CN220643856U - Welding detection device for U-shaped ribs of steel box girder - Google Patents

Abstract

The utility model discloses a steel box girder U-rib welding detection device which comprises a running mechanism, a vertical telescopic mechanism, a transverse telescopic mechanism and a detection mechanism, wherein the vertical telescopic mechanism is arranged on the running mechanism, the running mechanism is used for running along a guide rail longitudinally arranged in a steel box girder, the transverse telescopic mechanism is arranged at the end part of the vertical telescopic mechanism, and the detection mechanism is arranged at the end part of the transverse telescopic mechanism. The vertical telescopic mechanism stretches and contracts in the vertical direction to change the vertical position of the detection mechanism through the longitudinal position of the detection mechanism which is changed by walking of the walking mechanism on the guide rail, the transverse telescopic mechanism stretches and contracts in the transverse direction to change the transverse position of the detection mechanism and is rotatable, the detection mechanism detects the U rib after moving to a proper position, the longitudinal, vertical and transverse positions of the detection mechanism can be adjusted in a short time, the detection speed is improved, and the detection efficiency is higher.

Description

Welding detection device for U-shaped ribs of steel box girder

Technical Field

The utility model relates to the technical field of steel box girder detection, in particular to a steel box girder U-rib welding detection device.

Background

The steel box girder is also called a steel plate box girder, and is a common structural form of a large-span bridge. Is commonly used on bridges with larger spans, and is called a steel box girder because of the shape of a box. The body shadow of the steel box girder bridge in the highway bridge is more and more frequently appeared at the side of everybody, and the steel box girder bridge is widely applied in urban overpasses. The steel box girder is generally formed by connecting a top plate, a bottom plate, a web plate, a diaphragm plate, a longitudinal diaphragm plate, a U rib and the like in a full welding mode. The steel box girder can have problems of corrosion, fatigue cracking and the like of steel plates under the action of environmental changes and repeated vehicle loads, and the operation safety of the steel box girder bridge can be affected if the steel box girder is not found and overhauled in time.

The existing detection method for the steel box girder mainly comprises the steps of manual detection, manual regular inspection is long in time and low in detection precision, and therefore the detection efficiency of the manual detection is low.

Disclosure of Invention

The utility model mainly solves the technical problem of providing a steel box girder U-rib welding detection device, which solves the problem of low detection efficiency of U-ribs in the steel box girder.

In order to solve the technical problems, the technical scheme adopted by the utility model is to provide a steel box girder U-rib welding detection device which comprises a travelling mechanism, a vertical telescopic mechanism, a transverse telescopic mechanism and a detection mechanism, wherein the vertical telescopic mechanism is arranged on the travelling mechanism, the travelling mechanism is used for travelling along a guide rail longitudinally arranged in the steel box girder, the transverse telescopic mechanism is arranged at the end part of the vertical telescopic mechanism, the vertical telescopic mechanism is used for driving the transverse telescopic mechanism to vertically move, the detection mechanism is arranged at the end part of the transverse telescopic mechanism, the transverse telescopic mechanism is used for driving the detection mechanism to transversely move, and the detection mechanism is used for detecting the U-rib in the steel box girder.

Preferably, the transverse telescopic mechanism comprises a plurality of sections of transverse telescopic arms and a transverse driving assembly, the plurality of sections of transverse telescopic arms are sequentially sleeved and connected from outside to inside, and the transverse driving assembly is arranged between two adjacent sections of transverse telescopic arms and used for driving the adjacent two sections of transverse telescopic arms to move relative to the transverse telescopic arms at the outer side.

Preferably, the transverse driving assembly comprises a rack, a gear and a transverse driving piece, wherein the rack is arranged on the end face of the transverse telescopic arm at the inner side, the transverse driving piece and the gear are arranged at the front end of the transverse telescopic arm at the outer side, the transverse driving piece is connected with the gear, and the transverse driving piece is used for driving the gear to rotate; the gear is meshed with the rack, and the transverse driving piece is meshed with the rack through the gear to drive the inner transverse telescopic arm to move relative to the outer transverse telescopic arm.

Preferably, the rack and the gear are both provided with two, the two racks are respectively longitudinally arranged at two sides of the lower end face of the inner lateral telescopic boom, the two gears are arranged at the lower part of the front end of the outer lateral telescopic boom, a rotating shaft is arranged between the two gears, and the rotating shaft is connected with the lateral driving piece through a transmission belt.

Preferably, a first auxiliary wheel is arranged on the rotating shaft, the surface of the first auxiliary wheel is abutted against the lower end face of the inner lateral telescopic arm, and the first auxiliary wheel is used for assisting the lateral telescopic arm to move.

Preferably, the lateral telescopic mechanism further comprises a second auxiliary wheel, the second auxiliary wheel is arranged at the lower side of the rear end of the lateral telescopic arm at the inner side, the surface of the second auxiliary wheel is abutted against the end face of the inner part of the lateral telescopic arm at the outer side, and the second auxiliary wheel is used for assisting the movement of the lateral telescopic arm.

Preferably, the four second auxiliary wheels are arranged at four corners of the rear end of the inner lateral telescopic arm, the two second auxiliary wheels at the lower side and the two second auxiliary wheels at the upper side are connected through a mounting rotating shaft, and the mounting rotating shaft is rotationally connected to the rear end face of the inner lateral telescopic arm through a mounting frame.

Preferably, the vertical telescopic mechanism comprises a vertical driving assembly and a plurality of sections of vertical telescopic arms, the plurality of sections of vertical telescopic arms are sequentially sleeved and connected from outside to inside, the vertical driving assembly is used for driving the vertical telescopic arms to extend and shrink, a mounting plate is arranged on the innermost vertical telescopic arm, a rotating motor is arranged at the bottom of the mounting plate and used for driving the mounting plate to rotate, and the mounting plate is used for fixing the transverse telescopic mechanism and driving the transverse telescopic mechanism to rotate.

Preferably, the running gear includes fixed plate, walking wheel and walking driving piece, and the walking wheel sets up the side at the fixed plate, and the walking driving piece sets up inside the fixed plate, and the walking driving piece is connected with the walking wheel, and the walking driving piece is used for driving the walking wheel to rotate, and the shape and the guide rail looks adaptation of walking wheel.

Preferably, the detecting mechanism comprises an adjusting member and a detecting member, the adjusting member is arranged at the tail end of the innermost transverse telescopic arm, the detecting member is arranged at the tail end of the adjusting member, the adjusting member is used for adjusting the position of the detecting member, and the detecting member is used for detecting the U rib.

The beneficial effects of the utility model are as follows: according to the utility model, the longitudinal position of the detection mechanism is changed by walking the walking mechanism on the guide rail, the vertical position of the detection mechanism is changed by stretching the vertical telescopic mechanism vertically, the transverse position of the detection mechanism is changed by stretching the transverse telescopic mechanism horizontally, the transverse telescopic mechanism is rotatable, the detection mechanism is moved to a proper position, and then the U rib is detected.

Drawings

FIG. 1 is a schematic illustration of the operation of an embodiment of the present utility model;

FIG. 2 is a schematic diagram of an embodiment of the present utility model;

FIG. 3 is a schematic view of a transverse telescopic mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic view of the structure of the front end of a portion of a lateral telescoping arm according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the rear end of a portion of a lateral telescoping arm according to one embodiment of the present utility model;

fig. 6 is a schematic structural diagram of a detection mechanism according to an embodiment of the present utility model.

Detailed Description

In order that the utility model may be readily understood, a more particular description thereof will be rendered by reference to specific embodiments that are illustrated in the appended drawings. Preferred embodiments of the present utility model are shown in the drawings. This utility model may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this utility model belongs. The terminology used in the description of the utility model herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the utility model. The term "and/or" as used in this specification includes any and all combinations of one or more of the associated listed items.

For the description of the present utility model, the labels "front", "rear", "up", "down", "left" and "right" shown in fig. 1 are used for non-limiting purposes to facilitate understanding of this embodiment and are not intended to limit the present utility model. Wherein, the front-back direction represents the longitudinal direction, the left-right direction represents the transverse direction, and the up-down direction represents the vertical direction.

Fig. 1-6 show an embodiment of the utility model, which comprises a travelling mechanism 1, a vertical telescopic mechanism 2, a horizontal telescopic mechanism 3 and a detection mechanism 4, wherein the vertical telescopic mechanism 2 is arranged on the travelling mechanism 1, the travelling mechanism 1 is used for travelling along a guide rail 5 longitudinally arranged in a steel box girder, the horizontal telescopic mechanism 3 is arranged at the end part of the vertical telescopic mechanism 2, the vertical telescopic mechanism 2 is used for driving the horizontal telescopic mechanism 3 to vertically move, the detection mechanism 4 is arranged at the end part of the horizontal telescopic mechanism 3, the horizontal telescopic mechanism 3 is used for driving the detection mechanism 4 to horizontally move, and the detection mechanism 4 is used for detecting a U rib in the steel box girder.

The vertical position of the detection mechanism 4 is changed by walking the travelling mechanism 1 on the guide rail 5, the vertical position of the detection mechanism 4 is changed by stretching the vertical telescopic mechanism 2 vertically, the transverse position of the detection mechanism 4 is changed by stretching the transverse telescopic mechanism 3 transversely, the detection mechanism 4 moves to a proper position, and then the U ribs are detected.

In the initial stage of operation, the vertical telescopic mechanism 2 and the horizontal telescopic mechanism 3 are not extended yet, and the longitudinal position of the detection mechanism 4 is changed by moving the travelling mechanism 1 longitudinally along the guide rail 5.

Preferably, as shown in fig. 1 and 2, the travelling mechanism 1 comprises a fixed plate 11, travelling wheels 12 and travelling driving members (not shown in the drawings), the travelling wheels 12 are arranged on the side edges of the fixed plate 11, the travelling driving members are arranged inside the fixed plate 11 and are connected with the travelling wheels 12, the travelling driving members are used for driving the travelling wheels 12 to rotate, and the travelling wheels 12 are matched with the guide rails 5 in shape. In this embodiment, four travelling wheels 12 are used, and each pair of travelling wheels 12 are respectively arranged on the left side and the right side of the fixed plate 11, and the travelling wheels 12 are clamped in the guide rail 5. The travelling drive member may be a motor, and is connected to the travelling wheel 12, and drives the travelling wheel 12 to move longitudinally along the longitudinal rail 5 by the travelling drive member, thereby realizing rapid change of the longitudinal position of the detection mechanism 4.

After the travelling mechanism 1 travels to a proper position, the vertical telescopic mechanism 2 starts to stretch, and the vertical position of the detection mechanism 4 is further changed.

Preferably, as shown in fig. 2, the vertical telescopic mechanism 2 includes a vertical driving assembly (not shown in the drawing) and a plurality of sections of vertical telescopic arms 21, the plurality of sections of vertical telescopic arms 21 are sequentially sleeved and connected from outside to inside, the vertical driving assembly is used for driving the vertical telescopic arms 21 to extend and shrink, a mounting plate 6 is arranged on the innermost vertical telescopic arm 21, a rotating motor (not shown in the drawing) is arranged at the bottom of the mounting plate 6, the rotating motor is used for driving the mounting plate 6 to rotate, and the mounting plate 6 is used for fixing the transverse telescopic mechanism 3 and driving the transverse telescopic mechanism 3 to rotate.

The vertical driving assembly is arranged in the vertical telescopic arm 21, and the telescopic operation of the multi-section vertical telescopic arm 21 is mainly realized through a screw rod, a sliding block, a rope and the like, and the details are not repeated here. The vertical driving assembly drives the vertical telescopic arm 21 to extend vertically, and when the vertical telescopic mechanism 2 extends to a position adjacent to the lower side of the steel box girder, the transverse telescopic mechanism 2 further extends in the transverse direction, so that the transverse position of the detection mechanism 4 is changed.

The two transverse telescopic mechanisms 3 are respectively and oppositely arranged on the mounting plate 6, the two transverse telescopic mechanisms 3 respectively face to the left side and the right side, one transverse telescopic mechanism 3 can extend to the left side of the vertical telescopic mechanism 2, and the other transverse telescopic mechanism 3 can extend to the right side of the vertical telescopic mechanism 2. The rotating motor drives the mounting plate 6 to rotate, the mounting plate 6 further drives the two transverse telescopic mechanisms 3 to rotate, and the detection mechanism 4 is arranged at the tail ends of the two transverse telescopic mechanisms, so that the detection mechanism 4 is driven to rotate to detect the U-shaped ribs. The two transverse telescopic mechanisms 3 are arranged on the mounting plate 6, compared with the top ends of the vertical telescopic arms 21 which are directly arranged at the innermost side, the fixing area is larger, the transverse telescopic mechanisms 3 are prevented from shaking in the moving process, and the detection of the detection mechanism 4 is facilitated.

Preferably, as shown in fig. 3, the transverse telescopic mechanism 3 includes a plurality of sections of transverse driving assemblies 31 and transverse telescopic arms 32, the sections of transverse telescopic arms 32 are sequentially sleeved and connected from outside to inside, the transverse driving assemblies 31 are arranged between two adjacent sections of transverse telescopic arms 32 and used for driving the adjacent two sections of transverse telescopic arms 32, and the inner transverse telescopic arm 32 moves relative to the outer transverse telescopic arm 32.

In the utility model, the transverse telescopic mechanism 3 comprises six sections of transverse telescopic arms 32, and the number of the sections of the transverse telescopic arms 32 can be increased or decreased according to actual needs. In the following description, the first transverse telescopic arm 321 and the second transverse telescopic arm 322 are taken as an example, the first transverse telescopic arm 321 is sleeved in the second transverse telescopic arm 322, the transverse driving assembly 31 is arranged between the first transverse telescopic arm 321 and the second transverse telescopic arm 322, and the transverse driving assembly 31 drives the first transverse telescopic arm 321 to move out of the second transverse telescopic arm 322, so that the extension of the transverse telescopic mechanism 3 is realized, and the transverse position of the detection mechanism 4 is further changed. The telescoping process between the sections of transverse telescoping arms 32 is identical and will not be described in detail herein.

The transverse driving assembly 31 can adopt a mode of combining a screw rod, a sliding block and a rope, and can also adopt a mode of combining a rack 311 and a gear 312, and the two modes can realize the movement of driving the transverse telescopic arm 32, however, the combination mode of the screw rod, the sliding block and the rope has a complex structure, and is more troublesome in installation and maintenance.

Preferably, as shown in fig. 4, the transverse driving assembly 31 includes a rack 311, a gear 312 and a transverse driving member 313, the rack 311 is disposed on an end surface of the inner transverse telescopic arm 32, the transverse driving member 313 and the gear 312 are disposed at a front end of the outer transverse telescopic arm 32, the transverse driving member 313 is connected with the gear 312, and the transverse driving member 313 is used for driving the gear 312 to rotate; the gear 312 is meshed with the rack 311, and the transverse driving piece 313 is meshed with the rack 311 through the gear 312 to drive the inner transverse telescopic arm 32 to move relative to the outer transverse telescopic arm 32. Be provided with rack 311 on the terminal surface of first horizontal flexible arm 321, the front end of second horizontal flexible arm 322 is provided with horizontal driving piece 313 and gear 312, and gear 312 and rack 311 meshing, horizontal driving piece 313 can be the motor, and horizontal driving piece 313 is connected with gear 312, and horizontal driving piece 313 drives gear 312 rotation to make first horizontal flexible arm 321 shift out second horizontal flexible arm 322, adopt rack 311 and gear 312's combination mode, the structure is simpler, and it is more convenient during installation and maintenance.

The rack 311 and the gear 312 may be provided only one, and when only one rack 311 and gear 312 are provided, the supporting effect on the lateral telescopic arm 32 is poor, resulting in instability of the lateral telescopic arm 32 in the moving process.

Preferably, as shown in fig. 4, two racks 311 and two gears 312 are provided, the two racks 311 are respectively longitudinally disposed at two sides of the lower end surface of the inner lateral telescopic arm 32, the two gears 312 are disposed at the lower part of the front end of the outer lateral telescopic arm 32, a rotation shaft 314 is disposed between the two gears 312, and the rotation shaft 314 is connected with the lateral driving member 313 through a transmission belt. The two racks 311 are respectively arranged at the left and right sides of the lower end surface of the first transverse telescopic arm 321, the two gears 312 at the front end of the second transverse telescopic arm 322 are arranged at the left and right ends of the rotating shaft 314 and meshed with the two racks 311, the two gears 312 are further driven to rotate through the transmission connection of the transverse driving piece 313 and the rotating shaft 314, the movement of the first transverse telescopic arm 321 is synchronously driven, and the stability of the transverse telescopic arm 321 in the moving process is improved.

Preferably, as shown in fig. 3 and 4, a first auxiliary wheel 315 is disposed on the rotating shaft 314, and the surface of the first auxiliary wheel 315 abuts against the lower end surface of the inner lateral telescopic arm 32, and the first auxiliary wheel 315 is used for assisting the movement of the lateral telescopic arm 32. The surface of two first auxiliary wheels 315 is contradicted on the lower terminal surface of first horizontal flexible arm 321, when first horizontal flexible arm 321 shifts out the horizontal flexible arm 322 of second, two first auxiliary wheels 315 also synchronous rotation, the lower terminal surface of first horizontal flexible arm 321 is along the surface roll-off of two first auxiliary wheels 315, first auxiliary wheels 315 not only can play the supporting role to first horizontal flexible arm 321, still played the effect that supplementary first horizontal flexible arm 321 removed for the removal of first horizontal flexible arm 321 is smoother and steady more.

Preferably, as shown in fig. 3 and 5, the lateral telescopic mechanism 3 further includes a second auxiliary wheel 316, the second auxiliary wheel 316 is disposed at a lower side of a rear end of the inner lateral telescopic arm 32, a surface of the second auxiliary wheel 316 abuts against an inner end surface of the outer lateral telescopic arm 32, and the second auxiliary wheel 316 is used for assisting the movement of the lateral telescopic arm 32. The second auxiliary wheel 316 plays a supporting role on the rear end of the transverse telescopic arm 32 in the moving process of the first transverse telescopic arm 321, and meanwhile, the second auxiliary wheel 316 slides along the lower end face of the second transverse telescopic arm 322 to assist the movement of the first transverse telescopic arm 321.

Preferably, as shown in fig. 3 and 5, the second auxiliary wheels 316 are provided with four second auxiliary wheels 316, which are respectively located at four corners of the rear end of the inner lateral telescopic arm 32, and the two second auxiliary wheels 316 at the lower side and the two second auxiliary wheels 316 at the upper side are respectively connected by a mounting shaft 318, and the mounting shaft 318 is rotatably connected to the rear end surface of the inner lateral telescopic arm 32 by a mounting frame 317. By installing the installation shaft 318 on the installation frame 317, two second auxiliary wheels 316 are installed at both ends of the installation shaft 318, so that the installation of the second auxiliary wheels 316 is more firm, and the installation shaft 318 ensures the sliding consistency of the two second auxiliary wheels 316. The two second auxiliary wheels 316 on the upper side play a role in assisting sliding, and the two second auxiliary wheels 316 on the lower side play a role in supporting and assisting sliding.

After the lateral telescoping arm 32 is extended into place, the detection mechanism 4 begins to detect the U-ribs.

Preferably, as shown in fig. 2 and 6, the detecting mechanism 4 includes an adjusting member 41 and a detecting member 42, the adjusting member 41 is disposed at the end of the innermost transverse telescopic arm 32, the adjusting member 41 is a mechanical arm, the adjusting member 41 can be further extended and rotated, the detecting member 42 is disposed at the end of the adjusting member 41, the detecting member 42 can be a tele camera or a wide camera, etc., the adjusting member 41 is used for adjusting the position of the detecting member 42, and the detecting member 42 is used for detecting the U rib. The position of the detecting piece 42 is further adjusted through the adjusting piece 41, the detecting piece 42 detects the U rib, the detecting mechanism 4 can detect a visual blind area which cannot be observed by human eyes, the detecting speed is higher, and the detecting efficiency is higher.

Therefore, the utility model discloses a steel box girder U-rib welding detection device which comprises a running mechanism, a vertical telescopic mechanism, a transverse telescopic mechanism and a detection mechanism, wherein the vertical telescopic mechanism is arranged on the running mechanism, the running mechanism is used for running along a guide rail longitudinally arranged in the steel box girder, the transverse telescopic mechanism is arranged at the end part of the vertical telescopic mechanism, the vertical telescopic mechanism is used for driving the transverse telescopic mechanism to vertically move, the detection mechanism is arranged at the end part of the transverse telescopic mechanism, the transverse telescopic mechanism is used for driving the detection mechanism to transversely move, and the detection mechanism is used for detecting the U-rib in the steel box girder.

The vertical telescopic mechanism stretches and contracts in the vertical direction to change the vertical position of the detection mechanism through the longitudinal position of the detection mechanism which is changed by walking of the walking mechanism on the guide rail, the transverse telescopic mechanism stretches and contracts in the transverse direction to change the transverse position of the detection mechanism and is rotatable, the detection mechanism detects the U rib after moving to a proper position, the longitudinal, vertical and transverse positions of the detection mechanism can be adjusted in a short time, the detection speed is improved, and the detection efficiency is higher.

The foregoing is only illustrative of the present utility model and is not to be construed as limiting the scope of the utility model, and all equivalent structural changes made by the present utility model and the accompanying drawings, or direct or indirect application in other related technical fields, are included in the scope of the present utility model.

Claims (10)

1. The utility model provides a steel case roof beam U rib welding detection device, its characterized in that, includes running gear, vertical telescopic machanism, horizontal telescopic machanism and detection mechanism, vertical telescopic machanism sets up running gear is last, running gear is used for following the guide rail walking that vertically set up in the steel case roof beam, horizontal telescopic machanism sets up vertical telescopic machanism's tip, vertical telescopic machanism is used for driving horizontal telescopic machanism vertical movement, detection mechanism sets up horizontal telescopic machanism's tip, horizontal telescopic machanism is used for driving detection mechanism lateral movement, detection mechanism is used for detecting U rib in the steel case roof beam.

2. The welding detection device for the U-ribs of the steel box girder according to claim 1, wherein the transverse telescopic mechanism comprises a plurality of sections of transverse telescopic arms and a transverse driving assembly, the sections of transverse telescopic arms are sequentially sleeved and connected from outside to inside, and the transverse driving assembly is arranged between two adjacent sections of transverse telescopic arms and is used for driving the inner side of the two adjacent sections of transverse telescopic arms to move relative to the outer side of the transverse telescopic arms.

3. The steel box girder U-rib welding detection device according to claim 2, wherein the transverse driving assembly comprises a rack, a gear and a transverse driving piece, the rack is arranged on the end face of the inner transverse telescopic arm, the transverse driving piece and the gear are arranged at the front end of the outer transverse telescopic arm, the transverse driving piece is connected with the gear, and the transverse driving piece is used for driving the gear to rotate; the gear is meshed with the rack, and the transverse driving piece is meshed with the rack through the gear to drive the inner transverse telescopic arm to move relative to the outer transverse telescopic arm.

4. The steel box girder U-rib welding detection device according to claim 3, wherein two racks and gears are provided, the two racks are respectively longitudinally arranged at two sides of the lower end face of the inner transverse telescopic arm, the two gears are arranged at the lower part of the front end of the outer transverse telescopic arm, a rotating shaft is arranged between the two gears, and the rotating shaft is connected with the transverse driving piece through a transmission belt.

5. The welding detection device for the U-ribs of the steel box girder according to claim 4, wherein a first auxiliary wheel is arranged on the rotating shaft, the surface of the first auxiliary wheel is abutted against the lower end face of the transverse telescopic arm on the inner side, and the first auxiliary wheel is used for assisting the movement of the transverse telescopic arm.

6. The steel box girder U-rib welding inspection device according to claim 4, wherein the lateral telescoping mechanism further comprises a second auxiliary wheel provided at a lower side of a rear end of the lateral telescoping arm at an inner side, a surface of the second auxiliary wheel abutting at an end face of an inner portion of the lateral telescoping arm at an outer side, the second auxiliary wheel being for assisting the lateral telescoping arm to move.

7. The welding detection device for the U-ribs of the steel box girder according to claim 6, wherein four second auxiliary wheels are arranged at four corners of the rear end of the inner lateral telescopic arm, two second auxiliary wheels at the lower side and two second auxiliary wheels at the upper side are respectively connected through a mounting rotating shaft, and the mounting rotating shaft is rotatably connected to the rear end face of the inner lateral telescopic arm through a mounting frame.

8. The steel box girder U rib welding detection device according to claim 1, wherein the vertical telescopic mechanism comprises a vertical driving assembly and a plurality of sections of vertical telescopic arms, the plurality of sections of vertical telescopic arms are sequentially sleeved and connected from outside to inside, the vertical driving assembly is used for driving the vertical telescopic arms to extend and shrink, a mounting plate is arranged on the innermost vertical telescopic arm, a rotating motor is arranged at the bottom of the mounting plate, the rotating motor is used for driving the mounting plate to rotate, and the mounting plate is used for fixing the transverse telescopic mechanism and driving the transverse telescopic mechanism to rotate.

9. The steel box girder U-rib welding detection device according to claim 1, wherein the traveling mechanism comprises a fixed plate, traveling wheels and traveling driving parts, the traveling wheels are arranged on the side edges of the fixed plate, the traveling driving parts are arranged inside the fixed plate and connected with the traveling wheels, the traveling driving parts are used for driving the traveling wheels to rotate, and the traveling wheels are matched with the guide rails in shape.

10. The steel box girder U-rib welding detection device according to claim 2, wherein the detection mechanism comprises an adjusting member and a detection member, the adjusting member is disposed at the end of the innermost transverse telescopic arm, the detection member is disposed at the end of the adjusting member, the adjusting member is used for adjusting the position of the detection member, and the detection member is used for detecting the U-rib.