CN114734181A - Welding trolley for cantilever arm of steel box girder - Google Patents
Welding trolley for cantilever arm of steel box girder Download PDFInfo
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- CN114734181A CN114734181A CN202210418176.3A CN202210418176A CN114734181A CN 114734181 A CN114734181 A CN 114734181A CN 202210418176 A CN202210418176 A CN 202210418176A CN 114734181 A CN114734181 A CN 114734181A
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- steel box
- box girder
- lower platform
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- 238000003466 welding Methods 0.000 title claims abstract description 36
- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 34
- 239000010959 steel Substances 0.000 title claims abstract description 34
- 230000005484 gravity Effects 0.000 claims description 6
- 230000003014 reinforcing effect Effects 0.000 claims description 2
- 238000010276 construction Methods 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 8
- 239000000463 material Substances 0.000 description 9
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000006978 adaptation Effects 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
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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
- B23K37/00—Auxiliary devices or processes, not specially adapted to a procedure covered by only one of the preceding main groups
- B23K37/02—Carriages for supporting the welding or cutting element
- B23K37/0294—Transport carriages or vehicles
Abstract
The invention discloses a welding trolley for a steel box girder cantilever arm, which comprises a moving assembly, wherein at least two bearing beams are fixedly connected above the moving assembly, the top of each bearing beam is fixedly connected with an upper platform, one end of each upper platform is connected with a lower platform, and the height of each bearing beam is 100-150 cm. Because the height of the carrier bar is greater than that of the adjacent edge guard rail, the movement of the welding trolley is not influenced by the adjacent edge guard rail in the construction process, the adjacent edge guard rail does not need to be repeatedly assembled and disassembled, and the requirement of installing the permanent steel guardrail at the later stage is also met by the heightening of the carrier bar; secondly, through the split assembled connection of upper mounting plate and lower platform, can change lower platform to different steel box girder positions, increase its adaptability, this application file has still been equipped with the counter weight subassembly simultaneously, can realize the weight-bias adjustment, avoids the upper mounting plate to increase the back focus and rises and lower platform change the side problem of turning on one's side that the back focus skew leads to.
Description
Technical Field
The invention relates to the technical field of steel box girders, in particular to a welding trolley for a cantilever arm of a steel box girder.
Background
In order to adapt to the rapid development of urban economy, improve the quality of life and solve the problem of traffic congestion, road construction is performed in a fierce manner, and steel box girder bridges are widely applied to intersections, crossing over built elevated construction environments and other complex construction environments due to the advantages of flexible and various installation methods, short construction period and the like.
The main method for installing the steel box girder is to set up a support jig frame under a main box chamber, and a cantilever adopts a non-support installation method, and comprises a support truss, an operation platform and universal wheels; the support truss comprises a horizontal support truss and a vertical support truss and is mainly formed by welding channel steel; the horizontal support truss is positioned at the two thirds part of the vertical support truss from bottom to top; the operating platform is welded at the bottom of the vertical supporting truss, and the bottom surface of the operating platform is parallel to the plane of the horizontal supporting truss; the universal wheels are arranged on the lower bottom surface of the horizontal support truss; a space for accommodating the cantilever of the steel box girder is arranged between the universal wheel and the operating platform. Although the design can ensure the alignment and welding quality of the butt welding seam between the segments.
The existing cantilever trolley has the following defects in the using process: the standardized construction requirement of each building site field safety civilization is higher and higher now, requires that steel box girder corbel installation back must set up and faces the limit protection, sets up promptly and faces limit guard rail 15, and current corbel car is in the use, because the distance between the bottom of horizontal support truss and the bridge floor is less than and faces limit guard rail 15's height, consequently need install repeatedly and tear limit guard rail 15 open, just can guarantee corbel car normal use, but the efficiency is low, the cost of labor is high.
Disclosure of Invention
The invention aims to solve the problem that an adjacent edge protective railing needs to be repeatedly mounted and dismounted when an outrigger trolley in the prior art is used, and provides a welding trolley for an outrigger of a steel box girder.
In order to achieve the purpose, the invention adopts the following technical scheme:
the welding trolley for the cantilever arm of the steel box girder comprises a moving assembly, wherein at least two bearing beams are fixedly connected above the moving assembly, an upper platform is fixedly connected to the top of each bearing beam, one end of the upper platform is connected with a lower platform, and the height of each bearing beam is 100-150 cm.
Preferably, the lower platform comprises vertical beams, connecting beams, a support plate and lower fences, the vertical beams are connected to one end of the upper platform, the number of the vertical beams is at least two, the number of the connecting beams corresponds to that of the vertical beams, the connecting beams are fixedly connected with the bottoms of the vertical beams, the bottoms of the connecting beams are fixed on the support plate, and the lower fences are fixed at the top edge of the support plate and are vertically arranged; one end of the upper platform, which is far away from the lower platform, is connected with a counterweight component with an adjustable counterweight, the moving component is positioned between the counterweight component and the lower platform, and the counterweight component is used for balancing the gravity at the two ends of the upper platform.
Preferably, the counterweight assembly comprises a counterweight frame connected to one end of the upper platform, and at least one counterweight block is arranged in the counterweight frame.
Preferably, the joints of the vertical beams and the connecting beams are fixedly connected with connecting layer plates, and the two connecting layer plates at the joints of the vertical beams and the connecting beams are connected through at least one fixing bolt.
Preferably, the moving assembly is an electric flat carriage.
Preferably, the upper platform includes crossbeam, walking board and upper guardrail, the crossbeam is the rectangle frame form, just erect the roof beam with the equal fixed connection of carrier bar is in the bottom of crossbeam, the walking board pass through the stiffening beam set up in on the crossbeam, the upper guardrail is the U type, and set up in the top edge of crossbeam.
Preferably, a descending port is reserved between the walking plate and the cross beam, and an escalator leading to the lower platform is fixedly connected in the descending port.
Preferably, an internally-arranged platform extending outwards is horizontally and slidably connected into the lower platform, the internally-arranged platform and the end part of the lower platform are both obliquely arranged, a sliding opening used for extending the internally-arranged platform outwards is formed in the end part of the lower platform, and a turning plate is rotatably connected to the end part of the sliding opening.
Preferably, the top of the carrier bar is fixedly connected with a plurality of locking screws, and the bottom of the upper platform is provided with a plurality of reserved threaded holes corresponding to the locking screws for mounting the carrier bar at different positions of the bottom of the upper platform.
Compared with the prior art, the invention has the beneficial effects that:
because the height of the carrier beam is greater than that of the adjacent edge guard rail, the movement of the welding trolley is not influenced by the adjacent edge guard rail in the construction process, the adjacent edge guard rail does not need to be repeatedly installed and dismantled, and the requirement of installing the permanent steel guardrail in the later period is taken into account by the increase of the carrier beam; secondly, through the split assembly type connection of the upper platform and the lower platform, the lower platform can be replaced aiming at different steel box girder positions, the applicability of the lower platform is improved, meanwhile, the application file is also provided with a counterweight component, the unbalance weight adjustment can be realized, the side-turning problem caused by the gravity center rising after the upper platform is heightened and the gravity center offset after the lower platform is replaced is avoided, meanwhile, the positions of the moving component and the counterweight component can be adjusted, the bearing of the lower platforms with different masses is realized, and the stability of the lower platform during working is ensured; in addition, the electric flat carriage is arranged, so that the device is convenient to move; secondly, through the arrangement of the built-in platform and the turning plate, the condition that the lower platform is thrown things in the air due to easy blanking when in use can be avoided.
Drawings
FIG. 1 is a schematic structural diagram of a welding trolley for a cantilever arm of a steel box girder provided by the invention;
FIG. 2 is a perspective view of a welding carriage for a cantilever of a steel box girder according to the present invention;
FIG. 3 is an enlarged view taken at A in FIG. 2;
FIG. 4 is a schematic structural diagram of a turning plate in the welding trolley for the cantilever arm of the steel box girder;
FIG. 5 is a structural diagram of a state after a counterweight component in the welding trolley of the cantilever of the steel box girder moves horizontally relative to a moving component;
FIG. 6 is a schematic structural view of a welding carriage provided with a bearing frame, a weight measuring plate and a material guide plate;
fig. 7 is an enlarged view at B in fig. 6.
In the figure: 1. a load beam; 2. erecting a beam; 3. a support plate; 4. a lower fence; 5. a connecting beam; 6. a balancing weight; 7. connecting the laminated plates; 8. a cross beam; 9. a walking board; 10. an upper guardrail; 11. an escalator; 12. a counterweight frame; 13. a built-in platform; 14. turning over a plate; 15. the device comprises an edge protection guardrail, 16 support columns, 17 bearing frames, 18 weight adjusting blocks, 19 discharge ports, 20 push rod motors, 21 material guide plates and 22 weight measuring plates.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
Referring to fig. 1-4, the welding trolley for the cantilever arm of the steel box girder comprises a moving assembly, wherein the moving assembly is used for walking of the device, at least two bearing beams 1 are fixedly connected above the moving assembly, an upper platform is fixedly connected to the top of each bearing beam 1, wherein the upper platform can be used for a walking channel for workers to pass through in a downward flat manner, one end of the upper platform is connected with the lower platform, the lower platform is used for bearing the workers to carry out construction work on the side wall of the steel box girder bridge, the height of the bearing beam 1 is 100cm-150cm, compared with the prior art, the bearing beam 1 is additionally arranged, the height of the guardrail is 100cm-150cm, the height of the prior adjacent edge guard rail 15 is 70cm-100cm, because the carrier bar 1 highly is higher than the height of facing edge guard railing 15 like this, need not to ann repeatedly to tear down edge guard railing 15 like this in the work progress for the construction progress.
What needs to be supplemented is: the carrier bar 1 is preferably composed of adjustable height, so that the height adjustment can be realized, the actual scene requirements can be better met, the adaptive adjustment of the edge guard rails 15 with different heights can be conveniently carried out, namely, the upper platform is just higher than the edge guard rails 15, the specific carrier bar 1 comprises an outer rod and an inner rod, the inner rod is connected in the outer rod in a sliding manner, and in order to ensure the connection stability between the inner rod and the outer rod, a positioning bolt or an electric push rod can be connected to the outer wall of the outer rod; when the positioning bolt is adopted, the positioning bolt can extend into the outer rod, and the outer wall of the inner rod is provided with a plurality of reserved positioning holes corresponding to the positioning bolt, so that the outer rod and the inner rod are stabilized through the matching of the positioning bolt and the reserved positioning holes; when the electric push rod is adopted, the electric push rod is arranged in the outer rod, the output end of the electric push rod is fixedly connected with the bottom of the inner rod, the inner rod can be driven to move upwards through the electric push rod, the height of the bottom of the upper platform is adjusted, and the electric push rod can be adjusted in adaptability to the edge protection railings 15 at different heights.
Still further, in order to strengthen the suitability of welding carriage, the welding carriage adopts layering from top to bottom, and upper mounting plate and lower mounting plate adopt assembled connection, preferably adopt bolted connection, specifically set up as follows: the lower platform comprises vertical beams 2, connecting beams 5, a supporting plate 3 and a lower fence 4, wherein the vertical beams 2 are connected to one end of the upper platform, the number of the vertical beams 2 is at least two, the connecting beams 5 correspond to the number of the vertical beams 2, the connecting beams 5 are fixedly connected with the bottom of the vertical beams 2, the bottom of the connecting beams 5 is fixed on the supporting plate 3, the lower fence 4 is fixed at the edge of the top of the supporting plate 3 and is vertically arranged, connecting layer plates 7 are fixedly connected at the joints of the further vertical beams 2 and the connecting beams 5, and the two connecting layer plates 7 at the joints of the vertical beams 2 and the connecting beams 5 are connected through at least one fixing bolt, so that the lower platform is conveniently adjusted and replaced, the lower platform with corresponding length is adjusted and replaced according to the layout of different steel box beams, namely, the lower platform is adjusted to extend to the side wall of the bridge, and accordingly the operation of workers is facilitated;
in addition, after the lower platform is replaced, the side turning of the welding trolley needs to be avoided due to different gravity, so that an adjustable counterweight component is arranged at the other end of the upper platform, specifically, one end of the upper platform, which is far away from the lower platform, is connected with the counterweight component capable of adjusting the counterweight, the moving component is positioned between the counterweight component and the lower platform, and the counterweight component is used for balancing the gravity at the two ends of the upper platform; further counterweight assemblies are preferably provided as follows: the counterweight component comprises a counterweight frame 12 fixedly connected to one end of the upper platform, and at least one counterweight block 6 is arranged in the counterweight frame 12.
In addition, the accessible adjustment removes the position that the subassembly is located the upper mounting plate bottom, realizes the bearing adjustment to platform down, because remove the subassembly and the carrier bar 1 on it is located down between platform and the counterweight assembly, like this in order to guarantee the stability of platform down, through platform direction change moment down, and then guarantee the stability of platform down, be about to remove the subassembly and remove to platform direction down, wherein the removal installation of specific removal subassembly preferably refers to following structure: a plurality of locking screws are fixedly connected to the top of the carrier beam 1, a plurality of reserved threaded holes corresponding to the locking screws are formed in the bottom of the upper platform, the carrier beam 1 is installed at different positions of the bottom of the upper platform, and after adjustment is achieved in the position of the movable assembly, the movable assembly is guaranteed to be stable after movement through the locking screws and the reserved threaded holes corresponding to the position.
Secondly, refer to fig. 5, wherein the counterweight assembly also can realize moving along the horizontal direction of upper mounting plate, through counterweight assembly's removal, realize counterweight assembly and remove the distance adjustment between the subassembly like this, thereby realize also realizing the equilibrium of adjusting carrier bar 1 both sides, and then guarantee the stability of lower platform, can not turn on one's side, it is specific, wherein have the gliding slide of counterweight assembly on the upper mounting plate, wherein be provided with the locking piece that is used for locking counterweight assembly in the slide, wherein the locking piece preferred adopts the bolt, secondly can adopt the mode of buckle connection, realize that the locking piece to counterweight assembly locking location all is in the protection scope of this application file promptly.
Referring to fig. 6 and 7, in addition, the counterweight adjustment of the counterweight assembly can be realized according to the weight of a person entering the lower platform, specifically, a bearing frame 17 is connected to the balance trolley through a supporting column 16, a weight adjusting block 18 is arranged in the bearing frame, wherein the weight of each weight-adjusting block 18 is between 60 and 70 kilograms, and the bottom of the bearing frame 17 is provided with a two-way discharge hole 19, the outer wall of the bearing frame 17 is connected with a push rod motor 20 through a mounting frame, the output end of the push rod motor 20 is connected with a push plate, the push plate is positioned in a discharge hole 19 at one side, a weight measuring plate 22 is arranged on the cross beam 8, namely, the pressure sensor is contained in the material guide device, the material guide plate 21 is fixedly connected with the material outlet 19 at one side, the output end of the material guide plate 21 is positioned on the counterweight frame 12, wherein the moving trolley is provided with a controller, wherein the controller is electrically connected with a pressure sensor in the weight measuring plate 22 and the push rod motor 20, namely the implementation mode is as follows: when an operator needs to enter the lower platform to implement work, the operator climbs onto the cross beam 8 through the balance trolley firstly, then enters the lower platform from the cross beam 8 through the escalator 11, when the operator climbs onto the cross beam 8, the weight measuring plate 22 can be stepped on, the measured data of the pressure sensor in the weight measuring plate 22 is sent to the controller, the controller controls the push rod motor 20 to work, namely, the weight adjusting block 18 located at the bottommost part is pushed forwards to enter the material guide plate 21, the weight adjusting block 18 enters the counterweight frame 12 along the material guide plate 21, so that the self-adjustment of the two sides of the moving assembly can be realized according to the weight of the operator entering the lower platform through the adjustment of the weight adjusting block 18, and further the side turning is avoided.
In addition, the moving assembly is preferably an electric flat carriage in the prior art, so that the cantilever trolley can automatically run and is more labor-saving, wherein in order to facilitate the arrangement of the bearing beam 1 on the electric flat carriage, an installation plate can be fixed at the bottom of the bearing beam 1 and is fixed on the electric flat carriage through screws or welding; still further, the electric flat carriage selects wheels to have a steering function, so that the problem of steering of the trolley is solved.
In order to facilitate the worker to walk on the upper platform, the following is preferably set: the upper platform comprises a cross beam 8, a walking plate 9 and an upper guardrail 10, the cross beam 8 is in a rectangular frame shape, the vertical beam 2 and the bearing beam 1 are fixedly connected to the bottom of the cross beam 8, the walking plate 9 is arranged on the cross beam 8 through a reinforcing beam, the upper guardrail 10 is in a U shape and is arranged on the edge of the top of the cross beam 8, the walking plate 9 walks, and the upper guardrail 10 plays a role of protection; in order to facilitate the transition from the upper platform to the lower platform, a staircase is arranged, a descending port is reserved between the specific walking plate 9 and the cross beam 8, and a staircase 11 leading to the lower platform is fixedly connected in the descending port.
In addition, in order to ensure the safety of the lower platform during construction, the built-in platform 13 is additionally arranged in the lower platform, wherein a worker can stand on the built-in platform 13 to perform construction, the built-in platform 13 is connected with the inner wall of the lower platform in a sliding manner, namely, the built-in platform 13 can extend outwards along the lower platform and then abuts against and is attached to the side wall of the bridge floor, so that a welded object or a tool and the like are prevented from falling downwards when the worker operates, specifically, the built-in platform 13 extending outwards is horizontally and slidably connected in the lower platform, the end parts of the built-in platform 13 and the lower platform are arranged in an inclined manner, so that the bridge floor is more easily attached after the built-in platform 13 extends outwards, and construction is facilitated, the end part of the lower platform is provided with a sliding opening for the built-in platform 13 to extend outwards, and the arrangement of the sliding opening is convenient for the built-in platform 13 to extend outwards.
In addition, a gap is prevented from being reserved between the built-in platform 13 and the bridge floor, welding objects and the like fall downwards along the gap, and the danger of throwing objects at high altitude is avoided, the welding objects falling downwards from the gap can be guided into the lower platform through the additionally arranged turning plate 14, specifically, the end part of the sliding opening is rotatably connected with the turning plate 14, the turning plate 14 can rotate outwards, when the turning plate 14 rotating outwards rotates to be in contact with the side wall of the bridge floor, the turning plate 14 is arranged obliquely, so that the welding objects and the like falling from the gap between the built-in platform 13 and the bridge floor can fall on the turning plate 14, the welding objects and the like falling through the guiding of the turning plate 14 fall into the lower platform, and the problem that the welding objects fall downwards is avoided.
Further, in order to ensure that the turning plate 14 can adapt to bridge floors of different degrees, the turning plate 14 preferably adopts an assembled structure, referring to fig. 4, namely the turning plate 14 consists of two parts, namely an outer plate and an inner plate, wherein the inner plate slides in the outer plate, namely a containing groove for sliding the inner plate is arranged on the outer plate, wherein the containing groove is provided with a buffer part connected with the inner plate, the buffer part preferably adopts a spring, namely the distance between the inner plate and the outer plate can be adjusted through the arrangement of the buffer part, so that the adaptation to different bridge floors is realized according to the outward turning angle of the turning plate 14, and the outer plate is arranged at the upper part of the inner plate, so that downward welding objects and the like are prevented from being clamped between the joints of the inner plate and the outer plate; secondly, wherein the tip of turning over board 14 is provided with the elasticity portion, wherein the end that the elasticity portion preferred adopted and has made rubber, like this when turning over board 14 and lapping on the bridge floor, can not lead to the card material because leave the gap between the tip of turning over board 14 and the bridge floor, because the setting of elasticity portion under the extruded condition for do not leave the gap between turning over board 14 and the bridge floor, the deformation of elasticity portion fills the gap between turning over board 14 and the bridge floor promptly, guarantees the stability of unloading like this.
Finally, it should be noted that: the device is also provided with safety signs, operation rules, equipment nameplates, special distribution boxes, lighting and tool boxes, safety warning lamps, walking electric bells, fire extinguishers and other safety facilities, which are not shown in the figure.
The invention can be illustrated by the following operating modes:
when the steel box girder erection device is used, workers transit to the lower platform through the walking plate 9 of the upper platform, namely move to the supporting plate 3 of the lower platform through the escalator 11, so that the steel box girder is convenient to construct, and in the construction process, as the height of the bearing beam 1 is larger than that of the adjacent edge protection railing 15, the adjacent edge protection railing 15 does not need to be repeatedly installed and dismantled in the construction process.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (9)
1. The welding trolley for the cantilever arm of the steel box girder comprises a moving assembly and is characterized in that at least two bearing beams (1) are fixedly connected to the upper portion of the moving assembly, an upper platform is fixedly connected to the top of each bearing beam (1), a lower platform is connected to one end of each upper platform, and the height of each bearing beam (1) is 100-150 cm.
2. The welding trolley for the cantilever of the steel box girder as claimed in claim 1, wherein the lower platform comprises vertical beams (2), connecting beams (5), a support plate (3) and lower fences (4), the vertical beams (2) are connected to one end of the upper platform, the number of the vertical beams (2) is at least two, the number of the connecting beams (5) corresponds to the number of the vertical beams (2), the connecting beams (5) are fixedly connected with the bottom of the vertical beams (2), the bottom of the connecting beams (5) is fixed on the support plate (3), and the lower fences (4) are fixed at the top edge of the support plate (3) and are vertically arranged;
one end of the upper platform, which is far away from the lower platform, is connected with a counterweight component with an adjustable counterweight, the moving component is positioned between the counterweight component and the lower platform, and the counterweight component is used for balancing the gravity at the two ends of the upper platform.
3. The welding carriage of the cantilever of the steel box girder as recited in claim 2, wherein the counterweight assembly comprises a counterweight frame (12) connected to one end of the upper platform, and at least one counterweight (6) is disposed in the counterweight frame (12).
4. The welding carriage for the cantilever of the steel box girder as claimed in claim 2, wherein the joint of the vertical girder (2) and the connecting girder (5) is fixedly connected with a connecting plate (7), and the two connecting plates (7) at the joint of the vertical girder (2) and the connecting girder (5) are connected by at least one fixing bolt.
5. The welding carriage of the cantilever of the steel box girder as recited in claim 1, wherein the moving assembly is an electric flat carriage.
6. The welding carriage for the cantilever of the steel box girder as claimed in claim 2, wherein the upper platform comprises a cross beam (8), a walking plate (9) and an upper guardrail (10), the cross beam (8) is in a rectangular frame shape, the vertical beam (2) and the bearing beam (1) are both fixedly connected to the bottom of the cross beam (8), the walking plate (9) is arranged on the cross beam (8) through a reinforcing beam, and the upper guardrail (10) is in a U shape and is arranged on the top edge of the cross beam (8).
7. The welding carriage of the cantilever of the steel box girder as recited in claim 6, wherein a descending opening is left between the walking plate (9) and the cross beam (8), and an escalator (11) leading to the lower platform is fixedly connected in the descending opening.
8. The welding carriage of the cantilever of the steel box girder as recited in claim 1, wherein the lower platform is horizontally and slidably connected with an internally-arranged platform (13) extending outwards, the internally-arranged platform (13) and the end of the lower platform are both arranged in an inclined manner, the end of the lower platform is provided with a sliding opening for the internally-arranged platform (13) to extend outwards, and the end of the sliding opening is rotatably connected with a turning plate (14).
9. The welding trolley for the cantilever of the steel box girder as claimed in claim 1, wherein a plurality of locking screws are fixedly connected to the top of the carrier beam (1), and a plurality of reserved threaded holes corresponding to the locking screws are formed in the bottom of the upper platform, so that the carrier beam (1) can be mounted at different positions of the bottom of the upper platform.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210418176.3A CN114734181A (en) | 2022-04-20 | 2022-04-20 | Welding trolley for cantilever arm of steel box girder |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210418176.3A CN114734181A (en) | 2022-04-20 | 2022-04-20 | Welding trolley for cantilever arm of steel box girder |
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| CN114734181A true CN114734181A (en) | 2022-07-12 |
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| CN206328678U (en) * | 2016-12-21 | 2017-07-14 | 中建三局安装工程有限公司 | Steel box-girder chooses arm and steel guard rail installs dual-purpose type Mobile operating platform |
| CN106638299A (en) * | 2017-01-18 | 2017-05-10 | 湖南瑞涪科技实业有限公司 | Multifunctional operation platform and construction method |
| CN206553923U (en) * | 2017-01-20 | 2017-10-13 | 武汉市市政建设集团有限公司 | A kind of mobile platform device for being used to install Collison fence for bridge |
| CN108643039A (en) * | 2018-05-08 | 2018-10-12 | 宁夏路桥工程股份有限公司 | A kind of safe work platform of beam bridge steel web application |
| CN109763423A (en) * | 2018-12-24 | 2019-05-17 | 中建三局集团有限公司 | A kind of adjustable split-type movable hanging basket and operating method for bridge maintenance |
| CN210507141U (en) * | 2019-03-15 | 2020-05-12 | 上海建工七建集团有限公司 | Movable tensioning platform |
| CN212823518U (en) * | 2020-06-18 | 2021-03-30 | 中建八局第三建设有限公司 | Municipal administration bridge guardrail welding slag leakage prevention device |
| CN213538692U (en) * | 2020-09-30 | 2021-06-25 | 中铁十四局集团第三工程有限公司 | Trolley for guardrail construction |
| CN216040667U (en) * | 2021-08-04 | 2022-03-15 | 海波重型工程科技股份有限公司 | Multifunctional telescopic cantilever hanging rack |
| CN215714714U (en) * | 2021-09-28 | 2022-02-01 | 中国水利水电第三工程局有限公司 | Hanging basket equipment for installing bridge guardrail |
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