CN106877604A - A kind of intelligent self-starting magneto - Google Patents
A kind of intelligent self-starting magneto Download PDFInfo
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- CN106877604A CN106877604A CN201710198357.9A CN201710198357A CN106877604A CN 106877604 A CN106877604 A CN 106877604A CN 201710198357 A CN201710198357 A CN 201710198357A CN 106877604 A CN106877604 A CN 106877604A
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- module
- temperature
- monitoring module
- magnet steel
- intelligent self
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K17/00—Asynchronous induction motors; Asynchronous induction generators
- H02K17/02—Asynchronous induction motors
- H02K17/16—Asynchronous induction motors having rotors with internally short-circuited windings, e.g. cage rotors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/22—Rotating parts of the magnetic circuit
- H02K1/27—Rotor cores with permanent magnets
- H02K1/2706—Inner rotors
- H02K1/272—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis
- H02K1/274—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets
- H02K1/2753—Inner rotors the magnetisation axis of the magnets being perpendicular to the rotor axis the rotor consisting of two or more circumferentially positioned magnets the rotor consisting of magnets or groups of magnets arranged with alternating polarity
- H02K1/276—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM]
- H02K1/2766—Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] having a flux concentration effect
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
Abstract
The invention discloses a kind of intelligent self-starting magneto, including：Threephase motor, threephase motor is started using Y Δs type, including shell, drive end bearing bracket, rear end cap, stator, rotor, fan and fan housing；Main junction box is used for the circuit connection of threephase motor, is internally provided with an assistant junction box；Test system is arranged on the inside of assistant junction box, including single-chip microcomputer, temperature monitoring module, vibration monitoring module, noise module and radio receiving transmitting module；Rotor of the invention is provided with the cast-in aluminum squirrel cage winding of asynchronous starting and the magnet steel of synchronous operation simultaneously, can be started in the way of threephase asynchronous starts, can be run with the working method of permasyn morot again simultaneously, using Y Δ Starting mode, it is more simpler than existing permasyn morot, operating efficiency brings up to 95% from the 86% of existing threephase asynchronous, and stator thermic load is the 70% of existing threephase asynchronous, and energy-saving effect is notable.
Description
Technical field
The present invention relates to the technical field of motor, more particularly to a kind of self-starting magneto.
Background technology
Motor is widely used in steel, oil field, coal, household electrical appliances, plant equipment etc. each as the power of various equipment
Plant industry.The 70% of total power consumption is accounted in our National Industrial power consumption, and the power consumption of electric system accounts for industrial total power consumption
The 60%~70% of amount.With increasingly deficient, the energy-saving pole faced as current international social development of the energy
It is urgent task, and realize the energy-saving of electromechanics trade has very important ground in whole energy-saving work
Position.
Motor go up century-old history since coming out, scientist's innovation and creation various high-low pressures, high and low rotating speed, height
Low frequency, DC-AC, and the various all kinds of motors of description.In the various performance indications of motor.Efficiency index is the most
It is important.Compared with developed countries, the existing motor average efficiency for using is only 87% in China market, and the level of efficiency is suitable
In the minimum one-level of International Electrotechnical Commission (IEC) Energy Efficiency Standard.That is IEC levels of efficiency.As can be seen here, China is energy-efficient
Development and the popularization and application aspect of motor lag far behind developed country.Consider from energy saving and environmental protection angle, carry out
Efficiently, the development work of ultra-high efficient motor is a very urgent task.
The general principle of motor is that electric energy is turned into mechanical energy to carry out driving equipment rotation.Performance ratings are of motor
Important technology performance indications.In theory by power input to a machine to power output should be close.Actual conditions are, electric
Machine in working order under, itself can produce consumption power, so the actual power of motor can only achieve the 87% of rated power.
For a long time, the top priority of engineers and technicians is to carry out careful analysis to loss of electric machine characteristic, and then is taken
Can count and various non-linear and labyrinth influence factor loss meter mark method.Research electric machine rotor different structure ginseng
Then number, material property and its influence factor are being to the every loss of motor to the specific influence degree of the loss of electric machine
On the basis of system analysis, the structure to motor is improved design, finally draws best design, reaches the purpose of consumption reduction.
Motor is played a very important role in national economy again, electric, machinery, metallurgy, building, coal, oil, change
The modern productions such as work, automobile, aircraft and shipbuilding industry and branch of industry almost be unable to do without each down to our daily life
The motor of various kinds is planted, they have been topmost motive power and drive device in current production activity and daily life.They are counted
As many as amount, range of application is wide, status it is important, almost no other equipment can compare therewith.Therefore, because motor
Failure, damage caused by accident and cause the indirect economic loss caused by plant downtime very huge.So, to motor
Running status is monitored and is very important.
Motor status refer to the operating mode of motor operation, have various performance parameters in motor operation course and generation two
Secondary effect parameter and product quality indicator parameter are described.The monitoring of motor operation turntable is, by various parameters, and to be analyzed
Treatment, the state of motor is judged according to analysis processing result.Motor is periodically or continuously monitored, including is used various surveys
Examination, analysis and distinguishing method, with reference to the historical situation and service condition of motor, understand fully the objective status of motor, obtain motor performance
Trend rule, be the performance evaluation of motor, reasonable employment, safe operation, fault diagnosis and automatically controlling for motor laid
Basis.
The problem that status monitoring needs are solved includes：
(1) study mechanism：The reflection of research motor abnormality or failure in status signal.Status signal includes various physics
And chemical quantity, such as electrical quantity (electric current, voltage or its combination), mechanical quantity (vibration), thermal technology measure (temperature, pressure, flow),
Chemical composition etc.；
(2) Signal acquiring and processing：Selected status signal is gathered by appropriate sensor, and is transmitted to signal transacting
Unit；
(3) feature extraction：Using the achievement of study mechanism, the feature letter relevant with equipment state is extracted from status signal
Number.
Motor status monitoring refers to the state for continuously or discontinuously monitoring motor.If the parameter of monitoring is undergone mutation or different
Often, it is meant that motor status there occurs great change.Status monitoring can be repaired as the diagnostic tool of malfunction monitoring and formulation
The foundation of plan.Status monitoring is conducive to preferably formulating maintenance project, so can shut down and repair when most appropriate, subtracts
Less or avoid the loss for applauding to bring suddenly.
In order to complete that motor status are monitored, electromechanical testing is most important of which link.China's Motor Measuring Technology hair
Exhibition substantially experienced following course：Each manufacturer domestic in early days carries out all using conventional electrical instrument measurement during electromechanical testing,
Whether artificial reading, manual record, artificial judgment are qualified.It has the disadvantage：In order to be able to certain every quilt in a flash of more accurately reading
Parameter is surveyed, several personal meter readings simultaneously are generally required, inefficiency, playing, obtain is data under same state.Moreover,
Because various human errors also make test data dispersiveness larger in the asynchronism of meter reading and reading, record, calculating, test
Result precision is low, poor repeatability, and present this method of testing is eliminated substantially.
With the development of computer technology, the appearance of large scale integrated circuit and microprocessor, Motor Measuring Technology enters
Microcomputer testing stage, current domestic electric machine test system is substantially that centered on PC, control electricity instrument, tester etc. enter
The row parameter of electric machine is monitored.Computer motor test system has that speed is fast, real-time is good, data volume is big, the congruent feature of function.
The content of the invention
For the problem of above-mentioned generation, it is an object of the invention to provide a kind of intelligent self-starting magneto.
To achieve these goals, the technical scheme taken of the present invention is：
A kind of intelligent self-starting magneto, wherein, including：
Threephase motor, the threephase motor is started using Y- Δs type, and the threephase motor includes shell and described
Shell front end connection drive end bearing bracket and the shell rear end connection rear end cap, be arranged on the enclosure stator,
It is arranged on fan and the wind for covering the fan that the rotor and the rear end cap of the enclosure are rotatably connected
Cover；
Main junction box, the main junction box is fixedly connected with the side of the shell, and the main junction box is used for described three
The circuit connection of phase motor, the main junction box is internally provided with an assistant junction box；
Test system, the test system is arranged on the inside of the assistant junction box, and the test system includes monolithic
Machine, temperature monitoring module, vibration monitoring module, noise module and radio receiving transmitting module, it is the temperature monitoring module, described
Vibration monitoring module and the noise module are connected with the single-chip microcomputer respectively, the radio receiving transmitting module and the monolithic
Machine is connected, and the radio receiving transmitting module is connected with host computer or switch board signal；
The temperature monitoring module includes RTD, and the RTD is used to gather the temperature of the threephase motor, bag
Include the temperature of the bearing shell of the threephase motor and the temperature of stator winding；
The vibration monitoring module includes some acceleration transducers, and some piezoelectric acceleration sensors are arranged on described outer
The outer surface of shell, some piezoelectric acceleration sensors are used for acceleration, the speed of the vibration for gathering the threephase motor
And displacement；
The noise module includes noise transducer, and the noise transducer is arranged on the one of the threephase motor
Side, the noise that the noise transducer is used to gather when the threephase motor works is strong and weak；
The analog quantity that the temperature monitoring module, the vibration monitoring module and the noise module will be collected is defeated
Enter the single-chip microcomputer, carry out AD analog-to-digital conversions by the single-chip microcomputer is converted into digital quantity by the analog quantity, by the nothing
Line transceiver module sends to the host computer or the switch board digital quantity, by the host computer or the switch board
Further data processing is carried out to the digital quantity, is shown and is formed form.
Above-mentioned intelligent self-starting magneto, wherein, the stator includes stator core and stator winding, the stator
Some slot for windings are offered on the inner periphery of iron core, some stator winding are embedded in the inside of the slot for winding.
Above-mentioned intelligent self-starting magneto, wherein, the rotor includes rotor core, rotating shaft, cast-in aluminum squirrel cage winding
And magnet steel, the rotor core is formed by stacking by some rotor punchings, offered on each rotor punching some for inlaying
The winding through hole of the embedding cast-in aluminum squirrel cage winding, along the outer rim of the rotor punching, circumferentially array sets some winding through holes
Put, be further opened with some magnet steel holes for inlaying the magnet steel on each rotor punching, some magnet steel hole positions in
The inner side of some winding through holes, circumferentially array is set in some magnet steel holes.
Above-mentioned intelligent self-starting magneto, wherein, between the inwall in some magnet steel and some magnet steel holes
Magnet steel glue or epoxy resin are filled with, the two ends of the magnet steel are connected with epoxy Boards wall respectively, some magnet steel holes
Quantity be even number more than or equal to 4.
Above-mentioned intelligent self-starting magneto, wherein, outside framework oil seal, the outside framework oil seal are also arranged with the rotating shaft
Outer rim be fixedly connected with the bore portions of the centre bore of the rear end cap.
Above-mentioned intelligent self-starting magneto, wherein, it is provided with the lateral surface of the end ring of the cast-in aluminum squirrel cage winding
Some balance columns, circumferentially array is set some balance columns, is formed for accommodating between the every two adjacent balance columns
The gap of balancing patch, some balancing patches are detachably clamped between the two adjacent balance columns, by the end
The balancing patch of diverse location and varying number is set on the lateral surface of ring with realize the rotor in the course of the work
Balance.
Above-mentioned intelligent self-starting magneto, wherein, the temperature monitoring module uses two resistance bridge structures, often
Resistance bridge structure described in one includes RTD described in three constant resistances and, and RTD described in two measures the bearing shell respectively
Temperature and the stator winding temperature, the resistance of RTD described in two varies with temperature and changes, by temperature monitoring electricity
The temperature change of RTD described in two is separately converted to voltage change by road, so as to calculate temperature change and the institute of the bearing shell
State the temperature change of stator winding.
Above-mentioned intelligent self-starting magneto, wherein, the circuit of the vibration monitoring module include charge amplifier and
Voltage adjusts amplifier, and the first order of the circuit of the vibration monitoring module is the charge amplifier, the charge amplifier
LF-response determine that the second level of the circuit of the shock module is put for voltage adjustment by feedback capacity and feedback resistance
Big device, the voltage adjustment amplifier is amplified by operational amplifier.
Above-mentioned intelligent self-starting magneto, wherein, the noise module carries out defeated in the way of serial ports is exported
Send.
Above-mentioned intelligent self-starting magneto, wherein, the signal of the temperature monitoring module, the vibration monitoring module
Signal and the noise module signal by 433M wireless way for transmitting to the host computer or the switch board,
Or the signal of the signal, the signal of the vibration monitoring module and the noise module of the temperature monitoring module passes through
RS485 communication modes are transmitted to the switch board.
As a result of above-mentioned technology, the good effect for being allowed to have compared with prior art is the present invention：
(1) rotor of the invention is provided with the cast-in aluminum squirrel cage winding of asynchronous starting and the magnet steel of synchronous operation simultaneously, so that
Can be started in the way of threephase asynchronous starts, while can be transported with the working method of permasyn morot again
OK, its Starting mode uses Y- Δ Starting mode, more simpler than existing permasyn morot, and operating efficiency is than existing
The 86% of some threephase asynchronouses brings up to 95%, and stator thermic load is the 70% of existing threephase asynchronous, energy-conservation
Effect is significant.
(2) it is of the invention by filling porcelain steel glue or epoxy resin between the hole wall in magnet steel and corresponding magnet steel hole, with
And epoxy clamping plate mode fixes magnet steel, makes connection more firm.
(3) fan housing of the invention is formed by gray cast iron casting, the wind stretched with existing use sheet metal or iron plate
Cover is compared, and improves the mechanical strength of fan housing, meanwhile, sound insulation value also more preferably, thus increased mechanical strength and reduce from
Dynamic staircase threephase asynchronous noise when in use.
(4) enamel-covered wire of stator winding of the invention improves the insulating properties of motor using F grades of enamel-covered wire.
(5) present invention sets an outside framework oil seal in the centre bore aperture inwall of rear end cap, is run well rotating shaft is not influenceed
On the premise of, further increase the barrier propterty of motor.
(6) balancing patch of the invention is arranged between the balance columns on the end ring lateral surface of cast-in aluminum squirrel cage winding, be used into
Row hamming.It is the balance mode being added on balance columns that it changes traditional balance weight.
(7) test system of the invention fully achieve it is real-time, automatic, accurately test effect, compare original artificial
Test, artificial reading, manual record and the test result degree of accuracy that causes is low, poor repeatability with it is cumbersome and there is speed
Hurry up, real-time is good, the big function congruence feature of data volume.
(8) test system of the invention fully achieves the main shaft and motor body acceleration that can by date retrieve some day
The display of degree (high-frequency/low-frequency), speed, the tendency chart of displacement and bearing bush temperature numeral and waveform, can test, records, preserve
Huge data volume, realizes and is studied with single-chip microcomputer and design motor monitoring system.
(9) test system of the invention selects STM32 series monolithics, realizes high speed, effect of low-power consumption, and use
The data is activation that radio receiving transmitting module will be monitored substantially increases efficiency to host computer or switch board, increased accuracy, removes from
Cumbersome work.
Brief description of the drawings
Fig. 1 is the overall structure partial cutaway view schematic of intelligent self-starting magneto of the invention.
Fig. 2 is the schematic diagram of the rotor punching of intelligent self-starting magneto of the invention.
Fig. 3 is the schematic diagram of the end ring of the cast-in aluminum squirrel cage winding of intelligent self-starting magneto of the invention.
Fig. 4 is the schematic diagram of the rotor balancing piece of intelligent self-starting magneto of the invention.
Fig. 5 is the block schematic illustration of intelligent self-starting magneto of the invention.
In accompanying drawing：1st, threephase motor；11st, shell；12nd, drive end bearing bracket；13rd, rear end cap；14th, stator；141st, stator core；
15th, rotor；151st, rotor core；152nd, rotating shaft；1521st, outside framework oil seal；153rd, cast-in aluminum squirrel cage winding；1531st, balance columns；
1532nd, balancing patch；153rd, winding through hole；155th, magnet steel hole；1551st, wide aperture portion；1552nd, narrower bore portion；16th, fan；17th, fan housing；
2nd, main junction box；21st, assistant junction box；3rd, single-chip microcomputer；4th, temperature monitoring module；5th, vibration monitoring module；6th, noise monitoring mould
Block；7th, radio receiving transmitting module；
Specific embodiment
The invention will be further described with specific embodiment below in conjunction with the accompanying drawings, but not as limiting to the invention.
Fig. 1 is the overall structure partial cutaway view schematic of intelligent self-starting magneto of the invention, and Fig. 2 is of the invention
The schematic diagram of the rotor punching of intelligent self-starting magneto, Fig. 5 is that the framework of intelligent self-starting magneto of the invention shows
It is intended to, refers to shown in Fig. 1, Fig. 2 and Fig. 5, shows a kind of intelligent self-starting magneto of preferred embodiment, including：Three
Phase motor 1, threephase motor is started using Y- Δs type, and threephase motor 1 includes the front end connection of shell 11 and shell 1
Drive end bearing bracket 12 and shell 1 rear end connection rear end cap 13, be arranged on inside shell 1 stator 14, be arranged on inside shell 1
Rotor 15 and the fan 16 that is rotatably connected of rear end cap 13 and the fan housing 17 for covering fan 16.
Additionally, used as a kind of preferred embodiment, intelligent self-starting magneto also includes：Main junction box 2, main junction box
2 are fixedly connected with the side of shell 11, and main junction box 2 is used for the circuit connection of threephase motor 1, and the inside of main junction box 2 sets
It is equipped with an assistant junction box 21.
Additionally, used as a kind of preferred embodiment, intelligent self-starting magneto also includes：Test system, test system
The inside of assistant junction box 21 is arranged on, test system includes single-chip microcomputer 3, temperature monitoring module 4, vibration monitoring module 5, noise
Monitoring modular 6 and radio receiving transmitting module 7, temperature monitoring module 4, vibration monitoring module 5 and noise module 6 respectively with monolithic
Machine 3 is connected, and radio receiving transmitting module 7 is connected with single-chip microcomputer 3, and radio receiving transmitting module 7 is connected with host computer or switch board signal.
Additionally, used as a kind of preferred embodiment, temperature monitoring module 4 includes RTD, RTD is used to gather three-phase
The temperature of motor, including the bearing shell of threephase motor 1 temperature and the temperature of stator winding.
Additionally, used as a kind of preferred embodiment, vibration monitoring module 5 includes some acceleration transducers, some piezoelectricity
Acceleration transducer is arranged on the outer surface of shell 11, and some piezoelectric acceleration sensors are used to gather the vibration of threephase motor
Acceleration, speed and displacement.
Additionally, used as a kind of preferred embodiment, noise module 6 includes noise transducer, and noise transducer 6 is set
In the side of threephase motor 1, the noise that noise transducer is used to gather when threephase motor 1 works is strong and weak；
Additionally, as a kind of preferred embodiment, temperature monitoring module 4, vibration monitoring module 5 and noise module 6
The analog input single-chip microcomputer that will be collected, carries out AD analog-to-digital conversions and analog quantity is converted into digital quantity by single-chip microcomputer 3, passes through
Radio receiving transmitting module 7 sends to host computer or switch board digital quantity, and traveling one is entered to digital quantity by host computer or switch board
The data processing of step, show and form form.
Additionally, used as a kind of preferred embodiment, stator 14 includes stator core 141 and stator winding, stator core 141
Inner periphery on offer some slot for windings, some stator winding are embedded in the inside of slot for winding.
Fig. 3 is the schematic diagram of the end ring of the cast-in aluminum squirrel cage winding of intelligent self-starting magneto of the invention, and Fig. 4 is this hair
The schematic diagram of the rotor balancing piece of bright intelligent self-starting magneto, continuing with referring to shown in Fig. 1 to Fig. 4.
Additionally, used as a kind of preferred embodiment, rotor 15 includes rotor core 151, rotating shaft 152, cast-in aluminum squirrel cage winding
153 and magnet steel, rotor core 151 is formed by stacking by some rotor punchings, is offered on each rotor punching some for inlaying
The winding through hole 154 of cast-in aluminum squirrel cage winding 153, some winding through holes 154 along rotor punching outer rim circumferentially array set, often
Some magnet steel holes 155 for inlaying magnet steel are further opened with one rotor punching, some magnet steel holes 155 are located at some winding through holes
Inner side, some magnet steel holes 155 circumferentially array set.
Additionally, as a kind of preferred embodiment, magnetic is filled between some magnet steel and the inwall in some magnet steel holes 155
Steel glue or epoxy resin, the two ends of magnet steel are connected with epoxy Boards wall respectively, the quantity in some magnet steel holes 155 be more than or equal to
4 even number, while also constituting N, S number of pole-pairs.
Additionally, as a kind of preferred embodiment, outside framework oil seal 1521, outside framework oil seal 1521 are also arranged with rotating shaft 152
Outer rim be fixedly connected with the bore portions of the centre bore of rear end cap 13.
Additionally, as a kind of preferred embodiment, being provided with the lateral surface of the end ring of cast-in aluminum squirrel cage winding 153 some flat
Weighing apparatus post 1531, circumferentially array is set some balance columns 1531, forms flat for accommodating between every two adjacent balance columns 1531
The gap of weighing apparatus piece 1532, some balancing patches 1532 are detachably clamped between two adjacent balance columns 1531, by end ring
Lateral surface on the balancing patch 1531 of diverse location and varying number is set to realize the balance in the course of the work of rotor 15.
Additionally, used as a kind of preferred embodiment, continuing with referring to shown in Fig. 1 to Fig. 5, temperature monitoring module 4 uses two
Resistance bridge structure, each resistance bridge structure includes three constant resistances and a RTD, i.e. RTD 41 and RTD
42, RTD 41 and RTD 42 measure the temperature and the temperature of stator winding of bearing shell respectively, RTD 41 and RTD 42
Resistance is varied with temperature and changed, and is separately converted to the temperature change of RTD 41 and RTD 42 by temperature observation circuit
Voltage change, so as to calculate the temperature change of bearing shell and the temperature change of stator winding.
Additionally, used as a kind of preferred embodiment, the circuit of vibration monitoring module 5 includes that charge amplifier and voltage are adjusted
Amplifier, the first order of the circuit of vibration monitoring module 5 is charge amplifier, and the LF-response of charge amplifier is by feedback capacity
Determined with feedback resistance, the second level of the circuit of shock module is voltage adjustment amplifier, and voltage adjustment amplifier passes through computing
Amplifier is amplified.
Additionally, used as a kind of preferred embodiment, noise module 6 is conveyed in the way of serial ports is exported.
Additionally, as a kind of preferred embodiment, the signal of temperature monitoring module 4, the signal of vibration monitoring module 5 and make an uproar
The signal of sound monitoring modular 6 by 433M wireless way for transmitting to host computer or switch board, or temperature monitoring module 4 letter
Number, the signal of the signal of vibration monitoring module 5 and noise module 6 transmitted to switch board by RS485 communication modes.
Preferred embodiments of the present invention are these are only, embodiments of the present invention and protection domain is not thereby limited.
The present invention on the basis of the above also have mode is implemented as follows：
In further embodiment of the present invention, continuing with referring to shown in Fig. 1 to Fig. 5, the cross section in some magnet steel holes 155 is equal
It is step type, the cross section in some magnet steel holes 155 includes wide aperture portion 1551 and narrower bore portion 1552, the narrower bore in some magnet steel holes 115
Towards the center of circle of stator punching, the wide aperture portion 1551 in some magnet steel holes 155 is respectively positioned on the outside in narrower bore portion 1552 in portion 1552.
In further embodiment of the present invention, the enamel-covered wire of stator winding uses F grades of enamel-covered wire.
In further embodiment of the present invention, fan housing 17 is formed using the gray cast iron casting of model HT200, fan housing 17
Side offers some fresh air inlets.Compared with the fan housing that existing use sheet metal or iron plate are stretched, the machinery of fan housing 17
Intensity and sound insulation value are all lifted.
In further embodiment of the present invention, temperature monitoring module 4, vibration monitoring module 5 and noise module 6 lead to
The single-chip microcomputer 3 that wiring transferred data in assistant junction box 21 is crossed to be processed and transmitted.
In further embodiment of the present invention, single-chip microcomputer 3 selects STM32F103VBT6 single-chip microcomputers, STM32F103xB series
Single-chip microcomputer has 2 12 analog-digital converters, 1 μ s conversion times (16 passage), 7 channel DMA controllers, up to 80 quick I/O
Port, up to 7 timers have 3 16 bit timing devices, and each timer has up to 4 to compare for input capture/output
PWM or the passage of step-by-step counting, are the single-chip microcomputers of the high speed/low-power consumption of a new generation.
In further embodiment of the present invention, RTD 41 and wave point group 42 in temperature monitoring module 4 are thermal resistance,
When Pt1000 resistance changes, test section produces an electrical potential difference, and thus electrical potential difference converses temperature.Amplify by signal afterwards
Circuit, including filter circuit, the pressure drop to being produced on Pt1000 is amplified convenient reading.Afterwards using AD620 to simulation
Signal is changed, and AD620 is a low cost, high-precision meter amplifier, it is only necessary to which non-essential resistance sets gain,
Gain ranging is 1 to 10000, and the features such as with small volume, small low in energy consumption, noise and wide power supply scope.The number of gained
Word amount can directly transport to single-chip microcomputer 3, so as to obtain the data of motor temperature, further data processing, display and formation report
Table.
In further embodiment of the present invention, vibration monitoring module 5 uses piezoelectric acceleration sensor, belongs to inertia-type biography
Sensor.Circuit is made up of charge amplifier and voltage adjustment amplifier, and the first order is charge amplifier, and its LF-response is by feeding back
Electric capacity and feedback resistance are determined.The second level is output adjustment amplifier, is amplified by operational amplifier, is adjusted so as to required size
The digital quantity that analog input STM32 afterwards can need by treatment, so as to obtain the data of motor vibration, further
Data processing, display and formation form.
In further embodiment of the present invention, radio receiving transmitting module module 6 selects SV610 small size embedded radio transparent transmissions
Module, this is a highly integrated wireless data transfer module, and the Transistor-Transistor Logic level serial ports that it provides standard supplies customer equipment pair
Connect, user can be internally integrated high performance radio frequency by PC softwares come the relevant parameter of configuration module in the configuration mode
Chip.The power output of its extremely low receiving sensitivity and 100mW is able to ensure module communication performance that spacious transmission range can
Up to 1400 meters.Module small volume, low in energy consumption, communication distance are remote, strong antijamming capability, reliable and stable.
In further embodiment of the present invention, to improve the performance of motor, the Starting mode of self-starting magneto is saved
The frequency converter of costliness is fallen, has been started using Y-Δ type, greatly facilitated user and use.The taking into full account property in motor designs
The main parts sizes such as valency ratio, stator, iron core, support, end cap, bearing to motor use enterprise's existing scheme, by analysis meter
Contrast is calculated, by the asynchronous starting magneto iron of 5.5KW, 7.5KW, 11KW, 15KW, 18.5KW, 22KW, 27KW, 30KW, 37KW
Core length and coil optimize design using FInite Element.The method can conveniently process arbitrary structures, Arbitrary Boundary Conditions
And the saturation and the challenge such as non-linear of motor internal, there is unique advantage in terms of design of electrical motor.Therefore, for super
High efficiency motor loss carries out Finite Element Simulation Analysis research, important for having from sight angle announcement motor internal loss characteristics
Theory value.Rotor is run simultaneously using asynchronous starting.The permanent magnet of rotor uses NdFe35 materials, because rotor loss is low,
Synchronizing speed is without slippage, therefore efficiency can bring up to more than 93.7% by using the 86% of asynchronous machine originally, reach IE4
Grade international efficiency classification standard of standard, i.e., 7.Power factor (PF) brings up to more than 0.95 by original 0.73, and locked-rotor torque multiple is by 2
More than 3 times have been reached again, and arrow step torque is up to more than 3 times.In order to improve the real-time monitoring to electric motor state, optimize motor
Test, will be motor be furnished with real time execution test system, make its monitoring have speed is fast, real-time is good, the big work(of data volume
Can congruent feature.It is core that the system uses ARM process chips SM32, and motor bearing shell temperature is gathered using PT1000 RTDs
Degree, and detect that circuit conversion analog quantity is that digital quantity is input into STM32 by it.Put to measure using in motor surface security protection multiple
The vibration state of motor body, sensor uses acceleration transducer, the acceleration of vibration, speed, the relative change of displacement
Reflect the changed condition of motor long-term work.The noise monitoring of motor is picked up by the noise transducer beside motor
Take and obtain.The various data that this acquisition system is collected can be by way of radio communication by number with exchanging for external signal
Further data processing, display and formation form are done according to sending to host computer or switch board.
Preferred embodiments of the present invention are these are only, embodiments of the present invention and protection domain is not thereby limited, it is right
For those skilled in the art, should can appreciate that all utilization description of the invention and equivalent done by diagramatic content are replaced
Change and obviously change resulting scheme, should be included in protection scope of the present invention.
Claims (10)
1. a kind of intelligent self-starting magneto, it is characterised in that including：
Threephase motor, the threephase motor is started using Y- Δs type, and the threephase motor includes shell and the shell
Front end connection drive end bearing bracket and the shell rear end connection rear end cap, be arranged on the enclosure stator, set
The fan being rotatably connected in the rotor and the rear end cap of the enclosure and the fan housing for covering the fan；
Main junction box, the main junction box is fixedly connected with the side of the shell, and the main junction box is used for the three-phase electricity
The circuit connection of motivation, the main junction box is internally provided with an assistant junction box；
Test system, the test system is arranged on the inside of the assistant junction box, and the test system includes single-chip microcomputer, temperature
Degree monitoring modular, vibration monitoring module, noise module and radio receiving transmitting module, the temperature monitoring module, the vibration
Monitoring modular and the noise module are connected with the single-chip microcomputer respectively, and the radio receiving transmitting module connects with the single-chip microcomputer
Connect, the radio receiving transmitting module is connected with host computer or switch board signal；
The temperature monitoring module includes RTD, and the RTD is used to gather the temperature of the threephase motor, including institute
State the temperature of the bearing shell of threephase motor and the temperature of stator winding；
The vibration monitoring module includes some acceleration transducers, and some piezoelectric acceleration sensors are arranged on the shell
Outer surface, some piezoelectric acceleration sensors are used for acceleration, speed and the position of the vibration for gathering the threephase motor
Move；
The noise module includes noise transducer, and the noise transducer is arranged on the side of the threephase motor,
The noise that the noise transducer is used to gather when the threephase motor works is strong and weak；
The analog input institute that the temperature monitoring module, the vibration monitoring module and the noise module will be collected
Single-chip microcomputer is stated, carry out AD analog-to-digital conversions by the single-chip microcomputer is converted into digital quantity by the analog quantity, by the wireless receipts
Hair module sends to the host computer or the switch board digital quantity, by the host computer or the switch board to institute
Stating digital quantity carries out further data processing, shows and form form.
2. intelligent self-starting magneto according to claim 1, it is characterised in that the stator include stator core and
Stator winding, offers some slot for windings on the inner periphery of the stator core, some stator winding be embedded in it is described around
The inside of group groove.
3. intelligent self-starting magneto according to claim 1, it is characterised in that the rotor include rotor core,
Rotating shaft, cast-in aluminum squirrel cage winding and magnet steel, the rotor core are formed by stacking by some rotor punchings, on each rotor punching
Some winding through holes for inlaying the cast-in aluminum squirrel cage winding are offered, some winding through holes are along the rotor punching
Circumferentially array is set outer rim, and some magnet steel holes for inlaying the magnet steel are further opened with each rotor punching, if
The magnet steel hole position is done in the inner side of some winding through holes, circumferentially array is set in some magnet steel holes.
4. intelligent self-starting magneto according to claim 1, it is characterised in that some magnet steel are described with some
Magnet steel glue or epoxy resin are filled between the inwall in magnet steel hole, the two ends of the magnet steel connect with epoxy Boards wall respectively
Connect, the quantity in some magnet steel holes is the even number more than or equal to 4.
5. intelligent self-starting magneto according to claim 1, it is characterised in that be also arranged with skeleton in the rotating shaft
Oil sealing, the outer rim of the outside framework oil seal is fixedly connected with the bore portions of the centre bore of the rear end cap.
6. intelligent self-starting magneto according to claim 1, it is characterised in that the end ring of the cast-in aluminum squirrel cage winding
Lateral surface on be provided with some balance columns, circumferentially array is set some balance columns, the every two adjacent balance columns
Between form gap for accommodating balancing patch, some balancing patches be detachably clamped at the two adjacent balance columns it
Between, the balancing patch of diverse location and varying number is set to realize the rotor by the lateral surface of the end ring
Balance in the course of the work.
7. intelligent self-starting magneto according to claim 1, it is characterised in that the temperature monitoring module uses two
Resistance bridge structure, each resistance bridge structure includes RTD described in three constant resistances and, platinum electricity described in two
Resistance measures the temperature of the bearing shell and the temperature of the stator winding respectively, and the resistance of RTD described in two is varied with temperature and become
Change, the temperature change of RTD described in two is separately converted to by voltage change by temperature observation circuit, it is described so as to calculate
The temperature change of the temperature change of bearing shell and the stator winding.
8. intelligent self-starting magneto according to claim 1, it is characterised in that the circuit of the vibration monitoring module
Including charge amplifier and voltage adjustment amplifier, the first order of the circuit of the vibration monitoring module is electric charge amplification
Device, the LF-response of the charge amplifier determines by feedback capacity and feedback resistance, the second of the circuit of the shock module
Level adjusts amplifier for the voltage, and the voltage adjustment amplifier is amplified by operational amplifier.
9. intelligent self-starting magneto according to claim 1, it is characterised in that the noise module is with serial ports
The mode of output is conveyed.
10. intelligent self-starting magneto according to claim 1, it is characterised in that the letter of the temperature monitoring module
Number, the signal of the signal of the vibration monitoring module and the noise module by 433M wireless way for transmitting to described
Host computer or the switch board, or the signal of the temperature monitoring module, the signal of the vibration monitoring module and the noise
The signal of monitoring modular is transmitted to the switch board by RS485 communication modes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198357.9A CN106877604A (en) | 2017-03-29 | 2017-03-29 | A kind of intelligent self-starting magneto |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710198357.9A CN106877604A (en) | 2017-03-29 | 2017-03-29 | A kind of intelligent self-starting magneto |
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| CN106877604A true CN106877604A (en) | 2017-06-20 |
Family
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| CN201710198357.9A Pending CN106877604A (en) | 2017-03-29 | 2017-03-29 | A kind of intelligent self-starting magneto |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206615A (en) * | 2018-03-26 | 2018-06-26 | 上海特波电机有限公司 | Asynchronous machine with vibration damping thermometric |
| CN108964362A (en) * | 2018-09-06 | 2018-12-07 | 上海旗升电气股份有限公司 | It is a kind of to be able to achieve the online intelligent electric machine from monitoring and from maintenance |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238733A (en) * | 1979-05-15 | 1980-12-09 | Canadian General Electric Company Limited | Corona discharge monitor system |
| US5889378A (en) * | 1996-09-19 | 1999-03-30 | Denso Corporation | Motor-assisted power steering apparatus |
| CN101562372B (en) * | 2009-04-10 | 2012-11-14 | 北京新宇航世纪科技有限公司 | Self-control energy-saving motor |
| CN103580389A (en) * | 2012-08-08 | 2014-02-12 | 英飞凌科技股份有限公司 | Remote rotor parameter sensor for electric driver |
| CN204836096U (en) * | 2015-07-08 | 2015-12-02 | 上海大学 | Piezoelectric acceleration sensor's charge amplifier |
| CN105587679A (en) * | 2014-10-21 | 2016-05-18 | 祁艳 | Mine ventilator temperature inspecting instrument based on Pt100 |
| CN205356107U (en) * | 2015-12-28 | 2016-06-29 | 上海浩正电气有限公司 | Three phase motor for asynchronous starting synchronous operation automatic escalator |
| CN205647188U (en) * | 2016-05-23 | 2016-10-12 | 西安安凡达智能电机有限公司 | Synchronous servo motor of permanent magnetism uses intelligent encoder |
-
2017
- 2017-03-29 CN CN201710198357.9A patent/CN106877604A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4238733A (en) * | 1979-05-15 | 1980-12-09 | Canadian General Electric Company Limited | Corona discharge monitor system |
| US5889378A (en) * | 1996-09-19 | 1999-03-30 | Denso Corporation | Motor-assisted power steering apparatus |
| CN101562372B (en) * | 2009-04-10 | 2012-11-14 | 北京新宇航世纪科技有限公司 | Self-control energy-saving motor |
| CN103580389A (en) * | 2012-08-08 | 2014-02-12 | 英飞凌科技股份有限公司 | Remote rotor parameter sensor for electric driver |
| CN105587679A (en) * | 2014-10-21 | 2016-05-18 | 祁艳 | Mine ventilator temperature inspecting instrument based on Pt100 |
| CN204836096U (en) * | 2015-07-08 | 2015-12-02 | 上海大学 | Piezoelectric acceleration sensor's charge amplifier |
| CN205356107U (en) * | 2015-12-28 | 2016-06-29 | 上海浩正电气有限公司 | Three phase motor for asynchronous starting synchronous operation automatic escalator |
| CN205647188U (en) * | 2016-05-23 | 2016-10-12 | 西安安凡达智能电机有限公司 | Synchronous servo motor of permanent magnetism uses intelligent encoder |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108206615A (en) * | 2018-03-26 | 2018-06-26 | 上海特波电机有限公司 | Asynchronous machine with vibration damping thermometric |
| CN108964362A (en) * | 2018-09-06 | 2018-12-07 | 上海旗升电气股份有限公司 | It is a kind of to be able to achieve the online intelligent electric machine from monitoring and from maintenance |
| CN108964362B (en) * | 2018-09-06 | 2023-12-22 | 浙江中控慧机科技有限公司 | Intelligent motor capable of realizing on-line self-monitoring and self-maintenance |
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Application publication date: 20170620 |