Drum-type agricultural dryer

Abstract

The invention relates to the technical field of agricultural instruments, in particular to a drum-type agricultural dryer which comprises a connecting base, a rotary drying structure is connected to the end face of the connecting base, a hot air circulation structure is connected to the side wall of the rotary drying structure, and a controller is connected to the end face of the connecting base. The rotary drying structure is arranged in the drum-type agricultural dryer, so that a driving motor in the rotary drying structure can drive the drying drum, the movable stirring blades and the rotary stirring blades to rotate through a transmission structure, and the rotary drying structure is arranged on the end face of the connecting base and located below the rotary drying structure. And when the movable stirring blades and the rotary stirring blades rotate, the movable stirring blades can be driven to move in a reciprocating mode, the rotary stirring blades can be driven to swing, and then the materials in the drying rotary drum are stirred, so that the materials can be heated more uniformly when being dried, and the materials are dried more sufficiently.

Description

Technical Field

[0001] This invention relates to the field of agricultural machinery technology, specifically a drum-type agricultural dryer. Background Technology

[0002] Agricultural dryers are a type of traditional drying equipment. They are reliable in operation, highly flexible in operation, adaptable, and have a large processing capacity. They are widely used in grain, food, sand, sugar and other fields. In the center of an agricultural dryer, there is no need to add a dispersing mechanism. The wet material entering the drying cylinder is repeatedly lifted and thrown down by the lifting plates on the cylinder wall. During the falling process, it is broken into fine particles by the dispersing device, which greatly increases the surface area and allows for full contact with hot air for drying.

[0003] Existing agricultural dryers require manual turning, stirring, and scattering of materials during the drying process. This results in uneven heating of the materials, leading to insufficient drying. Furthermore, the lack of a heat circulation structure during drying causes heat loss and waste of resources. To address these issues, a drum-type agricultural dryer is needed. Summary of the Invention

[0004] The purpose of this invention is to provide a drum-type agricultural dryer to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A drum-type agricultural dryer includes a connecting base, a rotating drying structure connected to the end face of the connecting base, a hot air circulation structure connected to the side wall of the rotating drying structure, a controller connected to the end face of the connecting base, a heater connected to the end face of the connecting base and below the rotating drying structure, and a material guide trough connected to the bottom of the connecting base via a connecting seat. The hot air circulation structure includes a circulation pipe, which is connected to the end face of the connecting base via a connecting seat. One end of the circulation pipe is connected to a connecting shell. The side walls of the circulation pipe and the connecting shell are connected to a limiting shell via pipes. The inner cavity of the circulation pipe is provided with absorbent cotton. A rotating motor is connected to the end face of the connecting shell via a connecting seat. The drive end of the rotating motor is connected to a drive rod via a coupling. One end of the drive rod is meshed with a driven bevel gear via a drive bevel gear. A driven rod is connected to the center of the driven bevel gear. Multiple sets of air guide plates are connected to the side wall of the driven rod via connecting rollers.

[0006] As a preferred embodiment of the present invention, the rotating drying structure includes a drive motor, the drive motor is connected to the end face of the connecting base through a connecting seat, the drive end of the drive motor is connected to a drive rod through a coupling, a drive gear is connected to the side wall of the drive rod, a driven gear is meshed on the side wall of the drive gear, and a drying drum is connected to the center of the driven gear. Both ends of the drying drum are connected to limit housings. A feed funnel is connected to the limit housing on the right side. Limit rollers are provided on the side wall of the drying drum. The limit rollers are connected to the end face of the connecting base through a connecting plate. One end of the drive rod is connected to a rotating plate.

[0007] As a preferred embodiment of the present invention, one end of the rotating plate is connected to a connecting plate, one end of the connecting plate is connected to a connecting plate, one end of the connecting plate and located in the inner cavity of the drying drum are connected to a rotating rod, a rotating connecting plate and a connecting connecting plate are connected to the side wall of the rotating rod, and a connecting rod and a connecting rod are connected to the rotating connecting plate. One end of the connecting rod and the connecting shaft are respectively connected to a connecting bevel gear and a connecting bevel gear. A fixed bevel gear is meshed on the side wall of the connecting bevel gear and the connecting bevel gear. The fixed bevel gear is connected to the side wall of the inner cavity of the limiting housing through a connecting sleeve. The other end of the connecting rod is connected to a connecting turntable.

[0008] As a preferred embodiment of the present invention, a connecting rod is connected to the side wall of the connecting turntable, the other end of the connecting rod is connected to a driven turntable, a driven rotating shaft is connected to the center of the driven turntable, a movable connecting rod is connected to the side wall of the connecting rod, a limiting slide rail is connected to the movable connecting rod, the limiting slide rail is connected to the side wall of the connecting plate, a movable stirring blade is connected to the side wall of the movable connecting rod, and a fixed connecting plate is connected between the rotating connecting plate and the connecting plate; Multiple sets of connecting shafts are connected to the side wall of the fixed connecting plate. One end of the connecting shaft is connected to a swing connecting plate. Connecting rods are alternately connected to the side wall of the swing connecting plate. The other end of the connecting rod is connected to a connecting turntable. Connecting rods are connected to the side wall of the connecting turntable. The other end of the connecting rod is connected to the side wall of the swing connecting plate. Rotating stirring blades are symmetrically connected to the side wall of the swing connecting plate.

[0009] In a preferred embodiment of the present invention, the heater is connected to the controller via a wire in an electrical connection manner, the drive motor is connected to the controller via a wire in an electrical connection manner, and the drive rod is connected to the end face of the connecting base via a bearing seat, wherein the drive rod and the bearing seat are connected in a rotatable connection manner. The drying drum has a discharge port on its side wall, and a manual valve is provided on the discharge port. The limiting housing has an annular groove corresponding to the drying drum. The drying drum and the annular groove are connected by a sliding connection. The feeding funnel is provided with a manual valve.

[0010] As a preferred embodiment of the present invention, the rotating plate and the connecting plate are rotatably connected by a rotating shaft, the connecting plate and the connecting plate are rotatably connected by a rotating shaft, and the rotating rod is connected to the limiting housing through a bearing seat, wherein the rotating rod and the bearing seat are connected by a rotating connection. The connecting rod is connected to the rotating plate via a bearing seat, wherein the connection between the connecting rod and the bearing seat is a rotatable connection.

[0011] In a preferred embodiment of the present invention, the connecting turntable and the connecting rod are rotatably connected by a rotating shaft, the connecting rod and the driven turntable are rotatably connected by a rotating shaft, and the driven rotating shaft is connected to the rotating connecting plate through a bearing seat, wherein the connection between the driven rotating shaft and the bearing seat is a rotatable connection.

[0012] As a preferred embodiment of the present invention, a sliding groove is provided on the limiting slide rail and corresponding to the moving connecting rod, wherein the moving connecting rod and the sliding groove are connected in a sliding connection manner, and the connecting shaft is connected to the fixed connecting plate through a bearing seat, wherein the connecting shaft and the bearing seat are connected in a rotating connection manner.

[0013] In a preferred embodiment of the present invention, the swing connecting plate and the connecting rod are rotatably connected by a rotating shaft, the connecting turntable and the connecting rod are rotatably connected by a rotating shaft, and the connecting rod and the swing connecting plate are rotatably connected by a rotating shaft.

[0014] In a preferred embodiment of the present invention, the rotating motor is connected to the controller via a wire in an electrical connection manner, the driving rod is connected to the connecting housing via a bearing seat, wherein the connection between the driving rod and the bearing seat is a rotatable connection; the driven rod is connected to the connecting housing via a bearing seat, wherein the connection between the driven rod and the bearing seat is a rotatable connection.

[0015] Compared with the prior art, the present invention has the following beneficial effects: In this invention, a rotating drying structure is set in a drum-type agricultural dryer. The drive motor in the rotating drying structure can drive the drying drum, the moving stirring blade, and the rotating stirring blade to rotate through the transmission structure. When the moving stirring blade and the rotating stirring blade rotate, the moving stirring blade can also move back and forth and the rotating stirring blade can be oscillating, thereby stirring the material in the drying drum. This makes the material more evenly heated during drying and allows the material to dry more thoroughly.

[0016] In this invention, a hot air circulation structure is set in the drum-type agricultural dryer. The rotating motor in the hot air circulation structure can promote the circulation of hot air in the drying drum and circulation pipe through the transmission structure. At the same time, when the hot air passes through the absorbent cotton, it can absorb the water vapor, thereby improving the utilization rate of hot air and saving resources.

[0017] In this invention, by setting a rotating drying structure and a hot air circulation structure in a drum-type agricultural dryer, the drive motor and conveyor transmission structure in the rotating drying structure and the hot air circulation structure can make the material in the drying drum more evenly heated. At the same time, the circulation of hot air can improve the drying efficiency of the material, making the device more efficient in drying the material. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the isolateral structure of the present invention; Figure 2 for Figure 1 A schematic diagram of the cross-sectional structure; Figure 3 This is a schematic diagram of the rotating drying structure of the present invention; Figure 4 for Figure 3 A schematic diagram of the cross-sectional structure; Figure 5 for Figure 3 Partial structural diagram; Figure 6 for Figure 4 Partial structural diagram; Figure 7 This is a schematic diagram of the hot gas circulation structure of the present invention; Figure 8 For the present invention Figure 7 A partial structural diagram.

[0019] In the diagram: 1. Connecting base; 2. Rotating drying structure; 3. Hot air circulation structure; 4. Controller; 5. Heater; 6. Guide chute; 201. Drive motor; 202. Drive rod; 203. Drive gear; 204. Driven gear; 205. Drying drum; 206. Limiting housing; 207. Feed funnel; 208. Limiting roller; 209. Rotating plate; 210. Connecting plate; 211. Connecting plate; 212. Rotating rod; 213. Rotating connecting plate; 214. Connecting connecting plate; 215. Connecting rotating rod; 216. Connecting rotating rod; 217. Connecting bevel gear; 218. Connecting bevel gear; 219. Fixed... 220. Fixed bevel gear; 221. Connecting turntable; 222. Connecting link; 223. Driven turntable; 224. Driven rotating shaft; 225. Moving link; 226. Limiting slide rail; 227. Moving stirring blade; 228. Fixed connecting plate; 229. Connecting shaft; 230. Swinging connecting plate; 231. Connecting pull rod; 232. Connecting pull rod; 233. Rotating stirring blade; 301. Circulation pipe; 302. Connecting housing; 303. Absorbent cotton; 304. Rotating motor; 305. Drive rotating rod; 306. Drive bevel gear; 307. Driven bevel gear; 308. Driven rotating rod; 309. Air guide plate. Detailed Implementation

[0020] The technical solutions of the present invention will be clearly and completely described below with reference to the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0021] For an example, please refer to... Figure 1-8 The present invention provides a technical solution: A drum-type agricultural dryer includes a connecting base 1, a rotating drying structure 2 connected to the end face of the connecting base 1, a hot air circulation structure 3 connected to the side wall of the rotating drying structure 2, a controller 4 connected to the end face of the connecting base 1, a heater 5 connected to the end face of the connecting base 1 and located below the rotating drying structure 2, and a guide trough 6 connected to the bottom of the connecting base 1 through a connecting seat. In this embodiment, reference Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5 and Figure 6The rotating drying structure 2 includes a drive motor 201, which is connected to the end face of the connecting base 1 via a connecting seat. The drive end of the drive motor 201 is connected to a drive rod 202 via a coupling. A drive gear 203 is connected to the side wall of the drive rod 202, and a driven gear 204 is meshed on the side wall of the drive gear 203. A drying drum 205 is connected to the center of the driven gear 204. Both ends of the drying drum 205 are connected to limit housings 206. A feed funnel 207 is connected to the right limit housing 206. Limit rollers 208 are provided on the side wall of the drying drum 205. A connecting plate is connected to the end face of the connecting base 1. One end of the drive rod 202 is connected to a rotating plate 209, one end of the rotating plate 209 is connected to a connecting plate 210, one end of the connecting plate 210 is connected to a connecting plate 211, and one end of the connecting plate 211, located in the inner cavity of the drying drum 205, is connected to a rotating rod 212. A rotating connecting plate 213 and a connecting connecting plate 214 are connected to the side wall of the rotating rod 212. A connecting rotating rod 215 and a connecting rotating rod 216 are connected to the rotating connecting plate 213. One end of the connecting rotating rod 215 and the connecting rotating rod 216 is respectively connected to a connecting bevel gear 217 and a connecting bevel gear 218. A fixed bevel gear 219 meshes with the side walls of the connecting bevel gear 217 and the connecting bevel gear 218. The fixed bevel gear 219 is connected to the side wall of the inner cavity of the limiting housing 206 through a connecting sleeve. The other end of the connecting rod 215 is connected to the connecting turntable 220. A connecting rod 221 is connected to the side wall of the connecting turntable 220. The other end of the connecting rod 221 is connected to the driven turntable 222. A driven rotating shaft 223 is connected to the center of the driven turntable 222. A moving connecting rod 224 is connected to the side wall of the connecting rod 221. A limiting slide rail 225 is connected to the moving connecting rod 224. The limiting slide rail 225 is connected to the side wall of the connecting plate 214. Above, a movable stirring blade 226 is connected to the side wall of the movable connecting rod 224. A fixed connecting plate 227 is connected between the rotating connecting plate 213 and the connecting connecting plate 214. Multiple sets of connecting rotating shafts 228 are connected to the side wall of the fixed connecting plate 227. One end of the connecting rotating shaft 228 is connected to a swing connecting plate 229. Connecting rods 230 are alternately connected to the side wall of the swing connecting plate 229. The other end of the connecting rotating rod 216 is connected to a connecting turntable 231. Connecting rods 232 are connected to the side wall of the connecting turntable 231. The other end of the connecting rods 232 is connected to the side wall of the swing connecting plate 229. Rotating stirring blades 233 are symmetrically connected to the side wall of the swing connecting plate 229. Based on the above structure and the connection relationship of the above structure, the controller 4 controls the drive motor 201 to run. When the drive end of the drive motor 201 rotates, it sequentially drives the drive rod 202, drive gear 203, driven gear 204 and drying drum 205 to rotate. When the drive rod 202 rotates, it drives the rotating plate 209 to rotate. When the rotating plate 209 rotates, it drives the rotating rod 212 to swing through the connecting plate 210 and connecting plate 211. When the rotating rod 212 swings, it drives the rotating connecting plate 213, connecting plate 214, connecting rod 215, connecting rod 216, connecting bevel gear 217 and connecting bevel gear 218 to rotate. When the connecting bevel gear 217 and connecting bevel gear 218 rotate, the rotation of the rotating rod 212 and connecting bevel gear 215 and connecting plate 216 is completed. When 218 rotates, under the action of connecting bevel gear 217, connecting bevel gear 218 and fixed bevel gear 219, it drives connecting rod 215 and connecting turntable 220 to rotate. When connecting turntable 220 rotates, it drives moving connecting rod 224 and moving stirring blade 226 to move back and forth through connecting rod 221, driven turntable 222 and driven shaft 223. When connecting bevel gear 217 and connecting bevel gear 218 rotate, under the action of connecting bevel gear 217, connecting bevel gear 218 and fixed bevel gear 219, it drives connecting turntable 231 to rotate. When connecting turntable 231 rotates, it drives swing connecting plate 229 and rotating stirring blade 233 to swing around connecting shaft 228 as the axis through connecting pull rod 232. Furthermore, the heater 5 is connected to the controller 4 via a wire in an electrical connection manner, and the drive motor 201 is connected to the controller 4 via a wire in an electrical connection manner, so that the operation of the heater 5 and the drive motor 201 can be controlled by the controller 4. Furthermore, the drive rod 202 is connected to the end face of the connecting base 1 through a bearing seat. The drive rod 202 and the bearing seat are connected by rotation. A discharge port is provided on the side wall of the drying drum 205. A manual valve is provided on the discharge port. An annular groove is provided on the limiting housing 206 and corresponding to the drying drum 205. The drying drum 205 and the annular groove are connected by sliding connection. A manual valve is provided on the feeding funnel 207. When the drive rod 202 rotates, it can drive the drying drum 205 to rotate. Furthermore, the rotating plate 209 and the connecting plate 210 are rotatably connected via a rotating shaft, and the connecting plate 210 and the connecting plate 211 are rotatably connected via a rotating shaft. The rotating rod 212 is connected to the limiting housing 206 via a bearing seat, wherein the connection between the rotating rod 212 and the bearing seat is a rotatable connection. The connecting rod 215 is connected to the rotating connecting plate 213 via a bearing seat, wherein the connection between the connecting rod 215 and the bearing seat is a rotatable connection. The connecting rod 216 is connected to the rotating connecting plate 213 via a bearing seat, wherein the connecting rod 216 and the bearing... The connection method of the seat is a rotating connection. The connecting turntable 220 and the connecting rod 221 are rotatably connected by a rotating shaft. The connecting rod 221 and the driven turntable 222 are rotatably connected by a rotating shaft. The driven rotating shaft 223 is connected to the rotating connecting plate 213 through a bearing seat. The connection method between the driven rotating shaft 223 and the bearing seat is a rotating connection. The limiting slide rail 225 is provided with a sliding groove corresponding to the moving connecting rod 224. The connection method between the moving connecting rod 224 and the sliding groove is a sliding connection. When the rotating rod 212 rotates, it can drive the moving connecting rod 224 to move back and forth. Furthermore, the connecting shaft 228 is connected to the fixed connecting plate 227 via a bearing seat. The connection between the connecting shaft 228 and the bearing seat is a rotatable connection. The swing connecting plate 229 and the connecting rod 230 are rotatably connected via a rotating shaft. The connecting turntable 231 and the connecting rod 232 are rotatably connected via a rotating shaft. The connecting rod 232 and the swing connecting plate 229 are rotatably connected via a rotating shaft. When the connecting turntable 231 rotates, it can drive the swing connecting plate 229 to swing. In this embodiment, reference Figure 1 , Figure 2 , Figure 7 and Figure 8 The hot air circulation structure 3 includes a circulation pipe 301, which is connected to the end face of the connecting base 1 via a connecting seat. One end of the circulation pipe 301 is connected to a connecting housing 302. The side walls of the circulation pipe 301 and the connecting housing 302 are connected to the limiting housing 206 via pipes. An absorbent cotton 303 is provided in the inner cavity of the circulation pipe 301. A rotating motor 304 is connected to the end face of the connecting housing 302 via a connecting seat. The drive end of the rotating motor 304 is connected to a drive rod 305 via a coupling. One end of the drive rod 305 is meshed with a driven bevel gear 307 via a drive bevel gear 306. A driven rod 308 is connected to the center of the driven bevel gear 307. Multiple sets of air guide plates 309 are connected to the side wall of the driven rod 308 via connecting rollers. Based on the above structure and the connection relationship of the above structure, the controller 4 controls the operation of the rotating motor 304. When the drive end of the rotating motor 304 rotates, it sequentially drives the drive rod 305, the drive bevel gear 306, the driven bevel gear 307, the driven rod 308, the connecting roller and the multiple sets of air guide plates 309 to rotate. Furthermore, the rotary motor 304 is connected to the controller 4 via a wire in an electrical connection manner, and the operation of the rotary motor 304 can be controlled by the controller 4. Furthermore, the drive rod 305 is connected to the connecting housing 302 via a bearing seat, wherein the drive rod 305 and the bearing seat are connected by a rotatable connection. The driven rod 308 is connected to the connecting housing 302 via a bearing seat, wherein the driven rod 308 and the bearing seat are connected by a rotatable connection. When the drive rod 305 rotates, it can drive the air guide plate 309 to rotate.

[0022] The working process of this invention is as follows: When using the drum-type agricultural dryer, first connect the power supply to the device to put it into operation. The controller 4 controls the drive motor 201 to run. When the drive end of the drive motor 201 rotates, it drives the drive rod 202 to rotate. The drive rod 202 drives the drive gear 203 to rotate. The drive gear 203 drives the driven gear 204 to rotate. The driven gear 204 drives the drying drum 205 to rotate, thereby causing the material in the drying drum 205 to rotate. When the drive rod 202 rotates, it drives the rotating plate 209 to rotate. As the rotating plate 209 rotates, it drives the rotating rod 212 to swing via the connecting plate 210 and the connecting plate 211. When the rotating rod 212 swings, it drives the rotating connecting plate 213, connecting connecting plate 214, connecting rotating rod 215, connecting rotating rod 216, connecting bevel gear 217, and connecting bevel gear 218 to rotate. When the connecting bevel gear 217 and connecting bevel gear 218 rotate, under the action of the connecting bevel gear 217, connecting bevel gear 218, and fixed bevel gear 219, they drive the connecting rotating rod 215 and the connecting turntable 220 to rotate. When the disc 220 rotates, it drives the moving connecting rod 224 and the moving stirring blade 226 to move back and forth through the connecting rod 221, the driven turntable 222, and the driven rotating shaft 223. When the connecting bevel gear 217 and the connecting bevel gear 218 rotate, the connecting bevel gear 217, the connecting bevel gear 218 and the fixed bevel gear 219 drive the connecting turntable 231 to rotate. When the connecting turntable 231 rotates, it drives the swing connecting plate 229 and the rotating stirring blade 233 to swing around the connecting rotating shaft 228 as the axis through the connecting rod 232, thereby stirring the material in the drying drum 205 and making the material heat up more evenly. The controller 4 controls the operation of the rotating motor 304. When the drive end of the rotating motor 304 rotates, it sequentially drives the drive rod 305, drive bevel gear 306, driven bevel gear 307, driven rod 308, connecting roller and multiple sets of air guide plates 309 to rotate, thereby circulating the hot air in the drying drum 205 and the circulation pipe 301. At the same time, when the hot air passes through the absorbent cotton 303, it can absorb the moisture.

[0023] The controller 4, heater 5, drive motor 201, manual valve, absorbent cotton 303, and rotary motor 304 used in this invention are all existing known devices and can be directly purchased and used on the market. Their structures, circuits, and control principles are all existing known technologies. Therefore, the structures, circuits, and control principles of the controller 4, heater 5, drive motor 201, manual valve, absorbent cotton 303, and rotary motor 304 will not be described in detail here. Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A drum-type agricultural dryer, comprising a connecting base (1), characterized in that: A rotating drying structure (2) is connected to the end face of the connecting base (1), a hot air circulation structure (3) is connected to the side wall of the rotating drying structure (2), a controller (4) is connected to the end face of the connecting base (1), a heater (5) is connected to the end face of the connecting base (1) and below the rotating drying structure (2), and a guide trough (6) is connected to the bottom of the connecting base (1) through a connecting seat. The hot air circulation structure (3) includes a circulation pipe (301), which is connected to the end face of the connecting base (1) via a connecting seat. One end of the circulation pipe (301) is connected to a connecting housing (302). The side walls of the circulation pipe (301) and the connecting housing (302) are connected to the limiting housing (206) via pipes. An absorbent cotton (303) is provided in the inner cavity of the circulation pipe (301). A rotating motor (304) is connected to the end face of the connecting housing (302) via a connecting seat. The drive end of the rotating motor (304) is connected to a drive rod (305) via a coupling. One end of the drive rod (305) is meshed with a driven bevel gear (307) via a drive bevel gear (306). A driven rod (308) is connected to the center of the driven bevel gear (307). Multiple sets of air guide plates (309) are connected to the side wall of the driven rod (308) via connecting rollers.

2. The rotary drum agricultural dryer according to claim 1, characterized in that: The rotating drying structure (2) includes a drive motor (201), which is connected to the end face of the connecting base (1) via a connecting seat. The drive end of the drive motor (201) is connected to a drive rod (202) via a coupling. A drive gear (203) is connected to the side wall of the drive rod (202), and a driven gear (204) is meshed on the side wall of the drive gear (203). A drying drum (205) is connected to the center of the driven gear (204). Both ends of the drying drum (205) are connected to a limiting housing (206). A feeding funnel (207) is connected to the limiting housing (206) on the right side. A limiting roller (208) is provided on the side wall of the drying drum (205). The limiting roller (208) is connected to the end face of the connecting base (1) through a connecting plate. One end of the drive rod (202) is connected to a rotating plate (209).

3. A drum-type agricultural dryer according to claim 2, characterized in that: One end of the rotating plate (209) is connected to a connecting plate (210), and one end of the connecting plate (210) is connected to a connecting plate (211). One end of the connecting plate (211) and located in the inner cavity of the drying drum (205) is connected to a rotating rod (212). A rotating connecting plate (213) and a connecting connecting plate (214) are connected to the side wall of the rotating rod (212). A connecting rod (215) and a connecting rod (216) are connected to the rotating connecting plate (213). One end of the connecting rod (215) and the connecting rod (216) is connected to a connecting bevel gear (217) and a connecting bevel gear (218), respectively. A fixed bevel gear (219) is meshed on the side wall of the connecting bevel gear (217) and the connecting bevel gear (218). The fixed bevel gear (219) is connected to the side wall of the inner cavity of the limiting housing (206) through a connecting sleeve. The other end of the connecting rod (215) is connected to a connecting turntable (220).

4. A drum-type agricultural dryer according to claim 3, characterized in that: A connecting rod (221) is connected to the side wall of the connecting turntable (220). The other end of the connecting rod (221) is connected to a driven turntable (222). A driven rotating shaft (223) is connected to the center of the driven turntable (222). A moving connecting rod (224) is connected to the side wall of the connecting rod (221). A limiting slide rail (225) is connected to the moving connecting rod (224). The limiting slide rail (225) is connected to the side wall of the connecting plate (214). A moving stirring blade (226) is connected to the side wall of the moving connecting rod (224). A fixed connecting plate (227) is connected between the rotating connecting plate (213) and the connecting plate (214). Multiple sets of connecting shafts (228) are connected to the side wall of the fixed connecting plate (227). One end of the connecting shaft (228) is connected to a swing connecting plate (229). Connecting rods (230) are alternately connected to the side wall of the swing connecting plate (229). The other end of the connecting rod (216) is connected to a connecting turntable (231). Connecting rods (232) are connected to the side wall of the connecting turntable (231). The other end of the connecting rods (232) is connected to the side wall of the swing connecting plate (229). Rotating stirring blades (233) are symmetrically connected to the side wall of the swing connecting plate (229).

5. A drum-type agricultural dryer according to claim 4, characterized in that: The heater (5) is connected to the controller (4) by a wire and the connection method is electrical connection. The drive motor (201) is connected to the controller (4) by a wire and the connection method is electrical connection. The drive rod (202) is connected to the end face of the connecting base (1) by a bearing seat, wherein the connection method between the drive rod (202) and the bearing seat is rotatable connection. The drying drum (205) has a discharge port on its side wall, and a manual valve is provided on the discharge port. The limiting housing (206) has an annular groove corresponding to the drying drum (205). The drying drum (205) and the annular groove are connected by a sliding connection. The feeding funnel (207) is provided with a manual valve.

6. A drum-type agricultural dryer according to claim 4, characterized in that: The rotating plate (209) and the connecting plate (210) are rotatably connected by a rotating shaft, the connecting plate (210) and the connecting plate (211) are rotatably connected by a rotating shaft, and the rotating rod (212) is connected to the limiting housing (206) through a bearing seat, wherein the rotating rod (212) and the bearing seat are connected by a rotating connection. The connecting rod (215) is connected to the rotating connecting plate (213) through a bearing seat, wherein the connection between the connecting rod (215) and the bearing seat is a rotatable connection. The connecting rod (216) is connected to the rotating connecting plate (213) through a bearing seat, wherein the connection between the connecting rod (216) and the bearing seat is a rotatable connection.

7. A drum-type agricultural dryer according to claim 4, characterized in that: The connecting turntable (220) and the connecting rod (221) are rotatably connected by a rotating shaft. The connecting rod (221) and the driven turntable (222) are rotatably connected by a rotating shaft. The driven rotating shaft (223) is connected to the rotating connecting plate (213) through a bearing seat. The driven rotating shaft (223) and the bearing seat are connected by a rotating connection.

8. A drum-type agricultural dryer according to claim 4, characterized in that: The limiting slide rail (225) is provided with a slide groove corresponding to the moving link (224), wherein the moving link (224) and the slide groove are connected in a sliding connection manner, and the connecting shaft (228) is connected to the fixed connecting plate (227) through a bearing seat, wherein the connecting shaft (228) and the bearing seat are connected in a rotating connection manner.

9. A drum-type agricultural dryer according to claim 4, characterized in that: The swing connecting plate (229) and the connecting rod (230) are rotatably connected by a rotating shaft, the connecting turntable (231) and the connecting rod (232) are rotatably connected by a rotating shaft, and the connecting rod (232) and the swing connecting plate (229) are rotatably connected by a rotating shaft.

10. A drum-type agricultural dryer according to claim 4, characterized in that: The rotating motor (304) is connected to the controller (4) via a wire and the connection is electrical. The driving rod (305) is connected to the connecting housing (302) via a bearing seat, wherein the driving rod (305) and the bearing seat are connected in a rotatable manner. The driven rod (308) is connected to the connecting housing (302) via a bearing seat, wherein the driven rod (308) and the bearing seat are connected in a rotatable manner.

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