CN206435451U - A kind of lossless grain rotary screen - Google Patents
A kind of lossless grain rotary screen Download PDFInfo
- Publication number
- CN206435451U CN206435451U CN201720007622.6U CN201720007622U CN206435451U CN 206435451 U CN206435451 U CN 206435451U CN 201720007622 U CN201720007622 U CN 201720007622U CN 206435451 U CN206435451 U CN 206435451U
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- CN
- China
- Prior art keywords
- screen drum
- sieve
- grain
- sieve aperture
- interior
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- 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.)
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Abstract
The utility model discloses a kind of lossless grain rotary screen, including frame, rotatable inclination screen drum is provided with frame, the screen drum is made up of coaxial interior screen drum and outer screen drum, the radial section of interior screen drum and outer screen drum is regular pentagon, the interior screen drum and outer screen drum are made up of screen drum skeleton and the sieve on screen drum skeleton, the sieve is made up of the rectangular steel plates for being stamped with sieve aperture, the sieve aperture is tubaeform sieve aperture, the sieve aperture is made up of tubaeform bending section with the extension straight length for protruding from steel plain, the lossless grain rotary screen is in the screening process to grain, sieve aperture edge will not cause to scratch to grain surface, damage, and primary screening just can remove thick impurity and thin impurity, grain is fully contacted in screen drum with compass screen surface, the quality of screening is good.
Description
Technical field
The utility model is related to a kind of grain storage and transportation machinery, especially a kind of rotary screen cleared up, screened for grain.
Background technology
Grain rotary screen is a kind of conventional grain storage and transportation machinery, for being screened to grain, removes impurity therein
And remnant.In order to increase the screening capacity and service life of grain rotary screen, punching press or brill sieve aperture system on steel plate are typically employed in
Into sieve plate, the sieve aperture edge of this sieve plate can form sharp right-angled edge, in the process of running grain surface is caused to scrape and scratched
It is bad, cause grain breakage, the quality of reduction grain.In addition, the rotary screen for being used for grain screening in the prior art is generally cylindrical shape
The simple trommel of sieve, the rotary screen of this structure can only be screened out simply under oversize and sieve when being screened to grain
Thing, the precision of screening is poor, also, when columnar screen drum is rotated, the grain in screen drum accumulates in screen drum arcuate bottom all the time
Portion, can cause the grain that part is located at upper strata just to flow directly out inclined sieve in the case where not contacted fully with screen drum wall
Cylinder, wherein the impurity being mingled with can not be screened out, influences the quality of screening.
Utility model content
The utility model technical problem to be solved is：A kind of lossless grain rotary screen is provided, the lossless grain rotary screen exists
To in the screening process of grain, sieve aperture edge will not be caused to scratch, damaged to grain surface, and primary screening can just be removed slightly
Impurity and thin impurity, grain are fully contacted in screen drum with compass screen surface, and the quality of screening is good.
The technical solution adopted for solving the technical problem：A kind of lossless grain rotary screen, including frame, are provided with frame
Rotatable screen drum, the screen drum is the inclination screen drum that feed end is high, discharge end is low, and support tube is provided with the feed end of screen drum
Circle, provided with the support roller station being engaged with support tube circle in frame, is provided with screen drum axle in the discharge end of screen drum, is set in frame
There is the screen drum bearing block being engaged with screen drum axle, the decelerator of driving screen drum rotation is additionally provided with frame, screen drum axle is with slowing down
Device output shaft is coupled by gear, and the screen drum is made up of coaxial interior screen drum and outer screen drum, the radial direction of interior screen drum and outer screen drum
Section is regular pentagon, sieve diameter of the sieve diameter more than outer screen drum of interior screen drum, the high-end composition charging aperture of interior screen drum,
The low side of interior screen drum constitutes thick impurities outlet, and the low side of outer screen drum constitutes grain delivery outlet, and the sieve aperture of outer screen drum barrel is constituted carefully
Impurities outlet, also sets the cleaning wind that the light impurities between interior screen drum and outer screen drum are blown out to screen drum from feed end in frame
Machine, the interior screen drum and outer screen drum are made up of screen drum skeleton and the sieve on screen drum skeleton, and the sieve is by being stamped with
The rectangular steel plates of sieve aperture are constituted, and the sieve aperture is tubaeform sieve aperture, and the sieve aperture edge on the inside of screen drum is provided with arc angling.
Improved as of the present utility model：The sieve is made up of the rectangular steel plates for being stamped with sieve aperture, and the sieve aperture is by loudspeaker
Shape bending section and the extension straight length composition for protruding from steel plain.
Beneficial effect：Lossless grain rotary screen of the present utility model includes machine as a result of the lossless grain rotary screen
Frame, is provided with rotatable screen drum, the screen drum is the inclination screen drum that feed end is high, discharge end is low, in screen drum in frame
Feed end is provided with support tube circle, provided with the support roller station being engaged with support tube circle in frame, is provided with the discharge end of screen drum
Screen drum axle, provided with the screen drum bearing block being engaged with screen drum axle in frame, is additionally provided with subtracting for driving screen drum rotation in frame
Fast device, screen drum axle is coupled with reducer output shaft by gear, and the screen drum is made up of coaxial interior screen drum and outer screen drum, interior sieve
The radial section of cylinder and outer screen drum is regular pentagon, and the sieve diameter of interior screen drum is more than the sieve diameter of outer screen drum, interior screen drum
High-end composition charging aperture, the low side of interior screen drum constitutes thick impurities outlet, and the low side of outer screen drum constitutes grain delivery outlet, outer screen drum
The sieve aperture of barrel constitutes thin impurities outlet, is also set in frame and blows the light impurities between interior screen drum and outer screen drum from feed end
Go out the cleaning blower fan of screen drum, the interior screen drum and outer screen drum are made up of screen drum skeleton and the sieve on screen drum skeleton, institute
Sieve is stated by punching press or drills the rectangular steel plates of sieve aperture and constitutes, the sieve aperture is tubaeform sieve aperture, the sieve aperture on the inside of screen drum
Edge is provided with the technical scheme of arc angling, grain is screened using two coaxial screen drums, primary screening is to remove
Thick impurity more than grain and the thin impurity less than grain, also, grain makees tumbling motion in screen drum, grain with
Compass screen surface is fully contacted, and impurity residual is few, and the quality of screening is good；Interior screen drum and outer screen drum are by screen drum skeleton and installed in screen drum skeleton
On sieve constitute allow in lossless grain rotary screen of the present utility model screen drum skeleton use light steel clod wash it is compressing,
Frock molding is done, and has the advantages that tensile strength height, reliable in mechanical performance, and can reduce screen drum weight, is mitigated screen drum and is turned
The inertia of movable property life, improves running accuracy, it is ensured that screen drum operates steadily, and further increases screening quality；As a result of institute
State sieve to be made up of the rectangular steel plates for being stamped with sieve aperture, the sieve aperture is tubaeform sieve aperture, and the sieve aperture edge on the inside of screen drum is set
There is the technical characteristic of arc angling, overcome the right-angled edge of the sieve aperture sharp edges of the prior art without chamfering in running
In grain surface is caused to scratch destruction, the drawbacks of causing grain damaged, infringement grain quality, it is to avoid grain is in screening process
In breakage, realize lossless screening.
Be made up of as a result of the sieve the rectangular steel plates for being stamped with sieve aperture, the sieve aperture by tubaeform bending section and
The technical characteristic that the extension straight length of steel plain is constituted is protruded from, the processing of sieve aperture is on the one hand facilitated, a punching press can
To form sieve aperture, on the other hand, protruding from the extension straight length of steel plain can prevent that the air-flow blown out by cleaning blower fan is anti-
To by sieve aperture, the cleaning effect of light impurities is influenceed, and makes air flow method evenly, the cleaning effect of light impurities is more
It is good.
Brief description of the drawings
Lossless grain rotary screen of the present utility model is described in further detail below in conjunction with the accompanying drawings.
Fig. 1 is the structural representation of lossless grain rotary screen of the present utility model；
Fig. 2 is the longitudinal profile mplifying structure schematic diagram of sieve aperture in lossless grain rotary screen of the present utility model.
Embodiment
As shown in figure 1, lossless grain rotary screen of the present utility model, including frame 19, being provided with frame to rotate
Screen drum, the screen drum is the inclination screen drum that feed end is high, discharge end is low, and support tube circle 14 is provided with the feed end of screen drum,
At least provided with two support roller stations 15 being engaged with support tube circle in frame, support roller station is from support tube ring outer wall by screen drum support
Rise, and screen drum is rotated freely around axis, the screen drum support roller station is that axial inclination can revolve with screen drum support tube circle
The adaptive screen drum support roller station of axes of rotation skew angle change and adjust automatically, screen drum support roller station is arranged on adaptive wheel seat 16
On, adaptive wheel seat is provided with the pivot 17 perpendicular with screen drum supporting bracket wheel shaft, and adaptive wheel seat is by being pivotally secured within machine
On frame, in the course of work, adaptive wheel seat is around pivot fine rotation, you can make support roller station and the automatic keeping parallelism shape of screen drum axle
State.Screen drum axle 8 is provided with the discharge end of screen drum, provided with the screen drum bearing block 9 being engaged with screen drum axle in frame, in frame
The decelerator 5 of driving screen drum rotation is additionally provided with, screen drum axle is coupled with reducer output shaft by gear, and the decelerator is preferably
Worm gear, worm-drive supplementary reduction, screen drum axle pass through straight spur gear joint transmission with reducer output shaft.The screen drum is
The screen drum that angle of inclination can be adjusted, screen drum tilt adjustment swing seat 11, decelerator and screen drum bearing are provided with the discharge end of screen drum
Seat is fixed on screen drum tilt adjustment swing seat.The screen drum tilt adjustment swing seat includes pedestal, is provided with pedestal and is hinged axis hole, seat
Body is connected with frame by the jointed shaft 12 vertical with screen drum axle, and pedestal inclination angle stopping means is provided between pedestal and frame.Institute
It is the spacing regulation screw mandrel screw 10 being arranged between the pedestal of jointed shaft both sides and frame, regulation to state pedestal inclination angle stopping means
The number of screw mandrel screw can be adjusted according to actual needs.The screen drum is made up of coaxial interior screen drum 6 and outer screen drum 3,
The radial section of interior screen drum and outer screen drum is regular pentagon, and the interior screen drum and outer screen drum are by screen drum skeleton 4 and installed in sieve
Sieve 1 on cylinder skeleton is constituted.As shown in Fig. 2 the sieve is by punching press or drills the rectangular steel plates of sieve aperture 2 and constitutes, it is described
Sieve aperture 2 is tubaeform sieve aperture, and the sieve aperture edge on the inside of screen drum is provided with arc angling 20, described by the tubaeform bending section 21 of sieve aperture
Constituted with the extension straight length 22 for protruding from steel plain.The sieve diameter of interior screen drum is more than the sieve diameter of outer screen drum, interior sieve
The high-end composition charging aperture of cylinder, the low side of interior screen drum constitutes thick impurities outlet, and the low side of outer screen drum constitutes grain delivery outlet, outer sieve
The sieve aperture of cylinder barrel constitutes thin impurities outlet.Also set the light impurities between interior screen drum and outer screen drum in frame from feed end
The cleaning blower fan of screen drum is blown out, preferably, setting two axial fans in frame（7、13）, below frame be provided with it is thick
The corresponding discharge bucket 18 of impurities outlet, thin impurities outlet, grain delivery outlet.
Preferred embodiment of the present utility model described in detail above, still, the utility model is not limited to above-mentioned reality
The detail in mode is applied, in range of the technology design of the present utility model, the technical solution of the utility model can be entered
The a variety of simple variants of row, these simple variants belong to protection domain of the present utility model.
Claims (2)
1. a kind of lossless grain rotary screen, including frame, are provided with rotatable screen drum in frame, it is characterized in that：The sieve
Cylinder is the inclination screen drum that feed end is high, discharge end is low, is provided with support tube circle in the feed end of screen drum, is provided with and support in frame
The support roller station that cylinder circle is engaged, is provided with screen drum axle, provided with the sieve being engaged with screen drum axle in frame in the discharge end of screen drum
Cylinder bearing block, is additionally provided with the decelerator of driving screen drum rotation in frame, and screen drum axle is coupled with reducer output shaft by gear,
The screen drum is made up of coaxial interior screen drum and outer screen drum, and the radial section of interior screen drum and outer screen drum is regular pentagon, interior sieve
The sieve diameter of cylinder is more than the sieve diameter of outer screen drum, and the high-end composition charging aperture of interior screen drum, the low side composition of interior screen drum is thick miscellaneous
Matter is exported, and the low side of outer screen drum constitutes grain delivery outlet, and the sieve aperture of outer screen drum barrel constitutes thin impurities outlet, also set in frame
By the light impurities between interior screen drum and outer screen drum from feed end blow out screen drum cleaning blower fan, the interior screen drum and outer screen drum by
Screen drum skeleton and the sieve on screen drum skeleton are constituted, and the sieve is made up of the rectangular steel plates for being stamped with sieve aperture, described
Sieve aperture is tubaeform sieve aperture, and the sieve aperture edge on the inside of screen drum is provided with arc angling.
2. lossless grain rotary screen according to claim 1, it is characterized in that：The sieve is by being stamped with the rectangle steel of sieve aperture
Plate is constituted, and the sieve aperture is made up of tubaeform bending section with the extension straight length for protruding from steel plain.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007622.6U CN206435451U (en) | 2017-01-05 | 2017-01-05 | A kind of lossless grain rotary screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720007622.6U CN206435451U (en) | 2017-01-05 | 2017-01-05 | A kind of lossless grain rotary screen |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206435451U true CN206435451U (en) | 2017-08-25 |
Family
ID=59642636
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720007622.6U Expired - Fee Related CN206435451U (en) | 2017-01-05 | 2017-01-05 | A kind of lossless grain rotary screen |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206435451U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296159A (en) * | 2018-01-22 | 2018-07-20 | 内蒙古科技大学 | A kind of anti-blocking drum sieve |
-
2017
- 2017-01-05 CN CN201720007622.6U patent/CN206435451U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108296159A (en) * | 2018-01-22 | 2018-07-20 | 内蒙古科技大学 | A kind of anti-blocking drum sieve |
| CN108296159B (en) * | 2018-01-22 | 2020-05-19 | 内蒙古科技大学 | Anti-blocking drum screen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170825 Termination date: 20200105 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |