Pneumatic distributing device for grain at top of granary

Abstract

The invention relates to the technical field of distributors, and discloses a bin top grain pneumatic distributor which comprises a feeding assembly and a material guiding assembly installed on the bottom face of the feeding assembly, four sets of discharging bins are hinged to the bottom of the material guiding assembly, and an inclination angle adjusting assembly is installed on the side wall of the material guiding assembly. The inclination angles of the four sets of discharging bins are adjusted at the bottom of the material guiding assembly through the lifting motion of the inclination angle adjusting assembly. Transmission assemblies are rotationally connected to the two sides of each discharging bin, material turning assemblies are slidably installed on the two inner sides of each discharging bin correspondingly, and material pushing plates of the material turning assemblies are driven by the transmission assemblies to do reciprocating motion along the flow guide grooves to stir the grains in the middle high-speed area to the two sides and push the grains accumulated in the low-speed areas on the two sides to the middle. Unbalanced distribution of grain flow velocity in the diversion trench is broken through, grain particles are ensured to flow synchronously, the grain particles are distributed uniformly when thrown into a bin from a material distributor, and the layering phenomenon caused by flow velocity difference is effectively avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of distributors, and particularly to a pneumatic distributor for grain on the top of a silo. Background Art

[0002] The pneumatic distributor for grain is mainly used to evenly distribute grain into a silo, and realizes the uniform distribution of grain in the silo by changing the distribution direction, adjusting the spreading range, etc. After retrieval, the publication number is CN220536993U, which discloses a distributor for a large-diameter silo, including a feed inlet installed at the top of the silo, and a distribution component communicating with the bottom of the feed inlet for distributing grain into the silo; the distribution component includes a rotary distributor connected to the bottom end of the feed inlet, and the bottom end of the rotary distributor extends into the silo. By using a motor and a transmission mechanism to drive the rotary distributor to rotate inside the distributor housing, the outlets of the rotary distributor are respectively communicated with different distribution distributors, so that the grain inside the rotary distributor can enter the long distribution pipe or the short distribution pipe through the distribution distributor, and then be discharged through the discharge ports on the long distribution pipe or the short distribution pipe and evenly fall into the silo.

[0003] However, the existing distributors for warehousing still have the following problems:

[0004] During the process of grain flow, the existing distributor lacks effective flow rate adjustment and mixing devices. During the process of guiding the grain, due to the hydrodynamic characteristics, the flow rate in the middle area is fast and the flow rate on both sides is slow, which easily leads to the stratification of grain particles with different particle sizes and densities. For example, large grain particles are concentrated in the middle area, and small and light particles are piled up on both sides. At the same time, for caking-prone grains (such as damp wheat), the existing distributor cannot effectively depolymerize them, affecting the uniformity of distribution and the quality of the grain.

[0005] Moreover, during the process of grain transportation, the distributor mainly relies on gravity and a simple guiding structure, lacking macroscopic airflow disturbance and microscopic mechanical mixing devices. For grains that are prone to stratification (such as a mixture of paddy and rice husks), they cannot be fully mixed, resulting in uneven grain quality in the silo and affecting subsequent processing and storage.

[0006] Therefore, it is necessary to provide a pneumatic distributor for grain on the top of a silo to solve the above problems. Summary of the Invention

[0007] The purpose of the present invention is to provide a technical solution to solve the problems in the above-mentioned background art.

[0008] To achieve the above purpose, the present invention adopts the following technical solutions:

[0009] A pneumatic grain distributor for the top of a silo, comprising a feeding component and a material guiding component installed on the bottom surface of the feeding component. The feeding component is rotatably connected in an installation component through a driving component. Four discharging bins are respectively hinged to the bottom of the material guiding component.

[0010] An inclination adjusting component, which is installed on the side wall of the material guiding component. The four discharging bins adjust the inclination angle at the bottom of the material guiding component through the lifting movement of the inclination adjusting component.

[0011] On both sides of each discharging bin, there is a transmission component rotatably connected. On the inner two sides of the discharging bin, there is a material turning component slidably installed. The material turning component includes a pushing plate, a guiding rod, a limiting disc and a spring. The inner side wall of the pushing plate is an arc part. On both sides and the bottom of the pushing plate, there are folding plates integrally formed. The folding plates are slidably connected in the sliding grooves opened on the two side walls of the discharging bin. On both sides of the pushing plate, there are sliding columns respectively fixed. The sliding columns are respectively slidably installed on the side wall of the discharging bin. The end of the sliding column is fixedly installed with the limiting disc. The spring is extruded and sleeved on the sliding column between the limiting disc and the side wall of the discharging bin. The center of the side wall of the pushing plate is fixedly connected with a sliding column. The end of the sliding column is slidably connected with the transmission component.

[0012] Preferably, the transmission component includes a blade cylinder, a chain transmission mechanism, a shaft rod and an inclined disc. A notch is opened at the feeding end of the discharging bin. The blade cylinder is rotatably installed in the notch. The two ends of the blade cylinder are respectively key-connected with one end of the chain transmission mechanism through a rotating shaft. The other end of the chain transmission mechanism is key-connected with one end of the shaft rod. The shaft rod is rotatably connected on both sides of the discharging bin. The inclined discs are respectively installed on the other ends of the shaft rods. The end of the sliding column is rotatably connected with a steel ball. The sliding column is slidably connected to the side wall of the inclined disc through the steel ball.

[0013] Preferably, the material guiding component includes a material guiding cylinder and a shielding cover. The top surface of the material guiding cylinder is fixedly installed with the feeding component. A material guiding port is respectively opened in a circle on the bottom side wall of the material guiding cylinder. On the side wall of the material guiding cylinder located in a circle of the material guiding port, there is a shielding cover fixedly installed. The ends of the discharging bins are respectively hinged to the bottom surface of the material guiding cylinder located below the material guiding port. A conical base is integrally formed at the bottom end of the material guiding cylinder.

[0014] Preferably, a diversion groove is opened on the top surface of the discharging bin. One end of the diversion groove is set as a buffer area, and the other end is a discharging port. The widths of the buffer area and the discharging port are greater than the width of the diversion groove. A rotating rod is installed at one end of the discharging bin. The side wall of the rotating rod is rotatably connected with a third hinge seat. The third hinge seat is installed on the bottom surface of the conical base.

[0015] Preferably, the inclination angle adjusting assembly includes a fixed seat, an electric push rod, a piston rod, a moving ring, a first hinge seat, a pull rod and a second hinge seat. Fixed seats are respectively installed on the two side walls of the material guiding cylinder. The electric push rod is installed on the fixed seat. The bottom end of the piston rod of the electric push rod is fixedly installed on the top surface of the moving ring. The moving ring is sleeved on the side wall of the material guiding cylinder. The first hinge seats are respectively fixedly connected to the bottom surface of the moving ring. The second hinge seats are respectively fixed on the side walls of the discharge bin. The first hinge seat and the second hinge seat are respectively hinged to both ends of the pull rod.

[0016] Preferably, the feeding assembly includes a feeding hopper and a vertical cylinder. The cross section of the feeding hopper is conical. The top surface of the vertical cylinder is integrally formed with the feeding hopper. The bottom surface of the vertical cylinder is fixedly installed with the material guiding cylinder. A first fixing ring is fixedly installed on the side wall of the vertical cylinder. The first fixing ring is rotationally connected to the mounting assembly through a plurality of first ball bearings.

[0017] Preferably, the driving assembly includes a toothed ring, a bevel gear and a driving motor. The toothed ring is fixedly installed on the side wall of the feeding hopper. The side wall of the bevel gear is meshed with the toothed ring. The inside of the bevel gear is key-connected to the output shaft of the gearbox. The input shaft of the gearbox is transmission-connected to the output shaft of the driving motor through a belt transmission mechanism. The driving motor and the gearbox are both fixedly installed on the top surface of the granary through mounting seats.

[0018] Preferably, the mounting assembly includes a mounting disc, a fixing rod, a mounting ring and a conductive slip ring. The top surface of the mounting disc is rotationally connected to the first fixing ring through a plurality of first ball bearings. One ends of a plurality of fixing rods are respectively fixedly installed on the bottom of the mounting disc in a circle. The other ends of the fixing rods are fixedly installed with the mounting ring. A conductive slip ring is installed inside the mounting ring. The conductive slip ring supplies power to the inclination angle adjusting assembly.

[0019] Preferably, a rotating ring is fixedly connected to the side wall of the vertical cylinder. A gas guiding assembly is rotationally installed on the side wall of the rotating ring. The gas guiding assembly includes a second fixing ring. The second fixing ring is fixedly installed on the bottom of the mounting disc through a threaded fastener. Grooves are formed on the top surface and the bottom surface of the rotating ring and the inside of the second fixing ring. A plurality of second ball bearings are installed in the grooves. The rotating ring is rotationally connected to the second fixing ring through a plurality of ball bearings. A gas guiding cavity is provided between the side wall of the rotating ring and the inside of the second fixing ring. A plurality of gas guiding holes are formed on the side wall of the rotating ring. The plurality of gas guiding holes extend from the inside of the rotating ring to the inner side wall of the vertical cylinder. An air inlet nozzle is installed on the side wall of the second fixing ring. The air inlet nozzle is communicated with the gas guiding cavity.

[0020] Preferably, the plurality of gas guiding holes formed on the inner side wall of the vertical cylinder are inclined downward.

[0021] Technical effects and advantages of the present invention: Compared with the prior art, the pneumatic distributor for grain on the silo roof proposed by the present invention has the following advantages:

[0022] 1. The present invention adopts a special design of the guide trough of the discharge bin that is wide at both ends and narrow in the middle. The grain is first buffered in the buffer zone and then accelerated in the guide trough, and the grain flow rate is effectively adjusted by changing the width. At the same time, the push plate of the turning component is driven by the transmission component to reciprocate along the guide trough, pushing the grain in the middle high-speed area to both sides, and pushing the grain accumulated in the low-speed areas on both sides to the middle, breaking the uneven distribution of grain flow rate in the guide trough, ensuring that the grain particles flow synchronously, and are evenly distributed when thrown from the distribution machine into the bin, effectively avoiding the stratification phenomenon caused by the difference in flow rate, and greatly improving the uniformity and quality of the distribution;

[0023] 2. The present invention realizes a three-dimensional mixing effect combining macroscopic airflow disturbance with microscopic mechanical mixing through the synergistic effect of the air guide component and the material turning component. The air guide component uses external compressed air to form a spiral airflow, which disturbs the grain flow in three dimensions, breaks the trend of particle separation, and applies different aerodynamic resistances to particles of different particle sizes and densities to promote mixing; the material turning component fully mixes large and small particles through mechanical turning to prevent the accumulation of light particles. The combination of the two can not only solve the mixing problem of easily stratified grains such as rice and rice husks, but also deagglomerate easily agglomerated grains such as damp wheat, effectively improving the uniformity of grain mixing, ensuring the consistency of grain quality in the granary, and laying a good foundation for subsequent processing and storage. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the overall structure of the pneumatic distributor of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the feeding assembly and the driving assembly of the present invention;

[0026] Figure 3 It is a structural schematic diagram of the installation assembly of the present invention;

[0027] Figure 4 It is a schematic structural diagram of a cross-section of a material guide assembly of the present invention;

[0028] Figure 5 It is a structural schematic diagram of the tilt angle adjustment assembly of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the discharge bin and the transmission assembly of the present invention;

[0030] Figure 7 It is a schematic structural diagram of a cutaway view of a discharge bin of the present invention;

[0031] Figure 8 It is a structural schematic diagram of the material turning assembly of the present invention;

[0032] Figure 9 This is a schematic cross-sectional view of the air guiding component of the present invention.

[0033] In the figure:

[0034] 1. Feeding component; 11. Feeding hopper; 12. First fixing ring; 13. First ball; 14. Vertical cylinder; 15. Rotating ring;

[0035] 2. Driving component; 21. Tooth ring; 22. Bevel gear; 23. Gear box; 24. Belt drive mechanism; 25. Driving motor; 26. Mounting seat;

[0036] 3. Mounting component; 31. Mounting disc; 32. Fixed rod; 33. Mounting ring; 34. Conductive slip ring;

[0037] 4. Air guiding component; 41. Second fixing ring; 42. Groove; 43. Second ball; 44. Air guiding hole; 45. Air guiding cavity;

[0038] 5. Material guiding component; 51. Material guiding cylinder; 52. Conical base; 53. Material guiding port; 54. Baffle;

[0039] 6. Inclination adjustment component; 61. Fixed seat; 62. Electric push rod; 63. Piston rod; 64. Moving ring; 65. First hinge seat; 66. Pull rod; 67. Second hinge seat;

[0040] 7. Discharge bin; 71. Buffer zone; 72. Flow guiding groove; 73. Discharge port; 74. Rotating rod;

[0041] 8. Transmission component; 81. Blade cylinder; 82. Driving sprocket; 83. Chain; 84. Driven sprocket; 85. Shaft rod; 86. Swash plate;

[0042] 9. Material turning component; 91. Pushing plate; 92. Arc part; 93. Folding plate; 94. Slide post; 95. Guide rod; 96. Limit disc; 97. Spring. Detailed implementation manners

[0043] Now, the subject matter described herein will be discussed with reference to exemplary embodiments. It should be understood that discussing these embodiments is only to enable those skilled in the art to better understand and thus implement the subject matter described herein. Without departing from the scope of protection of the content of this specification, changes can be made to the functions and arrangements of the elements discussed. Each example can omit, substitute, or add various processes or components as needed. Additionally, the features described in some examples can also be combined in other examples.

[0044] Please refer to Figures 1-9 , the embodiments provided by the present invention:

[0045] Example 1

[0046] As Figure 1 and Figure 2 shown, a pneumatic grain distributor for the top of a bin includes a feeding component 1 and a material guiding component 5 installed on the bottom surface of the feeding component 1. The feeding component 1 includes a feeding hopper 11 and a vertical cylinder 14. The cross-section of the feeding hopper 11 is conical. The top surface of the vertical cylinder 14 is integrally formed with the feeding hopper 11. The bottom surface of the vertical cylinder 14 is fixedly installed with a material guiding cylinder 51. A first fixing ring 12 is fixedly installed on the side wall of the vertical cylinder 14. The first fixing ring 12 is rotatably connected to the installation component 3 through a plurality of first ball bearings 13. Grains enter from the feeding hopper 11. Due to the conical shape of the feeding hopper 11, the grains can accelerate and fall into the vertical cylinder 14. The first fixing ring 12 on the side wall of the vertical cylinder 14 rotates on the installation component 3 through the first ball bearings 13, enabling the feeding component 1 to rotate around the central axis, thereby changing the cloth distribution direction.

[0047] It should be noted that, as Figure 4 shown, the material guiding component 5 includes a material guiding cylinder 51 and a shielding cover 54. The top surface of the material guiding cylinder 51 is fixedly installed with the feeding component 1. A material guiding opening 53 is respectively formed in a circle on the bottom side wall of the material guiding cylinder 51. Shielding covers 54 are respectively fixedly installed on the side walls of the material guiding cylinder 51 located in a circle of the material guiding opening 53. The end parts of the discharge bins 7 are respectively hinged on the bottom surface of the material guiding cylinder 51 below the material guiding opening 53. A conical base 52 is integrally formed at the bottom end of the material guiding cylinder 51. After the grains enter the material guiding cylinder 51 from the vertical cylinder 14, they enter each discharge bin 7 through the material guiding openings 53 on the side wall of the material guiding cylinder 51. The shielding cover 54 prevents the grains from overflowing during the material guiding process. The conical base 52 guides the grains to flow towards the discharge bins 7 and provides a hinge point for the discharge bins 7, thereby distributing the grains to multiple discharge bins 7 and realizing multi-directional cloth distribution.

[0048] As Figure 5 and Figure 6 shown, four groups of discharge bins 7 are respectively hinged at the bottom of the material guiding component 5. A diversion groove 72 is formed on the top surface of the discharge bin 7. One end of the diversion groove 72 is set as a buffer area 71, and the other end is a discharge port 73. The widths of the buffer area 71 and the discharge port 73 are greater than the width of the diversion groove 72. A rotating rod 74 is installed at one end of the discharge bin 7. The side wall of the rotating rod 74 is rotatably connected to a third hinge seat. The third hinge seat is installed on the bottom surface of the conical base 52. After the grains enter the discharge bin 7, they are buffered in the buffer area 71 first, then accelerated through the diversion groove 72, and finally thrown out from the discharge port 73. The change in the width of the diversion groove 72 (wide at both ends and narrow in the middle) can adjust the flow rate of the grains, thereby controlling the flow path and speed of the grains and ensuring uniform cloth distribution.

[0049] As Figure 8As shown, turning components 9 are slidably installed on both inner sides of the discharge bin 7. The turning component 9 includes a pusher plate 91, guide rods 95, limit discs 96, and springs 97. The inner side wall of the pusher plate 91 is an arc portion 92. Folding plates 93 are integrally formed on both sides and the bottom of the pusher plate 91. The folding plates 93 are slidably connected in the sliding grooves opened on the side walls of both sides of the discharge bin 7. Slide columns 94 are fixedly connected to both sides of the pusher plate 91 respectively. The slide columns 94 are slidably installed on the side walls of the discharge bin 7 respectively. The ends of the slide columns 94 are fixedly installed with the limit discs 96. The springs 97 are extrusion sleeved on the slide columns 94 between the limit discs 96 and the side walls of the discharge bin 7. A slide column 94 is fixedly connected to the center of the side wall of the pusher plate 91. The end of the slide column 94 is slidably connected with the transmission component 8.

[0050] As Figure 6 and Figure 7 shown, transmission components 8 are rotatably connected to both sides of each discharge bin 7. The transmission component 8 includes a blade cylinder 81, a chain transmission mechanism, a shaft rod 85, and an inclined disc 86. A notch is opened at the feeding end of the discharge bin 7. The blade cylinder 81 is rotatably installed in the notch. Both ends of the blade cylinder 81 are key-connected to one end of the chain transmission mechanism through rotating shafts respectively. The other end of the chain transmission mechanism is key-connected to one end of the shaft rod 85. The chain transmission mechanism includes a driving sprocket 82 and a driven sprocket 84. The driving sprocket 82 is drivingly connected to the driven sprocket 84 through a chain 83. Both ends of the blade cylinder 81 are key-connected to the inside of the driving sprocket 82 respectively. The shaft rod 85 is key-connected to the inside of the driven sprocket 84. The shaft rod 85 is rotatably connected to both sides of the discharge bin 7. The inclined discs 86 are respectively installed on the other ends of the shaft rods 85. Steel balls are rotatably connected to the ends of the slide columns 94. The slide columns 94 are slidably connected to the side walls of the inclined discs 86 through the steel balls.

[0051] When the grain passes through the notch at the feeding end of the discharge bin 7, it impacts the blade cylinder 81 and causes it to rotate. The blade cylinder 81 drives the shaft rod 85 to rotate through the chain transmission mechanism. The inclined disc 86 on the shaft rod 85 rotates accordingly. The inclined disc 86 cooperates with the slide columns 94 of the turning component 9 to convert the rotational motion into the linear reciprocating motion of the slide columns 94, converting the kinetic energy of the grain flow into mechanical motion, providing power for the turning component 9 without an additional power source;

[0052] When the grain flows in the diversion chute 72, due to the hydrodynamic characteristics, the flow velocity in the middle area is fast, while the flow velocity on both sides is slow. Therefore, the inner side of the pusher plate 91 is an arc portion 92, and there are folding plates 93 on both sides and the bottom that match the shape of the diversion chute 72. When the sliding column 94 is pushed forward, the pusher plate 91 slides forward along the diversion chute 72. The arc portion 92 deflects the grain in the middle high-speed area to both sides, and at the same time, pushes the grain accumulated in the low-speed areas on both sides towards the middle. After the inclined disk 86 rotates half a week, the sliding column 94 moves in the reverse direction due to the reset of the spring 97, and the pusher plate 91 resets, completing a cycle. The reciprocating motion of the pusher plate 91 breaks the originally stable velocity distribution in the diversion chute 72, so that the grain particles are no longer dominated by the fixed velocity field. Through mechanical agitation, the large particles in the middle are fully mixed with the small particles on both sides. The continuous agitation prevents the light particles from accumulating on both sides, ensuring that all particles flow synchronously. As a result, when the grain is sprinkled from the distributor into the bin, it can be evenly distributed to prevent the occurrence of layering phenomena.

[0053] Further, as Figure 2 shown, the driving assembly 2 includes a toothed ring 21, bevel gears 22 and a driving motor 25. The toothed ring 21 is fixedly installed on the side wall of the feed hopper 11. The side wall of the bevel gear 22 is meshed and connected with the toothed ring 21. The inside of the bevel gear 22 is key-connected to the output shaft member of the gearbox 23. The input shaft of the gearbox 23 is drivenly connected to the output shaft of the driving motor 25 through a belt transmission mechanism 24. The driving motor 25 and the gearbox 23 are both fixedly installed on the top surface of the granary through a mounting seat 26. The driving motor 25 drives the gearbox 23 through the belt transmission mechanism 24, and the output shaft of the gearbox 23 drives the bevel gear 22 to rotate. The bevel gear 22 meshes with the toothed ring 21 on the side wall of the feed hopper 11, causing the entire feeding assembly 1 to rotate, providing power for the rotation of the distributor, and realizing all-round feeding.

[0054] The installation assembly 3 includes a mounting disc 31, fixing rods 32, a mounting ring 33 and a conductive slip ring 34. The top surface of the mounting disc 31 is rotationally connected to the first fixing ring 12 through a plurality of first balls 13. One end of each fixing rod 32 is fixedly installed at the bottom of the mounting disc 31 in a circle, and the other end of the fixing rod 32 is fixedly installed with the mounting ring 33. The conductive slip ring 34 is installed inside the mounting ring 33 and supplies power to the inclination adjustment assembly 6. The mounting disc 31 is rotationally connected to the first fixing ring 12 of the feeding assembly 1 through the first balls 13, and the fixing rods 32 and the mounting ring 33 provide a support structure. The conductive slip ring 34 supplies power to the inclination adjustment assembly 6, allowing power transmission in a rotating state.

[0055] Embodiment 2

[0056] As Figure 5As shown in the figure, on the basis of Embodiment 1, in order to be able to change the throwing range of the grain so as to better evenly distribute the grain in the granary, the inclination angle adjusting assembly 6 is installed on the side wall of the material guiding assembly 5. The four discharge bins 7 adjust the inclination angle at the bottom of the material guiding assembly 5 through the lifting movement of the inclination angle adjusting assembly 6. Specifically, the inclination angle adjusting assembly 6 includes a fixed seat 61, an electric push rod 62, a piston rod 63, a moving ring 64, a first hinge seat 65, a pull rod 66 and a second hinge seat 67. Fixed seats 61 are respectively installed on the two side walls of the material guiding cylinder 51. The electric push rod 62 is installed on the fixed seat 61. The bottom end of the piston rod 63 of the electric push rod 62 is fixedly installed on the top surface of the moving ring 64. The moving ring 64 is sleeved on the side wall of the material guiding cylinder 51. The first hinge seats 65 are respectively fixedly connected to the bottom surface of the moving ring 64. The second hinge seats 67 are respectively fixed on the side walls of the discharge bins 7. The first hinge seat 65 and the second hinge seat 67 are respectively hinged to both ends of the pull rod 66.

[0057] The electric push rod 62 pushes the piston rod 63, causing the moving ring 64 to move up and down on the material guiding cylinder 51. The moving ring 64 is connected to the discharge bin 7 through the pull rod 66. When the moving ring 64 moves up and down, the pull rod 66 pulls the discharge bin 7 to rotate around the hinge point, changing the inclination angle of the discharge bin 7, adjusting the inclination angle of the discharge bin 7, changing the throwing range and direction of the grain, adapting to different granary shapes and cloth feeding requirements, and improving the cloth feeding uniformity.

[0058] Embodiment 3

[0059] As Figure 9 shown in the figure, on the basis of Embodiment 1 and Embodiment 2, in order to prevent the grain to be cloth-fed from being stratified in the material guiding assembly 5, a rotating ring 15 is fixedly connected to the side wall of the vertical cylinder 14. A gas guiding assembly 4 is rotatably installed on the side wall of the rotating ring 15. The gas guiding assembly 4 includes a second fixed ring 41. The second fixed ring 41 is fixedly installed on the bottom of the mounting plate 31 through threaded fasteners. Grooves 42 are formed on the top surface and bottom surface of the rotating ring 15 and the inner side of the second fixed ring 41. A number of second balls 43 are installed in the grooves 42. The rotating ring 15 is rotatably connected to the second fixed ring 41 through a number of balls. A gas guiding cavity 45 is provided between the side wall of the rotating ring 15 and the inner side of the second fixed ring 41. A plurality of gas guiding holes 44 are formed on the side wall of the rotating ring 15. The plurality of gas guiding holes 44 extend from the inside of the rotating ring 15 to the inner side wall of the vertical cylinder 14. An air inlet nozzle is installed on the side wall of the second fixed ring 41. The air inlet nozzle is communicated with the gas guiding cavity 45. The opening directions of the plurality of gas guiding holes 44 on the inner side wall of the vertical cylinder 14 are obliquely downward.

[0060] External compressed air enters the air guide cavity 45 through the air inlet nozzle. The gas forms a circular air flow in the air guide cavity 45, which is evenly distributed, and then is sprayed obliquely downward into the interior of the vertical cylinder 14 through the air guide holes 44 on the side wall of the rotating ring 15, forming a certain angle with the direction of grain flow. Since the rotating ring 15 rotates with the feeding assembly 1, the spraying direction is spiral relative to the grain flow path, forming a three-dimensional disturbance effect. The spraying direction of the air guide holes 44 also rotates accordingly, forming a spiral air flow. The spraying direction is spiral relative to the grain flow path, forming a three-dimensional disturbance effect. The high-speed air flow impacts the grain flow, breaks the separation trend caused by the velocity difference of particles, applies different degrees of aerodynamic resistance to particles of different particle sizes and densities, promotes mixing, and the air guide assembly 4 provides air flow disturbance at the macroscopic level, and the material turning assembly 9 realizes mechanical mixing at the microscopic level. The combination of the two forms a three-dimensional mixing effect, which is especially suitable for grains that are prone to stratification, such as the mixture of paddy and rice husk, and has a depolymerization effect on grains that are prone to caking (such as damp wheat).

[0061] The embodiments of the present invention have been described above, but the present invention is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of the present invention, those of ordinary skill in the art can also make many forms, all of which fall within the protection scope of the present invention.

Claims

1. A pneumatic grain distributor for the top of a silo, comprising a feeding component (1) and a material guiding component (5) installed on the bottom surface of the feeding component (1), wherein the feeding component (1) is rotationally connected in an installation component (3) through a driving component (2), and is characterized in that, Four groups of discharge bins (7) are respectively hinged to the bottom of the material guiding assembly (5); An inclination angle adjusting assembly (6), the inclination angle adjusting assembly (6) is installed on the side wall of the material guiding assembly (5), and the four groups of discharge bins (7) adjust the inclination angle at the bottom of the material guiding assembly (5) through the lifting movement of the inclination angle adjusting assembly (6); Driving assemblies (8) are rotatably connected to both sides of each discharge bin (7), turning assemblies (9) are respectively slidably installed on the inner sides of both sides of the discharge bin (7), the turning assembly (9) includes a pushing plate (91), a guiding rod (95), a limiting disc (96) and a spring (97), the inner side wall of the pushing plate (91) is an arc portion (92), folding plates (93) are integrally formed on both sides and the bottom of the pushing plate (91), the folding plates (93) are slidably connected in sliding grooves opened on the side walls of both sides of the discharge bin (7), sliding columns (94) are respectively fixedly connected to both sides of the pushing plate (91), the sliding columns (94) are respectively slidably installed on the side walls of the discharge bin (7), the ends of the sliding columns (94) are fixedly installed with the limiting disc (96), the spring (97) is extrusion sleeved on the sliding columns (94) between the limiting disc (96) and the side wall of the discharge bin (7), a sliding column (94) is fixedly connected to the center of the side wall of the pushing plate (91), and the end of the sliding column (94) is slidably connected to the driving assembly (8).

2. The pneumatic grain distributor for the top of the bin according to claim 1, characterized in that, The driving assembly (8) includes a blade cylinder (81), a chain transmission mechanism, a shaft rod (85) and an inclined disc (86), a notch is opened at the feeding end of the discharge bin (7), the blade cylinder (81) is rotatably installed in the notch, both ends of the blade cylinder (81) are respectively key-connected to one end of the chain transmission mechanism through a rotating shaft, the other end of the chain transmission mechanism is key-connected to one end of the shaft rod (85), the shaft rod (85) is rotatably connected to both sides of the discharge bin (7), the inclined discs (86) are respectively installed on the other ends of the shaft rod (85), a steel ball is rotatably connected to the end of the sliding column (94), and the sliding column (94) is slidably connected to the side wall of the inclined disc (86) through the steel ball.

3. The pneumatic grain distributor at the top of the bin according to claim 1, characterized in that, The material guiding assembly (5) includes a material guiding cylinder (51) and a shielding cover (54), the top surface of the material guiding cylinder (51) is fixedly installed with the feeding assembly (1), material guiding openings (53) are respectively opened in a circle on the bottom side wall of the material guiding cylinder (51), shielding covers (54) are respectively fixedly installed on the side walls of the material guiding cylinder (51) located in a circle of the material guiding openings (53), the end parts of the discharge bins (7) are respectively hinged to the bottom surface of the material guiding cylinder (51) located below the material guiding openings (53), and a conical base (52) is integrally formed at the bottom end of the material guiding cylinder (51).

4. The pneumatic grain distributor for the top of a bin according to claim 3, characterized in that, A guide groove (72) is provided on the top surface of the discharge bin (7), one end of the guide groove (72) is provided as a buffer zone (71), the other end of the guide groove (72) is a discharge port (73), the widths of the buffer zone (71) and the discharge port (73) are greater than the width of the guide groove (72), a rotating rod (74) is installed at one end of the discharge bin (7), a side wall of the rotating rod (74) is rotatably connected to a third hinge seat, and the third hinge seat is installed on the bottom surface of the conical base (52).

5. The pneumatic grain distributor at the top of the silo according to claim 3, characterized in that The inclination adjustment assembly (6) comprises a fixed seat (61), an electric push rod (62), a piston rod (63), a movable ring (64), a first hinge seat (65), a pull rod (66) and a second hinge seat (67). The side walls of the guide barrel (51) are respectively installed with fixed seats (61). The electric push rod (62) is installed on the fixed seat (61). The bottom end of the piston rod (63) of the electric push rod (62) is fixedly installed on the top surface of the movable ring (64). The movable ring (64) is sleeved on the side wall of the guide barrel (51). The first hinge seat (65) is respectively fixedly connected to the bottom surface of the movable ring (64). The second hinge seat (67) is respectively fixed to the side wall of the discharge bin (7). The first hinge seat (65) and the second hinge seat (67) are respectively hinged to the two ends of the pull rod (66).

6. The pneumatic grain distributor for the silo top according to claim 3, wherein, The feed assembly (1) comprises a feed hopper (11) and a vertical cylinder (14); the feed hopper (11) has a conical cross-section; the top surface of the vertical cylinder (14) is integrally formed with the feed hopper (11); the bottom surface of the vertical cylinder (14) is fixedly mounted to a guide cylinder (51); a first fixing ring (12) is fixedly mounted on a side wall of the vertical cylinder (14); the first fixing ring (12) is rotatably connected to the mounting assembly (3) via a plurality of first balls (13).

7. The pneumatic grain distributor for the top of the silo according to claim 6, characterized in that, The driving assembly (2) comprises a gear ring (21), a bevel gear (22) and a driving motor (25); the gear ring (21) is fixedly mounted on the side wall of the feed hopper (11); the side wall of the bevel gear (22) is meshingly connected to the gear ring (21); the interior of the bevel gear (22) is key-connected to the output shaft of the gear box (23); the input shaft of the gear box (23) is drivingly connected to the output shaft of the driving motor (25) via a belt transmission mechanism (24); and the driving motor (25) and the gear box (23) are both fixedly mounted on the top surface of the granary via a mounting seat (26).

8. The pneumatic grain distributor for the top of the silo according to claim 6, characterized in that, The mounting assembly (3) comprises a mounting plate (31), a fixing rod (32), a mounting ring (33) and a conductive slip ring (34); the top surface of the mounting plate (31) is rotatably connected to the first fixing ring (12) via a plurality of first balls (13); a circle of the bottom of the mounting plate (31) is fixedly mounted to one end of the fixing rod (32); the other end of the fixing rod (32) is fixedly mounted to the mounting ring (33); a conductive slip ring (34) is mounted on the inner side of the mounting ring (33); the conductive slip ring (34) supplies power to the tilt adjustment assembly (6).

9. The pneumatic grain distributor for the top of a silo according to claim 8, characterized in that, A rotating ring (15) is fixedly connected to the side wall of the hanging cylinder (14). A gas guiding assembly (4) is rotatably installed on the side wall of the rotating ring (15). The gas guiding assembly (4) includes a second fixing ring (41), and the second fixing ring (41) is fixedly installed on the bottom of the mounting plate (31) through a threaded fastener. Grooves (42) are formed on the top surface, bottom surface of the rotating ring (15) and the inner side of the second fixing ring (41). A number of second balls (43) are installed in the grooves (42). The rotating ring (15) is rotatably connected to the second fixing ring (41) through a number of balls. A gas guiding cavity (45) is provided between the side wall of the rotating ring (15) and the inner side of the second fixing ring (41). A plurality of air guiding holes (44) are formed in the side wall of the rotating ring (15), and the plurality of air guiding holes (44) extend from the inside of the rotating ring (15) to the inner side wall of the hanging cylinder (14). An air inlet nozzle is installed on the side wall of the second fixing ring (41), and the air inlet nozzle is communicated with the gas guiding cavity (45).

10. A pneumatic grain distributor on the top of a bin according to claim 9, characterized in that, The opening directions of the plurality of air guiding holes (44) located on the inner side wall of the hanging cylinder (14) are obliquely downward.

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