Adjustable belt scraper

Abstract

The utility model provides convenient belt scraper sweeper relates to belt scraper cleaning equipment technical field, including belt conveyer, the left and right sides fixed connection of belt conveyer have mounting panel, the inside of mounting panel is close to the front end of belt conveyer and is provided with first pass cleaning subassembly, and the installation support of first connecting shaft fixedness is matched with two groups of galvanized high strength spring steel adjusting spring, can automatically with the contact pressure of polyurethane scraper and belt stability 100-150N, completely remove most of the front end loose material, avoid excessive pressure damage belt, and spring can buffer belt vibration, ensure stable contact, the installation slide of main connecting frame design lets polyurethane scraper can slide installation, quick replacement, maintenance efficiency is high and low cost, in addition, the transparent protective cover outside spring can block dust and sundries, prolong the spring life, also convenient for direct observation, the whole adaptation belt front end cleaning demand, balanced cleaning effect, equipment protection and operation convenience.

Description

Technical Field

[0001] This utility model relates to the technical field of belt scraper cleaning equipment, and in particular to an adjustable belt scraper cleaner. Background Technology

[0002] In industrial production, belt conveyors are widely used in mines, docks, warehouses, and other places for continuous material transportation. However, during the transportation process, it is inevitable that some material will remain on the belt. Traditional belt cleaning devices usually use a single scraper structure, such as ordinary rubber scrapers or metal scrapers. These scrapers are directly fixed to the bracket and apply fixed pressure to the belt for cleaning. The installation method is relatively simple and crude, lacking an effective pressure adjustment mechanism. It is difficult to make adaptive adjustments according to different working conditions and material characteristics. Moreover, when encountering highly viscous or hard materials, a single scraper often cannot completely clean them, which can easily lead to material accumulation on the belt. This not only affects the conveying efficiency but also causes problems such as accelerated belt wear, belt deviation, and even damage. In addition, traditional cleaning devices are also inconvenient to maintain. Scraper replacement is difficult. Once the scraper is severely worn, it is necessary to stop the machine for a long time for replacement and adjustment, which increases the risk of production interruption and maintenance costs.

[0003] A search revealed that the document with publication number "CN217376160U" mentions "a scraper cleaner for a belt conveyor, including a frame rod, an adjustable tensioning device on the frame rod, and a threaded hole on the frame rod. A fixing device is installed in the threaded hole, and a scraper assembly is installed on the fixing device. The fixing device includes a rotating block, a threaded screw, and a fastening threaded block. One side of the rotating block is connected to the threaded screw, and the end of the threaded screw away from the threaded block passes through the threaded hole on the frame rod. The end of the threaded screw is threadedly connected to the fastening threaded block. The scraper assembly includes a scraper element and a fixing rod installed at the bottom of the scraper element. The fixing rod has a fixing hole and is installed in a fixing groove. The fixing groove is located on the outside of the frame rod and communicates with the threaded hole." This design allows for easy installation and disassembly of the scraper during use.

[0004] However, traditional single-blade cleaning devices cannot adjust the contact pressure between the scraper and the belt according to actual needs. This can lead to excessive pressure damaging the belt or insufficient pressure failing to effectively remove material. They also have poor adaptability to different types of materials with varying viscosity and hardness, making it difficult to thoroughly remove fine, sticky materials and stubborn deposits. Especially when dealing with high-strength, high-residue materials, cleaning efficiency is low. Furthermore, the lack of an effective buffer to cope with belt vibration during operation results in unstable contact between the scraper and the belt, further affecting cleaning performance and equipment lifespan. Scraper replacement is difficult, and the absence of a convenient sliding installation structure leads to low maintenance efficiency, long downtime, and increased production costs. They generally only have basic cleaning functions and cannot be designed to meet the differentiated cleaning needs of different parts, such as the front end, middle section, and return section. When the scraper malfunctions, the entire cleaning system fails, as there is no redundancy design to reduce downtime risk.

[0005] Therefore, we offer an adjustable belt scraper cleaner to solve the above problems. Utility Model Content

[0006] To overcome the above deficiencies, this utility model provides an adjustable belt scraper cleaner, which aims to solve the problems mentioned above.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] An adjustable belt scraper cleaner includes a belt conveyor belt. Mounting plates are fixedly connected to the left and right sides of the belt conveyor belt. A first cleaning assembly is provided on the inner side of the mounting plates near the front end of the belt conveyor belt. The first cleaning assembly includes a first connecting shaft mounted on the inner side of the mounting plates near the front end of the belt conveyor belt. A first mounting bracket is mounted on the surface of the first connecting shaft. A second cleaning assembly is installed at the middle position of the inner side of the mounting plates. The second cleaning assembly includes a second connecting shaft mounted at the middle position of the inner side of the mounting plates. A second adjusting spring is mounted on the upper end of the second connecting shaft. A gap cleaning assembly is installed at the lower end of the belt conveyor belt. The gap cleaning assembly includes a mounting block mounted at the lower end of the belt conveyor belt. A connecting rod is mounted on the inner side of the mounting block.

[0009] As a further description of the above technical solution:

[0010] The mounting plate is fixedly connected to the belt conveyor by bolts. There are two mounting plates, which are symmetrically distributed on the left and right sides of the belt conveyor. The mounting plates are made of stainless steel.

[0011] As a further description of the above technical solution:

[0012] A first adjusting spring is installed at the upper end of the first mounting bracket. A transparent protective cover is provided on the surface of the first adjusting spring. A main connecting frame is installed on the left side of the first mounting bracket. An installation slide is installed on the surface of the main connecting frame. A polyurethane scraper is installed on the surface of the installation slide. The first scraper is made of polyurethane material and has a long strip structure.

[0013] As a further description of the above technical solution:

[0014] A second mounting bracket is installed on the left side of the second adjusting spring. A second polyurethane scraper is installed on the upper end of the second mounting bracket. A third connecting shaft is provided on the rear side of the second connecting shaft. A third mounting bracket is installed on the surface of the third connecting shaft. An alloy scraper is fixedly connected to the upper end of the third mounting bracket. The alloy scraper is made of high wear-resistant special hard tungsten steel alloy material, and its length is adapted to the length of the second polyurethane scraper.

[0015] As a further description of the above technical solution:

[0016] There are two sets of the first adjusting spring. The elastic coefficient of the first adjusting spring is the same as that of the second adjusting spring. Both the first and second adjusting springs are made of high-strength spring steel and are galvanized to enhance their rust resistance.

[0017] As a further description of the above technical solution:

[0018] The two ends of the connecting rod are fixedly connected to a frame. The frame has a V-shaped structure and is made of metal. A cleaning scraper made of polyurethane is installed on the surface of the frame. Its shape is adapted to the curvature of the non-working surface of the belt conveyor. A connecting rope made of nylon is installed on the upper surface of the frame. There are two sets of the connecting rope, and the ends of the two sets of connecting ropes away from the frame are connected to the belt conveyor.

[0019] As a further description of the above technical solution:

[0020] There are two mounting blocks. Each mounting block is a metal block structure, and a bearing adapted to the connecting rod is installed on its inner side. The connecting rod and the mounting block are connected by a rotating rod.

[0021] Compared with the prior art, the beneficial effects of this utility model are:

[0022] By setting up the first cleaning component, and using a mounting bracket fixed to the first connecting shaft with two sets of galvanized high-strength spring steel adjusting springs, the contact pressure between the polyurethane scraper and the belt can be automatically stabilized at 100-150N. This thoroughly removes most of the loose material at the front end while preventing excessive pressure from damaging the belt. At the same time, the springs can buffer belt vibration and ensure stable contact. The installation slide design of the main connecting frame allows the polyurethane scraper to be slidably installed and quickly replaced, resulting in high maintenance efficiency and low cost. In addition, the transparent protective cover outside the spring can block dust and debris, extend the spring's life, and facilitate visual inspection. The overall design is adapted to the front-end cleaning needs of the belt, balancing cleaning effect, equipment protection, and ease of operation and maintenance.

[0023] By incorporating a second cleaning component, employing a combination of polyurethane and tungsten carbide scrapers, the polyurethane scraper, pressurized by an adjusting spring, first removes fine, sticky materials. Then, a high-wear-resistant alloy scraper treats stubborn residue, achieving secondary cleaning. This system is adaptable to different types of materials. The two scrapers are installed via independent connecting shafts, allowing for individual adjustment of position and pressure to meet personalized cleaning needs. Furthermore, if one scraper fails, the other can still operate, reducing downtime risks. Simultaneously, the adjusting spring is of the same specification as the first component, ensuring coordinated and stable pressure adjustment. This system is suitable for high-intensity, high-residue intermediate cleaning scenarios, significantly improving cleaning efficiency and equipment reliability.

[0024] By incorporating a sweeping component for empty sections, the V-shaped metal frame guides spilled materials to both sides for easy centralized cleaning, reducing bottom accumulation. The polyurethane scraper conforms to the curvature of the non-working surface of the belt, thoroughly scraping away residual materials and preventing roller wear and belt misalignment caused by materials getting stuck between the belt and the tail roller. In addition, nylon connecting ropes limit frame sway and cushion impacts. The bearings and rotating rods within the mounting block allow the frame to adjust its angle slightly with the belt, improving dynamic adaptability and providing overall protection for the rear transmission system. This reduces cleaning workload and equipment maintenance costs, and is suitable for cleaning non-working surfaces on the return trip. Attached Figure Description

[0025] Figure 1 This is a schematic diagram of the overall appearance structure of this utility model;

[0026] Figure 2 This is a schematic diagram of the overall bottom view of the present invention;

[0027] Figure 3 This is a schematic diagram of the cooperative structure of the connecting plate, the first cleaning component, the second cleaning component, and the empty section cleaning component of this utility model;

[0028] Figure 4 This is a schematic diagram showing the disassembled structure of the polyurethane cleaning assembly of this utility model;

[0029] Figure 5This is a schematic diagram of the second cleaning component of this utility model;

[0030] Figure 6 This is a schematic diagram of the empty section cleaning component of this utility model.

[0031] Labels in the diagram: 1. Conveyor belt; 2. Mounting plate; 3. First cleaning assembly; 301. First connecting shaft; 302. First mounting bracket; 303. First adjusting spring; 304. Transparent protective cover; 305. Main connecting frame; 306. Mounting slide; 307. First scraper; 4. Second cleaning assembly; 401. Second connecting shaft; 402. Second adjusting spring; 403. Second mounting bracket; 404. Second polyurethane scraper; 405. Third connecting shaft; 406. Third mounting bracket; 407. Alloy scraper; 5. Empty section cleaning assembly; 501. Mounting block; 502. Connecting rod; 503. Frame; 504. Cleaning scraper; 505. Connecting rope. Detailed Implementation

[0032] 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.

[0033] Please see Figure 1-6 As shown, this utility model provides a technical solution: an adjustable belt scraper cleaner, including a belt conveyor 1, mounting plates 2 fixedly connected to the left and right sides of the belt conveyor 1, a first cleaning component 3 provided on the inner side of the mounting plate 2 near the front end of the belt conveyor 1, the first cleaning component 3 including a first connecting shaft 301 installed on the inner side of the mounting plate 2 near the front end of the belt conveyor 1, a first mounting bracket 302 installed on the surface of the first connecting shaft 301, a second cleaning component 4 installed at the middle position of the inner side of the mounting plate 2, the second cleaning component 4 including a second connecting shaft 401 installed at the middle position of the inner side of the mounting plate 2, a second adjusting spring 402 installed at the upper end of the second connecting shaft 401, and a gap cleaning component 5 installed at the lower end of the belt conveyor 1, the gap cleaning component 5 including a mounting block 501 installed at the lower end of the belt conveyor 1, a connecting rod 502 installed on the inner side of the mounting block 501.

[0034] Furthermore, the mounting plate 2 is fixedly connected to the belt conveyor 1 by bolts. There are two mounting plates 2, which are symmetrically distributed on the left and right sides of the belt conveyor 1. The mounting plates 2 are made of stainless steel. With the belt conveyor 1 as the core conveying carrier, the mounting plates 2 on both sides provide a stable installation foundation and respectively support the first cleaning component 3, the second cleaning component 4, and the empty section cleaning component 5, forming a full-process cleaning system from the front end to the middle and the bottom end, covering the material removal needs of the working section and the return section of the belt.

[0035] Furthermore, a first adjusting spring 303 is installed at the upper end of the first mounting bracket 302, and a transparent protective cover 304 is provided on the surface of the first adjusting spring 303. A main connecting bracket 305 is installed on the left side of the first mounting bracket 302, and a mounting slide 306 is installed on the surface of the main connecting bracket 305. A first scraper 307 is installed on the surface of the mounting slide 306, and the first scraper 307 is made of polyurethane and has a long strip structure. The first mounting bracket 302 is fixed to the mounting plate 2 by the first connecting shaft 301. The first adjusting spring 303 at its upper end automatically adjusts the contact pressure between the first scraper 307 and the belt conveyor 1 using its elastic properties, ensuring that the pressure is within a reasonable range of 100-150N, which ensures that the cleaning is thorough and avoids damage to the belt. The transparent protective cover 304 can prevent dust and debris from adhering to the surface of the first adjusting spring 303 and extend the service life of the spring. The mounting slide 306 on the surface of the main connecting frame 305 facilitates the installation, sliding adjustment and replacement of the first scraper 307, ensuring that the scraper and the working surface of the belt are in uniform contact.

[0036] Furthermore, a second mounting bracket 403 is installed on the left side of the second adjusting spring 402, and a second polyurethane scraper 404 is installed on the upper end of the second mounting bracket 403. A third connecting shaft 405 is provided on the rear side of the second connecting shaft 401, and a third mounting bracket 406 is installed on the surface of the third connecting shaft 405. An alloy scraper 407 is fixedly connected to the upper end of the third mounting bracket 406. The alloy scraper 407 is made of high wear-resistant special hard tungsten carbide alloy, and its length is adapted to the length of the second polyurethane scraper 404. The second cleaning component 4 adopts the second polyurethane scraper 404. The dual-scraper design with alloy scraper 407, with the second mounting bracket 403 and the third mounting bracket 406 respectively fixed by the second connecting shaft 401 and the third connecting shaft 405, forms a secondary cleaning structure. The second adjusting spring 402 provides contact pressure for the second polyurethane scraper 404, first removing the small sticky materials remaining on the belt surface. The alloy scraper 407 on the third mounting bracket 406 further scrapes away stubborn adhering substances, providing double protection for the cleaning effect. The two scrapers are independently installed on different connecting shafts, and their positions and pressures can be adjusted separately, avoiding overall failure due to wear of a single scraper and extending the service life of the component.

[0037] Furthermore, two sets of first adjusting springs 303 are provided. The elastic coefficient of the first adjusting spring 303 is the same as that of the second adjusting spring 402. Both the first adjusting spring 303 and the second adjusting spring 402 are made of high-strength spring steel and are galvanized to enhance rust resistance. The elastic deformation of the springs can buffer the vibration of the belt conveyor 1 in real time, so that the scraper and the belt always maintain stable contact. This avoids excessive pressure that wears the belt and also prevents insufficient pressure that leads to incomplete cleaning.

[0038] Furthermore, a frame 503 is fixedly connected to both ends of the connecting rod 502. The frame 503 has a V-shaped structure and is made of metal. A cleaning scraper 504 made of polyurethane is installed on the surface of the frame 503. Its shape is adapted to the curvature of the non-working surface of the belt conveyor 1. A connecting rope 505 made of nylon is installed on the upper surface of the frame 503. Two sets of the connecting rope 505 are provided, and the ends of the two sets of connecting ropes 505 away from the frame 503 are connected to the belt conveyor 1. The empty section cleaning assembly 5 is installed on the belt conveyor 1. The lower end of the conveyor belt 1 is connected to the V-shaped frame 503 via the mounting block 501 and the connecting rod 502. The V-shaped design guides the material spilled on the return belt to both sides for easy centralized cleaning. The cleaning scraper 504 on the surface of the frame 503 is driven by the belt to scrape off the spilled material on the non-working surface of the belt, preventing the material from getting stuck between the belt and the tail roller, causing roller wear or belt deviation. One end of the connecting rope 505 is connected to the frame 503, and the other end is fixed to the belt conveyor 1. It can limit the shaking of the frame 503 and at the same time help adjust the contact pressure between the scraper and the belt.

[0039] Furthermore, there are two mounting blocks 501. The mounting blocks 501 are metal block structures, and bearings adapted to the connecting rods 502 are installed on their inner sides. The connecting rods 502 and the mounting blocks 501 are connected by a rotating rod. The two mounting blocks 501 are fixedly connected to the belt conveyor 1 and connected to the connecting rods 502 by the rotating rods, which enhances the stability of the empty section cleaning assembly 5.

[0040] Working Principle: Before starting the belt conveyor 1, first confirm the secure installation of all components using the mounting plates 2 on both sides. Adjust the mounting slide 306 of the first cleaning component 3 so that the first scraper 307 is in contact with the front end of the belt. Set a preset contact pressure of 100-150N using the first adjusting spring 303 and check the transparent protective cover 304. Adjust the second connecting shaft 401 and the third connecting shaft 405 of the second cleaning component 4 so that the second polyurethane scraper 404 and alloy scraper 407 are in contact with the middle area of ​​the belt. Use the preset pressure of the second adjusting spring 402. Simultaneously confirm that the mounting block 501 of the empty section cleaning component 5 is securely fixed, and that the cleaning scraper 504 of the V-shaped frame 503 is in contact with the non-working surface of the belt. Tighten the connecting rope 505 to limit the shaking of the frame 503. After starting the belt conveyor 1, the belt first drives the front end of the first... The first scraper 307 initially removes most of the loose material, and the first adjusting spring 303 buffers vibration in real time. Then, the belt moves to the middle area, where the second polyurethane scraper 404 first removes small sticky materials, and the alloy scraper 407 then removes stubborn adhering materials. The two scrapers can be adjusted independently to ensure continuous cleaning. After entering the return phase, the V-shaped frame 503 guides the spilled material to both sides, and the sweeping scraper 504 scrapes away residual materials on the non-working surface. The connecting rope 505 stabilizes the frame 503 to prevent equipment damage. After stopping, the worn first scraper 307, second polyurethane scraper 404, and sweeping scraper 504 are inspected and replaced. The first adjusting spring 303, second adjusting spring 402, and connecting parts of the empty section cleaning assembly 5 are maintained to prepare for the next operation. This completes the usage process of the adjustable belt scraper cleaner.

[0041] 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. An adjustable belt scraper cleaner, comprising a belt conveyor (1), characterized in that: Mounting plates (2) are fixedly connected to the left and right sides of the belt conveyor (1). A first cleaning assembly (3) is provided on the inner side of the mounting plate (2) near the front end of the belt conveyor (1). The first cleaning assembly (3) includes a first connecting shaft (301) installed on the inner side of the mounting plate (2) near the front end of the belt conveyor (1). A first mounting bracket (302) is installed on the surface of the first connecting shaft (301). A second cleaning assembly (4) is installed at the middle position of the inner side of the mounting plate (2). The second cleaning assembly (4) includes a second connecting shaft (401) installed at the middle position of the inner side of the mounting plate (2). A second adjusting spring (402) is installed at the upper end of the second connecting shaft (401). An empty section cleaning assembly (5) is installed at the lower end of the belt conveyor (1). The empty section cleaning assembly (5) includes a mounting block (501) installed at the lower end of the belt conveyor (1). A connecting rod (502) is installed on the inner side of the mounting block (501).

2. The adjustable belt scraper cleaner according to claim 1, characterized in that, The mounting plate (2) is fixedly connected to the belt conveyor (1) by bolts. There are two mounting plates (2), which are symmetrically distributed on the left and right sides of the belt conveyor (1). The mounting plate (2) is made of stainless steel.

3. The adjustable belt scraper cleaner according to claim 1, characterized in that, A first adjusting spring (303) is installed on the upper end of the first mounting bracket (302). A transparent protective cover (304) is provided on the surface of the first adjusting spring (303). A main connecting frame (305) is installed on the left side of the first mounting bracket (302). An installation slide (306) is installed on the surface of the main connecting frame (305). A first scraper (307) is installed on the surface of the installation slide (306). The first scraper (307) is made of polyurethane material and has a long strip structure.

4. The adjustable belt scraper cleaner according to claim 1, characterized in that, A second mounting bracket (403) is installed on the left side of the second adjusting spring (402). A second polyurethane scraper (404) is installed on the upper end of the second mounting bracket (403). A third connecting shaft (405) is provided on the rear side of the second connecting shaft (401). A third mounting bracket (406) is installed on the surface of the third connecting shaft (405). An alloy scraper (407) is fixedly connected to the upper end of the third mounting bracket (406). The alloy scraper (407) is made of high wear-resistant special hard tungsten steel alloy material, and its length is adapted to the length of the second polyurethane scraper (404).

5. The adjustable belt scraper cleaner according to claim 3, characterized in that, There are two sets of the first adjusting spring (303). The elastic coefficient of the first adjusting spring (303) is the same as that of the second adjusting spring (402). Both the first adjusting spring (303) and the second adjusting spring (402) are made of high-strength spring steel and are galvanized to enhance their rust resistance.

6. The adjustable belt scraper cleaner according to claim 5, characterized in that, The two ends of the connecting rod (502) are fixedly connected to the frame (503). The frame (503) has a V-shaped structure and is made of metal. A cleaning scraper (504) is installed on the surface of the frame (503). The cleaning scraper (504) is made of polyurethane and its shape is adapted to the curvature of the non-working surface of the belt conveyor (1). A connecting rope (505) is installed on the upper surface of the frame (503). The connecting rope (505) is made of nylon and there are two sets. The ends of the two sets of connecting ropes (505) away from the frame (503) are connected to the belt conveyor (1).

7. The adjustable belt scraper cleaner according to claim 6, characterized in that, There are two mounting blocks (501). The mounting block (501) is a metal block structure, and a bearing adapted to the connecting rod (502) is installed on its inner side. The connecting rod (502) and the mounting block (501) are connected by a rotating rod.

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