CN220468640U - Wheeled portable catwalk construction platform of suspension bridge main cable protection of putting into service - Google Patents

Abstract

The utility model discloses a service suspension bridge main cable protection wheel type movable catwalk construction platform, which relates to the technical field of maintenance and repair of suspension bridge main cables and comprises a platform body, a jacking wheel mechanism and a suspension mechanism, wherein at least two ends of the platform body are provided with portal frames, and the front end of the platform body in the advancing direction is provided with a traction mechanism; the jacking wheel mechanism comprises a jacking component and a wheel body component, wherein the jacking component is connected to the inner side top edge of the portal frame, and the wheel body component is connected to the bottom end of the jacking component; the suspension mechanism spans over the platform body, and two ends of the suspension mechanism are in sliding connection with two side edges of the platform body. According to the utility model, the traction mechanism is arranged at the front end of the platform body in the advancing direction, the wheel body assembly and the traction mechanism are matched for advancing, so that the single advancing distance of the construction platform is greatly improved, the complicated steps of multiple operations of the traditional structure are omitted, the suspension mechanism is only used as a matched structure for the cable clip to be used, the obstacle crossing operation can be realized, and the use effect is better.

Description

Wheeled portable catwalk construction platform of suspension bridge main cable protection of putting into service

Technical Field

The utility model relates to the technical field of maintenance of main cables of suspension bridges, in particular to a movable catwalk construction platform for a main cable protection wheel type of a suspension bridge in service.

Background

Among the various bridge overhauls equipment of form, mainly divide into special bridge overhauls equipment and general bridge overhauls car. The special bridge maintenance equipment is mainly customized for large and medium-sized bridges, such as a great bridge of the great river of the Wuhan, a great bridge of the Shang-zu of the port and the like, the scale of the bridge determines that the maintenance engineering quantity is large, the special bridge maintenance equipment is generally not suitable for common small and medium-sized bridges, the general bridge maintenance vehicle is relatively common, and the flexible and multipurpose property of the special bridge maintenance equipment determines that the special bridge maintenance equipment can be widely suitable for the maintenance of the small and medium-sized bridges. For the suspension bridge, the main cable overhauling and maintenance work is very important, so that a plurality of overhauling platforms walking on the main cable exist. However, running on the main cable not only requires running stability, but also is an important problem to be solved because the cable clips and the handrail are fixed on the main cable at intervals, and how the maintenance platform can avoid obstacles to run during running.

In order to solve the technical problem, in the prior art 202310020002.6, a crawling type construction platform of a main cable of a suspension bridge and a traveling control method thereof are provided, the crawling type construction platform comprises a main cable, two ends of a platform body are provided with jacking mechanisms matched with the main cable, a hanging mechanism matched with the main cable is connected to the platform body in a sliding manner, the jacking mechanisms are used for realizing jacking support of the platform body relative to the main cable, the hanging mechanism is used for realizing sliding operation of the platform body relative to the main cable, and the jacking mechanisms and the hanging mechanisms are used alternately; the traction mechanism is connected between the platform body and the main cable and is used for dragging the platform body to slide along the length direction of the main cable when the hanging mechanism is used. The technology is characterized in that the jacking mechanism and the hanging mechanism are alternately used, when the hanging mechanism is used, the jacking mechanism is separated from the main cable, and the traction mechanism drags the platform body to slide along the length direction of the main cable; when the jacking mechanism is used, the hanging mechanism is separated from the main cable, so that the position of the hanging mechanism is adjusted, and a moving space is provided for the next dragging travel of the traction mechanism.

However, the technical scheme has the defect that the crawling drive mainly depends on the cooperation of the traction mechanism and the hanging mechanism when in use, so that the single travelling distance of the platform body is limited, and the position of the hanging mechanism needs to be continuously adjusted to adapt to the operation control of the platform body.

Therefore, how to further improve the structure of the platform body to enable the platform body to realize the driving control of a single larger stroke is a problem to be solved by those skilled in the art.

Disclosure of Invention

In view of the above, the utility model provides a main cable protection wheel type movable catwalk construction platform of a suspension bridge in service, which aims to solve the technical problems.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

a service suspension bridge main cable protection wheeled movable catwalk construction platform, comprising:

the platform comprises a platform body, wherein at least two ends of the platform body are provided with portal frames, and a traction mechanism is arranged at the front end of the platform body in the advancing direction;

the jacking wheel mechanism comprises a jacking component and a wheel body component, wherein the jacking component is connected to the inner side top edge of the portal frame, and the wheel body component is connected to the bottom end of the jacking component;

the hanging mechanism spans over the platform body, and two ends of the hanging mechanism are in sliding connection with two side edges of the platform body.

Through the technical scheme, the structure of the original construction platform is improved, the traction mechanism is arranged at the front end of the advancing direction of the platform body, the wheel body assembly and the traction mechanism are matched to advance, the single advancing distance of the construction platform is greatly improved, the complicated steps of multiple operations of the traditional structure are omitted, the hanging mechanism is only used as a matched structure used when a rope clip is needed, obstacle passing operation can be realized, the whole structure is optimized, and the use effect is better.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the traction mechanism includes traction hoisting machines mounted on two sides of a front end of a traveling direction of the platform body, and a fixed rope frame corresponding to the traction hoisting machines, a temporary dragging rope clip is fixed on a main cable in front of the traveling direction of the platform body, two fixed pulleys are mounted on the temporary dragging rope clip, and ropes of the traction hoisting machines are fixed with the fixed rope frame after bypassing the fixed pulleys. Through the arrangement of the traction mechanism, the travel distance of the traction can be prolonged, and the traction is more convenient to use.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the jacking component comprises a guide cylinder, a sliding rod and a hydraulic cylinder; the outer side wall of the guide cylinder is fixedly connected with the top end of the portal frame; the sliding rod is in sliding connection with the inner cavity of the guide cylinder, and the bottom end of the sliding rod is fixedly connected with the top end of the wheel body assembly; the fixed end of the hydraulic cylinder is connected with the top end of the portal frame, the telescopic direction of the hydraulic cylinder is the same as the sliding direction of the sliding rod, and the telescopic end of the hydraulic cylinder is connected with the top end of the wheel body assembly. Utilize the cooperation of guide cylinder and slide bar, form a rigidity direction power when the pneumatic cylinder stretches out and draws back for the pneumatic cylinder can only stretch out and draw back in axial direction, and the effect of side direction power is restricted by guide cylinder and slide bar, plays the good guard action to the pneumatic cylinder, can effectively promote the life of pneumatic cylinder, owing to the setting of slip deflector moreover, has solved the technical defect among the prior art.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, a hard plate body is fixed on the inner side wall of the guide cylinder; the hard plate body with the mating surface of slide bar is formed with smooth slip mating surface, the mounting hole has been seted up on the slip mating surface, the mounting hole is embedded to be equipped with graphite block, the exposure face of graphite block with slip mating surface parallel and level. A smooth sliding matching surface is formed by utilizing the hard plate, then a graphite block is embedded on the sliding matching surface, and the sliding lubrication effect is improved by utilizing the excellent performances of the sliding matching surface and the graphite block.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the wheel body assembly includes a wheel frame and a wheel body; the top end of the wheel frame is connected with the sliding rod and the hydraulic cylinder, a wheel shaft is fixed on the wheel frame, the wheel body is rotationally connected to the wheel shaft, and the diameters of the wheel body from two ends to the middle of the wheel body are gradually reduced to form an arc-shaped concave surface. The wheel body structure of the arc-shaped concave surface can adapt to the appearance of the main cable and walk on the main cable.

Preferably, in the above construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the construction platform further comprises a brake frame body, wherein the brake frame body comprises a lower arc-shaped plate and an upper arc-shaped plate, one side arc-shaped edge of the lower arc-shaped plate and one side arc-shaped edge of the upper arc-shaped plate are combined and fixed, so that an included angle is formed between the lower arc-shaped plate and the upper arc-shaped plate, and a side plugging plate is fixed between the straight line edges on two sides of the lower arc-shaped plate and the straight line edges on two sides of the upper arc-shaped plate; the braking frame body is connected with the wheel frame through a connecting piece, the braking frame body is positioned at the rear of the advancing direction of the wheel body, and a pointed end formed by the lower arc-shaped plate and the upper arc-shaped plate faces to the lower part of the arc-shaped concave surface of the wheel body. The braking frame is connected at the rear of wheel body advancing direction through the connecting piece, and when the wheel body takes place swift current car problem, curved wheel body structure and the arcwall face of main cable are including the tip extrusion that lower arc and last arc formed, can play good braking effect, and the greater frictional force is bigger more than the gravity, and braking effect is better more.

Preferably, in the above construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the construction platform further comprises a lifting steel cable, one end of the lifting steel cable is fixedly connected with the upper arc plate, the other end of the lifting steel cable passes through the wheel frame upwards, and the top end of the lifting steel cable is provided with a limiting head. Through setting up the pulling cable, when needing the back, utilize the pulling cable to lift the braking frame, prevent to the wheel body and reverse and produce the interference.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the suspension mechanism includes: the connecting part, the first enclasping frame and the second enclasping frame; the number of the connecting parts is two, the connecting parts are provided with sliding seats and rotating seats, and the two sliding seats of the two connecting parts are respectively connected with the connecting rails on two sides of the platform body in a sliding manner; one end of the first enclasping frame is rotationally connected with the rotating seat of one connecting part, and the other end of the first enclasping frame is provided with a first butt joint part; one end of the second enclasping frame is rotationally connected with the rotating seat of the other connecting part, the other end of the second enclasping frame is provided with a second butt joint part, and the second butt joint part is in butt joint with the first butt joint part and is locked and fixed through a locking piece. The hanging mechanism adopts two enclasping frames, corresponding butt joint can be realized through the butt joint part on the enclasping frames, and the hanging mechanism is locked through the locking piece, is easy to quickly combine and connect and split, can quickly combine and fix when being applied to a main cable, only needs to loosen the locking piece when the hanging mechanism needs to be split, and is convenient to apply, stable in structure and reliable.

Preferably, in the above construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the connecting track is i-steel, the sliding seat comprises two parallel plates, the inner sides of the two parallel plates are rotationally connected with a lower pulley block and an upper pulley block, the two groups of lower pulley blocks are respectively abutted with the bottom surfaces of two sides of an upper flange plate of the i-steel, and the two groups of upper pulley blocks are respectively abutted with the top surfaces of two sides of the upper flange plate of the i-steel. The upper and lower clamping structures formed by the upper pulley block and the lower pulley block are matched with the I-steel to form a stable sliding structure, so that the complexity of the structure can be reduced under the condition of stable operation.

Preferably, in the above-mentioned construction platform for a main cable protection wheel type movable catwalk of a suspension bridge in service, the suspension mechanism is configured to suspend the platform body on the main cable when passing through a cable clamp on the main cable, so that the wheel body assembly is separated from the main cable, and in a sliding process of the suspension mechanism and the platform body, the wheel body assembly is realized to pass over the cable clamp.

Compared with the prior art, the utility model discloses a main cable protection wheel type movable catwalk construction platform of a suspension bridge in service, which improves the structure of the original construction platform, and a traction mechanism is arranged at the front end of the advancing direction of a platform body, so that the traction mechanism is matched with a wheel body assembly to advance, the single advancing distance of the construction platform is greatly improved, the complicated steps of multiple operations of the traditional structure are omitted, the suspension mechanism is only used as a matched structure used when a cable clip is needed, obstacle crossing operation can be realized, the integral structure is optimized, and the use effect is better.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only embodiments of the present utility model, and that other drawings can be obtained according to the provided drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic structural view of a main cable protection wheel type movable catwalk construction platform of a suspension bridge in service, provided by the utility model;

FIG. 2 is a schematic diagram of a traction mechanism according to the present utility model;

FIG. 3 is a schematic structural view of a lift wheel mechanism according to the present utility model;

FIG. 4 is a schematic view of a portion of a jacking assembly according to the present utility model;

FIG. 5 is a schematic diagram of a hard plate according to the present utility model;

FIG. 6 is a schematic structural view of a brake structure according to the present utility model;

FIG. 7 is a schematic structural view of a brake frame body according to the present utility model;

FIG. 8 is a schematic view of a suspension mechanism according to the present utility model;

FIG. 9 is a schematic structural view of a first clasping frame according to the present utility model;

FIG. 10 is a schematic structural view of a second clasping frame according to the present utility model;

fig. 11 is a schematic structural view of a connection portion according to the present utility model.

Wherein:

1-a platform body;

11-portal frames; 12-connecting tracks;

2-a lifting wheel mechanism;

21-a jacking assembly; 211-a guide cylinder; 212-a sliding rod; 213-hydraulic cylinder; 214-a hard plate body; 2141—a sliding mating surface; 2142-mounting holes; 2143-graphite block; 22-wheel assembly; 221-wheel frame; 222-wheel body; 223-wheel axle; 23-a brake frame body; 231-lower arc plate; 232-an upper arc plate; 233-side closure plates; 234-a connector; 235-lifting a steel rope; 2351-a positioning head;

3-a suspension mechanism;

31-a connection; 311-rotating the seat; 3111-ear panels; 3112-a spindle; 312-sliding seat; 3121-parallel plates; 3122-lower pulley block; 3123-upper pulley block; 32-a first enclasping frame; 321-a first connecting rod; 322-a first arcuate lever; 33-a second clasping frame; 331-a second connecting rod; 332-a second arcuate lever; 34-locking member; 35-arc plate; 36-handle;

4-traction mechanism;

41-traction elevator; 42-fixing the rope rack; 43-dragging the temporary rope clip; 44-fixed pulley.

5-main cable.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1, the embodiment of the utility model discloses a main cable protection wheel type movable catwalk construction platform of a suspension bridge in service, which comprises the following components:

the platform comprises a platform body 1, wherein at least two ends of the platform body 1 are provided with portal frames 11, and a traction mechanism 4 is arranged at the front end of the platform body 1 in the advancing direction;

the jacking wheel mechanism 2 comprises a jacking assembly 21 and a wheel body assembly 22, wherein the jacking assembly 21 is connected to the inner side jacking edge of the portal frame 11, and the wheel body assembly 22 is connected to the bottom end of the jacking assembly 21;

and the hanging mechanism 3 spans over the platform body 1, and two ends of the hanging mechanism 3 are in sliding connection with two side edges of the platform body 1.

Referring to fig. 2, the traction mechanism 4 includes traction hoisting machines 41 mounted on both sides of the forward end of the platform body 1 in the traveling direction, and fixed rope brackets 42 corresponding to the traction hoisting machines 41, a temporary drag rope clip 43 is fixed to the main rope 5 in the forward direction of the platform body 1, two fixed pulleys 44 are mounted on the temporary drag rope clip 43, and ropes of the traction hoisting machines 41 are fixed to the fixed rope brackets 42 after passing around the fixed pulleys 44.

Referring to fig. 3 to 5, the jacking assembly 21 includes a guide cylinder 211, a slide rod 212, and a hydraulic cylinder 213; the outer side wall of the guide cylinder 211 is fixedly connected with the top end of the portal frame 11; the sliding rod 212 is in sliding connection with the inner cavity of the guide cylinder 211, and the bottom end of the sliding rod 212 is fixedly connected with the top end of the wheel body assembly 22; the fixed end of the hydraulic cylinder 213 is connected to the top of the gantry 11, the telescopic direction of the hydraulic cylinder 213 is the same as the sliding direction of the sliding rod 212, and the telescopic end of the hydraulic cylinder 213 is connected to the top of the wheel body assembly 22.

In order to further optimize the above technical solution, the inner sidewall of the guide cylinder 211 is fixed with a hard plate 214; the mating surfaces of the hard plate 214 and the sliding rod 212 form a smooth sliding mating surface 2141, the sliding mating surface 2141 is provided with a mounting hole 2142, the mounting hole 2142 is embedded with a graphite block 2143, and the exposed surface of the graphite block 2143 is flush with the sliding mating surface 2141.

In this embodiment, the hard plate 214 is a copper plate.

To further optimize the solution described above, wheel assembly 22 includes a wheel frame 221 and a wheel 222; the top of the wheel frame 221 is connected with the sliding rod 212 and the hydraulic cylinder 213, a wheel axle 223 is fixed on the wheel frame 221, the wheel body 222 is rotatably connected on the wheel axle 223, and the diameters of the wheel body 222 are gradually reduced from two ends to the middle to form an arc concave surface.

Referring to fig. 6 and 7, the brake frame body 23 further includes a brake frame body 23, where the brake frame body 23 includes a lower arc 231 and an upper arc 232, and one side arc edge of the lower arc 231 and one side arc edge of the upper arc 232 are combined and fixed, so that the lower arc 231 and the upper arc 232 form an included angle, and a side plugging plate 233 is fixed between the straight edges on two sides of the lower arc 231 and the straight edges on two sides of the upper arc 232; the brake frame body 23 is connected with the wheel frame 221 through a connecting piece 234, the brake frame body 23 is positioned at the rear of the advancing direction of the wheel body 222, and the tip formed by the lower arc-shaped plate 231 and the upper arc-shaped plate 232 faces to the lower part of the arc-shaped concave surface of the wheel body 222.

In order to further optimize the above technical solution, the device further comprises a pulling steel cable 235, wherein one end of the pulling steel cable 235 is fixedly connected with the upper arc 232, the other end of the pulling steel cable 235 passes through the wheel frame 221 upwards, and the top end of the pulling steel cable 235 is provided with a limiting head 2351.

In this embodiment, both the pull rope 235 and the connector 234 are flexible steel cords.

Referring to fig. 8 to 11, the suspension mechanism 3 includes: a connecting portion 31, a first clasping frame 32, and a second clasping frame 33; the number of the connecting parts 31 is two, the connecting parts 31 are provided with sliding seats 312 and rotating seats 311, and the two sliding seats 312 of the two connecting parts 31 are respectively connected with the connecting rails 12 on the two sides of the platform body 1 in a sliding manner; one end of the first enclasping frame 32 is rotationally connected with a rotating seat 311 of one connecting part 31, and the other end of the first enclasping frame 32 is provided with a first butt joint part; one end of the second holding frame 33 is rotatably connected with the rotating seat 311 of the other connecting part 31, the other end of the second holding frame 33 is provided with a second butt joint part, and the second butt joint part is matched with the first butt joint part and is locked and fixed by a locking piece 34.

To further optimize the above technical solution, the first arc-shaped rod 322 and the second arc-shaped rod 332 are provided with corresponding bolt holes, and the locking member 34 is a bolt and a nut fastened through the bolt holes.

To further optimize the above solution, the arc plate 35 is fixed inside the arc recess of the first arc rod 322 or the second arc rod 332.

In order to further optimize the above technical solution, a rubber plate is fixed on the arc-shaped concave surface of the inner side of the arc-shaped plate 35.

To further optimize the solution described above, the handle 36 is secured to the convex side of the first curved bar 322 and/or the second curved bar 332.

To further optimize the above solution, the rotating base 511 includes two ear plates 5111 and a rotating shaft 3112 fixed between the two ear plates 3111.

In order to further optimize the above technical solution, the connecting track 12 is i-steel, the sliding seat 312 includes two parallel plates 3121, the inner sides of the two parallel plates 3121 are rotatably connected with a lower pulley block 3122 and an upper pulley block 3123, the two sets of lower pulley blocks 3122 are respectively abutted with the bottom surfaces of two sides of the upper flange plate of the i-steel, and the two sets of upper pulley blocks 3123 are respectively abutted with the top surfaces of two sides of the upper flange plate of the i-steel.

In the embodiment, the traction mechanism 4 is arranged at the front end of the advancing direction of the platform body 1, and the wheel body assembly 22 and the traction mechanism 4 are matched for advancing, so that the single advancing distance of the construction platform is greatly improved. The suspension mechanism 3 is used for suspending on the main cable 5 when the platform body 1 passes through the cable clamp on the main cable 5, so that the wheel body assembly 22 is separated from the main cable 5, and the wheel body assembly 22 passes over the cable clamp in the sliding process of the suspension mechanism 3 and the platform body 1. The form of the kinematic engagement of the suspension mechanism 3 corresponds to that of the prior art 202310020002.6 and is not described in detail here.

In the present specification, each embodiment is described in a progressive manner, and each embodiment is mainly described in a different point from other embodiments, and identical and similar parts between the embodiments are all enough to refer to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant points refer to the description of the method section.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the utility model. Thus, the present utility model is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims (10)

1. The utility model provides a wheeled portable catwalk construction platform of suspension bridge main cable protection of putting into service which characterized in that includes:

the platform comprises a platform body (1), wherein at least two ends of the platform body (1) are provided with portal frames (11), and a traction mechanism (4) is arranged at the front end of the platform body (1) in the advancing direction;

the lifting wheel mechanism (2), the lifting wheel mechanism (2) comprises a lifting assembly (21) and a wheel body assembly (22), the lifting assembly (21) is connected to the inner side top edge of the portal frame (11), and the wheel body assembly (22) is connected to the bottom end of the lifting assembly (21);

the hanging mechanism (3), the hanging mechanism (3) stretches across the top of the platform body (1), and both ends are connected with the two side edges of the platform body (1) in a sliding way.

2. The movable catwalk construction platform with the main cable protection wheel for the suspension bridge in service according to claim 1, wherein the traction mechanism (4) comprises traction hoisting machines (41) arranged on two sides of the front end of the platform body (1) in the advancing direction and fixed rope brackets (42) corresponding to the traction hoisting machines (41), a temporary dragging rope clamp (43) is fixed on a main cable (5) in front of the platform body (1) in the advancing direction, two fixed pulleys (44) are arranged on the temporary dragging rope clamp (43), and ropes of the traction hoisting machines (41) are fixed with the fixed rope brackets (42) after bypassing the fixed pulleys (44).

3. A main cable protection wheeled mobile catwalk construction platform for a suspension bridge according to claim 1, wherein the jacking assembly (21) comprises a guide cylinder (211), a sliding rod (212) and a hydraulic cylinder (213); the outer side wall of the guide cylinder (211) is fixedly connected with the top end of the portal frame (11); the sliding rod (212) is in sliding connection with the inner cavity of the guide cylinder (211), and the bottom end of the sliding rod (212) is fixedly connected with the top end of the wheel body assembly (22); the fixed end of the hydraulic cylinder (213) is connected with the top end of the portal frame (11), the telescopic direction of the hydraulic cylinder (213) is the same as the sliding direction of the sliding rod (212), and the telescopic end of the hydraulic cylinder (213) is connected with the top end of the wheel body assembly (22).

4. A main cable protection wheel type movable catwalk construction platform of a suspension bridge in service according to claim 3, wherein a hard plate body (214) is fixed on the inner side wall of the guide cylinder (211); the hard plate body (214) and the matching surface of the sliding rod (212) are provided with smooth sliding matching surfaces (2141), the sliding matching surfaces (2141) are provided with mounting holes (2142), the mounting holes (2142) are embedded with graphite blocks (2143), and the exposed surfaces of the graphite blocks (2143) are flush with the sliding matching surfaces (2141).

5. A main cable protection wheeled mobile catwalk construction platform for an in-service suspension bridge according to claim 3, wherein the wheel body assembly (22) comprises a wheel frame (221) and a wheel body (222); the top end of the wheel frame (221) is connected with the sliding rod (212) and the hydraulic cylinder (213), an axle (223) is fixed on the wheel frame (221), the wheel body (222) is rotationally connected to the axle (223), and the diameters of the wheel body (222) from two ends to the middle are gradually reduced to form an arc-shaped concave surface.

6. The movable catwalk construction platform of a main cable protection wheel type of a suspension bridge according to claim 5, further comprising a brake frame body (23), wherein the brake frame body (23) comprises a lower arc plate (231) and an upper arc plate (232), one side arc edge of the lower arc plate (231) and one side arc edge of the upper arc plate (232) are combined and fixed, so that an included angle is formed between the lower arc plate (231) and the upper arc plate (232), and a side blocking plate (233) is fixed between the straight line edges on two sides of the lower arc plate (231) and the straight line edges on two sides of the upper arc plate (232); the braking frame body (23) is connected with the wheel frame (221) through a connecting piece (234), the braking frame body (23) is positioned at the rear of the advancing direction of the wheel body (222), and a tip formed by the lower arc-shaped plate (231) and the upper arc-shaped plate (232) faces to the lower part of the arc-shaped concave surface of the wheel body (222).

7. The movable catwalk construction platform of a main cable protection wheel type of a suspension bridge according to claim 6, further comprising a lifting steel cable (235), wherein one end of the lifting steel cable (235) is fixedly connected with the upper arc plate (232), the other end of the lifting steel cable (235) passes through the wheel frame (221) upwards, and a limiting head (2351) is arranged at the top end of the lifting steel cable (235).

8. A main cable protection wheeled mobile catwalk construction platform for a suspension bridge according to any of claims 1-7, wherein the suspension mechanism (3) comprises: a connecting part (31), a first enclasping frame (32) and a second enclasping frame (33); the number of the connecting parts (31) is two, the connecting parts (31) are provided with sliding seats (312) and rotating seats (311), and the two sliding seats (312) of the two connecting parts (31) are respectively connected with the connecting rails (12) on two sides of the platform body (1) in a sliding manner; one end of the first enclasping frame (32) is rotationally connected with the rotating seat (311) of one connecting part (31), and the other end of the first enclasping frame (32) is provided with a first butt joint part; one end of the second enclasping frame (33) is rotationally connected with the rotating seat (311) of the other connecting part (31), the other end of the second enclasping frame (33) is provided with a second butt joint part, and the second butt joint part is matched with the first butt joint part and is locked and fixed through a locking piece (34).

9. The movable catwalk construction platform of a main cable protection wheel type of a suspension bridge according to claim 8, wherein the connecting track (12) is an i-steel, the sliding seat (312) comprises two parallel plates (3121), the inner side surfaces of the two parallel plates (3121) are rotationally connected with a lower pulley block (3122) and an upper pulley block (3123), the two groups of lower pulley blocks (3122) are respectively abutted with the bottom surfaces of two sides of an upper flange plate of the i-steel, and the two groups of upper pulley blocks (3123) are respectively abutted with the top surfaces of two sides of the upper flange plate of the i-steel.

10. A suspension bridge main cable protection wheeled mobile catwalk construction platform according to claim 8, characterized in that the suspension mechanism (3) is used for suspending on the main cable (5) when the platform body (1) passes through the cable clamp on the main cable (5), so that the wheel body assembly (22) is separated from the main cable (5), and the wheel body assembly (22) is realized to pass over the cable clamp in the sliding process of the suspension mechanism (3) and the platform body (1).