Bridge support with good wear resistance

Abstract

The utility model relates to the technical field of bridge construction, in particular to a bridge support with good wear resistance, which comprises a lower support plate, a spherical crown is arranged in the lower support plate, an upper support plate attached to the spherical crown is arranged at the top of the spherical crown, two opposite sides of the upper support plate are respectively in a convex edge shape, and the spherical crown is arranged on the lower support plate. A second wear-resistant layer is arranged at the convex edge of the upper support plate, and a first wear-resistant layer in contact with the second wear-resistant layer is arranged on the inner side wall of the lower support plate. The second wear-resistant layer is arranged on the convex edge of the upper support plate, and the first wear-resistant layer is arranged on the inner side wall of the lower support plate, so that the second wear-resistant layer and the first wear-resistant layer are in contact friction with each other, the upper support plate and the lower support plate are more wear-resistant, internal corrosion is reduced, and the overall service life of the bridge support is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of bridge construction, in particular to a bridge support with good wear resistance. Background Art

[0002] In the existing bridge bearing structure, generally a lower bearing plate is installed on the bridge pier, a spherical crown is placed inside the lower bearing plate, an upper bearing plate is placed on the spherical surface of the top of the spherical crown, and the bridge is installed on the upper bearing plate. The movement potential energy of the bridge in all directions is eliminated by the relative movement friction between the upper bearing plate, the spherical crown and the lower bearing plate, so that the bridge remains stable. However, in the prior art, usually only the bearing surface is rust-proofed, and the contact surface between the upper bearing plate and the spherical crown, and the contact surface between the spherical crown and the lower bearing plate are treated or designed for wear resistance, while the friction contact surface between the upper bearing plate and the lower bearing plate is ignored. As a result, the contact surface between the upper bearing plate and the spherical crown, and the contact surface between the spherical crown and the lower bearing plate meet the wear resistance requirements, but the friction contact surface between the upper bearing plate and the lower bearing plate is exposed to the air, resulting in rust, and wear caused by friction during use, resulting in the overall service life of the bridge bearing still not significantly increasing or even decreasing. Utility Model Content

[0003] In order to address the deficiencies in the prior art, the utility model provides a bridge bearing with good wear resistance, comprising a lower bearing plate, a spherical crown is placed inside the lower bearing plate, an upper bearing plate fitted therewith is placed on the top of the spherical crown, the opposite sides of the upper bearing plate are respectively convex, a second wear-resistant layer is arranged at the convex edge of the upper bearing plate, and a first wear-resistant layer in contact with the second wear-resistant layer is arranged on the inner wall of the lower bearing plate.

[0004] Preferably, wear-resistant plates are respectively arranged between the spherical crown and the upper support plate and between the spherical crown and the lower support plate; the wear-resistant plate between the spherical crown and the upper support plate is fixedly connected to the spherical crown or the upper support plate; and the wear-resistant plate between the spherical crown and the lower support plate is fixedly connected to the spherical crown or the lower support plate.

[0005] Preferably, the second wear-resistant layer is polytetrafluoroethylene sprayed on the convex edge of the upper support plate.

[0006] Preferably, the first wear-resistant layer is a metal coating sprayed on the inner side wall of the lower support plate.

[0007] Preferably, the second wear-resistant layer is a metal coating sprayed on the convex edge of the upper support plate.

[0008] Preferably, the first wear-resistant layer may also be a stainless steel plate wrapping the inner side wall of the lower support plate.

[0009] The utility model has the following beneficial effects:

[0010] By setting a second wear-resistant layer on the convex edge of the upper bearing plate and a first wear-resistant layer on the inner wall of the lower bearing plate, the second wear-resistant layer and the first wear-resistant layer are in contact and friction with each other, making the upper bearing plate and the lower bearing plate more wear-resistant, reducing internal corrosion, and thus extending the overall service life of the bridge bearing. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a schematic diagram of the overall structure provided by the utility model.

[0012] Attached Figure 1 The structures represented by the labels are listed below:

[0013] 1. Lower bearing plate; 101. First wear-resistant layer; 2. Ball crown; 3. Upper bearing plate; 301. Second wear-resistant layer. DETAILED DESCRIPTION

[0014] The principles and features of the present invention are described below. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0015] It should be noted that when a part or component is considered to be "connected", "located", or "assembled" on another part or component, it may be directly disposed on the other part or component or there may be a central part or component at the same time. The terms "left", "right", "upper", "lower" and similar expressions used herein are for illustrative purposes only.

[0016] In a specific embodiment, Figure 1 As shown, a bridge bearing with good wear resistance includes a lower bearing plate 1, a spherical crown 2 is placed inside the lower bearing plate 1, an upper bearing plate 3 fitted therewith is placed on the top of the spherical crown 2, the opposite sides of the upper bearing plate 3 are respectively convex, a second wear-resistant layer 301 is arranged at the convex edge of the upper bearing plate 3, and a first wear-resistant layer 101 in contact with the second wear-resistant layer 301 is arranged on the inner wall of the lower bearing plate 1.

[0017] In this embodiment, wear-resistant plates are respectively arranged between the spherical crown 2 and the upper support plate 3 and between the spherical crown 2 and the lower support plate 1. The wear-resistant plate between the spherical crown 2 and the upper support plate 3 is fixedly connected to the spherical crown 2 or the upper support plate 3, and the wear-resistant plate between the spherical crown 2 and the lower support plate 1 is fixedly connected to the spherical crown 2 or the lower support plate 1. The spherical crown 2 and the upper support plate 3 and the spherical crown 2 and the lower support plate 1 are made more wear-resistant. Specifically, support plate grooves are respectively provided at the bottom of the spherical crown 2 and the bottom of the upper support plate 3, and the wear-resistant plates are embedded in the support plate grooves for fixing.

[0018] In this embodiment, the second wear-resistant layer 301 is polytetrafluoroethylene sprayed on the convex edge of the upper support plate 3. Polytetrafluoroethylene is a high molecular polymer with excellent properties. The perfluoro bonds in its molecular chain make the CF bond energy in the molecular chain greater than the CH bond energy. Therefore, it has very good wear resistance, especially in harsh environments such as high temperature and high pressure, the wear resistance of polytetrafluoroethylene is more significant.

[0019] In this embodiment, the first wear-resistant layer 101 is a metal coating sprayed on the inner wall of the lower support plate 1. The metal coating is an aluminum alloy coating, which has high bonding strength and adhesive wear resistance. It has the characteristics of high density, high hardness, and strong wear resistance, and its wear resistance is better than that of manganese steel or high chromium cast iron.

[0020] Furthermore, the second wear-resistant layer 301 is also a metal coating sprayed on the convex edge of the upper support plate 3 .

[0021] The above-mentioned bridge bearings with good wear resistance can be further optimized and / or improved according to actual needs:

[0022] The first wear-resistant layer 101 may also be a stainless steel plate that wraps the inner wall of the lower support plate 1. This method is more convenient for construction and saves construction costs.

[0023] To sum up: by setting a second wear-resistant layer 301 on the convex edge of the upper bearing plate 3 and setting a first wear-resistant layer 101 on the inner wall of the lower bearing plate 1, the second wear-resistant layer 301 and the first wear-resistant layer 101 are in contact and friction with each other, making the upper bearing plate 3 and the lower bearing plate 1 more wear-resistant, reducing internal corrosion, and thus extending the overall service life of the bridge bearing.

[0024] The above are only preferred embodiments of the present invention and are not intended to limit the present invention in any form. Any ordinary technician in the industry can smoothly implement the present invention as shown in the drawings and above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the present invention using the technical content disclosed above are all equivalent embodiments of the present invention. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the present invention are still within the protection scope of the technical solution of the present invention.

Claims

1. A bridge bearing with good wear resistance, characterized in that: The invention comprises a lower support plate (1), wherein a spherical crown (2) is placed inside the lower support plate (1), an upper support plate (3) in contact with the spherical crown (2) is placed on the top of the spherical crown (2), the two opposite sides of the upper support plate (3) are respectively convex, a second wear-resistant layer (301) is arranged at the convex edge of the upper support plate (3), and a first wear-resistant layer (101) in contact with the second wear-resistant layer (301) is arranged on the inner wall of the lower support plate (1).

2. A bridge bearing with good wear resistance according to claim 1, characterized in that: Wear-resistant plates are respectively arranged between the spherical crown (2) and the upper support plate (3) and between the spherical crown (2) and the lower support plate (1); the wear-resistant plate between the spherical crown (2) and the upper support plate (3) is fixedly connected to the spherical crown (2) or the upper support plate (3); and the wear-resistant plate between the spherical crown (2) and the lower support plate (1) is fixedly connected to the spherical crown (2) or the lower support plate (1).

3. A bridge bearing with good wear resistance according to claim 1, characterized in that: The second wear-resistant layer (301) is polytetrafluoroethylene sprayed on the convex edge of the upper support plate (3).

4. A bridge bearing with good wear resistance according to claim 1, characterized in that: The first wear-resistant layer (101) is a metal coating sprayed on the inner wall of the lower support plate (1).

5. A bridge bearing with good wear resistance according to claim 4, characterized in that: The second wear-resistant layer (301) is a metal coating sprayed on the convex edge of the upper support plate (3).

6. A bridge bearing with good wear resistance according to claim 3, characterized in that: The first wear-resistant layer (101) may also be a stainless steel plate that wraps the inner side wall of the lower support plate (1).

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