CN113390681B - Corn breeding sampler for single grain separation - Google Patents
Corn breeding sampler for single grain separation Download PDFInfo
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- CN113390681B CN113390681B CN202110834591.2A CN202110834591A CN113390681B CN 113390681 B CN113390681 B CN 113390681B CN 202110834591 A CN202110834591 A CN 202110834591A CN 113390681 B CN113390681 B CN 113390681B
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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
- G01N1/10—Devices for withdrawing samples in the liquid or fluent state
- G01N1/14—Suction devices, e.g. pumps; Ejector devices
Abstract
The invention relates to the technical field of corn sampling, and discloses a corn breeding sampler for single-grain separation, which comprises a sampling body, wherein a supporting body is vertically and rotatably connected in the sampling body, the supporting body divides the sampling body into an upper cavity and a lower cavity, and the lower part of the lower cavity is provided with an opening; the supporting body is coaxially and threadedly connected with a rotating shaft driven by a driving structure, the upper end of the rotating shaft penetrates through the sampler and is rotatably connected with the sampling body, the lower part of the supporting body is detachably connected with a plurality of hollow sampling shafts along the circumferential direction of the supporting body, the sampling shafts are different in length, through holes communicated with the upper cavity are formed in the sampling shafts, the through holes are conical, and the diameters of the through holes are sequentially increased from top to bottom; a sealing disc is coaxially fixed on the rotating shaft, a plurality of sealing shafts are arranged on the sealing disc along the circumferential direction of the sealing disc, the sealing shafts are in one-to-one correspondence with the through holes, and the sealing shafts extend into the through holes. The corn seed sampling device is simple in structure and is used for quickly sampling corn seeds at different positions in the packaging bag.
Description
Technical Field
The invention relates to the technical field of corn sampling, in particular to a corn breeding sampler for single-grain separation.
Background
Corn (Zea mays L.) is an annual herb of the grass family, also known as corn, corn cobs, maize, pearl rice, and the like. Native to central and south america, it is an important food crop in the world, widely distributed in the united states, china, brazil and other countries.
Compared with traditional grain crops such as rice, wheat and the like, the corn has strong drought tolerance, cold tolerance, barren tolerance and excellent environmental adaptability. The corn has higher nutritive value and is an excellent grain crop. As a high-yield grain crop in china, corn is an important feed source in animal husbandry, aquaculture, and the like, and is one of indispensable raw materials for food, medical care, light industry, chemical industry, and the like. Because the corn resources are extremely rich, cheap and easy to obtain, the corn also has a plurality of biological activities, such as oxidation resistance, tumor resistance, blood sugar reduction, immunity improvement, bacteriostasis, sterilization and the like, and has wide development and application prospects.
Generally, corn seeds need to be bred every year to select excellent varieties so as to obtain excellent qualities such as lodging resistance and high temperature resistance. The selected corn seeds are sown every year, the corn is threshed and collected when the corn seeds are mature, and then the corn seeds are taken back to a laboratory for sampling and seed testing so as to continuously research and select more excellent strains. During sampling, the sampling quantity is large, the corn is marked, the process is complicated, and the extraction efficiency is low.
Disclosure of Invention
The invention aims to provide a corn breeding sampler for single-grain separation, which is used for sampling corn seeds so as to improve the sampling efficiency of the corn seeds.
In order to achieve the purpose, the invention adopts the following technical scheme: a corn breeding sampler for single-grain separation comprises a sampling body, wherein a supporting body is vertically and rotatably connected in the sampling body, the supporting body divides the sampling body into an upper cavity and a lower cavity, and the lower part of the lower cavity is provided with an opening;
the supporting body is coaxially and threadedly connected with a rotating shaft driven by a driving structure, the upper end of the rotating shaft penetrates through the sampler and is rotatably connected with the sampling body, the lower part of the supporting body is detachably connected with a plurality of hollow sampling shafts along the circumferential direction of the supporting body, the sampling shafts are different in length, through holes communicated with the upper cavity are formed in the sampling shafts, the through holes are conical, and the diameters of the through holes are sequentially increased from top to bottom; a sealing disc is coaxially fixed on the rotating shaft, a plurality of sealing shafts are arranged on the sealing disc along the circumferential direction of the sealing disc, the sealing shafts are in one-to-one correspondence with the through holes, and the sealing shafts extend into the through holes to seal the through holes.
The principle and the advantages of the scheme are as follows: (1) in this scheme, stretch into the sample body to the maize seed wrapping bag in, start actuating mechanism, actuating mechanism drives the pivot and rotates, and at pivot pivoted in-process, the vertical downstream of pivot drive supporter, supporter area sample axle stretch into to between the maize seed, because the length of sample axle is different, then the different positions of sample axle in the wrapping bag. In the process that the supporter moved down for the pressure of epicoele reduces in order to form the negative pressure, and the through-hole inhales maize seed through the sample shaft under the effect of negative pressure, so reach the purpose of carrying out the different positions sample in the wrapping bag, so realize random sampling.
(2) In the sample process, the sample axis moves down, seals after axle and the through-hole breaks away from, and the maize seed just can receive the effect of negative pressure and inhale, so can avoid the maize seed of other positions to enter into to the sample axis in. Simultaneously, in this scheme, the diameter that the through-hole is toper and through-hole increases from last to increasing in proper order down, and the seed of inhaling can move towards the top of sample axle gradually, and then makes maize seed chucking in the sample axle to seal the through-hole, then other maize seeds can not receive the effect entering of negative pressure, play the purpose of single seed sample.
Preferably, as an improvement, the driving mechanism includes a motor, a main gear is coaxially fixed on an output shaft of the motor, the main gear is engaged with a driven gear, and the driven gear is coaxially fixed with the rotating shaft and is located outside the sampling body.
Has the advantages that: the motor drives the main gear and the driven gear to rotate, and further drives the rotating shaft to rotate.
Preferably, as a modification, the sampling shaft is provided with a marking groove, and a marking layer is fixed in the marking groove.
Has the advantages that: the sampled corn seeds are marked by a marking layer.
Preferably, as a refinement, a flexible layer is fixed in the through hole.
Has the advantages that: the flexible layer reduces the squeezing action of the sampling shaft on the corn seeds and reduces the probability of damage of the corn seeds.
Preferably, as an improvement, an electric control cylinder is arranged between the closed shaft and the closed disc, the electric control cylinder is fixedly connected with the closed disc, an output shaft of the electric control cylinder is fixedly connected with the closed shaft, a negative pressure pipe is fixed on the sampling body, the negative pressure pipe is communicated with the upper cavity, the negative pressure pipe is communicated with a negative pressure pump, a storage battery and a controller which are electrically connected with the electric control cylinder are fixed on the closed disc, and the controller controls the opening and closing of the electric control cylinder.
Has the advantages that: when the sampling shaft descends for a short time, for example, the closed shaft is not drawn out from the through hole, the electric control cylinder is started to take the closed shaft out of the through hole, the negative pressure in the upper cavity is small and the corn seeds are difficult to suck, the negative pressure pump is started at the moment, the negative pressure pump pumps the upper cavity for increasing the negative pressure in the sampling shaft, and the corn seeds are sucked by enough kinetic energy.
Preferably, as an improvement, the lower end of the rotating shaft is fixed with a limiting block positioned below the supporting body.
Has the advantages that: the stopper is in order to carry on spacingly to the supporter, avoids supporter roll-off pivot.
Preferably, as an improvement, open the spout on the sample body, be fixed with the slider that is located the spout in the pivot, the pivot passes through slider and spout and sample body rotation connection.
Has the advantages that: the rotating shaft drives the sliding block to rotate in the sliding groove, and the sampling body supports the rotating shaft through the sliding block.
Preferably, as a refinement, the ratio of the teeth of the master gear to the slave gear is 2: 1.
Has the advantages that: the main gear and the auxiliary gear have a certain gear ratio so as to accelerate the rotation of the rotating shaft and improve the downward sliding speed of the support body.
Drawings
FIG. 1 is a schematic diagram of a corn breeding sampler for single grain separation according to one embodiment of the present invention.
Fig. 2 is a schematic view of a sampling tube according to an embodiment of the present invention.
FIG. 3 is a schematic diagram of a corn breeding sampler for single grain separation according to a second embodiment of the present invention.
FIG. 4 is a schematic view of a sampling tube according to a second embodiment of the present invention.
Detailed Description
The present invention will be described in further detail below by way of specific embodiments:
reference numerals in the drawings of the specification include: the device comprises a sampling body 11, an upper cavity 12, a slide block 13, a driven gear 14, a rotating shaft 15, a main gear 16, a motor 17, a supporting body 18, a sampling shaft 19, a movable part 191, a marking layer 192, a flexible layer 193, a through hole 194, a push rod 195, a supporting part 196, a spring 197, a supporting rod 198, a limiting block 20, an extending shaft 2l, a sealing shaft 22, a sealing disc 23, a negative pressure pipe 24, an electric control cylinder 25, a storage battery 26 and a controller 27.
The first embodiment is as follows:
substantially as shown in figures 1 and 2: the utility model provides a single grain separation is with maize breeding sampler, including the sample body 11, vertical sliding connection has supporter 18 in the sample body 11, supporter 18 separates sample body 11 for epicoele 12 and lower chamber, the lower part opening of lower chamber, coaxial being fixed with pivot 15 on the supporter 18, sample body 11 is run through to the upper end of pivot 15, it has the spout to open on the roof of sample body 11, the upper portion of pivot 15 is fixed with the slider 13 that is located the spout, pivot 15 passes through slider 13 and spout and is connected with sample body 11 rotates. An extension shaft 21 is fixed at the lower end of the rotating shaft 15, and a limiting block 20 for limiting the support 18 is fixed on the extension shaft 21 through a bolt.
In the embodiment, the rotating shaft 15 is driven by a driving mechanism, the driving mechanism comprises a motor 17 fixed on the sampling body 11 through bolts, a main gear 16 is fixed on an output shaft of the motor 17 through a coaxial bolt, the main gear 16 is meshed with the driven gear 14, the driven gear 14 is fixedly connected with the rotating shaft 15 through a coaxial bolt, the driven gear 14 is located above the sampling body 11, and the gear ratio of the main gear 16 to the driven gear 14 is 2: 1. In this embodiment, a cover may be fixed to the sampling body 11 for protecting the master gear 16 and the slave gears.
The supporting body 18 is detachably connected with a plurality of sampling shafts 19 along the circumferential direction of the supporting body, the sampling shafts 19 are located in the lower cavity, the detachable connection is threaded connection in the embodiment, through holes 194 are formed in the sampling shafts 19, the through holes 194 are conical, the diameters of the through holes 194 increase from top to bottom in sequence, the through holes 194 are communicated with the upper cavity 12, flexible layers 193 are fixedly bonded on the side walls of the through holes 194, and the flexible layers 193 are rubber layers in the embodiment. A sealing disc 23 is arranged above the supporting body 18, the sealing disc 23 is fixedly connected with the rotating shaft 15 through coaxial bolts, a plurality of sealing shafts 22 are fixed on the sealing disc 23 along the circumferential direction of the sealing disc 23 through screws, the sealing shafts 22 correspond to the through holes 194 one by one, and the sealing shafts 22 extend into the through holes 194 to seal the through holes 194.
In this embodiment, the sample shaft 19 includes the fixed part and is located the movable part 191 of fixed part below, and movable part 191 is close to one side and the 19 horizontal sliding fit of sample shaft of stopper 20, and is specific: a supporting part 196 is fixed on the movable part 191 through a screw, a supporting rod 198 which is horizontally connected with the fixing part in a sliding manner is fixed on the supporting part 196, a resisting rod 195 is fixed on the limiting block 20 through a screw, the resisting rod 195 is propped against the supporting rod 198, a spring 197 is sleeved on the supporting rod 198, one end of the spring 197 is fixedly connected with the supporting part 196, and the other end of the spring 197 is fixedly connected with the fixing part. The movable portion 191 is provided with a marking groove, a marking layer 192 is bonded and fixed in the marking groove, and the marking layer 192 is used for marking the sampling shaft 19.
The specific implementation process is as follows:
initially, the propping rod 195 props against the supporting rod 198, and at this time, the through hole 194 is substantially sealed by the movable portion 191, so that the whole sampling body 11 is inserted into the corn seed packaging bag.
The motor 17 is started, the motor 17 drives the main gear 16 and the driven gear 14 to rotate, the driven gear 14 drives the rotating shaft 15 to rotate, the rotating shaft 15 drives the sealing disc 23 to coaxially rotate, the supporting body 18 vertically slides downwards, when the supporting body 18 slides downwards to a certain distance, the sealing shaft 22 is drawn out of the through hole 194, the through hole 194 is communicated with the upper cavity 12, meanwhile, the resisting rod 195 is separated from the supporting rod 198, and the movable part 191 slides under the action of the spring 197, so that the through hole 194 is opened. Because the supporting body 18 slides downwards, a certain negative pressure is generated in the upper chamber 12, and because the through hole 194 is communicated with the upper chamber 12, the corn seeds are sucked under the action of the negative pressure. Because the grain diameters in the corns are different, and the through hole 194 is conical, after one corn seed enters the through hole 194, the corn seed slides upwards under the action of negative pressure, and then the through hole 194 is gradually sealed, the negative pressure below the corn seed can be lost, and the purpose of single-seed sampling is achieved. Meanwhile, as the flexible layer 193 is extruded by the corn seeds, the flexible layer 193 deforms to seal the gap between the corn seeds and the sampling shaft 19, so that the sealing effect is improved.
In this embodiment, the length of sampling axle 19 is different, stretches into the back in the wrapping bag, can be to different positions sample, and random sampling improves the accuracy of follow-up inspection.
Example two:
the difference between the second embodiment and the first embodiment is that, as shown in fig. 3 and fig. 4, a storage battery 26 and a controller 27 are fixed on the sealing disc 23 by screws, an electric control cylinder 25 is arranged between the sealing shaft 22 and the sealing disc 23, the electric control cylinder 25 is fixedly connected with the sealing disc 23 by screws, and an output shaft of the electric control cylinder 25 is fixedly connected with the sealing shaft 22 by bolts. The controller 27 and the battery 26 are electrically connected to the electric control cylinder 25. A negative pressure pipe 24 is fixed on the sampling body 11, one end of the negative pressure pipe 24 is communicated with the upper chamber 12, the other end of the negative pressure pipe 24 is communicated with a negative pressure pump, and the controller 27 is electrically connected with the motor 17 and the negative pressure pump.
The specific implementation process is as follows:
when the position needing sampling is small, at the moment, the rotation time of the motor 17 is short, the downward sliding distance of the support body 18 is small, the downward moving distance of the sampling shaft 19 is small, at this moment, it is likely that the closed shaft 22 is always located in the through hole 194 (however, the resisting rod 195 is separated from the supporting rod 198), so that the through hole 194 cannot be communicated with the upper chamber 12, the downward sliding distance of the support body 18 is small, and the negative pressure of the upper chamber 12 is small.
In order to overcome the above problem, the controller 27 may control the operation of the electric control cylinder 25, the electric control cylinder 25 slides upwards with the sealing shaft 22, so that the sealing shaft 22 is drawn out of the through hole 194, and the accumulator 26 supplies power to the electric control cylinder 25 and the controller 27. At the same time, the negative pressure pump is started, and the negative pressure pump pumps negative pressure to the upper cavity 12 through the negative pressure pipe 24, so that the upper cavity 12 has enough negative pressure, and corn seeds can be sucked through the through hole 194 on the sampling shaft 19.
The control principle of the controller 27 is as follows: the controller 27 does not control the electric cylinder 25 based on the operation time of the motor 17, for example, if the operation time is longer than 3s, and if the operation time of the motor 17 is shorter than 3s, the controller 27 controls the electric cylinder 25 and the negative pressure pump to be started simultaneously based on the information.
The foregoing is merely an example of the present invention and common general knowledge in the art of designing and/or characterizing particular aspects and/or features is not described in any greater detail herein. It should be noted that, for those skilled in the art, without departing from the technical solution of the present invention, several variations and modifications can be made, which should also be regarded as the protection scope of the present invention, and these will not affect the effect of the implementation of the present invention and the practicability of the patent. The scope of the claims of the present application shall be determined by the contents of the claims, and the description of the embodiments and the like in the specification shall be used to explain the contents of the claims.
Claims (7)
1. A corn breeding sampler for single-grain separation is characterized in that: the sampling device comprises a sampling body, wherein a supporting body is vertically and rotatably connected in the sampling body, the supporting body divides the sampling body into an upper cavity and a lower cavity, and the lower part of the lower cavity is provided with an opening;
the supporting body is coaxially and threadedly connected with a rotating shaft driven by a driving structure, the upper end of the rotating shaft penetrates through the sampler and is rotatably connected with the sampling body, the lower part of the supporting body is detachably connected with a plurality of hollow sampling shafts along the circumferential direction of the supporting body, the sampling shafts are different in length, through holes communicated with the upper cavity are formed in the sampling shafts, the through holes are conical, and the diameters of the through holes are sequentially increased from top to bottom;
a sealing disc is coaxially fixed on the rotating shaft, a plurality of sealing shafts are arranged on the sealing disc along the circumferential direction of the sealing disc, the sealing shafts are in one-to-one correspondence with the through holes and extend into the through holes to seal the through holes, and a limiting block positioned below the supporting body is fixed at the lower end of the rotating shaft;
the sample axle includes fixed part and the movable part that is located the fixed part below, and one side that the movable part is close to the stopper and sample axle horizontal sliding fit are fixed with the supporting part on the movable part, be fixed with on the supporting part with fixed part horizontal sliding connection's bracing piece, and the fix with screw has on the stopper supports the pole, supports pole and bracing piece and offsets, and the cover is equipped with the spring on the bracing piece, the one end and the supporting part fixed connection of spring, the other end and the fixed part fixed connection of spring (197).
2. The single grain segregation corn breeding sampler of claim 1, wherein: the driving mechanism comprises a motor, a main gear is coaxially fixed on an output shaft of the motor, the main gear is meshed with a driven gear, and the driven gear is coaxially fixed with the rotating shaft and is positioned on the outer side of the sampling body.
3. The single grain segregation corn breeding sampler of claim 2, wherein: the sampling shaft is provided with a marking groove, and a marking layer is fixed in the marking groove.
4. The single grain segregation corn breeding sampler of claim 3, wherein: a flexible layer is fixed in the through hole.
5. The corn breeding sampler for single grain separation according to any one of claims 1 to 4, characterized in that: an electric control cylinder is arranged between the closed shaft and the closed disc, the electric control cylinder is fixedly connected with the closed disc, an output shaft of the electric control cylinder is fixedly connected with the closed shaft, a negative pressure pipe is fixed on the sampling body and is communicated with the upper cavity, the negative pressure pipe is communicated with a negative pressure pump, a storage battery and a controller which are electrically connected with the electric control cylinder are fixed on the closed disc, and the controller controls the opening and closing of the electric control cylinder.
6. The single grain segregation corn breeding sampler of claim 5, wherein: the sampling body is provided with a sliding groove, a sliding block positioned in the sliding groove is fixed on the rotating shaft, and the rotating shaft is rotatably connected with the sampling body through the sliding block and the sliding groove.
7. The single grain segregation corn breeding sampler of claim 6, wherein: the gear ratio of the main gear to the driven gear is 2: 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110834591.2A CN113390681B (en) | 2021-07-21 | 2021-07-21 | Corn breeding sampler for single grain separation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110834591.2A CN113390681B (en) | 2021-07-21 | 2021-07-21 | Corn breeding sampler for single grain separation |
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| Publication Number | Publication Date |
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| CN113390681A CN113390681A (en) | 2021-09-14 |
| CN113390681B true CN113390681B (en) | 2022-07-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202110834591.2A Active CN113390681B (en) | 2021-07-21 | 2021-07-21 | Corn breeding sampler for single grain separation |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995955A (en) * | 2006-12-30 | 2007-07-11 | 中国石油大学(北京) | Axial multipoint-parallel vacuum type solid particles sampling device for fluidized bed |
| CN106769172A (en) * | 2017-01-19 | 2017-05-31 | 河南农业大学 | A kind of corn breeding automatic sampler |
| CN110126001A (en) * | 2019-06-14 | 2019-08-16 | 山东农业大学 | A kind of positioning profiling corn seed cutter and its application method |
| CN112903366A (en) * | 2021-01-23 | 2021-06-04 | 烟台慧博特产业研究院有限公司 | Stratified granary sampler capable of avoiding grain flowing |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7998669B2 (en) * | 2006-03-02 | 2011-08-16 | Monsanto Technology Llc | Automated contamination-free seed sampler and methods of sampling, testing and bulking seeds |
| US7915006B2 (en) * | 2006-11-13 | 2011-03-29 | Pioneer Hi-Bred International, Inc. | Methodologies, processes and automated devices for the orientation, sampling and collection of seed tissues from individual seed |
-
2021
- 2021-07-21 CN CN202110834591.2A patent/CN113390681B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1995955A (en) * | 2006-12-30 | 2007-07-11 | 中国石油大学(北京) | Axial multipoint-parallel vacuum type solid particles sampling device for fluidized bed |
| CN106769172A (en) * | 2017-01-19 | 2017-05-31 | 河南农业大学 | A kind of corn breeding automatic sampler |
| CN110126001A (en) * | 2019-06-14 | 2019-08-16 | 山东农业大学 | A kind of positioning profiling corn seed cutter and its application method |
| CN112903366A (en) * | 2021-01-23 | 2021-06-04 | 烟台慧博特产业研究院有限公司 | Stratified granary sampler capable of avoiding grain flowing |
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