CN102823390B - Threshing and cleaning device of longitudinal axial flow combine-harvester - Google Patents

Threshing and cleaning device of longitudinal axial flow combine-harvester Download PDF

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Publication number
CN102823390B
CN102823390B CN201210250990.5A CN201210250990A CN102823390B CN 102823390 B CN102823390 B CN 102823390B CN 201210250990 A CN201210250990 A CN 201210250990A CN 102823390 B CN102823390 B CN 102823390B
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China
Prior art keywords
threshing
feed plate
drip feed
concave grate
axial flow
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CN201210250990.5A
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Chinese (zh)
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CN102823390A (en
Inventor
李金泉
冯云云
蔡建中
钱菊平
冯涛
顾伟
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Xingguang Agricultural Machine Co Ltd
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Xingguang Agricultural Machine Co Ltd
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Priority to CN201210250990.5A priority Critical patent/CN102823390B/en
Publication of CN102823390A publication Critical patent/CN102823390A/en
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Abstract

The invention discloses a threshing and cleaning device of a longitudinal axial flow combine-harvester. The threshing and cleaning device comprises a threshing roller, a concave grid, a plane vibrating screen and a fan, and a guide transition device which inclines and is low in the front part and high in the rear part is arranged between the concave grid and the rear part of the plane vibrating screen. The threshing and cleaning device has the beneficial effects that the concave grid which is horizontally arranged originally is changed to be low in front part and high in rear part; the guide transition device which inclines and is low in the front part and high in the rear part is arranged between the concave grid and the rear part of the plane vibrating screen, so that the material at the rear half section on the concave grid firstly falls on the guide transition device and then falls on the front half part of the plane vibrating screen; not only is the loss caused by the situation that grains falling from the rear part of the concave grid are blown off and vibrated outside the device effectively eliminated, but also a part of material is cleaned again on the guide transition device, thereby reducing the load of the plane vibrating screen and improving the cleaning efficiency and the qualified rate.

Description

A kind of threshing cleaning unit of longitudinal axial flow combine
Technical field
the present invention relates to a kind of threshing cleaning unit of combine.
Background technology
the threshing cleaning unit of existing longitudinal axial flow combine, the semi arch concave grate of the threshing cylinder, ladle cover that the level that generally includes is installed outside threshing cylinder, is positioned at plane vibration sieve and blower fan below concave grate.In watering and separation procedure, due to vibration and the blower fan blowing backward of sorting screen, the partial material that often makes concave grate rear portion fall is failed to fall plane vibration sieve and is above directly fallen into field, causes damage.
Summary of the invention
object of the present invention, is the above-mentioned shortcoming that the threshing cleaning unit for overcoming existing longitudinal axial flow combine exists, and carries out technological improvement, thereby a kind of threshing cleaning unit of the longitudinal axial flow combine that cleaning efficiency is high, cleaning loss percentage is low is provided.
the technical scheme that realizes above-mentioned purpose is: a kind of threshing cleaning unit of longitudinal axial flow combine, comprise threshing cylinder, concave grate, plane vibration sieve and blower fan, the guide transition apparatus of low early and high after inclination is installed between described concave grate and plane vibration sieve rear portion, the driving mechanism that described guide transition apparatus is made front-rear reciprocation movement and up-down vibration by drip feed plate and drive drip feed plate forms, described drip feed plate is that both sides are provided with vertical rib, the central longitudinal that width is slightly larger than described concave grate diameter is to recessed and be the bell-mouthed plate that drops down wide at the top and narrow at the bottom, the driving mechanism of described drive drip feed plate motion comprises and passes the vertical rib leading section in drip feed plate both sides and be fixed on the front axle in frame, be installed on drip feed plate rear portion bottom the rear axle parallel with front axle and be installed on the drive sprocket on rear axle one end by bearing block, sprocket wheel on the power transmission shaft that described drive sprocket sieves with plane vibration is connected by chain, eccentric adjusting piece is installed on described drive sprocket.
as preferably, the angle α between described drip feed plate plane vibration sieve is 10~40 degree.
as preferably, described threshing cylinder and concave grate are low early and high after inclination to be installed, and the central axis of threshing cylinder and concave grate and horizontal angle are 10~40 to spend.
beneficial effect of the present invention: owing to changing the concave grate of former horizontal setting into low early and high after arrangement, and sieve at concave grate and plane vibration the guide transition apparatus that low early and high after inclination is installed between rear portion, make the second half section material on concave grate first fall the first half that drops to again plane vibration sieve on guide transition apparatus, so not only effectively having stopped the seed that concave grate rear portion falls is blown, shake is to installing loss outer and that cause, and partial material has obtained again cleaning on guide transition apparatus, thereby reduce the load of plane vibration sieve, cleaning efficiency and qualification rate are improved.
Brief description of the drawings
fig. 1 is structural representation of the present invention.
fig. 2 is guide transition apparatus structural representation of the present invention.
fig. 3 is the driving mechanism structure schematic diagram of guide transition apparatus.
Embodiment
below in conjunction with accompanying drawing, with embodiment, the invention will be further described.
a kind of threshing cleaning unit of longitudinal axial flow combine, comprises threshing cylinder 1, concave grate 2, plane vibration sieve 4 and blower fan 5.Described threshing cylinder 1 and concave grate 2 are low early and high after inclination to be installed, and its gradient is spent and is advisable taking the central axis of threshing cylinder 1 and concave grate 2 and horizontal angle as 10~40.Described concave grate 2 and plane vibration sieve the guide transition apparatus 3 that low early and high after inclination is installed between 4 rear portions, and the driving mechanism that described guide transition apparatus 3 is made front-rear reciprocation movement and up-down vibration by drip feed plate 7 and drive drip feed plate 7 forms.Described drip feed plate 7 is that both sides are provided with central longitudinal that vertical rib, width be slightly larger than described concave grate 2 diameters to recessed and be the bell-mouthed plate that drops down wide at the top and narrow at the bottom.And the driving mechanism that described drive drip feed plate 7 moves comprises and passes the drip feed plate 7 vertical rib leading sections in both sides and be fixed on the front axle 6 in frame, be installed on drip feed plate 7 rear portions bottoms the rear axle 8 parallel with front axle 6 and be installed on the drive sprocket 10 on rear axle 8 one end by bearing block 9, sprocket wheel on the power transmission shaft 14 of described drive sprocket 10 and plane vibration sieve 4 is connected by chain 13, and the sprocket wheel on the power transmission shaft 14 of plane vibration sieve 4 is connected with the sprocket wheel of conveying screw feeder power transmission shaft 12 by chain 13.Improve and clean effect in order to make drip feed plate 7 make the reciprocating while energy up-down vibration in left and right under driving mechanism drives as plane vibration sieve 4, spy is provided with eccentric adjusting piece 11 on described drive sprocket 10.The suitable gradient that described drip feed plate 7 is installed is taking the angle α between drip feed plate 7 and plane vibration sieve 4 as 10~40 degree are as suitable.
the course of work principle of this device is: band fringe straw is after threshing cylinder 1 threshing, stalk is discharged from threshing cylinder 1 rear portion, seed and some stalk fragments are fallen on concave grate 2, after concave grate 2 screenings, most of stalk chips float is at compass screen surface, the blower fan 5 that is installed in device leading section is taken concave grate out of to the wind of after-blow and is fallen field, and the seed material that is still entrained with stalk chip of concave grate 2 first halfs drops to the first half of vibratory sieve 4, the seed material of the latter half of concave grate 2 drops on guide transition apparatus 3, by the reciprocating motion of guide transition apparatus 3, make seed material fall uniformly the postmedian of plane vibration sieve 4, vibratory sieve 4 is also by moving back and forth, make seed and the layering of stalk chip, same under the blowing effect of blower fan 5, stalk chip is blown to field, finally cleaning clean seed drops on the screw feeder that plane vibration sieves 4 belows, be transported to grain header silo.

Claims (3)

1. a kind of threshing cleaning unit of longitudinal axial flow combine, comprise threshing cylinder (1), concave grate (2), plane vibration sieve (4) and blower fan (5), the guide transition apparatus (3) of low early and high after inclination is installed between described concave grate (2) and plane vibration sieve (4) rear portion, it is characterized in that the driving mechanism that described guide transition apparatus (3) is made front-rear reciprocation movement and up-down vibration by drip feed plate (7) and drive drip feed plate (7) forms, described drip feed plate (7) is that both sides are provided with vertical rib, the central longitudinal that width is slightly larger than described concave grate (2) diameter is to recessed and be the bell-mouthed plate that drops down wide at the top and narrow at the bottom, the driving mechanism of described drive drip feed plate (7) motion comprises and passes the vertical rib leading section in drip feed plate (7) both sides and be fixed on the front axle (6) in frame, be installed on drip feed plate (7) rear portion bottom the rear axle (8) parallel with front axle (6) and be installed on the drive sprocket (10) on rear axle (8) one end by bearing block (9), sprocket wheel on the power transmission shaft (14) of described drive sprocket (10) and plane vibration sieve (4) is connected by chain (13), eccentric adjusting piece (11) is installed on described drive sprocket (10).
2. a kind of threshing cleaning unit of longitudinal axial flow combine according to claim 1, is characterized in that the angle α between described drip feed plate (7) plane vibration sieve (4) is 10~40 degree.
3. a kind of threshing cleaning unit of longitudinal axial flow combine according to claim 1, it is characterized in that described threshing cylinder (1) and concave grate (2) are low early and high after inclination and install, the central axis of threshing cylinder (1) and concave grate (2) and horizontal angle are 10~40 degree.
CN201210250990.5A 2012-07-20 2012-07-20 Threshing and cleaning device of longitudinal axial flow combine-harvester Active CN102823390B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201210250990.5A CN102823390B (en) 2012-07-20 2012-07-20 Threshing and cleaning device of longitudinal axial flow combine-harvester

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201210250990.5A CN102823390B (en) 2012-07-20 2012-07-20 Threshing and cleaning device of longitudinal axial flow combine-harvester

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CN102823390A CN102823390A (en) 2012-12-19
CN102823390B true CN102823390B (en) 2014-10-01

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104365296B (en) * 2013-08-13 2016-06-29 莱恩农业装备有限公司 A kind of separating mechanism of harvester

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2354692A (en) * 1999-09-29 2001-04-04 Claas Selbstfahr Erntemasch Rotary threshing and separation unit
CN1336098A (en) * 2000-08-01 2002-02-20 克拉斯自行式收获机械有限公司 Intaking type blower used for combining threshing unit and separating unit
CN2894237Y (en) * 2006-05-23 2007-05-02 湖州丰源农业装备制造有限公司 Combine harvester threshing-separating device
CN200962743Y (en) * 2006-11-03 2007-10-24 泰州现代农业装备有限公司 Reciprocating vibrating sieve used for full feeding combine for harvesting rice and wheat
CN201238488Y (en) * 2008-06-19 2009-05-20 福田雷沃国际重工股份有限公司 Threshing and cleaning device of rice combine harvester
CN102282978A (en) * 2011-06-23 2011-12-21 中国水稻研究所 Longitudinal axial flow threshing device
CN202713980U (en) * 2012-07-20 2013-02-06 星光农机股份有限公司 Threshing and cleaning device for longitudinal axial flow combine harvester

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2354692A (en) * 1999-09-29 2001-04-04 Claas Selbstfahr Erntemasch Rotary threshing and separation unit
CN1336098A (en) * 2000-08-01 2002-02-20 克拉斯自行式收获机械有限公司 Intaking type blower used for combining threshing unit and separating unit
CN2894237Y (en) * 2006-05-23 2007-05-02 湖州丰源农业装备制造有限公司 Combine harvester threshing-separating device
CN200962743Y (en) * 2006-11-03 2007-10-24 泰州现代农业装备有限公司 Reciprocating vibrating sieve used for full feeding combine for harvesting rice and wheat
CN201238488Y (en) * 2008-06-19 2009-05-20 福田雷沃国际重工股份有限公司 Threshing and cleaning device of rice combine harvester
CN102282978A (en) * 2011-06-23 2011-12-21 中国水稻研究所 Longitudinal axial flow threshing device
CN202713980U (en) * 2012-07-20 2013-02-06 星光农机股份有限公司 Threshing and cleaning device for longitudinal axial flow combine harvester

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