A belt tear detection device

Abstract

The utility model provides a kind of belt tearing detection device, it is related to belt tearing detection field, the scheme used is: including two oppositely arranged mounting rods, the lower end of mounting rod can be connected with the support chassis of conveyor, further include: induction rod, induction rod is horizontally arranged, the both ends of induction rod are rotatably arranged on corresponding mounting rod, foreign matter that pierces belt can stir induction rod rotation;Induction ring, the end of induction ring is connected with induction rod, induction ring is horizontally arranged, induction ring can be swung with the end of induction rod as center under the driving of induction rod;Sensor one, sensor one uses universal light touch type limit switch, the induction proton of universal light touch type limit switch is inserted into induction ring.The utility model can sensitively find the phenomenon that foreign matter pierces belt, and reliability is high.

Description

Technical Field

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

[0002] In heavy industries such as mining, ports, power, and metallurgy, belt conveyors serve as core equipment for material transportation, undertaking the task of conveying large quantities of bulk materials. Belt tears are usually caused by factors such as foreign object obstruction, material accumulation, and equipment aging. Once a tear occurs, it not only renders the entire belt unusable but may also trigger a chain of accidents, seriously affecting production safety and efficiency.

[0003] In the prior art, Chinese utility model patent with authorization announcement number CN219884921U provides a belt tear alarm. Its main technical solution includes a base frame, a transmission mechanism, a conveyor belt, a guide frame, and a limit rope assembly. The device senses abnormal materials through the limit rope assembly. When the pull rope body is subjected to an abnormal object, it drives the deflection sensing mechanism to trigger the angle sensor, thereby stopping the conveyor belt from running.

[0004] However, when using the above technical solutions, the belt conveyor system is in an environment of high-frequency vibration, dust pollution and material impact for a long time. The pull rope body is very easy to break after being impacted and rubbed by foreign objects, resulting in low reliability. At the same time, in environments with a lot of dust, the deflection sensing mechanism may jam, and the pull rope body may be torn off under the action of foreign objects, which greatly reduces the reliability of the operation. Utility Model Content

[0005] To address the technical problem of low reliability in existing belt tear detection devices, this invention provides a belt tear detection device that can quickly and sensitively detect the phenomenon of foreign objects piercing the belt, with high reliability.

[0006] The technical solution adopted by this utility model to solve the above-mentioned technical problems is as follows: a belt tear detection device, including two oppositely arranged mounting rods, the lower ends of which can be connected to the support base of the conveyor, and further including: a sensing rod, the sensing rod being horizontally arranged, the two ends of which are respectively rotatably mounted on the corresponding mounting rods, and a foreign object piercing the belt can cause the sensing rod to rotate; a sensing ring, the sensing ring being connected to the end of the sensing rod, the sensing ring being horizontally arranged, and the sensing ring being able to swing around the end of the sensing rod as the center under the drive of the sensing rod; and a sensor one, the sensor one being mounted on the mounting rod, the sensor one being a universal tactile limit switch, the sensing proton of the universal tactile limit switch extending into the sensing ring.

[0007] This invention replaces the flexible connection of the rope body and the process of driving the deflection sensing mechanism to rotate in the prior art by using the coordinated operation of the sensing rod, sensing ring and sensor one. The sensing rod has high tensile strength, which improves the reliability of the tear detection device. At the same time, when a foreign object punctures, the sensing rod rotates and directly triggers sensor one. Compared with the prior art where the deflection sensing mechanism is pulled by a rope, the response speed is greatly improved.

[0008] Furthermore, the sensing rod includes rotating parts at both ends, the rotating parts are horizontally arranged, the rotating parts are rotatably connected to the corresponding mounting rods, the rotating parts extend out of the mounting rods and are connected to the sensing rings, and a sensing part is arranged between the two rotating parts. The sensing part has a U-shaped structure and can be located under the belt.

[0009] Furthermore, the sensing ring and the rotating part are connected by a connecting rod.

[0010] This invention connects the sensing ring and the sensing rod by setting a connecting rod, which can convert the small angular displacement of the sensing rod into a larger swing amplitude of the sensing ring, making the sensing more sensitive.

[0011] Furthermore, the sensing part includes two segments, a second segment is disposed between the two segments, the second segment is horizontally disposed, the height of the second segment is lower than that of the rotating part, and the two ends of the first segment are respectively connected to the rotating part and the second segment.

[0012] By dividing the sensing part into two segments, this invention can better match the U-shaped shape of the belt, ensuring that the distance between the sensing part and the belt is not too large, thus improving the ability to detect small foreign objects.

[0013] Furthermore, the rotating part is connected to the mounting rod via a maintenance-free bearing.

[0014] Furthermore, the cross-section of the mounting rod is U-shaped.

[0015] Furthermore, the sensing rod is made of spring steel.

[0016] Furthermore, a second sensor is also provided on the mounting rod. The second sensor is located on the upper part of the sensing rod and is used to detect the belt.

[0017] This invention, by setting up a second sensor, can promptly detect when the belt is torn and folds towards the middle, forming a double safety net with the first sensor and improving the detection reliability of the device.

[0018] As can be seen from the above technical solutions, this utility model has the following advantages: This invention provides a belt tear detection device. By coordinating a sensing rod, a sensing ring, and a sensor, it replaces the flexible connection of the pull rope and the process of rotating the deflection sensing mechanism in existing technologies. The sensing rod has high tensile strength, improving the reliability of the tear detection device. Furthermore, when a foreign object punctures the belt, the rotation of the sensing rod directly triggers the sensor, significantly improving the response speed compared to the rope-driven deflection sensing mechanism in existing technologies. The connection between the sensing ring and the sensing rod via a connecting rod converts the small angular displacement of the sensing rod into a larger swing amplitude of the sensing ring, resulting in more sensitive sensing. Dividing the sensing part into two segments better matches the U-shaped shape of the belt, ensuring that the distance between the sensing part and the belt is not excessive, thus improving the ability to detect small foreign objects. The sensor can promptly detect when the belt folds towards the center after tearing, forming a double safety measure with the sensor, further enhancing the detection reliability of the device. Attached Figure Description

[0019] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 1 .

[0021] Figure 2 This is a structural diagram illustrating a specific embodiment of the present invention. Figure 2 .

[0022] In the diagram, 1 is the sensing rod; 101 is the rotating part; 102 is the first segment; 103 is the second segment; 104 is the sensing part; 2 is the second sensor; 3 is the mounting rod; 4 is the connecting rod; 5 is the sensing ring; 6 is the proton; and 7 is the first sensor. Detailed Implementation

[0023] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0024] like Figure 1 and Figure 2As shown in the figure, this specific embodiment provides a belt tear detection device, including two opposing mounting rods 3. The lower end of the mounting rod 3 can be connected to the support base of the conveyor. It also includes a sensing rod 1, which is horizontally arranged. The two ends of the sensing rod 1 are respectively rotatably mounted on the corresponding mounting rod 3. A foreign object piercing the belt can cause the sensing rod 1 to rotate. A sensing ring 5 is connected to the end of the sensing rod 1. The sensing ring 5 is horizontally arranged and can swing around the end of the sensing rod 1 as the center under the drive of the sensing rod 1. A sensor 7 is installed on the outer side of the mounting rod 3, i.e. the side away from the belt, through a mounting base. The sensor 7 is a universal tactile limit switch. The sensing proton 6 of the universal tactile limit switch extends into the sensing ring 5. When the foreign object drives the sensing rod 1 to rotate, it in turn drives the sensing ring 5 to swing. The distance between the sensing ring 5 and the proton 6 of the sensor 7 changes, and the sensor 7 emits a corresponding electrical signal.

[0025] This specific embodiment replaces the process of flexible connection of the rope body and rotation of the deflection sensing mechanism in the prior art by the coordinated cooperation of the sensing rod 1, sensing ring 5 and sensor 7. The sensing rod 1 has high tensile strength, which improves the working reliability of the tear detection device. At the same time, when a foreign object pierces, the rotation of the sensing rod 1 directly triggers the sensor 7. Compared with the prior art where the deflection sensing mechanism is rotated by a rope, the response speed is greatly improved.

[0026] like Figure 1 As shown, in this specific embodiment, the sensing rod 1 includes rotating parts 101 at both ends. The rotating parts 101 are horizontally arranged and are rotatably connected to the corresponding mounting rod 3 via bearings. The bearings are maintenance-free bearings. After extending out of the mounting rod 3, the rotating parts 101 are connected to the sensing ring 5. A sensing part 104 is arranged between the two rotating parts 101. The sensing part 104 has a U-shaped structure and can be located under the belt. Furthermore, the sensing ring 5 is connected to the rotating parts 101 via a connecting rod 4. After setting the connecting rod 4, the distance between the sensing ring 5 and the rotating parts 101 can be increased, thereby amplifying the rotating parts 101. The angular displacement of the sensing rod 1 can be converted into a larger swing amplitude of the sensing ring 5, making the sensing more sensitive. In order to enable the sensing rod 1 to fully sense the inserted foreign object, in this specific embodiment, the sensing part 104 includes two segments 102 at both ends, and a segment 103 is provided between the two segments 102. The segment 103 is horizontally arranged, and the height of the segment 103 is lower than that of the rotating part 101. The two ends of the segment 102 are respectively connected to the rotating part 101 and the segment 103. After this arrangement, the segment 102 can be tilted, so that the sensing part 104 fits the U-shaped shape of the belt more closely and can more fully sense the inserted foreign object.

[0027] like Figure 1 and Figure 2 As shown in this specific embodiment, the cross-section of the mounting rod 3 is U-shaped, which strengthens the structure of the mounting rod 3 and prevents deformation.

[0028] To further enhance the strength of the sensing rod 1, the sensing rod 1 is made of spring steel. With this design, the sensing rod 1 has a certain degree of elasticity and can undergo a certain degree of elastic deformation when subjected to a large-scale drive by foreign objects or torsional action, thus preventing breakage after long-term use. In this specific embodiment, the sensing rod 1 is a bent integral molding structure.

[0029] like Figure 1 As shown, to further improve the reliability of the device, in this specific embodiment, a second sensor 2 is also provided on the mounting rod 3. The second sensor 2 is located above the first sensor 7 and on the side of the mounting rod 3 near the belt. The second sensor 2 is located on the upper part of the sensing rod 1. The second sensor 2 is used to detect the belt. The second sensor 2 adopts a magnetic proximity switch and can sense the steel wire rope core in the belt. When the belt tears and folds towards the middle, the edge of the belt moves away from the second sensor 2 and the steel wire rope core cannot be detected. The second sensor 2 then emits a corresponding electrical signal.

[0030] In this specific embodiment, both ends of the sensing rod 1 are provided with a connecting rod 4, a sensing ring 5, and a sensor 7.

[0031] The working process of this device is as follows: When the conveyor belt is running normally, the U-shaped sensing part 104 maintains a preset distance from the bottom surface of the belt, and sensor 7 is in standby mode. Once a foreign object punctures the belt, it immediately pushes the sensing part 104 to generate displacement, causing the sensing rod 1 to rotate. The motion is amplified and transmitted to the sensing ring 5 through the linkage 4 mechanism, triggering sensor 7 to send an electrical signal. At the same time, the second sensor monitors the surface condition of the belt. If a belt fold caused by tearing is detected, sensor 2 is triggered to send an electrical signal to ensure timely shutdown and prevent the accident from escalating.

[0032] As can be seen from the above specific embodiments, this utility model has the following beneficial effects: 1. By coordinating the sensing rod 1, sensing ring 5 and sensor 7, the process of flexibly connecting the rope body and driving the deflection sensing mechanism to rotate in the prior art is replaced. The sensing rod 1 has high tensile strength, which improves the working reliability of the tear detection device. At the same time, when a foreign object pierces, the sensing rod 1 rotates and directly triggers the sensor 7. Compared with the prior art where the deflection sensing mechanism is pulled by a rope, the response speed is greatly improved. 2. By setting the connecting rod 4 to connect the sensing ring 5 and the sensing rod 1, the small angular displacement of the sensing rod 1 can be converted into a larger swing amplitude of the sensing ring 5, making the sensing more sensitive; 3. By dividing the sensing part 104 into segment one 102 and segment two 103, it can better match the U-shaped shape of the belt, so that the distance between the sensing part 104 and the belt is not too large, thus improving the sensing ability of small foreign objects. 4. By setting sensor 2, it is possible to detect in time the situation where the belt is torn and folds in the middle, forming a double protection with sensor 7, thereby improving the detection reliability of this device.

[0033] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A belt tear detection device, comprising two opposing mounting rods (3), the lower ends of which can be connected to the support base of a conveyor, characterized in that, Also includes: The sensing rod (1) is horizontally arranged, and the two ends of the sensing rod (1) are respectively rotatably arranged on the corresponding mounting rod (3). Foreign objects that pierce the belt can cause the sensing rod (1) to rotate. The sensing ring (5) is connected to the end of the sensing rod (1). The sensing ring (5) is set horizontally and can swing around the end of the sensing rod (1) under the drive of the sensing rod (1). Sensor 1 (7) is mounted on the mounting rod (3). Sensor 1 (7) is a universal tactile limit switch. The sensing proton (6) of the universal tactile limit switch extends into the sensing ring (5).

2. The belt tear detection device as described in claim 1, characterized in that, The sensing rod (1) includes rotating parts (101) at both ends. The rotating parts (101) are horizontally arranged and rotatably connected to the corresponding mounting rod (3). The rotating parts (101) extend out of the mounting rod (3) and are connected to the sensing ring (5). A sensing part (104) is provided between the two rotating parts (101). The sensing part (104) has a U-shaped structure and can be located under the belt.

3. The belt tear detection device as described in claim 2, characterized in that, The sensing ring (5) is connected to the rotating part (101) via a connecting rod (4).

4. The belt tear detection device as described in claim 3, characterized in that, The sensing part (104) includes two segments (102) at both ends, and a segment (103) is provided between the two segments (102). The segment (103) is horizontally arranged and its height is lower than that of the rotating part (101). The two ends of the segment (102) are respectively connected to the rotating part (101) and the segment (103).

5. The belt tear detection device as described in claim 4, characterized in that, The rotating part (101) is connected to the mounting rod (3) via a maintenance-free bearing.

6. The belt tear detection device according to any one of claims 1-5, characterized in that, The cross-section of the mounting rod (3) is U-shaped.

7. The belt tear detection device as described in claim 6, characterized in that, The sensing rod (1) is made of spring steel.

8. The belt tear detection device as described in claim 6, characterized in that, The mounting rod (3) is also equipped with a sensor two (2), which is located on the upper part of the sensing rod (1) and is used to detect the belt.

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