Structure for connecting swing arm lining with sub vehicle frame

Abstract

The invention relates to a structure for connecting a swing arm lining with a sub vehicle frame. The inner framework of the swing arm lining is flat; the two ends of the swing arm lining are protruded out of a middle rubber body and a lining outer pipe; a bolt hole is formed in each of the two ends of the swing arm lining; a through hole is formed in a sub vehicle frame; a threaded casing pipe is arranged in the sub vehicle frame; the bolt holes, the through hole and the threaded casing pipe are communicated with one another; a sink which is toward the inner side is formed in the part, corresponding to each of the middle rubber body and the lining outer pipe, on the sub vehicle frame; the swing arm lining is fixedly connected with the sub vehicle frame in the way that a bolt is matched with the threaded casing pipe. In the technical scheme, due to the fact that the sub vehicle frame is flatly stuck to the inner framework, abnormal sound caused when the inner framework of the swing arm lining moves in the manner of being relative to a gear-starting structure is avoided, and the promotion of NVH (Noise Vibration and Harshness) is benefited; due to the fact that secondary welding of the frame is not required, the rigidity of a mounting part is high, and meanwhile, the mounting space is saved; due to the fact that the sub vehicle frame is molded by drilling and casting a complete plate, the drilling precision is high, and the production is easy to control; due to the fact that the threaded casing pipe is adopted, the assembling process is simple.

Description

technical field [0001] The invention belongs to the technical field of automobile suspension systems, and in particular relates to a connection structure between a swing arm bush and a sub-frame. Background technique [0002] The subframe can be regarded as the skeleton of the front and rear axles, and is an integral part of the front and rear axles. The role of the subframe is to block vibration and noise, reducing its direct entry into the compartment. This suspension assembly with subframe, in addition to bringing various conveniences and advantages in design and installation, the most important thing is the improvement of its comfort and suspension rigidity. Some spare parts of the suspension are assembled to the subframe to form an assembly part and then connected to the body, which brings convenience to the assembly. The subframe is generally connected to the body through rubber bushings. [0003] The introduction of rubber components into the suspension system can ...

AI Technical Summary

Problems solved by technology

[0007] 1. The opening precision is low and difficult to control;

[0008] 2. The assembly is complicated;

[0009] 3. High requirements for bolts and nuts;

[0010] 4. It is easy to produce abnormal noise;

[0011] 5. The dynamic stiffness of the connecting bracket is insufficient, which is not conducive to NVH performance

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