Welding device for cable-stayed bridge construction

Abstract

The invention discloses a welding device for cable-stayed bridge construction, and relates to the field of welding devices.The welding device comprises a welding machine case, a follow-up base is installed on the bottom side of the welding machine case, two expansion sliding plates are installed on the bottom side of the follow-up base in a sliding mode, and two advancing bases are installed on the bottom sides of the expansion sliding plates; a plurality of advancing wheels are rotationally mounted on the advancing seat; and the device further comprises a blocking and avoiding device and an active expansion device. It needs to be explained that when movement of the welding machine case is blocked, the advancing supporting arm is folded, the purpose of active obstacle avoidance is achieved, and flexible movement of the welding machine case is guaranteed; besides, if the advancing wheels on the same side are all blocked, the expansion sliding plates are automatically unfolded, the purpose of actively avoiding obstacles is achieved again, the problem that the welding machine case cannot advance and even turns over when encountering large obstacles is prevented, the safety of the welding machine case is guaranteed, and then the welding construction efficiency of the cable-stayed bridge can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of welding device, in particular to a welding device for cable-stayed bridge construction. BACKGROUND

[0002] As a cable system, the cable-stayed bridge has a larger span than the beam bridge, and is the main bridge type of large-span bridges. The cable-stayed bridge is suspended by many steel cables directly connected to the tower, and the tower type is A type, inverted Y type, H type, single column, and the material is steel and concrete, and the cable arrangement is single cable plane, parallel double cable plane, and inclined cable plane. The cable-stayed bridge structure is a high-order statically indeterminate structure in mechanics, and is the most complex structure in all bridge types. Due to the difference of cable forces and the difference of construction methods, the final bridge stress state will be significantly different, so in the stress analysis of the cable-stayed bridge structure, the primary task is to determine a reasonable bridge state to make the bridge structure stress uniform, and then determine a reasonable construction state.

[0003] Further, the steel structure is the main material of the main girder structure of the cable-stayed bridge. It should be noted that in the construction process, the steel structure needs to be connected through a large amount of welding work, and during welding, the position of the welding machine needs to be moved according to the change of the welding progress, but there are a large number of iron blocks, protrusions or equipment obstacles on the surface of the bridge during construction, so that the machine box of the welding machine is often hindered during movement, causing the machine box of the welding machine to be unable to move conveniently according to the needs, thereby causing the workers to stop work and move the machine box of the welding machine, which seriously hinders the construction progress; in addition, sometimes the welding machine box will be overturned during movement due to too large obstacles. SUMMARY

[0004] The purpose of the present application is to provide a welding device for cable-stayed bridge construction to solve the problems raised in the background art.

[0005] To achieve the above purpose, the present application provides the following technical scheme: A welding device for cable-stayed bridge construction, comprising a welding machine box, a follow-up base is installed on the bottom side of the welding machine box, and two extension slides are slidingly installed on the bottom side of the follow-up base, a plurality of forward wheels are rotatably installed on the bottom side of the extension slide. The blocking avoidance device is installed on the two extension slides, and the welding machine cabinet avoids obstacles through the blocking avoidance device; the blocking avoidance device comprises a plurality of advancing supports, the advancing supports are respectively installed on the advancing seats, an advancing rotating seat is rotatably installed on the advancing support, an advancing arm is slidably installed on the advancing rotating seat, and an advancing wheel is rotatably installed on the advancing arm. The active extension device is installed on the bottom side of the follow-up base, and the two extension slides are connected to the active extension device, which is used for slidingly opening the two extension slides; the active extension device comprises two extension supports, the extension supports are rotatably installed on the bottom side of the follow-up base, and the extension supports are movably installed on the two extension slides, respectively; the extension supports rotatably drive the extension slides to be slid open, and the bottom side of the follow-up base slidably installs two active pop-up frames, and the active pop-up frames are movably installed on the two extension supports, respectively. The follow-up base is provided with a buffer linkage device, which is used to drive the active extension device to be opened; the buffer linkage device comprises a plurality of rotating blocking strips, the rotating blocking strips are rotatably installed on the two extension slides, respectively, and the rotating blocking strips are used to block the two active pop-up frames.

[0006] Further, in the preferred embodiment of the present application, the blocking avoidance device further comprises a plurality of linkage pull rods, and the linkage pull rods are movably installed on the advancing arms, respectively. Two linkage pull shafts are rotatably installed on the linkage pull rods, and the linkage pull shafts are installed on the two advancing arms located on the same straight line, respectively.

[0007] Further, in the preferred embodiment of the present application, the advancing support is provided with an avoidance rotating groove, an avoidance rotating shaft is rotatably installed in the avoidance rotating groove, and the advancing rotating seat is installed on the avoidance rotating shaft. A rotary torsional spring is installed on the inner wall of the avoidance rotating groove and installed on the avoidance rotating shaft.

[0008] Further, in the preferred embodiment of the present application, the avoidance rotating shaft is provided with an avoidance rotating disc, a plurality of locking insertion grooves are equidistantly and spaced apart in the circumferential direction of the avoidance rotating disc, a plurality of locking insertion rods are movably installed on the bottom side of the advancing seat, and the locking insertion rods are inserted into the corresponding one of the locking insertion grooves. A plurality of the locking insertion rods are provided with synchronous driving plates, and a plurality of locking springs are installed on the synchronous driving plates and are installed on the inner wall of the bottom side of the forward seat.

[0009] Further, in the preferred embodiment of the application, the active expansion device further comprises two push-pull rotating rods, and two expansion rotating shafts are installed on the two expansion supports, wherein the two expansion rotating shafts are rotatably installed on the bottom side of the follow-up base, and the two push-pull rotating rods are respectively installed on the two expansion rotating shafts. Two expansion sliding plates are provided with driving sliding grooves, and the other two expansion rotating shafts are respectively slidably installed in the two driving sliding grooves.

[0010] Further, in the preferred embodiment of the application, a push-pull sliding groove is formed in the push-pull rotating rod, a push-pull shaft is rotatably installed on the active pop-up frame, and the push-pull shaft is movably installed in the push-pull sliding groove. A plurality of pop-up sliding grooves are formed in the follow-up base, a pop-up sliding rod is slidably installed in the pop-up sliding groove, the pop-up sliding rod is installed on the active pop-up frame, a pop-up spring is installed on the pop-up sliding rod, and the pop-up spring is installed on the inner wall of the pop-up sliding groove.

[0011] Further, in the preferred embodiment of the application, a plurality of expansion sliding grooves are formed in the bottom side of the follow-up base, and an expansion sliding strip is slidably installed in the expansion sliding groove and installed on the expansion sliding plate.

[0012] Further, in the preferred embodiment of the application, the buffer linkage device further comprises a plurality of linkage sliding frames, a plurality of push sliding grooves are formed in the plurality of forward supports, and the plurality of linkage sliding frames are respectively slidably installed in the plurality of push sliding grooves. The linkage sliding frame moves to push the rotating block to rotate, so as to unlock the active pop-up frame. A reset spring is installed on the inner wall of the push sliding groove and installed on the linkage sliding frame.

[0013] Further, in the preferred embodiment of the application, a wedge-shaped push plate is installed on the bottom side of the linkage sliding frame, a pulling extrusion frame is installed on the forward support arm, the pulling extrusion frame moves to push the wedge-shaped push plate to move, so as to drive the upward movement of the linkage sliding frame. A buffer sliding groove is formed in the forward support arm, a buffer sliding block is slidably installed in the buffer sliding groove, the buffer sliding block is installed on the forward rotating seat, a buffer spring is installed on the buffer sliding block, and the buffer spring is installed on the inner wall of the buffer sliding groove.

[0014] Further, in the preferred embodiment of the present application, a plurality of unlocking rotation grooves are formed on the extension skateboard, and an unlocking rotation shaft is rotatably installed in the unlocking rotation groove. An unlocking torsional spring is installed on the unlocking rotation shaft and installed on the inner wall of the unlocking rotation groove.

[0015] The welding device for cable-stayed bridge construction has the advantages that: In the present application, when the welding machine box is pulled, if the local advancing wheels are blocked, the advancing arms drive the advancing rotating seat to rotate, the rotating shaft drives the avoiding turntable to rotate, the avoiding turntable drives the avoiding turntable to move up through the locking slot, the locking rod moves up, the synchronous belt driving plate moves up, and the locking spring is stretched under stress; when the avoiding turntable continuously rotates, the locking rod is inserted into the next locking slot under the elastic force of the locking spring; when the advancing wheels are continuously blocked, the avoiding turntable continuously rotates until the obstacle is avoided, the locking rod is inserted into the corresponding locking slot, the avoiding turntable is locked, the blocked advancing wheels are folded, the active obstacle avoidance is realized, the welding machine box is flexibly moved, and the welding construction efficiency is ensured.

[0016] Further, in the present application, after the active pop-up frame is unlocked, the pop-up slide rods drive the active pop-up frame to move under the elastic force of the multiple pop-up springs, the active pop-up frame drives the push-pull shaft to move, the push-pull shaft drives the push-pull rotating rod to rotate, the push-pull rotating rod drives one of the extension shafts to rotate, the extension shaft drives the extension support to rotate, the extension support drives the extension skateboard to move through the other extension shaft, the extension skateboard is unfolded, the active obstacle avoidance is realized again, the welding machine box cannot advance or even overturn when encountering a large obstacle is prevented, and the safety of the welding machine box is ensured.

[0017] Further, in the present application, if the advancing wheels on the same side are all blocked, the multiple advancing wheels drive the multiple advancing arms to move, the multiple advancing arms drive the multiple pulling and extruding frames to move, the pulling and extruding frames drive the wedge-shaped push plate to move, the wedge-shaped push plate drives the linkage sliding frame to move, the linkage sliding frame moves vertically in the pushing sliding groove, the reset spring is stressed, the multiple linkage sliding frames drive the multiple rotating blocks to rotate, the active pop-up frame is unlocked, and the automatic unlocking of the active pop-up frame is realized. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A perspective structural schematic view of the welding device for cable-stayed bridge construction is provided for the embodiments of the present application. Figure 2 A structure schematic view of a welding machine cabinet of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of a follow-up base; Figure 3 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar; Figure 2 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of a follow-up base and an extension slide plate; Figure 4 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar; Figure 5 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of a follow-up base and an extension slide plate; Figure 6 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar; Figure 7 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar; Figure 8 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of a locking plug rod and a synchronous driving plate; Figure 9 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar; Figure 10 A structure schematic view of a welding device for cable-stayed bridge construction provided by the embodiment of the present application and a structure connection of an extension support and a rotating stop bar.

[0019] In the figure: 1-welding machine case; 2-following base; 3-extension slide plate; 4-advance seat; 5-advance wheel; 6-blockage avoiding device; 601-advance support; 602-advance rotating seat; 603-advance support arm; 604-avoiding rotating groove; 605-avoiding rotating shaft; 606-rotary torsional spring; 607-avoiding rotating disc; 608-locking inserting rod; 609-synchronous driving plate; 610-locking spring; 611-linkage pull rod; 612-linkage pull shaft; 613-locking inserting groove; 7-active extension device; 701-extension support; 702-extension rotating shaft; 703-driving slide groove; 704-pull-and-push rotating rod; 705-active pop-up frame; 706-pull-and-push slide groove; 707-pull-and-push shaft; 708-popping slide groove; 709-popping slide rod; 710-popping spring; 711-extension slide groove; 712-extension slide strip; 8-buffer linkage device; 801-rotating blocking strip; 802-pushing slide groove; 803-linkage slide frame; 804-wedge-shaped pushing plate; 805-resetting spring; 806-pulling extrusion frame; 807-buffer slide groove; 808-buffer slide block; 809-unlocking rotating shaft; 810-unlocking rotating groove; 811-unlocking torsional spring; 812-buffer spring. DETAILED DESCRIPTION

[0020] In order to make the objects, technical solutions, and advantages of the embodiments of the present application clearer, the following will be combined with the accompanying drawings for the embodiments of the present application to make a clear and complete description of the technical solutions in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. The components of the embodiments of the present application described and shown in the accompanying drawings can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments in the present application without creative labor are within the scope of protection of the present application.

[0022] It should be noted that: similar reference numerals and letters represent similar items in the following drawings, therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0023] Please refer to the accompanying drawings of the specification Figures 1-10 The welding device for cable-stayed bridge construction provided by the embodiments of the present application comprises a welding machine case 1, a following base 2 is installed at the bottom side of the welding machine case 1, two extension slide plates 3 are slidingly installed at the bottom side of the following base 2, two advance seats 4 are installed at the bottom side of the extension slide plates 3, and a plurality of advance wheels 5 are rotatably installed on the advance seats 4.

[0024] Further, please refer to the drawings attached in the specification Figures 2-8 The welding device for cable-stayed bridge construction provided by the embodiment of the present application further comprises a blocking and avoiding device 6, which is installed on the two extension slides 3, and the welding machine box 1 avoids obstacles through the blocking and avoiding device 6. Specifically, the blocking and avoiding device 6 comprises a plurality of advancing supports 601, which are respectively installed on the plurality of advancing seats 4. An advancing rotating seat 602 is rotatably installed on the advancing support 601, and an advancing support arm 603 is slidably installed on the advancing rotating seat 602. The advancing wheel 5 is rotatably installed on the advancing support arm 603. When the advancing wheel 5 is blocked by an obstacle, the advancing support arm 603 is driven to rotate for avoiding the obstacle. It should be noted that in the embodiment of the present application, when the welding machine box 1 is being pulled, if an obstacle is encountered and the local advancing wheel 5 is blocked, the advancing wheel 5 drives the advancing support arm 603 to move. The advancing support arm 603 slides on the buffer sliding block 808 through the buffer sliding groove 807, and the buffer spring 812 is stressed, so as to avoid the problem of direct impact on the welding machine box 1 and cause vibration damage. In addition, when the welding machine box 1 continues to move, the advancing support arm 603 drives the advancing rotating seat 602 to rotate, so as to realize the purpose of synchronous rotation and folding of the advancing support arm 603, and further make the welding machine box 1 pass through the obstacle smoothly, thereby realizing the purpose of automatic obstacle avoidance of the welding machine box 1.

[0025] Further specifically, the embodiment of the present application further comprises a main extension device 7, which is installed on the bottom side of the following base 2. The two extension slides 3 are connected to the main extension device 7, and the main extension device 7 is used for slidingly opening the two extension slides 3. The main extension device 7 comprises two extension supports 701, which are rotatably installed on the bottom side of the following base 2. The two extension supports 701 are respectively movably installed on the two extension slides 3. The extension support 701 rotatably drives the extension slide 3 to slide and open. The bottom side of the following base 2 slidably installs two main pop-up frames 705, and the two main pop-up frames 705 are respectively movably installed on the two extension supports 701. It should be noted that in the embodiment of the present application, after the main pop-up frame 705 is unlocked, the main pop-up frame 705 is popped out, thereby driving the extension slide 3 to move, realizing the purpose of unfolding the extension slide 3, and realizing the purpose of actively avoiding obstacles of the welding machine box 1, so as to prevent the welding machine box 1 from being unable to advance or even being overturned when encountering a large obstacle, thereby ensuring the safety of the welding machine box 1.

[0026] Further, the buffering linkage device 8 is arranged on the following base 2, and is used to drive the main driving expansion device 7 to open; the buffering linkage device 8 comprises a plurality of rotating blocking strips 801, the rotating blocking strips 801 are rotatably arranged on the two expansion sliding plates 3 respectively, and the rotating blocking strips 801 are used to block the two main driving pop-up frames 705 respectively; it is to be noted that, in the embodiment of the present application, when the plurality of advancing wheels 5 are all blocked, the plurality of linkage sliding frames 803 are moved to drive the rotating blocking strips 801 to rotate, so that the main driving pop-up frames 705 are unlocked, thereby achieving the purpose of automatically unlocking the main driving pop-up frames 705.

[0027] Please continue to refer to the drawings in the specification Figures 2-8 Further, the welding device for cable-stayed bridge construction provided by the embodiment of the present application further comprises a plurality of linkage pull rods 611, and the linkage pull rods 611 are movably arranged on the plurality of advancing branch arms 603 respectively; in addition, two linkage pull shafts 612 are rotatably arranged on the linkage pull rods 611, and the two linkage pull shafts 612 are arranged on the two advancing branch arms 603 on the same straight line respectively; it is to be noted that, in the embodiment of the present application, when one advancing branch arm 603 rotates, the linkage pull rod 611 is driven to move by the one linkage pull shaft 612, and the linkage pull rod 611 drives the other advancing branch arm 603 to rotate by the other linkage pull shaft 612, thereby achieving the purpose of synchronously rotating and folding the two advancing branch arms 603.

[0028] Further, the advancing support 601 is provided with an avoiding rotating groove 604, the avoiding rotating shaft 605 is rotatably arranged in the avoiding rotating groove 604, and the advancing rotating seat 602 is arranged on the avoiding rotating shaft 605; in addition, the inner wall of the avoiding rotating groove 604 is provided with the rotary torsional spring 606, and the rotary torsional spring 606 is arranged on the avoiding rotating shaft 605; it is to be noted that, in the embodiment of the present application, the advancing branch arm 603 drives the advancing rotating seat 602 to rotate, the advancing rotating seat 602 drives the avoiding rotating shaft 605 to rotate in the avoiding rotating groove 604, and the rotary torsional spring 606 is stressed, so that the advancing rotating seat 602 is reset by the avoiding rotating shaft 605 under the resilience of the rotary torsional spring 606.

[0029] Please continue to refer to the drawings in the specification Figures 2-8 Further, the avoiding rotating shaft 605 is provided with the avoiding rotating disc 607, a plurality of locking insertion slots 613 are equidistantly and spaced apart in the circumferential direction of the avoiding rotating disc 607, and the bottom side of the advancing seat 4 is movably provided with a plurality of locking insertion rods 608, the locking insertion rods 608 are inserted into corresponding locking insertion slots 613; In addition, the plurality of locking insertion rods 608 are provided with synchronous driving plates 609, the synchronous driving plates 609 are provided with a plurality of locking springs 610, and the plurality of locking springs 610 are mounted on the bottom side inner wall of the forward seat 4. It should be noted that, in the embodiment of the application, the avoidance rotating disc 607 is rotated, so that the avoidance rotating disc 607 is extruded on the locking insertion rod 608 to move upward, the synchronous driving plate 609 is driven to move upward along with the upward movement of the locking insertion rod 608, and the locking spring 610 is forced to stretch, and when the avoidance rotating disc 607 is continuously rotated, the locking insertion rod 608 is inserted into the next locking insertion slot 613 under the elastic force of the locking spring 610; when the forward wheel 5 is continuously blocked, the avoidance rotating disc 607 is continuously rotated until the obstacle is avoided, so that the locking insertion rod 608 is inserted into the corresponding locking insertion slot 613, the locking of the avoidance rotating disc 607 is realized, and then the blocked forward wheel 5 is folded up, so that the automatic obstacle avoidance of the welding machine case 1 is realized.

[0030] Further, please refer to the drawings in the description Figure 2 、 Figures 4-5 and Figure 9 The embodiment of the application provides a welding device for cable-stayed bridge construction, and the active expansion device 7 further comprises two push-pull rotating rods 704, two expansion supports 701 are provided with two expansion shafts 702, the two expansion shafts 702 are rotationally installed on the bottom side of the follow-up base 2, and the two push-pull rotating rods 704 are respectively installed on the two expansion shafts 702. In addition, the two expansion sliding plates 3 are provided with driving sliding grooves 703, and the other two expansion shafts 702 are respectively slidingly installed in the two driving sliding grooves 703. It should be noted that, in the embodiment of the application, when the push-pull rotating rod 704 is rotated, one expansion shaft 702 is driven to rotate, the expansion shaft 702 rotates on the bottom side of the follow-up base 2, the expansion shaft 702 drives the expansion support 701 to rotate, the expansion support 701 drives the expansion sliding plate 3 to move through the other expansion shaft 702, and meanwhile, the expansion shaft 702 slides in the driving sliding groove 703, so that the expansion sliding plate 3 is unfolded.

[0031] Further specifically, in the embodiment of the application, the push-pull rotating rod 704 is provided with a push-pull sliding groove 706, the active pop-up frame 705 is rotationally installed with a push-pull shaft 707, and the push-pull shaft 707 is movably installed in the push-pull sliding groove 706. Furthermore, the follower base 2 has multiple pop-out grooves 708, and pop-out slide rods 709 are slidably installed in the pop-out grooves 708. The pop-out slide rods 709 are mounted on the active pop-out frame 705, and pop-out springs 710 are installed on the pop-out slide rods 709. The pop-out springs 710 are installed on the inner wall of the pop-out grooves 708. It should be noted that, in this embodiment of the invention, after the active pop-out frame 705 is unlocked, the rebound force of the multiple pop-out springs 710 causes the multiple pop-out slide rods 709 to drive the active pop-out frame 705 to move. The movement of the active pop-out frame 705 drives the push-pull shaft 707 to move, causing the push-pull shaft 707 to drive the push-pull rotating rod 704 to rotate. At the same time, the push-pull shaft 707 slides in the push-pull groove 706, thereby achieving the purpose of driving the expansion bracket 701 to rotate.

[0032] More specifically, in this embodiment of the invention, the bottom side of the follower base 2 is provided with multiple expansion grooves 711, and expansion slide bars 712 are slidably installed in the expansion grooves 711. The expansion slide bars 712 are installed on the expansion slide plate 3. It should be noted that in this embodiment of the invention, the expansion slide plate 3 moves by sliding the multiple expansion slide bars 712 in the multiple expansion grooves 711, thereby achieving the purpose of horizontally sliding and unfolding the expansion slide plate 3.

[0033] Please refer to the instruction manual attached. Figures 2-4 , Figure 6 and Figure 10 Furthermore, the welding device for cable-stayed bridge construction provided in this embodiment of the invention includes a buffer linkage device 8 that further includes multiple linkage slides 803. Each of the multiple forward supports 601 is provided with a push groove 802. The multiple linkage slides 803 are slidably installed in the multiple push grooves 802. The movement of the linkage slides 803 pushes the rotating stop bar 801 to rotate, thereby unlocking the active ejector frame 705. Furthermore, a return spring 805 is installed on the inner wall of the push groove 802, and the return spring 805 is mounted on the linkage slide 803. It should be noted that, in this embodiment of the invention, when the linkage slide 803 moves, it moves vertically within the push groove 802, causing the return spring 805 to be stressed. Therefore, the rebound force of the return spring 805 can help the linkage slide 803 return to its original position.

[0034] More specifically, in this embodiment of the invention, a wedge-shaped push plate 804 is installed on the bottom side of the linkage slide 803, and a pulling and pressing frame 806 is installed on the forward support arm 603. The pulling and pressing frame 806 moves to push the wedge-shaped push plate 804 to move, thereby driving the linkage slide 803 to move upward. Further, the buffer sliding groove 807 is arranged on the forward supporting arm 603, the buffer sliding block 808 is slidably arranged in the buffer sliding groove 807, the buffer sliding block 808 is arranged on the forward rotating seat 602, the buffer spring 812 is arranged on the buffer sliding block 808, and the buffer spring 812 is arranged on the inner wall of the buffer sliding groove 807. It should be noted that in the embodiment of the present application, when the forward wheel 5 is blocked, the forward wheel 5 drives the forward supporting arm 603 to move, the forward supporting arm 603 slides on the buffer sliding block 808 through the buffer sliding groove 807, and the buffer spring 812 is stressed, thereby avoiding the problem of direct impact on the welding machine box 1 to cause vibration damage; at the same time, the movement of the forward supporting arm 603 drives the movement of the plurality of pulling and extruding frames 806, the movement of the pulling and extruding frame 806 extrudes the movement of the wedge-shaped push plate 804, the wedge-shaped push plate 804 drives the movement of the plurality of linkage carriages 803, the plurality of linkage carriages 803 move to drive the rotation of the plurality of rotating blocking strips 801, and then the driving ejection frame 705 is unlocked, thereby achieving the purpose of automatically unlocking the driving ejection frame 705.

[0035] Further, the buffer sliding groove 807 is arranged on the forward supporting arm 603, the buffer sliding block 808 is slidably arranged in the buffer sliding groove 807, the buffer sliding block 808 is arranged on the forward rotating seat 602, the buffer spring 812 is arranged on the buffer sliding block 808, and the buffer spring 812 is arranged on the inner wall of the buffer sliding groove 807. It should be noted that in the embodiment of the present application, when the forward wheel 5 is blocked, the forward wheel 5 drives the forward supporting arm 603 to move, the forward supporting arm 603 slides on the buffer sliding block 808 through the buffer sliding groove 807, and the buffer spring 812 is stressed, thereby avoiding the problem of direct impact on the welding machine box 1 to cause vibration damage; at the same time, the movement of the forward supporting arm 603 drives the movement of the plurality of pulling and extruding frames 806, the movement of the pulling and extruding frame 806 extrudes the movement of the wedge-shaped push plate 804, the wedge-shaped push plate 804 drives the movement of the plurality of linkage carriages 803, the plurality of linkage carriages 803 move to drive the rotation of the plurality of rotating blocking strips 801, and then the driving ejection frame 705 is unlocked, thereby achieving the purpose of automatically unlocking the driving ejection frame 705.

[0036] In summary, the working principle of the welding device for the construction of the cable-stayed bridge provided by the embodiment of the present application is as follows: During the welding operation at the construction site of the cable-stayed bridge, when the welding machine box 1 is pulled, the welding machine box 1 drives the movement of the driven base 2, the movement of the driven base 2 drives the movement of the two expansion sliding plates 3, the movement of the expansion sliding plate 3 drives the movement of the forward seat 4, and the forward seat 4 moves forward through the plurality of forward wheels 5; during the process, if the local forward wheel 5 is blocked, the forward wheel 5 drives the movement of the forward supporting arm 603, the forward supporting arm 603 slides on the buffer sliding block 808 through the buffer sliding groove 807, and the buffer spring 812 is stressed, thereby avoiding the problem of direct impact on the welding machine box 1 to cause vibration damage; Further, when the welding machine case 1 continuously moves, the advancing arm 603 drives the advancing rotating seat 602 to rotate, the advancing rotating seat 602 drives the avoiding rotating shaft 605 to rotate in the avoiding rotating groove 604, and the torsional spring 606 is stressed, and meanwhile, the avoiding rotating shaft 605 drives the avoiding rotating disc 607 to rotate, the avoiding rotating disc 607 is moved up by the lock insertion rod 608 through the lock insertion slot 613, the lock insertion rod 608 drives the synchronous driving plate 609 to move up, and the lock spring 610 is stressed and stretched. It should be noted that when the avoiding rotating disc 607 continuously rotates, the lock insertion rod 608 is inserted into the next lock insertion slot 613 under the resilience of the lock spring 610, and when the advancing wheel 5 is continuously blocked, the avoiding rotating disc 607 continuously rotates until avoiding the obstacle, so that the lock insertion rod 608 is inserted into the corresponding lock insertion slot 613, thereby realizing the locking of the avoiding rotating disc 607, and further making the blocked advancing wheel 5 fold up; In addition, it should be further noted that when one advancing arm 603 rotates, the linkage pull rod 611 is driven to move by one linkage pull shaft 612, the other advancing arm 603 is driven to rotate by the linkage pull rod 611 through the other linkage pull shaft 612, the synchronous rotation and folding of the two advancing arms 603 is realized, and further the welding machine case 1 can smoothly pass through the obstacle; At the same time, when other advancing wheels 5 are blocked, the same action is repeated, and in the process, the synchronous driving plate 609 moves up, and the lock insertion rod 608 corresponding to the two folded advancing wheels moves up, and under the torsional force of the torsional spring 606, the advancing arm 603 at the position drives the advancing wheel 5 to reset, continues to support the expansion slide plate 3, and realizes the continuous support of the welding machine case 1; Further, if all the advancing wheels 5 on the same side are blocked, the plurality of advancing wheels 5 simultaneously drive the plurality of advancing arms 603 to move, and further drive the plurality of pull extrusion frames 806 to move, the pull extrusion frame 806 moves to extrude the wedge-shaped push plate 804 to move, the wedge-shaped push plate 804 drives the linkage sliding frame 803 to move, the linkage sliding frame 803 moves vertically in the pushing sliding groove 802, and the reset spring 805 is stressed, and meanwhile, the plurality of linkage sliding frames 803 move to drive the plurality of rotating blocking strips 801 to rotate, and further the active pop-up frame 705 is unlocked, realizing the automatic unlocking of the active pop-up frame 705; Further, after the active pop-up frame 705 is unlocked, the plurality of pop-up slide rods 709 drive the active pop-up frame 705 to move under the resilience of the plurality of pop-up springs 710, the movement of the active pop-up frame 705 drives the push-pull shaft 707 to move, the push-pull shaft 707 drives the push-pull rotating rod 704 to rotate while sliding in the push-pull sliding groove 706, the rotation of the push-pull rotating rod 704 drives the expansion rotating shaft 702 to rotate, the expansion rotating shaft 702 rotates on the bottom side of the follow-up base 2, the expansion rotating shaft 702 drives the expansion support 701 to rotate, the expansion support 701 drives the expansion slide plate 3 to move through another expansion rotating shaft 702, and the expansion rotating shaft 702 slides in the sliding groove 703, the expansion slide plate 3 moves through the plurality of expansion slide strips 712 to slide in the plurality of expansion sliding grooves 711, thereby achieving the purpose of unfolding the expansion slide plate 3, and achieving the purpose of actively avoiding obstacles again, so as to prevent the welding machine box 1 from being unable to move forward or even being overturned when encountering a larger obstacle, and ensure the safety of the welding machine box 1.

[0037] The above merely describes the preferred embodiments of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can make equivalent replacements or changes to the technical solutions and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered within the protection scope of the present application.

Claims

1. A welding device for the construction of cable-stayed bridges, characterized in that, It includes a welding machine chassis, a follower base is installed on the bottom side of the welding machine chassis, and two extended slide plates are slidably installed on the bottom side of the follower base. Two forward seats are installed on the bottom side of the extended slide plates, and multiple forward wheels are rotatably installed on the forward seats. It also includes a blocking and avoidance device, which is installed on two extended sliding plates. The welding machine chassis avoids obstacles through the blocking and avoidance device. The blocking and avoidance device includes multiple forward supports, which are respectively installed on multiple forward seats. A forward rotating seat is rotatably installed on the forward support, and a forward support arm is slidably installed on the forward rotating seat. A forward wheel is rotatably installed on the forward support arm. When the forward wheel is blocked by an obstacle, it drives the forward support arm to rotate to avoid the obstacle. It also includes an active expansion device, which is mounted on the bottom side of the follower base. Both expansion slides are connected to the active expansion device, which is used to slide open the two expansion slides. The active expansion device includes two expansion brackets, which are rotatably mounted on the bottom side of the follower base. The two expansion brackets are movably mounted on the two expansion slides respectively. The expansion brackets rotate to drive the expansion slides to slide open. Two active ejector frames are slidably mounted on the bottom side of the follower base, and the two active ejector frames are movably mounted on the two expansion brackets respectively. A buffer linkage device is installed on the follow-up base, which is used to drive the active expansion device to open; the buffer linkage device includes multiple rotating baffles, which are rotatably installed on the two expansion slides respectively, and are used to block the two active ejection frames respectively.

2. The welding device for cable-stayed bridge construction according to claim 1, characterized in that, The blocking and avoidance device also includes multiple linkage rods, which are movably mounted on multiple forward support arms respectively; Two linkage shafts are rotatably mounted on the linkage rod, and the two linkage shafts are respectively mounted on the two forward support arms located on the same straight line.

3. The welding device for cable-stayed bridge construction according to claim 2, characterized in that, The forward support is provided with a clearance groove, and a clearance shaft is rotatably installed in the clearance groove. The forward rotating seat is installed on the clearance shaft. A rotary torsion spring is installed on the inner wall of the avoidance groove, and the rotary torsion spring is mounted on the avoidance shaft.

4. The welding device for cable-stayed bridge construction according to claim 3, characterized in that, The avoidance shaft is equipped with an avoidance turntable, and the avoidance turntable has multiple locking slots at equal intervals along the circumferential direction. Multiple locking rods are movably installed on the bottom side of the forward seat, and the locking rods are inserted into one of the locking slots at the corresponding positions. A synchronous drive plate is installed on each of the locking rods, and a plurality of locking springs are installed on the synchronous drive plate. All of the locking springs are installed on the bottom inner wall of the forward seat.

5. The welding device for cable-stayed bridge construction according to claim 1, characterized in that, The active extension device also includes two push-pull rotating rods, and two extension rotating shafts are installed on each of the two extension brackets. The two extension rotating shafts are rotatably mounted on the bottom side of the follower base, and the two push-pull rotating rods are respectively installed on the two extension rotating shafts. Both of the extended sliding plates are provided with drive grooves, and the other two extended rotating shafts are respectively slidably installed in the two drive grooves.

6. A welding device for cable-stayed bridge construction according to claim 5, characterized in that, The push-pull rotating rod is provided with a push-pull sliding groove, and the active ejector frame is rotatably mounted with a push-pull shaft, which is movably installed in the push-pull sliding groove; The follower base has multiple pop-out grooves, and a pop-out slide rod is slidably installed in the pop-out groove. The pop-out slide rod is installed on the active pop-out frame, and a pop-out spring is installed on the pop-out slide rod. The pop-out spring is installed on the inner wall of the pop-out groove.

7. A welding device for cable-stayed bridge construction according to claim 6, characterized in that, The bottom side of the follower base is provided with multiple expansion grooves, and expansion slide bars are slidably installed in the expansion grooves. The expansion slide bars are installed on the expansion slide plate.

8. The welding device for cable-stayed bridge construction according to claim 1, characterized in that, The buffer linkage device also includes multiple linkage slides. Each of the multiple forward supports is provided with a push slide groove. The multiple linkage slides are slidably installed in the multiple push slide grooves. The movement of the linkage slides pushes the rotating stop bar to rotate, thereby unlocking the active ejection frame. A return spring is installed on the inner wall of the push slide, and the return spring is mounted on the linkage slide.

9. A welding device for cable-stayed bridge construction according to claim 8, characterized in that, A wedge-shaped push plate is installed on the bottom side of the linkage slide, and a pulling and pressing frame is installed on the forward support arm. The movement of the pulling and pressing frame pushes the wedge-shaped push plate to move, thereby driving the linkage slide to move upward. The forward support arm is provided with a buffer groove, and a buffer slider is slidably installed in the buffer groove. The buffer slider is installed on the forward rotating seat, and a buffer spring is installed on the buffer slider. The buffer spring is installed on the inner wall of the buffer groove.

10. A welding device for cable-stayed bridge construction according to claim 9, characterized in that, The extended sliding plate is provided with multiple unlocking slots, and an unlocking shaft is rotatably installed in each unlocking slot. The rotating stop bar is installed on the unlocking shaft. An unlocking torsion spring is installed on the unlocking shaft, and the unlocking torsion spring is installed on the inner wall of the unlocking slot.

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