A continuous grain drying and threshing apparatus

Abstract

The utility model discloses a continuous grain drying and threshing device relates to grain drying technical field, including base, the top fixed mounting of base has the support, the top fixed mounting of support has the drying mechanism. The utility model adopts above -mentioned structure, through setting up hot -blast component, with mounting panel fixed hot -blast machine, cooperate and supply hot -blast pipe with hot -blast hopper, make hot -blast can continue even send into drying cylinder, set up agitating component simultaneously, and first motor drives the rotation of pivot and drives the rotation of material -turning net board, makes grain fully turn over to prolong hot -blast contact time, still through the side arm of plugging component, second motor, the cooperation annular support fixed track and support slide block make plugging board stable sealing discharge chute reduce hot -blast leakage, and then promote drying efficiency, guarantee grain drying even, and the support is combined and supports and realizes continuous operation, solves the low drying efficiency in the prior art, and grain is unevenly heated, and hot -blast is easy to leak, and the overall production efficiency is low to the problem that traditional equipment divides the stage operation.

Description

Technical Field

[0001] This utility model belongs to the field of grain drying technology, and specifically relates to a continuous grain drying and threshing device. Background Technology

[0002] After harvesting, grains must be threshed before further processing and consumption. Therefore, the performance of threshing equipment directly affects the processing quality, yield, and overall production efficiency of the grains. Its technological optimization has always been a core focus in the agricultural machinery field. Among existing grain threshing technologies, the single threshing roller mechanism is a widely used traditional equipment form. The core component of this type of mechanism is a rigid metal roller with steel teeth on its surface. During operation, the high-speed rotation of the threshing roller uses the steel teeth to impact the grain ears, thereby breaking them up. Subsequently, the grains are separated from the grain residue and impurities by the filtering effect of a screen and the air separation of a blower system. However, this threshing method based on rigid metal rollers has intractable technical defects. This severely restricts the improvement of threshing efficiency. Because the contact between the grain and the threshing roller is rigid, the grain will directly bear rigid impact during the threshing process. If the impact force is too large, the grain is very easy to break, especially for dry grain with low moisture content, the breakage rate will increase significantly, directly affecting the quality of the grain product and reducing its commercial value. If the impact force is reduced in order to reduce the breakage rate, the grain will not be threshed completely, the grain threshing rate will drop significantly, resulting in a waste of grain resources and affecting the final product yield. In addition, the extrusion pressure formed between the threshing rollers in this type of equipment is difficult to adjust, and it cannot be flexibly adapted to the threshing requirements of different types of grain with different moisture contents, which further aggravates the problem of unstable threshing rate and makes it difficult to meet the diverse requirements of grain threshing operations.

[0003] To address the problems of easy grain breakage and low threshing rate in traditional single-roller threshing mechanisms, relevant technical fields have actively explored improvements. Among them, Chinese Patent No. CN110366959A discloses an elastic roller extrusion threshing device for drying grains. This device, by setting a first roller mechanism and a second roller mechanism on a support, utilizes the characteristics of elastic rollers to replace traditional rigid metal rollers, effectively mitigating the rigid impact between the grain and the rollers. This has achieved certain progress in reducing grain breakage rate and improving threshing rate. Specifically, the first roller mechanism of this device… The structure includes a first threshing roller and a second threshing roller. The two ends of the rotating shaft of the two threshing rollers are rotatably connected by bearing seats, and the first gear and the second gear fixed at the ends of the rotating shafts mesh with each other to ensure that the two rollers can rotate synchronously and in opposite directions, thus ensuring the stability of extrusion threshing. The second roller mechanism has the same structure as the first roller mechanism, forming a two-stage threshing structure to further improve the threshing effect. At the same time, a screen mechanism is set below the second roller mechanism. A motor is installed on the base in the inner area of ​​the support to provide power, and a receiving bin is placed at the bottom of the screen mechanism to collect the threshed grains, forming a relatively complete threshing operation process.

[0004] Although the aforementioned flexible roller extrusion threshing device improves upon the shortcomings of traditional equipment in the threshing process, its design flaws in the drying system have gradually become apparent in practical applications, becoming a new bottleneck restricting the overall performance of the equipment. When drying grains, this device relies solely on the natural contact between the grains and hot air during their descent. The contact time between the grains and hot air is extremely short, and there is a lack of effective turning structure. This drying method results in insufficient turning of the grains during the drying process, with some grains remaining in a piled-up state, leading to uneven heating. This not only results in low overall drying efficiency, making it difficult to meet the needs of large-scale, high-efficiency grain processing, but also may lead to localized over-drying and incomplete drying, affecting the quality of the dried grains and consequently adversely impacting subsequent storage and processing stages. Therefore, optimizing the drying structure of the existing flexible roller extrusion threshing device, extending the contact time between the grains and hot air, achieving multiple turning drying processes, and improving drying efficiency and uniformity have become key issues that urgently need to be addressed in the further design and improvement of this type of grain threshing equipment. Utility Model Content

[0005] In view of the problems mentioned in the background art, the purpose of this utility model is to provide a continuous grain drying and threshing device to solve the problems raised in the background art.

[0006] The above-mentioned technical objective of this utility model is achieved through the following technical solution:

[0007] A continuous grain drying and threshing device includes a base, a support fixedly mounted on the top of the base, a drying mechanism fixedly mounted on the top of the support, and a crushing mechanism fixedly mounted on the top of the drying mechanism.

[0008] The drying mechanism includes a drying cylinder, which is fixedly installed on the top of the support. A discharge trough is provided at the bottom of the drying cylinder. A sealing component is fixedly installed on one side of the drying cylinder, with the sealing end of the sealing component covering the outside of the discharge trough. An agitation component is fixedly installed inside the drying cylinder. A hot air component is fixedly installed on the back of the drying cylinder at the upper middle part of the support. The output end of the hot air component is connected to the inside of the drying cylinder.

[0009] As a preferred technical solution, the agitation component includes a first motor, which is fixedly installed on the side of the drying cylinder away from the sealing component. The output end of the first motor is fixedly installed through the drying cylinder with a rotating shaft, and the outer surface of the rotating shaft is fixedly installed with material turning mesh plates arranged in a ring at equal intervals.

[0010] As a preferred technical solution, the hot air assembly includes a mounting plate, which is fixedly installed on the back of the drying cylinder at the upper middle part of the support. A hot air blower is fixedly installed on the top of the mounting plate, a heating air duct is fixedly installed at the output end of the hot air blower, and a hot air bucket is fixedly installed at the output end of the heating air duct. The output end of the hot air bucket is connected to the interior of the drying cylinder.

[0011] As a preferred technical solution, the sealing assembly includes a side arm, which is fixedly installed on the side of the drying cylinder away from the first motor. A second motor is fixedly installed on the outer side of the side arm. The output end of the second motor passes through the side arm and is fixedly installed with a connecting arm. A sealing plate is fixedly installed at the bottom of the connecting arm and covers the outer side of the discharge chute.

[0012] As a preferred technical solution, an annular support rail is fixedly installed on the side edge of the drying cylinder away from the side arm, and a support slider is fixedly installed on the outer side of the sealing plate, the support slider being slidably connected to the outer side of the annular support rail.

[0013] As a preferred technical solution, the crushing mechanism includes a crushing box, which is fixedly installed on the top of the drying cylinder. The bottom of the crushing box is connected to the inside of the drying cylinder. Two sets of threshing rollers are rotatably connected to the upper inside of the crushing box. A transmission gear is fixedly installed at one end of the threshing rollers. The transmission gears are meshed with each other. A third motor is fixedly installed on the upper side of one side of the crushing box. The output end of the third motor is fixedly connected to the outside of a threshing roller.

[0014] As a preferred technical solution, a feeding frame is fixedly installed on the top of the crushing box, and a centralized guide hopper is fixedly installed inside the feeding frame. The side of the centralized guide hopper is shaped like an inverted isosceles trapezoid. A covering shell is fixedly installed on the upper end of the side of the crushing box away from the third motor, and the covering shell covers the outside of the transmission gear.

[0015] In summary, the present invention has the following main advantages:

[0016] First, during the application of this technical solution, by setting a centralized guide hopper in the feeding frame, the grain can be accurately and stably entered into the crushing box during use, avoiding scattering or accumulation on the side of the box; at the same time, two sets of threshing rollers with transmission gears are set in the crushing box, which are driven by a third motor, so that the threshing rollers can rotate synchronously in opposite directions, and the extrusion pressure can be controlled by adjusting the motor speed to achieve gentle and uniform threshing. Furthermore, by covering the transmission gears with a shell, the effect of reducing grain breakage, improving the threshing rate, and ensuring that the transmission components are not affected by impurities is achieved. This solves the problems of grain breakage or low threshing rate caused by rigid impact of traditional single threshing rollers, difficulty in adjusting the extrusion pressure, and easy failure of transmission components due to interference from impurities in the existing technology.

[0017] Secondly, during the application of this technical solution, by setting up a hot air assembly and using a mounting plate to fix the hot air blower, in conjunction with the hot air supply pipe and hot air hopper, hot air can be continuously and evenly delivered into the drying cylinder. At the same time, a stirring assembly is set up, and the first motor drives the rotating shaft to rotate the turning screen plate, so that the grain can be fully turned over to prolong the hot air contact time. Furthermore, through the side arm of the sealing assembly, the second motor and other structures, in conjunction with the annular support rail and support slider, the sealing plate can stably seal the discharge chute to reduce hot air leakage, thereby improving drying efficiency and ensuring uniform drying of grains. Combined with the support frame, continuous operation is achieved, solving the problems of low drying efficiency, uneven heating of grains, easy hot air leakage, and low overall production efficiency caused by the staged operation of traditional equipment in the existing technology. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a side view of the structure of this utility model;

[0020] Figure 3 This is a schematic diagram of the rear view structure of this utility model;

[0021] Figure 4 This is a schematic diagram of the internal structure of the drying cylinder of this utility model;

[0022] Figure 5 This is a side view of the structure of this utility model.

[0023] Reference numerals: 1. Base; 2. Support; 3. Drying mechanism; 31. Drying cylinder; 32. Discharge chute; 33. Sealing assembly; 331. Side arm; 332. Second motor; 333. Connecting arm; 334. Sealing plate; 335. Annular support rail; 336. Support slider; 34. Agitation assembly; 341. First motor; 342. Rotating shaft; 343. Turning screen plate; 35. Hot air assembly; 351. Mounting plate; 352. Hot air blower; 353. Heating air duct; 354. Hot air hopper; 4. Crushing mechanism; 41. Crushing box; 42. Threshing roller; 43. Transmission gear; 44. Third motor; 45. Feed frame; 46. Centralized guide hopper; 47. Covering shell. Detailed Implementation

[0024] Example

[0025] refer to Figures 1 to 5 A continuous grain drying and threshing device according to this embodiment includes a base 1, a support 2 fixedly installed on the top of the base 1, a drying mechanism 3 fixedly installed on the top of the support 2, and a crushing mechanism 4 fixedly installed on the top of the drying mechanism 3.

[0026] The drying mechanism 3 includes a drying cylinder 31, which is fixedly installed on the top of the support 2. A discharge trough 32 is provided at the bottom of the drying cylinder 31. A sealing component 33 is fixedly installed on one side of the drying cylinder 31, with the sealing end of the sealing component 33 covering the outside of the discharge trough 32. An agitation component 34 is fixedly installed inside the drying cylinder 31. A hot air component 35 is fixedly installed on the back of the drying cylinder 31 at the upper middle part of the support 2. The output end of the hot air component 35 is connected to the inside of the drying cylinder 31. During the operation of this device, the grain to be processed is first fed into it. The pulverizing mechanism 4 threshes the grains, which then naturally enter the drying mechanism 3 below, eliminating the need for additional transfer steps. This reduces grain loss and time wastage during transfer, laying the foundation for efficient subsequent processing. Once the grains enter the drying cylinder 31 of the drying mechanism 3, the hot air assembly 35 on the back of the drying cylinder 31 begins operation. The hot air generated by the hot air assembly 35 continuously supplies the interior of the drying cylinder 31, providing a stable heat source for drying the grains and preventing poor drying results due to insufficient or unstable heat sources. Simultaneously, the stirring component 34 inside the drying cylinder 31 is activated to agitate the grains inside, ensuring they come into full contact with the hot air. This prevents uneven heating caused by grain accumulation in localized areas, effectively improving the uniformity of drying and ensuring that each portion of grain reaches the ideal degree of dryness. During the drying process, the sealing component 33 on one side of the drying cylinder 31 remains closed, with its sealing end tightly covering the outside of the discharge chute 32 at the bottom of the drying cylinder 31. This prevents the grains from being discharged from the discharge chute 32 before drying is complete, ensuring that the grains have sufficient time to undergo drying treatment within the drying cylinder 31, further guaranteeing the drying quality. Once the grains are dried, the sealing component 33 opens, and the dried grains are discharged through the discharge chute 32, completing the entire drying process. Throughout the process, the support 2 at the top of the base 1 provides stable support for the drying mechanism 3 and the crushing mechanism 4, ensuring that each mechanism maintains structural stability during operation and preventing displacement due to vibration, which could affect operational efficiency. This allows the entire device to continuously and stably perform grain drying and threshing operations, effectively improving overall processing efficiency.

[0027] refer to Figures 1-3The crushing mechanism 4 includes a crushing box 41, which is fixedly installed on the top of the drying cylinder 31. The bottom of the crushing box 41 is connected to the inside of the drying cylinder 31. Two sets of threshing rollers 42 are rotatably connected to the upper part of the inside of the crushing box 41. A transmission gear 43 is fixedly installed at one end of the threshing roller 42, and the transmission gears 43 are meshed with each other. A third motor 44 is fixedly installed on the upper side of one side of the crushing box 41. The output end of the third motor 44 is fixedly connected to the outside of one of the threshing rollers 42. A feed frame 45 is fixedly installed on the top of the crushing box 41. A centralized guide hopper 46 is fixedly installed inside the feed frame 45. The side of the centralized guide hopper 46 is shaped like an inverted isosceles trapezoid. The crushing box 41 is located away from the third motor. A covering shell 47 is fixedly installed on the upper side of one side of the 44, covering the outside of the transmission gear 43. During the application of this device, when performing grain threshing, the grain to be processed is first fed into the feed frame 45 of the crushing mechanism 4. The centralized guide hopper 46 inside the feed frame 45 guides the fed grain. Since the side shape of the centralized guide hopper 46 is an inverted isosceles trapezoid, it allows the dispersed grain to gradually converge, preventing the grain from scattering outside the crushing box 41 or accumulating at the edge of the crushing box 41 during the feeding process. This ensures that the grain can accurately enter the threshing area inside the crushing box 41, laying the foundation for subsequent efficient threshing. After the grain enters the crushing box 41, the crushing box 41 is started. The third motor 44 at the upper side drives a threshing roller 42 connected to its output end to rotate. Since both sets of threshing rollers 42 are fixedly mounted with transmission gears 43 at one end and the transmission gears 43 are meshed together, the rotating threshing roller 42 drives the other set of threshing rollers 42 to rotate synchronously in the opposite direction through the transmission gears 43. During the rotation, the two sets of threshing rollers 42 form a squeezing and impacting action, threshing the grains that have entered between them and separating the grains from the grain residue. This design of synchronously rotating double threshing rollers 42 in opposite directions allows the grains to be subjected to a more uniform force, avoiding the problem of grain breakage or incomplete threshing caused by concentrated force in the traditional single threshing roller 42, and effectively improving the integrity of the grains. In terms of threshing efficiency and threshing rate, after threshing, the grains and a small amount of grain residue fall into the drying cylinder 31 through the channel connecting the bottom of the crushing box 41 to the inside of the drying cylinder 31 under the action of gravity, realizing a seamless connection between the threshing and drying processes. No additional transfer steps are required, reducing grain loss and operation time. At the same time, the covering shell 47 on the upper part of the crushing box 41 away from the third motor 44 covers the outside of the transmission gear 43, which can prevent grain residue, dust and other impurities generated during the threshing process from entering the gap of the transmission gear 43, avoiding wear or failure of the gear due to impurities, ensuring the stable operation of the transmission system, further improving the service life and operational reliability of the crushing mechanism 4, and ensuring that the entire threshing process is continuous and efficient.

[0028] refer to Figures 1-5The sealing assembly 33 includes a side arm 331, which is fixedly installed on the side of the drying cylinder 31 away from the first motor 341. A second motor 332 is fixedly installed on the outer side of the side arm 331. The output end of the second motor 332 passes through the side arm 331 and is fixedly installed with a connecting arm 333. A sealing plate 334 is fixedly installed at the bottom of the connecting arm 333, covering the outer side of the discharge chute 32. An annular support rail 335 is fixedly installed on the edge of the drying cylinder 31 away from the side arm 331. A support slider 336 is fixedly installed on the outer side of the sealing plate 334. The support slider 336 is slidably connected to the outside of the annular support rail 335. During the application of this device, in the grain drying stage, the sealing component 33 is in working condition to ensure the sealing of the drying cylinder 31. At this time, the second motor 332 is not running, and the connecting arm 333 remains fixed, so that the bottom sealing plate 334 stably covers the outside of the discharge chute 32, which can effectively prevent the grain in the drying cylinder 31 from leaking out of the discharge chute 32 before drying is completed, and at the same time prevent the hot air in the drying cylinder 31 from being lost through the discharge chute 32, ensuring that the temperature inside the drying cylinder 31 is always maintained stably. The environment provides continuous heat support for grain drying, preventing a decrease in drying efficiency or incomplete drying due to heat loss. After the grain is dried, the second motor 332 is started. When the second motor 332 is running, it drives the connecting arm 333 connected to the output end to rotate. The connecting arm 333 drives the bottom sealing plate 334 to move synchronously, so that the sealing plate 334 gradually disengages from the discharge chute 32, allowing the dried grain to be discharged smoothly through the discharge chute 32. During the movement of the sealing plate 334, the supporting slider 336 on the outer side of the sealing plate 334 moves along the ring on one side of the drying cylinder 31. The sliding of the annular support rail 335 and the cooperation between the support slider 336 and the annular support rail 335 can limit and guide the movement direction of the sealing plate 334, preventing the sealing plate 334 from deviating or getting stuck during movement. This ensures that the sealing plate 334 can smoothly and easily open or close the discharge chute 32. This design not only ensures the sealing reliability of the discharge chute 32 during the drying stage, but also ensures the smoothness of the discharge stage, avoiding operation interruption due to the failure of the sealing component 33. This further improves the stability and continuity of the entire device operation and meets the needs of efficient grain processing.

[0029] refer to Figures 3-5The stirring assembly 34 includes a first motor 341, which is fixedly installed on the side of the drying cylinder 31 away from the sealing assembly 33. The output end of the first motor 341 passes through the drying cylinder 31 and is fixedly installed with a rotating shaft 342. The outer surface of the rotating shaft 342 is fixedly installed with material turning mesh plates 343 arranged in a ring at equal intervals. The hot air assembly 35 includes a mounting plate 351, which is fixedly installed on the back of the drying cylinder 31 at the upper middle part of the support 2. A hot air fan 352 is fixedly installed on the top of the mounting plate 351. A heating air pipe 353 is fixedly installed at the output end of the hot air fan 352. The output end of the heating air pipe 353 is fixedly installed with... The device includes a hot air hopper 354, the output of which is connected to the interior of the drying cylinder 31. During operation, after the grain enters the drying cylinder 31, the stirring component 34 and the hot air component 35 start synchronously to work together to complete the drying operation. When the first motor 341 of the stirring component 34 is running, it drives the rotating shaft 342 connected to its output to rotate. During the rotation of the rotating shaft 342, the turning screen plates 343, which are arranged in a ring at equal intervals on its outer surface, rotate synchronously. The turning screen plates 343 continuously turn over the grain in the drying cylinder 31 during rotation, breaking up the grain accumulation and allowing the grain that might have been at the bottom or inside to also be turned over. Exposing the grains to the drying environment ensures that each portion of the grains is fully in contact with the hot air, preventing localized underheating or overheating due to grain accumulation. This effectively improves drying uniformity and ensures that all grains are dried to the same degree. Simultaneously, the hot air blower 352 of the hot air assembly 35 begins operation. The hot air generated by the blower 352 is delivered through the heating duct 353 at its output end. The heating duct 353 stably guides the hot air to the hot air hopper 354, which then delivers the hot air into the drying cylinder 31. The design of the hot air hopper 354 allows for a wider diffusion range of the hot air upon entering the drying cylinder 31, preventing the hot air from concentrating in localized areas and causing heat loss. Uneven heat distribution ensures a stable and uniform temperature within the drying drum 31, providing a continuous and sufficient heat source for grain drying. This prevents decreased drying efficiency or poor drying quality due to unstable heat supply. The coordinated operation of the two components ensures full contact between the grain and hot air through the turning screen 343, and stable delivery and uniform distribution of hot air through the heating air duct 353 and hot air hopper 354. The combination of these two components significantly improves drying efficiency, shortens the time required for grain drying, and avoids common problems such as uneven drying and low efficiency in traditional drying processes, ensuring that the dried grain meets the requirements for subsequent processing or storage.

[0030] Operating Principle and Advantages: During the application of this device, the first step is the feeding stage. Operators need to feed the wheat, millet, rice, sorghum, and other grains to be processed into the feed frame 45 of the crushing mechanism 4. A centralized guide hopper 46, with an inverted isosceles trapezoidal side shape, is installed inside the feed frame 45, ensuring that the grains fed in are concentrated and guided. This effectively prevents the grains from scattering outside the crushing chamber 41 or accumulating at the edge of the crushing chamber 41 during feeding, allowing them to enter the crushing chamber 41 accurately and stably, laying a good foundation for subsequent threshing operations. Simultaneously, a covering shell 47 is fixedly installed on the upper part of the crushing chamber 41 on the side away from the third motor 44, and... The outer casing 47 covers the outside of the transmission gear 43, effectively protecting the transmission gear 43 during use and preventing grains or external impurities from contacting it. This ensures the transmission gear 43 is always in normal operating condition and provides structural support for the stable operation of subsequent threshing. This design also indirectly improves the overall reliability of the device, avoiding operation interruptions due to transmission component failures. After feeding, the device enters the threshing stage. At this time, the third motor 44 is started. Since the output end of the third motor 44 is fixedly connected to the outside of a threshing roller 42 inside the crushing box 41, the threshing roller 42 will rotate under the drive of the third motor 44. Furthermore, because there are two sets of threshing rollers... Each roller 42 has a transmission gear 43 fixedly mounted at one end, and the transmission gears 43 are meshed together. Therefore, the rotating threshing roller 42 will drive another set of threshing rollers 42 to rotate synchronously in the opposite direction through the transmission gears 43. By setting two sets of synchronously rotating threshing rollers 42 and installing them inside the upper part of the crushing box 41, the two sets of threshing rollers 42 can gently and evenly squeeze and impact the grain that enters the crushing box 41 through the centralized guide hopper 46 during use. Compared with the traditional single threshing roller 42 mechanism, this double threshing roller 42 design effectively avoids the rigid impact caused by the high-speed rotation of the traditional rigid metal roller. At the same time, the operator can adjust the speed of the threshing rollers 42 by controlling the speed of the third motor 44. The rotation speed allows for flexible adjustment of the extrusion pressure of the two sets of threshing rollers 42 on the grain, solving the problem of inconvenient adjustment of extrusion pressure in traditional equipment. This prevents grain breakage due to excessive impact force and avoids low grain removal rate due to insufficient impact force, significantly improving grain integrity and removal rate, reducing grain waste, and ensuring product yield and quality. After threshing, since the crushing box 41 is fixedly installed on the top of the drying cylinder 31 and the bottom of the crushing box 41 is connected to the inside of the drying cylinder 31, the threshed grain will naturally fall from the bottom of the crushing box 41 into the inside of the drying cylinder 31 and smoothly enter the next drying stage, achieving seamless connection between threshing and drying, and creating conditions for subsequent continuous operation.

[0031] After the grain enters the drying drum 31, the device enters the drying stage. During this stage, the hot air assembly 35 and the agitation assembly 34 must be activated simultaneously. Regarding hot air supply, the hot air blower 352 in the hot air assembly 35 is fixedly installed on the top of the mounting plate 351, and the mounting plate 351 is fixedly installed on the back of the drying drum 31 at the upper center of the support 2. This ensures that the mounting plate 351 provides stable support for the hot air blower 352 during use, preventing it from shaking during operation. The hot air generated by the hot air blower 352 is transported through the heating air pipe 353 fixedly installed at its output end. The heating air pipe 353 precisely guides the hot air to the hot air hopper 354, and then... The output end is connected to the inside of the drying cylinder 31, so that hot air can be smoothly delivered into the drying cylinder 31 to provide a continuous and stable heat source for the grains inside the drying cylinder 31. At the same time, by designing the structure of the hot air hopper 354, the range of hot air entering the drying cylinder 31 during use is expanded, ensuring that the hot air is evenly distributed in the drying cylinder 31 and avoiding excessively high or low temperatures in some areas. In terms of grain turning, the first motor 341 in the stirring component 34 is fixedly installed on the side of the drying cylinder 31 away from the sealing component 33, and the output end of the first motor 341 passes through the drying cylinder 31 and is fixedly installed with the rotating shaft 342, so that the rotating shaft 342 can rotate with the first motor 341 when it is running.By fixing the turning screen plates 343 in a ring-shaped arrangement at equal intervals on the outer surface of the rotating shaft 342, the turning screen plates 343 can rotate synchronously when the rotating shaft 342 rotates. During the rotation, the turning screen plates 343 fully turn the grains in the drying cylinder 31. The mesh structure design of the turning screen plates 343 ensures that it does not obstruct the flow of hot air during use, while ensuring that every grain of grain comes into contact with the hot air. Compared with the existing elastic roller extrusion threshing device, where the grains only briefly come into contact with the hot air during the fall, this device significantly extends the contact time between the grains and the hot air through the turning of the turning screen plates 343, effectively solving the problem of low drying efficiency in existing equipment. At the same time, the sealing component 33 is in a closed state during the drying process. The side arm 331 of the sealing component 33 is fixedly installed on the side of the drying cylinder 31 away from the first motor 341, and the second motor 332 is fixedly installed on the outside of the side arm 331. The output end of the second motor 332 passes through the side arm 331 and is fixedly installed with the connecting arm 333. Then the sealing component is closed. Plate 334 is fixedly installed at the bottom of connecting arm 333, so that connecting arm 333 remains fixed when the second motor 332 is not running. The sealing plate 334 can stably cover the outside of the discharge trough 32 at the bottom of the drying cylinder 31, preventing the grain from being discharged from the discharge trough 32 during the drying process. In addition, by fixing an annular support rail 335 on the edge of the drying cylinder 31 away from the side arm 331, and fixing a support slider 336 on the outside of the sealing plate 334, and allowing the support slider 336 to slide on the outside of the annular support rail 335, the support slider 336 and the annular support rail 335 can cooperate with each other during use to support and limit the sealing plate 334, ensuring that the sealing plate 334 stably covers the discharge trough 32, avoiding heat loss due to hot air leakage, maintaining a stable drying environment inside the drying cylinder 31, further improving drying efficiency, ensuring uniform drying of grain, and preventing local over-drying or incomplete drying, ensuring the quality of grain drying, and providing favorable conditions for subsequent grain storage and processing.

[0032] After the grains have been dried in the drying drum 31 for a preset time, the device enters the discharge stage. At this time, the second motor 332 in the sealing assembly 33 is activated. Driven by the second motor 332, the connecting arm 333, which is fixedly installed through the side arm 331, will rotate. When the connecting arm 333 rotates, it drives the sealing plate 334 at the bottom to move synchronously, so that the sealing plate 334 gradually detaches from the discharge chute 32. During the movement of the sealing plate 334, since the supporting slider 336 on the outside of the sealing plate 334 is slidably connected to the outside of the annular supporting rail 335, the supporting slider 336 will slide along the annular supporting rail 335, ensuring that the movement of the sealing plate 334 is smooth and there will be no jamming or displacement. When the sealing plate 334 is completely detached from the discharge chute 32, the dried grains in the drying drum 31 will be smoothly discharged through the discharge chute 32, thus completing the entire grain drying and threshing process. During the entire use, the supporting slider 334 is fixedly installed on the top of the base 1. The support frame 2 provides stable installation support for the drying mechanism 3 and the crushing mechanism 4 during use, ensuring that each mechanism maintains structural stability during operation and will not shift due to vibration or other factors. This device forms a complete continuous operation process from feeding, threshing, drying to discharge. The cooperation between the feeding frame 45 and the centralized guide bucket 46 ensures a continuous and stable feeding of grains. The two sets of threshing rollers 42 of the crushing mechanism 4 continuously perform threshing operations, and the threshed grains fall directly into the drying cylinder 31. The coordinated operation of the hot air assembly 35 and the stirring assembly 34 achieves continuous drying of the grains. By controlling the second motor 332 in the sealing assembly 33, timed discharge can be achieved, and discharge can be completed without interrupting the operation. Compared with the traditional equipment that requires threshing and drying operations in stages, this device significantly reduces the operation interruption time, significantly improves the overall production efficiency, and is more adaptable to the needs of large-scale grain processing in modern agriculture.

[0033] The main component parameters and electronic component specifications of the crushing mechanism 4 in this technical solution are as follows: The threshing roller 42 is made of 45# steel, with a diameter range of 80-120mm, a length range of 480-580mm, and a rotational speed range of 300-500r / min; the transmission gear 43 is made of chromium-molybdenum alloy steel (20CrMo), which has the characteristics of corrosion resistance, high strength, and strong weather resistance, and can be used in the air for a long time. Its module range is 2.5-3.5mm, and the number of teeth is... The range is 25-35 teeth; both the feed frame 45 and the centralized guide hopper 46 are made of 304 stainless steel. The feed frame 45 is 300-400mm long, 250-350mm wide, and 200-300mm high. The upper end of the centralized guide hopper 46 matches the feed frame 45, and the lower end is 150-200mm long and 100-150mm wide. The side tilt angle ranges from 60-75°. The outer shell 47 is made of 304 stainless steel, with a thickness ranging from 2- The internal space completely covers the transmission gear 43. Among the electronic components, the third motor 44 is a three-phase asynchronous motor, model Y100L-2, with a power range of 1.5-2.2kW, a rated voltage of 380V, and a rated current range of 3.0-4.5A. The controller is a PLC controller, model S7-200SMARTCPUSR20, which is installed on the bracket 2 on the outside of the crushing box 41 near the third motor 44. The circuit system is powered by an external 380V three-phase AC power supply. The power supply is connected to the third motor 44 through a circuit breaker of model DZ47-63C10 and a contactor of model CJX2-1210. The output terminals of the PLC controller are connected to the contactor coil, and the input terminals are connected to the start and stop buttons of model LA42P-11. The PLC controller receives the button signals and controls the contactor to open and close, thereby realizing the start and stop control of the third motor 44 and ensuring the stable operation of the threshing roller 42.

[0034] The scope of protection of this application does not involve improvements to the electronic components of the device or equipment. Therefore, the working principles of each electronic component are not described in detail here. The electronic components in this application are all conventional electronic components used in the prior art. They are all conventional technical means in the prior art, and the application of the prior art is very mature. Therefore, they will not be elaborated here.

Claims

1. A continuous grain drying and threshing device, characterized in that: Includes a base (1), a bracket (2) is fixedly installed on the top of the base (1), a drying mechanism (3) is fixedly installed on the top of the bracket (2), and a crushing mechanism (4) is fixedly installed on the top of the drying mechanism (3). The drying mechanism (3) includes a drying cylinder (31), which is fixedly installed on the top of the support (2). A discharge trough (32) is provided at the bottom of the drying cylinder (31). A sealing component (33) is fixedly installed on one side of the drying cylinder (31), and the sealing end of the sealing component (33) covers the outside of the discharge trough (32). An agitation component (34) is fixedly installed inside the drying cylinder (31). A hot air component (35) is fixedly installed on the back of the drying cylinder (31) at the upper middle part of the support (2). The output end of the hot air component (35) is connected to the inside of the drying cylinder (31).

2. The continuous grain drying and threshing device according to claim 1, characterized in that: The stirring component (34) includes a first motor (341), which is fixedly installed on the side of the drying cylinder (31) away from the sealing component (33). The output end of the first motor (341) passes through the drying cylinder (31) and is fixedly installed with a rotating shaft (342). The outer surface of the rotating shaft (342) is fixedly installed with a turning screen plate (343) arranged in a ring at equal intervals.

3. The continuous grain drying and threshing device according to claim 1, characterized in that: The hot air assembly (35) includes a mounting plate (351), which is fixedly installed on the back of the drying cylinder (31) at the upper middle part of the support (2). A hot air blower (352) is fixedly installed on the top of the mounting plate (351). A heating air pipe (353) is fixedly installed at the output end of the hot air blower (352). A hot air bucket (354) is fixedly installed at the output end of the heating air pipe (353). The output end of the hot air bucket (354) is connected to the inside of the drying cylinder (31).

4. A continuous grain drying and threshing device according to claim 3, characterized in that: The sealing assembly (33) includes a side arm (331), which is fixedly installed on the side of the drying cylinder (31) away from the first motor (341). A second motor (332) is fixedly installed on the outside of the side arm (331). The output end of the second motor (332) passes through the side arm (331) and is fixedly installed with a connecting arm (333). A sealing plate (334) is fixedly installed at the bottom of the connecting arm (333), and the sealing plate (334) covers the outside of the discharge trough (32).

5. A continuous grain drying and threshing device according to claim 4, characterized in that: An annular support rail (335) is fixedly installed on the side edge of the drying cylinder (31) away from the side arm (331), and a support slider (336) is fixedly installed on the outside of the sealing plate (334). The support slider (336) is slidably connected to the outside of the annular support rail (335).

6. A continuous grain drying and threshing device according to claim 1, characterized in that: The crushing mechanism (4) includes a crushing box (41), which is fixedly installed on the top of the drying cylinder (31). The bottom of the crushing box (41) is connected to the inside of the drying cylinder (31). Two sets of threshing rollers (42) are rotatably connected to the upper inside of the crushing box (41). A transmission gear (43) is fixedly installed at one end of the threshing roller (42). The transmission gears (43) are meshed with each other. A third motor (44) is fixedly installed on the upper side of one side of the crushing box (41). The output end of the third motor (44) is fixedly connected to the outside of a threshing roller (42).

7. A continuous grain drying and threshing device according to claim 6, characterized in that: A feeding frame (45) is fixedly installed on the top of the crushing box (41), and a centralized guide bucket (46) is fixedly installed inside the feeding frame (45). The side of the centralized guide bucket (46) is arranged in an inverted isosceles trapezoid. A covering shell (47) is fixedly installed on the upper end of the side of the crushing box (41) away from the third motor (44). The covering shell (47) covers the outside of the transmission gear (43).

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