Three-way position limiting steel spring vibration isolator

Abstract

The invention relates to a three-way position limiting steel spring vibration isolator. The three-way position limiting steel spring vibration isolator comprises an upper shell (1), a steel spring set(2), a lower shell (3), an external position limiting device and an internal position limiting device, wherein the external position limiting device comprises an external position limiting rod (9) and a first sliding wedge block (8), the bottom of the external position limiting rod (9) is fixed to the lower shell (3), and the top of the external position limiting rod (9) is matched with the firstsliding wedge block (8) to perform up and down movement; and the internal position limiting device is installed inside the lower shell (3) and comprises a position limiting cylinder (4), a second sliding wedge block (5) and a threaded rod (6), and the position limiting cylinder (4) is matched with the second sliding wedge block (5) to perform the up and down movement. Compared with the prior art,by means of the three-way position limiting steel spring vibration isolator, a vibration isolator axial-direction position limiting height adjustable function can be realized, the same upper and lower position limiting clearance can be guaranteed aiming at different load conditions, furthermore, radial stiffness is provided through circumferential coordination between the upper shell and the lower shell, and the vibration isolator is made to have a three-way position limiting function.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a steel spring vibration isolator with a three-way limiting function, which is installed at the joint between a generator set and a foundation for vibration and noise reduction. Background technique [0002] As a widely used vibration isolator, the steel spring vibration isolator is usually installed between the generator set and the installation foundation to reduce the transmission of vibration energy and noise between the generator set and the installation foundation. Moreover, when a sudden earthquake or a vibration isolator is applied to a ship, the vibration isolator with a limit function can effectively prevent the vibration isolator from being damaged under extreme conditions such as external impact. [0003] At present, the existing steel spring vibration isolators in the industry seldom have a limit function. When the steel spring vibration isolator is damaged due to extr...

AI Technical Summary

Problems solved by technology

Although the steel spring vibration isolator disclosed in this patent technology has a limit function, the limit gap cannot be adjusted. When multiple steel spring vibration isolators are applied to a generator set at the same time, it is difficult to ensure that all isolation The same initial deformation of the vibrator will cause the limit gap of the isolator to change, which will affect the limit performance and service life of the isolator

Images