Spherical hinge type end face constraint variable damping rigidity vibration isolator

Abstract

The invention relates to a spherical hinge type end face constraint variable damping rigidity vibration isolator, and belongs to the technical field of vibration reduction devices. The two ends of an arch-shaped support of the vibration isolator support a vertical center shaft through vibration isolation assemblies correspondingly; the two ends of the center shaft are provided with necking sections and threaded sections which are sequentially reduced in diameter correspondingly; the middle section between the necking sections at the two ends is sleeved with a connector assembly through a sliding block; each vibration isolation assembly comprises a step elastic barrel ring with the inner end embedded in a supporting hole in the bent end of the arch-shaped support; the outer end of each step elastic barrel ring is embedded in an embedded groove in the inner end face of a limiting base; and each step elastic barrel ring is provided with step inner holes corresponding to the inner end and the outer end correspondingly, wherein the small diameter of the step inner holes is larger than the diameter of the necking sections of the center shaft and smaller than the diameter of the middle section of the center shaft.

Description

technical field [0001] The invention relates to a vibration isolator, in particular to a spherical joint type end face constrained variable damping stiffness vibration isolator, which belongs to the technical field of vibration reduction devices. Background technique [0002] It can be seen from the search that the Chinese patent document with the application number 201721464238.5 discloses "A Small Spherical Hinge Tooth Shock Absorber". The shock absorber includes an outer ring gear assembly installed at both ends of the arch bracket, an inner ring gear assembly installed at both ends of the vertical central axis, and a connecting cylinder assembly installed in the middle of the central shaft; the outer ring gear assembly includes a The outer ring and the inner gear fixed in the outer ring, the inner ring gear assembly includes the inner ring fixedly connected with the central shaft and the outer gear fixed outside the inner ring, the inner gear and the outer gear mesh with...

AI Technical Summary

Problems solved by technology

[0003] However, with the continuous development and changes of vibration reduction and vibration isolation technology, the technical solutions of the above patents show the following main points to be improved in practice: 1) It fails to meet the required rotation decoupling requirements (decoupling means that two kinds of motion separated); 2) The limit angle is not easy to control

In addition, there are also disadvantages such as the small load capacity of the elastic teeth, the risk of tooth jumping, and the inability to obtain damping and limited front and rear displacement when there is a gap between the teeth

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