A belt conveyor tear detection device

Abstract

The utility model discloses a kind of belt conveyor tearing detection devices, including rack and pouch net, the rack is evenly installed with support on four corners, fixed shaft is rotatably installed on support, pull rope displacement sensor is evenly installed on rack on four corners, pull rope displacement sensor output end is connected with pull rope, pull rope is wound on pouch net after passing through adjacent fixed shaft, pouch net is located below belt conveyor easy tearing end. Through the cooperation setting of pull rope displacement sensor and pouch net, when the belt of belt conveyor is torn, just one material falls on pouch net, pouch net can pull pull rope to give pull rope displacement sensor signal, so that belt conveyor is stopped, speed is improved and accuracy is improved.

Description

Technical Field

[0001] This utility model relates to the technical field of belt conveyor tear detection devices, and in particular to a belt conveyor tear detection device. Background Technology

[0002] There are two existing types of belt tear protection sensors: one is the tray-type tear sensor, which works by releasing coal from the tear into the sensor's tray after the belt tears, triggering the sensor to send a stop signal to the belt conveyor controller, thus providing protection. The disadvantage of this type of tear sensor is its slow response; it only detects the tear after a large opening has formed, at which point the damage is already significant, and the time required for troubleshooting and production recovery is too long, resulting in a significant impact on production. The second type is a belt tear monitoring device using visual recognition technology. Multiple visual recognition devices are installed below the upper belt to monitor whether the belt has been punctured by a sharp object. However, due to the high levels of coal dust at the raw coal belt conveyor site, as well as the belt conveyor's water spray dust suppression system, the visual cameras are severely contaminated, rendering the device unusable. Furthermore, this method is costly and has a high failure rate. Therefore, there is a need to design an accurate and rapid belt conveyor tear detection device. Utility Model Content

[0003] Therefore, it is necessary to provide a belt conveyor tear detection device to address the aforementioned technical problems of insufficient speed and accuracy in detection.

[0004] To achieve the above objectives, this utility model provides a belt conveyor tear detection device, including a frame and a mesh net. Each of the four corners of the frame is equipped with a bracket, and a fixed shaft is rotatably mounted on the bracket. Each of the four corners of the frame is equipped with a pull rope displacement sensor. The output end of the pull rope displacement sensor is connected to a pull rope. The pull rope passes through the adjacent fixed shaft and then wraps around the mesh net. The mesh net is located below the easily torn end of the belt conveyor.

[0005] Preferably, a sleeve is installed on the bracket, the sleeve is located below the fixed shaft, and a locking block is wound on the pull rope, the locking block being slidably engaged inside the sleeve.

[0006] Preferably, a counterweight ring is wound around the pull rope.

[0007] Preferably, the card block is spherical.

[0008] Preferably, the outer diameter of the counterweight ring is larger than the outer diameter of the sleeve.

[0009] Preferably, triangular steel is installed on both sides of the frame, and belt roller support frames are installed on the triangular steel.

[0010] Compared with existing technologies, this technical solution has at least one of the following beneficial effects:

[0011] 1. By combining the pull rope displacement sensor with the mesh net, when the belt of the conveyor belt tears, as long as a small amount of material falls onto the mesh net, the mesh net can pull the pull rope to give a signal to the pull rope displacement sensor, thereby stopping the conveyor belt, increasing both speed and accuracy. Attached Figure Description

[0012] Figure 1 This is a perspective view of an embodiment of the present utility model;

[0013] Figure 2 This is an exploded view of the bracket in an embodiment of the present invention;

[0014] In the diagram, 1 is the frame; 2 is the net; 3 is the bracket; 4 is the fixed shaft; 5 is the pull rope displacement sensor; 6 is the pull rope; 7 is the sleeve; 8 is the clamping block; 9 is the counterweight ring; 10 is the triangular steel; and 11 is the belt roller support frame. Detailed Implementation

[0015] To make the above-mentioned objects, features, and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a full understanding of this utility model. However, this utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this utility model. Therefore, this utility model is not limited to the specific embodiments disclosed below.

[0016] Please see Figures 1 to 2 This application provides a belt conveyor tear detection device, including a frame 1 and a mesh 2. The mesh 2 is a common mesh with a finer mesh. Supports 3 are fixedly installed at the four corners of the frame 1. Fixed shafts 4 are rotatably installed on the support 3. Pull rope displacement sensors 5 are installed at the four corners of the frame 1. Pull rope displacement sensors 5 are connected to pull ropes 6 at their output ends. The ropes at the output ends of the pull rope displacement sensors 5 can be fixedly connected to the pull ropes 6. The pull ropes 6 are wound around the mesh 2 after passing through the adjacent fixed shafts 4. The mesh 2 can be located below the easily tearable end of the belt conveyor. The pull rope displacement sensors 5 can be customized to have high precision. The pull rope displacement sensors 5 are connected to an external signal processor.

[0017] In this embodiment, the frame 1 can be installed below the easily tearable end or the output end of the belt conveyor. When the belt tears and the transported material spills, the material falls onto the net 2, causing the net 2, which is pulled up by the four corner pull ropes 6 on the frame 1, to fall. The pull ropes 6 are pulled and moved, causing the rope inside the pull rope displacement sensor 5 to be pulled out. This allows the pull rope displacement sensor 5 to transmit a signal to the outside in a timely manner, stopping the belt conveyor. When the pull rope 6 is pulled, the rotating fixed shaft 4 on the bracket 3 acts as a guide, allowing the rope inside the pull rope displacement sensor 5 to be pulled upwards. The purpose of additionally connecting the pull rope 6 to the rope at the output end of the pull rope displacement sensor 5 is to prevent the elastic recovery components, such as the spring, inside the pull rope displacement sensor 5 from failing after the rope has been pulled out for a long time.

[0018] In some embodiments, to further improve the stability of the rope inside the rope displacement sensor 5 when stretched, a sleeve 7 is fixedly installed on the bracket 3. The sleeve 7 is located below the fixed shaft 4, and a locking block 8 is wound around the pull rope 6, which slides and engages inside the sleeve 7. When the rope inside the rope displacement sensor 5 is pulled out, the pull rope 6 will drive the locking block 8 to slide inside the sleeve 7, so that the rope inside the rope displacement sensor 5 can only extend vertically upward; at the same time, the locking block 8 also acts as a counterweight, so that the pull rope 6 will not fall prematurely due to the weight of the net 2.

[0019] In some embodiments, to further counterweight the net 2, a counterweight ring 9 is wound around the pull rope 6. A short rod is installed at the center of the counterweight ring 9, and the pull rope 6 is wound around the short rod, so that the pull rope 6 can extend from the center of the counterweight ring 9 and drive the counterweight ring 9 to rise together when rising, while the counterweight ring 9 can also maintain a balanced state.

[0020] In some embodiments, to reduce friction between the locking block 8 and the sleeve 7, the locking block 8 is preferably spherical.

[0021] In some embodiments, to prevent the counterweight ring 9 from getting stuck inside the sleeve 7, the outer diameter of the counterweight ring 9 is set to be larger than the outer diameter of the sleeve 7.

[0022] In some embodiments, to facilitate the installation of the frame 1 under the belt conveyor, triangular steel 10 is fixedly installed on both sides of the frame 1, and a belt roller support frame 11 is fixedly installed on the triangular steel 10. The triangular steel 10 provides better support, and the belt roller support frame 11 can be used to install the driven rollers that provide support under the belt conveyor.

[0023] The fixed connection and rotating installation in the above embodiments can all be achieved by welding, screw fasteners and other forms in the prior art, and the rotating installation can be achieved by bearings, circular rotating blocks and circular grooves. All of the above components are standard parts, and those that are not standard parts can also be specially customized, so the inventor will not elaborate further.

[0024] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0025] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

Claims

1. A belt conveyor tear detection device, comprising a frame (1) and a mesh (2), characterized in that, The frame (1) is equipped with brackets (3) at each of its four corners. Fixed shafts (4) are rotatably mounted on the brackets (3). Pull rope displacement sensors (5) are installed at each of the four corners of the frame (1). Pull ropes (6) are connected to the output end of the pull rope displacement sensors (5). The pull ropes (6) are wound around the net (2) after passing through the adjacent fixed shafts (4). The net (2) is located below the easily torn end of the belt conveyor.

2. The belt conveyor tear detection device according to claim 1, characterized in that, A sleeve (7) is installed on the bracket (3). The sleeve (7) is located below the fixed shaft (4). A locking block (8) is wound on the pull rope (6). The locking block (8) is slidably engaged in the sleeve (7).

3. The belt conveyor tear detection device according to claim 1, characterized in that, A counterweight ring (9) is wound around the pull rope (6).

4. The belt conveyor tear detection device according to claim 2, characterized in that, The card block (8) is preferably spherical.

5. The belt conveyor tear detection device according to claim 3, characterized in that, The outer diameter of the counterweight ring (9) is greater than the outer diameter of the sleeve (7).

6. The belt conveyor tear detection device according to claim 1, characterized in that, Triangular steel (10) is installed on both sides of the frame (1), and belt roller support frame (11) is installed on the triangular steel (10).

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