CN102132650A - Grain threshing device with air blowing type auxiliary air supply device in combination with transverse conveying of auger - Google Patents
Grain threshing device with air blowing type auxiliary air supply device in combination with transverse conveying of auger Download PDFInfo
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- CN102132650A CN102132650A CN200910073336XA CN200910073336A CN102132650A CN 102132650 A CN102132650 A CN 102132650A CN 200910073336X A CN200910073336X A CN 200910073336XA CN 200910073336 A CN200910073336 A CN 200910073336A CN 102132650 A CN102132650 A CN 102132650A
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- air
- air supply
- threshing
- blowing type
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Abstract
The invention provides a gain threshing device with an air blowing type auxiliary air supply device in combination with the transverse conveying of an auger. The grain threshing device comprises a threshing roller, a protective jacket, a settling tank and a transverse conveying auger, and is characterized in that: the gain threshing device also comprises the air blowing type auxiliary air supply device which consists of a centrifugal fan and an air supply pipeline. Threshed seeds of standing crops in the field backwards enter the settling tank by the auxiliary action of airflow provided by the air blowing type auxiliary air supply device. Grains in the field are directly threshed through the threshing roller (1) under the condition that the grains keep standing before being cut; the threshed seeds move backwards along the inner wall of the protective jacket (4), meanwhile reversely enter a threshing chamber between the protective jacket (4) and the threshing roller (1) through the air supply pipeline (2) due to the high-speed airflow produced by the centrifugal fan (3), and are driven to move towards the inner side of the settling tank (8); gases are discharged out of an air outlet (7); and the seeds are settled into a settling tank body, and are transversely conveyed to a grain outlet at one side or at the center of the settling tank body by the auger (9). The air blowing type auxiliary air supply device comprises the centrifugal fan and the air supply pipeline, and a plurality of fans are installed in parallel connection in order to keep the uniformity of the transverse distribution of air speed. The tail end of the air supply pipeline has a turn of 180 DEG, so that the diversion of the airflow is realized.
Description
Technical field
The invention belongs to plucking on the agricultural machinery harvesting equipment and take off device.
Technical background
Pluck before cutting to take off under the state that the cereal that is meant the field keeps standing before not being cut and take off device and directly carry out threshing, pluck the inside that the cereal of taking off enters machine, take off, separate, clean operation etc. again by plucking.It is the emphasis of research that the shattering loss of taking off device is plucked in reduction.The objective of the invention is on the basis of existing device,, increase the air velocity of feeding mouth and guard shield inboard, reduce the spatter loss of cereal by setting up the mode of the auxiliary air-supply arrangement of air-sweeping type plucking the front portion of taking off device.
Summary of the invention
The purpose of this invention is to provide to pluck before a kind of air-blowing assist type cereal cuts and take off device, it takes off cylinder, guard shield, flow tank, lateral transfer screw feeder and forms by plucking, and carries out threshing, blows fortune and carry.Plucking when taking off cylinder cereal being carried out threshing, seed can splash everywhere at the feeding mouth place, can produce swirling eddy though pluck when taking off the cylinder rotation, and the air velocity in the outside near guard shield inwall place obviously reduces, and produces bigger spatter loss.In order to strengthen air-flow velocity, to reduce spatter loss, introduced the auxiliary air-supply arrangement of air-sweeping type, improved the air velocity distribution state of guard shield inside, increased air-flow velocity, reduced spatter loss.
For achieving the above object, the concrete technical scheme of the present invention's employing is as follows:
The auxiliary air-supply arrangement of air-sweeping type is plucked in conjunction with the cereal of screw feeder lateral transfer and is taken off device, takes off cylinder, centrifugal blower, air supply duct, guard shield, flow tank, lateral transfer screw feeder etc. and partly forms by plucking.Take off cylinder (1) and carry out direct threshing by plucking under the situation that the cereal in field keeps standing before not being cut, the seed that takes off moves backward along guard shield (4) inwall, simultaneously, the high velocity air seed that drive is taken off through air supply duct (2) that is produced by centrifugal blower (3) moves in flow tank, gas is discharged from exhaust outlet (7), after seed is deposited to flow tank, by the put out cereal mouth of screw feeder (9) lateral transfer to a side or central authorities.Air-sweeping type assists air-supply arrangement (2) to be made up of centrifugal fan, air supply duct etc.For keeping the uniformity of auxiliary air-supply arrangement (2) the wind speed cross direction profiles of air-sweeping type, adopt a plurality of fan parallel-connections to install.The end of air supply duct is half-turn, realizes being blown into turning to of air-flow.
Advantage of the present invention and good effect
Pluck before cutting and take off device and take off device with traditional full feed type with plucking of semi-feeding type cereal combine and compare, have operating speed height, characteristics that efficient is high, obviously reduced the straw treating capacity of subsequent job link, but, pluck and take off device under the effect that does not have secondary air, air velocity near guard shield inwall place is lower, produces bigger seed spatter loss.Indoor experimental study result shows, by setting up the mode of the auxiliary air-supply arrangement of air-sweeping type plucking the front portion of taking off device, feeding mouth improved more than the 2m/s near the air velocity at guard shield inwall place, obviously reduced the spatter loss of cereal.
Embodiment:
The auxiliary air-supply arrangement of air-sweeping type is plucked in conjunction with the cereal of screw feeder lateral transfer and is taken off device, takes off cylinder (1), centrifugal blower (3), air supply duct (2), flow tank (8), lateral transfer screw feeder parts such as (9) and forms by plucking.Its working method is: take off cylinder (1) and carry out direct threshing by plucking under the situation that the cereal in field keeps standing before not being cut, the seed that takes off moves backward along guard shield (4) inwall, simultaneously, the high velocity air seed that drive is taken off through air supply duct (2) that is produced by centrifugal blower (3) moves in flow tank (8), gas is discharged from exhaust outlet (7), seed is deposited in the sedimentation casing, by the put out cereal mouth of screw feeder (9) lateral transfer to a side or central authorities.
The auxiliary air-supply arrangement of air-sweeping type is made up of centrifugal fan, air supply duct etc., in order to keep the uniformity of wind speed cross direction profiles, adopts a plurality of fan parallel-connections to install.Centrifugal fan is made up of belt pulley (1), bearing (2), axle (3), spiral case group (4), impeller sets (5) etc., referring to Fig. 2, during blower fan work, drive axle (3) rotation by belt pulley (1), thereby make last each impeller (5) rotation, air to entering impeller, produces acceleration from the two end axles of each impeller under the centrifugal action of impeller (5).Owing to adopted the parallel connection of a plurality of blower fans,, reduced wind speed cross direction profiles inhomogeneities because of the wide generation of draught fan impeller simultaneously from the two ends air inlet.The end (4) of air supply duct (1) is half-turn, referring to Fig. 3, realizes being blown into turning to of air-flow by centrifugal blower.Support in order to strengthen guard shield and air supply duct, further improve the cross direction profiles of air-flow simultaneously, install dividing plate (3) in ajutage inside additional.
Description of drawings:
Fig. 1 plucks and takes off device
Fig. 2 air-sweeping type is assisted air-supply arrangement
Fig. 3 air supply duct
Claims (4)
1. the auxiliary air-supply arrangement of air-sweeping type is in conjunction with the grain harvest device of screw feeder lateral transfer, take off cylinder, guard shield, flow tank, lateral transfer screw feeder etc. and partly form by plucking, it is characterized in that: comprise that also air-sweeping type assists air-supply arrangement, this device is made up of centrifugal blower and air supply duct, and the field seed that crop plucked after taking off of standing enters in the flow tank under the air-flow booster action that the auxiliary air-supply arrangement of air-sweeping type produces backward.
2. the auxiliary air-supply arrangement of air-sweeping type according to claim 1 is plucked in conjunction with the cereal of screw feeder lateral transfer and is taken off device, it is characterized in that: take off cylinder (1) and carry out direct threshing by plucking under the situation that the cereal in field keeps standing before not being cut, the seed that takes off moves backward along guard shield (4) inwall, simultaneously, the high velocity air that is produced by centrifugal blower (3) turns to through air supply duct (2) and enters by guard shield (4) and pluck in the threshing chamber that takes off between cylinder (1), the seed that drive is taken off moves in flow tank (8), gas is discharged from exhaust outlet (7), seed is deposited in the sedimentation casing, by the put out cereal mouth of screw feeder (9) lateral transfer to a side or central authorities.
3. the auxiliary air-supply arrangement of air-sweeping type according to claim 1 is made up of centrifugal blower and air supply duct, it is characterized in that: in order to keep the uniformity of wind speed cross direction profiles, adopt a plurality of fan parallel-connections to install.
4. require described air-sweeping type to assist air-supply arrangement according to right 1, it is characterized in that the end of air supply duct is half-turn, realize turning to of air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073336XA CN102132650A (en) | 2009-12-03 | 2009-12-03 | Grain threshing device with air blowing type auxiliary air supply device in combination with transverse conveying of auger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200910073336XA CN102132650A (en) | 2009-12-03 | 2009-12-03 | Grain threshing device with air blowing type auxiliary air supply device in combination with transverse conveying of auger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102132650A true CN102132650A (en) | 2011-07-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200910073336XA Pending CN102132650A (en) | 2009-12-03 | 2009-12-03 | Grain threshing device with air blowing type auxiliary air supply device in combination with transverse conveying of auger |
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| CN (1) | CN102132650A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518489A (en) * | 2013-10-11 | 2014-01-22 | 华中农业大学 | Method and device for collecting field falling grains of oilseed rape combine harvester |
-
2009
- 2009-12-03 CN CN200910073336XA patent/CN102132650A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103518489A (en) * | 2013-10-11 | 2014-01-22 | 华中农业大学 | Method and device for collecting field falling grains of oilseed rape combine harvester |
| CN103518489B (en) * | 2013-10-11 | 2016-01-20 | 华中农业大学 | A kind of field shattering collection method of rape combined harvester and device |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110727 |