear train (24) has female spline (25), and the male splines (35) being connected with direct current generator on support is flexibly connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410202592.5A CN103954640B (en) | 2014-05-14 | 2014-05-14 | A kind of nuclear magnetic resonance spectrometer automatic sampler |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201410202592.5A CN103954640B (en) | 2014-05-14 | 2014-05-14 | A kind of nuclear magnetic resonance spectrometer automatic sampler |
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| CN103954640A true CN103954640A (en) | 2014-07-30 |
| CN103954640B CN103954640B (en) | 2016-04-13 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104458787A (en) * | 2014-12-26 | 2015-03-25 | 苏州露宇电子科技有限公司 | Novel nuclear magnetic resonance analysis meter sliding table |
| CN104807848A (en) * | 2015-05-15 | 2015-07-29 | 中国科学院武汉物理与数学研究所 | Device and method for positioning and sample feeding of low-field magnetism resonance system |
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| CN202735240U (en) * | 2012-06-29 | 2013-02-13 | 深圳市新产业生物医学工程股份有限公司 | Caterpillar feeding device applied to inspection equipment in chemiluminiscence field |
| CN103592326A (en) * | 2013-11-27 | 2014-02-19 | 苏州纽迈电子科技有限公司 | Nuclear magnetic resonance multichannel detection system used for rapidly sorting oil-containing seeds |
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2014
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Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4088944A (en) * | 1976-10-04 | 1978-05-09 | Varian Associates, Inc. | NMR Spectrometer employing self centering turbine |
| US5146166A (en) * | 1990-08-06 | 1992-09-08 | Chemagnetics, Inc. | Method and apparatus for enhancing sample analysis rate in magnetic resonance spectroscopy |
| US20090072830A1 (en) * | 2007-09-14 | 2009-03-19 | Bruker Biospin Gmbh | Sample exchange device having a sample receptacle guided through a meandering path, in particular for an NMR spectrometer |
| EP2199816A2 (en) * | 2008-12-19 | 2010-06-23 | Bruker BioSpin AG | Automatic transport device for NMR measuring samples, cryomagnetic system with automatic transport device, transport container for automatic transport device and method for transporting a NMR measuring sample |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104458787A (en) * | 2014-12-26 | 2015-03-25 | 苏州露宇电子科技有限公司 | Novel nuclear magnetic resonance analysis meter sliding table |
| CN104807848A (en) * | 2015-05-15 | 2015-07-29 | 中国科学院武汉物理与数学研究所 | Device and method for positioning and sample feeding of low-field magnetism resonance system |
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| CN103954640B (en) | 2016-04-13 |
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Address after: 430075, No. seven, No. 128, East Lake hi tech Development Zone, Wuhan, Hubei, Optics Valley Patentee after: WUHAN ZHONGKE NIUJIN WAVE SPECTRUM TECHNOLOGY Co.,Ltd. Address before: 430075, No. seven, 128 Optics Valley Road, East Lake New Technology Development Zone, Hubei, Wuhan Patentee before: WUHAN ZHONGKE MR TECHNOLOGY Co.,Ltd. |