CN2446713Y - D.C arc-welding generator - Google Patents
D.C arc-welding generator Download PDFInfo
- Publication number
- CN2446713Y CN2446713Y CN 00223379 CN00223379U CN2446713Y CN 2446713 Y CN2446713 Y CN 2446713Y CN 00223379 CN00223379 CN 00223379 CN 00223379 U CN00223379 U CN 00223379U CN 2446713 Y CN2446713 Y CN 2446713Y
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- Prior art keywords
- winding
- direct current
- arc welding
- arc
- capacitor
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- Synchronous Machinery (AREA)
Abstract
The utility model discloses a DC arc-welding generator, which comprises a stator iron, a welding winding, an exciting winding, an auxiliary power supply winding, a rotor core, a crankshaft, a machine base, and a fan housing, wherein, the welding winding is positioned on the stator iron. The utility model also comprises an arc striking winding, and an intermediate frequency arc striking device, wherein, the arc striking winding is positioned on the stator iron; the intermediate frequency arc striking device is connected with the arc striking winding. A rectificate bridge D< 1 > is connected with a capacitor C < 1 > by a resistor R < 1 >, the capacitor C < 1 > is connected with a regulator tube DW, an intermediate frequency step-up transformer T < 1 >, and a triode thyristor SCR; the intermediate frequency step-up transformer T< 1 > is connected with a high frequency coupling transformer T< 2 > which is connected with a capacitor C< 3 > and a spark discharger FD. The utility model has the advantages of compact structure light weight, continuous arc welding, low temperature rise, and reliable arc striking.
Description
The utility model relates to a kind of direct current arc welding generator, relates in particular to the direct current arc welding generator of frequency striking arc device in a kind of band.
Problems such as that like product of the prior art exists is bulky, complex structure, striking difficulty, project organization is unreasonable, welding current is unstable, the current interruption especially easily of little electric current, body temperature height.
Chinese patent 96232985 disclosed " brushless direct current arc welding generator " and 97237832 disclosed " brushless excitation direct current arc welding generators ".The former adopts hollow light-duty rotor, magnet exciting coil and its separated structures, eliminated brush and collector ring, had that rotor rotates that inertia is little, good dynamic balance is proofreaied and correct, mechanical shock suppresses, eliminated fault rootstocks such as brush, the ablation of collector ring spark, broken string well.The latter adopts and exchanges the brushless excitation system that the intermediate frequency adjuster is formed, and has cancelled brush and slip ring, adopts the non-brushing excitation, has reduced the failure rate of direct current arc welding generator, has improved the stability of work.Though the two respectively has its advantage, all unresolved generator striking difficulty, the little electric current of chance be the shortcoming of current interruption especially easily.
The purpose of this utility model is to overcome above-mentioned prior art deficiency, provides that a kind of compact conformation, volume are little, in light weight, long service life, the arc-welding temperature rise is low, striking is reliable, welding current is stable continuously direct current arc welding generator.
For achieving the above object, the direct current arc welding generator of the utility model employing comprises welding winding, excitation winding, accessory power supply winding, rotor core, arbor, support and the fan housing on stator core, the stator core.It also comprises striking winding on the stator core and the middle frequency striking arc device that is attached thereto.The frequency striking arc device is made up of medium-frequency pulse generator and high-frequency coupling transformer two parts in described, and its circuit is connected to: rectifier bridge D
1Pass through resistance R
1With capacitor C
1Link to each other capacitor C
1Connect voltage-stabiliser tube DW and intermediate frequency step-up transformer T
1And thyristor SCR, intermediate frequency step-up transformer T
1Connect high-frequency coupling transformer T
2, T
2Connect capacitor C
3With spark discharger FD.
The cylindrical of described stator core and inboard wall of base adjacent add ventilation slot.
Described generator is coaxial the connection with engine, and its junction adds mat insulation.
Support arc end relative with ventilation slot on the described generator has venthole.
Add filter screen in the fan housing of described generator rear end.
Described stator core has the folded riveting of ring-shaped silicon steel sheet of 48 line embedding grooves to form by interior round upper punch, and described rotor core is formed by the round pole engagement that evenly is provided with 8 ratchets on two cylindricals.
Adopt the direct current arc welding generator of this structure compared with prior art to have following advantage:
1. because the middle frequency striking arc device that is embedded with the striking winding and is attached thereto on the stator core, and this striking device is compared with conventional striking device, because of its intermediate frequency stepup transformer that adopts replaces duplex frequency boostering transformer, thereby make the striking utensil that little, the in light weight and striking reliable characteristics of volume be arranged.
2. add ventilation slot because of stator core cylindrical and inboard wall of base adjacent, thereby change the thermal diffusivity of motor into two air duct radiations, add mat insulation because of engine and generator junction again, reduced heat conduction, and the support arc end relative with ventilation slot has venthole, reduced the thermal radiation of engine.Thereby make arc generator have the lower advantage of continuous arc-welding temperature rise.
3. in the fan housing of generator rear end, add filter screen, make coolant maintenance cleaning in the machine, thereby prolong the useful life of complete machine.
Below in conjunction with accompanying drawing the utility model is elaborated.
Fig. 1 is this direct current arc welding generator structural representation.
Fig. 2 is this direct current arc welding generator circuit diagram.
Fig. 3 is this direct current arc welding generator internal intermediate frequency striking device circuit theory diagrams.
See Fig. 1, the utility model direct current arc welding generator is formed generator unit stator by stator core 1, welding winding 2, excitation winding 3, striking winding 4, accessory power supply winding 5; Form generator amature by rotor core 6 and centralized excitation winding 7.Stator core has the folded riveting of ring-shaped silicon steel sheet of 48 grooves to constitute by interior ring upper punch, and rotor core is formed by the round pole engagement that evenly is provided with 8 ratchets on two cylindricals.This arc generator also comprises ventilation slot 22, venthole 23, mat insulation 24, arbor 8, support 9, fan 10, collector ring 11, fan housing 12, filter screen 13, this generator is coaxial the connection with engine, stator core is contained in the support, and support is installed on the end face of engine and integral body of its formation.
See Fig. 2, the circuit of this direct current arc welding generator is formed and is comprised welding winding 2, excitation winding 3, striking winding 4, accessory power supply winding 5, centralized excitation winding 7, middle frequency striking arc device 14, argon arc welding control circuit 15, auxiliary winding rectifier 16, three-phase commutation bridge 17, variable resistor 18, electrochemical capacitor 19, resistance 20, electric capacity 21.
See Fig. 3, the middle frequency striking arc device of this direct current arc welding generator is made up of medium-frequency pulse generator and high-frequency coupling transformer two parts.The major function of medium-frequency pulse generator is the 400H with generator self
2Supply voltage is transformed into LMH
2Pulse voltage about 2500-3000V.Rectifier bridge D
1The direct voltage of output passes through resistance R
1To capacitor C
1Charging, when charging voltage reached the puncture voltage of voltage-stabiliser tube DW, so the rapid conducting of thyristor SCR was C
1Will with intermediate frequency step-up transformer T
1Former limit inductance L
1Electromagnetic viscosimeter takes place, and forms a complete medium-frequency pulse voltage, through T
1Pass through high-frequency coupling transformer T after boosting again
2Former limit inductance to capacitor C
3Quick charge reaches spark discharger FD discharge, forms the electromagnetic viscosimeter of high frequency.This high frequency transformation is executed the work lock of the being machined in electric arc that ignites.
The operation principle of this direct current arc welding generator is:
When engine rotation, the drive generator amature rotates, thereby in each winding of generator unit stator, produce induced potential, the centralized excitation winding 7 that the voltage that is produced in winding 3 is defeated by after three-phase commutation bridge 17 rectifications on the generator amature is replenished excitation, makes other each winding of generator obtain stable voltage.Through in the frequency striking arc device 14 middle frequency striking arc power supply after handling with welding winding 2 and connect, power supply weldering starting the arc usefulness needs 1-2 second approximately during the starting the arc.Starting the arc success back striking power supply cuts off automatically, has guaranteed welding quality.This direct current arc welding generator is that middle frequency striking arc direct current weldering and argon arc welding are the welding equipment of one, and it is joined, and accessory power supply also can throw light on, the power supply of portable electric tool.
Claims (6)
1. direct current arc welding generator, comprise welding winding (2), excitation winding (3), accessory power supply winding (5), rotor core (6), arbor (8), support (9) and fan housing (12) on stator core (1), the stator core (1), it is characterized in that: it also comprises striking winding (4) on the stator core (1) and the middle frequency striking arc device (14) that is attached thereto, the frequency striking arc device is made up of medium-frequency pulse generator and high-frequency coupling transformer two parts in described, and its circuit is connected to: rectifier bridge D
1Pass through resistance R
1With capacitor C
1Link to each other capacitor C
1Connect voltage-stabiliser tube DW and intermediate frequency step-up transformer T
1And thyristor SCR, intermediate frequency step-up transformer T
1Connect high-frequency coupling transformer T
2, T
2Connect capacitor C
3With spark discharger FD.
2. direct current arc welding generator according to claim 1 is characterized in that: the cylindrical of described stator core (1) and support (9) inwall adjacent add ventilation slot (22).
3. direct current arc welding generator according to claim 1 is characterized in that: described generator is coaxial the connection with the engine of its peripheral hardware, and its junction adds mat insulation (24).
4. direct current arc welding generator according to claim 2 is characterized in that: the support arc end relative with ventilation slot (22) has venthole (23).
5. direct current arc welding generator according to claim 1 is characterized in that: add filter screen (13) in the fan housing of support rear end (12).
6. direct current arc welding generator according to claim 1, it is characterized in that: described stator core has the folded riveting of ring-shaped silicon steel sheet of 48 line embedding grooves to form by interior round upper punch, and described rotor core is formed by the round pole engagement that evenly is provided with 8 ratchets on two cylindricals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223379 CN2446713Y (en) | 2000-08-23 | 2000-08-23 | D.C arc-welding generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 00223379 CN2446713Y (en) | 2000-08-23 | 2000-08-23 | D.C arc-welding generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2446713Y true CN2446713Y (en) | 2001-09-05 |
Family
ID=33587938
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 00223379 Expired - Fee Related CN2446713Y (en) | 2000-08-23 | 2000-08-23 | D.C arc-welding generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2446713Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391332B (en) * | 2008-05-29 | 2011-05-04 | 龚秋声 | Direct current arc welder |
| CN111906409A (en) * | 2020-08-15 | 2020-11-10 | 浙江劳士顿科技股份有限公司 | Arc striking device and method for electric welding machine |
| CN113339132A (en) * | 2021-06-30 | 2021-09-03 | 重庆华世丹动力科技股份有限公司 | Auxiliary power supply convenient for low-speed starting of direct-current generator |
-
2000
- 2000-08-23 CN CN 00223379 patent/CN2446713Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101391332B (en) * | 2008-05-29 | 2011-05-04 | 龚秋声 | Direct current arc welder |
| CN111906409A (en) * | 2020-08-15 | 2020-11-10 | 浙江劳士顿科技股份有限公司 | Arc striking device and method for electric welding machine |
| CN111906409B (en) * | 2020-08-15 | 2021-12-07 | 浙江劳士顿科技股份有限公司 | Arc striking device and method for electric welding machine |
| CN113339132A (en) * | 2021-06-30 | 2021-09-03 | 重庆华世丹动力科技股份有限公司 | Auxiliary power supply convenient for low-speed starting of direct-current generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |