Elastic single-face flat plate rolling shock insulation support

Abstract

The invention discloses an elastic single-face flat plate rolling shock insulation support which comprises an elastic adjusting assembly, balls, a fixing plate, a rolling panel, an upper connecting plate and a lower connecting plate, the elastic adjusting assembly is effectively connected with the fixing plate and the balls into a whole through bolt connection or welding, and the balls are arranged between the rolling panel and the elastic adjusting assembly. The rolling face plate is placed on the lower connecting plate, the balls and the rolling face plate form a horizontal rolling friction pair, a gap is reserved between the fixing plate and the rolling face plate, the building structure period is prolonged through free rolling between the balls and the rolling face plate, and therefore earthquake energy isolation is achieved.

Description

Technical Field

[0001] The present invention relates to the field of seismic isolation bearings, and in particular to an elastic single-sided flat plate rolling seismic isolation bearing. Background Art

[0002] Seismic isolation technology for building structures extends the natural vibration period of the structure and reduces the structure's seismic acceleration response by installing an isolation layer. At the same time, the isolation layer has a high energy dissipation capacity to dissipate the energy input into the structure by the earthquake. When an earthquake strikes, the upper structure of the seismic isolation building is close to translational motion. Seismic isolation technology greatly enhances the building structure's ability to withstand earthquake risks, protecting people's lives and property. It can also protect important facilities in the building (such as machine rooms, power facilities, medical equipment, and precision instruments) from damage. The main isolation devices used domestically and internationally are rubber isolation bearings and sliding isolation bearings. The former typically consists of multiple layers of rubber sandwiched between thin steel plates, with a lead core optionally added in the center. This structure can extend the building's natural vibration period, distance it from the characteristic period of seismic waves, reduce earthquake effects, and provide automatic reset. The latter, on the other hand, cannot reset itself and must be used in conjunction with an isolation bearing or reset device with reset function.

[0003] However, its disadvantages are also very obvious. In the existing technology, the horizontal stiffness of the rubber isolation bearing is greater than that of the sliding isolation bearing. From the perspective of mechanism, LRB and LNR reduce the horizontal stiffness of the isolator through the elastic deformation of the material; the sliding / plate bearing reduces the force of the upper structure by sliding the slider on the sliding surface. The vertical stiffness of the existing sliding or rolling bearings on the market is more than ten times that of the rubber isolation bearing. Therefore, when used together during vertical earthquakes, the pressure of the sliding or rolling bearing and its connected components will increase rapidly, causing the rolling bearing and its connected components to be damaged, resulting in structural safety. For this reason, a rolling bearing is proposed that extends the period of the isolation structure system by rolling steel balls on the rolling surface, reduces the force of the upper structure, and is an elastic single-sided flat plate rolling isolation bearing that can adjust the vertical stiffness. Summary of the Invention

[0004] The purpose of the present invention is to provide an elastic single-sided flat plate rolling isolation bearing to solve the problems in the prior art.

[0005] To achieve this purpose, the present invention adopts the following technical solution: an elastic single-sided flat plate rolling seismic isolation bearing, including an elastic adjustment component, a ball, a fixed plate, a rolling panel and a lower connecting plate. The elastic adjustment component is effectively connected to the fixed plate and the ball by bolt connection or welding to form a whole. The ball is placed between the rolling panel and the elastic adjustment component, and the rolling panel is placed on the lower connecting plate. The ball and the rolling panel form a horizontal rolling friction pair, and a gap is left between the fixed plate and the rolling panel.

[0006] Preferably, the elastic adjustment component is composed of an upper connecting plate, a middle sealing plate, a skeleton plate, and rubber. There are several spaced-apart plate-shaped rubbers and skeleton plates between the upper connecting plate and the middle sealing plate. An arc-shaped groove is provided on the lower side of the middle sealing plate, and the ball bearing is placed in the arc-shaped groove and reliably connected to the middle sealing plate by connecting bolts or welding. The upper connecting plate, skeleton plate, middle sealing plate, rubber, and fixing plate can be round or square, etc.

[0007] Preferably, the bottom of the middle sealing plate facing the rolling panel and the upper part of the fixed plate facing the elastic adjustment component both have arc-shaped grooves that match the shape and size of the balls, and the balls are placed in the grooves.

[0008] Preferably, the middle sealing plate and the fixing plate are connected by bolts or welding.

[0009] Preferably, the lower part of the middle sealing plate has several threaded holes, the lower part of the fixing plate has several countersunk screw holes corresponding to the positions of the threaded holes one by one, and the fixing plate and the middle sealing plate are connected by connecting bolts screwed into the threaded holes and the countersunk screw holes.

[0010] Preferably, the size of the rolling panel is larger than the size of the middle sealing plate to ensure that the ball can roll freely. The size of the lower connecting plate is slightly larger than the size of the rolling panel and is reliably connected by bolts or welding. The lower connecting plate and the rolling panel can be square, round or other shapes. The rolling panel is made of a low friction coefficient material, such as a stainless steel plate.

[0011] Compared with the prior art, the present invention has the following beneficial effects: The elastic single-sided flat plate rolling isolation bearing is constructed by installing the lower connecting plate and the upper connecting plate to corresponding positions. When displacement occurs between the upper connecting plate and the lower connecting plate, the balls are rotated inside the arc-shaped groove, and a gap is left between the fixed plate and the rolling panel to ensure that there is no mechanical obstruction when the balls roll. The elastic adjustment component can provide horizontal initial stiffness and vertical deformation adjustment. The balls and the rolling panel can roll freely to extend the building structure period, thereby isolating seismic energy. Compared with traditional isolation rubber bearings LRB and LNR, the horizontal stiffness is smaller, The period of the seismic isolation structure system is extended longer, which makes the seismic isolation effect better. Compared with the commonly used plane sliding / plate bearings at this stage, its friction coefficient is less than 0.005, which is about one tenth of the friction coefficient of 0.04 of the plane sliding bearing. This has a better seismic isolation effect. In the prior art, LRB and LNR reduce the horizontal stiffness of the isolator through the elastic deformation of the material, and the sliding / plate bearing reduces the force of the upper structure by sliding the slider on the sliding surface. The rolling bearing of the present invention reduces the force of the upper structure by rolling the steel ball on the rolling surface, thereby providing the seismic isolation effect of the seismic isolation bearing and stability in use.

[0012] Whether it is a flat sliding support or the rolling support of the present application, due to the inability to self-reset, it must be used with a seismic isolation support or a reset device with a reset function, but the vertical stiffness of the existing rolling support on the market is more than ten times the vertical stiffness of LRB and LNR, which will cause the pressure of the rolling support and the connected components to increase rapidly under vertical seismic action, resulting in the destruction of the rolling support and the connected components, and the safety of the structure. Its practical application value is limited. The hybrid support of the present application has low vertical stiffness and can be directly used with LRB and LNR in actual engineering. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and those skilled in the art can also obtain other drawings according to these drawings without creative labor.

[0014] The structures, proportions, sizes, etc. shown in the drawings of the present specification are only used to cooperate with the content disclosed in the specification, to enable those skilled in the art to understand and read, and are not used to limit the limiting conditions under which the present application can be implemented, so they do not have technical significance. Any modification of structure, change of proportion relationship or adjustment of size, without affecting the effects and purposes that the present application can produce, should still fall within the scope of the technical content disclosed by the present application.

[0015] Figure 1 is a front view schematic diagram of an elastic single-sided flat plate rolling seismic isolation support; Figure 2 is a top view schematic diagram of the lower connecting plate of an elastic single-sided flat plate rolling seismic isolation support; Figure 3 is a top view schematic diagram of the upper connecting plate of an elastic single-sided flat plate rolling seismic isolation support; Figure 4 is a top view schematic diagram of the middle sealing plate of an elastic single-sided flat plate rolling seismic isolation support.

[0016] Illustration: 1, ball; 2, fixed plate; 3, rolling surface plate; 4, lower connecting plate; 5, upper connecting plate; 6, middle sealing plate; 7, skeleton plate; 8, rubber; 9, connecting bolt. DETAILED DESCRIPTION

[0017] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0018] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0019] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0020] An embodiment of the present invention provides an elastic single-sided flat rolling isolation bearing, comprising an elastic adjustment component, a ball 1, a fixed plate 2, a rolling panel 3 and a lower connecting plate 4. The elastic adjustment component is effectively connected to the fixed plate 2 and the ball 1 by bolt connection or welding to form a whole. The ball 1 is placed between the rolling panel 3 and the elastic adjustment component. The rolling panel 3 is placed on the lower connecting plate 4. The ball 1 and the rolling panel 3 form a horizontal rolling friction pair. A gap is left between the fixed plate 2 and the rolling panel 3 to ensure that there is no mechanical obstruction when the ball 1 rolls. The elastic adjustment component is composed of an upper connecting plate 5, a middle sealing plate 6, a skeleton plate 7, and a rubber 8. There are several plate-shaped rubbers 8 and skeleton plates 7 arranged at intervals between the upper connecting plate 5 and the middle sealing plate 6. An arc-shaped groove is provided on the lower side of the middle sealing plate 6 and the ball 1 is placed in the arc-shaped groove and reliably connected to the middle sealing plate 6 by connecting bolts 9 or welding. The upper connecting plate 5, the skeleton plate 7, the middle sealing plate 6, the rubber 8, and the fixed plate 2 can be round or square, etc. The upper connecting plate 5, the skeleton plate 7, the middle sealing plate 6, the rubber 8, and the fixed plate 2 can be round or square, etc. The elastic adjustment component can provide horizontal initial stiffness and vertical deformation adjustment. The bottom of the middle sealing plate 6 toward the rolling panel 3 and the upper part of the fixed plate 2 toward the elastic adjustment component both have an arc-shaped groove matching the shape and size of the ball 1. The ball 1 is placed in the groove and can roll freely between the ball 1 and the rolling panel 3 to extend the building structure period, thereby isolating seismic energy. It should also be noted that the middle sealing plate 6 and the fixed plate 2 are connected by bolts or welding. The lower part of the middle sealing plate 6 has several threaded holes, and the lower part of the fixed plate 2 has several countersunk screw holes corresponding to the positions of the threaded holes one by one. The fixed plate 2 and the middle sealing plate 6 are connected by connecting bolts 9 that are screwed into the threaded holes and countersunk screw holes, which can reduce the thickness of the fixed plate 2 to a greater extent and is also convenient for replacement.

[0021] The elastic single-sided flat plate rolling isolation bearing is first installed in the corresponding positions after the lower connecting plate 4 and the upper connecting plate 5 are displaced between the upper connecting plate 5 and the lower connecting plate 4. The ball 1 is rotated inside the arc groove, and a gap is left between the fixed plate 2 and the rolling panel 3 to ensure that there is no mechanical obstruction when the ball 1 rolls. The elastic adjustment component can provide horizontal initial stiffness and vertical deformation adjustment. The ball 1 is placed in the groove and can roll freely between the ball 1 and the rolling panel 3 to extend the building structure period, thereby isolating seismic energy. The fixed plate 2 and the middle sealing plate 6 are connected by screwing the connecting bolts 9 into the threaded holes and countersunk screw holes, which can greatly reduce the thickness of the fixed plate 2 and is also convenient for replacement.

[0022] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. An elastic single-sided flat rolling isolation bearing, characterized by: The invention comprises an elastic adjustment component, a ball (1), a fixed plate (2), a rolling panel (3) and a lower connecting plate (4); the elastic adjustment component is effectively connected to the fixed plate (2) and the ball (1) by bolt connection or welding to form a whole; the ball (1) is placed between the rolling panel (3) and the elastic adjustment component; the rolling panel (3) is placed on the lower connecting plate (4); the ball (1) and the rolling panel (3) form a horizontal rolling friction pair; and a gap is left between the fixed plate (2) and the rolling panel (3).

2. The elastic single-sided flat rolling isolation bearing according to claim 1, characterized in that: The elastic adjustment component is composed of an upper connecting plate (5), a middle sealing plate (6), a skeleton plate (7), and a polymer elastic material, such as rubber (8), and a plurality of spaced-apart plate-shaped rubber (8) and skeleton plate (7) plates are provided between the upper connecting plate (5) and the middle sealing plate (6). An arc groove is provided on the lower side of the middle sealing plate (6) and the ball (1) is placed in the arc groove and reliably connected to the middle sealing plate (6) by connecting bolts (9) or welding. The upper connecting plate (5), the middle sealing plate (6) and the skeleton plate (7) can be square, circular or other shapes.

3. The elastic single-sided flat plate rolling isolation bearing according to claim 2, characterized in that: The bottom of the middle sealing plate (6) facing the rolling panel (3) and the upper part of the fixed plate (2) facing the elastic adjustment component both have arc-shaped grooves matching the shape and size of the ball (1), and the ball (1) is placed in the grooves.

4. The elastic single-sided flat rolling isolation bearing according to claim 2, characterized in that: The middle sealing plate (6) and the fixing plate (2) are connected by bolts or welding.

5. The elastic single-sided flat rolling isolation bearing according to claim 2, characterized in that: The lower portion of the middle sealing plate (6) has a plurality of threaded holes, and the lower portion of the fixing plate (2) has a plurality of countersunk screw holes corresponding to the positions of the threaded holes. The fixing plate (2) and the middle sealing plate (6) are connected by connecting bolts (9) screwed into the threaded holes and the countersunk screw holes.

6. The elastic single-sided flat plate rolling isolation bearing according to claim 1, characterized in that: The rolling panel (3) is larger than the middle sealing plate (6) to ensure that the ball (1) can roll freely. The lower connecting plate (4) is slightly larger than the rolling panel (3) and is reliably connected by bolts or welding. The lower connecting plate (5) and the rolling panel (3) can be square, round or other shapes. The rolling panel (3) is made of a low friction coefficient material, such as a stainless steel plate.

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