A belt cleaning device

By incorporating a conveyor belt scraper in a concrete mixing plant, the problem of hardened materials scratching the conveyor belt is solved by scraping off the adhering material, thus achieving centralized collection and efficient processing of materials.

CN224410540UActive Publication Date: 2026-06-26SHANGHAI CHUNXIANG CONCRETE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SHANGHAI CHUNXIANG CONCRETE CO LTD
Filing Date
2025-08-29
Publication Date
2026-06-26

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Abstract

The application discloses a conveying belt scraping device, relates to the technical field of the scraping device, and comprises a conveying belt and a frame body, the conveying belt is obliquely arranged on the frame body, and a scraping assembly for scraping off materials adhered to the conveying belt is arranged below the conveying belt. The scraping assembly comprises a mounting shaft and a scraping strip, the mounting shaft is rotatably arranged on the frame body, the axis of the mounting shaft is perpendicular to the length direction of the conveying belt, the scraping strip is fixedly wound around the mounting shaft, and the scraping strip is arranged in contact with the conveying belt. When the conveying belt works, the scraping strip is in contact with the conveying belt and scrapes off the materials adhered to the conveying belt through mutual friction, the scraping strip is driven to rotate slowly by the friction force at this time, the scraping strip and the conveying belt surface generate relative movement, the materials adhered to the conveying belt are scraped off better, the conveying belt is prevented from being scratched after the materials are hardened, the service life of the conveying belt is effectively prolonged, and the equipment maintenance cost is reduced.
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Description

Technical Field

[0001] This application relates to the technical field of scraping devices, and in particular to a conveyor belt scraping device. Background Technology

[0002] A concrete mixing plant mainly consists of five major systems: a mixer, a material weighing system, a material conveying system, a material storage system, and a control system, as well as other auxiliary facilities. Among them, the material conveying system is the bridge connecting the various systems of the mixing plant. The material conveying system transfers materials and plays an important role in the mixing plant. One link is that the material conveying system uses a conveyor belt to transport the weighed materials into the mixer for mixing.

[0003] In related technologies, the mixers in a batching plant are often quite large. To facilitate the output of the mixed concrete, the mixer consists of a feed inlet, a mixing chamber, and a discharge outlet, arranged from high to low. The conveyor belt of the material conveying system transports the material from a low position and is then inclined upwards to connect with the feed inlet of the material weighing system. After the material weighing system weighs the material, it is output onto the conveyor belt and transported into the mixer.

[0004] Regarding the aforementioned technologies, since concrete materials, including sand and gravel, have a certain degree of moisture, some material will stick to the conveyor belt during material transportation. After the material hardens, it will form raised lumps, which will aggravate scratches on the conveyor belt surface when rubbing against the idlers and rollers, reducing the service life of the conveyor belt and increasing equipment maintenance costs. Therefore, this application proposes a conveyor belt scraping device. Utility Model Content

[0005] This application provides a conveyor belt scraping device.

[0006] This application provides a conveyor belt scraping device, which adopts the following technical solution:

[0007] A conveyor belt scraping device includes a conveyor belt and a frame. The conveyor belt is obliquely mounted on the frame. The device also includes a scraping assembly for scraping off material adhering to the conveyor belt. The scraping assembly is mounted on the frame and located below the conveyor belt. The scraping assembly includes a mounting shaft and a scraper. The mounting shaft is rotatably mounted on the frame, and the axis of the mounting shaft is perpendicular to the length direction of the conveyor belt. The scraper is wound and fixed around the circumference of the mounting shaft and is in contact with the conveyor belt.

[0008] By adopting the above technical solution, when the conveyor belt is working, the scraper contacts the conveyor belt and rubs against it to scrape off the material adhering to the conveyor belt. At this time, the scraper is driven by friction to slowly rotate the mounting shaft, and the scraper and the surface of the conveyor belt generate relative movement, which better scrapes off the material adhering to the conveyor belt, prevents the material from scratching the conveyor belt after hardening, effectively extends the service life of the conveyor belt, and reduces equipment maintenance costs.

[0009] Preferably, a support trough for receiving scraped material is provided below the conveyor belt. The support trough is also installed at an angle on the frame. The support trough is arranged along the length of the conveyor belt and is parallel to the conveyor belt.

[0010] By adopting the above technical solution, the bearing trough is parallel to the length of the conveyor belt and is installed on the frame and located below the conveyor belt. It can promptly receive the material scraped off by the scraping component, preventing the material from falling directly to the ground or other parts. This not only keeps the working environment clean, but also facilitates the centralized collection and subsequent processing of the scraped material.

[0011] Preferably, there are multiple scraping components that are evenly arranged along the length of the conveyor belt, and all of the multiple scraping components are located above the bearing groove.

[0012] By adopting the above technical solution, multiple scraping components are used to scrape the conveyor belt in segments, further improving the thoroughness of scraping and ensuring that the material on the conveyor belt is completely removed.

[0013] Preferably, a material baffle is provided on the lower side of the bearing trough to block the material that is scraped off and rolls down in the bearing trough; a material leakage port is also provided on the bearing trough, and the material leakage port is located close to the material baffle.

[0014] By adopting the above technical solution, when the scraped material falls into the bearing trough, since the bearing trough is also inclined, the material rolls towards the lower end of the bearing trough under the action of gravity, and is eventually blocked by the material baffle, preventing the material from spilling from the lower end of the bearing platform; at the same time, a material leakage port is opened on the bearing trough near the material baffle to facilitate the timely discharge of material in the bearing trough and prevent excessive accumulation of material in the trough from affecting the normal operation of the scraping device.

[0015] Preferably, a funnel is provided below the material outlet, the funnel is fixed on the frame, and a collection trough for collecting the scraped material is provided below the outlet of the funnel, the collection trough being located on the ground.

[0016] By adopting the above technical solution, a funnel fixed on the frame is set below the material discharge port, and a collection trough on the ground is set below the discharge port of the funnel. The material in the carrying trough is guided to the collection trough through the funnel, realizing the centralized collection of scraped material, which facilitates the subsequent storage and processing of material, reduces material waste, and improves the efficiency and convenience of material collection.

[0017] Preferably, the outlet of the funnel and the collecting trough are provided with a collecting pipe. The collecting pipe is installed at the outlet of the funnel and communicates with the funnel. The end of the collecting pipe away from the funnel extends into the collecting trough.

[0018] By adopting the above technical solution, a collection pipe is installed between the funnel outlet and the collection trough. One end of the collection pipe is connected to the funnel, and the other end extends into the collection trough. This can further regulate the falling path of the material, ensure that the material falls accurately into the collection trough, prevent the material from spilling out of the collection trough during the falling process, improve the reliability and accuracy of material collection, and at the same time make the material transmission smoother and reduce blockage.

[0019] Preferably, the mounting shaft is detachably mounted on the frame.

[0020] By adopting the above technical solution, when the scraper blade is worn or damaged due to long-term use, the mounting shaft can be quickly disassembled, making it convenient to replace the entire scraping device.

[0021] Preferably, mounting plates are provided on both sides of the conveyor belt, and the two mounting plates are fixed on the frame respectively. The axis of the mounting shaft is perpendicular to the mounting plate. The mounting shaft has fixing protrusions at both ends, and the fixing protrusions are set perpendicular to the mounting plates. The fixing protrusions are fitted with bushings. Fixing holes that engage with the bushings are opened on the two mounting plates.

[0022] By adopting the above technical solution, the mounting plate provides stable support for the mounting shaft, and the bushing reduces the friction when the mounting shaft rotates, ensuring that the mounting shaft can rotate smoothly. This allows the scraper to maintain good contact with the conveyor belt surface, ensuring the stability and reliability of the scraping effect.

[0023] In summary, this application includes at least one of the following beneficial technical effects:

[0024] 1. By rotating the mounting shaft on the frame and winding the scraper around the mounting shaft, when the conveyor belt is working, the scraper contacts the conveyor belt and rubs against each other to scrape off the material adhering to the conveyor belt. At this time, the scraper is driven by friction to slowly rotate the mounting shaft, and the scraper and the surface of the conveyor belt generate relative motion, which better scrapes off the material adhering to the conveyor belt, prevents the material from scratching the conveyor belt after hardening, effectively extends the service life of the conveyor belt, and reduces equipment maintenance costs;

[0025] 2. A carrying trough along the length of the conveyor belt is set up to receive the scraped material. In conjunction with material baffles, discharge ports, funnels, collection troughs, and collection pipes, the falling path of the material is standardized to ensure that the material falls accurately into the collection trough, preventing the material from spilling out of the collection trough during the falling process, improving the reliability and accuracy of material collection, and making material transmission smoother and reducing blockages; the material is guided to the collection trough for subsequent unified storage and processing.

[0026] 3. The mounting shaft is detachably installed through a snap-fit ​​structure consisting of a mounting plate, a fixing protrusion, a bushing, and a fixing hole. When the scraper blade wears or is damaged due to long-term use, the mounting shaft can be quickly disassembled, facilitating the replacement of the entire scraping device. Multiple scraping components are evenly distributed along the conveyor belt, further improving the thoroughness of scraping and ensuring that the material on the conveyor belt is completely removed. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the overall structure of an embodiment of this application;

[0028] Figure 2 This is a schematic diagram showing the carrying tank, funnel, collecting pipe and collecting tank separately in the embodiments of this application;

[0029] Figure 3 This is a schematic diagram showing the scraping component separately in an embodiment of this application.

[0030] Reference numerals: 1. Frame; 2. Conveyor belt; 3. Scraper assembly; 31. Mounting shaft; 32. Scraper blade; 4. Bearing groove; 41. Material outlet; 5. Funnel; 6. Collection pipe; 7. Collection groove; 8. Mounting plate. Detailed Implementation

[0031] The following is in conjunction with the appendix Figure 1 - Appendix Figure 3 This application will be described in further detail.

[0032] This application discloses a conveyor belt scraping device.

[0033] refer to Figure 1 A conveyor belt scraping device includes a frame 1, a conveyor belt 2 for conveying materials, a scraping assembly 3 for scraping off materials adhering to the conveyor belt 2, a receiving trough 4 for receiving the scraped materials, a funnel 5, a collection pipe 6, and a collection trough 7 for collecting the scraped materials.

[0034] refer to Figure 1 and Figure 2 The conveyor belt 2 is installed at an angle on the frame 1, and the scraper assembly 3 is installed on the frame 1 and located below the conveyor belt 2. The carrying trough 4 is welded and fixed to the frame 1 on both sides and located below the conveyor belt 2. The carrying trough 4 is set at an angle and parallel to the conveyor belt 2. The carrying trough 4 is set along the length of the conveyor belt 2. A material baffle for blocking the material scraped off and rolling down the carrying trough 4 is welded and fixed to the lower end of the carrying trough 4. A material outlet 41 is opened on the carrying trough 4 and is close to the material baffle. The funnel 5 is set below the material outlet 41 of the carrying trough 4 and welded and fixed to the frame 1. The collection trough 7 is placed on the ground. One end of the collection pipe 6 is welded and fixed to the outlet of the funnel 5, and the other end of the collection pipe 6 extends into the collection trough 7. The collection pipe 6 connects the funnel 5 and the collection trough 7.

[0035] refer to Figure 1 and Figure 3 Specifically, the scraping assembly 3 includes a mounting shaft 31 and a scraper 32. The axis of the mounting shaft 31 is perpendicular to the length of the conveyor belt 2. The mounting shaft 31 has integrally formed fixing protrusions at both ends, and bushings are fitted onto the fixing protrusions. Mounting plates 8 are provided on both sides of the conveyor belt 2. The two mounting plates 8 are welded and fixed to the frame 1 respectively. The axis of the mounting shaft 31 is perpendicular to the two mounting plates 8. Fixing holes are provided on both mounting plates 8. The fixing protrusions at both ends of the mounting shaft 31 are rotatably mounted on the frame 1 through the bushings passing through the fixing holes on the two mounting plates 8 respectively. The scraper 32 is a spiral rod. The scraper 32 is fixed around the mounting shaft 31 by welding and is in contact with the conveyor belt 2. When the conveyor belt 2 is working, the scraper 32 contacts the conveyor belt 2 and rubs against each other to scrape off the material adhering to the conveyor belt 2. At this time, the scraper 32 is driven by the friction force to drive the mounting shaft 31 to rotate slowly. The scraper 32 and the surface of the conveyor belt 2 generate relative movement, which better scrapes off the material adhering to the conveyor belt 2, prevents the material from scratching the conveyor belt 2 after hardening, effectively extends the service life of the conveyor belt 2, and reduces equipment maintenance costs.

[0036] refer to Figure 1 and Figure 3 Multiple scraping components 3 are provided and evenly arranged along the length of the conveyor belt 2. All scraping components 3 are located above the carrying trough 4. By using multiple scraping components 3 to scrape the conveyor belt 2 in segments, the thoroughness of scraping is further improved, ensuring that the material on the conveyor belt 2 is completely removed. In this embodiment, two scraping components 3 are provided: one scraping component 3 is located at the higher end of the carrying trough 4, and the other scraping component 3 is located in the middle of the carrying trough 4.

[0037] The implementation principle of this embodiment is as follows: When the conveyor belt 2 is running, the material adhering to the conveyor belt 2 moves with the conveyor belt 2 to the scraping assembly 3. The scraper 32 contacts the surface of the conveyor belt 2 and generates friction. Under the action of friction, the mounting shaft 31 rotates, causing relative movement between the scraper 32 and the conveyor belt 2, thereby scraping off the adhering material. The scraped material falls into the carrying trough 4 below. Since the carrying trough 4 is set along the length of the conveyor belt 2 and parallel to the conveyor belt 2, the material can move towards the lower side of the carrying trough 4 under the action of gravity, and is eventually blocked by the material baffle. The blocked material falls from the discharge port 41, is guided by the funnel 5, and enters the collection trough 7 through the collection pipe 6, realizing the centralized collection of the scraped material.

[0038] In summary, by rotating the mounting shaft 31 on the frame 1 and winding the scraper 32 around the mounting shaft 31, when the conveyor belt 2 is working, the scraper 32 contacts the conveyor belt 2 and rubs against each other to scrape off the material adhering to the conveyor belt 2. At this time, the scraper 32 is driven by friction to slowly rotate the mounting shaft 31, and the scraper 32 and the surface of the conveyor belt 2 generate relative movement, which better scrapes off the material adhering to the conveyor belt 2, prevents the material from scratching the conveyor belt 2 after hardening, effectively extends the service life of the conveyor belt 2, and reduces equipment maintenance costs.

[0039] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A belt cleaning device comprising a belt (2) and a frame (1), the belt (2) being mounted obliquely on the frame (1), characterized in that It also includes a scraping assembly (3) for scraping off material adhering to the conveyor belt (2), the scraping assembly (3) being mounted on the frame (1) and located below the conveyor belt (2); the scraping assembly (3) includes a mounting shaft (31) and a scraper (32), the mounting shaft (31) being rotatably mounted on the frame (1), the axis of the mounting shaft (31) being perpendicular to the length direction of the conveyor belt (2), the scraper (32) being wound and fixed around the mounting shaft (31), and the scraper (32) being in contact with the conveyor belt (2).

2. The conveyor belt scraping device according to claim 1, characterized in that, The conveyor belt (2) is provided with a support groove (4) for receiving scraped material. The support groove (4) is also installed at an angle on the frame (1). The support groove (4) is arranged along the length of the conveyor belt (2) and parallel to the conveyor belt (2).

3. The conveyor belt scraping device according to claim 2, characterized in that, The scraping assembly (3) is provided in multiple ways and is evenly arranged along the length of the conveyor belt (2), and the multiple scraping assemblies (3) are all located above the bearing groove (4).

4. A conveyor belt scraping device according to claim 3, characterized in that, A material baffle is provided on the lower side of the bearing groove (4) to block the material that rolls down in the bearing groove (4); a material leakage port (41) is also provided on the bearing groove (4), and the material leakage port (41) is located close to the material baffle.

5. A conveyor belt scraping device according to claim 4, characterized in that, A funnel (5) is provided below the material outlet (41). The funnel (5) is fixed on the frame (1). A collection trough (7) for collecting scraped material is provided below the outlet of the funnel (5). The collection trough (7) is located on the ground.

6. A conveyor belt scraping device according to claim 5, characterized in that, The outlet of the funnel (5) and the collection trough (7) are provided with a collection pipe (6). The collection pipe (6) is installed at the outlet of the funnel (5) and communicates with the funnel (5). The end of the collection pipe (6) away from the funnel (5) extends into the collection trough (7).

7. A conveyor belt scraping device according to claim 1, characterized in that, The mounting shaft (31) can be detachably mounted on the frame (1).

8. A conveyor belt scraping device according to claim 2, characterized in that, The conveyor belt (2) is provided with mounting plates (8) on both sides. The two mounting plates (8) are fixed on the frame (1) respectively. The axis of the mounting shaft (31) is perpendicular to the mounting plate (8). The mounting shaft (31) is provided with fixing protrusions at both ends. The fixing protrusions are set perpendicular to the mounting plate (8). The fixing protrusions are fitted with bushings. The two mounting plates (8) are provided with fixing holes that engage with the bushings.