P-type alloy sweeper

Abstract

The application relates to a P-type alloy sweeper, which relates to the field of conveying device cleaning equipment and comprises a support, a plurality of elastic supports and a plurality of alloy scrapers. The plurality of elastic supports are arranged at intervals along the length direction of the support, each elastic support is connected with at least one alloy scraper, and is used for elastically abutting the alloy scraper to the working surface of a conveying belt. The plurality of alloy scrapers are arranged in sequence along the width direction of the conveying belt, two adjacent alloy scrapers are arranged in a staggered mode along the moving direction of the conveying belt, and the scraping areas of the two adjacent alloy scrapers at least partially overlap in the width direction of the conveying belt, so that the dead angle of cleaning is reduced. Each alloy scraper has a scraping edge and side edges located on both sides, and the connection between the scraping edge and the side edges forms a smooth transition part. The application can improve the cleaning coverage rate and reduce the risk of the alloy scraper end scratching or wearing the conveying belt.

Description

Technical Field

[0001] This application relates to the field of conveyor cleaning equipment, and in particular to a P-type alloy cleaner. Background Technology

[0002] Belt conveyors are widely used in material transportation applications such as coal, ore, sand, cement, and grain. After unloading, the working surface of the conveyor belt usually still has some fine particles, powder, or wet, sticky materials adhering to it. If this material enters the return section with the conveyor belt, it can easily cause problems such as material carryover, material accumulation, material sticking to the rollers, and conveyor belt misalignment. To reduce these problems, a P-type scraper is usually installed on the return side of the conveyor belt or under the head roller. This scraper uses scrapers to further remove material remaining on the conveyor belt surface after the first cleaning.

[0003] In existing P-type sweepers, to reduce the cleaning gap between adjacent scrapers, some sweepers arrange multiple scrapers in a staggered manner along the width of the conveyor belt, creating an overlap area between adjacent scrapers. This improves cleaning coverage and reduces the possibility of cleaning dead zones caused by parallel scraper installation. However, this type of structure usually focuses mainly on the arrangement of the scrapers, fit compensation, and cleaning coverage, lacking further optimization of the contact state between the scraper ends and the conveyor belt.

[0004] In practical use, the scraper of a P-type sweeper typically needs to continuously press against the working surface of the conveyor belt. Especially when the scraper is made of hard materials such as alloys, localized hard contact can easily form at the corners of the scraper ends. If the conveyor belt experiences lateral deviation, vertical vibration, or if conveyor belt joints, repair areas, or localized protrusions pass over the scraper ends during operation, it can easily cause scratches, abrasions, or localized wear on the conveyor belt surface, affecting its service life. Therefore, how to reduce the risk of damage to the conveyor belt from the scraper ends while ensuring the cleaning effect of the P-type sweeper is a problem that urgently needs to be solved in this field. Summary of the Invention

[0005] In order to ensure the cleaning effect of the P-type sweeper while reducing the risk of damage to the conveyor belt by the scraper end, this application provides a P-type alloy sweeper.

[0006] The P-type alloy cleaner provided in this application adopts the following technical solution: A P-type alloy sweeper includes a bracket, multiple elastic support members, and multiple alloy scrapers; The bracket extends along the width direction of the conveyor belt, and a plurality of elastic support members are spaced apart along the length direction of the bracket. Each elastic support member is connected to at least one alloy scraper. The elastic support member applies an elastic force toward the working surface of the conveyor belt to the corresponding alloy scraper so that the alloy scraper elastically abuts against the working surface of the conveyor belt. Multiple alloy scrapers are arranged sequentially along the width direction of the conveyor belt, with adjacent alloy scrapers staggered along the moving direction of the conveyor belt, and the scraping areas of adjacent alloy scrapers at least partially overlapping in the width direction of the conveyor belt. Each of the alloy scrapers has a scraping edge for abutting against the conveyor belt and side edges respectively disposed on both sides of the alloy scraper along the width direction of the conveyor belt, and a smooth transition portion is formed at the connection between the scraping edge and each of the side edges.

[0007] By adopting the above technical solution, multiple alloy scrapers can scrape the working surface of the conveyor belt along its width. Adjacent alloy scrapers are staggered along the conveyor belt's movement direction, and their scraping areas at least partially overlap in the width direction of the conveyor belt. This prevents the formation of cleaning gaps between adjacent scrapers due to their side-by-side arrangement, thereby reducing cleaning dead zones on the conveyor belt surface and improving the cleaning coverage of the P-type scraper. Simultaneously, each alloy scraper is elastically abutted against the working surface of the conveyor belt by elastic supports, allowing the scraper to elastically avoid surface fluctuations, conveyor belt joints, or local protrusions, thus improving the adhesion stability between the alloy scraper and the working surface of the conveyor belt. With a smooth transition section between the scraping edge and the side, the end of the alloy scraper along the width of the conveyor belt is less likely to form a sharp corner. When the conveyor belt deviates laterally, vibrates vertically, or the conveyor belt joint or repair area passes through the end of the alloy scraper, the smooth transition section can reduce the local stress concentration between the end of the alloy scraper and the conveyor belt, reducing the risk of scratching, fraying, or local wear of the conveyor belt at the end of the alloy scraper.

[0008] Preferably, the alloy scraper includes a substrate and an alloy scraper blade, the alloy scraper blade is fixedly connected to the substrate, the scraping edge is formed on the side of the alloy scraper blade away from the substrate, and the smooth transition portion includes a first transition portion disposed on the alloy scraper blade and a second transition portion disposed on the substrate.

[0009] By adopting the above technical solution, the alloy scraper can use its own hardness and wear resistance to scrape the working surface of the conveyor belt, and the base plate can support the alloy scraper, thus balancing cleaning wear resistance and installation stability. The first transition part can reduce the risk of the alloy scraper tip scratching the conveyor belt, and the second transition part can reduce the risk of scratching when the base plate tip comes into contact with the conveyor belt, materials or adjacent components, so that the entire end of the alloy scraper has a good smooth transition effect.

[0010] Preferably, the elastic support includes a blade holder, a blade post, and an elastic element. The blade holder is connected to the bracket, one end of the blade post is rotatably connected to the blade holder, and the other end of the blade post is connected to the base plate. The elastic element is disposed between the blade holder and the blade post and is used to drive the blade post to rotate toward the working surface of the conveyor belt so that the alloy scraper elastically abuts against the working surface of the conveyor belt.

[0011] By adopting the above technical solution, the tool holder can serve as the mounting base for the elastic support component, the tool post can rotate relative to the tool holder, and the elastic component can apply an elastic force to the tool post, causing the tool post to drive the alloy scraper to continuously abut against the working surface of the conveyor belt.

[0012] Preferably, the tool holder includes a tool plate and a mounting plate, one end of the tool plate is rotatably connected to the tool holder, the mounting plate is connected to the other end of the tool plate, and the base plate is connected to the mounting plate; The mounting plate has a slot, and the blade is inserted into the slot so that the mounting plate and the blade are engaged. The blade plate is provided with a blocking part, which is located downstream of the mounting plate along the conveyor belt moving direction, and the mounting plate abuts against the blocking part. The blocking part is used to restrict the mounting plate from moving relative to the blade plate along the conveyor belt moving direction.

[0013] By adopting the above technical solution, the mounting plate engages with the blade plate via a slot, which improves the positioning stability between the mounting plate and the blade plate and facilitates their fixed connection. The blocking part is located downstream of the mounting plate along the conveyor belt's movement direction. When the alloy scraper is subjected to the frictional force of the conveyor belt, the blocking part supports and limits the mounting plate, reducing the possibility of misalignment or loosening of the mounting plate relative to the blade plate, thereby improving the impact resistance and operational stability of the alloy scraper after installation.

[0014] Preferably, the tool holder is provided with a mounting cavity for inserting the tool plate, the tool plate is inserted into the mounting cavity and is rotatably connected to the tool holder by a pin; The inner wall of the mounting cavity forms a limiting surface, which is used to restrict the blade from rotating in a direction away from the working surface of the conveyor belt; When the alloy scraper elastically abuts against the working surface of the conveyor belt, there is a clearance between the blade and the limiting surface, so that the elastic element can continuously apply an elastic force to the blade.

[0015] By adopting the above technical solution, the blade is inserted into the mounting cavity and rotatably connected to the blade holder via a pin, making the rotation position of the blade more stable. The limiting surface can restrict excessive rotation of the blade, preventing it from deviating from its normal working position. When the alloy scraper elastically abuts against the working surface of the conveyor belt, there is an clearance gap between the blade and the limiting surface, allowing the blade to continue to elastically avoid contact. This facilitates the continuous application of elastic force by the elastic element to the blade, thereby maintaining the stable contact between the alloy scraper and the working surface of the conveyor belt.

[0016] Preferably, the elastic element includes a compression spring, the blade plate is provided with a spring positioning groove, the compression spring is located in the mounting cavity, one end of the compression spring is positioned in the spring positioning groove, and the other end abuts against the inner wall of the mounting cavity.

[0017] By adopting the above technical solution, the compression spring can apply an elastic pushing force to the blade plate, causing the blade plate to drive the alloy scraper to abut against the working surface of the conveyor belt. The spring positioning groove can position one end of the compression spring, reducing the possibility of the compression spring shifting, tilting, or falling out of its predetermined position during compression or rebound, thereby improving the operational stability of the elastic support component.

[0018] Preferably, the spring positioning groove includes two spaced-apart limiting grooves, the distance between the two limiting grooves being adapted to the outer diameter of the compression spring, so that one end of the compression spring can be simultaneously embedded in the two limiting grooves.

[0019] By adopting the above technical solution, one end of the compression spring can be simultaneously limited by two limiting grooves, thus forming a more stable positioning relationship between the compression spring and the blade plate. Compared with single-groove positioning, two limiting grooves can reduce the possibility of the compression spring sliding along the blade plate surface and reduce the risk of unstable elastic pushing direction caused by the compression spring being misaligned.

[0020] Preferably, the mounting cavity has an open end through which the blade plate passes, and the blade holder is provided with a sealing part at the open end, and the sealing part is provided with a sliding through hole for the blade plate to rotate; The blade is provided with elastic sealing plates on both sides, which are connected to the sealing part. The elastic sealing plates are used to elastically deform as the blade rotates and block the gap between the blade and the wall of the sliding through hole.

[0021] By adopting the above technical solution, the sliding through hole can provide clearance space for the rotation of the cutter plate relative to the cutter holder. The elastic sealing plate can generate elastic deformation with the rotation of the cutter plate and block the gap between the cutter plate and the wall of the sliding through hole, reducing the possibility of dust, wet material, mud and other impurities entering the installation cavity through the sliding through hole, thereby reducing the risk of failure of the compression spring, pin shaft and the rotating parts of the cutter plate due to material accumulation, corrosion or jamming.

[0022] Preferably, the side wall of the tool holder is provided with a strip-shaped through hole communicating with the mounting cavity, and a limiting shield is detachably provided on the tool holder. The limiting shield is used to restrict the blade from rotating toward the strip-shaped through hole. After the limiting and blocking member is removed from the tool holder, the blade plate can rotate relative to the tool holder to the position where the spring positioning groove is exposed through the strip-shaped through hole.

[0023] By adopting the above technical solution, when assembling the sweeper, the limiting obstruction is installed in the strip-shaped through hole, which can block the rotation of the blade plate, so that the blade plate can maintain a stable state and improve the convenience of sweeper assembly. When it is necessary to replace the compression spring, the limiting obstruction can be removed, so that the blade plate rotates to the position where the spring positioning groove is exposed from the strip-shaped through hole, thereby releasing the restriction of the compression spring by the spring positioning groove. The operator can then pull the compression spring out from the opening of the mounting cavity, or insert the compression spring into the preset position in the mounting cavity from the opening of the mounting cavity, and then screw the blade plate into the mounting cavity so that the compression spring is inserted into the spring positioning groove. Then, the limiting obstruction is installed in the strip-shaped through hole to block the blade plate. This means that during the replacement of the compression spring, it is not necessary to disassemble the blade plate and the blade holder, thus facilitating the replacement of the compression spring by the staff and improving the convenience of maintenance of the elastic support component.

[0024] Preferably, mounting grooves are provided on both opposite side walls of the strip-shaped through hole, and the limiting and blocking component includes a blocking plate, with both ends of the blocking plate respectively inserted into the two mounting grooves; The shielding plate includes a plug section and a shielding section extending from the plug section toward the substrate. The shielding section is located above the blade and is used to shield at least a portion of the strip-shaped through hole.

[0025] By adopting the above technical solution, the two ends of the baffle plate are respectively inserted into two mounting slots, allowing the limiting baffle to be easily installed and removed. The baffle section is located above the blade plate, which not only limits the rotation range of the blade plate but also prevents impurities on the conveyor belt from falling onto the blade plate. On the one hand, it reduces the impact of impurities on the blade plate, and on the other hand, it reduces the load on the blade plate, improving the stability of the contact between the alloy scraper and the working surface of the conveyor belt.

[0026] In summary, this application includes at least one of the following beneficial technical effects: 1. By staggering multiple alloy scrapers along the conveyor belt moving direction and ensuring that the scraping areas of two adjacent alloy scrapers at least partially overlap in the width direction of the conveyor belt, the possibility of forming cleaning gaps between adjacent alloy scrapers can be reduced, thereby improving cleaning coverage and reducing cleaning dead angles. 2. By setting a smooth transition part at the connection between the scraper edge and the side, the local stress concentration between the end of the alloy scraper and the conveyor belt can be reduced, and the risk of the alloy scraper end scratching the conveyor belt when the conveyor belt runs off track, vibrates, or the joint passes through can be reduced. 3. By setting a spring positioning groove on the blade plate, one end of the compression spring can be stably positioned on the blade plate, reducing the possibility of the compression spring shifting or tilting, and improving the stability of the elastic action of the elastic support. 4. By setting limit shielding parts, on the one hand, it is convenient for workers to replace the compression springs and improve the convenience of maintenance of elastic support parts. On the other hand, it can reduce the impact of impurities on the blade plate, reduce the load on the blade plate, and improve the stability of the alloy scraper and the working surface of the conveyor belt. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of a P-type alloy cleaner according to Embodiment 1 of this application.

[0028] Figure 2 It is a structural diagram used to demonstrate the arrangement of alloy scrapers and their relationship with the conveyor belt.

[0029] Figure 3 This is a structural diagram used to illustrate the elastic support component.

[0030] Figure 4 It is a display Figure 3 Top view of the structure.

[0031] Figure 5 It is along Figure 4 A cross-sectional view along line AA in the middle.

[0032] Figure 6 It is an exploded view used to show the relationship between the mounting plate and the blade plate.

[0033] Figure 7 This is a structural schematic diagram used to illustrate the connection relationship between the limiting shield and the tool holder in Embodiment 2.

[0034] Figure 8 It is used for display Figure 7 Top view of the structure.

[0035] Figure 9 It is a display along Figure 8A cross-sectional view along the BB line.

[0036] Figure 10 It is a display along Figure 8 A cross-sectional view of the CC line.

[0037] Explanation of reference numerals in the attached drawings: 1. Bracket; 2. Elastic support; 21. Tool holder; 211. Mounting cavity; 212. Limiting surface; 22. Tool post; 221. Tool plate; 222. Mounting plate; 223. Blocking part; 224. Spring positioning groove; 2241. Limiting groove; 225. Slot; 23. Elastic element; 231. Compression spring; 24. Sealing part; 241. First part; 242. Second part; 25. 26. Sliding through hole; 3. Elastic sealing plate; 4. Alloy scraper; 5. Scraping edge; 6. Side; 7. Base plate; 8. Alloy scraper; 9. Embedding groove; 10. Smooth transition part; 11. First transition part; 12. Second transition part; 13. Conveyor belt; 14. Fixing part; 15. Strip through hole; 16. Mounting groove; 17. Limiting and blocking part; 18. Blocking plate; 19. Insertion section; 10. Blocking section. Detailed Implementation

[0038] The following is in conjunction with the appendix Figure 1-10 This application will be described in further detail.

[0039] This application discloses a P-type alloy scraper. This P-type scraper is suitable for cleaning the return section of belt conveyors, especially for applications where it is positioned below the return side of the conveyor belt 4, with the alloy scraper 3 elastically abutting against the working surface of the conveyor belt 4 from bottom to top. This P-type scraper can further remove residual material adhering to the working surface of the conveyor belt 4 after primary cleaning, thereby reducing problems such as material carryover during return, material accumulation, and material sticking to the rollers. Example 1

[0040] Reference Figure 1 and Figure 2 A P-type alloy cleaner includes a bracket 1, multiple elastic support members 2, and multiple alloy scrapers 3. The bracket 1 is mounted on the frame of a belt conveyor and extends along the width direction of the conveyor belt 4. Both ends of the bracket 1 can be connected to the frame via spring assemblies, allowing the bracket 1 to maintain a tendency to move towards the conveyor belt 4. The multiple elastic support members 2 are spaced apart along the length direction of the bracket 1, and each elastic support member 2 supports at least one alloy scraper 3, enabling the multiple alloy scrapers 3 to perform segmented scraping of the working surface of the conveyor belt 4 along its width direction. This embodiment uses one alloy scraper 3 for each elastic support member 2 as an example.

[0041] Multiple alloy scrapers 3 are arranged sequentially along the width direction of the conveyor belt 4. Adjacent alloy scrapers 3 are staggered along the moving direction of the conveyor belt 4, and the scraping areas of adjacent alloy scrapers 3 overlap in the width direction of the conveyor belt 4. The width of the overlapping part along the length direction of the support 1 is S, so that the same width area on the working surface of the conveyor belt 4 can be scraped by at least one of the adjacent alloy scrapers 3. As a result, it is not easy for a straight-through cleaning gap to be formed between adjacent alloy scrapers 3 due to their side-by-side installation, thereby reducing the possibility of residual material passing through the gap between adjacent alloy scrapers 3.

[0042] The overlap between two adjacent alloy scrapers 3 is set to be less than a preset distance along the moving direction of the conveyor belt 4, so that the area on the conveyor belt 4 after being scraped by the end of the previous alloy scraper 3 can enter the scraping range of the next alloy scraper 3 within a shorter stroke. This can reduce the transition cleaning gap caused by excessive spacing between adjacent alloy scrapers 3, and reduce the risk of significant sagging, material back-sticking, or sudden changes in contact pressure on the return conveyor belt 4 between adjacent alloy scrapers 3.

[0043] Reference Figure 3 Each alloy scraper 3 has a scraping edge 31 for abutting the working surface of the conveyor belt 4 and side edges 32 located on both sides of the alloy scraper 3 along the width direction of the conveyor belt 4. In this embodiment, the alloy scraper 3 includes a base plate 33 and an alloy scraper 34. The base plate 33 can be made of steel plate or other metal plates with sufficient strength. An embedding groove 35 is formed on the end face of the base plate 33. The alloy scraper 34 is inserted into the embedding groove 35 and fixedly connected to the base plate 33 by brazing. The alloy scraper 34 can be made of hard alloy material to improve wear resistance and scraping ability. A smooth transition portion 36 is formed at the connection between the scraping edge 31 and the two side edges. The smooth transition portion 36 can be an arc transition structure or a smooth transition structure formed by a combination of multiple rounded surfaces, inclined surfaces or curved surfaces. By setting the smooth transition portion 36, sharp corners can be avoided at the ends of the alloy scraper 3 along the width direction of the conveyor belt 4. When the conveyor belt 4 deviates laterally or vibrates vertically, or when the joint, repair area, or local protrusion of the conveyor belt 4 passes over the end of the alloy scraper 3, the smooth transition part 36 can reduce the local cutting effect of the end of the alloy scraper 3 on the surface of the conveyor belt 4, thereby reducing the risk of the conveyor belt 4 being scratched, frayed, or locally worn.

[0044] Reference Figure 3The end face of the alloy scraper 34 away from the substrate 33 forms the scraping edge 31 of the alloy scraper 3. The two side faces 32 of the alloy scraper 3 are formed by the side end faces of the substrate 33 and the side end faces of the alloy scraper 34. A first transition portion 361 is provided at both ends of the scraping edge 31 on the alloy scraper 34, and a second transition portion 362 is provided on the substrate 33 corresponding to the ends of the alloy scraper 34. The first transition portion 361 is used to smoothly transition the end of the alloy scraper 34, and the second transition portion 362 is used to smoothly transition the end of the substrate 33. The first transition portion 361 and the second transition portion 362 together constitute the smooth transition structure of the end of the alloy scraper 3, making it less likely for sharp parts to form at the overall end of the alloy scraper 3.

[0045] Reference Figure 3 , Figure 4 and Figure 5 Each elastic support 2 includes a tool holder 21, a tool post 22, and an elastic element 23. In this embodiment, the tool holder 21 is a hollow square tube structure, forming an installation cavity 211 inside. The tool holder 21 can be installed on the bracket 1 by welding or bolting. In this embodiment, the tool post 22 includes a tool plate 221 and an installation plate 222. One end of the tool plate 221 is punched to form a pin hole, and the other end of the tool plate 221 is provided with a blocking part 223, which is integrally formed with the tool plate 221. When assembling the tool plate 221 and the tool holder 21, the end of the tool plate 221 with the pin hole is inserted into the installation cavity 211 from the tail end of the tool holder 21, and then a pin is sequentially inserted through the pin holes on the tool holder 21 and the tool plate 221, forming a hinge between the tool plate 221 and the tool holder 21. There is a certain space between the part of the blade 221 inserted into the mounting cavity 211 and the top wall of the mounting cavity 211, so that the blade 221 can generate a tendency to rotate toward the conveyor belt 4.

[0046] A spring positioning groove 224 is provided on the side of the blade plate 221 facing the bottom wall of the mounting cavity 211. The spring positioning groove 224 is offset from the pin hole. In this embodiment, the spring positioning groove 224 includes two limiting grooves 2241, which are spaced apart. In this embodiment, the elastic element 23 is a compression spring 231, which is located inside the mounting cavity 211. The distance between the two limiting grooves 2241 is adapted to the outer diameter of the compression spring 231, so that one end of the compression spring 231 can be simultaneously embedded in both limiting grooves 2241, and the other end of the compression spring 231 abuts against the bottom wall of the mounting cavity 211. The outer diameter of the compression spring 231 is the same as the width of the mounting cavity 211 perpendicular to the sliding direction of the conveyor belt 4. Therefore, the two limiting grooves 2241 can limit different positions of the end of the compression spring 231 respectively, reducing the possibility that the compression spring 231 will slide, deviate or fall out of the predetermined position along the surface of the blade plate 221 during compression or rebound, thereby improving the elastic stability of the elastic support 2.

[0047] Reference Figure 6 The mounting plate 222 has a slot 225, and the blade 221 is inserted into the slot 225, so that the mounting plate 222 and the blade 221 form a snap-fit ​​engagement. Through the engagement of the slot 225 and the blade 221, the mounting plate 222 can be positioned before it is fixed, reducing the possibility of the mounting plate 222 being misaligned relative to the blade 221.

[0048] Mounting plate 222 is installed upstream of blocking part 223 and fits against blocking part 223. When mounting plate 222 and blade plate 221 form a snap-fit ​​engagement, the contact portion between mounting plate 222, blocking part 223, and blade plate 221 is welded to achieve a fixed connection between blade plate 221 and mounting plate 222. Since the conveyor belt 4 generates a frictional force on the alloy scraper 3 along the moving direction of the conveyor belt 4 during operation, by placing blocking part 223 downstream of mounting plate 222, blocking part 223 can support and limit mounting plate 222, reducing the risk of mounting plate 222 displacing, deforming, or loosening relative to blade plate 221 under this frictional force.

[0049] The base plate 33 of the alloy scraper 3 can be bolted to the mounting plate 222. The bolted connection method facilitates the disassembly and replacement of the alloy scraper 3 by operators after the alloy scraper blade 34 wears out. To improve the reliability of the connection, the bolts can be used with lock nuts, elastic washers, anti-loosening washers, or thread-locking adhesive to reduce the risk of bolt loosening caused by the vibration of the sweeper during operation.

[0050] Reference Figure 5 The top wall of the mounting cavity 211 forms a limiting surface 212. After the cleaner is assembled and installed in front of the conveyor, the compression spring 231 presses the blade 221 against the limiting surface 212, ensuring the blade 221 is in a stable state. After the cleaner is installed, the alloy scraper 3 presses against the working surface of the conveyor belt 4 under the action of the elastic element 23. At this time, there is a clearance between the blade 221 and the limiting surface 212. The clearance ensures that the blade 221 still has a certain rotational margin, allowing the compression spring 231 to stably press the alloy scraper 3 against the conveyor belt 4 through the blade 221.

[0051] Reference Figure 5 , Figure 6The tool holder 21 has openings at both its front and rear ends, forming open ends. The front open end of the tool holder 21 is sealed by a snap-on cap. Specifically, the snap-on cap is inserted into the front open end of the tool holder 21 to seal it. The rear open end of the tool holder 21 has a sealing part 24, which also uses a snap-on cap structure. A sliding through hole 25 is formed between the sealing parts 24. The tool plate 221 passes through the sliding through hole 25. The length of the sliding through hole 25 is greater than the range of motion of the tool plate 221, so that the sliding through hole 25 provides clearance for the swing of the tool plate 221, allowing the tool plate 221 to rotate smoothly within the range of action of the elastic support 2. Elastic sealing pieces 26 are provided on both sides of the tool plate 221. The elastic sealing pieces 26 can be made of rubber, elastic plastic, or other elastically deformable sheets. The width of the elastic sealing piece 26 is greater than the width of the sliding through hole 25, so that the elastic sealing piece 26 can fully cover the sliding through hole 25. One end of the elastic sealing piece 26 is fixedly connected to the blade plate 221 by binding, and the other end can be fixedly connected to the sealing part 24 at one end of the sliding through hole 25 by adhesive.

[0052] During the rotation of the blade 221, the elastic sealing plate 26 can elastically deform with the swing of the blade 221 and continuously block the gap between the blade 221 and the wall of the sliding through hole 25. This reduces the possibility of dust, wet material, mud or fine particles entering the mounting cavity 211 through the sliding through hole 25, and reduces the risk of affecting the reliability of operation due to material accumulation, corrosion or jamming at the compression spring 231, pin shaft and rotating connection of the blade 221.

[0053] The implementation principle of Example 1 is as follows: During installation, the bracket 1 is installed on the frame of the belt conveyor, and the bracket 1 is positioned below the return section of the conveyor belt 4. Multiple elastic support members 2 are installed at intervals along the length direction of the bracket 1, and multiple alloy scrapers 3 are arranged sequentially along the width direction of the conveyor belt 4. The position of the bracket 1 or the elastic support members 2 is adjusted so that the alloy scraper blades 34 of each alloy scraper 3 elastically abut against the working surface of the conveyor belt 4, and adjacent alloy scrapers 3 are staggered along the moving direction of the conveyor belt 4, and the scraping areas of adjacent alloy scrapers 3 at least partially overlap in the width direction of the conveyor belt 4.

[0054] When the conveyor belt 4 is running, its working surface moves relative to the alloy scraper 34. Under the action of the compression spring 231, the alloy scraper 34 continuously abuts against the working surface of the conveyor belt 4, scraping off residual material. Since the scraping areas of two adjacent alloy scrapers 3 overlap in the width direction of the conveyor belt 4, even if residual material is located at the boundary area of ​​adjacent alloy scrapers 3, it can be scraped by one or the other alloy scraper 3, thereby reducing cleaning dead zones. The smooth transition portion 36 at the end of the alloy scraper 3 reduces local stress concentration between the end of the alloy scraper 3 and the conveyor belt 4, reducing the risk of the end of the alloy scraper 3 scratching the conveyor belt 4. Example 2

[0055] Reference Figure 7 , Figure 8 and Figure 9 The difference between this embodiment and embodiment 1 is that a fixing part 5 is provided on the top of the tool holder 21. The fixing part 5 has a strip-shaped through hole 51 that communicates with the mounting cavity 211. The strip-shaped through hole 51 is arranged along the length direction of the tool holder 21. One end of the strip-shaped through hole 51 extends to the port at the rear of the tool holder 21, and the other end extends to the top of the pin. The strip-shaped through hole 51 is arranged opposite to the tool plate 221 inserted into the mounting cavity 211, so that the tool plate 221 can rotate out of the mounting cavity 211 through the strip-shaped through hole 51. At the same time, both limiting grooves 2241 can rotate out of the mounting cavity 211 along with the tool plate 221.

[0056] Reference Figure 9 and Figure 10 Each of the two sidewalls of the strip-shaped through hole 51 is provided with a mounting groove 52. The mounting groove 52 is located on the part of the sidewall of the strip-shaped through hole 51 that is located on the fixing part 5. The two mounting grooves 52 are arranged opposite to each other. Each mounting groove 52 is arranged in a V-shape. The mounting groove 52 is arranged along the length direction of the strip-shaped through hole 51 and passes through the two ends of the fixing part 5 along this direction. The fixing part 5 is provided with a limiting shield 6. In this embodiment, the limiting shield 6 is a shield plate 61. Both ends of the shield plate 61 are V-shaped structures that are adapted to the mounting grooves 52, so that the shield plate 61 can slide into the two mounting grooves 52 from the port side. The shield plate 61 and the mounting grooves 52 are connected by a tight fit, so that the shield plate 61 is fixedly connected to the fixing part 5 after being inserted into the mounting groove 52.

[0057] The length of the baffle plate 61 is greater than the length of the strip-shaped through hole 51. The baffle plate 61 includes a plug section 611 and a blocking section 612. After the baffle plate 61 is installed with the mounting groove 52, the plug section 611 is located in the mounting groove 52, and the blocking section 612 extends from the rear of the tool holder 21. The blocking section 612 of the baffle plate 61 extending out of the tool holder 21 is located directly above the tool plate 221, thereby blocking the part of the tool plate 221 that extends out of the tool holder 21.

[0058] Reference Figure 7 To facilitate the disassembly of the compression spring 231, the sealing portion 24 on the rear opening end of the blade holder 21 needs to be disassembled. Therefore, the sealing portion 24 is configured as a combination of a first part 241 and a second part 242, with a sliding through hole 25 formed by the first part 241 and the second part 242. A corresponding elastic sealing piece 26 is disposed on the first part 241. When the first part 241 separates from the second part 242, one side of the sliding through hole 25 is open, driving the first part 241 to move laterally, causing the first part 241 to detach from the blade plate 221, thus completing the disassembly of the sealing portion 24 from the blade plate 221.

[0059] When replacing or repairing the compression spring 231, the operator can first slide the baffle plate 61 out of the mounting groove 52 by tapping it, so that the strip-shaped through hole 51 is in the open state. Then, the operator drives the blade plate 221 to rotate toward the strip-shaped through hole 51. During this process, the operator can use a push rod to push the compression spring 231 to move in the mounting cavity 211 to adapt to the rotation of the blade plate 221. As the blade plate 221 continues to rotate, when the two limiting grooves 2241 rotate out of the strip-shaped through hole 51 together with the blade plate 221, that is, the compression spring 231 disengages from the limiting grooves 2241. At this time, the limiting grooves 2241 release the restriction state of the compression spring 231, and the operator can push the compression spring 231 out from the rear end of the blade holder 21 to disassemble the original compression spring 231, thereby avoiding the disassembly of the hinge structure between the blade plate 221 and the blade holder 21 and improving the convenience of disassembly in the compressed state.

[0060] When installing the compression spring 231, the compressed spring 231 is slid into the mounting cavity 211 from the rear end of the cutter holder 21. Then, the cutter plate 221 is screwed into the mounting cavity 211 through the strip-shaped through hole 51. While rotating the cutter plate 221, the compression spring 231 is moved so that the compression spring 231 is aligned with the two positioning slots and inserted into the positioning slots. This completes the installation of the compression spring 231. During the replacement of the compression spring 231, it is not necessary to disassemble the cutter plate 221 and the cutter holder 21, which makes it easier for the staff to replace the compression spring 231 and improves the convenience of maintenance of the elastic support 2.

[0061] After the blade 221 is fully screwed into the mounting cavity 211, the baffle 61 is inserted into the mounting groove 52. The baffle 61 blocks the strip-shaped through hole 51, and at the same time, the compression spring 231 can press the blade 221 against the baffle 61. This can improve the sealing of the mounting cavity 211 and ensure that the blade 221 remains stable during the assembly of the cleaner.

[0062] After the cleaner is installed on the frame, the part of the blade 221 that extends out of the blade holder 21 is located in front of the alloy scraper 3, making it easy for the material caught by the alloy scraper 3 to fall onto the blade 221. Therefore, by setting a baffle plate 61 to block the part of the blade 221 that extends out of the blade holder 21, on the one hand, the impact of impurities on the blade 221 can be reduced, so that the compression spring 231 can stably provide the elastic force for the alloy scraper 3 to abut against the conveyor belt 4; on the other hand, the load on the blade 221 can be reduced, and the stability of the contact between the working surface of the alloy scraper 3 and the conveyor belt 4 can be improved.

[0063] 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 P-type alloy cleaner, characterized in that: It includes a bracket (1), multiple elastic support members (2), and multiple alloy scrapers (3); The bracket (1) is used to extend along the width direction of the conveyor belt (4), and a plurality of elastic support members (2) are spaced apart along the length direction of the bracket (1). Each elastic support member (2) is connected to at least one alloy scraper (3). The elastic support member (2) is used to apply an elastic force toward the working surface of the conveyor belt (4) to the corresponding alloy scraper (3) so that the alloy scraper (3) elastically abuts against the working surface of the conveyor belt (4). Multiple alloy scrapers (3) are arranged sequentially along the width direction of the conveyor belt (4), and two adjacent alloy scrapers (3) are staggered along the moving direction of the conveyor belt (4), and the scraping areas of two adjacent alloy scrapers (3) overlap at least partially in the width direction of the conveyor belt (4). Each of the alloy scrapers (3) has a scraping edge (31) for abutting against the conveyor belt (4) and side edges (32) respectively disposed on both sides of the alloy scraper (3) along the width direction of the conveyor belt (4), and a smooth transition portion (36) is formed at the connection between the scraping edge (31) and each of the side edges (32).

2. The P-type alloy cleaner according to claim 1, characterized in that: The alloy scraper (3) includes a substrate (33) and an alloy scraper (34). The alloy scraper (34) is fixedly connected to the substrate (33). The scraping edge (31) is formed on the side of the alloy scraper (34) away from the substrate (33). The smooth transition portion (36) includes a first transition portion (361) disposed on the alloy scraper (34) and a second transition portion (362) disposed on the substrate (33).

3. The P-type alloy cleaner according to claim 2, characterized in that: The elastic support member (2) includes a blade holder (21), a blade holder (22), and an elastic member (23). The blade holder (21) is connected to the bracket (1). One end of the blade holder (22) is rotatably connected to the blade holder (21), and the other end of the blade holder (22) is connected to the base plate (33). The elastic member (23) is disposed between the blade holder (21) and the blade holder (22) and is used to drive the blade holder (22) to rotate toward the working surface of the conveyor belt (4) so ​​that the alloy scraper (34) elastically abuts against the working surface of the conveyor belt (4).

4. The P-type alloy cleaner according to claim 3, characterized in that: The tool holder (22) includes a blade plate (221) and a mounting plate (222). One end of the blade plate (221) is rotatably connected to the tool holder (21), and the mounting plate (222) is connected to the other end of the blade plate (221). The base plate (33) is connected to the mounting plate (222). The mounting plate (222) has a slot (225) and the blade (221) is inserted into the slot (225) so that the mounting plate (222) and the blade (221) are engaged. The blade (221) is provided with a blocking part (223), which is located downstream of the mounting plate (222) along the moving direction of the conveyor belt (4), and the mounting plate (222) abuts against the blocking part (223). The blocking part (223) is used to restrict the mounting plate (222) from moving relative to the blade (221) along the moving direction of the conveyor belt (4).

5. The P-type alloy cleaner according to claim 4, characterized in that: The tool holder (21) is provided with a mounting cavity (211) for inserting the tool plate (221). The tool plate (221) is inserted into the mounting cavity (211) and is rotatably connected to the tool holder (21) by a pin. The inner wall of the mounting cavity (211) forms a limiting surface (212), which is used to restrict the blade (221) from rotating in a direction away from the working surface of the conveyor belt (4); When the alloy scraper (3) elastically abuts against the working surface of the conveyor belt (4), there is a clearance between the blade (221) and the limiting surface (212) so that the elastic element (23) can continuously apply an elastic force to the blade (221).

6. The P-type alloy cleaner according to claim 5, characterized in that: The elastic element (23) includes a compression spring (231), and a spring positioning groove (224) is provided on the blade (221). The compression spring (231) is located in the mounting cavity (211), with one end of the compression spring (231) positioned in the spring positioning groove (224) and the other end abutting against the inner wall of the mounting cavity (211).

7. The P-type alloy cleaner according to claim 6, characterized in that: The spring positioning groove (224) includes two spaced limiting grooves (2241), and the distance between the two limiting grooves (2241) is adapted to the outer diameter of the compression spring (231) so that one end of the compression spring (231) can be simultaneously embedded in the two limiting grooves (2241).

8. The P-type alloy cleaner according to claim 5, characterized in that: The mounting cavity (211) has an opening end through which the blade plate (221) passes. The blade holder (21) is provided with a sealing part (24) at the opening end. The sealing part (24) is provided with a sliding through hole (25) for the blade plate (221) to rotate. The blade (221) is provided with elastic sealing pieces (26) on both sides, which are connected to the sealing part (24). The elastic sealing pieces (26) are used to elastically deform with the rotation of the blade (221) and block the gap between the blade (221) and the wall of the sliding through hole (25).

9. The P-type alloy cleaner according to claim 6, characterized in that: The side wall of the blade holder (21) is provided with a strip-shaped through hole (51) communicating with the mounting cavity (211). A limit shield (6) is detachably provided on the blade holder (21). The limit shield (6) is used to restrict the blade plate (221) from rotating toward the strip-shaped through hole (51). When the limiting shield (6) is removed from the knife holder (21), the knife plate (221) can rotate relative to the knife holder (21) to the position where the spring positioning groove (224) is exposed through the strip-shaped through hole (51).

10. The P-type alloy cleaner according to claim 9, characterized in that: The strip-shaped through hole (51) has mounting grooves (52) on both sides of its opposite side walls. The limiting shield (6) includes a shield (61), and the two ends of the shield (61) are respectively inserted into the two mounting grooves (52). The shielding plate (61) includes a plug section (611) and a shielding section (612) extending from the plug section (611) toward the substrate (33), the shielding section (612) being located above the blade (221) and used to shield at least a portion of the strip-shaped through hole (51).

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