Belt longitudinal tearing laser detection device of belt conveyor and use method

Abstract

The invention discloses a belt longitudinal tearing laser detection device of a belt conveyor and a using method thereof, and relates to the technical field of belt tearing detection.The belt longitudinal tearing laser detection device comprises a fixing support, a laser module and a controller, the controller is installed on the front side of the outer wall of the fixing support, and the laser module is installed on the upper side of the outer wall of the fixing support; the laser module is connected with the controller through a signal line and comprises a laser transmitter, a visual sensor, a sliding groove, a sliding block, a laser motor and an angle assembly. By installing the laser module, the function of multi-directional free detection is achieved, the problems that detection dead angles exist, the detection efficiency is low and the detection precision is poor are solved, the tearing condition existing on the surface of a belt can be dynamically recognized, the belt can be detected at multiple angles, the detection precision of the device is improved, and manual secondary inspection is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of belt tear detection, and in particular to a laser detection device for longitudinal tearing of a belt conveyor and a method for using the device. Background Art

[0002] Belt conveyors are core logistics equipment in mines, thermal power plants, ports, and the metallurgical industry. They transport bulk materials such as ore and coal, and their continuous operation requires extremely high reliability. A longitudinal tear in the belt not only disrupts production but also poses a safety risk.

[0003] Fixed detection devices are usually deployed in the middle of the bottom surface of the belt and cannot cover the edge areas on both sides. When tears occur at the edge of the belt or the undulations of the joint, it is difficult to identify. Fixed detection devices cannot adaptively adjust the angle, so when facing belts with complex shapes, they are prone to forming detection blind spots.

[0004] Patent CN113320924B discloses a belt longitudinal tear detection device based on a single-line laser radar. The above patent realizes the timely detection of belt tear sites and issues warnings, avoiding further expansion of the tear or even belt breakage, thereby reducing economic losses.

[0005] The above patent fixes the laser radar below the non-load-bearing surface of the belt, emits laser light obliquely upward along the field of view perpendicular to the sliding direction of the belt, and records the total time and scanning angle from the emission of the pulse to its reflection by the object being measured during the uniform sliding of the belt. The instantaneous contour coordinates of the bottom surface of the belt are calculated in combination with the laser propagation speed, and the position of the above contour information along the sliding direction of the belt is calculated at equal time intervals in combination with the sliding speed of the belt, generating a continuous three-dimensional point cloud of the non-load-bearing bottom surface of the belt, and constructing a three-dimensional model of the bottom surface of the belt. By judging the smoothness anomaly of the three-dimensional model of the bottom surface of the belt, the torn part of the belt can be detected. There is room for optimization in the belt detection range.

[0006] To this end, the present application proposes a multi-directional free detection belt conveyor belt longitudinal tear laser detection device and a method of use. Summary of the Invention

[0007] The object of the present invention is to provide a laser detection device for longitudinal tearing of a belt conveyor and a method for using the same, so as to solve the technical problem of limitations in the belt detection range raised in the above-mentioned background technology.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a laser detection device for longitudinal tearing of a belt conveyor, comprising a fixed bracket, a laser module, and a controller, wherein the controller is mounted on the front side of the outer wall of the fixed bracket, the laser module is mounted on the upper side of the outer wall of the fixed bracket, and the laser module is connected to the controller via a signal line;

[0009] The laser module includes: a laser emitter, a visual sensor, a slide, a slider, a laser motor and an angle component;

[0010] A slide groove is installed on the upper side of the outer wall of the fixed bracket, a slider is installed in the middle of the inner wall of the slide groove, an angle assembly is installed on the upper side of the outer wall of the slider, the slider and the angle assembly are connected to the laser motor through a connecting shaft, a laser emitter is installed on the upper side of the outer wall of the angle assembly, a visual sensor is installed on the left side of the outer wall of the laser emitter, and a laser motor is installed on the lower side of the outer wall of the fixed bracket. The laser emitter, visual sensor and laser motor are connected to the controller through signal lines.

[0011] Preferably, the angle assembly includes: a first telescopic shaft, a second telescopic shaft, a first rotating shaft, a second rotating shaft and an angle sensor;

[0012] A first telescopic shaft is installed on the upper side of the outer wall of the slider, a first rotating shaft is installed on the upper side of the outer wall of the first telescopic shaft, a second telescopic shaft is installed on the upper side of the outer wall of the rotating shaft, and a second rotating shaft is installed on the front side of the outer wall of the second telescopic shaft. The first telescopic shaft, the second telescopic shaft, the first rotating shaft and the second rotating shaft are connected to the laser motor through a connecting shaft, and angle sensors are installed at the connection between the first rotating shaft and the second rotating shaft and the second telescopic shaft, and the angle sensors are connected to the controller through a signal line.

[0013] Preferably, a dust removal module is installed on the left side of the outer wall of the angle component, and the dust removal module includes: a storage box, a suction component, a first connecting pipe, a dust isolation plate and a dust removal motor;

[0014] A storage box is installed on the left side of the outer wall of the slide, a dust shield is installed on the upper side of the outer wall of the storage box, a suction component is installed on the lower side of the outer wall of the dust shield, the suction component is connected to the storage box through a first connecting pipe, a dust removal motor is installed on the rear side of the outer wall of the laser motor, the suction component is connected to the dust removal motor through a connecting shaft, and the dust removal motor is connected to the controller through a signal line.

[0015] Preferably, a compensation module is installed on the upper side of the outer wall of the second telescopic shaft, and the compensation module includes: a water tank, a nozzle, an atomization component, a recovery pipe, a recovery component, a second connecting pipe and a humidity sensor;

[0016] A water tank is installed on the rear side of the outer wall of the storage box, and a recovery assembly is installed in the middle of the inner wall of the storage box. The water tank is connected to the recovery assembly through a recovery pipe. A nozzle is installed on the upper side of the outer wall of the second telescopic shaft, and an atomization assembly is installed on the upper side of the outer wall of the water tank. The atomization assembly is connected to the nozzle through a second connecting pipe, and the atomization assembly is connected to the dust removal motor through a connecting shaft. A humidity sensor is installed on the front side of the outer wall of the nozzle, and the humidity sensor is connected to the controller through a signal line.

[0017] Preferably, connection modules are installed on the front and rear sides of the outer wall of the fixing bracket, and the connection modules include: a clamping block, a locker, a vibration sensor and a vibrator;

[0018] Clamps are installed on the front and rear sides of the outer wall of the fixed bracket, a lock is installed on the upper side of the outer wall of the clamp, a vibration sensor is installed on the left side of the outer wall of the clamp, and a vibrator is installed at the joint between the inner wall of the fixed bracket and the slide groove. The vibration sensor and the vibrator are connected to the controller through a signal line.

[0019] Preferably, the suction component includes: a fan, a filter, a third telescopic shaft and an infrared sensor;

[0020] A filter is installed on the lower side of the outer wall of the dust screen, a third telescopic shaft is installed on the lower side of the outer wall of the dust screen, a fan is installed on the left side of the outer wall of the filter, the fan and the third telescopic shaft are connected to the dust removal motor through a connecting shaft, and an infrared sensor is installed on the upper side of the outer wall of the dust screen, and the infrared sensor is connected to the controller through a signal line.

[0021] Preferably, the atomizing assembly comprises: an atomizing chamber, a filtering chamber, a piston, a push rod, a third connecting pipe and a connecting valve;

[0022] An atomizing chamber is installed on the upper side of the outer wall of the water tank, the atomizing chamber is connected to the water tank through a connecting valve, the connecting valve is connected to the controller through a signal line, a filter chamber is installed on the rear side of the outer wall of the atomizing chamber, the atomizing chamber is connected to the filter chamber through a third connecting pipe, a piston is installed in the middle of the inner wall of the atomizing chamber, a push rod is installed on the front side of the outer wall of the piston, and the push rod is connected to the dust removal motor through a connecting shaft.

[0023] Preferably, the recovery assembly includes: a filter cloth, a vacuum pump, a flushing head, a fourth connecting pipe, a fifth connecting pipe and a vacuum box;

[0024] A filter cloth is installed in the middle of the inner wall of the storage box, a vacuum box is installed on the lower side of the outer wall of the filter cloth, the vacuum box is connected to the water tank through the recovery pipe, a flushing head is installed on the upper side of the outer wall of the filter cloth, the flushing head is connected to the water tank through the fourth connecting pipe, a vacuum pump is installed in the middle of the outer wall of the storage box, the vacuum pump is connected to the vacuum box through the fifth connecting pipe, and the vacuum pump is connected to the dust removal motor through the connecting shaft.

[0025] Preferably, the method of use is:

[0026] S1: The operator extends the fixed bracket into the belt conveyor and fixes the clamp to the belt conveyor by mechanically tightening the lock. This allows the vibration sensor to contact the belt conveyor, obtains vibration information during the operation of the belt conveyor, and transmits it to the controller. The controller controls the vibrator to offset the reverse vibration based on the obtained belt conveyor vibration information.

[0027] S2: The controller controls the dust removal motor to drive the third telescopic shaft to adjust the height of the dust isolation plate so that the dust isolation plate contacts the belt conveyor. The controller controls the suction component to remove dust from the belt.

[0028] S3: The controller controls the compensation module to compensate for the ambient humidity based on the ambient humidity information transmitted by the humidity sensor.

[0029] S4: The controller controls the angle component to adjust the angles of the laser emitter and the visual sensor to detect the belt of the belt conveyor.

[0030] Preferably, the S4 is specifically:

[0031] S41: The controller controls the laser motor to drive the slider to move in the slide groove;

[0032] S42: Control the laser transmitter to emit laser light to the belt, and the visual sensor collects laser information on the belt and transmits it to the controller;

[0033] S43: The controller controls the laser motor to drive the angle assembly, and adjusts the orientation of the laser emitter and the visual sensor by adjusting the first telescopic axis, the first rotating axis, and the second rotating axis to detect the bottom surface of the belt conveyor;

[0034] S44: After completing the inspection of the belt bottom surface, the controller controls the angle assembly to retract, and then controls the laser motor to drive the slider to move in the slideway, so as to move the angle assembly out of the belt bottom surface, so that the angle assembly is located at the front side of the belt conveyor;

[0035] S45: The controller controls the laser motor to drive the first telescopic shaft to raise the laser emitter and the visual sensor to above the belt;

[0036] S46: The controller controls the laser motor to drive the second telescopic shaft, the first rotating shaft and the second rotating shaft to adjust the orientation of the laser emitter and the visual sensor, detect the upper surface of the belt, and transmit the detection results to the controller.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The present invention, by installing a laser module, realizes the function of multi-directional free detection, solves the problems of detection blind spots, low detection efficiency and poor detection accuracy, can dynamically identify the tearing on the belt surface, can detect the belt from multiple angles, improves the detection accuracy of the device, and avoids manual secondary inspections;

[0039] 2. The present invention achieves dual dust removal functions by installing a dust removal module, solving the problems of air dust interfering with laser irradiation and dirt on the belt surface affecting detection accuracy. It can remove dirt on the bottom of the belt and dust in the air, improving the accuracy of laser detection and extending the service life of the device.

[0040] 3. The present invention, by installing a compensation module, realizes the function of compensating for ambient humidity, solves the problem that ambient humidity affects detection accuracy and wastes resources, can eliminate detection errors caused by ambient humidity, and can recover moisture in wet dust for water replenishment, thereby reducing resource waste, improving the detection accuracy of the device, and extending the service life of the device;

[0041] 4. The present invention realizes the function of rapid installation and removal of the device by installing a connection module, solves the problem of needing to modify the belt conveyor and the problem of being unable to ignore the impact of the belt conveyor vibration on the detection accuracy. The device can be quickly installed and removed by mechanical locking without the need to modify the belt conveyor, and the detection accuracy of the device is improved by vibration offset. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 It is a front view structural schematic diagram of the present invention;

[0043] Figure 2 It is a schematic diagram of the front structure of the present invention;

[0044] Figure 3 This is a schematic diagram of the angle assembly structure of the present invention;

[0045] Figure 4 This is a schematic structural diagram of the dust removal module of the present invention;

[0046] Figure 5 This is a schematic diagram of the compensation module structure of the present invention;

[0047] Figure 6 It is a schematic diagram of the structure of the suction component of the present invention;

[0048] Figure 7 This is a schematic structural diagram of the atomization assembly of the present invention;

[0049] Figure 8 This is a schematic diagram of the recycling component structure of the present invention.

[0050] In the figure: 1. Fixed bracket; 2. Controller; 3. Laser emitter; 4. Vision sensor; 5. Slide; 6. Slider; 7. Laser motor; 8. First telescopic axis; 9. Second telescopic axis; 10. First rotation axis; 11. Second rotation axis; 12. Angle sensor; 13. Storage box; 14. First connecting pipe; 15. Dust shield; 16. Dust removal motor; 17. Water tank; 18. Nozzle; 19. Recovery pipe; 20. Second connecting pipe; 21 , humidity sensor; 22, clamping block; 23, lock; 24, vibration sensor; 25, vibrator; 26, fan; 27, filter; 28, third telescopic axis; 29, infrared sensor; 30, atomization chamber; 31, filter chamber; 32, piston; 33, push rod; 34, third connecting pipe; 35, connecting valve; 36, filter cloth; 37, vacuum pump; 38, flushing head; 39, fourth connecting pipe; 40, fifth connecting pipe; 41, vacuum box. DETAILED DESCRIPTION

[0051] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0052] In the description of the present invention, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," "the other end," and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0053] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "provided with," "connected," etc., should be understood in a broad sense. For example, "connected" may refer to a fixed connection, a detachable connection, or an integral connection; it may refer to a mechanical connection or an electrical connection; it may refer to a direct connection or an indirect connection through an intermediate medium; it may refer to internal communication between two components. Those skilled in the art will be able to understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] Example 1: Please refer to Figure 1 、 Figure 2 and Figure 3A belt conveyor belt longitudinal tear laser detection device includes a fixed bracket 1, a laser module and a controller 2. The controller 2 is installed on the front side of the outer wall of the fixed bracket 1, and the laser module is installed on the upper side of the outer wall of the fixed bracket 1. The laser module is connected to the controller 2 through a signal line.

[0055] The laser module includes: a laser emitter 3, a visual sensor 4, a slide 5, a slider 6, a laser motor 7 and an angle component;

[0056] A slide groove 5 is installed on the upper side of the outer wall of the fixed bracket 1, a slider 6 is installed in the middle of the inner wall of the slide groove 5, an angle assembly is installed on the upper side of the outer wall of the slider 6, the slider 6 and the angle assembly are connected to the laser motor 7 through a connecting shaft, a laser emitter 3 is installed on the upper side of the outer wall of the angle assembly, a visual sensor 4 is installed on the left side of the outer wall of the laser emitter 3, and a laser motor 7 is installed on the lower side of the outer wall of the fixed bracket 1. The laser emitter 3, the visual sensor 4 and the laser motor 7 are connected to the controller 2 through a signal line;

[0057] The angle assembly includes: a first telescopic shaft 8, a second telescopic shaft 9, a first rotating shaft 10, a second rotating shaft 11 and an angle sensor 12;

[0058] A first telescopic shaft 8 is installed on the upper side of the outer wall of the slider 6, a first rotating shaft 10 is installed on the upper side of the outer wall of the first telescopic shaft 8, a second telescopic shaft 9 is installed on the upper side of the outer wall of the rotating shaft 10, and a second rotating shaft 11 is installed on the front side of the outer wall of the second telescopic shaft 9. The first telescopic shaft 8, the second telescopic shaft 9, the first rotating shaft 10 and the second rotating shaft 11 are connected to the laser motor 7 through a connecting shaft. An angle sensor 12 is installed at the connection between the first rotating shaft 10 and the second rotating shaft 11 and the second telescopic shaft 9, and the angle sensor 12 is connected to the controller 2 through a signal line;

[0059] Furthermore, during the operation of the belt conveyor, the controller 2 controls the transfer interface at the output end of the laser motor 7 to connect the slider 6. Driven by the laser motor 7, the slider 6 moves in the chute 5, driving the angle component above the slider 6 to move under the belt of the belt conveyor. The moving direction is perpendicular to the moving direction of the belt. When the angle component moves under the belt, the controller 2 controls the laser motor 7 to disconnect from the slider 6, so that the slider 6 stops moving. Then the controller 2 controls the laser emitter 3 to emit laser light to the belt, and collects the image information of the laser irradiated on the belt through the visual sensor 4 and transmits it to the controller. The controller 2 judges whether the belt has longitudinal tearing according to the laser image information on the belt. When longitudinal tearing occurs, the controller 2 sends an alarm to the operator and controls the belt conveyor to stop running. During the belt maintenance process of the belt conveyor, in order to ensure the integrity of the belt inspection, the controller 2 moves the slider 6 to the bottom of the belt and checks the bottom surface of the belt through the cooperation of the laser emitter 3 and the visual sensor 4. The controller 2 controls the output interface of the laser motor 7 to connect with the slider 6 and the second rotating shaft 11 at the same time. The controller 2 controls the laser motor 7 to drive the slider 6 in the chute 5. While making a reciprocating motion, the second rotating shaft 11 is driven to rotate, and the rotation angle of the second rotating shaft 11 is collected by the angle sensor 12 and transmitted to the controller 2, so that the laser emitter 3 can emit laser light to the belt at different angles and positions under the belt, and the visual sensor 4 collects the laser information of the bottom surface of the belt at different angles and positions, thereby ensuring that there is no blind spot in the detection of the bottom surface of the belt. After completing the detection of the bottom surface of the belt, the controller 2 controls the output interface of the laser motor 7 to connect with the first telescopic shaft 8 and the second telescopic shaft 9 to shrink the angle component, and then controls the output interface of the laser motor 7 to connect only with the slider 6 is connected to drive the angle component to move to the front side of the belt conveyor, and the controller 2 controls the adapter interface of the output end of the laser motor 7 to be connected with the first telescopic shaft 8, the first rotating shaft 10, the second telescopic shaft 9 and the second rotating shaft 11 in sequence, and adjusts the orientation of the laser emitter 3 and the visual sensor 4 so that the laser emitter 3 can emit laser light toward the front of the belt, and collects laser information through the visual sensor 4 and transmits it to the controller 2 for analysis, so that the laser detection can cover the front and bottom surfaces of the belt conveyor belt without dead angles, thereby improving the detection accuracy of the belt conveyor belt and avoiding detection errors caused by dead angles.

[0060] Example 2: Please refer to Figure 1 、 Figure 2 、 Figure 4 、 Figure 6 and Figure 8 A laser detection device for longitudinal tearing of a belt conveyor. A dust removal module is installed on the left side of the outer wall of the angle component. The dust removal module includes: a storage box 13, a suction component, a first connecting pipe 14, a dust isolation plate 15 and a dust removal motor 16;

[0061] A storage box 13 is installed on the left side of the outer wall of the chute 5, a dust isolation plate 15 is installed on the upper side of the outer wall of the storage box 13, and a suction component is installed on the lower side of the outer wall of the dust isolation plate 15. The suction component is connected to the storage box 13 through a first connecting pipe 14. A dust removal motor 16 is installed on the rear side of the outer wall of the laser motor 7. The suction component is connected to the dust removal motor 16 through a connecting shaft, and the dust removal motor 16 is connected to the controller 2 through a signal line.

[0062] The suction assembly includes: a fan 26, a filter 27, a third telescopic shaft 28 and an infrared sensor 29;

[0063] A filter 27 is mounted on the lower side of the outer wall of the dust screen 15, a third telescopic shaft 28 is mounted on the lower side of the outer wall of the dust screen 15, a fan 26 is mounted on the left side of the outer wall of the filter 27, the fan 26 and the third telescopic shaft 28 are connected to the dust removal motor 16 via a connecting shaft, an infrared sensor 29 is mounted on the upper side of the outer wall of the dust screen 15, and the infrared sensor 29 is connected to the controller 2 via a signal line;

[0064] The recovery assembly includes: a filter cloth 36, a vacuum pump 37, a flushing head 38, a fourth connecting pipe 39, a fifth connecting pipe 40 and a vacuum box 41;

[0065] A filter cloth 36 is installed in the middle of the inner wall of the storage box 13, and a vacuum box 41 is installed on the lower side of the outer wall of the filter cloth 36. The vacuum box 41 is connected to the water tank 17 through the recovery pipe 19. A flushing head 38 is installed on the upper side of the outer wall of the filter cloth 36. The flushing head 38 is connected to the water tank 17 through a fourth connecting pipe 39. A vacuum pump 37 is installed in the middle of the outer wall of the storage box 13. The vacuum pump 37 is connected to the vacuum box 41 through a fifth connecting pipe 40. The vacuum pump 37 is connected to the dust removal motor 16 through a connecting shaft;

[0066] Furthermore, before detecting the bottom surface of the belt, the controller 2 controls the adapter at the output end of the dust removal motor 16 to be connected to the third telescopic shaft 28. The dust removal motor 16 drives the third telescopic shaft 28 to raise the height of the dust separation plate 15, and transmits infrared rays to the bottom surface of the belt through the infrared sensor 29 above the dust separation plate 15 to detect the distance between the upper surface of the dust separation plate 15 and the bottom surface of the belt, so that the dust separation plate 15 can fit the bottom surface of the belt seamlessly. After the dust separation plate 15 fits the bottom surface of the belt, the connection between the dust removal motor 16 and the third telescopic shaft 28 is disconnected, and the adapter at the output end of the dust removal motor 16 is controlled to be connected to the fan 26. The dust removal motor 16 drives the fan 26 to rotate and generate suction. When the belt passes through the dust separation plate 15 during the operation of the belt conveyor, the dust separation plate 15 scrapes off the dirt on the bottom surface of the belt, and the suction generated by the fan 26 passes through the filter 27 and falls from the first connecting pipe 14 into the storage box 13, and the suction generated by the rotation of the fan 26 The air near the belt is sucked in, passes through the filter 27 and enters the storage box 13 through the first connecting pipe 14, so that the dirt accumulated on the bottom surface of the belt during the operation of the belt conveyor can be removed, and the dirt can be prevented from interfering with the laser. At the same time, the dust in the air near the laser module can be removed, and the interference of dust on the laser is reduced, thereby improving the accuracy of laser detection. After the wet dust enters the storage box 13, the vacuum pump 37 is connected by controlling the adapter at the output end of the dust removal motor 16. Driven by the vacuum pump 37, the suction force is transmitted to the vacuum box 41 through the fifth connecting pipe 40, and the moisture in the wet dust entering the filter cloth 36 is removed and flows into the vacuum box 41, and then flows into the water tank 17 through the recovery pipe 19 for water replenishment. After the wet dust treatment is completed, the flushing head 38 and the water tank 17 are regularly connected through the fourth connecting pipe 39, and the filter cloth 36 is flushed through the flushing head 38. In addition, the moist air can be inhaled through the suction component to reduce the air humidity.

[0067] Example 3: Please refer to Figure 1 、 Figure 2 、 Figure 5 and Figure 7 A belt conveyor belt longitudinal tear laser detection device, wherein a compensation module is installed on the upper side of the outer wall of the second telescopic shaft 9, and the compensation module includes: a water tank 17, a nozzle 18, an atomizing assembly, a recovery pipe 19, a recovery assembly, a second connecting pipe 20 and a humidity sensor 21;

[0068] A water tank 17 is installed on the rear side of the outer wall of the storage box 13, and a recovery component is installed in the middle of the inner wall of the storage box 13. The water tank 17 is connected to the recovery component through a recovery pipe 19. A nozzle 18 is installed on the upper side of the outer wall of the second telescopic shaft 9. An atomization component is installed on the upper side of the outer wall of the water tank 17. The atomization component is connected to the nozzle 18 through a second connecting pipe 20. The atomization component is connected to the dust removal motor 16 through a connecting shaft. A humidity sensor 21 is installed on the front side of the outer wall of the nozzle 18. The humidity sensor 21 is connected to the controller 2 through a signal line;

[0069] The atomizing assembly includes: an atomizing chamber 30, a filtering chamber 31, a piston 32, a push rod 33, a third connecting pipe 34 and a connecting valve 35;

[0070] An atomizing chamber 30 is installed on the upper side of the outer wall of the water tank 17, and the atomizing chamber 30 is connected to the water tank 17 through a connecting valve 35. The connecting valve 35 is connected to the controller 2 through a signal line. A filter chamber 31 is installed on the rear side of the outer wall of the atomizing chamber 30, and the atomizing chamber 30 is connected to the filter chamber 31 through a third connecting pipe 34. A piston 32 is installed in the middle of the inner wall of the atomizing chamber 30, and a push rod 33 is installed on the front side of the outer wall of the piston 32. The push rod 33 is connected to the dust removal motor 16 through a connecting shaft;

[0071] Furthermore, during the detection of the belt by the laser module, the humidity sensor 21 located on the upper side of the second telescopic shaft 9 collects the ambient humidity information near the laser module and transmits the information to the controller 2. The controller 2 compares the collected ambient humidity information with the preset humidity range of 20% to 90%. When the ambient humidity information is lower than 20%, the controller 2 controls the connecting valve 35 to connect the water tank 17 and the atomizing chamber 30, and controls the adapter at the output end of the dust removal motor 16 to connect with the push rod 33. Driven by the dust removal motor 16, the push rod 33 drives the piston 32 to move back and forth, and the water in the water tank 17 is removed. The flow is drawn into the atomizing chamber 30, and the air is extracted and filtered through the filter chamber 31 and then enters the atomizing chamber 30 through the third connecting pipe 34, and the air and water flow are compressed and sent into the nozzle 18 through the second connecting pipe 20. The nozzle 18 sprays the atomized water flow to compensate for the ambient humidity. When the ambient humidity is greater than 90%, the controller 2 controls the dust removal module to absorb the ambient air near the laser component, reduce the air humidity, and make the working environment humidity of the laser module within the set range, so as to avoid low detection accuracy caused by humidity deviation, and at the same time improve the service life of the detection device.

[0072] Example 4: Please refer to Figure 1 and Figure 2 , a belt conveyor belt longitudinal tear laser detection device, the fixed bracket 1 outer wall front and rear sides are installed with connection modules, the connection module includes: a clamping block 22, a lock 23, a vibration sensor 24 and a vibrator 25;

[0073] Clamping blocks 22 are installed on the front and rear sides of the outer wall of the fixing bracket 1, a locker 23 is installed on the upper side of the outer wall of the clamping block 22, a vibration sensor 24 is installed on the left side of the outer wall of the clamping block 22, and a vibrator 25 is installed at the joint between the inner wall of the fixing bracket 1 and the slide groove 5. The vibration sensor 24 and the vibrator 25 are connected to the controller 2 via a signal line;

[0074] Furthermore, the operator extends the fixed bracket 1 into the belt conveyor, fixes the clamping block 22 to the belt conveyor by mechanically tightening the locker 23, and makes the vibration sensor 24 contact with the belt conveyor. During the operation of the belt conveyor, the vibration information of the belt conveyor is obtained and transmitted to the controller 2. The controller 2 controls the vibrator 25 to vibrate in the opposite direction according to the obtained vibration information of the belt conveyor, and offsets the vibration generated when the belt conveyor is working, thereby avoiding laser offset, image blur and dirt shaking on the belt surface caused by vibration from being mistakenly identified as cracks. While improving the accuracy of detection, the clamping block 22 is fixed by mechanically tightening the locker 23 manually. The operation is simple, no additional modification to the belt conveyor is required, installation and removal are convenient, and the flexibility of the detection device is improved.

[0075] Example 5: Please refer to Figure 1 、 Figure 2 、 Figure 3 and Figure 5 , a belt conveyor belt longitudinal tear laser detection device, the angle assembly includes: a first telescopic shaft 8, a second telescopic shaft 9, a first rotating shaft 10, a second rotating shaft 11 and an angle sensor 12;

[0076] A first telescopic shaft 8 is installed on the upper side of the outer wall of the slider 6, a first rotating shaft 10 is installed on the upper side of the outer wall of the first telescopic shaft 8, a second telescopic shaft 9 is installed on the upper side of the outer wall of the rotating shaft 10, and a second rotating shaft 11 is installed on the front side of the outer wall of the second telescopic shaft 9. The first telescopic shaft 8, the second telescopic shaft 9, the first rotating shaft 10 and the second rotating shaft 11 are connected to the laser motor 7 through a connecting shaft. An angle sensor 12 is installed at the connection between the first rotating shaft 10 and the second rotating shaft 11 and the second telescopic shaft 9, and the angle sensor 12 is connected to the controller 2 through a signal line;

[0077] A compensation module is installed on the upper side of the outer wall of the second telescopic shaft 9, and the compensation module includes: a water tank 17, a nozzle 18, an atomizing assembly, a recovery pipe 19, a recovery assembly, a second connecting pipe 20 and a humidity sensor 21;

[0078] A water tank 17 is installed on the rear side of the outer wall of the storage box 13, and a recovery component is installed in the middle of the inner wall of the storage box 13. The water tank 17 is connected to the recovery component through a recovery pipe 19. A nozzle 18 is installed on the upper side of the outer wall of the second telescopic shaft 9. An atomization component is installed on the upper side of the outer wall of the water tank 17. The atomization component is connected to the nozzle 18 through a second connecting pipe 20. The atomization component is connected to the dust removal motor 16 through a connecting shaft. A humidity sensor 21 is installed on the front side of the outer wall of the nozzle 18. The humidity sensor 21 is connected to the controller 2 through a signal line;

[0079] Furthermore, after the belt conveyor completes its work, the controller 2 can control the adapter at the output end of the laser motor 7 to connect the slider 6, drive the angle component to move to the front side of the belt conveyor, and then control the adapter at the output end of the laser motor 7 to connect the first telescopic shaft 8, the first rotating shaft 10, the second telescopic shaft 9 and the second rotating shaft 11 in sequence, and adjust the position of the nozzle 18 located above the second telescopic shaft 9 so that the water flow sprayed by the nozzle 18 can contact the upper surface of the belt. Then, the controller 2 controls the atomization component to pressurize and atomize the water flow in the water tank 17, and the nozzle 18 sprays the pressurized atomized water flow to clean the upper surface of the belt and remove residual dirt, thereby improving the conveying effect of the belt and extending the service life of the belt. During the operation of the belt conveyor, the angle of the nozzle 18 can be adjusted by adjusting the angle component, so that the nozzle 18 can flush the objects conveyed on the belt, which can reduce the difficulty of subsequent processing of the material and improve the conveying effect of the belt conveyor.

[0080] Working Principle: The operator extends the fixing bracket 1 into the belt conveyor, fixes the clamping block 22 to the belt conveyor by mechanically tightening the lock 23, and makes the vibration sensor 24 contact with the belt conveyor. During the operation of the belt conveyor, the vibration information of the belt conveyor is obtained and transmitted to the controller 2. The controller 2 controls the vibrator 25 to vibrate in the opposite direction based on the obtained vibration information, thereby offsetting the vibration generated by the belt conveyor during operation.

[0081] Before detecting the bottom surface of the belt, the controller 2 controls the adapter at the output end of the dust removal motor 16 to connect with the third telescopic shaft 28. The dust removal motor 16 drives the third telescopic shaft 28 to raise the height of the dust separation plate 15, and transmits infrared rays to the bottom surface of the belt through the infrared sensor 29 above the dust separation plate 15 to detect the distance between the upper surface of the dust separation plate 15 and the bottom surface of the belt, so that the dust separation plate 15 can fit the bottom surface of the belt seamlessly. After the dust separation plate 15 fits the bottom surface of the belt, the connection between the dust removal motor 16 and the third telescopic shaft 28 is disconnected, and the adapter at the output end of the dust removal motor 16 is controlled to connect with the fan 26. The dust removal motor 16 drives the fan 26 to rotate and generate suction. When the belt passes through the dust separation plate 15 during the operation of the belt conveyor, the dust separation plate 15 scrapes off the dirt on the bottom surface of the belt, and the suction generated by the fan 26 passes through the filter 27 and falls into the storage box 13 from the first connecting pipe 14. The suction generated by the rotation of the fan 26 Air is sucked in, passes through the filter 27, and enters the storage box 13 through the first connecting pipe 14, so that the dirt accumulated on the bottom surface of the belt during the operation of the belt conveyor can be removed, so as to prevent the dirt from interfering with the laser. At the same time, it can remove the dust in the air near the laser module, reduce the interference of dust on the laser, and thus improve the accuracy of laser detection. After the wet dust enters the storage box 13, the vacuum pump 37 is connected by controlling the adapter at the output end of the dust removal motor 16. Driven by the vacuum pump 37, the suction force is transmitted to the vacuum box 41 through the fifth connecting pipe 40, and the moisture in the wet dust entering the filter cloth 36 is removed and flows into the vacuum box 41. Then, it flows into the water tank 17 through the recovery pipe 19 for water replenishment. After the wet dust treatment is completed, the flushing head 38 and the water tank 17 are regularly connected through the fourth connecting pipe 39, and the filter cloth 36 is flushed by the flushing head 38. In addition, the air humidity can be reduced by sucking in the moist air through the suction component;

[0082] During the detection process of the belt by the laser module, the humidity sensor 21 located on the upper side of the second telescopic shaft 9 collects the ambient humidity information near the laser module and transmits the information to the controller 2. The controller 2 compares the collected ambient humidity information with the preset humidity range of 20% to 90%. When the ambient humidity information is lower than 20%, the controller 2 controls the connecting valve 35 to connect the water tank 17 and the atomizing chamber 30, and controls the switching interface at the output end of the dust removal motor 16 to connect with the push rod 33. Driven by the dust removal motor 16, the push rod 33 drives the piston 32 to do The back-and-forth motion draws the water flow in the water tank 17 into the atomizing chamber 30, and draws the air through the filter chamber 31 for filtration, and then enters the atomizing chamber 30 through the third connecting pipe 34, compresses the air and water flow, and sends them into the nozzle 18 through the second connecting pipe 20. The nozzle 18 sprays the atomized water flow to compensate for the ambient humidity. When the ambient humidity is greater than 90%, the controller 2 controls the dust removal module to absorb the ambient air near the laser assembly to reduce the air humidity so that the working environment humidity of the laser module is within the set range.

[0083] During the operation of the belt conveyor, the controller 2 controls the adapter at the output end of the laser motor 7 to connect to the slider 6. Driven by the laser motor 7, the slider 6 moves in the slide 5, driving the angle component above the slider 6 to move under the belt of the belt conveyor. The moving direction is perpendicular to the movement direction of the belt. When the angle component moves under the belt, the controller 2 controls the laser motor 7 to disconnect from the slider 6, so that the slider 6 stops moving. Then the controller 2 controls the laser emitter 3 to emit laser light to the belt, and collects the image information of the laser irradiated on the belt through the visual sensor 4 and transmits it to the controller 2. The controller 2 judges based on the laser image information on the belt to determine whether the belt has longitudinal tearing. When longitudinal tearing occurs, the controller 2 issues an alarm to the operator and controls the belt conveyor to stop running. During the belt inspection of the belt conveyor, in order to ensure the integrity of the belt inspection, the controller 2 controls the adapter at the output end of the laser motor 7 to connect to the slider 6 and the second rotating shaft 11 at the same time when the slider 6 moves to the bottom of the belt through the cooperation of the laser emitter 3 and the visual sensor 4. The controller 2 controls the laser emitter 3 to connect to the slider 6 and the second rotating shaft 11 at the same time. The photoelectric motor 7 drives the slider 6 to make a reciprocating motion in the slide 5 while driving the second rotating shaft 11 to rotate. The angle sensor 12 collects the rotation angle of the second rotating shaft 11 and transmits it to the controller 2, so that the laser emitter 3 can emit laser light to the belt at different angles and positions under the belt. The visual sensor 4 collects the laser information of the bottom surface of the belt at different angles and positions, thereby ensuring that there is no blind spot in the detection of the bottom surface of the belt. After completing the detection of the bottom surface of the belt, the controller 2 controls the output interface of the laser motor 7 to connect with the first telescopic shaft 8 and the second telescopic shaft 9 to retract the angle component. The controller 2 controls the adapter at the output end of the laser motor 7 to be connected only to the slider 6, and drives the angle component to move to the front side of the belt conveyor. The controller 2 controls the adapter at the output end of the laser motor 7 to be connected to the first telescopic shaft 8, the first rotating shaft 10, the second telescopic shaft 9 and the second rotating shaft 11 in sequence, and adjusts the orientation of the laser emitter 3 and the visual sensor 4 so that the laser emitter 3 can emit laser light toward the front of the belt, and collects laser information through the visual sensor 4 and transmits it to the controller 2 for analysis, so that the laser detection can cover the front and bottom surfaces of the belt conveyor belt without dead angles.

[0084] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above and that the invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

Claims

1. A laser detection device for longitudinal tearing of a belt conveyor, comprising a fixed bracket (1), a laser module and a controller (2), characterized in that: A controller (2) is installed on the front side of the outer wall of the fixed bracket (1), and a laser module is installed on the upper side of the outer wall of the fixed bracket (1), and the laser module is connected to the controller (2) via a signal line; The laser module comprises: a laser emitter (3), a visual sensor (4), a slide groove (5), a slider (6), a laser motor (7) and an angle assembly; A slide groove (5) is installed on the upper side of the outer wall of the fixed bracket (1), a slider (6) is installed in the middle of the inner wall of the slide groove (5), an angle assembly is installed on the upper side of the outer wall of the slider (6), the slider (6) and the angle assembly are connected to the laser motor (7) through a connecting shaft, a laser emitter (3) is installed on the upper side of the outer wall of the angle assembly, a visual sensor (4) is installed on the left side of the outer wall of the laser emitter (3), a laser motor (7) is installed on the lower side of the outer wall of the fixed bracket (1), and the laser emitter (3), the visual sensor (4) and the laser motor (7) are connected to the controller (2) through a signal line.

2. The laser detection device for longitudinal tearing of a belt conveyor according to claim 1, characterized in that: The angle assembly comprises: a first telescopic shaft (8), a second telescopic shaft (9), a first rotating shaft (10), a second rotating shaft (11), and an angle sensor (12); A first telescopic shaft (8) is installed on the upper side of the outer wall of the slider (6), a first rotating shaft (10) is installed on the upper side of the outer wall of the first telescopic shaft (8), a second telescopic shaft (9) is installed on the upper side of the outer wall of the rotating shaft (10), a second rotating shaft (11) is installed on the front side of the outer wall of the second telescopic shaft (9), the first telescopic shaft (8), the second telescopic shaft (9), the first rotating shaft (10) and the second rotating shaft (11) are connected to the laser motor (7) through a connecting shaft, and an angle sensor (12) is installed at the connection between the first rotating shaft (10) and the second rotating shaft (11) and the second telescopic shaft (9), and the angle sensor (12) is connected to the controller (2) through a signal line.

3. The laser detection device for longitudinal tearing of a belt conveyor according to claim 2, characterized in that: A dust removal module is installed on the left side of the outer wall of the angle component, and the dust removal module includes: a storage box (13), a suction component, a first connecting pipe (14), a dust isolation plate (15) and a dust removal motor (16); A storage box (13) is installed on the left side of the outer wall of the slide (5), a dust-shielding plate (15) is installed on the upper side of the outer wall of the storage box (13), a suction component is installed on the lower side of the outer wall of the dust-shielding plate (15), and the suction component is connected to the storage box (13) through a first connecting pipe (14). A dust removal motor (16) is installed on the rear side of the outer wall of the laser motor (7), and the suction component is connected to the dust removal motor (16) through a connecting shaft. The dust removal motor (16) is connected to the controller (2) through a signal line.

4. The laser detection device for longitudinal tearing of a belt conveyor according to claim 3, characterized in that: A compensation module is installed on the upper side of the outer wall of the second telescopic shaft (9), and the compensation module includes: a water tank (17), a nozzle (18), an atomization component, a recovery pipe (19), a recovery component, a second connecting pipe (20) and a humidity sensor (21); A water tank (17) is installed on the rear side of the outer wall of the storage box (13), a recovery assembly is installed in the middle of the inner wall of the storage box (13), the water tank (17) is connected to the recovery assembly through a recovery pipe (19), a nozzle (18) is installed on the upper side of the outer wall of the second telescopic shaft (9), an atomization assembly is installed on the upper side of the outer wall of the water tank (17), the atomization assembly is connected to the nozzle (18) through a second connecting pipe (20), the atomization assembly is connected to the dust removal motor (16) through a connecting shaft, a humidity sensor (21) is installed on the front side of the outer wall of the nozzle (18), and the humidity sensor (21) is connected to the controller (2) through a signal line.

5. The laser detection device for longitudinal tearing of a belt conveyor according to claim 1, characterized in that: The fixing bracket (1) is provided with connection modules installed on both the front and rear sides of the outer wall, and the connection modules include: a clamping block (22), a locker (23), a vibration sensor (24) and a vibrator (25); Clamps (22) are installed on the front and rear sides of the outer wall of the fixed bracket (1), a locker (23) is installed on the upper side of the outer wall of the clamping block (22), a vibration sensor (24) is installed on the left side of the outer wall of the clamping block (22), a vibrator (25) is installed at the joint between the inner wall of the fixed bracket (1) and the slide groove (5), and the vibration sensor (24) and the vibrator (25) are connected to the controller (2) through a signal line.

6. The laser detection device for longitudinal tearing of a belt conveyor according to claim 3, characterized in that: The suction component includes: a fan (26), a filter (27), a third telescopic shaft (28) and an infrared sensor (29); A filter (27) is installed on the lower side of the outer wall of the dust-shielding plate (15), a third telescopic shaft (28) is installed on the lower side of the outer wall of the dust-shielding plate (15), a fan (26) is installed on the left side of the outer wall of the filter (27), the fan (26) and the third telescopic shaft (28) are connected to the dust-removing motor (16) through a connecting shaft, an infrared sensor (29) is installed on the upper side of the outer wall of the dust-shielding plate (15), and the infrared sensor (29) is connected to the controller (2) through a signal line.

7. The laser detection device for longitudinal tearing of a belt conveyor according to claim 4, characterized in that: The atomizing assembly comprises: an atomizing chamber (30), a filtering chamber (31), a piston (32), a push rod (33), a third connecting pipe (34) and a connecting valve (35); An atomizing chamber (30) is installed on the upper side of the outer wall of the water tank (17), and the atomizing chamber (30) is connected to the water tank (17) through a connecting valve (35). The connecting valve (35) is connected to the controller (2) through a signal line. A filter chamber (31) is installed on the rear side of the outer wall of the atomizing chamber (30), and the atomizing chamber (30) is connected to the filter chamber (31) through a third connecting pipe (34). A piston (32) is installed in the middle of the inner wall of the atomizing chamber (30), and a push rod (33) is installed on the front side of the outer wall of the piston (32). The push rod (33) is connected to the dust removal motor (16) through a connecting shaft.

8. The laser detection device for longitudinal tearing of a belt conveyor according to claim 4, characterized in that: The recovery assembly comprises: a filter cloth (36), a vacuum pump (37), a flushing head (38), a fourth connecting pipe (39), a fifth connecting pipe (40), and a vacuum box (41); A filter cloth (36) is installed in the middle of the inner wall of the storage box (13), a vacuum box (41) is installed on the lower side of the outer wall of the filter cloth (36), and the vacuum box (41) is connected to the water tank (17) through the recovery pipe (19). A flushing head (38) is installed on the upper side of the outer wall of the filter cloth (36), and the flushing head (38) is connected to the water tank (17) through a fourth connecting pipe (39). A vacuum pump (37) is installed in the middle of the outer wall of the storage box (13), and the vacuum pump (37) is connected to the vacuum box (41) through a fifth connecting pipe (40). The vacuum pump (37) is connected to the dust removal motor (16) through a connecting shaft.

9. A method for using a laser detection device for longitudinal tearing of a belt conveyor, applicable to the laser detection device for longitudinal tearing of a belt conveyor according to any one of claims 1 to 8, characterized in that: The method of use is: S1: The operator extends the fixed bracket (1) into the belt conveyor, fixes the clamping block (22) to the belt conveyor by mechanically tightening the lock (23), and makes the vibration sensor (24) contact the belt conveyor, obtains the vibration information of the belt conveyor during operation, and transmits it to the controller (2). The controller (2) controls the vibrator (25) to perform reverse vibration compensation according to the obtained vibration information of the belt conveyor; S2: the controller (2) controls the dust removal motor (16) to drive the third telescopic shaft (28) to adjust the height of the dust separation plate (15) so that the dust separation plate (15) contacts the belt of the belt conveyor, and the controller (2) controls the suction component to remove dust from the belt; S3: The controller (2) controls the compensation module to compensate for the ambient humidity according to the ambient humidity information transmitted by the humidity sensor (21); S4: The controller (2) controls the angle component to adjust the angles of the laser emitter (3) and the visual sensor (4) to detect the belt of the belt conveyor.

10. The method for using the laser detection device for longitudinal tearing of a belt conveyor according to claim 9, characterized in that: The S4 is specifically: S41: The controller (2) controls the laser motor (7) to drive the slider (6) to move in the slide groove (5); S42: Control the laser emitter (3) to emit laser light to the belt, and the visual sensor (4) collects laser information on the belt and transmits it to the controller (2); S43: The controller (2) controls the laser motor (7) to drive the angle assembly, and adjusts the orientation of the laser emitter (3) and the visual sensor (4) by adjusting the first telescopic shaft (8), the first rotating shaft (10) and the second rotating shaft (11), thereby detecting the bottom surface of the belt conveyor; S44: After completing the inspection of the belt bottom surface, the controller (2) controls the angle assembly to retract, and then controls the laser motor (7) to drive the slider (6) to move in the chute (5), so as to move the angle assembly out of the belt bottom surface, so that the angle assembly is located at the front side of the belt conveyor; S45: The controller (2) controls the laser motor (7) to drive the first telescopic shaft (8) to raise the laser emitter (3) and the visual sensor (4) to a height above the belt; S46: The controller (2) controls the laser motor (7) to drive the second telescopic shaft (9), the first rotating shaft (10) and the second rotating shaft (11) to adjust the orientation of the laser emitter (3) and the visual sensor (4), detect the upper surface of the belt, and transmit the detection result to the controller (2).

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