CN201225907Y - Device for measuring cereal flow - Google Patents
Device for measuring cereal flow Download PDFInfo
- Publication number
- CN201225907Y CN201225907Y CNU2008200466355U CN200820046635U CN201225907Y CN 201225907 Y CN201225907 Y CN 201225907Y CN U2008200466355 U CNU2008200466355 U CN U2008200466355U CN 200820046635 U CN200820046635 U CN 200820046635U CN 201225907 Y CN201225907 Y CN 201225907Y
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- CN
- China
- Prior art keywords
- semi
- girder
- rearmounted
- preposition
- punching
- Prior art date
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Abstract
The utility model discloses a grain flow-rate measuring apparatus, which comprises a bracket, a preposing punching plate that is connected with the bracket through a preposing overhanging beam, a post-position punching plate that is connected with the bracket through a post-position overhanging beam, a strain foil that is respectively arranged on the preposing and the post-position overhanging beams, and a difference measurement circuit that is connected with the strain foil, wherein, the preposing punching plate is paralleled to the post-positoin punching plate. The measuring apparatus can effectively eliminate the influence of the vibration signal, and has precise measurement.
Description
Technical field
The utility model relates to the flow measurement technology of solid particle, relates in particular to a kind of grain flow-measuring device.
Background technology
In precision agriculture is produced, when adopting united reaper harvesting paddy rice, need weigh in real time, to obtain the difference of rice yield and each sub-district to the paddy rice of harvesting.It is too high that but existing ray type output measuring method and device have a higher measuring accuracy cost. impulse type output measuring method and device can be realized the measurement of cereal flow by measurement cereal to the impulsive force of measuring method and device, cost is low to be easy to apply, but because vibration is bigger in the harvester course of work, the disturbing effect of vibration signal measuring accuracy, the error of grain flow-measuring is increased.
The utility model content
At the shortcoming of prior art, the purpose of this utility model provides a kind of vibration signal of effectively eliminating influences, measures accurate grain flow-measuring device.
For achieving the above object, the technical solution of the utility model is: a kind of grain flow-measuring device, the preposition punching that comprises support, is connected with support by preposition semi-girder, the rearmounted punching that is connected with support by rearmounted semi-girder, the difference measurement circuit that is arranged at the foil gauge on preposition semi-girder and the rearmounted semi-girder and is connected respectively with foil gauge, and this preposition punching and rearmounted punching parallel interval are provided with.
Rearmounted semi-girder is installed on the preposition semi-girder, and rearmounted semi-girder and preposition semi-girder are in the same plane.
This preposition semi-girder and rearmounted semi-girder are arc shape, and two semi-girders end of connecting supports to connect an end of punching wide.Certainly, this preposition semi-girder and rearmounted semi-girder also can be yi word pattern, and an end of rearmounted semi-girder is installed in parallel in by pad on the end of preposition semi-girder, and the other end of two semi-girders connects two punchings respectively.
All post four foil gauges that constitute bridge circuit structure on preposition semi-girder and the rearmounted semi-girder.
This difference measurement circuit comprises three amplifier A1, A2, A3, the input end of amplifier A1 be located at preposition semi-girder and support and be connected with the foil gauge of preposition punching junction, the input end of amplifier A2 be located at rearmounted semi-girder and support and be connected with the foil gauge of rearmounted punching junction, the input end of amplifier A3 is connected with the output terminal of amplifier A1, A2, the impact signal of the output terminal output cereal of amplifier A3.
The grain outlet of two punchings and support is over against setting, and the size of punching, shape are consistent with size, the shape of grain outlet.This support is fixed on the mouth of putting out cereal of harvester elevator.
Compared with prior art, the utility model adopts two punching double cantilever beam structures, cereal impacts preposition punching, two punchings are experienced the vibration of harvester simultaneously and are made foil gauge produce common-mode signal, adopt two signals of difference measurement processing of circuit the output signal can be separated from vibration signal, eliminate the influence power of harvester vibration.The utlity model has stronger anti-interference, the reliability height.
Description of drawings
Fig. 1 is the structural representation of the utility model grain flow-measuring device;
Fig. 2 is the fundamental diagram of the utility model difference measurement circuit.
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
See also Fig. 1, a kind of grain flow-measuring device, the preposition punching 2 that comprises support 1, is connected with support 1 by preposition semi-girder 4, the rearmounted punching 3 that is connected with support 1 by rearmounted semi-girder 5, the difference measurement circuit that is arranged at the foil gauge 6 on preposition semi-girder 4 and the rearmounted semi-girder 5 and is connected respectively, and this preposition punching 2 and rearmounted punching 3 parallel interval settings with foil gauge 6.Wherein, rearmounted semi-girder 5 is installed on the preposition semi-girder 4, and rearmounted semi-girder 5 and preposition semi-girder 4 are in the same plane, this support 1 is fixed on the mouth of putting out cereal of harvester elevator, and it is the structure of water conservancy diversion cereal, the cereal of going out is played standardization role, make the cereal level go out united reaper; Preposition punching 2 and rearmounted punching 3 sizes, material are all consistent, and preposition punching 2 all vertically hangs with rearmounted punching 3 and is parallel to each other.The grain outlet of two punchings and support 1 is over against setting, and the size of punching, shape are consistent with size, the shape of grain outlet, can be rectangle, shapes such as circle.
When cereal impacts punching,, on preposition semi-girder 4 and rearmounted semi-girder 5, all post four foil gauges 6 that constitute bridge circuit structure in order to improve the reaction sensitivity of punching.
This preposition semi-girder 4 is arc shape with rearmounted semi-girder 5, and it is wide that the end that two semi-girders connect supports connects an end of punching, purpose is in order to make two punchings can keep a gap, certainly, this preposition semi-girder 4 also can be yi word pattern with rearmounted semi-girder 5, and rearmounted semi-girder 5 one ends are installed in parallel in by pad on the end of preposition semi-girder 4, and the other end of two semi-girders connects two punchings respectively, and the reason that pad is set also is in order to make two punchings can keep a gap.
As shown in Figure 2, this difference measurement circuit comprises three amplifier A1, A2, A3, the input end of amplifier A1 be located at preposition semi-girder 4 and support 1 and be connected with the foil gauge 6 of preposition punching 2 junctions, the input end of amplifier A2 be located at rearmounted semi-girder 5 and support 1 and be connected with the foil gauge 6 of rearmounted punching 3 junctions, the input end of amplifier A3 is connected with the output terminal of amplifier A1, A2, the impact signal of the output terminal output cereal of amplifier A3.
During measurement, preposition punching 2 is used for bearing the impact of paddy, impulsive force makes preposition semi-girder 4 that deformation take place, two punchings are sensed the vibration of harvester simultaneously and are made foil gauge 6 produce common-mode signal, adopt two signals of difference measurement processing of circuit just the cereal impact signal can be separated from vibration signal, the impact signal of handling cereal by singlechip chip can finally obtain the flow that cereal flows out the united reaper elevator, has eliminated the deviation of signal that the harvester vibration is brought simultaneously.
Claims (8)
1, a kind of grain flow-measuring device, the preposition punching that it is characterized in that comprising support, is connected with support by preposition semi-girder, the rearmounted punching that is connected with support by rearmounted semi-girder, the difference measurement circuit that is arranged at the foil gauge on preposition semi-girder and the rearmounted semi-girder and is connected with foil gauge respectively, this preposition punching and rearmounted punching parallel interval are provided with.
2, grain flow-measuring device according to claim 1, it is characterized in that: rearmounted semi-girder is installed on the preposition semi-girder, and rearmounted semi-girder and preposition semi-girder are in the same plane.
3, grain flow-measuring device according to claim 1 is characterized in that: this preposition semi-girder and rearmounted semi-girder are arc shape, and two semi-girders end of connecting supports to connect an end of punching wide.
4, grain flow-measuring device according to claim 1, it is characterized in that: this preposition semi-girder and rearmounted semi-girder are yi word pattern, and an end of rearmounted semi-girder is installed in parallel in by pad on the end of preposition semi-girder, and the other end of two semi-girders connects two punchings respectively.
5, grain flow-measuring device according to claim 1 is characterized in that: all post four foil gauges that constitute bridge circuit structure on preposition semi-girder and the rearmounted semi-girder.
6, according to each described grain flow-measuring device of claim 1 to 5, it is characterized in that: this difference measurement circuit comprises three amplifier A1, A2, A3, the input end of amplifier A1 be located at preposition semi-girder and support and be connected with the foil gauge of preposition punching junction, the input end of amplifier A2 be located at rearmounted semi-girder and support and be connected with the foil gauge of rearmounted punching junction, the input end of amplifier A3 is connected with the output terminal of amplifier A1, A2, the impact signal of the output terminal output cereal of amplifier A3.
7, grain flow-measuring device according to claim 6 is characterized in that: the grain outlet of two punchings and support is over against setting, and the size of punching, shape are consistent with size, the shape of grain outlet.
8, grain flow-measuring device according to claim 7 is characterized in that: this support is fixed on the mouth of putting out cereal of harvester elevator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200466355U CN201225907Y (en) | 2008-04-18 | 2008-04-18 | Device for measuring cereal flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008200466355U CN201225907Y (en) | 2008-04-18 | 2008-04-18 | Device for measuring cereal flow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201225907Y true CN201225907Y (en) | 2009-04-22 |
Family
ID=40598800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008200466355U Expired - Lifetime CN201225907Y (en) | 2008-04-18 | 2008-04-18 | Device for measuring cereal flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201225907Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354272B (en) * | 2008-04-18 | 2010-06-02 | 华南农业大学 | Apparatus for measuring cereal flow |
| CN101571468B (en) * | 2009-06-15 | 2011-09-21 | 扬州大学 | Automatic detector for textural properties of hardness and viscosity of cooked rice grains |
| CN102192781A (en) * | 2010-02-05 | 2011-09-21 | 西门子公司 | An apparatus and a method for performing a difference measurement of an object image |
-
2008
- 2008-04-18 CN CNU2008200466355U patent/CN201225907Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101354272B (en) * | 2008-04-18 | 2010-06-02 | 华南农业大学 | Apparatus for measuring cereal flow |
| CN101571468B (en) * | 2009-06-15 | 2011-09-21 | 扬州大学 | Automatic detector for textural properties of hardness and viscosity of cooked rice grains |
| CN102192781A (en) * | 2010-02-05 | 2011-09-21 | 西门子公司 | An apparatus and a method for performing a difference measurement of an object image |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20090422 Effective date of abandoning: 20080418 |