A car powertrain mount

Abstract

The invention discloses an automobile power assembly hanging device. A rubber main spring body is arranged in a receiving ring, and a riveting plate is arranged at the bottom of the rubber main spring body. An installation base where the riveting plate is installed is arranged at the bottom of an outer shell, the rubber main spring body is fixedly riveted to the installation base through the riveting plate, and a mass block is arranged between the rubber main spring body and the riveting plate and connected with the riveting plate in a sulfuration mode through a first rubber layer. The automobile power assembly hanging device has the advantages that when an automobile body is vibrated by the road surface in a large-amplitude mode, the first attenuation effect is achieved on the large-amplitude vibration when the large-amplitude vibration is transmitted to the rubber main spring body, the second attenuation effect is achieved on the large-amplitude vibration when the large-amplitude vibration is transmitted to the first rubber layer through the mass block, vibration is greatly reduced through the two times of attenuation, and the good vibration reduction effect is achieved; when an engine arouses an automobile body modality at a certain rotating speed output frequency, a power vibration absorber is formed by the first rubber layer and the mass block, the standing wave effect can be avoided, an extra power vibration absorption device does not need to be added, the in-automobile space is saved, and the manufacturing cost is reduced.

Description

technical field [0001] The invention relates to an automobile component, in particular to an automobile power train mount. Background technique [0002] When the car is running, the engine itself is an internal vibration source, and the car is also disturbed by various external vibrations, which will cause wear of parts and affect the comfort of passengers. Installing vibration isolation mounts can greatly Attenuates vibrations from the engine or the road. Existing vibration isolation mounts include a support arm installed on the engine, an outer casing and an annular rubber pad installed on the vehicle body support frame, the support arm includes a connecting arm and a receiving ring, and the receiving ring is connected to the outer casing through a layer of annular rubber pad. connect. It can be seen that when the car is running, the vibration generated by the engine and the vibration generated by the bumpy road surface of the vehicle body will be attenuated by the ring ...

AI Technical Summary

Problems solved by technology

[0003] The existing vibration isolation mount has the following problems: because the car is affected by two vibration sources, the internal engine excitation (high frequency small vibration) and the external road surface excitation (low frequency large amplitude), through the existing single-layer annular rubber pad It is impossible to achieve a good vibration reduction effect, and it is necessary to add a dynamic shock absorber to the vibration isolation mount, which not only takes up more space in the car, but also increases the manufacturing cost

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