Front mounting assembly used for power assembly

Abstract

The invention provides a front mounting assembly used for a power assembly, and belongs to the field of vehicles. The front mounting assembly comprises a main body bracket, an inner tube assembly and a riveting pressure bracket. The hollow inside portion of the body bracket is provided with an accommodation space; the inner tube assembly comprises an inner tube and a rubber main spring, the rubber main spring and the inner tube are integrally formed by vulcanization, and the inner tube assembly is placed inside the accommodation space and can move free relative to the accommodation space; the riveting pressure bracket and the main body bracket jointly limit the position of the inner tube assembly in the accommodation space, and through the cooperation of the inner tube assembly and the main body bracket, the front mounting assembly is not subjected to stress when an engine is totally static or generates stimulation. Through the front mounting assembly used for the power assembly, it is ensured that the front mounting assembly is not subjected to stress when the engine is totally static or generates stimulation, accordingly the vibration bang path is shortened, and the overconstrained effect is eliminated, and a superior NVH performance is achieved.

Description

technical field [0001] The invention relates to the field of vehicles, in particular to a front suspension assembly for a power assembly. Background technique [0002] The powertrain suspension structure is an indispensable part of the car. It is installed between the powertrain and the subframe. It mainly performs the following functions: supporting the weight of the powertrain and determining the position of the powertrain; isolating the transmission of the engine to the body vibration; withstand the torque and dynamic load output by the powertrain; act as a shock absorber to attenuate the vibration caused by uneven road surfaces. A good suspension structure design is conducive to improving the idling vibration and acceleration noise of the vehicle, thereby improving the comfort of the vehicle. [0003] NVH (Noise, Vibration, Harshness, noise, vibration and harshness) performance is an important performance index in the new car development process, and has become the focu...

AI Technical Summary

Problems solved by technology

It is impossible for the front suspension assembly of this structure to be completely free of force. When the engine is working, even if the component is not under static force, the suspension will still function when the engine vibrates. To constrain the vibration of the powertrain and transmit the excitation, thus affecting the vibration isolation performance of the system

Moreover, due to the greater difficulty in assembly convenience and consistency, since the front and rear suspensions are generally arranged on the upper part of the crossbeam of the sub-frame, the assembly space is narrow and difficult to operate, and therefore the assembly sequence is often not as designed. This will lead to the distortion of the suspension rubber during the assembly process, which will directly affect the vibration isolation performance of the suspension system and the stability of the NVH of the vehicle.

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