CN112237088A - Wind direction adjustable cleaning and anti-blocking device for combine harvester - Google Patents
Wind direction adjustable cleaning and anti-blocking device for combine harvester Download PDFInfo
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- CN112237088A CN112237088A CN202011001928.3A CN202011001928A CN112237088A CN 112237088 A CN112237088 A CN 112237088A CN 202011001928 A CN202011001928 A CN 202011001928A CN 112237088 A CN112237088 A CN 112237088A
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- cleaning
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01D—HARVESTING; MOWING
- A01D41/00—Combines, i.e. harvesters or mowers combined with threshing devices
- A01D41/12—Details of combines
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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
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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
- A01F12/446—Sieving means
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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
- A01F12/46—Mechanical grain conveyors
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention provides a cleaning and anti-blocking device of a combine harvester with adjustable wind direction, which comprises a high-speed ejector, a gas source device and a driving part, wherein the high-speed ejector is arranged above an outlet of a centrifugal fan through an ejector fixing frame, and the outlet of the high-speed ejector is aligned to a sieve; the high-speed ejector comprises a movable plate, a shell, air inlet ends and driving shafts, wherein the bottom of the shell is provided with a plurality of air inlet ends connected with an air source device, the two ends of the shell are provided with the driving shafts, and the driving shafts are arranged on a jet flow fixing frame through supporting seats; the rotary pair at the outlet of the upper part of the shell is connected with the movable plate, and the movable plate is manually or automatically rotated to adjust the size of the section of the outlet. The invention has good anti-blocking function to the material accumulation in the front end range of the screen surface; meanwhile, the size of the air outlet of the high-speed ejector can be manually or automatically adjusted, the area and the spraying range of the air outlet of the high-speed ejector are changed, and the blockage prevention of materials stacked on the screen surface can be realized in a wider range.
Description
Technical Field
The invention relates to the field of agricultural machinery, in particular to a cleaning and anti-blocking device of a combine harvester with adjustable wind direction.
Background
The large-scale combine harvester is one of the important agricultural machines for grain harvesting in China, the cleaning device is one of the main working components of the combine harvester, and the cleaning performance directly influences the working effect of the whole combine harvester, so that the improvement of the cleaning performance is a necessary condition for improving the working performance of the whole combine harvester, and is one of the key problems which must be solved in the development process of the grain combine harvester towards large-scale, fully-automatic harvesting operation, high efficiency, high intelligence, high quality and high comfort, and the problem that the production mode in China develops towards large-scale and large-scale at present is solved. At present, on large-scale self-propelled combine harvester cleaning devices at home and abroad, the air screen type cleaning device is widely applied, but the cleaning performance of the air screen type cleaning device is influenced by a plurality of factors, wherein the motion form and the control of a vibrating screen are important factors, and meanwhile, the structure and the shape of a screen surface influence the cleaning effect. In the process of cleaning materials, due to the influence of different feeding forms of the materials, the characteristic difference of the materials, the structural characteristics of the vibrating screen and the change of motion parameters, the materials are easy to accumulate together, and screen holes are blocked, so that the screen permeability of grains is influenced. Therefore, aiming at the problem of material accumulation and blockage of the air screen type cleaning device, a new means and a new method can be added in the aspect of material blockage prevention in the screening process of the vibrating screen, the material accumulation at the front end of the screen surface is prevented in a combined mode through multiple modes so as to improve the cleaning performance of the material, the high screening efficiency of the screening mechanism is guaranteed, and the normal operation of the follow-up work is guaranteed.
The chinese patent discloses a subassembly is cleaned to cereal of double fan, which comprises a housin, the main fan, lower auxiliary fan, clean the flitch, characterized by installs the row's of falling V font row's material air duct in the inside flitch upper right side of cleaning of casing, the main fan is installed in the below of cleaning the flitch, main fan air outlet is by main air outlet duct, the vice air outlet duct of Y shape, main air outlet duct is responsible for carrying out the selection by winnowing to cleaning the flitch, the vice air outlet duct of Y shape is one to main air outlet duct air current supply, another sieves light and impure in advance to cleaning flitch top material, lower auxiliary fan is located the row's of falling V shape air duct below, can guide air current diversion flow direction to fall V shape row's material air duct, the diversion of air current has been realized to the fan that utilizes two different structural designs. However, the auxiliary fan is required to be installed, the occupied space is large, meanwhile, the Y-shaped auxiliary air outlet channel of the main fan cannot change the wind direction, the cleaning effect above the cleaning plate is poor, and the whole cleaning area of the cleaning plate is not covered by the Y-shaped auxiliary air outlet channel below the cleaning plate.
Chinese patent discloses a multistage wind channel, cleaning plant is used to crops of wind pressure, including the fixed support body of efflux, first crossflow fan, second crossflow fan, the compensation fan, the control box, first crossflow fan is rotatory by first motor drive, first crossflow fan air outlet level, second crossflow fan settles in first crossflow fan's right side below, by second motor drive, second crossflow fan air outlet is 75 with the level, second crossflow fan impeller diameter is less than first crossflow fan, the compensation fan is installed in first crossflow fan upper left side, the air outlet is 45 with the level, by third motor drive, can utilize a plurality of fans cooperation compensation air current, reduce to clean the low pressure zone region, improve and clean efficiency. But its occupation space is great, and the air current that a plurality of fans produced can interfere with each other simultaneously, leads to the disorder of air current easily.
The Chinese patent discloses a high-efficiency cleaning airflow sieve of a peanut picker, which comprises a vibrating sieve with a high front and a low back, and two cross flow fans arranged obliquely above the vibrating sieve, wherein a punching sieve plate is arranged below the vibrating sieve, so that the peanut picker can realize one-time quick cleaning, does not need secondary recovery treatment, and improves the cleaning and separating efficiency. But the vibrating screen and the annular conveying belt are easy to block, so that the peanuts, the stalks and the impurities at the front end of the vibrating screen are blocked, and the subsequent conveying and cleaning work is influenced. Chinese patent discloses a shale shaker formula millet cleaning plant based on double fan air current that mixes, the shale shaker top is furnished with two threshing cylinder, installs a cross current fan above shale shaker oversize thing export one side top, and through the cooperation of the air current of blowing that cross current fan produced the air current of breathing in and centrifugal fan produced, with shale shaker top corn, miscellaneous selection by winnowing, has promoted cleaning efficiency. However, the double threshing drums are used, the amount of the discharged materials is large, and meanwhile, the front end of the screen surface of the vibrating screen is difficult to cover by airflow blown by a single centrifugal fan, so that the whole screen surface is winnowed, and the problem that the front end of the screen surface is easily blocked is solved.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides a cleaning and anti-blocking device of a combine harvester with adjustable wind direction, which has good anti-blocking effect on material accumulation in the range of the front end of a screen surface; meanwhile, the size of the air outlet of the high-speed ejector can be manually or automatically adjusted, the area and the spraying range of the air outlet of the high-speed ejector are changed, and the blockage prevention of materials stacked on the screen surface can be realized in a wider range.
The present invention achieves the above-described object by the following technical means.
A cleaning anti-blocking device of a combine harvester with adjustable wind direction comprises a high-speed ejector, a gas source device and a driving part, wherein the high-speed ejector is installed above an outlet of a centrifugal fan through an ejector fixing frame, and the outlet of the high-speed ejector is aligned to a sieve; the gas source device is used for providing high-pressure gas for the high-speed ejector; the driving component is used for driving the high-speed ejector to rotate.
Further, the high-speed ejector comprises a movable plate, a shell, air inlet ends and driving shafts, wherein the bottom of the shell is provided with a plurality of air inlet ends connected with an air source device, the two ends of the shell are provided with the driving shafts, the driving shafts are installed on the jet fixing frame through supporting seats, and the driving shafts are connected with driving parts through transmission mechanisms; the rotary pair at the outlet of the upper part of the shell is connected with the movable plate, and the movable plate is manually or automatically rotated to adjust the size of the section of the outlet.
Furthermore, a plurality of flow deflectors are arranged on the inner side of the movable plate, and the flow deflectors are streamline.
Further, the casing includes casing bottom, casing middle part and casing upper portion, casing bottom side is equipped with a plurality of inlet ends, is equipped with the casing middle part on the casing bottom of perpendicular inlet end, the casing middle part is gradually dwindled along the air current direction, casing upper portion curb plate is fan-shaped.
Further, a heating device is arranged in the middle of the shell and used for enabling the high-speed ejector to output hot air.
Furthermore, a detachable rectification baffle is arranged in the middle of the shell.
Further, the air source device comprises an electromagnetic control valve, an air pressure tank and a multi-path air pipe joint, the multi-path air pipe joint is connected with the inlet of the high-speed ejector, and the air pressure tank is connected with the multi-path air pipe joint through the electromagnetic control valve.
The invention has the beneficial effects that:
1. the cleaning and anti-blocking device of the combine harvester with adjustable wind direction can improve the jet speed and jet intensity of airflow by a plurality of times compared with the jet intensity of the airflow provided by the air outlet of a centrifugal fan, the high-speed jet device can rotate to change the jet direction of the airflow at the air outlet and block materials accumulated at different parts at the front end of a screen surface, and simultaneously when the high-speed jet device rotates to a limit angle, the jetted airflow and the airflow at the air outlet of the centrifugal fan are not interfered with each other and do not influence the normal work of the fan, a movable plate at the air outlet of the high-speed jet device can manually adjust a plurality of specific angles, the jet area and the range of the air outlet of the high-speed jet device are changed, the anti-blocking device can carry out on large-scale anti-blocking aiming at the condition that a large amount of threw-off products are accumulated and blocked on the screen, the heating wire is arranged in the high-speed ejector shell, when the moisture content of the material is higher, the high-speed hot air flow can be sprayed to prevent blockage, and the wet material is prevented from being stuck on the screen surface.
2. According to the cleaning and anti-blocking device of the combine harvester with the adjustable wind direction, the high-speed ejector is arranged between the vibrating screen and the upper plate of the fan through the jet fixing frame, and the occupied space is small.
3. The cleaning and anti-blocking device of the combine harvester with the adjustable wind direction has the advantages that the air pressure tank is small in size, convenient to store and supplement gas, capable of being used for multiple times through once inflation, fast and convenient.
Drawings
FIG. 1 is an axial view of a cleaning and anti-blocking device of the combine harvester with adjustable wind direction.
Fig. 2 is a front view of fig. 1.
Fig. 3 is a rotational view of the high-speed ejector according to the present invention.
Fig. 4 is a partial axial view of a high-speed ejector according to the present invention.
Fig. 5 is a cross-sectional view of a high-speed ejector according to the present invention.
Fig. 6 is an enlarged partial cross-sectional view of the movable plate of the present invention.
In the figure:
1-an electromagnetic control valve; 2-quick connector of air pipe; 3-high pressure air pipe; 4-a multi-way air pipe joint; 5-a high-speed ejector; 6-a support seat; 7-a centrifugal fan; 8-jet fixing frame; 9-gear; 10-a motor; 11-an air pressure tank; 5-1-a movable plate; 5-2-shell; 5-3-an air inlet end; 5-4-a rectifying baffle; 5-5-driving shaft.
Detailed Description
The invention will be further described with reference to the following figures and specific examples, but the scope of the invention is not limited thereto.
As shown in figure 1, the cleaning anti-blocking device of the combine harvester with adjustable wind direction comprises a high-speed ejector 5, a gas source device and a driving part, wherein the high-speed ejector 5 is installed above an outlet of a centrifugal fan 7 through a jet fixing frame 8, and the outlet of the high-speed ejector 5 is aligned to a sieve; the gas source device is used for providing high-pressure gas for the high-speed ejector 5; the driving component is used for driving the high-speed ejector 5 to rotate. The air supply device comprises an electromagnetic control valve 1, an air pipe quick connector 2, an air pressure tank 11 and a multi-path air pipe connector 4, wherein the multi-path air pipe connector 4 is connected with the air pipe quick connector 2 of the inlet of the high-speed ejector 5 through a high-pressure air pipe 3, and the air pressure tank 11 is connected with the multi-path air pipe connector 4 through the electromagnetic control valve 1.
As shown in fig. 1 and 4, the high-speed ejector 5 comprises a movable plate 5-1, a shell 5-2, an air inlet 5-3 and a driving shaft 5-5, wherein the bottom of the shell 5-2 is provided with a plurality of air inlet 5-3 connected with an air source device, the two ends of the shell 5-2 are provided with the driving shaft 5-5, the driving shaft 5-5 is mounted on a jet fixing frame 8 through a supporting seat 6, and the driving shaft 5-5 is connected with a motor 10 through a transmission mechanism; the transmission mechanism can be a pair of meshed gears 9, and can also be a gear train or a belt drive or a chain drive. As shown in fig. 2, the support legs of the jet fixing frame 8 are fixed on the machine body, the jet fixing frame 8 is fixed at the left end of the air outlet of the centrifugal fan 7, and the air pressure tank 11 can be laid obliquely below the air outlet of the centrifugal fan 7. The rotary pair at the outlet at the upper part of the shell 5-2 is connected with the movable plate 5-1, and the size of the section of the outlet is adjusted by manually or automatically rotating the movable plate 5-1. As shown in fig. 3, when the rotation direction of the high-speed ejector 5 is rotated to the extreme rotation position, the air flow ejected from the air outlet of the high-speed ejector 5 does not interfere with the air flow ejected from the air outlet of the centrifugal fan 7, the normal operation of the centrifugal fan 7 is not affected, and the problem of screen surface accumulation and blockage can be solved.
As shown in fig. 4 and 5, the housing 5-2 includes a housing bottom, a housing middle portion and a housing upper portion, the side of the housing bottom is provided with a plurality of air inlets 5-3, the housing bottom perpendicular to the air inlets 5-3 is provided with the housing middle portion, the housing middle portion is gradually tapered along the airflow direction, the movable plate 5-1 is installed on the housing upper portion, the housing upper portion side plate is fan-shaped, so that a good wind shielding effect can be maintained after the movable plate 5-1 rotates by a certain angle, and the cross-sectional area of the housing middle inner cavity is continuously reduced, so that the speed and pressure of the airflow can be increased. The bottom of the shell is square, the wall surface of the bottom of the shell is provided with a plurality of air inlet ends 5-3, a large amount of compressed air can be rapidly input, the convection effect of air flow in the shell 5-2 can be reduced, and the rectifying baffle 5-4 can be inserted between the inner cavities of the middle part and the lower part of the shell 5-2 and can be detached and replaced. The driving shaft 5-5 is connected with the gear 9 through a key, and the gear is driven by a motor to drive the high-speed ejector 5 to rotate. As shown in fig. 5, in the rotating direction and the extreme rotating position of the movable plate 5-1, a plurality of streamline guide plates are welded on the movable plate 5-1, after the movable plate 5-1 rotates, the guide effect on the airflow is enhanced, an inner cavity formed in the middle of the shell 5-2 provides a closed space for the stabilization and pressurization of the airflow, and the continuously reduced cross-sectional area can form higher-pressure and higher-speed jet airflow. The heating wire is installed in the inner cavity of the bottom of the shell, when wet materials are accumulated at the front end of the screen surface, hot air flows with different temperatures can be sprayed to prevent blocking, the rectifying baffle plates 5-4 are provided with a plurality of rectangular openings, the convection effect of compressed air formed in the inner cavity of the shell can be reduced, and the rectifying baffle plates 5-4 can be disassembled and replaced.
As shown in fig. 6, a through hole and a plurality of key grooves with different angles are formed in the rotating part of the movable plate 5-1, the rotating angle of the movable plate 5-1 is manually adjusted by using a pin shaft and a key, a square groove is formed in the contact part of the shell 5-2 and the movable plate 5-1 and used for placing the movable plate 5-1, and a sealing gasket is used for adhering the movable plate 5-1 and the shell 5-2 to prevent air leakage. The movable plate 5-1 can also be controlled to rotate by a stepping motor.
The present invention is not limited to the above-described embodiments, and any obvious improvements, substitutions or modifications can be made by those skilled in the art without departing from the spirit of the present invention.
Claims (7)
1. A cleaning and anti-blocking device of a combine harvester with adjustable wind direction is characterized by comprising a high-speed ejector (5), a gas source device and a driving part, wherein the high-speed ejector (5) is arranged above an outlet of a centrifugal fan (7) through a jet fixing frame (8), and the outlet of the high-speed ejector (5) is aligned to a sieve; the gas source device is used for providing high-pressure gas for the high-speed ejector (5); the driving component is used for driving the high-speed ejector (5) to rotate.
2. A cleaning and anti-blocking device for a combine harvester capable of adjusting the wind direction according to claim 1, characterized in that the high-speed jet device (5) comprises a movable plate (5-1), a shell (5-2), a gas inlet end (5-3) and a driving shaft (5-5), the bottom of the shell (5-2) is provided with a plurality of gas inlet ends (5-3) connected with a gas source device, the two ends of the shell (5-2) are provided with the driving shaft (5-5), the driving shaft (5-5) is installed on a jet fixing frame (8) through a supporting seat (6), and the driving shaft (5-5) is connected with a driving part through a transmission mechanism; the rotary pair at the outlet of the upper part of the shell (5-2) is connected with the movable plate (5-1), and the movable plate (5-1) is manually or automatically rotated to adjust the size of the section of the outlet.
3. A cleaning and anti-blocking device for a combine harvester capable of adjusting the wind direction as claimed in claim 1, characterized in that a plurality of flow deflectors are arranged on the inner side of the movable plate (5-1), and the flow deflectors are streamline.
4. A cleaning and anti-blocking device for a combine harvester according to claim 1, characterized in that the casing (5-2) comprises a casing bottom, a casing middle part and a casing upper part, the side of the casing bottom is provided with a plurality of air inlet ends (5-3), the casing bottom of the vertical air inlet ends (5-3) is provided with the casing middle part, the casing middle part is gradually reduced along the air flow direction, and the casing upper part side plate is fan-shaped.
5. A cleaning and anti-blocking device for a combine harvester capable of adjusting the wind direction as claimed in claim 4, characterized in that a heating device is installed in the middle of the casing for making the high-speed jet device (5) output hot wind.
6. A cleaning and anti-blocking device for a combine harvester capable of adjusting the wind direction as claimed in claim 4, characterized in that a detachable rectifying baffle (5-4) is installed in the middle of the casing.
7. A cleaning and anti-blocking device for a combine harvester with adjustable wind direction according to any one of the claims 1 to 6, characterized in that the air source device comprises an electromagnetic control valve (1), an air pressure tank (11) and a multi-path air pipe joint (4), the multi-path air pipe joint (4) is connected with an inlet of the high-speed ejector (5), and the air pressure tank (11) is connected with the multi-path air pipe joint (4) through the electromagnetic control valve (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001928.3A CN112237088B (en) | 2020-09-22 | 2020-09-22 | Wind direction adjustable cleaning and anti-blocking device for combine harvester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011001928.3A CN112237088B (en) | 2020-09-22 | 2020-09-22 | Wind direction adjustable cleaning and anti-blocking device for combine harvester |
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| Publication Number | Publication Date |
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| CN112237088A true CN112237088A (en) | 2021-01-19 |
| CN112237088B CN112237088B (en) | 2021-10-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011001928.3A Active CN112237088B (en) | 2020-09-22 | 2020-09-22 | Wind direction adjustable cleaning and anti-blocking device for combine harvester |
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| CN (1) | CN112237088B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113348861A (en) * | 2021-05-30 | 2021-09-07 | 江苏海瑞通机械有限公司 | Multipurpose wheat and soybean harvester |
| CN116235708A (en) * | 2023-04-25 | 2023-06-09 | 佳木斯惠尔橡塑股份有限公司 | Threshing device for harvester |
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| CN107838000A (en) * | 2016-09-21 | 2018-03-27 | 陈健康 | One kind is without blocking rotary screen |
| CN210701057U (en) * | 2019-08-21 | 2020-06-09 | 山西煤炭运销集团阳城西河煤业有限公司 | Anti-blocking type vibrating screen for coal processing |
| CN210995146U (en) * | 2019-10-23 | 2020-07-14 | 河南省金特振动机械有限公司 | Anti-blocking coal slurry drum screen |
| CN111543172A (en) * | 2020-06-03 | 2020-08-18 | 刘叶青 | Cleaning device of single-longitudinal axial flow combine harvester |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2032509U (en) * | 1988-05-21 | 1989-02-15 | 湖州联合收割机厂 | Cleaning device for drum screening machine |
| CN201894985U (en) * | 2010-12-06 | 2011-07-13 | 中冶宝钢技术服务有限公司 | Rotary screen with automatic net clearing function |
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| CN203002637U (en) * | 2012-11-30 | 2013-06-19 | 天津百利阳光环保设备有限公司 | Anti-clogging device of trommel screen |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113348861A (en) * | 2021-05-30 | 2021-09-07 | 江苏海瑞通机械有限公司 | Multipurpose wheat and soybean harvester |
| CN116235708A (en) * | 2023-04-25 | 2023-06-09 | 佳木斯惠尔橡塑股份有限公司 | Threshing device for harvester |
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| Publication number | Publication date |
|---|---|
| CN112237088B (en) | 2021-10-12 |
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