CN201464320U - Grain volume weight measuring instrument - Google Patents
Grain volume weight measuring instrument Download PDFInfo
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- CN201464320U CN201464320U CN2009200939090U CN200920093909U CN201464320U CN 201464320 U CN201464320 U CN 201464320U CN 2009200939090 U CN2009200939090 U CN 2009200939090U CN 200920093909 U CN200920093909 U CN 200920093909U CN 201464320 U CN201464320 U CN 201464320U
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Abstract
The utility model relates to a grain volume weight measuring instrument, which comprises a data processing device, a balance, a dish box, a water channel, a sample weighing dish, a frame and a grain separating screen. A data processing device for data acquisition and data processing is arranged on one side of the frame. The balance for weighing the dish box and a sample is arranged on the top of the frame. A lower hook is arranged below the balance. The water channel filled with water is arranged below the frame. The utility model has the advantages that the measurement is not affected by factors such as temperature, moisture, grain size, free flowability, hole fineness and the like, the detection accuracy is high, the errors are fewer, the repeatability and the stability are good, the cost is low, the operation is convenient and the like.
Description
Technical field
The utility model relates to a kind of fields of measurement of grain unit weight, a kind of specifically grain unit weight measuring instrument.
Background technology
At national food quality standard GB1353 in---2009 and GB1351---2009, stipulated that the grade of corn and wheat determines with unit weight, its objective is the inherent quality of reaction corn and wheat, its essence is measured its density exactly, unit weight is the quality of grain seed in unit volume, represents with grams per liter (g/L).Grain unit weight is the overall target of quality such as reflection grain seed size, shape, regularity, uniformity coefficient, quality, the ventral groove depth, endosperm quality.In the grain standard of many developed countries, all unit weight is classified as an important indicator in the world.China's grain department is also with the important parameter of unit weight as the evaluation grain quality.
Cereal unit weight detects and generally adopts liter weighing tester in the prior art, owing to adopt existing liter weighing tester mensuration corn and wheat value of bulk density to be subjected to disturbing factor a lot (as moisture, seed size, free flowability, hole fineness etc.), therefore has limitation, it is non-linear that uncertainty of measurement is, 1., influenced by the size of the grain type seed of grain therefore can not show the true value of its unit weight, its shortcoming and defect part is in particular in:.The sample of same component content, the value of bulk density that the corn that horse flute profile or seed are big is measured is just little, and the value of bulk density of measuring that seed is little is just big.2., influenced by the free flowability of grain.Free flowability is good, and the value of bulk density of measuring is big; Free flowability is bad, and the value of bulk density of measuring is little.3., influenced by the hole fineness of grain.The hole fineness is big, and the value of bulk density of measuring is little; The hole fineness is little, and the value of bulk density of measuring is big.4., be subjected to the influence of grain moisture content value size.Moisture value surpasses 18.0% corn, does not detect.Can only detect the sample of 18.0% following moisture value.5., science not.Moisture measures how much what are at the sample below 18.0%, waits according to science not just as fixed, and taking corn is example; Moisture is that 17.5% value of bulk density of measuring is that 723g/L should be 1 corn such as grade, but the value of bulk density that moisture was reduced to 14.0% o'clock is 723g/L anything but, but about 712g/L, having become 2 corns such as grade, the corn value of bulk density of measuring 17.5% moisture is just without any meaning.This method is a science, imprecise not thus.
Summary of the invention
The purpose of this utility model is that a kind of influence that is not subjected to factors such as temperature, moisture, seed size, free flowability, hole fineness, accuracy of detection height, the grain unit weight measuring instrument that error is little, repetition stability good, cost is low, easy to operate will be provided.
The purpose of this utility model is to realize like this, this measuring instrument comprises that data processing equipment, balance, ware box, tank, title sample ware, frame, cereal jig, the described data processing equipment that is used for data acquisition and data processing is arranged on a side of frame, the balance that is used for weighing disk box and example weight be arranged on frame above, below balance, be provided with lower scale hook; The tank that water is equipped with in the inside be arranged on frame below.
The described specimen that is used for is cleaned the cereal of removal of impurities and is jigged by upper strata sieve nest, lower floor's sieve nest, sieve base and constitute.
Have a plurality of equally distributed apertures on the described ware box.
The utility model is owing to adopt said structure to have the following advantages:
1, use product of the present invention not to be subjected to the influence of a type, seed size.The height that only reflects the inner component content of grain, as long as full seed component content height, it is just big, just little on the contrary to measure value of bulk density.
2, use product of the present invention not to be subjected to the influence of sample temperature, grain free flowability, grain hole fineness.
3, product of the present invention is not subjected to the restriction of grain moisture content value size, and the value of bulk density of measuring is the value of bulk density when being adapted to safe moisture 14%, and moisture is lower than at 14% o'clock, does not revise.
4, use the tight more science of product of the present invention.Value of bulk density when the value of bulk density of measuring is safe water score value 14%, because the method for this measurement value of bulk density will be as detecting " mass of 1000 kernel ", " mass of 1000 kernel " in the time of must being converted to same moisture value (mark water, safe water, butt) just has the comparability under the equal conditions.So methods such as this is fixed are only science, tight.
5, product of the present invention has been avoided the influence of all external interference factors, and it is fixed etc. to have realized under same moisture, the equal conditions that height to grain seed dry matter content carries out classification.
Description of drawings
Fig. 1 is a kind of grain unit weight of the present invention measuring instrument one-piece construction synoptic diagram.
Embodiment
Shown in accompanying drawing 1: a kind of grain unit weight measuring instrument, this measuring instrument comprises:
The data processing equipment 1 that is used for data acquisition and data processing;
The balance 2 that is provided with lower scale hook 8 below above the frame 6 its that is arranged on that is used for weighing disk box and example weight;
The ware box 3 that is used for the splendid attire sample;
The tank 4 of water is equipped with in the following the inside that is arranged on frame 6;
The title sample ware 5 that is used for the splendid attire specimen;
Being used for specimen cleans the cereal of removal of impurities and jigs 7
Described cereal jigs 7 and is made of upper strata sieve nest 9, lower floor's sieve nest 10, sieve base 11.
Concrete measuring method is as follows:
Choose corn 2kg, carry out that unit weight is measured and fixed etc.,
Concrete steps are as follows:
1., early stage equipment prepare: at first balance is transferred to level, with tank be arranged on balance on the frame under the position, put into water in the tank, energized, after treating the balance preheating, calibrate balance, and then will claim the sample ware to be put into to allowance for bark zero clearing on the electronic balance with standard weights; Last weighing disk box tare weight, method are after ware lid loam cake is immersed 4～5 the emptying bubbles of vibrating in the water, to hang over the weighing that suspends on the balance lower scale hook, treat that balance is stable after, receive tare weight data A=85.3g and also be stored to data processing equipment.
2., sample is prepared: in the sample set-up procedure, sample is pressed GB 5491 execution with dividing sample, preparation method and requirement are: divide to round a sample 1000g and jig with cereal and screen, get cereal on lower floor's sieve nest of Ex-all impurity as the sample of measuring unit weight, requiring cereal to jig upper strata sieve nest screen size for the corn sample is that Φ 12mm, lower floor's sieve nest screen size are Φ 3mm.
3., sample weighs: with the abundant mixing of the sample for preparing, with claiming sample ware splendid attire to be placed on weighing sample on the balance, treat that balance is stable after, receive the sample tuple according to W=313.0g and be stored to data processing equipment.
4., ware box gross weight weighing: the sample is 3. poured in the ware box that is placed on underwater platform, cover the ware lid, after immersing 4～5 the emptying bubbles of vibrating in the water, hang over the weighing that suspends on the balance lower scale hook, treat 5 seconds of the stable back of balance to receive gross weight data B=130.9g immediately and be stored to data processing equipment.
5., moisture value correction: this sample water score value is 13.5%, is lower than 14.0% and imports 14.0% on the moisture function key on the data processing equipment.
6., data processing: after the heavy W of sample, ware box tare weight A, gross weight B, sample water score value are received by data processing equipment, will handle the value of bulk density (g/L) that the back shows sample automatically through data processing equipment;
The value of bulk density computing formula is as follows:
Value of bulk density (g/L)=KWd/ (W-B+A)-C (X-14.0)
＝612×313÷(313-130.9+85.3)-2.9×(14.0-14.0)
＝612×313÷267.4＝716g/L。Be second-class corn
K---reduction coefficient (corn constant 612)
The heavy g of W---sample
D---the density value 1g/mL of water in the tank
B---ware box gross weight (sample is put into the weight of ware box at water) g
A---ware box tare weight g
C---moisture corrected parameter (corn constant 2.9)
X---sample water score value % when high (be true value, be 14.0% when low)
Will carry out twice test during test, two test findings permissible errors are no more than 3g/L, ask its average, are measurement result.
Claims (3)
1. grain unit weight measuring instrument, it is characterized in that: this measuring instrument comprises data processing equipment (1), balance (2), ware box (3), tank (4), claims sample ware (5), frame (6), cereal to jig (7), the described data processing equipment (1) that is used for data acquisition and data processing is arranged on a side of frame (6), the balance (2) that is used for weighing disk box and example weight be arranged on frame (6) above, below balance (2), be provided with lower scale hook (8); The tank (4) that water is equipped with in the inside be arranged on frame (6) below.
2. a kind of grain unit weight measuring instrument according to claim 1 is characterized in that: the described specimen that is used for is cleaned the cereal of removal of impurities and is jigged (7) and be made of upper strata sieve nest (9), lower floor's sieve nest (10), sieve base (11).
3. a kind of grain unit weight measuring instrument according to claim 1 is characterized in that: have a plurality of equally distributed apertures on the described ware box (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200939090U CN201464320U (en) | 2009-07-01 | 2009-07-01 | Grain volume weight measuring instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200939090U CN201464320U (en) | 2009-07-01 | 2009-07-01 | Grain volume weight measuring instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201464320U true CN201464320U (en) | 2010-05-12 |
Family
ID=42391671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200939090U Expired - Fee Related CN201464320U (en) | 2009-07-01 | 2009-07-01 | Grain volume weight measuring instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201464320U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929938B (en) * | 2009-06-25 | 2012-08-15 | 田志和 | Method for measuring volume weight of grain |
-
2009
- 2009-07-01 CN CN2009200939090U patent/CN201464320U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101929938B (en) * | 2009-06-25 | 2012-08-15 | 田志和 | Method for measuring volume weight of grain |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20120701 |