CN202701619U - Butt joint structure with high assembling precision - Google Patents
Butt joint structure with high assembling precision Download PDFInfo
- Publication number
- CN202701619U CN202701619U CN 201220267676 CN201220267676U CN202701619U CN 202701619 U CN202701619 U CN 202701619U CN 201220267676 CN201220267676 CN 201220267676 CN 201220267676 U CN201220267676 U CN 201220267676U CN 202701619 U CN202701619 U CN 202701619U
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- butt joint
- joint structure
- pipe
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Abstract
The utility model relates to a butt joint structure with high assembling precision. The butt joint structure is characterized in that a gasket pipe is machined at the butt joint end of one of two workpieces which are subjected to butt joint, and the other workpiece is sleeved on the outer wall of the gasket pipe and is welded with the outer wall into a whole. The butt joint structure adopts a form of a joint with the gasket pipe, ensures that the two workpieces subjected to butt joint are radically fixed relatively to form constraint, and ensures the radial dimensional precision during assembling; meanwhile, the butt joint structure can adjust the axial dimensions of the two workpieces, improves the assembling accuracy and meets the requirement on the welding quality; and the design of the gasket pipe is used for protecting a molten pool. The gaskets are different from the ordinary locking bottom, and the pipe wall thickness of the areas except the gaskets is recovered to the conventional wall thickness, so that the phenomenon of stress concentration is prevented, the labor intensity of workers is reduced when the design requirements are met, the rejection rate is reduced, and the production efficiency can be greatly improved.
Description
Technical field
The utility model relates to a kind of joint design, especially relates to the high pipe pipe banjo fixing butt jointing structure of a kind of assembling precision.
Background technology
The horizontal curb girder interface of current track Passenger Car Bogie Frame mainly adopts two kinds of forms: pipe-plate connecting T-shaped joint, pipe-pipe connect linerless (or lock end) banjo fixing butt jointing.The first form joint, post-weld stress is concentrated large, and the welding seam grinding amount is large, also is unfavorable for Non-Destructive Testing (especially inner the detection).The second form joint; although avoided above-mentioned three aspects: unfavorable factor; but be unfavorable for welding; especially structural requirement crossbeam and curb girder interface situation about must weld at framework; axially and the radially assembling precision that pipe-pipe connects the linerless banjo fixing butt jointing descends simultaneously, and owing to can not implement two-sided welding, does not have again the molten bath protection; burn-through easily appears in postwelding, stay and the defective such as lack of penetration, reduced product percent of pass.
Summary of the invention
The utility model is optimized original structure, provides a kind of assembling precision high, reduces stress and concentrates, and is convenient to the banjo fixing butt jointing structure of quality control and detection.
[0004]For achieving the above object, the utility model provides a kind of assembling precision high banjo fixing butt jointing structure, it is characterized in that: the butt end of a workpiece in two workpiece that connect is processed with spacer tube, and it is integrally welded that another workpiece is enclosed within the spacer tube outer wall.
In order to reduce metal filled amount, the groove that two workpiece that connect form is the combining form of J type and monolateral V-type.
The utility model adopts the joint form that carries spacer tube; two workpiece that assurance connects are radially relatively fixing; form constraint; guaranteed group to the time the radial dimension precision; can regulate again simultaneously two workpiece axial dimensions; improve assembling precision; satisfy welding quality; and spacer tube be designed for molten bath protection, the liner that carries here is different from the bottom of the common lock, returns to origianl wall thickness at liner with the exterior domain thickness of pipe wall; so more being conducive to reduce stress concentrates; when meeting design requirement, reduce labor strength, also reduced percent defective, can increase substantially production efficiency.
Description of drawings
Accompanying drawing 1 is structural representation of the present utility model.
The specific embodiment
With reference to accompanying drawing 1, the butt end of the workpiece 1 in two workpiece that connect is processed with spacer tube 4, and it is integrally welded that another workpiece 5 is enclosed within the spacer tube outer wall.In order to reduce metal filled amount, groove is the combining form of J type 2 and monolateral V-type 3.The fusion that the groove type of J type and the combination of monolateral V-type is conducive to reduce the welding loading and guarantees seam crossing, simultaneously because J type groove one lateral root section is round and smooth, in implementing welding process, can make welding gun emphasis fusing double V-groove root area, be conducive to like this guarantee welding penetration, reduce the welding shortcoming, enhance productivity.
Claims (2)
1. banjo fixing butt jointing structure that assembling precision is high, it is characterized in that: the butt end of a workpiece in two workpiece that connect is processed with spacer tube, and it is integrally welded that another workpiece is enclosed within the spacer tube outer wall.
2. the high banjo fixing butt jointing structure of a kind of assembling precision according to claim 1 is characterized in that: the groove that two workpiece that connect form is the combining form of J type and monolateral V-type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267676 CN202701619U (en) | 2012-06-08 | 2012-06-08 | Butt joint structure with high assembling precision |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220267676 CN202701619U (en) | 2012-06-08 | 2012-06-08 | Butt joint structure with high assembling precision |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202701619U true CN202701619U (en) | 2013-01-30 |
Family
ID=47581959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220267676 Expired - Fee Related CN202701619U (en) | 2012-06-08 | 2012-06-08 | Butt joint structure with high assembling precision |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202701619U (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155674A (en) * | 2013-07-25 | 2015-12-16 | 浙江精工钢结构集团有限公司 | Equal-strength connecting joint and equal-strength connecting method for components and plates made of different materials |
| CN106825972A (en) * | 2017-02-24 | 2017-06-13 | 江阴中南重工有限公司 | A kind of welding method of pipe fitting |
| CN107335966A (en) * | 2017-09-06 | 2017-11-10 | 中国五冶集团有限公司 | A kind of method that steel sleeve is set in steel pipe |
| CN108465918A (en) * | 2018-06-01 | 2018-08-31 | 江阴市三和重工钢制品有限公司 | The butt-joint process of different wall thickness steel pipe |
| CN108788508A (en) * | 2018-07-27 | 2018-11-13 | 海洋石油工程股份有限公司 | The mouth structure of Deep Water Steel catenary riser welding |
| CN110064813A (en) * | 2019-05-29 | 2019-07-30 | 湖北三江航天江北机械工程有限公司 | The welding method of airborne pencil rocket shell |
-
2012
- 2012-06-08 CN CN 201220267676 patent/CN202701619U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105155674A (en) * | 2013-07-25 | 2015-12-16 | 浙江精工钢结构集团有限公司 | Equal-strength connecting joint and equal-strength connecting method for components and plates made of different materials |
| CN105155674B (en) * | 2013-07-25 | 2017-12-01 | 浙江精工钢结构集团有限公司 | Strong ties node and its methods such as a kind of unlike material component sheet material |
| CN106825972A (en) * | 2017-02-24 | 2017-06-13 | 江阴中南重工有限公司 | A kind of welding method of pipe fitting |
| CN107335966A (en) * | 2017-09-06 | 2017-11-10 | 中国五冶集团有限公司 | A kind of method that steel sleeve is set in steel pipe |
| CN108465918A (en) * | 2018-06-01 | 2018-08-31 | 江阴市三和重工钢制品有限公司 | The butt-joint process of different wall thickness steel pipe |
| CN108788508A (en) * | 2018-07-27 | 2018-11-13 | 海洋石油工程股份有限公司 | The mouth structure of Deep Water Steel catenary riser welding |
| CN110064813A (en) * | 2019-05-29 | 2019-07-30 | 湖北三江航天江北机械工程有限公司 | The welding method of airborne pencil rocket shell |
| CN110064813B (en) * | 2019-05-29 | 2021-05-07 | 湖北三江航天江北机械工程有限公司 | Welding method for airborne small rocket shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130130 Termination date: 20180608 |