Electric servo cylinder earthquake simulation vibrating table in small engineering structure

Abstract

The invention discloses an electric servo cylinder earthquake simulation vibrating table in a small engineering structure, which comprises a vibrating table base, a servo motor, an electric servo actuator, a vibrating table top and a prestress gapless connection mechanism, wherein the vibrating table base is connected with the vibrating table top by a linear guide rail pair; a tested piece is placed on the vibrating table top; the servo motor is mounted below the vibrating table base; an output shaft of the servo motor is connected with an input shaft of the electric servo actuator used for converting rotation into linear motion; an output shaft of the electric servo actuator is connected with a piston rod; a motion direction of the piston rod is consistent with a motion direction of the linear guide rail pair; a table top driving connection seat and the prestress gapless connection mechanism are mounted at the front end of the piston rod; and the upper end of the table top driving connection seat is fixedly connected with the vibrating table top. The electric servo cylinder earthquake simulation vibrating table in the small engineering structure can simplify a structure, lower the cost, and shorten a production period and a single test period.

Description

technical field [0001] The invention relates to an earthquake simulation device, in particular to an earthquake simulation shaking table. Background technique [0002] Domestic vibrating tables are divided into two categories: [0003] The first type is the electric vibration table with electromagnetic excitation. This type of vibration table is mainly used for the anti-vibration ability of the test piece. The maximum frequency of this type of vibration table can reach 1000Hz, and the maximum excitation force can reach 50 tons. But the biggest disadvantage is that the minimum frequency should not be too low, generally not less than 1Hz, and the maximum amplitude should not be too large, generally not more than 50mm, which are completely different from the seismic simulation test shaking table, and are generally not used for the earthquake resistance of civil structures. Research. [0004] The second category is the electro-hydraulic servo vibration table. Domestic researc...

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Problems solved by technology

[0005] In order to overcome the deficiencies of the existing earthquake simulation shaking table with complex structure, high cost, and too long production and individual test periods, the present invention provides a small-scale engineering structure electric servo cylinder earthquake that simplifies the structure, reduces costs, and shortens the production and individual test periods. Analog shaker

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