CN201042701Y - Agricultural taper type centrifugal fan - Google Patents
Agricultural taper type centrifugal fan Download PDFInfo
- Publication number
- CN201042701Y CN201042701Y CNU2006201074249U CN200620107424U CN201042701Y CN 201042701 Y CN201042701 Y CN 201042701Y CN U2006201074249 U CNU2006201074249 U CN U2006201074249U CN 200620107424 U CN200620107424 U CN 200620107424U CN 201042701 Y CN201042701 Y CN 201042701Y
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- fan
- impeller
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- rotating shaft
- fan casing
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Abstract
The utility model provides an agricultural conical centrifugal fan used with a full-feed rice-wheat combined harvester to clean grains. The utility model is designed to overcome the disadvantage of the prior art that the wind pressure, wind speed and wind rate at the fan outlet are equal, resulting in small wind pressure, speed and rate in the position where the cleaning capacity is large and poor cleaning effect. The agricultural conical centrifugal fan has simple structure, reliable operation, and difference in impeller semi-diameter in axial direction of the fan. The utility model comprises an impeller, a fan shell, a rotating shaft, spokes, a secondary impeller, a secondary fan shell, and a vibrating screen, wherein the conical centrifugal fan runs based on air intake at two lateral sides, the impeller comprises the blade spokes and fan blades, the plurality of fan blades different in length are individually fixed on the rotating shaft by the spokes and screws, the fan shell is coupled with the secondary fan shell, the fan shell is matched with the impeller, and the fan shell and the secondary fan shell are both fixed on a frame.
Description
Technical field
The utility model belongs to agricultural machinery technological field, particularly a kind ofly is used for the agricultural taper cone type centrifugal fan that full feeding rice wheat combine upper valley thing is cleaned.
Background technology
All adopt horizontal axial flow threshing separation facility on the full feeding rice wheat combine at present, this device is become with the grid-type concave screen banks by threshing cylinder, takes off and draws drum shaft vertical with the direction of machine travel.During machinery operation, after crop radially feeds from the axial-flow type drum right-hand member, move to left end on threshing limit, limit in the threshing cylinder of rotation at a high speed, cane after threshing is discharged at the left end straw outlet, and the seed that takes off, clever shell and short cane etc. are under action of centrifugal force, pass through the grid-type concave sieve that places below the axial-flow type drum, along on the vibratory sieve below of cylinder axis direction whereabouts, and under the centrifugal fan air-flow acting in conjunction that places the vibratory sieve front lower place, emersion object is cleaned, foreign material are blown outside the machine, and seed is delivered to the collection tanker through collection.Experiment shows that crop enters into left end from the axial-flow type drum right-hand member and discharges, and the quantity that drops on the emersion object on the vibrating screen surface is unequal along the axial-flow type drum axis direction, the upstream end right-hand member is maximum, the outlet side left end is minimum, be linear basically and descend, so cleaning load is uneven on the vibratory sieve.Centrifugal fan is the core work parts of cleaning plant, existing its blower fan axle of centrifugal fan that is used on the full feeding rice wheat combine is parallel with the axial-flow type drum axle, blower fan width and vibratory sieve are wide, air outlet is facing to whole compass screen surface, in the whole width range of blower fan, running parameters such as structural parameters such as its fan blade radius and rotating speed are identical, and therefore existing outlet blast, wind speed and the air quantity that is used for centrifugal fan on the full feeding rice wheat combine is all the same.But it is to being different in the face of cleaning thing, and it is less than normal therefore to clean the many position airflow pressure wind speed of thing, cleans endless, and cleans the few position of thing, too big again, not only increases cleaning loss, has also wasted wind energy, has increased energy consumption.
Summary of the invention
The utility model at existingly be used on the full feeding rice wheat combine the existing above-mentioned blower fan outlet blast of centrifugal fan, wind speed is all the same with air quantity, cause that to clean the many position airflow pressure wind speed of thing less than normal, clean endless, and clean the few position of thing, the airflow pressure wind speed is too big again, not only increase cleaning loss, also wasted wind energy, increased the weak point of energy consumption, provide a kind of simple in structure, reliable operation, along the different agricultural taper cone type centrifugal fan of blower fan direction of principal axis impeller radius.
The technical scheme that the agricultural taper cone type centrifugal fan of the utility model adopts is finished in the following way: agricultural taper cone type centrifugal fan comprises impeller, Fan casing, rotating shaft, spoke, secondary impeller, secondary Fan casing, vibratory sieve, wherein, agricultural taper cone type centrifugal fan adopts the two sided air intake, and impeller and secondary impeller are made up of blade spoke and fan blade; The fan blade that some leaf length do not wait is separately fixed at the left and right sides of rotating shaft by spoke and bolt; Fan casing and secondary Fan casing are linked together, and Fan casing matches with impeller, and secondary Fan casing matches with secondary impeller, and Fan casing and secondary Fan casing are fixed on the frame; Be respectively equipped with left air inlet, middle air inlet, right air inlet on left side, centre, the right side of blower fan, on blower fan, be provided with air outlet; Rotating shaft on frame, is equipped with sprocket wheel at rotating shaft one end by bearing fixing, and blower fan is driven by sprocket wheel by outer power.
The utility model is compared with the existing centrifugal fan that is used on the full feeding rice wheat combine, has simple in structure, reliable operation, along blower fan direction of principal axis impeller radius different characteristics, in addition, use the utility model and need not change full feeding rice wheat combine blower fan installation site and blower fan shaft size, manufacturing cost increases few.
Description of drawings
Fig. 1 is the structural representation of agricultural taper cone type centrifugal fan.
Fig. 2 is the A-A cutaway view of Fig. 1.
Fig. 3 is the structural representation of vibratory sieve
Fig. 4 is the vertical view of Fig. 3.
The specific embodiment
Contrast accompanying drawing below, the utility model is described in further detail by embodiment.
With reference to accompanying drawing 1 and accompanying drawing 4, a kind ofly be used for the agricultural taper cone type centrifugal fan that full feeding rice wheat combine upper valley thing is cleaned, this blower fan adopts twin-stage impeller parallel-connection structure, it comprises impeller 3, Fan casing 5, rotating shaft 6, spoke 8, secondary impeller 9, secondary Fan casing 11, vibratory sieve 16, wherein agricultural taper cone type centrifugal fan adopts the two sided air intake, impeller 3 is made up of blade spoke 8 and fan blade 4, secondary impeller 9 is made up of blade spoke 8 and fan blade 10, and the fan blade 10 that fan blade 4 and the some leaf length that some leaf length do not wait or not is separately fixed at the left and right sides of rotating shaft 6 by spoke 8 and bolt 14; Fan casing 5 is linked together with secondary Fan casing 11, and Fan casing 5 matches with impeller 3, and secondary Fan casing 11 matches with secondary impeller 9, and Fan casing 5 is fixed on the frame with secondary Fan casing 11; Be respectively equipped with left air inlet 2, middle air inlet 7, right air inlet 12 on left side, centre, the right side of blower fan, on blower fan, be provided with air outlet 15; Rotating shaft 6 is fixed on the frame by bearing 1, at an end of rotating shaft 6 sprocket wheel 13 is housed, and blower fan is driven by sprocket wheel 13 by outer power.
When machinery operation, outer power drives by sprocket wheel 13, fan blade 4 and fan blade 10 high speed rotating, and wind blows on the vibratory sieve 16 from air outlet 15, and under the synergy of wind-force and vibratory sieve 16, emersion object 17 is cleaned.Blower fan major part air pressure air flow wind speed is big, adapts to the many emersion objects 17 of accumulation and advances separating cleaning.Because air-flow V blow-off direction is vertical with fan blade 10 with fan blade 4, so can be decomposed into V
1And V
2, V
1Clever shell in the emersion object 17 and impurity vertically can be blown out outside the machine V
2It is uniform to help mixture to carry out plane of structure, cleans quality thereby improve; The pyramid type blower fan is from the major part to microcephaly, and its airflow pressure wind speed dwindles and progressively reduces with blade diameter, therefore makes air-flow V
2Uniform effect become possibility, the other end of blower fan is the circular cone microcephaly, its correspondence be the few end of emersion object 17, less air pressure air flow and wind speed can satisfy cleans requirement, has also saved energy consumption.Therefore compare with traditional column type blower fan, the pyramid type blower fan has uniform vibrating screen surface load and improves the characteristics of cleaning quality and rationally utilizing the wind-force energy efficient.
Claims (2)
1. agricultural taper cone type centrifugal fan, it is characterized in that this blower fan comprises impeller, Fan casing, rotating shaft, spoke, secondary impeller, secondary Fan casing, vibratory sieve, wherein impeller and secondary impeller are made up of blade spoke and fan blade, the fan blade that some leaf length do not wait is separately fixed at the left and right sides of rotating shaft by spoke and bolt, Fan casing and secondary Fan casing are linked together, Fan casing matches with impeller, secondary Fan casing matches with secondary impeller, Fan casing and secondary Fan casing are fixed on the frame, left side at blower fan, middle, the right side is respectively equipped with left air inlet, middle air inlet, right air inlet, on blower fan, be provided with air outlet, rotating shaft by bearing fixing on frame.
2. agricultural taper cone type centrifugal fan according to claim 1 is characterized in that at an end of rotating shaft sprocket wheel being housed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201074249U CN201042701Y (en) | 2006-09-06 | 2006-09-06 | Agricultural taper type centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2006201074249U CN201042701Y (en) | 2006-09-06 | 2006-09-06 | Agricultural taper type centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201042701Y true CN201042701Y (en) | 2008-04-02 |
Family
ID=39257588
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2006201074249U Expired - Fee Related CN201042701Y (en) | 2006-09-06 | 2006-09-06 | Agricultural taper type centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201042701Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138761B (en) * | 2006-09-05 | 2010-05-26 | 金华职业技术学院 | Taper cone type centrifugal fan |
| CN102362571A (en) * | 2011-06-20 | 2012-02-29 | 曹安柏 | Pulse controller for wheatear conveying airflow of high-speed combine harvesting, planting and managing machine |
| CN105423991A (en) * | 2015-12-31 | 2016-03-23 | 金华职业技术学院 | Fan blade taper testing method |
| CN105830670A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Cleaning device for combine harvester |
| CN105830630A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Cleaning and conveying device for combine harvester |
| CN105830632A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Threshing device for combine harvester |
| CN109070141A (en) * | 2016-02-11 | 2018-12-21 | 苏伊士集团 | Screening machine |
-
2006
- 2006-09-06 CN CNU2006201074249U patent/CN201042701Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101138761B (en) * | 2006-09-05 | 2010-05-26 | 金华职业技术学院 | Taper cone type centrifugal fan |
| CN102362571A (en) * | 2011-06-20 | 2012-02-29 | 曹安柏 | Pulse controller for wheatear conveying airflow of high-speed combine harvesting, planting and managing machine |
| CN102362571B (en) * | 2011-06-20 | 2015-09-30 | 曹安柏 | High-speed combine harvesting, planting supervisor wheat head delivery air impulse controller |
| CN105423991A (en) * | 2015-12-31 | 2016-03-23 | 金华职业技术学院 | Fan blade taper testing method |
| CN105830670A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Cleaning device for combine harvester |
| CN105830630A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Cleaning and conveying device for combine harvester |
| CN105830632A (en) * | 2016-01-14 | 2016-08-10 | 金华职业技术学院 | Threshing device for combine harvester |
| CN105830630B (en) * | 2016-01-14 | 2020-09-15 | 金华职业技术学院 | Cleaning and conveying device for combine harvester |
| CN109070141A (en) * | 2016-02-11 | 2018-12-21 | 苏伊士集团 | Screening machine |
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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 |