CN112042399A - Cylinder sieve cleaning system of cereal - Google Patents
Cylinder sieve cleaning system of cereal Download PDFInfo
- Publication number
- CN112042399A CN112042399A CN201910484333.9A CN201910484333A CN112042399A CN 112042399 A CN112042399 A CN 112042399A CN 201910484333 A CN201910484333 A CN 201910484333A CN 112042399 A CN112042399 A CN 112042399A
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- Prior art keywords
- cylindrical screen
- sieve
- cylindrical
- screen
- materials
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- 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
Abstract
The invention discloses a cylinder screen cleaning system for grains. The cleaning system consists of a cylindrical screen, an outer cover, a spiral guide plate, a rotary fixed shaft, a fan, a discharge hopper, a rack and the like. The shape and the size of the sieve pores of the cylindrical sieve are determined according to the appearance size of the grain seeds, and the sieve pores are spirally distributed along the movement track of the material; the inner wall surface of the cylindrical sieve is a convex hull type non-smooth bionic surface, and a spiral guide plate is arranged in the cylindrical sieve; the fan is arranged on the side surface of the discharge hopper. The feeding hopper is radially and obliquely arranged, so that materials are thrown into the cylindrical screen in a reverse direction at a certain speed, and the movement time of the materials in the cylindrical screen is prolonged; the rotary fixed shaft is arranged outside the cylindrical sieve, so that the separation space is effectively enlarged, and the dispersion of materials in the cylindrical sieve is better; the spiral guide plate effectively prolongs the contact time of the materials and the cylindrical screen and increases the conveying capacity of the materials; the bionic surface prevents materials from being attached to the inner wall of the screen drum, and reduces the breakage of grains.
Description
Technical Field
The invention relates to a cleaning device of a grain harvester, in particular to a cylindrical screen cleaning system for grain harvesting, and belongs to the field of agricultural machinery.
Background
The cleaning plant is an important component of the combine harvester, and the performance of the cleaning plant has a decisive influence on the operation effect of the combine harvester. Hilly and mountain areas account for about 70% of the territorial area of China, and are important food production bases in China. However, the land topography of hilly and mountainous areas has the characteristics of small and irregular land parcels, large height difference between the field parcels and the like, and the 'fan-vibrating screen' type cleaning device of the conventional grain combine harvester is not suitable for mechanized harvesting operation of the hilly and mountainous areas due to large volume, complex structure, easy influence of the terrain on the operation effect and the like. Compared with a fan-vibrating screen, the fan-cylindrical screen cleaning device has the advantages of simple structure, small size, good screening performance, reliable work, small vibration, low noise, difficult influence of terrain on the operation effect and the like, and is suitable for cleaning operation of the combined harvester in hilly and mountainous areas. However, for the materials with high moisture content and impurity content, the fan-cylinder screen cleaning device is easy to be blocked, the operation effect is not good, and the further wide application of the fan-cylinder screen cleaning device is hindered.
Disclosure of Invention
The invention aims to provide a fan-cylinder screen grain cleaning device. The device adopts cross flow fan and places in hopper one side of going out under the sieve, and the axis of rotation of cylinder sieve is placed in the barrel outside, and the sieve inner wall adopts bionic surface and increases spiral guide plate simultaneously, makes it have the structure simplification, cleans the space and increases, and wind field utilization efficiency is with clean efficient, has effectively prevented to block up, characteristics such as the operation is effectual.
In order to achieve the purpose, the invention adopts the following technical scheme: a fan-cylinder cleaning sieve is obliquely arranged on a frame, a feeding port of the cylinder sieve is high, a trash discharging port of the cylinder sieve is low, and a feeding hopper is connected with a material feeding device; the cylinder body can rotate along the central axis, the rotating shaft of the traditional cylinder screen is moved to the outside from the inside of the cylinder body, the inner wall surface of the cylinder screen adopts a bionic design and is additionally provided with a guide plate, and the air duct of a longitudinal flow fan of the traditional cylinder screen is designed into a transverse flow fan and is arranged on one side of a discharge hopper below the cylinder screen.
The inner wall of the cylindrical screen is a convex hull type non-smooth bionic surface, so that materials are not easy to adhere to the surface of the inner wall of the cylindrical screen, and cleaning loss caused by accumulation of light impurities on the inner wall of the cylindrical screen is effectively prevented.
The drum screen feeding hopper is positioned on one side of the central axis of the feeding drum screen and is radially and obliquely arranged, and the oblique direction is opposite to the rotating direction of the drum screen. The inclined feeding device enables the materials to be thrown into the cylindrical sieve in the opposite direction by rotating at a certain speed, increases the movement time of the cleaned materials in the cylindrical sieve and effectively improves the cleaning effect.
The inner wall of the cylindrical screen is provided with a spiral guide plate, and the pitch of the spiral guide plate is 300-500 mm.
The fan is arranged on one side of the discharge hopper below the cylinder body of the cylindrical screen, so that the structure is simplified, the utilization efficiency of a wind field is increased, and the separation and cleaning effects are improved.
Adopt the cylinder screen cleaning system of above-mentioned structure, its axis of rotation sets up outside the cylinder screen, has increased the space of cleaning, has further improved cleaning efficiency.
Drawings
FIG. 1 is a front view of a cylindrical screen cleaning system for grain in accordance with the present invention.
Fig. 2 is a left side view of a cylindrical screen cleaning system for grain in accordance with the present invention.
FIG. 3 is a schematic view showing the structure of a cylindrical screen in the cleaning system of the cylindrical screen for grains according to the present invention.
FIG. 4 is a schematic view of the structure of a right support in the cylinder screen cleaning system for grains according to the invention.
Detailed Description
As shown in fig. 1 and 2, the invention relates to a cylinder screen cleaning system for grains, which comprises: the device comprises a feed hopper 1, a right support 2, an outer cover upper 3, a cylindrical sieve 4, a spiral guide plate 5, a rotary fixed shaft 6, a left support 7, a rack 8, a fan transmission shaft 9, a large impurity discharge port 10, a fan support 11, a fan 12, a seed discharge port 13, a light impurity discharge port 14, an outer cover lower 15 and a discharge hopper 16. The drum sieve 4 is arranged on the outer cover 3 and under the outer cover 15, a rotary fixing shaft 6 is arranged outside the drum sieve, guide vanes 5 are arranged inside the drum sieve, the drum sieve is fixed on the frame 8 through a left support 7 and a right support 2, the rotary fixing shaft 6 is driven by a driving device and drives the drum sieve 4 to rotate, the right end of the drum sieve 4 is connected with the feeding hopper 1, and a discharging hopper 16 is arranged below the drum sieve. The fan 12 is fixedly installed on one side of the discharge hopper 16 through a fan bracket 11 arranged on the frame 8, and the fan transmission shaft 9 is driven by an external driving device and drives the fan 12 to work.
The working process of the invention is as follows:
when the cylindrical screen cleaning system for grains works, materials are added into a cylindrical screen 4 from a feed hopper 1 for screening, the materials flow forwards along a spiral guide plate 5, large impurities are discharged from a large impurity discharge hole 10, the other part of grains containing light impurities fall to a discharge hopper 16 from the cylindrical screen 4, the light impurities are blown out by wind power generated by a fan 12 and are discharged from a light impurity discharge hole 14, and the rest clean grains are discharged from a grain discharge hole 13. The spiral deflector 5 prevents the material from piling up and increases the contact time of the material with the cylindrical screen 4. The inner wall surface of the cylindrical sieve 4 is a convex hull type non-smooth bionic surface, so that materials are prevented from being attached to the inner wall to block sieve pores. The upper cover 3 and the lower cover 15 can prevent the splashing of the seeds in the screening process, reduce the loss of the seeds, reduce the noise and ensure the clean environment.
The above examples are merely illustrative of the embodiments of the present invention and do not limit the spirit and scope of the present invention. Any technical changes and modifications of the technical scheme of the invention shall fall into the protection scope of the invention without departing from the design idea of the invention. The technical contents of the claims of the invention are all recorded in the right specification.
Claims (7)
1. The utility model provides a system is cleaned to drum sieve of cereal, includes the both ends open-ended cylinder sieve that extends along the axis, the slope of drum sieve place, barrel upper end opening is equipped with into hopper (1), it links to each other its characterized in that with material conveyor to go into the hopper: the feeding hopper is positioned on one side of the central axis of the cylindrical screen and is radially and obliquely arranged.
2. The cylindrical screen (4) according to claim 1, characterized in that: the screen holes of the cylindrical screen are spirally distributed along the movement track of the material.
3. Cylindrical screen (4) according to claim 2, characterized in that: the inner wall surface of the cylindrical screen is a convex hull type non-smooth bionic surface.
4. A cylindrical screen (4) according to claim 3, characterized in that: the inner wall of the cylindrical screen is provided with a spiral guide plate (5).
5. Cylindrical screen (4) according to claim 4, characterized in that: the outer wall circle of the cylindrical screen is provided with a support rod, and the support rod is connected with a rotary fixed shaft (6).
6. A rotating stationary shaft (6) according to claim 5, characterized in that: the rotating fixed shaft (6) is arranged on the frame (8) through a left support and a right support.
7. The crossflow blower (12) of claim wherein: the fan air outlet duct is arranged at one side of the under-sieve frame and is close to the discharge hopper (16), and the air outlet duct of the fan is vertical to the ground.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484333.9A CN112042399A (en) | 2019-06-05 | 2019-06-05 | Cylinder sieve cleaning system of cereal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910484333.9A CN112042399A (en) | 2019-06-05 | 2019-06-05 | Cylinder sieve cleaning system of cereal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112042399A true CN112042399A (en) | 2020-12-08 |
Family
ID=73608483
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910484333.9A Pending CN112042399A (en) | 2019-06-05 | 2019-06-05 | Cylinder sieve cleaning system of cereal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112042399A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260289A (en) * | 2021-12-01 | 2022-04-01 | 苏州韩博环境科技有限公司 | Biomass crushing dehydration three-phase filtering separation equipment |
| CN115921072A (en) * | 2023-03-09 | 2023-04-07 | 山东风光市政园林工程有限公司 | Garrulous system is selected separately to afforestation discarded object |
Citations (9)
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| CN2696727Y (en) * | 2004-04-30 | 2005-05-04 | 吴江市胜天包装输送机械有限责任公司 | Double-layer drum screen with wind selecting blighted grain and dust removing device |
| CN101618381A (en) * | 2009-07-20 | 2010-01-06 | 江苏大学 | Bionic non-smooth sorting screen surface |
| CN201470590U (en) * | 2009-07-17 | 2010-05-19 | 安徽聚力机械制造有限公司 | Efficient cylinder screen |
| CN101733249A (en) * | 2009-12-09 | 2010-06-16 | 湖南大学 | Spiral belt piece type multi-gas field drum screen grain cleaning machine |
| US20140216991A1 (en) * | 2010-01-22 | 2014-08-07 | Vladimir Stepanovich Suhin | Method for separating a free-flowing mixture in a flowing medium and apparatus for carrying out said method |
| CN206689008U (en) * | 2017-03-14 | 2017-12-01 | 武汉市天牧机械设备制造有限公司 | Cereal receiving sieve |
| CN108391521A (en) * | 2018-05-15 | 2018-08-14 | 李志平 | A kind of grain cleaning machine |
| CN109201447A (en) * | 2018-08-28 | 2019-01-15 | 绩溪袁稻农业产业科技有限公司 | A kind of anti-clogging paddy screening installation |
| CN109304260A (en) * | 2018-11-04 | 2019-02-05 | 西北农林科技大学 | A kind of cyclone separating tube of grain cleaning |
-
2019
- 2019-06-05 CN CN201910484333.9A patent/CN112042399A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2696727Y (en) * | 2004-04-30 | 2005-05-04 | 吴江市胜天包装输送机械有限责任公司 | Double-layer drum screen with wind selecting blighted grain and dust removing device |
| CN201470590U (en) * | 2009-07-17 | 2010-05-19 | 安徽聚力机械制造有限公司 | Efficient cylinder screen |
| CN101618381A (en) * | 2009-07-20 | 2010-01-06 | 江苏大学 | Bionic non-smooth sorting screen surface |
| CN101733249A (en) * | 2009-12-09 | 2010-06-16 | 湖南大学 | Spiral belt piece type multi-gas field drum screen grain cleaning machine |
| US20140216991A1 (en) * | 2010-01-22 | 2014-08-07 | Vladimir Stepanovich Suhin | Method for separating a free-flowing mixture in a flowing medium and apparatus for carrying out said method |
| CN206689008U (en) * | 2017-03-14 | 2017-12-01 | 武汉市天牧机械设备制造有限公司 | Cereal receiving sieve |
| CN108391521A (en) * | 2018-05-15 | 2018-08-14 | 李志平 | A kind of grain cleaning machine |
| CN109201447A (en) * | 2018-08-28 | 2019-01-15 | 绩溪袁稻农业产业科技有限公司 | A kind of anti-clogging paddy screening installation |
| CN109304260A (en) * | 2018-11-04 | 2019-02-05 | 西北农林科技大学 | A kind of cyclone separating tube of grain cleaning |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114260289A (en) * | 2021-12-01 | 2022-04-01 | 苏州韩博环境科技有限公司 | Biomass crushing dehydration three-phase filtering separation equipment |
| CN115921072A (en) * | 2023-03-09 | 2023-04-07 | 山东风光市政园林工程有限公司 | Garrulous system is selected separately to afforestation discarded object |
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Application publication date: 20201208 |
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