Belt tearing detection device

Abstract

The utility model provides a belt tearing detection device, which relates to the technical field of belt tearing detection and comprises a mounting shaft sleeved at two ends of a belt, the surface of the mounting shaft is sleeved with a plurality of coaxially arranged mounting rings, the outer side edge of each mounting ring is rotatably connected with an anti-slip ring, and the end face of each mounting ring is rotatably connected with two swing arms. A plurality of mounting rings are arranged on the mounting shafts, so that the belt can be detected in different areas, and the two rolling shafts are arranged on the mounting rings, so that the belt is ensured to be in contact with one rolling shaft before passing through the anti-slip rings and to be in contact with the other rolling shaft after passing through the anti-slip rings; the pressure sensor is used for detecting the pressure borne by the rolling shaft in real time, people can conveniently and timely find the tearing of the belt at the early stage through the reading change of the pressure sensor, and the situation that the belt is broken, materials conveyed on the belt are scattered, and the follow-up repair difficulty is increased is prevented.

Description

Technical Field

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

[0002] Belt tear detection is a technical means used to monitor whether abnormal conditions such as tearing or damage occur in conveyor belts during operation. By monitoring the belt's operating status in real time, it can promptly detect tearing problems and issue alarms, thereby reducing equipment failures and economic losses caused by belt tears.

[0003] Therefore, a belt tear detection device, with announcement number CN222497615U, when working normally, when the magnetic block embedded at the end of the movable aluminum frame is within a distance of 5 to 15 mm from the transformer coil of the detection circuit, the output relay of the detection circuit is in the energized state and the protection circuit does not operate. When the belt tears, the material exposed on the back of the belt will hit the movable aluminum frame and be displaced as the material is pushed. At this time, the movable aluminum frame moves away from the detection distance of the detection circuit, the detection circuit will cause the output relay release contact to open, the protection circuit will operate, send a signal and stop the machine;

[0004] However, the premise of the existing technology is that the material falls on the movable aluminum frame. The premise of the material falling on the movable aluminum frame is that the belt is completely torn to the point of breaking. At this time, because the belt is completely broken, the material accumulates on the movable aluminum frame. The material will be completely loose and fall on the equipment, which can easily cause equipment damage and increase the difficulty of subsequent repairs. Utility Model Content

[0005] The purpose of this invention is to solve the problem of belt tear detection in the prior art, and to propose a belt tear detection device.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: a belt tear detection device, comprising a mounting shaft for sleeved on both ends of a belt, wherein a plurality of coaxially arranged mounting rings are sleeved on the surface of the mounting shaft, an anti-slip ring is rotatably connected to the outer side of the mounting ring, and two swing arms are rotatably connected to the end face of the mounting ring, wherein a rolling shaft is installed at the swing end of each of the two swing arms, and the two rolling shafts on the same mounting ring respectively abut against the inner side of the belt passing through both sides of the anti-slip ring, wherein a fixing strip is fixedly installed at the end face of the mounting ring between the two swing arms, and a guide rail is fixedly installed on the opposing side of the fixing strip facing the two swing arms, wherein a slider is inserted into the guide rail, and a spring rod is fixedly installed on the side of the slider facing the mounting ring, wherein a pressure sensor connected to the fixing strip is fixedly installed at the telescopic end of the spring rod facing the mounting ring, and a connecting arm is movably connected between the slider and the adjacent swing arm.

[0007] Preferably, a motor is fixedly mounted on one end of the side of the mounting shaft, and a rectangular rod parallel to the mounting shaft is fixedly mounted on the main shaft of the motor, the rectangular rod passing through the end faces of several mounting rings.

[0008] Preferably, the mounting ring end face is rotatably connected to a small toothed ring inserted into a rectangular rod, and the mounting ring end face is rotatably connected to a large toothed ring that meshes with the small toothed ring and is fixedly connected to the anti-slip ring end face.

[0009] Preferably, the mounting shaft is further fixedly connected to a fixing bracket that passes through the end faces of several mounting rings.

[0010] Preferably, one end of the connecting arm is hinged to the swing arm, and the other end of the connecting arm extends to both sides in a T-shaped rotating body and is inserted into the guide rail. The other end of the connecting arm abuts against the other side of the slider.

[0011] Preferably, the inner side of the small toothed ring is a rectangle that is slidably connected to the surface of the rectangular rod, and the end face of the mounting ring and the through portion of the rectangular rod are configured as a through hole with the inner wall of the through hole and the edge of the rectangular rod having a clearance fit.

[0012] Preferably, the two ends of the rolling shaft are flush with the two ends of the anti-slip ring.

[0013] Compared with the prior art, the advantages and positive effects of this utility model are as follows:

[0014] 1. In this utility model, by setting several mounting rings on the mounting shaft, the belt can be detected in different areas. The two rolling shafts set on the mounting rings ensure that the belt contacts one of the rolling shafts before passing the anti-slip ring and the other rolling shaft after passing the anti-slip ring. The pressure sensor is used to detect the pressure on the rolling shaft in real time. The change in the pressure sensor reading makes it easy for personnel to detect the early stage of belt tearing in time, preventing the belt from breaking and causing the material conveyed on the belt to spill, which would increase the difficulty of subsequent repairs.

[0015] 2. In this utility model, a rectangular rod is driven to rotate by a motor. The rectangular rod is inserted into a small toothed ring, which drives the small toothed ring to rotate. Under the action of meshing connection, the large toothed ring drives the anti-slip ring to rotate, so that all the anti-slip rings on the mounting shaft can rotate at the same speed. Attached Figure Description

[0016] Figure 1 This utility model provides a three-dimensional structural schematic diagram of a belt tear detection device;

[0017] Figure 2 This utility model provides a rear view structural diagram of the mounting ring of a belt tear detection device;

[0018] Figure 3This utility model proposes a belt tear detection device. Figure 2 A schematic diagram of the rear view structure;

[0019] Figure 4 This is a cross-sectional view of the anti-slip ring.

[0020] Figure 5 This utility model presents a structural schematic diagram of a fixing strip for a belt tear detection device.

[0021] Legend: 1. Mounting shaft; 2. Motor; 3. Fixing bracket; 4. Anti-slip ring; 5. Swing arm; 6. Rolling shaft; 7. Connecting arm; 8. Fixing strip; 9. Mounting ring; 10. Large toothed ring; 11. Small toothed ring; 12. Guide rail; 13. Slider; 14. Spring rod; 15. Pressure sensor; 16. Rectangular rod. Detailed Implementation

[0022] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described below with reference to the accompanying drawings and embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0023] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Therefore, the present invention is not limited to the specific embodiments disclosed in the following specification.

[0024] like Figure 1-5As shown, a belt tear detection device includes a mounting shaft 1 for sleeved at both ends of a belt. In actual use, the device can be installed at one end of the belt. Several coaxially arranged mounting rings 9 are sleeved on the surface of the mounting shaft 1. A fixing frame 3 is also fixedly connected to the side of the mounting shaft 1, penetrating the end faces of the mounting rings 9. The fixing frame 3, penetrating the mounting rings 9 on the mounting shaft 1, facilitates fixing the position of the mounting rings 9 and prevents them from rotating on the mounting shaft 1. An anti-slip ring 4 is rotatably connected to the outer side of the mounting ring 9, and two swing arms 5 are rotatably connected to the end face of the mounting ring 9. The surface of the anti-slip ring 4 is in contact with the inner side of the belt, so that the belt rotates under the action of friction through the rotation of the anti-slip ring 4. Rolling shafts 6 are installed at the swing ends of both swing arms 5. The two ends of the rolling shafts 6 are flush with the two ends of the anti-slip rings 4, and the two rolling shafts 6 on the same mounting ring 9 respectively abut against each other. The inner sides of the belt passing through the anti-slip ring 4, i.e., the two rolling shafts 6 are symmetrically distributed about the mounting shaft 1, ensure that the belt contacts one of the rolling shafts 6 before passing the anti-slip ring 4 and contacts the other rolling shaft 6 after passing the anti-slip ring 4. The belt with an intact surface will exert pressure on the rolling shaft 6 when it is taut, and because the surface of the belt is intact, the pressure on all the rolling shafts 6 on the mounting shaft 1 is equal. A fixing strip 8 is fixedly installed on the end face of the mounting ring 9 between the two swing arms 5. Guide rails 12 are fixedly installed on the opposing sides of the fixing strip 8 facing the two swing arms 5. A slider 13 is inserted into the guide rail 12. A spring rod 14 is fixedly installed on the side of the slider 13 facing the mounting ring 9. The telescopic end of the spring rod 14 faces the mounting ring 9 and is fixedly installed with a pressure sensor 15 connected to the fixing strip 8. A connecting arm 7 is movably connected between the slider 13 and the adjacent swing arm 5. Figure 5 When the belt exerts pressure on the rolling shaft 6, the swing arm 5, which mounts the rolling shaft 6, exerts pressure on the connecting arm 7 in the direction of the fixed bar 8. This pushes one end of the connecting arm 7 to slide forward within the guide rail 12, causing the spring rod 14 to elastically contract. Conversely, when the spring rod 14 elastically contracts, it generates a counter-pressure on the pressure sensor 15. When the belt tears on the side, the surface tension of the belt on both sides of the tear decreases when the tear moves to the mounting shaft 1. As a result, the pressure acting on the rolling shaft 6 decreases, and the spring rod 14 elastically extends and pushes one end of the connecting arm 7 within the guide rail 12 to move backward. This causes the two rolling shafts 6 at the tear to swing away from the fixed bar 8. When the spring rod 14 elastically extends, the pressure it generates on the pressure sensor 15 decreases. This makes it easier for personnel to determine whether the belt is torn and allows for timely shutdown in the early stages of tearing to prevent material on the belt from contacting the equipment body and becoming loose.

[0025] To ensure the rotation of the anti-slip rings 4: a motor 2 is fixedly installed on one end of the side of the mounting shaft 1. A rectangular rod 16 parallel to the mounting shaft 1 is fixedly installed on the main shaft of the motor 2. The rectangular rod 16 passes through the end face of the mounting rings 9. A small toothed ring 11 inserted into the rectangular rod 16 is rotatably connected to the end face of the mounting ring 9. A large toothed ring 10 meshes with the small toothed ring 11 and is fixedly connected to the end face of the anti-slip ring 4. The motor 2 drives the rectangular rod 16 to rotate. The insertion of the rectangular rod 16 into the small toothed ring 11 drives the small toothed ring 11 to rotate. Thus, the large toothed ring 10 drives the anti-slip ring 4 to rotate under the action of meshing connection.

[0026] Further explanation:

[0027] One end of the connecting arm 7 is hinged to the swing arm 5, and the other end of the connecting arm 7 extends to both sides in a T-shaped rotating body and is inserted into the guide rail 12. The other end of the connecting arm 7 abuts against the other side of the slider 13, thus connecting the two ends. Figure 5 This design ensures that the connecting arm 7 can move smoothly within the guide rail 12 while rotating.

[0028] The inner side of the small toothed ring 11 is a rectangle that slides on the surface of the rectangular rod 16. The end face of the mounting ring 9 and the through part of the rectangular rod 16 are set as through holes, and the inner wall of the through hole is clearance-fitted with the edge of the rectangular rod 16. This ensures that the rectangular rod 16 can rotate within the mounting ring 9 when it rotates, without contacting the inner wall of the mounting ring 9. Conversely, when the rectangular rod 16 rotates, it can drive the small toothed ring 11 on the surface of the mounting ring 9 to rotate smoothly.

[0029] Working principle: During use, the number of mounting rings 9 installed on the mounting shaft 1 is adjusted according to the width of the belt. The mounting shaft 1 is installed on one end of the belt on the equipment. One end of the belt contacts several anti-slip rings 4 on the mounting shaft 1. When the taut belt passes before and after the mounting shaft 1, it exerts pressure on the two rolling shafts 6 on the mounting rings 9. When the belt exerts pressure on the rolling shafts 6, the swing arm 5 of the mounting rolling shaft 6 exerts pressure on the connecting arm 7 in the direction of the fixing bar 8. Therefore, it will push one end of the connecting arm 7 to slide forward in the guide rail 12, which will cause the spring rod 14 to elastically contract. Conversely, when the spring rod 14 elastically contracts, it will generate a reaction pressure on the pressure sensor 15. When the pressure reading of the pressure sensor 15 at one of the positions decreases, it indicates that the surface tension of the belt passing through the mounting ring 9 has decreased, that is, a tear has occurred. Personnel should stop the machine in time to inspect the belt.

[0030] The wiring diagram of the pressure sensor 15 in this utility model is common knowledge in the field, and its working principle is a well-known technology. The appropriate model is selected according to the actual use. Therefore, the control method and wiring layout of the pressure sensor 15 will not be explained in detail.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any other way. Any person skilled in the art may make changes or modifications to the above-disclosed technical content to create equivalent embodiments for application in other fields. However, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of the present utility model without departing from the technical solution of the present utility model shall still fall within the protection scope of the technical solution of the present utility model.

Claims

1. A belt rip detection apparatus, characterized by: The utility model provides a belt installation device, including the installation shaft (1) for the both ends of the belt, the surface of installation shaft (1) is sleeved with a plurality of coaxial installation ring (9), the outside side of installation ring (9) is rotatably connected with antiskid ring (4) and the end surface of installation ring (9) is rotatably connected with two swing arms (5), and the swing end of two swing arms (5) is equipped with the rolling shaft (6), and two rolling shafts (6) on the same installation ring (9) respectively touch the inner side of the belt through the both sides of antiskid ring (4), the fixed mounting of fixed strip (8) is located between the end surface of installation ring (9) and two swing arms (5), the facing side of two swing arms (5) is fixedly installed with guide rail (12) towards the facing side of two swing arms (5), the guide rail (12) is inserted with sliding block (13), the spring rod (14) of sliding block (13) is fixedly installed with pressure sensor (15) towards the one side of installation ring (9), and the spring rod (14) telescopic end is fixedly installed with the pressure sensor (15) connected with fixed strip (8) towards installation ring (9), and the swing arm (5) of sliding block (13) and adjacent is movably connected with connecting arm (7).

2. The belt tear detection apparatus of claim 1, wherein: The motor (2) is fixedly installed on one end of the side surface of the installation shaft (1), the rectangular rod (16) is fixedly installed on the main shaft of the motor (2) and is arranged in parallel with the installation shaft (1), and the rectangular rod (16) penetrates the end surface of the installation ring (9).

3. The belt tear detection apparatus of claim 2, wherein: The small gear ring (11) is rotatably connected to the end surface of the installation ring (9) and is inserted into the rectangular rod (16), the large gear ring (10) is rotatably connected to the end surface of the installation ring (9) and is meshed with the small gear ring (11) and is fixedly connected with the end surface of the antiskid ring (4).

4. The belt tear detection apparatus of claim 1, wherein: The fixed frame (3) is fixedly connected to the side surface of the installation shaft (1) and penetrates the end surface of the installation ring (9).

5. The belt tear detection apparatus of claim 1, wherein: One end of the connecting arm (7) is hingedly connected to the swing arm (5), the other end of the connecting arm (7) extends to both sides to form a T-shaped rotary body and is inserted into the guide rail (12), and the other end of the connecting arm (7) abuts against the other side of the sliding block (13).

6. The belt tear detection apparatus of claim 3, wherein: The inner side of the small gear ring (11) is in sliding connection with the surface of the rectangular rod (16), and the end surface of the installation ring (9) and the penetrating portion of the rectangular rod (16) are provided with penetrating holes, and the inner wall of the penetrating hole is in clearance fit with the edge of the rectangular rod (16).

7. The belt tear detection apparatus of claim 1, wherein: The rolling shaft (6) is flush with the both ends of the antiskid ring (4).

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