Independent suspension system and crane with same

Abstract

The invention discloses an independent suspension system. Two suspension oil cylinders are arranged between wheel edges of wheels on two sides and a frame respectively, and a steering mechanism drives the wheels on the two sides to perform steering. Two upper V-shaped swing rods and two lower V-shaped swing rods are arranged corresponding to the wheels on the two sides. Rod connection end portions of the two upper V-shaped swing rods are hinged to the upper portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two upper V-shaped swing rods are hinged to fixing members fixed below the frame along the lateral direction. Rod connection end portions of the two lower V-shaped swing rods are hinged to the lower portions of the wheel edges of the wheels on corresponding sides through spherical hinges respectively, and rod separation end portions of the two lower V-shaped swing rods are hinged to the fixing members fixed below the frame along the lateral direction. By means of the independent suspension system, possible frustrating effects caused by the suspension oil cylinders can be avoided, mutual independent motion of the wheel on the left side and the wheel on the right side can be achieved reliably, adhesion conditions of the ground are fully utilized, and control stability of the complete machine is improved. On the basis, the invention further comprises a crane with the independent suspension system.

Description

Technical field [0001] The invention relates to the technical field of engineering machinery, in particular to an independent suspension system and a crane with the independent suspension system. Background technique [0002] As we all know, for large and heavy-duty all-terrain construction machinery, the driving stability of the chassis directly affects the operating performance of the whole machine. In addition to the chassis power system, its suspension system is a key factor affecting driving stability. [0003] Taking the chassis suspension system of an all-terrain crane as an example, traditional rigid bridges are commonly used. According to the structural characteristics of the guiding mechanism, it is mainly divided into two categories: non-independent suspension and independent suspension; among them, the left and right wheels of the non-independent suspension are mounted on an integral rigid shaft or the axle housing of a non-disconnected drive axle. The independent sus...

AI Technical Summary

Problems solved by technology

[0007] First of all, the side of the guide sleeve of the suspension cylinder is connected to the frame, and the lower end of the piston rod is connected to the wheel edge. The weight of the vehicle body and the reaction force applied to the tire by the ground all act on the suspension cylinder, which has poor force characteristics and affects the service life.

[0008] Secondly, the entire steering mechanism is installed above the main reducer, which cannot effectively control the minimum clearance between the main reducer and the ground, resulting in poor trafficability.

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