Independent suspension system and crane with same

Abstract

The invention discloses an independent suspension system which comprises two suspension oil cylinders arranged between the edges of wheels on two sides and a frame respectively, a steering mechanism used for driving the wheels on the two sides to make a turn under the drive action of a power-assisted steering oil cylinder, and two swing rods corresponding to the wheels on the two sides, wherein one end part of each swing rod is hinged to the edge of the wheel on the corresponding side through a spherical hinge, and the other end part of the swing rod is hinged to fixing members fixed below a main speed reducer in a front-rear direction through two spherical hinges respectively. Through the structural improvement, tires mounted on the wheel edges can be positioned, the tire motion in the moving process of a crane is guaranteed to meet the design requirement, and the possible destructive influence of the suspension oil cylinders can be completely avoided, so that the wheels on the left and right sides can reliably and independently move; the adhesion conditions of a road surface are fully utilized, so that the control stability of the complete crane can be improved. Based on the independent suspension system, the invention further provides the 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 heavy-duty all-terrain construction machinery, the driving stability of its chassis directly affects the operation 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 the non-disconnected drive axle. The independen...

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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