An intelligent detection device for longitudinal tearing of belts

Abstract

The present invention belongs to the technical field of belt longitudinal tear detection, and in particular, relates to an intelligent belt longitudinal tear detection device, comprising a C-shaped vertical plate, a protective shell is arranged on the C-shaped vertical plate, an inclined scraper is fixedly connected to one side of the protective shell, an adjustment shell is fixedly connected to the C-shaped vertical plate, a belt clamping adjustment mechanism is arranged in the adjustment shell; a plurality of gate-shaped plates are fixedly connected to the adjustment shell, a belt laminating mechanism is arranged in the gate-shaped plate, and a plurality of paint piston cylinders are fixedly connected to the top of the C-shaped vertical plate. The present invention provides a belt clamping adjustment mechanism, and the height of the supporting matching roller can be adjusted by turning the adjustment knob. The device can also detect and mark the longitudinal tear position, and the detection effect and accuracy are better. The overall structure of the device is also more compact and the cost is lower. By providing an alarm mechanism, the sound brush and the sound drum can rotate relative to each other, so that the sound drum emits an alarm sound to remind the staff to check.

Description

Technical Field

[0001] The invention belongs to the technical field of belt longitudinal tear detection, and in particular relates to an intelligent belt longitudinal tear detection device. Background Art

[0002] Belt conveyor, also known as belt conveyor or belt conveyor, is a conventional conveying mechanical equipment widely used in daily life and production. It uses continuous belt motion to transmit materials. It is mainly composed of a frame, a conveyor belt, a belt roller, a tensioning device, a transmission device, etc. The working principle of the belt conveyor is that when the equipment is started, the motor transmits power to the drive roller through the reducer, and the drive roller drives the belt to rotate. The belt moves along the guide to transport materials from one location to another. When the belt conveyor is in use, due to the irregularity of the transported material and long-term use, the belt surface will tear longitudinally, causing the belt to break and deviate. This will not only reduce the material transportation efficiency, but also greatly increase the maintenance cost of the belt conveyor in the later stage.

[0003] The existing devices for detecting longitudinal tearing of belts still have the following shortcomings:

[0004] The existing means of dealing with longitudinal tearing of belts mainly involves adding fine steel wires to the belts during the production process to increase the tensile strength of the belts, or adding fibers to the belts to ensure the durability of the belts. Since the belt transportation direction is generally cross-sectional or perpendicular to the longitudinal tearing direction, this obviously does not solve the problem. During detection, the existing devices can only detect or warn of cracked belts. At this time, longitudinal tearing of the belts has already occurred, and the only way to ensure that the belts will no longer be used is to ensure the safety of material transportation. However, the belts themselves have been damaged, and the difficulty of subsequent repairs has been greatly increased.

[0005] The main reason for the longitudinal tearing of the belt is that when transporting objects, the sharp parts such as the edges and corners of the objects will cut the belt surface. Over time, the belt will inevitably be damaged. Another very important point is that when transporting some substances that have a corrosive effect on rubber, impurities are easily adsorbed on the belt surface. After staying for a long time, it greatly damages the durability of the belt.

[0006] When the existing device detects the longitudinal tear of the belt, it mainly uses a high-definition camera to take targeted photos. Since the belt conveyor itself is relatively cheap, the high-definition camera has extremely poor equipment safety in this extremely complex and harsh working environment, and the maintenance cost is extremely high. It should be noted that the initial stage of the longitudinal tear of the belt is that the rubber layer on the surface of the belt is irregularly extended and torn, and the thickness of the belt will change at this time. The high-definition camera is obviously unable to detect and observe this situation. Summary of the invention

[0007] To achieve the above object, the present invention adopts the following technical solutions: an intelligent belt longitudinal tear detection device, comprising a C-shaped vertical plate, a protective shell is provided on the C-shaped vertical plate, an inclined scraper is fixedly connected to one side of the protective shell, an adjustment shell is fixedly connected to the C-shaped vertical plate, and a belt clamping adjustment mechanism is provided in the adjustment shell;

[0008] A plurality of door-shaped plates are fixedly connected to the adjusting shell, a belt fitting mechanism is arranged inside the door-shaped plates, a plurality of paint piston cylinders are fixedly connected to the top of the C-shaped vertical plate, and a fixed-point marking mechanism and an alarm mechanism are arranged inside the door-shaped plates.

[0009] Furthermore, the belt clamping and adjusting mechanism includes a threaded rod, a nut, a sliding groove, a matching fixed bracket and a long rotating frame, the threaded rod is rotatably connected in the adjusting housing, the nut is threadedly connected to the threaded rod, the matching fixed bracket is fixedly connected to the nut, the long rotating frame is fixedly connected to the matching fixed bracket, the sliding groove is opened on the adjusting housing, and the matching fixed bracket is slidably connected in the sliding groove.

[0010] Furthermore, the threaded rod is coaxially fixedly connected with a driven bevel gear, the adjusting shell is rotatably connected with an adjusting knob, the inner wall of the adjusting shell is rotatably connected with a driving bevel gear, the adjusting knob shaft passes through the adjusting shell and is coaxially fixedly connected with the driving bevel gear, the driving bevel gear is meshed with the driven bevel gear, the long rotating frame is rotatably connected with a supporting matching roller shaft, and a notch is provided on the C-shaped vertical plate corresponding to the position of the adjusting knob.

[0011] Furthermore, the belt fitting mechanism includes a limiting groove, a sliding seat, a top support plate and a return spring. The limiting groove is opened on the inner walls on both sides of the door-shaped plate, the sliding seat is slidably connected in the limiting groove, the top support plate is fixedly connected to the sliding seat, and the two return springs are fixedly connected to the top support plate. The end of the return spring away from the top support plate is fixedly connected to the top of the limiting groove.

[0012] Furthermore, a driving shaft is rotatably connected between the two sliding seats on the corresponding side, a bonding roller is coaxially fixedly connected to the driving shaft, and an anti-skid tire skin is fixedly connected to the outside of the bonding roller.

[0013] Furthermore, a matching connection frame is fixedly connected between the two sliding seats in the door-shaped plate, and a pressure connection shaft is fixedly connected to the matching connection frame. The pressure connection shaft passes through the door-shaped plate and is slidably connected thereto.

[0014] Furthermore, a piston plate is slidably connected inside the paint piston cylinder, the pressure connection shaft passes through the paint piston cylinder on the corresponding side and is fixedly connected to the piston plate, and a paint outflow port is provided at the bottom of the paint piston cylinder.

[0015] Furthermore, a support frame is provided inside the door-shaped plate, a positioning mark spraying pipe is fixedly connected to the support frame, and the positioning mark spraying pipe is connected to the paint outflow port on the corresponding side through a hose.

[0016] Furthermore, the alarm mechanism includes a matching tooth plate, an alarm housing, a matching gear, a sound drum and a sound brush, the matching tooth plate is fixedly connected to the matching connecting frame, the alarm housing is fixedly connected to the bottom of the door-shaped plate, the alarm housing is rotatably connected with a matching gear, the matching gear is meshed with the matching tooth plate, the sound drum is arranged on the inner wall of the alarm housing, the sound brush is rotatably connected in the alarm housing, and the matching gear shaft passes through the alarm housing and is coaxially fixedly connected to the sound brush.

[0017] Compared with the prior art, the advantages of the present invention are:

[0018] The present invention provides a belt clamping adjustment mechanism, and the height of the supporting matching roller can be adjusted by turning the adjustment knob, so that the belt can be clamped by the fitting roller. Since the belt clamping adjustment mechanism can adjust the height of the supporting matching roller in a variety of ways, the device can also clamp belts of different thicknesses, which improves the compatibility and practicality of the device.

[0019] According to the characteristic that the thickness of the torn part of the belt will become smaller when the belt is torn longitudinally, the present invention specifically arranges multiple pairs of supporting and matching rollers and bonding rollers to bond the belt. When the belt is torn longitudinally, the thickness of the longitudinal tearing position of the belt is reduced, and the bonding roller will always be bonded with the belt under the elastic force of the reset spring. When the belt thickness changes, the distance between the bonding roller and the supporting and matching roller will change. At this time, the position of the piston plate in the pigment piston cylinder will change accordingly, and the pigment in the pigment piston cylinder will be squeezed to the positioning mark spray tube and sprayed out, thereby marking the longitudinal tearing position of the belt to facilitate subsequent maintenance of the longitudinal tearing position of the belt. The advantage of the arrangement of this mechanism compared to other detection devices is that even when the longitudinal tearing of the belt is not obvious and the longitudinal tearing on the belt surface is not easy to observe, the device can still detect and mark the longitudinal tearing position, and the detection effect and accuracy are better, and the overall structure of the device is more compact and the cost is lower.

[0020] The present invention sets an alarm mechanism and utilizes the characteristic that the distance between the supporting matching roller shaft and the bonding roller wheel will get closer to each other due to the reduction of thickness at the longitudinal tearing position, so that relative displacement occurs between the matching tooth plate and the matching gear on the matching connecting frame, thereby causing relative rotation between the sound brush and the sound drum, so that the sound drum emits an alarm sound to remind the staff to check. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a three-dimensional structural schematic diagram of an intelligent belt longitudinal tear detection device provided by the present invention;

[0022] Figure 2 It is a three-dimensional internal structure schematic diagram of a belt longitudinal tear intelligent detection device provided by the present invention;

[0023] Figure 3 It is a three-dimensional internal structure schematic diagram of an adjustment shell of an intelligent belt longitudinal tear detection device provided by the present invention;

[0024] Figure 4 It is a three-dimensional internal structure schematic diagram of a door-shaped plate of an intelligent belt longitudinal tear detection device provided by the present invention;

[0025] Figure 5 It is a three-dimensional structural schematic diagram of a door-shaped plate of an intelligent belt longitudinal tear detection device provided by the present invention;

[0026] Figure 6 It is a three-dimensional structural schematic diagram of a laminating roller and an anti-skid tire skin part of a belt longitudinal tear intelligent detection device provided by the present invention;

[0027] Figure 7 It is a three-dimensional internal structure schematic diagram of a pigment piston cylinder of a belt longitudinal tearing intelligent detection device provided by the present invention;

[0028] Figure 8 It is a three-dimensional structural schematic diagram of the alarm housing part of an intelligent belt longitudinal tear detection device provided by the present invention;

[0029] Fig. 9 The present invention provides a schematic diagram of the three-dimensional internal structure of an alarm housing of an intelligent belt longitudinal tear detection device.

[0030] In the figure, 1 is a C-shaped vertical plate, 2 is a protective shell, 3 is an inclined scraper, 4 is an adjustment shell, 5 is a door-shaped plate, 6 is a pigment piston cylinder, 7 is a threaded rod, 8 is a nut, 9 is a matching fixed bracket, 10 is a long rotating frame, 11 is a driven bevel gear, 12 is an adjustment knob, 13 is an active bevel gear, 14 is a supporting matching roller shaft, 15 is a sliding seat, 16 is a top support plate, 17 is a return spring, 18 is an active rotating shaft, 19 is a fitting roller, 20 is an anti-skid tire skin, 21 is a matching connecting frame, 22 is a pressure connecting shaft, 23 is a piston plate, 24 is a pigment outflow port, 25 is a positioning mark spray tube, 26 is a matching tooth plate, 27 is an alarm shell, 28 is a matching gear, 29 is a sound drum, and 30 is a sound brush. DETAILED DESCRIPTION

[0031] The following examples are for illustrative purposes only and are not intended to limit the scope of the present invention.

[0032] like Figure 1-Figure 9 As shown, a belt longitudinal tearing intelligent detection device comprises:

[0033] A C-shaped vertical plate 1 is provided with a protective shell 2, one side of the protective shell 2 is fixedly connected to an inclined scraper 3, an adjustment shell 4 is fixedly connected to the C-shaped vertical plate 1, and a belt clamping adjustment mechanism is provided in the adjustment shell 4. When the belt is operating normally, the movement of the belt will cause relative movement between the belt and the inclined scraper 3, and the inclined scraper 3 will scrape impurities from the belt;

[0034] A plurality of door-shaped plates 5 are fixedly connected to the adjusting housing 4, a belt laminating mechanism is arranged inside the door-shaped plates 5, a plurality of pigment piston cylinders 6 are fixedly connected to the top of the C-shaped vertical plate 1, and an alarm mechanism is arranged inside the door-shaped plates 5;

[0035] The belt clamping adjustment mechanism includes a threaded rod 7, a nut 8, a sliding groove, a matching fixed bracket 9 and a long rotating frame 10. The threaded rod 7 is rotatably connected to the adjusting housing 4. The nut 8 is threadedly connected to the threaded rod 7. The matching fixed bracket 9 is fixedly connected to the nut 8. The long rotating frame 10 is fixedly connected to the matching fixed bracket 9. The sliding groove is opened on the adjusting housing 4. The matching fixed bracket 9 is slidably connected in the sliding groove. The threaded rod 7 is coaxially fixedly connected with a driven bevel gear 11. An adjusting knob 12 is rotatably connected to the adjusting housing 4. An active bevel gear 13 is rotatably connected to the inner wall of the adjusting housing 4. The rotating shaft of the adjusting knob 12 passes through the adjusting housing 4 and is coaxially fixedly connected to the active bevel gear 13. The active bevel gear 13 meshes with the driven bevel gear 11. A supporting matching roller shaft 14 is rotatably connected in the long rotating frame 10. A notch is opened on the C-shaped vertical plate 1 corresponding to the position of the adjusting knob 12. The adjusting knob 12 on the C-shaped vertical plate 1 can be rotated from the notch. When the adjusting knob 12 rotates, it rotates synchronously with it. The shaft is fixedly connected to the active bevel gear 13 and rotates accordingly. Since the active bevel gear 13 is meshed with the driven bevel gear 11, the driven bevel gear 11 can rotate, and then the threaded rod 7 coaxially fixedly connected to the driven bevel gear 11 will rotate. When the threaded rod 7 rotates, the nut 8 on the threaded rod 7, the matching fixed bracket 9 and the long rotating frame 10 rise or fall accordingly, and the supporting matching roller shaft 14 can move upward, thereby cooperating with the fitting roller wheel 19 to clamp the belt. When clamping, it is necessary to control the fitting roller wheel 19 so that the sliding seat 15 compresses the return spring 17. By setting a belt clamping adjustment mechanism, the height of the supporting matching roller shaft 14 can be adjusted by rotating the adjustment knob 12, so as to clamp the belt with the fitting roller wheel 19. Since the belt clamping adjustment mechanism can perform various adjustments for the height of the supporting matching roller shaft 14, this also enables the device to clamp belts of different thicknesses, which improves the compatibility and practicality of the device.

[0036] The belt laminating mechanism includes a limiting groove, a sliding seat 15, a top support plate 16 and a return spring 17. The limiting grooves are arranged on the inner walls on both sides of the door-shaped plate 5. The sliding seat 15 is slidably connected in the limiting groove. The top support plate 16 is fixedly connected to the sliding seat 15. Two return springs 17 are fixedly connected to the top support plate 16. One end of the return spring 17 away from the top support plate 16 is fixedly connected to the top of the limiting groove. An active rotating shaft 18 is rotatably connected between the two sliding seats 15 on the corresponding side. A laminating roller 19 is coaxially fixedly connected to the active rotating shaft 18. The laminating roller 19 is fixedly connected to the outside with an anti-slip tire skin 20. A matching connection frame 21 is fixedly connected between the two sliding seats 15 in the door-shaped plate 5, and a pressure connection shaft 22 is fixedly connected to the matching connection frame 21. The pressure connection shaft 22 penetrates the door-shaped plate 5 and is slidably connected thereto. A piston plate 23 is slidably connected in the pigment piston cylinder 6. The pressure connection shaft 22 penetrates the pigment piston cylinder 6 on the corresponding side and is fixedly connected to the piston plate 23. A pigment outflow port 24 is provided at the bottom of the pigment piston cylinder 6. A support frame is provided in the door-shaped plate 5. A positioning mark spraying pipe 25 is fixedly connected to the support frame. The positioning mark spraying pipe 25 is connected to the pigment outflow port 24 on the corresponding side. The openings 24 are connected by a hose. According to the characteristic that the thickness of the torn part of the belt will decrease when the belt is torn longitudinally, multiple pairs of supporting matching rollers 14 and bonding rollers 19 are specifically arranged to bond the belt. When the belt is torn longitudinally, the thickness of the belt at the longitudinal tearing position decreases, and the bonding roller 19 will always bond with the belt under the elastic force of the reset spring 17. When the thickness of the belt changes, the distance between the bonding roller 19 and the supporting matching roller 14 will change, the matching connecting frame 21 will move downward, and the piston plate 23 connected by the pressure connecting shaft 22 will move downward in the pigment piston cylinder 6. The pigment piston cylinder 6 is filled with colored ink, and the pigment is pressed out under the downward pressure of the piston plate 23. The pigment in the pigment piston cylinder 6 is then squeezed to the positioning mark spraying tube 25 and then sprayed out, thereby marking the longitudinal tearing position of the belt to facilitate the subsequent maintenance of the longitudinal tearing position of the belt. The advantage of this mechanism compared to other detection devices is that even if the longitudinal tearing of the belt is not obvious and the longitudinal tearing on the belt surface is not easy to observe, the device can still detect and mark the longitudinal tearing position, the detection effect and accuracy are better, and the overall structure of the device is more compact and the cost is lower;

[0037] The alarm mechanism includes a matching tooth plate 26, an alarm housing 27, a matching gear 28, a sound drum 29 and a sound brush 30. The matching tooth plate 26 is fixedly connected to the matching connecting frame 21, and the alarm housing 27 is fixedly connected to the bottom of the door-shaped plate 5. The alarm housing 27 is rotatably connected with a matching gear 28, which meshes with the matching tooth plate 26. The sound drum 29 is arranged on the inner wall of the alarm housing 27, and the sound brush 30 is rotatably connected in the alarm housing 27. The rotating shaft of the matching gear 28 passes through the alarm housing 27 and is coaxially fixedly connected with the sound brush 30. By setting up the alarm mechanism, the distance between the supporting matching roller shaft 14 and the bonding roller 19 will be close to each other due to the reduction of the thickness at the longitudinal tearing position, so that the matching tooth plate 26 on the matching connecting frame 21 and the matching gear 28 are relatively displaced, thereby causing the sound brush 30 and the sound drum 29 to rotate relative to each other, so that the sound drum 29 emits an alarm sound to remind the staff to check.

[0038] The working principle of the present invention is as follows:

[0039] When the belt is operating normally, the movement of the belt will cause relative movement between the belt and the inclined scraper 3, and the inclined scraper 3 will scrape impurities from the belt;

[0040] The adjusting knob 12 on the C-shaped vertical plate 1 can be rotated from the notch. When the adjusting knob 12 is rotated, the active bevel gear 13 coaxially connected thereto rotates accordingly. Since the active bevel gear 13 is meshed with the driven bevel gear 11, the driven bevel gear 11 can rotate, and then the threaded rod 7 coaxially connected thereto and fixedly connected thereto rotates. When the threaded rod 7 rotates, the nut 8 on the threaded rod 7, the matching fixed bracket 9 and the long rotating bracket 10 rise or fall accordingly, and the supporting matching roller shaft 14 can move upward, thereby matching the adhesive The fitting roller 19 clamps the belt. When clamping, the fitting roller 19 needs to be controlled so that the sliding seat 15 compresses the return spring 17. By setting the belt clamping adjustment mechanism, the height of the supporting fitting roller 14 can be adjusted by turning the adjustment knob 12, so that the fitting roller 19 clamps the belt. Since the belt clamping adjustment mechanism can perform various adjustments for the height of the supporting fitting roller 14, the device can clamp belts of different thicknesses, which improves the compatibility and practicality of the device.

[0041] According to the characteristic that the thickness of the torn part of the belt will become smaller when the belt is torn longitudinally, multiple pairs of supporting matching rollers 14 and laminating rollers 19 are arranged to laminar the belt. When the belt is torn longitudinally, the thickness of the belt at the longitudinal tearing position decreases, and the laminating roller 19 will always be in contact with the belt under the elastic force of the reset spring 17. When the thickness of the belt changes, the distance between the laminating roller 19 and the supporting matching roller 14 will change, and the matching connecting frame 21 will move downward, and the piston plate 23 connected by the pressure connecting shaft 22 will move downward in the pigment piston cylinder 6, and the pigment piston The cylinder 6 is filled with colored ink. Under the downward pressure of the piston plate 23, the pigment is pressed out, and the pigment in the pigment piston cylinder 6 is squeezed to the positioning mark spraying tube 25 and sprayed out, thereby marking the longitudinal tearing position of the belt, so as to facilitate the subsequent maintenance of the longitudinal tearing position of the belt. The advantage of this mechanism compared with other detection devices is that even if the longitudinal tearing of the belt is not obvious and the longitudinal tearing on the belt surface is not easy to observe, the device can still detect and mark the longitudinal tearing position, the detection effect and accuracy are better, and the overall structure of the device is more compact and the cost is lower;

[0042] By setting up an alarm mechanism and utilizing the characteristic that the distance between the supporting mating roller shaft 14 and the bonding roller 19 will get closer to each other due to the reduction of thickness at the longitudinal tearing position, a relative displacement occurs between the mating tooth plate 26 and the mating gear 28 on the mating connecting frame 21, thereby causing relative rotation between the sound brush 30 and the sound drum 29, causing the sound drum 29 to emit an alarm sound to remind the staff to check.

[0043] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An intelligent belt longitudinal tear detection device, comprising a C-shaped vertical plate (1), characterized in that: The C-shaped vertical plate (1) is provided with a protective shell (2), one side of the protective shell (2) is fixedly connected to an inclined scraper (3), the C-shaped vertical plate (1) is fixedly connected to an adjustment shell (4), a belt clamping adjustment mechanism is provided inside the adjustment shell (4), and the belt clamping adjustment mechanism comprises a threaded rod (7), a nut (8), a sliding groove, a matching fixed bracket (9) and a long rotating frame (10); A plurality of door-shaped plates (5) are fixedly connected to the adjustment housing (4), a belt laminating mechanism is arranged inside the door-shaped plates (5), a plurality of pigment piston cylinders (6) are fixedly connected to the top of the C-shaped vertical plate (1), and an alarm mechanism is arranged inside the door-shaped plates (5); The threaded rod (7) is coaxially fixedly connected to a driven bevel gear (11); an adjusting knob (12) is rotatably connected to the adjusting housing (4); an active bevel gear (13) is rotatably connected to the inner wall of the adjusting housing (4); a rotating shaft of the adjusting knob (12) passes through the adjusting housing (4) and is coaxially fixedly connected to the active bevel gear (13); the active bevel gear (13) meshes with the driven bevel gear (11); a supporting matching roller shaft (14) is rotatably connected inside the long rotating frame (10); and a notch is provided on the C-shaped vertical plate (1) at a position corresponding to the adjusting knob (12); The belt fitting mechanism comprises a limiting groove, a sliding seat (15), a top support plate (16) and a return spring (17), wherein the limiting groove is formed on the inner walls of both sides of the door-shaped plate (5), the sliding seat (15) is slidably connected in the limiting groove, the top support plate (16) is fixedly connected to the sliding seat (15), and two return springs (17) are fixedly connected to the top support plate (16), and one end of the return spring (17) away from the top support plate (16) is fixedly connected to the top of the limiting groove; A driving shaft (18) is rotatably connected between the two sliding seats (15) on the corresponding side, a laminating roller (19) is coaxially fixedly connected to the driving shaft (18), and an anti-skid tire skin (20) is fixedly connected to the outside of the laminating roller (19); A matching connection frame (21) is fixedly connected between the two sliding seats (15) in the door-shaped plate (5), and a pressure connection shaft (22) is fixedly connected to the matching connection frame (21). The pressure connection shaft (22) passes through the door-shaped plate (5) and is slidably connected thereto; A piston plate (23) is slidably connected inside the pigment piston cylinder (6), the pressure connection shaft (22) passes through the pigment piston cylinder (6) on the corresponding side and is fixedly connected to the piston plate (23), and a pigment outflow port (24) is provided at the bottom of the pigment piston cylinder (6); A support frame is provided inside the door-shaped plate (5), a positioning mark spraying pipe (25) is fixedly connected to the support frame, and the positioning mark spraying pipe (25) is connected to the pigment outflow port (24) on the corresponding side through a hose; The threaded rod (7) is rotatably connected to the adjusting housing (4); the nut (8) is threadably connected to the threaded rod (7); the matching fixed bracket (9) is fixedly connected to the nut (8); the long rotating frame (10) is fixedly connected to the matching fixed bracket (9); the sliding groove is formed on the adjusting housing (4); and the matching fixed bracket (9) is slidably connected to the sliding groove.

2. The intelligent belt longitudinal tear detection device according to claim 1 is characterized in that: The alarm mechanism comprises a matching tooth plate (26), an alarm housing (27), a matching gear (28), a sound drum (29) and a sound brush (30); the matching tooth plate (26) is fixedly connected to the matching connecting frame (21); the alarm housing (27) is fixedly connected to the bottom of the door-shaped plate (5); a matching gear (28) is rotatably connected to the alarm housing (27); the matching gear (28) is meshed with the matching tooth plate (26); the sound drum (29) is arranged on the inner wall of the alarm housing (27); the sound brush (30) is rotatably connected to the inside of the alarm housing (27); the rotating shaft of the matching gear (28) passes through the alarm housing (27) and is coaxially fixedly connected to the sound brush (30).

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