CN205693600U - Drawbench control circuit - Google Patents
Drawbench control circuit Download PDFInfo
- Publication number
- CN205693600U CN205693600U CN201620605072.3U CN201620605072U CN205693600U CN 205693600 U CN205693600 U CN 205693600U CN 201620605072 U CN201620605072 U CN 201620605072U CN 205693600 U CN205693600 U CN 205693600U
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- CN
- China
- Prior art keywords
- relay
- port
- power supply
- control circuit
- converter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Electric Propulsion And Braking For Vehicles (AREA)
Abstract
The utility model discloses a kind of drawbench control circuit, aim to provide a kind of band oneself's checks element status the drawbench control circuit indicated, solving relay to break down the problem that can not effectively know, its drip irrigation device is to include vehicle motor, converter and selection circuit；The R of converter, S, T-port are in order to connect three phase network, and U, V, W port is in order to connect vehicle motor；Converter also has function port: frequency rises input port X1, frequency resets input port X2, public port COM；Selection circuit includes the first button SA1, the second button SA2, the first relay and the second relay, the first display lamp, the second display lamp, the first experiment power supply, the second experiment power supply；Duty and the effect of whether fault of indicating relay has been reached by attachment structure.
Description
Technical field
This utility model relates to drawbench and controls technical field, particularly to drawbench control circuit.
Background technology
Drawbench is steel pipe drawbench, the equipment being used in steel pipe's production, and drawbench is to make goods obtain certain sky
Hole rate, and make the equipment of its gas hole defect as far as possible reduced.It is mainly made up of depoling template frame and depoling dolly two parts.Pull out
Core grillage is used for fixed form, facilitates depoling dolly to choose core pipe, and depoling dolly includes that running gear and core pipe rotate
Device, walking dolly is driven by motor, it is therefore desirable to be controlled this.
At present, the controller function on market is various, but the control for motor is the most directly controlled, and passes through
Switch element is driven after making electrical power, carries out power-off by switch with regard to circuit, stops dolly and drives, but sometimes
Waiting, there is fault in switch element, is directly driven easily causing equipment and directly damages, it is therefore desirable to carries out certain protection and arranges
Execute into detection.
Utility model content
The deficiency existed for prior art, the purpose of this utility model is to provide band oneself's checks element status and indicates
Drawbench control circuit.
Above-mentioned technical purpose of the present utility model has the technical scheme that a kind of drawbench controls electricity
Road, including vehicle motor, converter and selection circuit；The R of described converter, S, T-port in order to connect three phase network, U, V, W
Port is in order to connect vehicle motor；Described converter also has function port: frequency rises input port X1, frequency resets input port
X2, public port COM；
Described selection circuit includes the first button SA1, the second button SA2, the first relay and the second relay, the first finger
Show lamp, the second display lamp, the first experiment power supply, the second experiment power supply；
It is connected on mains supply after first relay coil KA1 and the first button SA1 series connection, the first experiment power supply, the
One display lamp, the first relay normally open contact KA1-1 are sequentially connected in series formation loop；
It is connected on mains supply after second relay coil KA2 and the second button SA2 series connection, the second experiment power supply, the
Two display lamps, the second relay normally open contact KA2-1 are sequentially connected in series formation loop.
By such scheme, during using, first can carry out test simulation, close the first button SA1 time
Waiting, the first relay coil KA1 obtains electric, so the first relay normally open contact KA1-1 action Guan Bi, now the first experiment power supply
Current supply circuit connect so that the first display lamp is lighted, such that it is able to judge that the first relay is that function is intact, otherwise,
First display lamp does not works, and the first adaptive polarizing memory voltage time constant fault is described, needs maintenance, prevents the first relay to be linked into converter enterprising
The invalid control of row, improves security performance；In like manner, the second button SA2 presses when, the second display lamp can be led to and judge
Second relay is the most normal, thus ensures that the first relay and the second relay function are normal before the use, Jin Erti
High overall security performance and reliability.
As concrete scheme of the present utility model can be: the two ends of described first relay normally open contact KA1-1 connect
Rise between input port X1 and public port COM in frequency.
By such scheme, carried out the triggering of signal by the first button SA1, the frequency of converter can be selected to rise
Function, such that it is able to control vehicle motor variable frequency starting.
As concrete scheme of the present utility model can be: the two ends of described second relay normally open contact KA2-1 connect
Reset between input port X2 and public port COM in frequency.
By such scheme, carried out the triggering of signal by the second button SA2, the frequency of converter can be selected to reset
Function, stops such that it is able to controlling vehicle motor.
As concrete scheme of the present utility model can be: the power supply of described first experiment power supply and the second experiment power supply is returned
Switching switch also it is in series with on road.
By such scheme, can needs are tested when, by switching switch off the first experiment power supply and
The current supply circuit of the second experiment power supply, such that it is able to the most energy-conservation.
As concrete scheme of the present utility model can be: the R of described converter, S, T-port are also connected the first chopper
QF1。
By such scheme, can be in the case of grid power instability by the first circuit breaker Q F1, such as electrical network goes out
The connection of converter and electrical network can be directly disconnected the when of existing over-current phenomenon avoidance, such that it is able to protection frequency converter equipment.
As concrete scheme of the present utility model can be: on described three phase network, be coupled with current transformer, described electricity
Connect on current transformer and have ammeter.
By such scheme, the electric current of three phase network can be sensed, be entered by ammeter simultaneously by current transformer
Row instruction, such that it is able to the size of current of visual indication people's electrical network, prevents over-current phenomenon avoidance from occurring but not knowing.
In sum, this utility model has the advantages that by the first display lamp and the light on and off of the second display lamp
Situation judges the first relay and the duty of the second relay, it is provided that effectively detect, and prevents the first relay or
Two relays break down and use the most in circuit, can improve the security performance that circuit is overall.
Accompanying drawing explanation
Fig. 1 is the circuit diagram of the present embodiment.
In figure 1, vehicle motor；2, converter；3, selection circuit；31, the first display lamp；32, the second display lamp；33,
One experiment power supply；34, the second experiment power supply；35, switching switch；4, current transformer；5, ammeter.
Detailed description of the invention
Below in conjunction with accompanying drawing, this utility model is described in further detail.
Embodiment: as it is shown in figure 1, a kind of drawbench control circuit, including vehicle motor 1, converter 2 and selection circuit 3；
Converter 2 is existing product, can select the product on market, such as: platform peace T-VERTER N2-SERIES converter 2.Become
Frequently the R of device 2, S, T-port are in order to connect three phase network, and U, V, W port is in order to connect vehicle motor 1；Three phase network is three-phase four
Line, be L1, L2, L3, N tetra-line in the drawings, and converter 2 also has function port: frequency rises input port X1, frequency resets
Input port X2, public port COM；The frequency of converter 2 rises input port X1 and connects with public port COM, it is possible to achieve frequency conversion
Output so that vehicle motor 1 variable frequency starting, frequency resets input port X2 and connects with public port COM, it is possible to achieve clear frequency merit
Can, such that it is able to stop vehicle motor 1.
The two ends of the first relay normally open contact KA1-1 are connected to frequency and rise between input port X1 and public port COM.
The two ends of the second relay normally open contact KA2-1 are connected to frequency and reset between input port X2 and public port COM.By first
Button SA1 carries out the triggering of signal, the frequency of converter 2 can be selected to rise function, become such that it is able to control vehicle motor 1
Frequency starts.Carried out the triggering of signal by the second button SA2, the frequency Protection Counter Functions of converter 2 can be selected, such that it is able to
Control vehicle motor 1 to stop.
Selection circuit 3 includes the first button SA1, the second button SA2, the first relay and the second relay, the first instruction
Lamp the 31, second display lamp the 32, first experiment power supply the 33, second experiment power supply 34；First relay coil KA1 and the first button
It is connected on mains supply after SA1 series connection, first experiment power supply the 33, first display lamp the 31, first relay normally open contact KA1-1
It is sequentially connected in series formation loop；It is connected on mains supply after second relay coil KA2 and the second button SA2 series connection, the second examination
Electrical verification source the 34, second display lamp the 32, second relay normally open contact KA2-1 is sequentially connected in series formation loop.First display lamp 31 He
Second display lamp 32 can be the Holiday lamp of LED or colour.First button SA1, the power supply of the second button SA2 can take to three
A wherein phase in phase electrical network, and connected the second circuit breaker Q F2 at power supply outfan, such that it is able to effectively protection first is pressed
Button SA1, the second button SA2, the first relay and the second relay.Prevented the stream damage to device.
Switching switch 35 also it is in series with on the current supply circuit of the first experiment power supply 33 and the second experiment power supply 34.Can need
The when of test, by switching switch 35 disconnection the first experiment power supply 33 and current supply circuit of the second experiment power supply 34,
Such that it is able to it is the most energy-conservation.
Operation principle: during using, first can carry out test simulation, the when of closing the first button SA1, the
One relay coil KA1 obtains electric, so the first relay normally open contact KA1-1 action Guan Bi, now first experiment power supply 33
Current supply circuit is connected so that the first display lamp 31 is lighted, such that it is able to judge that the first relay is that function is intact, otherwise,
First display lamp 31 does not works, and the first adaptive polarizing memory voltage time constant fault is described, needs maintenance, prevents the first relay to be linked into converter 2
On carry out invalid control, improve security performance；In like manner, the second button SA2 presses when, the second display lamp 32 can be led to and enter
Row judges that the second relay is the most normal, thus ensures that the first relay and the second relay function are normal before the use,
And then improve overall security performance and reliability.
The R of converter 2, S, T-port are also connected the first circuit breaker Q F1.Can be at grid power by the first circuit breaker Q F1
In the case of instability, such as the when that over-current phenomenon avoidance occurring in electrical network, can directly disconnect the connection of converter 2 and electrical network, thus
Converter 2 equipment can be protected.Being coupled with current transformer 4 on three phase network, current transformer 4 connects ammeter 5.Electricity
The electric current of three phase network can be sensed by current transformer 4, is indicated by ammeter 5 simultaneously, such that it is able to intuitively
The size of current of instruction people's electrical network, prevents over-current phenomenon avoidance from occurring but not knowing.
Owing to having the function of converter 2, such that it is able to more energy-conservation, and, speed can be adjusted, right to improve
The speed controlling of dolly, improves product quality.
This specific embodiment is only that it is not to restriction of the present utility model, ability to explanation of the present utility model
The present embodiment can be made after reading this specification by field technique personnel as required does not has the amendment of creative contribution, but
As long as all being protected by Patent Law in right of the present utility model.
Claims (6)
1. a drawbench control circuit, is characterized in that: include vehicle motor, converter and selection circuit；Described converter
R, S, T-port are in order to connect three phase network, and U, V, W port is in order to connect vehicle motor；Described converter also has a function port:
Frequency rises input port X1, frequency resets input port X2, public port COM；
Described selection circuit includes the first button SA1, the second button SA2, the first relay and the second relay, the first instruction
Lamp, the second display lamp, the first experiment power supply, the second experiment power supply；
It is connected on mains supply after first relay coil KA1 and the first button SA1 series connection, the first experiment power supply, the first finger
Show that lamp, the first relay normally open contact KA1-1 are sequentially connected in series formation loop；
It is connected on mains supply after second relay coil KA2 and the second button SA2 series connection, the second experiment power supply, the second finger
Show that lamp, the second relay normally open contact KA2-1 are sequentially connected in series formation loop.
Drawbench control circuit the most according to claim 1, is characterized in that: described first relay normally open contact KA1-1
Two ends be connected to frequency and rise between input port X1 and public port COM.
Drawbench control circuit the most according to claim 2, is characterized in that: described second relay normally open contact KA2-1
Two ends be connected to frequency and reset between input port X2 and public port COM.
Drawbench control circuit the most according to claim 3, is characterized in that: described first experiment power supply and the second test electricity
Switching switch also it is in series with on the current supply circuit in source.
Drawbench control circuit the most according to claim 1, is characterized in that: the R of described converter, S, T-port are also connected
First circuit breaker Q F1.
Drawbench control circuit the most according to claim 1, is characterized in that: be coupled with Current Mutual Inductance on described three phase network
Device, described current transformer connects and has ammeter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605072.3U CN205693600U (en) | 2016-06-15 | 2016-06-15 | Drawbench control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620605072.3U CN205693600U (en) | 2016-06-15 | 2016-06-15 | Drawbench control circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205693600U true CN205693600U (en) | 2016-11-16 |
Family
ID=57415081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620605072.3U Expired - Fee Related CN205693600U (en) | 2016-06-15 | 2016-06-15 | Drawbench control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205693600U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639113A (en) * | 2018-12-24 | 2019-04-16 | 沧州华润热电有限公司 | A kind of control circuit and frequency converter control system of frequency converter |
-
2016
- 2016-06-15 CN CN201620605072.3U patent/CN205693600U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109639113A (en) * | 2018-12-24 | 2019-04-16 | 沧州华润热电有限公司 | A kind of control circuit and frequency converter control system of frequency converter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20161116 Termination date: 20200615 |