A tear-resistant protection device for raw coal conveyor belts
By installing pressure and light transmission detection components on the belt conveyor, the problem of belt crack expansion was solved, enabling real-time monitoring and alarms, and reducing maintenance costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DATONG QUESHAN GAOJIAYAO COAL IND CO LTD
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-30
Smart Images

Figure CN224429045U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of belt tear protection devices, specifically a tear protection device for raw coal belt transportation. Background Technology
[0002] In modern coal mine production, belt conveyors often experience significant pressure from coal during coal transportation, leading to tearing. This not only affects construction progress but also causes substantial economic losses to the mine. However, existing belt tear protection systems rely on pressure-triggered alarms, which cannot detect and alert on small penetrating cracks in a timely manner. Continued use can cause belt cracks to widen, resulting in coal leakage and high maintenance costs.
[0003] To address the aforementioned technical problems, this application proposes a tear-resistant protection device for raw coal conveyor belts. Utility Model Content
[0004] I. Technical problems to be solved
[0005] The technical problem this invention aims to solve is that small penetrating cracks on belts cannot be detected and alarmed in a timely manner, and continued use can easily cause the belt cracks to expand.
[0006] II. Technical Solution
[0007] To solve the above-mentioned technical problems, the technical solution provided by this utility model is as follows: a raw coal belt conveyor anti-tear protection device, including two sets of conveyor wheels and a conveyor belt, with a U-shaped positioning frame rotatably connected to both ends of the conveyor wheels, a motor connected to the conveyor wheels installed on the U-shaped positioning frame, and the conveyor belt sleeved on the outside of the two sets of conveyor wheels;
[0008] A pressure monitoring component is installed on the outside of the conveyor wheel to monitor and transmit the pressure of the conveyor belt on the outside of the conveyor wheel.
[0009] A mounting frame is connected between the two side walls of the U-shaped positioning frame. The mounting frame is located between the upper and lower sections of the conveyor belt, and a light-shielding box is installed on the lower side. A light-transmitting detection component is installed on the light-shielding box to monitor and transmit data on the cracks on the conveyor belt.
[0010] The light-shielding box is equipped with cleaning components on both sides, which are used to clean the material receiving surface of the lower section of the conveyor belt.
[0011] As an improvement, the pressure monitoring component includes two sets of arc-shaped device boxes. The outer sides of the transmission wheel are respectively provided with mounting grooves for mounting the arc-shaped device boxes. Multiple sets of thin-film pressure sensors are installed on the outer side of the arc-shaped device boxes.
[0012] As an improvement, the end of the arc-shaped device box is provided with an insert, and the two side walls of the mounting groove are respectively provided with slots for inserting the insert. The two ends of the mounting groove are connected to the arc-shaped device box by bolts.
[0013] As an improvement, the light transmission detection component includes multiple sets of photographic detection cameras and projection light sources. The photographic detection cameras are installed through the upper side wall of the light-shielding box, the projection light sources are installed at the bottom of the light-shielding box, a control switch connected to the projection light sources is installed on the outside of the light-shielding box, and a data transmitter is installed on the inside of the light-shielding box.
[0014] As an improvement, the lower section of the conveyor belt passes through a light-shielding box and is located between multiple sets of photo detection cameras and the projection light source.
[0015] As an improvement, the cleaning assembly includes a support frame and a cleaning brush. The support frame is bolted to the outer wall of the light shield box, and the cleaning brush is mounted on the upper side of the support frame. The upper side of the cleaning brush is in contact with the material receiving surface of the lower section of the conveyor belt.
[0016] III. Beneficial Effects
[0017] The advantages of this utility model compared with the prior art are as follows:
[0018] 1. By using multiple sets of thin-film pressure sensors to detect the pressure of the conveyor belt on the outside of the conveyor wheel, the pressure of the conveyor belt can be monitored in real time, and the coal feeding pressure can be adjusted in a timely manner to protect the conveyor belt.
[0019] 2. The conveyor belt passes through the light shield box. Through the cooperation of the camera, projection light source and data transmission device, small penetrating cracks on the conveyor belt are detected in time and alarms are issued. Timely maintenance is carried out to prevent the belt cracks from expanding. Attached Figure Description
[0020] Figure 1 This is a schematic diagram of the bottom structure of a tear-resistant protection device for raw coal conveyor belts according to this utility model.
[0021] Figure 2 This is a schematic diagram of the middle section structure of a tear-resistant protection device for raw coal conveyor belts according to this utility model.
[0022] Figure 3 This is a schematic diagram of the outer connection structure of the conveyor wheel of a raw coal belt conveyor anti-tear protection device according to the present invention.
[0023] Figure 4 This is an exploded view of the outer structure of the conveyor wheel of a raw coal belt conveyor anti-tear protection device according to this utility model.
[0024] As shown in the figure: 1. Conveyor wheel; 2. U-shaped positioning frame; 3. Conveyor belt; 4. Motor; 5. Data transmitter; 6. Mounting slot; 7. Arc-shaped equipment box; 8. Thin-film pressure sensor; 9. Slot; 10. Insert; 11. Bolt; 12. Mounting bracket; 13. Light shield; 14. Photo detection camera; 15. Projection light source; 16. Control switch; 17. Support frame; 18. Cleaning brush. 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 of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.
[0026] Example 1
[0027] As attached Figure 1 As shown, a tear-resistant protection device for raw coal conveyor belt includes two sets of conveyor wheels 1 and a conveyor belt 3. The two ends of the conveyor wheels 1 are rotatably connected to U-shaped positioning frames 2. A motor 4 connected to the conveyor wheels 1 is installed on the U-shaped positioning frames 2. The conveyor belt 3 is sleeved on the outside of the two sets of conveyor wheels 1. A support wheel or support plate can be installed on the lower side of the upper section of the conveyor belt 3 to support the conveyor belt 3 and reduce the downward pressure on the conveyor belt 3.
[0028] To promptly resolve the coal feeding pressure issue on conveyor belt 3, as per attached... Figure 1 Appendix Figure 3 and attached Figure 4 As shown, a pressure monitoring component is installed on the outer side of the conveyor wheel 1. The pressure monitoring component includes two sets of arc-shaped equipment boxes 7. The outer sides of the conveyor wheel 1 are respectively provided with mounting grooves 6 for mounting the arc-shaped equipment boxes 7. The ends of the arc-shaped equipment boxes 7 are provided with inserts 10. The two side walls of the mounting grooves 6 are respectively provided with slots 9 for inserting the inserts 10. The two ends of the mounting grooves 6 are connected to the arc-shaped equipment boxes 7 by bolts 11, fixing the arc-shaped equipment boxes 7 inside the mounting grooves 6. Multiple sets of thin-film pressure sensors 8 are installed on the outer side of the arc-shaped equipment boxes 7. When the conveyor wheel 1 rotates, the pressure of the conveyor belt 3 on the outer side of the conveyor wheel 1 is monitored by the multiple sets of thin-film pressure sensors 8. The arc-shaped equipment boxes 7 are equipped with batteries and data transmission devices. When the pressure data exceeds the threshold, the data is transmitted to the control terminal for warning, so that the staff in the feeding area can adjust the feeding amount in time.
[0029] As attached Figure 1 and attached Figure 2 As shown in the attached document Figure 1 and attached Figure 2As shown, a mounting bracket 12 is connected between the two side walls of the U-shaped positioning frame 2. The mounting bracket 12 is located between the upper and lower sections of the conveyor belt 3, and a light-shielding box 13 is installed on its lower side. A light transmission detection component is installed on the light-shielding box 13. The light transmission detection component includes multiple sets of photographic detection cameras 14 and a projection light source 15. The photographic detection cameras 14 pass through and are installed on the upper side wall of the light-shielding box 13. The projection light source 15 is installed at the bottom of the light-shielding box 13. The lower section of the conveyor belt 3 passes through the light-shielding box 13 and is located between the multiple sets of photographic detection cameras 14 and the projection light source 15. A control switch 16 connected to the projection light source 15 is installed on the outside of the 13. The projection light source 15 is turned on by the control switch 16. When the lower section of the conveyor belt 3 passes through the light shield box 13, multiple sets of photo detection cameras 14 continuously take pictures of the conveyor belt 3. A data transmission device 5 is installed inside the light shield box 13. The photo data in the photo detection camera 14 is transmitted to the control terminal through the data transmission device 5. The control terminal analyzes the photos in conjunction with AI, promptly detects small penetrating cracks on the conveyor belt 3 and issues an alarm, and performs timely maintenance to prevent the belt cracks from expanding.
[0030] Example 2
[0031] Based on Example 1, in order to prevent the coal on conveyor belt 3 from affecting the detection of small penetrating cracks, as shown in the attached... Figure 2 As shown, the light-shielding box 13 is equipped with cleaning components on opposite sides. The cleaning components include a support frame 17 and a cleaning brush 18. The support frame 17 is bolted to the outer wall of the light-shielding box 13. The cleaning brush 18 is installed on the upper side of the support frame 17. The upper side of the cleaning brush 18 is in contact with the material receiving surface of the lower section of the conveyor belt 3. During the conveying process of the conveyor belt 3, the cleaning brush 18 cleans the coal material remaining on the material receiving surface of the conveyor belt 3 to prevent the coal material from accumulating on the conveyor belt 3 and affecting the detection of small penetrating cracks.
[0032] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, 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 process, method, article, or apparatus.
[0033] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
[0034] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.
Claims
1. A tear-resistant protection device for raw coal conveyor belts, comprising two sets of conveyor wheels (1) and a conveyor belt (3), wherein a U-shaped positioning frame (2) is rotatably connected to both ends of the conveyor wheels (1), and a motor (4) connected to the conveyor wheels (1) is installed on the U-shaped positioning frame (2), and the conveyor belt (3) is sleeved on the outside of the two sets of conveyor wheels (1), characterized in that: A pressure monitoring component is installed on the outside of the conveyor wheel (1). The pressure of the conveyor belt (3) on the outside of the conveyor wheel (1) is monitored and data is transmitted through the pressure monitoring component. The U-shaped positioning frame (2) is connected to the two side walls by an installation frame (12). The installation frame (12) is located between the upper and lower sections of the conveyor belt (3) and a light shield box (13) is installed on the lower side. A light transmission detection component is installed on the light shield box (13) to monitor and transmit data on the cracks on the conveyor belt (3). The light-shielding box (13) is equipped with cleaning components on both sides, and the material receiving surface of the lower section of the conveyor belt (3) is cleaned by the cleaning components.
2. A raw coal belt conveyance anti-tearing protection device according to claim 1, characterized in that: The pressure monitoring assembly includes two sets of arc-shaped device boxes (7). The outer sides of the transmission wheel (1) are respectively provided with mounting grooves (6) for mounting the arc-shaped device boxes (7). Multiple sets of thin-film pressure sensors (8) are installed on the outer side of the arc-shaped device boxes (7).
3. The anti-tear protection device for raw coal conveyor belts according to claim 2, characterized in that: The arc-shaped equipment box (7) is provided with a strip (10) at its end. The two side walls of the mounting groove (6) are respectively provided with slots (9) for inserting the strip (10). The two ends of the mounting groove (6) are connected to the arc-shaped equipment box (7) by bolts (11).
4. The anti-tear protection device for raw coal conveyor belts according to claim 1, characterized in that: The light transmission detection component includes multiple sets of photographic detection cameras (14) and projection light sources (15). The photographic detection cameras (14) pass through and are installed on the upper side wall of the light shield box (13). The projection light sources (15) are installed at the bottom of the light shield box (13). A control switch (16) connected to the projection light sources (15) is installed on the outside of the light shield box (13). A data transmitter (5) is installed on the inside of the light shield box (13).
5. The anti-tear protection device for raw coal conveyor belts according to claim 4, characterized in that: The lower section of the conveyor belt (3) passes through the light shield box (13) and is located between multiple sets of photo detection cameras (14) and the projection light source (15).
6. The anti-tear protection device for raw coal conveyor belts according to claim 1, characterized in that: The cleaning assembly includes a support frame (17) and a cleaning brush (18). The support frame (17) is bolted to the outer wall of the light shield (13). The cleaning brush (18) is mounted on the upper side of the support frame (17). The upper side of the cleaning brush (18) is in contact with the material receiving surface of the lower section of the conveyor belt (3).