CN114868487A - Accurate ditching device for agricultural planting and use method thereof - Google Patents
Accurate ditching device for agricultural planting and use method thereof Download PDFInfo
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- CN114868487A CN114868487A CN202210352399.4A CN202210352399A CN114868487A CN 114868487 A CN114868487 A CN 114868487A CN 202210352399 A CN202210352399 A CN 202210352399A CN 114868487 A CN114868487 A CN 114868487A
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 241000721671 Ludwigia Species 0.000 claims description 8
- 230000009471 action Effects 0.000 claims description 3
- 241000209140 Triticum Species 0.000 description 6
- 235000021307 Triticum Nutrition 0.000 description 6
- 238000009395 breeding Methods 0.000 description 4
- 230000001488 breeding effect Effects 0.000 description 4
- 241000495841 Oenanthe oenanthe Species 0.000 description 2
- 235000013339 cereals Nutrition 0.000 description 2
- 238000010899 nucleation Methods 0.000 description 2
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- 241000196324 Embryophyta Species 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
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- 238000005516 engineering process Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
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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
- A01C7/00—Sowing
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01C—PLANTING; SOWING; FERTILISING
- A01C7/00—Sowing
- A01C7/20—Parts of seeders for conducting and depositing seed
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Abstract
The invention discloses an accurate ditching device for agricultural planting and a using method thereof, wherein the ditching device comprises a fixed sliding rod, the fixed sliding rod is connected with an adjusting sliding rod through a lifting mechanism, and the adjusting sliding rod is fixedly connected with an intermediate fixed block; the ditching device further comprises three ditching units, wherein each ditching unit comprises three second moving blocks, and the second moving blocks are connected with the fixed sliding rod in a sliding mode; in the ditching unit positioned in the middle, the second moving blocks positioned at two sides are symmetrically arranged at two sides of the middle fixed block, and the second moving block positioned in the middle is arranged right below the middle fixed block; the second moving blocks located on the two sides are hinged to the middle fixing block through the first connecting rod, the second moving block located in the middle is connected with the middle fixing block in a sliding mode through the third connecting rod, and the second moving block is connected with the furrow opener through the supporting rod. The invention can reasonably adjust the row spacing between the ear rows and the ditches according to the actual requirement, can simultaneously carry out multi-row ditching work, and effectively improves the ditching efficiency and quality.
Description
Technical Field
The invention relates to the technical field of wheat planting, in particular to an accurate ditching device for agricultural planting and a using method thereof.
Background
Wheat is used as the second staple food grain in China, the variety breeding work is very important naturally, and a large number of high-quality and high-yield varieties are bred after decades of accumulation. Wheat test field seeding is different from peasant household and farm kind of grain, and the seeder can not be used in the test field seeding, to the scientific and technological worker, a lot of works still leave not can't open patience, careful manual work: for example, in the conventional breeding work of a wheat test field, in order to examine the character performance of filial generation, a breeding person needs to plant a large number of ear rows, the earth must be placed in a ditch which is opened in advance at equal intervals, and the quality of opening the ditch in advance has great influence on the seedling emergence and the test condition.
The production of the wheat ear row is the most important step in the seed reproduction process of a seed reproduction unit, the quality of the planting quality directly influences the seed quality, the planting and management method of the wheat ear row is different from the field planting technology, the single ear planting is adopted, and the planting method of sowing the ear as a unit into the ear row can provide guarantee for the large-scale fine variety breeding of the wheat. In general, a large number of ear-row ditches need to be manually arranged for planting one ear-row, then each ear of seeds is dibbled in the ear-row ditches in a manual dibbling mode, but the manual ditching mode is difficult to adjust the row spacing between adjacent ear-row ditches, so that a large number of ear-row ditches can not be ditched simultaneously, and the labor time and the labor burden of practitioners are seriously increased.
Disclosure of Invention
In order to solve the problems in the prior art, an accurate ditching device for agricultural planting and a using method thereof are provided.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the invention provides a precise ditching device for agricultural planting, which comprises a fixed sliding rod, wherein the fixed sliding rod is connected with an adjusting sliding rod through a lifting mechanism, and the adjusting sliding rod is fixedly connected with a middle fixed block; the ditching device further comprises three ditching units, wherein each ditching unit comprises three second moving blocks, and the second moving blocks are connected with the fixed sliding rod in a sliding mode; in the ditching unit positioned in the middle, the second moving blocks positioned at two sides are symmetrically arranged at two sides of the middle fixed block, and the second moving block positioned in the middle is arranged right below the middle fixed block; the second moving blocks located on two sides are hinged to the middle fixing block through first connecting rods, the second moving block located in the middle is connected with the middle fixing block in a sliding mode through third connecting rods, and the second moving blocks are connected with the furrow opener through supporting rods.
Preferably, the adjusting slide bar is connected with two first moving blocks in a sliding manner, and the first moving blocks are symmetrically arranged on two sides of the middle fixed block; in the ditching units positioned on two sides, the second moving blocks positioned on two sides are symmetrically arranged on two sides of the first moving block, the second moving block positioned in the middle is arranged under the first moving block, the second moving blocks positioned on two sides are hinged with the first moving block through a first connecting rod, and the second moving block positioned in the middle is connected with the first moving block in a sliding mode through a third connecting rod.
Preferably, in the ditching units positioned at two sides, the second moving block close to the middle fixed block is hinged with the middle fixed block through a second connecting rod.
Preferably, the length of the second connecting rod is greater than that of the first connecting rod, and the two second connecting rods are symmetrically arranged on two sides of the middle fixing block.
Preferably, the distance between any adjacent support rods is equal, the support rods are arranged in the vertical direction, the upper ends of the support rods are fixedly connected with the second moving block, and the bottom ends of the support rods are fixedly connected with the furrow opener.
Preferably, the second moving block in the middle of the ditching unit is fixedly connected with a limiting block, the third connecting rod is connected with the limiting block in a sliding mode, and the upper end of the third connecting rod is connected with the middle fixing block or the first moving block.
Preferably, the lifting mechanism comprises a screw rod, a bearing seat is fixedly connected with the fixed sliding rod, the bottom end of the screw rod is rotatably connected with the bearing seat, the screw rod is in threaded connection with the adjusting sliding rod, and a hand wheel is connected to the upper end of the screw rod.
Preferably, the fixed sliding rod is fixedly connected with a connecting rod, and the connecting rod is connected with the vehicle body through a hook; the adjusting slide rod is further connected with a seed box, and the seed box is connected with a telescopic pipe.
The invention also provides a using method of the precision ditching device for agricultural planting, and the precision ditching device for agricultural planting comprises the following steps:
s1: when the ditching interval needs to be increased, the lifting mechanism drives the adjusting slide bar to descend, and the adjusting slide bar drives the first moving block and the middle fixing block to descend;
s2: in the ditching units positioned at two sides, the first moving block drives the first connecting rod to rotate, and the first connecting rod drives the second moving block to slide on the fixed sliding rod, so that the distance between the adjacent second moving blocks is increased;
in the middle ditching unit, the middle fixed block drives the first connecting rod to rotate, and the first connecting rod drives the second moving blocks to slide on the fixed sliding rod, so that the distance between the adjacent second moving blocks is increased;
meanwhile, the middle fixing block drives the ditching units on the two sides to move outwards through the second connecting rod, so that the distance between the ditching units on the two sides and the ditching unit in the middle is increased, the distance between a plurality of ditchers is synchronously increased, and the ditching distance is increased;
s3: then the fixed slide bar is connected with the vehicle body, the vehicle body drives the fixed slide bar to move, and the ditching work is completed under the action of the ditcher along with the movement of the vehicle body.
Preferably, the method for driving the adjusting slide rod to move by the lifting mechanism comprises the steps that the hand wheel drives the screw rod to rotate, and when the screw rod rotates, the adjusting slide rod is driven to move in the vertical direction.
Compared with the prior art, the invention has the beneficial effects that:
1. the ditching units are arranged in the ditching machine, when the adjusting slide bar descends, the middle fixing block and the first moving block can drive the first connecting rod to rotate, the first connecting rod drives the second moving block to slide along the fixing slide bar, and the second moving block drives the ditchers to move through the supporting rods, so that the distance between every two adjacent ditchers is increased, the adjustment of the ear-row-ditch distance is realized, and the multiple regulated ditchers can realize simultaneous ditching of multiple rows, so that the ditching efficiency and quality are effectively improved, the labor time and labor burden of practitioners are reduced, and the ditching machine has high popularization value.
2. The multi-row ditching machine is further provided with a second connecting rod, the middle fixing block is fixedly connected with the adjusting slide rod, when the middle fixing block descends, the middle fixing block can drive the ditching units on two sides to move simultaneously through the second connecting rod, so that the distance between every two adjacent ditching units is increased, the distance between any two adjacent ditchers is increased simultaneously, the ditching efficiency during multi-row ditching is effectively improved, the adjacent ditching units are matched with each other, and the multi-row ditching machine is convenient to operate, economical and practical.
Drawings
The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:
FIG. 1 is an overall front view of the present invention;
FIG. 2 is an overall side view of the present invention;
FIG. 3 is a front view of the present invention (in operation);
fig. 4 is a schematic view of a portion a-a of fig. 1.
Description of the reference numerals:
1, a furrow opener; 2, supporting rods; 3, a telescopic pipe; 4 connecting rods; 5 fixing the sliding rod; 6 adjusting the sliding rod; 7, a hand wheel; 8, a seed box; 9, a screw rod; 10 a first link; 11 a first moving block; 12 a second link; 13 middle fixed block; 14 a second moving block; 15 a third link; 16, hanging hooks; 17, a bearing seat; 18 a stop block.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.
Referring to the attached drawings 1-4, the embodiment provides a precision ditching device for agricultural planting, which comprises a fixed slide bar 5, wherein a fixed slide bar 7 is connected with an adjusting slide bar 6 through a lifting mechanism, the fixed slide bar 5 and the adjusting slide bar 6 are arranged in the horizontal direction, and the fixed slide bar 5 and the adjusting slide bar 6 are parallel to each other.
The fixed slide bar 5 is fixedly connected with a connecting rod 4, the connecting rod 4 is arranged in the horizontal direction, the connecting rod 4 is connected with the vehicle body through a hook 16, and the vehicle body can drive the fixed slide bar 5 to move through the hook 16 and the connecting rod 4 at the joint of the vehicle body and the hook 16.
The adjusting slide bar 6 is fixedly connected with a middle fixing block 13, and the middle fixing block 13 is arranged in the middle of the adjusting slide bar 6. The ditching machine further comprises three ditching units, each ditching unit comprises three second moving blocks 14, the number of the second moving blocks 14 is 9, the 9 second moving blocks 14 are connected with the fixed sliding rod 5 in a sliding mode, and the second moving blocks 14 are sleeved on the fixed sliding rod 5.
In the ditching unit positioned in the middle, the second moving blocks 14 positioned at two sides are symmetrically arranged at two sides of the middle fixed block 13, and the second moving block 14 positioned in the middle is arranged under the middle fixed block 13; the second moving blocks 14 positioned at two sides are hinged with the middle fixed block 13 through the first connecting rod 10, the second moving block 14 positioned in the middle is connected with the middle fixed block 13 in a sliding mode through the third connecting rod 15, and the second moving block 14 is connected with the furrow opener 1 through the supporting rod 2.
The first connecting rods 10 are symmetrically arranged on two sides of the middle fixing block 13, one end of each first connecting rod 10 is hinged to the middle fixing block 13, the other end of each first connecting rod 10 is hinged to the second moving block 14, so that the middle fixing block 13 moves in the vertical direction, the first connecting rods 10 can drive the second moving blocks 14 to move simultaneously, and the two second moving blocks 14 are symmetrically arranged and have the same moving distance.
The adjusting slide bar 6 is connected with two first moving blocks 11 in a sliding manner, and the first moving blocks 11 are symmetrically arranged at two sides of a middle fixed block 13; in the ditching units on two sides, the second moving blocks 14 on two sides are symmetrically arranged on two sides of the first moving block 11, the second moving block 14 in the middle is arranged under the first moving block 11, the second moving blocks 14 on two sides are hinged with the first moving block 11 through the first connecting rod 10, and the second moving block 14 in the middle is connected with the first moving block 11 in a sliding mode through the third connecting rod 15.
The first connecting rods 10 are symmetrically arranged on two sides of the first moving block 11, one end of each first connecting rod 10 is hinged to the first moving block 11, and the other end of each first connecting rod 10 is hinged to the second moving block 14, so that when the first moving block 11 moves in the vertical direction, the first connecting rods 10 can drive the second moving blocks 14 to move simultaneously, and due to the symmetrical arrangement, the moving distances of the two second moving blocks 14 are the same.
In the ditching units positioned at two sides, a second moving block 14 close to a middle fixed block 13 is hinged with the middle fixed block 13 through a second connecting rod 12, one end of the second connecting rod 12 is hinged with the middle fixed block 13, and the other end of the second connecting rod 12 is hinged with the second moving block 14. The length of the second connecting rod 12 is greater than that of the first connecting rod 10, and the second connecting rod 12 is provided with two connecting rods which are symmetrically arranged at two sides of the middle fixing block 13.
The ditching unit symmetry that is located both sides sets up ditching unit both sides in the middle, thereby when making middle fixed block 13 vertical direction remove, second connecting rod 12 can drive the ditching unit that is located both sides and remove simultaneously, and the interval of both sides ditching unit and middle ditching unit increases simultaneously, consequently can realize the interval grow simultaneously between the arbitrary adjacent furrow opener 1, the ditching efficiency when effectively improving and carry out the multirow ditching, mutually support between the adjacent ditching unit, convenient operation, economical and practical.
The distance between arbitrary adjacent bracing piece 2 equals, and the vertical direction setting of bracing piece 2, bracing piece 2 upper end and second movable block 14 fixed connection, bracing piece 2 bottom and furrow opener 1 can be dismantled and be connected, can change the furrow opener 1 of different length according to the degree of depth of actual ditching, in addition when need not so many furrow openers 1 simultaneous working, can dismantle the furrow opener 1 of corresponding quantity.
The second moving block 14 in the middle of the ditching unit is fixedly connected with a limiting block 18, a third connecting rod 15 is connected with the limiting block 18 in a sliding mode, and the upper end of the third connecting rod 15 is connected with the middle fixing block 13 or the first moving block 13. The third connecting rod 15 plays a role in limiting and guiding the movement of the adjusting slide bar 6, so that the adjusting slide bar 6 can only drive the first moving block 13 and the middle fixing block 13 to move in the vertical direction.
The lifting mechanism comprises a screw rod 9, a bearing seat 17 is fixedly connected with the fixed slide rod 5, the bottom end of the screw rod 9 is rotatably connected with the bearing seat 17, the screw rod 9 is in threaded connection with the adjusting slide rod 6, and the upper end of the screw rod 9 is connected with a hand wheel 7. The hand wheel 7 is convenient for rotating the screw rod 9, and when the screw rod 9 rotates, the adjusting slide rod 6 can be driven to move in the vertical direction.
The upper end of the adjusting slide bar 6 is fixedly connected with a seed box 8, the seed box 8 is connected with a telescopic pipe 3, and the seed box 8 is used for normal storage work of wheat seeds.
The invention also provides a using method of the precision ditching device for agricultural planting, and the precision ditching device for agricultural planting comprises the following steps:
s1: when the ditching spacing needs to be increased, the adjusting slide bar 6 is driven to descend by the lifting mechanism, and the adjusting slide bar 6 drives the first moving block 11 and the middle fixing block 13 to descend;
s2: in the ditching units positioned at two sides, the first moving block 11 drives the first connecting rod 10 to rotate, and the first connecting rod 10 drives the second moving block 14 to slide on the fixed slide bar 5, so that the distance between the adjacent second moving blocks 14 is increased;
in the middle ditching unit, the middle fixing block 13 drives the first connecting rod 10 to rotate, and the first connecting rod 10 drives the second moving blocks 14 to slide on the fixing slide rod 5, so that the distance between the adjacent second moving blocks 14 is increased;
meanwhile, the middle fixing block 13 drives the ditching units on the two sides to move outwards through the second connecting rod 12, so that the distance between the ditching units on the two sides and the ditching unit in the middle is increased, and the distance between the plurality of ditchers 1 is synchronously increased, so that the ditching distance is increased;
s3: then the fixed slide bar 5 is connected with the vehicle body, the vehicle body drives the fixed slide bar 5 to move, and the ditching work is completed under the action of the ditcher 1 along with the movement of the vehicle body.
The method for driving the adjusting slide bar 6 to move by the lifting mechanism comprises the steps that the hand wheel 7 drives the screw rod 9 to rotate, and when the screw rod 9 rotates, the adjusting slide bar 6 is driven to move in the vertical direction.
It should be noted that, when the adjusting slide bar 6 descends, the middle fixed block 13 and the first moving block 11 can drive the first connecting rod 10 to rotate, the first connecting rod 10 drives the second moving block 14 to slide along the fixed slide bar 5, the second moving block 14 drives the furrow openers 1 to move through the supporting rods 2, so that the distance between the adjacent furrow openers 1 is increased, the adjustment of the ear-row-furrow distance is realized, and the multiple regulated furrow openers 1 can realize simultaneous ditching of multiple rows, the efficiency and the quality of ditching are effectively improved, the labor time and the labor burden of practitioners are reduced, and the popularization value is very high.
In addition, because middle fixed block 13 and adjustment slide bar 6 fixed connection, when middle fixed block 13 descends, middle fixed block 13 accessible second connecting rod 12 drives the ditching unit that is located both sides and removes simultaneously, makes the interval between the adjacent ditching unit also grow to make the interval between arbitrary adjacent furrow opener 1 grow simultaneously, the ditching efficiency when effectively improving to carry out the multirow ditching is mutually supported between the adjacent ditching unit, convenient operation, economical and practical.
While embodiments of the invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.
Claims (10)
1. The accurate ditching device for agricultural planting comprises a fixed sliding rod (5), and is characterized in that the fixed sliding rod (7) is connected with an adjusting sliding rod (6) through a lifting mechanism, and the adjusting sliding rod (6) is fixedly connected with a middle fixed block (13); the ditching machine further comprises three ditching units, each ditching unit comprises three second moving blocks (14), and the second moving blocks (14) are connected with the fixed sliding rod (5) in a sliding mode; in the middle ditching unit, the second moving blocks (14) positioned at two sides are symmetrically arranged at two sides of the middle fixed block (13), and the second moving block (14) positioned in the middle is arranged under the middle fixed block (13); the second moving blocks (14) located on two sides are hinged with the middle fixing block (13) through first connecting rods (10), the second moving block (14) located in the middle is connected with the middle fixing block (13) in a sliding mode through third connecting rods (15), and the second moving block (14) is connected with the furrow opener (1) through supporting rods (2).
2. The accurate ditching device for agricultural planting according to claim 1, wherein the adjusting slide bar (6) is slidably connected with two first moving blocks (11), and the first moving blocks (11) are symmetrically arranged at two sides of the middle fixed block (13); in the ditching units positioned at two sides, the second moving blocks (14) positioned at two sides are symmetrically arranged at two sides of the first moving block (11), the second moving block (14) positioned in the middle is arranged under the first moving block (11), the second moving blocks (14) positioned at two sides are hinged with the first moving block (11) through the first connecting rod (10), and the second moving block (14) positioned in the middle is connected with the first moving block (11) in a sliding manner through the third connecting rod (15).
3. The accurate ditching device for agricultural planting according to claim 2, wherein in the ditching units at two sides, the second moving block (14) close to the middle fixed block (13) is hinged with the middle fixed block (13) through the second connecting rod (12).
4. The precision ditching device for agricultural planting according to claim 3, wherein the length of the second connecting rod (12) is greater than that of the first connecting rod (10), and two connecting rods (12) are arranged and symmetrically arranged on two sides of the middle fixing block (13).
5. The accurate ditching device for agricultural planting according to claim 4, wherein the distance between any adjacent support rods (2) is equal, the support rods (2) are arranged in the vertical direction, the upper ends of the support rods (2) are fixedly connected with the second moving block (14), and the bottom ends of the support rods (2) are detachably connected with the ditcher (1).
6. The accurate ditching device for agricultural planting according to claim 1, wherein a limit block (18) is fixedly connected to a second moving block (14) located in the middle of the ditching unit, the third connecting rod (15) is slidably connected with the limit block (18), and the upper end of the third connecting rod (15) is connected with the middle fixed block (13) or the first moving block (13).
7. The accurate ditching device for agricultural planting according to claim 1, wherein the lifting mechanism comprises a screw rod (9), the fixed slide rod (5) is fixedly connected with a bearing seat (17), the bottom end of the screw rod (9) is rotatably connected with the bearing seat (17), the screw rod (9) is in threaded connection with the adjusting slide rod (6), and the upper end of the screw rod (9) is connected with a hand wheel (7).
8. The accurate ditching device for agricultural planting according to claim 1, wherein the fixed slide bar (5) is fixedly connected with a connecting rod (4), and the connecting rod (4) is connected with the vehicle body through a hook (16); the adjusting slide rod (6) is further connected with a seed box (8), and the seed box (8) is connected with a telescopic pipe (3).
9. An application method of the precision ditching device for agricultural planting is characterized in that the precision ditching device for agricultural planting according to any one of claims 5 to 8 is adopted, and comprises the following steps:
s1: when the ditching spacing needs to be increased, the lifting mechanism drives the adjusting slide bar (6) to descend, and the adjusting slide bar (6) drives the first moving block (11) and the middle fixing block (13) to descend;
s2: in the ditching units positioned at two sides, a first moving block (11) drives a first connecting rod (10) to rotate, and the first connecting rod (10) drives a second moving block (14) to slide on a fixed slide bar (5), so that the distance between the adjacent second moving blocks (14) is increased;
in the middle ditching unit, the middle fixed block (13) drives the first connecting rod (10) to rotate, and the first connecting rod (10) drives the second moving blocks (14) to slide on the fixed slide bar (5), so that the distance between the adjacent second moving blocks (14) is increased;
meanwhile, the middle fixing block (13) drives the ditching units on the two sides to move outwards through the second connecting rod (12), so that the distance between the ditching units on the two sides and the ditching unit in the middle is increased, and the distance between the plurality of ditchers (1) is synchronously increased, so that the ditching distance is increased;
s3: then the fixed slide bar (5) is connected with the vehicle body, the vehicle body drives the fixed slide bar (5) to move, and the ditching work is completed under the action of the ditcher (1) along with the movement of the vehicle body.
10. The use method of the precise ditching device for agricultural planting according to claim 9, wherein the method for driving the adjusting slide bar (6) to move by the lifting mechanism comprises the steps of driving the screw rod (9) to rotate through the hand wheel (7), and driving the adjusting slide bar (6) to move in the vertical direction when the screw rod (9) rotates.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210352399.4A CN114868487A (en) | 2022-04-05 | 2022-04-05 | Accurate ditching device for agricultural planting and use method thereof |
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| CN202210352399.4A CN114868487A (en) | 2022-04-05 | 2022-04-05 | Accurate ditching device for agricultural planting and use method thereof |
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