CN106376300A - Grain harvester cleaning fan - Google Patents
Grain harvester cleaning fan Download PDFInfo
- Publication number
- CN106376300A CN106376300A CN201610717296.8A CN201610717296A CN106376300A CN 106376300 A CN106376300 A CN 106376300A CN 201610717296 A CN201610717296 A CN 201610717296A CN 106376300 A CN106376300 A CN 106376300A
- Authority
- CN
- China
- Prior art keywords
- discharge pipe
- blade
- fan shaft
- fan
- plane
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
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Classifications
-
- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01F—PROCESSING OF HARVESTED PRODUCE; HAY OR STRAW PRESSES; DEVICES FOR STORING AGRICULTURAL OR HORTICULTURAL PRODUCE
- A01F12/00—Parts or details of threshing apparatus
- A01F12/44—Grain cleaners; Grain separators
- A01F12/442—Rotary cleaners
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention provides a gain harvester cleaning fan comprising a frame, a fan shaft, blades, a shield, end covers, an air duct, and guide plates; the end covers are arranged on two ends of the shield; the fan shaft is connected on end cover inner walls through bearing seats on two ends and the frame, and fixedly provided with a rack; the blades are connected with the fan shaft through the rack; the air duct is welded on the opening of the shield; the features are that 3-6 blades are arranged, and the outer edge of the blade is an oval curve, i.e., the middle portion is narrow and two ends are wide; or the outer edge of the blade bends upwards; the cross section of the air duct is in a rectangular shape; an air duct central vertical plane in the air duct wind outlet direction is a plane of symmetry; guide plates are symmetrically fixed on the bottom of the air duct inner wall in a radial manner; two guide plates adjacent to the plane of symmetry form a 5-8 degree angle. The gain harvester cleaning fan is even in air outlet wind power, good in cleaning effect, and less in loss.
Description
Technical field
The present invention relates to a kind of grain harvesting machine cleaning fan, belong to agricultural machinery technological field.
Background technology
Cleaning and sorting system damages to harvesting as one of the four big core components of grain harvesting machine, the uniformity of its discharge pipe wind-force
Mistake has a great impact.At present, because this cleaning fan mostly is straight blades, lead to wind-force in the middle part of discharge pipe excessive, directly will
Seed blows out sorting screen；And both sides are less due to being limited wind-force by structure, lead to seed to be mixed in Ying shell short grass to be difficult to point
Separating out, so that seed is discharged outside machine with disconnected grass, Ying's shell, thus increased plus band loss, and reducing grain harvest
Machine clean effect.
A kind of blower fan structure (201320268791.7) of the united reaper disclosed in Chinese utility model is special employs
The air motion direction to improve blower fan for the method for increase Fan Regulation plate, realizes cleaning the improvement of effect, but the method is simultaneously
Do not change the uniform effect of blower fan discharge pipe it is difficult to realize the uniformity of sorting screen width air quantity it is also difficult to improve clear
The entrainment loss selecting effect and reducing watering and separation procedure；Also have and fan blade is improved, such as Chinese utility model patent is announced
A kind of turbine washing equipment (201220450119.5) being applied on united reaper employ blower fan be changed to turbine type
Structure, each blade is arcuate structure, thus strengthening the guided bone of air-flow, its essence is and increased air velocity, not
Have and realize the uniform of discharge pipe air quantity.
Content of the invention
It is an object of the invention to provide one kind can overcome drawbacks described above, strengthen discharge pipe air velocity, to improve air-flow horizontal
The grain harvesting machine cleaning fan of distributing homogeneity.Its technical scheme is as follows：
A kind of grain harvesting machine cleaning fan, including frame, fan shaft, blade, case, end cap, discharge pipe and water conservancy diversion
Plate, wherein end cap are installed on the two ends of case, and fan shaft is connected on end cap inwall by the bearing block at two ends and frame, blower fan
Support is fixed with axle, blade is connected with fan shaft by support, discharge pipe be welded at the opening of case it is characterised in that：
Blade has 3～6, and the outer of blade is in elliptic curve, and middle part is narrow, two ends width, and the cross section of discharge pipe is rectangular, along air-out
The air-out tube hub vertical plane of pipe air-out direction is the plane of symmetry, the radial bottom being symmetrically fixed on air-out inside pipe wall of deflector
Portion, and two deflectors near the plane of symmetry become 5～8 degree of angles.
The object of the invention can also be realized by another kind of scheme.
A kind of grain harvesting machine cleaning fan, including frame, fan shaft, blade, case, end cap, discharge pipe and water conservancy diversion
Plate, wherein end cap are installed on the two ends of case, and fan shaft is connected on end cap inwall by the bearing block at two ends and frame, blower fan
Support is fixed with axle, blade is connected with fan shaft by support, discharge pipe be welded at the opening of case it is characterised in that：
Blade has 3～6, and the outer end of blade is folded upward at, and the cross section of discharge pipe is rectangular, along the air-out of discharge pipe air-out direction
Tube hub vertical plane is the plane of symmetry, the radial bottom being symmetrically fixed on air-out inside pipe wall of deflector, and near the plane of symmetry
Two deflectors become 5～8 degree of angles.
Its operation principle is：During grain harvest machine operation, the power of engine drives fan shaft high-speed rotation by belt wheel,
Fan shaft drives the uniform blade of circumference to carry out high-speed rotation by support, and blade drives air-flow, and also high-speed rotation is got up.When adopting
When being in elliptic curve technical scheme with the outer of blade, the air velocity distribution of formation has the spy that both sides air pressure is big, middle part air pressure is little
Point, when air-flow with blade movement to discharge pipe position when, be subject to the effect of deflector further so as to more air-flow guides out
The both sides of airduct, relatively small number of air-flow is discharged by middle part, thus improving the uniformity that air-flow is distributed in fan outlet.When adopting
During the technical scheme being folded upward at blade outer end, the effect to air-flow to blade can be strengthened, increase the exhaust air rate of blower fan.Row
Wind, in the presence of discharge pipe deflector, makes air-flow be uniformly distributed along discharge pipe, thus substantially improving clear grain effect, decreases
The entrainment loss of clear grain process, also improves the adaptability to different grain harvests for the harvester.
Compared with prior art, its advantage is the present invention：
(1) outer is in the blade of elliptic curve, and the air velocity distribution of formation has the spy that both sides air pressure is big, middle part air pressure is little
Point, is conducive to being uniformly distributed of air draft.
(2) because the outlet of this cleaning fan is provided with the radial deflector of a composition, and two, middle part is welded with 5～8 ° of angles
Combination deflector together, further improves air-flow being uniformly distributed along blower fan discharge pipe.
(3) this cleaning fan can clean the replacing of object implementatio8 blade according to difference, improve and change the suitable of cleaning fan
Ying Xing.
Brief description
Fig. 1 removes the structural representation of one end end cap for blade outer of the present invention in Elliptic Curve Embodiment 1；
Fig. 2 is the A-A sectional view of embodiment illustrated in fig. 11；
Fig. 3 is bent up, for blade outer end of the present invention, the structural representation that embodiment 2 removes one end end cap；
Fig. 4 is the B-B sectional view of embodiment illustrated in fig. 22.
In figure：1st, frame 2, fan shaft 3, blade 4, case 5, end cap 6, discharge pipe 7 deflector 8, bearing block
9th, support
Specific embodiment
The present invention will be further described below in conjunction with the accompanying drawings.
In embodiment 1 shown in Fig. 1-2, end cap 5 is installed on the two ends of case 4, the bearing block by two ends for the fan shaft 2
8 are connected on end cap 5 inwall with frame 1, fan shaft 2 are fixed with support 9, blade 3 is connected with fan shaft 2 by support 9, goes out
Airduct 6 is welded at the opening of case 4,3, blade, and the outer of blade 3 is in elliptic curve, and middle part is narrow, two ends width, discharge pipe
6 cross section is rectangular, and the discharge pipe 6 center vertical plane along discharge pipe 6 air-out direction is the plane of symmetry, and deflector 7 is radial
It is symmetrically fixed on the bottom of discharge pipe 6 inwall, and 5～8 degree of angles of two 7 one-tenth of deflectors near the plane of symmetry.
Embodiment 2 shown in Fig. 3-4 basic with embodiment 1, simply the outer end of blade 3 is folded upward at.
Claims (2)
1. a kind of grain harvesting machine cleaning fan, including frame (1), fan shaft (2), blade (3), case (4), end cap (5),
Discharge pipe (6) and deflector (7), wherein end cap (5) are installed on the two ends of case (4), the bearing block by two ends for the fan shaft (2)
(8) be connected on end cap (5) inwall with frame (1), fan shaft (2) be fixed with support (9), blade (3) pass through support (9) with
Fan shaft (2) is connected, discharge pipe (6) be welded at the opening of case (4) it is characterised in that：Blade (3) has 3～6, and leaf
The outer of piece (3) is in elliptic curve, and middle part is narrow, two ends width, and the cross section of discharge pipe (6) is rectangular, along discharge pipe (6) air-out side
To discharge pipe (6) center vertical plane be the plane of symmetry, the radial bottom being symmetrically fixed on discharge pipe (6) inwall of deflector (7)
Portion, and two deflectors (7) near the plane of symmetry become 5～8 degree of angles.
2. a kind of grain harvesting machine cleaning fan, including frame (1), fan shaft (2), blade (3), case (4), end cap (5),
Discharge pipe (6) and deflector (7), wherein end cap (5) are installed on the two ends of case (4), the bearing block by two ends for the fan shaft (2)
(8) be connected on end cap (5) inwall with frame (1), fan shaft (2) be fixed with support (9), blade (3) pass through support (9) with
Fan shaft (2) is connected, discharge pipe (6) be welded at the opening of case (4) it is characterised in that：Blade (3) has 3～6, and leaf
The outer end of piece (3) is folded upward at, and the cross section of discharge pipe (6) is rectangular, along along the discharge pipe (6) of discharge pipe (6) air-out direction
Heart vertical plane is the plane of symmetry, the radial bottom being symmetrically fixed on discharge pipe (6) inwall of deflector (7), and near the plane of symmetry
Two deflectors (7) become 5～8 degree of angles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717296.8A CN106376300B (en) | 2016-08-25 | 2016-08-25 | Cleaning fan for grain harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610717296.8A CN106376300B (en) | 2016-08-25 | 2016-08-25 | Cleaning fan for grain harvester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106376300A true CN106376300A (en) | 2017-02-08 |
| CN106376300B CN106376300B (en) | 2020-06-26 |
Family
ID=57916965
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610717296.8A Active CN106376300B (en) | 2016-08-25 | 2016-08-25 | Cleaning fan for grain harvester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106376300B (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2063037B (en) * | 1979-11-14 | 1983-05-18 | Sperry Nv | Combine harvesters |
| CN202068753U (en) * | 2011-04-27 | 2011-12-14 | 山东金亿机械制造有限公司 | Fan for corn husker |
| CN202385443U (en) * | 2011-12-15 | 2012-08-15 | 国电南瑞科技股份有限公司 | Wind guiding blades capable of realizing uniform heat dissipation of power cabinet |
| CN202432613U (en) * | 2012-01-16 | 2012-09-12 | 珠海格力电器股份有限公司 | Internal machine of air-conditioner and air-conditioner comprising same |
| CN202707523U (en) * | 2012-08-24 | 2013-01-30 | 席沅胜 | Centrifugal fan for corn harvester |
| CN203537914U (en) * | 2013-11-06 | 2014-04-16 | 奇瑞重工浙江有限公司 | Grain cleaning system for longitudinal axial-flow type harvester |
| CN104564811A (en) * | 2015-02-25 | 2015-04-29 | 胡国贤 | Fan blade and wind wheel provided therewith |
| CN105875077A (en) * | 2016-04-13 | 2016-08-24 | 济南大学 | Double-layer sieve plate type corn harvester cleaning device |
-
2016
- 2016-08-25 CN CN201610717296.8A patent/CN106376300B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2063037B (en) * | 1979-11-14 | 1983-05-18 | Sperry Nv | Combine harvesters |
| CN202068753U (en) * | 2011-04-27 | 2011-12-14 | 山东金亿机械制造有限公司 | Fan for corn husker |
| CN202385443U (en) * | 2011-12-15 | 2012-08-15 | 国电南瑞科技股份有限公司 | Wind guiding blades capable of realizing uniform heat dissipation of power cabinet |
| CN202432613U (en) * | 2012-01-16 | 2012-09-12 | 珠海格力电器股份有限公司 | Internal machine of air-conditioner and air-conditioner comprising same |
| CN202707523U (en) * | 2012-08-24 | 2013-01-30 | 席沅胜 | Centrifugal fan for corn harvester |
| CN203537914U (en) * | 2013-11-06 | 2014-04-16 | 奇瑞重工浙江有限公司 | Grain cleaning system for longitudinal axial-flow type harvester |
| CN104564811A (en) * | 2015-02-25 | 2015-04-29 | 胡国贤 | Fan blade and wind wheel provided therewith |
| CN105875077A (en) * | 2016-04-13 | 2016-08-24 | 济南大学 | Double-layer sieve plate type corn harvester cleaning device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106376300B (en) | 2020-06-26 |
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