Agricultural grain transport device

Abstract

The present invention relates to the field of grain transport technology, and in particular to an agricultural grain transport device, comprising a base, a shell fixedly installed on the top of the base, a feed hopper and a discharge hopper respectively arranged at both ends of the shell, a cylindrical screen arranged inside the shell, a refrigeration mechanism arranged inside the shell, a mounting plate fixedly installed on the side of the discharge hopper away from the shell, a motor fixedly installed on the top of the mounting plate, a rotating shaft fixedly connected to the output end of the motor, and a spiral hollow disk and a solid disk fixedly connected to the outer wall of the rotating shaft. The advantages are: the inside of the shell maintains a low temperature, the low temperature helps to increase the hardness difference between grain and impurities, improve the efficiency of impurity screening, reduce the stickiness between grains, ensure the smooth flow of grain, the screen effectively screens out impurities in the grain, improves the purity of the grain, pushes the grain in layers, prevents excessive accumulation of grain, and reduces the damage of grain due to friction and extrusion.

Description

Technical Field

[0001] The present invention relates to the technical field of grain transportation, and in particular to a grain transportation device for agriculture. Background Art

[0002] An agricultural grain transfer device is usually designed to transfer grain from one place to another, and is commonly found in farmland, warehouses, processing plants and other places. The core task of this type of device is to transport grain efficiently and smoothly, and to ensure the quality and safety of grain during the transfer process. According to different functional requirements, the design of agricultural grain transfer devices can have various forms and technical characteristics.

[0003] At present, in the existing technology, grain is prone to accumulation during transportation, which will lead to poor transportation and increase transportation resistance, thereby reducing the transportation efficiency of the entire system. The accumulated grain is easy to get stuck in the transportation pipeline or equipment, causing the system to stagnate or unstable operation. At the same time, impurities mixed in the grain (such as dust, debris, pebbles, etc.) will affect the quality of the final grain. The hardness difference between impurities and grain particles is not obvious. It is difficult to effectively separate them by simple means during transportation. Extra time is required for screening, which increases the total time of grain processing and reduces the working efficiency of the equipment, resulting in poor practicality of the equipment. Summary of the invention

[0004] The purpose of the present invention is to solve the shortcoming of poor practicability of the equipment in the prior art and to propose an agricultural grain transporting device.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical scheme: an agricultural grain transfer device, comprising a base, a shell is fixedly installed on the top of the base, a feed hopper and a discharge hopper are respectively arranged at both ends of the shell, a cylindrical screen is arranged inside the shell, a screening layer is arranged between the screen and the shell, the screen is connected to a vibration component, a refrigeration mechanism is arranged inside the shell, a feeding mechanism is arranged inside the feed hopper, a mounting plate is fixedly installed on the side of the discharge hopper away from the shell, a motor is fixedly installed on the top of the mounting plate, a rotating shaft is fixedly connected to the output end of the motor, the rotating shaft passes through the discharge hopper, the shell and the feed hopper, a spiral hollow disk and a solid disk are fixedly connected to the outer wall of the rotating shaft, and spiral cold pipes are respectively fixedly connected to the ends of the hollow disk and the solid disk away from the rotating shaft, and there is a gap between the hollow disk and the solid disk, the spiral cold pipe connected to the solid disk is in contact with the screen, and the spiral cold pipe connected to the hollow disk is not in contact with the screen.

[0006] Preferably, a shell is fixedly mounted on the top of the base, a liquid storage tank is arranged inside the shell, and the liquid storage tank is filled with a propylene glycol aqueous solution.

[0007] Preferably, a liquid injection port is provided on the top of the shell, and the liquid injection port is communicated with the liquid storage tank. A liquid outlet is provided on the side wall of the shell, and the liquid outlet is communicated with the liquid storage tank.

[0008] Preferably, a heat absorbing groove is provided inside the shell, and the heat absorbing groove is located between the liquid storage tank and the screening layer, and fins are fixedly installed on the inner wall of the heat absorbing groove.

[0009] Preferably, a sieve plate is fixedly mounted on the inner wall of the discharge hopper, the sieve plate is located below the outer shell and corresponds to the port of the outer shell, and a discharge port is provided at the bottom of the discharge hopper.

[0010] Preferably, the end of the outer shell is fixedly connected to a connecting shell via a fixing plate, a lower leakage port is provided between the connecting shell and the outer shell, the screening layer is connected to the lower leakage port, and the connecting shell extends through the feed hopper and is fixedly connected to the feed hopper.

[0011] Preferably, the feeding mechanism includes a feeding shell, a rotating groove is provided at one end of the connecting shell away from the fixed plate, the feeding shell is rotatably connected to the rotating groove, the feeding shell is fixedly connected to the rotating shaft, the feeding shell is communicated with the interior of the outer shell, the feeding shell is located in the feeding hopper, and a feeding port is provided through the outer wall of the feeding shell.

[0012] Preferably, four scrapers are fixedly mounted on the outer wall of the feed shell, and the four scrapers are distributed in a circular array on the outer wall of the feed shell. There are four feed ports, and the four scrapers correspond to the four feed ports respectively, and the scrapers are arranged obliquely.

[0013] Preferably, the vibration assembly includes an annular vibrator fixedly mounted on a side of the discharge hopper close to the outer shell, the annular vibrator is fixedly connected to the outer shell, a telescopic groove is provided on the inner wall of the connecting shell, both ends of the screen are slidably connected with telescopic rings, the two telescopic rings are fixedly connected to the annular vibrator and the telescopic groove, respectively, telescopic columns are fixedly mounted on the side walls of the annular vibrator and the telescopic groove, and the telescopic ends of the telescopic columns are fixedly connected to the screen.

[0014] Preferably, the refrigeration mechanism includes a refrigerator arranged on the side of the feed hopper away from the outer shell, and a spiral joint is provided on the side of the refrigerator close to the feed hopper, and the spiral joint is rotatably connected to the rotating shaft. A refrigeration pipe is fixedly installed inside the rotating shaft, and the refrigeration pipe is connected to the refrigerator, and the two groups of spiral cold pipes are respectively fixedly connected to the refrigeration pipe with multiple connecting pipes, and the multiple connecting pipes are spirally distributed, and the number of connecting pipes gradually increases in the direction close to the feed hopper.

[0015] Compared with the prior art, the advantages of the present invention are:

[0016] 1. The present invention injects propylene glycol aqueous solution into the liquid storage tank, and utilizes its low freezing point and good heat conduction performance to keep the internal temperature of the shell between 0 and 5°C, which not only helps to increase the hardness difference between grains and impurities and improve the impurity screening efficiency, but also reduces the stickiness between grains, prevents blockage, and ensures the smooth flow of grains. At the same time, the cooling effect of the propylene glycol aqueous solution is evenly distributed, avoiding the occurrence of local overcooling or overheating.

[0017] 2. The present invention ensures the uniformity and stability of the cooling effect by arranging devices such as spiral cooling tubes and refrigeration tubes. At the same time, the heat absorption groove and the fins inside it effectively absorb the heat energy generated by the movement of the screen, prevent the excessive increase of the internal temperature of the shell, and keep the internal temperature of the equipment constant. The number of connecting pipes gradually decreases with the flow direction of the grain, and the number is the largest in the feeding shell area, ensuring that the grain can be quickly cooled to the required temperature after entering the feeding shell, thereby improving the grain processing efficiency, while ensuring that the quality of the grain is not damaged, and avoiding excessive cooling due to too dense pipes.

[0018] 3. The present invention utilizes a motor to drive the rotating shaft to rotate, thereby driving the feed shell and the scraper thereon to rotate in the feed hopper, effectively scraping up the grain and feeding it into the feed shell. The grain in the feed shell is moved closer to the discharge hopper under the action of the hollow disk and the solid disk, thereby improving the grain transportation efficiency and ensuring the uniform distribution and smooth flow of the grain during the transportation process. The inclined design of the scraper helps to improve the grain transportation efficiency, reduce repeated leakage of grain, and avoid inefficient transportation.

[0019] 4. The present invention effectively screens out impurities in grains by setting a screen, thereby improving the purity of the grains. The annular vibrator and the telescopic column cooperate with each other to make the screen reciprocate, which effectively promotes the distribution and screening process of materials on the screen surface, not only improving the screening efficiency, but also effectively preventing material blockage, ensuring continuous and stable processing.

[0020] 5. The present invention pushes the grains in layers by arranging hollow plates and solid plates, thereby reducing friction and extrusion of the grains during transportation, helping to reduce grain breakage, and preventing excessive accumulation of grains and reducing the risk of blockage. The gap between the hollow plates and the screen provides a buffer space that can accommodate excess grain when the grain flow suddenly increases or the particles are larger, preventing grain from accumulating in the pipeline and causing blockage. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a side structural schematic diagram of an agricultural grain transport device proposed by the present invention;

[0022] Figure 2 This is a schematic diagram of the structure of the feed shell and the scraper of the agricultural grain transfer device proposed by the present invention cooperating with each other;

[0023] Figure 3 for Figure 2 The enlarged structural diagram at A in the middle;

[0024] Figure 4 This is a schematic diagram of the structure of the refrigerator and the spiral joint of an agricultural grain transport device proposed by the present invention cooperating with each other;

[0025] Figure 5 for Figure 4 Enlarged structural diagram at B in the middle.

[0026] In the figure: 1 shell, 2 base, 3 feed hopper, 4 discharge hopper, 5 sieve plate, 6 motor, 7 annular vibrator, 8 liquid storage tank, 9 liquid injection port, 10 liquid outlet, 11 heat absorption tank, 12 fins, 13 fixing plate, 14 connecting shell, 15 screen, 16 screening layer, 17 lower leakage port, 18 telescopic column, 19 telescopic ring, 20 telescopic slot, 21 rotating shaft, 22 refrigerator, 23 spiral cooling pipe, 24 hollow plate, 25 solid plate, 26 spiral joint, 27 rotating slot, 28 feed shell, 29 scraper. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0028] Reference Figures 1 to 5 A grain transport device for agriculture includes a base 2, a shell 1 is fixedly mounted on the top of the base 2, a liquid storage tank 8 is arranged inside the shell 1, a liquid injection port 9 is arranged on the top of the shell 1, the liquid injection port 9 is communicated with the liquid storage tank 8, a propylene glycol aqueous solution with a concentration between 34% and 40% is injected into the liquid storage tank 8 through the liquid injection port 9, a liquid outlet 10 is arranged on the side wall of the shell 1, the liquid outlet 10 is communicated with the liquid storage tank 8, and the solution in the liquid storage tank 8 is discharged through the liquid outlet 10. By injecting the propylene glycol aqueous solution into the liquid storage tank 8, the temperature inside the shell 1 can be effectively reduced and maintained between 0 and 5°C by utilizing its cooling effect. The propylene glycol aqueous solution is a common low-temperature coolant. Its low freezing point and good thermal conductivity enable it to remain liquid at lower temperatures, thereby providing a continuous cooling effect. Through this liquid cooling method, the cooling effect can be distributed more evenly. The end of the outer shell 1 is fixedly connected to the connecting shell 14 through a fixing plate 13, and a lower leakage port 17 is provided between the connecting shell 14 and the outer shell 1. A cylindrical screen 15 is provided inside the outer shell 1, and a screening layer 16 is provided between the screen 15 and the outer shell 1. The screening layer 16 is connected to the lower leakage port 17. The grain in the outer shell 1 is removed from impurities through the screen 15, and the impurities enter the screening layer 16 and are discharged from the lower leakage port 17. One end of the outer shell 1 where the lower leakage port 17 is provided is tilted downward, which is conducive to the rapid discharge of impurities.

[0029] The connecting shell 14 is communicated with the inside of the outer shell 1, and a feed hopper 3 is provided at the end of the outer shell 1. The connecting shell 14 extends through the feed hopper 3 and is fixedly connected to the feed hopper 3. A rotating groove 27 is provided at one end of the connecting shell 14 away from the fixed plate 13. The rotating groove 27 is rotatably connected to a feed shell 28. The feed shell 28 is communicated with the inside of the connecting shell 14. The feed shell 28 is located in the feed hopper 3. Four scrapers 29 are fixedly installed on the outer wall of the feed shell 28. The four scrapers 29 are distributed in a circumferential array on the outer wall of the feed shell 28. The outer wall of the material shell 28 is penetrated with four material inlets, and four scrapers 29 correspond to the four material inlets respectively, and the scrapers 29 are inclined. The end of the shell 1 away from the feed hopper 3 is provided with a discharge hopper 4, the shell 1 is connected to the inside of the discharge hopper 4, and the side of the discharge hopper 4 away from the shell 1 is fixedly installed with a mounting plate, and the top of the mounting plate is fixedly installed with a motor 6, and the output end of the motor 6 is fixedly connected with a rotating shaft 21, and the rotating shaft 21 passes through the discharge hopper 4, the shell 1, and the material shell 28, and the rotating shaft 21 is fixed to the material shell 28. The rotating shaft 21 drives the feed shell 28 to rotate along the inner wall of the rotating groove 27, and the feed shell 28 drives the four scrapers 29 to rotate and scrape the grain, so that the grain enters the feed shell 28 from the feed inlet. The outer wall of the rotating shaft 21 is fixedly connected with a spiral hollow disk 24 and a solid disk 25. The ends of the hollow disk 24 and the solid disk 25 away from the rotating shaft 21 are respectively fixedly connected with the spiral cooling pipe 23. There is a gap between the hollow disk 24 and the solid disk 25. The spiral cooling pipe 23 connected to the solid disk 25 is connected to the screen 15. The spiral cooling tube 23 connected to the hollow disk 24 does not contact the screen 15, the rotating shaft 21 rotates, and the grain in the feed shell 28 approaches the discharge hopper 4 under the action of the hollow disk 24 and the solid disk 25. The scraper 29 can effectively scrape the grain from the feed hopper 3 into the feed shell 28 evenly, which helps to improve the grain transportation efficiency, prevent blockage, and ensure the continuous transportation of grain. The feed shell 28 rotates, driving the scraper 29 to continuously stir the grain, ensuring that the grain is evenly distributed and flows smoothly during the transportation process.

[0030] A refrigerator 22 is provided on the side of the feed hopper 3 away from the shell 1, and a spiral joint 26 is provided on the side of the refrigerator 22 close to the feed hopper 3. The spiral joint 26 is rotatably connected to the rotating shaft 21. A refrigeration pipe is fixedly installed inside the rotating shaft 21, and the refrigeration pipe is connected to the refrigerator 22. Two groups of spiral cold pipes 23 are respectively fixedly connected to the refrigeration pipe with multiple connecting pipes. The multiple connecting pipes are spirally distributed, and the number of connecting pipes gradually increases along the direction close to the feed shell 28. The internal temperature of the shell 1 is maintained between 0-5°C. Low temperature will make moisture crystallize more easily, thereby causing the grain to become harder, which helps to increase the hardness difference between the grain and impurities, so that during the processing, the separation of impurities (such as dust, debris, etc.) and grain is more obvious and easy. At the same time, low temperature will also reduce the stickiness between grains, so that it can be better transported and reduce the possibility of stagnation and blockage. For some grains (such as wheat), low temperature will make wheat awns more fragile. The brittleness of wheat awns can make it easier to separate from the wheat grains themselves, thereby improving the efficiency of threshing and cleaning. The cooperation of the spiral cold pipe 23 and the refrigeration pipe ensures uniform cooling effect, reduces temperature stability, and improves processing efficiency.

[0031] An annular vibrator 7 is fixedly installed on one side of the discharge hopper 4 close to the outer shell 1. The annular vibrator 7 is fixedly connected to the outer shell 1. A telescopic groove 20 is provided on the inner wall of the connecting shell 14. Telescopic rings 19 are slidably connected to the two ends of the screen 15. The two telescopic rings 19 are fixedly connected to the annular vibrator 7 and the telescopic groove 20 respectively. Telescopic columns 18 are fixedly installed in the side walls and telescopic grooves 20 of the annular vibrator 7 respectively, and the telescopic ends of the telescopic columns 18 are fixedly connected to the screen 15. A reciprocating motor is provided in the annular vibrator 7. The reciprocating motor is used to drive the telescopic column 18 on the annular vibrator 7 to perform telescopic movement. Under the action of the telescopic column 18, the screen 15 reciprocates along the inner walls of the two telescopic rings 19, which effectively promotes the distribution and screening process of the material on the surface of the screen 15, and helps to improve the screening efficiency. The vibration effect can effectively prevent material blockage and ensure continuous and stable processing. A heat absorption groove 11 is arranged inside the shell 1. The heat absorption groove 11 is located between the liquid storage tank 8 and the screen 15. Fins 12 are fixedly installed on the inner wall of the heat absorption groove 11. The screen 15 will do work when it moves, and heat energy will be generated at this time. The fins 12 in the heat absorption groove 11 absorb heat, thereby effectively avoiding excessive temperature increase in the shell 1 and ensuring that the internal temperature of the equipment is always maintained between 0-5°C. A sieve plate 5 is fixedly installed on the inner wall of the discharge hopper 4. The sieve plate 5 is located below the shell 1 and corresponds to the port of the shell 1. A discharge port is arranged at the bottom of the discharge hopper 4. The grain enters the discharge hopper 4 from the shell 1. Impurities pass through the sieve plate 5 during the falling process. The grain falls to the collection box along the inclined surface of the sieve plate 5, completing the last screening and impurity removal.

[0032] In the present invention, before starting the device, the liquid injection port 9 is opened first, and a propylene glycol aqueous solution with a concentration of 34%-40% is poured into the liquid storage tank 8. The propylene glycol aqueous solution is a cooling medium, which makes the internal temperature of the shell 1 drop rapidly. Due to the concentration of the propylene glycol aqueous solution, the internal temperature will be controlled between 0 and 5°C. The grain to be transported is poured into the feed hopper 3, and then the device is started.

[0033] The motor 6 is started, driving the rotating shaft 21 to rotate. A spiral joint 26 is provided between the rotating shaft 21 and the refrigerator 22 to facilitate the rotation of the rotating shaft 21. A refrigeration pipe is provided inside the rotating shaft 21, and its function is to connect the refrigerator 22 and the spiral cooling pipe 23. The existence of the spiral joint 26 allows the refrigeration pipe to rotate with the rotating shaft 21, and will not cause any problems with the refrigeration of the refrigerator 22.

[0034] The rotating shaft 21 drives the feed shell 28 to rotate, and the feed shell 28 rotates in the rotating groove 27. The rotating groove 27 is opened in the connecting shell 14, and the connecting shell 14 is fixed by the fixing plate 13 and the outer shell 1. A scraper 29 is arranged on the outside of the feed shell 28. When the feed shell 28 rotates, the scraper 29 will scrape up the grain inside the feed hopper 3 and make it enter from the feed port of the feed shell 28. The feed shell 28 is in the feed hopper 3, and its rotation is to make the grain flow and prevent blockage. Because the rotating shaft 21 drives the spiral cooling tube 23 and the feed shell 28 to rotate together, the scraper 29 is inclined outward, so that not too much grain will leak repeatedly during rotation, resulting in reduced transportation efficiency.

[0035] A hollow plate 24 and a solid plate 25 are respectively installed on the two groups of spiral cooling tubes 23. When the feeding shell 28 scrapes the grain into the interior, the hollow plate 24 and the solid plate 25 push the grain. When entering the interior of the outer shell 1, the temperature will be maintained between 0-5°C. The physical properties of the grain will change in a low temperature environment of 0-5°C. The grain particles will become harder, making the hardness difference between the grain and impurities more obvious. At the same time, the low temperature will reduce the adhesion between the grains, making it easier to transport. For some grains, such as wheat, the awns will become fragile in a low temperature environment, making it easier to separate from the grain itself.

[0036] During transportation, the annular vibrator 7 is started. A reciprocating motor is installed in the annular vibrator 7. The reciprocating motor drives the telescopic column 18 on the annular vibrator 7 to reciprocate back and forth, thereby driving the screen 15 to sieve back and forth to remove impurities in the grain. The impurities fall into the screening layer 16, and the lower leak 17 discharges the impurities. The screen 15 will do work when it moves, and some heat energy will be generated at this time. The heat absorption groove 11 and the internal fins 12 can absorb the heat well, so that the internal temperature is always maintained between 0-5°C.

[0037] The spiral cooling tube 23 on the hollow plate 24 does not fit the screen 15, creating a buffer space for the grain. During the transportation process, when the grain flow rate suddenly increases or the grain particles are large and irregular in shape, this buffer space can accommodate excess grain to prevent excessive accumulation of grain in the pipeline and cause blockage. Since there is a gap between the hollow plate 24 and the inner wall of the screen 15, the extrusion and friction of the grain in this layer are relatively small, especially for some easily broken grains, such as rice. This design can reduce the interaction force between grain particles and between grain and pipelines, and reduce the wear of grain during transportation.

[0038] The function of the hollow plate 24 is to preliminarily screen the grain. At the same time, it can preliminarily concentrate the grain and guide it to the solid plate 25. Within the effective conveying range of the first layer of spiral cooling pipe 23 and the second layer of solid spiral, the grain will be layered between the hollow plate 24 and the solid plate 25. The hollow plate 24 can make the grain loosely distributed, and the solid plate 25 provides a stronger thrust. This layered structure can effectively prevent the grain from clogging the pipeline due to excessive accumulation during transportation, thereby helping to improve transportation efficiency.

[0039] The closer to the feed shell 28, the more connecting pipes there are, and the closer to the discharge hopper 4, the fewer connecting pipes there are. The temperature of the refrigerator 22 is adjusted at 0-5°C, because the grain needs to be cooled quickly after entering the feed shell 28. The overall design function is to keep the temperature of the grain between 0-5°C to avoid the densely distributed spiral cooling tubes 23 that cause the temperature to continue to decrease. Below 0°C, the molecular structure of the grain will be destroyed.

[0040] After being transported, the grain will flow out from the discharge hopper 4 , at which time the sieve plate 5 will be used. The sieve plate 5 will perform a final screening to better remove impurities, and the grain will flow out along the guidance of the sieve plate 5 .

[0041] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An agricultural grain transport device, comprising a base (2), characterized in that: A housing (1) is fixedly mounted on the top of the base (2); a feed hopper (3) and a discharge hopper (4) are respectively arranged at both ends of the housing (1); a cylindrical screen (15) is arranged inside the housing (1); a screening layer (16) is arranged between the screen (15) and the housing (1); the screen (15) is connected to a vibration component; a refrigeration mechanism is arranged inside the housing (1); a feeding mechanism is arranged inside the feed hopper (3); a mounting plate is fixedly mounted on a side of the discharge hopper (4) away from the housing (1); a motor (6) is fixedly mounted on the top of the mounting plate; and an output end of the motor (6) is fixedly mounted. A rotating shaft (21) is fixedly connected, the rotating shaft (21) passes through the discharge hopper (4), the housing (1) and the feed hopper (3), the outer wall of the rotating shaft (21) is fixedly connected with a spiral hollow disk (24) and a solid disk (25), one end of the hollow disk (24) and the solid disk (25) away from the rotating shaft (21) is respectively fixedly connected to a spiral cooling tube (23), there is a gap between the hollow disk (24) and the solid disk (25), the spiral cooling tube (23) connected to the solid disk (25) is in contact with the screen (15), and the spiral cooling tube (23) connected to the hollow disk (24) is not in contact with the screen (15); The end of the outer shell (1) is fixedly connected to a connecting shell (14) via a fixing plate (13); a lower leakage port (17) is provided between the connecting shell (14) and the outer shell (1); the screening layer (16) is in communication with the lower leakage port (17); the connecting shell (14) extends through the feed hopper (3) and is fixedly connected to the feed hopper (3); The feeding mechanism comprises a feeding shell (28), a rotating groove (27) is provided at one end of the connecting shell (14) away from the fixed plate (13), the feeding shell (28) is rotatably connected to the rotating groove (27), the feeding shell (28) is fixedly connected to the rotating shaft (21), the feeding shell (28) is communicated with the inside of the outer shell (1), the feeding shell (28) is located in the feeding hopper (3), and a feeding port is provided through the outer wall of the feeding shell (28); The refrigeration mechanism comprises a refrigerator (22) arranged on a side of the feed hopper (3) away from the housing (1); a spiral joint (26) is arranged on a side of the refrigerator (22) close to the feed hopper (3); the spiral joint (26) is rotatably connected to the rotating shaft (21); a refrigeration pipe is fixedly installed inside the rotating shaft (21), and the refrigeration pipe is connected to the refrigerator (22); two groups of spiral cooling pipes (23) are respectively fixedly connected to the refrigeration pipe by a plurality of connecting pipes; the plurality of connecting pipes are spirally distributed, and the number of the connecting pipes gradually increases in a direction close to the feed hopper (3).

2. The agricultural grain transport device according to claim 1, characterized in that: A housing (1) is fixedly mounted on the top of the base (2); a liquid storage tank (8) is provided inside the housing (1); and the liquid storage tank (8) is filled with a propylene glycol aqueous solution.

3. The agricultural grain transport device according to claim 2, characterized in that: The top of the shell (1) is provided with a liquid injection port (9), the liquid injection port (9) being in communication with the liquid storage tank (8), and the side wall of the shell (1) is provided with a liquid outlet (10), the liquid outlet (10) being in communication with the liquid storage tank (8).

4. The agricultural grain transport device according to claim 2, characterized in that: A heat absorbing groove (11) is provided inside the housing (1), the heat absorbing groove (11) is located between the liquid storage tank (8) and the screening layer (16), and a fin (12) is fixedly mounted on the inner wall of the heat absorbing groove (11).

5. The agricultural grain transport device according to claim 1, characterized in that: A sieve plate (5) is fixedly mounted on the inner wall of the discharge hopper (4); the sieve plate (5) is located below the outer shell (1) and corresponds to a port of the outer shell (1); and a discharge port is provided at the bottom of the discharge hopper (4).

6. The agricultural grain transport device according to claim 1, characterized in that: Four scrapers (29) are fixedly mounted on the outer wall of the feed shell (28). The four scrapers (29) are distributed in a circular array on the outer wall of the feed shell (28). There are four feed openings. The four scrapers (29) correspond to the four feed openings respectively, and the scrapers (29) are arranged at an angle.

7. The agricultural grain transport device according to claim 1, characterized in that: The vibration assembly comprises an annular vibrator (7) fixedly mounted on a side of the discharge hopper (4) close to the outer shell (1), the annular vibrator (7) being fixedly connected to the outer shell (1), the inner wall of the connecting shell (14) being provided with a telescopic groove (20), the two ends of the screen (15) being slidably connected with telescopic rings (19), the two telescopic rings (19) being fixedly connected to the annular vibrator (7) and the telescopic groove (20), respectively, the side wall of the annular vibrator (7) and the telescopic groove (20) being fixedly mounted with telescopic columns (18), and the telescopic ends of the telescopic columns (18) being fixedly connected to the screen (15).

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