Integrated self-generating carrier roller state monitoring sensor

Abstract

The utility model relates to the technical field of equipment state monitoring, in particular to an integrated self-generating carrier roller state monitoring sensor, which comprises a shell and a detection plate arranged in the shell, the detection plate is provided with an induction coil and a Hall sensor, the induction coil realizes self-generating through electromagnetic induction with a magnetic block on a carrier roller, and the Hall sensor is arranged on the shell. The Hall sensor realizes rotation speed detection of the carrier roller through electromagnetic induction with the magnetic block; the detection board is provided with an energy storage element connected with the output end of the induction coil, the energy storage element is connected with the input end of a power management chip, the output end of the power management chip supplies power to a main chip, a communication chip and a Hall sensor on the detection board, and the main chip and an upper computer at the rear end are in one-way / two-way data transmission through the communication chip. According to the utility model, the running state of the carrier roller can be monitored, so that the faulted carrier roller can be found in time, and the normal running of a transportation line is ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of equipment state monitoring, and specifically relates to an integrated self-power generation idler state monitoring sensor. BACKGROUND

[0002] The belt conveyor has the advantages of simple structure, convenient maintenance, low cost and strong universality, and is one of the most ideal high-efficiency continuous conveying equipment in coal mines, food, ports and metallurgical departments. The idler is an important component of the belt conveyor, which not only bears the weight of the conveyor belt and the material thereon, but also rotates actively / passively to ensure the smooth running of the conveyor belt, so the running state of the idler directly affects the entire belt conveyor. In many application scenarios, the belt conveyor needs to work continuously for a long distance and a long time, and if many idlers fail (mainly manifested as slow rotation or stop), the frictional resistance of the conveyor belt will increase significantly, affecting the operation of the entire belt conveyor.

[0003] In the prior art, the inspection of the faulty idler is mainly completed by manual inspection or automatic monitoring devices. Since the working environment of the belt conveyor is often harsh, manual inspection is labor-intensive and the accuracy is affected by the installation position. Chinese utility model patent CN 218930689 U discloses a temperature and speed monitoring device for a belt conveyor idler, which detects the speed of the idler by mutual induction of a Hall sensor and a magnetic block, and can complete the task of idler monitoring, but still has the following defects: the sensors and other functional modules in the entire device need to be powered by a battery. For the belt conveyor, the number of idlers is large, and the life of the battery will be affected in a harsh working environment, and the replacement cost is too high after the battery runs out, which needs to be solved urgently. UTILITY MODEL CONTENTS

[0004] The utility model aims at overcoming the defects in the background art, providing an integrated self-power generation idler state monitoring sensor to monitor the running state of the idler, so as to timely find the faulty idler and ensure the normal operation of the transportation line.

[0005] The technical scheme of the utility model is:

[0006] The integrated self-power generation idler state monitoring sensor comprises a shell and a detection plate installed in the shell, the detection plate is provided with an induction coil and a Hall sensor, the Hall sensor and the induction coil are both located outside the rotation path of the magnetic block, the induction coil realizes self-power generation by electromagnetic induction with the magnetic block on the idler, and the Hall sensor realizes speed detection of the idler by electromagnetic induction with the magnetic block;

[0007] The detection plate is provided with an energy storage element connected with an output end of the inductive coil, the energy storage element is connected with an input end of the power management chip, and an output end of the power management chip supplies power to a main chip, a communication chip and a Hall sensor on the detection plate, and the main chip realizes one-way / two-way data transmission with the upper computer at the back end through the communication chip.

[0008] In a further scheme, the detection plate is provided with a temperature sensor, the temperature sensor is powered by an output end of the power management chip, a detection end of the temperature sensor is arranged towards any one of the supporting roller, the supporting roller bracket and the supporting roller rotating shaft, and a signal output end of the temperature sensor sends data to the main chip.

[0009] In a further scheme, the shell is made of plastic or metal.

[0010] In a further scheme, the communication chip is connected with an antenna, and the antenna is a built-in antenna or an external antenna.

[0011] In a further scheme, the shell is provided with a first cavity and a second cavity, the first cavity is used for mounting the detection plate, and the second cavity is used for mounting the external antenna.

[0012] In a further scheme, the energy storage element is a capacitor.

[0013] In a further scheme, the detection plate and electronic components thereon are sealed in the shell.

[0014] In a further scheme, the shell is provided with an opening allowing the detection plate to enter, and the detection plate is packaged in the shell by glue injection after entering the interior of the shell from the opening.

[0015] Compared with the prior art, the utility model has the following advantages: (1) the application can generate electricity by itself, store electricity in the energy storage element and supply the electronic components, and long-term use does not need to replace the battery; (2) the detection plate of the application is packaged in the shell, which can effectively reduce the possibility of water vapor corrosion and can adapt to harsh environments; (3) the application can monitor the supporting roller rotating speed and also can monitor the temperature anomaly caused by the supporting roller stop or slow rotation. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the installation structure schematic view of the embodiment of the utility model.

[0017] Figure 2 is the circuit structure schematic view of the embodiment of the utility model.

[0018] Figure 3 is the bottom structure schematic view of the embodiment of the utility model.

[0019] In the figure: shell 1, detection plate 2, induction coil 3, Hall sensor 4, energy storage element 5, power management chip 6, rotating shaft 7, main chip 8, communication chip 9, antenna 10, roller support 11, glue injection layer 12, roller 13, magnetic block 14, temperature sensor 15, first cavity 16, second cavity 17. DETAILED DESCRIPTION

[0020] In order to make ordinary skilled in the art more clearly understand the purpose, technical scheme and advantages of the utility model, the following will be further described by the utility model with the help of the drawings and examples, but the utility model is not limited to the following examples.

[0021] In the description of the utility model, it needs to be explained that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the utility model 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 on the utility model.

[0022] As shown in the figure, the integrated self-power generation roller state monitoring sensor provided by the embodiment comprises a shell 1 and a detection plate 2 installed in the shell 1. Figures 1-3

[0023] Among them, the induction coil 3 generates induced current through electromagnetic induction with the magnetic block 14 on the roller 13 to realize self-power generation, and the generated electricity is stored in the energy storage element 5 connected in parallel at the output end of the induction coil 3, and the Hall sensor 4 realizes the rotation speed detection of the roller 13 through electromagnetic induction with the magnetic block 14.

[0024] The energy storage element 5 is recommended to be a capacitor, the two ends of which are connected to the input end of the power management chip 6, and the output end of the power management chip 6 supplies power to the main chip 8, the communication chip 9, the temperature sensor and the Hall sensor 4 on the detection plate 2.

[0025] Since the working environment is usually harsh, in order to reduce the damage to the sensor due to material falling and the like and improve the service life, the shell 1 is recommended to be made of metal or engineering plastic with high strength. In the whole sensor, the shell 1 is fixed on the roller support 11 through a fixing piece, and the positions of the Hall sensor 4, the induction coil 3 and the temperature sensor 15 are determined according to the installation position of the sensor, as shown in the figure. Figure 1 Figure 1 ​​In some embodiments, the Hall sensor 4 and the induction coil 3 are arranged towards one end of the housing 1 and face the magnetic block 14 at the end of the carrier roller, outside the rotation path of the magnetic block 14, and the detection end of the temperature sensor 15 is arranged close to the bottom of the housing 1 and faces the carrier roller support 11. Obviously, in other embodiments, the detection end can also be arranged towards the carrier roller 13 or the rotation shaft 7 of the carrier roller. The signal output end of the temperature sensor 15 transmits the detected temperature data to the main chip 8.

[0026] The main chip 8 is electrically connected with the communication chip 9. Through one-way or two-way data transmission between the communication chip 9 and the host computer at the back end, one-way data transmission means that the main chip 8 transmits data (mainly temperature data and rotation speed data) to the host computer in one direction through the communication chip 9. Two-way data transmission means that the main chip 8 not only transmits data to the host computer through the communication chip 9, but also receives instructions issued by the host computer through the communication chip 9, such as setting the working time and the sleep interval.

[0027] The communication chip 9 is connected with an antenna, which can be an internal antenna or an external antenna. Figure 1 In some embodiments, the detection board 2 is printed with a PCB onboard antenna 10, which is connected with the communication chip 9. The arrangement of the PCB onboard antenna 10 can further enhance the signal and make the detection board 2 more compact, so that the volume of the entire sensor can be reduced. In some embodiments, the communication chip 7 is connected with an external antenna, such as an FPC soft antenna or other hard antenna. In some embodiments, the housing is provided with a first cavity 16 for mounting the detection board 2 and a second cavity 17 for mounting the external antenna.

[0028] As shown in Figure 1 In order to reduce the water vapor erosion, the detection board 2 and the electronic components thereon are sealed in the housing 1. The shape of the housing 1 can be determined according to the actual application scene, for example, it can be a cylindrical or square tube with an open bottom. After the detection board 2 is inserted into the opening of the housing 1, the detection board 2 can be sealed in the inner cavity by the end cover. In some embodiments, glue can be injected into the interior of the housing 1 from the opening, and after the glue is cured, an injection layer 12 is formed to fill the gap between the inner wall of the housing 1 and the detection board 2, and the opening is also blocked, so as to isolate the detection board 2 and the electronic components therefrom from the external air.

[0029] Generally, in order to improve the accuracy of detection, the detection end of the temperature sensor is arranged at the open end, and it is recommended to be substantially flush with the end face of the injection layer 12 at the open end.

[0030] In the embodiment, the connection between each electronic component on the detection plate 2 is completed by a printed circuit. In the embodiment, the selection of the communication chip 9 is determined according to the actual application scene, for example, an existing low-power ZigBee chip, a low-power Bluetooth chip, etc.

[0031] The working principle of the embodiment is that when the magnetic block 14 on the carrier roller 13 rotates, the magnetic flux changes, an induced current is generated in the induction coil 3, the induced current charges the energy storage element 5 to realize electric energy storage, the power management chip 6 controls the power supply of each electronic component, when the power management chip 6 outputs current externally, the temperature sensor, the Hall sensor 4, the main chip 8 and the communication chip 9 are powered on to start working, otherwise, when the power management chip 6 cuts off the external power supply, except that the induction coil 3 continuously charges the energy storage element 5, each electronic component is powered off and enters a standby sleep state.

[0032] When the magnetic block 14 rotates, the Hall sensor 4 generates an induction signal and sends it to the main chip 8, and the main chip 8 sends it to the upper computer through the communication chip 9, the higher the rotating speed of the carrier roller 13, the stronger the signal strength of the Hall sensor 4, and if the rotation is slow or stopped, the signal of the Hall sensor 4 is weakened, so as to achieve the purpose of rotation speed monitoring.

[0033] When the carrier roller 13 fails to rotate or rotate slowly, the temperature will obviously rise due to the friction with the conveying belt, the heat is transferred to the rotating shaft 7 to make the temperature of the rotating shaft 7 rise, and the rotating shaft 7 is transferred to the carrier roller support 11 to make the temperature of the carrier roller support 11 rise, so that the temperature of any one of them can be detected. The embodiment mainly monitors the temperature of the carrier roller support 11, and the temperature sensor 15 transmits the monitored data to the main chip 8, and the main chip 8 sends the data to the upper computer through the communication chip 9.

[0034] When transmitting data to the upper computer, the communication chip 9 of different sensors can distinguish different sensors through different address codes in the data, which is the prior art of the communication chip 9 and will not be described in detail. The staff of the upper computer can judge whether the carrier roller 13 has a fault through the rotation speed and temperature data, and locate the corresponding fault carrier roller 13, and remind the relevant personnel to replace it in time.

[0035] The above only describes the preferred embodiments of the present application, and those skilled in the art can make various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. An integrated self-powered idler roller condition monitoring sensor, characterized by: The application relates to a detection device for a supporting roller (13) of a paper roll (12), which comprises a shell (1) and a detection plate (2) installed in the shell (1), the detection plate (2) is provided with an induction coil (3) and a Hall sensor (4), the Hall sensor (4) and the induction coil (3) are located outside the rotating path of a magnetic block (14), the induction coil (3) realizes self-power generation through electromagnetic induction with the magnetic block (14) on the supporting roller (13), and the Hall sensor (4) realizes rotation speed detection of the supporting roller (13) through electromagnetic induction with the magnetic block (14). The detection plate (2) is provided with an energy storage element (5) connected with the output end of the induction coil (3), the energy storage element (5) is connected with the input end of a power management chip (6), the output end of the power management chip (6) supplies power to a main chip (8), a communication chip (9) and the Hall sensor (4) on the detection plate (2), and the main chip (8) realizes one-way / two-way data transmission with a host computer at the back end through the communication chip (9).

2. The integrated, self-powered top roller condition monitoring sensor of claim 1, wherein: The detection plate (2) is provided with a temperature sensor (15) which is powered by the output end of the power management chip (6), the detection end of the temperature sensor is arranged towards any one of the supporting roller (13), a supporting roller bracket (11) and a supporting roller rotating shaft, and the signal output end of the temperature sensor sends data to the main chip (8).

3. The integrated, self-powered top roller condition monitoring sensor of claim 1, wherein: The shell (1) is made of plastic or metal.

4. The integrated, self-powered top roller condition monitoring sensor of claim 1, wherein: The communication chip (9) is connected with an antenna, and the antenna is an internal antenna or an external antenna.

5. The integrated, self-powered top roller condition monitoring sensor of claim 4, wherein: The shell is provided with a first cavity and a second cavity, the first cavity (16) is used for installing the detection plate (2), and the second cavity (17) is used for installing the external antenna.

6. The integrated, self-powered top roller condition monitoring sensor of claim 1, wherein: The energy storage element (5) is a capacitor.

7. The integrated power generating idler condition monitoring sensor of any one of claims 1 to 6, wherein: The detection plate (2) and electronic components thereon are sealed in the shell (1).

8. The integrated power generating idler condition monitoring sensor of any one of claims 1 to 6, wherein: The shell (1) is provided with an opening allowing the detection plate (2) to enter, and the detection plate (2) is packaged in the shell (1) through glue injection after entering the inside of the shell (1) from the opening.

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