Anti-falling type scraper conveyer structure

By incorporating cleaning, clamping, and guiding mechanisms into the scraper conveyor, the problems of chain slippage and scraper jamming caused by sprocket contamination have been solved, achieving both sprocket cleaning and scraper stability.

CN224257544UActive Publication Date: 2026-05-19TONGMEI DATANG TASHAN COAL MINE CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
TONGMEI DATANG TASHAN COAL MINE CO LTD
Filing Date
2025-07-28
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

During the use of existing scraper conveyors, the drive sprocket is easily contaminated with substances, causing the chain to shift or fall off. Insufficient tension between the chain and the drive sprocket assembly can also cause the scraper to jam or fall off, affecting the performance of the machine.

Method used

The scraper conveyor is equipped with a cleaning mechanism, a pressing mechanism, and a guiding mechanism. The cleaning mechanism cleans the sprocket assembly with a brush roller, the pressing mechanism presses the chain with a pressure roller, and the guiding mechanism guides the scraper with rollers to ensure the fit between the sprocket and the chain and the stability of the scraper.

Benefits of technology

It effectively prevents the chain from falling off, ensures the sprocket is clean, enhances the fit between the chain and the sprocket, prevents the scraper from getting stuck or falling off, and improves the reliability of use.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an anti-falling type scraper conveyer structure, and relates to the technical field of scraper conveyors. Comprising a rack, a chain wheel assembly is installed between the left side wall and the right side wall of the rack through a driving assembly, a cleaning mechanism is fixedly installed between the left side wall and the right side wall, corresponding to the rear side face of the chain wheel assembly, of the rack, a chain assembly is arranged on the chain wheel assembly, and a pressing mechanism is arranged between the left side wall and the right side wall, corresponding to the chain assembly, of the rack; the pressing mechanism is arranged on the chain assembly in a pressing mode, scrapers are evenly arranged on the chain assembly, and guide mechanisms are arranged on the left side face and the right side face of each scraper. The cleaning function of the chain wheel assembly is added, the chain wheel assembly is ensured to be clean, the chain wheel assembly and the chain assembly are more matched, the chain assembly can be pressed on the chain wheel assembly, the chain assembly is effectively prevented from falling off, the guiding function of the left side face and the right side face of the scraper is added, the scraper is not prone to being clamped or damaged or falling off, and use is facilitated.
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Description

Technical Field

[0001] This utility model relates to the field of scraper conveyor technology, specifically to a scraper conveyor structure designed to prevent slippage. Background Technology

[0002] A scraper conveyor is a conveyor that uses a scraper chain to transport bulk materials within a trough. A KS scraper conveyor whose adjacent intermediate troughs can bend to a limited extent in the horizontal and vertical planes is called a flexible scraper conveyor. A working face conveyor whose body is bent at a 90-degree angle at the intersection of the working face and the transport roadway is called a "corner scraper conveyor." In modern coal mining faces, scraper conveyors not only transport coal and materials but also serve as the running track for the coal mining machine, making them an indispensable main piece of equipment in modern coal mining technology.

[0003] In existing technologies, conventional scraper conveyors lack a cleaning function for the drive sprockets during use. The drive sprockets can become contaminated with a large amount of coal and other substances, causing the chain to shift and the chain to come off. Insufficient tension between the chain and the drive sprocket assembly can also easily cause the chain to come off. Furthermore, during use, the scraper can easily rub against the left and right side walls of the frame, causing the scraper to get stuck in a certain place, resulting in damage or detachment of the scraper, which is detrimental to its use. Utility Model Content

[0004] This utility model provides a scraper conveyor structure with anti-fall-off properties to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a scraper conveyor structure for preventing detachment, comprising a frame, a sprocket assembly mounted between the left and right side walls of the frame via a drive assembly, a cleaning mechanism fixedly mounted between the left and right side walls of the frame corresponding to the rear side of the sprocket assembly, and the cleaning mechanism movably fitting against the rear side of the sprocket assembly, a chain assembly provided on the sprocket assembly, a pressing mechanism provided between the left and right side walls of the frame corresponding to the chain assembly, and the pressing mechanism pressing against the chain assembly, scrapers evenly arranged on the chain assembly, and guide mechanisms provided on the left and right sides of the scrapers.

[0006] Furthermore, the cleaning mechanism includes a motor, a first bearing assembly, and a brush roller. The motor is fixedly installed on the right side wall of the frame, the first bearing assembly is installed on the inner wall of the left side wall of the frame, and a brush roller is installed between the output shaft of the motor and the first bearing assembly.

[0007] Furthermore, the clamping mechanism includes a fixed plate, bolt rods, a second bearing assembly, a bearing seat, and a pressure roller. Two fixed plates are arranged on the left and right sides, respectively, and are installed on the left and right sides of the frame near the upper side. Bolt rods are threaded onto each fixed plate, and bearing seats are installed on the lower end of each bolt rod through the second bearing assembly. A pressure roller is installed between the left and right bearing seats.

[0008] Furthermore, elongated holes are provided on the left and right side walls of the frame corresponding to the pressure roller input shaft to allow the pressure roller input shaft to pass through vertically.

[0009] Furthermore, the pressure roller is positioned on the upper surface of the sprocket assembly near the right edge.

[0010] Furthermore, the guiding mechanism includes a mounting groove, a third bearing assembly, and a roller. The scraper has mounting grooves on both its left and right sides. The upper and lower inner walls of the mounting grooves are each fitted with a third bearing assembly, and a roller is installed between the upper and lower third bearing assemblies. The roller is in movable contact with the inner wall of the frame.

[0011] Compared with the prior art, this utility model provides a scraper conveyor structure that prevents slippage, which has the following advantages:

[0012] 1. The anti-detachment scraper conveyor structure adds a cleaning function to the sprocket assembly by setting a cleaning mechanism, ensuring the cleanliness of the sprocket assembly and making the sprocket assembly and chain assembly fit better. In addition, the clamping mechanism can press the chain assembly onto the sprocket assembly, effectively preventing the chain assembly from falling off.

[0013] 2. The structure of this anti-fall-off scraper conveyor increases the guiding function of the left and right sides of the scraper by setting a guiding mechanism, so that the scraper will not scrape against the inner walls of the left and right sides of the frame, making the scraper less likely to get stuck, damaged or fall off, which is beneficial to use. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 This is a top sectional view of the cleaning mechanism of this utility model;

[0016] Figure 3 This is a schematic diagram of the pressing mechanism of this utility model;

[0017] Figure 4 This is a cross-sectional view of the scraper of this utility model.

[0018] In the diagram: 1. Frame; 2. Drive assembly; 3. Sprocket assembly; 4. Cleaning mechanism; 401. Motor; 402. First bearing assembly; 403. Brush roller; 5. Chain assembly; 6. Pressing mechanism; 601. Fixing plate; 602. Bolt rod; 603. Second bearing assembly; 604. Bearing seat; 605. Pressure roller; 7. Scraper; 8. Guide mechanism; 801. Mounting groove; 802. Third bearing assembly; 803. Roller; 9. Long slot. Detailed Implementation

[0019] 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.

[0020] Please see Figures 1-4 This utility model discloses a structure for an anti-detachment scraper conveyor, including a frame 1. A sprocket assembly 3 is installed between the left and right side walls of the frame 1 via a drive assembly 2. A cleaning mechanism 4 is fixedly installed between the left and right side walls of the frame 1 corresponding to the rear side of the sprocket assembly 3, and the cleaning mechanism 4 is movably fitted to the rear side of the sprocket assembly 3. A chain assembly 5 is provided on the sprocket assembly 3. A pressing mechanism 6 is provided between the left and right side walls of the frame 1 corresponding to the chain assembly 5, and the pressing mechanism 6 presses on the chain assembly 5. Scrapers 7 are evenly arranged on the chain assembly 5, and guide mechanisms 8 are provided on the left and right sides of the scrapers 7.

[0021] Specifically, the cleaning mechanism 4 includes a motor 401, a first bearing assembly 402, and a brush roller 403. The motor 401 is fixedly installed on the right side wall of the frame 1, the first bearing assembly 402 is installed on the inner wall of the left side wall of the frame 1, and the brush roller 403 is installed between the output shaft of the motor 401 and the first bearing assembly 402.

[0022] In this embodiment, the motor 401 drives the brush roller 403 to rotate in the first bearing assembly 402. The brush roller 403 cleans the contaminants on the sprocket assembly 3. The brush roller 403 is a wire brush.

[0023] Specifically, the pressing mechanism 6 includes a fixed plate 601, a bolt rod 602, a second bearing assembly 603, a bearing seat 604, and a pressure roller 605. There are two fixed plates 601 arranged on the left and right sides, respectively, and the fixed plates 601 are installed on the left and right sides of the frame 1 near the upper side. Each fixed plate 601 is threaded with a bolt rod 602. The lower end of each bolt rod 602 is equipped with a bearing seat 604 through the second bearing assembly 603, and a pressure roller 605 is installed between the left and right bearing seats 604.

[0024] In this embodiment, the left and right bolt rods 602 move downward spirally within the fixed plate 601, causing the bolt rods 602 to drive the bearing seats 604 to move downward through the second bearing assembly 603. The left and right bearing seats 604 drive the pressure rollers 605 to move downward, causing the pressure rollers 605 to press against the upper surface of the scraper 7. The scraper 7 drives the chain assembly 5 to move downward, causing the chain assembly 5 to adhere to the upper surface of the sprocket assembly 3, thus preventing the chain assembly 5 from falling off.

[0025] Specifically, the left and right side walls of the frame 1 corresponding to the input shaft of the pressure roller 605 are provided with elongated holes 9 for the input shaft of the pressure roller 605 to pass through vertically.

[0026] In this embodiment, the elongated hole 9 meets the requirements for the up-and-down movement of the pressure roller 605.

[0027] Specifically, the pressure roller 605 is located on the upper surface of the sprocket assembly 3 near the right edge.

[0028] In this embodiment, the pressure roller 605 can stably press the chain assembly 5 onto the sprocket assembly 3.

[0029] Specifically, the guide mechanism 8 includes a mounting groove 801, a third bearing assembly 802, and a roller 803. The scraper 7 has mounting grooves 801 on both its left and right sides. The third bearing assembly 802 is embedded in the upper and lower inner walls of the mounting groove 801, and a roller 803 is installed between the upper and lower third bearing assemblies 802. The roller 803 is in movable contact with the inner wall of the frame 1.

[0030] In this embodiment, the upper and lower inner walls of the mounting groove 801 are used for mounting the third bearing assembly 802, the third bearing assembly 802 is used for mounting the roller 803, and the roller 803 extends partially out of the scraper 7, so that the roller 803 on the left and right sides of the scraper 7 can move and fit against the left and right inner walls of the frame 1, thereby increasing the guiding function of the scraper 7 and preventing the scraper 7 from rubbing against the inner wall of the frame 1.

[0031] In use, drive assembly 2 drives sprocket assembly 3 to rotate, causing the front and rear sprocket assemblies 3 to move the chain assembly 5. During this process, motor 401 in cleaning mechanism 4 drives brush roller 403 to rotate in first bearing assembly 402. Brush roller 403 cleans contaminants on sprocket assembly 3, ensuring the cleanliness of the outer surface of sprocket assembly 3 and effectively preventing contaminants on sprocket assembly 3 from lifting chain assembly 5. This makes sprocket assembly 3 and chain assembly 5 fit more closely. Then, the left and right bolt rods 602 in clamping mechanism 6 move spirally downward in fixed plate 601, causing bolt rods 602 to drive the shaft through second bearing assembly 603. The bearing seat 604 moves downward, and the left and right bearing seats 604 drive the pressure roller 605 to move downward, so that the pressure roller 605 presses against the upper surface of the scraper 7, causing the scraper 7 to drive the chain assembly 5 downward, thereby making the chain assembly 5 fit against the upper surface of the sprocket assembly 3, preventing the chain assembly 5 from falling off. The chain assembly 5 drives the scraper 7 to move, and the rollers 803 in the guide mechanism 8 partially extend out of the scraper 7, so that the rollers 803 on the left and right sides of the scraper 7 can move and fit against the left and right inner walls of the frame 1, so that the scraper 7 will not rub against the inner wall of the frame 1, increasing the guiding function of the left and right sides of the scraper 7, making the scraper 7 less likely to get stuck, damaged or fall off, which is beneficial to use.

[0032] In summary, this anti-detachment scraper conveyor structure enhances the cleaning function of the sprocket assembly 3, ensuring its cleanliness, making the sprocket assembly 3 and chain assembly 5 fit together better, and allowing the chain assembly 5 to be pressed onto the sprocket assembly 3, effectively preventing the chain assembly 5 from falling off. It also enhances the guiding function of the left and right sides of the scraper 7, making the scraper 7 less prone to jamming, damage, or detachment, thus facilitating its use.

[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A structure for an anti-fall-off scraper conveyor, comprising a frame (1), characterized in that: A sprocket assembly (3) is installed between the left and right side walls of the frame (1) via a drive assembly (2). A cleaning mechanism (4) is fixedly installed between the left and right side walls of the frame (1) corresponding to the rear side of the sprocket assembly (3). The cleaning mechanism (4) is movably fitted to the rear side of the sprocket assembly (3). A chain assembly (5) is provided on the sprocket assembly (3). A pressing mechanism (6) is provided between the left and right side walls of the frame (1) corresponding to the chain assembly (5). The pressing mechanism (6) is pressed onto the chain assembly (5). Scrapers (7) are evenly provided on the chain assembly (5). Guide mechanisms (8) are provided on both the left and right sides of the scraper (7).

2. The anti-fall-off scraper conveyor structure according to claim 1, characterized in that: The cleaning mechanism (4) includes a motor (401), a first bearing assembly (402) and a brush roller (403). The motor (401) is fixedly installed on the right side wall of the frame (1), and the first bearing assembly (402) is installed on the inner wall of the left side wall of the frame (1). The brush roller (403) is installed between the output shaft of the motor (401) and the first bearing assembly (402).

3. The anti-fall-off scraper conveyor structure according to claim 1, characterized in that: The pressing mechanism (6) includes a fixed plate (601), a bolt rod (602), a second bearing assembly (603), a bearing seat (604), and a pressure roller (605). There are two fixed plates (601) on the left and right sides. The fixed plates (601) are respectively installed on the left and right sides of the frame (1) near the upper side. The fixed plates (601) are threaded with bolt rods (602). The lower end of the bolt rods (602) is equipped with a bearing seat (604) through the second bearing assembly (603). The pressure roller (605) is installed between the left and right bearing seats (604).

4. The anti-detachment scraper conveyor structure according to claim 3, characterized in that: The left and right side walls of the frame (1) corresponding to the input shaft of the pressure roller (605) are provided with elongated holes (9) for the input shaft of the pressure roller (605) to pass through vertically.

5. The anti-detachment scraper conveyor structure according to claim 3, characterized in that: The pressure roller (605) is located on the upper surface of the sprocket assembly (3) near the right edge.

6. The anti-detachment scraper conveyor structure according to claim 1, characterized in that: The guide mechanism (8) includes a mounting groove (801), a third bearing assembly (802), and a roller (803). The scraper (7) has mounting grooves (801) on both the left and right sides. The third bearing assembly (802) is embedded in the upper and lower inner walls of the mounting groove (801), and a roller (803) is installed between the upper and lower third bearing assemblies (802). The roller (803) is in movable contact with the inner wall of the frame (1).