A self-made large-tonnage grain dryer with a grain-spinning tray

Abstract

This utility model discloses a self-made large-tonnage grain dryer's grain-spinning disc, including a fixed disc, several sector plates, connecting blocks, a transmission rod, material-dispensing plates, and spinning disc teeth. Several sector plates, spliced ​​together to form a concave outer disc, are arranged around the outer periphery of the fixed disc. The sector plates are fixed to the fixed disc by mounting edges and mounting screws. Adjacent sector plates are connected by connecting blocks and fixing pins. A detachable transmission rod is installed at the center of the fixed disc. Several material-dispensing plates are arranged on the surface of the fixed disc, and spinning disc teeth are arranged on the inner side of the sector plates. The transmission rod is connected to the connecting sleeve by a locking block, locking groove, locking groove, and locking screws. This utility model features a detachable and modular design for easy transportation and maintenance. Multi-point limiting improves structural stability, and the combined action of the material-dispensing plates and spinning disc teeth enhances the uniformity of grain spreading and drying efficiency. It is suitable for use in large-tonnage grain drying equipment.

Description

Technical Field

[0001] This utility model belongs to the field of grain-spinning tray technology, specifically relating to a self-made large-tonnage grain dryer grain-spinning tray. Background Technology

[0002] Grain drying, as a crucial step in grain storage and deep processing, is widely used in various stages of grain processing, storage, and distribution. Its application is particularly frequent during the harvest season for major grain commodities such as rice, wheat, and corn, when large-tonnage grain drying equipment is employed. In large-scale grain drying equipment, to improve the uniformity of grain distribution within the drying chamber, a grain-spreading disc structure is often used for initial grain dispersion. This allows the grain to be evenly spread across the drying zone under the influence of gravity and rotational inertia, thereby improving overall drying efficiency.

[0003] In existing technologies, most grain-spinning trays are integral castings or one-piece molded parts, lacking modular design in structure, resulting in high manufacturing costs and inconvenient transportation. This is especially true for large-tonnage equipment where the tray size requirements are large, significantly increasing the difficulty of overall transportation, installation, and maintenance. At the same time, traditional grain-spinning trays typically rely on fixed blades and the shape of the structural edges to disperse and scatter grain during rotation. Their structure is simple, limiting the grain-scattering effect. Especially when the grain flow rate fluctuates greatly, problems such as grain accumulation and uneven spreading can easily occur, thus affecting the uniformity of drying and energy efficiency.

[0004] In addition, existing grain-spinning tray structures often suffer from inconvenient assembly and are prone to loosening or damage during operation. Especially under high load and high frequency operation conditions, the lack of effective fastening methods between adjacent structures leads to insufficient stability of the grain-spinning tray operation, which in turn affects the service life and operational safety of the entire machine. Utility Model Content

[0005] In view of the problems existing in the prior art, the purpose of this utility model is to provide a self-made grain-spinning tray for a large-tonnage grain dryer, which can achieve efficient and uniform spreading, has a stable and reliable structure, and is suitable for grain-spinning trays in large-tonnage grain dryers.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A self-made large-tonnage grain dryer's grain-spinning tray includes a fixed tray. The outer periphery of the fixed tray is provided with several fan-shaped plates arranged in a circular pattern. The surfaces of the fan-shaped plates are curved, and the side of each fan-shaped plate facing the center is fixed to the fixed tray. The edges of the fan-shaped plates are joined together and connected and fixed by connecting blocks. The fan-shaped plates are spliced ​​together to form a concave outer tray.

[0008] A transmission rod is detachably connected to the center of the fixed plate, and several radially arranged material-pushing plates are fixed on the upper surface of the fixed plate, while several throwing teeth are fixed on the inner surface of the fan-shaped plate.

[0009] Furthermore, pin holes are provided on the outer edges of the sector plate near both ends, and the inner edges of the sector plate are fixed with downwardly bent mounting edges, which are fixed to the mounting plate by mounting screws.

[0010] Furthermore, the outer circumferential surface of the fixed plate is provided with threaded holes that mate with the mounting screws, and a connecting sleeve that can be detachably connected to the transmission rod is fixed at the center of the upper surface of the fixed plate.

[0011] Furthermore, several slots are provided on the side wall of the inner hole of the connecting sleeve, and a locking screw is installed on the outer thread of the connecting sleeve.

[0012] Furthermore, a locking block that mates with the slot is fixed near the lower end of the transmission rod, and a locking groove is also provided on the transmission rod.

[0013] Furthermore, the connecting block is U-shaped and simultaneously engages with two adjacent sector plates, and two insertion holes are provided on one side of the connecting block, each containing a fixing pin that is respectively inserted into a pin hole on one of the two adjacent sector plates.

[0014] Compared with the prior art, the beneficial effects of this utility model are:

[0015] This utility model constructs a concave grain-spinning tray structure by splicing together several fan-shaped plates with curved surfaces. Compared with the existing integrally cast or one-piece molded grain-spinning trays, it improves the flexibility of assembly and transportability, and can be customized according to the actual dryer specifications. It significantly reduces manufacturing and maintenance costs and solves the problems of high manufacturing cost and difficult transportation and installation of the existing grain-spinning tray structure.

[0016] This utility model sets a connecting block between adjacent sector plates, and the connecting block is fixed by a pin in conjunction with the pin hole on the edge of the sector plate to limit the connection on both sides, which effectively improves the connection stability and shock resistance between sector plates. It can prevent loosening or displacement during high load operation and solves the problem of unstable operation of existing assembly structures.

[0017] This utility model features a connecting sleeve at the center of the fixed plate. The connecting sleeve's inner wall groove engages with a locking block on the transmission rod, and a locking screw presses the transmission rod's locking groove, forming a double mechanical locking structure. This ensures stable and reliable power transmission and solves the problems of loose connections and inaccurate positioning in existing grain-spinning disc transmission structures.

[0018] This invention features several material-distributing plates on a fixed plate to evenly distribute the grain onto the surface of a fan-shaped plate, and throwing teeth on the inner side of the fan-shaped plate for further dispersion and scattering of the grain. Compared with traditional structures, this invention significantly improves the uniformity of grain distribution, enhances the drying effect, and solves the problems of uneven grain distribution and accumulation affecting drying efficiency in existing equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the sector-shaped plate of this utility model;

[0021] Figure 3 This is a schematic diagram of the fixing plate of this utility model;

[0022] Figure 4 This is a schematic diagram of the transmission rod of this utility model;

[0023] Figure 5 This is a schematic diagram of the connecting block of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 1. Sector plate; 11. Pin hole; 12. Mounting edge; 13. Mounting screw; 2. Connecting block; 21. Fixing pin; 22. Insertion hole; 3. Swing disc teeth; 4. Transmission rod; 41. Locking groove; 42. Clamping block; 5. Fixing disc; 51. Threaded hole; 52. Locking screw; 53. Connecting sleeve; 54. Clamping groove; 6. Material guide plate. Detailed Implementation

[0026] To make the objectives and advantages of this utility model clearer, the following detailed description is provided in conjunction with embodiments. It should be understood that the following text is merely used to describe one or more specific embodiments of this utility model and does not strictly limit the scope of protection specifically claimed by this utility model.

[0027] like Figure 1As shown, a self-made large-tonnage grain dryer's grain-throwing tray includes a fixed plate 5. Several fan-shaped plates 1 arranged in a circular pattern are arranged around the outer periphery of the fixed plate 5. The surfaces of the fan-shaped plates 1 are curved, forming a concave structure to facilitate concentrated grain throwing. The center-facing side of each fan-shaped plate 1 is fixed to the fixed plate 5. The mounting edges 12 of the fan-shaped plates 1 are connected to the threaded holes 51 on the fixed plate 5 via mounting screws 13, thus achieving a stable fixing structure. The edges of each pair of fan-shaped plates 1 are joined together and fixed by connecting blocks 2. The connecting blocks 2 are securely positioned by fixing pins 21 passing through insertion holes 22 and pin holes 11, preventing loosening or misalignment during operation. The fan-shaped plates 1 are spliced ​​together to form a concave outer plate, which facilitates the throwing of grain from above the dryer. The falling grain is guided to the area of ​​the feeding plates 6 and the throwing disc teeth 3, thereby improving the spreading efficiency. The center of the fixed plate 5 is detachably connected to the transmission rod 4. The transmission rod 4 is engaged with the groove 54 on the inner wall of the connecting sleeve 53 by the locking block 42. At the same time, the locking screw 52 is screwed into the outside of the connecting sleeve 53 and pressed into the locking groove 41 on the transmission rod 4, thereby achieving stable fixation of the transmission rod 4. Several radially arranged feeding plates 6 are fixed on the upper surface of the fixed plate 5. The feeding plates 6 are used to spread the falling grain outward to the surface of the fan-shaped plate 1, and under the action of centrifugal force, they work with the throwing disc teeth 3 to achieve uniform distribution. Several throwing disc teeth 3 are fixed on the inner surface of the fan-shaped plate 1. The throwing disc teeth 3 are used to further divert the grain and throw it outward, improving the uniformity of grain spreading in the drying area and avoiding accumulation that affects the drying efficiency.

[0028] like Figure 2 As shown, pin holes 11 are provided near both ends of the outward edge of the sector plate 1. The arrangement of the pin holes 11 is used to cooperate with the insertion holes 22 and fixing pins 21 on the connecting block 2, so that the adjacent sector plates 1 form a stable connection and enhance the overall structural strength. The inward edge of the sector plate 1 is fixed with a downwardly bent mounting edge 12. The mounting edge 12 is a right-angle bent edge structure. The connection is achieved by the mounting screw 13 passing through the mounting edge 12 and screwing it into the threaded hole 51 on the fixing plate 5, which ensures that the structure is easy to install and can be repeatedly disassembled and reassembled, improving the convenience of equipment maintenance and the flexibility of transportation and assembly.

[0029] like Figure 3 As shown, the outer circumferential surface of the fixed disk 5 is provided with threaded holes 51 that mate with the mounting screws 13. The even distribution of the threaded holes 51 ensures that each sector plate 1 can be stably installed and form a complete grain-throwing tray structure around the fixed disk 5. A connecting sleeve 53 that is detachably connected to the transmission rod 4 is fixed at the center of the upper surface of the fixed disk 5. The connecting sleeve 53 is coaxially fixed to the center of the fixed disk 5 by welding or threaded installation, and serves as the central node of the transmission structure to transmit the rotational power of the motor.

[0030] like Figure 3As shown, several slots 54 are provided on the side wall of the inner hole of the connecting sleeve 53. The slots 54 are arranged longitudinally to engage with the locking block 42 on the transmission rod 4 for positioning, thereby preventing the transmission rod 4 from sliding axially or rotating during power transmission. A locking screw 52 is installed on the outer thread of the connecting sleeve 53. The locking screw 52 can press and fix the locking groove 41 of the transmission rod 4 through the rotation pressing structure, improving the stability of the connecting parts and avoiding loosening or separation during high-frequency rotation.

[0031] like Figure 4 As shown, a locking block 42 that mates with the slot 54 is fixed near the lower end of the transmission rod 4. The locking block 42 adopts a raised annular structure to form a snap-fit ​​with the inner wall of the connecting sleeve 53, which improves the installation efficiency and connection reliability. A locking groove 41 is also provided on the transmission rod 4. The locking groove 41 is used to lock the end of the screw 52 for limiting and pressing. The double positioning structure realizes a stable connection between the power input shaft and the grain-spinning disc structure, ensuring efficient and stable transmission of power when running at high speed.

[0032] like Figure 5 As shown, the connecting block 2 is U-shaped and simultaneously engages with two adjacent sector plates 1. The U-shaped structure forms a clamping and stabilizing structure that can effectively prevent misalignment between the sector plates 1. Two insertion holes 22 are provided on one side of the connecting block 2. The insertion holes 22 are used to insert fixing pins 21. The fixing pins 21 pass through the insertion holes 22 and are inserted into the pin holes 11 on the edge of the sector plate 1, forming a multi-point locking structure, which improves the connection stability and ensures that the overall structure of the grain-spinning tray does not shift or fail under high load operating conditions.

[0033] The working principle of this utility model is as follows: When assembling the entire grain-spinning tray, several fan-shaped plates 1 are fixed to the fixed plate 5 by mounting edges 12 and mounting screws 13, and the edges of the several fan-shaped plates 1 are aligned. Then, the connecting block 2 is fitted onto the joint of two adjacent fan-shaped plates 1 and engages with the two fan-shaped plates 1. Then, the fixing pin is passed through the insertion hole 22 and inserted into the pin hole 11, thereby completing the fixing of the joint of the edges of two adjacent fan-shaped plates 1, thus completing the production of the grain-spinning tray on the large-tonnage grain dryer.

[0034] When using the grain-spinning disc, insert the lower end of the transmission rod 4 into the inner side of the connecting sleeve 53, and then tighten the locking screw 52 into the locking groove 41 to fix the transmission rod 4. At this time, the motor on the dryer drives the transmission rod 4 to rotate the fixed disc 5. The material-dispersing plate 6 on the fixed disc 5 will disperse the grain falling from above to the surroundings. The grain dispersed to the surroundings will be evenly scattered outwards by the dispersing disc teeth 3, thus completing the grain dispersion work during grain drying.

[0035] The above description is merely a preferred embodiment of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. Structures, devices, and operating methods not specifically described or explained in this utility model, unless otherwise specified or limited, shall be implemented using conventional methods in the field.

Claims

1. A self-made large-tonnage grain dryer's grain-spinning tray, characterized in that: Includes a fixed disk (5), and the outer periphery of the fixed disk (5) is provided with a number of fan-shaped plates (1) arranged in a circular shape. The surface of the fan-shaped plates (1) is set as a curved surface, and the side of the fan-shaped plates (1) facing the center is fixed on the fixed disk (5). The edges of the fan-shaped plates (1) are joined together and connected and fixed by connecting blocks (2). The fan-shaped plates (1) are spliced ​​together to form a concave outer disk. The center of the fixed disk (5) is detachably connected to a transmission rod (4), and the upper surface of the fixed disk (5) is fixed with several radially arranged material-pushing plates (6), and the inner surface of the fan-shaped plate (1) is fixed with several spinning disc teeth (3).

2. The self-made large-tonnage grain dryer grain-spinning tray according to claim 1, characterized in that: The sector plate (1) has pin holes (11) on its outward edge near both ends, and the sector plate (1) has a downwardly bent mounting edge (12) fixed on its inward edge. The mounting edge (12) is fixed to the fixing plate (5) by mounting screws (13).

3. The self-made large-tonnage grain dryer grain-spinning tray according to claim 2, characterized in that: The outer circumferential surface of the fixed plate (5) is provided with a threaded hole (51) that mates with the mounting screw (13), and a connecting sleeve (53) that is detachably connected to the transmission rod (4) is fixed at the center of the upper surface of the fixed plate (5).

4. The self-made large-tonnage grain dryer grain-spinning tray according to claim 3, characterized in that: The inner wall of the connecting sleeve (53) has several slots (54), and the outer side of the connecting sleeve (53) is threaded with a locking screw (52).

5. The self-made large-tonnage grain dryer grain-spinning tray according to claim 4, characterized in that: The transmission rod (4) has a locking block (42) that cooperates with the slot (54) near its lower end, and a locking groove (41) is also provided on the transmission rod (4).

6. The self-made large-tonnage grain dryer grain-spinning tray according to claim 2, characterized in that: The connecting block (2) is U-shaped and simultaneously engages with the two adjacent sector plates (1). Two insertion holes (22) are provided on one side of the connecting block (2). Each of the two insertion holes (22) is provided with a fixing pin (21) that is inserted into the pin hole (11) on the two adjacent sector plates (1).

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