CN107396700A - A kind of millet combined harvester sheller unit - Google Patents
A kind of millet combined harvester sheller unit Download PDFInfo
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- CN107396700A CN107396700A CN201710706657.3A CN201710706657A CN107396700A CN 107396700 A CN107396700 A CN 107396700A CN 201710706657 A CN201710706657 A CN 201710706657A CN 107396700 A CN107396700 A CN 107396700A
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- threshing
- tooth
- sheller unit
- combined harvester
- bar
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/18—Threshing devices
- A01F12/22—Threshing cylinders with teeth
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- Threshing Machine Elements (AREA)
Abstract
A kind of millet combined harvester sheller unit, belongs to crop harvesting technical field.A kind of millet of the present invention includes threshing cylinder, the threshing cylinder top cover above threshing cylinder, the grid concave plate below threshing cylinder, and threshing cylinder includes cylinder after closed taper placket and open type；Cylinder includes the drum shaft coaxially connected with closed taper placket, the width disk for being connected to drum shaft both ends, the circumferential multiple threshing toothed bars for being distributed in the drum shaft and being connected on width disk after open type；Part threshing toothed bar and every threshing toothed bar in multiple threshing toothed bars are provided with a rasp bar ratch and multiple Lysimachia sikokiana teeth, and part threshing toothed bar and every threshing toothed bar are provided with a combination ratch and multiple Lysimachia sikokiana teeth；The combination ratch is alternateed to be spaced by multiple threshing tooths and multiple arcs elastic claw to be formed.Millet combined harvester sheller unit of the present invention, it is simple in construction, based on rubbing and roll, there is necessarily thin brush function, effectively reduce and sieved with the paste of green stalk and blade.
Description
Technical field
The present invention relates to crop harvesting technical field, more particularly to a kind of millet combined harvester sheller unit.
Background technology
In recent years, coarse cereals consumption demand is significantly increased with the popularization and market of domestic high-quality hybrid millet, millet
Production starts to be able to pay attention to and expand, and the Production Gain and plantation enthusiasm of peasant also greatly improve.However, millet is influenceed at present
Production maximum " bottleneck " surely belongs to harvest.
Millet belongs to small crop, and the green maturation of stalk band, grain ear hangs low, seed is small, grain is light, paddy code and stalk separation during harvest
Difficulty, seed are not easy to purify, and entrainment is high with cleaning loss percentage, damage the problems such as serious and protrude.
At present, seen that the type for millet harvest there are three kinds, a kind of is the shoe using single longitudinal axial flow ratch roller shattering
Band machine, a kind of is the tracked machine using double transverse-axis-flow drum with rasp bars shattering, and another kind is using single crosscutting flow liner rod drum threshing
Wheeled machine.The former, using single longitudinal axial flow ratch roller, threshability is strong, the threshing time length, you can with harvest rice, wheat,
Rape, it can also suitably change the means such as roller or notch board parameter according to received agrotype to harvest soybean, Semen Coicis, millet etc.
Seed class crop, extremely well-adapted, belong to " omnipotent " threshing system.But unfortunately hitting power kneading force greatly in threshing course
Small, its powerful impact force is not only difficult to control percentage of damage, is also also easy to produce a large amount of crushing straws and cleans what is brought together to lower
Load increases.Secondly, using double transverse-axis-flow drum with rasp bars, as a result of two total length drums with rasp bars, its powerful rubbing rate
The shell of millet can be destroyed with long-time screw formula threshing and easily makes percentage of damage index exceeding standard, and the structure is equally also not suitable with
Harvest rice.The latter, though also using the very strong full rasp bar threshing of kneading force, single crosscutting stream mode to the crop threshing time very
Short, stalk is more complete after taking off, and fringe rate of breaking is low, is advantageous to subsequent treatment.It is disadvantageous that because its impact capacity is relatively weak,
The threshing time is again short, and threshing performance is general, is not suitable for the difficult de- crop of harvest rice etc., when feeding that uneven, cereal humidity is larger,
Threshing quality is decreased obviously, and adaptability is low, is unfavorable for a tractor serves several purposes.It is therefore only small to harvest less than 4 meters in working width at present
Still there is utilization in wheeled type based on wheat, soybean, and require that loss late higher or the difficult de- crop of harvest type is gradual
Substituted by double or three crosscutting stream rollers, single longitudinal axial flow drum with rasp bars.It is general in the large scale computer of American-European 6 meters and above working width
All over using double longitudinal axial flow drums with rasp bars.
The first patent of invention ZL2015105537826 of applicant discloses a kind of millet combined harvester and its threshing and cleaning
Device and threshing and cleaning system, and specifically disclose threshing cleaning unit and include threshing separation unit, the threshing separation unit includes
Threshing casing, preceding threshing cylinder, rear threshing roller, preceding bolter, rear bolter, transition bolter, preceding threshing head cover, rear threshing
Top cover and the transmission mechanism that power is provided for the preceding threshing cylinder and the rear threshing roller.The preceding threshing cylinder and
The rear threshing roller accumbency separates between the two in the threshing box body, the preceding threshing cylinder and the rear threshing
Handing-over mouth E is provided between roller；The preceding bolter is located at the underface of the preceding threshing cylinder and is wrapped in the preceding threshing outside
Roller；Bolter is located at the underface of the rear threshing roller and is partly wrapped in the rear threshing roller close to described preceding de- after described
The leading portion of grain roller；The front side of the transition bolter is docked with the rear side of the preceding bolter, after the transition bolter
Docked with the feeding mouth F of the rear bolter side；The preceding threshing head cover is arranged on the preceding threshing cylinder, the rear threshing
Top cover is arranged on the rear threshing roller.
Threshing separation unit in the threshing cleaning unit be arranged with parallel before and after using two nested structures are different, length is different,
The different threshing system of parameter, preceding threshing system use the axial threshing principle of hemisection stream half, with rubbing for chief commander's paddy code rub it is broken；Afterwards
Threshing system uses full axial threshing principle, further rubbing paddy code while, impact remnants the paddy code not yet purified with
Thoroughly seed is set to be separated from paddy code.But green stalk, the blade easily paste that makes moist are sieved on notch board when actually rubbing rolls, this
Sample seed is not easy to purify.It is insufficient due to rubbing the time in single threshing cylinder, even with the common of two threshing cylinders
Kneading action, because the threshing principle of each threshing cylinder is different, also fail to effectively solve above-mentioned paste sieve problem.
In addition, existing transverse-axis-flow Combined harvester concave plate uses the monoblock type notch board structure of 220 degree of -270 degree, and first Shen
Notch board please（With reference to earlier application Figure of description 24,26）Using monoblock type notch board structure, wherein preceding grating and preceding steel wire structure
Into notch board radian be 270 degree, rear grating is different in front and rear section from the notch board radian that rear steel wire is formed, to adapt to front and rear threshing system
The threshing principle for uniting different.But monoblock type notch board structure must tear roller open when dismounting, dismounting is not convenient, and with usage time
Different degrees of abrasion is presented in diverse location for longer notch board structure, then needs to change whole notch board, maintenance cost is high.
The content of the invention
The problem of present invention exists for prior art, it is proposed that a kind of threshing time is long, separating area is big, reduces with green
The paste sieve of stalk and blade, dismount millet combined harvester sheller unit convenient, that maintenance cost is low.
The technical scheme is that：
A kind of millet combined harvester sheller unit, including threshing cylinder, the threshing cylinder top cover above threshing cylinder, set
Grid concave plate below threshing cylinder, the threshing cylinder include cylinder after closed taper placket and open type；After the open type
Cylinder include the drum shaft coaxially connected with closed taper placket, the width disk for being connected to drum shaft both ends, it is circumferential be distributed in it is described
Drum shaft and it is connected to multiple threshing toothed bars on width disk；Part threshing toothed bar and every threshing toothed bar in multiple threshing toothed bars
It is provided with a rasp bar ratch and multiple Lysimachia sikokiana teeth, and part threshing toothed bar and every threshing toothed bar are provided with a combination tooth
Bar and multiple Lysimachia sikokiana teeth；The combination ratch is alternateed to be spaced by multiple threshing tooths and multiple arcs elastic claw to be formed.
The invention millet combined harvester sheller unit is using the threshing toothed bar with rasp bar ratch and combination ratch come real
Existing threshing, the rubbing powerful to paddy code was both kept and had rolled ability, had again to pasting the stalk on sheller unit, blade is dredged
The ability of brush, seed threshing performance is improved, reduce entrainment loss rate.Meanwhile enter one through too small mesh-structured grid concave plate
Step sieving, hinders empty, the lower leakage of capes code, reduces millet combined harvester and cleans difficulty in next step.
Preferably, the crown of the rasp bar tooth on the rasp bar ratch, with the Lysimachia sikokiana on the threshing toothed bar provided with rasp bar tooth
The crown of tooth is located at sustained height；The crown of the threshing tooth and the crown of rasp bar tooth be located at sustained height, and also with provided with taking off
The crown of Lysimachia sikokiana tooth on the threshing toothed bar of grain tooth is located at sustained height；The height of the arc elastic claw peak is de- higher than described
The height of grain tooth crown.
Preferably, the Lysimachia sikokiana tooth on the rasp bar tooth or threshing toothed bar provided with rasp bar tooth or the threshing provided with threshing tooth
The gap between Lysimachia sikokiana tooth or the threshing tooth and the notch board on ratch is not more than 10 millimeters.
Preferably, the gap between the arc elastic claw and the notch board is not less than 2 millimeters and no more than 5 millimeters.
Preferably, the height of the arc elastic claw peak and the difference in height of the threshing tooth crown are not less than 5 millis
Rice and no more than 7 millimeters.
Preferably, the notch board uses the symmetrical tile segmented grid concave plate of 180 degree.
Preferably, pitch-row is equal between grid on the notch board.
Preferably, pitch-row is not less than 6 millimeters and no more than 8 millimeters between described.
Preferably, the notch board includes the grating along notch board radian direction arrangement and the horizontal stroke along concave length direction arrangement
Bar；The distance d that the horizontal stripe is higher by the grating is not less than 6 millimeters and no more than 7 millimeters.
Preferably, the threshing toothed bar has 6, wherein 4 threshing toothed bars and every threshing toothed bar is provided with a line
Bar ratch and multiple Lysimachia sikokiana teeth, 2 threshing toothed bars and every threshing toothed bar are provided with a combination ratch and multiple Lysimachia sikokiana teeth.
Preferably, the arc convex portion on the arc elastic claw is consistent towards the direction rotated with threshing cylinder.
Preferably, the length of the rasp bar ratch is at least 2/3rds of the threshing toothed bar length.
Preferably, the threshing tooth and the Lysimachia sikokiana tooth are finger-like tooth.
Preferably, the diameter of the threshing cylinder is not less than 600 millimeters and no more than 640 millimeters.
The invention has the advantages that：
A kind of millet combined harvester sheller unit of the present invention, it is simple in construction, it is easy to dismount, fully rubs, be not easy paste sieve, prevent
What capes code more than whole paddy code and half fell into combined harvester cleans portion.
Brief description of the drawings
Fig. 1 is a kind of axial sectional view of millet combined harvester sheller unit of the present invention；
Fig. 2 is the shaft side figure of threshing cylinder in a kind of millet combined harvester sheller unit of the present invention；
Fig. 3 a are the enlarged drawing of A in Fig. 2；
Fig. 3 b are the enlarged drawing of B in Fig. 2；
Fig. 4 is the exploded view of notch board in a kind of millet combined harvester sheller unit of the present invention；
Fig. 5 pitch-row schematic diagrames between notch board in a kind of millet combined harvester sheller unit of the present invention；
Fig. 6 is for notch board intrados in a kind of millet combined harvester sheller unit of the present invention with threshing tooth apex distance from schematic diagram.
Embodiment
It is the specific embodiment of the present invention and with reference to accompanying drawing below, technical scheme is further described,
But the present invention is not limited to these embodiments.
Because millet belongs to small crop, relative to wheat, rice, corn, quality grain is small, and mass of 1000 kernel only has 2.4-3.5g,
And having bar stem among grain ear, it produces one-level branch above, produces two level branch, three-level branch again in one-level branch, often
One-level branch is a small code, there is many seeds, some up to two or three hundred, according to traditional full-feeding combine harvester above
Sheller unit certain modification into during threshing, paddy code and stalk can be caused to be not readily separated, seed is not easy to purify, damages big, entrainment
The significant deficiencies such as cleaning loss percentage height.There are the characteristics of stalk band is green ripe, moisture is big, threshing during along with summer millet maturation
Cheng Zhong, together with stalk, blade, capes code are adhered with seed, separation is difficult.If notch board structure, with crown distance design do not conform to
Suitable, not only threshing performance reduces, and will also produce a large amount of capes codes increases into cleaning and sorting system and clean difficulty.In addition, millet and rice
Equally, outer layer has one layer of shell, according to strength threshing, it is easy to and it is hit in threshing course and is broken into millet, percentage of damage
Height is that seed easy damaged is also a very intractable thing.Not only storage is easily gone mouldy, if being harvested for seed, is emerged
Rate, germination percentage can be greatly affected.
First patent of invention ZL2015105537826 " a kind of millet combined harvester and its threshing cleaning unit and threshing
Cleaning and sorting system " fails to overcome above mentioned problem.The invention uses the rear threshing of preceding threshing cylinder and the holoaxial stream of hemisection stream semiaxis stream
Roller, paddy code can be rubbed to a certain degree it is broken, but can not avoid paste sieve.In addition, formerly patent of invention is using non-holoaxial stream
The threshing portion that two threshing cylinders are formed, its hitting power are weaker than the millet harvest-seed extraction roller for single longitudinal axial flow；Two threshings
Effective threshing stroke that roller adds up falls short of.The notch board of first patent of invention is monoblock type, not easy to assemble.
Therefore, the present invention provides a kind of millet combined harvester sheller unit, such as Fig. 1, the device includes threshing cylinder
100th, the threshing cylinder top cover above threshing cylinder 100（Not shown in figure）, the grid located at the lower section of threshing cylinder 100 it is recessed
Plate 5.The threshing cylinder 100 includes cylinder 20 after closed taper placket 10 and open type.The roller is as great diameter and long roller
For single longitudinally axial flow threshing, for the diameter of the roller not less than 600 millimeters and no more than 650 millimeters, its cylinder sizes is φ 600
×2000mm-φ650×2000mm.And a diameter of 540 millimeters of the preceding threshing cylinder and rear threshing roller of first patent of invention,
And preceding threshing cylinder size is 540 × 600mm of φ, rear threshing roller size is 540 × 1200mm of φ.It can be seen that the present invention is significantly
Threshing time, increase separating area are extended, overcomes the problem of single longitudinal axial flow ratch roller kneading force is small, while employ list
The big advantage of longitudinal axial flow ratch roller hitting power, and it is better than first patent of invention in threshing timeliness and area, further improve
Millet purifies efficiency.
It is provided with the threshing cylinder top cover and leads careless muscle.Crop is cooked backward after entering roller in the case where top cover leads the guiding of careless muscle
Screw, roller least significant end also extend to the rearmost end of millet cropper for Lysimachia sikokiana end, and Lysimachia sikokiana uses nature falling type.
Fig. 2 shows the structure chart of threshing cylinder.
The closed taper placket 10 is located at the front end of the millet harvest-seed extraction roller, and it carries 2 or 3 helical-blades
The closed conically shaped of piece.
Cylinder 20 includes drum shaft 201, width disk 202, multiple threshing toothed bars after the open type.The drum shaft and the closing
Formula taper placket 10 is coaxially connected, when millet harvest-seed extraction roller rotates, the closed taper placket 10 and cylinder 20 after open type
Rotate coaxially.Cylinder 20 is cylindrical open type roller after the open type, and the visible directions of drum shaft 201 or so of Fig. 2 are arranged in
Cylinder 20 after the open type, the key connection of width disk 202 is in the both sides of drum shaft 201, and multiple threshing toothed bar axles are in the roller
The circumference of axle 201 is uniform and is connected on the width disk 202.
Multiple threshing toothed bars have the threshing toothed bar of two kinds of different structures, are set on each rooted tooth bar of which part threshing toothed bar
There are a rasp bar ratch 1 and multiple Lysimachia sikokiana teeth 4, the rasp bar ratch 1 is secured by bolts in the leading portion of the threshing toothed bar, is
Improve rubbing and roll dynamics, paddy code is rubbed from stem stalk and take off and seed is separated from paddy code, it is described
The length of rasp bar ratch 1 is at least 2/3rds of the threshing toothed bar length.In the threshing toothed bar back segment where rasp bar ratch
For Lysimachia sikokiana section, the section is provided with multiple Lysimachia sikokiana teeth 4, and the arranged at equal intervals of Lysimachia sikokiana tooth 4 are consolidated on threshing toothed bar with welding manner
It is fixed.Wherein, the threshing toothed bar body provided with rasp bar ratch 1 is won in succession by ratch, the downward projection of ratch in ratch both sides, projected upwards
Support base form.
Each rooted tooth bar of which part threshing toothed bar is provided with a combination ratch and multiple Lysimachia sikokiana teeth 4.The combination
Ratch is alternateed to be spaced and formed by multiple threshing tooths 3 and multiple arcs elastic claw 2.It is described combination ratch threshing tooth 3 with
The Combination Welding of arc elastic claw 2 is in the leading portion of threshing toothed bar, in order to go paste to sieve in impact, because arc elastic claw 2 is higher than threshing tooth 5
~ 7mm, the small―gap suture of itself and notch board are easier that short stem, the broken blade pasted in notch board inner surface are dredged and cleaned down.In combination ratch
The threshing toothed bar back segment at place is Lysimachia sikokiana section, and the section is provided with multiple Lysimachia sikokiana teeth 4, and the arranged at equal intervals of Lysimachia sikokiana tooth 4 are in threshing
On ratch, fixed with welding manner.Wherein, the threshing toothed bar body provided with combination ratch is downwardly projected by ratch, ratch both sides
Ratch win in succession, the support base that projects upwards is formed.
There are 6 for damage of the reduction to millet and in view of the substantially anhydrous rice in millet planting area, preferably above-mentioned threshing toothed bar,
Wherein 4 threshing toothed bars and every threshing toothed bar are provided with a rasp bar ratch and multiple Lysimachia sikokiana teeth, 2 threshing toothed bars and every
Threshing toothed bar is provided with a combination ratch and multiple Lysimachia sikokiana teeth.Wherein, 2 threshing toothed bars with combination ratch are symmetrical
Set, 4 threshing toothed bars with rasp bar ratch are also symmetrically set, the injustice brought with eliminating threshing cylinder to run at high speed
It is evenly effective when weighing apparatus and threshing.
Threshing cylinder of the present invention uses rasp bar ratch based on rubbing and roll in threshing section, and paddy code is rubbed from stem leaf
Take off and seed is separated from paddy code, and use combination ratch side impact lateral dominance will with its curved wire elastic claw
Short stem, the broken blade pasted in notch board inner surface are dredged and cleaned down.Specifically, the crown of the rasp bar tooth on the rasp bar ratch 1, with
The crown of Lysimachia sikokiana tooth 4 on threshing toothed bar provided with rasp bar tooth is located at sustained height,；The crown of the threshing tooth 3 and rasp bar tooth
Crown be located at sustained height, and the crown also with the Lysimachia sikokiana tooth 4 on the threshing toothed bar provided with threshing tooth 3 is located at sustained height；
The height of the peak of arc elastic claw 2 is higher than the height of the crown of threshing tooth 3.So oneself and threshing toothed bar of arc elastic claw 2
Junction, which is risen, to stretch out, and it be in bending that it, which extends free end, and similar broom is by green stalk of the paste on notch board inner surface, blade
Clean out.Such as Fig. 3 a, 3b, the difference in height of the height of the peak of arc elastic claw 2 and the crown of threshing tooth 3 be not less than
5 millimeters and no more than 7 millimeters, it so can effectively clear away paste sieve thing.Wherein, to prevent roller from blocking, the arc on arc elastic claw 2
Lug boss is consistent towards the direction rotated with threshing cylinder.The threshing tooth 3 is finger-like tooth, to rub, impact paddy code.
Threshing cylinder of the present invention is provided with Lysimachia sikokiana tooth in Lysimachia sikokiana section, i.e., the end of every threshing toothed bar.The Lysimachia sikokiana tooth width
Installation is equal with the straw outlet width in grain threshing portion.The Lysimachia sikokiana tooth is finger-like tooth, although being rubbed for a long time hitting some
With impacting but the remaining paddy code that does not purify yet, and while make half ripe therein or the immature remaining seed be completely separated out
The long stalk purified, empty paddy code are quickly discharged outside machine.
Grid concave plate 5 is provided with below millet harvest-seed extraction roller, the grid concave plate 5 uses three sections of 180 degree cornerite
Six tile shape grid screens（Referring to the drawings 4）, symmetrical grid screen fixed by alignment pin 51 and positioning hole 52, so can be not
In the case of tearing roller open, notch board is dismounted.The grid concave plate 5 is all using close gap, specifically, on the notch board between grid
Pitch-row is equal, and to prevent the paddy code and half paddy code taken off in threshing course from leaking down from sieve aperture, a pitch-row d is not less than 6 millis
Rice and no more than 8 millimeters, so only need to change when the situation of serious wear occurs in notch board part it is one of, can also
Less one piece will be worn on notch board and is replaced and wears larger one piece, maintenance cost is greatly reduced, improves dismounting convenience.
The notch board includes the grating 54 along notch board radian direction arrangement and the horizontal stripe 53 along concave length direction arrangement.For
Notch board 5 in threshing course is set to be not easy paste sieve, the distance b that its horizontal stripe 53 is higher by grating 54 is arranged to not less than 6 millimeters and no more than 7
Millimeter.
In order to avoid paste is sieved in the gap of notch board 5, threshing toothed bar and notch board, especially on threshing toothed bar the crown of tooth with it is recessed
The distance of plate intrados limits within the specific limits.Specifically, on the rasp bar tooth or threshing toothed bar provided with rasp bar tooth
The gap a between Lysimachia sikokiana tooth 4 or the threshing tooth 3 and the notch board 5 on Lysimachia sikokiana tooth 4 or threshing toothed bar provided with threshing tooth 3
No more than 10 millimeters.Further, the gap between the arc elastic claw and the notch board is not less than 2 millimeters and no more than 5 millis
Rice.
When plant is transported to threshing cylinder, rasp bar rubbing on roller, roll, the paddy code on grain ear is rubbed with the hands big portion
Point, and spin be moved into roller stage casing backward entrainment of the mixture of paddy code, grain ear, stalk, in the continuation of roller rasp bar
Under kneading action, the paddy code on grain ear is completely fallen off, and more than 95% seed also comes off separation from paddy code, when continuing to transport backward
During dynamic arrival roller latter end, the remaining paddy code not purified yet then is continued to impact and completely fallen off by ratch rear end finger-like tooth.
In whole threshing course, long stalk, big miscellaneous leaf, drop down onto ground under being thrown without grain paddy code and part capes code from drum outlet end
Face, and seed and the capes code without grain can fall through into grain cleaning portion from the grid gap of notch board, and then subsequently clean.
Specific embodiment described herein is only to spirit explanation for example of the invention.Technology belonging to the present invention is led
The technical staff in domain can be made various modifications or supplement to described specific embodiment or be replaced using similar mode
Generation, but without departing from the spiritual of the present invention or surmount scope defined in appended claims.
Claims (14)
1. a kind of millet combined harvester sheller unit, including threshing cylinder, the threshing cylinder top cover above threshing cylinder,
Grid concave plate below threshing cylinder, it is characterised in that after the threshing cylinder includes closed taper placket and open type
Cylinder；Cylinder includes the drum shaft coaxially connected with closed taper placket, the width disk for being connected to drum shaft both ends, week after the open type
To being distributed in the drum shaft and be connected to multiple threshing toothed bars on width disk；Part threshing toothed bar in multiple threshing toothed bars and
Every threshing toothed bar is provided with a rasp bar ratch and multiple Lysimachia sikokiana teeth, and part threshing toothed bar and every threshing toothed bar and set
There are a combination ratch and multiple Lysimachia sikokiana teeth；The combination ratch alternates interval by multiple threshing tooths and multiple arcs elastic claw
It is arranged to make up.
2. a kind of millet combined harvester sheller unit according to claim 1, it is characterised in that on the rasp bar ratch
Rasp bar tooth crown, be located at sustained height with the crown of the Lysimachia sikokiana tooth on the threshing toothed bar provided with rasp bar tooth；The threshing tooth
The crown of crown and rasp bar tooth be located at sustained height, and the crown position also with the Lysimachia sikokiana tooth on the threshing toothed bar provided with threshing tooth
In sustained height；The height of the arc elastic claw peak is higher than the height of the threshing tooth crown.
3. a kind of millet combined harvester sheller unit according to claim 2, it is characterised in that the rasp bar tooth is set
There are the Lysimachia sikokiana tooth on the threshing toothed bar of rasp bar tooth or the Lysimachia sikokiana tooth on the threshing toothed bar provided with threshing tooth or the threshing tooth and institute
The gap stated between notch board is not more than 10 millimeters.
A kind of 4. millet combined harvester sheller unit according to claim 3, it is characterised in that the arc elastic claw with
Gap between the notch board is not less than 2 millimeters and no more than 5 millimeters.
5. a kind of millet combined harvester sheller unit according to claim 1, it is characterised in that the arc elastic claw is most
The height of high point and the difference in height of the threshing tooth crown are not less than 5 millimeters and no more than 7 millimeters.
6. a kind of millet combined harvester sheller unit according to claim 1, it is characterised in that the notch board uses
The symmetrical tile segmented grid concave plate of 180 degree.
7. a kind of millet combined harvester sheller unit according to claim 1 or 6, it is characterised in that on the notch board
Pitch-row is equal between grid.
8. a kind of millet combined harvester sheller unit according to claim 7, it is characterised in that pitch-row is not between described
Less than 6 millimeters and no more than 8 millimeters.
A kind of 9. millet combined harvester sheller unit according to claim 1 or 6, it is characterised in that the notch board bag
Include the grating along notch board radian direction arrangement and the horizontal stripe along concave length direction arrangement；The horizontal stripe be higher by the grating away from
It is not less than 6 millimeters and no more than 7 millimeters from d.
A kind of 10. millet combined harvester sheller unit according to claim 1, it is characterised in that the threshing toothed bar
There are 6, wherein 4 threshing toothed bars and every threshing toothed bar is provided with a rasp bar ratch and multiple Lysimachia sikokiana teeth, 2 threshing toothed bars
And every threshing toothed bar is provided with a combination ratch and multiple Lysimachia sikokiana teeth.
A kind of 11. millet combined harvester sheller unit according to claim 1, it is characterised in that the arc elastic claw
On arc convex portion towards with threshing cylinder rotation direction it is consistent.
A kind of 12. millet combined harvester sheller unit according to claim 1, it is characterised in that the rasp bar ratch
Length be at least 2/3rds of the threshing toothed bar length.
A kind of 13. millet combined harvester sheller unit according to claim 1, it is characterised in that the threshing tooth and
The Lysimachia sikokiana tooth is finger-like tooth.
A kind of 14. millet combined harvester sheller unit according to claim 1, it is characterised in that the threshing cylinder
Diameter not less than 600 millimeters and no more than 650 millimeters.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710706657.3A CN107396700B (en) | 2017-08-17 | 2017-08-17 | Threshing device of millet combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN111820012A (en) * | 2020-07-21 | 2020-10-27 | 河南科技大学 | Flexible concave sieve with rotatable threshing unit |
| CN114557198A (en) * | 2022-03-02 | 2022-05-31 | 甘肃农业大学 | Transverse axial flow threshing device |
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| CN111820012B (en) * | 2020-07-21 | 2022-08-09 | 河南科技大学 | Flexible concave sieve with rotatable threshing unit |
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