Screw conveyor with good stability

Abstract

The application discloses a spiral conveyor with good stability and relates to the technical field of conveying equipment. The spiral conveyor with good stability comprises a base, the upper surface of the base is fixedly connected with a central stand, a fixing frame and a cleaning module, the periphery of the central stand is fixedly connected with a conveying track, the inside of the conveying track is provided with a chain plate module, the outer surface of the fixing frame is fixedly connected with a motor, the output end of the motor is fixedly connected with a rotating shaft, the outer surface of the rotating shaft is fixedly connected with two driving sprockets, the inner surface of the fixing frame is fixedly connected with a fixing rod, the outer surface of the fixing rod is rotatably connected with two driven sprockets, the two sides of the fixing frame are both provided with guide holes, the inside of the guide holes is sleeved with movable rods, the outer surface of the movable rods is rotatably connected with two adjustable sprockets, and the outer surface of the fixing frame is provided with an adjusting module. The spiral conveyor can ensure constant tension and stable transmission during the spiral conveying process, reduce the impact load of the chain plate, and reduce the abrasion of the hinged point of the chain plate and the operation noise.

Description

Technical Field

[0001] This invention relates to the field of conveying equipment technology, specifically to a screw conveyor with good stability. Background Technology

[0002] A conveyor is a device that continuously transports materials via mechanical transmission. It is widely used in industrial production, logistics warehousing, and mining. Its core function is to automate and efficiently transport large quantities of materials, significantly reducing labor costs and improving operational efficiency. Common conveyor types include belt conveyors, chain conveyors, screw conveyors, and roller conveyors. For example, belt conveyors carry materials using a circular belt and are suitable for horizontal or inclined transport of bulk goods; chain conveyors use metal chains to transport heavy or high-temperature items and are often used in the automotive manufacturing or metallurgical industries. In e-commerce sorting centers, conveyors can accurately sort packages; in food processing plants, stainless steel conveyors ensure hygiene standards. Conveyors are an indispensable infrastructure of modern industrial production lines. Screw conveyors, as an important component of modern logistics automation equipment, are specifically designed for vertical transport of large items.

[0003] Currently, screw conveyors generally suffer from the inherent defect of being unable to adjust the tension of the chain plates during material transport. Traditional equipment uses a fixed-gap sprocket layout, which means that the slack caused by wear, thermal expansion and contraction, or load changes during chain plate operation cannot be compensated for. This can easily lead to serious chain plate vibration, derailment, or even breakage. At the same time, the existing chain plate structure is simple and lacks a buffer and anti-slip mechanism, which makes smooth or irregularly shaped materials prone to slippage and rolling in the inclined section of the screw. This not only causes material damage but also aggravates the impact load on the chain plate and shortens the service life of the equipment. In addition, the traditional chain plate hinge points use sliding friction, which results in high rotational resistance at the bends of the screw, easily generating wear and noise and reducing the smoothness of operation. Summary of the Invention

[0004] To address the shortcomings of existing technologies, this invention provides a screw conveyor with good stability, thereby solving the problems mentioned in the background art, such as the inability to adjust the chain tension of existing screw conveyors leading to slack and vibration, the simple chain structure lacking a buffer and anti-slip mechanism causing material slippage and damage, and the sliding friction at the hinge points leading to high bending resistance and severe wear.

[0005] To solve the above problems, the present invention provides the following technical solution: a screw conveyor with good stability, comprising a base, a central column, a fixed frame, and a cleaning module fixedly connected to the upper surface of the base; a conveying track fixedly connected to the periphery of the central column; a chain plate module disposed inside the conveying track; a motor fixedly connected to the outer surface of the fixed frame; a rotating shaft fixedly connected to the output end of the motor; two driving sprockets fixedly connected to the outer surface of the rotating shaft; a fixed rod fixedly connected to the inner surface of the fixed frame; two driven sprockets rotatably connected to the outer surface of the fixed rod; guide holes are provided on both sides of the fixed frame; and movable rods are fitted inside the guide holes. The outer surface of the movable rod is rotatably connected to two adjustable sprockets. The outer surface of the fixed frame is provided with an adjustment module, which includes two fixed blocks. The upper surfaces of the two fixed blocks are respectively rotatably connected to a first screw and a second screw. Both ends of the movable rod are fixedly connected to sliders. The chain plate module includes several lower base plates. Both ends of the lower base plates are fixedly connected to chain links. A connecting shaft is fixedly connected to one side of the lower base plate. The outer surface of the connecting shaft has an annular groove. A rotating ball is rotatably connected inside the annular groove. The cleaning module includes a base. The interior of the base is rotatably connected to a third screw. The outer surface of the third screw is threadedly connected to a movable seat.

[0006] Preferably, the top of the fixed frame is fixedly connected to the top of the conveying track, the lower part of the fixed frame is fixedly connected to the bottom of the conveying track, and the driving sprocket, driven sprocket and adjustable sprocket are all engaged with the chain links of the chain plate module.

[0007] Preferably, a synchronous pulley is fixedly connected to the upper part of the outer surface of both the first screw and the second screw, and a synchronous belt is provided on the outer surface of the synchronous pulley. A first handwheel is fixedly connected to the top of the first screw, and the two fixed blocks are respectively fixedly connected to both sides of the fixed frame. The two sliders are respectively threadedly connected to the first screw and the second screw.

[0008] Preferably, the lower substrate has a through hole on the side away from the connecting shaft, the connecting shaft passes through the through hole, the outer surface of the rotating bead contacts the inner wall of the through hole, and the rotating bead is arranged in a ring along the annular groove.

[0009] Preferably, a middle elastic pad is fixedly connected to the upper surface of the lower substrate, an upper bearing plate is fixedly connected to the upper surface of the middle elastic pad, and a plurality of anti-slip protrusions are fixedly connected to the upper surface of the upper bearing plate.

[0010] Preferably, the lower surface of the base is fixedly connected to the upper surface of the base, the end of the third screw is fixedly connected to a second handwheel, the movable seat is fixedly connected to a connecting handle, a fixed support plate and a fixed box on the side near the chain plate module, and a cleaning brush is fixedly connected to the end of the connecting handle near the chain plate module.

[0011] Preferably, the fixed tray is positioned directly below the connecting handle, and an L-shaped base plate is provided on the upper surface of the fixed tray. A flexible collection bag is fixedly connected to the upper surface of the L-shaped base plate, one side of the flexible collection bag is fixedly connected to the side wall of the L-shaped base plate, and a telescopic rod is fixedly connected to the side wall of the L-shaped base plate. The telescopic end of the telescopic rod is fixedly connected to the top of the flexible collection bag on the side away from the inner wall of the L-shaped base plate, and the flexible collection bag is positioned below the cleaning brush.

[0012] Preferably, a telescopic electric cylinder and multiple flexible tubes are fixedly connected to the side of the fixed box near the chain plate module, a dust suction nozzle is fixedly connected to the end of the flexible tube, a fan is fixedly connected to the inner wall of the fixed box away from the telescopic electric cylinder, and a connecting seat is fixedly connected to the upper surface of the dust suction nozzle.

[0013] Preferably, the bottom end of the telescopic electric cylinder is hinged to the middle of the upper surface of the connecting seat, the interior of the flexible tube is connected to the interior of the fixed box, the interior of the fixed box is provided with a collection groove, the collection groove is located below the end of the flexible tube, and the fan is located above the end of the flexible tube.

[0014] Preferably, the upper surface of the base is provided with multiple guide grooves, and the bottom of the movable seat is fixedly connected with multiple support wheels, the outer surface of the support wheels being adapted to the interior of the guide grooves.

[0015] This invention provides a screw conveyor with good stability. It has the following beneficial effects:

[0016] 1. This highly stable screw conveyor, through the synchronous screw drive design of the adjustment module, allows the operator to drive the first and second screws to rotate synchronously via the synchronous pulley and synchronous belt simply by rotating the first handwheel. This drives the slider and movable rod to move linearly. The position of the adjustable sprocket can be adjusted when the chain plate is slack, thus tightening the chain plate. This facilitates the elimination of slack, shaking, and derailment during the operation of the chain plate module, ensuring constant tension and smooth transmission during the screw conveying process. This significantly reduces the frequency of downtime maintenance and improves the reliability of continuous operation of the equipment.

[0017] 2. This highly stable screw conveyor utilizes a three-layer composite buffer and anti-slip structure in its chain plate module. The lower base plate provides rigid support, the middle elastic pad absorbs impact vibrations during material loading and conveying, and the dense anti-slip protrusions on the surface of the upper bearing plate significantly increase frictional resistance. The three layers work together to effectively suppress the inertial slippage and rolling of smooth or irregularly shaped materials in the inclined section of the screw, preventing material damage. The elastic layer also reduces the impact load on the chain plate, extending the service life of the equipment and enabling stable and damage-free conveying of various materials.

[0018] 3. This highly stable screw conveyor utilizes a design that converts the rolling friction between rotating beads and annular grooves. Adjacent lower substrates are hinged through a connecting shaft and a through-hole. The rotating beads in the annular array within the annular groove directly contact the inner wall of the through-hole, transforming the sliding friction of traditional pin-connected connections into highly efficient rolling friction. This structure significantly reduces the rotational resistance of the chain plate module at the helical bends, reduces wear at the hinge points and operating noise, improves the bending flexibility and fatigue resistance of the chain plate, and ensures long-term low-noise and smooth operation of the equipment.

[0019] 4. This highly stable screw conveyor utilizes an integrated two-stage cleaning system in its cleaning module. A sweeping brush scrapes away large particles of impurities from the chain plate surface, which fall into a flexible collection bag. A fan drives a suction nozzle to draw residual dust through a flexible tube into a collection trough within a fixed box. This effectively removes residue from the chain plate surface and crevices, significantly improving cleaning efficiency and hygiene safety. It enables continuous operation without downtime. Furthermore, the adjustable movable seat, the telescopic rod's adjustment of the flexible collection bag opening, and the telescopic electric cylinder's adjustment of the suction nozzle angle all facilitate the cleaning module's adaptation to the adjustable tension chain plate module, giving the cleaning module high flexibility. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0021] Figure 2 This is a schematic diagram of the overall planar structure of the present invention;

[0022] Figure 3 This is a schematic diagram of the adjustable sprocket of the present invention;

[0023] Figure 4 This is a schematic diagram of the structure of the adjustment module of the present invention;

[0024] Figure 5 This is a partial structural schematic diagram of the chain plate module of the present invention;

[0025] Figure 6 This is an enlarged structural diagram of the connection between adjacent lower substrates of the present invention;

[0026] Figure 7 This is a schematic diagram of the cleaning module of the present invention;

[0027] Figure 8 This is a cross-sectional view of the cleaning module of the present invention.

[0028] In the diagram: 1. Base; 2. Central column; 3. Conveyor track; 4. Fixing frame; 5. Cleaning module; 6. Chain plate module; 7. Motor; 8. Shaft; 9. Drive sprocket; 10. Fixing rod; 11. Driven sprocket; 12. Guide hole; 13. Movable rod; 14. Adjustable sprocket; 15. Adjustment module; 16. Fixing block; 17. First screw; 18. Second screw; 19. Slider; 20. Synchronous pulley; 21. Synchronous belt; 22. First handwheel; 23. Lower base plate; 24. Chain link; 25. Middle layer elastic pad; 6. Upper support plate; 27. Anti-slip protrusions; 28. Through hole; 29. ​​Connecting shaft; 30. Annular groove; 31. Rotating ball; 32. Base; 33. Third screw; 34. Second handwheel; 35. Movable seat; 36. Support wheel; 37. Guide groove; 38. Connecting handle; 39. Fixed tray; 40. Fixed box; 41. Cleaning brush; 42. L-shaped base plate; 43. Flexible collection bag; 44. Telescopic rod; 45. Fan; 46. Telescopic electric cylinder; 47. Flexible tube; 48. Vacuum nozzle; 49. Connecting seat; 50. Collection trough. Detailed Implementation

[0029] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the invention to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of the invention, and to enable those skilled in the art to understand the invention and design various embodiments with various modifications suitable for a particular purpose. Example

[0030] like Figures 1-6As shown, the present invention provides a technical solution: a screw conveyor with good stability, including a base 1. A central column 2, a fixing frame 4, and a cleaning module 5 are fixedly connected to the upper surface of the base 1. A conveying track 3 is fixedly connected to the periphery of the central column 2. A chain plate module 6 is arranged inside the conveying track 3. A motor 7 is fixedly connected to the outer surface of the fixing frame 4. A rotating shaft 8 is fixedly connected to the output end of the motor 7. Two drive sprockets 9 are fixedly connected to the outer surface of the rotating shaft 8. A fixing rod 10 is fixedly connected to the inner surface of the fixing frame 4. Two driven sprockets 11 are rotatably connected to the outer surface of the fixing rod 10. Guide holes 12 are opened on both sides of the fixing frame 4. A movable rod 13 is sleeved inside the guide holes 12. The outer surface of the movable rod 13 is rotatably connected to... There are two adjustable sprockets 14. The outer surface of the fixed frame 4 is provided with an adjustment module 15. The adjustment module 15 includes two fixed blocks 16. The upper surfaces of the two fixed blocks 16 are respectively rotatably connected to a first screw 17 and a second screw 18. Both ends of the movable rod 13 are fixedly connected to sliders 19. The chain plate module 6 includes several lower base plates 23. Both ends of the lower base plates 23 are fixedly connected to chain links 24. One side of the lower base plates 23 is fixedly connected to a connecting shaft 29. The outer surface of the connecting shaft 29 is provided with an annular groove 30. The interior of the annular groove 30 is rotatably connected to a rotating ball 31. The cleaning module 5 includes a base 32. The interior of the base 32 is rotatably connected to a third screw 33. The outer surface of the third screw 33 is threadedly connected to a movable seat 35.

[0031] The top of the fixed frame 4 is fixedly connected to the top of the conveying track 3, and the bottom of the fixed frame 4 is fixedly connected to the bottom of the conveying track 3. The driving sprocket 9, the driven sprocket 11 and the adjustable sprocket 14 are all engaged with the chain link 24 of the chain plate module 6.

[0032] Synchronous pulleys 20 are fixedly connected to the upper part of the outer surface of the first screw 17 and the second screw 18. A synchronous belt 21 is provided on the outer surface of the synchronous pulley 20. A first handwheel 22 is fixedly connected to the top of the first screw 17. Two fixing blocks 16 are fixedly connected to both sides of the fixing frame 4 respectively. Two sliders 19 are threadedly connected to the first screw 17 and the second screw 18 respectively.

[0033] A through hole 28 is provided on the side of the lower substrate 23 away from the connecting shaft 29. The connecting shaft 29 passes through the through hole 28. The outer surface of the rotating bead 31 contacts the inner wall of the through hole 28. The rotating bead 31 is arranged in a ring along the annular groove 30.

[0034] A middle layer elastic pad 25 is fixedly connected to the upper surface of the lower substrate 23, an upper layer bearing plate 26 is fixedly connected to the upper surface of the middle layer elastic pad 25, and a number of anti-slip protrusions 27 are fixedly connected to the upper surface of the upper layer bearing plate 26.

[0035] The working principle of the above embodiments:

[0036] In use, the screw conveyor transports objects by spiraling upward (or downward). The core power comes from the motor 7. The driving sprocket 9, driven sprocket 11, and adjustable sprocket 14 are all engaged with the chain plate module 6. The motor 7 drives the rotating shaft 8 and the driving sprocket 9 fixed on it to rotate. The driven sprocket 11 and adjustable sprocket 14 rotate passively, thereby driving the entire chain plate module 6 to circulate along the spiral conveying track 3. Large objects to be transported are placed on the bearing surface of the chain plate module 6. As the chain plate module 6 moves stably within the conveying track 3, the objects can be continuously and smoothly transported from the starting point (e.g., a low point) to the ending point (e.g., a high point) or vice versa. During this process, the adjustment module 15 is responsible for maintaining the appropriate tension required for the operation of the chain plate module 6, while the cleaning module 5 automatically removes residual materials that may adhere to or fall off the chain plate module 6 during operation.

[0037] By adjusting module 15, the operator can easily adjust the tension of chain plate module 6 to adapt to operating needs or compensate for wear. Specifically, the first handwheel 22 fixed to the top of the first screw 17 is rotated. The rotation of the first screw 17 is transmitted through the synchronous pulley 20 fixed to the upper part of the first screw 17 and the synchronous belt 21 connecting the two synchronous pulleys 20, thereby driving the second screw 18 to rotate synchronously in the same direction. Since the two sliders 19 are threadedly connected to the first screw 17 and the second screw 18 respectively, the rotation of the screw is converted into the linear motion of the sliders 19. The movable rod 13 moves through the guide holes 12 on both sides of the fixed frame 4. Its sliding is constrained by the guide holes 12. Therefore, the movement of the slider 19 directly drives the movable rod 13 to move along the guide holes 12. The displacement of the movable rod 13 changes the position of the adjustable sprocket 14 relative to the driving sprocket 9 and the driven sprocket 11. By increasing or decreasing the distance between the adjustable sprocket 14 and other sprockets, the chain plate module 6 can be precisely tightened or loosened, effectively preventing the chain plate module 6 from becoming loose, shaking or derailing during operation, and ensuring smooth and reliable transmission.

[0038] The lower base plate 23, connected by the chain plate module 6, forms the rigid basic frame of the module, providing the main support strength and structural stability. The middle elastic pad 25, made of elastic materials such as rubber, absorbs the impact and vibration generated during the placement and transportation of objects, providing good cushioning and shock absorption, and protecting the transported items and the machine itself. The upper support plate 26 directly supports the transported items. Multiple anti-slip protrusions 27 on the upper surface of the upper support plate 26 significantly enhance the friction between the items and the upper support plate 26, preventing slippage or rolling, especially for smooth items, in the spiral ascending (or descending) section. The two adjacent lower base plates 23... The components are rotatably connected by a connecting shaft 29. One of the lower substrates 23 is fixedly connected to the connecting shaft 29 on one side. The connecting shaft 29 passes through a through hole 28 opened on one side of the adjacent lower substrate 23. By setting the rotating ball 31 in the annular groove 30 on the outer surface of the connecting shaft 29, the traditional sliding friction between the plates can be cleverly transformed into efficient rolling friction. When the chain plate module 6 runs along the conveyor track 3, especially in the bending section, the adjacent substrates need to rotate relative to each other. The rolling of the rotating ball 31 on the inner wall of the through hole 28 greatly reduces the rotational resistance, reduces wear and noise, and significantly improves the flexibility and service life of the chain plate bending. Example

[0039] like Figures 7-8 As shown, the lower surface of the base 32 is fixedly connected to the upper surface of the base 1, the end of the third screw 33 is fixedly connected to the second handwheel 34, the movable seat 35 is fixedly connected to the side of the chain plate module 6 with the connecting handle 38, the fixed support plate 39 and the fixed box 40, and the end of the connecting handle 38 near the chain plate module 6 is fixedly connected to the cleaning brush 41.

[0040] The fixed tray 39 is located directly below the connecting handle 38. An L-shaped base plate 42 is provided on the upper surface of the fixed tray 39. A flexible collection bag 43 is fixedly connected to the upper surface of the L-shaped base plate 42. One side of the flexible collection bag 43 is fixedly connected to the side wall of the L-shaped base plate 42. A telescopic rod 44 is fixedly connected to the side wall of the L-shaped base plate 42. The telescopic end of the telescopic rod 44 is fixedly connected to the top of the flexible collection bag 43 on the side away from the inner wall of the L-shaped base plate 42. The flexible collection bag 43 is located below the cleaning brush 41.

[0041] A telescopic electric cylinder 46 and multiple flexible tubes 47 are fixedly connected to the side of the fixed box 40 near the chain plate module 6. A dust suction nozzle 48 is fixedly connected to the end of the flexible tube 47. A fan 45 is fixedly connected to the inner wall of the fixed box 40 away from the telescopic electric cylinder 46. A connecting seat 49 is fixedly connected to the upper surface of the dust suction nozzle 48.

[0042] The bottom end of the telescopic electric cylinder 46 is hinged to the middle of the upper surface of the connecting seat 49. The interior of the flexible tube 47 is connected to the interior of the fixed box 40. The fixed box 40 is provided with a collection trough 50, which is located below the end of the flexible tube 47. The fan 45 is located above the end of the flexible tube 47.

[0043] The upper surface of the base 32 is provided with multiple guide grooves 37, and the bottom of the movable seat 35 is fixedly connected with multiple support wheels 36. The outer surface of the support wheels 36 is adapted to the interior of the guide grooves 37.

[0044] During operation, by rotating the second handwheel 34 fixed to the end of the third screw 33 through the cleaning module 5, the third screw 33 is driven to rotate, which in turn drives the movable seat 35 and all its components to move horizontally and position it in a suitable working position on the side of the chain plate module 6. During the movement of the movable seat 35, the support wheel 36 at its bottom rolls along the guide groove 37 opened on the upper surface of the base 32. The support wheel 36 provides stable support for the movable seat 35, effectively bearing its vertical load and significantly dispersing the pressure and bending moment borne by the third screw 33, ensuring the smoothness of movement and the service life of the screw. The cleaning action is mainly divided into two parts. First, the cleaning brush 41 is attached to the surface of the chain plate module 6. As the chain plate module 6 moves, the cleaning brush 41 sweeps away the adhering large particles of residue, clumps of material, etc. from the chain plate surface. The larger particles swept off fall directly into the flexible collection bag 43 located directly below the cleaning brush 41. By adjusting the telescopic rod 44 fixed to the side wall of the L-shaped base plate 42, the opening and closing of the flexible collection bag 43 can be controlled. The process involves two steps: firstly, ensuring thorough collection of particles swept off by the brush 41; secondly, simultaneously activating the fan 45 inside the fixed housing 40 to generate suction at the suction nozzle 48. This powerful suction, passing through the suction nozzle 48 and the flexible tube 47, draws dust and fine particles that are difficult for the brush 41 to remove into the fixed housing 40. The dust-laden airflow slows down within the fixed housing 40, causing the dust to settle under gravity into the collection trough 50 located below the end of the flexible tube 47, thus achieving effective dust collection. By controlling the extension and retraction of the telescopic electric cylinder 46, the angle of the suction nozzle 48 can be flexibly adjusted so that it is precisely aimed at the area to be cleaned (such as the gaps in the chain plate and the pits). The L-shaped base plate 42 and the flexible collection bag 43, as well as the collection trough 50, are periodically removed for cleaning. The relative position of the cleaning brush 41 and the fixed box 40 is set according to the actual conveying direction to ensure that along the material conveying path, the cleaning brush 41 first performs preliminary cleaning to scrape off large particles of impurities, and then the suction nozzle 48 performs secondary cleaning to absorb residual dust.

[0045] Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of the present invention without inventive effort should fall within the scope of protection of the present invention. Structures, devices, and operating methods not specifically described and explained in the present invention, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A screw conveyor with good stability, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected with a center column (2), a fixing frame (4) and a cleaning module (5), the periphery of the center column (2) is fixedly connected with a conveying track (3), the inside of the conveying track (3) is provided with a chain plate module (6), the outer surface of the fixing frame (4) is fixedly connected with a motor (7), the output end of the motor (7) is fixedly connected with a rotating shaft (8), the outer surface of the rotating shaft (8) is fixedly connected with two driving sprockets (9), the inner surface of the fixing frame (4) is fixedly connected with a fixed rod (10), the outer surface of the fixed rod (10) is rotatably connected with two driven sprockets (11), the two sides of the fixing frame (4) are both provided with a guide hole (12), the guide hole (12) is sleeved with a movable rod (13), the outer surface of the movable rod (13) is rotatably connected with two adjustable sprockets (14), the outer surface of the fixing frame (4) is provided with an adjusting module (15), the adjusting module (15) comprises two fixed blocks (16), the upper surfaces of the two fixed blocks (16) are rotatably connected with a first screw rod (17) and a second screw rod (18) respectively, the two ends of the movable rod (13) are both fixedly connected with a sliding block (19), the chain plate module (6) comprises a plurality of lower base plates (23), the two ends of the lower base plate (23) are both fixedly connected with a chain link (24), one side of the lower base plate (23) is fixedly connected with a connecting shaft (29), the outer surface of the connecting shaft (29) is provided with an annular groove (30), the inside of the annular groove (30) is rotatably connected with a rotating bead (31), the cleaning module (5) comprises a base (32), the inside of the base (32) is rotatably connected with a third screw rod (33), the outer surface of the third screw rod (33) is threadedly connected with a movable seat (35).

2. A spiral conveyor with good stability according to claim 1, characterized in that: The top of the fixing frame (4) is fixedly connected with the top of the conveying track (3), the lower part of the fixing frame (4) is fixedly connected with the bottom of the conveying track (3), the driving sprocket (9), the driven sprocket (11) and the adjustable sprocket (14) are all engaged with the chain link (24) of the chain plate module (6).

3. A spiral conveyor with good stability according to claim 1, characterized in that: The upper part of the outer surface of the first screw rod (17) and the second screw rod (18) is fixedly connected with a synchronous wheel (20), the outer surface of the synchronous wheel (20) is provided with a synchronous belt (21), the top end of the first screw rod (17) is fixedly connected with a first hand wheel (22), the two fixed blocks (16) are respectively fixedly connected on the two sides of the fixing frame (4), the two sliding blocks (19) are respectively threadedly connected with the first screw rod (17) and the second screw rod (18).

4. A spiral conveyor with good stability according to claim 1, characterized in that: The side, away from the connecting shaft (29), of the lower base plate (23) is provided with a through hole (28), the connecting shaft (29) penetrates through the through hole (28), the outer surface of the rotating bead (31) is in contact with the inner wall of the through hole (28), the rotating bead (31) is annularly arranged along the annular groove (30).

5. A spiral conveyor with good stability according to claim 1, characterized in that: The upper surface of the lower substrate (23) is fixedly connected with a middle elastic pad (25), the upper surface of the middle elastic pad (25) is fixedly connected with an upper bearing plate (26), and the upper surface of the upper bearing plate (26) is fixedly connected with a plurality of anti-skid convex points (27).

6. A spiral conveyor with good stability according to claim 1, characterized in that: The lower surface of the base (32) is fixedly connected to the upper surface of the base (1), the end of the third screw rod (33) is fixedly connected with a second hand wheel (34), the side of the movable seat (35) close to the chain plate module (6) is fixedly connected with a connecting handle (38), a fixed supporting plate (39) and a fixed box (40), and the end of the connecting handle (38) close to the chain plate module (6) is fixedly connected with a cleaning brush (41).

7. A screw conveyor with good stability according to claim 6, characterized in that: The fixed supporting plate (39) is arranged directly below the connecting handle (38), the upper surface of the fixed supporting plate (39) is provided with an L-shaped base plate (42), the upper surface of the L-shaped base plate (42) is fixedly connected with a flexible collecting bag (43), one side of the flexible collecting bag (43) is fixedly connected to the side wall of the L-shaped base plate (42), the side wall of the L-shaped base plate (42) is fixedly connected with a telescopic rod (44), the telescopic end of the telescopic rod (44) is fixedly connected to the top of the side of the flexible collecting bag (43) away from the inner wall of the L-shaped base plate (42), and the flexible collecting bag (43) is arranged below the cleaning brush (41).

8. A spiral conveyor with good stability according to claim 6, characterized in that: The side of the fixed box (40) close to the chain plate module (6) is fixedly connected with a telescopic electric cylinder (46) and a plurality of flexible pipes (47), the end of the flexible pipe (47) is fixedly connected with a dust suction nozzle (48), the inner wall of the side of the fixed box (40) away from the telescopic electric cylinder (46) is fixedly connected with a fan (45), and the upper surface of the dust suction nozzle (48) is fixedly connected with a connecting seat (49).

9. A screw conveyor with good stability according to claim 8, characterized in that: The bottom end of the telescopic electric cylinder (46) is hingedly connected to the middle of the upper surface of the connecting seat (49), the inside of the flexible pipe (47) is in communication with the inside of the fixed box (40), the inside of the fixed box (40) is provided with a collecting groove (50), the collecting groove (50) is arranged below the end of the flexible pipe (47), and the fan (45) is arranged above the end of the flexible pipe (47).

10. A spiral conveyor with good stability according to claim 1, characterized in that: The upper surface of the base (32) is provided with a plurality of guide grooves (37), and the bottom of the movable seat (35) is fixedly connected with a plurality of supporting wheels (36), and the outer surface of the supporting wheel (36) is matched with the inside of the guide groove (37).

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