Three-dimensional rolling ball shock insulation support

Abstract

The invention belongs to the technical field of shock insulation, and particularly relates to a three-dimensional rolling ball shock insulation support. An eddy current horizontal shock isolator is composed of an upper support plate, a rolling ball, a lower support plate, a base, a first permanent magnet, a second permanent magnet, a closed conductor and a third permanent magnet; a vertical shock isolator is composed of an upper connecting plate, a belleville spring, a lower connecting plate and steel springs; the upper support plate and the lower support plate are oppositely arranged up and down; the corresponding surfaces of the upper support plate and the lower support plate are respectively provided with variable-frequency concave curved surfaces; the bottom of the upper support plate is provided with upper support plate variable-frequency concave curved surfaces; the top of the lower support plate is provided with lower support plate variable-frequency concave curved surfaces; every two of the upper support plate variable-frequency concave curved surfaces and the lower support plate variable-frequency concave curved surfaces correspond to each other in the vertical direction to form a group; and a rolling ball is arranged between each group of variable-frequency concave curved surfaces. The three-dimensional rolling ball shock insulation support provided by the invention can isolate horizontal and vertical earthquake forces at the same time, and meanwhile, has the advantages of being high in energy dissipation capacity, good in self-resetting capacity, good in overturning resistance, simple in structure and the like.

Description

technical field [0001] The invention belongs to the technical field of shock isolation, and in particular relates to a three-dimensional rolling ball shock isolation bearing. Background technique [0002] The seismic isolation principle of the ball bearing is to use the concave surface to extend the natural period of the structure, greatly reducing the dynamic amplification effect caused by the earthquake, and to consume the seismic energy through the friction generated by the rolling ball and the upper and lower concave surfaces during the rolling process. At present, scholars at home and abroad have developed a variety of rolling ball isolation bearings. In 1870, Touaillon invented a rolling ball placed in a support plate with a spherical concave surface above and below; in 1995, Kemeny et al. invented a Ball-In-Cone isolation support; in 2010, Tsai CS et al. proposed a belt Rolling ball shock-isolating bearing of damping material; in 2012, Sui Yingjie et al. proposed a b...

AI Technical Summary

Problems solved by technology

However, the above-mentioned rolling ball isolation bearings may have disadvantages such as weak energy dissipation capacity, poor self-resetting ability, and no consideration of overturning resistance. At the same time, the above-mentioned rolling ball isolation bearings cannot isolate vertical seismic forces.

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