A screw conveyor system for meal storage

Abstract

This invention relates to the field of meal silo conveying technology and discloses a meal silo screw conveyor system, including a transition silo, a discharge silo on the right side of the transition silo, and a feed silo on the left side of the transition silo. In this meal silo screw conveyor system, to prevent material overflow when using a standard discharge port arrangement, a chute can be opened 300mm from the extension trough or before the final discharge port to collect overflowing material into a container. A section of screw running in the opposite direction to the main screw is installed between the final discharge port and the end of the trough to prevent material accumulation before the final discharge port. In case of failure due to large impurities, a blockage alarm limit switch is installed above the cover plate at the front end of the discharge port. Blockage material impacts the switch's contact surface, controlling the automatic power-off protection of the electrical control system.

Description

Technical Field

[0001] This invention relates to the field of meal storage and conveying technology, specifically to a meal storage and conveying spiral system. Background Technology

[0002] As a crucial piece of equipment for feed companies to store raw materials, steel silos for meal production are essential for the storage and transportation of meal. Meal usage in these silos is frequent and diverse, and the raw materials themselves are complex, placing high demands on the efficiency and stability of the conveying process from the silo to the production workshop. The four-way screw conveyor system for meal silos must strictly meet the requirement of stable meal delivery; otherwise, it will affect the production efficiency of feed companies. If the meal material cannot be stably conveyed within the four-way conveyor, it may cause severe blockages during the conveying process, and unstable conveying may lead to quality problems in the finished product.

[0003] Therefore, the four-screw conveyor system for meal is an important process to prevent material blockage and ensure stable discharge when discharging from meal steel silos. Optimizing the relevant design and improving the four-screw conveyor system for meal is the main method to ensure stable storage and efficient transportation of materials in meal steel silos.

[0004] Combining the above problems, it becomes clear that the existing spiral conveyor systems for meal storage on the market are difficult to avoid simultaneously when in use. Even if they can be solved, they require the assistance of external tools, thus failing to achieve the desired effect. Therefore, a spiral conveyor system for meal storage is proposed. Summary of the Invention

[0005] The purpose of this invention is to provide a screw conveyor system for meal storage to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the present invention provides the following technical solution: a screw conveyor system for meal storage, including a transition silo, a discharge silo is provided on the right side of the transition silo, and a feed silo is provided on the left side of the transition silo;

[0007] The feeding hopper includes a sprocket cover, a sprocket cover plate installed at the top of the sprocket cover, a reducer base plate fixedly connected to the right side of the sprocket cover, a reducer installed on the right side of the reducer base plate, a motor installed on the right side of the reducer, a double-row sprocket fixedly connected to the output end of the reducer through the sprocket cover, a chain meshing on the surface of the double-row sprockets, a three-row sprocket meshing on the upper inner wall of the chain, a pressure roller meshing on the surface of the three-row sprockets, a single-row sprocket meshing on the surface of the pressure roller, a feeding hopper reinforcing brace fixedly connected to the right end of the sprocket cover, a front helical shaft fixedly connected to the right end of the single-row sprocket, a baffle plate installed on the inner wall of the feeding hopper, a connecting plate installed on the top of the feeding hopper, a connecting frame installed on the inner wall of the feeding hopper, a feeding hopper cover plate installed on the top of the feeding hopper, a discharge hopper fixedly connected to the top of the feeding hopper, a funnel fixedly connected to the top of the discharge hopper, and the discharge hopper... The top has a feeding chamber, inside which a feeding block is slidably connected. Grooves are formed on both sides of the feeding chamber. A distribution chamber is formed on the surface of the feeding block. A slider is fixedly connected to the side of the feeding block. A dual-axis motor is fixedly connected to the front of the feeding chamber. A bevel gear one is fixedly connected to the output end of the dual-axis motor. A bevel gear two meshes with the surface of bevel gear one. A lead screw is fixedly connected to the side of bevel gear two away from bevel gear one. The surface of the lead screw is threadedly connected to the slider. The end of the lead screw away from bevel gear two is rotatably connected to the feeding chamber. A feeding port is formed at the bottom of the feeding chamber. Conical locking sprockets are provided inside the single-row, double-row, and triple-row sprockets. The inner wall of each conical locking sprocket is slidably connected to the front spiral shaft. A fastening screw and an ejector screw are threadedly connected to the inner wall of each conical locking sprocket.

[0008] The beneficial effects of adopting the above-mentioned further scheme are as follows: Four parallel U-shaped spiral troughs form the W-shaped bottom of the discharge machine, allowing material to be evenly discharged along the entire width of the trough and fed into the collecting conveyor. The four sets of spirals of the discharge machine use left-handed and right-handed blades, rotating in opposite directions to discharge material along the entire width of the inlet. At this point, the material forms a pyramid shape along the centerline, thus reducing material blockage on the sides. The V-shaped cross-sections on both sides of the trough reduce the adhesion friction between the material and the trough, enhancing discharge efficiency. The discharge port corresponds to the end of the shaft above, employing a spiral blade that rotates in the opposite direction to the rotating blades at the front end of the same shaft. This prevents material from accumulating and clogging at the discharge port end. The opposing thrust generated by the reverse spiral pushes the material into the discharge port more quickly, resulting in higher material conveying efficiency. A discharge hopper is also provided. A dual-shaft motor drives a first bevel gear, which in turn drives a second bevel gear and a lead screw. The lead screw, through a threaded connection, drives a slider, which in turn drives a uniform conveying block fixedly connected to the slider. The material first enters the discharge hopper through a funnel, and then passes through the discharge hopper and the designated partition plate for uniform conveying. The material enters the equalization chamber and is filled by gravity, achieving equal volume distribution. After equalization, the dual-shaft motor moves the equalization blocks towards the downward feeding port. The equalization chamber then enters the area containing the four front-end spiral shafts within the feeding hopper. The rear section of the equalization chamber is solid, preventing further material feeding and ensuring a fixed volume of material fed each time, thus improving the uniformity of the conveying system. The power transmission structure of the four front-end spiral shafts uses conical locking sprockets for the connection between the hub and the front-end spiral shafts, employing a special interference fit to achieve radial and axial fixation. Its basic working principle relies on tightening two fastening bolts to create a clamping force between the hub and the front-end spiral shafts, thereby transmitting load and torque. The structure consists of four main components: a locking sleeve, a hub with a conical inner hole, and two fastening bolts. To highlight the difference between the conical locking sprocket and the ordinary sprocket, the conical locking sprocket structure is improved in the following two aspects: First, the conical surface is designed with a certain cone angle, and an opening groove is set to improve elasticity. Two blind holes are drilled on the left and right sides to leave the boss of the locking sleeve. An ejector screw is also provided to tighten the bolt on the boss of the hub, thereby pushing off the locking sleeve to achieve disassembly. Finally, a fourth hole is required as a dynamic balancing hole. Second, the inner hole of the hub is a conical surface, and two through holes with half-threads are drilled on the left and right sides. When the fastening bolt is tightened, the fastening bolt presses against the two bosses on the conical sleeve, thereby forming a clamping force. Similarly, for the locking sleeve, a blind hole is drilled on the hub, and its boss is used for the ejector bolt to push open the conical sleeve to achieve disassembly. The three holes on the hub need to be distributed at an angle.

[0009] In a preferred embodiment, a hanger is installed on the inner wall of the material feeding hopper, and a connecting shaft is fixedly connected to the inner wall of the bottom end of the hanger.

[0010] The beneficial effects of adopting the above-mentioned further solutions are: by adding hangers and connecting shafts, the structural stability of the material conveying hopper is further improved, ensuring the smoothness and reliability of material transmission.

[0011] In a preferred embodiment, a connecting cover plate is fixedly connected to the outer side of the feeding hopper, and a discharge hopper cover plate is installed at the top of the discharge hopper.

[0012] The beneficial effects of adopting the above-mentioned further solutions are: enhanced structural stability of the system, and improved sealing and safety during material transfer.

[0013] In a preferred embodiment, four front-end spiral shafts are provided, and the four front-end spiral shafts are arranged linearly along the inner wall of the feed bin.

[0014] The beneficial effects of adopting the above-mentioned further solution are: the power transmission structure of the four spiral shafts uses a new type of conical locking sprocket for the connection between the hub and the shaft, and adopts a special form of interference fit, which can achieve radial and axial fixation.

[0015] In a preferred embodiment, a connecting plate two is fixedly connected to the top of the transition chamber, and a rear spiral shaft is fixedly connected to the right side of the front spiral shaft.

[0016] The beneficial effects of adopting the above-mentioned further solution are: the setting of the second connecting plate enhances the structural stability of the system and improves the continuity and reliability of the transmission process.

[0017] In a preferred embodiment, a limit switch is installed on the top of the discharge bin, and a discharge port is opened at the bottom of the discharge bin, with a discharge port flange fixedly connected to the surface of the discharge port.

[0018] The beneficial effects of adopting the above-mentioned further solution are: in order to prevent material overflow when the discharge port is arranged, in case of large impurities, a blockage alarm limit switch is installed above the cover plate at the front end of the discharge port. By blocking the material and hitting the contact surface of the switch, the automatic power-off protection of the electrical control system is controlled.

[0019] In a preferred embodiment, an observation door base is provided on the top of the discharge hopper, and an observation door cover is installed on the top of the discharge hopper.

[0020] The advantages of adopting the above-mentioned further solutions are: it provides convenient operation and inspection conditions. The design of the observation door base and observation door cover allows operators to check the internal condition of the discharge hopper at any time, promptly identify and solve problems, and improve the system's operating efficiency and safety.

[0021] In a preferred embodiment, a discharge bin reinforcing brace is installed on the right inner wall of the discharge bin, a bearing seat plate is fixedly connected to the right side of the discharge bin, a bearing seat is installed at the right end of the bearing seat plate, and the inner wall of the bearing seat is fixedly connected to the surface of the rear screw shaft.

[0022] The beneficial effects of adopting the above-mentioned further solutions are: the design of the discharge hopper reinforcement and bearing housing further improves the overall performance and service life of the system.

[0023] Compared with the prior art, the beneficial effects achieved by the present invention are:

[0024] First, in order to prevent material overflow when the standard discharge port is arranged, in case of large impurities, a blockage alarm limit switch is set above the cover plate at the front end of the discharge port. The automatic power-off protection of the electrical control system is controlled by the blockage material hitting the contact surface of the switch.

[0025] Secondly, this invention includes a feeding bin, which is driven by a dual-shaft motor to rotate a bevel gear one, which in turn drives a bevel gear two and a lead screw. The lead screw, through a threaded connection, drives a slider, which in turn drives a uniform feeding block fixedly connected to the slider. The material first enters the feeding bin through a funnel, and then enters the equalization bin evenly through the feeding bin and the partition plate. Gravity fills the equalization bin, achieving equal volume distribution. After equalization, the dual-shaft motor starts working and moves the equalization block towards the feeding port. The equalization bin enters the area where the four front-end spiral shafts are located in the feeding bin through the feeding port. The rear section of the equalization bin is solid, which will block the feeding bin from continuing to feed, so that the feeding volume is fixed each time, thereby improving the uniformity of the conveying system.

[0026] Third, this invention consists of four parallel U-shaped spiral troughs forming the W-shaped bottom of the discharge machine. Material is evenly discharged along the entire width of the trough and fed into the collecting conveyor. The four spirals of the discharge machine are two sets, left and right, using left-hand and right-hand rotating blades that rotate in opposite directions, discharging material along the entire width of the inlet. At this point, the material forms a pyramid shape along the centerline, thus reducing lateral blockage. The sides of the trough have V-shaped cross-sections, reducing the adhesion friction between the material and the trough, and enhancing discharge efficiency. At the end of the upper shaft corresponding to the discharge port, a section of spiral blades rotates in the opposite direction to the rotating blades at the front end of the same shaft. This prevents material from accumulating and clogging at the discharge port end. The opposing thrust generated by the reverse spirals pushes the material into the discharge port more quickly, resulting in higher material conveying efficiency. Attached Figure Description

[0027] Figure 1 This is a front cross-sectional view of the structure of the present invention;

[0028] Figure 2 This is a top view of the structure of the present invention;

[0029] Figure 3 This is a side sectional view of the structure of the present invention.

[0030] Figure 4 This is a partial structural diagram of the present invention;

[0031] Figure 5 This is a schematic diagram of the evenly divided structure of the present invention;

[0032] Figure 6 This is a schematic diagram of the disassembly of the evenly divided structure of the present invention;

[0033] Figure 7 This is a schematic diagram of the operation of the evenly distributed structure of the present invention;

[0034] Figure 8 This is a cross-sectional view of the conical locking sprocket structure of the present invention;

[0035] Figure 9 This is a schematic diagram of the conical locking sprocket of the present invention.

[0036] Legend:

[0037] 1. Sprocket cover plate; 7. Feed hopper reinforcement support; 8. Feed hopper; 9. Front screw shaft; 10. Baffle plate; 13. Connecting plate one; 14. Connecting frame; 15. Feed hopper cover plate; 16. Hanger; 17. Connecting shaft; 20. Connecting plate two; 21. Rear screw shaft; 22. Limit switch; 23. Observation door base; 24. Observation door cover; 25. Discharge hopper reinforcement support; 28. Bearing seat; 32. Discharge port flange; 33. Discharge hopper; 38. Transition hopper; 39. Motor; 40. Reducer; 41. Reducer base plate; 44. Double row 51. Sprocket; 52. Pressure roller; 53. Three-row sprocket; 54. Single-row sprocket; 55. Sprocket cover; 56. Bearing seat plate; 67. Discharge bin cover plate; 68. Connecting cover plate; 69. Funnel; 60. Discharge chamber; 61. Divider plate; 62. Discharge bin; 63. Equalizing block; 64. Equalizing compartment; 65. Discharge port; 66. Dual-shaft motor; 77. Bevel gear one; 78. Bevel gear two; 79. Slider; 80. Conical locking sprocket; 81. Locking sleeve; 82. Ejector screw; 83. Fastening screw; 84. Hub. Detailed Implementation

[0038] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0039] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a technical solution: a screw conveyor system for meal storage, including a transition bin 38, a discharge bin 33 is provided on the right side of the transition bin 38, and a feed bin 8 is provided on the left side of the transition bin 38;

[0040] The material feeding bin 8 includes a sprocket cover 54. A sprocket cover plate 1 is installed on the top of the sprocket cover 54. A reducer base plate 41 is fixedly connected to the right side of the sprocket cover 54. A reducer 40 is installed on the right side of the reducer base plate 41. A motor 39 is installed on the right side of the reducer 40. A double-row sprocket 44 is fixedly connected to the output end of the reducer 40 through the sprocket cover 54. A chain is meshed on the surface of the double-row sprocket 44. A three-row sprocket 52 is meshed on the upper inner wall of the chain. A pressure roller 51 is meshed on the surface of the three-row sprocket 52. The surface of the feed bin 53 is meshed with a single row of sprockets 53. The right end of the sprocket cover 54 is fixedly connected to a feed bin reinforcing brace 7. The right end of the single row of sprockets 53 is fixedly connected to a front-end spiral shaft 9. A baffle plate 10 is installed on the inner wall of the feed bin 8. A connecting plate 13 is installed on the top of the feed bin 8. A connecting frame 14 is installed on the inner wall of the feed bin 8. A feed bin cover plate 15 is installed on the top of the feed bin 8. A discharge bin 65 is fixedly connected to the top of the discharge bin 8. A funnel 62 is fixedly connected to the top of the discharge bin 65. The top of the discharge bin has a lower opening. The material bin 63 and the feeding bin 65 are internally connected to a uniform feeding block 66. The feeding bin 65 has grooves on both sides. The surface of the uniform feeding block 66 has a uniform distribution chamber 67. A slider 73 is fixedly connected to the side of the uniform feeding block 66. A dual-axis motor 70 is fixedly connected to the front of the feeding bin 65. A bevel gear 71 is fixedly connected to the output end of the dual-axis motor 70. A bevel gear 72 meshes with the surface of the bevel gear 71. A lead screw 74 is fixedly connected to the side of the bevel gear 72 away from the bevel gear 71. The surface of 4 is threadedly connected to the slider 73. The end of the lead screw 74 away from the bevel gear 72 is rotatably connected to the feeding bin 65. The bottom end of the feeding bin 65 is provided with a feeding port 68. Each of the single-row sprocket 53, double-row sprocket 44 and triple-row sprocket 52 is provided with a conical locking sprocket 80. The inner wall of each conical locking sprocket 80 is slidably connected to the front end spiral shaft 9. Each conical locking sprocket 80 is threadedly connected to a fastening screw 83 and an ejector screw 82.

[0041] A hanger 16 is installed on the inner wall of the material feeding hopper 8, and a connecting shaft 17 is fixedly connected to the inner wall of the bottom end of the hanger 16.

[0042] A connecting cover plate 61 is fixedly connected to the outside of the material feeding hopper 8, and a discharge hopper cover plate 60 is installed on the top of the discharge hopper 33.

[0043] There are four front-end spiral shafts 9, which are arranged linearly along the inner wall of the feed bin 8.

[0044] The top of the transition chamber 38 is fixedly connected to the connecting plate 20, and the right side of the front spiral shaft 9 is fixedly connected to the rear spiral shaft 21.

[0045] A limit switch 22 is installed on the top of the discharge bin 33, and a discharge port is opened at the bottom of the discharge bin 33. A discharge port flange 32 is fixedly connected to the surface of the discharge port.

[0046] An observation door base 23 is provided on the top of the discharge hopper 33, and an observation door cover 24 is installed on the top of the discharge hopper 33.

[0047] A discharge bin reinforcing brace 25 is installed on the inner right side of the discharge bin 33. A bearing seat plate 59 is fixedly connected to the right side of the discharge bin 33. A bearing seat 28 is installed at the right end of the bearing seat plate 59. The inner wall of the bearing seat 28 is fixedly connected to the surface of the rear screw shaft 21.

[0048] Working principle: The bottom of the discharge machine is W-shaped, consisting of four parallel U-shaped spiral troughs. The material is evenly discharged along the entire width of the trough and fed into the collecting conveyor. The four sets of spirals of the discharge machine are two sets, left and right, with left-hand and right-hand blades, rotating in opposite directions to discharge the material along the entire width of the feed inlet. At this time, the material is in a pyramid shape along the center line, which can reduce the blockage of the material on the side. The two sides of the trough have a V-shaped cross-section, which reduces the adhesion friction between the material and the trough and enhances the discharge efficiency. At the end of the shaft above the discharge port, a spiral blade rotating in the opposite direction to the front rotating blade on the same shaft is used. This prevents material from accumulating and clogging at the discharge port end. The opposing thrust generated by the reverse spiral pushes the material into the discharge port more quickly, resulting in higher material conveying efficiency. The transmission method is that the geared motor 39 drives the conical locking sprocket 80, and the conical locking sprockets 80 are connected by a chain drive, ultimately driving the front spiral shaft 8 to rotate. The power transmission structure of the four front spiral shafts 8 uses conical locking sprockets 80 for the connection between the hub 84 and the front spiral shaft 8, using a special interference fit to achieve radial and axial fixation. Its basic working principle is to generate a clamping force between the hub 84 and the front spiral shaft 8 by tightening two fastening bolts 83, thereby realizing the transmission of load and torque. The structure consists of four main components: locking sleeve 81, hub 84 with a conical inner hole, and two fastening bolts 83. To highlight the difference between the conical locking sprocket 80 and ordinary sprockets, the structure of the conical locking sprocket 80 is improved in the following two aspects: First, the conical surface is designed with a certain conical angle, and an opening groove is set to improve elasticity. Two blind holes are drilled on the left and right sides to leave the boss of the locking sleeve 81. An ejector screw 82 is also provided to tighten the bolt on the boss of the hub 84, thereby pushing off the locking sleeve 81 to achieve disassembly. Finally, a fourth hole is required as a dynamic balancing hole. Second, the inner hole of the hub 84 is a conical surface, and two through holes with half-thread are drilled on the left and right sides. When the fastening bolt 83 is tightened, the fastening bolt presses against the two bosses on the conical sleeve, thereby forming a clamping force.Similarly, to lock the sleeve 81, a blind hole is drilled in the hub 84, and its boss allows the bolt 82 to push open the tapered sleeve for disassembly. The three holes on the hub 84 need to be distributed at 90 degrees, and the discharge center has a variable distance structure, which can be adjusted according to the process position changes of the meal silo in the production enterprise. Extended screw conveyors typically add a suspension bearing every 2-4 meters or so at the screw shaft. Since the screw blades must disconnect at the suspension bearing, the cross-sectional and length dimensions of the suspension bearing should be as small as possible to prevent material blockage. The suspension bearing is generally a sliding bearing, with its bushing made of bronze, wear-resistant cast iron, bronze alloy, hard alloy, or other wear-resistant materials. The suspension bearing is installed on the angle steel on the upper edge of both sides of the trough, tightened with bolts and two nuts. The suspension bearing seat 28 should be able to move longitudinally on the supporting angle steel, maintaining a floating state; it must not be fixed to the supporting angle steel. When conveying highly abrasive materials, the screw surface near the middle suspension bearing experiences greater thrust; therefore, the screw surface at this point needs to be thickened. For extended screw conveyors, the power system needs to be re-determined based on the conveying length and output, including the corresponding motor power 39 and reducer speed ratio 40, and the required screw blade rotation speed.

[0049] In addition, when the present invention adopts a standard discharge port arrangement, to prevent material overflow, a blockage alarm limit switch 22 is installed above the cover plate at the front end of the discharge port. By blocking material impacting the contact surface of the switch, the automatic power-off protection of the electrical control system is controlled. The power transmission structure of the four front-end spiral shafts 9 uses conical locking sprockets, three rows of sprockets 52 and a single row of sprockets 53 for the connection between the hub and the shaft. It adopts a special interference fit to achieve radial and axial fixation. Its basic working principle is to generate a clamping force between the hub and the shaft by tightening two high-strength bolts, thereby realizing the transmission of load and torque. In addition, the present invention is equipped with a discharge bin 65, which can drive the bevel gear 71 through the dual-shaft motor 70 to drive the bevel gear 2. 72 and lead screw 74 rotate. Lead screw 74 drives slider 73 through threaded connection, which in turn drives the equalizing block 66 fixedly connected to slider 73 to slide. The material first enters the feeding chamber 63 through funnel 62, and then enters the equalizing chamber 67 evenly through feeding chamber 63 and the set partition plate 64. The equalizing chamber 67 is filled by gravity, achieving equal volume distribution. After equalization, the dual-shaft motor 70 starts to work and moves the equalizing block 67 towards the feeding port 68. The equalizing chamber 67 enters the area where the four front-end spiral shafts 9 are located in the feeding bin 8 through the feeding port 68. The rear section of the equalizing chamber 67 is solid, which will block the feeding chamber 63 from continuing to feed, so that the feeding volume is fixed each time, thereby improving the uniformity of the conveying system.

[0050] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screw conveyor system for meal storage, comprising a transition bin (38), characterized in that: A discharge bin (33) is provided on the right side of the transition bin (38), and a feed bin (8) is provided on the left side of the transition bin (38). The feed hopper (8) includes a sprocket cover (54), a sprocket cover plate (1) is installed on the top of the sprocket cover (54), a reducer base plate (41) is fixedly connected to the right side of the sprocket cover (54), a reducer (40) is installed on the right side of the reducer base plate (41), a motor (39) is installed on the right side of the reducer (40), and a double-row sprocket (44) is fixedly connected to the output end of the reducer (40) through the sprocket cover (54). A chain is meshed on the surface of the double-row sprocket (44), and a three-row sprocket (52) is meshed on the upper inner wall of the chain. A pressure roller (51) is meshed on the surface of the three-row sprocket (52). 51) has a single-row sprocket (53) meshing on its surface. The right end of the sprocket cover (54) is fixedly connected to a feed bin reinforcing brace (7). The right end of the single-row sprocket (53) is fixedly connected to a front-end spiral shaft (9). A baffle plate (10) is installed on the inner wall of the feed bin (8). A connecting plate (13) is installed on the top of the feed bin (8). A connecting frame (14) is installed on the inner wall of the feed bin (8). A feed bin cover plate (15) is installed on the top of the feed bin (8). A discharge bin (65) is fixedly connected to the top of the discharge bin (65). A funnel (62) is fixedly connected to the top of the discharge bin (65). A feeding chamber (63) is provided, and a feeding block (66) is slidably connected inside the feeding chamber (65). Slide grooves are provided on both sides of the feeding chamber (65). A distribution chamber (67) is provided on the surface of the feeding block (66). A slider (73) is fixedly connected to the side of the feeding block (66). A dual-axis motor (70) is fixedly connected to the front side of the feeding chamber (65). A bevel gear one (71) is fixedly connected to the output end of the dual-axis motor (70). A bevel gear two (72) meshes with the surface of the bevel gear one (71). A lead screw (74) is fixedly connected to the side of the bevel gear two (72) away from the bevel gear one (71). The surface of the lead screw (74) is threadedly connected to the slider (73). The end of the lead screw (74) away from the bevel gear (72) is rotatably connected to the feeding bin (65). The bottom end of the feeding bin (65) is provided with a feeding port (68). Each of the single-row sprocket (53), double-row sprocket (44) and triple-row sprocket (52) is provided with a conical locking sprocket (80). The inner wall of each conical locking sprocket (80) is slidably connected to the front end spiral shaft (9). The inner wall of each conical locking sprocket (80) is threadedly connected with a fastening screw (83). The inner wall of each conical locking sprocket (80) is threadedly connected with an ejector screw (82).

2. The oilseed meal silo screw conveyor system according to claim 1, characterized in that: The inner wall of the material feeding hopper (8) is equipped with a hanger (16), and a connecting shaft (17) is fixedly connected to the inner wall of the bottom end of the hanger (16).

3. The screw conveyor system for meal storage according to claim 1, characterized in that: A connecting cover plate (61) is fixedly connected to the outside of the feeding bin (8), and a discharge bin cover plate (60) is installed on the top of the discharge bin (33).

4. The oilseed meal silo screw conveyor system according to claim 1, characterized in that: There are four front-end spiral shafts (9), and the four front-end spiral shafts (9) are arranged linearly along the inner wall of the feed bin (8).

5. The screw conveyor system for meal storage according to claim 1, characterized in that: The top of the transition chamber (38) is fixedly connected to a connecting plate two (20), and the right side of the front spiral shaft (9) is fixedly connected to a rear spiral shaft (21).

6. The oilseed meal silo screw conveyor system according to claim 1, characterized in that: A limit switch (22) is installed on the top of the discharge bin (33), and a discharge port is opened at the bottom of the discharge bin (33). A discharge port flange (32) is fixedly connected to the surface of the discharge port.

7. The oilseed meal silo screw conveyor system according to claim 1, characterized in that: The top of the discharge hopper (33) is provided with an observation door base (23), and the top of the discharge hopper (33) is provided with an observation door cover (24).

8. The oilseed meal silo screw conveyor system according to claim 1, characterized in that: The inner wall of the discharge bin (33) is equipped with a discharge bin reinforcing support (25), and a bearing seat plate (59) is fixedly connected to the right side of the discharge bin (33). A bearing seat (28) is installed at the right end of the bearing seat plate (59), and the inner wall of the bearing seat (28) is fixedly connected to the surface of the rear spiral shaft (21).

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