Screw elevator with easy cleaning

By introducing a conveying mechanism consisting of scrapers and compression springs into the screw conveyor, the problem of material adhesion is solved, achieving efficient cleaning and convenient maintenance.

CN224278635UActive Publication Date: 2026-05-26XINHEHAI MASCH (JIANGSU) CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
XINHEHAI MASCH (JIANGSU) CO LTD
Filing Date
2025-04-02
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

Existing screw conveyors cannot effectively clean the material adhering to the inner wall, affecting subsequent use.

Method used

A conveying mechanism with a scraper and a pressure spring was designed. The scraper is driven by a transmission rod to make close contact with the inner wall of the conveyor housing. Combined with a disassembly mechanism, it is easy to maintain.

Benefits of technology

It effectively reduces the adhesion of materials to the inner wall of the conveyor casing, improves the cleaning effect, and facilitates equipment maintenance.

✦ Generated by Eureka AI based on patent content.

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  • Figure CN224278635U_ABST
    Figure CN224278635U_ABST
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Abstract

The utility model relates to spiral elevating conveyer technical field, specifically disclose a spiral elevating conveyer convenient to clean, including conveyer shell, the outer surface of conveyer shell is installed and enters the feed port, the side wall of conveyer shell is equipped with the conveying mechanism for conveying material, the end of conveyer shell is equipped with the dismounting mechanism for the dismounting of conveyer, the conveying mechanism includes conveying motor, conveying motor is fixed through bolt in the outer wall of conveyer shell, the power output shaft of conveying motor is fixed with driving wheel. Through the setting conveying mechanism, can convey the raw material of putting, and can scrape the raw material adhered in the inner wall of conveyer shell, can effectively reduce the raw material adhered in the inner wall of conveyer shell, under the effect of the elasticity of compression spring itself, will promote the movement of the limiting plate, and then drive the scraper better and the inner wall of conveyer shell contact, improve the cleaning effect.
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Description

Technical Field

[0001] This utility model relates to the field of screw conveyor technology, and in particular to a screw conveyor that is easy to clean. Background Technology

[0002] A screw conveyor, also known as a screw conveyor or screw feeder, is a commonly used material handling device. It is a large mechanical device that transports materials by changing their potential energy. It uses rotating screw blades to lift materials from one position to another. This equipment is mainly used for conveying powdery, granular, and small lump materials, such as coal, gypsum, clinker, dry clay, sand, coke fines, cement, and crushed ore. When the drive unit is activated, it rotates the screw blades, thus forming a continuous screw conveying channel.

[0003] The existing screw conveyor has a fixed height and angle, which is not easy to adjust and has certain limitations.

[0004] An existing patent (publication number: CN209009472U) discloses a screw conveyor, which includes a support plate, a first support column and a conveyor body at the upper end of the support plate, a second support column at the upper end of the second support column, a rotating shaft at the upper end of the rotating shaft, and a clamp at the upper end of the rotating shaft. It features internal threads on both the left and right flanges, and external threads on both ends of the outer cylinder. The outer cylinder is connected to the left and right flanges via threads, facilitating the disassembly of the left and right flanges, cleaning of the interior of the outer cylinder, and routine maintenance and troubleshooting.

[0005] To address the aforementioned issues, the existing patents provide solutions that feature internal threads on both the left and right flanges and external threads on both ends of the outer cylinder, with the outer cylinder connected to the left and right flanges via threads, facilitating the disassembly of the left and right flanges. However, when using the conveyor to transport materials, it is impossible to clean the inner wall of the conveyor, and the material easily adheres to the inner wall of the conveyor, affecting subsequent use. Summary of the Invention

[0006] The purpose of this utility model is to provide a screw conveyor that is easy to clean. It can transport the raw materials and scrape off the raw materials adhering to the inner wall of the conveyor shell, which can effectively reduce the amount of raw materials adhering to the inner wall of the conveyor shell. Under the action of the elasticity of the compression spring, the limiting plate will be pushed to move, thereby driving the scraper to better contact the inner wall of the conveyor shell, improving the cleaning effect, so as to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution: a screw conveyor that is easy to clean, comprising a conveyor housing, an inlet installed on the outer surface of the conveyor housing, a conveying mechanism for conveying materials provided on the side wall of the conveyor housing, and a disassembly mechanism for disassembling the conveyor at the end of the conveyor housing.

[0008] The conveying mechanism includes a conveying motor, which is fixed to the outer wall of the conveyor housing by bolts. The power output shaft of the conveying motor is fixed with a drive wheel. The outer wall of the drive wheel is connected to a conveyor belt. A driven wheel is connected to one side of the conveyor belt. A transmission rod is fixed inside the driven wheel. Three sets of mounting pipes are symmetrically fixed to the outer surface of the transmission rod.

[0009] Preferably, each of the three sets of mounting tubes has a telescopically connected movable rod inside, and the end of the movable rod is fixed with a scraper that fits tightly against the inner wall of the conveyor housing.

[0010] Preferably, each of the three sets of mounting tubes is equipped with a compression spring, and the end of the compression spring is connected to a limiting plate that is fixedly connected to the movable rod.

[0011] Preferably, the outer wall of the transmission rod is fixed with helical blades, and the outer surface of the transmission rod is fitted with a fixed bearing embedded in the housing of the conveyor.

[0012] Preferably, a support leg is fixed to the lower surface of the material conveyor housing.

[0013] Preferably, the disassembly mechanism includes a connecting plate, which is fixed to the end of the conveyor housing, and a movable part is connected to the end of the connecting plate.

[0014] Preferably, the end of the movable part is connected to a discharge pipe, and a fixing bolt that is threadedly connected to the movable part is installed inside the connecting plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] 1. The conveying mechanism can transport the raw materials and scrape off the raw materials adhering to the inner wall of the conveyor shell, which can effectively reduce the amount of raw materials adhering to the inner wall of the conveyor shell. Under the action of the elasticity of the compression spring, the limit plate will be pushed to move, thereby driving the scraper to better contact the inner wall of the conveyor shell and improve the cleaning effect.

[0017] 2. The disassembly mechanism allows for the removal of the fixing bolts on the connecting plate, thus facilitating the maintenance of the conveyor's internal components. Attached Figure Description

[0018] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0019] Figure 1 This is an overall structural view of the present invention;

[0020] Figure 2 This is a half-sectional structural diagram of the outer shell of the material conveyor of this utility model;

[0021] Figure 3 This is a three-dimensional structural diagram of the spiral blade of this utility model;

[0022] Figure 4 For the present utility model Figure 3 A magnified view of A in the middle.

[0023] Explanation of reference numerals in the attached figures:

[0024] 1. Conveyor housing; 2. Feed inlet; 3. Conveyor motor; 31. Drive wheel; 32. Conveyor belt; 33. Driven wheel; 34. Transmission rod; 35. Mounting pipe; 36. Movable rod; 37. Scraper; 38. Compression spring; 39. Limiting plate; 4. Spiral blade; 5. Fixed bearing; 6. Support leg; 7. Connecting plate; 71. Movable part; 72. Discharge pipe; 73. Fixing bolt. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a technical solution:

[0027] Please see Figures 1 to 4 A screw conveyor that is easy to clean includes a conveyor housing 1, an inlet 2 installed on the outer surface of the conveyor housing 1, a conveying mechanism for conveying materials on the side wall of the conveyor housing 1, and a disassembly mechanism for disassembling the conveyor at the end of the conveyor housing 1.

[0028] The conveying mechanism includes a conveying motor 3, which is bolted to the outer wall of the conveyor housing 1. The power output shaft of the conveying motor 3 is fixed with a drive wheel 31. The outer wall of the drive wheel 31 is connected to a conveyor belt 32. A driven wheel 33 is connected to one side of the conveyor belt 32. A transmission rod 34 is fixed inside the driven wheel 33. Three sets of mounting tubes 35 are symmetrically fixed to the outer surface of the transmission rod 34. Movable rods 36 are telescopically connected inside the three sets of mounting tubes 35. A scraper 37 that fits tightly against the inner wall of the conveyor housing 1 is fixed to the end of the movable rod 36. A compression spring 38 is installed inside the three sets of mounting tubes 35. A limiting plate 39 that is fixedly connected to the movable rod 36 is abutted to the end of the compression spring 38. A spiral blade 4 is fixed to the outer wall of the transmission rod 34. A fixed bearing 5 embedded in the conveyor housing 1 is sleeved on the outer surface of the transmission rod 34. A support leg 6 is fixed to the lower surface of the conveyor housing 1.

[0029] By adopting the above technical solution, before using the easy-to-clean spiral conveyor, the conveyor housing 1 is first placed in a suitable position. The support legs 6 provided on the conveyor housing 1 can improve the stability of the conveyor. Raw materials are fed into the conveyor through the feed inlet 2. The conveyor motor 3 is started, driving the drive wheel 31 to rotate. With the cooperation of the conveyor belt 32, the driven wheel 33 can be driven to rotate synchronously, thereby driving the transmission rod 34 to rotate. The fixed bearing 5 can ensure the stability of the transmission rod 34 during rotation. The spiral blade 4 is driven to operate, thereby conveying the raw materials. When the transmission rod 34 rotates, it drives the mounting pipe 35 to move, which in turn causes the movable rod 36 to drive the scraper 37 to run inside the conveyor housing 1. This can scrape off the raw materials adhering to the inner wall of the conveyor housing 1, effectively reducing the amount of raw materials adhering to the inner wall of the conveyor housing 1, making subsequent cleaning easier. Furthermore, under the elasticity of the compression spring 38, it will push the limit plate 39 to move, thereby driving the scraper 37 to better contact the inner wall of the conveyor housing 1, improving the cleaning effect.

[0030] Specifically, such as Figure 1 and Figure 2 As shown, the disassembly mechanism includes a connecting plate 7, which is fixed to the end of the conveyor housing 1. A movable part 71 is connected to the end of the connecting plate 7, and a discharge pipe 72 is connected to the end of the movable part 71. A fixing bolt 73 that is threadedly connected to the movable part 71 is installed inside the connecting plate 7.

[0031] By adopting the above technical solution, when the raw material is conveyed into the movable part 71, it is discharged to the outside through the discharge pipe 72. By unscrewing the fixing bolts 73 on the connecting plate 7, the fixing of the movable part 71 can be released, which facilitates the maintenance of the inside of the conveyor.

[0032] Working Principle: Before using this easy-to-clean spiral conveyor, first place the conveyor housing 1 in a suitable position. The support legs 6 on the conveyor housing 1 improve the stability of the conveyor. Raw materials are fed into the conveyor through the feed inlet 2. The conveyor motor 3 starts, driving the drive wheel 31 to rotate. With the cooperation of the conveyor belt 32, the driven wheel 33 is driven to rotate synchronously, which in turn drives the transmission rod 34 to rotate. The fixed bearing 5 ensures the stability of the transmission rod 34 during rotation. At this time, the spiral blades 4 are driven to run, thus conveying the fed raw materials. When the raw materials are conveyed into the moving part 71, they are discharged through the outlet. The material pipe 72 discharges to the outside. When the transmission rod 34 rotates, it drives the mounting pipe 35 to move, which in turn causes the movable rod 36 to drive the scraper 37 to run inside the conveyor housing 1. This can scrape off the raw material adhering to the inner wall of the conveyor housing 1, effectively reducing the amount of raw material adhering to the inner wall of the conveyor housing 1, which is convenient for subsequent cleaning. Under the action of the elasticity of the compression spring 38, it will push the limit plate 39 to move, which will drive the scraper 37 to better contact the inner wall of the conveyor housing 1, improving the cleaning effect. By unscrewing the fixing bolt 73 on the connecting plate 7, the fixing of the movable part 71 can be released, which makes it easier to maintain the inside of the conveyor.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A screw conveyor that is easy to clean, comprising a conveyor housing (1), characterized in that: The outer surface of the conveyor housing (1) is provided with a feed inlet (2), the side wall of the conveyor housing (1) is provided with a conveying mechanism for conveying materials, and the end of the conveyor housing (1) is provided with a disassembly mechanism for disassembling the conveyor. The conveying mechanism includes a conveying motor (3), which is fixed to the outer wall of the material conveyor housing (1) by bolts. The power output shaft of the conveying motor (3) is fixed with a drive wheel (31). The outer wall of the drive wheel (31) is connected to a conveyor belt (32). A driven wheel (33) is connected to one side of the conveyor belt (32). A transmission rod (34) is fixed inside the driven wheel (33). Three sets of mounting pipes (35) are symmetrically fixed on the outer surface of the transmission rod (34).

2. The screw conveyor for easy cleaning according to claim 1, characterized in that: The interior of each of the three sets of mounting tubes (35) is connected to a movable rod (36), and the end of the movable rod (36) is fixed with a scraper (37) that fits tightly against the inner wall of the conveyor housing (1).

3. The screw conveyor for easy cleaning according to claim 2, characterized in that: Each of the three sets of mounting tubes (35) is equipped with a compression spring (38), and the end of the compression spring (38) is connected to a limiting plate (39) that is fixedly connected to the movable rod (36).

4. The screw conveyor for easy cleaning according to claim 3, characterized in that: The outer wall of the transmission rod (34) is fixed with a spiral blade (4), and the outer surface of the transmission rod (34) is fitted with a fixed bearing (5) embedded in the outer shell (1) of the conveyor.

5. The screw conveyor for easy cleaning according to claim 1, characterized in that: The lower surface of the feeder housing (1) is fixed with a support leg (6).

6. The screw conveyor for easy cleaning according to claim 1, characterized in that: The disassembly mechanism includes a connecting plate (7), which is fixed to the end of the feeder housing (1), and the end of the connecting plate (7) is connected to a movable part (71).

7. A screw conveyor for easy cleaning according to claim 6, characterized in that: The end of the movable part (71) is connected to the discharge pipe (72), and the inside of the connecting plate (7) is fitted with a fixing bolt (73) that is threadedly connected to the movable part (71).