Novel constant-temperature laminated rubber support

Abstract

The utility model relates to a novel constant-temperature laminated rubber support, and belongs to the technical field of seismic mitigation and isolation in civil engineering. Comprising an upper connecting steel plate, an insulating layer, an upper metal connecting sheet, a rubber protection layer, a lower metal connecting sheet, a lower connecting steel plate, an upper sealing plate, conductive rubber, an internal thin steel plate and a lower sealing plate. Automatic constant temperature can be realized without a temperature controller, and the problem of rubber hardening at low temperature is solved; the constant-temperature laminated rubber support is placed at the bottoms of structures, bearing the earthquake action or other power actions, of industrial and civil buildings, bridges, equipment, nuclear power facilities and the like, and the earthquake isolation effect of the rubber support at the low temperature can be guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of earthquake isolation and vibration reduction in civil engineering, and particularly relates to a novel constant-temperature laminated rubber bearing. Background Art

[0002] As a sudden natural disaster, earthquakes often cause the collapse of building structures, resulting in serious casualties and property losses. Traditional seismic methods mainly rely on the ductility design of the structure itself, absorbing seismic energy through plastic deformation, but it is difficult to resist earthquakes beyond the design intensity, having limitations. To overcome this defect, seismic isolation technology has become an effective means. By setting up a seismic isolation layer, the transmission of seismic energy is reduced, and the seismic response of the structure is decreased. Horizontal seismic isolation devices such as rubber seismic isolation bearings are widely used and have good seismic isolation effects.

[0003] However, the performance of rubber materials is greatly affected by temperature. It is easy to crystallize and harden in a low-temperature environment, resulting in an increase in shear stiffness and a decrease in the seismic isolation effect. The existing specifications in China do not consider the influence of temperature sufficiently, only requiring the detection of low-temperature crystallization performance and ignoring the actual influence of environmental temperature on the seismic isolation structure. In winter, the low temperature in the Northeast region can reach -20°C. Earthquakes occur frequently and the temperature difference is large in the Qinghai-Tibet Plateau region. The temperature sensitivity of rubber seismic isolation bearings cannot be ignored. Therefore, developing a novel constant-temperature laminated rubber bearing with an automatic constant-temperature function to maintain the stability of the performance of rubber materials is of great significance for improving the safety and reliability of the seismic isolation structure. Summary of the Utility Model

[0004] The purpose of the utility model is to provide a novel constant-temperature laminated rubber bearing to help accurately measure the deformation of rock strata.

[0005] A novel constant-temperature laminated rubber bearing provided by the utility model adopts the following technical scheme: A novel constant-temperature laminated rubber bearing includes: an upper connecting steel plate, an insulating layer, an upper metal connecting piece, a lower metal connecting piece, a lower connecting steel plate, an upper sealing plate and a lower sealing plate; the upper connecting steel plate is connected to the upper sealing plate, and an insulating layer is arranged between the upper connecting steel plate and the upper sealing plate; the lower connecting steel plate is connected to the lower sealing plate, and an insulating layer is arranged between the lower connecting steel plate and the lower sealing plate; a laminated structure with a constant-temperature function is arranged between the upper sealing plate and the lower sealing plate; wherein the upper sealing plate is connected with an upper metal connecting piece, and the lower sealing plate is connected with a lower metal connecting piece.

[0006] Further, the laminated structure is composed of multiple layers of conductive rubber and internal thin steel plates stacked alternately.

[0007] Further, the outside of the laminated structure is wrapped by a rubber protective layer.

[0008] Further, the upper sealing plate and the upper metal connecting piece, as well as the lower sealing plate and the lower metal connecting piece, are both connected by welding.

[0009] Further, both the upper metal connecting piece and the lower metal connecting piece are connected with wires; the wires are connected with a power source.

[0010] Further, holes are formed in both the upper connecting steel plate and the lower connecting steel plate.

[0011] Further, the conductive rubber is a conductive rubber with a positive temperature coefficient of resistance.

[0012] Further, the internal thin steel plate and the conductive rubber are connected by vulcanization pressing.

[0013] In summary, the utility model includes the following beneficial technical effects:

[0014] 1. By adopting the constant temperature characteristic of the conductive rubber, the utility model can achieve automatic constant temperature without a thermostat, effectively solving the problem of rubber hardening caused by low temperature and ensuring the seismic isolation effect of the rubber bearing in cold regions. In addition, this method has high thermal efficiency, low power consumption, and a long service life, with significant economic and environmental benefits.

[0015] 2. In the utility model, the internal thin steel plate not only enhances the stiffness of the rubber bearing, but also utilizes its conductive characteristic of direct contact with the conductive rubber to avoid the fracture problem that may occur in the traditional wire connection method under large deformation conditions, and is more adaptable to the large deformation characteristics of the rubber bearing, improving the reliability and safety of the bearing.

[0016] 3. The constant temperature laminated rubber bearing of the utility model has a simple structure, is convenient for manufacturing and processing, and is conducive to large-scale production and popularization and application.

[0017] 4. The alternating stacking structure of the multi-layer conductive rubber and the internal thin steel plate in the utility model, together with the external rubber protective layer, jointly provide excellent seismic isolation performance.

[0018] 5. For the stable electrical connection, the upper metal connecting piece and the lower metal connecting piece are connected by welding and are connected with wires to the power source, ensuring the stability and durability of the electrical connection.

[0019] 6. The hole design on the upper connecting steel plate and the lower connecting steel plate in the utility model increases the adaptability of the bearing, enabling it to better adapt to different structural and environmental requirements.

[0020] 7. The positive temperature coefficient of resistance characteristic of the conductive rubber in the utility model enables it to adjust the resistance with temperature change, optimizing the constant temperature effect; the vulcanization pressing connection between the internal thin steel plate and the conductive rubber ensures the firmness and durability of the connection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is a schematic structural diagram of the utility model;

[0022] Figure 2 It is a schematic diagram of the internal structure of the laminated structure of the present utility model;

[0023] Figure 3 It is a schematic diagram of the internal structure of the laminated structure of the present utility model.

[0024] Explanation of reference numerals in the drawings: 1. Upper connecting steel plate; 2. Insulating layer; 3. Upper metal connecting piece; 4. Rubber protective layer; 5. Lower metal connecting piece; 6. Lower connecting steel plate; 7. Upper sealing plate; 8. Conductive rubber; 9. Internal thin steel plate; 10. Lower sealing plate. Specific embodiments

[0025] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0026] As Figures 1 to 3 shown, a specific embodiment of a new type of constant-temperature laminated rubber bearing includes: an upper connecting steel plate 1, an insulating layer 2, an upper metal connecting piece 3, a lower metal connecting piece 5, a lower connecting steel plate 6, an upper sealing plate 7 and a lower sealing plate 10; wherein, the upper connecting steel plate 1 is connected to the upper sealing plate 7, and an insulating layer 2 is provided between the upper connecting steel plate 1 and the upper sealing plate 7; the lower connecting steel plate 6 is connected to the lower sealing plate 10, and an insulating layer 2 is provided between the lower connecting steel plate 6 and the lower sealing plate 10; a laminated structure with a constant-temperature function is provided between the upper sealing plate 7 and the lower sealing plate 10; wherein the upper sealing plate 7 is connected with an upper metal connecting piece 3, and the lower sealing plate 10 is connected with a lower metal connecting piece 5; the laminated structure is composed of multiple layers of conductive rubber 8 and internal thin steel plates 9 stacked alternately; the outside of the laminated structure is wrapped by a rubber protective layer 4.

[0027] Specifically, the upper connecting steel plate 1 is isolated from the upper sealing plate 7 by the insulating layer 2, and the lower connecting steel plate 6 is also isolated from the lower sealing plate by the insulating layer 2 to prevent current from flowing through the upper connecting steel plate 1 and the lower connecting steel plate 6.

[0028] Specifically, the upper sealing plate 7 and the upper metal connecting piece 3 and the lower sealing plate 10 and the lower metal connecting piece 5 are all connected by welding; the upper metal connecting piece 3 and the lower metal connecting piece 5 are both connected with wires; the wires are connected with a power source.

[0029] Specifically, conductive materials such as carbon black and graphite are added to the conductive rubber 8, which has a positive temperature coefficient of resistance. When the temperature of the conductive rubber 8 rises, the resistance increases; when the temperature decreases, the resistance decreases.

[0030] Specifically, the upper metal connecting piece 3 is connected to the lower metal connecting piece 5 by a wire. When the wire is connected to a power supply, current flows through the upper metal connecting piece 3, the upper sealing plate 7, the conductive rubber 8, the internal thin steel plate 9, the lower sealing plate 10, and the lower metal connecting piece 5. The power supply voltage is the rated value. When the temperature is low, the resistance of the conductive rubber 8 is small and the current is large, so the conductive rubber 8 generates heat. As the temperature rises, the resistance of the conductive rubber 8 gradually increases and the current decreases, resulting in a reduction in the heat generated by the conductive rubber 8. Eventually, both the current and the temperature tend to be stable, thus achieving the constant temperature of the rubber bearing and ensuring the seismic isolation effect of the rubber bearing in a low-temperature environment.

[0031] In other preferred embodiments, holes are provided in both the upper connecting steel plate 1 and the lower connecting steel plate 6 to accommodate the deformation of the steel plates during compression and tension.

[0032] In other preferred embodiments, the embedding and bonding of the internal thin steel plate 9 and the conductive rubber 8 are connected by vulcanization pressing under a certain pressure, at a certain temperature, and for a certain period of time, ensuring the firmness and durability of the connection.

[0033] The above are all the preferred embodiments of the present invention, and the protection scope of the present invention is not limited thereby. Therefore, all equivalent changes made according to the structure, shape, and principle of the present invention shall be covered within the protection scope of the present invention.

Claims

1. A novel constant-temperature laminated rubber bearing, characterized in that, Including: Upper connecting steel plate (1), insulating layer (2), upper metal connecting piece (3), lower metal connecting piece (5), lower connecting steel plate (6), upper sealing plate (7) and lower sealing plate (10); The upper connecting steel plate (1) is connected to the upper sealing plate (7), and an insulating layer (2) is provided between the upper connecting steel plate (1) and the upper sealing plate (7); The lower connecting steel plate (6) is connected to the lower sealing plate (10), and an insulating layer (2) is provided between the lower connecting steel plate (6) and the lower sealing plate (10); A laminated structure with a constant temperature function is provided between the upper sealing plate (7) and the lower sealing plate (10); Among them, the upper sealing plate (7) is connected with an upper metal connecting piece (3), and the lower sealing plate (10) is connected with a lower metal connecting piece (5).

2. The novel constant-temperature laminated rubber bearing according to claim 1, wherein The laminated structure is composed of multiple layers of conductive rubber (8) and internal thin steel plates (9) stacked alternately.

3. A novel constant-temperature laminated rubber bearing according to claim 2, characterized in that, The outside of the laminated structure is wrapped by a rubber protective layer (4).

4. A novel constant-temperature laminated rubber bearing according to claim 1, characterized in that, The upper sealing plate (7) and the upper metal connecting piece (3), as well as the lower sealing plate (10) and the lower metal connecting piece (5), are all connected by welding.

5. A novel constant-temperature laminated rubber bearing according to claim 4, characterized in that, Both the upper metal connecting piece (3) and the lower metal connecting piece (5) are connected with wires; The wires are connected to a power supply.

6. The novel constant-temperature laminated rubber bearing according to claim 1, wherein Holes are provided on both the upper connecting steel plate (1) and the lower connecting steel plate (6).

7. A novel constant-temperature laminated rubber bearing according to claim 2, characterized in that, The conductive rubber (8) is a conductive rubber (8) with a positive temperature coefficient of resistance.

8. The novel constant-temperature laminated rubber bearing according to claim 2, characterized in that, The internal thin steel plate (9) and the conductive rubber (8) are connected by vulcanization pressing.

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