Grain flail, distributor for a grain drying apparatus, and grain drying apparatus

Abstract

The application discloses a grain flinger, which comprises a flinger body, a top surface of the flinger body is formed with a top opening, a diameter of the top opening is larger than that of a bottom wall of the flinger body, and an arc-shaped side wall of the flinger body is formed with a discharge port for grain in the flinger body to pour out; and a flinger claw is arranged on the flinger body and used for driving the grain in the flinger body to move in the same direction with the flinger body. The grain flinger has the advantages of simple structure, reduced or avoided grain breakage, shelling and the like, and improved grain quality.

Description

Technical Field

[0001] This application belongs to the technical field of grain drying equipment, specifically relating to a grain swirl pan, a grain distributor for a grain drying device, and a grain drying device. Background Technology

[0002] Grain drying equipment can uniformly reduce the moisture content of newly harvested grain to a set standard within a short period of time, effectively improving grain storage efficiency and quality. Increased breakage rate is a crucial indicator of the quality of grain drying equipment. When rice circulates within the drying equipment, the interaction with moving parts easily leads to broken rice. Newly harvested rice has a high moisture content and a loose starch structure, making it prone to breakage and cracking upon impact. Furthermore, due to the uneven structure of newly harvested rice, some grains are not tightly bound to their husks, making them susceptible to separation from the germ and husk upon impact and friction, resulting in brown rice. According to relevant standards, both broken rice and brown rice fall under the category of increased breakage rate. Excessive breakage not only affects the quality of the entire batch of rice but also leads to waste of edible grain.

[0003] The grain slinger is a rotating component located at the top of a grain drying device. It scatters the transported grain to its surroundings. After colliding with the four walls of the dryer, the grain slides down and accumulates along the walls, eventually sliding towards the center, occupying space within the entire grain drying device and promoting grain mixing. However, the structural design of existing grain slingers is not ideal. For example, if the bottom space of the grain slinger is small, most of the grain entering the slinger is directly thrown out, colliding with the four walls of the dryer after being thrown out, increasing the risk of breakage. Alternatively, if the grain slinger is an inverted frustum structure, the grain entering it undergoes continuous centrifugal acceleration along the generatrix, causing most of the grain to be thrown out at a high speed and collide with the walls. Furthermore, the grain has a large vertical velocity component after being thrown out, rapidly colliding obliquely with the top of the dryer, increasing the probability of broken rice and brown rice. Utility Model Content

[0004] The purpose of this application is to provide a grain swirl pan, a uniform distributor for a grain drying device, and a grain drying device. The grain swirl pan has the advantages of simple structure, which helps to reduce or avoid grain breakage, dehulling, and other situations, thereby improving grain quality.

[0005] To achieve the above objectives, the first aspect of this application provides a grain shovel, the grain shovel comprising: The main body of the sling pan has a top opening on its top surface, the diameter of which is larger than the diameter of the bottom wall of the sling pan. The arc-shaped side wall of the sling pan has a discharge port for the grain inside the sling pan to be poured out. The swivel claw is installed on the swivel disc body and is used to drive the grain inside the swivel disc body to move in the same direction as the swivel disc body.

[0006] In an embodiment of this application, the arcuate sidewall of the main body of the swivel disc includes a first arc segment and a second arc segment disposed at the top of the first arc segment, wherein the radius of curvature of the second arc segment is greater than the radius of curvature of the first arc segment.

[0007] In an embodiment of this application, the discharge port is formed on the second arc segment.

[0008] In the embodiments of this application, the first arc segment and the bottom wall of the swivel disc body form a smooth arc transition.

[0009] In the embodiments of this application, the shape of the discharge port is circular or rectangular.

[0010] In the embodiments of this application, the area occupied by the discharge port on the arc-shaped sidewall of the main body of the slinger is S1, the surface area of ​​the arc-shaped sidewall of the main body of the slinger is S2, and the ratio between S1 and S2 is in the range of 1 / 5-1 / 2.

[0011] In the embodiments of this application, the swivel claw is located at the position where the first arc segment and the second arc segment connect.

[0012] A second aspect of this application provides a grain distributor for a grain drying apparatus. The grain distributor includes the aforementioned grain shovel, a rotary drive, and a connecting rod assembly. The connecting rod assembly is arranged vertically and connected to the bottom wall of the grain shovel. The rotary drive is drivenly connected to the connecting rod assembly.

[0013] In embodiments of this application, the connecting rod assembly includes: The connecting rod connects to the drive end of the rotary drive component; The connecting cylinder is sleeved on the outside of the connecting rod and connected to the bottom wall of the grain shovel. The connecting cylinder can move along the axial direction of the connecting rod.

[0014] A third aspect of this application provides a grain drying apparatus, which includes the aforementioned uniform distributor for a grain drying apparatus.

[0015] As can be seen from the above technical solution, the grain swivel disc includes a swivel disc body and swivel claws. The top surface of the swivel disc body has a top opening, the diameter of which is larger than the diameter of the bottom wall of the swivel disc body. A discharge port for the grain inside the swivel disc body is formed on the arc-shaped side wall of the swivel disc body. The swivel claws are mounted on the swivel disc body and are used to drive the grain inside the swivel disc body to move in the same direction as the swivel disc body. This grain swivel disc has a simple structure. Through the discharge port formed on the arc-shaped side wall of the swivel disc body, a portion of the grain entering the grain chamber is directly discharged from the discharge port, while a portion is discharged from the discharge port after being centrifugally accelerated over a short distance by the action of the swivel disc body and / or the swivel claws. This effectively avoids the grain impacting the top and side walls of the dryer body at high speed after long-distance centrifugal acceleration, reducing the probability of grain breakage and dehulling, and improving the grain drying quality.

[0016] Other features and advantages of the embodiments of this application will be described in detail in the following detailed description section. Attached Figure Description

[0017] The accompanying drawings are provided to further illustrate the embodiments of this application and form part of the specification. They are used together with the following detailed description to explain the embodiments of this application, but do not constitute a limitation on the embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without any inventive effort. In the drawings: Figure 1 This is a schematic diagram of the combined structure of the grain shovel and connecting rod assembly in an embodiment of this application; Figure 2 This is a schematic diagram of the structure of the main body of the slinger in the embodiments of this application; Figure 3 This is a schematic diagram of the structure of the distributor in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the grain drying device in the embodiments of this application.

[0018] Explanation of reference numerals in the attached figures 1-Swing disc body; 101-Top opening; 102-Discharge port; 103-First arc segment; 104-Second arc segment; 2-Swing claw; 3-Rotation drive component; 4-Connecting rod assembly; 401-Connecting rod; 402-Connecting cylinder; 5-Dryer body; 6-Lifting module; 7-Conveying component; R1-Radius of curvature of the first arc segment; R2-Radius of curvature of the second arc segment. Detailed Implementation

[0019] The specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit this application.

[0020] Embodiments of this application provide a grain shovel, such as Figures 1-4 As shown, the grain dump includes: The main body of the sling pan 1 has a top opening 101 on its top surface. The diameter of the top opening 101 is larger than the diameter of the bottom wall of the sling pan 1. The arc-shaped side wall of the sling pan 1 has a discharge port 102 for the grain inside the sling pan 1 to be discharged. The swivel claw 2 is set on the swivel disc body 1 and is used to drive the grains inside the swivel disc body 1 to move in the same direction as the swivel disc body 1.

[0021] Specifically, the grain dumping disc in this embodiment is applicable to a grain drying device. The grain dumping disc is pivotally arranged in the dryer body of the grain drying device around its central axis. Grains (such as rice, corn, etc.) can be tilted and fed into the dumping disc body 1 in sequence through the lifting module 6 and the conveying component 7 of the grain drying device (in this embodiment, the grain dumping disc is in a rotating state when the grain drying device is working). Furthermore, the main body 1 of the swivel disc includes an arc-shaped sidewall and a bottom wall. The arc-shaped sidewall is located on the outer periphery of the circular bottom wall, and the two together form a grain cavity. The top opening 101 is located at the top of the grain cavity. The grains put in enter the grain cavity through the top opening 101. If some grains fall into the discharge port 102 after entering the grain cavity, they can be directly sprinkled down into the dryer body from the discharge port 102. Alternatively, after entering the grain cavity, the grains that are not sprinkled out from the discharge port 102 will undergo centrifugal acceleration under the drive of the main body 1 of the swivel disc (or under the action of the swivel claw 2, that is, the swivel claw 2 transfers the rotational kinetic energy of the swivel disc 1 to the grains through friction and compression with the grains, so that the grains obtain a higher tangential speed) and be sprinkled out from the discharge port 102 after moving to the position of the discharge port 102. This reduces or avoids the situation where the grains are thrown out from the top opening 101 and directly collide with the top wall or side wall of the dryer body, resulting in breakage and / or dehulling.

[0022] The grain-spinning disc structure in this embodiment is simple. By forming a discharge port 102 on the arc-shaped side wall of the main body 1 of the grain-spinning disc, a portion of the grain entering the grain chamber is directly discharged from the discharge port 102, while a portion is discharged from the discharge port 102 after being centrifugally accelerated over a short distance by the action of the main body 1 of the grain-spinning disc and / or the claws 2. This effectively avoids the grain from impacting the top and side walls of the dryer body 5 at high speed after being centrifugally accelerated over a long distance, thereby reducing the probability of grain breakage and dehulling and improving the quality of grain drying.

[0023] In one embodiment of this application, such as Figure 2 As shown, the arc-shaped sidewall of the main body 1 of the swivel disc includes a first arc segment 103 and a second arc segment 104 disposed on the top of the first arc segment 103. The radius of curvature R2 of the second arc segment is greater than the radius of curvature R1 of the first arc segment.

[0024] Specifically, the radius of curvature of the first arc segment is R1, and the radius of curvature of the second arc segment is R2, where R1 > R2. This configuration causes the upper part of the swirl plate body 1 to bend downwards (rather than tilting upwards) compared to the lower part. This allows the grain falling into the grain cavity to undergo centrifugal acceleration to varying degrees along the outline tangent of the grain cavity (i.e., the overall outline tangent of the first arc segment 103 and the second arc segment 104). This allows the grain to be thrown outwards at different centrifugal speeds, which can greatly reduce the probability of the grain colliding with the top and side walls of the dryer body 5, reduce the friction between the grain and the rice husk, and reduce the occurrence of brown rice after rice hulling.

[0025] In one embodiment of this application, the discharge port 102 is formed on the second arc segment 104.

[0026] Specifically, after the grains enter the grain chamber, they tend to move towards the bottom of the grain chamber under the action of gravity. The discharge port 102 is formed on the second arc segment 104, which allows the discharge port 102 to be located at a relatively high position on the main body of the grain throwing plate 1. This effectively prevents most of the grains entering the grain chamber from falling directly through the discharge port 102 without acceleration and accumulating below the grain throwing plate.

[0027] In one embodiment of this application, the first arc segment 103 and the bottom wall of the sling plate body 1 form a smooth arc transition. The above arrangement can effectively prevent the grain from rebounding after falling to the bottom of the grain cavity and colliding with the side wall of the sling plate body 1, and instead allow the grain at the bottom of the grain cavity to move smoothly to the location of the arc-shaped side wall of the sling plate body 1.

[0028] In one embodiment of this application, the discharge port 102 is circular in shape.

[0029] In this embodiment, the discharge port 102 is circular, which specifically means that the discharge port 102 is circular in three-dimensional space. Compared with other shapes (such as triangles) of discharge port 102, the circular discharge port 102 can make the grains spill out more smoothly and can avoid the grains being stuck by the side wall of the discharge port 102 (such as being stuck by the sharp corner of the triangular discharge port 102).

[0030] In one embodiment of this application, the area occupied by the discharge port 102 on the arc-shaped sidewall of the sling plate body 1 is S1, the surface area of ​​the arc-shaped sidewall of the sling plate body 1 is S2, and the ratio between S1 and S2 is in the range of 1 / 5-1 / 2.

[0031] Specifically, the discharge port 102 is a hollow area on the arc-shaped sidewall of the sling plate body 1. The area occupied by the discharge port 102 on the arc-shaped sidewall of the sling plate body 1 is the area occupied by the hollow area on the curved surface of the arc-shaped sidewall. In this embodiment, there are multiple discharge ports 102 (e.g., four). The multiple discharge ports 102 are evenly distributed circumferentially on the arc-shaped sidewall of the sling plate body 1. At this time, S1 is the area occupied by all the hollow areas (e.g., four hollow areas) on the curved surface of the arc-shaped sidewall. The ratio between S1 and S2 can be 1 / 2, 1 / 3, 1 / 4, or 1 / 5. If the ratio between S1 and S2 is greater than 1 / 2, the grains thrown out will mainly concentrate in the middle of the dryer body, while there will be less grains at the outer edge of the dryer body. If the ratio between S1 and S2 is less than 1 / 5, the grains thrown out will mainly concentrate at the outer edge of the dryer body, while there will be less grains at the middle of the dryer body. A ratio between 1 / 5 and 1 / 2 will make the grains thrown out by the grain-throwing disc more evenly distributed inside the dryer body.

[0032] In one embodiment of this application, the claw 2 is located at the connection between the first arc segment 103 and the second arc segment 104. In this embodiment, there are multiple claws 2, which are evenly distributed circumferentially on the arc-shaped sidewall of the spinning disc body 1. By placing the claws 2 at the connection between the first arc segment 103 and the second arc segment 104, the claws 2 can be kept away from the top opening 101, thereby effectively preventing the linear velocity of the claws 2 from being too high when the spinning disc body 1 rotates, and further preventing the grains hitting the claws 2 from breaking.

[0033] Another embodiment of this application provides a distributor for a grain drying apparatus, such as... Figure 3 As shown, the grain distributor for the grain drying device includes the grain shovel, the rotary drive 3 and the connecting rod assembly 4 in the above embodiment. The connecting rod assembly 4 is arranged vertically and connected to the bottom wall of the grain shovel. The rotary drive 3 is drivenly connected to the connecting rod assembly 4.

[0034] Specifically, in this embodiment, the rotary drive 3 can be a motor, and the connecting rod assembly 4 is distributed vertically. After the rotary drive 3 rotates, it drives the connecting rod assembly 4 to rotate around its pivot center, which in turn drives the grain throwing disc to rotate, so that the grain in the grain chamber can make centrifugal motion and then be evenly sprinkled into the interior of the dryer body through the discharge port 102.

[0035] In one embodiment of this application, the connecting rod assembly 4 includes: The connecting rod 401 is connected to the drive end of the rotary drive component 3; The connecting cylinder 402 is sleeved on the outside of the connecting rod 401 and connected to the bottom wall of the grain shovel. The connecting cylinder 402 can move along the axial direction of the connecting rod 401.

[0036] Specifically, the connecting rod 401 is vertically distributed and connected to the drive end of the motor. The connecting cylinder 402 has a first connecting hole on its wall, and the connecting rod 401 has multiple second connecting holes distributed axially. The connecting rod assembly 4 also includes screws. By adjusting the relative position of the connecting cylinder 402 on the connecting rod 401 and then passing the screws through the first connecting holes, the connecting cylinder 402 and the connecting rod 401 can be fixed, thereby adjusting the overall length of the connecting rod assembly 4, which in turn adjusts the distance between the grain slinger and the top wall of the dryer body. When the grain has good flowability and is more likely to collide with the top wall of the dryer body after centrifugal acceleration, the operator can adjust the relative position of the connecting cylinder 402 on the connecting rod 401 and increase the distance between the grain slinger and the top wall of the dryer body to reduce the probability of the grain colliding with the top wall of the dryer body.

[0037] Another embodiment of this application provides a grain drying apparatus, such as... Figure 4 As shown, the grain drying device includes the grain distributor for grain drying devices described in the above embodiments.

[0038] Specifically, the grain drying device also includes a lifting module 6 and a conveying component 7. The lifting module 6 is located on one side of the dryer body 5 and connected to the grain source. The conveying component 7 is inclined and its two ends are respectively connected to the interior of the lifting module 6 and the dryer body 5, and is used to convey the grain output from the output end of the lifting module 6 to the grain sling. Further, in this embodiment, the conveying component 7 can be a conveying pipe or a conveying auger.

[0039] In the description of this application, it should be understood that the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0040] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between components; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0041] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0042] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A grain-throwing tray, characterized in that, The grain dumping pan includes: The top surface of the sling plate body (1) has a top opening (101) and the diameter of the top opening (101) is larger than the diameter of the bottom wall of the sling plate body (1). The arc-shaped side wall of the sling plate body (1) has a discharge port (102) for the grain inside the sling plate body (1) to be sprinkled out. The swivel claw (2) is set on the swivel disc body (1) and is used to drive the grain in the swivel disc body (1) to move in the same direction as the swivel disc body (1).

2. The grain shovel according to claim 1, characterized in that, The arc-shaped sidewall of the main body (1) of the swivel disc includes a first arc segment (103) and a second arc segment (104) disposed on the top of the first arc segment (103), wherein the radius of curvature R2 of the second arc segment is greater than the radius of curvature R1 of the first arc segment.

3. The grain shovel according to claim 2, characterized in that, The discharge port (102) is formed on the second arc segment (104).

4. The grain shovel according to claim 2, characterized in that, The first arc segment (103) and the bottom wall of the swivel body (1) form a smooth arc transition.

5. The grain shovel according to claim 1, characterized in that, The discharge port (102) is circular in shape.

6. The grain shovel according to claim 1, characterized in that, The area occupied by the discharge port (102) on the arc-shaped sidewall of the sling plate body (1) is S1, the surface area of ​​the arc-shaped sidewall of the sling plate body (1) is S2, and the ratio between S1 and S2 is in the range of 1 / 5-1 / 2.

7. The grain shovel according to any one of claims 2-4, characterized in that, The swivel claw (2) is located at the position where the first arc segment (103) and the second arc segment (104) are connected.

8. A uniform distributor for a grain drying apparatus, characterized in that, The grain distributor for the grain drying device includes a grain swirl pan, a rotary drive (3), and a connecting rod assembly (4) according to any one of claims 1-7, wherein the connecting rod assembly (4) is arranged vertically and connected to the bottom wall of the grain swirl pan, and the rotary drive (3) is drivenly connected to the connecting rod assembly (4).

9. The uniform distributor for a grain drying apparatus according to claim 8, characterized in that, The connecting rod assembly (4) includes: The connecting rod (401) is connected to the driving end of the rotary drive (3); A connecting cylinder (402) is sleeved on the outside of the connecting rod (401) and connected to the bottom wall of the grain shovel. The connecting cylinder (402) is capable of moving along the axial direction of the connecting rod (401).

10. A grain drying apparatus, characterized in that, The grain drying apparatus includes a grain distributor according to claim 9.

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