CN104982128A - Chain transmission type stock planting mechanism - Google Patents
Chain transmission type stock planting mechanism Download PDFInfo
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- CN104982128A CN104982128A CN201510331223.0A CN201510331223A CN104982128A CN 104982128 A CN104982128 A CN 104982128A CN 201510331223 A CN201510331223 A CN 201510331223A CN 104982128 A CN104982128 A CN 104982128A
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- spiral arm
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Abstract
The invention provides a chain transmission type stock planting mechanism. The chain transmission type stock planting mechanism comprises a telescopic rotating arm support, a chain transmission device and a stock planting device. The telescopic rotating arm support can adjust the length by itself, when different planting distances are changed in stock planting, it is ensured that the planting movable track of the stock planting device is similar to a swing line, the upright degree of planting is improved, and the walking route of a duck nozzle in soil is shortened; chain transmission is adopted in the stock planting mechanism so that mass is low compared with gear transmission, and cost is low. According to a chain tensioning device which is designed with a specific length, power transmission of a rotating arm in different lengths can be achieved under the premise that different types of transmission chains do not need to be replaced.
Description
Technical field
The invention belongs to agricultural mechanical field, specifically refer to a kind of by the chaindriven planting mechanism with Telescopic.
Background technology
Along with the raising day by day that crop transplanting machine toolization requires, the extensive use of various transplanting machine, existing transplanter is mainly divided into suppending cup type, seedling guide tube type, jaw clamping type, flexible disk formula etc.
As shown in Figure 1, if Vt is machine forwarding speed, R is the length of spiral arm end to cantilever-rotating center, and ω is the peripheral speed that spiral arm rotates, and λ is the design parameter introduced, and numerical value is λ=(R* ω)/Vt.When planting mechanism move track be cycloid (λ=1) or trochoidal curve (λ > 1) time, can realize by controlling the position of seedling the seedling that vertically falls in theory, namely seedling leaves planting apparatus moment, and its horizontal velocity is zero.Being cycloid for the planting apparatus of planting of the punching track that usually requires to plant, by controlling the opening degree of planting apparatus, in the process of planting, avoiding the phenomenon be with seedling, hung seedling to produce; Simultaneously relatively trochoidal curve is planted track, and cycloidal path, when planting same strain distance, can reduce planting apparatus walking path in soil, reduces the active force between planting apparatus and soil.But when switching the operating mode of different spacing in the rows, after the corresponding change of Vt and ω, if do not change R parameter, being difficult to ensure that λ is approximately 1, being also just difficult to ensure good Planting effect.
Domestic publication number be CN102498807A patent discloses a kind of planetary-wheel cantilever-type planting mechanism, this planting mechanism adopts planet gear type transmission, although transmission stability is better, but when processing different spacing in the rows transplanting, owing to adopting planet gear transmission, jib-length (i.e. parameter R) is difficult to change, be difficult to ensure that duckbilled run trace is for approximate cycloid, this makes duckbilled walking path in soil longer, and the active force between duckbilled and soil increases, and Planting effect is not ideal.
Summary of the invention
For Shortcomings in prior art, the invention provides a kind of chain-drive planting mechanism.
The present invention realizes above-mentioned technical purpose by following technological means.
A kind of chain-drive planting mechanism, transmission device, seedling-planting device, described seedling-planting device comprises cam, cam follower, cam follower guide pad, sapling planter cantilever and duck-beak type sapling planter, also comprise chain and sprocket driving device, rotating shaft, power input shaft, described spiral arm support is fixedly connected with power input shaft by axle sleeve, described spiral arm support is rotationally connected by bearing and rotating shaft, and described seedling-planting device is fixedly mounted on this rotating shaft, and described power input shaft and rotating shaft are on same straight line; Described chain and sprocket driving device comprises movable sprocket, fixed chain wheels, tensioning apparatus, described fixed chain wheels is duplex chain wheel, this fixed chain wheels is fixed in transplanter frame, described power input shaft passes fixed chain wheels and forms revolute pair with fixed chain wheels and is connected, this movable sprocket is fixedly connected on described rotating shaft, and described movable sprocket is connected with sprocket wheel inside and outside described fixed chain wheels respectively by driving chain; Described power input shaft drives seedling-planting device unitary rotation by spiral arm support, and described chain and sprocket driving device makes the sapling planter cantilever of seedling-planting device remain level.
Further, described tensioner apparatus is fixedly mounted on two sides of drawing together socket part of described fixing spiral arm, described tensioner apparatus comprises tension pulley support seat, tension pulley support, elastic component and regulating wheel, described tension pulley support seat is fixed on two sides of described spiral arm support by screw, one end of described tension pulley support is rotatably installed on described tension pulley support seat, and its other end is provided with regulating wheel; Described elastic component is arranged on the connecting portion of tension pulley support seat and tension pulley support.
Further, described elastic component is torsionspring, makes this tensioner apparatus keep opening, thus reach the object keeping the tensioning of chain moment by the elastic force of this torsionspring.
Further, described spiral arm support is the support of extension type; This spiral arm support comprises flexible spiral arm and fixing spiral arm, described fixing spiral arm comprises socket part and extension, described socket part is the hollow bushing of rectangle, described extension is the plate that described socket part reverse side extends to outside, two ends, described flexible spiral arm is socketed in the inside of fixing spiral arm, this flexible spiral arm can at fixing spiral arm internal slide, and described flexible spiral arm realizes location by detent mechanism.
Further, the center of described fixing spiral arm socket part offers power shaft installing hole, and this power shaft installing hole is provided with the axle sleeve of band key, one end of described axle sleeve and socket part front flush, the other end protrudes from the reverse side of socket part; Described spiral arm support entirety is fixedly mounted on power input shaft by this axle sleeve.
Further, the extension of described fixing spiral arm is also provided with contraposition slotted eye, described contraposition slotted eye is extended deep to the positive and negative of socket part always, then on socket part, deepening has the circular hole part of contraposition slotted eye, and the circular hole part on socket part is mated mutually with power shaft installing hole; When described contraposition slotted eye can avoid described flexible spiral arm to shrink slip toward spiral arm carriage center, rotating shaft and described fixing spiral arm interfere.
Further, the one end of described flexible spiral arm inserting described fixing spiral arm has semicircle mating hole, this semicircle mating hole is mated mutually with the power shaft installing hole on described fixing spiral arm, the other end of described flexible spiral arm has seedling-planting device installing hole, and described seedling-planting device installing hole is provided with rotating shaft by bearing.
Further, on the flexible spiral arm that described detent mechanism is arranged on described spiral arm support and fixing spiral arm, described detent mechanism comprises dog screw and positioning screw hole group; Described positioning screw hole group is located on described telescopic cantilever, and this positioning screw hole group is arranged at intervals between mating hole and seedling-planting device installing hole; Described screw location group is no less than two groups, and the positioning screw hole often organized is no less than two; Position near contraposition slotted eye on described fixing spiral arm is provided with one group of locating hole, and the position of described locating hole corresponds to the position of described positioning screw hole group; Described dog screw is through locating hole and positioning screw hole group thus realize the location of described flexible spiral arm.
Further, described spiral arm support also comprises nylon slide block, and described nylon slide block comprises the first nylon slide block and the second nylon slide block, and described first nylon slide block is fixed on the inner side in front, socket part, and described second nylon slide block is fixed on the inner side of socket part reverse side; Described nylon slide block is for reducing the frictional force between flexible spiral arm and fixing spiral arm.
The beneficial effect of this patent is: (1) described chain-drive planting mechanism adopts double strand chain transmission, can reduce total quality and the manufacturing cost of planting mechanism preferably; (2) while described sprocket tension device can be implemented in parameter R change, under the condition not needing disassembling, assembling and replacing chain, still can stable delivery torque; (3) when converting different transplanting spacing in the rows, the its length of spiral arm support (namely changing parameter R) can be regulated easily, the dynamic track that duckbilled is planted is approximately cycloid (λ=1), thus reduce duckbilled walking path in soil, and the active force reduced between duckbilled and soil, ensure that good Planting effect.
Accompanying drawing explanation
Fig. 1 is the geometric locus figure of planting apparatus duckbilled when getting different λ value.
Fig. 2 is the structural representation of chain-drive planting mechanism.
Fig. 3 is the end view of chain-drive planting mechanism.
Structural representation when Fig. 4 is the flexible spiral arm contraction of chain-drive planting mechanism.
Fig. 5 is the structural representation of spiral arm support and tensioning apparatus.
Fig. 6 is the structural representation of spiral arm support.
Fig. 7 is the structural representation of telescopic cantilever.
Fig. 8 is the structural representation of fixing spiral arm.
Fig. 9 is the structural representation of nylon slide block.
In figure, 1, flexible spiral arm; 2, bearing; 3, rotating shaft; 4, movable sprocket; 5, fixed chain wheels; 6, driving chain; 7, fixing spiral arm; 8, tensioner apparatus; 8-1, tension pulley support seat; 8-2, tension pulley support; 8-3, elastic component; 8-4, regulating wheel; 9, duck-beak type sapling planter; 10, cam follower guide pad; 11, cam follower; 12, cam; 13, sapling planter cantilever; 14, power input shaft; 15, transplanter frame; 16, axle sleeve; 17, power shaft installing hole; 18, semicircle mating hole; 19, seedling-planting device installing hole; 20, contraposition slotted eye; 21, nylon slide block; 21-1, the first nylon slide block; 22, the second nylon slide block.
Embodiment
Below in conjunction with accompanying drawing and specific embodiment, the present invention is further illustrated, but protection scope of the present invention is not limited to this.
As shown in Figure 2, chain-drive planting mechanism is made up of telescopic spiral arm support, chain and sprocket driving device, seedling-planting device.Described seedling-planting device comprises wheel 12, cam follower 11, cam follower guide pad 10, sapling planter cantilever 13 and duck-beak type sapling planter 9, as shown in Figure 2, the disk cam mechanism that duck-beak type sapling planter 9 open and close movement is made up of cam 12, cam follower 11 controls, cam 12 rotates and actuating cam push rod 11 moves along cam follower guide pad 10 guide groove direction, after cam follower 9 connects promotion sapling planter by higher pair, volume rotates around fixed axis, after sapling planter, volume is rotated backward around fixed axis by higher pair contact promotion sapling planter forehead, and the opening and closing realizing duck-beak type sapling planter is closed.
As shown in Figure 6, spiral arm support comprises flexible spiral arm 1 and fixing spiral arm 7, and described flexible spiral arm 1 is socketed in the inside of described fixing spiral arm 1, and this flexible spiral arm 1 can in the inner telescopic slide of described fixing spiral arm 7.As shown in Figure 8, described fixing spiral arm 7 comprises socket part 7-1 and extension 7-2, and described socket part 7-1 is the hollow bushing of rectangle, and described extension 7-2 is the plate that described socket part 7-1 reverse side extends to outside, two ends.The center of described fixing spiral arm socket part 7-1 has power shaft installing hole 17, and this power shaft installing hole 17 is provided with the axle sleeve 16 of band key, one end of described axle sleeve 16 and socket part 7-1 front flush, the other end protrudes from the reverse side of socket part 7-1.The extension 7-2 of described fixing spiral arm 7 is also provided with contraposition slotted eye 20, described contraposition slotted eye 20 is extended deep to the positive and negative of socket part 7-1 always, then on the 7-1 of socket part, deepening has the circular hole part of contraposition slotted eye 20, and the circular hole part on the 7-1 of socket part is mated mutually with power shaft installing hole 17.Described contraposition slotted eye 20 can avoid described flexible spiral arm 1 toward spiral arm carriage center shrink slide time rotating shaft 3 interfere with described fixing spiral arm 7, thus extend the adjustable range that flexible spiral arm 1 slides in fixing spiral arm 7.
As shown in Figure 7, the one end of described flexible spiral arm 1 inserting described fixing spiral arm 7 has semicircle mating hole 18, this semicircle mating hole 18 is mated mutually with the power shaft installing hole 17 on described fixing spiral arm, the other end of described flexible spiral arm 1 has seedling-planting device installing hole 19, this semicircle mating hole 18 for avoid flexible spiral arm 1 toward spiral arm carriage center shrink slide time and power input shaft 14 interfere.
As shown in Figure 3, chain-drive planting mechanism comprises rotating shaft 3, power input shaft 14, and described rotating shaft 3 is on same straight line with power input shaft 14.Described rotating shaft 3 is rotatably installed in by bearing 2 on the seedling-planting device installing hole 19 of the flexible spiral arm 1 of telescopic spiral arm support.Described telescopic spiral arm support entirety is fixedly mounted on power input shaft 14 by axle sleeve 16, and described power input shaft 14 drives whole spiral arm holder pivots.
As shown in Figure 2,3, 4, chain and sprocket driving device comprises movable sprocket 4, fixed chain wheels 5 and driving-chain 6, described fixed chain wheels 5 is duplex chain wheel, this movable sprocket 4 is fixedly connected on rotating shaft 3, this fixed chain wheels one side is fixed in transplanter frame 15, fixed chain wheels another side boss 16 contacts, and described power input shaft passes described fixed chain wheels 5 and forms revolute pair with fixed chain wheels 5 and is connected.As shown in Figure 1, described movable sprocket 4 is connected with sprocket wheel inside and outside described fixed chain wheels respectively by driving chain 6.
As shown in Figure 2, power input shaft 14 drives pole bracket unitary rotation, under the drive of integral support, movable sprocket 4 is rotated around fixed chain wheels 5, sapling planter cantilever 13 rotates around power shaft 3 at the drive further aspect of chain and sprocket driving device, rotate with contrary peripheral speed under the drive of movable sprocket 4 simultaneously, under the acting in conjunction of above-mentioned two kinds of rotary motions, make the duck-beak type sapling planter 9 on sapling planter cantilever remain posture perpendicular to ground.
As shown in Figure 5, tensioner apparatus 8 is fixedly mounted on two sides of the socket part 7-1 of described fixing spiral arm 7, described tensioner apparatus 8 comprises tension pulley support seat 8-1, tension pulley support 8-2, elastic component 8-3 and regulating wheel 8-4, described tension pulley support seat 8-1 is fixed on two sides of socket part 7-1 by screw, one end of described tension pulley support 8-2 is rotatably installed on described tension pulley support seat 8-1, and its other end is provided with regulating wheel; Described elastic component 8-3 is arranged on the connecting portion of tension pulley support seat 8-1 and tension pulley support 8-2.
As shown in Figure 6, detent mechanism is arranged on the flexible spiral arm 1 of described spiral arm support with on fixing spiral arm 7, and described detent mechanism comprises dog screw 24 and positioning screw hole group 23.As shown in Figure 7, described positioning screw hole group 23 is located on described telescopic cantilever 1, and this positioning screw hole group 23 is arranged at intervals between mating hole 18 and seedling-planting device installing hole 19; Described screw location group is no less than two groups, and the positioning screw hole often organized is no less than two.As shown in Figure 8, the position near contraposition slotted eye 20 on described fixing spiral arm 7 is provided with one group of locating hole 25, and the position of described locating hole 25 corresponds to the position of described positioning screw hole group 23; Described dog screw 24 realizes the location of described flexible spiral arm 1 through locating hole 25 with positioning screw hole group 23.
As shown in Fig. 2 and Fig. 4, first dog screw 24 is turned on, then by regulating flexible spiral arm 1 increase with the relative position of fixing spiral arm 7 or reduce the entire length of spiral arm support, make locating hole 25 corresponding with suitable positioning screw hole group 23 position after determining the length of spiral arm support, finally screw the adjustment that dog screw 24 completes spiral arm stent length.When increasing the length of telescopic cantilever support, described movable sprocket 4 then increases with the centre-to-centre spacing of fixed chain wheels 5 thereupon, and now tensioning apparatus 8 overcomes the elastic force of elastic component 8-3 and inwardly shrinks thus keep the tensioning state of driving chain 6.When reducing the length of telescopic cantilever support, described movable sprocket 4 then reduces with the centre-to-centre spacing of fixed chain wheels 5 thereupon, and now tensioning apparatus 8 outwards opens thus keeps the tensioning state of driving chain 6 under the effect of the elastic force of elastic component 8-3.Under telescopic cantilever support changes length condition, described sprocket tension device 8 can make driving chain 6 keep tensioning thus realize stable delivery torque, and does not need the chain changeing appropriate length according to the length of pole bracket.
As shown in Fig. 6 and Fig. 9, nylon slide block 21 is located at the inner side of fixing spiral arm 7, nylon slide block 1 comprises the first nylon slide block 21-1 and the second nylon slide block 21-2, described first nylon slide block 21-1 is fixed on the inner side in 7-1 front, fixing spiral arm socket part, and described second nylon slide block 21-2 is fixed on the inner side of fixing spiral arm socket part 7-1 reverse side.Described nylon slide block contacts with flexible spiral arm 1, and it is for reducing the frictional force between flexible spiral arm 1 and fixing spiral arm 7.
Described embodiment is preferred embodiment of the present invention; but the present invention is not limited to above-mentioned embodiment; when not deviating from flesh and blood of the present invention, any apparent improvement that those skilled in the art can make, replacement or modification all belong to protection scope of the present invention.
Claims (9)
1. a chain-drive planting mechanism, comprise spiral arm support, seedling-planting device, described seedling-planting device comprises cam (12), cam follower (11), cam follower guide pad (10), sapling planter cantilever (13) and duck-beak type sapling planter (9), it is characterized in that, also comprise chain and sprocket driving device, rotating shaft (3), power input shaft (14), described spiral arm support is fixedly connected with power input shaft (14) by axle sleeve (16), described spiral arm support is rotationally connected by bearing (2) and rotating shaft (3), described seedling-planting device is fixedly mounted on this rotating shaft (3), described power input shaft (14) and rotating shaft (3) are on same straight line, described chain and sprocket driving device comprises movable sprocket (4), fixed chain wheels (5), tensioning apparatus (8), described fixed chain wheels (5) is duplex chain wheel, this fixed chain wheels is fixed in transplanter frame (15), described power input shaft (14) is through fixed chain wheels (5) and form revolute pair with fixed chain wheels (5) and be connected, this movable sprocket (4) is fixedly connected on described rotating shaft (3), and described movable sprocket (4) is connected with the inside and outside sprocket wheel of described fixed chain wheels respectively by driving chain (6), described power input shaft (14) drives seedling-planting device unitary rotation by spiral arm support, and described chain and sprocket driving device makes the sapling planter cantilever (13) of seedling-planting device remain level.
2. a kind of chain-drive planting mechanism as claimed in claim 1, it is characterized in that, described tensioner apparatus (8) is fixedly mounted on two sides of drawing together socket part (7-1) of described fixing spiral arm (7), described tensioner apparatus (8) comprises tension pulley support seat (8-1), tension pulley support (8-2), elastic component (8-3) and regulating wheel (8-4), described tension pulley support seat (8-1) is fixed on two sides of described spiral arm support by screw, one end of described tension pulley support (8-2) is rotatably installed on described tension pulley support seat (8-1), its other end is provided with regulating wheel (8-4), described elastic component (8-3) is arranged on the connecting portion of tension pulley support seat (8-1) and tension pulley support (8-2).
3. a kind of chain-drive planting mechanism as claimed in claim 1, it is characterized in that, described elastic component (8-3) is torsionspring, makes this tensioner apparatus (8) keep opening, thus reach the object keeping the tensioning of chain moment by the elastic force of this torsionspring.
4. a kind of chain-drive planting mechanism as claimed in claim 1, is characterized in that, described spiral arm support is the support of extension type; This spiral arm support comprises flexible spiral arm (1) and fixing spiral arm (7), described fixing spiral arm (7) comprises socket part (7-1) and extension (7-2), the hollow bushing that described socket part (7-1) is rectangle, the plate that described extension (7-2) extends to outside, two ends for described socket part (7-1) reverse side, described flexible spiral arm (1) is socketed in the inside of fixing spiral arm (7), this flexible spiral arm (1) can at fixing spiral arm (7) internal slide, and described flexible spiral arm (1) realizes location by detent mechanism.
5. a kind of chain-drive planting mechanism as claimed in claim 4, it is characterized in that, the center of described fixing spiral arm socket part (7-1) offers power shaft installing hole (17), this power shaft installing hole (17) is provided with the axle sleeve (16) of band key, one end of described axle sleeve (16) and socket part (7-1) front flush, the other end protrudes from the reverse side of socket part (7-1); Described spiral arm support entirety is fixedly mounted on power input shaft (14) by this axle sleeve (16).
6. a kind of chain-drive planting mechanism as claimed in claim 5, it is characterized in that, the extension (7-2) of described fixing spiral arm (7) is also provided with contraposition slotted eye (20), described contraposition slotted eye (20) is extended deep to the positive and negative of socket part (7-1) always, then socket part (7-1) upper deepening has the circular hole part of contraposition slotted eye (20), and the circular hole part on socket part (7-1) is mated mutually with power shaft installing hole (17); When described contraposition slotted eye (20) can avoid described flexible spiral arm (1) to shrink slip toward spiral arm carriage center, rotating shaft (3) interferes with described fixing spiral arm (7).
7. a kind of chain-drive planting mechanism as claimed in claim 6, it is characterized in that, the upper one end of inserting described fixing spiral arm (7) of described flexible spiral arm (1) has semicircle mating hole (18), this semicircle mating hole (18) is mated mutually with the power shaft installing hole (17) on described fixing spiral arm (7), the other end of described flexible spiral arm (1) has seedling-planting device installing hole (19), and described seedling-planting device installing hole (19) is provided with rotating shaft (3) by bearing (2).
8. a kind of chain-drive planting mechanism as described in claim 4 or 5 or 6 or 7, it is characterized in that, described detent mechanism is arranged on the flexible spiral arm (1) of described spiral arm support with on fixing spiral arm (7), and described detent mechanism comprises dog screw (24) and positioning screw hole group (23); Described positioning screw hole group (23) is located on described telescopic cantilever (1), and this positioning screw hole group (23) is arranged at intervals between mating hole (18) and seedling-planting device installing hole (19); Described screw location group (23) is no less than two groups, and the positioning screw hole often organized (23) is no less than two; The upper position near contraposition slotted eye (20) of described fixing spiral arm (7) is provided with one group of locating hole (25), and the position of described locating hole (25) corresponds to the position of described positioning screw hole group (23); Described dog screw (24) is through locating hole (25) and positioning screw hole group (23) thus realize the location of described flexible spiral arm (1).
9. a kind of chain-drive planting mechanism as described in claim 4 or 5 or 6 or 7, it is characterized in that, described spiral arm support also comprises nylon slide block (21), described nylon slide block (21) comprises the first nylon slide block (21-1) and the second nylon slide block (21-2), described first nylon slide block (21-1) is fixed on the inner side in socket part (7-1) front, and described second nylon slide block (21-2) is fixed on the inner side of socket part (7-1) reverse side; Described nylon slide block is for reducing the frictional force between flexible spiral arm (1) and fixing spiral arm (7).
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| CN201510331223.0A CN104982128B (en) | 2015-06-16 | 2015-06-16 | A kind of chain-drive planting mechanism |
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| CN201510331223.0A CN104982128B (en) | 2015-06-16 | 2015-06-16 | A kind of chain-drive planting mechanism |
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| CN104982128B CN104982128B (en) | 2017-05-31 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112470637A (en) * | 2020-12-19 | 2021-03-12 | 王春堂 | Two-row transplanting machine for small peppers |
| CN116034693A (en) * | 2023-02-09 | 2023-05-02 | 中国热带农业科学院热带作物品种资源研究所 | Fertilizer structure of fertilizer distributor and fertilizer distributor thereof |
| WO2023226857A1 (en) * | 2022-05-26 | 2023-11-30 | 南通大学 | Stair cleaning robot based on retractable rotating arms |
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| CN102498807A (en) * | 2011-11-03 | 2012-06-20 | 江苏大学 | Planetary-wheel cantilever-type planting mechanism |
| JP2013212127A (en) * | 2013-07-23 | 2013-10-17 | Iseki & Co Ltd | Seedling transplanter |
| CN103907435A (en) * | 2014-04-21 | 2014-07-09 | 浙江理工大学 | High-verticality secondary sine non-circular gear planetary system duck-billed seedling planting mechanism |
| CN204762086U (en) * | 2015-06-16 | 2015-11-18 | 江苏大学 | Chain drive formula mechanism of planting seedlings |
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| CN202197542U (en) * | 2011-08-01 | 2012-04-25 | 河南银丰机械制造有限公司 | Punching transplanting device for transplanter |
| CN102498807A (en) * | 2011-11-03 | 2012-06-20 | 江苏大学 | Planetary-wheel cantilever-type planting mechanism |
| JP2013212127A (en) * | 2013-07-23 | 2013-10-17 | Iseki & Co Ltd | Seedling transplanter |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112470637A (en) * | 2020-12-19 | 2021-03-12 | 王春堂 | Two-row transplanting machine for small peppers |
| WO2023226857A1 (en) * | 2022-05-26 | 2023-11-30 | 南通大学 | Stair cleaning robot based on retractable rotating arms |
| CN116034693A (en) * | 2023-02-09 | 2023-05-02 | 中国热带农业科学院热带作物品种资源研究所 | Fertilizer structure of fertilizer distributor and fertilizer distributor thereof |
| CN116034693B (en) * | 2023-02-09 | 2023-06-30 | 中国热带农业科学院热带作物品种资源研究所 | Fertilizer structure of fertilizer distributor and fertilizer distributor thereof |
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| CN104982128B (en) | 2017-05-31 |
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Effective date of registration: 20230927 Address after: No. 49 Yangba, Zhongxin Village, Zhoutie Town, Yixing City, Wuxi City, Jiangsu Province, 214200 Patentee after: Jiangsu Yihe Agricultural Technology Co.,Ltd. Address before: Zhenjiang City, Jiangsu Province, 212013 Jingkou District Road No. 301 Patentee before: JIANGSU University |