CN111066462A - Antiwind rotary tillage stubble cleaner - Google Patents
Antiwind rotary tillage stubble cleaner Download PDFInfo
- Publication number
- CN111066462A CN111066462A CN201911291403.5A CN201911291403A CN111066462A CN 111066462 A CN111066462 A CN 111066462A CN 201911291403 A CN201911291403 A CN 201911291403A CN 111066462 A CN111066462 A CN 111066462A
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- fixedly connected
- rotating ring
- gear
- plate
- rod
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D34/00—Mowers; Mowing apparatus of harvesters
- A01D34/835—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes
- A01D34/8355—Mowers; Mowing apparatus of harvesters specially adapted for particular purposes for cutting up or crushing remaining standing stalks, e.g. stubble
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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
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/02—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel
- A01B33/021—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs with tools on horizontal shaft transverse to direction of travel with rigid tools
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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
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/082—Transmissions; Gearings; Power distribution
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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
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/10—Structural or functional features of the tools ; Theoretical aspects of the cutting action
- A01B33/103—Structural or functional features of the tools ; Theoretical aspects of the cutting action the rotating shaft being oriented horizontally
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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
- A01B33/00—Tilling implements with rotary driven tools, e.g. in combination with fertiliser distributors or seeders, with grubbing chains, with sloping axles, with driven discs
- A01B33/08—Tools; Details, e.g. adaptations of transmissions or gearings
- A01B33/12—Arrangement of the tools; Screening of the tools
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Power Engineering (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses an anti-winding rotary tillage stubble cleaner, which comprises a machine body and side plates, wherein the bottom of the machine body is fixedly connected with the tops of the side plates, and the bottoms of the side plates are fixedly connected with positioning cylinders. This antiwind rotary tillage stubble cleaner, first side lever and second side lever slow down under earth's effect, first gear produces relative movement with first rotating ring, second paper wheel and second rotating ring produce relative movement, first gear and second gear radius are different, it is different to make first rotating ring and second rotating ring rotate, first rotating ring drives first side lever and rotates, the second rotating ring drives the rotation of second side lever, realize first side lever, the effect that second side lever and plough sword slew velocity are different, stir the foreign matter between the adjacent sword of ploughing, a large amount of external impurity has been piled up easily between the adjacent sword of ploughing of common rotary cultivator solved, the winding is on ploughing the sword surface easily, the problem of ploughing the sword use is influenced.
Description
Technical Field
The invention relates to the technical field of rotary cultivators, in particular to an anti-winding rotary tillage stubble cleaner.
Background
The rotary cultivator is a cultivator which is matched with a tractor to complete the operations of ploughing and harrowing, has the characteristics of strong soil crushing capability, flat ground surface after ploughing and the like, is widely applied, can chop stubbles buried below the ground surface, is convenient for the operation of a seeder, provides a good seedbed for later sowing, is divided into three types of horizontal shaft type, vertical shaft type and inclined type according to the configuration mode of a rotary tillage cutter shaft, is correctly used and adjusted, is very important for keeping the good technical state and ensuring the farming quality, and has the effects of breaking the plough bottom layer, recovering the soil plough layer structure, improving the soil water storage and preservation capability, eliminating partial weeds, reducing plant diseases and insect pests, leveling the ground surface, improving the agricultural mechanized operation standard and the like.
The utility model discloses a rotary cultivator, including rotary cultivator, last, or the short distance transport.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides an anti-winding rotary tillage stubble cleaner, which solves the problems that a large amount of external impurities are easily accumulated between adjacent tillage blades of a common rotary cultivator, the external impurities are easily wound on the surfaces of the tillage blades, the use of the tillage blades is influenced, the common rotary cultivator does not have a moving function, and a large amount of manpower is consumed when the common rotary cultivator needs to be maintained or moves in a short distance.
In order to achieve the purpose, the invention is realized by the following technical scheme: an anti-winding rotary tillage stubble cleaner comprises a machine body and a side plate, wherein the bottom of the machine body is fixedly connected with the top of the side plate, the bottom of the side plate is fixedly connected with a positioning cylinder, the inner surface of the positioning cylinder is rotatably connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with a tillage cutter and a fixing plate, the side surface of the fixing plate is fixedly connected with a rotating cylinder, the inner surface of the rotating cylinder is rotatably connected with a rotating rod, the outer surface of the rotating rod is sequentially and fixedly connected with a first gear and a second gear from inside to outside, the outer surface of the first gear is sleeved with a first rotating ring, the inner surface of the first rotating ring is meshed with the outer surface of the first gear, the outer surface of the first rotating ring is fixedly connected with a first side rod, the outer surface of the second gear is sleeved with a second rotating ring, and the inner surface of the second rotating, and the outer surface of the second rotating ring is fixedly connected with a second side rod.
Further, the side fixedly connected with fixed block of curb plate, the draw-in groove has been seted up to the surface of fixed block, first support column has been run through at the top of fixed block, the driving wheel is moved to the bottom fixedly connected with side of first support column, the side of first support column is from last to lower fixedly connected with C type pole and fixture block in proper order.
Furthermore, a moving groove is formed in the side face of the machine body, a U-shaped rod is connected to the inner surface of the moving groove in a sliding mode, the outer surface of the U-shaped rod is in compression joint with the outer surface of the C-shaped rod, and a first spring fixedly connected with one end of the U-shaped rod is fixedly connected to the inner cavity of the moving groove.
Further, the bottom of the machine body is fixedly connected with a rear plate fixedly connected with the outer surface of the side plate, a limiting rod penetrates through the side face of the rear plate, and one end of the limiting rod is fixedly connected with a second spring fixedly connected with the outer surface of the rear plate.
Further, the side fixedly connected with limiting plate of back plate, the surface sliding connection of limiting plate has the second support column, and the bottom fixedly connected with back of second support column moves the driving wheel.
Furthermore, a limiting groove is formed in the side face of the limiting plate, and a limiting block in sliding connection with the inner surface of the limiting groove is fixedly connected to the outer surface of the second supporting column.
The invention provides an anti-winding rotary tillage stubble cleaner. Compared with the prior art, the method has the following beneficial effects:
1. the anti-winding rotary tillage stubble cleaner has the advantages that the positioning cylinder is fixedly connected to the bottom of the side plate, the rotating shaft is rotatably connected to the inner surface of the positioning cylinder, the tillage cutter and the fixed plate are fixedly connected to the outer surface of the rotating shaft, the rotating cylinder is fixedly connected to the side surface of the fixed plate, the rotating rod is rotatably connected to the inner surface of the rotating cylinder, the first gear and the second gear are fixedly connected to the outer surface of the rotating rod from inside to outside in sequence, the first rotating ring is sleeved on the outer surface of the first gear, the inner surface of the first rotating ring is meshed with the outer surface of the first gear, the first side rod is fixedly connected to the outer surface of the first rotating ring, the second rotating ring is sleeved on the outer surface of the second gear, the inner surface of the second rotating ring is meshed with the outer surface of the second gear, the second side rod is fixedly connected to the outer surface of the second rotating ring, during work, external soil, first side lever and second side lever slow down under earth's effect, first gear produces relative movement with first rotating ring, second paper wheel and second rotating ring produce relative movement, first gear and second gear radius are different, it is different to make first rotating ring and second rotating ring rotate, first rotating ring drives first side lever and rotates, the second rotating ring drives the rotation of second side lever, realize first side lever, the effect that second side lever and plough sword rotational speed are different, stir the foreign matter between the adjacent sword of ploughing, a large amount of external impurity has been piled up easily between the adjacent sword of ploughing of common rotary cultivator to solved, twine easily on ploughing the sword surface, influence the problem of ploughing the sword and using.
2. The anti-winding rotary tillage stubble cleaner is characterized in that a fixed block is fixedly connected to the side surface of a side plate, the outer surface of the fixed block is provided with a clamping groove, a first supporting column penetrates through the top of the fixed block, the bottom end of the first supporting column is fixedly connected with a side shifting wheel, the side surface of the first supporting column is fixedly connected with a C-shaped rod and a clamping block from top to bottom in sequence, the side surface of a machine body is provided with a shifting groove, the inner surface of the shifting groove is connected with a U-shaped rod in a sliding mode, the outer surface of the U-shaped rod is in compression joint with the outer surface of the C-shaped rod, the inner cavity of the shifting groove is fixedly connected with a first spring fixedly connected with one end of the U-shaped rod, the bottom of the machine body is fixedly connected with a rear plate fixedly connected with the outer surface of the side plate, the side surface of the rear plate penetrates through a limiting rod, one end of the, and the bottom fixedly connected with of second support column moves the driving wheel backward, the removal of the driving wheel position is moved to the sideshift of being convenient for in coordination of fixed block and first support column, when the driving wheel is not used to the sideshift, U type pole, the offside of first spring and C type pole is in coordination removed the position of wheel and is fixed, when moving the driving wheel and using to sideshift, the position of moving the wheel through fixture block and draw-in groove offside is fixed, through the limiting plate, the cooperation of spacing groove and stopper, be convenient for the regulation of second support column and backshift driving wheel position, when the rear shift driving wheel uses, through the cooperation of second spring and gag lever post, fix the position of rear shift driving wheel, the problem that common rotary cultivator itself does not possess the removal function has been solved, when needs maintenance or short distance to remove.
Drawings
FIG. 1 is a schematic external view of the present invention;
FIG. 2 is a schematic view of the structural connection of the first gear, the second gear and the rotating rod according to the present invention;
FIG. 3 is a schematic view of the structural connection between the rear moving wheel and the second support post according to the present invention.
In the figure: 1. a body; 2. a side plate; 3. a positioning cylinder; 4. a rotating shaft; 5. ploughing; 6. a fixing plate; 7. a rotating cylinder; 8. rotating the rod; 9. a first gear; 10. a second gear; 11. a first rotating ring; 12. a first side bar; 13. a second rotating ring; 14. a second side bar; 15. a fixed block; 16. a card slot; 17. a first support column; 18. a lateral moving wheel; 19. a C-shaped rod; 20. a clamping block; 21. a moving groove; 22. a U-shaped rod; 23. a first spring; 24. a back plate; 25. a limiting rod; 26. a second spring; 27. a limiting plate; 28. a second support column; 29. moving the wheel backwards; 30. a limiting groove; 31. and a limiting block.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
As shown in fig. 1-3, the present invention provides a technical solution: an anti-winding rotary tillage stubble cleaner comprises a machine body 1 and side plates 2, wherein a transmission device is arranged inside the machine body 1 and is in transmission connection with an external power device, the bottom of the machine body 1 is fixedly connected with the top of the side plates 2, the two side plates 2 are respectively positioned at two sides below the machine body 1, the bottom of each side plate 2 is fixedly connected with a positioning cylinder 3, the inner surface of each positioning cylinder 3 is rotatably connected with a rotating shaft 4, the rotating shaft 4 is in transmission connection with the internal transmission device, the outer surface of each rotating shaft 4 is fixedly connected with a plurality of tilling knives 5 and fixing plates 6, two fixing plates 6 are arranged between every two adjacent tilling knives 5, the side surfaces of the fixing plates 6 are fixedly connected with rotating cylinders 7, the inner surface of each rotating cylinder 7 is rotatably connected with a rotating rod 8, the outer surface of each rotating rod 8 is fixedly connected with a first gear 9 and a second gear 10 in sequence from, two second gears 10 are arranged between two adjacent tilling knives 5, two second gears 19 are respectively positioned at two sides of a first gear 9, a first rotating ring 11 is sleeved on the outer surface of the first gear 9, the inner surface of the first rotating ring 11 is meshed with the outer surface of the first gear 9, a first side rod 12 is fixedly connected to the outer surface of the first rotating ring 11, a second rotating ring 13 is sleeved on the outer surface of the second gear 10, the inner surface of the second rotating ring 13 is meshed with the outer surface of the second gear 10, a second side rod 14 is fixedly connected to the outer surface of the second rotating ring 13, a fixed block 15 is fixedly connected to the side surface of the side plate 2, a clamping groove 16 is formed in the outer surface of the fixed block 15, a first supporting column 17 penetrates through the top of the fixed block 15, a side shifting wheel 18 is fixedly connected to the bottom end of the first supporting column 17, a C-shaped rod 19 and a clamping block 20 are fixedly connected to the side surface of the first supporting column, the clamping groove 16 is composed of a communication groove and side grooves, the communication groove is convenient for the movement of the first supporting column 17 and the clamping block 20, the side grooves can fix the position of the clamping block 20, the side surface of the machine body 1 is provided with a moving groove 21, the number of the moving grooves 21 is four, two sides of the machine body 1 are respectively provided with two, the inner surface of the moving groove 21 is connected with a U-shaped rod 22 in a sliding manner, the outer surface of the U-shaped rod 22 is in compression joint with the outer surface of a C-shaped rod 19, the inner cavity of the moving groove 21 is fixedly connected with a first spring 23 fixedly connected with one end of the U-shaped rod 22, the bottom of the machine body 1 is fixedly connected with a rear plate 24 fixedly connected with the outer surface of the side plate 2, the side surface of the rear plate 24 is penetrated with a limiting rod 25, one end of the limiting rod 25 is fixedly connected with a second spring 26 fixedly connected with the outer surface of the rear plate 24, the side surface, and the bottom end of the second supporting column 28 is fixedly connected with a rear moving wheel 29, the side surface of the limit plate 27 is provided with a limit groove 30, and the outer surface of the second supporting column 28 is fixedly connected with a limit block 31 which is in sliding connection with the inner surface of the limit groove 30.
And those not described in detail in this specification are well within the skill of those in the art.
When the cultivator is used, the rotating shaft 4 is driven to rotate through the internal transmission device, the rotating shaft 4 drives the fixed plate 6 and the cultivating knife 5 to rotate to cultivate the ground, the fixed plate 6 drives the first side rod 12 and the second side rod 14 to rotate through the rotating cylinder 7 and the rotating rod 8, outside soil enters the cultivating knife 5 to generate interaction force on the first side rod 12 and the second side rod 14, the first side rod 12 and the second side rod 14 decelerate under the action of the soil, the first gear 9 and the first rotating ring 11 generate relative movement, the second paper wheel 10 and the second rotating ring 13 generate relative movement, the first gear 9 and the second gear 10 have different radiuses, the first rotating ring 11 and the second rotating ring 13 rotate differently, the first rotating ring 11 drives the first side rod 12 to rotate, the second rotating ring 13 drives the second side rod 14 to rotate, the effect that the first side rod 12, the second side rod 14 and the cultivating knife 5 have different rotating speeds is realized, when the cultivator needs to move, the machine body 1 is lifted, the second spring 26 is stretched, the second spring 26 drives the limiting rod 25 to move towards the direction far away from the limiting plate 27, the rear moving wheel 29 moves downwards under the action of gravity, when the limiting block 31 is positioned below the limiting rod 25, the second spring 26 is loosened, the second spring 26 drives the limiting rod 25 to move towards the direction close to the limiting plate 27, the limiting rod 25 is pressed above the limiting block 31, the U-shaped rod 23 is drawn out, the first spring 22 is stretched, the first supporting column 17 moves downwards, when the first supporting column 17 is separated from the U-shaped rod 23, the U-shaped rod 23 is loosened, the U-shaped rod 23 moves towards the direction close to the machine body 1 under the action of the first spring 22, the first supporting column 17 drives the clamping block 20 and the side moving wheel 29 to move downwards, when the clamping block 20 enters the clamping groove 16, the first supporting column 17 is rotated, the clamping block 20 enters the side groove of the clamping groove 16, the machine body 1 is put down, the rear moving wheel 29 and the two side moving wheels 18 are contacted with the, the body 1 is moved.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It should be understood by those skilled in the art that the foregoing embodiments are merely illustrative of the technical spirit and features of the present invention, and the present invention is not limited thereto but may be implemented by those skilled in the art.
Claims (6)
1. The utility model provides an antiwind rotary tillage stubble cleaner, includes organism (1) and curb plate (2), the top fixed connection of the bottom of organism (1) and curb plate (2), its characterized in that: the bottom of the side plate (2) is fixedly connected with a positioning cylinder (3), the inner surface of the positioning cylinder (3) is rotatably connected with a rotating shaft (4), the outer surface of the rotating shaft (4) is fixedly connected with a tilling knife (5) and a fixing plate (6), the side surface of the fixing plate (6) is fixedly connected with a rotating cylinder (7), the inner surface of the rotating cylinder (7) is rotatably connected with a rotating rod (8), the outer surface of the rotating rod (8) is sequentially and fixedly connected with a first gear (9) and a second gear (10) from inside to outside, the outer surface of the first gear (9) is sleeved with a first rotating ring (11), the inner surface of the first rotating ring (11) is meshed with the outer surface of the first gear (9), the outer surface of the first rotating ring (11) is fixedly connected with a first side rod (12), the outer surface of the second gear (10) is sleeved with a second rotating ring (13), and the inner surface of the second rotating ring (13) is meshed with the outer surface of the second gear (10), and the outer surface of the second rotating ring (13) is fixedly connected with a second side rod (14).
2. The anti-winding rotary tillage stubble cleaner as recited in claim 1, wherein: side fixedly connected with fixed block (15) of curb plate (2), draw-in groove (16) have been seted up to the surface of fixed block (15), the top of fixed block (15) is run through and is had first support column (17), the bottom fixedly connected with side of first support column (17) moves driving wheel (18), the side of first support column (17) is from last to lower fixedly connected with C type pole (19) and fixture block (20) in proper order.
3. The anti-winding rotary tillage stubble cleaner as recited in claim 1, wherein: the side of the machine body (1) is provided with a moving groove (21), the inner surface of the moving groove (21) is connected with a U-shaped rod (22) in a sliding mode, the outer surface of the U-shaped rod (22) is in compression joint with the outer surface of a C-shaped rod (19), and the inner cavity of the moving groove (21) is fixedly connected with a first spring (23) fixedly connected with one end of the U-shaped rod (22).
4. The anti-winding rotary tillage stubble cleaner as recited in claim 1, wherein: the bottom of the machine body (1) is fixedly connected with a rear plate (24) fixedly connected with the outer surface of the side plate (2), a limiting rod (25) penetrates through the side surface of the rear plate (24), and one end of the limiting rod (25) is fixedly connected with a second spring (26) fixedly connected with the outer surface of the rear plate (24).
5. The anti-winding rotary tillage stubble cleaner as recited in claim 4, wherein: the side fixedly connected with limiting plate (27) of back plate (24), the surface sliding connection of limiting plate (27) has second support column (28), and moves driving wheel (29) behind the bottom fixedly connected with of second support column (28).
6. The anti-winding rotary tillage stubble cleaner as recited in claim 5, wherein: a limiting groove (30) is formed in the side face of the limiting plate (27), and a limiting block (31) which is in sliding connection with the inner surface of the limiting groove (30) is fixedly connected to the outer surface of the second supporting column (28).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291403.5A CN111066462B (en) | 2019-12-16 | 2019-12-16 | Antiwind rotary tillage stubble cleaner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911291403.5A CN111066462B (en) | 2019-12-16 | 2019-12-16 | Antiwind rotary tillage stubble cleaner |
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| Publication Number | Publication Date |
|---|---|
| CN111066462A true CN111066462A (en) | 2020-04-28 |
| CN111066462B CN111066462B (en) | 2021-08-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201911291403.5A Active CN111066462B (en) | 2019-12-16 | 2019-12-16 | Antiwind rotary tillage stubble cleaner |
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| Country | Link |
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| CN (1) | CN111066462B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114642091A (en) * | 2022-04-08 | 2022-06-21 | 安徽春风农林机械制造有限公司 | Rice field rotary tillage mechanism for four-wheel drive mini-tiller |
| CN117136650A (en) * | 2023-10-30 | 2023-12-01 | 安徽省农业科学院土壤肥料研究所 | Anti-winding deep-ploughing and soil-preparation integrated device for hair-leaf vetch |
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| CN108236971A (en) * | 2018-01-21 | 2018-07-03 | 苏州市凯利勋实验室设备有限公司 | A kind of intelligent fire-proofing cabinet of the adjustable inflammable experiment material of storage |
| CN208005994U (en) * | 2018-02-07 | 2018-10-26 | 江苏利奥新材料科技有限公司 | A kind of silicon chip cutter easy to remove and fixed |
| CN209185397U (en) * | 2018-12-03 | 2019-08-02 | 开县国成养殖场 | A kind of aquaculture hatchery easy to use |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114642091A (en) * | 2022-04-08 | 2022-06-21 | 安徽春风农林机械制造有限公司 | Rice field rotary tillage mechanism for four-wheel drive mini-tiller |
| CN114642091B (en) * | 2022-04-08 | 2023-01-31 | 安徽春风农林机械制造股份有限公司 | Rice field rotary tillage mechanism for four-wheel drive mini-tiller |
| CN117136650A (en) * | 2023-10-30 | 2023-12-01 | 安徽省农业科学院土壤肥料研究所 | Anti-winding deep-ploughing and soil-preparation integrated device for hair-leaf vetch |
| CN117136650B (en) * | 2023-10-30 | 2024-01-23 | 安徽省农业科学院土壤肥料研究所 | Anti-winding deep-ploughing and soil-preparation integrated device for hair-leaf vetch |
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|---|---|
| CN111066462B (en) | 2021-08-24 |
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