Steel connecting bridge girder support
By introducing layered rubber bearings, guide mechanisms, limiting devices and lubrication systems, as well as anti-rust coatings into the steel bridge main beam support, the problems of insufficient load-bearing, wear resistance and rust resistance are solved, and the bearing's high load-bearing, low wear and long life are achieved.
Patent Information
- Application Number
- CN202421620632.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-10
- Publication Date
- 2025-07-11
- Estimated Expiration
- 2034-07-10
AI Technical Summary
The existing steel bridge main beam support has shortcomings in load-bearing capacity, wear resistance and rust resistance, resulting in short service life and high maintenance costs.
The rubber bearing, guide mechanism, limiting device and lubrication system are adopted with a hierarchical structure, and the anti-rust coating is applied to the surface of the bearing plate. The load bearing capacity is improved by embedding thin steel plates. The guide mechanism provides precise guidance, the limiting device prevents excessive displacement, the lubrication system reduces friction, and the epoxy resin coating prevents rust.
It significantly improves the bearing capacity and wear resistance, enhances the anti-rust performance, reduces wear rate and maintenance costs, extends service life and improves the safety and stability of the bridge.
Smart Images
Figure CN223088268U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of bridge engineering, and particularly relates to a main girder bearing of a steel connecting bridge. Background Technique
[0002] With the continuous development of bridge construction, steel connecting bridges are widely used due to their structural characteristics and excellent spanning ability. In the construction of steel connecting bridges, the main girder bearing, as an important part of the bridge, bears the weight of the bridge and allows the bridge to make small displacements under the action of natural factors such as temperature changes and earthquakes. However, the existing main girder bearings often have problems such as insufficient bearing capacity, poor wear resistance, and poor rust prevention performance. To solve the above problems, the utility model proposes a new type of main girder bearing for steel connecting bridges. Summary of the Invention
[0003] To solve the above problems, the utility model discloses a main girder bearing for a steel connecting bridge, which includes a bearing plate, a rubber bearing, and a guiding mechanism. The bearing plate includes an upper bearing plate and a lower bearing plate. The rubber bearing is arranged between the upper bearing plate and the lower bearing plate. The guiding mechanism includes a guiding plate and guiding wheels. The guiding plate is fixed on the side surface of the upper bearing plate, and the guiding wheels are installed on the lower bearing plate. Limit blocks are fixed at the four corners of the upper bearing plate, and limit bolts are arranged at the corresponding positions of the lower bearing plate and the limit blocks. The limit bolts pass through the lower bearing plate. The main girder bearing of the steel connecting bridge of the utility model not only improves the bearing capacity and wear resistance of the bearing through reasonable structural design, but also enhances the rust prevention performance and extends the service life. At the same time, the setting of the lubrication system reduces the friction during the sliding process of the bearing, improves the sliding performance and durability. Therefore, the main girder bearing of the steel connecting bridge of the utility model has significant advantages and broad application prospects in practical applications.
[0004] To achieve the above object, the technical solution of the utility model is as follows:
[0005] A main girder bearing for a steel connecting bridge, which includes a bearing plate, a rubber bearing, and a guiding mechanism. The bearing plate includes an upper bearing plate and a lower bearing plate. The upper bearing plate is used to connect with the bottom surface of the main girder of the steel connecting bridge, and the lower bearing plate is used to be installed on a pier or a bridge abutment; the rubber bearing is arranged between the upper bearing plate and the lower bearing plate. The guiding mechanism includes a guiding plate and guiding wheels, which are used to control the displacement of the bearing in the horizontal direction; the guiding plate is fixed on the side surface of the upper bearing plate, and the guiding wheels are installed on the lower bearing plate. Limit blocks are fixed at the four corners of the upper bearing plate, and limit bolts are arranged at the corresponding positions of the lower bearing plate and the limit blocks. The limit bolts pass through the lower bearing plate, which is used to prevent the bearing from having excessive displacement or overturning.
[0006] As an improvement of the present utility model, the rubber bearing is a hierarchical structure, the rubber bearing includes rubber and thin steel plates, and the thin steel plates are arranged in the middle of the rubber.
[0007] As an improvement of the present utility model, an adhesive layer is provided between the rubber bearing and the upper bearing plate and the lower bearing plate.
[0008] As an improvement of the present utility model, the steel continuous bridge main beam bearing further includes a lubrication system for reducing the frictional resistance during the movement of the bearing. The lubrication system includes an oil groove and an oil pump. The oil groove is arranged on the guide plate. The oil pump is connected to the oil groove through a pipeline. The guide wheel is provided with a bearing to reduce the frictional force between the guide wheel and the guide plate.
[0009] As an improvement of the present utility model, the surface of the bearing plate is provided with an anti-rust coating, and the anti-rust coating adopts epoxy resin paint.
[0010] The beneficial effects of the present utility model are as follows:
[0011] (1) By adopting a rubber bearing with a hierarchical structure and embedding thin steel plates therein, the bearing capacity of the bearing is significantly improved in this application. This design enables the bearing to maintain good elasticity and stability while withstanding huge pressures, thus ensuring the safe operation of the bridge. The rubber bearing has good elasticity and shock absorption capacity, can effectively absorb and buffer the impact force received by the bridge, protect the bridge structure from damage, and at the same time extend the service life of the bridge.
[0012] (2) Through the design of the guiding mechanism and the limiting device in this application, the bearing of this application can provide precise guidance when the bridge has a small displacement, and prevent excessive displacement through the limiting block and the limiting bolt when necessary, so as to maintain the stability of the bridge.
[0013] (3) This application is provided with a lubrication system, which reduces the friction between the guide wheel and the guide plate, reduces the wear rate, and improves the service life and sliding performance of the bearing. It not only reduces the maintenance cost, but also enhances the reliability of the bearing during long-term use. At the same time, the anti-rust coating on the surface of the bearing plate adopts epoxy resin paint, which has excellent anti-rust effect and durability. It effectively prevents the decline of the bearing performance caused by rust, and further enhances the service life and safety of the bearing. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic structural diagram of the present utility model.
[0015] Figure 2 It is a schematic structural diagram of the rubber bearing described in the present utility model.
[0016] LIST OF REFERENCE NUMERALS IN THE DRAWINGS:
[0017] 1. Upper bearing plate; 2. Lower bearing plate; 3. Rubber bearing; 101. Guide plate; 102. Limit block; 201. Guide wheel; 202. Limit bolt; 301. Rubber; 302. Thin steel plate; 303. Adhesive layer; 1011. Oil groove; 1012. Oil pump. Detailed implementation mode
[0018] The following further clarifies the present invention in conjunction with the accompanying drawings and specific implementation modes. It should be understood that the following specific implementation modes are only used to illustrate the present invention and not to limit the scope of the present invention. It should be noted that the terms "front", "rear", "left", "right", "up" and "down" used in the following description refer to the directions in the accompanying drawings, and the terms "inside" and "outside" respectively refer to the directions towards or away from the geometric center of a specific component.
[0019] As shown in the figure, a main girder bearing of a steel continuous bridge according to the present invention includes a bearing plate, a rubber bearing 3, and a guiding mechanism. The bearing plate includes an upper bearing plate 1 and a lower bearing plate 2. The upper bearing plate 1 is used to connect with the bottom surface of the main girder of the steel continuous bridge, and the lower bearing plate 2 is used to be installed on a pier or a bridge abutment; the rubber bearing 3 is arranged between the upper bearing plate 1 and the lower bearing plate 2. The guiding mechanism includes a guide plate 101 and a guide wheel 201, which are used to control the displacement of the bearing in the horizontal direction; the guide plate 101 is fixed on the side surface of the upper bearing plate 1, the guide wheel 201 is installed on the lower bearing plate 2, limit blocks 102 are fixed at the four corners of the upper bearing plate 1, and limit bolts 202 are arranged at the corresponding positions of the lower bearing plate 2 and the limit blocks 102. The limit bolts 202 pass through the lower bearing plate 2 to prevent the bearing from having excessive displacement or flipping.
[0020] The rubber bearing 3 of the present invention is a hierarchical structure. The rubber bearing 3 includes rubber 301 and a thin steel plate 302, and the thin steel plate 302 is arranged in the middle of the rubber 301.
[0021] An adhesive layer 303 is provided between the rubber bearing 3 of the present invention and the upper bearing plate 1 and the lower bearing plate 2.
[0022] The main girder bearing of the steel continuous bridge of the present invention further includes a lubrication system, which is used to reduce the frictional resistance during the movement of the bearing. The lubrication system includes an oil groove 1011 and an oil pump 1012. The oil groove 1011 is arranged on the guide plate 101, the oil pump 1012 is connected to the oil groove 1011 through a pipeline, and the guide wheel 201 is provided with a bearing to reduce the frictional force between the guide wheel 201 and the guide plate 101.
[0023] The surface of the bearing plate of the present invention is provided with an anti-rust coating, and the anti-rust coating adopts an epoxy resin coating.
[0024] Specifically, the working process of the present invention is as follows:
[0025] First, install the lower bearing plate 2 on the pier or bridge abutment and ensure its stability; then place the rubber bearing 3 on the lower bearing plate 2 and fix it through the adhesive layer 303; next, place the upper bearing plate 1 on the rubber bearing 3 and position it through the limit block 102 and the limit bolt 202; finally, install the guiding mechanism and the lubrication system. During the use of the bridge, the rubber bearing 3 plays a role in buffering and shock isolation. When the bridge generates displacement due to external forces (such as wind force, temperature change, etc.), the guide wheel 201 will roll along the guide plate 101 to ensure the smooth progress of the displacement. At the same time, the lubrication system will continuously provide lubrication for the guide plate 101 and the guide wheel 201 to reduce the friction force.
[0026] It should be noted that the drawings only illustrate the technical idea of the present utility model, and the protection scope of the present utility model cannot be limited by this shape. For those of ordinary skill in the art, without departing from the principle of the present utility model, several improvements and retouches can be made, and these improvements and retouches all fall within the protection scope of the claims of the present utility model.
Claims
1. A main beam support for a steel continuous bridge, comprising a bearing plate, a rubber bearing, and a guiding mechanism, characterized in that: The bearing plate includes an upper bearing plate and a lower bearing plate. The rubber bearing is arranged between the upper bearing plate and the lower bearing plate. The guiding mechanism includes a guiding plate and guiding wheels. The guiding plate is fixed to the side surface of the upper bearing plate, and the guiding wheels are installed on the lower bearing plate. Limit blocks are fixed at the four corners of the upper bearing plate, and limit bolts are provided at positions corresponding to the limit blocks on the lower bearing plate, and the limit bolts pass through the lower bearing plate.
2. The steel continuous bridge main girder bearing according to claim 1, characterized in that: The rubber bearing is a hierarchical structure, and the rubber bearing includes rubber and thin steel plates, and the thin steel plates are arranged in the middle of the rubber.
3. The steel continuous bridge main girder support according to claim 2, wherein: An adhesive layer is provided between the rubber bearing and the upper bearing plate and the lower bearing plate.
4. The steel continuous bridge main girder bearing according to claim 1, characterized in that: The steel continuous bridge main beam bearing further includes a lubrication system. The lubrication system includes an oil groove and an oil pump. The oil groove is arranged on the guiding plate, the oil pump is connected to the oil groove through a pipeline, and the guiding wheels are provided with bearings.
5. The main beam support of the steel continuous bridge according to any one of claims 1-4, characterized in that: An anti-rust coating is provided on the surface of the bearing plate, and the anti-rust coating uses epoxy resin paint.