Double-rocker arm type independent suspension system

Abstract

The invention relates to a double-rocker arm type independent suspension system, which comprises a front axle support assembly connected with a frame, an upper rocker arm, a lower rocker arm and shock absorbers, wherein the front axle support assembly is welded into a whole through support rods; and the upper rocker arm, the lower rocker arm and the shock absorbers are symmetrically arranged on two sides of the front axle support assembly, the upper rocker arm and the lower rocker arm are in axial rotation connection with an upper lifting lug and a lower lifting lug respectively, and the upper lifting lug and the lower lifting lug are in rotation connection with steering knuckles. The double-rocker arm type independent suspension system is simple in structure, and can reduce the assembly difficulty and enable a vehicle to be always in the good working state.

Description

technical field [0001] The invention relates to a double-rocker independent suspension system, in particular to a double-rocker independent suspension system applied to the front wheels of electric vehicles. Background technique [0002] Existing electric golf carts, electric cars with 2-6 seats, the front axle generally adopts front leaf springs and a non-independent front axle to connect with the vehicle frame. The structure is that the leaf spring is connected to the frame, and then the front axle is fixed on the leaf spring. When the vehicle is running, the range of the up and down jump of the wheel is determined by the elastic performance of the leaf spring. Due to the limitation of the elastic performance range of the leaf spring, the range of the up and down jump of the front wheel will not be very large. In this way, the comfort is relatively poor when the road is bumpy; In addition, the leaf spring bears the pressure of the vehicle body and must ensure the fixed po...

AI Technical Summary

Problems solved by technology

When the vehicle is running, the range of the up and down jump of the wheel is determined by the elastic performance of the leaf spring. Due to the limitation of the elastic performance range of the leaf spring, the range of the up and down jump of the front wheel will not be very large. In this way, the comfort is relatively poor when the road is bumpy; In addition, the leaf spring bears the pressure of the vehicle body and must ensure the fixed position of the front axle. Therefore, a limit position must be set when the leaf spring is assembled, which increases the difficulty of assembly.

[0003] In order to solve the above problems, U.S. Patent No. 7,581,740 disclosed an independent suspension system for golf vehicles on September 1, 2009. It is a double rocker independent suspension system. The overall mechanism is composed of a detachable main structure , upper rocker arm, lower rocker arm, shock absorber, steering gear, etc. This structure can be disassembled flexibly and two steering gear options can be made according to needs. The structure of the connection point between the rocker arm and the kingpin is a simple bolt hole, which will cause motion interference when the tire jumps up and down

Moreover, the installation space of the steering gear is narrow and inconvenient to install

At the same time, the front wheel independent suspension system is connected by a large number of bolts, the accuracy of the hole positions of the components is relatively high, there are many assembly points, and the installation is complicated

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