CN117063676B - Forest seeder - Google Patents
Forest seeder Download PDFInfo
- Publication number
- CN117063676B CN117063676B CN202311276678.8A CN202311276678A CN117063676B CN 117063676 B CN117063676 B CN 117063676B CN 202311276678 A CN202311276678 A CN 202311276678A CN 117063676 B CN117063676 B CN 117063676B
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- CN
- China
- Prior art keywords
- seed
- groove
- roller
- frame
- conveyor belt
- 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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- 238000009331 sowing Methods 0.000 claims description 17
- 230000002265 prevention Effects 0.000 claims description 12
- 238000005192 partition Methods 0.000 claims description 4
- 241000196324 Embryophyta Species 0.000 description 4
- 238000000034 method Methods 0.000 description 2
- 230000001502 supplementing effect Effects 0.000 description 2
- 235000011201 Ginkgo Nutrition 0.000 description 1
- 235000008100 Ginkgo biloba Nutrition 0.000 description 1
- 244000194101 Ginkgo biloba Species 0.000 description 1
- 240000007049 Juglans regia Species 0.000 description 1
- 235000009496 Juglans regia Nutrition 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000010899 nucleation Methods 0.000 description 1
- 238000005096 rolling process Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 230000004083 survival effect Effects 0.000 description 1
- 235000020234 walnut Nutrition 0.000 description 1
Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/08—Broadcast seeders; Seeders depositing seeds in rows
- A01C7/085—Broadcast seeders
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Sowing (AREA)
Abstract
The utility model provides a forest seeder, includes the frame, the frame rotates the connecting roller, the cylinder surface evenly is equipped with three sets of cylinder seed grooves along axial distribution, cylinder seed groove transverse shape is unanimous with the transverse shape of seed, and every cylinder seed groove bottom is equipped with the seed selection groove, and the seed selection groove runs through the cylinder shaft hole in the middle of cylinder seed groove and the cylinder, and unqualified seed flows from the cylinder shaft hole after selecting the seed selection groove, the cylinder lower part is equipped with a set of conveyer belt, and every conveyer belt surface is equipped with a set of conveyer belt seed groove, conveyer belt seed groove transverse shape is unanimous with the seed transverse shape, and every conveyer belt seed groove corresponds a cylinder seed groove, and the seed in the conveyer belt seed groove is prevented falling to put by the shutoff before falling to the ground in the conveyer belt seed groove, and horizontal when this device guarantees that the seed falls to the ground is rejected, and drifts when preventing the seed to fall to the ground, guarantees row spacing and plant spacing.
Description
Technical Field
The invention relates to the field of forest sowing, in particular to a forest sowing device.
Background
In the tree sowing process, large seeds such as walnut seeds, ginkgo seeds and the like are generally sowed in a dibbling mode, and the row spacing of the dibbling seeds is determined according to the tree species and the cultivation period of the seedlings. The seedling emergence position of seeds needs to be paid attention to during sowing, the positions of the seeds are correctly placed, the seeds which do not meet the requirements are removed, a transverse sowing mode is generally adopted, the sowing is generally carried out in a manual mode or a mechanical mode, the manual sowing efficiency is low, the transverse sowing position can not be ensured when the seeds fall to the ground in the traditional mechanical sowing mode, unqualified seeds can not be removed, meanwhile, drifting can occur when the seeds fall to the ground, row spacing and plant spacing can not be ensured, meanwhile, traditional forest planting is carried out, the transverse and longitudinal spacing among the sowing points of the seeds is uneven, entanglement of root systems among seedlings is easy to occur, the integrity of the root systems of the seedlings is influenced during transplanting, the unqualified seeds are easy to occupy positions for the planting positions, the seedling supplementing workload is increased, the distribution of the seeds among various planting positions is uneven during sowing, the seedlings is easy to cause the tree trunk skew, and the device is needed to solve the problems.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides the tree sowing device which ensures that the seeds are transversely placed when falling to the ground, removes unqualified seeds, prevents the seeds from drifting when falling to the ground, ensures row spacing and plant spacing, ensures the integrity of root systems when seedlings are transplanted, avoids occupying positions of the eliminated seeds and avoids the tree trunk of the seedlings from being askew.
The invention aims at realizing the following technical scheme:
the utility model provides a forest seeder, includes the frame, the frame rotates the connection cylinder, the cylinder surface evenly is equipped with three sets of cylinder seed grooves along axial distribution, cylinder seed groove transverse shape is unanimous with the transverse shape of seed, and every cylinder seed groove bottom is equipped with the seed selection groove, and the seed selection groove runs through the cylinder shaft hole in the middle of cylinder seed groove and the cylinder, and unqualified seed flows from the cylinder shaft hole after selecting the seed selection groove, the cylinder lower part is equipped with a set of conveyer belt, and every conveyer belt surface is equipped with a set of conveyer belt seed groove, conveyer belt seed groove transverse shape is unanimous with the seed transverse shape, and every conveyer belt seed groove corresponds a cylinder seed groove, the cylinder seed groove takes out and shifts to corresponding conveyer belt seed groove from the frame, conveyer belt outside fixed connection and the unanimous anti-drop frame of conveyer belt outside, the seed in the conveyer belt seed groove is prevented down the shutoff in the conveyer belt seed groove before going down.
The middle groove is formed in the middle of the frame, two symmetrical supporting frames are arranged on two sides of the middle groove, a horn-shaped hopper with upper openings and lower openings is arranged on the upper portions of the supporting frames, frame bearing seats are arranged on the two supporting frames on the lower portion of the hopper, each frame bearing seat is connected with a bearing seat through a bolt, holes in the middle of the bearing seat and the frame bearing seat are rotationally connected on two sides of a drum shaft in the middle of the drum, a gear is fixedly connected on one side of the drum, and the drum and the lower portion of the hopper form a seal.
Advantageous effects
The invention ensures that when a group of roller seed grooves rotate to the mouth downwards, a group of conveyor belt seed grooves just rotate to the mouth upwards and correspond to the roller seed grooves, seeds taken out of the roller seed grooves from the hopper fall into the corresponding conveyor belt seed grooves from the roller seed grooves, the distance between the two conveyor belts can be ensured by the partition plates, thereby ensuring the row spacing, the transverse shapes of the conveyor belt seed grooves and the roller seed grooves are consistent with the transverse shapes of the seeds, ensuring that the seeds keep the transverse positions after entering the roller seed grooves and the conveyor belt seed grooves, ensuring the seeds keep the transverse positions after falling to the ground, and when the seeds are transferred to the conveyor belt seed grooves from the roller shaft holes and rotate to the lower part along with the conveyor belt, the conveyor belt always plugs the seeds in the conveyor belt seed grooves to prevent the seeds from flowing out of the conveyor belt seed grooves,
the invention falls to the ground and keeps the current transverse position, the ditching angle at the lower part of the falling prevention plate plows the ground to ensure the smoothness of the falling of the seeds, so as to prevent the seeds from being askew, and simultaneously ensure the plant spacing.
Drawings
Fig. 1 is a schematic structural view of a forest tree sowing device according to the present invention.
Fig. 2 is a schematic view of the lower structure of the forest planting device according to the present invention.
Fig. 3 is a schematic view of a frame structure according to the present invention.
Fig. 4 is a schematic view of a falling prevention structure according to the present invention.
Fig. 5 is a schematic view of a drum structure according to the present invention.
Fig. 6 is a schematic sectional view of a drum according to the present invention.
Fig. 7 is a schematic view of a conveyor belt according to the present invention.
Fig. 8 is a schematic view of a cam structure according to the present invention.
Fig. 9 is a schematic structural diagram of a plug according to the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings and examples:
referring to fig. 1 and 2, a tree sowing device comprises a frame 110, the frame 110 is rotationally connected with a roller 130, three groups of roller seed grooves 133 distributed along the axial direction are uniformly arranged on the surface of the roller 130, the transverse shape of each roller seed groove 133 is consistent with that of seeds, a seed selecting groove 134 is arranged at the bottom of each roller seed groove 133, the seed selecting groove 134 penetrates through a roller shaft hole 132 between the roller seed groove 133 and the roller 130, unqualified seeds flow out of the roller shaft hole 132 after being selected by the seed selecting groove 134, a group of conveyor belts 140 are arranged at the lower part of the roller 130, a group of conveyor belt seed grooves 141 are arranged on the surface of each conveyor belt 140, the transverse shape of each conveyor belt seed groove 141 is consistent with that of the seeds, each conveyor belt seed groove 141 corresponds to one roller seed groove 133, the seeds are taken out of the frame 110 and transferred into the corresponding conveyor belt seed grooves 141, the outer sides of the conveyor belts 140 are fixedly connected with the falling prevention frames 120 consistent in the shapes of the conveyor belt seed grooves 141, and the seeds in the conveyor belt grooves 141 are blocked by the falling prevention frames 120 before going down.
Referring to fig. 3, 5 and 6, a middle groove 111 is formed in the middle of the frame 110, two symmetrical supporting frames 112 are arranged on two sides of the middle groove 111, a horn-shaped hopper 115 with upper and lower openings is arranged on the upper portion of each supporting frame 112, frame bearing seats 114 are arranged on the two supporting frames 112 on the lower portion of the hopper 115, each frame bearing seat 114 is connected with a bearing seat 250 through bolts, two sides of a drum shaft 131 in the middle of the drum 130 are rotatably connected with holes in the middle of the bearing seats 250 and the frame bearing seats 114, a first gear 180 is fixedly connected on one side of the drum 130, and the drum 130 and the lower portion of the hopper 115 are closed.
Referring to fig. 7, a first hole 113 is formed in the lower portion of the support frame 112, two symmetrical lower bearing seats 118 are formed in the lower portion of the frame 110, a shaft is rotatably connected to each of the first hole 113 and the lower bearing seats 118, a set of rollers 220 are fixedly connected to each shaft, a partition 230 is arranged between the two rollers 220, the outer sides of the two rollers 220 which correspond up and down are rotatably connected with the conveyor belt 140, the conveyor belt 140 passes through a middle groove 111 in the middle of the frame 110, one side of the shaft in the first hole 113 passes through a second gear 190 and is connected with an output shaft of a motor 210, the motor 210 is fixedly connected with the frame 110, the second gear 190 is fixedly connected with the shaft, and the first gear 180 and the second gear 190 are meshed with each other.
In the initial state, the openings of one group of roller seed grooves 133 are downward, each roller seed groove 133 corresponds to one of the conveyor belt seed grooves 141, the opening of the corresponding conveyor belt seed groove 141 is upward and corresponds to the roller seed groove 133, the motor 210 rotates to drive the shaft connected with the motor to rotate, the shaft drives the gear No. two 190 and the roller 220 to rotate, the gear No. two 190 drives the gear No. one 180 to rotate, the roller 220 drives all the conveyor belts 140 to rotate, because the gear No. one 180 and the gear No. two 190 have a definite rotation speed relationship, when the next group of roller seed grooves 133 rotate to the opening downward, the next conveyor belt seed groove 141 just rotates to the opening upward and corresponds to the roller seed groove 133, the seeds brought out of the hopper 115 from the roller seed grooves 133 fall into the corresponding conveyor belt seed grooves 141, the partition 230 can ensure the distance between the two conveyor belts 140, thereby ensuring the row spacing, the transverse shapes of the conveyor belt seed grooves 141 and the roller seed grooves 133 and the transverse shapes can ensure that the seeds enter the roller seed grooves 133 and the transverse positions after falling to the ground.
Referring to fig. 4, the drop preventing frame 120 passes through the middle groove 111 and is fixedly connected to the frame 110, a set of drop preventing plates 121 corresponding to each conveyor belt 140 are disposed on the drop preventing frame 120, the outer sides of the conveyor belt seed grooves 141 on the front side of the conveyor belt 140 are blocked on the inner sides of the drop preventing plates 121, and a ditching angle 122 is disposed on the lower portion of each drop preventing plate 121. The ditching angle 122 of the lower part of the falling prevention plate 121 is used for ploughing the land to ensure the smoothness of the seeds when falling to the ground, so that the horizontal and longitudinal intervals among the falling places of the seeds are equal, the situation that individual seeds are too close to each other is avoided, seedlings are not extruded mutually, the root systems of the seedlings have independent living spaces and cannot be entangled mutually, the completeness of the root systems of the seedlings can be ensured when the seedlings are transplanted, and the survival rate of the seedlings is improved.
The undersized or crushed seeds enter the roller shaft hole 132 through the seed selection groove 134, no roller seed groove 133 faces downwards in the process, and the seeds are pushed by the cam rod 162, so that the eliminated seeds can be cleaned in time and cannot be mixed into normal seeds again, the normal seeds cannot be influenced by the change of air pressure under the action of gravity, the occupied place of the eliminated seeds on planting positions is avoided, the occurrence of seedling missing is prevented, and the seedling supplementing workload is reduced.
The first gear 180 and the second gear 190 are matched, so that the rotation speed of the roller 130 and the conveyer belt 140 is kept uniform, uneven seed distribution among various planting positions is avoided, and seedling tree trunks are prevented from being inclined due to seedling missing or seedling accumulation.
When seeds are transferred from the roller shaft holes 132 to the conveyor belt seed grooves 141 and rotate to the lower part along with the conveyor belt 140, the conveyor belt 140 always plugs the seeds in the conveyor belt seed grooves 141, so that the seeds are prevented from flowing out of the conveyor belt seed grooves 141, when the conveyor belt seed grooves 141 rotate to the downward position of the lower part, the seeds fall on the ground and keep the current transverse position, and the ditching angle 122 at the lower part of the falling prevention plate 121 plows the ground to the ditches to ensure the smoothness of the falling seeds, prevent the seeds from being askew and ensure the planting distance.
Referring to fig. 8 and 9, the other side of the drum shaft 131 in the middle of the drum 130 is fixedly connected with the cam 150, the end surface of the cam 150 is provided with a set of spiral surfaces 151, each spiral surface 151 corresponds to one drum seed groove 133, the tail end of each spiral surface 151 is provided with a straight surface 152 perpendicular to the end surface of the cam 150, the upper part of the upper bearing seat 116 on the upper part of the lower bearing seat 118 is provided with a square hole 117, the square hole 117 is slidably connected with a square rod 161 outside the plug 160, the outside of the square rod 161 is sleeved with a spring 170, two sides of the spring 170 are propped against the inner side of the square hole 117 and the outside of the plug 160, the square rod 161 in the middle of the plug 160 corresponds to a drum shaft hole 132 in the middle of the drum 130, the contact 163 is slidably connected with the corresponding spiral surface 151, the drum shaft hole 132 is of a horn mouth structure, the drum shaft hole 132 is big towards the side of the cam rod 162, and the drum shaft hole 132 is a blind hole with a small mouth.
Referring to fig. 1 and 2, the support leg 119 of the lower portion of the frame 110 is provided with wheels 240.
When the drum 130 rotates, seeds entering the drum seed groove 133 enter the drum shaft hole 132 from the drum seed groove 133 through the seed selection groove 134 if the size is too small or the seeds are crushed, because one end of the drum shaft hole 132 is large and the other end is small, seeds entering the drum shaft hole 132 roll out from the large opening of the drum shaft hole 132, the cam 150 is driven to rotate together when the drum 130 rotates, the spiral surface 151 pushes the plug 160 outwards through the contact 163 when the cam 150 rotates, the spring 170 is compressed, when the drum seed groove 133 rotates downwards, the contact 163 slides to the tail end of the corresponding spiral surface 151, under the action of the spring 170, the contact 163 quickly returns to the bottom of the straight surface 152 from the corresponding straight surface 152, the cam rod 162 in the middle of the plug 160 is quickly inserted into the drum shaft hole 132, air in the drum shaft hole 132 is extruded, the air pressure in the drum shaft hole 132 rises, and if the seeds in the drum seed groove 133 or the seed selection groove 134 are blocked, the seeds are blown out by air flow under the pressure of the air, and the phenomenon that the seeds blocked in the drum seed groove 133 cannot always go out can be avoided, so that the miss seeding phenomenon occurs.
When the device is used, seeds to be sown are put into the hopper 115, the device is provided with a tractor which is pulled to move forward in a sowing area, a motor 210 is started, a shaft drives a gear No. two 190 and a roller 220 to rotate, the gear No. two 190 drives a gear No. one 180 to rotate, the roller 220 drives all conveyor belts 140 to rotate, when a group of roller seed grooves 133 rotate to the downward direction, a group of conveyor belt seed grooves 141 just rotate to the upward direction and correspond to the roller seed grooves 133, seeds brought out of the hopper 115 by the roller seed grooves 133 fall into the corresponding conveyor belt seed grooves 141 from the roller seed grooves 133, a distance between the two conveyor belts 140 can be ensured by a baffle 230, thereby row spacing is ensured, the transverse shapes of the conveyor belt seed grooves 141 and the roller seed grooves 133 are consistent, the transverse positions of the seeds can be ensured to be kept after entering the roller seed grooves 133 and the conveyor belt seed grooves 141, ensuring that the seeds are kept in a transverse position after falling to the ground, when the seeds are transferred from the roller shaft hole 132 to the conveyor belt seed groove 141 and rotate to the lower part along with the conveyor belt 140, the conveyor belt 140 always plugs the seeds in the conveyor belt seed groove 141 to prevent the seeds from flowing out of the conveyor belt seed groove 141, when the conveyor belt seed groove 141 rotates to the downward position at the lower part, the seeds fall to the ground and keep the current transverse position, the ditching angle 122 at the lower part of the falling prevention plate 121 plows the ground to ensure the smoothness of the seeds when falling to the ground, preventing the seeds from being askew, ensuring the plant spacing at the same time, ensuring that the seeds entering the roller seed groove 133 enter the roller shaft hole 132 from the roller seed groove 133 if the size is too small or broken, rolling out of the roller shaft hole 132 from a large opening of the roller shaft hole 132 due to the size of the roller shaft hole 132, when the roller 130 rotates to drive the cam 150 to rotate together, the spiral surface 151 pushes the plug 160 outwards through the contact 163 when the cam 150 rotates, the spring 170 is compressed, when the roller seed groove 133 rotates downwards, under the action of the spring 170, the cam rod 162 in the middle of the plug 160 is quickly inserted into the roller shaft hole 132, air in the roller shaft hole 132 is extruded, the air pressure in the roller shaft hole 132 is increased, if seeds are blocked in the roller seed groove 133 or the seed selecting groove 134, the seeds can be blown out by air flow under the pressure of the air, and the phenomenon that the seeds blocked in the roller seed groove 133 can not be always discharged can be avoided, thereby the missing sowing phenomenon is avoided.
Claims (2)
1. The tree sowing device is characterized by comprising a frame (110), wherein the frame (110) is rotationally connected with a roller (130), three groups of roller seed grooves (133) which are distributed along the axial direction are uniformly formed on the surface of the roller (130), the transverse shape of each roller seed groove (133) is consistent with that of seeds, a seed selecting groove (134) is formed at the bottom of each roller seed groove (133), the seed selecting groove (134) penetrates through roller shaft holes (132) in the middle of the roller seed grooves (133) and the roller (130), unqualified seeds flow out of the roller shaft holes (132) after being selected by the seed selecting grooves (134), a group of conveyor belts (140) are arranged at the lower part of the roller (130), a group of conveyor belt seed grooves (141) are formed on the surface of each conveyor belt (140), the transverse shape of each conveyor belt seed groove (141) is consistent with that of seeds is consistent, each conveyor belt seed groove (141) is corresponding to one roller seed groove (133), the seeds are carried out of the frame (110) and transferred into the corresponding conveyor belt seed grooves (141), and the outer sides of the conveyor belt (140) are prevented from falling down in the conveyor belt grooves (120) in a fixed mode, and the outer sides of the conveyor belt grooves (120 are prevented from falling down in the same place; a middle groove (111) is formed in the middle of the frame (110), two symmetrical supporting frames (112) are arranged on two sides of the middle groove (111), a horn-shaped hopper (115) with upper and lower openings is arranged on the upper portion of each supporting frame (112), a frame bearing seat (114) is arranged on each supporting frame (112) on the lower portion of each hopper (115), each frame bearing seat (114) is connected with a bearing seat (250) through a bolt, holes in the middle of a bearing seat (250) and the frame bearing seat (114) are rotationally connected on two sides of a drum shaft (131) in the middle of the drum (130), and a first gear (180) is fixedly connected on one side of the drum (130); the lower part of the support frame (112) is provided with a first hole (113), the lower part of the frame (110) is provided with two symmetrical lower bearing seats (118), each of the first hole (113) and the lower bearing seats (118) is rotationally connected with a shaft, each shaft is fixedly connected with a group of rollers (220), a partition plate (230) is arranged between the two rollers (220), the outer sides of the two rollers (220) which correspond up and down are rotationally connected with a conveyor belt (140), the conveyor belt (140) passes through a middle groove (111) in the middle of the frame (110), one side of the shaft in the first hole (113) passes through a second gear (190) and is connected with an output shaft of a motor (210), the motor (210) is fixedly connected with the frame (110), the second gear (190) is fixedly connected with the shaft, and the first gear (180) and the second gear (190) are meshed with each other; the cam (150) is fixedly connected to the other side of a roller shaft (131) in the middle of the roller (130), a group of spiral surfaces (151) are arranged on the end surface of the cam (150), each spiral surface (151) corresponds to one roller seed groove (133), a straight surface (152) perpendicular to the end surface of the cam (150) is arranged at the tail end of each spiral surface (151), a square hole (117) is formed in the upper portion of an upper bearing seat (116) on the upper portion of a lower bearing seat (118), the square hole (117) is in sliding connection with a square rod (161) on the outer side of a plug (160), a spring (170) is sleeved on the outer side of the square rod (161), two sides of the spring (170) abut against the inner side of the square hole (117) and the outer side of the plug (160), the square rod (161) in the middle of the plug (160) corresponds to a roller shaft hole (132) in the middle of the roller (130), a contact (163) is in sliding connection with the corresponding spiral surface (151), the shaft hole (132) is of a bell-mouth structure, the roller shaft hole (132) is large towards the side of the cam rod (162), and the roller shaft hole (132) is a blind hole on one side of a small opening; the support leg (119) at the lower part of the frame (110) is provided with wheels (240).
2. The tree planting device according to claim 1, wherein the falling prevention frame (120) passes through the middle groove (111) and is fixedly connected to the frame (110), a group of falling prevention plates (121) corresponding to each conveyor belt (140) are arranged on the falling prevention frame (120), the outer sides of the conveyor belt seed grooves (141) on the front side of the conveyor belts (140) are blocked by the inner sides of the falling prevention plates (121), and a ditching angle (122) is arranged at the lower part of each falling prevention plate (121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311276678.8A CN117063676B (en) | 2023-10-05 | 2023-10-05 | Forest seeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311276678.8A CN117063676B (en) | 2023-10-05 | 2023-10-05 | Forest seeder |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117063676A CN117063676A (en) | 2023-11-17 |
| CN117063676B true CN117063676B (en) | 2024-03-01 |
Family
ID=88710076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311276678.8A Active CN117063676B (en) | 2023-10-05 | 2023-10-05 | Forest seeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117063676B (en) |
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| CN112275372A (en) * | 2020-10-10 | 2021-01-29 | 河南农业大学 | Self-propelled biological carbon-based fertilizer quantitative hole application device |
| CN112690070A (en) * | 2020-12-21 | 2021-04-23 | 周*** | Roller sowing seeder and seeder comprising same |
| CN215453923U (en) * | 2021-05-28 | 2022-01-11 | 辽宁装备制造职业技术学院 | Electric control air-blowing type precision seed sowing device |
| DE202021105287U1 (en) * | 2021-09-30 | 2023-01-10 | Robert Schmidt | Metering device for seeds |
| CN115669294A (en) * | 2022-11-08 | 2023-02-03 | 黑龙江省农业机械工程科学研究院牡丹江分院 | Rice direct seeding machine |
| CN218587586U (en) * | 2022-11-14 | 2023-03-10 | 青岛农业大学 | Tumorous stem mustard seeder |
| CN219459735U (en) * | 2023-03-28 | 2023-08-04 | 台州市一鸣机械股份有限公司 | Drill seeding machine |
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| JPH11187708A (en) * | 1997-12-26 | 1999-07-13 | Yanmar Agricult Equip Co Ltd | Belt type dibbler |
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