CN217810560U - Bridge fabrication machine - Google Patents

Abstract

The utility model provides a bridge fabrication machine, which comprises a main beam structure, a main supporting leg structure and a crown block system; the main beam structure comprises an outer main beam, an inner main beam and a driving assembly; the main supporting leg structure comprises a first main supporting leg and a second main supporting leg, one end of the first main supporting leg is connected with the outer main beam in a sliding mode, and the other end of the first main supporting leg is connected with the foundation; one end of the second main supporting leg is connected with the inner main beam in a sliding way, and the other end of the second main supporting leg is connected with the foundation; the overhead traveling crane system is used for hoisting various materials required by the bridge fabrication machine in the construction process, and comprises a sliding trolley, a winch and a lifting appliance; the sliding trolley slides on the outer main beam and the inner main beam, the winch is connected with the sliding trolley, and the lifting appliance is installed on a steel wire rope of the winch. The utility model discloses in through setting up the overhead traveling crane system to carry out handling to appointed position with all materials or equipment through overhead traveling crane system, need not to build the transport corridor in addition, thereby furthest reduces the influence to the environment.

Description

Bridge fabrication machine

Technical Field

The utility model relates to a bridge erection construction technical field especially relates to a bridge fabrication machine.

Background

The bridge girder erection machine is equipment for placing prefabricated beam pieces on a prefabricated bridge pier. Bridge girder erection machines belong to the crane category, as their main function is to lift the beam piece up and then transport it into position and put it down. Along with the increasing of national mountain land rail traffic engineering, the demand of bridge construction equipment applied to narrow mountain land space is also increasing, the appeal of the bridge construction equipment on the aspects of environmental protection, energy conservation and reduction of influences on the surrounding environment is also increasing, and particularly in the fragile environment area, the requirement of' no way for traffic is required, and higher requirements are provided for construction equipment.

However, the traditional bridge girder erection machine has the following defects:

firstly, only bridge erection can be carried out, the function is single, and the construction of pile foundation and pier stud structures cannot be carried out;

secondly, the prefabrication and assembly are realized based on the main beam, the capping beam, the pier stud, the pile foundation and the like, the bridge girder erection machine can realize the installation of the prefabricated main beam, the capping beam and the pier stud structure, but the installation of the lower structure of the bridge can only be realized by selecting a truck crane or a crawler crane through a temporary road, and the truck crane or the crawler crane is only limited to the engineering with good geological conditions and large operation space under the bridge;

thirdly, with the technical development of bridge girder erection machines, the existing bridge girder erection machines can realize the installation of precast piles, but the precast piles cannot be driven into hard geology and cannot adapt to complex mountain environments.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bridge fabrication machine, which comprises a main beam structure, a main supporting leg structure and a crown block system;

the main beam structure comprises an outer main beam, an inner main beam and a driving assembly for driving the inner main beam to displace relative to the outer main beam;

the main supporting leg structure comprises a first main supporting leg and a second main supporting leg, one end of the first main supporting leg is connected with the outer main beam in a sliding mode, and the other end of the first main supporting leg is connected with the foundation and used for providing support for the outer main beam; one end of the second main supporting leg is connected with the inner main beam in a sliding mode, and the other end of the second main supporting leg is connected with the foundation and used for providing support for the inner main beam;

the overhead traveling crane system is used for hoisting various materials required by the bridge fabrication machine in the construction process, and comprises a sliding trolley, a winch and a lifting appliance; the sliding trolley slides on the outer main beam and the inner main beam, the winch is connected with the sliding trolley, and the lifting appliance is installed on a steel wire rope of the winch.

Optionally, the overhead travelling crane system further comprises a support frame for connecting the sliding trolley and the winch;

the supporting frame is of a frame structure comprising a second cross beam, a second longitudinal beam and a second vertical beam; the sliding trolley is arranged on the second vertical beam; the winch is arranged on the second cross beam.

Optionally, a limiting assembly and a sliding assembly are further arranged on the second cross beam;

the limiting assemblies are provided with two groups which are respectively arranged at two ends along the displacement direction of the winch;

the sliding assembly comprises a sliding rail, a sliding block arranged on the sliding rail and a sliding plate arranged on the sliding block, the sliding rail is fixedly arranged on the second cross beam, the sliding block is slidably connected with the sliding rail, the sliding plate is fixedly connected with the sliding block, and a winch is fixedly arranged on the sliding plate.

Optionally, the driving assembly includes a bracket, a first driving member, a second driving member and a bolt, the bracket is mounted on the outer main beam, a fixed end of the first driving member is connected to the bracket, and a driving end of the first driving member is connected to the inner main Liang Xianglian, a fixed end of the second driving member is connected to the bracket, and a driving end of the second driving member is mounted with the bolt; the inner main beam slides in the outer main beam through the driving of the first driving piece, and when the inner main beam is displaced to a specified position, the second driving piece drives the bolt to be inserted into the pin hole formed in the outer main beam so as to realize the relative limit fixation between the outer main beam and the inner main beam.

Optionally, the first main leg and the second main leg have the same structure, and each of the first main leg and the second main leg comprises a fixed support assembly, a movable support assembly, a displacement driving assembly and a sliding assembly;

the fixed supporting component and the movable supporting component are sleeved with each other;

the displacement driving component drives the movable supporting component to displace along the height direction relative to the fixed supporting component;

the sliding assembly is arranged at one end of the movable supporting assembly, which is far away from the fixed supporting assembly, and the sliding assembly is connected with the outer main beam or the inner main beam in a sliding manner.

Optionally, the sliding assembly includes a base, a driving wheel driving member, a driving wheel assembly and a driven wheel assembly;

the base is fixedly connected with the movable supporting assembly and comprises a first vertical section, a horizontal section and a second vertical section which are sequentially connected with one another;

the driving wheel assembly is arranged on the first vertical section and is connected with the driving wheel driving piece;

the driven wheel assembly is arranged on the second vertical section and forms a sliding structure clamped on the outer main beam or the inner main beam through mutual matching with the driving wheel assembly.

Besides the structure, the bridge fabrication machine also comprises a rear supporting leg structure arranged at one end of the outer main beam far away from the inner main beam; the rear supporting leg structure comprises a fixing frame, a walking driving part and a walking wheel assembly, wherein the walking driving part and the walking wheel assembly are arranged on the fixing frame, the fixing frame is connected with one end of a main beam in the outer main Liang Yuanli, and the walking wheel assembly is driven by the walking driving part to move on the bridge pier.

In addition to the structure, the bridge fabrication machine also comprises a walking type pile foundation module which is used for bearing the hole forming equipment and driving the hole forming equipment to displace on the foundation; the walking pile foundation module comprises a pile base, a support arm assembly and a hole forming device;

the pile foundation base comprises a base body and a displacement assembly arranged on the base body, and the displacement assembly drives the base body to displace on the foundation;

the supporting arm assembly comprises a fixed arm and an adjusting arm which are hinged with each other, one end of the fixed arm, which is far away from the adjusting arm, is fixedly connected with the base body, one end of the adjusting arm, which is far away from the fixed arm, is fixedly connected with the pore-forming equipment, an adjusting assembly is further arranged between the fixed arm and the adjusting arm, and the adjusting arm is driven by the adjusting assembly to perform pitching and left-right swinging;

the hole forming equipment is used for realizing drilling.

Compared with the prior art, the utility model discloses following beneficial effect has:

(1) The utility model discloses in through setting up the overhead traveling crane system to carry out handling to appointed position with all materials or equipment through overhead traveling crane system, need not to build the transport corridor in addition, thereby furthest reduces the influence to the environment.

(2) The utility model discloses in set up the girder structure into retractable structure, through the flexible length of difference, so that the utility model discloses can cover a plurality of works of different positions to realize the operation of a plurality of stations of different positions, can adapt to the construction of making a bridge of little curvature radius again.

(3) The utility model discloses in set up to telescopic + module assembly formula structure through with main landing leg structure, make it can adapt to the complicated topography in mountain region, guarantee the high adaptability of construction.

In addition to the above-described objects, features and advantages, the present invention has other objects, features and advantages. The present invention will be described in further detail with reference to the drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

fig. 1 is a schematic front view of a bridge fabrication machine after a walking pile foundation module is hidden in the embodiment of the present invention;

FIG. 2 is a front schematic view of the main beam structure of FIG. 1;

FIG. 3 is a front schematic view of the drive assembly of FIG. 2;

FIG. 4 is a schematic front view of the main leg construction of FIG. 1;

FIG. 5 is an isometric view of the slide assembly of FIG. 4;

FIG. 6 is an isometric view of the rear leg structure of FIG. 1;

FIG. 7 is an isometric view of the overhead crane system of FIG. 1;

fig. 8 is an axial schematic view of a walking pile module in a bridge fabrication machine according to an embodiment of the present invention;

fig. 9 is a schematic view of a bridge fabrication machine in an initial construction state according to an embodiment of the present invention.

Wherein:

1. the main beam structure comprises a main beam structure, 1.1, an outer main beam, 1.2, an inner main beam, 1.3, a driving assembly, 1.3.1, a support, 1.3.2, a main oil cylinder, 1.3.3 and a bolt oil cylinder;

2. the main supporting leg structure comprises a main supporting leg structure 2.1, a fixed supporting component 2.2, a movable supporting component 2.3, a sliding component 2.3.1, a base 2.3.2, a driving wheel driving component 2.3.3, a driving wheel component 2.3.4 and a driven wheel component;

3. the walking mechanism comprises a rear supporting leg structure, 3.1 parts of a fixing frame, 3.1.1 parts of a first cross beam, 3.1.2 parts of a first longitudinal beam, 3.1.3 parts of a first vertical beam, 3.2 parts of a walking driving piece, 3.3 parts of a walking wheel assembly, 3.3.1 parts of a driving walking wheel group, 3.3.2 parts of a driven walking wheel group;

4. the crane comprises a crown block system, 4.1, a support frame, 4.1.1, a second cross beam, 4.1.2, a second longitudinal beam, 4.1.3, a second vertical beam, 4.1.4, a reinforcing beam, 4.1.5, a limiting block, 4.2, a sliding trolley, 4.3, a winch, 4.4 and a lifting appliance;

5. the method comprises the following steps of (1) a walking type pile foundation module, 5.1 a pile foundation base, 5.2 a supporting arm assembly, 5.3 and hole forming equipment;

01. the foundation, 02, pier, 03, the equipment is leveled in place.

Detailed Description

In order to make the above objects, features, advantages, and the like of the present invention more clearly understandable, embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be noted that the drawings of the utility model all adopt simplified forms and all use non-precise proportions, and are only used for conveniently and clearly assisting in explaining the implementation of the utility model; the number mentioned in the present invention is not limited to the specific number in the example of the drawings; the directions or positional relationships indicated in the "front" middle "rear" left "right" upper "lower" top "bottom" middle "etc. in the present invention are all based on the directions or positional relationships shown in the drawings of the present invention, and do not indicate or suggest that the indicated device or component must have a specific direction, and cannot be understood as a limitation of the present invention.

In this embodiment:

referring to fig. 1, a bridge fabrication machine comprises a main beam structure 1, a main support leg structure 2 and a crown block system 4; the main beam structure 1 comprises an outer main beam 1.1, an inner main beam 1.2 and a driving assembly 1.3 for driving the inner main beam 1.2 to displace relative to the outer main beam 1.1; the main supporting leg structure 2 comprises a first main supporting leg and a second main supporting leg, wherein one end of the first main supporting leg is connected with the outer main beam 1.1 in a sliding mode, and the other end of the first main supporting leg is connected with the foundation 01 and used for providing support for the outer main beam 1.1; one end of the second main supporting leg is connected with the inner main beam 1.2 in a sliding mode, and the other end of the second main supporting leg is connected with the foundation 01 and used for supporting the inner main beam 1.2; the overhead traveling crane system 4 is used for hoisting various materials required by the bridge fabrication machine in the construction process, and the overhead traveling crane system 4 comprises a sliding trolley 4.2, a winch 4.3 and a lifting appliance 4.4; the sliding trolley 4.2 slides on the outer main beam 1.1 and the inner main beam 1.2, the winch 4.3 is connected with the sliding trolley 4.2, and the lifting appliance 4.4 is installed on a steel wire rope of the winch 4.3.

Optionally, the bridge fabrication machine further comprises a rear support leg structure 3 arranged at one end of the outer main beam 1.1 far away from the inner main beam 1.2, and a walking pile foundation module 5 for bearing the hole forming equipment and driving the hole forming equipment to displace on the foundation 01; the rear support leg structure 3 is used for driving the main girder structure 1 to displace on the bridge pier 02, so that the operation range of the bridge fabrication machine is wider.

Referring to fig. 2 and 3, the main beam structure 1 includes an outer main beam 1.1, an inner main beam 1.2, and a driving assembly 1.3 for driving the inner main beam 1.2 to displace relative to the outer main beam 1.1; the outer main beam 1.1 is sleeved on the inner main beam 1.2; the driving component 1.3 includes a support 1.3.1, a first driving component 1.3.2 (specifically, the first driving component 1.3.2 is preferably configured as an oil cylinder structure), a second driving component 1.3.3 (specifically, the second driving component 1.3.3 is preferably configured as an oil cylinder structure), and a bolt, the support 1.3.1 is installed on the outer main beam 1.1, a fixed end of the first driving component 1.3.2 is connected with the support 1.3.1, while a driving end thereof is connected with the inner main beam 1.2, a fixed end of the second driving component 1.3.3 is connected with the support 1.3.1, while a driving end thereof is installed with the bolt; the inner main beam 1.2 slides in the outer main beam 1.1 under the driving of the first driving piece 1.3.2, and when the inner main beam is displaced to a specified position, the second driving piece 1.3.3 drives a bolt to be inserted into a pin hole arranged on the outer main beam 1.1 so as to realize the relative limit and fixation between the outer main beam 1.1 and the inner main beam 1.2; when the relative position between the inner main beam 1.2 and the outer main beam 1.1 needs to be changed, the second driving piece 1.3.3 drives the bolt to be separated from the pin hole arranged on the outer main beam 1.1, and the first driving piece 1.3.2 drives the inner main beam 1.2 to slide in the outer main beam 1.1, so that the relative position between the inner main beam 1.2 and the outer main beam 1.1 is changed.

With reference to fig. 4 and 5, the main leg structure 2 comprises a fixed support assembly 2.1, a movable support assembly 2.2 and a sliding assembly 2.3;

the fixed supporting component 2.1 is sleeved on the movable supporting component 2.2, one end of the fixed supporting component 2.1, far away from the movable supporting component 2.2, is connected with the foundation 01, and one end of the movable supporting component 2.2, far away from the fixed supporting component 2.1, is connected with the sliding component 2.3;

a displacement driving assembly is further arranged between the fixed supporting assembly 2.1 and the movable supporting assembly 2.2, and the movable supporting assembly 2.2 is driven by the displacement driving assembly to displace along the vertical direction so as to adapt to supporting requirements of different heights;

the sliding component 2.3 is arranged at one end of the movable supporting component 2.2 far away from the fixed supporting component 2.1 and is used for being slidably connected with the outer main beam 1.1 or the inner main beam 1.2.

Optionally, in order to effectively ensure the supporting strength of the fixed supporting component 2.1, the fixed supporting component 2.1 is preferably configured as a welded structure.

Optionally, the movable supporting component 2.2 is configured to include at least one telescopic component connected to the fixed supporting component 2.1, one end of the telescopic component is connected to the fixed supporting component 2.1 through the displacement driving component, and one end of the telescopic component, which is far away from the fixed supporting component 2.1, is fixedly connected to the sliding component 2.3.

Optionally, the sliding assembly 2.3 includes a base 2.3.1, a driving wheel driving member 2.3.2, a driving wheel assembly 2.3.3, and a driven wheel assembly 2.3.4; the base 2.3.1 is arranged into a U-shaped structure formed by sequentially connecting a first vertical section, a horizontal section and a second vertical section; the two groups of driving wheel assemblies 2.3.3 are arranged in parallel, each group of driving wheel assemblies 2.3.3 comprises a plurality of driving wheels arranged on the first vertical section, the plurality of driving wheels are arranged in parallel in sequence from top to bottom, and the plurality of driving wheels are respectively connected with driving wheel driving parts 2.3.2 (namely, the driving wheel driving parts 2.3.2 are arranged into a plurality of parts which are arranged in one-to-one correspondence with the driving wheels); the driven wheel assemblies 2.3.4 are provided with two groups which are arranged in parallel, the two groups of driven wheel assemblies 2.3.4 respectively comprise a plurality of driven wheels arranged on the second vertical section, the driven wheels are arranged in a mode of being sequentially arranged in parallel from top to bottom, and the driven wheels are preferably arranged on the same horizontal plane with the driving wheels respectively; a plurality of action wheels and a plurality of follow are from the mutual interval setting between the driving wheel to form the centre gripping sliding structure of centre gripping on outer main beam 1.1 or interior main beam 1.2.

Optionally, the displacement driving assembly is preferably configured as one or a combination of more than one of structures such as an air cylinder, an oil cylinder or a chain and sprocket assembly.

Referring to fig. 6, the rear leg structure 3 includes a fixing frame 3.1, a walking driving member 3.2 and a walking wheel assembly 3.3; the fixing frame 3.1 is fixedly connected with one end, far away from the inner main beam 1.2, of the outer main beam 1.1, the fixing frame 3.1 comprises a first cross beam 3.1.1, a first longitudinal beam 3.1.2 and a first vertical beam 3.1.3, the first cross beam 3.1.1, the first longitudinal beam 3.1.2 and the first vertical beam 3.1.3 are provided with a plurality of pieces, and the plurality of pieces of the first cross beam 3.1.1, the first longitudinal beam 3.1.2 and the first vertical beam 3.1.3 are mutually welded to form a frame structure; the walking wheel assembly 3.3 comprises a driving walking wheel set 3.3.1 and a driven walking wheel set 3.3.2 which are arranged at intervals, the driving walking wheel set 3.3.1 is connected with a walking driving piece 3.2 and is driven by the walking driving piece 3.2 to displace, and the driving walking wheel set 3.3.1 and the driven walking wheel set 3.3.2 are respectively connected with the extending ends of the two vertical beams; the fixed end of the walking driving piece 3.2 is connected with the fixed frame 3.1 and the driving end is connected with the driving walking wheel set 3.3.1. Preference is given here to: the ground engaging wheel set 3.3.1 preferably comprises a plurality of ground engaging wheels arranged in parallel with one another, and at least one of the plurality of ground engaging wheels is interconnected with the drive end of the travel drive member 3.2; the driven travelling wheel set 3.3.2 is preferably provided with a plurality of driven travelling wheels which are arranged in parallel; the travel drive 3.2 is preferably provided as a drive such as a motor.

Referring to fig. 7, the overhead travelling crane system 4 includes a support frame 4.1, a sliding trolley 4.2, a winch 4.3 and a spreader 4.4; the supporting frame 4.1 comprises a second cross beam 4.1.1, a second longitudinal beam 4.1.2 and a second vertical beam 4.1.3, the second cross beam 4.1.1, the second longitudinal beam 4.1.2 and the second vertical beam 4.1.3 are provided with a plurality of pieces, and the plurality of pieces of the second cross beam 4.1.1, the second longitudinal beam 4.1.2 and the second vertical beam 4.1.3 are welded with each other to form a frame structure; the sliding trolley 4.2 is arranged on the second vertical beam 4.1.3 and is used for displacing on the outer main beam 1.1 so as to adjust the position of the crown block system 4 on the outer main beam 1.1, thereby realizing the purpose of conveying required materials to a specified position; the winch 4.3 is adjustably mounted on the second cross beam 4.1.1, a lifting appliance 4.4 is mounted at the tail end of a steel wire rope of the winch 4.3, and the lifting appliance 4.4 is connected with required materials to realize lifting of the required materials. Preference is given here to: the spreader 4.4 is preferably arranged as a hook structure.

Optionally, in order to increase the overall supporting strength of the supporting frame 4.1, reinforcing beams 4.1.4 are arranged between the second vertical beam 4.1.3 and the second cross beam 4.1.1, and two ends of each reinforcing beam 4.1.4 are fixedly connected with the second vertical beam 4.1.3 and the second cross beam 4.1.1 in a welding manner.

Optionally, in order to prevent the winch 4.3 from being separated from the second beam 4.1.1 when the second beam 4.1.1 is displaced, two sets of limiting blocks 4.1.5 are arranged on the second beam 4.1.1, and the two sets of limiting blocks 4.1.5 are respectively arranged at two ends of the winch 4.3 in the displacement direction.

Optionally, in order to realize that the winch 4.3 displaces on the second cross beam 4.1.1, a sliding assembly is further arranged on the second cross beam 4.1.1, the sliding assembly comprises a sliding rail, a sliding block arranged on the sliding rail and a sliding plate arranged on the sliding block, and the winch 4.3 is fixedly arranged on the sliding plate.

Referring to fig. 8, the walking pile foundation module 5 comprises a pile base 5.1, a support arm assembly 5.2 and a hole forming device 5.3; the pile base 5.1 is provided with a displacement component so as to drive the walking type pile foundation module 5 to displace on the foundation 01 through the displacement component; support arm component 5.2 includes fixed arm and regulating arm, and the one end and the pile foundation base 5.1 of fixed arm link firmly, the other end and the regulating arm rotatable coupling of fixed arm, and the regulating arm links firmly with pore-forming equipment 5.3 to drive pore-forming equipment 5.3 and carry out displacement and omnidirectional regulation, thereby make pore-forming equipment 5.3 displacement to assigned position, realize drilling.

Optionally, an adjusting assembly is further arranged between the fixed arm and the adjusting arm, the adjusting assembly is preferably set to be an oil cylinder, two ends of the oil cylinder are respectively hinged to the fixed arm and the adjusting arm, and the adjusting arm is driven by the oil cylinder to realize actions such as rotation, pitching and the like relative to the fixed arm (specifically, the specific structure of the adjusting assembly can refer to the structure in the prior art).

The process of implementing the bridge fabrication machine is concretely as follows:

step one, installing the bridge fabrication machine, arranging a plurality of main support leg structures according to needs (specifically, one ends of the main support leg structures are sequentially connected with an outer main beam or an inner main beam in a sliding manner according to needs, and the other ends of the main support leg structures are connected with a foundation, so that the main beam structures are supported), and meanwhile, conveying the bridge fabrication machine to an initial position (the initial position is shown in fig. 9, the initial state of the bridge fabrication machine is that a rear support leg is arranged on a pier, a first main support leg structure is fixed, and the inner main beam and the outer main beam are in a retraction state with each other);

step two, pile foundation construction is carried out on the first pier station: hoisting and transporting the site leveling equipment and the second main supporting leg structure to a first pier station through a main beam structure and an overhead traveling crane system, and hoisting and transporting the walking type pile foundation module to the first pier station through the main beam structure and the overhead traveling crane system to carry out pile foundation construction;

step three, moving to a second pier station: keeping the first main supporting leg structure and the second main supporting leg structure fixed, and simultaneously integrally moving the main beam structure forward to a second pier station under the action of the rear supporting leg;

step four, carrying out bearing platform construction on the first pier station and carrying out pile foundation construction on the second pier station: hoisting and transporting the site leveling equipment and the third main supporting leg structure to a second pier station through a main beam structure and a crown block system, fixing the third main supporting leg, and simultaneously performing bearing platform construction on the first pier station; then the walking type pile foundation module is conveyed to a second pier station through a main beam structure and an overhead traveling crane system to carry out pile foundation construction;

and step five, repeating the step three and the step four until all the pier stations are out of range to complete the bearing platform construction and the pile foundation construction, and entering the next cycle operation.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (8)

1. A bridge fabrication machine is characterized by comprising a main beam structure (1), a main supporting leg structure (2) and a crown block system (4);

the main beam structure (1) comprises an outer main beam (1.1), an inner main beam (1.2) and a driving assembly (1.3) for driving the inner main beam (1.2) to displace relative to the outer main beam (1.1);

the main supporting leg structure (2) comprises a first main supporting leg and a second main supporting leg, one end of the first main supporting leg is connected with the outer main beam (1.1) in a sliding mode, and the other end of the first main supporting leg is connected with the foundation (01) and used for providing support for the outer main beam (1.1); one end of the second main supporting leg is connected with the inner main beam (1.2) in a sliding mode, and the other end of the second main supporting leg is connected with the foundation (01) and used for providing support for the inner main beam (1.2);

the overhead traveling crane system (4) is used for hoisting various materials required by the bridge fabrication machine in the construction process, and the overhead traveling crane system (4) comprises a sliding trolley (4.2), a winch (4.3) and a lifting appliance (4.4); the sliding trolley (4.2) slides on the outer main beam (1.1) and the inner main beam (1.2), the winch (4.3) and the sliding trolley (4.2) are connected with each other, and the lifting appliance (4.4) is installed on a steel wire rope of the winch (4.3).

2. A bridge fabrication machine as claimed in claim 1, wherein the crown block system (4) further comprises a support frame (4.1) for connecting the skid steer trolley (4.2) and the hoist (4.3);

the supporting frame (4.1) is arranged into a frame structure comprising a second cross beam (4.1.1), a second longitudinal beam (4.1.2) and a second vertical beam (4.1.3); the sliding trolley (4.2) is arranged on the second vertical beam (4.1.3); the winch (4.3) is arranged on the second cross beam (4.1.1).

3. The bridge fabrication machine according to claim 2, characterized in that a limiting component and a sliding component are further arranged on the second beam (4.1.1);

the limiting assemblies are provided with two groups which are respectively arranged at two ends along the displacement direction of the winch (4.3);

the sliding assembly comprises a sliding rail, a sliding block arranged on the sliding rail and a sliding plate arranged on the sliding block, the sliding rail is fixedly arranged on the second cross beam (4.1.1), the sliding block is connected with the sliding rail in a sliding mode, the sliding plate is fixedly connected with the sliding block, and a winch (4.3) is fixedly arranged on the sliding plate.

4. The bridge fabrication machine according to claim 1, wherein the driving assembly (1.3) comprises a bracket (1.3.1), a first driving member (1.3.2), a second driving member (1.3.3) and a bolt, the bracket (1.3.1) is installed on the outer main beam (1.1), a fixed end of the first driving member (1.3.2) is connected with the bracket (1.3.1) and a driving end thereof is connected with the inner main beam (1.2), a fixed end of the second driving member (1.3.3) is connected with the bracket (1.3.1) and a driving end thereof is installed with the bolt; interior girder (1.2) slides in outer girder (1.1) through the drive of first driving piece (1.3.2), and when the displacement to assigned position, second driving piece (1.3.3) drive bolt inserts in the pinhole that sets up on outer girder (1.1) to realize the relative spacing fixed between outer girder (1.1) and interior girder (1.2).

5. The bridge fabrication machine according to claim 1, wherein the first and second main legs are structurally identical and each comprises a fixed support assembly (2.1), a movable support assembly (2.2), a displacement drive assembly and a sliding assembly (2.3);

the fixed supporting component (2.1) and the movable supporting component (2.2) are mutually sleeved;

the displacement driving component drives the movable supporting component (2.2) to displace along the height direction relative to the fixed supporting component (2.1);

the sliding component (2.3) is arranged at one end of the movable supporting component (2.2) far away from the fixed supporting component (2.1), and the sliding component (2.3) is connected with the outer main beam (1.1) or the inner main beam (1.2) in a sliding mode.

6. The bridge fabrication machine according to claim 5, wherein the sliding assembly (2.3) comprises a base (2.3.1), a driving wheel drive (2.3.2), a driving wheel assembly (2.3.3) and a driven wheel assembly (2.3.4);

the base (2.3.1) is fixedly connected with the movable supporting component (2.2), and the base (2.3.1) comprises a first vertical section, a horizontal section and a second vertical section which are sequentially connected with one another;

the driving wheel assembly (2.3.3) is arranged on the first vertical section, and the driving wheel assembly (2.3.3) is connected with the driving wheel driving part (2.3.2);

follow driving wheel subassembly (2.3.4) and set up on the vertical section of second, form the slip structure of centre gripping on outer main beam (1.1) or interior main beam (1.2) through mutually supporting with action wheel subassembly (2.3.3).

7. The bridge fabrication machine according to any one of claims 1 to 6, further comprising a rear leg structure (3) provided on an end of the outer girder (1.1) remote from the inner girder (1.2); rear leg structure (3) include mount (3.1) and set up walking drive spare (3.2) and walking wheel assembly (3.3) on mount (3.1), mount (3.1) link to each other with the one end of interior girder (1.2) is kept away from in outer girder (1.1), walking wheel assembly (3.3) carry out the displacement on pier (02) through the drive of walking drive spare (3.2).

8. The bridge fabrication machine as claimed in claim 7, further comprising a walking pile module (5) for carrying and displacing the hole forming device on the foundation (01); the walking pile foundation module (5) comprises a pile base (5.1), a supporting arm component (5.2) and a hole forming device (5.3);

the pile base (5.1) comprises a base body and a displacement assembly arranged on the base body, and the displacement assembly drives the base body to displace on the foundation (01);

the supporting arm assembly (5.2) comprises a fixed arm and an adjusting arm which are hinged with each other, one end of the fixed arm, which is far away from the adjusting arm, is fixedly connected with the base body, one end of the adjusting arm, which is far away from the fixed arm, is fixedly connected with the pore-forming equipment (5.3), an adjusting assembly is further arranged between the fixed arm and the adjusting arm, and the adjusting arm is driven by the adjusting assembly to pitch and swing left and right;

the pore-forming device (5.3) is used for realizing drilling.

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