CN208461719U - A kind of servo control circuit - Google Patents
A kind of servo control circuit Download PDFInfo
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- CN208461719U CN208461719U CN201821317085.6U CN201821317085U CN208461719U CN 208461719 U CN208461719 U CN 208461719U CN 201821317085 U CN201821317085 U CN 201821317085U CN 208461719 U CN208461719 U CN 208461719U
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- servo motor
- control circuit
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Abstract
The utility model embodiment provides a kind of servo control circuit, the servo control circuit control multipath servo motor work；The servo control circuit includes multiple resistor groups, each resistor group resistance value having the same, and the resistor group is electrically connected with servo motor one-to-one correspondence；The quantity for the resistor in the resistor group being electrically connected with the highest servo motor of operating power is most.The utility model embodiment provides a kind of servo control circuit, to realize the job stability for improving servo motor, reduces servo motor and shuts down, saves material and increase finished product yield.
Description
Technical field
The utility model embodiment is related to servo motor technology more particularly to a kind of servo control circuit.
Background technique
It is well known that servo motor refers to the engine that mechanical organ operating is controlled in servo-system, it is a kind of subsidy
The indirect speed change gear of motor can make to control speed, and position precision is very accurate, can convert torque and revolving speed for voltage signal
With drive control object, rotor speed is controlled by input signal, and energy fast reaction, makees to execute member in automatic control system
Part, and have that electromechanical time constant is small, the linearity is high, generates electromagnetic interference, requires to environment, thus it can be used for at
The general industry of this sensitivity and civilian occasion.
Servo motor is often controlled by servo control circuit, and servo control circuit includes multiple resistor groups, resistance
Device group is electrically connected with servo motor one-to-one correspondence.In real use process, different servo motors is often with different power works
Make, it is serious with the corresponding resistor group fever of servo motor that higher-wattage works, it is easy to cause overtemperature system alarm failure simultaneously
It forces servo motor to be shut down, causes material waste, finished product yield reduces.This problems demand solves.
Utility model content
The utility model embodiment provides a kind of servo control circuit, to realize the job stability for improving servo motor,
It reduces servo motor to shut down, save material and increases finished product yield.
The utility model embodiment provides a kind of servo control circuit, and the servo control circuit controls multipath servo motor
Work；The servo control circuit includes multiple resistor groups, each resistor group resistance value having the same, the resistance
Device group is electrically connected with servo motor one-to-one correspondence；
The quantity for the resistor in the resistor group being electrically connected with the highest servo motor of operating power is most.
Optionally, the multiple resistor group includes first resistor device group, second resistor group and 3rd resistor device group；
The first resistor device group is electrically connected with the servo motor of driving upper roller work, the second resistor group and driving
The servo motor electrical connection of central roll work, the 3rd resistor device group are electrically connected with the servo motor of driving lower roll work；
The revolving speed of the central roll is greater than the revolving speed of the upper roller and the lower roll；Electricity described in the second resistor group
The quantity for hindering device is greater than the quantity of resistor described in the first resistor device group, resistor described in the second resistor group
Quantity be greater than the 3rd resistor device group described in resistor quantity.
Optionally, the first resistor device group includes a resistor, and the 3rd resistor device group includes an institute
Resistor is stated, the second resistor group includes multiple resistors.
Optionally, the second resistor group includes first resistor device and second resistor, the first resistor device and institute
State second resistor series connection；
The resistance value of the first resistor device is equal to the resistance value of the second resistor.
Optionally, the second resistor group includes first resistor device and second resistor, the first resistor device and institute
State second resistor parallel connection；
The resistance value of the first resistor device is equal to the resistance value of the second resistor.
Optionally, the second resistor group includes first resistor device, second resistor and 3rd resistor device；
The first resistor device is connected with the second resistor；The first resistor device and the second resistor are equal
It is in parallel with the 3rd resistor device；
The resistance value of the first resistor device is equal to the resistance value of the second resistor, the resistance of the first resistor device
Value is the half of the 3rd resistor device resistance value.
Optionally, the second resistor group includes first resistor device, second resistor, 3rd resistor device and the 4th resistance
Device；
The first resistor device is connected with the second resistor；The 3rd resistor device and the 4th resistor string
Connection；
The first resistor device and the second resistor and the 3rd resistor device and the 4th resistor are simultaneously
Connection；
The first resistor device, the second resistor, the 3rd resistor device have identical with the 4th resistor
Resistance value.
Optionally, the operating power of the servo motor is higher, resistor in the resistor group being electrically connected
Quantity is more.
In the utility model embodiment, servo control circuit includes multiple resistor groups, and each resistor group includes at least
One resistor, multiple resistors can using series, parallel or it is series-parallel by the way of form resistor group, each resistor
Group is electrically connected with a servo motor, and the fever of the corresponding resistor group of the higher servo motor of operating power is more serious, and work function
The fever most serious of the corresponding resistor group of the highest servo motor of rate, is easy to cause overtemperature system alarm failure and forces servo
Motor stopping.And increase the quantity of capacitor in capacitor group, bigger heat dissipation area can be provided, to enhance capacitor group
Heat-sinking capability.The utility model embodiment is by being correspondingly arranged the most resistance of quantity for the highest servo motor of operating power
Device alleviates the heat aggregation for the resistor group being electrically connected with the highest servo motor of operating power, improves servo motor
Job stability reduces the shutdown probability of servo motor, saves material and increases finished product yield.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of servo control circuit provided by the embodiment of the utility model；
Fig. 2 is the structural schematic diagram of another servo control circuit provided by the embodiment of the utility model；
Fig. 3 is the structural schematic diagram of another servo control circuit provided by the embodiment of the utility model；
Fig. 4 is a kind of structural schematic diagram of second resistor group shown in Fig. 3；
Fig. 5 is another structural schematic diagram of second resistor group shown in Fig. 3；
Fig. 6 is another structural schematic diagram of second resistor group shown in Fig. 3；
Fig. 7 is another structural schematic diagram of second resistor group shown in Fig. 3.
Specific embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.It is understood that herein
Described specific embodiment is used only for explaining the utility model, rather than the restriction to the utility model.It further needs exist for
It is bright, part relevant to the utility model is illustrated only for ease of description, in attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of servo control circuit provided by the embodiment of the utility model, with reference to Fig. 1, servo
Control circuit 100 controls the work of multipath servo motor.Servo control circuit 100 includes multiple resistor groups, each resistor group tool
There is identical resistance value, resistor group is electrically connected with servo motor one-to-one correspondence.It is electrically connected with the highest servo motor of operating power
The quantity of the resistor in resistor group connect is most.One or more resistors, resistor group can be set in resistor group
Have the function of adjusting the size of current for the servo motor being electrically connected and radiate for servo control circuit.Illustratively,
Servo control circuit in Fig. 1 includes two resistor groups, respectively first resistor device group 11 and second resistor group 12, and first
Resistor group 11 is electrically connected with first servo motor 21, and second resistor group 12 is electrically connected with the second servo motor 22.First watches
Operating power of the operating power less than the second servo motor 22 of motor 21 is taken, first resistor device group 11 includes a resistor
30, second resistor group 12 includes two resistors 30.
Optionally, resistor can be used as a kind of current detection means.In three-phase servo motor control system, control
Device needs the size for knowing actual current in winding promptly and accurately, to realize the design of current control and current protecting circuit,
Current signal feed circuit is added in main circuit thus.Current sample must be real-time, accurately and reliably.Current detection module is exactly
The threephase stator electric current of AC induction motor is converted into corresponding binary code, to facilitate processing.Usual current detecting
There are two types of methods: sampling resistor and current sensor.Due to current detecting needs to be isolated, the detection side of current sensor
Method higher cost.The method of another kind measurement phase current is measured using simple, cheap resistor, sampling resistor
Voltage signal directly can be converted by the current signal of main circuit and give control circuit, simply, conveniently and frequency response
Good, output voltage is directly proportional to the electric current that main circuit flows through.
In the utility model embodiment, servo control circuit includes multiple resistor groups, and each resistor group includes at least
One resistor, multiple resistors can using series, parallel or it is series-parallel by the way of form resistor group, each resistor
Group is electrically connected with a servo motor, and the fever of the corresponding resistor group of the higher servo motor of operating power is more serious, and work function
The fever most serious of the corresponding resistor group of the highest servo motor of rate, is easy to cause overtemperature system alarm failure and forces servo
Motor stopping.And increase the quantity of capacitor in capacitor group, bigger heat dissipation area can be provided, to enhance capacitor group
Heat-sinking capability.The utility model embodiment is by being correspondingly arranged the most resistance of quantity for the highest servo motor of operating power
Device alleviates the heat aggregation for the resistor group being electrically connected with the highest servo motor of operating power, improves servo motor
Job stability reduces the shutdown probability of servo motor, saves material and increases finished product yield.
Fig. 2 is the structural schematic diagram of another servo control circuit provided by the embodiment of the utility model, more with reference to Fig. 2
A resistor group includes first resistor device group 11, second resistor group 12 and 3rd resistor device group 13.First resistor device group 11 with
The servo motor (in particular first servo motor 21) for driving upper roller 41 to work is electrically connected, in second resistor group 12 and driving
Servo motor (in particular the second servo motor 22) electrical connection that roller 42 works, 3rd resistor device group 13 and driving 43 work of lower roll
The servo motor (in particular third servo motor 23) of work is electrically connected.Upper roller 41, central roll 42 and lower roll 43 for example can be used for
Plastic film is wound, central roll 42 can be between upper roller 41 and lower roll 43, and central roll 42 can also be with upper roller 41 and central roll 43
It contacts and generates certain frictional force.Due to the demand of technique, the revolving speed of central roll 42 is greater than the revolving speed of upper roller 41 and lower roll 43,
The operating power of the second servo motor 22 of central roll 42 is driven to be greater than the operating power of the first servo motor 21 of driving upper roller 41,
The operating power of the second servo motor 22 of central roll 42 is driven to be greater than the operating power of the third servo motor 23 of driving lower roll 43.
The quantity of resistor 30 is greater than the quantity of resistor 30 in first resistor device group 11, second resistor group in second resistor group 12
The quantity of resistor 30 is greater than the quantity of resistor 30 in 3rd resistor device group 13 in 12.
Optionally, with reference to Fig. 1 and Fig. 2, the operating power of servo motor is higher, resistance in the resistor group being electrically connected
The quantity of device is more.Illustratively, with reference to Fig. 2, the revolving speed of central roll 42 is greater than the revolving speed of lower roll 43, and the revolving speed of lower roll 43 is greater than upper
The revolving speed of roller 41.The operating power of the second servo motor 22 of central roll 42 is driven to be greater than the third servo motor 23 of driving lower roll 43
Operating power, drive lower roll 43 third servo motor 23 operating power be greater than driving upper roller 41 first servo motor 21
Operating power.First resistor device group 11 includes a resistor 30, and second resistor group 12 includes three resistors 30, third
Resistor group 13 includes two resistors 30.The quantity of resistor 30 is greater than in 3rd resistor device group 13 in second resistor group 12
The quantity of resistor 30, the quantity of resistor 30 is greater than the number of resistor 30 in first resistor device group 11 in 3rd resistor device group 13
Amount.In the utility model embodiment, only the highest servo motor of operating power is not correspondingly arranged the most resistor of quantity, and
And it also is correspondingly arranged a fairly large number of resistor for the higher servo motor of operating power, it is the lower servo motor of operating power
It is correspondingly arranged the resistor of negligible amounts, all resistor groups has been taken into account, has improved the job stability of servo motor.
Fig. 3 is the structural schematic diagram of another servo control circuit provided by the embodiment of the utility model, with reference to Fig. 3, the
One resistor group 11 includes a resistor 30, and 3rd resistor device group 13 includes a resistor 30, and second resistor group 12 is wrapped
Include multiple resistors 30.It should be noted that be not shown in Fig. 3 in second resistor group 12 quantity of multiple resistors 30 and
The series-parallel relationship of multiple resistors 30, the other embodiments of the utility model will provide some optional implementations.
Fig. 4 is a kind of structural schematic diagram of second resistor group shown in Fig. 3, with reference to Fig. 3 and Fig. 4, second resistor group
12 include first resistor device 31 and second resistor 32.That is, second resistor group 12 includes two resistors 30, respectively
For first resistor device 31 and second resistor 32.First resistor device 31 is connected with second resistor 32, the electricity of first resistor device 31
Resistance value is equal to the resistance value of second resistor 32.The resistance value of first resistor device 31 is resistor 30 in first resistor device group 11
The half of resistance value.
Fig. 5 is another structural schematic diagram of second resistor group shown in Fig. 3, with reference to Fig. 3 and Fig. 5, second resistor
Group 12 includes first resistor device 31 and second resistor 32, and first resistor device 31 is in parallel with second resistor 32, first resistor device
31 resistance value is equal to the resistance value of second resistor 32.The resistance value of first resistor device 31 is electricity in first resistor device device group 11
Twice for hindering the resistance value of device 30.
Fig. 6 is another structural schematic diagram of second resistor group shown in Fig. 3, with reference to Fig. 3 and Fig. 6, second resistor
Group 12 includes first resistor device 31, second resistor 32 and 3rd resistor device 33.First resistor device 31 and second resistor 32 are gone here and there
Connection, first resistor device 31 and second resistor 32 are in parallel with 3rd resistor device 33.That is, the of first resistor device 31
One end is electrically connected with the first end of 3rd resistor device 33, the second end of first resistor device 31 and the first end electricity of second resistor 32
Connection, the second end of second resistor 32 are electrically connected with the second end of 3rd resistor device 33.The resistance value etc. of first resistor device 31
In the resistance value of second resistor 32, the resistance value of first resistor device 31 is the half of 33 resistance value of 3rd resistor device.First electricity
The resistance value for hindering device 31 is equal to the resistance value of resistor 30 in first resistor device device group 11.
Fig. 7 is another structural schematic diagram of second resistor group shown in Fig. 3, with reference to Fig. 3 and Fig. 7, second resistor
Group 12 includes first resistor device 31, second resistor 32,3rd resistor device 33 and the 4th resistor 34.First resistor device 31 and
The series connection of two resistors 32,3rd resistor device 33 connects with the 4th resistor 34, first resistor device 31 and second resistor 32 and
3rd resistor device 33 and the 4th resistor 34 are in parallel.That is, the first end of first resistor device 31 and 3rd resistor device 33
First end electrical connection, the second end of first resistor device 31 is electrically connected with the first end of second resistor 32, second resistor 32
Second end be electrically connected with the second end of the 4th resistor 34, the first of the second end of 3rd resistor device 33 and the 4th resistor 34
End electrical connection.First resistor device 31, second resistor 32,3rd resistor device 33 and the resistance having the same of the 4th resistor 34
Value.The resistance value of first resistor device 31 is equal to the resistance value of resistor 30 in first resistor device device group 11.
Note that above are only the preferred embodiment and institute's application technology principle of the utility model.Those skilled in the art's meeting
Understand, the utility model is not limited to specific embodiment described here, is able to carry out for a person skilled in the art various bright
Aobvious variation is readjusted, be combined with each other and is substituted without departing from the protection scope of the utility model.Therefore, although passing through
Above embodiments are described in further detail the utility model, but the utility model is not limited only to the above implementation
Example can also include more other equivalent embodiments in the case where not departing from the utility model design, and the utility model
Range is determined by the scope of the appended claims.
Claims (8)
1. a kind of servo control circuit, which is characterized in that the servo control circuit control multipath servo motor work；It is described to watch
Taking control circuit includes multiple resistor groups, each resistor group resistance value having the same, the resistor group with it is described
Servo motor corresponds electrical connection；
The quantity for the resistor in the resistor group being electrically connected with the highest servo motor of operating power is most.
2. servo control circuit according to claim 1, which is characterized in that the multiple resistor group includes first resistor
Device group, second resistor group and 3rd resistor device group；
The first resistor device group is electrically connected with the servo motor of driving upper roller work, the second resistor group and driving central roll
The servo motor of work is electrically connected, and the 3rd resistor device group is electrically connected with the servo motor of driving lower roll work；
The revolving speed of the central roll is greater than the revolving speed of the upper roller and the lower roll；Resistor described in the second resistor group
Quantity be greater than the first resistor device group described in resistor quantity, the number of resistor described in the second resistor group
Amount is greater than the quantity of resistor described in the 3rd resistor device group.
3. servo control circuit according to claim 2, which is characterized in that the first resistor device group includes described in one
Resistor, the 3rd resistor device group include a resistor, and the second resistor group includes multiple resistors.
4. servo control circuit according to claim 3, which is characterized in that the second resistor group includes first resistor
Device and second resistor, the first resistor device are connected with the second resistor；
The resistance value of the first resistor device is equal to the resistance value of the second resistor.
5. servo control circuit according to claim 3, which is characterized in that the second resistor group includes first resistor
Device and second resistor, the first resistor device are in parallel with the second resistor；
The resistance value of the first resistor device is equal to the resistance value of the second resistor.
6. servo control circuit according to claim 3, which is characterized in that the second resistor group includes first resistor
Device, second resistor and 3rd resistor device；
The first resistor device is connected with the second resistor；The first resistor device and the second resistor are and institute
It is in parallel to state 3rd resistor device；
The resistance value of the first resistor device is equal to the resistance value of the second resistor, and the resistance value of the first resistor device is
The half of the 3rd resistor device resistance value.
7. servo control circuit according to claim 3, which is characterized in that the second resistor group includes first resistor
Device, second resistor, 3rd resistor device and the 4th resistor；
The first resistor device is connected with the second resistor；The 3rd resistor device and the 4th resistor in series；
The first resistor device and the second resistor and the 3rd resistor device and the 4th capacitor in parallel；
The first resistor device, the second resistor, the 3rd resistor device and the 4th resistor electricity having the same
Resistance value.
8. servo control circuit according to claim 1, which is characterized in that the operating power of the servo motor is higher,
The quantity of resistor is more in the resistor group being electrically connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317085.6U CN208461719U (en) | 2018-08-15 | 2018-08-15 | A kind of servo control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821317085.6U CN208461719U (en) | 2018-08-15 | 2018-08-15 | A kind of servo control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208461719U true CN208461719U (en) | 2019-02-01 |
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ID=65178206
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821317085.6U Active CN208461719U (en) | 2018-08-15 | 2018-08-15 | A kind of servo control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208461719U (en) |
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2018
- 2018-08-15 CN CN201821317085.6U patent/CN208461719U/en active Active
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