Screening machine for agricultural waste
By incorporating a self-cleaning screening machine with a clogging cone and spiral guide plate design, the problem of soil blockage during agricultural straw fermentation is solved, improving screening efficiency and reducing energy consumption.
Patent Information
- Application Number
- CN202520121981.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-01-20
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2035-01-20
AI Technical Summary
In existing technologies, it is difficult to remove the soil from the roots of agricultural straw during fermentation, which leads to clogging of the screening plate, poor vibration screening effect, and high energy consumption.
A self-cleaning screening machine was designed, which uses a deblocking cone in conjunction with a transmission roller. The deblocking cone is inserted into the holes of the screening cylinder to clear blockages, and the soil is separated by tumbling the soil through a spiral guide plate.
It achieves continuous clearing of blockages, improves screening efficiency, reduces energy consumption, and ensures screening results.
Smart Images
Figure CN223775335U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of agricultural planting technology, specifically a screening machine for agricultural waste. Background Technology
[0002] Agricultural waste refers to all waste generated from agricultural production, agricultural product processing, livestock and poultry farming, and rural residents' daily lives. Agricultural straw, in particular, often has a lot of soil attached to its roots. During fermentation, this soil must be removed to prevent it from affecting the fermentation process. However, soil has a certain degree of stickiness, which can easily clog the screening plates during continuous screening. Furthermore, the vibration effect of screening elastic materials like straw and soil is significantly reduced due to the increased vibration intensity, leading to increased vibration energy consumption. Therefore, it is necessary to develop a new screening mechanism for agricultural waste to address the shortcomings of existing technologies. Utility Model Content
[0003] To address the problems mentioned in the background section, this utility model provides a screening machine for agricultural waste, which has the advantage of self-cleaning the screening plate.
[0004] To achieve the above objectives, this utility model provides the following technical solution: a screening machine for agricultural waste, comprising a screening cylinder, with a support frame at each end of the screening cylinder, a material conveying assembly sleeved inside the screening cylinder, the material conveying assembly being fixedly sleeved inside the support frame, two left and right positioning bearings fixedly sleeved inside the screening cylinder, the screening cylinder being rotatably sleeved to the outside of the material conveying assembly via the positioning bearings, a transmission roller provided at the top of the screening cylinder, a plurality of unblocking cones integrally formed on the outer surface of the transmission roller, the end of the unblocking cone away from the transmission roller being conical, the bottom of the unblocking cone being inserted into a hole at the top of the screening cylinder, transmission assemblies connected to both ends of the transmission roller, a drive motor fixedly installed on one of the support frames away from the screening cylinder, the output shaft of the drive motor being fixedly connected to the transmission assembly, the transmission roller being drivenly connected to the screening cylinder via the transmission assembly, a discharge port provided on one side of the screening cylinder, the distance between the discharge port and the axis of the screening cylinder being less than the radius of the screening cylinder.
[0005] Preferably, the unblocking cone is made of rubber, and the outer diameter of the end of the unblocking cone away from the drive roller is smaller than the inner diameter of the holes on the outer surface of the screening cylinder, while the outer diameter of the end of the unblocking cone near the drive roller is larger than the inner diameter of the holes on the outer surface of the screening cylinder.
[0006] Preferably, the transmission assembly includes a transmission positioning shaft that is rotatably sleeved inside the support frame via a bearing. A first gear located at one end of the transmission roller is fixedly sleeved on the outer surface of one of the transmission positioning shafts. A second gear is meshed with the bottom of the first gear. The second gear is fixedly sleeved on the outer surface of the screening cylinder. The gear ratio of the first gear and the second gear is the same as the radius ratio of the transmission roller and the screening cylinder.
[0007] Preferably, the material conveying assembly includes a positioning tube fixedly sleeved inside the support frame. Both ends of the positioning tube penetrate the screening cylinder and extend to the opposite sides of the left and right support frames. The end of the positioning tube away from the discharge port is fixedly connected to a feeding hopper. The inside of the positioning tube is fixedly sleeved with two sealing plugs.
[0008] Preferably, the positioning tube has a material leakage trough at one end inside the screening cylinder near the feeding hopper, and a guide hopper is fixedly connected to the top of the positioning tube at the other end inside the screening cylinder away from the feeding hopper. The top of the guide hopper is connected to the bottom of the receiving trough, and the two sealing plugs are located between the material leakage trough and the guide hopper.
[0009] Preferably, a receiving box is provided at the bottom of the screening cylinder, the receiving box is fixedly connected to the bottom of two support frames, and a plurality of evenly distributed spiral guide plates are fixedly connected inside the screening cylinder, with the two ends of the spiral guide plates extending to the left and right sides of the inner cavity of the screening cylinder, respectively.
[0010] Preferably, the top of the inner cavity of the screening cylinder is provided with a receiving groove located directly below the drive roller. The receiving groove is inclined, and the horizontal plane of the end of the receiving groove near the feeding hopper is higher than the horizontal plane of the other end. The bottom of the receiving groove is fixedly connected with two positioning frames, which are fixedly sleeved on the outer surface of the positioning tube.
[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0012] 1. Due to the design of the unblocking cone, the unblocking cone can move synchronously with the transmission roller and the screening cylinder under the cooperation of the transmission roller and the transmission assembly. This allows the unblocking cone to be continuously and stably inserted into the hole at the top of the outer surface of the screening cylinder, thereby achieving the effect of continuously clearing blockages.
[0013] 2. Due to the setting of the spiral guide plate, the present invention can drive the screening rod to move with the cooperation of the screening cylinder, thereby achieving the purpose of crushing the soil by slamming under the action of gravity. At the same time, the completed screening rod can gather on the right side of the screening cylinder and eventually flow out by itself. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the structure of this utility model;
[0015] Figure 2 This is a front view of the present invention;
[0016] Figure 3 This is a sectional view of the front of the present invention;
[0017] Figure 4 This is a sectional view of the side of this utility model.
[0018] In the diagram: 1. Screening cylinder; 2. Support frame; 3. Conveying assembly; 31. Positioning tube; 32. Feeding hopper; 33. Discharge trough; 34. Guide hopper; 35. Sealing plug; 4. Drive roller; 5. Unblocking cone; 6. Transmission assembly; 61. Transmission positioning shaft; 62. First gear; 63. Second gear; 7. Drive motor; 8. Receiving box; 9. Spiral guide plate; 10. Receiving trough; 11. Positioning bearing; 12. Positioning frame. Detailed Implementation
[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0020] like Figures 1 to 4 As shown, this utility model provides a screening machine for agricultural waste, including a screening cylinder 1, with a support frame 2 at each end of the screening cylinder 1. A material conveying assembly 3 is sleeved inside the screening cylinder 1 and fixedly sleeved inside the support frame 2. Two positioning bearings 11 are fixedly sleeved inside the screening cylinder 1, and the screening cylinder 1 is rotatably sleeved to the outside of the material conveying assembly 3 through the positioning bearings 11. A drive roller 4 is provided at the top of the screening cylinder 1. Several unblocking cones 5 are integrally formed on the outer surface of the drive roller 4. The end of the unblocking cone 5 away from the drive roller 4 is conical, and the bottom of the unblocking cone 5 is inserted into the hole at the top of the screening cylinder 1. The two ends are connected to the transmission components 6. One of the support frames 2 is fixedly installed on the side away from the screening cylinder 1. The output shaft of the drive motor 7 is fixedly connected to the transmission components 6. The transmission roller 4 is connected to the screening cylinder 1 through the transmission components 6. A discharge port is provided on one side of the screening cylinder 1. The distance between the discharge port and the axis of the screening cylinder 1 is less than the radius of the screening cylinder 1. Due to the setting of the unblocking cone 5, with the cooperation of the transmission roller 4 and the transmission components 6, the unblocking cone 5 can follow the transmission roller 4 and move synchronously with the screening cylinder 1, so that the unblocking cone 5 can be continuously and stably inserted into the hole at the top of the outer surface of the screening cylinder 1, thereby achieving the effect of continuously clearing blockages.
[0021] like Figure 2As shown, the unblocking cone 5 is made of rubber. The outer diameter of the unblocking cone 5 at the end away from the drive roller 4 is smaller than the inner diameter of the holes on the outer surface of the screening cylinder 1, while the outer diameter of the unblocking cone 5 at the end closer to the drive roller 4 is larger than the inner diameter of the holes on the outer surface of the screening cylinder 1.
[0022] like Figure 3 and Figure 4 As shown, the transmission assembly 6 includes a transmission positioning shaft 61 that is rotatably sleeved inside the support frame 2 via a bearing. A first gear 62 located at one end of the transmission roller 4 is fixedly sleeved on the outer surface of the transmission positioning shaft 61. A second gear 63 is meshed with the bottom of the first gear 62. The second gear 63 is fixedly sleeved on the outer surface of the screening cylinder 1. The gear ratio of the first gear 62 and the second gear 63 is the same as the radius ratio of the transmission roller 4 and the screening cylinder 1. Due to the arrangement of the first gear 62 and the second gear 63, the drive motor 7 can simultaneously drive the screening cylinder 1 and the transmission roller 4 to rotate under the cooperation of the transmission positioning shaft 61. It can also ensure that the linear velocity of the screening cylinder 1 and the transmission roller 4 remains constant, thereby ensuring that the contact surfaces of the transmission roller 4 and the screening cylinder 1 do not slip relative to each other. This ensures that the unblocking cone 5 can be stably inserted into the hole at the top of the outer surface of the screening cylinder 1.
[0023] like Figure 3 As shown, the material conveying assembly 3 includes a positioning tube 31 fixedly sleeved inside the support frame 2. Both ends of the positioning tube 31 penetrate the screening cylinder 1 and extend to the opposite sides of the left and right support frames 2. The end of the positioning tube 31 away from the discharge port is fixedly connected to the feeding hopper 32. The inside of the positioning tube 31 is fixedly sleeved with two sealing plugs 35. Due to the setting of the material leakage trough 33, it is ensured that the material fed into the feeding hopper 32 can continuously fall into the screening cylinder 1, and with the cooperation of the sealing plugs 35, it is ensured that it will not flow along the positioning tube 31 to the other end of the inner cavity of the screening cylinder 1, thereby ensuring that the connecting rod can be fully screened and the soil can be fully thrashed, so that the soil can be completely screened out by the screening cylinder 1.
[0024] like Figure 3 As shown, the positioning tube 31 is located inside the screening cylinder 1, with a material leakage trough 33 at one end near the feeding hopper 32. The top of the positioning tube 31 located inside the screening cylinder 1, away from the feeding hopper 32, is fixedly connected to a guide hopper 34. The top of the guide hopper 34 is connected to the bottom of the receiving trough 10. Two sealing plugs 35 are located between the material leakage trough 33 and the guide hopper 34. Due to the setting of the guide hopper 34, with the cooperation of the sealing plugs 35, the soil sliding down in the receiving trough 10 can fall into the positioning tube 31 through the guide hopper 34 and finally be discharged by the positioning tube 31.
[0025] like Figure 3 and Figure 4As shown, a receiving box 8 is provided at the bottom of the screening cylinder 1. The receiving box 8 is fixedly connected to the bottom of the two support frames 2. Several evenly distributed spiral guide plates 9 are fixedly connected inside the screening cylinder 1. The two ends of the spiral guide plates 9 extend to the left and right sides of the inner cavity of the screening cylinder 1, respectively. Due to the setting of the spiral guide plates 9, with the cooperation of the screening cylinder 1, they can drive the screening rod to move, thereby achieving the purpose of crushing the soil by slamming under the action of gravity. At the same time, the completed screening rod can gather on the right side of the screening cylinder 1 and eventually flow out by itself.
[0026] like Figure 3 and Figure 4 As shown, a receiving trough 10 is provided at the top of the inner cavity of the screening cylinder 1, located directly below the transmission roller 4. The receiving trough 10 is inclined, and the horizontal plane of the end of the receiving trough 10 near the feeding hopper 32 is higher than the horizontal plane of the other end. Two positioning frames 12 are fixedly connected to the bottom of the receiving trough 10, and the positioning frames 12 are fixedly sleeved on the outer surface of the positioning tube 31. Due to the setting of the receiving trough 10, it can receive the soil falling into the hole of the screening cylinder 1 through the unblocking cone 5, and under the action of gravity, the soil slides down the inside of the receiving trough 10 to the guide hopper 34.
[0027] Working principle and usage process of this utility model:
[0028] When the drive motor 7 is turned on and the material to be screened is put into the hopper 32, it will fall into the screening cylinder 1 through the discharge trough 33 under the action of gravity. The operation of the drive motor 7 will drive the transmission roller 4 to rotate through the transmission positioning shaft 61. The rotation of the transmission roller 4 will drive the unblocking cone 5 on its surface to move synchronously. At the same time, the rotation of the transmission positioning shaft 61 will also drive the screening cylinder 1 to rotate through the first gear 62 and the second gear 63, and make the linear speed of the screening cylinder 1 and the transmission roller 4 keep the same, so as to ensure that the unblocking cone 5 on the surface of the transmission roller 4 can be stably inserted into the hole at the top of the outer surface of the screening cylinder 1, thereby clearing the blockage in the hole. With the cooperation of the screening cylinder 1 and the spiral guide plate 9, the material to be screened can be agitated and moved laterally. At the same time, it will rotate around the axis of the screening cylinder 1 with the spiral guide plate 9. Finally, under the action of gravity, it will fall back to the bottom of the inner cavity of the screening cylinder 1, realizing continuous movement and impact to separate the soil on the surface of the connecting rod.
[0029] Small soil particles fall into the receiving box 8 through the holes on the surface of the screening cylinder 1. Large soil particles are reduced in size after continuous tumbling and eventually fall into the receiving box 8. Soil clogging the holes in the receiving box 8 rotates with the screening cylinder 1 to the top of the receiving trough 10. Under the pushing action of the unblocking cone 5, it leaves the hole and falls into the receiving trough 10. Under the action of gravity, it slides down the receiving trough 10 through the guide hopper 34 into the positioning pipe 31 and is finally discharged from the positioning pipe 31.
[0030] The material collected after screening is gathered to the right side of the inner cavity of the screening cylinder 1 under the action of the spiral guide plate 9. After gathering to the moving height, it flows out from the discharge port on the right side of the screening cylinder 1.
[0031] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A screening machine for agricultural waste, comprising a screening cylinder (1), characterized in that: The screening cylinder (1) has a support frame (2) at both ends. A material conveying assembly (3) is sleeved inside the screening cylinder (1). The material conveying assembly (3) is fixedly sleeved inside the support frame (2). Two positioning bearings (11) are fixedly sleeved inside the screening cylinder (1). The screening cylinder (1) is rotatably sleeved to the outside of the material conveying assembly (3) through the positioning bearings (11). A transmission roller (4) is provided at the top of the screening cylinder (1). Several unblocking cones (5) are integrally formed on the outer surface of the transmission roller (4). The unblocking cones (5) are far away from the transmission roller (3). 4) One end is conical, and the bottom of the unblocking cone (5) is inserted into the hole at the top of the screening cylinder (1). The two ends of the transmission roller (4) are connected to the transmission assembly (6). One of the support frames (2) is fixedly installed with a drive motor (7) on the side away from the screening cylinder (1). The output shaft of the drive motor (7) is fixedly connected to the transmission assembly (6). The transmission roller (4) is connected to the screening cylinder (1) through the transmission assembly (6). A discharge port is provided on one side of the screening cylinder (1). The distance between the discharge port and the axis of the screening cylinder (1) is less than the radius of the screening cylinder (1).
2. The screening machine for agricultural waste according to claim 1, characterized in that: The unblocking cone (5) is made of rubber. The outer diameter of the unblocking cone (5) at the end away from the drive roller (4) is smaller than the inner diameter of the holes on the outer surface of the screening cylinder (1). The outer diameter of the unblocking cone (5) at the end close to the drive roller (4) is larger than the inner diameter of the holes on the outer surface of the screening cylinder (1).
3. A screening machine for agricultural waste according to claim 1, characterized in that: The transmission assembly (6) includes a transmission positioning shaft (61) that is rotatably sleeved inside the support frame (2) via a bearing. A first gear (62) located at one end of the transmission roller (4) is fixedly sleeved on the outer surface of the transmission positioning shaft (61). A second gear (63) is meshed with the bottom of the first gear (62). The second gear (63) is fixedly sleeved on the outer surface of the screening cylinder (1). The gear ratio of the first gear (62) and the second gear (63) is the same as the radius ratio of the transmission roller (4) and the screening cylinder (1).
4. A screening machine for agricultural waste according to claim 1, characterized in that: The feeding assembly (3) includes a positioning tube (31) fixedly sleeved inside the support frame (2). Both ends of the positioning tube (31) pass through the screening cylinder (1) and extend to the opposite sides of the left and right support frames (2). The end of the positioning tube (31) away from the discharge port is fixedly connected to the feeding hopper (32). The inside of the positioning tube (31) is fixedly sleeved with two sealing plugs (35).
5. A screening machine for agricultural waste according to claim 4, characterized in that: The positioning tube (31) is located inside the screening cylinder (1) with a material leakage trough (33) at one end near the feeding hopper (32). The top of the positioning tube (31) located inside the screening cylinder (1) away from the feeding hopper (32) is fixedly connected to a guide hopper (34). The top of the guide hopper (34) is connected to the bottom of the receiving trough (10). The two sealing plugs (35) are located between the material leakage trough (33) and the guide hopper (34).
6. A screening machine for agricultural waste according to claim 1, characterized in that: The bottom of the screening cylinder (1) is provided with a receiving box (8), which is fixedly connected to the bottom of two support frames (2). The inside of the screening cylinder (1) is fixedly connected with several evenly distributed spiral guide plates (9), and the two ends of the spiral guide plates (9) extend to the left and right sides of the inner cavity of the screening cylinder (1).
7. A screening machine for agricultural waste according to claim 4, characterized in that: The top of the inner cavity of the screening cylinder (1) is provided with a receiving groove (10) located directly below the transmission roller (4). The receiving groove (10) is inclined. The horizontal plane of the end of the receiving groove (10) near the feeding hopper (32) is higher than the horizontal plane of the other end. The bottom of the receiving groove (10) is fixedly connected with two positioning frames (12) on the left and right. The positioning frames (12) are fixedly sleeved on the outer surface of the positioning tube (31).