Bridge erecting machine with single-line and double-line bridging function and single-line and double-line bridging method

Abstract

The invention provides a bridge erecting machine with a single-line and double-line bridging function and a single-line and double-line bridging method. The bridge erecting machine with the single-line and double-line bridge erecting function comprises a machine arm, a first column, a second column and a third column, wherein the first column, the second column and the third column are arranged in the longitudinal direction of the machine arm and used for supporting the machine arm to move. The column II comprises two groups of first walking parts supported on a bridge floor, two groups of first double-line mounting parts and two groups of first single-line mounting parts positioned between the two groups of first double-line mounting parts; the third column comprises two sets of second walking parts used for being supported on the bridge floor, two sets of second double-line installation parts and two sets of second single-line installation parts located between the two sets of second double-line installation parts. When the bridge girder erection machine is switched from double-line box girder erection to single-line box girder erection, each group of first walking parts is switched from the first double-line mounting part to the first single-line mounting part, and each group of second walking parts is switched from the second double-line mounting part to the second single-line mounting part, so that the bridge girder erection machine can adapt to various types of box girders.

Description

Technical Field

[0001] The present application relates to the technical field of construction machinery and equipment, and in particular to a bridge-building machine with a single-line and double-line bridge-building function and a single-line and double-line bridge-building method. Background Art

[0002] The bridge erection machine is a common equipment for transporting beams and placing them on the preset bridge piers. The bridge erection machine includes a machine arm and multiple pillars supported under the main beam. After the multiple pillars are supported on the bridge head and the bridge piers downstream of the bridge head, the crane on the machine arm places the box beam on the bridge piers at the edge of the bridge head and the bridge piers downstream of the bridge head to complete the box beam erection operation.

[0003] With the increase of construction scale and the complexity of line terrain environment, in the construction of bridge erection by bridge erection machine, there will be the need to use both double-line prefabricated box girders and single-line prefabricated box girders. The weight and size of double-line prefabricated box girders are greater than those of single-line prefabricated box girders. When erecting double-line prefabricated box girders and single-line prefabricated box girders, the support position between the pillars of the bridge erection machine and the bridge deck needs to match the type of box girder to avoid the bridge erection machine from tipping over. The existing bridge erection machine can only adapt to one of the double-line prefabricated box girders and the single-line prefabricated box girders. When switching the type of box girder to be erected in actual construction, the corresponding bridge erection machine needs to be replaced. Taking the double-line prefabricated box girder as an example, the bridge erection machine adapted to the double-line prefabricated box girder needs to be withdrawn from the bridge head position first, and the bridge erection machine adapted to the single-line prefabricated box girder needs to be driven into the bridge head and erected on the bridge head and the bridge piers downstream of the bridge head before the subsequent single-line prefabricated box girder erection operation can be carried out. During bridge erection, the operation of switching the bridge erection machine to the appropriate box girder type is cumbersome and time-consuming, affecting construction efficiency. Summary of the invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present application provides a bridge-laying machine with a single-line and double-line bridge-laying function and a single-line and double-line bridge-laying method.

[0005] In a first aspect, the present application provides a bridge erecting machine with a single-line and double-line bridge erecting function, comprising a machine arm and a first column, a second column and a third column arranged in the longitudinal direction of the machine arm and used to support the movement of the machine arm;

[0006] The second column includes two groups of first running parts, two groups of first double-track mounting parts and two groups of first single-track mounting parts between the two groups of the first double-track mounting parts for supporting on the bridge deck; the third column includes two groups of second running parts, two groups of second double-track mounting parts and two groups of second single-track mounting parts between the two groups of the second double-track mounting parts for supporting on the bridge deck;

[0007] When the bridge-erecting machine switches from erecting a double-track box girder to erecting a single-track box girder, each group of the first running gear switches from the first double-track mounting part to the first single-track mounting part, and each group of the second running gear switches from the second double-track mounting part to the second single-track mounting part.

[0008] Optionally, the second column further comprises a first frame body, one end of which is connected to the machine arm, and the other end of which is provided with two groups of the first double-wire mounting parts and two groups of the first single-wire mounting parts;

[0009] And / or, the third column also includes a second frame body, one end of which is connected to the machine arm, and the other end of which is provided with two groups of the second double-wire mounting parts and two groups of the second single-wire mounting parts.

[0010] Optionally, the first frame body includes an upper crossbeam, a connecting beam and a lower crossbeam;

[0011] The upper crossbeam is slidably connected to the machine arm along the longitudinal direction of the machine arm, the lower crossbeam is arranged at the lower side of the upper crossbeam, and the connecting beam is connected between the upper crossbeam and the lower crossbeam;

[0012] The first double-wire installation portion and the first single-wire installation portion are arranged on the lower cross beam.

[0013] Optionally, each group of the first double-wire mounting parts includes two first double-wire seats, and the two first double-wire seats are symmetrically arranged on both sides of the lower cross beam along the longitudinal direction of the machine arm;

[0014] Each group of the first single-line mounting parts includes two first single-line seats, and the two first single-line seats are symmetrically arranged on both sides of the lower cross beam along the longitudinal direction of the machine arm;

[0015] Each group of the first running parts includes two first rollers, and the two first rollers can be correspondingly installed on two symmetrical first double-wire seats or correspondingly installed on two symmetrical first single-wire seats.

[0016] Optionally, the lower cross beam includes two sub-cross beams, the two sub-cross beams are spaced apart along the longitudinal direction of the machine arm, and the two sub-cross beams are connected to the connecting beam;

[0017] Each group of the first double-wire installation parts further includes two second double-wire seats, which are symmetrically arranged on one side of the two sub-beams facing each other, and each group of the first single-wire installation parts further includes two second single-wire seats, which are symmetrically arranged on one side of the two sub-beams facing each other;

[0018] Each group of the first running parts also includes a second roller, and the second roller can be installed between two symmetrical second double-wire seats or between two symmetrical second single-wire seats.

[0019] Optionally, each group of the second running parts includes a roller member, and the roller member is connected to the second double-line mounting part or the second single-line mounting part. The two roller members support the second frame body so that the second frame body moves relative to the bridge deck through the roller members.

[0020] Optionally, the second running gear further includes a synchronization rod assembly, a driving member and two steering structures;

[0021] The two steering structures are mounted on two roller members in a one-to-one correspondence, and the roller members can be rotatably connected to the second double-line mounting portion or the second single-line mounting portion through the steering structure. The driving member is arranged on the second frame body and connected to any one of the steering structures. The two steering structures are connected to each other through the synchronization rod assembly so that the driving member drives multiple steering structures to rotate in the same direction and at the same angle.

[0022] Optionally, when the roller member is installed on the second single-line installation portion, the synchronization rod assembly includes a first synchronization rod, and both ends of the first synchronization rod are rotatably connected to the steering structures on the two roller members;

[0023] When the roller member is installed on the second double-line installation portion, the synchronization rod assembly includes a second synchronization rod and third synchronization rods connected to both ends of the second synchronization rod, and each third synchronization rod is rotatably connected to the steering structure on one of the roller members.

[0024] Optionally, a rotating mechanism is provided on the second frame body, and the rotating mechanism is rotatably connected to the machine arm, and the rotating mechanism drives the second frame body to switch between a flipping position attached to the lower side of the machine arm and a working position perpendicular to the machine arm.

[0025] The second aspect of the present application provides a single-double-line bridge-laying method of a bridge-laying machine with a single-double-line bridge-laying function as described in any one of the above items, comprising:

[0026] Confirm the model of the box girder to be erected, and confirm the installation positions of the first running gear and the second running gear according to the model of the box girder;

[0027] When switching between erection of single-track box girder and double-track box girder, the first running unit is switched to the corresponding first double-track installation portion and first single-track installation portion, and the second running unit is switched to the corresponding second double-track installation portion and second single-track installation portion.

[0028] Compared with the prior art, the technical solution provided by this application has the following advantages:

[0029] The present application provides a bridge erecting machine with a single- and double-line bridge erecting function and a single- and double-line bridge erecting method. The bridge erecting machine with a single- and double-line bridge erecting function includes a machine arm and a first column, a second column, and a third column arranged along the longitudinal direction of the machine arm and used to support the movement of the machine arm; the second column includes two groups of first running parts, two groups of first double-line mounting parts, and two groups of first single-line mounting parts located between the two groups of first double-line mounting parts for supporting on the bridge deck; the third column includes two groups of second running parts, two groups of second double-line mounting parts, and two groups of second single-line mounting parts located between the two groups of second double-line mounting parts for supporting on the bridge deck; when the bridge erecting machine switches from erecting a double-line box girder to erecting a single-line box girder, each group of first running parts switches from the first double-line mounting part to the first single-line mounting part, and each group of second running parts switches from the second double-line mounting part to the second single-line mounting part. By switching the first running section between the first double-track installation section and the first single-track installation section, the No. 2 column can adapt to the working conditions of the double-track box girder and the single-track box girder; by switching the second running section between the second double-track installation section and the second single-track installation section, the No. 3 column can adapt to the working conditions of the single-track box girder and the double-track box girder. When the bridge erection machine switches between transporting the double-track box girder and transporting the single-track box girder, the bridge erection machine remains at the bridge head position, and the installation position of the first running section and the installation position of the second running section are switched accordingly, so that the No. 2 column and the No. 3 column can adapt to the double-track box girder and the single-track box girder; the bridge erection machine can erect different types of box girders without replacing the bridge erection machine at the bridge head, reducing the construction steps when switching the box girder type for erection during bridge erection, and improving the efficiency of the bridge erection machine. During construction, only one bridge erection machine is needed to meet the needs of erecting multiple box girders, avoiding the increase of construction costs by preparing multiple bridge erection machines, so that the bridge erection machine with single and double-track bridge erection functions can save construction costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present application and, together with the description, serve to explain the principles of the present application.

[0031] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0032] Figure 1 A side view of a bridge erecting machine with single- and double-line bridge erecting functions according to an embodiment of the present application;

[0033] Figure 2 This is a schematic diagram of the structure of the first column described in the embodiment of the present application;

[0034] Figure 3This is one of the structural schematic diagrams of the second column described in the embodiment of the present application;

[0035] Figure 4 This is the second structural schematic diagram of the second column described in the embodiment of the present application;

[0036] Figure 5 This is one of the structural schematic diagrams of the third column described in the embodiment of the present application;

[0037] Figure 6 This is the second structural diagram of the third column described in the embodiment of the present application;

[0038] Figure 7 It is a front view of the third column described in the embodiment of the present application;

[0039] Figure 8 A side view of the third column in the working position according to the embodiment of the present application;

[0040] Fig. 9 This is a side view of the third column in the flipped position described in the embodiment of the present application.

[0041] Among them, 1. machine arm; 2. No. 1 column; 21. sliding drive device; 211. sliding connecting seat; 212. sliding motor; 22. supporting frame; 3. No. 2 column; 31. first frame body; 311. upper beam; 312. connecting beam; 313. lower beam; 314. sub-beam; 32. first running part; 321. first roller; 322. second roller; 33. first double-line installation part; 34. first single-line installation part; 35. second double-line seat; 36. second single-line seat; 4. No. 3 column; 41. second frame body; 42. second running part; 43. second double-line installation part; 44. second single-line installation part; 451. synchronization rod assembly; 452. driving member; 453. steering structure; 46. rotating mechanism. DETAILED DESCRIPTION

[0042] In order to more clearly understand the above-mentioned purposes, features and advantages of the present application, the scheme of the present application will be further described below. It should be noted that the embodiments of the present application and the features in the embodiments can be combined with each other without conflict.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present application, but the present application may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present application, rather than all of the embodiments.

[0044] Reference Figures 1 to 9As shown, an embodiment of the present application provides a bridge-building machine with a single- and double-track bridge-building function, comprising an arm 1 and a No. 1 column 2, a No. 2 column 3 and a No. 3 column 4 arranged along the longitudinal direction of the arm 1 and used to support the movement of the arm 1; the No. 2 column 3 comprises two groups of first running parts 32, two groups of first double-track mounting parts 33 and two groups of first single-track mounting parts 34 located between the two groups of first double-track mounting parts 33 for supporting on the bridge deck; the No. 3 column 4 comprises two groups of second running parts 42, two groups of second double-track mounting parts 43 and two groups of second single-track mounting parts 44 located between the two groups of second double-track mounting parts 43 for supporting on the bridge deck; when the bridge-building machine switches from erecting a double-track box girder to erecting a single-track box girder, each group of first running parts 32 is switched from the first double-track mounting part 33 to the first single-track mounting part 34, and each group of second running parts 42 is switched from the second double-track mounting part 43 to the second single-track mounting part 44.

[0045] Specifically, when the bridge is erected, there are multiple piers arranged at intervals at the erection position, and box girders are erected on two adjacent piers to form a bridge structure. Multiple box girders are successively erected on two adjacent piers and connected to each other to finally complete the overall erection of the bridge, and the bridge head is on the downstream side of the arrangement direction of the multiple box girders when they are erected.

[0046] The pier at the edge of the bridge head is the first pier, and the adjacent pier downstream of the bridge head among multiple spaced piers is the second pier. After the bridge erection machine is erected between the first pier and the second pier, the box girder is transported between the two piers by the machine arm to complete the installation operation of the box girder.

[0047] The above-mentioned arm 1 is usually kept parallel to the bridge deck of the bridge head when in use, the extension direction of the arm 1 is the longitudinal direction of the arm 1, and the direction perpendicular to the extension direction of the arm 1 in the horizontal direction is the transverse direction of the arm 1. The first column 2, the second column 3 and the third column 4 can support the arm 1 on the bridge deck. The first column 2, the second column 3 and the third column 4 are arranged at intervals along the longitudinal direction of the arm 1, and the opposite ends of the arm 1 are respectively the front end and the rear end. The first column 2 can be selectively arranged on the front end of the arm 1, the third column 4 is arranged on the rear end of the arm 1, and the second column 3 is arranged in the middle position between the front end and the rear end of the arm 1.

[0048] The above-mentioned No. 2 column 3 can be selected as a rectangular frame structure. The No. 2 column 3 is arranged between the arm 1 and the bridge deck in the vertical direction. One end of the No. 2 column 3 close to the arm 1 is connected to the arm 1, and the other end is formed by a first double-line mounting portion 33 and a first single-line mounting portion 34. When the first running portion 32 is installed on the first double-line mounting portion 33 or the first single-line mounting portion 34, the first running portion 32 supports the frame structure of the No. 2 column 3 on the bridge deck, so that the No. 2 column 3 supports the arm 1 on the bridge deck.

[0049] The above-mentioned No. 3 column 4 can be selected as a rectangular frame structure. The No. 3 column 4 is arranged between the arm 1 and the bridge deck in the vertical direction. The two ends of the No. 3 column 4 close to the arm 1 are connected to the arm 1, and the other two ends are formed with a second double-line mounting portion 43 and a second single-line mounting portion 44. When the second running portion 42 is installed on the second double-line mounting portion 43 or the second single-line mounting portion 44, the second running portion 42 supports the frame structure of the No. 3 column 4 on the bridge deck, so that the No. 3 column 4 supports the arm 1 on the bridge deck.

[0050] The first double-line installation part 33 and the first single-line installation part 34 can be selected as a protruding structure on the frame structure of the second column 3, and a screw hole is provided on the protruding structure, so that the first running part 32 can be connected to the first double-line installation part 33 or the first single-line installation part 34 by bolts. Of course, the first double-line installation part 33 and the first single-line installation part 34 can also be selected as grooves on the frame structure of the second column 3, and a part of the first running part 32 can be inserted into the first double-line installation part 33 or the first single-line installation part 34, and then the first running part 32 is connected to the first frame body 31 by bolts.

[0051] The two first double-track installation parts 33 mentioned above can be selected to be symmetrical about the boom 1 in the transverse direction of the boom 1, and the two first single-track installation parts 34 can be selected to be symmetrical about the boom 1 in the transverse direction of the boom 1. The dimension of the double-track box girder in the transverse direction of the boom 1 is greater than the dimension of the single-track box girder in the transverse direction of the boom 1. When the boom 1 is transporting the single-track box girder and the double-track box girder, the supporting points of the second column 3 and the third column 4 and the bridge deck should correspond to the single-track box girder and the double-track box girder, that is, the supporting point of the second column 3 should be at the two side edges of the single-track box girder and the double-track box girder in the transverse direction of the boom 1, and the supporting point of the third column 4 should be at the two side edges of the single-track box girder and the double-track box girder in the transverse direction of the boom 1, so that the overall bridge erection machine remains stable when the double-track box girder and the single-track box girder are transported on the boom 1.

[0052] When the bridge-building machine needs to transport a single-line box girder, the two first running parts 32 are installed on the two first single-line mounting parts 34 in a one-to-one manner, so that the distance between the two first running parts 32 is closer to adapt to the single-line box girder. When the single-line box girder is on the boom 1, the two first running parts 32 can keep the second column 3 stable at the two side horizontal edges of the single-line box girder on the boom 1, so that the bridge-building machine can stably transport the single-line box girder.

[0053] When the first running section 32 is installed on the first single-track mounting section 34, if a double-track box girder is transported on the boom 1, the two side edges of the double-track box girder in the horizontal direction of the boom 1 will exceed the two first running sections 32, making it impossible for the boom 1 to stably transport the double-track box girder. Therefore, when the bridge erection machine needs to transport a double-track box girder, it is necessary to switch the two first running sections 32 to the two first double-track mounting sections 33, so that the two first running sections 32 are switched to the two first double-track mounting sections 33 one by one, thereby making the distance between the two first running sections 32 farther to adapt to the double-track box girder. When the double-track box girder is transported on the boom 1, the two first running sections 32 are located at the two side edges of the double-track box girder along the horizontal direction of the boom 1, so that the second column 3 can remain stable during the transportation of the double-track box girder.

[0054] The second double-line mounting portion 43 and the second single-line mounting portion 44 can be selected as a protruding structure on the frame structure of the third column 4, and a screw hole is provided on the protruding structure, so that the second running portion 42 can be connected to the second double-line mounting portion 43 or the second single-line mounting portion 44 by bolts. Of course, the second double-line mounting portion 43 and the second single-line mounting portion 44 can also be selected as grooves on the frame structure of the third column 4, and a part of the second running portion 42 can be inserted into the second double-line mounting portion 43 or the second single-line mounting portion 44, and then the second running portion 42 is connected to the second frame body 41 by bolts.

[0055] The two second double-line mounting portions 43 may be selected to be symmetrical with respect to the machine arm 1 in the transverse direction of the machine arm 1 , and the two second single-line mounting portions 44 may be selected to be symmetrical with respect to the machine arm 1 in the transverse direction of the machine arm 1 .

[0056] When the bridge-building machine needs to transport a single-line box girder, the two second running sections 42 are installed one by one on the two second single-line mounting sections 44, and the distance between the two second running sections 42 is relatively close to adapt to the single-line box girder. When the single-line box girder is on the boom 1, the two second running sections 42 can keep the third column 4 stable at the two side horizontal edges of the single-line box girder on the boom 1, so that the bridge-building machine can stably transport the single-line box girder.

[0057] When the second running gear 42 is installed on the second single-line mounting portion 44, if a double-track box girder is transported on the boom 1, the two side edges of the double-track box girder in the horizontal direction of the boom 1 will exceed the two second running gears 42, making it impossible for the boom 1 to stably transport the double-track box girder. Therefore, when the bridge erection machine needs to transport a double-track box girder, the two second running gears 42 are switched to the two second double-track mounting portions 43, so that the two second running gears 42 are installed one by one on the two second double-track mounting portions 43, so that the distance between the two second running gears 42 is farther to adapt to the double box girder. When the double-track box girder is transported on the boom 1, the two second running gears 42 are located at the two side edges of the double-track box girder along the horizontal direction of the boom 1, so that the third column 4 can remain stable during the transportation of the double-track box girder.

[0058] The above-mentioned first running section 32 and second running section 42 can be selected as a wheel structure, and of course the first running section 32 and second running section 42 can also be selected as a track structure, as long as the first running section 32 can be installed on the frame structure of the second column 3, and the second running section 42 can be installed on the frame structure of the third column 4, so that the first running section 32 and the second running section 42 can support the machine arm 1.

[0059] When the bridge-building machine with single- and double-line bridge-building functions provided in the present application is used, column No. 1 2 is erected on the pier downstream of the bridge head, and column No. 2 3 and column No. 3 4 are erected on the bridge deck of the bridge head. After determining the type of box girder that the bridge-building machine needs to transport, the box girder is transported to between the piers at the bridge head and the piers downstream of the bridge head through the machine arm 1, and the box girder is lowered onto the piers at the edge of the bridge head and the piers downstream of the bridge head to complete the erection of the box girder.

[0060] Among them, when it is necessary to erect a double-track box girder, the two first running sections 32 are installed on the two first double-track mounting sections 33, and the two second running sections 42 are installed on the two second double-track mounting sections 43. The double-track box girder is transported by the boom 1 to between the piers at the bridge head and the piers downstream of the bridge head, and the double-track box girder is lowered onto the piers at the edge of the bridge head and the piers downstream of the bridge head to complete the erection of the double-track piers.

[0061] When it is necessary to erect a single-track box girder, the two first running sections 32 are installed on the two first single-track mounting sections 34, and the two second running sections 42 are installed on the two second single-track mounting sections 44. The single-track box girder is transported by the boom 1 to between the piers at the bridge head and the piers downstream of the bridge head, and the single-track box girder is lowered onto the piers at the edge of the bridge head and the piers downstream of the bridge head to complete the erection of the single-track piers.

[0062] The bridge-erecting machine with single- and double-track bridge-erecting function provided in the present application comprises a machine arm 1 and a first column 2, a second column 3 and a third column 4 which are arranged along the longitudinal direction of the machine arm 1 and are used to support the movement of the machine arm 1; the second column 3 comprises two groups of first running parts 32, two groups of first double-track mounting parts 33 and two groups of first single-track mounting parts 34 located between the two groups of first double-track mounting parts 33 for supporting on the bridge deck; the third column 4 comprises two groups of second running parts 42, two groups of second double-track mounting parts 43 and two groups of second single-track mounting parts 44 located between the two groups of second double-track mounting parts 43 for supporting on the bridge deck; when the bridge-erecting machine switches from erecting a double-track box girder to erecting a single-track box girder, each group of first running parts 32 is switched from the first double-track mounting part 33 to the first single-track mounting part 34, and each group of second running parts 42 is switched from the second double-track mounting part 43 to the second single-track mounting part 44. By switching the first running section 32 between the first double-track installation section 33 and the first single-track installation section 34, the second column 3 can be adapted to the working conditions of the double-track box girder and the single-track box girder; by switching the second running section 42 between the second double-track installation section 43 and the second single-track installation section 44, the third column 4 can be adapted to the working conditions of the single-track box girder and the double-track box girder. When the bridge erecting machine switches between transporting the double-track box girder and transporting the single-track box girder, the bridge erecting machine remains at the bridge head position, and the installation position of the first running section 32 and the installation position of the second running section 42 are switched accordingly, so that the second column 3 and the third column 4 can be adapted to the double-track box girder and the single-track box girder; the bridge erecting machine can erect different types of box girders without replacing the bridge erecting machine at the bridge head, which reduces the construction steps when switching the box girder type for erection during bridge erection, and improves the efficiency of the bridge erection machine. During construction, only one bridge-building machine is needed to meet the needs of erecting various box girders, avoiding the increase of construction costs by preparing multiple bridge-building machines, and enabling the bridge-building machine with single- and double-line bridge-building functions to save construction costs.

[0063] Reference Figures 1 to 9 As shown, in some embodiments, the second column 3 also includes a first frame body 31, one end of the first frame body 31 is connected to the arm 1, and the other end is provided with two groups of first double-line mounting parts 33 and two groups of first single-line mounting parts 34. In this way, the first frame body 31 serves as the main structure of the second column 3 to support the arm 1, and the first running part 32 is installed on the first double-line mounting part 33 and the first single-line mounting part 34 at the bottom of the first frame body 31, so that the first running part 32 can support the first frame body 31 on the bridge deck. Through the support of the first running part 32, the first frame body 31 can carry the arm 1.

[0064] Specifically, the first frame body 31 can be selected as a frame structure extending in the vertical direction. One end of the first frame body 31 is connected to the arm 1, and the other end is provided with two groups of first double-line mounting parts 33 and two groups of first single-line mounting parts 34. After the first running part 32 is installed on the first double-line mounting part 33 or the first single-line mounting part 34, the two groups of first running parts 32 are at the bottom of the first frame body 31 to support the first frame body 31.

[0065] Reference Figures 1 to 9 As shown, in some embodiments, the third column 4 also includes a second frame body 41, one end of the second frame body 41 is connected to the arm 1, and the other end is provided with two sets of second double-line mounting parts 43 and two sets of second single-line mounting parts 44. In this way, the second frame body 41 serves as the main structure of the third column 4 to support the arm 1, and the second running part 42 is installed on the second double-line mounting part 43 and the second single-line mounting part 44 at the bottom of the second frame body 41, so that the second running part 42 can support the second frame body 41 on the bridge deck. Through the support of the second running part 42, the second frame body 41 can carry the arm 1.

[0066] The above-mentioned second frame body 41 can be selected as a frame structure extending in the vertical direction. The two ends of the second frame body 41 are connected to the arm 1, and the other end is provided with two groups of second double-line mounting parts 43 and two groups of second single-line mounting parts 44. After the second running part 42 is installed on the second double-line mounting part 43 or the second single-line mounting part 44, the two groups of second running parts 42 are at the bottom of the second frame body 41 to support the second frame body 41.

[0067] Reference Figure 1 and Figure 2 As shown, in some embodiments, the first frame body 31 includes an upper beam 311, a connecting beam 312 and a lower beam 313; the upper beam 311 is slidably connected to the arm 1 along the longitudinal direction of the arm 1, the lower beam 313 is arranged on the lower side of the upper beam 311, and the connecting beam 312 is connected between the upper beam 311 and the lower beam 313; the first double-line mounting portion 33 and the first single-line mounting portion 34 are arranged on the lower beam 313.

[0068] With such arrangement, the upper crossbeam 311 can slide relative to the arm 1, so that the No. 2 column 3 can slide as a whole relative to the arm. When the No. 2 column 3 is supported on the bridge deck, the relative sliding of the arm 1 and the No. 2 column 3 can move the arm 1 relative to the bridge deck. When the bridge-building machine is set on the bridge head and the piers downstream of the bridge head, the No. 2 column 3 can be supported on the bridge deck, and the arm 1 can slide relative to the No. 2 column 3 and extend out of the bridge head, which is convenient for the bridge-building machine to be set on the bridge head and the piers downstream of the bridge head.

[0069] The above-mentioned upper cross beam 311 and lower cross beam 313 can be selected as a beam structure extending along the transverse direction of the arm 1, and the connecting beam 312 is a beam structure arranged along the vertical direction. The two ends of the connecting beam 312 are respectively connected to the upper cross beam 311 and the lower cross beam 313, so that the upper cross beam 311, the connecting beam 312 and the lower cross beam 313 form a vertically arranged frame structure.

[0070] The above-mentioned upper crossbeam 311 is arranged along the transverse direction of the arm 1, and the second lower crossbeam 313 is arranged along the transverse direction of the arm 1. The number of connecting beams 312 can be selected to be two, and the two connecting beams 312 are respectively arranged at the two ends of the upper crossbeam 311 along the transverse direction of the arm 1, and the two connecting beams 312 are respectively connected to the two ends of the lower crossbeam 313 along the transverse direction of the arm 1, and the middle parts of the upper crossbeam 311 and the second lower crossbeam 313 are spaced apart, so that the upper crossbeam 311, the lower crossbeam 313 and the two connecting beams 312 form a working channel, and the arm 1 is penetrated in the working channel and is slidably connected with the upper crossbeam 311. When the bridge erecting machine transports the box girder, the box girder is suspended on the lower side of the arm 1 and moves along the arm 1, and the box girder can move from the rear end of the arm 1 to the front end of the arm 1 through the working channel.

[0071] When a working channel is formed on the first frame body 31, the upper crossbeam 311 is on the upper side of the arm 1, and a sliding seat can be optionally provided on the side of the upper crossbeam 311 facing the arm 1, and a through slot is provided on the sliding seat that passes through the sliding seat along the longitudinal direction of the arm 1, and the arm 1 is slidably connected with the through slot, so that the upper crossbeam 311 can slide relative to the arm 1 along the longitudinal direction of the arm 1. Of course, it is also possible to provide a sliding track on the side of the arm 1 facing the upper crossbeam 311, and the sliding track is provided along the longitudinal direction of the arm 1, and a sliding part that cooperates with the sliding track is provided on the upper crossbeam 311, and the sliding part is slidably connected with the sliding track.

[0072] Reference Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, each group of first double-line mounting parts 33 includes two first double-line seats, and the two first double-line seats are symmetrically arranged on both sides of the lower beam 313 along the longitudinal direction of the arm 1; each group of first single-line mounting parts 34 includes two first single-line seats, and the two first single-line seats are symmetrically arranged on both sides of the lower beam 313 along the longitudinal direction of the arm 1; each group of first running parts 32 includes two first rollers 321, and the two first rollers 321 can be correspondingly installed on two symmetrical first double-line seats or correspondingly installed on two symmetrical first single-line seats.

[0073] In this arrangement, the two first rollers 321 support the lower beam 313 on both sides of the lower beam 313, thereby improving the stability of the two first rollers 321 supporting the lower beam 313. The four first rollers 321 of the two groups of first running parts 32 support the first frame body 31 on both sides of the first frame body 31, thereby increasing the number of supporting points between the first frame body 31 and the bridge deck and improving the stability of the first frame body 31.

[0074] Specifically, the first double-line seat and the first single-line seat can be selected as a convex block structure convexly arranged on the lower cross beam 313, and a screw hole is provided on the convex block structure, so that the first roller 321 and the convex block structure are connected to each other by bolts. The two first double-line seats are respectively arranged on the two side surfaces of the lower cross beam 313 along the longitudinal direction of the machine arm, and the two first double-line seats are arranged oppositely along the longitudinal direction of the machine arm 1, that is, four first double-line seats are arranged on the lower cross beam 313, and the two first double-line seats form a double-line seat group, and the two double-line seat groups are arranged at intervals along the transverse direction of the machine arm 1.

[0075] The two first single-line seats are respectively arranged on the two side surfaces of the lower cross beam 313 along the longitudinal direction of the arm, and the two first single-line seats are arranged opposite to each other along the longitudinal direction of the arm 1, that is, four first single-line seats are arranged on the lower cross beam 313, the two first single-line seats form a single-line seat group, the two single-line seat groups are arranged at intervals along the transverse direction of the arm 1, and the two single-line seat groups are arranged between the two double-line seat groups.

[0076] The first roller 321 may optionally include a mounting block and a rolling wheel structure, wherein the wheel structure is rotatably connected to the mounting block, and the mounting block is connected to the first double-line seat or the first single-line seat. The two sets of first running parts 32 include four first rollers 321; when the bridge erecting machine transports a double-line box girder, the four first rollers 321 are arranged one-to-one on the four first double-line seats, so that the four first rollers 321 support the first frame body 31 on the bridge deck; when the bridge erecting machine transports a single-line box girder, the four first rollers 321 are arranged one-to-one on the four first single-line seats, so that the four first rollers 321 support the first frame body 31 on the bridge deck.

[0077] Reference Figure 1 , Figure 3 and Figure 4 As shown, in some embodiments, the lower cross beam 313 includes two sub-cross beams 314, the two sub-cross beams 314 are arranged at intervals along the longitudinal direction of the machine arm 1, and the two sub-cross beams 314 are connected to the connecting beam 312;

[0078] Each set of first double-wire installation parts 33 further includes two second double-wire seats 35, which are symmetrically arranged on the opposite side of the two sub-crossbeams 314, and each set of first single-wire installation parts 34 further includes two second single-wire seats 36, which are symmetrically arranged on the opposite side of the two sub-crossbeams 314;

[0079] Each set of first running parts 32 also includes a second roller 322, which can be installed between two symmetrical second double-line seats 35 or between two symmetrical second single-line seats 36. In this way, two second rollers 322 can be arranged between two sub-crossbeams 314, and the two second rollers 322 support the two sub-crossbeams 314 on the bridge deck, and the roller group formed by the two second rollers 322 and the four first rollers 321 supports the first frame body 31, thereby increasing the stability of the first frame body 31.

[0080] Specifically, the two sub-crossbeams 314 can be selected to be arranged along the horizontal direction of the arm 1, and the two ends of the two sub-crossbeams 314 along the horizontal direction of the arm are connected to each other, so that the space between the middle areas of the two sub-crossbeams 314 forms a cavity structure, and the cavity structure passes through the lower crossbeam 313 in the vertical direction. The two sub-crossbeams 314 are respectively provided with a second double-line seat 35 on the side surface close to each other in the longitudinal direction of the arm 1, and the two second double-line seats 35 are arranged opposite to each other in the longitudinal direction of the arm 1. A second roller 322 can be arranged between each two opposite second double-line seats 35, and the second roller 322 is connected to both second double-line seats 35.

[0081] The two sub-crossbeams 314 mentioned above are respectively provided with a second single-line seat 36 on one side surface which is close to each other in the longitudinal direction of the arm 1. The two second single-line seats 36 are arranged opposite to each other in the longitudinal direction of the arm 1. A second roller 322 can be arranged between each two opposite second single-line seats 36, and the second roller 322 is connected to both second single-line seats 36.

[0082] When the bridge-building machine transports a double-track box girder, each second roller 322 is connected to two opposite second double-track seats 35; when the bridge-building machine transports a single-track box girder, each second roller 322 is connected to two second single-track seats 36 of the box girder.

[0083] The above-mentioned second roller 322 includes a mounting block and a wheel body, the wheel body has a rotating shaft arranged horizontally along the arm 1, the wheel body is rotatably connected to the lower side of the mounting block, the mounting block is arranged between the two sub-beams 314 and is connected to two oppositely arranged second double-line seats 35 or two oppositely arranged second single-line seats 36, and the two groups of second double-line seats 35 are respectively connected to the two second rollers 322, so that the two second rollers 322 support the two sub-beams 314 on the bridge deck.

[0084] The above-mentioned second roller 322 and the two first rollers 321 form a roller group, and two roller groups are formed on the lower cross beam 313. When the two roller groups are at the positions of the two first double-track mounting parts 33, the second column 3 is adapted to the double-track box beam, and when the two roller groups are at the positions of the two first single-track mounting parts 34, the second column 3 is adapted to the single-track box beam.

[0085] Reference Figure 1, Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, each set of second running parts 42 includes a roller member, which is connected to the second double-line mounting part 43 or the second single-line mounting part 44, and the two roller members support the second frame body 41, so that the second frame body 41 can move relative to the bridge deck through the roller members. In this way, the rolling member supports the second frame body 41, and the rolling member can move the second frame body 41 relative to the bridge deck. The second frame body 41 moves relative to the bridge deck, so that the arm 1 moves together with the second frame body 41, thereby realizing the function of adjusting the position of the bridge erecting machine on the bridge deck.

[0086] Specifically, the roller member includes a rotatable wheel body, the rotation axis of the wheel body is arranged in the horizontal direction, and the roller member can be selectively connected to the second double-line mounting portion 43 or the second single-line mounting portion 44 by bolts. The roller member can roll to move the second frame body 41 on the bridge deck, and the movement of the second frame body 41 on the bridge deck can drive the machine arm 1 to move relative to the bridge deck, thereby adjusting the position of the entire bridge erecting machine on the bridge deck.

[0087] When the bridge-building machine transports a double-track box girder, the two rolling members are respectively installed on the two second double-track mounting portions 43 ; when the bridge-building machine transports a single-track box girder, the two rolling members are respectively installed on the two second single-track mounting portions 44 .

[0088] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, the second running part 42 further includes a synchronization rod assembly 451, a driving member 452 and two steering structures 453;

[0089] The two steering structures 453 are installed on the two roller parts in a one-to-one correspondence. The roller parts can be rotatably connected with the second double-line mounting part 43 or the second single-line mounting part 44 through the steering structure 453. The driving member 452 is arranged on the second frame body 41 and is connected to any steering structure 453. The two steering structures 453 are interconnected through the synchronization rod assembly 451, so that the driving member 452 drives multiple steering structures 453 to rotate in the same direction and at the same angle.

[0090] With such an arrangement, the synchronization rod assembly 451, the driving member 452 and the two steering structures 453 cooperate with each other to achieve synchronous change of the rolling direction of the two roller members, so as to change the moving direction of the third column 4 relative to the bridge deck, so that when the roller member rolls, the rear end of the arm 1 moves relative to the front end of the arm 1 in the transverse direction of the arm 1, so as to adjust the orientation of the arm 1 and facilitate adjustment of the position of the arm 1 on the bridge deck.

[0091] Specifically, the steering structure 453 can be selected as a flange, a vertically arranged rotating shaft is provided on the flange, the rotating shaft can rotate relative to the flange, the rotating shaft is fixedly connected to the roller member, the flange can be fixedly connected to the second double-line mounting portion 43 or the second single-line mounting portion 44, so that the roller member is rotatably arranged on the second frame body 41 through the steering structure 453. Of course, the steering structure 453 can also be selected as a rotating shaft member, the roller member is connected to the rotating shaft member, and the rotating shaft member can be rotatably connected to the second double-line mounting portion 43 or the second single-line mounting portion 44.

[0092] The driving member 452 can be selected as a hydraulic oil cylinder or a hydraulic cylinder, which has a telescopic end that can be extended and retracted, and is connected to the second frame body 41; when the steering structure 453 is a flange, a protrusion is provided on the outer circumference of the rotating shaft, and the telescopic end of the hydraulic oil cylinder or the hydraulic cylinder is rotatably connected to the protrusion on the outer circumference of the rotating shaft on the flange, and the telescopic direction of the telescopic end is on a plane extending in the horizontal direction, so that when the telescopic end is extended and retracted, it can drive the steering structure 453 to rotate relative to the second frame body 41. When the steering structure 453 is a rotating shaft member, the telescopic end is rotatably connected to the outer circumference of the rotating shaft member, so that when the telescopic end is extended and retracted, it can drive the steering structure 453 to rotate relative to the second frame body 41.

[0093] Of course, the driving member 452 can also be selected as a motor. When the steering structure 453 is a flange, a rack is provided on the outer peripheral surface of the rotating shaft of the flange, the motor is mounted on the second frame body 41, and a gear is provided at the output end of the motor. The gear at the output end of the motor meshes with the rack at the periphery of the steering structure 453. The output end of the motor rotates to drive the steering structure 453 to rotate through the cooperation of the gear and the rack. Of course, when the steering structure 453 is selected as a rotating shaft, a rack is provided on the outer peripheral surface of the rotating shaft, the motor is mounted on the second frame body 41, and a gear is provided at the output end of the motor. The gear at the output end of the motor meshes with the rack at the periphery of the steering structure 453. The output end of the motor rotates to drive the steering structure 453 to rotate through the cooperation of the gear and the rack.

[0094] The above-mentioned synchronization rod assembly 451 can be selected as a straight rod extending in the transverse direction of the machine arm 1. The synchronization rod assembly 451 is arranged on one side of the second frame body 41 along the longitudinal direction of the machine arm 1, so that the synchronization rod assembly 451 is located on the same side of the multiple steering structures 453, and the synchronization rod assembly 451 and the multiple steering structures 453 are at the same distance in the longitudinal direction of the machine arm 1. After the multiple steering structures 453 are rotatably connected to the synchronization rod assembly 451, when one steering structure 453 rotates, it drives the synchronization rod assembly 451 to move, and the movement of the synchronization rod assembly 451 drives the other steering structures 453 to rotate, so that the distance moved by the synchronization rod assembly 451 relative to each steering structure 453 is the same, so the multiple steering structures 453 can rotate in the same direction and at the same angle.

[0095] A plurality of through holes may be selectively provided on the above-mentioned synchronization rod assembly 451, and a protrusion is provided on the steering structure 453, which is rotationally connected to the through hole via a bolt or a pin structure, and the protrusions of the plurality of steering structures 453 are rotationally connected to the plurality of through holes in a one-to-one correspondence, and the plurality of steering structures 453 are rotationally connected to the synchronization rod assembly 451 at the same time, so that when the synchronization rod assembly 451 moves in the transverse direction and the longitudinal direction of the arm 1, the synchronization rod assembly 451 can drive the plurality of steering structures 453 to rotate in the same direction and at the same angle.

[0096] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, when the roller member is installed on the second single-line installation portion 44, the synchronization rod assembly 451 includes a first synchronization rod, and both ends of the first synchronization rod are rotatably connected to the steering structures 453 on the two roller members; when the roller member is installed on the second double-line installation portion 43, the synchronization rod assembly 451 includes a second synchronization rod and a third synchronization rod connected to both ends of the second synchronization rod, and each third synchronization rod is rotatably connected to the steering structure 453 on a roller member. In this way, when the installation position of the roller member on the second frame body 41 is switched, a rod body of a suitable size is selected in the synchronization rod assembly 451, so that the synchronization rod assembly 451 can be adapted to the working condition of the bridge erection machine transporting double-line box girders or single-line box girders, thereby improving the adaptability of the synchronization rod assembly 451.

[0097] Specifically, the first synchronization rod extends laterally along the arm 1, and the length of the first synchronization rod can be selected to be equal to the distance between the two second single-line mounting portions 44, so that both ends of the first synchronization rod can be rotatably connected to the steering structures 453 on the two second single-line mounting portions 44 respectively.

[0098] The second synchronization rod and the third synchronization rod both extend in the transverse direction of the arm 1, the length of the second synchronization rod is less than the distance between the two second double-line mounting parts 43, and the length of the third synchronization rod is less than the distance between the two second double-line mounting parts 43; after the two third synchronization rods are installed at both ends of the second synchronization rod, the sum of the length dimensions of the second synchronization rod and the two third synchronization rods is equal to the distance between the two second double-line mounting parts 43, so that the two third synchronization rods can be rotatably connected to the steering structures 453 on the two second double-line mounting parts 43 respectively.

[0099] Reference Figure 1 , Figure 5 , Figure 6 and Figure 7As shown, in some embodiments, a rotating mechanism 46 is provided on the second frame body 41, and the rotating mechanism 46 is rotatably connected to the arm 1, and the rotating mechanism 46 drives the second frame body 41 to switch between a flipping position close to the lower side of the arm 1 and a working position perpendicular to the arm 1. In this way, the second frame body 41 supports the arm 1 when it is in the working position, and the second frame body 41 is spaced from the bridge deck when it is in the flipping position, and a transport space for a transport vehicle to enter is formed between the third column 4 and the bridge deck, and a transport vehicle carrying a box girder can enter the transport space to facilitate the hoisting of the box girder on the arm 1, thereby improving the convenience of hoisting the box girder on the arm 1.

[0100] Specifically, the rotating mechanism 46 can be selected to include a hydraulically driven cylinder, the cylinder having a telescopic end, and the telescopic end can extend and retract the cylinder in one direction under the hydraulic drive in the cylinder. The cylinder of the rotating mechanism 46 is rotatably connected to the arm 1 by a hinge or bolt connection, and the telescopic end is rotatably connected to the No. 3 column 4 by a hinge or bolt connection. The telescopic end is arranged along the longitudinal direction of the arm 1, so that when the telescopic end is extended and retracted relative to the cylinder, it pushes the No. 3 column 4 to rotate between the working position and the flipping position; of course, the rotating mechanism 46 can also be selected as a motor, the motor is arranged on the No. 3 column 4, the No. 3 column 4 is rotatably connected to the arm 1 through a rotating shaft, and the output end of the motor is connected to the rotating shaft, so that the output end of the motor can rotate to drive the No. 3 column 4 to rotate relative to the arm 1.

[0101] The side of the boom 1 facing the bridge deck in the vertical direction is the lower side of the boom 1, and the third column 4 is arranged on the lower side of the boom 1. The rotation axis of the third column 4 relative to the boom 1 can be selected to be in the same direction as the horizontal direction of the boom 1, so that when the third column 4 is perpendicular to the boom 1, the third column 4 can support the boom 1, and the third column 4 is in the working position at this time; the third column 4 rotates along the longitudinal direction of the boom 1 to a position consistent with the longitudinal direction of the boom 1, so that the third column 4 fits the lower side of the boom 1, and the third column 4 is in the flipping position. When the third column 4 is in the flipping position, the boom 1 is supported on the bridge deck and the bridge pier by the first column 2 and the second column 3, and a transport space is formed between the third column 4 and the bridge deck for a common transport vehicle to enter. The transport vehicle transports the box girder to be erected to the transport space and then hoists it on the boom 1.

[0102] Reference Figure 1 and Figure 2As shown, in some embodiments, the first column 2 includes a sliding drive device 21 and a support frame, the sliding drive device 21 is installed on the support frame 22, the support frame 22 is slidably connected with the machine arm 1 through the sliding drive device 21, and the sliding drive device 21 drives the support frame 22 to slide relative to the machine arm 1 along the longitudinal direction of the machine arm 1. With such a configuration, the sliding drive device 21 can adjust the position of the first column 2 on the machine arm 1. When the bridge erection machine is set on the bridge head and the bridge pier downstream of the bridge head, the first column 2 needs to be supported on the bridge pier downstream of the bridge head with the random arm 1 extending out of the bridge head. The first column 2 can adjust its position relative to the machine arm 1, so that the first column 2 is convenient to align with the bridge pier downstream of the bridge head, and the operation convenience of the bridge erection machine when it is set on the bridge head and the bridge pier downstream of the bridge head is improved.

[0103] Specifically, the support frame 22 can be selected as a frame structure arranged in the vertical direction. The support frame 22 is arranged on the lower side of the arm 1. The end of the support frame 22 close to the arm 1 is the top of the support frame 22. The arm 1 can be optionally provided with a track arranged along the longitudinal direction of the arm 1. A sliding drive device 21 is arranged at the top of the support frame 22. The sliding drive device 21 is slidably connected to the track. The sliding drive device 21 can be selected to include a main body and a motor. The main body is slidably connected to the track. A gear is arranged on the output end of the motor, and a rack is arranged on the track. After the motor is started, the No. 1 column 2 is driven to move relative to the arm 1 through the cooperation of the gear and the rack.

[0104] Of course, you can also choose to have the sliding drive device 21 include a main body and a telescopic cylinder. The main body is slidably connected to the track, the telescopic cylinder is connected to the main body, the telescopic end of the telescopic cylinder is arranged along the longitudinal direction of the arm 1, and the telescopic end of the telescopic cylinder is connected to the arm 1. The extension and contraction of the telescopic cylinder can drive the main body to slide, and the longitudinal sliding of the main body along the arm 1 can drive the support frame 22 to slide along the arm 1.

[0105] Reference Figure 1 and Figure 2 As shown, in some embodiments, the sliding drive device 21 includes a sliding connection seat 211 and a sliding motor 212. One side of the sliding connection seat 211 is slidingly connected to the arm 1, and the other side is fixedly connected to the top of the support frame 22. The sliding motor 212 is arranged on the sliding connection seat 211. The arm 1 is provided with a rack extending along the longitudinal direction of the arm 1. The output end of the sliding motor 212 is meshed and connected with the rack. The output end of the sliding motor 212 rotates to drive the support frame 22 to slide relative to the arm 1.

[0106] With such an arrangement, the sliding connection seat 211 can be driven to drive the No. 1 column 2 to slide relative to the arm 1 through the rotation of the output end of the sliding motor 212 and the cooperation with the rack. The position of the No. 1 column 2 on the arm 1 can be controlled by controlling the sliding motor 212, thereby improving the convenience of adjusting the position of the No. 1 column 2 on the arm 1.

[0107] Specifically, the sliding connection seat 211 can be selected as a block structure, the block structure is provided with a through groove, the lower side of the arm 1 is slidably connected to the through groove, the sliding motor 212 can be selected as a motor, the arm 1 is provided with a rack extending along the longitudinal direction of the arm 1, the rack can be optionally set on one side of the arm 1 in the horizontal direction, and the output end of the sliding motor 212 is provided with a gear, the gear is meshed with the rack, and the axial direction of the output end is set along the transverse direction of the arm 1. The output end can rotate to drive the sliding connection seat 211 to slide relative to the arm 1 through the gear and the rack.

[0108] Of course, you can also choose to set the rack on the side surface of the arm 1 facing the through slot, the bottom of the through slot and the lower side of the arm 1 are spaced apart, the slot wall of the through slot is slidably connected to the side of the arm 1 in the horizontal direction, and the sliding motor 212 is set on the bottom of the through slot, so that the output end of the sliding motor 212 can be meshed and connected with the rack.

[0109] A second aspect of the present application provides a single- and double-track bridge-laying method for a bridge-laying machine with a single- and double-track bridge-laying function as described in any of the above embodiments, comprising: confirming the model of the box girder to be erected, and confirming the installation positions of the first running section 32 and the second running section 42 according to the model of the box girder; when switching between the erection of the single-track box girder and the double-track box girder, switching the first running section 32 to the corresponding first double-track installation section 33 and the first single-track installation section 34, and switching the second running section 42 to the corresponding second double-track installation section 43 and the second single-track installation section 44.

[0110] The first running section 32 is installed at the corresponding position of the first frame body 31, and the second running section 42 is installed at the corresponding position of the second frame body 41. Then, the second frame body 41 is driven to move relative to the bridge deck through the first roller 321 and the second roller 322, and the second frame body 41 is driven to move relative to the bridge deck through the roller member, so that the front end of the arm 1 extends out of the bridge head; the No. 1 column 2 is driven to slide along the arm 1 through the sliding connecting seat 211 and the sliding motor 212, so that the No. 1 column 2 is arranged opposite to the pier downstream of the bridge head and the No. 1 column 2 is supported on the pier downstream of the bridge head.

[0111] The rotating mechanism 46 rotates the No. 3 column 4 to the flipping position, and the transport vehicle loaded with the double-track box girder or the single-track box girder enters the transport space between the No. 3 column 4 and the bridge deck, and the double-track box girder or the single-track box girder on the transport vehicle is hoisted on the arm 1, so that the double-track box girder or the single-track box girder is located between the No. 3 column 4 and the No. 2 column 3, and then the transport vehicle is driven out of the transport space.

[0112] The rotating mechanism 46 drives the third column 4 to rotate to the working position, and the double-track box girder or single-track box girder hoisted on the arm 1 slides along the arm 1 toward the front end of the arm 1, and the double-track box girder or single-track box girder passes through the working channel of the second column 3 and moves between the first column 2 and the second column 3, so as to be on the first pier at the edge of the bridge head and the second pier downstream of the bridge head.

[0113] The double-track box girder or single-track box girder is lowered so that it is placed on the first pier at the edge of the bridge head and the second pier downstream of the bridge head, thereby completing the erection operation of the double-track box girder or single-track box girder.

[0114] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0115] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A bridge erecting machine with single- and double-line bridge erecting function, characterized in that: It comprises an arm (1) and a first column (2), a second column (3) and a third column (4) which are arranged along the longitudinal direction of the arm (1) and are used to support the movement of the arm (1); The second column (3) comprises two groups of first running parts (32) for supporting on the bridge deck, two groups of first double-track mounting parts (33), and two groups of first single-track mounting parts (34) located between the two groups of the first double-track mounting parts (33); the third column (4) comprises two groups of second running parts (42) for supporting on the bridge deck, two groups of second double-track mounting parts (43), and two groups of second single-track mounting parts (44) located between the two groups of the second double-track mounting parts (43); When the bridge erection machine switches from erecting a double-line box girder to erecting a single-line box girder, each group of the first running gear (32) is switched from the first double-line mounting part (33) to the first single-line mounting part (34), and each group of the second running gear (42) is switched from the second double-line mounting part (43) to the second single-line mounting part (44).

2. The bridge erecting machine with single- and double-line bridge erecting function according to claim 1, characterized in that: The second column (3) further comprises a first frame body (31), one end of the first frame body (31) is connected to the machine arm (1), and the other end is provided with two groups of the first double-line mounting parts (33) and two groups of the first single-line mounting parts (34); And / or, the third column (4) further comprises a second frame body (41), one end of the second frame body (41) is connected to the machine arm (1), and the other end is provided with two groups of the second double-line mounting parts (43) and two groups of the second single-line mounting parts (44).

3. The bridge erecting machine with single- and double-line bridge erecting function according to claim 2, characterized in that: The first frame body (31) comprises an upper crossbeam (311), a connecting beam (312) and a lower crossbeam (313); The upper crossbeam (311) is slidably connected to the machine arm (1) along the longitudinal direction of the machine arm (1); the lower crossbeam (313) is arranged on the lower side of the upper crossbeam (311); and the connecting beam (312) is connected between the upper crossbeam (311) and the lower crossbeam (313); The first double-wire mounting portion (33) and the first single-wire mounting portion (34) are arranged on the lower cross beam (313).

4. The bridge erecting machine with single- and double-line bridge erecting function according to claim 3, characterized in that: Each group of the first double-wire mounting parts (33) comprises two first double-wire seats, and the two first double-wire seats are symmetrically arranged on both sides of the lower cross beam (313) along the longitudinal direction of the machine arm (1); Each group of the first single-wire mounting parts (34) comprises two first single-wire seats, and the two first single-wire seats are symmetrically arranged on both sides of the lower cross beam (313) along the longitudinal direction of the machine arm (1); Each group of the first running parts (32) comprises two first rollers (321), and the two first rollers (321) can be correspondingly installed on two symmetrical first double-wire seats or correspondingly installed on two symmetrical first single-wire seats.

5. The bridge erecting machine with single- and double-line bridge erecting function according to claim 4, characterized in that: The lower cross beam (313) comprises two sub-cross beams (314), the two sub-cross beams (314) are arranged at intervals along the longitudinal direction of the machine arm (1), and the two sub-cross beams (314) are both connected to the connecting beam (312); Each group of the first double-wire installation parts (33) further comprises two second double-wire seats (35), the two second double-wire seats (35) being symmetrically arranged on one side of the two sub-crossbeams (314) facing each other, and each group of the first single-wire installation parts (34) further comprises two second single-wire seats (36), the two second single-wire seats (36) being symmetrically arranged on one side of the two sub-crossbeams (314) facing each other; Each group of the first running parts (32) further comprises a second roller (322), and the second roller (322) can be installed between two symmetrical second double-wire seats (35) or between two symmetrical second single-wire seats (36).

6. The bridge erecting machine with single- and double-line bridge erecting function according to claim 2, characterized in that: Each group of the second running parts (42) includes a roller member, and the roller member is connected to the second double-line mounting part (43) or the second single-line mounting part (44). The two roller members support the second frame body (41) so that the second frame body (41) can move relative to the bridge deck through the roller members.

7. The bridge erecting machine with single- and double-line bridge erecting function according to claim 6, characterized in that: The second running part (42) further comprises a synchronization rod assembly (451), a driving member (452) and two steering structures (453); The two steering structures (453) are mounted on two roller members in a one-to-one correspondence, and the roller members can be rotatably connected to the second double-line mounting portion (43) or the second single-line mounting portion (44) through the steering structures (453). The driving member (452) is arranged on the second frame body (41) and is connected to any one of the steering structures (453). The two steering structures (453) are connected to each other through the synchronization rod assembly (451), so that the driving member (452) drives the multiple steering structures (453) to rotate in the same direction and at the same angle.

8. The bridge erecting machine with single- and double-line bridge erecting function according to claim 7, characterized in that: When the roller member is installed on the second single-line installation portion (44), the synchronization rod assembly (451) includes a first synchronization rod, and both ends of the first synchronization rod are rotatably connected to the steering structures (453) on the two roller members; When the roller member is installed on the second double-line installation portion (43), the synchronization rod assembly includes a second synchronization rod and third synchronization rods connected to both ends of the second synchronization rod, and each third synchronization rod is rotatably connected to the steering structure (453) on one of the roller members.

9. The bridge erecting machine with single- and double-line bridge erecting function according to claim 2, characterized in that: The second frame body (41) is provided with a rotating mechanism (46), the rotating mechanism (46) is rotatably connected to the machine arm (1), and the rotating mechanism (46) drives the second frame body (41) to switch between a flipping position in contact with the lower side of the machine arm (1) and a working position perpendicular to the machine arm (1).

10. A single-wire and double-wire bridge-laying method of a bridge-laying machine with single-wire and double-wire bridge-laying function as claimed in any one of claims 1 to 9, characterized in that: include: Confirming the model of the box girder to be erected, and confirming the installation positions of the first running section (32) and the second running section (42) according to the model of the box girder; When switching between erection of a single-track box girder and a double-track box girder, the first running section (32) is switched to the corresponding first double-track mounting section (33) and the first single-track mounting section (34), and the second running section (42) is switched to the corresponding second double-track mounting section (43) and the second single-track mounting section (44).

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