CN217071087U - Bridge crane girder fracture is in line welding set - Google Patents
Bridge crane girder fracture is in line welding set Download PDFInfo
- Publication number
- CN217071087U CN217071087U CN202220933551.3U CN202220933551U CN217071087U CN 217071087 U CN217071087 U CN 217071087U CN 202220933551 U CN202220933551 U CN 202220933551U CN 217071087 U CN217071087 U CN 217071087U
- Authority
- CN
- China
- Prior art keywords
- welding
- platform
- bridge crane
- supporting platform
- equipment
- 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.)
- Active
Links
Images
Landscapes
- Butt Welding And Welding Of Specific Article (AREA)
Abstract
The utility model discloses a bridge crane girder fracture is in line welding set, including the whole frock of structure, the whole frock of structure is including being used for hanging the support body that hangs on the girder, it is equipped with first from top to bottom in proper order to hang the support body bottom, two supporting platform, it is provided with respectively with first to hang the outside both sides of support body, two communicating right side platforms of supporting platform and left side platform, it is provided with right ladder and left ladder respectively to hang between support body top and right side platform and the left side platform, be provided with welding equipment on the platform of right side, be provided with two at least jacking equipment on the first supporting platform. The utility model relates to a novelty, it is rational in infrastructure, it is convenient to draw materials and make, and it hangs on the girder through the whole frock of structure, solves and adopts cage, scaffold frame to place all inconvenient difficulties in implementing welding and equipment on the girder, cooperates its on-line welding method, effectively accomplishes the welding restoration to girder bottom fatigue crack, has cross wind production gas pocket welding defect when preventing to make a bottom welding.
Description
Technical Field
The utility model belongs to the technical field of the welding, a bridge crane girder fracture is in line welding set is related to.
Background
The bridge frame is a basic component of a bridge crane, consists of a main beam, an end beam and the like, and is also called a cart. The main beam span frame is arranged above the workshop, the two ends of the main beam span frame are connected with end beams, and the outer side of the main beam is provided with a walking platform and a safety railing. The bridge frame is provided with a cart moving mechanism, an electric box, a hoisting mechanism, a cart running track and an auxiliary slide frame. One end of the bridge frame is provided with a cab, and the other end is provided with a main slide wire leading in a power supply. The main beam and the end beam on the bridge frame are made by cutting and welding low alloy steel and bear various heavy objects lifted by the cart moving mechanism for a long time. Because the bridge crane is special hoisting equipment, after various heavy objects are hoisted for a long time, fatigue cracks 11 (shown in figure 1) can be found at the lower end of the main beam 1 in the regular inspection process, if the fatigue cracks are not processed in time after appearing, major equipment accidents can be caused along with the expansion of the cracks, if the main beam is integrally replaced, a large amount of cost is wasted, the purchase period is long, the production rhythm is inevitably influenced, and if a transport manufacturer repairs, the splitting and transportation processes are complex, time and labor are wasted. Considering that the main beam is made of low alloy steel 16Mn through cutting, manufacturing and welding, the material has better weldability, but the following problems exist during welding: (1) welding defects are easy to generate, cold cracks and hot cracks are almost impossible to generate in normal welding, but air hole welding defects are easy to generate in a workshop due to the fact that the span of a main beam is large, the effective sectional area of a welding line is reduced due to the air holes, and the tensile strength is influenced; (2) because of high-altitude operation, at the bottom of the main beam of the bridge crane, if a suspension cage or a scaffold is adopted, the operation of welders and the use of welding equipment are inconvenient.
SUMMERY OF THE UTILITY MODEL
To the bridge crane girder fracture that exists in the background art be in the technical problem of line welding repair difficulty, the utility model provides a bridge crane girder fracture is in line welding set.
The utility model provides a technical problem's technical scheme as follows:
the utility model relates to a bridge crane girder fracture is in line welding set, it includes the whole frock of structure, the whole frock of structure is including being used for hanging the support body that hangs on the girder, it has set gradually first supporting platform and second supporting platform from top to bottom to hang the support body bottom, it is provided with respectively with communicating right side platform and the left side platform of first supporting platform and second supporting platform to hang the outside both sides of support body, it is provided with right ladder and left ladder respectively to hang between support body top and right side platform and the left side platform, be provided with welding equipment on the platform of right side, be provided with two at least jacking equipment on the first supporting platform.
Further, the right ladder and the left ladder are both simple elevators.
Further, the jacking equipment is hydraulic jacking equipment.
Further, the welding equipment is a welding machine combining digital controlled inverse manual shielded metal arc welding and argon arc welding with models of HT400D or HT 500D.
Further, the jacking equipment is a 5T hydraulic jack.
The utility model discloses in a bridge crane girder fracture is in line welding method, through above-mentioned technical scheme bridge crane girder fracture be in line welding set and weld the fatigue crack of girder lower part and repair, at first hang the whole frock of structure and install the fatigue crack department at the girder to install first supporting platform and second supporting platform in proper order, then set up welding equipment and jacking equipment again, then implement the welding, its step is as follows:
step one, preparing before welding;
1.1), welding equipment: digitally controlling inverse manual welding rod electric arc welding and argon arc welding and using a direct current welding machine, wherein the welding rod adopts an E5015 welding rod;
1.2), heating device: h01-20 baking gun;
1.3), auxiliary facilities: angle grinder, file, hammer, flat shovel, mask, sample plate, thermodetector, magnifier, and heat insulation cotton;
1.4), weldment material: bulk 16Mn low alloy steel;
1.5) and the requirements of surfacing before welding are as follows: processing and cleaning the surface of the crack groove by a manual angle grinder to remove rust, grease and water and preheating to 100 ℃;
1.6), welding position: welding the integral upward seam;
1.7), welding requirements: all welding layers must be free of any welding defects and fused to the base material;
1.8), welding process parameters: setting welding parameters according to welding equipment, welding materials, weldment materials and welding requirements;
step two, welding implementation;
2.1) cleaning the surface of the crack by a manual angle grinder, preparing an inverted V-shaped crack groove, respectively installing and supporting two jacking devices at two ends of the crack groove, preheating the crack groove to 100 ℃, adding a convection baffle at the position of the crack groove, then adopting digital control inverse manual welding rod arc welding and argon arc welding, selecting an E5015 welding rod with the diameter of 3.2mm by a direct current welding machine to perform first-layer bottoming single-side welding and double-side forming welding, adopting a straight-line left-hand welding method, welding a front welding seam at the bottom of the penetration and well fusing with base metals at two sides, and welding a filling layer and a cover layer after confirming that the surface has no welding defects;
2.2), during filling and capping welding, first layer filling layer welding current is greater than the prime coat welding current partially, capping layer surface is higher than the base metal body and both sides can not produce the undercut with between the base metal, after whole welding is accomplished, adopt the cotton whole welding seam that covers of heat preservation recooling to room temperature, after confirming through detecting to detect a flaw and detecting to have no defect, utilize manual angle mill to carry out crack groove welding seam processing and grind, guarantee that the welding seam surface is on a parallel with the base metal, and adopt the model of the accord with of making earlier to compare, confirm qualified back, put into service.
Further, the surfacing layer is subjected to surfacing by using an E5015 welding rod with the diameter of 3.2mm, the welding current is 80-130A, the arc voltage is 23 +/-1V, and the welding speed is 15 +/-1 cm/min.
Further, when the first layer of backing single-side welding and double-side forming welding are carried out, the welding current is controlled to be 90A.
Further, the welding current during filling and capping is 100-120A.
Compared with the prior art, bridge crane girder fracture is in line welding set modern design, rational in infrastructure, it is convenient to draw materials and make, it hangs on the girder through the whole frock of structure, solve and adopt cage, scaffold frame on the girder and place equal inconvenient difficulty at implementation welding and equipment, this bridge crane girder fracture is in line welding set cooperation on-line welding method, effectively accomplish the welding restoration to girder bottom fatigue crack, there is cross wind production gas pocket welding defect when preventing to set a bottom welding.
Drawings
Fig. 1 is a schematic structural view of a middle main beam of the present invention;
FIG. 2 is a schematic structural view of a device for welding a cracking position line of a main beam of a middle bridge crane of the present invention;
FIG. 3 is a front view structural diagram of the line welding device for the cracking position of the main beam of the middle bridge crane of the utility model;
FIG. 4 is an explosion diagram of the bridge crane girder cracking in-line welding device of the present invention;
FIG. 5 is a schematic view of the welding sequence of the medium crack groove of the present invention;
in the figure: 1. a main beam; 11. a crack groove; 2. integral tooling of the structural part; 21. hanging the frame body; 22. a right side platform; 23. a left side platform; 24. a right ladder; 25. a left ladder; 3. a first support platform; 4. a second support platform; 5. welding equipment; 6. jacking equipment.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer", "lateral", "longitudinal", and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of an object to be described is changed, the relative positional relationships are also changed accordingly.
Example 1:
as shown in fig. 1-4, the utility model relates to a bridge crane girder fracture is in line welding set, it includes the whole frock 2 of structure, the whole frock 2 of structure is including being used for hanging the support body 21 that hangs on the girder, it is "Jiong" form to hang support body 21, first supporting platform 3 and second supporting platform 4 have set gradually about its bottom, it is provided with respectively with first supporting platform 3 and the communicating right side platform 22 of second supporting platform 4 and left side platform 23 to hang the outside both sides of support body 21, it is provided with right ladder 24 and left ladder 25 respectively to hang between support body 21 top and right side platform 22 and the left side platform 23, be provided with welding equipment 5 on the right side platform 22, be provided with two at least jacking equipment 6 on the first supporting platform 3. In the embodiment, the structural member integral tool 2 is formed by processing and welding a 20mm steel plate, a 100mm channel steel, a phi 40mm round steel pipe and the like; the right ladder 24 and the left ladder 25 are respectively used for workers to go down to the right side platform 22 and the left side platform 23 from the top of the hanging frame body 21, and can respectively enter the first supporting platform 3 and the second supporting platform 4 through the right side platform 22 and the left side platform 23, and further, the left ladder 25 and the right ladder 24 are simple elevators; the first supporting platform 3 and the second supporting platform 4 are both made of 20mm steel plates and are used for supporting operators to weld and repair fatigue cracks of the main beam 1 and placing the jacking equipment 6 and other related equipment; the jacking equipment 6 is usually hydraulic jacking equipment, such as a 5T hydraulic jack and the like, and is used for supporting two ends of the fatigue crack, so that the main beam is not stressed during welding, and the extension deformation of the crack under stress is prevented; in this embodiment, the welding device 5 may be a welder with the type HT400D or HT500D digitally controlled inverse manual shielded metal arc welding and argon arc welding.
During the application, hang the support body 21 of the whole frock 2 of structure earlier and install in the fatigue crack department top of girder 1, then install first supporting platform 3 and second supporting platform 4 in proper order, set up jacking device 6 and support at the both ends of fatigue crack on first supporting platform 3, set up welding equipment 5 on right side platform 22, operating personnel implements the single face of fatigue crack department on second supporting platform 4 and weld the face up.
Example 2:
as shown in fig. 1 to 5, in a method for welding a crack of a main beam of a bridge crane on a line, a fatigue crack at the lower part of the main beam 1 is welded and repaired by using a device for welding a crack of a main beam of a bridge crane in an embodiment 1, a structural member integral tool 2 is firstly installed at the fatigue crack of the main beam 1 in a hanging manner, a first supporting platform 3 and a second supporting platform 4 are sequentially installed, then a welding device 5 and a jacking device 6 are arranged, and welding is performed, and the method comprises the following steps:
step one, preparing before welding;
1.1), welding equipment: the model is HT400D or HT500D digital control inversion type manual welding rod electric arc welding and argon arc welding are combined by using a direct current welding machine, and the welding rod adopts an E5015 welding rod with the diameter of phi 3.2 mm;
1.2), heating device: h01-20 baking gun;
1.3), auxiliary facilities: angle grinder, file, hammer, flat shovel, mask, sample plate, thermodetector, magnifier, and heat insulation cotton;
1.4), weldment material: bulk 16Mn low alloy steel;
1.5) and the requirements of surfacing before welding are as follows: processing and cleaning the surface of the crack groove by a manual angle grinder to remove rust, grease and water and preheating to 100 ℃;
1.6), welding position: welding the integral upward seam;
1.7), welding requirements: all welding layers must be free of any welding defects and fused to the base material;
1.8), welding process parameters: setting welding parameters according to welding equipment, welding materials, weldment materials and welding requirements;
welding process parameters
Step two, welding implementation;
2.1) cleaning the crack surface by a manual angle grinder, preparing an inverted V-shaped crack groove 11, respectively installing and supporting two jacking devices 6 at two ends of the crack groove 11, preheating the crack groove 11 and the periphery thereof to 100 ℃ before welding according to a low alloy steel welding process because a main beam 1 is thick, synchronously detecting the temperature by a thermodetector, adding a convection baffle at the position of the crack groove 11, preventing the bottom layer from generating a pore welding defect due to cross wind during welding, then adopting digital control inversion type manual welding rod electric arc welding and argon arc welding, selecting an E5015 welding rod with the diameter of 3.2mm by a direct current welding machine to carry out first-layer bottoming single-side welding double-side forming welding, preferably adopting a current of 90A, adopting a welding rod conveying strip as a straight-line left-direction welding method, well fusing a front welding line with two side welding lines at the bottom part, and carrying out filling layer and cover surface layer welding after confirming that the surface has no welding defect, the welding sequence of each welding seam is shown in figure 5, wherein the first welding seam is a bottoming seam, the second welding seam, the third welding seam and the fourth welding seam are filling seams, and the fifth welding seam, the sixth welding seam, the VII welding seam and the VIII welding seam are cover surfaces;
2.2), during filling and cover surface welding, the welding current is preferably 100-120A, especially, the welding current of a first filling layer is larger than the welding current of a priming layer to eliminate bottom defects, the surface of the cover surface is higher than a base material body, undercut cannot be generated between two sides of the cover surface and the base material, the situation that the plate is torn due to cracks in the bearing process of the main beam 1 is prevented, after all welding is completed, the welding line is covered by insulating cotton integrally and then cooled to room temperature, after no defect is confirmed through detection and flaw detection, the welding line of a crack groove 11 is processed and ground by a manual angle grinder, the welding line surface is guaranteed to be parallel to the base material, and a sample plate which is manufactured in advance is adopted for comparison, and the welding is put into use after the welding is confirmed to be qualified.
The above is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (5)
1. The utility model provides a bridge crane girder fracture is at line welding set which characterized in that: the integral structural part tool comprises an integral structural part tool (2), the integral structural part tool (2) comprises a hanging frame body (21) used for being hung on a main beam, a first supporting platform (3) and a second supporting platform (4) are sequentially arranged at the bottom of the hanging frame body (21), a right side platform (22) and a left side platform (23) which are communicated with the first supporting platform (3) and the second supporting platform (4) are respectively arranged on the two outer sides of the hanging frame body (21), a right ladder (24) and a left ladder (25) are respectively arranged between the top of the hanging frame body (21) and the right side platform (22) and between the top of the hanging frame body and the left side platform (23), welding equipment (5) is arranged on the right side platform (22), and at least two jacking equipment (6) are arranged on the first supporting platform (3).
2. The bridge crane girder crack on-line welding device of claim 1, characterized in that: the right ladder (24) and the left ladder (25) are both simple elevators.
3. The bridge crane girder crack on-line welding device of claim 1, characterized in that: the jacking equipment (6) is hydraulic jacking equipment.
4. The bridge crane girder crack on-line welding device of claim 3, characterized in that: the jacking equipment (6) is a 5T hydraulic jack.
5. The bridge crane girder crack on-line welding device of claim 1, characterized in that: the welding equipment (5) is a welding machine combining digital control inversion type manual shielded metal arc welding and argon arc welding with the model number of HT400D or HT 500D.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220933551.3U CN217071087U (en) | 2022-04-20 | 2022-04-20 | Bridge crane girder fracture is in line welding set |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220933551.3U CN217071087U (en) | 2022-04-20 | 2022-04-20 | Bridge crane girder fracture is in line welding set |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217071087U true CN217071087U (en) | 2022-07-29 |
Family
ID=82500899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220933551.3U Active CN217071087U (en) | 2022-04-20 | 2022-04-20 | Bridge crane girder fracture is in line welding set |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217071087U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589377A (en) * | 2022-04-20 | 2022-06-07 | 安徽马钢设备检修有限公司 | Bridge crane girder cracking on-line welding device and on-line welding method |
-
2022
- 2022-04-20 CN CN202220933551.3U patent/CN217071087U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114589377A (en) * | 2022-04-20 | 2022-06-07 | 安徽马钢设备检修有限公司 | Bridge crane girder cracking on-line welding device and on-line welding method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105728895B (en) | A kind of Al-alloy parts welding method | |
| CN101856783A (en) | Integral manufacturing and mounting method of large aluminum alloy stock bin | |
| CN217071087U (en) | Bridge crane girder fracture is in line welding set | |
| CN104741744B (en) | Method for welding upright posts of heavy and large Q420B steel construction steel structure | |
| CN111390341A (en) | G L AMA manipulator large arm connecting rod weld fracture online welding device and process | |
| CN111360368A (en) | Online repairing device and process for GLAMA bridge type manipulator box body cross beam cracking | |
| CN109024903B (en) | Hemispherical support joint and manufacturing process thereof | |
| JP5829518B2 (en) | Metallurgical slag pot having a new structure and manufacturing method thereof | |
| CN116475539A (en) | Transverse cracking welding reinforcing device and process for bridge type manipulator beam | |
| CN103495793A (en) | Improved construction method for hoisting and welding large-tonnage cast steel component complex joints | |
| CN110860768B (en) | Welding process for large beam rail bearing beam and square steel rail of track crane | |
| CN206108786U (en) | Boiler furnace maintenance platform of hoisting point is strengthened to aluminium system of adoption | |
| CN114589377A (en) | Bridge crane girder cracking on-line welding device and on-line welding method | |
| CN104759767B (en) | Welding method for flange plate and web plate of heavy-duty Q390D steel crane beam | |
| CN212122019U (en) | Online welding device for weld joint fracture of large arm connecting rod of GLAMA manipulator | |
| CN217394001U (en) | Simple welding device for cracking of large-scale high-voltage motor base lug | |
| CN212122020U (en) | Online prosthetic devices of GLAMA bridge type manipulator box crossbeam fracture | |
| CN210388012U (en) | Welding device for large aluminum forging alloy lifting appliance of high-speed wheel | |
| CN219746823U (en) | Transverse cracking welding reinforcing device for bridge type manipulator beam | |
| CN218575226U (en) | Surface strengthening surfacing device for eccentric shaft of rolling mill | |
| CN206108838U (en) | Boiler furnace maintenance platform and main hoisting point that has location reinforcing structure thereof | |
| CN206111759U (en) | Overhaul platform device in boiler furnace and connecting card board thereof | |
| CN206108785U (en) | Adopt interior platform device that overhauls of boiler furnace of M shape springboard | |
| CN206108788U (en) | Overhaul platform device in boiler furnace and rail support thereof | |
| CN110732751A (en) | welding process method for moving cone lining plate and locking bolt of cone crusher |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |