Welding gun position adjusting structure for in-service bridge U rib repairing equipment and repairing equipment
By adjusting the welding torch position of the U-rib repair equipment for in-service bridges, and utilizing the guide unit and linear output device to achieve precise guidance of the welding torch, the problem of unsatisfactory quality of the inner corner weld of the U-rib was solved, thus improving the welding quality.
Patent Information
- Application Number
- CN202422833839.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-20
- Publication Date
- 2025-11-07
- Estimated Expiration
- 2034-11-20
AI Technical Summary
The quality of the inner corner welds of the U-ribs in in-service bridges does not meet the requirements, and existing technologies are insufficient to effectively improve the welding quality.
Design a welding torch position adjustment structure for in-service bridge U-rib repair equipment, including a welding torch position adjustment unit and a guide unit. The shape of the inner wall of the U-rib is sensed by the upper guide wheel and the side guide wheel, and the welding torch position is adjusted in real time to align with the weld. A linear output device driven by a cylinder or hydraulic cylinder is used to achieve precise guidance and position adjustment of the welding torch.
It improves welding quality, can cope with U-rib deformation, ensures that the welding torch is aligned with the weld position in real time, and enhances welding effect.
Smart Images
Figure CN223518943U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of in-service bridge repair, in particular to a welding gun position adjusting structure of a U rib repair equipment for in-service bridge and the repair equipment. BACKGROUND
[0002] Steel box girder is an important component in bridge bearing structure, and is generally an orthotropic steel bridge deck panel, mainly used for providing support to avoid bridge deformation. The steel box girder generally comprises a top plate and a bottom plate, and the top plate and the bottom plate are generally welded by U ribs and steel plates.
[0003] Many U ribs of in-service bridges are not welded with steel plates at inner corners, and currently, inner welding vehicles are used to weld at the inner corners of the U ribs by using inner welding technology during the repair of the in-service bridges, and double-sided welding can greatly improve the fatigue life of the welding joints between the U ribs and the steel plates.
[0004] However, it is found through the inspection of the U ribs of the in-service bridges after the repair that the welding quality of the U ribs at some positions does not meet the requirements. INVENTION CONTENTS
[0005] The utility model discloses a welding gun position adjusting structure of a U rib repair equipment for in-service bridge and the repair equipment are provided to improve the welding quality of the inner corners of the U ribs.
[0006] The utility model discloses the following technical scheme.
[0007] The welding gun position adjusting structure of the U rib repair equipment for in-service bridge comprises:
[0008] A welding gun position adjusting unit is arranged on the left and right directions of the vehicle body, and each welding gun is directed to the welding seam on the same side.
[0009] A welding gun position guiding unit is arranged on the left and right directions of the vehicle body, and each welding gun is directed to the welding seam on the same side.
[0010] In an embodiment, the welding gun position adjusting unit comprises:
[0011] The first linear output device is connected to the vehicle body, and the linear displacement output by the first linear output device is in a plane perpendicular to the length direction of the U-rib.
[0012] The second linear output device is connected to the end of the first linear output device, and the linear displacement output by the second linear output device is in a plane perpendicular to the length direction of the U-rib and different from the direction of the linear displacement output by the first linear output device.
[0013] In an embodiment, the wheel shaft of the upper guide wheel is connected to the output end of the first linear output device.
[0014] The wheel shaft of the side guide wheel is connected to the output end of the second linear output device.
[0015] The first linear output device and the second linear output device are cylinders or hydraulic cylinders, and the displacement change of the output end of the first linear output device and the second linear output device makes the load on them constant.
[0016] In an embodiment, the cylinder body of the first linear output device is inverted to the outside relative to the vertical direction.
[0017] The cylinder body of the second linear output device is horizontally arranged.
[0018] In an embodiment, the output end of the first linear output device is connected to a horizontal movement base, the bottom surface of the horizontal movement base is perpendicular to the cylinder body of the first linear output device, and the top surface of the horizontal movement base is horizontal.
[0019] A horizontal movement slide rail is arranged on the horizontal movement base, a sliding block is arranged on the horizontal movement slide rail, a driving motor is installed on the sliding block, and the output end of the driving motor is connected to a welding gun.
[0020] In an embodiment, one of the cylinder bodies of the second linear output devices of the two welding gun position adjustment units is above the horizontal movement slide rail, and the other is below the horizontal movement slide rail.
[0021] The in-service bridge U-rib repair equipment includes the welding gun position adjustment structure described above.
[0022] The welding gun position adjusting structure for the U-rib repairing equipment of the bridge in service provided by the technical scheme of the utility model, contain: welding gun position adjusting unit, the end of welding gun position adjusting unit installs a welding gun respectively, welding gun position adjusting unit is used for adjusting the position of welding gun in the plane perpendicular to the length direction of U-rib;Two welding gun position adjusting units are arranged in the left and right directions of the vehicle body, and each welding gun is directed to the weld on the same side thereof;Each welding gun position adjusting unit is provided with a welding gun position guiding unit, and the side guide wheel on each welding gun position adjusting unit is pressed on the side wall on the same side thereof. The welding gun guiding unit can directly guide the welding gun position adjusting unit, so that the welding guns on both sides can be aligned with the weld on the same side in real time, and the deformation of the U-rib of the bridge in service can be coped with, so that the welding quality is improved.
[0023] For further clarity, aspects and advantages of the embodiments disclosed by the utility model will become apparent from the following description, or be learned by practice of the embodiments disclosed by the utility model. BRIEF DESCRIPTION OF DRAWINGS
[0024] The drawings are used to provide further understanding of the utility model, and constitute a part of the specification, and are used to explain the utility model together with the following specific embodiment, but do not constitute the limitation of the utility model.
[0025] Figure 1 The structural schematic diagram of the welding gun position adjusting structure for the U-rib repairing equipment of the bridge in service provided by embodiment 1 is shown in the figure;
[0026] Figure 2 The schematic diagram of the structure in the figure in another view; Figure 2
[0027] Figure 3 The schematic diagram of the structure in the figure in the overhead view; Figure 2
[0028] The structural schematic diagram of the U-rib repairing equipment of the bridge in service provided by embodiment 1 is shown in the figure; Figure 4
[0029] The structural schematic diagram of the front part of the U-rib repairing equipment of the bridge in service provided by embodiment 1 is shown in the figure. Figure 5 DETAILED DESCRIPTION
[0030] The principles and characteristics of the utility model are described below in combination with the drawings, and the examples are only used to explain the utility model, and are not used to limit the scope of the utility model.
[0031] Embodiment 1
[0032] Refer to Figures 1 to 5 The embodiment provides a U-rib repairing device for in-service bridge, which comprises
[0033] A vehicle body 25 is arranged to move along the length direction of the U-rib in the U-rib;
[0034] A walking guide unit is arranged on the vehicle body 25 to guide the vehicle body 25;
[0035] And a welding gun position adjusting structure for the U-rib repairing device for in-service bridge.
[0036] The welding gun position adjusting structure for the U-rib repairing device for in-service bridge comprises
[0037] A welding gun position adjusting unit is arranged at the end of the welding gun position adjusting unit, and the welding gun position adjusting unit is arranged to adjust the position of the welding gun 1 in the plane perpendicular to the length direction of the U-rib; two welding gun position adjusting units are arranged on the left and right directions of the vehicle body 25, and each welding gun 25 is arranged to point to the welding seam on the same side;
[0038] A welding gun position guide unit comprises an upper guide wheel 3 and a side guide wheel 2, the upper guide wheel 3 and the side guide wheel 2 are arranged to rotate freely along the wheel shaft, the wheel shaft of the upper guide wheel 3 and the side guide wheel 2 is connected to the welding gun position adjusting unit, the wheel circumference of the upper guide wheel 3 is pressed on the upper wall of the U-rib, and the wheel circumference of the side guide wheel 2 is pressed on the side wall of the U-rib; one welding gun position guide unit is arranged for each welding gun position adjusting unit, and the side guide wheel on each welding gun position adjusting unit is pressed on the side wall on the same side.
[0039] In the embodiment, the inner wall shape or the trend of the U-rib is perceived by the upper guide wheel 3 and the side guide wheel 2, and the information of the inner wall shape or the trend of the U-rib is transmitted to the welding gun position adjusting unit through the structural connection, so that the welding gun can be aligned with the welding seam.
[0040] Further, in the U-rib repairing device for in-service bridge, the welding gun guide units on the left and right sides of the U-rib are arranged to adjust the position of the welding gun at the end of the welding gun position adjusting unit according to the position of the welding seam on the same side, so that the welding gun on the left and right sides can be aligned with the welding seam on the same side in real time, and the welding quality can be improved in the case that the U-rib of the in-service bridge is deformed.
[0041] In the embodiment, the welding gun position adjusting unit comprises
[0042] A first linear output device 14 is connected to the vehicle body 25, and the linear displacement output by the first linear output device 14 is located in the plane perpendicular to the length direction of the U-rib;
[0043] The second linear output device 18 is connected at the end of the first linear output device 14, and the linear displacement output by the second linear output device 18 is in a plane perpendicular to the length direction of the U rib and different from the linear displacement direction output by the first linear output device 14.
[0044] By arranging the first linear output device 14 and the second linear output device 18, the displacements output by the two are in a plane perpendicular to the length direction of the U rib and different from each other, so that the position of the welding gun 1 in the plane perpendicular to the length direction of the U rib can be adjusted, and the welding seam can be aligned.
[0045] In the embodiment, the second linear output device 18 is arranged at the end of the first linear output device 14, and the adjustment of the second linear output device 18 is not affected by the first linear output device 14, so that the adjustment is more smooth.
[0046] In the embodiment, the wheel shaft of the upper guide wheel 3 is connected to the output end of the first linear output device 14 through the upper guide wheel support 22.
[0047] The wheel shaft of the side guide wheel 2 is connected to the output end of the second linear output device 18 through the side guide wheel support 21.
[0048] The position of the upper guide wheel 3 directly affects the position of the output end of the first linear output device 14, and the position of the side guide wheel 2 directly affects the position of the output end of the second linear output device 18, so as to change the position of the welding gun. Due to the reinforcement of the old bridge U rib, there may be a case of U rib deformation, and the side guide wheel 2 can be adjusted in real time and is not affected by the upper guide wheel 3, so that the adjustment is more smooth, the welding gun 1 can be aligned with the same side welding seam position in real time, and the welding gun position guide unit directly guides the welding gun part, so that the guide is more accurate.
[0049] The first linear output device 14 and the second linear output device 18 are gas cylinders or hydraulic cylinders, and the displacement change of the output end of the first linear output device 14 and the second linear output device 18 makes the load borne by them constant, so that the guide is realized.
[0050] In the embodiment, the cylinder body of the first linear output device 14 is arranged to the outside relative to the vertical direction.
[0051] The cylinder body of the second linear output device 14 is arranged horizontally.
[0052] Specifically, the lifting base 17 can be fixed on the bottom plate of the vehicle body 25, the upper surface of the lifting base 17 is designed with two symmetrical inclined surfaces, and the cylinder bodies of the first linear output device 14 are respectively placed on the inclined surfaces and fixed. The connecting surfaces of the two horizontal moving bases 16 and the output ends of the cylinder bodies of the first linear output device 14 are provided with inclined surfaces with the same inclination angle as the upper surface of the lifting base 17, so that the bottom surface of the horizontal moving base 16 is perpendicular to the cylinder body of the first linear output device 14, and the upper surface of the horizontal moving base 16 is horizontal. The cylinder body of the first linear output device 14 is placed obliquely, and the horizontal moving base 16 moves upward and outward during the lifting process, which can reduce the required stroke of the horizontal moving slide rail 15 arranged on the horizontal moving base. The horizontal moving slide rail 15 is provided with a sliding block, the driving motor 4 is installed on the sliding block, and the output end of the driving motor 4 is connected with the welding gun 1.
[0053] During the repair operation, the output end of the driving motor 4 drives the welding gun 1 to swing within a preset angle at a preset speed, thereby improving the welding quality.
[0054] In the embodiment, one of the cylinder bodies of the second linear output device 18 of the two welding gun position adjusting units is located above the horizontal moving slide rail 15, and the other is located below the horizontal moving slide rail 15, thereby saving space, shortening the length of the vehicle body 25, and correspondingly shortening the length of the opening required to be opened on the U rib during the repair, so as to not reduce the strength and rigidity of the bridge in service as much as possible.
[0055] In the embodiment, the cylinder bodies of the two second linear output devices 18 are respectively connected to the horizontal moving driving cylinder fixed support 19, the cylinder rods of the two second linear output devices 18 are connected to the horizontal moving driving cylinder telescopic shaft support 20, the horizontal moving driving cylinder fixed support 19 is fixed on the horizontal moving base 16, and the horizontal moving driving cylinder telescopic shaft support 20 is fixed on the base on which the driving motor 4 is installed, so that the driving motor 4 and the welding gun 1 can be moved horizontally on the horizontal moving slide rail 15 through the second linear output device 18.
[0056] In the embodiment, the bottom of the vehicle body 25 is provided with a driven walking wheel 13 and two pairs of driving walking wheels 9.
[0057] The driven walking wheel 13 is located between the two first linear output devices 14, thereby increasing the stability of walking.
[0058] The two pairs of driving walking wheels 9 are arranged in front and back.
[0059] The two pairs of driving walking wheels 9 are connected to the output shaft of the servo motor through a double-shaft speed reducer, and compared with the chain transmission arranged between the motor and the walking wheel, the vehicle body 25 runs more stably.
[0060] In the embodiment, the walking guide unit comprises two walking guide wheels 12 arranged symmetrically left and right, the wheel circumferential surface of the walking guide wheel 12 is pressed against the side wall of the U rib, and the wheel shaft of the walking guide wheel 12 is connected to the output end of the third linear output device;
[0061] The third linear output device adopts a pneumatic cylinder or a hydraulic cylinder, the displacement of the output end of the third linear output device is changed so that the load borne by the third linear output device is constant, and the guiding is realized.
[0062] In the embodiment, the two walking guide wheels 12 are installed below the second linear output device 18, and the length of the vehicle body 25 is reduced.
[0063] The walking guide unit can be provided in plurality, so that the walking process of the vehicle body 25 is more stable, thereby improving the welding quality.
[0064] Further, the wheel shaft of each pair of driving walking wheels 9 is connected with a walking guide wheel support 8, the top end of the walking guide wheel support 8 is connected with the walking guide wheel 5. The middle of the walking guide wheel support 8 is hollow, and the driving motor and the wiring are placed in the internal space, so as to reduce the space waste and shorten the length of the vehicle body 25. After the length of the vehicle body 25 is shortened, the length of the opening required to be opened on the U rib during repair is correspondingly shortened, so as to not reduce the strength and rigidity of the bridge in service as much as possible.
[0065] In the embodiment, the driving walking wheel 9 located in front (left side) and the driven walking wheel 13 are provided with the walking guide device with a height lower than the top end of the support 8. Figure 1
[0066] The walking guide device is arranged at different heights, so that the walking process of the vehicle body 25 is more stable, thereby improving the welding quality.
[0067] In the embodiment, the walking guide device further comprises an upper top wheel 7, the wheel circumferential surface of the upper top wheel 7 is pressed against the upper wall of the U rib, and the wheel shaft of the upper top wheel 7 is connected to the output end of the fourth linear output device 10 through the connecting piece 6.
[0068] The fourth linear output device 10 adopts a pneumatic cylinder or a hydraulic cylinder, the displacement of the output end of the fourth linear output device 11 is changed so that the load borne by the fourth linear output device 11 is constant, and the guiding is realized.
[0069] The cylinder body of the fourth linear output device 10 is installed on an upper jacking device base 11 which is higher than the bottom of the vehicle body, and the upper jacking device base 11 is designed as a hollow structure, so that the height of the cylinder body of the fourth linear output device 10 can be increased to reduce the stroke of the cylinder body, and the internal space can be used to place a driving motor and wiring, thereby reducing space waste and shortening the length of the vehicle body 25.
[0070] In the embodiment, a mounting plate is arranged behind the welding gun position adjusting unit, a camera 23 and an illuminating lamp 24 are arranged on the mounting plate, and the field of view of the camera 23 and the illuminating lamp 24 contains the head of the welding gun 1. The illuminating lamp 24 is fixedly arranged with the camera 23, and the welding position can be observed at any time, so that the welding quality can be monitored conveniently.
[0071] In the description of the utility model, it is to be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the utility model.
[0072] In the utility model, unless otherwise clearly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, or can be detachable connection, or can be integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium; can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For ordinary skilled persons in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.
[0073] In the description of the specification, the description of the terms "one embodiment", "some embodiments", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in combination with the embodiment or example are included in at least one embodiment or example of the utility model. In the specification, the illustrative description of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, the skilled person in the art can combine and combine the different embodiments or examples described in the specification and the features of the different embodiments or examples without contradiction.
[0074] Although the embodiments of the utility model have been shown and described above, it can be understood that the above-mentioned embodiments are exemplary and cannot be understood as limiting the utility model, and the ordinary skilled in the art can change, modify, replace and transform the above-mentioned embodiments within the scope of the utility model.
Claims
1. A welding gun position adjustment structure for a U-rib repair apparatus for a bridge in service, characterized by, The welding gun position adjusting unit is provided with a welding gun at the end of each welding gun position adjusting unit, and is used to adjust the position of the welding gun in the plane perpendicular to the length direction of the U-rib. The welding gun position guiding unit is provided with an upper guide wheel and a side guide wheel, and the wheel shafts of the upper guide wheel and the side guide wheel are connected to the welding gun position adjusting unit. The welding gun position adjusting unit is provided with:
2. The welding gun position adjustment structure according to claim 1, characterized by The first linear output device is connected to the vehicle body, and the linear displacement output by the first linear output device is in the plane perpendicular to the length direction of the U-rib. The second linear output device is connected to the end of the first linear output device, and the linear displacement output by the second linear output device is in the plane perpendicular to the length direction of the U-rib and is different from the linear displacement output by the first linear output device. The wheel shaft of the upper guide wheel is connected to the output end of the first linear output device.
3. The welding gun position adjustment structure according to claim 2, characterized by The wheel shaft of the side guide wheel is connected to the output end of the second linear output device. The first linear output device and the second linear output device are gas cylinders or hydraulic cylinders, and the displacement change of the output end of the first linear output device and the second linear output device makes the load borne by them constant. The cylinder body of the first linear output device is inverted to the outside relative to the vertical direction.
4. The welding gun position adjustment structure according to claim 3, characterized by The cylinder body of the second linear output device is horizontally arranged. The output end of the first linear output device is connected to a horizontal movement base, the bottom surface of the horizontal movement base is perpendicular to the cylinder body of the first linear output device, and the top surface of the horizontal movement base is horizontal.
5. The welding gun position adjustment structure according to claim 4, characterized by A horizontal movement sliding rail is arranged on the horizontal movement base, a sliding block is arranged on the horizontal movement sliding rail, a driving motor is mounted on the sliding block, and the output end of the driving motor is connected to a welding gun. One of the cylinder bodies of the second linear output devices of the two welding gun position adjusting units is located above the horizontal movement sliding rail, and the other is located below the horizontal movement sliding rail.
6. The welding gun position adjustment structure according to claim 5, characterized by The welding gun position adjusting structure according to any one of claims 1 to 6 is provided.
7. An in-service bridge U-rib repair apparatus, characterized by,