Rice hull grain extraction layering equipment
By introducing a blower and pulley system into the rice husk extractor, the amount of rice husk discharged is automatically adjusted, and the difference in weight is used to separate empty and full rice grains. This solves the problem of insufficient rice husk extraction precision in the existing technology and achieves a more efficient separation effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-17
- Publication Date
- 2026-03-24
AI Technical Summary
Existing rice husk grain lifters control the material feed rate by simply adjusting the angle of the guide plate, which cannot effectively prevent material from overflowing when the guide plate is full, resulting in a decrease in grain lifting accuracy.
The system employs a blower, connecting rod, and pulley system. A drive motor drives the blower blades and adjusting plate to achieve air blowing and screening of rice husks in the feed pipe and automatically adjust the amount of rice husks discharged. It separates shriveled and plump rice husks by utilizing the weight difference between them.
This improves the precision of rice husk extraction, avoids uneven rice husk distribution due to excessive feed, and ensures effective separation.
Smart Images

Figure CN224025696U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grain and oil production equipment, specifically a rice husk extraction and stratification device. Background Technology
[0002] Rice husk grain separators mainly utilize the principle of wind separation, separating the heavier rice grains, shriveled grains, and imperfect grains from the rice husks based on their different specific gravities.
[0003] According to CN212733033U, a rice husk lifting device is disclosed. Under the action of airflow, the end of the guide plate tends to tilt upward, making the guide plate more horizontal. The guide plate receives the material, preventing the material from falling too fast and prolonging the interaction time between the airflow and the material. When the amount of material fed increases, the end of the guide plate near the air duct inlet is compressed and tilts downward, changing the airflow direction that forms a ventilation channel between adjacent guide plates. This increases the resistance of the material leaving the ventilation channel and slows down the falling speed of the material.
[0004] In the process of realizing this utility model, the inventors discovered that at least the following problems in the prior art have not been solved. In the above case, the use angle of the guide plate is simply adjusted to control the material discharge amount. However, the material discharge amount is affected by the material feed amount. When the material fills the guide plate, the material will be discharged from both sides of the guide plate. Therefore, the use angle of the guide plate is not a direct factor affecting the material discharge amount.
[0005] Therefore, we propose a rice husk extraction and stratification device that can solve the above problems. Utility Model Content
[0006] The purpose of this invention is to provide a rice husk extraction and stratification device that solves the problems mentioned in the background art.
[0007] To achieve the above objectives, this utility model provides the following technical solution: a rice husk grain separation and stratification device, comprising a shell, a feeding funnel fixedly installed on one side of the upper surface of the shell, a feeding pipe fixedly installed at the bottom end of the feeding funnel, and further comprising a blower, a first connecting rod, a second connecting rod, and a transmission belt. The blower is installed through and on the upper end of the inner wall of one side of the shell. A bracket is welded to one side of the shell, and a drive motor is fixedly connected to one side of the bracket. The shaft end of the drive motor is fixedly connected to one end of the first connecting rod. A blower blade is fixedly connected to one end of the first connecting rod located inside the blower. The first connecting rod, located inside the bracket, passes through the middle of a small pulley and is fixedly connected to the small pulley. An adjusting plate is fixedly connected to one end of the second connecting rod located inside the feeding pipe. A large pulley is fixedly installed at the other end of the second connecting rod, and the small pulley is connected to the large pulley via the transmission belt.
[0008] As an optional solution to the technical solution of this application, the large pulley and the small pulley are vertically aligned and their sizes are matched.
[0009] As an optional solution to the technical solution of this application, the second connecting rod is rotatably connected to the inner walls on both sides of the feed pipe through bearings, and the number of the adjusting plates is four sets. The four sets of adjusting plates are evenly installed on the outside of the second connecting rod, and the size of the feed pipe matches that of the adjusting plates.
[0010] As an optional solution to the technical solution of this application, the bottom end of the feed pipe penetrates the inner wall of the top end of the shell, the feed funnel is connected to the shell through the feed pipe, a partition is fixedly installed on the inner wall of the bottom end of the shell, and two sets of collection ports are opened through the inner wall of the bottom end of the shell, with the two sets of collection ports respectively placed on both sides of the partition.
[0011] As an optional solution to the technical solution of this application, an air outlet is provided through the inner wall of the housing on the side away from the blower, and a protective net is vertically fixed to the outer side of the air outlet.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: By controlling the operation of the drive motor, the first connecting rod can drive the fan blades to rotate and blow air inside the blower, thereby enabling the blowing and screening of rice husks discharged from the feed pipe. Through the combination of the small pulley, the rotating pulley, and the large pulley, the rotation of the first connecting rod can drive the rotation of the second connecting rod, thereby driving the adjusting plate to rotate inside the feed pipe. This further enables the automatic adjustment of the discharge amount of rice husks inside the feed pipe, avoiding excessive discharge of rice husks from the feed pipe, which would affect the rice husk extraction accuracy. Attached Figure Description
[0013] Other features, objects, and advantages of this invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:
[0014] Figure 1 This is the upper left view of a rice husk extraction and stratification device according to the present invention.
[0015] Figure 2 The upper right figure shows a rice husk grain separation and stratification device according to this utility model.
[0016] Figure 3 This is an internal schematic diagram of a rice husk extraction and stratification device according to the present invention.
[0017] In the diagram: 1. Shell; 11. Feed hopper; 12. Feed pipe; 13. Blower; 14. Baffle; 15. Collection port; 16. Air outlet; 17. Protective net; 2. Support; 21. Drive motor; 22. First connecting rod; 23. Small pulley; 24. Blower fan blade; 25. Transmission belt; 26. Second connecting rod; 27. Adjusting plate; 28. Large pulley. Detailed Implementation
[0018] Please see Figures 1-3 This utility model provides a technical solution: a rice husk grain separation and stratification device, including a shell 1, a feeding funnel 11 fixedly installed on one side of the upper surface of the shell 1, a feeding pipe 12 fixedly installed at the bottom end of the feeding funnel 11, the bottom end of the feeding pipe 12 penetrating the inner wall of the top of the shell 1, the feeding funnel 11 communicating with the shell 1 through the feeding pipe 12, and also including a blower 13, a first connecting rod 22, a second connecting rod 26 and a transmission belt 25, the blower 13 penetrating and installed at the upper end of the inner wall of one side of the shell 1, a bracket 2 welded to one side of the shell 1, a drive motor 21 fixedly connected to one side of the bracket 2, the shaft end of the drive motor 21 fixedly connected to one end of the first connecting rod 22, a blower blade 24 fixedly connected to one end of the first connecting rod 22 located inside the blower 13, and the first connecting rod 22 located inside the bracket 2 penetrating the middle of the small pulley 23 and fixedly connected to the small pulley 23.
[0019] In this technical solution, the rice husks in the feeding funnel 11 can be guided into the housing 1 through the feeding pipe 12 at the bottom of the feeding funnel 11. The drive motor 21 is controlled to work, and the first connecting rod 22 can drive the blower blades 24 to rotate and blow air in the blower duct 13, so as to perform blowing and screening operations on the rice husks discharged by the feeding pipe 12.
[0020] In this embodiment, the second connecting rod 26 is rotatably connected to the inner walls on both sides of the feed pipe 12 via bearings. An adjusting plate 27 is fixedly connected to one end of the second connecting rod 26 located inside the feed pipe 12. There are four sets of adjusting plates 27, which are evenly installed on the outer side of the second connecting rod 26. The feed pipe 12 and the adjusting plate 27 are matched in size. A large pulley 28 is fixedly installed at the other end of the second connecting rod 26. The large pulley 28 is vertically aligned with the small pulley 23, and the small pulley 23 is connected to the large pulley 28 via a transmission belt 25.
[0021] In this technical solution, during the rotation of the first connecting rod 22, it can drive the small pulley 23 to rotate. The small pulley 23 can drive the large pulley 28 to rotate through the transmission belt 25, which in turn can drive the second connecting rod 26 to rotate, thereby driving the adjusting plate 27 to rotate inside the feed pipe 12. This can further automatically adjust the discharge amount of rice husks inside the feed pipe 12, avoiding excessive discharge of rice husks from the feed pipe 12, which would affect the rice husk extraction accuracy.
[0022] In this embodiment, a partition 14 is fixedly installed on the inner wall of the bottom end of the housing 1, and two sets of collection ports 15 are opened through the inner wall of the bottom end of the housing 1. The two sets of collection ports 15 are respectively placed on both sides of the partition 14. An air outlet 16 is opened through the inner wall of the housing 1 on the side away from the blower 13, and a protective net 17 is vertically fixedly connected to the outer side of the air outlet 16.
[0023] In this technical solution, due to the different weights of empty grains and full grains, empty grains will drift down to the right side of the partition 14 with the airflow and be discharged through the collection port 15 on the right side of the shell 1, while full grains will fall to the left side of the partition 14 and be discharged through the collection port 15 on the left side.
[0024] When a rice husk sifting and separating device is used, the rice husks in the feeding funnel 11 are guided into the housing 1 through the feeding pipe 12 at the bottom of the feeding funnel 11. The drive motor 21 is controlled to operate, and the first connecting rod 22 drives the fan blades 24 to rotate and blow air within the blower duct 13, thereby performing a blowing and sorting operation on the rice husks discharged from the feeding pipe 12. During the rotation of the first connecting rod 22, the small pulley 23 is driven to rotate, and the small pulley 23, through the transmission belt 25, drives the large pulley 24 to rotate. The rotation of the pulley 28 further drives the second connecting rod 26 to rotate, thereby causing the adjusting plate 27 to rotate inside the feed pipe 12. This further automatically adjusts the discharge amount of rice husks inside the feed pipe 12, preventing excessive discharge of rice husks from the feed pipe 12 and affecting the rice husk extraction accuracy. Due to the different weights of shriveled and plump rice grains, shriveled rice grains will drift down to the right side of the partition 14 with the airflow and be discharged through the collection port 15 on the right side of the shell 1, while plump rice grains will fall to the left side of the partition 14 and be discharged through the collection port 15 on the left side.
Claims
1. A rice husk extraction and stratification device, comprising a shell (1), wherein a feeding funnel (11) is fixedly installed on one side of the upper surface of the shell (1), and a feeding pipe (12) is fixedly installed at the bottom end of the feeding funnel (11), characterized in that, It also includes a hair dryer (13), a first connecting rod (22), a second connecting rod (26), and a transmission belt (25). The hair dryer (13) is installed through the upper end of the inner wall of one side of the housing (1). A bracket (2) is welded to one side of the housing (1). A drive motor (21) is fixedly connected to one side of the bracket (2). The shaft end of the drive motor (21) is fixedly connected to one end of the first connecting rod (22). The first connecting rod (22) is located at one end inside the hair dryer (13). A fan blade (24) is fixedly connected. One end of the first connecting rod (22) is placed inside the bracket (2) and passes through the middle of the small pulley (23) and is fixedly connected to the small pulley (23). One end of the second connecting rod (26) is placed inside the feed pipe (12) and is fixedly connected to an adjusting plate (27). The other end of the second connecting rod (26) is fixedly installed with a large pulley (28), and the small pulley (23) is connected to the large pulley (28) via a transmission belt (25).
2. The rice husk extraction and stratification device according to claim 1, characterized in that: The large pulley (28) and the small pulley (23) are vertically aligned and their dimensions are matched.
3. The rice husk extraction and stratification device according to claim 1, characterized in that: The second connecting rod (26) is rotatably connected to the inner walls on both sides of the feed pipe (12) via bearings. There are four sets of adjusting plates (27). The four sets of adjusting plates (27) are evenly installed on the outside of the second connecting rod (26), and the size of the feed pipe (12) matches that of the adjusting plates (27).
4. The rice husk extraction and stratification device according to claim 1, characterized in that: The bottom end of the feed pipe (12) penetrates the top inner wall of the shell (1). The feed funnel (11) is connected to the shell (1) through the feed pipe (12). A partition (14) is fixedly installed on the bottom inner wall of the shell (1). Two sets of collection ports (15) are opened through the bottom inner wall of the shell (1). The two sets of collection ports (15) are respectively placed on both sides of the partition (14).
5. The rice husk extraction and stratification device according to claim 1, characterized in that: An air outlet (16) is provided through the inner wall of the housing (1) on the side away from the blower (13), and a protective net (17) is vertically fixed to the outer side of the air outlet (16).
Citation Information
Patent Citations
Rice husk grain extractor
CN212733033U