Bridge fabrication machine

Abstract

The utility model discloses a bridge fabrication machine which comprises a main beam, a driving wheel supporting device and a stabilizing device, the driving wheel supporting device is connected with the main beam, the stabilizing device comprises a cross beam and two reverse hook beams connected to the two ends of the cross beam, each reverse hook beam comprises a connecting beam body and a contact wheel body, and the connecting beam body is of an L-shaped structure. The connecting beam body comprises a first section and a second section which are connected with each other, the end, away from the second section, of the first section is connected with the cross beam, the contact wheel body comprises a mounting block, a connecting block, a bent base block and a plurality of rotating wheels, the mounting block is rotatably mounted on the second section, and the two ends of the connecting block are connected with the bent base block and the mounting block respectively; the bending base block is bent in the direction away from the box girder, the bending direction of the bending base block and the transverse direction of the box girder are located on the same plane, and the multiple rotating wheels are rotationally installed on the top face, away from the connecting block, of the bending base block. According to the utility model, the problems of jamming, deviation, jamming and the like possibly occurring in the prior art can be effectively avoided.

Description

Technical Field

[0001] This utility model relates to the field of bridge-building machinery technology, and more specifically, to a bridge-building machine. Background Technology

[0002] In the field of bridge construction, based on the consideration of optimizing stress distribution and improving structural stiffness, the bottom surface of the cantilever of the box girder (i.e. the lower surface where the cantilever connects to the web of the box girder) is set to an arc shape.

[0003] Among the existing related technologies, Chinese patent document with announcement number CN114673098B discloses a self-propelled cantilever bridge building machine, which can effectively avoid the repeated installation and disassembly process of anchoring steel bars of traveling beams, and can achieve autonomous walking, thereby improving the degree of automation and safety.

[0004] However, when applied to a boom with a curved bottom surface, its rear hook wheel cannot travel stably on the curved bottom surface of the boom, which may cause problems such as jamming, deviation, or even jamming. Utility Model Content

[0005] The purpose of this invention is to provide a bridge-building machine that solves the problems of jamming, deviation, and stuckness that may occur in the existing related technologies, where the rear hook wheel cannot move stably on the arc-shaped bottom surface of the boom.

[0006] This utility model is achieved through the following technical solution:

[0007] A bridge-building machine includes a main beam, a moving wheel support device, and a stabilizing device. The moving wheel support device is connected to the main beam and is used to move along the longitudinal extension direction of the bridge on the box girder, so that the main beam moves along the longitudinal extension direction of the box girder. The stabilizing device includes a crossbeam and two anti-hook beams connected to both ends of the crossbeam.

[0008] The anti-hook beam includes a connecting beam body and contact wheel bodies. The connecting beam body is formed into an L-shaped structure and includes a first section and a second section connected to each other. The end of the first section away from the second section is connected to the crossbeam. The second section is used to be set below the cantilever arm of the box girder. The contact wheel body includes a mounting block, a connecting block, a bending base block, and several rotating wheels. The mounting block is rotatably mounted on the second section. The two ends of the connecting block are respectively connected to the bending base block and the mounting block. The bending base block is bent in a direction away from the box girder, and the bending direction of the bending base block is in the same plane as the transverse direction of the box girder. Several rotating wheels are rotatably mounted on the top surface of the bending base block away from the connecting block. The rotating wheels are used to contact the lower surface of the cantilever arm.

[0009] In one embodiment of the present invention, the top surface of the second segment is recessed inward to form a receiving groove. The receiving groove includes a bottom wall, two vertical side walls and two inclined side walls arranged opposite each other. The bottom wall, the vertical side walls and the inclined side walls together enclose and form a receiving groove for rotatably mounting the mounting block. The two inclined side walls are arranged opposite each other along the extension direction of the curved base block. The mounting block is configured to be able to rotate between the two inclined side walls.

[0010] In one embodiment of this utility model, the included angle A between the two inclined sidewalls satisfies: 60°≤A≤90°.

[0011] In one embodiment of the present invention, the contact wheel body further includes a locking bolt, a first locking through hole is formed on the side of the second section, the first locking through hole is connected to the receiving groove, a second locking through hole is formed on the mounting block corresponding to the first locking through hole, and the locking bolt is used to pass through the first locking through hole and the second locking through hole so that the mounting block is rotatably mounted in the receiving groove.

[0012] In one embodiment of this utility model, the connecting blocks are configured as a plurality of blocks, one end of the plurality of connecting blocks is connected to the bending base block, the other end of the plurality of connecting blocks is connected to the mounting block, and the plurality of connecting blocks are configured to be spaced apart circumferentially along the second locking through hole.

[0013] In one embodiment of the present invention, a plurality of the rotating wheels are arranged circumferentially on the curved base block along the second locking through hole, and each of the connecting blocks is correspondingly arranged between each two adjacent rotating wheels.

[0014] In one embodiment of this utility model, the curved base block is formed into an arc-shaped structure, and the central angle α corresponding to the curved base block satisfies: 60°≤α≤180°.

[0015] In one embodiment of this utility model, the central angle β corresponding to each pair of adjacent rotating wheels set on the bending base block satisfies: β≤15°.

[0016] The technical solution of this utility model has at least the following advantages and beneficial effects:

[0017] When the lower surface of the cantilever arm is arc-shaped, the mounting block of this utility model can automatically rotate to a certain extent, so that at least two of the rotating wheels set on the curved base block can fit against the lower surface of the cantilever arm. In this way, the force on the rotating wheels can be optimized, and the problems of jamming or displacement of the rotating wheels during movement can be avoided.

[0018] Meanwhile, in this embodiment, the curved base block is curved in the direction away from the box girder (i.e., curved in the direction towards the ground), and the rotating wheel that contacts the cantilever arm is installed on the top surface of the curved base block away from the connecting block (i.e., the top surface of the curved base block close to the cantilever arm). This can avoid spatial interference between the curved base block and the box girder (mainly the cantilever arm) and can effectively ensure the smooth movement of the entire bridge building machine along the longitudinal direction of the box girder. Attached Figure Description

[0019] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the bridge-building machine of this utility model, which also shows part of the box girder structure;

[0021] Figure 2 This is a schematic diagram of the connection structure between the crossbeam and the anti-hook beam of this utility model;

[0022] Figure 3 This is an exploded structural diagram of the connecting beam, locking bolt, and contact wheel of this utility model.

[0023] Figure 4 This is a three-dimensional structural diagram of the contact wheel body of this utility model;

[0024] Figure 5 This is a partial cross-sectional structural diagram of the connecting beam and part of the crossbeam of this utility model.

[0025] Icons: 100-Bridge building machine, 200-Box girder, 201-Cantilever arm, 101-Main beam, 102-Driving wheel support device, 103-Stabilizing device, 1-Crossbeam, 2-Hook beam, 21-Connecting beam body, 211-First section, 212-Second section, 2121-Accommodation tank, 2121a-Bottom wall, 2121b-Vertical side wall, 2121c-Inclined side wall, 2122-First locking through hole, 22-Contact wheel body, 221-Mounting block, 2211-Second locking through hole, 222-Connecting block, 223-Bending base block, 224-Rotating wheel, 225-Locking bolt. Detailed Implementation

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0027] To facilitate a clearer and more accurate understanding of the technical solution of this utility model by those skilled in the art, the technical problems existing in the prior art will be further explained below.

[0028] Existing related technology (Chinese patent document with publication number CN114673098B) discloses a self-propelled cantilever bridge building machine, which can be found in its appendix. Figure 2 As stated in paragraph 0035 of the instruction manual, a swinging component capable of horizontally swinging is used to connect the telescopic section and the rear hook wheel. Although the swinging component can rotate at a certain angle, adjusting the angle of the rear hook wheel by rotating the swinging component is unreliable. For example, when the lower surface of the cantilever arm is an outwardly convex (or inwardly concave) arc, the force direction of the rear hook wheel is at an angle to its installation direction. During movement, not only is it easy for the rear hook wheel to get stuck, but it is also easy for the rear hook wheel to deviate from the longitudinal direction of the box girder (thus causing the rear hook wheel to shift), and even, the rear hook wheel may become stuck.

[0029] In view of this, the present invention provides a novel solution, namely the bridge-building machine of the present invention. The bridge-building machine of the present invention enables at least two rotating wheels to simultaneously contact the lower surface of the cantilever arm. In this way, the force on the rotating wheels can be optimized, and the problems of jamming or displacement of the rotating wheels during movement can be avoided.

[0030] The present invention will now be described in detail with reference to the accompanying drawings.

[0031] Please refer to Figures 1-5 This utility model provides a bridge building machine 100, including a main beam 101, a moving wheel support device 102 and a stabilizing device 103. The moving wheel support device 102 is connected to the main beam 101 and is used to move on the box girder 200 along the longitudinal extension direction of the bridge so that the main beam 101 moves along the longitudinal extension direction of the box girder 200. The stabilizing device 103 includes a crossbeam 1 and two anti-hook beams 2 connected to both ends of the crossbeam 1.

[0032] The anti-hook beam 2 includes a connecting beam body 21 and a contact wheel body 22. The connecting beam body 21 is formed into an L-shaped structure and includes a first section 211 and a second section 212 that are connected to each other. The end of the first section 211 away from the second section 212 is connected to the crossbeam 1. The second section 212 is used to be set below the cantilever arm 201 of the box girder 200. The contact wheel body 22 includes a mounting block 221, a connecting block 222, a bending base block 223 and several rotating wheels 224. The mounting block 221 is rotatably mounted on the second section 212. The two ends of the connecting block 222 are respectively connected to the bending base block 223 and the mounting block 221. The bending base block 223 is bent in a direction away from the box girder 200 and the bending direction of the bending base block 223 is in the same plane as the transverse direction of the box girder 200. Several rotating wheels 224 are rotatably mounted on the top surface of the bending base block 223 away from the connecting block 222. The rotating wheels 224 are used to contact the lower surface of the cantilever arm 201.

[0033] Through the above technical solution, when the lower surface of the cantilever arm 201 of the present invention is arc-shaped, the mounting block 221 can automatically rotate to a certain extent, so that at least two of the several rotating wheels 224 set on the curved base block 223 can fit against the lower surface of the cantilever arm 201. In this way, the force on the rotating wheels 224 can be optimized, and the problem of jamming or displacement of the rotating wheels 224 during movement can be avoided.

[0034] Meanwhile, in this embodiment, the bent base block 223 is bent in the direction away from the box girder 200 (i.e., bent in the direction towards the ground), and the rotating wheel 224 that contacts the cantilever arm 201 is installed on the top surface of the bent base block 223 away from the connecting block 222 (i.e. the top surface of the bent base block 223 close to the cantilever arm 201). This can avoid spatial interference between the bent base block 223 and the box girder 200 (mainly the cantilever arm 201), and can effectively ensure the smooth movement of the entire bridge building machine 100 along the longitudinal direction of the box girder 200.

[0035] Furthermore, it is understood that this utility model is a further improvement on the existing technology, and the process of bridge construction has been described in detail in the existing related technologies, so this utility model will not repeat it here.

[0036] An exemplary embodiment of this utility model, such as Figure 3 and Figure 5As shown, the top surface of the second segment 212 is recessed inward to form a receiving groove 2121. The receiving groove 2121 includes a bottom wall 2121a, two vertical side walls 2121b and two inclined side walls 2121c arranged opposite each other. The bottom wall 2121a, the vertical side walls 2121b and the inclined side walls 2121c together enclose the receiving groove 2121 for rotatably mounting the mounting block 221. The two inclined side walls 2121c are arranged opposite each other along the extension direction of the curved base block 223. The mounting block 221 is configured to be able to rotate between the two inclined side walls 2121c.

[0037] Thus, in this embodiment, the provided receiving groove 2121 can be used to install the rotatable mounting block 221. At the same time, the provided two inclined side walls 2121c can limit the mounting block 221 (or connecting block 222), preventing the bent base block 223 with the rotating wheel 224 from rotating excessively, and ensuring reliable contact between the rotating wheel 224 and the cantilever arm 201.

[0038] Meanwhile, the two vertical sidewalls 2121b can guide and restrict the rotation direction of the mounting block 221, so that the mounting block 221 can rotate stably and reliably between the two inclined sidewalls 2121c (i.e., rotate in the transverse direction of the box girder 200) without rotating in the longitudinal direction of the box girder 200, so as to ensure that the rotating wheel 224 set on the curved base block 223 can reliably and stably maintain contact with the cantilever arm 201.

[0039] In one exemplary embodiment of this invention, the included angle A between the two inclined sidewalls 2121c satisfies: 60° ≤ A ≤ 90°. The included angle range between the two inclined sidewalls 2121c corresponds to the rotatable angle of the mounting block 221. It should not be too large or too small. If it is too large, it will prevent at least two rotating wheels 224 from maintaining contact with the cantilever arm 201; if it is too small, the rotatable range of the contact wheel 22 will be too small, making it unsuitable for cantilever arms 201 with more curved surfaces. Therefore, the inventors of this invention, after research, believe that setting the included angle A between 60° and 90° is more suitable. When the included angle A is 60°, it ensures that at least two rotating wheels 224 can maintain contact with the cantilever arm 201, while allowing the contact wheel 22 to have a certain rotatable range, thus ensuring that this invention can be applied to cantilever arms 201 with more curved surfaces. When the included angle A is set to 90°, it can ensure that at least two rotating wheels 224 can maintain contact with the boom 201 while ensuring that the contact wheel body 22 has a large range of rotation.

[0040] An exemplary embodiment of this utility model, such as Figures 2 to 5As shown, the contact wheel body 22 may also include a locking bolt 225. A first locking through hole 2122 is formed on the side of the second section 212. The first locking through hole 2122 is connected to the receiving groove 2121. A second locking through hole 2211 corresponding to the first locking through hole 2122 is formed on the mounting block 221. The locking bolt 225 is used to pass through the first locking through hole 2122 and the second locking through hole 2211 so that the mounting block 221 is rotatably installed in the receiving groove 2121.

[0041] In this way, by setting the locking bolt 225 in this way, in actual use, a more suitable contact wheel 22 can be replaced according to the distance between the cantilever arm 201 and the second section 212, so as to ensure that the rotating wheel 224 on the contact wheel 22 makes stable and reliable contact with the cantilever arm 201.

[0042] At the same time, by installing the contact wheel 22 in such a detachable manner, it is possible to facilitate the installation, disassembly and maintenance of the contact wheel 22 while ensuring its rotatability.

[0043] An exemplary embodiment of this utility model, such as Figure 4 As shown, there can be a number of connecting blocks 222. One end of each connecting block 222 is connected to the bending base block 223, and the other end of each connecting block 222 is connected to the mounting block 221. The connecting blocks 222 are arranged at circumferential intervals along the second locking through hole 2211.

[0044] In this way, on the one hand, setting the connecting blocks 222 in a series of spaced intervals can effectively reduce the self-weight of the contact wheel 22 and improve the stability of the structure. On the other hand, it can also ensure that the force direction of the connecting blocks 222 always points towards the locking bolt 225, further reducing the possibility of jamming or displacement of the rotating wheel 224.

[0045] An exemplary embodiment of this utility model, such as Figure 4 As shown, a plurality of rotating wheels 224 are arranged circumferentially on the curved base block 223 along the second locking through hole 2211, and each connecting block 222 is correspondingly arranged between each two adjacent rotating wheels 224.

[0046] In this way, since the two rotating wheels 224 that come into contact with the boom 201 are necessarily adjacent, when the connecting block 222 is correspondingly set between each pair of adjacent rotating wheels 224, it can better ensure the force balance of the two rotating wheels 224 that come into contact with the boom 201, and further reduce the possibility of the rotating wheels 224 getting stuck or shifting.

[0047] In one exemplary embodiment of this utility model, the bending base block 223 is formed into an arc-shaped structure, and the central angle α corresponding to the bending base block 223 satisfies: 60°≤α≤180°.

[0048] The central angle α corresponding to the bending base block 223 should not be too large or too small. If it is too large, the volume of the bending base block 223 will be too large, affecting the movement of the bridge-building machine 100 of this invention. If it is too small, the number of rotating wheels 224 will be too small, making it difficult to ensure that at least two rotating wheels 224 are in contact with the cantilever arm 201. Therefore, the inventors of this invention believe that a central angle α between 60° and 180° is more suitable. When the central angle α is 60°, a sufficient number of rotating wheels 224 can be provided without affecting the movement of the bridge-building machine 100. When the central angle α is 180°, as many rotating wheels 224 as possible can be provided without affecting the movement of the bridge-building machine 100 as possible, so as to ensure that at least two rotating wheels 224 are in contact with the cantilever arm 201.

[0049] In one exemplary embodiment of this utility model, the central angle β corresponding to each pair of adjacent rotating wheels 224 set on the bending base block 223 satisfies: β≤15°.

[0050] The central angle β corresponding to each pair of adjacent rotating wheels 224 on the bending base block 223 should not be too large, otherwise it will be difficult to ensure that at least two rotating wheels 224 are in contact with the cantilever arm 201. Therefore, the inventors of this utility model believe that it is more appropriate to set the central angle β to be less than or equal to 15°. When the central angle α is 15°, it can be ensured that at least two rotating wheels 224 are in contact with the cantilever arm 201.

[0051] The above are merely preferred embodiments of this utility model and are not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of this utility model should be included within the protection scope of this utility model.

Claims

1. A bridge-building machine, comprising a main beam (101), a moving wheel support device (102), and a stabilizing device (103), wherein the moving wheel support device (102) is connected to the main beam (101) and is used to move on a box girder (200) along the longitudinal extension direction of the bridge, so that the main beam (101) moves along the longitudinal extension direction of the box girder (200), and the stabilizing device (103) comprises a crossbeam (1) and two anti-hook beams (2) connected to both ends of the crossbeam (1), characterized in that, The anti-hook beam (2) includes a connecting beam body (21) and a contact wheel body (22). The connecting beam body (21) is formed in an L-shape and includes a first section (211) and a second section (212) that are connected to each other. The end of the first section (211) away from the second section (212) is connected to the crossbeam (1). The second section (212) is used to be set below the cantilever arm (201) of the box girder (200). The contact wheel body (22) includes a mounting block (221), a connecting block (222), a bending base block (223), and several rotating wheels (224). (221) is rotatably mounted on the second section (212). The two ends of the connecting block (222) are respectively connected to the bending base block (223) and the mounting block (221). The bending base block (223) is bent in a direction away from the box girder (200), and the bending direction of the bending base block (223) is on the same plane as the transverse direction of the box girder (200). A plurality of rotating wheels (224) are rotatably mounted on the top surface of the bending base block (223) away from the connecting block (222). The rotating wheels (224) are used to contact the lower surface of the cantilever arm (201).

2. The bridge-building machine according to claim 1, characterized in that, The top surface of the second segment (212) is recessed inward to form a receiving groove (2121), the receiving groove (2121) including a bottom wall (2121a), two vertical side walls (2121b) and two inclined side walls (2121c) arranged opposite each other. The bottom wall (2121a), the vertical side walls (2121b) and the inclined side walls (2121c) together enclose to form a receiving groove (2121) for rotatably mounting the mounting block (221). The two inclined side walls (2121c) are arranged opposite each other along the extension direction of the curved base block (223). The mounting block (221) is configured to be able to rotate between the two inclined side walls (2121c).

3. A bridge-building machine according to claim 2, characterized in that, The included angle A between the two inclined sidewalls (2121c) satisfies: 60°≤A≤90°.

4. A bridge-building machine according to claim 2, characterized in that, The contact wheel body (22) also includes a locking bolt (225). A first locking through hole (2122) is formed on the side of the second section (212). The first locking through hole (2122) is connected to the receiving groove (2121). A second locking through hole (2211) corresponding to the first locking through hole (2122) is formed on the mounting block (221). The locking bolt (225) is used to pass through the first locking through hole (2122) and the second locking through hole (2211) so that the mounting block (221) is rotatably installed in the receiving groove (2121).

5. A bridge-building machine according to claim 4, characterized in that, The connecting blocks (222) are configured in a plurality of manner, one end of the plurality of connecting blocks (222) being connected to the bending base block (223), the other end of the plurality of connecting blocks (222) being connected to the mounting block (221), and the plurality of connecting blocks (222) being configured to be spaced apart circumferentially along the second locking through hole (2211).

6. A bridge-building machine according to claim 5, characterized in that, A plurality of the rotating wheels (224) are arranged circumferentially on the curved base block (223) along the second locking through hole (2211), and each of the connecting blocks (222) is correspondingly arranged between each two adjacent rotating wheels (224).

7. The bridge-building machine according to claim 1, characterized in that, The curved base block (223) is formed into an arc-shaped structure, and the central angle α corresponding to the curved base block (223) satisfies: 60°≤α≤180°.

8. A bridge-building machine according to claim 7, characterized in that, The central angle β corresponding to each pair of adjacent rotating wheels (224) set on the curved base block (223) satisfies: β≤15°.

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