CN108344593A - A kind of grain sampler with rotating speed adjustable rotary sampling head - Google Patents
A kind of grain sampler with rotating speed adjustable rotary sampling head Download PDFInfo
- Publication number
- CN108344593A CN108344593A CN201810229223.3A CN201810229223A CN108344593A CN 108344593 A CN108344593 A CN 108344593A CN 201810229223 A CN201810229223 A CN 201810229223A CN 108344593 A CN108344593 A CN 108344593A
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- Prior art keywords
- sampling head
- sampling
- resistance
- capacitance
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/04—Devices for withdrawing samples in the solid state, e.g. by cutting
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N2001/1006—Dispersed solids
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N1/00—Sampling; Preparing specimens for investigation
- G01N1/02—Devices for withdrawing samples
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
- G01N2001/1418—Depression, aspiration
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- Life Sciences & Earth Sciences (AREA)
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Hydrology & Water Resources (AREA)
- Centrifugal Separators (AREA)
Abstract
The invention discloses a kind of grain samplers with rotating speed adjustable rotary sampling head, it is related to food storage field, it includes sampling storage room, the sampling storage room connection sampling delivery hose, the sampling hose connects probe tube, the probe tube lower end is provided with rotation sampling head, and the rotation sampling head is driven by sampling head motor, and the sampling motor connects microcontroller by alignment circuit.The present invention solves current grain sampler and is sampled operating difficulties, inflexible technical problem using downward push manually, using the rotation sampling head, rotating force makes probe tube be easier to be downwardly into grain heap and be sampled, sampling head motor speed is adjustable, different rotating speeds can be switched according to different grains-types, flexibility is strong.
Description
Technical field
The present invention relates to food storage fields, and in particular to a kind of grain sampler with rotating speed adjustable rotary sampling head.
Background technology
When we to grains, oil plant carry out Quality Detection when, in addition to skewer takes a certain number of representative samples
Outside product, divide take required representative test sample according to quantity, measure whether sample is sufficiently mixed, is to influence grain testing result
A key factor；The grains sample that skewer takes exactly is sufficiently mixed by now widely used grain sample divider,
A kind of uniformly point common detection instrument taken；Have the characteristics that simple in structure, easy to use, sample mixing is uniform, divide sample error small, extensively
It is general suitable for soybean, paddy, wheat, corn, etc. the mixing of particles edible oil material sample divide sample.Existing grain sampler is not provided with
Electric device leans on manpower that thief rod is inserted into grain and samples completely, and grain heap thickness is shallow still, if grain heap thickness is deep, up to 3 meters
It is then very difficult by the sampling of manpower inserted link when above, it is time-consuming and laborious；When motor being set driving probe tube rotation, then motor speed
It is excessive to damage grain, and it is directed to different types of sampling sample, corresponding rotating speed can not be adjusted, causes to sample ineffective
It is living.
Invention content
It is an object of the invention to：A kind of grain sampler with rotating speed adjustable rotary sampling head is provided, is solved at present
Grain sampler is sampled operating difficulties, inflexible technical problem using downward push manually.
The technical solution adopted by the present invention is as follows：
A kind of grain sampler with rotating speed adjustable rotary sampling head, including sampling storage room, the sampling storage room connect
Sample delivery hose is picked up, the sampling hose connects probe tube, and the probe tube lower end is provided with rotation sampling head, the rotation
Sampling head is driven by sampling head motor, and the sampling head motor connects microcontroller by alignment circuit.
Further, inner tube is arranged in the probe tube, said inner tube is hollow-core construction, and the fixation of said inner tube lower section is set
It is equipped with rotation sampling head, the sampling head motor, which is arranged, above said inner tube makes said inner tube be done under the drive of sampling head motor
Rotary motion.
Further, the section of the rotation sampling head is trapezoidal, and the rotation sampling head is made of hard bristle, described
It is provided with the air duct penetrated through with said inner tube on rotation sampling head, the grain of sampling is delivered to the sampling through air duct to be stored
Room.
Further, the alignment circuit includes filtering voltage regulation unit, trigger element and speed adjustment unit connected in sequence；
The filtering voltage regulation unit includes resistance R1, diode V8, capacitance C6 and voltage-stabiliser tube V9, and connection is as follows：Input electricity
Press 220V connection resistance R1, resistance R1 connection diode V8 cathodes, the diode V8 anodes capacitance C6 that is connected in parallel of connection with surely
Pressure pipe V9；
The trigger element includes resistance R5, resistance R4, resistance R3 and photo-coupler E1, the connection of mono- interfaces of photo-coupler E1
Resistance R3, two interfaces connect voltage-stabiliser tube V9 and capacitance C6, three interface connection+12V power supplys, four interfaces connection electricity after connecting resistance R4
Microcontroller pin PA2 is connected after hindering R5；
The adjusting unit includes inductance L1, resistance R2, thyristor V11, sampling head motor M, capacitance C3, capacitance C4 and electricity
Hold C5, after resistance R3 is in parallel with capacitance C5 connection thyristor V11, thyristor V11 also with the capacitance C4 and resistance R2 that are connected in series with
Parallel connection, power supply L phases are connected after capacitance C4 connection inductance L1, and thyristor V11 connects output, capacitance after being also connected with sampling head motor M
C3 is in parallel with sampling head motor M.
In conclusion by adopting the above-described technical solution, the beneficial effects of the invention are as follows：
1. using the rotation sampling head, rotating force makes probe tube be easier to be downwardly into grain heap and be sampled.
2. being arranged with inner tube in probe tube, inner tube is hollow-core construction, and inner tube is fixedly connected with rotation sampling head, rotation sampling
It is provided with air duct on head, grain to be sampled is enable to be transmitted in sampling storage room from air duct；Rotation sampling head takes rotation
The outer grain in rotation sampling head of sample head separates, and so that the grain in rotation sampling head is more easily transmitted under the action of negative pressure and takes
Sample storage room.
3. rotation sampling head is made of hard bristle, compared to metal coupon, during downsampled, avoid making grain
Food is impaired.
4. sampling head motor speed is adjustable, different rotating speeds can be switched according to different grains-types, flexibility is strong.
Description of the drawings
Examples of the present invention will be described by way of reference to the accompanying drawings, wherein：
Fig. 1 is the overall structure figure of the present invention；
Fig. 2 is the structure chart of rotational head in the present invention；
Fig. 3 is the sectional view of rotational head in the present invention；
Fig. 4 is the circuit diagram of the present invention；
Reference numeral：1- samples storage room, and 2- samples delivery hose, 3- probe tubes, 4- handles, 5- rotation sampling heads, 6-
Sampling head motor, 7- inner tubes, the air ducts 8-.
Specific implementation mode
All features disclosed in this specification or disclosed all methods or in the process the step of, in addition to mutually exclusive
Feature and/or step other than, can combine in any way.
1-4 elaborates to the present invention below in conjunction with the accompanying drawings.
Embodiment 1
A kind of grain sampler with rotating speed adjustable rotary sampling head, including sampling storage room 1, sampling storage room 1 connect
Sample delivery hose 2, sampling hose connect probe tube 3,3 lower end of probe tube be provided with rotation sampling head 5, rotation sampling head 5 by
Sampling head motor 6 drives, and sampling head motor 6 connects microcontroller by alignment circuit.
Inner tube 7 is arranged in probe tube 3, inner tube 7 is hollow-core construction, and 7 lower section of inner tube is fixedly installed rotation sampling head 5,
7 top setting sampling head motor 6 of inner tube makes inner tube 7 rotate under the drive of sampling head motor 6.
The section for rotating sampling head 5 is trapezoidal, and rotation sampling head 5 is made of hard bristle, is rotated and is provided on sampling head 5
The grain of sampling is delivered to sampling storage room 1 by the air duct 8 penetrated through with inner tube 7 through air duct 8.
Sampling head motor 6 drives the rotation rotation of sampling head 5 to go deep into grain, the dispersible sampling channel circumference of hard bristle
Sample reduces and declines resistance, and sample is passed since the wind-force of pressure difference and air-introduced machine that rotation generates is inhaled into air duct 8 via air duct 8
It transports to sampling locker room 1 and completes sampling, motor speed is controlled according to alignment circuit, realize that different samples use different rotating speeds, carry
The practicability of high sampler and flexibility.
Embodiment 2
Alignment circuit includes filtering voltage regulation unit, trigger element and speed adjustment unit connected in sequence, filtering voltage regulation unit packet
Resistance R1, diode V8, capacitance C6 and voltage-stabiliser tube V9 are included, connection is as follows：Input voltage 220V connection resistance R1, resistance R1 connections
Diode V8 cathodes, the capacitance C6 and voltage-stabiliser tube V9 that the connection of diode V8 anodes is connected in parallel；Trigger element includes resistance R5, electricity
It hinders R4, resistance R3 and mono- interface of photo-coupler E1, photo-coupler E1 and connects resistance R3, voltage stabilizing is connected after two interfaces connection resistance R4
Pipe V9 and capacitance C6, three interface connection+12V power supplys, four interfaces connect connection microcontroller pin PA2 after resistance R5；Adjust unit
Including inductance L1, resistance R2, thyristor V11, sampling head motor M, capacitance C3, capacitance C4 and capacitance C5, resistance R3 and capacitance C5
Thyristor V11 is connected after parallel connection, thyristor V11 is also in parallel with the capacitance C4 and resistance R2 being connected in series with, capacitance C4 connection inductance
Power supply L phases are connected after L1, thyristor V11 connects output after being also connected with sampling head motor M, and capacitance C3 is in parallel with sampling head motor M.
Microcontroller realizes speed governing using STM32 series, by exporting different instructions.
Operation principle：Resistance R1 current limlitings divide；Diode V8 rectifications；Polar capacitor C6 filtering；Zener diode V9 voltage stabilizings,
Resistance R5, R4, R9 current limliting divides, and photoelectrical coupler E1 plays signal transmission.Thyristor V11 controls on-off action；Sampling head
Motor M drives load operation；Resistance R2 and capacitance C4 constitutes rc protection circuit, protection thyristor V11；Capacitance C3, load are
Wind turbine phase-splitting starting；Inductance L1 filter actions.220V voltages obtain 12V DC later by halfwave rectifier, filtering and voltage stabilizing, are
Trigger element is powered；Zero cross signal is sent to tetra- interfaces of photo-coupler E1 by microcontroller, and zero cross fired letter is generated by optical coupling
Number supply thyristor V11, be allowed to controlled conducting；Once thyristor V11 is connected, then 220V power supplys pass through sampling head motor M, sampling
The M operatings of head motor；Microcontroller sends out the different pulse signal control thyristor V11 conductings of duty ratio and the time scale closed not
Together, thus by the voltage effective value of motor difference, to obtain it is high, in, weak, micro- four kinds of rotating speeds.Microcontroller can be according to defeated
Enter the control that device carries out different rotating speeds, shifting switch or multiple buttons may be used in input unit.
Embodiment 3
Alignment circuit further includes display screen, and the display screen uses TFT color screen, realizes display or the input speed governing of rotating speed
Demand realizes that touch screen speed governing and rotating speed are shown, improves practicability and the intelligence of sampler.
Claims (4)
1. a kind of grain sampler with rotating speed adjustable rotary sampling head, including sampling storage room (1), the sampling storage room
(1) connection sampling delivery hose (2), the sampling hose connection probe tube (3), it is characterised in that：Probe tube (3) lower end
It is provided with rotation sampling head (5), the rotation sampling head (5) is driven by sampling head motor (6), and the sampling head motor (6) is logical
Cross alignment circuit connection microcontroller.
2. a kind of grain sampler with rotating speed adjustable rotary sampling head according to claim 1, which is characterized in that described
Inner tube (7) is arranged in probe tube (3), said inner tube (7) is hollow-core construction, and rotation is fixedly installed below said inner tube (7)
Sampling head (5), the sampling head motor (6), which is arranged, in said inner tube (7) top makes said inner tube (7) in sampling head motor (6)
It rotates under drive.
3. a kind of grain sampler with rotating speed adjustable rotary sampling head according to claim 2, which is characterized in that described
It is trapezoidal to rotate the section of sampling head (5), and the rotation sampling head (5) is made of hard bristle, on the rotation sampling head (5)
It is provided with the air duct (8) with said inner tube (7) perforation, the grain of sampling is delivered to the sampling storage room through air duct (8)
(1)。
4. a kind of grain sampler with rotating speed adjustable rotary sampling head according to claim 1, which is characterized in that described
Alignment circuit includes filtering voltage regulation unit, trigger element and speed adjustment unit connected in sequence；
The filtering voltage regulation unit includes resistance R1, diode V8, capacitance C6 and voltage-stabiliser tube V9, and connection is as follows：Input voltage
220V connection resistance R1, resistance R1 connection diode V8 cathodes, the capacitance C6 and voltage stabilizing that the connection of diode V8 anodes is connected in parallel
Pipe V9；
The trigger element includes resistance R5, resistance R4, resistance R3 and photo-coupler E1, and mono- interfaces of photo-coupler E1 connect resistance
R3, two interfaces connect voltage-stabiliser tube V9 and capacitance C6, three interface connection+12V power supplys after connecting resistance R4, and four interfaces connect resistance R5
Connection microcontroller pin PA2 afterwards；
The adjusting unit includes inductance L1, resistance R2, thyristor V11, sampling head motor M, capacitance C3, capacitance C4 and capacitance
Connect thyristor V11 after C5, resistance R3 are in parallel with capacitance C5, thyristor V11 also with the capacitance C4 and resistance R2 that are connected in series with simultaneously
Join, power supply L phases are connected after capacitance C4 connection inductance L1, thyristor V11 connects output, capacitance C3 after being also connected with sampling head motor M
It is in parallel with sampling head motor M.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229223.3A CN108344593A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler with rotating speed adjustable rotary sampling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810229223.3A CN108344593A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler with rotating speed adjustable rotary sampling head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108344593A true CN108344593A (en) | 2018-07-31 |
Family
ID=62956756
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810229223.3A Withdrawn CN108344593A (en) | 2018-03-20 | 2018-03-20 | A kind of grain sampler with rotating speed adjustable rotary sampling head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108344593A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557098A (en) * | 2020-12-03 | 2021-03-26 | 丰城市玉华山富硒高山茶业有限公司 | Acceptance device for grain purchase |
-
2018
- 2018-03-20 CN CN201810229223.3A patent/CN108344593A/en not_active Withdrawn
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112557098A (en) * | 2020-12-03 | 2021-03-26 | 丰城市玉华山富硒高山茶业有限公司 | Acceptance device for grain purchase |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20180731 |
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| WW01 | Invention patent application withdrawn after publication |