Connection liner structure of twist beam-type rear suspension

Abstract

The invention provides a connection liner structure of a twist beam-type rear suspension. The connection liner structure comprises an inner liner tube and an outer liner tube, a rubber material is filled and bonded in an axial annular space between the inner liner tube and the outer liner tube, a planar rubber gasket is arranged between a flange disc of the inner liner tube and a flange disc of the outer liner tube, and the planar rubber gasket is bonded with the flange disc of the outer liner tube and has a gap from the flange disc of the inner liner tube. The structure replaces a thicker turned-over edge integral with the axial rubber material between the flanges of the inner liner tube and the outer liner tube with the planar rubber gasket to reduce the gap between the flanges of the inner liner tube and the outer liner tube, therefore, when a car turns, the structure rapidly eliminates the gap between the planar rubber gasket and the flange disc of the inner liner tube, rapidly improves Z linear rigidity of the liner and X and Y torsional rigidity, and keeps Z torsional rigidity and X and Y linear rigidity constant, and can simultaneously improve operation stability and smoothness, increase stress on the liner rubber material and be favorable to prolonging the service life of the liner.

Description

technical field [0001] The invention belongs to the automobile rear suspension system technology, in particular to a connection bushing structure used in the connection and installation of a torsion beam type rear suspension and a vehicle body. Background technique [0002] The torsion beam rear suspension is widely used in the rear suspension of cars. The torsion beam rear suspension is connected to the body through the bushing assembly, which has the function of guiding and vibration isolation, and bears all the forces and vibrations except the spring force and shock absorber force. torque, which has a great influence on the handling stability, ride comfort and service life of the rubber bushing; in addition, the structural design of the bushing assembly involves the rubber bushing itself and other functions and production processes, thus affecting its cost . [0003] The rigidity of the torsion beam type rear suspension connecting bush includes the linear rigidity in the...

AI Technical Summary

Problems solved by technology

The existing bushing assembly structure see figure 1 and figure 2 , which includes an outer liner 1 and an inner liner 3 that are set together. There are flanges 5 and 6 at the same end of the inner and outer liners respectively, and a rubber material 2 is filled and bonded between the inner and outer liners. The rubber material The flanging between the inner liner flange and the outer liner flange, the rubber flanging is tightly bonded to the inner liner flange and the outer liner flange, the bushing with this structure, The rubber material is connected with the inner and outer lining pipes in the axial and radial directions as a whole, and the force on the rear axle is transmitted to the inner lining pipe and the vehicle body through the integral rubber material of the bushing, and the stiffness in the six directions is either Either large or small, so it cannot satisfy the stability performance and good ride comfort at the same time

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