External gouging device for combined section of split arched girder

Abstract

The invention relates to an external gouging device for a combined section of a split arched girder. The gouging device comprises a walking chassis, a gouging device and a gouging device, the rotating bracket is rotatably and adjustably arranged on the walking chassis; the positioning mechanism is rotatably and adjustably arranged on the rotating bracket, and can be telescopically adjusted so as to be propped against a corresponding part of the arch rib after being rotated by a set angle; the tracks are rotatably and adjustably arranged on the rotating bracket and are positioned on the two sides of the positioning mechanism; the air gouging gun is arranged on the two rails in a sliding manner and can be telescopically adjusted; the driving mechanism is arranged on the rotating bracket, is in driving connection with the positioning mechanism and can drive the positioning mechanism to rotate and adjust; and the speed reducing mechanism is arranged between the driving mechanism and the corresponding track, through the arrangement of the speed reducing mechanism, the driving mechanism can drive the track to rotate and adjust, and the rotating adjusting angle of the track is half of the rotating adjusting angle of the positioning mechanism. The gouging device is used for replacing manual gouging, the gouging groove quality is guaranteed, the labor cost is saved, and the operation efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of component welding auxiliary devices, in particular to a split-type arch-beam joint section external gouging device. Background Art

[0002] Steel box arch bridge manufacturing technology is an important technology in bridge engineering, especially the manufacturing quality of the junction between the arch rib and the steel box girder (referred to as the arch-beam junction section) is critical. Usually, the arch rib component at the end of the arch-beam junction section extends directly into the steel box girder to form an integral structure.

[0003] After the top surface of the steel box girder and the contact position of the arch rib member are welded through penetration welding, the outside of the contact position also needs to be welded. Before welding, it is necessary to gouge the connection between the arch rib member and the top surface of the steel box girder, and then do the external penetration welding after gouging. The gouging process is difficult to do manually, and the size of the arch beam joint section is huge, and the work intensity is also high. In addition, the quality after manual gouging is not high, such as the depth of the gouging groove is not uniform, the gouging groove is not straight, etc. The poor quality of the gouging groove will make it impossible to use automatic welding for subsequent welding operations. Summary of the invention

[0004] The purpose of the present invention is to overcome the defects of the prior art and provide a split arch-beam joint section external gouging device to solve the problems of the existing manual gouging such as difficult operation, high work intensity and low quality.

[0005] The technical solution to achieve the above purpose is:

[0006] The present invention provides a split-type arch-beam joint section external gouging device, which is used for gouging the external connection between the arch rib and the steel box beam. The gouging device comprises:

[0007] A walking chassis capable of walking on the steel box girder;

[0008] A rotatable and adjustable rotating bracket provided on the walking chassis;

[0009] A rotatably adjustable positioning mechanism disposed on the rotating bracket, the positioning mechanism also being telescopically adjustable so as to abut against a corresponding portion of the arch rib after being rotated to a set angle;

[0010] Tracks that are rotatably adjustable and arranged on the rotating bracket and located on both sides of the positioning mechanism;

[0011] A gouging gun that is mounted on two tracks and can be telescopically adjusted;

[0012] A driving mechanism disposed on the rotating bracket, the driving mechanism being connected to the positioning mechanism and capable of driving the positioning mechanism to perform rotation adjustment;

[0013] A speed reduction mechanism is provided between the driving mechanism and the corresponding track. Through the arrangement of the speed reduction mechanism, the driving mechanism can drive the track to rotate and adjust, and the rotation adjustment angle of the track is half of the rotation adjustment angle of the positioning mechanism.

[0014] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that the speed reduction mechanism includes a first-stage planetary gear carrier connected to the motor shaft of the driving mechanism, a first-stage planetary gear rotatably adjusted on the first-stage planetary gear carrier, a sun gear provided on the first-stage planetary gear carrier and meshing with the first-stage planetary gear, a second-stage planetary gear carrier connected to the wheel shaft of the sun gear, and a second-stage planetary gear rotatably adjusted on the second-stage planetary gear carrier;

[0015] The second-stage planetary gear carrier is connected to the corresponding track.

[0016] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that the speed reduction mechanism further includes a housing, and the housing is provided with a first-stage internal gear ring corresponding to the first-stage planetary gear and a second-stage internal gear ring corresponding to the second-stage planetary gear;

[0017] The first-stage planetary gear meshes with the first-stage internal gear ring;

[0018] The second-stage planetary gear meshes with the second-stage internal gear ring.

[0019] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that the driving mechanism includes two double-shaft driving motors, and the two double-shaft driving motors are arranged on both sides of the positioning mechanism;

[0020] There are two speed reduction mechanisms, which are respectively located between the double-shaft driving motor and the corresponding track;

[0021] One motor shaft of the double-shaft driving motor is drivingly connected to the positioning mechanism, and the other motor shaft is drivingly connected to the corresponding speed reduction mechanism.

[0022] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that a rotatable magnet wheel is provided at the bottom of the positioning mechanism.

[0023] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that the positioning mechanism includes a connecting rod rotatably arranged on the rotating bracket, a telescopic driving member connected to the connecting rod, a rotary driving member connected to the bottom of the telescopic driving member, and a wheel seat connected to the bottom of the rotary driving member;

[0024] The driving mechanism is drivingly connected to the connecting rod to drive the connecting rod to rotate and adjust;

[0025] The telescopic driving member can drive the rotary driving member to perform telescopic adjustment;

[0026] The rotary driving member can drive the wheel seat to perform rotational adjustment;

[0027] The magnet wheel is rotatably arranged on the wheel seat.

[0028] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that a contact sensor is provided on the magnet wheel.

[0029] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that a distance measuring sensor is provided on the rotary bracket.

[0030] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that a movable and adjustable protective cover is provided on the rotary bracket corresponding to the distance measuring sensor.

[0031] A further improvement of the external air gouging device for the split arch beam joint section of the present invention lies in that a rotatable internal gear slewing bearing, a driving gear drivingly connected to the internal gear ring of the internal gear slewing bearing, and a driving motor drivingly connected to the driving gear are provided on the traveling chassis;

[0032] The internal gear slewing bearing is connected to the rotary bracket.

[0033] The beneficial effects of the external air gouging device for the split arch beam joint section of the present invention are as follows:

[0034] The air gouging device of the present invention can travel along the shape trajectory of the intersection of the arch rib and the steel box girder, replacing manual air gouging, ensuring the accurate position of air gouging, and ensuring the quality of the air gouging groove.

[0035] The air gouging device of the present invention can ensure that the positioning mechanism is accurately supported on the side of the arch rib by setting the rotary bracket and the distance measuring sensor, and a movable and adjustable protective cover is also provided on the distance measuring sensor, which can effectively protect the distance measuring sensor.

[0036] The air gouging device of the present invention is provided with a speed reduction mechanism, and the rotation angle of the track is half of the rotation angle of the positioning mechanism, which can accurately position the air gouging gun at the intersection of the arch rib and the steel box girder.

[0037] The air gouging device of the present invention is provided with a track, and the air gouging gun can slide along the track to complete the air gouging work at the corner position of the arch rib.

[0038] The positioning mechanism of the air gouging device of the present invention is provided with a magnet wheel, which can ensure positioning and can also travel along the side of the arch rib to complete the air gouging work. Description of the Drawings

[0039] Figure 1 This is a three-dimensional structural diagram of the working state of the external air gouging device for the split arch beam joint section of the present invention.

[0040] Figure 2 This is a side view of the working state of the external air gouging device for the split arch beam joint section of the present invention.

[0041] Figure 3 This is a three-dimensional structural diagram of the retracted state of the external air gouging device for the split arch beam joint section of the present invention.

[0042] Figure 4 It is Figure 3 a partial enlarged schematic diagram at position A in

[0043] Figure 5 This is a structural diagram of the walking chassis and the rotating bracket in the external air gouging device for the split arch beam joint section of the present invention.

[0044] Figure 6 This is a structural diagram of the walking chassis of the external air gouging device for the split arch beam joint section of the present invention with the bottom housing omitted.

[0045] Figure 7 This is a structural diagram of the positioning mechanism in the external air gouging device for the split arch beam joint section of the present invention.

[0046] Figure 8 This is a structural diagram of the speed reduction mechanism in the external air gouging device for the split arch beam joint section of the present invention.

[0047] Figure 9 This is a cross-sectional view of the speed reduction mechanism in the external air gouging device for the split arch beam joint section of the present invention.

[0048] Figure 10 This is a structural diagram of the track and the air gouging gun in the external air gouging device for the split arch beam joint section of the present invention. Detailed implementation manners

[0049] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.

[0050] Refer to Figure 1 , the present invention provides an external air gouging device for the split arch beam joint section, which is used to replace manual air gouging, ensure the quality of the air gouging groove, save labor costs, and improve the operation efficiency. The external air gouging device for the split arch beam joint section of the present invention will be described below in conjunction with the accompanying drawings.

[0051] Refer to Figure 1 , which shows a three-dimensional structural diagram of the working state of the external air gouging device for the split arch beam joint section of the present invention. Refer to Figure 2 , which shows a side view of the working state of the external air gouging device for the split arch beam joint section of the present invention. Below in conjunction withFigure 1 and Figure 2 , the external air gouging device for the split arch beam joint section of the present invention will be described.

[0052] As Figure 1 and Figure 2 shown, the external air gouging device for the split arch beam joint section of the present invention is used for air gouging operation on the external connection part between the arch rib 11 and the steel box girder 12. The air gouging device includes a walking chassis 21, a rotating bracket 22, a positioning mechanism 23, a track 24, an air gouging gun 25, a driving mechanism and a speed reducing mechanism 26. Among them, the walking chassis 21 can walk on the steel box girder 12 to facilitate moving the device to the working position; the rotating bracket 22 is rotatably adjustable and arranged on the walking chassis 21, and the rotating bracket 22 can be rotationally adjusted relative to the walking chassis 21; the positioning mechanism 23 is rotatably adjustable and arranged on the rotating bracket 22, and the positioning mechanism 23 can be telescopically adjusted to be abutted against the corresponding part of the arch rib 11 after being rotated by a set angle and then telescopically adjusted; the track 24 is rotatably adjustable and arranged on the rotating bracket 22 and is located on both sides of the positioning mechanism 23; the air gouging gun 25 is slidably arranged on the two tracks 24 and can be telescopically adjusted; the driving mechanism is arranged on the rotating bracket 22, and the driving mechanism is drivingly connected with the positioning mechanism 23 and can drive the positioning mechanism 23 to be rotationally adjusted; the speed reducing mechanism 26 is arranged between the driving mechanism and the corresponding track 24. Through the setting of the speed reducing mechanism 26, the driving mechanism can drive the track 24 to be rotationally adjusted, and the rotation angle of the track 24 is half of the rotation angle of the positioning mechanism 23.

[0053] Next, the working principle of the external air gouging device for the split arch beam joint section of the present invention will be described.

[0054] In use, place the air gouging device on the steel box girder 12. The air gouging device travels on the steel box girder 12 through the traveling chassis 21 to bring the air gouging gun 25 to the working position. Rotate and adjust the rotating bracket 22 to make the air gouging gun 25 face the side of the arch rib 11, minimizing the distance between the air gouging gun 25 and the arch rib 11. Then, the driving mechanism activates the driving and positioning mechanism 23 and the air gouging gun 25 to rotate and open in the direction of the arch rib 11. During the rotation, the positioning mechanism 23 extends a set distance. When the positioning mechanism 23 rotates to abut against the side of the arch rib 11, the driving mechanism stops operating. The rotation adjustment of the air gouging gun 25 is half of the rotation angle of the positioning mechanism 23. At this time, the air gouging gun 25 corresponds to the junction of the arch rib 11 and the steel box girder 12. Extend the air gouging gun 25 so that the working head of the air gouging gun 25 contacts the junction of the arch rib 11 and the steel box girder 12. The air gouging gun 25 starts working to perform air gouging operations on the junction of the arch rib 11 and the steel box girder 12 to form an air gouging groove. When the air gouging gun 25 starts working, the traveling chassis 21 travels on the steel box girder 12 along the installation direction of the arch rib 11 to enable the air gouging gun 25 to complete the air gouging operation. For the end part of the side of the arch rib 11 (i.e., the junction of one side and another side), the traveling chassis 21 can stop moving, and the air gouging gun 25 can move along the track 24 to complete the air gouging operation at the corresponding end part.

[0055] Preferably, both the positioning mechanism 23 and the air gouging gun 25 are initially perpendicular to the ground or the top surface of the steel box girder 12, that is, both the positioning mechanism 23 and the air gouging gun 25 are in a vertical state. At this time, it can be defined as the retracted state, as Figure 3 shown. The rotating bracket 22 rotates to make both the positioning mechanism 23 and the air gouging gun 25 face the side of the arch rib 11, minimizing the distance between the positioning mechanism 23, the air gouging gun 25 and the arch rib 11. At this time, the positioning mechanism 23 is perpendicular to the top surface of the steel box girder 12, and the distance from the rotation center of the positioning mechanism 23 to the top surface of the steel box girder 12 is a preset length. When the positioning mechanism 23 is rotated and adjusted, the positioning mechanism 23 is extended to the preset length, that is, the distance from the rotation center of the positioning mechanism 23 to the bottom edge of the positioning mechanism 23 is equal to the preset length. When the positioning mechanism 23 rotates to make its bottom contact the side of the arch rib 11, the positioning mechanism 23 is perpendicular to the side of the arch rib 11, and the rotation angle of the air gouging gun 25 is equal to half of the rotation angle of the positioning mechanism 23. At this time, after the air gouging gun 25 is extended, it must contact the junction position of the arch rib 11 and the steel box girder 12.

[0056] In a specific embodiment of the present invention, as Figure 3 and Figure 4 shown, a distance measuring sensor 223 is provided on the rotating bracket 22.

[0057] During the rotation adjustment of the rotating bracket 22, the distance measuring sensor 223 is used to detect the distance from its side to the side of the arch rib 11. When the detected distance is the smallest, it indicates that the distance measuring sensor 223 faces the side of the arch rib 11. Specifically, when the distance measuring sensor 223 detects that the distance from it to the arch rib 11 becomes smaller at the front and rear detection moments, it indicates that the distance measuring sensor 223 rotates and adjusts in the direction of the minimum distance. When the distance measuring sensor 223 detects that the distance from it to the arch rib 11 becomes larger at the front and rear detection moments, it indicates that the distance measuring sensor 223 passes through the minimum distance and rotates and adjusts in the direction away from the minimum distance. Therefore, the rotation of the rotating bracket 22 is controlled by the distance detected by the distance measuring sensor 223, so that the rotating bracket 22 rotates and adjusts to the position where the distance between the distance measuring sensor 223 and the side of the arch rib 11 is the smallest. The positions of the distance measuring sensor 223, the positioning mechanism 23 and the air gouging gun 25 correspond to each other. In this way, the distances between the positioning mechanism 23 and the air gouging gun 25 and the side of the arch rib 11 are also the smallest.

[0058] Furthermore, a movable and adjustable protective cover 224 is provided on the rotating bracket 22 corresponding to the distance measuring sensor 223. Through the setting of the protective cover 224, when the distance measuring sensor 223 is not needed, the distance measuring sensor 223 can be covered by the protective cover 224, which can protect the distance measuring sensor 223 during the air gouging operation.

[0059] Specifically, a support plate 222 is provided at the bottom of the rotating bracket 22. The support plate 222 is used to install the distance measuring sensor 223 and the protective cover 224. The support plate 222 includes a horizontal part connected to the rotating bracket 22 and a vertical part connected to the horizontal part. Part of the vertical part corresponds to the position of the traveling chassis 21, and the distance measuring sensor 223 is installed on the vertical part. The protective cover 224 is buckled on the vertical part, and an adjustment mechanism is provided between the protective cover 224 and the horizontal part. The adjustment mechanism can be used to drive the protective cover 224 to move and adjust. Initially, the protective cover 224 covers the distance measuring sensor 223. When in use, the adjustment mechanism is used to drive the protective cover 224 to move upward to expose the distance measuring sensor 223.

[0060] The adjustment mechanism is preferably a spring 225 and an electromagnet. The spring 225 is supported and connected between the horizontal part and the protective cover 224. The electromagnets are arranged in pairs on the horizontal part and the protective cover 224. When the electromagnets are energized, they generate magnetism and attract each other, compressing the spring 225 and thus moving the protective cover 224 upward to expose the distance measuring sensor 223. After the distance measuring sensor 223 is used, the electromagnet is powered off, and the protective cover 224 moves downward under the action of the spring 225 to cover the distance measuring sensor 223.

[0061] Still further, the distance measuring sensor 223 is preferably a laser distance measuring sensor.

[0062] In a specific embodiment of the present invention, as Figure 5 and Figure 6 shown, a plurality of traveling wheels 211 are provided on the traveling chassis 21, and the traveling wheels 221 are driven to rotate by a driving mechanism such as a motor, thereby realizing the traveling function of the traveling chassis 21.

[0063] Furthermore, an electromagnet is provided on the traveling wheel 211, which can be adsorbed on the steel box girder, improving the structural stability of the device. On the one hand, the adsorption of the electromagnet plays a role in fixing, and on the other hand, it does not affect the rotation of the traveling wheel 221.

[0064] Still further, a rotatable internal gear slewing bearing 212, a driving gear 213 drivingly connected to the internal gear ring of the internal gear slewing bearing 212, and a driving motor drivingly connected to the driving gear 213 are provided on the traveling chassis 21; the internal gear slewing bearing 212 is connected to the rotating bracket 22. The driving motor drives the driving gear 213 to rotate, and the driving gear 213 drives the internal gear ring of the internal gear slewing bearing 212 to rotate. Furthermore, the internal gear ring of the internal gear slewing bearing 212 drives the rotating bracket 22 to rotate and adjust together, realizing the rotation and adjustment of the rotating bracket 22.

[0065] In a specific embodiment of the present invention, as Figure 5 shown, a pair of relatively arranged mounting ear plates 221 are formed at the top of the rotating bracket 22. Connecting holes are provided on the mounting ear plates 221, and a driving mechanism is arranged at the connecting holes. Combining Figure 1 and Figure 7 shown, the positioning mechanism 23 includes a connecting rod 232, which is rotatably arranged on the rotating bracket 22. Preferably, the connecting rod 232 is rotatably arranged between a pair of mounting ear plates 221. The driving shaft of the driving mechanism is drivingly connected to the corresponding end of the connecting rod 232, and the connecting rod 232 is driven to rotate and adjust by the driving mechanism.

[0066] Furthermore, as Figure 2 and Figure 7 shown, a rotatable magnet wheel 231 is provided at the bottom of the positioning mechanism 23. The magnet wheel 231 can rotate on the surface of the arch rib 11 to cooperate with the traveling of the traveling chassis 21; the magnet wheel 231 can also be adsorbed and fixed on the side surface of the arch rib 11, playing a role in positioning the device.

[0067] Still further, a contact sensor 237 is provided on the magnet wheel 231. The contact sensor 237 is used to detect whether the magnet wheel 231 is in contact with the side surface of the arch rib 11. When the contact sensor 237 detects contact with the side surface of the arch rib 11, the driving mechanism can be controlled to stop driving the positioning mechanism 23 to rotate and adjust.

[0068] Furthermore, the positioning mechanism 23 further includes a telescopic driving member 233 connected to the connecting rod 232, a rotary driving member 234 connected to the bottom of the telescopic driving member 233, and a wheel seat 235 connected to the bottom of the rotary driving member 234; the driving mechanism is drivingly connected to the connecting rod 232 to drive the connecting rod 232 to rotate and adjust; the telescopic driving member 233 can drive the rotary driving member 234 to perform telescopic adjustment; the rotary driving member 234 can drive the wheel seat 235 to perform rotary adjustment; the magnet wheel 231 is rotatably arranged on the wheel seat 235.

[0069] The rotary driving member 234 drives the wheel seat 235 to perform rotary adjustment to adjust the orientation of the magnet wheel 231 so that the traveling direction of the magnet wheel 231 is consistent with the traveling direction of the traveling chassis 21. Through the telescopic adjustment of the telescopic driving member 233, the distance between the rotation center of the connecting rod 232 and the bottom edge of the magnet wheel 231 can be adjusted.

[0070] The rotary driving member 234 is preferably a rotary electric cylinder, or the rotary driving member 234 is a driving structure composed of a motor, a gear, and an internal gear slewing bearing.

[0071] The telescopic driving member 233 is preferably a telescopic electric cylinder or a telescopic air cylinder.

[0072] Furthermore, a pair of length-adjustable guide rods 236 are also arranged between the rotary driving member 234 and the connecting rod 232. The pair of guide rods 236 are arranged on both sides of the telescopic driving member 233. The guide rod 236 includes a first sleeve rod connected to the connecting rod 232 and a second sleeve rod inserted into the first sleeve rod. The end of the second sleeve rod is connected to the rotary driving member 234. The relative position of the second sleeve rod and the first sleeve rod can be adaptively adjusted with the telescopic movement of the telescopic driving member 233. The arrangement of the guide rod 236 can improve the structural stability during the telescopic adjustment of the positioning mechanism 23.

[0073] In a specific embodiment of the present invention, as Figure 1 、 Figure 8 and Figure 9 shown, the reduction mechanism 26 includes a first-stage planetary gear carrier 261 connected to the motor shaft 271 of the driving mechanism, a first-stage planetary gear 262 rotatably arranged on the first-stage planetary gear carrier 261, a sun gear 263 arranged on the first-stage planetary gear carrier 261 and meshing with the first-stage planetary gear 262, and a second-stage planetary gear carrier 264 connected to the wheel shaft of the sun gear 263; the second-stage planetary gear carrier 264 is connected to the corresponding track 24.

[0074] The driving mechanism drives the first-stage planetary gear carrier 261 to rotate through the motor shaft 271. The rotation of the first-stage planetary gear carrier 261 can drive the first-stage planetary gear 262 to rotate. When the first-stage planetary gear 262 rotates, it can drive the sun gear 263 to rotate. Further, the sun gear 263 drives the second-stage planetary gear carrier 264 to rotate. The rotation angle of the second-stage planetary gear carrier 264 is half of the rotation angle of the motor shaft 271.

[0075] Further, the reduction mechanism 26 further includes a housing 266 and a second-stage planetary gear 265 rotatably and adjustably provided on the second-stage planetary gear carrier 264. The housing 266 is provided with a first-stage internal gear ring 267 corresponding to the first-stage planetary gear 262 and a second-stage internal gear ring 268 corresponding to the second-stage planetary gear 265. The first-stage planetary gear 262 meshes with the first-stage internal gear ring 267; the second-stage planetary gear 265 meshes with the second-stage internal gear ring 268. Through the meshing of the first-stage planetary gear 262 and the first-stage internal gear ring 267, the first-stage planetary gear carrier 261 is rotatably provided in the housing 266. Through the meshing of the second-stage planetary gear 265 and the second-stage internal gear ring 268, the second-stage planetary gear carrier 264 is rotatably provided in the housing 266.

[0076] In a specific embodiment of the present invention, as Figure 1 shown, the driving mechanism includes two dual-axis driving motors, and the two dual-axis driving motors are provided on both sides of the positioning mechanism 23; there are two reduction mechanisms 26, which are respectively located between the dual-axis driving motors and the corresponding tracks 24; one motor shaft of the dual-axis driving motor is drivingly connected to the positioning mechanism 23. Combining Figure 9 shown, the other motor shaft 271 is drivingly connected to the corresponding reduction mechanism 26. The rotational speeds of the two motor shafts of the dual-axis driving motor in the rotational directions are the same.

[0077] Preferably, the dual-axis driving motor is provided in the connection hole of the mounting ear plate 221 of the rotating bracket 22.

[0078] In a specific embodiment of the present invention, as Figure 1 、 Figure 3 and Figure 10 shown, guide rail frames 241 are provided on both sides of the rotating bracket 22, and the track 24 is installed on the guide rail frames 241. One end of the guide rail frame 241 is fixedly connected to the corresponding reduction mechanism 26, and the reduction mechanism 26 drives the guide rail frame 241 to rotate and adjust.

[0079] The top of the air gouging gun 25 is connected with a telescopic member 251 that can be telescopically adjusted. The telescopic adjustment of the air gouging gun 25 is realized through the telescopic adjustment of the telescopic member 251. The telescopic member 251 is preferably a telescopic electric cylinder or a telescopic air cylinder.

[0080] At the top of the telescopic member 251, a transverse rail 252 is provided. A guide rail seat 253 is connected to the transverse rail 252. The guide rail seat 253 is slidably arranged on the corresponding rail 24, and the guide rail seat 253 can be adjusted by moving on the corresponding rail 24.

[0081] Further, a moving driving mechanism can be arranged on the guide rail seat 253 to drive the guide rail seat 253 to move and adjust along the rail 24. The moving driving mechanism can be a roller rotatably arranged in the guide rail seat 253 and a motor for driving the roller to rotate. A part of the outer peripheral surface of the roller is attached to the side of the rail 24. The motor drives the roller to rotate, realizing the movement and adjustment of the guide rail seat 253 along the rail 24. Alternatively, the moving driving mechanism is a horizontal telescopic electric cylinder or a horizontal telescopic air cylinder, and the end is connected to the corresponding guide rail seat 253. By telescopic adjustment, the corresponding guide rail seat 253 can be pulled or pushed to move and adjust along the rail 24.

[0082] The gouging process of the external gouging device for the split arch beam joint section of the present invention will be described below.

[0083] When in use, the gouging device of the present invention is in the retracted state. As Figure 3 shown, the positioning mechanism 23 and the gouging gun 25 are both in the vertical state. Then, the gouging device of the present invention is placed on the top surface of the steel box girder 12. The traveling wheels 211 of the traveling chassis 21 rotate under the drive of the motor, realizing the traveling of the traveling chassis 21 on the top surface of the steel box girder 12. The device is moved close to the joint of the arch rib 11 and the steel box girder 12 by the traveling of the traveling chassis 21. After the traveling chassis 21 approaches one side of the arch rib 11, the rotation of the traveling wheels 211 is stopped. Then, the driving motor is started, and the corresponding driving gear 213 is driven to rotate through the motor shaft. The driving gear 213 drives the internal gear ring of the internal gear slewing bearing 212 to rotate. Furthermore, the internal gear ring drives the rotating bracket 22 to rotate and adjust. At the same time as or before the driving motor is started, the electromagnet is energized to move the protective cover 224 upward to expose the distance measuring sensor 223. The distance measuring sensor 223 is used to detect the distance. The distance measuring sensor 223 detects the distance from its side to the arch rib 11. This distance first gradually decreases and then increases. Through this process, the minimum distance between the distance measuring sensor 223 and the side of the arch rib 11 can be known, and the rotating bracket 22 is rotated and adjusted to the position where the distance measuring sensor detects the minimum distance. At this time, the positioning mechanism 23 and the gouging gun 25 are also at the minimum position from the side of the arch rib 11.

[0084] Next, start the dual-axis drive motor to simultaneously drive the positioning mechanism 23 and the air gouging gun 25 to rotate and adjust towards the direction of the arch rib 11. Due to the setting of the speed reduction mechanism 26, the rotation angle of the air gouging gun 25 is half of the rotation angle of the positioning mechanism 23. During the rotation adjustment of the positioning mechanism 23, the telescopic drive member 233 extends a certain distance so that the distance between the rotation center of the connecting rod 232 and the bottom edge of the magnet wheel 231 is equal to the distance between the rotation center of the connecting rod 232 and the top surface of the steel box girder 12. While rotating, the distance between the traveling chassis 21 and the arch rib 11 gradually increases. When the magnet wheel 231 contacts the side surface of the arch rib 11, the contact sensor 237 on the magnet wheel 231 forms a detection signal, which can control the dual-axis drive motor to stop running. At this time, the positioning mechanism 23 is perpendicular to the arch rib 11. After the magnet wheel 231 contacts the side surface of the arch rib 11, the wheel seat 235 can be driven to rotate and adjust by the rotation drive member 234 so that the traveling direction of the magnet wheel 231 is consistent with the traveling direction of the traveling chassis 21.

[0085] Then, the air gouging gun 25 extends downward under the drive of the telescopic member 251 so that the working head of the air gouging gun 25 contacts the joint of the arch rib 11 and the steel box girder 12. Start the air gouging gun 25 to perform air gouging on the joint of the arch rib 11 and the steel box girder 12 to form an air gouging groove at the joint of the arch rib 11 and the steel box girder 12. At the same time, the traveling chassis 21 travels along the set direction of the side surface of the arch rib 11 to complete the air gouging of the corresponding side surface. After completing the air gouging operation on one side surface, the air gouging operation on the next side surface can be carried out. The inclination angles of the side surfaces of the arch rib 11 are different. The air gouging device of the present invention can complete the air gouging operations on each side surface by repeating the above steps.

[0086] During the air gouging operation on the side surface of the arch rib 11, for the air gouging operation at the end of the side surface of the arch rib 11, the traveling chassis 21 can be stopped, and the air gouging gun 25 can be moved and adjusted along the track 24 to complete the air gouging operation on the corresponding end. After completing the air gouging operation at the end, the air gouging gun 25 is moved back to its original position.

[0087] The present invention has been described in detail above in conjunction with the embodiments with reference to the drawings. Those of ordinary skill in the art can make various variations to the present invention according to the above description. Therefore, some details in the embodiments should not constitute a limitation to the present invention, and the protection scope of the present invention will be defined by the scope of the appended claims.

Claims

1. A split type arch beam joint section external gouging device, used for gouging the external connection between the arch rib and the steel box beam, characterized in that: The gouging device comprises: A walking chassis capable of walking on the steel box girder; A rotatable and adjustable rotating bracket provided on the walking chassis; A rotatably adjustable positioning mechanism disposed on the rotating bracket, the positioning mechanism also being telescopically adjustable so as to abut against a corresponding portion of the arch rib after being rotated to a set angle; Tracks that are rotatably adjustable and arranged on the rotating bracket and located on both sides of the positioning mechanism; A gouging gun that is mounted on two tracks and can be telescopically adjusted; A driving mechanism disposed on the rotating bracket, the driving mechanism being connected to the positioning mechanism and capable of driving the positioning mechanism to perform rotation adjustment; A deceleration mechanism is arranged between the driving mechanism and the corresponding track. Through the arrangement of the deceleration mechanism, the driving mechanism can drive the track to rotate and adjust, and the rotation adjustment angle of the track is half of the rotation adjustment angle of the positioning mechanism.

2. The split-type arch-beam joint section external gouging device according to claim 1, characterized in that: The reduction mechanism comprises a primary planetary wheel carrier connected to the motor shaft of the driving mechanism, a primary planetary wheel rotatably and adjustable on the primary planetary wheel carrier, a sun wheel disposed on the primary planetary wheel carrier and meshing with the primary planetary wheel, a secondary planetary wheel carrier connected to the wheel axle of the sun wheel, and a secondary planetary wheel rotatably and adjustable on the secondary planetary wheel carrier; The secondary planetary wheel carrier is connected to the corresponding track.

3. The split-type arch-beam joint section external gouging device according to claim 2, characterized in that: The speed reduction mechanism further comprises a housing, on which a primary inner gear ring is provided corresponding to the primary planetary gear, and a secondary inner gear ring is provided corresponding to the secondary planetary gear; The first-stage planetary gear is meshed with the first-stage internal gear ring; The secondary planetary gear is meshed with the secondary internal gear ring.

4. The split-type arch-beam joint section external gouging device according to claim 1, characterized in that: The driving mechanism comprises two dual-axis driving motors, and the two dual-axis driving motors are arranged on both sides of the positioning mechanism; The deceleration mechanisms are provided with two, which are respectively located between the dual-axis drive motors and the corresponding tracks; One motor shaft of the dual-shaft drive motor is drivingly connected to the positioning mechanism, and the other motor shaft is drivingly connected to the corresponding reduction mechanism.

5. The split-type arch-beam joint section external gouging device according to claim 1, characterized in that: A rotatable magnet wheel is arranged at the bottom of the positioning mechanism.

6. The split-type arch-beam joint section external gouging device according to claim 5, characterized in that: The positioning mechanism includes a connecting rod rotatably arranged on the rotating bracket, a telescopic driving member connected to the connecting rod, a rotating driving member connected to the bottom of the telescopic driving member, and a wheel seat connected to the bottom of the rotating driving member; The driving mechanism is drivingly connected to the connecting rod to drive the connecting rod to perform rotation adjustment; The telescopic driving member can drive the rotary driving member to perform telescopic adjustment; The rotary drive member can drive the wheel seat to perform rotation adjustment; The magnet wheel is rotatably arranged on the wheel seat.

7. The split-type arch-beam joint section external gouging device according to claim 5, characterized in that: A contact sensor is arranged on the magnet wheel.

8. The split-type arch-beam joint section external gouging device according to claim 1, characterized in that: The rotating bracket is provided with a distance measuring sensor.

9. The split-type arch-beam joint section external gouging device according to claim 8, characterized in that: A movable and adjustable protective cover is provided on the rotating bracket corresponding to the distance measuring sensor.

10. The split-type arch-beam joint section external gouging device according to claim 1, characterized in that: The walking chassis is provided with a rotatable internal gear slewing bearing, a driving gear drivingly connected to the inner gear ring of the internal gear slewing bearing, and a driving motor drivingly connected to the driving gear; The internal gear slewing bearing is connected to the rotating bracket.

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