A grain drying apparatus

Abstract

The utility model relates to agricultural machinery field, concretely relates to a grain drying equipment, including drying box, one side of drying box is equipped with auger conveying mechanism, the bottom side intercommunication of auger conveying mechanism has feed pipe. The utility model discloses through the mechanical adjusting structure of U -shaped support, rotary disc, clamping rod and multiple sets of card hole cooperation, can manually accurate regulation guide plate inclination angle, adapts the grain of different granularity such as wheat, corn, rice, through the control falling speed makes the large -grained grain drying time extension, small -grained grain avoids excessive drying, promotes equipment adaptability, realizes the multifunctional output of single power source through the belt drive mechanism, and the cam rotates that transmission rod drives the scattering roller scatters the grain and drives the cam, and the cam periodicity pushes the guide plate and produces mechanical vibration, both avoid the grain to stick to the accumulation on the guide plate, and can make the grain tumble, increase the contact area with hot air, guarantee the uniformity of drying.

Description

Technical Field

[0001] This utility model relates to the field of agricultural machinery, specifically to a grain drying device. Background Technology

[0002] In agricultural production, grains (such as wheat, rice, and corn) typically contain 15%-30% moisture after harvest. If stored directly, they are prone to mold and sprouting due to microbial growth, leading to a decline in grain quality or even spoilage. Therefore, grain drying is a crucial step in ensuring safe grain storage and extending the storage period. Currently, grain drying equipment on the market mainly includes box-type drying equipment, drum-type drying equipment, and continuous drying equipment. Their core working principle is to achieve full contact between hot airflow and grain particles to realize moisture transfer and evaporation, thereby achieving the purpose of drying.

[0003] In existing technologies, grains are guided to fall using a guide plate at a fixed angle. This method cannot accommodate grains of different sizes. Larger grains are prone to insufficient drying due to excessive falling speed, while smaller grains are prone to creating drying dead zones due to accumulation, and are also prone to over-drying. Furthermore, the lack of a mechanical dispersing structure in the feeding process makes it easy for damp grains to clump together. Clumped grains cannot come into contact with hot air, which further contributes to poor drying uniformity.

[0004] Therefore, it is necessary to invent a grain drying device to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a grain drying device that breaks up grain clumps through a mechanical dispersing structure and has an adjustable feeding component to adapt to grains of different particle sizes, thereby solving the problems of insufficient grain drying and inability to adjust the feeding angle in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a grain drying device, including a drying box, a screw conveyor mechanism is provided on one side of the drying box, a feed pipe is connected to one side of the bottom of the screw conveyor mechanism, the bottom end of the feed pipe passes through the drying box and extends into the interior of the drying box, a material guiding assembly is fixedly installed on both sides of the inner wall of the drying box, and a hot air fan is fixedly installed on the bottom of the inner wall of the drying box through a support plate.

[0007] Preferably, the material guiding assembly includes a U-shaped frame, one side of which is fixedly connected to one side of the inner wall of the drying chamber, and a rotating disk is rotatably connected to both the front and rear ends of the inner wall of the U-shaped frame, with a material guiding plate fixedly installed between the opposite sides of the two rotating disks.

[0008] Preferably, a support is fixedly installed at the front end of the inner cavity of the U-shaped frame, a locking rod is passed through the support, the bottom end of the locking rod passes through the rotating disk and extends into the interior of the rotating disk, a pull handle is fixedly installed at the top end of the locking rod, a fastening spring is fixedly installed between the bottom of the pull handle and the top of the support and on the surface of the locking rod, and the rotating disk has multiple locking holes for use with the locking rod.

[0009] Preferably, a first bracket is fixedly installed on the back of the drying box, and a rotating rod is rotatably connected to the front side of the first bracket. One end of the rotating rod passes through the drying box and the feed pipe in sequence and extends into the interior of the feed pipe. Multiple dispersing rollers are fixedly installed on the surface of the feed pipe on the rotating rod, and a drive motor for driving the rotating rod to rotate is fixedly installed on the rear side of the first bracket.

[0010] Preferably, a second bracket is fixedly installed on both sides of the back of the drying oven. A transmission rod is rotatably connected to the front of the second bracket. The front end of the transmission rod passes through the drying oven and extends into the interior of the drying oven. A support block is rotatably connected to the front end of the transmission rod. The support block is fixedly connected to one side of the inner wall of the drying oven. A cam is fixedly installed on the surface of the transmission rod inside the drying oven. A first pulley is fixedly installed on the surface of both transmission rods. Two second pulleys are fixedly installed on the surface of the rotating rod. The first pulleys are connected to the second pulleys via a belt.

[0011] Preferably, an inclined plate is fixedly installed on the right side of the inner wall of the drying chamber and at the top of the material guiding assembly, a door is hinged to the front of the drying chamber, and a discharge port is opened at the bottom of one side of the drying chamber.

[0012] The technical effects and advantages provided by this utility model in the above technical solution are as follows:

[0013] 1. The mechanical adjustment structure, consisting of a U-shaped frame, rotating disc, clamping rod, and multiple sets of clamping holes, allows for precise manual adjustment of the guide plate's tilt angle. This adapts to grains of different sizes, such as wheat, corn, and rice. By controlling the falling speed, the drying time for large grains is extended, while small grains are prevented from over-drying, ensuring that the grains are fully heated and improving the equipment's adaptability. 2. A belt drive mechanism enables multi-functional output from a single power source. The rotating rod simultaneously drives the dispersing roller to disperse the grains, and the transmission rod drives the cam to rotate. The cam periodically pushes the guide plate, generating mechanical vibration. This prevents the grains from sticking and accumulating on the guide plate, while also tumbling the grains to increase their contact area with hot air, further ensuring the uniformity of drying for various grains. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0016] Figure 2 This is a cross-sectional structural diagram of the drying oven of this utility model;

[0017] Figure 3 This is a schematic diagram of the material guiding assembly of this utility model;

[0018] Figure 4 For the present utility model Figure 3 Enlarged structural diagram at point A in the middle;

[0019] Figure 5 This is a bottom view of the cross-section of the drying oven of this utility model;

[0020] Figure 6 This is a schematic diagram of the rear structure of the drying oven of this utility model;

[0021] Figure 7 This is a schematic diagram of the connection structure between the rotating rod and the feed pipe of this utility model.

[0022] Explanation of reference numerals in the attached figures:

[0023] 1. Drying oven; 2. Screw conveyor mechanism; 3. Feed pipe; 4. Guide assembly; 41. U-shaped frame; 42. Rotary disc; 43. Guide plate; 44. Support; 45. Locking rod; 46. Pull handle; 47. Fastening spring; 48. Locking hole; 5. Hot air blower; 6. First support; 7. Rotating rod; 8. Dispersing roller; 9. Second support; 10. Transmission rod; 11. Support block; 12. Cam; 13. First pulley; 14. Second pulley; 15. Inclined plate; 16. Box door; 17. Discharge port; 18. Drive motor. Detailed Implementation

[0024] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0025] This utility model provides, for example Figure 1-7The grain drying equipment shown includes a drying box 1, a screw conveyor 2 on one side of the drying box 1, a feed pipe 3 connected to one side of the bottom of the screw conveyor 2, the bottom end of the feed pipe 3 passing through the drying box 1 and extending into the interior of the drying box 1, a guide assembly 4 fixedly installed on both sides of the inner wall of the drying box 1, and a hot air fan 5 fixedly installed on the bottom of the inner wall of the drying box 1 through a support plate.

[0026] The top of the drying oven 1 is provided with an exhaust vent (not shown in the figure);

[0027] The material guiding assembly 4 includes a U-shaped frame 41, one side of which is fixedly connected to one side of the inner wall of the drying box 1. The front and rear ends of the inner wall of the U-shaped frame 41 are rotatably connected to rotating disks 42, and a material guiding plate 43 is fixedly installed between the opposite sides of the two rotating disks 42.

[0028] Ventilation holes are provided on the guide plate 43;

[0029] A support 44 is fixedly installed at the front end of the inner cavity of the U-shaped frame 41. A locking rod 45 passes through the support 44. The bottom end of the locking rod 45 passes through the rotating disk 42 and extends into the interior of the rotating disk 42. A pull handle 46 is fixedly installed at the top end of the locking rod 45. A fastening spring 47 is fixedly installed between the bottom of the pull handle 46 and the top of the support 44 and on the surface of the locking rod 45. The rotating disk 42 has multiple locking holes 48 that cooperate with the locking rod 45.

[0030] Adjust the tilt angle of the guide plate 43 according to the particle size of the grain to be dried. When the corn kernels are large, adjust the tilt angle of the guide plate 43 to 30°. When the wheat kernels are small, adjust it to 60°. Pull the handle 46 upward so that the locking rod 45 overcomes the elastic force of the fastening spring 47 and disengages from the locking hole 48 of the rotating disk 42. After rotating the guide plate 43 to the target angle, release the handle 46. The fastening spring 47 resets and pushes the locking rod 45 into the corresponding locking hole 48, thus completing the angle fixing of the guide plate 43.

[0031] A first support 6 is fixedly installed on the back of the drying box 1. A rotating rod 7 is rotatably connected to the front side of the first support 6. One end of the rotating rod 7 passes through the drying box 1 and the feed pipe 3 in sequence and extends into the inside of the feed pipe 3. Multiple dispersing rollers 8 are fixedly installed on the surface of the feed pipe 3 on the rotating rod 7. A drive motor 18 for driving the rotating rod 7 to rotate is fixedly installed on the rear side of the first support 6.

[0032] A second bracket 9 is fixedly installed on both sides of the back of the drying oven 1. A transmission rod 10 is rotatably connected to the front side of the second bracket 9. The front end of the transmission rod 10 passes through the drying oven 1 and extends into the interior of the drying oven 1. A support block 11 is rotatably connected to the front end of the transmission rod 10. The support block 11 is fixedly connected to one side of the inner wall of the drying oven 1. A cam 12 is fixedly installed on the surface of the transmission rod 10 inside the drying oven 1. A first pulley 13 is fixedly installed on the surface of both transmission rods 10. Two second pulleys 14 are fixedly installed on the surface of the rotating rod 7. The first pulleys 13 are connected to the second pulleys 14 through a belt.

[0033] The upper part of cam 12 contacts the bottom of U-shaped bracket 41;

[0034] The drying oven 1 has a groove that works in conjunction with the cam 12 to prevent motion interference;

[0035] An inclined plate 15 is fixedly installed on the right side of the inner wall of the drying chamber 1 and on top of the material guiding assembly 4. The inclined plate 15 is used to prevent grain from entering the gap of the material guiding assembly 4. A door 16 is hinged to the front of the drying chamber 1, and a discharge port 17 is opened at the bottom of one side of the drying chamber 1.

[0036] The working principle of this practical application is as follows:

[0037] Adjust the tilt angle of the guide plate 43 according to the particle size of the grain to be dried. For example, when the corn kernels are large, adjust the tilt angle of the guide plate 43 to 30°; when the wheat kernels are small, adjust it to 60°. Pull the handle 46 upward so that the locking rod 45 overcomes the elastic force of the fastening spring 47 and disengages from the locking hole 48 of the rotating disk 42. After rotating the guide plate 43 to the target angle, release the handle 46. The fastening spring 47 resets and pushes the locking rod 45 into the corresponding locking hole 48 to complete the angle fixing of the guide plate 43.

[0038] Start the drive motor 18 and the hot air blower 5. The drive motor 18 drives the rotating rod 7 to rotate. The rotating rod 7 drives the first pulley 13 and the transmission rod 10 to rotate synchronously through the second pulley 14 and the belt. The transmission rod 10 drives the cam 12 to rotate periodically. At the same time, the rotating rod 7 drives the dispersing roller 8 in the feed pipe 3 to rotate at high speed.

[0039] The grain to be dried is poured into the auger conveyor 2. The grain is conveyed to the feed pipe 3 by the auger. During the falling process, the spiral protrusions of the dispersing roller 8 mechanically disperse the clumps of grain, ensuring that the grain enters the drying box 1 in a single-particle state.

[0040] After being broken up, the grains fall smoothly onto the left guide plate 43 via the inclined plate 15. The cam 12 periodically pushes the guide plate 43, causing it to vibrate mechanically. Under the vibration, the grains fall slowly along the guide plate 43. At the same time, the hot air generated by the hot air blower 5 flows from bottom to top, making full contact with the tumbling grains and quickly removing the moisture from them. The grains are then guided by the multi-layer guide assembly 4 and gradually fall to the bottom of the drying chamber 1. During the drying process, the moisture evaporates and is discharged through the exhaust port reserved at the top of the drying chamber 1.

[0041] The dried grains are discharged through the discharge port 17 and can be directly packaged or stored. After the equipment is used, the door 16 can be opened to clean the inside of the drying box 1 and the surface of the guide plate 43 to prevent residual grains from becoming moldy and affecting the next use.

[0042] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A grain drying device, comprising a drying chamber (1), characterized in that: The drying box (1) is provided with a screw conveyor mechanism (2) on one side. The bottom side of the screw conveyor mechanism (2) is connected to a feed pipe (3). The bottom end of the feed pipe (3) passes through the drying box (1) and extends into the interior of the drying box (1). The two sides of the inner wall of the drying box (1) are fixedly installed with a material guiding assembly (4). The bottom of the inner wall of the drying box (1) is fixedly installed with a hot air blower (5) through a support plate.

2. The grain drying equipment according to claim 1, characterized in that: The material guiding assembly (4) includes a U-shaped frame (41), one side of which is fixedly connected to one side of the inner wall of the drying box (1). The front end and rear end of the inner wall of the U-shaped frame (41) are rotatably connected to rotating disks (42), and a material guiding plate (43) is fixedly installed between the opposite sides of the two rotating disks (42).

3. The grain drying equipment according to claim 2, characterized in that: A support (44) is fixedly installed at the front end of the inner cavity of the U-shaped frame (41). A locking rod (45) passes through the support (44). The bottom end of the locking rod (45) passes through the rotating disk (42) and extends into the interior of the rotating disk (42). A pull handle (46) is fixedly installed at the top end of the locking rod (45). A fastening spring (47) is fixedly installed between the bottom of the pull handle (46) and the top of the support (44) and on the surface of the locking rod (45). A plurality of locking holes (48) are opened on the rotating disk (42) to cooperate with the locking rod (45).

4. The grain drying equipment according to claim 1, characterized in that: A first bracket (6) is fixedly installed on the back of the drying box (1). A rotating rod (7) is rotatably connected to the front side of the first bracket (6). One end of the rotating rod (7) passes through the drying box (1) and the feed pipe (3) in sequence and extends into the interior of the feed pipe (3). Multiple dispersing rollers (8) are fixedly installed on the surface of the feed pipe (3) on the rotating rod (7). A drive motor (18) for driving the rotating rod (7) to rotate is fixedly installed on the rear side of the first bracket (6).

5. A grain drying device according to claim 4, characterized in that: The drying box (1) has two fixed second brackets (9) on both sides of its back. The front side of the second bracket (9) is rotatably connected to a transmission rod (10). The front end of the transmission rod (10) passes through the drying box (1) and extends into the interior of the drying box (1). The front end of the transmission rod (10) is rotatably connected to a support block (11). The support block (11) is fixedly connected to one side of the inner wall of the drying box (1). The surface of the transmission rod (10) inside the drying box (1) is fixedly mounted with a cam (12). The surfaces of the two transmission rods (10) are fixedly mounted with first pulleys (13). The surface of the rotating rod (7) is fixedly mounted with two second pulleys (14). The first pulleys (13) are connected to the second pulleys (14) by a belt.

6. A grain drying device according to claim 1, characterized in that: An inclined plate (15) is fixedly installed on the right side of the inner wall of the drying box (1) and on top of the material guiding assembly (4). A box door (16) is hinged to the front of the drying box (1). A discharge port (17) is opened at the bottom of one side of the drying box (1).

Images