Material overturning mechanism for rice drying machine
By combining servo motor drive and high-pressure gas, the problem of uneven material turning in rice dryers has been solved, achieving uniform turning and suspension turning of rice, improving drying efficiency and reducing energy consumption.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YUTAI SHUYU AGRICULTURAL PRODUCTS CO LTD
- Filing Date
- 2025-05-26
- Publication Date
- 2026-04-28
AI Technical Summary
The existing rice dryer's turning mechanism has problems such as uneven turning, high energy consumption, and easy damage to rice grains, resulting in low drying efficiency and easy occurrence of local overheating or undercooked rice.
The system uses a servo motor to drive the rotation of the support tube, stirring tube, and flipping plate, and utilizes high-pressure gas to form an air curtain. By using a servo motor to drive the rotation of the support tube, stirring tube, flipping plate, and stirring blade, combined with the use of high-pressure gas, the rice is evenly turned and suspended, avoiding local overheating or undercooking.
This process ensures uniform flow of rice, improves drying efficiency, avoids localized overheating or undercooking, enhances drying efficiency, and reduces energy consumption.
Smart Images

Figure CN224175533U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of grain drying equipment, and in particular to a turning mechanism for a rice dryer. Background Technology
[0002] Existing rice dryer turning mechanisms generally suffer from problems such as uneven turning, high energy consumption, and easy damage to rice grains. Traditional turning devices mostly use a single rotating paddle structure, which leads to uneven heating of rice during the drying process, low drying efficiency, and easy occurrence of local overheating or undercooking. Therefore, a turning mechanism for rice dryers is provided. Utility Model Content
[0003] To address the shortcomings of existing technologies, this utility model provides a turning mechanism for a rice dryer. A servo motor drives the support tube, stirring tube, turning plate, and stirring blades to rotate. Two stirring blades simultaneously agitate the rice, achieving convection. The turning plate continuously turns the rice, while an external high-pressure air pump valve is opened, allowing high-pressure gas to enter the support tube, stirring tube, and turning plate, and then exit through the exhaust port to form an air curtain. The airflow impact force suspends and turns the rice, ensuring uniform flow and significantly improving the drying effect. This avoids localized overheating or undercooking, overcoming the deficiencies of existing technologies.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] A material-turning mechanism for a rice dryer includes a housing. A support tube is rotatably mounted on the inner wall of the housing via a bearing. A servo motor is mounted on the outer wall of one end of the support tube, and the output end of the servo motor is connected to one end of the support tube. The other end of the support tube extends to the outside of the housing and is equipped with a rotary joint. One end of the rotary joint is connected to a high-pressure air pipe. Three stirring tubes are evenly spaced on the outer wall of the support tube. Each of the three stirring tubes has a turning plate at one end. The turning plate has a hollow structure, and its interior is connected to the interior of the stirring tubes and the interior of the support tube. An exhaust hole is provided at one end of the turning plate. A dust collection assembly is connected to the top of the housing.
[0006] As a further improvement of this utility model: the end of the flipping plate facing the inner wall of the box is chamfered, and exhaust holes are provided at equal intervals on both sides of the chamfer.
[0007] As a further improvement of this utility model, one end of the high-pressure air pipe is connected to a high-pressure air pump.
[0008] As a further improvement of this utility model: both ends of the outer wall of the support tube are fixed with stirring blades, and the two stirring blades are arranged in opposite directions.
[0009] As a further improvement of this utility model: a discharge port is provided on one side of the bottom of the box, and a discharge door is provided at the discharge port; an electric heating plate is provided on the other side of the bottom of the box; and supports are provided on both sides of the bottom of the box.
[0010] As a further embodiment of this utility model: a humidity sensor is installed on the top of the inner wall of the box, and a control module is installed on one side of the outer wall of the box. The control module integrates control buttons, a temperature control knob and a display screen. The humidity sensor, the electric heating plate and the servo motor are all electrically connected to the control module.
[0011] As a further embodiment of this utility model: the dust collection assembly includes a collection cover set at the top of the box, the top of the collection cover is connected to a dust collection pipe, one end of the dust collection pipe is connected to a vacuum cleaner, a feeding port is provided on one side of the collection cover, and a top cover is provided at the top of the feeding port.
[0012] The beneficial effects of this utility model are as follows:
[0013] The servo motor drives the support tube, stirring tube, tilting plate, and stirring blades to rotate. The two stirring blades simultaneously agitate the rice to achieve convection, and the tilting plate continuously turns the rice. At the same time, the external high-pressure air pump valve is opened, allowing high-pressure gas to enter the support tube, stirring tube, and tilting plate, and then be discharged from the exhaust port to form an air curtain. The airflow impact force makes the rice suspend and turn, ensuring the uniformity of rice flow, greatly improving the drying effect, and avoiding local overheating or undercooking. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a turning mechanism for a rice dryer proposed in this utility model.
[0015] Figure 2 This is a partial structural diagram of a material turning mechanism for a rice dryer proposed in this utility model.
[0016] Figure 3 This is a partial structural diagram of a material turning mechanism for a rice dryer proposed in this utility model.
[0017] In the diagram: 1. Box body; 2. High-pressure air pipe; 3. Collection hood; 4. Dust collection pipe; 5. Feed port; 6. Servo motor; 7. Support; 8. Electric heating plate; 9. Stirring pipe; 10. Tilting plate; 11. Rotary joint; 12. Discharge port; 13. Discharge gate; 14. Stirring blade; 15. Humidity sensor; 16. Control module; 17. Support pipe; 18. Exhaust port. Detailed Implementation
[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0019] Example 1, referring to Figure 1-3 A material turning mechanism for a rice dryer includes a housing 1. A support tube 17 is rotatably mounted on the middle of the inner wall of the housing 1 via a bearing. A servo motor 6 is mounted on the outer wall of one end of the support tube 17. The output end of the servo motor 6 is connected to one end of the support tube 17. The other end of the support tube 17 extends to the outside of the housing 1 and is equipped with a rotary joint 11. One end of the rotary joint 11 is connected to a high-pressure air pipe 2. One end of the high-pressure air pipe 2 is connected to a high-pressure air pump. Three stirring tubes 9 are evenly spaced on the outer wall of the support tube 17. A turning plate 10 is provided at one end of each of the three stirring tubes 9. The turning plate 10 has a hollow structure, and its interior is connected to the interior of the stirring tubes 9 and the interior of the support tube 17. An exhaust hole 18 is provided at one end of the turning plate 10. A dust collection assembly is connected to the top of the housing 1.
[0020] The end of the flip plate 10 facing the inner wall of the box 1 is chamfered, and exhaust holes 18 are provided at equal intervals on both sides of the chamfer of the flip plate 10.
[0021] Both ends of the outer wall of the support tube 17 are fixed with stirring blades 14, and the two stirring blades 14 are arranged in opposite directions.
[0022] A discharge port 12 is provided on one side of the bottom of the box 1, and a discharge gate 13 is provided at the discharge port 12. An electric heating plate 8 is provided on the other side of the bottom of the box 1, and supports 7 are provided on both sides of the bottom of the box 1.
[0023] A humidity sensor 15 is installed on the top of the inner wall of the enclosure 1, and a control module 16 is installed on one side of the outer wall of the enclosure 1. The control module 16 integrates control buttons, a temperature control knob and a display screen. The humidity sensor 15, the electric heating plate 8 and the servo motor 6 are all electrically connected to the control module 16.
[0024] The electric heating plate 8 is turned on to heat the rice in the chamber 1. The humidity sensor 15 detects the humidity of the rice in the chamber 1 in real time and transmits the humidity information to the display screen of the control module 16. The servo motor 6 drives the support tube 17, stirring tube 9, turning plate 10 and stirring blade 14 to rotate. The two stirring blades 14 simultaneously stir the rice to achieve convection. The turning plate 10 continuously turns the rice. At the same time, the external high-pressure air pump valve is turned on, so that high-pressure gas enters the support tube 17, stirring tube 9 and turning plate 10 and is discharged from the exhaust port 18 to form an air curtain. The impact force of the airflow makes the rice suspend and turn, ensuring the uniformity of the rice flow and greatly improving the drying effect.
[0025] Example 2 is an optimization based on Example 1, specifically:
[0026] The dust collection assembly includes a collection hood 3 located at the top of the housing 1. A dust collection pipe 4 is connected to the top of the collection hood 3. One end of the dust collection pipe 4 is connected to a vacuum cleaner. A feeding port 5 is provided on one side of the collection hood 3. A top cover is provided at the top of the feeding port 5.
[0027] Since turning the rice will generate dust, the dust can be absorbed along the collection hood 3 and dust collection pipe 4 by turning on the external vacuum cleaner, thus preventing the dust from overflowing and polluting the environment.
[0028] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.
Claims
1. A turning mechanism for a rice dryer, comprising a housing (1), characterized in that, A support tube (17) is rotatably mounted on the inner wall of the box (1) via a bearing. A servo motor (6) is mounted on the outer wall of one end of the support tube (17). The output end of the servo motor (6) is connected to one end of the support tube (17). The other end of the support tube (17) extends to the outside of the box (1) and is equipped with a rotary joint (11). One end of the rotary joint (11) is connected to a high-pressure air pipe (2). Three stirring tubes (9) are equidistantly arranged on the outer wall of the support tube (17). One end of each of the three stirring tubes (9) is equipped with a flipping plate (10). The flipping plate (10) is hollow and its interior is connected to the interior of the stirring tube (9) and the interior of the support tube (17). One end of the flipping plate (10) is equipped with an exhaust hole (18). A dust collection assembly is connected to the top of the box (1).
2. The rice drying machine turning mechanism according to claim 1, characterized in that, The end of the flip plate (10) facing the inner wall of the box (1) is chamfered, and exhaust holes (18) are provided at equal intervals on both sides of the chamfer of the flip plate (10).
3. The rice drying machine turning mechanism according to claim 1, characterized in that, One end of the high-pressure air pipe (2) is connected to a high-pressure air pump.
4. The rice drying machine turning mechanism according to claim 1, characterized in that, Both ends of the outer wall of the support tube (17) are fixed with stirring blades (14), and the two stirring blades (14) are arranged in opposite directions.
5. The rice drying machine turning mechanism according to claim 1, characterized in that, A discharge port (12) is provided on one side of the bottom of the box (1), and a discharge gate (13) is provided at the discharge port (12). An electric heating plate (8) is provided on the other side of the bottom of the box (1), and a support (7) is provided on both sides of the bottom of the box (1).
6. The rice drying machine turning mechanism according to claim 5, characterized in that, A humidity sensor (15) is installed on the top of the inner wall of the box (1), and a control module (16) is installed on one side of the outer wall of the box (1). The control module (16) integrates control buttons, temperature control knob and display screen. The humidity sensor (15), electric heating plate (8) and servo motor (6) are all electrically connected to the control module (16).
7. The rice drying machine turning mechanism according to claim 1, characterized in that, The dust collection assembly includes a collection hood (3) set at the top of the housing (1), a dust collection pipe (4) connected to the top of the collection hood (3), one end of the dust collection pipe (4) being connected to a vacuum cleaner, and a feeding port (5) set on one side of the collection hood (3), with a top cover set at the top of the feeding port (5).