Deviation correction system and method for belt conveyor

Abstract

The invention belongs to the technical field of transportation equipment, and particularly relates to a deviation rectifying system and method for a belt conveyor, and the deviation rectifying system comprises a light emitting device which is used for emitting light to cover and irradiate an upper belt; the light sensing device is used for receiving a light signal of the light emitting device and sending the received light signal to the main control chip; the laser ranging device is mounted at a tail roller of the belt conveyor and used for detecting whether the roller deviates or not and sending a deviation result to the main control chip; the main control chip is used for generating a deviation correction instruction according to the received optical signal and the roller deviation result; and the deviation rectifying device is used for adjusting the position of the roller according to the received deviation rectifying instruction and / or adjusting the position of the belt according to the received deviation rectifying instruction so as to realize belt deviation rectifying. Adjustment of the position of the belt is considered, the position of the roller is monitored in real time through the laser distance measuring device, it is ensured that the roller can be adjusted in time when deviating, and the deviation rectifying effect is improved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of transportation equipment, and particularly relates to a deviation correction system and method of a belt conveyor. BACKGROUND

[0002] As a key equipment for coal transportation, the belt conveyor undertakes an important task of coal transportation. However, the problem of belt deviation frequently occurs during the operation of the belt conveyor, which not only affects the normal transportation of materials, but also may cause equipment damage, material leakage, reduced production efficiency, and even safety accidents.

[0003] The traditional belt protection device of the belt conveyor can usually only detect the action of the belt, and cannot realize automatic detection and automatic adjustment of the belt deviation. Once the belt deviates, the protection device still needs to be adjusted manually after action, which not only increases the operation difficulty, but also greatly increases the labor intensity. For example, in the coal industry, the length of the belt conveyor is usually long, and once the belt deviates, manual adjustment not only consumes time and effort, but also has certain safety hazards.

[0004] In addition, although the existing automatic deviation correction device can realize the automatic deviation correction function to a certain extent, it has some deficiencies. For example, some devices only adjust the roller support, without considering the influence of the drum on the running of the belt. This single adjustment method may lead to unsatisfactory deviation correction effect, and even exacerbate the deviation of the belt in some cases. SUMMARY

[0005] In view of the defects in the prior art that the existing automatic deviation correction device only adjusts the roller support without considering the influence of the drum on the running of the belt, and this single adjustment method may lead to unsatisfactory deviation correction effect, and even exacerbate the deviation of the belt in some cases, the present application provides a deviation correction system and method of a belt conveyor to solve the above technical problems.

[0006] In the first aspect, the present application provides a deviation correction system of a belt conveyor, comprising: a light emitting device installed above the upper belt of the belt conveyor, for emitting light rays with the same width as the upper belt to the normal running position of the belt, to complete the covering irradiation of the upper belt; a light sensing device installed below the upper belt of the belt conveyor, for receiving the light signal of the light emitting device and sending the received light signal to the main control chip; a laser ranging device installed at the tail drum of the belt conveyor, for detecting whether the drum deviates, and sending the deviation result to the main control chip; a main control chip for generating a deviation correction instruction according to the received light signal and the drum deviation result; The correction device is used for adjusting the position of the roller according to the received correction instruction and / or adjusting the position of the belt according to the received correction instruction to realize belt correction.

[0007] The further improvement of the technical solution is that the light emitting device comprises: The light source is installed above the belt of the belt conveyor through a pair of fixed supports arranged on both sides of the belt, and is used for emitting light covering the upper belt. The light adjusting module is used for adjusting the emission angle and coverage range of the light source to adapt to belts of different widths. The light sensing device comprises: The light sensitive assembly is configured below the upper belt, and is used for receiving the light signal emitted by the light emitting device; each group of light sensitive assemblies comprises a first light sensitive element, a second light sensitive element and a third light sensitive element, the first light sensitive element, the second light sensitive element and the third light sensitive element are arranged in sequence along the width direction of the belt, and the third light sensitive element is farthest from the belt. The signal converter is connected to the light sensitive assembly at the input end and connected to the main control chip through the signal line at the output end, and is used for converting the light signal received by the light sensitive assembly into an electric signal and sending the converted electric signal to the main control chip.

[0008] The further improvement of the technical solution is that the laser ranging device comprises: The laser emitter is used for emitting a laser signal to the roller; The laser receiver is used for receiving the laser signal reflected by the roller; The ranging processor is connected to the laser emitter and the laser receiver, and is used for calculating the distance according to the emitted and received laser signals; judging whether the roller is deviated according to the calculated real-time distance; and sending the deviation result to the main control chip; The ranging support is installed on the ground on the side of the roller away from the light emitting device, and the laser emitter is installed on the ranging support and is in the same horizontal plane as the end of the roller; the laser receiver and the ranging processor are both installed on the ranging support.

[0009] The further improvement of the technical solution is that the correction device comprises a hydraulic assembly, a roller correction assembly and a belt correction assembly installed below the upper belt, the control end of the hydraulic assembly is connected to the main control chip, and the roller correction assembly and the belt correction assembly are both connected to the hydraulic assembly; the hydraulic assembly provides hydraulic power for the roller correction assembly and / or the belt correction assembly according to the correction instruction of the main control chip, so as to realize roller correction and / or belt correction.

[0010] The further improvement of the technical scheme is that the belt deviation rectifying assembly comprises a U-shaped hydraulic support and two hydraulic cylinders arranged at two ends of the U-shaped hydraulic support and hinged to the U-shaped hydraulic support, one inclined support is hinged to each end of the hydraulic cylinder away from the hydraulic support, a horizontal support is arranged between the two inclined supports, and the horizontal support is hinged to the two inclined supports; a flat roller is sleeved on the horizontal support, and a side roller is sleeved on the inclined support. The hydraulic support is provided with an oil supply pipe and an oil return pipe connected to the hydraulic assembly, the hydraulic cylinder is connected to the hydraulic assembly through the oil supply pipe and the oil return pipe, and the oil supply pipe is provided with an electromagnetic valve.

[0011] The further improvement of the technical scheme is that the drum deviation rectifying assembly comprises a hydraulic push rod mounted on both sides of the drum, and the hydraulic push rod is arranged in parallel with the drum roller shaft; the hydraulic push rod is connected to the hydraulic assembly, and the hydraulic push rod is in abutment with the drum when the hydraulic assembly supplies oil to the hydraulic push rod.

[0012] In the second aspect, the present application provides a deviation rectifying method of a belt conveyor, which is suitable for the deviation rectifying system of any one of the above-mentioned belt conveyors, and the method comprises the following steps: The light emitting device installed above the belt of the belt conveyor emits light to cover and irradiate the upper belt; The light sensing device installed below the belt of the belt conveyor receives the light signal of the light emitting device and sends the received light signal to the master control chip; The laser ranging device installed at the tail drum of the belt conveyor judges whether the drum is deviated according to the calculated distance information, and sends the deviation result to the master control chip; The master control chip generates a deviation rectifying instruction according to the received light signal and the drum deviation result; The deviation rectifying device adjusts the position of the drum and / or adjusts the position of the belt according to the received deviation rectifying instruction to realize belt deviation rectification.

[0013] The further improvement of the technical scheme is that the method further comprises the following steps: The light sensing device divides the light signal into three areas for detection, which are a first sensing area corresponding to the first photosensitive element, a second sensing area corresponding to the second photosensitive element, and a third sensing area corresponding to the third photosensitive element, and the first sensing area, the second sensing area and the third sensing area are sequentially away from the position of the normal operation of the belt; The master control chip calculates the light signal intensity of the corresponding area according to the sensing signal of each photosensitive element, and determines the main sensing area according to the light signal intensity; The master control chip generates a corresponding deviation rectifying instruction according to the main sensing area.

[0014] The further improvement of the technical solution has that the main control chip calculates the light signal intensity of the corresponding area according to the sensing signal of each photosensitive element, and determines the main sensing area according to the light signal intensity. The formula for calculating the light signal intensity is: ; wherein, is the light signal intensity received by the i th sensing area, i = 1, 2, 3; is the light power received by the i th photosensitive element; is the light receiving area of the i th photosensitive element; The formula for determining the main sensing area is: ; ; wherein, is the main sensing area; , and are the light signal intensity received by the first sensing area, the light signal intensity received by the second sensing area, and the light signal intensity received by the third sensing area, respectively; , and are the distance between the first sensing area, the second sensing area, and the third sensing area and the normal running position of the belt, respectively; , and are the weight coefficients of the first sensing area, the second sensing area, and the third sensing area, respectively.

[0015] The further improvement of the technical solution has that the main control chip generates corresponding correction instructions according to the main sensing area, and the method comprises: When the main sensing area is the first sensing area, the main control chip generates a first correction instruction, and the correction device adjusts the included angle between the inclined support and the ground to a first preset angle through the hydraulic cylinder according to the first correction instruction; When the main sensing area is the second sensing area, the main control chip generates a second correction instruction, and the correction device adjusts the included angle between the inclined support and the ground to a second preset angle through the hydraulic cylinder according to the second correction instruction; When the main sensing area is the third sensing area, the main control chip generates a third correction instruction, and the correction device adjusts the included angle between the inclined support and the ground to a third preset angle through the hydraulic cylinder according to the third correction instruction; The first preset angle is smaller than the second preset angle, and the second preset angle is smaller than the third preset angle.

[0016] The beneficial effects of the present application are: The traditional belt conveyor belt protection device can only detect the action, cannot automatically adjust the belt deviation, needs manual intervention, increases the operation difficulty and labor intensity. The automatic detection and deviation correction of the belt deviation are realized through the integration of the light emitting device, the light sensing device, the laser ranging device and the main control chip, manual intervention is not needed, the labor intensity of workers is significantly reduced, and the work efficiency is improved.

[0017] The existing automatic deviation correction device only adjusts the roller support, ignores the influence of the roller on the belt running, and the deviation correction effect is limited. The belt position adjustment is considered, and the roller position is monitored in real time through the laser ranging device, so that the belt deviation problem is comprehensively solved, and the deviation correction effect is improved.

[0018] The light emitting device of the present application comprises a light source and a light adjusting module, which can adjust the emission angle and coverage range according to belts of different widths, ensuring the adaptability and flexibility of the system. This design makes the system widely applicable to belt conveyors of different specifications and working conditions, improving the versatility and practicality of the system.

[0019] By dividing the light signals received by the light sensing device into three regions for detection, the present application realizes accurate judgment of the belt deviation degree, and generates corresponding deviation correction instructions according to different regions. This zoned deviation correction method makes the deviation correction action more accurate and effective, avoiding the problems of excessive adjustment or insufficient adjustment.

[0020] The deviation correction device of the present application comprises a hydraulic assembly, a roller deviation correction assembly and a belt deviation correction assembly, the assemblies are closely connected and the structure is reasonable, ensuring the stability and reliability of the system. Especially in the belt deviation correction assembly, through the ingenious design of the U-shaped hydraulic support, the hydraulic cylinder, the inclined support column and the horizontal support column, stable support and accurate adjustment of the belt are realized. BRIEF DESCRIPTION OF DRAWINGS

[0021] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiments or prior art description will be briefly introduced as follows, and obviously, other drawings can be obtained by those skilled in the art without creative labor.

[0022] Figure 1 The structural schematic diagram of the system of one embodiment of the present application.

[0023] Figure 2 The structural schematic diagram of the belt deviation correction assembly.

[0024] Figure 3 The schematic flowchart of the method of one embodiment of the present application.

[0025] 110 is a light emitting device, 111 is a fixed support, 120 is a light sensing device, 130 is a laser ranging device, 131 is a ranging support, 141 is a belt deviation correction assembly, 1411 is a U-shaped hydraulic support, 1412 is a hydraulic cylinder, 1413 is an inclined support column, 1414 is a horizontal support column, 1415 is a flat roller, 1416 is a side roller, 142 is a hydraulic assembly, 1421 is a solenoid valve, 210 is an upper belt, and 220 is a roller. DETAILED DESCRIPTION

[0026] In order to make the purpose, features and advantages of the present application more obvious and easy to understand, the technical solutions in the present application will be clearly and completely described below in combination with the drawings in the specific embodiments. Obviously, the following described embodiments are only some of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which the present application belongs. The terminology used in the description of the present application herein is only for the purpose of describing specific embodiments and is not intended to limit the present application.

[0028] As shown in Figure 1 and Figure 2 , the present application provides a deviation correction system of a belt conveyor, comprising: a light emitting device 110 installed above an upper belt 210 of the belt conveyor, for emitting light rays with the same width as the upper belt 210 to the normal running position of the belt, to complete the covering irradiation of the upper belt 210; a light sensing device 120 installed below the upper belt 210 of the belt conveyor, for receiving the light signal of the light emitting device 110 and sending the received light signal to a master control chip; a laser ranging device 130 installed at a tail roller 220 of the belt conveyor, for detecting whether the roller 220 is deviated and sending the deviation result to the master control chip; a master control chip for generating a deviation correction instruction according to the received light signal and the deviation result of the roller 220; the master control chip adopts a single-chip microcomputer with model number STM32F103ZET6 (or adopts a programmable logic controller (PLC)); a deviation correction device for adjusting the position of the roller 220 and / or adjusting the position of the belt according to the received deviation correction instruction to realize the deviation correction of the belt.

[0029] The light emitting device 110 comprises: A light source is installed above the belt 210 of the belt conveyor through a pair of fixed supports 111 arranged on both sides of the belt, for emitting light rays covering the upper belt 210; A light adjusting module is used to adjust the emission angle and coverage range of the light source to adapt to belts of different widths.

[0030] Specifically, the light source adopts a high-brightness LED lamp group (a high-brightness LED lamp group composed of multiple LED lamp beads to ensure the uniformity and intensity of light rays), which has the characteristics of high brightness, low energy consumption, and long service life, and can provide stable light output. The light source is installed above the belt 210 of the belt conveyor through a pair of fixed supports 111. The fixed supports 111 are designed to be adjustable, which can be adjusted according to the width and position of the belt to ensure that the light source can uniformly cover the entire upper belt 210. The light rays emitted by the light source are used to cover the upper belt 210, and when the belt deviates, the light rays will pass through the belt to reach the light sensing device 120 below, thereby triggering the deviation correction mechanism.

[0031] The light adjusting module includes an angle adjusting mechanism and a coverage adjusting mechanism. The angle adjusting mechanism is used to adjust the emission angle of the light source, and the coverage adjusting mechanism is used to adjust the coverage range of the light rays. The angle adjusting mechanism adopts a manual adjusting knob, which adjusts the emission angle of the light source by rotating the knob. The adjustment range is 0° to 30°, which can adapt to belts of different inclination angles. The coverage adjusting mechanism adopts a telescopic light guide plate, which adjusts the coverage range of the light rays by adjusting the length and angle of the light guide plate. The adjustment range is 1 meter to 3 meters, which can adapt to belts of different widths. The light adjusting module is fixed on the fixed supports 111 of the light source through a connecting piece, and the emission angle and coverage range of the light source can be adjusted manually or automatically. The light adjusting module can dynamically adjust the emission angle and coverage range of the light source according to the width and running state of the belt, ensuring that the light rays can uniformly cover the entire upper belt 210, and improving the adaptability and flexibility of the system.

[0032] The light adjusting module can dynamically adjust the emission angle and coverage range according to belts of different widths, ensuring that the light rays can uniformly cover the entire upper belt 210, improving the adaptability and flexibility of the system. Through manual or automatic adjustment, the emission angle and coverage range of the light source can be accurately adjusted to ensure that the light sensing device 120 can accurately detect the deviation of the belt. The high-brightness LED lamp group has the characteristics of high brightness, low energy consumption, and long service life, and can provide stable light output to ensure long-term stable operation of the system.

[0033] In addition, the light sensing device 120 comprises: The light sensitive assembly is arranged below the upper belt 210 and is used to receive the light signal emitted by the light emitting device 110. Each light sensitive assembly includes a first light sensitive element, a second light sensitive element and a third light sensitive element. The first light sensitive element, the second light sensitive element and the third light sensitive element are arranged in sequence along the width direction of the belt, and the third light sensitive element is farthest from the belt. The signal converter is connected to the light sensitive assembly at the input end and is connected to the main control chip through the signal line at the output end. The signal converter is used to convert the light signal received by the light sensitive assembly into an electric signal and send the converted electric signal to the main control chip.

[0034] Specifically, the two groups of light sensitive assemblies are arranged at the lower edge of the upper belt 210 and are symmetrically arranged about the belt. In order to ensure detection reliability, the first light sensitive element is arranged with a redundant overlapping portion with the upper belt. The first light sensitive element, the second light sensitive element and the third light sensitive element all adopt a high-sensitivity photodiode with a model number of BPW21. The light sensitive element is installed below the upper belt 210 of the belt conveyor and is fixed on the rack through a fixed support 111, so as to ensure that the light signal can be received through the belt. The light sensitive element receives the light signal emitted by the light emitting device 110 and converts it into a current signal.

[0035] The signal converter includes a current-voltage conversion circuit and a signal amplification circuit. The current-voltage conversion circuit adopts an operational amplifier (model number: OPA234) to realize current-voltage conversion, and the signal amplification circuit adopts a two-stage amplification circuit to amplify the converted voltage signal to a level suitable for the main control chip processing. The signal converter is installed in the control box of the belt conveyor and is close to the main control chip. The signal converter converts the light signal output by the light sensitive element into an electric signal and sends the converted electric signal to the main control chip through the signal line.

[0036] The light sensitive element is connected to the input end of the signal converter through a wire and converts the detected light signal into a current signal. The signal converter sends the converted voltage signal to the main control chip through the signal line, and the main control chip judges the deviation of the belt according to the received electric signal.

[0037] Further, the light sensing device 120 is divided into three regions (a first sensing region, a second sensing region and a third sensing region), and one light sensitive element is installed in each region to detect the light signal at different positions. Through the partition detection, the main control chip can judge the deviation degree of the belt according to the received signal and generate a corresponding deviation correction instruction.

[0038] The application can more comprehensively and meticulously obtain light information of different positions of the belt, and provides more abundant data support for accurately judging the belt deviation. The main control chip can accurately judge the deviation degree of the belt according to the signals of the light sensitive elements in different areas. Compared with the detection mode of a single light sensitive element, the sub-area detection can more accurately locate the deviation position and degree, thereby generating more accurate and effective deviation correction instructions, improving the accuracy and efficiency of the deviation correction system, and better guaranteeing the normal operation of the belt conveyor.

[0039] In addition, the laser ranging device 130 comprises: a laser transmitter for transmitting a laser signal to the drum 220; a laser receiver for receiving the laser signal reflected by the drum 220; a ranging processor connected to the laser transmitter and the laser receiver, for calculating the distance according to the transmitted and received laser signals, judging whether the drum 220 is deviated according to the calculated real-time distance, and sending the deviation result to the main control chip; a ranging support 131 installed on the ground away from the light emitting device 110 on the side of the drum 220, the laser transmitter is installed on the ranging support 131 and is in the same horizontal plane with the end of the drum 220; the laser receiver and the ranging processor are both installed on the ranging support 131.

[0040] Specifically, the laser transmitter adopts a semiconductor laser (model: LDM600), which has the characteristics of high precision, low energy consumption and long service life, and can emit stable laser signals. The laser transmitter is installed on the ranging support 131 and is in the same horizontal plane with the end of the drum 220, ensuring that the laser signal can accurately irradiate the surface of the drum 220. The laser transmitter transmits a laser signal to the drum 220 for measuring the distance between the drum 220 and the ranging device.

[0041] The laser receiver adopts a high-sensitivity photoelectric detector (model: PD300), which can receive the reflected laser signal. The laser receiver is installed on the ranging support 131 and corresponds to the laser transmitter, ensuring that it can receive the laser signal reflected from the drum 220. The laser receiver receives the laser signal reflected by the drum 220 and converts it into an electrical signal.

[0042] The ranging processor adopts a high-performance microprocessor (model: STM32F407), which has fast calculation and processing capability and can calculate the distance according to the transmitted and received laser signals. The ranging processor is installed on the ranging support 131 and connected to the laser transmitter and the laser receiver. The ranging processor calculates the distance according to the transmitted and received laser signals, and judges whether the drum 220 is deviated according to the calculated real-time distance. The deviation result is sent to the main control chip through a signal line.

[0043] The ranging support 131 is made of high-strength aluminum alloy material and has good stability and durability. The support is provided with mounting holes for fixing the laser transmitter, the laser receiver and the ranging processor. The ranging support 131 is installed on the ground away from the light emitting device 110 on the side of the roller 220, ensuring that the laser transmitter and the end of the roller 220 are in the same horizontal plane. The ranging support 131 provides a mounting platform for the laser transmitter, the laser receiver and the ranging processor, ensuring the stability of the ranging device and the measurement accuracy.

[0044] In addition, the deviation correction device includes a hydraulic assembly 142, a roller deviation correction assembly and a belt deviation correction assembly 141 installed below the upper belt 210, the control end of the hydraulic assembly 142 is connected to the main control chip, and the roller deviation correction assembly and the belt deviation correction assembly 141 are both connected to the hydraulic assembly 142; the hydraulic assembly 142 provides hydraulic power for the roller deviation correction assembly and / or the belt deviation correction assembly 141 according to the deviation correction instruction of the main control chip, to realize the deviation correction of the roller 220 and / or the belt.

[0045] The deviation correction device can quickly and accurately correct the deviation of the roller 220 and the belt according to the deviation correction instruction of the main control chip through the cooperative work of the hydraulic assembly 142, the roller deviation correction assembly and the belt deviation correction assembly 141, effectively preventing the belt deviation, ensuring the stable and efficient operation of the belt conveyor, reducing equipment failures and production accidents caused by belt deviation, and improving production efficiency and equipment service life.

[0046] Further, the belt deviation correction assembly 141 includes a U-shaped hydraulic support 1411 and two hydraulic cylinders 1412 arranged at both ends of the U-shaped hydraulic support 1411 and hinged to the U-shaped hydraulic support 1411, and each hydraulic cylinder 1412 is hinged to an inclined strut 1413 away from the hydraulic support, a horizontal strut 1414 is arranged between the two inclined struts 1413, and the horizontal strut 1414 is hinged to the two inclined struts 1413; a flat roller 1415 is sleeved on the horizontal strut 1414, and a side roller 1416 is sleeved on the inclined strut 1413.

[0047] Specifically, the U-shaped hydraulic support 1411 is made of high-strength steel material and has good load-bearing capacity and stability. The support has a U-shaped structure and is provided with hinge holes at both ends for connecting the hydraulic cylinders 1412. The U-shaped hydraulic support 1411 is installed on the rack of the belt conveyor by fixing bolts, ensuring its position fixed and stable. As the main structure of the belt deviation correction assembly 141, it provides support and connection function, ensuring the stable installation of the hydraulic cylinders 1412 and the inclined struts 1413.

[0048] Each hydraulic cylinder 1412 includes a cylinder body, a piston rod, and a seal, manufactured with high precision to ensure its reliability and durability. One end of the hydraulic cylinder 1412 is connected to both ends of the U-shaped hydraulic support 1411 through a hinged connection, and the other end is connected to the inclined support column 1413 through a hinged connection. The hydraulic cylinder 1412 is powered by the hydraulic system, pushing the inclined support column 1413 to move, thereby adjusting the running position of the belt.

[0049] The inclined support column 1413 is made of high-strength steel, with good bending resistance and stability. The column has a hinged hole for connecting the hydraulic cylinder 1412 and the horizontal support column 1414. The inclined support column 1413 is connected to the piston rod end of the hydraulic cylinder 1412 through a hinged connection, and the other end is connected to the horizontal support column 1414 through a hinged connection. The inclined support column 1413 moves under the push of the hydraulic cylinder 1412, and adjusts the angle with the horizontal support column 1414 to correct the deviation of the belt.

[0050] The horizontal support column 1414 is made of high-strength steel, with good load-bearing capacity and stability. The column has a hinged hole for connecting the inclined support column 1413. The horizontal support column 1414 is connected to the middle of the two inclined support columns 1413 through a hinged connection, ensuring its position is fixed and stable. The horizontal support column 1414 serves as a support structure, ensuring the stable installation of the flat roller 1415, and adjusting the angle of the inclined support column 1413 to correct the deviation of the belt.

[0051] The flat roller 1415 and the side roller 1416 are made of high-strength steel, with a special surface treatment for good wear resistance and corrosion resistance. The flat roller 1415 is fitted on the horizontal support column 1414, and the side roller 1416 is fitted on the inclined support column 1413, installed through bearings and fixed bolts to ensure free rotation. The flat roller 1415 is used to support the belt, ensuring smooth running of the belt; the side roller 1416 is used to adjust the lateral position of the belt, assisting in the correction function.

[0052] The U-shaped hydraulic support 1411, the hydraulic cylinder 1412, the inclined support column 1413, the horizontal support column 1414, the flat roller 1415, and the side roller 1416 form a reasonable and compact structure. The components work together to form an organic whole, enabling multi-dimensional adjustment of the belt and effectively correcting the deviation of the belt.

[0053] Further, the hydraulic support is provided with an oil supply pipe and an oil return pipe connected to the hydraulic assembly 142, and the hydraulic cylinder 1412 is connected to the hydraulic assembly 142 through the oil supply pipe and the oil return pipe; and an electromagnetic valve 1421 (i.e. oil supply valve) is arranged on the oil supply pipe, and an oil return valve is arranged on the oil return pipe.

[0054] Specifically, the hydraulic support is made of high-strength steel material, and has a passage for the oil supply pipe and the oil return pipe inside, ensuring smooth flow of hydraulic oil. The support has a U-shaped structure, and has a hinge hole at each end for connecting the hydraulic cylinder 1412. The hydraulic support is installed on the rack of the belt conveyor through fixing bolts, ensuring its fixed and stable position. The hydraulic support not only provides mechanical support, but also serves as a pipeline carrier for the hydraulic system, ensuring the supply and return of hydraulic oil.

[0055] The oil supply pipe and the oil return pipe are made of high-pressure-resistant and oil-resistant rubber hoses, ensuring smooth flow of hydraulic oil and reliability of the system. The oil supply pipe and the oil return pipe are connected to the hydraulic assembly 142 (including an oil tank and an oil pump) through quick couplings, ensuring the reliability of the connection and the ability of quick maintenance. The oil supply pipe delivers hydraulic oil from the oil tank to the hydraulic cylinder 1412 through the oil pump, and the oil return pipe returns hydraulic oil from the hydraulic cylinder 1412 to the oil tank, forming a complete hydraulic circuit.

[0056] The hydraulic cylinder 1412 includes a cylinder body, a piston rod, and a sealing element, and is manufactured with high precision to ensure its reliability and durability. The hydraulic cylinder 1412 is connected to the two ends of the hydraulic support in a hinged manner, and the other end is connected to the tilt support 1413 in a hinged manner. The hydraulic cylinder 1412 pushes and retracts the piston rod by the pressure of hydraulic oil, thereby adjusting the angle of the tilt support 1413 to correct the deviation of the belt.

[0057] The electromagnetic valve 1421 is a high-precision electromagnetic control valve that can quickly switch the flow direction of hydraulic oil according to the signal of the main control chip. The electromagnetic valve 1421 is installed on the oil supply pipe and connected to the main control chip through an electromagnetic coil, ensuring that the main control chip can accurately control the flow direction of hydraulic oil. The electromagnetic valve 1421 controls the flow direction of hydraulic oil according to the signal of the main control chip, realizes the extension and retraction of the hydraulic cylinder 1412, and adjusts the running position of the belt.

[0058] In addition, the drum deviation correction assembly includes hydraulic push rods installed on both sides of the drum 220, and the hydraulic push rods are arranged in parallel with the drum shafts of the drum 220. The hydraulic push rods are connected to the hydraulic assembly 142, and abut against the drum 220 when the hydraulic assembly 142 supplies oil to the hydraulic push rods.

[0059] The hydraulic push rod includes a cylinder (a double-acting hydraulic cylinder with a model number CYL-200), a piston rod, and a sealing element, and is manufactured by using a high-precision manufacturing process to ensure its reliability and durability. The cylinder and the piston rod of the hydraulic push rod are made of high-strength steel and have a surface treated in a special way, thus having good wear resistance and corrosion resistance. The hydraulic push rod is arranged in parallel with the roller shaft of the roller 220 on the fixed support 111 on both sides of the roller 220. One end of the hydraulic push rod is connected to the fixed support 111 in a hinged manner, and the other end is connected to the side of the roller 220 in a hinged manner. The hydraulic push rod drives the piston rod to extend or retract by the pressure of the hydraulic oil, thereby adjusting the position of the roller 220 and achieving the deviation correction of the roller 220.

[0060] The fixed support 111 is made of high-strength steel and has good load-carrying capacity and stability. The support is provided with a mounting hole for fixing the hydraulic push rod. The fixed support 111 is installed on the rack of the belt conveyor by welding or bolt connection, ensuring that its position is fixed and stable. The fixed support 111 provides a mounting platform for the hydraulic push rod, ensuring the stable installation and reliable operation of the hydraulic push rod.

[0061] The hydraulic assembly 142 includes an oil tank, an oil pump, and an electromagnetic valve 1421. The oil tank is used to store hydraulic oil, the oil pump (model number: GP-100) is driven by a motor to deliver hydraulic oil to the hydraulic push rod, and the electromagnetic valve 1421 (model number: EMV-200) is used to control the flow direction of the hydraulic oil. The oil tank and the oil pump are installed on the rack of the belt conveyor by the fixed support 111, and the electromagnetic valve 1421 is installed on the oil supply pipe and connected to the main control chip by an electromagnetic coil. The hydraulic assembly 142 provides power for the hydraulic push rod and controls the flow direction of the hydraulic oil by the electromagnetic valve 1421 to realize the extension and retraction of the hydraulic push rod.

[0062] The roller deviation correction assembly can accurately and quickly adjust the position of the roller 220 by the power provided by the hydraulic assembly 142 through the hydraulic push rod according to the instructions of the main control chip, effectively solve the deviation problem of the roller 220, ensure the stable operation of the belt conveyor, reduce the belt wear and material spillage caused by the deviation of the roller 220, and improve the production efficiency and service life of the equipment.

[0063] Figure 3 is a schematic flowchart of a deviation correction method of a belt conveyor provided by the present application. In the flowchart, Figure 3 The execution subject can be a deviation correction system of a belt conveyor. The order of steps in the flowchart can be changed according to different needs, and some steps can be omitted.

[0064] As Figure 3 shown, the method comprises: In step 310, the light emitting device installed above the belt of the belt conveyor emits light to cover and irradiate the upper belt. Step 320: The light sensor installed under the belt of the belt conveyor receives the light signal from the light emitting device and sends the received light signal to the main control chip; Step 330: The laser rangefinder installed at the tail roller of the belt conveyor determines whether the roller is misaligned based on the calculated distance information and sends the misalignment result to the main control chip. Step 340: The main control chip generates a correction command based on the received optical signal and the roller misalignment result; Step 350: The belt alignment device adjusts the position of the roller and / or the position of the belt according to the received alignment command to achieve belt alignment.

[0065] In addition, the method also includes: The light sensing device divides the light signal into three regions for detection: the first sensing region corresponding to the first photosensitive element, the second sensing region corresponding to the second photosensitive element, and the third sensing region corresponding to the third photosensitive element. The first sensing region, the second sensing region, and the third sensing region are successively moved away from the position when the belt is running normally. The main control chip calculates the light signal intensity of the corresponding area based on the sensing signal of each photosensitive element, and determines the main sensing area based on the light signal intensity; The main control chip generates corresponding correction instructions based on the main sensing areas.

[0066] Specifically, the main control chip calculates the light signal intensity of the corresponding area based on the sensing signal of each photosensitive element, and determines the main sensing area based on the light signal intensity; the method includes: The formula for calculating optical signal intensity is: ;in, Let be the intensity of the light signal received in the i-th sensing area, where i = 1, 2, 3; Let be the optical power received by the i-th photosensitive element; Let be the light-receiving area of ​​the i-th photosensitive element; The formula for determining the main sensing area is: ; in, This is the main sensing area; , and These are the light signal intensities received by the first sensing area, the second sensing area, and the third sensing area, respectively. , and These are the distances from the first sensing area, the second sensing area, the third sensing area, and the normal operating position of the belt, respectively. , and are weight coefficients of the first sensing area, the second sensing area, and the third sensing area, respectively.

[0067] Further, the main control chip generates a corresponding deviation correction instruction according to the main sensing area, and the method comprises: When the main sensing area is the first sensing area, the main control chip generates a first deviation correction instruction, and the deviation correction device adjusts the included angle between the inclined support and the ground to a first preset angle through the hydraulic cylinder according to the first deviation correction instruction; When the main sensing area is the second sensing area, the main control chip generates a second deviation correction instruction, and the deviation correction device adjusts the included angle between the inclined support and the ground to a second preset angle through the hydraulic cylinder according to the second deviation correction instruction; When the main sensing area is the third sensing area, the main control chip generates a third deviation correction instruction, and the deviation correction device adjusts the included angle between the inclined support and the ground to a third preset angle through the hydraulic cylinder according to the third deviation correction instruction; The first preset angle is smaller than the second preset angle, and the second preset angle is smaller than the third preset angle. Specifically, when the main sensing area is the first sensing area, the main control chip transmits the corresponding first deviation correction instruction to the deviation correction device, the deviation correction device starts to work, controls the inclined support to rise to 45°, and when the light receiving device cannot receive a signal, the main control chip controls the oil return valve to open, and the inclined support returns to the original position.

[0068] When the main sensing area is the second sensing area, the main control chip transmits the corresponding second deviation correction instruction to the deviation correction device, the deviation correction device starts to work, controls the inclined support to rise to 60°, and when the main sensing area changes to the first sensing area, the deviation correction device executes the program corresponding to the first sensing area, the main control chip controls the oil return valve to open, and the inclined support falls to 45°, until the light receiving device cannot receive a signal, the main control chip controls the oil return valve to open again, and the inclined support returns to the original position.

[0069] When the main sensing area is the first sensing area, the main control chip transmits the corresponding third deviation correction instruction to the deviation correction device, the deviation correction device starts to work, controls the inclined support to rise to 90°, and when the main sensing area changes to the second sensing area, the deviation correction device executes the program corresponding to the second sensing area, the main control chip controls the oil return valve to open, and the inclined support falls to 60°, when the main sensing area changes to the first sensing area, the deviation correction device executes the program corresponding to the first sensing area, the main control chip controls the oil return valve to open, and the inclined support falls to 45°, until the light receiving device cannot receive a signal, the main control chip controls the oil return valve to open again, and the inclined support returns to the original position.

[0070] By dividing the light receiving device into different regions and controlling the inclination of the inclined pillar according to the combination of the received signals, the correction is realized in stages. This staging method can accurately adjust the belt deviation according to the severity of the belt deviation, avoiding over-correction or under-correction, improving the accuracy and effectiveness of the correction.

[0071] During the correction process, the correction action is adjusted in real time according to the change of the light receiving device signal. For example, when a certain area signal is not received, the correction device will gradually execute the corresponding program of the previous stage, and the inclined pillar will fall back in stages. This dynamic adjustment mechanism can flexibly respond to various changes in the belt deviation process, whether it is the change of the deviation speed or the fluctuation of the deviation degree, and can respond in time to ensure that the belt always runs on the correct track.

[0072] The main control chip controls the correction device and the oil return valve according to the signal of the light receiving device, forming a complete signal feedback control system. The light receiving device monitors the position information of the belt in real time and transmits it to the main control chip as an electrical signal. The main control chip analyzes and processes the signal according to the preset program and then sends corresponding control instructions. This closed-loop control system can correct the deviation in time to ensure the stable operation of the system and reduce the belt deviation caused by external interference or equipment factors.

[0073] After the correction is completed, the inclined pillar does not directly and quickly fall back to the original position, but falls back slowly in stages according to the signal change. For example, when the third sensing area signal is not received, it first falls to 60°, then further falls to 45° according to the second sensing area signal, and finally falls back to the original position. This slow falling back method can reduce the impact force on the equipment during the falling back of the inclined pillar, protecting the correction device and related mechanical parts, reducing the wear and damage risk of the equipment, and prolonging the service life of the equipment.

[0074] Through accurate correction control, excessive correction of the belt and the roller and other equipment caused by excessive correction is avoided. Reasonable correction angle and action can make the belt adjust within the normal operating range, reduce the abnormal friction between the belt and the roller, reduce the operating loss of the equipment, and improve the use efficiency and economic benefit of the equipment.

[0075] The application also provides a computer storage medium, wherein the computer storage medium can store a program, and the program can include part or all of the steps in the embodiments provided by the application when executed. The storage medium can be a magnetic disk, an optical disk, a read-only memory (ROM) or a random access memory (RAM), etc.

[0076] Although the present application has been described in detail with reference to the preferred embodiments, the application is not limited to such but encompasses any modifications or alternatives within the scope of the application as disclosed in the appended claims.

Claims

1. A belt conveyor correction system, characterized in that, include: A light emitting device (110) is installed above the upper belt (210) of the belt conveyor to emit light of the same width as the upper belt (210) to the normal operating position of the belt, thereby completing the coverage and irradiation of the upper belt (210); A light sensor (120) is installed below the upper belt (210) of the belt conveyor to receive light signals from the light emitting device (110) and send the received light signals to the main control chip. A laser rangefinder (130) is installed on the tail side roller (220) of the belt conveyor to detect whether the roller (220) is misaligned and to send the misalignment result to the main control chip. The main control chip is used to generate correction instructions based on the received optical signal and the deviation result of the roller (220); The belt alignment device is used to adjust the position of the roller (220) and / or adjust the position of the belt according to the received belt alignment command to achieve belt alignment.

2. The belt conveyor correction system according to claim 1, characterized in that, The light emitting device (110) includes: The light source is mounted above the upper belt (210) of the belt conveyor by a pair of fixed brackets (111) set on both sides of the belt, for emitting light that covers the upper belt (210); The light adjustment module is used to adjust the emission angle and coverage of the light source to accommodate belts of different widths; The light sensor (120) includes: Two sets of photosensitive components are arranged below the upper belt (210) for receiving light signals emitted by the light emitting device (110); each set of photosensitive components includes a first photosensitive element, a second photosensitive element and a third photosensitive element, which are arranged sequentially along the width of the belt, with the third photosensitive element being the farthest from the belt. The signal converter has its input end connected to the photosensitive component and its output end connected to the main control chip via a signal line. It is used to convert the light signal received by the photosensitive component into an electrical signal and send the converted electrical signal to the main control chip.

3. The belt conveyor correction system according to claim 1, characterized in that, The laser rangefinder (130) includes: A laser emitter is used to emit laser signals to the drum (220); A laser receiver is used to receive laser signals reflected from the roller (220); The ranging processor, connected to the laser transmitter and laser receiver, is used to calculate the distance based on the emitted and received laser signals; and to determine whether the roller (220) is misaligned based on the calculated real-time distance; and to send the misalignment result to the main control chip. The rangefinder bracket (131) is installed on the ground on the side of the roller (220) away from the light emitting device (110). The laser emitter is installed on the rangefinder bracket (131) and is at the same level as the end of the roller (220). The laser receiver and the rangefinder processor are both installed on the rangefinder bracket (131).

4. The belt conveyor correction system according to claim 1, characterized in that, The correction device includes a hydraulic component (142), a roller correction component, and a belt correction component (141) installed below the upper belt (210). The control terminal of the hydraulic component (142) is connected to the main control chip. The roller correction component and the belt correction component (141) are both connected to the hydraulic component (142). The hydraulic component (142) provides hydraulic power to the roller correction component and / or the belt correction component (141) according to the correction command of the main control chip, so as to realize the correction of the roller (220) and / or the belt.

5. The belt conveyor correction system according to claim 4, characterized in that, The belt alignment assembly (141) includes a U-shaped hydraulic support (1411) and two hydraulic cylinders (1412) disposed at both ends of the U-shaped hydraulic support (1411) and hinged to the U-shaped hydraulic support (1411). Each hydraulic cylinder (1412) has an inclined support (1413) hinged to the end away from the hydraulic support. A horizontal support (1414) is disposed between the two inclined supports (1413). The horizontal support (1414) is hinged to both inclined supports (1413). A flat idler roller (1415) is sleeved on the horizontal support (1414), and a side idler roller (1416) is sleeved on the inclined support (1413). The hydraulic support is provided with an oil supply pipe and an oil return pipe connected to the hydraulic component (142). The hydraulic cylinder (1412) is connected to the hydraulic component (142) through the oil supply pipe and the oil return pipe; and a solenoid valve (1421) is provided on the oil supply pipe.

6. The belt conveyor correction system according to claim 5, characterized in that, The roller alignment assembly includes hydraulic push rods installed on both sides of the roller (220), the hydraulic push rods being arranged parallel to the roller shaft of the roller (220); the hydraulic push rods are connected to the hydraulic assembly (142), and when the hydraulic assembly (142) supplies oil to the hydraulic push rods, the hydraulic push rods abut against the roller (220).

7. A method for correcting the alignment of a belt conveyor, characterized in that, A belt alignment system applicable to any one of claims 1-6, the method comprising: A light emitting device installed above the belt of a belt conveyor emits light to cover and irradiate the upper belt; A light sensor installed under the belt of a belt conveyor receives light signals from a light emitting device and sends the received light signals to the main control chip. The laser rangefinder installed at the tail roller of the belt conveyor determines whether the roller is misaligned based on the calculated distance information and sends the misalignment result to the main control chip. The main control chip generates correction commands based on the received optical signals and the results of roller misalignment; The belt alignment device adjusts the position of the rollers and / or the position of the belt according to the received alignment command to achieve belt alignment.

8. The belt conveyor correction method according to claim 7, characterized in that, Also includes: The light sensing device divides the light signal into three regions for detection: the first sensing region corresponding to the first photosensitive element, the second sensing region corresponding to the second photosensitive element, and the third sensing region corresponding to the third photosensitive element. The first sensing region, the second sensing region, and the third sensing region are successively moved away from the position when the belt is running normally. The main control chip calculates the light signal intensity of the corresponding area based on the sensing signal of each photosensitive element, and determines the main sensing area based on the light signal intensity; The main control chip generates corresponding correction commands based on the main sensing areas.

9. The belt conveyor correction method according to claim 8, characterized in that, The main control chip calculates the light signal intensity of the corresponding area based on the sensing signal of each photosensitive element, and determines the main sensing area based on the light signal intensity; The methods include: The formula for calculating optical signal intensity is: ;in, Let be the intensity of the light signal received in the i-th sensing area, where i = 1, 2, 3; Let be the optical power received by the i-th photosensitive element; Let be the light-receiving area of ​​the i-th photosensitive element; The formula for determining the main sensing area is: ； in, This is the main sensing area; , and These are the light signal intensities received by the first sensing area, the second sensing area, and the third sensing area, respectively. , and These are the distances from the first sensing area, the second sensing area, the third sensing area, and the normal operating position of the belt, respectively. , and These are the weighting coefficients for the first sensing region, the second sensing region, and the third sensing region, respectively.

10. The belt conveyor correction method according to claim 8, characterized in that, The main control chip generates corresponding correction commands based on the main sensing areas, and the methods include: When the main photosensitive area is the first sensing area, the main control chip generates a first correction command, and the correction device adjusts the angle between the inclined support and the ground to a first preset angle through the hydraulic cylinder according to the first correction command. When the main photosensitive area is the second sensing area, the main control chip generates a second correction command, and the correction device adjusts the angle between the inclined support and the ground to a second preset angle through the hydraulic cylinder according to the second correction command. When the main photosensitive area is the third sensing area, the main control chip generates a third correction command. The correction device adjusts the angle between the inclined support and the ground to the third preset angle through the hydraulic cylinder according to the third correction command. The first preset angle is smaller than the second preset angle, and the second preset angle is smaller than the third preset angle.

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