A device for preventing large-scale scratching of a belt

Abstract

The application discloses a device for preventing large-area scratch of a belt, and relates to the technical field of belt conveyors. The technical points are as follows: a sensor device is installed at the bottom of a belt conveying system to monitor the working state of the belt in real time; a control system is connected with the sensor device to receive feedback signals; an alarm device is connected with the control system to send an alarm when receiving an alarm signal; a shutdown actuator is connected with the control system to execute a shutdown operation when receiving a shutdown signal; when the belt is punctured by a hard object and the puncturing object contacts a preset signal receiving end surface of the sensor, the sensor device captures an abnormal signal and feeds back the abnormal signal, and the control system triggers an alarm and a shutdown operation; the application can timely respond to the situation that the belt is punctured by a hard object, prevent loss expansion, and ensure production safety and efficiency.

Description

Technical Field

[0001] This invention relates to the field of belt conveyor technology, and in particular to a device for preventing large-area scratches on belts. Background Technology

[0002] In the current steel and metallurgical industry, especially in ironmaking, belt conveyors are widely used as the primary means of material transportation. However, due to constraints such as space constraints and cost control, most processes use only one conveyor belt. This single-mode belt system presents numerous hidden dangers during operation. Damage to the belt immediately necessitates downtime for repairs. Continuing to operate the conveyor at this point inevitably leads to material leakage, and the complex belt structure makes cleaning extremely difficult. More seriously, belt damage can trigger a chain reaction of problems, causing malfunctions in auxiliary equipment and severely impacting the stable operation of the entire production system.

[0003] Damaged conveyor belts not only damage equipment but also trigger a series of environmental and economic problems. Severe dust pollution can occur in conveyor belt corridors due to damage, which clearly fails to meet environmental standards, causing significant damage to the working environment and impacting employee health and work efficiency. From an economic perspective, conveyor belt repairs are expensive and require substantial manpower, resulting in extremely high labor intensity for employees. Furthermore, the lengthy repair time can lead to production interruptions and substantial economic losses for the company. Therefore, promptly stopping the operation of a conveyor belt at the initial stage of damage is crucial for reducing the repair area and costs, lowering employee labor intensity, shortening repair time, quickly restoring production, and minimizing economic losses.

[0004] Given the numerous problems caused by belt damage, when a belt is punctured by hard objects such as steel bars or plates, the machine must be stopped immediately to prevent further losses. However, current on-site inspections are usually conducted periodically over long distances, making it difficult to detect belt damage and stop the machine quickly in a timely manner. Summary of the Invention

[0005] In order to at least solve one of the above-mentioned technical problems, the present invention aims to provide a device for preventing large-area scratches on belts, responding promptly to situations where belts are punctured by hard objects, preventing further losses, and ensuring production safety and efficiency.

[0006] To achieve the above objectives, the present invention provides the following technical solution: A device for preventing large-area scratches on belts, comprising: The sensor device is installed at the bottom of the belt conveyor system to monitor the working status of the belt in real time. A control system, connected to the sensor device, is used to receive signals fed back from the sensor device; An alarm device, connected to the control system, is used to issue an alarm when it receives an alarm signal triggered by the control system. A shutdown actuator, connected to the control system, is used to perform a shutdown operation when a shutdown signal triggered by the control system is received. When the belt is punctured by a hard object during operation, and the punctured object comes into contact with the preset signal receiving end face of the sensor, the sensor device captures the abnormal contact signal and feeds it back to the control system. The control system triggers the alarm device to sound an alarm and controls the shutdown actuator to perform a shutdown operation.

[0007] Preferably, the signal receiving end face of the sensor device is located below the conveyor belt at the material receiving point.

[0008] Preferably, the control system includes a shutdown condition setting module, used to set the continuous contact time required for alarm shutdown according to different models and specifications of belt conveyors.

[0009] Preferably, the sensor device is a contact sensor used to detect the contact between a hard object and the signal receiving end face.

[0010] Preferably, the alarm device is an audible and visual alarm that can simultaneously emit sound and light signals to trigger an alarm.

[0011] Preferably, the shutdown actuator is a motor control device used to control the motor of the belt conveyor system to stop operating.

[0012] The present invention has the following beneficial effects: Timely response to belt punctures by hard objects to prevent further losses: This device, using sensors installed at the bottom of the belt conveyor system, monitors the belt's operating status in real time. When the belt is punctured by hard objects such as steel bars or plates during operation, and the puncture object contacts the sensor's preset signal receiving end face, the sensor immediately detects the abnormal contact signal and sends it back to the control system. The control system then triggers an alarm and controls the shutdown actuator to perform a shutdown operation. This process ensures timely response to belt punctures, preventing continued belt operation from causing material leakage, cascading damage, and other problems, effectively preventing further losses and ensuring the stable operation of the production system.

[0013] Reduced maintenance area and costs: Because this device can stop the belt from operating in its early stages of scratches, the extent of damage is controlled, preventing large-scale scratches. This means that subsequent maintenance only requires repairing small areas of damage, significantly reducing the maintenance area and consequently lowering maintenance costs, including material and labor costs.

[0014] Reduced Labor Intensity for Employees: Traditional conveyor belt maintenance processes are extremely difficult due to potential material leaks caused by belt damage, requiring employees to expend a significant amount of physical effort for cleaning and repair. This device, however, allows for timely shutdown, preventing large-scale material leaks and reducing the amount of cleanup work, thereby lowering the labor intensity for employees during maintenance.

[0015] Shorten maintenance time and quickly restore production: This device can quickly detect belt damage and stop the machine, avoiding complex maintenance situations caused by large-area belt damage. Small-area repairs are relatively simple and require less time, enabling quick completion of repairs and allowing the belt conveyor to return to normal operation as soon as possible. This reduces production downtime, minimizes economic losses caused by production interruptions, and ensures the company's production efficiency and economic benefits.

[0016] The sensor device's signal receiving end face is positioned below the conveyor belt at the material receiving point: this unique setup allows for more accurate detection of belt punctures caused by hard objects during material receiving. Because the material receiving point is where the conveyor belt is most susceptible to impact from hard objects in the material, placing the signal receiving end face here improves the device's sensitivity and accuracy in detecting belt damage, enabling timely detection of abnormal signals and triggering subsequent alarms and shutdown operations.

[0017] The control system includes a shutdown condition setting module: this module can set the required continuous contact time for alarm shutdown according to different models and specifications of belt conveyors. This design makes the device more versatile and adaptable, meeting the needs of belt conveyor protection in different production scenarios. For example, for some belt conveyors with heavy loads and high operating speeds, the continuous contact time can be appropriately extended to avoid accidental shutdown due to brief abnormal contact; while for some belt conveyors with extremely high safety requirements, the continuous contact time can be shortened to ensure timely shutdown when the belt shows minor damage.

[0018] The sensor device is a contact sensor, the alarm device is an audible and visual alarm, and the shutdown actuator is a motor control device: this combination forms a complete and efficient belt protection system. The contact sensor can accurately detect the contact between a hard object and the signal receiving surface, providing a reliable signal for subsequent control; the audible and visual alarm can simultaneously emit sound and light signals to alert on-site personnel in case of belt abnormalities; the motor control device can quickly control the motor of the belt conveyor system to stop operation, achieving rapid shutdown. These three components work together to ensure that the system can respond promptly and effectively to situations where the belt is punctured by a hard object, guaranteeing production safety and efficiency. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of an embodiment of the present invention.

[0021] In the diagram: 1. Sensor device; 2. Control system; 3. Alarm device; 4. Stop actuator. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0023] like Figure 1 As shown, a device for preventing large-area scratches on a belt includes: Sensor device 1 is installed at the bottom of the belt conveyor system to monitor the working status of the belt in real time; Control system 2 is connected to sensor device 1 and is used to receive signals fed back by sensor device 1. Alarm device 3 is connected to control system 2 and is used to issue an alarm when it receives an alarm signal triggered by control system 2; The shutdown actuator 4 is connected to the control system 2 and is used to perform a shutdown operation when a shutdown signal triggered by the control system 2 is received. When the belt is punctured by a hard object during operation, and the punctured object comes into contact with the preset signal receiving end face of the sensor, the sensor device 1 captures the abnormal contact signal and feeds it back to the control system 2. The control system 2 triggers the alarm device 3 to sound an alarm and controls the shutdown actuator 4 to perform a shutdown operation.

[0024] like Figure 1As shown, sensor device 1 is installed at the bottom of the belt conveyor system, and its core function is to monitor the working status of the belt in real time. When the belt is punctured by hard objects such as steel bars or steel plates during operation, the puncturing object will come into contact with the sensor's preset signal receiving end face as the belt moves. Once the puncturing object contacts the signal receiving end face, sensor device 1 will immediately capture this abnormal contact signal and feed it back to the connected control system 2 in the form of an electrical signal or other suitable signal. After receiving the signal from sensor device 1, control system 2 will analyze and process the signal. After confirming that it is a valid abnormal contact signal, control system 2 will trigger two actions simultaneously: on the one hand, it will send an alarm signal to alarm device 3, and on the other hand, it will send a stop signal to stop actuator 4. After receiving the alarm signal triggered by control system 2, alarm device 3 will sound an alarm, usually in the form of an audible and visual alarm, to alert on-site personnel that the belt has an abnormality. After receiving the stop signal triggered by control system 2, stop actuator 4 will immediately perform a stop operation, such as controlling the motor of the belt conveyor system to stop running, thereby preventing the belt from being scratched over a large area due to continued operation.

[0025] like Figure 1 As shown, sensor device 1 is a contact sensor used to detect the contact between a hard object and the signal receiving surface. It is installed below the conveyor belt at the material receiving point. During normal operation of the conveyor belt, when a hard object such as a rebar or steel plate punctures the belt, this hard object will come into contact with the signal receiving surface of sensor device 1 as the belt moves. The contact sensor can sensitively detect this physical contact between the hard object and the signal receiving surface and convert it into a corresponding electrical signal or other identifiable signal form. Sensor device 1 transmits the captured hard object contact signal to the connected control system 2. Control system 2, as the core processing unit of the entire device, is responsible for receiving and analyzing the signals from sensor device 1.

[0026] like Figure 1 As shown, the shutdown condition setting module in control system 2 plays a crucial role. Since different models and specifications of belt conveyors differ in operating characteristics and load-bearing capacity, this module can pre-set the required continuous contact time for alarm shutdown based on the specific model and specification of the belt conveyor being used. When the duration of the contact signal fed back by sensor device 1 reaches or exceeds the pre-set continuous contact time, control system 2 determines that the shutdown condition has been met.

[0027] Once the control system 2 determines that the shutdown conditions are met, it will trigger two actions simultaneously. On the one hand, it sends an alarm signal to the alarm device 3, which then sounds an alarm (such as an audible and visual alarm) to alert on-site personnel that the belt is malfunctioning. On the other hand, it sends a shutdown signal to the shutdown actuator 4, which (such as a device that controls the operation of the belt motor) performs a shutdown operation, stopping the belt from running and preventing it from being damaged extensively by continued scratches from hard objects.

[0028] like Figure 1 As shown, alarm device 3 is an audible and visual alarm, capable of simultaneously emitting sound and light signals to sound an alarm. Stop actuator 4 is a motor control device used to control the motor of the belt conveyor system to stop operating.

[0029] like Figure 1 As shown, the contact sensor device 1 is installed below the conveyor belt at the receiving point. When the belt is punctured by a hard object, and the object comes into contact with the sensor's signal receiving end face, the sensor detects this abnormal contact and converts the contact signal into an electrical signal, which is then transmitted to the control system 2. After receiving the signal from the sensor, the control system 2 makes a judgment based on the continuous contact time preset in the shutdown condition setting module according to the conveyor belt model and specifications. If the contact signal duration reaches or exceeds the set value, the control system 2 determines that an abnormal situation requiring shutdown has occurred, and at this time, it will simultaneously issue commands to the alarm device 3 and the shutdown execution mechanism 4.

[0030] Alarm device 3 is an audible and visual alarm. Upon receiving an alarm command from control system 2, it immediately emits both sound and light signals simultaneously. The sound signal is emitted through a high-decibel speaker, while the light signal is achieved through flashing high-brightness LEDs, thus alerting on-site personnel to any abnormalities in the belt conveyor. Stop actuator 4 is a motor control device. Upon receiving a stop command from control system 2, it quickly cuts off the power supply to the belt conveyor system motor or changes the motor's operating state (such as reversing the motor for braking), thereby stopping the motor and the belt, preventing further scratches and extensive damage to the belt from continued operation.

[0031] The above are merely specific embodiments of the present invention, but the technical features of the present invention are not limited thereto. Any simple changes, equivalent substitutions, or modifications made based on the present invention to solve essentially the same technical problems and achieve essentially the same technical effects are all covered within the protection scope of the present invention.

Claims

1. A device for preventing large-area scratches on belts, characterized in that, include: Sensor device (1) is installed at the bottom of the belt conveyor system to monitor the working status of the belt in real time; The control system (2) is connected to the sensor device (1) and is used to receive the signal fed back by the sensor device (1); An alarm device (3) is connected to the control system (2) and is used to issue an alarm when it receives an alarm signal triggered by the control system (2); The shutdown actuator (4) is connected to the control system (2) and is used to perform a shutdown operation when a shutdown signal triggered by the control system (2) is received. When the belt is punctured by a hard object during operation, and the punctured object comes into contact with the preset signal receiving end face of the sensor, the sensor device (1) captures the abnormal contact signal and feeds it back to the control system (2). The control system (2) triggers the alarm device (3) to sound an alarm and controls the shutdown actuator (4) to perform the shutdown operation.

2. The device for preventing large-area scratches on belts according to claim 1, characterized in that, The signal receiving end face of the sensor device (1) is located below the conveyor belt at the material receiving point.

3. The device for preventing large-area scratches on belts according to claim 1, characterized in that, The control system (2) includes a shutdown condition setting module, which is used to set the continuous contact time required for alarm shutdown according to different models and specifications of belt conveyors.

4. The device for preventing large-area scratches on belts according to claim 1, characterized in that, The sensor device (1) is a contact sensor used to detect the contact between a hard object and the signal receiving end face.

5. The device for preventing large-area scratches on belts according to claim 1, characterized in that, The alarm device (3) is an audible and visual alarm that can simultaneously emit sound and light signals to trigger an alarm.

6. The device for preventing large-area scratches on belts according to claim 1, characterized in that, The shutdown actuator (4) is a motor control device used to control the motor of the belt conveyor system to stop running.

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