CN111279816A - Rotary tillage stubble burying device for wheat seeder suitable for wet and rotten fields - Google Patents
Rotary tillage stubble burying device for wheat seeder suitable for wet and rotten fields Download PDFInfo
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- CN111279816A CN111279816A CN202010284866.5A CN202010284866A CN111279816A CN 111279816 A CN111279816 A CN 111279816A CN 202010284866 A CN202010284866 A CN 202010284866A CN 111279816 A CN111279816 A CN 111279816A
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- rotary tillage
- connecting rod
- wheat seeder
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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
- A01B33/087—Lifting devices; Depth regulation devices; Mountings
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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
- A01B49/00—Combined machines
- A01B49/04—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools
- A01B49/06—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising
- A01B49/065—Combinations of soil-working tools with non-soil-working tools, e.g. planting tools for sowing or fertilising the soil-working tools being actively driven
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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
- A01B59/00—Devices specially adapted for connection between animals or tractors and agricultural machines or implements
- A01B59/002—Details, component parts
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Soil Sciences (AREA)
- Environmental Sciences (AREA)
- Zoology (AREA)
- Soil Working Implements (AREA)
Abstract
The invention discloses a rotary tillage stubble burying device for a wheat seeder suitable for wet and muddy fields, which comprises a rotary tillage part, a connecting part, a height adjusting mechanism and a central controller, wherein the wheat seeder is provided with an installation part matched with the connecting part, the rotary tillage part comprises a rotating shaft, a plurality of rotating blades and a first motor for driving the rotating shaft to rotate, the connecting part comprises first connecting rods arranged at two ends of the rotating shaft, the installation part comprises a rotating wheel, a second motor for controlling the rotating angle of the rotating wheel and an extension rod integrally connected with the rotating wheel, the lower end of the first connecting rod is connected with the rotating shaft, the upper end of the first connecting rod is detachably connected with the extension rod, the height adjusting mechanism comprises a floating block hinged with the tail end of the extension rod through the second connecting rod, the rotating wheel is provided with a first angle sensor, and the hinged part of the second connecting rod and, the rotary tillage depth adjusting device realizes accurate adjustment of rotary tillage depth, and is suitable for farmlands with different wet and rotten degrees.
Description
Technical Field
The invention belongs to the technical field of agricultural machinery, and particularly relates to a rotary tillage stubble burying device for a wheat seeder suitable for wet and rotten fields.
Background
With the rapid development of modern agricultural mechanization, the agricultural machinery greatly reduces the labor intensity of farmers and is more and more popular with the farmers.
At present, the rotary tillage stubble burying device suitable for wet and rotten fields mainly has the following problems: 1. the structure is complex, the whole structure is large in size, and the cleaning can not be carried out by disassembling; 2. the rotary tillage depth can not be adjusted, and the rotary tillage depth can not adapt to fields with different wet and rotten degrees.
Disclosure of Invention
The invention aims to: the utility model provides a wheat is rotary tillage buries stubble device for seeder suitable for wet mashed field, simple structure, the rotary tillage buries the stubble device and can dismantle, and the rotary tillage degree of depth can accurate automatically regulated, satisfies the rotary tillage needs in different wet mashed degree fields to at whole rotary tillage in-process, the rotary tillage degree of depth is even.
In order to achieve the purpose, the technical scheme of the invention is as follows: the utility model provides a wheat seeder is with rotary tillage stubble device of burying which is suitable for wet mashed field, a serial communication port, the rotary tillage stubble device of burying includes rotary tillage portion, connecting portion, height adjusting mechanism, central controller, be equipped with on the wheat seeder with the installation department that connecting portion match, rotary tillage portion includes rotation axis, a plurality of is in rotatory blade, the drive that rotation axis axial direction equidistance set up the rotatory first motor of rotation axis, connecting portion are including setting up the first connecting rod at rotation axis both ends, the installation department include swiveling wheel, control swiveling wheel's second motor, with swiveling wheel body coupling and along the radial extension bar that extends of swiveling wheel, first connecting rod lower extreme is connected the rotation axis, first connecting rod upper end with the connection can be dismantled to the extension bar, height adjusting mechanism include through the second connecting rod with the terminal articulated slider of extension bar, the floating block is arranged at the front end of the advancing direction of the wheat seeder and is positioned in front of the rotary tillage part, the lower surface of the floating block is always contacted with the soil surface of the wet and rotten field in the advancing process of the wheat seeder, the second connecting rod is provided with a plurality of equidistant hinge holes, the rotating wheel is provided with a first angle sensor, a second angle sensor is arranged at the hinged position of the second connecting rod and the extension rod, the central controller is in signal connection with the first angle sensor, the second angle sensor, the first motor and the second motor, the rotation angle value measured by the second angle sensor is sent to the central controller, the central controller controls the start and stop of the second motor according to the received rotation angle value measured by the second angle sensor, thereby adjusting the tilling depth of the rotary blade, the central controller controlling the rotation speed of the first motor.
Preferably, the detachable connection mode of the upper end of the first connecting rod and the extension rod is any one of bolt connection and thread connection, and when the connection mode is bolt, the connection holes in the first connecting rod and the extension rod are through holes; when the connection mode is a screw thread, the connection holes on the first connecting rod and the extension rod are threaded holes.
Preferably, the first connecting rod is a bent rod with a radian, and protrudes outwards in the direction away from the wheat seeder.
Preferably, the rotary blade is a serrated blade.
Preferably, the hinge point of the second connecting rod and the extension rod is a point A, the center of the slider is a point B, and L is a point L2For the linear distance of A point to B point, second angle sensor is used for measuring second connecting rod and extends out between the pole opening direction and is close to seeder direction of advance's contained angle α, first angle sensor is used for measuring extend out the pole with contained angle β between the swiveling wheel center pin place horizontal plane, the swiveling wheel center is C point, and C point is L point to the distance of A point1The center of the rotating shaft is a point D, and the distance from the point C to the point D is L3And an included angle between a line segment between the point C and the point D and the extension rod is gamma.
Preferably, the angle β is measured by attaching a horizontal bar to the planter coincident with the horizontal plane of the central axis of the rotating wheel, the horizontal bar extending into the vertical plane of the extension bar, and the first angle sensor measuring the angle between the horizontal bar and the extension bar within the vertical plane of the extension bar.
Preferably, the distance between the point B and the horizontal plane of the central axis of the rotating wheel is H, the distance between the point D and the horizontal plane of the central axis of the rotating wheel is H,
h＝L1·sinβ-L2·sin(α-β)
H＝L3·sin(γ-β)。
the invention has the beneficial effects that:
1. the rotary tillage stubble burying device is simple in structure, is simply detachably connected with the seeding machine in a bolt or thread mode, is convenient to detach and clean, and can be detached and installed on other seeding machines.
2. Set up the slider through the place ahead at the rotary tillage stubble-burying device direction of advance for the slider is in advance of the rotary tillage stubble-burying device and is contacted the uneven soil surface of height, and quantify the change of height through angle sensor, calculate the change value that reachs the slider height, thereby obtain the required height change value of adjusting of rotary tillage stubble-burying device, turn into the required rotatory angle value of swiveling wheel with the required height change value of adjusting of rotary tillage stubble-burying device again, realized only needing controlling opening of second motor to stop can realize the accurate regulation of rotary tillage stubble-burying device rotary tillage degree of depth.
3. The rotary blade for rotary tillage is a sawtooth blade, so that the contact area of the rotary blade to soil is increased, and sufficient loosening of the soil is facilitated.
Drawings
FIG. 1 is a schematic structural view of the rotary tillage stubble-burying device of the invention.
FIG. 2 is a signal control block diagram of the rotary tillage stubble burying device of the invention.
FIG. 3 is a schematic view of the rotary tillage stubble-burying device of the present invention.
FIG. 4 is a schematic diagram of the rotary tillage stubble-burying device of the present invention.
Detailed Description
The present invention will be described in further detail below with reference to specific embodiments and drawings of the specification, but the embodiments of the present invention are not limited thereto.
The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.
Referring to fig. 1 and 2, the present invention provides a rotary tillage stubble burying device for a wheat seeder suitable for wet and rot fields, the rotary tillage stubble burying device comprises a rotary tillage part, a connecting part, a height adjusting mechanism and a central controller, wherein the wheat seeder is provided with a mounting part matched with the connecting part, the rotary tillage part comprises a rotating shaft 10, a plurality of rotary blades 9 arranged at equal intervals in the axial direction of the rotating shaft 10 and a first motor driving the rotating shaft 10 to rotate, the connecting part comprises first connecting rods 5 arranged at two ends of the rotating shaft 10, the mounting part comprises a rotating wheel 1, a second motor controlling the rotating angle of the rotating wheel 1 and an extension rod 3 integrally connected with the rotating wheel 1 and extending along the radial direction of the rotating wheel, the lower end of the first connecting rod 5 is connected with the rotating shaft 10, and the upper end of the first connecting rod 5 is detachably connected with the extension rod 3, the height adjusting mechanism comprises a floating block 8 which is hinged with the tail end of the extension rod 3 through a second connecting rod 7, the floating block 8 is arranged at the front end of the advancing direction of the wheat seeder and is positioned in front of the rotary tillage part, the lower surface of the floating block 8 is always in contact with the soil surface of a wet and rotten field in the advancing process of the wheat seeder, a plurality of equidistant hinge holes 6 are formed in the second connecting rod 7, a first angle sensor 2 is arranged on the rotating wheel 1, a second angle sensor 4 is arranged at the hinge position of the second connecting rod 7 and the extension rod 3, the central controller is in signal connection with the first angle sensor 2, the second angle sensor 4, the first motor and the second motor, the rotating angle value measured by the second angle sensor 4 is sent to the central controller, and the central controller controls the second motor to be started or stopped according to the rotating angle value measured by the received second angle sensor 4, thereby adjusting the tilling depth of the rotary blade 9, the central controller controlling the rotation speed of the first motor.
The detachable connection mode of the upper end of the first connecting rod 5 and the extension rod 3 is any one of bolt connection and thread connection, and when the connection mode is a bolt, the connection holes in the first connecting rod 5 and the extension rod 3 are through holes; when the connection mode is a screw thread, the connection holes on the first connecting rod 5 and the extension rod 3 are threaded holes.
The first connecting rod 5 is a bent rod with radian, and protrudes outwards in the direction far away from the wheat seeder.
The rotary blade 9 is a serrated blade.
The hinged point of the second connecting rod 7 and the extension rod 3 is a point A, the center of the floating block 8 is a point B, and the L is2For A point to the linear distance of B point, second angle sensor 4 is used for measuring second connecting rod 7 and the contained angle α that the opening direction is close to seeder advancing direction between the extension bar 3, first angle sensor is used for measuring the extension bar with contained angle β between the swiveling wheel center pin place horizontal plane, swiveling wheel 1 center is the C point, and the distance that C point to A point is L point1The center of the rotating shaft 10 is a point D, and the distance from the point C to the point D is L3The included angle between the line segment between the point C and the point D and the extension rod 3 is gamma which is a fixed value and can be directly obtained by measuring through a protractor.
The method for measuring the angle β is that a horizontal rod which is coincident with the horizontal plane of the central shaft of the rotating wheel is connected to the seeding machine, the horizontal rod extends into the vertical plane of the extension rod, and the first angle sensor measures the included angle between the horizontal rod which is positioned in the vertical plane of the extension rod and the extension rod.
The distance between the point B and the horizontal plane of the central axis of the rotating wheel is H, the distance between the point D and the horizontal plane of the central axis of the rotating wheel 1 is H,
h＝L1·sinβ-L2·sin(α-β)
H＝L3·sin(γ-β)。
referring to fig. 3 and 4, the working principle of the invention is that the floating block 8 is arranged at the front end of the advancing direction of the wheat seeder and is positioned in front of the rotary tillage part, the lower surface of the floating block 8 is always contacted with the soil surface of the wet and rotten field in the advancing process of the wheat seeder, the floating block 8 always knows the flatness of the soil to be ploughed in advance before the rotary tillage device, the height change of the floating block 8 directly causes the rotation angle change of the second connecting rod 7 around the hinge joint of the second connecting rod 7 and the extension rod 3, the rotation angle change enables the included angle α between the second connecting rod 7 and the extension rod 3 to change, the included angle α is measured by the second angle sensor 4, and the initial angle between the second connecting rod 7 and the extension rod 3 is α1The distance between the point B and the horizontal plane where the central axis of the rotating wheel 1 is positioned is h, α1The corresponding h value in the state is h1The hinged point of the second connecting rod 7 and the extension rod 3 is a point A, the center of the rotating wheel is a point C, and the distance from the point C to the point A is L1The center of the floating block 8 is a point B, L2The linear distance from the point A to the point B is shown, the center of the rotating shaft 10 is the point D, and the distance from the point C to the point D is L3，L1，L2，L3Value accessible scale direct measurement obtain, first angle sensor 2 is used for measuring the extension bar with contained angle β between the swiveling wheel center pin place horizontal plane is connected a horizon bar with swiveling wheel center pin place horizontal plane coincidence on the seeder, the horizon bar extends to in the extension bar vertical plane, first angle sensor measurement is located horizon bar in the extension bar vertical plane with contained angle between the extension bar, this contained angle is β's initial angle for β1And the distance between the point D and the horizontal plane where the central axis of the rotating wheel is positioned is H, β1The corresponding H value is H1The angle α of the slider changes during operation to α2The corresponding included angle β needs to be adjusted to β2In value, since the slider floats up and down following the height change of the soil surface, the rotary blade 9 on the bottom surface of the soil surface also needs to adjust the height according to the height change of the soil surface, so that the floating block floatsThe vertical height of the center of the movable block 8 and the center of the rotating shaft 10 is kept constant, namely h1-H1＝h2-H2，
According to the formula h ═ L1·sinβ-L2·sin(α-β)，H＝L3Sin (. gamma. - β), i.e.
L1·sinβ1-L2·sin(α1-β1)-L3·sin(γ-β1)＝L1·sinβ2-L2·sin(α2-β2)-L3·sin(γ-β2) An equation, an unknown β2The unique solution can be obtained to obtain β2Controlling the second motor to start and stop so as to rotate the rotary wheel by an angle equal to β measured by the first angle sensor2Thereby realizing the accuracy of the rotary tillage depth.
It is to be noted that the foregoing is only illustrative of the preferred embodiments of the present invention and the technical principles employed. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail by the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the spirit of the present invention, and the scope of the present invention is determined by the scope of the appended claims.
Claims (7)
1. The utility model provides a wheat seeder is with rotary tillage stubble device of burying which is suitable for wet mashed field, a serial communication port, the rotary tillage stubble device of burying includes rotary tillage portion, connecting portion, height adjusting mechanism, central controller, be equipped with on the wheat seeder with the installation department that connecting portion match, rotary tillage portion includes rotation axis, a plurality of is in rotatory blade, the drive that rotation axis axial direction equidistance set up the rotatory first motor of rotation axis, connecting portion are including setting up the first connecting rod at rotation axis both ends, the installation department include swiveling wheel, control swiveling wheel's second motor, with swiveling wheel body coupling and along the radial extension bar that extends of swiveling wheel, first connecting rod lower extreme is connected the rotation axis, first connecting rod upper end with the connection can be dismantled to the extension bar, height adjusting mechanism include through the second connecting rod with the terminal articulated slider of extension bar, the floating block is arranged at the front end of the advancing direction of the wheat seeder and is positioned in front of the rotary tillage part, the lower surface of the floating block is always contacted with the soil surface of the wet and rotten field in the advancing process of the wheat seeder, the second connecting rod is provided with a plurality of equidistant hinge holes, the rotating wheel is provided with a first angle sensor, a second angle sensor is arranged at the hinged position of the second connecting rod and the extension rod, the central controller is in signal connection with the first angle sensor, the second angle sensor, the first motor and the second motor, the rotation angle value measured by the second angle sensor is sent to the central controller, the central controller controls the start and stop of the second motor according to the received rotation angle value measured by the second angle sensor, thereby adjusting the tilling depth of the rotary blade, the central controller controlling the rotation speed of the first motor.
2. A rotary tillage stubble burying device for a wheat seeder suitable for wet and rot fields as claimed in claim 1, wherein the upper end of the first connecting rod is detachably connected with the extension rod in any one of a bolt connection manner and a screw connection manner, and when the connection manner is a bolt, the connecting holes in the first connecting rod and the extension rod are through holes; when the connection mode is a screw thread, the connection holes on the first connecting rod and the extension rod are threaded holes.
3. The rotary tillage stubble burying device for a wheat seeder suitable for wet rot fields as claimed in claim 1, wherein the first connecting rod is a curved rod having a curvature, and protrudes outward in a direction away from the wheat seeder.
4. The rotary tillage stubble burying device for a wheat seeder suitable for wet rot fields as claimed in claim 1, wherein the rotary blade is a serrated blade.
5. The rotary tillage stubble burying device for the wheat seeder applicable to wet rot fields as claimed in claim 1, wherein the hinge point of the second connecting rod and the extension rod is point A, the center of the floating block is point B, and L is point L2For the linear distance of A point to B point, second angle sensor is used for measuring second connecting rod and extends out between the pole opening direction and is close to seeder direction of advance's contained angle α, first angle sensor is used for measuring extend out the pole with contained angle β between the swiveling wheel center pin place horizontal plane, the swiveling wheel center is C point, and C point is L point to the distance of A point1The center of the rotating shaft is a point D, and the distance from the point C to the point D is L3And an included angle between a line segment between the point C and the point D and the extension rod is gamma.
6. A rotary tillage stubble burying device for a wheat seeder suitable for wet rot fields as claimed in claim 5, wherein the angle β is measured by attaching a horizontal bar to the seeder coinciding with a horizontal plane on which the central axis of the rotating wheel is located, the horizontal bar extending into the vertical plane of the protruding bar, and the first angle sensor measuring an angle between the horizontal bar located in the vertical plane of the protruding bar and the protruding bar.
7. A rotary tillage stubble burying device for a wheat seeder suitable for wet rot fields as claimed in claim 5, wherein a distance from point B to a horizontal plane on which a central axis of the rotating wheel is located is H, a distance from point D to a horizontal plane on which a central axis of the rotating wheel is located is H,
h＝L1·sinβ-L2·sin(α-β)
H＝L3·sin(γ-β)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284866.5A CN111279816B (en) | 2020-04-13 | 2020-04-13 | Rotary tillage stubble burying device for wheat seeder suitable for wet and rotten fields |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010284866.5A CN111279816B (en) | 2020-04-13 | 2020-04-13 | Rotary tillage stubble burying device for wheat seeder suitable for wet and rotten fields |
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| CN111279816A true CN111279816A (en) | 2020-06-16 |
| CN111279816B CN111279816B (en) | 2022-04-22 |
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Citations (9)
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|---|---|---|---|---|
| EP0333150A2 (en) * | 1988-03-18 | 1989-09-20 | Friedhelm Dutzi | Tillage equipment with telescopic security flap |
| DE202007006919U1 (en) * | 2007-05-14 | 2008-09-25 | Alois Pöttinger Maschinenfabrik Gmbh | Tillage machine |
| CN103109600A (en) * | 2011-11-16 | 2013-05-22 | 泰州樱田农机制造有限公司 | Paddy field stubble burying cultivator |
| CN103168519A (en) * | 2013-04-10 | 2013-06-26 | 中国农业大学 | Hoe entering depth and entering angle continuous adjusting mechanism |
| CN105874954A (en) * | 2016-04-22 | 2016-08-24 | 扬州大学 | Mechanized farming process |
| CN206223136U (en) * | 2016-11-29 | 2017-06-06 | 重庆丰兴源生态农业发展有限公司 | Agricultural machinery depth of soil preparation measurement apparatus |
| CN208113353U (en) * | 2018-03-07 | 2018-11-20 | 河北农业大学 | Seed row straw treatment and soil loosening device of no-tillage corn seeder |
| CN109348759A (en) * | 2018-12-21 | 2019-02-19 | 农业部南京农业机械化研究所 | A kind of reversion stubble-cleaning compound rotary tiller |
| CN109964556A (en) * | 2019-04-11 | 2019-07-05 | 湖南龙舟农机股份有限公司 | A kind of rotary tillage machine control system and method |
-
2020
- 2020-04-13 CN CN202010284866.5A patent/CN111279816B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0333150A2 (en) * | 1988-03-18 | 1989-09-20 | Friedhelm Dutzi | Tillage equipment with telescopic security flap |
| DE202007006919U1 (en) * | 2007-05-14 | 2008-09-25 | Alois Pöttinger Maschinenfabrik Gmbh | Tillage machine |
| CN103109600A (en) * | 2011-11-16 | 2013-05-22 | 泰州樱田农机制造有限公司 | Paddy field stubble burying cultivator |
| CN103168519A (en) * | 2013-04-10 | 2013-06-26 | 中国农业大学 | Hoe entering depth and entering angle continuous adjusting mechanism |
| CN105874954A (en) * | 2016-04-22 | 2016-08-24 | 扬州大学 | Mechanized farming process |
| CN206223136U (en) * | 2016-11-29 | 2017-06-06 | 重庆丰兴源生态农业发展有限公司 | Agricultural machinery depth of soil preparation measurement apparatus |
| CN208113353U (en) * | 2018-03-07 | 2018-11-20 | 河北农业大学 | Seed row straw treatment and soil loosening device of no-tillage corn seeder |
| CN109348759A (en) * | 2018-12-21 | 2019-02-19 | 农业部南京农业机械化研究所 | A kind of reversion stubble-cleaning compound rotary tiller |
| CN109964556A (en) * | 2019-04-11 | 2019-07-05 | 湖南龙舟农机股份有限公司 | A kind of rotary tillage machine control system and method |
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|---|---|
| CN111279816B (en) | 2022-04-22 |
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