CN105850255B - Multifunctional seed drill - Google Patents
Multifunctional seed drill Download PDFInfo
- Publication number
- CN105850255B CN105850255B CN201610238003.8A CN201610238003A CN105850255B CN 105850255 B CN105850255 B CN 105850255B CN 201610238003 A CN201610238003 A CN 201610238003A CN 105850255 B CN105850255 B CN 105850255B
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- China
- Prior art keywords
- belt pulley
- ditching
- cutter shaft
- separation plate
- shaft
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- 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
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- 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
- Y02P60/14—Measures for saving energy, e.g. in green houses
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- 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 multifunctional seed drills, fertilizer apparatus, ditching device, seeding apparatus, gearbox and seeder press wheel seeder including being connected in fixed base further include the ditching device and earth separation plate, connector for being connected to one end, ditching device is connected to by two axis wheels, gap bridge belt pulley and cutter shaft belt pulley on gearbox, is sequentially connected respectively by belt between two axis wheels and gap bridge belt pulley, cutter shaft belt pulley；Gap bridge belt pulley is fixed on the top of fixed base by bridge shaft and fixing bracket；Earth separation plate is connected on bridge shaft, and earth separation plate is sleeved on the outside of ditching device, and earth separation plate is the sector structure being fixed in fixed base.The ditching device complete machine of the present invention is directly installed on seeder, need to only be connected while oil circuit achieves that sowing and be ditched, and then is reached rotary tillage, applied fertilizer, bury stubble, sowing, town soil, the operation effectiveness disposably completed of ditching.Ditching device structure tightly plays, is easy to operate, dependable performance.
Description
Technical field
The present invention relates to multifunctional seed drill technical fields, more particularly to multifunctional seed drill.
Background technology
Existing multifunctional seed drill, only has the function of apply fertilizer, loosen the soil, sowing and firming, after sowing completion each time,
Need it is secondary ditch lowerly, could complete sowing program.But existing multifunctional seed drill has no function of ditching, needs to drag
Machine drawing individually hooks ditching machine, it is secondary go to the field, operation, it is extremely inconvenient in this way, meet the weather rainy time, be even more fiber crops lowerly
It is tired.And to sow field, seed growth in it is unfavorable, if misoperation, it is also possible to cause to having sowed
The damage of seed causes the waste of sowing grain.Operating personnel need operation tractor cultivation again and again, for big face
Product cultivation more wastes time, and labor intensity is also larger.
Invention content
In order to overcome the above-mentioned deficiencies of the prior art, the present invention provides multifunctional seed drills, more its object is to improve
The cultivation efficiency of sowing machine realizes that it applies fertilizer, loosens the soil, sowing, firming, trench digging are disposably completed, and then reach saving and broadcast
Kind time, the purpose for reducing sowing cost and efficiency and disposably sowing, and mitigate sowing burden.
The technical solution adopted in the present invention is：Multifunctional seed drill, including be connected in fixed base fertilizer apparatus,
Ditching device, seeding apparatus, gearbox and seeder press wheel seeder further include being connected to the ditching device of one end and dividing
Native plate, connector, ditching device are connected to by two axis wheels, gap bridge belt pulley and cutter shaft belt pulley on gearbox, two axis wheels and mistake
It is sequentially connected respectively by belt between bridge belt pulley, cutter shaft belt pulley；Gap bridge belt pulley is solid by bridge shaft and fixing bracket
It is scheduled on the top of fixed base；Earth separation plate is connected on bridge shaft, and earth separation plate is sleeved on the outside of ditching device, and earth separation plate
To be fixed on the sector structure in fixed base.The multifunctional seed drill of the present invention, is connected to the change of the fixed base of seeder
On fast case, two shaft members are connected on the outside of gearbox, gearbox, which is also associated with, is separately positioned on rotation axis and ditching device side
Gap bridge belt pulley, cutter shaft belt pulley, gearbox drives the rotation of two shaft members, and then drives gap bridge belt pulley and cutter shaft by belt
Belt pulley, and then drive earth separation plate rotation.After ditching device overturns the soil in field, soil that ditching device will open
It blocks on the outside of the mud ditch outputed, realize multifunctional seed drill sowing while ditching, and then reach fertilising, loosen the soil, sow, pressing
The effect that soil, trench digging are disposably completed.
Further, cutter shaft belt pulley by ditching knife axis connection on ditching device；It is also set between bridge shaft and engine base
It includes cutter shaft interconnecting piece to have lifting gear, lifting gear；Cutter shaft interconnecting piece one end is sleeved on bridge shaft, and the other end is sleeved on cutter shaft skin
On belt wheel, to realize ditching device when not in use, it can be risen, and directly hang on seeder and use, and nothing
It needs individually to be unloaded, reduces its difficulty used, the person of being conveniently operated uses.
Further, in order to which ditching device and earth separation plate have preferable lifting effect, lifting gear includes oil cylinder and work
Make arm, working arm is fixed in fixed base, and the output end of oil cylinder passes through with working arm by rotating axis connection, working arm
Rotation axis is hinged on the output end rotation of oil cylinder, and working arm is fixedly connected with cutter shaft interconnecting piece outside bridge shaft whole as one
Body.
Further, gap bridge set is also cased with outside bridge shaft, working arm and cutter shaft interconnecting piece are connected to gap bridge and put on, can
With rationally and effectively utilize seeder on space so that the equipment it is more convenient to use.
Further, ditching device further includes that cutterhead, small sickle-shaped ditching knife and scythe shape edge-trimming cutter, cutterhead are sleeved on out
Ditch cutter shaft center position is fixed with several small sickle-shaped ditching knifes and several scythe shape edge-trimming cutters, trench digging effect on cutterhead
Fruit is preferable.
Further, the quantity of small sickle-shaped ditching knife is 6-12, and scythe shape edge-trimming cutter is 3 to 6；And small sickle
Knife-edge ditching knife is connected to the marginal position of cutterhead, and scythe shape edge-trimming cutter connects since the center of cutter shaft belt pulley
It connects.
Further, it is additionally provided with arrangement of clutch between two axis wheels and gearbox, which coordinates lifting gear so that
Ditching device is in off working state, has higher unfailing performance.
Further, earth separation plate is connected in series by several " eight " font structures；And it is additionally provided between " eight " font structure
Notch；The free end of earth separation plate is L-type buried channel device, and it is preferable to bury native effect.
Compared with prior art, the beneficial effects of the invention are as follows：The multifunctional seed drill of the present invention, is connected to seeder
On the gearbox of fixed base, two shaft members are connected on the outside of gearbox, gearbox, which is also associated with, to be separately positioned on rotation axis and open
Gap bridge belt pulley, the cutter shaft belt pulley of ditch device side, gearbox drives the rotation of two shaft members, and then is driven and passed a bridge by belt
Belt pulley and cutter shaft belt pulley, and then drive earth separation plate rotation.After ditching device overturns the soil in field, ditching device
The soil opened is blocked on the outside of the mud ditch outputed, realize multifunctional seed drill sowing while being ditched, and then reaches fertilising, pine
The effect that soil, sowing, firming, trench digging are disposably completed.Ditching device structure tightly plays, is easy to operate, dependable performance.
Description of the drawings
Fig. 1 is the left side view of one embodiment of the ditching device of multifunctional seed drill；
Fig. 2 be Fig. 1 embodiment A to structural schematic diagram；
Fig. 3 is the three dimensional structure diagram in a direction of the embodiment of Fig. 1；
Fig. 4 is the three dimensional structure diagram in another direction of the embodiment of Fig. 1；
Fig. 5 is the vertical view of the embodiment of Fig. 1 in Fig. 4；
Wherein：1- fixed bases, 2- lifting gears, 21- oil cylinders, 22- working arms, 23- rotation axis, 24- cutter shaft interconnecting pieces,
25-, which passes a bridge, to be covered；3- ditching devices, 31- cutterheads, the small sickle-shaped ditching knifes of 32-, 33- scythe shape edge-trimming cutters；4- earth separation plates, 41-
Notch, 42-L type buried channel devices, 43- enhance rib；5- connectors, 6- U-bolts；7- gearboxes, bis- axis wheels of 8-, 9- gap bridge belts
Wheel, 10- cutter shaft belt pulleys, 11- belts, the support of 12- " people " font, 13- seeder press wheels, 14- seeder rotary knife axises,
15-B types V-belt, 16- arrangement of clutch, 17- trench digging cutter shafts, 18- bridge shafts, 19- fixing brackets.
Specific implementation mode
In order to deepen the understanding of the present invention, present invention will be further explained below with reference to the attached drawings and examples, the implementation
Example is only used for explaining the present invention, does not constitute and limits to protection scope of the present invention.
Embodiment 1
As shown in Figure 1, multifunctional seed drill ditching device, will apply the fixing bracket of cultivated mop seeder ditching device
Lower part U bolt 6 is fixed on the crossbeam for applying cultivated mop seeder, fixing bracket top pulling plate and seeder transmission-case cover
It is bolted connection, to which ditching device integral installation is on seeder, constitutes multifunctional seed drill, the seeder after installation
The position of rotary knife axis 14 is as shown in Figure 1 so that multifunctional seed drill realizes rotary tillage while trench digging, applies fertilizer, buries stubble, broadcasting
The operation effectiveness that kind, town soil, trench digging are disposably completed.It is connected on seeder, mainly by two shaft members, fixing bracket,
The parts such as oil cylinder, oil cylinder stabilizer blade, bridge shaft, trench digging holder, trench digging cutter shaft, cutterhead, earth separation plate, buried channel device are composed.It is logical
The belt pulley rotation crossed in two shaft members 8 drives gap bridge shaft pulley 9, then drives trench digging cutter shaft belt by gap bridge shaft pulley 9
Wheel 10, makes the cutterhead 31 on cutter shaft rotate, to make the small sickle-shaped ditching knife 32 installed on cutterhead and scythe shape edge-trimming cutter
33 rotations, carry out trench digging and trimming operation.
And ditching device is equipped with belt stretcher and belt clamshell, securely and reliably.Clutch is provided in two shaft members
Device needs to close arrangement of clutch when trench digging, and when that need not ditch, disengagable arrangement of clutch makes two shaft pulleys not rotate,
The oil cylinder that reruns promotes ditching machine etc., to which ditching device stops operation, while ensure seeder carry out rotary tillage, apply fertilizer, bury stubble,
Other operations such as sowing, town soil are normally carried out.Arrangement of clutch structure tightly plays, is easy to operate.Between fixing bracket and oil cylinder stabilizer blade
It is configured with lifting gearbox of the oil cylinder as ditching device, the connector of oil cylinder and seeder oil circuit need to only be connected, oil cylinder bottom
It is supported on support bracket fastened oil cylinder axis pin, stretching or contracting by oil cylinder plug cock bar, makes oil cylinder stabilizer blade and trench digging holder around gap bridge
Shaft rotation is dynamic and slowly rises to come or decline with trench digging cutter shaft, the depth for adjusting trench digging is needed according to operation, it is time saving and energy saving to accomplish.
Ditching machine frame is put down when need to ditch, Ditching machine frame is promoted when not needing.
In the present embodiment, ditch stent ends bottom plate on bearing block is installed, be used to support trench digging and cutter shaft and be mounted on
The parts part such as cutterhead on cutter shaft.Two planes of cutterhead or so are respectively equipped with equally distributed 6 ditching knife and 3 edge-trimming cutter,
It ditches with the ditching knife on movable knife disc when cutter shaft is rotated, while trimming ditch cuts flat with the two sides of ditch, ensures trench digging
Effect and ditch two sides it is smooth.
In addition, shown in Figure 2, ditching device is provided with the earth separation plate 4 for subtracting dish wing-like, and earth separation plate 4 is located at and divides earth ridge
The both sides of bone, earth separation plate keel are bolted connection integrally with trench digging holder, can together be moved up and down with trench digging holder
It is lifted.When operation, the soil that ditching knife and edge-trimming cutter are sputtered by trench digging can be overturn and be blocked in time by earth separation plate
On the ground outside the both sides Ni Gou outputed, avoids the mud ditch outputed from being blocked, realize its purpose efficiently ditched.
Finally, ditching device is provided with L-type buried channel device, and buried channel device is welded by several blocks of steel plates, proof strength and resistance to
With.Buried channel device bolt is connect with earth separation plate keel, easy to loading and unloading.The bolt hole of buried channel device is long slot bore, for adjusting buried channel
Apart from the position of bottom of trench when device is installed.Buried channel device curved surfaces are smooth, can will fall into and opened because soil splashes during trench digging
A small amount of soil of the ditch bottom surface gone out cleans up, and to keep the groove face outputed smooth, bottom of trench is clean.
Embodiment 2
As shown in Figure 3 and Figure 4, multifunctional seed drill, including the fertilizer apparatus, the ditching device that are connected in fixed base 1
3, seeding apparatus, gearbox 7 and 13 seeder of seeder press wheel further include the ditching device 3 and earth separation plate for being connected to one end
4, connector 5, ditching device 3 are connected to by two axis wheels 8, gap bridge belt pulley 9 and cutter shaft belt pulley 10 on gearbox 7, two axis wheels 8
It is sequentially connected respectively by belt 11 between gap bridge belt pulley 9, cutter shaft belt pulley 10；Gap bridge belt pulley 9 passes through bridge shaft 18
The top of fixed base 1 is fixed on fixing bracket 19；Earth separation plate 4 is connected on bridge shaft 18, and earth separation plate 4 is sleeved on trench digging
3 outside of device, and earth separation plate 4 is the sector structure being fixed in fixed base 1.The multifunctional seed drill of the present invention, connection
On the gearbox of the fixed base of seeder, two shaft members are connected on the outside of gearbox, gearbox, which is also associated with, to be separately positioned on
The gap bridge belt pulley of rotation axis and ditching device side, cutter shaft belt pulley, gearbox drives the rotation of two shaft members, and then passes through skin
Band drives gap bridge belt pulley and cutter shaft belt pulley, and then drives earth separation plate rotation.When ditching device overturns the soil in field
Afterwards, ditching device blocks the soil opened on the outside of the mud ditch outputed, and realizes multifunctional seed drill sowing while ditching, in turn
Achieve the effect that apply fertilizer, loosens the soil, sows, firming, ditching and disposably complete.In addition, in order to enable the ditching device and burying native dress
Setting has the effect of change, and the belt 11 being set between two axis wheels 8, gap bridge belt pulley 9 is replaced with Type B V-belt 15.
As shown in figure 3, cutter shaft belt pulley 10 is connected to by cutter shaft 17 of ditching on ditching device 3；Bridge shaft 18 and engine base 1
Between be additionally provided with lifting gear 2, lifting gear 2 includes cutter shaft interconnecting piece 24；24 one end of cutter shaft interconnecting piece is sleeved on bridge shaft 18,
The other end is sleeved on cutter shaft belt pulley 10, to realize ditching device when not in use, can be risen, and directly hang over
It is used on seeder, without individually being unloaded, reduces its difficulty used, the person of being conveniently operated uses.
As shown in Figure 3 and Figure 4, include oil in order to which ditching device and earth separation plate have preferable lifting effect, lifting gear 2
Cylinder 21 and working arm 22, working arm 22 are fixed in fixed base 1, and the output end of oil cylinder 21 passes through rotation with working arm 22
Axis 23 connects, and the output end that working arm 22 is hinged on oil cylinder by rotation axis 23 rotates, and working arm 22 exists with cutter shaft interconnecting piece 24
It is fixedly connected as an entirety outside bridge shaft 18.Gap bridge set 25, working arm 22 and cutter shaft interconnecting piece are also cased with outside bridge shaft 18
24 are connected on gap bridge set 25, can rationally and effectively utilize the space on seeder so that the use of the equipment is more
It is convenient.
Referring to Fig. 3, ditching device 3 further includes cutterhead 31, small sickle-shaped ditching knife 32 and scythe shape edge-trimming cutter 33, cutterhead
31 are sleeved on trench digging 17 center position of cutter shaft, and several small sickle-shaped ditching knifes 32 and several scythe shapes are fixed on cutterhead 31
Edge-trimming cutter 33, trench digging effect are preferable.The quantity of small sickle-shaped ditching knife 32 is 6-12, and scythe shape edge-trimming cutter 33 is 3 to 6
It is a；And small sickle-shaped ditching knife 32 is connected to the marginal position of cutterhead 31, and scythe shape edge-trimming cutter 33 is from cutter shaft belt pulley
10 center starts to connect.It is additionally provided with arrangement of clutch 16 between two axis wheels 8 and gearbox 7, the arrangement of clutch 16 cooperation rises
Falling unit so that ditching device is in off working state, has higher unfailing performance.
Shown in Fig. 3 and Fig. 5, earth separation plate 4 is connected in series by several " eight " font structures；And between " eight " font structure also
Equipped with notch 41；The free end of earth separation plate 4 is L-type buried channel device 42, and it is preferable to bury native effect.
The multifunctional seed drill ditching device of the present invention, is connected to one end of multifunctional seed drill, including be used for and sow
The connected connector of machine, fixed base, and the oil cylinder 2 that is rotatably connected in fixed base, the free end of oil cylinder 2 is set mutually
The ditching device 3 connected and earth separation plate 4 are covered, after ditching device 3 overturns the soil in field, soil that earth separation plate 4 will open
It blocks on the outside of the mud ditch outputed, realize multifunctional seed drill sowing while ditching, and then reach fertilising, loosen the soil, sow, pressing
The effect that soil, trench digging are disposably completed.
What the embodiment of the present invention was announced is preferred embodiment, and however, it is not limited to this, the ordinary skill people of this field
Member understands the spirit of the present invention easily according to above-described embodiment, and makes different amplification and variation, but as long as not departing from this
The spirit of invention, all within the scope of the present invention.
Claims (4)
1. multifunctional seed drill, including it is connected to fixed base（1）On fertilizer apparatus, ditching device（3）, seeding apparatus, change
Fast case（7）With seeder press wheel（13）It is characterized in that, the seeder further includes the ditching device for being connected to one end（3）
And earth separation plate（4）, connector（5）, the ditching device（3）Pass through two axis wheels（8）, gap bridge belt pulley（9）With cutter shaft belt pulley
（10）It is connected to gearbox（7）On, the two axis wheel（8）With gap bridge belt pulley（9）, cutter shaft belt pulley（10）Between pass through respectively
Belt（11）It is sequentially connected；
The gap bridge belt pulley（9）Pass through bridge shaft（18）And fixing bracket（19）It is fixed on fixed base（1）Top；
The earth separation plate（4）It is connected to bridge shaft（18）On, and the earth separation plate（4）It is sleeved on ditching device（3）Outside, and
The earth separation plate（4）To be fixed on fixed base（1）On sector structure；
The cutter shaft belt pulley（10）Pass through cutter shaft of ditching（17）It is connected to ditching device（3）On；
The bridge shaft（18）And engine base（1）Between be additionally provided with lifting gear（2）, the lifting gear（2）It is connected including cutter shaft
Portion（24）；
The cutter shaft interconnecting piece（24）One end is sleeved on bridge shaft（18）On, the other end is sleeved on cutter shaft belt pulley（10）On；The liter
Falling unit（2）Including oil cylinder（21）And working arm（22）, the working arm（22）It is fixed on fixed base（1）On, and it is described
Oil cylinder（21）Output end and working arm（22）Pass through rotation axis（23）Connection, the working arm（22）Pass through rotation axis（23）Hinge
It is connected on the output end rotation of oil cylinder, the working arm（22）With cutter shaft interconnecting piece（24）In bridge shaft（18）Outer be fixedly connected becomes
One entirety；The two axis wheel（8）With gearbox（7）Between be additionally provided with arrangement of clutch（16）；The earth separation plate（4）By several
" eight " font structure is connected in series；And it is additionally provided with notch between " eight " font structure（41）；The earth separation plate（4）From
By holding as L-type buried channel device（42）.
2. multifunctional seed drill according to claim 1, which is characterized in that the bridge shaft（18）It is outer to be also cased with gap bridge set
（25）, the working arm（22）With cutter shaft interconnecting piece（24）It is connected to gap bridge set（25）On.
3. multifunctional seed drill according to claim 1, which is characterized in that the ditching device（3）It further include cutterhead
（31）, small sickle-shaped ditching knife（32）With scythe shape edge-trimming cutter（33）, the cutterhead（31）It is sleeved on trench digging cutter shaft（17）Center
At position, the cutterhead（31）On be fixed with several small sickle-shaped ditching knifes（32）And several scythe shape edge-trimming cutters（33）.
4. multifunctional seed drill according to claim 3, which is characterized in that the small sickle-shaped ditching knife（32）Quantity
It is 6-12, the scythe shape edge-trimming cutter（33）It is 3 to 6；And small sickle-shaped ditching knife（32）It is connected to cutterhead（31）
Marginal position, and scythe shape edge-trimming cutter（33）From cutter shaft belt pulley（10）Center start to connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238003.8A CN105850255B (en) | 2016-04-18 | 2016-04-18 | Multifunctional seed drill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610238003.8A CN105850255B (en) | 2016-04-18 | 2016-04-18 | Multifunctional seed drill |
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| Publication Number | Publication Date |
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| CN105850255A CN105850255A (en) | 2016-08-17 |
| CN105850255B true CN105850255B (en) | 2018-07-20 |
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| CN201610238003.8A Active CN105850255B (en) | 2016-04-18 | 2016-04-18 | Multifunctional seed drill |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106385878A (en) * | 2016-08-31 | 2017-02-15 | 广德县金土地农产品专业合作社 | Ditching device for multifunctional seeding machine |
| CN106211828A (en) * | 2016-08-31 | 2016-12-14 | 广德县金土地农产品专业合作社 | Multifunctional seed drill |
| CN107114022A (en) * | 2017-04-01 | 2017-09-01 | 丹阳良友机械有限公司 | A kind of follow-on multifunctional seed drill |
| CN108934229B (en) * | 2017-05-19 | 2024-02-09 | 河南如意林园林机械有限公司 | Belt tensioning and taking type ditching machine |
| CN111656894A (en) * | 2020-07-09 | 2020-09-15 | 南京农业大学 | Rear rotary tillage seeding and fertilizing ditcher |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2033571U (en) * | 1988-07-30 | 1989-03-08 | 川沙县张桥公社农机服务公司 | Combination ploughing and seeding drill with guttering device |
| US7946232B2 (en) * | 2009-07-13 | 2011-05-24 | Agco Corporation | Planter with depth adjustment mechanism |
| CN201426248Y (en) * | 2009-07-14 | 2010-03-24 | 汤楚宙 | Mini-type listerplanter |
| CN104160809A (en) * | 2013-11-05 | 2014-11-26 | 南通棉花机械有限公司 | Efficient hydraulically-driven farmland ditching combined device |
| CN205755347U (en) * | 2016-04-18 | 2016-12-07 | 丹阳良友机械有限公司 | Multifunctional seed drill |
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2016
- 2016-04-18 CN CN201610238003.8A patent/CN105850255B/en active Active
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