CN110122011B - Wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment - Google Patents
Wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment Download PDFInfo
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- CN110122011B CN110122011B CN201910311042.XA CN201910311042A CN110122011B CN 110122011 B CN110122011 B CN 110122011B CN 201910311042 A CN201910311042 A CN 201910311042A CN 110122011 B CN110122011 B CN 110122011B
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- fertilizer
- root
- sliding sleeve
- frame
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C15/00—Fertiliser distributors
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/062—Devices for making drills or furrows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C5/00—Making or covering furrows or holes for sowing, planting or manuring
- A01C5/06—Machines for making or covering drills or furrows for sowing or planting
- A01C5/066—Devices for covering drills or furrows
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01G—HORTICULTURE; CULTIVATION OF VEGETABLES, FLOWERS, RICE, FRUIT, VINES, HOPS OR SEAWEED; FORESTRY; WATERING
- A01G7/00—Botany in general
- A01G7/06—Treatment of growing trees or plants, e.g. for preventing decay of wood, for tingeing flowers or wood, for prolonging the life of plants
Abstract
The invention discloses a wheat root breaking and layering fertilizer applicator convenient for row spacing adjustment, which comprises a rack, a traction support, at least two adjusting devices, a root breaking mechanism, a walking frame, a fertilizer applying mechanism and a hydraulic system, wherein the at least two adjusting devices are sequentially arranged at intervals along a cross beam of the rack. The adjusting device comprises a sliding sleeve, a hydraulic cylinder and a shifting fork, the sliding sleeve is in sliding fit with the cross beam, the hydraulic cylinder is fixed on the cross beam, and the telescopic end of the hydraulic cylinder can drive the sliding sleeve to move. The front side of each sliding sleeve is provided with a root breaking mechanism, and the rear side of each sliding sleeve is fixedly connected with a shifting fork. The walking frame is positioned at the rear side below the rack, and walking wheels which are equal in number and correspond to the adjusting devices one to one are arranged on the walking frame. Each walking wheel is in sliding fit with a mounting shaft arranged on the walking frame through a sliding seat, and each shifting fork can drive the corresponding walking wheel to move. The invention has the characteristics of reasonable structural design, convenient interval adjustment, high automation degree, good adaptability, high working efficiency and the like, and improves the effects of root breaking and fertilization.
Description
Technical Field
The invention relates to the technical field of agricultural equipment, in particular to a wheat root-breaking layered fertilizer applicator convenient for row spacing adjustment.
Background
The row spacing of wheat is different in different regions and different wheat varieties during sowing. A root breaking knife upright post of the existing fertilizer applicator for breaking the root of wheat is fixedly connected with a frame, a land wheel is fixed on a walking frame at the rear side of the frame, and a root breaking knife and a ditching shovel are arranged on the root breaking knife upright post after the installation is finished. The installation positions of the root breaking knife and the ditching shovel on the frame can not be adjusted, the distance between the root breaking knife can not be adjusted when the wheat roots are broken and fertilizer is applied, and the existing wheat root breaking fertilizer applicator can not correspond to the row spacing of the wheat. In addition, the land wheel is used for compacting the covering soil after root breaking and fertilization, volatilization of fertilizers is reduced, the land wheel corresponds to the front and the back of the root breaking knife and the ditching shovel, and the land wheel cannot correspond to the row spacing of the wheat. Under the condition of inaccurate row spacing, the root breaking and the fertilizing effect are not ideal. Specifically, the fertilizer can be deviated to one side of the wheat row spacing, so that the fertilizer is too close to the wheat ridge on one side and burns roots, the fertilizer is too far from the wheat ridge on the other side and is insufficient in fertilizer supply, and in addition, the root breaking knife is deviated to one side of the wheat row spacing, so that the root breaking effect of the wheat ridges on two sides is poor. In order to change the situation, a synchronous adjusting mechanism of the land wheel and the root cutting knife is urgently needed, the land wheel and the root cutting knife can be adjusted left and right, the land wheel and the root cutting knife correspond to the row spacing of wheat, and the synchronous adjusting mechanism is suitable for the requirement of agricultural production.
Disclosure of Invention
Aiming at the defects of the prior art, the invention aims to provide a wheat root breaking layered fertilizer applicator convenient for adjusting the line spacing, and solves the problems that the width of a root breaking knife and a land wheel cannot be conveniently adjusted according to the actual line spacing of wheat in the wheat root breaking and fertilizing processes, so that the root breaking and fertilizing effects are not ideal.
In order to solve the technical problems, the technical scheme adopted by the invention is as follows:
the utility model provides a wheat broken root layering fertilizer distributor convenient to row spacing adjustment, includes the frame, draws support, adjusting device, broken root mechanism, walking frame, fertilizing mechanism and hydraulic system, draws the support to fix in the front side of frame, and the middle part fixed mounting of frame has the crossbeam. The adjusting devices are at least two, and all the adjusting devices are sequentially arranged at intervals along the extending direction of the cross beam. The adjusting device comprises a sliding sleeve, hydraulic cylinders and a shifting fork, the sliding sleeve is movably sleeved on the outer side of the cross beam, the hydraulic cylinders are fixed on the cross beam, the telescopic ends of the hydraulic cylinders can drive the sliding sleeve to move axially along the cross beam, and each hydraulic cylinder is connected with a hydraulic system. The front side of each sliding sleeve is provided with one root breaking mechanism, and the rear side of each sliding sleeve is fixedly connected with a shifting fork. The walking frame is arranged at the rear side below the rack, and walking wheels which are equal in number and correspond to the adjusting devices one to one are arranged on the walking frame. Every walking wheel all through a sliding seat with establish the installation axle sliding fit on walking frame, each shift fork can drive the walking wheel that corresponds and follow installation axle axial displacement.
Preferably, the two sides of the front end of the walking frame are respectively hinged with the frame, and the two sides of the rear part of the walking frame are respectively connected with the frame in an adjustable way through adjusting screws.
Preferably, the mounting shaft is a square shaft, and two ends of the mounting shaft are in running fit with the walking frame. The sliding seat is movably sleeved outside the mounting shaft and fixedly connected with the corresponding walking wheel, and the walking wheel drives the square shaft to rotate in the working state.
Preferably, disconnected root mechanism includes mount pad, ditching shovel and disconnected root sword, and the mount pad can be dismantled fixedly with the slip cap and link to each other, the vertical clearance fit of upper end and the mount pad of ditching shovel, and disconnected root sword is established in the below of ditching shovel.
Preferably, the root breaking knife is a trapezoidal metal plate with a narrow front part and a wide rear part, and is horizontally fixed at the bottom of the furrowing blade, and the middle rear part of the root breaking knife extends out towards two sides relative to the furrowing blade.
Preferably, the fertilizing mechanism comprises a fertilizer box and a fertilizer applicator, the fertilizer box is fixedly arranged on the front side above the rack, and the bottom of the fertilizer box is provided with fertilizer outlets with the number equal to that of the root breaking devices. The fertilizer applicator is arranged below each fertilizer outlet, the bottom of the fertilizer applicator is connected with a fertilizer conveying pipe, and the fertilizer conveying pipes are respectively connected with the root breaking devices in a one-to-one correspondence manner.
Preferably, the hydraulic system comprises a hydraulic station, the hydraulic station is provided with electromagnetic valves which are equal to the hydraulic cylinders in number and correspond to the hydraulic cylinders one by one, and the hydraulic station supplies oil and returns oil to the hydraulic cylinders through the electromagnetic valves.
Preferably, the solenoid valves are three-position four-way solenoid valves, and each solenoid valve is superposed with a throttle valve.
Preferably, the cross beam is a square shaft, and the sliding sleeve is a square sleeve matched with the square shaft.
By adopting the technical scheme, the invention has the beneficial technical effects that: the wheat root cutting and fertilizing device is reasonable in structural design, convenient to adjust the distance between the root cutting knife and the land wheel, capable of automatically adjusting according to the actual row spacing of wheat, capable of improving the effects of root cutting and fertilizing, and fast in adjustment, high in automation degree, good in adaptability, high in working efficiency and the like.
Drawings
FIG. 1 is a schematic view of the structural principle of the wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment.
Fig. 2 is a schematic view of a wheat root-cutting layered fertilizer applicator convenient for adjusting row spacing.
FIG. 3 is a schematic diagram of a right view structure of the wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment.
Fig. 4 is a schematic view of a portion of fig. 1, showing an adjustment device.
Detailed Description
The invention is described in detail below with reference to the accompanying drawings:
with reference to fig. 1 to 4, a wheat root breaking layered fertilizer applicator convenient for adjusting row spacing comprises a frame 1, a traction support 11, an adjusting device, a root breaking mechanism 4, a walking frame 2, a fertilizer applying mechanism 5 and a hydraulic system 6, wherein the traction support 11 is fixed on the front side of the frame 1, a beam 12 is arranged in the middle of the frame 1 in a water balance direction, and two ends of the beam 12 are fixedly connected with the frame 1 into a whole. The adjusting devices are four in number, and all the adjusting devices are sequentially arranged at intervals along the extending direction of the cross beam 12. The adjusting device comprises a sliding sleeve 31, a hydraulic cylinder 32 and a shifting fork 33, wherein the sliding sleeve 31 is movably sleeved outside the cross beam 12, the hydraulic cylinder 32 is fixed on the cross beam 12, the telescopic end of the hydraulic cylinder can drive the sliding sleeve 31 to move along the axial direction of the cross beam 12, and each hydraulic cylinder 32 is connected with the hydraulic system 6.
The crossbeam 12 is the square shaft, and sliding sleeve 31 is the square sleeve with square shaft matched with, and sliding sleeve 31 overlaps the outside of crossbeam 12, can slide along the axis of crossbeam 12, and the flexible end of pneumatic cylinder 32 is fixed continuous with the one end of sliding sleeve 31, and drive sliding sleeve 31 moves along crossbeam 12. The hydraulic system 6 includes a hydraulic station 61, the hydraulic station 61 is provided with electromagnetic valves 62 corresponding to the hydraulic cylinders 32 in one-to-one number, and the hydraulic station 61 supplies and returns oil to the hydraulic cylinders 32 through the electromagnetic valves 62. The electromagnetic valves 62 are three-position four-way electromagnetic valves, a throttle valve is superposed on each electromagnetic valve 62, and the hydraulic system 6 controls each hydraulic cylinder 32 to drive the sliding sleeve 31 connected with the telescopic end of the hydraulic cylinder to move, so that the position of each sliding sleeve 31 on the beam 12 is adjusted.
The front side of each sliding sleeve 31 is provided with one root breaking mechanism 4, the rear side of each sliding sleeve 31 is provided with a shifting fork 33, the shifting fork 33 is fixedly connected with the sliding sleeve 31 through an extension arm 34, the extension arm 34 is longitudinally arranged, the front end of the extension arm is fixedly welded with the sliding sleeve 31, the rear end of the extension arm is fixedly welded with the upper end of the shifting fork 33, and the root breaking mechanism 4 on the front side of the sliding sleeve 31 is forwardly and backwardly corresponding to the shifting fork 33 on the rear side of the sliding sleeve 31. The root breaking mechanism 4 comprises a mounting seat 41, a ditching shovel 42 and a root breaking knife 43, the mounting seat 41 is located on the front side of the sliding sleeve 31 and fixedly connected with the sliding sleeve 31 through a bolt, the upper end of the ditching shovel 42 is vertically movably matched with the mounting seat 41, a compression spring 45 is arranged on the upper portion of the ditching shovel 42, and the ditching shovel 42 is used for ditching among the row spacing of wheat and fertilizing the wheat.
The root cutter 43 is arranged below the ditching shovel 42, the root cutter 43 is a trapezoidal metal plate with a narrow front part and a wide rear part, and is horizontally fixed at the bottom of the furrowing shovel 42, the middle rear part of the root breaking knife 43 extends out towards two sides relative to the furrowing shovel 42, in the advancing process of the furrowing shovel 42, the two sides of the root cutting knife 43 cut the root of the wheat, if the root cutting knife is deviated to one side during the root cutting, the root hair and the root cutting of the wheat on one side are too deep, the root damage is seriously unfavorable for the rooting of the wheat, the root hair and the root cutting of the wheat on the other side are too shallow, the purpose of the root cutting can not be achieved, therefore, the root cutting knife 43 is required to walk along the middle position of two rows of wheat during the walking process, before the root cutting fertilization operation, the root cutting mechanism 4 arranged on the frame 1 is required to be adjusted according to the actual row spacing of the wheat in the field, the position of the sliding sleeve 31 is adjusted through the hydraulic system 6, and the root cutting knife 43 is transversely adjusted left and right, so that the adaptive quick adjustment of the distance between the root cutting knife 43 and the wheat is realized.
The walking frame 2 is arranged on the rear side below the rack 1, two sides of the front end of the walking frame 2 are respectively hinged with the rack 1, two sides of the rear part of the walking frame 2 are respectively connected with the rack 1 in an adjustable mode through adjusting screws and springs, and walking wheels 21 which are equal to the adjusting devices in number and are opposite to the adjusting devices in position one by one are arranged on the walking frame 2. Every walking wheel 21 all through a sliding seat 22 with establish installation axle 23 sliding fit on walking frame 2, sliding seat 22 fixed mounting is on walking wheel 21's wheel hub, installation axle 23 is the square shaft, its both ends through bearing and walking frame 2 normal running fit, sliding seat 22 has seted up and has installed axle 23 matched with square hole. In the working state, the travelling wheels 21 are in contact with the ground, the travelling frame 2 advances to drive the travelling wheels 21 to rotate, and the travelling wheels 21 drive the mounting shaft 23 to rotate relative to the travelling frame 2.
The lower end of each shifting fork 33 extends into two sides of the sliding seat 22 of the corresponding travelling wheel 21, the shifting forks 33 are not contacted with the mounting shaft 23, the corresponding sliding seats 22 are driven to move along the axial direction of the mounting shaft when the shifting forks 33 move, after the adjustment is completed, the positions of the shifting forks 33 are kept still, the sliding seats 22 are limited on the inner sides of the shifting forks, the sliding seats 22 can only be arranged in the space on the inner sides of the shifting forks 33, and the distance between the travelling wheels 21 is basically kept unchanged during the operation. The fertilizing mechanism 5 comprises a fertilizer box 51 and a fertilizer applicator 52, the fertilizer box 51 is fixedly arranged on the front side above the rack 1, and fertilizer outlets equal in number to the root breaking mechanisms 4 are arranged at the bottom of the fertilizer box. Every fertilizer outlet below all is equipped with one fertilizer applicator 52, each fertilizer applicator 52 links to each other through fertilizer applicator drive shaft 53, and fertilizer applicator drive shaft 53 passes through chain sprocket mechanism and links to each other with installation axle 23, and walking wheel 21 passes through the work of chain sprocket mechanism drive fertilizer applicator 52, chain sprocket mechanism adopts prior art, and the installation axle 23 drive fertilizer applicator drive shaft 53 of can realizing installing through the quantity and the position of reasonable setting sprocket, chain of technical personnel in the field rotates. The bottom of the fertilizer applicator 52 is connected with fertilizer pipes which are respectively connected with the root breaking mechanisms 4 in a one-to-one correspondence manner, and fertilizer is supplied to the root breaking mechanisms 4 through the fertilizer pipes. After the root breaking mechanism 4 finishes ditching, root breaking and fertilizing, the soil covering fork 44 arranged at the rear side of the ditching shovel 42 is used for covering soil, and the walking wheels 21 are used for crushing and pressing the soil covering, so that fertilizer volatilization is reduced, and the utilization rate of fertilizer efficiency is improved.
Parts which are not described in the invention can be realized by adopting or referring to the prior art.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting.
It is to be understood that the above description is not intended to limit the present invention, and the present invention is not limited to the above examples, and those skilled in the art may make modifications, alterations, additions or substitutions within the spirit and scope of the present invention.
Claims (7)
1. A wheat root-breaking layered fertilizer applicator convenient for row spacing adjustment comprises a frame, a traction support, an adjusting device, a root-breaking mechanism, a walking frame, a fertilizer application mechanism and a hydraulic system, and is characterized in that the traction support is fixed on the front side of the frame, and a cross beam is fixedly arranged in the middle of the frame; the number of the adjusting devices is at least two, and all the adjusting devices are sequentially arranged at intervals along the extension direction of the cross beam; the adjusting device comprises a sliding sleeve, hydraulic cylinders and a shifting fork, the sliding sleeve is movably sleeved on the outer side of the cross beam, the hydraulic cylinders are fixed on the cross beam, the telescopic ends of the hydraulic cylinders can drive the sliding sleeve to move axially along the cross beam, and each hydraulic cylinder is connected with a hydraulic system; the front side of each sliding sleeve is provided with one root breaking mechanism, and the rear side of each sliding sleeve is fixedly connected with a shifting fork; the walking frame is arranged at the rear side below the rack, and walking wheels which are equal in number and correspond to the adjusting devices one by one are arranged on the walking frame; each travelling wheel is in sliding fit with a mounting shaft arranged on the travelling frame through a sliding seat, and each shifting fork can drive the corresponding travelling wheel to axially move along the mounting shaft;
the hydraulic system comprises a hydraulic station, the hydraulic station is provided with electromagnetic valves which are equal to the hydraulic cylinders in number and correspond to the hydraulic cylinders one by one, and the hydraulic station supplies oil and returns oil to the hydraulic cylinders through the electromagnetic valves; the electromagnetic valves are three-position four-way electromagnetic valves, and each electromagnetic valve is superposed with a throttle valve.
2. The wheat root-cutting layered fertilizer distributor convenient for row spacing adjustment according to claim 1, characterized in that both sides of the front end of the walking frame are respectively hinged with the frame, and both sides of the rear part thereof are respectively adjustably connected with the frame through adjusting screws.
3. The wheat root-cutting layered fertilizer distributor facilitating the row spacing adjustment of claim 1, wherein the mounting shaft is a square shaft, and both ends of the mounting shaft are rotatably matched with the walking frame; the sliding seat is movably sleeved outside the mounting shaft and fixedly connected with the corresponding walking wheel, and the walking wheel drives the square shaft to rotate in the working state.
4. A wheat root breaking layered fertilizer distributor facilitating row spacing adjustment according to claim 1, wherein the root breaking mechanism comprises a mounting seat, a furrowing blade and a root breaking cutter, the mounting seat is detachably and fixedly connected with the sliding sleeve, the upper end of the furrowing blade is vertically and movably matched with the mounting seat, and the root breaking cutter is arranged below the furrowing blade.
5. A wheat root breaking layered fertilizer distributor facilitating row spacing adjustment according to claim 4, wherein the root breaking knife is a trapezoidal metal plate with a narrow front part and a wide rear part, and is horizontally fixed at the bottom of the furrowing blade, and the middle rear parts of the root breaking knife extend out towards two sides relative to the furrowing blade.
6. A wheat root breaking layered fertilizer applicator convenient for row spacing adjustment according to claim 1, characterized in that the fertilizer applying mechanism comprises a fertilizer box and a fertilizer applicator, the fertilizer box is fixedly arranged at the front side above the frame, and the bottom of the fertilizer box is provided with fertilizer outlets with the same number as the root breaking devices; the fertilizer applicator is arranged below each fertilizer outlet, the bottom of the fertilizer applicator is connected with a fertilizer conveying pipe, and the fertilizer conveying pipes are respectively connected with the root breaking devices in a one-to-one correspondence manner.
7. The wheat root-cutting layered fertilizer distributor convenient for row spacing adjustment of claim 1, wherein the cross beam is a square shaft, and the sliding sleeve is a square sleeve matched with the square shaft.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311042.XA CN110122011B (en) | 2019-04-18 | 2019-04-18 | Wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910311042.XA CN110122011B (en) | 2019-04-18 | 2019-04-18 | Wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment |
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| Publication Number | Publication Date |
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| CN110122011A CN110122011A (en) | 2019-08-16 |
| CN110122011B true CN110122011B (en) | 2022-04-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910311042.XA Active CN110122011B (en) | 2019-04-18 | 2019-04-18 | Wheat root-cutting layered fertilizer applicator convenient for row spacing adjustment |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112868315A (en) * | 2020-01-10 | 2021-06-01 | 聂章银 | Modern agricultural soil covering mechanical vehicle and method |
| CN111165138A (en) * | 2020-01-14 | 2020-05-19 | 李姗姗 | Quantitative fertilization device for agricultural planting |
| CN112772202A (en) * | 2021-01-27 | 2021-05-11 | 包仁钦 | Growth control device for rice planting |
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| AT399080B (en) * | 1990-07-12 | 1995-03-27 | Grabl Otto | Appliance for preparing the ground for sowing in rows |
| US6321667B1 (en) * | 2000-06-09 | 2001-11-27 | Kenneth E. Shoup | Adjustable gauge wheel for a planter |
| US6435622B1 (en) * | 2000-12-06 | 2002-08-20 | Shimano Inc. | Bicycle hub with threaded spacer and detachable freewheel |
| CN101884320A (en) * | 2010-07-30 | 2010-11-17 | 周宝全 | Overhead pesticide spraying vehicle |
| CN104081933B (en) * | 2014-07-25 | 2016-02-24 | 中联重机股份有限公司 | The corn combine that a kind of line-spacing is adjustable and the ceding of Taiwan thereof |
| CN105276173A (en) * | 2015-11-27 | 2016-01-27 | 重庆清平机械有限责任公司 | Automatic selector fork |
| CN205681800U (en) * | 2016-05-30 | 2016-11-16 | 甘肃省农业科学院旱地农业研究所 | A kind of Semen Maydis covers film double-furrow sowing planting device entirely |
| CN206948879U (en) * | 2017-04-28 | 2018-02-02 | 青岛市枞森农业机械研究所 | A kind of wheat is completely cured layer by layer manuring device |
| US11490559B2 (en) * | 2017-07-21 | 2022-11-08 | Perma-Green Supreme, Inc. | Steering assistance systems, roll control systems, and vehicles having the same |
| CN108476769B (en) * | 2018-01-24 | 2022-03-25 | 青岛理工大学 | Traction type wheat root cutting machine |
| CN207869664U (en) * | 2018-02-06 | 2018-09-18 | 天津红雨鑫蔬菜种植专业合作社 | Interval adjustable corn planter |
| CN108174669A (en) * | 2018-03-12 | 2018-06-19 | 青岛农业大学 | Layer by layer manuring device |
| CN208557675U (en) * | 2018-06-19 | 2019-03-01 | 池州市华兴起重设备安装有限公司 | A kind of building decorative plates cutter device |
| CN109566146B (en) * | 2018-12-18 | 2020-12-04 | 嘉兴市大明实业有限公司 | Regulation formula wheat seedling root cutting equipment |
| CN109601073A (en) * | 2019-01-22 | 2019-04-12 | 青岛普兰泰克机械科技有限公司 | A kind of wheat plant seeder for crop field experiment |
| CN109601067B (en) * | 2019-02-01 | 2023-09-19 | 山东农业大学 | Orchard double-row ditching fertilizer distributor |
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2019
- 2019-04-18 CN CN201910311042.XA patent/CN110122011B/en active Active
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