Belt cleaning device of belt conveyor

By designing adjustable cleaning rollers and limit rollers on the belt conveyor, the problem of poor cleaning effect caused by changes in conveyor belt tension is solved, and a stable cleaning effect is achieved when the conveyor belt tension changes.

CN223973294UActive Publication Date: 2026-03-06XUZHOU HUAFENG MEASUREMENT & CONTROL TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2026-03-06

AI Technical Summary

Technical Problem

Existing belt conveyor cleaning devices have poor cleaning effects due to variations in conveyor belt tension.

Method used

A belt cleaning device for a conveyor belt was designed, including a rotatable cleaning roller and a limiting roller, which are set up in a way that allows them to move up and down. The position of the cleaning roller and the limiting roller is adjusted by compression springs and tension springs to ensure that the cleaning layer is in continuous contact with the surface of the conveyor belt. The cleaning layer is made of wear-resistant and flexible material and the limiting roller is made of buffer rubber to achieve effective cleaning of the conveyor belt.

Benefits of technology

When the tension of the conveyor belt changes, the cleaning device can automatically adjust to ensure that the cleaning layer is in continuous contact with the surface of the conveyor belt, improve the cleaning effect, avoid damage to the conveyor belt, and achieve a stable cleaning effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a belt cleaning device of a belt conveyor, which comprises a conveyor body and a cleaning device, and the conveyor body comprises a conveying belt; the cleaning device comprises a cleaning roller and a limiting roller, the cleaning roller is rotatably arranged on the lower side of a wall plate at the bottom of the conveying belt, a cleaning layer is detachably installed on the outer side wall of the cleaning roller, and the cleaning layer abuts against the side wall of the bottom of the conveying belt; the limiting roller is arranged on the upper side of a wall plate at the bottom of the conveying belt in a rotating mode, and the limiting roller is arranged over the cleaning roller. The cleaning roller and the limiting roller are arranged in an up-and-down movable mode, when the tightness degree of the conveying belt changes, under the action of the compression spring and the telescopic spring, the positions of the cleaning roller and the limiting roller are automatically adjusted, it is guaranteed that the conveying belt is tensioned, and meanwhile it is guaranteed that a cleaning layer is in continuous contact with the surface of the conveying belt; and the change of the tightness of the conveying belt does not influence the cleaning of impurities on the surface of the conveying belt.
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Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyors, and specifically relates to a belt cleaning device for belt conveyors. Background Technology

[0002] Belt conveyors, also known as rubber belt conveyors, are widely used in various industries such as home appliances, electronics, electrical appliances, machinery, tobacco, injection molding, post and telecommunications, printing, and food for the assembly, testing, debugging, packaging, and transportation of objects.

[0003] When a belt conveyor transports materials, some of the transported materials will adhere to the surface of the conveyor belt. Therefore, a cleaning device is required to clean the conveyor belt. The existing cleaning device is fixed in position after installation. Since the tension of the conveyor belt changes during use, the contact between the conveyor belt and the cleaning device is not good, which affects the cleaning effect of the cleaning device on the conveyor belt.

[0004] The information disclosed in this background section is intended only to enhance the understanding of the overall background of this utility model and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Utility Model Content

[0005] The purpose of this invention is to provide a belt cleaning device for a belt conveyor, which can solve the problem that the cleaning effect of the cleaning device on the conveyor belt is not good due to the change in the tension of the conveyor belt.

[0006] To achieve the above objectives, the technical solution provided by a specific embodiment of this utility model is as follows:

[0007] A belt cleaning device for a belt conveyor includes:

[0008] The conveyor body includes the conveyor belt;

[0009] The cleaning device includes a cleaning roller and a limiting roller. The cleaning roller is rotatably mounted on the lower side of the bottom wall panel of the conveyor belt. A cleaning layer is detachably installed on the outer side wall of the cleaning roller, and the cleaning layer abuts against the bottom side wall of the conveyor belt. When the cleaning roller rotates, it drives the cleaning layer to rotate, thus cleaning impurities adhering to the surface of the conveyor belt. Since the cleaning layer is detachable, it can be easily replaced after wear, ensuring the cleaning layer's cleaning effect on the cleaning roller. The limiting roller is rotatably mounted on the upper side of the bottom wall panel of the conveyor belt, directly above the cleaning roller. Through the cooperation of the cleaning roller and the limiting roller, the conveyor belt can rotate between the cleaning roller and the limiting roller. When the limiting roller cleans the surface of the conveyor belt, the limiting roller can also abut against the surface of the conveyor belt in the opposite direction, thereby improving the cleaning effect of the limiting roller on the conveyor belt. Both ends of the cleaning roller and the limiting roller are provided with a pair of mounting plates. The front and rear ends of the cleaning roller and the limiting roller are mounted between the pair of mounting plates in a way that allows them to move up and down. This means that when the tension of the conveyor belt changes, the cleaning layer can be continuously and fully in contact with the surface of the conveyor belt by adjusting the up and down positions of the cleaning roller and the limiting roller. This ensures that changes in the tension of the conveyor belt will not affect the cleaning effect of the cleaning layer on the conveyor belt.

[0010] In one or more embodiments of this utility model, the cleaning layer is made of a wear-resistant brush body, thereby improving the service life of the cleaning layer. Simultaneously, the brush body of the cleaning layer should be made of a flexible material to ensure that it will not damage the surface of the conveyor belt. The limiting roller is made of rubber to provide a buffer space when it reverses contact with the conveyor belt, ensuring that the conveyor belt is not damaged during cleaning.

[0011] In one or more embodiments of this utility model, the mounting plate is provided with mounting holes, and a pair of sliding grooves are provided on the inner sidewalls on the left and right sides of the mounting holes.

[0012] In one or more embodiments of this utility model, a first mounting shaft is fixedly connected to both the front and rear ends of the limiting roller. A first bearing is mounted on the end of the first mounting shaft away from the limiting roller. A first mounting block is mounted on the outer wall of the first bearing. The first mounting block is placed in a mounting hole. A first slider is slidably connected in a pair of sliding grooves. The end of the first slider located outside the sliding groove is fixedly connected to the side wall of the first mounting block. The sliding of the first slider in the sliding groove can drive the first mounting block to move up and down. The movement of the first mounting block can drive the first mounting shaft to move up and down, thereby driving the limiting roller to move up and down through the up and down movement of the first mounting shaft, thus realizing the adjustment of the vertical position of the limiting roller.

[0013] In one or more embodiments of this utility model, a compression spring is fixedly connected to the inner top wall of the chute, and the lower end of the compression spring is fixedly connected to a first slider. Since the compression spring exerts a downward pushing force on the first slider, the limiting roller can exert a downward pushing force on the conveyor belt under the action of the compression spring.

[0014] In one or more embodiments of this utility model, a second mounting shaft is fixedly connected to both the front and rear ends of the cleaning roller. A second bearing is mounted on the end of the second mounting shaft away from the cleaning roller. A second mounting block is mounted on the outer wall of the second bearing. The second mounting block is placed in a mounting hole. A second slider is slidably connected in the slide groove. The end of the second slider, located outside the slide groove, is fixedly connected to the side wall of the second mounting block. The sliding of the second slider in the slide groove can drive the second mounting block to move up and down. The movement of the second mounting block can drive the second mounting shaft to move up and down, thereby driving the cleaning roller to move up and down through the up and down movement of the second mounting shaft, thus achieving adjustment of the vertical position of the cleaning roller.

[0015] In one or more embodiments of this utility model, a tension spring is fixedly connected to the inner sidewall of the bottom of the chute, and the upper end of the tension spring is fixedly connected to the bottom of the second slider. Since the tension spring exerts a downward pushing force on the second slider, the cleaning roller can also exert a downward force under the action of the tension spring.

[0016] In one or more embodiments of this utility model, a pair of adjusting screws are fixedly connected to the bottom of the first mounting block and the top of the second mounting block, and an adjusting sleeve is threaded between the pair of adjusting screws. The lower end of the adjusting screw at the bottom of the first mounting block is threaded to the upper end of the adjusting sleeve, and the upper end of the adjusting screw at the top of the second mounting block is threaded to the lower end of the adjusting sleeve. By rotating the adjusting sleeve, the distance between the adjusting screws at the upper and lower ends of the adjusting sleeve can be changed, thereby causing the adjusting screws to change the distance between the cleaning roller and the limiting roller, thus adjusting the clamping force of the cleaning roller and the limiting roller on the cleaning roller, and adjusting the degree of adhesion between the cleaning layer and the surface of the cleaning roller.

[0017] In one or more embodiments of this utility model, a scraper is fixedly connected to the side wall of the second mounting block near the conveyor belt. A support rod is installed at the upper end of the scraper, so that the support rod can move when the second mounting block moves up and down. The support rod is located below the bottom wall panel of the conveyor belt, and a gap is provided between the support rod and the bottom surface of the conveyor belt. The support rod can only come into contact with impurities when they adhere to the surface of the conveyor belt, thereby avoiding damage to the conveyor belt. At the same time, the movable nature of the support rod allows it to move with changes in the tension of the conveyor belt, ensuring that the gap between the support rod and the conveyor belt is maintained.

[0018] In one or more embodiments of this utility model, a collection box is provided at the bottom of the conveyor belt. The collection box is located below the cleaning roller, and the cleaned impurities are collected through the collection box.

[0019] Compared with the prior art, this utility model sets the cleaning roller and the limiting roller in a way that allows them to move up and down. When the tension of the conveyor belt changes, the cleaning roller and the limiting roller automatically adjust their positions under the action of the compression spring and the extension spring. This ensures that while the conveyor belt is tensioned, the cleaning layer is in continuous contact with the surface of the conveyor belt, so that changes in the tension of the conveyor belt will not affect the cleaning of impurities on its surface. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of a belt cleaning device for a belt conveyor in one embodiment of the present invention;

[0022] Figure 2 This is a perspective view of a belt cleaning device for a belt conveyor according to an embodiment of the present invention;

[0023] Figure 3 This is a cross-sectional view of a belt cleaning device for a belt conveyor according to one embodiment of the present invention;

[0024] Figure 4 This is a cross-sectional view of a belt cleaning device for a belt conveyor according to one embodiment of the present invention;

[0025] Figure 5 This utility model Figure 4 A schematic diagram at point A in the middle;

[0026] Figure 6 This is a cross-sectional view of the mounting plate in this utility model.

[0027] Explanation of key figure labels:

[0028] 1-Conveyor body, 11-Conveyor belt, 2-Cleaning device, 21-Cleaning roller, 22-Cleaning layer, 23-Limiting roller, 24-Mounting plate, 25-Mounting hole, 26-First mounting shaft, 27-First bearing, 28-First mounting block, 29-Slide groove, 210-First slider, 211-Compression spring, 212-Second mounting shaft, 213-Second bearing, 214-Second mounting block, 215-Second slider, 216-Tension spring, 217-Adjusting screw, 218-Adjusting screw sleeve, 219-Scraper, 220-Support rod, 221-Collection box. Detailed Implementation

[0029] To enable those skilled in the art to better understand the technical solutions of this utility model, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of this utility model.

[0030] like Figure 1 and Figure 2 As shown, a belt cleaning device for a belt conveyor in one embodiment of the present invention includes a conveyor body 1 and a cleaning device 2.

[0031] like Figure 1 and Figure 2 As shown, the conveyor body 1 includes a conveyor belt 11.

[0032] like Figures 1-4As shown, the cleaning device 2 includes a cleaning roller 21 and a limiting roller 23. The cleaning roller 21 is rotatably mounted on the lower side of the bottom wall of the conveyor belt 11. A cleaning layer 22 is detachably installed on the outer side wall of the cleaning roller 21. The cleaning layer 22 abuts against the bottom side wall of the conveyor belt 11, so that when the cleaning roller 21 rotates, it drives the cleaning layer 22 to rotate, thus cleaning the impurities attached to the surface of the conveyor belt 11. Since the cleaning layer 22 is detachable, it can be easily replaced after wear, ensuring the cleaning effect of the cleaning layer 22 on the cleaning roller 21. The limiting roller 23 is rotatably mounted on the upper side of the bottom wall of the conveyor belt 11. The limiting roller 23 is positioned directly above the cleaning roller 21. Through the cooperation of the cleaning roller 21 and the limiting roller 23, the conveyor belt 11 can rotate between the cleaning roller 21 and the limiting roller 23. When the limiting roller 23 cleans the surface of the conveyor belt 11, the limiting roller 23 can abut against the surface of the conveyor belt 11 in the opposite direction, thereby improving the cleaning effect of the limiting roller 23 on the conveyor belt 11. Both ends of the cleaning roller 21 and the limiting roller 23 are provided with a pair of mounting plates 24. The front and rear ends of the cleaning roller 21 and the limiting roller 23 are installed between the pair of mounting plates 24 in a way that allows them to move up and down. This allows the cleaning roller 21 and the limiting roller 23 to move up and down between the pair of mounting plates 24, so that when the tension of the conveyor belt 11 changes, the cleaning layer 22 can be continuously and fully in contact with the surface of the conveyor belt 11 by adjusting the up and down position of the cleaning roller 21 and the limiting roller 23. This ensures that the change in the tension of the conveyor belt 11 will not affect the cleaning effect of the cleaning layer 22 on the conveyor belt 11.

[0033] Optionally, the mounting plate 24 can be welded to the support beam or fixed to the ground, depending on the actual situation, as long as stability is ensured.

[0034] Preferably, the cleaning layer 22 is made of a wear-resistant brush body, thereby improving the service life of the cleaning layer 22. At the same time, the brush body of the cleaning layer 22 should be made of a flexible material to ensure that it will not damage the surface of the conveyor belt 11. The limiting roller 23 is made of rubber so that there is a buffer space when the limiting roller 23 reverses contact with the conveyor belt 11, ensuring that the conveyor belt 11 will not be damaged during cleaning.

[0035] like Figures 3-6 As shown, mounting holes 25 are provided on the mounting plate 24, and a pair of sliding grooves 29 are provided on the inner sidewalls on both sides of the mounting holes 25.

[0036] like Figures 3-6As shown, both ends of the limiting roller 23 are fixedly connected to a first mounting shaft 26. A first bearing 27 is mounted on the end of the first mounting shaft 26 away from the limiting roller 23. A first mounting block 28 is mounted on the outer wall of the first bearing 27. The first mounting block 28 is placed in the mounting hole 25. A first slider 210 is slidably connected in a pair of sliding grooves 29. The end of the first slider 210 located outside the sliding groove 29 is fixedly connected to the side wall of the first mounting block 28. The sliding of the first slider 210 in the sliding groove 29 can drive the first mounting block 28 to move up and down. The movement of the first mounting block 28 can drive the first mounting shaft 26 to move up and down. Thus, the up and down movement of the first mounting shaft 26 drives the limiting roller 23 to move up and down, thereby adjusting the up and down position of the limiting roller 23.

[0037] like Figures 3-6 As shown, a compression spring 211 is fixedly connected to the inner top wall of the chute 29, and the lower end of the compression spring 211 is fixedly connected to the first slider 210. Since the compression spring 211 exerts a downward pushing force on the first slider 210, the limiting roller 23 can exert a downward pushing force on the conveyor belt 11 under the action of the compression spring 211.

[0038] like Figures 3-6 As shown, a second mounting shaft 212 is fixedly connected to both the front and rear ends of the cleaning roller 21. A second bearing 213 is mounted on the end of the second mounting shaft 212 away from the cleaning roller 21. A second mounting block 214 is mounted on the outer wall of the second bearing 213. The second mounting block 214 is placed in the mounting hole 25. A second slider 215 is slidably connected in the slide groove 29. The end of the second slider 215 located outside the slide groove 29 is fixedly connected to the side wall of the second mounting block 214. The sliding of the second slider 215 in the slide groove 29 can drive the second mounting block 214 to move up and down. The movement of the second mounting block 214 can drive the second mounting shaft 212 to move up and down. Thus, the up and down movement of the second mounting shaft 212 drives the cleaning roller 21 to move up and down, thereby adjusting the vertical position of the cleaning roller 21.

[0039] like Figures 3-6 As shown, a tension spring 216 is fixedly connected to the inner sidewall of the bottom of the slide 29, and the upper end of the tension spring 216 is fixedly connected to the bottom of the second slider 215. Since the tension spring 216 exerts a downward pushing force on the second slider 215, the cleaning roller 21 can also exert a downward force under the action of the tension spring 216.

[0040] like Figure 1 and Figure 6As shown, a pair of adjusting screws 217 are fixedly connected to the bottom of the first mounting block 28 and the top of the second mounting block 214, and an adjusting sleeve 218 is threaded between the pair of adjusting screws 217. The lower end of the adjusting screw 217 at the bottom of the first mounting block 28 is threaded to the upper end of the adjusting sleeve 218, and the upper end of the adjusting screw 217 at the top of the second mounting block 214 is threaded to the lower end of the adjusting sleeve 218. By rotating the adjusting sleeve 218, the distance between the adjusting screws 217 at the upper and lower ends of the adjusting sleeve 218 can be changed. This causes the adjusting screws 217 to change the distance between the cleaning roller 21 and the limiting roller 23, thereby adjusting the clamping force of the cleaning roller 21 and the limiting roller 23 on the cleaning roller 21, and adjusting the degree of adhesion between the cleaning layer 22 and the surface of the cleaning roller 21.

[0041] Preferably, under the action of the compression spring 211 and the tension spring 216, both the limiting roller 23 and the cleaning roller 21 have a downward force. When the conveyor belt 11 becomes loose, the limiting roller 23 and the cleaning roller 21 will cause the conveyor belt 11 to move downward, so as to tighten the loose conveyor belt 11. When the tension of the conveyor belt 11 is counteracted by the elastic force of the compression spring 211 and the tension spring 216, the position of the cleaning roller 21 and the limiting roller 23 will stabilize. Thus, when the tension of the conveyor belt 11 changes, the position of the cleaning roller 21 and the limiting roller 23 will move accordingly, ensuring that the cleaning layer 22 can maintain continuous contact with the surface of the conveyor belt 11, so as to ensure that the change in the tension of the conveyor belt 11 will not affect the cleaning effect of the cleaning layer 22 on the conveyor belt 11. At the same time, by moving the cleaning roller 21 and the limiting roller 23, the tension of the conveyor belt 11 can also be adjusted to ensure that the conveyor belt 11 is always in a taut state, ensuring the safety of the conveyor belt 11 when conveying materials.

[0042] like Figure 1 and Figure 6 As shown, a scraper 219 is fixedly connected to the side wall of the second mounting block 214 near the conveyor belt 11. A support rod 220 is installed at the upper end of the scraper 219, so that the support rod 220 can move when the second mounting block 214 moves up and down. The support rod 220 is located below the bottom wall panel of the conveyor belt 11, and a gap is provided between the support rod 220 and the bottom surface of the conveyor belt 11. The support rod 220 can only come into contact with impurities when they are attached to the surface of the conveyor belt 11, thereby avoiding damage to the conveyor belt 11. At the same time, the movable nature of the support rod 220 allows it to move with changes in the tension of the conveyor belt 11, ensuring that the gap between the support rod 220 and the conveyor belt 11 is maintained.

[0043] like Figure 1 and Figure 2As shown, a collection box 221 is provided at the bottom of the conveyor belt 11. The collection box 221 is located below the cleaning roller 21, and the cleaned impurities are collected through the collection box 221.

[0044] In use, rotating the adjusting sleeve 218 moves the adjusting screws 217 at both ends of the adjusting sleeve 218, thereby adjusting the clamping force of the cleaning roller 21 and the limiting roller 23 on the conveyor belt 11. This ensures sufficient contact between the cleaning layer 22 and the surface of the conveyor belt 11. When the conveyor belt 11 rotates, it moves between the cleaning roller 21 and the limiting roller 23, thus causing the cleaning roller 21 and the limiting roller 23 to rotate. When the conveyor belt 11 moves and contacts the cleaning layer 22, the cleaning layer 22 can clean the impurities attached to the surface of the conveyor belt 11. If the conveyor belt 1... When the tension of conveyor belt 11 changes due to the change in tension, the cleaning roller 21 and the limiting roller 23 can be driven to move under the action of the compression spring 211 and the tension spring 216, thereby driving the conveyor belt 11 to adjust the tension. When the tension of conveyor belt 11 is the same as the force of the compression spring 211 and the tension spring 216, the position of cleaning roller 21 and limiting roller 23 will be stable. At the same time, when cleaning roller 21 and limiting roller 23 move with the change in tension of conveyor belt 11, the cleaning layer 22 can continuously contact the conveyor belt 11, ensuring the cleaning effect on impurities on conveyor belt 11.

[0045] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0046] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A belt cleaning device for a belt conveyor, characterized in that The utility model relates to a cleaning device of conveying machine, including: Conveyer body, including conveying belt; The utility model discloses a cleaning device of conveying machine, including cleaning roller and limiting roller, the cleaning roller is rotatably arranged in the lower side of the bottom wall board of conveying belt, and the outer side wall of the cleaning roller is detachably installed with cleaning layer, and the cleaning layer is abutted on the bottom side wall of conveying belt, the limiting roller is rotatably arranged in the upper side of the bottom wall board of conveying belt, and the limiting roller is arranged directly above the cleaning roller, and a pair of mounting plates are arranged to the front and rear ends of the cleaning roller and limiting roller, and the front and rear ends of the cleaning roller and limiting roller are detachably installed between a pair of mounting plates.

2. A belt cleaning device for a belt conveyor according to claim 1, characterized in that The material of the cleaning layer is a wear-resistant brush body, and the material of the limiting roller is rubber.

3. A belt cleaning device for a belt conveyor according to claim 1, characterized in that Mounting holes are formed in the mounting plates, and a pair of sliding grooves are formed in the inner side walls on the left and right sides of the mounting holes.

4. A belt cleaning device for a belt conveyor according to claim 3, characterized in that First mounting shafts are fixedly connected to the front and rear ends of the limiting roller, first bearings are mounted on the ends of the first mounting shafts away from the limiting roller, first mounting blocks are mounted on the outer side walls of the first bearings, the first mounting blocks are arranged in the mounting holes, first sliding blocks are slidably connected in the sliding grooves, and the first sliding blocks are fixedly connected to the side walls of the first mounting blocks at the ends outside the sliding grooves.

5. A belt cleaning device for a belt conveyor according to claim 4, characterized in that Compression springs are fixedly connected to the top inner side walls of the sliding grooves, and the lower ends of the compression springs are fixedly connected to the first sliding blocks.

6. A belt cleaning device for a belt conveyor according to claim 5, characterized in that Second mounting shafts are fixedly connected to the front and rear ends of the cleaning roller, second bearings are mounted on the ends of the second mounting shafts away from the cleaning roller, second mounting blocks are mounted on the outer side walls of the second bearings, the second mounting blocks are arranged in the mounting holes, second sliding blocks are slidably connected in the sliding grooves, and the second sliding blocks are fixedly connected to the side walls of the second mounting blocks at the ends outside the sliding grooves.

7. A belt cleaning device for a belt conveyor according to claim 6, characterized in that Tension springs are fixedly connected to the bottom inner side walls of the sliding grooves, and the upper ends of the tension springs are fixedly connected to the bottoms of the second sliding blocks.

8. A belt cleaning device for a belt conveyor according to claim 7, characterized in that A pair of adjusting screws are fixedly connected to the bottoms of the first mounting blocks and the tops of the second mounting blocks, and adjusting nuts are threadedly connected between the adjusting screws.

9. A belt cleaning device for a belt conveyor according to claim 8, characterized in that Scraping plates are fixedly connected to the side walls of the second mounting blocks close to the conveying belt, support rods are mounted on the upper ends of the scraping plates, and the support rods are arranged below the bottom wall board of the conveying belt.

10. A belt cleaning device for a belt conveyor according to claim 1, characterized in that A material collecting box is arranged at the bottom of the conveying belt and below the cleaning roller.