Longitudinal tearing detection device for conveying belt

Abstract

The invention relates to the technical field of conveying belts, and discloses a conveying belt longitudinal tearing detection device which comprises a belt conveyor rack, a belt lower belt face is arranged at the bottom of the belt conveyor rack, a longitudinal tearing detection mechanism is arranged at the top of the belt conveyor rack, and a belt upper belt face is arranged at the top of the longitudinal tearing detection mechanism. An adjusting mechanism is arranged at the top of the belt conveyor rack, a buffer bed is arranged at the bottom of the adjusting mechanism, and a reinforcing plate is fixedly connected to the bottom of the buffer bed. Compared with a tray type tearing sensor, the longitudinal tearing detection device for the conveying belt has the advantages that the detection mechanism can be triggered at the moment when the belt is punctured by foreign matters, the shutdown of the conveying belt can be quickly and effectively controlled, the time from puncturing of the belt to shutdown is greatly shortened, the tearing length of the belt can be effectively shortened, and accident loss is reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of conveyor belts, and particularly to a longitudinal tear detection device for a conveyor belt. Background Art

[0002] The main transportation equipment in coal mines is belt conveyors. Since raw coal contains sharp objects, once these objects fall onto the belt, they may pierce the belt and cause belt damage. In particular, sharp iron objects such as bolts, drill rods, and angle irons are very likely to pierce the belt, causing longitudinal tearing of the belt, resulting in serious belt damage and mechanical accidents that affect production due to the shutdown of the belt conveyor, posing a serious impact on safe production and causing significant economic losses to coal mines. Therefore, it is of extremely important significance for ensuring safe production to monitor in real time, promptly detect that the raw coal transportation belt has been pierced, immediately stop the machine, and minimize the length of the belt tear as much as possible so that it can be quickly repaired and production can be resumed in a timely manner.

[0003] There are two existing belt tear protection sensors:

[0004] One is a tray-type tear sensor. Its working principle is that after the belt is torn, the coal on the belt leaks from the tear opening of the belt and falls onto the tray of the sensor, triggering the sensor to provide a shutdown signal to the belt conveyor controller, thus playing a protective role. The disadvantage of this tear sensor is that it is not sensitive. Only after a large tear in the belt can coal leak down and be detected. By this time, the accident has already been very serious, and the time for handling the fault and resuming production is too long, having too great an impact on production.

[0005] The other is a belt tear monitoring device using vision recognition technology. A plurality of vision recognition belt tear devices are installed below the upper belt to monitor whether the belt has been pierced by sharp objects. Due to the large amount of coal dust at the site of the raw coal belt conveyor and the belt conveyor sprinkler dust suppression system, the vision cameras are seriously polluted at the site, causing the device to be unable to be used normally, and it has a high cost and a high failure rate.

[0006] The reason for belt tearing is that when raw coal enters the belt conveyor through a chute, the sharp objects entrained in the coal will pierce the belt. As the belt moves forward, these objects that pierce the belt are stuck at the idler of the belt conveyor. At this time, the sharp objects will exert a tearing effect on the belt moving forward. If the machine is not stopped in time, it will cause a major accident of production suspension. Summary of the Invention

[0007] The purpose of the present invention is to provide a longitudinal tear detection device for a conveyor belt to solve the problems raised in the above background art.

[0008] To achieve the above object, the present invention provides the following technical solution: A longitudinal tear detection device for a conveyor belt, including a belt conveyor frame, a lower belt surface is provided at the bottom of the belt conveyor frame, a longitudinal tear detection mechanism is provided at the top of the belt conveyor frame, an upper belt surface is provided at the top of the longitudinal tear detection mechanism, an adjustment mechanism is provided at the top of the belt conveyor frame, a buffer bed is provided at the bottom of the adjustment mechanism, and a reinforcing plate is fixedly connected to the bottom of the buffer bed;

[0009] The longitudinal tear detection mechanism includes a U-shaped clamp, the U-shaped clamp is fixedly connected to the surface of the belt conveyor frame by a set screw, a fixed support is fixedly connected to the top of the U-shaped clamp, a support shaft is fixedly connected between the two fixed supports, a proximity switch mounting bracket is fixedly connected to the middle of the surface of the support shaft, an electromagnetic proximity switch is fixedly connected to the bottom of the proximity switch mounting bracket, a swing frame is provided on one side of the proximity switch mounting bracket, a balance weight is fixedly connected to the bottom of the swing frame, and the balance weight is designed in a cylindrical shape.

[0010] Preferably, a detection rod is fixedly connected to the top of the swing frame, the detection rod is arranged on the top of the support shaft, and by arranging the detection rod, the tearing degree of the belt can be detected.

[0011] Preferably, a roller is provided on one side of the detection rod, the roller is fixedly connected to the top of the belt conveyor frame, the number of the rollers and the detection rods is three each, and the three rollers and the detection rods are evenly distributed. The conveyor belt is in an arc shape under the support of the belt conveyor rollers. The patent designs steel bars that can conveniently adjust the arc according to the arc of the on-site belt, and an up-and-down position adjustment mechanism, so that the adjusted steel bars are close to the conveyor belt along the arc of the conveyor belt without touching the belt. When a sharp object pierces the moving conveyor belt, it will touch the steel bars and trigger the sensor.

[0012] Preferably, an anti-slip rubber pad is provided on the inner surface of the U-shaped clamp, and the anti-slip rubber pad is fixedly connected to the U-shaped clamp by strong glue, which is used to enhance the friction between the U-shaped clamp and the belt conveyor frame. By enhancing the friction between the U-shaped clamp and the belt conveyor frame, the loosening of the U-shaped clamp can be prevented.

[0013] Preferably, anti-slip protrusions are provided on the outer surface of the roller, the anti-slip protrusions are spirally distributed on the outer surface of the roller, and the anti-slip protrusions are made of rubber material, which is used to increase the friction between the roller and the upper belt surface of the belt. By increasing the friction between the roller and the upper belt surface of the belt, the phenomenon of belt slipping can be prevented.

[0014] Preferably, the adjusting mechanism includes a feeding chute which is arranged on the top of the upper belt surface of the belt conveyor. Both sides of the surface of the feeding chute are rotatably connected with mounting shafts. A protective sleeve is sleeved on the surface of the mounting shaft. A fixing member is fixedly connected to the surface of the mounting shaft, and the fixing member is fixedly connected to the top of the belt conveyor frame. Through the scientifically designed and precisely installed fixing member system, a stable and lasting supporting force can be formed on the feeding chute at multiple key stress points. These fixing members are usually made of high-strength alloy steel or composite materials, with excellent compressive and shear resistance properties, and can effectively disperse the impact force and gravity load borne by the feeding chute during material transportation. The installation methods of the fixing members include embedded bolts, welded brackets and adjustable support seats, etc. By firmly connecting with the industrial building structure and the foundation platform, the external force received by the chute is evenly transmitted to the foundation structure to avoid local stress concentration.

[0015] Preferably, a fixing plate is fixedly connected to the surface of the fixing member. A support frame is fixedly connected to the side of the fixing plate away from the fixing member. A support rod is rotatably connected inside the support frame. A cylinder is rotatably connected to the surface of the support rod. A connecting shaft is rotatably connected to the top of the cylinder. Mounting frames are rotatably connected to the surface of the connecting shaft, and the mounting frames are fixedly connected to both sides of the feeding chute.

[0016] Preferably, the number of the cylinders is two, and the two cylinders are symmetrically arranged on both sides of the feeding chute. By starting the high-precision cylinders installed on both sides of the equipment, the cylinders adopt a double-acting structure design and have the characteristics of fast response and stable output. When the control system issues a start command, the piston inside the cylinder is quickly driven by compressed air and changes from the contracted state to the stretched state, and the piston rod smoothly extends along the guide shaft.

[0017] Preferably, the feeding chute is designed to be inclined and trapezoidal.

[0018] Preferably, mounting holes are provided at the four corners of the reinforcing plate. The reinforcing plate is fixedly connected to the bottom of the belt conveyor frame through bolts passing through the mounting holes, and a plurality of reinforcing ribs are arranged on the surface of the reinforcing plate. The reinforcing ribs are distributed in a grid shape to improve the strength and rigidity of the reinforcing plate.

[0019] Compared with the prior art, the present invention provides a longitudinal tear detection device for a conveyor belt, having the following beneficial effects:

[0020] 1. For this longitudinal tear detection device of the conveyor belt, compared with the tray-type tear sensor, the detection device of the present invention can trigger the detection mechanism instantly when a foreign object pierces the belt, can quickly and effectively control the conveyor belt to stop, greatly shortens the time from the belt being pierced to stopping, can effectively reduce the length of the belt tear, and reduce accident losses.

[0021] 2. Compared with the belt tearing monitoring device using visual recognition technology, the longitudinal tearing detection device of this conveyor belt is not affected by coal dust and the sprinkler dust suppression system, adapts to the harsh working environment of the raw coal belt conveyor, has high stability, low failure rate, and can operate reliably for a long time.

[0022] 3. For the longitudinal tearing detection device of the conveyor belt, after receiving the signal from the detection mechanism, the programmable control box can accurately indicate the fault location and the type of tearing fault, facilitating maintenance personnel to quickly locate and handle the fault, improving the maintenance efficiency, shortening the equipment downtime, and ensuring the continuity of coal mine production.

[0023] 4. In actual production applications of the longitudinal tearing detection device of the conveyor belt, this adjustment system can flexibly adjust the inclination angle of the feed chute according to the characteristics of different materials (such as particle size, humidity, bulk density, etc.) and the requirements of the production process, achieving a wide-range adjustment of the feeding speed from 0.5 to 5 cubic meters per hour, meeting diverse production needs, and ensuring the stability and continuity of the feeding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings:

[0025] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0026] Figure 2 It is a schematic diagram of the longitudinal tearing detection mechanism of the present invention;

[0027] Figure 3 It is a schematic diagram of a partial structure of the longitudinal tearing detection mechanism of the present invention;

[0028] Figure 4 It is a perspective schematic diagram of a partial structure of the longitudinal tearing detection mechanism of the present invention;

[0029] Figure 5 For Figure 4 It is an enlarged schematic diagram of the structure at A in

[0030] Figure 6 It is a schematic diagram of the adjustment mechanism of the present invention;

[0031] Figure 7 For Figure 6 It is an enlarged schematic diagram of the structure at B in

[0032] Figure 8 It is a schematic diagram of the buffer bed structure and the reinforcement plate structure.

[0033] In the figure: 1. Belt conveyor frame; 2. Longitudinal tear detection mechanism; 21. Roller; 22. Support shaft; 23. U-shaped clamp; 24. Balancing counterweight; 25. Proximity switch mounting bracket; 26. Detection rod; 27. Set screw; 28. Swing frame; 29. Electromagnetic proximity switch; 201. Fixed support; 3. Adjusting mechanism; 31. Mounting shaft; 32. Fixed plate; 33. Fixing piece; 34. Support rod; 35. Support frame; 36. Cylinder; 37. Feeding chute; 38. Protective sleeve; 39. Mounting bracket; 301. Connecting shaft; 4. Buffer bed; 5. Reinforcing plate; 6. Upper belt surface of the belt; 7. Lower belt surface of the belt. Specific embodiments

[0034] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0035] The present invention provides a technical solution:

[0036] Embodiment 1:

[0037] Combined with Figures 1 to 2 -5, a longitudinal tear detection device for a conveyor belt, including a belt conveyor frame 1, a lower belt surface 7 of the belt conveyor is provided at the bottom of the belt conveyor frame 1, a longitudinal tear detection mechanism 2 is provided at the top of the belt conveyor frame 1, an upper belt surface 6 of the belt is provided at the top of the longitudinal tear detection mechanism 2, an adjusting mechanism 3 is provided at the top of the belt conveyor frame 1, a buffer bed 4 is provided at the bottom of the adjusting mechanism 3, and a reinforcing plate 5 is fixedly connected to the bottom of the buffer bed 4;

[0038] The longitudinal tear detection mechanism 2 includes a U-shaped clamp 23, the U-shaped clamp 23 is fixedly connected to the surface of the belt conveyor frame 1 through a set screw 27, a fixed support 201 is fixedly connected to the top of the U-shaped clamp 23, a support shaft 22 is fixedly connected between the two fixed supports 201, a proximity switch mounting bracket 25 is fixedly connected to the middle of the surface of the support shaft 22, an electromagnetic proximity switch 29 is fixedly connected to the bottom of the proximity switch mounting bracket 25, a swing frame 28 is provided on one side of the proximity switch mounting bracket 25, a balancing counterweight 24 is fixedly connected to the bottom of the swing frame 28, and the balancing counterweight 24 is designed to be cylindrical.

[0039] Furthermore, a detection rod 26 is fixedly connected to the top of the swing frame 28, the detection rod 26 is arranged at the top of the support shaft 22, and by providing the detection rod 26, the tearing degree of the belt can be detected.

[0040] Furthermore, a roller 21 is provided on one side of the detection rod 26. The roller 21 is fixedly connected to the top of the belt conveyor frame 1. The number of rollers 21 and detection rods 26 provided is three each. The three rollers 21 and the detection rods 26 are evenly distributed. The conveyor belt is in an arc shape under the support of the belt conveyor rollers 21. The patent designs steel bars that can conveniently adjust the arc according to the on-site belt arc, and an up-and-down position adjustment mechanism, so that the adjusted steel bars are close to the conveyor belt along the arc of the conveyor belt without contacting the belt. When a sharp object pierces the moving conveyor belt, it will touch the steel bars and trigger the sensor.

[0041] Furthermore, an anti-slip rubber pad is provided on the inner surface of the U-shaped clamp 23. The anti-slip rubber pad is fixedly connected to the U-shaped clamp 23 through strong glue, which is used to enhance the friction between the U-shaped clamp 23 and the belt conveyor frame 1. By enhancing the friction between the U-shaped clamp 23 and the belt conveyor frame 1, the loosening of the U-shaped clamp can be prevented.

[0042] Furthermore, anti-slip protrusions are provided on the outer surface of the roller 21. The anti-slip protrusions are spirally distributed on the outer surface of the roller 21. The anti-slip protrusions are made of rubber material, which is used to increase the friction between the roller 21 and the upper belt surface 6 of the belt. By increasing the friction between the roller 21 and the upper belt surface 6 of the belt, the phenomenon of belt slipping can be prevented.

[0043] Embodiment 2:

[0044] Refer to Figures 6 - 8 , and on the basis of Embodiment 1, the adjusting mechanism 3 is further obtained to include a feeding chute 37. The feeding chute 37 is arranged on the top of the upper belt surface 6 of the belt. Both sides of the surface of the feeding chute 37 are rotatably connected with mounting shafts 31. A protective sleeve 38 is sleeved on the surface of the mounting shafts 31. A fixing member 33 is fixedly connected to the surface of the mounting shafts 31. The fixing member 33 is fixedly connected to the top of the belt conveyor frame 1. Through the scientifically designed and precisely installed fixing member 33 system, a stable and lasting supporting force can be formed on the feeding chute 37 at multiple key stress points. These fixing members 33 are usually made of high-strength alloy steel or composite materials and have excellent compressive and shear resistance properties. They can effectively disperse the impact force and gravity load borne by the feeding chute 37 during the material conveying process. The installation methods of the fixing members 33 include embedded bolts, welded brackets, and adjustable support seats, etc. By firmly connecting with the industrial building structure and the foundation platform, the external forces received by the chute are evenly transmitted to the foundation structure to avoid local stress concentration.

[0045] Furthermore, a fixing plate 32 is fixedly connected to the surface of the fixing member 33. A support frame 35 is fixedly connected to the side of the fixing plate 32 facing away from the fixing member 33. A support rod 34 is rotatably connected inside the support frame 35. A cylinder 36 is rotatably connected to the surface of the support rod 34. A connecting shaft 301 is rotatably connected to the top of the cylinder 36. Mounting brackets 39 are rotatably connected to the surface of the connecting shaft 301, and the mounting brackets 39 are fixedly connected to both sides of the feeding chute 37.

[0046] Furthermore, two cylinders 36 are provided, and the two cylinders 36 are symmetrically arranged on both sides of the feeding chute 37. By starting the high-precision cylinders 36 installed on both sides of the equipment, the cylinders 36 adopt a double-acting structural design and have the characteristics of rapid response and stable output. When the control system issues a start command, the piston inside the cylinder 36 is quickly driven by compressed air and changes from a contracted state to a stretched state, and the piston rod smoothly extends along the guide shaft.

[0047] Furthermore, the feeding chute 37 is designed to be inclined. The feeding chute 37 is trapezoidal. Mounting holes are provided at the four corners of the reinforcing plate 5. The reinforcing plate 5 is fixedly connected to the bottom of the belt conveyor frame 1 through bolts passing through the mounting holes, and a plurality of reinforcing ribs are provided on the surface of the reinforcing plate 5. The reinforcing ribs are distributed in a grid pattern to improve the strength and rigidity of the reinforcing plate 5.

[0048] Working principle: A belt tearing detection mechanism is provided in front of the idler 21 in the area of the entrance of the raw coal conveying belt. When a foreign object pierces the conveying belt, it will first come into contact with the tearing detection mechanism, and then trigger the sensor of the detection mechanism to send an emergency stop signal to the programmable logic controller. The controller responds quickly, executes the stop operation, and accurately indicates the fault position and the type of tearing fault. The system is sensitive and can quickly and effectively control the stop of the conveyor belt to ensure the rapid realization of the conveyor belt tearing protection function;

[0049] The tearing sensor detection mechanism is installed on the frame of the belt conveyor and is set in front of the five idlers 21 in the area of the entrance of the raw coal conveyor belt (i.e., the area where the belt is often pierced). These tearing sensor detection mechanisms are connected to the programmable control box, and the programmable control box is connected to the centralized control system of the belt conveyor;

[0050] The conveying belt is in an arc shape supported by the idlers 21 of the belt conveyor. Reinforcing bars and upper and lower position adjustment mechanisms are patented, which can conveniently adjust the arc according to the arc of the on-site belt. After adjustment, the reinforcing bars are close to the conveying belt along the arc of the conveying belt without touching the belt. When a sharp object pierces the moving conveying belt, it will touch the reinforcing bars and trigger the sensor;

[0051] When fine adjustment of the material feeding speed is required, the high-precision cylinders 36 installed on both sides of the equipment can be started. The cylinders 36 adopt a double-acting structural design and have the characteristics of fast response and stable output. After the control system issues a start command, the piston inside the cylinder 36 quickly changes from the contracted state to the stretched state under the drive of compressed air, and the piston rod smoothly extends along the guide shaft.

[0052] During the process of the cylinder 36 being in the stretched state, its end is connected to the fixing member 33 through a high-strength connecting member. The fixing member 33 is made of high-strength alloy steel and undergoes precision machining and surface hardening treatment, capable of withstanding huge tensile and shear forces, providing a solid and reliable support for the entire adjustment mechanism 3. Under the stable supporting force formed by the fixing member 33, the head of the feeding chute 37 connected to the front end of the cylinder 36 gradually tilts upward. The main body of the feeding chute 37 is made of wear-resistant stainless steel and its surface is specially polished to effectively reduce the friction coefficient between the material and the chute. As the cylinder 36 continues to stretch, the inclination angle of the feeding chute 37 continuously increases, and the angle sensor monitors it in real time and feeds it back to the control system to achieve precise control of the inclination angle.

[0053] This structural design cleverly utilizes the principles of gravity and inclined plane. As the inclination angle of the feeding chute 37 increases, the component of the gravity of the material along the chute direction significantly increases, enhancing the downward sliding force of the material in the chute, thereby effectively increasing the material feeding speed. In actual production applications, this adjustment system can flexibly adjust the inclination angle of the feeding chute 37 according to the characteristics of different materials (such as particle size, humidity, bulk density, etc.) and the requirements of the production process, achieving a wide-range adjustment of the feeding speed from 0.5 to 5 cubic meters per hour, meeting diverse production needs, and ensuring the stability and continuity of the feeding process.

[0054] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the existence of additional identical elements in the process, method, article or device comprising the said element.

Claims

1. A longitudinal tear detection device for a conveyor belt, comprising a belt conveyor frame (1), characterized in that: The bottom of the belt conveyor frame (1) is provided with a lower belt surface (7), the top of the belt conveyor frame (1) is provided with a longitudinal tear detection mechanism (2), the top of the longitudinal tear detection mechanism (2) is provided with an upper belt surface (6), the top of the belt conveyor frame (1) is provided with an adjustment mechanism (3), the bottom of the adjustment mechanism (3) is provided with a buffer bed (4), and the bottom of the buffer bed (4) is fixedly connected with a reinforcing plate (5); The longitudinal tear detection mechanism (2) includes a U-shaped clamp (23), the U-shaped clamp (23) is fixedly connected to the surface of the belt conveyor frame (1) by a set screw (27), the top of the U-shaped clamp (23) is fixedly connected with a fixed support (201), a support shaft (22) is fixedly connected between the two fixed supports (201), a proximity switch mounting bracket (25) is fixedly connected to the middle of the surface of the support shaft (22), an electromagnetic proximity switch (29) is fixedly connected to the bottom of the proximity switch mounting bracket (25), a swing bracket (28) is arranged on one side of the proximity switch mounting bracket (25), a balance weight (24) is fixedly connected to the bottom of the swing bracket (28), and the balance weight (24) is designed in a cylindrical shape.

2. The longitudinal tearing detection device for a conveyor belt according to claim 1, characterized in that: The top of the swing bracket (28) is fixedly connected with a detection rod (26), and the detection rod (26) is arranged on the top of the support shaft (22).

3. The longitudinal tear detection device for a conveyor belt according to claim 2, characterized in that: A roller (21) is arranged on one side of the detection rod (26), the roller (21) is fixedly connected to the top of the belt conveyor frame (1), and the number of the rollers (21) and the detection rods (26) is three each, and the three rollers (21) and the detection rods (26) are evenly distributed.

4. A longitudinal tear detection device for a conveyor belt according to claim 1, characterized in that: An anti-slip rubber pad is arranged on the inner surface of the U-shaped clamp (23), and the anti-slip rubber pad is fixedly connected to the U-shaped clamp (23) by strong glue, so as to enhance the friction between the U-shaped clamp (23) and the belt conveyor frame (1).

5. The longitudinal tear detection device for a conveyor belt according to claim 3, characterized in that: Anti-slip protrusions are arranged on the outer surface of the roller (21), the anti-slip protrusions are spirally distributed on the outer surface of the roller (21), and the anti-slip protrusions are made of rubber material, so as to increase the friction between the roller (21) and the upper belt surface (6).

6. The longitudinal tear detection device for a conveyor belt according to claim 1, characterized in that: The adjustment mechanism (3) includes a feed chute (37), the feed chute (37) is arranged on the top of the upper belt surface (6), mounting shafts (31) are rotatably connected to both sides of the surface of the feed chute (37), protective sleeves (38) are sleeved on the surfaces of the mounting shafts (31), fixing parts (33) are fixedly connected to the surfaces of the mounting shafts (31), and the fixing parts (33) are fixedly connected to the top of the belt conveyor frame (1).

7. An apparatus for detecting longitudinal tearing of a conveyor belt according to claim 6, characterized in that: A fixing plate (32) is fixedly connected to the surface of the fixing member (33); a support frame (35) is fixedly connected to the side of the fixing plate (32) facing away from the fixing member (33); a support rod (34) is rotatably connected inside the support frame (35); a cylinder (36) is rotatably connected to the surface of the support rod (34); a connecting shaft (301) is rotatably connected to the top of the cylinder (36); a mounting frame (39) is rotatably connected to the surface of the connecting shaft (301); and the mounting frames (39) are fixedly connected to both sides of the feeding chute (37).

8. The longitudinal tear detection device for a conveyor belt according to claim 7, wherein: The number of the cylinders (36) is two, and the two cylinders (36) are symmetrically arranged on both sides of the feeding chute (37).

9. The longitudinal tear detection device for a conveyor belt according to claim 6, wherein: The feeding chute (37) is designed to be inclined and is trapezoidal.

10. A longitudinal tear detection device for a conveyor belt according to claim 1, characterized in that: The four corners of the reinforcing plate (5) are provided with mounting holes, the reinforcing plate (5) is fixedly connected to the bottom of the belt conveyor frame (1) by means of bolts passing through the mounting holes, and a plurality of reinforcing ribs are provided on the surface of the reinforcing plate (5), the reinforcing ribs being distributed in a grid pattern and being used to improve the strength and rigidity of the reinforcing plate (5).

Images