A swivel ball connecting steel framework for bridge swivel construction

Abstract

The application relates to the technical field of bridge construction, in particular to a swivel ball hinge steel framework for bridge swivel construction, which comprises a lower bearing platform and an upper bearing platform arranged on the lower bearing platform; a ball hinge mechanism, which comprises a first support frame arranged in the lower bearing platform, a mounting table arranged on the end surface of the first support frame, a lower ball hinge table arranged on the end surface of the mounting table, a pin shaft sleeved in the lower ball hinge table and an upper ball hinge table arranged on the end surface of the lower ball hinge table; a slide way mechanism, which comprises a second support table sleeved in the lower bearing platform and a slide table surface arranged on the end surface of the second support table; a supporting leg mechanism, which comprises a supporting leg cylinder arranged on the end surface of the slide table surface; a sand box mechanism, which comprises a sand box cylinder arranged on the end surface of the slide table surface; and a traction mechanism, which comprises a traction cable arranged outside the upper bearing platform.

Description

Technical Field

[0001] This invention relates to the field of bridge construction technology, specifically to a rotating ball-hinged steel frame for bridge rotation construction. Background Technology

[0002] Bridge construction is a complex system engineering project that integrates rigorous processes, innovative technologies, and strict management.

[0003] In modern bridge construction, especially in busy urban traffic arteries or mountainous areas with rugged terrain, the core challenge is minimizing disruption to existing traffic flow and overcoming complex construction conditions such as narrow sites and difficulty in deploying large equipment. Traditional construction methods, such as cast-in-place scaffolding or large-scale road closures, not only cause severe traffic congestion and safety hazards but also result in huge socio-economic losses. Furthermore, they pose extremely high safety risks in areas with complex geological conditions. To address these challenges, bridge rotation construction technology has emerged. Therefore, we propose a rotating ball-hinged steel frame for bridge rotation construction. Summary of the Invention

[0004] In view of the above-mentioned problems in the prior art, the present invention is proposed.

[0005] Therefore, the object of the present invention is to provide a rotating ball-hinged steel frame for bridge rotation construction, comprising,

[0006] The lower bearing platform and the upper bearing platform disposed on the lower bearing platform; and,

[0007] The ball joint mechanism includes a first support frame disposed inside the lower bearing platform, a mounting platform disposed on the end face of the first support frame, a lower ball joint platform disposed on the end face of the mounting platform, a pin sleeved inside the lower ball joint platform, and an upper ball joint platform disposed on the end face of the lower ball joint platform; and,

[0008] The slide mechanism includes a second support platform sleeved inside the lower support platform and a slide surface disposed on the end face of the second support platform; and,

[0009] The support mechanism includes support sleeves disposed on the end face of the slide surface; and,

[0010] The sandbox mechanism includes a sandbox cylinder disposed on the end face of the slide surface; and,

[0011] The traction mechanism includes a traction cable disposed outside the upper bearing platform; wherein;

[0012] The lower and upper piers serve as the piers, the ball joint mechanism is used as the rotation axis for bridge rotation construction, the sliding mechanism, the support leg mechanism, and the sand box mechanism work together to increase support during bridge rotation construction, and the traction mechanism is used as the traction force for bridge rotation construction.

[0013] As a preferred embodiment of the rotating ball joint steel frame for bridge rotation construction according to the present invention, wherein: the first support frame is located inside the lower bearing platform; the end face of the mounting platform is provided with a threaded post; the outer wall of the threaded post is fitted with a first nut; the outer wall of the threaded post is fitted with a support plate; the end face of the support plate is connected to the end face of the lower ball joint platform; the outer wall of the threaded post is fitted with a second nut, which is located on the end face of the support plate; the end face of the lower ball joint platform is provided with an oil storage hole; the lower ball joint platform is fitted with a lower support cylinder; and the pin is placed inside the lower support cylinder.

[0014] As a preferred embodiment of the rotating ball joint steel frame for bridge rotation construction of the present invention, wherein: the upper ball joint platform is located inside the upper bearing platform, an upper support cylinder is sleeved inside the upper ball joint platform, the upper support cylinder is sleeved outside the pin shaft, and rubber washers are sleeved on the outer walls of the lower ball joint platform and the upper ball joint platform.

[0015] As a preferred embodiment of the rotating ball hinge steel frame of the present invention for bridge rotation construction, wherein: there are multiple oil storage holes arranged in multiple columns, the vertical section of the support plate is L-shaped, and there are multiple threaded columns, first nuts, support plates and second nuts arranged in a circular equidistant array along the vertical line of the first support frame.

[0016] As a preferred embodiment of the rotating ball hinge steel frame for bridge rotation construction of the present invention, wherein: the end of the support tube is provided with a sliding plate, the end face of the sliding plate is in contact with the end face of the sliding table surface, and a connecting plate is sleeved on the outer wall of the support tube.

[0017] As a preferred embodiment of the rotating ball hinge steel frame for bridge rotation construction according to the present invention, wherein: the support tube is located on the outer wall of the end of the connecting plate inside the upper bearing platform; there are two support tubes, which are mirror-symmetrical about the perpendicular line of the connecting plate; the two support tubes, one sliding plate, and one connecting plate form a support mechanism; there are multiple support mechanisms, which are arranged in a circular equidistant array between the sides of the upper bearing platform and the sliding platform that are close to each other.

[0018] As a preferred embodiment of the rotating ball hinged steel frame of the present invention for bridge rotation construction, wherein: the outer wall of the sand box cylinder is fitted with bolts, the inner wall of the sand box cylinder is provided with tension springs, and the end of the tension spring near the bolt is in contact with the end of the bolt located inside the sand box cylinder.

[0019] As a preferred embodiment of the rotating ball hinged steel frame of the present invention for bridge rotation construction, wherein: there are multiple sand box mechanisms, which are arranged in a circular equidistant array along the vertical line of the sliding table surface, and two sand box mechanisms are respectively set between the sides of multiple sets of support leg mechanisms that are close to each other.

[0020] As a preferred embodiment of the rotating ball-jointed steel frame for bridge rotation construction according to the present invention, wherein: an anchor block is sleeved inside the upper bearing platform, the end of the anchor block near the outer side of the upper bearing platform is connected to the end of the traction cable, the outer wall of the traction cable is in contact with the outer wall of the upper bearing platform, the other end of the outer wall of the traction cable is sleeved inside the hydraulic traction machine, and a support column is provided on the outer wall of the lower bearing platform, the interior of the support column is sleeved inside the outer wall of the hydraulic traction machine.

[0021] As a preferred embodiment of the rotating ball hinged steel frame of the present invention for bridge rotation construction, wherein: there are two traction mechanisms, which are used for traction in the same direction on both outer sides of the upper bearing platform.

[0022] The beneficial effects of this invention are as follows: By cooperating with the lower bearing platform and the ball joint mechanism, the upper bearing platform is cast on the ball joint mechanism. Therefore, when the upper bearing platform rotates, the ball joint mechanism serves as the rotation axis. Through the cooperation of the sliding mechanism, the support leg mechanism, and the sand box mechanism, the lower side of the upper bearing platform can be supported, and rotation is also convenient. At the same time, the added traction mechanism serves as the traction force for the rotation of the upper bearing platform, and the two traction forces can realize the bridge rotation action. Attached Figure Description

[0023] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0024] Figure 1 This is a schematic diagram of the spherical hinged steel frame used for bridge rotation construction.

[0025] Figure 2 This is an exploded structural diagram of a rotating ball-hinged steel frame used in bridge rotation construction.

[0026] Figure 3 This is a schematic diagram of the ball hinge mechanism of the rotating ball hinge steel frame used in bridge rotation construction.

[0027] Figure 4 This is a schematic diagram of the traction mechanism of a rotating ball-hinged steel frame used in bridge rotation construction.

[0028] Figure 5 This is a schematic diagram of the support mechanism of the rotating ball hinged steel frame used in bridge rotation construction.

[0029] Figure 6 This is a schematic diagram of a sandbox mechanism for a rotating ball hinged steel frame used in bridge rotation construction.

[0030] In the diagram: 1. Lower bearing platform; 2. Upper bearing platform; 3. Ball joint mechanism; 31. First support frame; 3101. Mounting platform; 32. Threaded column; 33. First nut; 34. Lower ball joint platform; 3401. Oil reservoir; 35. Support plate; 36. Second nut; 37. Lower support cylinder; 38. Upper ball joint platform; 39. Pin; 310. Upper support cylinder; 311. Rubber washer; 4. Slide mechanism; 41. Second support platform; 42. Slide surface; 5. Support leg mechanism; 51. Slide plate; 52. Support leg cylinder; 53. Connecting plate; 6. Sandbox mechanism; 61. Sandbox cylinder; 62. Bolt; 63. Tension spring; 7. Traction mechanism; 71. Anchor block; 72. Traction cable; 73. Hydraulic traction machine; 74. Support column. Detailed Implementation

[0031] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0032] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0033] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0034] Example 1, referring to Figures 1 to 6 This is the first embodiment of the invention, which provides a rotating ball-hinged steel frame for bridge rotation construction, enabling bridge rotation construction, comprising a lower bearing platform 1 and an upper bearing platform 2 mounted on the lower bearing platform 1; and...

[0035] The ball joint mechanism 3 includes a first support frame 31 disposed inside the lower bearing platform 1, a mounting platform 3101 disposed on the end face of the first support frame 31, a lower ball joint platform 34 disposed on the end face of the mounting platform 3101, a pin 39 sleeved inside the lower ball joint platform 34, and an upper ball joint platform 38 disposed on the end face of the lower ball joint platform 34; and,

[0036] The slide mechanism 4 includes a second support platform 41 sleeved inside the lower support platform 1 and a slide surface 42 disposed on the end face of the second support platform 41; and,

[0037] The support mechanism 5 includes a support cylinder 52 disposed on the end face of the slide surface 42; and,

[0038] Sandbox mechanism 6 includes a sandbox cylinder 61 disposed on the end face of the slide surface 42; and,

[0039] The traction mechanism 7 includes a traction cable 72 disposed outside the upper bearing platform 2; wherein;

[0040] The lower bearing platform 1 and the upper bearing platform 2 serve as bearing platforms. The ball joint mechanism 3 is used as the rotation shaft for bridge rotation construction. The cooperation of the sliding mechanism 4, the support leg mechanism 5, and the sand box mechanism 6 can increase support during bridge rotation construction. The traction mechanism 7 is used as the traction force for bridge rotation construction.

[0041] In summary, during use, the lower pier 1 is first set up as the lower support for the bridge rotation construction. The lower pier 1 is made of reinforced concrete and poured into the foundation pit dug in the ground. The concrete in the lower pier 1 is poured in two times to increase stability. The surface of the lower pier 1 must be a flat plane with an error of no more than one millimeter.

[0042] When the lower bearing platform 1 is being cast, the first support frame 31 in the ball joint mechanism 3 is located inside the lower bearing platform 1, and the first support frame 31 and the lower bearing platform 1 are cast together. The mounting platform 3101, which is fixedly connected to the end face of the first support frame 31, serves as the mounting support for the lower ball joint platform 34. The lower ball joint platform 34 is mounted on the mounting platform 3101. Lubricating oil is poured onto the side of the pin 39 that is away from the mounting platform 3101 through the lower ball joint platform 34 to increase the lubrication between the upper ball joint platform 38 and the lower ball joint platform 34. Then, the pin 39 is inserted into the interior of the lower ball joint platform 34. The upper ball joint platform 38 is placed on the surface of the lower ball joint platform 34, and the pin 39 is also located inside the upper ball joint platform 38. The lower ball joint platform 34 and the pin 39 are on the same vertical line.

[0043] By pre-embedding the second support platform 41 inside the foundation pit of the lower foundation 1 during the casting of the lower foundation 1, and by placing the slide surface 42 of the slide mechanism 4 on the surface of the lower foundation 1, and fixing the surface of the slide surface 42 with a specially made stainless steel plate, in order to facilitate the rotation of the support cylinder 52 in the support mechanism 5 on the surface of the slide surface 42, and the upper foundation 2 is cast on the outer wall of the upper ball joint platform 38, and the top of the outer wall of the support cylinder 52 is also cast inside the upper foundation 2 during the casting, and the upper foundation 2 is cast by a combination of concrete and steel reinforcement, thus facilitating the rotation of the upper foundation 2 around the axis of the pin 39;

[0044] The sand box cylinder 61 in the sand box mechanism 6 is located between the upper support platform 2 and the surface of the sliding table 42, so it can temporarily support the upper support platform 2. The inside of the sand box cylinder 61 is filled with screened dry fine sand, and the sand box cylinder 61 is in a closed state to avoid the inside getting damp. Moreover, the inside of the sand box cylinder 61 needs to be pre-compressed after the fine sand is filled to avoid the problem of settling.

[0045] By using the anchor block 71 in the traction mechanism 7 to surround the outer wall of the upper pier 2, and then using the tension of the traction cable 72 to cooperate with the ball joint mechanism 3, the sliding mechanism 4, the support leg mechanism 5, the sand box mechanism 6, and the traction mechanism 7, the bridge being constructed on the upper pier 2 can perform a rotation action.

[0046] Example 2, refer to Figures 1-6 This is the second embodiment of the invention. Unlike the previous embodiment, this embodiment provides structural optimization of the ball joint mechanism, which solves the problem of bridge rotation. The first support frame 31 is located inside the lower bearing platform 1. The end face of the mounting platform 3101 is provided with a threaded post 32. The outer wall of the threaded post 32 is sleeved with a first nut 33. The outer wall of the threaded post 32 is sleeved with a support plate 35. The end face of the support plate 35 is connected to the end face of the lower ball joint platform 34. The outer wall of the threaded post 32 is sleeved with a second nut 36, which is located on the end face of the support plate 35. The end face of the lower ball joint platform 34 is provided with an oil storage hole 3401. The lower ball joint platform 34 is sleeved with a lower support cylinder 37. The pin 39 is placed inside the lower support cylinder 37.

[0047] Specifically, the upper ball joint 38 is located inside the upper bearing 2. An upper support cylinder 310 is sleeved inside the upper ball joint 38. The upper support cylinder 310 is sleeved outside the pin 39. A rubber washer 311 is sleeved on the outer wall of the lower ball joint 34 and the upper ball joint 38.

[0048] Furthermore, there are multiple oil storage holes 3401 arranged in a multi-column array, the vertical section of the support plate 35 is L-shaped, and there are multiple threaded columns 32, first nuts 33, support plates 35, and second nuts 36 arranged in a ring-shaped equidistant array along the vertical line of the first support frame 31.

[0049] In summary, during use, since the first support frame 31 and the mounting platform 3101 are already connected to the lower support platform 1, multiple threaded posts 32 are fixedly connected to the first support frame 31. Then, a first nut 33 is threadedly connected to the outer wall of each threaded post 32. When the lower ball joint platform 34 is placed on the mounting platform 3101, multiple support plates 35 fixedly connected to the lower surface of the lower ball joint platform 34 are respectively sleeved on the outside of the threaded posts 32. Since the inner walls of multiple second nuts 36 are threadedly connected to the outer walls of the threaded posts 32, the support plates 35 can be clamped and fixed on the threaded posts 32. When the support plates 35 are placed on the outer wall of the threaded posts 32, the height of the first nut 33 on the threaded posts 32 can be adjusted to adjust the horizontal state of the upper surface of the lower ball joint platform 34. After the surface of the lower ball joint platform 34 is level, the support plates 35 are fixed by the second nuts 36, thereby preventing the rotation of the lower ball joint platform 34.

[0050] By providing multiple oil storage holes 3401 on the surface of the lower ball joint 34, lubricant can be stored in the oil storage holes 3401 when it is poured onto the surface of the lower ball joint 34. This reduces the friction area when the lower ball joint 34 supports the upper ball joint 38. At the same time, the lubricant on the lower ball joint 34 can also be stored between the upper ball joint 38 and the lower ball joint 34. After the upper ball joint 38 and the lower ball joint 34 are brought close together and their surfaces come into contact, a rubber gasket 311 is wrapped around the outer ring of the contact area between the lower ball joint 34 and the upper ball joint 38. This prevents dust from entering the area between the lower ball joint 34 and the upper ball joint 38 and also prevents the internal lubricant from being discharged.

[0051] Example 3, referring to Figures 1-6 This is the third embodiment of the invention. Unlike the previous embodiment, this embodiment provides structural optimization of the support mechanism, which solves the problem of rotation support. The end of the support cylinder 52 is provided with a slide plate 51, the end face of the slide plate 51 is in contact with the end face of the slide table surface 42, and the outer wall of the support cylinder 52 is sleeved with a connecting plate 53.

[0052] Specifically, the support tube 52 is located on the outer wall of the end of the connecting plate 53 inside the upper support platform 2. There are two support tubes 52, which are mirror-symmetrical about the vertical line of the connecting plate 53. The two support tubes 52, one slide plate 51, and one connecting plate 53 form a support mechanism 5. There are multiple support mechanisms 5, which are arranged in a circular equidistant array between the upper support platform 2 and the slide surface 42 on the side that are close to each other.

[0053] In summary, during use, the support mechanism 5 and the sandbox mechanism 6 are configured. The support cylinder 52 in the support mechanism 5 is placed on the surface of the slide table 42. The slide plate 51 is fixed below the two support cylinders 52, and the two ends of the slide plate 51 are raised to facilitate the sliding of the slide plate 51 on the surface of the slide table 42. The outer walls of the two support cylinders 52 on the slide plate 51 are fixedly connected by the connecting plate 53, thereby forming the two support cylinders 52 into one. When the upper support platform 2 is poured, the outer walls of the support cylinders 52 are on the surface of the connecting plate 53. Therefore, the support mechanism 5 can be used as the rotation support for the upper support platform 2. By placing multiple sets of upper support platforms 2 on the surface of the slide table 42 and equidistantly arranged in an array along the central axis of the slide table 42, the lower surface side of the upper support platform 2 can be supported. The perpendicular bisector of the slide table 42 and the perpendicular bisector of the ball joint mechanism 3 are the same perpendicular bisector.

[0054] Example 4, refer to Figures 1-6 This is the fourth embodiment of the invention. Unlike the previous embodiment, this embodiment provides structural optimization of the sandbox mechanism, which solves the problem of easy rotation support sliding. The outer wall of the sandbox cylinder 61 is fitted with a bolt 62, and the inner wall of the sandbox cylinder 61 is provided with a tension spring 63. The end of the tension spring 63 near the bolt 62 is in contact with the end of the bolt 62 located inside the sandbox cylinder 61.

[0055] Specifically, there are multiple sandbox mechanisms 6, which are arranged in a circular equidistant array along the vertical line of the sliding table surface 42. Two sandbox mechanisms 6 are respectively set between the sides of the multiple sets of support mechanisms 5 that are close to each other.

[0056] In summary, during use, the sand box mechanism 6 is set up by placing two sand box mechanisms 6 between the two sets of support leg mechanisms 5 on the side where they are close to each other. By placing multiple sand box mechanisms 6 between the upper support platform 2 and the sliding table surface 42 on the side where they are close to each other, the sand box mechanism 6 can temporarily support the upper support platform 2. When it is necessary to rotate the bridge for construction, the bolt 62 is removed from the inside of the sand box cylinder 61 by rotating the bolt 62. Therefore, the tension spring 63 will push the bolt 62 under tension, making it easy to remove the bolt 62. After the bolt 62 is removed, the tension spring 63 will drive the fine sand inside the sand box cylinder 61 to be discharged from the through hole of the fixing bolt 62 under tension. The tension spring 63 is under tension, thus avoiding the problem of the fine sand inside the sand box cylinder 61 being compacted and difficult to discharge.

[0057] Example 5, refer to Figures 1-6This is the fifth embodiment of the invention. Unlike the previous embodiment, this embodiment provides structural optimization of the traction mechanism, which solves the traction problem. An anchor block 71 is sleeved inside the upper support platform 2. The end of the anchor block 71 near the outside of the upper support platform 2 is connected to the end of the traction cable 72. The outer wall of the traction cable 72 is in contact with the outer wall of the upper support platform 2. The other end of the outer wall of the traction cable 72 is sleeved inside the hydraulic traction machine 73. A support column 74 is provided on the outer wall of the lower support platform 1. The inside of the support column 74 is sleeved inside the outer wall of the hydraulic traction machine 73.

[0058] Specifically, there are two traction mechanisms 7, which are used for traction in the same direction on both sides of the outer side of the upper bearing platform 2.

[0059] In summary, during use, the traction mechanism 7 is used, and the support column 74 within the traction mechanism 7 is poured next to the lower foundation 1. The support column 74 is also poured using concrete and steel reinforcement, and is poured simultaneously with the lower foundation 1 to increase stability. The hydraulic traction machine 73 is placed inside the support column 74, thus supporting and limiting the hydraulic traction machine 73. Since the anchor block 71 is fixed inside during the pouring of the upper foundation 2 and the steel reinforcement is rolled, the concrete in the upper foundation 2 will fix the anchor block 71. A traction cable 72 is fixed inside the anchor block 71 and is wrapped around the outside of the upper foundation 2 and connected to the hydraulic traction machine 73. Therefore, when a rotation is required, the two hydraulic traction machines 73 move synchronously, thereby achieving the rotation of the upper foundation 2 and enabling the bridge under construction on the upper foundation 2 to complete the rotation movement.

[0060] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A rotating ball-hinged steel frame for bridge rotation construction, characterized in that: Including, The lower bearing platform (1) and the upper bearing platform (2) provided on the lower bearing platform (1); and, The ball joint mechanism (3) includes a first support frame (31) disposed inside the lower bearing platform (1), a mounting platform (3101) disposed on the end face of the first support frame (31), a lower ball joint platform (34) disposed on the end face of the mounting platform (3101), a pin (39) sleeved inside the lower ball joint platform (34), and an upper ball joint platform (38) disposed on the end face of the lower ball joint platform (34); and, The slide mechanism (4) includes a second support platform (41) sleeved inside the lower support platform (1) and a slide surface (42) disposed on the end face of the second support platform (41); and, The support mechanism (5) includes a support cylinder (52) disposed on the end face of the slide surface (42); and, The sandbox mechanism (6) includes a sandbox cylinder (61) disposed on the end face of the slide surface (42); and, The traction mechanism (7) includes a traction cable (72) disposed outside the upper bearing platform (2); wherein; The lower bearing platform (1) and the upper bearing platform (2) serve as bearing platforms. The ball joint mechanism (3) is used as the rotating shaft for bridge rotation construction. The cooperation of the sliding mechanism (4), the support foot mechanism (5), and the sand box mechanism (6) can increase support during bridge rotation construction. The traction mechanism (7) is used as the traction force for bridge rotation construction.

2. The rotating ball-jointed steel frame for bridge rotation construction as described in claim 1, characterized in that: The first support frame (31) is located inside the lower bearing platform (1). The end face of the mounting platform (3101) is provided with a threaded column (32). The outer wall of the threaded column (32) is fitted with a first nut (33). The outer wall of the threaded column (32) is fitted with a support plate (35). The end face of the support plate (35) is connected to the end face of the lower ball joint platform (34). The outer wall of the threaded column (32) is fitted with a second nut (36) and is located on the end face of the support plate (35). The end face of the lower ball joint platform (34) is provided with an oil storage hole (3401). The lower ball joint platform (34) is fitted with a lower support cylinder (37). The pin (39) is placed inside the lower support cylinder (37).

3. The rotating ball-jointed steel frame for bridge rotation construction as described in claim 2, characterized in that: The upper ball joint (38) is located inside the upper bearing (2). An upper support cylinder (310) is sleeved inside the upper ball joint (38). The upper support cylinder (310) is sleeved on the outside of the pin (39). A rubber washer (311) is sleeved on the outer wall of the lower ball joint (34) and the upper ball joint (38).

4. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 3, characterized in that: There are multiple oil storage holes (3401) arranged in a multi-column array. The vertical section of the support plate (35) is L-shaped. There are multiple threaded columns (32), first nuts (33), support plates (35), and second nuts (36), arranged in a ring-shaped equidistant array along the vertical line of the first support frame (31).

5. The rotating ball-jointed steel frame for bridge rotation construction as described in claim 4, characterized in that: The end of the support tube (52) is provided with a slide plate (51), the end face of the slide plate (51) is in contact with the end face of the slide table (42), and the outer wall of the support tube (52) is fitted with a connecting plate (53).

6. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 5, characterized in that: The foot support cylinder (52) is located on the outer wall of the end of the connecting plate (53) inside the upper support platform (2). There are two foot support cylinders (52), which are mirror symmetrical about the vertical line of the connecting plate (53). The two foot support cylinders (52), one sliding plate (51), and one connecting plate (53) form a foot support mechanism (5). There are multiple foot support mechanisms (5), which are arranged in a circular equidistant array between the upper support platform (2) and the sliding table surface (42) on the side that are close to each other.

7. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 6, characterized in that: Bolts (62) are fitted onto the outer wall of the sand box cylinder (61), and tension springs (63) are provided on the inner wall of the sand box cylinder (61). The end of the tension spring (63) near the bolt (62) is in contact with the end of the bolt (62) inside the sand box cylinder (61).

8. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 7, characterized in that: The sandbox mechanism (6) consists of multiple sandbox mechanisms, which are arranged in a circular equidistant array along the vertical line of the sliding table surface (42). Two sandbox mechanisms (6) are respectively set between the sides of the multiple sets of support mechanisms (5) that are close to each other.

9. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 8, characterized in that: An anchor block (71) is sleeved inside the upper support (2). The end of the anchor block (71) near the outside of the upper support (2) is connected to the end of the traction cable (72). The outer wall of the traction cable (72) is in contact with the outer wall of the upper support (2). The other end of the outer wall of the traction cable (72) is sleeved inside the hydraulic traction machine (73). A support column (74) is provided on the outer wall of the lower support (1). The interior of the support column (74) is sleeved inside the outer wall of the hydraulic traction machine (73).

10. The rotating ball-hinged steel frame for bridge rotation construction as described in claim 9, characterized in that: There are two traction mechanisms (7), which are used to pull the upper support platform (2) in the same direction on both sides of the outside.

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