Grain drying square bin's grain discharging structure

Abstract

This invention relates to the field of grain air-drying technology, specifically a grain discharge structure for a grain air-drying silo. The unloading pallet assembly includes several sets of fixed pallets relatively fixed to both sides of the inner wall of the grain discharge section frame. A flip-over pallet is detachably and rotatably connected between the fixed pallets in the same set. An adjustable latch, which can be quickly locked or released, is provided between the free end of the flip-over pallet on the side facing away from the grain discharge channel and the side wall of the grain distribution plate. Multiple horizontally arranged grain discharge plates are fixed along the length of the grain discharge section frame, positioned above and staggered with the grain distribution plates. This invention solves the problems of cumbersome pallet adjustment and disassembly, numerous parts, and inconvenient operation in emergency situations in traditional grain discharge structures. It achieves rapid locking, releasing, and flipping adjustment of the pallets, significantly improving the convenience and efficiency of operation and maintenance.

Description

Technical Field

[0001] This invention relates to the field of grain air-drying technology, specifically a grain-laying structure for a grain air-drying silo. Background Technology

[0002] In the field of post-harvest grain processing, air-drying silos are core equipment for achieving large-scale, mechanized drying and storage of grain. The grain discharge section, as a crucial link in controlling the flow rate and uniformity of the discharged grain, directly affects the equipment's operating efficiency, energy consumption, and long-term reliability through its structural design.

[0003] Currently, common grain discharge structures separate and guide grain flow by horizontally arranging multiple grain-dividing plates within the grain discharge section frame. Grain discharge channels are formed between the plates, and rotating grain discharge roller assemblies are installed within these channels to evenly discharge the grain. While this structure achieves its basic function to a certain extent, some aspects still require optimization in practical application and maintenance. For example, the movable pallet assembly used to seal the bottom of the channel and adjust the grain discharge gap is typically complex to fix and adjust, involving numerous connecting parts. The up-and-down travel is often adjusted via rotating bolts and threads, resulting in many components and making disassembly difficult in case of grain blockage or fire. Furthermore, traditional designs are relatively simple in terms of space utilization above the grain-dividing plates and initial grain distribution, potentially affecting the uniformity of grain discharge from different areas. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a grain discharge structure for a grain drying container.

[0005] The technical solution adopted by this invention to solve its technical problem is: A grain drying silo's discharge structure includes a discharge section frame. Multiple transversely arranged grain-dividing plates are fixed along the length of the inner cavity of the discharge section frame. The grain-dividing plates are inverted triangular in shape. A discharge tray assembly is provided between the bottoms of adjacent grain-dividing plates, forming a discharge channel. A discharge roller assembly is provided within the discharge channel. One end of the discharge roller assembly extends to the outside of the discharge section frame and is connected to a drive assembly. The discharge tray assembly includes several sets of fixed trays relatively fixed to both sides of the inner wall of the discharge section frame. A flip tray is detachably and rotatably connected between the fixed trays in the same set. An adjustable latch that can be quickly locked or released is provided between the free end of the flip tray on the side away from the discharge channel and one side wall of the grain-dividing plate. Multiple transversely arranged grain-discharging plates are fixed along the length of the inner cavity of the discharge section frame, positioned above and staggered with the grain-dividing plates.

[0006] The present invention, which adopts the above technical solution, has the following prominent features compared with the prior art: By adopting a discharge pallet assembly consisting of a fixed pallet, a rotatable and flip-over pallet, and an adjustable latch, the problems of cumbersome pallet adjustment and disassembly, numerous parts, and inconvenient operation in emergency situations in traditional grain discharge structures are solved. The pallet can be quickly locked, released, and flipped, significantly improving the convenience and efficiency of operation and maintenance. At the same time, by adding a discharge plate that is staggered above the grain distribution plate, the initial distribution path of the grain flow is optimized, which helps to improve the uniformity of grain discharge.

[0007] As a preferred embodiment, a further technical solution of the present invention is: Preferably, both the fixed tray and the flip tray are V-shaped. The fixed tray has a positioning seat with a shaft hole, and the flip tray is fixedly equipped with a heavy-duty spring pin. The pin portion of the heavy-duty spring pin is detachably inserted into the shaft hole, allowing the flip tray to rotate around the pin portion. This arrangement provides a concrete and reliable connection between the flip tray and the fixed tray. The V-shaped structure enhances the tray's flow guidance and load-bearing capacity, while the application of the heavy-duty spring pin allows the flip tray to rotate stably and be quickly removed and removed by hand without tools, further simplifying the assembly and disassembly process and improving maintenance convenience.

[0008] Preferably, the grain discharge roller assembly includes a bearing seat fixed on the grain discharge section frame and a rotating shaft supported on the bearing seat by the bearing. Plate-shaped grain discharge strips are evenly distributed around the circumference of the rotating shaft. Using plate-shaped grain discharge strips instead of traditional round steel can increase the contact and pushing area with the grain, and prevent the phenomenon of slippage or short flow distance caused by the contact between the round steel and the grain, which would lead to an increase in grain discharge time and energy consumption.

[0009] Preferably, one of the bottom ends of the grain distribution plate extends above the rotating shaft, and an anti-leakage eaves plate extending horizontally downward and toward the grain discharge direction is integrally formed at that end. This L-shaped anti-leakage eaves plate structure can not only strengthen the structural strength of the end of the grain distribution plate and reduce deformation, but more importantly, its horizontally extended part can cooperate with the plate-shaped grain discharge strip when the grain discharge roller stops rotating to form a certain degree of mechanical obstruction for grain that may overflow, which helps to reduce grain leakage when the equipment stops.

[0010] Preferably, tie rods are provided at intervals between adjacent grain distribution plates. The arrangement of tie rods can form a stable support connection between the grain distribution plates, effectively improving the overall structural rigidity and deformation resistance of the grain distribution plate assembly, adapting to working conditions that bear grain loads for a long time, and extending the service life of the equipment.

[0011] Preferably, the drive assembly includes a drive motor located in the middle of the outer side of the grain discharge section frame. The drive motor is connected to the grain discharge roller assemblies on the left and right sides, and synchronously drives the grain discharge roller assemblies on both sides to rotate. This centrally symmetrical power layout can shorten the length of the single-sided drive chain compared to the traditional single-sided drive, which helps to reduce the sensitivity of the transmission system to installation accuracy, reduce vibration and tension problems caused by excessive chain length, and may make the power transmission more stable.

[0012] Preferably, a protective cover is provided on the grain discharge section frame and on the outer side of the end of the grain discharge roller assembly. The protective cover has an observation hole. The protective cover can provide safety protection and dust protection for the transmission components, ensuring operational safety and equipment cleanliness. The observation hole allows for direct inspection of the operating status and wear of internal transmission components such as sprockets and chains without disassembling the protective cover, facilitating daily inspection and maintenance.

[0013] Preferably, the bottom edges of the fixed pallet and the flip-over pallet are bent downward to form a reinforced flange. This downwardly bent reinforced flange can significantly enhance the structural strength of the bottom edge of the V-shaped pallet, preventing it from deforming or cracking during long-term use or when subjected to large grain pressure, thereby improving the durability and reliability of the pallet assembly. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the main view structure of an embodiment of the present invention; Figure 2 This is a schematic diagram of the main cross-sectional structure of an embodiment of the present invention; Figure 3 This is a side view structural diagram of an embodiment of the present invention; Figure 4 This is a schematic diagram of the adjustable buckle and heavy-duty spring pin structure in an embodiment of the present invention; Figure 5 This is a schematic diagram of the structure when adjusting the closure of the hook and loop in an embodiment of the present invention; Figure 6 This is a schematic diagram of the structure when the buckle is opened according to an embodiment of the present invention; Figure 7 This is a schematic diagram of the structure when the buckle is opened according to an embodiment of the present invention; Figure 8 This is a schematic diagram of the structure when the buckle is opened according to an embodiment of the present invention; Figure 9 This is a schematic diagram of the structure when the buckle is opened according to an embodiment of the present invention; Figure 10 This is a bottom view structural diagram of an embodiment of the present invention; Figure 11 This is a bottom-view three-dimensional structural diagram of an embodiment of the present invention.

[0015] Explanation of reference numerals in the attached drawings: 1. Grain discharge section frame; 2. Grain distribution plate; 3. Adjustable buckle; 4. Grain discharge plate; 5. Heavy-duty spring pin; 6. Grain discharge roller assembly; 7. Leak-proof eaves; 8. Tie rod; 9. Drive motor; 10. Protective cover; 11. Reinforced flange; 12. Tilting tray; 13. Fixed tray; 14. Leak-proof plate. Detailed Implementation

[0016] The present invention will be further illustrated below with reference to specific embodiments. The purpose of this illustration is solely to provide a better understanding of the invention. Therefore, the examples given do not limit the scope of protection of the present invention.

[0017] like Figure 1 - Figure 11 As shown, this embodiment provides a grain discharge structure for a grain drying silo, including a grain discharge section frame 1. Multiple horizontally arranged grain dividing plates 2 are fixed along the length of the inner cavity of the grain discharge section frame 1. The grain dividing plates 2 are inverted triangular in shape. A discharge tray assembly is provided between the bottoms of adjacent grain dividing plates 2, forming a grain discharge channel between the grain dividing plates 2 and the discharge tray. A grain discharge roller assembly 6 is provided within the grain discharge channel. One end of the grain discharge roller assembly 6 extends to the outside of the grain discharge section frame 1 and is connected to a drive assembly. The discharge tray assembly includes components relatively fixed to... Several sets of fixed pallets are located on both sides of the inner wall of the grain discharge section frame 1. The bottom of each fixed pallet has ribs arranged horizontally and vertically. A flip-over pallet is detachably and rotatably connected between the fixed pallets in the same group. Fixed pallets are located on the outer edges of the flip-over pallets, serving as a connection between the two sides. An adjustable latch 3, which can be quickly locked or released, is located between the free end of the flip-over pallet away from the grain discharge channel and one side wall of the grain distribution plate 2. The total length of the rotating pallet is 3.7m, and four tension handles are arranged horizontally. Each tension handle has a load-bearing capacity of 990 kg. G. The rotating pallet is supported by the tension handle and the heavy spring pin. There is an 8mm gap between the two sides of the flipping pallet and the adjacent fixed pallet to prevent jamming during flipping. A leak-proof plate is welded to the outer edge of the flipping pallet away from the grain discharge channel. When the flipping pallet and the fixed pallet are connected, one side of the leak-proof plate is welded to the rotating pallet to cover the gap and prevent grain leakage. Specifically, a locking tongue component with an adjustable latch 7 is provided on the free end of the flipping pallet away from the grain discharge channel. A locking seat is fixed on the side wall of the corresponding grain distribution plate 2. The locking tongue component includes a fixed seat fixed on the flipping pallet. The fixed seat is provided with a handle. An adjusting shaft can be rotatably passed through the handle. Both ends of the adjusting shaft are connected to a U-shaped locking rod. The side of the locking rod away from the adjusting shaft can be locked on the locking seat to realize the quick locking or unlocking state switching of the flipping pallet. The locking tongue component is a mature locking structure. Multiple horizontally arranged grain discharge plates 4 are fixed in the inner cavity of the grain discharge section frame 1 along the length direction. The grain discharge plates 4 are located above the grain distribution plate 2 and are staggered with it.

[0018] Preferably, both the fixed tray and the flip tray are V-shaped. The fixed tray has a positioning seat with a shaft hole, and the flip tray is fixedly equipped with a heavy-duty spring pin 5. The pin shaft of the heavy-duty spring pin 5 is detachably inserted into the shaft hole, allowing the flip tray to rotate around the pin shaft. This arrangement provides a specific and reliable connection between the flip tray and the fixed tray. The heavy-duty spring pin 9 and the adjusting latch 3 are commercially available standard parts, and heavy-duty spring pins are provided on the left and right sides of the flip tray. The heavy-duty spring pin includes a slotted positioning plate fixed to the flipping tray. A pin with a handle runs through the vertical surface of the positioning plate. One end of the pin can be rotatably inserted into the shaft hole. The pin is made of galvanized iron with a diameter of 12mm. The heavy-duty spring pin 9 can bear a load of 3 tons. A return spring is fitted on the rod inside the positioning plate. Limiting posts are provided on both sides of the center of the plane of the positioning plate. A limiting rod runs through the rod inside the positioning plate, away from the handle. The limiting spring is located between the limiting rod and the vertical surface of the positioning plate on the other side. By rotating the handle to change the direction of the limiting rod, the limiting rod can pass through the limiting post without interference. Then, by rotating it again, the limiting rod can be locked on the two limiting posts. The V-shaped structure enhances the flow guidance and load-bearing capacity of the tray. The application of the heavy-duty spring pin 5 allows the flipping tray to rotate stably and can be quickly disassembled by hand without the need for tools, further simplifying the disassembly and assembly process and improving maintenance convenience.

[0019] When the fixed pallet and the flipping pallet are locked in the closed position by adjusting the latch 3, their opposing V-shaped inner sidewalls align perfectly, forming a complete V-shaped groove at the bottom of the grain discharge channel. The core function of this V-shaped groove is to guide the grain to converge and facilitate scraping when the grain discharge roller 6 rotates; and to prevent grain from flowing by gravity when the machine stops. To achieve the latter, the angle between the inclined sidewall of the groove near the outlet and the horizontal plane is greater than 0°, forming a non-horizontal "nest" structure, which effectively prevents residual grain from continuing to flow and leak due to gravity when the grain discharge roller 6 stops rotating.

[0020] Preferably, the grain discharge roller assembly 6 includes a bearing seat fixed on the grain discharge section frame 1 and a rotating shaft supported on the bearing seat by a bearing. A sealing plate is provided on the side of the bearing seat to effectively prevent dust and debris generated by grain flow from entering the bearing seat and improve the service life of the bearing seat. Plate-shaped grain discharge strips are evenly distributed around the circumference of the rotating shaft. The use of plate-shaped grain discharge strips instead of traditional round steel can increase the contact and pushing area with the grain and prevent the phenomenon of slippage or short flow distance caused by the contact between the round steel and the grain, which would lead to an increase in grain discharge time and energy consumption.

[0021] Preferably, one of the bottom ends of the grain distribution plate 2 extends above the rotating shaft, and an anti-leakage plate 7 is integrally formed at this end, extending horizontally downward and toward the grain discharge direction. The L-shaped anti-leakage plate 7 structure can not only strengthen the structural strength of the end of the grain distribution plate 2 and reduce deformation, but more importantly, its horizontally extended part can cooperate with the plate-shaped grain discharge strip when the grain discharge roller stops rotating, forming a certain degree of mechanical obstruction for the grain that may overflow, which helps to reduce grain leakage when the equipment stops.

[0022] Preferably, tie rods 8 are provided at intervals between adjacent grain distribution plates 2. The arrangement of tie rods 8 can form a stable support connection between the grain distribution plates 2, effectively improving the overall structural rigidity and deformation resistance of the grain distribution plate group 2, adapting to working conditions that bear grain loads for a long time, and extending the service life of the equipment.

[0023] Preferably, the drive assembly includes a drive motor 9 located in the middle of the outer side of the grain discharge section frame 1. The drive motor 9 is connected to the grain discharge roller assemblies 6 on the left and right sides for transmission, and synchronously drives the grain discharge roller assemblies 6 on both sides to rotate. The extended ends of the rotating shafts of the grain discharge roller assemblies 6 on the left and right sides are respectively equipped with driven sprockets. The drive motor 9 and the grain discharge roller assemblies 6 on the left and right sides are connected by two independent chains to form a chain drive. This centrally symmetrical power layout can shorten the length of the single-sided transmission chain compared with the traditional single-sided drive, which helps to reduce the sensitivity of the transmission system to the installation accuracy, reduce vibration and tension problems caused by excessive chain length, and may make the power transmission more stable.

[0024] Preferably, a protective cover 10 is provided on the grain discharge section frame 1 and on the outer side of the end of the grain discharge roller assembly 6. The protective cover 10 is provided with an observation hole. The protective cover 10 can provide safety protection and dust protection for the transmission components, ensuring operational safety and equipment cleanliness. The observation hole allows for a direct inspection of the operating status and wear of the internal transmission components such as sprockets and chains without disassembling the protective cover 10, facilitating daily inspection and maintenance. The rotation direction is engraved on the cover to prevent incorrect forward and reverse rotation during motor installation and debugging.

[0025] Preferably, the bottom edges of the fixed pallet and the flip-up pallet are bent downward to form a reinforcing flange 11. This downwardly bent reinforcing flange 11 can significantly enhance the structural strength of the bottom edge of the V-shaped pallet, preventing it from deforming or cracking during long-term use or when subjected to large grain pressure, thereby improving the durability and reliability of the pallet assembly.

[0026] Grain falls from the drying silo and is initially divided by the staggered grain discharge plates 4 located above the grain distribution plate 2. It then enters the discharge channel formed by the inverted triangular grain distribution plate 2 and the bottom V-shaped discharge tray assembly. By operating the adjusting latch 3 between the free end of the flip tray and the side wall of the grain distribution plate 2, the tray can be quickly unlocked and, with the help of the heavy-duty spring pin 5, flipped downwards to open, facilitating channel cleaning. If cleaning is difficult, the flip tray can be removed for easier cleaning. After cleaning, the flip tray is flipped upwards to the closed position, and the adjusting latch 3 is used to lock it. At this point, the fixed tray and the inner side wall of the flip tray align to form a complete V-shaped groove as the bottom of the channel. When the drive motor 9 starts, it synchronously drives the two side discharge roller assemblies 6 to rotate via a symmetrically arranged double chain drive in the center. The plate-shaped discharge strips on the rotating shaft rotate accordingly, scraping and discharging the grain accumulated in the V-shaped groove forward along the channel. During this process, the tie rods 8 between the grain distribution plates 2 provide structural support, the L-shaped anti-leakage plate 7 at the bottom of the grain distribution plate 2 is fitted with the top of the rotating shaft, and the reinforcing flange 11 at the bottom of the support plate enhances its load-bearing capacity. When the equipment is running, the rotation direction and operating status of the internal sprocket can be viewed through the observation hole on the protective cover 10; when it is necessary to stop the machine, the drive motor 9 is turned off, and the grain discharge roller stops rotating. At this time, the inclined angle of the V-shaped groove, the horizontal extension of the L-shaped anti-leakage plate 7 and the gap between the top surface of the plate-shaped grain discharge strip work together to limit the automatic leakage of residual grain.

[0027] The above description is merely a preferred embodiment of the present invention and does not limit the scope of the present invention. All equivalent changes made based on the description and drawings of the present invention are included within the scope of the present invention.

Claims

1. A grain discharge structure of a grain drying square bin, comprising a grain discharge section frame, a plurality of transversely arranged grain distribution plates are fixed in the middle of the inner cavity of the grain discharge section frame along the length direction, the grain distribution plates are inverted triangular, discharge support plate assemblies are arranged between the bottoms of adjacent grain distribution plates, grain discharge channels are formed between the grain distribution plates and the discharge support plates, grain discharge roller assemblies are arranged in the grain discharge channels, one end of the grain discharge roller assemblies extends to the outside of the grain discharge section frame and is connected with a driving assembly, characterized in that: The unloading pallet assembly comprises a plurality of fixed pallets fixed on both sides of the inner wall of the grain discharging section frame, and the fixed pallets in the same group are detachably connected with turnover pallets.

2. The grain discharge structure of the grain drying square bin according to claim 1, characterized in that: The fixed pallets and the turnover pallets are both in V shape, the fixed pallets are provided with positioning seats with shaft holes, and the turnover pallets are fixedly provided with heavy spring latches, the pin shafts of the heavy spring latches are detachably inserted into the shaft holes, and the turnover pallets can rotate around the pin shafts.

3. The grain discharge structure of the grain drying square bin according to claim 1, characterized in that: The grain discharging roller assembly comprises a bearing seat fixed on the grain discharging section frame and a rotating shaft supported on the bearing seat through bearings, and the rotating shaft is provided with plate-shaped grain discharging strips at intervals.

4. The grain discharging structure of the grain drying square bin according to claim 3, characterized in that: One of the bottom ends of the grain distribution plates extends above the rotating shaft, and an anti-leak eave plate extending downward and toward the grain discharging direction is integrally formed at the end.

5. The grain discharge structure of the grain drying bin according to claim 1, characterized in that: The adjacent grain distribution plates are provided with reinforcing ribs at intervals.

6. The grain discharge structure of the grain drying square bin according to claim 1, characterized in that: The driving assembly comprises a driving motor arranged at the middle part of the outer side of the grain discharging section frame, and the driving motor is in transmission connection between the grain discharging roller assemblies on the left and right sides to synchronously drive the grain discharging roller assemblies on the left and right sides to rotate.

7. The grain discharge structure of the grain drying bin according to claim 6, characterized in that: A protective cover is arranged on the grain discharging section frame and located outside the end part of the grain discharging roller assembly, and the protective cover is provided with an observation hole.

8. The grain discharge structure of the grain drying bin according to claim 1, characterized in that: The bottom edges of the fixed pallets and the turnover pallets are bent downward to form reinforcing flanges.

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