Grain air screening treatment equipment facilitating impurity collection
By incorporating a reciprocating shaft driven by a motor and a dispersing rod, the design solves the problems of airflow waste and incomplete impurity separation caused by concentrated grain in grain air sieving equipment. This achieves uniform dispersion of grain during air sieving and efficient collection of impurities, thereby improving grain quality and processing efficiency.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-26
- Publication Date
- 2026-04-07
AI Technical Summary
Existing grain air sieving equipment has a fixed feed inlet, which causes the grain to concentrate in the middle, with no grain flow in the side areas. This results in insufficient utilization of airflow, reduced sieving efficiency, incomplete separation of light impurities, and affects grain quality and efficiency. It also increases cleaning costs and workload.
Design a grain air sieve processing device that facilitates impurity collection. The device uses a motor-driven reciprocating shaft to move the feed shell back and forth. Combined with a dispersing rod and a vibrating rod, it ensures that the grain is evenly dispersed into the air classifier airflow. The device also utilizes an arc-shaped screen and an impurity discharge hopper to achieve automatic separation and collection of impurities.
It achieves uniform dispersion of grains through air sieving, maximizes the utilization of airflow, improves sorting accuracy and efficiency, reduces impurity residue, and lowers subsequent cleaning costs and workload.
Smart Images
Figure CN121797618A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of grain wind screening processing, in particular to a grain wind screening processing equipment facilitating impurity collection. BACKGROUND
[0002] During the harvesting, airing and storage of grain, dust or granular impurities are often mixed in, so that the grain wind screening processing equipment needs to be used in the grain processing industry chain to screen out the dust, granular impurities or shriveled grains in the grain, so as to improve the overall quality of the grain and facilitate subsequent processing of the grain.
[0003] In the prior art, the grain wind screening processing equipment mostly has a fixed feed inlet, so that the grain continuously falls from a single position when the grain is wind screened, resulting in that the grain is concentrated in the middle, the two side regions have no grain flow, the airflow is not fully utilized, the airflow in the two side regions is wasted, and the grain concentrated and accumulated together cannot be effectively wind screened due to the high thickness of the central region, so that the wind screening effect is reduced, the light impurities cannot be fully stripped, the overall quality of the grain after wind screening is limitedly improved, the impurities are not thoroughly separated, and there are still many light impurities remaining in the grain, which affects the quality and efficiency of subsequent processing of the grain, and also increases the cost and workload of subsequent cleaning of the impurities. SUMMARY
[0004] The present application aims to solve the problem that the grain wind screening processing equipment mostly has a fixed feed inlet, so that the grain continuously falls from a single position when the grain is wind screened, resulting in that the grain is concentrated in the middle, the two side regions have no grain flow, the airflow is not fully utilized, the airflow in the two side regions is wasted, and the grain concentrated and accumulated together cannot be effectively wind screened due to the high thickness of the central region, so that the wind screening effect is reduced, the light impurities cannot be fully stripped, the overall quality of the grain after wind screening is limitedly improved, the impurities are not thoroughly separated, and there are still many light impurities remaining in the grain, which affects the quality and efficiency of subsequent processing of the grain, and also increases the cost and workload of subsequent cleaning of the impurities, by proposing a grain wind screening processing equipment facilitating impurity collection.
[0005] The object of the present application can be achieved by the following technical solutions: A grain wind screening processing equipment facilitating impurity collection, comprising a main unit and a feed unit; The main unit comprises a wind screening box and a pair of air fans arranged on one side of the wind screening box; an arc-shaped screen is arranged on one side of the outer wall of the wind screening box; a top end of the outer wall of the arc-shaped screen is fixedly connected with an impurity discharge hopper; a bottom end of the outer wall of the wind screening box is provided with a grain discharge hopper; an upper screen plate and a lower screen plate are fixedly connected to the inner side wall of the wind screening box; The feeding unit includes a motor fixed to one side of the air screen box via a fixing plate; a sliding groove is provided at the top of the outer wall of the air screen box; a feeding shell is slidably connected to the inner side wall of the sliding groove; a reciprocating shaft is provided at the output end of the motor; a reciprocating plate is provided on the outer side wall of the reciprocating shaft, and the reciprocating plate is fixedly connected to the feeding shell.
[0006] In a preferred embodiment of the present invention, a metering rod is rotatably connected to one side of the inner wall of the feed shell, and one end of the outer wall of the metering rod extends out of the feed shell; a set of metering plates is fixedly connected to the outer wall of the metering rod; a circular shell is slidably connected to the outer wall of the metering rod, and the circular shell is rotatably and sealed to the air screen box; a gear is fixedly connected to the outer wall of both the circular shell and the reciprocating shaft, and a pair of gears mesh with each other.
[0007] In a preferred embodiment of the present invention, a set of discharge pipes is rotatably connected to the bottom of the outer wall of the feed shell; a second gear is fixedly connected to the outer wall of the discharge pipe; a second rack is fixedly connected to the inner wall of the air screen box; and the set of second gears meshes with the second rack.
[0008] In a preferred embodiment of the present invention, a rotating rod is rotatably connected to the inner wall of the discharge pipe, and one end of the outer wall of the rotating rod penetrates the discharge pipe; a set of arc-shaped plates is fixedly connected to the outer wall of the rotating rod; a gear three is fixedly connected to one end of the outer wall of the rotating rod; a set of annular rack three is fixedly connected to the bottom end of the outer wall of the feed shell through a set of connecting blocks; the set of annular rack three meshes with the set of gear three respectively.
[0009] In a preferred embodiment of the present invention, a set of dispersing rods is rotatably connected to the bottom of the outer wall of the feed shell; a gear four is fixedly connected to the outer wall of each set of dispersing rods; the gear four meshes with a set of gear two respectively; a set of dispersing plates is fixedly connected to the outer wall of the dispersing rods; the dispersing plates are located below the discharge pipe.
[0010] In a preferred embodiment of the present invention, an annular shell is rotatably connected to the outer wall of the dispersing rod; a set of auxiliary plates is fixedly connected to the outer wall of the annular shell; a set of drive rods is rotatably connected to one side of the outer wall of the feed shell through a set of square blocks; a sprocket is fixedly connected to the outer wall of both the drive rod and the dispersing rod, and the two sets of sprockets are connected to each other through a set of chains; a gear is fixedly connected to the outer wall of both the annular shell and the drive rod, and a pair of gears mesh with each other.
[0011] In a preferred embodiment of the present invention, a square through groove is provided on one side of the outer wall of each of the auxiliary plates and the dispersing plates; a pair of positive triangles and a pair of negative triangles are fixedly connected to the outer wall of each of the auxiliary plates and the dispersing plates, and the two pairs of positive triangles and the pair of negative triangles are respectively matched with the two sets of square through grooves; a pair of positive auxiliary blocks and a pair of negative auxiliary blocks are fixedly connected to the outer wall of each of the auxiliary plates and the dispersing plates; the two pairs of positive auxiliary blocks and the pair of negative auxiliary blocks are respectively matched with the two pairs of positive triangles and the pair of negative triangles.
[0012] In a preferred embodiment of the present invention, a set of sliding plates is fixedly connected to one side of the outer wall of the feed shell; a set of threaded rods is rotatably connected to one side of the outer wall of the feed shell; threaded plates are threadedly connected to the outer walls of the set of threaded rods, and the top ends of the outer walls of the set of threaded plates are slidably connected to the bottom ends of the outer walls of the set of sliding plates; arc-shaped protective shells are fixedly connected to the bottom ends of the outer walls of the set of threaded plates, and the set of arc-shaped protective shells are respectively matched with a set of discharge pipes.
[0013] In a preferred embodiment of the present invention, a vibrating rod is rotatably connected to one side of the outer wall of the air screen box, and one end of the outer wall of each pair of vibrating rods extends into the air screen box; the pair of vibrating rods are respectively located below the upper screen plate and the lower screen plate; a set of vibrating balls are fixed to the outer walls of each pair of vibrating rods by a set of flexible rods; the pair of vibrating rods and the reciprocating shaft are connected to each other by a sprocket and a chain.
[0014] Compared with the prior art, the beneficial effects of the present invention are: 1. The reciprocating shaft, driven by a motor, rotates, causing the reciprocating plate to move back and forth. This, in turn, causes the feed hopper to move back and forth, resulting in a continuous and regular change in the grain's drop point. This overcomes the drawbacks of a fixed feed inlet, ensuring the grain enters the air classifier in a uniform and dispersed manner. This maximizes the utilization of the air classifier airflow and minimizes its waste. It also solves problems such as airflow short-circuiting, low screen utilization, and localized blockages caused by uneven initial feeding. When the grain falls through the feed hopper into the air classifier box, the air classifier airflow generated by the fan blows away dust, particulate impurities, or shriveled grains. These impurities are then moved to the arc-shaped screen by the airflow. Dust passes directly through the arc-shaped screen, while particulate impurities or shriveled grains fall through the impurity hopper and are collected. This process not only facilitates the separation of impurities or shriveled grains from the grain but also makes them easy to collect, thus facilitating subsequent processing of the impurities or shriveled grains.
[0015] 2. When the dispersing rod rotates, it drives the drive rod to rotate via sprocket one and chain one. The drive rod drives the annular shell to rotate via a pair of gears five. The annular shell drives a set of auxiliary plates to rotate, and the auxiliary plates rotate in opposite directions to the dispersing plates. When the auxiliary plates and the dispersing plates hit the grain at the same time, they not only generate opposite impact forces, causing the grain to spread in two opposite directions, thus distributing it more evenly and facilitating subsequent air sieving, but the auxiliary plates and the dispersing plates also generate shearing forces, tearing and peeling apart slightly sticky grain clumps, making the grain less likely to clump together. Attached Figure Description
[0016] To facilitate understanding by those skilled in the art, the present invention will be further described below with reference to the accompanying drawings.
[0017] Figure 1 This is a structural diagram of the main body of the present invention; Figure 2 This is a partial structural diagram of the main body of the present invention; Figure 3 This is a structural diagram of the metering plate, reciprocating plate, discharge pipe, and arc-shaped protective shell of the present invention; Figure 4 This is a structural diagram of the arc-shaped protective shell, rack two, gear two, and disintegration plate of the present invention; Figure 5 This is a structural diagram of the discharge pipe, dispersing plate, and auxiliary plate of the present invention; Figure 6 This is an exploded structural diagram of the discharge pipe and the arc-shaped plate of the present invention; Figure 7 This is an exploded structural diagram of the disintegrating rod and annular shell of the present invention; In the diagram: 100, Main unit; 200, Feeding unit; 101, Air screen box; 102, Fan; 103, Arc-shaped screen; 104, Impurity hopper; 105, Grain hopper; 106, Upper screen plate; 107, Lower screen plate; 201, Motor; 202, Sliding trough; 203, Feed shell; 204, Reciprocating shaft; 205, Reciprocating plate; 206, Measuring rod; 207, Measuring plate; 208, Circular shell; 209, Gear 1; 2010, Discharge pipe; 2011, Gear 2; 2012, Rack 2; 2013, Rotating rod; 2014, Arc-shaped plate; 2015, Gear 3; 2 016. Ring rack three; 2017. Disintegrating rod; 2018. Gear four; 2019. Disintegrating plate; 2020. Ring shell; 2021. Auxiliary plate; 2022. Drive rod; 2023. Sprocket one; 2024. Chain one; 2025. Gear five; 2026. Square through slot; 2027. Positive triangle plate; 2028. Reverse triangle plate; 2029. Positive auxiliary block; 2030. Reverse auxiliary block; 2031. Slide plate; 2032. Threaded rod; 2033. Threaded plate; 2034. Arc-shaped protective shell; 301. Vibrating rod; 302. Vibrating ball; 303. Sprocket two; 304. Chain two. Detailed Implementation
[0018] The technical solution of the present invention will be clearly and completely described below with reference to the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0019] Example 1:
[0020] Please see Figures 1-7 As shown, a grain air sieve processing device that facilitates impurity collection includes a main unit 100 and a feeding unit 200. The main unit 100 includes an air sieve box 101 and a pair of fans 102 disposed on one side of the air sieve box 101; an arc-shaped screen 103 is disposed on one side of the outer wall of the air sieve box 101; an impurity hopper 104 is fixedly connected to the top of the outer wall of the arc-shaped screen 103; a grain hopper 105 is disposed at the bottom of the outer wall of the air sieve box 101; an upper screen plate 106 and a lower screen plate 107 are fixedly connected to the inner side wall of the air sieve box 101. The feeding unit 200 includes a motor 201 fixed to one side of the air screen box 101 by a fixing plate; a sliding groove 202 is provided at the top of the outer wall of the air screen box 101; a feeding shell 203 is slidably connected to the inner side wall of the sliding groove 202; a reciprocating shaft 204 is provided at the output end of the motor 201; a reciprocating plate 205 is provided on the outer side wall of the reciprocating shaft 204, and the reciprocating plate 205 is fixedly connected to the feeding shell 203.
[0021] By placing grain into the feed shell 203, the motor 201 drives the reciprocating shaft 204 to rotate, which in turn drives the reciprocating plate 205 to reciprocate. This reciprocating plate 205, in turn, drives the feed shell 203 to reciprocate, causing the grain's drop point to change continuously and regularly. This overcomes the drawbacks of a fixed feed inlet, ensuring the grain enters the air-separating airflow in a uniform and dispersed manner. This maximizes the utilization of the air-separating airflow, minimizes waste, and improves the processing efficiency and consistency of subsequent air-separation and screening processes. It also solves problems such as airflow short-circuiting, low screen surface utilization, and localized blockage caused by uneven initial feeding. This invention improves the sorting accuracy and operational stability. When grain falls from the feed hopper 203 into the air screen box 101, the airflow generated by the blower 102 blows dust, particulate impurities, or shriveled grains in the grain between the grain falling onto the upper screen plate 106. The dust, particulate impurities, or shriveled grains are moved to the arc screen 103 by the wind force. At this time, the dust is directly discharged through the arc screen 103, while the particulate impurities or shriveled grains are collected by falling through the impurity discharge hopper 104. This makes it easy to separate the impurities or shriveled grains from the grain and easy to collect them, thus facilitating subsequent processing of the impurities or shriveled grains.
[0022] A metering rod 206 is rotatably connected to one side of the inner wall of the feed housing 203, and one end of the outer wall of the metering rod 206 extends out of the feed housing 203; a set of metering plates 207 are fixedly connected to the outer wall of the metering rod 206; a circular shell 208 is slidably connected to the outer wall of the metering rod 206, and the circular shell 208 is rotatably connected to the air screen box 101 in a sealed manner; gears 209 are fixedly connected to the outer walls of both the circular shell 208 and the reciprocating shaft 204, and a pair of gears 209 mesh with each other.
[0023] When the reciprocating shaft 204 rotates, it drives the circular shell 208 to rotate via a pair of gears 209. The circular shell 208 drives the metering rod 206 to rotate, and the metering rod 206 drives the metering plate 207 to rotate, so that the grain in the feed shell 203 is metered, ensuring the stability of the amount of grain entering the air sieve box 101 and avoiding the impact of too much or too little feed on the air sieve effect. During the rotation, the metering plate 207 evenly divides the grain in the feed shell 203, so that the grain is fully processed under the action of the air separation airflow. When the feed shell 203 reciprocates, the metering rod 206 contracts or extends within the circular shell 208, so as not to affect the normal operation of the metering rod 206.
[0024] A set of discharge pipes 2010 is rotatably connected to the bottom of the outer wall of the feed shell 203; a gear 2011 is fixedly connected to the outer wall of the discharge pipe 2010; a rack 2012 is fixedly connected to the inner wall of the air screen box 101; a set of gears 2011 meshes with rack 2012.
[0025] When the grain is fed through the metering plate 207, it falls to the bottom of the feed shell 203 and is then discharged through the discharge pipe 2010. The discharge pipe 2010 and its gear 2011 move back and forth with the feed shell 203. Since a set of gears 2011 meshes with rack 2012, and rack 2012 is fixed, the movement of gears 2011 causes the rack 2012 to rotate, thus rotating the discharge pipe 2010. As the grain is discharged through the rotation of the discharge pipe 2010, it gains tangential centrifugal velocity and is thrown out in a parabolic trajectory. During its fall, it naturally disperses, forming a continuous annular curtain of material covering the entire width of the screen surface. Heavier, intact grain is thrown to the outer perimeter, while lighter impurities and chaff, due to the smaller centrifugal force, are concentrated in the middle, forming preliminary separation. This reduces the burden on the subsequent airflow of the air classifier and improves sorting efficiency and accuracy.
[0026] A set of dispersing rods 2017 is rotatably connected to the bottom of the outer wall of the feed shell 203; a set of gears 2018 are fixedly connected to the outer side wall of the set of dispersing rods 2017; the set of gears 2018 meshes with a set of gears 2011 respectively; a set of dispersing plates 2019 are fixedly connected to the outer side wall of the dispersing rods 2017; the dispersing plates 2019 are located below the discharge pipe 2010.
[0027] When gear 2011 rotates, the rotation of gear 2011 drives gear 42018 to rotate dispersing rod 2017. Dispersing rod 2017 drives dispersing plate 2019 to rotate. When the grain in the discharge pipe 2010 is discharged, the dispersing plate 2019 periodically impacts the grain in the discharge state. The instantaneous impact of the dispersing plate 2019 not only breaks up the slightly clumped grain to ensure particle separation, but also effectively shakes off light impurities attached to the surface of the grain. The impact also changes the falling trajectory of the grain, making the grain more dispersed, which further facilitates the subsequent air sieve and improves the accuracy and efficiency of the air sieve.
[0028] A rotating rod 2013 is rotatably connected to the inner wall of the discharge pipe 2010, and one end of the outer wall of the rotating rod 2013 passes through the discharge pipe 2010; a set of arc-shaped plates 2014 are fixedly connected to the outer wall of the rotating rod 2013; a gear 3 2015 is fixedly connected to one end of the outer wall of the rotating rod 2013; a set of annular racks 3 2016 are fixedly connected to the bottom of the outer wall of the feed shell 203 through a set of connecting blocks; the set of annular racks 3 2016 meshes with the set of gears 3 2015 respectively.
[0029] When the discharge pipe 2010 rotates to discharge material, the rotation of the discharge pipe 2010 drives the rotating rod 2013 and the gear 2015 on it to rotate. Because the gear 2015 and the ring rack 2016 mesh with each other, and the ring rack 2016 is fixed to the feed shell 203 by a connecting block, the rotation of the gear 2015 causes the ring rack 2016 to rotate, thereby driving the rotating rod 2013 and the arc plate 2014 to rotate. This causes the grain in the discharge pipe 2010 to be discharged through the rotation of the arc plate 2014, thus allowing the grain to pass through the discharge pipe 2010. The flow rate of the material being fed into the air separator is more precise and stable. The rotation of the arc plate 2014 not only stabilizes the flow rate but also initially mixes and loosens the grain to a certain extent, making the grain more dispersed during its fall. This avoids uneven air separation caused by local accumulation. As a result, this application not only allows the grain to enter the air separation airflow in a uniform and dispersed state, thereby maximizing the utilization of the air separation airflow and improving the air separation effect, but also has the function of automatically separating and collecting impurities, making subsequent impurity processing more convenient and efficient.
[0030] A set of sliding plates 2031 is fixedly connected to one side of the outer wall of the feed shell 203; a set of threaded rods 2032 is rotatably connected to one side of the outer wall of the feed shell 203; threaded plates 2033 are threadedly connected to the outer walls of the set of threaded rods 2032, and the top of the outer walls of the set of threaded plates 2033 are slidably connected to the bottom of the outer walls of the set of sliding plates 2031; an arc-shaped protective shell 2034 is fixedly connected to the bottom of the outer walls of the set of threaded plates 2033, and the set of arc-shaped protective shells 2034 are respectively matched with a set of discharge pipes 2010.
[0031] When the grain is broken up by the auxiliary plate 2021 or the breaking plate 2019, the position of the threaded plate 2033 is adjusted by rotating the threaded rod 2032, so that the threaded plate 2033 drives the arc-shaped protective shell 2034 to move. The arc-shaped protective shell 2034 is moved to a suitable position so that when the grain is broken up, some of the grain that flies towards the arc-shaped screen 103 will be intercepted by the arc-shaped protective shell 2034, thereby preventing the grain from being excessively scattered and moving outside the air screen area, causing waste. In addition, the movement adjustment function of the arc-shaped protective shell 2034 makes it adaptable to different types and characteristics of grain, enhancing the versatility and flexibility of the equipment.
[0032] An annular shell 2020 is rotatably connected to the outer wall of the dispersing rod 2017; a set of auxiliary plates 2021 are fixedly connected to the outer wall of the annular shell 2020; a set of drive rods 2022 are rotatably connected to one side of the outer wall of the feed shell 203 through a set of square blocks; a sprocket 2023 is fixedly connected to the outer walls of both the drive rod 2022 and the dispersing rod 2017, and the two sets of sprockets 2023 are connected to each other through a set of chains 2024; a gear 2025 is fixedly connected to the outer walls of both the annular shell 2020 and the drive rod 2022, and a pair of gears 2025 mesh with each other.
[0033] When the dispersing rod 2017 rotates, it drives the drive rod 2022 to rotate via the sprocket 2023 and chain 2024. The drive rod 2022 drives the annular shell 2020 to rotate via a pair of gears 2025. The annular shell 2020 drives a set of auxiliary plates 2021 to rotate. The auxiliary plates 2021 rotate in the opposite direction to the dispersing plate 2019. When the auxiliary plates 2021 and the dispersing plate 2019 hit the grain at the same time, they not only generate opposite impact forces, causing the grain to spread in two opposite directions, thus distributing it more evenly and facilitating subsequent air sieving, but also generate shearing force from the auxiliary plates 2021 and the dispersing plate 2019, tearing and peeling apart slightly sticky grain clumps, making the grain less prone to clumping.
[0034] A set of auxiliary plates 2021 and dispersing plates 2019 each have a square through groove 2026 on one side of their outer wall; a pair of positive triangles 2027 and a pair of negative triangles 2028 are fixedly connected to the outer wall of the set of auxiliary plates 2021 and dispersing plates 2019 respectively, and the two pairs of positive triangles 2027 and negative triangles 2028 are respectively matched with the two sets of square through grooves 2026; a pair of positive auxiliary blocks 2029 and a pair of negative auxiliary blocks 2030 are fixedly connected to the outer wall of the set of auxiliary plates 2021 and dispersing plates 2019 respectively; the two pairs of positive auxiliary blocks 2029 and negative auxiliary blocks 2030 are respectively matched with the two pairs of positive triangles 2027 and negative triangles 2028.
[0035] When the dispersing plate 2019 and auxiliary plate 2021 impact the grain, some grain is dispersed, while some grain passes through the upward channel on the dispersing plate 2019 and encounters the equilateral triangular plate 2027 and the positive auxiliary block 2029, thus contacting the inclined surface of the positive auxiliary block 2029. The grain then falls down the inclined surface of the auxiliary block onto the equilateral triangular block, and then down the inclined surface of the equilateral triangular block, causing the grain to fall while simultaneously rotating with the dispersing plate 2019. This results in some grain being dispersed by impact, and some grain scattering through the equilateral triangular block and the positive auxiliary block 2029. This coordinated action ensures more even dispersion of the grain during air sieving, allowing impurities to be more thoroughly removed and improving the overall quality of the grain. Meanwhile, the equilateral triangular plate 2027 and the positive auxiliary block 2029 on the auxiliary plate 2021, being opposite to the grain, further disperse it. 9. Different effects are produced. As the dispersing rod 2017 and the annular shell 2020 continue to rotate, the anti-auxiliary block 2030 and anti-triangular plate 2028 on the dispersing plate 2019 face away from the grain, dispersing the grain. The anti-auxiliary block 2030 and anti-triangular plate 2028 on the auxiliary plate 2021 collect the grain, causing it to fall through the inclined surface of the anti-triangular plate 2028. This cycle repeats, causing the grain to continuously change its distribution and density during the dynamic process of dispersing and collecting. This further ensures that the grain enters the air separation airflow area evenly and dispersedly, improving the penetration and effect of the air separation airflow on the grain. This allows the grain to fully accept the screening by the wind, effectively avoiding the problems of dead corners and incomplete screening caused by local accumulation or uneven distribution of grain. During the air screening process, the grain is efficiently separated from impurities, improving the overall quality of the grain after air screening and reducing impurity residue.
[0036] Example 2:
[0037] Please see Figure 2 As shown, a vibrating rod 301 is rotatably connected to one side of the outer wall of the air screen box 101, and one end of the outer wall of each pair of vibrating rods 301 extends into the air screen box 101; the pair of vibrating rods 301 are respectively located below the upper screen plate 106 and the lower screen plate 107; a set of vibrating balls 302 are fixed to the outer walls of each pair of vibrating rods 301 through a set of flexible rods; the pair of vibrating rods 301 and the reciprocating shaft 204 are connected to each other through a second sprocket 303 and a second chain 304.
[0038] The rotation of the reciprocating shaft 204 drives a pair of vibrating rods 301 to rotate via sprocket 303 and chain 304. The vibrating rods 301 drive two sets of vibrating balls 302 to rotate via two sets of flexible rods, which strike the upper screen plate 106 and the lower screen plate 107 respectively, generating vibration. When the grain falls to the upper screen plate 106 after the first air sieve, the vibration force disperses the grain more and makes it less likely for the grain to stick and accumulate on the upper screen plate 106. The vibration also promotes the sliding of the grain on the upper screen plate 106, allowing the grain to fall from the upper screen plate 106 more quickly, thus improving the air sieve efficiency. When the grain falls from the upper screen plate 106 to the lower screen plate 107, the grain undergoes a second air sieve. When the grain falls to the lower screen plate 107, the vibration also promotes sieving and prevents grain adhesion. At the same time, the vibration can further disperse grain particles that may have slightly agglomerated due to the air sieve, ensuring that the grain is also fully and uniformly sieved on the lower screen plate 107.
[0039] In use, the present invention involves placing grain into the feed shell 203. At this time, the motor 201 drives the reciprocating shaft 204 to rotate, which in turn drives the reciprocating plate 205 to reciprocate. The reciprocating plate 205 then drives the feed shell 203 to reciprocate back and forth, causing the grain's drop point to change continuously and regularly. This solves the drawbacks of a fixed feed inlet and allows the grain to enter the air classifier airflow in a uniform and dispersed state, thereby maximizing the utilization of the air classifier airflow and minimizing waste.
[0040] When the reciprocating shaft 204 rotates, it drives the circular shell 208 to rotate via a pair of gears 209. The circular shell 208 drives the metering rod 206 to rotate, and the metering rod 206 drives the metering plate 207 to rotate, so that the grain in the feed shell 203 is metered, ensuring the stability of the amount of grain entering the air sieve box 101 and avoiding the impact of too much or too little feed on the air sieve effect. During the rotation, the metering plate 207 evenly divides the grain in the feed shell 203, so that the grain is fully processed under the action of the air separation airflow. When the feed shell 203 reciprocates, the metering rod 206 contracts or extends within the circular shell 208, so as not to affect the normal operation of the metering rod 206.
[0041] When the grain is fed through the metering plate 207, it falls to the bottom of the feed shell 203 and is then discharged through the discharge pipe 2010. The discharge pipe 2010 and its gear 2011 move back and forth with the feed shell 203. Since a set of gears 2011 meshes with rack 2012, and rack 2012 is fixed, the movement of gears 2011 causes the rack 2012 to rotate, thus rotating the discharge pipe 2010. As the grain is discharged through the rotation of the discharge pipe 2010, it gains tangential centrifugal velocity and is thrown out in a parabolic trajectory. During its fall, it naturally disperses, forming a continuous annular curtain of material covering the entire width of the screen surface. Heavier, intact grain is thrown to the outer perimeter, while lighter impurities and chaff, due to the smaller centrifugal force, are concentrated in the middle, forming preliminary separation. This reduces the burden on the subsequent airflow of the air classifier and improves sorting efficiency and accuracy.
[0042] When the discharge pipe 2010 rotates to discharge material, the rotation of the discharge pipe 2010 drives the rotating rod 2013 and the gear 2015 on it to rotate. Because the gear 2015 and the ring rack 2016 mesh with each other, and the ring rack 2016 is fixed to the feed shell 203 by a connecting block, the rotation of the gear 2015 causes the ring rack 2016 to rotate, thereby driving the rotating rod 2013 and the arc plate 2014 to rotate. This causes the grain in the discharge pipe 2010 to be discharged through the rotation of the arc plate 2014, thus allowing the grain to pass through the discharge pipe 2010. The flow rate of the material being fed into the air separator is more precise and stable. The rotation of the arc plate 2014 not only stabilizes the flow rate but also initially mixes and loosens the grain to a certain extent, making the grain more dispersed during its fall. This avoids uneven air separation caused by local accumulation. As a result, this application not only allows the grain to enter the air separation airflow in a uniform and dispersed state, thereby maximizing the utilization of the air separation airflow and improving the air separation effect, but also has the function of automatically separating and collecting impurities, making subsequent impurity processing more convenient and efficient.
[0043] When gear 2011 rotates, the rotation of gear 2011 drives gear 42018 to rotate dispersing rod 2017. Dispersing rod 2017 drives dispersing plate 2019 to rotate. When the grain in the discharge pipe 2010 is discharged, the dispersing plate 2019 periodically impacts the grain in the discharge state. The instantaneous impact of the dispersing plate 2019 not only breaks up the slightly clumped grain to ensure particle separation, but also effectively shakes off light impurities attached to the surface of the grain. The impact also changes the falling trajectory of the grain, making the grain more dispersed, which further facilitates the subsequent air sieve and improves the accuracy and efficiency of the air sieve.
[0044] When the dispersing rod 2017 rotates, it drives the drive rod 2022 to rotate via the sprocket 2023 and chain 2024. The drive rod 2022 drives the annular shell 2020 to rotate via a pair of gears 2025. The annular shell 2020 drives a set of auxiliary plates 2021 to rotate. The auxiliary plates 2021 rotate in the opposite direction to the dispersing plate 2019. When the auxiliary plates 2021 and the dispersing plate 2019 hit the grain at the same time, they not only generate opposite impact forces, causing the grain to spread in two opposite directions, thus distributing it more evenly and facilitating subsequent air sieving, but also generate shearing force from the auxiliary plates 2021 and the dispersing plate 2019, tearing and peeling apart slightly sticky grain clumps, making the grain less prone to clumping.
[0045] When the dispersing plate 2019 and auxiliary plate 2021 impact the grain, some grain is dispersed, while some grain passes through the upward channel on the dispersing plate 2019 and encounters the equilateral triangular plate 2027 and the positive auxiliary block 2029, thus contacting the inclined surface of the positive auxiliary block 2029. The grain then falls down the inclined surface of the auxiliary block onto the equilateral triangular block, and then down the inclined surface of the equilateral triangular block, causing the grain to fall while simultaneously rotating with the dispersing plate 2019. This results in some grain being dispersed by impact, and some grain scattering through the equilateral triangular block and the positive auxiliary block 2029. This coordinated action ensures more even dispersion of the grain during air sieving, allowing impurities to be more thoroughly removed and improving the overall quality of the grain. Meanwhile, the equilateral triangular plate 2027 and the positive auxiliary block 2029 on the auxiliary plate 2021, being opposite to the grain, further disperse it. 9. Different effects are produced. As the dispersing rod 2017 and the annular shell 2020 continue to rotate, the anti-auxiliary block 2030 and anti-triangular plate 2028 on the dispersing plate 2019 face away from the grain, dispersing the grain. The anti-auxiliary block 2030 and anti-triangular plate 2028 on the auxiliary plate 2021 collect the grain, causing it to fall through the inclined surface of the anti-triangular plate 2028. This cycle repeats, causing the grain to continuously change its distribution and density during the dynamic process of dispersing and collecting. This further ensures that the grain enters the air separation airflow area evenly and dispersedly, improving the penetration and effect of the air separation airflow on the grain. This allows the grain to fully accept the screening by the wind, effectively avoiding the problems of dead corners and incomplete screening caused by local accumulation or uneven distribution of grain. During the air screening process, the grain is efficiently separated from impurities, improving the overall quality of the grain after air screening and reducing impurity residue.
[0046] When the grain is broken up by the auxiliary plate 2021 or the breaking plate 2019, the position of the threaded plate 2033 is adjusted by rotating the threaded rod 2032, so that the threaded plate 2033 drives the arc-shaped protective shell 2034 to move. The arc-shaped protective shell 2034 is moved to a suitable position so that when the grain is broken up, some of the grain that flies towards the arc-shaped screen 103 will be intercepted by the arc-shaped protective shell 2034, thereby preventing the grain from being excessively scattered and moving outside the air screen area, causing waste. In addition, the movement adjustment function of the arc-shaped protective shell 2034 makes it adaptable to different types and characteristics of grain, enhancing the versatility and flexibility of the equipment.
[0047] When the grain falls into the air sieve box 101 through the feed hopper 203, the airflow generated by the blower 102 blows the dust, particulate impurities, or shriveled grains in the grain between the grain falling onto the upper sieve plate 106. The dust, particulate impurities, or shriveled grains are moved to the arc-shaped screen 103 by the airflow. At this time, the dust is directly discharged through the arc-shaped screen 103, while the particulate impurities or shriveled grains are collected by falling through the impurity discharge hopper 104. This makes it easy to separate the impurities or shriveled grains from the grain and easy to collect them, thus facilitating subsequent processing of the impurities or shriveled grains. Similarly, the grain undergoes a secondary air sieve when it falls from the upper sieve plate 106 to the lower sieve plate 107.
[0048] The rotation of the reciprocating shaft 204 drives a pair of vibrating rods 301 to rotate via sprocket 303 and chain 304. The vibrating rods 301 drive two sets of vibrating balls 302 to rotate via two sets of flexible rods, which strike the upper screen plate 106 and the lower screen plate 107 respectively, generating vibration. When the grain falls to the upper screen plate 106 after the first air sieve, the vibration force disperses the grain more and makes it less likely for the grain to stick and accumulate on the upper screen plate 106. The vibration also promotes the sliding of the grain on the upper screen plate 106, allowing the grain to fall from the upper screen plate 106 more quickly, thus improving the air sieve efficiency. When the grain falls from the upper screen plate 106 to the lower screen plate 107, the grain undergoes a second air sieve. When the grain falls to the lower screen plate 107, the vibration also promotes sieving and prevents grain adhesion. At the same time, the vibration can further disperse grain particles that may have slightly agglomerated due to the air sieve, ensuring that the grain is also fully and uniformly sieved on the lower screen plate 107.
[0049] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.
Claims
1. A grain air sieve processing device for easy impurity collection, characterized in that, It includes a main body unit (100) and a feeding unit (200); The main unit (100) includes an air sieve box (101) and a pair of fans (102) disposed on one side of the air sieve box (101); an arc-shaped screen (103) is disposed on one side of the outer wall of the air sieve box (101); an impurity hopper (104) is fixedly connected to the top of the outer wall of the arc-shaped screen (103); a grain hopper (105) is disposed at the bottom of the outer wall of the air sieve box (101); an upper screen plate (106) and a lower screen plate (107) are fixedly connected to the inner side wall of the air sieve box (101). The feeding unit (200) includes a motor (201) fixed to one side of the air screen box (101) by a fixing plate; a sliding groove (202) is provided at the top of the outer wall of the air screen box (101); a feeding shell (203) is slidably connected to the inner side wall of the sliding groove (202); a reciprocating shaft (204) is provided at the output end of the motor (201); a reciprocating plate (205) is provided on the outer side wall of the reciprocating shaft (204), and the reciprocating plate (205) is fixedly connected to the feeding shell (203).
2. The grain air sieve processing equipment for facilitating impurity collection according to claim 1, characterized in that, A metering rod (206) is rotatably connected to one side of the inner wall of the feed housing (203), and one end of the outer wall of the metering rod (206) extends out of the feed housing (203); a set of metering plates (207) is fixedly connected to the outer wall of the metering rod (206); a circular shell (208) is slidably connected to the outer wall of the metering rod (206), and the circular shell (208) is rotatably and sealed to the air screen box (101); gears (209) are fixedly connected to the outer walls of the circular shell (208) and the reciprocating shaft (204), and a pair of gears (209) mesh with each other.
3. The grain air sieve processing equipment for facilitating impurity collection according to claim 2, characterized in that, A set of discharge pipes (2010) is rotatably connected to the bottom of the outer wall of the feed shell (203); a gear two (2011) is fixedly connected to the outer wall of the discharge pipe (2010); a rack two (2012) is fixedly connected to the inner wall of the air screen box (101); a set of gear two (2011) meshes with rack two (2012).
4. The grain air sieve processing equipment for facilitating impurity collection according to claim 3, characterized in that, The inner wall of the discharge pipe (2010) is rotatably connected to a rotating rod (2013), and one end of the outer wall of the rotating rod (2013) passes through the discharge pipe (2010); a set of arc-shaped plates (2014) are fixedly connected to the outer wall of the rotating rod (2013); a gear three (2015) is fixedly connected to one end of the outer wall of the rotating rod (2013); a set of annular rack three (2016) is fixedly connected to the bottom end of the outer wall of the feed shell (203) through a set of connecting blocks; a set of annular rack three (2016) meshes with a set of gear three (2015) respectively.
5. A grain air sieve processing device for facilitating impurity collection according to claim 3, characterized in that, A set of dispersing rods (2017) is rotatably connected to the bottom of the outer wall of the feed shell (203); a set of gears four (2018) is fixedly connected to the outer wall of each set of dispersing rods (2017); the set of gears four (2018) meshes with a set of gears two (2011); a set of dispersing plates (2019) is fixedly connected to the outer wall of the dispersing rods (2017); the dispersing plates (2019) are located below the discharge pipe (2010).
6. A grain air sieve processing device for facilitating impurity collection according to claim 5, characterized in that, The outer wall of the dispersing rod (2017) is rotatably connected to an annular shell (2020); the outer wall of the annular shell (2020) is fixedly connected to a set of auxiliary plates (2021); one side of the outer wall of the feed shell (203) is rotatably connected to a set of drive rods (2022) through a set of square blocks; the outer walls of both the set of drive rods (2022) and the set of dispersing rods (2017) are fixedly connected to sprockets (2023), and the two sets of sprockets (2023) are connected to each other through a set of chains (2024); the outer walls of both the annular shell (2020) and the drive rods (2022) are fixedly connected to gears (2025), and a pair of gears (2025) mesh with each other.
7. A grain air sieve processing device for facilitating impurity collection according to claim 6, characterized in that, A square through groove (2026) is provided on one side of the outer wall of the set of auxiliary plates (2021) and dispersing plates (2019); a pair of positive triangle plates (2027) and negative triangle plates (2028) are fixedly connected to the outer wall of the set of auxiliary plates (2021) and dispersing plates (2019), and the two pairs of positive triangle plates (2027) and negative triangle plates (2028) are respectively matched with the two sets of square through grooves (2026); a pair of positive auxiliary blocks (2029) and negative auxiliary blocks (2030) are fixedly connected to the outer wall of the set of auxiliary plates (2021) and dispersing plates (2019); the two pairs of positive auxiliary blocks (2029) and negative auxiliary blocks (2030) are respectively matched with the two pairs of positive triangle plates (2027) and negative triangle plates (2028).
8. A grain air sieve processing device for facilitating impurity collection according to claim 7, characterized in that, A set of sliding plates (2031) is fixedly connected to one side of the outer wall of the feed shell (203); a set of threaded rods (2032) is rotatably connected to one side of the outer wall of the feed shell (203); a set of threaded plates (2033) are threadedly connected to the outer walls of the set of threaded rods (2032), and the top of the outer wall of the set of threaded plates (2033) is slidably connected to the bottom of the outer wall of the set of sliding plates (2031); an arc-shaped protective shell (2034) is fixedly connected to the bottom of the outer wall of the set of threaded plates (2033), and the set of arc-shaped protective shells (2034) is matched with a set of discharge pipes (2010).
9. A grain air sieve processing device for facilitating impurity collection according to claim 1, characterized in that, A vibrating rod (301) is rotatably connected to one side of the outer wall of the air screen box (101), and one end of the outer wall of each pair of vibrating rods (301) extends into the air screen box (101); the pair of vibrating rods (301) are respectively located below the upper screen plate (106) and the lower screen plate (107); a set of vibrating balls (302) are fixed to the outer walls of each pair of vibrating rods (301) by a set of flexible rods; the pair of vibrating rods (301) and the reciprocating shaft (204) are connected to each other by a second sprocket (303) and a second chain (304).