CN201565717U - Power supply device for alternating current rail flash welding machine - Google Patents
Power supply device for alternating current rail flash welding machine Download PDFInfo
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- CN201565717U CN201565717U CN2009202469634U CN200920246963U CN201565717U CN 201565717 U CN201565717 U CN 201565717U CN 2009202469634 U CN2009202469634 U CN 2009202469634U CN 200920246963 U CN200920246963 U CN 200920246963U CN 201565717 U CN201565717 U CN 201565717U
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Abstract
The utility model relates to a power supply device for a rail flash welding machine, comprising a first welding transformer, a second welding transformer, a first electrode group, a second electrode group, a first conductive shaft and a second conductive shaft, wherein the first electrode group consists of a first electrode and a second electrode which are arranged opposite to each other, and the second electrode group consists of a third electrode and a forth electrode which are arranged opposite to each other. Each welding transformer comprises a primary winding and a secondary winding, and the primary windings of the two welding transformers are connected in parallel. The first output end of the first welding transformer is directly and electrically connected with the first electrode, and the second output end of the first welding transfomer is electrically connected with the third electrode through the first conductive shaft. The first output end of the second welding transformer is directly and electrically connected with the second electrode, and the second output end of the second welding transformer is electrically connected with the fourth electrode through the second conductive shaft. In addition, the secondary windings of the first welding transformer and the second welding transformer are internally provided with cooling water channels.
Description
Technical field
The utility model relates to the electric supply installation field, is specifically related to a kind of electric supply installation that exchanges steel rail flash welding machine.
Background technology
Development along with the seamless high speed railway construction of China, domestic railway construction unit increases sharply to the demand of steel rail flash welding machine, and electric supply installation is the key components of flash welder, and its stability has directly influenced the quality of welding point and the traffic safety of high-speed railway.Because welding current reaches as high as more than the training of 5 Wan An in the welding machine course of work, caloric value is very big, so must take effective cooling provision, just can make electric supply installation keep stable, reliable duty.
At present, the type of cooling of electric supply installation is water-cooled in the domestic used steel rail flash welding machine, its method is: each the secondary copper coin outer felt at the flash welder transformer is enclosed copper pipe around one, two ends connect the delivery port and the water return outlet of transformer secondary output bus-bar respectively, and bus-bar links to each other with the water pipe of cooling-water machine, electrode, conductive shaft again.The weak point of this method is: 1, be subjected to the restriction of installing space, the copper pipe diameter that is attached to the transformer secondary output periphery is limited, has restricted the flow of cooling water; 2, the contact area of copper pipe and transformer secondary output is little, has influenced the speed that heat transmits to cooling water; 3, because the copper pipe wall thickness is little, and copper pipe and bus-bar are to link together by welding method, cause the fatigue failure of weld under the effect of welding machine long-term vibration easily, thereby cause cooling water to be revealed, for hidden danger has been buried in safety in production; 4, copper pipe is wrapped in the transformer secondary output outside, has increased the volume of transformer, is unfavorable for the installation of transformer on welder head.So the electric supply installation radiating efficiency of existing steel rail flash welding machine is low, leak easily, inconvenience is installed, cause easily that when the continuous welding operation welding circuit temperature raises, cause the efficient of electric supply installation to reduce, influence the steel rail weld joint quality of stability.
The utility model content
The purpose of this utility model is the problem that exists at existing steel rail flash welding machine electric supply installation, provides a kind of radiating efficiency height, security performance is reliable and easy-to-install steel rail flash welding machine electric supply installation.
The utility model provides a kind of electric supply installation that is used for steel rail flash welding machine, comprising:
First welding transformer;
Second welding transformer;
The first electrode group of forming by first electrode that is oppositely arranged and second electrode;
The second electrode group of forming by third electrode that is oppositely arranged and the 4th electrode;
First conductive shaft;
Second conductive shaft;
Each welding transformer comprises elementary winding and secondary windings, and the elementary winding of first and second welding transformers is connected in parallel; First output of first welding transformer directly is electrically connected with first electrode, and second output is electrically connected with third electrode by first conductive shaft; First output of second welding transformer directly is electrically connected with second electrode, and second output is electrically connected with the 4th electrode by second conductive shaft;
And the secondary windings inside of wherein said first welding transformer and described second welding transformer has cooling-water duct.
Aforesaid electric supply installation, the secondary windings of each of described first welding transformer and described second welding transformer is made up of a plurality of C type members and two bus-bars, and described C type component inside has cooling-water duct.
Aforesaid electric supply installation, each described C type member is by two C type copper coins and be clipped between these two C type copper coins, the copper bar with the outer edge form fit of C type copper coin is welded respectively, and wherein place, the two ends of each described C type member respectively has an opening.
Aforesaid electric supply installation, each described bus-bar have with C type number of components and are used for the welding opening that communicates with C type member and one or more external opening of being connected with outside cooling-water machine of being used for accordingly.
Aforesaid electric supply installation, the secondary windings of each of described first welding transformer and described second welding transformer comprise 3 C type members.
Aforesaid electric supply installation, described first conductive shaft, described first electrode, described third electrode inside have cooling-water duct, and the cooling-water duct order of described first Secondary winding of transformer, described first conductive shaft, described first electrode, described third electrode is connected with outside cooling-water machine.
Aforesaid electric supply installation, described second conductive shaft, described second electrode, described the 4th electrode interior have cooling-water duct, and the cooling-water duct order of described second Secondary winding of transformer, described second conductive shaft, described second electrode and described the 4th electrode is connected with outside cooling-water machine.
Description of drawings
Fig. 1 is according to the steel rail flash welding machine electric supply installation perspective view of the utility model embodiment;
Fig. 2 is used for the perspective view of secondary windings of the welding transformer of embodiment shown in Fig. 1;
Fig. 3 is used for the profile (along C type member center, be parallel to the copper coin direction and cut open) of a C type member in the secondary windings of welding transformer of embodiment shown in Fig. 1;
Fig. 4 is according to the electric supply installation cooling water circulation schematic diagram of the utility model embodiment.
The specific embodiment
Below in conjunction with embodiment shown in the drawings the utility model is described further:
As shown in Figure 1, the steel rail flash welding machine electric supply installation of present embodiment is made up of first welding transformer 1, second welding transformer 2, the first electrode group (comprising first electrode 11 and second electrode 12 that are oppositely arranged), the second electrode group (comprising the third electrode 13 and the 4th electrode 14 that are oppositely arranged) and first conductive shaft 5, second conductive shaft 6.Each welding transformer comprises elementary winding and secondary windings, and elementary winding and secondary windings are provided with one heart, and the elementary winding in the present embodiment adopts the routine configuration in this area.Two welding transformers 1,2 adopt parallel way to be electrically connected (being the input in parallel of elementary winding).First output of first welding transformer directly is electrically connected with first electrode, and second output is electrically connected with third electrode by first conductive shaft 5; First output of second welding transformer directly is electrically connected with second electrode, and second output is electrically connected with the 4th electrode by second conductive shaft 6, and wherein first output of first welding transformer is identical with the first output phase place of second welding transformer.Two electrode groups can closely contact with the soldered rail web of the rail, are the welding process power supply.In the present embodiment, first and second conductive shafts are made of copper.
In order to improve radiating efficiency, the secondary windings of each welding transformer in the electric supply installation of present embodiment is formed (as shown in Figure 2) by 23,24,25 and two cuboid bus- bars 21,22 by cooling-water duct of three groups of hollow C type members, and the number of C type member can also be 4,5,6 etc. as required.
With reference to Fig. 3, each C type member is welded by two C type copper coins (preferred copper plate).Concrete preparation method is, in the middle of two C type copper coins that profile is identical, thickness is 6mm, respectively press from both sides one along the outer edge of copper coin and thickly be the thin copper bar of 2mm, be clipped in the outward flange form fit (position corresponding of shape and C type copper coin of the thin copper bar 31 of outer edge with the bus-bar entery and delivery port, the place, two ends that is the C type reserves opening 33,34 respectively, promptly there is not thin copper bar) at this place, be clipped in the shape of thin copper bar 32 of inside edge and the inward flange form fit of C type copper coin, with argon arc welding the position of two copper coins along the thin copper bar in folder shop welded together then.In the middle of copper coin, just formed the cooling-water duct (as shown in Figure 3) of C type member like this.
Continuation is with reference to Fig. 2,3 openings that have on the side of each bus-bar (in Fig. 2 for bottom surface) with the opening size coupling of C type member 23,24,25 ends (are called here, the welding opening), have three openings that are used for joining on the side adjacent and (be called external opening here with outer water tube with this side, external opening on bus-bar is as the water inlet of this welding transformer secondary windings, and the external opening on another bus-bar is as the delivery port of this welding transformer secondary windings).When welding, as shown in Figure 2, three hollow C type members are be arranged in parallel, three with first bus-bar are welded opening and aim at respectively at three openings of three C type member first sides (being the left side among this figure), then first bus-bar is welded together with three C type members respectively, in like manner three with second bus-bar weld opening and aim at three openings of three C type member second sides (being the right side among this figure), then second bus-bar are welded together with three C type members respectively.At two bus-bars and three middle cooling-water ducts that just formed the welding transformer secondary windings of C type member, also be the cooling-water duct of welding transformer like this.
Those skilled in the art should be understood that the inside of the inside of conductive shaft 5,6 and first electrode 11, second electrode 12, third electrode 13 and the 4th electrode 14 also has cooling-water duct, water inlet and delivery port separately.In Fig. 1, the water inlet of conductive shaft 5, conductive shaft 6, third electrode 13, the 4th electrode 14 and delivery port represent with one in two stains on the end face separately respectively, the going out of other assemblies, water inlet since view relation in Fig. 1 and not shown.Adopt the routine techniques in this area, such as utilize aqueduct, the delivery port of cooling-water machine is linked to each other with the water inlet of first welding transformer, 1 secondary windings, the delivery port of first welding transformer, 1 secondary windings is linked to each other with the water inlet of the cooling-water duct of conductive shaft 5, the delivery port of the cooling-water duct of conductive shaft 5 is linked to each other with the water inlet of the cooling-water duct of third electrode 13, the delivery port of the cooling-water duct of third electrode 13 is linked to each other with the water inlet of the cooling-water duct of first electrode 11, the delivery port of the cooling-water duct of first electrode 11 is linked to each other with the water return outlet of cooling-water machine.So just formed a cooling loop to first welding transformer, conductive shaft, first electrode, third electrode.Certainly, the order of each parts of cooling loop can appropriate change.
Fig. 4 be in the electric supply installation cooling water flow to schematic diagram.As shown in the figure, cooling water at first is input to the secondary windings cooling-water duct of welding transformer (first welding transformer and/or second welding transformer) from cooling-water machine, the secondary windings of welding transformer of flowing through is discharged from the delivery port of welding transformer, enter the cooling-water duct of conductive shaft inside then, enter the cooling-water duct in the electrode (successively entering first electrode and third electrode) then, flow back to cooling-water machine at last again and carry out cooling processing.Be appreciated that cooling-water machine can realize two-way cooling water output or one tunnel output back shunting fully simultaneously, being respectively applied for is first welding transformer and the cooling of second welding transformer.
The cooling-water duct of the C type member that is adopted in the present embodiment has bigger cross-sectional area, and cooling-water flow speed is fast under identical hydraulic pressure, helps the raising of radiating efficiency; And because the direct secondary windings by welding transformer of cooling water, so that the contact area of the generating components such as secondary windings of cooling water and welding transformer is big, according to Fourier heat conduction law, under the identical situation of thermograde, the big more heat transmission speed of contact area is just fast more, and therefore, the cooling velocity of welding transformer is also fast more, help reducing the temperature of electric supply installation integral body, thereby reduce internal resistance, increase power output; Because the copper plate thickness that adopts is big, has reduced the difficulty of welding procedure in the manufacturing process, has improved the performance of weld seam, is not prone to the phenomenon of leaking, and makes that this electric supply installation is more safe and reliable; Owing to removed the copper pipe of secondary windings periphery, make the volume of transformer reduce to some extent, be convenient to its installation in welding machine.In addition, though according among the utility model embodiment, conductive shaft, C type member become by copper.
It should be noted last that above embodiment is only unrestricted in order to the explanation the technical solution of the utility model.Although the utility model is had been described in detail with reference to embodiment, those of ordinary skill in the art is to be understood that, the technical solution of the utility model is made amendment or is equal to replacement, the spirit and scope that do not break away from technical solutions of the utility model, it all should be encompassed in the middle of the claim scope of the present utility model.
Claims (7)
1. an electric supply installation that is used for steel rail flash welding machine is characterized in that, comprising:
First welding transformer;
Second welding transformer;
The first electrode group of forming by first electrode that is oppositely arranged and second electrode;
The second electrode group of forming by third electrode that is oppositely arranged and the 4th electrode;
First conductive shaft;
Second conductive shaft;
Each welding transformer comprises elementary winding and secondary windings, and the elementary winding of first and second welding transformers is connected in parallel; First output of first welding transformer directly is electrically connected with first electrode, and second output is electrically connected with third electrode by first conductive shaft; First output of second welding transformer directly is electrically connected with second electrode, and second output is electrically connected with the 4th electrode by second conductive shaft;
And the secondary windings inside of wherein said first welding transformer and described second welding transformer has cooling-water duct.
2. electric supply installation according to claim 1 is characterized in that, the secondary windings of each of described first welding transformer and described second welding transformer is made up of a plurality of C type members and two bus-bars, and described C type component inside has cooling-water duct.
3. electric supply installation according to claim 2, it is characterized in that, each described C type member is by two C type copper coins and be clipped between these two C type copper coins, the copper bar with the outer edge form fit of C type copper coin is welded respectively, and wherein place, the two ends of each described C type member respectively has an opening.
4. electric supply installation according to claim 2 is characterized in that, each described bus-bar has with C type number of components and is used for the welding opening that communicates with C type member and one or more external opening of being connected with outside cooling-water machine of being used for accordingly.
5. electric supply installation according to claim 2 is characterized in that, the secondary windings of each of described first welding transformer and described second welding transformer comprises 3 C type members.
6. electric supply installation according to claim 1, it is characterized in that, described first conductive shaft, described first electrode, described third electrode inside have cooling-water duct, and the cooling-water duct order of described first Secondary winding of transformer, described first conductive shaft, described first electrode, described third electrode is connected with outside cooling-water machine.
7. electric supply installation according to claim 1, it is characterized in that, described second conductive shaft, described second electrode, described the 4th electrode interior have cooling-water duct, and the cooling-water duct order of described second Secondary winding of transformer, described second conductive shaft, described second electrode and described the 4th electrode is connected with outside cooling-water machine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202469634U CN201565717U (en) | 2009-11-11 | 2009-11-11 | Power supply device for alternating current rail flash welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202469634U CN201565717U (en) | 2009-11-11 | 2009-11-11 | Power supply device for alternating current rail flash welding machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201565717U true CN201565717U (en) | 2010-09-01 |
Family
ID=42658001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202469634U Expired - Fee Related CN201565717U (en) | 2009-11-11 | 2009-11-11 | Power supply device for alternating current rail flash welding machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201565717U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049602A (en) * | 2010-12-03 | 2011-05-11 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
| AT15368U1 (en) * | 2016-04-01 | 2017-07-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | Welding unit for welding two rails of a track |
-
2009
- 2009-11-11 CN CN2009202469634U patent/CN201565717U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102049602A (en) * | 2010-12-03 | 2011-05-11 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
| CN102049602B (en) * | 2010-12-03 | 2013-03-27 | 中国铁道科学研究院金属及化学研究所 | Steel rail flash welding machine and container type steel rail flash welding equipment |
| AT15368U1 (en) * | 2016-04-01 | 2017-07-15 | Plasser & Theurer Export Von Bahnbaumaschinen Gmbh | Welding unit for welding two rails of a track |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: CHINA ACADEMY OF RAILWAY SCIENCES Free format text: FORMER OWNER: RAILWAY SCIENTIFIC RESEARCH ACADEMY METAL AND CHEMICAL RESEARCH INSTITUTE Effective date: 20120828 Owner name: RAILWAY SCIENTIFIC RESEARCH ACADEMY METAL AND CHEM Effective date: 20120828 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120828 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Co-patentee after: Railway Scientific Research Academy Metal And Chemical Research Institute Patentee after: China Academy of Railway Sciences Address before: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee before: Railway Scientific Research Academy Metal And Chemical Research Institute |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100901 Termination date: 20151111 |
|
| EXPY | Termination of patent right or utility model |