An adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system

Abstract

The application relates to a self-adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system, and relates to the technical field of conveyor belt damage detection. The system comprises a supporting plate, a detecting assembly, an adjusting assembly, a longitudinal tear identifying main body and a compensation assembly. The detecting assembly comprises a detecting sleeve, a detecting rod and a constant force driving part. The adjusting assembly comprises an adjusting box, a connecting column, a permanent magnet plate, an electromagnet and a current adjusting part. The compensation assembly comprises a first compensation block, a second compensation block and a compensation power part. Under the constant force abutting detection of the detecting rod on the conveyor belt, the electromagnet can quickly adjust the position of the connecting column. Under the compensation effect of the first compensation block, the second compensation block and the compensation power part, the longitudinal tear identifying main body can keep the best shooting distance without expanding the shooting gap. The application has the effects that the shooting gap of the protective shell does not need to be expanded, and the shooting distance of the high-speed three-dimensional camera can be met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of conveyor belt damage detection, in particular to a self-adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system. BACKGROUND

[0002] A conveyor belt is an important material conveying tool and plays an important role in production and transportation. Whether the conveyor belt can safely run directly determines the safety and stability of the production line operation. In order to discover the damage of the conveyor belt in time, a longitudinal tear monitoring device is usually arranged on the rack.

[0003] The existing longitudinal tear monitoring device is fixedly arranged below the conveying surface of the conveyor belt. The longitudinal tear monitoring device collects real-time data of the belt surface of the conveyor belt through a high-speed three-dimensional camera and generates an image. Whether the conveyor belt is damaged can be directly observed through the image.

[0004] In order to shield dust or foreign matter, a protective shell is usually arranged on the longitudinal tear monitoring device. An opening is arranged on the protective shell for the high-speed three-dimensional camera to shoot. Since the amount of material falling on the conveyor belt is random, the extrusion deformation of the conveyor belt is also random. In addition, the high-speed three-dimensional camera has a requirement for the shooting distance. In order to meet the requirement of the shooting distance of the high-speed three-dimensional camera, the opening width of the protective shell needs to be increased to expand the shooting range of the high-speed three-dimensional camera, so that the high-speed three-dimensional camera can collect picture data at the required shooting distance within the shooting range.

[0005] In the above scheme, although the increase of the shooting opening of the protective shell can expand the shooting range of the high-speed three-dimensional camera, the increase of the shooting opening will also make it easier for dust or foreign matter to enter the protective shell, especially in the harsh environment of the coal mine underground, which will seriously reduce the protection effect of the protective shell. Therefore, there is an urgent need for a longitudinal tear monitoring device which does not need to expand the shooting opening of the protective shell and can meet the shooting distance of the high-speed three-dimensional camera. SUMMARY

[0006] In order to meet the shooting distance of the high-speed three-dimensional camera without expanding the shooting opening of the protective shell, the application provides a self-adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system.

[0007] The self-adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system provided by the application adopts the following technical scheme:

[0008] The self-adaptive conveyor belt longitudinal tear three-dimensional scanning and identifying system comprises a supporting plate, a detection assembly, an adjusting assembly, a longitudinal tear identification main body and a compensation assembly. The supporting plate is connected to the rack of the conveyor belt and located directly below the material receiving area of the conveyor belt.

[0009] The detection assembly comprises a detection sleeve, a detection rod and a constant force driving part:

[0010] The detection sleeve is connected to the support plate, the detection rod is slidably arranged in the detection sleeve, and the constant force driving part is connected to the detection sleeve and the detection rod respectively, and is used to drive the detection rod to slide out of the detection sleeve and abut against the conveying belt with a constant driving force;

[0011] The adjusting assembly comprises an adjusting box, a connecting column, a permanent magnet plate, an electromagnet and a current adjusting part;

[0012] The adjusting box is connected to the support plate, the connecting column is slidably arranged in the top end of the adjusting box, the permanent magnet plate is connected to one end of the connecting column in the adjusting box, the electromagnet is connected to the bottom end inside the adjusting box, the electromagnet is arranged opposite to the permanent magnet plate, and the polarity of the side close to each other of the electromagnet and the permanent magnet plate is the same when the electromagnet is electrified;

[0013] The current adjusting part is connected to the detection rod and electrically connected to the electromagnet, the current adjusting part controls the current in the electromagnet based on the sliding stroke of the detection rod relative to the detection sleeve, so as to control the detection rod and the connecting column to slide synchronously and in the same direction by the same displacement;

[0014] The longitudinal tear identification main body is arranged on the connecting column, and is used to scan and identify defects on the surface of the conveying belt, and the shooting position is located at the center position of the material receiving area of the conveying belt;

[0015] The compensation assembly is connected between the longitudinal tear identification main body and the connecting column, and is used to compensate for the adjustment displacement difference of the longitudinal tear identification main body, the adjustment displacement difference is the displacement difference in the vertical direction between the shooting position of the longitudinal tear identification main body on the conveying belt and the abutting position of the detection rod on the conveying belt, and the sliding displacement of the detection rod plus the adjustment displacement difference is equal to the moving displacement of the longitudinal tear identification main body.

[0016] Optionally, the detection sleeve is rotatably connected to the support plate, the constant force driving part comprises a sliding block, a guide rod, a first magnetic wheel and a second magnetic wheel, the sliding block is connected to the detection rod, the sliding block is slidably arranged in the spiral groove formed on the inner wall of the detection sleeve, the guide rod is a polygonal rod and is connected to the support plate, the guide rod is slidably arranged in the guide sliding groove formed on the detection rod in the sliding direction of the detection rod, the first magnetic wheel is connected to the detection sleeve, the second magnetic wheel is located on one side of the first magnetic wheel, the second magnetic wheel is connected with a motor, the motor is installed on the support plate, and the second magnetic wheel is used to magnetically drive the first magnetic wheel to rotate.

[0017] Optionally, the current adjusting part comprises an adjusting contact, a resistance slide rail and a power supply, the adjusting contact is embedded on the detection rod, the resistance slide rail is embedded on the guide rod, the adjusting contact abuts on the resistance slide rail, the adjusting contact is electrically connected with the power supply, the electromagnet is provided with two wiring ends for power supply, the top end of the resistance slide rail is electrically connected with one of the wiring ends of the electromagnet, the other wiring end of the electromagnet is electrically connected with the power supply, and the power supply, the adjusting contact, the resistance slide rail and the electromagnet form a complete current loop.

[0018] Optionally, the compensation assembly comprises a first compensation block, a second compensation block and a compensation power part, the first compensation block is symmetrically provided with two, and is slidably connected on the longitudinal tearing identification main body, the two first compensation blocks are provided with a first compensation inclined surface at the end close to each other, the second compensation block is connected on the connecting column and located between the two first compensation blocks, the second compensation block is provided with two second compensation inclined surfaces matched with the first compensation inclined surface, and the second compensation inclined surface is abutted on the first compensation inclined surface one by one. The compensation power part is used for driving the two first compensation blocks to slide in the direction away from each other when the connecting column slides downward, and is used for driving the two first compensation blocks to slide in the direction close to each other when the connecting column slides upward.

[0019] Optionally, the compensation power part comprises a telescopic rod, a sliding block and a compensation connecting rod, the telescopic rod, the sliding block and the compensation connecting rod are symmetrically provided with two, the telescopic rod is one-to-one corresponding to the first compensation block, the movable end of the telescopic rod is connected to the first compensation block, the sliding block is one-to-one connected to the telescopic rod, the sliding block is slidably connected to the adjusting box, one end of the compensation connecting rod is one-to-one hinged to the sliding block, and the other end is hinged to the connecting column. The compensation connecting rod is inclined, and when the connecting column slides downward, the included angle of the two compensation connecting rods increases to drive the two sliding blocks to slide in the direction away from each other.

[0020] Optionally, the adjusting box is provided with a supporting limiting assembly, the supporting limiting assembly comprises a supporting limiting block, the supporting limiting block is connected to the adjusting box and located between the electromagnet and the permanent magnet plate, the supporting limiting block is located on the downward sliding track of the connecting column, and the side of the supporting limiting block close to the permanent magnet plate is provided with a flexible pad.

[0021] Optionally, the supporting limiting assembly further comprises a supporting limiting electric cylinder, the supporting limiting electric cylinder is connected to the adjusting box, and the supporting limiting block is connected to the movable end of the supporting limiting electric cylinder. The supporting limiting electric cylinder is used for driving the supporting limiting block to move along the sliding direction of the connecting column, so that the supporting limiting block can support the connecting column when the connecting column slides to the highest position.

[0022] Optionally, the top end of the detection rod is rotatably connected with a roller, and the roller abuts on the conveying belt.

[0023] In summary, the present application has at least one of the following beneficial technical effects:

[0024] The application discloses an adaptive conveyor belt longitudinal tearing three-dimensional scanning and identifying system which comprises a supporting plate, a detecting assembly, an adjusting assembly, a longitudinal tearing identifying main body and a compensating assembly. The detecting rod can abut on the conveyor belt under the constant magnetic driving force of the second magnetic wheel to the first magnetic wheel. When the conveyor belt is deformed, the detecting rod can be pushed downward relative to the detecting sleeve, so that the detecting rod can accurately detect the deformation of the conveyor belt. The abutting force of the detecting rod on the conveyor belt can remain unchanged when the detecting rod slides downward, so that the detecting rod cannot make the conveyor belt bulge or be damaged when being pushed by the conveyor belt. When the detecting rod slides relative to the detecting sleeve, the adjusting contact can slide relative to the electric resistance sliding rail, so as to adjust the current size of the electromagnet, so that the magnetic force of the electromagnet can change along with the sliding of the detecting rod. The electromagnet drives the connecting column to slide through the changing magnetic force, so that the connecting column can slide synchronously and in the same direction with the detecting rod by the same displacement. When the connecting column slides, the distance between the first compensating block and the longitudinal tearing identifying main body can be adjusted under the driving of the compensating connecting rod, the sliding block and the telescopic rod, so as to compensate the adjusting displacement difference of the longitudinal tearing identifying main body, so that the longitudinal tearing identifying main body can collect data in a floating manner, so that the longitudinal tearing identifying main body can collect data of the conveyor belt at the best shooting distance without increasing the shooting gap of the protective shell. BRIEF DESCRIPTION OF DRAWINGS

[0025] Figure 1 is a structural schematic diagram of an embodiment of the application;

[0026] Figure 2 is a structural schematic diagram of a detecting assembly and a compensating assembly;

[0027] Figure 3 is a structural schematic diagram of an adjusting assembly and a supporting limiting assembly;

[0028] Figure 4 is a sectional view of a spiral groove;

[0029] Figure 5 is Figure 4 is an enlarged view of A in FIG. 6;

[0030] Figure 6 is an exploded view of a dovetail groove and a dovetail block.

[0031] BRIEF DESCRIPTION OF DRAWINGS:

[0032] 1. Support plate; 2. Detection assembly; 21. Detection sleeve; 211. Spiral groove; 22. Detection rod; 221. Guide groove; 222. Roller; 23. Constant force drive unit; 231. Slider; 232. Guide rod; 233. First magnetic wheel; 234. Second magnetic wheel; 235. Motor; 3. Adjustment assembly; 31. Adjustment box; 32. Connecting column; 33. Permanent magnet plate; 34. Electromagnet; 341. Terminal; 35. Current adjustment unit; 351 1. Adjusting contact; 352. Resistance slide rail; 353. Power supply; 4. Longitudinal tear identification body; 5. Compensation component; 51. First compensation block; 511. First compensation slope; 512. Dovetail groove; 52. Second compensation block; 521. Second compensation slope; 522. Dovetail block; 53. Compensation power unit; 531. Telescopic rod; 532. Sliding block; 533. Compensation connecting rod; 6. Limiting component; 61. Limiting block; 611. Flexible pad; 62. Limiting electric cylinder. Detailed Implementation

[0033] The following is in conjunction with the appendix Figures 1-6 This application will be described in further detail.

[0034] This application discloses an adaptive 3D scanning and recognition system for longitudinal tearing of conveyor belts. (Refer to...) Figure 1 An adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system includes a support plate 1, a detection component 2, an adjustment component 3, a longitudinal tear recognition body 4, and a compensation component 5.

[0035] Reference Figure 1 The support plate 1 is fixed to the frame of the conveyor belt and is located directly below the material receiving area of ​​the conveyor belt.

[0036] Reference Figure 2 The detection component 2 includes a detection sleeve 21, a detection rod 22, and a constant force drive unit 23.

[0037] The detection sleeve 21 is connected to the support plate 1, and the detection rod 22 slides through the detection sleeve 21. The constant force drive unit 23 is connected to the detection sleeve 21 and the detection rod 22 respectively. The constant force drive unit 23 is used to drive the detection rod 22 to slide out of the detection sleeve 21 and abut against the conveyor belt with a constant driving force. During the random deformation of the conveyor belt, the constant force drive unit 23 ensures that the detection rod 22 can always abut against the conveyor belt to ensure the detection accuracy of the detection rod 22. In addition, the constant force drive unit 23 makes it difficult for the abutment force of the detection rod 22 against the conveyor belt to increase due to the increase of the deformation of the conveyor belt, so that the conveyor belt is not prone to bulging or damage due to the reaction force of the detection rod 22.

[0038] Reference Figure 2 and Figure 3 The adjustment assembly 3 includes an adjustment box 31, a connecting column 32, a permanent magnet plate 33, an electromagnet 34, and a current adjustment part 35.

[0039] The adjusting box 31 is fixed on the support plate 1, the connecting column 32 slides in the vertical direction through the top end of the adjusting box 31, the permanent magnet plate 33 is fixed on one end of the connecting column 32 in the adjusting box 31, the electromagnet 34 is fixed on the bottom end inside the adjusting box 31, the electromagnet 34 is opposite to the permanent magnet plate 33, and the polarity of the side close to each other of the electromagnet 34 and the permanent magnet plate 33 is the same when the electromagnet 34 is electrified, and the electromagnet 34 can drive the connecting column 32 to float and slide by magnetic thrust.

[0040] The current adjusting part 35 is connected to the detection rod 22 and electrically connected to the electromagnet 34, the current adjusting part 35 controls the current in the electromagnet 34 based on the sliding stroke of the detection rod 22 relative to the detection sleeve 21, so as to control the detection rod 22 and the connecting column 32 to slide synchronously and in the same direction by the same displacement, so that the connecting column 32 and the detection rod 22 can adjust the same displacement, and the driving force output by the electromagnet 34 is controlled by controlling the current of the electromagnet 34, so that the driving of the electromagnet 34 to the connecting column 32 can have excellent dynamic response performance, avoiding the problem of poor adjustment flexibility caused by inertia, so that the position adjustment of the connecting column 32 can be accurately adapted to the deformation of the conveyor belt.

[0041] Referring to Figure 2 The longitudinal tear identification body 4 is provided on the connecting column 32, and the longitudinal tear identification body 4 is used for scanning and identifying defects on the surface of the conveyor belt. The shooting position of the longitudinal tear identification body 4 is located at the center position of the material receiving area of the conveyor belt. The longitudinal tear identification body 4 can be adjusted in position with the sliding of the connecting column 32 to meet the requirements of its shooting distance, and the shooting position of the longitudinal tear identification body 4 on the conveyor belt is the position where the deformation of the conveyor belt is the largest. The deformation amount of the arc-shaped conveyor belt at the shooting position of the longitudinal tear identification body 4 is greater than that at the abutting position of the detection rod 22, so the adjustment of the longitudinal tear identification body 4 needs to be compensated by the compensation assembly 5.

[0042] The compensation assembly 5 is connected between the longitudinal tear identification body 4 and the connecting column 32, and is used for compensating for the adjustment displacement difference of the longitudinal tear identification body 4 to improve the adjustment accuracy of the longitudinal tear identification body 4. The adjustment displacement difference is the displacement difference in the vertical direction between the shooting position of the longitudinal tear identification body 4 on the conveyor belt and the abutting position of the detection rod 22 on the conveyor belt. The sliding displacement of the detection rod 22 plus the adjustment displacement difference is equal to the moving displacement of the longitudinal tear identification body 4.

[0043] In use, the material is dropped onto the conveying belt, and the material deforms the conveying belt in an arc shape by gravity and falling impact force. Since the amount of material falling is randomly changed, the deformation amount of the conveying belt is also randomly changed. The arc-shaped deformed conveying belt can push and press the detection rod 22 to slide relative to the detection sleeve 21. Under the driving of the constant force driving part 23, the top end of the detection rod 22 can always abut against the conveying belt, and the abutment force of the detection rod 22 against the conveying belt is always constant, so that the sliding displacement of the detection rod 22 can accurately reflect the deformation condition of the conveying belt. At the same time, the detection rod 22 is not easy to exert an increasingly greater abutment force against the conveying belt due to the large deformation of the conveying belt, so that the conveying belt will not be bulged or damaged due to the reaction force of the detection rod 22 when the conveying belt deforms to push and press the detection rod 22.

[0044] The current regulating part 35 controls the size of the current in the electromagnet 34 according to the sliding stroke of the detection rod 22 relative to the detection sleeve 21. Since the change of the current causes the change of the magnetic force of the electromagnet 34, the inertia is not easy to exist, so that the electromagnet 34 can quickly drive the permanent magnet plate 33 to move according to the sliding condition of the detection rod 22. The permanent magnet plate 33 can drive the connecting column 32 to slide, so that the connecting column 32 can quickly respond to the detection result of the detection rod 22 to adjust the position of the connecting column 32. In the process of synchronous and same-direction position adjustment of the connecting column 32 and the detection rod 22, the height of the longitudinal tear identification main body 4 can be quickly adjusted.

[0045] In the process of the connecting column 32 sliding to adjust the position of the longitudinal tear identification main body 4, the compensation assembly 5 can compensate for the displacement difference of the longitudinal tear identification main body 4 to improve the accuracy of the position adjustment of the longitudinal tear identification main body 4, so that the position adjustment of the longitudinal tear identification main body 4 can be more accurate.

[0046] Based on the above analysis, under the detection action of the detection rod 22, the magnetic driving action of the electromagnet 34 and the compensation action of the compensation assembly 5, the longitudinal tear identification main body 4 can quickly adjust its position according to the deformation of the conveying belt, so that the longitudinal tear identification main body 4 can collect data in a floating manner, thereby enabling the longitudinal tear identification main body 4 to collect data of the conveying belt at the best shooting distance without increasing the shooting gap of the protective shell.

[0047] Specifically, referring to Figure 2 , Figure 4 and Figure 5 , the constant force driving part 23 comprises a sliding block 231, a guide rod 232, a first magnetic wheel 233 and a second magnetic wheel 234.

[0048] Referring to Figure 2 , the detection sleeve 21 is rotationally connected to the support plate 1.

[0049] Referring to Figure 2 and Figure 5The sliding block 231 is fixed on the detection rod 22, and is slidably arranged in the helical groove 211 formed on the inner wall of the detection sleeve 21. The detection sleeve 21 is rotated to drive the detection rod 22 to slide upward. The guide rod 232 is a rectangular rod and is fixed on the support plate 1. The guide rod 232 is slidably arranged in the guide sliding groove 221 formed on the detection rod 22 in the sliding direction of the detection rod 22, and the guide rod 232 limits the rotation of the detection rod 22. In order to improve the stability of the detection sleeve 21 driving the detection rod 22, the sliding block 231 is symmetrically arranged.

[0050] With reference to Figure 2 The first magnetic wheel 233 is fixed on the detection sleeve 21, and the second magnetic wheel 234 is located on one side of the first magnetic wheel 233. The second magnetic wheel 234 is connected with the motor 235, and the motor 235 is fixed on the support plate 1. The output shaft of the motor 235 is fixed with the second magnetic wheel 234. The second magnetic wheel 234 is used to magnetically drive the first magnetic wheel 233 to rotate. By pre-setting the size of the magnetic driving force of the second magnetic wheel 234 on the first magnetic wheel 233, the detection rod 22 can abut on the conveying belt with constant force, and the constant force applied by the detection rod 22 is not easy to cause the conveying belt to bulge or be damaged.

[0051] The motor 235 drives the second magnetic wheel 234 to rotate, and the second magnetic wheel 234 magnetically drives the first magnetic wheel 233 to rotate. The first magnetic wheel 233 drives the detection sleeve 21 to rotate. Under the limitation of the guide rod 232, the detection rod 22 is difficult to rotate, so that the detection sleeve 21 can drive the sliding block 231 to move upward through the helical groove 211. The sliding block 231 can drive the detection rod 22 to abut on the conveying belt. Since the magnetic driving force of the second magnetic wheel 234 on the first magnetic wheel 233 is constant, the abutting force of the detection rod 22 abutting on the conveying belt can be constant. When the conveying belt extrudes the detection rod 22 to slide downward, only the detection sleeve 21 is driven to rotate in the opposite direction, and the abutting force of the detection rod 22 on the conveying belt will not change, so that the detection rod 22 can abut on the conveying belt with constant abutting force.

[0052] Specifically, with reference to Figure 2 and Figure 5 The current adjusting part 35 includes an adjusting contact 351, a resistance sliding rail 352 and a power supply 353.

[0053] With reference to Figure 2 , Figure 3 and Figure 5The adjusting contact 351 is fixedly embedded on the detection rod 22, the resistance slide rail 352 is fixedly embedded on the guide rod 232, the adjusting contact 351 abuts on the resistance slide rail 352, and the adjusting contact 351 is electrically connected with the power supply 353. Two wiring ends 341 for power supply are arranged on the electromagnet 34, the top end of the resistance slide rail 352 is electrically connected with one of the wiring ends 341 on the electromagnet 34, the other wiring end 341 on the electromagnet 34 is electrically connected with the power supply 353, and the power supply 353, the adjusting contact 351, the resistance slide rail 352 and the electromagnet 34 form a complete current loop. By changing the contact position of the adjusting contact 351 and the resistance slide rail 352, the size of the current in the current loop can be adjusted, and when the adjusting contact 351 slides downward relative to the resistance slide rail 352, the current in the current loop decreases. The resistance value of the resistance slide rail 352 can be designed according to actual needs to meet the requirement that the displacement amounts of the detection rod 22 and the connecting column 32 are consistent.

[0054] The current loop composed of the power supply 353, the adjusting contact 351, the resistance slide rail 352 and the electromagnet 34 can change the resistance value in the loop by changing the contact position of the adjusting contact 351 and the resistance slide rail 352, so that the size of the current in the current loop can be adjusted by moving the adjusting contact 351, and the current of the electromagnet 34 can be controlled based on the sliding stroke of the detection rod 22. Since the top end of the resistance slide rail 352 is electrically connected with the wiring end 341 on the electromagnet 34, when the adjusting contact 351 slides downward with the detection rod 22, the part of the resistance slide rail 352 entering the current loop increases, so that the magnetic force of the electromagnet 34 can be weakened, so that when the detection rod 22 is pressed and slides downward, the magnetic force of the electromagnet 34 can be weakened, so that the position of the longitudinal tear identification main body 4 can be adjusted downward.

[0055] Specifically, referring to Figure 2 , the compensation assembly 5 comprises a first compensation block 51, a second compensation block 52 and a compensation power part 53.

[0056] Referring to Figure 2 and Figure 6 , the first compensation block 51 is symmetrically provided with two, and is slidably connected on the longitudinal tear identification main body 4. The two first compensation blocks 51 are provided with a first compensation inclined surface 511 at one end close to each other. The second compensation block 52 is fixedly connected to the connecting column 32 and located between the two first compensation blocks 51. The second compensation block 52 is provided with two second compensation inclined surfaces 521 adapted to the first compensation inclined surface 511, and the second compensation inclined surfaces 521 are one-to-one correspondingly abut on the first compensation inclined surface 511.

[0057] Referring to Figure 2The compensation power part 53 is used to drive the two first compensation blocks 51 to slide in the direction away from each other when the connecting column 32 slides downward, and the compensation power part 53 is used to drive the two first compensation blocks 51 to slide in the direction close to each other when the connecting column 32 slides upward. When the two first compensation blocks 51 are away from or close to each other, the distance between the connecting column 32 and the longitudinal tearing identification main body 4 can be adjusted, so as to compensate for the adjustment displacement difference of the longitudinal tearing identification main body 4.

[0058] When the magnetic force of the electromagnet 34 changes to drive the connecting column 32 to slide, the compensation power part 53 can drive the two first compensation blocks 51 to slide in the direction away from or close to each other, so that the distance between the two first compensation blocks 51 can be adjusted, and the second compensation block 52 can slide close to or away from the longitudinal tearing identification main body 4 through the second compensation inclined surface 521 and the first compensation inclined surface 511, so as to adjust the distance between the connecting column 32 and the longitudinal tearing identification main body 4, thereby compensating for the adjustment displacement difference of the longitudinal tearing identification main body 4 through the mutual sliding between the first compensation block 51 and the second compensation block 52 when the connecting column 32 slides.

[0059] Specifically, referring to Figure 2 The compensation power part 53 comprises telescopic rods 531, sliding blocks 532 and compensation connecting rods 533.

[0060] The telescopic rods 531, the sliding blocks 532 and the compensation connecting rods 533 are all symmetrically provided with two, the telescopic rods 531 correspond one by one to the first compensation blocks 51, and the movable ends of the telescopic rods 531 are fixedly connected on the sides of the first compensation blocks 51 away from the longitudinal tearing identification main body 4. The sliding blocks 532 are fixedly connected one by one on the telescopic rods 531, and the sliding blocks 532 are slidingly connected on the top ends outside the adjusting box 31. One end of the compensation connecting rod 533 is hingedly connected one by one on the sliding block 532, and the other end is hingedly connected on the connecting column 32, and the compensation connecting rod 533 is inclinedly arranged. When the connecting column 32 slides downward, the included angle of the two compensation connecting rods 533 increases, so as to drive the two sliding blocks 532 to slide in the direction away from each other.

[0061] When the connecting column 32 slides downward, the connecting column 32 can drive the two compensation connecting rods 533 to swing synchronously, so that the included angle between the two compensation connecting rods 533 increases, the two compensation connecting rods 533 can drive the two sliding blocks 532 to slide away from each other, the sliding block 532 can drive the telescopic rod 531 to move, and the telescopic rod 531 can drive the first compensation block 51 to slide. Under the action of the gravity of the longitudinal tearing identification main body 4, the first compensation inclined surface 511 can slide relative to the second compensation inclined surface 521 to reduce the distance between the connecting column 32 and the longitudinal tearing identification main body 4. Conversely, when the connecting column 32 slides upward, the included angle between the two compensation connecting rods 533 can decrease, so that the distance between the connecting column 32 and the longitudinal tearing identification main body 4 can increase, thereby compensating for the adjustment displacement difference of the longitudinal tearing identification main body 4.

[0062] Referring to Figure 6 , in order to improve the stability of the sliding of the first compensation inclined surface 511 relative to the second compensation inclined surface 521, the second compensation inclined surface 521 is fixedly connected with a dovetail block 522, and the dovetail block 522 is slidingly arranged in a dovetail groove 512 formed in the corresponding first compensation inclined surface 511.

[0063] Referring to Figure 3 , in order to avoid the collision between the permanent magnet plate 33 and the electromagnet 34 due to accidents or failures, the adjusting box 31 is provided with a supporting and limiting assembly 6. The supporting and limiting assembly 6 includes a supporting and limiting block 61 connected to the adjusting box 31 and located between the electromagnet 34 and the permanent magnet plate 33. The supporting and limiting block 61 is located on the downward sliding track of the connecting column 32, and a flexible pad layer 611 is fixedly arranged on the side of the supporting and limiting block 61 close to the permanent magnet plate 33. When the permanent magnet plate 33 collides with the electromagnet 34 due to accidents or failures, the permanent magnet plate 33 will first collide with the supporting and limiting block 61. The supporting and limiting block 61 can buffer the impact force of the permanent magnet plate 33 through the flexible pad layer 611, and can block the collision between the permanent magnet plate 33 and the electromagnet 34, so that the permanent magnet plate 33 is not easy to collide with the electromagnet 34 due to accidents or failures.

[0064] Referring to Figure 3 , further, in order to adjust the position of the supporting and limiting block 61, the supporting and limiting assembly 6 further includes a supporting and limiting electric cylinder 62 fixedly connected to the adjusting box 31, and the supporting and limiting block 61 is fixedly connected to the movable end of the supporting and limiting electric cylinder 62. The supporting and limiting electric cylinder 62 is used to drive the supporting and limiting block 61 to move along the sliding direction of the connecting column 32, so that the supporting and limiting block 61 can support the connecting column 32 when the connecting column 32 slides to the highest position.

[0065] Before the whole system is powered off, the material feeding to the conveying belt is stopped, the conveying belt can be restored to the original state, the connecting column 32 can slide up to the highest position, the supporting cylinder 62 can extend out, the supporting cylinder 62 can drive the supporting block 61 to move up, so that the supporting block 61 can support the connecting column 32 which can freely slide down; after the whole system is powered on, the supporting cylinder 62 can drive the supporting block 61 to move down, so that the supporting block 61 can play a role in preventing collision.

[0066] With reference to Figure 2 In order to prevent the detection rod 22 from damaging the conveying belt, a roller 222 is rotatably connected to the top end of the detection rod 22 and abuts against the conveying belt; the detection rod 22 abuts against the conveying belt through the roller 222, so that the sliding friction between the detection rod 22 and the conveying belt can be converted into rolling friction, thereby preventing the detection rod 22 from sliding and rubbing on the conveying belt and damaging the conveying belt.

[0067] The implementation principle of the adaptive conveying belt longitudinal tearing three-dimensional scanning and identifying system is as follows: in use, the conveying belt is deformed in an arc shape under the gravity and impact force of the material, the conveying belt pushes and presses the detection rod 22 to slide down, under the constant magnetic driving force of the second magnetic wheel 234 on the first magnetic wheel 233, the detection rod 22 abuts against the conveying belt with a constant abutting force, so as to accurately detect the deformation of the conveying belt and avoid damaging the conveying belt; when the detection rod 22 slides, the size of the current of the electromagnet 34 is controlled by adjusting the contact 351 and the resistance slide rail 352, so that the electromagnet 34 can drive the connecting column 32 to adjust the same displacement synchronously and in the same direction as the detection rod 22; when the connecting column 32 slides, the position of the first compensation block 51 is adjusted by the compensation connecting rod 533, the sliding block 532 and the telescopic rod 531, so as to adjust the distance between the second compensation block 52 and the longitudinal tearing identifying main body 4, so that the position adjustment of the longitudinal tearing identifying main body 4 can be compensated, thereby the longitudinal tearing identifying main body 4 can maintain the best shooting distance under dynamic adjustment without expanding the shooting gap of the protective shell, and the longitudinal tearing identifying main body 4 can meet the shooting distance of the high-speed three-dimensional camera without expanding the shooting gap of the protective shell.

[0068] The above are preferred embodiments of the present application, which do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape and principle of the present application should be covered within the protection scope of the present application.

Claims

1. An adaptive three-dimensional scanning and recognition system for longitudinal tearing of conveyor belts, characterized in that: It includes a support plate (1), a detection component (2), an adjustment component (3), a longitudinal tear identification body (4), and a compensation component (5). The support plate (1) is connected to the frame of the conveyor belt and is located directly below the material receiving area of ​​the conveyor belt. The detection assembly (2) includes a detection sleeve (21), a detection rod (22), and a constant force drive unit (23): The detection sleeve (21) is connected to the support plate (1), the detection rod (22) slides through the detection sleeve (21), and the constant force drive part (23) is connected to the detection sleeve (21) and the detection rod (22) respectively. The constant force drive part (23) is used to drive the detection rod (22) to slide out of the detection sleeve (21) and abut against the conveyor belt with a constant driving force. The adjustment assembly (3) includes an adjustment box (31), a connecting post (32), a permanent magnet plate (33), an electromagnet (34), and a current adjustment part (35); The adjustment box (31) is connected to the support plate (1), the connecting column (32) slides through the top of the adjustment box (31), the permanent magnet plate (33) is connected to the end of the connecting column (32) located inside the adjustment box (31), the electromagnet (34) is connected to the bottom of the adjustment box (31), the electromagnet (34) and the permanent magnet plate (33) are arranged opposite each other, and the polarities of the energized electromagnet (34) and the permanent magnet plate (33) are the same on the side closest to each other; The current adjustment unit (35) is connected to the detection rod (22) and electrically connected to the electromagnet (34). The current adjustment unit (35) controls the current in the electromagnet (34) based on the sliding stroke of the detection rod (22) relative to the detection sleeve (21) so as to control the detection rod (22) and the connecting column (32) to slide synchronously and in the same direction with the same displacement. The longitudinal tear identification body (4) is set on the connecting column (32). The longitudinal tear identification body (4) is used to scan and identify defects on the surface of the conveyor belt, and the shooting position is located at the center of the material receiving area of ​​the conveyor belt. The compensation component (5) is connected between the longitudinal tear identification body (4) and the connecting column (32). The compensation component (5) is used to compensate for the adjustment displacement difference of the longitudinal tear identification body (4). The adjustment displacement difference is the vertical displacement difference between the shooting position of the longitudinal tear identification body (4) on the conveyor belt and the contact position of the detection rod (22) on the conveyor belt. The sliding displacement of the detection rod (22) plus the adjustment displacement difference is equal to the moving displacement of the longitudinal tear identification body (4).

2. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 1, characterized in that: The detection sleeve (21) is rotatably connected to the support plate (1). The constant force drive unit (23) includes a slider (231), a guide rod (232), a first magnetic wheel (233), and a second magnetic wheel (234). The slider (231) is connected to the detection rod (22). The slider (231) is slidably disposed in a spiral groove (211) opened on the inner wall of the detection sleeve (21). The guide rod (232) is a polygonal rod and is connected to the support plate (1). The guide rod (232) is slidably set in the guide groove (221) opened in the sliding direction of the detection rod (22). The first magnetic wheel (233) is connected to the detection sleeve (21). The second magnetic wheel (234) is located on one side of the first magnetic wheel (233). The second magnetic wheel (234) is connected to a motor (235). The motor (235) is mounted on the support plate (1). The second magnetic wheel (234) is used to magnetically drive the first magnetic wheel (233) to rotate.

3. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 2, characterized in that: The current regulating unit (35) includes an regulating contact (351), a resistance slide rail (352), and a power supply (353). The regulating contact (351) is embedded in the detection rod (22), the resistance slide rail (352) is embedded in the guide rod (232), the regulating contact (351) abuts against the resistance slide rail (352), and the regulating contact (351) is electrically connected to the power supply (353). The electromagnet (34) is provided with two terminals (341) for energizing. The top of the resistance slide rail (352) is electrically connected to one of the terminals (341) on the electromagnet (34), and the other terminal (341) on the electromagnet (34) is electrically connected to the power supply (353). The power supply (353), the regulating contact (351), the resistance slide rail (352), and the electromagnet (34) form a complete current loop.

4. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 1, characterized in that: The compensation component (5) includes a first compensation block (51), a second compensation block (52), and a compensation power unit (53). Two first compensation blocks (51) are symmetrically arranged and are slidably connected to the longitudinal tear identification body (4). The two first compensation blocks (51) are provided with a first compensation slope (511) at their respective ends. The second compensation block (52) is connected to the connecting post (32) and located between the two first compensation blocks (51). The second compensation block (52) is provided with two second compensation slopes (521) adapted to the first compensation slope (511). The second compensation slopes (521) are fitted and abutted against the first compensation slopes (511) one by one. The compensation power unit (53) is used to drive the two first compensation blocks (51) to slide away from each other when the connecting post (32) slides down, and the compensation power unit (53) is used to drive the two first compensation blocks (51) to slide towards each other when the connecting post (32) slides up.

5. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 4, characterized in that: The compensation power unit (53) includes a telescopic rod (531), a sliding block (532), and a compensation connecting rod (533). There are two telescopic rods (531), two sliding blocks (532), and two compensation connecting rods (533). The telescopic rod (531) corresponds one-to-one with the first compensation block (51). The movable end of the telescopic rod (531) is connected to the first compensation block (51). The sliding block (532) is connected one-to-one with the telescopic rod (531) and is slidably connected to the adjustment box (31). One end of the compensation connecting rod (533) is hinged to the sliding block (532) and the other end is hinged to the connecting column (32). The compensation connecting rod (533) is inclined. When the connecting column (32) slides down, the included angle of the two compensation connecting rods (533) increases, so as to drive the two sliding blocks (532) to slide in a direction away from each other.

6. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 1, characterized in that: The adjustment box (31) is provided with a limiting assembly (6), which includes a limiting block (61). The limiting block (61) is connected to the adjustment box (31) and is located between the electromagnet (34) and the permanent magnet plate (33). The limiting block (61) is located on the downward trajectory of the connecting column (32). A flexible pad (611) is provided on the side of the limiting block (61) close to the permanent magnet plate (33).

7. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 6, characterized in that: The limiting assembly (6) also includes a limiting electric cylinder (62), which is connected to the adjusting box (31). The limiting block (61) is connected to the movable end of the limiting electric cylinder (62). The limiting electric cylinder (62) is used to drive the limiting block (61) to move along the sliding direction of the connecting column (32) so that the limiting block (61) can support the connecting column (32) when the connecting column (32) slides to the highest position.

8. The adaptive conveyor belt longitudinal tear three-dimensional scanning and recognition system according to claim 1, characterized in that: A roller (222) is rotatably connected to the top of the detection rod (22), and the roller (222) abuts against the conveyor belt.

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