Hub abnormity intelligent monitoring system

Abstract

The utility model relates to the technical field of equipment detection, in particular to an intelligent hub abnormity monitoring system which comprises an intelligent sensor unit, a wireless receiving module and a sound-light alarm device. The intelligent sensor unit is mounted on the hub speed reducer; the intelligent sensor unit comprises an adsorption magnetic ring, a Hall element module, an MCU radio frequency module and a power supply module. The adsorption magnetic ring is used for adsorbing metal powder in lubricating oil of the hub speed reducer; the adsorption magnetic ring is connected with the Hall element module; when the content of the metal powder adsorbed on the adsorption magnetic ring reaches a powder threshold value, the Hall element module sends an alarm signal to the wireless receiving module through the MCU radio frequency module; the power supply module is used for supplying power to the Hall element module and the MCU radio frequency module; the wireless receiving module controls the sound-light alarm device to give an alarm according to the received alarm signal. According to the utility model, remote monitoring and early warning of the hub speed reducer are realized, the efficiency and safety of equipment maintenance are improved, and the maintenance cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of equipment detection, and specifically relates to an intelligent monitoring system for abnormal wheels. Background Technique

[0002] In the current operation environment of Chiwan Container Terminal (CCT), mobile equipment such as reach stackers and straddle carriers, as key productivity factors, their operating states directly affect the operation efficiency and cost control of the terminal. However, as the service life of this batch of equipment generally exceeds ten years, a problem that cannot be ignored has gradually emerged: the equipment aging phenomenon is serious, especially the bearings and transmission gears of core components such as the front axle wheel hub reducer and differential. Due to long-term heavy loads and complex working conditions, the wear is aggravated and it is difficult to effectively monitor through traditional means.

[0003] This situation not only exacerbates the complexity and difficulty of equipment maintenance, but also hides huge safety hazards. Specifically, if the slight wear of the wheel hub reducer and bearings fails to be detected in time, it often leads to the rapid deterioration of the fault, and ultimately causes serious damage to the entire front axle components. The repair and replacement costs are often as high as hundreds of thousands of yuan, posing a significant threat to the financial health of the terminal. Content of the Utility Model

[0004] The purpose of the utility model is to provide an intelligent monitoring system for abnormal wheels to solve at least one of the above technical problems. The system aims to promote the intelligent transformation of equipment maintenance, be able to capture and analyze the operating state data of wheel hub gears and bearings in real time, trigger an alarm mechanism immediately once abnormal wear signs are found, effectively prevent the deterioration of faults, thereby significantly reducing the maintenance cost and improving the reliability and economy of equipment operation.

[0005] The utility model realizes the above purpose through the following technical solutions:

[0006] An intelligent monitoring system for abnormal wheels, comprising: an intelligent sensor unit, a wireless receiving module, and an audible and visual alarm device;

[0007] The intelligent sensor unit is installed on the wheel hub reducer; the intelligent sensor unit includes an adsorption magnetic ring, a Hall element module, an MCU radio frequency module, and a power supply module;

[0008] The adsorption magnetic ring is used to adsorb metal powder in the lubricating oil of the wheel hub reducer; the adsorption magnetic ring is connected to the Hall element module; when the metal powder content adsorbed on the adsorption magnetic ring reaches the powder threshold, the Hall element module sends an alarm signal to the wireless receiving module through the MCU radio frequency module; the power supply module is used to supply power to the Hall element module and the MCU radio frequency module;

[0009] The wireless receiving module controls the acoustic-optic alarm device to give an alarm reminder according to the received alarm signal.

[0010] Further, the intelligent sensor unit encapsulates the adsorption magnetic ring, the Hall element module, the MCU radio frequency module and the power supply module into one body; the appearance of the intelligent sensor unit includes the adsorption magnetic ring, the screw thread, the sealing rubber ring, the outer shell and the back cover which are connected in sequence;

[0011] The Hall element module is sealed in the outer shell, and the MCU radio frequency module and the power supply module are sealed in the back cover;

[0012] The intelligent sensor unit is tightly connected to the hub reducer through the screw thread; the sealing rubber ring is used to maintain the tightness inside the intelligent sensor unit.

[0013] Further, the Hall element module includes: Hall sensor A3144, voltage comparator, induction sensitivity potentiometer, output circuit;

[0014] When the level signal of the Hall sensor A3144 changes, the voltage comparator amplifies the signal and sends it to the MCU radio frequency module through the output circuit;

[0015] The induction sensitivity potentiometer is used for adjusting the circuit sensitivity.

[0016] Further, the powder threshold is: the metal powder reaches 10% of the cross-section of the adsorption magnetic ring.

[0017] Further, the MCU radio frequency module uses the Infineon BGT24MTR11 chip.

[0018] Further, the acoustic-optic alarm device (4) includes: chip CD4027BE, light-emitting diode and buzzer;

[0019] The chip CD4027BE processes the signal received from the wireless receiving module (3), and controls the light-emitting diode and the buzzer to give an acoustic-optic alarm.

[0020] Further, the intelligent sensor unit conducts a detection every 3 minutes. If the metal powder content reaches the powder threshold, the Hall element module sends the alarm signal to the wireless receiving module through the MCU radio frequency module; otherwise, the intelligent sensor unit enters the sleep state.

[0021] Further, if the metal powder content continuously fails to reach the powder threshold, the MCU radio frequency module sends a data normal signal to the wireless receiving module every 10 minutes.

[0022] Further, the wireless receiving module includes a status indicator light, which has three states:

[0023] When the status indicator light shows a green light, it indicates that the hub is in normal condition;

[0024] When the status indicator light shows a yellow light, it indicates that the wireless receiving module has not received the data sent by the MCU RF module for more than 30 minutes;

[0025] When the status indicator light shows a red light, it indicates that the metal powder content has reached the powder threshold.

[0026] Further, the transmission frequency of the MCU RF module is 433 MHZ, and the transmission distance is 8 - 12 meters.

[0027] The beneficial effects of the present utility model are as follows:

[0028] By integrating an intelligent sensor unit, a wireless receiving module and an acoustic - optical alarm device, the present utility model realizes the real - time monitoring and intelligent analysis of the wear conditions of hub gears and bearings; this system can accurately capture the change of metal powder content, immediately trigger an alarm once an abnormality is found, effectively prevent the deterioration of faults, significantly reduce the maintenance cost, promote the intelligent transformation of the maintenance of mobile equipment, and improve the safety and economy of equipment operation.

[0029] Through the regular detection every 3 minutes and the instant alarm mechanism, the present utility model ensures the continuous monitoring and rapid response of the hub status; the combination of its high - precision Hall element module and MCU RF module realizes the accurate measurement and data transmission of the metal powder content; the status indicator light of the wireless receiving module and the acoustic - optical alarm device provide intuitive fault indications for the driver, facilitating timely notification to maintenance personnel for handling, thus avoiding the further expansion of faults and ensuring the stable operation and efficient operation of the equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic structural diagram of the hub abnormal intelligent monitoring system according to an embodiment of the present utility model;

[0031] Figure 2 It is a schematic diagram of the signal transmission principle according to an embodiment of the present utility model;

[0032] Figure 3 It is a composition diagram of the hub abnormal intelligent monitoring system according to an embodiment of the present utility model;

[0033] Figure 4 It is a schematic external view diagram of the intelligent sensor unit according to an embodiment of the present utility model;

[0034] Figure 5Three - dimensional structure diagram of an intelligent sensor unit according to an embodiment of the present utility model;

[0035] Figure 6 Front view of an intelligent sensor unit according to an embodiment of the present utility model;

[0036] Figure 7 Side view of an intelligent sensor unit according to an embodiment of the present utility model;

[0037] Figure 8 Schematic circuit diagram of a Hall element module according to an embodiment of the present utility model;

[0038] Figure 9 Schematic diagram of a wireless receiving module according to an embodiment of the present utility model;

[0039] Figure 10 Schematic diagram of a wheel hub abnormal intelligent monitoring system according to an embodiment of the present utility model.

[0040] In the figure: 1. Hall element module, 2. MCU RF module, 3. Wireless receiving module, 31. Front axle fault alarm light, 32. Sensor fault alarm light, 33. Normal state light, 34. Sensor replacement button, 35. Lubricating oil high - temperature alarm light, 4. Acousto - optic alarm device, 5. Power supply module, 6. Wheel hub speed reducer, 10. Adsorption magnetic ring, 20. Thread, 30. Sealing rubber ring, 40. Outer shell, 50. Rear cover. Specific embodiments

[0041] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0042] Embodiment 1

[0043] Figure 1 Schematic structure diagram of a wheel hub abnormal intelligent monitoring system according to an embodiment of the present utility model; Figure 2 Schematic diagram of signal transmission according to an embodiment of the present utility model; Figure 3 Composition diagram of a wheel hub abnormal intelligent monitoring system according to an embodiment of the present utility model. As Figures 1-3 shown, according to an embodiment of the present utility model, a wheel hub abnormal intelligent monitoring system includes: an intelligent sensor unit, a wireless receiving module 3, and an acousto - optic alarm device 4;

[0044] The intelligent sensor unit is installed on the wheel hub reducer 6; the intelligent sensor unit includes an adsorption magnetic ring 10, a Hall element module 1, an MCU radio frequency module 2, and a power supply module 5;

[0045] The adsorption magnetic ring 10 is used to adsorb metal powder in the lubricating oil of the wheel hub reducer 6; the adsorption magnetic ring 10 is connected to the Hall element module 1; when the metal powder content adsorbed on the adsorption magnetic ring 10 reaches the powder threshold, the Hall element module 1 sends an alarm signal to the wireless receiving module 3 through the MCU radio frequency module 2; the power supply module 5 is used to supply power to the Hall element module 1 and the MCU radio frequency module 2;

[0046] The wireless receiving module 3 controls the sound and light alarm device 4 to give an alarm reminder according to the received alarm signal.

[0047] Preferably, the powder threshold is: the metal powder reaches 10% of the cross-section of the adsorption magnetic ring 10.

[0048] In this embodiment, the abnormal intelligent monitoring system of the wheel hub realizes the real-time monitoring of the internal oil liquid state of the wheel hub reducer 6 through the precisely designed intelligent sensor unit. The core components of the intelligent sensor unit include an adsorption magnetic ring 10, a Hall element module 1, an MCU radio frequency module 2, and a power supply module 5. The Hall element module 1 is connected to the MCU radio frequency module 2 through the I / O interface. The adsorption magnetic ring 10 is directly installed in the wheel hub reducer 6 and is responsible for adsorbing metal powder in the front axle lubricating oil. When these metal powders accumulate to 10% of the cross-section of the adsorption magnetic ring 10 (i.e., the set powder threshold), the Hall element module 1 can sense the magnetic field change and then trigger a signal. This signal is then encoded and modulated by the MCU radio frequency module 2 and sent wirelessly to the remote wireless receiving module 3. Once the wireless receiving module 3 receives the alarm signal, it immediately activates the sound and light alarm device 4, and quickly reminds the operator of the potential failure of the wheel hub reducer through the dual warnings of vision and hearing.

[0049] The intelligent sensor unit can adapt to oils such as hydraulic oil, gear oil, transformer oil, and turbine oil. Therefore, the intelligent sensor unit of the present utility model is also applicable to the abnormal monitoring in fields such as oil sumps, hydraulic systems, gearboxes, diesel engine sets, turbine sets, and air compressors.

[0050] The utility model realizes remote real-time monitoring and early warning of the metal powder content in the oil of the hub reducer through an integrated intelligent sensor unit and efficient wireless communication technology; its accurately set powder threshold ensures the sensitivity and accuracy of fault detection, effectively preventing equipment damage and unexpected shutdowns caused by oil pollution. The system of the utility model is widely applicable to key equipment such as oil sumps, hydraulic systems, gearboxes, diesel engine units, turbine units, air compressors, etc., compatible with a variety of oils, demonstrating strong adaptability and application value. Through timely alarm reminders, the utility model significantly improves the efficiency and safety of equipment maintenance, reduces maintenance costs, and provides a strong guarantee for the safe production and efficient operation of enterprises.

[0051] Figure 4 Schematic diagram of the appearance of the intelligent sensor unit according to an embodiment of the utility model; Figure 5 Three-dimensional structure diagram of the intelligent sensor unit according to an embodiment of the utility model; Figure 6 Front view of the intelligent sensor unit according to an embodiment of the utility model; Figure 7 Side view of the intelligent sensor unit according to an embodiment of the utility model; As Figures 4-7 shown, according to an embodiment of the utility model, the intelligent sensor unit encapsulates the adsorption magnetic ring 10, Hall element module 1, MCU radio frequency module 2 and power supply module 5 into one body; the appearance of the intelligent sensor unit includes an adsorption magnetic ring 10, a screw thread 20, a sealing rubber ring 30, a housing 40, and a rear cover 50 connected in sequence;

[0052] The Hall element module 1 is sealed in the housing 40, and the MCU radio frequency module 2 and the power supply module 5 are sealed in the rear cover 50;

[0053] The intelligent sensor unit is tightly connected to the hub reducer 6 through the screw thread 20; the sealing rubber ring 30 is used to maintain the tightness inside the intelligent sensor unit.

[0054] In this embodiment, the intelligent sensor unit is tightly connected to the hub reducer 6 through the screw thread 20 to form a stable whole. Inside it, the Hall element module 1 is sealed in the housing 40 to detect magnetic field changes, while the MCU radio frequency module 2 and the power supply module 5 are sealed in the rear cover 50, responsible for data processing, wireless transmission and power supply. The adsorption magnetic ring 10 is used to adsorb metal powder in the lubricating oil of the hub reducer 6; the Hall element module 1 detects the magnetic field change on the adsorption magnetic ring 10; the sealing rubber ring effectively guarantees the internal tightness of the whole unit, preventing the influence of the external environment on the internal precision components.

[0055] Through a highly integrated packaging method, the utility model not only simplifies the installation and maintenance processes of the intelligent sensor unit, but also significantly improves its environmental adaptability and reliability. The close cooperation between the Hall element and the MCU RF module enables precise monitoring of the status of the hub speed reducer and real-time data transmission, providing strong technical support for equipment maintenance and safety monitoring. The sealing design effectively resists the intrusion of external dust, moisture and other adverse factors, extends the service life of the equipment, and reduces the maintenance cost.

[0056] Figure 8 The circuit schematic diagram of the Hall element module for an embodiment of the utility model. As Figure 8 shown, according to an embodiment of the utility model, the Hall element module 1 includes: Hall sensor A3144, voltage comparator, induction sensitivity potentiometer, output circuit;

[0057] When the level signal of the Hall sensor A3144 changes, the voltage comparator amplifies the signal and sends it to the MCU RF module 2 through the output circuit;

[0058] The induction sensitivity potentiometer is used for adjusting the circuit sensitivity.

[0059] Preferably, the MCU RF module 2 uses the Infineon BGT24MTR11 chip.

[0060] Preferably, the acoustic-optic alarm device 4 includes: chip CD4027BE, light-emitting diode and buzzer;

[0061] The chip CD4027BE processes the signal received from the wireless receiving module 3 and controls the light-emitting diode and buzzer to give an acoustic-optic alarm.

[0062] In this embodiment, the adsorption magnetic ring 10 adsorbs the metal powder in the lubricating oil of the hub speed reducer 6; the Hall element module 1 uses the Hall sensor A3144 to detect the magnetic field change of the adsorption magnetic ring 10. When the level signal of the Hall sensor A3144 changes, the voltage comparator amplifies the signal and transmits it to the MCU RF module 2 (using the Infineon BGT24MTR11 chip) through the output circuit for processing. The MCU RF module 2 is not only responsible for data processing, but also sends information wirelessly. The acoustic-optic alarm device 4 receives the signal from the wireless receiving module 3, and after being processed by the chip CD4027BE, controls the light-emitting diode and buzzer to give an acoustic-optic alarm to achieve instant feedback. The entire system ensures real-time monitoring and timely response to the status of the hub speed reducer through precise detection, efficient transmission and intuitive alarm.

[0063] The power module 5 uses a single 9V battery, and the working parameters of the intelligent sensor unit are:

[0064] Operating voltage: DC5 - 12V,

[0065] Contact type: PNP type

[0066] Detection distance: 2 - 4mm

[0067] Actuating distance: 2mm

[0068] Output current: 100mA

[0069] Operating temperature: -20 - 80°C

[0070] Detectable fluid temperature: -20 - 100°C

[0071] Transmission frequency: 433MHZ

[0072] Transmission distance: 8 - 12m

[0073] The utility model integrates a Hall element module and an MCU RF module, combines the adsorption magnetic ring to monitor the metal powder in the lubricating oil of the hub reducer, and realizes the real-time monitoring of the wear state of the hub reducer; the high-precision detection of the Hall sensor A3144 and the signal amplification of the voltage comparator ensure the accuracy of the detection signal; the efficient data processing and wireless transmission of the MCU RF module enable the monitoring data to be quickly transmitted to the receiving end; the instant feedback mechanism of the acoustic-optic alarm device further improves the response speed of the system and effectively prevents the safety problems that may be caused by the abnormal wear of the hub reducer. The utility model has wide working parameters and strong adaptability, can operate stably under various environmental conditions, and provides a strong guarantee for the long-term safe operation of the equipment.

[0074] Figure 9 Schematic diagram of a wireless receiving module for an embodiment of the utility model; Figure 10 Schematic diagram of the intelligent monitoring system for abnormal hubs of the utility model. As Figures 9-10 shown, according to an embodiment of the utility model, the intelligent sensor unit performs a detection every 3 minutes. If the metal powder content reaches the powder threshold, the Hall element module 1 sends an alarm signal to the wireless receiving module 3 through the MCU RF module 2; otherwise, the intelligent sensor unit enters the sleep state.

[0075] Preferably, if the metal powder content continuously does not reach the powder threshold, the MCU RF module 2 sends a data normal signal to the wireless receiving module 3 every 10 minutes.

[0076] Preferably, the wireless receiving module 3 includes a status indicator light, and the status indicator light has three states:

[0077] When the status indicator light shows a green light, it means that the hub status is normal;

[0078] When the status indicator shows a yellow light, it means that the wireless receiving module 3 has not received the data sent by the MCU RF module 2 for more than 30 minutes;

[0079] When the status indicator shows a red light, it means that the metal powder content has reached the powder threshold.

[0080] In this embodiment, the intelligent sensor unit serves as the core detection component and automatically activates and executes the detection task of the metal powder content every 3 minutes. If it is detected that the content of the metal powder has reached the preset powder threshold, indicating that there may be an abnormal situation, at this time, the Hall element module 1 in the intelligent sensor unit will quickly respond and send an emergency alarm signal to the remote wireless receiving module 3 through the MCU RF module 2. This signal transmission process ensures the immediacy and accuracy of information. On the contrary, if the metal powder content does not reach the powder threshold during continuous detections, the MCU RF module 2 will, for energy-saving considerations, instead send a data normal signal to the wireless receiving module 3 every 10 minutes to confirm that the system is still in a normal working state and the environment is normal.

[0081] As the receiving end, the wireless receiving module 3 is not only responsible for receiving signals from the MCU RF module 2, but also equipped with an intuitive status indicator to reflect the system status. When the green light is constantly on, it represents that the current status of the wheel hub (or the monitored area) is normal without any abnormal alarms; when the yellow light is on, it is a warning signal, indicating that the wireless receiving module has not received data from the MCU RF module for more than 30 minutes, which may be due to a problem with the communication link or the MCU RF module entering an abnormal state; and when the red light flashes, it directly indicates that the metal powder content has reached the dangerous threshold and immediate measures need to be taken.

[0082] According to a preferred embodiment of this embodiment, the status indicator of the wireless receiving module 3 includes: a front axle fault alarm light 31 (the lit state is red), a sensor fault alarm light 32 (the lit state is yellow), and a normal status light 33 (the lit state is green); as needed, a lubricating oil high-temperature alarm light 35 (the lit state indicates that the lubricating oil temperature exceeds the warning value) and a sensor replacement button 34 (long pressing can reset the parameters of the entire system and is used to connect and pair with a new intelligent sensor unit after replacing the intelligent sensor unit) can also be set on the wireless receiving module 3.

[0083] This utility model regularly detects the metal powder content through the intelligent sensor unit and uses the MCU RF module and the wireless receiving module for real-time communication, realizing instant alarm for potential abnormalities and periodic confirmation of the normal state of the system; the multi-color status indicator and the sensor replacement button on the wireless receiving module provide intuitive fault indication and system maintenance functions, ensuring the reliable operation and convenient maintenance of the system, and effectively improving the response speed and safety of the monitoring system.

[0084] Embodiment 2

[0085] As Figures 1-10 shown, according to an embodiment of the present utility model, an intelligent monitoring system for abnormal hub includes a Hall element module 1, an MCU radio frequency module 2, a wireless receiver, an acoustic-optic alarm device 4, and a battery; wherein the Hall element module 1 uses a Hall sensor, and the Hall sensor is used to detect the temperature in the lubricating oil and the content of metal powder in the lubricating oil; the MCU radio frequency module 2 is used to receive the temperature signal and the metal powder content signal of the Hall sensor, and transmit these signals; after receiving the signal sent by the radio frequency module 2, the wireless receiver decodes it, conveys it to the acoustic-optic alarm device 4, and issues corresponding alarm signals and light indication signals; the battery provides electrical energy for the Hall sensor and the MCU radio frequency module 2.

[0086] The Hall element module 1 collects the content of metal powder in the lubricating oil of the front axle of reach stacker and straddle carrier. When the content of metal powder reaches a certain value, the sensor sends an alarm signal wirelessly. After receiving the alarm signal, the receiver reminds the driver to notify the maintenance personnel to perform timely maintenance in the cab through acoustic and optical alarms, avoiding the expansion of the fault and realizing real-time monitoring.

[0087] When the gears and bearings in the front axle of reach stacker and straddle carrier are damaged, iron powder will be generated. These iron powders flow into the lubricating oil. The magnetic ring at the front end of the Hall sensor will collect the iron powder content in the lubricating oil. When the iron powder content reaches a certain level, an alarm signal is triggered; at the same time, when the gears and bearings in the front axle of reach stacker and straddle carrier are damaged, the temperature rises rapidly, conducts to the lubricating oil, and the thermistor on the sensor receives the high-temperature signal, which is sent to the receiver through the MCU radio frequency module 2. After receiving the signal, the receiver issues an acoustic-optic alarm to remind the driver that the vehicle has a fault and needs to stop for maintenance.

[0088] The Hall element module 1 is made by using integrated packaging and assembly processes based on the Hall effect principle. The Hall element module 1 is composed of a Hall element 3144, a voltage comparator, an induction sensitivity potentiometer, and an output circuit. It can conveniently convert the magnetic input signal into an electrical signal in practical applications. When the metal powder floating in the lubricating oil is adsorbed on the adsorption magnetic ring 10 and these metal powders reach 10% of the sensor cross-section, the Hall element 3144 triggers an output high level. This high-level signal is amplified by the voltage comparator and then outputs a square-wave level signal of the same frequency. The square-wave level signal is input to the radio frequency module.

[0089] The MCU radio frequency module 2 uses an Infineon BGT24MTR11 chip and is composed of a receiving circuit, a transmitting path, and a local oscillator circuit; it is mainly responsible for receiving the voltage signal and temperature signal of the Hall sensor for demodulation, and then modulating the demodulated signal. The modulated signal is conveyed to the transmitting circuit.

[0090] The receiver consists of an antenna, a filter, an amplifier, and a receiving demodulator.

[0091] The acoustic-optic alarm device 4 amplifies and filters the demodulation signal of the receiver and then executes the alarm; the acoustic-optic alarm device 4 consists of a chip CD4027BE, light-emitting diodes, and a buzzer.

[0092] The hub bearings and gears of reach stackers and straddle carriers are immersed in lubricating oil. After wear, they are free in the lubricating oil in the form of particles or blocks. The sensor is installed on the outside of the hub. As the tire rotates, the magnetic ring on the sensor continuously adsorbs metal particles in the oil. When the adsorbed metal particles reach a certain index, the magnetic flux of the probe on the sensor changes, and the changed magnetic signal outputs a level signal by the Hall element. The generated level signal is sent to the receiving host by the RF chip of the sensor through a 433MHZ frequency. The acoustic-optic alarm device 4 helps the user judge the operating state of the equipment with sound and light flashes.

[0093] The intelligent inspection sensor performs a detection every 3 minutes. When there is no trigger condition, it continues to sleep. When the alarm is triggered, it immediately sends an alarm signal. The MCU RF module 2 transmits normal data every 10 minutes. When receiving the alarm sent by the Hall element module 1, it is immediately uploaded to the receiver through the MCU RF module 2. At this time, the transmission frequency of the MCU RF module 2 is 433MHZ, and the transmission distance is 8 - 12 meters. The overall power consumption design of the sensor is reasonable, ensuring that the service life of a single 9V battery reaches 2 - 3 years.

[0094] The receiver has three states. In the normal state, it shows a green light; when the sensor is damaged or the battery runs out (no data from the sensor is received for more than 3 receiving cycles, i.e., 30 minutes), it shows a yellow light; when the detected iron powder exceeds the limit, it shows a red light. The left and right fault locations are distinguished by the lights on both sides. When the receiver alarms, the buzzer sounds while the lights are on, multi-dimensionally prompting the driver to stop for maintenance.

[0095] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be encompassed within the present utility model. Any reference signs in the claims should not be regarded as limiting the claimed rights.

[0096] In addition, it should be understood that although this specification is described according to embodiments, not every embodiment only contains an independent technical solution. This narrative way of the specification is only for clarity. Those skilled in the art should regard the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. An intelligent monitoring system for abnormal wheels, characterized in that, Including: An intelligent sensor unit, a wireless receiving module (3), and an acoustic-optic alarm device (4); The intelligent sensor unit is installed on the wheel hub reducer (6); the intelligent sensor unit includes an adsorption magnetic ring (10), a Hall element module (1), an MCU RF module (2), and a power module (5); The adsorption magnetic ring (10) is used to adsorb metal powder in the lubricating oil of the wheel hub reducer (6); the adsorption magnetic ring (10) is connected to the Hall element module (1); when the metal powder content adsorbed on the adsorption magnetic ring (10) reaches the powder threshold, the Hall element module (1) sends an alarm signal to the wireless receiving module (3) through the MCU RF module (2); the power module (5) is used to supply power to the Hall element module (1) and the MCU RF module (2); The wireless receiving module (3) controls the acoustic-optic alarm device (4) to give an alarm reminder according to the received alarm signal.

2. The abnormal intelligent monitoring system for a wheel hub according to claim 1, wherein The intelligent sensor unit encapsulates the adsorption magnetic ring (10), the Hall element module (1), the MCU RF module (2), and the power module (5) into one body; the appearance of the intelligent sensor unit includes the adsorption magnetic ring (10), a screw thread (20), a sealing rubber ring (30), a housing (40), and a rear cover (50) connected in sequence; The Hall element module (1) is sealed in the housing (40), and the MCU RF module (2) and the power module (5) are sealed in the rear cover (50); The intelligent sensor unit is tightly connected to the wheel hub reducer (6) through the screw thread (20); the sealing rubber ring (30) is used to maintain the tightness inside the intelligent sensor unit.

3. The abnormal intelligent monitoring system for a wheel hub according to claim 2, wherein The Hall element module (1) includes: a Hall sensor A3144, a voltage comparator, an induction sensitivity potentiometer, and an output circuit; When the level signal of the Hall sensor A3144 changes, the voltage comparator amplifies the signal and sends it to the MCU RF module (2) through the output circuit; The induction sensitivity potentiometer is used to adjust the circuit sensitivity.

4. The abnormal intelligent monitoring system for a wheel hub according to claim 1, characterized in that, The powder threshold is: the metal powder reaches 10% of the cross-section of the adsorption magnetic ring (10).

5. The abnormal intelligent monitoring system for a wheel hub according to claim 1, wherein: The MCU RF module (2) uses an Infineon BGT24MTR11 chip.

6. The abnormal intelligent monitoring system for a wheel hub according to claim 1, characterized in that: The acoustic-optic alarm device (4) includes: a chip CD4027BE, a light-emitting diode, and a buzzer; The chip CD4027BE processes the signal received from the wireless receiving module (3) and controls the light-emitting diode and the buzzer to give an acoustic-optic alarm.

7. The hub abnormal intelligent monitoring system according to claim 1, wherein: The intelligent sensor unit performs a detection every 3 minutes. If the metal powder content reaches the powder threshold, the Hall element module (1) sends the alarm signal to the wireless receiving module (3) through the MCU RF module (2); otherwise, the intelligent sensor unit enters the sleep state.

8. The hub abnormal intelligent monitoring system according to claim 7, wherein: If the metal powder content continuously does not reach the powder threshold, the MCU RF module (2) sends a data normal signal to the wireless receiving module (3) every 10 minutes.

9. The abnormal intelligent monitoring system for a wheel hub according to claim 8, characterized in that: The wireless receiving module (3) includes a status indicator light, and the status indicator light has three states: When the status indicator light shows a green light, it indicates that the hub is in normal condition; When the status indicator light shows a yellow light, it indicates that the wireless receiving module (3) has not received the data sent by the MCU radio frequency module (2) for more than 30 minutes; When the status indicator light shows a red light, it indicates that the metal powder content has reached the powder threshold.

10. The hub abnormal intelligent monitoring system according to claim 1, wherein: The MCU radio frequency module (2) has a transmission frequency of 433 MHZ and a transmission distance of 8 to 12 meters.

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