CN106140405B - A kind of grinding chemical mechanical system of multisensor monitoring - Google Patents
A kind of grinding chemical mechanical system of multisensor monitoring Download PDFInfo
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- CN106140405B CN106140405B CN201610538760.7A CN201610538760A CN106140405B CN 106140405 B CN106140405 B CN 106140405B CN 201610538760 A CN201610538760 A CN 201610538760A CN 106140405 B CN106140405 B CN 106140405B
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/10—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls with one or a few disintegrating members arranged in the container
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1805—Monitoring devices for tumbling mills
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/1815—Cooling or heating devices
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C17/00—Disintegrating by tumbling mills, i.e. mills having a container charged with the material to be disintegrated with or without special disintegrating members such as pebbles or balls
- B02C17/18—Details
- B02C17/183—Feeding or discharging devices
- B02C17/186—Adding fluid, other than for crushing by fluid energy
- B02C17/1875—Adding fluid, other than for crushing by fluid energy passing gas through crushing zone
- B02C17/189—Adding fluid, other than for crushing by fluid energy passing gas through crushing zone with return of oversize material to crushing zone
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C25/00—Control arrangements specially adapted for crushing or disintegrating
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
A kind of grinding chemical mechanical system of multisensor monitoring, it is characterised in that：Including means of abrasion and control system two parts, means of abrasion includes raw material bucket, batcher, collector, feeding belt, grinder, bead separator, tailing separator, pulverized-coal collector, powder bucket, wind turbine, valve and pipeline, there is grinder feed inlet, discharge port, cylinder, base bearing, auxiliary bearing, lodicule, bead, main shaft, cylinder to swing belt wheel and pipe shaft gear, main shaft rotates under the drive of spindle motor, and cylinder swings at an angle carry out reciprocating rotation of the belt wheel in the drive periodical of stepper motor.
Description
Technical field
The invention belongs to grinding machinery, more particularly to a kind of grinding chemical mechanical system of multisensor monitoring.
Background technology
At present, the technical force of production of the grinding machinery of chemicals is weak, production line automation degree is low, manual operation
The dispersion of more, process, working environment difference fall behind in production way, production process there are the problem of following points.
Lapping efficiency is low, and abrasive product is single, can not adjust machinery in due course as needed；Automatically control degree
It is low, operating personnel's manual operations inefficiency；In chemicals process of lapping, chemicals can generate heat, need to shut down cooling,
It cannot cool down in real time；In production process certain parameters adjusting and monitoring rely primarily on experienced operator monitoring so that
Production information and process data cannot be accurate, it is impossible to adjustment in time.
Invention content
The technical problem to be solved in the present invention is to provide a kind of grinding chemical mechanical systems of multisensor monitoring, can
Accelerate the efficiency of grinding production, the finished product powder of variable grain size is provided, realize the automation of grinding production.
To achieve these goals, the technical scheme is that：A kind of grinding chemical machinery system of multisensor monitoring
System, including means of abrasion and control system two parts, means of abrasion includes raw material bucket, batcher, collector, feeding belt, grinding
Machine, bead separator, tailing separator, pulverized-coal collector, powder bucket, wind turbine, valve and pipeline, raw material are entered by batcher
Collector enters grinder with other powder set by feeding belt, and grinder forms preliminary working powder after material is ground,
Bead separator is entered by pipeline, bead is detached and is retracted in grinder, the preliminary working powder after separation by pipeline into
Enter tailing separator, oversized preliminary working powder is detached and passes through pipeline enter collector, by tailing separator
Preliminary working powder forms just separation powder, and being directly entered powder bucket by pipeline forms final powder or entered by pipeline
Pulverized-coal collector further will just detach Powder screen form slection into final powder, and off size defined powder is returned set
Device is provided with pneumatic pump between pulverized-coal collector and collector, quickly pass through pipeline in order to which powder is smooth；
Wherein, grinder has feed inlet, discharge port, cylinder, base bearing, auxiliary bearing, lodicule, bead, main shaft, cylinder pendulum
Movable belt pulley and pipe shaft gear, raw material enter inner barrel by the feed inlet of cylinder, auxiliary bearing, cylinder are arranged outside feed inlet
Interior lodicule is fixedly connected with main shaft, and main shaft is hollow tubular structure, and multiple through-holes are formed on surface, and shape is stretched out in main shaft one end
Into discharge port, base bearing is set on main shaft, and pipe shaft gear is set on main shaft, pipe shaft gear and the sliding tooth on spindle motor
Wheel engagement, main shaft rotate under the drive of spindle motor, and cylinder swings belt wheel and is fixedly connected with cylinder, and cylinder swings belt wheel and passes through
Belt connect with external stepper motor, cylinder swing belt wheel stepper motor drive periodical at an angle into
Row reciprocating rotation；
Control system includes sensor, main controller, executive device, display device and communication device, and sensor will measure
Analog signal transmission is obtained to sampling A/D chip, sampling A/D chip samples the analog signal of sensor, then passes through A/D converter
It is converted to digital signal and passes to main controller, control executive device carries out corresponding after main controller is handled obtained signal
Action, and corresponding parameter is shown on the desplay apparatus, communication device is connect with main controller, and communication device is GPRS transmitting-receiving dresses
It puts, and then realizes unmanned remote monitoring；
Sensor includes tachogenerator, speed probe, weight sensor, temperature sensor, pressure sensor, vibration
Sensor, audio sensor, load estimation module, tachogenerator are mounted on feeding belt to measure the speed of feeding belt, weight
Quantity sensor is mounted on to measure the powder weight after raw material and processing on raw material bucket and powder bucket, and temperature sensor is mounted on and grinds
To measure water temperature at the wastewater outlet of grinding machine, pressure sensor is mounted on the discharge outlet of grinder to measure discharge port pressure,
Vibrating sensor and audio sensor are mounted on the pedestal of grinder to measure the mechanical oscillation signal of grinder and noise
Signal, load estimation module are arranged between spindle motor and power supply the load with the electric current of measurement motor and voltage, and rotating speed passes
Sensor is arranged on main shaft to measure the rotating speed of main shaft.
Beneficial effects of the present invention：
1. effective processing of pair powder processed, and different powders can be processed according to demand；
2. the processing dynamics to raw material is increased, so as to improve crush efficiency；
3. realize the control to barrel temperature；
4. realize the grinding that becomes more meticulous of particle；
5. automation control, reduce the inaccurate of waste in the efficiency that the change tape repeatedly manually set comes and precision
Really；
6. monitoring material position situation in real time, the situation for preventing material position too high or too low occurs.
Description of the drawings
Fig. 1 is the means of abrasion structure diagram of the present invention；
Fig. 2 is the grinding machine structure schematic diagram of the present invention；
Fig. 3 a are the dispersion impeller structure size schematic diagram one of the present invention；
Fig. 3 b are the dispersion impeller structure size schematic diagram two of the present invention
Fig. 4 is the driving schematic diagram of the spindle motor of the present invention；
The schematic diagram of the fuzzy controller of Fig. 5 present invention；
Specific embodiment
The present invention is further illustrated with embodiment below in conjunction with the accompanying drawings.
The embodiment of the present invention is with reference to shown in figure 1-5.
A kind of grinding chemical mechanical system of multisensor monitoring, including means of abrasion and control system two parts, grinds
Mill part includes raw material bucket, batcher, collector, feeding belt, grinder, bead separator, tailing separator, fine powder separation
Device, powder bucket, wind turbine, valve and pipeline, as shown in the figure, raw material enters collector by batcher, with other powder set
Entering grinder by feeding belt, grinder forms preliminary working powder after material is ground, enters bead separator by pipeline,
Bead is detached and is retracted in grinder, the preliminary working powder after separation enters tailing separator by pipeline, will be oversized
Preliminary working powder detach and pass through pipeline and enter collector, form just separation powder by the preliminary working powder of tailing separator
Material is directly entered powder bucket by pipeline and forms final powder or enter pulverized-coal collector by pipeline, further will just divide
From Powder screen form slection into final powder, and will it is off size as defined in powder return to collector, pulverized-coal collector and collector it
Between be provided with pneumatic pump, quickly pass through pipeline in order to which powder is smooth.
It is set by the multi-cycle of above-mentioned multiple pipelines, realizes effective processing to powder processed, and can be according to demand
Process different powders.
Wherein, grinder has feed inlet, discharge port, cylinder, base bearing, auxiliary bearing, lodicule, bead, main shaft, cylinder pendulum
Movable belt pulley and pipe shaft gear, raw material enter inner barrel by the feed inlet of cylinder, auxiliary bearing, cylinder are arranged outside feed inlet
Interior lodicule is fixedly connected with main shaft, and main shaft is hollow tubular structure, and multiple through-holes are formed on surface, and shape is stretched out in main shaft one end
Into discharge port, base bearing is set on main shaft, and pipe shaft gear is set on main shaft, pipe shaft gear and the sliding tooth on spindle motor
Wheel engagement, main shaft rotate under the drive of spindle motor, and cylinder swings belt wheel and is fixedly connected with cylinder, and cylinder swings belt wheel and passes through
Belt connect with external stepper motor, cylinder swing belt wheel stepper motor drive periodical at an angle into
Row reciprocating rotation.
In above structure, main shaft and cylinder rotate simultaneously, the technical side of the rotation of relatively previous single main shaft or cylinder
Case increases the processing dynamics to raw material, so as to improve crush efficiency.
Control system includes sensor, main controller, executive device, display device and communication device, and sensor will measure
Analog signal transmission is obtained to sampling A/D chip, sampling A/D chip samples the analog signal of sensor, then passes through A/D converter
It is converted to digital signal and passes to main controller, control executive device carries out corresponding after main controller is handled obtained signal
Action, and corresponding parameter is shown on the desplay apparatus, communication device is connect with main controller, and communication device is GPRS transmitting-receiving dresses
It puts, and then realizes unmanned remote monitoring.
Further, the granularity of raw material is 450 microns or more, and the granularity of the powder by tailing separator separation is 50
Micron is hereinafter, the granularity of the powder by pulverized-coal collector separation is less than 1 micron.
Further, pulverized-coal collector separation parameter is adjusted.
Further, bead is artificial bead or steel ball.
The milling apparatus made to be suitable for paint by the setting of above-mentioned separator, grind pigment, dyestuff, drug or glue and hang
The Grinding manufacturing of the chemical materials of a variety of variable grain degree requirements such as agent.
Further, pneumatic pump is Pneumatic double diaphragm pump, and flow is adjustable, using compressed air as pressure, work
Pressure limit is 0.5-0.7Mpa.
Further, cylinder has double-layered bucket wall, and double-layered bucket wall forms accommodating cavity, accommodates cooling water, the outer layer of cylinder
Setting cold water inlet, wastewater outlet on bucket wall.
By setting the cylinder of double-layered bucket wall and entering water and water outlet accordingly, the control to barrel temperature is realized.
Further, main shaft is in the alternating forward and reverse rotation of the drive periodical of spindle motor, and forward and reverse rotation
Alternate cycle and cylinder swing belt wheel reciprocation period it is identical.
Further, main shaft is opposite with the direction of motion of cylinder swing belt wheel.
By the setting of the above-mentioned direction of motion, crush efficiency is further improved.
Further, the lodicule on the main shaft in grinder body is multiple dispersion impellers, during main axis, the pearl in body
Body carries out dispersion grinding under the drive of dispersion impeller to the slurry in press-in cylinder, and dispersion impeller shares 3, has on each dispersion impeller
5, using the central shaft through-hole evenly distributed as the center of circle, are disperseed disk diameter 100cm, through-hole diameter 20cm, the thickness of dispersion impeller is
9cm, major axis diameter 25cm close on the distance between dispersion impeller for 39cm.
By the setting of above-mentioned multiple 5 holes dispersion impeller, realize under the conditions of the spindle motor slow-speed of revolution to the fine of particle
Change grinding.
Further, bead is divided into big bead and small bead, and big bead diameter is generally 60mm, and small bead is a diameter of
20mm。
By the setting of size bead, the gap between bead can be effectively filled, be conducive to fine powder grinds life
Into.
Wherein sensor include tachogenerator, speed probe, weight sensor, temperature sensor, pressure sensor,
Vibrating sensor, audio sensor, load estimation module, tachogenerator are mounted on feeding belt to measure the speed of feeding belt
Degree, weight sensor are mounted on raw material bucket and powder bucket to measure the powder weight after raw material and processing, temperature sensor peace
To measure water temperature at the wastewater outlet of grinder, pressure sensor is mounted on the discharge outlet of grinder to measure discharge port
Pressure, vibrating sensor and audio sensor be mounted on grinder pedestal on measure the mechanical oscillation signal of grinder and
Noise signal, load estimation module are arranged between spindle motor and power supply the load with the electric current of measurement motor and voltage, turn
Fast sensor is arranged on main shaft to measure the rotating speed of main shaft；
Further, the material position in cylinder is judged by mechanical oscillation signal and noise signal, is as follows：
Step 1, mechanical oscillation signal and noise signal are filtered, remove garbage signal, and obtain mechanical oscillation frequency
Rate function fzWith noise frequency function fc；
Step 2, sound level is calculated,
In formula, L is sound level intensities, and t is the time, and e is the truth of a matter of natural logrithm function, and lg is logarithmic function, and F () is cylinder
Impact force function between interior bead and material, He() be tube structure receptance function, a be sound level weighting coefficient, σradCylinder knot
The sound radiation coefficient of structure, ηsFor the internal damping coefficient of cylinder, d is cylinder average thickness, and Re expressions take real；
Step 3, the curve of sound level intensities L is drawn, and extracts envelope signal, form envelope curve and envelope signal is carried out
Lower sample process carries out data compression；
Step 4, low-frequency reconfiguration is carried out to compressed data, obtains low-frequency reconfiguration signal；
Step 5, above-mentioned low-frequency reconfiguration signal is obtained by trained three layers of BP neural network with measurement in advance
Be respectively at 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% material position low-frequency reconfiguration signal carry out
It compares, from the Realtime Level information of output grinder.
Material position is too low will to cause ball mill to be operated in scarce material state, and mass output rate is low, and the abrasion of bead and cylinder is more serious,
Material position is excessively high, and to will also result in mass output rate low or even the problem of there may come a time when to cause putty.It can be monitored in real time by the above method
Material position situation in cylinder, and then prevent material position too low or excessively high happen.
Tachogenerator, weight sensor, temperature sensor, pressure sensor, vibrating sensor, audio sensor pass through
Sampling A/D chip inputs a signal into main controller, and load estimation module inputs a signal into main controller by bandpass filter；
Executive device includes pulley electric motor, stepper motor, spindle motor, water supply pump, pneumatic pump, clutch, gear
The belt pulley connection of case, pulley electric motor and feeding belt, main controller are connect with pulley electric motor by driving device and provided it
Tach signal is to adjust the feeding speed of feeding belt, and main controller is connect by impulse generator with stepper motor, impulse generator
The pulse signal in period is provided to stepper motor and then controls its service cycle and rotation angle, and main controller passes through drive spindle
Motor connects and provides it drive signal to adjust the supply of electric power of spindle motor and then adjust the load capacity of spindle motor,
Main controller connect the supply pressure to control cold water with control valve on water supply pump, and then realizes effective cooling to cylinder, master control
Device connect the flow to control powder with pneumatic pump.
Spindle motor is connect by clutch with gear-box, has gear on the output shaft of gear-box thus on grinder
Pipe shaft gear is intermeshed, and main controller is connect with clutch so as to which spindle motor be made to disconnect with gear-box in load excessive, main
Control device is connect with gear-box is adjusted rotating speed and steering.
Further, pulse signal is generated by sinusoidal signal modulation, and there are two positive and negative for tool in each period
The identical pulse of pulsewidth, main controller controls stepper motor rotation angle by adjusting the size of pulse width, passes through tune
It saves pulse signal cycle and adjusts stepper motor service cycle, the half of pulse signal cycle is used as to gear-box steering by main controller
The period of adjusting.
Display device includes liquid crystal display and warning indicator, and display device liquid crystal display is connect with main controller, shows
Show the data of each sensor acquisition and the state of each executing agency, warning indicator is connect with main controller, for going out
Alarm is sent out to remind operating personnel during existing failure；
Further, for pipeline putty, feeding belt stalling occur for failure, and clutch detaches, wastewater outlet water temperature
Excessively high, mechanical oscillation signal and noise signal are abnormal；
Main controller has fuzzy control device, and fuzzy control device includes difference engine, differentiator, defuzzification interface, output
Modular converter, inference machine, knowledge base are measured, load estimation module filters the measurement load voltage of the spindle motor measured by band logical
Wave device is supplied to difference engine, and the setting load voltage that operating personnel input is subtracted each other to obtain error by difference engine with measuring load voltage
Value E, error value E obtain error rate dE/dt by differentiator, and error value E and error rate dE/dt are supplied to blurring
Interface carries out blurring assignment to error value E and error rate dE/dt, respectively obtains blurring error amount ME and blurring
Error change value MEC, blurring error amount ME and blurring error change value MEC are supplied to inference machine, and inference machine is according to knowledge
Input and output degree of membership vector value and reasoning from logic rule in library is to blurring error amount ME and blurring error change value
MEC carries out fuzzy reasoning and obtains fuzzy control quantity MU, and fuzzy control quantity MU is converted to practical controlled quentity controlled variable by output quantity modular converter
U controls power supply to provide voltage to spindle motor according to practical controlled quentity controlled variable U.
Wherein, the process for being blurred assignment is specially：According to selection parameter PL, PB of the linguistic variable of operating personnel, PM,
PS, ZO, NS, NM, NB, BL represent respectively positive super large, honest, center, it is just small, zero, it is negative it is small, negative in, negative big, negative super large, it is corresponding
Fuzzy set-n ,-n+1 ..., 0 ..., n-1, n }, n=4；
Determine quantizing factor, ke=n/e, wherein, keFor error amount quantizing factor, e is the worst error value measured, kec=
N/ec, kecFor error rate quantizing factor, ec is the worst error change rate measured,
If m≤keE≤m+1, m ＜ n, then it is the k by rounding up to be blurred error amount MEeE；
If keE ＜-n are then blurred error amount ME as-n；
If keE ＞ n are then blurred error amount ME as n；
If m≤kecE≤m+1, m ＜ n, then it is the k by rounding up to be blurred error change value MECecE；
If kecE ＜-n are then blurred error change value MEC as-n；
If kecE ＞ n are then blurred error change value MEC as n.
Further, knowledge base includes database and rule base,
In database storage input, output variable fuzzy membership vector value, this vector value be input, output quantity pass through
The set of corresponding value after the discretizations such as corresponding domain if corresponding domain is continuous, can be used as membership function, for
The fuzzy variable of input, membership function are stored in database, and data are provided to inference machine in fuzzy reasoning relationship.
Fuzzy rule is stored in rule base, fuzzy rule is the experience of operating personnel's long-term accumulation and combines expertise
On the basis of formed, expressed by the vocabulary of relevant logical relation, such as if-then, else, end, and, or etc..
It can effectively realize the rapid setting of motor load automatically by fuzzy control, reduce repairing repeatedly of manually setting
Change the inaccuracy of waste and precision in the efficiency brought.
Embodiment described above only expresses one embodiment of the present invention, but can not therefore be interpreted as to this
The limitation of invention scope.It should be pointed out that for those of ordinary skill in the art, in the premise for not departing from present inventive concept
Under, various modifications and improvements can be made, these belong to protection scope of the present invention.
Claims (10)
1. a kind of grinding chemical mechanical system of multisensor monitoring, it is characterised in that：Including means of abrasion and control system two
Part, means of abrasion include raw material bucket, batcher, collector, feeding belt, grinder, bead separator, tailing separator, thin
Powder separator, powder bucket, wind turbine, valve and pipeline, raw material enter collector by batcher, pass through with other powder set
Feeding belt enters grinder, and grinder forms preliminary working powder after material is ground, enters bead separator by pipeline, by pearl
Body is detached and is retracted in grinder, and the preliminary working powder after separation enters tailing separator by pipeline, at the beginning of oversized
Processing powder, which detaches and passes through pipeline, enters collector, forms just separation powder by the preliminary working powder of tailing separator, leads to
It crosses pipeline and is directly entered powder bucket and form final powder or pulverized-coal collector is entered by pipeline, further will just detach powder
Material screen form slection returns to collector into final powder, and by off size defined powder, is set between pulverized-coal collector and collector
Pneumatic pump is equipped with, quickly passes through pipeline in order to which powder is smooth；
Wherein, there is grinder feed inlet, discharge port, cylinder, base bearing, auxiliary bearing, lodicule, bead, main shaft, cylinder to swing band
Wheel and pipe shaft gear, raw material enter inner barrel by the feed inlet of cylinder, are arranged auxiliary bearing outside feed inlet, in cylinder
Lodicule is fixedly connected with main shaft, and main shaft is hollow tubular structure, and multiple through-holes are formed on surface, and main shaft one end is stretched out to be formed out
Material mouth, base bearing are set on main shaft, and pipe shaft gear is set on main shaft, and pipe shaft gear is nibbled with the drive gear on spindle motor
It closes, main shaft rotates under the drive of spindle motor, and cylinder swings belt wheel and is fixedly connected with cylinder, and cylinder swings belt wheel and passes through belt
It is connect with external stepper motor, it is past in the carry out at an angle of the drive periodical of stepper motor that cylinder swings belt wheel
Multiple rotation；
Control system includes sensor, main controller, executive device, display device and communication device, and sensor obtains measurement
For analog signal transmission to sampling A/D chip, sampling A/D chip samples the analog signal of sensor, then is converted by A/D converter
Main controller is passed to for digital signal, control executive device is moved accordingly after main controller is handled obtained signal
Make, and corresponding parameter is shown on the desplay apparatus, communication device is connect with main controller, and communication device is GPRS transmitting-receiving dresses
It puts, and then realizes unmanned remote monitoring；
Sensor includes tachogenerator, speed probe, weight sensor, temperature sensor, pressure sensor, vibrating sensing
Device, audio sensor, load estimation module, tachogenerator are mounted on feeding belt to measure the speed of feeding belt, and weight passes
Sensor is mounted on to measure the powder weight after raw material and processing on raw material bucket and powder bucket, and temperature sensor is mounted on grinder
Wastewater outlet to measure water temperature, pressure sensor is mounted on the discharge outlet of grinder to measure discharge port pressure, vibrates
Sensor and audio sensor are mounted on the pedestal of grinder to measure the mechanical oscillation signal of grinder and noise signal,
Load estimation module is arranged between spindle motor and power supply the load with the electric current of measurement motor and voltage, and speed probe is set
It puts on main shaft to measure the rotating speed of main shaft.
2. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 1, it is characterised in that：Test the speed biography
Sensor, weight sensor, temperature sensor, pressure sensor, vibrating sensor, audio sensor are by sampling A/D chip by signal
Main controller is inputted, load estimation module inputs a signal into main controller by bandpass filter.
3. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 2, it is characterised in that：Pass through machine
Tool vibration signal and noise signal judge the material position in cylinder, are as follows：
Step 1, mechanical oscillation signal and noise signal are filtered, remove garbage signal, and obtain mechanical oscillation frequencies letter
Number fzWith noise frequency function fc；
Step 2, sound level is calculated,
In formula, L is sound level intensities, and t is the time, and e is the truth of a matter of natural logrithm function, and lg is logarithmic function, and F () is cylinder inner integument
Impact force function between body and material, He() be tube structure receptance function, a be sound level weighting coefficient, σradTube structure
Sound radiation coefficient, ηsFor the internal damping coefficient of cylinder, d is cylinder average thickness, and Re expressions take real；
Step 3, the curve of sound level intensities L is drawn, and extracts envelope signal, form envelope curve and lower pumping is carried out to envelope signal
Sample processing, carries out data compression；
Step 4, low-frequency reconfiguration is carried out to compressed data, obtains low-frequency reconfiguration signal；
Step 5, by above-mentioned low-frequency reconfiguration signal by trained three layers of BP neural network, point obtained with measurement in advance
Other places are compared in the low-frequency reconfiguration signal of 10%, 20%, 30%, 40%, 50%, 60%, 70%, 80%, 90% material position,
Export the Realtime Level information of grinder.
4. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 2, it is characterised in that：Main shaft exists
The alternating forward and reverse rotation of the drive periodical of spindle motor, and the alternate cycle of forward and reverse rotation swings belt wheel with cylinder
Reciprocation period is identical, and the direction of motion that main shaft swings belt wheel with cylinder is opposite.
5. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 2, it is characterised in that：Grinder
Lodicule on internal main shaft is multiple dispersion impellers, and during main axis, the bead in grinder body is right under the drive of dispersion impeller
Slurry in press-in cylinder carries out dispersion grinding, and dispersion impeller shares 3, have on each dispersion impeller 5 it is equal by the center of circle of central shaft
The through-hole of even arrangement, disperses disk diameter 100cm, through-hole diameter 20cm, and the thickness of dispersion impeller is 9cm, major axis diameter 25cm,
The distance between dispersion impeller is closed on for 39cm；Bead is divided into big bead and small bead, the big a diameter of 60mm of bead, small bead diameter
For 20mm.
6. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 2, it is characterised in that：Perform dress
Put including pulley electric motor, stepper motor, spindle motor, water supply pump, pneumatic pump, clutch, gear-box, pulley electric motor with
The belt pulley connection of feeding belt, main controller is connect by driving device with pulley electric motor to be provided it tach signal and is sent with adjusting
The feeding speed of material strip, main controller are connect by impulse generator with stepper motor, and impulse generator provides week to stepper motor
The pulse signal of phase and then control its service cycle and rotation angle, main controller connect by driver with spindle motor and to its
Drive signal is provided to adjust the supply of electric power of spindle motor and then adjust the load capacity of spindle motor, main controller and water supply pump
Upper control valve connection realizes effective cooling to cylinder to control the supply pressure of cold water, and main controller connects with pneumatic pump
Connect the flow to control powder.
7. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 6, it is characterised in that：Main shaft electricity
Machine is connect by clutch with gear-box, has gear on the output shaft of gear-box so as to mutually be nibbled with the pipe shaft gear on grinder
It closes, main controller is connect with clutch so as to which spindle motor be made to disconnect with gear-box in load excessive, and main controller connects with gear-box
It connects and rotating speed and steering is adjusted.
8. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 7, it is characterised in that：Pulse is believed
Number generated by sinusoidal signal modulation, and there are two the identical pulses of positive and negative pulsewidth, main controller to lead to for tool in each period
It overregulates the size of pulse width and then controls stepper motor rotation angle, stepper motor is adjusted by adjusting pulse signal cycle
Service cycle, main controller turn to the period adjusted using the half of pulse signal cycle as to gear-box.
9. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 1, it is characterised in that：Display dress
It puts including liquid crystal display and warning indicator, display device liquid crystal display is connect with main controller, shows that each sensor is adopted
The data of collection and the state of each executing agency, warning indicator are connect with main controller, for sending out police when breaking down
It responds with and reminds operating personnel, for pipeline putty, feeding belt stalling occur for failure, and clutch detaches, wastewater outlet water temperature mistake
Height, mechanical oscillation signal and noise signal are abnormal.
10. a kind of grinding chemical mechanical system of multisensor monitoring according to claim 9, it is characterised in that：Master control
Utensil has fuzzy control device, and fuzzy control device includes difference engine, differentiator, defuzzification interface, output quantity modular converter, pushes away
The measurement load voltage of the spindle motor measured is supplied to difference by reason machine, knowledge base, load estimation module by bandpass filter
Divide device, the setting load voltage that operating personnel input is subtracted each other to obtain error value E, error value E by difference engine with measuring load voltage
Error rate dE/dt is obtained by differentiator, error value E and error rate dE/dt are supplied to defuzzification interface, to error
Value E and error rate dE/dt carry out blurring assignment, respectively obtain blurring error amount ME and blurring error change value
MEC, blurring error amount ME and blurring error change value MEC are supplied to inference machine, input of the inference machine in knowledge base
Output degree of membership vector value and reasoning from logic rule obscure blurring error amount ME and blurring error change value MEC
Reasoning obtains fuzzy control quantity MU, and fuzzy control quantity MU is converted to practical controlled quentity controlled variable U by output quantity modular converter, according to practical control
Amount U processed controls power supply to provide voltage to spindle motor；
Wherein, the process for being blurred assignment is specially：According to selection parameter PL, PB of the linguistic variable of operating personnel, PM, PS,
ZO, NS, NM, NB, BL represent respectively positive super large, honest, center, it is just small, zero, it is negative it is small, negative in, negative big, negative super large, corresponding mould
Paste collection-n ,-n+1 ..., 0 ..., n-1, n }, n=4,
Determine quantizing factor, ke=n/e, wherein, keFor error amount quantizing factor, e is the worst error value measured, kec=n/ec,
kecFor error rate quantizing factor, ec is the worst error change rate measured,
If m≤keE≤m+1, m ＜ n, then it is the k by rounding up to be blurred error amount MEeE；
If keE ＜-n are then blurred error amount ME as-n；
If keE ＞ n are then blurred error amount ME as n；
If m≤kecE≤m+1, m ＜ n, then it is the k by rounding up to be blurred error change value MECecE；
If kecE ＜-n are then blurred error change value MEC as-n；
If kecE ＞ n are then blurred error change value MEC as n；
Knowledge base includes database and rule base,
In database storage input, output variable fuzzy membership vector value, this vector value be input, output quantity through correspondence
The set of corresponding value after the discretizations such as domain, if corresponding domain is continuous, as membership function, for input
Fuzzy variable, membership function are stored in database, and data are provided to inference machine in fuzzy reasoning relationship.
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| CN201500574U (en) * | 2009-09-02 | 2010-06-09 | 高金祯 | Automatic temperature controller of cement mill |
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