CN106270925A - Sleeper beam welding Tracheal reconstruction technique - Google Patents
Sleeper beam welding Tracheal reconstruction technique Download PDFInfo
- Publication number
- CN106270925A CN106270925A CN201610870765.XA CN201610870765A CN106270925A CN 106270925 A CN106270925 A CN 106270925A CN 201610870765 A CN201610870765 A CN 201610870765A CN 106270925 A CN106270925 A CN 106270925A
- Authority
- CN
- China
- Prior art keywords
- trachea
- welding
- sleeper beam
- gas seat
- pipeline
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K9/00—Arc welding or cutting
- B23K9/0026—Arc welding or cutting specially adapted for particular articles or work
- B23K9/0052—Welding of pipe panels
Abstract
The present invention relates to sleeper beam welding Tracheal reconstruction technique, first the composition pressurize test of gas seat is carried out, if it is qualified, then it is made without repairing, if it is defective, the most then carry out Dg20 trachea crackle to judge, can repair welding if crackle is judged to, then Dg20 trachea is carried out repair welding, can not repair welding if crackle is judged to, then inside Dg20 trachea leak source position, former pipeline is excised, and the mouth of pipe is blocked, gas seat Dg50 trachea sets up tee T, near gas seat pipe road, set up Dg20 trachea be connected with tee T, adjust former air-supply pipeline, changed into new Dg20 pipeline air feed by former Dg20 pipeline air feed.Sleeper beam can be welded Tracheal reconstruction by the inventive method, reparing process is simple, it is easy to operation, repairs speed soon, and rehabilitation cost is cheap, and repair process need not dismantle sleeper beam, and the flatness of both sides air spring mounting seat is unaffected.
Description
Technical field
The present invention relates to a kind of sleeper beam welding Tracheal reconstruction technique, is particularly suited for passenger train PW-220 (K) type bogie
Tracheal reconstruction is welded at sleeper beam.
Background technology
As it is shown in figure 1, as a example by the vehicle equipped with PW-220 (K) type bogie, air spring air inlet is positioned under sleeper beam
Side, is global formation with air spring mounting seat, is welded on car body sleeper beam 1 lower cover, trachea and body bolster diaphragm section on gas seat 2
Solid welding is fixed.In utilization and maintenance process, with body bolster diaphragm weld, Dg20 trachea 3 easily occurs that crackle leaks out, and affects vehicle
The stability run.In Fig. 1,4 is Dg50 trachea.
Limiting because of its structure after trachea crackle, intractability is big.Such as integral replacing, from the cost of overhaul from the point of view of, change one
Place needs more than 10,000 yuan, and at full car 4, total cost reaches 50,000 yuan/car.From the point of view of the time between overhauls(TBO), will be by air spring mounting seat during replacing
The lower ground of overall decomposition, makes assembly welding after new product, complex procedures, completes from getting the raw materials ready to and need about one week, and the time between overhauls(TBO) is longer.And
During integral replacing, the flatness of sleeper beam both sides air spring mounting seat is difficult to control to.
Summary of the invention
The technical problem to be solved is, overcomes the disadvantages mentioned above of prior art, it is provided that a kind of sleeper beam welding gas
Pipe renovation technique.
In order to solve above technical problem, the sleeper beam welding Tracheal reconstruction technique that the present invention provides, it is characterised in that step
As follows:
T1, carry out gas seat composition pressurize test, if qualified, then be made without repair, if defective, then go to T2；
T2, carry out Dg20 trachea crackle judge, if crackle be judged to can repair welding, then go to T3, if crackle is judged to the most solderable
Repair, then go to T4；
T3, Dg20 trachea is carried out repair welding process step as follows:
A1, vehicle are in upper and lower body released state, utilize and gas seat composition is filled wind；
A2, check that with suds the outer trachea of body bolster diaphragm, with or without the leakage point, if there being leak source, then carries out mark, (trachea the leakage point base
Originally air inlet pipe and body bolster diaphragm junction are occurred in), if the spill-free point of air inlet pipe at body bolster diaphragm, then need to be at air inlet pipe position
Perforate on steel construction body bolster diaphragm, checks the leakage point to the trachea in body bolster diaphragm, and the leakage point carries out mark after confirming；
A3, gas seat is formed air draft, then the leakage point is carried out surface process, it is ensured that welding region does not has an oxide-film, and appropriateness
Polishing；
A4, manual electric arc welding carry out soldering to the leakage point,
A5, welding are followed by wind regime again to air spring air feed and carry out bicycle brake pipe leak-test and full car leak-test,
After meeting the requirements, the tapping on steel construction body bolster diaphragm is carried out closure and restores；
T4, take change gas circuit mode process, step is as follows:
B1, inside Dg20 trachea leak source position, former pipeline is excised, and the mouth of pipe is blocked；
B2, on gas seat Dg50 trachea, set up tee T, near gas seat pipe road, set up Dg20 trachea be connected with described tee T；
B3, adjust former air-supply pipeline, changed into new Dg20 pipeline air feed by former Dg20 pipeline air feed.
In order to solve above technical problem, the present invention also has the feature that
1, in step T1, pressurize test method is as follows:
I, the appendix of band Pressure gauge and valve is connected with Dg20 trachea；
II, with plug, Dg50 trachea is blocked；
III, with gas inlet plug, gas seat air inlet is blocked；
IV, connect wind regime, check that above-mentioned connecting portion has ne-leakage with suds, re-assembly during seepage, to not leaking；
V, close the valve of appendix, carry out pressurize test, it is desirable in 5min, pressure reduces less than 10kPa.Say when being unsatisfactory for
Place is sewed in the composition existence of bright gas seat.
2, in the a3 of step T3, the leakage point is carried out soldering and the leakage point is carried out surface is processed as welding front polishing, remove ferrum
Rust, greasy dirt, dirty mark, paint, clean out impurity.
3, in the a4 of step T3, the leakage point carrying out soldering and uses A302 stainless steel electrode, core diameter is 2.5mm, weldering
Meeting electric current 70-90A, welding rod needs 150 DEG C before using dries 1 hour, and stand-by in depositing in heat-preserving container.
4, in the a5 of step T3, to the tapping bevel on steel construction body bolster diaphragm, then enter by welding conditions requirement
Row closure is restored.
Sleeper beam can be welded Tracheal reconstruction by the inventive method, reparing process is simple, it is easy to operation, repairs speed
Hurry up, rehabilitation cost is cheap, and repair process need not dismantle sleeper beam, and the flatness of both sides air spring mounting seat is unaffected.
Accompanying drawing explanation
The present invention is further illustrated below in conjunction with the accompanying drawings.
Fig. 1 is PW-220 (K) type truck bolster schematic diagram.
Fig. 2 is that sleeper beam welds Tracheal reconstruction process chart.
Detailed description of the invention
As it is shown in figure 1, weld Tracheal reconstruction technique for sleeper beam, be there are two bars linked together by adjusting screw rod 1
Body 2, is arranged at the J-type clamping device 3 of the body of rod 2 outer end, and clamping device has the slot accommodating the insertion of side, truck side sill termination, inserts
Groove outer end cell wall offers screw, and screwing in having screw has clamping screw 4.The axle center of clamping screw 4 is total to the axle center of the body of rod 2
Line.In the present embodiment, adjusting screw rod 1 is the double threaded screw that both sides screw thread is contrary, and two body of rod 2 the inners have helicitic texture, adjusts
Joint screw rod 1 engages with the helicitic texture of the body of rod 2, rotates adjusting screw rod and can realize body of rod synchronization support or tension.
As in figure 2 it is shown, use view for support beam of the present invention.When framework 6 curb girder 5 needs adjusting, by this reality
Executing the installation of example device to put in place, clamping device clamps the termination of curb girder 5, the adjusting screw rod 1 of adjusting means, is adjusted by truck side sill 5
Whole to required size, then coordinate other hot adjusting means, by truck side sill size adjusting to technological requirement size, pine after completing
Open grip device can take off.In Fig. 2, remaining label implication sees Fig. 1.
Additionally, when framework welding or heat treatment, support beam of the present invention is fixed on truck side sill termination equally, utilizes work
The rigidity of skill support beam, reduces framework welding or the deformation of heat treatment, improves work efficiency.
In addition to the implementation, the present invention can also have other embodiments.All employing equivalents or equivalent transformation shape
The technical scheme become, all falls within the protection domain of application claims.
Claims (5)
1. sleeper beam welding Tracheal reconstruction technique, it is characterised in that step is as follows:
T1, carry out gas seat composition pressurize test, if qualified, then be made without repair, if defective, then go to T2；
T2, carry out Dg20 trachea crackle judge, if crackle be judged to can repair welding, then go to T3, if crackle is judged to the most solderable
Repair, then go to T4；
T3, Dg20 trachea is carried out repair welding process step as follows:
A1, vehicle are in upper and lower body released state, utilize and gas seat composition is filled wind；
A2, check that with suds the outer trachea of body bolster diaphragm, with or without the leakage point, if there being leak source, then carries out mark, (trachea the leakage point base
Originally air inlet pipe and body bolster diaphragm junction are occurred in), if the spill-free point of air inlet pipe at body bolster diaphragm, then need to be at air inlet pipe position
Perforate on steel construction body bolster diaphragm, checks the leakage point to the trachea in body bolster diaphragm, and the leakage point carries out mark after confirming；
A3, gas seat is formed air draft, then the leakage point is carried out surface process, it is ensured that welding region does not has an oxide-film, and appropriateness
Polishing；
A4, manual electric arc welding carry out soldering to the leakage point,
A5, welding are followed by wind regime again to air spring air feed and carry out bicycle brake pipe leak-test and full car leak-test,
After meeting the requirements, the tapping on steel construction body bolster diaphragm is carried out closure and restores；
T4, take change gas circuit mode process, step is as follows:
B1, inside Dg20 trachea leak source position, former pipeline is excised, and the mouth of pipe is blocked；
B2, on gas seat Dg50 trachea, set up tee T, near gas seat pipe road, set up Dg20 trachea be connected with described tee T；
B3, adjust former air-supply pipeline, changed into new Dg20 pipeline air feed by former Dg20 pipeline air feed.
Sleeper beam the most according to claim 1 welding Tracheal reconstruction technique, it is characterised in that: in step T1, pressurize test side
Method is as follows:
I, the appendix of band Pressure gauge and valve is connected with Dg20 trachea；
II, with plug, Dg50 trachea is blocked；
III, with gas inlet plug, gas seat air inlet is blocked；
IV, connect wind regime, check that above-mentioned connecting portion has ne-leakage with suds, re-assembly during seepage, to not leaking；
V, close the valve of appendix, carry out pressurize test, it is desirable in 5min, pressure reduces less than 10kPa, says when being unsatisfactory for
Place is sewed in the composition existence of bright gas seat.
Sleeper beam the most according to claim 1 welding Tracheal reconstruction technique, it is characterised in that: in the a3 of step T3, to sewing
Point carries out soldering and the leakage point carries out surface is processed as welding front polishing, removes removing rust, greasy dirt, dirty mark, paint, by dry for impurity cleaning
Only.
Sleeper beam the most according to claim 1 welding Tracheal reconstruction technique, it is characterised in that: in the a4 of step T3, to sewing
Point carries out soldering and uses A302 stainless steel electrode, and core diameter is 2.5mm, welding current 70-90A, and welding rod needs 150 DEG C before using
Dry 1 hour, and stand-by in depositing in heat-preserving container.
Sleeper beam the most according to claim 1 welding Tracheal reconstruction technique, it is characterised in that: in the a5 of step T3, steel is tied
Tapping bevel on structure body bolster diaphragm, then carries out closure by welding conditions requirement and restores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870765.XA CN106270925A (en) | 2016-09-30 | 2016-09-30 | Sleeper beam welding Tracheal reconstruction technique |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610870765.XA CN106270925A (en) | 2016-09-30 | 2016-09-30 | Sleeper beam welding Tracheal reconstruction technique |
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| CN106270925A true CN106270925A (en) | 2017-01-04 |
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| CN201610870765.XA Pending CN106270925A (en) | 2016-09-30 | 2016-09-30 | Sleeper beam welding Tracheal reconstruction technique |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357952A (en) * | 2018-11-08 | 2019-02-19 | 福州大学 | A kind of Pressurized Plastic Pipes performance testing device and its working method |
| CN111906493A (en) * | 2020-06-19 | 2020-11-10 | 中国华冶科工集团有限公司 | Repairing method for crane wheel crack |
| CN112122864A (en) * | 2020-08-11 | 2020-12-25 | 沪东中华造船(集团)有限公司 | Device and method for emergency welding of oil leakage of marine fuel pipeline |
| CN112355567A (en) * | 2020-11-11 | 2021-02-12 | 广西柳州钢铁集团有限公司 | Method for repairing cracks of bogie of metallurgical railway diesel locomotive |
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2016
- 2016-09-30 CN CN201610870765.XA patent/CN106270925A/en active Pending
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| US3394442A (en) * | 1966-09-19 | 1968-07-30 | Gulf General Atomic Inc | Tube plugging apparatus |
| US4103140A (en) * | 1977-03-08 | 1978-07-25 | Westinghouse Electric Corp. | Pneumatic hammer and welder |
| CN101956885A (en) * | 2009-07-13 | 2011-01-26 | 中冶天工上海十三冶建设有限公司 | Under-pressure plugging method for carbon steel pipe leakage |
| CN202420770U (en) * | 2011-12-12 | 2012-09-05 | 南车南京浦镇车辆有限公司 | Sleeper beam gas holder block for motor train unit |
| CN103645018A (en) * | 2013-12-05 | 2014-03-19 | 江苏新时代造船有限公司 | Fillet weld inflation test method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109357952A (en) * | 2018-11-08 | 2019-02-19 | 福州大学 | A kind of Pressurized Plastic Pipes performance testing device and its working method |
| CN111906493A (en) * | 2020-06-19 | 2020-11-10 | 中国华冶科工集团有限公司 | Repairing method for crane wheel crack |
| CN112122864A (en) * | 2020-08-11 | 2020-12-25 | 沪东中华造船(集团)有限公司 | Device and method for emergency welding of oil leakage of marine fuel pipeline |
| CN112355567A (en) * | 2020-11-11 | 2021-02-12 | 广西柳州钢铁集团有限公司 | Method for repairing cracks of bogie of metallurgical railway diesel locomotive |
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Application publication date: 20170104 |
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