Trailing arm suspending frame with double-transverse stay bar structure

Abstract

The invention discloses a trailing arm suspending frame with a double-transverse stay bar structure, belonging to the field of a vehicle suspending frame. The suspending frame mainly comprises a trailing arm, a hub shaft, a mounting support, a spring seat, a vibrator mounting support and a cross beam, wherein the trailing arm, the hub shaft, the mounting support, the spring seat, the vibrator mounting support, a fixing rod and a flange plate are arranged at two ends of the cross beam in a bilateral symmetry way; and transverse stay bars are hinged at the external ends of two symmetric fixing rods respectively. According to the trailing arm suspending frame, the shorter double-transverse stay bar structure can bear great transverse load produced during turning of the vehicle; with high deflection resistance, the transverse stay bar can be prevented from deflecting and failing during running of a vehicle, as well as achieving stability and improving the operation performance of the whole vehicle; and the cracking risk of a coupling support of the transverse stay bar can be reduced. The suspending frame has the advantages of compact structure, occupation of small space, large arrangement space remained for a chassis of the vehicle, convenience for rational layout of other parts such as an exhaust pipe and capability of guaranteeing high stability.

Description

technical field [0001] The invention relates to the field of vehicle suspension, in particular to a trailing arm suspension with a double cross brace structure. Background technique [0002] Suspension is an important part of the vehicle, a connecting force transmission device between the body and the wheels, and an important component of the driving safety and comfort of the vehicle. There are many types of suspensions. The commonly used suspension structures include torsion beam suspension, trailing arm suspension, McPherson suspension, double wishbone suspension and multi-link suspension. The trailing arm suspension is adopted by many models because of its simple structure, low manufacturing cost, and good cost performance. The suspension system should also meet the dynamic requirements on the basis of meeting the strength. When the vehicle is turning, the suspension system bears a large lateral force. In the existing trailing arm suspension system, a very long cross br...

AI Technical Summary

Problems solved by technology

There are many disadvantages of this structure. First, the cross brace is a long member, which bears a large axial force and also bears a certain bending moment, which is prone to buckling failure; Under the floor, the suspension is a kinematic system. In order to avoid interference between the cross brace and other components such as the exhaust pipe, a large space needs to be left, which brings difficulties to the layout; the third is that one end of the cross brace structure and one side of the suspension The other end is connected to the bracket on the frame. This connection structure causes unequal force when turning in the left and right directions, which affects the handling performance of the vehicle.

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