Engine hydraulic suspension limiting structure

Abstract

An engine hydraulic suspension limiting structure comprises a driving side support, a rubber main spring, a limiting structure body, a disturbed flow disc, a flow channel cover, a decoupling membrane, an aluminum flow channel and a driven side support. The lower end of the driving side support extends into the driven side support of a hydraulic suspension and is fixedly riveted with the disturbed flow disc. The limiting structure is arranged in the driven side support, the upper end of the limiting structure sleeves the outer portion of the lower end of the driving side support and presses the disturbed flow disc, and the lower end of the limiting structure is riveted to the flow channel cover and the aluminum flow channel to be fixed with the driven side support of the hydraulic suspension. The decoupling membrane is installed between the flow channel cover and the aluminum flow channel. Movement of a power assembly is transmitted to the disturbed flow disc through the driving side support, the limiting structure and the flow channel cover can effectively control movement of the disturbed flow disc so as to achieve the goal of effectively controlling movement of the power assembly, and comfort and safety of a whole vehicle are improved.

Description

technical field [0001] The invention relates to an automobile engine, in particular to a position-limiting structure of an engine hydraulic mount. Background technique [0002] With the continuous development of the economy, while the people's living standards continue to improve, the requirements for the quality of life are also getting higher and higher, and the requirements for the comfort and safety of the car, which is an indispensable means of transportation for human beings, are also increasing. Higher and higher. As we all know, the engine mount not only has the characteristics of isolating the vibration of the engine or the road surface, but also controls the movement of the engine powertrain under the conditions of braking, turning, jumping and acceleration, that is, the limit function. For the limit design of traditional hydraulic mounts, see figure 1 with figure 2 Generally, the limit structure 3 is designed on the outer ring of the main spring, and the inter...

AI Technical Summary

Problems solved by technology

For the limit design of traditional hydraulic mounts, see figure 1 and figure 2 Generally, the limit structure 3 is designed on the outer ring of the main spring, and the internal spoiler 4 and the aluminum runner 7 have no limit capacity. This design will have the following problems: 1. The limit structure on the outer ring will cause suspension The volume becomes larger, which is not conducive to the layout of the whole vehicle; 2. The design has no limit structure in the negative direction of Z. Under extreme working conditions, the displacement of the powertrain is too large, which will not only cause interference between the powertrain and surrounding components It will also cause the spoiler 4 and the decoupling diaphragm 6 to collide, affect the NVH performance of the suspension, produce abnormal noise, and cause premature fatigue failure of the rubber main spring 2

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