CN106975539A - The control method and device of equipment for pulverizing material - Google Patents
The control method and device of equipment for pulverizing material Download PDFInfo
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- CN106975539A CN106975539A CN201710364165.0A CN201710364165A CN106975539A CN 106975539 A CN106975539 A CN 106975539A CN 201710364165 A CN201710364165 A CN 201710364165A CN 106975539 A CN106975539 A CN 106975539A
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- frequency converter
- motor
- rotating speed
- drive signal
- rotary shaft
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/02—Crushing or disintegrating by roller mills with two or more rollers
- B02C4/08—Crushing or disintegrating by roller mills with two or more rollers with co-operating corrugated or toothed crushing-rollers
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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
- B02C4/00—Crushing or disintegrating by roller mills
- B02C4/28—Details
- B02C4/42—Driving mechanisms; Roller speed control
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Pulverization Processes (AREA)
- Disintegrating Or Milling (AREA)
Abstract
The present invention proposes the differential speed control method and device of a kind of equipment for pulverizing material, after the current rotating speed of the first motor and the current rotating speed for the second motor for driving the rotary shaft of equipment for pulverizing material second to rotate for driving the rotary shaft of equipment for pulverizing material first to rotate is obtained, if the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, then adjust the drive signal with the drive signal of the first frequency converter of first motor connection and with the second frequency converter of the second motor connection, to increase the ratio of the drive signal of the first frequency converter and the drive signal of the second frequency converter；Wherein, the default ratio is more than 1, can reduce the influence to material crushing effect when the speed difference of two rotary shafts changes.
Description
Technical field
The present invention relates to equipment for pulverizing material field, more particularly to a kind of control method and device of equipment for pulverizing material.
Background technology
Equipment for pulverizing material can be used for tearing up or comminuting matter, and after material is entered, material is squeezed by two rotary shafts
The mode such as pressure or cutting reaches the effect of broken material.
To make material reach optimal crushing effect, it will usually make two rotary shafts keep certain speed difference, yet with
During charging, the size or material of material are not to maintain constant, and even same material, its attribute can also change,
For example, when material to be broken suddenly becomes the larger material of granularity or is changed into the harder material of material, then by two rotations
When rotating shaft is crushed, steep increasing can occur for the frictional force that rotary shaft is subject to, so that the speed difference of two rotary shafts can be caused to change,
Influence crushing effect.
The content of the invention
Based on this, the present invention proposes the differential speed control method and device of a kind of equipment for pulverizing material, can be in two rotations
When the speed difference of rotating shaft changes, reduce the influence to material crushing effect.
A kind of control method of equipment for pulverizing material, comprises the following steps：
Obtain for drive the rotary shaft of equipment for pulverizing material first rotate the first motor current rotating speed and for driving
The current rotating speed of second motor of the dynamic rotary shaft of equipment for pulverizing material second rotation；
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, adjustment and institute
The drive signal of the first frequency converter of the first motor connection and the drive signal with the second frequency converter of the second motor connection are stated,
To increase the ratio of the drive signal of the first frequency converter and the drive signal of the second frequency converter；Wherein, the default ratio is more than
1。
A kind of control device of equipment for pulverizing material, including：
Controller, the first frequency converter, the first motor for driving the rotation of the rotary shaft of equipment for pulverizing material first, second become
Frequency device, the second motor for driving the rotary shaft of equipment for pulverizing material second to rotate；First frequency converter and the described first electricity
Machine is connected, second frequency converter and the second motor connection；
The controller is used to obtain the current rotating speed for being used for driving the first motor and working as the second motor of driving
Preceding rotating speed；
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, first is adjusted
The drive signal of the drive signal of frequency converter and the second frequency converter, to increase drive signal and the second frequency conversion of the first frequency converter
The ratio of the drive signal of device；Wherein, the default ratio is more than 1.
The control method and device of above-mentioned equipment for pulverizing material, the first motor is used to drive the first of equipment for pulverizing material to revolve
Rotating shaft rotates, and the second motor is used to drive the second rotary shaft of equipment for pulverizing material to rotate, and the default ratio is more than 1, that is, says
Bright default first rotary shaft rotating speed is more than default second rotary shaft rotating speed or default first motor speed is more than the second motor
Rotating speed, first the first frequency converter of motor connection is worked by first the first motor of Frequency Converter Control, second the second frequency conversion of motor connection
Device, is worked by second the second motor of Frequency Converter Control, detects the current rotating speed of the first motor and the current rotating speed of the second motor,
Then the ratio between the current rotating speed of the first motor and the current rotating speed of the second motor are calculated, if calculate obtain the first motor work as forward
The ratio of speed and the current rotating speed of the second motor is less than default ratio, illustrates, may put into after material, and current material particles become big
Cause the frictional force between the first rotary shaft, material and the second rotary shaft to become big etc. reason, exceed the nominal load of motor,
The frictional force so received by the first rotary shaft is in opposite direction with its rotating torque, and the first rotary shaft slows, the second rotary shaft
It is identical with its rotating torque direction by frictional force so that the second rotary shaft rotating speed accelerates so that the first rotary shaft present speed with
Second rotary shaft present speed tends to be close, and speed difference diminishes, then, increase drive signal and the second frequency conversion of the first frequency converter
The ratio of the drive signal of device, makes the ratio increase of the output signal of frequency converter, that is, increases the input signal of the first motor and the
The ratio of the input signal of two motors so that the rotating speed of the first motor-driven first rotary shaft and second motor-driven second
The ratio increase of the rotating speed of rotary shaft, it is poor to reduce the present speed between the first rotary shaft and the second rotary shaft, therefore the thing
Expect that the differential speed control method of disintegrating apparatus can reduce to material crushing effect when the speed difference of two rotary shafts changes
Influence.
Brief description of the drawings
Fig. 1 is a kind of schematic flow sheet of the control method of equipment for pulverizing material of the present invention；
Fig. 2 be one embodiment in a kind of equipment for pulverizing material control method schematic flow sheet；
Fig. 3 is a kind of structural representation of the control device of equipment for pulverizing material of the present invention；
Fig. 4 be one embodiment in a kind of equipment for pulverizing material control device structural representation.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Referring to Fig. 1, schematic flow sheets of the Fig. 1 for a kind of differential speed control method of equipment for pulverizing material of the present invention.
Referring to Fig. 1, the differential speed control method of the equipment for pulverizing material of present embodiment, it may include following steps：
S11：Obtain for drive the rotary shaft of equipment for pulverizing material first rotate the first motor current rotating speed and use
In the current rotating speed of the second motor of the driving rotary shaft of equipment for pulverizing material second rotation；
S12：If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, adjust
Driving with the drive signal of the first frequency converter of first motor connection and with the second frequency converter of the second motor connection
Signal, to increase the ratio of the drive signal of the first frequency converter and the drive signal of the second frequency converter；Wherein, the default ratio
More than 1.
Present embodiment, the first motor is used to drive the first rotary shaft of equipment for pulverizing material to rotate, and the second motor is used for
The second rotary shaft rotation of equipment for pulverizing material is driven, the first motor is used to drive the first rotary shaft of equipment for pulverizing material to revolve
Turn, the second motor is used to drive the second rotary shaft of equipment for pulverizing material to rotate, and the default ratio is more than 1, that is, illustrate default
The first rotary shaft rotating speed be more than default second rotary shaft rotating speed or default first motor speed is more than the second motor speed, the
One the first frequency converter of motor connection, is worked by first the first motor of Frequency Converter Control, second the second frequency converter of motor connection, by the
Two the second motors of Frequency Converter Control work, and detect the current rotating speed of the first motor and the current rotating speed of the second motor, Ran Houji
The ratio between the current rotating speed of the first motor and the current rotating speed of the second motor are calculated, if calculating the current rotating speed for obtaining the first motor and the
The ratio of the current rotating speed of two motors is less than default ratio, illustrates, may put into after material, and current material particles become the reason such as big
Cause the frictional force between the first rotary shaft, material and the second rotary shaft to become big, exceed the nominal load of motor, then because
The frictional force that first rotary shaft is received is in opposite direction with its rotating torque, and the first rotary shaft is slowed, and the second rotary shaft is rubbed
Power is identical with its rotating torque direction so that the second rotary shaft rotating speed accelerates so that the first rotary shaft present speed and the second rotation
Rotating shaft present speed tends to be close, and speed difference diminishes, then, increase the drive of the drive signal and the second frequency converter of the first frequency converter
The ratio of dynamic signal, makes the ratio increase of the output signal of frequency converter, that is, increases the input signal and the second motor of the first motor
Input signal ratio so that the rotating speed of the first motor-driven first rotary shaft and the second motor-driven second rotary shaft
Rotating speed ratio increase, it is poor to reduce the present speed between the first rotary shaft and the second rotary shaft, the material crush sets
Standby differential speed control method can reduce the influence to material crushing effect when the speed difference of two rotary shafts changes.
Present embodiment, default ratio can be adjusted according to actual needs, calculate the current rotating speed for obtaining the first motor and the
The ratio of the current rotating speed of two motors is less than default ratio, it is also possible to because default first rotary shaft rotating speed with it is default auxiliary
The reason for helping the ratio of rotating speed to increase suddenly, for example, material to be comminuted is originally a kind of small material of soft particle, is replaced by
A kind of big material of particle of material hard is, it is necessary to bigger speed difference reaches more preferably crushing effect, therefore default first
The ratio of rotary shaft rotating speed and default auxiliary rotating speed is also required to tune up, and current first rotary shaft rotating speed is controlled and current to drive
Second rotary shaft rotating speed speed difference becomes big, to improve crushing material effect.Wherein, default first rotary shaft rotating speed can be first
First rotary shaft rotating speed of the motor under rated output power, default second rotary shaft rotating speed can be the second motor specified defeated
The second rotary shaft rotating speed gone out under power.Such as because changing material, default ratio is tuned up, then, obtaining working as the first motor
, can be by increasing the drive signal of the first motor and reducing the drive of the second motor after the current rotating speed of preceding rotating speed and the second motor
Dynamic signal increases the speed difference of the current rotating speed of the first motor and the current rotating speed of the second motor.
First rotary shaft can be main shaft (friction mandrel), and second rotary shaft can be asessory shaft (charging axle), be used for
Enter material.
In one embodiment, referring to Fig. 2, the differential speed control method of the equipment for pulverizing material, further comprising the steps of：
S13：If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is more than default ratio, adjust
With the drive signal and the drive signal of the second frequency converter of the first frequency converter of first motor connection, to reduce the first frequency conversion
The ratio of the drive signal of the drive signal of device and the second frequency converter.
If the ratio for calculating the current rotating speed of the current rotating speed for obtaining the first motor and the second motor is more than default first
The ratio of rotary shaft rotating speed and default auxiliary rotating speed, for example, before and after material is thrown, the second motor may be hindered by external force,
Cause the second rotary shaft rotating speed of the second motor to reduce and (enter inventory to tail off, comminuting matter quantitative change is few), and cause calculating to obtain
The first motor current rotating speed and the second motor current rotating speed ratio be more than default first rotary shaft rotating speed with it is default
Auxiliary rotating speed ratio, speed difference becomes big, then, reduce the drive signal of the first frequency converter and the driving letter of the second frequency converter
Number ratio, reduce the ratio of the output signal of frequency converter, that is, reduce the defeated of the input signal of the first motor and the second motor
Enter the ratio of signal so that the rotating speed of the first motor-driven first rotary shaft and turn of the second motor-driven second rotary shaft
The ratio of speed reduces, poor to reduce the present speed between the first rotary shaft and the second rotary shaft, the equipment for pulverizing material
Differential speed control method can reduce the influence to material crushing effect when the speed difference of two rotary shafts becomes big.Present embodiment,
The ratio for calculating the current rotating speed of the current rotating speed for obtaining the first motor and the second motor is more than default first rotary shaft rotating speed
With the ratio of default auxiliary rotating speed, it is also possible to because the ratio of default first rotary shaft rotating speed and default auxiliary rotating speed
The reason reduced suddenly, for example, material to be comminuted is originally a kind of big material of particle of hard, is replaced by a kind of material soft
The small material of particle, crushed without larger speed difference, therefore default first rotary shaft rotating speed and default auxiliary rotating speed
Ratio can turn down, to drive current first rotary shaft rotating speed of control to diminish with current second rotary shaft rotating speed speed difference, to subtract
Small power output, saves the energy, while ensureing crushing material effect.
For step S12, in one embodiment, adjustment and the drive signal of the first frequency converter of first motor connection
With the drive signal of the second frequency converter, to increase the ratio of the drive signal of the first frequency converter and the drive signal of the second frequency converter
Value, comprises the following steps：
Reduce the drive signal of the first frequency converter, and reduce the drive signal of the second frequency converter, to increase the first frequency converter
Drive signal and the second frequency converter drive signal ratio；Wherein, the reduction amplitude of the drive signal of the second frequency converter is high
In the reduction amplitude of the drive signal of the first frequency converter.
It may put into after material, current material particles, which become the reason such as big, causes the first rotary shaft, material and the second rotation
Frictional force between axle becomes big, has exceeded the nominal load of motor, then the frictional force and its rotatory force received by the first rotary shaft
Square is in opposite direction, and the first rotary shaft slows, and the second rotary shaft is identical with its rotating torque direction by frictional force so that second
Rotary shaft rotating speed accelerates so that the first rotary shaft present speed tends to be close with the second rotary shaft present speed, and speed difference diminishes,
So then it need to reduce the frictional force that the first rotary shaft and the second rotary shaft are subject to while comminuting matter, then the can be reduced
The drive signal of one frequency converter,
In the present embodiment, reduce the drive signal of the first frequency converter, the speed of the first rotary shaft can be reduced, first can be reduced
The frictional force that rotary shaft is subject to, furthermore, because current friction increase causes the first rotation axle speed to reduce, and because of the line of the first motor
Enclose resistance constant, the first rotation axle speed, which reduces, can cause the first current of electric to increase, and produce Joule heat, therefore reduce the first frequency conversion
The drive signal of device, can protect the first motor not because heating is damaged；Reduce the drive signal of the second frequency converter, make the second rotary shaft
Speed reduces, and to reduce charging rate, can reduce the friction that the second rotary shaft and the first rotary shaft are subject to, furthermore, because of friction
Increase causes the second rotation axle speed to be accelerated, and the second motor can produce induced electromotive force so that the increase of the second current of electric, easily
The second motor is burnt, therefore reduces the drive signal of the second frequency converter, the second motor can be protected not to be burned out.In the present embodiment, the
Reduction amplitude of the reduction amplitude of the drive signal of two frequency converters higher than the drive signal of the first frequency converter, it is possible to increase the first frequency conversion
The ratio of the drive signal of the drive signal of device and the second frequency converter, to increase the speed of the first rotary shaft and the second rotary shaft
Difference, improves crushing material effect.
Further, in one embodiment, the drive signal of the first frequency converter is being reduced, and reduce the drive of the second frequency converter
After dynamic signal, if the ratio for detecting the current rotating speed of the first motor and the current rotating speed of the second motor is more than default ratio,
Then increase the drive signal of the first frequency converter, and increase the drive signal of the second frequency converter, to reduce the driving of the first frequency converter
The ratio of the drive signal of signal and the second frequency converter；Wherein, the increase amplitude of the second transducer drive signal becomes higher than first
The increase amplitude of the drive signal of frequency device.
In the present embodiment, reducing the drive signal of the first frequency converter, after the drive signal for reducing the second frequency converter, the
First rotation axle speed of one transducer drive diminishes, and the speed of the second motor-driven second rotary shaft diminishes, if detecting
The ratio of the current rotating speed of first motor and the current rotating speed of the second motor is more than default first rotary shaft rotating speed and the second rotation
The ratio of rotating shaft rotating speed, illustrates that the material that the second rotary shaft is entered is few to the degree for being unsatisfactory for the cutting of the first rotary shaft, crushing material
Amount can also tail off, and, axle speed is too small can also influence crushing effect with the second rotation for the first rotary shaft, to ensure crushing material
Amount, should increase the drive signal of the first frequency converter, and increase the drive signal of the second frequency converter, to increase the first rotary shaft and the
The rotating speed of two rotary shafts, increases into inventory, improves crushing material amount.
For step S11, include in one embodiment, the step of the current rotating speed for detecting the second motor：
The current flow of the second motor is obtained, the current rotating speed of the second motor is calculated according to the current flow of the second motor；
Or,
The current rotating speed of the second rotary shaft is obtained, forward is worked as according to the current rotating speed of the second rotary shaft the second motor of calculating
Speed.
The present embodiment, when the first rotary shaft is interacted with comminuting matter with the second rotary shaft, produces frictional force, and drives
Second rotary shaft rotating speed accelerates, and the second rotation axle speed accelerates so that the actual speed of the second motor is more than what frequency converter was exported
Synchronous rotational speed, then the second motor inevitably has power generation process, induced-current and induced electromotive force are reflected in second
In the input of motor, then, the current flow of the second motor also has because of faster rotational speed in addition to the second frequency converter synchronism output
The induced-current brought, this is also indicated that, the rotating speed of the rotating speed of the second motor and the second rotary shaft is current defeated with the second motor
Enter that electric current is proportional, the current flow of the second motor of detection can reflect the current rotating speed of the second motor.And electric current is easy
Detection, is the current flow of detectable second motor by the analog acquisition equipment such as current sensor.
For step S11, include in one embodiment, the step of the current rotating speed for obtaining the first motor：
The frequency of the output current signal of the first frequency converter is obtained, the first motor is calculated according to the frequency of output current signal
Current rotating speed；
Or,
The current rotating speed of the first rotary shaft is obtained, forward is worked as according to the current rotating speed of the first rotary shaft the first motor of calculating
Speed.
The present embodiment, when the first rotary shaft is interacted with comminuting matter with the second rotary shaft, generation frictional force, and motor
Rated power be not enough to eliminate the influence that brings of frictional force again, then, frictional force can cause the first rotary shaft to slow, because
It is less than the synchronous rotational speed provided for the first motor of frequency converter, the electric current increase of the first motor, first for the current rotating speed of motor
The output current increase of frequency converter, the frequency reduction of the output current signal of the first frequency converter, the current rotating speed with the first motor
Variation tendency is identical, therefore the current rotating speed of the first motor can be calculated according to the frequency of output current signal.
In one embodiment, the differential speed control method of the equipment for pulverizing material is further comprising the steps of：First is obtained to become
The output electric signal of frequency device, if the output electric signal of the first frequency converter is more than default first frequency converter and exports electric signal threshold value,
Then the electric signal in the output electric signal of first frequency converter beyond default first frequency converter output electric signal threshold value is passed through
First energy feedback unit is fed back to AC network；Wherein, first energy feedback unit is connected with the first frequency converter.
Output electric signal when default first frequency converter output electric signal threshold value can be the first frequency converter normal work, if
The electric signal of first motor is higher than output electric signal during the first frequency converter normal work, then the electric energy having more will be stored in
Be not influence the normal work of frequency converter in the dc bus filter capacitor of first frequency converter, can by energy feedback unit,
The energy expenditure having more, such as by energy feedback unit by the energy feedback having more to AC network.
In one embodiment, the differential speed control method of the equipment for pulverizing material is further comprising the steps of：Second is obtained to become
The output electric signal of frequency device, if the output electric signal of the second frequency converter is more than default second frequency converter output electric signal threshold value,
Electric signal in the output electric signal of second frequency converter beyond default second frequency converter output electric signal threshold value is passed through the
Two energy feedback units are fed back to AC network；Wherein, second energy feedback unit is connected with the second frequency converter.
Output electric signal when default second frequency converter output electric signal threshold value can be the second frequency converter normal work, second
Motor there may be power generation process, and the electric energy that the second motor is sent will be stored in the dc bus filter capacitor of frequency converter
In, it is not influence the normal work of the first frequency converter, energy, the energy expenditure having more, can be such as passed through by energy feedback unit
Feedback unit is measured by the energy feedback having more to AC network.
Fig. 3 is a kind of structural representation of the control device of equipment for pulverizing material of the present invention, referring to Fig. 3, this implementation
Mode, the control device of the equipment for pulverizing material, it may include：
Controller, the first frequency converter, the first motor for driving the rotation of the rotary shaft of equipment for pulverizing material first, second become
Frequency device, the second motor for driving the rotary shaft of equipment for pulverizing material second to rotate；First frequency converter and the described first electricity
Machine is connected, second frequency converter and the second motor connection；
The controller is used to obtain the current rotating speed for being used for driving the first motor and working as the second motor of driving
Preceding rotating speed；
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, first is adjusted
The drive signal of the drive signal of frequency converter and the second frequency converter, to increase drive signal and the second frequency conversion of the first frequency converter
The ratio of the drive signal of device；Wherein, the default ratio is more than 1.
Present embodiment, the first motor is used to drive the first rotary shaft of equipment for pulverizing material to rotate, and the second motor is used for
The second rotary shaft rotation of equipment for pulverizing material is driven, the default ratio is more than 1, that is, illustrates default first rotary shaft rotating speed
It is more than the second motor speed more than default second rotary shaft rotating speed or default first motor speed, the first motor connection first becomes
Frequency device, is worked by first the first motor of Frequency Converter Control, second the second frequency converter of motor connection, by the second Frequency Converter Control second
Motor works, and the controller detects the current rotating speed of the first motor and the current rotating speed of the second motor, then calculates first
The ratio between the current rotating speed of motor and the current rotating speed of the second motor, if calculating the current rotating speed and the second motor for obtaining the first motor
The ratio of current rotating speed be less than default ratio, illustrate, may put into after material, current material particles, which become the reason such as greatly, causes the
Frictional force between one rotary shaft, material and the second rotary shaft becomes big, has exceeded the nominal load of motor, then because of the first rotation
The frictional force that rotating shaft is received is in opposite direction with its rotating torque, and the first rotary shaft slows, and the second rotary shaft is by frictional force and its
Rotating torque direction is identical so that the second rotary shaft rotating speed accelerates so that the first rotary shaft present speed and the second rotary shaft are worked as
Preceding speed tends to be close, and speed difference diminishes, then, the controller increases the drive signal and the second frequency converter of the first frequency converter
Drive signal ratio, make frequency converter output signal ratio increase, that is, increase the input signal and second of the first motor
The ratio of the input signal of motor so that the rotating speed of the first motor-driven first rotary shaft and the second motor-driven second rotation
The ratio increase of the rotating speed of rotating shaft, it is poor to reduce the present speed between the first rotary shaft and the second rotary shaft, therefore the material
The device for controlling differential speed of disintegrating apparatus can reduce the shadow to material crushing effect when the speed difference of two rotary shafts changes
Ring.
The controller can be PLC (programmable logic controller (PLC)).
In one embodiment, referring to Fig. 4, the control device of the equipment for pulverizing material, in addition to：
The first energy feedback unit being connected with the first frequency converter, the output electric signal for obtaining the first frequency converter, if
The output electric signal of first frequency converter is more than default first frequency converter and exports electric signal threshold value, then by first frequency converter
Electric signal in output electric signal beyond default first frequency converter output electric signal threshold value is fed back to AC network.
And/or,
The second energy feedback unit being connected with the second frequency converter, the output electric signal for obtaining the second frequency converter, if
The output electric signal of second frequency converter is more than default second frequency converter output electric signal threshold value, then by the defeated of second frequency converter
Go out the electric signal in electric signal beyond default second frequency converter output electric signal threshold value by being fed back to AC network.
The controlling party of the control device of the equipment for pulverizing material of the present invention and the equipment for pulverizing material of the present invention
Method, possesses identical specified features, and the embodiment of the control method of the equipment for pulverizing material is also applied for the present invention's
The control device of the equipment for pulverizing material, is declared hereby, is repeated no more.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply each technical characteristic in example be possible to combination be all described, as long as but the combination of these technical characteristics be not present lance
Shield, all should be the scope that this specification is recorded.
Embodiment described above only expresses several embodiments of the present invention, and it describes more specific and detailed, but not
Therefore the limitation to the scope of the claims of the present invention can be interpreted as.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (10)
1. a kind of control method of equipment for pulverizing material, it is characterised in that comprise the following steps：
Obtain for drive the rotary shaft of equipment for pulverizing material first rotate the first motor current rotating speed and for driving thing
Expect the current rotating speed of the second motor of the rotary shaft of disintegrating apparatus second rotation；
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, adjustment and described the
The drive signal of first frequency converter of one motor connection and the drive signal with the second frequency converter of the second motor connection, to increase
The ratio of the drive signal of big first frequency converter and the drive signal of the second frequency converter；Wherein, the default ratio is more than 1.
2. the control method of equipment for pulverizing material according to claim 1, it is characterised in that adjustment and first motor
Connection the first frequency converter drive signal and the drive signal of the second frequency converter, with increase the first frequency converter drive signal and
The ratio of the drive signal of second frequency converter, comprises the following steps：
Reduce the drive signal of the first frequency converter, and reduce the drive signal of the second frequency converter, to increase the drive of the first frequency converter
The ratio of the drive signal of dynamic signal and the second frequency converter；Wherein, the reduction amplitude of the drive signal of the second frequency converter is higher than the
The reduction amplitude of the drive signal of one frequency converter.
3. the control method of equipment for pulverizing material according to claim 2, it is characterised in that
After the drive signal of the first frequency converter, and the drive signal of the second frequency converter of reduction is reduced, if detecting the first electricity
The ratio of the current rotating speed of machine and the current rotating speed of the second motor is more than default ratio, then increases the driving letter of the first frequency converter
Number, and increase the drive signal of the second frequency converter, believed with reducing the driving of drive signal and the second frequency converter of the first frequency converter
Number ratio；Wherein, increase amplitude of the increase amplitude of the second transducer drive signal higher than the drive signal of the first frequency converter.
4. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that
Default ratio is the ratio of default first rotary shaft rotating speed and default second rotary shaft rotating speed；
Default first rotary shaft rotating speed is first rotary shaft rotating speed of first motor under rated output power, default second
Rotary shaft is second rotary shaft rotating speed of second motor under rated output power.
5. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that obtain working as the second motor
The step of preceding rotating speed, includes：
The current flow of the second motor is obtained, the current rotating speed of the second motor is calculated according to the current flow of the second motor；
Or,
The current rotating speed of the second rotary shaft is obtained, the current rotating speed of the second motor is calculated according to the current rotating speed of the second rotary shaft.
6. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that obtain working as the first motor
The step of preceding rotating speed, includes：
The frequency of the output current signal of the first frequency converter is obtained, working as the first motor is calculated according to the frequency of output current signal
Preceding rotating speed；
Or,
The current rotating speed of the first rotary shaft is obtained, the current rotating speed of the first motor is calculated according to the current rotating speed of the first rotary shaft.
7. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that further comprising the steps of：
The output electric signal of the first frequency converter is obtained, if the output electric signal of the first frequency converter is defeated more than default first frequency converter
Go out electric signal threshold value, then will export electric signal threshold value beyond default first frequency converter in the output electric signal of first frequency converter
Electric signal AC network is fed back to by the first energy feedback unit being connected with the first frequency converter.
8. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that further comprising the steps of：
The output electric signal of the second frequency converter is obtained, if the output electric signal of the second frequency converter is more than default second frequency converter output
Electric signal threshold value, then will export electric signal threshold value in the output electric signal of second frequency converter beyond default second frequency converter
Electric signal is fed back to AC network by the second energy feedback unit being connected with the second frequency converter.
9. the control method of the equipment for pulverizing material according to claim 1-3, it is characterised in that further comprising the steps of：
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is more than default ratio, adjustment and described the
The drive signal of first frequency converter of one motor connection and the drive signal of the second frequency converter, to reduce the driving of the first frequency converter
The ratio of the drive signal of signal and the second frequency converter.
10. a kind of control device of equipment for pulverizing material, it is characterised in that including：
Controller, the first frequency converter, the first motor for driving the rotation of the rotary shaft of equipment for pulverizing material first, the second frequency conversion
Device, the second motor for driving the rotary shaft of equipment for pulverizing material second to rotate；First frequency converter and first motor
Connection, second frequency converter and the second motor connection；
The controller is used to obtain the current rotating speed for being used for driving the first motor and works as forward for the second motor of driving
Speed；
If the ratio of the current rotating speed of the first motor and the current rotating speed of the second motor is less than default ratio, the first frequency conversion is adjusted
The drive signal of the drive signal of device and the second frequency converter, to increase the drive signal and second frequency converter of the first frequency converter
The ratio of drive signal；Wherein, the default ratio is more than 1.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN112138777A (en) * | 2020-09-11 | 2020-12-29 | 泰伯克（天津）机械设备有限公司 | Novel grading crushing equipment driving structure, control system and method |
| CN115350765A (en) * | 2022-09-19 | 2022-11-18 | 安徽马钢矿业资源集团南山矿业有限公司 | Intelligent driving system of high-pressure roller mill |
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| CN101745457A (en) * | 2008-12-12 | 2010-06-23 | 上海建设路桥机械设备有限公司 | Fuzzy control system and control method for gear tooth type crusher |
| CN202860607U (en) * | 2012-07-10 | 2013-04-10 | 南京凯盛国际工程有限公司 | Roller press |
| CN204996485U (en) * | 2015-08-11 | 2016-01-27 | 广州市联冠机械有限公司 | A rubber crusher |
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| CN101745457A (en) * | 2008-12-12 | 2010-06-23 | 上海建设路桥机械设备有限公司 | Fuzzy control system and control method for gear tooth type crusher |
| CN202860607U (en) * | 2012-07-10 | 2013-04-10 | 南京凯盛国际工程有限公司 | Roller press |
| CN204996485U (en) * | 2015-08-11 | 2016-01-27 | 广州市联冠机械有限公司 | A rubber crusher |
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| CN112138777A (en) * | 2020-09-11 | 2020-12-29 | 泰伯克（天津）机械设备有限公司 | Novel grading crushing equipment driving structure, control system and method |
| CN115350765A (en) * | 2022-09-19 | 2022-11-18 | 安徽马钢矿业资源集团南山矿业有限公司 | Intelligent driving system of high-pressure roller mill |
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