CN108901225A - A kind of sweet potato ridge forming machine - Google Patents
A kind of sweet potato ridge forming machine Download PDFInfo
- Publication number
- CN108901225A CN108901225A CN201810946021.0A CN201810946021A CN108901225A CN 108901225 A CN108901225 A CN 108901225A CN 201810946021 A CN201810946021 A CN 201810946021A CN 108901225 A CN108901225 A CN 108901225A
- Authority
- CN
- China
- Prior art keywords
- ridging
- rack
- profiling
- sleeve
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/02—Combined machines with two or more soil-working tools of different kind
- A01B49/022—Combined machines with two or more soil-working tools of different kind at least one tool being actively driven
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01B—SOIL WORKING IN AGRICULTURE OR FORESTRY; PARTS, DETAILS, OR ACCESSORIES OF AGRICULTURAL MACHINES OR IMPLEMENTS, IN GENERAL
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a kind of sweet potato ridge forming machines, including rack, suspension arrangement, gearbox, rotary cultivator attachment, particle medicine-chest, regulating device, fertilizer box, power drive system, walking wheel disc, film covering device, film pressing device, covering device, ridger, suspension arrangement is equipped with above the front end of rack, there are two the identical particle medicine-chests of size for the two sides crossbeam installation of suspension arrangement, particle medicine-chest is affixed by bolt with suspension arrangement, particle medicine-chest rear is equipped with fertilizer box, the back side of fertilizer box is equipped with and unloads fertile funnel, the lower end of the fertilizer box is equipped with rotary cultivator attachment, and the particle medicine-chest, regulating device is equipped on fertilizer box, gearbox is installed in rack below the suspension arrangement, the gearbox is connected with rotary cultivator attachment；The rack at the fertilizer box rear is equipped with ridger.The present invention can be reduced labor intensity, improve ridging flatness, the operation is stable, while applying fertilizer to soil, improve working efficiency.
Description
Technical field
The present invention relates to agricultural mechanical field more particularly to a kind of sweet potato ridge forming machines.
Background technique
Currently, agricultural product demand constantly increases, and cultivated area is constantly reduced, water resource as China human mortality is continuously increased
More inadequate, ecological environment is worsening.China's grain demand is faced with immense pressure, and grain supply and demand are chronically at tight equilibrium-like
State.Sweet potato less investment, output is more, and the edible dry matter of unit area occupies first of various crops.With Chinese national economy
Sustainable growth, the continuous adjustment and optimization of agricultural structure, sweet potato is in the effect for ensureing national food security and energy security
Increasingly burst.Sweet potato not only has cultivated area big, the big advantage of yield potential, and healthcare function is good, Transform efficiency
Height, in addition to being used as feed and health food, or ideal starch resource and energy crop.Many experts think：Sweet potato is into
For one of 21 century optimal food, meanwhile, sweet potato is also one of most important renewable energy raw material.
Summary of the invention
The purpose of the present invention is to provide a kind of sweet potato ridge forming machines, to solve the problems mentioned in the above background technology.
To achieve the above object, the present invention provides the following technical solutions：
A kind of sweet potato ridge forming machine, including rack, suspension arrangement, gearbox, rotary cultivator attachment, particle medicine-chest, regulating device, fertilizer
Hopper, power drive system, walking wheel disc, film covering device, film pressing device, covering device, ridger.
Suspension arrangement is equipped with above the front end of rack, there are two size identical for the two sides crossbeam installation of suspension arrangement
Grain medicine-chest, particle medicine-chest are affixed by bolt with suspension arrangement.
Particle medicine-chest rear is equipped with fertilizer box, and the back side of fertilizer box, which is equipped with, unloads fertile funnel, the lower end of the fertilizer box
Regulating device is equipped with equipped with rotary cultivator attachment, and on the particle medicine-chest, fertilizer box.
Gearbox is installed, the gearbox is connected with rotary cultivator attachment in the rack below the suspension arrangement；The fertilizer
The rack at hopper rear is equipped with ridger, and the film covering device is located at the rear of ridger, and the rear of film covering device
Equipped with covering device.
The rack be equipped with power drive system, power drive system include live axle, transmission shaft, two sprocket wheels with
And the chain of two sprocket wheels is connected, the both ends of the transmission shaft and live axle are connect with rack, and the two sides of live axle are equal
Equipped with walking wheel disc, one of sprocket wheel is fixed together with live axle, another sprocket wheel links together with transmission shaft, institute
The output shaft for stating transmission shaft and gearbox is drivingly connected.
Further, the regulating device includes outer groove-wheel, shell and operation handle, and the shell is the leakage of top opening
It is bucket-shaped, and the top of shell and the bottom plate of shell are affixed, and outer groove-wheel is movably equipped in shell, outer groove is stretched out in the outer end of outer groove-wheel
It takes turns and is connected with operation handle.
Further, the rotary cultivator attachment includes rotary tillage main shaft, rotary blade, rotary blade fixing seat, and rotary blade fixing seat is in
Double-spiral structure is welded on rotary tillage main shaft, and rotary blade is bolted with rotary blade fixing seat.
Further, the ridger includes ridging profiling mainboard, plate, ridging profiling side plate and ridging in ridging profiling
Copying device, the ridging profiling mainboard is bar shaped plate, and ridge copying mechanism has been distributed in the bottom surface of ridging profiling mainboard, is risen
The side both ends of ridge profiling mainboard be equipped with ridging profiling side plate, the side of ridging profiling mainboard be located at two blocks of ridging profiling side plates it
Between.
Described ridge copying mechanism includes the first ridging plate, the second ridging plate, squeeze board, the top surface of the squeeze board and pressure
Solid plate bottom surface is affixed, and the two sides of squeeze board tilt separately down is connected with the first ridging plate and the second ridging plate.
Further, the film covering device includes connecting rod, sleeve, connecting stud, spring, and the connecting rod is L shape bar,
And the horizontal side pole of connecting rod is connect with rack, one end of the connecting stud and the longitudinal rod bottom end of connecting rod are affixed, and even
It connects and is arranged with spring and sleeve in the middle part of stud, sleeve is hollow tapered tubular, and the spring is located at connecting rod and sleeve
Between, outwardly, the other end of the connecting stud is equipped with locking nut for described lesser one end of sleeve diameter.
Further, the film pressing device includes strut and the idler wheel for being located at strut bottom end, the top of the strut and machine
Frame rotation connection.
Further, the covering device includes inserted link and the earthing scraper plate for being located at inserted link bottom end, the rear end of rack end
End is equipped with sleeve, has threaded hole on sleeve, inserted link is inserted into sleeve, and inserted link is bolted with sleeve.
The beneficial effects of the invention are as follows：
(1) a kind of sweet potato ridge forming machine proposed by the present invention can be reduced labor intensity, improve ridging flatness, can be greatly
Kinetic equation loss is reduced, works more stable, improves the safety and stability of complete machine.
(2) present invention is equipped with fertilizer box and particle medicine-chest, simplifies fertilising application process, can reduce pesticide to the damage of human body
Wound；The walking wheel disc of setting can drive fertilizer box and particle medicine-chest, keep the uniformity of fertilising application, can be reduced chemical fertilizer and pesticide
Unnecessary waste.
(3) present invention combines rotary cultivator attachment, ridger, fertilising device for administration of drugs, film covering device etc.,
The functions such as rotary tillage, ridging, fertilising application, overlay film can be achieved, simplify the process of sweet potato site preparation, reduce labor intensity, improve
Working efficiency.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings：
Fig. 1 is overall structure diagram of the invention；
Fig. 2 is overall structure diagram of the invention；
Fig. 3 is rotary cultivator attachment structural schematic diagram of the invention；
Fig. 4 is regulating device structural schematic diagram of the invention；
Fig. 5 is ridger structural schematic diagram of the invention；
Fig. 6 is film covering device structural schematic diagram of the invention.
In figure：Suspension arrangement 1, rotary cultivator attachment 3, particle medicine-chest 4, regulating device 5, fertilizer box 6, rack 7, covers gearbox 2
Native scraper plate 8, power drive system 9, walking wheel disc 10, film covering device 11, film pressing device 12, covering device 13, ridger 14,
It unloads fertile funnel 15, ridging profiling side plate 16, ridging profiling mainboard 17, plate 18 in ridging profiling, play ridge copying mechanism 19, the first
Ridge plate 20, squeeze board 21, the second ridging plate 22, rotary tillage main shaft 23, rotary blade 24, rotary blade fixing seat 25, outer groove-wheel 26, shell
27, operation handle 28, connecting rod 29, locking nut 30, sleeve 31, connecting stud 32, spring 33.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Referring to Fig. 1-6, a kind of sweet potato ridge forming machine, including rack 7, suspension arrangement 1, gearbox 2, rotary cultivator attachment 3, particle medicinal
Case 4, regulating device 5, fertilizer box 6, power drive system 9, walking wheel disc 10, film covering device 11, film pressing device 12, covering device
13, ridger 14.
Suspension arrangement 1 is equipped with above 7 front end of rack, there are two size is identical for the two sides crossbeam installation of suspension arrangement 1
Particle medicine-chest 4, particle medicine-chest 4 and suspension arrangement 1 are affixed by bolt.
4 rear of particle medicine-chest is equipped with fertilizer box 6, and the back side of fertilizer box 6, which is equipped with, unloads fertile funnel 15, the fertilizer box 6
Lower end be equipped with rotary cultivator attachment 3, and be equipped with regulating device 5 on the particle medicine-chest 4, fertilizer box 6.
Gearbox 2 is installed in the rack 7 of 1 lower section of suspension arrangement, the gearbox 2 is connected with rotary cultivator attachment 3；Institute
The rack 7 for stating 6 rear of fertilizer box is equipped with ridger 14, and the film covering device 11 is located at the rear of ridger 14, and covers
The rear of film device 11 is equipped with covering device 13.
The rack 7 is equipped with power drive system 9, and power drive system 9 includes live axle, transmission shaft, two chains
The both ends of the chain of two sprocket wheels of wheel and connection, the transmission shaft and live axle are connect with rack 7, and the two of live axle
Side is equipped with walking wheel disc, and one of sprocket wheel is fixed together with live axle, another sprocket wheel and transmission shaft are connected to one
It rises.
Further, the regulating device 5 includes outer groove-wheel 26, shell 27 and operation handle 28, and the shell 27 is top
Open funnel-form is held, and the top of shell 27 and the bottom plate of shell 27 are affixed, and outer groove-wheel 26, outer groove are movably equipped in shell 27
The outer end of wheel 26 stretches out outer groove-wheel 26 and is simultaneously connected with operation handle 28, when use manual rotational handle 28, to adjust outer groove-wheel
26, to achieve the effect that adjust blanking velocity.
Further, the rotary cultivator attachment includes rotary tillage main shaft 23, rotary blade 24, rotary blade fixing seat 25, and rotary blade is solid
Reservation 25 is welded on rotary tillage main shaft in double-spiral structure, and rotary blade 24 is bolted with rotary blade fixing seat 25.
Further, the ridger 14 includes plate 18, ridging profiling side plate in ridging profiling mainboard 17, ridging profiling
16 and a ridge copying mechanism 19 is played, the ridging profiling mainboard 17 is bar shaped plate, and the bottom surface of ridging profiling mainboard 17 is distributed with
Play ridge copying mechanism 19, the side both ends of ridging profiling mainboard 17 are equipped with ridging profiling side plate 16, and the one of ridging profiling mainboard 17
Side is located between two blocks of ridging profiling side plates 16.
Described ridge copying mechanism includes the first ridging plate 20, the second ridging plate 22, squeeze board 21, the squeeze board 21
Top surface and 21 bottom surface of squeeze board are affixed, and the two sides of squeeze board 21 tilt separately down is connected with the first ridging plate 20 and the second ridging
Plate 22.
Further, the film covering device 11 includes connecting rod 29, sleeve 31, connecting stud 32, spring 33, the connection
Bar 29 is L shape bar, and the horizontal side pole of connecting rod 29 is connect with rack 7, one end and the connecting rod 29 of the connecting stud 32
Longitudinal rod bottom end is affixed, and the middle part of connecting stud 32 is arranged with spring 33 and sleeve 31, and sleeve 31 is hollow tapered tubular,
And the spring 33 is between connecting rod 29 and sleeve 31, the lesser one end of 31 diameter of sleeve outwardly, the connection spiral shell
The other end of column 32 is equipped with locking nut 30；Film covering device 11 mainly carries out film coating operation to the ridge risen, and it is strong can to reduce labour
Degree, improves labor efficiency.
Further, the film pressing device 12 includes strut and is located at the idler wheel of strut bottom end, the top of the strut with
The rotation connection of rack 7；It is adjustable the rate of tension of press mold, facilitates the earthing of subsequent covering device.
Further, the covering device 13 includes inserted link and the earthing scraper plate 8 for being located at inserted link bottom end, the rear end of rack
End is equipped with sleeve, has threaded hole on sleeve, inserted link is inserted into sleeve, and inserted link is bolted with sleeve, covering device
13 can be to the mulch suppression of soil completed, and covering device can adjust upper-lower height, to adjust earthing amount, reduces artificial
The workload of earthing improves working efficiency.
In the use of the present invention, walking wheel disc is mounted on live axle, the first sprocket wheel, transmission shaft are housed on live axle
It is upper to be equipped with in the second sprocket wheel of the first sprocket wheel transmission connection on live axle, it is also equipped on transmission shaft under driving fertilizer box
The third sprocket wheel of fertilizer and the 4th sprocket wheel of driving particle medicine-chest prescribe medicine, when work the rotation of walking wheel disc to drive live axle,
Transmission shaft is driven by the chain between the first sprocket wheel and the second sprocket wheel, to drive fertilizer box, particle medicine-chest prescribe medicine.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (7)
1. a kind of sweet potato ridge forming machine, it is characterised in that：Including rack (7), suspension arrangement (1), gearbox (2), rotary cultivator attachment
(3), particle medicine-chest (4), regulating device (5), fertilizer box (6), power drive system (9), walking wheel disc (10), film covering device
(11), film pressing device (12), covering device (13), ridger (14)；
It is equipped with suspension arrangement (1) above rack (7) front end, there are two size phases for the two sides crossbeam installation of suspension arrangement (1)
Same particle medicine-chest (4), particle medicine-chest (4) are affixed by bolt with suspension arrangement (1)；
Particle medicine-chest (4) rear is equipped with fertilizer box (6), and the back side of fertilizer box (6), which is equipped with, unloads fertile funnel (15), the fertilizer
The lower end of case (6) is equipped with rotary cultivator attachment (3), and is equipped with regulating device (5) on the particle medicine-chest (4), fertilizer box (6)；
It is equipped with gearbox (2) in rack (7) below the suspension arrangement (1), the gearbox (2) and rotary cultivator attachment (3)
It is connected；The rack (7) at fertilizer box (6) rear is equipped with ridger (14), and the film covering device (11) is located at ridging dress
The rear of (14) is set, and the rear of film covering device (11) is equipped with covering device (13)；
The rack (7) is equipped with power drive system (9), and power drive system (9) includes live axle, transmission shaft, two
The both ends of sprocket wheel and the chain for connecting two sprocket wheels, the transmission shaft and live axle are connect with rack (7), live axle
Two sides be equipped with walking wheel disc, one of sprocket wheel is fixed together with live axle, another sprocket wheel and transmission axis connection
Together.
2. a kind of sweet potato ridge forming machine according to claim 1, it is characterised in that：The regulating device (5) includes outer groove-wheel
(26), shell (27) and operation handle (28), the shell (27) be top opening funnel-form, and the top of shell (27) and
The bottom plate of shell (27) is affixed, is movably equipped with outer groove-wheel (26) in shell (27), and outer groove-wheel is stretched out in the outer end of outer groove-wheel (26)
(26) and operation handle (28) are connected with.
3. a kind of sweet potato ridge forming machine according to claim 1, it is characterised in that：The rotary cultivator attachment (3) includes rotary tillage main shaft
(23), rotary blade (24), rotary blade fixing seat (25), rotary blade fixing seat (25) are welded on rotary tillage main shaft in double-spiral structure
On, rotary blade (24) is bolted with rotary blade fixing seat (25).
4. a kind of sweet potato ridge forming machine according to claim 1, it is characterised in that：The ridger (14) includes ridging profiling
Plate (18) in mainboard (17), ridging profiling, ridging profiling side plate (16) and ridge copying mechanism (19) are played, the ridging profiling mainboard
It (17) is bar shaped plate, and the bottom surface of ridging profiling mainboard (17) has been distributed with ridge copying mechanism (19), ridging profiling mainboard
(17) side both ends are equipped with ridging profiling side plate (16), and the side of ridging profiling mainboard (17) is located at two blocks of ridging profiling side plates
(16) between；
Described ridge copying mechanism (19) includes the first ridging plate (20), the second ridging plate (22), squeeze board (21), the compacting
The top surface of plate (21) and squeeze board (21) bottom surface are affixed, and the two sides of squeeze board (21) tilt separately down is connected with the first ridging plate
(20) and the second ridging plate (22).
5. a kind of sweet potato ridge forming machine according to claim 1 or 6, which is characterized in that the film covering device (11) includes connection
Bar (29), sleeve (31), connecting stud (32), spring (33), the connecting rod (29) are L shape bar, and the water of connecting rod (29)
Flush end bar is connect with rack (7), and one end of the connecting stud (32) and the longitudinal rod bottom end of connecting rod (29) are affixed, and is connected
It is arranged with spring (33) and sleeve (31) in the middle part of stud (32), sleeve (31) is hollow tapered tubular, and the spring
(33) between connecting rod (29) and sleeve (31), the lesser one end of sleeve (31) diameter outwardly, the connecting stud
(32) the other end is equipped with locking nut (30).
6. a kind of sweet potato ridge forming machine according to claim 1, it is characterised in that：The film pressing device (12) includes strut and sets
Idler wheel in strut bottom end, the top of the strut and rack (7) rotation connect.
7. a kind of sweet potato ridge forming machine according to claim 1, it is characterised in that：The covering device (13) includes inserted link and sets
Earthing scraper plate (8) in inserted link bottom end, the rear end of rack end are equipped with sleeve, there is threaded hole on sleeve, and inserted link is inserted into sleeve
It is interior, and inserted link is bolted with sleeve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946021.0A CN108901225A (en) | 2018-08-20 | 2018-08-20 | A kind of sweet potato ridge forming machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810946021.0A CN108901225A (en) | 2018-08-20 | 2018-08-20 | A kind of sweet potato ridge forming machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108901225A true CN108901225A (en) | 2018-11-30 |
Family
ID=64405247
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810946021.0A Pending CN108901225A (en) | 2018-08-20 | 2018-08-20 | A kind of sweet potato ridge forming machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108901225A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111788885A (en) * | 2020-07-14 | 2020-10-20 | 农业农村部南京农业机械化研究所 | Multi-component cooperative linkage type sweet potato planter |
| CN112166722A (en) * | 2020-09-30 | 2021-01-05 | 青岛农业大学 | Multifunctional sweet potato transplanter |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203775634U (en) * | 2014-03-04 | 2014-08-20 | 青岛农业大学 | Multifunctional operating unit for potatoes |
| KR20150105829A (en) * | 2014-03-10 | 2015-09-18 | 농업회사법인(주)바이오필드 | Direct Seeding for mulching material with environment-friendly method in dry rice field |
| CN204810869U (en) * | 2015-07-21 | 2015-12-02 | 郑州山河机械制造有限公司 | Multi -functional agricultural machine with double row ridging, fertilize, lay drip irrigation zone and tectorial membrane |
| CN205232710U (en) * | 2015-12-25 | 2016-05-18 | 宁夏智源农业装备有限公司 | Vegetables combined operation machine |
| CN205611160U (en) * | 2016-04-29 | 2016-10-05 | 重庆华世丹机械制造有限公司 | Tie ridger with adjustable |
-
2018
- 2018-08-20 CN CN201810946021.0A patent/CN108901225A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203775634U (en) * | 2014-03-04 | 2014-08-20 | 青岛农业大学 | Multifunctional operating unit for potatoes |
| KR20150105829A (en) * | 2014-03-10 | 2015-09-18 | 농업회사법인(주)바이오필드 | Direct Seeding for mulching material with environment-friendly method in dry rice field |
| CN204810869U (en) * | 2015-07-21 | 2015-12-02 | 郑州山河机械制造有限公司 | Multi -functional agricultural machine with double row ridging, fertilize, lay drip irrigation zone and tectorial membrane |
| CN205232710U (en) * | 2015-12-25 | 2016-05-18 | 宁夏智源农业装备有限公司 | Vegetables combined operation machine |
| CN205611160U (en) * | 2016-04-29 | 2016-10-05 | 重庆华世丹机械制造有限公司 | Tie ridger with adjustable |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111788885A (en) * | 2020-07-14 | 2020-10-20 | 农业农村部南京农业机械化研究所 | Multi-component cooperative linkage type sweet potato planter |
| CN111788885B (en) * | 2020-07-14 | 2023-03-07 | 农业农村部南京农业机械化研究所 | Multi-component cooperative linkage type sweet potato planter |
| CN112166722A (en) * | 2020-09-30 | 2021-01-05 | 青岛农业大学 | Multifunctional sweet potato transplanter |
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| PB01 | Publication | ||
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Application publication date: 20181130 |