Moving device for replacing railroad bridge foot plank

Abstract

The invention discloses a moving device for replacing a railroad bridge foot plank, which is erected between a steel rail and a guardrail of a railroad bridge and comprises a rail side walking assembly on the steel rail and a guardrail side walking assembly on the guardrail, and a moving cross beam is erected above the rail side walking assembly and the guardrail side walking assembly. A rail side stand column is fixedly arranged on the rail side walking assembly, a cross beam connecting base arranged on the rail side stand column in a sleeving mode is fixedly arranged on the moving cross beam, and a height fixing mechanism is arranged between the cross beam connecting base and the rail side stand column. A rail side trolley and a lifting trolley are installed on a rail on the moving cross beam, the lifting trolley is located between the rail side trolley and the cross beam connecting base, the rail side walking assembly is installed on the rail side trolley, and a lifting device is installed on the lifting trolley. The device is convenient to implement on site, labor-saving, convenient and good in safety.

Description

Technical Field

[0001] The invention relates to the technical field of transporting equipment, and in particular to a transporting device for replacing walking boards of railway bridges. Background Art

[0002] Railway bridges are structures where railways cross rivers, lakes, straits, valleys or other obstacles. Rails are laid in the middle of railway bridges, and sidewalks are laid on both sides with walking boards. Guardrails are set on the outside of the sidewalks for protection. The walking boards are prefabricated boards. Under long-term erosion by wind and rain, the walking boards will crack, corrode and weather, and eventually fail to perform the panel function, posing a safety hazard. Therefore, it is necessary to regularly inspect and replace the failed walking boards.

[0003] Since most railway bridges are located in the wild, when replacing walking boards, vehicles are usually used to transport new walking boards to the vicinity of the railway bridge, and then transported to a designated location for replacement and use. Currently, this transportation work is mainly done by manual lifting, which is time-consuming, labor-intensive, and unsafe. Although at present, the above-mentioned transportation work is carried out by using a transport vehicle that travels on rails, the transport vehicle is heavy and it is difficult to manually lay it on the rails, requiring the cooperation of lifting machinery. Due to the complexity of the terrain and road conditions in the area where the railway bridge is located, it is often difficult for lifting machinery to enter the site to complete the above-mentioned transport vehicle layout work. For this reason, it is necessary to provide a convenient and labor-saving means of transportation that is easy to implement on site to improve the above-mentioned situation. Summary of the invention

[0004] The technical problem to be solved by the present invention is to provide a moving device for replacing walking boards of railway bridges which is convenient for on-site implementation, labor-saving, convenient and safe.

[0005] In order to solve the above technical problems, the technical solution of the present invention is: a transport device for replacing the walking board of a railway bridge is erected between the steel rails and the guardrails of the railway bridge, including a rail-side walking assembly on the steel rails and a guardrail-side walking assembly on the guardrails, a transport beam is erected above the rail-side walking assembly and the guardrail-side walking assembly, a rail-side column is fixedly provided on the rail-side walking assembly, a beam connecting seat mounted on the rail-side column is fixedly provided on the transport beam, and a height fixing mechanism is provided between the beam connecting seat and the rail-side column; a guardrail-side trolley and a lifting trolley are installed on the track of the transport beam, the lifting trolley is located between the guardrail-side trolley and the beam connecting seat, the guardrail-side walking assembly is installed on the guardrail-side trolley, and the lifting device is installed on the lifting trolley.

[0006] As a preferred technical solution, a floating connection mechanism is provided between the fence side trolley and the moving crossbeam.

[0007] As a preferred technical solution, the floating connection mechanism includes floating holding springs respectively arranged at the two ends of the fence side trolley close to and away from the beam connecting seat, and the other end of the floating holding spring is connected to the moving beam.

[0008] As a preferred technical solution, a beam insertion tube is provided on the beam connecting seat, the moving beam is inserted into the beam insertion tube, and a insertion position fixer is provided between the moving beam and the beam insertion tube.

[0009] As a preferred technical solution, the guardrail side walking assembly includes a guardrail side direction seat that is laterally swingably installed at the lower part of the guardrail side trolley, and the guardrail side direction seat is equipped with two guardrail side walking wheels arranged along the direction of the guardrail.

[0010] As a preferred technical solution, a positive retaining spring is provided between the fence side direction seat and the fence side trolley.

[0011] As a preferred technical solution, the rail side column includes a column fixing section fixedly connected to the rail side walking assembly, and a column movable section is sleeved on the column fixing section; the height fixing mechanism includes a plurality of height selection through holes arranged in sequence along the height direction on the column movable section, and a height fixing through hole is provided on the column fixing section, and a height fixing pin is passed through the height fixing through hole and one of the height selection through holes; a height fine-adjustment sleeve sleeved on the column movable section is fixedly provided on the crossbeam connecting seat, and a height fine-adjustment thread is provided on the column movable section at the lower end of the height fine-adjustment sleeve, and a height fine-adjustment nut that limits the height of the lower end of the height fine-adjustment sleeve is installed on the height fine-adjustment thread.

[0012] As a preferred technical solution, the rail side walking assembly includes a rail side walking seat, on which are mounted two rail side walking wheels arranged along the direction of the rail, and the rail side column is fixedly arranged on the rail side walking seat and located between the two rail side walking wheels.

[0013] As a preferred technical solution, a loading platform is fixedly provided on the rail side walking seat at one side close to the guardrail.

[0014] As a preferred technical solution, the lifting device includes a small hand-cranked crane.

[0015] Due to the adoption of the above technical scheme, the transport device for replacing the walking board of the railway bridge is erected between the rails and the guardrails of the railway bridge, including a rail-side walking assembly on the rail and a guardrail-side walking assembly on the guardrail, a transport beam is erected above the rail-side walking assembly and the guardrail-side walking assembly, a rail-side column is fixedly provided on the rail-side walking assembly, a beam connecting seat sleeved on the rail-side column is fixedly provided on the transport beam, and a height fixing mechanism is provided between the beam connecting seat and the rail-side column; a guardrail-side trolley and a lifting trolley are installed on the track of the transport beam, the lifting trolley is located between the guardrail-side trolley and the beam connecting seat, the guardrail-side walking assembly is installed on the guardrail-side trolley, and a lifting device is installed on the lifting trolley. After the present invention is erected, the guardrail-side walking assembly and the rail-side walking assembly are relied on to realize walking along the railway bridge, and the walking board is moved to the position where it needs to be replaced, which is labor-saving, convenient and safe. The device is composed of the rail side walking assembly, the moving crossbeam, the guardrail side walking assembly, the guardrail side trolley and the lifting trolley. After disassembly, the individual components are small in size and weight, convenient for transportation, and convenient for manual transportation to the railway bridge, without the need for lifting machinery to enter the site. During assembly, the steel rails and guardrails on the existing railway bridge are used to complete the erection, which is convenient for on-site implementation. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] The following drawings are intended only to illustrate and explain the present invention, and are not intended to limit the scope of the present invention.

[0017] Figure 1 is a schematic diagram of the overall structure of an embodiment of the present invention;

[0018] Figure 2 yes Figure 1 An enlarged schematic diagram of the structure of the trackside walking assembly;

[0019] Figure 3 yes Figure 2 A-direction structural schematic diagram;

[0020] Figure 4 yes Figure 1 An enlarged schematic diagram of the structure of the walking assembly on the side of the fence;

[0021] Figure 5 yes Figure 4 Schematic diagram of BB structure;

[0022] Figure 6 This is a schematic diagram of the structure from above at the refuge platform of the railway bridge;

[0023] Figure 7 yes Figure 6 A schematic diagram of the C-direction structure;

[0024] Figure 8 yes Figure 7Enlarged schematic diagram of the DD structure.

[0025] In the figure: 1-railway bridge; 11-rail; 12-guardrail; 13-evacuation platform; 2-track side walking assembly; 21-track side walking seat; 22-track side walking wheel; 23-loading platform; 3-track side column; 31-column fixed section; 32-column movable section; 4-transport beam; 41-C-shaped steel; 42-beam reinforcement rib; 43-beam connecting seat; 44-beam insertion tube; 45-insertion position fixer; 46-height fixing mechanism; 461-height selection through hole; 462-height fixing through hole; 463-height fixing pin; 46 4-height fine-adjustment sleeve; 465-height fine-adjustment nut; 466-height fixing nut; 5-rail side walking assembly; 51-rail side direction seat; 52-rail side walking wheel; 6-rail side trolley; 61-inner connecting seat; 62-trolley walking wheel; 63-stud; 64-outer connecting seat; 65-floating connection mechanism; 651-floating holding spring; 652-tension spring connecting pin; 653-tension spring connecting hook; 7-lifting trolley; 71-lifting device; 8-temporary lap rod; 81-lap rod body; 82-buckle protrusion; 9-walking board. DETAILED DESCRIPTION

[0026] The present invention is further described below in conjunction with the accompanying drawings and examples. In the following detailed description, certain exemplary embodiments of the present invention are described only by way of illustration. Needless to say, those of ordinary skill in the art will recognize that the described embodiments may be modified in various ways without departing from the spirit and scope of the present invention. Therefore, the drawings and description are illustrative in nature and are not intended to limit the scope of protection of the claims.

[0027] like Figures 1 to 5 As shown together, a moving device for replacing walking boards of railway bridges is erected between the rails 11 and guardrails 12 of the railway bridge 1, and includes a rail-side walking component 2 on the rails 11 and a guardrail-side walking component 5 on the guardrails 12. This embodiment utilizes the existing steel beams and guardrails 12 on the railway bridge 1 for walking, eliminating the need for laying walking tracks, which helps to simplify the structure.

[0028] A moving beam 4 is mounted above the track side walking assembly 2 and the guardrail side walking assembly 5, a track side column 3 is fixedly provided on the track side walking assembly 2, a beam connecting seat 43 mounted on the track side column 3 is fixedly provided on the moving beam 4, and a height fixing mechanism 46 is provided between the beam connecting seat 43 and the track side column 3. One end of the moving beam 4 is connected to the track side walking assembly 2 through the beam connecting seat 43 and the track side column 3. The railway bridge 1 is technically designed, and the height difference between the guardrail 12 and the rail 11 is implemented according to the standard, and only a small part has a different height difference due to the difference in standards; the height fixing mechanism 46 is provided in this embodiment to adjust the height of the end of the moving beam 4 close to the rail 11, so as to adapt to the different height differences between the rail 11 and the guardrail 12 for use.

[0029] The rail side column 3 of this embodiment includes a column fixing section 31 fixedly connected to the rail side walking assembly 2, and a column movable section 32 is sleeved on the column fixing section 31. The height fixing mechanism 46 includes a plurality of height selection through holes 461 arranged in sequence along the height direction on the column movable section 32, and a height fixing through hole 462 is provided on the column fixing section 31, and a height fixing pin 463 is inserted between the height fixing through hole 462 and one of the height selection through holes 461; the height adjustment purpose is achieved by inserting the height fixing through hole 462 and different height selection through holes 461.

[0030] The crossbeam connection seat 43 is fixedly provided with a height fine-adjustment sleeve 464 sleeved on the column movable section 32, and the column movable section 32 is provided with a height fine-adjustment thread at the lower end of the height fine-adjustment sleeve 464, and a height fine-adjustment nut 465 for limiting the lower end height of the height fine-adjustment sleeve 464 is installed on the height fine-adjustment thread. By rotating the height fine-adjustment nut 465, its height relative to the column fixed section 31 can be changed, and the height of the height fine-adjustment sleeve 464 is adjusted accordingly. Therefore, in this embodiment, the height fixing pin 463 is installed between the height fixing through hole 462 and the different height selection through holes 461, and the height of the moving crossbeam 4 close to the rail 11 is roughly adjusted. After the rough adjustment, the height fine-adjustment nut 465 is rotated to perform fine adjustment, and finally the moving crossbeam 4 is in a horizontal state.

[0031] Preferably, the column movable section 32 is further provided with a height fixing thread at the upper end of the height fine-adjustment sleeve 464, and a height fixing nut 466 for fastening the height fine-adjustment sleeve 464 is installed on the height fixing thread. After the coarse adjustment and fine adjustment are completed, the height fixing nut 466 is tightened, and the height fixing nut 466 and the height fine-adjustment nut 465 form a fastening of the height fine-adjustment sleeve 464, which can improve the connection stability and promote the stable and reliable process of moving and using.

[0032] The rail side walking assembly 2 of this embodiment includes a rail side walking seat 21, on which two rail side walking wheels 22 arranged along the direction of the rail 11 are installed, and the rail side column 3 is fixedly arranged on the rail side walking seat 21 and located between the two rail side walking wheels 22, so that the center of gravity of this embodiment is located between the two rail side walking wheels 22, which promotes the stability of the moving process. Preferably, the rail side walking wheels 22 are insulating wheels to avoid affecting the weak current communication in the rail 11.

[0033] The rails on the moving beam 4 are equipped with a side trolley 6 and a lifting trolley 7, and the trolleys can travel in the length direction of the moving beam 4. The lifting trolley 7 is located between the side trolley 6 and the beam connecting seat 43, the side trolley 6 is equipped with the side walking assembly 5, and the lifting trolley 7 is equipped with a lifting device 71.

[0034] The other end of the moving cross beam 4 is connected to the side rail walking assembly 5 through the side rail trolley 6. In the technical design of the railway bridge 1, there is no strict standard for the spacing between the rail 11 and the guardrail 12, so the spacing between the rail 11 and the guardrail 12 at different positions will vary to a certain extent. In this embodiment, the side rail walking assembly 5 is installed by using the movable side rail trolley 6, so that the side rail walking assembly 5 can adapt to the change in the spacing between the guardrail 12 and the rail 11.

[0035] The moving crossbeam 4 is preferably a beam structure with a constant cross section. The main body of the moving crossbeam 4 in this embodiment is made of a C-shaped steel 41 with an opening facing downward. The fence side trolley 6 includes an in-vehicle connecting seat 61 located in the C-shaped steel 41. Both ends of the in-vehicle connecting seat 61 are respectively installed with trolley running wheels 62. The in-vehicle connecting seat 61 is fixed with a stud 63 extending downward from the C-shaped steel 41. The stud 63 is fixed with an out-vehicle connecting seat 64. The out-vehicle connecting seat 64 is used to install the fence side running assembly 5. The fence side trolley 6 of this structure can be directly disassembled and assembled from one end of the moving crossbeam 4.

[0036] In order to further improve the smoothness of the movement of the fence side trolley 6, the main body of the moving beam 4 described in this embodiment is made of two parallel C-shaped steels 41 welded together, and each of the C-shaped steels 41 is respectively provided with an in-vehicle connecting seat 61 and a trolley running wheel 62. The fence side trolley 6 forms a four-point support for walking, and can be arranged with more studs 63 to achieve a more reliable fixed installation of the out-vehicle connecting seat 64.

[0037] The same is true for the lifting trolley 7, which will not be described in detail here.

[0038] Preferably, a beam reinforcement rib 42 arranged along the length direction is fixedly provided on the upper side of the C-shaped steel 41. With this simple structure, the bending resistance of the moving beam 4 is improved without significantly increasing the weight of the moving beam 4, thereby ensuring the reliability of use during the moving process.

[0039] The lifting device 71 utilizes the movable lifting trolley 7 to facilitate the placement of the walking board 9 at different positions. The lifting device 71 of this embodiment includes a hand-cranked small crane, which uses a steel wire rope to hang objects. The steel wire rope on it can be hoisted or released by a crank, and it can be self-locked when the hoisting or releasing stops at any time. Its structural principle is not repeated here.

[0040] Preferably, a floating connection mechanism 65 is provided between the guardrail side trolley 6 and the moving beam 4. The floating connection mechanism 65 enables the guardrail side trolley 6 to adapt to the changes in the distance between the guardrail 12 and the rail 11 while basically staying within the fixed position range on the moving beam 4, thereby preventing it from slipping out of the moving beam 4 and causing an accident.

[0041] The floating connection mechanism 65 of this embodiment includes floating holding springs 651 respectively arranged at the two ends of the fence side trolley 6 close to and away from the beam connection seat 43, and the other end of the floating holding spring 651 is connected to the moving beam 4. The symmetrical holding force of the two floating holding springs 651 realizes the automatic return of the fence side trolley 6 after the movement, and its elastic characteristics do not affect the adaptability of the fence side trolley 6 to the change of the distance between the guardrail 12 and the rail 11.

[0042] Based on the structure of the transporting crossbeam 4 of the present embodiment as two C-shaped steels 41 arranged in parallel, the present embodiment has tension spring connecting pins 652 transversely installed at both sides of the fence side trolley 6 close to and away from the crossbeam connecting seat 43, and tension spring connecting hooks 653 are fixedly installed at both ends of the fence side trolley 6 close to and away from the crossbeam connecting seat 43, and the floating holding spring 651 is installed between the tension spring connecting hook 653 and the tension spring connecting pin 652 on the corresponding side. Under this structural setting, the installation of the fence side trolley 6 on the transporting crossbeam 4 can be easily released by disassembling the tension spring connecting pin 652; the disassembly and assembly of the lifting trolley 7 is also convenient.

[0043] Based on the fact that the guardrail side trolley 6 only floats within a fixed range on the moving crossbeam 4, a crossbeam insertion tube 44 is provided on the crossbeam connection seat 43 of this embodiment, and the moving crossbeam 4 is inserted on the crossbeam insertion tube 44, and an insertion position fixer 45 is provided between the moving crossbeam 4 and the crossbeam insertion tube 44. Although the distance between the guardrail 12 and the rail 11 on the same railway bridge 1 varies slightly, the distance between the guardrail 12 and the rail 11 on different railway bridges 1 may vary greatly. Through the above insertion, this embodiment makes the moving crossbeam 4 have a surplus length to adapt to the large difference in the distance between the guardrail 12 and the rail 11 on different railway bridges 1. Based on the fact that the moving crossbeam 4 basically does not bear axial force, the insertion position fixer 45 is preferably implemented by radial bolts.

[0044] The fence side walking assembly 5 described in this embodiment includes a fence side direction seat 51 that is laterally swingably installed at the lower part of the fence side trolley 6. The fence side direction seat 51 is installed with two fence side walking wheels 52 arranged along the direction of the guardrail 12. Of course, the center of gravity of this embodiment is also preferably between the two fence side walking wheels 52 to promote the stability of the moving process. The fence side walking wheels 52 are also preferably insulating wheels to avoid the hazard of accidental leakage. Preferably, the rail side walking wheels 22 and the fence side walking wheels 52 both adopt a structure with wheel flanges at both ends of the wheel surface to promote smooth walking along the rails 11 or the guardrails 12.

[0045] Based on the fact that the spacing between the guardrail 12 and the rail 11 changes, when the spacing changes, it is equivalent to that the guardrail 12 is inclined relative to the rail 11, so the guardrail side walking component 5 in this embodiment is configured to be deflectable in direction to adapt to the above-mentioned direction change, and at the same time it can also adapt to the local bending deformation of the guardrail 12; and this deflection setting can slow down the floating action of the guardrail side trolley 6, avoid walking jams or even derailment, and help improve the smoothness of the use process of this embodiment.

[0046] Preferably, a temporary bridging rod 8 is placed on the moving crossbeam 4. Figure 6As shown, most railway bridges 1 have protruding escape platforms 13 at the sidewalks, and the escape platforms 13 cause the guardrails 12 to be interrupted. Figure 7 and Figure 8 As shown, in this embodiment, when walking to the shelter 13, the temporary lap rod 8 can be lapped between the two disconnected sections of the guardrail 12, so that the embodiment can maintain continuous walking. The temporary lap rod 8 includes a lap rod body 81 that can be buckled on the guardrail 12, and buckle protrusions 82 are fixed at both ends of the lap rod body 81, and the buckle protrusions 82 are folded and convex inwardly toward the guardrail 12. When lap joint is required, the temporary lap rod 8 is buckled downward on the guardrail 12, and the buckle protrusions 82 are stretched open by their own elasticity, and resume protrusions toward the guardrail 12 after the buckling is completed. According to this, the buckle protrusions 82 can promote the temporary lap rod 8 to be firmly lapped after the buckling, and the buckle protrusions 82 can form a limiting structure of the temporary lap rod 8 in the length direction of the guardrail 12 to prevent the temporary lap rod 8 from falling from the guardrail 12.

[0047] Preferably, a loading platform 23 is fixedly provided on the side of the rail side walking seat 21 close to the guardrail 12. The loading platform 23 can be used to store the walking board 9. Since it is located on the side of the rail side walking seat 21 close to the guardrail 12, the center of gravity of the carried walking board 9 is also located between the walking components on both sides, and the walking stability is good.

[0048] This embodiment can be disassembled into multiple components, such as a component consisting of a rail side walking assembly 2 and a rail side column 3, a component consisting of a lifting trolley 7 and a lifting device 71, a component consisting of a moving beam 4 and a beam connecting seat 43, a component consisting of a rail side walking assembly 5 and a rail side trolley 6, and small components such as a tension spring connecting pin 652. Each component is small in size and weight, and is convenient for transportation. It is also convenient to manually carry it to the railway bridge 1 for on-site assembly and use, so there is no need for lifting machinery to enter the site.

[0049] When operating, first apply for a window point from the railway dispatcher. No trains will run during the window point to ensure the safety of the operators. This embodiment is divided into multiple components, wherein the rail side walking assembly 2 and the rail side column 3 are one component, the lifting trolley 7 and the lifting device 71 are one component, the moving beam 4 and the beam connecting seat 43 are one component, the fence side walking assembly 5 and the fence side trolley 6 are one component, the tension spring connecting pin 652 is a separate component, and the floating tension spring 651 is a separate component. The on-site assembly method includes the following steps.

[0050] Step 1: First, erect the rail-side walking assembly 2 on the rail 11, and according to the height difference between the guardrail 12 and the rail 11 on the current railway bridge 1, select a suitable height selection through hole 461 and insert the height fixing pin 463 between the height fixing through hole 462.

[0051] Step 2: The crossbeam connecting seat 43 is mounted on the rail side column 3 using the height fine-tuning sleeve 464 , so that the moving crossbeam 4 and the rail side column 3 form a temporary connection.

[0052] Step three: the installation position fixer 45 is released to restore the installation freedom of the moving beam 4 in the beam installation tube 44 ; the moving beam 4 is pulled out to make the part between the two tension spring connecting pins 652 be located above the guardrail 12 .

[0053] Step 4: Install the lifting trolley 7 and the fence side trolley 6 from the end of the moving beam 4 away from the rail side column 3, and after installation, make the fence side walking assembly 5 rest on the guardrail 12; insert the tension spring connecting pins 652 on both sides of the fence side walking assembly 5 on the moving beam 4, and limit the fence side trolley 6 to prevent it from moving randomly or even falling off the moving beam 4.

[0054] Step 4: Rotate the height fine-tuning nut 465 to make the moving beam 4 horizontal; then tighten the height fixing nut 466 to fix the height of the moving beam 4.

[0055] Step five: Install the floating holding spring 651 on the tension spring connecting pin 652 and the tension spring connecting hook 653 on the corresponding side; in this process, the installation freedom between the moving beam 4 and the beam installation tube 44 is utilized to fine-tune the extension length of the moving beam 4 toward the guardrail 12, so that the floating holding springs 651 on both sides of the guardrail side trolley 6 are basically in a symmetrical force state.

[0056] Step 6: Fix the wearing position fixer 45 to complete the assembly.

[0057] The assembly process uses the steel rails 11 and guardrails 12 on the existing railway bridge 1 to complete the erection, which is convenient for on-site implementation. After assembly, the walking board 9 is placed on the loading platform 23, and the moving beam 4 is manually pushed to realize the movement of this embodiment. At this time, the moving beam 4 also serves as a handrail for pushing; after moving to the designated location, the walking board 9 is moved to the replacement position by using the lifting device 71. The discarded walking board 9 can also be moved to the loading platform 23 by the lifting device 71 and transported away, eliminating the labor output of manually lifting the walking board 9 over a long distance, which is labor-saving, convenient and safe.

[0058] The above shows and describes the basic principles, main features and advantages of the present invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments. The above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, which fall within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A moving device for replacing walking boards on railway bridges, which is installed between the rails and guardrails of railway bridges, and is characterized by: It includes a rail-side walking assembly on the rail and a guardrail-side walking assembly on the guardrail, a moving beam is erected above the rail-side walking assembly and the guardrail-side walking assembly, a rail-side column is fixedly provided on the rail-side walking assembly, a beam connecting seat sleeved on the rail-side column is fixedly provided on the moving beam, a height fixing mechanism is provided between the beam connecting seat and the rail-side column; a guardrail-side trolley and a lifting trolley are installed on the track of the moving beam, the lifting trolley is located between the guardrail-side trolley and the beam connecting seat, the guardrail-side walking assembly is installed on the guardrail-side trolley, and the lifting trolley is installed with a lifting device.

2. The moving device for replacing the walking board of a railway bridge according to claim 1, characterized in that: A floating connection mechanism is provided between the fence side trolley and the moving cross beam.

3. The moving device for replacing the walking board of a railway bridge according to claim 2, characterized in that: The floating connection mechanism comprises floating holding springs respectively arranged at two ends of the fence side trolley close to and far away from the beam connection seat, and the other end of the floating holding spring is connected to the moving beam.

4. The moving device for replacing the walking board of a railway bridge according to claim 2, characterized in that: The beam connecting seat is provided with a beam insertion tube, the moving beam is inserted into the beam insertion tube, and a insertion position fixer is provided between the moving beam and the beam insertion tube.

5. The moving device for replacing the walking board of a railway bridge according to claim 1, characterized in that: The fence side walking assembly comprises a fence side direction seat which is laterally swingably mounted on the lower part of the fence side trolley, and the fence side direction seat is provided with two fence side walking wheels which are arranged along the direction of the guardrail.

6. The moving device for replacing the walking board of a railway bridge according to claim 5, characterized in that: A positive retaining spring is provided between the fence side direction seat and the fence side trolley.

7. The moving device for replacing the walking board of a railway bridge according to claim 1, characterized in that: The rail side column includes a column fixing section fixedly connected to the rail side walking assembly, and a column movable section is sleeved on the column fixing section; the height fixing mechanism includes a plurality of height selection through holes arranged in sequence along the height direction on the column movable section, and a height fixing through hole is provided on the column fixing section, and a height fixing pin is passed through the height fixing through hole and one of the height selection through holes; a height fine-adjustment sleeve sleeved on the column movable section is fixedly provided on the crossbeam connecting seat, and a height fine-adjustment thread is provided on the column movable section at the lower end of the height fine-adjustment sleeve, and a height fine-adjustment nut that limits the height of the lower end of the height fine-adjustment sleeve is installed on the height fine-adjustment thread.

8. The moving device for replacing the walking board of a railway bridge as claimed in claim 1, characterized in that: The rail side traveling assembly comprises a rail side traveling seat, on which are mounted two rail side traveling wheels arranged along the direction of the rails, and the rail side column is fixedly arranged on the rail side traveling seat and located between the two rail side traveling wheels.

9. The moving device for replacing the walking board of a railway bridge according to claim 8, characterized in that: A loading platform is fixedly provided on one side of the rail side walking seat close to the guardrail.

10. The moving device for replacing the walking board of a railway bridge according to claim 1, characterized in that: The lifting device comprises a small hand-cranked crane.

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