A belt conveyor detection device

Abstract

The present invention provides a belt conveyor detection device, which relates to the technical field of belt conveyors and includes a belt conveyor body having a conveyor belt and a frame. On both sides of the frame, screw conveyors are installed. On the slide rails of the screw conveyors, machine boxes are installed. The screw conveyors drive the machine boxes to translate on the slide rails. On the machine boxes, a lower detection component for detecting the tension of the non-carrying section of the conveyor belt and an upper detection component for detecting the tension of the carrying section of the conveyor belt, the vibration frequency of the frame, and the material loss rate of the belt conveyor body are provided. With this belt conveyor detection device, it is possible to simultaneously detect the tension values of the carrying section and the non-carrying section on one side of the conveyor belt. If there is a problem of too large a difference, the imbalance of the tension force will cause the belt to deviate, slip, or be excessively worn, indicating that there is a risk of skew or failure in the tensioning system. Engineers can accurately diagnose the state of the tensioning system, load distribution, structural defects, and aging risks, and formulate targeted maintenance strategies.

Description

Technical Field

[0001] The present invention relates to the technical field of belt conveyors, and specifically to a belt conveyor detection device. Background Art

[0002] A belt conveyor, also known as a belt conveyer, has the characteristics of strong conveying capacity, long conveying distance, simple structure and easy maintenance, and can be conveniently programmed and automated.

[0003] For example, a belt conveyor tension detection device with the application number CN201620262690.2 includes adjusting screws installed on the frame on both sides of the belt. A slider is sleeved on the adjusting screw, and a slider cover is provided on the slider. One end of the adjusting screw is connected to a sensor, and the sensor is fixed on the frame through a base. By receiving the signal about the belt tension through the sensor, the real-time adjustment of the belt tension can be realized. The structure of this utility model is simple and easy to use, which is important for maintaining the stability of the belt tension, improving the measurement accuracy and stability, and for the maintenance-free and calibration-free of the belt scale.

[0004] The above device uses a sensor to detect the belt tension, but the belt also needs to be detected for various problems, such as whether there is a leakage problem with the belt, whether the connection between the bracket and the belt is stable, the inclination angle problem during belt transmission, etc. Other detection devices need to be introduced, and the detection process is cumbersome, time-consuming and laborious. Summary of the Invention

[0005] The purpose of the present invention is to make up for the deficiencies of the prior art and propose a belt conveyor detection device, which solves the problems that the belt also needs to be detected for various problems, such as whether there is a leakage problem with the belt, whether the connection between the bracket and the belt is stable, the inclination angle problem during belt transmission, etc., and other detection devices need to be introduced, and the detection process is cumbersome, time-consuming and laborious.

[0006] To solve the above technical problems, the present invention provides the following technical solutions: A belt conveyor detection device includes a belt conveyor body, which has a conveyor belt and a frame. On both sides of the frame, screw conveyors are installed. On the slide rails of the screw conveyors, machine boxes are installed. The screw conveyors drive the machine boxes to translate on the slide rails. On the machine boxes, there are lower detection components for detecting the tension of the non-load section of the conveyor belt and upper detection components for detecting the tension of the load section of the conveyor belt, the vibration frequency of the frame, and the material loss rate of the belt conveyor body. Inside the machine box, there is a fourth motor and a transmission rod connected to the upper detection component. The fourth motor is connected to the transmission rod. The fourth motor drives the upper detection component to rotate, changing the relative position between the upper detection component and the lower detection component. When the upper detection component is directly above the lower detection component, the upper detection component and the lower detection component respectively detect the tension of the load section and the non-load section of the conveyor belt. When the upper detection component is directly below the lower detection component, the upper detection component and the lower detection component respectively detect the vibration frequency of the frame and the vibration frequency of the non-load section of the conveyor belt. When the upper detection component is below the lower detection component and the heads of the lower detection components on both sides are butted, the material loss rate of the belt conveyor body is detected.

[0007] Preferably, it further includes a claw mechanism, a third electric slide rail, a first electric slide rail, a driving part, and a displacement sensor. The upper detection component is composed of a claw mechanism, a third electric slide rail, a driving part, and a coupling shaft. The lower detection component is composed of a claw mechanism, a displacement sensor, and a second electric slide rail.

[0008] Preferably, the driving part includes a housing, a third motor, a fourth electric slide rail, and a slide rod. The third motor is fixedly installed inside the housing. A support rod is rotatably connected to the inner wall of the housing. The same ends of the support rod and the output shaft of the third motor both rotatably penetrate through the side wall of the housing and are fixedly connected with second gears. The two opposite second gears are meshed and connected. The rod body of the support rod is fixedly connected to the tail end of the third electric slide rail. The third motor drives the third electric slide rail to rotate with the tail end as the rotation point, changing the direction of the end face of the piston rod of the third electric slide rail. Activity slots are opened at the upper and lower ends of the housing to guide the rotation and switching of the piston rod of the third electric slide rail between the terminal positions. A camera is installed at the tail end of the third electric slide rail.

[0009] Preferably, the jaw mechanism includes a casing and a second motor. The output shaft of the second motor is fixedly connected to a first gear. Both sides of the first gear are meshed and connected with a first rack and a second rack. The first rack and the second rack are both slidably connected to the inner wall of the casing. A second chute is formed in the side wall of the casing close to the first gear. Both the first rack and the second rack are fixedly connected with pinch rollers. The connection ends of the two pinch rollers and the first rack and the second rack are slidably connected in the second chute. The second motor drives the two pinch rollers to approach each other to clamp the edge of the conveyor belt.

[0010] Preferably, the guide block of the fourth electric slide rail is connected with a slide rod. A first brush is arranged at the upper end of the slide rod. A gap is left at the connection between the housing of the electric slide rail and the slide rod for storing the first brush. A part of the rod body of the slide rod can be accommodated in the housing of the fourth electric slide rail. A second brush is arranged at the upper end of the housing of the fourth electric slide rail. When the first brush extends outside, its height is flush with that of the second brush.

[0011] Preferably, one end of the slide rod is fixedly connected to a displacement sensor arranged on the upper detection component. A first chute is formed at the detection end of the displacement sensor. The housing is slidably connected to the first chute, and the end of the detection rod of the displacement sensor is fixed on the housing.

[0012] Preferably, the tail end of the fourth electric slide rail is rotatably connected to the upper end of a coupling shaft. A first motor is installed on the coupling shaft. The output shaft of the first motor is connected to the connection between the fourth electric slide rail and the coupling shaft. The first motor drives the fourth electric slide rail to rotate to adjust the orientation of the jaw mechanism.

[0013] Preferably, the tail end of the second electric slide rail is installed inside the machine box. The output shaft of the second electric slide rail is slidably connected to a displacement sensor arranged on the lower detection component. The displacement sensor is connected to the jaw mechanism.

[0014] Preferably, a base is fixed to the bottom of the frame. A weighing platform is arranged in the central area of the base. When measuring the material loss rate, the upper detection component is located directly below the lower detection component. The long axes of the third electric slide rails are perpendicular to and intersect with the long axis of the fourth electric slide rail. Driven by the fourth electric slide rail, the third electric slide rails on both sides are brought into contact. Under the traction of the screw conveyor, the spilled materials are moved to the weighing platform by the first brush and the second brush for calculation.

[0015] When measuring the material loss rate, the upper detection component is located directly below the lower detection component, and the long axis of the third electric slide rail is vertically intersecting with the long axis of the fourth electric slide rail; driven by the fourth electric slide rail, the third electric slide rails on both sides are brought into contact, and the screw conveyor drives the first bristles and the second bristles to translate, moving the spilled material to the weighing platform, and the weighing platform measures the weight of the leaked material per unit time;

[0016] Calculate the total weight of the material conveyed by the belt conveyor based on the designed conveying capacity and operating time of the belt conveyor; calculate the ratio of the weight of the leaked material per unit time to the total weight of the material conveyed by the belt conveyor, and multiply the ratio by 100% to obtain the material loss rate.

[0017] Preferably, when the upper detection component is located directly above the lower detection component, the pinch rollers of the upper detection component and the lower detection component are both clamped on the conveyor belt, the displacement frequency of the pinch rollers is recorded by the displacement sensor, and the conveyor belt tension is calculated based on the belt span length, the total mass of the belt per unit length and the carried object, and the displacement frequency of the pinch rollers.

[0018] Compared with the prior art, this belt conveyor detection device has the following beneficial effects:

[0019] First, when detecting the upper and lower tensions of the conveyor belt, when the conveyed material is fed onto the conveyor belt in a falling manner, the vibration frequency of the conveyor belt itself under the action of the conveyed material can be detected, and the tension of the conveyor belt can be detected, so as to judge the quality of the conveyor belt. At the same time, the tension values of the load-bearing section and the non-load-bearing section on one side of the conveyor belt can be detected. If there is a problem of too large a difference, the imbalance of the tension force will cause the belt to deviate, slip or wear excessively, indicating that there is a risk of skew or failure in the tensioning system. By synchronously detecting the tensions of the load-bearing section and the non-load-bearing section, engineers can accurately diagnose the state of the tensioning system, load distribution, structural defects and aging risks, and formulate targeted maintenance strategies.

[0020] Second, when the upper detection component is arranged directly below the lower detection component, the pinch rollers of the lower detection component still detect the vibration frequency of the conveyor belt. At the same time, detecting the vibration frequencies of the non-load-bearing section of the conveyor belt and the rack can achieve more comprehensive fault coverage, reduce missed detections, and improve the accuracy of diagnosis. Thus, more targeted maintenance measures can be taken. If the vibration frequency of the bracket is abnormal, it can be distinguished whether it is a fault of the conveyor belt itself or an external mechanical interference. By detecting the vibration frequencies of the bottom belt and the bracket at the same time, it is possible to achieve a leap from single-fault diagnosis to system health management.

[0021] 3. The pinch rollers in the upper and lower detection components clamp the side edges of the conveyor belt. While detecting the conveyor belt tension, they can also detect the flatness of the conveyor belt. Driven by the screw conveyor, the upper and lower pinch rollers arranged horizontally move along the conveyor belt. According to the signals transmitted by the displacement sensors, the flatness of the conveyor belt is judged. The abnormal flatness of the conveyor belt is often a precursor to problems such as belt tearing, degumming, and bulging, which can detect early damage in advance. In addition, the local protrusions of the conveyor belt are likely to cause material spillage. By preventing material spillage and equipment damage, through the technical means of multi-functional detection, the efficient, safe, and low-cost foundation for the later operation and use of the belt conveyor is realized.

[0022] 4. The sliding rod is extended outward through the fourth electric slide rail. The first bristles and the second bristles on both sides are laid on the base. Driven by the screw conveyor, the fallen objects are concentrated and collected on the weighing platform. Through the above-mentioned publicly derived formula, the material loss rate of the belt conveyor body is calculated. If the value exceeds the expected value, maintenance is carried out in a timely manner to ensure the transmission efficiency of the equipment.

[0023] Other advantages, objectives, and features of the present invention will be described to some extent in the subsequent description, and to some extent, will be obvious to those skilled in the art based on the study of the following text, or can be taught from the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a schematic diagram of the cooperation of various components for the tension test of the load-bearing section and non-load-bearing section of the conveyor belt of the present invention;

[0025] Figure 2 It is a schematic diagram of the structure of the belt conveyor body of the present invention;

[0026] Figure 3 For the present invention Figure 2 Schematic diagram of the structure method at position A;

[0027] Figure 4 It is a schematic diagram of the structure of the upper and lower detection components of the present invention;

[0028] Figure 5 It is a schematic diagram of the structure of the displacement sensor of the present invention;

[0029] Figure 6 It is a schematic diagram of the structure of the fourth electric slide rail, the first bristles, and the second bristles of the present invention;

[0030] Figure 7 It is a schematic diagram of the structure of the pinch roller of the present invention;

[0031] Figure 8 For the present invention Figure 7 Enlarged schematic diagram of the structure at position B;

[0032] Figure 9 Structural schematic diagram of the driving part of the present invention;

[0033] Figure 10 Structural schematic diagram of the fourth motor of the present invention;

[0034] Figure 11 Schematic diagram of the cooperation of various components when the present invention detects the material loss rate of the belt conveyor body;

[0035] Figure 12 Schematic diagram of the cooperation of various components when the present invention conducts frequency comparison detection on the conveyor belt and the rack.

[0036] In the figure:

[0037] 1. Belt conveyor body; 101. Conveyor belt; 102. Rack; 2. Machine box; 3. Coupling shaft; 4. Upper detection component; 401. Fourth electric slide rail; 402. Slide bar; 403. First brush hair; 404. Second brush hair; 5. Lower detection component; 6. Screw conveyor; 7. Base; 8. Weighing platform; 9. Claw mechanism; 901. Machine shell; 902. Pinch roller; 903. Second motor; 904. Second chute; 905. First rack; 906. First gear; 907. Second rack; 10. Driving part; 1001. Shell; 1002. Third motor; 1003. Activity slot; 1004. Camera; 1005. Support rod; 1006. Second gear; 11. First motor; 12. First electric slide rail; 13. Transmission rod; 14. Displacement sensor; 1401. First chute; 15. Second electric slide rail; 16. Third electric slide rail; 17. Fourth motor. Specific embodiments

[0038] 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.

[0039] Please refer to Figures 1 to 12, the present invention provides the following embodiments: A belt conveyor detection device, including a belt conveyor body 1, the belt conveyor body 1 having a conveyor belt 101 and a frame 102. On both sides of the frame 102, screw conveyors 6 are installed. On the slide rails of the screw conveyors 6, machine boxes 2 are installed. The screw conveyors 6 drive the machine boxes 2 to translate on the slide rails. On the machine boxes 2, a lower detection component 5 for detecting the tension of the non - carrying section of the conveyor belt 101 and an upper detection component 4 for detecting the tension of the carrying section of the conveyor belt 101, the vibration frequency of the frame 102, and the material loss rate of the belt conveyor body 1 are provided. Inside the machine box 2, a fourth motor 17 and a transmission rod 13 connected to the upper detection component 4 are provided. The fourth motor 17 is connected to the transmission rod 13. The fourth motor 17 drives the upper detection component 4 to rotate, changing the relative position between the upper detection component 4 and the lower detection component 5. When the upper detection component 4 is directly above the lower detection component 5, the upper detection component 4 and the lower detection component 5 respectively detect the tension of the carrying section and the non - carrying section of the conveyor belt 101. When the upper detection component 4 is directly below the lower detection component 5, the upper detection component 4 and the lower detection component 5 respectively detect the vibration frequency of the frame 102 and the non - carrying section vibration frequency of the conveyor belt 101. When the upper detection component 4 is below the lower detection component 5 and the heads of the lower detection components 5 on both sides are butted, the material loss rate of the belt conveyor body 1 is detected.

[0040] In this embodiment, it further includes a claw mechanism 9, a third electric slide rail 16, a first electric slide rail 12, a driving part 10, and a displacement sensor 14. The upper detection component is composed of a claw mechanism 9, a third electric slide rail 16, a driving part 10, and a coupling shaft 3. The lower detection component 5 is composed of a claw mechanism 9, a displacement sensor 14, and a second electric slide rail 15. The component models used by the equipment are repeated, and there are multifunctional detection means. When producing, the product models purchased by the workshop are reduced, which is convenient for storage and production, and also provides convenience for later maintenance.

[0041] In this embodiment, the driving part 10 includes a housing 1001, a third motor 1002, a fourth electric slide rail 401 and a slide bar 402. The third motor 1002 is fixedly installed inside the housing 1001. A support rod 1005 is rotatably connected to the inner wall of the housing 1001. The same ends of the support rod 1005 and the output shaft of the third motor 1002 both rotatably penetrate through the side wall of the housing 1001 and are fixedly connected with second gears 1006. Two opposite second gears 1006 are meshed and connected. The rod body of the support rod 1005 is fixedly connected to the tail end of the third electric slide rail 16. The third motor 1002 drives the third electric slide rail 16 to rotate with the tail end as the rotation point, changing the facing direction of the piston rod end of the third electric slide rail 16. Activity slots 1003 are opened at the upper and lower ends of the housing 1001 for guiding the rotation and switching of the piston rod of the third electric slide rail 16 between terminal positions. A camera 1004 is installed at the tail end of the third electric slide rail 16. By driving the rotation of the second gear 1006 by the third motor 1002, the rotation of the support rod 1005 is driven, thereby adjusting the facing angle of the claw mechanism 9 to meet different detection requirements of the device.

[0042] In this embodiment, the claw mechanism 9 includes a housing 901 and a second motor 903. The output shaft of the second motor 903 is fixedly connected with a first gear 906. Both sides of the first gear 906 are meshed and connected with a first rack 905 and a second rack 907 respectively. The first rack 905 and the second rack 907 are both slidably connected to the inner wall of the housing 901. A second chute 904 is opened on the side wall of the housing 901 near the first gear 906. Clamping rollers 902 are fixedly connected to the first rack 905 and the second rack 907 respectively. The connection ends of the two clamping rollers 902 with the first rack 905 and the second rack 907 are slidably connected in the second chute 904. The second motor 903 drives the two clamping rollers 902 to approach each other to clamp the edge of the conveyor belt 101. According to the characteristic that the first rack 905 and the second rack 907 are meshed with the first gear 906, the rotation direction of the second motor 903 can be adjusted to change the distance between the two clamping rollers 902 to meet the clamping requirements for different widths of the conveyor belt 101 or the frame 102.

[0043] In this embodiment, a slide bar 402 is connected to the guide block of the fourth electric slide rail 401. A first brush 403 is provided at the upper end of the slide bar 402. A gap is left at the connection between the housing of the fourth electric slide rail 401 and the slide bar 402 for storing the first brush 403. A part of the rod body of the slide bar 402 can be received in the housing of the fourth electric slide rail 401. A second brush 404 is provided at the upper end of the housing of the fourth electric slide rail 401. When the first brush 403 extends outside, its height is flush with that of the second brush 404. The provided gap is used to store the first brush 403, which is more convenient during storage. When the slide bar 402 moves outside the fourth electric slide rail 401, due to the characteristics of the nylon material, the first brush 403 returns to Figure 10 the state shown, for subsequent cleaning of spilled objects and detection.

[0044] In this embodiment, one end of the slide bar 402 is fixedly connected to a displacement sensor 14 provided on the upper detection component 4. A first sliding groove 1401 is provided at the detection end of the displacement sensor 14. The housing 1001 is slidably connected to the first sliding groove 1401, and the end of the detection rod of the displacement sensor 14 is fixed to the housing 1001. The model of the displacement sensor 14 can adopt a metal glass glaze displacement sensor, and its characteristics of high temperature resistance and humidity resistance are suitable for the transportation workshop.

[0045] In this embodiment, the tail end of the fourth electric slide rail 401 is rotatably connected to the upper end of the coupling shaft 3. A first motor 11 is installed on the coupling shaft 3. The output shaft of the first motor 11 is connected at the connection between the fourth electric slide rail 401 and the coupling shaft 3. The first motor 11 drives the fourth electric slide rail 401 to rotate to adjust the orientation of the claw mechanism 9. The tail end of the second electric slide rail 15 is installed inside the machine box 2. The output shaft of the second electric slide rail 15 is slidably connected to a displacement sensor 14 provided on the lower detection component 5. The displacement sensor 14 is connected to the claw mechanism 9. After the two claw mechanisms 9 arranged vertically are aligned, through the action of the second motor 903, both clamping rollers 902 are clamped on the conveyor belt 101 to perform the detection process.

[0046] In this embodiment, a base 7 is fixed to the bottom of the frame 102. A weighing platform 8 is provided at the central area of the base 7. When measuring the material loss rate, the upper detection component 4 is located directly below the lower detection component 5. The long axis of the third electric slide rail 16 is perpendicular to and intersects with the long axis of the fourth electric slide rail 401. Driven by the fourth electric slide rail 401, the two sides of the third electric slide rail 16 are brought into contact. Under the traction of the screw conveyor 6, the spilled materials are moved to the weighing platform 8 through the first brush 403 and the second brush 404 for calculation. The formula is as follows:

[0047] Material Loss Rate= × 100%;

[0048] Wherein, is the weight of the leaked material per unit time, is the total weight of the materials designed to be conveyed by the belt conveyor per unit time.

[0049] In this embodiment, when the upper detection component 4 is directly above the lower detection component 5, the pinch rollers 902 of the upper detection component 4 and the lower detection component 5 are both clamped on the conveyor belt 101. The displacement frequency of the pinch roller 902 is recorded by the displacement sensor 14, and the conveyor belt 101 tension is calculated by the following formula:

[0050] T = 4m ;

[0051] Wherein, T is the belt tension, m is the mass of the belt per unit length and the carried materials, that is, in the belt conveyor system, the sum of the mass of the belt itself per unit length (such as per meter) and the mass of the materials it carries, L is the belt span length, and f is the belt vibration frequency;

[0052] L is derived by the following formula:

[0053] L = ;

[0054] Wherein, a is the center distance between the two pulleys of the belt conveyor body 1, and are the effective diameters of the two pulleys respectively.

[0055] Working principle: During the daily operation of the belt conveyor, the third electric slide rail 16 and the claw mechanism 9 connected thereto are accommodated on both sides of the conveyor belt 101. When detection is required, the claw mechanism 9 is commanded to contact the equipment by sending an instruction.

[0056] When detecting the upper and lower tensions of the conveyor belt 101, first start the first electric slide rail 12 (at this time, the distance between the two pinch rollers 902 should be greater than the thickness of the conveyor belt 101), so that the two pinch rollers 902 move to the non-carrying section of the conveyor belt 101. Start the third motor 1002 to make the long axis of the third electric slide rail 16 parallel to the tilted slope of the conveyor belt 101. After the two claw mechanisms 9 arranged above and below are aligned, under the action of the second motor 903, both pinch rollers 902 are clamped on the conveyor belt 101. The front end of the pinch roller 902 is rotatably arranged, so that the rotating part contacting the moving conveyor belt 101 will not affect the conveyor belt 101. And because the upper third electric slide rail 16 is connected to the first sliding groove 1401 of the upper displacement sensor 14, and the lower housing 1001 is connected to the first sliding groove 1401 of the lower displacement sensor 14, when the conveyed object hits the conveyor belt 101 in a falling manner for feeding and conveying, the vibration frequency of the conveyor belt 101 itself can be detected under the action of the conveyed object. Combining the formula T = 4m disclosed above formula, the tension of the conveyor belt 101 is detected to judge the quality of the conveyor belt 101, and the tension values of the carrying section and the non-carrying section on one side of the conveyor belt 101 can be detected at the same time. If there is a problem of too large a difference, the imbalance of the tension force will cause the belt to deviate, slip or wear excessively, indicating that there is a risk of skew or failure in the tensioning system. By synchronously detecting the tensions of the carrying section and the non-carrying section, engineers can accurately diagnose the state of the tensioning system, load distribution, structural defects and aging risks, and formulate targeted maintenance strategies.

[0057] When the upper detection component 4 is arranged directly below the lower detection component 5, the pinch roller 902 of the lower detection component 5 still detects the vibration frequency of the conveyor belt 101, and the pinch roller 902 of the upper detection component 4 is as Figure 12 shown, the pinch roller 902 clamps the frame 102 to detect the vibration frequency of the frame 102 during conveying. At the same time, detecting the vibration frequencies of the non-carrying section of the conveyor belt 101 and the frame 102 can achieve more comprehensive fault coverage, reduce missed detections, and improve the accuracy of diagnosis. Thus, more targeted maintenance measures can be taken. Abnormal vibration frequencies of the support (such as high-frequency vibration or resonance) are usually related to mechanical structure problems such as bearing wear, idler jamming, and base loosening. By comparing the vibration characteristics of the two (such as the periodic peaks in the time-domain waveform and the harmonic distribution in the frequency domain), it is possible to distinguish whether it is a fault of the conveyor belt 101 itself or an external mechanical interference. Detecting the vibration frequencies of the bottom belt and the support at the same time can achieve the leap from single-fault diagnosis to system health management.

[0058] The pinch rollers 902 in the upper detection component 4 and the lower detection component 5 clamp the side edges of the conveyor belt 101 to detect the tension of the conveyor belt 101 and can also detect the flatness of the conveyor belt 101. Driven by the screw conveyor 6, the vertically arranged pinch rollers 902 translate along the conveyor belt 101. According to the signals transmitted by the displacement sensor 14, the flatness of the conveyor belt 101 is judged. The abnormal flatness of the conveyor belt 101 is often a precursor to problems such as belt tearing, degumming, and bulging, which can detect early damage in advance. Moreover, the local protrusions of the conveyor belt 101 are likely to cause the spilling of materials. By preventing the spilling of materials and equipment damage, through the technical means of multi-functional detection, the efficient, safe, and low-cost foundation for the later operation and use of the belt conveyor is realized.

[0059] As Figure 11 shown, the fourth electric slide rail 401 extends the slide bar 402 outwards. The first bristles 403 and the second bristles 404 on both sides are both laid on the base 7. Driven by the screw conveyor 6, the fallen objects are centrally collected on the weighing platform 8. The material loss rate of the belt conveyor body 1 is deduced through the above-mentioned disclosed formula. If the value exceeds the expected value, maintenance is carried out in time to ensure the transmission efficiency of the equipment.

[0060] For those skilled in the art, it is obvious that the present invention is not limited to the details of the above-described exemplary embodiments, and the present invention can be implemented in other specific forms without departing from the spirit or basic characteristics of the present invention. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present invention is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present invention.

Claims

1. A belt conveyor detection device, including a belt conveyor body, the belt conveyor body having a conveyor belt and a frame, characterized in that: Screw conveyors are installed on both sides of the frame. A machine box is installed on the slide rail of the screw conveyor. The screw conveyor drives the machine box to translate on the slide rail. A lower detection component for detecting the tension of the non - load - bearing section of the conveyor belt and an upper detection component for detecting the tension of the load - bearing section of the conveyor belt, the vibration frequency of the frame, and the material loss rate of the belt conveyor body are provided on the machine box. A fourth motor and a transmission rod connected to the upper detection component are arranged in the machine box. The fourth motor is connected to the transmission rod. The fourth motor drives the upper detection component to rotate, changing the relative position between the upper detection component and the lower detection component. When the upper detection component is directly above the lower detection component, the upper detection component and the lower detection component respectively detect the tension of the load - bearing section and the non - load - bearing section of the conveyor belt. When the upper detection component is directly below the lower detection component, the upper detection component and the lower detection component respectively detect the vibration frequency of the frame and the vibration frequency of the non - load - bearing section of the conveyor belt. When the upper detection component is below the lower detection component and the heads of the lower detection components on both sides are butted, the material loss rate of the belt conveyor body is detected;It further includes a claw mechanism, a third electric slide rail, a first electric slide rail, a driving part and a displacement sensor. The upper detection component consists of a claw mechanism, a third electric slide rail, a driving part and a coupling shaft. The lower detection component consists of a claw mechanism, a displacement sensor and a second electric slide rail. The driving part includes a housing, a third motor, a fourth electric slide rail and a slide rod. The third motor is fixedly installed inside the housing. A support rod is rotatably connected to the inner wall of the housing, and the same end of the support rod and the output shaft of the third motor both rotatably penetrate through the side wall of the housing and are fixedly connected with second gears. The two opposite second gears are meshingly connected. The rod body of the support rod is fixedly connected to the tail end of the third electric slide rail. The third motor drives the third electric slide rail to rotate with the tail end as the rotation point, changing the facing direction of the piston rod end of the third electric slide rail. Activity slots are opened at the upper and lower ends of the housing for guiding the rotation and switching of the piston rod of the third electric slide rail between the terminal positions. A camera is installed at the tail end of the third electric slide rail. The claw mechanism includes a casing and a second motor. The output shaft of the second motor is fixedly connected with a first gear. Both sides of the first gear are meshingly connected with a first rack and a second rack. The first rack and the second rack are both slidably connected to the inner wall of the casing. A second chute is opened on the side wall of the casing close to the first gear. The first rack and the second rack are both fixedly connected with clamping rollers. The connection ends of the two clamping rollers with the first rack and the second rack are slidably connected in the second chute. The second motor drives the two clamping rollers to approach each other to clamp the edge of the conveyor belt. The guide block of the fourth electric slide rail is connected with a slide rod. A first brush is arranged at the upper end of the slide rod. A gap is left at the connection between the housing of the electric slide rail and the slide rod for storing the first brush. A part of the rod body of the slide rod can be received in the housing of the fourth electric slide rail. A second brush is arranged at the upper end of the housing of the fourth electric slide rail. When the first brush extends outside, its height is flush with that of the second brush. One end of the slide rod is fixedly connected to the displacement sensor arranged on the upper detection component. A first chute is opened at the detection end of the displacement sensor. The housing is slidably connected to the first chute, and the end of the detection rod of the displacement sensor is fixed on the housing. The tail end of the fourth electric slide rail is rotatably connected to the upper end of the coupling shaft. A first motor is installed on the coupling shaft. The output shaft of the first motor is connected at the connection between the fourth electric slide rail and the coupling shaft. The first motor drives the fourth electric slide rail to rotate to adjust the orientation of the claw mechanism. The tail end of the second electric slide rail is installed inside the machine box. The output shaft of the second electric slide rail is slidably connected to the displacement sensor arranged on the lower detection component. The displacement sensor is connected with the claw mechanism.; 2. The belt conveyor detection device according to claim 1, characterized in that: A base is fixed to the bottom of the frame. A weighing platform is provided in the central area of the base. When measuring the material loss rate, the upper detection component is directly below the lower detection component, and the long axis of the third electric slide rail is perpendicular to and intersects with the long axis of the fourth electric slide rail. Driven by the fourth electric slide rail, the third electric slide rails on both sides are brought into contact. The screw conveyor drives the first brush bristles and the second brush bristles to translate, moving the spilled material onto the weighing platform. The weighing platform measures the weight of the leaked material per unit time. The total weight of the material conveyed by the belt conveyor is calculated based on the designed conveying capacity and operating time of the belt conveyor; Calculate the ratio of the weight of the leaked material per unit time to the total weight of the material conveyed by the belt conveyor, and multiply the ratio by 100% to obtain the material loss rate.

3. The belt conveyor detection device according to claim 2, characterized in that: When the upper detection component is directly above the lower detection component, the pinch rollers of the upper detection component and the lower detection component are both clamped on the conveyor belt. The displacement frequency of the pinch rollers is recorded by a displacement sensor, and the conveyor belt tension is calculated based on the belt span length, the total mass of the belt per unit length and the carried object, and the displacement frequency of the pinch rollers.

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