What is the rear steering knuckle of a car
The rear steering knuckle is an important part of the automotive suspension system, usually located in the rear wheel part. Its main function is to connect the wheel and suspension system to ensure that the rear wheel can steer smoothly when the driver operates the steering wheel, and withstand and transmit various forces and torque from the wheel and body .
Structure and working principle
The rear steering knuckle is usually composed of two parts: the steering knuckle arm and the steering knuckle body. One end of the knuckle arm is connected to the hub of the tire, and the other end is connected to the knuckle body. The other end of the steering knuckle body is connected with the steering gear of the car through the ball head connecting rod. When the driver rotates the steering wheel, the steering gear transmits the force to the steering knuckle through the connecting rod mechanism, so that the tire deflects in the direction of the vehicle, thus realizing the steering function of the car .
Types and functional characteristics
Automotive rear steering knuckles are usually made of wrought steel or cast iron to ensure their durability. According to the different suspension system, steering knuckles can be divided into independent knuckles of independent suspension system and rigid knuckles of non-independent suspension system .
In addition, the rear steering knuckle also needs to withstand variable impact loads, so it is required to have a high strength .
The main function of the rear steering knuckle consists of connecting the wheels to the suspension system to ensure that the wheels can steer smoothly when the driver operates the steering wheel. In addition, the rear knuckle also carries the force transfer between the wheel and the body, supports the wheel rotation, and transmits the force and torque generated by the wheel .
Features of construction and design The rear knuckle is usually made of wrought steel or cast iron to ensure its robustness and durability. The design is divided into independent knuckles for independent suspension system and rigid knuckles for non-independent suspension system .
The specific role of the rear steering knuckle in the running of the car includes:
Connect the wheels to the suspension : ensure that the wheels can rotate freely in multiple directions .
bear load : transfer and bear the load on the front of the car, support and drive the front wheel to rotate around the kingpin, so that the car can run stably and transfer the driving direction sensitively .
flexible steering : by adjusting the steering knuckle, the steering Angle of the wheel can be changed to achieve the flexible steering of the vehicle .
strength requirements : in the driving state, the rear steering knuckle bears variable impact loads, so it is necessary to have a high strength .
rear steering knuckle care and maintenance recommendations include regular inspection of steering knuckle wear and timely replacement of worn parts such as bronze bushing and grease to ensure the proper working of the steering knuckle .
In addition, maintaining proper lubrication and adjusting clearance are also important measures to maintain the rear steering knuckle performance .
The main symptoms of rear steering knuckle failure in a car include :
unstable vehicle running : steering joint damage will lead to the decline of stability of the vehicle, the driving process may appear deviation, shaking and other phenomena .
steering wheel vibration : steering knuckle failure will cause the steering wheel vibration during the driving process, affecting the driving comfort .
uneven tire wear : Steering knuckle damage may cause uneven contact between the tire and the ground, thus accelerating tire wear .
abnormal noise : during the driving process, you may hear abnormal noise from the chassis, which may be caused by steering knuckle damage .
reduced braking performance : steering knuckle damage may affect the vehicle's braking system, thereby reducing braking performance .
steering difficulties : damage to the steering knuckle will cause the steering system of the vehicle to fail to work normally, making the driver feel difficult to control the vehicle .
steering wheel free travel is too large and sound : steering knuckle damage may also cause the steering wheel free travel is too large, and when rotating the steering wheel will emit abnormal sound .
heavy steering : Damaged steering knuckles may make the steering wheel heavy .
Definition and functions of steering knuckle :
Steering Knuckle (Steering Knuckle), also known as "sheep Angle", is one of the important parts of the automobile steering bridge, which can make the car run stably and transmit the direction of travel sensitively. It bears and transmits the load of the front of the car, supports and drives the front wheel to rotate around the kingpin and makes the car turn. In the driving state of the vehicle, the steering knuckle bears variable impact loads, so it is required to have a high strength .
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