Rubber belt damage detection device

Abstract

The present invention relates to a rubber belt damage detection device, comprising a detection rod, a spring, a trigger switch assembly and a base. The detection rod is rotatably fixed to the base, the detection rod being inclined within the vertical plane, and the inclination direction being the same as the moving direction of a rubber belt. One end of the spring is fixed to the base while the other end is connected to the detection rod; and the spring is in a compressed state. One end of the detection rod is in contact with and connected to the rubber belt; the direction of a torque applied by the spring to the detection rod is opposite to that of the torque applied by the rubber belt; and the other end of the detection rod is in contact with and connected to the trigger switch assembly. The trigger switch assembly is fixed to the base and is used for detecting vibrations of the detection rod. The base is arranged below the return rubber belt. Compared with the prior art, the present invention has the advantages of high detection accuracy, real-time detection, timely damage feedback and the like.

Description

A belt damage detection device TECHNICAL FIELD

[0001] The present application relates to the technical field of belt detection equipment, in particular to a belt damage detection device. BACKGROUND

[0002] The belt conveyor is a continuous conveying machine with fast speed, large capacity and long distance, which has been widely used in wharf, coal mine transportation, metallurgy and other industries. The belt is a key component for traction and transportation of the belt conveyor, and the surface is mainly rubber. According to different use scenarios, it can be divided into canvas core and steel wire rope core, and the state of the belt determines whether the whole conveyor can run stably and safely.

[0003] At present, the detection of the belt mainly relies on manual inspection and camera pictures for judgment, which is prone to misjudgment and omission. When the belt is damaged, such as indentation, bulge, and penetration, if it cannot be immediately stopped and cleaned, the damage will be aggravated after passing through the sweeper and the lower roller, resulting in through tearing of the belt, material leakage, equipment damage, and even damage to the rack, causing the whole belt to be scrapped, and even threatening the personal safety of the workers. Therefore, in order to reduce the impact of belt damage, there is an urgent need for a real-time belt damage detection technology with high accuracy and high stability. SUMMARY

[0004] The purpose of the present application is to overcome the defects of low detection accuracy, omission and misjudgment in the prior art, and to provide a belt damage detection device.

[0005] The purpose of the present application can be achieved by the following technical solutions:

[0006] A belt damage detection device, comprising a detection rod, a spring, a trigger switch assembly and a base; the detection rod is rotatably fixed on the base, the detection rod is inclinedly arranged in a vertical plane, and the inclination direction is the same as the running direction of the belt; one end of the spring is fixed on the base, the other end is connected to the detection rod and is in a compressed state; one end of the detection rod is in contact with the belt, the torque exerted by the spring on the detection rod is opposite to the torque direction exerted by the belt, the other end of the detection rod is in contact with the trigger switch assembly, the trigger switch assembly is fixed on the base and used for detecting the vibration of the detection rod, and the base is arranged below the return belt.

[0007] Preferably, the number of detection rods is multiple, each detection rod is distributed at equal intervals, each detection rod can act independently, and the spacing between the detection rods located at both ends of the detection device is greater than the width of the belt.

[0008] Preferably, the detection rod is provided with multiple rows, each row is parallel to each other, and the detection rods of adjacent two rows are staggered.

[0009] Preferably, the device further comprises a display lamp connected to the trigger switch assembly for displaying the position and number of the activated trigger switch assembly.

[0010] Preferably, the trigger switch assembly further comprises a timer for recording the duration of the trigger switch assembly.

[0011] Preferably, the trigger switch assembly comprises a first micro switch and a second micro switch arranged on the rotating path of the detection rod, and the first micro switch and the second micro switch are located on both sides of the detection rod.

[0012] Preferably, the trigger switch assembly is a damper type contactor.

[0013] Preferably, the detection rod is a nylon rod, and one end of the nylon rod in contact with the adhesive tape is provided with a circular arc chamfer.

[0014] Preferably, one side of the device is provided with a camera connected to the trigger switch assembly for shooting the position of the activated trigger switch assembly on the adhesive tape.

[0015] Preferably, the trigger switch assembly is connected with an alarm.

[0016] Compared with the prior art, the present application has the following advantages:

[0017] (1) In the running process of the adhesive tape, the upper end of the detection rod abuts against the flat section of the return adhesive tape. When the adhesive tape has a damage such as a depression or a bulge, the damage position of the adhesive tape changes the inclination angle of the detection rod, so that the lower end of the detection rod activates the trigger switch assembly to alarm.

[0018] By contacting the detection rod with the flat section of the return adhesive tape, when the damage position on the adhesive tape contacts the detection rod, the detection rod will rotate under the action of the damage or the spring, activate the trigger switch assembly at the other end, alarm the damage of the adhesive tape, and remind the staff to handle it. The detection rod abuts against at all times during the running process of the adhesive tape, so that it can alarm the damage at the first time. Meanwhile, the spring can accelerate the response of the detection rod to the depression damage, improve the detection accuracy, and only the basic mechanical structure is completed, so that the timeliness, reliability and stability of the detection are higher, and the subsequent harm caused by the damage of the adhesive tape is avoided.

[0019] (2) the scheme in the lower end of the adhesive tape and side by side arrangement of multiple sets of detection device, covering the entire width of the adhesive tape range, to ensure the comprehensive detection and reliability of detection results, at the same time, the detection rod of the detection device located at both ends is greater than the width of the adhesive tape, which can also detect the edge wire damage and deviation of the adhesive tape. At the same time, the detection device is placed in multiple rows, which can reduce the occurrence of false action and further improve the accuracy of the detection structure. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1 is a structure schematic diagram of the detection device provided by the application;

[0021] Fig. 2 is a structure schematic diagram of the detection device provided by the application arranged transversely;

[0022] In the figure: 1, detection rod, 2, spring, 31, first micro switch, 32, second micro switch, 4, base. DETAILED DESCRIPTION

[0023] In order to make the purpose, technical scheme and advantages of the embodiments of the application more clear, the technical scheme in the embodiments of the application will be described clearly and completely below with reference to the drawings in the embodiments of the application. Obviously, the described embodiments are part of the embodiments of the application, not all. The components of the embodiments of the application described and shown in the drawings can be arranged and designed in various different configurations.

[0024] Therefore, the following detailed description of the embodiments of the application provided in the drawings is not intended to limit the scope of the claimed application, but only represents selected embodiments of the application. Based on the embodiments in the application, all other embodiments obtained by those of ordinary skill in the art without creative labor are within the scope of protection of the application.

[0025] It should be noted that: similar numbers and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0026] In the description of the application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship of the product when it is used, which is only for the convenience of describing the application and simplifying the description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation of the application.

[0027] It should be noted that the terms "first", "second" are used only for descriptive purpose, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0028] In addition, the terms "horizontal", "vertical" and the like do not mean that the components must be absolutely horizontal or vertical, but can be slightly inclined. As "horizontal" only means that its direction is more horizontal relative to "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0029] Embodiment 1

[0030] As shown in Figure 1, the present embodiment provides a kind of adhesive tape damage detection device, including detection rod 1, spring 2, trigger switch component and base 4;Detection rod 1 can be rotatably fixed on base 4, detection rod 1 is arranged in vertical plane and is inclined, and the inclination direction is the same as the running direction of adhesive tape, one end of spring 2 is fixed on base 4, the other end is connected to detection rod 1, and is in compression state;One end of detection rod 1 is connected to adhesive tape, the torque exerted by spring 2 to detection rod 1 is opposite to the torque direction exerted by adhesive tape, the other end of detection rod 1 is connected to trigger switch component, trigger switch component is fixed on base 4, for detecting the vibration of detection rod 1, base 4 is arranged below return adhesive tape.

[0031] Working principle: during the operation of adhesive tape, the upper end of detection rod 1 abuts against the straight section of return adhesive tape, when damage occurs on adhesive tape, such as recess or convex, the damage position of adhesive tape changes the inclination angle of detection rod 1, so that the lower end of detection rod 1 starts trigger switch component and alarms;If it is recess, spring 2 can exert torque to the lower end of detection rod 1, so that its upper end enters the recess and starts trigger switch component;If it is convex, detection rod 1 is reset by spring 2.

[0032] The present scheme in the operation of adhesive tape, the upper end of detection rod 1 abuts against the straight section of return adhesive tape, when damage occurs on adhesive tape, such as recess or convex, the damage position of adhesive tape changes the inclination angle of detection rod 1, so that the lower end of detection rod 1 starts trigger switch component and alarms;If it is recess, spring 2 can exert torque to the lower end of detection rod 1, so that its upper end enters the recess and starts trigger switch component;If it is convex, detection rod 1 is reset by spring 2.

[0033] When the damaged position on the belt contacts the detection rod 1, the detection rod 1 rotates under the action of the damage or the spring 2, activates the trigger switch assembly at the other end, alarms the damage of the belt, and reminds the staff to handle it. The detection rod 1 is in contact at all times during the operation of the belt, so that the damage can be alarmed in the first time, and the spring can accelerate the reaction of the detection rod 1 to the concave damage, improve the accuracy of detection, and only the basic mechanical structure is completed, the timeliness, reliability and stability of detection are higher, and the subsequent harm caused by the damage of the belt is avoided.

[0034] Preferably, as shown in FIG. 2, the number of detection rods is multiple, each detection rod is distributed at equal intervals, each detection rod can act independently, and the distance between the detection rods at both ends of the detection device is greater than the width of the belt. The detection rods can also be arranged in multiple rows, each row is parallel to each other, and the detection rods of adjacent two rows are staggered. It can be understood that the smaller the gap of the nylon rod, the higher the detection accuracy, and the distance between the detection rods is not limited.

[0035] A plurality of detection devices are arranged side by side at the lower end of the belt, covering the entire width range of the belt, ensuring the comprehensiveness of detection and the reliability of the detection result, and the distance between the detection rods 1 of the detection devices at both ends is greater than the width of the belt, which can also detect the damage of the edge wire of the belt and the deviation of the belt. At the same time, the detection devices are arranged in multiple rows, which can reduce the occurrence of false action and further improve the accuracy of the detection structure.

[0036] Preferably, the device further comprises a display lamp connected to the trigger switch assembly for displaying the position and number of the activated trigger switch assembly. The trigger switch assembly further comprises a timer for recording the duration of the trigger switch assembly. The trigger switch assembly is connected with an alarm. Optionally, the trigger switch assembly is a damper type contactor.

[0037] The micro switch is replaced by a damper type contactor, the rotation angle of the nylon rod is judged according to the current waveform generated by the damper type contactor, and the depth of the convex or concave of the belt is obtained; the display lamp corresponds to the detection device one by one, and the position is also corresponding, the number of contactors that produce alarm at the same time can be known through the number and position of the display lamp that is lighted, the duration of each detection device after triggering is obtained through the timer, which assists to determine the type and severity of the damage of the belt. At the same time, the thickness of the rubber on the surface of the steel wire rope belt and the flatness of the internal steel wire rope can be judged through the depth and jumping degree of different belt sections, so as to judge the service life of the belt section.

[0038] Specifically, the trigger switch assembly includes a first micro switch 31 and a second micro switch 32 arranged on the rotating path of the detection rod 1, and the first micro switch 31 and the second micro switch 32 are located on both sides of the detection rod 1. The detection rod 1 is a nylon rod, one end of which in contact with the rubber belt is provided with a circular arc chamfer, and the diameter of the nylon rod is 1 cm.

[0039] On the other hand, one side of the device is provided with a camera connected to the trigger switch assembly for shooting the position on the rubber belt where the trigger switch assembly is started. The camera is installed on the rear side of the device, and when the alarm occurs, the camera is started to shoot the action position, thereby verifying the damage condition, so that the device is more safe and reliable.

[0040] In this embodiment, the detector is installed near the sweeper at the straight section of the return belt of the belt conveyor. If the distance between the roller supports on both sides of the installation position is too large, a set of roller supports can be installed to reduce the belt jumping at the detection position and improve the detection accuracy. The detection device system is connected to the coal conveying program control system.

[0041] According to the actual situation on site, the shell is rotated to the position where the nylon rod contacts the surface of the belt, and the tail thereof is in contact between the contact points of the two contactors. The device is started, and whether it operates normally and whether it alarms are observed. If it is normal, it is put into use. If it alarms, it is corrected until the device operates normally.

[0042] During use, the damage to the rubber belt can be roughly divided into two cases: 1. Surface rubber wear, heavy damage, sharp objects piercing, etc. which are manifested as belt depression; 2. Bulging, lifting and peeling at the joint, etc. which are manifested as belt protrusion. When depression or protrusion occurs, it will cause vibration of the head of the nylon rod, thereby causing the tail to contact the contactor and issuing an alarm.

[0043] In this embodiment, the belt condition is detected in real time through multiple contact points, so that the rubber belt problem can be found in time to avoid the deterioration of the accident and solve the missed judgment caused by manual monitoring. The contactor installed in the device is a contact type micro switch, which issues an alarm when the nylon rod contacts the contact point when damage occurs. The severity of the damage can be judged by the duration of the alarm. The micro switch can also be replaced with a damping type contactor to determine the fault cause by judging the rotation angle and rotation time of the nylon rod based on the current. The service life of the steel wire rope rubber belt can also be determined based on the current. If the coverage width of the nylon rod is slightly larger than the width of the belt, the belt deviation can also be detected, which has a wide range of application and high practicality.

[0044] At the same time, the installed camera can take pictures when the alarm occurs, which are confirmed by the on-duty personnel to reduce misjudgment, eliminate false actions of the device, and improve the stability of the device operation. The accuracy and real-time performance of the belt conveyor monitoring are improved, the safety of the device operation is improved, the risk of major accidents is reduced, and the workload of the operation and maintenance personnel is reduced.

[0045] The preferred embodiments of the present application have been described above in detail. It should be understood that modifications and variations to the preferred embodiments could be made by those skilled in the art in light of the teachings above. It is therefore contemplated that the application can encompass other variations and modifications that fall within the scope of the claims.

Claims

1. A tape damage detection device, characterized in that, The device includes a detection rod (1), a spring (2), a trigger switch assembly, and a base (4). The detection rod (1) is rotatably fixed on the base (4). The detection rod (1) is inclined in a vertical plane, and the inclination direction is the same as the running direction of the conveyor belt. One end of the spring (2) is fixed on the base (4), and the other end is connected to the detection rod (1) and is in a compressed state. One end of the detection rod (1) contacts and connects to the conveyor belt. The torque applied by the spring (2) to the detection rod (1) is opposite to the torque applied by the conveyor belt. The other end of the detection rod (1) contacts and connects to the trigger switch assembly. The trigger switch assembly is fixed on the base (4) and is used to detect the vibration of the detection rod (1). The base (4) is located below the return conveyor belt.

2. The tape damage detection device according to claim 1, characterized in that, The number of detection rods (1) is multiple, and each detection rod (1) is distributed at equal intervals. Each detection rod (1) can operate independently. The distance between the detection rods (1) located at both ends of the detection device is greater than the width of the tape.

3. The tape damage detection device according to claim 2, characterized in that, The detection rod (1) is arranged in multiple rows, with each row parallel to the others and the detection rods (1) in adjacent rows being staggered.

4. The tape damage detection device according to claim 2, characterized in that, The device also includes an indicator light connected to a trigger switch assembly for displaying the position and number of activated trigger switch assemblies.

5. The tape damage detection device according to claim 2, characterized in that, The trigger switch component also includes a timer for recording the duration of the trigger switch component.

6. The tape damage detection device according to claim 1, characterized in that, The trigger switch assembly includes a first micro switch (31) and a second micro switch (32) disposed on the rotation path of the detection rod (1), with the first micro switch (31) and the second micro switch (32) located on both sides of the detection rod (1).

7. The tape damage detection device according to claim 1, characterized in that, The trigger switch assembly is a damped contactor.

8. The tape damage detection device according to claim 1, characterized in that, The detection rod (1) is a nylon rod, and the end of the nylon rod that contacts the tape has a rounded chamfer.

9. The tape damage detection device according to claim 1, characterized in that, The device has a camera on one side, which is connected to a trigger switch assembly and is used to capture the position of the trigger switch assembly on the tape.

10. The tape damage detection device according to claim 1, characterized in that, The trigger switch assembly is connected to an alarm.

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