Distributed scattered coal cleaning device for coal conveying trestle

Abstract

The invention discloses a distributed scattered coal cleaning device for a coal conveying trestle, belongs to the technical field of scattered coal cleaning, and aims to solve the problems that scattered coal is accumulated on the two sides of a belt conveyor and the edge of a trestle channel for a long time, an inspection channel is occupied, and normal inspection of operation and maintenance personnel and equipment maintenance are affected. The coal conveying trestle comprises a coal conveying trestle body and a belt conveyor installed in the coal conveying trestle body, material collecting plates are fixedly installed on the two sides of the belt conveyor, a bidirectional driving piece is arranged on one side of each material collecting plate, two guide bases are arranged on the surface of each bidirectional driving piece and are both in sliding connection with the corresponding material collecting plate, and a cleaning frame is arranged on one side of each guide base. According to the cleaning device, each section of the belt conveyor is provided with an independent cleaning unit, the cleaning device is matched with a long-distance trestle, the double cleaning frames are oppositely folded from the two ends of the material collecting plate, large-area coal and scattered coal particles at corners can be cleaned, and channel blockage is prevented.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of coal scattering cleaning, in particular to a distributed coal scattering cleaning device for a coal conveying trestle. BACKGROUND

[0002] In the industrial fields of thermal power plants, coal mines, ports and wharfs, the coal conveying trestle is the core infrastructure for realizing long-distance and continuous coal conveying. The belt conveyor configured in the coal conveying trestle becomes the key equipment for coal transfer due to its advantages of large conveying capacity, high efficiency and low energy consumption.

[0003] The current distributed coal scattering cleaning device for the coal conveying trestle. In the actual operation process of the belt conveyor, the coal is easily scattered on both sides of the belt conveyor due to the influence of multiple factors such as equipment structure characteristics, material physical properties and working condition fluctuations. The scattered coal is long-term accumulated on both sides of the belt conveyor and the edge of the trestle passageway, which not only occupies the inspection passageway and affects the normal inspection and equipment maintenance of the operation and maintenance personnel, but also causes resource waste due to a large amount of scattered coal, and relies on manual inspection and manual cleaning, which not only has high labor intensity and low cleaning efficiency, but also easily forms a cleaning blind area, resulting in continuous accumulation of coal.

[0004] In view of the above problems, a distributed coal scattering cleaning device for a coal conveying trestle is provided. SUMMARY

[0005] The purpose of the present application is to provide a distributed coal scattering cleaning device for a coal conveying trestle. The device is used to solve the problem of long-term accumulation of scattered coal on both sides of the belt conveyor and the edge of the trestle passageway, which not only occupies the inspection passageway, but also affects the normal inspection and equipment maintenance of the operation and maintenance personnel.

[0006] To achieve the above purpose, the present application provides the following technical scheme: A distributed coal scattering cleaning device for a coal conveying trestle, comprising a coal conveying trestle body and a belt conveyor installed inside the coal conveying trestle body, two sides of the belt conveyor are fixedly installed with a material collecting plate, one side of the material collecting plate is provided with a bidirectional driving piece, the surface of the bidirectional driving piece is provided with two guide seats, and the two guide seats are both in sliding connection with the material collecting plate, one side of the guide seat is provided with a cleaning frame, and the cleaning frame is in sliding connection with the material collecting plate, one side of the cleaning frame is fixedly installed with a clamping frame, the inside of the cleaning frame is provided with a cleaning piece, one side of the material collecting plate is fixedly installed with a supporting frame, two sides of the supporting frame are fixedly installed with a visual sensor, the visual sensor is electrically connected with the bidirectional driving piece through a controller, one end of the supporting frame is provided with a lifting piece, one end of the lifting piece is provided with a connecting seat, and the two clamping frames are both in sliding connection with the connecting seat.

[0007] Further, the two ends of the material collecting plate are slidingly clamped with a collecting box. The bidirectional driving member comprises a first motor and a bidirectional screw rod fixedly installed at the output end of the first motor, the bidirectional screw rod is rotationally connected with the aggregate plate, corrugated pipes are installed on both sides of the guide seat, and one end of each of the two corrugated pipes is fixedly connected with the first motor and the aggregate plate.

[0008] Further, a threaded block is fixedly installed on one side of the guide seat, the threaded block is threadedly connected with the bidirectional screw rod, the threaded block is slidingly connected with the aggregate plate, a vertical groove is formed in the guide seat, a sliding rod is fixedly installed in the vertical groove, and an arc-shaped groove is also formed in the guide seat and communicates with the vertical groove.

[0009] Further, a cylinder is fixedly installed on one side of the cleaning frame, and the cylinder is slidingly connected with the vertical groove and the sliding rod, a limiting rod is fixedly installed in the cleaning frame, a stopper is fixedly installed at one end of the limiting rod, and rollers are rotationally connected to both sides of the cleaning frame and are in contact with the guide seat.

[0010] Further, a sliding slot is formed in one side of the clamping frame.

[0011] Further, the cleaning member comprises an electromagnet and a scraper plate slidingly connected to the surface of the limiting rod, the electromagnet is fixedly connected with the cleaning frame, the scraper plate is slidingly connected with the cleaning frame, a magnet block is installed on one side of the scraper plate and is in contact with the electromagnet.

[0012] Further, the lifting member comprises a second motor and a threaded rod fixed at the output end of the second motor, the threaded rod is rotationally connected with the support frame, a protective cylinder is arranged on the outer wall of the threaded rod and is fixedly connected with the support frame.

[0013] Further, two guide grooves are formed in the protective cylinder.

[0014] Further, the connecting seat comprises a threaded sleeve and a fixed block fixed at one end of the threaded sleeve, the threaded sleeve is threadedly connected with the threaded rod and is slidingly connected with the protective cylinder, rotating columns are rotationally connected to both ends of the fixed block and are in contact with the sliding slot.

[0015] Further, sliding blocks are fixedly installed on both sides of the threaded sleeve and are slidingly connected with the guide grooves.

[0016] Compared with the prior art, the application has the following beneficial effects: 1. Each belt conveyor is equipped with an independent cleaning unit, which is suitable for long-distance trestles, and the two cleaning frames are oppositely folded from both ends of the aggregate plate, so that large-area coal and scattered coal particles can be cleaned, and the passage is prevented from being blocked.

[0017] 2. The visual sensor monitors the coal scattering amount, and only triggers cleaning when the threshold value is exceeded, so that only the sensor works in the initial state, and energy waste caused by device idling is avoided.

[0018] 3. By lifting the return structure, the swept coal material is directly transported back to the main conveying process of the belt conveyor, realizing the closed-loop recovery of coal material, especially suitable for power plants, coal mines and other scenes with high utilization rate of coal resources, which can significantly reduce the cost of raw material loss in the long run.

[0019] 4. The clean frame self-cleaning design is matched to speed up the efficiency of coal falling into the belt conveyor, and can prevent coal caking and residue, avoiding secondary waste of resources due to frame adhesion. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 It is a schematic diagram of the overall structure of the present application; Figure 2 It is a schematic diagram of the belt conveyor structure of the present application; Figure 3 It is a schematic diagram of the aggregate plate structure of the present application; Figure 4 It is a schematic diagram of the Figure 3 structure in A of the present application; Figure 5 It is a schematic diagram of the guide seat structure of the present application; Figure 6 It is a schematic diagram of the clamping frame structure of the present application; Figure 7 It is a schematic diagram of the Figure 6 structure in B of the present application; Figure 8 It is a schematic diagram of the scraper plate structure of the present application; Figure 9 It is a schematic diagram of the lifting piece structure of the present application; Figure 10 It is a schematic diagram of the Figure 9 structure in C of the present application; Figure 11 It is a schematic diagram of the Figure 9 structure in D of the present application; Figure 12 It is a schematic diagram of the Figure 2 structure in E of the present application.

[0021] As shown in the figure, 1 is a coal conveying trestle body; 2 is a belt conveyor; 3 is a material collecting plate; 31 is a collecting box; 4 is a bidirectional driving part; 41 is a first motor; 42 is a bidirectional screw; 43 is a bellows; 5 is a guide seat; 51 is a threaded block; 52 is a vertical groove; 53 is a sliding rod; 54 is an arc-shaped groove; 6 is a cleaning frame; 61 is a cylinder; 62 is a limiting rod; 63 is a stop block; 64 is a roller; 7 is a clamping frame; 71 is a sliding groove; 8 is a cleaning part; 81 is an electromagnet; 82 is a scraper plate; 83 is a magnet block; 9 is a support frame; 10 is a visual sensor; 20 is a lifting part; 201 is a second motor; 202 is a threaded rod; 203 is a protection cylinder; 204 is a guide groove; 30 is a connecting seat; 301 is a threaded sleeve; 302 is a fixed block; 303 is a rotating column; 304 is a sliding block. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] In order to solve the technical problem that the scattered coal is long-term accumulated on both sides of the belt conveyor 2 and the edge of the trestle passage, not only occupies the inspection passage, but also affects the normal inspection and equipment maintenance of the operation and maintenance personnel, such as Figures 1-12 As shown in the figure, the following preferred technical solutions are provided: As shown in the figure, the following preferred technical solutions are provided: Figures 1-2 As shown in the figure, a distributed coal scattering cleaning device for a coal conveying trestle includes a coal conveying trestle body 1 and a belt conveyor 2 installed inside the coal conveying trestle body 1. The coal conveying trestle body 1 and the belt conveyor 2 are both provided with several sections, so that a long-distance conveying system is formed by connecting several coal conveying trestle bodies 1 and belt conveyors 2. A cleaning unit is independently configured on both sides of each section of the belt conveyor 2 to realize distributed segmented control. The belt conveyor 2 is fixedly installed with a material collecting plate 3 on both sides. The material collecting plate 3 can limit the scattered coal and coal particles during the operation of the belt conveyor 2 in a fixed area, avoiding the spread of coal to the trestle passage and equipment support, reducing the secondary scattering range of coal, providing an operation target area for subsequent accurate cleaning, and solving the problem of no fixed collection area and chaotic cleaning range of scattered coal on both sides of the traditional trestle.

[0024] The aggregate plate 3 is provided with a bidirectional driving element 4 on one side, the surface of the bidirectional driving element 4 is provided with two guide seats 5, and the two guide seats 5 are both in sliding connection with the aggregate plate 3, a cleaning frame 6 is arranged on one side of the guide seat 5, the bidirectional driving element 4 can synchronously drive the two guide seats 5 and the cleaning frame 6 to move from both ends to the middle of the aggregate plate 3, compared with the traditional single-side and single-direction cleaning, the cleaning efficiency is improved, and the whole area of the aggregate plate 3 can be covered without dead angle, especially the scattered coal particles at the corners can be cleaned, and the cleaning blind area is eliminated, each section of the conveyor is independently provided with the bidirectional driving element 4, the distributed segmented cleaning of the long stack bridge can be realized, the single-section fault does not affect the operation of other sections, the fault tolerance and overall reliability of the system are improved, it is suitable for long-distance coal conveying scenes of hundreds of meters to thousands of meters, and the cleaning frame 6 is in sliding connection with the aggregate plate 3, the spout structure of the cleaning frame 6 can quickly shovel the coal blocks and coal particles on the surface of the aggregate plate 3 into the frame during the movement process, the coal material is completely stored in the frame, the aggregate efficiency and the operation neatness are ensured.

[0025] A clamping frame 7 is fixedly installed on one side of the cleaning frame 6, a cleaning element 8 is arranged in the cleaning frame 6, the cleaning element 8 in the cleaning frame 6 can completely push the residual coal material adhered to the inner wall of the frame to the belt conveyor 2 in the coal material returning stage, so that the coal material is prevented from caking and remaining, the cleanliness of the cleaning frame 6 is ensured, and the coal material recycling rate is further improved, the resource waste is reduced, the cleaning element 8 can move in close contact with the inner wall of the cleaning frame 6, the adhered wet coal and fine coal particles are completely scraped and pushed, the coal material is prevented from accumulating and caking in the frame, the service life of the cleaning frame 6 is prolonged, and the next cleaning jam is eliminated due to the residual coal material, a supporting frame 9 is fixedly installed on one side of the aggregate plate 3, visual sensors 10 are fixedly installed on the two sides of the supporting frame 9, the visual sensors 10 can monitor the coal scattering amount and the accumulation position of the aggregate plate 3 in real time, ensure that the cleaning action is started only when it is really needed, and the precision of the device operation is improved.

[0026] The visual sensors 10 and the bidirectional driving element 4 are electrically connected through a controller, a lifting element 20 is penetratingly arranged at one end of the supporting frame 9, a connecting seat 30 is arranged at one end of the lifting element 20, the lifting element 20 can drive the connecting seat 30 and the clamped cleaning frame 6 to rise above the belt conveyor 2, the coal material is directly returned to the main conveying process through inclined unloading, which is different from the mode that the traditional cleaning device is collected and then transported out, the closed-loop recycling of the coal scattering is realized, the coal resource waste is greatly reduced, the raw material loss cost of the enterprise is reduced, and the two clamping frames 7 are both in sliding connection with the connecting seat 30, the lifting element 20 can reversely drive the cleaning frame 6 to fall to the height of the aggregate plate 3, cooperates with the reverse action of the bidirectional driving element 4, realizes the resetting of the cleaning frame 6, provides conditions for the next cleaning cycle, and ensures that the device can continuously and stably cope with the continuous coal scattering problem of the conveyor.

[0027] The coal conveying trestle body 1 is connected by several sections and the belt conveyors 2 are connected by several sections to form a long-distance conveying system. Each section of the belt conveyor 2 is independently provided with a set of cleaning units on both sides to realize distributed segmented control. In the initial state, the two cleaning frames 6 of each section of the cleaning unit are respectively docked at the two end portions of the material collecting plate 3, the guide seat 5 is kept in a locked and fitted state with the cleaning frame 6, the lifting piece 20 is in a low position standby state with the connecting seat 30, the overall device has no power consumption, and only the visual sensor 10 keeps real-time monitoring. The visual sensor 10 continuously collects the surface image of the material collecting plate 3, identifies the accumulation position, area and thickness of the coal blocks, and when it is detected that the amount of coal scattered on the material collecting plate 3 exceeds the preset threshold, the visual sensor 10 transmits a signal to the section controller (the controller is prior art and not shown in the figure) to trigger the cleaning instruction, so as to ensure that the operation is started only when the coal scattering meets the standard, and invalid power consumption is avoided. The bidirectional driving piece 4 is started, and the bidirectional driving piece 4 synchronously drives the two guide seats 5 to slide along the material collecting plate 3 in opposite directions, thereby pulling the two end cleaning frames 6 to move closer to the middle of the material collecting plate 3. The shovel opening at the bottom of the cleaning frame 6 synchronously shovels the scattered coal on the surface of the material collecting plate 3 into the frame body during the movement, so as to realize full-area dead-angle cleaning on both sides of the belt conveyor 2. Until the two cleaning frames 6 are completely connected at the middle of the material collecting plate 3, the scattered coal is completely in the cavity surrounded by the two cleaning frames 6, and the material collecting operation is completed.

[0028] When the two cleaning frames 6 are connected, the clamping frame 7 on the side wall of the cleaning frame 6 is precisely slid and clamped with the clamping groove of the connecting seat 30 in a low position, so that the two cleaning frames 6 form a stable linkage as a whole. Then the controller starts the lifting piece 20, drives the connecting seat 30 to vertically rise through the lifting piece 20, and the connecting seat 30 pulls the clamped cleaning frame 6 to synchronously move upward. The cooperation of the bottom of the cleaning frame 6 and the guide seat 5 can ensure the stability of the posture during the lifting process. Until the cleaning frame 6 moves to the top of the conveying belt of the belt conveyor 2 as a whole, the lifting piece 20 continuously pushes the connecting seat 30 to slightly move upward, and the inclined guide action of the guide seat 5 makes the two cleaning frames 6 synchronously overturn and tilt with the connecting portion as the fulcrum. At this time, the coal in the two cleaning frames 6 slides to the conveying belt of the belt conveyor 2 below under the action of gravity, realizing the recycling and cleaning of the scattered coal. At the same time, the cleaning piece 8 in the cleaning frame 6 starts to completely push the residual coal adhered to the inner wall of the cleaning frame 6 to the conveying belt, completing the self-cleaning of the cleaning frame 6 and avoiding the residual coal from caking. After the coal recycling is completed, the lifting piece 20 reverses the action to drive the connecting seat 30 and the cleaning frame 6 to fall back to the height of the material collecting plate 3. Then the bidirectional driving piece 4 reverses the operation to pull the two cleaning frames 6 to reset to the two end portions of the material collecting plate 3 along the guide seat 5, waiting for the next detection and cleaning instruction to realize the cyclic operation.

[0029] Therefore, through the design of bidirectional opposite cleaning, the limitation of traditional single-side cleaning is broken, two cleaning frames 6 converge from both ends of the aggregate plate 3 to the middle, which can cover the entire area of the aggregate plate 3 on both sides of the conveyor, clean large-area accumulated coal, and collect scattered coal particles at the corners, prevent channel blockage caused by coal accumulation on both sides of the belt conveyor 2, and adapt to long-distance coal conveying trestle through segmented distributed deployment, independently control each section of the conveyor, avoid affecting the overall cleaning due to single-section failure, improve the fault tolerance and coverage of the system, and through the lifting and returning structure, the swept coal is directly conveyed back to the main conveying process of the belt conveyor 2, realizing closed-loop recycling of coal, especially suitable for power plants, coal mines and other scenes with high utilization rate of coal resources, which can significantly reduce the raw material loss cost of enterprises in the long term, and the self-cleaning design of the cleaning frame 6 avoids coal residue, further guarantees the recycling efficiency, eliminates the secondary waste of resources caused by frame adhesion, and the whole process is automatically triggered and executed by the visual sensor 10 and the controller, without manual inspection and manual cleaning, which greatly reduces the labor intensity of the operation and maintenance personnel in the trestle, avoids the safety hazards such as slipping and dust inhalation when manually cleaning in the dusty and narrow trestle area, and improves the operation safety of the coal conveying system.

[0030] As shown in Figures 3-4 The two ends of the aggregate plate 3 are slidingly connected with the collection box 31. When the surface of the aggregate plate 3 is cleaned, since the belt conveyor 2 is still in operation, the belt conveyor 2 may shed a few coal blocks on the surface of the aggregate plate 3. Therefore, when the two cleaning frames 6 are cleaned and return to the initial position at both ends of the aggregate plate 3, the cleaning frames 6 can push the small amount of coal blocks on the aggregate plate 3 into the collection box 31 again for collection, which facilitates the staff to collect uniformly. The bidirectional driving member 4 includes a first motor 41 and a bidirectional screw 42 fixedly installed on the output end of the first motor 41. The bidirectional screw 42 is rotatably connected with the aggregate plate 3. The first motor 41 drives the output end of the bidirectional screw 42 to rotate synchronously. Since the rod body of the bidirectional screw 42 is processed with two sections of threads with opposite rotation directions, and the two guide seats 5 are engaged with the two sections of opposite threads respectively, when the bidirectional screw 42 rotates, it drives the two guide seats 5 to move axially towards each other, thereby pulling the cleaning frames 6 on the guide seats 5 to converge from both ends of the aggregate plate 3 to the middle, realizing opposite cleaning of the coal shed on the surface of the aggregate plate 3. The guide seat 5 is provided with a bellows 43 on both sides, and one end of the two bellows 43 is fixedly connected with the first motor 41 and the aggregate plate 3. The bellows 43 has the characteristics of flexible sealing and expansion adaptation, can wrap the thread engagement area of the bidirectional screw 42 throughout the process, and isolate the coal dust and coal particles and other impurities in the trestle to avoid impurities entering the thread gap to cause wear, jam or rust of the bidirectional screw 42. Especially in the harsh working conditions of the dusty and humid coal conveying trestle, the maintenance period of the bidirectional screw 42 can be extended, and the equipment failure rate and operation and maintenance cost can be greatly reduced.

[0031] As Figures 6-8 and Figure 12 As shown in the drawings, the guide seat 5 is fixedly installed with a threaded block 51 on one side, and the threaded block 51 is threadedly connected with the bidirectional screw rod 42. The threaded block 51 is slidably connected with the aggregate plate 3. The guide seat 5 is internally provided with a vertical groove 52. The vertical groove 52 is internally fixedly installed with a sliding rod 53. The guide seat 5 is further internally provided with an arc-shaped groove 54. The vertical groove 52 is in communication with the arc-shaped groove 54. When the cleaning frame 6 is lifted along the vertical groove 52 to the position of the arc-shaped groove 54, the curved trajectory of the arc-shaped groove 54 can guide the cleaning frame 6 to change from vertical movement to arc-shaped overturning movement. At this time, the cleaning frame 6 is slowly inclined with the center of the arc-shaped groove 54 as the fulcrum, so that the coal in the frame can smoothly slide in the inclined direction to the belt conveyor 2, avoiding splashing of coal due to sudden overturning, and improving the stability and thoroughness of the unloading process.

[0032] The cleaning frame 6 is fixedly installed with a cylinder 61 on one side. The cylinder 61 is slidably connected with the vertical groove 52 and the sliding rod 53. The cleaning frame 6 is internally fixedly installed with a limiting rod 62. The limiting rod 62 is fixedly installed with a stop block 63 at one end. The cleaning frame 6 is rotatably connected with a roller 64 on both sides. The roller 64 is in contact with the guide seat 5. The cylinder 61 is slidably connected with the vertical groove 52 and the sliding rod 53 of the guide seat 5, forming a double-guiding structure, which ensures that the cleaning frame 6 always moves smoothly along the preset trajectory during lifting or overturning, without deviation and jamming, greatly improving the stability of the action of the cleaning frame 6, avoiding premature leakage of coal in the frame due to shaking, and especially firmly locking the coal during lifting to ensure transportation safety.

[0033] The clamping frame 7 is provided with a sliding groove 71 penetrating on one side. When the lifting part 20 drives the connecting seat 30 to lift the cleaning frame 6, the cleaning frame 6 needs to move vertically along the vertical groove 52 of the guide seat 5, and during the overturning and unloading stage, the cleaning frame 6 needs to rotate with the arc-shaped groove 54. The penetrating design of the sliding groove 71 can compensate for the trajectory deviation of the two actions. The connecting seat 30 and the cleaning frame 6 are allowed to slide relative to each other in the vertical direction during lifting, and the angle deviation of the two is adapted during overturning, avoiding structural jamming or rupture caused by rigid connection, and making the lifting and overturning actions more smooth.

[0034] The cleaning piece 8 comprises an electromagnet 81 and a scraper plate 82 slidingly connected to the surface of the limiting rod 62, the electromagnet 81 is fixedly connected with the cleaning frame 6, the scraper plate 82 is slidingly connected with the cleaning frame 6, the scraper plate 82 can be made of wear-resistant material, the surface is smooth and has high hardness, which can reduce the friction loss with the inner wall of the cleaning frame 6 and can withstand the impact of large coal, and is not easy to deform or break, a magnet block 83 is installed on one side of the scraper plate 82, and the magnet block 83 is in contact with the electromagnet 81, in the initial state, the friction between the scraper plate 82 and the limiting rod 62 is large, so that the displacement of the scraper plate 82 is prevented, when the cleaning frame 6 moves to clean the coal mine, the electromagnet 81 is powered to generate a magnetic force to attract the magnet block 83, so that the position deviation of the scraper plate 82 is prevented, and the electromagnet 81 is started only when the cleaning frame 6 is cleaned, when it is needed to push the coal in the cleaning frame 6 or clean the coal attached to the inner wall of the cleaning frame 6, the electromagnet 81 is switched to repel the magnet block 83, so that the scraper plate 82 is pushed to clean the coal in the cleaning frame 6 or the attached coal, and when the cleaning frame 6 returns to the initial position, the electromagnet 81 is powered again to move the scraper plate 82 to the initial position and then is powered off.

[0035] In order to solve the technical problem that the scattered coal is not convenient to be sent back to the belt conveyor 2, resulting in resource waste caused by a large amount of coal scattering, like Figures 9-12 As shown in the drawings, the following preferred technical solutions are provided: As shown in the drawings, Figure 9 and Figure 10 As shown in the drawings, the lifting piece 20 comprises a second motor 201 and a threaded rod 202 fixed to the output end of the second motor 201, and the threaded rod 202 is rotationally connected with the support frame 9, a protective cylinder 203 is arranged on the outer wall of the threaded rod 202, and the protective cylinder 203 is fixedly connected with the support frame 9, the threaded rod 202 and the connecting seat 30 form a threaded transmission structure, the rotational motion of the second motor 201 can be converted into the vertical linear motion of the connecting seat 30, so that the cleaning frame 6 can be accurately stopped at the preset height each time, and the coal is prevented from scattering outside the conveying belt during unloading or colliding with the material collecting plate 3 during falling back due to height deviation.

[0036] Two guide grooves 204 are formed in the protective cylinder 203, the guide grooves 204 can limit the movement of the connecting seat 30, and ensure that the connecting seat 30 can move up and down.

[0037] As shown in the drawings, Figures 9-12As shown, the connecting seat 30 comprises a threaded sleeve 301 and a fixed block 302 fixed at one end of the threaded sleeve 301, the threaded sleeve 301 is threadedly connected with the threaded rod 202, the threaded sleeve 301 is threadedly engaged with the threaded rod 202, and the threaded engagement can convert the rotary motion of the threaded rod 202 into the vertical linear motion of the threaded sleeve 301, thereby driving the fixed block 302 and the cleaning frame 6 to synchronously ascend and descend, the threaded engagement transmission mode has no risk of slipping, keeps the ascending and descending action stable, avoids the cleaning frame 6 from hovering or falling due to interruption of power transmission, and the threaded sleeve 301 is slidably connected with the protective cylinder 203, both ends of the fixed block 302 are rotatably connected with rotating columns 303, and the rotating columns 303 are in contact with the sliding grooves 71, when the two rotating columns 303 are inserted into the sliding grooves 71, the rotating columns 303 can drive the clamping frame 7 to move.

[0038] The threaded sleeve 301 is fixedly installed with sliding blocks 304 on both sides, the sliding blocks 304 are slidably connected with the guide grooves 204, the sliding blocks 304 are precisely matched with the guide grooves 204, the two symmetrically distributed sliding blocks 304 can limit the radial displacement of the threaded sleeve 301 from both sides, the threaded sleeve 301 can only move along the vertical track of the guide groove 204, avoiding left and right shaking of the threaded sleeve 301, and ensuring that the cleaning frame 6 can be precisely aligned with the unloading area above the belt conveyor 2 each time.

[0039] It should be noted that, in this document, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0040] Although embodiments of the present application have been shown and described, it is to be understood that various modifications, substitutions, replacements and variations can be made to these embodiments without departing from the principles and spirit of the present application, and the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A distributed coal-distributing cleaning device for a coal conveying trestle, comprising a coal conveying trestle body (1) and a belt conveyor (2) installed inside the coal conveying trestle body (1), characterized in that: The both sides of the belt conveyor (2) are fixedly provided with collecting plates (3), one side of the collecting plate (3) is provided with a bidirectional driving element (4), the surface of the bidirectional driving element (4) is provided with two guide seats (5), and the two guide seats (5) are both in sliding connection with the collecting plate (3), one side of the guide seat (5) is provided with a cleaning frame (6), and the cleaning frame (6) is in sliding connection with the collecting plate (3), one side of the cleaning frame (6) is fixedly provided with a clamping frame (7), the cleaning frame (6) is internally provided with a cleaning element (8), one side of the collecting plate (3) is fixedly provided with a supporting frame (9), the both sides of the supporting frame (9) are fixedly provided with visual sensors (10), the visual sensors (10) are electrically connected with the bidirectional driving element (4) through a controller, one end of the supporting frame (9) is provided with a lifting element (20), one end of the lifting element (20) is provided with a connecting seat (30), and the two clamping frames (7) are both in sliding connection with the connecting seat (30).

2. A distributed coal-spreading cleaning device for a coal conveyor trestle according to claim 1, characterized in that: The both ends of the collecting plate (3) are slidably clamped with collecting boxes (31); The bidirectional driving element (4) comprises a first motor (41) and a bidirectional screw rod (42) fixedly arranged at the output end of the first motor (41), the bidirectional screw rod (42) is in rotation connection with the collecting plate (3), the both sides of the guide seat (5) are provided with corrugated pipes (43), and one end of the two corrugated pipes (43) is fixedly connected with the first motor (41) and the collecting plate (3).

3. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 2, characterized in that: One side of the guide seat (5) is fixedly provided with a threaded block (51), the threaded block (51) is in threaded connection with the bidirectional screw rod (42), the threaded block (51) is in sliding connection with the collecting plate (3), a vertical groove (52) is formed in the guide seat (5), a sliding rod (53) is fixedly arranged in the vertical groove (52), and an arc-shaped groove (54) is further formed in the guide seat (5) and communicates with the vertical groove (52).

4. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 3, characterized in that: One side of the cleaning frame (6) is fixedly provided with a cylinder (61), the cylinder (61) is in sliding connection with the vertical groove (52) and the sliding rod (53), a limiting rod (62) is fixedly arranged in the cleaning frame (6), one end of the limiting rod (62) is fixedly provided with a stop block (63), and a roller (64) is rotatably arranged at the both sides of the cleaning frame (6) and is in contact with the guide seat (5).

5. A distributed coal-spreading cleaning device for a coal conveyor trestle according to claim 1, characterized in that: One side of the clamping frame (7) is provided with a sliding groove (71).

6. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 4, characterized in that: The cleaning element (8) comprises an electromagnet (81) and a scraper plate (82) slidably arranged on the surface of the limiting rod (62), the electromagnet (81) is fixedly connected with the cleaning frame (6), the scraper plate (82) is in sliding connection with the cleaning frame (6), one side of the scraper plate (82) is provided with a magnet block (83), and the magnet block (83) is in contact with the electromagnet (81).

7. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 5, characterized in that: The lifting element (20) comprises a second motor (201) and a threaded rod (202) fixedly arranged at the output end of the second motor (201), the threaded rod (202) is in rotation connection with the supporting frame (9), a protective cylinder (203) is arranged on the outer wall of the threaded rod (202), and the protective cylinder (203) is fixedly connected with the supporting frame (9).

8. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 7, characterized in that: Two guide grooves (204) are formed in the protective cylinder (203).

9. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 8, characterized in that: The connecting seat (30) comprises a threaded sleeve (301) and a fixed block (302) fixed at one end of the threaded sleeve (301), the threaded sleeve (301) is in threaded connection with the threaded rod (202), and the threaded sleeve (301) is in sliding connection with the protective cylinder (203), both ends of the fixed block (302) are rotationally connected with rotating columns (303), and the rotating columns (303) are in contact with the sliding grooves (71).

10. A distributed coal-spreading cleaning apparatus for a coal conveyor trestle according to claim 9, characterized in that: Both sides of the threaded sleeve (301) are fixedly provided with sliding blocks (304), and the sliding blocks (304) are in sliding connection with the guide grooves (204).

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