Conveying belt fracture monitoring device and deviation alarm system

Abstract

The invention discloses a conveyor belt fracture monitoring device and a deviation alarm system, and relates to the technical field of conveyors. Comprising a conveyor and a conveying belt arranged on the conveyor. The feedback piece is arranged on the conveying belt; the control piece is arranged on the conveyor and is in circuit connection with a driving motor of the conveyor; the feedback member emits an electromagnetic wave signal. When the control piece receives electromagnetic wave signals from the emitter, the electromagnetic wave signals are converted into electric signals, and the conveyor drives the roller to rotate normally. Otherwise, the conveyor drives the roller to stop rotating. When the conveying belt of the conveyor is clamped or punctured by a hard object, the control piece does not receive the electromagnetic wave signal, and the conveyor drives the roller to stop rotating immediately. The conveying belt is prevented from being further torn or opened; the deviation alarm system can timely remind an operator on duty of discovering equipment abnormity such as deviation and distortion of the conveying belt and timely discovering and handling problems.

Description

Technical Field

[0001] The invention relates to the technical field of conveyors, and in particular to a conveyor belt breakage monitoring device and a deviation alarm system. Background Art

[0002] The structure of the head, tail and tensioning device of the tubular belt conveyor is not much different from that of the ordinary belt conveyor, except that the conveyor belt section in the middle is forcibly wrapped into a round tube by rollers arranged in a hexagonal shape. The conveyed materials are enclosed in the round tube and run stably with the conveyor belt. When it reaches the head (or unloading point), the conveyor belt gradually transitions from a round tube shape to a deep groove shape, and finally unloads at the head roller.

[0003] When the tubular belt conveyor is running, it is very difficult to find large pieces and sharp objects in the conveyor belt material. Once they are caught in the tubular belt, they are easily squeezed by the friction around them and the belt speed is fast, which can easily cause large-scale longitudinal tearing of the belt. In addition, when the tubular belt conveyor deviates and twists at the window roller group, it is cumbersome to eliminate the fault and the adjustment time is long. Summary of the invention

[0004] In view of the above problems existing in the existing conveyor belt breakage monitoring device, the present invention is proposed.

[0005] Therefore, the present invention provides a conveyor belt breakage monitoring device, the purpose of which is to solve the problem that large pieces and sharp objects in the conveyor belt material may cause the conveyor belt to break and the conveyor belt to deviate during transportation without the staff being aware of it.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions: comprising a conveyor, a conveyor belt arranged on the conveyor; a feedback component, which is arranged on the conveyor belt; a control component, which is arranged on the conveyor and connected to the driving motor circuit of the conveyor; the feedback component emits electromagnetic wave signals, which are received and converted into electrical signals by the control component to drive the conveyor roller to operate normally. When the conveyor belt is stuck or punctured by a hard object, the feedback component has no signal emission, the control component cannot receive the signal, and the roller stops immediately to prevent further damage to the conveyor belt.

[0007] As a preferred solution of the conveyor belt breakage monitoring device of the present invention, the conveyor belt includes a load layer and an interlayer arranged in the middle of the load layer; and the feedback element is arranged in the interlayer.

[0008] As a preferred solution of the conveyor belt breakage monitoring device of the present invention, the feedback member includes a conductor, and the conductor is evenly distributed in the interlayer in a sinusoidal wave manner.

[0009] As a preferred embodiment of the conveyor belt breakage monitoring device of the present invention, wherein: a power supply is provided on the wire, and a transmitter is provided every 50 meters along the wire;

[0010] The transmitter emits signals that propagate in the form of electromagnetic waves and are received by the control member and converted into electrical signals.

[0011] As a preferred embodiment of the conveyor belt breakage monitoring device of the present invention, wherein: the wire, the power supply and a plurality of transmitters form a closed circuit.

[0012] As a preferred embodiment of the conveyor belt breakage monitoring device of the present invention, wherein: a set of control members is provided every 50m; a plurality of sets of control members are closely distributed within the interlayer.

[0013] As a preferred embodiment of the conveyor belt breakage monitoring device of the present invention, wherein: each set of control members forms a closed circuit.

[0014] As a preferred embodiment of the conveyor belt breakage monitoring device of the present invention, wherein: a canvas is provided between the interlayer and the inner side of the load layer and is laid on the wire.

[0015] As a preferred embodiment of the offset alarm system of the present invention, wherein: an information input processing module receives the original signal from the sensor and performs preliminary processing and filtering;

[0016] An image processing module processes the video signal collected by the camera, including steps such as video coding, image recognition, and image compensation, to extract useful information;

[0017] An instruction processing module generates corresponding control instructions according to the output of the image processing module;

[0018] An execution processing module receives the instructions from the instruction processing module and executes the corresponding operations.

[0019] As a preferred embodiment of the alarm device of the present invention, wherein: it further includes a reflective bead provided outside the edge of the conveyor belt; the reflective bead refracts and reflects light under light irradiation, facilitating the monitoring camera to sense light and analyze the image data to determine the deviation of the conveyor belt.

[0020] The beneficial effects of the present invention: When the control member receives the electromagnetic wave signal from the transmitter, it is converted into an electrical signal, and the conveyor drive roller rotates normally. Otherwise, the conveyor drive roller stops rotating. When the conveyor belt is stuck or punctured by a hard object, the control member does not receive the electromagnetic wave signal, and the conveyor drive roller immediately stops rotating. This avoids further tearing or opening of the conveyor belt; the offset alarm system can promptly remind the on-duty operator to detect equipment abnormalities such as the deviation and distortion of the conveyor belt, and deal with them in a timely manner. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] To more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the accompanying drawings required for the description of the embodiments. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can be obtained based on these drawings.

[0022] Figure 1 It is a schematic diagram of the overall structure of the conveyor belt breakage monitoring device of the present invention;

[0023] Figure 2 It is a schematic longitudinal sectional view of the conveyor belt in the conveyor belt breakage monitoring device of the present invention;

[0024] Figure 3 It is a schematic diagram of the feedback member in the conveyor belt breakage monitoring device of the present invention;

[0025] Figure 4 It is a schematic diagram of the feedback member in Embodiment 2;

[0026] Figure 5 It is a schematic cross-sectional view of the conveyor belt in the conveyor belt breakage monitoring device of the present invention;

[0027] Figure 6 It is a schematic diagram of the offset alarm system of the present invention. Specific Embodiments

[0028] To make the above objects, features, and advantages of the present invention more obvious and understandable, the following will describe the specific embodiments of the present invention in detail with reference to the accompanying drawings of the specification.

[0029] Many specific details are set forth in the following description to facilitate a thorough understanding of the present invention. However, the present invention can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present invention. Therefore, the present invention is not limited by the specific embodiments disclosed below.

[0030] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation manner of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it an embodiment that is mutually exclusive with other embodiments alone or selectively.

[0031] Next, the present invention will be described in detail with reference to the schematic diagrams. When describing the embodiments of the present invention in detail, for the convenience of explanation, the cross-sectional views showing the device structure will be enlarged locally out of the general scale, and the schematic diagrams are only examples and should not limit the scope of protection of the present invention herein. In addition, in actual production, three-dimensional spatial dimensions including length, width, and depth should be included.

[0032] Embodiment 1. Refer to Figure 1 - Figure 3 , which is the first embodiment of the present invention, provides a conveyor belt 11 breakage monitoring device, including a conveyor 1 and a conveyor belt 11 provided on the conveyor 1; a feedback member 2 provided on the conveyor belt 11; a control member 3 provided on the conveyor 1 and electrically connected to the drive motor of the conveyor 1; the feedback member 2 emits an electromagnetic wave signal, the control member 3 receives and converts it into an electrical signal to drive the normal operation of the rollers of the conveyor 1. When the conveyor belt 11 is stuck or punctured by a hard object, the feedback member 2 does not emit a signal, the control member 3 cannot receive the signal, and the rollers immediately stop to prevent further damage to the conveyor belt 11.

[0033] This embodiment is used to detect whether the conveyor belt 11 is stuck or punctured by a hard object, and immediately stop the drive rollers of the conveyor 1 when such a situation occurs to avoid further damage to the conveyor belt 11.

[0034] Among them, the metal wire 21 is horizontally placed in a sine wave shape in the load sandwich layer 112 of the conveyor belt 11, about 50 mm away from the edge of the conveyor belt 11, and is located in the middle position of the conveyor belt 11. The metal wire 21 has the characteristics of low resistance and high conductivity, is in the shape of a thin wire, and can effectively conduct current. The metal wire 21 serves as a medium for signal transmission and forms a closed circuit by connecting to a micro power supply 22 and a micro transmitter 23.

[0035] A transmitter 23 is distributed every 50 meters and is connected to the metal wire 21. The transmitter 23 sends an electromagnetic wave signal, and the control member 3 is responsible for receiving the electromagnetic wave signal emitted from the transmitting device and converting it into an electrical signal.

[0036] Under normal circumstances, the control member 3 can receive the electromagnetic wave signal and convert it into an electrical signal to drive the normal rotation of the rollers of the conveyor 1. If the control member 3 does not receive the signal, it means that the wire 21 is blocked, the conveyor belt 11 is stuck or punctured by a hard object, and the device will immediately stop the rotation of the rollers. The device can monitor the state of the conveyor belt 11 in real time, detect abnormal situations in a timely manner, and once an abnormality is detected, the system can immediately stop the rotation of the rollers to reduce the damage to the conveyor belt 11.

[0037] Connecting a number of transmitters 23 in series and a power supply 22 is applicable to cost-sensitive and simple installation scenarios, such as short-distance and low-load conveyor belt 11 systems, and is suitable for scenarios with lower requirements for fault location accuracy and reliability.

[0038] Embodiment 2 is the second embodiment of the present invention. Refer to Figure 4 , a set of control components 3 is provided every 50 m. Each set of control components 3 includes a power supply 22 and a transmitter 23. The power supply 22 and the transmitter 23 are connected by a wire 21. Compared with the first embodiment, this embodiment can quickly and accurately find out which section of the conveyor belt 11 has problems.

[0039] When a certain section of the conveyor belt 11 is jammed or punctured by a hard object, the wire 21 may be cut off or damaged, resulting in the inability of the transmitter 23 of the control component 3 in this section to send a signal. When the control component 3 detects the absence of the signal of a certain set of transmitters 23, it immediately stops the rotation of the roller and locates the faulty section through the position where the signal is missing;

[0040] Each set of control components 3 works independently and is set every 50 meters to form a segmented monitoring network. The control component 3 can identify the signals of each set of transmitters 23 and locate the faulty section according to the specific group where the signal is missing. Since the distance between each set of control components 3 is 50 meters, the control component 3 can accurately narrow down the fault range to within 50 meters, which is convenient for quickly finding the faulty section through segmented monitoring. The system can accurately find the faulty section, improve the maintenance efficiency, and each set of control components 3 works independently, which is convenient for installation, maintenance, replacement, troubleshooting and repair.

[0041] One set of control components 3 (independent power supply 22 + transmitter 23) every 50 m is applicable to scenarios with higher requirements for fault location accuracy and reliability, such as long-distance and high-load conveyor belt 11 systems.

[0042] Embodiment 3, in which the micro battery is charged. When the conveyor 1 stops working, the position of the micro battery on the conveyor belt 11 needs to be stopped at the wireless charging device for regular wireless charging. The position of the micro battery is marked on the reverse side of the conveyor belt 11 and can be automatically determined by the induction of the monitoring camera.

[0043] The micro battery can also be a micro nuclear battery. The working principle of the micro nuclear battery is mainly based on the decay process of radioactive isotopes. For example, nickel-63 is a commonly used radioactive isotope, and the electrons and positrons released during its decay process can be captured and converted into current. The design of this battery allows it to work for a long time without an external power supply 22 and is suitable for application scenarios that require long-term energy supply.

[0044] Embodiment 4

[0045] Refer to Figure 5, fluorescent materials and reflective materials are added to the edge (width about 50MM) of the conveyor belt 11. The fluorescent materials do not reflect light or emit light, but their color is more than three times brighter than ordinary paint. The reflective materials (reflective beads 4) refract and reflect light under light irradiation. This facilitates the monitoring camera to sense light and analyze the image data for the deviation of the conveyor belt 11. It is beneficial to detect the deviation and distortion of the conveyor belt 11 and make automatic adjustments in a timely manner. The addition of fluorescent materials and reflective materials is arranged in the edge gap of the conveyor belt 11, which facilitates the monitoring camera to sense light and analyze the image data for the slippage of the conveyor belt 11. It can more realistically reflect the linear speed of the conveyor belt 11. Compared with the device that measures the linear speed of the conveyor belt 11 by contact, it is more accurate, and at the same time reduces contact wear, which is beneficial to the precise overload protection of the conveyor 1.

[0046] Reference Figure 6 , the system consists of an information input and processing module, an image processing module, an instruction processing module, and an execution processing module.

[0047] Among them, sensor input: The camera sensor group includes multiple sensors, such as a wind direction sensor, a wind speed sensor, a rainfall sensor, etc., which are responsible for collecting environmental data; the signal input and processing module receives the original signals from the sensors, performs preliminary processing and filtering to ensure the accuracy and reliability of the signals.

[0048] Image processing module: Processes the video signals collected by the camera, including steps such as video encoding, image recognition, and image compensation to extract useful information; image recognition identifies specific targets or abnormal situations in the image through algorithms, such as the deflection and slippage of the conveyor belt 11; performs optimization processing on the image, such as night vision compensation, to improve the image quality.

[0049] Instruction processing module: Generates corresponding control instructions based on the output of the image processing module. This module is responsible for logical judgment and decision-making, such as whether automatic adjustment is required or an alarm is to be issued; the instruction processing module makes decisions relying on the core data of the system to ensure the accuracy and timeliness of the instructions.

[0050] Execution processing module: Receives the instructions from the instruction processing module and executes the corresponding operations. It includes direction control, speed control, etc., which are achieved through automatic adjustment of the electronic control unit or manual control; the execution module controls the rotation of the drive roller to control the conveyor belt 11; when the deviation of the conveyor belt 11 exceeds the preset limit, the execution module will trigger mechanical adjustment to prevent further deviation.

[0051] Control room alarm: When the system detects an abnormal situation, it will send an alarm signal to the control room to remind the operator to handle it; in addition to the control room alarm, the system will also send an alarm signal on-site to ensure that on-site personnel can also respond in a timely manner; when the conveyor belt 11 shows deflection or slippage, the system will send a special alarm signal.

[0052] LED display: Displays the operating status and alarm information of the system for real-time monitoring by the operator; Conveyor simulation offset display: Helps the operator more intuitively understand the system status by simulating and displaying the offset of conveyor belt 11.

[0053] Manual control: In cases where automatic control cannot effectively handle the situation, the operator can manually control and intervene in the system through the control room; On-site personnel can also operate through on-site manual control to ensure flexible response of the system in case of emergencies.

[0054] Data recording and path management; Registration file Registration file B: The system records key data in the operation process for subsequent analysis and auditing; Date path B: The system records the date and path of the operation to ensure the traceability of the data.

[0055] Signal encoding and conversion: Encodes the signal to ensure the integrity and accuracy of the signal during transmission; Converts digital signals into analog signals so that the execution module can correctly identify and execute.

[0056] Logic and interrupt handling: The system performs logical judgments during the processing to ensure the coordination and consistency among various modules; When the system detects an emergency, it triggers interrupt handling to give priority to handling emergency tasks.

[0057] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not restrictive. Although the present invention has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present invention can be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present invention, and they should all be covered within the scope of the claims of the present invention.

Claims

1. A conveyor belt breakage monitoring device, characterized in that: include, A conveyor (1), and a conveyor belt (11) arranged on the conveyor (1); A feedback member (2) disposed on the conveyor belt (11); A control component (3), which is arranged on the conveyor (1) and connected to the driving motor circuit of the conveyor (1); The feedback component (2) emits an electromagnetic wave signal, which is received and converted into an electrical signal by the control component (3), thereby driving the roller of the conveyor (1) to operate normally. When the conveyor belt (11) is stuck or punctured by a hard object, the feedback component (2) does not emit any signal, and the control component (3) does not receive any signal, so the roller stops immediately, thereby preventing the conveyor belt (11) from being further damaged.

2. The conveyor belt breakage monitoring device according to claim 1, characterized in that: The conveyor belt (11) comprises a load-bearing layer (111) and an interlayer (112) arranged in the middle of the load-bearing layer (111); The feedback element (2) is arranged in the interlayer (112).

3. The conveyor belt breakage monitoring device according to claim 1, characterized in that: The feedback element (2) comprises a conductor (21), and the conductor (21) is evenly distributed in the interlayer (112) in a sinusoidal wave manner.

4. The conveyor belt breakage monitoring device according to claim 3 is characterized in that: The conductor (21) is provided with a power source (22), and the conductor (21) is provided with a transmitter (23) every 50 meters; The signal emitted by the transmitter (23) is propagated in the form of electromagnetic waves, which are received by the control element (3) and converted into electrical signals.

5. The conveyor belt breakage monitoring device according to claim 3 or 4, characterized in that: The wire (21), the power source (22) and a plurality of transmitters (23) form a closed circuit.

6. The conveyor belt breakage monitoring device according to claim 3 or 4, characterized in that: A set of control elements (3) is provided every 50 m; A plurality of groups of control components (3) are closely distributed in the interlayer (112).

7. The conveyor belt breakage monitoring device according to claim 6, characterized in that: Each group of control elements (3) forms a closed circuit.

8. The conveyor belt breakage monitoring device according to claim 2, characterized in that: A canvas is provided between the interlayer (112) and the inner side of the load-bearing layer (111) and is laid on the conductor (21).

9. A deviation alarm system, using the conveyor belt breakage monitoring device according to any one of claims 1 to 8, characterized in that: include: The information input processing module receives the original signal from the sensor and performs preliminary processing and filtering; The image processing module processes the video signals collected by the camera, including video encoding, image recognition, and image compensation, to extract useful information; The instruction processing module generates corresponding control instructions according to the output of the image processing module; The execution processing module receives instructions from the instruction processing module and performs corresponding operations.

10. The deviation alarm system according to claim 9, characterized in that: It also includes reflective beads (4) arranged outside the edge of the conveyor belt (11); The reflective beads (4) refract and reflect light when illuminated by light, making it easier for the monitoring camera to sense light and analyze image data to detect deviation of the conveyor belt (11).

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