CN202406046U - Medium frequency direct current power supply for chain resistance welding device - Google Patents
Medium frequency direct current power supply for chain resistance welding device Download PDFInfo
- Publication number
- CN202406046U CN202406046U CN2011204796888U CN201120479688U CN202406046U CN 202406046 U CN202406046 U CN 202406046U CN 2011204796888 U CN2011204796888 U CN 2011204796888U CN 201120479688 U CN201120479688 U CN 201120479688U CN 202406046 U CN202406046 U CN 202406046U
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- power supply
- welding
- frequency
- resistance welding
- direct current
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Abstract
The utility model relates to a welding device used for welding of chains such as anchor chains, particularly to a medium frequency direct current power supply for a chain resistance welding device. The medium frequency direct current power supply for the chain resistance welding device comprises an inverter, an input end of the inverter is connected with a three-phase alternating current power frequency power supply, and an output end of the inverter outputs a medium frequency pulse direct current voltage with frequency of 1000 Hz through a transformer and a rectifying circuit. Compared with traditional power frequency controllable alternating current welding, the three-phase load is balanced, the power factor approximates to one, the power supply is free from contamination, power consumption is reduced, and compared with traditional resistance welding, and the current controlling in welding is accurately.
Description
Technical field
The utility model relate to one be used for the welding of chain such as anchor chain welding equipment, specifically be a kind of intermediate frequency DC power supply of chain electric resistance welding equipment.
Background technology
The welding of chain all adopts the method for butt welding to come production and processing at present; Butt welding is a kind of electric resistance welding method to banjo fixing butt jointing; Electric resistance welding is divided into upset butt welding and two kinds of forms of flash butt welding again, and in conventional method, the welding equipment power supply of these two kinds of Type of Welding all adopts power frequency supply.In welding process, power frequency supply often receives the influence of voltage ripple of power network, causes the changing value of welding current bigger, directly influences weldquality.In addition, the industrial frequency AC welding has the generation of inductance and the puzzlement of zero passage, and heat efficient can not make full use of, and causes welding temperature instability in the chain production process.
Summary of the invention
The utility model technical problem to be solved is, provides a kind of and receives the influence of voltage ripple of power network little, can improve the chain welding quality, reduces the intermediate frequency DC power supply to the chain electric resistance welding equipment of power consumption.
The intermediate frequency DC power supply of the chain electric resistance welding equipment of the utility model includes an inverter; The input of inverter connects the three-phase alternating current power frequency supply; The output of inverter is exported a medium-frequency pulse direct voltage that frequency is 1000Hz through transformer and rectification circuit.
The utlity model has following advantage:
1, exchange weldering with traditional power frequency may command and compare, (1) its threephase load balance reduces the requirement to electric power system power, does not cause the spike overload mutually to any independent one, satisfies the requirement of preferential ower rate, has reduced production cost; (2) power factor approaches 1, and no inductance value need not to adjust power factor, and the efficient of welding than traditional industrial frequency electric resistance improves greatly; (3) pollution-free to power supply, power supply needn't be provided separately, can use in the lump with mechanical automation welding tooling control system; (4) reduced power consumption, low to the power supply power demand in workshop, be merely 2/3 of traditional power frequency secondary commutation electric resistance welding; Can reduce number of cables; Reduce cost, owing to significantly increased the effective value of the source of welding current, significantly reduced the time of actual welding simultaneously.
2, the intermediate frequency transformer that adopts is merely 1/3 of AC transformer quality and volume in the legacy equipment; Improved the heat input efficiency; The direct voltage of welding transformer output does not have the interference of inductance and zero passage; The efficient of heat improves greatly, and distinctive loop can also effectively be protected inverter and transformer.
3, compare with the traditional resistor weldering; The welding Control current is more accurate; Inversion system is influenced by electric power system hardly, even under the situation of voltage ripple of power network ± 15%, can realize that still welding current accurately is controlled in 2% fluctuation range; Do not receive the influence (no inductance loss) of workpiece shape and workpiece material, the adjustment precision can improve 20 times with supervision ratio of precision AC system.
Description of drawings
Fig. 1 is the circuit theory diagrams of the intermediate frequency DC power supply of the utility model chain electric resistance welding equipment.
Embodiment
As shown in the figure, the power supply of the utility model is the medium-frequency pulse DC power supply that three-phase alternating current power frequency supply process inverter 1, transformer 2 and rectification circuit 3 is transformed to 1000Hz, with its working power as the chain electric resistance welding.
Claims (1)
1. the intermediate frequency DC power supply of a chain electric resistance welding equipment; It is characterized in that: it includes an inverter; The input of inverter connects the three-phase alternating current power frequency supply, and the output of inverter is exported a medium-frequency pulse direct voltage that frequency is 1000Hz through transformer and rectification circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204796888U CN202406046U (en) | 2011-11-28 | 2011-11-28 | Medium frequency direct current power supply for chain resistance welding device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204796888U CN202406046U (en) | 2011-11-28 | 2011-11-28 | Medium frequency direct current power supply for chain resistance welding device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202406046U true CN202406046U (en) | 2012-08-29 |
Family
ID=46703660
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204796888U Expired - Lifetime CN202406046U (en) | 2011-11-28 | 2011-11-28 | Medium frequency direct current power supply for chain resistance welding device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202406046U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522905A (en) * | 2011-11-28 | 2012-06-27 | 镇江市黄墟锚链有限公司 | Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method |
-
2011
- 2011-11-28 CN CN2011204796888U patent/CN202406046U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522905A (en) * | 2011-11-28 | 2012-06-27 | 镇江市黄墟锚链有限公司 | Intermediate frequency direct-current power supply of chain resistance welding device and intermediate frequency direct-current resistance welding method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120829 |
|
| CX01 | Expiry of patent term |