Steering knuckle used for automobile

Abstract

The invention discloses a steering knuckle used for an automobile. According to the steering knuckle used for the automobile, a damping regulator is placed outside a working cylinder for enabling manufacturing and machining technology to not be too complicated, and designing, manufacturing and machining on the damping regulator are mainly focused on. For effectively increasing damping channel length, a pipeline is enabled to be distributed around a middle piston, a flow direction of magnetorheological fluid in the damping regulator is perpendicular to a direction of a magnetic field, and magnetic-circuit designing criteria are met. In working, a piston rod under the action of external force forces the magnetorheological fluid to flow from an oil guiding pipe of one chamber of the workingcylinder into the damping regulator, and return to the other chamber through multi-level circumferential flow, and a pressure drop is formed in flow to generate corresponding damping force on the piston rod. Through controlling an excitation current of the damping regulator, intensity of the magnetic field in a circumferential flow channel is changed, then flow characteristics of the magnetorheological fluid are controlled, and thus damping force of a magnetorheological-fluid shock absorber is controlled.

Description

technical field [0001] The invention relates to a steering knuckle for automobiles, belonging to the technical field of mechanical manufacturing. Background technique [0002] The variable steering knuckle is the core part of the intersection of the axle, suspension and steering system transmission mechanism. It is mainly used for bearing and steering, that is, supporting the weight of the car body, transmitting the steering torque and bearing the braking torque of the front wheel. Therefore, there are requirements on the strength, impact resistance and reliability of the steering knuckle, so the design of the steering knuckle is usually over-designed. The position of the steering knuckle is special, and there are many connecting parts. In order to avoid movement interference, the design of the steering knuckle will be limited by space, resulting in weak parts and stress concentration parts, resulting in the performance of the steering knuckle strength and fatigue not meetin...

AI Technical Summary

Problems solved by technology

[0005] The positive effect of the present invention is: use the finite element simulation to optimize the structure of the steering knuckle aiming at the weak parts and stress concentration parts of the steering knuckle, which not only solves the problem of stress concentration, but also reduces the weight of the steering knuckle

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