Bridge rotation system and method

Abstract

The present invention relates to a bridge rotation system and method, which includes an intermediate support portion; rotation drive portions are arranged on both sides of the intermediate support portion; the intermediate support portion is used to support the middle bottom portion of the corresponding rotation bridge; the rotation drive portion is used to support the end bottom portion of the corresponding rotation bridge; the intermediate support portion is arranged to rotate; the rotation drive portion is arranged to rise and fall, and the rotation drive portion drives the rotation bridge to rotate around the intermediate support portion; the present invention has a reasonable design, a compact structure and is easy to use.

Description

Technical Field

[0001] The present invention relates to a bridge rotation system and method. Background Art

[0002] A section of the express line project from a certain new district to a certain international airport passes through multiple locations from south to north. A continuous beam crosses a certain highway at a certain pier section, and the rotating continuous beam is connected to double-track simply supported beams at both ends. The original design used a cast-in-place construction method with side supports and rotation. During construction, the beam was parallel to the highway and located outside the safe operating distance of the highway. The highway was temporarily closed during the rotation process, which took approximately 12 hours. The post-rotation closure section was expected to take 30 days, seriously impacting the project deadline. The existing double-rotating beam solution requires large gaps at both ends and in the middle, which need to be filled to reduce vibration. How can the existing rotation solution be improved to reduce rotation gaps and shorten the turnover cycle? Summary of the Invention

[0003] In view of the above content, the technical problem to be solved by the present invention is generally to provide a bridge rotation system and method that is reasonably designed, low-cost, durable, safe and reliable, simple to operate, time-saving and labor-saving, cost-saving, compact in structure and easy to use; the detailed technical problems solved and the beneficial effects achieved are described in detail in the following content and in combination with the contents of the specific implementation methods.

[0004] In order to solve the above problems, the technical solution adopted by the present invention is:

[0005] A bridge swivel assembly includes an intermediate support portion; swivel drive portions are provided on both sides of the intermediate support portion; the intermediate support portion is used to support the middle bottom portion of the corresponding swivel bridge; and the swivel drive portions are used to support the end bottom portions of the corresponding swivel bridge.

[0006] The middle support part is arranged to rotate;

[0007] The rotating driving part is arranged to be lifted and lowered, and the rotating driving part drives the rotating bridge to rotate around the middle supporting part.

[0008] A bridge rotation system includes two bridges to be joined at both ends and a rotating bridge A and a rotating bridge B arranged between the two bridges to be joined; a joint gap is respectively provided between the bridge to be joined and the rotating bridge A and between the bridge to be joined and the rotating bridge B; a rotation reserved gap is provided between the rotating bridge A and the rotating bridge B; and below the rotating bridge A and / or the rotating bridge B.

[0009] A bridge rotation method, using a bridge rotation system, performs the following steps:

[0010] Step 1: Install the rotating bridge A and the rotating bridge B on the middle support part respectively. The rotating drive part supports the bottom of the corresponding end of the rotating bridge A and the rotating bridge B and waits for rotation.

[0011] Step 2: Rotating bridge A and rotating bridge B are staggered in height and both are higher than the height of the bridge to be connected. The rising position of rotating bridge A is set lower than the rising position of rotating bridge B. The rotating drive unit drives rotating bridge A to rotate to the rising position at the end of the rotation position.

[0012] Step 3: The rotating bridge A is lowered from the raised position to the final position and landed on the corresponding intermediate auxiliary supporting piers and main pier assembly;

[0013] Step 4: Rotate the rotating bridge B from the starting position through the rising position to the ending position;

[0014] Step 5: Remove the intermediate support portion and / or the rotary drive portion.

[0015] The beneficial effects of adopting the above technical solution are:

[0016] The present invention is reasonably designed. When the present invention is used, the bridges to be joined at both ends are realized, and the rotation and closure are realized through the rotating bridge A and the rotating bridge B. The closure gap and the reserved gap of the rotation are small, the construction is safe, and the error is reduced. Through the intermediate support part, the rotating drive part performs one support and lifting and one drive rotation. In order to realize the intermediate rotating support and lifting, the rotating beam is dropped onto the intermediate auxiliary supporting pier and the main pier assembly. The middle chassis support part realizes fixed support, the middle lifting part realizes lifting and supporting, the middle swivel part realizes rotation Z-axis limitation, the middle lower magnetic part, the middle upper movable seat, the middle upper magnetic part, the middle upper supporting seat, and the middle limiting side block part realize magnetic levitation support, the middle auxiliary lifting column, the middle auxiliary contact ball realize weight sharing of the swivel beam, with a hollow guide part and a cofferdam part to realize the impact of water flow, the lifting and swivel support part realizes swivel rotation drive, driving the lower magnetic part and driving the upper magnetic part without restriction, so as to facilitate multiple or one lower magnetic part to relay the upper magnetic part, the side connecting part and the driving upper supporting seat realize connection, the driven fan-shaped gear frame, the swivel guide groove, the main drive gear part, the main drive lifting part, the main supporting frame, and the main support wheel realize gear meshing to realize slow rotation.

[0017] The beneficial effects of the present invention are not limited to this description. For better understanding, a more detailed description is given in the specific implementation section. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the rotary structure of the present invention.

[0019] Figure 2It is a schematic diagram of the existing turntable structure of the present invention.

[0020] Figure 3 It is a top view schematic diagram of the rotation principle of the present invention.

[0021] Figure 4 It is a side view schematic diagram of the rotation principle of the present invention.

[0022] Figure 5 It is a schematic diagram of the construction structure of the rotary body of the present invention.

[0023] Figure 6 It is a schematic diagram of the three-dimensional structure of the swivel assembly of the present invention.

[0024] Figure 7 It is a structural schematic diagram of the intermediate support portion of the present invention.

[0025] Figure 8 It is a structural reference schematic diagram of the rotary drive unit of the present invention.

[0026] Figure 9 It is a structural reference schematic diagram of the limit assembly of the present invention.

[0027] Figure 10 It is a reference structural diagram of the bottom component of the present invention.

[0028] Figure 11 This is a reference layout diagram of the sensors of the present invention.

[0029] Figure 12 Schematic diagram of the reference structure of the turntable of the present invention.

[0030] Figure 13 It is a partial construction reference diagram of the present invention.

[0031] Among them: 1. Bridge to be closed; 2. Rotating bridge A; 3. Rotating bridge B; 5. Closure gap; 4. Reserved gap for rotation; 6. Intermediate support part; 7. Rotating drive part; 8. Intermediate auxiliary supporting pier; 9. Main pier assembly; 10. Intermediate underframe support part; 11. Intermediate lifting part; 12. Intermediate rotating part; 13. Intermediate lower magnetic part; 14. Intermediate upper movable seat; 15. Intermediate upper magnetic part; 16. Intermediate upper supporting seat; 17. Intermediate limit side stop part; 18. Intermediate auxiliary lifting column; 19. Intermediate auxiliary contact ball; 20. Hollow guide part; 21. Cofferdam part; 22. Lifting and rotating support part; 23. Driving lower magnetic part; 24. Driving upper magnetic part; 25. Side connecting part; 26. Driving upper support seat; 27. Driven sector gear frame; 28. Rotating guide groove; 29. ​​Main driving gear part; 30. Main driving lifting part; 31. Main supporting frame; 32. Main supporting wheel. DETAILED DESCRIPTION

[0032] like Figure 1-13As shown, Figures 8-13 Its usefulness does not affect the protection scope of the present invention. In Example 1, the bridge swivel assembly of this embodiment includes an intermediate support portion 6; a swivel drive portion 7 is provided on both sides of the intermediate support portion 6; the intermediate support portion 6 is used to support the middle bottom of the corresponding swivel bridge; the swivel drive portion 7 is used to support the end bottom of the corresponding swivel bridge; the present invention achieves the reduction of the swivel gap through support, rotation, and lifting. The present invention uses the support portion as a fulcrum to achieve positioning, and the present invention drives the swivel bridge through the drive portion, thereby achieving the separation of positioning and driving. Through multiple or one driving methods, better rotation is achieved. Unclear text in the drawings does not affect the protection scope of the present invention.

[0033] The middle support part 6 is arranged to rotate, which only realizes the supporting function; the swivel drive part 7 is arranged to be lifted and lowered, which can be hydraulic or screw lifting. The swivel drive part 7 drives the swivel bridge to rotate around the middle support part 6, thereby realizing one support and one turn to realize rotation.

[0034] An intermediate auxiliary supporting pier 8 is provided between the swivel drive unit 7 and the intermediate support unit 6, and a main pier assembly 9 is provided outside the swivel drive unit 7. After the beam body is lowered, the swivel drive unit and the intermediate support unit are removed.

[0035] As submitted for introduction, the intermediate support portion 6 includes an intermediate chassis support portion 10, which can be realized by prefabrication, assembly or on-site casting;

[0036] An intermediate lifting portion 11 is provided on the intermediate chassis support portion 10, which may be a screw assembly, a hydraulic cylinder or a screw assembly, etc. An intermediate rotating portion 12 is provided on the intermediate lifting portion 11, which may be a conventional structure such as a pressure bearing, polytetrafluoroethylene or graphite filling, etc. The intermediate rotating portion 12 includes an intermediate lower magnetic portion 13 fixedly provided on the intermediate lifting portion 11 and an intermediate upper movable seat 14 provided above the intermediate lower magnetic portion 13; an intermediate upper magnetic portion 15 corresponding to the intermediate lower magnetic portion 13 is provided at the bottom of the intermediate upper movable seat 14, and the upper and lower magnetic portions are preferably matched rotating body shapes, for example The frustum and circular groove or other structures cleverly utilize the principle of magnetic levitation to reduce the friction between the upper and lower magnetic parts; an intermediate upper supporting seat 16 is provided on the upper part of the intermediate upper movable seat 14 for supporting the middle bottom of the rotating bridge, which can be connected to the rotating beam as a whole, thereby realizing rotational support; an intermediate limiting side stop 17 is provided at the edge of the intermediate upper movable seat 14, covering the outer side of the intermediate lower magnetic part 13, and the magnetic part can be a rotating supporting seat; the intermediate upper magnetic part 15 has a central column, and a positioning hole is provided at the center of the intermediate lower magnetic part 13 for matching with the central column to realize rotational positioning;

[0037] An intermediate auxiliary lifting column 18 is provided on the side of the intermediate chassis support portion 10 , and an intermediate auxiliary contact ball 19 or rolling support for rolling contact with the bottom edge of the rotating bridge is provided on the top of the intermediate auxiliary lifting column 18 .

[0038] Used alone or in combination, the swivel drive part 7 includes a lifting swivel support part 22 that is at least arranged at the starting position and / or end position of the descent of the swivel bridge, and a similar structure to the intermediate support part 6 can be adopted; the swivel is provided with a driving lower magnetic part 23 on the lifting swivel support part 22, and a driving upper magnetic part 24 is provided on the driving lower magnetic part 23; a driving upper support seat 26 is provided on the driving upper magnetic part 24, and a side connecting part 25 is provided on the driving upper support seat 26 for connecting the side of the swivel bridge end; thereby achieving limiting.

[0039] A driven sector gear frame 27 having a sector gear is provided on the driving upper bracket 26, and a rotating guide groove 28 coaxial with the sector gear is provided on the driven sector gear frame 27.

[0040] A main drive lifter 30 is located on one side of the sector gear, with a main drive gear unit 29 and a main support frame 31 mounted on top. The drive gear unit 29 engages the sector gear, and a main support wheel 32 supports the main drive gear unit 29. The sector gear is coaxial with the intermediate support unit 6. Rotation is achieved through the meshing of the drive pinion and sector gear. To facilitate meshing, the gears are chamfered with arcs, and auxiliary support is achieved through the intermediate support unit 6.

[0041] When the intermediate base frame support 10 is in the water flow, a cofferdam 21 is installed outside the intermediate base frame support 10, and a hollowed-out guide 20 is installed upstream along the water flow. When the lifting and rotating body support 22 is in the water flow, a cofferdam 21 is installed outside the lifting and rotating body support 22, and a hollowed-out guide 20 is installed upstream along the water flow. This allows the bridge to close across a river or sea.

[0042] As an example, the bridge rotation system of this embodiment includes two bridges to be joined 1 at each end, and a rotating bridge A2 and a rotating bridge B3 disposed between the two bridges 1. A closure gap 5 is provided between the bridge 1 and the rotating bridge A2, and between the bridge 1 and the rotating bridge B3, respectively. A rotation reserve gap 4 is provided between the rotating bridge A2 and the rotating bridge B3. Under the rotating bridge A2 and / or the rotating bridge B3, this allows for the rational use of components. The gap can be reduced to a set width for direct use, and can also be used as a clearance to account for thermal expansion and contraction.

[0043] As a method of use, the bridge rotation method of this embodiment, with the help of the bridge rotation system, performs the following steps:

[0044] Step 1: Install the rotating bridge A2 and the rotating bridge B3 on the intermediate support 6 respectively. The rotating driving unit 7 supports the bottom of the corresponding end of the rotating bridge A2 and the rotating bridge B3 and waits for rotation.

[0045] Step 2: The rotating bridge A2 and the rotating bridge B3 are staggered in height and both are higher than the height of the bridge to be closed 1. The rising position of the rotating bridge A2 is set lower than the rising position of the rotating bridge B3; the rotating driving unit 7 drives the rotating bridge A2 to rotate to the rising position at the end of the rotation position;

[0046] Step 3: The rotating bridge A2 is lowered from the raised position to the final position and landed on the corresponding intermediate auxiliary supporting pier 8 and main pier assembly 9;

[0047] Step 4: Rotate the rotating bridge B3 from the starting position through the rising position to the ending position;

[0048] Step 5: remove the intermediate support portion 6 and / or the rotary drive portion 7.

[0049] In step two, when the rotating bridge A2 rotates, first, the upper support seat 26 is driven to support the bottom of the rotating bridge A2, and the side connecting part 25 is connected to the side of the end of the rotating bridge A2; then, the middle lower magnetic part 13 generates a repulsive buoyancy on the middle upper magnetic part 15, and at the same time, the lower magnetic part 23 is driven to generate a repulsive buoyancy on the upper magnetic part 24; secondly, by raising the corresponding main drive lifting part 30, the main drive gear part 29 engages the fan gear, with the center hole and the center column as the axis, so that the rotating bridge A2 rotates from the starting position to the rising position.

[0050] In step three, first, the intermediate auxiliary lifting column 18 and the intermediate lifting part 11 are synchronously lowered, so that the rotating bridge A2 is dropped onto the intermediate auxiliary supporting pier 8 and the main pier assembly 9; then, the intermediate lower magnetic part 13 and the intermediate upper magnetic part 15 are powered off, so that the electromagnetic force disappears; secondly, the intermediate auxiliary lifting column 18 is lowered, so that the intermediate rotating part 12 is separated from the rotating bridge A2; thirdly, the side connecting part 25 is separated from the rotating bridge A2; the driving lower magnetic part 23 and the driving upper magnetic part 24 are powered off, so that the electromagnetic force disappears; thereafter, the lifting and rotating support part 22 is lowered, and the main driving lifting part 30 is lowered.

[0051] The invention has reasonable design, low cost, durability, safety and reliability, simple operation, time and labor saving, money saving, compact structure and convenient use.

[0052] The present invention is fully described for a clearer disclosure, and the prior art is not listed one by one.

[0053] Finally, it should be noted that the above embodiments are intended only to illustrate the technical solutions of the present invention and are not intended to limit the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will appreciate that the technical solutions described in the above embodiments may be modified or some of the technical features may be replaced with equivalents. It is also obvious for those skilled in the art to combine multiple technical solutions of the present invention. However, such modifications or replacements do not deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bridge rotation system, characterized in that : The system includes two bridges to be joined (1) at both ends and a rotating bridge A (2) and a rotating bridge B (3) arranged between the two bridges to be joined (1); a joint gap (5) is respectively provided between the bridge to be joined (1) and the rotating bridge A (2) and between the bridge to be joined (1) and the rotating bridge B (3); a rotation reserved gap (4) is provided between the rotating bridge A (2) and the rotating bridge B (3); below the rotating bridge A (2) and the rotating bridge B (3); the rotating bridge A (2) and the rotating bridge B (3) are equipped with a bridge rotation component; The system further comprises an intermediate support portion (6); a rotation drive portion (7) is provided on both sides of the intermediate support portion (6); the intermediate support portion (6) is used to support the middle bottom portion of the corresponding rotation bridge; the rotation drive portion (7) is used to support the end bottom portion of the corresponding rotation bridge; The middle support part (6) is arranged to rotate; The rotating driving part (7) is arranged to be lifted and lowered, and the rotating driving part (7) drives the rotating bridge to rotate around the middle supporting part (6); The intermediate support portion (6) includes an intermediate chassis support portion (10); An intermediate lifting portion (11) is provided on the intermediate chassis support portion (10); an intermediate rotating portion (12) is provided on the intermediate lifting portion (11); the intermediate rotating portion (12) includes an intermediate lower magnetic portion (13) fixedly provided on the intermediate lifting portion (11) and an intermediate upper movable seat (14) provided above the intermediate lower magnetic portion (13); an intermediate upper magnetic portion (15) corresponding to the intermediate lower magnetic portion (13) is provided at the bottom of the intermediate upper movable seat (14); an intermediate upper supporting seat (16) is provided on the upper part of the intermediate upper movable seat (14) for supporting the middle bottom of the rotating bridge; an intermediate limiting side stop (17) is provided at the edge of the intermediate upper movable seat (14) and covers the outer side of the intermediate lower magnetic portion (13); the intermediate upper magnetic portion (15) has a central column, and a positioning hole is provided at the center of the intermediate lower magnetic portion (13) for matching with the central column; An intermediate auxiliary lifting column (18) is provided on the side of the intermediate chassis support portion (10), and an intermediate auxiliary contact ball (19) for rolling contact with the bottom edge of the rotating bridge is provided on the top of the intermediate auxiliary lifting column (18).

2. The bridge rotation system according to claim 1, characterized in that : The swivel driving part (7) includes a lifting swivel support part (22) at least arranged at the starting position and / or the end position of the swivel bridge falling; the swivel is provided with a driving lower magnetic part (23) on the lifting swivel support part (22), and a driving upper magnetic part (24) is provided on the driving lower magnetic part (23); a driving upper support seat (26) is provided on the driving upper magnetic part (24), and a side connecting part (25) is provided on the driving upper support seat (26) for connecting the side of the swivel bridge end; A driven sector gear frame (27) having a sector gear is provided on the driving upper bracket (26), and a swivel guide groove (28) coaxial with the sector gear is provided on the driven sector gear frame (27). A main driving lifting portion (30) is provided on one side of the sector gear, and a main driving gear portion (29) and a main supporting frame (31) are respectively provided on the main driving lifting portion (30); the driving gear portion (29) engages with the sector gear, and the main supporting wheel (32) is used to support the main driving gear portion (29); The sector gear is coaxial with the intermediate support portion (6).

3. The bridge rotation system according to claim 2, characterized in that When the middle chassis support portion (10) is located in the water flow, a cofferdam portion (21) is provided outside the middle chassis support portion (10), and a hollowed-out guide portion (20) is provided upstream along the water flow direction.

4. The bridge rotation system according to claim 3, characterized in that When the lifting and rotating support part (22) is located in the water flow, a cofferdam part (21) is provided outside the lifting and rotating support part (22), and a hollow guide part (20) is provided upstream along the water flow direction.

5. The bridge rotation system according to claim 4, characterized in that An intermediate auxiliary supporting pier (8) is provided between the rotating driving portion (7) and the intermediate supporting portion (6), and a main pier assembly (9) is provided outside the rotating driving portion (7).

6. A bridge rotation method, characterized in that : With the aid of the bridge rotation system according to claim 1, the following steps are performed; Step 1: The rotating bridge A (2) and the rotating bridge B (3) are respectively erected on the middle support part (6), and the rotating driving part (7) supports the corresponding end bottoms of the rotating bridge A (2) and the rotating bridge B (3) and waits for rotation; Step 2: The rotating bridge A (2) and the rotating bridge B (3) are staggered in height and both are higher than the height position of the bridge to be joined (1), and the rising position of the rotating bridge A (2) is set to be lower than the rising position of the rotating bridge B (3); the rotating driving part (7) drives the rotating bridge A (2) to rotate to the rising position at the end of the rotation position; Step 3: The rotating bridge A (2) is lowered from the raised position to the terminal position and landed on the corresponding intermediate auxiliary supporting pier (8) and the main pier assembly (9); Step 4: Rotate the rotating bridge B (3) from the starting position through the rising position to the ending position; Step five: remove the intermediate support portion (6) and / or the rotary drive portion (7).

7. The bridge rotation method according to claim 6, characterized in that : In step 2, when the rotating bridge A (2) rotates, first, the upper support seat (26) is driven to support the bottom of the rotating bridge A (2), and the side connection part (25) is connected to the side of the end of the rotating bridge A (2); then, the middle lower magnetic part (13) generates a repulsive buoyancy force on the middle upper magnetic part (15), and at the same time, the driving lower magnetic part (23) generates a repulsive buoyancy force on the driving upper magnetic part (24); secondly, by raising the corresponding main driving lifting part (30), the main driving gear part (29) engages the fan gear, with the center hole and the center column as the axis, so that the rotating bridge A (2) rotates from the starting position to the rising position.

8. The bridge rotation method according to claim 7, characterized in that : In step three, first, the intermediate auxiliary lifting column (18) and the intermediate lifting part (11) are synchronously lowered, so that the rotating bridge A (2) falls onto the intermediate auxiliary supporting pier (8) and the main pier assembly (9); then, the intermediate lower magnetic part (13) and the intermediate upper magnetic part (15) are powered off, so that the electromagnetic force disappears; secondly, the intermediate auxiliary lifting column (18) is lowered, so that the intermediate rotating part (12) is separated from the rotating bridge A (2); thirdly, the side connecting part (25) is separated from the rotating bridge A (2); the driving lower magnetic part (23) and the driving upper magnetic part (24) are powered off, so that the electromagnetic force disappears; thereafter, the lifting rotating support part (22) is lowered, and the main driving lifting part (30) is lowered.

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