Suspension device in front of vehicle driving cab and heavy vehicle

Abstract

The invention discloses a suspension device in front of a vehicle driving cab, relating to the technical field of vehicle shock absorption. The suspension device comprises a transverse stabilizer bar (10) and a first suspension device, wherein the first suspension device is arranged at the end part of the transverse stabilizer bar (10) and comprises an upper bracket (1), a shock absorber (5), an overturning arm (12) and an overturning seat (6). The suspension device in front of the vehicle driving cab is characterized in that the overturning arm (12) is located at one side of the transverse stabilizer bar (10), and the other end of the overturning arm (12) is fixedly connected with one end of the transverse stabilizer bar (10); the upper end of the shock absorber (5) is connected with the upper bracket (1), and the lower end of the shock absorber (5) is connected with the transverse stabilizer bar (10); the bottom of the upper bracket (1) is connected with the overturning arm (12); and the end part of the transverse stabilizer bar (10) is supported by the overturning seat (6). The invention also discloses a heavy vehicle with the suspension device in front of the vehicle driving cab.

Description

technical field [0001] The invention relates to the technical field of automobile shock absorption, in particular to a front suspension device of an automobile cab. The present invention also relates to a heavy-duty vehicle with the above-mentioned vehicle cab front suspension device. Background technique [0002] With the development of automobiles, people's requirements for automobiles are no longer limited to the appearance and safety performance of vehicles, but also higher and higher requirements for the comfort of vehicles. Comfort has an important impact. In the traditional design, the cab of a commercial vehicle is directly connected to the frame, and the road impact suffered by the vehicle while driving will be directly transmitted to the cab, so the ride comfort of the cab is poor. [0003] With the continuous improvement of people's requirements for the comfort of cars, some commercial vehicles use rubber pads as the connection between the cab and the frame. This...

AI Technical Summary

Problems solved by technology

[0005] In this type of car full-floating front suspension device, the middle of the flip arm is fixed with the stabilizer bar, one end of the shock absorber is connected with the end of the flip arm, and there is a certain force between the shock absorber and the stabilizer bar. Arm, since the shock absorber is the stress point of the cab, the pressure exerted by the cab is transmitted to the flip arm through the shock absorber, so that when the cab jumps or flips, under the action of the cab, the stabilizer bar There are both bending moment and torque, which leads to poor anti-rolling performance of the cab, and is prone to large lateral swing of the cab; in this structure of the car's full-floating front suspension, both ends of the stabilizer bar pass through curved The torsion tube is connected to the left and right flip arms, and the force and torsional rigidity of the stabilizer bar in this structure are relatively poor, which further reduces the anti-roll performance of the cab

[0006] In addition, the middle of the flip arm is connected to the horizontal stabilizer bar, one end of the flip arm is connected to the shock absorber, and the other side is suspended to form an upper bracket abutting end, and the upper bracket corresponds to the upper bracket abutting end of the flip arm The rubber damping block is installed on the lower surface of the upper bracket through screws. The vibration of the vehicle will easily loosen the screws and cause the rubber damping block to fall off. The rubber damping block is a vulnerable part. The installation method is easy to make it inconvenient to install and disassemble after the rubber damping block is lost or damaged

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