Abnormality detection device for a belt conveyor

Abstract

The utility model discloses a kind of abnormal detection devices of belt conveyor, including the first trigger rope being arranged above transmission belt, the second trigger rope being arranged below transmission belt, the sensor module being arranged at the side of transmission belt, the first connecting rope being connected between sensor module and the first trigger rope, the second connecting rope being connected between sensor module and the second trigger rope, the alarm module being connected to sensor module, the limit switch being connected to sensor;The device is simple structure, easy to dismount, the first trigger rope, the second trigger rope and the third trigger rope of side surface are formed three-dimensional monitoring network by up and down transmission belt, comprehensively cover edge tear, belt surface damage and foreign matter insertion etc. Abnormal, make up traditional blind area of protection, and adopt steel wire rope trigger rope cooperation with the rope sleeve of belt sliding arc surface, give consideration to strength and sensitivity, ensure trigger accuracy, when sensor linkage limit switch emergency stop equipment in transmission belt abnormal, with good practicality.

Description

Technical Field

[0001] This utility model belongs to the technical field of belt conveyors, specifically relating to a belt conveyor belt abnormality detection device. Background Technology

[0002] Conveyor belt conveyors, as a highly efficient material conveying equipment, have been widely used in numerous industrial fields such as mines, ports, power plants, and steel mills due to their significant advantages, including large conveying capacity, long conveying distance, robust and durable structure, and simple maintenance and operation. They have become key equipment for achieving continuous and stable material conveying in various industry production processes, playing an irreplaceable role in ensuring smooth production. In recent years, influenced by the in-depth promotion of personnel reduction and efficiency improvement efforts in various industries, the operation and monitoring modes of various belt systems have undergone fundamental changes. The traditional fixed-person, fixed-belt monitoring operation mode has been eliminated, replaced by a large-area, timed inspection mode.

[0003] While this new model reduces labor costs to some extent, existing automatic detection and control systems suffer from incomplete coverage, making it difficult to comprehensively and in real-time monitor various abnormal conditions during belt operation. This results in abnormalities not being detected and addressed in a timely manner, posing a threat to the safe and stable operation of belt conveyors. During belt conveyor operation, incidents such as sharp foreign objects in the material puncturing the belt, damaged idlers scratching or tearing the belt, damaged rollers scratching or tearing the belt, and belt misalignment damaging the belt occur frequently. If these abnormalities are not handled promptly, they can not only affect production progress but also potentially lead to serious equipment failures and safety accidents, causing huge economic losses.

[0004] To ensure the safe operation of belt conveyors, traditional technologies employ various safety protection measures. These include using belt misalignment switches to detect belt deviation, automatic belt correction equipment to correct belt misalignment, magnetic separators to remove sharp iron debris from the material, and multiple video monitoring systems to detect anomalies and promptly shut down the machine. These measures effectively reduce the occurrence of accidents such as belt tearing and play a positive role in ensuring the safe operation of belt conveyors.

[0005] However, despite the aforementioned protective measures, belt conveyors still have significant technical shortcomings in actual operation. Specifically, they often cannot provide timely feedback on abnormal conditions such as foreign objects penetrating the belt or belt edge tearing. When these abnormalities occur, the lack of effective real-time detection means that early warnings cannot be issued quickly and corresponding handling measures cannot be taken, leading to the continued development of abnormalities and causing more serious equipment damage and production accidents. Therefore, there is an urgent need for a belt conveyor abnormality detection device. Utility Model Content

[0006] To address some or all of the technical problems existing in the prior art, this utility model provides a conveyor belt abnormality detection device for a belt conveyor. The device includes a first trigger rope disposed above the conveyor belt, a second trigger rope disposed below the conveyor belt, a sensor module disposed on one side of the conveyor belt, a first connecting rope connecting the sensor module and the first trigger rope, a second connecting rope connecting the sensor module and the second trigger rope, an alarm module connected to the sensor module, and a limit switch connected to the sensor.

[0007] The first trigger rope is movably fitted with multiple first rope sleeves, which are fixed above the conveyor belt by a first bracket. The second trigger rope is movably fitted with multiple second rope sleeves, which are fixed below the conveyor belt by a second bracket. The end of the first trigger rope away from the first connecting rope and the end of the second trigger rope away from the second connecting rope are connected by a third trigger rope, which is located on the side of the conveyor belt away from the sensor module.

[0008] Furthermore, in the above-mentioned belt conveyor abnormality detection device, both the inner walls of the first rope sleeve and the second rope sleeve are provided with sliding arc surfaces.

[0009] Furthermore, in the aforementioned belt conveyor abnormality detection device, both the first trigger rope and the second trigger rope are made of steel wire rope.

[0010] Furthermore, in the above-mentioned belt conveyor belt abnormality detection device, the alarm module is connected to an indicator light.

[0011] Furthermore, in the above-mentioned belt conveyor abnormality detection device, the alarm module is connected to a buzzer.

[0012] The conveyor belt anomaly detection device of this utility model has the following advantages and beneficial effects:

[0013] This device has a simple structure and is easy to assemble and disassemble. It forms a three-dimensional monitoring network through the first and second trigger ropes on the top and bottom of the conveyor belt and the third trigger rope on the side, which comprehensively covers anomalies such as edge tears, belt surface damage and foreign object insertion, making up for the blind spots of traditional protection. Moreover, it uses steel wire rope trigger ropes with rope sleeves with sliding arc surfaces to balance strength and sensitivity, ensuring accurate triggering. When the conveyor belt is abnormal, the sensor triggers the limit switch to stop the device immediately. The alarm module provides dual sound and light reminders to achieve timely fault response and prevent the accident from escalating. It has good safety and stability. Attached Figure Description

[0014] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only for further understanding of the embodiments of this utility model and constitute a part of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. In the drawings:

[0015] Figure 1 This is a schematic diagram of the abnormality detection device for the conveyor belt of the belt conveyor of this utility model.

[0016] Explanation of reference numerals in the attached figures:

[0017] 1. First trigger rope; 11. First connecting rope; 12. First rope loop; 13. First bracket; 2. Second trigger rope; 21. Second connecting rope; 22. Second rope loop; 23. Second bracket; 3. Third trigger rope; 4. Alarm module; 5. Limit switch; 6. Sensor module; 100. Conveyor belt. Detailed Implementation

[0018] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below in conjunction with specific embodiments and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are within the scope of protection of this utility model.

[0019] like Figure 1As shown, this utility model discloses a conveyor belt abnormality detection device for a belt conveyor, including a first trigger rope 1 disposed above the conveyor belt 100, a second trigger rope 2 disposed below the conveyor belt 100, a sensor module 6 disposed on one side of the conveyor belt 100, a first connecting rope 11 connecting the sensor module 6 and the first trigger rope 1, a second connecting rope 21 connecting the sensor module 6 and the second trigger rope 2, an alarm module 4 connected to the sensor module 6, and a limit switch 5 connected to the sensor. The length of the first trigger rope 1 is adapted to the width of the conveyor belt 100, and it can cover the main area above the conveyor belt 100. The second trigger rope 2 is arranged in a similar manner to the first trigger rope 1, and its length is also adapted to the width of the conveyor belt 100 to ensure effective coverage of the area below the conveyor belt 100. The limit switch 5 is associated with the control system of the belt conveyor. The alarm module 4 is used to issue a warning signal when an abnormality is detected. Multiple first rope sleeves 12 are movably sleeved around the outer periphery of the first trigger rope 1. The rope loops 12 are evenly distributed along the length of the first trigger rope 1. The first rope loops 12 are fixed above the conveyor belt 100 by the first bracket 13. The position of the first bracket 13 is reasonably planned so that it can stably support the first rope loops 12 and the first trigger rope 1 without interfering with the material conveying of the conveyor belt 100. Multiple second rope loops 22 are movably sleeved on the outer periphery of the second trigger rope 2. These second rope loops 22 are evenly distributed along the length of the second trigger rope 2. The second rope loops 22 are fixed below the conveyor belt 100 by the second bracket 23. The end of the first trigger rope 1 away from the first connecting rope 11 and the end of the second trigger rope 2 away from the second connecting rope 21 are connected by a third trigger rope 3. The third trigger rope 3 is located on the side of the conveyor belt 100 away from the sensor module 6. The arrangement of the third trigger rope 3 forms a structure that surrounds the side of the conveyor belt 100, which can detect the tearing of the edge of the conveyor belt 100. When the edge of the conveyor belt 100 is torn and sagging or curled up, the third trigger rope 3 will be disturbed, thereby transmitting an abnormal signal.

[0020] As a specific embodiment, in the belt conveyor abnormality detection device of this utility model, the inner walls of the first rope sleeve 12 and the second rope sleeve 22 are both provided with sliding arc surfaces. The sliding arc surfaces allow the first trigger rope 1 to move flexibly in the up, down, left and right directions within the first rope sleeve 12. When the conveyor belt 100 experiences tearing, warping, or insertion of long strip-shaped foreign objects, the first trigger rope 1 can be disturbed in time.

[0021] As a specific implementation, in the belt conveyor abnormality detection device of this utility model, both the first trigger rope 1 and the second trigger rope 2 are made of steel wire rope. Steel wire rope has good mechanical properties, can withstand certain tensile and impact forces, is not easy to break, is suitable for use in the relatively complex industrial environment where belt conveyors are located, and extends the service life of the trigger rope.

[0022] As a specific implementation, in the conveyor belt abnormality detection device of the belt conveyor of this utility model, the alarm module 4 is connected to an indicator light. The indicator light can emit a conspicuous light signal, which can promptly remind the staff that the conveyor belt 100 has an abnormality, so that the staff can quickly arrive at the scene to check and deal with it.

[0023] In one specific implementation, in the conveyor belt abnormality detection device of the belt conveyor of this utility model, the alarm module 4 is connected to a buzzer. The buzzer can emit a loud sound signal, which can promptly remind the staff that the conveyor belt 100 has an abnormality, so that the staff can quickly arrive at the scene to check and deal with it.

[0024] The working principle of the belt abnormality detection device for the belt conveyor of this utility model is as follows:

[0025] During normal production, this device is placed in a position that does not affect the normal transport of items on the conveyor belt 100, preventing interference between items on top of the conveyor belt 100 and the trigger ropes. At this time, the conveyor belt 100 runs smoothly, the trigger ropes are stationary, the sensor module 6 does not issue trigger signals, and the belt conveyor operates normally. When the conveyor belt 100 experiences damage, tearing, sagging, or upward tilting at its edge, the torn edge will contact and disturb the third trigger rope 3. This disturbance will be transmitted to the corresponding connecting rope via the first trigger rope 1 or the second trigger rope 2. The connecting rope pulls the sensor module 6, which then triggers the limit switch 5, stopping the belt conveyor. When alarm module 4 is triggered, the indicator light illuminates and the buzzer sounds an alarm. When the conveyor belt 100 experiences a tear and sagging, the sagging tear disturbs the second trigger rope 2. The second trigger rope 2 transmits a signal to the sensor module 6 via the second connecting rope 21. The sensor module 6 triggers the limit switch 5 and alarm module 4, thereby achieving an emergency stop and alarm for the belt conveyor. When the conveyor belt 100 experiences a tear and upward curling, or when a long strip of foreign object is inserted into the belt surface, the upward curling tear or foreign object disturbs the first trigger rope 1. The first trigger rope 1 transmits a signal to the sensor module 6 via the first connecting rope 11, thereby triggering the limit switch 5 and alarm module 4, achieving the purpose of stopping the conveyor and triggering an alarm.

[0026] Once the accident has been handled, the staff can reset the trigger rope in the device to its normal position, and at the same time reset the limit switch 5 and other components, so that the device can be put back into use to continue to detect abnormalities in the conveyor belt 100.

[0027] In summary, compared with the prior art, the conveyor belt anomaly detection device of this utility model has the following advantages and beneficial effects:

[0028] This device has a simple structure and is easy to assemble and disassemble. It forms a three-dimensional monitoring network through the first trigger rope 1 and the second trigger rope 2 above and below the conveyor belt 100 and the third trigger rope 3 on the side, which fully covers abnormalities such as edge tearing, belt surface damage and foreign object insertion, making up for the blind spots of traditional protection. Moreover, it uses steel wire rope trigger rope with a rope sleeve with a sliding arc surface to balance strength and sensitivity and ensure accurate triggering. When the conveyor belt 100 is abnormal, the sensor triggers the limit switch 5 to stop the equipment immediately. The alarm module 4 provides dual sound and light reminders to realize timely fault response and prevent the accident from escalating. It has good safety and stability.

[0029] It should be noted that, unless otherwise expressly specified and limited, the term "connection" or its synonyms should be interpreted broadly in this document. For example, "connection" can be a fixed connection or a detachable connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances. Furthermore, expressions such as "first" and "second" are merely used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. At the same time, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. In addition, "front," "rear," "left," "right," "upper," and "lower" in this document refer to the placement state shown in the accompanying drawings.

[0030] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it; although this utility model has been described in detail with reference to the embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A belt conveyor belt abnormality detection device, characterized in that, The belt conveyor abnormality detection device includes a first trigger rope disposed above the conveyor belt, a second trigger rope disposed below the conveyor belt, a sensor module disposed on one side of the conveyor belt, a first connecting rope connecting the sensor module and the first trigger rope, a second connecting rope connecting the sensor module and the second trigger rope, an alarm module connected to the sensor module, and a limit switch connected to the sensor, wherein: The first trigger rope is movably fitted with multiple first rope sleeves, which are fixed above the conveyor belt by a first bracket. The second trigger rope is movably fitted with multiple second rope sleeves, which are fixed below the conveyor belt by a second bracket. The end of the first trigger rope away from the first connecting rope and the end of the second trigger rope away from the second connecting rope are connected by a third trigger rope, which is located on the side of the conveyor belt away from the sensor module.

2. The belt conveyor abnormality detection device for a belt conveyor according to claim 1, characterized in that, Both the first and second rope loops have sliding arc surfaces on their inner walls.

3. The belt conveyor abnormality detection device for a belt conveyor according to claim 1, characterized in that, Both the first trigger rope and the second trigger rope are made of steel wire rope.

4. The belt conveyor abnormality detection device for a belt conveyor according to claim 1, characterized in that, The alarm module is connected to an indicator light.

5. The belt conveyor abnormality detection device for a belt conveyor according to claim 1, characterized in that, The alarm module is connected to a buzzer.

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