Tensile vibration isolation device

Abstract

The invention belongs to the field of vibration control, and in particular, relates to a tensile vibration isolation device. The tensile vibration isolation device comprises a substrate and an elastic support element; and the elastic support element includes a metal compression spring. The tensile vibration isolation device further comprises a reverse pressing elastic element, a reverse pressing plate and a connecting piece; a middle force bearing plate and an outer connecting plate are arranged in the connecting piece; a connecting rod or a shell is arranged on the substrate; the bottom end of the connecting rod or the shell is fixedly connected with the substrate; the reverse pressing plate and a limiting piece thereof are arranged at the top of the connecting rod, or the reverse pressing plate is fixed at the top of the shell; the reverse pressing elastic element is positioned between the reverse pressing plate and the middle force bearing plate; and the support elastic element is positioned between the middle force bearing plate and the substrate. The tensile vibration isolation device is simple in structure, can bear both downward pressure and upward tensile force, is high in vibration isolation efficiency, is stable and reliable in performance, can be widely applied to elastic vibration isolation foundation engineering in various ship power, industrial rotating equipment or rail transit vehicle operations, and is broad in market prospect.

Description

technical field [0001] The invention belongs to the field of vibration control, and in particular relates to a vibration isolation device, in particular to a vibration isolation device that can be widely used for vibration isolation of rail floating slab track beds, equipment or equipment foundations, and the like. Background technique [0002] In recent years, with the continuous advancement of my country's industrial upgrading, various large-scale impact or rotary equipment are widely used in industrial production and commercial fields, such as various forging equipment, stamping equipment, nuclear power turbine generator sets, etc. At the same time, these The control of vibration and noise generated during the operation of equipment has also attracted people's attention. At present, in order to control such vibration and noise problems, the principle of vibration isolation is mostly used, and the vibration isolation system is composed of mass blocks and elastic elements. T...

AI Technical Summary

Problems solved by technology

Taking large-scale forging equipment as an example, when working, the forging working part will lift up immediately after impacting the workpiece. At this time, the impact on the workbench will be transmitted to the steel spring vibration isolator under the equipment. It does not act continuously on the workbench, so the steel spring vibration isolator will rebound immediately after being compressed and deformed, and because the existing steel spring vibration isolators generally cannot bear the upward pulling force, the steel spring vibration isolator may be caused by insufficient pressure. If the displacement is serious, the spring parts in the steel spring vibration isolator will jump when they rebound to exceed their free height. When the impact is very strong, the jumping range of the spring parts may be too large. In the case of falling out and dumping, this situation will cause the steel spring vibration isolator to lose part or even all of its elastic support capacity, affecting the normal use and operation safety of the equipment

[0004] Similarly, the short prefabricated slab floating track bed also has such problems. When the rail vehicle enters from one end, due to the short prefabricated slab's light weight, a seesaw effect will occur, that is, the other end of the short prefabricated slab has an upward warp. If the trend cannot be effectively controlled, the steel spring vibration isolator on the tilted side of the short prefabricated slab will have insufficient pressure, which will easily cause the short prefabricated slab to shift or the elastic elements in the steel spring vibration isolator to jump out or overturn, etc. problems, bringing safety hazards to daily operations

[0005] In addition, the steel spring vibration isolation devices of ship power equipment also have such problems. When encountering strong sea waves, the ship will shake violently, and the ship power equipment will inevitably shake together. In severe cases, some steel spring vibration isolation devices The borne load may be completely released, and the spring parts may jump out or fall easily, causing the vibration isolation system to fail and even endangering the safety of the ship's power equipment

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