CN212944040U - Flat-turning classifying screen - Google Patents
Flat-turning classifying screen Download PDFInfo
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- CN212944040U CN212944040U CN202021775659.1U CN202021775659U CN212944040U CN 212944040 U CN212944040 U CN 212944040U CN 202021775659 U CN202021775659 U CN 202021775659U CN 212944040 U CN212944040 U CN 212944040U
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- thick bamboo
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Abstract
The utility model relates to a feed processing technology field discloses a flat rotating classifying screen, including a sieve section of thick bamboo and base, a sieve section of thick bamboo passes through elastic mechanism and connects on the base, be connected with semicircular eccentric weight on the sieve section of thick bamboo, the top center department of a sieve section of thick bamboo is equipped with feed hopper, be equipped with a plurality of sieve tray from last to being equipped with down in proper order in the sieve section of thick bamboo, all be equipped with hierarchical export on the sieve section of thick bamboo lateral wall of every sieve tray top, connect through the connecting axle between the adjacent sieve tray, the sieve tray that is located the below is connected with the drive shaft, the drive shaft stretches out the sieve section of thick bamboo and just is connected with flat rotating actuating mechanism outward, the sieve tray is including solid fixed ring, go up screen cloth and. The utility model discloses can carry out abundant complete screening to the material, prevent that the sieve mesh from blockking up, improve screening efficiency, the screening is thorough, and hierarchical screening is effectual.
Description
Technical Field
The utility model relates to a feed processing technology field especially relates to a flat rotating classifying screen.
Background
During the processing of the feed, the feed needs to be classified and sieved to separate feed particles with different particle sizes. Present hierarchical screening equipment is most for the flat-turning classifying screen, generally including a sieve section of thick bamboo, sieve section of thick bamboo upper end is equipped with feed hopper, be equipped with the pivot through motor drive in the sieve section of thick bamboo, be fixed with a plurality of sieve meshes degressive sifter in proper order from last in the pivot, in operation, the motor drive pivot is rotated, the pivot drives a plurality of sifters and rotates and carry out the classification and sieve to feed material, under the effect of centrifugal force, feed pellet on the sifter is from the center to motion all around and diffusion, wherein the sieve mesh whereabouts of less feed pellet through the sifter, and great feed pellet then can not discharge through the sieve mesh and finally follow the discharge gate on the sieve section of thick bamboo lateral wall, realize the separation. However, the conventional flat-turning classifying screen is very easy to cause the phenomenon that the hole plugging is blocked by materials in the working process, and the normal classifying and screening of the feed are influenced, so that the screening efficiency is low and the screening is not thorough. In addition, due to the fact that the screening time is too short after the materials fall into the screen surface, the materials are moved to the discharge port position and discharged out of the screen drum after being completely screened, and a good grading screening effect cannot be achieved.
SUMMERY OF THE UTILITY MODEL
To the technical problem that prior art exists, the utility model provides a flat rotary classifying screen.
In order to achieve the above object, the utility model provides a following technical scheme: a flat-turning classifying screen comprises a screen drum and a base, wherein the screen drum is connected to the base through an elastic mechanism, semicircular eccentric weights are symmetrically connected to the front side wall and the rear side wall of the screen drum, the eccentric weights are connected with a vibration driving mechanism, a feeding funnel is arranged at the center of the top of the screen drum, a plurality of screen discs are sequentially arranged in the screen drum from top to bottom, a classifying outlet is arranged on the side wall of the screen drum above each screen disc, adjacent screen discs are connected through a connecting shaft, the screen disc positioned at the lowest position is connected with a driving shaft, the driving shaft extends out of the screen drum and is connected with a flat-turning driving mechanism, each screen disc comprises a fixing ring, an upper screen mesh and a lower screen mesh, the fixing rings are rotatably connected to the side wall of the screen drum, the upper screen mesh and the lower screen mesh are respectively connected to the upper surface and the lower surface of the fixing rings, a plurality of elastic balls are arranged between the upper screen mesh and, the apertures of the screen cloth on each screen tray are sequentially reduced from top to bottom, and a discharge hole is formed in the bottom of the screen drum.
Preferably, elastic mechanism includes connecting sleeve, connecting rod and spring, the connecting sleeve is fixed in on the base, the connecting rod top is connected in a sieve section of thick bamboo bottom, the connecting rod bottom insert in the connecting sleeve and with connecting sleeve sliding fit, the spring housing is located outside connecting sleeve and the connecting rod and its both ends are connected in base, a sieve section of thick bamboo respectively.
Preferably, the vibration driving mechanism comprises a vibration motor, a driving wheel, a rotating shaft and a driven wheel, the vibration motor is fixed on the screen drum, the driving wheel is connected to an output shaft of the vibration motor, the rotating shaft is rotatably connected to the side wall of the screen drum, the driven wheel and the eccentric heavy hammer are fixed on the rotating shaft, and the driven wheel and the driving wheel are connected through a belt in a transmission manner.
Preferably, the flat-turning driving mechanism comprises a flat-turning motor, a first bevel gear and a second bevel gear, the flat-turning motor is fixed at the bottom of the screen drum, the first bevel gear is connected to an output shaft of the flat-turning motor, and the second bevel gear is meshed with the first bevel gear and connected to the driving shaft.
Preferably, a plurality of limiting rings capable of moving freely are arranged between the upper screen mesh and the lower screen mesh of the screen disc, and a plurality of elastic balls are dispersedly arranged in the limiting rings.
Preferably, a material gathering cone hopper is arranged below each screen disc, and a spiral material guide plate is arranged on the inner wall of the material gathering cone hopper.
Preferably, a plurality of circular baffles which are concentrically arranged are fixed on the upper screen, and a plurality of gaps for materials to pass through are arranged on each circular baffle.
The utility model discloses can accelerate the separation diffusion of material to the extension material is at the motion route of screen cloth, thereby carries out abundant complete screening to the material, prevents that the sieve mesh from blockking up, improves screening efficiency, and the screening is thorough, and hierarchical screening is effectual.
Drawings
Fig. 1 is a schematic structural diagram of the present embodiment.
Fig. 2 is an enlarged schematic view at a in fig. 1.
Figure 3 is a top view of the sieve tray of figure 1.
Fig. 4 is an axial cross-sectional view of the cone hopper of fig. 1.
In the figure: the automatic feeding device comprises a screen drum 1, a base 2, an eccentric weight 3, a feeding hopper 4, a screen disc 5, a grading outlet 6, a connecting shaft 7, a fixing ring 8, an upper screen 9, a lower screen 10, an elastic ball 11, a discharge hole 12, a connecting sleeve 13, a connecting rod 14, a spring 15, a vibrating motor 16, a driving wheel 17, a rotating shaft 18, a driven wheel 19, a flat-turning motor 20, a bevel gear II 21, a limiting ring 22, a material gathering cone hopper 23, a material guide plate 24, a circular baffle 25 and a gap 26.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Examples
Referring to fig. 1-4, a flat rotating classifying screen comprises a screen cylinder 1 and a base 2, the screen cylinder 1 is connected to the base 2 through an elastic mechanism, semicircular eccentric weights 3 are symmetrically connected to the front and rear side walls of the screen cylinder 1, the eccentric weights 3 are connected to a vibration driving mechanism, a feeding funnel 4 is arranged at the center of the top of the screen cylinder 1, three screen trays 5 are sequentially arranged in the screen cylinder 1 from top to bottom, a classifying outlet 6 is arranged on the side wall of the screen cylinder 1 above each screen tray 5, adjacent screen trays 5 are connected through a connecting shaft 7, the screen tray 5 positioned at the lowest position is connected with a driving shaft, the driving shaft extends out of the screen cylinder 1 and is connected with a flat rotating driving mechanism, each screen tray 5 comprises a fixing ring 8, an upper screen 9 and a lower screen 10, the fixing ring 8 is rotatably connected to the side wall of the screen cylinder 1, the upper screen 9 and the lower screen 10 are respectively connected to the upper and lower surfaces of the, a plurality of elastic balls 11 are arranged between the upper screen 9 and the lower screen 10, the screen hole diameters of the upper screen 9 and the lower screen 10 of the same screen tray 5 are consistent, the hole diameters of the upper screen 9 of each screen tray 5 are sequentially reduced from top to bottom, and a discharge hole 12 is formed in the bottom of the screen cylinder 1.
Elastic mechanism includes connecting sleeve 13, connecting rod 14 and spring 15, connecting sleeve 13 is fixed in on the base 2, connecting rod 14 top is connected in a sieve section of thick bamboo 1 bottom, and connecting rod 14 bottom is inserted in connecting sleeve 13 and with connecting sleeve 13 sliding fit, spring 15 cover is located connecting sleeve 13 and connecting rod 14 outer and its both ends are connected in base 2, a sieve section of thick bamboo 1 respectively.
The vibration driving mechanism comprises a vibration motor 16, a driving wheel 17, a rotating shaft 18 and a driven wheel 19, the vibration motor 16 is fixed on the screen drum 1, the driving wheel 17 is connected on an output shaft of the vibration motor 16, the rotating shaft 18 is rotatably connected on the side wall of the screen drum 1, the driven wheel 19 and the eccentric heavy hammer 3 are both fixed on the rotating shaft 18, and the driven wheel 19 and the driving wheel 17 are connected through a belt in a transmission manner.
The flat-turning driving mechanism comprises a flat-turning motor 20, a first bevel gear and a second bevel gear 21, the flat-turning motor 20 is fixed at the bottom of the screen drum 1, the first bevel gear is connected to an output shaft of the flat-turning motor 20, and the second bevel gear 21 is meshed with the first bevel gear and is connected to a driving shaft.
Eight limiting rings 22 capable of moving freely are arranged between the upper screen mesh 9 and the lower screen mesh 10 of the screen disc 5, and a plurality of elastic balls 11 are dispersedly arranged in the limiting rings 22.
A material gathering cone hopper 23 is arranged below each screen tray 5, and a spiral material guide plate 24 is arranged on the inner wall of the material gathering cone hopper 23.
Three concentrically arranged circular baffles 25 are fixed on the upper screen 9, and a plurality of gaps 26 for materials to pass through are arranged on each circular baffle 25.
The utility model discloses a theory of operation does: the feed material that treats the screening gets into in a sieve section of thick bamboo 1 from feed hopper 4 to fall into on the last screen cloth 9 of the screen tray 5 of the top, the flat motor 20 drives the drive shaft rotation, and drive each screen tray 5 and rotate and carry out hierarchical screening to the material, the material on the screen tray 5 is from the center to the motion all around and diffusion under the effect of centrifugal force, the sieve mesh whereabouts on the screen tray 5 is passed through to the tiny particle material, the large granule then can not pass through screen tray 5 and finally discharge from the hierarchical export 6 of this screen tray 5 top, discharge gate 12 is discharged from to the material through the screen tray 5 of the bottom. In the screening process, vibrating motor 16 drives eccentric weight 3 to rotate through the belt, and screen drum 1 vibrates from top to bottom under the combined action of eccentric weight 3 and elastic mechanism, can accelerate the dispersion of material on each screen tray 5, because the clearance between the material granule is enlarged with higher speed, and the granule material can in time pass the clearance between the material and fall through the sieve mesh, realizes the separation rapidly, has accelerated the screening of material, has improved screening speed.
In addition, in the vibration process of the screen cylinder 1, the elastic balls 11 between the upper screen 9 and the lower screen 10 continuously impact the upper screen 9 and the lower screen 10 due to inertia, and the arrangement can generate a vertical acting force on the materials on the upper screen 9 on one hand, accelerate the separation and diffusion of the materials on the upper screen 9, is beneficial to screening, and is helpful for the falling of the materials in the screen holes on the upper screen 9 and the lower screen 10 on the other hand, so that the screen blockage is prevented.
A plurality of limiting rings 22 are movably arranged between the upper screen 9 and the lower screen 10, an indefinite number of elastic balls 11 are arranged in each limiting ring 22, and when the screen cylinder 1 vibrates, the positions of the limiting rings 22 and the elastic balls 11 are constantly changed, so that the screen plate 5 can be rapped in an all-directional manner, and the normal passing of materials on the upper screen 9 and the lower screen 10 is not influenced. The limiting ring 22 can perform a forced limiting function on the elastic ball 11, so that damage caused by overlarge local stress on the screen disc 5 due to the gathering of the elastic ball 11 is avoided.
Gather material awl fill 23 setting can be with the material gathering that passes through screen tray 5 in the center department of a sieve section of thick bamboo 1, make it have abundant screening time and sufficiently long screening route when sieving through next screen tray 5, avoid the material not yet to have reached to sieve completely just by the emergence of the direct emergence of being discharged sieve section of thick bamboo 1 of the material of being discharged sieve section of thick bamboo 1 and being close to the export 6 position of grading. The material guide plate 24 can pre-disperse the materials on the material gathering cone hopper 23, prolong the retention time of the materials on the material gathering cone hopper 23, and avoid the influence on the screening caused by the fact that the materials are directly stacked on the lower screen tray 5 after being discharged from the material gathering cone hopper 23.
The circular baffle plates 25 are arranged on the upper screen 9, when screening is carried out, large-particle materials cannot pass through the screen holes, and finally the materials pass through the gaps 26 of the circular baffle plates 25 in a circuitous mode and diffuse around. The arrangement of the circular baffle 25 and the gap 26 can prolong the staying time and the moving path of the materials on the upper screen 9, thereby being beneficial to fully and completely screening the materials.
The foregoing description of the embodiments of the invention has been presented for purposes of illustration and not limitation, and is not intended to be exhaustive or limited to the embodiments disclosed. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the illustrated embodiments.
Claims (7)
1. The utility model provides a flat rotary classifying screen, includes a sieve section of thick bamboo and base, its characterized in that: the screen drum is connected to the base through an elastic mechanism, semicircular eccentric weights are symmetrically connected to the front side wall and the rear side wall of the screen drum, the eccentric weights are connected with a vibration driving mechanism, a feeding funnel is arranged at the center of the top of the screen drum, a plurality of screen trays are sequentially arranged in the screen drum from top to bottom, a grading outlet is formed in the side wall of the screen drum above each screen tray, adjacent screen trays are connected through a connecting shaft, the screen tray positioned at the lowest part is connected with a driving shaft, the driving shaft extends out of the screen drum and is connected with a flat rotating driving mechanism, the screen trays comprise a fixing ring, an upper screen and a lower screen, the fixing ring is rotatably connected to the side wall of the screen drum, the upper screen and the lower screen are respectively connected to the upper surface and the lower surface of the fixing ring, a plurality of elastic balls are arranged between the upper screen and the lower screen, and the mesh apertures, the apertures of the screen cloth on each screen tray are sequentially reduced from top to bottom, and a discharge hole is formed in the bottom of the screen drum.
2. A flat rotary sizing screen according to claim 1, wherein: elastic mechanism includes connecting sleeve, connecting rod and spring, the connecting sleeve is fixed in on the base, the connecting rod top is connected in a sieve section of thick bamboo bottom, and the connecting rod bottom inserts in the connecting sleeve and with connecting sleeve sliding fit, the spring housing is located outside connecting sleeve and the connecting rod and its both ends are connected with base, a sieve section of thick bamboo respectively.
3. A flat rotary sizing screen according to claim 1, wherein: the vibration driving mechanism comprises a vibration motor, a driving wheel, a rotating shaft and a driven wheel, the vibration motor is fixed on the screen drum, the driving wheel is connected on an output shaft of the vibration motor, the rotating shaft is rotatably connected on the side wall of the screen drum, the driven wheel and the eccentric heavy hammer are fixed on the rotating shaft, and the driven wheel and the driving wheel are connected through a belt in a transmission manner.
4. A flat rotary sizing screen according to claim 1, wherein: the horizontal rotation driving mechanism comprises a horizontal rotation motor, a first bevel gear and a second bevel gear, the horizontal rotation motor is fixed at the bottom of the screen drum, the first bevel gear is connected to an output shaft of the horizontal rotation motor, and the second bevel gear is meshed with the first bevel gear and connected to a driving shaft.
5. A flat rotary sizing screen according to claim 1, wherein: a plurality of limiting rings capable of moving freely are arranged between the upper screen mesh and the lower screen mesh of the screen disc, and a plurality of elastic balls are dispersedly arranged in the limiting rings.
6. A flat rotary sizing screen according to claim 1, wherein: a material gathering cone hopper is arranged below each screen disc, and a spiral material guide plate is arranged on the inner wall of the material gathering cone hopper.
7. A flat rotary sizing screen according to claim 1, wherein: a plurality of circular baffles which are concentrically arranged are fixed on the upper screen, and a plurality of gaps for materials to pass through are arranged on each circular baffle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775659.1U CN212944040U (en) | 2020-08-21 | 2020-08-21 | Flat-turning classifying screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021775659.1U CN212944040U (en) | 2020-08-21 | 2020-08-21 | Flat-turning classifying screen |
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| Publication Number | Publication Date |
|---|---|
| CN212944040U true CN212944040U (en) | 2021-04-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202021775659.1U Active CN212944040U (en) | 2020-08-21 | 2020-08-21 | Flat-turning classifying screen |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197106A (en) * | 2023-05-05 | 2023-06-02 | 哈尔滨理工大学 | Screening and extracting device for preparing infant heat-clearing granule raw materials |
| CN116689288A (en) * | 2023-08-04 | 2023-09-05 | 山东利尔新材股份有限公司 | Liquefaction screening plant of sodium aluminate material |
| CN118002485A (en) * | 2024-04-10 | 2024-05-10 | 杭州宏大建材有限公司 | Intelligent feeder with screening function |
-
2020
- 2020-08-21 CN CN202021775659.1U patent/CN212944040U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116197106A (en) * | 2023-05-05 | 2023-06-02 | 哈尔滨理工大学 | Screening and extracting device for preparing infant heat-clearing granule raw materials |
| CN116197106B (en) * | 2023-05-05 | 2023-07-18 | 哈尔滨理工大学 | Screening and extracting device for preparing infant heat-clearing granule raw materials |
| CN116689288A (en) * | 2023-08-04 | 2023-09-05 | 山东利尔新材股份有限公司 | Liquefaction screening plant of sodium aluminate material |
| CN116689288B (en) * | 2023-08-04 | 2023-09-29 | 山东利尔新材股份有限公司 | Liquefaction screening plant of sodium aluminate material |
| CN118002485A (en) * | 2024-04-10 | 2024-05-10 | 杭州宏大建材有限公司 | Intelligent feeder with screening function |
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