Rotatable overturn-preventing support with mortise and tenon joint structure

Abstract

The utility model provides a rotatable overturn-preventing support of a tenon-and-mortise structure, which comprises an upper support plate and a lower support plate, the upper support plate can rotate relative to the lower support plate, the edge of the upper support plate extends downwards along the axial direction to form tenon-and-mortise connecting parts, and the tenon-and-mortise connecting parts are distributed along the circumferential direction of the upper support plate. The side, close to the outer side wall of the lower support plate, of the tenon-and-mortise connecting part is provided with a plurality of first mortise grooves formed in parallel at intervals, the cross section of each first mortise groove is semicircular or square, the lower support plate is provided with second mortise grooves matched with the first mortise grooves, and the first mortise grooves and the second mortise grooves define a circular sliding way or a square sliding way. A plurality of steel balls are filled in the circular slide way, and a square slide block is filled in the square slide way. The defects that in the prior art, the crossing distance of a swivel support is large, and due to an open type upper support plate and lower support plate connecting structure, a bridge loses balance in the bridge swivel process, and the possibility of overturning is caused can be overcome.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge rotation technology, in particular to a tenon and mortise structure rotatable anti-overturning bearing. Background Technique

[0002] With the country's investment in infrastructure, the transportation road network has developed rapidly. Compared with the traditional construction method, the application of the bridge rotation construction method saves material and labor costs and improves the construction progress. The rotation construction process is gradually developing and improving, which puts forward higher requirements for bridge rotation construction practitioners.

[0003] When a new bridge crosses existing lines such as highways and railways, it often affects the normal operation of the lines under the bridge. In order to reduce the impact, the rotation construction method came into being. In the plane rotation construction, the rotation construction is a key process. Its bearing and installation play a decisive role in whether the rotation system can operate normally. In this regard, the anti-overturning ability of the rotation construction is related to the life and health of the people. How to optimize the control not only improves the safety and stability of the rotation construction, reduces the rotation deviation, and ensures the stability of the rotation system has become the key factor for the success or failure of the bridge rotation.

[0004] In the prior art, whether it is the production of spherical hinges or pot bearings, a split upper bearing plate and a lower bearing plate are used. The upper bearing plate can rotate around the lower bearing plate to realize the rotation of the bridge. However, due to the heavy load of the rotation bearing and the large span distance, the open connection structure between the upper bearing plate and the lower bearing plate will cause the bridge to lose balance in the process of bridge rotation in case of uncontrollable factors such as strong wind, foundation settlement, and uneven settlement. In severe cases, there is a possibility of overturning. Content of the Utility Model

[0005] Therefore, the utility model provides a tenon and mortise structure rotatable anti-overturning bearing, which can overcome the defect that in the prior art, due to the heavy load of the rotation bearing and the large span distance, the open connection structure between the upper bearing plate and the lower bearing plate will cause the bridge to lose balance in the process of bridge rotation in case of uncontrollable factors such as strong wind, foundation settlement, and uneven settlement, and in severe cases, there is a possibility of overturning.

[0006] To solve the above problems, the present utility model provides a tenon-mortise structure rotatable anti-overturning support, which includes an upper support plate and a lower support plate. The upper support plate can rotate relative to the lower support plate. A tenon-mortise connection part is formed by axially extending downward along the edge of the upper support plate. The tenon-mortise connection parts are distributed circumferentially along the upper support plate. On one side of the tenon-mortise connection part close to the outer side wall of the lower support plate, there are a number of first mortise grooves arranged in parallel at intervals. The cross-section of the first mortise groove is semicircular or square. The lower support plate has a second mortise groove adapted to the first mortise groove. The first mortise groove and the second mortise groove enclose a circular slideway or a square slideway. A number of steel balls are filled in the circular slideway, and a square slider is filled in the square slideway.

[0007] In some embodiments, on one side of the lower support plate close to the upper support plate, a pin protruding from the lower support plate is provided, and the upper support plate has a cavity adapted to the pin.

[0008] In some embodiments, there are two first mortise grooves, one of which has a semicircular cross-section and the other has a square cross-section.

[0009] In some embodiments, when the upper support plate and the lower support plate are a double-plane rotation structure, the upper support plate and the lower support plate are rotationally connected through an intermediate connecting plate. A sliding plate is arranged between the upper support plate and the intermediate connecting plate, and a stainless steel plate is arranged between the intermediate connecting plate and the lower support plate.

[0010] In some embodiments, a gear ring is arranged at the outer edge of the upper support plate. A gear ring protective cover is arranged on the upper part of the gear ring. A number of driving gears are arranged outside the gear ring. The driving gears are connected to a gearbox, and the power source is provided by a motor or a hydraulic motor.

[0011] In some embodiments, when the upper support plate is a convex spherical panel and the lower support plate is a concave spherical panel, polytetrafluoroethylene is arranged on the surface of the concave spherical panel in contact with the convex spherical panel, and a stainless steel spherical panel is arranged on the upper surface of the convex spherical panel.

[0012] In some embodiments, the tenon-mortise structure rotatable anti-overturning support further includes an intelligent control system. The intelligent control system includes a rotating support body force sensor module, a data acquisition and transmission module, a data analysis and processing module, and a control and warning module. The rotating support body force sensor module is used for collecting rotating body data; the data acquisition and transmission module is used for transmitting the rotating body data; the data analysis and processing module is used for comprehensively analyzing and processing the rotating body data; the control and warning module is used for system control and warning according to the analysis result of the data analysis and processing module.

[0013] In some embodiments, a hydraulic jacking device is further provided on the lower support plate for controlling the lifting of the lower support plate.

[0014] In some embodiments, the hydraulic jacking device includes a hydraulic cylinder. The lower end of the lower support plate extends into the hydraulic cylinder. The lower end of the lower support plate has a flexible sealing structure. The flexible sealing structure divides the chamber of the hydraulic cylinder into upper and lower chambers. The lower chamber is communicated with a hydraulic distribution valve for injecting or discharging hydraulic oil into the lower chamber to control the lifting of the lower support plate.

[0015] The rotatable anti-overturning support with tenon-mortise structure provided by the present utility model is provided with one or more first mortise grooves of circular or rectangular ring supports on the upper support plate, and one or more second mortise grooves of circular or rectangular ring supports on the lower support plate. When assembling the rotating support, the upper support plate is placed on the lower support plate and prestressed. When the mortise grooves on the upper support plate and the lower support plate are in the same plane, they are combined into a circular or rectangular hole-shaped mortise. A circular, rectangular or roller-type tenon-mortise connector square slider is installed, so that the upper support plate and the lower support plate are connected through the tenon-mortise structure to form an integral rotating support. The middle structure bears the vertical force, and the tenon-mortise structure bears the unbalanced force. The tenon-mortise structure rotatable support of the present application can withstand all-directional loads such as large radial loads, axial loads and overturning moment loads, has the performance of shock resistance to avoid dangerous factors in the case of uneven stress at both ends of the rotating bridge, and has the anti-overturning ability, thus ensuring stability and firmness. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic structural diagram of an embodiment of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0017] Figure 2 It is a schematic structural diagram of the upper support plate of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0018] Figure 3 It is a schematic structural diagram of the lower support plate of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0019] Figure 4 It is a schematic structural diagram of another embodiment of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0020] Figure 5 It is a schematic structural diagram of a third embodiment of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0021] Figure 6 It is a schematic structural diagram of a fourth embodiment of the rotatable anti-overturning support with tenon-mortise structure according to an embodiment of the present utility model;

[0022] Figure 7 This is a schematic structural view of the fifth embodiment of the tenon-mortise structure rotatable anti-overturning bearing of the embodiment of the present utility model.

[0023] The reference signs in the drawings are shown as:

[0024] 1. Upper bearing plate; 101. Tenon-mortise connection part; 1011. First mortise groove; 2. Lower bearing plate; 201. Second mortise groove; 3. Slide plate; 4. Numerical control sensor; 5. Anchor bolt; 6. Axle pin; 7. Rubber plate; 8. Piston rod; 9. Limit card slot; 10. Stainless steel plate; 11. Piston; 12. Oil seal; 13. Seal; 14. Hydraulic distribution valve; 15. Gear ring; 16. Upper pier. Specific embodiments

[0025] With reference to Figures 1 to 7 As shown, according to the embodiment of the present utility model, there is provided a tenon-mortise structure rotatable anti-overturning bearing, which includes an upper bearing plate 1 and a lower bearing plate 2. The upper bearing plate 1 can rotate relative to the lower bearing plate 2. A tenon-mortise connection part 101 is formed by extending downward along the axial direction at the edge of the upper bearing plate 1. The tenon-mortise connection part 101 is distributed circumferentially along the upper bearing plate 1. One side of the tenon-mortise connection part 101 close to the outer side wall of the lower bearing plate 2 has a plurality of first mortise grooves 1011 arranged in parallel at intervals. The cross-section of the first mortise groove 1011 is semicircular or square. The lower bearing plate 2 has a second mortise groove 201 adapted to the first mortise groove 1011. The first mortise groove 1011 and the second mortise groove 201 enclose a circular slideway or a square slideway. A plurality of steel balls are filled in the circular slideway, and square sliders are filled in the square slideway. One or more first mortise grooves 1011 of circular or rectangular ring supports are arranged on the upper bearing plate 1, and one or more second mortise grooves 201 of circular or rectangular ring supports are arranged on the lower bearing plate 2. When assembling the rotating body bearing, the upper bearing plate 1 is placed on the lower bearing plate 2 and prestress is applied. When the mortise grooves of the upper bearing plate 1 and the mortise grooves of the lower bearing plate 2 are in the same plane, they are combined into a circular or rectangular hole-shaped mortise eye, and circular, rectangular or roller-shaped tenon-mortise connectors or square sliders are installed, so that the upper bearing plate 1 and the lower bearing plate 2 are connected through the tenon-mortise structure to form an integral rotating body bearing. The tenon-mortise structure bears the unbalanced force. The tenon-mortise structure rotatable bearing of the present application can bear large radial loads, axial loads, overturning moment loads and other loads in all directions, has the performance of shock resistance, avoids the risk factors in the case of uneven stress at both ends of the rotating body bridge, and has the anti-overturning ability, thus ensuring stability and firmness.

[0026] Specifically, the circular slideway and the square slideway are mortise eyes, and the steel balls and the square sliders are tenons. The tenons are adapted to the mortise eyes to combine the upper support plate 1 and the lower support plate 2 into a tenon-mortise structure rotatable anti-overturning support. The middle structure of the support bears the vertical load, and the contact surfaces of the tenons and mortise eyes of the tenon-mortise structure resist unbalanced forces, having the ability to resist impact and anti-overturning.

[0027] Specifically, the upper support plate 1 and the lower support plate 2 are connected to the foundation layer and the upper pier 16 through anchor bolts 5.

[0028] In a specific embodiment, on one side of the lower support plate 2 close to the upper support plate 1, a pin 6 protruding from the lower support plate 2 is provided, and the upper support plate 1 has a concave cavity adapted to the pin 6. By providing the pin 6, the rotational relationship between the upper support plate 1 and the lower support plate 2 is made more reliable.

[0029] In a specific embodiment, there are two first mortise grooves 1011, one of which has a semi-circular cross-section and the other has a square cross-section. When applied to a deflecting bridge, one with a semi-circular cross-section and the other with a square cross-section can increase the anti-overturning moment.

[0030] In a specific embodiment, when the upper support plate 1 and the lower support plate 2 are of a double-plane rotating structure, the upper support plate 1 and the lower support plate 2 are rotationally connected through an intermediate connecting plate. A slide plate 3 is arranged between the upper support plate 1 and the intermediate connecting plate, and a stainless steel plate 10 is arranged between the intermediate connecting plate and the lower support plate 2. The double-plane radial sliding anti-overturning support is applicable to the unbalanced force rotation construction of a bridge when the weights at both ends of the rotating bridge are different. In the prior art, usually the slide plate 3 and the stainless steel plate 10 are arranged on the same side of the intermediate connecting plate. When an overturn occurs during the rotation process and the slide plate 3 cannot slide, the stainless steel plate 10 also cannot slide, resulting in the failure of the rotational relationship between the upper support plate 1 and the lower support plate 2 and the inability to complete the rotation work. In this application, the slide plate 3 and the stainless steel plate 10 are separately arranged. When rotating, as long as one of the slide plate 3 and the stainless steel plate 10 can keep sliding, the rotating support can operate normally, improving the overall working efficiency of the rotating support.

[0031] Specifically, a rubber plate 9 is also arranged between the lower support plate 2 and the stainless steel plate 10. When the upper support plate 1 is unevenly stressed, the rubber plate 9 provides a buffering effect to prevent the overall overturning of the support. Through the compression deformation of the elastic rubber plate, the support has a controllable rotation angle to achieve the leveling function.

[0032] In a specific embodiment, a gear ring 15 is provided at the outer edge of the upper support plate. A gear ring protective cover is provided above the gear ring 15. A number of driving gears are provided outside the gear ring 15. The driving gears are connected to a gearbox, and the power source is provided by a motor or a hydraulic motor. The bridge is rotated by the engagement of the gear driving device (i.e., the motor or the hydraulic motor) with the gear ring 15 on the upper seat plate 2 of the rotating support, and the bridge is rotated. It is applicable to the rotation of the bridge pier top in a narrow space and the rotation of the bottom of a small-tonnage bridge, which will greatly improve the construction progress and construction accuracy, and effectively reduce the construction cost. And a gear ring protective cover is provided above the gear ring 15, which provides an installation and operation space for the rotating drive device, and prevents the gear ring 15 from being partially filled with concrete during the concrete pouring process, resulting in abnormal use.

[0033] In a specific embodiment, when the upper support plate 1 is a convex spherical panel and the lower support plate 2 is a concave spherical panel, a polytetrafluoroethylene sliding plate 3 is provided on the surface of the concave spherical panel in contact with the convex spherical panel, and a stainless steel spherical panel is provided on the upper surface of the convex spherical panel. A sliding plate 3 for reducing the friction coefficient is provided between the upper support plate 1 and the lower support plate 2 to improve the smoothness of rotation. Moreover, the concave spherical panel has the advantages of polytetrafluoroethylene wear resistance, small friction coefficient, high strength, etc. The stainless steel spherical panel bears the frictional movement and the main vertical load, and is durable.

[0034] In a specific embodiment, the tenon-mortise structure rotatable anti-overturning bearing further includes an intelligent control system. The intelligent control system includes a rotating bearing body force sensor module, a data acquisition and transmission module, a data analysis and processing module, and a control and warning module. The rotating bearing body force sensor module is used for collecting rotating body data; the data acquisition and transmission module is used for transmitting the rotating body data; the data analysis and processing module is used for comprehensively analyzing and processing the rotating body data; the control and warning module is used for system control and warning according to the analysis results of the data analysis and processing module. The tenon-mortise structure rotatable bearing provides vertical support and rotation functions, ensuring the stability of the bridge structure and enabling the successful completion of the rotating body construction. The rotating bearing body force sensor module usually adopts high-precision strain gauge type or piezoelectric sensors. Installed at the key parts of the bearing, it can sense and measure various forces borne by the bearing in real time, including vertical force, horizontal force, bending, etc. The data acquisition and transmission module is responsible for quickly and accurately collecting the signals output by the force sensors and transmitting the data to the data analysis and processing module by wired or wireless means. The data analysis and processing module uses advanced algorithms and models to analyze and process the collected data in real time, calculates key parameters such as the stress state and deformation of the bearing, and compares them with the preset safety standard values for control. When the stress or deformation of the bearing exceeds the safety value range according to the analysis, the control and warning module timely issues a warning signal to notify relevant personnel to take measures. At the same time, this module can also remotely control and adjust the working state of the bearing as needed. The tenon-mortise structure rotatable bearing and the intelligent control system can realize the real-time and accurate monitoring and control of the structural process, providing a strong guarantee for the safety and smooth implementation of the project.

[0035] In a specific embodiment, a hydraulic jacking device is further provided on the lower bearing plate 2 for controlling the lifting of the lower bearing plate 2.

[0036] In a specific embodiment, the hydraulic jacking device includes a hydraulic cylinder. The lower end of the lower bearing plate 2 extends into the hydraulic cylinder. The lower end of the lower bearing plate 2 has a flexible sealing structure. The flexible sealing structure divides the hydraulic cylinder chamber into upper and lower chambers. The lower chamber is connected to the hydraulic distribution valve 14 for injecting or discharging hydraulic oil into the lower chamber to control the lifting of the lower bearing plate 2. When installing the bearing, install the upper bearing plate embedded plate and the lower embedded plate. After the bridge rotates to the predetermined position, it is jacked up as a whole. The lower bearing plate 2 and all its upper components are jacked up to a certain height, and external components are used for support. The anti-overturning bearing is withdrawn from the middle of the upper and lower embedded plates. The voids generated are installed with a steel bar grid and filled with concrete, thereby reducing the construction cost, improving the economic benefit, and reducing the overall construction cost.

[0037] Specifically, the lower part of the lower support plate 2 is processed into a piston rod 8 of a large-diameter and small-stroke jack. A limit card slot 9 is provided on the piston rod 8, and a piston 11 (i.e., a flexible sealing structure) is provided at the top. An oil seal 12 is provided on the piston 11 to divide the hydraulic oil into two hydraulic chambers. The hydraulic cylinder houses the above-mentioned components, and a seal 13 is installed at the top to prevent hydraulic oil leakage. The hydraulic distribution valve 14 controls the supply of hydraulic oil to the chambers at both ends of the piston 11. The movement of the piston realizes the jacking and lowering functions of the piston rod 8 of the jack through the pressure transmission of the hydraulic oil. The jacking and lowering limit strokes of the tenon-mortise structure rotatable anti-overturning support jack are limited within the construction safety range by the limit card slot 9. The numerical control sensor 4 on the tenon-mortise structure rotatable anti-overturning support jack provides technical data for the rotation control system, which is used to monitor the displacement height difference on both sides of the support, and determine the support balance adjustment parameters through this difference. The tenon-mortise structure realizes the anti-overturning function, is suitable for the cyclic use of the bridge rotation support, and the overall jacking of the bridge during the rotation of the bridge pier top.

[0038] The above are only the preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the present invention. The above is only the preferred implementation manner of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the technical principle of the present invention, several improvements and modifications can be made, and these improvements and modifications should also be regarded as the protection scope of the present invention.

Claims

1. A tenon and mortise structure rotatable anti-overturning support, characterized in that, It includes an upper support plate (1) and a lower support plate (2). The upper support plate (1) can rotate relative to the lower support plate (2). At the edge of the upper support plate (1), a mortise and tenon connection part (101) extends downward along its axial direction. The mortise and tenon connection part (101) is distributed circumferentially along the upper support plate (1). On the side of the mortise and tenon connection part (101) close to the outer wall of the lower support plate (2), there are a number of first mortises (1011) arranged in parallel at intervals. The cross-section of the first mortise (1011) is semi-circular or square. The lower support plate (2) has a second mortise (201) adapted to the first mortise (1011). The first mortise (1011) and the second mortise (201) enclose a circular slideway or a square slideway. A number of steel balls are filled in the circular slideway, and a square slider is filled in the square slideway.

2. The tenon-mortise structure rotatable anti-overturning support according to claim 1, characterized in that On the side of the lower support plate (2) close to the upper support plate (1), a pin (6) protruding from the lower support plate (2) is provided. The upper support plate (1) has a cavity adapted to the pin (6).

3. The mortise and tenon structure rotatable anti-overturning support according to claim 1, wherein There are two first mortises (1011), one of which has a semi-circular cross-section and the other has a square cross-section.

4. The mortise and tenon structure rotatable anti-overturning support according to claim 1, characterized in that, When the upper support plate (1) and the lower support plate (2) are of a double-plane rotation structure, the upper support plate (1) and the lower support plate (2) are rotationally connected through an intermediate connecting plate. A sliding plate (3) is arranged between the upper support plate (1) and the intermediate connecting plate, and a stainless steel plate (10) is arranged between the intermediate connecting plate and the lower support plate (2).

5. The mortise and tenon structure rotatable anti-overturning support according to claim 1, characterized in that, A gear ring (15) is arranged at the outer edge of the upper support plate. A gear ring protective cover is arranged on the upper part of the gear ring (15). A number of driving gears are arranged on the outside of the gear ring (15). The driving gears are connected to a gearbox, and its power source is provided by a motor or a hydraulic motor.

6. The tenon-mortise structure rotatable anti-overturning support according to claim 1, characterized in that, When the upper support plate (1) is a convex spherical panel and the lower support plate (2) is a concave spherical panel, a polytetrafluoroethylene sliding plate is arranged on the surface of the concave spherical panel in contact with the convex spherical panel, and a stainless steel spherical panel is arranged on the upper surface of the convex spherical panel.

7. The mortise and tenon structure rotatable anti-overturning support according to claim 1, characterized in that, It also includes an intelligent control system. The intelligent control system includes a rotating support body force sensor module, a data acquisition and transmission module, a data analysis and processing module, and a control and warning module. The rotating support body force sensor module is used for collecting rotating data; the data acquisition and transmission module is used for transmitting the rotating data; the data analysis and processing module is used for comprehensively analyzing and processing the rotating data; the control and warning module is used for system control and warning according to the analysis results of the data analysis and processing module.

8. The tenon-mortise structure rotatable anti-overturning support according to claim 1, characterized in that, A hydraulic jacking device is also arranged on the lower support plate (2) for controlling the lifting of the lower support plate (2).

9. The mortise and tenon structure rotatable anti-overturning support according to claim 8, characterized in that, The hydraulic jacking device includes a hydraulic cylinder. The lower end of the lower support plate (2) extends into the hydraulic cylinder. The lower end of the lower support plate (2) is provided with a flexible sealing structure. The flexible sealing structure divides the hydraulic cylinder chamber into upper and lower chambers. The lower chamber is communicated with a hydraulic distribution valve (14) for injecting or discharging hydraulic oil into the lower chamber to control the lifting of the lower support plate (2).

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