Vehicle engine suspension structure

Abstract

The invention discloses a vehicle engine suspension structure which comprises a suspension bracket, a suspension framework body, a bearing pin arranged on the suspension bracket and a rubber main spring which is arranged on a sleeve ring of the suspension framework body, wherein the bearing pin passes through the rubber main spring which is positioned above the suspension bracket and is of a four-rib structure. According to the vehicle engine suspension structure disclosed by the invention, the direction of the rubber main spring is regulated to be consistent with the Z direction of a whole vehicle, and the needed space in the Z direction is greatly reduced as a disc type is selected; the rubber main spring is of a four-rib structure, so that the rigidity in each direction is relatively reasonable.

Description

technical field [0001] The invention relates to a vehicle engine suspension structure. Background technique [0002] At present, the powertrain layout of small cars is mostly horizontal, and the fixing method is fixed at four or three points. The mount on the left side of the powertrain is generally a cylindrical bushing rubber mount, which is easy to process. , the process is mature, the design of the rubber structure is simple, and the cost is low. [0003] Cylindrical bush-type rubber mounts require a diameter above a certain size to meet the structural design requirements. In this case, a large enough space is required to arrange parts; the stiffness of the rubber main spring along the direction of the geometric central axis is much smaller than that of the other two One direction, and it is difficult to adjust, so when the powertrain moves, the displacement in this direction is relatively large, and it is necessary to add anti-collision pads between the skeleton body a...

AI Technical Summary

Problems solved by technology

[0003] Cylindrical bush-type rubber mounts require a diameter above a certain size to meet the structural design requirements. In this case, a large enough space is required to arrange parts; the stiffness of the rubber main spring along the direction of the geometric central axis is much smaller than that of the other two One direction, and it is difficult to adjust, so when the powertrain moves, the displacement in this direction is relatively large, and it is necessary to add anti-collision pads between the skeleton body and the bracket on both sides of the bushing to limit; due to the three directions There is a large difference in the stiffness of the vehicle, which leads to poor decoupling effect of the entire suspension system, which is not conducive to the improvement of the NVH performance of the vehicle.

Images