CN109163871A - Flitting rocker arm comprehensive state parameter on-line monitoring device - Google Patents
Flitting rocker arm comprehensive state parameter on-line monitoring device Download PDFInfo
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- CN109163871A CN109163871A CN201811333632.4A CN201811333632A CN109163871A CN 109163871 A CN109163871 A CN 109163871A CN 201811333632 A CN201811333632 A CN 201811333632A CN 109163871 A CN109163871 A CN 109163871A
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- 238000012806 monitoring device Methods 0.000 title claims abstract description 17
- 238000012544 monitoring process Methods 0.000 claims abstract description 71
- 239000007788 liquid Substances 0.000 claims abstract description 42
- 238000012545 processing Methods 0.000 claims abstract description 41
- 230000036541 health Effects 0.000 claims abstract description 27
- 238000004891 communication Methods 0.000 claims abstract description 19
- 239000006061 abrasive grain Substances 0.000 claims abstract description 18
- 230000005540 biological transmission Effects 0.000 claims abstract description 14
- 230000002463 transducing effect Effects 0.000 claims abstract description 10
- 238000007654 immersion Methods 0.000 claims abstract description 4
- 239000003245 coal Substances 0.000 claims description 17
- 238000005065 mining Methods 0.000 claims description 16
- 238000003860 storage Methods 0.000 claims description 8
- 238000002955 isolation Methods 0.000 claims description 7
- 238000005520 cutting process Methods 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 4
- 208000032369 Primary transmission Diseases 0.000 claims description 3
- 239000003638 chemical reducing agent Substances 0.000 claims description 3
- 238000004880 explosion Methods 0.000 claims description 3
- 239000000446 fuel Substances 0.000 claims description 3
- 230000007246 mechanism Effects 0.000 claims description 3
- 239000003921 oil Substances 0.000 abstract description 39
- 230000003862 health status Effects 0.000 abstract description 7
- 239000010687 lubricating oil Substances 0.000 abstract description 7
- 238000006243 chemical reaction Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 5
- 238000003745 diagnosis Methods 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 3
- 239000002817 coal dust Substances 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 229910001338 liquidmetal Inorganic materials 0.000 description 3
- 238000005461 lubrication Methods 0.000 description 3
- 238000010606 normalization Methods 0.000 description 3
- 241001269238 Data Species 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000002790 cross-validation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000001804 emulsifying effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 238000002203 pretreatment Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 230000003595 spectral effect Effects 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Classifications
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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
- G01M7/00—Vibration-testing of structures; Shock-testing of structures
- G01M7/02—Vibration-testing by means of a shake table
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C25/00—Cutting machines, i.e. for making slits approximately parallel or perpendicular to the seam
- E21C25/06—Machines slitting solely by one or more cutting rods or cutting drums which rotate, move through the seam, and may or may not reciprocate
- E21C25/10—Rods; Drums
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
- G01N27/22—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance
- G01N27/221—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance by investigating capacitance by investigating the dielectric properties
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- Chemical & Material Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Immunology (AREA)
- Analytical Chemistry (AREA)
- Pathology (AREA)
- Engineering & Computer Science (AREA)
- General Health & Medical Sciences (AREA)
- Biochemistry (AREA)
- Health & Medical Sciences (AREA)
- Mining & Mineral Resources (AREA)
- Dispersion Chemistry (AREA)
- Geochemistry & Mineralogy (AREA)
- Mechanical Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
- Testing Or Calibration Of Command Recording Devices (AREA)
Abstract
The present invention relates to a kind of flitting rocker arm comprehensive state parameter on-line monitoring devices, including intrinsic safety type rocker arm vibration monitoring module, intrinsic safety type oil liquid health monitoring module and the pre- diagnostic center module of intrinsic safety type, these three modules are communicated each by wired communication mode and/or communication with pre- diagnostic center module, monitoring data information is transmitted to pre- diagnostic center module, oil liquid health monitoring module includes the electromagnetic type abrasive grain sensor of the first sensor signal processing circuit and immersion, dielectric cure sensor and temperature sensor, electromagnetic type abrasive grain sensor, the sensing element of dielectric cure sensor and temperature sensor is directly immersed in rocker arm transmission system shell in lubricating oil, their signal output end is all connected with the transducing signal input terminal of the first sensor signal processing circuit.The present invention can detect the health status of rocker arm automatically, carry out fault location, thus improve rocker arm reliability and coalcutter Homes Using TV.
Description
Technical field
The present invention relates to a kind of rocker arm of coal mining machine transmission system specific fault, failure predication presence or absence and abort situation
The a set of trouble-shooter determined.
Background technique
Coalcutter is the key equipment of underground coal mine fully-mechanized mining working production, is that coal mining enterprise realizes that high-efficiency intensifying is adopted
Coal reduces coal mine major accident and improves the important technology equipment of working face working condition.According to statistics, certain hundred million tons of mining area of modernization
Winning machine cutting part rocker arm failure accounts for coalcutter failure rate average out to 34.2% in recent years.Rocker arm failure leads to the booting of coalcutter
One of an important factor for rate is low, is influence coal mining activity efficiency.
There are many failure causes of rocker arm of coal mining machine, and failure is caused by many reasons at one sometimes, such as both may include
Mechanical reason, it is also possible to the reason of including lubricating oil quality, simple one side reason of eliminating can not thoroughly release the failure, or
After only releasing failure by elimination one aspect reason, identical failure may occur again quickly.Also a kind of basis sometimes
The reason of many places can be caused different performance, be only difficult to which kind of reason determination is by a kind of performance, therefore in order to grasp in time
Position and reason occur for the type of rocker arm failure, even predict the type of failure, position and reason occurs to do in time
In advance, a kind of system that multi-parameter can be supported to monitor on-line is needed.
Summary of the invention
For the drawbacks described above for overcoming the prior art, the present invention provides a kind of flitting rocker arm comprehensive state parameters to exist
Line monitoring device can detect a variety of important parameters of the multiple significant points of rocker arm automatically, notify rocker arm state at once, carry out failure
Thus positioning improves rocker arm reliability and coalcutter Homes Using TV.
Main technical schemes of the invention have:
A kind of flitting rocker arm comprehensive state parameter on-line monitoring device, including intrinsic safety type rocker arm vibration monitoring mould
Block, intrinsic safety type oil liquid health monitoring module and the pre- diagnostic center module of intrinsic safety type, the rocker arm vibration monitoring module and oil liquid are strong
Health monitoring modular is communicated each by wired communication mode and/or communication with the pre- diagnostic center module,
Monitoring data information is transmitted to the pre- diagnostic center module, the pre- diagnostic center module carries out these monitoring data information
Normalization data processing, and the current state information of rocker arm is exported, the oil liquid health monitoring module includes first sensor letter
Electromagnetic type abrasive grain sensor, dielectric cure sensor and the temperature sensor of number processing circuit and immersion, electromagnetic type abrasive grain sensing
Device, dielectric cure sensor and temperature sensor are installed on shearer ranging arm, their sensing element is directly immersed in rocker arm biography
In dynamic system casing in lubricating oil, the signal of the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature sensor is defeated
Outlet connects the transducing signal input terminal of the first sensor signal processing circuit, the first sensor signal processing circuit
Output end be configured to the output end of the oil liquid health monitoring module.
The first sensor signal processing circuit and the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature pass
Sensor becomes one in structure.
The oil liquid Gernral Check-up module is preferably disposed in shearer ranging arm bottom position, is in same level with rocker arm fuel outlet
Face.
The first sensor signal processing circuit may include sequentially connected acquisition unit and the first main control chip, adopt
Collect input terminal of the input terminal of unit as the first sensor signal processing circuit.
The rocker arm vibration monitoring module includes at least second sensor signal processing circuit and three three shaft vibrations sensings
Device, three three axis vibration sensors are all disposed on rocker arm of coal mining machine shell, and respectively close to rocker arm epicyclic transmission mechanism
Primary planet carrier central axis, cutting motor axis center and cylindrical gear reducer structure primary transmission axis center, it is described
The signal output end of three axis vibration sensors connects the transducing signal input terminal of the second sensor signal processing circuit, described
The output end of second sensor signal processing circuit is configured to the output end of the rocker arm vibration monitoring module.
The rocker arm vibration monitoring module can also include three surface-mount type temperature sensors, the surface-mount type temperature sensing
Device is directly installed on rocker arm metal shell surface corresponding with three three axis vibration sensor positions, the table
The signal output end of mounted temperature sensor connects the transducing signal input terminal of the second sensor signal processing circuit.
The pre- diagnostic center module may include third main control chip, storage unit and USB interface, the storage unit
With USB interface respectively with third main control chip two-way communication link, the signal input part of the third main control chip is connected with letter
Number isolation circuit, input terminal of the input terminal of signal isolation circuit as the pre- diagnostic center module, the third master control core
The signal output end of piece connects bus, output end of total line output terminal as the pre- diagnostic center module.
The beneficial effects of the present invention are:
The present invention is capable of vibratory response of the rocker arm in operating status of real time on-line monitoring coalcutter, rocker arm transmission system profit
The status datas such as the temperature of lubricating oil liquid and oil liquid metal worn particle, dielectric, concentrated expression is shaken by way of multi-parameter fusion
The health status of arm, and fault location is carried out rapidly, help to shorten the time that debugging needs, or even by there is needle in time
The generation of failure is reduced to the intervention of property, therefore for reducing rocker arm failure rate, improving rocker arm reliability, raising coalcutter booting
Rate, promotion fully-mechanized mining working balanced production etc. have important engineering significance.
Since the different conditions information for being related to different objects of the multiple positions of rocker arm can be monitored simultaneously, and combine multi-parameter
It carries out rocker arm health status to diagnose in advance, makes monitoring result of the invention that there is comparable confidence level.
Present invention employs intrinsically safe circuit designs, can be well adapted for gas, coal-dust explosion environment；In addition, due to adopting
It is designed with integrated low power dissipation design, high-protection level, the global reliability of monitoring device is improved from system level, in turn
The reliable and accuracy of rocker arm health status monitoring is improved to a certain extent.
Detailed description of the invention
Fig. 1 is the functional block diagram of one embodiment of the present of invention；
Fig. 2 is arrangement schematic diagram of the three big modules on coalcutter included by the present invention；
Fig. 3 is the functional block diagram of one embodiment of the rocker arm vibration monitoring module；
Fig. 4 is the functional block diagram of one embodiment of the oil liquid health monitoring module；
Fig. 5 is the functional block diagram of one embodiment of the pre- diagnostic center module.
Specific embodiment
The invention discloses a kind of flitting rocker arm comprehensive state parameter on-line monitoring devices, as shown in Figure 1, including
Intrinsic safety type rocker arm vibration monitoring module, intrinsic safety type oil liquid health monitoring module and the pre- diagnostic center module of intrinsic safety type.
The rocker arm vibration monitoring module and oil liquid health monitoring module are respectively used to the vibration of on-line monitoring rocker arm and rocker arm
Transmission lubrication oil liquid situation, each pass through in wired communication mode and/or communication and the pre- diagnosis
Core module is communicated (using wireless WIFI communication mode in embodiment illustrated in fig. 1), is transmitted to the pre- diagnostic center module
Its collected rocker arm vibration and oil state monitoring data information.The pre- diagnostic center module receives these monitoring numbers
It is believed that breath, and unified normalization data processing is carried out to it, so that the number acquired under different characteristics parameter and different operating conditions
According to similar comparativity, and the pre- diagnosis of rocker arm state is carried out, the last pre- diagnostic center module is according to pre- diagnostic result
The current state information of output rocker arm, these status informations are able to reflect the health status of rocker arm outward.
The rocker arm vibration monitoring module is mainly responsible for the vibration acceleration signal of acquisition rocker arm corresponding position, the vibration of acquisition
It include the status information of the driving members such as the entire transmission chain gear of rocker arm, bearing in dynamic signal.The base of transmission chain different location
Plinth running frequency is different.Pre- diagnostic center module pre-processes collected rocker arm vibration signal, obtain its spectral characteristic,
The time and frequency domain characteristics value such as signal envelope characteristic, passes through the cross validation of different location vibration performance value, it can be determined that goes out rocker arm and passes
The state of the driving members such as the gear and bearing of dynamic chain different location.
There is preferable discriminating power to the mechanical damage having occurred and that based on the status monitoring of vibration, but for normal work
States, the variations of vibration signal associated eigenvalue such as mechanical wear and lubrication exception in work are not obvious.Therefore comprehensive to use
The monitoring result of the oil liquid health monitoring module is further judged.
The oil liquid health monitoring module has the function of oil liquid multi-parameter monitoring, the sensitivity being placed in rocker arm hydraulic oil circuit
Position, for acquiring coalcutter oil state information.As shown in figure 4, the oil liquid health monitoring module includes first sensor
Electromagnetic type abrasive grain sensor, dielectric cure sensor and the temperature sensor of signal processing circuit and immersion.The electromagnetic type mill
Grain sensor, dielectric cure sensor and temperature sensor are directly installed on shearer ranging arm, their sensing element directly soaks
Enter into rocker arm transmission system shell in lubricating oil.These three sensors be respectively used to on-line monitoring oil liquid metal worn particle,
Dielectric constant and temperature parameter.Oil liquid metal worn particle parameter is for judging rocker arm transmission system abrasion condition；Oil liquid dielectric is normal
Number is for judging oil liquid self-pollution situation, such as oil emulsifying situation；Oil liquid temperature is used for auxiliary judgment rocker arm transmission system
Abrasion and lubrication working condition.The signal output end of the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature sensor
Connect the transducing signal input terminal of the first sensor signal processing circuit, the first sensor signal processing circuit it is defeated
Outlet is configured to the output end of the oil liquid health monitoring module, communicates to connect with the pre- diagnostic center module.Described first
Sensor signal processing circuit is used for the letter acquired to the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature sensor
Number carry out pretreatment and necessary analog-to-digital conversion.
When mechanical wear occurs, the metal worn particle of different sizes corresponding from serious wear degree and cumulant can be generated
And operating temperature rise, therefore abrasive grain size and cumulant variable condition in oil liquid are acquired by the oil liquid health monitoring module, together
When reference fluid temperature change, the abrasion condition of each driving member in lubricating oil can be monitored.And by further detecting abrasive grain category
Property can determine whether out that abrasive grain main source from which position, and then facilitates the positioning at specific mechanical wear position.
The pollution condition of oil liquid itself can also have an impact entire rocking-arm driving chain, the dirt of rocker arm of coal mining machine lubricating oil
Contaminating object is mainly water and coal dust, and its dielectric parameter of oil liquid and operating temperature after pollution can change, therefore pass through institute
State oil liquid health monitoring module acquisition oil liquid dielectric and temperature parameter can effective interpretation oil liquid health status.
The first sensor signal processing circuit and the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature pass
Sensor preferably uses integrated design in structure, i.e., several parts become one, and has low-power consumption, small size, high environment
The characteristics of tolerance.
As shown in Fig. 2, the oil liquid Gernral Check-up module is preferably disposed in shearer ranging arm bottom position, at rocker arm fuel outlet
In same level.
The first sensor signal processing circuit may include sequentially connected acquisition unit and the first main control chip, adopt
Collect input terminal of the input terminal of unit as the first sensor signal processing circuit.It is sensed from the electromagnetic type abrasive grain
The pretreatments such as the acquired unit of the signal of device, dielectric cure sensor and temperature sensor is filtered, analog-to-digital conversion, then through the
The communication port of one main control chip exports.
The rocker arm vibration monitoring module needs to be arranged in the sensitive position on rocking-arm driving chain, for acquiring coalcutter
Rocker arm vibration information.
As shown in Figure 2,3, the rocker arm vibration monitoring module includes at least second sensor signal processing circuit and three
Three axis vibration sensors, three three axis vibration sensors are all disposed on rocker arm of coal mining machine shell, and specific location leans on respectively
Primary planet carrier central axis, cutting motor axis center and the cylindrical gear reducer structure primary transmission of nearly rocker arm epicyclic transmission mechanism
The center of axis, the signal output end of three axis vibration sensor connect the biography of the second sensor signal processing circuit
Feel signal input part, the output end of the second sensor signal processing circuit is configured to the defeated of the rocker arm vibration monitoring module
Outlet is communicated to connect with the pre- diagnostic center module.The second sensor signal processing circuit is used to shake to three axis
The signal of dynamic sensor acquisition carries out pretreatment and necessary analog-to-digital conversion.
The rocker arm vibration monitoring module further preferably includes three surface-mount type temperature sensors, monitors institute for on-line synchronous
State the rocker arm surface temperature of rocker arm vibration monitoring module position.Three surface-mount type temperature sensors be directly installed on
On the corresponding rocker arm metal shell surface in three three axis vibration sensor positions, surface-mount type temperature sensor and three
Axis vibration sensor corresponds, and the signal output end of the surface-mount type temperature sensor connects at the second sensor signal
Manage the transducing signal input terminal of circuit.The second sensor signal processing circuit also acquires the surface-mount type temperature sensor
Signal carry out pretreatment and necessary analog-to-digital conversion.Due to the use of the surface-mount type temperature sensor, shearer ranging arm surface
Temperature monitoring data information be transferred to the pre- diagnostic center module also by wired communication mode and/or communication
Unified more transducing signal normalization datas processing is participated in, one of current state information as rocker arm is by the pre- diagnostic center
Module exports outward.Temperature monitoring can be used as reference signal, corresponding when abnormal cooperation occurs in transmission chain and when mechanical damage
The temperature of position will appear abnormal temperature rise and operating temperature state, and the conduction and monitoring of temperature are more reliable, therefore
Setting temperature sensor can provide auxiliary judgment foundation for monitorings such as gear-bearings.
The second sensor signal processing circuit includes sequentially connected pretreatment and adc circuit and the second master control core
Input terminal of the input terminal of piece, pretreatment and adc circuit as the second sensor signal processing circuit.From three axis
The signal of vibrating sensor and surface-mount type temperature sensor is preprocessed and adc circuit connect be filtered, the pre- place such as analog-to-digital conversion
Reason, then the communication port output through the second main control chip.
As shown in figure 5, the pre- diagnostic center module is preferably provided with storage unit and USB interface, the storage unit and
For USB interface respectively with third main control chip two-way communication link, the signal input part of the third main control chip is connected with signal
Isolation circuit, input terminal of the input terminal of signal isolation circuit as the pre- diagnostic center module, the third main control chip
Signal output end connect host computer through bus.The pre- diagnostic center module has communication, storage and calculation function, communicates function
It, which can be essentially consisted in, has the function of wireless aps, can by the data of the rocker arm vibration monitoring module and oil liquid Gernral Check-up module with
Coalcutter electrical control network carries out cable network communication.The storage unit and USB interface be responsible for collected data and
Pre- diagnostic result is stored.The third main control chip is mainly responsible for according to the rocker arm vibration monitoring module and oil liquid health
The data that monitoring modular transmits carry out processing and pre- diagnosis, and extremely by the result data diagnosed in advance i.e. rocker arm health data transmitting
Coal mining machine control system.The pre- diagnosis is provided by the comprehensive rocker arm vibration monitoring module and oil liquid health monitoring module
The quick and easy judgement that multi-sensor data carries out rocker arm health status, mechanical wear situation and oil liquid including different parts
Health condition.
The output end of the pre- diagnostic center module is with the network line interface of isolation, which is the pre- diagnostic center
The data output interface of module passes through wired mode and coal mining machine control system by pre- diagnostic center module described in the interface
Between communicated, the pre- diagnostic center module is passed the information in a wired manner to master system, i.e. coal mining electrical-mechanical
Control network.
Since the rocker arm vibration monitoring module, oil liquid health monitoring module and pre- diagnostic center module are all intrinsic safety types
, all there is essential safety characteristic, therefore can be arranged in outside coalcutter anti-explosion box body, and directly apply to underground coal mine danger
In dangerous environment.
The IP degree of protection of the rocker arm vibration monitoring module, oil liquid health monitoring module and pre- diagnostic center module is not
Lower than IP54, therefore there is good dustproof and waterproof ability, is used directly for coal dust and splashing environment.
The pre- diagnostic center module is usually independently arranged in the front of the outside of coal mining machine electric control box, operation panel, needs
It can use lower hand-held when wanting.
The present invention can be diagnosed in advance to rocker arm state and abort situation positioning, therefore the work for helping to improve rocker arm can
By the Homes Using TV of property and coalcutter.
Claims (10)
1. a kind of flitting rocker arm comprehensive state parameter on-line monitoring device, it is characterised in that: shake including intrinsic safety type rocker arm
Dynamic monitoring modular, intrinsic safety type oil liquid health monitoring module and the pre- diagnostic center module of intrinsic safety type, the rocker arm vibration monitoring module
With oil liquid health monitoring module each by wired communication mode and/or communication and the pre- diagnostic center module into
Row communication transmits monitoring data information to the pre- diagnostic center module, and the pre- diagnostic center module is to these monitoring data
Data processing is normalized in information, and exports the current state information of rocker arm, and the oil liquid health monitoring module includes first
Electromagnetic type abrasive grain sensor, dielectric cure sensor and the temperature sensor of sensor signal processing circuit and immersion, electromagnetic type
The sensing element of abrasive grain sensor, dielectric cure sensor and temperature sensor, which is directly immersed in rocker arm transmission system shell, to be lubricated
In oil liquid, the electromagnetic type abrasive grain sensor, dielectric cure sensor connect described first with the signal output end of temperature sensor
The output end of the transducing signal input terminal of sensor signal processing circuit, the first sensor signal processing circuit is configured to institute
State the output end of oil liquid health monitoring module.
2. flitting rocker arm comprehensive state parameter on-line monitoring device as described in claim 1, it is characterised in that: described
The first sensor signal processing circuit and the electromagnetic type abrasive grain sensor, dielectric cure sensor and temperature sensor are in structure
Become one.
3. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 2, it is characterised in that: described
Oil liquid Gernral Check-up module is placed in shearer ranging arm bottom position, is in same level with rocker arm fuel outlet.
4. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 3, it is characterised in that: described
The first sensor signal processing circuit includes sequentially connected acquisition unit and the first main control chip, and the input terminal of acquisition unit is made
For the input terminal of the first sensor signal processing circuit.
5. the flitting rocker arm comprehensive state parameter on-line monitoring device as described in claim 1,2,3 or 4, feature exist
In: the rocker arm vibration monitoring module includes at least second sensor signal processing circuit and three three axis vibration sensors, institute
It states three three axis vibration sensors to be all disposed on rocker arm of coal mining machine shell, specific location is respectively close to rocker arm epicyclic transmission mechanism
Primary planet carrier central axis, cutting motor axis center and cylindrical gear reducer structure primary transmission axis center, it is described
The signal output end of three axis vibration sensors connects the transducing signal input terminal of the second sensor signal processing circuit, described
The output end of second sensor signal processing circuit is configured to the output end of the rocker arm vibration monitoring module.
6. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 5, it is characterised in that: described
Rocker arm vibration monitoring module further includes three surface-mount type temperature sensors, and the surface-mount type temperature sensor is directly installed on and institute
It states on the corresponding rocker arm metal shell surface in three three axis vibration sensor positions, the surface-mount type temperature sensor
Signal output end connects the transducing signal input terminal of the second sensor signal processing circuit.
7. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 5, it is characterised in that: described
Pre- diagnostic center module includes third main control chip, storage unit and USB interface, the storage unit and USB interface respectively with
The signal input part of third main control chip two-way communication link, the third main control chip is connected with signal isolation circuit, signal
The signal output end of input terminal of the input terminal of isolation circuit as the pre- diagnostic center module, the third main control chip connects
Connect bus, output end of total line output terminal as the pre- diagnostic center module.
8. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 5, it is characterised in that: described
Rocker arm vibration monitoring module, oil liquid health monitoring module and pre- diagnostic center module are placed in outside coalcutter anti-explosion box body.
9. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 5, it is characterised in that: described
The IP degree of protection of rocker arm vibration monitoring module, oil liquid health monitoring module and pre- diagnostic center module is not less than IP54.
10. flitting rocker arm comprehensive state parameter on-line monitoring device as claimed in claim 5, it is characterised in that: institute
State the front that pre- diagnostic center module is removably attached to the outside of coal mining machine electric control box, operation panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333632.4A CN109163871A (en) | 2018-11-09 | 2018-11-09 | Flitting rocker arm comprehensive state parameter on-line monitoring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811333632.4A CN109163871A (en) | 2018-11-09 | 2018-11-09 | Flitting rocker arm comprehensive state parameter on-line monitoring device |
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| CN109163871A true CN109163871A (en) | 2019-01-08 |
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| CN201811333632.4A Pending CN109163871A (en) | 2018-11-09 | 2018-11-09 | Flitting rocker arm comprehensive state parameter on-line monitoring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111256760A (en) * | 2020-03-03 | 2020-06-09 | 广州机械科学研究院有限公司 | Comprehensive integrated wear diagnosis and health operation and maintenance system |
| CN113155443A (en) * | 2021-04-22 | 2021-07-23 | 山东科技大学 | Lubricating oil state monitoring and fault diagnosis system and method for reducer of coal mining machine |
| CN115144751A (en) * | 2022-09-05 | 2022-10-04 | 西北工业大学 | Traction motor fault diagnosis device and method |
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| CN115144751A (en) * | 2022-09-05 | 2022-10-04 | 西北工业大学 | Traction motor fault diagnosis device and method |
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Inventor after: Zhuang Deyu Inventor after: Qiu Jinbo Inventor after: Zhang Sihan Inventor after: Lv Yonghan Inventor after: Guo Dai Inventor before: Zhuang Deyu Inventor before: Qiu Jinbo Inventor before: Zhang Sihan Inventor before: Lv Yonghan Inventor before: Guo Dai |
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Application publication date: 20190108 |