CN110121981B - Earthing machineshop car based on modern agriculture - Google Patents
Earthing machineshop car based on modern agriculture Download PDFInfo
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- CN110121981B CN110121981B CN201910430702.6A CN201910430702A CN110121981B CN 110121981 B CN110121981 B CN 110121981B CN 201910430702 A CN201910430702 A CN 201910430702A CN 110121981 B CN110121981 B CN 110121981B
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- cavity
- rod
- seeding
- block
- soil covering
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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
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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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- Life Sciences & Earth Sciences (AREA)
- Soil Sciences (AREA)
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- Sowing (AREA)
Abstract
The invention discloses a soil covering mechanical vehicle based on modern agriculture, which comprises a seeding box, wherein a pull rod is fixedly arranged on the left side surface of the seeding box, a device can be pulled to move through the pull rod, a storage cavity with an upward opening is arranged in the top surface of the seeding box, seeds are placed in the storage cavity, when a wheel rotates to drive the rotating rod to rotate, the rotating rod rotates to drive a second gear to rotate, the second gear drives a first gear and a transmission rod to rotate through a chain to provide power for a seeding mechanism, the seeding box is driven to move through the pull rod and a moving mechanism, the seeds in the storage cavity are controlled to fall through the seeding cavity according to a certain amount through the rotation of an eccentric wheel, whether seeding is needed or not can be selected by adjusting the position of a limiting rod, soil covering can be carried out in the moving process of the seeding box through a soil covering mechanism, and the, further, the distance between the front and rear soil covering trays can be adjusted, and the angles of the front and rear soil covering trays can also be adjusted.
Description
Technical Field
The invention relates to the technical field of soil covering mechanical vehicles, in particular to a soil covering mechanical vehicle based on modern agriculture.
Background
In modern agriculture, soil covering is generally used for covering seeds with soil after the seeds are sowed so as to ensure that the growth environment of the seeds is good, and in another situation, soil covering is used for preserving heat of the plants and preventing water and nutrient loss in the process of growing and forming the plants so as to cover the soil around the plants.
Generally, in the process of earthing, the earth is excavated by using an iron shovel and then is earthed, huge physical power is consumed, the working time is long, the iron shovel is not suitable for large planting bases, and the ordinary earthing mechanical vehicle is not provided with an automatic seeding function and only has an earthing function, so that the angle of the earthing disc and the distance between the two earthing discs are difficult to adjust, and the angle cannot be adjusted according to the width of a ridge.
Disclosure of Invention
The aim of the present invention is to provide a soil-covering vehicle based on modern agriculture, designed to overcome the above mentioned drawbacks of the prior art.
According to the embodiment of the invention, the earthing mechanical vehicle based on modern agriculture comprises a seeding box, wherein a pull rod is fixedly installed on the left side surface of the seeding box, the mechanical vehicle can be pulled to move through the pull rod, a storage cavity with an upward opening is formed in the top surface of the seeding box, seeds are placed in the storage cavity, a seeding mechanism capable of seeding the seeds according to a certain amount is arranged below the storage cavity, a moving mechanism capable of moving a device is arranged below the seeding box, an earth covering box is fixedly installed on the right side surface of the seeding box, and an earthing mechanism capable of earthing soil plants is arranged below the earth covering box;
the soil covering mechanism is composed of a cavity, a moving cavity, moving blocks and soil covering disks, the cavity is arranged in the soil covering box, the top wall of the cavity is communicated with the moving cavity, the moving blocks are symmetrically installed in the moving cavity in a sliding mode in a front-back mode, the soil covering disks are arranged below the moving blocks, soil covering is carried out on soil plants by the soil covering disks, and the distance between the front soil covering disk and the rear soil covering disk is adjusted by the front moving blocks and the rear moving blocks.
On the basis of the technical scheme, the moving mechanism is composed of a fixed block, a rotating rod and wheels, the fixed block is symmetrically and fixedly installed at the front and back of the bottom surface of the seeding box, the front and back of the fixed block are rotatably installed between the fixed blocks, the rotating rod is fixedly installed on the front and back end faces of the rotating rod, and the wheels are driven by the rotation of the wheels to move the seeding box back and forth.
On the basis of the technical scheme, the seeding mechanism comprises transmission cavity, connection cavity, transfer line, first gear, second gear and chain, the transmission cavity sets up in the seeding bottom of the case face, the transmission cavity rear side is equipped with connect the cavity, connect the cavity with rotate the installation between the transmission cavity the transfer line, transfer line leading flank fixed mounting first gear, fixed mounting on the dwang the second gear, the second gear with the transmission installation between the first gear the chain.
On the basis of the technical scheme, a meshing cavity is arranged on the right side of the connecting cavity, the connecting cavity is connected with a connecting rod which is rotatably installed between the meshing cavities, a second bevel gear is fixedly installed on the left side face of the connecting rod, a first bevel gear is fixedly installed on the rear side face of the transmission rod, the first bevel gear is meshed with the second bevel gear, a third bevel gear is fixedly installed on the right side face of the connecting rod, an eccentric wheel cavity is arranged below the meshing cavity, a power rod is rotatably installed between the meshing cavity and the eccentric wheel cavity, a fourth bevel gear is fixedly installed on the top face of the power rod and is meshed with the third bevel gear, and an eccentric wheel is fixedly installed on the bottom face of the power rod.
On the basis of the technical scheme, the lower part of the storage cavity is communicated with a seeding cavity penetrating through the bottom surface of the seeding box, and the seeding cavity can be sealed by the eccentric wheel to prevent the seeds from falling down all the time through the seeding cavity.
On the basis of the technical scheme, a limiting rod is slidably mounted between the inner wall of the right side of the seeding cavity and the right side face of the seeding box, the limiting rod can seal the seeding cavity, a spring block is arranged above the limiting rod, a clamping block is slidably mounted in the spring block, the bottom surface of the clamping block is fixedly mounted on the top surface of the limiting rod, a spring is fixedly mounted between the right side face of the clamping block and the inner wall of the right side of the spring block, the limiting block is rotatably mounted on the right side face of the limiting rod, and a stop block is fixedly mounted on the right side face of the seeding box.
On the basis of the technical scheme, the soil covering mechanism is further composed of a first threaded rod and a hand wheel, the first threaded rod is further rotatably installed in the inner wall of the front side of the cavity, the moving block and the first threaded rod are installed in a threaded mode, the first threaded rod penetrates through the rear side face of the soil covering box backwards, the hand wheel is fixedly installed on the rear side face of the first threaded rod, and the threads of the front moving block and the threads of the rear moving block are opposite.
On the basis of the technical scheme, a rotating block is installed in the bottom surface of the moving block in a rotating mode, a disc is fixedly installed on the bottom surface of the rotating block, supporting rods are symmetrically and fixedly installed on the front and back of the bottom surface of the disc, an auxiliary rod is fixedly installed between the supporting rods, an earthing disc is fixedly installed on the auxiliary rod, an articulated rod is installed on the top surface of the disc in an articulated mode, a fixing plate is fixedly installed on the top wall of the cavity, a sliding cavity is formed in the fixing plate, a sliding block is installed in the sliding cavity in a sliding mode and is articulated with the articulated rod, a second threaded rod penetrating through the right side face of the fixing plate is installed in the inner wall of the left side of the sliding cavity in a rotating.
The invention has the beneficial effects that: the seeding box is driven to move by the pull rod and the moving mechanism, in the moving process, the rotating rod rotates to transmit power to the eccentric wheel, seeds in the storage cavity are controlled to fall through the seeding cavity according to a certain amount by the rotation of the eccentric wheel, the seeds are further sown, whether sowing is needed or not can be selected by adjusting the position of the limiting rod, soil covering can be performed in the moving process of the seeding box by the soil covering mechanism, huge physical strength is not required to be consumed manually, the soil covering efficiency is increased, in addition, the distance between the front moving block and the rear moving block can be adjusted by rotating the hand wheel, the distance between the front soil covering disk and the rear soil covering disk can be adjusted according to the width of a field ridge, the second threaded rod can be driven to rotate by rotating the knob, the angles of the front soil covering disk and the rear soil covering disk can.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic diagram of the right-hand side view of the present invention;
FIG. 3 is a schematic sectional view taken along line A-A in FIG. 1;
FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 1;
FIG. 5 is an enlarged schematic view at C of FIG. 1;
FIG. 6 is a schematic cross-sectional view taken along line D-D of FIG. 2;
fig. 7 is a schematic sectional view in the direction of E-E in fig. 2.
Detailed Description
The invention will now be described in detail with reference to fig. 1-7, for convenience of description, the following orientations will now be defined: the up, down, left, right, and front-back directions described below correspond to the up, down, left, right, and front-back directions in the projection relationship of fig. 1 itself.
Referring to fig. 1-7, according to the embodiment of the present invention, a soil covering mechanical vehicle based on modern agriculture includes a seeding box 29, a pull rod 11 is fixedly installed on the left side surface of the seeding box 29, the mechanical vehicle can be pulled to move by the pull rod 11, a storage cavity 23 with an upward opening is arranged in the top surface of the seeding box 29, seeds 55 are placed in the storage cavity 23, a seeding mechanism 101 capable of seeding the seeds 55 according to a certain amount is arranged below the storage cavity 23, a moving mechanism 102 capable of moving the device is arranged below the seeding box 29, a soil covering box 30 is fixedly installed on the right side surface of the seeding box 29, a soil covering mechanism 103 capable of covering soil for soil plants is arranged below the soil covering box 30, the soil covering mechanism 103 includes a cavity 56 arranged in the soil covering box 30, a moving cavity top wall 56 is communicated with a moving cavity 43, moving blocks 42 are symmetrically installed in the moving cavity 43 in a sliding manner, a soil covering disc 35 is arranged below the moving block 42, the soil covering disc 35 covers soil on soil plants, and the distance between the front and rear soil covering discs 35 is adjusted by the front and rear moving blocks 42.
In addition, in one embodiment, the moving mechanism 102 includes fixed blocks 14 that are symmetrically and fixedly installed at the bottom of the sowing box 29 in a front-back manner, a rotating rod 16 is rotatably installed between the front and rear fixed blocks 14, a wheel 13 is fixedly installed on the front and rear end surfaces of the rotating rod 16, and the sowing box 29 is driven to move back and forth by the rotation of the wheel 13.
In addition, in one embodiment, the sowing mechanism 101 includes a transmission cavity 28 arranged in the bottom surface of the sowing box 29, a connection cavity 46 is arranged at the rear side of the transmission cavity 28, the connection cavity 46 and the transmission rod 12 are rotatably arranged between the transmission cavities 28, the first gear 27 is fixedly arranged at the front side surface of the transmission rod 12, the second gear 15 is fixedly arranged on the rotation rod 16, the second gear 15 and the chain 17 are rotatably arranged between the first gears 27, so that when the wheel 13 rotates to drive the rotation rod 16 to rotate, the rotation rod 16 rotates to drive the second gear 15 to rotate, the second gear 15 drives the first gear 27 and the transmission rod 12 to rotate through the chain 17, and power is provided for the sowing mechanism 101.
In addition, in one embodiment, an engagement cavity 24 is formed at the right side of the connection cavity 46, a connection rod 26 is rotatably installed between the connection cavity 46 and the engagement cavity 24, a second bevel gear 48 is fixedly installed at the left side surface of the connection rod 26, a first bevel gear 47 is fixedly installed at the rear side surface of the transmission rod 12, the first bevel gear 47 is engaged with the second bevel gear 48, a third bevel gear 25 is fixedly installed at the right side surface of the connection rod 26, an eccentric wheel cavity 18 is formed below the engagement cavity 24, a power rod 20 is rotatably installed between the engagement cavity 24 and the eccentric wheel cavity 18, a fourth bevel gear 22 is fixedly installed at the top surface of the power rod 20, the fourth bevel gear 22 is engaged with the third bevel gear 25, an eccentric wheel 19 is fixedly installed at the bottom surface of the power rod 20, so that when the transmission rod 12 rotates to drive the first bevel gear 47 to rotate, the first bevel gear 47 drives the connection rod 26 and the third bevel gear 25, the third bevel gear 25 drives the power rod 20 and the eccentric wheel 19 to rotate through the fourth bevel gear 22, and the seeds 55 in the storage cavity 23 can be sown by a certain amount through the rotation of the eccentric wheel 19.
In addition, in one embodiment, a seeding cavity 21 penetrating through the bottom surface of the seeding box 29 is communicated below the storage cavity 23, and the eccentric wheel 19 can seal the seeding cavity 21 to prevent the seeds 55 from falling all the way through the seeding cavity 21.
In addition, in an embodiment, a limiting rod 54 is slidably installed between the inner wall of the right side of the sowing cavity 21 and the right side of the sowing box 29, the limiting rod 54 can seal the sowing cavity 21, a spring block 49 is arranged above the limiting rod 54, a clamping block 50 is slidably installed in the spring block 49, the bottom surface of the clamping block 50 is fixedly installed on the top surface of the limiting rod 54, a spring 51 is fixedly installed between the right side of the clamping block 50 and the inner wall of the right side of the spring block 49, a limiting block 53 is rotatably installed on the right side of the limiting rod 54, and a stop 52 is fixedly installed on the right side of the sowing box 29, so that when seeds 55 need to be sown, the limiting block 53 and the limiting rod 54 are pulled, then the limiting block 53 is rotated, the limiting block 53 is clamped on the stop 52, and the sowing cavity.
In addition, in one embodiment, the soil covering mechanism 103 further includes a first threaded rod 31 rotatably installed in the inner wall of the front side of the cavity 56, the moving block 42 is installed with the first threaded rod 31 in a threaded manner, the first threaded rod 31 passes through the rear side of the soil covering box 30 backwards, a hand wheel 40 is fixedly installed on the rear side of the first threaded rod 31, the front and rear moving blocks 42 are opposite in thread, so that the hand wheel 40 is rotated to drive the first threaded rod 31 to rotate, the front and rear moving blocks 42 are close to or far away from each other, and the distance between the front and rear soil covering discs 35 is adjusted.
In addition, in one embodiment, the moving block 42 is rotatably mounted with the rotating block 32 at the bottom, the disc 33 is fixedly mounted at the bottom of the rotating block 32, the support rods 34 are symmetrically and longitudinally mounted at the bottom of the disc 33, the auxiliary rod 36 is fixedly mounted between the front support rod and the rear support rod 34, the soil covering disk 35 is fixedly mounted on the auxiliary rod 36, the hinge rod 39 is hinged to the top of the disc 33, the fixed plate 41 is fixedly mounted at the top wall of the cavity 56, the fixed plate 41 is internally provided with the sliding cavity 44, the sliding block 38 is slidably mounted in the sliding cavity 44, the sliding block 38 is hinged to the hinge rod 39, the second threaded rod 37 penetrating through the right side surface of the fixed plate 41 is rotatably mounted on the inner wall of the left side of the sliding cavity 44, the knob 45 is fixedly mounted on the right side surface of the second threaded rod 37, and the second threaded rod 37 is threadedly mounted, the second threaded rod 37 is driven to rotate by rotating the knob 45, the second threaded rod 37 rotates to drive the sliding block 38 to move left and right, so that the sliding block 38 drives the disc 33 to rotate through the hinge rod 39, and the soil covering angle of the front and rear soil covering discs 35 is adjusted.
When the seeding box is used, the seeding box 29 can be driven to move back and forth through the rotation of the wheel 13, when seeds 55 need to be seeded, the limiting block 53 and the limiting rod 54 are pulled to be blocked, then the limiting block 53 is rotated, the limiting block 53 is clamped on the stop block 52, the seeding cavity 21 can be kept to be communicated all the time, when the wheel 13 rotates to drive the rotating rod 16 to rotate, the rotating rod 16 rotates to drive the second gear 15 to rotate, the second gear 15 drives the first gear 27 and the transmission rod 12 to rotate through the chain 17, when the transmission rod 12 rotates to drive the first bevel gear 47 to rotate, the first bevel gear 47 drives the connecting rod 26 and the third bevel gear 25 to rotate through the second bevel gear 48, the third bevel gear 25 drives the power rod 20 and the eccentric wheel 19 to rotate through the fourth bevel gear 22, the seeds 55 stored in the cavity 23 can be seeded according to a certain amount through the rotation of the eccentric wheel, make fore-and-aft movable block 42 be close to each other or keep away from each other, adjust the distance between the earthing dish 35 around, when the earthing angle of earthing dish 35 around needs to be adjusted, drive second threaded rod 37 through rotating knob 45 and rotate, second threaded rod 37 rotates and drives sliding block 38 and remove about for sliding block 38 drives disc 33 through articulated rod 39 and rotates, and then adjusts the earthing angle of earthing dish 35 around.
The invention has the beneficial effects that: the seeding box is driven to move by the pull rod and the moving mechanism, in the moving process, the rotating rod rotates to transmit power to the eccentric wheel, seeds in the storage cavity are controlled to fall through the seeding cavity according to a certain amount by the rotation of the eccentric wheel, the seeds are further sown, whether sowing is needed or not can be selected by adjusting the position of the limiting rod, soil covering can be performed in the moving process of the seeding box by the soil covering mechanism, huge physical strength is not required to be consumed manually, the soil covering efficiency is increased, in addition, the distance between the front moving block and the rear moving block can be adjusted by rotating the hand wheel, the distance between the front soil covering disk and the rear soil covering disk can be adjusted according to the width of a field ridge, the second threaded rod can be driven to rotate by rotating the knob, the angles of the front soil covering disk and the rear soil covering disk can.
It will be apparent to those skilled in the art that various modifications may be made to the above embodiments without departing from the general spirit and concept of the invention. All falling within the scope of protection of the present invention. The protection scheme of the invention is subject to the appended claims.
Claims (1)
1. The utility model provides an earthing machineshop car based on modern agriculture, includes seeding case, its characterized in that: a pull rod is fixedly installed on the left side face of the seeding box, the mechanical vehicle can be pulled to move through the pull rod, a storage cavity with an upward opening is formed in the top face of the seeding box, seeds are placed in the storage cavity, a seeding mechanism capable of seeding the seeds according to a certain amount is arranged below the storage cavity, a moving mechanism capable of moving the device is arranged below the seeding box, a soil covering box is fixedly installed on the right side face of the seeding box, and a soil covering mechanism capable of covering soil on soil plants is arranged below the soil covering box; the soil covering mechanism consists of a cavity, a moving cavity, moving blocks and soil covering disks, the cavity is arranged in the soil covering box, the top wall of the cavity is communicated with the moving cavity, the moving blocks are symmetrically installed in the moving cavity in a sliding mode from front to back, the soil covering disks are arranged below the moving blocks, the soil covering disks cover soil on soil plants, and the distance between the front soil covering disks and the rear soil covering disks is adjusted by the front moving blocks and the rear moving blocks; the moving mechanism consists of a fixed block, a rotating rod and wheels; the fixed blocks are symmetrically and fixedly arranged on the bottom surface of the seeding box in a front-back manner, the rotating rod is rotatably arranged between the front fixed block and the rear fixed block, the wheels are fixedly arranged on the front end surface and the rear end surface of the rotating rod, and the seeding box is driven to move back and forth through the rotation of the wheels; the seeding mechanism consists of a transmission cavity, a connecting cavity, a transmission rod, a first gear, a second gear and a chain; the transmission cavity is arranged in the bottom surface of the sowing box, the connecting cavity is arranged at the rear side of the transmission cavity, the transmission rod is rotatably arranged between the connecting cavity and the transmission cavity, the first gear is fixedly arranged on the front side surface of the transmission rod, the second gear is fixedly arranged on the transmission rod, and the chain is arranged between the second gear and the first gear in a transmission way; a meshing cavity is formed in the right side of the connecting cavity, a connecting rod is rotatably mounted between the connecting cavity and the meshing cavity, a second bevel gear is fixedly mounted on the left side surface of the connecting rod, a first bevel gear is fixedly mounted on the rear side surface of the transmission rod and meshed with the second bevel gear, a third bevel gear is fixedly mounted on the right side surface of the connecting rod, an eccentric wheel cavity is arranged below the meshing cavity, a power rod is rotatably mounted between the meshing cavity and the eccentric wheel cavity, a fourth bevel gear is fixedly mounted on the top surface of the power rod and meshed with the third bevel gear, and an eccentric wheel is fixedly mounted on the bottom surface of the power rod; a seeding cavity penetrating through the bottom surface of the seeding box is communicated below the storage cavity, the seeding cavity can be sealed by the eccentric wheel, and the seeds are prevented from falling all the way through the seeding cavity; a limiting rod is slidably mounted between the inner wall of the right side of the seeding cavity and the right side of the seeding box, the limiting rod can seal the seeding cavity, a spring block is arranged above the limiting rod, a clamping block is slidably mounted in the spring block, the bottom surface of the clamping block is fixedly mounted with the top surface of the limiting rod, a spring is fixedly mounted between the right side of the clamping block and the inner wall of the right side of the spring block, a limiting block is rotatably mounted on the right side of the limiting rod, and a stopping block is fixedly mounted on the right side of the seeding box; the soil covering mechanism is also composed of a first threaded rod and a hand wheel; the first threaded rod is further rotatably mounted in the inner wall of the front side of the cavity, the moving block and the first threaded rod are mounted in a threaded manner, the first threaded rod penetrates through the rear side face of the soil covering box backwards, the hand wheel is fixedly mounted on the rear side face of the first threaded rod, and the threads of the front moving block and the threads of the rear moving block are opposite; the movable block is characterized in that a rotating block is rotatably mounted in the bottom surface of the movable block, a disc is fixedly mounted on the bottom surface of the rotating block, supporting rods are symmetrically and fixedly mounted in the front and back of the bottom surface of the disc, an auxiliary rod is fixedly mounted between the supporting rods, an earth covering disc is fixedly mounted on the auxiliary rod, a hinged rod is hinged to the top surface of the disc, a fixed plate is fixedly mounted on the top wall of the cavity, a sliding cavity is formed in the fixed plate, a sliding block is slidably mounted in the sliding cavity, the sliding block is hinged to the hinged rod, a second threaded rod penetrating through the right side face of the fixed plate is rotatably mounted in the inner wall of the left side of the sliding cavity, a.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430702.6A CN110121981B (en) | 2019-05-22 | 2019-05-22 | Earthing machineshop car based on modern agriculture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910430702.6A CN110121981B (en) | 2019-05-22 | 2019-05-22 | Earthing machineshop car based on modern agriculture |
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| CN110121981A CN110121981A (en) | 2019-08-16 |
| CN110121981B true CN110121981B (en) | 2020-09-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910430702.6A Active CN110121981B (en) | 2019-05-22 | 2019-05-22 | Earthing machineshop car based on modern agriculture |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110495292B (en) * | 2019-09-28 | 2020-12-25 | 日照瀚林春茶业有限公司 | Fertilization interval-adjustable fertilization device used in farmland |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3848553A (en) * | 1972-04-24 | 1974-11-19 | J Tye | Agricultural drill |
| CN205389402U (en) * | 2016-03-09 | 2016-07-27 | 吉林农业大学 | Disc type covering device is put to front and back branch |
| CN206923252U (en) * | 2017-04-24 | 2018-01-26 | 北京银月亮种业科技有限公司 | A kind of tomato sows earthing equipment integrating |
| CN107466536A (en) * | 2017-10-10 | 2017-12-15 | 长兴丰收园茶叶专业合作社 | A kind of more line-spacing earthing equipment of ginkgo plantation |
| CN208581457U (en) * | 2018-06-16 | 2019-03-08 | 梅园雪 | Crops inter-row sub-soiling shovel weeds machine |
| CN208863137U (en) * | 2018-09-03 | 2019-05-17 | 朱玉红 | A kind of point position formula seeder for agricultural production |
| CN109197123B (en) * | 2018-09-13 | 2021-10-08 | 全椒县汊河农机服务专业合作社 | Ditching device of ploughing and seeding combination machine |
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