CN202697298U - Combine harvester cleaning device with double air ports and a plurality of air ducts - Google Patents
Combine harvester cleaning device with double air ports and a plurality of air ducts Download PDFInfo
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- CN202697298U CN202697298U CN 201220274784 CN201220274784U CN202697298U CN 202697298 U CN202697298 U CN 202697298U CN 201220274784 CN201220274784 CN 201220274784 CN 201220274784 U CN201220274784 U CN 201220274784U CN 202697298 U CN202697298 U CN 202697298U
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- air outlet
- deflector
- air
- cleaning device
- lower air
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Abstract
The utility model provides a combine harvester cleaning device with double air ports and a plurality of air ducts; and the combine harvester cleaning device comprises a vibrating screen and a fan which is mounted below and in front of the vibrating screen, wherein upper and lower air outlets are formed in the fan; the lower air outlet faces the direction of the back end of the bottom surface of the vibrating screen; the direction of the upper air outlet is reverse to that of the lower air outlet; and the upper air outlet is connected to the front end part of the upper screen surface of the vibrating screen by a guiding pipe and is parallel to the the upper screen surface towards the direction of the back end of the vibrating screen. The combine harvester cleaning device with the double air ports and the plurality of air ducts, provided by the utility model, has the advantages as follows: as the two air outlets with different directions are formed in the fan and flow guide plates are also additionally arranged at the air outlets, the whole upper and lower screen surfaces of the vibrating screen and a seed output auger are comprehensively and uniformly blown with air from the four air ducts in three layers, so that no dead corner is left, the cleaning efficiency is greatly increased and the cleaning loss is also reduced.
Description
Technical field
The utility model relates to the seed cleaning device of combine.
Background technology
The seed cleaning device of combine generally comprises drum sieve and/or double layer planar vibratory sieve and blower fan.Usually structure is: single outlet is installed in the positive front lower place of vibratory sieve blows out the type blower fan, the fan outlet axis is slightly to updip, make the wind that blows out along the lower compass screen surface of vibratory sieve upward blowing simultaneously from front to back, and blow out through the postmedian of upper compass screen surface, take away the impurity such as straw fragment and the not plump paddy of flat grain; And be positioned at vibratory sieve under be to clean clean plump seed and deliver to the screw feeder of tank, in order to strengthen cleaning effect, what have also installs wind deflector additional at the fan outlet place, and a part of wind is down blowed to screw feeder toward retreading, and makes from vibratory sieve to fall to accepting after-blow to the material of screw feeder and clean.The shortcoming that above-mentioned blowing dressing mechanism exists is; the first half section of compass screen surface seldom blows to or blows less than the wind that makes progress from front to back on the vibratory sieve; thereby making the mixtures of impurities such as the seed that falls from the thresher notch board and straw fragment and secondary take off back again the mixture of throwing is effectively cleaned this section zone; and directly drop on or shed on upper compass screen surface; and easily the local thick local unfertile land of generation is deposited on the compass screen surface, has increased the load of vibratory sieve.
Summary of the invention
The purpose of this utility model is to carry out technological improvement for overcoming the existing shortcoming of above-mentioned cleaning plant, thereby a kind of cleaning efficiency and the higher cleaning device of combined harvester with two air ports multiple duct of quality are provided.
Technical solution of the present utility model is: a kind of cleaning device of combined harvester with two air ports multiple duct, the involving vibrations sieve, be installed on the blower fan of vibratory sieve front lower place, described blower fan offers up and down two air outlets, lower air outlet extreme direction behind the vibratory sieve bottom surface, the direction of upper air outlet is opposite with lower air outlet, upper air outlet by connect pipe and draw the leading section of receiving compass screen surface on the vibratory sieve and parallel with upper compass screen surface behind vibratory sieve extreme direction.
As preferably, described lower air outlet is updip slightly, the first deflector that slightly has a down dip is installed in the air port, namely form the upper air duct that up blows toward retreading to the vibratory sieve bottom surface between the first deflector and the lower air outlet upper wall, namely form down between the first deflector and the lower air outlet lower wall and blow toward retreading to the lower air duct of seed output screw feeder.
As preferably, between described the first deflector and the lower air outlet upper wall the second deflector is installed also, namely form the upper air duct that blows to front portion, vibratory sieve bottom surface between the second deflector and the lower air outlet upper wall, namely form the middle air channel that blows to vibratory sieve bottom surface postmedian between the second deflector and the first deflector.
As preferably, the axis of described lower air outlet and horizontal line angle are 12～22 °.
As preferably, described the first deflector is positioned at the axis below of lower air outlet, with axis angle be 5～10 °.
As preferably, described the second deflector is positioned at the axis top of lower air outlet, with axis angle be 10～20 °.
The beneficial effects of the utility model are: because blower fan has been offered the air outlet of two different directions and added deflector at air outlet, thereby realized with four air channel tri-layers the whole up and down compass screen surface of vibratory sieve and the comprehensively evenly blowing of seed output screw feeder, do not stay the dead angle, not only significantly improve cleaning efficiency, also reduced cleaning loss.
Description of drawings
Fig. 1 is side-looking structural representation of the present utility model.
Fig. 2 is perspective view of the present utility model.
Embodiment
The utility model is described in further detail with embodiment below in conjunction with accompanying drawing.
A kind of grain combine cleaning plant has vibratory sieve 1, is installed on the blower fan 2 of vibratory sieve front lower place.The vibratory sieve 1 of the present embodiment adopts double-deck reciprocating oscillating screen.Described blower fan 2 has spiral case 24, impeller 22, spiral case 24 tangentially offers air outlet 21 and lower air outlet 23, lower air outlet 23 is extreme direction and summary updip behind the vibratory sieve bottom surface, and axis and horizontal line angle that its suitable upper inclination is lower air outlet 23 are 12～22 °; The direction of upper air outlet 21 is opposite with lower air outlet 23, upper air outlet 21 connects with the lower nozzle 31 that the arc bending connects pipe 3, the arc bending connect the leading section of pipe 3 upper orifice 32 compass screen surface 11 on the vibratory sieve and parallel with upper compass screen surface behind vibratory sieve extreme direction, thereby form upper compass screen surface air channel.The lower air outlet 23 of the present embodiment blower fan 2 is equipped with the first deflector 26 that slightly has a down dip in its air port, namely described the first deflector 26 is positioned at the axis below of lower air outlet 23, with axis angle be 5～10 °.Form the upper air duct that up blows toward retreading to vibratory sieve bottom surface 12 between the first deflector 26 and lower air outlet 23 upper walls, form between the first deflector 26 and lower air outlet 23 lower walls down and blow toward retreading to the lower air duct of seed output screw feeder 4., the wind energy that makes upper air duct overcomes the blowing dead angle for blowing to the front portion of vibratory sieve bottom surface 12, slightly the second deflector 25 of updip also is installed between described the first deflector 26 and lower air outlet 23 upper walls, be the axis top that described the second deflector 25 is positioned at lower air outlet 23, with axis angle be 10～20 °.Thereby formed the upper air duct that blows to 12 front portions, vibratory sieve bottom surface between the second deflector 25 and lower air outlet 23 upper walls, formed the middle air channel that blows to vibratory sieve bottom surface 12 postmedians between the second deflector 25 and the first deflector 26.So this cleaning plant has formed the two air ports four air channel tri-layer blowings of single blower fan and cleaned, and has reached blowing and has not evenly stayed the dead angle comprehensively, cleaning loss is few, and seed is clean, the good result that cleaning efficiency improves greatly.
Claims (6)
1. cleaning device of combined harvester with two air ports multiple duct, involving vibrations sieve (1), be installed on the blower fan (2) of vibratory sieve (1) front lower place, it is characterized in that described blower fan (2) offers up and down two air outlets, lower air outlet (23) extreme direction behind the vibratory sieve bottom surface, the direction of upper air outlet (21) is opposite with lower air outlet (23), upper air outlet (21) by connect pipe (3) and draw the leading section of receiving compass screen surface on the vibratory sieve (11) and parallel with upper compass screen surface behind vibratory sieve extreme direction.
2. the cleaning device of combined harvester with two air ports multiple duct according to claim 1, it is characterized in that slightly updip of described lower air outlet (23), the first deflector (26) that slightly has a down dip is installed in the air port, namely form the upper air duct that up blows toward retreading to vibratory sieve bottom surface (12) between the first deflector (26) and lower air outlet (23) upper wall, namely form down between the first deflector (26) and lower air outlet (23) lower wall and blow to the lower air duct of seed output screw feeder (4) toward retreading.
3. the cleaning device of combined harvester with two air ports multiple duct according to claim 2, it is characterized in that between described the first deflector (26) and lower air outlet (23) upper wall the second deflector (25) being installed also, namely form between the second deflector (25) and lower air outlet (23) upper wall and blow to the anterior upper air duct in vibratory sieve bottom surface (12), namely form the middle air channel that blows to vibratory sieve bottom surface (12) postmedian between the second deflector (25) and the first deflector (26).
4. the cleaning device of combined harvester with two air ports multiple duct according to claim 1 and 2 is characterized in that the axis of described lower air outlet (23) and horizontal line angle are 12～22 °.
5. according to claim 2 or 3 described cleaning device of combined harvesters with two air ports multiple duct, it is characterized in that described the first deflector (26) is positioned at the axis below of lower air outlet (23), with axis angle be 5～10 °.
6. the cleaning device of combined harvester with two air ports multiple duct according to claim 3 is characterized in that described the second deflector (25) is positioned at the axis top of lower air outlet (23), with axis angle be 10～20 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274784 CN202697298U (en) | 2012-06-12 | 2012-06-12 | Combine harvester cleaning device with double air ports and a plurality of air ducts |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220274784 CN202697298U (en) | 2012-06-12 | 2012-06-12 | Combine harvester cleaning device with double air ports and a plurality of air ducts |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202697298U true CN202697298U (en) | 2013-01-30 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220274784 Expired - Fee Related CN202697298U (en) | 2012-06-12 | 2012-06-12 | Combine harvester cleaning device with double air ports and a plurality of air ducts |
Country Status (1)
| Country | Link |
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| CN (1) | CN202697298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102726175A (en) * | 2012-06-12 | 2012-10-17 | 星光农机股份有限公司 | Cleaning device with double air ports and multiple air passages for combine harvester |
| CN106561173A (en) * | 2016-10-31 | 2017-04-19 | 濮阳市农发机械制造有限公司 | Automatic grain cleaning device |
-
2012
- 2012-06-12 CN CN 201220274784 patent/CN202697298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102726175A (en) * | 2012-06-12 | 2012-10-17 | 星光农机股份有限公司 | Cleaning device with double air ports and multiple air passages for combine harvester |
| CN106561173A (en) * | 2016-10-31 | 2017-04-19 | 濮阳市农发机械制造有限公司 | Automatic grain cleaning device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20200612 |