An unmanned belt conveyor UAV inspection system

Abstract

The present invention discloses an unattended belt conveyor UAV inspection system, which includes a monitoring room, an inspection passage, an inspection UAV and a battery replacement station. The battery replacement station is installed in the inspection passage. The inspection UAV is integrated with a processor, a pick-up module, an audio processor module, a camera module, an image processing module, a gas sensor, a wireless communication module, a battery management module, a battery module, a storage module and a positioning module. The UAV can automatically complete fixed-point landing, and a manipulator automatically replaces the battery of the UAV without manual intervention. After the battery replacement is completed, the battery with insufficient power is charged in the battery replacement station, and the UAV continues to perform the inspection task. The provided dust removal structure performs dust removal treatment on the inspection UAV on the rotating table to ensure that the inspection UAV enters the dust-proof box in a dust-free state. High-pressure air can perform dust removal treatment on the dust-proof net through the connecting pipe, the conduit and the air jet pipe to ensure the smooth flow of the air current.

Description

Technical Field

[0001] The present invention relates to the technical field of belt line inspection, and in particular to an unattended UAV inspection system for belt conveyors. Background Art

[0002] Belt conveyors have strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can be conveniently programmed and automated. They use the continuous or intermittent movement of the conveyor belt to transport items, running at high speed, smoothly, with low noise, and can convey up and down slopes.

[0003] The existing UAV inspection only replaces manual inspection of the line and transmits image and sound signals to the monitoring room in real time, and cannot be completely separated from manual intervention; the UAV has a short flight distance and cannot achieve long-distance inspection of belt conveyors. For the UAV line inspection scheme with a charging station, its charging time is long and the UAV inspection time is short; during the process of the UAV replacing manual line inspection, since it is necessary to check for faults with the human eye, the flight speed is limited. Calculated by time, the slower the flight speed of the UAV, the shorter its endurance mileage. Therefore, the technical personnel in this field have provided an unattended UAV inspection system for belt conveyors to solve the problems raised in the above background art. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides an unattended UAV inspection system for belt conveyors, which includes a monitoring room, an inspection passage, inspection UAVs and a swapping station. The swapping station is installed in the inspection passage. The inspection UAV is integrated with a processor, a pick-up module, an audio processor module, a camera module, an image processing module, a gas sensor, a wireless communication module, a battery management module, a battery module, a storage module and a positioning module; the swapping station includes a bottom support structure, a lifting platform structure, a dust-proof swapping structure and a dust removal structure. The upper part of the bottom support structure is slidably connected to the lifting platform structure. One side of the upper part of the bottom support structure is installed with a dust-proof structure connected to the lifting platform, and the other side of the upper part of the bottom support structure is fixedly installed with a dust-proof swapping structure. The dust removal structure is fixedly installed at the open end of the side of the dust-proof swapping structure.

[0005] Preferably: The bottom support structure includes a base and a first screw slide table. The first screw slide table is installed inside the base, and the sliding block on the first screw slide table is fixedly connected to the lifting platform structure by bolts.

[0006] Preferably, the lifting platform structure includes a landing platform. An installation groove is formed in the middle of the landing platform. A rotating table is installed inside the installation groove. The lower end of the rotating table is fixedly connected to a cover plate by screws. The middle of the cover plate is fixedly connected to a rotating shaft. A bearing is installed on the upper part of the rotating shaft. The bearing is installed at the bottom inside the installation groove. The other end of the rotating shaft extends outside the installation groove. A reducer is connected to the lower part of the rotating shaft. The input end of the reducer is connected to a stepping motor. The stepping motor is fixed to the lower end of the landing platform. The lower end of the rotating shaft is connected to a rotating electrical wire connector. A limiting ring is installed corresponding to the rotating table in the middle of the landing platform. A ball groove is formed on the side surface of the rotating table. Multiple balls are arranged in the ball groove. The balls roll and contact the inner side surface of the installation groove. A ball groove is formed at the shoulder of the rotating table. Multiple balls are arranged in the ball groove. The balls roll and contact the lower side surface of the limiting ring. A support seat corresponding to the support leg of the line inspection helicopter is arranged at the upper end of the rotating table. An electromagnet is arranged in the middle of the support seat. The wire of the electromagnet extends to the central through hole of the rotating shaft through a wire groove arranged on the rotating table. The wire is connected to the rotating electrical wire connector. A protective cover is installed in the middle of the lower end of the rotating table. A fixing plate is arranged at the tail end of the landing platform.

[0007] Preferably, the dust-proof battery replacement structure includes a dust-proof box, a third screw rod slide table, and a fourth screw rod slide table. The third screw rod slide table is installed inside the dust-proof box. The sliding block on the third screw rod slide table is fixedly connected to the fourth screw rod slide table by bolts. The sliding block of the fourth screw rod slide table is connected to an installation table by bolts. A mechanical hand gripper is installed on the upper end of the installation table. Multiple battery charging seats are installed at equal intervals at the inner end of the dust-proof box. Batteries are installed on the battery charging seats.

[0008] Preferably, the dust-proof structure includes multiple dust-proof covers sleeved in sequence. A sliding groove is arranged at the lower part of the outer side of the dust-proof cover. A sliding block is arranged corresponding to the sliding groove inside the dust-proof cover. A limiting block is arranged at the tail of the upper end of the dust-proof cover. The front end of the outermost dust-proof cover is fixedly connected to a fixing plate.

[0009] Preferably, the dust removal structure includes a second screw rod slide table installed at the opening end of the dust-proof box. Symmetrical pressing plates and backing plates are arranged at the end of the sliding block of the second screw rod slide table. A dust removal pipe is arranged between the pressing plate and the backing plate. Multiple nozzles are arranged at equal intervals on one side of the dust removal pipe corresponding to the lifting platform structure. A guide pipe is connected to the middle of the other side of the dust removal pipe. The other end of the guide pipe is connected to a three-way solenoid valve. The air inlet of the three-way solenoid valve is connected to a high-pressure air pump. The high-pressure air pump is fixed on the top of the dust-proof box. The other outlet end of the three-way solenoid valve is connected to a connecting pipe. A conduit is arranged at the upper end and the side of the connecting pipe respectively. The other end of the conduit is connected to a jet pipe. Multiple through holes are arranged at equal intervals on the side wall of the jet pipe. A protective cover is arranged outside the air pump at the upper end of the dust-proof box. An air window corresponding to the jet pipe is arranged on the protective cover. A dust-proof net is installed on the air window.

[0010] Preferably, the upper end of the pressing plate is fixedly connected to a dust-proof layer. The other end of the dust-proof layer is fixedly connected to the upper side wall of the dust-proof box. The dust-proof layer is a corrugated rubber layer.

[0011] Preferably, a groove matching with the support legs of the inspection UAV is formed in the upper part of the support base, and a shock-absorbing layer is arranged on the inner side of the groove, and the shock-absorbing layer is a rubber layer.

[0012] Technical effects and advantages of the present invention:

[0013] 1. When the inspection UAV flies along the manual inspection passage and fails and drops, it will not fall into the belt conveyor, causing faults or accidents.

[0014] 2. When the UAV conducts inspections, it does not need to maintain communication with the monitoring room at all times. Only when an abnormality is detected, the abnormal signal is sent to the monitoring room. During daily inspections, the normal operation is reported using heartbeat signals. This greatly reduces the communication pressure of the UAV, reduces power consumption, and provides a wider range of options for the remote communication method of the UAV.

[0015] 3. The inspection passage is provided with a dust-proof battery replacement station. The UAV can automatically complete a fixed-point landing, and the manipulator automatically replaces the battery of the UAV without manual intervention. After the battery replacement is completed, the battery with insufficient power is charged in the battery replacement station, and the UAV continues to perform the inspection task.

[0016] 4. In the provided dust removal structure, the dust removal pipe can move up and down driven by the second lead screw slide table to perform dust removal treatment on the inspection UAV on the turntable, ensuring that the inspection UAV enters the dust-proof box in a dust-free state.

[0017] 5. Under the action of the three-way solenoid valve, high-pressure air can perform dust removal treatment on the dust-proof net through the connecting pipe, the conduit and the air jet pipe, ensuring the smooth flow of the air flow. Description of the Drawings

[0018] Figure 1 is the structural diagram of the battery replacement station in the unattended belt conveyor UAV inspection system provided by the embodiment of the present application;

[0019] Figure 2 is Figure 1 the structural diagram at position A in

[0020] Figure 3 is Figure 1 the structural schematic diagram at position A in

[0021] Figure 4 is the connection structural diagram of the landing platform in the unattended belt conveyor UAV inspection system provided by the embodiment of the present application;

[0022] Figure 5 is the structural schematic diagram of the middle part of the landing platform in the unattended belt conveyor UAV inspection system provided by the embodiment of the present application;

[0023] Figure 6It is the internal structure diagram of the dust-proof box in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0024] Figure 7 It is the schematic diagram of the partial structure in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0025] Figure 8 It is the structure diagram of the cleaning component in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0026] Figure 9 It is the structure diagram of the dust removal component in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0027] Figure 10 It is the structure diagram of the first lead screw slide in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0028] Figure 11 It is the connection structure diagram of the third lead screw slide and the fourth lead screw slide in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application;

[0029] Figure 12 It is the functional module integration block diagram of the line inspection UAV in the unmanned belt conveyor UAV inspection system provided by the embodiments of the present application.

[0030] In the figure: base 1, first lead screw slide 2, landing platform 3, inspection UAV 4, second lead screw slide 5, protective cover 6, dust-proof box 7, third lead screw slide 8, fixing plate 9, dust-proof cover 10, chute 11, slider 12, limit block 13, support seat 14, protective cover 15, nozzle 16, dust-proof layer 17, dust removal pipe 18, air guide pipe 19, pressing plate 20, fourth lead screw slide 21, battery charging seat 22, air injection pipe 23, dust-proof net 24, conduit 25, high-pressure air pump 26, connecting pipe 27, limit ring 28, rotating table 29, shock-absorbing layer 30, electromagnet 31, wire groove 32, wire 33, bearing 34, ball 35, rotating shaft 36, reducer 37, rotating wire joint 38, stepping motor 39, installation table 40, cover plate 41, mechanical hand gripper 42, cushion plate 43, three-way solenoid valve 44. Specific embodiments

[0031] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments. The embodiments of the present invention are given for the purpose of illustration and description, and are not exhaustive or limit the present invention to the disclosed form. Many modifications and variations are obvious to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and enable those of ordinary skill in the art to understand the present invention and thus design various embodiments with various modifications suitable for specific purposes.

[0032] Embodiment 1

[0033] Please refer to Figures 1 to 12 , in this embodiment, an unattended belt conveyor UAV inspection system is provided, including a monitoring room, an inspection passage, an inspection UAV 4 and a power exchange station. The power exchange station is installed in the inspection passage. The inspection UAV is integrated with a processor, a pick-up module, an audio processor module, a camera module, an image processing module, a gas sensor, a wireless communication module, a battery management module, a battery module, a storage module and a positioning module; the power exchange station includes a bottom support structure, a lifting platform structure, a dust-proof power exchange structure and a dust removal structure. The upper part of the bottom support structure is slidably connected to the lifting platform structure. One side of the upper part of the bottom support structure is provided with a dust-proof structure connected to the lifting platform, and the other side of the upper part of the bottom support structure is fixedly installed with a dust-proof power exchange structure. The dust removal structure is fixedly installed at the open end of the side of the dust-proof power exchange structure.

[0034] The bottom support structure includes a base 1 and a first screw slide table 2. The first screw slide table 2 is installed inside the base 1, and the sliding block on the first screw slide table 2 is fixedly connected to the lifting platform structure by bolts.

[0035] The lifting platform structure includes a landing platform 3. An installation groove is formed in the middle of the landing platform 3. A rotating platform 29 is installed inside the installation groove. The lower end of the rotating platform 29 is fixedly connected to a cover plate 41 by screws. A rotating shaft 36 is fixedly connected to the middle of the cover plate 41. A bearing 34 is installed at the upper part of the rotating shaft 36. The bearing 34 is installed at the bottom inside the installation groove. The other end of the rotating shaft 36 extends to the outside of the installation groove. The lower part of the rotating shaft 34 is connected to a reducer 37. The input end of the reducer 37 is connected to a stepping motor 39. The stepping motor 39 is fixed to the lower end of the landing platform 3. The lower end of the rotating shaft 34 is connected to a rotating electrical wire connector 38. A limiting ring 28 is installed corresponding to the rotating platform 29 in the middle of the landing platform 3. Ball grooves are formed on the side surface of the rotating platform 29. Multiple balls 35 are arranged in the ball grooves. The balls 35 are in rolling contact with the inner side surface of the installation groove. Ball grooves are formed at the shoulder of the rotating platform 29. Multiple balls 35 are arranged in the ball grooves. The balls 35 are in rolling contact with the lower side surface of the limiting ring 28. A support seat 14 corresponding to the support leg of the line inspection helicopter is arranged at the upper end of the rotating platform 29. An electromagnet 31 is arranged in the middle of the support seat 14. The wire 33 of the electromagnet 31 extends into the central through hole of the rotating shaft 36 through the wire groove 32 arranged on the rotating platform 29. The wire 33 is connected to the rotating electrical wire connector 38. A protective cover 15 is installed in the middle of the lower end of the rotating platform 29. A fixing plate 9 is arranged at the tail end of the landing platform 3.

[0036] The dust-proof power exchange structure includes a dust-proof box 7, a third lead screw slide 8 and a fourth lead screw slide 21. The third lead screw slide 8 is installed inside the dust-proof box 7. The sliding block on the third lead screw slide 8 is fixedly connected to the fourth lead screw slide 21 by bolts. The sliding block of the fourth lead screw slide 21 is connected to an installation table 40 by bolts. A manipulator gripper 42 is installed at the upper end of the installation table 40. Multiple battery charging seats 22 are installed at equal intervals at the inner end of the dust-proof box 7. Batteries are installed on the battery charging seats 22.

[0037] The dust-proof structure includes a plurality of dust-proof covers 10 sleeved in sequence. A chute 11 is arranged at the lower part of the outer side of the dust-proof cover 10. A slider 12 is arranged corresponding to the chute 11 inside the dust-proof cover 10. A limiting block 13 is arranged at the tail of the upper end of the dust-proof cover 10. The front end of the outermost dust-proof cover 10 is fixedly connected to the fixing plate 9. The dust-proof cover 10 can be unfolded to form a dust-proof structure with the height increasing sequentially from the tail to the head. When the lifting platform structure moves into the dust-proof box 7, the dust-proof cover 10 is unfolded to cover the open part above the base 1, preventing dust from falling into the first lead screw slide 2 inside the base 1.

[0038] The dust removal structure includes a second lead screw slide table 5 installed at the open end of the dust-proof box 7. Symmetrical pressing plates 20 and backing plates 43 are arranged at the end of the sliding block of the second lead screw slide table 5. A dust removal pipe 18 is arranged between the pressing plate 20 and the backing plate 43. A plurality of nozzles 16 are arranged at equal intervals on one side of the dust removal pipe 18 corresponding to the lifting table structure. A guide pipe 19 is connected to the middle of the other side of the dust removal pipe 18. The other end of the guide pipe 19 is connected to a three-way solenoid valve 44. The air inlet of the three-way solenoid valve 44 is connected to a high-pressure air pump 26. The high-pressure air pump 26 is fixed on the top of the dust-proof box 7. The other outlet end of the three-way solenoid valve 44 is connected to a connecting pipe 27. Guide pipes 25 are respectively arranged at the upper end and the side of the connecting pipe 27. The other ends of the guide pipes 25 are connected to an air injection pipe 23. A plurality of through holes are arranged at equal intervals on the side wall of the air injection pipe 23. A protective cover 6 is arranged outside the air pump 26 at the upper end of the dust-proof box 7. An air window is arranged on the protective cover 6 corresponding to the air injection pipe 23, and a dust-proof net 24 is installed on the air window.

[0039] The upper end of the pressing plate 20 is fixedly connected to a dust-proof layer 17. The other end of the dust-proof layer 17 is fixedly connected to the upper side wall of the dust-proof box. The dust-proof layer 17 is a corrugated rubber layer. When the dust-proof layer 17 is unfolded, it closes the open end of the dust-proof box 7 to prevent dust from entering the dust-proof box and ensure the power replacement environment of the inspection UAV.

[0040] A groove matching with the support legs of the inspection UAV is arranged in the upper part of the support seat 14, and a shock-absorbing layer 30 is arranged inside the groove. The shock-absorbing layer 30 is a rubber layer.

[0041] During use, the UAV flies along the manual inspection passage. The camera module observes the operation of the idler from the side and uses the microphone module to collect the audio signal of the belt conveyor operation. At the same time, a gas sensor is carried to monitor the operation state of the belt conveyor. In this way, when the UAV fails and falls, it will not fall into the belt conveyor, causing a failure or accident, but only fall on the ground of the inspection passage. After the aircraft fails, it sends a fault alarm message and positioning information, and at the same time, the duty personnel handle it.

[0042] After the UAV collects signals such as images and sounds, it does not directly transmit them to the monitoring room, but processes the signals through the processor carried by the UAV. When an abnormality is found, information such as the abnormal signal, the type of abnormality, the location where the abnormality occurs, and the occurrence time is transmitted to the monitoring room. The monitoring room manually controls another UAV to fly to the fault point to confirm the fault by comparing the abnormal signal sent by the first UAV. The control and operation of the second UAV do not affect the normal operation of the inspection UAV. If they meet, the second UAV dodges the flight path of the first UAV through positioning and the flight camera. After the second UAV confirms the fault, the duty personnel determine whether the fault requires the belt conveyor to stop or requires personnel to go to the site for a third confirmation.

[0043] The processing of the collected signals includes, but is not limited to, the judgment of hot spots in thermal imaging, the identification and separation of abnormal operation noise signals, and the detection of abnormal gases during operation.

[0044] The inspection passage is equipped with a dust-proof battery replacement station. The location of the battery replacement station is calculated based on the flight distance of the UAV and the battery performance. The battery replacement station is set at a location where the remaining power of the battery for calculating the flight endurance is less than 50 - 30%. The UAV can automatically complete a fixed-point landing. The support legs of the inspection UAV fall into the grooves of the support seats. The shock-absorbing layer in the grooves cushions and relieves the force on the UAV. Under the action of the first lead screw slide table, the lifting table structure moves towards the dust-proof box. The dust removal pipe on the dust-proof box moves upward under the action of the second lead screw slide table. During the movement, high-pressure gas is sprayed through the nozzles to blow off the dust on the UAV. During the upward movement of the dust removal pipe, the dust-proof layer on the pressing plate is retracted upward, exposing the open end of the dust-proof box. After the lifting table structure enters the interior of the dust-proof box, the dust removal pipe moves downward under the action of the second lead screw slide table, and the dust-proof layer closes the open end of the dust-proof box. Then, the battery of the UAV is automatically replaced by the manipulator without manual intervention. After the battery replacement is completed, the under-powered battery is charged in the battery replacement station, and the UAV continues to perform the inspection task. The battery replacement station needs to have a dust-proof function, and multiple batteries need to be stocked in the battery replacement station.

[0045] The UAV is equipped with a battery energy management system. When the battery performance deteriorates, a warning signal is sent to remind the duty personnel to replace the battery.

[0046] When the UAV conducts inspections, it does not need to maintain communication with the monitoring room all the time. Only when an abnormality is detected, the abnormal signal is sent to the monitoring room. During daily inspections, the normal operation is reported using heartbeat signals. This greatly reduces the communication pressure of the UAV, reduces power consumption, and provides a wider range of choices for the remote communication method of the UAV.

[0047] The monitoring system has the ability to send alarm and warning notifications through instant communication methods such as SMS and WeChat on mobile phones. According to requirements, the alarm and warning methods of the UAV can be selected as instant communication methods or only be reminded in the monitoring software.

[0048] The UAV can achieve autonomous flight and cruise through a set route, has the function of autonomous obstacle avoidance, has the function of flying at a fixed altitude, has the function of automatically descending in case of a failure of any one rotor, has the function of precise positioning, has the function of automatically replacing the external battery, has an intrinsically safe power supply, has the ability to fly and work in a multi-dust environment, and has the ability to handle emergencies in case of a short-term signal loss.

[0049] Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art and related fields without creative efforts shall fall within the protection scope of the present invention. The structures, devices, and operation methods not specifically described and explained in the present invention, unless otherwise specified and limited, are implemented according to the conventional means in the art.

Claims

1. An unattended belt conveyor UAV inspection system, comprising a monitoring room, an inspection passage, an inspection UAV (4) and a power exchange station, characterized in that, The battery swapping station is installed in the inspection passage. The inspection UAV is integrated with a processor, a pickup module, an audio processor module, a camera module, an image processing module, a gas sensor, a wireless communication module, a battery management module, a battery module, a storage module and a positioning module; the battery swapping station includes a bottom support structure, a lifting platform structure, a dust-proof battery swapping structure and a dust removal structure. The upper part of the bottom support structure is slidably connected to the lifting platform structure. One side of the upper part of the bottom support structure is provided with a dust-proof structure connected to the lifting platform, and the other side of the upper part of the bottom support structure is fixedly installed with a dust-proof battery swapping structure. The dust removal structure is fixedly installed at the open end of the side of the dust-proof battery swapping structure; the lifting platform structure includes a landing platform (3). An installation groove is formed in the middle of the landing platform (3). A rotating table (29) is installed inside the installation groove. The lower end of the rotating table (29) is fixedly connected to a cover plate (41) by screws. The middle of the cover plate (41) is fixedly connected to a rotating shaft (36). A bearing (34) is installed at the upper part of the rotating shaft (36). The bearing (34) is installed at the inner bottom of the installation groove. The other end of the rotating shaft (36) extends outside the installation groove. The lower part of the rotating shaft (36) is connected to a reducer (37). The input end of the reducer (37) is connected to a stepping motor (39). The stepping motor (39) is fixed at the lower end of the landing platform (3). The lower end of the rotating shaft (36) is connected to a rotating wire connector (38). A limiting ring (28) is installed in the middle of the landing platform (3) corresponding to the rotating table (29). Ball grooves are formed on the side surface of the rotating table (29). Multiple balls (35) are arranged in the ball grooves. The balls (35) are in rolling contact with the inner side surface of the installation groove. Ball grooves are formed at the shoulder of the rotating table (29). Multiple balls (35) are arranged in the ball grooves. The balls (35) are in rolling contact with the lower side surface of the limiting ring (28). A support seat (14) corresponding to the support leg of the line inspection helicopter is arranged at the upper end of the rotating table (29). An electromagnet (31) is arranged in the middle of the support seat (14). The wire (33) of the electromagnet (31) extends into the central through hole of the rotating shaft (36) through the wire groove (32) arranged on the rotating table (29). The wire (33) is connected to the rotating wire connector (38). A protective cover (15) is installed in the middle of the lower end of the rotating table (29). A fixing plate (9) is arranged at the tail end of the landing platform (3); The bottom support structure includes a base (1) and a first lead screw slide table (2). The first lead screw slide table (2) is installed inside the base (1). The sliding block on the first lead screw slide table (2) is fixedly connected to the lifting platform structure by bolts; The dust-proof battery swapping structure includes a dust-proof box (7), a third lead screw slide table (8) and a fourth lead screw slide table (21). The third lead screw slide table (8) is installed inside the dust-proof box (7). The sliding block on the third lead screw slide table (8) is fixedly connected to the fourth lead screw slide table (21) by bolts. The sliding block of the fourth lead screw slide table (21) is connected to an installation table (40) by bolts. A manipulator (42) is installed at the upper end of the installation table (40). A plurality of battery charging seats (22) are installed at equal intervals at the inner end of the dust-proof box (7). Batteries are installed on the battery charging seats (22).

2. The unattended belt conveyor UAV inspection system according to claim 1, characterized in that, The dust removal structure includes a plurality of dust-proof covers (10) sleeved in sequence. A chute (11) is arranged at the lower part of the outer side of the dust-proof cover (10). A slider (12) is arranged on the inner side of the dust-proof cover (10) corresponding to the chute (11). A limit block (13) is arranged at the tail end of the upper end of the dust-proof cover (10). The front end of the outermost dust-proof cover (10) is fixedly connected to a fixing plate (9).

3. The unattended belt conveyor UAV inspection system according to claim 2, characterized in that, The dust removal structure includes a second lead screw slide (5) installed at the opening end of a dust-proof box (7). Symmetric pressing plates (20) and cushion plates (43) are arranged at the end of the sliding block of the second lead screw slide (5). A dust removal pipe (18) is arranged between the pressing plate (20) and the cushion plate (43). A plurality of nozzles (16) are arranged at equal intervals on one side of the dust removal pipe (18) corresponding to the lifting table structure. A guide pipe (19) is connected to the middle of the other side of the dust removal pipe (18). The other end of the guide pipe (19) is connected to a three-way solenoid valve (44). An inlet of the three-way solenoid valve (44) is connected to a high-pressure air pump (26). The high-pressure air pump (26) is fixed on the top of the dust-proof box (7). Another outlet end of the three-way solenoid valve (44) is connected to a connecting pipe (27). A conduit (25) is arranged at the upper end and the side of the connecting pipe (27). The other end of the conduit (25) is connected to an air spraying pipe (23). A plurality of through holes are arranged at equal intervals on the side wall of the air spraying pipe (23). A protective cover (6) is sleeved outside the air pump (26) at the upper end of the dust-proof box (7). An air window is arranged on the protective cover (6) corresponding to the air spraying pipe (23), and a dust-proof net (24) is installed on the air window.

4. The unattended belt conveyor UAV inspection system according to claim 3, characterized in that The upper end of the pressing plate (20) is fixedly connected to a dust-proof layer (17). The other end of the dust-proof layer (17) is fixedly connected to the upper side wall of the dust-proof box. The dust-proof layer (17) is a corrugated rubber layer.

5. The unmanned belt conveyor UAV inspection system according to claim 4, wherein, A groove matching with the support legs of the inspection UAV is formed in the upper part of the support seat (14). A shock-absorbing layer (30) is arranged inside the groove. The shock-absorbing layer (30) is a rubber layer.

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