A downhole coal gangue conveying belt anti-tearing protection device
By installing a multi-dimensional detection system on the underground coal and gangue conveyor belt, the tension, temperature and deformation can be monitored in real time, which solves the problem of easy tearing of the underground coal and gangue conveyor belt, realizes early identification and timely warning, and improves the safety of the equipment and the continuity of production.
Patent Information
- Application Number
- CN202521346640.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-06-30
- Publication Date
- 2026-05-29
- Estimated Expiration
- 2035-06-30
AI Technical Summary
Underground coal and gangue conveyor belts are prone to tearing during transportation due to the irregular shape of the coal and gangue and the impact and compression. Traditional monitoring methods are limited and outdated, leading to equipment failure and safety hazards.
A multi-dimensional detection system, including a shaft tension sensor, fiber optic sensor, and high-definition camera, is adopted to monitor the tension, temperature, and deformation of the conveyor belt in real time. Combined with the central control box, data analysis and alarms are performed to achieve early identification and warning of tears.
This significantly improves the accuracy and timeliness of identifying potential tear hazards, avoids missed and false detections, stops losses in time, and ensures the continuity and safety of coal mine production.
Smart Images

Figure CN224298125U_ABST
Abstract
Description
Technical Field
[0001] This utility model specifically relates to the technical field of tear-resistant protection devices, and more specifically to a tear-resistant protection device for underground coal and gangue conveyor belts. Background Technology
[0002] In underground coal and gangue transportation operations, conveyor belts bear a heavy material transport task but face many severe challenges. On the one hand, the irregular shape and sharp edges of coal and gangue, as well as the impact and compression during transportation, can easily cause local wear and tear on the conveyor belt. Once a tear occurs and is not dealt with in time, it will expand rapidly, causing equipment failure or even safety accidents. On the other hand, traditional conveyor belt monitoring methods are limited, relying mainly on manual inspections or simple sensors. These methods suffer from problems such as monitoring lag, insufficient accuracy, and limited coverage, making them unsuitable for the complex and harsh underground working environment and unable to effectively prevent tearing risks, posing a great threat to the continuity and safety of coal mine production. Utility Model Content
[0003] The purpose of this utility model is to provide an anti-tear protection device for underground coal and gangue conveyor belts. By installing the anti-tear protection mechanism with the coal and gangue conveying mechanism, the coal and gangue conveyor belt has multi-dimensional detection and accurate early warning functions, thereby solving the technical problems mentioned in the background art.
[0004] To achieve the above objectives, this utility model provides the following technical solution:
[0005] A tear-resistant protection device for underground coal and gangue conveyor belts, comprising:
[0006] A coal gangue conveying mechanism, on which a tear-resistant protection mechanism is fixedly installed;
[0007] The coal gangue conveying mechanism includes a conveyor belt mounting frame, on the upper end of which a conveyor belt mechanism is mounted, and tensioners are symmetrically mounted on one end of the conveyor belt mounting frame; one end of the conveyor belt mechanism is the driving end, and the other end is the driven end, wherein the symmetrically arranged tensioners are located on the driven end, and a shaft tension sensor is mounted on one end of the roller at the driven end, and a signal transmission interface is provided on the upper end of the shaft tension sensor.
[0008] As a further technical solution of this utility model, one end of the conveyor belt mounting frame is fixedly connected to the bottom mounting frame by bolts, and the bottom mounting frame is symmetrically mounted with support mounting frames at both ends. The symmetrically mounted support mounting frames are located on both sides of the conveyor belt mounting frame and the conveyor belt mechanism.
[0009] As a further technical solution of this utility model, the upper ends of the symmetrically installed support mounting brackets are fixedly connected to the central control box, and an integrated sound and light warning light is installed on the upper surface of the central control box, with a control unit on one side.
[0010] As a further technical solution of this utility model, a camera mounting base is fixedly installed on the lower surface of the central control box, the upper end of the camera mounting base is connected to the inside of the central control box, and a high-definition camera is fixedly installed on the lower surface. The high-definition camera is located at the upper end of the conveyor belt mechanism.
[0011] As a further technical solution of this utility model, the lower end of the central control box is provided with multiple wire holes in a rectangular array; the lower surface of the central control box is also provided with multiple sensor mounting bases in a rectangular array, and each of the multiple sensor mounting bases is equipped with an optical fiber sensor. The optical fiber sensor is located at the upper end of the conveyor belt mechanism, and the optical fiber sensor cable is connected to the inside of the central control box through multiple wire holes.
[0012] Compared with the prior art, the beneficial effects of this utility model are:
[0013] This invention uses a through-shaft tension sensor to monitor tension changes in the conveyor belt mechanism, which can capture sudden tension changes caused by tearing; a fiber optic sensor to detect surface temperature and deformation anomalies of the belt, enabling early identification of minor damage; and a high-definition camera to intuitively monitor the material and belt condition. The three work together to build a multi-dimensional monitoring system from the perspectives of mechanics, physical properties, and vision, which greatly improves the accuracy and timeliness of identifying potential tearing hazards and avoids the problems of missed detection and false detection caused by a single monitoring method.
[0014] In this invention, the central control box serves as the core control unit. After receiving data from the through-shaft tension sensor, high-definition camera, and fiber optic sensor, it can quickly analyze and judge the data, and trigger an alarm with an integrated sound and light warning light, thus gaining valuable time to stop the loss in time. Attached Figure Description
[0015] Figure 1 This is a three-dimensional structural diagram of the present invention.
[0016] Figure 2 This utility model Figure 1 Top view.
[0017] Figure 3 This utility model Figure 2 A bottom view.
[0018] Figure 4 This utility model Figure 1 A schematic diagram of the split structure.
[0019] Figure 5 This utility model Figure 4 A bottom view.
[0020] Figure 6 This utility model Figure 2 A magnified view of a portion of the image.
[0021] Figure 7 This utility model Figure 5 A magnified view of a portion of the image.
[0022] In the diagram: 1-Coal and gangue conveying mechanism, 2-Tear protection mechanism;
[0023] 11-Conveyor belt mounting frame, 12-Conveyor belt mechanism, 13-Tensioner, 14-Through shaft tension sensor, 15-Signal transmission interface;
[0024] 21-Bottom mounting bracket, 22-Support mounting bracket, 23-Central control box, 24-Integrated sound and light warning light, 25-Control unit, 26-Camera mounting bracket, 27-High-definition camera, 28-Wire hole, 29-Sensor mounting bracket, 210-Fiber optic sensor. Detailed Implementation
[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0026] Please see Figure 1-7 In this embodiment of the utility model, an anti-tear protection device for underground coal gangue conveyor belt includes a coal gangue conveying mechanism 1, on which an anti-tear protection mechanism 2 is fixedly installed.
[0027] The coal gangue conveying mechanism 1 includes a conveyor belt mounting frame 11, on which a conveyor belt mechanism 12 is mounted. Tensioners 13 are symmetrically mounted on one end of the conveyor belt mounting frame 11. One end of the conveyor belt mechanism 12 is the driving end, and the other end is the driven end. The symmetrically arranged tensioners 13 are located on the driven end, and a shaft tension sensor 14 is mounted on one end of the roller at the driven end. A signal transmission interface 15 is provided on the upper end of the shaft tension sensor 14.
[0028] A camera mounting base 26 is fixedly installed on the lower surface of the central control box 23. The upper end of the camera mounting base 26 is connected to the inside of the central control box 23, and a high-definition camera 27 is fixedly installed on the lower surface. The high-definition camera 27 is located on the upper end of the conveyor belt mechanism 12.
[0029] The lower end of the central control box 23 is provided with multiple wire holes 28 in a rectangular array; the lower surface of the central control box 23 is also provided with multiple sensor mounting bases 29 in a rectangular array, and each of the multiple sensor mounting bases 29 is equipped with an optical fiber sensor 210. The optical fiber sensor 210 is located on the upper end of the conveyor belt mechanism 12, and the cable of the optical fiber sensor 210 is connected to the inside of the central control box 23 through the multiple wire holes 28.
[0030] By adopting the above technical solution, the tension change of the conveyor belt mechanism 12 can be monitored by the through-shaft tension sensor 14, which can capture the tension change caused by tearing; the fiber optic sensor 210 senses the surface temperature and deformation abnormality of the belt body, realizing the early identification of minor damage; and the high-definition camera 27 intuitively monitors the material and belt body condition. The three work together to build a multi-dimensional monitoring system from the mechanical, physical characteristics and visual levels, which greatly improves the accuracy and timeliness of tearing risk identification and avoids the problems of missed detection and false detection of single monitoring methods.
[0031] In this embodiment, one end of the conveyor belt mounting frame 11 is fixedly connected to the bottom mounting frame 21 by bolts. The bottom mounting frame 21 has symmetrically installed support mounting frames 22 at both ends. The symmetrically installed support mounting frames 22 are located on both sides of the conveyor belt mounting frame 11 and the conveyor belt mechanism 12.
[0032] The upper ends of the symmetrically installed support mounting brackets 22 are fixedly connected to the central control box 23. The upper surface of the central control box 23 is equipped with an integrated sound and light warning light 24, and a control unit 25 is provided on one side.
[0033] By adopting the above technical solution, the central control box 23, as the core control unit, can quickly analyze and judge the data after receiving the data from the through-shaft tension sensor 14, the high-definition camera 27 and the fiber optic sensor 210, and link the sound and light integrated warning light 24 to issue an alarm, thus gaining valuable time for timely loss prevention.
[0034] The working principle of this utility model is as follows: the through-shaft tension sensor 14 is installed at one end of the roller at the driven end of the conveyor belt mechanism 12. When the conveyor belt mechanism 12 is running, it detects the tension on the roller in real time. When the conveyor belt experiences abnormal conditions such as tearing or jamming, it will cause a change in tension. The through-shaft tension sensor 14 converts the tension signal into an electrical signal and transmits it to the central control box 23 through the signal transmission interface 15.
[0035] The fiber optic sensor 210 utilizes the sensitivity of optical fiber to temperature and minute deformation to sense temperature changes and minute deformations on the surface of the conveyor belt caused by the impact and friction of coal and gangue. If an abnormality is detected, the fiber optic sensor 210 converts the optical signal change into an electrical signal, which is transmitted to the central control box 23 via the cable connected through the wire hole 28. At the same time, the high-definition camera 27 performs real-time image acquisition of the material and surface condition of the conveyor belt at the upper end of the conveyor belt mechanism 12, and the image data is also transmitted to the central control box 23.
[0036] As the core control unit, the central control box 23 receives data from the through-shaft tension sensor 14, the high-definition camera 27 and the fiber optic sensor 210, and can quickly analyze and judge the data, and link the sound and light integrated warning light 24 to issue an alarm, so as to buy valuable time for timely loss prevention.
[0037] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
[0038] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style of the specification is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.
Claims
1. A tear-resistant protection device for underground coal and gangue conveyor belts, characterized in that: include A coal gangue conveying mechanism (1) is provided with a tear-resistant protection mechanism (2) fixedly installed on the coal gangue conveying mechanism (1); The coal gangue conveying mechanism (1) includes a conveyor belt mounting frame (11), on which a conveyor belt mechanism (12) is mounted, and a tensioner (13) is symmetrically mounted on one end of the conveyor belt mounting frame (11); one end of the conveyor belt mechanism (12) is the driving end and the other end is the driven end, wherein the symmetrically arranged tensioner (13) is located on the driven end, and a shaft tension sensor (14) is mounted on one end of the roller of the driven end, and a signal transmission interface (15) is provided on the upper end of the shaft tension sensor (14).
2. The anti-tear protection device for underground coal and gangue conveyor belts according to claim 1, characterized in that: The bottom of one end of the conveyor belt mounting frame (11) is fixedly connected to the bottom mounting frame (21) by bolts. The bottom mounting frame (21) has symmetrically installed support mounting frames (22) at both ends. The symmetrically installed support mounting frames (22) are located on both sides of the conveyor belt mounting frame (11) and the conveyor belt mechanism (12).
3. The anti-tear protection device for underground coal and gangue conveyor belts according to claim 2, characterized in that: The upper ends of the symmetrically installed support mounting brackets (22) are fixedly connected to the central control box (23). The upper surface of the central control box (23) is equipped with an integrated sound and light warning light (24), and a control unit (25) is provided on one side.
4. The anti-tear protection device for underground coal and gangue conveyor belts according to claim 3, characterized in that: A camera mounting base (26) is fixedly installed on the lower surface of the central control box (23). The upper end of the camera mounting base (26) is connected to the inside of the central control box (23). A high-definition camera (27) is fixedly installed on the lower surface. The high-definition camera (27) is located on the upper end of the conveyor belt mechanism (12).
5. The anti-tear protection device for underground coal and gangue conveyor belts according to claim 4, characterized in that: The lower end of the central control box (23) is provided with multiple wire holes (28) in a rectangular array; the lower surface of the central control box (23) is also provided with multiple sensor mounting bases (29) in a rectangular array, and each of the multiple sensor mounting bases (29) is equipped with an optical fiber sensor (210). The optical fiber sensor (210) is located on the upper end of the conveyor belt mechanism (12), and the cable of the optical fiber sensor (210) is connected to the inside of the central control box (23) through multiple wire holes (28).
