CN111247937A - Stem tuber class crop harvester earth screening plant - Google Patents
Stem tuber class crop harvester earth screening plant Download PDFInfo
- Publication number
- CN111247937A CN111247937A CN202010056483.2A CN202010056483A CN111247937A CN 111247937 A CN111247937 A CN 111247937A CN 202010056483 A CN202010056483 A CN 202010056483A CN 111247937 A CN111247937 A CN 111247937A
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- China
- Prior art keywords
- fixedly connected
- mount
- earth
- crop
- crop harvester
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D17/00—Digging machines with sieving and conveying mechanisms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D33/00—Accessories for digging harvesters
- A01D33/08—Special sorting and cleaning mechanisms
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C4/00—Crushing or disintegrating by roller mills
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Harvesting Machines For Root Crops (AREA)
Abstract
The invention relates to the technical field of harvesters and discloses a soil screening device of a harvester for stem crops, which comprises a fixed frame, wherein a motor is arranged on the front surface of the fixed frame, the motor is positioned on the front surface of a left rotating shaft, two rotating shafts are rotatably connected to the inner side of the fixed frame, rotating wheels are welded to the outer sides of the two rotating shafts, a conveying belt is in transmission connection between the outer sides of the two rotating wheels, the conveying belt is a mesh belt, and the conveying belt is in a loose state. This stem tuber class crop harvester earth screening plant distinguishes cylinder and pressure cylinder through the installation on the conveyer belt, during the use, distinguishes the cylinder and presses big or small longitudinal arrangement with the stem tuber crop on the conveyer belt, and the earth crushing of parcel on bold earth or the crop is gone up in rethread pressure cylinder and overcoat cooperation, and the hack mud has fallen through the mesh of conveyer belt, prevents like this that earth from mixing together difficult differentiation with crop parcel and bold earth, influences normal operating, reduces work efficiency.
Description
Technical Field
The invention relates to the technical field of harvesters, in particular to a soil screening device of a harvester for tuber crops.
Background
With the development of science and technology, the productivity of China has soared once, and particularly in the aspect of agriculture, semi-mechanization or even full-mechanization such as various seeders, harvesters and the like is realized nowadays, so that the labor force is effectively liberated, and the working efficiency is improved.
When gathering tuber class crop, dig out the tuber class crop from soil through the harvester earlier, collect it through the manual work, because the fruit of these crops is all buried underground, the crop of digging out in the great soil of humidity like this can be wrapped up by earth, when the later stage is collected, difficult recognition, the soil that perhaps the crop of digging out was thrown up by the harvester covers once more, when the later stage was collected, difficult the seeking, therefore we have provided a tuber class crop harvester earth screening plant.
Disclosure of Invention
In view of the above problems, the invention aims to provide a soil screening device of a stem crop harvester, which has a soil screening function.
The invention adopts the following technical scheme for realizing the technical purpose: the utility model provides a stem crops harvester earth screening plant, includes the mount, the motor is installed in the front of mount, the motor is located the front of left side pivot, the inboard rotation of mount is connected with two pivots, two the outside welding of pivot has the rotation wheel, two the transmission is connected with the transmission band between the outside of rotation wheel, the transmission band is netted area, and the transmission band is lax state, and has good elasticity, left side the back welding of pivot has power gear, power gear and transmission gear intermeshing, power gear are located the back of mount, the back of mount rotates and is connected with transmission gear, and transmission gear's diameter is greater than power gear's diameter.
The inboard of mount and the internally mounted who is located the transmission band have the backing net, the inboard of mount and the internally mounted who is located the transmission band have the fixed axle, the outside of fixed axle is rotated and is connected with a plurality of endothecas, the outside welding of endotheca has the spring, and the quantity of spring has six, and evenly distributed is between endotheca and overcoat, the one end welding that the endotheca was kept away from to the spring has the overcoat.
The inboard top that just is located the transmission band of mount rotates and is connected with two dwangs, the high difference of two dwangs, two the outside of dwang has welded respectively and has distinguished cylinder and pressure drum, it tapers from back to front to distinguish cylinder and pressure drum, the back welding of dwang has the linkage wheel, and the diameter of linkage wheel is the same with the diameter of transmission gear, transmission gear and left side linkage wheel between and two linkage wheels between equal transmission are connected with the belt.
The inboard of mount just is located pressure cylinder's right side fixedly connected with material receiving disc, material receiving disc's left side is provided with the inclined plane, material receiving disc is located the upper surface of transmission band, and keeps the certain distance with the transmission band, two unloading pipes of material receiving disc's right side fixedly connected with, the bottom of unloading pipe is provided with the fault, the inboard of mount just is located the left side swing joint who distinguishes the cylinder and has the guide pole, the guide pole slopes right, and the guide pole passes through the movable rod to be connected with the mount, installs the torsional spring between guide pole and the movable rod.
And as optimization, the rotating shaft on the left side penetrates through the fixed frame to be connected with an output shaft of the motor, and the outer side of the rotating wheel is provided with a convex hull corresponding to meshes of the transmission belt.
Preferably, the fixing mat net is positioned below the distinguishing roller and is in a tightening state, and the fixing shaft is positioned below the pressure roller.
Preferably, the horizontal height of the left rotating rod is higher than that of the right rotating rod, and the length of the spring is equal to the height difference between the two rotating rods.
The invention has the following beneficial effects:
1. this stem tuber class crop harvester earth screening plant distinguishes cylinder and pressure cylinder through the installation on the conveyer belt, during the use, distinguishes the cylinder and presses big or small longitudinal arrangement with the stem tuber crop on the conveyer belt, and the rethread pressure cylinder cooperates the earth crushing of parcel on with bold earth or crop, and the hack mud drops through the mesh of conveyer belt, prevents like this that earth from mixing together crop parcel and bold earth difficult differentiation, influences normal operation, reduces work efficiency.
2. This stem tuber class crop harvester earth screening plant, through the discharge tube of installation on the right side of material collecting tray, during the use, the transmission band transports the crop to the material collecting tray in, the discharge of large size crop from positive discharge tube, the discharge of small size crop from back discharge tube, the crop rolls in the discharge tube and receives inertial action to skip the fault, discharge from the export, and get into the garrulous mud in the discharge tube together with the crop, from the fault landing, with crop and earth separation like this, the manual work collection has been made things convenient for, and work efficiency is improved.
3. This stem and tuber class crop harvester earth screening plant is through rotating taking turns to be provided with the convex closure corresponding with the mesh on the transmission band, during the use, rotates the wheel and drives the transmission band rotation, and the convex closure in the outside runs through the mesh on the transmission band, and the debris that will block up in the mesh is ejecting, prevents like this that the mesh is blocked up on the transmission band, influences the sieve mud effect of transmission band.
Drawings
FIG. 1 is a front sectional view of a soil screening device of a tuber crop harvester according to the present invention.
FIG. 2 is a schematic view of a rotating wheel of the soil screening device structure of the tuber crop harvester of the invention.
FIG. 3 is a top view of the soil screening device of the harvester for stalk type crops.
FIG. 4 is an enlarged view of the soil screening device of the stem and tuber crop harvester at the position A in the structure diagram 3.
FIG. 5 is a schematic view of a discharging pipe of the soil screening device structure of the harvester for stem-tuber crops.
FIG. 6 is a front sectional view of the structural outer sleeve of the soil screening device of the tuber crop harvester of the invention.
FIG. 7 is a side sectional view of the structure of the soil screening device of the tuber crop harvester of the present invention.
FIG. 8 is a side view of the soil screening device of the tuber crop harvester of the present invention.
FIG. 9 is a side view of the pressure drum of the soil screening device structure of the harvester for stem and tuber crops of the present invention.
In the figure: 1-a fixed frame, 2-a motor, 3-a rotating shaft, 4-a rotating wheel, 5-a conveying belt, 6-a power gear, 7-a cushion net, 8-a fixed shaft, 9-an inner sleeve, 10-a spring, 11-an outer sleeve, 12-a rotating rod, 13-a distinguishing roller, 14-a pressure roller, 15-a linkage wheel, 16-a belt, 17-a material receiving disc, 18-a discharging pipe, 19-a material guiding rod and 20-a conveying gear.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Please refer to fig. 1-9: the utility model provides a tuber class crop harvester earth screening plant, includes mount 1, and mount 1 is the steel sheet of two parallels, and motor 2 is installed in the front of mount 1, and motor 2's model is CD1, performance parameter: the device has the advantages that the voltage is three hundred eighty, the power is one thousand, five or hundred watts, the frequency is fifty hertz, the motor 2 is positioned on the front surface of the left rotating shaft 3, the inner side of the fixed frame 1 is rotatably connected with the two rotating shafts 3, the left rotating shaft 3 penetrates through the fixed frame 1 to be connected with the output shaft of the motor 2, the outer sides of the two rotating shafts 3 are welded with the rotating wheels 4, the outer sides of the rotating wheels 4 are provided with convex bags corresponding to meshes of the transmission belt 5, when in use, the rotating wheels 4 drive the transmission belt 5 to rotate, the convex bags on the outer sides of the rotating wheels 4 penetrate through the meshes of the transmission belt 5 to eject sundries blocked in the meshes, so that the meshes of the transmission belt 5 are prevented from being blocked and the mud screening effect of the transmission belt 5 is influenced, the transmission belt 5 is in transmission connection between the outer sides of the two rotating wheels 4, the transmission belt 5 is a, the power gear 6 is meshed with the transmission gear 20, the power gear 6 is located on the back of the fixing frame 1, the transmission gear 20 is rotatably connected to the back of the fixing frame 1, and the diameter of the power gear 6 is four times of that of the transmission gear 20, so that the transmission speeds of the distinguishing roller 13 and the transmission belt 5 are different.
A pad net 7 is arranged at the inner side of the fixed mount 1 and inside the transmission belt 5, the fixed pad net 7 is arranged below the distinguishing roller 13, and is in a tense state, so as to prevent the transmission belt 5 from deforming when being pressed and influence the distinguishing effect, a fixed shaft 8 is arranged at the inner side of the fixed frame 1 and inside the transmission belt 5, the fixed shaft 8 is arranged below the pressure roller 14, a plurality of inner sleeves 9 are rotatably connected at the outer side of the fixed shaft 8, springs 10 are welded at the outer side of the inner sleeves 9, the springs 10 improve the buffer force for the outer sleeve 11, matched with the pressure roller 14 to extrude crops and large soil blocks, the length of the spring 10 is the same as the height difference between the two rotating rods 12, the number of the springs 10 is six, the springs are evenly distributed between the inner sleeve 9 and the outer sleeve 11, the outer sleeve 11 is welded at one end, far away from the inner sleeve 9, of each spring 10, the number of the outer sleeves 11 is not less than six, and the outer sleeves 11 are not affected with each other.
The inboard of mount 1 and the top that is located transmission band 5 rotate and be connected with two dwang 12, the level of left side dwang 12 is higher than the level of right side dwang 12, the outside of two dwang 12 has welded respectively and has distinguished cylinder 13 and pressure drum 14, the diameter of distinguishing cylinder 13 and pressure drum 14 diminishes from the back to the front gradually, be used for distinguishing the crop size, the back welding of dwang 12 has linkage wheel 15, the diameter of linkage wheel 15 is the same with transmission gear 20's diameter, the ring channel corresponding with belt 16 has all been seted up in the outside of linkage wheel 15 and transmission gear 20, equal transmission is connected with belt 16 between transmission gear 20 and the left side linkage wheel 15 and between two linkage wheels 15.
A material receiving disc 17 is fixedly connected to the inner side of the fixing frame 1 and the right side of the pressure roller 14, an inclined plane is arranged on the left side of the material receiving disc 17, the material receiving disc 17 is arranged on the upper surface of the conveying belt 5 and keeps a certain distance with the conveying belt 5, a partition board is arranged in the material receiving disc 17 and divides the material receiving disc 17 into two sections which are respectively connected with two discharging tubes 18, the two discharging tubes 18 respectively extend to the front side and the back side of the fixing frame 1, so that large-size crops enter the front discharging tube 18 from the front side section of the material receiving disc 17, small-size crops enter the back discharging tube 18 from the back side section of the material receiving disc 17 and are transmitted to the two sides of the harvester for collection, a fault is arranged at the bottom of the discharging tube 18, the fault width in the front discharging tube 18 is larger than that in the back discharging tube 18, a material guide rod 19 is movably connected to, the guide rod 19 inclines rightwards, the guide rod 19 is connected with the fixed frame 1 through the movable rod, a torsion spring is installed between the guide rod 19 and the movable rod, crops are guided to the position where the diameter of the roller 13 is the largest, and the roller 13 is convenient to distinguish and classify the crops according to size.
The motor 2 drives the rotating wheel 4 to rotate clockwise through the rotating shaft 3, the rotating wheel 4 drives the transmission belt 5 to move rightwards, the rotating shaft 3 drives the transmission gear 20 to rotate anticlockwise through the power gear 6 due to the fact that the power gear 6 is meshed with the transmission gear 20, the transmission gear 20 drives the left linkage wheel 15 to rotate anticlockwise through the belt 16, the left linkage wheel 15 drives the right linkage wheel 15 to rotate anticlockwise through the belt 16, and the two linkage wheels 15 respectively drive the distinguishing roller 13 and the pressure roller 14 to rotate anticlockwise through the two rotating rods 12.
When the harvester is used, crops and soil are conveyed onto the conveying belt 5 by the digging device of the harvester, are conveyed rightwards by the conveying belt 5 and are guided to the position with the largest diameter of the distinguishing roller 13 through the material guide rod 19, so that the small-size crops penetrate through the bottom of the distinguishing roller 13, the large-size crops move forwards along the distinguishing roller 13 until the large-size crops and the large soil penetrate through the bottom of the distinguishing roller 13 due to the fact that the cushion net 7 below the distinguishing roller 13 cannot buffer downwards, and the crops and the large soil are longitudinally arranged on the conveying belt 5 according to the size.
When crops and soil move to the position below the pressure roller 14 through the conveying belt 5, because the height of the pressure roller 14 is lower than that of the distinguishing roller 13, when the distinguished crops and soil pass through the bottom of the crops and soil, the crops and soil are pressed by the pressure roller 14 to deform the conveying belt 5 and fall onto the outer sleeve 11, the outer sleeve 11 is pressed to enable the internal spring 10 of the outer sleeve 11 to contract, because the soil in the cultivated land is softer and has far lower hardness than the crops, the normal crops press the outer sleeve 11 to pass below the pressure roller 14, and massive soil or soil wrapped on the outer side of the crops is crushed by the outer sleeve 11 and the pressure roller 14 and falls out of meshes of the conveying belt 5.
The crops and residual fine soil are conveyed into the material receiving plate 17 by the conveying belt 5, then slide into the discharging pipe 18 and slide out along the inclined discharging pipe 18, the larger the mass is, the larger the inertia is, the crops jump over a fault under the influence of inertia in the sliding-out process and slide out from an outlet, and the fine soil is small in mass, small in inertia and capable of sliding off from the fault.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a tuber class crop harvester earth screening plant, includes mount (1), its characterized in that: the utility model discloses a fixing rack for the automobile seat, including mount (1), front fixedly connected with motor (2), the inboard swing joint of mount (1) has two pivot (3), two the outside fixedly connected with of pivot (3) rotates wheel (4), two swing joint has transmission band (5) between the outside of rotating wheel (4), left side the back fixedly connected with power gear (6) of pivot (3), the back swing joint of mount (1) has transmission gear (20), the inboard of mount (1) just is located the inside fixedly connected with backing net (7) of transmission band (5), the inboard of mount (1) just is located the inside fixedly connected with fixed axle (8) of transmission band (5), the outside swing joint of fixed axle (8) has endotheca (9), the outside fixedly connected with spring (10) of endotheca (9), one end of the spring (10) far away from the inner sleeve (9) is fixedly connected with an outer sleeve (11), two rotating rods (12) are movably connected to the inner side of the fixing frame (1) and above the conveying belt (5), a distinguishing roller (13) and a pressure roller (14) are respectively and fixedly connected to the outer sides of the two rotating rods (12), the back of the rotating rod (12) is fixedly connected with a linkage wheel (15), belts (16) are movably connected between the transmission gear (20) and the left linkage wheel (15) and between the two linkage wheels (15), a material receiving disc (17) is fixedly connected with the inner side of the fixed frame (1) and positioned at the right side of the pressure roller (14), two blanking pipes (18) are fixedly connected with the right side of the material receiving plate (17), the inner side of the fixed frame (1) and the left side of the distinguishing roller (13) are movably connected with a material guiding rod (19).
2. The stalk crop harvester soil screening device of claim 1, wherein: the left side pivot (3) run through mount (1) and link to each other with the output shaft of motor (2), the outside of rotating wheel (4) is provided with the convex closure corresponding with transmission band (5) mesh.
3. The stalk crop harvester soil screening device of claim 1, wherein: the transmission band (5) is a mesh-shaped band, the transmission band (5) is in a loose state and has good elasticity, and the power gear (6) is located on the back face of the fixing frame (1).
4. The stalk crop harvester soil screening device of claim 1, wherein: the fixed pad net (7) is positioned below the distinguishing roller (13) and is in a tightening state, and the fixed shaft (8) is positioned below the pressure roller (14).
5. The stalk crop harvester soil screening device of claim 1, wherein: the guide rod (19) inclines rightwards, the guide rod (19) is connected with the fixed frame (1) through the movable rod, and a torsion spring is installed between the guide rod (19) and the movable rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056483.2A CN111247937A (en) | 2020-01-18 | 2020-01-18 | Stem tuber class crop harvester earth screening plant |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010056483.2A CN111247937A (en) | 2020-01-18 | 2020-01-18 | Stem tuber class crop harvester earth screening plant |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111247937A true CN111247937A (en) | 2020-06-09 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010056483.2A Withdrawn CN111247937A (en) | 2020-01-18 | 2020-01-18 | Stem tuber class crop harvester earth screening plant |
Country Status (1)
| Country | Link |
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| CN (1) | CN111247937A (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB846075A (en) * | 1959-02-27 | 1960-08-24 | Int Harvester Co | Improvements in or relating to crop crushing apparatus |
| SU540596A1 (en) * | 1973-07-16 | 1976-12-30 | Литовский Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства | Kombnaya klubnekornevoborochnoy machine |
| DE19804147A1 (en) * | 1997-02-05 | 1998-08-06 | Peter Lieske | Crop grading machine e.g. for potatoes |
| US20070000823A1 (en) * | 2005-06-17 | 2007-01-04 | George Mendenhall | Potato sorting apparatus |
| CN201669228U (en) * | 2010-04-21 | 2010-12-15 | 宋永彪 | Rolling shaft size grader |
| CN202697245U (en) * | 2012-07-09 | 2013-01-30 | 李春盛 | Rear soil crushing device of peanut harvester |
| CN203120453U (en) * | 2012-12-23 | 2013-08-14 | 齐齐哈尔大学 | Tuberous type crop harvester |
| CN204069747U (en) * | 2014-10-29 | 2015-01-07 | 弥渡县红岩镇彩云农田作业农民专业合作社 | A kind of soil crushing device of potato harvester |
| CN104399550A (en) * | 2014-11-25 | 2015-03-11 | 上海建冶路桥机器设备有限公司 | Stepless gear roller set and stepless gear roller crusher |
| CN104509271A (en) * | 2013-09-29 | 2015-04-15 | 王荣 | Long chain soil pulverization type root-tuber crop harvester |
| CN205284158U (en) * | 2016-01-21 | 2016-06-08 | 徐恒征 | Peanut harvester |
| CN108156928A (en) * | 2017-12-30 | 2018-06-15 | 姜向军 | A kind of root crop root soil separator |
| CN207802773U (en) * | 2018-01-11 | 2018-09-04 | 酒泉华创戈壁农业科技有限公司 | A kind of onion harvester for protecting onion |
-
2020
- 2020-01-18 CN CN202010056483.2A patent/CN111247937A/en not_active Withdrawn
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB846075A (en) * | 1959-02-27 | 1960-08-24 | Int Harvester Co | Improvements in or relating to crop crushing apparatus |
| SU540596A1 (en) * | 1973-07-16 | 1976-12-30 | Литовский Научно-Исследовательский Институт Механизации И Электрификации Сельского Хозяйства | Kombnaya klubnekornevoborochnoy machine |
| DE19804147A1 (en) * | 1997-02-05 | 1998-08-06 | Peter Lieske | Crop grading machine e.g. for potatoes |
| US20070000823A1 (en) * | 2005-06-17 | 2007-01-04 | George Mendenhall | Potato sorting apparatus |
| CN201669228U (en) * | 2010-04-21 | 2010-12-15 | 宋永彪 | Rolling shaft size grader |
| CN202697245U (en) * | 2012-07-09 | 2013-01-30 | 李春盛 | Rear soil crushing device of peanut harvester |
| CN203120453U (en) * | 2012-12-23 | 2013-08-14 | 齐齐哈尔大学 | Tuberous type crop harvester |
| CN104509271A (en) * | 2013-09-29 | 2015-04-15 | 王荣 | Long chain soil pulverization type root-tuber crop harvester |
| CN204069747U (en) * | 2014-10-29 | 2015-01-07 | 弥渡县红岩镇彩云农田作业农民专业合作社 | A kind of soil crushing device of potato harvester |
| CN104399550A (en) * | 2014-11-25 | 2015-03-11 | 上海建冶路桥机器设备有限公司 | Stepless gear roller set and stepless gear roller crusher |
| CN205284158U (en) * | 2016-01-21 | 2016-06-08 | 徐恒征 | Peanut harvester |
| CN108156928A (en) * | 2017-12-30 | 2018-06-15 | 姜向军 | A kind of root crop root soil separator |
| CN207802773U (en) * | 2018-01-11 | 2018-09-04 | 酒泉华创戈壁农业科技有限公司 | A kind of onion harvester for protecting onion |
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Application publication date: 20200609 |
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