A corn drying device
By using an adjustable swing mechanism driven by a servo motor and a hollowed-out ventilation hole design, combined with an adjustable cover, the problems of low static drying efficiency, frequent manual turning, low space utilization, and weather dependence of traditional corn drying devices are solved, achieving efficient and uniform drying and adaptable drying of various grains.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TONGHUA ACAD OF AGRI SCI
- Filing Date
- 2025-07-04
- Publication Date
- 2026-07-03
Smart Images

Figure CN224455215U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of drying devices, specifically a corn drying device. Background Technology
[0002] As a crucial global food and feed crop, the quality of corn drying directly impacts storage safety and economic benefits. Traditional drying methods, often using ground-spread drying or simple frame drying, suffer from the following significant drawbacks: Poor bottom ventilation: Corn kernels are in direct contact with the ground, limiting air circulation and resulting in a much slower drying rate at the bottom compared to the top, necessitating frequent manual turning (labor-intensive); Low space utilization: Flat drying occupies significant land resources, especially in large-scale planting scenarios where high efficiency is difficult to achieve; Weather-dependent: The drying process relies on natural sunlight and wind, requiring emergency relocation during rainy weather, easily leading to mold and loss; Uneven drying: Static drying results in uneven heating of corn kernels, with some areas failing to dry sufficiently due to obstructions (such as buildings and trees).
[0003] Taking the patent with publication number CN220191528U as an example, a corn drying device is disclosed. This utility model relates to the field of drying equipment technology, including a mounting plate and a support plate. A connecting ring is slidably connected to the surface of the mounting plate, and slots are opened on the side of the connecting ring. The slots are distributed on both sides of the connecting ring, and a limiting plate is inserted into the inner wall of the slot. A limiting groove is opened on the side of the mounting plate. A hinge is fixedly connected to the front of the connecting ring, and a frame is hinged to the front of the connecting ring through the hinge. A mesh plate is fixedly connected to the inner wall of the frame, and a connecting plate is hinged to the side of the mounting plate. However, this device still has the following technical defects: low static drying efficiency: no dynamic turning or swinging mechanism is introduced, and the corn kernels are always in a static state during the drying process, resulting in uneven heating and ventilation dead corners. For example, the bottom corn kernels are limited in heat dissipation due to contact with the mesh plate, and the drying speed is significantly lower than that of the upper layer; reliance on manual intervention: the corn kernels need to be manually turned regularly to promote uniform drying, which is labor-intensive and inefficient. Studies have shown that the traditional method of drying corn requires manual turning every 2 hours; otherwise, the moisture content of the bottom layer of corn will be more than 15% higher than that of the top layer.
[0004] Although traditional drying devices have been improved in structural design, static drying mode and single ventilation method can hardly meet the needs of modern agriculture for high efficiency, uniformity and environmental protection. Therefore, it is necessary to design a corn drying device that is practical and efficient and uniform in drying. Utility Model Content
[0005] The purpose of this invention is to provide a corn drying device to solve the problems mentioned in the background art.
[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution: a corn drying device, comprising:
[0007] The fixed frame includes a fixed base and a shaft fixing plate. The shaft fixing plate is symmetrically fixed to the upper end of the fixed base by bolts, and a drying area is formed between the shaft fixing plates.
[0008] The drying box is hollowed out overall, with ventilation holes evenly distributed on the outer wall, arranged in a linear array along the height of the drying area. A central shaft seat is provided at the bottom, and a central movable shaft is built in. The two ends of the central movable shaft are movably installed between the shaft fixing plates.
[0009] An adjustable swing mechanism is provided, corresponding to each of the drying boxes, including:
[0010] The movable connecting rod is movably mounted on the side wall of the drying box via a guide limiting component;
[0011] A disc drive component is fixedly mounted on the side wall of the shaft fixing plate;
[0012] The movable sleeve rod is movably disposed at the edge of the side wall of the disc drive component via the shaft adjustment component, and is movably sleeved on the corresponding movable connecting rod;
[0013] An adjustable cover is detachably installed on the top of the drying box.
[0014] According to the above technical solution, the disk drive component includes:
[0015] The side wing connecting frame is fixedly installed on the side wall of the shaft fixing plate;
[0016] A servo motor is fixedly installed on the side wall of the side wing connecting frame, with its output end facing the drying box;
[0017] A circumferential rotating disk is fixedly installed at the output end of the servo motor and is coaxially arranged with the output end of the servo motor.
[0018] According to the above technical solution, the shaft adjustment component includes:
[0019] A shaft adjusting block is movably installed in an adjusting groove on the side wall of the circumferential rotating disk. The shaft adjusting block is flush with the outer wall surface of the circumferential rotating disk, and one end is fixedly connected to the movable sleeve rod.
[0020] A threaded adjusting rod is movably installed in the adjusting groove, threadedly connected to the shaft adjusting block, and one end penetrates the outer wall of the circumferential rotating disk.
[0021] The adjustment knob, which is a regular polygon, is fixedly mounted on the exposed end of the threaded adjustment rod.
[0022] According to the above technical solution, the fixing frame further includes:
[0023] Local movable rings are symmetrically arranged on the side wall of the central fixing plate, and are arranged one-to-one with the drying box;
[0024] The limiting movable column is symmetrically and fixedly installed on the side wall of the drying box, and movably installed in the arc-shaped movable groove on the side wall of the partial movable ring.
[0025] According to the above technical solution, the adjustable shielding cover includes:
[0026] The rain cover is magnetically attached to the upper part of the drying box, and has symmetrically arranged placement areas inside, with first connecting holes evenly distributed in the placement areas.
[0027] The switch control cover is symmetrically and movably installed in the placement slot. It has second connecting holes that correspond one-to-one with the first connecting hole. A protruding button is fixedly installed in the center, and the upper end of the protruding button passes through the rain cover.
[0028] According to the above technical solution, the guide limiting member includes:
[0029] A movable sidewall seat is fixedly installed on the sidewall of the drying box, and a T-shaped movable groove is provided inside.
[0030] The T-shaped movable block is movably installed in the T-shaped movable groove and fixedly connected to the movable connecting rod.
[0031] Compared with the prior art, the beneficial effects achieved by this utility model are:
[0032] (1) Efficient and uniform drying: Automated oscillation promotes uniform drying. The servo motor drives the drying box to oscillate periodically. Combined with the hollowed-out ventilation hole design, the corn is evenly exposed to the wind and the moisture evaporates. Compared with traditional static drying, the drying efficiency is improved. The rotation radius of the movable connecting rod can be adjusted by adjusting the knob to adapt to the optimal turning requirements of corn of different sizes (5mm-15mm) and achieve controllable oscillation amplitude.
[0033] (2) Precise ventilation control: The double-layer connecting holes (first connecting hole and second connecting hole) of the cover can be adjusted by the external protruding button to open and close. Full ventilation on sunny days, partial ventilation on cloudy days, and complete closure on rainy days to avoid a large amount of moisture intrusion and mold growth. The hollow ventilation holes combined with the swing mechanism reduce dead corners of corn accumulation and reduce the risk of mold growth. The magnetic attraction structure of the cover can be quickly closed to prevent pests.
[0034] (3) Strong environmental adaptability: The magnetically attached cover can be opened and closed quickly according to the weather. It protects the corn from rain and maximizes ventilation on sunny days. The arc groove of the local moving ring and the limiting moving column restricts the swing range of the drying box and prevents the device from becoming unstable in windy weather.
[0035] (4) Reduce labor costs: The servo motor drives the swing mechanism to replace the traditional manual turning, reducing labor intensity. The drying box, cover and other components are detachable, making it easy to clean, replace or repair.
[0036] (5) Adaptability expansion: The screens with different apertures can be replaced, which are suitable for various grains such as corn, wheat and rice, improving equipment utilization. A single fixed frame can be expanded to 10-20 drying boxes, which can be flexibly configured according to the site. Attached Figure Description
[0037] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention, but do not constitute a limitation thereof. In the drawings:
[0038] Figure 1 This is a first perspective view of the present invention;
[0039] Figure 2 This is a second perspective view of the present invention;
[0040] Figure 3 This is a first partial perspective view of the present invention;
[0041] Figure 4 This is a second partial perspective view of the present invention;
[0042] Figure 5 This is a third partial perspective view of the present invention;
[0043] Figure 6 This is a fourth partial perspective view of the present invention;
[0044] Figure 7 This is a utility model Figure 3 Enlarged view of point A in the middle;
[0045] Figure 8 This is a utility model Figure 4 Enlarged view of point B in the middle;
[0046] In the diagram: 1-Fixed frame, 11-Fixed seat, 12-Shaft fixing plate, 13-Partial movable ring, 131-Arc-shaped movable groove, 14-Limiting movable column, 2-Drying box, 21-Drying ventilation hole, 22-Central shaft seat, 23-Central movable shaft, 3-Adjustable swing mechanism, 31-Modible connecting rod, 32-Guide limiting component, 321-Side wall movable seat, 3211-T-shaped movable groove, 322-T-shaped movable block, 33-Disc drive Moving part, 331-side wing connecting frame, 332-servo motor, 333-circumferential rotating disk, 3331-adjusting groove, 34-movable sleeve rod, 35-axis adjusting part, 351-axis adjusting block, 352-threaded adjusting rod, 353-adjusting knob, 4-adjustable cover, 41-rain cover, 42-magnet, 43-placement area, 44-first connecting hole, 45-switch control cover, 46-second connecting hole, 47-protruding button. Detailed Implementation
[0047] 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.
[0048] Please see Figure 1-8 This utility model provides a technical solution: a corn drying device, comprising:
[0049] The fixing frame 1 includes a fixing base 11 and a shaft fixing plate 12. The shaft fixing plate 12 is symmetrically fixed to the upper end of the fixing base 11 by bolts, and a drying area is formed between the shaft fixing plates 12.
[0050] The drying box 2 is hollow in the whole, with drying and ventilation holes 21 evenly distributed on the outer wall, arranged in a linear array along the height direction of the drying area. A central shaft seat 22 is provided at the bottom, and a central movable shaft 23 is built in it. The two ends of the central movable shaft 23 are movably installed between the shaft fixing plate 12.
[0051] The adjustable swing mechanism 3 is provided in a one-to-one correspondence with the drying box 2, including:
[0052] The movable connecting rod 31 is movably mounted on the side wall of the drying box 2 via the guide limiting member 32;
[0053] The disc drive component 33 is fixedly mounted on the side wall of the shaft fixing plate 12;
[0054] The movable sleeve rod 34 is movably disposed at the edge of the side wall of the disc drive 33 via the shaft adjustment component 35, and is movably sleeved on the corresponding movable connecting rod 31;
[0055] An adjustable cover 4 is detachably installed on the upper end of the drying box 2;
[0056] Specifically, the disk drive 33 includes:
[0057] The side wing connecting frame 331 is fixedly installed on the side wall of the shaft fixing plate 12;
[0058] A servo motor 332 is fixedly installed on the side wall of the side wing connecting frame 331, with its output end facing the drying box 2;
[0059] A circumferential rotating disk 333 is fixedly installed at the output end of the servo motor 332 and is coaxially arranged with the output end of the servo motor 332;
[0060] Specifically, the shaft adjustment member 35 includes:
[0061] A shaft adjusting block 351 is movably installed in an adjusting groove 3331 on the side wall of the circumferential rotating disk 333. The shaft adjusting block 351 is flush with the outer wall surface of the circumferential rotating disk 333, and one end is fixedly connected to the movable sleeve rod 34.
[0062] A threaded adjusting rod 352 is movably installed in the adjusting groove 3331 and threadedly connected to the shaft adjusting block 351, with one end penetrating the outer wall of the circumferential rotating disk 333.
[0063] The adjustment knob 353 is arranged in a regular polygon and is fixedly installed at the exposed end of the threaded adjustment rod 352;
[0064] Specifically, the fixing frame 1 further includes:
[0065] Local movable rings 13 are symmetrically arranged on the side wall of the central fixing plate 12, and are arranged one-to-one with the drying box 2;
[0066] The limiting movable column 14 is symmetrically fixedly installed on the side wall of the drying box 2 and movably installed in the arc-shaped movable groove 131 on the side wall of the partial movable ring 13;
[0067] Specifically, the adjustable shield 4 includes:
[0068] The rain cover 41 is attached to the upper end of the drying box 2 by a magnet 42. The interior is symmetrically provided with a placement area 43, and the placement area 43 is evenly distributed with first connecting holes 44.
[0069] A switch control cover 45 is symmetrically and movably installed in the placement slot 43, and has second connecting holes 46 that correspond one-to-one with the first connecting hole 44. An outward protruding button 47 is fixedly installed in the center, and the upper end of the outward protruding button 47 penetrates the rain cover 41.
[0070] Specifically, the guide limiting member 32 includes:
[0071] A side wall movable seat 321 is fixedly installed on the side wall of the drying box 2, and a T-shaped movable groove 3211 is provided inside;
[0072] The T-shaped movable block 322 is movably installed in the T-shaped movable groove 3211 and fixedly connected to the movable connecting rod 31.
[0073] This device achieves efficient corn drying through the combined action of mechanical oscillation and controlled ventilation. The specific principle is as follows:
[0074] Mechanical oscillation promotes uniform drying
[0075] Servo motor drive: The servo motor 332 drives the circumferential rotating disk 333, which in turn drives the movable sleeve rod 34 and the movable connecting rod 31, causing the drying box 2 to swing periodically along a set trajectory. Through the periodic swinging motion, the corn kernels in the drying box 2 are constantly turned over, changing the positional relationship of the corn kernels, so that each corn kernel has the opportunity to come into contact with fresh air, thereby achieving uniform drying. Compared with the static drying method, the swinging mechanism greatly improves the drying efficiency and reduces the amount of manual turning.
[0076] Axis adjustment function: By changing the position of the axis adjustment block 351 through the threaded adjustment rod 352 and adjustment knob 353 of the axis adjustment component 35, the user can manually adjust the swing amplitude. The swing mechanism can flexibly adjust the working parameters according to changes in the external environment (such as temperature and humidity). For example, in a high humidity environment, the swing frequency can be increased to accelerate water evaporation, while in a low wind speed environment, the swing amplitude can be appropriately reduced to ensure drying quality. Different varieties of corn (such as glutinous corn, sweet corn, and ordinary corn) have different moisture content and physical properties, and require different drying intensities. By adjusting the swing amplitude of each drying box, the most suitable drying parameters can be set for each type of corn to avoid damage or insufficient drying caused by excessive turning.
[0077] T-shaped guide limit: The T-shaped movable block 322 of the guide limit member 32 slides in the T-shaped groove to ensure the stable movement trajectory of the movable connecting rod 31 and reduce mechanical friction.
[0078] Controllable ventilation and shading adjustment
[0079] Dynamic control of the rain cover: The rain cover 41, which is magnetically attached, can be quickly opened and closed according to the weather. The switch control cover 45 adjusts the alignment of the first connecting hole 44 and the second connecting hole 46 through the protruding button 47 to control the ventilation volume, such as fully open on sunny days, partially open on cloudy days, and closed on rainy days.
[0080] Hollowed-out ventilation holes: Ventilation holes 21 are evenly distributed on the outer wall of the drying box 2. Combined with the air convection generated by the swinging motion, the moisture evaporation of the corn is accelerated.
[0081] Limit and stability design
[0082] Local movable ring and limiting post: The arc groove 131 in the local movable ring 13 cooperates with the limiting movable post 14 to limit the swing range of the drying box and prevent excessive shaking from causing the corn to scatter or the structure to become unstable.
[0083] Multi-layer linear arrangement: The drying boxes are arranged in a linear array along the height of the fixed frame, maximizing the use of vertical space and improving the drying efficiency per unit area. The adjustable swing mechanism allows the drying boxes to be arranged in multiple layers along the vertical direction, making full use of space resources. This three-dimensional layout greatly increases the drying capacity per unit area, and is particularly suitable for the high-efficiency drying needs in large-scale agricultural production.
[0084] The specific workflow is as follows:
[0085] Device initialization
[0086] Install the mounting bracket: Place the mounting base 11 securely on the ground or platform, and install the central fixing plate 12 symmetrically to form a drying area.
[0087] Hanging the drying box: Insert the drying box 2 into the space between the central movable shaft 23 and the shaft fixing plate 12, ensuring that the bottom shaft seat 22 slides in contact with the shaft fixing plate.
[0088] Adjusting the swing mechanism: Adjust the position of the shaft adjustment block 351 by adjusting the knob 353 according to the expected swing amplitude, and preset the drive parameters of the servo motor 332.
[0089] Start the drying process
[0090] Fill the corn: Put the corn cobs or kernels into the drying box 2, making sure not to overload it to avoid affecting the stability of the swing.
[0091] Start the servo motor: Start the servo motor 332 to drive the circumferential rotating disk 333 to rotate, causing the drying box 2 to swing periodically, promoting even air circulation for the corn.
[0092] Adjust the sunshade cover according to the weather conditions:
[0093] Sunny day: Fully open the shade cover 41 to maximize ventilation;
[0094] On cloudy or foggy days: partially open the cover to reduce moisture intrusion;
[0095] Rainy days: Close the cover to protect the corn from rain.
[0096] Monitoring and maintenance
[0097] Observe the drying progress: By regularly checking the moisture content of the corn, a humidity sensor can be installed externally. Based on the monitoring of the humidity sensor, it can be determined whether the oscillation frequency or ventilation volume needs to be adjusted.
[0098] Swing amplitude control: In the early stage of drying (high moisture content): increase the swing amplitude (e.g., 30°~45°) to accelerate air circulation and increase the evaporation rate; In the later stage of drying (close to the target moisture content): decrease the swing amplitude (e.g., 10°~20°) to reduce the frequency of turning and prevent corn kernels from breaking or losing too much water.
[0099] Cleaning and maintenance: After drying, remove the cover 41 and drying box 2, clean up any remaining corn scraps, and lubricate moving parts such as the T-shaped moving block 322 and the partial moving ring 131 to prevent rust or jamming.
[0100] End and Storage
[0101] Power off: Stop servo motor 332 and disconnect the power.
[0102] Remove the drying box: Remove drying box 2 and transfer the dried corn to the storage container.
[0103] Storage device: The cover 41 is magnetically attached back to the drying box, and the moving parts are put back in place for easy use next time.
[0104] 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.
[0105] Finally, it should be noted that the above description is merely a preferred embodiment of this utility model and is not intended to limit the utility model. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this utility model should be included within the protection scope of this utility model.
Claims
1. A maize drying apparatus, characterised in that: include: The fixed frame (1) includes a fixed base (11) and a central fixing plate (12). The central fixing plate (12) is symmetrically fixed on the upper end of the fixed base (11) by bolts, and a drying area is formed between the central fixing plates (12). The drying box (2) is hollow in the whole, with drying and ventilation holes (21) evenly distributed on the outer wall. The holes are arranged in a linear array along the height direction of the drying area. A central shaft seat (22) is set at the bottom, and a central movable shaft (23) is built in it. The two ends of the central movable shaft (23) are movably installed between the shaft fixing plate (12). An adjustable swing mechanism (3) is provided in a one-to-one correspondence with the drying box (2), including: The movable connecting rod (31) is movably mounted on the side wall of the drying box (2) via the guide limiting member (32); The disc drive component (33) is fixedly mounted on the side wall of the shaft fixing plate (12); The movable sleeve rod (34) is movably disposed at the edge of the side wall of the disc drive (33) via the shaft adjustment component (35), and is movably sleeved on the corresponding movable connecting rod (31); An adjustable cover (4) is detachably installed on the upper end of the drying box (2).
2. A maize drying apparatus as claimed in claim 1, characterised in that: The disk drive (33) includes: Side wing connecting frame (331) is fixedly installed on the side wall of the shaft fixing plate (12); A servo motor (332) is fixedly installed on the side wall of the side wing connecting frame (331), with its output end facing the drying box (2); A circumferential rotating disk (333) is fixedly installed at the output end of the servo motor (332) and is coaxially arranged with the output end of the servo motor (332).
3. A maize drying apparatus as claimed in claim 2, wherein: The shaft adjustment component (35) includes: A shaft adjusting block (351) is movably installed in the adjusting groove (3331) on the side wall of the circumferential rotating disk (333). The shaft adjusting block (351) and the outer wall of the circumferential rotating disk (333) are flush. One end is fixedly connected to the movable sleeve rod (34). The threaded adjusting rod (352) is movably installed in the adjusting groove (3331), threadedly connected in the shaft adjusting block (351), and one end penetrates the outer wall of the circumferential rotating disk (333). The adjustment knob (353) is a regular polygon and is fixedly mounted on the exposed end of the threaded adjustment rod (352).
4. The corn drying apparatus of claim 1, wherein: The fixing frame (1) also includes: Local movable rings (13) are symmetrically arranged on the side wall of the central fixing plate (12) and are arranged one-to-one with the drying box (2); The limiting movable column (14) is symmetrically fixedly installed on the side wall of the drying box (2) and movably installed in the arc-shaped movable groove (131) on the side wall of the local movable ring (13).
5. The corn drying apparatus of claim 1, wherein: The adjustable shield (4) includes: The rain cover (41) is attached to the upper end of the drying box (2) by a magnet (42), and the inside is symmetrically provided with a placement area (43), and the placement area (43) is evenly distributed with first connecting holes (44). The switch control cover (45) is symmetrically and movably installed in the placement area (43), and is evenly distributed with second connecting holes (46) that correspond one-to-one with the first connecting hole (44). A protruding button (47) is fixedly installed in the center, and the upper end of the protruding button (47) passes through the rain cover (41).
6. The corn drying device according to claim 1, characterized in that: The guide limiting member (32) includes: The side wall movable seat (321) is fixedly installed on the side wall of the drying box (2), and a T-shaped movable groove (3211) is provided inside. The T-shaped movable block (322) is movably installed in the T-shaped movable groove (3211) and fixedly connected to the movable connecting rod (31).