CN107155471A - A kind of transplanter automatic seedling taking device of suitable for various size seed plate - Google Patents
A kind of transplanter automatic seedling taking device of suitable for various size seed plate Download PDFInfo
- Publication number
- CN107155471A CN107155471A CN201710389490.2A CN201710389490A CN107155471A CN 107155471 A CN107155471 A CN 107155471A CN 201710389490 A CN201710389490 A CN 201710389490A CN 107155471 A CN107155471 A CN 107155471A
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- China
- Prior art keywords
- clamping jaw
- seedling taking
- cam
- gear
- connecting rod
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C11/00—Transplanting machines
- A01C11/02—Transplanting machines for seedlings
- A01C11/025—Transplanting machines using seedling trays; Devices for removing the seedlings from the trays
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/20—Reduction of greenhouse gas [GHG] emissions in agriculture, e.g. CO2
- Y02P60/21—Dinitrogen oxide [N2O], e.g. using aquaponics, hydroponics or efficiency measures
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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Transplanting Machines (AREA)
Abstract
A kind of transplanter automatic seedling taking device of suitable for various size seed plate, including the clip claw mechanism set by seedling taking body frame lower end, the clip claw mechanism include upper gripper jaw and lower clamping jaw；Clamping jaw fixed seat is fixed with upper gripper jaw, clamping jaw fixed seat is distributed in cam both sides by spring；The ball being close to cam is installed below clamping jaw fixed seat, and be connected with can be around tie point pivot link, connecting rod lower end is connected with trough of belt connecting rod, connecting rod and trough of belt rod hinge connection；Clamping jaw set is housed, the front end of clamping jaw set is annular ring, and annular ring is enclosed on lower clamping jaw on trough of belt connecting rod；The cam is fan-shaped raised provided with one section, and ball controls the opening and closing movement of clamping jaw by the opening angle of the both sides motor adjustment upper gripper jaw in cam, is realized by the folding of clamping jaw and pushes away seedling action.Seed plate adaptability of the gripping portions of the seedling picking mechanism of the present invention not only to plurality of specifications is high, moreover it is possible to be effectively reduced the damage ratio of seedling.
Description
Technical field
The present invention relates to agricultural machinery technological field, specifically a kind of transplanter of suitable for various size seed plate is automatic
Seedling taking device.
Background technology
Continued to develop with agrotechnical, transplantation technique is also more and more obvious compared to live superiority.Transplant not only
The breeding time of crop can be shortened, the influence of the extreme climate environments such as low temperature can be effectively shielded from, improve seedling into
Motility rate, and yield and the quality of crop can be effectively improved, with significant volume increase, the effect of increasing income.But, it is domestic at present
Transplanting machine be mostly semi-automatic, it is necessary to artificial seedling taking, throw seedling and transplanted, not only labor intensity greatly, inefficiency,
And operation quality also is difficult to ensure.Want to realize automatic transplanting, reduce labor intensity, improve operating efficiency, not only to study
Go out automatic seedling taking, seedling launching mechanism, also to ensure that developed device can be good at and send seed plate to match.But it is existing from
Dynamic seedling taking device does not account for this problem, can only carry out nursery from supporting seed plate when transplanting, then be moved again
Plant, and the specification of seed plate is relevant with the crop species of required transplanting, so such one-to-one so that transplanter is moved in crop
There is significant limitation in terms of cultivation, limit the use scope of transplanter.
The content of the invention
Specification species for the seed plate of in the market Plug seedling is various, and the size dimension of cavities is also different, causes
The versatility problem of poor of transplanter, the seed plate adaptability of the gripping portions of seedling picking mechanism of the invention not only to plurality of specifications
It is high, moreover it is possible to be effectively reduced the damage ratio of seedling.
The present invention is for the technical scheme that is used of solution above-mentioned technical problem：
A kind of transplanter automatic seedling taking device of suitable for various size seed plate, including the clip claw mechanism set by seedling taking body frame lower end,
The clip claw mechanism includes upper gripper jaw, and the lower end of upper gripper jaw is provided with lower clamping jaw, regulation is provided between upper gripper jaw and lower clamping jaw
The adjusting gasket of open width；Clamping jaw fixed seat is fixed with the upper gripper jaw, clamping jaw fixed seat is distributed in cam by spring
Both sides；The ball being close to cam is installed below clamping jaw fixed seat, and be connected with can be under tie point pivot link, connecting rod
End is connected with trough of belt connecting rod, connecting rod and trough of belt rod hinge connection；Clamping jaw set is housed, the front end of clamping jaw set is annular on trough of belt connecting rod
Circle, annular ring is enclosed on lower clamping jaw；The cam is fan-shaped raised provided with one section, and ball passes through the both sides motor adjustment in cam
The opening angle of upper gripper jaw controls the opening and closing movement of clamping jaw, when upper gripper jaw is in open configuration, clamping jaw fixed seat drivening rod
Carried upwards with trough of belt connecting rod, so that the upward motion of clamping jaw set, when upper gripper jaw is in closed state, clamping jaw fixed seat, which drives, to be connected
Bar and trough of belt connecting rod are pushed down on, so that clamping jaw set is moved downward, seedling action is pushed away to realize.
Described gear-box includes gear wheel, central gear, planetary gear and planetary gear shaft, the gear wheel and planet
Gear is engaged, and planetary gear is engaged with central gear；Gear wheel is fixed on gear-box, is connected with power input shaft, planet tooth
Wheel shaft stretches out gear-box and is connected with crank；The other end of the crank and the centre of seedling taking body frame are connected, and cam is arranged on
The centre of seedling taking body frame simultaneously links together with crank.
The transplanter automatic seedling taking device of suitable for various size seed plate of the present invention, provided with the support being connected with transplanter, institute
The smooth side of support is stated for power input shaft, is connected with the gear-box of opposite side；In gear-box side, support and curve road plan
It is connected.
The planetary gear shaft is stretched out gear-box and is connected with crank, the other end of the crank and the centre of seedling taking body frame
It is connected, cam is arranged on the centre of seedling taking body frame and linked together with crank.
The other end of the crank and the centre of seedling taking body frame are connected, cam be arranged on seedling taking body frame centre and with song
Handle is linked together, and the roller of front end installation and the guide clearance of curve road plan of the seedling taking body frame coordinate, and can be along guide rail
Slide.
The upper gripper jaw includes upper left clamping jaw and upper right clamping jaw.
Beneficial effect is：
1st, the automatic seedling taking device of existing transplanter is non-adjustable, is especially opening size and can not adjusting for clamping jaw.Seed plate is empty
The specification size in cave is relevant with the crop species to be transplanted, so in face of the seedlings nursing plate of in the market plurality of specifications, transplanter
Very big limitation has been obtained using scope.The transplanter automatic seedling taking device of the suitable for various size seed plate of the present invention passes through regulation
The size of distance improves the use scope of transplanter, while one to adapt to the hole specification of each seedling disk between clamping jaw tip
Damage of the clamping jaw to seedling can be reduced by determining degree in degree.
2nd, the uni-drive gear box and clip claw mechanism of the transplanter automatic seedling taking device of suitable for various size seed plate of the present invention are matched somebody with somebody
Design is closed, using the gear mechanism of internal messing, compact conformation, small volume, stable movement, noise are low, shock resistance and vibratility are strong,
And service life is long.
3rd, in addition, the transplanter automatic seedling taking device of suitable for various size seed plate of the present invention controls to push away seedling by cam
Mode make it that the design, manufacture and processing cost of cam are higher, and cam is contacted with roller for higher pair, weares and teares more serious.This hair
The motion that clamping jaw covers is controlled in bright by the opening and closing of clamping jaw and pushes away seedling action so as to realize so that the design of cam, manufacture and is added
Work cost is substantially reduced.
Brief description of the drawings
Fig. 1 is the clip claw mechanism structural representation of automatic seedling taking device of the present invention；
Fig. 2 is the axonometric drawing of the present invention；
Fig. 3 is the front view of the present invention；
Fig. 4 is the transmission internal structural representation of automatic seedling taking device of the present invention；
Mark is in figure：1. gear-box, 2. power input shafts, 3. supports, 4. curve road plan, 5. rollers, 6. seedling taking body frames, 7. is convex
Wheel, 8. balls, 9. clamping jaw fixed seats, 10. connecting rods, 11. trough of belt connecting rods, 12. clamping jaw sets, 13. times clamping jaws, 14. adjusting gaskets,
15. upper gripper jaw, 16. springs, 17. cranks, 18. planetary gear shafts, 19. shanks of bolt, 20. internal gears, 21. central gears, 22. rows
Star gear.
Embodiment
A kind of transplanter automatic seedling taking device of suitable for various size seed plate, including the lower end of seedling taking body frame 6 are provided with clamping jaw
Mechanism, the clip claw mechanism includes being respectively fixed with clamping jaw fixed seat 9, two clamping jaw fixed seats 9 on upper gripper jaw 15, upper gripper jaw 15
Tense to be distributed in the both sides of cam 7, clamping jaw fixed seat 9 with spring 16 and ball 8 is installed, be close to cam 7, the clamping jaw is consolidated
Reservation 9 is connected with connecting rod 10, and connecting rod 10 can be rotated at tie point, and the lower end of connecting rod 10 is connected with trough of belt connecting rod 11, left linkages
10 and trough of belt connecting rod 11 be hinged on one point, on trough of belt connecting rod 11 equipped with clamping jaw set 12, clamping jaw set 12 front end be annular, be enclosed on
On lower clamping jaw 13, there is one section of fan-shaped projection on the cam 7, ball 8 is by adjusting upper gripper jaw 15 in two lateral movements of cam 7
Opening angle control clamping jaw opening and closing movement, when upper gripper jaw 15 be in open configuration when, the He of 9 drivening rod of clamping jaw fixed seat 10
Trough of belt connecting rod 11 is carried upwards, so that the motion upwards of clamping jaw set 12, when upper gripper jaw 15 is in closed state, clamping jaw fixed seat 9
Drivening rod 10 and trough of belt connecting rod 11 are pushed down on, so that clamping jaw set 12 is moved downward, seedling action, the upper gripper jaw are pushed away to realize
15 lower end is provided with lower clamping jaw 13, and the adjusting gasket 14 of regulation open width is provided between upper gripper jaw 15 and lower clamping jaw 13.
Described gear-box 1 has gear wheel 20, central gear 21, planetary gear 22 and planetary gear shaft 18, wherein greatly
Gear 20 is engaged with planetary gear 22, and planetary gear 22 is engaged with central gear 21, and gear wheel 20 is fixed on gear-box 1 with moving
Power input shaft 2 is connected, and planetary gear shaft 18 is stretched out gear-box 1 and is connected with crank 17；The other end and seedling taking of the crank 17
The centre of body frame 6 is connected, and cam 7 is arranged on the centre of seedling taking body frame 6 and is linked together with crank 17.
Provided with the support 3 being connected with transplanter, the smooth side of the support 3 is power input shaft 2, the gear with opposite side
Case 1 is connected, and in the side of gear-box 1, support 3 is connected with curve road plan 4.
Planetary gear shaft 18 is stretched out gear-box 1 and is connected with crank 17, the other end and the seedling taking body frame 6 of the crank 17
Centre is connected, and cam 7 is arranged on the centre of seedling taking body frame 6 and is linked together with crank 17.
The other end of the crank 17 and the centre of seedling taking body frame 6 are connected, and cam 7 is arranged on the centre of seedling taking body frame 6
And be linked together with crank 17, the roller 5 of front end installation and the guide clearance of curve road plan 4 of the seedling taking body frame 6 coordinate,
And can be slided along guide rail.
Embodiment
As Figure 1-4, including with transplanter the support 3 being connected, the smooth side of the support 3 is power input shaft 2, with
The gear-box 1 of opposite side is connected, in the side of gear-box 1, and support 3 is connected with curve road plan 4, and described gear-box 1 has greatly
Gear 20, central gear 21, planetary gear 22 and planetary gear shaft 18, wherein gear wheel 20 are engaged with planetary gear 22, OK
Star gear 22 is engaged with central gear 21, and gear wheel 20 is fixed on gear-box 1 to be connected with power input shaft 2, planetary gear shaft
18 stretching gear-boxes 1 are connected with crank 17, and the other end of the crank 17 and the centre of seedling taking body frame 6 are connected, and cam 7 is pacified
It is linked together mounted in the centre of seedling taking body frame 6 and with crank 17, the roller 5 and curve of the front end installation of the seedling taking body frame 6
The guide clearance of road plan 4 coordinates, and can be slided along guide rail, and the lower end of seedling taking body frame 6 is separately installed with left and right upper gripper jaw 15, left and right
Clamping jaw fixed seat 9 is respectively fixed with upper gripper jaw 15, two clamping jaw fixed seats 9 are tensed with spring 16 and are distributed in the both sides of cam 7, are pressed from both sides
Ball 8 is installed in pawl fixed seat 9, is close to cam 7, the clamping jaw fixed seat 9 is also associated with connecting rod 10, connecting rod 10 can be around
Rotated at tie point, the lower end of connecting rod 10 is connected with trough of belt connecting rod 11, and left linkages 10 and trough of belt connecting rod 11 are hinged on one point, trough of belt
Equipped with clamping jaw set 12 on connecting rod 11, the front end of clamping jaw set 12 is annular, is enclosed on lower clamping jaw 13, has one section on the cam 7
Fan-shaped raised, ball 8 controls the folding of clamping jaw to move by adjusting the opening angle of upper gripper jaw 15 in two lateral movements of cam 7
Make, when upper gripper jaw 15 is in open configuration, the drivening rod 10 of clamping jaw fixed seat 9 and trough of belt connecting rod 11 are carried upwards, so that folder
The motion upwards of pawl set 12, when upper gripper jaw 15 is in closed state, the drivening rod 10 of clamping jaw fixed seat 9 and trough of belt connecting rod 11 are downward
Push away, so that clamping jaw set 12 is moved downward, seedling action is pushed away to realize, the lower end of the upper gripper jaw 15 is provided with lower clamping jaw 13, upper,
Adjusting gasket 14 is installed between lower clamping jaw, the open width of lower clamping jaw 13 carried out by changing the quantity of adjusting gasket 14
Regulation, so as to adapt to the size in many seedling disk holes, damage when can also mitigate seedling taking to a certain extent to seedling.
Automatic seedling taking device of the present invention, operationally, power from power input shaft 2 are incoming, and gear wheel 20 is fixed on gear
It is connected on case 1 with power input shaft 2, gear-box 1, gear wheel 20 are rotated together with power input shaft 2, planetary gear 22 and canine tooth
The engagement of wheel 20 rotates around central gear 21 together, and planetary gear shaft 18 drives crank 17 to rotate, and roller 5 is in curve road plan 4
Move to drive seedling taking body frame 6 to do identical motion.Crank 17 is rotated with moving cam 7, and cam 7 is promoted and rolled in clamping jaw fixed seat 9
The motion of pearl 8, to adjust the opening angle of upper gripper jaw 15, so as to realize the clamping to seedling.The both sides of cam 7 are designed with certain angle
The sector of degree is raised, and during the seedling taking stage, i.e., when ball 8 is rolled in this section of projection of cam 7, clamping jaw fixed seat 9 is with upper folder
Pawl 15 is separated to both sides, and lower clamping jaw 13, which comes closer, makes the distance of the lower end of clamping jaw 13 diminish, and reaches the effect for stepping up Plug seedling,
The drivening rod 10 of clamping jaw fixed seat 9 and trough of belt connecting rod 11 are carried upwards simultaneously, clamping jaw is covered 12 motions upwards；When throwing the seedling stage, i.e.,
When cam 7 rolls across this section of fan-shaped projection, clamping jaw fixed seat 9 comes closer with upper gripper jaw 15 makes lower clamping jaw 13 outwards separate, and makes
The distance of the lower end of clamping jaw 13 becomes big, reaches the effect for unclamping Plug seedling, while the drivening rod 10 of clamping jaw fixed seat 9 and trough of belt connect
Bar 11 is pushed down on, and clamping jaw is covered 12 and is moved downward, seedling action is pushed away to realize.In this process, left and right is stepped up between fixed seat 9
Spring 16 ball 8 can be kept to be close to 7 liang of lateral movements of cam, step up on seat 7 clamping jaw set 12 can throw the seedling stage push away
Fall the seedling not fallen, and the mud being bonded on clamping jaw, be that the seedling taking throwing seedling in next cycle is prepared.Upper gripper jaw 15 and lower clamping jaw 13
Between adjusting gasket 14 is installed, instantly clamping jaw 13 end distance too it is small it is easy damage seedling when, adjust pad 14 can be passed through
Quantity it is most suitable reach the end distance between lower clamping jaw 13.
Claims (6)
1. a kind of transplanter automatic seedling taking device of suitable for various size seed plate, including seedling taking body frame（6）Clamping jaw set by lower end
Mechanism, it is characterised in that：The clip claw mechanism includes upper gripper jaw（15）, upper gripper jaw（15）Lower end lower clamping jaw is installed（13）,
Upper gripper jaw（15）With lower clamping jaw（13）Between be provided with regulation open width adjusting gasket（14）；The upper gripper jaw（15）It is upper solid
Surely there is clamping jaw fixed seat（9）, clamping jaw fixed seat（9）Pass through spring（16）It is distributed in cam（7）Both sides；Clamping jaw fixed seat（9）'s
Lower section is provided with and cam（7）The ball being close to（8）, and be connected with can be around tie point pivot link（10）, connecting rod（10）Lower end
It is connected with trough of belt connecting rod（11）, connecting rod（10）With trough of belt connecting rod（11）It is hinged；Trough of belt connecting rod（11）It is upper that clamping jaw set is housed（12）, folder
Pawl set（12）Front end be annular ring, annular ring is enclosed on lower clamping jaw（13）On；The cam（7）It is fan-shaped raised provided with one section,
Ball（8）By in cam（7）Both sides motor adjustment upper gripper jaw（15）Opening angle control clamping jaw opening and closing movement, when upper
Clamping jaw（15）During in open configuration, clamping jaw fixed seat（9）Drivening rod（10）With trough of belt connecting rod（11）Carry upwards, so that folder
Pawl set（12）Motion, works as upper gripper jaw upwards（15）During in closed state, clamping jaw fixed seat（9）Drivening rod（10）Connect with trough of belt
Bar（11）Push down on, so that clamping jaw set（12）Move downward, seedling action is pushed away to realize.
2. the transplanter automatic seedling taking device of suitable for various size seed plate as claimed in claim 1, it is characterised in that：Described tooth
Roller box（1）Including gear wheel（20）, central gear（21）, planetary gear（22）And planetary gear shaft（18）, the gear wheel
（20）With planetary gear（22）Engagement, planetary gear（22）With central gear（21）Engagement；Gear wheel（20）It is fixed on gear-box
（1）On, with power input shaft（2）It is connected, planetary gear shaft（18）Stretch out gear-box（1）With crank（17）It is connected；The song
Handle（17）The other end and seedling taking body frame（6）Centre be connected, cam（7）Installed in seedling taking body frame（6）Centre and with song
Handle（17）Link together.
3. the transplanter automatic seedling taking device of suitable for various size seed plate as claimed in claim 2, it is characterised in that：Provided with shifting
The connected support of cultivation machine（3）, the support（3）Smooth side is power input shaft（2）, the gear-box with opposite side（1）It is connected
Connect；In gear-box（1）Side, support（3）With curve road plan（4）It is connected.
4. the transplanter automatic seedling taking device of suitable for various size seed plate as claimed in claim 3, it is characterised in that：The planet
Gear shaft（18）Stretch out gear-box（1）With crank（17）It is connected, the crank（17）The other end and seedling taking body frame（6）In
Between be connected, cam（7）Installed in seedling taking body frame（6）Centre and and crank（17）Link together.
5. the transplanter automatic seedling taking device of suitable for various size seed plate as claimed in claim 4, it is characterised in that：The crank
（17）The other end and seedling taking body frame（6）Centre be connected, cam（7）Installed in seedling taking body frame（6）Centre and and crank
（17）It is linked together, the seedling taking body frame（6）Front end install roller（5）With curve road plan（4）Guide clearance coordinate,
And can be slided along guide rail.
6. as claimed in claim 1 with the transplanter automatic seedling taking device of plurality of specifications seed plate, it is characterised in that：The upper gripper jaw
（15）Including upper left clamping jaw and upper right clamping jaw（15）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389490.2A CN107155471B (en) | 2017-05-27 | 2017-05-27 | Be suitable for automatic seedling device of getting of transplanter of multiple specification seedling tray |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710389490.2A CN107155471B (en) | 2017-05-27 | 2017-05-27 | Be suitable for automatic seedling device of getting of transplanter of multiple specification seedling tray |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107155471A true CN107155471A (en) | 2017-09-15 |
| CN107155471B CN107155471B (en) | 2023-04-11 |
Family
ID=59821959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710389490.2A Active CN107155471B (en) | 2017-05-27 | 2017-05-27 | Be suitable for automatic seedling device of getting of transplanter of multiple specification seedling tray |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107155471B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801454A (en) * | 2017-11-15 | 2018-03-16 | 河南科技大学 | A kind of transplanter seedling taking and seedling launching mechanism |
| CN112673776A (en) * | 2021-01-19 | 2021-04-20 | 湖南农业大学 | Pot seedling placing and planting machine for rape |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008154533A (en) * | 2006-12-25 | 2008-07-10 | Kubota Corp | Apparatus for taking out seedling for transplanter |
| CN106068844A (en) * | 2016-07-28 | 2016-11-09 | 石河子大学 | A kind of planet gear type potted tray seedling transplanter automatic seedling taking device |
| CN206923272U (en) * | 2017-05-27 | 2018-01-26 | 河南科技大学 | A kind of transplanter automatic seedling taking device of suitable for various size seed plate |
-
2017
- 2017-05-27 CN CN201710389490.2A patent/CN107155471B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008154533A (en) * | 2006-12-25 | 2008-07-10 | Kubota Corp | Apparatus for taking out seedling for transplanter |
| CN106068844A (en) * | 2016-07-28 | 2016-11-09 | 石河子大学 | A kind of planet gear type potted tray seedling transplanter automatic seedling taking device |
| CN206923272U (en) * | 2017-05-27 | 2018-01-26 | 河南科技大学 | A kind of transplanter automatic seedling taking device of suitable for various size seed plate |
Non-Patent Citations (1)
| Title |
|---|
| 孙磊;毛罕平;丁文芹;胡建平;刘立晶;吴福华;: "穴盘苗自动移栽机取苗爪工作参数试验研究" * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107801454A (en) * | 2017-11-15 | 2018-03-16 | 河南科技大学 | A kind of transplanter seedling taking and seedling launching mechanism |
| CN107801454B (en) * | 2017-11-15 | 2023-09-12 | 河南科技大学 | Seedling taking and throwing device for transplanting machine |
| CN112673776A (en) * | 2021-01-19 | 2021-04-20 | 湖南农业大学 | Pot seedling placing and planting machine for rape |
Also Published As
| Publication number | Publication date |
|---|---|
| CN107155471B (en) | 2023-04-11 |
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