Walking device and walking method of continuous beam cantilever bridge fabrication machine

Abstract

The invention provides a walking device of a continuous beam cantilever bridge fabrication machine, which belongs to the technical field of bridge fabrication machines and comprises a walking beam and a main beam. The two riding wheel units are sequentially arranged in the length direction of the walking beam and abut against the lower surface of the main beam; one end of each hook wheel unit is connected with a rotating shaft, the rotating shafts are rotationally arranged in the walking beam, and the axial direction of the rotating shafts is the same as the length direction of the walking beam; the other ends of the two hook wheel units extend upwards and are located on the two sides of the main beam respectively. A locking key is fixedly arranged on each rotating shaft; the locking block is arranged on the two rotating shafts in a sliding and sleeving mode, and a locking groove is formed in the locking block; and the locking block is connected with a linear driving piece for driving the locking block to slide. According to the walking device of the continuous beam cantilever bridge fabrication machine, the main beam can be conveniently installed on the walking beam. The invention further provides a walking method of the continuous beam cantilever bridge fabrication machine.

Description

Technical Field

[0001] The invention belongs to the technical field of bridge-building machines, and more specifically, relates to a traveling device and a traveling method of a continuous beam cantilever bridge-building machine. Background Art

[0002] The continuous beam cantilever bridge-building machine is a special equipment used to build large-span continuous beam bridges. Its basic principle is to use the cast beam sections as supports, and to cantilever cast new beam sections along the length of the bridge, extending them section by section, and finally completing the construction of the continuous beam.

[0003] The bridge-building machine is mainly composed of a main truss, a travel system, a formwork system and a working platform. The travel system of the bridge-building machine includes a main beam fixedly connected to the main truss of the bridge-building machine, a travel track laid on the top surface of the cast beam section, and travel wheels rotatably arranged on the travel track. Among them, wing plates are fixedly arranged on the two long sides of the main beam, and the travel wheels are installed on the travel track and are arranged in two layers, with a gap formed between the upper and lower travel wheels for accommodating the main beam wing plates.

[0004] Due to the small gap, when the main beam is lifted and installed on the walking track, it is not easy for the main beam to be aligned with the gap and translated into the gap, which makes the installation of the main beam difficult. Summary of the invention

[0005] The object of the present invention is to provide a traveling device and a traveling method for a continuous beam cantilever bridge-building machine, aiming at facilitating the installation of a main beam.

[0006] In a first aspect, the present invention provides a walking device of a continuous beam cantilever bridge-building machine, comprising a walking beam laid along the length direction of the bridge, and a main beam slidably arranged along the length direction of the walking beam, wherein wing plates are fixedly arranged on both long sides of the main beam, and further comprising: Two supporting wheel units are arranged in sequence along the length direction of the walking beam and abut against the lower surface of the main beam; Two hook wheel units, one end of each hook wheel unit is connected to a rotating shaft, the rotating shaft is rotatably arranged in the walking beam, and the axial direction is the same as the length direction of the walking beam; the other ends of the two hook wheel units extend upward and are respectively located on both sides of the main beam; a locking key is fixedly arranged on each rotating shaft; and A locking block is slidably sleeved on the two rotating shafts, and a locking groove is provided on the locking block; the locking block is connected to a linear driving member for driving the locking block to slide; The two hook wheel units have an open state in which they are far away from each other and a closed state in which they are close to each other. In the open state, the extended ends of the hook wheel units avoid the main beam, and the main beam is placed on the supporting wheel unit. In the closed state, the locking block slides until the locking key is inserted into the locking groove, and the protruding end of the hook unit abuts against the upper surface of the wing plate, and the hook unit and the supporting wheel unit form upper and lower direction limits for the main beam.

[0007] In a possible implementation, the continuous beam cantilever bridge-building machine walking device further includes: A driving unit is arranged on the walking beam for lifting; a linkage rack extending in the vertical direction is arranged on the driving unit; a linkage gear suitable for meshing with the linkage rack is fixedly arranged on the rotating shaft; Wherein, a driving rack suitable for connecting with the driving unit is fixedly arranged on the lower surface of the main beam; in the open state, the driving unit descends and avoids the driving rack; In the closed state, the driving unit rises and is connected to the driving rack, and the driving unit drives the main beam to move along the length direction of the walking beam.

[0008] In a possible implementation, the driving unit includes: A driving frame is vertically slidably arranged on the walking beam, and the driving frame is fixedly connected to the linkage rack; A driving gear, rotatably disposed on the driving frame and adapted to mesh with the driving rack; The hydraulic motor is fixedly arranged on the driving frame, and the output end is connected with the driving gear.

[0009] In a possible implementation, in the closed state, the locking block is located below the driving unit and abuts against a lower surface of the driving unit.

[0010] In a possible implementation, the main beam is connected to a support leg, and a support leg cylinder is vertically fixed on the support leg; When the outrigger oil cylinder is extended and abuts against the upper surface of the bridge, the main beam rises to allow the walking beam to detach from the bridge.

[0011] In a possible implementation, a positioning cylinder is vertically fixed on the walking beam, a spherical positioning block is fixed on the telescopic end of the positioning cylinder, and a positioning groove suitable for plugging with the positioning block is opened on the lower surface of the main beam; The positioning block is inserted into the positioning groove so that the through hole on the main beam for the anchor rod to pass through is aligned with the reserved hole on the bridge for the anchor rod to pass through.

[0012] In a possible implementation, the supporting wheel unit includes: A supporting wheel frame body is fixedly arranged on the upper surface of the walking beam; A supporting wheel, rotatably arranged on the supporting wheel frame; The wheel rim is fixedly arranged on the supporting wheel and abuts against the outer side surface of the wing plate.

[0013] In a possible implementation, the hook wheel unit includes: Two hook wheel frames are respectively fixedly arranged at two ends of the rotating shaft; Two groups of hook wheels are correspondingly arranged on the two hook wheel frames, and the number of hook wheels in each group is at least two.

[0014] In a possible implementation, the linear drive member is a linear cylinder fixedly disposed on the walking beam, the telescopic direction of the linear cylinder is the same as the axial direction of the rotating shaft, and the telescopic end of the linear cylinder is fixedly connected to the locking block.

[0015] Compared with the prior art, the present invention provides a continuous beam cantilever bridge-building machine travel device, which has the following beneficial effects: when installing the main beam, first rotate the two hook wheel units in a direction away from each other to an open state. At this time, the main beam can be conveniently placed on the supporting roller unit from top to bottom, without the need to accurately align the narrow gap as in the traditional way, which greatly reduces the difficulty of installation. After the main beam is placed on the supporting roller unit, the locking block is driven to slide on the two rotating shafts by a linear drive member. The locking key on the rotating shaft will be inserted into the locking groove of the locking block. At this time, the hook wheel unit is against the upper surface of the wing plate, and together with the supporting roller unit, it forms a limit in the up and down directions for the main beam, thereby ensuring that the position of the main beam is stable after installation, and will not be displaced in the up and down directions due to various external forces during the subsequent construction process, thereby ensuring the structural stability of the entire bridge-building machine travel device and providing a reliable foundation for subsequent construction operations.

[0016] In a second aspect, the present invention further provides a method for traveling a continuous beam cantilever bridge-building machine, which is applied to the above-mentioned traveling device of the continuous beam cantilever bridge-building machine, and comprises the following steps: Step 1, releasing the anchoring of the walking beam and the bridge; Step 2: moving the walking beam to a preset position of the newly cast beam section and anchoring it to the bridge; Step 3, releasing the anchoring of the main beam and the bridge; Step 4: Move the main beam to the preset position of the newly cast beam section and anchor it to the bridge. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of a traveling device of a continuous beam cantilever bridge-building machine provided by an embodiment of the present invention installed on a bridge; Figure 2 A schematic diagram of the overall structure of a traveling device of a continuous beam cantilever bridge-building machine provided in an embodiment of the present invention; Figure 3 A schematic diagram of two hook wheel units provided in an embodiment of the present invention rotating to an open state; Figure 4 A schematic diagram of two hook wheel units provided in an embodiment of the present invention rotating to a closed state; Figure 5 A cross-sectional view of a walking beam provided in an embodiment of the present invention; Figure 6 for Figure 2 Schematic diagram of the enlarged structure of part A.

[0019] In the figure: 1. bridge; 2. walking beam; 21. positioning cylinder; 22. positioning block; 3. main beam; 31. wing plate; 32. outrigger; 33. outrigger cylinder; 34. positioning groove; 4. supporting roller unit; 41. supporting roller frame; 42. supporting roller; 43. wheel rim; 5. hook wheel unit; 51. rotating shaft; 511. locking key; 52. linkage gear; 53. hook wheel frame; 54. hook wheel; 6. locking block; 61. locking groove; 62. linear cylinder; 7. driving unit; 71. driving rack; 72. linkage rack; 73. driving frame; 74. driving gear; 75. hydraulic motor. DETAILED DESCRIPTION

[0020] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0021] See also Figure 1 and Figure 2, a traveling device of a continuous beam cantilever bridge-building machine provided by the present invention is now described. The traveling device of the continuous beam cantilever bridge-building machine includes a traveling beam 2 laid along the length direction of the bridge 1, and a main beam 3 slidingly arranged along the length direction of the traveling beam 2, and wing plates 31 are fixedly arranged on both long sides of the main beam 3. The length direction of the traveling beam 2 is the same as the length direction of the bridge 1, and the length direction of the main beam 3 is the same as the length direction of the traveling beam 2. The main beam 3 is a square hollow steel structure, and the wing plates 31 extend along the length direction of the main beam 3. There are four wing plates 31, and the four wing plates 31 are respectively arranged at the four corners of the main beam 3.

[0022] See also Figure 2 , Figure 3 and Figure 4 The walking device of the continuous beam cantilever bridge-building machine also includes two supporting roller units 4, two hook wheel units 5 and a locking block 6. The two supporting roller units 4 are arranged in sequence along the length direction of the walking beam 2 and abut against the lower surface of the main beam 3. One end of each of the two hook wheel units 5 is connected to a rotating shaft 51, and the rotating shaft 51 is rotatably arranged in the walking beam 2, and the axial direction is the same as the length direction of the walking beam 2. The other ends of the two hook wheel units 5 extend upward and are respectively located on both sides of the main beam 3. A locking key 511 is fixedly arranged on each rotating shaft 51. The locking block 6 is slidably sleeved on the two rotating shafts 51, and a locking groove 61 is provided on the locking block 6. The locking block 6 is connected to a linear drive member that drives it to slide.

[0023] See also Figure 2 , Figure 3 and Figure 4 The two hook wheel units 5 have an open state in which they are far away from each other and a closed state in which they are close to each other. In the open state, the extended end of the hook wheel unit 5 avoids the main beam 3, and the main beam 3 is placed on the supporting wheel unit 4. In the closed state, the locking block 6 slides until the locking key 511 is inserted into the locking groove 61, and the extended end of the hook wheel unit 5 abuts against the upper surface of the wing plate 31, and the hook wheel unit 5 and the supporting wheel unit 4 limit the main beam 3 in the upper and lower directions.

[0024] Specifically, before installation, the hook wheel unit 5 is first rotated to an open state where they are away from each other. At this time, the protruding end of the hook wheel unit 5 avoids the main beam 3, so that the main beam 3 can be easily placed on the supporting wheel unit 4 from top to bottom, thereby avoiding the problem in the traditional method that the main beam 3 is difficult to align and translate when it is lifted and installed due to the small gap between the upper running wheels and the lower running wheels, thereby greatly reducing the difficulty of installing the main beam 3.

[0025] After installation, the hook wheel unit 5 is rotated toward the direction close to the main beam 3, so that the protruding end of the hook wheel unit 5 is against the upper surface of the wing plate 31, and together with the supporting wheel unit 4, it forms a limit for the main beam 3 in the upper and lower directions, ensuring the firmness of the main beam 3 on the walking beam 2.

[0026] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The walking device of the continuous beam cantilever bridge-building machine also includes a driving unit 7. The driving unit 7 is lifted and lowered on the walking beam 2. The driving unit 7 is provided with a linkage rack 72 extending in the vertical direction. A linkage gear 52 suitable for meshing with the linkage rack 72 is fixedly provided on the rotating shaft 51. The linkage gear 52 is located on the inner side of the linkage rack. A driving rack 71 suitable for connecting with the driving unit 7 is fixedly provided on the lower surface of the main beam 3. In the open state, the driving unit 7 descends and avoids the driving rack 71. In the closed state, the driving unit 7 rises and is connected to the driving rack 71, and the driving unit 7 drives the main beam 3 to move along the length direction of the walking beam 2.

[0027] Specifically, when installing the main beam 3, the two hook wheel units 5 are rotated in a direction away from each other, so that the rotating shaft 51 drives the linkage gear 52 to rotate, and the linkage gear 52 drives the linkage rack 72 to descend, thereby descending the driving unit 7. The descent of the driving unit 7 can ensure that when the main beam 3 is placed on the supporting wheel unit 4, the driving rack 71 will not collide with the driving unit 7, thereby protecting the driving rack 71 and the driving unit 7, and making the installation of the main beam 3 smoother and reducing obstacles.

[0028] After the main beam 3 is installed, rotating the two hook wheel units 5 in a direction toward each other can drive the driving unit 7 to rise, so that the driving unit 7 is connected to the driving rack 71 on the main beam 3, and then the main beam 3 is driven by the driving unit 7 to move along the length direction of the walking beam 2.

[0029] In some embodiments, see Figure 3 , Figure 4 and Figure 5 The driving unit 7 includes a driving frame 73, a driving gear 74 and a hydraulic motor 75. The driving frame 73 is vertically slidably arranged on the walking beam 2. A notch is provided on the driving frame 73 in the vertical direction, and the rotating shaft 51 passes through the notch. The driving frame 73 is fixedly connected to the linkage rack 72. The driving gear 74 is rotatably arranged on the driving frame 73 and is suitable for meshing with the driving rack 71. The hydraulic motor 75 is fixedly arranged on the driving frame 73, and the output end is connected to the driving gear 74.

[0030] When the hook wheel unit 5 rotates, the linkage gear 52 is driven to rotate through the rotating shaft 51, so that the linkage gear 52 drives the linkage rack 72 to move up and down. When the linkage rack 72 is lifted or lowered, it can drive the driving frame 73 fixed thereto to lift or lower, thereby realizing the disengagement and engagement between the driving gear 74 and the driving rack 71.

[0031] Compared with other types of power equipment, the hydraulic motor 75 can have smaller dimensions under the same power output requirement, and can provide sufficient power in a limited space, thereby reducing space occupancy while ensuring the driving effect on the main beam 3.

[0032] In some embodiments, see Figure 5 In the closed state, the locking block 6 is located below the driving unit 7 and abuts against the lower surface of the driving unit 7. Specifically, the locking block 6 is supported on the lower surface of the driving frame 73. Through the mutual abutment between the locking block 6 and the driving frame 73, a mutual support relationship is formed in the vertical direction, which enhances the stability of the overall structure, so that the driving unit 7 is always kept in the correct working position during use, ensuring the safety and continuity of construction.

[0033] In some embodiments, see Figure 2 , the main beam 3 is connected with a leg 32, and a leg cylinder 33 is vertically fixed on the leg 32. When the leg cylinder 33 extends and abuts against the upper surface of the bridge 1, the main beam 3 rises to make the walking beam 2 separate from the bridge 1.

[0034] When the bridge-building machine needs to be moved, the position of the walking beam 2 needs to be adjusted first. The outrigger cylinders 33 on the outriggers 32 extend and rest against the bridge deck of the bridge 1, which can support the main beam 3 and ensure the stability of the main beam 3 on the bridge 1. After the anchoring between the walking beam 2 and the bridge 1 is released and the anchoring cylinders on the main beam 3 are retracted, the outrigger cylinders 33 continue to extend to drive the main beam 3 to rise, so that the main beam 3 drives the walking beam 2 to rise and separate from the bridge deck of the bridge 1, ensuring that the walking beam 2 does not contact the bridge deck of the bridge 1 when moving, making the walking beam 2 move more smoothly.

[0035] In some embodiments, see Figure 6 A positioning cylinder 21 is vertically fixed on the walking beam 2, a spherical positioning block 22 is fixed on the telescopic end of the positioning cylinder 21, and a positioning groove 34 suitable for plugging with the positioning block 22 is opened on the lower surface of the main beam 3. The positioning block 22 is plugged into the positioning groove 34 so that the through hole on the main beam 3 for the anchor rod to pass through is aligned with the reserved hole on the bridge 1 for the anchor rod to pass through.

[0036] After the main beam 3 is installed on the walking beam 2, the main beam 3 needs to be anchored to the bridge 1. At this time, the positioning cylinder 21 extends, and in the process of inserting the positioning block 22 into the positioning groove 34, the positioning block 22 will gradually push the main beam 3 to move, thereby adjusting the position of the main beam 3 on the walking beam 2, so that the through hole on the main beam 3 for the anchor rod to pass through can be accurately aligned with the reserved hole on the bridge 1 for the anchor rod to pass through, avoiding problems such as difficult installation of the anchor rod or loose connection caused by inaccurate manual positioning adjustment.

[0037] In some embodiments, see Figure 3 The roller unit 4 includes a roller frame 41, a roller 42 and a wheel rim 43. The roller frame 41 is fixedly arranged on the upper surface of the walking beam 2. The roller 42 is rotatably arranged on the roller frame 41. The wheel rim 43 is fixedly arranged on the roller 42 and abuts against the outer side surface of the wing plate 31.

[0038] The supporting roller frame 41 is fixedly mounted on the walking beam 2, providing a mounting base for the supporting roller 42. The supporting roller 42 is rotatably mounted on the supporting roller frame 41, and can effectively support the main beam 3, reduce the friction of the main beam 3 during the walking process, and enable the main beam 3 to move smoothly along the walking beam 2. At the same time, the rim 43 is fixedly mounted on the outer side of the supporting roller 42, and abuts against the outer side of the wing plate 31, thereby limiting the main beam 3 laterally. When the main beam 3 is subjected to lateral forces such as wind force, accidental collisions during construction, etc., the rim 43 can prevent the main beam 3 from lateral displacement, ensuring that the main beam 3 always remains on the correct walking track, thereby improving the stability and safety of the main beam 3 during walking.

[0039] In some embodiments, see Figure 3 The hook wheel unit 5 includes two hook wheel frames 53 and two groups of hook wheels 54. The two hook wheel frames 53 are respectively fixedly arranged at both ends of the rotating shaft 51. The two groups of hook wheels 54 are correspondingly arranged on the two hook wheel frames 53, and the number of each group of hook wheels 54 is at least two.

[0040] When the hook wheel unit 5 is in the closed state and against the upper surface of the wing plate 31, the multiple hook wheels 54 can evenly distribute the pressure and more firmly clamp the wing plate 31 to prevent the main beam 3 from jumping up and down or detaching during the walking process. At the same time, the presence of multiple hook wheels 54 also increases the redundancy of the hook wheel unit 5. Even if individual hook wheels 54 are worn or damaged, other hook wheels 54 can continue to work, ensuring the normal operation of the walking device and improving the reliability and stability of the equipment. When the driving unit 7 drives the main beam 3 to move, the hook wheel 54 plays a limiting role on the wing plate 31, ensuring that the main beam 3 can stably move along the walking beam 2, thereby improving the reliability of the entire walking device.

[0041] In some embodiments, see Figure 3 and Figure 4 The linear drive member is a linear cylinder 62 fixedly arranged on the walking beam 2. The telescopic direction of the linear cylinder 62 is the same as the axial direction of the rotating shaft 51. The telescopic end of the linear cylinder 62 is fixedly connected to the locking block 6. As a common hydraulic actuator, the linear cylinder 62 is convenient to be integrated with the hydraulic control system of the entire continuous beam cantilever bridge machine. Through the connection of the hydraulic pipeline and the control system, the remote control and automatic operation of the linear cylinder 62 can be realized.

[0042] In summary, compared with the prior art, the present invention provides a continuous beam cantilever bridge-building machine travel device. When installing the main beam 3, the two hook wheel units 5 are first rotated in a direction away from each other to an open state. At this time, the main beam 3 can be conveniently placed on the supporting roller unit 4 from top to bottom, without the need to accurately align the narrow gap as in the traditional way, which greatly reduces the difficulty of installation. After the main beam 3 is placed on the supporting roller unit 4, the locking block 6 is driven to slide on the two rotating shafts 51 by a linear drive member. The locking key 511 on the rotating shaft 51 will be inserted into the locking groove 61 of the locking block 6. At this time, the hook wheel unit 5 is against the upper surface of the wing plate 31, and together with the supporting roller unit 4, it forms a limit in the up and down direction for the main beam, thereby ensuring that the position of the main beam 3 is stable after installation, and will not be displaced in the up and down direction due to various external forces during the subsequent construction process, ensuring the structural stability of the entire bridge-building machine travel device, and providing a reliable foundation for subsequent construction operations.

[0043] The embodiment of the present invention also discloses a method for traveling a continuous beam cantilever bridge-building machine, comprising the following operating steps: Step 1: Control the outrigger oil cylinder 33 to extend and abut against the upper surface of the bridge 1, and then release the anchoring between the walking beam 2 and the bridge 1.

[0044] Step 2: Control the anchor cylinder on the main beam 3 to retract so that the outrigger cylinder 33 can continue to lift the main beam 3 upward until the walking beam 2 leaves the upper surface of the bridge 1.

[0045] Step 3: Start the hydraulic motor 75, and the driving gear 74 rotates to drive the walking beam 2 to move along the driving rack 71 until the walking beam 2 moves to the preset position of the newly cast beam section, and then turn off the hydraulic motor 75.

[0046] Step 4: Control the outrigger oil cylinder 33 to retract until the walking beam 2 is placed at the preset position of the newly cast beam section, stop the contraction of the outrigger oil cylinder 33, and then anchor the walking beam 2 on the bridge 1.

[0047] Step 5: Control the outrigger cylinder 33 to be fully retracted, and then release the anchoring between the main beam 3 and the bridge 1.

[0048] Step 6: Start the hydraulic motor 75, drive the gear 74 to rotate and drive the main beam 3 to move along the length direction of the walking beam 2 until the main beam 3 is moved to the preset position of the newly cast beam section. Control the positioning cylinder 21 to extend, and insert the positioning block 22 into the positioning groove 34, so that the through hole on the main beam 3 for the anchor rod to pass through is aligned with the reserved hole on the bridge 1 for the anchor rod to pass through, and then anchor the main beam 3 on the bridge 1.

[0049] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A walking device of a continuous beam cantilever bridge-building machine, comprising a walking beam (2) laid along the length direction of a bridge (1), and a main beam (3) slidably arranged along the length direction of the walking beam (2), wherein wing plates (31) are fixedly arranged on both long sides of the main beam (3), characterized in that: Also includes: Two supporting wheel units (4) are arranged in sequence along the length direction of the walking beam (2) and abut against the lower surface of the main beam (3); Two hook wheel units (5), one end of each hook wheel unit (5) is connected to a rotating shaft (51), the rotating shaft (51) is rotatably arranged in the walking beam (2), and the axial direction is the same as the length direction of the walking beam (2); the other ends of the two hook wheel units (5) extend upward and are respectively located on both sides of the main beam (3); a locking key (511) is fixedly arranged on each rotating shaft (51); and A locking block (6) is slidably sleeved on the two rotating shafts (51), and a locking groove (61) is provided on the locking block (6); the locking block (6) is connected to a linear driving member for driving the locking block to slide; The two hook wheel units (5) have an open state in which they are separated from each other and a closed state in which they are close to each other. In the open state, the extended ends of the hook wheel units (5) avoid the main beam (3), and the main beam (3) is placed on the supporting wheel unit (4); In the closed state, the locking block (6) slides to the locking key (511) and is inserted into the locking groove (61), and the protruding end of the hook wheel unit (5) abuts against the upper surface of the wing plate (31), and the hook wheel unit (5) and the supporting wheel unit (4) form a vertical limit for the main beam (3).

2. A traveling device for a continuous beam cantilever bridge-building machine as claimed in claim 1, characterized in that: The continuous beam cantilever bridge-building machine walking device also includes: A driving unit (7) is arranged on the walking beam (2) for lifting; the driving unit (7) is provided with a linkage rack (72) extending in a vertical direction; and a linkage gear (52) suitable for meshing with the linkage rack (72) is fixedly provided on the rotating shaft (51); Wherein, a driving rack (71) suitable for connecting to the driving unit (7) is fixedly arranged on the lower surface of the main beam (3); in the open state, the driving unit (7) descends and avoids the driving rack (71); In the closed state, the driving unit (7) rises and is connected to the driving rack (71), and the driving unit (7) drives the main beam (3) to move along the length direction of the walking beam (2).

3. A traveling device for a continuous beam cantilever bridge-building machine as claimed in claim 2, characterized in that: The driving unit (7) comprises: A driving frame (73) is vertically slidably arranged on the walking beam (2), and the driving frame (73) is fixedly connected to the linkage rack (72); A driving gear (74) rotatably disposed on the driving frame (73) and adapted to mesh with the driving rack (71); The hydraulic motor (75) is fixedly mounted on the driving frame (73), and an output end thereof is connected to the driving gear (74).

4. A traveling device for a continuous beam cantilever bridge-building machine as claimed in claim 2, characterized in that: In the closed state, the locking block (6) is located below the driving unit (7) and abuts against the lower surface of the driving unit (7).

5. The traveling device of a continuous beam cantilever bridge-building machine according to claim 2, characterized in that: The main beam (3) is connected to a support leg (32), and a support leg oil cylinder (33) is vertically fixedly arranged on the support leg (32); When the outrigger oil cylinder (33) extends out and abuts against the upper surface of the bridge (1), the main beam (3) rises to allow the walking beam (2) to detach from the bridge (1).

6. The traveling device of a continuous beam cantilever bridge-building machine according to claim 1, characterized in that: A positioning cylinder (21) is vertically fixedly disposed on the walking beam (2), a spherical positioning block (22) is fixedly disposed at the telescopic end of the positioning cylinder (21), and a positioning groove (34) suitable for plugging into the positioning block (22) is formed on the lower surface of the main beam (3); The positioning block (22) is inserted into the positioning groove (34) so ​​that the through hole on the main beam (3) through which the anchor rod passes is aligned with the reserved hole on the bridge (1) through which the anchor rod passes.

7. The traveling device of a continuous beam cantilever bridge-building machine according to claim 1, characterized in that: The supporting wheel unit (4) comprises: A supporting wheel frame (41) is fixedly arranged on the upper surface of the walking beam (2); A supporting wheel (42) rotatably disposed on the supporting wheel frame (41); The wheel rim (43) is fixedly arranged on the supporting wheel (42) and abuts against the outer side surface of the wing plate (31).

8. The traveling device of a continuous beam cantilever bridge-building machine according to claim 1, characterized in that: The hook wheel unit (5) comprises: Two hook wheel frames (53) are respectively fixedly arranged at two ends of the rotating shaft (51); Two groups of hook wheels (54) are correspondingly arranged on the two hook wheel frames (53), and the number of hook wheels (54) in each group is at least two.

9. The traveling device of a continuous beam cantilever bridge-building machine according to claim 1, characterized in that: The linear drive component is a linear oil cylinder (62) fixedly arranged on the walking beam (2); the telescopic direction of the linear oil cylinder (62) is the same as the axial direction of the rotating shaft (51); and the telescopic end of the linear oil cylinder (62) is fixedly connected to the locking block (6).

10. A method for traveling a continuous beam cantilever bridge-building machine, applied to the traveling device of the continuous beam cantilever bridge-building machine as claimed in any one of claims 1 to 9, characterized in that: The following steps are involved: Step 1: releasing the anchoring of the walking beam (2) and the bridge (1); Step 2: moving the walking beam (2) to a preset position of the newly cast beam section and anchoring it to the bridge (1); Step 3: releasing the anchoring of the main beam (3) and the bridge (1); Step 4: Move the main beam (3) to a preset position of the newly cast beam section and anchor it to the bridge (1).

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