Screw conveyer

Abstract

The utility model relates to the technical field of conveying equipment, in particular to a spiral conveyor which comprises a shell of a U-shaped structure, a spiral blade rotationally sleeved in the shell and a first motor driving the spiral blade to rotate, a discharging hopper is arranged at the top of the shell, the top end of the discharging hopper is installed at the bottom end of the shell, the discharging hopper is communicated with the shell, and the first motor is connected with the shell. A discharging hopper is arranged in the shell, a star-shaped discharger is arranged below the discharging hopper, the feeding end of the star-shaped discharger is communicated with the bottom end of the discharging hopper, a weighing sensor is arranged below the star-shaped discharger, a support is arranged on one side of the weighing sensor and installed on the shell, and the star-shaped discharger and the weighing sensor are installed on the shell through the support. The utility model provides a screw conveyer which improves the accuracy of material metering and weighing, simplifies the processing efficiency and the synchronization difficulty, and is used for overcoming the defects in the prior art.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying equipment, in particular to a screw conveyor. Background Art

[0002] The screw conveyor is a conveying equipment that is frequently used in the agricultural processing industry. The screw conveyor consists of a feed port, a housing, a discharge port, a spiral blade, a transmission system and other components. The working principle of the screw conveyor is to use the rotating spiral blade to push and convey the material. The force that prevents the material from rotating with the spiral blade is the material's own gravity and the friction resistance generated by the auger housing on the material. The spiral blades can be divided into two types: left-handed and right-handed. For spiral blades in the same spiral direction, as long as the direction of rotation of the spiral blade is changed, the direction of the material conveyed by the screw conveyor will be reversed. The screw conveyor has many significant features, such as a small cross-section, excellent sealing, intermediate loading and unloading of materials at multiple locations, and simple operating procedures. These features make the screw conveyor particularly suitable for transporting powdered, granular or small block materials. In addition, the screw conveyor can also stir and mix the materials during the conveying process, so it is sometimes used as an accessory of other agricultural machinery and equipment.

[0003] According to their external shapes, screw conveyors can be divided into U-shaped screw conveyors and cylindrical screw conveyors. Both cylindrical screw conveyors and U-shaped screw conveyors can be used in horizontal or inclined material conveying methods with an angle of no more than 20 degrees. Since the sealing performance of cylindrical screw conveyors is better than that of U-shaped screw conveyors, cylindrical screw conveyors are selected when materials need to be transported vertically. However, although U-shaped screw conveyors are not suitable for vertical material transportation, materials can be easily added during transportation by opening the cover on the top of the U-shaped screw conveyor. For this reason, U-shaped screw conveyors can meet various transportation requirements. The screw conveyor measures the volume and weight of the conveyed material according to the number of turns of the spiral blade, that is, by recording the number of turns of the spiral blade and the speed of the spiral blade, the volume of the material conveyed by the screw conveyor is calculated, and then combined with the density of the material, the weight of the material is obtained. However, since the size of the gap between the materials is difficult to accurately control, this also causes a deviation between the actual weight of the material conveyed by the screw conveyor and the weight of the material calculated, thereby reducing the accuracy of the conveyed material. In addition, the conveying efficiency of the screw conveyor should be adjusted synchronously according to the operating efficiency of the downstream production equipment. However, since the motor of the screw conveyor is located at the feed point, it is relatively far away from the downstream processing equipment, which makes the synchronous adjustment of efficiency more troublesome. Therefore, there is room for improvement in the accuracy of the weight of the material being measured and conveyed and in simplifying the synchronous adjustment of the processing efficiency, so as to improve the agricultural processing efficiency and facilitate the promotion of the product in the market. Summary of the invention

[0004] In view of the deficiencies in the prior art, the utility model provides a screw conveyor which improves the accuracy of material metering and weighing and simplifies the synchronization difficulty of processing efficiency, so as to overcome the defects in the prior art.

[0005] The technical solution adopted by the utility model is: a screw conveyor, including a shell with a U-shaped structure, a spiral blade rotatably mounted in the shell and a first motor for driving the spiral blade to rotate, a discharge hopper is arranged on the top of the shell, the top of the discharge hopper is installed on the bottom end of the shell, the discharge hopper is connected with the shell, a star-shaped discharger is arranged below the discharge hopper, the feed end of the star-shaped discharger is connected with the bottom end of the discharge hopper, a weighing sensor is arranged below the star-shaped discharger, a bracket is arranged on one side of the weighing sensor, the bracket is installed on the shell, and the star-shaped discharger and the weighing sensor are installed on the shell through the bracket.

[0006] Preferably, a plurality of cover plates are arranged at the top end of the shell, and the plurality of cover plates are sequentially installed on the top surface of the shell along the central axis direction of the spiral blades, a feed trough is provided on the cover plate adjacent to the first motor, a feed hopper is provided above the feed trough, the feed hopper is connected with the shell through the feed trough, a wing frame is mounted on the bottom end of the feed hopper, the inner wall of the wing frame is mounted on the feed hopper, and limit strips are respectively arranged on both sides of the wing frame, the limit strip adopts an inverted L-shaped plate structure, the bottom end of the limit strip is mounted on the cover plate, the wing frame is located between the cross plate of the limit strip and the cover plate, screws are respectively arranged on both sides of the wing frame, the bottom end of the screw is mounted on the wing frame, a limit slot is provided on the cross plate of the limit strip, the screw is mounted in the limit slot, the part of the screw that passes through the limit slot is threadedly mounted with a first nut, the outer diameter of the first nut is not less than the slot width of the limit slot, and the wing frame and the screw are clamped on the limit strip by the first nut.

[0007] Preferably, the shell is provided with two wing plates, which are respectively installed on both sides of the top end of the shell, and a clamping plate is provided on one side of the cover plate, and the clamping plate is a plate-shaped structure made of elastic material, and the clamping plate comprises a connecting portion and a clamping portion, the top end of the connecting portion is installed on one end of the cover plate, and the bottom end of the connecting portion is connected to the clamping portion. The distance between the clamping portion and the cover plate first decreases and then increases along the direction close to the other side of the cover plate, and one of the wing plates is clamped between the shell and the clamping portion; the other side of the cover plate and the wing plate are both provided with a plurality of fixing grooves, and the plurality of fixing grooves are equidistantly provided on the other side of the cover plate or the wing plate, and one end of the plurality of fixing grooves is opened to the outer wall of the cover plate or the outer wall of the wing plate, and a first bolt is provided between the cover plate and the wing plate, and the fixing groove provided on the cover plate and the fixing groove provided on the other wing plate are both mounted on the first bolt, the diameter of the first bolt is consistent with the groove width of the fixing groove, the thread on the first bolt is mounted on the second nut, and the cover plate and the other wing plate are located between the nut of the first bolt and the second nut.

[0008] Preferably, the cover plate is provided with two handles, which are respectively installed on both sides of the top surface of the shell, and both handles adopt an N-shaped rod structure.

[0009] Preferably, a first flange is provided on the weighing end of the weighing sensor and the discharging end of the star-shaped discharger, respectively, and the weighing sensor is connected to the star-shaped discharger via the first flange.

[0010] Preferably, a cloth pipe is arranged between the discharge hopper and the star-shaped discharger, the star-shaped discharger is connected with the discharge hopper through the cloth pipe, and second flanges are respectively arranged at both ends of the cloth pipe, the bottom end of the discharge hopper and the top end of the star-shaped discharger, and the cloth pipe is connected with the discharge hopper or the star-shaped discharger through the second flange.

[0011] The beneficial effects of the utility model are as follows: first, the utility model drives the spiral blade to rotate by running the first motor, thereby pushing the material in the shell to be transported toward the discharge hopper, so that the material in the shell is transported to the feed end of the star-shaped discharger through the discharge hopper, and the star-shaped discharger, the material transported in the star-shaped discharger, and the material accumulated at the feed end of the star-shaped discharger are weighed by the set weighing sensor, so as to facilitate the measurement of the weight of the transported material, so as to improve the accuracy of the transported material. In addition, the motor speeds of the first motor and the star-shaped discharger can be adjusted, and the transport efficiency of the star-shaped discharger is adjusted according to the efficiency requirements of the material transport of the downstream processing equipment, and then the transport efficiency of the first motor is adjusted according to the numerical value of the measured weight fed back by the weighing sensor, so as to control the transport speed of the spiral blade and the star-shaped discharger to be synchronized with the processing efficiency of the downstream processing equipment, so as to simplify the difficulty of synchronizing the processing efficiency.

[0012] Secondly, the utility model clamps the wing frame and the feed hopper on the limit bar by setting the first nut and the screw, and adjusts the position of the first nut clamping the wing frame and the screw to adjust the installation position of the feed hopper on the cover plate to meet the requirements of various feeds. In addition, the utility model can clamp one side of the cover plate on one of the wing plates by setting the clamping plate, and clamp the other side of the cover plate on the other wing plate by setting the fixing groove on the other side of the cover plate and the wing plate and setting the first bolt and the second nut. Therefore, when installing the cover plate, only one side of the shell needs to be stood on to complete the installation operation, that is, one side of the cover plate is inserted from one of the wing plates by pulling, and then the other side of the cover plate is installed on the other wing plate by using the first bolt and the second nut, and there is no need to perform the installation operation on both sides of the shell, so as to reduce the burden of the cover plate installation operation. In addition, the utility model sets two handles on the cover plate, and uses both hands to hold the two handles respectively, so as to carry the cover plate to move, so as to assist in completing the loading and unloading operation of the cover plate.

[0013] Thirdly, the utility model facilitates the use of a weighing sensor to support the star-shaped discharger by setting a first flange, so that the weighing sensor is used to measure the weight of the star-shaped discharger, and it is convenient to load and unload the weighing sensor and the star-shaped discharger, so as to facilitate the maintenance of the weighing sensor and the star-shaped discharger. In addition, the utility model connects the star-shaped discharger and the discharge hopper by setting a pipe, so as to guide the material discharged from the discharge hopper to be transported into the star-shaped discharger, and stores the material discharged from the discharge hopper but not into the star-shaped discharger, so as to avoid the grain above the star-shaped discharger from sliding down, and prevent the material discharged from the discharge hopper from flying, thereby improving the stability of material transportation. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the utility model.

[0015] Figure 2 for Figure 1 A magnified schematic diagram of center A.

[0016] Figure 3 It is an assembly explosion diagram of the shell, cover plate and feed bin in the utility model. DETAILED DESCRIPTION

[0017] like Figures 1 to 3As shown, a screw conveyor includes a U-shaped shell 1, a spiral blade 2 rotatably mounted in the shell 1, and a first motor 3 for driving the spiral blade 2 to rotate, a discharge hopper 4 is arranged on the top of the shell 1, the top of the discharge hopper 4 is installed on the bottom end of the shell 1, the discharge hopper 4 is connected with the shell 1, a star-shaped discharger 5 is arranged below the discharge hopper 4, the feed end of the star-shaped discharger 5 is connected with the bottom end of the discharge hopper 4, a weighing sensor 6 is arranged below the star-shaped discharger 5, a bracket 7 is arranged on one side of the weighing sensor 6, the bracket 7 is installed on the shell 1, and the star-shaped discharger 5 and the weighing sensor 6 are installed on the shell 1 through the bracket 7. By running the first motor 3, the spiral blade 2 is driven to rotate in the shell 1, so as to push the material falling in the shell 1 toward the discharge hopper 4, and the material in the shell 1 is transported to the feed end of the star-shaped discharger 5 through the discharge hopper 4, and then the material is discharged through the star-shaped discharger 5 by running the motor of the star-shaped discharger 5. Since the star-shaped discharger 5 is installed on the weighing sensor 6, the weighing sensor 6 weighs the star-shaped discharger 5, the material transported in the star-shaped discharger 5, and the material accumulated at the feed end of the star-shaped discharger 5, so as to facilitate the measurement of the weight of the transported material and improve the accuracy of the transported material. In addition, if there are more materials accumulated at the feed end of the star-shaped discharger 5, the weighing sensor 6 can weigh the information of the larger weight, so as to feedback the information of the more accumulated materials, so as to facilitate the timely adjustment of the conveying speed. In addition, the motor speeds of the first motor 3 and the star-shaped discharger 5 are both adjustable. According to the efficiency requirements of the downstream processing equipment for conveying materials, the conveying efficiency of the star-shaped discharger 5 is adjusted, and then according to the value of the measured weight feedback by the weighing sensor 6, the conveying efficiency of the first motor 3 is adjusted, thereby controlling the conveying speeds of the spiral blades 2 and the star-shaped discharger 5 to be synchronized with the processing efficiency of the downstream processing equipment to meet the regulation requirements.

[0018] In this embodiment, a plurality of cover plates 8 are arranged at the top of the shell 1, and the plurality of cover plates 8 are sequentially installed on the top surface of the shell 1 along the central axis direction of the spiral blade 2. A feed slot 9 is provided on the cover plate 8 adjacent to the first motor 3, and a feed hopper 10 is arranged above the feed slot 9. The feed hopper 10 is connected to the shell 1 through the feed slot 9. Please refer to Figure 3A wing frame 11 is mounted on the bottom end of the feed hopper 10, and the inner wall of the wing frame 11 is installed on the feed hopper 10. Limiting strips 12 are respectively arranged on both sides of the wing frame 11. The limiting strip 12 adopts an inverted L-shaped plate structure. The bottom end of the limiting strip 12 is installed on the cover plate 8. The wing frame 11 is located between the transverse plate of the limiting strip 12 and the cover plate 8. Screws 13 are respectively arranged on both sides of the wing frame 11, and the bottom end of the screw 13 is installed on the wing frame 11. A limiting groove 14 is provided on the transverse plate of the limiting strip 12. The screw 13 is mounted in the limiting groove 14, and the part of the screw 13 that passes through the limiting groove 14 is threadedly mounted with a first nut 15. The outer diameter of the first nut 15 is not less than the groove width of the limiting groove 14. The wing frame 11 and the screw 13 are clamped on the limiting strip 12 by the first nut 15. By changing the position of the first nut 15 clamping the wing frame 11 and the screw rod 13, the installation position of the feed hopper 10 on the cover plate 8 is adjusted to meet various feeding requirements.

[0019] Specifically, the shell 1 is provided with two wing plates 16, which are respectively installed on both sides of the top end of the shell 1, and a clamping plate 17 is provided on one side of the cover plate 8. The clamping plate 17 is a plate-like structure made of elastic material. The clamping plate 17 includes a connecting portion and a clamping portion. The top end of the connecting portion is installed on one end of the cover plate 8, and the bottom end of the connecting portion is connected to the clamping portion. The distance between the clamping portion and the cover plate 8 first decreases and then increases along the direction close to the other side of the cover plate 8. One of the wing plates 16 is clamped between the shell 1 and the clamping portion; the other side of the cover plate 8 and the wing plate 16 are provided with a plurality of fixing grooves 18, and the plurality of fixing grooves 18 are evenly spaced and opened on the other side of the cover plate 8 or on the wing plate 16, and one end of the plurality of fixing grooves 18 is opened to the outer wall of the cover plate 8 or the outer wall of the wing plate 16. A first bolt 19 is arranged between the cover plate 8 and the other wing plate 16. The fixing groove 18 provided in the cover plate 8 and the fixing groove 18 provided in the other wing plate 16 are both mounted on the first bolt 19. The diameter of the first bolt 19 matches the groove width of the fixing groove 18. The thread on the first bolt 19 is mounted on the second nut 20. The cover plate 8 and the other wing plate 16 are located between the nut of the first bolt 19 and the second nut 20. One side of the cover plate 8 is clamped on one of the wing plates 16 by the clamping plate 17, and the other side of the cover plate 8 is clamped on the other wing plate 16 by the first bolt 19 and the second nut 20. When installing the cover plate 8, one side of the cover plate 8 is first inserted from one of the wing plates 16 by pulling, and then the other side of the cover plate 8 is installed on the other wing plate 16 by using the first bolt 19 and the second nut 20, thereby completing the installation of the cover plate 8. Therefore, when installing the cover plate 8, the installation operation can be completed by standing on one side of the housing 1, and there is no need to perform installation operations on both sides of the housing 1, so as to reduce the burden of the installation operation of the cover plate 8.

[0020] Please refer again Figure 3The cover plate 8 is provided with two handles 21, which are respectively installed on both sides of the top surface of the shell 1. The two handles 21 both adopt an N-shaped rod structure. The two handles 21 are respectively held by both hands to carry the cover plate 8 to move, so as to facilitate the loading and unloading operations of the cover plate 8.

[0021] In this embodiment, a first flange 22 is respectively provided on the weighing end of the weighing sensor 6 and the discharging end of the star-shaped discharger 5. The weighing sensor 6 is connected to the star-shaped discharger 5 via the first flange 22, so that the weighing sensor 6 can support the star-shaped discharger 5, measure the weight of the star-shaped discharger 5, load and unload the weighing sensor 6 and the star-shaped discharger 5, and maintain the weighing sensor 6 and the star-shaped discharger 5.

[0022] Specifically, a pipe 23 is arranged between the discharging hopper 4 and the star-shaped discharger 5, and the star-shaped discharger 5 is connected with the discharging hopper 4 through the pipe 23. Second flanges 24 are respectively arranged at both ends of the pipe 23, the bottom end of the discharging hopper 4 and the top end of the star-shaped discharger 5. The pipe 23 is connected with the discharging hopper 4 or the star-shaped discharger 5 through the second flange 24. The pipe 23 is used to guide the material discharged from the discharging hopper 4 to be transported into the star-shaped discharger 5, and to store the material discharged from the discharging hopper 4 but not entering the star-shaped discharger 5, so as to avoid the grain above the star-shaped discharger 5 from sliding, and at the same time prevent the material discharged from the discharging hopper 4 from flying, thereby improving the stability of material transportation.

[0023] The assembly method of this product is as follows: Figures 1 to 3 As shown, first, several cover plates 8 are sequentially installed on the housing 1; by holding the handles 21 on both sides of the cover plate 8 with both hands, one side of the cover plate 8 is first pulled to insert from one of the wing plates 16, and then the other side of the cover plate 8 is installed on the other wing plate 16 by using the first bolt 19 and the second nut 20 to complete the installation of the cover plate 8. Next, the product is moved to the periphery of the silo where the material is stored, so that the feed hopper 10 is located below the discharge end of the silo, and then the position of the feed hopper 10 is adjusted so that the feed end of the feed hopper 10 is installed to the discharge end of the silo, and the first nut 15 is tightened on the screw 13, so that the feed hopper 10 is clamped on the cover plate 8. Then, the bracket 7, the weighing sensor 6, the star-shaped discharger 5, and the pipe 23 are sequentially installed on the housing 1, and then the discharge end of the star-shaped discharger 5 is connected to the feed end of the lower source processing equipment, so that the material transported by the star-shaped discharger 5 is transported to the lower source processing equipment. Finally, the conveying efficiency of the star-shaped discharger 5 is adjusted so that the conveying efficiency of the star-shaped discharger 5 is synchronized with the processing efficiency of the downstream processing equipment, and then the operating efficiency of the first motor 3 is adjusted according to the conveying efficiency of the star-shaped discharger 5 so that the operating efficiency of the first motor 3 is synchronized with the conveying efficiency of the star-shaped discharger 5 to meet the needs of continuous processing.

[0024] The use of this product is as follows: Figures 1 to 3 As shown, first, the weighing sensor 6 is operated. Since no material is conveyed in the star-shaped discharger 5, the weight measured by the weighing sensor 6 at this time is the dead weight of the star-shaped discharger 5 and the pipe 23; then, the motor and the first motor 3 of the star-shaped discharger 5 are started, and the discharge valve of the silo is opened, so that the material in the silo is conveyed to the shell 1 through the feed hopper 10, and then the spiral blade 2 rotates to push the material in the shell 1 into the discharge hopper 4, so that the material falls on the star-shaped discharger 5. If the first motor 3 is controlled to rotate constantly, the weight measured by the weighing sensor 6 at this time is regularly increased. Then, with the operation of the star-shaped discharger 5, the material falling on the star-shaped discharger 5 is intermittently conveyed to the feed end of the downstream processing equipment through the star-shaped discharger 5. Since the operation efficiency of the first motor 3 and the conveying efficiency of the star-shaped discharger 5 are synchronized, the weight measured by the weighing sensor 6 at this time is constant. If the gap of the conveyed material is too large, the weight of the conveyed material will become smaller, and the weight measured by the weighing sensor 6 will become larger; conversely, if the gap of the conveyed material is too small, the weight of the conveyed material will become larger, and the weight measured by the weighing sensor 6 will become larger. The weighing sensor 6 is used to feedback the material conveying information so that the material conveying can be adjusted in time according to the processing requirements.

[0025] Through this embodiment, by running the first motor 3, the spiral blade 2 is driven to rotate, thereby pushing the material in the shell 1 toward the discharge hopper 4, so that the material in the shell 1 is transported to the feed end of the star discharger 5 through the discharge hopper 4, and the star discharger 5, the material transported in the star discharger 5, and the material accumulated at the feed end of the star discharger 5 are weighed by the set weighing sensor 6, so as to facilitate the measurement of the weight of the transported material, so as to improve the accuracy of the transported material. In addition, the motor speeds of the first motor 3 and the star discharger 5 can be adjusted, and the transport efficiency of the star discharger 5 is adjusted according to the efficiency requirements of the material transport of the lower source processing equipment, and then the transport efficiency of the first motor 3 is adjusted according to the numerical value of the measured weight fed back by the weighing sensor 6, so as to control the transport speed of the spiral blade 2 and the star discharger 5 to be synchronized with the processing efficiency of the lower source processing equipment, so as to simplify the difficulty of synchronizing the processing efficiency.

[0026] The embodiments described above are only preferred embodiments of the present invention and are not intended to limit the scope of implementation of the present invention. Therefore, any equivalent changes or modifications made based on the structures, features and principles described in the patent scope of the present invention should be included in the patent application scope of the present invention.

Claims

1. A screw conveyor, comprising a U-shaped housing (1), a screw blade (2) rotatably mounted in the housing (1), and a first motor (3) for driving the screw blade (2) to rotate, characterized in that: A discharge hopper (4) is arranged at the top of the shell (1), the top end of the discharge hopper (4) is mounted on the bottom end of the shell (1), the discharge hopper (4) is connected to the shell (1), a star-shaped discharger (5) is arranged below the discharge hopper (4), the feed end of the star-shaped discharger (5) is connected to the bottom end of the discharge hopper (4), a weighing sensor (6) is arranged below the star-shaped discharger (5), a bracket (7) is arranged on one side of the weighing sensor (6), the bracket (7) is mounted on the shell (1), and the star-shaped discharger (5) and the weighing sensor (6) are mounted on the shell (1) via the bracket (7).

2. The screw conveyor according to claim 1, characterized in that: A plurality of cover plates (8) are arranged at the top of the shell (1), and the plurality of cover plates (8) are sequentially mounted on the top surface of the shell (1) along the central axis direction of the spiral blade (2). A feed slot (9) is provided on the cover plate (8) adjacent to the first motor (3), and a feed hopper (10) is arranged above the feed slot (9). The feed hopper (10) is connected to the shell (1) through the feed slot (9), and a wing frame (11) is sleeved on the bottom end of the feed hopper (10). The inner wall of the wing frame (11) is mounted on the feed hopper (10), and limit bars (12) are respectively arranged on both sides of the wing frame (11). The limit bars (12) adopt an inverted L-shaped plate structure. The bottom end of the wing frame (11) is mounted on the cover plate (8), the wing frame (11) is located between the transverse plate of the limiting strip (12) and the cover plate (8), screw rods (13) are respectively arranged on both sides of the wing frame (11), the bottom end of the screw rod (13) is mounted on the wing frame (11), a limiting groove (14) is provided on the transverse plate of the limiting strip (12), the screw rod (13) is sleeved in the limiting groove (14), a part of the screw rod (13) that passes through the limiting groove (14) is sleeved with a first nut (15), the outer diameter of the first nut (15) is not less than the groove width of the limiting groove (14), and the wing frame (11) and the screw rod (13) are clamped on the limiting strip (12) through the first nut (15).

3. The screw conveyor according to claim 2, characterized in that: The shell (1) is provided with two wing plates (16), which are respectively mounted on both sides of the top end of the shell (1). A clamping plate (17) is provided on one side of the cover plate (8). The clamping plate (17) is a plate-shaped structure made of elastic material. The clamping plate (17) comprises a connecting portion and a clamping portion. The top end of the connecting portion is mounted on one end of the cover plate (8), and the bottom end of the connecting portion is connected to the clamping portion. The distance between the clamping portion and the cover plate (8) first decreases and then increases in a direction close to the other side of the cover plate (8). One of the wing plates (16) is clamped between the shell (1) and the clamping portion. The other side of the cover plate (8) and the wing plate (16) are both provided with a plurality of fixing grooves (18). If A plurality of fixing grooves (18) are formed at equal intervals on the other side of the cover plate (8) or on the wing plate (16), one end of a plurality of fixing grooves (18) is formed on the outer wall of the cover plate (8) or on the outer wall of the wing plate (16), a first bolt (19) is provided between the cover plate (8) and the wing plate (16), the fixing groove (18) formed on the cover plate (8) and the fixing groove (18) formed on the other wing plate (16) are both mounted on the first bolt (19), the diameter of the first bolt (19) matches the groove width of the fixing groove (18), the first bolt (19) is threadedly mounted on the second nut (20), and the cover plate (8) and the other wing plate (16) are located between the nut of the first bolt (19) and the second nut (20).

4. The screw conveyor according to claim 2, characterized in that: The cover plate (8) is provided with two handles (21), the two handles (21) are respectively mounted on both sides of the top surface of the housing (1), and the two handles (21) both have an N-shaped rod structure.

5. The screw conveyor according to claim 1, characterized in that: A first flange (22) is provided on the weighing end of the weighing sensor (6) and the discharging end of the star-shaped discharger (5), respectively, and the weighing sensor (6) is connected to the star-shaped discharger (5) via the first flange (22).

6. The screw conveyor according to claim 1, characterized in that: A pipe (23) is provided between the discharge hopper (4) and the star-shaped discharger (5); the star-shaped discharger (5) is connected to the discharge hopper (4) via the pipe (23); second flanges (24) are provided at both ends of the pipe (23), at the bottom end of the discharge hopper (4) and at the top end of the star-shaped discharger (5); and the pipe (23) is connected to the discharge hopper (4) or the star-shaped discharger (5) via the second flange (24).

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