Bridge girder erection machine and via hole girder erection method of bridge girder erection machine

Abstract

The invention provides a bridge girder erection machine and a via hole girder erection method of the bridge girder erection machine. The bridge girder erection machine comprises a machine arm, a first column, a second column and a third column. One end of the first column is connected with the front end of the vehicle arm, and the first column can stretch out and draw back relative to the vehicle arm. One end of the second column is provided with a moving device in sliding connection with the middle of the arm, the second column is rotationally connected with the moving device, and the other end of the second column is provided with a first walking mechanism; one end of the third column is rotationally connected with the rear end of the machine arm, the other end of the third column is provided with a second walking mechanism, the third column rotates relative to the machine arm so that the bridge erecting machine can be switched between the first working state and the second working state, and the third column is configured to be capable of driving the rear end of the machine arm to transversely move along the machine arm relative to the third column; in the first working state, the third column is perpendicular to the vehicle arm, and in the second working state, the third column is attached to the lower side of the vehicle arm. The first working state and the second working state of the bridge erecting machine can be suitable for erecting operation of bridges with various bending degrees.

Description

Technical Field

[0001] The present disclosure relates to the technical field of construction machinery and equipment, and in particular to a bridge erection machine and a through-hole beam erection method of the bridge erection machine. Background Art

[0002] A bridge-erecting machine is a commonly used equipment for transporting beam pieces and placing them on preset bridge piers. The bridge-erecting machine includes a main beam and a plurality of pillars slidably arranged on the main beam. Before transporting the beam pieces for the bridge-erecting operation, it is necessary to make at least two pillars on the main beam support the bridge deck at the bridge head and the adjacent bridge piers downstream of the bridge head respectively, so that part of the main beam extends out of the bridge head and is erected between the bridge head and the adjacent bridge piers downstream of the bridge head to complete the through-hole operation of the bridge-erecting machine. When the bridge-erecting machine is performing through-hole erection on a curved bridge, the multiple piers of the curved bridge are arranged at intervals along the curve. It is necessary to adjust the position of the main beam of the part of the bridge-erecting machine that extends out of the bridge head so that the direction of the main beam after the bridge-erecting machine completes the erection is set along the centerline direction of the bridge to be erected.

[0003] The existing bridge erection machine usually sets moving wheels on multiple pillars of the main beam. When moving in a straight line on the bridge deck, the moving wheels on multiple pillars drive the main beam to move together; a transverse mechanism is set on the pillar at the rear end of the main beam, and the moving wheels on the pillar drive the main beam to move, and the rear end of the main beam is transversely moved by the transverse mechanism, thereby adjusting the position of the front end of the main beam; when the curvature of the bridge to be erected is large, the distance required for the main beam to adjust its position is large, and the moving speed of the main beam relative to the bridge deck has a greater impact on the erection efficiency of the bridge erection machine; when the curvature of the bridge is small, the accuracy of the position of the main beam when moving relative to the bridge deck has a greater impact on the erection efficiency of the bridge erection machine; the pillar at the rear end of the main beam can drive the main beam to rotate faster relative to the bridge deck, but the accuracy is low, making it difficult for the bridge erection machine to adapt to the construction of bridges with a smaller curvature, affecting the scope of application of the bridge erection machine. In addition, although the moving wheels on the pillars can make the pillars move on the bridge deck, after the bridge erection machine is erected, the moving wheels on the pillars are likely to reduce the stability of the bridge erection machine. Summary of the invention

[0004] In order to solve the above technical problems or at least partially solve the above technical problems, the present disclosure provides a bridge erecting machine and a through-hole beam erecting method of the bridge erecting machine.

[0005] The present disclosure provides a bridge erecting machine, comprising a machine arm, a first column, a second column and a third column;

[0006] One end of the first column is connected to the front end of the machine arm, and the first column can be telescopic relative to the machine arm;

[0007] One end of the second column is provided with a moving device slidably connected to the middle part of the arm, and the second column is rotatably connected to the moving device, and the other end is provided with a first running mechanism;

[0008] One end of the third column is rotatably connected to the rear end of the machine arm, and the other end is provided with a second traveling mechanism. The third column rotates relative to the machine arm so that the bridge erecting machine switches between a first working state and a second working state, and the third column is configured to be able to drive the rear end of the machine arm to move relative to the third column along the lateral direction of the machine arm;

[0009] In the first working state, the third column is perpendicular to the arm, and the arm moves relative to the bridge deck through the second column and the third column. In the second working state, the third column is attached to the lower side of the arm, and the arm moves relative to the bridge deck through the second column.

[0010] Optionally, the first column includes a first top beam, a first bottom cross beam assembly and a first telescopic cylinder;

[0011] The first top beam is installed on the machine arm, the first bottom cross beam assembly is slidably connected to the first top beam, the first telescopic cylinder is arranged between the first top beam and the first bottom cross beam assembly, and the two ends of the first telescopic cylinder are respectively connected to the first top beam and the first bottom cross beam assembly to drive the first bottom cross beam assembly to move closer to or away from the first top beam.

[0012] Optionally, the first column is provided with a longitudinal movement mounting member and a longitudinal driving member, the longitudinal movement mounting member is slidably connected to the machine arm and is connected to the first column, the longitudinal driving member is mounted on the longitudinal movement mounting member, and the longitudinal driving member is transmission-connected to the machine arm, so that the longitudinal movement mounting member drives the first column to slide relative to the machine arm along the longitudinal direction of the machine arm under the drive of the longitudinal driving member.

[0013] Optionally, the second column includes a second top beam, a second bottom cross beam assembly and a second lifting cylinder;

[0014] The second top beam is arranged on the upper side of the machine arm, and the moving device is installed on the lower side of the second top beam;

[0015] The moving device is rotatably connected to the second top beam and connected to the machine arm, the second bottom cross beam assembly is arranged on the lower side of the machine arm, and the second bottom cross beam assembly is movably connected to the second top beam;

[0016] The second lifting cylinder is connected between the second top beam and the second bottom cross beam assembly, so that the second lifting cylinder drives the second bottom cross beam assembly and the second top beam to move closer to or farther from each other;

[0017] A working channel for the beam sheet and the machine arm to pass through is formed between the second top beam and the second bottom cross beam assembly.

[0018] Optionally, the second top beam includes a top beam body and a load-sharing beam, and the moving device includes a device body, a moving drive unit, a hanging seat, and a first lateral driving device;

[0019] The two ends of the top beam body extend to the two sides of the machine arm along the transverse direction of the machine arm respectively;

[0020] The load-sharing beam is slidably connected to the top beam body, the first transverse driving device is arranged between the load-sharing beam and the top beam body, and two ends of the first transverse driving device are respectively connected to the load-sharing beam and the top beam body, so that the load-sharing beam slides relative to the top beam body along the extension direction of the top beam body under the drive of the first transverse driving device;

[0021] The device body is slidably connected to the machine arm, the mobile driving unit is connected to the device body, and the mobile driving unit is transmission-connected to the machine arm, so that the mobile driving unit drives the device body to move relative to the machine arm along the longitudinal direction of the machine arm;

[0022] The hanging seat is connected to the upper side of the device body and is rotatably connected to the load-sharing beam.

[0023] Optionally, the third column includes a frame body, a lateral moving portion, a rotation driving member and a second lateral driving device;

[0024] One end of the frame body is rotatably connected to the machine arm, and the other end is slidably connected to the lateral moving part;

[0025] The rotation driving member is connected between the frame body and the machine arm, and the rotation driving member drives the frame body to rotate relative to the machine arm;

[0026] The second lateral driving device is connected between the frame body and the lateral moving part to drive the frame body to move laterally along the machine arm relative to the lateral moving part;

[0027] The second running mechanism is connected to a side of the transverse moving portion away from the frame body.

[0028] Optionally, the frame body includes a third top beam, a third bottom cross beam assembly and a third lifting cylinder;

[0029] The third top beam is rotatably connected to the machine arm, and the rotation driving member is installed between the machine arm and the third top beam;

[0030] The third bottom cross beam assembly is movably connected to the third top beam, and the third lifting cylinder is connected between the third top beam and the third bottom cross beam assembly to drive the third bottom cross beam assembly to approach or move away from the third top beam;

[0031] The transverse moving part is slidably connected to a side of the third bottom beam assembly away from the third top beam, and the second transverse driving device is connected between the third bottom beam assembly and the transverse moving part to drive the third bottom beam assembly to move laterally relative to the transverse moving part along the arm.

[0032] Optionally, the first running mechanism includes a first running wheel set, a suspension system and outriggers;

[0033] The first running wheel set is arranged at the lower side of the second column and is movably connected to the second column through the suspension system, so that the first running wheel set can switch between a supporting position supported on the bridge deck and a retracted position retracted on the second column;

[0034] When the first running wheel group is in the retracted position, the legs are supported on the bridge deck, and when the first running wheel group is in the supporting position, the legs are spaced apart from the bridge deck;

[0035] And / or, the second running mechanism includes a second running wheel group and a motor, the second running wheel group and the motor are connected to the third column, and the output end of the motor is connected to the second running wheel group, so that the motor drives the second running wheel group to roll.

[0036] Optionally, a beam lifting moving vehicle for lifting beam pieces is movably provided on the machine arm, and the beam lifting moving vehicle can move relative to the machine arm along the longitudinal direction of the machine arm.

[0037] The present disclosure also provides a through-hole beam erection method of a bridge erection machine, comprising a through-hole step, wherein the through-hole step comprises:

[0038] The bridge erecting machine is placed on the bridge deck and is in a first working state, the second column and the third column support the machine arm on the center line of the bridge deck at the bridge head, and the first running mechanism and the second running mechanism drive the machine arm to move along the center line of the bridge deck on the bridge deck to a position where the first column is opposite to the first pier at the edge of the bridge head;

[0039] The first column is supported at the central position of the first pier at the edge of the bridge head, the second column is supported on the center line of the bridge deck, when the bridge erection machine is in the first working state, the third column is supported on the bridge deck, and when the bridge erection machine is in the second working state, the third column is attached to the machine arm and is spaced from the bridge deck;

[0040] The first column is controlled to be in a retracted state. When the bridge erecting machine is in a first working state, the first running mechanism and the second running mechanism synchronously drive the machine arm and the first column to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in a second working state, the first running mechanism drives the machine arm and the first column to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column is supported at the edge center line position of the bridge deck;

[0041] When the bridge erection machine is in the first working state, the third column drives the rear end of the machine arm to move relative to the bridge deck along the lateral direction of the machine arm, so that the machine arm and the first column rotate relative to the second column to the central position of the second bridge pier. When the bridge erection machine is in the second working state, the moving device drives the machine arm and the first column to rotate relative to the second column to the central position of the second bridge pier.

[0042] The first column is lifted up and supported on the second pier to complete the through-hole operation.

[0043] Optionally, the arm is also movably connected to a beam moving vehicle, and when the first column is controlled to be in a retracted state, when the bridge erecting machine is in the first working state, the first running mechanism and the second running mechanism synchronously drive the arm and the first column to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in the second working state, the first running mechanism drives the arm and the first column to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column is supported at the edge center line position of the bridge deck, and the device further includes:

[0044] The beam moving vehicle is driven to move to a position where the rear end of the arm is close to the third column.

[0045] Optionally, when the bridge erecting machine is in the first working state, the third column is controlled to rotate relative to the machine arm to a flipping state close to the lower side of the machine arm, and the transport vehicle is driven to transport the beam piece between the second column and the third column. When the bridge erecting machine is in the second working state, the transport vehicle is driven to transport the beam piece between the second column and the third column;

[0046] The beam lifting and moving vehicle is controlled to lift the beam piece, and move it between the two adjacent bridge piers, and lower the beam piece onto the two bridge piers.

[0047] Compared with the prior art, the technical solution provided by the present invention has the following advantages:

[0048] The bridge-building machine provided by the disclosed embodiment is provided with a first column, a second column and a third column at the front end, the middle part and the rear end of the machine arm in sequence, and the first column can be extended and retracted relative to the machine arm, the second column can slide and rotate relative to the machine arm through a moving device, and the third column can rotate relative to the machine arm, so that the first column, the second column and the third column can support the machine arm, and the third column can be rotated relative to the machine arm to switch the bridge-building machine between the first working state and the second working state; when the bridge-building machine is in the first working state, the first running mechanism and the second running mechanism can jointly drive the machine arm to move on the bridge deck, and the lifting machine The arm movement efficiency is improved, and the third column is perpendicular to the arm and supported on the bridge deck, so that the third column's own lateral movement function drives the arm to quickly rotate a large angle relative to the bridge deck with the second column as the fulcrum; when the bridge erection machine is in the second working state, the third column fits the lower side of the arm, and the moving device of the second column drives the arm to rotate, so that the rotation angle of the arm relative to the bridge deck can be accurately controlled; through the rotation of the third column relative to the arm, the bridge erection machine can be switched between the first working state in which the arm moves quickly and the second working state in which the arm moves accurately, so that the bridge erection machine is suitable for the erection of bridges with various curvatures, and the scope of application of the bridge erection machine is improved. And the first running wheel group in the first running mechanism of the second column can be lifted and lowered through the suspension system, so that the first running wheel group of the bridge erection machine is in a supporting position and supported on the bridge deck when the bridge erection machine is moving. After the bridge erection machine is erected, the first running wheel group returns to the retracted position and the legs are supported on the bridge deck, thereby improving the stability of the bridge erection machine that has completed the erection operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0049] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0050] In order to more clearly illustrate the embodiments of the present invention 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.

[0051] Figure 1 This is a schematic diagram of the structure of the first column in the embodiment of the present disclosure;

[0052] Figure 2 This is an assembly structure diagram of the longitudinal moving mounting member and the longitudinal driving member according to the embodiment of the present disclosure;

[0053] Figure 3 This is a schematic diagram of the structure of the second column in the embodiment of the present disclosure;

[0054] Figure 4 It is a structural schematic diagram of the mobile device according to an embodiment of the present disclosure;

[0055] Figure 5 This is one of the structural schematic diagrams of the third column described in the embodiment of the present disclosure;

[0056] Figure 6 This is the second structural schematic diagram of the third column described in the embodiment of the present disclosure;

[0057] Figure 7 A side view of the bridge erecting machine according to an embodiment of the present disclosure in a first working state;

[0058] Figure 8 A side view of the bridge erecting machine in the second working state according to the embodiment of the present disclosure;

[0059] Fig. 9 A top view of a bridge erecting machine according to an embodiment of the present disclosure when the first column is supported on the first bridge pier supported on the edge of the bridge head;

[0060] Fig.10 A top view of the bridge erecting machine according to the embodiment of the present disclosure when a curved bridge is being erected and the first column is moved to the second pier adjacent to the downstream of the bridge head;

[0061] Fig.11 A top view of the bridge erecting machine according to the embodiment of the present disclosure when a curved bridge is being erected and the first column is located at the center of the second bridge pier adjacent to the downstream of the bridge head;

[0062] Fig.12 It is a flowchart of the through-hole beam erection method of the bridge erection machine described in the embodiment of the present disclosure.

[0063] Among them, 1. arm; 2. first column; 21. first top beam; 22. first bottom beam assembly; 23. first telescopic cylinder; 24. longitudinal moving mounting member; 25. longitudinal driving member; 3. second column; 31. second top beam; 311. top beam body; 312. load-sharing beam; 32. second bottom beam assembly; 33. second lifting and lowering cylinder; 34. moving device; 341. device body; 342. moving driving part; 343. hanging seat; 344. first lateral driving device; 35. first running mechanism; 4. third column; 41. third top beam; 42. third bottom beam assembly; 421. auxiliary positioning member; 43. third lifting and lowering cylinder; 44. lateral moving part; 45. rotating driving member; 46. second lateral driving device; 47. second running mechanism; 471. synchronization rod; 48. first mounting part; 49. second mounting part; 5. hanging beam moving vehicle; 6. bridge head. DETAILED DESCRIPTION

[0064] In order to more clearly understand the above-mentioned objectives, features and advantages of the present disclosure, the scheme of the present disclosure will be further described below. It should be noted that the embodiments of the present disclosure and the features in the embodiments can be combined with each other without conflict.

[0065] In the following description, many specific details are set forth to facilitate a full understanding of the present disclosure, but the present disclosure may also be implemented in other ways different from those described herein; it is obvious that the embodiments in the specification are only part of the embodiments of the present disclosure, rather than all of the embodiments.

[0066] Reference Figures 1 to 12 As shown, the embodiment of the present disclosure provides a bridge-building machine, including an arm 1, a first column 2, a second column 3 and a third column 4; one end of the first column 2 is connected to the front end of the arm 1, and the first column 2 can be extended and retracted relative to the arm 1; one end of the second column 3 is provided with a moving device 34 slidably connected to the middle part of the arm 1, and the second column 3 is rotatably connected to the moving device 34, and the other end is provided with a first running mechanism 35; one end of the third column 4 is rotatably connected to the rear end of the arm 1, and the other end is provided with a second running mechanism 47, the third column 4 rotates relative to the arm 1 to switch the bridge-building machine between a first working state and a second working state, and the third column 4 is configured to be able to drive the rear end of the arm 1 to move laterally relative to the third column 4 along the arm 1; in the first working state, the third column 4 is perpendicular to the arm 1, and the second column 3 and the third column 4 jointly drive the arm 1 to move, and in the second working state, the third column 4 is attached to the lower side of the arm 1, and the second column 3 alone drives the arm 1 to move.

[0067] Specifically, when the bridge is erected, it has a plurality of piers arranged at intervals, beams are erected on two adjacent piers to form a bridge structure, a plurality of beams are successively erected on two adjacent piers and connected to each other to finally complete the overall erection of the bridge, a plurality of beams 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 one side of the arrangement direction of the plurality of beams when the bridge head is erected, which is downstream of the bridge head 6.

[0068] The pier at the edge of the above-mentioned bridge head 6 is the first pier, and the pier adjacent to the bridge head 6 downstream of the multiple piers arranged at intervals is the second pier. After the erection machine is erected between the first pier and the second pier, the beam piece is transported between the two piers by the machine arm 1 to complete the installation operation of the beam piece.

[0069] In order to ensure that the beam pieces fall to the required position after transportation, the bridge erection machine needs to be supported at the center of the first pier and the center of the second pier respectively, that is, the arm 1 needs to be on the center line formed by the line connecting the center positions of the two piers.

[0070] When the bridge-building machine is erecting a curved bridge, the beam of the bridge head 6 is a straight beam, but multiple piers are arranged at intervals along the arc. The arm 1 extends along the center line of the beam, and the first column 2 at the front end of the arm 1 is offset from the center position of the second pier. In the present application, after the arm 1 extends out of the bridge head 6, the second column 3 is supported at the edge of the bridge deck and is located at the center of the first pier. When the bridge-building machine is in the first working state, the third column 4 drives the arm 1 to move laterally along the arm 1 on the bridge deck, and the arm 1 rotates relative to the second column 3 through the moving device 34, so that the arm 1 rotates relative to the bridge deck with the second column 3 as the fulcrum, thereby adjusting the position of the arm 1 so that the first column 2 on the arm 1 can be supported in the center of the second pier; when the bridge-building machine is in the second working state, the moving device 34 drives the arm 1 to rotate relative to the second column 3, thereby adjusting the position of the arm 1 so that the first column 2 on the arm 1 can be supported in the center of the second pier.

[0071] The above-mentioned arm 1 is usually kept parallel to the bridge deck of the bridge head 6 when in use, the extension direction of the arm 1 is the longitudinal direction of the arm 1, the direction perpendicular to the extension 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, and the two ends of the longitudinal direction of the arm 1 are the front end and the rear end respectively. The side of the arm 1 facing the bridge deck in the vertical direction is the lower side of the arm 1, the first column 2 and the third column 4 are arranged on the lower side of the arm 1, and the second column 3 can be selected as an annular structure, which is arranged around the arm 1, and the axial direction of the annular structure is in the same direction as the longitudinal direction of the arm 1.

[0072] The above-mentioned first column 2 can be selected to include mutually socketed tubes or cylinders, and a driving cylinder is connected between the mutually socketed tubes or cylinders, so that the driving cylinder drives the mutually socketed tubes or cylinders to move closer or farther away from each other, so as to realize the extension and retraction of the first column 2.

[0073] The above-mentioned moving device 34 can be selected to include a block structure and a rotating member. The block structure is slidably connected to the upper side of the machine arm 1. A driving member is arranged on the block structure. The driving member is in transmission connection with the machine arm 1. The driving member drives the block structure to slide relative to the machine arm 1 along the longitudinal direction of the machine arm 1. A rotating driving member is connected between the rotating member and the block structure, so that the rotating driving member drives the rotating member to rotate relative to the moving device 34, thereby rotating the rotating member relative to the block structure. The driving member can be selected to be a motor, a gear is arranged on the output end of the motor, and a rack extending along the longitudinal direction of the machine arm 1 is arranged on the machine arm 1. The gear and the rack are meshed, so that the motor can drive the moving device 34 to move relative to the machine arm 1 along the longitudinal direction of the machine arm 1; the rotating member and the block structure can be connected to each other through a rotating cylinder or a rotating motor, so that the rotating cylinder and the rotating motor drive the rotating member to rotate relative to the block structure; the rotating member is arranged in the vertical direction, and the second column 3 can be selected to be an annular structure, which is arranged around the machine arm 1, so that the rotating member is connected to the inner side of the annular structure.

[0074] The above-mentioned third column 4 can be selected to include a rectangular frame structure, and one end of the frame body can be selected to be rotatably connected to the arm 1 by a hinge. Of course, it is also possible to select a block structure at one end of the frame body, and a block structure can be provided on the arm 1. The block structure on the arm 1 is rotatably connected to the block structure on the frame body through a pin shaft or a rotating shaft.

[0075] A rotating driving component 45 can be selectively connected between the frame body and the arm 1, so that the rotating driving component 45 drives the frame body to rotate relative to the arm 1. The rotating driving component 45 can be selected as a telescopic cylinder, which is rotatably connected to the arm 1, and the telescopic end of the telescopic cylinder is rotatably connected to the frame body, so that the telescopic end of the telescopic cylinder extends and retracts to drive the third column 4 to rotate relative to the arm 1.

[0076] The above-mentioned third column 4 can be selected to include two frames that are slidably connected to each other, the two frames are slidably connected along the horizontal direction of the arm 1, one frame is connected to the arm 1, and the other frame is installed with a second running mechanism 47, and the two ends of the telescopic cylinder arranged along the horizontal direction of the arm 1 are respectively connected to the two frames, so that one frame is supported on the bridge deck, and the other frame drives the arm 1 to move in the horizontal direction of the arm 1 relative to the frame supported on the bridge deck, so that the third column 4 drives the rear end of the arm 1 to move relative to the bridge deck.

[0077] The rotation axis of the third column 4 relative to the arm 1 can be selected to be in the same direction as the horizontal direction of the arm 1, so that when the third column 4 is perpendicular to the arm 1, the third column 4 forms a support for the arm 1 on the bridge deck, and the bridge-building machine is in the first working state; the third column 4 rotates along the longitudinal direction of the arm 1 to a position consistent with the longitudinal direction of the arm 1, so that the third column 4 is attached to the lower side of the arm 1, and the third column 4 and the second running mechanism 47 are out of contact with the bridge deck, and the bridge-building machine is in the second working state.

[0078] The above-mentioned first running mechanism 35 and second running mechanism 47 can both be selected to include a wheel body and a driving member. The driving member can be selected to be a cylinder or a motor. The output end of the driving member is connected to the wheel body, so that the driving member can drive the wheel body to rotate. When the wheel body abuts against the bridge deck, the driving member drives the wheel body to rotate, so that the first running mechanism 35 drives the second column 3 to move relative to the bridge deck, and the second running mechanism 47 drives the third column 4 to move relative to the bridge deck.

[0079] When the above-mentioned bridge erecting machine is in the first working state, the third column 4 is perpendicular to the machine arm 1, so that the first running mechanism 35 and the second running mechanism 47 can both be supported on the bridge deck. When the position of the machine arm 1 is adjusted, the lateral movement function of the third column 4 itself drives the rear end of the machine arm 1 to move relative to the bridge deck, so that the machine arm 1 rotates relative to the second column 3 through the moving device 34. The third column 4 drives the rear end of the machine arm 1 to move laterally, which can make the machine arm 1 rotate at a faster speed and a larger angle, that is, the second column 3 and the third column 4 cooperate with each other to jointly drive the machine arm 1 to move relative to the bridge deck; and the bridge to be erected When the curvature of the beam is small, the rotation angle required to adjust the position of the arm 1 on the bridge deck is smaller. The third column 4 is in a position that fits the arm 1, so that the third column 4 is separated from the bridge deck. The moving device 34 of the second column 3 drives the arm 1 to rotate and adjust the position of the arm 1. The driving force of the moving device 34 acts on the rotation point of the arm 1 when it rotates. The rotation speed of the moving device 34 can be slower, thereby improving the accuracy of the rotation of the arm 1, so that the moving device 34 can accurately control the rotation angle of the arm 1, thereby meeting the progress requirements of the bridge erection machine when erecting a bridge with a smaller curvature.

[0080] When the bridge erection machine provided by the embodiment of the present disclosure is used specifically, the bridge erection machine is placed on the bridge deck of the bridge head 6 and is in the first working state, the second column 3 and the third column 4 support the machine arm 1 on the center line of the bridge deck, and the first running mechanism 35 and the second running mechanism 47 drive the machine arm 1 to move along the center line of the bridge deck on the bridge deck to the position where the first column 2 is opposite to the first bridge pier at the edge of the bridge head; the bridge erection machine is placed on the center line of the bridge deck of the bridge head 6, the first column 2 is supported at the central position of the first bridge pier at the edge of the bridge head 6, and the second column 3 is supported on the center line of the bridge deck; when the curvature of the bridge to be erected is large, the distance required to adjust the position of the machine arm 1 is long and the bridge deck is not easy to be erected. When the boom 1 needs to move quickly, the third column 4 is in a position perpendicular to the boom 1, so that the bridge-building machine is in the first working state, and the third column 4 is supported on the bridge deck perpendicular to the boom 1; the first column 2 is controlled to be in a retracted state, and the first running mechanism 35 and the second running mechanism 47 drive the boom 1 and the first column 2 to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column 3 is supported on the edge of the bridge deck; the third column 4 drives the rear end of the boom 1 to move relative to the bridge deck along the lateral direction of the boom 1, so that the boom 1 and the first column 2 are rotated relative to the second column 3 to the central position of the second pier; the first column 2 is lifted and supported on the second pier to complete the through-hole operation.

[0081] When the curvature of the bridge to be erected is small, the distance required to adjust the position of the arm 1 is short and the required accuracy of the movement of the arm 1 is high, the third column 4 is attached to the lower side of the arm 1, the bridge erection machine is in the second working state, and the second column 3 is supported on the center line of the bridge deck; the first column 2 is controlled to be in a retracted state, and the first running mechanism 35 drives the arm 1 and the first column 2 to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column 3 is supported on the edge of the bridge deck; the moving device 34 drives the arm 1 and the first column 2 to rotate relative to the second column 3 to the central position of the second pier; the first column 2 is lifted and supported on the second pier to complete the through-hole operation.

[0082] The bridge-building machine provided by the disclosed embodiment is provided with a first column 2, a second column 3 and a third column 4 at the front end, the middle part and the rear end of the arm 1 in sequence, and the first column 2 can be extended and retracted relative to the arm 1, the second column 3 can slide and rotate relative to the arm 1 through a moving device 34, and the third column 4 can rotate relative to the arm 1, so that the first column 2, the second column 3 and the third column 4 can support the arm 1, and the rotation of the third column 4 relative to the arm 1 can switch the bridge-building machine between the first working state and the second working state; when the bridge-building machine is in the first working state, the first running mechanism 35 and the second running mechanism 47 can jointly drive the arm 1 to move on the bridge deck, and the lifting of the arm 1 The moving efficiency is improved, and the third column 4 is perpendicular to the arm 1 and supported on the bridge deck, so that the lateral movement function of the third column 4 drives the arm 1 to rotate rapidly at a large angle relative to the bridge deck with the second column 3 as the fulcrum; when the bridge erection machine is in the second working state, the third column 4 is attached to the lower side of the arm 1, and the moving device 34 of the second column 3 drives the arm 1 to rotate, so that the rotation angle of the arm 1 relative to the bridge deck can be accurately controlled; through the rotation of the third column 4 relative to the arm 1, the bridge erection machine can be switched between the first working state in which the arm 1 moves rapidly and the second working state in which the arm 1 moves accurately, so that the bridge erection machine is suitable for the erection of bridges with various curvatures, and the applicable scope of the bridge erection machine is improved. In addition, the first running wheel group in the first running mechanism 35 of the second column 3 can be lifted and lowered through the suspension system, so that the first running wheel group of the bridge erection machine is in a supporting position and supported on the bridge deck when the bridge erection machine is moving, and the first running wheel group returns to the retracted position after the bridge erection machine is erected, so that the legs are supported on the bridge deck, thereby improving the stability of the bridge erection machine that has completed the erection operation.

[0083] Reference Figure 1 and Figure 2As shown, in some embodiments, the first column 2 includes a first top beam 21, a first bottom beam assembly 22 and a first telescopic cylinder 23; the first top beam 21 is installed on the arm 1, the first bottom beam assembly 22 is slidably connected to the first top beam 21, the first telescopic cylinder 23 is arranged between the first top beam 21 and the first bottom beam assembly 22, and the two ends of the first telescopic cylinder 23 are respectively connected to the first top beam 21 and the first bottom beam assembly 22 to drive the first bottom beam assembly 22 to move closer to or away from the first top beam 21.

[0084] Specifically, the first bottom cross beam assembly 22 may be selected as a frame or block structure, the first bottom cross beam assembly 22 has a column structure extending toward the first top beam 21, and the first top beam 21 may be provided with a through hole, so that the column structure and the through hole are movably plugged, so that the first top beam 21 is movably connected to the first bottom cross beam assembly 22. Of course, the first bottom cross beam assembly 22 may also be selected to be recessed on one side of the first top beam 21 to form a movable groove, and the first top beam 21 is provided with a column on one side of the first bottom cross beam assembly 22, and the column is movably plugged into the movable groove, so that the first top beam 21 is movably connected to the first bottom cross beam assembly 22.

[0085] The above-mentioned first telescopic cylinder 23 can be selected as a telescopic cylinder, which is arranged along the direction of the first top beam 21 toward the first bottom beam assembly 22, so that the end of the telescopic cylinder moves in the direction of the first top beam 21 toward the first bottom beam assembly 22; the first top beam 21 is connected to the arm 1, so that after the telescopic cylinder is started, it can drive the first bottom beam assembly 22 to move in the direction away from or close to the first top beam 21, thereby realizing the extension and retraction of the first column 2.

[0086] Reference Figure 1 and Figure 2 As shown, in some embodiments, the first column 2 is provided with a longitudinal moving mounting member 24 and a longitudinal driving member 25, the longitudinal moving mounting member 24 is slidably connected to the machine arm 1 and connected to the first column 2, the longitudinal driving member 25 is mounted on the longitudinal moving mounting member 24, and the longitudinal driving member 25 is transmission-connected to the machine arm 1, so that the longitudinal moving mounting member 24 drives the first column 2 to slide relative to the machine arm 1 along the longitudinal direction of the machine arm 1 under the drive of the longitudinal driving member 25. In this way, when the bridge erection machine is placed on the transport vehicle, the first column 2 can slide on the machine arm 1 to be close to the second column 3, so that the center of gravity of the entire bridge erection machine is close to the transport vehicle, and the stability of the bridge erection machine transported by the transport vehicle is improved; and when the bridge erection machine is erected, the first column 2 slides on the machine arm 1, so as to conveniently adjust the position between the first column 2 and the second column 3, so that the bridge erection machine can adapt to the distance between the bridge pier at the edge of the bridge head 6 and the bridge pier in front of the bridge head 6.

[0087] Specifically, the longitudinal movement mounting member 24 can be selected as a block structure, which is provided with a through groove, and the lower side of the arm 1 is slidably connected with the through groove. The longitudinal driving member 25 can be selected as a motor or a cylinder, and the arm 1 is provided with a rack along the longitudinal direction of the arm 1, and the output end of the cylinder or the motor is provided with a gear meshing with the rack of the arm 1. The output end of the cylinder or the motor rotates to make the gear and the rack interact with each other to drive the longitudinal movement mounting member 24 to move relative to the arm 1 along the longitudinal direction of the arm 1, so that the longitudinal movement mounting member 24 drives the first column 2 to move relative to the arm 1.

[0088] Of course, you can also choose to set a telescopic cylinder on the longitudinal movement mounting member 24 that can be extended and retracted along the longitudinal direction of the arm 1. The telescopic end of the telescopic cylinder is connected to the arm 1. When the telescopic cylinder is extended and shortened, it can drive the first column 2 to move relative to the arm 1 along the longitudinal direction of the arm 1.

[0089] The above-mentioned first top beam 21 can be selectively slidably connected with the longitudinal movement mounting member 24, so that the first top beam 21 can slide in the transverse direction of the arm 1 relative to the longitudinal movement mounting member 24, and a telescopic cylinder that can be extended and retracted in the transverse direction of the arm 1 is provided on the longitudinal movement mounting member 24, and the telescopic end of the telescopic cylinder is connected to the first top beam 21, so that the telescopic cylinder can drive the first top beam 21 and the longitudinal movement mounting member 24 to move relative to each other, thereby realizing the function of the first column 2 moving in the transverse direction of the arm 1 relative to the arm 1.

[0090] The number of the telescopic oil cylinders can be selected to be two, and the two telescopic oil cylinders are located on both sides of the first top beam 21 along the longitudinal direction of the machine arm 1, and the telescopic ends of the two telescopic oil cylinders are connected to the first top beam 21. When the telescopic ends of the two telescopic oil cylinders are extended or retracted at the same time, the two telescopic oil cylinders synchronously drive the first top beam 21 to move relative to the machine arm 1 along the transverse direction of the machine arm 1. It can be selected that the longitudinal moving mounting member 24 is provided with a sliding groove, the sliding groove extends along the transverse direction of the machine arm 1, the first top beam 21 is slidably connected with the sliding groove, and there is a gap between the first top beam 21 and the inner wall of the sliding groove along the longitudinal direction of the machine arm 1. When one of the two telescopic oil cylinders is extended and the other is shortened, the first top beam 21 can rotate slightly relative to the machine arm 1 at a perpendicular axis to the machine arm 1, thereby driving the first column 2 to rotate relative to the machine arm 1; before the first top beam 21 is supported on the bridge pier, the position of the first top beam 21 can be adjusted to improve the accuracy of the position of the first column 2 when it is supported on the bridge pier.

[0091] Reference Figure 3 and Figure 4As shown, in some embodiments, the second column 3 includes a second top beam 31, a second bottom cross beam assembly 32 and a second lifting and lowering cylinder 33; the second top beam 31 is arranged on the upper side of the arm 1, and the moving device 34 is installed on the lower side of the second top beam 31; the moving device 34 is rotatably connected to the second top beam 31 and connected to the arm 1, the second bottom cross beam assembly 32 is arranged on the lower side of the arm 1, and the second bottom cross beam assembly 32 is movably connected to the second top beam 31; a second lifting and lowering cylinder 33 is connected between the second top beam 31 and the second bottom cross beam assembly 32, so that the second lifting and lowering cylinder 33 drives the second bottom cross beam assembly 32 and the second top beam 31 to move closer to and away from each other; a working channel for the beam plate and the arm 1 to pass through is formed between the second top beam 31 and the second bottom cross beam assembly 32.

[0092] With such arrangement, the working channel enables the beam piece to move from the third column 4 to the first column 2 through the working channel, so that the beam piece can be erected.

[0093] Specifically, the above-mentioned second top beam 31 is arranged along the transverse direction of the arm 1, and the second bottom cross beam assembly 32 is arranged along the transverse direction of the arm 1. The two ends of the second top beam 31 along the transverse direction of the arm 1 are connected to the two ends of the second bottom cross beam assembly 32 along the transverse direction of the arm 1, and the middle parts of the second top beam 31 and the second bottom cross beam assembly 32 are spaced apart, so that a channel can be formed between the second top beam 31 and the second bottom cross beam assembly 32; in the subsequent beam piece erection operation, the lower side of the arm 1 can be selected to be slidably connected to the beam moving vehicle 5, the beam moving vehicle 5 slides along the arm 1, the beam piece is connected to the beam moving vehicle 5, and the second top beam 31 is on the upper side of the arm 1, so that the beam moving vehicle 5 slides along the arm 1 to drive the beam piece to move along the longitudinal direction of the arm 1, so that the beam piece moves from the third column 4 through the working channel to the first column 2.

[0094] The second top beam 31 is on the upper side of the arm 1, and the lower side of the second top beam 31 is connected to the moving device 34, so that the arm 1 passes through the working channel surrounded by the second top beam 31 and the second bottom cross beam assembly 32, and the beam piece can pass through the working channel when sliding on the lower side of the arm 1 through the beam moving vehicle 5. The moving device 34 is connected to the arm 1 on the second top beam 31, so that the second top beam 31 rotates relative to the arm 1, and the second column 3 rotates relative to the arm 1.

[0095] Reference Figure 3 and Figure 4As shown, in some embodiments, the second top beam 31 includes a top beam body 311 and a sub-load beam 312, and the moving device 34 includes a device body 341, a moving drive unit 342, a hanger 343 and a first lateral drive device 344; the two ends of the top beam body 311 extend to the two sides of the machine arm 1 along the lateral direction of the machine arm 1; the top beam body 311 is slidably connected to the sub-load beam 312, and a first lateral drive device 344 is arranged between the sub-load beam 312 and the top beam body 311, and the two ends of the first lateral drive device 344 are respectively connected to the sub-load beam 312 and The top beam main body 311 is connected so that the load-bearing beam 312 can slide relative to the top beam main body 311 along the extension direction of the top beam main body 311 under the drive of the first transverse driving device 344; the device main body 341 is slidably connected to the arm 1, and a moving drive unit 342 is connected to the device main body 341, and the moving drive unit 342 is transmission-connected to the arm 1, so that the moving drive unit 342 drives the device main body 341 to move relative to the arm 1 along the longitudinal direction of the arm 1; the hanger 343 is connected to the upper side of the device main body 341, and is rotationally connected to the load-bearing beam 312.

[0096] Specifically, the top beam body 311 and the sub-load beam 312 are both straight beams, the sub-load beam 312 is slidably connected to the top beam body 311, the top beam body 311 can be selected to extend in a direction parallel to the plane where the machine arm 1 is located, the top beam body 311 has a groove, the groove extends along the extension direction of the top beam body 311, and the sub-load beam 312 is slidably arranged in the groove of the top beam body 311, so that the sub-load beam 312 and the top beam body 311 slide relative to each other. Of course, it is also possible to select a slide rail on the top beam body 311, the slide rail is arranged along the extension direction of the top beam body 311, and the sub-load beam 312 is slidably connected to the slide rail.

[0097] The first lateral driving device 344 can be selected as a telescopic oil cylinder, which has a telescopic end. The telescopic oil cylinder and the telescopic end are arranged along the extension direction of the top beam body 311. One end of the telescopic oil cylinder is connected to the sub-load beam 312, and the telescopic end of the telescopic oil cylinder is connected to the top beam body 311, so that when the telescopic oil cylinder is extended and retracted, the telescopic oil cylinder can drive the sub-load beam 312 to slide relative to the top beam body 311. The sub-load beam 312 is rotatably connected to the moving device 34, so that the sub-load beam 312 can rotate relative to the moving device 34, and when the sub-load beam 312 rotates relative to the moving device 34, it can drive the top beam body 311 to rotate relative to the machine arm 1.

[0098] The above-mentioned device body 341 can be optionally provided with a through groove, and the upper side of the arm 1 is slidably connected to the through groove, and the movable driving part 342 can be selected as a motor, and a gear is provided on the output end of the motor, and the arm 1 is provided with a rack extending along the longitudinal direction of the arm 1. The gear on the motor is meshed with the rack on the arm 1, and the output end of the motor rotates, and the device body 341 can be driven to slide on the arm 1 through the cooperation of the gear and the rack; of course, the movable driving part 342 can also be selected as a telescopic cylinder, one end of the telescopic cylinder is connected to the arm 1, and the other end is connected to the device body 341, the telescopic cylinder is arranged along the longitudinal direction of the arm 1, and the telescopic cylinder can drive the device body 341 to slide relative to the arm 1 by telescoping.

[0099] The lower side of the above-mentioned device body 341 is slidingly connected to the upper side of the arm 1, and the hanger 343 is connected to the upper side of the device body 341, and the hanger 343 is rotatably connected to the sub-load beam 312, so that the sub-load beam 312 can rotate relative to the device body 341 through the hanger 343; the device body 341 is along the longitudinal direction of the arm 1, so that the arm 1 gives the top beam body 311 a reaction force along the longitudinal direction of the arm 1 through the device body 341, and the first lateral driving device 344 can give the top beam body 311 a force in another direction that is at an angle to the reaction force through the sub-load beam 312, so that the top beam body 311 is driven to rotate relative to the device body 341 under the combined force of the forces in the two directions, so that the angle between the extension direction of the top beam body 311 and the longitudinal direction of the arm 1 changes.

[0100] Of course, you can also choose to install an external power source on the second column 3, and the moving device 34 is rotatably connected to the second top beam 31. The external power source drives the second column 3 to rotate relative to the arm 1. You can choose to use a traction rope to connect to the second top beam 31 or the second bottom beam assembly 32. The staff uses the traction rope to pull the second top beam 31 or the second bottom beam assembly 32 to rotate relative to the mount, so that the second column 3 rotates relative to the arm 1, so that the staff pulls the traction rope as an external power source; of course, you can also choose to use a hydraulic push rod to abut the second top beam 31 or the second bottom beam assembly 32, so that the thrust of the hydraulic push rod pushes the second top beam 31 or the second bottom beam assembly 32 to rotate relative to the mount 343, that is, the hydraulic push rod pushes the second column 3 to rotate relative to the arm 1, so that the hydraulic push rod is used as an external power source.

[0101] The first lateral drive device 344 drives the sub-load beam 312 and the top beam body 311 to slide relative to each other, so that the second column 3 can slide relative to the arm 1 in the extension direction of the top beam body 311; the relative sliding of the sub-load beam 312 and the top beam body 311 can assist in adjusting the relative position of the arm 1 and the bridge deck, so that the arm 1 has a larger adjustable range, and improves the convenience of adjusting the position of the arm 1 during the erection of the bridge machine. When the bridge machine is in the first working state and the second working state, the relative rotation between the arm 1 and the second column 3 can adjust the relative position between the arm 1 and the bridge deck, which is convenient for adjusting the position of the first column 2.

[0102] Reference Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, the third column 4 includes a frame body, a transverse moving part 44, a rotating drive member 45 and a second transverse driving device 46; one end of the frame body is rotatably connected to the arm 1, and the other end is slidably connected to the transverse moving part 44; the rotating drive member 45 is connected between the frame body and the arm 1, and the rotating drive member 45 drives the frame body to rotate relative to the arm 1; the second transverse driving device 46 is connected between the frame body and the transverse moving part 44 to drive the frame body to move laterally relative to the transverse moving part 44 along the arm 1; the second running mechanism 47 is connected to the side of the transverse moving part 44 away from the frame body.

[0103] Specifically, the frame body can be selected as a rectangular frame structure, one end of the frame body can be selected to be connected to the machine arm 1, and the other end can be slidably connected to the transverse moving part 44 through a track structure; the second transverse driving device 46 can be selected as a telescopic oil cylinder with a telescopic end, and the telescopic oil cylinder can be selected to be arranged along the transverse direction of the machine arm 1, the telescopic oil cylinder is connected to the transverse moving part 44, and the telescopic end is connected to the frame body, so that the telescopic end can push the frame body to slide relative to the transverse moving part 44 along the transverse direction of the machine arm 1 when extending and retracting under the drive of the oil cylinder. The second running mechanism 47 is arranged on the side of the transverse moving part 44 away from the frame body. When the second running mechanism 47 is supported on the bridge deck, the relative movement of the transverse moving part 44 and the frame body causes the frame body to drive the rear end of the machine arm 1 to move relative to the bridge deck in the transverse direction of the machine arm 1.

[0104] When the above-mentioned frame body is at the center of the lateral moving part 44, the frame body is in the reference position, and the maximum distance that the frame body can move in one direction in the lateral direction of the arm 1 relative to the reference position is 800 mm. The frame body can move in two opposite directions in the lateral direction of the arm 1 relative to the reference position, that is, the maximum distance that the frame body can move in the lateral direction of the arm 1 relative to the lateral moving part 44 is 1600 mm.

[0105] The rotating drive member 45 can be selected as a hydraulically driven cylinder, which has a telescopic end. The telescopic end can extend and retract the cylinder in one direction under the hydraulic drive in the cylinder; the cylinder of the rotating drive member 45 can be selected to be rotatably connected to the arm 1 by a hinge or bolt connection, and the telescopic end is connected to the frame body 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 extends and retracts relative to the cylinder, it pushes the third column 4 to rotate relative to the arm 1; of course, the rotating drive member 45 can also be selected as a motor, the motor is arranged on the third column 4, and the output end of the motor is connected to the rotating shaft of the rotation connection between the third column 4 and the arm 1, so that the motor can drive the third column 4 to rotate relative to the arm 1.

[0106] Reference Figure 5 , Figure 6 and Figure 7 As shown, in some embodiments, the frame body includes a third top beam 41, a third bottom beam assembly 42 and a third lifting and lowering cylinder 43; the third top beam 41 is rotatably connected to the arm 1, and the rotating drive member 45 is installed between the arm 1 and the third top beam 41; the third bottom beam assembly 42 is movably connected to the third top beam 41, and the third lifting and lowering cylinder 43 is connected between the third top beam 41 and the third bottom beam assembly 42 to drive the third bottom beam assembly 42 to approach or move away from the third top beam 41; the lateral moving part 44 is slidably connected to the side of the third bottom beam assembly 42 away from the third top beam 41, and the second lateral driving device 46 is connected between the third bottom beam assembly 42 and the lateral moving part 44 to drive the third bottom beam assembly 42 to move laterally relative to the lateral moving part 44 along the arm 1.

[0107] With such arrangement, the third lifting and lowering cylinder 43 controls the relative movement between the third top beam 41 and the third bottom cross beam assembly 42. When the third column 4 needs to be supported on the bridge deck, the third column 4 can be selected to be in a position perpendicular to the arm 1, and the third bottom cross beam assembly 42 is moved in a direction away from the third top beam 41, so that the second running mechanism 47 can fully abut against the bridge deck; when the third column 4 needs to be in contact with the lower side of the arm 1, the third column 4 can be selected to be in a position perpendicular to the arm 1, and the third bottom cross beam assembly 42 is first driven to move toward the third top beam 41 to disengage the second running mechanism 47 from the bridge deck, and then the driving member 45 is rotated to drive the third column 4 to move to a position in contact with the lower side of the arm 1, thereby reducing the resistance of the third column 4 to rotation relative to the arm 1.

[0108] Specifically, the third bottom cross beam assembly 42 may be selected as a frame or block structure, the third bottom cross beam assembly 42 has a column structure extending toward the third top beam 41, and the third top beam 41 may be provided with a through hole, so that the column structure and the through hole are movably plugged, so that the third top beam 41 is movably connected to the third bottom cross beam assembly 42. Of course, the third bottom cross beam assembly 42 may also be selected to be recessed on one side of the third top beam 41 to form a movable groove, and the third top beam 41 is provided with a column on one side of the third bottom cross beam assembly 42, and the column is movably plugged into the movable groove, so that the third top beam 41 is movably connected to the third bottom cross beam assembly 42.

[0109] The above-mentioned third lifting and lowering cylinder 43 can be selected as a telescopic cylinder, which is arranged along the direction of the third top beam 41 toward the third bottom cross beam assembly 42, so that the end of the telescopic cylinder moves in the direction of the third top beam 41 toward the third bottom cross beam assembly 42; the third top beam 41 is connected to the arm 1, so that after the telescopic cylinder is started, it can drive the third bottom cross beam assembly 42 to move in the direction away from or close to the third top beam 41, thereby realizing the extension and retraction of the third column 4.

[0110] In some embodiments, a first positioning member is provided on the third bottom beam assembly 42, and a second positioning member is provided on the lateral moving portion 44. When the third column 4 switches between the first working state and the second working state, the first positioning member and the second positioning member are connected to each other through a connecting member. When the third column 4 moves laterally along the arm 1 relative to the lateral moving portion 44, the connecting member is separated from the first positioning member and the second positioning member.

[0111] Specifically, the first positioning member can be selected as a protrusion set on the third bottom cross beam assembly 42, and the second positioning member can be selected as a protrusion set on the transverse moving part 44. The first positioning member and the second positioning member can be selected to be provided with a through hole in the direction of the third bottom cross beam assembly 42 toward the machine arm 1. When the first positioning member and the second positioning member are opposite to each other in the direction of the third bottom cross beam assembly 42 toward the machine arm 1, bolts are used as connecting members to pass through the through holes on the first positioning member and the second positioning member, and nuts are connected at both ends of the bolts, so as to connect the first positioning member and the second positioning member to each other. Alternatively, the first positioning member can be selected as a block set on the third bottom cross beam assembly 42, the second positioning member can be selected as a block convexly set on the transverse moving part 44, and the connecting member can be a hook, and the two ends of the hook are respectively hooked with the block on the third bottom cross beam assembly 42 and the block on the transverse moving part 44, so that the first positioning member and the second positioning member can be detachably connected.

[0112] When the first positioning member and the second positioning member are detachably connected, the relative movement of the transverse moving part 44 and the third bottom cross beam assembly 42 in the transverse direction of the machine arm 1 is limited. When the third column 4 needs to rotate relative to the machine arm 1 to switch the bridge erecting machine between the first working state and the second working state, the first positioning member and the second positioning member are detachably connected to avoid relative movement between the transverse moving part 44 and the third bottom cross beam assembly 42 when the third column 4 rotates. When the third column 4 is in the first working state and the position between the machine arm 1 and the bridge deck or the ground needs to be adjusted, the first positioning member and the second positioning member are separated from each other, so that the transverse moving part 44 can move relative to the third bottom cross beam assembly 42 in the transverse direction of the machine arm 1.

[0113] The number of the above-mentioned first positioning members can be selected to be multiple, the number of the second positioning members can be selected to be multiple, and the number of the first positioning members is equal to the number of the second positioning members, multiple first positioning members are arranged on the third bottom beam assembly 42 at lateral intervals along the arm 1, and multiple second positioning members are arranged on the lateral moving part 44 at lateral intervals along the arm 1, and the multiple first positioning members are relatively arranged one-to-one with the multiple second positioning members, and the multiple first positioning members are detachably connected to the multiple second positioning members one-to-one with the multiple second positioning members through bolts.

[0114] In some embodiments, an auxiliary positioning member 421 is provided on the third bottom beam assembly 42, and a positioning pin is provided on the auxiliary positioning member 421. When the bridge crane switches between the first working state and the second working state, the positioning pin is connected to the transverse moving part 44. When the third column 4 moves laterally relative to the transverse moving part 44 along the machine arm 1, the positioning pin is separated from the transverse moving part 44.

[0115] Specifically, the auxiliary positioning member 421 is arranged at a position of the third bottom beam assembly 42 close to the transverse moving part 44, the auxiliary positioning member 421 can be selected to extend in the direction of the transverse moving part 44, the auxiliary positioning member 421 is arranged on one side of the third bottom beam assembly 42 along the longitudinal direction of the arm 1, a through hole is provided on the auxiliary positioning member 421, and the positioning pin passes through the through hole on the auxiliary positioning member 421 and is detachably connected with the transverse moving part 44; the transverse moving part 44 can be selected to be provided with a buckle, and the buckle is connected to the positioning pin by snapping; of course, the transverse moving part 44 can also be selected to be provided with a screw hole, and the end of the positioning pin is provided with a thread, so that the positioning pin on the auxiliary positioning member 421 is threadedly connected with the screw hole on the transverse moving part 44.

[0116] The third bottom cross beam assembly 42 may be optionally provided with two auxiliary positioning members 421, which are arranged at both ends of the third bottom cross beam assembly 42 along the lateral direction of the machine arm 1, and the two auxiliary positioning members 421 are detachably connected to the lateral moving part 44 through two positioning pins.

[0117] When the third column 4 rotates relative to the arm 1 so that the bridge erecting machine switches between the first working state and the second working state, the auxiliary positioning member 421 is detachably connected to the lateral moving part 44, so that the relative movement between the lateral moving part 44 and the third bottom cross beam assembly 42 is limited, that is, when the third column 4 rotates relative to the arm 1 so that the bridge erecting machine switches between the first working state and the second working state, the auxiliary positioning member 421 is connected to the lateral moving part 44 to improve the overall structural stability of the third column 4. When the bridge erecting machine is in the first working state, the third column 4 is perpendicular to the arm 1, and the position between the arm 1 and the bridge deck or the ground needs to be adjusted, the auxiliary positioning member 421 and the lateral moving part 44 are separated from each other, so that the lateral moving part 44 can move relative to the third bottom cross beam assembly 42 in the lateral direction of the arm 1.

[0118] The third bottom cross beam assembly 42 may be provided with an auxiliary positioning member 421 and a first positioning member at the same time. In the lateral direction of the machine arm 1 , the auxiliary positioning member 421 is spaced apart from the first positioning member and the second positioning member.

[0119] The bridge-building machine switches between the first working state and the second working state. At this time, the third column 4 rotates relative to the arm 1, the auxiliary positioning member 421 is connected to the transverse moving part 44 through the positioning pin, and the first positioning member and the second positioning member are detachably connected, thereby improving the structural stability of the third column 4, and the connection between the auxiliary positioning member 421 and the transverse moving part 44 can share the force exerted on the first positioning member and the second positioning member; when the bridge-building machine is in the first working state, the third column 4 is supported on the bridge deck or the ground perpendicular to the arm 1, and the position between the arm 1 and the bridge deck or the ground needs to be adjusted, the auxiliary positioning member 421 and the transverse moving part 44 are separated from each other, and the first positioning member and the second positioning member are separated from each other, so that the transverse moving part 44 can move relative to the third bottom beam assembly 42 in the transverse direction of the arm 1.

[0120] In some embodiments, the second running mechanism 47 includes two rolling wheels, and two first mounting parts 48 and two second mounting parts 49 are provided on the side of the transverse moving part 44 facing away from the frame body, the two first mounting parts 48 are arranged at intervals along the transverse direction of the arm 1, the two second mounting parts 49 are arranged between the two first mounting parts 48, and the two second mounting parts 49 are arranged at intervals along the transverse direction of the arm 1, the two first mounting parts 48 are symmetrically arranged about the transverse midpoint of the transverse moving part 44 along the transverse direction of the arm 1, the two second mounting parts 49 are symmetrically arranged about the transverse midpoint of the transverse moving part 44 along the transverse direction of the arm 1, and the two rolling wheels are respectively connected to the two first mounting parts 48 or the two rolling wheels are respectively connected to the two second mounting parts 49.

[0121] Specifically, the first mounting portion 48 and the second mounting portion 49 can be selected as flanges or mounting holes provided on the transverse moving portion 44, the two first mounting portions 48 are provided at both ends of the transverse moving portion 44 along the transverse direction of the machine arm 1, and the two second mounting portions 49 are provided at positions close to the middle of the transverse moving portion 44. The two first mounting portions 48 are symmetrical about the midpoint of the transverse moving portion 44, so that the third column 4 can be in a balanced state when the two rolling wheels are supported on the bridge deck or the ground; the two second mounting portions 49 are symmetrical about the midpoint of the transverse moving portion 44, so that the third column 4 can be in a balanced state when the two rolling wheels are supported on the bridge deck or the ground.

[0122] The above-mentioned second running mechanism 47 includes two rolling wheels, and the rotating shaft of the rolling wheels is arranged along the horizontal direction of the machine arm 1. When the bridge-building machine needs to transport double-track prefabricated box girders, the two rolling wheels are connected to the two first mounting parts 48, so that the distance between the two rolling wheels is larger, thereby improving the stability of the third column 4 when transporting the double-track prefabricated box girders. When the bridge-building machine needs to transport single-track prefabricated box girders, the two rolling wheels are connected to the two second mounting parts 49, so that the distance between the two rolling wheels is smaller, thereby improving the flexibility of the third column 4 when moving on the bridge deck or the ground.

[0123] In some embodiments, the second running mechanism 47 includes a synchronization rod 471, a steering drive, multiple steering structures and multiple wheel assemblies; the multiple steering structures are arranged on the third bottom beam assembly 42 at intervals along the lateral direction of the arm 1, and the multiple wheel assemblies are connected to the multiple steering structures one by one; the steering drive is arranged on the third bottom beam assembly 42 and is connected to any steering structure, the synchronization rod 471 is arranged on one side of the multiple steering structures along the longitudinal direction of the arm 1, and extends along the lateral direction of the arm 1, and the multiple steering structures are interconnected by the synchronization rod 471, so that the steering drive drives the multiple steering structures to rotate in the same direction and at the same angle.

[0124] Specifically, the number of wheel assemblies and steering structures can be selected to be two, and the two steering structures are arranged at intervals along the lateral direction of the arm 1. The two wheel assemblies are connected to the two steering structures, so that the two wheel assemblies support the third bottom beam assembly 42 on the ground; the wheel assembly includes a wheel body, and the wheel body rotates to enable the third bottom beam assembly 42 to move on the ground, and the direction in which the wheel body moves forward when it rotates on the ground is the travel direction of the wheel body assembly; when the bridge crane passes through a curved section, the wheel body rotates relative to the third bottom beam assembly 42, changing the travel direction of the wheel body, thereby adjusting the movement direction of the third bottom beam assembly 42 and the arm 1 where the third bottom beam assembly 42 is provided, so that the end of the arm 1 provided with the third bottom beam assembly 42 moves relative to the end of the arm 1 away from the third bottom beam assembly 42, thereby adjusting the orientation of the arm 1.

[0125] The above-mentioned wheel body assembly and steering structure can be connected to each other and serve as a rolling wheel. The two wheel body assemblies are connected to the two steering structures one by one to form two rolling wheels, and the two rolling wheels are connected to each other through a synchronization rod 471; that is, after the two steering structures are respectively connected to the two first mounting parts 48, the two wheel body assemblies are respectively connected to the two steering structures, so that the third column 4 can be adapted to transport double-line prefabricated box girders. At this time, the distance between the two steering structures is relatively far, and a longer synchronization rod 471 is required to connect the two steering structures; after the two steering structures are respectively connected to the two second mounting parts 49, the two wheel body assemblies are respectively connected to the two steering structures, so that the third column 4 can be adapted to transport single-line prefabricated box girders. At this time, the distance between the two steering structures is relatively close, and a shorter synchronization rod 471 needs to be replaced to connect the two steering structures; that is, when adjusting the distance between the two steering structures, the synchronization rod 471 of the corresponding length is replaced to achieve the connection of the two steering structures.

[0126] The above-mentioned synchronization rod 471 can be selected to include an adjustment rod and two assembly rods, and the two assembly rods are connected to the two ends of the adjustment rod by threads. Of course, the two assembly rods can also be connected to the two ends of the adjustment rod by bolts, so that the two assembly rods are detachably connected to the two ends of the adjustment rod. The two assembly rods are respectively connected to the two steering structures. When the two steering structures are respectively connected to the two first mounting parts 48, so that the third column 4 is adapted to the double-track prefabricated box girder, the two assembly rods are connected to the adjustment rods adapted to the distance between the two first mounting parts 48, so that the two assembly rods are arranged corresponding to the two steering structures installed on the two first mounting parts 48, so that the two assembly rods can be connected to the two steering structures. When the two steering structures are connected to the two second mounting parts 49, so that the third column 4 is adapted to the single-track prefabricated box girder, the two assembly rods are connected to the adjustment rods adapted to the distance between the two second mounting parts 49, so that the two assembly rods are arranged corresponding to the two steering structures installed on the two second mounting parts 49, so that the two assembly rods can be connected to the two steering structures.

[0127] The above-mentioned steering structure can be selected as a rotating shaft that is rotatably arranged on a side of the third bottom beam assembly 42 away from the machine arm 1, the rotating shaft extends along the height direction of the third bottom beam assembly 42, the wheel assembly is connected to the rotating shaft, and the rotating shaft drives the wheel assembly to rotate relative to the third bottom beam assembly 42, thereby adjusting the direction of the rotating shaft of the wheel body of the wheel assembly to change the forward direction of the third bottom beam assembly 42 driven by the wheel assembly, thereby adjusting the position of the machine arm 1, and facilitating the bridge erection machine to pass through a curved section. Of course, a flange plate connected to a side surface of the third bottom beam assembly 42 away from the machine arm 1 can also be selected as a steering structure, the flange plate is provided with a rotating shaft rotatably connected to the third bottom beam assembly 42, and the wheel assembly is connected to the flange plate, so that when the flange plate rotates relative to the third bottom beam assembly 42, it drives the wheel assembly to rotate relative to the third bottom beam assembly 42 to adjust the corresponding travel direction of the wheel assembly.

[0128] The above-mentioned steering drive component can be selected as a hydraulic cylinder or a hydraulic cylinder. The hydraulic cylinder or the hydraulic cylinder has a telescopic end that can be extended and retracted. The hydraulic cylinder or the hydraulic cylinder is connected to the third bottom beam assembly 42. The telescopic end of the hydraulic cylinder or the hydraulic cylinder is connected to the rotating shaft, so that the rotating shaft can be driven to drive the wheel body assembly to rotate when the telescopic end is extended and retracted; of course, the steering drive component can also be selected as a motor, a rack is arranged on the periphery of the steering structure, the motor is installed on the third bottom beam assembly 42, and a gear is arranged at the output end of the motor, the gear at the output end of the motor is meshed with the rack at the periphery of the steering structure, and the output end of the motor rotates to drive the steering structure to rotate through the cooperation of the gear and the rack.

[0129] The above-mentioned synchronization rod 471 can be selected as a straight rod extending along the transverse direction of the arm 1. The synchronization rod 471 is arranged on the third bottom beam assembly 42 along the longitudinal direction of the arm 1, so that the synchronization rod 471 is located on the same side of the multiple steering structures, and the synchronization rod 471 and the multiple steering structures are at an equal distance from each steering structure in the longitudinal direction of the arm 1; thus, after the multiple steering structures are rotationally connected to the synchronization rod 471, when one steering structure rotates, it drives the synchronization rod 471 to move, and the movement of the synchronization rod 471 drives the other steering structures to rotate, so that the distance that the synchronization rod 471 moves relative to each steering structure is the same, so that the multiple steering structures can rotate in the same direction by the same angle.

[0130] A plurality of through holes may be selectively provided on the above-mentioned synchronization rod 471, and a protrusion is provided on the steering structure, which is rotatably connected to the through hole via a bolt or a pin structure, and the protrusions of the plurality of steering structures are rotatably connected to the plurality of through holes respectively and one by one, and the plurality of steering structures are rotatably connected to the synchronization rod 471 at the same time, so that when the synchronization rod 471 moves laterally along the machine arm 1, the synchronization rod 471 drives the plurality of steering structures to rotate at the same time, and the synchronization rod 471 is on one side of the plurality of steering structures, so that when the synchronization rod 471 moves, the plurality of steering structures are driven to rotate in the same direction and at the same angle.

[0131] By rotating and connecting multiple steering structures on one side of the third bottom cross beam assembly 42, multiple wheel body assemblies are connected to the multiple steering structures in a one-to-one correspondence, so that the multiple wheel body assemblies support the third bottom cross beam assembly 42 and the machine arm 1 on the ground; the synchronization rod 471 is rotationally connected to the multiple steering structures, and the steering drive is connected between a steering structure and the third bottom cross beam assembly 42, so that the steering drive drives one steering structure to rotate, and can drive other steering structures to rotate in the same direction and the same angle through the synchronization rod 471, so as to achieve simultaneous adjustment of the travel direction corresponding to the multiple wheel body assemblies. When the third column 4 is traveling on the curved section, the multiple wheel body assemblies adjust the travel direction according to the curved section in real time, so as to adjust the position of the machine arm 1 on the curved section in real time, so that the third column 4 moves on the center line of the curved section, so that after the bridge erection machine passes through the curved section, the machine arm 1 is on the center line of the subsequent section of the curved section, avoiding the need to adjust the direction and position of the bridge erection machine after the bridge erection machine passes through the curved section before the subsequent through-hole erection operation can be carried out, thereby improving the working efficiency of the bridge erection machine.

[0132] In some embodiments, the first running mechanism 35 includes a first running wheel group, a suspension system and a support leg; the first running wheel group is arranged on the lower side of the second column 3, and is movably connected to the second column 3 through the suspension system, so that the first running wheel group can switch between a supporting position supported on the bridge deck and a retracted position retracted on the second column 3; when the first running wheel group is in the retracted position, the support leg is supported on the bridge deck, and when the first running wheel group is in the supporting position, the support leg is spaced from the bridge deck.

[0133] With such arrangement, when the first running wheel group is in the supporting position, the first running wheel group supports the second column 3 on the bridge deck, and the rolling of the first running wheel group can drive the second column 3 to move relative to the bridge deck; when the first running wheel group is in the retracted position, the support legs support the second column 3 on the bridge deck, so that the relative position between the second column 3 and the bridge deck remains stable, and when the arm 1 rotates with the second column 3 as the fulcrum, the first running wheel group is in the retracted position to enhance the stability of the second column 3.

[0134] Specifically, the suspension system can be selected to include a fixed arm, a telescopic arm and a connecting arm; one end of the fixed arm is connected to the second column 3, and the other end is rotatably connected to the connecting arm, one end of the telescopic arm is rotatably connected to the fixed arm, and the other end is rotatably connected to an end of the connecting arm away from the fixed arm, the telescopic arm is telescoped relative to the fixed arm to drive the connecting arm to rotate relative to the fixed arm, and the first wheel body assembly is rotatably connected to the connecting arm.

[0135] When the telescopic arm is extended, the connecting arm rotates in the direction away from the third column, so that the first running wheel group moves in the direction away from the second column 3, so that the first running wheel group can be supported on the bridge deck. At this time, the first running wheel group is in the supporting position, and the outriggers are separated from the bridge deck. The first running wheel group can roll on the bridge deck and move the second column 3 on the bridge deck; when the telescopic arm is retracted, the connecting arm rotates in the direction close to the third column, so that the first running wheel group moves in the direction close to the second column 3, so that the first running wheel group is separated from the bridge deck. At this time, the first running wheel group is in the retracted position, and the outriggers are supported on the bridge deck. The first running wheel group cannot drive the second column 3 to move on the bridge deck, and the relative position between the second column 3 and the bridge deck remains stable.

[0136] In some embodiments, the second running mechanism 47 includes a second running wheel set and a motor, the second running wheel set and the motor are connected to the lateral moving part 44, and the output end of the motor is connected to the running wheel set so that the motor drives the running wheel set to roll.

[0137] Specifically, the second running wheel group can be selected to have a wheel body and an axle. The axle rotates with the output end of the motor, and the wheel body is installed on the axle, so that the motor can drive the axle to drive the wheel body to rotate. Therefore, when the second running wheel group is supported on the bridge deck, the motor drives the second running wheel group to roll and drive the third column 4 to move on the bridge deck.

[0138] Reference Figure 7 and Figure 8 As shown, in some embodiments, a beam lifting moving vehicle 5 for lifting beam pieces is movably provided on the machine arm 1 , and the beam lifting moving vehicle 5 can move relative to the machine arm 1 along the longitudinal direction of the machine arm 1 .

[0139] Specifically, a beam crane moving vehicle 5 can be selected to include a crane body, a hanger and a drive motor; the crane body is slidably connected to the lower side of the arm 1, and the drive motor is arranged on the crane body and is transmission-connected to the arm 1, so that the drive motor drives the crane body to slide relative to the arm 1 along the longitudinal direction of the arm 1; the hanger is connected to the side of the crane body away from the arm 1, and a single-line shoulder pole assembly and a double-line shoulder pole assembly are detachably connected to the hanger, and the single-line shoulder pole assembly or the double-line shoulder pole assembly is used to connect with the beam piece, and the single-line shoulder pole assembly or the double-line shoulder pole assembly can adapt to different types of prefabricated beam pieces, thereby improving the scope of application of the bridge erection machine.

[0140] There are generally two beam-lifting mobile vehicles 5, which are spaced apart in the longitudinal direction of the boom 1 to provide two lifting points for the beam piece, and can also provide counterweight for the boom 1 during movement and erection. When the front end of the boom 1 extends out of the edge of the bridge head 6, the beam-lifting mobile vehicle 5 can be selected at the rear end of the boom 1 to balance the counterweight of the boom 1, so that the boom 1 can stably extend out of the edge of the bridge head 6.

[0141] The above-mentioned crane body is provided with an arm channel, and the arm 1 is inserted into the arm channel and is slidably connected with the crane body. The arm channel can be selected as a groove formed by a depression on one side of the crane body, and the groove runs through the crane body. The crane body and the arm 1 can be slidably connected by inserting the arm 1 into the groove.

[0142] A gear may be optionally installed at the output end of the driving motor, and a rack extending longitudinally along the arm 1 is provided on the arm 1. The gear and the rack are meshed so that when the output end of the driving motor rotates, the gear and the rack cooperate to drive the crane body to slide relative to the arm 1 along the longitudinal direction of the arm 1.

[0143] Reference Figures 1 to 10 As shown, the embodiment of the present disclosure also provides a through-hole beam erection method of a bridge erection machine, including a through-hole step, and the through-hole step includes:

[0144] Step S1, the bridge erection machine is placed on the bridge deck of the bridge head 6 and is in the first working state, the second column 3 and the third column 4 support the arm 1 on the center line of the bridge deck, and the first running mechanism 35 and the second running mechanism 47 drive the arm 1 to move along the center line of the bridge deck to the position where the first column 2 is opposite to the first bridge pier at the edge of the bridge head 6. The bridge erection machine is first placed on the bridge deck of the bridge head 6 and has a spacing with the edge of the bridge head, so that the bridge erection machine is first debugged, and then the bridge erection machine moves on the bridge deck along the center line of the bridge deck. At this time, in order to ensure the movement efficiency of the bridge erection machine, the bridge erection machine needs to be in the first working state, and the second column 3 and the third column 4 jointly support the arm 1 on the bridge deck, so that the first running mechanism 35 and the second running mechanism 47 can jointly drive the arm 1 to move.

[0145] Step S2, the first column 2 is supported on the central position of the first pier at the edge of the bridge head 6, the second column 3 is supported on the center line of the bridge deck, when the bridge erection machine is in the first working state, the third column 4 is supported on the bridge deck, when the bridge erection machine is in the second working state, the third column 4 is attached to the machine arm 1 and is spaced from the bridge deck. The first column 2 is supported on the pier at the edge of the bridge head 6, the second column 3 is supported on the center line of the bridge deck, when the bridge erection machine is in the first working state, the third column 4 is supported on the bridge deck, when the bridge erection machine is in the second working state, the third column 4 is attached to the machine arm 1 and is spaced from the bridge deck. The side view of the bridge erection machine in the first working state is as follows Figure 7 As shown, the second column 3 and the third column 4 jointly support the arm 1 on the bridge deck; when the bridge erector is in the second working state, the third column 4 fits the lower side of the arm 1, and the second column 3 supports the arm 1 on the bridge deck. When the curvature of the bridge to be erected is large and the position of the arm 1 needs to be adjusted at a faster speed, the bridge erector is in the first working state; when the curvature of the bridge to be erected is small and the position adjustment operation of the arm 1 requires high precision when the arm 1 moves, the bridge erector is in the second working state. Fig. 9The figure shows a top view of the bridge erecting machine with the arm on the center line of the bridge deck and the first column 2 supported at the center of the first pier at the edge of the bridge head.

[0146] Step S3, control the first column 2 to be in a retracted state. When the bridge erecting machine is in the first working state, the first running mechanism 35 and the second running mechanism 47 drive the arm 1 and the first column 2 to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column 3 is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in the second working state, the first running mechanism 35 drives the arm 1 and the first column 2 to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column 3 is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in the first working state, the first running mechanism 35 and the second running mechanism 47 can jointly provide a driving force for the movement of the arm 1 and increase the speed of the arm 1 moving relative to the bridge deck. When the bridge erecting machine is in the second working state, the first running mechanism 35 moves relative to the bridge deck and drives the arm 1 to move relative to the bridge deck.

[0147] The front end of the arm 1 moves to the second bridge pier, so that the first column 2 is arranged opposite to the second bridge pier. Since the arm 1 moves along the center line of the bridge deck, when the first column 2 is opposite to the second bridge pier, the second column 3 is located on the center line of the bridge deck. After the arm 1 moves along the center line of the bridge deck and extends out of the bridge head, the first column 2 will be offset from the center position of the second bridge pier. Fig.10 It is a top view when the arm of the bridge-erecting machine extends out of the bridge head along the center line of the bridge deck, and the center position of the first column 2 and the second pier is offset.

[0148] Step S4, when the bridge erecting machine is in the first working state, the third column 4 drives the rear end of the arm 1 to move relative to the bridge deck along the lateral direction of the arm 1, so that the arm 1 and the first column 2 rotate relative to the second column 3 to the central position of the second bridge pier. When the bridge erecting machine is in the second working state, the moving device 34 drives the arm 1 and the first column 2 to rotate relative to the second column 3 to the central position of the second bridge pier. The bridge erecting machine in the first working state provides driving force for the rotation of the arm 1 through the lateral movement function of the third column 4, so that the arm 1 can rotate at a faster speed. The bridge erecting machine in the second working state drives the arm 1 to rotate through the moving device 34. The rotation speed of the arm 1 is slow, but the position accuracy during the rotation process is high, so that the arm 1 can stop rotating immediately when the first column 2 is relative to the central position of the second bridge pier. Fig.11 It is a top view of the bridge erecting machine when the first column 2 is opposite to the central position of the second pier.

[0149] Step S5, lifting the first column 2 to support it on the second pier to complete the through-hole operation.

[0150] In step S5, the first top beam 21 of the first column 2 can be selected to be slidably connected to the longitudinal movement mounting member 24, and two telescopic cylinders are provided on the longitudinal movement mounting member 24, and the two telescopic cylinders can drive the first top beam 21 to rotate relative to the arm 1; the bridge pier is usually a rectangular column structure, and the direction of the bridge pier in the horizontal direction perpendicular to the center line of the bridge deck is the length direction of the bridge pier. In step S5, the first column 2 is supported before the second pier, one of the two telescopic cylinders is extended and the other is shortened, so that the two telescopic cylinders drive the first column 2 to rotate relative to the arm 1, and adjust the direction of the first column 2 so that the first top beam 21 and the first bottom cross beam assembly 22 are parallel to the length direction of the second pier, thereby avoiding the force of the first column 2 on the second pier to be offset on the second pier, and improving the stability of the first column 2 supported in the center of the second pier.

[0151] In some embodiments, the arm 1 is also movably connected to a beam moving vehicle 5. When the first column 2 is controlled to be in a retracted state, when the bridge erecting machine is in the first working state, the first running mechanism 35 and the second running mechanism 47 drive the arm 1 and the first column 2 to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column 3 is supported on the edge of the bridge deck. When the bridge erecting machine is in the second working state, the first running mechanism 35 drives the arm 1 and the first column 2 to move along the center line of the bridge deck to the second pier adjacent to the downstream of the bridge head, and the second column 3 is supported on the edge of the bridge deck. The method also includes:

[0152] The beam moving vehicle 5 is driven to move to a position at the rear end of the arm 1 close to the third column 4 .

[0153] Specifically, the beam moving vehicle 5 is moved to the rear end of the arm 1 before the arm 1 is extended out of the bridge head 6. When part of the arm 1 is extended out of the bridge head 6, the beam moving vehicle 5 at the rear end of the arm 1 can serve as a counterweight for the arm 1, thereby improving the stability of the arm 1 during movement and keeping the arm 1 supported on the bridge deck during the process of extending out of the bridge head.

[0154] In some embodiments, a beam erection step is also included, which includes: controlling the third column 4 to rotate relative to the arm 1 to a flipped state that fits the lower side of the arm 1, driving the transport vehicle to transport the beam piece between the second column 3 and the third column 4; controlling the beam lifting vehicle to lift the beam piece, and move it between two adjacent piers, and lowering the beam piece onto the two piers.

[0155] Specifically, after the bridge erection machine completes the through-hole erection in the first working state, the first column 2 is on the second pier downstream of the bridge head 6, the second column 3 is supported on the bridge deck, and the third column 4 is switched to a flipped state. The transport vehicle carries the beam piece through the lower side of the third column 4 in the flipped state, so that the beam piece can be connected to the beam-lifting mobile vehicle 5 located near the position of the third column 4 on the boom 1, so that the beam-lifting mobile vehicle 5 moves on the boom 1 and carries the beam piece to move along the boom 1, and the beam piece moves on the boom 1 between the second column 3 and the first column 2, so that the beam piece is placed on the first pier and the second pier of the bridge head 6, so that the beam piece, the first pier and the second bridge form a bridge structure.

[0156] After the bridge-building machine completes the through-hole erection in the second working state, the third column 4 is in a position close to the lower side of the arm 1, and the transport vehicle can carry the beam piece through the bottom of the third column 4 close to the arm 1, so that the beam piece can be connected to the beam-lifting mobile vehicle 5 near the position of the third column 4 of the arm 1.

[0157] When the bridge-building machine completes the hole-making step in the first working state, before the hole-passing step, the frame body is at the central position of the lateral moving part 44 along the transverse direction of the arm 1. In order to adjust the position of the arm 1 in the hole-passing step, the lateral moving part 44 and the frame body move relative to each other in the transverse direction of the arm 1, so that there is a spacing between the third bottom beam assembly 42 and the central position of the lateral moving part 44 in the transverse direction of the arm 1; in the beam-building step, when the third column 4 is in a position in contact with the arm 1, the second transverse driving device 46 drives the transverse moving part 44 to move relative to the frame body in the transverse direction of the arm 1, so that the frame body moves to the central position of the lateral moving part 44 along the transverse direction of the arm 1, so that the frame body and the transverse moving part 44 complete the resetting.

[0158] When the bridge-building machine completes the through-hole step in the second working state, when the third column 4 is in the position fitted against the arm 1, the second lateral driving device 46 drives the lateral moving part 44 to move laterally relative to the frame body in the arm 1, so that the frame body moves to the lateral central position of the lateral moving part 44 along the lateral direction of the arm 1, ensuring that the frame body is in the central position of the lateral moving part 44.

[0159] 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.

[0160] The above description is only a specific embodiment of the present disclosure, so that those skilled in the art can understand or implement the present disclosure. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present disclosure. Therefore, the present disclosure 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, characterized in that: It comprises a machine arm (1), a first column (2), a second column (3) and a third column (4); One end of the first column (2) is connected to the front end of the machine arm (1), and the first column (2) can be telescopic relative to the machine arm (1); One end of the second column (3) is provided with a moving device (34) slidably connected to the middle part of the machine arm (1), and the second column (3) is rotatably connected to the moving device (34), and the other end is provided with a first running mechanism (35); One end of the third column (4) is rotatably connected to the rear end of the machine arm (1), and the other end is provided with a second running mechanism (47); the third column (4) rotates relative to the machine arm (1) so that the bridge erecting machine switches between a first working state and a second working state, and the third column (4) is configured to be able to drive the rear end of the machine arm (1) to move horizontally relative to the third column (4) along the machine arm (1); In the first working state, the third column (4) is perpendicular to the arm (1), and the second column (3) and the third column (4) jointly drive the arm (1) to move; in the second working state, the third column (4) is attached to the lower side of the arm (1), and the second column (3) alone drives the arm (1) to move.

2. The bridge erecting machine according to claim 1, characterized in that: The first column (2) comprises a first top beam (21), a first bottom cross beam assembly (22) and a first telescopic cylinder (23); The first top beam (21) is mounted on the machine arm (1); the first bottom beam assembly (22) is slidably connected to the first top beam (21); the first telescopic oil cylinder (23) is arranged between the first top beam (21) and the first bottom beam assembly (22); two ends of the first telescopic oil cylinder (23) are respectively connected to the first top beam (21) and the first bottom beam assembly (22) to drive the first bottom beam assembly (22) to move closer to or farther from the first top beam (21).

3. The bridge erecting machine according to claim 2, characterized in that: The first column (2) is provided with a longitudinal moving mounting member (24) and a longitudinal driving member (25); the longitudinal moving mounting member (24) is slidably connected to the machine arm (1) and is connected to the first column (2); the longitudinal driving member (25) is mounted on the longitudinal moving mounting member (24), and the longitudinal driving member (25) is transmission-connected to the machine arm (1), so that the longitudinal moving mounting member (24) drives the first column (2) to slide relative to the machine arm (1) along the longitudinal direction of the machine arm (1) under the drive of the longitudinal driving member (25).

4. The bridge erecting machine according to claim 1, characterized in that: The second column (3) comprises a second top beam (31), a second bottom cross beam assembly (32) and a second lifting cylinder (33); The second top beam (31) is arranged on the upper side of the machine arm (1), and the moving device (34) is installed on the lower side of the second top beam (31); The moving device (34) is rotatably connected to the second top beam (31) and is connected to the machine arm (1); the second bottom cross beam assembly (32) is arranged on the lower side of the machine arm (1), and the second bottom cross beam assembly (32) is movably connected to the second top beam (31); The second lifting cylinder (33) is connected between the second top beam (31) and the second bottom cross beam assembly (32), so that the second lifting cylinder (33) drives the second bottom cross beam assembly (32) and the second top beam (31) to move closer to or farther from each other; A working channel for the beam piece and the machine arm (1) to pass through is formed between the second top beam (31) and the second bottom cross beam assembly (32).

5. The bridge erecting machine according to claim 4, characterized in that: The second top beam (31) comprises a top beam body (311) and a load-sharing beam (312); the moving device (34) comprises a device body (341), a moving driving unit (342), a hanging seat (343) and a first lateral driving device (344); The two ends of the top beam body (311) respectively extend to the two sides of the machine arm (1) in the transverse direction of the machine arm (1); The load-sharing beam (312) is slidably connected to the top beam body (311), the first transverse driving device (344) is arranged between the load-sharing beam (312) and the top beam body (311), and two ends of the first transverse driving device (344) are respectively connected to the load-sharing beam (312) and the top beam body (311), so that the load-sharing beam (312) can slide relative to the top beam body (311) along the extension direction of the top beam body (311) under the drive of the first transverse driving device (344); The device body (341) is slidably connected to the machine arm (1), the moving drive unit (342) is connected to the device body (341), and the moving drive unit (342) is transmission-connected to the machine arm (1), so that the moving drive unit (342) drives the device body (341) to move relative to the machine arm (1) along the longitudinal direction of the machine arm (1); The suspension seat (343) is connected to the upper side of the device body (341) and is rotatably connected to the load-sharing beam (312).

6. The bridge erecting machine according to claim 1, characterized in that: The third column (4) comprises a frame body, a lateral moving part (44), a rotation driving member (45) and a second lateral driving device (46); One end of the frame body is rotatably connected to the machine arm (1), and the other end is slidably connected to the transverse moving part (44); The rotating driving member (45) is connected between the frame body and the machine arm (1), and the rotating driving member (45) drives the frame body to rotate relative to the machine arm (1); The second lateral driving device (46) is connected between the frame body and the lateral moving part (44) to drive the frame body to move laterally along the machine arm (1) relative to the lateral moving part (44); The second running mechanism (47) is connected to a side of the transverse moving portion (44) away from the frame body.

7. The bridge erecting machine according to claim 6, characterized in that: The frame body comprises a third top beam (41), a third bottom cross beam assembly (42) and a third lifting cylinder (43); The third top beam (41) is rotatably connected to the machine arm (1), and the rotation driving member (45) is installed between the machine arm (1) and the third top beam (41); The third bottom cross beam assembly (42) is movably connected to the third top beam (41), and the third lifting cylinder (43) is connected between the third top beam (41) and the third bottom cross beam assembly (42) to drive the third bottom cross beam assembly (42) to approach or move away from the third top beam (41); The transverse moving part (44) is slidably connected to a side of the third bottom cross beam assembly (42) away from the third top beam (41), and the second transverse driving device (46) is connected between the third bottom cross beam assembly (42) and the transverse moving part (44) to drive the third bottom cross beam assembly (42) to move transversely relative to the transverse moving part (44) along the machine arm (1).

8. The bridge erecting machine according to claim 1, characterized in that: The first running mechanism (35) comprises a first running wheel set, a suspension system and legs; The first running wheel group is arranged at the lower side of the second column (3) and is movably connected to the second column (3) through the suspension system, so that the first running wheel group can switch between a supporting position supported on the bridge deck and a retracted position retracted to the second column (3); When the first running wheel group is in the retracted position, the legs are supported on the bridge deck, and when the first running wheel group is in the supporting position, the legs are spaced apart from the bridge deck; And / or, the second running mechanism (47) comprises a second running wheel set and a motor, the second running wheel set and the motor are connected to the third column (4), and the output end of the motor is connected to the second running wheel set so that the motor drives the second running wheel set to roll.

9. The bridge erecting machine according to claim 1, characterized in that: A beam lifting moving vehicle (5) for lifting beam pieces is movably arranged on the machine arm (1); the beam lifting moving vehicle (5) can move relative to the machine arm (1) along the longitudinal direction of the machine arm (1).

10. A method for erecting beams through a hole of a bridge erecting machine, characterized in that: The method comprises a via hole step, wherein the via hole step comprises: The bridge erection machine is placed on the bridge deck of the bridge head (6) and is in a first working state, the second column (3) and the third column (4) support the machine arm (1) on the center line of the bridge deck, and the first running mechanism (35) and the second running mechanism (47) drive the machine arm (1) to move along the center line of the bridge deck on the bridge deck to a position where the first column (2) is opposite to the first bridge pier at the edge of the bridge head; The first column (2) is supported at the central position of the first pier at the edge of the bridge head (6), the second column (3) is supported on the center line of the bridge deck, when the bridge erecting machine is in the first working state, the third column (4) is supported on the bridge deck, and when the bridge erecting machine is in the second working state, the third column (4) is attached to the machine arm (1) and is spaced from the bridge deck; The first column (2) is controlled to be in a retracted state. When the bridge erecting machine is in a first working state, the first running mechanism (35) and the second running mechanism (47) synchronously drive the arm (1) and the first column (2) to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column (3) is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in a second working state, the first running mechanism (35) drives the arm (1) and the first column (2) to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column (3) is supported at the edge center line position of the bridge deck; When the bridge erection machine is in a first working state, the third column (4) drives the rear end of the machine arm (1) to move relative to the bridge deck along the lateral direction of the machine arm (1), so that the machine arm (1) and the first column (2) are rotated relative to the second column (3) to the central position of the second bridge pier; when the bridge erection machine is in a second working state, the moving device (34) drives the machine arm (1) and the first column (2) to rotate relative to the second column (3) to the central position of the second bridge pier; The first column (2) is lifted up and supported on the second bridge pier to complete the hole-passing operation.

11. The method for erecting beams through a hole of a bridge erecting machine according to claim 10, characterized in that: The arm (1) is also movably connected to a beam crane moving vehicle (5). When the first column (2) is controlled to be in a retracted state, when the bridge erecting machine is in a first working state, the first running mechanism (35) and the second running mechanism (47) synchronously drive the arm (1) and the first column (2) to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column (3) is supported at the edge center line position of the bridge deck. When the bridge erecting machine is in a second working state, the first running mechanism (35) drives the arm (1) and the first column (2) to move along the center line of the bridge deck to the second bridge pier adjacent to the downstream of the bridge head, and the second column (3) is supported at the edge center line position of the bridge deck, and the method further includes: The beam moving vehicle (5) is driven to move to a position at the rear end of the arm (1) close to the third column (4).

12. The method for erecting beams through a hole of a bridge erecting machine according to claim 11, characterized in that: When the bridge erecting machine is in the first working state, the third column (4) is controlled to rotate relative to the machine arm (1) to a flipping state in contact with the lower side of the machine arm (1), and the transport vehicle is driven to transport the beam piece between the second column (3) and the third column (4). When the bridge erecting machine is in the second working state, the transport vehicle is driven to transport the beam piece between the second column (3) and the third column (4); The beam lifting and moving vehicle is controlled to lift the beam piece, and move it between the two adjacent bridge piers, and lower the beam piece onto the two bridge piers.

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