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Cereal particle hardness measurement method and its hardness measurement instrument

A technology for grain granules and measurement methods, which is applied in individual granule analysis, testing material hardness, granule and sedimentation analysis, etc., and can solve the problems of cumbersome and time-consuming testing process.

Active Publication Date: 2009-07-22
BEIJING DONGFU JIUHENG INSTR TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the above-mentioned existing grain hardness tester can only detect one particle at a time, so when using this hardness tester to detect a plurality of grain grains, it is necessary to lift the pressing rod, place a grain particle on the workbench, and then Depress the pressure rod, then lift the pressure rod, place the particles, and then press down to repeat the action. The test process is cumbersome and time-consuming

Method used

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  • Cereal particle hardness measurement method and its hardness measurement instrument
  • Cereal particle hardness measurement method and its hardness measurement instrument
  • Cereal particle hardness measurement method and its hardness measurement instrument

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Experimental program
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Embodiment approach 1

[0026] Such as figure 1 Shown, a kind of grain grain hardness tester, described grain grain hardness tester comprises a base 1, and described base 1 is provided with a first roll 11; A support seat 2 can be arranged on described base 1, the support base 2 is arranged on one side of the base 1, a second roll 21 is arranged on the support base 2 opposite to the first roll 11, and the two rolls 11, 21 rotate in opposite directions (the two rolls can be driven by a motor or Speed ​​reducer or other transmission modes drive the rotation, which is the prior art and will not be repeated here), and there is a gap A between the two rolls 11, 21; a force sensor is arranged between the base 1 and the support seat 2 3. In this embodiment, the force sensor 3 is a tension sensor 31 , one end of the tension sensor 31 is connected to the base 1 , and the other end is connected to the support base 2 .

[0027] The method for measuring the hardness of grain grains of the present invention is...

Embodiment approach 2

[0033] The principle and structure of this embodiment are basically the same as those of Embodiment 1, the difference is that figure 2 As shown, the force sensor 3 is a pressure sensor 32 .

[0034] When the cereal grain hardness tester of the present invention is in use, multiple single grain grains enter the gap A between the first roll 11 and the second roll 21 in turn, and the grain grains pass through under the drive of the two oppositely rotating rolls 11 and 21. The gap A is crushed under the pressure of the two rolls 11, 21, and the grain grains are broken while producing a reaction force to the two rolls 11, 21. Under the action of the reaction force, the support base 2 produces a slight displacement relative to the base 1. At this time, the slight swing of the support base 2 generates pressure on the pressure sensor 32; the pressure sensor 32 transmits the pressure data to the data acquisition process system, the data acquisition and processing system calculates an...

Embodiment approach 3

[0037] The principle and structure of this embodiment are basically the same as those of Embodiment 1, the difference is that image 3 As shown, the support base 2 is fixed on the base 1 through a cantilever load cell 33; in this structure, the cantilever load cell 33 is connected with the base 1 and the support base 2 as a whole, and the support base 2 will be delivered to the cantilever load cell 33, and the second roller 21 can be reset by the elastic action of the cantilever load cell 33 itself.

[0038]When the cereal grain hardness tester of the present invention is in use, multiple single grain grains enter the gap A between the first roll 11 and the second roll 21 in turn, and the grain grains pass through under the drive of the two oppositely rotating rolls 11 and 21. The gap A is crushed under the pressure of the two rolls 11, 21, and the grain grains are broken while producing a reaction force to the two rolls 11, 21. Under the action of the reaction force, the sup...

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Abstract

The invention relates to a meter for measuring the hardness of grains. The hardness measuring meter comprises: a base on which a first roll is arranged; and a support base arranged on the base. A second roll is arranged on the support base opposite to the first roll, the two rolls rotate in opposite directions, and a gap is arranged between the two rolls; and at least one force sensor is arranged between the base and the support base. The meter for measuring the hardness of grains is characterized in that the hardness of a plurality of single grains can be measured continuously between the two rolls as the two rolls rotate continuously in opposite directions, that is, a plurality of single grains can be fed into the gap between the first roll and the second roll by a feeding device so that the detection process of the grain group can be carried out continuously. The meter for measuring the hardness of grains quickly measures the grains in mass and overcomes the defect of the existing grain hardness meter in the aspect of the grain group hardness measurement.

Description

technical field [0001] The invention relates to a hardness tester, in particular to a grain grain hardness test method and a hardness tester thereof. Background technique [0002] Grain grain hardness refers to the pressure that grain grains bear when they are crushed under pressure, and grains with high hardness have strong compression resistance. Grain particle hardness can be measured by a hardness tester. The grain particle hardness tester applies pressure to the grain particle until it breaks, and measures the pressure it bears, which is used to represent the particle hardness value. [0003] At present, the existing hardness testers used in the determination of grain hardness in the market all adopt the pressure method. The principle of the pressure method is to use the pressure head to crush the grain particles, and determine the hardness of the grain particles according to the force on the sensor when the grain particles are crushed. Such as Figure 5 As shown, it ...

Claims

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Application Information

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IPC IPC(8): G01N3/42G01N15/10
Inventor 郝伟
Owner BEIJING DONGFU JIUHENG INSTR TECH
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