Device for quickly detecting belt deviation, tearing and slipping

Abstract

The application relates to the technical field of mechanical transmission, and discloses a device for rapidly detecting belt deviation, tearing and slipping, a first motor is bolt-connected to one side of a supporting frame and is provided with a sliding groove a, a lead screw is outwardly provided in the first motor, a sliding rod is fixed at the connecting position of the supporting frame, a fixed block is connected to the other end of the lead screw and the sliding rod, the lead screw is rotationally connected with the fixed block, the sliding rod is fixedly connected with the fixed block, the supporting frame is rotationally connected with a sliding block, and the sliding rod is slidingly connected in the sliding block. The device for rapidly detecting belt deviation, tearing and slipping is connected through cooperation between various components, so that whether the light source penetrating through the first transmission belt can be received by the light source receiver is determined, whether tearing and wearing of the belt occurs is judged, and whether the first transmission belt slips is measured and calculated through measurement of the LED lamp and statistical calculation of the processor, so that normal operation of the whole conveying device is maintained.

Description

Technical Field

[0001] This invention relates to the field of mechanical transmission technology, specifically to a device for quickly detecting belt misalignment, tearing, and slippage. Background Technology

[0002] Belt drives are mechanical transmissions that utilize a flexible belt tensioned on pulleys to transmit motion or power. Depending on the transmission principle, there are friction belt drives, which rely on the friction between the belt and pulleys, and synchronous belt drives, which rely on the meshing of teeth on the belt and pulleys. Based on their application, belt drives can be categorized into general industrial belts, automotive belts, agricultural machinery belts, and household appliance belts. Friction belts, based on their cross-sectional shape, are further divided into flat belts, V-belts (also known as triangular belts), and special belts (multi-ribbed belts, synchronous belts), etc.

[0003] However, since belts often transport heavy goods, and the wear and tear on the belts varies depending on the type of goods being transported, problems such as belt misalignment, tearing, or slippage frequently occur, causing unnecessary losses to the transportation work and the safety of goods and personnel.

[0004] Existing technologies detect belt misalignment by installing a mechanical lever on the side of the belt, using the misaligned belt to push the lever to close an electrical contact, sending a protection signal; detecting belt tearing by placing a closed metal coil inside the belt and using a probe with the coil to detect whether the metal coil is closed; and detecting belt slippage by directly rubbing a speed measuring engine against the belt to test the belt speed. However, the friction between the moving belt and the lever can damage both the belt and the lever; the induction signal from the induction coil is weak and easily affected by external electromagnetic signals; belt slippage can, in turn, affect the speed measuring engine's detection results; and the three devices are independent of each other, which is not conducive to the detection and maintenance of the device.

[0005] In CN104163331A, a method for rapid handling of electrical faults in a long-distance belt conveyor includes the following steps: (1) Install an infrared temperature monitoring device at the head of the belt conveyor to monitor the temperature T of the head roller. When the temperature is within the preset temperature range T1, output a signal, input it into the PLC system through the intermediate relay in the field operation box, and display it on the host computer; (2) Install belt slip switches at the head and tail of the belt conveyor. The signals of the two slip switches correspond to the two relays in the field operation box, and then form a slip signal through the auxiliary contacts of the series relays to input it into the PLC system and display it on the host computer. This method can directly identify the fault through the circuit, and the host computer can immediately alarm and display the fault information, so that maintenance personnel can quickly determine the fault point and carry out maintenance. However, since the belt needs to transport a variety of goods with different weights and shapes, the accuracy of the detection results will be greatly reduced when transporting heavy goods that cause the belt to bend or when transporting magnetic goods.

[0006] To address the aforementioned problems, the inventors have provided a device for quickly detecting belt misalignment, tearing, and slippage. Summary of the Invention

[0007] In view of the shortcomings of existing technologies, such as susceptibility to external interference, inaccurate detection results after prolonged use, and the independence of the three detection devices, this invention provides a device for quickly detecting belt misalignment, tearing, and slippage. It has the advantages of simple structure, low cost, rapid detection of belt misalignment, tearing, and slippage faults, and the ability to assist in belt reset.

[0008] To achieve the above objectives, the present invention provides the following technical solution: a device for rapidly detecting belt misalignment, tearing, and slippage, comprising a support frame, a first motor, a lead screw, a slide rod, a fixed block, a sliding block, a sliding groove a, a sliding plate, a sliding groove b, a second transmission belt, an infrared emitter a, an infrared emitter b, a rotating rod, a second motor, an infrared emitter c, a meshing column, an LED light, a light source receiver, a drive shaft, a third motor, a first rotating wheel, a first transmission belt, a fixed plate, a second rotating wheel, and a processor.

[0009] The positions and connections of the above structures are as follows:

[0010] A first motor is bolted to one side of the support frame, and a sliding groove a is provided. A lead screw is provided inside the first motor and a slide rod is fixed at the connection with the support frame. A fixing block is connected to the other end of the lead screw and the slide rod, and the lead screw and the fixing block are rotatably connected. The slide rod and the fixing block are fixedly connected. The support frame is rotatably connected to the sliding block, and the slide rod is slidably connected inside the sliding block. A sliding plate is provided inside the sliding block, and the sliding plate is slidably connected to the sliding groove a and enters between the two support frames by penetrating the sliding groove a.

[0011] A sliding groove b is provided on one side of the sliding plate, and the sliding groove b engages and slides with a slider provided on the same side of the support frame. An infrared emitter a and an infrared emitter b are fixedly provided on the other side of the sliding plate, and a rotating rod is rotatably connected between the infrared emitter a and the infrared emitter b. A second motor is provided inside the rotating rod, and the output shaft of the second motor is fixedly connected to it. An infrared emitter c is fixedly connected to the other side of the rotating rod, and an engaging column is fixedly provided on the other side of the infrared emitter c. The engaging column slides in the sliding groove provided in the support frame.

[0012] Preferably, the bottom and top corners of the same side of infrared emitters a and b are beveled, with the side of infrared emitter a with the light source tilting downwards and the side of infrared emitter b with the light source tilting upwards. This allows infrared emitters a and b to emit upwards and downwards, while simultaneously detecting whether there is any offset above or below the first transmission belt.

[0013] Preferably, the support frame has crossbeams at both the upper and lower ends, with an LED light bolted to the upper crossbeam, and the LED light source facing vertically upwards. This allows the LED light source to emit upward light.

[0014] Preferably, the outer casing of the LED lamp extends upwards to the bottom of the first drive belt, confining the light emitted by the LED lamp within an internal area. This causes all the light emitted by the LED lamp to converge into a rectangular area, illuminating the first drive belt.

[0015] Preferably, the support frame has a rotating groove on the side opposite to where the first motor is located. A drive shaft is provided between the support frames, with one end rotatably connected to the support frame and the other end penetrating the other side of the support frame and reaching the outside of the support frame. A second rotating wheel is fixedly connected to the center of the drive shaft. A driven shaft is provided on the other side of the support frame and rotatably connected to the support frame. A first transmission belt is rotatably connected between the drive shaft and the driven shaft. A third motor is located at the bottom of the first transmission belt. A first rotating wheel is located at one end of the third motor, and a fixing plate is bolted to the other end. The other end of the fixing plate is located on the support frame. A second transmission belt is rotatably connected between the first rotating wheel and the second rotating wheel.

[0016] Preferably, the drive shaft and the driven shaft have the same diameter, and the fixing plate is made of a rigid elastic steel. The support frame is bolted to the processor on the same side where the second transmission belt is provided.

[0017] Preferably, a light source receiver is bolted between the support frames and inside the first transmission belt. The light source receiver is located directly above the LED light, with its sensing side pointing vertically downwards. This ensures that the receiving range of the light source receiver completely covers the entire emitted light source of LED 17, thereby enhancing the accuracy of detection.

[0018] Preferably, the first transmission belt is opaque, and during normal operation, there are certain gaps between its sides and the support frame. This prevents the light source receiver from receiving light under normal conditions, thus indicating when the first transmission belt has torn or worn.

[0019] Beneficial effects:

[0020] 1. This rapid detection device for belt misalignment, tearing, and slippage utilizes a support frame, a first motor, a lead screw, a sliding rod, a fixed block, a sliding block, a sliding groove a, a sliding plate, a sliding groove b, infrared emitters a and b, a rotating rod, a second motor, infrared emitters c, and a meshing column. When the first transmission belt is driven to slip, LED lights and light source receivers mounted on both sides of the belt at the bottom emit light and receive light, respectively. By detecting whether the light source receivers can receive light penetrating the first transmission belt, the device determines whether the belt has torn or worn. Through LED light measurements and processor calculations, it calculates whether the first transmission belt has slipped, thus maintaining the normal operation of the entire transmission device.

[0021] 2. This rapid detection device for belt misalignment, tearing, and slippage utilizes the coordinated connection between LED lights, a light source receiver, a drive shaft, a third motor, a first rotating wheel, a first transmission belt, a fixed plate, a second rotating wheel, a processor, and a second transmission belt. This allows the first motor to drive a sliding block to slide on a lead screw, while the second motor drives a rotating rod to rotate. Combined with linearly sliding infrared emitters a and b, it provides comprehensive monitoring of both sides of the first transmission belt. When the first transmission belt deviates, it can immediately detect the misalignment and transmit the information to the processor. The processor then alerts the operator to the belt slippage. The sliding plate slides along one side of the first transmission belt, bringing it back to its normal operating position as much as possible. Attached Figure Description

[0022] Figure 1 This is a schematic diagram showing the connection of a support frame, a first motor, a lead screw, a slide rod, a fixing block, a sliding block, a sliding groove a, and a third motor in a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0023] Figure 2 This is a schematic diagram showing the connection of a sliding block, sliding plate, sliding groove b, infrared emitter a, infrared emitter b, rotating rod, second motor, infrared emitter c, and meshing column in a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0024] Figure 3 This is a schematic diagram showing the connection between the support frame, LED light, and third motor of a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0025] Figure 4 This is a schematic diagram showing the connection of the support frame, rotating rod, and light source receiver of a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0026] Figure 5 This is a schematic diagram showing the connection of the support frame, sliding groove a, LED light, light source receiver, drive shaft, third motor, first transmission belt and fixing plate of a rapid detection device for belt misalignment, tearing and slippage proposed in this invention.

[0027] Figure 6 This is a schematic diagram showing the connection between the support frame, fixing block, and processor of a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0028] Figure 7 This is an enlarged schematic diagram of part A of a rapid detection device for belt misalignment, tearing, and slippage proposed in this invention.

[0029] In the diagram: 1. Support frame; 2. First motor; 3. Lead screw; 4. Slide rod; 5. Fixed block; 6. Sliding block; 7. Sliding groove a; 8. Sliding plate; 9. Sliding groove b; 10. Second transmission belt; 11. Infrared emitter a; 12. Infrared emitter b; 13. Rotating rod; 14. Second motor; 15. Infrared emitter c; 16. Engaging column; 17. LED light; 18. Light source receiver; 19. Drive shaft; 20. Third motor; 21. First rotating wheel; 22. First transmission belt; 23. Fixed plate; 24. Second rotating wheel; 25. Processor. Detailed Implementation

[0030] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0031] Example 1:

[0032] Please see Figure 1-2 A device for quickly detecting belt misalignment, tearing, and slippage includes a support frame 1, a first motor 2, a lead screw 3, a slide rod 4, a fixed block 5, a sliding block 6, a sliding groove a7, a sliding plate 8, a sliding groove b9, a second transmission belt 10, an infrared emitter a11, an infrared emitter b12, a rotating rod 13, a second motor 14, an infrared emitter c15, a meshing column 16, an LED light 17, a light source receiver 18, a drive shaft 19, a third motor 20, a first rotating wheel 21, a first transmission belt 22, a fixed plate 23, a second rotating wheel 24, and a processor 25.

[0033] The positions and connections of the above structures are as follows:

[0034] A first motor 2 is bolted to one side of the support frame 1 and a sliding groove a7 is provided. A lead screw 3 is provided inside the first motor 2 and a slide rod 4 is fixed at the connection with the support frame 1. A fixing block 5 is connected to the other end of the lead screw 3 and the slide rod 4. The lead screw 3 and the fixing block 5 are rotatably connected, while the slide rod 4 and the fixing block 5 are fixedly connected. A sliding block 6 is rotatably connected to the support frame 1, and the slide rod 4 is slidably connected inside the sliding block 6. A sliding plate 8 is provided inside the sliding block 6. The sliding plate 8 is slidably connected to the sliding groove a7 and enters between the two support frames 1 through the sliding groove a7.

[0035] A sliding groove b9 is provided on one side of the sliding plate 8, and the sliding groove b9 is engaged and slidably connected with the slider provided on the same side of the support frame 1. An infrared emitter a11 and an infrared emitter b12 are fixedly provided on the other side of the sliding plate 8, and a rotating rod 13 is rotatably connected between the infrared emitter a11 and the infrared emitter b12. A second motor 14 is provided inside the rotating rod 13, and the output shaft of the second motor 14 is fixedly connected. An infrared emitter c15 is fixedly connected to the other side of the rotating rod 13, and an engaging post 16 is fixedly provided on the other side of the infrared emitter c15. The engaging post 16 slides in the sliding groove provided in the support frame 1.

[0036] Working process and principle: When the third motor 20 is working normally, it is connected to the first rotating wheel 21 and the second rotating wheel 24 via the second transmission belt 10, thereby driving the drive shaft 19 to rotate. In conjunction with the driven shaft, it drives the first transmission belt 22 to begin sliding. When the first transmission belt 22 slides, the first motor 2 also starts working and drives the lead screw 3 to rotate, thereby causing the sliding block 6, which is meshed with it, to begin sliding on the lead screw 3. By opening the slide rod 4, the sliding block 6 is prevented from being deflected on the lead screw 3 due to factors such as gravity when sliding on the lead screw 3. When the sliding block 6 slides, the sliding plate 8, which is fixedly connected to one side, slides in the sliding groove a7 opened in the support frame 1, so that its top is in the gap between the support frame 1 and the first transmission belt 22. The sliding groove b9 engages with the slider opened in the support frame 1, which also makes the sliding plate 8 stable when sliding and able to keep in contact with the side of the support frame 1. In the middle, the infrared emitter a11 and infrared emitter b12 fixed on the sliding plate 8 emit infrared rays downward and upward respectively, and the processor 25 monitors in real time whether the first transmission belt 22 has deviated. When the sliding block 6 slides, the second motor 14 starts to work, driving the infrared emitter c15 fixed on the rotating rod 13 to start rotating and continuously monitoring the first transmission belt 22 in all directions. The second transmission belt 10 helps to keep the rotation of the entire rotating rod 13 and the infrared emitter c15 stable in the sliding groove opened in the infrared emitter a11. When the first drive belt 22 is detected to be off-center, infrared transmitters a11 and b12 and engagement post 16 send information to processor 25. Upon receiving the information, processor 25 displays a warning message about the first drive belt 22 being off-center on the screen and issues an alarm to alert the staff.

[0037] Example 2:

[0038] Please see Figure 3-7 The bottom and top corners of the same side of infrared emitters a11 and b12 are beveled. The side of infrared emitter a11 with the light source is tilted downwards, and the side of infrared emitter b12 with the light source is tilted upwards.

[0039] A crossbeam is provided at the upper and lower ends of the support frame 1. The upper crossbeam is bolted to an LED light 17, and the light source of the LED light 17 is vertically upward.

[0040] The outer casing of the LED lamp 17 extends upward to the bottom of the first drive belt 22, confining the light source emitted by the LED lamp 17 within its internal range.

[0041] A rotating groove is provided on the other side of the support frame 1 where the first motor 2 is located. A drive shaft 19 is provided between the support frames 1 and the support frame 1. One end of the drive shaft 19 is rotatably connected to the support frame 1, and the other end passes through the support frame 1 on the other side and comes to the outside of the support frame 1. A second rotating wheel 24 is fixedly connected at the center. A driven shaft is provided on the other side of the support frame 1 and is rotatably connected to the support frame 1. A first transmission belt 22 is rotatably connected between the drive shaft 19 and the driven shaft. A third motor 20 is provided at the bottom of the first transmission belt 22. A first rotating wheel 21 is provided at one end of the third motor 20, and a fixing plate 23 is bolted to the other end. The other end of the fixing plate 23 is provided on the support frame 1. A second transmission belt 10 is rotatably connected between the first rotating wheel 21 and the second rotating wheel 24.

[0042] The drive shaft 19 and the driven shaft have the same diameter, and the fixing plate 23 is made of rigid elastic steel. The support frame 1 has a processor 25 bolted to the same side where the second transmission belt 10 is provided.

[0043] A light source receiver 18 is bolted between the support frame 1 and inside the first transmission belt 22. The light source receiver 18 is located directly above the LED lamp 17 and the sensing side is vertically downward.

[0044] The first transmission belt 22 is opaque, and during normal operation, there is a certain gap between its two sides and the support frame 1.

[0045] Working process and principle: When the first drive belt 22 rotates, the LED light 17 and the light source receiver 18 also start working simultaneously. The LED light 17 emits light upwards through the internally installed lamp beads, and the outer shell around the perimeter restricts the outwardly radiating light to a rectangular area inside the shell. The length of this area is equal to the width of the first drive belt 22, and its shape and size are exactly the same as the sensing area at the bottom of the light source receiver 18. When the first drive belt 22 is working normally, due to its opaque nature, when the light emitted by the LED light 17 shines on the bottom of the first drive belt 22, the light cannot penetrate the first drive belt 22, so the light source receiver 18 does not receive the light. This indicates that the first drive belt 22 has not experienced any wear, tear, or other faults. During this process, the LED light 17 detects the transmission speed of the first drive belt 22 by emitting light and sends the result to the processor 25. The processor 25 then determines whether the first drive belt 22 is slipping based on the rotational speed provided by the third motor 20.

[0046] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A device for rapidly detecting belt misalignment, tearing, and slippage, comprising a support frame (1), characterized in that: The support frame (1) is bolted to one side with a first motor (2) and has a sliding groove a (7). The first motor (2) has a lead screw (3) extending outward inside and a slide rod (4) fixed at the connection with the support frame (1). The other end of the lead screw (3) and the slide rod (4) is connected to a fixing block (5), and the lead screw (3) and the fixing block (5) are rotatably connected. The slide rod (4) and the fixing block (5) are fixedly connected. The support frame (1) is rotatably connected to a sliding block (6), and the slide rod (4) is slidably connected inside the sliding block (6). The sliding plate (8) is opened on the inner side of the sliding block (6), and the sliding plate (8) is slidably connected to the sliding groove a (7) and enters between the two support frames (1) through the sliding groove a (7). A sliding groove b (9) is provided on one side of the sliding plate (8), and the sliding groove b (9) is engaged and slidably connected with the slider provided on the same side of the support frame (1). An infrared emitter a (11) and an infrared emitter b (12) are fixedly provided on the other side of the sliding plate (8), and a rotating rod (13) is rotatably connected between the infrared emitter a (11) and the infrared emitter b (12). A second motor (14) is provided inside the rotating rod (13), and the output shaft of the second motor (14) is fixedly connected. An infrared emitter c (15) is fixedly connected on the other side of the rotating rod (13), and an engaging column (16) is fixedly provided on the other side of the infrared emitter c (15). The engaging column (16) slides in the groove provided in the support frame (1).

2. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 1, characterized in that: The bottom and top corners of the same side of infrared emitter a (11) and infrared emitter b (12) are beveled. The side of infrared emitter a (11) with the light source is tilted downward, and the side of infrared emitter b (12) with the light source is tilted upward.

3. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 1, characterized in that: The support frame (1) has crossbeams at the upper and lower ends respectively. The upper crossbeam is bolted to an LED light (17), and the light source of the LED light (17) is vertically upward.

4. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 3, characterized in that: The outer casing of the LED lamp (17) extends upward to the bottom of the first transmission belt (22), confining the light source emitted by the LED lamp (17) within the internal range.

5. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 1, characterized in that: A rotating groove is provided on the other side of the support frame (1) where the first motor (2) is located. An active shaft (19) is provided between the support frame (1) and the support frame (1). One end of the active shaft (19) is rotatably connected to the support frame (1), and the other end penetrates the support frame (1) on the other side and comes to the outside of the support frame (1). A second rotating wheel (24) is fixedly connected at the center. A driven shaft is provided on the other side of the support frame (1) and rotatably connected to the support frame (1). A first transmission belt (22) is rotatably connected between the active shaft (19) and the driven shaft. A third motor (20) is provided at the bottom of the first transmission belt (22). A first rotating wheel (21) is provided at one end of the third motor (20), and a fixing plate (23) is bolted to the other end. The other end of the fixing plate (23) is provided on the support frame (1). A second transmission belt (10) is rotatably connected between the first rotating wheel (21) and the second rotating wheel (24).

6. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 5, characterized in that: The drive shaft (19) and the driven shaft have the same diameter, and the fixing plate (23) is made of a hard elastic steel. The support frame (1) has a processor (25) bolted to the same side where the second transmission belt (10) is provided.

7. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 1, characterized in that: A light source receiver (18) is bolted between the support frame (1) and inside the first transmission belt (22). The light source receiver (18) is located directly above the LED lamp (17) and the sensing side is vertically downward.

8. The device for rapidly detecting belt misalignment, tearing, and slippage according to claim 5, characterized in that: The first transmission belt (22) is opaque, and during normal operation, there is a certain gap between the two sides and the support frame (1).

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