Self-adjusting automobile hydraulic mount

Abstract

The invention discloses a self-adjusting automobile hydraulic mount. The self-adjusting automobile hydraulic mount comprises a shell, a rubber main spring, a connecting rod which penetrates through the rubber main spring, and a rubber bottom membrane arranged at the bottom of the inner side of the shell, wherein the shell comprises an upper shell and a lower shell connected through a bolt; an airtight chamber filled with an ethylene glycol solution is formed between the rubber main spring and the rubber bottom membrane; a partition which divides the chamber into an upper chamber body and a lower chamber body is arranged in the chamber; an open groove is formed in the middle part of the partition; the open groove communicates with the lower chamber body through an inertia channel; a movable plate connected with the open groove in a sliding and sleeving manner is arranged at the open groove; the movable plate is connected with the bottom of the open groove through springs; a circumferential damping channel is formed between the edge of the movable plate and the side wall of the open groove; and a radial damping channel which communicates with the circumferential damping channel is formed between the bottom of the movable plate and the bottom of the open groove. The hydraulic mount device of the structure has the advantages of being capable of expanding the range of vibration frequency and improving the vibration isolation effect.

Description

technical field [0001] The invention relates to a vibration isolation device, in particular to a self-adjusting vehicle hydraulic mount. Background technique [0002] At present, people have higher and higher requirements for the ride comfort and comfort performance of vehicles, and the engine is one of the main vibration sources of the vehicle, which has a great impact on the vibration of the vehicle body and the noise inside the vehicle. The transmission route is through the powertrain via The suspension device is then transmitted to the frame. As the main component of the engine vibration isolation system, the engine mount's performance directly affects the comfort of the occupants and the working life of the powertrain components. Its performance is mainly reflected in the transmission rate of powertrain vibration to body force. The lower the transmissibility, the better the vibration isolation effect of the mount. [0003] The stiffness and damping of the existing hyd...

AI Technical Summary

Problems solved by technology

[0003] The stiffness and damping of the existing hydraulic mounts are fixed and cannot be changed. They can only achieve a good vibration isolation effect in a certain frequency range. However, the working conditions of the engine are complicated, and each working condition covers a wide frequency range. The existing hydraulic mounts The installation cannot take into account the entire frequency range, so the vibration isolation effect of the suspension is poor under certain working conditions. For example, at low frequencies, large stiffness and large damping are required, and at high frequencies, small stiffness and small damping are required.

does not meet its design requirements well

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