Spiral conveying system of meal bin

Abstract

The invention relates to the technical field of meal bin conveying, and discloses a meal bin spiral conveying system which comprises a transition bin, a discharging bin is arranged on the right side of the transition bin, and a feeding bin is arranged on the left side of the transition bin. According to the spiral conveying system for the meal bin, in order to prevent materials from overflowing when the standard discharging port is adopted, a chute is formed in the position 300 mm away from the extended groove body or in front of the last discharging port to collect the overflowing materials into a container, and a section of spiral opposite to the main spiral in direction is arranged between the last discharging port and the end of the groove body. Therefore, the materials are prevented from being accumulated in front of the final discharge port. In case of failure caused by large impurities and the like, the blockage alarm travel switch is arranged above the cover plate at the front end of the discharge port, and automatic power-off protection of the electric control system is controlled by impacting a contact surface of the switch through blocked materials.

Description

Technical Field

[0001] The invention relates to the technical field of meal silo transportation, and in particular to a meal silo spiral transportation system. Background Art

[0002] Meal steel silo is an important equipment for storing raw materials in feed enterprises. The storage and transportation of meal raw materials is a very important process. The meal used by storage enterprises is frequent and diversified, and the properties of meal raw materials are complex, which puts forward high requirements on the transportation efficiency and stability of meal out of the silo and into the production workshop. The four-way screw conveying system of the meal silo needs to strictly meet the requirements of stable meal out of the silo, otherwise it will affect the production efficiency of the feed production enterprise. If the meal material cannot be stably transported in the four-way silo machine, it may cause serious blockage in the process of conveying the meal material, and also cause unstable transportation of the meal material, resulting in quality problems of the finished product.

[0003] Therefore, the meal quadruple screw conveying system is an important processing procedure to prevent blockage and stabilize the discharge of meal steel silos. Optimizing the relevant design and improving the meal quadruple screw conveying system are the main methods to ensure stable storage and efficient transportation of materials in meal steel silos.

[0004] Combining the above problems, it is found that it is difficult to avoid the above problems at the same time when using the existing meal silo screw conveying system on the market, and even if it can be solved, it needs to be solved through external tools, so the desired effect cannot be achieved. Therefore, a meal silo screw conveying system is proposed. Summary of the invention

[0005] The object of the present invention is to provide a meal bin screw conveying system to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: a meal bin spiral conveying system, comprising a transition bin, a discharge bin is arranged on the right side of the transition bin, and a feeding bin is arranged on the left side of the transition bin; The transmission gear of the present invention is connected with the gear of the transmission gear of the present invention, and the gear of the transmission gear is connected with the gear of the transmission gear of the present invention to the gear of the transmission gear. The top of the gear is connected with the gear to turn the gear to turn the gear, and the bottom of the gear is connected with the gear of the gear to turn the gear. The gear is then connected with the gear of the gear to turn the gear to turn the gear. The gear is then connected with the gear of the gear to turn the gear to turn the gear.

[0007] The beneficial effect of adopting the above further scheme is that four parallel U-shaped spiral troughs form the W-shaped bottom of the warehouse discharge machine, and the material is discharged evenly along the entire width of the trough and fed into the collecting conveyor. The four groups of spirals of the warehouse discharge machine are left and right groups, respectively, with left-handed and right-handed blades, rotating in opposite directions, discharging the material along the entire width of the feed port. At this time, the material is pyramid-shaped in the centerline direction, so that the material can be reduced. The two sides of the trough are V-shaped cross-sections, which reduces the adhesion friction between the material and the trough and enhances the discharge efficiency. The discharge port corresponds to the end of the upper shaft end, and adopts a spiral blade that rotates in the opposite direction to the front rotating blade on the same shaft, which can prevent the material from accumulating and clogging at the end of the discharge port. The thrust in the opposite direction formed by the reverse spiral can push the material into the discharge port faster, forming a higher material conveying efficiency. In addition, a discharge bin is provided, and the double-axis motor can drive the bevel gear one to drive the bevel gear two and the lead screw to rotate. The lead screw drives the slider through the threaded connection and then drives the equalizing block fixedly connected to the slider to slide. The material first enters the discharge bin through the funnel, and is evenly distributed through the discharge bin and the set partition plate. The materials evenly enter the distribution cabin, fill the distribution cabin by gravity, and achieve equal volume distribution. After the distribution is completed, the dual-axis motor starts to work and moves the delivery block toward the lower material port. The distribution cabin enters the area where the four front spiral shafts are located in the feeding bin through the lower material port. The rear section of the distribution cabin is solid, which will block the material discharge cabin from continuing to discharge materials, so that the material discharge volume is fixed each time, thereby improving the uniformity of the conveying system. The power transmission structure of the four front spiral shafts uses a conical locking sprocket for the connection between the hub and the front spiral shaft. The special form of interference fit can achieve radial and axial fixation. Its basic working principle is to generate a clamping force between the hub and the front spiral shaft by tightening the two fastening bolts, thereby realizing the transmission of load and torque. The structure consists of four major components: a locking sleeve, a hub with a conical inner hole, two fastening bolts, and the like. In order to highlight the difference between the tapered locking sprocket and the ordinary sprocket, the tapered locking sprocket structure has been improved in the following two aspects: first, the tapered surface is designed with a certain taper angle, and an open groove is set to improve the elasticity. Two blind holes are drilled on the left and right sides to leave the boss of the locking sleeve. Another ejector screw is provided to tighten the bolts on the boss on the wheel hub to push off the locking sleeve to achieve the purpose of disassembly. Finally, a fourth hole needs to be opened as a dynamic balancing hole. Second, the inner hole of the wheel hub is a tapered surface, and two half-thread threads with through holes are drilled on the left and right sides. When tightening the fastening bolts, the fastening bolts press the two bosses on the tapered sleeve to form a clamping force. Similarly, in order to lock the sleeve, a blind hole is drilled on the wheel hub, and its boss is used for the ejector bolt to push open the tapered sleeve to achieve the purpose of disassembly. The three holes on the wheel hub need to be distributed in degrees.

[0008] As a preferred embodiment, a hanger is installed on the inner wall of the material transport bin, and a connecting shaft is fixedly connected to the inner wall of the bottom end of the hanger.

[0009] The beneficial effect of adopting the above further solution is that by adding a hanger and a connecting shaft, the structural stability of the material silo is further improved, ensuring the stability and reliability of the material transmission process.

[0010] As a preferred embodiment, a connecting cover plate is fixedly connected to the outer side of the feeding bin, and a discharging bin cover plate is installed on the top of the discharging bin.

[0011] The beneficial effects of adopting the above further solution are: enhancing the structural stability of the system and ensuring the sealing and safety during the material transmission process.

[0012] As a preferred embodiment, four front-stage spiral shafts are provided, and the four front-stage spiral shafts are linearly arranged along the inner wall of the silo.

[0013] The beneficial effect of adopting the above further solution is that the power transmission structure of the four spiral shafts adopts a new type of conical locking sprocket for connecting the hub and the shaft, and adopts a special form of interference fit to achieve radial and axial fixation.

[0014] As a preferred embodiment, a connecting plate 2 is fixedly connected to the top of the transition bin, and a rear-section spiral shaft is fixedly connected to the right side of the front-section spiral shaft.

[0015] The beneficial effect of adopting the above further solution is that the provision of the second connecting plate enhances the structural stability of the system and improves the continuity and reliability during the transmission process.

[0016] As a preferred embodiment, a travel switch is installed on the top of the discharge bin, a discharge port is opened at the bottom end of the discharge bin, and a discharge port flange is fixedly connected to the surface of the discharge port.

[0017] The beneficial effect of adopting the above further scheme is: in order to prevent the material from overflowing when the discharge port is arranged, if encountering large impurities, a blockage alarm travel switch is provided above the cover plate at the front end of the discharge port, and the automatic power-off protection of the electronic control system is controlled by blocking the material from hitting the contact surface of the switch.

[0018] As a preferred embodiment, an observation door base is provided on the top of the discharge bin, and an observation door cover is installed on the top of the discharge bin.

[0019] The beneficial effect of adopting the above further scheme is: providing convenient operation and inspection conditions, the design of the observation door base and the observation door cover allows the operator to check the situation inside the discharge silo at any time, discover and solve problems in time, and improve the operating efficiency and safety of the system.

[0020] As a preferred embodiment, a discharging bin reinforcement support is installed on the right inner wall of the discharging bin, a bearing seat plate is fixedly connected to the right side of the discharging bin, a bearing seat is installed on 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 spiral shaft.

[0021] The beneficial effect of adopting the above further solution is that the design of the discharge bin reinforcement support and the bearing seat further improves the overall performance and service life of the system.

[0022] Compared with the prior art, the beneficial effects achieved by the present invention are: First, in order to prevent the material from overflowing when the standard discharge port arrangement is adopted in the present invention, in case of large impurities, a material blocking alarm travel switch is arranged above the cover plate at the front end of the discharge port, and the automatic power-off protection of the electric control system is controlled by blocking the contact surface of the material impacting the switch.

[0023] Second, the present invention is provided with a material discharge bin, which can drive the bevel gear 1 to drive the bevel gear 2 and the lead screw to rotate through a double-axis motor. The lead screw drives the slider through a threaded connection and then drives the equalizing block fixedly connected to the slider to slide. The material first enters the material discharge bin through a funnel, and evenly enters the equalizing bin through the material discharge bin and the arranged partition plate. The equalizing bin is filled by gravity to achieve equal volume distribution. After the equal distribution is completed, the double-axis motor starts to work to move the equalizing block toward the material discharge port. The equalizing bin enters the area where the four front-section spiral shafts in the material discharge bin are located through the material discharge port, and the rear section of the equalizing bin is solid, which will block the material discharge bin from continuing to discharge material, so that the material discharge volume is fixed each time, thereby improving the uniformity of the conveying system.

[0024] Third, the present invention consists of four parallel U-shaped spiral troughs forming the W-shaped bottom of the warehouse discharge machine. The materials are discharged evenly along the entire width of the trough and fed into the collecting conveyor. The four groups of spirals of the warehouse discharge machine are left and right groups, respectively, with left-handed and right-handed blades, which rotate in opposite directions to discharge materials along the entire width of the feed port. At this time, the materials are pyramid-shaped in the centerline direction, so the blockage of the materials on the side can be reduced. The two sides of the trough body are V-shaped cross-sections, which reduces the adhesion friction between the material and the trough body and enhances the discharge efficiency. At the end of the shaft end corresponding to the upper end of the discharge port, a spiral blade that rotates in the opposite direction to the front rotating blade on the same shaft is used to prevent the material from accumulating and clogging at the end of the discharge port. The thrust in the opposite direction formed by the reverse spiral can push the material into the discharge port faster, resulting in higher material transportation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a front cross-sectional view of the structure of the present invention; Figure 2 It is a top view of the structure of the present invention; Figure 3A side cross-sectional view of the structure of the present invention Figure 4 It is a partial structural schematic diagram of the present invention; Figure 5 It is a schematic diagram of the equal distribution structure of the present invention; Figure 6 This is a schematic diagram of the disassembly of the equal-division structure of the present invention; Figure 7 This is a schematic diagram of the operation of the equal distribution structure of the present invention; Figure 8 It is a cross-sectional view of the tapered locking sprocket structure of the present invention; Fig. 9 It is a schematic diagram of a tapered locking sprocket of the present invention.

[0026] Legend: 1. Sprocket cover; 7. Feed bin reinforcement support; 8. Feed bin; 9. Front spiral shaft; 10. Baffle plate; 13. Connecting plate 1; 14. Connecting frame; 15. Feed bin cover; 16. Hanger; 17. Connecting shaft; 20. Connecting plate 2; 21. Rear spiral shaft; 22. Travel switch; 23. Observation door base; 24. Observation door cover; 25. Discharge bin reinforcement support; 28. Bearing seat; 32. Discharge port flange; 33. Discharge bin; 38. Transition bin; 39. Motor; 40. Reducer; 41. Reducer seat plate; 44. Double row Sprocket; 51, pressure wheel; 52, three-row sprocket; 53, single-row sprocket; 54, sprocket cover; 59, bearing seat plate; 60, discharge bin cover; 61, connecting cover; 62, funnel; 63, discharge bin; 64, partition plate; 65, discharge bin; 66, equalizing block; 67, equalizing compartment; 68, discharge port; 70, double-axis motor; 71, bevel gear one; 72, bevel gear two; 73, slider; 74, lead screw; 80, conical locking sprocket; 81, locking sleeve; 82, ejector screw; 83, fastening screw; 84, wheel hub. DETAILED DESCRIPTION

[0027] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention. Example

[0028] like Figure 1 , Figure 2 , Figure 3 As shown, the present invention provides a technical solution: a meal bin spiral conveying system, comprising a transition bin 38, a discharge bin 33 is arranged on the right side of the transition bin 38, and a feed bin 8 is arranged on the left side of the transition bin 38; The 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, and the output end of the reducer 40 passes through the sprocket cover 54 and is fixedly connected to a double-row sprocket 44, a chain is meshed on the surface of the double-row sprocket 44, a three-row sprocket 52 is meshed on the inner wall of the upper end of the chain, a pressure wheel 51 is meshed on the surface of the three-row sprocket 52, and the pressure wheel 51 The surface of the feed bin 8 is meshed with a single-row sprocket 53, the right end of the sprocket cover 54 is fixedly connected to the feed bin reinforcement support 7, the right end of the single-row sprocket 53 is fixedly connected to the front-stage spiral shaft 9, the inner wall of the feed bin 8 is installed with a material blocking plate 10, the top of the feed bin 8 is installed with a connecting plate 13, the inner wall of the feed bin 8 is installed with a connecting frame 14, the top of the feed bin 8 is installed with a feed bin cover plate 15, the top of the feed bin 8 is fixedly connected to a lower feed bin 65, the top of the lower feed bin 65 is fixedly connected to a funnel 62, and the top of the lower feed bin is provided with a lower feed bin. The material chamber 63 and the lower material chamber 65 are slidably connected to an equalizing block 66, and slide grooves are provided on both sides of the lower material chamber 65. An equalizing chamber 67 is provided on the surface of the equalizing block 66, and a slider 73 is fixedly connected to the side of the equalizing block 66. The front side of the lower material chamber 65 is fixedly connected to a double-axis motor 70, and the output end of the double-axis motor 70 is fixedly connected to a bevel gear 1 71, and the surface of the bevel gear 1 71 is meshed with a bevel gear 2 72, and the side of the bevel gear 2 72 away from the bevel gear 1 71 is fixedly connected to a lead screw 74, and the lead screw 74 is fixedly connected to the lead screw 74. The surface of 4 is threadedly connected to the slider 73, and the end of the lead screw 74 away from the bevel gear 72 is rotatably connected to the unloading bin 65. The bottom end of the unloading bin 65 is provided with a unloading port 68. The single-row sprocket 53, the double-row sprocket 44 and the triple-row sprocket 52 are all provided with conical locking sprockets 80. The inner wall of each conical locking sprocket 80 is slidably connected to the front end spiral shaft 9, and the inner wall of each conical locking sprocket 80 is threadedly connected to a fastening screw 83, and the inner wall of each conical locking sprocket 80 is threadedly connected to a ejection screw 82.

[0029] A hanger 16 is installed on the inner wall of the material storage bin 8 , and a connecting shaft 17 is fixedly connected to the inner wall of the bottom end of the hanger 16 .

[0030] A connecting cover plate 61 is fixedly connected to the outer side of the feeding bin 8 , and a discharging bin cover plate 60 is installed on the top of the discharging bin 33 .

[0031] Four front-stage spiral shafts 9 are provided, and the four front-stage spiral shafts 9 are linearly arranged along the inner wall of the silo 8 .

[0032] The top of the transition bin 38 is fixedly connected with a connecting plate 20 , and the right side of the front screw shaft 9 is fixedly connected with a rear screw shaft 21 .

[0033] A travel switch 22 is installed on the top of the discharge bin 33 , and a discharge port is provided at the bottom of the discharge bin 33 , and a discharge port flange 32 is fixedly connected to the surface of the discharge port.

[0034] An observation door base 23 is provided on the top of the discharge bin 33 , and an observation door cover 24 is installed on the top of the discharge bin 33 .

[0035] The right inner wall of the discharge bin 33 is provided with a discharge bin reinforcement support 25, the right side of the discharge bin 33 is fixedly connected with a bearing seat plate 59, the right end of the bearing seat plate 59 is provided with a bearing seat 28, and the inner wall of the bearing seat 28 is fixedly connected with the surface of the rear spiral shaft 21. Working principle: The W-shaped bottom of the warehouse discharge machine is composed of 4 parallel U-shaped spiral troughs. The materials are discharged evenly along the entire width of the trough and fed into the collecting conveyor. The 4 groups of spirals of the warehouse discharge machine are left and right groups with left-handed and right-handed blades, which rotate in opposite directions and discharge the materials along the entire width of the feed port. At this time, the materials are pyramid-shaped in the center line direction, so the blockage of the materials on the side can be reduced. The two sides of the trough are V-shaped cross-sections, which reduces the adhesion friction between the material and the trough and enhances the discharge efficiency. The discharge port corresponds to the end of the shaft end above, and a spiral blade that rotates in the opposite direction to the front rotating blade on the same shaft is used to prevent the material from accumulating and clogging at the end of the discharge port. The thrust in the opposite direction formed by the reverse spiral can push the material into the discharge port faster, forming a higher material conveying efficiency. The transmission form is that the reduction motor 39 drives the conical locking sprocket 80, and the conical locking sprocket 80 is chain-driven, which finally drives the front spiral shaft 8 to rotate. The power transmission structure of the four front spiral shafts 8 uses a conical locking sprocket 80 for the connection between the hub 84 and the front spiral shaft 8, and adopts a special form of 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 the two fastening bolts 83, thereby realizing the transmission of load and torque. The structure consists of four major components: a locking sleeve 81, a hub 84 with a conical inner hole, and two fastening bolts 83. In order to highlight the difference between the tapered locking sprocket 80 and the ordinary sprocket, the structure of the tapered locking sprocket 80 is improved in the following two aspects: first, the tapered surface is designed with a certain taper angle, an open 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, and a push-out screw 82 is set to tighten the boss on the wheel hub 84 to push off the locking sleeve 81 to achieve the purpose of disassembly, and finally a fourth hole is opened as a dynamic balancing hole. Second, the inner hole of the wheel hub 84 is a tapered surface, and two half-thread threads with through holes are drilled on the left and right sides. When tightening the fastening bolt 83, the fastening bolt presses the two bosses on the tapered sleeve, thereby forming a clamping force.Similarly, in order to lock the sleeve 81, a blind hole is drilled on the hub 84, and the boss is used for the ejector bolt 82 to push the cone sleeve to achieve the purpose of disassembly. The three holes on the hub 84 need to be distributed at 90 degrees, and the discharge center can be variable in distance. According to the changes in the process position of the meal bin of the production enterprise, For extended screw conveyors, a suspension bearing is generally added to the screw shaft every 2-4 meters or so. Since the spiral blades must be disconnected at the suspension bearing, in order to prevent the material from being blocked here, the cross-sectional dimensions and length dimensions of the suspension bearing should be as small as possible. The suspension bearing generally adopts a sliding bearing, and its bushing is made of bronze, anti-friction cast iron, bronze alloy, cemented carbide or other wear-resistant materials. The suspension bearing is installed on the angle steel on the upper edge of the two side walls of the machine slot and is tightened by bolts and two nuts. The suspension bearing seat 28 should be able to move longitudinally on the supporting angle steel and maintain a floating state. The suspension bearing seat 28 must not be fixed on the supporting angle steel. When conveying materials with greater abrasiveness, the thrust of the spiral surface close to the middle suspension bearing is greater, so the spiral surface here needs to be thickened. For the extended screw conveyor, its power system needs to redetermine the corresponding motor 39 power and reducer 40 speed ratio according to the conveying length and output, and calculate the required spiral blade speed, etc. In addition, when the present invention adopts the standard discharge port arrangement, in order to prevent the material from overflowing, a material blocking alarm travel switch 22 is arranged above the cover plate at the front end of the discharge port. By blocking the material from hitting the contact surface of the switch, the automatic power-off protection of the electronic control system is controlled. The power transmission structure of the four front-stage spiral shafts 9 adopts a conical locking sprocket three-row sprocket 52 and a single-row sprocket 53 for the connection between the hub and the shaft. The special form of interference fit is adopted 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 provided with a lower bin 65, which can drive the bevel gear 1 71 through the dual-axis motor 70 to drive the bevel gear 2 72 and the lead screw 74 rotate, the lead screw 74 drives the slider 73 through the threaded connection and then drives the equalizing block 66 fixedly connected to the slider 73 to slide, the material first enters the discharge chamber 63 through the funnel 62, and evenly enters the equalizing chamber 67 through the discharge chamber 63 and the set partition plate 64, and fills the equalizing chamber 67 through the action of gravity to achieve equal volume distribution. After the equal distribution is completed, the dual-axis motor 70 starts to work to move the equalizing block 67 toward the discharge port 68, and the equalizing chamber 67 enters the area where the four front-section spiral shafts 9 in the feeding bin 8 are located through the discharge port 68, and the rear section of the equalizing chamber 67 is solid, which will block the discharge chamber 63 from continuing to discharge materials, so that the discharge volume of each time is fixed, thereby improving the uniformity of the conveying system.

[0036] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations may be made to the embodiments without departing from the principles and spirit thereof, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A meal bin screw conveying system, 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 material transport bin (8) is provided on the left side of the transition bin (38); The feeding bin (8) comprises 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), an output end of the reducer (40) passes through the sprocket cover (54) and is fixedly connected to a double-row sprocket (44), a chain is meshed on the surface of the double-row sprocket (44), a three-row sprocket (52) is meshed on the inner wall of the upper end of the chain, a pressure wheel (51) is meshed on the surface of the three-row sprocket (52), and the pressure wheel (51) is meshed on the surface of the pressure wheel ( A single-row sprocket (53) is meshed on the surface of the sprocket cover (54), the right end of the sprocket cover (54) is fixedly connected to a feed bin reinforcement support (7), the right end of the single-row sprocket (53) is fixedly connected to a front-stage spiral shaft (9), the inner wall of the feed bin (8) is installed with a material baffle plate (10), the top of the feed bin (8) is installed with a connecting plate 1 (13), the inner wall of the feed bin (8) is installed with a connecting frame (14), the top of the feed bin (8) is installed with a feed bin cover plate (15), the top of the feed bin (8) is fixedly connected to a lower feed bin (65), the top of the lower feed bin (65) is fixedly connected to a funnel (62), and the top of the lower feed bin A material lowering chamber (63) is provided, a feeding block (66) is slidably connected to the interior of the material lowering chamber (65), slide grooves are provided on both sides of the material lowering chamber (65), a dividing chamber (67) is provided on the surface of the feeding block (66), a sliding block (73) is fixedly connected to the side of the feeding block (66), a double-axis motor (70) is fixedly connected to the front side of the material lowering chamber (65), a bevel gear 1 (71) is fixedly connected to the output end of the double-axis motor (70), a bevel gear 2 (72) is meshed on the surface of the bevel gear 1 (71), and a lead screw (74) is fixedly connected to the side of the bevel gear 2 (72) away from the bevel gear 1 (71), The surface of the lead screw (74) is threadedly connected to the slider (73), and one end of the lead screw (74) away from the second bevel gear (72) is rotatably connected to the material discharge bin (65). A material discharge port (68) is provided at the bottom end of the material discharge bin (65). Conical locking sprockets (80) are arranged in the single-row sprocket (53), the double-row sprocket (44) and the triple-row sprocket (52). The inner wall of each conical locking sprocket (80) is slidably connected to the front spiral shaft (9), the inner wall of each conical locking sprocket (80) is threadedly connected to a fastening screw (83), and the inner wall of each conical locking sprocket (80) is threadedly connected to an ejection screw (82).

2. A meal silo screw conveying system according to claim 1, characterized in that: A hanger (16) is installed on the inner wall of the material feeding bin (8), and a connecting shaft (17) is fixedly connected to the inner wall of the bottom end of the hanger (16).

3. The meal silo screw conveying system according to claim 1, characterized in that: A connecting cover plate (61) is fixedly connected to the outer side of the feeding bin (8), and a discharging bin cover plate (60) is installed at the top of the discharging bin (33).

4. The meal silo screw conveying system according to claim 1, characterized in that: Four front-stage spiral shafts (9) are provided, and the four front-stage spiral shafts (9) are linearly arranged and distributed along the inner wall of the silo (8).

5. The meal silo screw conveying system according to claim 1, characterized in that: A second connecting plate (20) is fixedly connected to the top of the transition bin (38), and a rearward spiral shaft (21) is fixedly connected to the right side of the front spiral shaft (9).

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

7. The meal silo screw conveying system according to claim 1, characterized in that: An observation door base (23) is provided on the top of the discharge bin (33), and an observation door cover (24) is installed on the top of the discharge bin (33).

8. The meal silo screw conveying system according to claim 1, characterized in that: A discharging bin reinforcing support (25) is installed on the right inner wall of the discharging bin (33), a bearing seat plate (59) is fixedly connected to the right side of the discharging bin (33), a bearing seat (28) is installed on 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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