A pneumatic conveyor belt deviation correction device and system thereof

Abstract

The present invention provides a conveyor belt pneumatic deviation correction device and a system thereof applied to the technical field of conveyor belt deviation correction. The conveyor belt pneumatic deviation correction device is composed of an electrical control box, a bracket and a conveyor belt with a belt conveyor. A flexible metal belt is laid on the bottom of the conveyor belt. The electrical control box is connected to an air source pipeline system. The air source pipeline system is connected to a plurality of two-stage deviation detectors and a deviation correction device distributed along the conveyor belt. The deviation correction device includes a bottom support seat, a support platform is plugged into the bottom support seat, and a first cylinder matching the support platform is installed at the bottom end of the bottom support seat. The conveyor belt can be intelligently and automatically corrected, and the conveyor belt can be stopped and protected in time when the deviation is too large, so that the conveyor belt is not easily affected by leakage, tearing, etc.

Description

Technical Field

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

[0002] A belt conveyor is a friction-driven machine that continuously transports materials. It primarily consists of two end rollers, each tightly fitted with a closed conveyor belt. The roller that drives the conveyor belt is called the drive roller (or transmission roller); the other roller, which merely redirects the belt's motion, is called the bend roller. The drive roller is driven by an electric motor through a speed reducer, and the conveyor belt is dragged by friction between the drive roller and the belt. The drive roller is typically installed at the discharge end to increase traction and facilitate drag. Material is fed from the feed end, falls onto the rotating conveyor belt, and is driven by friction from the belt to the discharge end.

[0003] The existing mining belt conveyor correction device is mainly based on mechanical and hydraulic correction structures, with self-inspection and self-drive single-point correction, which cannot achieve the purpose of intelligent preventive correction and visualization and remote monitoring of the correction system. Summary of the Invention

[0004] The present application aims to provide a solution for intelligent automatic deviation correction of a conveyor belt in the vertical direction. Compared with the prior art, a pneumatic deviation correction device for a conveyor belt is provided, which includes an electric control box, a bracket, and a conveyor belt with a belt conveyor. A flexible metal belt is laid on the bottom of the conveyor belt. The electric control box is connected to an air source pipeline system, and the air source pipeline system is connected to a plurality of two-stage deviation detectors and a deviation correction device distributed along the conveyor belt.

[0005] The correcting device includes a bottom support seat, a support platform is slidably connected to the bottom support seat, a first cylinder is installed at the bottom end of the bottom support seat, both ends of the support platform are fixedly connected to side brackets, the upper end of the support platform is fixedly connected to a pair of side brackets, the top of the support platform is fixedly connected to a pair of auxiliary frames, a roller is connected between the auxiliary frame and the outer ends of the side brackets, a shaft column fixedly connected to the side bracket is provided in the roller, an electromagnet is installed in the middle of the shaft column, the movable end of the first cylinder is fixedly connected to the extension base, a second cylinder is connected between the extension base and the support platform, and the movable end of the second cylinder is fixedly connected to a side bracket.

[0006] This solution can realize intelligent automatic deviation correction of the conveyor belt, and can stop and protect the conveyor belt in time when the conveyor belt deviates too much, making it less likely for the conveyor belt to leak, tear, etc.

[0007] Optionally, a two-stage deviation detector is installed with a laser sensor and a pressure detector. The laser sensor is used for the first-level deviation detection, and the pressure detector is used for the second-level deviation detection. The laser sensor is used to detect the distance to the conveyor belt above it. When the conveyor belt deviates in the vertical direction, the deviation distance can be conveniently measured. When the pressure detector is triggered, the conveyor belt is severely deviated, and the belt conveyor is controlled to stop working.

[0008] A conveyor belt deviation correction system includes a controller built into an electrical control box, a two-stage deviation detector, a correction device and an air source pipeline system are all electrically connected to the controller, an electromagnet is electrically connected to the controller through the electrical control box, a data processing module and a data storage module are connected to the controller, and a plurality of pressure sensors connected to the data processing module signal are provided on the roller.

[0009] Optionally, the conveying mode of the belt conveyor for the conveyor belt is continuous conveying while keeping the conveyor belt moving at a uniform speed.

[0010] Optionally, the conveying mode of the belt conveyor for the conveyor belt is intermittent conveying with stops at equal time intervals.

[0011] Optionally, two adjacent two-stage deviation detectors are symmetrically distributed with the initial position of the correction device as the center. When the correction device performs correction work, it can move between the two two-stage deviation detectors. When the two-stage deviation detectors at both ends of the correction device are triggered, the correction device performs correction processing on the entire area between the two. When only one two-stage deviation detector is triggered, the correction device performs correction processing on half of the area between the two.

[0012] Optionally, a connector is installed in the auxiliary frame, and two adjacent shaft columns are connected through the connector. Wiring lines for pressure sensors and electromagnets are laid in the shaft columns. The connector is used to integrate the lines in the two adjacent shaft columns to facilitate the electrical control of the correction device by the electrical control box.

[0013] Optionally, three flexible metal belts are provided at the bottom of the conveyor belt, which are respectively located at the two ends and the middle of the conveyor belt, and the electromagnet is located in the middle of the roller; the electromagnet is cylindrical and the cross-section of the flexible metal belt is trapezoidal, which facilitates the positioning of the conveyor belt on the correction device. When the conveyor belt deviates laterally, the conveyor belt can be reset by attracting the electromagnet when the correction device performs the up and down correction work.

[0014] Optionally, an elastic buffer layer is laid on the bottom of the conveyor belt, and a reflective layer is laid on the surface of the buffer layer.

[0015] Optionally, the pressure sensor includes a ring-shaped thin film pressure sensor, and the position of the ring-shaped thin film pressure sensor matches the position of the electromagnet. The thin film pressure sensors on the three rollers independently perform pressure measurements. When the conveyor belt deviates in the lateral direction and the electromagnet attracts the flexible metal belt, the pressure sensor values ​​on the three rollers change differently, which is convenient for determining the conveyor belt deviation.

[0016] Compared with the existing technology, the advantages of this application are:

[0017] (1) This solution can realize intelligent automatic deviation correction of the conveyor belt, and can stop and protect the conveyor belt in time when the conveyor belt deflects too much, making it less likely for the conveyor belt to leak or tear.

[0018] (2) The two-stage deviation detector is equipped with a laser sensor and a pressure detector. The laser sensor is used for the first-stage deviation detection, and the pressure detector is used for the second-stage deviation detection. The laser sensor is used to detect the distance of the conveyor belt above it. When the conveyor belt deviates in the vertical direction, the deviation distance can be measured conveniently. When the pressure detector is triggered, the conveyor belt deviates seriously, and the belt conveyor is controlled to stop working.

[0019] (3) The two adjacent two-stage deviation detectors are symmetrically distributed with the initial position of the correction device as the center. When the correction device is performing correction work, it can move between the two two-stage deviation detectors. When the two-stage deviation detectors at both ends of the correction device are triggered, the correction device corrects the entire area between the two. When only one two-stage deviation detector is triggered, the correction device corrects half of the area between the two.

[0020] (4) There are three flexible metal belts at the bottom of the conveyor belt, which are located at both ends and the middle of the conveyor belt respectively, and the electromagnet is located in the middle of the roller; the electromagnet is cylindrical and the cross-section of the flexible metal belt is trapezoidal, which is convenient for positioning the conveyor belt on the deviation correction device. When the conveyor belt deviates in the lateral direction, the conveyor belt can be reset by attracting the electromagnet when the deviation correction device performs the upward and downward deviation correction work.

[0021] (5) The pressure sensor includes a ring-shaped thin film pressure sensor, and the position of the ring-shaped thin film pressure sensor matches the position of the electromagnet. The thin film pressure sensors on the three rollers measure the pressure independently. When the conveyor belt deviates in the lateral direction, the electromagnet attracts the flexible metal belt, and the pressure sensor values ​​on the three rollers change differently, which is convenient for determining the deviation of the conveyor belt. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A side view of the present application;

[0023] Figure 2A three-dimensional diagram of the correction device of this application;

[0024] Figure 3 A cross-sectional view of the correction device of this application;

[0025] Figure 4 This is a front view of the two-stage deviation detector of the present application;

[0026] Figure 5 This is a schematic diagram of the structure of the two-stage deviation detector and the deviation correction device of the present application when working;

[0027] Figure 6 This is a logic flow chart for the vertical correction work of this application;

[0028] Figure 7 This is a system block diagram of this application;

[0029] Figure 8 This is a logic flow chart for assisting the lateral deviation correction of the conveyor belt in this application.

[0030] Description of the numbers in the figure:

[0031] 1. Electric control box, 2. Two-stage deviation detector, 201. Laser sensor, 202. Pressure detector, 3. Correction device, 301. Bottom support seat, 302. Support platform, 303. Side bracket, 304. Auxiliary frame, 305. Roller, 306. Shaft column, 4. Air source pipeline system. DETAILED DESCRIPTION

[0032] The embodiments will be combined with the drawings in the specification to clearly and completely describe the technical solution of this application. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making any creative work shall fall within the scope of protection of this application.

[0033] Example 1:

[0034] The present invention provides a conveyor belt pneumatic deviation correction device and its system, please refer to Figure 1-6 A solution for intelligent, automatic vertical deviation correction of a conveyor belt is provided. Compared to existing technologies, this device provides a pneumatic conveyor belt deviation correction device. The device includes an electrical control box (1), a bracket, and a conveyor belt with a belt conveyor. The belt conveyor can convey the conveyor belt in two ways: continuous conveying (maintaining a constant speed) and intermittent conveying (stopping at regular intervals). The bottom of the conveyor belt is covered with a flexible metal belt, an elastic buffer layer, and a reflective layer.

[0035] The electric control box 1 is connected to a gas source pipeline system 4, and the gas source pipeline system 4 is connected to a plurality of two-stage deviation detectors 2 and deviation correction devices 3 distributed along the conveyor belt;

[0036] The two adjacent two-stage deviation detectors 2 are symmetrically distributed with the initial position of the correction device 3 as the center. When the correction device 3 performs correction work, it can move between the two two-stage deviation detectors 2. When the two-stage deviation detectors 2 at both ends of the correction device 3 are triggered, the correction device 3 performs correction processing on the entire area between the two. When only one two-stage deviation detector 2 is triggered, the correction device 3 performs correction processing on half of the area between the two.

[0037] See also Figure 3-4 The correcting device 3 includes a bottom support seat 301, a supporting platform 302 is slidably connected to the bottom support seat 301, and a first cylinder is installed at the bottom end of the bottom support seat 301, and both ends of the supporting platform 302 are fixedly connected to the side bracket 303, the upper end of the supporting platform 302 is fixedly connected to a pair of side brackets 303, and the top of the supporting platform 302 is fixedly connected to a pair of auxiliary frames 304, and a roller 305 is connected between the auxiliary frames 304 and the outer ends of the side brackets 303. The roller 305 is provided with a shaft column 306 fixedly connected to the side bracket 303, and an electromagnet is installed in the middle of the shaft column 306. The movable end of the first cylinder is fixedly connected to the extension base, and a second cylinder is connected between the extension base and the supporting platform 302, and the movable end of the second cylinder is fixedly connected to a side bracket 303. The second cylinder is used to drive the supporting platform 302 to move horizontally, and the first cylinder is used to drive the bottom support seat 301 to drive the supporting platform 302 to move vertically.

[0038] The two-stage deviation detector 2 is equipped with a laser sensor 201 and a pressure detector 202. The laser sensor 201 is used for the first-stage deviation detection, and the pressure detector 202 is used for the second-stage deviation detection. The laser sensor 201 is used to detect the distance of the conveyor belt above it. When the conveyor belt deviates in the vertical direction, the deviation distance can be conveniently measured. When the pressure detector 202 is triggered, the conveyor belt is seriously deviated, and the belt conveyor is controlled to stop working.

[0039] A conveyor belt deviation correction system includes a controller built into an electrical control box 1, a two-stage deviation detector 2, a correction device 3 and an air source pipeline system 4 are all electrically connected to the controller, an electromagnet is electrically connected to the controller through the electrical control box 1, a data processing module and a data storage module are connected to the controller, and a plurality of pressure sensors connected to the data processing module signal are provided on the roller 305.

[0040] When the conveyor belt is corrected; when the conveyor belt hits the first level of the two-level deviation detector 2 (the detection end of the laser sensor 201), the corresponding correction device 3 first raises the support platform 302 through the first cylinder;

[0041] The controller determines the internal operating principle of the electric control box 1 according to the running direction of the conveyor belt, the correction program runs, and the cylinder corresponding to the controller of the air source pipeline system 4 is actuated (the action includes the vertical displacement of the support platform 302 and the horizontal displacement of the correction device 3) until the detection end of the two-stage deviation detector 2 is out of contact with the conveyor belt; at this time, the support platform 302 is driven to sink, and the operation of the correction program is released to ensure that the conveyor belt always runs within the set range of the two-stage deviation detector 2.

[0042] When the conveyor belt hits the second stage (detection end of the pressure detector 202) of the fixed two-stage deviation detector 2, the correction program controls the emergency stop of the belt conveyor, thereby realizing the intelligent correction effect of the system.

[0043] This embodiment can realize automatic and intelligent deviation correction of the conveyor belt in the vertical direction.

[0044] Example 2:

[0045] See also Figure 3 and Figure 7 , wherein the components identical or corresponding to those in Example 1 are designated by the corresponding reference numerals in Example 1. For the sake of simplicity, only the differences from Example 1 are described below. The differences between Example 2 and Example 1 are:

[0046] An axis column 306 fixedly connected to the side bracket 303 is provided in the roller 305, an electromagnet is installed in the middle of the axis column 306, a connector is installed in the auxiliary frame 304, two adjacent axis columns 306 are connected through the connector, and wiring lines of the pressure sensor and the electromagnet are laid in the axis column 306. The connector is used to integrate the lines in the two adjacent axis columns 306, so as to facilitate the power connection control of the correction device 3 by the electric control box 1.

[0047] There are three flexible metal belts at the bottom of the conveyor belt, which are respectively located at the two ends and the middle of the conveyor belt, and the electromagnet is located in the middle of the roller 305 (under the condition that the conveyor belt has no lateral deviation, when the correction device 3 is in full contact with the conveyor belt, the three flexible metal belts are respectively matched with the positions of the three electromagnets, that is, the center line of the flexible metal belt is perpendicular to the axis of the electromagnet); the electromagnet is cylindrical and the cross-section of the flexible metal belt is trapezoidal, which is convenient for positioning the conveyor belt on the correction device 3. When the conveyor belt deviates laterally, the conveyor belt can be reset by attracting the electromagnet when the correction device 3 performs the up and down correction work.

[0048] The pressure sensor includes an annular thin film pressure sensor. The detection end of the thin film pressure sensor is provided with an electromagnetic shielding layer. The position of the annular thin film pressure sensor matches the position of the electromagnet. The thin film pressure sensors on the three rollers 305 independently measure pressure. When the conveyor belt deviates in the lateral direction, the electromagnet attracts the flexible metal belt, and the pressure sensor values ​​on the three rollers 305 change differently, making it easier to determine the conveyor belt deviation.

[0049] When the deviation correction program is running, when the deviation correction device 3 makes initial contact with the conveyor belt (when the deviation correction device 3 makes initial contact with the conveyor belt: the pressure detected by the pressure sensor on the roller 305 is the "set pressure value", and the "set pressure value" is set by those skilled in the art as needed), the controller turns on the electromagnets in the three rollers 305 to perform deviation detection. The deviation detection steps include: the three electromagnets operate at the same power to attract the flexible metal belt, and at this time, the pressure sensors on the three rollers 305 detect whether the changes in the values ​​are similar;

[0050] If the pressure detection values ​​on the three rollers 305 change in a similar amount, it is determined that the conveyor belt has not deviated in the lateral direction, and the correction device 3 continues to perform the vertical correction work in Example 1;

[0051] If the pressure detection value changes on the three rollers 305 differ greatly, it is determined that the conveyor belt is deflected in the lateral direction. At this time, the controller controls the electromagnet power of the roller 305 with the lowest pressure detection value change rate to increase, and the electromagnets in the two rollers 305 are turned off. Then the correction device 3 performs the vertical correction work in Example 1 again. During the correction process of the correction device 3, the electromagnet continues to attract the flexible metal belt, assisting the conveyor belt to gradually reset in the lateral direction.

[0052] When the deviation correction device 3 lifts the conveyor belt until it is no longer in contact with the two-stage deviation detector 2, the independently working electromagnet is turned off, and then the three electromagnets are turned on again to detect the deviation. If the pressure detection value changes are similar, the conveyor belt completes the lateral deviation correction; otherwise, the controller issues an alarm and stops the belt conveyor.

[0053] This embodiment can assist in lateral deviation correction during the vertical deviation correction of the conveying bag, and can also perform shutdown protection and alarm when the lateral deviation is serious.

[0054] The main function of this solution is to determine when the conveyor belt of the belt conveyor is deviating and to perform fixed-point belt correction. It is installed on the upper and lower longitudinal beams of the belt conveyor and has the functions of automatic deviation determination, automatic intelligent correction, and automatic homing.

[0055] This solution can realize intelligent automatic deviation correction of the conveyor belt, and can stop and protect the conveyor belt in time when the conveyor belt deflects too much, making it less likely for the conveyor belt to leak, tear, etc.

[0056] The above is only the best implementation method adopted by this application in combination with current actual needs, but the scope of protection of this application is not limited to this.

Claims

1. A pneumatic conveyor belt deviation correction device, comprising an electric control box (1), a bracket and a conveyor belt with a belt conveyor, characterized in that: A flexible metal belt is laid on the bottom of the conveyor belt, and the electric control box (1) is connected to a gas source pipeline system (4), and the gas source pipeline system (4) is connected to a plurality of two-stage deviation detectors (2) and deviation correction devices (3) distributed along the conveyor belt; The deviation correction device (3) comprises a bottom support seat (301), a support platform (302) is slidably connected to the bottom support seat (301), a first cylinder is installed at the bottom end of the bottom support seat (301), both ends of the support platform (302) are fixedly connected to side brackets (303), the upper end of the support platform (302) is fixedly connected to a pair of side brackets (303), the top end of the support platform (302) is fixedly connected to a pair of auxiliary brackets (304), and the auxiliary brackets (304) are fixedly connected to the top end of the support platform (302). A roller (305) is connected to the outer end of the side bracket (303), a shaft column (306) fixedly connected to the side bracket (303) is provided in the roller (305), an electromagnet is installed in the middle of the shaft column (306), a movable end of the first cylinder is fixedly connected to the extension base, a second cylinder is connected between the extension base and the support platform (302), and the movable end of the second cylinder is fixedly connected to one of the side brackets (303), and a plurality of pressure sensors are provided on the roller (305); The pressure sensor comprises a ring-shaped thin film pressure sensor, and the position of the ring-shaped thin film pressure sensor matches the position of the electromagnet. The thin film pressure sensors on the three rollers (305) independently perform pressure measurement. The three electromagnets operate at the same power to attract the flexible metal strip. At this time, the pressure sensors on the three rollers (305) detect whether the value changes are similar. If the pressure detection value changes on the three rollers (305) are similar, it is determined that the conveyor belt has not deviated in the lateral direction, and the correction device (3) performs vertical correction work; if the pressure detection value changes on the three rollers (305) differ greatly, it is determined that the conveyor belt has deviated in the lateral direction, and the electromagnet power at the roller (305) with the lowest pressure detection value change rate is increased, and the electromagnets in the two rollers (305) are turned off, and then the correction device (3) performs vertical correction work again. During the correction process of the correction device (3), the electromagnet continuously attracts the flexible metal belt, assisting the conveyor belt to gradually reset in the lateral direction; When the deviation correction device (3) lifts the conveyor belt until it is out of contact with the two-stage deviation detector (2), the independently working electromagnet is turned off, and then the three electromagnets are turned on again to perform deviation detection. If the pressure detection value changes are similar, the conveyor belt completes the lateral deviation correction; otherwise, an alarm is issued and the belt conveyor stops working; The two-stage deviation detector (2) is equipped with a laser sensor (201) and a pressure detector (202), wherein the laser sensor (201) is used for the first-stage deviation detection, and the pressure detector (202) is used for the second-stage deviation detection; the flexible metal belts at the bottom of the conveyor belt are provided in three strips, and the three flexible metal belts are respectively located at the two ends and the middle of the conveyor belt, and the electromagnet is located in the middle of the roller (305).

2. A conveyor belt pneumatic deviation correction device according to claim 1, characterized in that: The conveying modes of the conveyor belt by the belt conveyor include: continuous conveying with the conveyor belt moving at a constant speed and intermittent conveying with the conveyor belt stopping at equal time intervals.

3. A conveyor belt pneumatic deviation correction device according to claim 1, characterized in that: Two adjacent two-stage deviation detectors (2) are symmetrically distributed with the initial position of the deviation correction device (3) as the center.

4. A conveyor belt pneumatic deviation correction device according to claim 1, characterized in that: A connector is installed in the auxiliary frame (304), and two adjacent shaft columns (306) are connected via the connector.

5. A conveyor belt pneumatic deviation correction device according to claim 1, characterized in that: An elastic buffer layer is laid on the bottom of the conveyor belt, and a reflective layer is laid on the surface of the buffer layer.

6. A conveyor belt pneumatic deviation correction device according to claim 1, characterized in that: The electromagnet is cylindrical, and the cross section of the flexible metal strip is trapezoidal.

7. A conveyor belt deviation correction system applied to the device according to claim 1, characterized in that: The invention comprises a controller built into an electric control box (1); the two-stage deviation detector (2), the deviation correction device (3) and the air source pipeline system (4) are all connected to the controller via telecommunication; the electromagnet is connected to the controller via telecommunication through the electric control box (1); and the controller is connected to a data processing module and a data storage module.

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