Bridge swivel support with support fixing function

Abstract

The utility model discloses a bridge swivel support with a support fixing function, and belongs to the technical field of bridge construction. The bridge swivel support assembly is located above the lower bearing platform and comprises a swivel lower support and a swivel upper support which are oppositely spliced together, and a bearing padstone is arranged between the swivel lower support and the lower bearing platform; the fixed limiting assembly comprises a fixed limiting column body installed at the center position of the top face of the rotating body upper support, a rotating disc piece rotationally installed at the top end of the fixed limiting column body, a plurality of inverted L-shaped limiting cross beams annularly arrayed on the outer wall of the peripheral side of the rotating disc piece, and U-shaped limiting clamping rods installed on the inner walls of the L-shaped limiting cross beams in a telescopic mode; the two ends of each U-shaped limiting clamping rod abut against the peripheral side outer walls of the rotating body lower support and the rotating body upper support correspondingly. The peripheral edges of the lower rotating body support and the upper rotating body support are connected through a plurality of fasteners, and a damping and buffering part is further arranged beside each fastener.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge construction, in particular to a bridge rotation support with the function of a fixed support. Background Technique

[0002] The bridge rotation support is a load-bearing component during the horizontal rotation of the bridge, generally arranged on both sides of the crossing area. During construction, the bridge body to be rotated is prefabricated first using a support or formwork. Then, using a tension traction device with the central pin shaft of the support as the rotation axis and the bridge structure itself as the rotating body, through the relative rotation between the spherical surfaces with the cooperation of the slideway and the supporting feet, the bridge is rotated to the position of the bridge axis for closure.

[0003] In bridge construction, especially in cases where it is necessary to cross complex terrains such as rivers and valleys, the rotation construction technology is often used to complete the erection of the bridge. Traditional bridge rotation supports have the following problems or disadvantages: The rotation supports in the prior art often do not have an effective limiting mechanism to restrict the lateral movement of the lower rotation support and the upper rotation support, resulting in easy swaying during the rotation process and affecting the stability of the rotation. Content of the Utility Model

[0004] The purpose of the utility model is to provide a bridge rotation support with the function of a fixed support to solve the problems raised in the background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A bridge rotation support with the function of a fixed support, comprising:

[0006] Lower bearing platform;

[0007] The bridge rotation support assembly, located above the lower bearing platform and comprising a lower rotation support and an upper rotation support that are spliced together relatively. A bearing pad stone is arranged between the lower rotation support and the lower bearing platform;

[0008] The fixed limiting assembly, including a fixed limiting column body installed at the center position of the top surface of the upper rotation support, a turntable member rotatably installed at the top end of the fixed limiting column body, a plurality of inverted L-shaped limiting crossbeams annularly arrayed on the outer circumferential wall of the turntable member, and U-shaped limiting clamping rods telescopically installed on the inner walls of each L-shaped limiting crossbeam. The two ends of each U-shaped limiting clamping rod respectively abut against the outer circumferential walls of the lower rotation support and the upper rotation support;

[0009] Wherein, the circumferential edges of the lower rotation support and the upper rotation support are connected by a plurality of fasteners, and a shock absorption and buffering component is also arranged beside each fastener.

[0010] Preferably, auxiliary traveling wheels are installed at one end of each of the L-shaped limiting cross beams away from the turntable member, and the auxiliary traveling wheels are in rolling friction contact with the top surface of the bearing cushion stone.

[0011] Preferably, oil cylinder members are horizontally installed at the lower part of the inner wall of each of the L-shaped limiting cross beams, and the telescopic free end of the oil cylinder member is fixedly connected to the back surface of the U-shaped limiting rod;

[0012] The oil cylinder member drives the U-shaped limiting rod to extend and abut against the circumferential outer walls of the lower rotating support and the upper rotating support.

[0013] Preferably, an installation chassis is welded to the bottom end of the fixed limiting column body, and the installation chassis is fixedly connected to the top surface of the upper rotating support through bolts.

[0014] Preferably, a motor installation hole is longitudinally opened on the top surface of the fixed limiting column body, a servo motor is fixedly installed in the motor installation hole, and the output shaft of the servo motor is fixedly connected to the turntable member.

[0015] Preferably, extension connecting plates are welded and extended outward at the circumferential edges of the lower rotating support and the upper rotating support, and two adjacent extension connecting plates that are symmetrically arranged up and down are connected together through locking screws.

[0016] Preferably, the shock absorption and buffering component includes a hydraulic damper installed between two adjacent extension connecting plates that are symmetrically arranged up and down and a buffer spring sleeved on the periphery of each hydraulic damper.

[0017] Preferably, a bearing cushion block is arranged between the bearing cushion stone and the lower rotating support, the lower rotating support is connected to the lower bearing platform through lower anchor rods, and concrete is poured inside the lower bearing platform and around the periphery of the lower anchor rods, and the upper rotating support is connected to the upper bearing platform through upper anchor rods.

[0018] Compared with the prior art, the technical effects and advantages of the present utility model are as follows:

[0019] The bridge rotating support with the function of a fixed support precisely controls the rotation of the turntable member through a servo motor, realizes precise control of the rotation angle and speed, thereby improving the smoothness and accuracy of the rotation process. The design of the fixed limiting component, including the combined use of the L-shaped limiting cross beam and the U-shaped limiting rod, effectively limits the lateral movement of the lower rotating support and the upper rotating support, enhances the fixed limiting function during the rotation process, and improves the stability of the structure. The combined use of the hydraulic damper and the buffer spring significantly reduces the vibration and impact during the rotation process and improves the smoothness of the rotation process.

[0020] Through the comprehensive use of the fixed limit components and the shock-absorbing and buffering components, the potential safety hazards that may occur during the rotation process are greatly reduced, and the construction safety is improved. The use of the bearing cushion block and the bearing pad stone enables the installation height of the lower rotating support to be finely adjusted according to the actual situation, improving the flexibility and adaptability of the structure. Through the coordinated use of the fixed limit column, the L-shaped limit cross beam, the U-shaped limit rod, and the oil cylinder component, the lateral movement of the lower rotating support and the upper rotating support is effectively restricted, and the stability during the rotation process is improved. Brief Description of the Drawings

[0021] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a structural schematic diagram of the present invention;

[0023] Figure 2 For the present invention Figure 1 It is an enlarged structural schematic diagram of part A in the present invention;

[0024] Figure 3 It is an installation structural schematic diagram of the L-shaped limit cross beam of the present invention;

[0025] Figure 4 It is a disassembly structural schematic diagram of the servo motor of the present invention.

[0026] Description of the Reference Numerals in the Drawings:

[0027] In the figure: 1, lower bearing platform; 2, bearing pad stone; 3, bearing cushion block; 4, lower rotating support; 5, upper anchor rod; 6, fixed limit column; 7, L-shaped limit cross beam; 8, lower anchor rod; 9, concrete; 10, upper rotating support; 11, bridge rotating support assembly; 12, fixed limit component; 13, U-shaped limit rod; 14, oil cylinder component; 15, extension connecting plate; 16, locking screw; 17, hydraulic damper; 18, buffer spring; 19, turntable component; 20, auxiliary walking wheel; 21, servo motor; 22, motor mounting hole. Detailed Embodiments

[0028] In the following description, a large number of specific details are given to provide a more thorough understanding of the present invention. However, it is obvious to those skilled in the art that the present invention can be implemented without one or more of these details. In other examples, in order to avoid confusion with the present invention, some well-known technical features in the art are not described.

[0029] Unless otherwise defined, the directions such as up, down, left, right, front, back, inside and outside involved in this article are based on the up, down, left, right, front, back, inside and outside directions in the figures shown in the present utility model. This is hereby explained together.

[0030] This embodiment provides a bridge rotation bearing with the function of a fixed support as shown in Figures 1 to 4 It includes: a lower bearing platform 1, a bridge rotation bearing assembly 11, and a fixed limit assembly 12; the lower bearing platform 1 serves as the bottom foundation structure of the entire rotation system, is used to bear the entire bridge rotation bearing assembly 11 and its load, provides a stable support platform, ensures the stability and safety during the rotation operation, and ensures the firmness of the rotation system under different environmental conditions.

[0031] In this embodiment, the bridge rotation bearing assembly 11 is located above the lower bearing platform 1 and includes a rotation lower support 4 and a rotation upper support 10 that are spliced together relatively. A bearing cushion stone 2 is arranged between the rotation lower support 4 and the lower bearing platform 1; the bearing cushion stone 2 adjusts the height of the rotation lower support 4 and ensures smooth contact between it and the lower bearing platform 1, provides the ability of horizontal adjustment, adapts to uneven ground, ensures the smooth placement of the rotation lower support 4, ensures the flatness of the contact surface between the rotation lower support 4 and the lower bearing platform 1, and improves the stability of the overall structure. The rotation lower support 4 serves as the lower support structure of the rotation system, is used to cooperate with the rotation upper support 10 to achieve the rotation function, bears the load transmitted from the rotation upper support 10, and realizes the rotation movement, realizes the smooth rotation of the bridge, and ensures the smooth progress during the rotation process.

[0032] In this embodiment, the fixed limit component 12 includes a fixed limit column body 6 installed at the center position of the top surface of the upper rotating support 10, a turntable member 19 rotatably installed at the top end of the fixed limit column body 6, a plurality of inverted L-shaped limit cross beams 7 annularly arranged on the outer wall of the circumferential side of the turntable member 19, and U-shaped limit clamping rods 13 telescopically installed on the inner walls of each L-shaped limit cross beam 7. The two ends of each U-shaped limit clamping rod 13 respectively abut against the outer walls of the circumferential sides of the lower rotating support 4 and the upper rotating support 10; the fixed limit column body 6, as the core component of the fixed limit component 12, is used to install the components of the other fixed limit components 12, providing an installation base to facilitate the installation and fixation of other components, and ensuring the overall stability and reliability of the fixed limit component 12. The L-shaped limit cross beam 7 and the U-shaped limit clamping rod 13 are used in cooperation to form an annular limit structure, restricting the lateral movement of the lower rotating support 4 and the upper rotating support 10, ensuring their position stability during the rotation process, and improving the overall rigidity and stability of the rotating system. The upper rotating support 10, as the upper support structure of the rotating system, cooperates with the lower rotating support 4 to achieve the rotating function, bears the load from the upper structure, and together with the lower rotating support 4 realizes the rotating motion, achieving the smooth rotation of the bridge and ensuring the smooth progress during the rotation process. The U-shaped limit clamping rod 13 and the L-shaped limit cross beam 7 are used in cooperation to form an annular limit structure, and through telescopic adjustment, together with the L-shaped limit cross beam 7, restrict the lateral movement of the lower rotating support 4 and the upper rotating support 10, improving the overall rigidity and stability of the rotating system. The oil cylinder member 14 is used to drive the U-shaped limit clamping rod 13 to extend or contract, realizing the telescopic adjustment of the U-shaped limit clamping rod 13 to adapt to different limit requirements, ensuring that the limit structure can flexibly adapt to different working states, and the circumferential edges of the lower rotating support 4 and the upper rotating support 10 are connected by a plurality of fasteners, and a shock absorption and buffering component is also arranged beside each fastener.

[0033] In this embodiment, an auxiliary walking wheel 20 is installed at one end of each L-shaped limit cross beam 7 away from the turntable member 19, and the auxiliary walking wheel 20 is in rolling friction contact with the top surface of the bearing pad stone 2. The auxiliary walking wheel 20 is installed at the end of the L-shaped limit cross beam 7 and is used to roll on the bearing pad stone 2, reducing friction, providing rolling support, reducing the frictional resistance of the L-shaped limit cross beam 7 during the movement process, improving the smoothness during the rotation process, and reducing energy consumption.

[0034] In this embodiment, an oil cylinder member 14 is horizontally installed at the lower part of the inner wall of each L-shaped limit cross beam 7, and the telescopic free end of the oil cylinder member 14 is fixedly connected to the back surface of the U-shaped limit clamping rod 13, and the oil cylinder member 14 drives the U-shaped limit clamping rod 13 to extend and abut against the outer walls of the circumferential sides of the lower rotating support 4 and the upper rotating support 10.

[0035] In this embodiment, an installation chassis is welded to the bottom end of the fixed limit column body 6, and the installation chassis is fixedly connected to the top surface of the upper rotating support 10 through bolts.

[0036] In this embodiment, a motor mounting hole 22 is longitudinally formed in the top surface of the fixed limit column 6. A servo motor 21 is fixedly installed in the motor mounting hole 22. The output shaft of the servo motor 21 is fixedly connected to the turntable member 19. The servo motor 21 is used to drive the rotation of the lower rotating support 4 and the upper rotating support 10, provide precise rotational power, achieve precise control of the lower rotating support 4 and the upper rotating support 10, realize the automatic control of the rotation process, and improve the rotation accuracy and efficiency.

[0037] In this embodiment, the fasteners include extension connecting plates 15 that are welded and extended outward at the peripheral edges of the lower rotating support 4 and the upper rotating support 10. Two adjacent extension connecting plates 15 that are symmetrically arranged up and down are connected together by locking screws 16. The extension connecting plates 15 are used to connect the edges of the lower rotating support 4 and the upper rotating support 10, increase the strength and stability of the edges, facilitate the installation of the locking screws 16, improve the connection strength between the lower rotating support 4 and the upper rotating support 10, and ensure their tight fit. The locking screws 16 are used to connect the extension connecting plates 15, maintain the tight connection between the lower rotating support 4 and the upper rotating support 10, provide additional connection force, ensure the tight connection between the lower rotating support 4 and the upper rotating support 10, increase the connection strength between the lower rotating support 4 and the upper rotating support 10, and improve the stability of the overall structure.

[0038] In this embodiment, the shock absorption and buffering components include hydraulic dampers 17 installed between two adjacent extension connecting plates 15 that are symmetrically arranged up and down, and buffer springs 18 sleeved on the periphery of each hydraulic damper 17. The hydraulic dampers 17 are used to absorb the vibration and impact during the rotation process, provide a shock absorption function, reduce the vibration and impact generated during the rotation process, reduce the vibration during the rotation process, and improve the smoothness of the rotation process. The buffer springs 18 are used together with the hydraulic dampers 17 to provide additional shock absorption effects, absorb vibration energy through elastic deformation, reduce the impact, further reduce the vibration and impact during the rotation process, and improve the smoothness of the rotation process.

[0039] In this embodiment, a bearing pad block 3 is provided between the bearing cushion stone 2 and the lower rotating support 4. The lower rotating support 4 is connected to the lower bearing platform 1 through a lower anchor rod 8, and concrete 9 is poured inside the lower bearing platform 1 and around the lower anchor rod 8. The upper rotating support 10 is connected to the upper bearing platform through an upper anchor rod 5. The bearing pad block 3 adjusts the gap between the lower rotating support 4 and the bearing cushion stone 2 to ensure a proper installation height, achieving fine adjustment to meet different installation height requirements and making the installation between the lower rotating support 4 and the bearing cushion stone 2 more accurate. The upper anchor rod 5 is used to fix the upper rotating support 10 to the superstructure or the upper bearing platform, providing a strong connection force to ensure the reliable connection between the upper rotating support 10 and the superstructure, guaranteeing the firm combination between the upper rotating support 10 and the superstructure, and preventing loosening during the rotation process. The lower anchor rod 8 is used to fix the lower rotating support 4 to the lower bearing platform 1, providing a strong fixing force to ensure the firm connection between the lower rotating support 4 and the lower bearing platform 1, guaranteeing the stable connection between the lower rotating support 4 and the lower bearing platform 1, and avoiding displacement during the rotation process. The concrete 9 is used to fill the internal space of the lower bearing platform 1, increasing the weight and stability of the lower bearing platform 1, improving the structural strength and overall stability of the lower bearing platform 1, increasing the anti-overturning ability of the lower bearing platform 1, and enhancing the safety of the overall structure.

[0040] Working principle:

[0041] For the bridge rotating support with the function of a fixed support, the lower bearing platform 1 is poured at a predetermined position, the bearing cushion stone 2 is placed thereon, the lower rotating support 4 is installed on the bearing cushion stone 2, and it is fixed inside the lower bearing platform 1 through the lower anchor rod 8, and the concrete 9 is poured for further reinforcement. The upper rotating support 10 and the lower rotating support 4 are spliced with each other through the fixed limit assembly 12.

[0042] The fixed limit column body 6 is installed at the center position of the top surface of the upper rotating support 10, the servo motor 21 and the turntable member 19 are installed at the top end of the fixed limit column body 6, the limiting function is achieved through the L-shaped limit cross beam 7 and the U-shaped limit clamping rod 13, and the auxiliary traveling wheels 20 are installed at the end of the L-shaped limit cross beam 7.

[0043] The extension connecting plates 15 are installed on the peripheral edges of the lower rotating support 4 and the upper rotating support 10, and the hydraulic damper 17 and the buffer spring 18 are installed between the extension connecting plates 15 to form a shock absorption and buffering component. The rotation of the turntable member 19 is controlled by the servo motor 21, thereby driving the lower rotating support 4 and the upper rotating support 10 to achieve the rotation movement. The L-shaped limit cross beam 7 and the U-shaped limit clamping rod 13 are driven to extend through the oil cylinder member 14 to limit the lateral movement of the lower rotating support 4 and the upper rotating support 10. The hydraulic damper 17 and the buffer spring 18 absorb the vibration and impact during the rotation process to ensure the smoothness of the rotation process.

[0044] When the slewing body reaches the predetermined position, the servo motor 21 stops working, the lower slewing bearing support 4 and the upper slewing bearing support 10 stay at the correct positions, and the U-shaped limit latch 13 locks the position to ensure that the lower slewing bearing support 4 and the upper slewing bearing support 10 no longer move. After the slewing operation is completed, subsequent fixing and connecting work is carried out.

[0045] It should be noted that in this text, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or sequence between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising a..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0046] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principle and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A bridge swivel bearing with fixed bearing function, characterized in that: include: Lower support (1); A bridge swivel bearing assembly (11) is located above the lower pedestal (1) and comprises a swivel lower bearing (4) and a swivel upper bearing (10) which are relatively spliced ​​together, and a supporting cushion stone (2) is arranged between the swivel lower bearing (4) and the lower pedestal (1); A fixed limiting assembly (12) comprises a fixed limiting column (6) mounted at the center of the top surface of the swivel upper support (10), a turntable (19) rotatably mounted on the top of the fixed limiting column (6), a plurality of inverted L-limiting beams (7) arranged in an annular array on the peripheral outer wall of the turntable (19), and a U-shaped limiting clamping rod (13) telescopically mounted on the inner wall of each L-limiting beam (7), wherein the two ends of each U-shaped limiting clamping rod (13) are respectively abutted against the peripheral outer wall of the swivel lower support (4) and the swivel upper support (10); The circumferential edges of the lower swivel support (4) and the upper swivel support (10) are connected via a plurality of fasteners, and a shock-absorbing and buffering component is arranged next to each fastener.

2. The bridge swivel bearing with fixed bearing function according to claim 1, characterized in that: An auxiliary running wheel (20) is installed at one end of each L-limiting cross beam (7) away from the turntable member (19), and the auxiliary running wheel (20) is in rolling frictional contact with the top surface of the supporting cushion stone (2).

3. The bridge swivel bearing with fixed bearing function according to claim 2, characterized in that: A cylinder member (14) is horizontally mounted on the lower portion of the inner wall of each L-shaped limiting cross beam (7), and a telescopic free end of the cylinder member (14) is fixedly connected to the back side of the U-shaped limiting clamping rod (13); The oil cylinder (14) drives the U-shaped limit clamping rod (13) to extend and abut against the peripheral outer walls of the swivel lower support (4) and the swivel upper support (10).

4. The bridge swivel bearing with fixed bearing function according to claim 3, characterized in that: A mounting chassis is welded to the bottom end of the fixed limiting column (6), and the mounting chassis is fixedly connected to the top surface of the swivel upper support (10) via bolts.

5. The bridge swivel bearing with fixed bearing function according to claim 4, characterized in that: A motor mounting hole (22) is longitudinally opened on the top surface of the fixed limiting column (6), a servo motor (21) is fixedly mounted in the motor mounting hole (22), and an output shaft of the servo motor (21) is fixedly connected to the turntable member (19).

6. The bridge swivel bearing with fixed bearing function according to claim 5, characterized in that: The fastener comprises an extension connecting plate (15) welded outwardly extending from the peripheral edges of the lower swivel support (4) and the upper swivel support (10), and two symmetrically adjacent extension connecting plates (15) are connected together via locking screws (16).

7. The bridge swivel bearing with fixed bearing function according to claim 6, characterized in that: The shock-absorbing and buffering component comprises a hydraulic damper (17) installed between two symmetrically adjacent extending connecting plates (15) and a buffer spring (18) sleeved on the circumference of each hydraulic damper (17).

8. The bridge swivel bearing with fixed bearing function according to claim 7, characterized in that: A support pad (3) is provided between the supporting cushion stone (2) and the lower support (4) of the swivel, the lower support (4) of the swivel is connected to the lower support platform (1) via a lower anchor rod (8), and concrete (9) is poured inside the lower support platform (1) and around the lower anchor rod (8), and the upper support (10) of the swivel is connected to the upper support platform via an upper anchor rod (5).

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