Maintenance device for longitudinal cracks of rubber conveying belt

By designing a longitudinal crack inspection device for rubber conveyor belts and adopting a crack visual recognition and repair structure, automated repair of rubber conveyor belts has been achieved, solving the problems of time-consuming and labor-intensive processes in existing technologies and improving inspection and repair efficiency.

CN121105440APending Publication Date: 2025-12-12BAODING HUAYUE RUBBER BELTS
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Patent Information

Application Number
CN202511288479.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-09-10
Publication Date
2025-12-12

AI Technical Summary

Technical Problem

The repair of longitudinal cracks in existing rubber conveyor belts relies on manual labor or large equipment, which is time-consuming and labor-intensive, and there is a lack of miniaturized, in-situ automated maintenance equipment.

Method used

A longitudinal crack repair device for rubber conveyor belts was designed, including a housing, a limit drive structure, a detection structure, and a repair structure. The device achieves automated repair through steps such as crack visual recognition, marking, dust recovery, surface polishing, and crack repair.

Benefits of technology

It enables in-situ automated repair of rubber conveyor belts, improving inspection efficiency and repair effectiveness, and reducing the time and cost of manual intervention and equipment replacement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The invention belongs to the technical field of rubber treatment, and particularly relates to a device for overhauling longitudinal cracks of a rubber conveyor belt, comprising: a housing movably arranged above the conveyor belt; the moving direction of the shell is opposite to the conveying direction of the conveying belt. The limiting driving structure is arranged on the shell, and the limiting driving structure is used for enabling the shell to move on the conveying belt; a detection structure and a repair structure are arranged in the shell, the detection structure is located at the front end of the shell in the moving direction, and the repair structure is located at the tail end of the shell in the moving direction; the detection structure comprises a gap visual recognition part and a marking part which are sequentially arranged in the moving direction of the shell, the gap visual recognition part is used for recognizing gaps in the conveying belt, and the marking part is used for marking the gaps; the repairing structure comprises a mark identifying part, a dust recycling part, a surface polishing part, a gap repairing part and a drying part which are sequentially arranged in the moving direction of the shell, and circulating airflow is formed by the dust recycling part and the drying part. In-situ maintenance of the conveying belt can be achieved.
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Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of rubber processing, and particularly relates to a rubber conveying belt longitudinal crack overhauling device. BACKGROUND

[0002] Rubber refers to a high-elastic polymer material with reversible deformation, and rubber products are widely used in various aspects of industry or life. The rubber conveying belt is a rubber and fiber, metal composite product used for bearing and conveying materials in the belt conveying belt, and is widely used in the fields of cement, coking, metallurgy, chemical industry, steel and the like with short conveying distance and small conveying capacity. Due to the impact and wear of some materials on the conveying belt, longitudinal cracks are easily formed. In order to not affect the work progress, some factories continue to use after the cracks are formed, which causes the conveying belt to be more damaged by tearing and leads to the shutdown of the production line.

[0003] The existing conveying belt repair relies on manual work, and the mechanical automatic repair needs to take down the conveying belt and install it on the automatic repair device, which is time-consuming and laborious. At present, there is a lack of a small-sized, in-situ automatic repair conveying belt overhauling device, and therefore, there is an urgent need for a rubber conveying belt longitudinal crack overhauling device to solve the problem. SUMMARY

[0004] The purpose of the present application is to provide a rubber conveying belt longitudinal crack overhauling device to solve the above problems.

[0005] To achieve the above purpose, the present application provides the following scheme:

[0006] A rubber conveying belt longitudinal crack overhauling device comprises:

[0007] A shell is movably arranged above the conveying belt; the moving direction of the shell is opposite to the conveying direction of the conveying belt;

[0008] A limiting driving structure is arranged on the shell, and is used for moving the shell on the conveying belt;

[0009] A detection structure and a repair structure are arranged in the shell, the detection structure is located at the front end of the moving direction of the shell, and the repair structure is located at the tail end of the moving direction of the shell;

[0010] The detection structure comprises a gap visual recognition part and a marking part arranged in sequence along the moving direction of the shell, the gap visual recognition part is used for recognizing the gap on the conveying belt, and the marking part is used for marking the gap;

[0011] The repair structure comprises a marking recognition part, a dust recovery part, a surface polishing part, a gap repair part and a drying part arranged in sequence along the moving direction of the shell, and the dust recovery part and the drying part form a circulating air flow.

[0012] Optionally, the inlet end and the outlet end of the shell are provided with a conveyor belt accommodating slot, and the conveyor belt is accommodated in the conveyor belt accommodating slot to limit the shell and the conveyor belt;

[0013] The limiting driving structure is arranged in the conveyor belt accommodating slot;

[0014] The limiting driving structure comprises four driving portions, and each end of the conveyor belt accommodating slot is provided with one driving portion.

[0015] Optionally, the driving portion comprises a guide wheel, the guide wheel is rotatably arranged in the conveyor belt accommodating slot, the guide wheel is in surface contact with the conveyor belt, the guide wheel is connected with the output shaft of the motor one, and the fixed end of the motor one is fixed on the shell.

[0016] Optionally, the detection structure further comprises:

[0017] a cross beam plate fixed in the shell, and the gap visual recognition portion and the marking portion are arranged on the cross beam plate;

[0018] The gap visual recognition portion comprises:

[0019] a first sliding table mechanism, a fixed end of which is fixed with the cross beam plate, and a movable end of the first sliding table mechanism is perpendicular to the moving direction of the conveyor belt;

[0020] a camera fixed on the movable end of the first sliding table mechanism;

[0021] a light bar fixed at the bottom of the cross beam plate, the light bar being used for illuminating the surface of the conveyor belt.

[0022] The first sliding table mechanism comprises a sliding table base, the sliding table base being fixed with the cross beam plate, a reciprocating screw being rotatably connected to the sliding table base, one end of the reciprocating screw being connected with the output shaft of the motor two, the fixed end of the motor two being fixed with the sliding table base, the reciprocating screw being threadedly connected with a sliding block one, and the sliding block one being slidingly connected with the sliding table base.

[0023] The sliding block one is fixed with the camera.

[0024] Optionally, the marking portion comprises:

[0025] a spray head fixed on the movable end of the first sliding table mechanism;

[0026] a pigment box fixed on the cross beam plate, the pigment box being communicated with the spray head.

[0027] The sliding block one is fixed with the spray head.

[0028] Optionally, the repair structure further comprises:

[0029] A second sliding table mechanism, a fixed end of which is fixedly connected to the inner wall of the shell, and a moving direction of a movable end of the second sliding table mechanism is perpendicular to a moving direction of the conveying belt;

[0030] A telescopic rod, a fixed end of which is fixedly connected to the movable end of the second sliding table mechanism, and a moving direction of a movable end of the telescopic rod is perpendicular to the surface of the conveying belt;

[0031] A platform, which is fixed to the movable end of the telescopic rod, and the mark identification part, the dust recovery part, the surface polishing part, the gap repairing part and the drying part are all arranged on the platform.

[0032] The second sliding table mechanism comprises a base, a ball screw in rotational cooperation with the base, a sliding block two in threaded cooperation with the ball screw, and a servo motor in transmission cooperation with the ball screw, a fixed end of the servo motor is fixedly connected to the base, an output shaft of the servo motor is connected to the ball screw, the sliding block two is in sliding cooperation with the base, and the sliding block two is fixedly connected to the fixed end of the telescopic rod.

[0033] Optionally, the mark identification part comprises a gray scale sensor, the gray scale sensor is fixedly connected to the platform, the spray head sprays white pigment marks in the gap, and the gray scale sensor is used for identifying the white pigment.

[0034] Optionally, the surface polishing part comprises a polishing roller mechanism, a fixed end of the polishing roller mechanism is fixedly connected to the platform, and a movable end of the polishing roller mechanism is used for polishing the surface of the conveying belt.

[0035] The polishing roller mechanism comprises:

[0036] A compression roller shell, which is fixedly connected to the platform;

[0037] A compression roller, which is arranged in the compression roller shell in vertical lifting through a lifting part, and the compression roller is in rotational cooperation with the lifting part;

[0038] The lifting part comprises:

[0039] A sliding block, which is in sliding cooperation with the compression roller shell through a sliding groove formed in the inner wall of the compression roller shell, one end of the sliding block is rotationally connected to the compression roller, any end of the compression roller is connected to an output shaft of a third motor, and a fixed end of the third motor is fixedly connected to the corresponding sliding block;

[0040] A slide rod is fixedly connected to the top of the sliding block, a guide block is in sliding cooperation with the slide rod, and the guide block is fixedly connected to the inner wall of the compression roller shell;

[0041] A spring is arranged between the guide block and the sliding block, one end of the spring is fixedly connected with the guide block, and the other end of the spring is fixedly connected with the sliding block.

[0042] A top sheet is fixedly connected to the top end of the sliding rod, the top sheet is movably arranged in the compression roller shell, the top sheet is in contact with a contact sensor, and the contact sensor is fixed in the compression roller shell.

[0043] Optionally, the gap repairing part comprises:

[0044] A U-shaped nail air nail gun located at the front end of the moving direction of the shell and a rubber conveyor belt repairing agent spray head located at the rear end of the moving direction of the shell;

[0045] The U-shaped nail air nail gun is fixed on the platform.

[0046] The rubber conveyor belt repairing agent spray head is fixed on the platform, the rubber conveyor belt repairing agent spray head is communicated with a repairing agent storage tank, and the repairing agent storage tank is fixed on the platform.

[0047] Optionally, the dust recycling part comprises:

[0048] A dust suction port fixed at the bottom of the platform, the air inlet end of the dust suction port is arranged towards the conveyor belt.

[0049] A dust collecting box fixed on the platform, the bottom of the dust collecting box is communicated with the dust suction port through a dust collecting bag.

[0050] A fan, a fixed end of the fan is fixedly connected to the dust collecting box, and the air outlet end of the fan is located in the dust collecting box.

[0051] The drying part comprises:

[0052] A heating box fixed on the platform, the air inlet end of the heating box is communicated with the air outlet end of the dust collecting box, and heating wires are fixed in the heating box.

[0053] A hot air spray head fixed at the bottom of the platform, the air outlet end of the hot air spray head is arranged towards the conveyor belt.

[0054] The air inlet end of the dust suction port and the air outlet end of the hot air spray head are oppositely arranged, and the circulating air flow is formed between the dust suction port, the dust collecting box, the heating box and the hot air spray head.

[0055] Compared with the prior art, the present application has the following advantages and technical effects:

[0056] In use, by placing the device on the conveying belt, the shell is erected on the conveying belt and is limitedly matched with the conveying belt through the limiting driving structure. At this time, the conveying belt moves, the limiting driving structure drives the shell to move in the opposite direction of the moving direction of the conveying belt, so that the shell is relatively stationary with the conveying belt. When the conveying belt and the shell are relatively moved, the surface of the conveying belt will pass through the detection structure and the repair structure in turn. The gap visual identification part and the mark part of the detection structure mark the gap, and the mark identification part, the dust recovery part, the surface polishing part, the gap repair part and the drying part of the repair structure identify the mark and repair the gap, so that the conveying belt can be repaired in situ.

[0057] By adjusting the relative moving speed of the conveying belt and the shell, the speed of the conveying belt section without detected gap can be accelerated, and the speed of the conveying belt section with detected gap can be slowed down or relatively stationary for repair, so that the repair condition is met, and the detection efficiency is improved. BRIEF DESCRIPTION OF DRAWINGS

[0058] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor under the premise of the drawings:

[0059] Fig. 1 It is a structural schematic diagram of the present application;

[0060] Fig. 2 It is a left view of the structure of the present application;

[0061] Fig. 3 It is a structural schematic diagram of the first sliding table mechanism of the present application;

[0062] Fig. 4 It is a structural schematic diagram of the polishing roller mechanism of the present application;

[0063] The components include: 1. Outer shell; 2. Crossbeam plate; 3. First slide mechanism; 4. Supplemental lighting strip; 5. Paint box; 6. Camera; 7. Spray nozzle; 8. Conveyor belt clearance groove; 9. Guide wheel; 10. Second slide mechanism; 11. Telescopic rod; 12. Platform; 13. Dust collection box; 14. Fan; 15. Dust collection bag; 16. Grayscale sensor; 17. Suction port; 18. Grinding roller mechanism; 19. U-shaped nail gun; 2 0. Rubber conveyor belt repair agent nozzle; 21. Hot air nozzle; 22. Heating box; 23. Motor 1; 301. Slide table base; 302. Motor 2; 303. Reciprocating screw; 1801. Pressure roller shell; 1802. Slider; 1803. Slide rod; 1804. Spring; 1805. Top plate; 1806. Contact sensor; 1807. Motor 3; 1808. Pressure roller; 1809. Guide block. Detailed Implementation

[0064] The technical solutions of the 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.

[0065] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0066] Reference Figs. 1 to 4 This invention discloses a repair device for longitudinal cracks in rubber conveyor belts, comprising:

[0067] The outer casing 1 is movably positioned above the conveyor belt; the direction of movement of the outer casing 1 is opposite to the conveying direction of the conveyor belt.

[0068] A limit drive structure is provided on the housing 1, and the limit drive structure is used for the housing 1 to move on the conveyor belt;

[0069] A detection structure and a repair structure are provided inside the outer casing 1. The detection structure is located at the front end of the outer casing 1 in the direction of movement, and the repair structure is located at the rear end of the outer casing 1 in the direction of movement.

[0070] The detection structure includes a gap visual recognition unit and a marking unit arranged sequentially along the moving direction of the outer shell 1. The gap visual recognition unit is used to identify gaps on the conveyor belt, and the marking unit is used to mark the gaps.

[0071] The repair structure includes a marking and identification section, a dust collection section, a surface polishing section, a gap repair section, and a drying section arranged sequentially along the moving direction of the outer shell 1. The dust collection section and the drying section form a circulating airflow.

[0072] In use, the device is placed on the conveyor belt, and the outer casing 1 is mounted on the conveyor belt and engaged with the conveyor belt through a limiting drive structure. At this time, the conveyor belt moves, and the limiting drive structure drives the outer casing 1 to move in the opposite direction of the conveyor belt's movement, so that the outer casing 1 and the conveyor belt are relatively stationary. When the conveyor belt and the outer casing 1 move relative to each other, the surface of the conveyor belt will pass through the detection structure and the repair structure in sequence. The gaps are marked by the gap visual recognition part and the marking part of the detection structure, and the marking recognition part, dust recovery part, surface grinding part, gap repair part and drying part of the repair structure are used to identify the markings and repair the gaps, so as to realize the in-situ inspection and maintenance of the conveyor belt.

[0073] By adjusting the relative movement speed of the conveyor belt and the outer casing 1, the conveyor belt section where no gaps were detected can be accelerated to match the gap repair time, while the conveyor belt section where gaps were detected can be decelerated or relatively stationary for repair. This satisfies the repair conditions and also improves the detection efficiency.

[0074] As an optional implementation, both the inlet and outlet ends of the outer casing 1 are provided with conveyor belt clearance grooves 8, and the conveyor belt enters the conveyor belt clearance grooves 8 to make the outer casing 1 and the conveyor belt limit the fit.

[0075] The limit drive structure is installed inside the conveyor belt clearance groove 8;

[0076] The limit drive structure includes four drive units, with one drive unit set at each end of the conveyor belt clearance groove 8.

[0077] As an optional implementation, the drive unit includes a guide wheel 9, which is rotatably disposed in the conveyor belt relief groove 8. The guide wheel 9 is in contact with the surface of the conveyor belt, and the shaft of the guide wheel 9 is connected to the output shaft of the motor 23. The fixed end of the motor 23 is fixed on the housing 1.

[0078] The outer casing 1 is limited to moving by entering the conveyor belt clearance groove 8 through the conveyor belt. At the same time, the guide wheel 9 driven by motor 23 can move on the conveyor belt to achieve the effect of the outer casing 1 being relatively stationary with respect to the conveyor belt.

[0079] By adjusting the speed of motor 23, the outer casing 1 can switch between moving and stationary states on the conveyor belt while the conveyor belt is running continuously.

[0080] As an optional implementation, the detection structure further includes:

[0081] The crossbeam plate 2 is fixed inside the outer casing 1; the gap visual recognition part and the marking part are set on the crossbeam plate 2;

[0082] The gap vision recognition unit includes:

[0083] The first slide mechanism 3 has its fixed end fixed to the crossbeam plate 2, and the moving direction of the movable end of the first slide mechanism 3 is perpendicular to the moving direction of the conveyor belt.

[0084] Camera 6 is fixed to the movable end of the first sliding mechanism 3;

[0085] The supplementary light strip 4 is fixed to the bottom of the crossbeam plate 2 and is used for surface lighting of the conveyor belt.

[0086] The supplementary light strip 4 is used for surface illumination of the conveyor belt, which facilitates the camera 6 to acquire images of the conveyor belt surface and facilitates the camera 6 to identify gaps on the conveyor belt surface by combining with a visual recognition algorithm. The camera 6, the visual recognition algorithm, and the visual recognition module equipped with the visual recognition algorithm can all use existing technologies.

[0087] As an additional implementation, the first slide mechanism 3 includes a slide base 301, which is fixed to the crossbeam plate 2. A reciprocating screw 303 is rotatably connected to the slide base 301. One end of the reciprocating screw 303 is axially connected to the output shaft of the second motor 302. The fixed end of the second motor 302 is fixed to the slide base 301. The reciprocating screw 303 is threadedly engaged with a slider, which is in sliding engagement with the slide base 301.

[0088] Slider 1 is fixedly connected to camera 6.

[0089] As an optional implementation, the marking part includes:

[0090] The nozzle 7 is fixed to the movable end of the first slide mechanism 3;

[0091] The paint box 5 is fixed on the crossbeam plate 2, and the paint box 5 is connected to the nozzle 7.

[0092] The slider is fixedly connected to the nozzle 7.

[0093] In use, motor 2 302 drives reciprocating screw 303 to rotate, causing slider 1 to slide back and forth on slide base 301, thereby driving camera 6 and nozzle 7 to scan the surface of conveyor belt back and forth. Through the coordination of guide wheel 9 and motor 23 with the moving speed of conveyor belt, all-round scanning can be achieved. After identifying gaps, the nozzle 7 sprays pigment to mark the gaps.

[0094] As an optional implementation, the repair structure also includes:

[0095] The second slide mechanism 10 has its fixed end fixedly connected to the inner wall of the outer shell 1, and the moving direction of the movable end of the second slide mechanism 10 is perpendicular to the moving direction of the conveyor belt.

[0096] The fixed end of the telescopic rod 11 is fixedly connected to the movable end of the second slide mechanism 10, and the moving direction of the movable end of the telescopic rod 11 is perpendicular to the surface of the conveyor belt.

[0097] Platform 12 is fixed to the movable end of telescopic rod 11. Marking and identification section, dust collection section, surface polishing section, gap repair section and drying section are all set on platform 12.

[0098] The second slide mechanism 10 includes a base, a ball screw that rotates with the base, a second slider that is threaded with the ball screw, and a servo motor that drives the ball screw. The fixed end of the servo motor is fixedly connected to the base, the output shaft of the servo motor is connected to the ball screw shaft, the second slider is slidably connected to the base, and the second slider is fixedly connected to the fixed end of the telescopic rod 11.

[0099] As an optional implementation, the marking recognition unit includes a grayscale sensor 16, which is fixed on the platform 12. The nozzle 7 sprays white pigment to mark the gaps, and the grayscale sensor 16 is used to identify the white pigment.

[0100] In use, the grayscale sensor 16 can identify the white pigment sprayed from the nozzle 7. The servo motor of the second slide mechanism 10 drives the ball screw to reciprocate and adjust the position of the second slider. When the grayscale sensor 16 detects a change in the grayscale of the conveyor belt, it indicates that the gap area has been reached, and then the gap is repaired.

[0101] The grayscale sensor 16 can continuously track the white pigment. That is, when it goes beyond the boundary of the white pigment, it moves to the other boundary of the white pigment by rotating the ball screw in the opposite direction. When it reaches the other boundary, it rotates the ball screw in the opposite direction again.

[0102] As an optional implementation, the surface polishing section includes a polishing roller mechanism 18, the fixed end of which is fixed to the platform 12, and the movable end of which is used to polish the surface of the conveyor belt.

[0103] As an additional implementation, the grinding roller mechanism 18 includes:

[0104] The outer shell of the pressure roller 1801 is fixedly connected to the platform 12;

[0105] The pressure roller 1808 is vertically lifted and installed inside the pressure roller housing 1801 via a lifting part, and the pressure roller 1808 is rotatably engaged with the lifting part.

[0106] The lifting unit includes:

[0107] The slider 1802 slides with the pressure roller housing 1801 through a groove opened in the inner wall of the pressure roller housing 1801. The slider 1802 is rotatably connected to one end of the pressure roller 1808. The output shaft of the motor 1807 is axially connected to any end of the pressure roller 1808. The fixed end of the motor 1807 is fixedly connected to the corresponding slider 1802.

[0108] A slide rod 1803 is fixedly connected to the top of the slider 1802. A guide block 1809 is slidably fitted to the slide rod 1803. The guide block 1809 is fixedly connected to the inner wall of the pressure roller housing 1801.

[0109] A spring 1804 is provided between the guide block 1809 and the slider 1802. One end of the spring 1804 is fixedly connected to the guide block 1809, and the other end of the spring 1804 is fixedly connected to the slider 1802.

[0110] A top plate 1805 is fixedly connected to the top of the slide bar 1803. The top plate 1805 is movably disposed inside the pressure roller housing 1801. The top plate 1805 contacts a contact sensor 1806, which is fixed inside the pressure roller housing 1801.

[0111] The platform 12 can be lowered by the telescopic rod 11, which in turn causes the pressure roller 1808 to press down onto the surface of the conveyor belt. The motor 1807 drives the pressure roller 1808 to rotate and polish the surface of the conveyor belt. The surface of the pressure roller 1808 is made of frosted material. When the telescopic rod 11 extends, the slider 1802 drives the top plate 1805 to rise and contact the contact sensor 1806. At this time, the contact sensor 1806 provides feedback to stop the telescopic rod 11 from extending. The spring 1804 helps the pressure roller 1808 to quickly return to its original position after being raised.

[0112] As an optional implementation, the gap repair unit includes:

[0113] The U-shaped nail gun 19 is located at the front end of the outer casing 1 in the direction of movement, and the rubber conveyor belt repair agent nozzle 20 is located at the rear end of the outer casing 1 in the direction of movement.

[0114] The U-shaped nail gun 19 is fixed on the platform 12;

[0115] The rubber conveyor belt repair agent nozzle 20 is fixed on the platform 12, and the rubber conveyor belt repair agent nozzle 20 is connected to a repair agent storage tank, which is fixed on the platform 12.

[0116] When in use, the U-shaped nail gun 19 fires U-shaped nails that drive into both sides of the gap in the conveyor belt. The pulling force of the U-shaped nails can be used to prevent the gap from cracking further. At the same time, the rubber conveyor belt repair agent nozzle 20 sprays repair material to cover the U-shaped nails and the gap, filling the gap and smoothing it out, thus completing the repair.

[0117] As an optional implementation, the dust recovery unit includes:

[0118] The dust suction port 17 is fixed at the bottom of the platform 12, and the air inlet of the dust suction port 17 is set towards the conveyor belt;

[0119] The dust collection box 13 is fixed on the platform 12, and the bottom of the dust collection box 13 is connected to the suction port 17 through the dust collection bag 15.

[0120] The fan 14 is fixedly connected to the dust collection box 13 at its fixed end, and the air outlet of the fan 14 is located inside the dust collection box 13.

[0121] The drying section includes:

[0122] Heating box 22 is fixed on platform 12. The air inlet of heating box 22 is connected to the air outlet of dust collection box 13. Heating wire is fixed inside heating box 22.

[0123] Hot air nozzle 21 is fixed at the bottom of platform 12, with the air outlet of hot air nozzle 21 facing the conveyor belt;

[0124] The air inlet of the dust suction port 17 is positioned opposite to the air outlet of the hot air nozzle 21, and a circulating airflow is formed between the dust suction port 17, the dust collection box 13, the heating box 22 and the hot air nozzle 21.

[0125] During use, the blower 14 ventilates the dust collection box 13 and blows air towards the heating box 22. Due to Bernoulli's principle, when the blower 14 blows air towards the heating box 22, a negative pressure is formed in the suction port 17, causing the suction port 17 to act as a suction end to suck the dust from the conveyor belt surface ground off by the grinding roller mechanism 18 into the dust collection bag 15 for collection. At the same time, the air entering the heating box 22 is heated and blown out by the hot air nozzle 21. The hot air blown out cures the repair agent. At the same time, a circulating airflow is formed between the suction port 17, the dust collection box 13, the heating box 22, and the hot air nozzle 21. The grinding roller mechanism 18, the U-shaped nail gun 19, and the rubber conveyor belt repair agent nozzle 20 are located between the suction port 17 and the hot air nozzle 21. The circulating airflow has a cleaning effect on the rubber conveyor belt repair agent nozzle 20 and the grinding roller mechanism 18 while curing the repair agent, thus extending the maintenance cycle.

[0126] In the description of this invention, it should be understood that the terms "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this invention, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0127] The embodiments described above are merely preferred embodiments of the present invention and are not intended to limit the scope of the present invention. Various modifications and improvements made by those skilled in the art to the technical solutions of the present invention without departing from the spirit of the present invention should fall within the protection scope defined by the claims of the present invention.

Claims

1. A repair device for longitudinal cracks in a rubber conveyor belt, characterized in that, include: The outer casing (1) is movably disposed above the conveyor belt; the direction of movement of the outer casing (1) is opposite to the conveying direction of the conveyor belt. A limiting drive structure is provided on the housing (1), and the limiting drive structure is used for the housing (1) to move on the conveyor belt; The outer shell (1) is provided with a detection structure and a repair structure. The detection structure is located at the front end of the outer shell (1) in the direction of movement, and the repair structure is located at the rear end of the outer shell (1) in the direction of movement. The detection structure includes a gap visual recognition part and a marking part arranged sequentially along the moving direction of the outer shell (1). The gap visual recognition part is used to identify gaps on the conveyor belt, and the marking part is used to mark the gaps. The repair structure includes a marking and identification section, a dust collection section, a surface polishing section, a gap repair section and a drying section arranged sequentially along the moving direction of the outer shell (1), wherein the dust collection section and the drying section form a circulating airflow.

2. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 1, characterized in that: The inlet and outlet ends of the outer shell (1) are provided with conveyor belt relief grooves (8), and the conveyor belt enters the conveyor belt relief grooves (8) to make the outer shell (1) and the conveyor belt fit together in a limiting manner. The limiting drive structure is disposed in the conveyor belt clearance groove (8); The limiting drive structure includes four drive units, with one drive unit provided at each end of each conveyor belt clearance groove (8).

3. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 2, characterized in that: The drive unit includes a guide wheel (9), which is rotatably disposed in the conveyor belt relief groove (8). The guide wheel (9) is in contact with the surface of the conveyor belt. The guide wheel (9) is connected to the output shaft of a motor (23), and the fixed end of the motor (23) is fixed on the outer casing (1).

4. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 1, characterized in that, The detection structure also includes: A crossbeam plate (2) is fixed inside the outer casing (1); the gap visual recognition part and the marking part are disposed on the crossbeam plate (2); The slit vision recognition unit includes: The first slide mechanism (3) has a fixed end fixed to the crossbeam plate (2), and the moving direction of the movable end of the first slide mechanism (3) is perpendicular to the moving direction of the conveyor belt. The camera (6) is fixed to the movable end of the first sliding mechanism (3); A supplementary light strip (4) is fixed at the bottom of the crossbeam plate (2) and is used for surface lighting of the conveyor belt.

5. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 4, characterized in that, The marking portion includes: The nozzle (7) is fixed to the movable end of the first slide mechanism (3); The pigment box (5) is fixed on the crossbeam plate (2) and is connected to the nozzle (7).

6. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 5, characterized in that, The repair structure also includes: The second slide mechanism (10) has a fixed end that is fixed to the inner wall of the outer shell (1), and the moving direction of the moving end of the second slide mechanism (10) is perpendicular to the moving direction of the conveyor belt. The telescopic rod (11) has its fixed end fixedly connected to the movable end of the second slide mechanism (10), and the moving direction of the movable end of the telescopic rod (11) is perpendicular to the surface of the conveyor belt. Platform (12) is fixed to the movable end of telescopic rod (11), and the marking identification part, the dust collection part, the surface polishing part, the gap repair part and the drying part are all arranged on the platform (12).

7. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 6, characterized in that, The marking recognition unit includes a grayscale sensor (16), which is fixed on the platform (12). The nozzle (7) sprays out white pigment to mark the gaps, and the grayscale sensor (16) is used to identify the white pigment.

8. The repair device for longitudinal cracks in a rubber conveyor belt according to claim 6, characterized in that, The surface polishing section includes a polishing roller mechanism (18), the fixed end of which is fixed to the platform (12), and the movable end of which is used to polish the surface of the conveyor belt.

9. A repair device for longitudinal cracks in a rubber conveyor belt according to claim 6, characterized in that, The gap repair part includes: A U-shaped nail gun (19) located at the front end of the moving direction of the housing (1) and a rubber conveyor belt repair nozzle (20) located at the rear end of the moving direction of the housing (1); The U-shaped nail gun (19) is fixed on the platform (12); The rubber conveyor belt repair agent nozzle (20) is fixed on the platform (12), and the rubber conveyor belt repair agent nozzle (20) is connected to a repair agent storage tank, which is fixed on the platform (12).

10. A repair device for longitudinal cracks in a rubber conveyor belt according to claim 6, characterized in that, The dust recovery unit includes: A dust suction port (17) is fixed at the bottom of the platform (12), with the air inlet of the dust suction port (17) facing the conveyor belt; A dust collection box (13) is fixed on the platform (12), and the bottom of the dust collection box (13) is connected to the suction port (17) through a dust collection bag (15); The fan (14) is fixedly connected to the dust collection box (13) at its fixed end, and the air outlet of the fan (14) is located inside the dust collection box (13); The drying section includes: A heating box (22) is fixed on the platform (12). The air inlet of the heating box (22) is connected to the air outlet of the dust collection box (13). A heating wire is fixed inside the heating box (22). A hot air nozzle (21) is fixed at the bottom of the platform (12), with the air outlet of the hot air nozzle (21) facing the conveyor belt; The air inlet of the dust suction port (17) is positioned opposite to the air outlet of the hot air nozzle (21), and a circulating airflow is formed between the dust suction port (17), the dust collection box (13), the heating box (22), and the hot air nozzle (21).