Equipment for screening sorghum seeds

By introducing eccentric structures and air selection mechanisms into the screening machine, the swing amplitude of the screening structure and removing impurities are solved, and the problem of small vibration amplitude of the existing screening machine is realized efficient screening and classified storage of sorghum seeds.

CN223184923UActive Publication Date: 2025-08-05SICHUAN DONGYUAN AGRICULTURAL EQUIPMENT CO LTD
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Patent Information

Application Number
CN202421785633.3
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-26
Publication Date
2025-08-05
Estimated Expiration
2034-07-26

AI Technical Summary

Technical Problem

During the use of existing screening machines, the setting of eccentric structures and vibration structures leads to a small vibration amplitude of the vibrating screen, making it difficult to fully screen sorghum seeds.

Method used

By setting up a screening structure connected to the driving mechanism on the support frame, the screening structure has a greater swing amplitude and is equipped with a air selection mechanism to remove impurities, including plastic wire, debris, mud, dust, leaves, and dry weed wire.

Benefits of technology

The full screening and impurity removal of sorghum seeds are achieved to ensure that the screened sorghum seeds are stored and sold according to their size, and improve screening efficiency and purity.

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Abstract

The utility model discloses a device for screening sorghum seeds, which comprises a support frame, a screening structure is arranged on the support frame, the screening structure is rotatably connected with the support frame, the support frame is further connected with a driving mechanism, an eccentric structure is arranged between the driving mechanism and the screening structure, one end of the eccentric structure is rotatably connected with the output end of the driving mechanism, and the other end of the eccentric structure is rotatably connected with the output end of the driving mechanism. One end of the eccentric structure is rotatably connected with the vibrating structure, the other end of the eccentric structure is rotatably connected with one end of the screening structure, the supporting frame is further connected with a winnowing mechanism, and the discharging end of the winnowing mechanism is located above the feeding end of the screening structure. Therefore, the problem that the sorghum seeds are difficult to fully screen due to the fact that an eccentric structure and a vibration structure are arranged in the using process of an existing screening machine, the vibration amplitude of a vibration screen body is small is solved.
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Description

Technical Field

[0001] The utility model belongs to the field of screening sorghum seeds and relates to a device for screening sorghum seeds. Background Art

[0002] Sorghum is an herbaceous plant of the Poaceae family. According to its properties and uses, sorghum can be divided into edible sorghum, sugar sorghum, broom sorghum and other categories. The grains of edible sorghum are used for food and winemaking; the stalks of sugar sorghum can be made into syrup or eaten raw; the ears of broom sorghum can be made into brooms or cooking brooms; the young leaves of sorghum can be dried in the shade for silage or dried in the sun for use as feed; the caryopsis of sorghum can be used as medicine, which has the effects of drying dampness, removing phlegm, and calming the mind.

[0003] Sorghum can be planted every year, so it is an economic crop. After the sorghum is picked, it is dried and the sorghum seeds are obtained. The sorghum seeds have different sizes, and sorghum seeds of different sizes have different prices. Therefore, the sorghum seeds need to be screened. A small number of growers currently complete the screening of sorghum seeds manually, but this screening method is inefficient and requires angled screening tools. Some growers use a universal screening machine, but this screening machine is used for the setting of an eccentric structure and a vibration structure during use, which results in a small vibration amplitude of the vibrating screen body, which makes it difficult to fully screen the sorghum seeds. Therefore, in order to solve the above technical problems, the technical solution of the present application is set. Utility Model Content

[0004] The purpose of the utility model is to provide a device for screening sorghum seeds, which solves the above-mentioned technical problems.

[0005] The technical solutions adopted in this utility model are as follows:

[0006] A device for screening sorghum seeds comprises a support frame, a screening structure is provided on the support frame, the screening structure is rotatably connected to the support frame, a driving mechanism is also connected to the support frame, an eccentric structure is provided between the driving mechanism and the screening structure, one end of the eccentric structure is rotatably connected to the output end of the driving mechanism, and the other end of the eccentric structure is rotatably connected to one end of the screening structure, and a wind selection mechanism is also connected to the support frame, and the discharge end of the wind selection mechanism is located above the feed end of the screening structure.

[0007] The working principle of the utility model is as follows: the support frame is used to rotatably connect the screening structure, and the screening structure is rotatably connected to the support frame, so that the screening structure has a larger swing amplitude, which facilitates the screening structure to fully screen the sorghum seeds. The screening structure is used to screen the sorghum seeds, so that sorghum seeds of different sizes are screened, and then the screened sorghum seeds are stored separately, and finally the screened sorghum seeds are sold at different prices. The support frame is also used to connect the driving mechanism, and the driving mechanism is directly connected to the eccentric structure, so that the power generated by the driving mechanism is directly transmitted to the eccentric structure, and then the screening structure is driven to swing through the eccentric structure.

[0008] Preferably, by setting the size of the support disk in the eccentric structure and then setting the gap at the connection position on the support disk, the swing amplitude of the screening structure is finally made larger, so that the sorghum seeds can be fully screened. The air separation mechanism connected to the support frame is used to screen the impurities contained in the sorghum seeds. The impurities include plastic filaments, debris, mud, dust, leaves, and dry weed filaments. The sorghum seeds are poured into the air separation mechanism, and the impurities in the sorghum seeds are screened out by the air separation mechanism. The screened sorghum seeds enter the feed end of the screening structure, thereby avoiding impurities from entering the screening structure. This solves the problem that the eccentric structure and the vibration structure of the existing screening machine are set during use, resulting in a small vibration amplitude of the vibrating screen body, which makes it difficult to fully screen the sorghum seeds.

[0009] Furthermore: the screening structure includes a screening trough body arranged obliquely downward, the screening trough body is rotatably connected to the support frame through a swing assembly, several layers of screening grids are connected between the inner walls of the screening trough body, and the several layers of screening grids are arranged at equal intervals from top to bottom along the inner wall of the screening trough body, and the discharge end of the screening trough body is provided with several discharge troughs, and the several discharge troughs correspond one-to-one to the several screening grids and are respectively connected to the discharge ends of the several screening grids.

[0010] Furthermore: the swing assembly includes a first bearing, a second bearing, and a swing bar. The inner ring of the first bearing is locked with the support frame through studs and nuts. The inner ring of the second bearing is connected to the outer walls on both sides of the screening trough through studs and nuts. The outer ring of the first bearing is connected to one end of the swing bar, and the outer ring of the second bearing is connected to the other end of the swing bar.

[0011] Furthermore: the driving mechanism includes a driving motor, which is locked and connected to the support frame through studs and nuts. A driving shaft is connected inside the driving motor, and an output end of the driving shaft is connected to one end of the eccentric structure.

[0012] Furthermore: the eccentric structure includes a support plate and a support bar. The support plate is a cylinder and its axis is connected to the output end of the driving mechanism. One end of the support bar is rotatably connected to the edge of the support plate through a stud and a nut, and the other end of the support bar is rotatably connected to one end of the screening structure through a stud and a nut.

[0013] Furthermore: the air separation mechanism includes an air separation box, which is connected to the support frame through studs and nuts. An air separation component is provided inside the air separation box, and the two ends of the air separation component are respectively rotatably connected to the air separation box. A feed port is provided on the top of the air separation box, and a discharge port is provided on the bottom of the air separation box. The discharge port is located above the feed end of the screening structure. A slag discharge port is provided on one side of the air separation box, and a slag discharge trough is connected to the slag discharge port. The discharge end of the slag discharge trough is located outside the screening structure.

[0014] Furthermore: the air separation component includes an air separation motor, which is located outside the air separation box and is connected to the support frame through studs and nuts. The air separation motor is internally connected to a wind separation shaft, and both ends of the wind separation shaft are rotatably connected to the air separation box through bearings. A number of air separation blades are provided on the outer wall of the air separation shaft, and the several air separation blades are arranged at equal intervals around the outer wall of the air separation shaft and are all located inside the air separation box.

[0015] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are:

[0016] 1. A device for screening sorghum seeds, wherein a screening structure is rotatably connected to a support frame, so that the screening structure has a larger swing amplitude, thereby facilitating the screening structure to fully screen the sorghum seeds;

[0017] 2. In the present invention, sorghum seeds are poured into the interior of the air separation mechanism, and impurities in the sorghum seeds are screened out by the air separation mechanism. The screened sorghum seeds enter the feed end of the screening structure, thereby preventing impurities from entering the interior of the screening structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the embodiments. It should be understood that the following drawings only illustrate certain embodiments of the present invention and should not be regarded as limiting the scope. A person of ordinary skill in the art can also derive other relevant drawings based on these drawings without inventive effort, among which:

[0019] Figure 1 It is a structural diagram of the utility model;

[0020] Figure 2 It is a structural diagram of the present utility model.

[0021] Markings in the figure: 1-support frame, 2-screening trough, 3-screening grid, 4-discharge trough, 5-first bearing, 6-second bearing, 7-swing bar, 8-drive motor, 9-drive shaft, 10-support plate, 11-support bar, 12-air separation box, 13-feed port, 14-discharge port, 15-slag discharge port, 16-slag discharge trough, 17-air separation motor, 18-air separation shaft, 19-air separation blade. DETAILED DESCRIPTION

[0022] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only for the purpose of explaining the present invention and are not intended to limit the present invention. That is, the embodiments described herein are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and illustrated in the drawings herein can be arranged and designed in a variety of different configurations.

[0023] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative work are within the scope of protection of the present invention.

[0024] It should be noted that relational terms such as "first" and "second" are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or apparatus comprising the element.

[0025] The features and performance of the present invention are further described in detail below with reference to the embodiments.

[0026] Example 1

[0027] The utility model discloses a device for screening sorghum seeds. Figure 1As shown, it includes a support frame 1, a screening structure is provided on the support frame 1, and the screening structure is rotatably connected to the support frame 1. A driving mechanism is also connected to the support frame 1, and an eccentric structure is provided between the driving mechanism and the screening structure. One end of the eccentric structure is rotatably connected to the output end of the driving mechanism, and the other end of the eccentric structure is rotatably connected to one end of the screening structure. The support frame 1 is also connected to a wind selection mechanism, and the discharge end of the wind selection mechanism is located above the feed end of the screening structure.

[0028] The specific implementation method of this embodiment is: the support frame is used to rotatably connect the screening structure, and the screening structure is rotatably connected to the support frame, so that the screening structure has a larger swing amplitude, which facilitates the screening structure to fully screen the sorghum seeds. The screening structure is used to screen the sorghum seeds, so that sorghum seeds of different sizes can be screened, and the screened sorghum seeds are then stored separately, and finally the screened sorghum seeds are sold at different prices.

[0029] The support frame is also used to connect the driving mechanism, which is directly connected to the eccentric structure, so that the power generated by the driving mechanism is directly transmitted to the eccentric structure, and then the screening structure is driven to swing through the eccentric structure. Preferably, by setting the size of the support disk in the eccentric structure, and then setting the gap at the connection position on the support disk, the swing amplitude of the screening structure is finally made larger, so that the sorghum seeds can be fully screened.

[0030] The air separation mechanism connected to the support frame is used to screen impurities contained in sorghum seeds, including plastic filaments, debris, mud, dust, leaves, and dry weed filaments. The sorghum seeds are poured into the air separation mechanism, and the impurities in the sorghum seeds are screened out by the air separation mechanism. The screened sorghum seeds enter the feed end of the screening structure, thereby preventing impurities from entering the screening structure.

[0031] Preferably, the screening equipment in the present application can not only screen and winnow sorghum seeds, but also screen and winnow rapeseed and soybeans among crops.

[0032] Example 2

[0033] The utility model discloses a device for screening sorghum seeds. Figure 1 As shown, the screening structure includes a screening trough body 2 arranged obliquely downward, the screening trough body 2 is rotatably connected to the support frame 1 through a swing assembly, several layers of screening grids 3 are connected between the inner walls of the screening trough body 2, and the several layers of screening grids 3 are arranged at equal intervals from top to bottom along the inner wall of the screening trough body 2, and the discharge end of the screening trough body 2 is provided with several discharge troughs 4, and the several discharge troughs 4 correspond one-to-one to the several screening grids 3 and are respectively connected to the discharge ends of the several screening grids 3.

[0034] The swing assembly includes a first bearing 5, a second bearing 6, and a swing bar 7. The inner ring of the first bearing 5 is locked with the support frame 1 through studs and nuts. The inner ring of the second bearing 6 is connected to the outer walls on both sides of the screening trough body 2 through studs and nuts. The outer ring of the first bearing 5 is connected to one end of the swing bar 7, and the outer ring of the second bearing 6 is connected to the other end of the swing bar 7.

[0035] The driving mechanism includes a driving motor 8, which is locked to the support frame 1 through studs and nuts. A driving shaft 9 is connected inside the driving motor 8, and an output end of the driving shaft 9 is connected to one end of the eccentric structure.

[0036] The specific implementation method of this embodiment is: the inclined screening trough body is convenient for the sorghum seeds to move along each layer of the screening grid under the action of gravity and vibration, so that the sorghum seeds are fully dispersed during the movement, and the dispersed sorghum seeds are screened along several screening grids. Preferably, the aperture of the uppermost screening grid is the largest, so that the largest-sized sorghum seeds remain on the uppermost screening grid, while the smaller sorghum seeds fall downward along the aperture of the screening grid in turn, and the aperture of the lowermost screening grid is the smallest, so that the smallest-sized sorghum seeds remain on the lowermost screening grid. Preferably, there is a gap between the lowermost screening grid and the bottom of the inner wall of the screening trough body, so that a small amount of debris, mud, and dust that enters with the sorghum seeds can be screened again.

[0037] The sorghum seeds after screening enter the corresponding discharge trough, and then the discharge trough is inclined to facilitate the transportation of the sorghum seeds after screening into the corresponding collecting device.

[0038] The outer walls on both sides of the screening trough body are rotatably connected to the first bearing and the second bearing through support bars respectively. The first bearing cooperates with the support bar and the second bearing to make the screening trough body rotatably connected to the support frame. The purpose of the rotational connection is to make the screening trough body swing with the eccentric structure with a larger amplitude, thereby facilitating the sorghum seeds to be fully dispersed on the screening grid, and then enter the corresponding screening grid through the aperture on the screening grid, so that sorghum seeds of different particle sizes can be fully screened.

[0039] The drive motor is convenient for installation and disassembly with the support frame through studs and nuts. The drive motor is used to drive the drive shaft to rotate, and the drive shaft is used to drive the support disk to rotate.

[0040] Example 3

[0041] The utility model discloses a device for screening sorghum seeds. Figure 1As shown, the eccentric structure includes a support disk 10 and a support bar 11. The support disk 10 is a cylinder and its axis is connected to the output end of the driving mechanism. One end of the support bar 11 is rotatably connected to the edge of the support disk 10 through a stud and a nut, and the other end of the support bar 11 is rotatably connected to one end of the screening structure through a stud and a nut.

[0042] The air separation mechanism includes an air separation box 12, which is connected to the support frame 1 through studs and nuts. An air separation component is provided inside the air separation box 12, and both ends of the air separation component are rotatably connected to the air separation box 12. A feed port 13 is provided at the top of the air separation box 12, and a discharge port 14 is provided at the bottom of the air separation box 12. The discharge port 14 is located above the feed end of the screening structure. A slag discharge port 15 is provided on one side of the air separation box 12, and a slag discharge trough 16 is connected to the slag discharge port 15. The discharge end of the slag discharge trough 16 is located outside the screening structure.

[0043] The air separation component includes an air separation motor 17, which is located outside the air separation box 12 and is connected to the support frame 1 through studs and nuts. The air separation motor 17 is internally connected to the air separation shaft 18, and the two ends of the air separation shaft 18 are rotatably connected to the air separation box 12 through bearings. A number of air separation blades 19 are provided on the outer wall of the air separation shaft 18. The several air separation blades 19 are arranged at equal intervals around the outer wall of the air separation shaft 18 and are all located inside the air separation box 12.

[0044] The specific implementation method of this embodiment is: the drive shaft is connected to the axis of the support disk, the drive shaft drives the support disk to rotate, and the support disk drives the support bar to move around the edge of the support disk during the rotation of the support disk. The other end of the support bar drives the entire screening trough body to swing during the rotation of the support disk. By setting the size of the support disk and the gap difference between the drive shaft, one end of the support bar and the support disk, the entire screening trough body is driven to vibrate fully.

[0045] The air separation box body is convenient for installation or disassembly with the support frame through studs and nuts. The top of the air separation box body is used to set the feed port, which makes it convenient to air separate the sorghum seeds to be screened. The purpose of air separation is to remove plastic filaments, debris, mud, dust, leaves, and dry weeds in the sorghum seeds, so as to facilitate the pure sorghum seeds to enter the feed end of the screening trough body through the discharge port, while the plastic filaments, debris, mud, dust, leaves, and dry weeds are discharged through the slag discharge port and the slag discharge trough. Preferably, the discharge end of the slag discharge trough is located outside the screening trough body, which avoids the screened-out plastic filaments, debris, mud, dust, leaves, and dry weeds from being mixed into the sorghum seeds again.

[0046] The winnowing motor is installed or disassembled by means of studs, nuts and support frames. The winnowing motor is located outside the winnowing box for easy operation, while avoiding occupying space inside the winnowing box, and facilitating heat dissipation during the operation of the winnowing motor. The winnowing motor drives the winnowing shaft to rotate, and the rotation of the winnowing shaft drives the winnowing blades to rotate. The wind force generated during the rotation of the winnowing blades is convenient for blowing towards the sorghum seeds and plastic filaments, debris, mud, dust, leaves, and dry weed filaments. Sorghum seeds have a stronger ability to resist wind than plastic filaments, debris, mud, dust, leaves, and dry weed filaments, so that the sorghum seeds enter the discharge port, while plastic filaments, debris, mud, dust, leaves, and dry weed filaments enter the slag discharge port. Preferably, several winnowing blades are all facing the slag discharge port, so that the plastic filaments, debris, mud, dust, leaves, and dry weed filaments can be directly discharged into the slag discharge port and the slag discharge trough after winnowing.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modifications, equivalent substitutions and improvements made by any technician familiar with the field within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A device for screening sorghum seeds, characterized in that: The invention comprises a support frame (1), a screening structure is provided on the support frame (1), the screening structure is rotatably connected to the support frame (1), a driving mechanism is further connected to the support frame (1), an eccentric structure is provided between the driving mechanism and the screening structure, one end of the eccentric structure is rotatably connected to the output end of the driving mechanism, and the other end of the eccentric structure is rotatably connected to one end of the screening structure, and a wind selection mechanism is further connected to the support frame (1), the discharge end of the wind selection mechanism is located above the feed end of the screening structure.

2. The device for screening sorghum seeds according to claim 1, characterized in that: The screening structure comprises a screening trough body (2) arranged obliquely downward, the screening trough body (2) being rotatably connected to a support frame (1) via a swinging assembly, a plurality of layers of screening grids (3) being connected between the inner walls of the screening trough body (2), the plurality of layers of screening grids (3) being arranged at equal intervals from top to bottom along the inner wall of the screening trough body (2), a plurality of discharge troughs (4) being provided at the discharge end of the screening trough body (2), the plurality of discharge troughs (4) corresponding one-to-one to the plurality of screening grids (3) and being respectively connected to the discharge ends of the plurality of screening grids (3).

3. The device for screening sorghum seeds according to claim 2, characterized in that: The swing assembly comprises a first bearing (5), a second bearing (6), and a swing bar (7); the inner ring of the first bearing (5) is locked and connected to the support frame (1) through studs and nuts; the inner ring of the second bearing (6) is connected to the outer walls of both sides of the screening trough (2) through studs and nuts; the outer ring of the first bearing (5) is connected to one end of the swing bar (7); and the outer ring of the second bearing (6) is connected to the other end of the swing bar (7).

4. The device for screening sorghum seeds according to claim 1, characterized in that: The driving mechanism comprises a driving motor (8), which is locked and connected to the support frame (1) via a stud and a nut. A driving shaft (9) is connected inside the driving motor (8), and an output end of the driving shaft (9) is connected to one end of the eccentric structure.

5. The device for screening sorghum seeds according to claim 1, characterized in that: The eccentric structure comprises a support disc (10) and a support bar (11). The support disc (10) is a cylinder and its axis is connected to the output end of the driving mechanism. One end of the support bar (11) is rotatably connected to the edge of the support disc (10) through a stud and a nut. The other end of the support bar (11) is rotatably connected to one end of the screening structure through a stud and a nut.

6. The device for screening sorghum seeds according to claim 1, characterized in that: The air separation mechanism comprises an air separation box (12), which is connected to a support frame (1) through studs and nuts. An air separation component is provided inside the air separation box (12), and both ends of the air separation component are rotatably connected to the air separation box (12). A feed port (13) is provided at the top of the air separation box (12), and a discharge port (14) is provided at the bottom of the air separation box (12). The discharge port (14) is located above the feed end of the screening structure. A slag discharge port (15) is provided on one side of the air separation box (12), and a slag discharge trough (16) is connected to the slag discharge port (15). The discharge end of the slag discharge trough (16) is located outside the screening structure.

7. The device for screening sorghum seeds according to claim 6, characterized in that: The air separation component includes an air separation motor (17), which is located outside the air separation box (12) and is connected to the support frame (1) through studs and nuts. The air separation motor (17) is internally connected to an air separation shaft (18), and both ends of the air separation shaft (18) are rotatably connected to the air separation box (12) through bearings. A plurality of air separation blades (19) are provided on the outer wall of the air separation shaft (18), and the plurality of air separation blades (19) are arranged at equal intervals around the outer wall of the air separation shaft (18) and are all located inside the air separation box (12).