CN221228281U - Millet harvesting threshing cylinder with increased contact surface - Google Patents
Millet harvesting threshing cylinder with increased contact surface Download PDFInfo
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- CN221228281U CN221228281U CN202323316792.7U CN202323316792U CN221228281U CN 221228281 U CN221228281 U CN 221228281U CN 202323316792 U CN202323316792 U CN 202323316792U CN 221228281 U CN221228281 U CN 221228281U
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- threshing
- threshing cylinder
- central shaft
- millet
- fixed
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- 235000013339 cereals Nutrition 0.000 abstract description 17
- 230000000694 effects Effects 0.000 abstract description 5
- 241000209140 Triticum Species 0.000 description 5
- 235000021307 Triticum Nutrition 0.000 description 5
- 239000000463 material Substances 0.000 description 5
- 244000025254 Cannabis sativa Species 0.000 description 2
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- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 2
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 235000005822 corn Nutrition 0.000 description 2
- 235000013305 food Nutrition 0.000 description 2
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- 230000009471 action Effects 0.000 description 1
- 230000037208 balanced nutrition Effects 0.000 description 1
- 235000019046 balanced nutrition Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004459 forage Substances 0.000 description 1
- 235000013402 health food Nutrition 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 244000144972 livestock Species 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Threshing Machine Elements (AREA)
Abstract
The utility model provides a millet harvesting threshing cylinder with an increased contact surface, which solves the problems of unsatisfactory millet threshing effect and damaged grains in the prior art. The sub-harvesting threshing cylinder comprises a supporting frame, wherein a flow guide cover and a concave plate sieve which are arranged up and down are arranged on the supporting frame, and the flow guide cover and the concave plate sieve are arc-shaped and concentric; the central shaft is horizontally arranged and penetrates through the center of the diversion cover and the concave plate screen; a feeding auger fixed to one end of the central shaft; the front threshing cylinder assembly and the rear threshing cylinder assembly are sequentially fixed on the central shaft and concentric with the central shaft; the feeding auger, the central shaft, the front threshing cylinder component and the rear threshing cylinder component synchronously rotate. In the whole, the millet harvesting threshing cylinder has a simple and compact structure, can improve threshing and separating capacity during operation, solves the technical problems of small contact area, short contact time, insufficient threshing, serious breakage and crushing of millet seeds and the like of a conventional threshing device, and has good practicability.
Description
Technical Field
The utility model relates to the technical field of agricultural mechanical harvesting equipment, in particular to a millet harvesting threshing cylinder which is simple in structure and convenient to use and can increase a contact surface.
Background
Millet is an important coarse cereal crop in China, and the millet after being dehulled is called millet. As balanced-nutrition coarse cereal food, meets the requirements of modern people on nutrition and health food, and the millet can be used for making cake snack with excellent taste, so that the cake snack is popular with masses of people. Millet has been a crop used as both food and feed in history, and the fresh stem and leaf of cereal grass and hay have high protein content, are high-quality forage grass for feeding livestock such as cattle, sheep and the like, and have higher economic value.
The mechanized harvesting degree of the millet is lower than that of grain crops such as corn, wheat and the like. The farmers use the wheat harvester and harvest the millet in a plurality of modes, but the mode is only based on a platform of the wheat harvester, and the millet is harvested by replacing concave plates, roller parts or adjusting parameters of the parts, and the wheat harvester is high in efficiency compared with manual harvesting, but the millet is light in weight and small in volume, different from grain crops such as wheat and corn, the millet is harvested in a green harvesting period, the phenomenon of squeezing water is easy to occur during threshing, and millet seeds and Gu Zijing stalks are extremely easy to adhere to cause bigger entrainment loss of the millet seeds in the threshing process. And most of traditional grain threshing devices are rigid threshing drums, after the millet is subjected to rigid impact, the grain yards on the millet are easy to break and separate from the cob, and the seeds are also damaged, so that the threshing effect of the millet is not ideal, and the adaptability of the traditional grain threshing devices in the harvest Gu Zishi is not strong, so that the design and manufacture of the millet threshing device with good threshing performance is very important.
Disclosure of utility model
The utility model provides a millet harvesting threshing cylinder with an increased contact surface, which solves the problems of unsatisfactory millet threshing effect and damaged grains in the prior art.
The technical scheme of the utility model is realized as follows: a millet harvesting threshing cylinder with increased contact surface comprising:
The support frame is provided with a flow guide cover and a concave plate sieve which are arranged up and down, and the flow guide cover and the concave plate sieve are arc-shaped and concentric;
the central shaft is horizontally arranged and penetrates through the center of the diversion cover and the concave plate screen;
A feeding auger fixed to one end of the central shaft;
the front threshing cylinder assembly and the rear threshing cylinder assembly are sequentially fixed on the central shaft and concentric with the central shaft;
The feeding auger, the central shaft, the front threshing cylinder assembly and the rear threshing cylinder assembly synchronously rotate.
As a preferred embodiment, the front threshing cylinder assembly comprises a cylinder-shaped cylinder, wherein the cylinder is of a hollow structure and is concentric with the central shaft;
The outer surface of the roller is provided with a plurality of detachable fan-shaped threshing pieces, the fan-shaped threshing pieces are divided into a plurality of groups, and each group extends on the outer surface of the roller in a spiral shape;
The fan surface of the fan-shaped threshing piece faces the outer side of the roller, and a threshing area is formed between the fan surface of the fan-shaped threshing piece and the concave plate screen.
As a preferred embodiment, a side surface of the fan-shaped threshing member is attached to the outer surface of the roller, and a first bolt hole for fixing the fan-shaped threshing member to the roller is formed in the side surface.
As a preferred implementation mode, the feeding auger comprises a conical cylinder and two feeding blades fixed on the outer surface of the conical cylinder, one end of the conical cylinder is fixedly provided with a belt wheel, the belt wheel is connected with a motor, and the motor drives a central shaft, a front threshing cylinder assembly and a rear threshing cylinder assembly to synchronously rotate through the feeding auger.
As a preferred embodiment, the rear threshing cylinder assembly comprises two auxiliary trays, which are fixed side by side on the central shaft;
The outer fringe of two auxiliary plates is fixed with a plurality of ratch fixed plates through second bolt hole circumference, is fixed with the ratch between the ratch fixed plate that corresponds on two auxiliary plates, the extending direction and the center pin of ratch are parallel, all are fixed with many spike teeth side by side on every ratch, the spike tooth extends towards the outside.
As a preferred embodiment, the inner wall of the guide cover is provided with a guide plate, and the guide angle of the guide plate is gradually increased from front to back.
As a preferred embodiment, the guide plates have three groups, and the guide angles of the three groups of guide plates are 15 °, 18 °, and 20 ° from front to back, respectively.
As a preferred embodiment, the front mesh size on the concave plate screen is 10 x 6mm, the rear mesh size is 30 x 6mm, and the length ratio of the front mesh to the rear mesh on the concave plate screen is 2:1.
After the technical scheme is adopted, the utility model has the beneficial effects that: the threshing machine has a simple and compact integral structure, and the contact surface with materials can be increased by the extrusion and friction between the sector surface of the sector threshing piece and the concave plate sieve when the front threshing cylinder assembly works, so that the materials are threshed in different threshing gaps, the integral threshing separation effect of the cylinder is improved, the threshing of millet is more complete, and the breakage rate of threshing is lower. And then the threshing cylinder component can accelerate the discharge speed of materials and avoid the phenomenon of blockage by combining the design of the spike teeth and the gradually-increased structural design of the guide angle in the guide cover.
Drawings
In order to more clearly illustrate the embodiments of the utility model or the technical solutions of the prior art, the drawings which are used in the description of the embodiments or the prior art will be briefly described, it being obvious that the drawings in the description below are only some embodiments of the utility model, and that other drawings can be obtained according to these drawings without inventive faculty for a person skilled in the art.
FIG. 1 is a schematic diagram of an embodiment of the present utility model;
FIG. 2 is a schematic illustration of the internal structure of the present utility model;
FIG. 3 is a schematic view of the structure of the front threshing cylinder assembly;
FIG. 4 is a schematic view of the structure of the rear threshing cylinder assembly;
Fig. 5 and 6 are schematic structural views of fan-shaped threshing pieces;
FIG. 7 is a schematic view of the structure of the deflector cover;
FIG. 8 is a schematic view of a concave screen;
FIG. 9 is a schematic structural view of a support frame;
In the figure: 1-feeding a screw; 2-a diversion cover; 3-concave plate screen; 4-a front threshing cylinder assembly; 5-a rear threshing cylinder assembly; 6-supporting frames; 7-pulleys; 8-feeding blades; 9-a cone; 10-roller; 11-a fan-shaped threshing piece; 12-a first bolt hole; 13-auxiliary discs; 14-a rack bar fixing plate; 15-tooth bar; 16-spike teeth; 17-central axis; 18-a second bolt hole; 19-guide plate.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Examples:
As shown in fig. 1, an embodiment of the millet harvesting threshing cylinder with increased contact surface according to the utility model first comprises a stationary support frame 6 (as shown in fig. 9), which support frame 6 corresponds to a base for mounting other equipment.
As shown in fig. 1 and fig. 2 together, a central shaft 17 is horizontally installed on the supporting frame 6, the feeding auger 1, the front threshing cylinder assembly 4 and the rear threshing cylinder assembly 5 are sequentially installed on the central shaft 17 from left to right, and the three structures of the feeding auger 1, the front threshing cylinder assembly 4 and the rear threshing cylinder assembly 5 are directly and fixedly connected with the central shaft 17, so that the feeding auger, the front threshing cylinder assembly 4 and the rear threshing cylinder assembly 5 can be realized in various manners such as welding in actual production. The left end of the feeding auger 1 is fixedly connected with a belt wheel 7, the belt wheel 7 is connected with a motor (not shown in the figure), and the motor drives the structure to synchronously rotate along the axis of the central shaft 17.
The feeding auger 1 in the embodiment comprises feeding blades 8 and a conical barrel 9, wherein the feeding blades 8 are welded and fixed on the conical barrel 9, the feeding blades 8 are two in number and uniformly distributed on the conical barrel 9, and crops are fed forcibly under the rotation action of the feeding blades 8 at the front end of the threshing cylinder, so that blockage is prevented.
The front threshing cylinder assembly 4 and the rear threshing cylinder assembly 5 are the core parts of the embodiment, as shown in fig. 3, the front threshing cylinder assembly 4 comprises a cylinder 10 with a hollow structure, a central shaft 17 penetrates through the center of the cylinder 10, a plurality of fan-shaped threshing pieces 11 are arranged on the cylinder 10, the fan-shaped threshing pieces 11 are convenient to detach, as shown in fig. 4 and 5, one side surface of each fan-shaped threshing piece 11 is attached to the outer surface of the cylinder 10, and a first bolt hole 12 for fixing the fan-shaped threshing piece 11 on the cylinder 10 is arranged on the side surface. These fan-shaped threshing members 11 are divided into groups (five groups are shown in fig. 3), each of which extends in a spiral shape on the outer surface of the drum 10. The fan surface of the fan-shaped threshing piece 11 faces the outer side of the roller 10, a threshing area is formed between the fan surface of the fan-shaped threshing piece 11 and the concave plate screen 3, compared with a traditional threshing element, the contact area with grains is larger, and grains can be threshed in different threshing gaps, so that the grains are threshed more fully, and the breakage rate of grains is lower.
As shown in fig. 4, the rear threshing cylinder assembly 5 comprises two auxiliary plates 13 arranged side by side, the two auxiliary plates 13 are welded and fixed on a central shaft 17, a plurality of second bolt holes 18 are formed in the auxiliary plates 13, six toothed bar fixing plates 14 are circumferentially fixed on the auxiliary plates 13 through the second bolt holes 18, toothed bars 15 are fixed between the corresponding toothed bar fixing plates 14 on the two auxiliary plates 13, the extending direction of the toothed bars 15 is parallel to the central shaft 17 and also in the horizontal direction, a plurality of spike teeth 16 are fixed on each toothed bar 15 side by side, the spike teeth 16 extend towards the outer side, and the main function of the rear threshing cylinder assembly 5 is to comb and impact grains threshed by the front threshing cylinder assembly 4 again, so that the materials are discharged out faster, and meanwhile, the grains are separated into a cleaning mechanism.
As shown in fig. 1, 7 and 8, a guide cover 2 and a concave screen 3 are respectively installed on the support frame 6, wherein the guide cover 2 and the concave screen 3 are arc-shaped and form a circle, and the center shaft 17 is exactly positioned at the axis position. The guide plate 19 is arranged on the inner wall of the guide cover 2, the guide angle of the guide plate 19 from the front end to the rear end is gradually increased, and the guide angle is the included angle between the guide plate 19 and the axial direction of the guide cover 2. The front end is a main threshing area, the guide angle is relatively small, the axial movement speed of crops is relatively low, the threshing elements are enabled to act more fully, the guide angle of the rear end is relatively large, the axial movement speed of materials is accelerated, the anti-blocking effect is achieved, the guide angle of the guide plate 19 is gradually increased from the front end to the rear end, and according to practical experiments, the guide plate 19 is arranged into three groups, and the guide angles are 15 degrees, 18 degrees and 20 degrees in sequence. The sieve mesh size of the concave plate sieve 3 is verified by practical experimental data, the sieve mesh size of the left end part is 10 x 6mm, the sieve mesh size of the right end part is 30 x 6mm, and the length ratio of the left part to the right part is 2:1. The left end part is a main threshing section, most of seeds can be removed through small sieve holes, and impurities are filtered; the right end part is a crushing section, and the small residual grains difficult to be shed can be screened into a cleaning part by large sieve holes, so that threshing loss is reduced.
In the whole, the millet harvesting threshing cylinder has a simple and compact structure, can improve threshing and separating capacity during operation, solves the technical problems of small contact area, short contact time, insufficient threshing, serious breakage and crushing of millet seeds and the like of a conventional threshing device, and has good practicability.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, alternatives, and improvements that fall within the spirit and scope of the utility model.
Claims (8)
1. A millet harvesting threshing cylinder with increased contact surface, comprising:
The support frame (6) is provided with a diversion cover (2) and a concave plate screen (3) which are arranged up and down, and the diversion cover (2) and the concave plate screen (3) are arc-shaped and concentric;
the central shaft (17) is horizontally arranged and penetrates through the centers of the diversion cover (2) and the concave plate screen (3);
a feeding auger (1) fixed to one end of the central shaft (17);
a front threshing cylinder assembly (4) and a rear threshing cylinder assembly (5), which are sequentially fixed on the central shaft (17) and concentric with the central shaft;
The feeding auger (1), the central shaft (17), the front threshing cylinder component (4) and the rear threshing cylinder component (5) synchronously rotate.
2. The increased contact surface millet harvesting threshing cylinder of claim 1, wherein: the front threshing cylinder assembly (4) comprises a cylindrical cylinder (10), and the cylinder (10) is of a hollow structure and is concentric with the central shaft (17);
The outer surface of the roller (10) is provided with a plurality of detachable fan-shaped threshing pieces (11), the fan-shaped threshing pieces (11) are divided into a plurality of groups, and each group extends on the outer surface of the roller (10) in a spiral shape;
the fan surface of the fan-shaped threshing piece (11) faces the outer side of the roller (10), and a threshing area is formed between the fan surface of the fan-shaped threshing piece (11) and the concave plate screen (3).
3. The increased contact surface millet harvesting threshing cylinder of claim 2, wherein: one side surface of the fan-shaped threshing piece (11) is attached to the outer surface of the roller (10), and a first bolt hole (12) for fixing the fan-shaped threshing piece (11) on the roller (10) is formed in the side surface.
4. The increased contact surface millet harvesting threshing cylinder of claim 1, wherein: the feeding auger (1) comprises a conical cylinder (9) and two feeding blades (8) fixed on the outer surface of the conical cylinder (9), one end of the conical cylinder (9) is fixed with a belt wheel (7), the belt wheel (7) is connected with a motor, and the motor drives a central shaft (17), a front threshing cylinder assembly (4) and a rear threshing cylinder assembly (5) to synchronously rotate through the feeding auger (1).
5. The increased contact surface millet harvesting threshing cylinder of claim 1, wherein: the rear threshing cylinder assembly (5) comprises two auxiliary discs (13), and the two auxiliary discs (13) are fixed on the central shaft (17) side by side;
The outer fringe of two auxiliary disc (13) is fixed with a plurality of ratch fixed plates (14) through second bolt hole (18) circumference, is fixed with ratch (15) between corresponding ratch fixed plate (14) on two auxiliary disc (13), the extending direction and the center pin (17) of ratch (15) are parallel, all are fixed with a plurality of spike teeth (16) side by side on every ratch (15), spike teeth (16) are towards the outside extension.
6. The increased contact surface millet harvesting threshing cylinder of claim 1, wherein: the inner wall of the diversion cover (2) is provided with a guide plate (19), and the guide angle of the guide plate (19) is gradually increased from front to back.
7. The increased contact surface millet harvesting threshing cylinder of claim 6, wherein: the guide plates (19) are in three groups, and the guide angles of the three groups of guide plates (19) are 15 degrees, 18 degrees and 20 degrees respectively from front to back.
8. The increased contact surface millet harvesting threshing cylinder of claim 1, wherein: the front sieve pore size of the concave plate sieve (3) is 10 x 6mm, the rear sieve pore size of the concave plate sieve (3) is 30 x 6mm, and the length ratio of the front sieve pore to the rear sieve pore on the concave plate sieve (3) is 2:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323316792.7U CN221228281U (en) | 2023-12-06 | 2023-12-06 | Millet harvesting threshing cylinder with increased contact surface |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323316792.7U CN221228281U (en) | 2023-12-06 | 2023-12-06 | Millet harvesting threshing cylinder with increased contact surface |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221228281U true CN221228281U (en) | 2024-06-28 |
Family
ID=91600834
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323316792.7U Active CN221228281U (en) | 2023-12-06 | 2023-12-06 | Millet harvesting threshing cylinder with increased contact surface |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221228281U (en) |
-
2023
- 2023-12-06 CN CN202323316792.7U patent/CN221228281U/en active Active
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