CN209710091U - A kind of plasma spraying burn-out-proof gun system - Google Patents
A kind of plasma spraying burn-out-proof gun system Download PDFInfo
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- CN209710091U CN209710091U CN201921001462.XU CN201921001462U CN209710091U CN 209710091 U CN209710091 U CN 209710091U CN 201921001462 U CN201921001462 U CN 201921001462U CN 209710091 U CN209710091 U CN 209710091U
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Abstract
The utility model relates to a kind of plasma spraying burn-out-proof gun systems, it may include control cabinet and power cabinet, the control cabinet and the power cabinet separate preset distance, are connected between the plasma power supply in controller and the power cabinet in the control cabinet by fiber optic communication.The utility model separates preset distance by using control cabinet and power cabinet, it is able to suppress the spatial interference of high frequency, and fiber optic communication mode is used between controller and power supply, it is able to suppress high frequency lead and propagates interference, and then the signal for ensuring to transmit between control cabinet and power cabinet will not be mutated because of High-frequency Interference, reduce the risk that plasma gun is burnt.
Description
Technical field
The utility model relates to plasma spraying technologies, more particularly to a kind of plasma spraying burn-out-proof gun system.
Background technique
Plasma spraying is the modified technology of a kind of material surface strengthening and surface, can make matrix surface have it is wear-resisting,
The performances such as anti-corrosion, high temperature oxidation resisting, electrical isolation, heat-insulated, radiation protection, anti-attrition and sealing.Plasma spraying technology is using by straight
Electrically driven (operated) plasma-arc is flowed as heat source, and the materials such as ceramics, alloy, metal are heated to melting or semi-molten state, and
Method to spray to the superficial layer for forming adhesion-tight by pretreated workpiece surface at a high speed.
All plasmas all use high-frequency and high-voltage striking both at home and abroad at present, adopt between control cabinet and the power supply of plasma gun
It is controlled with total simulation amount, as shown in Figure 1, wherein AI is control analog quantity, and AQ is feedback analog amount.In use, it passes through
Often there is the phenomenon that plasma gun is burned out.Plasma gun is a kind of accessory of valuableness, and plasma gun is burned out not only
It influences production to be normally carried out, and considerably increases production cost.In this regard, inventor by using oscillograph in power end and
The AI and AQ at control cabinet end are monitored discovery, when there is ion spray gun and being burned out, the AI and AQ of power end and control cabinet end
Numerical value is inconsistent.By further analyzing, the main reason is that High-frequency Interference, this is because high-frequency and high-voltage striking signal directly with
Power output end is connected by conducting wire, and power supply is connect with control cabinet by conducting wire, generates high frequency when plasma power supply works
When, so that High-frequency Interference is directly acted on control cabinet by Analog control conducting wire, so that control cabinet A/D, D/A signal is dashed forward
Become, directly affects electric power outputting current, voltage, power.For example, control cabinet termination receives the feedback of plasma gun source current
For sign mutation at lower than actual numerical value, control cabinet will assign instruction to power supply, output it electric current and tune up, this results in reality
The rated current that electric current can be more than plasma spraying is exported, so that plasma gun is burned out.In order to reduce High-frequency Interference, invent
People has carried out many-sided test, including is filtered using capacitive filter and added shielding case etc. on high frequency electric source, although this is certain
Reduce the phenomenon that plasma gun is burned out in degree, but result is still unsatisfactory.For this purpose, inventor is by deeply grinding
Study carefully analysis, obtain a kind of preferable solution, thus the application generates.
Summary of the invention
The utility model is intended to provide a kind of plasma spraying burn-out-proof gun system, is easy quilt to solve existing plasma gun
The problem of burning.For this purpose, the specific technical solution that the utility model uses is as follows:
A kind of plasma spraying burn-out-proof gun system, it may include control cabinet and power cabinet, the control cabinet and the power cabinet
Preset distance is separated, is connected between the plasma power supply in controller and the power cabinet in the control cabinet by fiber optic communication
It connects.Preferably, preset distance >=3 meter.
Further, the first photoelectric conversion communication module being electrically connected with the controller is provided in the control cabinet,
The second photoelectric conversion communication module being electrically connected with the plasma power supply is provided in the power cabinet, first photoelectricity turns
It changes between communication module and the second photoelectric conversion communication module and is connected by optical fiber.
Further, the first light-coupled isolation amplifying circuit is additionally provided in the control cabinet, first light-coupled isolation is put
It is electrically connected to greatly between the Setting signal output end of the controller and the first photoelectric conversion communication module；And the electricity
The second light-coupled isolation amplifying circuit is additionally provided in the cabinet of source, it is logical that the light-coupled isolation amplifying circuit is connected to second photoelectric conversion
It interrogates between module and the Setting signal input terminal of the plasma power supply.
Still further, the first light-coupled isolation amplifying circuit and the second light-coupled isolation amplifying circuit are three
Grade light-coupled isolation amplifying circuit.
Further, the first not long-line transmission circuit altogether is additionally provided in the control cabinet, described first is long altogether
Line transmission circuit is connected between the feedback signal input terminal of the controller and the first photoelectric conversion communication module；And institute
It states and is additionally provided with the second not long-line transmission circuit altogether in power cabinet, described second long-line transmission is not electrically connected to described altogether
Between two photoelectric conversion communication modules and the feedback signal output of the plasma power supply.
The utility model by adopting the above technical scheme, has the beneficial effect that the utility model by using control cabinet
Preset distance is separated with power cabinet, is able to suppress the spatial interference of high frequency, and uses optical fiber between controller and power supply
Communication mode is able to suppress high frequency lead and propagates interference, and then the signal for ensuring to transmit between control cabinet and power cabinet will not
It is mutated because of High-frequency Interference, reduces the risk that plasma gun is burnt.
Detailed description of the invention
To further illustrate each embodiment, the utility model is provided with attached drawing.These attached drawings are in the utility model discloses
A part of appearance mainly to illustrate embodiment, and can cooperate the associated description of specification former come the running for explaining embodiment
Reason.Cooperation refers to these contents, and those of ordinary skill in the art will be understood that other possible embodiments and sheet are practical new
The advantages of type.Component in figure is not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Fig. 1 is the power supply control principle drawing of existing plasma gun；
Fig. 2 is the power supply and control cabinet communication control schematic diagram of the plasma gun of the utility model.
Specific embodiment
Now in conjunction with the drawings and specific embodiments, the present invention will be further described.
As shown in Fig. 2, a kind of plasma spraying burn-out-proof gun system may include control cabinet 1 and power cabinet 2.Control cabinet 1 and electricity
Source cabinet 2 separates preset distance, passes through spatial to control to eliminate the High-frequency Interference of the generation of the plasma power supply 21 in power cabinet 2
Cabinet 1 processed, and then interfere the analog or digital signal in control cabinet 1.It was issued according to Federal Communications Commission (FCC) in 1978
No. 20780 files of cloth limit standard to the radio frequency I (one kind that high frequency is radio frequency) of computer, by control cabinet 1 and power cabinet 2
The distance between be spaced apart 3 meters or more, the influence of the High-frequency Interference by spatial can be greatly lowered.In control cabinet 1
Controller 11 and power cabinet 2 in plasma power supply 21 between communicated to connect by optical fiber 3.Specifically, it is arranged in control cabinet 1
There is the first photoelectric conversion communication module 12 being electrically connected with controller 11, is provided in power cabinet 2 and is electrically connected with plasma power supply 21
The the second photoelectric conversion communication module 22 connect, between the first photoelectric conversion communication module 12 and the second photoelectric conversion communication module 22
It is connected by optical fiber 3.That is, control cabinet 1 and power cabinet 2 are communicated by the first photoelectric conversion communication module 12 and the second photoelectric conversion
Module 22 realizes Phototube Coupling.Therefore, the signal transmission between control cabinet 1 and power cabinet 2 not will receive plasma power supply generation
High-frequency Interference, it is ensured that control signal and feedback signal are correct, and then reduce the risk that is burned out of plasma gun.Even if power supply
There is High-frequency Interference and generate mutation, since optical fiber will not be interfered, the electric current of power supply is can be monitored in real time in controller
With the mutation of power, communication instruction is sent by the conversion of pre-set programs in time and is cut off the power, is further reduced the wind for burning rifle
Danger.
With continued reference to Fig. 2, the first light-coupled isolation amplifying circuit 13 is additionally provided in control cabinet 1, first light-coupled isolation is put
Big circuit 13 is connected between the Setting signal output end of controller 11 and the first photoelectric conversion communication module 12；And power cabinet
The second light-coupled isolation amplifying circuit 23 is additionally provided in 2, the light-coupled isolation amplifying circuit 23 is connected to two photoelectric conversions communication mould
Between block 22 and the Setting signal input terminal of plasma power supply 21.Therefore, the Setting signal that controller 11 exports passes through the first light
Coupling isolating amplifier circuit 13 is converted into optical signal by the first photoelectric conversion communication module 12 again after amplifying；And the second photoelectric conversion
Module 22 will change into electric signal from the received optical signal of the first photoelectric conversion communication module 12, then be amplified by the second light-coupled isolation
Control plasma power supply 21 executes Setting signal after circuit 23 amplifies.By the way that the first light-coupled isolation amplifying circuit 13 and second is arranged
Light-coupled isolation amplifying circuit 23, the High-frequency Interference that can be generated in amplification process by plasma power supply to avoid Setting signal, really
Protect the authenticity of Setting signal.
Preferably, the first light-coupled isolation amplifying circuit 13 and the second light-coupled isolation amplifying circuit 23 are three-level light-coupled isolation
Amplifying circuit.Its physical circuit is as shown in Fig. 2, be not further described herein.
In addition, can also be equipped with the first not long-line transmission circuit 14 altogether in control cabinet 1, the described first not long-line transmission altogether
Circuit 14 is connected between the feedback signal input terminal of controller 11 and the first photoelectric conversion communication module 12；And in power cabinet 2
It is additionally provided with the second not long-line transmission circuit 24 altogether, described second long-line transmission circuit 24 is not connected to the second photoelectric conversion altogether
Between communication module 22 and the feedback signal output of plasma power supply 21.Therefore, the feedback signal of plasma power supply 21 passes through
Second not altogether 24 electromagnetic coupling of long-line transmission circuit merge amplification after feedback output give the second fiber optic switching module 22, the second optical fiber
Conversion module 22 converts electrical signals into optical signal and sends the first fiber optic switching module 12, the first fiber optic switching module 12 and handle to
Optical signal is converted into electric signal, and by first, 14 electromagnetic coupling of long-line transmission circuit does not merge amplification to the electric signal after converting altogether
After feed back to controller 11.By setting first not long-line transmission circuit 14 and the second not long-line transmission circuit 24 altogether altogether,
Can to avoid feedback signal transmission amplification process in by plasma power supply generate High-frequency Interference, it is ensured that feedback signal it is true
Property.First not altogether long-line transmission circuit 14 and second not altogether long-line transmission circuit 24 be all made of it is transformer coupled, it is specific
Circuit is as shown in Fig. 2, be not further described herein.
Although specifically showing and describing the utility model in conjunction with preferred embodiment, those skilled in the art is answered
This is understood, in the spirit and scope for not departing from the utility model defined by the appended claims, in form and details
On the utility model can be made a variety of changes, be the protection scope of the utility model.
Claims (5)
1. a kind of plasma spraying burn-out-proof gun system, which is characterized in that the plasma spraying burn-out-proof gun system includes control cabinet
With power cabinet, the control cabinet and the power cabinet separate preset distance, and the controller in the control cabinet and the electricity
It is connected between plasma power supply in the cabinet of source by fiber optic communication.
2. plasma spraying burn-out-proof gun system as described in claim 1, which is characterized in that be provided in the control cabinet and institute
The first photoelectric conversion communication module of controller electrical connection is stated, is provided in the power cabinet and is electrically connected with the plasma power supply
The second photoelectric conversion communication module, between the first photoelectric conversion communication module and the second photoelectric conversion communication module
It is connected by optical fiber.
3. plasma spraying burn-out-proof gun system as claimed in claim 2, which is characterized in that be additionally provided with first in the control cabinet
Light-coupled isolation amplifying circuit, the first light-coupled isolation amplifying circuit are connected to Setting signal output end and the institute of the controller
It states between the first photoelectric conversion communication module；And the second light-coupled isolation amplifying circuit, the optocoupler are additionally provided in the power cabinet
Isolating amplifier circuit be connected to the second photoelectric conversion communication module and the plasma power supply Setting signal input terminal it
Between.
4. plasma spraying burn-out-proof gun system as claimed in claim 3, which is characterized in that the first light-coupled isolation amplification electricity
Road and the second light-coupled isolation amplifying circuit are three-level light-coupled isolation amplifying circuit.
5. plasma spraying burn-out-proof gun system as claimed in claim 2, which is characterized in that be additionally provided with first in the control cabinet
Not long-line transmission circuit altogether, described first long-line transmission is not electrically connected to the feedback signal input terminal of the controller altogether
Between the first photoelectric conversion communication module；And the second not long-line transmission circuit altogether, institute are additionally provided in the power cabinet
Stating second, long-line transmission is not electrically connected to the feedback of the second photoelectric conversion communication module and the plasma power supply altogether
Between signal output end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001462.XU CN209710091U (en) | 2019-06-28 | 2019-06-28 | A kind of plasma spraying burn-out-proof gun system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921001462.XU CN209710091U (en) | 2019-06-28 | 2019-06-28 | A kind of plasma spraying burn-out-proof gun system |
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| Publication Number | Publication Date |
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| CN209710091U true CN209710091U (en) | 2019-11-29 |
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| CN201921001462.XU Active CN209710091U (en) | 2019-06-28 | 2019-06-28 | A kind of plasma spraying burn-out-proof gun system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166131A (en) * | 2019-06-28 | 2019-08-23 | 厦门佰顺兴自动化科技有限公司 | A kind of plasma spraying burn-out-proof rifle method and system |
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2019
- 2019-06-28 CN CN201921001462.XU patent/CN209710091U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110166131A (en) * | 2019-06-28 | 2019-08-23 | 厦门佰顺兴自动化科技有限公司 | A kind of plasma spraying burn-out-proof rifle method and system |
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