CN212232220U - Combined corn thresher - Google Patents
Combined corn thresher Download PDFInfo
- Publication number
- CN212232220U CN212232220U CN202020178089.1U CN202020178089U CN212232220U CN 212232220 U CN212232220 U CN 212232220U CN 202020178089 U CN202020178089 U CN 202020178089U CN 212232220 U CN212232220 U CN 212232220U
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- Prior art keywords
- threshing
- cylinder
- threshing cylinder
- diameter
- corn thresher
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- 235000002017 Zea mays subsp mays Nutrition 0.000 title claims abstract description 59
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 title claims abstract description 57
- 235000005822 corn Nutrition 0.000 title claims abstract description 57
- 241000251169 Alopias vulpinus Species 0.000 title claims abstract description 26
- 240000008042 Zea mays Species 0.000 title claims description 57
- 239000012535 impurity Substances 0.000 claims description 19
- 238000007599 discharging Methods 0.000 claims description 8
- 239000010813 municipal solid waste Substances 0.000 claims description 4
- 238000005192 partition Methods 0.000 claims description 3
- 241000209149 Zea Species 0.000 abstract 2
- 235000013339 cereals Nutrition 0.000 description 6
- 210000005069 ears Anatomy 0.000 description 3
- 235000016383 Zea mays subsp huehuetenangensis Nutrition 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 238000003306 harvesting Methods 0.000 description 2
- 235000009973 maize Nutrition 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
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- Threshing Machine Elements (AREA)
Abstract
The utility model discloses a combined corn thresher, which comprises a frame, a grid concave plate, a top cover and a threshing cylinder, wherein the threshing cylinder is arranged at the upper part of the frame; the threshing cylinder is provided with a diameter-variable part. Through the utility model discloses, can promote the corn ear of grain threshed to the terminal smooth and easy removal of cylinder to effectively avoid the problem of jam.
Description
Technical Field
The utility model relates to the technical field of agricultural machinery, especially, relate 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.
In order to solve the problems, the utility model provides a combined corn thresher.
SUMMERY OF THE UTILITY MODEL
In order to realize the purpose of the utility model, the following technical scheme is adopted to realize:
a combined corn thresher comprises a frame, a grid concave plate, a top cover and a threshing cylinder, wherein: the threshing cylinder is arranged on the upper part of the frame, the grid concave plate is arranged on the frame and arranged on the lower part of the threshing cylinder, and the top cover is arranged on the frame and 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 concave plate comprises a semi-conical grid concave plate and a semi-cylindrical grid concave plate.
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 concave plate, 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 of 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 bucket 4 and grid concave plate
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 concave plate 24 and conical grid concave plate
Detailed Description
The following describes in detail embodiments of the present invention with reference 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 concave plate 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.
A plurality of rows of second threshing elements 20 are further arranged on the surface of the body of the reducing threshing cylinder 18, and each row of second threshing elements 20 is arranged between two adjacent spiral lines formed by the first threshing elements 19; the surfaces of the first threshing element 19 and the second threshing element 20 are both of a tooth-like structure, the structure is shown in figure 3, wherein each threshing element is of an approximately triangular dentate structure, the included angle beta between the two tooth-shaped side surfaces of the threshing element and the horizontal plane is 60 degrees, the tooth top part is provided with a fillet 25 with the diameter of 2mm, the threshing rate can be improved, the corn kernel can be prevented from being damaged, the tooth root part is provided with a fillet 26 with the diameter of 2mm, so as to avoid the corn kernels which are taken off from being clamped between teeth, a plurality of partition plates 17 are arranged on the surface of the impurity removing barrel 16 along the direction parallel to the axis, to promote the removal of the corn cob after threshing and prevent the corn cob from blocking the threshing device, a grid concave plate 4 is arranged on the frame 1 and is positioned at the lower part of the roller 11, as shown in figure 4, the grid concave plate 4 consists of a semi-conical grid concave plate 23 which is matched with the reducing threshing cylinder 18 for rubbing threshing and a semi-cylindrical grid concave plate 24 which is matched with the impurity discharging cylinder 16. As shown in fig. 1, the collecting hopper 12 is arranged at the lower part of the grid concave plate 4 and is installed on the frame 1, as shown in fig. 5, the collecting hopper 12 is in a funnel shape, wherein the included angle between the first side baffle 27 and the second side baffle 28 of the collecting hopper 12 is 90 degrees, and the included angle between the baffle 29 respectively connecting the first side baffle 27 and the second side baffle 28 and the horizontal plane is 30 degrees; as shown in fig. 1, a discharge port is arranged at the tail of the aggregate bin 12, a grain guide plate 2 is arranged at the lower part of the discharge port, the grain guide plate 2 is fixed on the frame through bolts, a semi-conical top cover 7 matched with the reducing threshing cylinder 18 and a semi-cylindrical top cover 6 matched with the impurity removing cylinder are arranged at the upper part of the threshing cylinder 11, and a feeding hopper 8 is arranged at the upper part of the screw propeller 21. The core discharging hopper 3 is arranged at the tail part of the impurity discharging barrel 16, and the core discharging hopper 3 is arranged on the machine frame 1.
The utility model discloses the working process 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, when 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, 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 without penetrating through the grid concave plate 4 and then are discharged through the, the corn kernels which are removed pass through the grid concave plate 4 and fall into the collecting hopper 12, and then flow out from an outlet on the collecting hopper 12 through the kernel guide plate 2, so that the corn kernels can be collected conveniently. Thus, the whole process of corn threshing is completed.
By the utility model, the corn ears to be threshed can be promoted to move smoothly towards the tail end of the roller, thereby effectively avoiding the problem of blockage; 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 particularly shown and described with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a combined corn thresher, includes frame, grid notch board, top cap, threshing cylinder, its characterized in that: the threshing cylinder is arranged on the upper part of the frame, the grid concave plate is arranged on the frame and arranged on the lower part of the threshing cylinder, and the top cover is arranged on the frame and arranged on the upper part of the threshing cylinder; the threshing cylinder is provided with a diameter-variable part; the grid concave plate comprises a semi-conical grid concave plate and a semi-cylindrical grid concave plate.
2. The modular corn thresher of claim 1, wherein: 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.
3. The modular corn thresher of claim 2, wherein: the spiral propeller body is in a cone cylinder shape, and spiral blades are arranged on the surface of the spiral propeller body.
4. The modular corn thresher of claim 2, wherein: 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.
5. 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.
6. The modular corn thresher of claim 1, wherein: the caps include semi-conical caps and semi-cylindrical caps.
7. The modular corn thresher of claim 4, wherein: 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.
8. The modular corn thresher of claim 4, wherein: 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.
9. The modular corn thresher of claim 1, wherein: still include the collecting hopper, the collecting hopper is including connecting first side shield, second side shield and baffle, and the baffle both sides are connected respectively with first side shield and second side shield, the collecting hopper sets up in grid concave plate lower part, and the whole shape of collecting hopper is the funnel shape, and wherein the first side shield of collecting hopper and the contained angle between the second side shield are 90, and the baffle is 30 with the contained angle of horizontal plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020178089.1U CN212232220U (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020178089.1U CN212232220U (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212232220U true CN212232220U (en) | 2020-12-29 |
Family
ID=73990417
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020178089.1U Expired - Fee Related CN212232220U (en) | 2020-02-17 | 2020-02-17 | Combined corn thresher |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212232220U (en) |
-
2020
- 2020-02-17 CN CN202020178089.1U patent/CN212232220U/en not_active Expired - Fee Related
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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: 20201229 |
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| CF01 | Termination of patent right due to non-payment of annual fee |