Rubber Belt Damage Detection Device

Abstract

Provide a rubber belt damage detection device with high detection accuracy and capable of real-time detection. 【Solution means】A rubber belt damage detection device including a detection rod 1, a spring 2, a trigger switch assembly, and a base 4. The detection rod is rotatably fixed to the base and is inclined in a vertical plane, and the inclination direction is the same as the movement direction of the rubber belt. One end of the spring is fixed to the base, and 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 and connected to the rubber belt, and the torque applied to the detection rod by the spring is in the opposite direction to the torque applied by the rubber belt. 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 to detect the vibration of the detection rod. The base is arranged under the return-side rubber belt. The present invention can timely feedback the damage of the rubber belt.

Description

Technical Field

[0001] The present invention relates to the technical field of rubber belt detection devices, and particularly to rubber belt damage detection devices.

Background Art

[0002] Belt conveyors are widely used in industries such as docks, coal mines, and metallurgy as continuous transport machines for high-speed, large-capacity, and long-distance transportation. Rubber belts are important components for the traction and transportation of belt conveyors. Their surfaces are mainly made of rubber and are divided into canvas cores, wire rope cores, etc. according to the usage scenarios. Whether the entire conveyor can operate stably and safely depends on the condition of the rubber belt.

[0003] Currently, the detection of rubber belts mainly relies on patrol inspections and human judgment based on camera images, which are prone to misjudgment and missed judgment. If there are damages such as dents, bulges, and penetrations on the rubber belt and it is not stopped and removed immediately, the damage will worsen due to friction with sweepers and lower support rollers, etc. The rubber belt may break, resulting in material leakage, equipment damage, and in severe cases, damage to the machine frame. The entire rubber belt may become scrap, and the personal safety of the operator may also be threatened. Therefore, in order to reduce the impact of rubber belt damage, a real-time rubber belt damage detection technology with high precision and high stability is urgently needed.

Summary of the Invention

Problems to be Solved by the Invention

[0004] The object of the present invention is to provide a rubber belt damage detection device that overcomes the above-mentioned drawbacks of the prior art, such as low detection accuracy and occurrence of missed judgment and misjudgment.

[0005] The object of the present invention can be achieved by the following technical solutions.

[0006] 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, inclined in a vertical plane, and the inclination direction is the same as the movement direction of the rubber belt. One end of the spring is fixed to the base, and 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 and connected to the rubber belt, and the torque applied to the detection rod by the spring is in the opposite direction to the torque applied by the rubber belt. 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 to detect the vibration of the detection rod. The base is disposed under the return-side rubber belt.

[0007] Preferably, the number of the detection rods is plural, each detection rod is distributed at equal intervals and can operate independently, and the interval between the detection rods located at both ends of the detection device is larger than the width of the rubber belt.

[0008] Preferably, the detection rods are provided in a plurality of rows, each row is parallel to each other, and the adjacent two rows of detection rods are provided alternately.

[0009] Preferably, the device further includes an indicator light 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 includes a timer for recording the duration of the trigger switch assembly.

[0011] Preferably, the trigger switch assembly includes a first microswitch and a second microswitch provided on the rotation path of the detection rod, and the first microswitch and the second microswitch are located on both sides of the detection rod.

[0012] Preferably, the trigger switch assembly is a contactor with damping resistance.

[0013] Preferably, the detection rod is a nylon rod, and an arc chamfered portion is provided at one end of the nylon rod that contacts the rubber belt.

[0014] Preferably, on one side of the device, a camera is provided which is connected to the trigger switch assembly and photographs the position of the activated trigger switch assembly on the rubber belt.

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

[0016] Compared with the prior art, the present invention has the following advantages.

[0017] (1) In this solution, during the running of the rubber belt, the upper end of the detection rod abuts against the straight portion of the return-side belt. When damage such as a dent or bulge occurs on the rubber belt, the inclination angle of the detection rod changes according to the damage position of the rubber belt, and the lower end of the detection rod activates the trigger switch assembly to sound an alarm. When a dent occurs, the spring applies torque to the lower end of the detection rod, the upper end of the detection rod enters the dent, activating the trigger switch assembly, and when a bulge occurs, the spring resets the detection rod. When the detection rod contacts the straight portion of the return-side rubber belt and the damage position on the rubber belt contacts the detection rod, the detection rod rotates due to the damage or the action of the spring, activating the trigger switch assembly at the opposite end to sound an alarm about the damage to the rubber belt and prompt the operator to take action. Since the detection rod always abuts against the rubber belt during running, it can sound an alarm immediately when there is damage. At the same time, the spring accelerates the reaction to the dent damage of the detection rod, improves the detection accuracy, and can be completed with only a basic mechanical structure, so the timeliness, reliability, and stability of the detection are high, avoiding subsequent damage caused by damage to the rubber belt. (2) In this solution, a plurality of sets of detection devices are arranged side by side at the lower end of the rubber belt to cover the entire width of the rubber belt, thereby ensuring comprehensive detection and the reliability of the detection results. At the same time, the distance between the detection rods of the detection devices at both ends is larger than the width of the rubber belt, and edge damage and displacement of the rubber belt can also be detected. At the same time, by arranging the detection devices in multiple rows, the occurrence of malfunction can be reduced, and the accuracy of the detection structure can be further improved.

Brief Description of the Drawings

[0018]

Figure 1

Figure 2

Explanation of Reference Signs

[0019] 1. Detection rod, 2. Spring, 31. First microswitch, 32. Second microswitch, 4. Base.

Embodiments for Carrying Out the Invention

[0020] To make the objectives, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to 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, not all of the embodiments. The components of the embodiments of the present invention generally described and illustrated in the accompanying drawings may be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed present invention, but rather is intended to represent selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative efforts are included within the protection scope of the present invention.

[0022] In the following figures, the same reference numerals and characters represent the same items. Therefore, it should be noted that once an item is defined in a figure, subsequent figures do not require further definition and explanation.

[0023] In the description of the present invention, the directions and positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", and "outer" are based on the directions and positional relationships shown in the drawings, or the directions and positional relationships in which the product of the present invention is usually placed when in use. This is only for the purpose of explaining the present invention and simplifying the explanation, and does not indicate or imply that the device or element mentioned must have a specific orientation and must be constructed and operate in a specific orientation. Therefore, this cannot be understood as a limitation of the present invention.

[0024] In addition, the terms "first" and "second" are used only for the convenience of explanation and cannot be understood as indicating or implying relative importance or implicitly indicating the amount of technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality" means two or more unless otherwise clearly limited.

[0025] Also, terms such as "horizontal" and "vertical" do not mean that the member needs to be completely horizontal or suspended, but may be slightly inclined. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, and it may be slightly inclined.

Embodiment

[0026] As shown in Fig. 1, this embodiment provides a rubber belt damage detection device including a detection rod 1, a spring 2, a trigger switch assembly, and a base 4. The detection rod 1 is rotatably fixed to the base 4, is inclined in a vertical plane, and the inclination direction is the same as the running direction of the rubber belt. One end of the spring 2 is fixed to 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 is in contact with and connected to the rubber belt, and the torque applied to the detection rod 1 by the spring 2 is in the opposite direction to the torque applied by the rubber belt. The other end of the detection rod 1 is in contact with and connected to the trigger switch assembly. The trigger switch assembly is fixed to the base 4 and is used to detect the vibration of the detection rod 1. The base 4 is disposed under the rubber belt on the return side.

[0027] The operating principle is as follows. During the running of the rubber belt, the upper end of the detection rod 1 abuts against the straight part of the belt on the return side. When damage such as a dent or bulge occurs in the rubber belt, the inclination angle of the detection rod 1 changes according to the damage position of the rubber belt, and the lower end of the detection rod 1 activates the trigger switch assembly to sound an alarm. When a dent occurs, the spring 2 applies torque to the lower end of the detection rod 1, the upper end of the detection rod 1 enters the dent, and the trigger switch assembly is activated. When a bulge occurs, the spring 2 resets the detection rod 1.

[0028] In this solution, during the running of the rubber belt, the upper end of the detection rod 1 abuts against the straight part of the belt on the return side. When damage such as a dent or bulge occurs in the rubber belt, the inclination angle of the detection rod 1 changes according to the damage position of the rubber belt, and the lower end of the detection rod 1 activates the trigger switch assembly to sound an alarm. When a dent occurs, the spring 2 applies torque to the lower end of the detection rod 1, the upper end of the detection rod 1 enters the dent, and the trigger switch assembly is activated. When a bulge occurs, the spring 2 resets the detection rod 1.

[0029] The detection rod 1 contacts the straight part of the return rubber belt. When the damaged position on the rubber belt contacts the detection rod 1, the detection rod 1 rotates due to the damage or the action of the spring 2, activating the trigger switch assembly at the opposite end to sound an alarm about the damage to the rubber belt and prompt the operator to take action. Since the detection rod 1 always contacts the rubber belt during operation, an alarm can be issued immediately when there is damage. At the same time, the spring accelerates the reaction to the dent damage of the detection rod 1, improves the detection accuracy, and can be completed with only a basic mechanical structure, so the timeliness, reliability, and stability of the detection are high, avoiding subsequent damage caused by damage to the rubber belt.

[0030] In a preferred embodiment, as shown in FIG. 2, the number of detection rods is plural, each detection rod is distributed at equal intervals, can operate independently, and the interval between the detection rods located at both ends of the detection device is larger than the width of the rubber belt. The detection rods may be provided in multiple rows, each row is parallel to each other, and the adjacent two rows of detection rods are arranged staggeredly. It can be understood that the closer the distance between the nylon rods, the higher the detection accuracy, and there is no particular limitation on the interval between the detection rods.

[0031] A plurality of sets of detection devices are arranged side by side at the lower end of the rubber belt to cover the entire width of the rubber belt, ensuring comprehensive detection and the reliability of the detection results. At the same time, the distance between the detection rods 1 of the detection devices at both ends is larger than the width of the rubber belt, and edge damage to the rubber belt and displacement of the rubber belt can also be detected. At the same time, arranging the detection devices in multiple rows can reduce the occurrence of malfunction and further improve the accuracy of the detection structure.

[0032] In a preferred embodiment, the device further includes an indicator light for displaying the position and number of the activated trigger switch assembly, which is connected to the trigger switch assembly. The trigger switch assembly further includes a timer for recording the duration of the trigger switch assembly. An alarm is connected to the trigger switch assembly. Optionally, the trigger switch assembly is a contactor with a damping resistor.

[0033] Replace the microswitch with a contactor with damping resistance, judge the rotation angle of the nylon rod based on the generated current waveform diagram, obtain the swelling or depression depth of the rubber belt, the indicator lights correspond one-to-one with the detection devices, and their positions also correspond. From the number and positions of the lit indicator lights, the number of contactors that give an alarm simultaneously can be known, and the duration after each detection device is triggered is obtained from the timer, which helps to judge the type and degree of rubber belt damage. At the same time, based on the vibration depth and degree of different rubber belt parts, the thickness of the rubber on the surface of the rubber belt with wire ropes and the flatness of the internal wire ropes can be judged, and thereby the service life of this rubber belt part can be judged.

[0034] Specifically, the trigger switch assembly includes a first microswitch 31 and a second microswitch 32 provided on the rotation path of the detection rod 1, and the first microswitch 31 and the second microswitch 32 are located on both sides of the detection rod 1. The detection rod 1 is a nylon rod, and an arc-shaped chamfered portion is provided at one end of the nylon rod that contacts the rubber belt, and the diameter of the nylon rod is 1 cm.

[0035] On the other hand, on one side of the device, a camera is provided that is connected to the trigger switch assembly and is used to photograph the position of the activated trigger switch assembly on the rubber belt. The camera is mounted on the back side of the device. When an alarm occurs, the camera is activated to photograph the operating position to confirm the damage, thereby improving the safety and reliability of the device.

[0036] In this embodiment, a detector is installed near the cleaner in the straight part of the belt on the return side of the belt conveyor. If the distance between the support roller brackets on both sides of the installation position is too large, another set of roller brackets can be installed to reduce the vibration of the belt at the detection position and improve the detection accuracy. Connect the detection device system to the coal conveying program control system. According to the actual situation on site, rotate the housing until the nylon rod touches the lower surface of the belt, and make its tail part enter between the contacts of the contactors on both sides. Then start the equipment and observe whether the equipment operates normally or whether an alarm is issued. If it is normal, it may be used. If an alarm is issued, make corrections until the device operates normally.

[0037] The damage to the rubber belt during use can be roughly divided into two situations. 1. The rubber on the surface is worn, hit by heavy objects, or stabbed by sharp objects, resulting in dents on the rubber belt. 2. Bulges, warping, and peeling occur at the joint, and it appears in the form of the rubber belt bulging. When dents or bulges occur, the head of the nylon rod vibrates, the tail touches the contactor, and an alarm sounds.

[0038] In this embodiment, by detecting the state of the belt in real time through a plurality of contacts, problems with the belt can be discovered in a timely manner, the deterioration of accidents can be avoided, and judgment omissions caused by manual monitoring can be solved. The contactor attached to the device is a contact type microswitch. When damage occurs, the nylon rod touches the contact, an alarm sounds, and the severity of the damage can be judged based on the duration of the alarm. The microswitch can also be replaced with a contactor with damping resistance, and the rotation angle and rotation time of the nylon rod can be judged by current to identify the cause of the failure. The service life of the wire rope rubber belt can also be judged based on the normal current situation. When the cover width of the nylon rod is slightly wider than the belt width, belt deviation can also be detected. It has a wide application range and high practicality.

[0039] At the same time, when an alarm occurs, take a video with a replacement camera and send it to the on-duty operator for confirmation to reduce misjudgment, eliminate malfunction of the equipment, and improve the stability of equipment operation. The accuracy and real-time performance of belt conveyor monitoring are improved, the safety of equipment operation is improved, the risk of major accidents is reduced, and the workload of operators and maintenance personnel is reduced.

[0040] The preferred embodiments of the present invention have been described in detail above. It should be understood by those skilled in the art that many modifications and changes can be made based on the concept of the present invention without creative efforts. Therefore, all technical solutions that can be obtained by those skilled in the art through logical analysis, inference, or limited experiments based on the concept of the present invention and based on the prior art should be within the protection scope defined by the claims.

Claims

1. A rubber belt damage detection device, comprising a detection rod (1), a spring (2), a trigger switch assembly, and a base (4), wherein the detection rod (1) is rotatably fixed to the base (4) and is inclined in a vertical plane, the inclination direction being the same as the movement direction of the rubber belt, one end of the spring (2) is fixed to the base (4), the other end is connected to the detection rod (1), and the spring is in a compressed state, one end of the detection rod (1) is in contact with and connected to the rubber belt, the torque applied to the detection rod (1) by the spring (2) is in the opposite direction to the torque applied by the rubber belt, the other end of the detection rod (1) is in contact with and connected to the trigger switch assembly, the trigger switch assembly is fixed to the base (4) and is used to detect the vibration of the detection rod (1), and the base (4) is disposed under the return-side rubber belt. A rubber belt damage detection device characterized by this.

2. The number of the detection rods (1) is plural, each detection rod (1) is distributed at equal intervals and can operate independently, and the interval between the detection rods (1) located at both ends of the detection device is larger than the width of the rubber belt. The rubber belt damage detection device according to Claim 1, characterized by this.

3. The detection rods (1) are provided in a plurality of rows, each row is parallel to each other, and two adjacent rows of detection rods (1) are provided alternately. The rubber belt damage detection device according to Claim 2, characterized by this.

4. The device further includes an indicator light connected to the trigger switch assembly for displaying the position and number of the activated trigger switch assembly. The rubber belt damage detection device according to Claim 2, characterized by this.

5. The trigger switch assembly further includes a timer for recording the duration of the trigger switch assembly. The rubber belt damage detection device according to Claim 2, characterized by this.

6. The trigger switch assembly includes a first microswitch (31) and a second microswitch (32) provided on the rotation path of the detection rod (1), and the first microswitch (31) and the second microswitch (32) are located on both sides of the detection rod (1). The rubber belt damage detection device according to Claim 1, characterized by this.

7. The rubber belt damage detection device according to claim 1, wherein the trigger switch assembly is a contactor with damping resistance.

8. The rubber belt damage detection device according to claim 1, wherein the detection rod (1) is a nylon rod, and an arc-shaped chamfered portion is provided at an end of the nylon rod that contacts the rubber belt.

9. The rubber belt damage detection device according to claim 1, wherein a camera for photographing the position of the activated trigger switch assembly on the rubber belt is provided on one side of the device and is connected to the trigger switch assembly.

10. The rubber belt damage detection device according to claim 1, wherein an alarm is connected to the trigger switch assembly.

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