Rip-resistant conveyor belt

CN224767724UActive Publication Date: 2026-09-18WENSHAN CONCH CEMENT CO LTD
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Patent Information

Application Number
CN202522141697.0
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-10-10
Publication Date
2026-09-18
Estimated Expiration
2035-10-10

AI Technical Summary

Technical Problem

[0004]本实用新型的目的就在于解决无法及时并有效的检测皮带是否破损,是否有超规格的硬块掉落在返回皮带内的问题,而提出一种防撕裂的输送带

Benefits of technology

[0014] The beneficial effects of this utility model are as follows: The device is installed at the return belt B below, so that when a large particle falls to the return belt B, once the trigger component captures the material, the limit switch can instantly cut off the motor power, stop the belt, minimize the belt tearing range, and reduce maintenance costs.

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Abstract

The utility model discloses a kind of anti-tearing conveyer belts, comprising: first frame body, between multiple rollers in the belt conveyor is set;Limit switch, for cutting off the driving power supply of belt conveyor;Trigger assembly, rotationally connected on the first frame body along the width direction of the belt conveyor, the limit switch is set at the trigger assembly side, the trigger assembly is used to trigger the limit switch after object collision. Install device at the lower return belt B, so when the object of large particle size drops to return belt B, limit switch can cut off motor power supply instantly, make the belt shutdown, minimize the range of belt tearing, reduce maintenance cost.
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Description

Technical Field

[0001] This utility model relates to the field of conveying technology, specifically to a tear-resistant conveyor belt. Background Technology

[0002] Belt conveyors, as core equipment for continuous material transport in mining, ports, chemical, and building materials industries, are widely used for long-distance transport of bulk materials (such as ores, coal, and sand) and packaged materials due to their advantages of large conveying capacity, high efficiency, and adaptability to complex working conditions. However, in actual operation, the risk of conveyor belt tearing remains a key issue restricting the stable operation of the equipment. On the one hand, conveyor belts are prone to localized damage, loose joints, or edge wear under long-term heavy loads, friction, and material impact. If these problems are not detected in time, such as... Figure 5 As shown, materials transported by the upper conveyor belt (point A), especially ores with sharp edges, metal scraps, or oversized hard blocks, may fall onto the lower return belt (point B) due to belt damage. These fallen materials can easily get stuck between the lower belt and the rollers and idlers. As the belt continues to run, the material will exert a "cutting" or "compressing" force on the belt, causing local damage to rapidly expand into overall tearing. In severe cases, it may even cause the belt to break completely, directly interrupting the production process.

[0003] In actual production, some manufacturers use infrared and pressure sensors to prevent tearing. However, due to interference from the working environment (such as dust blocking infrared signals and vibration causing false pressure triggering), these devices suffer from low sensitivity and high false detection rate, making it impossible to achieve real-time and reliable early warning of tearing risks. Utility Model Content

[0004] The purpose of this invention is to solve the problem of not being able to detect whether the conveyor belt is damaged in a timely and effective manner, or whether any oversized hard blocks have fallen into the return belt, and to propose a tear-resistant conveyor belt.

[0005] The objective of this utility model can be achieved through the following technical solutions: A tear-resistant conveyor belt includes a tear-resistant device to prevent tearing of the conveyor belt, the tear-resistant device comprising: The first frame is set between multiple rollers inside the belt conveyor; Limit switches; A triggering component is rotatably connected to the first frame along the width direction of the belt conveyor. The triggering component is used to activate the limit switch after contacting an obstacle.

[0006] As a further embodiment of this utility model: the triggering component includes a shaft that rotates on the first frame, and a trigger plate disposed on the shaft body and rotatable with the shaft, the trigger plate being used to touch an object and trigger a limit switch.

[0007] As a further embodiment of this utility model: the triggering component includes a shaft and a trigger plate. The shaft rotates on the first frame, and the trigger plate is disposed on the shaft body. The trigger plate can be rotated through the shaft. The trigger plate is used to touch the object. The shaft body is also provided with a trigger rod for triggering the limit switch.

[0008] As a further embodiment of this utility model: the trigger plate extends vertically downward and bends in the direction of the conveyor belt to form a bent portion.

[0009] As a further embodiment of this utility model, the bending angle of the bending portion is 20° to 50°.

[0010] As a further embodiment of this invention, the length of the trigger plate is the same as the width of the belt conveyor.

[0011] As a further embodiment of this utility model: the number of trigger plates is multiple, and the multiple trigger plates are arranged in a straight line along the length direction of the axis.

[0012] As a further embodiment of this utility model, the bottom of the trigger plate is also provided with a detachable contact element, which is made of rubber.

[0013] As a further embodiment of this utility model: a limiting plate is also provided on the first frame, and an opening is provided in the limiting plate near the trigger rod. The opening in the limiting plate is used to limit the rotation angle of the trigger rod.

[0014] The beneficial effects of this utility model are as follows: The device is installed at the return belt B below, so that when a large particle falls to the return belt B, once the trigger component captures the material, the limit switch can instantly cut off the motor power, stop the belt, minimize the belt tearing range, and reduce maintenance costs. Attached Figure Description

[0015] The present invention will be further described below with reference to the accompanying drawings.

[0016] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a schematic diagram of the trigger plate and the contact element in this utility model; Figure 3 This is a front structural diagram of the present invention; Figure 4This is a schematic diagram showing the placement of this utility model within a belt conveyor; Figure 5 This is a structural schematic diagram of an existing belt conveyor.

[0017] In the diagram: 1. First frame; 11. Limit plate; 2. Shaft; 3. Trigger plate; 31. Contact element; 4. Trigger rod; 5. Limit switch; 6. Belt conveyor. Detailed Implementation

[0018] 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 scope of protection of the present utility model.

[0019] Example 1, please refer to Figure 1-3 As shown, this utility model is a tear-resistant conveyor belt, including a first frame 1 and a limit switch 5. The first frame 1 is set between two rollers in the belt conveyor 6. When the limit switch 5 is opened, it will cut off the drive power of the belt conveyor (6) and make the belt conveyor 6 stop working.

[0020] The limit switch 5 is specifically a travel switch.

[0021] A triggering component is rotatably connected to the first frame 1 along the width direction of the belt conveyor 6. The length direction of the belt conveyor 6 refers to the conveying direction axis of the belt in the belt conveyor 6, which is the X-axis; while the width direction of the belt conveyor 6 refers to the direction of the belt width of the belt conveyor 6, which is the Y-axis.

[0022] Limit switch 5 is located next to triggering component, which is a structural object. One contact surface of this structural object is located above the belt of conveyor 6, at a distance of about 3-5 cm. This contact surface is actually trigger plate 3 or contact element 31. The other contact surface of this structure is located next to the trigger point of limit switch 5. This contact surface is trigger rod 4. When the contact surface above the belt contacts an object, the structural object will rotate, causing the other contact surface of the structural object to hit or touch the trigger point of limit switch 5. Limit switch 5 is activated, causing conveyor 6 to stop working. Therefore, the triggering component is used to trigger limit switch 5 after contact with an object.

[0023] Furthermore, the trigger assembly includes a shaft 2 and a trigger plate 3. The shaft 2 rotates on the first frame 1, and the trigger plate 3 can be fixed to the shaft body of the shaft 2 by means of detachable installation or welding. The length direction of the trigger plate 3 is matched and fixed along the length direction of the shaft 2.

[0024] The trigger plate 3 can be rotated via the shaft 2. Since the trigger plate 3 is fixed to the shaft 2, when the shaft 2 rotates around its axis, the rotation axis of the trigger plate 3 is the same as that of the shaft 2.

[0025] The trigger plate 3 is used to touch an object and trigger the limit switch 5. The trigger plate 3 is rectangular in shape.

[0026] Furthermore, the trigger assembly includes a shaft 2 and a trigger plate 3. The shaft 2 rotates on the first frame 1, and the trigger plate 3 is fixed to the shaft body of the shaft 2. Both the trigger plate 3 and the shaft 2 can be made of metal, so the trigger plate 3 can be welded to the shaft 2.

[0027] The trigger plate 3 can rotate with axis 2 as the center, but at the same time the limiting plate 11 restricts the rotation angle of the trigger plate 3, so that the rotation angle of the trigger plate 3 is less than 180°.

[0028] The trigger plate 3 is used to contact an object, which refers to an object that has fallen onto belt B on the belt conveyor 6. The shaft 2 is also equipped with a trigger rod 4 for triggering the limit switch 5. The shaft 2 is placed horizontally, while the trigger rod 4 and trigger plate 3 are set vertically. The trigger rod 4 is fixed above the shaft 2, while the trigger plate 3 is fixed below the shaft 2.

[0029] Furthermore, the trigger plate 3 extends vertically downward and bends to one side to form a bent portion. In this application, the design significance of the bent portion is that when the trigger plate 3 touches an object, the inclined bent portion has better passage. However, it should be noted that when installing the contact plate 3, the bending direction of the bent portion should not be opposite to the belt transmission direction in the belt conveyor 6.

[0030] Furthermore, the bending angle of the bent portion is 20° to 50°, with 30° being the optimal bending angle.

[0031] Furthermore, the length of the trigger plate 3 is the same as the width of the belt conveyor 6. Specifically, the width of the trigger plate 3 is the same as the width of the belt in the belt conveyor 6, so there is no dead angle problem.

[0032] like Figure 4 As shown, Figure 4 The image shows the placement of the device of this application in the belt conveyor 6.

[0033] One or more of the devices described herein may be placed directly on the two rollers of the belt conveyor 6, but the optimal solution is to place two at one end and one at the other.

[0034] The two rollers in the belt conveyor 6 are the drive wheel and the drive wheel, respectively. The drive wheel drives the belt to rotate, and the drive wheel rotates in coordination. The belt is wrapped around the two rollers.

[0035] Furthermore, a contact element 31 is provided at the bottom of the trigger plate 3. The contact element 31 can be detachably installed on the trigger plate 3 by means of bolts or other means. The contact element 31 can be made of a flexible material, which enhances the passage of the object when it comes into contact with it. Specifically, the flexible material is rubber. The thickness of this rubber needs to be greater than 1 cm, so that the trigger plate 3 can rotate around the axis 2 after the rubber comes into contact with the object.

[0036] In another embodiment, there are multiple trigger plates 3, which are arranged in a straight line along the length of the shaft 2. Here, the operator needs to calculate the spacing between the multiple trigger plates 3 as needed and install them to avoid errors or omissions. For example, the trigger plates 3 can be spaced 3 to 5 centimeters apart.

[0037] exist Figure 2 The image shows the bending direction of the bend in the trigger plate 3 and the running direction of the belt in the belt conveyor 6.

[0038] It should also be noted that the distance between the trigger plate 3 or the contact element 31 and the belt of the belt conveyor 6 can be set by the operator according to the actual situation. Just pay attention to the installation height when installing the first frame 1. However, in this application, the distance between the trigger plate 3 or the contact element 31 and the belt of the belt conveyor 6 is 3cm.

[0039] The foregoing has provided a detailed description of one embodiment of the present invention, but the description is merely a preferred embodiment and should not be construed as limiting the scope of the present invention. All equivalent variations and improvements made within the scope of the claims of the present invention should still fall within the scope of the claims of the present invention.

Claims

1. A tear-resistant conveyor belt comprising a tear-preventing device for preventing the conveyor belt from tearing, characterized in that, Tear-resistant devices include: The first frame (1) is set between multiple rollers inside the belt conveyor (6); Limit switch (5); A triggering component is rotatably connected to the first frame (1) along the width direction of the belt conveyor (6). The triggering component is used to activate the limit switch (5) after contacting an obstacle. The triggering assembly includes a shaft (2) and a trigger plate (3). The shaft (2) rotates on the first frame (1). The trigger plate (3) is located on the shaft of the shaft (2). The trigger plate (3) can be rotated through the shaft (2). The trigger plate (3) is used to touch the object. The shaft (2) is also provided with a trigger rod (4) for triggering the limit switch (5).

2. A tear resistant conveyor belt according to claim 1, characterized in that The trigger plate (3) extends vertically downward and bends in the direction of the conveyor belt to form a bend.

3. A tear resistant conveyor belt according to claim 2, characterized in that The bending angle of the bent portion is 20° to 50°.

4. A rip-resistant conveyor belt according to claim 2, wherein, The length of the trigger plate (3) is the same as the width of the belt conveyor (6).

5. A rip-resistant conveyor belt according to claim 2, wherein, The number of trigger plates (3) is multiple, and the multiple trigger plates (3) are arranged in a straight line along the length direction of the axis (2).

6. A tear-resistant conveyor belt according to claim 2, characterized in that, The trigger plate (3) is also provided with a detachable contact (31) at the bottom, and the contact (31) is made of rubber.

7. A rip-resistant conveyor belt according to claim 1, wherein, The first frame (1) is also provided with a limiting plate (11). An opening is provided in the limiting plate (11) near the trigger rod (4). The opening in the limiting plate (11) is used to limit the rotation angle of the trigger rod (4).