Automobile suspended type vibration isolating device

Abstract

The invention discloses an automobile suspended type vibration isolating device. The automobile suspended type vibration isolating device comprises supporting plates, connecting plates, variable-rigidity conical springs and rubber elastic elements. The left supporting plate and the right supporting plate are fixedly welded, and the lower portion of the left supporting plate and the lower portion of the right supporting plate are fixed in rubber the elastic elements in a sleeved mode. The outer sides of the rubber elastic elements are fixedly provided with the left connecting plate and the right connecting plate respectively. One variable-rigidity conical spring which is stretched towards the oblique upper portion is arranged between the left supporting plate and the left connecting plate. The other variable-rigidity conical spring which is stretched towards the oblique upper portion is arranged between the right supporting plate and the right connecting plate. According to the automobile suspended type vibration isolating device, the structure that the variable-rigidity conical springs are matched with the rubber elastic elements is adopted, during static-state bearing, only the rubber elastic elements play a supporting role, during dynamic-state bearing, the variable-rigidity conical springs and the rubber elastic elements provide opposite acting force, and the characteristics of high static-state supporting rigidity and low dynamic-state rigidity are achieved.

Description

technical field [0001] The invention relates to an automobile suspension type vibration isolation device, which belongs to the technical field of automobile accessories. Background technique [0002] Suspension vibration isolation device is a common structural part in the field of automotive engineering. Its main function is to connect the upper load or dynamic exciter with the lower fixed support, and attenuate the vibration transmitted from the load or dynamic exciter to the fixed support. [0003] Suspended vibration isolation devices generally use rubber materials as elastic components, and in terms of function, they are required to have support and vibration damping functions. In order to perform the support function, the elastic element is required to have a sufficiently high static stiffness to ensure the stability of the system, and in order to exert the vibration damping function, the elastic element is required to have a sufficiently low dynamic stiffness. These tw...

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Problems solved by technology

In order to perform the support function, the elastic element is required to have a sufficiently high static stiffness to ensure the stability of the system, and in order to exert the vibration damping function, the elastic element is required to have a sufficiently low dynamic stiffness. These two requirements are contradictory, and traditional designs often use Compromise and compromise methods are difficult to achieve optimal performance

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