CN101401506A - Flax-harvester - Google Patents
Flax-harvester Download PDFInfo
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- CN101401506A CN101401506A CNA200810167241XA CN200810167241A CN101401506A CN 101401506 A CN101401506 A CN 101401506A CN A200810167241X A CNA200810167241X A CN A200810167241XA CN 200810167241 A CN200810167241 A CN 200810167241A CN 101401506 A CN101401506 A CN 101401506A
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- flax
- harvester
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- cutting
- cut
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- 238000005520 cutting process Methods 0.000 claims abstract description 45
- 241000196324 Embryophyta Species 0.000 claims abstract description 44
- 241000208202 Linaceae Species 0.000 claims abstract description 38
- 235000004431 Linum usitatissimum Nutrition 0.000 claims abstract description 38
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 230000033001 locomotion Effects 0.000 claims abstract description 11
- 239000002699 waste material Substances 0.000 claims description 22
- 230000000712 assembly Effects 0.000 claims description 16
- 238000000429 assembly Methods 0.000 claims description 16
- 238000005183 dynamical system Methods 0.000 claims description 14
- 230000003028 elevating effect Effects 0.000 claims description 7
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000000835 fiber Substances 0.000 abstract description 32
- 238000000034 method Methods 0.000 abstract description 7
- 238000012545 processing Methods 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 235000013339 cereals Nutrition 0.000 description 30
- 238000003306 harvesting Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 12
- 239000004753 textile Substances 0.000 description 12
- 240000000491 Corchorus aestuans Species 0.000 description 7
- 235000011777 Corchorus aestuans Nutrition 0.000 description 7
- 235000010862 Corchorus capsularis Nutrition 0.000 description 7
- 239000002184 metal Substances 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 4
- 240000007594 Oryza sativa Species 0.000 description 3
- 235000007164 Oryza sativa Nutrition 0.000 description 3
- 235000009566 rice Nutrition 0.000 description 3
- 244000025254 Cannabis sativa Species 0.000 description 2
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 2
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 2
- 235000009120 camo Nutrition 0.000 description 2
- 235000005607 chanvre indien Nutrition 0.000 description 2
- 239000011487 hemp Substances 0.000 description 2
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007380 fibre production Methods 0.000 description 1
- 238000009432 framing Methods 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
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Abstract
The invention provides a flax reaper, which comprises a machine frame and a power system driving the machine frame to move, wherein a cutting device and a conveying device are arranged in front of the machine frame, the power system drives a dynamic blade of the cutting device through a cutting transmission device to produce horizontal reciprocal motion to cut flax stems to length as required by fibrilia processing. The power system drives the conveying device through a conveying transmission device to convey the cut flax stems the other side of the machine frame. When reaping bast fibre plants, the flax reaper can cut the bast fibre plants to multiple sections according to a required length for transportation and processing, thereby saving the initial procedure of fibrilla processing and improving production efficiency.
Description
Technical field
The present invention relates to a kind of flax-harvester, be particularly suitable for gathering in the contour bar bast fiber crop of jute, and the fiber crops of having gathered in can be cut into the waste of flax of Len req, save the down-stream of processing fiber crops.
Background technology
At present, the crops of China results have realized mechanization basically, reach its maturity as the development of the combining technology of cereal such as wheat, paddy rice, have become the most general harvesting approach of people, have greatly improved harvesting efficiency and have saved manpower.But some special crops are arranged, as fibre of flax for textile material, jute especially, its plant height is at 2.5 meters to 4 meters, and cane is thick and hardness is bigger.And common grain header utilizes the grain lifter plant that cane is soft to push that cutter sweep is other to be cut, and the fibre of flax for textile material not only thick but also hard for cane then is unsuitable for using grain lifter.In addition, the height of the frame of common grain header and conveying plant is lower.So common grain header is unsuitable for gathering in cane not only high not only thick but also hard fibre of flax for textile material, especially jute.Therefore the harvesting of fibre of flax for textile material still mainly relies on manpower at present.Chinese patent literature CN1957654A has introduced a kind of vertical type reaper machine.Its technical scheme is: a kind of machine for harvesting tall stalk crops comprises with grain header mainframe, the power drive system of tractor, the suspension plate elevating mechanism that connects tractor and grain header main frame, cutterbar assembly, seven dental stars wheel, holds up the tooth spring; Power drive system comprises, diesel engine flywheel, V belt, casing assembling, three grades of decelerations, cutter axis, cutter axis gear, eccentric wheel, connecting rod, knife bar assembly, conveying axis gear, idler gear, negative pulley wheel, initiatively belt pulley, the rice-pulling tooth of riveting from movable strap disc, flat belt; It also comprises overhead grain lifter assembly, two layers of frame overhead gage, connects axle, upper pillar stand, the seam of putting on the shelf, high-order belt conveyor riveted.This grain header has overcome and has been cut the defective of crop to machine front and rear direction lodging, forces long-stalked crop to be cut off that the back is moving down in the holder of belt conveyor, erectility is sent outside the main frame.The grain lifter of this grain header is used for the plant that cane is comparatively weak and pulls over that cutter is other to be cut, and both thick hard crudefiber crop cane is unsuitable for pushing by the cutter with grain lifter.And grain lifter can interact with the plant of fiber crops when harvesting, produces the resistance opposite with the grain header direct of travel.Therefore this grain header is unsuitable for gathering in fibre of flax for textile material.And this grain header also just is fit to the crop of harvesting below 2.5 meters, and for the bast fiber crop of height as jute at 2.5 meters to 4 meters, this type grain header can not reach optimum efficiency.In addition, the structure more complicated of grain lifter can make the cost of grain header higher.What is more important, this grain header only can be with plant harvestings, then need other manufacturing procedure to finish for cutting process of harvested plant etc., and operation is various, the cost height.And for the bast fiber crops such as jute up to 4 meters, harvested crop still reaches 3-4 rice, is not easy to very much transportation, handles.
Chinese patent literature CN1754418A discloses a kind of machine that is used to gather in hemp and like fibrous plant, comprise the harvesting plant and they are added first device of machine in the harvesting direction, this machine comprises the device of the plant that transmits harvesting, the plant of harvesting is sent to and gathers in the rectangular discharging direction of direction from the harvesting direction, and meet at right angles direction on the ground with embarking on journey their parallel stackings with the harvesting direction.First harvesting and feeding device comprise a pair of vertical cylinder, are placed in perpendicular on the same plane of gathering in direction, thereby and with the reverse rotation of mutual convergence direction plant are added machine.Cylinder is equipped with upper blade and the lower blade that is used for the excision of the end of plant.This grain header plant to fiber crops in the harvesting fibre of flax for textile material carries out preliminary working, and the end excision that it is useless and the waste of flax of formation equal length have saved this process like this in the process of follow-up processing flaxen fiber.But because this grain header adopts cylinder to cut and transmit stalk, and the quantity of cylinder is restricted, and causes grain header once only can gather in delegation's fibre of flax for textile material, and is also smaller by the stalk amount that cylinder once transmits, so efficient is lower.And for the higher crops such as jute of length, in follow-up process, also need further these wastes of flax to be cut into shorter waste of flax, wait other processing to come unstuck, operation is various, the cost height, and the document do not solve harvested crop yet and still reaches 3-4 rice, is not easy to very much the problem of transporting, handling.
Summary of the invention
For this reason, technical problem to be solved by this invention is to provide a kind of flax-harvester that can be processed into the waste of flax of Len req in the harvesting fibre of flax for textile material.
For solving the problems of the technologies described above, flax-harvester of the present invention comprises: a kind of flax-harvester comprises frame, drives the dynamical system of described gantry motion.Described frame the place ahead is provided with cutter sweep parallel to the ground and conveying plant.With the cutting waste of flax, described dynamical system drives the side that waste of flax after described conveying plant will be cut is transported to described frame by transport equip to described dynamical system by cutting actuator drives described cutter sweep.It is characterized in that: described cutter sweep comprises the roughly cutting assembly of setting parallel to the ground of at least three groups.
Three groups of described cutting assemblies are installed in bottom, middle part and the top of frame respectively.
Described conveying plant comprises many group flexible delivery assemblies, is provided with at least one group of flexible delivery assembly between per two groups of cutting assemblies, and the described cutting assembly top that is in the top also is provided with at least one group of flexible delivery assembly.
Described flexible delivery assembly and and the cutting assembly of its direct neighbor between distance be centimetre to centimetre.
Described flexible delivery assembly comprises the bogie wheel that is arranged at described frame both sides and the flexible band of annular that be arranged in parallel around described bogie wheel and described cutter sweep, described annular flexibility with on be provided with plectrum at a certain distance perpendicular to zone face.
Described flexible delivery component synchronization operation.
Different annular flexibilities with on the arrangement of on same vertical direction, aliging of described plectrum.
Described bogie wheel is a sprocket wheel, and the flexible band of described annular is chain.
Also comprise the elevating mechanism that makes described frame do the vertical lifting motion, described dynamical system drives described elevating mechanism by lifting actuator and moves up and down.
Described frame the place ahead opposite side relative with being cut back waste of flax one side of carrying is provided with nearside divider.
Technique scheme of the present invention has the following advantages compared to existing technology: (1) cutter sweep of the present invention comprises the roughly cutting assembly of setting parallel to the ground of at least three groups, when the cutting assembly that is located at the frame foot cuts down fiber crops, the cutting assembly that is located at central rack and top is finished the preliminary working of producing flaxen fiber with its waste of flax that further is cut into the multistage Len req.This not only is convenient to carry, handle, and also can save down-stream, enhances productivity.(2) the present invention has saved the grain lifter that common grain header adopts, thereby avoids grain lifter and form the resistance opposite with the grain header direct of travel than conflicting mutually between the cane of thicker firmly fibre of flax for textile material.Therefore the present invention is suitable for cutting fibre of flax for textile material, and structure is simpler, has also reduced the cost of grain header simultaneously.(3) every group of cutting assembly of cutter sweep of the present invention is equipped with many group blades, can cut the multirow fibre of flax for textile material simultaneously, therefore can improve the efficient of harvesting.(4) conveying plant of the present invention adopts chain and sprocket wheel, meshes accurate and non-slip.Compare with the band transmission, sprocket wheel and chain drive efficient are higher, and more durable.
Description of drawings
For the easier quilt of content of the present invention is clearly understood, below according to a particular embodiment of the invention and in conjunction with the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is the structural representation of flax-harvester of the present invention;
Fig. 2 is the front view of flax-harvester frame of the present invention;
Fig. 3 is the vertical view of flax-harvester frame of the present invention.
Reference numeral is expressed as among the figure: the 1-frame, and the 2-dynamical system, the 3-cutter sweep, the 30-cutting assembly, 31-cuts transmission device, the 4-conveying plant, 41-transport equip, 42-flexible delivery assembly, 421-bogie wheel, the flexible band of 422-annular, 423-plectrum, 5-elevating mechanism, 6-nearside divider.
Embodiment
As shown in Figure 1, the described flax-harvester of present embodiment, comprise frame 1, drive the dynamical system 2 of described frame 1 motion, described frame 1 the place ahead is provided with cutter sweep roughly parallel to the ground 3 and is arranged at the conveying plant 4 of described cutter sweep 3 tops, described dynamical system 2 drives described cutter sweep 3 by cutting transmission device 31 and makees the multistage waste of flax that horizontal reciprocating movement cuts down waste of flax and be processed into Len req in the flaxen fiber process, and described dynamical system 2 drives described conveying plant 4 by transport equip 41 will be cut the side that the back waste of flax is transported to described frame.Also comprise the elevating mechanism that makes described frame 1 do the vertical lifting motion, described dynamical system 2 drives described elevating mechanism by lifting actuator and moves up and down.
Described cutter sweep 3 comprises three groups of roughly cutting assemblies 30 of setting parallel to the ground, is installed in bottom, middle part and the top of frame 1 respectively.Distance between three groups of cutting assemblies 30 is processed the length setting of required waste of flax according to flaxen fiber, and in the present embodiment, the distance between two groups of adjacent cutting assemblies 30 is 150 centimetres.The cutting assembly 30 that is installed in the frame bottom cuts down the plant of fiber crops under the driving of cutting transmission device 31, the cutting assembly 30 that is installed in frame 1 top simultaneously cuts down the top of unwanted plant in the flaxen fiber production, and the cutting assembly that is installed in frame 1 middle part is cut into fiber crops the waste of flax of Len req in the processing of multistage flaxen fiber.Every group of cutting assembly of described cutter sweep is equipped with many group blades, can cut the multirow fibre of flax for textile material simultaneously, therefore can improve the efficient of harvesting.And flax-harvester can be finished the preliminary working of producing flaxen fiber in the harvesting fiber crops, not only be convenient to carry, and also can save down-stream, enhances productivity.Described cutting assembly comprises guard, ledger-plate and knife section, and guard is fixed on the described frame 1, and ledger-plate is fixed on the inside of described guard, and knife section is connected with cutting transmission device 31 by knife bar.
Conveying plant 4 comprises five groups of flexible delivery assemblies 42 that are set in parallel on the frame 1.Be provided with two groups of flexible delivery assemblies 42 between per two groups of cutting assemblies 30, the flexible delivery assembly is transported to the waste of flax that is cut the opposite side of frame.Two groups of flexible delivery assemblies 42 drive the upper and lower of waste of flax respectively, prevent that it from toppling in the process of transporting.Described cutting assembly 30 tops that are in frame top also are provided with one group of flexible delivery assembly 42, the top of the waste of flax that is cut are transported to the opposite side of frame 1.Described flexible delivery assembly 42 is 15 centimetres with the distance of cutter sweep, like this setting can avoid causing because of distance is too little plectrum run into cutter or distance too big cause to the plant root to gather effect bad, plant easily scatters, and conveying is brought difficulty.The height of described conveying plant 4 is 300 centimetres, compares with common grain header will exceed a lot.This be because, the plant of crudefiber crop is 2.5m-4m than higher as jute, hemp is then higher.
Every group of described flexible delivery assembly 42 comprises the bogie wheel 421 that is arranged at 1 both sides of described machine and is with 422 around described bogie wheel 421 and the annular flexibility that described cutter sweep be arranged in parallel.Bogie wheel 421 is installed in the both sides of frame 1, is connected with transport equip 41.Described bogie wheel 421 and annular flexibility are with 422 to be meshed and to be parallel to ground.The plectrum 423 that is provided with perpendicular to zone face is installed on 422 at a certain distance in described annular flexibility.Article five, annular flexibility is identical with the spacing distance of the plectrum on 422, and the motion of five groups of flexible delivery assemblies 42 is synchronous.Article five, annular flexibility is alignd on same vertical curve all the time with the plectrum 423 on 422, with supporting and drive the waste of flax cut and run to opposite side from a side of frame 1, the direction that head is advanced along tractor is outwardly embarked on journey shakedown on the ground, is convenient to it is bundled.In the present embodiment, annular flexibility is with 422 to adopt chain, and bogie wheel 421 adopts sprocket wheel.Chain and sprocket wheel are meshed non-slip, and transmission is compared with band, and its transmission is more accurate, and efficient is higher, and more durable.
The dynamical system 2 of present embodiment adopts tractor.Power is exported by the tractor driving shaft, slow down through gear-box, finish on the one hand the cutting movement of cutter sweep 4, drive plant that transport equip 41 will cut is transported to frame 1 from a side of frame 1 opposite side on the other hand by cutting transmission device 31.Cutting transmission device 31 comprises power transmission shaft, is fixed on the cam on the power transmission shaft, and cam drives knife bar by connecting rod and does straight reciprocating motion, and the reciprocating motion and the ledger-plate of the knife section on the knife bar match, and cuts off the preceding plant of cutter sweep.Power transmission shaft drives the bogie wheel 421 that is meshed with idler gear and further drives the sprocket shaft rotation, thereby the bogie wheel 421 on the sprocket shaft is rotated synchronously on the other hand by idler gear.Therefore also be synchronous with the annular flexibility of bogie wheel 421 engagements with 422 operation.The annular flexibility is stirred the plant cut and is run to the opposite side of frame 1 from a side of frame 1 with the plectrum 423 on 422, finish the lateral transfer to plant.
In a second embodiment, described flexible delivery assembly 42 is 20 centimetres with the distance of cutter sweep.Described conveying plant 4 is set to three groups of flexible delivery assemblies 42, and one group of top that is arranged on the cutting assembly 30 at frame 1 top wherein is between other two groups of cutting assemblies 30 that are arranged on frame 1 bottom and middle part respectively and between the cutting assembly 30 at middle part and top.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all embodiments.And conspicuous variation of being extended out thus or change still are among the protection domain of the invention.
Claims (10)
1. a flax-harvester comprises frame (1), drives the dynamical system (2) that described frame (1) is moved; Described frame (1) the place ahead is provided with cutter sweep parallel to the ground (3) and conveying plant (4); Described dynamical system (2) drives described cutter sweep (3) with the cutting waste of flax by cutting transmission device (31), and described dynamical system (2) drives the side that waste of flax after described conveying plant (4) will be cut is transported to described frame (1) by transport equip (41); It is characterized in that: described cutter sweep (3) comprises the roughly cutting assembly of setting parallel to the ground (30) of at least three groups.
2. flax-harvester according to claim 1 is characterized in that: three groups of described cutting assemblies (30) are installed in bottom, middle part and the top of frame (1) respectively.
3. flax-harvester according to claim 1, it is characterized in that: described conveying plant (4) comprises many group flexible delivery assemblies (42), be provided with at least one group of flexible delivery assembly (42) between per two groups of cutting assemblies (30), described cutting assembly (30) top that is in the top also is provided with at least one group of flexible delivery assembly (42).
4. flax-harvester according to claim 3 is characterized in that: described flexible delivery assembly (42) and and the cutting assembly (30) of its direct neighbor between distance be 10 centimetres to 30 centimetres.
5. flax-harvester according to claim 3, it is characterized in that: described flexible delivery assembly (42) comprises bogie wheel (421) that is arranged at described frame (1) both sides and the flexible band of annular (422) that be arranged in parallel around described bogie wheel (421) and described cutter sweep (3), is provided with the plectrum (423) perpendicular to zone face on the described flexible band of annular (422) at a certain distance.
6. according to each described flax-harvester among the claim 3-5, it is characterized in that: described flexible delivery assembly (42) synchronous operation.
7. according to each the described flax-harvester among the claim 3-5, it is characterized in that: the arrangement of on same vertical direction, aliging of the described plectrum (423) on the different flexible bands of annular (422).
8. according to each the described flax-harvester among the claim 3-5, it is characterized in that: described bogie wheel (421) is a sprocket wheel, and the described flexible band of annular (422) is a chain.
9. according to each described flax-harvester among the claim 1-5, it is characterized in that: also comprise the elevating mechanism (5) that makes described frame (1) do the vertical lifting motion, described dynamical system (2) drives described elevating mechanism (5) by lifting actuator and moves up and down.
10. according to each described flax-harvester among the claim 1-5, it is characterized in that: described frame (1) the place ahead opposite side relative with being cut back waste of flax one side of carrying is provided with nearside divider (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810167241XA CN101401506B (en) | 2008-10-16 | 2008-10-16 | Flax-harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810167241XA CN101401506B (en) | 2008-10-16 | 2008-10-16 | Flax-harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101401506A true CN101401506A (en) | 2009-04-08 |
| CN101401506B CN101401506B (en) | 2012-06-27 |
Family
ID=40535779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200810167241XA Expired - Fee Related CN101401506B (en) | 2008-10-16 | 2008-10-16 | Flax-harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101401506B (en) |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075507A (en) * | 2015-07-21 | 2015-11-25 | 江苏大学 | Device and method for processing stems and leaves of rope plants in greenhouse after autumn |
| US10524423B1 (en) | 2019-02-19 | 2020-01-07 | Hemp Processing Solutions, LLC | Plant processing system |
| US10751722B1 (en) | 2018-10-24 | 2020-08-25 | Pearson Incorporated | System for processing cannabis crop materials |
| US10757860B1 (en) | 2019-10-31 | 2020-09-01 | Hemp Processing Solutions, LLC | Stripper apparatus crop harvesting system |
| US10785906B2 (en) | 2019-02-19 | 2020-09-29 | Pearson Incorporated | Plant processing system |
| US10933424B1 (en) | 2019-12-11 | 2021-03-02 | Pearson Incorporated | Grinding roll improvements |
| CN114847008A (en) * | 2022-04-20 | 2022-08-05 | 农业农村部南京农业机械化研究所 | Be applied to debugging rope mechanism on industry hemp harvester |
| US11534770B1 (en) | 2017-07-26 | 2022-12-27 | Pearson Incorporated | Systems and methods for step grinding |
| CN116267209A (en) * | 2023-04-14 | 2023-06-23 | 四川省农业机械研究设计院 | Integrated harvesting device for harvesting and threshing ramie |
-
2008
- 2008-10-16 CN CN200810167241XA patent/CN101401506B/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105075507A (en) * | 2015-07-21 | 2015-11-25 | 江苏大学 | Device and method for processing stems and leaves of rope plants in greenhouse after autumn |
| CN105075507B (en) * | 2015-07-21 | 2017-03-01 | 江苏大学 | A kind of device and method processing booth lifting rope plant stem-leaf after autumn |
| US11534770B1 (en) | 2017-07-26 | 2022-12-27 | Pearson Incorporated | Systems and methods for step grinding |
| US10751722B1 (en) | 2018-10-24 | 2020-08-25 | Pearson Incorporated | System for processing cannabis crop materials |
| US10785906B2 (en) | 2019-02-19 | 2020-09-29 | Pearson Incorporated | Plant processing system |
| US10524423B1 (en) | 2019-02-19 | 2020-01-07 | Hemp Processing Solutions, LLC | Plant processing system |
| US10757860B1 (en) | 2019-10-31 | 2020-09-01 | Hemp Processing Solutions, LLC | Stripper apparatus crop harvesting system |
| US11751507B1 (en) | 2019-10-31 | 2023-09-12 | Hemp Processing Solutions, LLC | Crop harvesting system with plant stripping apparatus |
| US10933424B1 (en) | 2019-12-11 | 2021-03-02 | Pearson Incorporated | Grinding roll improvements |
| US11077445B2 (en) | 2019-12-11 | 2021-08-03 | Pearson Incorporated | Grinding roll improvements |
| US11826762B1 (en) | 2019-12-11 | 2023-11-28 | Pearson Incorporated | Grinding roll improvements |
| CN114847008A (en) * | 2022-04-20 | 2022-08-05 | 农业农村部南京农业机械化研究所 | Be applied to debugging rope mechanism on industry hemp harvester |
| CN116267209A (en) * | 2023-04-14 | 2023-06-23 | 四川省农业机械研究设计院 | Integrated harvesting device for harvesting and threshing ramie |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101401506B (en) | 2012-06-27 |
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