CN2317575Y - Brushless excition dc arc welding generator - Google Patents
Brushless excition dc arc welding generator Download PDFInfo
- Publication number
- CN2317575Y CN2317575Y CN 97237832 CN97237832U CN2317575Y CN 2317575 Y CN2317575 Y CN 2317575Y CN 97237832 CN97237832 CN 97237832 CN 97237832 U CN97237832 U CN 97237832U CN 2317575 Y CN2317575 Y CN 2317575Y
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- winding
- excitation
- stator
- generator
- rectifier
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- Expired - Fee Related
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Abstract
The utility model relates to an excitation DC arc welding generator without brushes, which is used for welding. The utility model comprises a stator for arc welding generators, a three-phase winding for the stator, an auxiliary winding for the stator, an excitation winding, a rectifier, a motor shaft, and a machine cover. An excitation system without brushes is composed of a three-phase winding for an AC exciter with intermediate frequency, a rotary rectifier, and an excitation regulator. The utility model cancels electric brushes and slide rings in the prior art and adopts excitation without brushes. The utility model reduces the failure rate and the work load of the daily maintenance of DC arc welding generators and can work reliably and stably.
Description
The utility model belongs to a kind of technical field of generators that is configured to feature with excitation winding, is specifically related to a kind of brushless excitation direct current arc welding generator that is used to weld.
Chinese patent 94227420.2 discloses a kind of " intermediate frequency generating DC arc welder ", be made up of intermediate frequency generator and engine, the intermediate frequency three-phase alternating current that generator sends during work is for welding through the direct current that silicon rectifier and control device output characteristic meet welding requirements.With respect to arc welder in the past, it is low to have a rotating speed, shake little, the characteristics that the life-span is long.But this generator belongs to the brush self-excitation type is arranged, have brush and sliding contact parts, easy to wear or cause loose contact in unit operation, make the failure rate of unit higher.
The purpose of this utility model is at the prior art above shortcomings, provides a kind of failure rate extremely low, stable and reliable operation brushless excitation direct current arc welding generator.
The purpose of this utility model is achieved in that
This brushless excitation direct current arc welding generator comprises three-phase stator winding and the auxiliary winding of stator, arc generator excitation winding, rectifier, motor shaft and the hood on arc generator stator, the stator, it is characterized in that it also comprises by exchanging the brushless excitation system that intermediate frequency exciter rotor three phase windings, rotating rectifier and field regulator are formed; The circuit of complete machine is connected to: the auxiliary winding of the stator of arc generator connects field regulator, field regulator connects the excitation winding that exchanges the intermediate frequency exciter again, the rotor three-phase winding of interchange intermediate frequency exciter is connected and installed in the rotating rectifier in the rotating shaft, rotating rectifier connects the rotor-exciting winding of arc generator again, and the three-phase stator winding of arc generator then connects welding main converter and accessory power supply rectifier respectively.
Brush, the slip ring sliding contact parts easy to wear that the utility model has the advantages that the cancellation prior art adopts the non-brushing excitation, has reduced the failure rate and the line service amount of direct current arc welding generator, has improved unit functional reliability and stability.
The utility model is described in further detail with enforcement below in conjunction with accompanying drawing:
Fig. 1 is the utility model circuit diagram;
Fig. 2 is the utility model structural representation.
Among the figure: 1. arc generator 2. intermediate frequency excitation generators 3. arc generator three-phase stator winding 4. arc generators are auxiliary exchanges intermediate frequency exciter excitation winding 8. welding main converters 9. accessory power supply rectifiers 10. rotating rectifiers 11. field regulators 12. arc welding alternator rotors 13. motor shafts 14. fans 15. hoods around helping 5. arc generator excitation winding 6. to exchange intermediate frequency exciter rotor three phase windings 7.
Embodiment:
As shown in Figure 1, 2, this brushless excitation direct current arc welding generator mainly comprises the arc generator part, intermediate frequency excitation generator part and rectification, field regulator part.The auxiliary winding 4 of the stator of arc generator 1 connects field regulator 11, field regulator 11 connects the excitation winding 7 that exchanges intermediate frequency excitation generator 2 again, the rotor three-phase winding 6 of interchange intermediate frequency exciter is connected and installed in the rotating rectifier 10 in the rotating shaft, rotating rectifier 10 connects the excitation winding 5 of arc welding alternator rotor 12 again, the three-phase stator winding 3 of arc generator is made up of two three phase windings, connects welding main converter 8 and accessory power supply rectifier 9 respectively.Motor shaft 13 connects arc welding alternator rotor 12 and fan 14, and final assembly is in hood 15.The course of work of this machine is: by the auxiliary winding 4 of the cover of one on the arc generator stator, provide the DC excitation electric current through field regulator 11 for the excitation winding 7 of midfrequent AC exciter, the rotor three-phase winding 6 of midfrequent AC exciter induces the intermediate frequency three-phase electricity, through being installed in rotating rectifier 10 rectifications in the rotating shaft, for arc generator excitation winding 5 provides the DC excitation electric current.Thereby, the non-brushing excitation of realization direct current arc welding generator, and, satisfying the three-phase intermediate frequency exciter that 7KW direct current arc welding generator excitation requires, its volume has only 3KW power frequency generator exciter size, and weight is lighter.
Claims (1)
1. brushless excitation direct current arc welding generator, comprise three phase windings and the auxiliary winding of stator, arc generator excitation winding, rectifier, motor shaft and hood on arc generator stator, the stator, it is characterized in that it also comprises by exchanging the brushless excitation system that intermediate frequency exciter rotor three phase windings (6), rotating rectifier (10) and field regulator (11) are formed; The circuit of complete machine is connected to: the stator of arc generator assists winding (4) to connect field regulator (11), field regulator (11) connects the excitation winding (7) that exchanges the intermediate frequency exciter again, exchanging intermediate frequency encourages the rotor three-phase winding (6) of machine and is connected and installed in rotating rectifier (10) in the rotating shaft, rotating rectifier (10) connects the rotor-exciting winding (5) of arc generator, and the three-phase stator winding of arc generator (3) then connects welding main converter (8) and accessory power supply rectifier (9) respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237832 CN2317575Y (en) | 1997-10-09 | 1997-10-09 | Brushless excition dc arc welding generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97237832 CN2317575Y (en) | 1997-10-09 | 1997-10-09 | Brushless excition dc arc welding generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2317575Y true CN2317575Y (en) | 1999-05-05 |
Family
ID=33948390
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97237832 Expired - Fee Related CN2317575Y (en) | 1997-10-09 | 1997-10-09 | Brushless excition dc arc welding generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2317575Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645637B (en) * | 2008-08-04 | 2011-03-09 | 中国矿业大学 | Single-core brushless synchronous motor |
| US20180079023A1 (en) * | 2016-09-20 | 2018-03-22 | Lincoln Global, Inc. | Methods and systems for brushless welder generator |
-
1997
- 1997-10-09 CN CN 97237832 patent/CN2317575Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101645637B (en) * | 2008-08-04 | 2011-03-09 | 中国矿业大学 | Single-core brushless synchronous motor |
| US20180079023A1 (en) * | 2016-09-20 | 2018-03-22 | Lincoln Global, Inc. | Methods and systems for brushless welder 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 |