CN203292682U - Movable groove type rail flash welding machine - Google Patents
Movable groove type rail flash welding machine Download PDFInfo
- Publication number
- CN203292682U CN203292682U CN201320292218XU CN201320292218U CN203292682U CN 203292682 U CN203292682 U CN 203292682U CN 201320292218X U CN201320292218X U CN 201320292218XU CN 201320292218 U CN201320292218 U CN 201320292218U CN 203292682 U CN203292682 U CN 203292682U
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- grooved rail
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Abstract
A movable groove type rail flash welding machine comprises at least two welding machine jaw clamping devices 1 and a welding control end 2 connected with the welding machine jaw clamping devices 1, wherein the welding control end 2 comprises a welding transformer 21, a movable frame 221 and a fixed frame 222, the movable frame 221 and the fixed frame 222 are connected with the welding transformer 21, and are connected with the welding machine jaw clamping devices 1 respectively, and the welding machine jaw clamping devices 1 comprise jaw rotating shafts 15, left jaws 12 which are in the shape of a left bracket, right jaws 13 which are in the shape of a right bracket and electrode cushion blocks 11. The movable groove type rail flash welding machine aims to carry out innovative design on the jaw structure of the movable groove type rail flash welding machine, the problem of bidirectional clamping of a groove type rail is solved, and meanwhile the problem that a large-size rail top stretches into a jaw is solved.
Description
Technical field
The utility model relates to the welding of grooved rail, specifically, relates to and a kind ofly can realize the two-way clamping of on-the-spot right title grooved rail and a kind of portable grooved rail flash welder of welding.
Background technology
The grooved rail is widely used in forming gapless track by welding in the track laying of urban tram at present.
Existing grooved rail flash welder is subject to method of clamping due to equipment and the restriction of the factor such as weight is excessive, can't use at the scene.The jaw of flash welding machine for fixed steel rail is generally the up and down clamp structure, clamping grooved rail is comparatively easy, but it requires the grooved rail must pass welding machine, the electrode retaining part is rail head and the flange of rail of grooved rail, and require the grooved rail to be positioned at 800mm to the 1000mm eminence of welding machine, this can not realize the clamping of grooved rail for Site Welding.In fact the characteristics of urban tram are that the circuit mileage is generally little,, due in batches less, are not suitable for adopting factory or the long rail of base welding, then with the mode that is transported to scene of long rail car, because can make like this welding cost increase substantially.
A kind of steel rail flash welding machine is disclosed in 200910182212.5 of Chinese number of patent applications are called the patent of invention of " steel rail flash welding machine ", but the steel rail flash welding machine of this invention is merely able to weld the common rail of symmetry and slotless, reason is that the rail head of common rail is not only symmetrical, and the rail head width is narrower, and welding machine is easier to realize to the clamping ratio of rail.But due to this jaw to open size limited, and grooved rail cross section is asymmetrical, jaw is difficult to realize two-way clamping, thereby can't realize on scene or line carrying out the welding of grooved rail.Further, due to the web of the rail and the flange of rail thinner thickness of grooved rail, and width is larger, and this invention can't meet welding requirements, therefore, needs a kind of new portable grooved rail flash welder of design to meet this a series of requirements.
The utility model content
The purpose of this utility model is the jaw structure of mobile steel rail flash welder and control method are carried out innovative design, makes welding machine accomplish the welding of the multiple rail types such as rail and grooved rail.
A kind of portable grooved rail flash welder, comprise at least two welding machine jaw clamping devices 1 and be attached thereto the welding control end 2 that connects, wherein, jaw device 1 comprises jaw rotating shaft 15, " the left jaw 12 of [" type, "] " the right jaw 13 of type and electrode cushion block 11, is characterized in that, jaw rotating shaft 15 lower ends are provided with tread locating piece 14, and " the left jaw of [" type 12 upper ends are connected with jaw rotating shaft 15; "] " the right jaw of type 13 upper ends are connected with jaw rotating shaft 15, and it is inboard that electrode cushion block 11 is arranged at right jaw 13 lower ends.The web of the rail position below grooved rail groove has been selected in the position of pad utmost point piece 11, and only pads at this on one side, like this, can so that jaw open size reduction, than being easier to realize two-way clamping.
" the left jaw of [" type 12 bottoms are provided with left electroplax 121; "] " the left jaw of type 13 bottoms are provided with right electroplax 131.
The right electroplax 131 that the right jaw 13 of " the left jaw 12 of [" type, "] " type and " left electroplax 121 and "] that the left jaw of [" type 12 bottoms arrange " the left jaw of type 13 bottoms arrange is symmetrical.Adopt the symmetrical design of electrode, only need to the cushion block pad below the grooved rail groove of inboard, just can realize the two-way clamping of left and right inguinal canal type rail.
Electrode cushion block 11 is in strip cuboid, and its material is conducting metal and magnetic material, and its stage casing is magnetic veener 111, and two ends are conducting surface 112.Two ends are that the purpose of conducting surface 112 is conductions, so designing material has adopted the good material of electric conductivity.In order to make cushion block easy to use, designed magnetic material veneer 111 on cushion block, cushion block can comparatively be easy to place the web of the rail position of grooved rail like this.
Removable between electrode cushion block 11 and right jaw 13, and can be installed on left jaw 12 or any side of right jaw 13.
Moving frame 221 be connected 222 driving power resources that connect oil cylinders 223 in hydraulic power source 23, drive cylinder action direction and stretching speed and realized by fast hydraulic pressure valve 24 and speed-regulating hydraulic valve 25.Drive the command source of fast hydraulic pressure valve 24 and speed-regulating hydraulic valve 25 in setting parameter device 26 and program pressure controller 27.
Description of drawings
Fig. 1 is portable grooved rail flash welder jaw clamping device schematic diagram;
Fig. 2 illustrates grooved rail groove and is positioned at the right welding machine jaw and opens mode;
Fig. 3 illustrates grooved rail groove and is positioned at the right welding machine jaw method of clamping;
Fig. 4 illustrates grooved rail groove and is positioned at left side welding machine jaw method of clamping;
Fig. 5 is electronic pads block structure schematic diagram;
Fig. 6 is welding control system principal diagram intention;
Fig. 7 is the welding procedure curve synoptic diagram;
Fig. 8 illustrates regular troughs position (common rail) welding machine jaw method of clamping.
The specific embodiment
Below in conjunction with the drawings and specific embodiments, a kind of mobile grooved rail flash welder that the utility model provides is described in detail.
The purpose of this utility model is the jaw structure of mobile steel rail flash welder is carried out innovative design, on the basis that does not change welding machine jaw opening angle, electrode still adopts the symmetrical structure design, increase parts when clamping grooved rail, these parts are applied to one side of the grooved web of the rail, both can solve grooved rail two-way clamping problem, and also solve the large scale tread simultaneously and stretched into the jaw problem.Moreover,, because the opening angle of jaw does not change, when the common symmetry steel rail of needs welding,, by providing for simple replacement of electrode (electroplax), just can realize easily welding common symmetry steel rail, make welding machine accomplish the welding of the multiple rail types such as rail and grooved rail.
Shown in Figure 1, mobile grooved rail flash welder comprises at least two welding machine jaw clamping devices 1 and is attached thereto the welding control end 2 that connects.
As shown in Figure 1, jaw clamping device 1 comprises jaw rotating shaft 15, " the left jaw 12 of [" type, "] " the right jaw 13 of type and electrode cushion block 11, jaw rotating shaft 15 lower ends are provided with tread locating piece 14, and " the left jaw of [" type 12 upper ends are connected with jaw rotating shaft 15; "] " the right jaw of type 13 upper ends are connected with jaw rotating shaft 15, and it is inboard that electrode cushion block 11 is arranged at right jaw 13 lower ends.The web of the rail position below grooved rail groove has been selected in the position of electrode cushion block 11, and only pads at this on one side.
The consideration for two aspects like this: be on the one hand easy to use, Yi Bian because only need to pad and get final product during welding; The cross section of grooved rail own and unsymmetric structure on the other hand, rail head just in time relatively groove so that selecting below the pad groove can be so that the position of the whole centre of form in the middle of being in relatively, like this, can so that jaw open size reduction, than being easier to realize two-way clamping.
" the left jaw of [" type 12 bottoms are provided with left electroplax 121; "] " the left jaw of type 13 bottoms are provided with right electroplax 131.
Shown in Figure 3, utilize elastomer on grooved rail groove lower jaw electrode 32 application of force that makes progress, simultaneously, electrode is loin restriction grooved rail 3 transverse shiftings in-orbit, make grooved rail tread 31 contact location with welding machine rail head locating piece 14.
Welding machine jaw clamping grooved rail also prevents that mode and common welding machine that the grooved rail is along the longitudinal movement from changing to some extent, below clamping grooved rail rail head, the electrode of the web of the rail one side 33 is to rigidly fix with the welding machine jaw, therefore, can rely on this grooved rail 3 to be fixed in the jaw 1 of welding machine on one side.
Web of the rail opposite side 34, because electrode cushion block 11 and electrode 131 are only that contact-making surface is connected, grooved rail 3 is in indirect joint with jaw 1, and this structure fixedly grooved rail 3 is fixing with the contact-making surface 33 of grooved rail one siding track waist by single-sided electrode 121 in jaw 1 to a great extent.
The right electroplax 131 that the right jaw 13 of " the left jaw 12 of [" type, "] " type and " left electroplax 121 and "] that the left jaw of [" type 12 bottoms arrange " the left jaw of type 13 bottoms arrange is symmetrical.
As shown in Figure 4, due to grooved rail cross section this as unsymmetric structure, welding machine is faced on the line be left and right inguinal canal type rail groove all to the inside, welding left and right inguinal canal type rail must be two-way all can clamping, if the electrode asymmetric design of welding machine, be welded on when a left and right burst conversion is welded and must carry out the rotations of 180 degree, this is very unpractical.And adopt the symmetrical design of electrode, only need to the cushion block pad below the grooved rail groove of inboard, just can realize the two-way clamping of left and right inguinal canal type rail.
Shown in Figure 5, electrode cushion block 11 is in strip cuboid, and its material is conducting metal and magnetic material, and its stage casing is magnetic veener 111, and two ends are conducting surface 112.Two ends are that the purpose of conducting surface 112 is conductions, so designing material has adopted the good material of electric conductivity.In order to make cushion block easy to use, designed magnetic material veneer 111 on cushion block, cushion block can comparatively be easy to place the web of the rail position of grooved rail like this.
Shown in Figure 6, welding control end 2 comprises welding transformer 21, wherein, the welding transformer just utmost point 211 directly connects power supply 20, be communicated with simultaneously electrical signal collection device 213, the welding transformer time utmost point 212 connects moving frames 221 and quiet 222, and quiet 222 moving frame 221 and quiet 222 insulation stiff end 224 that connects oil cylinder 22 and left end is fixing, and moving frame 221 indirectly.
Moving frame 221 be connected 222 driving power resources that connect oil cylinders 223 in hydraulic power source 23, drive cylinder action direction and stretching speed and realized by fast hydraulic pressure valve 24 and speed-regulating hydraulic valve 25.Drive the command source of fast hydraulic pressure valve 24 and speed-regulating hydraulic valve 25 in setting parameter device 26 and cyclelog 27.
Before welding grooved rail, welding condition is input to setting parameter device 26, send instruction by cyclelog 27 in welding process, drive fast hydraulic pressure valve 24 or speed-regulating hydraulic valve 25, connect oil cylinder 223 actions thereby drive dynamic and static.
When electrical signal collection device 213 receives signal and cyclelog 27 when bigger than normal, cyclelog 27 sends instruction to fast hydraulic pressure valve 24 or speed-regulating hydraulic valve 25, drive dynamic and static and connect oil cylinder 223 elongations, moving frame 224 and quiet 222 displacement reduce (opposing and go); When electrical signal collection device 213 receives signal and cyclelog 27 when more too low, cyclelog 27 sends instruction to fast hydraulic pressure valve 24 or speed-regulating hydraulic valve 25, drive moving frame 224 and be connected 222 connection oil cylinders 223 shortening, moving frame 224 and quiet 222 displacements increase (going in the same direction).
Driving moving frame 224 222 connects oil cylinder 223 stretching speeds and is required to determine according to cyclelog 27 by fast hydraulic pressure valve 24 or speed-regulating hydraulic valve 25 with being connected, direction and size are that needed voltage during according to welding, electric current and the requirement of time are determined, unify to send instruction by cyclelog 27.
Welding control system has adopted multistage pulsation and the design of multistage flash of light speed change mode of heating, changed the current feedback mode, changed over for multichannel advance, stop and move back mode by the single channel forward and back, by increasing by one, overlap special electrohydraulic servo system and supporting control software realization.
The main purpose that adopts the method is to coordinate welding transformer, accurately realizes the realization to grooved rail welding procedure.Make the homogeneous heating of grooved rail welding end surface in the pulsation stage of welding, do not form group flashing light, and pulsation is very stable, can guarantee that so just grooved rail welding procedure is stable, for continuous acceleration subsequently, glisten and lay a good foundation.In the welding continuous acceleration flash of light stage in latter stage, this system can guarantee effectively that short circuit does not appear in grooved rail group flashing light or the wild effect such as open circuit occurs, and has widened the debugging scope of welding procedure.
Multistage pulsation and multistage flash of light speed change mode of heating are realized as shown in Figure 7.Be divided into 4 and 5 time periods in welding pulsation and acceleration flash of light stage, the voltage in each stage is step-less adjustment, and power supply 20 is divided into 5 grades with moving frame 224, quiet 222 velocity of displacements, is respectively F.F., slow-motion, stops, moves back slowly and rewind down.
For the pulsation stage in stage 1 to stage 4, be to be heated to be the master with grooved rail 1 welding heat affected zone, electric current 40 is higher, and voltage is lower, and the total displacement amount is less.Increase along with grooved rail end face heat, to suitably descend in order to overcome displacement 41 increase voltages 44, electric current 40 and dynamic and static connection oil cylinder 223 stretching speeds (displacement 41 speed) all should be adjusted, owing to having carried out multistage pulsating scintillation, the technology stability in the time of can effectively realizing the welding of grooved rail.
For the acceleration flash of light stage in stage 5 to stage 9, be to be heated to be the master with grooved rail end face, electric current 40 is lower, and voltage is higher, and the total displacement amount is larger., because the parameter setting with previous stage differs greatly, therefore, need multistage transition could realize the continuity of technical process, by shown in Figure 7, stage 5,6 has realized that continuous voltage raises and the electric current continuous decrease, short circuit and breaking phenomena do not occur, and stage 7 to the stage 9 enters the steady and continuous flash of light.
This movable type grooved rail flash welder is also fully compatible for common rail welding.By shown in Figure 8, after left and right electrode is changed, get final product direct clamping rail, because common rail itself is full symmetric, therefore, weld on line recipient not to impact, simultaneously,, because the rail head width of rail is narrower, need not to increase the electrode cushion block, the angle that jaw opens and the same the getting final product of grooved rail opening angle, so just need not other places of clamping device are transformed.Certainly, have too the characteristic of compatible common rail welding for other positions of welding machine, therefore, can effectively weld the rail of other kinds.
It should be noted that finally, above embodiment is only in order to describe the technical solution of the utility model rather than the present technique method is limited, the utility model can extend to other modification, variation, application and embodiment in application, and therefore thinks that all such modifications, variation, application, embodiment are in spirit of the present utility model and teachings.
Claims (10)
1. portable grooved rail flash welder, comprise at least two welding machine jaw clamping devices (1) and be attached thereto the welding control end (2) that connects, wherein, jaw clamping device (1) comprises jaw rotating shaft (15), " the left jaw of [" type (12), "] " the right jaw of type (13) and electrode cushion block (11), jaw rotating shaft (15) lower end is provided with tread locating piece (14), and " the left jaw of [" type (12) upper end is connected with jaw rotating shaft (15); "] " the right jaw of type (13) upper end is connected with jaw rotating shaft (15), and it is inboard that electrode cushion block (11) is arranged at right jaw (13) lower end.
2. portable grooved rail flash welder according to claim 1, it is characterized in that, welding control end (2) comprises welding transformer (21) and coupled moving frame (221), quiet (222), moving frame (221) be connected (222) connect respectively welding machine jaw clamping device (1).
3. portable grooved rail flash welder according to claim 1, is characterized in that, " the left jaw of [" type (12) bottom is provided with left electroplax (121); "] " the left jaw of type (13) bottom is provided with right electroplax (131).
4. portable grooved rail flash welder according to claim 3, is characterized in that, left electroplax (121) top is provided with left support point (1211); Right electroplax (131) top is provided with right support point (1311).
5. portable grooved rail flash welder according to claim 1, it is characterized in that, the right electroplax (131) that described " the left jaw of [" type (12), "] " the right jaw of type (13) and " the left electroplax (121) that the left jaw of [" type (12) bottom arranges and "] " the left jaw of type (13) bottom arrange is symmetrical.
6. portable grooved rail flash welder according to claim 1, is characterized in that, electrode cushion block (11) is the bar shaped cuboid; Its stage casing is magnetic veener (111), and two ends are conducting surface (112).
7. portable grooved rail flash welder according to claim 1, is characterized in that, and is removable between described electrode cushion block (11) and right jaw (13), and can be installed on left jaw (12) or any side of right jaw (13).
8. portable grooved rail flash welder according to claim 2, it is characterized in that, described welding control end (2) comprises welding transformer (21), wherein, the welding transformer just utmost point (211) directly connects power supply (20), is communicated with simultaneously electrical signal collection device (213); The welding transformer time utmost point (212) connects moving frame (221) and quiet (222).
9. portable grooved rail flash welder according to claim 2, is characterized in that, in described welding control end (2), it is fixing that quiet (222) connect dynamic and static the insulation stiff end (224) of oil cylinder (22) and left end, and connect moving frame (221).
10. portable grooved rail flash welder according to claim 2, is characterized in that, the coil winding mode of described welding transformer (21) is separate type; The tieing connected mode connects for additional copper coin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320292218XU CN203292682U (en) | 2013-05-24 | 2013-05-24 | Movable groove type rail flash welding machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320292218XU CN203292682U (en) | 2013-05-24 | 2013-05-24 | Movable groove type rail flash welding machine |
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| Publication Number | Publication Date |
|---|---|
| CN203292682U true CN203292682U (en) | 2013-11-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320292218XU Withdrawn - After Issue CN203292682U (en) | 2013-05-24 | 2013-05-24 | Movable groove type rail flash welding machine |
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| Country | Link |
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| CN (1) | CN203292682U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264217A (en) * | 2013-05-24 | 2013-08-28 | 中国铁道科学研究院金属及化学研究所 | Movable type groove type rail flash welding machine |
-
2013
- 2013-05-24 CN CN201320292218XU patent/CN203292682U/en not_active Withdrawn - After Issue
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103264217A (en) * | 2013-05-24 | 2013-08-28 | 中国铁道科学研究院金属及化学研究所 | Movable type groove type rail flash welding machine |
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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: BEIJING RAILWELD CO., LTD. CHINA ACADEMY OF RAILWA Effective date: 20150327 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20150327 Address after: 100081 Beijing city Haidian District Daliushu Road No. 2 Patentee after: Railway Scientific Research Academy Metal And Chemical Research Institute Patentee after: Beijing China Academy of Railway Science New Material & Technology Co., Ltd. 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 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20131120 Effective date of abandoning: 20151223 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |