CN2867836Y - Graded one-way inside-spin air-duct threshing device - Google Patents
Graded one-way inside-spin air-duct threshing device Download PDFInfo
- Publication number
- CN2867836Y CN2867836Y CN 200520052946 CN200520052946U CN2867836Y CN 2867836 Y CN2867836 Y CN 2867836Y CN 200520052946 CN200520052946 CN 200520052946 CN 200520052946 U CN200520052946 U CN 200520052946U CN 2867836 Y CN2867836 Y CN 2867836Y
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- spiral
- housing
- cap
- threshing
- rotating shaft
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Abstract
A gradual-change one-way internal-spiral air duct threshing device includes an one-way internal-spiral air duct formed by spiral air-duct blades and arranged on cambered surface of inner wall of shell cover, wherein the air duct extends from feeding inlet to discharge outlet, spiral angle of the spiral air duct blades increase gradually, a mesh screen wrapping lower half circumference of the threshing roller is arranged on the shell, a grain-discharge rotating shaft provided with continuous spiral blades is arranged under the screen mesh, and an outlet communicated with the grain-discharge tube is disposed on the shell which is adjacent to end of the grain-discharge rotating shaft. The utility model has the advantages of simple structure, low cost, small volume, light weight, small power consumption, high efficiency, good sealing performance and threshing performance, low loss rate, smooth material discharge, no need of secondary threshing machine, and wide application range; and is suitable for various combined harvesters and threshing machines.
Description
Technical field
A kind of agricultural machinery product, the agricultural machinery product of using especially for the threshing of rice and wheat crops.
Background technology
Existing crops sheller unit has two kinds of structures.A kind of is the comb-threshing-type separating mechanism that No. 02277804 patent proposes, and utilizes the airflow field that produces between the comb-threshing-type threshing belt of high speed rotating and the top cover that seed and disconnected fringe etc. is sent into and takes off dressing mechanism again.Its weak point is that the threshing belt easily skids and strain, the threshing system sealing is poor, drag carry that the cane phenomenon is serious, fringe head leakiness is fed secretly, percent of loss height, threshing speed instability, vibration and noise be bigger, needs secondary separating mechanism cooperation etc.Two kinds is housing mode separating mechanism, and being provided with all helical angles in its cap is the unidirectional inside spin air channel of definite value, is integral with square shape grid screen banks on the housing.Though this separating mechanism good airproof performance, percent of loss is low, has that feed quantity is big, power consumption is big, the discharge outlet has some setbacks, easily stop up, seed is easily broken, weak points such as impurity content is high, inefficiency.
Summary of the invention
The purpose of this utility model provides the unidirectional inside spin of a kind of gradual change air channel sheller unit, accomplishes need not the secondary threshing, and discharge is smooth and easy, the threshing loss is little, threshing performance is high, power consumption is little, high efficiency.
Technical scheme is that the case type separating mechanism is improved, and the unidirectional inside spin air channel that is made of the spiral duct blade is set on cap inwall arc surface, and to the discharge outlet, the helical angle of spiral duct blade increases gradually from feed entrance.The grid sieve that surrounds the threshing cylinder lower half is arranged on the housing, and grid sieve below has the outlet that communicates with grain discharging tube for having row's grain rotating shaft of endless spiral on the housing near row's grain rotating shaft end.Wherein the grid lines gone up on the circular arc direction of grid sieve can be conventional circumferencial direction layout, also angular direction layout in the shape of a spiral, and the hand of spiral is identical with spiral duct blade on the cap and helical angle is constant.Grid sieve axis grid line can be conventional axis direction layout, also angular direction layout in the shape of a spiral.
The utility model can use separately or directly be applied on full feed type combine and the thresher.Also can be applicable on half-feed combine harvester and the thresher, but will install the movable blades group additional at housing central rotating shaft front end, and at the other fixed blade that matches with the movable blades group of installing of housing feed entrance.
Because the unidirectional inside spin air channel on the utility model cap is broadening gradually, under the effect of the threshing cylinder of high speed rotating, produce spiral airflow field and powerful turning power, do not stop up, can effectively fringe bar after the threshing and foreign material be separated also unblockedly from discharge outlet discharge with seed, threshing is rapid, totally, therefore need not to carry out the secondary threshing.Because row's grain rotating shaft of grid sieve below can be discharged seed rapidly from grain discharging tube, so the seed damage rate is low.
Compared with the prior art; characteristics of the present utility model be simple in structure, cost is low, volume is little, in light weight, power consumption is little, work efficiency is high, good seal performance; seed threshing performance height; percent of loss is low; discharge is smooth and easy, need not to dispose the secondary separating mechanism; purposes is wide, is adapted at using on various combines and the thresher.
Description of drawings
Fig. 1 is the unidirectional inside spin of a gradual change air channel sheller unit left view (not drawing threshing cylinder and central rotating shaft part among the figure)
Fig. 2 is the cap unidirectional inside spin of the gradual change air channel sheller unit vertical view (not drawing threshing cylinder and central rotating shaft part among the figure) under the state of outwarding winding
Fig. 3 uses half-feed combine harvester structural representation of the present utility model
Fig. 4 is that the A of Fig. 3 is to cutaway view (only drawing the sheller unit part)
Embodiment
Embodiment one independent utility or be applied on the full feed type combine
As Fig. 1, shown in 2, the utility model includes cap 4, housing 8, cap 4 is hinged on the housing 8 by hinge 21, the threshing cylinder of band spike-tooth is housed on housing 8 central rotating shafts, cap 4 and housing 8 left sides are by the feed entrance of being made up of jointly breach separately 18, there is discharge outlet 15 on cap 4 right sides, difference is on the cap 4 inwall arc faces the unidirectional inside spin air channel that is made of spiral duct blade 16 to be arranged, export 15 from feed entrance 18 to discharge, the helical angle of spiral duct blade 16 increases gradually, the grid sieve 20 that surrounds the threshing cylinder lower half is arranged on the housing 8, it is the row's grain rotating shaft 10 with endless spiral that grid sieves 20 belows, on the housing near row's grain rotating shaft 10 ends the outlet that communicates with grain discharging tube is arranged.
Operation principle is as follows: when the crop cane is sent into feed entrance 18, the threshing cylinder of high speed rotating makes seed and cane break away from the one hand, match with spiral duct blade 16 on the cap on the other hand, produce powerful spiral airflow field and turning power, foreign material such as broken cane are discharged to the field from the discharge outlet effectively unblockedly.With it simultaneously, the seed that proportion is bigger then passes the grid sieve and falls into lower housing portion, from grain discharging tube output, falls in the loading utensil under the effect of row's grain rotating shaft.
What deserves to be mentioned is that when the utility model was applied on the full feed type combine, the feeding channel on the harvester directly linked to each other with feed entrance on the sheller unit.
Embodiment two is applied on the half-feed combine harvester
As Fig. 3, shown in 4, half-feed combine harvester comprises rice cutter 7, cut standing grain platform assembly 6, engine 2, gearbox and operation handrail 1, there is road wheel 11 frame 9 both sides, the sheller unit 3 that the utility model provides is positioned at top, frame 9 middle parts, on its housing 8 central rotating shafts 31 the movable blades group 32 that is made of blade and blade is housed, the threshing cylinder 33 of band spike-tooth, cap 4 is hinged on the housing 8 by hinge 21, have on the housing 8 and surround grid sieve 20 that takes off the feed roller lower half and row's grain rotating shaft 10 with endless spiral, on the housing 8 near row's grain rotating shaft 10 right-hand members grain discharging tube 14 is housed, there is feed entrance 18 in housing 8 left sides, the feed entrance 18 other fixed blades 19 that match with movable blades group 32 that are equipped with, there is discharge outlet 15 on cap 4 right sides.
Claims (4)
1, the unidirectional inside spin of a kind of gradual change air channel sheller unit, include cap (4), housing (8), cap (4) is hinged on the housing (8) by hinge (21), the threshing cylinder of band spike-tooth is housed on housing (8) central rotating shaft, cap (4) and housing (8) left side is by the feed entrance of being made up of jointly breach separately (18), there is discharge outlet (15) on cap (4) right side, it is characterized in that the unidirectional inside spin air channel that is made of road blade (16) in the spiral is arranged on cap (4) the inwall arc face, export (15) from feed entrance (18) to discharge, the helical angle of spiral duct blade (16) increases gradually, the grid sieve (20) that surrounds the threshing cylinder lower half is arranged on the housing (8), grid sieve (20) below has the outlet that communicates with grain discharging tube for having row's grain rotating shaft (10) of endless spiral near arranging on the terminal housing of grain rotating shaft (10).
2, the unidirectional inside spin of gradual change according to claim 1 air channel sheller unit is characterized in that the grid lines angle layout in the shape of a spiral on the grid sieve arc direction, and the hand of spiral is identical with spiral duct blade on the cap (4) and helical angle is constant.
3, the unidirectional inside spin of gradual change according to claim 1 and 2 air channel sheller unit is characterized in that grid sieve axis grid line direction layout in the shape of a spiral.
4, the unidirectional inside spin of gradual change according to claim 1 air channel sheller unit is characterized in that and can install the movable blades group additional at housing central rotating shaft front end, and at the other fixed blade that matches with the movable blades group of installing of housing feed entrance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052946 CN2867836Y (en) | 2005-12-26 | 2005-12-26 | Graded one-way inside-spin air-duct threshing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520052946 CN2867836Y (en) | 2005-12-26 | 2005-12-26 | Graded one-way inside-spin air-duct threshing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2867836Y true CN2867836Y (en) | 2007-02-14 |
Family
ID=37722761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520052946 Expired - Fee Related CN2867836Y (en) | 2005-12-26 | 2005-12-26 | Graded one-way inside-spin air-duct threshing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2867836Y (en) |
-
2005
- 2005-12-26 CN CN 200520052946 patent/CN2867836Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |