CN107079640A - Pneumatic seeding apparatus dynamics is adjustable cleaning device - Google Patents
Pneumatic seeding apparatus dynamics is adjustable cleaning device Download PDFInfo
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- CN107079640A CN107079640A CN201710360825.8A CN201710360825A CN107079640A CN 107079640 A CN107079640 A CN 107079640A CN 201710360825 A CN201710360825 A CN 201710360825A CN 107079640 A CN107079640 A CN 107079640A
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- seed
- cleaning tool
- body frame
- interior
- tool seat
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
- Cleaning In General (AREA)
Abstract
The present invention, which is proposed, a kind of can realize the adjustable cleaning device of Pneumatic seeding apparatus dynamics of high speed and precision seeding.It includes：Body frame；Seed-cleaning tool, including interior Seed-cleaning tool and outer Seed-cleaning tool, interior Seed-cleaning tool are connected through interior Seed-cleaning tool seat with body frame, and outer Seed-cleaning tool is connected through outer Seed-cleaning tool seat with body frame；Adjustment mechanism, including adjustment handwheel, are detachably connected on body frame, are connected with Seed-cleaning tool, and drive interior Seed-cleaning tool and outer Seed-cleaning tool move toward one another；And floating positioning device, including Location resilient piece and spacing spring silk, Location resilient piece is detachably connected on body frame, and spacing spring silk middle part is detachably connected on body frame.
Description
Technical field
The present invention relates to a kind of agricultural machinery Pneumatic seeding apparatus cleaning device, and in particular to a kind of Pneumatic seeding apparatus power
Adjustable cleaning device is spent, belongs to agricultural machinery technological field.
Background technology
Due to precision drilling can accurately control spacing in the rows, save thinning operation, be conducive to volume increase stable yields and save seed, meet
Modern agricultural development requirement, is now widely used for the program request of the imtertilled crops such as corn and soybean, cotton, sorghum, beet.Influence
The factor of precision drilling is a lot, and the seed-metering performance of wherein feed mechanism for seed is one of key factor.Precise seeder is broadly divided into machinery
Two kinds of formula and Pneumatic type, mechanical to be divided into Horizontal disc, indent type, vertical scoop-wheel and finger-clipped again, Pneumatic type is divided into gas
Suction, air-sweeping type and vapour-pressure type.Pneumatic type more mechanically there is seed to damage small, shape of the seed strong adaptability, structure relatively
Simple advantage, but since it is desired that air-flow rationally disturbance with realize efficiently disturb kind after fill kind of an absorption, it is higher to design requirement.At present
Finger-clipping type seed metering device is relatively low because of its cost, the suitable type arrangement in space is saved without being equipped with blower fan, while without rear power output
Fraction horsepower tractor during axle is adapted to, highest operating speed in 5km/h or so, be relatively adapted to current small-scale cropping pattern and
Small plot.The not yet extensive use of domestic air-suction seeding unit, based on imported product, domestic production producer is less and product is to draw
Enter external more early product to use for reference based on development, the seeder replay rate parameter that the simple grain rate of feed mechanism for seed is related has larger gap.With
The requirement that the propulsion and agronomy operation of domestic land transformation become more meticulous, the Pneumatic type for being adapted to 10km/h and above operating speed is high
Fast precision drill will turn into the market mainstream.
Seed sowing device performance parameter is more, and wherein operating speed, simple grain rate and leakage kind rate are most important three parameters, clear to plant
Device performance directly affects above parameter, is the important component of feed mechanism for seed.Require that clear dynamics of planting is appropriate during high-speed job,
Avoid damage to realize the target that simple grain rate is high, leakage kind rate is low on the premise of seed.
Cleaning device is generally made up of Seed-cleaning tool, positioning seat, three parts of adjustment mechanism.Seed-cleaning tool is collided with seed and removed
Seed outside the normotopia of seeding dish type hole, positioning seat is used to connect Seed-cleaning tool and housing, and adjustment mechanism is by changing Seed-cleaning tool and row
The relative position for planting dish type hole realizes the clear change for planting dynamics.
Conventional precision seeder Seed-cleaning tool form is the progressive multistage clear kind of two or three cutting edges at present, just be can guarantee that
Higher simple grain rate；Positioning seat is usually hub form, and axle is fixed on housing, and Seed-cleaning tool can on axle by the borehole jack of one end
Rotated as the center of circle；Adjustment mechanism is generally eccentric wheel form, by rotation Seed-cleaning tool can be driven to rotate certain around fixing axle
Angle, position of the Seed-cleaning tool cutting edge with respect to seeding dish type hole is changed so as to realize.Which has more deficiency, such as Seed-cleaning tool and shell
Body is that relative stiffness is coupled and causes during high speed that seed impact is big, only side has Seed-cleaning tool to be that unilateral clear plant causes more than seed posture not
Transported beneficial to the later stage, the blade curve for causing to guide seed posture is adjusted for Seed-cleaning tool side tilting with respect to seeding dish type hole phase
To relationship change substantially so as to cause the complicated unfavorable control of absorbed seed attitudes vibration.
The content of the invention
In order to overcome the shortcomings of existing cleaning device, more high speed and precision seeding is realized, the present invention proposes a kind of Pneumatic type seeding
Device dynamics is adjustable cleaning device.
The present invention is as follows using technical scheme：
A kind of adjustable cleaning device of Pneumatic seeding apparatus dynamics, including：
Body frame；
Seed-cleaning tool, including interior Seed-cleaning tool and outer Seed-cleaning tool, interior Seed-cleaning tool are connected through interior Seed-cleaning tool seat with body frame, and outer Seed-cleaning tool is through outer
Seed-cleaning tool seat is connected with body frame；
Adjustment mechanism, including adjustment handwheel, are detachably connected on body frame, are connected with Seed-cleaning tool, and drive interior Seed-cleaning tool and outer
Seed-cleaning tool move toward one another；With
Floating positioning device, including Location resilient piece and spacing spring silk, Location resilient piece are detachably connected on body frame, in spacing spring silk
Portion is detachably connected on body frame.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, is oriented between Seed-cleaning tool and body frame provided with slide rail
Detent mechanism, slide rail guiding positioning mechanism includes two dovetail guides, and dovetail guide is detachably connected on body frame, outer Seed-cleaning tool seat
Provided with dovetail groove, Seed-cleaning tool seat is provided with inclined-plane to coordinate on the inside of two inclined-planes, dovetail guide and slided, dovetail guide outside and dovetail
Groove is slidably connected.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, it is main that outer Seed-cleaning tool seat includes outer Seed-cleaning tool seat
Body, outer Seed-cleaning tool seat main body one side is provided with more than one outer Seed-cleaning tool connecting pole, and another side is provided with outer Rotational Cylindrical, corresponding adjustment
Handwheel surface is provided with the shifting chute coordinated with outer Rotational Cylindrical, and dovetail groove is arranged in the one side with outer Rotational Cylindrical.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, it is main that interior Seed-cleaning tool seat includes interior Seed-cleaning tool seat
Body, interior Seed-cleaning tool seat main body one side is provided with more than one interior Seed-cleaning tool connecting pole, and another side is provided with turning in shifting chute cooperation
Dynamic post.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, body frame includes main frame body and removable with main frame body
The outer panel of connection is unloaded, main frame body is to have circle convex platform, Location resilient piece mounting groove, Seed-cleaning tool seat perforation on sketch plate, main frame body
With spring silk stopper slot, circle convex platform is two sections and is symmetricly set on Location resilient piece mounting groove both sides, and Seed-cleaning tool seat perforation distributions exist
Location resilient piece mounting groove both sides and on the inside of the circle convex platform, spring silk stopper slot is located on the outside of circle convex platform, main frame body another side
Provided with two guide rail mounting grooves.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, outer panel is provided with and the cylindrical cooperation of discharge plate
Guiding track slot, be oriented to track slot provided with more than one positioning drag reduction boss.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, it also includes locking contact, and locking contact is short
Side be arranged in body frame, the side of locking contact length coordinates with adjustment handwheel, when locking contact by it is cocked when adjust handwheel
It can rotate, locking is played in groove when putting down on the inside of insertion adjustment handwheel.
The above-mentioned adjustable cleaning device preferred scheme of Pneumatic seeding apparatus dynamics, adjustment handwheel one side plants clearly dynamics provided with mark
Scale, and adjustment handwheel be provided with eccentric wheel.
The advantage of the invention is that：
1st, body frame assembly is connected by shell fragment, spring silk with the housing of feed mechanism for seed, and Seed-cleaning tool is floating structure with respect to discharge plate, is passed through
Elastic part is linked with housing, and deformation causes axially and radially there is a certain degree of scope of activities, reduces between seed and Seed-cleaning tool
Collision；
2nd, interior Seed-cleaning tool clear kind dynamics different with respect to the synchronous adjustment realization of seeding dish type hole both sides with outer Seed-cleaning tool, can be changed without
Different Crop seed and the varigrained reliable clear kind of same origin seed are realized in the case of discharge plate；
3rd, it is releasable connection between Seed-cleaning tool and tool rest, the same replaceable different Seed-cleaning tool models of tool rest adapt to more crop seeds
Dynamics requirement is planted with clear；
4th, coordinate provided with the fluctuating groove on locking contact and handle, the short side of contact is embedded in main frame body, compact conformation, during adjustment
The cocked long side ability rotary handle of contact, it is to avoid maloperation and the reliable location that inside and outside knife rest can be realized；
5th, adjustment handle has graduated scale to remember kind of a dynamics power, and eccentric wheel is arranged in handle, compact conformation, saves material weight
Gently；
6th, clear kind dynamics adjustment can be carried out without instrument, and adjustment is flexible, adapts to field hand operation；
7th, slide rail guiding positioning mechanism is provided between Seed-cleaning tool and body frame, clearance is reduced, being accurately positioned for inside and outside Seed-cleaning tool is realized；
8th, tool rest at by shell fragment, spring silk two in addition to positioning, and discharge plate side tool post part is provided with guide groove, and cleaning device is entered
Row supplement positioning with it is spacing；
9th, the outer panel of body frame assembly is provided with positioning drag reduction boss, it is ensured that discharge plate is accurately positioned with cleaning device and reduces both
Resistance to sliding during relative motion；
10th, the cleaning device is integral part, can integral demounting, be conveniently replaceable and non-maintaining in service life.Brief description of the drawings
Accompanying drawing is used for providing a further understanding of the present invention, and constitutes a part for specification, with embodiments of the invention
It is used to explain the present invention together, is not construed as limiting the invention.In the accompanying drawings：Fig. 1 illustrates for the operation principle of the present invention
Figure；Fig. 2 is integrally-built decomposition view；Fig. 3 is working condition rearview；Fig. 4 is working condition axle surveys view；Based on Fig. 5
Support body part drawing；Fig. 6 is outer Seed-cleaning tool seat axonometric drawing；Fig. 7 is interior Seed-cleaning tool seat axonometric drawing；Fig. 8 is Seed-cleaning tool seat and adjustment hand
Take turns matching relationship.
1. discharge plate in figure, the 2. adjustable cleaning devices of Pneumatic seeding apparatus dynamics, 3. adjustment handwheels, 4. body frames, 5. positioning
Shell fragment, 6. outer Seed-cleaning tools, Seed-cleaning tool seat in 7., Seed-cleaning tool in 8., 9. outer Seed-cleaning tools seats, 10. spacing springs thread, 11. dovetails are led
Rail, 12. locking contacts, 13. outer panels, 14. seeds, 15. eccentric wheels, 401. circle convex platforms, 402. guide rails are installed
Groove, 403. Seed-cleaning tools seat is perforated, 404. Location resilient piece mounting grooves, 405. springs silk stopper slot, and Seed-cleaning tool seat connects in 801.
Connect Rotational Cylindrical in post, 802., 803. inclined-planes, 901. dovetail grooves, 902. outer Seed-cleaning tool connecting poles, 903. outer rotations
Post.
Embodiment
The preferred embodiments of the present invention are illustrated below in conjunction with accompanying drawing, it will be appreciated that preferred reality described herein
Apply example to be merely to illustrate and explain the present invention, be not intended to limit the present invention.
With reference to Fig. 1, a kind of adjustable cleaning device 2 of Pneumatic seeding apparatus dynamics, for clearing up the seed outside the shape hole of discharge plate 1
14, it includes body frame 4, Seed-cleaning tool, adjustment mechanism and floating positioning device, and body frame 4 is used to connect as one all parts, clearly
Knife, adjustment mechanism and floating positioning device is planted to be arranged on body frame 4.
Body frame 4 includes main frame body and the outer panel 13 being connected with main frame body, is sketch plate, main frame body with reference to Fig. 5 main frame bodies
On have circle convex platform 401, Location resilient piece mounting groove 404, guide rail mounting groove 402, Seed-cleaning tool seat perforation 403 and spring silk stopper slot
405, circle convex platform 401 is two sections and is symmetricly set on the both sides of Location resilient piece mounting groove 404, and Seed-cleaning tool seat perforation 403 is distributed in
Both sides of Location resilient piece mounting groove 404 and positioned at the inner side of circle convex platform 401, spring silk stopper slot 405 is located at the outside of circle convex platform 401,
Main frame body another side is provided with two guide rail mounting grooves 402；With reference to Fig. 3, outer panel 13 is provided with and the cylindrical cooperation of discharge plate 1
Track slot is oriented to, track slot is oriented to provided with more than one positioning drag reduction boss 1301, row can be ensured using the enough outer panels 13 of this knot
Discharge plate 1 is accurately positioned with the adjustable cleaning device of Pneumatic seeding apparatus dynamics 2, and resistance to sliding when reducing the two relative motion.
Seed-cleaning tool includes interior Seed-cleaning tool 8 and outer Seed-cleaning tool 6, and interior Seed-cleaning tool 8 is connected through interior Seed-cleaning tool seat 7 with body frame 4, outer clear
Knife 6 is planted to be connected with body frame 4 through outer Seed-cleaning tool seat 9.
Adjustment mechanism includes adjustment handwheel 3, is detachably connected on body frame 4, is connected with Seed-cleaning tool, and drives interior Seed-cleaning tool
8 and the move toward one another of outer Seed-cleaning tool 6.It is major arc shape to adjust the outer rim of handwheel 3, and surface is evenly equipped with multiple teeth, and the adjustment one side of handwheel 3 is set
There is the clear scale for planting dynamics of mark, and adjustment handwheel 3 is provided with eccentric wheel 15.
Floating positioning device, including Location resilient piece 5 and spacing spring silk 10, Location resilient piece 5 is detachably connected on body frame 4,
The spacing middle part of spring silk 10 is detachably connected on body frame 4, and two ends are free end, and Location resilient piece 5 and spacing spring silk 10 are cooperatively formed
Stable four point positioning is to keep the adjustable cleaning device 2 of Pneumatic seeding apparatus dynamics with respect to the position of discharge plate 1 so as to reality
The normal performance of existing function.
Correspondence guide rail installs groove location and is provided with dovetail guide 11 on body frame 4, outer Seed-cleaning tool seat 9 be provided with dovetail groove 901,
Interior Seed-cleaning tool seat 7 is provided with two inclined-planes 803, and the inner side of dovetail guide 11 coordinates with inclined-plane to be slided, the outside of dovetail guide 11 and dovetail
Groove 901 is slidably connected.
Include outer Seed-cleaning tool seat main body with reference to Seed-cleaning tool seat 9 outside Fig. 6, outer Seed-cleaning tool seat main body one side is planted provided with clear outside two
Knife connecting pole 902, another side is provided with outer Rotational Cylindrical 903, and corresponding adjustment handwheel 3 surface is provided with the movement coordinated with Rotational Cylindrical
Groove, dovetail groove 901 is arranged in the one side with outer Rotational Cylindrical.Include interior Seed-cleaning tool seat main body with reference to Seed-cleaning tool seat 7 in Fig. 7,
Interior Seed-cleaning tool seat main body one side is provided with two interior Seed-cleaning tool seat connecting poles 801, and another side is provided with the interior Rotational Cylindrical with shifting chute
802。
With reference to Fig. 8, locking contact 12 is also included in the present embodiment, the short side of locking contact 12 is arranged in body frame 4, lock
The side that only contact 12 is grown coordinates with adjustment handwheel 3, and the side that adjustment handwheel 3 is connected with Seed-cleaning tool is provided with one along major arc complete cycle cloth
The groove put, groove close to center of circle side be equally distributed locking toothing 16, when locking contact 12 by it is cocked when adjust hand
Wheel 3 can be rotated, and locking is played in the groove of the inner side of insertion adjustment handwheel 3 when putting down.
The present invention is as a global facility, with standardization, generalization and seriation feature, is easy to choose to install and exchanges zero
Part, can realize the good conformity to different work operating mode, different kind subtypes and seed different-grain diameter of the same race.
Finally it should be noted that：The preferred embodiments of the present invention are the foregoing is only, are not intended to limit the invention,
Although the present invention is described in detail with reference to the foregoing embodiments, for those skilled in the art, it still may be used
To be modified to the technical scheme described in foregoing embodiments, or equivalent substitution is carried out to which part technical characteristic.
Within the spirit and principles of the invention, any modification, equivalent substitution and improvements made etc., should be included in the present invention's
Within protection domain.
Claims (8)
1. a kind of adjustable cleaning device of Pneumatic seeding apparatus dynamics, it is characterised in that including：
Body frame（4）；
Seed-cleaning tool, including interior Seed-cleaning tool（8）With outer Seed-cleaning tool（6）, interior Seed-cleaning tool（8）Through interior Seed-cleaning tool seat（7）With body frame（4）Even
Connect, outer Seed-cleaning tool（6）Through outer Seed-cleaning tool seat（9）With body frame（4）Connection；
Adjustment mechanism, including adjustment handwheel（3）, it is detachably connected on body frame（4）On, it is connected with Seed-cleaning tool, and drive interior clear kind
Knife（8）With outer Seed-cleaning tool（6）Move toward one another；With
Floating positioning device, including Location resilient piece（5）With spacing spring silk（10）, Location resilient piece（5）It is detachably connected on body frame（4）
On, spacing spring silk（10）Middle part is detachably connected on body frame（4）On.
2. the adjustable cleaning device of Pneumatic seeding apparatus dynamics according to claim 1, it is characterised in that：Seed-cleaning tool and body frame it
Between be provided with slide rail guiding positioning mechanism, slide rail guiding positioning mechanism includes two dovetail guides（11）, dovetail guide（11）It is removable
Unload connection body frame（4）On, outer Seed-cleaning tool seat（9）Provided with dovetail groove, Seed-cleaning tool seat（7）Provided with two inclined-planes, dovetail guide（11）
Inner side coordinates with inclined-plane to be slided, dovetail guide（11）Outside is slidably connected with dovetail groove.
3. the adjustable cleaning device of Pneumatic seeding apparatus dynamics according to claim 1, it is characterised in that：Outer Seed-cleaning tool seat（9）
Including outer Seed-cleaning tool seat main body, outer Seed-cleaning tool seat main body one side is provided with more than one outer Seed-cleaning tool connecting pole, and another side is provided with outer
Rotational Cylindrical, adjusts handwheel accordingly（3）Surface is provided with the shifting chute coordinated with outer Rotational Cylindrical, and dovetail groove is arranged on to be rotated with outer
In the one side of post.
4. the adjustable cleaning device of Pneumatic seeding apparatus dynamics according to claim 3, it is characterised in that：Interior Seed-cleaning tool seat（7）
Including interior Seed-cleaning tool seat main body, interior Seed-cleaning tool seat main body one side is provided with more than one interior Seed-cleaning tool connecting pole, another side be provided with
The interior Rotational Cylindrical that shifting chute coordinates.
5. the adjustable cleaning device of Pneumatic seeding apparatus dynamics according to claim 1, it is characterised in that：Body frame（4）Including master
Support body and the outer panel being detachably connected with main frame body（13）, main frame body is to have circle convex platform on sketch plate, main frame body（401）、
Location resilient piece mounting groove（404）, Seed-cleaning tool seat perforation（403）With spring silk stopper slot, circle convex platform（401）Set for two sections and symmetrically
Put in Location resilient piece mounting groove（404）Both sides, Seed-cleaning tool seat perforation（403）It is distributed in Location resilient piece mounting groove（404）Both sides and
Positioned at circle convex platform（401）Inner side, spring silk stopper slot is located at circle convex platform（401）Outside, main frame body another side is provided with two
Guide rail mounting groove（402）.
6. the adjustable cleaning device of Pneumatic seeding apparatus dynamics according to claim 5, it is characterised in that：Outer panel（13）On set
There is the guiding track slot with the cylindrical cooperation of discharge plate, be oriented to track slot provided with more than one positioning drag reduction boss（1301）.
7. according to any one of claim 1 to the 5 adjustable cleaning device of Pneumatic seeding apparatus dynamics, it is characterised in that：It is also
Including locking contact（12）, locking contact（12）Short side is arranged on body frame（4）In, locking contact（12）Long side and tune
Whole handwheel（3）Coordinate, when locking contact by it is cocked when adjust handwheel（3）It can rotate, insertion adjustment handwheel when putting down（3）Inner side
Groove in play locking.
8. according to any one of claim 1 to the 5 adjustable cleaning device of Pneumatic seeding apparatus dynamics, it is characterised in that：Adjustment
Handwheel one side is provided with the clear scale for planting dynamics of mark, and adjustment handwheel is provided with eccentric wheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360825.8A CN107079640B (en) | 2017-05-22 | 2017-05-22 | Adjustable clear kind of a device of pneumatic seed metering ware dynamics |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710360825.8A CN107079640B (en) | 2017-05-22 | 2017-05-22 | Adjustable clear kind of a device of pneumatic seed metering ware dynamics |
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| Publication Number | Publication Date |
|---|---|
| CN107079640A true CN107079640A (en) | 2017-08-22 |
| CN107079640B CN107079640B (en) | 2022-07-15 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710360825.8A Active CN107079640B (en) | 2017-05-22 | 2017-05-22 | Adjustable clear kind of a device of pneumatic seed metering ware dynamics |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108174659A (en) * | 2017-12-28 | 2018-06-19 | 湖南省作物研究所 | A kind of adjustable soybean planting disk |
| CN108551786A (en) * | 2018-06-14 | 2018-09-21 | 青岛农业大学 | The Pneumatic vegetable seeder of adjustable angle |
| CN110679248A (en) * | 2019-11-25 | 2020-01-14 | 吉林省农业机械研究院 | Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device |
| CN112913421A (en) * | 2021-01-27 | 2021-06-08 | 山东省农业机械科学研究院 | Electric-driven precision positioning fertilizer distributor, equipment and method |
| CN113661806A (en) * | 2021-09-24 | 2021-11-19 | 黑龙江八一农垦大学 | Multipurpose air-suction type miscellaneous bean precision seeder and seeding test device |
| CN114793566A (en) * | 2022-05-25 | 2022-07-29 | 安徽农业大学 | Self-disturbing seed tray with involute seed guide groove |
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| CN110679248A (en) * | 2019-11-25 | 2020-01-14 | 吉林省农业机械研究院 | Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device |
| CN110679248B (en) * | 2019-11-25 | 2022-03-11 | 吉林省农业机械研究院 | Flexible adjustment seed cleaning device suitable for pneumatic roller type seed sowing device |
| CN112913421A (en) * | 2021-01-27 | 2021-06-08 | 山东省农业机械科学研究院 | Electric-driven precision positioning fertilizer distributor, equipment and method |
| CN113661806A (en) * | 2021-09-24 | 2021-11-19 | 黑龙江八一农垦大学 | Multipurpose air-suction type miscellaneous bean precision seeder and seeding test device |
| CN113661806B (en) * | 2021-09-24 | 2024-05-14 | 黑龙江八一农垦大学 | Multipurpose air-suction type mixed bean precision planter and sowing test device |
| CN114793566A (en) * | 2022-05-25 | 2022-07-29 | 安徽农业大学 | Self-disturbing seed tray with involute seed guide groove |
| CN114793566B (en) * | 2022-05-25 | 2024-01-30 | 安徽农业大学 | Self-disturbing seed tray with involute seed guiding groove |
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| CN107079640B (en) | 2022-07-15 |
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