CN103954640B - A kind of nuclear magnetic resonance spectrometer automatic sampler - Google Patents
A kind of nuclear magnetic resonance spectrometer automatic sampler Download PDFInfo
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- CN103954640B CN103954640B CN201410202592.5A CN201410202592A CN103954640B CN 103954640 B CN103954640 B CN 103954640B CN 201410202592 A CN201410202592 A CN 201410202592A CN 103954640 B CN103954640 B CN 103954640B
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Abstract
The present invention relates to a kind of nuclear magnetic resonance spectrometer automatic sampler, comprise support and sales kit (SK); Described sales kit (SK) comprises driving-chain, Timing Belt, gear train, outside guide groove, also comprises bottom deck assembly; Described bottom deck assembly comprises base plate, is semicircularly fixedly connected with pipe, semicircular mobile link pipe and slide block; Described support there is the connector of band O-ring seal, be fixedly connected with the sample feeding pipe being placed in magnetic field below connector, described support is also provided be flexibly connected with gear train direct current generator, for catch the parallel air gripper being fixedly connected with pipe, the push rod cylinder promoting mobile link pipe, the push rod cylinder being connected with taper push rod, bar-code scanner, for detecting the diffuse reflection sensor of the glass tube of load sample, the serial interface plug I being connected MCU control panel and fault alarm.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.
Description
Technical field
The present invention relates to nuclear magnetic resonance spectrometer, particularly relate to special automatic sampler when sample analyzed by a kind of nuclear magnetic resonance spectrometer.
Background technology
Nuclear magnetic resonance spectrometer is the magnetically analytical instrument of the variance analysis material utilizing different Elements Atom nulcear properties, is widely used in the structure determination of compound, the aspect such as quantitative test and zoological research.
Automatic sampler automaticity is high can save manpower and time in a large number, and also can reduce the error that manual operation produces, be utilize nuclear magnetic resonance spectrometer to analyze the requisite necessary instrument of sample in enormous quantities simultaneously.
Existing nuclear magnetic resonance spectrometer automatic sampler is mainly in the mode that mechanical arm captures, there are two types: a kind of is independent automatic sampler frame, and the driving-chain of a larger transmission space is installed on frame, the space which takies is comparatively large, and cost is also higher.
Another kind directly installs sales kit (SK) above magnet, and mechanical arm is arranged on sales kit (SK) inside, take up room so relatively little but to design and processing request higher, 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 cylindric chain link, its top is provided with breach, prevent air-flow from rotor is gone out chain link, 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 respectively by flange, each abutment ring has two square holes; In chain link other end You Shang ear and lower ear, upper ear and lower ear have two hooks to be connected with the square hole on contiguous gear unit respectively, there is pilot hole in lower ear, there is jogger hole in upper ear, the chain link wall that upper ear surrounds has a fenestella, and there be the barrier plate corresponding with fenestella in upper ear, has L shape slide block between fenestella and barrier plate, L shape slide block is connected with barrier plate by spring, and L shape slide block has stop bit salient point.When not arriving this unit sample introduction, spring makes the horizontal arm of L shape slide block protrude in chain link through fenestella, supports the rotor that sample is housed.Now stop bit salient point acts on along preventing L shape slide block from entering completely on fenestella, and another arm of L shape slide block is exposed in jogger hole simultaneously.When taking turns to this unit sample introduction, taper push rod inserts jogger hole, and force L-type slide block to exit fenestella, the rotor that sample is housed loses the support of L-type slide block.Described chain link outside surface also has bar code, is convenient to record sample, recognize and analyze the sample in any chain link easily and fast.
Above-mentioned gear unit passes through the connection of hook and square hole between any two, forms a driving-chain each other.What nuclear magnetic resonance spectrometer automatic sampler of the present invention related to is closed driving-chain, and because abutment ring can rotate freely around chain link, so driving-chain is free to change direction, driving-chain can be various shape, as square or circular.
Nuclear magnetic resonance spectrometer automatic sampler provided by the present invention, comprises support and sales kit (SK).Sales kit (SK), except comprising driving-chain recited above, Timing Belt, gear train, outside guide groove, also comprises bottom deck assembly.Described bottom deck assembly comprises base plate, is semicircularly fixedly connected with pipe, semicircular mobile link pipe and slide block.
Above-mentioned guide groove is fixed on base plate.When sales kit (SK) and support combination, the semicircle cambered surface boss on the connector in support fits tightly with the cylindrical being fixedly connected with pipe and positions sales kit (SK), and the parallel air gripper in support is fixed and is fixedly connected with pipe and is fixed sales kit (SK).Also have two sensors below base plate, detect the operating state of parallel air gripper, twin shaft cylinder respectively.Base plate also has an electric plug connector.
Described support is provided with the direct current generator be flexibly connected with gear train, the semicircle frame guide rail slided on support in sales kit (SK), for the push rod cylinder catching the parallel air gripper being fixedly connected with pipe, the push rod cylinder promoting mobile link pipe and be connected with taper push rod, bar-code scanner for detecting the numbering of load sample, and detects with or without the diffuse reflection sensor of sample hose and fault alarm.Also comprise the connector of band 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 internal diameter is identical with the internal diameter of chain link.
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 sample 3 steps, 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 (conveniently observes, spring and L shape slide block have been drawn in 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 process flow diagram 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 cylindric chain link 1, its top is provided with breach 2, prevent air-flow from rotor is gone out chain link, 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 respectively by flange, each abutment ring 4 has two square holes 5; You Shang ear 6 and lower ear 7 between chain link 1 upper and lower side, upper ear 6 and lower ear 7 have two hooks 8 to be connected with the square hole 5 on the abutment ring 4 of contiguous gear unit respectively, there is pilot hole 9 in lower ear 7, there is jogger hole 10 in upper ear 6, chain link 1 wall that upper ear 6 surrounds has a fenestella 11, there be the barrier plate 12 corresponding with fenestella 11 in upper ear 6, L shape slide block 13 is had between fenestella 11 and barrier plate 12, L shape slide block 13 is connected with barrier plate 12 by spring 14, and L shape slide block 13 horizontal arm has stop bit salient point 15.When not arriving this unit sample introduction, spring 14 makes the horizontal arm of L shape 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 along preventing L shape slide block 13 from entering completely on fenestella 11, and another arm of L shape slide block 13 is exposed in jogger hole 10 simultaneously.When taking turns to this unit sample introduction, taper push rod inserts jogger hole 10, and force L-type slide block 13 to exit fenestella, the rotor that sample is housed loses the support of L-type slide block 13.Described chain link 1 outside surface also has bar code, is convenient to record, recognize and analyze easily and fast the sample in any chain link 1 to sample.
Above-mentioned gear unit, between any two by the effect of hook 8 and square hole 5, forms a closed driving-chain.Because abutment ring 4 can rotate freely around chain link 1, so driving-chain is free to change direction.
Supply the guide groove component of above-mentioned driving-chain motion to comprise and be positioned at conplane first guide rail 16 and the second guide rail 17, the both sides of laminating driving-chain bottom abutment ring 4 respectively, also comprise the 3rd guide rail 18 and cover plate 19, the passage of composition driving-chain top abutment ring 4, described cover plate 19 also has diffuse reflection sensor bezel 20.On the first guide rail 16 and the second guide rail 17, be equipped with the sensor detecting chain link 1 pilot hole 9, second guide rail 17 is equipped with pinpoint position block 21 is carried out to chain link, 3rd guide rail 18 is also equipped with two sensors, respectively the operating state going out sample state and push rod cylinder of detection rotor.
Aforementioned drive chain of the present invention is in above-mentioned guide groove, and the band tooth 3 on chain link and Timing Belt 22 engage, and advance under the driving of Timing Belt 22.The synchronizing wheel 23 1 at Timing Belt 22 two ends is 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 be connected with the direct current generator on support is flexibly connected.Gear train 24 is by the power transmission of direct current generator to Timing Belt 22, and drive Timing Belt 22 to move around the synchronizing wheel 23 at two ends, Timing Belt 22 drives driving-chain to move.
Nuclear magnetic resonance spectrometer automatic sampler provided by the present invention, comprises support and sales kit (SK).
Sales kit (SK) is except above-mentioned driving-chain, and Timing Belt, gear train, outside guide groove, also comprises bottom deck assembly.Described bottom deck assembly comprises base plate 26, is semicircularly fixedly connected with pipe 27, semicircular mobile link pipe 28 and slide block 29, 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) slides on the slide rail of support by slide block 29.Base plate 26 is also provided with two sensors below, detects the operating state of parallel air gripper, twin shaft cylinder respectively.Base plate also having an electric plug connector II, for connecting the sensor in sales kit (SK), transmitting electric signal in sensor.
Aforesaid guide groove is fixed on base plate 26.
Support there is the connector 30 of band O-ring seal, for connecting the sample feeding pipe being placed in magnet, and relying 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 with the cylindrical being fixedly connected with pipe 28 and positions sales kit (SK).Described support is also provided be flexibly connected with gear train direct current generator, for catch the parallel air gripper 31 being fixedly connected with pipe 27, the push rod cylinder 32 promoting mobile link pipe 28, the push rod cylinder being connected with taper push rod 33, bar-code scanner, for detecting the diffuse reflection sensor 34 of the glass tube of load sample, the electric connector I being connected MCU control panel and fault alarm.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, slide block 29 bottom described sales kit (SK) 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 with the cylindrical being fixedly connected with pipe 27 and positions sales kit (SK), and the parallel air gripper 31 in support is fixed and is fixedly connected with pipe 27.The male splines 35 of the direct current generator connection that sales kit (SK) is fixed on rear described support is connected with the female spline 25 on gear train, and described electric connector I carries out being connected the electric signal transmitting sensor with electric connector II.
Connector 30 internal diameter that end face is equipped with O-ring seal is coaxial with the internal diameter being 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 end rotates, synchronizing wheel 23 engages with Timing Belt 22 and drives Timing Belt 22 to rotate, Timing Belt 22 engages with the band tooth 3 on chain link 1 thus drives driving-chain to rotate, driving-chain is along the orbit rotation of guide groove, when chain link 1 moves to the top being fixedly connected with pipe 27, sensor detects that pilot hole 9 direct current generator on this chain link 1 stops operating, the internal diameter of this chain link 1 is with to be fixedly connected with pipe 27 internal diameter identical and coaxial, bar-code scanner reads the bar code information on chain link 1, (sample is contained in glass test tube whether diffuse reflection sensor 20 detection rotor 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 then direct current generator is rotated further, have, push rod cylinder 32 stretches out, promote mobile link pipe 28 and be fixedly connected with pipe 27 and close up, on, align in lower surface, the recessed edge of mobile link pipe upper end holds 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 shape slide block 13 moves to outside chain link 1, rotor under the air-flow pressurized air of magnet inside (inject) effect from chain link 1 through being fixedly connected with pipe 27, connector 30 slowly falls along sample feeding pipe, nuclear-magnetism has tested the top that rear rotor rises to chain link 1 under air-flow (pressurized air of magnet inside) effect, whether sensor detection rotor rises to chain link 1 top, otherwise warning device is reported to the police, be, push rod cylinder of retracting successively, L shape slide block 13 resets under action from the spring 14.Rotor is fixed in chain link 1, retraction push rod cylinder 32, completes the sample introduction of a sample and goes out sample process.Sensor detects that push rod cylinder 32 transmits to MCU control panel after retracting, and control panel receives to direct current generator firing order after signal, and direct current generator rotates thus drives driving-chain to rotate, and then completes the analysis of subsequent sample according to flow process above.
Claims (6)
1. a gear unit, comprise cylindric chain link (1), its top is provided with breach (2), prevent air-flow from rotor is gone out chain link, 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 respectively by flange, each abutment ring (4) has two square holes (5), You Shang ear (6) and lower ear (7) between chain link (1) upper and lower side, upper ear (6) and lower ear (7) have two hooks (8) to be connected with the square hole (5) on the abutment ring (4) of contiguous gear unit respectively, lower ear (7) has pilot hole (9), there is jogger hole (10) in upper ear (6), chain link (1) wall that upper ear (6) surrounds has a fenestella (11), there be the barrier plate (12) corresponding with fenestella (11) in upper ear (6), L shape slide block (13) is had between fenestella (11) and barrier plate (12), L shape slide block (13) is connected with barrier plate (12) by spring (14), and the horizontal arm of L shape slide block (13) there is stop bit salient point (15).
2. gear unit described in claim 1 is between any two by linking up with the driving-chain connected to form of (8) and square hole (5).
3. driving-chain according to claim 2, is characterized in that, described driving-chain is closed driving-chain, 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 outside driving-chain according to claim 3, Timing Belt, also comprises gear train, guide groove and bottom deck assembly;
Described bottom deck assembly comprises base plate (26), is semicircularly fixedly connected with pipe (27), semicircular mobile link pipe (28) and slide block (29);
Described support there is the connector (30) of band O-ring seal, connector (30) is below fixedly connected with the sample feeding pipe being placed in magnetic field, described support is also provided be flexibly connected with gear train direct current generator, for catch be fixedly connected with the parallel air gripper (31) of managing (27), the push rod cylinder (32) promoting mobile link pipe (28), the push rod cylinder being connected with taper push rod (33), bar-code scanner, for detecting the diffuse reflection sensor (34) of the glass tube of load sample, the serial interface plug I being connected MCU control panel and fault alarm.
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 first guide rail (16) and the second guide rail (17), the both sides of laminating driving-chain bottom abutment ring (4) respectively, also comprise the 3rd guide rail (18) and cover plate (19), the passage of composition driving-chain top abutment ring (4), described cover plate (19) is upper also has diffuse reflection sensor bezel (20).
6. nuclear magnetic resonance spectrometer automatic sampler according to claim 5, it is characterized in that, band tooth (3) on described chain link (1) and Timing Belt (22) engagement, advance under the driving of Timing Belt (22), the synchronizing wheel (23) one at Timing Belt (22) two ends is 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) be connected with the 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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| CN201410202592.5A CN103954640B (en) | 2014-05-14 | 2014-05-14 | A kind of nuclear magnetic resonance spectrometer automatic sampler |
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| CN103954640B true CN103954640B (en) | 2016-04-13 |
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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 |
| CN104807848B (en) * | 2015-05-15 | 2017-02-01 | 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 |
| CN113970568A (en) * | 2021-10-14 | 2022-01-25 | 厦门大学 | Automatic sample changing device and method for nuclear magnetic resonance spectrometer |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| 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 |
| DE102007044016B4 (en) * | 2007-09-14 | 2010-12-16 | Bruker Biospin Gmbh | Sample exchange device with guided on meandering path samples, in particular for an NMR spectrometer, and nuclear magnetic resonance spectrometer |
| DE102008063703B3 (en) * | 2008-12-19 | 2010-06-17 | Bruker Biospin Ag | Automatic transport device for NMR test specimens, automatic transport device cryomagnet system, automatic transport device transport container and method for carrying an NMR measurement sample |
| 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 |
| CN103592326B (en) * | 2013-11-27 | 2016-03-09 | 苏州纽迈分析仪器股份有限公司 | For the nuclear magnetic resonance multichannel detection system of the quick sorting of oily seed |
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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. |