Friction pendulum spherical support

Abstract

The utility model discloses a friction pendulum spherical support, which relates to the technical field of spherical supports, and comprises a basin body and a connecting plate, a damping block is arranged in the basin body, a bottom steel plate is arranged above the damping block, a supporting assembly used for elastically supporting the bottom steel plate is arranged in the damping block, a first hemispherical groove is formed in the upper surface of the bottom steel plate, and a second hemispherical groove is formed in the lower surface of the bottom steel plate. A top steel plate is fixedly connected to the connecting plate, and a second hemispherical groove is formed in the bottom face of the top steel plate. The shock absorption device is reasonable in design structure, the shock absorption block made of rubber is arranged in the basin body, necessary elasticity is provided to absorb impact force and vibration generated by a bridge when vehicles pass through or under other dynamic loads, the buffering capacity for the impact force is further enhanced by means of the spring in the supporting assembly, and the shock absorption device is matched with the damping ring for use, so that the shock absorption effect is improved. Effective damping and dispersion of longitudinal impact force are achieved, the damping efficiency of the support is remarkably improved, and the service life of the support is remarkably prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of spherical bearings, in particular to a friction pendulum spherical bearing. Background Technique

[0002] The friction pendulum spherical bearing realizes the shock absorption of the bridge by using the principle of a pendulum clock. The tensile friction pendulum spherical bearing is generally divided into a unidirectional type, a bidirectional type and a fixed type. It moves along the transverse bridge direction and the longitudinal bridge direction through a stainless steel plate, reducing the stress burden at the bottom of the bridge, thereby achieving the shock absorption effect on the bridge.

[0003] In the Chinese patent with the publication number CN210341614U, an anti-pull friction pendulum support is disclosed. It cuts off the bolts during an earthquake so that the bearing can move along the directions of A and B, realizing the shock absorption effect on the bridge. At the same time, there is a limit between the stainless steel plate and the lower bearing through a baffle, making the device have anti-pull property and avoiding large collisions among the components in the device when the bridge vibrates.

[0004] Although the above device achieves the anti-pull effect through the limit between the baffle and the lower bearing, however, due to the impact and vibration generated on the upper bearing when the bridge is in use due to the passage of vehicles, it is very difficult to buffer the impact force only by the movement of the wear-resistant plate on the spherical crown. Moreover, the vibration of the spherical crown will also cause grooves on the plane of the wear-resistant plate, and in severe cases, the wear-resistant plate will be stuck on the spherical crown, affecting the support effect on the bridge. For this reason, we provide a friction pendulum spherical bearing to solve the above problems. Content of the Utility Model

[0005] I) Technical Problems to be Solved

[0006] The purpose of the utility model is to make up for the deficiencies of the prior art and provide a friction pendulum spherical bearing.

[0007] II) Technical Solutions

[0008] To achieve the above purpose, the utility model provides the following technical solutions: A friction pendulum spherical bearing, comprising a basin body and a connecting plate. A shock-absorbing block is arranged in the basin body. A bottom steel plate is placed above the shock-absorbing block. A support assembly for elastically supporting the bottom steel plate is arranged in the shock-absorbing block. A first hemispherical groove is formed on the upper surface of the bottom steel plate. A top steel plate is fixedly connected to the connecting plate. A second hemispherical groove is formed on the bottom surface of the top steel plate. A spherical crown is arranged between the first hemispherical groove and the second hemispherical groove. A second wear-resistant plate and a first wear-resistant plate are respectively arranged on the upper surface and the bottom surface of the spherical crown.

[0009] Further, a base plate is mounted on the basin body through bolts. A first installation groove is formed in the base plate. A top seat plate is mounted on the connecting plate through bolts. A second installation groove is formed in the top seat plate.

[0010] Further, a convex block is fixedly connected to the shock-absorbing block. A positioning groove is formed in the bottom surface of the bottom steel plate, and the convex block is inserted into the positioning groove.

[0011] Further, through grooves are formed in both the shock-absorbing block and the convex block, and the two through grooves are communicated with each other.

[0012] Further, the support assembly includes a receiving cylinder. Sliding holes are formed in both the upper surface and the bottom surface of the receiving cylinder. Slide rods are slidably connected in the two sliding holes. Fixing blocks are fixedly connected to the mutually remote ends of the two slide rods, and the two fixing blocks are respectively mounted on the inner bottom wall of the basin body and abutted against the bottom surface of the bottom steel plate. Slide seats are fixedly connected to the mutually close ends of the two slide rods. Damping rings are mounted on the two slide seats, and the damping rings abut against the inner wall of the receiving cylinder.

[0013] Further, springs are sleeved on the two slide rods, and the two ends of each spring are respectively fixedly connected to the receiving cylinder and the slide seat.

[0014] III) Beneficial effects:

[0015] Compared with the prior art, the friction pendulum ball-type bearing has the following beneficial effects:

[0016] By arranging a shock-absorbing block made of rubber material in the basin body, the present utility model not only provides necessary elasticity to absorb the impact force and vibration generated by the bridge under vehicle passing or other dynamic loads, but also further enhances the buffering ability for the impact force by relying on the springs in the support assembly. With the use of the damping rings, effective damping and dispersion of the longitudinal impact force are realized, and the shock-absorbing efficiency and service life of the bearing are significantly improved. Description of the drawings

[0017] Figure 1 is the front view of the present utility model;

[0018] Figure 2 is the cross-sectional view of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the support assembly of the present utility model.

[0020] In the figure: 1, basin body; 2, shock absorber block; 3, convex block; 4, through groove; 5, bottom steel plate; 6, positioning groove; 7, first hemispherical groove; 8, top steel plate; 9, second hemispherical groove; 10, spherical crown; 11, first wear-resistant plate; 12, second wear-resistant plate; 13, connecting plate; 14, base plate; 15, first installation groove; 16, top seat plate; 17, second installation groove; 18, storage cylinder; 19, sliding hole; 20, sliding rod; 21, sliding seat; 22, damping ring; 23, spring; 24, fixing block. Specific implementation mode

[0021] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0022] As Figures 1-3 shown, the present invention provides a technical solution: a friction pendulum ball-type bearing, including a basin body 1 and a connecting plate 13. A base plate 14 is installed on the basin body 1 through bolts. A first installation groove 15 is provided on the base plate 14. The base plate 14 can be fixed by installing an anchor rod in the first installation groove 15. A top seat plate 16 is installed on the connecting plate 13 through bolts. A second installation groove 17 is provided on the top seat plate 16. The top seat plate 16 can be fixed by installing an anchor rod in the second installation groove 17.

[0023] A shock absorber block 2 is arranged in the basin body 1. The shock absorber block 2 is made of rubber material and has certain elasticity. A bottom steel plate 5 is placed above the shock absorber block 2. A convex block 3 is fixedly connected to the shock absorber block 2. A positioning groove 6 is provided on the bottom surface of the bottom steel plate 5, and the convex block 3 is inserted into the positioning groove 6. The bottom steel plate 5 placed on the shock absorber block 2 can be positioned through the convex block 3 and the positioning groove 6. The shock absorber block 2 can directly buffer the force on the bottom steel plate 5.

[0024] Through grooves 4 are provided on both the shock absorber block 2 and the convex block 3, and the two through grooves 4 are communicated. The through groove 4 is located at the central position of the shock absorber block 2 and the convex block 3.

[0025] A support assembly for elastically supporting the bottom steel plate 5 is provided inside the shock absorber block 2. The support assembly includes a receiving cylinder 18. Sliding holes 19 are formed in both the upper surface and the bottom surface of the receiving cylinder 18. A sliding rod 20 is slidably connected in each of the two sliding holes 19. Fixing blocks 24 are fixedly connected to the ends of the two sliding rods 20 away from each other. The two fixing blocks 24 are respectively installed on the inner bottom wall of the basin body 1 and abutted against the bottom surface of the bottom steel plate 5. Sliding seats 21 are fixedly connected to the ends of the two sliding rods 20 close to each other. Damping rings 22 are installed on both sliding seats 21, and the damping rings 22 abut against the inner wall of the receiving cylinder 18.

[0026] When a longitudinal impact force appears on the connecting plate 13, the force can be transmitted to the fixing block 24 through the bottom steel plate 5, so that the fixing block 24 drives the sliding rod 20 to slide at the sliding hole 19, and the damping effect on the impact force is achieved through the damping ring 22. Springs 23 are sleeved on both sliding rods 20. The two ends of the spring 23 are respectively fixedly connected to the receiving cylinder 18 and the sliding seat 21, and the impact force is buffered by the deformation of the spring 23 after being stressed.

[0027] A first hemispherical groove 7 is formed on the upper surface of the bottom steel plate 5. A top steel plate 8 is fixedly connected to the connecting plate 13. A second hemispherical groove 9 is formed on the bottom surface of the top steel plate 8. A spherical crown 10 is arranged between the first hemispherical groove 7 and the second hemispherical groove 9. A second wear-resistant plate 12 and a first wear-resistant plate 11 are respectively arranged on the upper surface and the bottom surface of the spherical crown 10.

[0028] The top steel plate 8 swings on the spherical crown 10 through the second hemispherical groove 9 and the second wear-resistant plate 12, while the bottom steel plate 5 can swing on the spherical crown 10 through the first hemispherical groove 7 and the first wear-resistant plate 11. The shock absorption of the bridge is achieved by the swing of the bottom steel plate 5 or the swing of the top steel plate 8.

[0029] It should be noted that in this text, the orientation or positional relationship indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model; the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance. In addition, unless otherwise clearly specified and defined, the terms "fixedly installed", "installed", "connected", "coupled" should be understood in a broad sense. For example, "installed" can be a fixed connection, a detachable connection, or an integral connection; "connected" can be a mechanical connection or an electrical connection; "coupled" can be a direct connection, an indirect connection through an intermediate medium, or an internal connection between two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0030] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. A friction pendulum ball bearing, comprising a basin (1) and a connecting plate (13), characterized in that: A shock absorbing block (2) is arranged in the basin body (1), a bottom steel plate (5) is placed above the shock absorbing block (2), a support assembly for elastically supporting the bottom steel plate (5) is arranged in the shock absorbing block (2), a first hemispherical groove (7) is provided on the upper surface of the bottom steel plate (5), a top steel plate (8) is fixedly connected to the connecting plate (13), a second hemispherical groove (9) is provided on the bottom surface of the top steel plate (8), a spherical cap (10) is arranged between the first hemispherical groove (7) and the second hemispherical groove (9), and a second wear-resistant plate (12) and a first wear-resistant plate (11) are respectively provided on the upper surface and the bottom surface of the spherical cap (10); The support assembly comprises a storage tube (18), the upper surface and the bottom surface of the storage tube (18) are provided with sliding holes (19), and two sliding holes (19) are slidably connected with sliding rods (20), and the ends of the two sliding rods (20) that are away from each other are fixedly connected with fixed blocks (24), and the two fixed blocks (24) are respectively installed on the inner bottom wall of the basin body (1) and abut against the bottom surface of the bottom steel plate (5), and the ends of the two sliding rods (20) that are close to each other are fixedly connected with sliding seats (21), and damping rings (22) are installed on the two sliding seats (21), and the damping rings (22) abut against the inner wall of the storage tube (18), and the two sliding rods (20) are sleeved with springs (23), and the two ends of the springs (23) are respectively fixedly connected to the storage tube (18) and the sliding seat (21).

2. A friction pendulum ball bearing according to claim 1, characterized in that: A base plate (14) is mounted on the basin body (1) by means of bolts, and a first mounting groove (15) is provided on the base plate (14); a top seat plate (16) is mounted on the connecting plate (13) by means of bolts, and a second mounting groove (17) is provided on the top seat plate (16).

3. The friction pendulum ball bearing according to claim 1, characterized in that: A convex block (3) is fixedly connected to the shock absorbing block (2), a positioning groove (6) is provided on the bottom surface of the bottom steel plate (5), and the convex block (3) is inserted into the positioning groove (6).

4. A friction pendulum ball bearing according to claim 3, characterized in that: A through groove (4) is provided on both the shock absorbing block (2) and the protruding block (3), and the two through grooves (4) are connected.

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