CN111108919A - Combined corn thresher - Google Patents
Combined corn thresher Download PDFInfo
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- CN111108919A CN111108919A CN202010095641.5A CN202010095641A CN111108919A CN 111108919 A CN111108919 A CN 111108919A CN 202010095641 A CN202010095641 A CN 202010095641A CN 111108919 A CN111108919 A CN 111108919A
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- Prior art keywords
- threshing
- cylinder
- corn
- threshing cylinder
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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
- A01F11/00—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals
- A01F11/06—Threshing apparatus specially adapted for maize; Threshing apparatus specially adapted for particular crops other than cereals for maize, e.g. removing kernels from cobs
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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
- A01F12/18—Threshing devices
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- Life Sciences & Earth Sciences (AREA)
- Environmental Sciences (AREA)
- Threshing Machine Elements (AREA)
Abstract
The invention discloses a combined corn thresher, which comprises a rack, a grid intaglio, a top cover and a threshing cylinder, wherein the threshing cylinder is arranged at the upper part of the rack; the threshing cylinder is provided with a diameter-variable part. The invention can promote the corn ears threshed to smoothly move to the tail end of the roller, thereby effectively avoiding the problem of blockage.
Description
Technical Field
The invention relates to the technical field of agricultural machinery, in particular to a corn threshing device.
Background
Corn is one of the main food crops in China, the corn has a wide planting area in China, and in recent years, the yield of the corn in China is continuously increased. However, due to the characteristics of corn ears, the breakage rate of direct harvesting and threshing in the field of the current corn harvester cannot meet the ideal requirements of farmers, which is also the reason that the planting amount of the corn of a single farmer in a planting area mainly comprising rice in the south is small, and the like, mechanical or manual ear picking is mostly adopted during the corn harvesting, and manual threshing is adopted after airing. The manual threshing has low efficiency and high labor intensity, so the corn thresher becomes the first choice for farmers. Most of the existing corn threshing machines are easy to have the problems of congestion, unsatisfactory threshing rate and more impurities in the corn kernels caused by serious breakage of the corn cobs during threshing, so that the problems are not favorable for subsequent selection.
Aiming at the problems, the invention provides a combined corn thresher.
Disclosure of Invention
In order to realize the purpose of the invention, the following technical scheme is adopted for realizing the purpose:
a combined corn thresher comprises a frame, a grid intaglio, a top cover and a threshing cylinder, wherein: the threshing cylinder is arranged on the upper part of the frame, the grid intaglio is arranged on the frame and is arranged on the lower part of the threshing cylinder, and the top cover is arranged on the frame and is arranged on the upper part of the threshing cylinder; the threshing cylinder is provided with a diameter-variable part.
The combined corn thresher comprises: the threshing cylinder comprises a spiral propeller, a reducing threshing cylinder and an impurity removing cylinder, wherein the spiral propeller, the reducing threshing cylinder and the impurity removing cylinder are coaxially arranged and are sequentially connected, the reducing threshing cylinder is arranged between the spiral propeller and the impurity removing cylinder, the large end of the spiral propeller is connected with the small end of the reducing threshing cylinder, and the large end of the reducing threshing cylinder is connected with the impurity removing cylinder.
The combined corn thresher comprises: the spiral propeller body is in a cone cylinder shape, and spiral blades are arranged on the surface of the spiral propeller body.
The combined corn thresher comprises: the variable diameter threshing cylinder body is in a conical cylinder shape, a plurality of first threshing elements which are arranged into a spiral grain shape are uniformly distributed on the surface of the variable diameter threshing cylinder body, a plurality of rows of second threshing elements are further arranged on the surface of the variable diameter threshing cylinder body, and each row of second threshing elements are arranged between two adjacent spiral lines formed by the first threshing elements.
The combined corn thresher comprises: the trash discharging cylinder is characterized in that a plurality of partition plates are arranged on the surface of the trash discharging cylinder in the direction parallel to the axis.
The combined corn thresher comprises: the grid intaglio includes a semi-conical grid intaglio and a semi-cylindrical grid intaglio.
The combined corn thresher comprises: the caps include semi-conical caps and semi-cylindrical caps.
The combined corn thresher comprises: the shape of the spiral is represented by the following formula:
wherein L is the length of the first threshing element, H is the length of the reducing threshing cylinder, S is the screw pitch, D1Is the large end diameter of the diameter-variable threshing cylinder D2Is the diameter of the small end of the diameter-variable threshing cylinder.
The combined corn thresher comprises: each threshing element is of an approximately triangular dentate structure, the included angle between the two tooth-shaped side surfaces and the horizontal plane is 60 degrees, a fillet with the diameter of 2mm is arranged at the tooth top part, and a fillet with the diameter of 2mm is arranged at the tooth root part.
The combined corn thresher further comprises a collecting hopper, the collecting hopper comprises a first side baffle, a second side baffle and a baffle, the first side baffle, the second side baffle and the baffle are connected, two sides of the baffle are respectively connected with the first side baffle and the second side baffle, the collecting hopper is arranged at the lower part of the grid intaglio, the whole collecting hopper is in a funnel shape, an included angle between the first side baffle and the second side baffle of the collecting hopper is 90 degrees, and an included angle between the baffle and the horizontal plane is 30 degrees
Drawings
FIG. 1 is a schematic structural view of a combined corn thresher according to the present invention;
FIG. 2 is a schematic view of the structure of a threshing cylinder;
FIG. 3 is a schematic view of the surface structure of the threshing element;
FIG. 4 is a schematic diagram of a grid recess plate structure;
fig. 5 is a schematic view of the structure of the collecting hopper.
Wherein the reference numerals are:
1. frame 2, lead a board
3. Core arranging hopper 4 and grid gravure
5. Bearing 6, cylindrical top cover
7. Conical top cover 8 and feeding hopper
9. Bearing seat 10 and large belt wheel
11. Threshing cylinder 12, collecting hopper
13. V-shaped belt 14 and motor
15. Transmission shaft 16 and impurity removing barrel
17. Division plate 18 and diameter-variable threshing cylinder
19. A first threshing element 20 and a second threshing element
21. Screw propeller 22, helical blade
23. Cylindrical grid intaglio 24 and conical grid intaglio
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings.
As shown in figure 1, the combined corn thresher comprises a frame 1, a motor 14, a core arranging hopper 3, a grid intaglio 4, a cylindrical top cover 6, a conical top cover 7, a threshing cylinder 11, a feeding hopper 8, a collecting hopper 12 and a grain guide plate 2. The threshing cylinder 11 is arranged on the frame 1, a bearing is arranged on a central shaft 5 of the threshing cylinder 11, the bearing is supported by a bearing seat 9 arranged on the frame 1, a belt wheel 10 is arranged on the central shaft 5, the belt wheel 10 is connected with a motor 14 through a belt 11, and the motor 14 is arranged on the lower part of the frame 1.
As shown in fig. 2, the threshing cylinder 11 comprises a screw propeller 21, a reducing threshing cylinder 18 and an impurity removing cylinder 16, wherein the screw propeller 21, the reducing threshing cylinder 18 and the impurity removing cylinder 16 are coaxially arranged and sequentially connected, the reducing threshing cylinder 18 is arranged between the screw propeller 21 and the impurity removing cylinder 16, the large end of the screw propeller 21 is connected with the small end of the reducing threshing cylinder 18, and the large end of the reducing threshing cylinder 18 is connected with the impurity removing cylinder 16; the spiral propeller 21 body is in a cone cylinder shape, and the surface of the spiral propeller body is provided with spiral blades 22. The body of the reducing threshing cylinder 18 is in a conical cylinder shape, a plurality of (for example, two) first threshing elements 19 which are arranged into a spiral thread shape are uniformly distributed on the surface, and the shape of the spiral thread is obtained by the following formula:
wherein L is the length of the first threshing element, H is the length of the reducing threshing cylinder, S is the pitch (the value range of S is 1.5H ≦ S ≦ 2.5H), D1Is the large end diameter of the diameter-variable threshing cylinder D2Is the diameter of the small end of the diameter-variable threshing cylinder.
The corn threshing device is characterized in that a plurality of rows of second threshing elements 20 are further arranged on the surface of the body of the reducing threshing cylinder 18, each row of second threshing elements 20 is arranged between two adjacent spiral lines formed by the first threshing element 19, the surfaces of the first threshing element 19 and the second threshing element 20 are both of tooth-like structures, the structures are shown in fig. 3, each threshing element is of an approximately triangular tooth-like structure, an included angle β between two tooth-like side surfaces of each threshing element and the horizontal plane is 60 degrees, chamfering angles 25 with the diameter of 2mm are arranged at tooth top positions, the threshing rate can be improved, corn kernels can be prevented from being damaged, chamfering angles 26 with the diameter of 2mm are arranged at tooth root positions, the corn kernels are prevented from being clamped between teeth, a plurality of partition plates 17 are arranged on the surface of the impurity discharging cylinder 16 along the direction parallel to the axis, corn kernels after threshing are removed, a device is prevented from being blocked by intaglio cores, grid 4 is arranged on a rack 1 and is positioned at the lower portion of a roller 11, grid 4 is arranged on the rack 1 and is arranged at the lower portion of the roller 11, the rack, the intaglio plate 18 is provided with a semi-conical grid baffle plate 23 matched with a concave plate 12, a grid baffle plate 12 is arranged on the tail portion of a hopper 7, the lower side of a hopper 7, the hopper 7 is arranged on the hopper, the hopper 6, the hopper 7, the hopper 6 is arranged on the hopper, the hopper.
The working process of the invention is as follows:
when in use, the motor 14 is started, after the motor operates stably, corn to be threshed is fed in through the feeding port 8, corn cobs enter the area where the diameter-variable threshing cylinder 18 is located under the action of the screw propeller 21, threshing is carried out under the combined action of the diameter-variable threshing cylinder 18, the first threshing element 19 and the second threshing element 20, and the corn cobs flow to the large end of the diameter-variable threshing cylinder 18, the crushing rate of the corn cobs can be reduced due to the small linear velocity of the small end when the corn cobs flow to the large end of the diameter-variable threshing cylinder 18, the threshing rate of the corn can be improved due to the large linear velocity of the large end, meanwhile, the movement speed of the corn ears from the small end to the large end is increased, the anti-blocking effect can be effectively achieved, the corn cobs after threshing move to the tail end of the threshing cylinder 11 under the action of the threshing cylinder and then are discharged through the impurity discharging cylinder 16 and the core discharging hopper 3 due to the fact that the corn cobs do not pass through the, then flows out from an outlet on the collecting hopper 12 through the kernel guide plate 2, so as to be convenient for collecting the corn kernels. Thus, the whole process of corn threshing is completed.
By the invention, the corn ears to be threshed can be promoted to move smoothly towards the tail end of the roller, so that the problem of blockage is effectively avoided; the threshing cylinder is provided with a plurality of rows of second threshing elements which are distributed in a staggered manner, so that the threshing rate of the corn can be effectively improved; threshing cylinder is the reducing cylinder, the corncob after the corn ear takes off the grain is got rid of from the main aspects from the tip feeding of cylinder, this kind of threshing mode can avoid too big power directly to rub the corncob because the linear velocity of tip is little, the tangential velocity of corncob cylinder when removing to the main aspects increases gradually, the effect of rubbing to the maize also increases, the threshing rate of maize has been increased, this kind of tip feeding main aspects exhaust threshing mode not only can guarantee the threshing rate but also can make the corncob more complete, the effectual impurity that has reduced in the corn grain of taking off, be favorable to subsequent cleaning.
While the present invention has been described in detail with reference to the embodiments shown in the drawings, the present invention is not limited to the embodiments, and various changes and modifications can be made within the knowledge of those skilled in the art without departing from the spirit of the present invention.
Claims (2)
1. The utility model provides a modular corn thresher, includes frame, grid intaglio, top cap, threshing cylinder, its characterized in that: the threshing cylinder is arranged on the upper part of the frame, the grid intaglio is arranged on the frame and is arranged on the lower part of the threshing cylinder, and the top cover is arranged on the frame and is arranged on the upper part of the threshing cylinder; the threshing cylinder is provided with a diameter-variable part.
2. The modular corn thresher of claim 2, wherein: the trash discharging cylinder is characterized in that a plurality of partition plates are arranged on the surface of the trash discharging cylinder in the direction parallel to the axis.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010095641.5A CN111108919A (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010095641.5A CN111108919A (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111108919A true CN111108919A (en) | 2020-05-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010095641.5A Pending CN111108919A (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Country Status (1)
| Country | Link |
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| CN (1) | CN111108919A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278690Y (en) * | 2008-09-10 | 2009-07-29 | 山东金亿机械制造有限公司 | Novel flexible cross axial flow combined roller |
| CN104365290A (en) * | 2014-02-24 | 2015-02-25 | 约翰迪尔（天津）有限公司 | Threshing and separating device and combine harvester with threshing and separating device |
| CN204408980U (en) * | 2014-12-09 | 2015-06-24 | 呼图壁县和玉生物科技有限公司 | Squeeze stranding formula husker sheller |
| DE202015105824U1 (en) * | 2015-11-02 | 2015-11-11 | Dongyang City Lubate Leisure Products Co., Ltd. | A threshing machine for corn with sorting function |
| CN207022571U (en) * | 2017-07-24 | 2018-02-23 | 江苏农牧科技职业学院 | A kind of maize sheller of noise reduction and depositing dust |
| CN208338348U (en) * | 2018-04-29 | 2019-01-08 | 刘卫林 | A kind of crowded stranding formula corn seed thresing machine |
| CN209420384U (en) * | 2019-01-22 | 2019-09-24 | 包头轻工职业技术学院 | Maize sheller |
| CN211267745U (en) * | 2019-12-18 | 2020-08-18 | 淮安生物工程高等职业学校 | Threshing cylinder reducing corn thresher |
-
2020
- 2020-02-17 CN CN202010095641.5A patent/CN111108919A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201278690Y (en) * | 2008-09-10 | 2009-07-29 | 山东金亿机械制造有限公司 | Novel flexible cross axial flow combined roller |
| CN104365290A (en) * | 2014-02-24 | 2015-02-25 | 约翰迪尔（天津）有限公司 | Threshing and separating device and combine harvester with threshing and separating device |
| CN204408980U (en) * | 2014-12-09 | 2015-06-24 | 呼图壁县和玉生物科技有限公司 | Squeeze stranding formula husker sheller |
| DE202015105824U1 (en) * | 2015-11-02 | 2015-11-11 | Dongyang City Lubate Leisure Products Co., Ltd. | A threshing machine for corn with sorting function |
| CN207022571U (en) * | 2017-07-24 | 2018-02-23 | 江苏农牧科技职业学院 | A kind of maize sheller of noise reduction and depositing dust |
| CN208338348U (en) * | 2018-04-29 | 2019-01-08 | 刘卫林 | A kind of crowded stranding formula corn seed thresing machine |
| CN209420384U (en) * | 2019-01-22 | 2019-09-24 | 包头轻工职业技术学院 | Maize sheller |
| CN211267745U (en) * | 2019-12-18 | 2020-08-18 | 淮安生物工程高等职业学校 | Threshing cylinder reducing corn thresher |
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| PB01 | Publication | ||
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Application publication date: 20200508 |
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| RJ01 | Rejection of invention patent application after publication |