Vibration isolator, adjusting method of vibration isolator and spring replacing method of vibration isolator

Abstract

The invention provides a vibration isolator and an adjusting method and a spring replacing method thereof, the vibration isolator comprises an upper cover plate, a lower seat plate and at least two buffer units, and each buffer unit comprises a pressure spring, a spring cover plate, an extrusion part, an adjusting base plate, a traction cable and a locking mechanism; one end of the pressure spring is connected to the lower seat plate, and the other end of the pressure spring abuts against the upper cover plate through the spring cover plate and the adjusting base plate in sequence; a first through hole is formed in the upper cover plate, a second through hole is formed in the lower seat plate, a third through hole is formed in the spring cover plate, the extrusion component is arranged in the first through hole and can abut against the spring cover plate, one end of the traction cable is fixedly connected with the extrusion component, and the other end of the traction cable sequentially penetrates through the third through hole, the compression spring and the second through hole. And the locking mechanism is arranged on the lower seat plate and can fix the traction cable on the lower seat plate. The operation difficulty of height adjustment and leveling can be reduced, and meanwhile, one spring can be independently replaced.

Description

technical field [0001] The invention relates to the technical field of vibration isolation of buildings (equipment), in particular to a vibration isolator and an adjustment method thereof and a spring replacement method thereof. Background technique [0002] With the development of urban rail transit and people's higher and higher requirements for noise and vibration control in the living environment, newly built subway superstructures, concert halls and theaters with high noise and vibration control requirements are gradually adopting vibration isolators The basic principle of vertical vibration isolation is to set up several vibration isolators between the building and the foundation to suspend the building, and filter the high-frequency vibration of the surrounding environment through the vibration isolators. Shanghai Concert Hall, National Grand Theater, Chengdu Vibration isolators are used in the T2 terminal building of Tianfu Airport. [0003] At present, when install...

AI Technical Summary

Problems solved by technology

[0003] At present, when installing building vibration isolators, the form of adding or subtracting steel plates between the vibration isolator and the superstructure is often used to adjust the height. The steel plates are usually heavy, and it is difficult to take out or place them, and the overall compression of the vibration isolator is required, which has a great impact on the equipment load. And the installation space requirements are high. If leveling is required, the leveling steel plate needs to be customized according to the actual size

The existing height adjustment and leveling method makes the installation of the vibration isolator difficult and the construction time is long

In addition, the structure of the existing vibration isolator cannot replace a certain spring alone, which is not conducive to later maintenance

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