CN110145549A - Automobile intelligent hub-bearing unit monitoring and warning system - Google Patents
Automobile intelligent hub-bearing unit monitoring and warning system Download PDFInfo
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- CN110145549A CN110145549A CN201910313545.0A CN201910313545A CN110145549A CN 110145549 A CN110145549 A CN 110145549A CN 201910313545 A CN201910313545 A CN 201910313545A CN 110145549 A CN110145549 A CN 110145549A
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- Prior art keywords
- bearing
- signal
- analysis chip
- signal analysis
- bearing unit
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B27/00—Hubs
- B60B27/0047—Hubs characterised by functional integration of other elements
- B60B27/0068—Hubs characterised by functional integration of other elements the element being a sensor
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
- F16C41/00—Other accessories, e.g. devices integrated in the bearing not relating to the bearing function as such
- F16C41/008—Identification means, e.g. markings, RFID-tags; Data transfer means
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/18—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer
- G01K7/183—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a linear resistance, e.g. platinum resistance thermometer characterised by the use of the resistive element
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M13/00—Testing of machine parts
- G01M13/04—Bearings
- G01M13/045—Acoustic or vibration analysis
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Rolling Contact Bearings (AREA)
Abstract
The present invention relates to the monitoring systems of bearing, automobile intelligent hub-bearing unit monitoring and warning system, including temperature sensor, vibrating sensor, signal analysis chip and the battery powered to signal analysis chip, temperature sensor, vibrating sensor are all connect with signal analysis chip；It further include encrypting module, wireless sending module, Vehicle Controller, warning device and LCD display, encrypting module is mounted on signal analysis chip, wireless sending module, which connect with signal analysis chip and passes through encrypting module, is sent to Vehicle Controller for the information after analysis, LCD display connect with Vehicle Controller and shows bearing temperature value and vibration frequency, and warning device is connect with Vehicle Controller.The destruction of equalized temperature is the important evidence of monitoring and early warning, the real-time monitoring of plateform system through the invention and timely early warning before hub bearing fails, and realizes prediction and the on-call maintenance of bearing failure, significantly improves the safety and reliability of automobile.
Description
Technical field
The present invention relates to the monitoring system of bearing more particularly to automobile intelligent hub-bearing unit monitoring and warning systems.
Background technique
In China, motor vehicles for civilian use ownership continues to increase.Hub-bearing unit is an important spare part of automobile, master
Wanting function is support automobile load and guidance hub rotation, needs to bear radial load and axial load simultaneously, so bearing
Timely early warning is wanted in failure.Frictional impact can occur between inner components for hub bearing during operation, and heat can not stopping pregnancy
It is raw with it is lost, may eventually form thermal balance.If bearing occur inner body crackle, fracture, mutually gluing, grease dry up it is isometric
Failure phenomenon is held, then heat production can quickly increase, and bearing thermal balance can be broken, and temperature meeting rapid increase ultimately forms one newly
Thermal balance, thermal equilibrium temperature at this time can weigh much higher than Yuanping City, while bearing high temperature can further destroy bearing components, fastly
Speed breaks new balance and further establishes the thermal balance of higher temperature, and the vicious circle of formation temperature.
It is all to detect indirectly that bearing temperature is detected in existing monitoring system, i.e., temperature sensor is mounted on bearing periphery,
The temperature of bearing, such as application number: 201711175675.X are detected by heat transfer, denomination of invention: bearing working state prison
Control system.
Summary of the invention
The present invention is mentioned for the disadvantage for the sensor stability difference for detecting bearing temperature value and vibration values in the prior art
For automobile intelligent hub-bearing unit monitoring and warning system.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals:
Automobile intelligent hub-bearing unit monitoring and warning system, including the temperature sensor, straight being directly installed on bearing
Connect the vibrating sensor being mounted on bearings, signal analysis chip and to signal analysis chip power battery, temperature sensor,
Vibrating sensor all connect with signal analysis chip and the signal monitored is transferred to signal analysis chip；It further include encryption mould
Block, wireless sending module, Vehicle Controller, warning device and LCD display, encrypting module are mounted on signal analysis chip,
Wireless sending module, which connect with signal analysis chip and passes through encrypting module, is sent to Vehicle Controller for the information after analysis,
LCD display connect with Vehicle Controller and shows bearing temperature value and vibration frequency, and warning device is connect with Vehicle Controller,
Warning device has been more than setting value for temperature indicator value and vibration frequency.
Before the destruction of equalized temperature devises a set of solution hub bearing failure before failing the present invention is based on hub bearing
Monitoring and warning system.The destruction of equalized temperature is the important evidence of monitoring and early warning before hub bearing fails, through the invention
The real-time monitoring of plateform system and timely early warning realize prediction and the on-call maintenance of bearing failure, significantly improve vapour
The safety and reliability of vehicle.
Preferably, further including shell, heat insulating mattress, collet, signal lever and vibration transmitting metal bar；Temperature sensor
Be mounted on shell, signal analysis chip and battery are all mounted in shell, heat insulating mattress be sleeved on temperature sensor and with
The end face of shell connects；Collet is mounted on the inner wall of shell channel and connect with heat insulating mattress, on the channel in collet
Fixed plate for fixing battery is installed；Signal lever passes through fixed plate and is firmly connected with it, and signal lever one end is pierced by heat-insulated
Gasket is fixedly connected with temperature sensor, and the other end is fixedly connected with signal analysis chip, and signal lever adopts temperature sensor
The signal of collection is transferred to signal analysis chip；Vibration transmitting metal bar one end is connect with shell, the other end and vibrating sensor
Connection, vibrating sensor acquire the vibration signal of bearing by vibration transmitting metal bar and are sent to the analysis of signal analysis chip.
On the one hand the collected temperature signal of temperature sensor can be sent to signal analysis chip by signal lever, on the other hand can prop up
Fixed plate is supportted, ensure that the stability of fixed plate, to ensure that the stability of battery.Collet and heat insulating mattress are for protecting
Battery and signal analysis chip in it, guarantee that they can be worked normally, while heat insulating mattress alsos for preventing shell and wheel
Hub axle, which is held, occurs rigidity collision.
Preferably, shell includes bolt, screw head and cover board, first passage is equipped in bolt, it is logical to be equipped with second in screw head
Road, cover plate lid close second channel port simultaneously be fixedly connected with screw head, first passage is connected with the second channel, first passage it is straight
Diameter is less than the diameter of second channel, and collet one end is mounted in first passage, and the other end is mounted in second channel.Bolt
With the shell of conch shape, facilitate people that sensor is installed；Sensor concealment is good, prevents criminal from destroying.
Preferably, fixed plate is mounted on the collet in first passage, signal analysis chip is mounted on second channel
On interior collet.
Preferably, vibrating sensor is mounted in screw head, vibration transmitting metal bar is accommodated in second channel.This sensing
Device can also detect the vibration signal of bearing simultaneously, and the form and construction of the impaired front and back of same components change, by phase
It is different with the amplitude that is showed after interference and frequency domain, this be monitoring and distinguish the impaired failure of hub bearing components it is important according to
According to.Vibration transmitting metal bar is mounted in second channel, on the one hand compact-sized, on the other hand since second channel is independent empty
Between, without external interference, vibration transmitting metal bar detection accuracy is high.
Preferably, further including signal transmitting antenna, signal transmitting antenna is mounted in screw head, signal transmitting antenna and letter
The connection of number analysis chip, signal transmitting antenna signal analysis chip is analyzed after temperature signal and vibration signal launch.
Signal transmitting antenna signal analysis chip can be analyzed after temperature information and vibration information be sent to and drive indoor center
Operation bench facilitates people that can understand bearing working environment in time.
Preferably, being fixed with axle sleeve on signal lever between signal analysis chip and cover board, quantity is fixed on axle sleeve
At least flabellum of two panels, the first ventilation opening of quantity at least two is offered on cover board, and the inner face installation of cover board is useful
The first elastic cover plate of the first ventilation opening is closed in lid, when bearing unit is static, the first elastic cover plate lid closes the first ventilation opening, bearing
When unit rotational, the first elastic cover plate is inwardly opened.Collet be not completely it is heat-insulated, bearing unit rotate over time,
Temperature in collet also can be increased constantly, and for bearing unit in rotation, the first elastic cover plate opens the first ventilation opening, and first is logical
Air port makes collet and outer ring form convection current, reaches heat dissipation effect, axle sleeve and flabellum is fixedly connected with signal lever thereon,
It is rotated as bearing rotates, flabellum rotation accelerates the cross-ventilation in collet, to accelerate to radiate.
Preferably, screw head is hexagonal screw head, each side of screw head is designed with mounting groove, and the bottom surface of mounting groove is equipped with
The second ventilation opening being connected to collet is equipped in mounting groove for covering the second elastic cover plate for closing the second ventilation opening, bearing
When unit is static, the second elastic cover plate lid closes the second ventilation opening, and when bearing unit rotates, the second elastic cover plate is opened.Due to axis
When forwarding dynamic, centrifugal action is generated, the second elastic slice is thrown away, and the air in collet can take a breath by the second ventilation opening
Heat dissipation, the heat further speeded up in collet disperse.
Bearing case is also included, bearing case is equipped with the first groove, and the bottom surface of the first groove is equipped with the second groove, and temperature passes
Sensor is mounted in the second groove, and shell is mounted in the first groove and is threadedly coupled with bearing case.Outside sensor and bearing
Shell is threadedly coupled, and sensor is convenient for disassembly and assembly, and temperature sensor and the second groove contact area are wide, temperature sensor detection effect
It is good.
Preferably, being equipped with the first mounting hole in bearing case, the first inner ring, the first inner ring are installed in the first mounting hole
The first retainer that shape is cone is installed between bearing case, the first roller is installed on the first retainer；Bearing
The second mounting hole is equipped in shell, the second mounting hole is connected to the first mounting hole, and the second mounting hole interior installing hole has the second inner ring,
The second retainer that shape is cone is installed between the second inner ring and bearing case, the second rolling is installed on the second retainer
Son.
The present invention is due to using above technical scheme, with significant technical effect:
The destruction of equalized temperature is the important evidence of monitoring and early warning, platform system through the invention before hub bearing fails
The real-time monitoring of system and timely early warning realize prediction and the on-call maintenance of bearing failure, significantly improve the peace of automobile
Full property and reliability.Sensor is embedded on hub bearing, and the precision of sensor detection is high, and system is able to record and shows in real time
Show hub-bearing unit temperature information, and the hub-bearing unit of the failure of early warning in time.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of present system frame.
Fig. 2 is the structural schematic diagram of sensor in the present invention.
Fig. 3 is the structural schematic diagram of shell in Fig. 2.
Fig. 4 is hub-bearing unit and sensor assembling structure schematic diagram in invention.
Fig. 5 is the schematic cross-sectional view of hub-bearing unit in Fig. 4.
The toponym that each number designation is referred in the figures above is as follows: where 10-shells, 11-temperature sensing
Device, 12-signal analysis chips, 13-batteries, 14-signal leveves, 15-fixed plates, 16-vibration transmitting metal bars, 17-vibrations
Dynamic sensor, 19-bearing cases, the 20-the first inner ring, the 21-the first retainer, the 22-the first roller, the 23-the second inner ring,
24-the second retainer, the 25-the second roller, 26-heat insulating mattress, 27-axle sleeves, 28-flabellums, the 29-the second elastic cover plate,
30-collets, 31-encrypting modules, 32-wireless sending modules, 33-Vehicle Controllers, 34-warning devices, 35-LCD
It is display, 36-speed probes, 101-bolts, 102-screw heads, 103-cover boards, the 191-the first groove, 192-the second recessed
Slot, the 193-the first mounting hole, the 194-the second mounting hole, 1011-first passages, 1021-second channels, 1022-installations
Slot, the 1031-the first ventilation opening.
Specific embodiment
Present invention is further described in detail with embodiment by 1-5 with reference to the accompanying drawing.
Embodiment 1
Automobile intelligent hub-bearing unit monitoring and warning system, including be directly installed on bearing temperature sensor 11,
Vibrating sensor 17, signal analysis chip 12 and the battery 13 powered to signal analysis chip 12 being directly installed on bearing,
Battery 13 is button cell.Temperature sensor 11, vibrating sensor 17 all connect with signal analysis chip 12 and will monitor
Signal is transferred to signal analysis chip 12；It further include encrypting module 31, wireless sending module 32, Vehicle Controller 33, alarm dress
34 and LCD display 35 are set, encrypting module 31 is mounted on signal analysis chip, wireless sending module 32 and signal analysis chip
12 connect and the information after analysis are sent to Vehicle Controller 33, LCD display 35 and vehicle-mounted control by encrypting module 31
Device 33 connects and shows bearing temperature value and vibration frequency, and warning device 34 is connect with Vehicle Controller 33, and warning device 34 is used
In temperature indicator value and vibration frequency be more than setting value.
It further include vehicle condition detection system, vehicle condition detection system includes speed probe 36, speed probe 36
Current vehicle operating status is detected, speed probe 36 is connect with signal analysis chip 12, if vehicle remains static, prison
Detection early warning system can close idle systems, 12 closing temperature sensor 11 of signal analysis chip and wireless sending module 32, so that
Temperature sensor 11 and wireless sending module 32 are in closed state, i.e. temperature monitoring system in a dormant state.If automobile
Condition detecting system detects that automobile is in operating status, and temperature sensor 11 can acquire a temperature value, temperature letter every 1S
Number agreement encryption and send through wireless sending module 32 after the processing of signal analysis chip 12, then through encrypting module 31
To Vehicle Controller 33.When temperature value is higher than alarm temperature point, which can be defined as exception by signal analysis chip 12
Temperature is sent to Vehicle Controller 33 by wireless sending module 32, and Vehicle Controller 33 triggers warning device 34, reminds and drives
Member's replacement in time and maintenance hub bearing.
Vehicle Controller 33 is used to receive the data of temperature sensor 11 and carries out storage analysis, by CAN bus and
RS485 bus is connected with onboard system, and temperature value can be shown on LCD display 35 in real time, can also show historical temperature curve.
When temperature is more than alarming value, monitoring and warning system issues alarm and driver is reminded to carry out respective handling, to guarantee to run over
Vehicle safety in journey.Vehicle Controller 33, which receives, not only to be triggered alarm system after abnormal temperature and can also trigger long-range transmission
System, whether prompting driver's unrestricted choice that the life-cycle information of hub bearing is sent to long-range inspection center.
1, temperature acquisition scheme
Temperature acquisition position is wheel hub wheel shaft temperature, which reaches as high as 200 DEG C, and temperature sensor 11 uses
PT100 platinum resistance temperature sensor, temperature acquisition range are -200 DEG C ---+850 DEG C, the design good anti-vibration, stability is good,
Accuracy height, good linearity, range are wide.
2, Zigbee protocol encipherment scheme
ZigBee using 2.4GHz frequency transmit data, transmission speed is very fast, and with 16 can agreement encryption letter
Road, temperature sensor 11 can select that the smallest channel is interfered to carry out networking when carrying out networking with Vehicle Controller 33, to guarantee
The stability of data transmission；ZigBee, which has, repeatedly transmits mechanism, it is ensured that vehicle control syetem can receive sensing every time
The data of device.
3, wireless transmission scheme
The transmission of wireless sending module 32 is transmitted using ZigBee, and ZigBee scheme is newest using Silicon labs
EFR32MG system class, the chip emission power maximum is up to 19dbm, the reachable -102.7dbm of sensitivity, and electric current is low under sleep pattern
To 2.2uA.For chip operation in 19dbm, transmission range is in the visible range up to 400 meters.Temperature reception is RS485 mode,
Using standard RS485 interface, integrated temperature measuring circuit, sensor is as 485 slaves.
4, hardware scheme
(1) to avoid influence of the temperature to sensor, separating treatment is done using temperature acquisition probe and circuit transmission part,
It is thermally insulated among temperature sensor 11 and part of detecting isolation using heat-barrier material using passing；
(2) information transmission receiving channel selects the road 1-16, and transmission range is 100 meters；
(3) temperature acquisition sensor probe use PT100,0-250 DEG C of temperature range；
(4) power supply mode selects button cell power supply, and high temperature packaging is selected to ensure 3 years use standards.
5, technical specification scheme
(1) temperature range: 0-250 DEG C；
(2) mode of connection: 4 line systems, power supply line VCC, GND, communication line 485A, 485B；
(3) address number: 1-254 (is defaulted as 1)；
(4) baud rate: 2400bit/s, 4800bit/s, 9600bit/s (default 9600bit/s)；
(5) data bit: 8；
(6) stop position: 1.
Monitoring and warning system further includes shell 10, and temperature sensor 11 is installed on the housing 10, be equipped in shell 10 to
The battery 13 that signal analysis chip 12 is powered, temperature sensor 11 connect with signal analysis chip 12 and by the temperature signals of acquisition
It is sent to signal analysis chip 12, temperature sensor 11 can be spaced the temperature signal of acquisition in 1 second, and temperature information is passed to
The Temperature Treatment module of signal analysis chip 12, signal analysis chip 12 can analyze temperature signal, and intelligent recognition temperature be
Normal condition or failure state, if it is normal condition, signal can be passed through wireless sending module 32 by signal analysis chip 12
It is sent to the center operation bench of driver's cabin, if temperature has been more than alarm temperature point, temperature signal analysis chip can differentiate temperature
Abnormal conditions, on the one hand, temperature anomaly information is passed into the vibration processing module in signal analysis chip 12 and is further analyzed
Bearing failure component, on the other hand, signal analysis chip 12 can send driver's cabin by wireless sending module 32 for signal
Center operation bench, center operation bench alarm and show abnormal temperature.
Further include heat insulating mattress 26, collet 30, signal lever 14, vibrate transmitting metal bar 16 and vibrating sensor 17, every
Heat pad piece 26 is sleeved on temperature sensor 11 and connect with the end face of shell 10, and the end face of heat insulating mattress 26 and shell 10 is glued
It connects, connect on the channel that collet 30 is mounted in shell 10 and with heat insulating mattress 26, installed on the channel in collet 30
Having quantity is two pieces of fixed plate 15, and connection is interference fitted between fixed plate 15 and collet 30, and battery 13 is mounted on fixed plate
On 15, battery 13 is button cell, and there are six button cells for fixation in one piece of fixed plate 15.Signal analysis chip 12 be mounted on every
In hot jacket 30, temperature has been isolated in collet 30, ensure that signal analysis chip 12 and battery 13 can work normally.
Signal lever 14 passes through fixed plate 15 and is interference fitted with it and connect, and 14 one end of signal lever is pierced by heat insulating mattress 26 and temperature
Degree sensor 11 is fixedly connected, and the other end is fixedly connected with signal analysis chip 12, and signal lever 14 adopts temperature sensor 11
The signal of collection is transferred to signal analysis chip 12.
Vibrating sensor 17 is mounted in screw head 102, and vibration transmitting metal bar 16 is accommodated in second channel 1021, is vibrated
Transmitting 16 one end of metal bar is connect with shell 10, and the other end is connect with vibrating sensor 17, and vibrating sensor 17 passes through vibration
Transmitting metal bar 16 acquires the vibration signal of bearing and is sent to the analysis of signal analysis chip 12.Hub bearing is during operation
By external interference, bearing integrally will appear an oscillation phenomenon.Due to Bearing inner components form, vary in weight, itself
Transmission function it is different, then by identical interference signal, the vibration time domain that is showed, frequency domain are different, this is monitoring and area
Divide the important evidence of hub bearing difference components.Likewise, the form and construction of the impaired front and back of same components change,
By the amplitude showed after same disturbance and frequency domain difference, this is monitoring and the weight for distinguishing the impaired failure of hub bearing components
It will foundation.The principle different according to different components vibration frequencies of signal analysis chip 12, thus by the vibration of different components
It separates, intelligent recognition normal vibration and failure vibration, and the information analyzed is passed to by wireless sending module 32
Console is entreated, to realize prediction bearing failure time point in time.
Shell 10 includes bolt 101, screw head 102 and cover board 103, is equipped with first passage 1011, screw head 102 in bolt 101
Interior to be equipped with second channel 1021, the lid of cover board 103 closes the port of second channel 1021 and is fixedly connected with screw head 102, first passage
1011 and second channel 1021 be all cylindrical channel, first passage 1011 is connected to second channel 1021, first passage 1011
Diameter be less than the diameter of second channel 1021,30 one end of collet is mounted in first passage 1011, and the other end is mounted on
In second channel 1021.Fixed plate 15 is mounted on the collet 30 in first passage 1011, and signal analysis chip 12 is mounted on
On collet 30 in second channel 1021.The outer end of screw head 102 is covered with cover board, and cover board and screw head 102 are glued together,
Signal lever 14 passes through signal analysis chip 12 and is fixedly connected with cover board.
It further include wireless sending module 32, wireless sending module 32 is mounted in screw head 102, wireless sending module 32 and letter
Number analysis chip 12 connects, wireless sending module 32 signal analysis chip 12 is analyzed after temperature signal and vibration signal emit
It goes out.
It is fixed with axle sleeve 27 on signal lever 14 between signal analysis chip 12 and cover board 103, is fixed with number on axle sleeve 27
Amount is at least the flabellum 28 of two panels, and the quantity of flabellum 28 is two panels, axle sleeve 27 and 28 integral type of flabellum, axle sleeve 27 and signal lever 14
Screw is fixedly connected, and the first ventilation opening 1031 of quantity at least two, the first ventilation opening of the present embodiment are offered on cover board 103
1031 quantity is six, and the inner face of cover board 103 is equipped with for covering the first elastic cover plate for closing the first ventilation opening 1031, axis
When bearing unit is static, the first elastic cover plate lid closes the first ventilation opening 1031, and when bearing unit rotates, the first elastic cover plate is inwardly beaten
It opens.
Screw head 102 is hexagonal screw head, each side of screw head 102 is designed with mounting groove 1022, the bottom of mounting groove 1022
Face is equipped with the second ventilation opening being connected to collet 30, is equipped in mounting groove 1022 for covering the second bullet for closing the second ventilation opening
Property cover plate 29, when bearing unit is static, the second elastic lid of cover plate 29 closes the second ventilation opening, when bearing unit rotates, the second elasticity
Cover plate 29 is opened.
Embodiment 2
Embodiment 2 and 1 feature of embodiment are essentially identical, the difference is that embodiment 2 further includes bearing case 19；Sensor,
The bottom surface of first groove 191 is equipped with the second groove 192, and temperature sensor 11 is mounted in the second groove 192, and shell 10 is mounted on
It is threadedly coupled in first groove 191 and with bearing case 19.It is in normal condition or mistake that signal analysis chip 12, which analyzes temperature,
Effect state, if it is normal condition, signal analysis chip 12 can send driver's cabin by wireless sending module 32 for signal
Center operation bench, if temperature has been more than alarm temperature point, temperature signal analysis chip can differentiate temperature anomaly situation, a side
Temperature anomaly information is passed to the vibration processing module in signal analysis chip 12 and further analyzes bearing inoperative component by face,
On the other hand, signal analysis chip 12 can send signal to by wireless sending module 32 center operation bench of driver's cabin, in
Centre operation bench alarms and shows abnormal temperature.For hub bearing during operation by external interference, bearing integrally will appear one
A oscillation phenomenon.It due to Bearing inner components form, varies in weight, the transmission function of itself is different, then by identical
Interference signal, the vibration time domain showed, frequency domain are different, this be monitoring with distinguish hub bearing difference components it is important according to
According to.Likewise, the form and construction of the impaired front and back of same components change, by the amplitude showed after same disturbance and
Frequency domain is different, this is monitoring and the important evidence for distinguishing the impaired failure of hub bearing components.Signal analysis chip 12 is not according to
The different principle with components vibration frequency, to the Separation by vibration of different components be opened, intelligent recognition normal vibration and mistake
Effect vibration, and the information analyzed is passed into central control board by wireless sending module 32, to realize prediction axis in time
Hold out-of-service time point.
It is equipped with the first mounting hole 193 in bearing case 19, the first inner ring 20 is installed in first mounting hole 193, in first
First retainer 21 is installed, the first retainer 21 is conical retainer, the first retainer between circle 20 and bearing case 19
First roller 22 is installed on 21.
The second mounting hole 194 is equipped in shell 19, the second mounting hole 194 is connected to the first mounting hole 193, the second mounting hole
194 interior installing holes have the second inner ring 23, and the second retainer 24 is equipped between the second inner ring 23 and bearing case 19, and second keeps
Frame 24 is conical retainer, is equipped with the second roller 25 on the second retainer 24.
Embodiment 3
Embodiment 3 and 1 feature of embodiment are essentially identical, and shell 10 is bolt 101 in different embodiments 3, without screw head
102, battery 13 and signal analysis chip 12 are all mounted on the first passage 1011 in bolt 101.
In short, the foregoing is merely presently preferred embodiments of the present invention, it is all according to equalization made by scope of the present invention patent
Variation and modification, shall all be covered by the patent of the invention.
Claims (10)
1. automobile intelligent hub-bearing unit monitoring and warning system, including be directly installed on bearing temperature sensor (11),
Vibrating sensor (17), signal analysis chip (12) and the electricity powered to signal analysis chip (12) being directly installed on bearing
Pond (13), the signal that temperature sensor (11), vibrating sensor (17) all connect and will monitor with signal analysis chip (12)
It is transferred to signal analysis chip (12)；It is characterized by also including encrypting modules (31), wireless sending module (32), vehicle-mounted control
Device (33), warning device (34), LCD display (35) and speed probe (36) processed, encrypting module (31) are mounted on signal point
It analyses on chip, wireless sending module (32) connect with signal analysis chip (12) and passes through encrypting module (31) for the letter after analysis
Breath is sent to Vehicle Controller (33), and LCD display (35) connect with Vehicle Controller (33) and shows bearing temperature value and vibration
Dynamic frequency, warning device (34) are connect with Vehicle Controller (33), and warning device (34) is used for temperature indicator value and vibration frequency
It has been more than setting value, speed probe (36) is connect with signal analysis chip (12), and signal analysis chip (12) is believed by revolving speed
The acquisition of number control temperature sensor (11) and wireless sending module (32) are sent.
2. automobile intelligent hub-bearing unit monitoring and warning system according to claim 1, it is characterised in that: further include shell
Body (10), heat insulating mattress (26), collet (30), signal lever (14) and vibration transmitting metal bar (16)；Temperature sensor (11)
It is mounted on shell (10), signal analysis chip (12) and battery (13) are all mounted in shell (10), heat insulating mattress (26) set
It is connect on temperature sensor (11) and with the end face of shell (10)；Collet (30) is mounted on the inner wall in shell (10) channel
It above and with heat insulating mattress (26) connect, the fixed plate for fixing battery (13) is installed on the channel in collet (30)
(15)；Signal lever (14) is passed through and fixed plate (15) and is firmly connected with it, signal lever (14) one end be pierced by heat insulating mattress (26) with
Temperature sensor (11) is fixedly connected, and the other end is fixedly connected with signal analysis chip (12), and signal lever (14) passes temperature
The signal of sensor (11) acquisition is transferred to signal analysis chip (12)；Vibration transmitting metal bar (16) one end and shell (10) are even
It connects, the other end is connect with vibrating sensor (17), and vibrating sensor (17) acquires bearing by vibration transmitting metal bar (16)
Vibration signal and be sent to signal analysis chip (12) analysis.
3. automobile intelligent hub-bearing unit monitoring and warning system according to claim 1, it is characterised in that: shell (10)
Including bolt (101), screw head (102) and cover board (103), first passage (1011) are equipped in bolt (101), in screw head (102)
Equipped with second channel (1021), cover board (103) lid closes the port of second channel (1021) and is fixedly connected with screw head (102), the
One channel (1011) is connected to second channel (1021), and the diameter of first passage (1011) is less than the straight of second channel (1021)
Diameter, collet (30) one end are mounted in first passage (1011), and the other end is mounted in second channel (1021).
4. automobile intelligent hub-bearing unit monitoring and warning system according to claim 3, it is characterised in that: fixed plate
(15) it is mounted on the collet (30) in first passage (1011), signal analysis chip (12) is mounted on second channel (1021)
On interior collet (30).
5. automobile intelligent hub-bearing unit monitoring and warning system according to claim 3, it is characterised in that: vibrating sensing
Device (17) is mounted on screw head (102), and vibration transmitting metal bar (16) is accommodated in second channel (1021).
6. automobile intelligent hub-bearing unit monitoring and warning system according to claim 3, it is characterised in that: further include letter
Number transmitting antenna (18), signal transmitting antenna (18) are mounted on screw head (102), and signal transmitting antenna (18) and signal analyze core
Piece (12) connection, signal transmitting antenna (18) by signal analysis chip (12) analyze after temperature signal and vibration signal launch
It goes.
7. being existed according to automobile intelligent hub-bearing unit monitoring and warning system, feature described in claim 2-6 any one
In: it is fixed with axle sleeve (27) on the signal lever (14) between signal analysis chip (12) and cover board (103), it is fixed on axle sleeve (27)
There is quantity to be at least the flabellum (28) of two panels, the first ventilation opening (1031) of quantity at least two offered on cover board (103),
The inner face of cover board (103) is equipped with for covering the first elastic cover plate for closing the first ventilation opening (1031), when bearing unit is static,
First elastic cover plate lid closes the first ventilation opening (1031), and when bearing unit rotates, the first elastic cover plate is inwardly opened.
8. automobile intelligent hub-bearing unit monitoring and warning system according to claim 7, it is characterised in that: screw head
It (102) is hexagonal screw head, each side of screw head (102) is designed with mounting groove (1022), and the bottom surface of mounting groove (1022) is set
There is the second ventilation opening being connected to collet (30), is equipped in mounting groove (1022) for covering the second bullet for closing the second ventilation opening
Property cover plate (29), when bearing unit is static, the second elastic cover plate (29), which is covered, closes the second ventilation opening, when bearing unit rotates, second
Elastic cover plate (29) outwardly opens.
9. automobile intelligent hub-bearing unit monitoring and warning system according to claim 8, it is characterised in that: including bearing
Shell (19), bearing case (19) are equipped with the first groove (191), and the bottom surface of the first groove (191) is equipped with the second groove
(192), temperature sensor (11) is mounted in the second groove (192), and shell (10) is mounted in the first groove (191) and and axis
Hold shell (19) threaded connection.
10. automobile intelligent hub-bearing unit monitoring and warning system according to claim 9, it is characterised in that: outside bearing
The first mounting hole (193) are equipped in shell (19), are equipped with the first inner ring (20) in the first mounting hole (193), the first inner ring (20)
The first retainer (21) that shape is cone is installed between bearing case (19), the is equipped on the first retainer (21)
One roller (22)；The second mounting hole (194) are equipped in bearing case (19), the second mounting hole (194) and the first mounting hole (193)
Connection, the second mounting hole (194) interior installing hole have the second inner ring (23), install between the second inner ring (23) and bearing case (19)
Having shape is the second retainer (24) of cone, is equipped with the second roller (25) on the second retainer (24).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313545.0A CN110145549B (en) | 2019-04-18 | 2019-04-18 | Monitoring and early warning system for automobile intelligent hub bearing unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910313545.0A CN110145549B (en) | 2019-04-18 | 2019-04-18 | Monitoring and early warning system for automobile intelligent hub bearing unit |
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| CN110145549A true CN110145549A (en) | 2019-08-20 |
| CN110145549B CN110145549B (en) | 2020-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910313545.0A Active CN110145549B (en) | 2019-04-18 | 2019-04-18 | Monitoring and early warning system for automobile intelligent hub bearing unit |
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| CN (1) | CN110145549B (en) |
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| CN112964468A (en) * | 2021-02-05 | 2021-06-15 | 河钢乐亭钢铁有限公司 | Method and device for monitoring state of wheel bearing of horizontal loop vehicle on acid rolling production line |
| EP4186774A1 (en) | 2021-11-24 | 2023-05-31 | Tóth, Péter | Wireless bearing monitoring system with mobile measuring device for vehicles, agricultural and industrial machinery |
| CN117249913A (en) * | 2023-11-20 | 2023-12-19 | 江苏金强钢轮有限公司 | Automobile hub bearing temperature monitoring alarm system |
| CN117734347A (en) * | 2024-02-20 | 2024-03-22 | 浙江大铭汽车零部件有限公司 | Hub unit, monitoring method and application thereof |
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| CN117734347B (en) * | 2024-02-20 | 2024-05-03 | 浙江大铭汽车零部件有限公司 | Hub unit, monitoring method and application thereof |
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|---|---|
| CN110145549B (en) | 2020-11-20 |
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