Hydraulic mount

Abstract

The invention provides a hydraulic mount, which is provided with an outer shell, a main vibration attenuation body, a separation body and a bottom sealing body, wherein the separation body comprises a low-frequency runner and a high-frequency diaphragm, and the low-frequency runner and the high-frequency diaphragm are vulcanized into a whole; the low-frequency runner is provided with a turbulent flow flange; the high-frequency diaphragm is provided with a notch. According to the low-frequency runner and the high-frequency diaphragm which are integrally vulcanized, the stability of suspension work is improved, the turbulent flow flange replaces a turbulent flow plate so as to reduce abnormal sound or interference caused by the reason that the bolts of the turbulent flow plate loose or fall under vibration, the high-pressure diaphragm is provided with a notch to lower dynamic stiffness under high frequency, an aerial drainage function is formed when the hydraulic mount is under large pressure, and the high-frequency diaphragm is prevented from integrally breaking.

Description

technical field [0001] The invention relates to the technical field of automobile engine mounts, in particular to a hydraulic mount. Background technique [0002] For the engine side mount, in order to improve its vibration isolation performance at high frequencies, it is generally designed as a hydraulic mount. The main performance parameters of the hydraulic mount include the dynamic-to-static ratio and the dynamic stiffness at high frequencies. [0003] Static stiffness refers to the amount of deformation produced by an object under a certain external force; dynamic stiffness is the definition relative to static stiffness, and dynamic stiffness is the amount of deformation produced by an object under the action of an external force at a certain frequency; the dynamic-static ratio is the dynamic stiffness and static stiffness ratio. [0004] Such as figure 1 , figure 2 , image 3 As shown in FIG. 1 , it is a schematic diagram of the structure of the hydraulic mount in...

AI Technical Summary

Problems solved by technology

[0008] (1) The internal space layout is limited, and the design of the rubber main spring needs to consider avoiding the spoiler, and sometimes sacrifices in durability and other performance;

[0009] (2) There are risks in reliability, and problems such as falling off and abnormal noise due to movement interference are prone to occur;

[0010] (3) The cost is high, including material purchase cost, mold cost and assembly cost of the production line

However, although this solution reduces the high-frequency dynamic stiffness to a certain extent, it does not achieve the effect of installing a spoiler

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