Deviation rectifying device, deviation rectifying system and deviation rectifying method of pipe belt machine

Abstract

The invention discloses a deviation rectifying device, a deviation rectifying system and a deviation rectifying method of a pipe belt conveyor, the deviation rectifying device realizes rotation of a deviation rectifying carrier roller relative to a deviation rectifying support by means of push-pull of a push part of a deviation rectifying driving part and spherical hinge linkage of a deviation rectifying transmission part, the structure is simple, and the maintenance cost is low. According to the deviation rectifying system and method, the multiple sensors sequentially arranged in the circumferential direction of the rubber belt of the pipe belt machine are used for detecting the distance between the sensors and the opposite rubber belt area, the deflection condition of the rubber belt is obtained through output signals of the sensors, the deviation rectifying device is controlled to rectify deviation according to the deflection condition of the rubber belt, and automatic deviation rectifying is achieved.

Description

Technical Field

[0001] The present application relates to the technical field of belt conveyor pipes, and in particular to a deviation correction device, a deviation correction system and a deviation correction method for belt conveyor pipes. Background Art

[0002] The belt of the belt conveyor may deviate during operation, that is, the overlap position of the belt deviates from the top to the sides or even below. The deviation of the belt will cause abnormal wear, material spillage and other problems.

[0003] At present, a typical automatic deviation correction device sets a marker with a clearly different color from the pipe belt on the outer circumference of the pipe belt, detects the position of the marker through a photosensitive sensor to determine the deflection of the pipe belt, and then drives the pipe belt roller to rotate through a gear assembly to achieve deviation correction. However, there are problems such as low accuracy, high cost, and poor stability.

[0004] How to avoid some or all of the disadvantages of the above-mentioned automatic deviation correction device is a technical problem that needs to be solved by technical personnel in this field. Summary of the invention

[0005] In order to solve the above technical problems, the present application provides a deviation correction device for a belt conveyor, the deviation correction device comprises a deviation correction bracket, a deviation correction driving member, a deviation correction transmission part, and a plurality of deviation correction rollers arranged in sequence along the circumference of the belt of the belt conveyor, each of the deviation correction rollers comprises a deviation correction roller frame rotatably connected to the deviation correction bracket and a deviation correction roller body rotatably connected to the deviation correction roller frame;

[0006] The deflection correction driving component includes a telescopic pushing part, and the deflection correction transmission part includes an active part, a driven part and a linkage part. The active part is fixedly connected to the pushing part, and the active part is fixedly connected to the deflection correction roller frame of one of the deflection correction rollers, so that the active part drives the deflection correction roller to rotate relative to the deflection correction frame through the telescopic driving of the pushing part, and each of the remaining deflection correction rollers is respectively fixedly connected to one of the driven parts, and the active part and each of the driven parts are connected to the linkage part with a ball joint, so that the driven part is linked with the active part through the linkage part.

[0007] An embodiment of a deviation-correcting device for a belt conveyor, the belt conveyor comprises a truss, a first fixing frame fixedly connected to the truss, and a conveying roller installed on the first fixing frame, and the adhesive tape passes through the first fixing frame;

[0008] The correcting bracket is fixedly connected to the first fixed frame, and the correcting roller also serves as the conveying roller; or, the correcting device also includes a second fixed frame, the correcting bracket is fixedly connected to the second fixed frame, the second fixed frame is fixedly connected to the truss, the second fixed frame and the first fixed frame are arranged at intervals, and the pipe belt passes through the second fixed frame.

[0009] The present application also provides a deviation correction system for a belt conveyor, the deviation correction system comprising a deviation correction device, a detection device and a control device, the detection device comprising a plurality of sensors arranged in sequence along the circumference of the belt of the belt conveyor, the plurality of sensors being used to detect the distance between the belt area facing the belt, the control device being communicatively connected with the plurality of sensors, the control device being able to derive the deflection condition of the belt according to the output signals of the plurality of sensors, the control device being communicatively connected with the deviation correction driving member of the deviation correction device, the control device being able to control the deviation correction driving member according to the deflection condition of the belt.

[0010] In one embodiment of a belt conveyor deviation correction system, the detection device includes a detection bracket, the detection bracket surrounds the outer periphery of the belt and is coaxial with the belt, the detection bracket is fixed to the truss of the belt conveyor, and the multiple sensors are fixedly connected to the detection bracket.

[0011] In one embodiment of the deviation correction system of the belt conveyor, the control device comprises:

[0012] A measuring module, the measuring module is in communication with the plurality of sensors and is capable of calculating the distance between each sensor and the tape area facing the sensor according to an output signal of each sensor;

[0013] a data processing module, the data processing module being in communication with the measuring module and capable of calculating a difference between a distance between each of the sensors and the tape area facing the sensor detected in a previous detection time period and a distance between each of the sensors and the tape area facing the sensor detected in a subsequent detection time period;

[0014] A judgment module, which is in communication with the data processing module and can compare the difference value corresponding to each sensor with a preset value;

[0015] A control module is communicatively connected with the judgment module, and can judge the deflection of the adhesive tape according to the position of the sensor whose difference is greater than the preset value, and can control the deviation-correcting drive component according to the deflection of the adhesive tape.

[0016] An implementation manner of a deviation correction system for a belt conveyor, the control module includes multiple sub-control modules, each of the sub-control modules is preset with parameters that limit the movement amplitude of the deviation correction drive member, each of the sub-control modules is communicatively connected with the deviation correction drive member, each of the sub-control modules can control the deviation correction drive member to move according to the preset parameters, the multiple sub-control modules are all communicatively connected with the judgment module, the movement amplitude of the deviation correction drive member limited by the preset parameters in the multiple sub-control modules is reduced successively, and when the deflection of the belt exceeds a preset angle, the multiple sub-control modules can control the movement of the deviation correction drive member in sequence according to the current deflection of the belt and the movement amplitude is reduced successively.

[0017] An embodiment of a deviation correction system for a belt conveyor, the deviation correction system includes a plurality of detection devices and a plurality of deviation correction devices, the plurality of detection devices are arranged in sequence from front to back along the axial direction of the belt, and the plurality of deviation correction devices are dispersedly arranged between adjacent detection devices and behind the rearmost detection device.

[0018] The present application also provides a method for correcting the deviation of a belt conveyor, comprising the following steps:

[0019] S1, using a plurality of sensors arranged in sequence along the circumference of the belt pipe to detect the distance between the belt pipe area and the belt pipe machine facing the belt pipe area;

[0020] S2, calculating the difference between the distance between each of the sensors and the facing tape area detected in the previous detection time period and the distance between each of the sensors and the facing tape area detected in the next detection time period;

[0021] S3, comparing the difference value corresponding to each sensor with a preset value;

[0022] S4, judging the deflection of the tape according to the position of the sensor where the difference is greater than the preset value;

[0023] S5. Controlling the deflection correction driving component of the deflection correction device according to the deflection condition of the adhesive tape.

[0024] In one implementation of the deviation correction method for a belt conveyor, each sensor performs multiple detections within the same detection time period, sorts the multiple detection data corresponding to each sensor within the same detection time period by size, takes the middle data as the detection data of each sensor within the detection time period, and calculates the difference in S2 using the middle data.

[0025] An implementation method of a belt conveyor correction method, in S5, when the belt deflection exceeds a preset angle, the correction drive component is controlled to act in sequence according to the current deflection of the belt and the action amplitude is reduced in sequence, and the current deflection of the belt is detected again before the next control and after the previous control.

[0026] The correction device provided by the present application has multiple correction rollers that correct the deviation together, so the correction effect is good. The active part of the correction transmission part is fixedly connected to the pushing part of the correction drive member, and the active part and the driven part of the correction transmission part are linked by a linkage part and are connected to the linkage part by a ball joint. Compared with the gear transmission, this structure is simpler in structure, so the construction cost is low, and the transmission stability is better, so the noise is small, the correction accuracy is high, and it is maintenance-free, so the use cost is low.

[0027] The correction system and correction method provided in the present application detect the distance between the belt area facing the belt conveyor through multiple sensors arranged in sequence along the circumference of the belt, obtain the deflection of the belt through the output signal of the sensor, and control the correction device to perform correction according to the deflection of the belt, thereby realizing automatic correction. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of an embodiment of the deviation correction system provided in the present application installed on a belt conveyor;

[0029] Figure 2 for Figure 1 An enlarged view of the position where the deviation correction device is installed;

[0030] Figure 3 for Figure 2 Right view of;

[0031] Figure 4 for Figure 2 Left view of

[0032] Figure 5 A cross-sectional view of the connection position between the deviation-correcting roller bracket and the deviation-correcting bracket;

[0033] Figure 6 for Figure 1 A left side view of the detection device;

[0034] Figure 7 A three-dimensional diagram of another embodiment of the deviation correction system provided by the present application installed on a belt conveyor;

[0035] Figure 8 A modular schematic diagram of an embodiment of a control device for a deviation correction system provided in the present application;

[0036] Fig. 9 A logic block diagram of an embodiment of the correction method provided in this application.

[0037] The following are the descriptions of the reference numerals: 1 deviation correction device, 101 deviation correction bracket, 102 deviation correction driving member, 1021 fixing part, 1022 pushing part, 103 deviation correction transmission part, 1031 active part, 1032 driven part, 1033 linkage part, 104 deviation correction roller, 1041 deviation correction roller body, 1042 deviation correction roller bracket, 105 second fixing bracket; 2 detection device, 201 sensor, 202 detection bracket; 3 belt conveyor, 301 adhesive belt, 301a overlapping area, 302 truss, 303 conveying roller, 3031 conveying roller body, 304 first fixed frame. DETAILED DESCRIPTION

[0038] The present application provides a deviation correction device, a deviation correction system and a deviation correction method for a belt conveyor. In order to enable technicians in this technical field to better understand the technical solution of the present application, the technical solution of the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0039] First introduce the pipe belt machine 3, reference Figure 1 .

[0040] The pipe conveyor 3 includes an adhesive tape 301, a truss 302, a conveying roller 303 and a first fixed frame 304. There are two upper and lower adhesive tapes 301 in the figure, and the adhesive tapes 301 are rolled into a tube, and an overlap area is formed at the top. A plurality of first fixed frames 304 are fixed on the truss 302 at intervals in sequence, and the upper and lower adhesive tapes 301 pass through each first fixed frame 304 in sequence. Each first fixed frame 304 is connected to two upper and lower groups of conveying rollers 303, and the upper and lower groups of conveying rollers 303 are respectively used to convey the upper and lower adhesive tapes 301, and each group has a plurality of conveying rollers 303 arranged in sequence along the circumference of the adhesive tape 301. Each conveying roller 303 includes a conveying roller body 3031 and a conveying roller frame (not shown in the figure), and the conveying roller frame is fixedly connected to the first fixed frame 304, and the conveying roller body 3031 is rotatably connected to the conveying roller frame, and the outer cylindrical surface of the conveying roller body 3031 contacts the outer cylindrical surface of the adhesive tape 301 to play a conveying role.

[0041] During the operation of the belt conveyor, the belt 301 may deviate, that is, the overlapping area of ​​the belt 301 deviates from the top to the sides or even to the bottom, causing abnormal wear, material spillage and other problems.

[0042] The following is an introduction to the deviation correction device 1 provided by the present application. Figure 2-Figure 5 .

[0043] The deviation correction device 1 provided in the present application includes a deviation correction bracket 101 , a plurality of deviation correction rollers 104 arranged in sequence along the circumference of the adhesive belt 301 , a deviation correction driving member 102 and a deviation correction transmission unit 103 .

[0044] After the deflection correction device 1 is installed on the belt conveyor 3, the position of the deflection correction bracket 101 is fixed. During operation, multiple deflection correction rollers 104 simultaneously correct the belt 301, which can achieve a better deflection correction effect. The deflection correction device 1 in the figure has three deflection correction rollers 104. In actual implementation, the number of deflection correction rollers 104 of the deflection correction device 1 can also be two or more than three.

[0045] Each deflection correction roller 104 includes a deflection correction roller frame 1042 and a deflection correction roller body 1041. The deflection correction roller frame 1042 is rotatably connected to the deflection correction bracket 101, and the rotation axis of the deflection correction roller frame 1042 is substantially perpendicular to the outer cylindrical surface of the adhesive tape 301. The deflection correction roller body 1041 is rotatably connected to the deflection correction roller frame 1042, and the outer cylindrical surface of the deflection correction roller body 1041 contacts the outer cylindrical surface of the adhesive tape 301. When the deflection correction roller frame 1042 rotates relative to the deflection correction bracket 101, the deflection correction roller body 1041 rotates with the deflection correction roller frame 1042, and at this time, the outer cylindrical surface of the deflection correction roller body 1041 causes the adhesive tape 301 to deflect due to friction, thereby being able to correct the deflection of the adhesive tape 301.

[0046] The deflection-correcting driving member 102 includes a fixed portion 1021 and a retractable pushing portion 1022, that is, the pushing portion 1022 can extend or retract relative to the fixed portion 1021. In the figure, the deflection-correcting driving member 102 is an electric push rod, which is small in size and easy to arrange. The housing of the electric push rod is the fixed portion 1021, and the push rod of the electric push rod is the pushing portion 1022. In actual implementation, the deflection-correcting driving member 102 is not limited to the electric push rod, and can also be, for example, a cylinder, a hydraulic cylinder, etc.

[0047] The correction transmission part 103 includes an active part 1031, a driven part 1032 and a linkage part 1033. The pushing part 1022 is fixedly connected to the active part 1031, and the active part 1031 is fixedly connected to the correction roller frame 1042 of one of the correction rollers 104. When the pushing part 1022 is extended or retracted, it can drive the active part 1031 to swing, and the swing of the active part 1031 drives the correction roller 104 to rotate relative to the correction bracket 101. Each of the remaining correction rollers 104 is respectively fixedly connected to a driven part 1032. The active part 1031 and each driven part 1032 are connected to the linkage part 1033 by a ball joint, so that the driven part 1032 is linked with the active part 1031 through the linkage part 1033. When the active part 1031 swings under the drive of the pushing part 1022 , each driven part 1032 is driven to swing together through the linkage part 1033 . The swing of the driven part 1032 drives the connected deviation correcting roller 104 to rotate relative to the deviation correcting bracket 101 . Figure 2 In the embodiment, the active part 1031 and the two driven parts 1032 are rod-shaped structures, the active part 1031 and the two driven parts 1032 are parallel, and one end of the active part 1031 and the two driven parts 1032 ( Figure 2 The linkage part 1033 is roughly in an "L" shape, and three ball head connection holes are provided on the linkage part 1033. The three ball head connection holes are distributed in a triangle, and the three ball head connection holes are respectively matched with the ball heads at one end of the active part 1031 and the two driven parts 1032, so as to realize the ball joint connection between the active part 1031 and the driven part 1032 and the linkage part 1033. In actual implementation, the positions of the ball heads and the matching ball head connection holes can be swapped, and the shapes of the linkage part 1033, the active part 1031 and the driven part 1032 can be flexibly designed according to actual needs.

[0048] In the above-mentioned deflection correction device 1, a plurality of deflection correction rollers 104 correct deflection together, so the deflection correction effect is good. The active part 1031 of the deflection correction transmission part 103 is fixedly connected with the pushing part 1022 of the deflection correction driving member 102, and the active part 1031 and the driven part 1032 of the deflection correction transmission part 103 are linked through the linkage part 1033 and are connected to the linkage part 1033 by a ball joint. Compared with the gear transmission, this structure is simpler in structure, so the construction cost is low, and the transmission stability is better, so the noise is small, the deflection correction accuracy is high, and it is maintenance-free, so the use cost is low.

[0049] In some embodiments, such as Figure 2 and Figure 3 As shown, the deflection correction bracket 101 of the deflection correction device 1 is fixedly connected to the first fixed bracket 304 inherent to the belt conveyor 3, and the conveying roller 303 inherent to the belt conveyor 3 is transformed into a rotating part and a fixed part, so that the conveying roller 303 inherent to the belt conveyor 3 becomes a deflection correction roller 104, the transformed rotating part is used as a deflection correction roller bracket 1042, and the transformed fixed part is used as the deflection correction bracket 101. The deflection correction roller 104 is transformed from the conveying roller 303 inherent to the belt conveyor 3, which is more conducive to reducing the construction cost. Furthermore, in this case, the deflection correction drive component 102 and the deflection correction roller 104 can be respectively located on opposite sides of the first fixed frame 304, the deflection correction drive component 102 and the linkage part 1033 are located on the same side of the first fixed frame 304, and the active part 1031 and the driven part 1032 pass through the first fixed frame 304, so that the deflection correction drive component 102 and the linkage part 1033 will not interfere with the rotation of the deflection correction roller 104.

[0050] In some embodiments, such as Figure 5As shown, the deflection correction device 1 further includes a second fixing frame 105, the deflection correction bracket 101 is fixedly connected to the second fixing frame 105, the second fixing frame 105 is fixedly connected to the truss 302, the second fixing frame 105 and the first fixing frame 304 are arranged at intervals, and the adhesive tape 301 passes through the second fixing frame 105. Further, in this case, the deflection correction driving member 102 and the deflection correction roller 104 can be respectively located on opposite sides of the second fixing frame 105, the deflection correction driving member 102 and the linkage part 1033 are located on the same side of the second fixing frame, and the active part 1031 and the driven part 1032 pass through the second fixing frame 105, so that the deflection correction driving member 102 and the linkage part 1033 will not interfere with the rotation of the deflection correction roller 104.

[0051] The correction system provided by this application is introduced below.

[0052] The correction system provided in the present application includes a correction device, a detection device 2 and a control device.

[0053] like Figure 6 As shown, the detection device 2 includes a plurality of sensors 201 sequentially arranged along the circumference of the adhesive tape 301, and the plurality of sensors 201 are used to detect the distance between the regions facing the adhesive tape 301. As the adhesive tape 301 deflects, the overlapping regions 301a of the adhesive tape 301 will face different sensors.

[0054] The control device is in communication connection with the plurality of sensors 201, and the control device can obtain the deflection of the adhesive tape 301 according to the output signals of the plurality of sensors 201. The distance detected when the sensor 201 is facing the overlapping area 301a of the adhesive tape 301 is smaller than the distance detected when the sensor 201 is not facing the overlapping area 301a of the adhesive tape 301, so it is possible to determine which sensor 201 is currently facing the overlapping area 301a of the adhesive tape 301 according to the difference between the two distances, and further, it is possible to determine the position of the overlapping area 301a of the adhesive tape 301 according to the position of the sensor 201 currently facing the overlapping area 301a of the adhesive tape 301, thereby determining the deflection of the adhesive tape 301.

[0055] The control device is also connected to the deflection correction drive of the deflection correction device in communication, and the control device can control the deflection correction drive according to the deflection of the adhesive tape 301. For example, when the deflection correction drive includes a pusher, if the adhesive tape 301 is not deflected, the pusher of the deflection correction drive does not move, and if the adhesive tape 301 is deflected, the pusher of the deflection correction drive is controlled to extend or retract according to the deflection direction of the adhesive tape 301, and the extension distance or retraction distance of the pusher of the deflection correction drive is controlled according to the deflection angle of the adhesive tape 301.

[0056] The above-mentioned correction system can realize automatic correction, avoiding the time-consuming and labor-intensive problem of manual correction.

[0057] In some embodiments, the correction device adopts the correction device 1 provided in the present application.

[0058] In some embodiments, the sensor 201 is an ultrasonic sensor, which has precise distance measurement and high detection accuracy.

[0059] In some embodiments, such as Figure 6 As shown, the detection device 2 includes a detection bracket 202, which surrounds the outer periphery of the tape 301 and is coaxial with the tape 301. The detection bracket 202 is fixedly connected to the truss 302, so that there is no need to set up an additional platform to fix the detection bracket 202. The multiple sensors 201 are fixedly connected to the detection bracket 202. In the figure, eight sensors 201 are provided, which are numbered along the instantaneous clockwise direction as follows: sensor ①, sensor ②, sensor ③, sensor ④, sensor ⑤, sensor ⑥, sensor ⑦, and sensor ⑧. The detection bracket 202 is an octagonal frame, and the eight sensors 201 are respectively fixedly connected to the inner sides of the eight frame edges of the octagonal frame, and two adjacent sensors 201 are approximately 45°.

[0060] In some embodiments, the control device includes a measuring module, a data processing module, a judgment module and a control module.

[0061] The measuring module is in communication connection with the plurality of sensors 201 , and can calculate the distance between each sensor 201 and the area of ​​the tape 301 facing it according to the output signal of each sensor 201 .

[0062] Among them, the data processing module is connected in communication with the measurement module, and can calculate the difference between the distance between each sensor 201 and the area of ​​the tape 301 facing it detected in the previous detection time period and the distance between each sensor 201 and the area of ​​the tape 301 facing it detected in the next detection time period. In some embodiments, the data processing module includes a sorting submodule, each sensor 201 performs multiple detections in the same detection time period, and the sorting submodule sorts the multiple detection data corresponding to each sensor 201 in the same detection time period by size, and takes the middle value as the detection data of each sensor 201 in the detection time period. This design can improve the detection accuracy. For example, each sensor 201 performs five detections in a detection time period, and performs a detection every 2 seconds. Each sensor 201 obtains five detection data. The sorting submodule sorts the five detection data corresponding to each sensor 201 from small to large, takes the middle detection data as the detection data of each sensor 201 in the detection time period, and calculates the difference with the middle detection data.

[0063] The judgment module is connected in communication with the data processing module, and can compare the difference corresponding to each sensor 201 with the preset value. The distance detected when the sensor 201 is facing the overlapping area 301a of the tape 301 is smaller than the distance detected when the sensor 201 is not facing the overlapping area 301a of the tape 301, which is close to the wall thickness of a layer of tape 301. Therefore, the preset value can be set to be equal to or slightly less than the wall thickness of a layer of tape 301. If the tape 301 does not deviate, the difference corresponding to each sensor 201 is smaller than the preset value; if the tape 301 deviates, the difference corresponding to one of the sensors 201 is greater than or equal to the preset value. Therefore, the sensor 201 whose difference is greater than or equal to the preset value faces the overlapping area 301a of the tape 301.

[0064] The control module is connected in communication with the judgment module, and can judge the deflection of the adhesive tape 301 according to the position of the sensor 201 whose difference is greater than the preset value. For example, if the sensor 201 whose difference is greater than the preset value is sensor 201 No. ④ in the figure, the overlapping area 301a of the current adhesive tape 301 is approximately located at the position directly opposite to sensor 201 No. ④, so it is judged that the adhesive tape 301 is deflected 135° clockwise. The control module is also connected in communication with the correction drive of the correction device, and can control the correction drive of the correction device according to the deflection of the adhesive tape 301.

[0065] In some embodiments, the control module includes multiple sub-control modules. Parameters that limit the movement amplitude of the correction drive are preset in each sub-control module. Each sub-control module is communicatively connected to the correction drive of the correction device, and can control the correction drive to move according to the preset parameters. The multiple sub-control modules are all communicatively connected to the judgment module, and the movement amplitude of the correction drive limited by the parameters preset in the multiple sub-control modules is reduced successively. When the deflection angle of the tape exceeds the preset angle, the multiple sub-control modules can control the movement of the correction drive in sequence according to the current deflection of the tape, and the movement amplitude is reduced successively. In this way, gradual and progressive correction can be achieved, and the correction effect is better.

[0066] For example, two sub-control modules are provided, namely, the first sub-control module and the second sub-control module. The action of the deflection correction drive member is the extension and retraction action of the pusher. The first sub-control module is preset with a 3-second extension and retraction time, and the second sub-control module is preset with a 1-second extension and retraction time, and the preset angle is 30°. When it is determined that the adhesive tape 301 deflects more than 30° clockwise, the first sub-control module first controls the pusher of the deflection correction drive member to extend for 3 seconds, and then the detection device 2 detects the deflection of the adhesive tape 301 again. If it is determined that the adhesive tape 301 still deflects more than 30° clockwise, the second sub-control module controls the pusher of the deflection correction drive member to extend for 1 second. If it is determined that the adhesive tape 301 has become counterclockwise deflected, the second sub-control module controls the pusher of the deflection correction drive member to retract for 1 second.

[0067] In some embodiments, the deviation correction system includes an alarm. When it is determined that the adhesive tape 301 deflects beyond a preset angle, the alarm sounds an alarm until the deflection angle of the adhesive tape 301 is less than the preset angle, and the alarm stops. The alarm may be an audible alarm and / or a visual alarm. Two alarms may be provided, namely a first alarm and a second alarm. When it is determined that the adhesive tape 301 deflects beyond a preset angle clockwise, the first alarm sounds an alarm, and when it is determined that the adhesive tape 301 deflects beyond a preset angle counterclockwise, the second alarm sounds an alarm.

[0068] In some embodiments, the correction system includes a plurality of detection devices 2 and a plurality of correction devices. The plurality of detection devices 2 are arranged in sequence from front to back along the axial direction of the tape 301, and the plurality of correction devices are dispersedly arranged between adjacent detection devices 2 and behind the detection device 2 at the rear end. The spacing distance between adjacent detection devices 2 can be designed according to the curvature of the tape 301. In the interval with a smaller curvature of the tape 301, the spacing distance between adjacent detection devices 2 is larger, for example, 50m. When the adjacent detection devices 2 are spaced 50m apart, a correction device can be arranged every 20m after each detection device 2. In the interval with a larger curvature of the tape 301, the spacing distance between adjacent detection devices 2 is smaller, for example, 30m. When the adjacent detection devices 2 are spaced 30m apart, a correction device can be arranged every 10m after each detection device 2. By reasonably designing the arrangement intervals of the detection devices 2 and the correction devices, the reliability and stability of the correction system can be guaranteed.

[0069] The correction method provided by this application is introduced below.

[0070] The correction method provided in this application comprises the following steps:

[0071] S1. Use a plurality of sensors sequentially arranged along the circumference of the tape 301 to detect the distance between the sensor and the area of ​​the tape 301 facing the sensor.

[0072] S2. Calculate the difference between the distance between each sensor and the area of ​​the tape 301 facing it detected in the previous detection time period and the distance between each sensor and the area of ​​the tape 301 facing it detected in the next detection time period.

[0073] S3. Compare the difference value corresponding to each sensor with the preset value. The distance detected when the sensor 201 is facing the overlapping area 301a of the tape 301 is smaller than the distance detected when the sensor 201 is not facing the overlapping area 301a of the tape 301, which is close to the wall thickness of one layer of the tape 301. Therefore, the preset value can be set to be equal to or slightly less than the wall thickness of one layer of the tape 301. If the tape 301 is not deflected, the difference value corresponding to each sensor is smaller than the preset value. If the tape 301 is deflected, the difference value corresponding to one of the sensors is greater than or equal to the preset value, so that it can be determined that the sensor is the sensor currently facing the overlapping area 301a of the tape 301.

[0074] S4. Determine the deflection of the tape 301 according to the position of the sensor whose difference is greater than the preset value.

[0075] S5. Control the deflection correction driving element of the deflection correction device according to the deflection condition of the adhesive tape 301.

[0076] In some embodiments, in S2, each sensor 201 performs multiple detections in the same detection time period, and the multiple detection data corresponding to each sensor 201 in the same detection time period are sorted by size, and the intermediate data are taken as the detection data of each sensor 201 in the detection time period, and the difference is calculated with the intermediate data. This design can improve the detection accuracy. For example, each sensor 201 performs five detections in a detection time period, and a detection is performed every 2 seconds. Each sensor 201 obtains five detection data, and the five detection data corresponding to each sensor 201 are sorted from small to large, and the intermediate data are taken as the detection data of each sensor 201 in the detection time period.

[0077] In some embodiments, in S5, when the deflection angle of the adhesive tape exceeds a preset angle, the deflection correction driving member is sequentially controlled to move according to the current deflection of the adhesive tape, and the movement amplitude is sequentially reduced, and the current deflection of the adhesive tape is detected again before the last control and after the previous control. In this way, gradual deflection correction can be achieved, and the deflection correction effect is better.

[0078] For example, the action of the correcting drive component is the extension and retraction action of the pushing part, and the preset angle is 30°. When it is determined that the tape 301 deflects counterclockwise by more than 30°, the pushing part of the correcting drive component is first controlled to retract a longer distance, and then the deflection of the tape 301 is detected again. If it is determined that the tape 301 is still deflected clockwise by more than 30°, the pushing part of the correcting drive component is controlled to continue to retract a shorter distance. If it is determined that the tape 301 becomes deflected clockwise, the pushing part of the correcting drive component is controlled to extend a shorter distance.

[0079] In some embodiments, when the deflection angle of the adhesive tape exceeds a preset angle, an alarm is sounded to alert on-site personnel.

[0080] The above specific examples are used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core ideas of the present application. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present application, several improvements and modifications can be made to the present application, and these improvements and modifications also fall within the scope of protection of the present application.

Claims

1. A deviation correction device for a belt conveyor, characterized in that: The correcting device includes a correcting bracket, a correcting driving member, a correcting transmission part and a plurality of correcting rollers arranged in sequence along the circumference of the belt of the belt conveyor, each of the correcting rollers includes a correcting roller frame rotatably connected to the correcting bracket and a correcting roller body rotatably connected to the correcting roller frame; the correcting driving member includes a telescopic pushing member, the correcting transmission part includes an active part, a driven part and a linkage part, the active part is fixedly connected to the pushing member, the active part is fixedly connected to the correcting roller frame of one of the correcting rollers, so that the active part is driven by the telescopic driving member of the pushing member to drive the correcting roller to rotate relative to the correcting bracket, and each of the remaining correcting rollers is respectively fixedly connected to one of the driven parts, the active part and each of the driven parts are ball-jointedly connected to the linkage part, so that the driven part is linked to the active part through the linkage part.

2. The deviation correcting device for a belt conveyor according to claim 1, characterized in that: The belt conveyor comprises a truss, a first fixing frame fixedly connected to the truss, and a conveying roller installed on the first fixing frame, and the belt passes through the first fixing frame; The correcting bracket is fixedly connected to the first fixed frame, and the correcting roller also serves as the conveying roller; or, the correcting device also includes a second fixed frame, the correcting bracket is fixedly connected to the second fixed frame, the second fixed frame is fixedly connected to the truss, the second fixed frame and the first fixed frame are arranged at intervals, and the pipe belt passes through the second fixed frame.

3. A deviation correction system for a belt conveyor, characterized in that: The deflection correction system includes a deflection correction device, a detection device and a control device. The detection device includes a plurality of sensors arranged in sequence along the circumference of the belt conveyor, and the plurality of sensors are used to detect the distance between the belt area facing the belt conveyor. The control device is communicatively connected with the plurality of sensors, and the control device can derive the deflection condition of the belt according to the output signals of the plurality of sensors. The control device is communicatively connected with the deflection correction driving member of the deflection correction device, and the control device can control the deflection correction driving member according to the deflection condition of the belt.

4. The belt conveyor deviation correction system according to claim 3 is characterized in that: The detection device comprises a detection bracket, the detection bracket surrounds the outer circumference of the adhesive tape and is coaxial with the adhesive tape, the detection bracket is fixedly connected to the truss of the belt conveyor, and the multiple sensors are fixedly connected to the detection bracket.

5. The deviation correction system of the belt conveyor according to claim 3 is characterized in that: The control device comprises: A measuring module, the measuring module is in communication with the plurality of sensors and is capable of calculating the distance between each sensor and the tape area facing the sensor according to an output signal of each sensor; a data processing module, the data processing module being in communication with the measuring module and capable of calculating a difference between a distance between each of the sensors and the tape area facing the sensor detected in a previous detection time period and a distance between each of the sensors and the tape area facing the sensor detected in a subsequent detection time period; A judgment module, which is in communication with the data processing module and can compare the difference value corresponding to each sensor with a preset value; A control module is communicatively connected with the judgment module, and can judge the deflection of the adhesive tape according to the position of the sensor whose difference is greater than the preset value, and can control the deviation-correcting drive component according to the deflection of the adhesive tape.

6. The deviation correction system of the belt conveyor according to claim 5 is characterized in that: The control module includes multiple sub-control modules, each of which is preset with parameters that limit the movement amplitude of the correcting drive member, each of which is communicatively connected to the correcting drive member, and each of which can control the correcting drive member to move according to the preset parameters. The multiple sub-control modules are all communicatively connected to the judgment module, and the movement amplitude of the correcting drive member limited by the preset parameters in the multiple sub-control modules is reduced successively. When the deflection of the tape exceeds a preset angle, the multiple sub-control modules can control the movement of the correcting drive member in sequence according to the current deflection of the tape, and the movement amplitude is reduced successively.

7. The belt conveyor deviation correction system according to any one of claims 3 to 6, characterized in that: The correcting system includes a plurality of the detecting devices and a plurality of the correcting devices. The plurality of the detecting devices are arranged in sequence from front to back along the axial direction of the tape, and the plurality of the correcting devices are dispersedly arranged between adjacent detecting devices and behind the last detecting device.

8. A deviation correction method for a belt conveyor, characterized in that: The following steps are involved: S1, using a plurality of sensors arranged in sequence along the circumference of the belt pipe to detect the distance between the belt pipe area and the belt pipe machine; S2, calculating the difference between the distance between each of the sensors and the facing tape area detected in the previous detection time period and the distance between each of the sensors and the facing tape area detected in the next detection time period; S3, comparing the difference value corresponding to each sensor with a preset value; S4, judging the deflection of the tape according to the position of the sensor where the difference is greater than the preset value; S5. Controlling the deflection correction driving component of the deflection correction device according to the deflection condition of the adhesive tape.

9. The deviation correction method for a belt conveyor according to claim 8, characterized in that: Each sensor performs multiple detections within the same detection time period, sorts the multiple detection data corresponding to each sensor within the same detection time period by size, takes the middle data as the detection data of each sensor within the detection time period, and calculates the difference value with the middle data in S2.

10. The deviation correction method for a belt conveyor according to claim 8 or 9, characterized in that: In S5, when the deflection of the adhesive tape exceeds a preset angle, the deviation-correcting driving member is controlled to act in sequence according to the current deflection of the adhesive tape, and the action amplitude is reduced in sequence, and the current deflection of the adhesive tape is detected again before the next control and after the previous control.

Images