CN104759773A - Tyre crane portal frame welding method - Google Patents
Tyre crane portal frame welding method Download PDFInfo
- Publication number
- CN104759773A CN104759773A CN201510180014.0A CN201510180014A CN104759773A CN 104759773 A CN104759773 A CN 104759773A CN 201510180014 A CN201510180014 A CN 201510180014A CN 104759773 A CN104759773 A CN 104759773A
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- welder
- supporting leg
- welding
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Classifications
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- 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
- B23K31/00—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups
- B23K31/02—Processes relevant to this subclass, specially adapted for particular articles or purposes, but not covered by only one of the preceding main groups relating to soldering or welding
-
- 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
- B23K2101/00—Articles made by soldering, welding or cutting
- B23K2101/24—Frameworks
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The invention relates to a tyre crane portal frame welding method. According to the method, four supporting legs are welded to a saddle girder, four edges need to be welded on each supporting leg, and both the inner side and the outer side of each edge are welded. The method includes the steps that a gap is detected, and if the gap is excessively large, a ceramic liner is bonded to the outer side; positioning welding is conducted, and the length is 50 mm; formal welding is conducted, and the four supporting legs are welded by four persons at the same time. The method includes the specific steps that the outer sides of the edge a, the edge b, the edge c and the edge d are sequentially welded, the inner sides of all the edges are welded according to the same sequence; all the edges are welded clockwise in the welding process. The tyre crane portal frame welding method has the advantages that four welders weld the four supporting legs at the same time, the welding edges of every two adjacent supporting legs are right symmetrical to each other, and deformation is prevented due to the reasonable welding sequence.
Description
Technical field
The present invention relates to crane field, be specifically related to a kind of tyre crane portal frame welding method.
Background technology
Along with the growth of China's ports container quantity, to the raising that the efficiency of loading and unloading, economic benefit require, and the development of modern science and technology, tyre crane starts to play the part of more and more important role.
Tyre crane portal frame is positioned at top by two and forms for the crossbeam of trolley travelling, four the support supporting legs of crossbeam, the saddle beams of bottom fixed supporting leg, is fixedly connected by welding between saddle beam and supporting leg; In general, tyre crane height and span are all at tens of rice, and deadweight is larger; For a 40T rubbertyred container gantry crane, maximum height that this crane hanger is liftoff is 18.20m, large beam span 23.47m; After supporting leg has welded with saddle beam, by the cause influence such as deadweight, welding residual stress of portal frame, portal frame may produce relatively large deviation and distortion.
Therefore, a kind of reasonably welding procedure operation of research and development is still important.
Summary of the invention
The technical problem to be solved in the present invention is to provide a kind of tyre crane portal frame welding method, prevents portal frame to be out of shape.
For solving the problems of the technologies described above, technical scheme of the present invention is: a kind of tyre crane portal frame welding method, and its innovative point is:
When saddle beam and supporting leg erection welding, gap is within 0 ~ 5mm, if excesssive gap, welds after ceramic substrate is pasted in outside;
During welding, four supporting legs are divided into four people to carry out welding simultaneously, be X-axis overlooking direction with long axis direction, short-axis direction is that Y-axis sets up rectangular coordinate system, the supporting leg number consecutively being positioned at this first, second, third and fourth quadrant of coordinate system is supporting leg a, supporting leg b, supporting leg c, supporting leg d, the welding personnel number consecutively of corresponding supporting leg is welder a, welder b, welder c, welder d, all supporting legs are all having 4 limits needing to weld with saddle beam contact position, and all there are inside and outside both sides on every bar limit; First weld the outside on every bar limit, concrete welding sequence is as follows:
The limit away from X-axis of supporting leg is responsible in step a, welder a and welder d welding separately, and welder b and welder c welds the limit of the close X-axis being responsible for supporting leg separately;
The limit of the close X-axis of supporting leg is responsible in step b, welder a and welder d welding separately, and welder b and welder c welds the limit away from X-axis of being responsible for supporting leg separately;
The limit away from Y-axis of supporting leg is responsible in step c, welder a and welder b welding separately, and welder c and welder d welds the limit of the close Y-axis being responsible for supporting leg separately;
Steps d, welder a and welder b welds the limit of the close Y-axis being responsible for supporting leg separately, and welder c and welder d welds the limit away from Y-axis of being responsible for supporting leg separately;
After being soldered the outside on each supporting leg d bar limit, continue welding inner side, concrete welding sequence is constant.
Further, during welding, every bar limit is welded all in a clockwise direction.
Further, weldering is positioned, weld length 50mm before formal welding.
The invention has the advantages that: 1., in tyre crane portal frame welding method of the present invention, 4 welders weld 4 supporting legs simultaneously, when adjacent supporting leg welds, the limit of welding is just in time symmetrical, and this rational welding sequence prevents the generation of distortion; 2. ensure the size in supporting leg and saddle beam gap before welding, interpolation ceramic substrate bigger than normal is welded, more accurately.
Accompanying drawing explanation
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail.
Fig. 1 is the welding sequence schematic diagram of tyre crane portal frame welding method of the present invention.
Detailed description of the invention
The invention discloses a kind of tyre crane portal frame welding method, as shown in Figure 1, portal frame comprise two be positioned at top for the crossbeam 1 of trolley travelling, support four supporting legs 2 of crossbeam 1, and be positioned at the saddle beam 3 of fixed supporting leg 2 of bottom; Need four supporting legs 2 to be welded on saddle beam 3 during welding, every bar supporting leg 2 contacts with saddle beam 3 all four limits, and each limit all needs to weld inside and outside both sides.
When saddle beam 3 and supporting leg 2 erection welding, gap is within 0 ~ 5mm, if excesssive gap, welds after ceramic substrate is pasted in outside; Weldering is positioned, weld length 50mm before formal welding.
During welding, four supporting legs are divided into four personal responsibilities, be X-axis overlooking direction with long axis direction, short-axis direction is that Y-axis sets up rectangular coordinate system, the supporting leg number consecutively being positioned at this first, second, third and fourth quadrant of coordinate system is supporting leg a, supporting leg b, supporting leg c, supporting leg d, the welding personnel number consecutively of corresponding supporting leg is welder a, welder b, welder c, welder d, all supporting legs are all having 4 limits needing to weld with saddle beam contact position, and all there are inside and outside both sides on every bar limit; First weld the outside on every bar limit, as shown in Figure 1, every bar supporting leg is according to the welding simultaneously of the upper order of 1,2,3,4 of figure, and during welding, every bar limit is welded all in a clockwise direction, and concrete welding sequence is as follows:
The first step, welder a and welder d welds the limit away from X-axis of being responsible for supporting leg separately, and welder b and welder c welds the limit of the close X-axis being responsible for supporting leg separately;
Second step, welder a and welder d welds the limit of the close X-axis being responsible for supporting leg separately, and welder b and welder c welds the limit away from X-axis of being responsible for supporting leg separately;
3rd step, welder a and welder b welds the limit away from Y-axis of being responsible for supporting leg separately, and welder c and welder d welds the limit of the close Y-axis being responsible for supporting leg separately;
4th step, welder a and welder b welds the limit of the close Y-axis being responsible for supporting leg separately, and welder c and welder d welds the limit away from Y-axis of being responsible for supporting leg separately;
After being soldered the outside on each supporting leg d bar limit, continue welding inner side, concrete welding sequence is constant.
The technical staff of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and description just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications, and these changes and improvements all fall in the claimed scope of the invention.Application claims protection domain is defined by appending claims and equivalent thereof.
Claims (3)
1. a tyre crane portal frame welding method, is characterized in that:
When saddle beam and supporting leg erection welding, guarantee that gap is within 0 ~ 5mm, if excesssive gap, weld after ceramic substrate is pasted in outside;
During welding, four supporting legs are divided into four people to carry out welding simultaneously, be X-axis overlooking direction with long axis direction, short-axis direction is that Y-axis sets up rectangular coordinate system, the supporting leg number consecutively being positioned at this first, second, third and fourth quadrant of coordinate system is supporting leg a, supporting leg b, supporting leg c, supporting leg d, the welding personnel number consecutively of corresponding supporting leg is welder a, welder b, welder c, welder d, all supporting legs are all having 4 limits needing to weld with saddle beam contact position, and all there are inside and outside both sides on every bar limit; First weld the outside on every bar limit, concrete welding sequence is as follows:
The limit away from X-axis of supporting leg is responsible in step a, welder a and welder d welding separately, and welder b and welder c welds the limit of the close X-axis being responsible for supporting leg separately;
The limit of the close X-axis of supporting leg is responsible in step b, welder a and welder d welding separately, and welder b and welder c welds the limit away from X-axis of being responsible for supporting leg separately;
The limit away from Y-axis of supporting leg is responsible in step c, welder a and welder b welding separately, and welder c and welder d welds the limit of the close Y-axis being responsible for supporting leg separately;
Steps d, welder a and welder b welds the limit of the close Y-axis being responsible for supporting leg separately, and welder c and welder d welds the limit away from Y-axis of being responsible for supporting leg separately;
After being soldered the outside on each supporting leg d bar limit, continue welding inner side, concrete welding sequence is constant.
2. tyre crane portal frame welding method according to claim 1, is characterized in that: during welding, every bar limit is welded all in a clockwise direction.
3. tyre crane portal frame welding method according to claim 1, is characterized in that: position weldering, weld length 50mm before formal welding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180014.0A CN104759773B (en) | 2015-04-16 | 2015-04-16 | A kind of tyre crane portal frame welding method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510180014.0A CN104759773B (en) | 2015-04-16 | 2015-04-16 | A kind of tyre crane portal frame welding method |
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| CN104759773A true CN104759773A (en) | 2015-07-08 |
| CN104759773B CN104759773B (en) | 2016-11-02 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759775A (en) * | 2015-04-16 | 2015-07-08 | 上海振华重工集团（南通）有限公司 | Tyre crane portal frame welding method |
| CN105108367A (en) * | 2015-09-21 | 2015-12-02 | 上海振华重工集团（南通）有限公司 | Tire crane prewelding technology |
| CN107855674A (en) * | 2017-07-21 | 2018-03-30 | 南通振华重型装备制造有限公司 | A kind of track crane portal frame general assembly welding procedure |
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2015
- 2015-04-16 CN CN201510180014.0A patent/CN104759773B/en active Active
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| US20050172602A1 (en) * | 2004-01-14 | 2005-08-11 | Cecil Scott | Method and apparatus for hay rake |
| EP1884605A1 (en) * | 2006-08-03 | 2008-02-06 | Prolyte Beheer B.V. | Truss |
| CN101648680A (en) * | 2009-07-20 | 2010-02-17 | 南通振华重型装备制造有限公司 | Unit assembling method of large-size gantry crane |
| CN101863422A (en) * | 2010-04-29 | 2010-10-20 | 郑州市华中建机有限公司 | Rubber-tyred gantry crane with suspension crane and construction method thereof |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104759775A (en) * | 2015-04-16 | 2015-07-08 | 上海振华重工集团（南通）有限公司 | Tyre crane portal frame welding method |
| CN105108367A (en) * | 2015-09-21 | 2015-12-02 | 上海振华重工集团（南通）有限公司 | Tire crane prewelding technology |
| CN107855674A (en) * | 2017-07-21 | 2018-03-30 | 南通振华重型装备制造有限公司 | A kind of track crane portal frame general assembly welding procedure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN104759773B (en) | 2016-11-02 |
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Effective date of registration: 20170313 Address after: The farm in Jiangsu province Nantong City Development Zone 226000 Riverview Road No. 1 Patentee after: Nantong Zhenhua Heavy Equipment Manufacturing Co., Ltd. Address before: 226000 Jiangsu Province, Nantong Development Zone, Zhenhua Road No. 1 Patentee before: Shanghai Zhenhua Heavy Industry Group (Nantong) Co., Ltd. |