Damping support with slope adjusting function

Abstract

The utility model belongs to the technical field of bridge supports, and particularly relates to a damping support with a slope adjusting function. The novel support comprises a support body, a groove is formed in a lower support plate of the support body, a slope adjusting and damping mechanism is arranged in the groove, the slope adjusting and damping mechanism comprises an elastic damping body and a deformation capsule pad arranged on the upper side and / or the lower side of the elastic damping body, or the elastic damping body is wrapped by the deformation capsule pad, and the deformation capsule pad is filled with a gaseous or liquid medium. The novel support has the effective vertical damping function and the gradient adjusting function, and has the advantages of being simple in structure, convenient to manufacture and safe and stable to use.

Description

Technical Field

[0001] The utility model belongs to the technical field of bridge bearings, and specifically relates to a shock-absorbing bearing with a slope adjustment function. Background Technique

[0002] With the rapid development of bridge projects such as high-speed railways, highways, and urban overpasses in China, the role played by bridge bearings is becoming increasingly important. At present, there are a wide variety of bearing products. Among them, spherical bearings have gradually been widely used in highway and railway bridges and construction projects due to their excellent performance of large load-bearing capacity, large rotation angle, and long service life.

[0003] During actual use, affected by the superstructure, vehicles, and other impact loads, the spherical bearing will cause vibrations in its own structure. Especially in some stations and densely populated areas, the noise and vibrations generated during the vertical pressure-bearing process of the bridge bearing will affect people's normal life and movement. Such vibrations are mainly caused by vertical pressure-bearing, which not only accelerates the wear of the bridge bearing but also poses a hidden danger to the safe operation of the bridge. And due to the influence of bridge terrain, not every pier and abutment is of the same height. Therefore, it is necessary for the bearing to have a slope adjustment function on the basis of vertical shock absorption, so that the upper part of the bearing obtains a preset slope design. Content of the Utility Model

[0004] The purpose of the utility model is to provide a new type of bearing that can effectively absorb vertical shock and has a slope adjustment function, with the characteristics of simple structure, convenient manufacturing, and safe and stable use.

[0005] To achieve the above purpose, the technical solution adopted by the utility model is as follows:

[0006] A shock-absorbing bearing with a slope adjustment function, characterized in that: it includes a bearing body, a groove is provided on the lower bearing plate of the bearing body, and a slope adjustment and shock-absorbing mechanism is provided in the groove. The slope adjustment and shock-absorbing mechanism includes an elastic damping body, a deformation bladder provided on the upper side and / or the lower side of the elastic damping body, or the deformation bladder wraps the elastic damping body, and a gaseous or liquid medium is filled in the deformation bladder.

[0007] The additional technical features constituting the above-mentioned shock-absorbing bearing with a slope adjustment function further include:

[0008] - Both the elastic damping body and the deformation bladder are made of elastic rubber, and silica gel resin or inert gas is filled in the deformation bladder;

[0009] - The elastic damping body is composed of a high-elastic rubber matrix and metal reinforcing plates laminated in the high-elastic rubber matrix, or metal disc springs, leaf springs, or springs are embedded in the high-elastic rubber matrix; a metal wire mesh or a fiber reinforcement layer is embedded in the elastic rubber constituting the deformation bladder;

[0010] - A sealing rubber ring is sleeved on the upper part of the elastic damping body, or a circumferential clamping groove is arranged on the inner side of the groove of the lower support plate, and the sealing rubber ring is placed in the circumferential clamping groove;

[0011] - The deformation bladder pad is composed of a plurality of bladder bags arranged in a matrix, and adjacent bladder bags are integrally formed through their edges and a flow channel communicating with each other is arranged inside the edges;

[0012] - The support body is a plate type support body, a pot type support body, a spherical support body or a friction pendulum support body;

[0013] - The support body includes an upper support plate and a middle support plate. The bottom of the middle support plate is connected with the slope adjusting and shock absorbing mechanism, and the middle support plate and the lower support plate are connected through a vertical limiting mechanism. The vertical limiting mechanism is composed of flanges which are respectively arranged at the lower part of the middle support plate and the upper part of the groove of the lower support plate and are matched with each other;

[0014] - A lining plate is arranged between the upper support plate and the middle support plate, a first friction pair is arranged between the lining plate and the upper support plate, and a second friction pair is arranged between the lining plate and the middle support plate;

[0015] - The first friction pair is a plane friction pair; the second friction pair is a spherical friction pair, which is arranged between the spherical crown curved surface at the bottom surface of the lining plate and the spherical groove at the top surface of the middle support plate. Both the first friction pair and the second friction pair are composed of a stainless steel sliding plate and a wear-resistant plate, and the wear-resistant plate is composed of a modified polytetrafluoroethylene plate and a modified ultra-high molecular weight polyethylene plate;

[0016] - The outer parts of the first friction pair and the second friction pair are surrounded by a sealing ring, and the sealing ring is placed in the clamping groove of the upper support plate, the lining plate or the middle support plate.

[0017] Compared with the prior art, the shock absorbing support with slope adjusting function provided by the utility model has the following advantages: the lower support plate of the shock absorbing support is provided with a groove, and a slope adjusting and shock absorbing mechanism is arranged in the groove, which is composed of an elastic damping body and a deformation bladder pad arranged on the upper side and / or the lower side of the elastic damping body, or the elastic damping body is covered by the deformation bladder pad. That is, the elastic deformation effect of the elastic damping body (such as a rubber cylinder) is used to effectively reduce the vertical vibration impact and ensure the vertical bearing mechanical and damping deformation performance; at the same time, gaseous or liquid media are filled in the deformation bladder pads on both sides of the elastic damping body, which has a large buffer deformation space, and the self-adjustment of the support slope is realized through compression deformation, further enhancing the shock absorption and noise reduction effect of the support and prolonging the service life of the bridge support. It has the advantages of compact structure, convenient manufacturing, safety and durability. Description of the Drawings

[0018] Figure 1Schematic diagram of a shock-absorbing bearing structure with slope-adjusting function for the present utility model;

[0019] Figure 2 Schematic diagram of the shock-absorbing and height-adjusting mechanism of the bearing. Specific implementation manner

[0020] The following further details the structure and working principle of the novel shock-absorbing bearing provided by the present utility model with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the protection scope of the present utility model.

[0021] In the description of the present utility model, unless otherwise specified, the orientation or positional relationship indicated by terms such as "upper / middle / lower" is based on the orientation or positional relationship shown in the accompanying 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, and thus should not be construed as a limitation to the present utility model.

[0022] It should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "connection", and "setting / equipping" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. 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.

[0023] As Figure 1 shown, the structure of the novel shock-absorbing bearing with slope-adjusting function includes a bearing body. A groove 11 is provided on the lower bearing plate 1 of the bearing body, and a slope-adjusting and shock-absorbing mechanism is arranged in the groove 11. The slope-adjusting and shock-absorbing mechanism includes an elastic damping body 21, a deformation bladder 22 arranged on the upper side and / or lower side of the elastic damping body 21, or the deformation bladder 22 wraps the elastic damping body 21, and a gaseous or liquid medium 23 is filled in the deformation bladder 22.

[0024] Its working principle is as follows: The lower bearing plate 1 of the novel bearing is provided with a groove 11 for accommodating the shock-absorbing and slope-adjusting mechanism, which includes an elastic damping body 21 (high-elastic rubber column). When the bearing bears vertical load, the elastic damping body 21 compresses and deforms to buffer the vertical vibration impact, thereby reducing shock and noise. A deformation bladder 22 is arranged on the upper side of the elastic damping body 21, and a gaseous or liquid medium 23 is filled in the deformation bladder 22, which has a larger compression deformation space to meet the bridge slope change, realize slope adjustment self-adaptation, and improve the safety and stability of the bearing's vertical shock absorption.

[0025] It should be noted that the deformable bladder pad 22 can be arranged on the upper side of the elastic damping body 21, or on the lower side thereof, or the deformable bladder pad 22 can wrap the elastic damping body 21; when the deformable bladder pad 22 is located on both sides of the elastic damping body 21, it can be adhesively positioned with its surface or integrally formed.

[0026] In the structure of the shock absorber bearing with the slope adjustment function described above,

[0027] - Preferably, both the above-mentioned elastic damping body 21 and the deformable bladder pad 22 are made of elastic rubber to achieve synchronous elastic deformation and damping shock absorption effects. The deformable bladder pad 22 is filled with silicone resin or inert gas to make it more compressible than the elastic rubber body to meet the requirements of bridge slope adjustment;

[0028] - In order to further improve the damping buffer effect, the above-mentioned elastic damping body 21 is composed of a high-elastic rubber matrix 20 and a metal reinforcing plate 3 laminated in the high-elastic rubber matrix 20, or metal disc springs, leaf springs or springs are buried in the high-elastic rubber matrix 30. The rubber elastic body with a composite structure has better deformation performance and long-term and stable elastic damping effect;

[0029] A metal wire mesh or fiber reinforcement layer is buried in the elastic rubber constituting the above-mentioned deformable bladder pad 22 to improve the mechanical strength and structural toughness of the bladder wall, and the bearing impact and elastic deformation performance are long-term and stable;

[0030] - A sealing rubber ring 4 is sleeved on the upper part of the above-mentioned elastic damping body 21, or a circumferential clamping groove is arranged on the inner side of the groove 11 of the lower bearing plate 1, and the sealing rubber ring 4 is placed in the circumferential clamping groove. The dynamic seal between the elastic damping body 21 and the inner wall of the groove 11 is realized through the sealing rubber ring 4 to prevent foreign objects and water flow from entering the inside of the bearing, reduce intrusion corrosion and frictional damage, and improve the service life of the elastic damping body 21;

[0031] - As a preferred embodiment, as Figure 2 shown, the above-mentioned deformable bladder pad 22 is composed of a plurality of bladder packages 51 arranged in a matrix. Adjacent bladder packages 51 are integrally formed through their edges, and flow channels 52 communicating with each other are arranged inside the edges. The bladder packages 51 distributed in a matrix have a more balanced bearing capacity, are connected to each other through the flow channels 52, and the structure is more stable after compression deformation, and the slope adjustment is long-term and safe;

[0032] - The shock absorption and slope adjustment mechanism of this new type of bearing can be applied to various existing structural bridge bearings. For example, the bearing body can be a plate bearing body, a pot bearing body, a spherical bearing body or a friction pendulum bearing body, which is convenient for technical transformation of traditional bearings, improves the application range of this bearing, and has high market promotion value;

[0033] Specifically, taking the friction pendulum bearing as an example, the above-mentioned bearing body includes an upper bearing plate 101 and a middle bearing plate 102. The bottom of the middle bearing plate 102 is connected to the slope-adjusting and shock-absorbing mechanism. The middle bearing plate 102 is connected to the lower bearing plate 1 through a vertical limiting mechanism. The vertical limiting mechanism is composed of mating flanges (61, 62) respectively arranged at the lower part of the middle bearing plate 102 and the upper part of the groove 11 of the lower bearing plate 1. For example, the lower part of the middle bearing plate 102 has an outward flange 61, and the upper part of the groove 11 of the lower bearing plate 1 has an inward flange 62. The two flanges (61, 62) are staggered and laminated to form vertical limitation, enhancing the integrity of the internal structure of the bearing, and the bearing has better anti-pulling performance;

[0034] — Further, a lining plate 7 is arranged between the upper bearing plate 101 and the middle bearing plate 102, a first friction pair 71 between the lining plate 7 and the upper bearing plate 101, and a second friction pair 72 between the lining plate 7 and the middle bearing plate 102;

[0035] The above-mentioned first friction pair 71 is a plane friction pair, that is, a plane sliding friction is formed between the bottom surface of the upper bearing plate 101 and the top surface of the lining plate 7; the above-mentioned second friction pair 72 is a spherical friction pair, and a spherical sliding friction is formed between the spherical crown surface of the bottom surface of the lining plate 7 and the spherical groove 11 of the top surface of the middle bearing plate 102, and a friction pendulum structure is formed through the curved lining plate 7;

[0036] Preferably, the above-mentioned first friction pair 71 and second friction pair 72 are both composed of a stainless steel sliding plate and a wear-resistant plate. The wear-resistant plate is composed of a modified polytetrafluoroethylene plate and a modified ultra-high molecular weight polyethylene plate, having excellent sliding wear resistance, a long service life, safe and stable operation, and good economic durability;

[0037] — The above-mentioned first friction pair 71 and second friction pair 72 are surrounded by sealing rings (41, 42) on the outside. The sealing rings (41, 42) can be placed in the clamping grooves of the upper bearing plate 101, the lining plate 7 or the middle bearing plate 102, and can seal and isolate the friction pair structure to prevent corrosion by the external environment.

[0038] The above-mentioned embodiments are only used to illustrate the technical solutions of the present invention, and are not the limiting conditions for the implementation of the present invention. Therefore, any other modifications or equivalent replacements of the configuration dimensions and internal structures of the technical solutions of the present invention, as long as they do not depart from the spirit and scope of the technical solutions of the present invention, should be covered by the scope of the claims of the present invention.

Claims

1. A shock-absorbing support with slope adjustment function, characterized in that: It includes a support body, a lower support plate of the support body is provided with a groove, a slope adjustment and shock absorbing mechanism is provided in the groove, the slope adjustment and shock absorbing mechanism includes an elastic damping body, a deformable bag cushion arranged on the upper side and / or the lower side of the elastic damping body, or the deformable bag cushion covers the elastic damping body, and the deformable bag cushion is filled with a gaseous or liquid medium.

2. The shock-absorbing support with slope adjustment function according to claim 1, characterized in that: The elastic damping body or the deformable bag cushion is made of elastic rubber, and the deformable bag cushion is filled with silicone resin or inert gas.

3. The shock-absorbing support with slope adjustment function according to claim 2 is characterized in that: The elastic damping body is composed of a high-elastic rubber matrix and metal reinforced plates stacked in the high-elastic rubber matrix, or a metal disc spring, leaf spring or spring is embedded in the high-elastic rubber matrix; a metal wire mesh or fiber reinforcement layer is embedded in the elastic rubber constituting the deformable bag cushion.

4. The shock-absorbing support with slope adjustment function according to claim 1, characterized in that: A sealing rubber ring is sleeved on the upper part of the elastic damping body, or an annular groove is arranged on the inner side of the groove of the lower support plate, and the sealing rubber ring is placed in the annular groove.

5. The shock-absorbing support with slope adjustment function according to claim 1, characterized in that: The deformable bag cushion is composed of a plurality of bag packages arranged in a matrix, and the adjacent bag packages are integrally formed through their edges and the edges are provided with flow channels interconnected with each other.

6. The shock-absorbing support with slope adjustment function according to claim 1, characterized in that: The support body is a plate-type support body, a pot-type support body, a spherical support body or a friction pendulum support body.

7. The shock-absorbing support with slope adjustment function according to claim 1 or 6, characterized in that: The support body includes an upper support plate and a middle support plate. The bottom of the middle support plate is connected to the slope adjustment and shock absorption mechanism. The middle support plate is connected to the lower support plate through a vertical limiting mechanism. The vertical limiting mechanism is composed of matching flanges respectively arranged on the lower part of the middle support plate and the upper part of the groove of the lower support plate.

8. The shock-absorbing support with slope adjustment function according to claim 7, characterized in that: A lining plate is arranged between the upper support plate and the middle support plate, a first friction pair is arranged between the lining plate and the upper support plate, and a second friction pair is arranged between the lining plate and the middle support plate.

9. The shock-absorbing support with slope adjustment function according to claim 8, characterized in that: The first friction pair is a plane friction pair; the second friction pair is a spherical friction pair, which is placed between the spherical crown surface on the bottom surface of the lining plate and the spherical groove on the top surface of the middle support plate. The first friction pair and the second friction pair are both composed of stainless steel slide plates and wear-resistant plates, and the wear-resistant plates are composed of modified polytetrafluoroethylene plates and modified ultra-high molecular weight polyethylene plates.

10. The shock-absorbing support with slope adjustment function according to claim 9, characterized in that: The first friction pair and the second friction pair are surrounded by sealing rings on the outside, and the sealing rings are placed in the grooves of the upper support plate, the lining plate or the middle support plate.

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