CN1030512A - A kind of improved all-feed mixed flow crop head thresher - Google Patents
A kind of improved all-feed mixed flow crop head thresher Download PDFInfo
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- CN1030512A CN1030512A CN 87104573 CN87104573A CN1030512A CN 1030512 A CN1030512 A CN 1030512A CN 87104573 CN87104573 CN 87104573 CN 87104573 A CN87104573 A CN 87104573A CN 1030512 A CN1030512 A CN 1030512A
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- threshing
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Abstract
A kind of improved all-feed mixed flow crop head thresher is specially adapted to spike of rice, wheat head threshing, please selects for use.It by frame, feeding workbench, grass guide spiral, threshing cylinder, threshing screening plate screen, grass guide spiral, lead careless cylinder, the grain collecting chamber that splashes, cleaning plant, defeated grain spiral, discharging opening etc. form.Feeding method is horizontal feeding, has the threshing performance height, entrainment rate is low, deviates from cereal and foreign material good separating effect, the advantage that impurity content is few, simple in structure, cost is low.Can use separately, also be easy to and the supporting usefulness of combine.
Description
A kind of improved all-feed mixed flow crop head thresher is specially adapted to spike of rice, wheat head threshing, cleans usefulness.Belong to the agricultural machinery class.
According to this institute original application utility model patent, application number: 85205329, the patent No.: 85205329.0, application for a patent for invention number: 85108952, this machine is mainly by the feeding workbench, threshing cylinder, the grass grindering drum coaxial with threshing cylinder, cutting grass knife, the rotation reel paddle, grass guide spiral, spiral grid screen, the grain that splashes is collected mouth, discharging opening is formed, the feeding mode is that the length direction of millet straw is with respect to the approximate parallel feeding of cylinder axis, can tentatively finish the grain separation problem in the millet straw, but still have part grain to be entrained in the millet straw, because of no cleaning plant, deviate from cereal and the foreign material separation function still is unrealized.
Task of the present invention provides a kind of improved all-feed mixed flow crop head thresher, thereby has solved cereal and foreign material separation problem, and the existing thresher that further descended is deviate from cereal entrainment rate in the millet straw.
Task of the present invention takes following mode to realize, the threshing concave plate sieve that matches with it is housed below threshing cylinder, the rotation direction of grass guide spiral axle has been done change, make it identical with the threshing cylinder direction of rotation, lead careless cylinder with coaxial being equipped with of grass guide spiral, lead careless cylinder and be connected, lead careless cylinder bottom and be furnished with preceding concave grate with holes with the grass guide spiral coaxial rigid, on the direction that the positive front of grass guide spiral grain flies out, the grain collecting chamber that splashes is housed, grain is housed in collecting chamber collects sieve plate.This thresher cleaning plant mainly adopts several pieces fan blades that are contained on threshing cylinder and the grass grindering drum to produce wind regime, main air duct, defeated grain spiral, threshing concave plate sieve, preceding air quantity controllable register, back air quantity controllable register, draw together careless plate and compositions such as upper encloser that cooperates with it and arc wind board.
Owing to taked above-mentioned corrective measure to solve cereal and foreign material separation problem, the existing thresher that further descends is deviate from cereal entrainment rate in the millet straw.
Below with reference to accompanying drawing concrete structure of the present invention and working condition are further described:
Fig. 1 is that the present invention is at the A-A of Fig. 2 cutaway view.
Fig. 2 is that the present invention is at the B-B of Fig. 1 cutaway view.
Fig. 3 is that the C of the present invention in Fig. 1 is to view (removing upper encloser).
Fig. 4 is the motion conditions schematic diagram of expression each of threshing millet straw in stage.
Fig. 5 is a threshing concave plate sieve partial sectional view.
In the accompanying drawing: 1. front cover shell, 2. grass scraping plate, 3. fan propeller, 4. upper encloser, 5. arc wind board, 6. feeding workbench, 7. lead careless concave grate, 8. threshing rasp bar, 9. base plate, 10. frame, 11. drive pulleys, 12. threshing cylinders, 13. threshing cylinder, 14. cylinder shafts, 15. defeated grain spirals, 16. preceding air quantity controllable register, 17. back amount controllable register, 18. preceding concave grates, 19. lead careless cylinder, 20. discharging openings, 21. grain are collected sieve plate, 22. lead careless rubbing board, the 23. grain collecting chambers that splash, 24. grass guide spirals, 25. driven pulley, 26. the threshing concave plate sieve, 27. raised tooth, 28. soft material layers.
All-feed mixed flow crop head thresher after improving with reference to Fig. 3, it has feeding workbench (6), the grass grindering drum (13) that threshing cylinder (12) is connected with coaxial rigid with it.Threshing cylinder is the garden cylindricality or cuts taper, and grass grindering drum is the garden cylindricality.Grass guide spiral (24) is arranged and lead careless cylinder (19) in the dead ahead of threshing cylinder (12), outside leading careless cylinder (19), be fixed with on the garden and lead careless rubbing board (22) with grass grindering drum (13).Improved grass guide spiral (24) with lead careless cylinder coaxial rigid and link to each other.Wherein grass guide spiral (24) is led careless cylinder (19) in the dead ahead of grass grindering drum (13) in the dead ahead of threshing cylinder (12), and grass guide spiral (24) is with to lead careless cylinder (19) identical with the direction of rotation of threshing cylinder (12).The grain collecting chamber (23) that splashes is positioned at the positive front of grass guide spiral (24), on the direction that grain flies out, and grain collection sieve plate (21) is housed in grain collecting chamber (23) is splashed in grass guide spiral (24) front.The outlet of millet straw (20) is positioned at the dead ahead of leading careless rubbing board (22).Driven pulley (25) is grass guide spiral and the power input pulley of leading careless cylinder, and this belt pulley is driven by the drive pulley (11) of threshing cylinder end.
Be equipped with reference to the outer surface of Fig. 1 threshing cylinder (12) several pieces centrifugal fan blades (3) are housed between several threshing rasp bars (8), threshing rasp bar (8) and the cylinder shaft (14).Grass grindering drum (13) is the garden cylindricality, and the big end that outer surface is equipped with end of several piece grass scraping plate (2), grass grindering drum (13) and threshing cylinder (12) links and be coaxial.Be furnished with preceding concave grate (18) with holes in the bottom of leading careless cylinder (19), preceding concave grate (18) links to each other with frame (10).
With reference to Fig. 2, Fig. 5 the threshing concave plate sieve (26) that matches with it is housed below threshing cylinder (12), threshing concave plate sieve (26) adopts the metal material punching to form, and inner surface has raised tooth (27), plays flailing action.In order to reduce the grain fragmentation, the outer surface that can sieve the compass screen surface raised tooth position of (26) at threshing concave plate is wrapped up in one deck soft material layer (28).Below leading careless cylinder (14), be equipped with and lead careless concave grate (7), lead careless concave grate (7) and adopt metal material to be washed into the definite shape hole, can reduce twining grass effect.
When thresher is worked; because the millet straw cane of feeding is approximately parallel horizontal feeding with respect to threshing cylinder (12) axis; rasp bar (8) on the threshing cylinder (12) is little with the gap of threshing concave plate sieve (26); and on the grass grindering drum (13) draw together careless plate (2) and to lead careless concave grate (7) gap bigger; simultaneously threshing rasp bar (8) with draw together careless plate (2) the angle γ (seeing accompanying drawing 1) that offsets on week in the garden of cylinder; make millet straw fringe portion obtain the garden circular velocity in advance like this, millet straw cane afterbody also obtains the garden circular velocity than fringe portion position of hysteresis under the effect of drawing together careless plate (2).Make the millet straw cane that enters cylinder produce inclination like this with respect to cylinder axis.Millet straw fringe portion is under the threshing rasp bar (8) on the threshing cylinder (12) and the high speed rubbing of threshing concave plate sieve (26) are pushed, the overwhelming majority of the grain of taking off declines from the sieve aperture of threshing concave plate sieve (26), and main air duct is laggard to be gone into to fail outside grain spiral (15) the discharge machine, and the foreign material of carrying secretly simultaneously then are blown outside the machine by main air duct.Enter in the gap between grass guide spiral (24) and preceding concave grate (18) and the grain collection sieve plate (19) through the millet straw fringe portion of threshing.Because the effect of grass guide spiral makes millet straw fringe portion locate to move to millet straw outlet (20) rapidly, the feeding millet straw is thrown outside the ejaculator drawing together under careless plate (2) and the synergy of leading careless rubbing board (22) from outlet (20) then.Because part millet straw cane does not enter between threshing cylinder (12) and the threshing concave plate sieve (26) and crumples in the process of threshing, therefore required power consumption is lower, and the millet straw cane is difficult for broken.
With reference to Fig. 4, Fig. 4 represents the motion conditions of each of threshing millet straw in stage, and wherein a is an import department, and b is the drum threshing section, and C dredges brush segregation section for going out careless spiral, and d is a discharge state.
The present invention is furnished with a cover cleaning plant mainly by wind regime, and main air duct, defeated grain spiral (15), threshing concave plate sieve (26), preceding air quantity controllable register (16), back air quantity controllable register (17) are formed.Since threshing cylinder (12) be fixed with several pieces fan propeller (3) on the coaxial grass grindering drum that links to each other (13) with it, when threshing cylinder rotates, cooperate upper encloser (4) and arc wind board (5) to produce high velocity air, this air-flow passes cane layer and threshing concave plate sieve and is blown into main air duct the cereal of taking off is cleaned in the process of threshing.In full feeding thresher, realize that the key principle of this invention is to have utilized feeding cane speed V
1And movement velocity V in the gap of cane between threshing cylinder and threshing concave plate sieve in the threshing course
2Difference.General V
1≤ V
2Although, therefore carry out continuously feeding uniformly at the thresher feeding mouth, always may let in air discontinuously in the sieve plate porch is blown into the bottom of threshing sieve plate.
In Fig. 1, threshing concave plate sieve (26) is positioned to be cleaned main air duct and has between the threshing cylinder of fan propeller (3).And this section main air duct is positioned between base plate (9) and the back air-flow plate (16).The principal plane of fan propeller (3) is parallel with the axis of cylinder shaft (14) simultaneously.
At Fig. 1, among Fig. 2, the wind regime of this cleaning plant is gone up fixing several pieces fan propeller (3) from threshing cylinder (12) and grass grindering drum (13), draw together careless plate (2), when their coaxial rotations, because fan propeller (3) and draw together careless plate (2) and cooperate upper encloser (4) and arc wind board (5) to act on, air is sucked by cylinder top tangential direction and cylinder two ends, and at the porch of threshing concave plate sieve (26) generation high velocity air, this air-flow passes this place's millet straw thin layer and threshing concave plate sieve (26), lead careless concave grate (7), the main air duct that passes through base plate (9) and back air-flow plate (16) and preceding air-flow plate (17) formation then blows out light foreign material outside the machine.The plump seed of being taken off by threshing cylinder (12) falls into defeated grain helicla flute and is sent outside the machine by defeated grain spiral (15) in this course.In the process of threshing, go out careless spiral (24) isolated seed and foreign material fall into passage between back air-flow plate (16) and the preceding air-flow plate (17).Under the effect that goes out the lingering remnants of past customs that careless spiral (24) produced and seed self gravitation, slide into the main air duct between preceding air-flow plate (17) and the base plate (9), the wherein assorted surplus machine outside that is blown, seed then falls into defeated grain spiral (15) and is sent outside the machine.Back air-flow plate (16) and preceding air-flow plate (17) can carry out air quantity according to the Chhnang effect and regulate.In addition in the process of threshing, except having stronger wind to be blown into the main air duct in the porch of leading careless concave grate (7) and threshing concave plate sieve (26), on the entire working surface of leading careless concave grate (7) and threshing concave plate sieve (26) and preceding concave grate (18), all there is the part lingering remnants of past customs to pass the millet straw layer, and the main air duct between air quantity controllable register (17) and the noseplate (9) and produce clear thing effect before entering.
This cleaning plant is except all-feed mixed flow crop head thresher is implemented, and at the semi-feeding type thresing machine, and other cuts the effect of implementing on the streaming thresing machine also can obtain than satisfied. This cleaning plant is simple with existing traditional cleaning plant structure compared, can save a blower fan, alleviates complete machine weight and reduces cost, and obtain to clean accordingly effect.
Use thresing machine of the present invention, power dissipation ratio is existing, and to cut the streaming thresing machine low. The seed that can finish simultaneously threshing, precleaning, take off in the rear grass separates. Cut streaming half compound type thresher structure compared letter with tradition, can save significantly cost. And be easy to use with matched with combine, in addition since this machine operator when feeding to stand in the more traditional thresing machine in the front feeding of the side feeding of loom safer.
Claims (9)
1; a kind of feeding workbench (6) that includes; frame (10); grass guide spiral (24); threshing cylinder (12); the grass grindering drum coaxial (13) with threshing cylinder; discharging opening compositions such as (20); the length direction that its feeding mode is a millet straw is with respect to the approximate parallel feeding of cylinder axis; a kind of improved all-feed mixed flow crop head thresher; it is characterized in that threshing cylinder (12) is furnished with threshing concave plate sieve (26); grass guide spiral (24) has been done improvement, and is furnished with preceding concave grate (18) with it mutually; lead careless cylinder (19) with coaxial being equipped with of grass guide spiral; has the grain of splashing collecting chamber (23); is furnished with a cover cleaning plant.
2, thresher according to claim 1; it is characterized in that being equipped with below the threshing cylinder (12) the threshing concave plate sieve (26), the threshing concave plate sieve (26) that match with it and adopt the sheet metal punching to form, inner surface has raised tooth (27), lead to be equipped with below the careless cylinder (19) and lead careless concave grate (7), lead careless concave grate and adopt the sheet metal punching to form.
3, thresher according to claim 1 and 2 is characterized in that threshing cylinder (12) and grass grindering drum (13) dead ahead be equipped with one and lead careless cylinder (19), is fixed with on the outer garden of leading careless cylinder (19) and leads careless rubbing board (22); Improved grass guide spiral (24) with lead careless cylinder coaxial rigid and be connected, wherein grass guide spiral (24) is in the dead ahead of threshing cylinder (12), leads careless cylinder (19), grass guide spiral (24) is identical with threshing cylinder (12) direction of rotation.
4, thresher according to claim 3 is characterized in that being furnished with preceding concave grate (18) with holes at the grass guide spiral (24) and the bottom of leading careless cylinder (19).
5, thresher according to claim 1, the grain collecting chamber (23) that it is characterized in that splashing are positioned on the direction that the positive front grain of grass guide spiral (24) flies out, and grain is housed in the grain collecting chamber (23) collects sieve plate (21).
6, thresher according to claim 2 is characterized in that the appearance at the compass screen surface raised tooth position (27) of threshing concave plate sieve (26) is being wrapped up in one deck soft material layer (28).
7, thresher according to claim 1 is characterized in that the cleaning plant of this machine mainly is made up of wind regime, main air duct, defeated grain spiral (15), threshing concave plate sieve (26), preceding air quantity controllable register (16), back air quantity controllable register (17).The wind regime of system comes from several pieces fans (3) of being fixed on threshing cylinder (12) and the coaxial with it grass grindering drum (13), draw together careless plate (2) and with upper encloser (4), the arc wind board (5) of their mating reactions.
8, thresher according to claim 7 is characterized in that the threshing concave plate sieve (26) in the cleaning plant is positioned between the threshing cylinder (12) of cleaning main air duct and having fan propeller (3).
9, thresher according to claim 7 is characterized in that the principal plane of fan propeller (3) of cleaning plant is parallel with cylinder shaft (14) axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87104573.7A CN1003417B (en) | 1987-06-27 | 1987-06-27 | Improved full-feeding mixed-flow type ear thresher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN87104573.7A CN1003417B (en) | 1987-06-27 | 1987-06-27 | Improved full-feeding mixed-flow type ear thresher |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1030512A true CN1030512A (en) | 1989-01-25 |
| CN1003417B CN1003417B (en) | 1989-03-01 |
Family
ID=4814930
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN87104573.7A Expired CN1003417B (en) | 1987-06-27 | 1987-06-27 | Improved full-feeding mixed-flow type ear thresher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1003417B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577765A (en) * | 2012-03-21 | 2012-07-18 | 重庆旭田农业机械有限公司 | Row-threshing type threshing device of whole-feeding small combine harvester |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101919329B (en) * | 2009-06-17 | 2012-05-30 | 江苏宇成动力集团有限公司 | Threshing and separating device of combine harvester |
-
1987
- 1987-06-27 CN CN87104573.7A patent/CN1003417B/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102577765A (en) * | 2012-03-21 | 2012-07-18 | 重庆旭田农业机械有限公司 | Row-threshing type threshing device of whole-feeding small combine harvester |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1003417B (en) | 1989-03-01 |
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| GR01 | Patent grant |