An automatic material leakage cleaning mechanism for a conveyor belt

Abstract

This invention discloses an automatic material leakage cleaning mechanism for a conveyor belt, comprising a lower sealing plate, a guide groove, a cleaning trolley, and a drive mechanism. The lower sealing plate is fixed to two columns on both sides below the conveyor belt. The guide groove is arranged parallel to the inner side of the lower sealing plate. The cleaning trolley includes a triangular connecting plate, a traveling wheel axle, and a scraper. The triangular connecting plate is fixed parallel to both sides of the traveling wheel axle. The traveling wheel axle extends out of the triangular connecting plate and is slidably connected in the guide groove. The scraper is vertically arranged on the two triangular connecting plates. The upper end of the triangular connecting plate is provided with a mounting hole. Several cleaning trolleys are slidably connected in the guide groove, and adjacent cleaning trolleys are connected by a first connecting plate and a second connecting plate. The drive mechanism is used to provide force to the mounting hole. The automatic material leakage cleaning device for a conveyor belt provided by this invention can be adapted to different conveyor belt specifications, and its scraper can automatically rotate, performing scraping and cleaning work only during forward movement, greatly reducing the load on the scraper.

Description

Technical Field

[0001] This invention relates to the field of material conveying technology, and in particular to an automatic cleaning mechanism for enclosed leakage of material in a belt conveyor. Background Technology

[0002] Implementing ultra-low emission retrofitting in the steel industry is an effective means of controlling environmental pollution and an essential path to achieving green transformation. During belt conveyor transport and transfer, enclosing the belt is the primary method for controlling dust emissions from materials into the surrounding environment. However, the difficulty of cleaning up spilled material increases after the belt is enclosed. This is because the belt rubber adheres strongly to powder and smaller particles in the material, and the material itself has adhesive properties. Although various types of scraping and cleaning devices are installed, it is difficult to completely remove all material. Some material adheres to the belt surface and travels to the lower layers. Through the squeezing, rotation, and vibration of the lower idler rollers, it falls off along the line, causing material accumulation on the ground. Fine dust will then be dispersed and settle on the ground. The amount of spilled material and dust itself that needs cleaning is large, and the difficulty of cleaning after enclosure increases significantly.

[0003] Installing a scraper under the belt conveyor to scrape leaking material into the hopper or an easily cleanable location is one solution. However, existing scraper devices mainly include chain scrapers and screw propellers. Chain scrapers, when in use, are prone to material sticking to the sprockets when the material is sticky or contains moisture, causing tooth skipping. Since each scraper is fixed to two coaxially rotating chains, tooth skipping damages the scraper and is difficult to repair. Screw propellers, on the other hand, often have a width that doesn't match the width of the belt conveyor. Furthermore, regardless of the type, the scraper moves on the base plate, resulting in high frictional resistance. They also have working and return strokes, high load, and limited working length. Additionally, the distance between the lower belt rollers and the ground is small, and some belt conveyors have angle variations. Current scraper devices are limited by site height, width, length, or angle, making them unusable or ineffective. This invention provides a scraper device that is the same width, length, and angle as the belt conveyor, with the scraper moving forward along a track and reversing back, without contacting the ground. Summary of the Invention

[0004] To overcome the shortcomings of the prior art, the present invention provides an automatic cleaning mechanism for enclosed material leakage of belt conveyors, which can be adapted to different belt conveyor specifications. Its scraper can be automatically flipped and only performs scraping and cleaning work during the forward movement. When it moves backward, it does not come into contact with the ground, which greatly reduces the load on the scraper.

[0005] This invention is achieved through the following technical solutions:

[0006] An automatic material sealing and cleaning mechanism for a conveyor belt includes a lower sealing plate, a guide groove, a cleaning trolley, and a drive mechanism. The lower sealing plate is fixed to two columns on both sides below the conveyor belt to seal off the lower area of ​​the conveyor belt. The guide groove is arranged parallel to the inner side of the lower sealing plate. The cleaning trolley includes triangular connecting plates, a traveling wheel axle, and a scraper. The triangular connecting plates are fixed parallel to both sides of the traveling wheel axle. The traveling wheel axle extends out of the triangular connecting plates and is slidably connected in the guide groove. The scraper is vertically arranged on the front edges of the two triangular connecting plates. The upper end of the corner connecting plate is provided with a mounting hole; several cleaning trolleys are slidably connected in the guide groove, and adjacent cleaning trolleys are connected by a first connecting plate and a second connecting plate. The first connecting plate is hinged to both sides of the walking wheel axle; the second connecting plate is hinged in the mounting hole; the drive mechanism is used to provide force to the mounting hole, pulling the cleaning trolley to move back and forth; in this technical solution, the space below the belt conveyor is sealed by the lower sealing plate, which can effectively prevent pollutants below the belt conveyor from overflowing, effectively ensuring the cleanliness of the construction environment, eliminating the need for manual cleaning space, and achieving full enclosure of the belt conveyor, maximizing safety and suppressing dust; several cleaning trolleys are connected by the walking wheel axle, the triangular connecting plate, the first connecting plate, and the second connecting plate to form a movable parallelogram linkage mechanism, which can adapt to belt conveyors arranged at different angles; the walking wheel axle is slidably connected in the guide groove, which can ensure the stability of the cleaning trolley operation, preventing bumps due to chain skipping, and effectively avoiding the collision between the traditional chain scraper and the bottom surface; the drive mechanism provides forward or backward force to the mounting hole. The cleaning trolley is driven to reciprocate back and forth in the guide groove. As the cleaning trolley moves forward, the drive mechanism generates a torsional force on the triangular connecting plate because the mounting hole is above the axle of the traveling wheel. This causes the scraper on the triangular connecting plate to move perpendicular to the bottom surface, scraping away impurities from the bottom surface of the conveyor belt. As the cleaning trolley moves backward, the torsional force generated by the drive mechanism on the triangular connecting plate causes the scraper to tilt towards the bottom surface, increasing the gap between the scraper and the bottom surface, and preventing it from scraping back impurities from the bottom surface.

[0007] Preferably, at least one of the cleaning trolleys is provided with a limiting shaft, which is fixed to the rear end of the triangular connecting plate, and both ends of the limiting shaft extend into the guide groove; the guide groove is provided with a shift fork reversing device for moving the limiting shaft, the shift fork reversing device including an upper shift fork, a lower shift fork, an upper guide plate, a lower guide plate, a spring, and a baffle; the upper shift fork is hinged to both ends of the upper guide plate, and the upper end of the upper shift fork is hinged to the upper edge of the guide groove; the lower shift fork is hinged to both ends of the lower guide plate, and the lower end of the lower shift fork is hinged to the lower edge of the guide groove; the baffle is fixed on the guide groove to limit the rotation angle of the upper or lower shift fork; springs are provided between the upper and lower shift forks and the guide groove to provide restoring force; in this technical solution, the upper guide plate, the guide groove, and the upper shift fork form a parallelogram linkage structure. During the backward movement of the cleaning trolley, the baffle located on the upper edge of the guide groove restricts the rotation of the upper fork, allowing the upper guide plate to abut against the limiting shaft downwards, forcing the triangular connecting plate to flip, causing the scraper to tilt and detach from the bottom surface; the lower guide plate, guide groove, and lower fork form a parallelogram linkage structure, with the lower guide plate directly below the upper guide plate. During the forward movement of the cleaning trolley, the baffle located on the lower edge of the guide groove restricts the rotation of the lower fork, allowing the lower guide plate to support the limiting shaft upwards, while the baffle located on the upper edge of the guide groove can limit the upper fork after it rotates counterclockwise by a certain angle, preventing it from rotating further, thus causing the limiting shaft to move between the upper and lower guide plates; the triangular connecting plate is forced to flip, making the scraper perpendicular to the bottom surface, scraping impurities forward.

[0008] Preferably, the upper shift fork has an upper wedge-shaped portion at the contact edge with the limiting shaft; the lower shift fork has a lower wedge-shaped portion at the contact edge with the limiting shaft; in this technical solution, the upper and lower wedge-shaped portions allow the limiting shaft to enter the shift fork reversing mechanism more smoothly.

[0009] Preferably, the guide groove is provided with four hinge plates, and the upper and lower shift forks are hinged to the hinge plates; in this technical solution, the four hinge plates facilitate the installation of the upper and lower shift forks.

[0010] Preferably, the two ends of the walking wheel axle are provided with track wheels, and the track wheels are adapted to the guide groove. In this technical solution, the track wheels are installed at both ends of the walking wheel by bearings, which can reduce friction, reduce the moving load of the cleaning trolley, reduce the energy consumption of the equipment, and the track wheels are provided with positioning bosses, which can make the cleaning trolley move in a directional manner along the guide groove without deviation, thus ensuring the reliability of operation.

[0011] Preferably, a mounting sleeve is fitted onto the walking wheel axle, and the mounting sleeve is placed between two triangular connecting plates; the scraper is detachably mounted on the mounting sleeve, and the inner side of the scraper abuts against the front edge of the triangular connecting plate; in this technical solution, the mounting sleeve facilitates the installation of the scraper, and the mounting sleeve is provided with bolt holes, and the scraper is fixed to the mounting sleeve by bolts, with its inner side abutting against the front edge of the triangular connecting plate.

[0012] Preferably, the guide groove includes an upper guide rail and a lower guide rail arranged in parallel, the upper guide rail and the lower guide rail being fixed on a column below the belt conveyor; the traveling wheel axle is slidably connected between the upper guide rail and the lower guide rail; in this technical solution, the upper guide rail and the lower guide rail can be made of channel steel, which is easy to obtain and has high structural strength.

[0013] Preferably, a traction shaft is installed in the triangular mounting hole, and a triangular connecting plate extends from the end of the traction shaft; the guide groove is provided with an opening groove for the traction shaft to pass through; in this technical solution, the traction shaft can extend the force point outward, which facilitates the arrangement of the drive mechanism.

[0014] More preferably, the drive mechanism includes a motor, a drive sprocket, driven sprockets, and a chain; the drive sprocket and driven sprockets are arranged in a triangular pattern, with the drive sprocket at the top and the two driven sprockets at the same level and below the drive sprocket; the chain is connected to the drive sprocket via the two driven sprockets, and both ends of the chain are fixed to the chain sleeves at both ends of the traction shaft; the motor provides driving force to the drive sprocket; in this technical solution, the drive mechanism adopts a flexible chain transmission method, which can be easily arranged even at bending points, and the chain is connected to the drive sprocket via the two driven sprockets, so that the chain will not fall off the sprocket, ensuring the stability of the operation, and the working stroke and return idle stroke of the cleaning trolley are controlled by a single-layer chain, thus achieving a lower height and lighter weight.

[0015] More preferably, the second connecting plate is provided with a support plate; in this technical solution, the support plate is used to support the chain so that the chain is kept in close contact with the connecting plate, which facilitates the transmission of the chain.

[0016] The beneficial effects of this invention are as follows: 1. This mechanism has only one layer of unidirectional reciprocating motion, thus its height dimension is small, its applicability is wider, and it can be directly installed at the bottom of the belt conveyor; 2. The length of this mechanism is formed by the interconnection of a connecting plate and multiple sets of cleaning trolleys, and the axles of the cleaning trolleys roll between the guide grooves, resulting in low resistance; 3. The scraper of this mechanism is suspended and does not contact the bottom plate, resulting in low working resistance; 4. This mechanism can be bent to meet the cleaning requirements of belt conveyors with both flat and inclined sections; 5. This mechanism solves the problem of difficult cleaning and leakage of materials after the belt conveyor is closed, and makes the closure more compact and tight, while eliminating the safety hazards of frequent accidents during manual cleaning of belt conveyors. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the layout structure of an automatic material leakage cleaning mechanism for a belt conveyor as described in Embodiment 1;

[0018] Figure 2 This is a schematic diagram of the arrangement structure of the lower sealing plate and guide groove described in Embodiment 1;

[0019] Figure 3 This is a schematic diagram of the guide groove described in Embodiment 1;

[0020] Figure 4 This is a schematic diagram of the drive mechanism described in Embodiment 1;

[0021] Figure 5 This is a schematic diagram of the arrangement of the cleaning trolley and the drive mechanism described in Embodiment 1;

[0022] Figure 6 This is a schematic diagram of the arrangement structure of the upper limit axis of the cleaning trolley described in Embodiment 1;

[0023] Figure 7 This is a schematic diagram of the arrangement structure of the cleaning trolley and the shift fork reversing device described in Embodiment 1;

[0024] Figure 8 This is a schematic diagram of the fork commutator described in Embodiment 1;

[0025] Figure 9 This is a schematic diagram of the structure of the shift fork reversing device in the first embodiment, in the state where the cleaning trolley is not in contact with the device.

[0026] Figure 10 This is a schematic diagram of the structure of the cleaning trolley in contact with the shift fork reversing device during its forward movement as described in Embodiment 1.

[0027] Figure 11 This is a schematic diagram of the structure of the cleaning trolley in contact with the shift fork reversing mechanism during the backward movement of the trolley as described in Embodiment 1.

[0028] In the diagram: 1. Column; 11. Sealing plate; 2. Guide groove; 21. Upper guide rail; 211. Opening groove; 22. Lower guide rail; 3. Cleaning trolley; 31. Triangular connecting plate; 311. Mounting hole; 32. Traveling wheel axle; 321. Mounting sleeve; 322. Track wheel; 33. Scraper; 34. Limiting shaft; 341. Limiting wheel; 35. Traction shaft; 351. Chain sleeve; 4. Shift fork reversing device; 41. Upper shift fork; 411. Upper wedge; 42. Lower shift fork; 421. Lower wedge; 43. Upper guide plate; 44. Lower guide plate; 5. First connecting plate; 6. Second connecting plate; 61. Support plate; 7. Hinge plate; 71. Baffle; 72. Spring; 8. Drive mechanism; 81. Motor; 82. Drive sprocket; 83. Driven sprocket; 84. Chain; 85. Drive shaft. Detailed Implementation

[0029] The technical solutions of various embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] Example 1

[0031] like Figures 1-11As shown, an automatic material leakage cleaning mechanism for a conveyor belt includes a lower sealing plate 11, a guide groove 2, a cleaning trolley 3, and a drive mechanism 8. The lower sealing plate 11 is welded and fixed to the columns 1 on both sides below the conveyor belt to seal the lower area of ​​the conveyor belt. The guide groove 2 is arranged parallel to the inner side of the lower sealing plate 11. The cleaning trolley 3 includes a triangular connecting plate 31, a traveling wheel axle 32, and a scraper 33. The triangular connecting plate 31 is fixed parallel to both sides of the traveling wheel axle 32. The traveling wheel axle 32 extends out of the triangular connecting plate 31 and is slidably connected in the guide groove 2. The scraper 33 is vertically arranged on the front edge of the two triangular connecting plates 31. The upper end of 31 is provided with a mounting hole 311; a plurality of cleaning trolleys 3 are slidably connected in the guide groove 2, and adjacent cleaning trolleys 3 are connected by a first connecting plate 5 and a second connecting plate 6. The first connecting plate 5 is hinged to both sides of the traveling wheel axle 32; the second connecting plate 6 is hinged in the mounting hole 311; the driving mechanism 8 is used to provide force to the mounting hole 311 to pull the cleaning trolleys to move back and forth; wherein, the space below the belt conveyor is closed by the lower sealing plate 11, which can effectively prevent pollutants below the belt conveyor from overflowing and effectively ensure the cleanliness of the construction environment; the plurality of cleaning trolleys 3 are connected by the traveling wheel axle 32, the triangular connecting plate 31, the first connecting plate 5 and the second connecting plate 6. The second connecting plate 6 forms a movable parallelogram linkage mechanism, which can adapt to belt conveyors arranged at different angles; the traveling wheel axle 32 is slidably connected in the guide groove 2, which can ensure the stability of the cleaning trolley 3 during operation and prevent bumps caused by chain skipping, effectively avoiding the collision between the traditional chain scraper and the bottom surface; the drive mechanism 8 provides a forward or backward force to the mounting hole 311, driving the cleaning trolley 3 to reciprocate in the guide groove 2. During the forward movement of the cleaning trolley 3, since the mounting hole 311 is above the traveling wheel axle 32, the drive mechanism will generate a forward torsional force on the triangular connecting plate 31, so that the triangular connecting plate 31 is arranged in a certain position. The scraper 33 on the angle connecting plate 31 can be perpendicular to the bottom surface and move to scrape the impurities on the bottom surface of the conveyor belt forward. The gap between the scraper 33 and the bottom surface is 2-4mm, and they do not contact each other. The running resistance is small, the working load is small, and the low power can achieve a long scraping distance. When the cleaning trolley 3 moves backward, the drive mechanism 8 will generate a backward torsional force on the angle connecting plate 31, so that the scraper 33 tilts to the bottom surface. At this time, the gap between the scraper 33 and the bottom surface increases, and it will not scrape the impurities on the bottom surface back. Finally, the scraper 33 on the cleaning trolley 3 only performs a forward scraping action on the impurities on the bottom surface, realizing the automatic cleaning of the closed leakage of the conveyor belt.

[0032] Preferably, the guide groove 2 includes an upper guide rail 21 and a lower guide rail 22 arranged in parallel, the upper guide rail 21 and the lower guide rail 22 being fixed on the column 1 below the belt conveyor; the traveling wheel axle 32 is slidably connected between the upper guide rail 21 and the lower guide rail 22, the upper guide rail 21 and the lower guide rail 22 can be made of channel steel, which is easy to obtain and has high structural strength; at least one of the cleaning trolleys 3 is provided with a limiting shaft 34, the limiting shaft 34 is fixed to the rear end of the triangular connecting plate 31, the two ends of the limiting shaft 34 extend into the guide groove 2, and the two ends of the limiting shaft 34 are provided with limiting wheels 341; the guide groove 2 is provided with a shift fork reversing device 4 for moving the limiting shaft 34, the shift fork reversing device 4 including an upper shift fork 41, a lower shift fork 42, and an upper guide plate. 43. Lower guide plate 44, spring 72, and baffle 71; The upper guide plate 43 has upper forks 41 hinged at both ends, and the upper ends of the two upper forks 41 are hinged to the upper guide rail 21 of the guide groove 2; the lower guide plate 44 has lower forks 42 hinged at both ends, and the lower ends of the lower forks 42 are hinged to the lower guide rail 22 of the guide groove 2; the baffle is fixed on the guide groove to limit the rotation angle of the upper or lower forks; springs are provided between the upper and lower forks and the guide groove to provide restoring force; specifically, four hinge plates 7 are fixed on the upper guide rail 21 and lower guide rail 22 of the guide groove 2, the upper forks 41 and lower forks 42 are hinged on the hinge plates 7, the baffle 71 is welded to the hinge plates, and the spring 72 is connected to the hinges. Between plate 7 and the upper fork 41 and lower fork 42, the four hinged plates 7 facilitate the installation of the upper fork 41, lower fork 42, baffle 71, and spring 72; the upper guide plate 43, upper guide rail 21, and upper fork 41 form a parallelogram linkage structure; during the backward movement of the cleaning trolley, the baffle 71 located at the upper edge of the guide groove restricts the rotation of the upper fork 41, allowing the upper guide plate 43 to abut downward against the limiting shaft 34, forcing the triangular connecting plate 31 to flip, causing the scraper 33 to tilt and detach from the bottom surface; the lower guide plate 44, lower guide rail 22, and lower fork 42 form a parallelogram linkage structure, with the lower guide plate 44 located directly below the upper guide plate 43. During the forward movement of the cleaning trolley, the baffle 71 located at the lower edge of the guide groove... The baffle 71 restricts the rotation of the lower shift fork 42, allowing the lower guide plate 44 to support the limiting shaft 34 upwards. The baffle 71, located on the upper edge of the guide groove, can limit the upper shift fork 41 after it rotates counterclockwise by a certain angle, preventing it from rotating further, thus allowing the limiting shaft 34 to move between the upper guide plate 43 and the lower guide plate 44. The forced triangular connecting plate 31 is flipped so that the scraper 33 is perpendicular to the bottom surface, scraping impurities forward. The contact edge between the upper shift fork 41 and the limiting shaft 34 is provided with an upper wedge-shaped part 411; the contact edge between the lower shift fork 42 and the limiting shaft 34 is provided with a lower wedge-shaped part 421. The upper wedge-shaped part 411 and the lower wedge-shaped part 421 allow the limiting shaft 34 to enter the shift fork reversing device 4 more smoothly.The walking wheel axle 32 is provided with track wheels 322 at both ends. The track wheels 322 are adapted to the guide groove 2. The track wheels 322 are mounted on both ends of the walking wheel axle 32 via bearings, which can reduce friction, reduce the moving load of the cleaning trolley, and reduce the energy consumption of the equipment. In addition, the track wheels 322 are provided with positioning bosses, which can make the cleaning trolley 3 move along the guide groove 2 in a directional manner without deviation, ensuring the reliability of operation. An installation sleeve 321 is sleeved on the walking wheel axle 32, and the installation sleeve 321 is placed between two triangular connecting plates 31. The sleeve 321 is provided with bolt holes, and the scraper 33 is fixed to the mounting sleeve 321 by bolts, with its inner side abutting against the front edge of the triangular connecting plate 31; a traction shaft 35 is installed in the mounting hole 311 of the triangular connecting plate 31, and the end of the traction shaft 35 extends out of the triangular connecting plate; the upper guide rail 21 is provided with an opening slot 211 for the traction shaft to pass through, and the traction shaft 35 can extend the force point outward to facilitate the arrangement of the drive mechanism 8; the drive mechanism 8 includes a motor 81, a driving sprocket 82, a driven sprocket 83, and a chain 84; The motor 81 can be a servo motor. As a mature technology, servo motors can precisely control the rotation angle, thereby controlling the movement of the cleaning trolley. The driving sprocket 82 and driven sprocket 83 are arranged in a triangular pattern on the mounting base. The two mounting bases are fixed parallel to each other on the two upper guide rails 21. The driving sprocket 82 is fixedly connected to each other via a transmission shaft 85. The driving sprocket 82 is located at the upper end, and the two driven sprockets 83 are at the same level and located below the driving sprocket 82. The chain 84 is connected to the driving sprocket 82 via the two driven sprockets 83. Both ends of 4 are fixed to the chain sleeves 351 at both ends of the traction shaft 35 by pins; the motor 81 is used to provide driving force to the drive sprocket 82; the drive mechanism 8 adopts a flexible transmission method of chain 84, which can be easily arranged in the bending part, and the chain 84 is connected to the drive sprocket by two driven sprockets, so that the chain will not fall off the sprocket and ensure the stability of the operation; the second connecting plate 6 is provided with a support plate 61; the support plate 61 is used to support the chain so that the chain 84 is kept in close contact with the connecting plate, which facilitates the transmission of the chain 84.

[0033] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, and not to limit them; although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the technical solutions of the embodiments of the present invention.

Claims

1. A belt machine closed material leakage automatic cleaning mechanism, characterized in that, The utility model provides a belt cleaning device, including lower sealing plate, guide groove, cleaning trolley and drive mechanism, lower sealing plate is fixed in the column of two sides below the belt conveyor, is used for closing the area below the belt conveyor, guide groove is arranged in the inside of lower sealing plate in parallel, cleaning trolley includes triangular connecting plate, walking wheel axle and scraper, triangular connecting plate is fixed in the both sides of walking wheel axle in parallel, walking wheel axle extends out triangular connecting plate and is connected in guide groove slidingly, scraper is arranged in the front edge of two triangular connecting plates vertically, the upper end of triangular connecting plate is equipped with mounting hole, a plurality of cleaning trolleys are connected in guide groove slidingly, and the adjacent cleaning trolleys are connected through first connecting plate and second connecting plate, first connecting plate is hinged in the both sides of walking wheel axle, second connecting plate is connected and is hinged in mounting hole, drive mechanism is used to provide acting force to mounting hole, and the cleaning trolley is pulled and moves back and forth, at least one cleaning trolley is equipped with limiting shaft, limiting shaft is fixed in the rear end of triangular connecting plate, and the both ends of limiting shaft extend to guide groove, guide groove is equipped with shift fork reverser that shifts limiting shaft, and the shift fork reverser includes upper shift fork, lower shift fork, upper guide plate, lower guide plate, spring and baffle, the both ends of upper guide plate are hinged with upper shift fork, and the upper end of upper shift fork is hinged on the upper edge of guide groove, the both ends of lower guide plate are hinged with lower shift fork, and the lower end of lower shift fork is hinged on the lower edge of guide groove, baffle is fixed on guide groove and is used to limit the rotation angle of upper shift fork or lower shift fork, and spring is arranged between upper shift fork and lower shift fork and guide groove and is used to provide restoring force.

2. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The contact edge of the upper shift fork and the limiting shaft is provided with an upper wedge part.

3. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The guide groove is provided with four hinge plates, and the upper shift fork and the lower shift fork are hinged on the hinge plates.

4. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The walking wheel axle is provided with track wheels at both ends, and the track wheels are matched with the guide groove.

5. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The walking wheel axle is sleeved with a mounting sleeve, and the mounting sleeve is arranged between the two triangular connecting plates.

6. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The scraper is detachably mounted on the mounting sleeve, and the inner side edge of the scraper abuts against the front edge of the triangular connecting plate.

7. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 1, characterized in that, The guide groove includes parallelly arranged upper rails and lower rails, and the upper rails and the lower rails are fixed on the columns below the belt conveyor.

8. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 7, characterized in that, The walking wheel axle is slidingly connected between the upper rails and the lower rails.

9. The material leakage automatic cleaning mechanism of the belt conveyor according to claim 8, characterized in that, The traction shaft is mounted in the mounting hole of the triangular connecting plate, and the end of the traction shaft extends out of the triangular connecting plate. The drive mechanism includes a motor, a driving sprocket, a driven sprocket, and a chain. The second connecting plate is provided with a supporting plate. The second connecting plate is provided with a supporting plate.

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