What is the front steering knuckle of a car
The front Steering Knuckle, also known as the "horn" or wheel bracket, is one of the core components in the steering system of the car. Its main functions include:
Connect the wheels to the suspension
The steering knuckle connects the wheels to the suspension system through its structure, ensuring that the wheels can rotate flexibly while transferring various forces (such as vertical forces, driving forces, braking forces, etc.) from the road surface to the body.
Implement the car steering
When the driver rotates the steering wheel, the steering knuckle is connected to the front axle through the kingpin, driving the front wheel to deflect around the kingpin at a certain Angle, so as to realize the steering function of the car.
Bearing load and impact
In the process of vehicle driving, the steering knuckle is subjected to variable impact loads, so it needs to have high strength and stiffness to ensure the safety and stability of the vehicle.
support wheel
The steering knuckles not only bear the weight of the wheel itself, but also deal with the transverse and longitudinal forces in the vehicle to ensure that the wheel remains stable under various driving conditions.
Improved ride comfort
Through its internal structural design, the steering knuckle can effectively absorb the impact and vibration caused by the uneven road surface, so as to improve the ride comfort and ride comfort of the vehicle.
Structure and type of steering knuckle
The steering knuckle is usually composed of three parts: supporting journal, flange and fork frame. The shape is complex, and the structural characteristics of four kinds of parts are concentrated, such as shaft, sleeve, disc ring and fork frame. Depending on the design, steering knuckles can be divided into:
independent steering knuckle : For independent suspension system.
Rigid steering knuckle : for non-independent suspension systems.
Sum up
Although the front steering knuckle is insignificant, it plays a vital role in the handling stability, safety and driving comfort of the vehicle. It is an indispensable key component in the automotive steering system, ensuring the flexibility and stability of the vehicle during driving.
The main functions of the front steering knuckle include the following aspects:
Stable running and sensitive steering : The steering knuckle is one of the main parts of the automobile steering bridge, which can make the car run stably and transmit the driving direction sensitively. It supports and drives the front wheel to rotate around the kingpin, thus realizing the steering action of the car .
Bearing load and transmitting power : The steering knuckle bears the load on the front of the car to ensure that the vehicle can stably withstand a variety of complex and changeable impact forces during driving. It effectively transmits and bears these loads by supporting structural components such as journal, flanges and fork racks .
Connecting wheels to suspension : The steering knuckles act as a bridge between the wheels and suspension, connecting the front wheels to the body and ensuring smooth steering when the driver is operating the steering wheel. It is connected with the front axle through the kingpin, so that the front wheel can deflect a certain Angle around the kingpin, so as to realize the steering function of the car .
Ensure driving safety : Because the steering knuckle is subjected to variable impact loads during vehicle driving, it is required to have extremely high strength and durability. This ensures the stability and safety of the car at high speeds and in complex road conditions .
Structural characteristics and working principle
The steering knuckle is usually composed of three parts: a bearing journal, a flange and a fork. The supporting journal is a ladder shaft structure, the flange plate comprises a flange face, a connecting bolt through hole and a steering limit threaded hole, and the fork frame is composed of the upper and lower ears and the flange face of the steering joint. These structural features enable the steering to transfer loads and movements energy-efficient and efficiently, and to adapt to different working conditions .
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