CN2664826Y - Dual purpose machine of power generation and electric welding - Google Patents
Dual purpose machine of power generation and electric welding Download PDFInfo
- Publication number
- CN2664826Y CN2664826Y CN 200320124220 CN200320124220U CN2664826Y CN 2664826 Y CN2664826 Y CN 2664826Y CN 200320124220 CN200320124220 CN 200320124220 CN 200320124220 U CN200320124220 U CN 200320124220U CN 2664826 Y CN2664826 Y CN 2664826Y
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- electric welding
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- purpose machine
- welding
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Abstract
The utility model relates to a generator with electric welding function, in particular to a dual-purpose generator of electricity generating and electric welding functions. The generator comprises an excitation winding, a main winding and an electric-welding winding, wherein the excitation winding, via self-produced magnetic fields, connects respectively with the main winding and the electric-welding winding. The utility model is characterized by comprising a commutating circuit, one end of which connects with the electric-welding winding and the other end of which electrically connects with the electric welding output end. The utility model has the advantage in overcoming technical defects and conducting commutated output of signals sensed by the electric-welding winding, so the welding can be carried out with direct-current signals, making the welding more stable and improving the working efficiency. In addition, a reactor is not needed, therefore, the dual-purpose generator of electricity generating and electric welding is reduced in size and thus is easy to carry and convenient to use.
Description
Technical field
The utility model relates to a kind of motor that has electric welding, the dual-purpose machine of particularly a kind of electricity generation and electric welding.
Background technology
The dual-purpose machine of electricity generation and electric welding of the prior art includes Blast Furnace Top Gas Recovery Turbine Unit (TRT) and welding set, Blast Furnace Top Gas Recovery Turbine Unit (TRT) includes excitation winding and main winding, welding set then includes the electric welding winding, the electric welding winding is three phase windings, excitation winding is connected with the electric welding winding with main winding respectively by the magnetic field that himself produces, under the effect of excitation winding, main winding will be exported all signals of telecommunication of time dependent simple alternating current (referring to voltage and current) of a size and Orientation, this is the process of generating electricity, same electric welding winding is also under the effect of excitation winding, its output signal also is a sinusoidal ac signal, and utilizes this AC signal to carry out electric welding work.That is to say that main winding and electric welding winding can be worked together under the effect of same excitation winding, thereby form two kinds of purposes of electricity generation and electric welding.Its weak point is: 1, because the electric welding winding is output as ac signal, the operating current that causes electric welding is also for exchanging, the size and Orientation of this ac signal is time dependent, and carry out electric welding work under the effect of ac signal is very unsettled, so operating efficiency is lower, 2, in order to improve the stability of electric welding, need in the electric welding winding, increase by a reactor and carry out filtering and current limliting, promptly filter the harmonic wave that in output procedure, occurs, with the stable alternating current of being exported, but its output remains simple sinusoidal alternating current, and reactor will reach above purpose, just requires the size of its coil bigger, so the increase of reactor has increased the volume of the dual-purpose machine of electricity generation and electric welding greatly, because this dual-purpose machine is portable, the increase of volume brings great inconvenience to the user undoubtedly.
Invention constitutes
The purpose of this utility model is to overcome weak point of the prior art and a kind of electric welding working stability, dual-purpose machine of electricity generation and electric welding that volume is little of making is provided.
The purpose of this utility model realizes by following approach:
The dual-purpose machine of electricity generation and electric welding, include excitation winding, main winding and electric welding winding, excitation winding is connected with the electric welding winding with main winding respectively by the magnetic field that himself produces, its structural feature is, also include a rectification circuit, this rectification circuit one end is connected with the electric welding winding electric, and the other end then is electrically connected with electric welding work output.
Because the source of the electric welding winding signal in the dual-purpose machine of electricity generation and electric welding is the same with the main winding of generator, promptly the action of a magnetic field by excitation winding produces an AC signal, therefore, those skilled in the art consider from technical standpoint, directly adopt this AC signal to carry out electric welding work, and do not consider rectification circuit possibility of its application the dual-purpose machine of this electricity generation and electric welding from other angles, produced this ubiquitous understanding that departs from objective fact, and inventor of the present utility model has overcome this technology prejudice, solved technical problem, that is: the AC signal that just it can be sensed from excitation winding of electric welding winding is sent into rectification circuit and is carried out rectification, thereby the signal of telecommunication that electric welding winding output circuit is exported is a direct current signal, that is to say, can carry out electric welding work by using direct current signal, thereby carry out stable electric welding work, improve the operating efficiency of electric welding; Be non-AC signal owing to what export in addition, thus do not need reactor is installed again yet, thus reduced the volume of the dual-purpose machine of electricity generation and electric welding, make it more portable, easy to use.
What will set forth here is: the dc signal of strict difinition is meant the signal of telecommunication that size, direction are all constant, just all such signal of telecommunication can not be arranged in actual applications, so present said direct current generally is the notion in the actual techniques field, the fluctuation that is meant signal of telecommunication size is in certain allowed band, the polarity of this signal of telecommunication simultaneously, just direction is unique.The signal of telecommunication as referred to herein is meant voltage or the electric current in the circuit.
The electric welding winding can also further be specially:
The electric welding winding can be single-phase winding, can also be three phase windings.
When the electric welding winding is single-phase winding, the waveform that the signal of telecommunication that its winding is sensed embodies is a sine wave, this moment, corresponding rectification circuit can be a single phase rectifier circuit, as single-phase full-wave rectifer circuit or single-phase half-wave rectifier circuit, single-phase full-wave rectifer circuit can be positive half cycle signal with the negative half-cycle signal rectification of AC signal, export a continuous positive half cycle signal (as shown in Figure 1) then, single-phase half-wave rectifier circuit then is that the negative half-cycle signal of AC signal is eliminated, and exports the positive half cycle signal (as shown in Figure 2) of an interval half period then.The signal of the single-phase full-wave rectifer circuit rectification output signal of comparing single-phase half-wave rectifier circuit rectification output more tends to the direct current signal of strict difinition as can be seen, and is also more continual and steady.
And when the electric welding winding is three phase windings, the waveform that the signal of telecommunication that its winding is sensed embodies just is three sine waves that phase place is different, this moment, used rectification circuit was a rectified three-phase circuit, as three-plase half wave rectifier circuit and three-phase full wave rectifier circuit, three-plase half wave rectifier circuit is that the negative half-cycle signal of AC signal is eliminated, export the envelope waveform signal (as shown in Figure 3) of a positive half cycle then, three-phase full wave rectifier circuit then is that the negative half-cycle signal with AC signal is rectified to positive half cycle, its output be the envelope waveform signals (as shown in Figure 4) of these two positive half cycle waveform stacks.The two is compared, and the big minor swing of the output signal of three-phase full wave rectifier circuit is littler, tends to the direct current signal of strict difinition more, so output is more stable.
Compare single phase rectifier circuit and rectified three-phase circuit, the signal magnitude fluctuation range that rectified three-phase circuit is exported is littler, the direct current signal that tends to strict difinition more, make the signal of telecommunication of output also more stable, therefore electric welding winding of the present utility model preferably adopts three phase windings, and its corresponding rectification circuit is preferably three-phase full wave rectifier circuit.
The utility model can also further be specially:
The cross-sectional area of the coil that the electric welding winding is used is big, and the number of turn is few.
Because the direct current signal that the electric welding winding will be exported is the high electric current of needs low pressure according to job requirement, thus under the certain situation of voltage, reduce the resistance of electric welding winding, with raising current strength, according to:
R ∞ l
∑/ S (l
∑Be loop length, S is that coil section is long-pending)
Above formula explanation, resistance sizes is directly proportional with loop length, is inversely proportional to coil section is long-pending, and therefore the cross-sectional area when the used coil of electric welding winding is big, and the number of turn is few, and just the length of line is short, and the resistance of winding is just little, thereby comes the current strength of high electric welding.
Main winding is by a bridge rectifier and being connected with excitation winding, and this is because when using as generator, and excitation winding can receive the direct current signal that carries out over commutation that main winding exports as field power supply, thus the assurance self power generation.
In sum, advantage of the present utility model is, has overcome technology prejudice, and the signal that the electric welding winding is responded to carries out rectification output, and like this, electric welding work just can adopt direct current signal to carry out, thereby makes the electric welding more stable work, and increases work efficiency; Also no longer need reactor in addition, so just can dwindle the volume of the dual-purpose machine of this electricity generation and electric welding, make it to be more convenient for carrying, the convenient use.
Description of drawings
Figure 1 shows that the input and output oscillogram of single-phase full-wave rectifer circuit;
Figure 2 shows that the input and output oscillogram of single-phase half-wave rectifier circuit;
Figure 3 shows that the input and output oscillogram of three-plase half wave rectifier circuit;
Figure 4 shows that the input and output oscillogram of three-phase full wave rectifier circuit;
Figure 5 shows that the circuit diagram of most preferred embodiment described in the utility model.
Below we are further described the utility model in conjunction with the embodiments.
Specific embodiment
Most preferred embodiment:
Referring to accompanying drawing 5, the dual-purpose machine of electricity generation and electric welding, include main winding 2, electric welding winding 3, three-phase full wave rectifier circuit 5 and excitation winding 1, excitation winding 1 is installed on the rotor, and main winding 2 and electric welding winding 3 are installed on the stator, and the magnetic field that excitation winding 1 produces by himself is rotated and is connected with main winding 2 and 3 inductions of electric welding winding; Electric welding winding 3 coils are bigger than the cross-sectional area of main winding 2 coils, the number of turn is lacked, and the winding of electric welding simultaneously 3 is three phase windings, and three-phase full wave rectifier circuit 5 one ends are electrically connected with electric welding winding 3, and the other end then is connected with the output of electric welding winding 3; And the output of main winding 2 also passes through an automatic voltage regulator AVR and a bridge rectifier 6 and an inductance coil 7 in regular turn and is electrically connected with the power input of excitation winding 1, and automatic voltage regulator AVR is in order to adjusting electric welding electric current and external characteristic thereof; Bridge rectifier 6 then is to be used for the output current of main winding is carried out rectification, supplies with excitation winding 1 then as field power supply.
It is same as the prior art that the utility model is not stated part.
Claims (10)
1, the dual-purpose machine of electricity generation and electric welding, include excitation winding (1), main winding (2) and electric welding winding (3), excitation winding (1) is connected with electric welding winding (3) with main winding (2) respectively by the magnetic field that himself produces, it is characterized in that, also include a rectification circuit (5), these rectification circuit (5) one ends are electrically connected with electric welding winding (3), and the other end then is electrically connected with electric welding work output.
2, the dual-purpose machine of electricity generation and electric welding according to claim 1 is characterized in that, electric welding winding (3) can be single-phase winding, also can be three phase windings.
3, the dual-purpose machine of electricity generation and electric welding according to claim 1 is characterized in that, rectification circuit (5) is a single phase rectifier circuit.
4, the dual-purpose machine of electricity generation and electric welding according to claim 1 is characterized in that, rectification circuit (5) is a rectified three-phase circuit.
5, the dual-purpose machine of electricity generation and electric welding according to claim 3 is characterized in that, rectification circuit (5) is a single-phase half-wave rectifier circuit.
6, the dual-purpose machine of electricity generation and electric welding according to claim 3 is characterized in that, rectification circuit (5) is a single-phase full-wave rectifer circuit.。
7, the dual-purpose machine of electricity generation and electric welding according to claim 4 is characterized in that, rectification circuit (5) is a three-plase half wave rectifier circuit.
8, the dual-purpose machine of electricity generation and electric welding according to claim 4 is characterized in that, rectification circuit (5) is a three-phase full wave rectifier circuit.
9, the dual-purpose machine of electricity generation and electric welding according to claim 1 is characterized in that, the cross-sectional area of the coil that electric welding winding (3) is used is big, and the number of turn is few.
10, the dual-purpose machine of electricity generation and electric welding according to claim 1 is characterized in that, main winding (2) is connected with excitation winding (1) by a bridge rectifier (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320124220 CN2664826Y (en) | 2003-12-30 | 2003-12-30 | Dual purpose machine of power generation and electric welding |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320124220 CN2664826Y (en) | 2003-12-30 | 2003-12-30 | Dual purpose machine of power generation and electric welding |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664826Y true CN2664826Y (en) | 2004-12-22 |
Family
ID=34348954
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320124220 Expired - Fee Related CN2664826Y (en) | 2003-12-30 | 2003-12-30 | Dual purpose machine of power generation and electric welding |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664826Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630886B (en) * | 2009-08-15 | 2011-06-22 | 凯捷利集团有限公司 | Double-stator and double-rotor welding generator |
-
2003
- 2003-12-30 CN CN 200320124220 patent/CN2664826Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101630886B (en) * | 2009-08-15 | 2011-06-22 | 凯捷利集团有限公司 | Double-stator and double-rotor welding generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041222 Termination date: 20101230 |