CN219746823U - Transverse cracking welding reinforcing device for bridge type manipulator beam - Google Patents
Transverse cracking welding reinforcing device for bridge type manipulator beam Download PDFInfo
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- CN219746823U CN219746823U CN202321089818.6U CN202321089818U CN219746823U CN 219746823 U CN219746823 U CN 219746823U CN 202321089818 U CN202321089818 U CN 202321089818U CN 219746823 U CN219746823 U CN 219746823U
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- 238000003466 welding Methods 0.000 title claims abstract description 137
- 230000003014 reinforcing effect Effects 0.000 title claims abstract description 90
- 238000005336 cracking Methods 0.000 title claims abstract description 18
- 229920000742 Cotton Polymers 0.000 claims abstract description 10
- 230000002787 reinforcement Effects 0.000 claims description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 6
- 239000010959 steel Substances 0.000 claims description 6
- 238000012545 processing Methods 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 2
- 238000004321 preservation Methods 0.000 abstract description 7
- 238000012423 maintenance Methods 0.000 abstract description 6
- 239000010410 layer Substances 0.000 description 27
- 238000000034 method Methods 0.000 description 20
- 238000010438 heat treatment Methods 0.000 description 18
- 239000000463 material Substances 0.000 description 13
- 230000007547 defect Effects 0.000 description 10
- 238000004519 manufacturing process Methods 0.000 description 9
- 238000005096 rolling process Methods 0.000 description 5
- LNSPFAOULBTYBI-UHFFFAOYSA-N [O].C#C Chemical group [O].C#C LNSPFAOULBTYBI-UHFFFAOYSA-N 0.000 description 4
- 239000010953 base metal Substances 0.000 description 4
- 238000004140 cleaning Methods 0.000 description 4
- 230000008033 biological extinction Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000011521 glass Substances 0.000 description 3
- 244000137852 Petrea volubilis Species 0.000 description 2
- 238000001514 detection method Methods 0.000 description 2
- 239000011229 interlayer Substances 0.000 description 2
- 241000283073 Equus caballus Species 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 230000035515 penetration Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000037452 priming Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000011179 visual inspection Methods 0.000 description 1
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Abstract
The utility model discloses a transverse crack welding reinforcing device for a bridge manipulator beam, which comprises a structural part box body beam, wherein one side of the structural part box body beam is provided with a transverse crack of the beam, and is characterized in that: the structure comprises a structural member box body beam, wherein a heater is arranged on the other three sides of the structural member box body beam except for one side with transverse beam cracks, heat preservation cotton is covered on the outer side of the heater, a reinforcing support structure is arranged at a position right below the transverse beam cracks on the inner side of the structural member box body beam, the reinforcing support structure is of an integral frame structure and comprises a first reinforcing support rib plate and a second reinforcing support rib plate which are arranged at intervals left and right, and a plurality of connecting reinforcing plates are fixedly arranged between the first reinforcing support rib plate and the second reinforcing support rib plate. The utility model can realize the on-line welding repair of the transverse cracking crack of the bridge manipulator beam, saves the maintenance time, reduces the maintenance cost, reduces the shutdown loss and provides guarantee for reasonable assembly.
Description
Technical Field
The utility model relates to the technical field of welding, in particular to a transverse cracking welding reinforcing device and process for a bridge type manipulator beam.
Background
The equine steel rail transit material science and technology limited company is an important train wheel production base in China, is the largest wheel production enterprise in Asia, is also the only enterprise in China capable of producing the bus wheels with the speed grade of more than 120Km/h, and the research and development of heavy-load wheels reach the international advanced level. At present, two wheel production lines are shared, wherein the three-line annual production capacity of the wheels is 80 ten thousand. The core rolling process flow of the rail transit wheel comprises the following steps: heating steel blank, dephosphorizing the whole surface, preforming the wheel with 60MN, rolling by a rolling mill, clamping by a mobile manipulator, and positioning and forming with 31.5 MN. The fixed bridge manipulator beam spans among the 60MN oil press, the vertical rolling mill and the 31.5MN oil press, and two suspended manipulators continuously clamp semi-finished wheels back and forth on the large structural member box beam in the normal production process and accurately position and convey the semi-finished wheels to various appointed rolling mills, and due to long-time fatigue period operation and overload wheel production, transverse internal and external cracking phenomena (such as transverse beam crack 2 in figure 1) easily occur on the large structural member box beam. When transverse cracks of the cross beam appear, if the transverse cracks are not treated in time, the cracks can be directly expanded, and equipment and personal safety are generated; if the steel is transported to a manufacturer for repair, the disassembly, lifting and transportation time is long, and the normal operation of production is affected; in addition, if new spare parts are customized, the period is long and the cost is high. In order to restore production as soon as possible, welding repair is required to be carried out on the split of the cross beam of the box body of the bridge manipulator from the split.
Disclosure of Invention
Aiming at the problem that transverse cracking repair of a bridge manipulator beam is difficult in the background art, the utility model provides the transverse cracking welding reinforcing device and the process for the bridge manipulator beam, which can realize on-line welding repair of the transverse cracking crack of the bridge manipulator beam, save maintenance time, reduce maintenance cost and stop loss, and provide guarantee for reasonable production.
The technical scheme for solving the technical problems is as follows:
the utility model relates to a transverse cracking welding reinforcing device for a bridge manipulator beam, which comprises a structural part box body beam, wherein one side of the structural part box body beam is provided with a transverse beam crack; the structure comprises a structural member box body beam, wherein a heater is arranged on the other three sides of the structural member box body beam except for one side with transverse beam cracks, heat preservation cotton is covered on the outer side of the heater, a reinforcing support structure is arranged at a position right below the transverse beam cracks on the inner side of the structural member box body beam, the reinforcing support structure is of an integral frame structure and comprises a first reinforcing support rib plate and a second reinforcing support rib plate which are arranged at intervals left and right, and a plurality of connecting reinforcing plates are fixedly arranged between the first reinforcing support rib plate and the second reinforcing support rib plate.
Further, the first reinforcing support rib plate and the second reinforcing support rib plate of the reinforcing support structure are respectively welded and fixed with the inner side of the cross beam of the structural part box body; and the connecting reinforcing plate is vertically welded and fixed with the first reinforcing support rib plate and the second reinforcing support rib plate respectively.
Further, circular holes are formed in the centers of the first reinforcing support rib plate and the second reinforcing support rib plate.
Further, the first reinforcing support rib plate, the second reinforcing support rib plate and the connecting reinforcing plate are all formed by cutting and processing a 20mm thick steel plate.
The utility model relates to a transverse cracking welding reinforcing process of a bridge type manipulator beam, which comprises a structural part box body beam, wherein one side of the structural part box body beam is provided with a transverse beam crack, and the transverse cracking welding reinforcing device of the bridge type manipulator beam is used for carrying out the following steps:
step one, preparing before welding:
1.1 -welding equipment: digitally controlling an inversion type manual direct current welder and reversely connecting;
1.2 Heating, and heat treatment equipment: h01-20 baking gun, 3# welding nozzle, throat hoop, oxygen-acetylene bottle, oxygen-acetylene wind belt, ZWK-180KW heat treatment equipment;
1.3 And welding technical requirements: the single-sided welding and double-sided forming welding technology has no welding defect in the welding joint;
1.4 A weldment material): the material of the cross beam box body is equivalent to national standard Q345;
1.5 -welding material): e5015 electrode;
1.6 -auxiliary facilities): magnifying glass, wire brush, sand paper, movable wrench, pistol drill, straight grinder, angle grinder, wire pliers, hacksaw blade, labor protection article;
1.7 And welding process parameters: setting welding parameters according to welding equipment, welding materials, weldment materials and welding requirements;
step two, welding is carried out;
firstly, drilling crack-stopping holes at two ends of a transverse beam crack of a transverse beam of a box body of a structural member by adopting a pistol drill, then heating and cleaning the transverse beam crack and the periphery of the transverse beam crack by using an H01-20 baking gun, and then processing a V-shaped groove on the transverse beam crack by using a manual angle grinder and a straight grinder; welding and fixing a reinforcing and supporting structure under the transverse crack of the beam at the inner side of the beam of the structural member box body, and sequentially completing wrapping of the heater and covering of heat preservation cotton at the outer side of the beam of the structural member box body; in order to ensure that the bottom welding rod can be penetrated, a ZWK-180KW heat treatment device is used for preheating a cross beam of a box body of the structural member during the first layer welding, then arc extinction strip transportation method is used for carrying out single-sided welding and double-sided forming welding of the first layer of the bottom welding, the welding position is a flat welding operation, the horizontal included angle of the welding rod is 80-90 degrees, and the welding is carried out under small current and short arc; after finishing the welding of the bottom layer and confirming that no welding defects exist, carrying out filling layer welding, wherein more than two layers have larger welding current, adopting a triangular strip conveying method, stopping at two sides, maintaining the temperature between layers, confirming that no welding defects exist after each layer of welding, slightly waiting for the temperature of the whole welding seam of the welding layer to be reduced after the welding height is lower than 1-2mm than that of a base material, and carrying out cover layer welding; the welding current is 10-20% smaller than that of the filling layer during welding of the cover layer, and a crescent strip conveying method is adopted to ensure that the cover weld is fused with two sides of the base metal and smoothly transits the base metal body; after the transverse crack of the beam is repaired, heat treatment equipment ZWK-180KW is adopted to perform heat treatment at the constant temperature of 650 ℃ for 1 hour on two sides of the welding seam, after cooling to room temperature, after detection and confirmation that the whole welding seam has no welding defect, a manual angle grinder is adopted to process the surface of the welding seam to repair and smooth, and the welding seam is put into use.
Further, the welding equipment is a manual direct current welder with model HT400D or HT500D digital control inversion type.
Further, during the bottom layer welding, an E5015 welding rod with the diameter of 3.2mm is adopted as the welding rod, the welding current is 90-120A, the arc voltage is 24+/-1V, and the welding speed is 17+/-1 cm/min; during filling and cover layer welding, an E5015 welding rod with the diameter of 4.0mm is adopted as the welding rod, the welding current is 130-180A, the arc voltage is 24+/-1V, and the welding speed is 17+/-1 cm/min.
Compared with the prior art, the transverse cracking welding reinforcing device for the bridge manipulator beam has a simple structure, and the reinforcing support structure is welded on the inner side of the beam of the structural part box body, so that the requirement of local reinforcing welding repair of transverse cracks of the beam is met, the stability of an integral frame can be formed, the welding reinforcing device is matched with the repairing process of the welding reinforcing device, the welding quality is effectively ensured, the maintenance time is saved, the maintenance cost is reduced, the shutdown loss is reduced, and the guarantee is provided for reasonable assembly.
Drawings
FIG. 1 is a schematic view of a bridge manipulator beam transverse crack weld reinforcement apparatus of the present utility model;
FIG. 2 is a schematic cross-sectional view of a bridge manipulator beam transverse crack weld reinforcement apparatus of the present utility model;
in the figure: 1. a structural member box cross beam; 11. the mechanical arm moves the fixed guide rail; 2. transverse cracks of the cross beam; 3. reinforcing the support structure; 31. a first reinforcing support gusset; 32. the second reinforcing and supporting rib plate; 33. connecting a reinforcing plate; 4. a heater; 5. and (5) heat preservation cotton.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model. Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. As used in the specification and claims of the present published patent application, "upper", "lower", "left", "right", "front", "rear", etc. are used only to indicate relative positional relationships, which change when the absolute position of the object to be described changes; the terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The present utility model is not described in detail in the present application, and is well known to those skilled in the art.
Example 1:
as shown in fig. 1 to 2, the transverse cracking welding reinforcing device for the bridge manipulator beam of the utility model comprises a structural member box beam 1, wherein one side of the structural member box beam 1 is provided with a transverse beam crack 2, and is characterized in that: the other three sides of the cross beam 1 of the structural member box body, except the side with the cross beam transverse crack 2, are provided with heaters 4, heat preservation cotton 5 is covered on the outer sides of the heaters 4, the heaters 4 are used for preheating and post-welding heat treatment of the cross beam 1 of the structural member when the cross beam transverse crack 2 is locally welded and repaired, and the heat preservation cotton 5 is matched with the heaters 4 for use, so that the temperature is uniformly heated and cooled, and the welding repair quality is further ensured; the reinforcing support structure 3 is arranged at the position right below the transverse beam crack 2 on the inner side of the structural member box body beam 1, the reinforcing support structure 3 is of an integral frame structure, the reinforcing support structure comprises a first reinforcing support rib plate 31 and a second reinforcing support rib plate 32 which are arranged at left and right intervals, a plurality of connecting reinforcing plates 33 are vertically welded between the first reinforcing support rib plate 31 and the second reinforcing support rib plate 32, and the first reinforcing support rib plate 31, the second reinforcing support rib plate 32 and the connecting reinforcing plates 33 can be formed by cutting and processing 20mm thick steel plates.
In this embodiment, the first reinforcing support rib plate 31 and the second reinforcing support rib plate 32 of the reinforcing support structure 3 are welded and fixed with the inner side of the structural member box beam 1, and form a whole with the structural member box beam 1, so that the requirement of local reinforcement of the transverse crack 2 of the beam is met, and the stability of the whole structure can be improved.
In addition, the centers of the first reinforcing and supporting rib plates 31 and the second reinforcing and supporting rib plates 32 are provided with circular holes, so that the weight of the reinforcing and supporting structure 3 can be reduced as much as possible under the condition of ensuring the strength.
When the heat-insulating cotton heat-insulating box is used, transverse cracks 2 on the upper plane of a cross beam 1 of a structural member box body are firstly cut into single-sided V-shaped grooves by adopting an angle grinder, then a first reinforcing support rib plate 31, a second reinforcing support rib plate 32 and a connecting reinforcing plate 33 are welded and fixed into a reinforcing support structure 3 of an integral frame, the reinforcing support structure is then installed on the inner side of the cross beam 1 of the structural member box body, the position of the reinforcing support rib plate is vertically arranged under the transverse cracks 2 of the cross beam, then the transverse cracks 2 of the cross beam are welded and fixed, finally, the two sides and the bottom of the cross beam 1 of the structural member box body are wrapped by a heater 4, heat-insulating cotton 5 is also covered on the outer side of the heater 4, and then the transverse cracks 2 of the cross beam can be heated and welded.
Example 2:
the utility model relates to a transverse cracking welding reinforcement process of a bridge type manipulator beam, which comprises a structural part box body beam 1, wherein one side of the structural part box body beam 1 is provided with a beam transverse crack 2, and the transverse cracking welding reinforcement process is carried out by the transverse cracking welding reinforcement device of the bridge type manipulator beam in the embodiment 1, and comprises the following steps:
step one, preparing before welding:
1.1 -welding equipment: model HT400D or HT500D digital control inversion type manual direct current welder and reverse connection method;
1.2 Heating, and heat treatment equipment: h01-20 baking gun, 3# welding nozzle, throat hoop, oxygen-acetylene bottle, oxygen-acetylene wind belt, ZWK-180KW heat treatment equipment;
1.3 And welding technical requirements: the single-sided welding and double-sided forming welding technology has no welding defect in the welding joint;
1.4 A weldment material): the material of the cross beam box body is equivalent to national standard Q345;
1.5 -welding material): e5015 electrode;
1.6 -auxiliary facilities): magnifying glass, wire brush, sand paper, movable wrench, pistol drill, straight grinder, angle grinder, wire pliers, hacksaw blade, labor protection article;
1.7 And welding process parameters: setting welding parameters according to welding equipment, welding materials, weldment materials and welding requirements;
manual welding rod arc welding
Step two, welding is carried out;
the process route is as follows: the method comprises the steps of drilling crack-stopping holes at two ends of transverse cracks of a box body beam by adopting a gun drill, preparing V grooves by adopting an angle grinder, welding and fixing inner side support structural member rib plates, preheating, single-sided welding and double-sided forming welding of a bottom layer, cleaning the surface of a welding line, detecting defects, controlling interlayer temperature, welding a filling layer, cleaning the surface of the welding line, detecting defects, controlling interlayer temperature, smoothly welding a cover layer, performing heat treatment after welding, cooling room temperature, detecting the welding line, and delivering the welding line.
Firstly, drilling crack stopping holes at two ends of a transverse beam crack 2 of a transverse beam 1 of a structural member box body by adopting a gun drill to prevent the original crack from continuously expanding in the heating or welding process before welding, then heating and cleaning the transverse beam crack 2 and a 40-50mm area around the transverse beam crack 2 by using an H01-20 baking gun, and then processing a V-shaped groove on the transverse beam crack 2 by using a manual angle grinder and a straight grinder; welding and fixing a reinforcing and supporting structure 3 under the transverse beam crack 2 on the inner side of the beam 1 of the structural member box body, and sequentially finishing wrapping of the heater 4 and covering of the heat preservation cotton 5 on the outer side of the beam 1 of the structural member box body; the box body beam is made of Q345, the wall thickness is 12-20 mm, the penetration of a backing welding rod is ensured, a first layer of welding is preheated by ZWK-180KW heat treatment equipment, then arc extinction and strip transportation are adopted for backing first layer single-sided welding and double-sided forming welding, the arc extinction method can control the welding gap of a groove, a welding melting hole penetrates through the bottom of a crack, the single-sided welding and double-sided forming quality is ensured, the welding position is flat welding operation, the horizontal included angle of the welding rod is 80-90 degrees, and small current and short arc welding are carried out; after finishing the welding of the priming layer, after confirming that no welding defect exists through visual inspection or detection of a magnifying glass which is 10 times, carrying out filling layer welding, wherein more than two layers of welding current are slightly larger, adopting a triangular strip conveying method, stopping at two sides, maintaining the temperature between layers, confirming that no welding defect exists after each layer of welding is detected, and after the welding height is lower than 1-2mm of a base material, slightly waiting for the temperature of the whole welding seam of the welding layer to be reduced, and carrying out cover layer welding; the welding current is 10-20% smaller than that of the filling layer during welding of the cover layer, and a crescent strip conveying method is adopted to ensure that the cover weld is fused with two sides of the base metal and smoothly transits the base metal body; after the transverse crack 2 of the beam is repaired, heat treatment equipment of ZWK-180KW is adopted to perform heat treatment at the constant temperature of 650 ℃ for 1 hour on two sides of the welding seam, after cooling to room temperature, after detecting and confirming that the whole welding seam has no welding defect, a manual angle grinder is adopted to process the surface of the welding seam to repair and smooth, and the welding seam is delivered for use, and through the operation inspection of the two manipulators which are hung in a periodic way, the using effect of the whole box body beam of the bridge manipulator is achieved.
Claims (4)
1. The utility model provides a bridge type manipulator crossbeam transverse crack welding reinforcing apparatus, includes structure box crossbeam (1), and structure box crossbeam (1) one side has crossbeam transverse crack (2), its characterized in that: the novel heat insulation structure is characterized in that a heater (4) is arranged on the other three sides of the structural member box body cross beam (1) except one side with the cross beam transverse crack (2), heat insulation cotton (5) is covered on the outer side of the heater (4), a reinforcing support structure (3) is arranged at a position right below the cross beam transverse crack (2) on the inner side of the structural member box body cross beam (1), the reinforcing support structure (3) is of an integral frame structure, the reinforcing support structure comprises a first reinforcing support rib plate (31) and a second reinforcing support rib plate (32) which are arranged at left and right intervals, and a plurality of connecting reinforcing plates (33) are fixedly arranged between the first reinforcing support rib plate (31) and the second reinforcing support rib plate (32).
2. The bridge manipulator beam transverse cracking welding reinforcing device according to claim 1, wherein: the first reinforcing and supporting rib plates (31) and the second reinforcing and supporting rib plates (32) of the reinforcing and supporting structure (3) are respectively welded and fixed with the inner side of the structural part box body cross beam (1); the connecting reinforcing plate (33) is vertically welded and fixed with the first reinforcing and supporting rib plate (31) and the second reinforcing and supporting rib plate (32) respectively.
3. The bridge manipulator beam transverse cracking welding reinforcing device according to claim 1, wherein: circular holes are formed in the centers of the first reinforcing and supporting rib plates (31) and the second reinforcing and supporting rib plates (32).
4. A bridge manipulator beam transverse crack weld reinforcement apparatus according to any one of claims 1-3, characterized in that: the first reinforcing and supporting rib plates (31), the second reinforcing and supporting rib plates (32) and the connecting and reinforcing plates (33) are all formed by cutting and processing a steel plate with the thickness of 20 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089818.6U CN219746823U (en) | 2023-05-08 | 2023-05-08 | Transverse cracking welding reinforcing device for bridge type manipulator beam |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321089818.6U CN219746823U (en) | 2023-05-08 | 2023-05-08 | Transverse cracking welding reinforcing device for bridge type manipulator beam |
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| Publication Number | Publication Date |
|---|---|
| CN219746823U true CN219746823U (en) | 2023-09-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321089818.6U Active CN219746823U (en) | 2023-05-08 | 2023-05-08 | Transverse cracking welding reinforcing device for bridge type manipulator beam |
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| Country | Link |
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| CN (1) | CN219746823U (en) |
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2023
- 2023-05-08 CN CN202321089818.6U patent/CN219746823U/en active Active
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